* [PATCH v2 0/31] Add additional sandbox features and infrastructure
@ 2014-02-27 20:25 ` Simon Glass
0 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:25 UTC (permalink / raw)
To: U-Boot Mailing List
Cc: u-boot-review-hpIqsD4AKlfQT0dZR+AlfA, Simon Glass,
Mike Frysinger, Devicetree Discuss, Jagannadha Sutradharudu Teki,
Jagannadha Sutradharudu Teki
At present sandbox only supports a basic set of features. To help address
this, a recent series added SPI and SPI flash support; this series expands
the coverage further.
Firstly SDL is used to provide LCD and audio support. Sandbox gains its own
LCD driver which can display images, host a command line, etc. The audio
support is basic and needs additional work, but it is a starting point.
SDL also provides a keyboard emulation (using the Chrome OS EC code as a
base).
Secondly a TPM emulation is added. This does not include all features (the
implementation is quite simplistic) but it is enough to do basic secure
boot operations.
Finally, various pieces of useful infrastructure are added, including:
- loading and saving of the emulated SDRAM to permit test runs to carry
over state
- loading and saving of general sandbox state (for example a driver can
save its stage and reload it on the next run)
- support for using bootm to load a kernel
- providing a device tree for use by sandbox
- a means to jump to another U-Boot while preserving state (useful for
test environments which want to run a series of tests with
script-selectable state)
Major functions which still remain without sandbox support are I2C,
networking and USB.
Note:
Much of this series was sent out in November. Due to problems with the
LCD side it was not ready for the last release, although about a dozen
patches from the series were applied. I have rebased and tidied things
up. U-Boot now starts by default without the LCD visible since for
much sandbox testing we don't want the LCD. The Chrome OS EC code has been
updated and tidied up and full keyboard support is now present in the LCD
window.
Changes in v2:
- Add new patch to adjust #ifdef position in cros_ec
- Add new patch to sync with latest Chrome OS EC version
- Add new patches to bring in protocol v3 support
- Rebase to master
- Update series to take account of patches now merges from original series
Randall Spangler (2):
cros_ec: Clean up multiple EC protocol support
cros_ec: spi: Add support for EC protocol version 3
Simon Glass (27):
Use a const pointer for map_to_sysmem()
sandbox: Increase memory size to 32MB
sandbox: Build a device tree file for sandbox
sandbox: Use os functions to read host device tree
sandbox: dts: Add display and keyboard to sandbox
cros_ec: Add an enum for the number of flash regions
cros_ec: Add a function for reading a flash map entry
cros_ec: Add a function for decoding the Chrome OS EC flashmap
cros_ec: Support systems with no EC interrupt
cros_ec: Move #ifdef to permit flash region access
cros_ec: Sync up with latest Chrome OS EC version
cros_ec: Add base support for protocol v3
cros_ec: Correct comparison between signed and unsigned numbers
cros_ec: sandbox: Add Chrome OS EC emulation
sandbox: Plumb in Chrome OS EC emulation
cros_ec: Implement I2C pass-through
sandbox: Add os_jump_to_image() to run another executable
sandbox: Add -j option to indicate a jump from a previous U-Boot
sandbox: Add SDL library for LCD, keyboard, audio
sandbox: Add a simple sound driver
sandbox: Add LCD driver
sound: Move Samsung-specific code into its own file
sandbox: Deal with conflicting getenv() for SDL
sandbox: Allow Ctrl-C to work in sandbox
sandbox: Add options to clean up temporary files
sandbox: Add implementation of spi_setup_slave_fdt()
sandbox: config: Enable cros_ec emulation and related items
Vadim Bendebury (2):
cros_ec: Move EC interface into common library
cros_ec: Drop old EC version support from EC driver
Makefile | 3 +-
arch/sandbox/config.mk | 5 +
arch/sandbox/cpu/Makefile | 3 +
arch/sandbox/cpu/cpu.c | 2 +-
arch/sandbox/cpu/os.c | 108 ++++-
arch/sandbox/cpu/sdl.c | 341 ++++++++++++++
arch/sandbox/cpu/start.c | 60 +++
arch/sandbox/cpu/state.c | 6 +-
arch/sandbox/dts/Makefile | 11 +
arch/sandbox/dts/sandbox.dts | 125 ++++++
arch/sandbox/include/asm/arch-sandbox/sound.h | 14 +
arch/sandbox/include/asm/sdl.h | 118 +++++
arch/sandbox/include/asm/state.h | 29 +-
arch/sandbox/include/asm/u-boot-sandbox.h | 3 +
board/samsung/common/board.c | 29 +-
board/samsung/smdk5250/exynos5-dt.c | 1 -
board/sandbox/sandbox/sandbox.c | 49 ++-
common/Makefile | 1 +
common/board_f.c | 48 +-
common/cros_ec.c | 44 ++
common/lcd.c | 21 +-
disk/part.c | 17 -
doc/device-tree-bindings/video/sandbox-fb.txt | 13 +
drivers/input/cros_ec_keyb.c | 34 +-
drivers/misc/Makefile | 1 +
drivers/misc/cros_ec.c | 611 +++++++++++++++++++++++---
drivers/misc/cros_ec_i2c.c | 64 ++-
drivers/misc/cros_ec_lpc.c | 80 +---
drivers/misc/cros_ec_sandbox.c | 559 +++++++++++++++++++++++
drivers/misc/cros_ec_spi.c | 30 ++
drivers/serial/sandbox.c | 10 +-
drivers/sound/Makefile | 4 +-
drivers/sound/sandbox.c | 23 +
drivers/sound/sound-i2s.c | 208 +++++++++
drivers/sound/sound.c | 221 +---------
drivers/spi/sandbox_spi.c | 13 +
drivers/video/Makefile | 1 +
drivers/video/sandbox_sdl.c | 79 ++++
include/common.h | 6 +
include/configs/exynos5250-dt.h | 1 +
include/configs/sandbox.h | 41 +-
include/cros_ec.h | 94 +++-
include/cros_ec_message.h | 2 +-
include/ec_commands.h | 348 +++++++++++++--
include/fdtdec.h | 20 +
include/lcd.h | 3 +
include/os.h | 27 +-
include/sound.h | 9 +
lib/fdtdec.c | 26 ++
49 files changed, 3032 insertions(+), 534 deletions(-)
create mode 100644 arch/sandbox/cpu/sdl.c
create mode 100644 arch/sandbox/dts/Makefile
create mode 100644 arch/sandbox/dts/sandbox.dts
create mode 100644 arch/sandbox/include/asm/arch-sandbox/sound.h
create mode 100644 arch/sandbox/include/asm/sdl.h
create mode 100644 common/cros_ec.c
create mode 100644 doc/device-tree-bindings/video/sandbox-fb.txt
create mode 100644 drivers/misc/cros_ec_sandbox.c
create mode 100644 drivers/sound/sandbox.c
create mode 100644 drivers/sound/sound-i2s.c
create mode 100644 drivers/video/sandbox_sdl.c
--
1.9.0.279.gdc9e3eb
--
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^ permalink raw reply [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 0/31] Add additional sandbox features and infrastructure
@ 2014-02-27 20:25 ` Simon Glass
0 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:25 UTC (permalink / raw)
To: u-boot
At present sandbox only supports a basic set of features. To help address
this, a recent series added SPI and SPI flash support; this series expands
the coverage further.
Firstly SDL is used to provide LCD and audio support. Sandbox gains its own
LCD driver which can display images, host a command line, etc. The audio
support is basic and needs additional work, but it is a starting point.
SDL also provides a keyboard emulation (using the Chrome OS EC code as a
base).
Secondly a TPM emulation is added. This does not include all features (the
implementation is quite simplistic) but it is enough to do basic secure
boot operations.
Finally, various pieces of useful infrastructure are added, including:
- loading and saving of the emulated SDRAM to permit test runs to carry
over state
- loading and saving of general sandbox state (for example a driver can
save its stage and reload it on the next run)
- support for using bootm to load a kernel
- providing a device tree for use by sandbox
- a means to jump to another U-Boot while preserving state (useful for
test environments which want to run a series of tests with
script-selectable state)
Major functions which still remain without sandbox support are I2C,
networking and USB.
Note:
Much of this series was sent out in November. Due to problems with the
LCD side it was not ready for the last release, although about a dozen
patches from the series were applied. I have rebased and tidied things
up. U-Boot now starts by default without the LCD visible since for
much sandbox testing we don't want the LCD. The Chrome OS EC code has been
updated and tidied up and full keyboard support is now present in the LCD
window.
Changes in v2:
- Add new patch to adjust #ifdef position in cros_ec
- Add new patch to sync with latest Chrome OS EC version
- Add new patches to bring in protocol v3 support
- Rebase to master
- Update series to take account of patches now merges from original series
Randall Spangler (2):
cros_ec: Clean up multiple EC protocol support
cros_ec: spi: Add support for EC protocol version 3
Simon Glass (27):
Use a const pointer for map_to_sysmem()
sandbox: Increase memory size to 32MB
sandbox: Build a device tree file for sandbox
sandbox: Use os functions to read host device tree
sandbox: dts: Add display and keyboard to sandbox
cros_ec: Add an enum for the number of flash regions
cros_ec: Add a function for reading a flash map entry
cros_ec: Add a function for decoding the Chrome OS EC flashmap
cros_ec: Support systems with no EC interrupt
cros_ec: Move #ifdef to permit flash region access
cros_ec: Sync up with latest Chrome OS EC version
cros_ec: Add base support for protocol v3
cros_ec: Correct comparison between signed and unsigned numbers
cros_ec: sandbox: Add Chrome OS EC emulation
sandbox: Plumb in Chrome OS EC emulation
cros_ec: Implement I2C pass-through
sandbox: Add os_jump_to_image() to run another executable
sandbox: Add -j option to indicate a jump from a previous U-Boot
sandbox: Add SDL library for LCD, keyboard, audio
sandbox: Add a simple sound driver
sandbox: Add LCD driver
sound: Move Samsung-specific code into its own file
sandbox: Deal with conflicting getenv() for SDL
sandbox: Allow Ctrl-C to work in sandbox
sandbox: Add options to clean up temporary files
sandbox: Add implementation of spi_setup_slave_fdt()
sandbox: config: Enable cros_ec emulation and related items
Vadim Bendebury (2):
cros_ec: Move EC interface into common library
cros_ec: Drop old EC version support from EC driver
Makefile | 3 +-
arch/sandbox/config.mk | 5 +
arch/sandbox/cpu/Makefile | 3 +
arch/sandbox/cpu/cpu.c | 2 +-
arch/sandbox/cpu/os.c | 108 ++++-
arch/sandbox/cpu/sdl.c | 341 ++++++++++++++
arch/sandbox/cpu/start.c | 60 +++
arch/sandbox/cpu/state.c | 6 +-
arch/sandbox/dts/Makefile | 11 +
arch/sandbox/dts/sandbox.dts | 125 ++++++
arch/sandbox/include/asm/arch-sandbox/sound.h | 14 +
arch/sandbox/include/asm/sdl.h | 118 +++++
arch/sandbox/include/asm/state.h | 29 +-
arch/sandbox/include/asm/u-boot-sandbox.h | 3 +
board/samsung/common/board.c | 29 +-
board/samsung/smdk5250/exynos5-dt.c | 1 -
board/sandbox/sandbox/sandbox.c | 49 ++-
common/Makefile | 1 +
common/board_f.c | 48 +-
common/cros_ec.c | 44 ++
common/lcd.c | 21 +-
disk/part.c | 17 -
doc/device-tree-bindings/video/sandbox-fb.txt | 13 +
drivers/input/cros_ec_keyb.c | 34 +-
drivers/misc/Makefile | 1 +
drivers/misc/cros_ec.c | 611 +++++++++++++++++++++++---
drivers/misc/cros_ec_i2c.c | 64 ++-
drivers/misc/cros_ec_lpc.c | 80 +---
drivers/misc/cros_ec_sandbox.c | 559 +++++++++++++++++++++++
drivers/misc/cros_ec_spi.c | 30 ++
drivers/serial/sandbox.c | 10 +-
drivers/sound/Makefile | 4 +-
drivers/sound/sandbox.c | 23 +
drivers/sound/sound-i2s.c | 208 +++++++++
drivers/sound/sound.c | 221 +---------
drivers/spi/sandbox_spi.c | 13 +
drivers/video/Makefile | 1 +
drivers/video/sandbox_sdl.c | 79 ++++
include/common.h | 6 +
include/configs/exynos5250-dt.h | 1 +
include/configs/sandbox.h | 41 +-
include/cros_ec.h | 94 +++-
include/cros_ec_message.h | 2 +-
include/ec_commands.h | 348 +++++++++++++--
include/fdtdec.h | 20 +
include/lcd.h | 3 +
include/os.h | 27 +-
include/sound.h | 9 +
lib/fdtdec.c | 26 ++
49 files changed, 3032 insertions(+), 534 deletions(-)
create mode 100644 arch/sandbox/cpu/sdl.c
create mode 100644 arch/sandbox/dts/Makefile
create mode 100644 arch/sandbox/dts/sandbox.dts
create mode 100644 arch/sandbox/include/asm/arch-sandbox/sound.h
create mode 100644 arch/sandbox/include/asm/sdl.h
create mode 100644 common/cros_ec.c
create mode 100644 doc/device-tree-bindings/video/sandbox-fb.txt
create mode 100644 drivers/misc/cros_ec_sandbox.c
create mode 100644 drivers/sound/sandbox.c
create mode 100644 drivers/sound/sound-i2s.c
create mode 100644 drivers/video/sandbox_sdl.c
--
1.9.0.279.gdc9e3eb
^ permalink raw reply [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 01/31] Use a const pointer for map_to_sysmem()
2014-02-27 20:25 ` [U-Boot] " Simon Glass
(?)
@ 2014-02-27 20:25 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:25 UTC (permalink / raw)
To: u-boot
This function does not actually change the pointer contents, so use const
so that functions which have a const pointer do not need to cast.
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
arch/sandbox/cpu/cpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/sandbox/cpu/cpu.c b/arch/sandbox/cpu/cpu.c
index 38019e0..3f4005b 100644
--- a/arch/sandbox/cpu/cpu.c
+++ b/arch/sandbox/cpu/cpu.c
@@ -58,7 +58,7 @@ void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
return (void *)(gd->arch.ram_buf + paddr);
}
-phys_addr_t map_to_sysmem(void *ptr)
+phys_addr_t map_to_sysmem(const void *ptr)
{
return (u8 *)ptr - gd->arch.ram_buf;
}
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 02/31] sandbox: Increase memory size to 32MB
2014-02-27 20:25 ` [U-Boot] " Simon Glass
(?)
(?)
@ 2014-02-27 20:25 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:25 UTC (permalink / raw)
To: u-boot
The current 4MB size is a little small for some tests, so increase it.
Reviewed-by: Hung-ying Tyan <tyanh@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
include/configs/sandbox.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h
index e77d06b..6fa2d03 100644
--- a/include/configs/sandbox.h
+++ b/include/configs/sandbox.h
@@ -57,7 +57,7 @@
/*
* Size of malloc() pool, although we don't actually use this yet.
*/
-#define CONFIG_SYS_MALLOC_LEN (4 << 20) /* 4MB */
+#define CONFIG_SYS_MALLOC_LEN (32 << 20) /* 32MB */
#define CONFIG_SYS_HUSH_PARSER
#define CONFIG_SYS_LONGHELP /* #undef to save memory */
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 03/31] sandbox: Build a device tree file for sandbox
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (2 preceding siblings ...)
(?)
@ 2014-02-27 20:25 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:25 UTC (permalink / raw)
To: u-boot
Add support for building a device tree for sandbox's CONFIG_OF_HOSTFILE
option to make it easier to use device tree with sandbox.
This adjusts the Makefile to build a u-boot.dtb file which can be passed
to sandbox U-Boot with:
./u-boot -d u-boot.dtb
Reviewed-by: Che-Liang Chiou <clchiou@chromium.org>
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
Makefile | 3 ++-
arch/sandbox/dts/Makefile | 11 +++++++++++
arch/sandbox/dts/sandbox.dts | 30 ++++++++++++++++++++++++++++++
include/configs/sandbox.h | 1 +
4 files changed, 44 insertions(+), 1 deletion(-)
create mode 100644 arch/sandbox/dts/Makefile
create mode 100644 arch/sandbox/dts/sandbox.dts
diff --git a/Makefile b/Makefile
index 0c0ff1d..17cd6ac 100644
--- a/Makefile
+++ b/Makefile
@@ -720,6 +720,7 @@ ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin
+ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
ifneq ($(CONFIG_SPL_TARGET),)
ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
endif
@@ -1371,7 +1372,7 @@ endif
$(build)=$(build-dir) $(@:.ko=.o)
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
-# FIXME Should go into a make.lib or something
+# FIXME Should go into a make.lib or something
# ===========================================================================
quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
diff --git a/arch/sandbox/dts/Makefile b/arch/sandbox/dts/Makefile
new file mode 100644
index 0000000..a4c980b
--- /dev/null
+++ b/arch/sandbox/dts/Makefile
@@ -0,0 +1,11 @@
+dtb-$(CONFIG_SANDBOX) += sandbox.dtb
+
+targets += $(dtb-y)
+
+DTC_FLAGS += -R 4 -p 0x1000
+
+PHONY += dtbs
+dtbs: $(addprefix $(obj)/, $(dtb-y))
+ @:
+
+clean-files := *.dtb
diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts
new file mode 100644
index 0000000..ea4b8ad
--- /dev/null
+++ b/arch/sandbox/dts/sandbox.dts
@@ -0,0 +1,30 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ model = "Sandbox test environment";
+
+ memory {
+ reg = <0 0x08000000>;
+ };
+
+ triangle {
+ compatible = "demo-shape";
+ colour = "cyan";
+ sides = <3>;
+ character = <83>;
+ };
+ square {
+ compatible = "demo-shape";
+ colour = "blue";
+ sides = <4>;
+ };
+ hexagon {
+ compatible = "demo-simple";
+ colour = "white";
+ sides = <6>;
+ };
+
+};
diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h
index 6fa2d03..e674233 100644
--- a/include/configs/sandbox.h
+++ b/include/configs/sandbox.h
@@ -32,6 +32,7 @@
#define CONFIG_FIT_SIGNATURE
#define CONFIG_RSA
#define CONFIG_CMD_FDT
+#define CONFIG_DEFAULT_DEVICE_TREE sandbox
#define CONFIG_FS_FAT
#define CONFIG_FS_EXT4
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 04/31] sandbox: Use os functions to read host device tree
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (3 preceding siblings ...)
(?)
@ 2014-02-27 20:25 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:25 UTC (permalink / raw)
To: u-boot
At present we use U-Boot's filesystem layer to read the sandbox device tree,
but this is problematic since it relies on a temporary feauture added
there. Since we plan to implement proper block layer support for sandbox,
change this code to use the os layer functions instead. Also use the new
fdt_create_empty_tree() instead of our own code.
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
common/board_f.c | 48 +++++++++++++++++++++---------------------------
disk/part.c | 17 -----------------
2 files changed, 21 insertions(+), 44 deletions(-)
diff --git a/common/board_f.c b/common/board_f.c
index 02965b0..d63c582 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -297,45 +297,39 @@ __weak int arch_cpu_init(void)
#ifdef CONFIG_OF_HOSTFILE
-#define CHECK(x) err = (x); if (err) goto failed;
-
-/* Create an empty device tree blob */
-static int make_empty_fdt(void *fdt)
-{
- int err;
-
- CHECK(fdt_create(fdt, 256));
- CHECK(fdt_finish_reservemap(fdt));
- CHECK(fdt_begin_node(fdt, ""));
- CHECK(fdt_end_node(fdt));
- CHECK(fdt_finish(fdt));
-
- return 0;
-failed:
- printf("Unable to create empty FDT: %s\n", fdt_strerror(err));
- return -EACCES;
-}
-
static int read_fdt_from_file(void)
{
struct sandbox_state *state = state_get_current();
+ const char *fname = state->fdt_fname;
void *blob;
- int size;
+ ssize_t size;
int err;
+ int fd;
blob = map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR, 0);
if (!state->fdt_fname) {
- err = make_empty_fdt(blob);
+ err = fdt_create_empty_tree(blob, 256);
if (!err)
goto done;
- return err;
+ printf("Unable to create empty FDT: %s\n", fdt_strerror(err));
+ return -EINVAL;
+ }
+
+ size = os_get_filesize(fname);
+ if (size < 0) {
+ printf("Failed to file FDT file '%s'\n", fname);
+ return -ENOENT;
+ }
+ fd = os_open(fname, OS_O_RDONLY);
+ if (fd < 0) {
+ printf("Failed to open FDT file '%s'\n", fname);
+ return -EACCES;
}
- err = fs_set_blk_dev("host", NULL, FS_TYPE_SANDBOX);
- if (err)
- return err;
- size = fs_read(state->fdt_fname, CONFIG_SYS_FDT_LOAD_ADDR, 0, 0);
- if (size < 0)
+ if (os_read(fd, blob, size) != size) {
+ os_close(fd);
return -EIO;
+ }
+ os_close(fd);
done:
gd->fdt_blob = blob;
diff --git a/disk/part.c b/disk/part.c
index 6941033..b8c6aac 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -452,23 +452,6 @@ int get_device_and_partition(const char *ifname, const char *dev_part_str,
int part;
disk_partition_t tmpinfo;
- /*
- * For now, we have a special case for sandbox, since there is no
- * real block device support.
- */
- if (0 == strcmp(ifname, "host")) {
- *dev_desc = NULL;
- info->start = info->size = info->blksz = 0;
- info->bootable = 0;
- strcpy((char *)info->type, BOOT_PART_TYPE);
- strcpy((char *)info->name, "Sandbox host");
-#ifdef CONFIG_PARTITION_UUIDS
- info->uuid[0] = 0;
-#endif
-
- return 0;
- }
-
/* If no dev_part_str, use bootdevice environment variable */
if (!dev_part_str || !strlen(dev_part_str) ||
!strcmp(dev_part_str, "-"))
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH v2 05/31] sandbox: dts: Add display and keyboard to sandbox
2014-02-27 20:25 ` [U-Boot] " Simon Glass
@ 2014-02-27 20:25 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:25 UTC (permalink / raw)
To: U-Boot Mailing List
Cc: u-boot-review-hpIqsD4AKlfQT0dZR+AlfA, Simon Glass, Devicetree Discuss
Add an LCD display and keyboard to the sandbox device tree so that these
features can be used.
Signed-off-by: Simon Glass <sjg-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
---
Changes in v2: None
arch/sandbox/dts/sandbox.dts | 95 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 95 insertions(+)
diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts
index ea4b8ad..11afbc2 100644
--- a/arch/sandbox/dts/sandbox.dts
+++ b/arch/sandbox/dts/sandbox.dts
@@ -27,4 +27,99 @@
sides = <6>;
};
+ host@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "sandbox,host-emulation";
+ cros-ec@0 {
+ reg = <0>;
+ compatible = "google,cros-ec";
+
+ /*
+ * This describes the flash memory within the EC. Note
+ * that the STM32L flash erases to 0, not 0xff.
+ */
+ #address-cells = <1>;
+ #size-cells = <1>;
+ flash@8000000 {
+ reg = <0x08000000 0x20000>;
+ erase-value = <0>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ /* Information for sandbox */
+ ro {
+ reg = <0 0xf000>;
+ };
+ wp-ro {
+ reg = <0xf000 0x1000>;
+ };
+ rw {
+ reg = <0x10000 0x10000>;
+ };
+ };
+ };
+ };
+
+ lcd {
+ compatible = "sandbox,lcd-sdl";
+ xres = <800>;
+ yres = <600>;
+ };
+
+ cros-ec-keyb {
+ compatible = "google,cros-ec-keyb";
+ google,key-rows = <8>;
+ google,key-columns = <13>;
+ google,repeat-delay-ms = <240>;
+ google,repeat-rate-ms = <30>;
+ google,ghost-filter;
+ /*
+ * Keymap entries take the form of 0xRRCCKKKK where
+ * RR=Row CC=Column KKKK=Key Code
+ * The values below are for a US keyboard layout and
+ * are taken from the Linux driver. Note that the
+ * 102ND key is not used for US keyboards.
+ */
+ linux,keymap = <
+ /* CAPSLCK F1 B F10 */
+ 0x0001003a 0x0002003b 0x00030030 0x00040044
+ /* N = R_ALT ESC */
+ 0x00060031 0x0008000d 0x000a0064 0x01010001
+ /* F4 G F7 H */
+ 0x0102003e 0x01030022 0x01040041 0x01060023
+ /* ' F9 BKSPACE L_CTRL */
+ 0x01080028 0x01090043 0x010b000e 0x0200001d
+ /* TAB F3 T F6 */
+ 0x0201000f 0x0202003d 0x02030014 0x02040040
+ /* ] Y 102ND [ */
+ 0x0205001b 0x02060015 0x02070056 0x0208001a
+ /* F8 GRAVE F2 5 */
+ 0x02090042 0x03010029 0x0302003c 0x03030006
+ /* F5 6 - \ */
+ 0x0304003f 0x03060007 0x0308000c 0x030b002b
+ /* R_CTRL A D F */
+ 0x04000061 0x0401001e 0x04020020 0x04030021
+ /* S K J ; */
+ 0x0404001f 0x04050025 0x04060024 0x04080027
+ /* L ENTER Z C */
+ 0x04090026 0x040b001c 0x0501002c 0x0502002e
+ /* V X , M */
+ 0x0503002f 0x0504002d 0x05050033 0x05060032
+ /* L_SHIFT / . SPACE */
+ 0x0507002a 0x05080035 0x05090034 0x050B0039
+ /* 1 3 4 2 */
+ 0x06010002 0x06020004 0x06030005 0x06040003
+ /* 8 7 0 9 */
+ 0x06050009 0x06060008 0x0608000b 0x0609000a
+ /* L_ALT DOWN RIGHT Q */
+ 0x060a0038 0x060b006c 0x060c006a 0x07010010
+ /* E R W I */
+ 0x07020012 0x07030013 0x07040011 0x07050017
+ /* U R_SHIFT P O */
+ 0x07060016 0x07070036 0x07080019 0x07090018
+ /* UP LEFT */
+ 0x070b0067 0x070c0069>;
+ };
+
};
--
1.9.0.279.gdc9e3eb
--
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^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 05/31] sandbox: dts: Add display and keyboard to sandbox
@ 2014-02-27 20:25 ` Simon Glass
0 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:25 UTC (permalink / raw)
To: u-boot
Add an LCD display and keyboard to the sandbox device tree so that these
features can be used.
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
arch/sandbox/dts/sandbox.dts | 95 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 95 insertions(+)
diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts
index ea4b8ad..11afbc2 100644
--- a/arch/sandbox/dts/sandbox.dts
+++ b/arch/sandbox/dts/sandbox.dts
@@ -27,4 +27,99 @@
sides = <6>;
};
+ host at 0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "sandbox,host-emulation";
+ cros-ec at 0 {
+ reg = <0>;
+ compatible = "google,cros-ec";
+
+ /*
+ * This describes the flash memory within the EC. Note
+ * that the STM32L flash erases to 0, not 0xff.
+ */
+ #address-cells = <1>;
+ #size-cells = <1>;
+ flash at 8000000 {
+ reg = <0x08000000 0x20000>;
+ erase-value = <0>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ /* Information for sandbox */
+ ro {
+ reg = <0 0xf000>;
+ };
+ wp-ro {
+ reg = <0xf000 0x1000>;
+ };
+ rw {
+ reg = <0x10000 0x10000>;
+ };
+ };
+ };
+ };
+
+ lcd {
+ compatible = "sandbox,lcd-sdl";
+ xres = <800>;
+ yres = <600>;
+ };
+
+ cros-ec-keyb {
+ compatible = "google,cros-ec-keyb";
+ google,key-rows = <8>;
+ google,key-columns = <13>;
+ google,repeat-delay-ms = <240>;
+ google,repeat-rate-ms = <30>;
+ google,ghost-filter;
+ /*
+ * Keymap entries take the form of 0xRRCCKKKK where
+ * RR=Row CC=Column KKKK=Key Code
+ * The values below are for a US keyboard layout and
+ * are taken from the Linux driver. Note that the
+ * 102ND key is not used for US keyboards.
+ */
+ linux,keymap = <
+ /* CAPSLCK F1 B F10 */
+ 0x0001003a 0x0002003b 0x00030030 0x00040044
+ /* N = R_ALT ESC */
+ 0x00060031 0x0008000d 0x000a0064 0x01010001
+ /* F4 G F7 H */
+ 0x0102003e 0x01030022 0x01040041 0x01060023
+ /* ' F9 BKSPACE L_CTRL */
+ 0x01080028 0x01090043 0x010b000e 0x0200001d
+ /* TAB F3 T F6 */
+ 0x0201000f 0x0202003d 0x02030014 0x02040040
+ /* ] Y 102ND [ */
+ 0x0205001b 0x02060015 0x02070056 0x0208001a
+ /* F8 GRAVE F2 5 */
+ 0x02090042 0x03010029 0x0302003c 0x03030006
+ /* F5 6 - \ */
+ 0x0304003f 0x03060007 0x0308000c 0x030b002b
+ /* R_CTRL A D F */
+ 0x04000061 0x0401001e 0x04020020 0x04030021
+ /* S K J ; */
+ 0x0404001f 0x04050025 0x04060024 0x04080027
+ /* L ENTER Z C */
+ 0x04090026 0x040b001c 0x0501002c 0x0502002e
+ /* V X , M */
+ 0x0503002f 0x0504002d 0x05050033 0x05060032
+ /* L_SHIFT / . SPACE */
+ 0x0507002a 0x05080035 0x05090034 0x050B0039
+ /* 1 3 4 2 */
+ 0x06010002 0x06020004 0x06030005 0x06040003
+ /* 8 7 0 9 */
+ 0x06050009 0x06060008 0x0608000b 0x0609000a
+ /* L_ALT DOWN RIGHT Q */
+ 0x060a0038 0x060b006c 0x060c006a 0x07010010
+ /* E R W I */
+ 0x07020012 0x07030013 0x07040011 0x07050017
+ /* U R_SHIFT P O */
+ 0x07060016 0x07070036 0x07080019 0x07090018
+ /* UP LEFT */
+ 0x070b0067 0x070c0069>;
+ };
+
};
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 06/31] cros_ec: Add an enum for the number of flash regions
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (5 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
Add an enum for the number of flash regions so we can keep track of all
the possible regions.
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
include/ec_commands.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/ec_commands.h b/include/ec_commands.h
index 12811cc..d9c8c1f 100644
--- a/include/ec_commands.h
+++ b/include/ec_commands.h
@@ -536,7 +536,7 @@ struct ec_response_flash_protect {
enum ec_flash_region {
/* Region which holds read-only EC image */
- EC_FLASH_REGION_RO,
+ EC_FLASH_REGION_RO = 0,
/* Region which holds rewritable EC image */
EC_FLASH_REGION_RW,
/*
@@ -544,6 +544,8 @@ enum ec_flash_region {
* EC_FLASH_REGION_RO)
*/
EC_FLASH_REGION_WP_RO,
+ /* Number of regions */
+ EC_FLASH_REGION_COUNT,
};
struct ec_params_flash_region_info {
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 07/31] cros_ec: Add a function for reading a flash map entry
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (6 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
A flash map describes the layout of flash memory in terms of offsets and
sizes for each region. Add a function to read a flash map entry from the
device tree.
Reviewed-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
include/fdtdec.h | 18 ++++++++++++++++++
lib/fdtdec.c | 24 ++++++++++++++++++++++++
2 files changed, 42 insertions(+)
diff --git a/include/fdtdec.h b/include/fdtdec.h
index 19bab79..aa695df 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -530,4 +530,22 @@ const u8 *fdtdec_locate_byte_array(const void *blob, int node,
*/
int fdtdec_decode_region(const void *blob, int node,
const char *prop_name, void **ptrp, size_t *size);
+
+/* A flash map entry, containing an offset and length */
+struct fmap_entry {
+ uint32_t offset;
+ uint32_t length;
+};
+
+/**
+ * Read a flash entry from the fdt
+ *
+ * @param blob FDT blob
+ * @param node Offset of node to read
+ * @param name Name of node being read
+ * @param entry Place to put offset and size of this node
+ * @return 0 if ok, -ve on error
+ */
+int fdtdec_read_fmap_entry(const void *blob, int node, const char *name,
+ struct fmap_entry *entry);
#endif
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 1fecab3..c54d97b 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -617,3 +617,27 @@ int fdtdec_decode_region(const void *blob, int node,
debug("%s: size=%zx\n", __func__, *size);
return 0;
}
+
+/**
+ * Read a flash entry from the fdt
+ *
+ * @param blob FDT blob
+ * @param node Offset of node to read
+ * @param name Name of node being read
+ * @param entry Place to put offset and size of this node
+ * @return 0 if ok, -ve on error
+ */
+int fdtdec_read_fmap_entry(const void *blob, int node, const char *name,
+ struct fmap_entry *entry)
+{
+ u32 reg[2];
+
+ if (fdtdec_get_int_array(blob, node, "reg", reg, 2)) {
+ debug("Node '%s' has bad/missing 'reg' property\n", name);
+ return -FDT_ERR_NOTFOUND;
+ }
+ entry->offset = reg[0];
+ entry->length = reg[1];
+
+ return 0;
+}
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 08/31] cros_ec: Move EC interface into common library
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (7 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
From: Vadim Bendebury <vbendeb@chromium.org>
Add a common library for obtaining access to the Chrome OS EC. This is
used by boards which need to talk to the EC.
Reviewed-by: Vadim Bendebury <vbendeb@google.com>
Tested-by: Vadim Bendebury <vbendeb@google.com>
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
board/samsung/common/board.c | 29 +++---------------------
board/samsung/smdk5250/exynos5-dt.c | 1 -
common/Makefile | 1 +
common/cros_ec.c | 44 +++++++++++++++++++++++++++++++++++++
include/cros_ec.h | 18 +++++++++++++++
5 files changed, 66 insertions(+), 27 deletions(-)
create mode 100644 common/cros_ec.c
diff --git a/board/samsung/common/board.c b/board/samsung/common/board.c
index cd873bc..3866495 100644
--- a/board/samsung/common/board.c
+++ b/board/samsung/common/board.c
@@ -26,13 +26,6 @@
DECLARE_GLOBAL_DATA_PTR;
-struct local_info {
- struct cros_ec_dev *cros_ec_dev; /* Pointer to cros_ec device */
- int cros_ec_err; /* Error for cros_ec, 0 if ok */
-};
-
-static struct local_info local;
-
#if defined CONFIG_EXYNOS_TMU
/* Boot Time Thermal Analysis for SoC temperature threshold breach */
static void boot_temp_check(void)
@@ -144,22 +137,6 @@ int board_early_init_f(void)
}
#endif
-struct cros_ec_dev *board_get_cros_ec_dev(void)
-{
- return local.cros_ec_dev;
-}
-
-#ifdef CONFIG_CROS_EC
-static int board_init_cros_ec_devices(const void *blob)
-{
- local.cros_ec_err = cros_ec_init(blob, &local.cros_ec_dev);
- if (local.cros_ec_err)
- return -1; /* Will report in board_late_init() */
-
- return 0;
-}
-#endif
-
#if defined(CONFIG_POWER)
#ifdef CONFIG_POWER_MAX77686
static int pmic_reg_update(struct pmic *p, int reg, uint regval)
@@ -384,12 +361,12 @@ int board_late_init(void)
{
stdio_print_current_devices();
- if (local.cros_ec_err) {
+ if (cros_ec_get_error()) {
/* Force console on */
gd->flags &= ~GD_FLG_SILENT;
printf("cros-ec communications failure %d\n",
- local.cros_ec_err);
+ cros_ec_get_error());
puts("\nPlease reset with Power+Refresh\n\n");
panic("Cannot init cros-ec device");
return -1;
@@ -401,7 +378,7 @@ int board_late_init(void)
int arch_early_init_r(void)
{
#ifdef CONFIG_CROS_EC
- if (board_init_cros_ec_devices(gd->fdt_blob)) {
+ if (cros_ec_board_init()) {
printf("%s: Failed to init EC\n", __func__);
return 0;
}
diff --git a/board/samsung/smdk5250/exynos5-dt.c b/board/samsung/smdk5250/exynos5-dt.c
index 5fb8664..c83b034 100644
--- a/board/samsung/smdk5250/exynos5-dt.c
+++ b/board/samsung/smdk5250/exynos5-dt.c
@@ -5,7 +5,6 @@
*/
#include <common.h>
-#include <cros_ec.h>
#include <fdtdec.h>
#include <asm/io.h>
#include <errno.h>
diff --git a/common/Makefile b/common/Makefile
index 6652ad4..b8dee73 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -229,6 +229,7 @@ obj-$(SPD) += ddr_spd.o
obj-$(CONFIG_HWCONFIG) += hwconfig.o
obj-$(CONFIG_BOUNCE_BUFFER) += bouncebuf.o
obj-y += console.o
+obj-$(CONFIG_CROS_EC) += cros_ec.o
obj-y += dlmalloc.o
obj-y += image.o
obj-$(CONFIG_OF_LIBFDT) += image-fdt.o
diff --git a/common/cros_ec.c b/common/cros_ec.c
new file mode 100644
index 0000000..b8ce1b5
--- /dev/null
+++ b/common/cros_ec.c
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ */
+
+#include <common.h>
+#include <cros_ec.h>
+DECLARE_GLOBAL_DATA_PTR;
+
+struct local_info {
+ struct cros_ec_dev *cros_ec_dev; /* Pointer to cros_ec device */
+ int cros_ec_err; /* Error for cros_ec, 0 if ok */
+};
+
+static struct local_info local;
+
+struct cros_ec_dev *board_get_cros_ec_dev(void)
+{
+ return local.cros_ec_dev;
+}
+
+static int board_init_cros_ec_devices(const void *blob)
+{
+ local.cros_ec_err = cros_ec_init(blob, &local.cros_ec_dev);
+ if (local.cros_ec_err)
+ return -1; /* Will report in board_late_init() */
+
+ return 0;
+}
+
+int cros_ec_board_init(void)
+{
+ return board_init_cros_ec_devices(gd->fdt_blob);
+}
+
+int cros_ec_get_error(void)
+{
+ return local.cros_ec_err;
+}
diff --git a/include/cros_ec.h b/include/cros_ec.h
index 1e89f29..22eae90 100644
--- a/include/cros_ec.h
+++ b/include/cros_ec.h
@@ -431,4 +431,22 @@ int cros_ec_set_ldo(struct cros_ec_dev *dev, uint8_t index, uint8_t state);
* @return 0 if ok, -1 on error
*/
int cros_ec_get_ldo(struct cros_ec_dev *dev, uint8_t index, uint8_t *state);
+
+/**
+ * Initialize the Chrome OS EC at board initialization time.
+ *
+ * @return 0 if ok, -ve on error
+ */
+int cros_ec_board_init(void);
+
+/**
+ * Get access to the error reported when cros_ec_board_init() was called
+ *
+ * This permits delayed reporting of the EC error if it failed during
+ * early init.
+ *
+ * @return error (0 if there was no error, -ve if there was an error)
+ */
+int cros_ec_get_error(void);
+
#endif
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 09/31] cros_ec: Add a function for decoding the Chrome OS EC flashmap
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (8 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
In order to talk to the EC properly we need to be able to understand the
layout of its internal flash memory. This permits emulation of the EC
for sandbox, and also software update in a system with a real EC.
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
drivers/misc/cros_ec.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
include/cros_ec.h | 19 +++++++++++++++++++
2 files changed, 69 insertions(+)
diff --git a/drivers/misc/cros_ec.c b/drivers/misc/cros_ec.c
index 301e8eb..1998653 100644
--- a/drivers/misc/cros_ec.c
+++ b/drivers/misc/cros_ec.c
@@ -958,6 +958,56 @@ int cros_ec_decode_region(int argc, char * const argv[])
return -1;
}
+int cros_ec_decode_ec_flash(const void *blob, struct fdt_cros_ec *config)
+{
+ int flash_node, node;
+
+ node = fdtdec_next_compatible(blob, 0, COMPAT_GOOGLE_CROS_EC);
+ if (node < 0) {
+ debug("Failed to find chrome-ec node'\n");
+ return -1;
+ }
+
+ flash_node = fdt_subnode_offset(blob, node, "flash");
+ if (flash_node < 0) {
+ debug("Failed to find flash node\n");
+ return -1;
+ }
+
+ if (fdtdec_read_fmap_entry(blob, flash_node, "flash",
+ &config->flash)) {
+ debug("Failed to decode flash node in chrome-ec'\n");
+ return -1;
+ }
+
+ config->flash_erase_value = fdtdec_get_int(blob, flash_node,
+ "erase-value", -1);
+ for (node = fdt_first_subnode(blob, flash_node); node >= 0;
+ node = fdt_next_subnode(blob, node)) {
+ const char *name = fdt_get_name(blob, node, NULL);
+ enum ec_flash_region region;
+
+ if (0 == strcmp(name, "ro")) {
+ region = EC_FLASH_REGION_RO;
+ } else if (0 == strcmp(name, "rw")) {
+ region = EC_FLASH_REGION_RW;
+ } else if (0 == strcmp(name, "wp-ro")) {
+ region = EC_FLASH_REGION_WP_RO;
+ } else {
+ debug("Unknown EC flash region name '%s'\n", name);
+ return -1;
+ }
+
+ if (fdtdec_read_fmap_entry(blob, node, "reg",
+ &config->region[region])) {
+ debug("Failed to decode flash region in chrome-ec'\n");
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
/**
* Perform a flash read or write command
*
diff --git a/include/cros_ec.h b/include/cros_ec.h
index 22eae90..999c3c9 100644
--- a/include/cros_ec.h
+++ b/include/cros_ec.h
@@ -63,6 +63,17 @@ struct mbkp_keyscan {
uint8_t data[CROS_EC_KEYSCAN_COLS];
};
+/* Holds information about the Chrome EC */
+struct fdt_cros_ec {
+ struct fmap_entry flash; /* Address and size of EC flash */
+ /*
+ * Byte value of erased flash, or -1 if not known. It is normally
+ * 0xff but some flash devices use 0 (e.g. STM32Lxxx)
+ */
+ int flash_erase_value;
+ struct fmap_entry region[EC_FLASH_REGION_COUNT];
+};
+
/**
* Read the ID of the CROS-EC device
*
@@ -449,4 +460,12 @@ int cros_ec_board_init(void);
*/
int cros_ec_get_error(void);
+/**
+ * Returns information from the FDT about the Chrome EC flash
+ *
+ * @param blob FDT blob to use
+ * @param config Structure to use to return information
+ */
+int cros_ec_decode_ec_flash(const void *blob, struct fdt_cros_ec *config);
+
#endif
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 10/31] cros_ec: Drop old EC version support from EC driver
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (9 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
From: Vadim Bendebury <vbendeb@chromium.org>
There is no need to support old style EC moving forward. Ultimately we
should get rid of the check_version() API. For now just return error
in case the EC does not seem to support the new API.
Reviewed-by: Vadim Bendebury <vbendeb@google.com>
Tested-by: Vadim Bendebury <vbendeb@google.com>
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
drivers/misc/cros_ec.c | 15 ++-------
drivers/misc/cros_ec_lpc.c | 80 ++--------------------------------------------
2 files changed, 6 insertions(+), 89 deletions(-)
diff --git a/drivers/misc/cros_ec.c b/drivers/misc/cros_ec.c
index 1998653..f95bfe7 100644
--- a/drivers/misc/cros_ec.c
+++ b/drivers/misc/cros_ec.c
@@ -132,10 +132,6 @@ static int ec_command_inptr(struct cros_ec_dev *dev, uint8_t cmd,
uint8_t *din;
int len;
- if (cmd_version != 0 && !dev->cmd_version_is_supported) {
- debug("%s: Command version >0 unsupported\n", __func__);
- return -1;
- }
len = send_command(dev, cmd, cmd_version, dout, dout_len,
&din, din_len);
@@ -510,14 +506,9 @@ static int cros_ec_check_version(struct cros_ec_dev *dev)
/* It appears to understand new version commands */
dev->cmd_version_is_supported = 1;
} else {
- dev->cmd_version_is_supported = 0;
- if (ec_command_inptr(dev, EC_CMD_HELLO, 0, &req,
- sizeof(req), (uint8_t **)&resp,
- sizeof(*resp)) < 0) {
- debug("%s: Failed both old and new command style\n",
- __func__);
- return -1;
- }
+ printf("%s: ERROR: old EC interface not supported\n",
+ __func__);
+ return -1;
}
return 0;
diff --git a/drivers/misc/cros_ec_lpc.c b/drivers/misc/cros_ec_lpc.c
index 7257476..0e02671 100644
--- a/drivers/misc/cros_ec_lpc.c
+++ b/drivers/misc/cros_ec_lpc.c
@@ -40,71 +40,6 @@ static int wait_for_sync(struct cros_ec_dev *dev)
return 0;
}
-/**
- * Send a command to a LPC CROS_EC device and return the reply.
- *
- * The device's internal input/output buffers are used.
- *
- * @param dev CROS_EC device
- * @param cmd Command to send (EC_CMD_...)
- * @param cmd_version Version of command to send (EC_VER_...)
- * @param dout Output data (may be NULL If dout_len=0)
- * @param dout_len Size of output data in bytes
- * @param dinp Place to put pointer to response data
- * @param din_len Maximum size of response in bytes
- * @return number of bytes in response, or -1 on error
- */
-static int old_lpc_command(struct cros_ec_dev *dev, uint8_t cmd,
- const uint8_t *dout, int dout_len,
- uint8_t **dinp, int din_len)
-{
- int ret, i;
-
- if (dout_len > EC_OLD_PARAM_SIZE) {
- debug("%s: Cannot send %d bytes\n", __func__, dout_len);
- return -1;
- }
-
- if (din_len > EC_OLD_PARAM_SIZE) {
- debug("%s: Cannot receive %d bytes\n", __func__, din_len);
- return -1;
- }
-
- if (wait_for_sync(dev)) {
- debug("%s: Timeout waiting ready\n", __func__);
- return -1;
- }
-
- debug_trace("cmd: %02x, ", cmd);
- for (i = 0; i < dout_len; i++) {
- debug_trace("%02x ", dout[i]);
- outb(dout[i], EC_LPC_ADDR_OLD_PARAM + i);
- }
- outb(cmd, EC_LPC_ADDR_HOST_CMD);
- debug_trace("\n");
-
- if (wait_for_sync(dev)) {
- debug("%s: Timeout waiting ready\n", __func__);
- return -1;
- }
-
- ret = inb(EC_LPC_ADDR_HOST_DATA);
- if (ret) {
- debug("%s: CROS_EC result code %d\n", __func__, ret);
- return -ret;
- }
-
- debug_trace("resp: %02x, ", ret);
- for (i = 0; i < din_len; i++) {
- dev->din[i] = inb(EC_LPC_ADDR_OLD_PARAM + i);
- debug_trace("%02x ", dev->din[i]);
- }
- debug_trace("\n");
- *dinp = dev->din;
-
- return din_len;
-}
-
int cros_ec_lpc_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
const uint8_t *dout, int dout_len,
uint8_t **dinp, int din_len)
@@ -119,11 +54,6 @@ int cros_ec_lpc_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
int csum;
int i;
- /* Fall back to old-style command interface if args aren't supported */
- if (!dev->cmd_version_is_supported)
- return old_lpc_command(dev, cmd, dout, dout_len, dinp,
- din_len);
-
if (dout_len > EC_HOST_PARAM_SIZE) {
debug("%s: Cannot send %d bytes\n", __func__, dout_len);
return -1;
@@ -256,13 +186,9 @@ int cros_ec_lpc_check_version(struct cros_ec_dev *dev)
(inb(EC_LPC_ADDR_MEMMAP +
EC_MEMMAP_HOST_CMD_FLAGS) &
EC_HOST_CMD_FLAG_LPC_ARGS_SUPPORTED)) {
- dev->cmd_version_is_supported = 1;
- } else {
- /* We are going to use the old IO ports */
- dev->cmd_version_is_supported = 0;
+ return 0;
}
- debug("lpc: version %s\n", dev->cmd_version_is_supported ?
- "new" : "old");
- return 0;
+ printf("%s: ERROR: old EC interface not supported\n", __func__);
+ return -1;
}
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 11/31] cros_ec: Support systems with no EC interrupt
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (10 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
Some systems do not have an EC interrupt. Rather than assuming that the
interrupt is always present, and hanging forever waiting for more input,
handle the missing interrupt. This works by reading key scans only until
we get an identical one. This means the EC keyscan FIFO is empty.
Tested-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
drivers/input/cros_ec_keyb.c | 34 ++++++++++++++++++++++++++++++----
1 file changed, 30 insertions(+), 4 deletions(-)
diff --git a/drivers/input/cros_ec_keyb.c b/drivers/input/cros_ec_keyb.c
index e8dac23..a2501e0 100644
--- a/drivers/input/cros_ec_keyb.c
+++ b/drivers/input/cros_ec_keyb.c
@@ -8,6 +8,7 @@
#include <common.h>
#include <cros_ec.h>
+#include <errno.h>
#include <fdtdec.h>
#include <input.h>
#include <key_matrix.h>
@@ -39,20 +40,34 @@ static struct keyb {
* @param config Keyboard config
* @param keys List of keys that we have detected
* @param max_count Maximum number of keys to return
- * @return number of pressed keys, 0 for none
+ * @param samep Set to true if this scan repeats the last, else false
+ * @return number of pressed keys, 0 for none, -EIO on error
*/
static int check_for_keys(struct keyb *config,
- struct key_matrix_key *keys, int max_count)
+ struct key_matrix_key *keys, int max_count,
+ bool *samep)
{
struct key_matrix_key *key;
+ static struct mbkp_keyscan last_scan;
+ static bool last_scan_valid;
struct mbkp_keyscan scan;
unsigned int row, col, bit, data;
int num_keys;
if (cros_ec_scan_keyboard(config->dev, &scan)) {
debug("%s: keyboard scan failed\n", __func__);
- return -1;
+ return -EIO;
}
+ *samep = last_scan_valid && !memcmp(&last_scan, &scan, sizeof(scan));
+
+ /*
+ * This is a bit odd. The EC has no way to tell us that it has run
+ * out of key scans. It just returns the same scan over and over
+ * again. So the only way to detect that we have run out is to detect
+ * that this scan is the same as the last.
+ */
+ last_scan_valid = true;
+ memcpy(&last_scan, &scan, sizeof(last_scan));
for (col = num_keys = bit = 0; col < config->matrix.num_cols;
col++) {
@@ -112,6 +127,7 @@ int cros_ec_kbc_check(struct input_config *input)
int keycodes[KBC_MAX_KEYS];
int num_keys, num_keycodes;
int irq_pending, sent;
+ bool same = false;
/*
* Loop until the EC has no more keyscan records, or we have
@@ -125,7 +141,10 @@ int cros_ec_kbc_check(struct input_config *input)
do {
irq_pending = cros_ec_interrupt_pending(config.dev);
if (irq_pending) {
- num_keys = check_for_keys(&config, keys, KBC_MAX_KEYS);
+ num_keys = check_for_keys(&config, keys, KBC_MAX_KEYS,
+ &same);
+ if (num_keys < 0)
+ return 0;
last_num_keys = num_keys;
memcpy(last_keys, keys, sizeof(keys));
} else {
@@ -142,6 +161,13 @@ int cros_ec_kbc_check(struct input_config *input)
num_keycodes = key_matrix_decode(&config.matrix, keys,
num_keys, keycodes, KBC_MAX_KEYS);
sent = input_send_keycodes(input, keycodes, num_keycodes);
+
+ /*
+ * For those ECs without an interrupt, stop scanning when we
+ * see that the scan is the same as last time.
+ */
+ if ((irq_pending < 0) && same)
+ break;
} while (irq_pending && !sent);
return 1;
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 12/31] cros_ec: Move #ifdef to permit flash region access
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (11 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
Flash region access is not tied to having commands, so adjust the #ifdef
to reflect this.
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2:
- Add new patch to adjust #ifdef position in cros_ec
drivers/misc/cros_ec.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/misc/cros_ec.c b/drivers/misc/cros_ec.c
index f95bfe7..1cb879c 100644
--- a/drivers/misc/cros_ec.c
+++ b/drivers/misc/cros_ec.c
@@ -932,7 +932,6 @@ int cros_ec_init(const void *blob, struct cros_ec_dev **cros_ecp)
return 0;
}
-#ifdef CONFIG_CMD_CROS_EC
int cros_ec_decode_region(int argc, char * const argv[])
{
if (argc > 0) {
@@ -999,6 +998,8 @@ int cros_ec_decode_ec_flash(const void *blob, struct fdt_cros_ec *config)
return 0;
}
+#ifdef CONFIG_CMD_CROS_EC
+
/**
* Perform a flash read or write command
*
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 13/31] cros_ec: Sync up with latest Chrome OS EC version
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (12 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
The EC messages have been expanded and some parts have been renamed.
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2:
- Add new patch to sync with latest Chrome OS EC version
drivers/misc/cros_ec.c | 33 ++---
include/cros_ec.h | 4 +-
include/cros_ec_message.h | 2 +-
include/ec_commands.h | 344 ++++++++++++++++++++++++++++++++++++++++------
4 files changed, 321 insertions(+), 62 deletions(-)
diff --git a/drivers/misc/cros_ec.c b/drivers/misc/cros_ec.c
index 1cb879c..ff46762 100644
--- a/drivers/misc/cros_ec.c
+++ b/drivers/misc/cros_ec.c
@@ -7,10 +7,11 @@
*/
/*
- * The Matrix Keyboard Protocol driver handles talking to the keyboard
- * controller chip. Mostly this is for keyboard functions, but some other
- * things have slipped in, so we provide generic services to talk to the
- * KBC.
+ * This is the interface to the Chrome OS EC. It provides keyboard functions,
+ * power control and battery management. Quite a few other functions are
+ * provided to enable the EC software to be updated, talk to the EC's I2C bus
+ * and store a small amount of data in a memory which persists while the EC
+ * is not reset.
*/
#include <common.h>
@@ -216,7 +217,7 @@ static int ec_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
int cros_ec_scan_keyboard(struct cros_ec_dev *dev, struct mbkp_keyscan *scan)
{
- if (ec_command(dev, EC_CMD_CROS_EC_STATE, 0, NULL, 0, scan,
+ if (ec_command(dev, EC_CMD_MKBP_STATE, 0, NULL, 0, scan,
sizeof(scan->data)) < sizeof(scan->data))
return -1;
@@ -263,7 +264,7 @@ int cros_ec_read_version(struct cros_ec_dev *dev,
int cros_ec_read_build_info(struct cros_ec_dev *dev, char **strp)
{
if (ec_command_inptr(dev, EC_CMD_GET_BUILD_INFO, 0, NULL, 0,
- (uint8_t **)strp, EC_HOST_PARAM_SIZE) < 0)
+ (uint8_t **)strp, EC_PROTO2_MAX_PARAM_SIZE) < 0)
return -1;
return 0;
@@ -332,7 +333,7 @@ int cros_ec_read_hash(struct cros_ec_dev *dev,
debug("%s: No valid hash (status=%d size=%d). Compute one...\n",
__func__, hash->status, hash->size);
- p.cmd = EC_VBOOT_HASH_RECALC;
+ p.cmd = EC_VBOOT_HASH_START;
p.hash_type = EC_VBOOT_HASH_TYPE_SHA256;
p.nonce_size = 0;
p.offset = EC_VBOOT_HASH_OFFSET_RW;
@@ -414,10 +415,10 @@ int cros_ec_interrupt_pending(struct cros_ec_dev *dev)
return !gpio_get_value(dev->ec_int.gpio);
}
-int cros_ec_info(struct cros_ec_dev *dev, struct ec_response_cros_ec_info *info)
+int cros_ec_info(struct cros_ec_dev *dev, struct ec_response_mkbp_info *info)
{
- if (ec_command(dev, EC_CMD_CROS_EC_INFO, 0, NULL, 0, info,
- sizeof(*info)) < sizeof(*info))
+ if (ec_command(dev, EC_CMD_MKBP_INFO, 0, NULL, 0, info,
+ sizeof(*info)) < sizeof(*info))
return -1;
return 0;
@@ -590,8 +591,8 @@ static int cros_ec_flash_write_block(struct cros_ec_dev *dev,
p.offset = offset;
p.size = size;
- assert(data && p.size <= sizeof(p.data));
- memcpy(p.data, data, p.size);
+ assert(data && p.size <= EC_FLASH_WRITE_VER0_SIZE);
+ memcpy(&p + 1, data, p.size);
return ec_command_inptr(dev, EC_CMD_FLASH_WRITE, 0,
&p, sizeof(p), NULL, 0) >= 0 ? 0 : -1;
@@ -602,8 +603,7 @@ static int cros_ec_flash_write_block(struct cros_ec_dev *dev,
*/
static int cros_ec_flash_write_burst_size(struct cros_ec_dev *dev)
{
- struct ec_params_flash_write p;
- return sizeof(p.data);
+ return EC_FLASH_WRITE_VER0_SIZE;
}
/**
@@ -804,7 +804,8 @@ int cros_ec_get_ldo(struct cros_ec_dev *dev, uint8_t index, uint8_t *state)
}
/**
- * Decode MBKP details from the device tree and allocate a suitable device.
+ * Decode EC interface details from the device tree and allocate a suitable
+ * device.
*
* @param blob Device tree blob
* @param node Node to decode from
@@ -1086,7 +1087,7 @@ static int do_cros_ec(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
}
printf("%s\n", id);
} else if (0 == strcmp("info", cmd)) {
- struct ec_response_cros_ec_info info;
+ struct ec_response_mkbp_info info;
if (cros_ec_info(dev, &info)) {
debug("%s: Could not read KBC info\n", __func__);
diff --git a/include/cros_ec.h b/include/cros_ec.h
index 999c3c9..3166132 100644
--- a/include/cros_ec.h
+++ b/include/cros_ec.h
@@ -151,7 +151,7 @@ enum {
};
/**
- * Set up the Chromium OS matrix keyboard protocol
+ * Initialise the Chromium OS EC driver
*
* @param blob Device tree blob containing setup information
* @param cros_ecp Returns pointer to the cros_ec device, or NULL if none
@@ -168,7 +168,7 @@ int cros_ec_init(const void *blob, struct cros_ec_dev **cros_ecp);
* @param info Place to put the info structure
*/
int cros_ec_info(struct cros_ec_dev *dev,
- struct ec_response_cros_ec_info *info);
+ struct ec_response_mkbp_info *info);
/**
* Read the host event flags
diff --git a/include/cros_ec_message.h b/include/cros_ec_message.h
index b1da53d..36e2d83 100644
--- a/include/cros_ec_message.h
+++ b/include/cros_ec_message.h
@@ -23,7 +23,7 @@ enum {
MSG_PROTO_BYTES = MSG_HEADER_BYTES + MSG_TRAILER_BYTES,
/* Max length of messages */
- MSG_BYTES = EC_HOST_PARAM_SIZE + MSG_PROTO_BYTES,
+ MSG_BYTES = EC_PROTO2_MAX_PARAM_SIZE + MSG_PROTO_BYTES,
};
#endif
diff --git a/include/ec_commands.h b/include/ec_commands.h
index d9c8c1f..78baab1 100644
--- a/include/ec_commands.h
+++ b/include/ec_commands.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
+/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
@@ -42,13 +42,19 @@
#define EC_LPC_ADDR_HOST_CMD 0x204
/* I/O addresses for host command args and params */
-#define EC_LPC_ADDR_HOST_ARGS 0x800
-#define EC_LPC_ADDR_HOST_PARAM 0x804
-#define EC_HOST_PARAM_SIZE 0x0fc /* Size of param area in bytes */
-
-/* I/O addresses for host command params, old interface */
-#define EC_LPC_ADDR_OLD_PARAM 0x880
-#define EC_OLD_PARAM_SIZE 0x080 /* Size of param area in bytes */
+/* Protocol version 2 */
+#define EC_LPC_ADDR_HOST_ARGS 0x800 /* And 0x801, 0x802, 0x803 */
+#define EC_LPC_ADDR_HOST_PARAM 0x804 /* For version 2 params; size is
+ * EC_PROTO2_MAX_PARAM_SIZE */
+/* Protocol version 3 */
+#define EC_LPC_ADDR_HOST_PACKET 0x800 /* Offset of version 3 packet */
+#define EC_LPC_HOST_PACKET_SIZE 0x100 /* Max size of version 3 packet */
+
+/* The actual block is 0x800-0x8ff, but some BIOSes think it's 0x880-0x8ff
+ * and they tell the kernel that so we have to think of it as two parts. */
+#define EC_HOST_CMD_REGION0 0x800
+#define EC_HOST_CMD_REGION1 0x880
+#define EC_HOST_CMD_REGION_SIZE 0x80
/* EC command register bit functions */
#define EC_LPC_CMDR_DATA (1 << 0) /* Data ready for host to read */
@@ -122,8 +128,8 @@
#define EC_SWITCH_LID_OPEN 0x01
#define EC_SWITCH_POWER_BUTTON_PRESSED 0x02
#define EC_SWITCH_WRITE_PROTECT_DISABLED 0x04
-/* Recovery requested via keyboard */
-#define EC_SWITCH_KEYBOARD_RECOVERY 0x08
+/* Was recovery requested via keyboard; now unused. */
+#define EC_SWITCH_IGNORE1 0x08
/* Recovery requested via dedicated signal (from servo board) */
#define EC_SWITCH_DEDICATED_RECOVERY 0x10
/* Was fake developer mode switch; now unused. Remove in next refactor. */
@@ -132,10 +138,13 @@
/* Host command interface flags */
/* Host command interface supports LPC args (LPC interface only) */
#define EC_HOST_CMD_FLAG_LPC_ARGS_SUPPORTED 0x01
+/* Host command interface supports version 3 protocol */
+#define EC_HOST_CMD_FLAG_VERSION_3 0x02
/* Wireless switch flags */
#define EC_WIRELESS_SWITCH_WLAN 0x01
#define EC_WIRELESS_SWITCH_BLUETOOTH 0x02
+#define EC_WIRELESS_SWITCH_WWAN 0x04
/*
* This header file is used in coreboot both in C and ACPI code. The ACPI code
@@ -191,6 +200,9 @@ enum ec_status {
EC_RES_UNAVAILABLE = 9, /* No response available */
EC_RES_TIMEOUT = 10, /* We got a timeout */
EC_RES_OVERFLOW = 11, /* Table / data overflow */
+ EC_RES_INVALID_HEADER = 12, /* Header contains invalid data */
+ EC_RES_REQUEST_TRUNCATED = 13, /* Didn't get the entire request */
+ EC_RES_RESPONSE_TOO_BIG = 14 /* Response was too big to handle */
};
/*
@@ -272,6 +284,105 @@ struct ec_lpc_host_args {
*/
#define EC_HOST_ARGS_FLAG_TO_HOST 0x02
+/*****************************************************************************/
+
+/*
+ * Protocol version 2 for I2C and SPI send a request this way:
+ *
+ * 0 EC_CMD_VERSION0 + (command version)
+ * 1 Command number
+ * 2 Length of params = N
+ * 3..N+2 Params, if any
+ * N+3 8-bit checksum of bytes 0..N+2
+ *
+ * The corresponding response is:
+ *
+ * 0 Result code (EC_RES_*)
+ * 1 Length of params = M
+ * 2..M+1 Params, if any
+ * M+2 8-bit checksum of bytes 0..M+1
+ */
+#define EC_PROTO2_REQUEST_HEADER_BYTES 3
+#define EC_PROTO2_REQUEST_TRAILER_BYTES 1
+#define EC_PROTO2_REQUEST_OVERHEAD (EC_PROTO2_REQUEST_HEADER_BYTES + \
+ EC_PROTO2_REQUEST_TRAILER_BYTES)
+
+#define EC_PROTO2_RESPONSE_HEADER_BYTES 2
+#define EC_PROTO2_RESPONSE_TRAILER_BYTES 1
+#define EC_PROTO2_RESPONSE_OVERHEAD (EC_PROTO2_RESPONSE_HEADER_BYTES + \
+ EC_PROTO2_RESPONSE_TRAILER_BYTES)
+
+/* Parameter length was limited by the LPC interface */
+#define EC_PROTO2_MAX_PARAM_SIZE 0xfc
+
+/* Maximum request and response packet sizes for protocol version 2 */
+#define EC_PROTO2_MAX_REQUEST_SIZE (EC_PROTO2_REQUEST_OVERHEAD + \
+ EC_PROTO2_MAX_PARAM_SIZE)
+#define EC_PROTO2_MAX_RESPONSE_SIZE (EC_PROTO2_RESPONSE_OVERHEAD + \
+ EC_PROTO2_MAX_PARAM_SIZE)
+
+/*****************************************************************************/
+
+/*
+ * Value written to legacy command port / prefix byte to indicate protocol
+ * 3+ structs are being used. Usage is bus-dependent.
+ */
+#define EC_COMMAND_PROTOCOL_3 0xda
+
+#define EC_HOST_REQUEST_VERSION 3
+
+/* Version 3 request from host */
+struct ec_host_request {
+ /* Struct version (=3)
+ *
+ * EC will return EC_RES_INVALID_HEADER if it receives a header with a
+ * version it doesn't know how to parse.
+ */
+ uint8_t struct_version;
+
+ /*
+ * Checksum of request and data; sum of all bytes including checksum
+ * should total to 0.
+ */
+ uint8_t checksum;
+
+ /* Command code */
+ uint16_t command;
+
+ /* Command version */
+ uint8_t command_version;
+
+ /* Unused byte in current protocol version; set to 0 */
+ uint8_t reserved;
+
+ /* Length of data which follows this header */
+ uint16_t data_len;
+} __packed;
+
+#define EC_HOST_RESPONSE_VERSION 3
+
+/* Version 3 response from EC */
+struct ec_host_response {
+ /* Struct version (=3) */
+ uint8_t struct_version;
+
+ /*
+ * Checksum of response and data; sum of all bytes including checksum
+ * should total to 0.
+ */
+ uint8_t checksum;
+
+ /* Result code (EC_RES_*) */
+ uint16_t result;
+
+ /* Length of data which follows this header */
+ uint16_t data_len;
+
+ /* Unused bytes in current protocol version; set to 0 */
+ uint16_t reserved;
+} __packed;
+
+/*****************************************************************************/
/*
* Notes on commands:
*
@@ -411,6 +522,46 @@ struct ec_response_get_comms_status {
uint32_t flags; /* Mask of enum ec_comms_status */
} __packed;
+/*
+ * Fake a variety of responses, purely for testing purposes.
+ * FIXME: Would be nice to force checksum errors.
+ */
+#define EC_CMD_TEST_PROTOCOL 0x0a
+
+/* Tell the EC what to send back to us. */
+struct ec_params_test_protocol {
+ uint32_t ec_result;
+ uint32_t ret_len;
+ uint8_t buf[32];
+} __packed;
+
+/* Here it comes... */
+struct ec_response_test_protocol {
+ uint8_t buf[32];
+} __packed;
+
+/* Get prococol information */
+#define EC_CMD_GET_PROTOCOL_INFO 0x0b
+
+/* Flags for ec_response_get_protocol_info.flags */
+/* EC_RES_IN_PROGRESS may be returned if a command is slow */
+#define EC_PROTOCOL_INFO_IN_PROGRESS_SUPPORTED (1 << 0)
+
+struct ec_response_get_protocol_info {
+ /* Fields which exist if@least protocol version 3 supported */
+
+ /* Bitmask of protocol versions supported (1 << n means version n)*/
+ uint32_t protocol_versions;
+
+ /* Maximum request packet size, in bytes */
+ uint16_t max_request_packet_size;
+
+ /* Maximum response packet size, in bytes */
+ uint16_t max_response_packet_size;
+
+ /* Flags; see EC_PROTOCOL_INFO_* */
+ uint32_t flags;
+} __packed;
/*****************************************************************************/
/* Flash commands */
@@ -452,15 +603,15 @@ struct ec_params_flash_read {
/* Write flash */
#define EC_CMD_FLASH_WRITE 0x12
+#define EC_VER_FLASH_WRITE 1
+
+/* Version 0 of the flash command supported only 64 bytes of data */
+#define EC_FLASH_WRITE_VER0_SIZE 64
struct ec_params_flash_write {
uint32_t offset; /* Byte offset to write */
uint32_t size; /* Size to write in bytes */
- /*
- * Data to write. Could really use EC_PARAM_SIZE - 8, but tidiest to
- * use a power of 2 so writes stay aligned.
- */
- uint8_t data[64];
+ /* Followed by data to write */
} __packed;
/* Erase flash */
@@ -729,6 +880,49 @@ enum lightbar_command {
};
/*****************************************************************************/
+/* LED control commands */
+
+#define EC_CMD_LED_CONTROL 0x29
+
+enum ec_led_id {
+ EC_LED_ID_BATTERY_LED = 0,
+ EC_LED_ID_POWER_BUTTON_LED,
+ EC_LED_ID_ADAPTER_LED,
+};
+
+/* LED control flags */
+#define EC_LED_FLAGS_QUERY (1 << 0) /* Query LED capability only */
+#define EC_LED_FLAGS_AUTO (1 << 1) /* Switch LED back to automatic control */
+
+enum ec_led_colors {
+ EC_LED_COLOR_RED = 0,
+ EC_LED_COLOR_GREEN,
+ EC_LED_COLOR_BLUE,
+ EC_LED_COLOR_YELLOW,
+ EC_LED_COLOR_WHITE,
+
+ EC_LED_COLOR_COUNT
+};
+
+struct ec_params_led_control {
+ uint8_t led_id; /* Which LED to control */
+ uint8_t flags; /* Control flags */
+
+ uint8_t brightness[EC_LED_COLOR_COUNT];
+} __packed;
+
+struct ec_response_led_control {
+ /*
+ * Available brightness value range.
+ *
+ * Range 0 means color channel not present.
+ * Range 1 means on/off control.
+ * Other values means the LED is control by PWM.
+ */
+ uint8_t brightness_range[EC_LED_COLOR_COUNT];
+} __packed;
+
+/*****************************************************************************/
/* Verified boot commands */
/*
@@ -916,57 +1110,57 @@ struct ec_params_tmp006_set_calibration {
} __packed;
/*****************************************************************************/
-/* CROS_EC - Matrix KeyBoard Protocol */
+/* MKBP - Matrix KeyBoard Protocol */
/*
* Read key state
*
- * Returns raw data for keyboard cols; see ec_response_cros_ec_info.cols for
+ * Returns raw data for keyboard cols; see ec_response_mkbp_info.cols for
* expected response size.
*/
-#define EC_CMD_CROS_EC_STATE 0x60
+#define EC_CMD_MKBP_STATE 0x60
/* Provide information about the matrix : number of rows and columns */
-#define EC_CMD_CROS_EC_INFO 0x61
+#define EC_CMD_MKBP_INFO 0x61
-struct ec_response_cros_ec_info {
+struct ec_response_mkbp_info {
uint32_t rows;
uint32_t cols;
uint8_t switches;
} __packed;
/* Simulate key press */
-#define EC_CMD_CROS_EC_SIMULATE_KEY 0x62
+#define EC_CMD_MKBP_SIMULATE_KEY 0x62
-struct ec_params_cros_ec_simulate_key {
+struct ec_params_mkbp_simulate_key {
uint8_t col;
uint8_t row;
uint8_t pressed;
} __packed;
/* Configure keyboard scanning */
-#define EC_CMD_CROS_EC_SET_CONFIG 0x64
-#define EC_CMD_CROS_EC_GET_CONFIG 0x65
+#define EC_CMD_MKBP_SET_CONFIG 0x64
+#define EC_CMD_MKBP_GET_CONFIG 0x65
/* flags */
-enum cros_ec_config_flags {
- EC_CROS_EC_FLAGS_ENABLE = 1, /* Enable keyboard scanning */
+enum mkbp_config_flags {
+ EC_MKBP_FLAGS_ENABLE = 1, /* Enable keyboard scanning */
};
-enum cros_ec_config_valid {
- EC_CROS_EC_VALID_SCAN_PERIOD = 1 << 0,
- EC_CROS_EC_VALID_POLL_TIMEOUT = 1 << 1,
- EC_CROS_EC_VALID_MIN_POST_SCAN_DELAY = 1 << 3,
- EC_CROS_EC_VALID_OUTPUT_SETTLE = 1 << 4,
- EC_CROS_EC_VALID_DEBOUNCE_DOWN = 1 << 5,
- EC_CROS_EC_VALID_DEBOUNCE_UP = 1 << 6,
- EC_CROS_EC_VALID_FIFO_MAX_DEPTH = 1 << 7,
+enum mkbp_config_valid {
+ EC_MKBP_VALID_SCAN_PERIOD = 1 << 0,
+ EC_MKBP_VALID_POLL_TIMEOUT = 1 << 1,
+ EC_MKBP_VALID_MIN_POST_SCAN_DELAY = 1 << 3,
+ EC_MKBP_VALID_OUTPUT_SETTLE = 1 << 4,
+ EC_MKBP_VALID_DEBOUNCE_DOWN = 1 << 5,
+ EC_MKBP_VALID_DEBOUNCE_UP = 1 << 6,
+ EC_MKBP_VALID_FIFO_MAX_DEPTH = 1 << 7,
};
/* Configuration for our key scanning algorithm */
-struct ec_cros_ec_config {
+struct ec_mkbp_config {
uint32_t valid_mask; /* valid fields */
- uint8_t flags; /* some flags (enum cros_ec_config_flags) */
+ uint8_t flags; /* some flags (enum mkbp_config_flags) */
uint8_t valid_flags; /* which flags are valid */
uint16_t scan_period_us; /* period between start of scans */
/* revert to interrupt mode after no activity for this long */
@@ -985,12 +1179,12 @@ struct ec_cros_ec_config {
uint8_t fifo_max_depth;
} __packed;
-struct ec_params_cros_ec_set_config {
- struct ec_cros_ec_config config;
+struct ec_params_mkbp_set_config {
+ struct ec_mkbp_config config;
} __packed;
-struct ec_response_cros_ec_get_config {
- struct ec_cros_ec_config config;
+struct ec_response_mkbp_get_config {
+ struct ec_mkbp_config config;
} __packed;
/* Run the key scan emulation */
@@ -1146,7 +1340,7 @@ struct ec_response_gpio_get {
#define EC_CMD_I2C_READ 0x94
struct ec_params_i2c_read {
- uint16_t addr;
+ uint16_t addr; /* 8-bit address (7-bit shifted << 1) */
uint8_t read_size; /* Either 8 or 16. */
uint8_t port;
uint8_t offset;
@@ -1160,7 +1354,7 @@ struct ec_response_i2c_read {
struct ec_params_i2c_write {
uint16_t data;
- uint16_t addr;
+ uint16_t addr; /* 8-bit address (7-bit shifted << 1) */
uint8_t write_size; /* Either 8 or 16. */
uint8_t port;
uint8_t offset;
@@ -1244,6 +1438,61 @@ struct ec_response_ldo_get {
} __packed;
/*****************************************************************************/
+/* Power info. */
+
+/*
+ * Get power info.
+ */
+#define EC_CMD_POWER_INFO 0x9d
+
+struct ec_response_power_info {
+ uint32_t usb_dev_type;
+ uint16_t voltage_ac;
+ uint16_t voltage_system;
+ uint16_t current_system;
+ uint16_t usb_current_limit;
+} __packed;
+
+/*****************************************************************************/
+/* I2C passthru command */
+
+#define EC_CMD_I2C_PASSTHRU 0x9e
+
+/* Slave address is 10 (not 7) bit */
+#define EC_I2C_FLAG_10BIT (1 << 16)
+
+/* Read data; if not present, message is a write */
+#define EC_I2C_FLAG_READ (1 << 15)
+
+/* Mask for address */
+#define EC_I2C_ADDR_MASK 0x3ff
+
+#define EC_I2C_STATUS_NAK (1 << 0) /* Transfer was not acknowledged */
+#define EC_I2C_STATUS_TIMEOUT (1 << 1) /* Timeout during transfer */
+
+/* Any error */
+#define EC_I2C_STATUS_ERROR (EC_I2C_STATUS_NAK | EC_I2C_STATUS_TIMEOUT)
+
+struct ec_params_i2c_passthru_msg {
+ uint16_t addr_flags; /* I2C slave address (7 or 10 bits) and flags */
+ uint16_t len; /* Number of bytes to read or write */
+} __packed;
+
+struct ec_params_i2c_passthru {
+ uint8_t port; /* I2C port number */
+ uint8_t num_msgs; /* Number of messages */
+ struct ec_params_i2c_passthru_msg msg[];
+ /* Data to write for all messages is concatenated here */
+} __packed;
+
+struct ec_response_i2c_passthru {
+ uint8_t i2c_status; /* Status flags (EC_I2C_STATUS_...) */
+ uint8_t num_msgs; /* Number of messages processed */
+ uint8_t data[]; /* Data read by messages concatenated here */
+} __packed;
+
+
+/*****************************************************************************/
/* Temporary debug commands. TODO: remove this crosbug.com/p/13849 */
/*
@@ -1259,7 +1508,16 @@ struct ec_response_ldo_get {
#define EC_CMD_CHARGE_CURRENT_LIMIT 0xa1
struct ec_params_current_limit {
- uint32_t limit;
+ uint32_t limit; /* in mA */
+} __packed;
+
+/*
+ * Set maximum external power current.
+ */
+#define EC_CMD_EXT_POWER_CURRENT_LIMIT 0xa2
+
+struct ec_params_ext_power_current_limit {
+ uint32_t limit; /* in mA */
} __packed;
/*****************************************************************************/
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 14/31] cros_ec: Clean up multiple EC protocol support
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (13 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
From: Randall Spangler <rspangler@chromium.org>
Version 1 protocols (without command version) were already no longer
supported in cros_ec.c. This removes some dead code from the
cros_ec_i2c driver.
Version 2 protcols (with command version) are now called
protocol_version=2, instead of cmd_version_is_supported=1.
A subsequent change will introduce protocol version 3 for SPI.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
drivers/misc/cros_ec.c | 21 +++++++++------
drivers/misc/cros_ec_i2c.c | 64 ++++++++++++++++++++--------------------------
drivers/misc/cros_ec_spi.c | 6 +++++
include/cros_ec.h | 5 ++--
4 files changed, 49 insertions(+), 47 deletions(-)
diff --git a/drivers/misc/cros_ec.c b/drivers/misc/cros_ec.c
index ff46762..33b9390 100644
--- a/drivers/misc/cros_ec.c
+++ b/drivers/misc/cros_ec.c
@@ -501,18 +501,23 @@ static int cros_ec_check_version(struct cros_ec_dev *dev)
*
* So for now, just read all the data anyway.
*/
- dev->cmd_version_is_supported = 1;
+
+ /* Try sending a version 2 packet */
+ dev->protocol_version = 2;
if (ec_command_inptr(dev, EC_CMD_HELLO, 0, &req, sizeof(req),
(uint8_t **)&resp, sizeof(*resp)) > 0) {
- /* It appears to understand new version commands */
- dev->cmd_version_is_supported = 1;
- } else {
- printf("%s: ERROR: old EC interface not supported\n",
- __func__);
- return -1;
+ return 0;
}
- return 0;
+ /*
+ * Fail if we're still here, since the EC doesn't understand any
+ * protcol version we speak. Version 1 interface without command
+ * version is no longer supported, and we don't know about any new
+ * protocol versions.
+ */
+ dev->protocol_version = 0;
+ printf("%s: ERROR: old EC interface not supported\n", __func__);
+ return -1;
}
int cros_ec_test(struct cros_ec_dev *dev)
diff --git a/drivers/misc/cros_ec_i2c.c b/drivers/misc/cros_ec_i2c.c
index 0fbab99..513cdb1 100644
--- a/drivers/misc/cros_ec_i2c.c
+++ b/drivers/misc/cros_ec_i2c.c
@@ -35,7 +35,7 @@ int cros_ec_i2c_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
uint8_t *ptr;
/* Receive input data, so that args will be dword aligned */
uint8_t *in_ptr;
- int ret;
+ int len, csum, ret;
old_bus = i2c_get_bus_num();
@@ -67,24 +67,24 @@ int cros_ec_i2c_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
* will be dword aligned.
*/
in_ptr = dev->din + sizeof(int64_t);
- if (!dev->cmd_version_is_supported) {
- /* Send an old-style command */
- *ptr++ = cmd;
- out_bytes = dout_len + 1;
- in_bytes = din_len + 2;
- in_ptr--; /* Expect just a status byte */
- } else {
- *ptr++ = EC_CMD_VERSION0 + cmd_version;
- *ptr++ = cmd;
- *ptr++ = dout_len;
- in_ptr -= 2; /* Expect status, length bytes */
+
+ if (dev->protocol_version != 2) {
+ /* Something we don't support */
+ debug("%s: Protocol version %d unsupported\n",
+ __func__, dev->protocol_version);
+ return -1;
}
+
+ *ptr++ = EC_CMD_VERSION0 + cmd_version;
+ *ptr++ = cmd;
+ *ptr++ = dout_len;
+ in_ptr -= 2; /* Expect status, length bytes */
+
memcpy(ptr, dout, dout_len);
ptr += dout_len;
- if (dev->cmd_version_is_supported)
- *ptr++ = (uint8_t)
- cros_ec_calc_checksum(dev->dout, dout_len + 3);
+ *ptr++ = (uint8_t)
+ cros_ec_calc_checksum(dev->dout, dout_len + 3);
/* Set to the proper i2c bus */
if (i2c_set_bus_num(dev->bus_num)) {
@@ -121,26 +121,20 @@ int cros_ec_i2c_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
return -(int)*in_ptr;
}
- if (dev->cmd_version_is_supported) {
- int len, csum;
-
- len = in_ptr[1];
- if (len + 3 > sizeof(dev->din)) {
- debug("%s: Received length %#02x too large\n",
- __func__, len);
- return -1;
- }
- csum = cros_ec_calc_checksum(in_ptr, 2 + len);
- if (csum != in_ptr[2 + len]) {
- debug("%s: Invalid checksum rx %#02x, calced %#02x\n",
- __func__, in_ptr[2 + din_len], csum);
- return -1;
- }
- din_len = min(din_len, len);
- cros_ec_dump_data("in", -1, in_ptr, din_len + 3);
- } else {
- cros_ec_dump_data("in (old)", -1, in_ptr, in_bytes);
+ len = in_ptr[1];
+ if (len + 3 > sizeof(dev->din)) {
+ debug("%s: Received length %#02x too large\n",
+ __func__, len);
+ return -1;
}
+ csum = cros_ec_calc_checksum(in_ptr, 2 + len);
+ if (csum != in_ptr[2 + len]) {
+ debug("%s: Invalid checksum rx %#02x, calced %#02x\n",
+ __func__, in_ptr[2 + din_len], csum);
+ return -1;
+ }
+ din_len = min(din_len, len);
+ cros_ec_dump_data("in", -1, in_ptr, din_len + 3);
/* Return pointer to dword-aligned input data, if any */
*dinp = dev->din + sizeof(int64_t);
@@ -178,7 +172,5 @@ int cros_ec_i2c_init(struct cros_ec_dev *dev, const void *blob)
{
i2c_init(dev->max_frequency, dev->addr);
- dev->cmd_version_is_supported = 0;
-
return 0;
}
diff --git a/drivers/misc/cros_ec_spi.c b/drivers/misc/cros_ec_spi.c
index 2fc9110..ef73782 100644
--- a/drivers/misc/cros_ec_spi.c
+++ b/drivers/misc/cros_ec_spi.c
@@ -42,6 +42,12 @@ int cros_ec_spi_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
int csum, len;
int rv;
+ if (dev->protocol_version != 2) {
+ debug("%s: Unsupported EC protcol version %d\n",
+ __func__, dev->protocol_version);
+ return -1;
+ }
+
/*
* Sanity-check input size to make sure it plus transaction overhead
* fits in the internal device buffer.
diff --git a/include/cros_ec.h b/include/cros_ec.h
index 3166132..1199d92 100644
--- a/include/cros_ec.h
+++ b/include/cros_ec.h
@@ -33,7 +33,7 @@ struct cros_ec_dev {
unsigned int bus_num; /* Bus number (for I2C) */
unsigned int max_frequency; /* Maximum interface frequency */
struct fdt_gpio_state ec_int; /* GPIO used as EC interrupt line */
- int cmd_version_is_supported; /* Device supports command versions */
+ int protocol_version; /* Protocol version to use */
int optimise_flash_write; /* Don't write erased flash blocks */
/*
@@ -260,8 +260,7 @@ int cros_ec_spi_decode_fdt(struct cros_ec_dev *dev, const void *blob);
* Check whether the LPC interface supports new-style commands.
*
* LPC has its own way of doing this, which involves checking LPC values
- * visible to the host. Do this, and update dev->cmd_version_is_supported
- * accordingly.
+ * visible to the host. Do this, and update dev->protocol_version accordingly.
*
* @param dev CROS-EC device to check
*/
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 15/31] cros_ec: Add base support for protocol v3
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (14 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
Protocol v2 was shipped with snow, link and spring. Protocol v3 is for
pit and is targetted at SPI operation.
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2:
- Add new patches to bring in protocol v3 support
drivers/misc/cros_ec.c | 165 ++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 164 insertions(+), 1 deletion(-)
diff --git a/drivers/misc/cros_ec.c b/drivers/misc/cros_ec.c
index 33b9390..a7716b8 100644
--- a/drivers/misc/cros_ec.c
+++ b/drivers/misc/cros_ec.c
@@ -74,11 +74,174 @@ int cros_ec_calc_checksum(const uint8_t *data, int size)
return csum & 0xff;
}
+/**
+ * Create a request packet for protocol version 3.
+ *
+ * The packet is stored in the device's internal output buffer.
+ *
+ * @param dev CROS-EC device
+ * @param cmd Command to send (EC_CMD_...)
+ * @param cmd_version Version of command to send (EC_VER_...)
+ * @param dout Output data (may be NULL If dout_len=0)
+ * @param dout_len Size of output data in bytes
+ * @return packet size in bytes, or <0 if error.
+ */
+static int create_proto3_request(struct cros_ec_dev *dev,
+ int cmd, int cmd_version,
+ const void *dout, int dout_len)
+{
+ struct ec_host_request *rq = (struct ec_host_request *)dev->dout;
+ int out_bytes = dout_len + sizeof(*rq);
+
+ /* Fail if output size is too big */
+ if (out_bytes > (int)sizeof(dev->dout)) {
+ debug("%s: Cannot send %d bytes\n", __func__, dout_len);
+ return -EC_RES_REQUEST_TRUNCATED;
+ }
+
+ /* Fill in request packet */
+ rq->struct_version = EC_HOST_REQUEST_VERSION;
+ rq->checksum = 0;
+ rq->command = cmd;
+ rq->command_version = cmd_version;
+ rq->reserved = 0;
+ rq->data_len = dout_len;
+
+ /* Copy data after header */
+ memcpy(rq + 1, dout, dout_len);
+
+ /* Write checksum field so the entire packet sums to 0 */
+ rq->checksum = (uint8_t)(-cros_ec_calc_checksum(dev->dout, out_bytes));
+
+ cros_ec_dump_data("out", cmd, dev->dout, out_bytes);
+
+ /* Return size of request packet */
+ return out_bytes;
+}
+
+/**
+ * Prepare the device to receive a protocol version 3 response.
+ *
+ * @param dev CROS-EC device
+ * @param din_len Maximum size of response in bytes
+ * @return maximum expected number of bytes in response, or <0 if error.
+ */
+static int prepare_proto3_response_buffer(struct cros_ec_dev *dev, int din_len)
+{
+ int in_bytes = din_len + sizeof(struct ec_host_response);
+
+ /* Fail if input size is too big */
+ if (in_bytes > (int)sizeof(dev->din)) {
+ debug("%s: Cannot receive %d bytes\n", __func__, din_len);
+ return -EC_RES_RESPONSE_TOO_BIG;
+ }
+
+ /* Return expected size of response packet */
+ return in_bytes;
+}
+
+/**
+ * Handle a protocol version 3 response packet.
+ *
+ * The packet must already be stored in the device's internal input buffer.
+ *
+ * @param dev CROS-EC device
+ * @param dinp Returns pointer to response data
+ * @param din_len Maximum size of response in bytes
+ * @return number of bytes of response data, or <0 if error
+ */
+static int handle_proto3_response(struct cros_ec_dev *dev,
+ uint8_t **dinp, int din_len)
+{
+ struct ec_host_response *rs = (struct ec_host_response *)dev->din;
+ int in_bytes;
+ int csum;
+
+ cros_ec_dump_data("in-header", -1, dev->din, sizeof(*rs));
+
+ /* Check input data */
+ if (rs->struct_version != EC_HOST_RESPONSE_VERSION) {
+ debug("%s: EC response version mismatch\n", __func__);
+ return -EC_RES_INVALID_RESPONSE;
+ }
+
+ if (rs->reserved) {
+ debug("%s: EC response reserved != 0\n", __func__);
+ return -EC_RES_INVALID_RESPONSE;
+ }
+
+ if (rs->data_len > din_len) {
+ debug("%s: EC returned too much data\n", __func__);
+ return -EC_RES_RESPONSE_TOO_BIG;
+ }
+
+ cros_ec_dump_data("in-data", -1, dev->din + sizeof(*rs), rs->data_len);
+
+ /* Update in_bytes to actual data size */
+ in_bytes = sizeof(*rs) + rs->data_len;
+
+ /* Verify checksum */
+ csum = cros_ec_calc_checksum(dev->din, in_bytes);
+ if (csum) {
+ debug("%s: EC response checksum invalid: 0x%02x\n", __func__,
+ csum);
+ return -EC_RES_INVALID_CHECKSUM;
+ }
+
+ /* Return error result, if any */
+ if (rs->result)
+ return -(int)rs->result;
+
+ /* If we're still here, set response data pointer and return length */
+ *dinp = (uint8_t *)(rs + 1);
+
+ return rs->data_len;
+}
+
+static int send_command_proto3(struct cros_ec_dev *dev,
+ int cmd, int cmd_version,
+ const void *dout, int dout_len,
+ uint8_t **dinp, int din_len)
+{
+ int out_bytes, in_bytes;
+ int rv;
+
+ /* Create request packet */
+ out_bytes = create_proto3_request(dev, cmd, cmd_version,
+ dout, dout_len);
+ if (out_bytes < 0)
+ return out_bytes;
+
+ /* Prepare response buffer */
+ in_bytes = prepare_proto3_response_buffer(dev, din_len);
+ if (in_bytes < 0)
+ return in_bytes;
+
+ switch (dev->interface) {
+ case CROS_EC_IF_NONE:
+ /* TODO: support protocol 3 for LPC, I2C; for now fall through */
+ default:
+ debug("%s: Unsupported interface\n", __func__);
+ rv = -1;
+ }
+ if (rv < 0)
+ return rv;
+
+ /* Process the response */
+ return handle_proto3_response(dev, dinp, din_len);
+}
+
static int send_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
const void *dout, int dout_len,
uint8_t **dinp, int din_len)
{
- int ret;
+ int ret = -1;
+
+ /* Handle protocol version 3 support */
+ if (dev->protocol_version == 3) {
+ return send_command_proto3(dev, cmd, cmd_version,
+ dout, dout_len, dinp, din_len);
+ }
switch (dev->interface) {
#ifdef CONFIG_CROS_EC_SPI
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 16/31] cros_ec: spi: Add support for EC protocol version 3
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (15 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
From: Randall Spangler <rspangler@chromium.org>
Protocol version 3 will be attempted first; if the EC doesn't support
it, u-boot will fall back to the old protocol version (2).
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
drivers/misc/cros_ec.c | 12 ++++++++++++
drivers/misc/cros_ec_spi.c | 24 ++++++++++++++++++++++++
include/cros_ec.h | 13 +++++++++++++
3 files changed, 49 insertions(+)
diff --git a/drivers/misc/cros_ec.c b/drivers/misc/cros_ec.c
index a7716b8..5682d39 100644
--- a/drivers/misc/cros_ec.c
+++ b/drivers/misc/cros_ec.c
@@ -218,6 +218,11 @@ static int send_command_proto3(struct cros_ec_dev *dev,
return in_bytes;
switch (dev->interface) {
+#ifdef CONFIG_CROS_EC_SPI
+ case CROS_EC_IF_SPI:
+ rv = cros_ec_spi_packet(dev, out_bytes, in_bytes);
+ break;
+#endif
case CROS_EC_IF_NONE:
/* TODO: support protocol 3 for LPC, I2C; for now fall through */
default:
@@ -665,6 +670,13 @@ static int cros_ec_check_version(struct cros_ec_dev *dev)
* So for now, just read all the data anyway.
*/
+ /* Try sending a version 3 packet */
+ dev->protocol_version = 3;
+ if (ec_command_inptr(dev, EC_CMD_HELLO, 0, &req, sizeof(req),
+ (uint8_t **)&resp, sizeof(*resp)) > 0) {
+ return 0;
+ }
+
/* Try sending a version 2 packet */
dev->protocol_version = 2;
if (ec_command_inptr(dev, EC_CMD_HELLO, 0, &req, sizeof(req),
diff --git a/drivers/misc/cros_ec_spi.c b/drivers/misc/cros_ec_spi.c
index ef73782..7df709c 100644
--- a/drivers/misc/cros_ec_spi.c
+++ b/drivers/misc/cros_ec_spi.c
@@ -17,6 +17,30 @@
#include <cros_ec.h>
#include <spi.h>
+int cros_ec_spi_packet(struct cros_ec_dev *dev, int out_bytes, int in_bytes)
+{
+ int rv;
+
+ /* Do the transfer */
+ if (spi_claim_bus(dev->spi)) {
+ debug("%s: Cannot claim SPI bus\n", __func__);
+ return -1;
+ }
+
+ rv = spi_xfer(dev->spi, max(out_bytes, in_bytes) * 8,
+ dev->dout, dev->din,
+ SPI_XFER_BEGIN | SPI_XFER_END);
+
+ spi_release_bus(dev->spi);
+
+ if (rv) {
+ debug("%s: Cannot complete SPI transfer\n", __func__);
+ return -1;
+ }
+
+ return in_bytes;
+}
+
/**
* Send a command to a LPC CROS_EC device and return the reply.
*
diff --git a/include/cros_ec.h b/include/cros_ec.h
index 1199d92..84f9104 100644
--- a/include/cros_ec.h
+++ b/include/cros_ec.h
@@ -312,6 +312,19 @@ int cros_ec_spi_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
uint8_t **dinp, int din_len);
/**
+ * Send a packet to a CROS-EC device and return the response packet.
+ *
+ * Expects the request packet to be stored in dev->dout. Stores the response
+ * packet in dev->din.
+ *
+ * @param dev CROS-EC device
+ * @param out_bytes Size of request packet to output
+ * @param in_bytes Maximum size of response packet to receive
+ * @return number of bytes in response packet, or <0 on error
+ */
+int cros_ec_spi_packet(struct cros_ec_dev *dev, int out_bytes, int in_bytes);
+
+/**
* Dump a block of data for a command.
*
* @param name Name for data (e.g. 'in', 'out')
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 17/31] cros_ec: Correct comparison between signed and unsigned numbers
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (16 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
Due to signed/unsigned comparison, '< sizeof(struct)' does not do the right
thing, since if ec_command() returns a -ve number we will consider this be
success.
Adjust all comparisons to avoid this problem.
This error was found with sandbox, which gives a segfault in this case. On
ARM we may instead silently fail.
We should also consider turning on -Wsign-compare to catch this sort of thing
in future.
Reviewed-by: Andrew Chew <achew@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Tested-by: Andrew Chew <achew@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com>
---
Changes in v2: None
drivers/misc/cros_ec.c | 34 ++++++++++++++++++----------------
1 file changed, 18 insertions(+), 16 deletions(-)
diff --git a/drivers/misc/cros_ec.c b/drivers/misc/cros_ec.c
index 5682d39..a4bdb23 100644
--- a/drivers/misc/cros_ec.c
+++ b/drivers/misc/cros_ec.c
@@ -21,6 +21,7 @@
#include <fdtdec.h>
#include <malloc.h>
#include <spi.h>
+#include <asm/errno.h>
#include <asm/io.h>
#include <asm-generic/gpio.h>
@@ -298,7 +299,7 @@ static int ec_command_inptr(struct cros_ec_dev *dev, uint8_t cmd,
int cmd_version, const void *dout, int dout_len, uint8_t **dinp,
int din_len)
{
- uint8_t *din;
+ uint8_t *din = NULL;
int len;
len = send_command(dev, cmd, cmd_version, dout, dout_len,
@@ -306,7 +307,7 @@ static int ec_command_inptr(struct cros_ec_dev *dev, uint8_t cmd,
/* If the command doesn't complete, wait a while */
if (len == -EC_RES_IN_PROGRESS) {
- struct ec_response_get_comms_status *resp;
+ struct ec_response_get_comms_status *resp = NULL;
ulong start;
/* Wait for command to complete */
@@ -334,7 +335,8 @@ static int ec_command_inptr(struct cros_ec_dev *dev, uint8_t cmd,
NULL, 0, &din, din_len);
}
- debug("%s: len=%d, dinp=%p, *dinp=%p\n", __func__, len, dinp, *dinp);
+ debug("%s: len=%d, dinp=%p, *dinp=%p\n", __func__, len, dinp,
+ dinp ? *dinp : NULL);
if (dinp) {
/* If we have any data to return, it must be 64bit-aligned */
assert(len <= 0 || !((uintptr_t)din & 7));
@@ -386,7 +388,7 @@ static int ec_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
int cros_ec_scan_keyboard(struct cros_ec_dev *dev, struct mbkp_keyscan *scan)
{
if (ec_command(dev, EC_CMD_MKBP_STATE, 0, NULL, 0, scan,
- sizeof(scan->data)) < sizeof(scan->data))
+ sizeof(scan->data)) != sizeof(scan->data))
return -1;
return 0;
@@ -397,10 +399,10 @@ int cros_ec_read_id(struct cros_ec_dev *dev, char *id, int maxlen)
struct ec_response_get_version *r;
if (ec_command_inptr(dev, EC_CMD_GET_VERSION, 0, NULL, 0,
- (uint8_t **)&r, sizeof(*r)) < sizeof(*r))
+ (uint8_t **)&r, sizeof(*r)) != sizeof(*r))
return -1;
- if (maxlen > sizeof(r->version_string_ro))
+ if (maxlen > (int)sizeof(r->version_string_ro))
maxlen = sizeof(r->version_string_ro);
switch (r->current_image) {
@@ -423,7 +425,7 @@ int cros_ec_read_version(struct cros_ec_dev *dev,
{
if (ec_command_inptr(dev, EC_CMD_GET_VERSION, 0, NULL, 0,
(uint8_t **)versionp, sizeof(**versionp))
- < sizeof(**versionp))
+ != sizeof(**versionp))
return -1;
return 0;
@@ -444,7 +446,7 @@ int cros_ec_read_current_image(struct cros_ec_dev *dev,
struct ec_response_get_version *r;
if (ec_command_inptr(dev, EC_CMD_GET_VERSION, 0, NULL, 0,
- (uint8_t **)&r, sizeof(*r)) < sizeof(*r))
+ (uint8_t **)&r, sizeof(*r)) != sizeof(*r))
return -1;
*image = r->current_image;
@@ -578,7 +580,7 @@ int cros_ec_interrupt_pending(struct cros_ec_dev *dev)
{
/* no interrupt support : always poll */
if (!fdt_gpio_isvalid(&dev->ec_int))
- return 1;
+ return -ENOENT;
return !gpio_get_value(dev->ec_int.gpio);
}
@@ -586,7 +588,7 @@ int cros_ec_interrupt_pending(struct cros_ec_dev *dev)
int cros_ec_info(struct cros_ec_dev *dev, struct ec_response_mkbp_info *info)
{
if (ec_command(dev, EC_CMD_MKBP_INFO, 0, NULL, 0, info,
- sizeof(*info)) < sizeof(*info))
+ sizeof(*info)) != sizeof(*info))
return -1;
return 0;
@@ -601,7 +603,7 @@ int cros_ec_get_host_events(struct cros_ec_dev *dev, uint32_t *events_ptr)
* used by ACPI/SMI.
*/
if (ec_command_inptr(dev, EC_CMD_HOST_EVENT_GET_B, 0, NULL, 0,
- (uint8_t **)&resp, sizeof(*resp)) < sizeof(*resp))
+ (uint8_t **)&resp, sizeof(*resp)) < (int)sizeof(*resp))
return -1;
if (resp->mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_INVALID))
@@ -639,7 +641,7 @@ int cros_ec_flash_protect(struct cros_ec_dev *dev,
if (ec_command(dev, EC_CMD_FLASH_PROTECT, EC_VER_FLASH_PROTECT,
¶ms, sizeof(params),
- resp, sizeof(*resp)) < sizeof(*resp))
+ resp, sizeof(*resp)) != sizeof(*resp))
return -1;
return 0;
@@ -889,7 +891,7 @@ int cros_ec_flash_update_rw(struct cros_ec_dev *dev,
if (cros_ec_flash_offset(dev, EC_FLASH_REGION_RW, &rw_offset, &rw_size))
return -1;
- if (image_size > rw_size)
+ if (image_size > (int)rw_size)
return -1;
/* Invalidate the existing hash, just in case the AP reboots
@@ -975,7 +977,7 @@ int cros_ec_get_ldo(struct cros_ec_dev *dev, uint8_t index, uint8_t *state)
if (ec_command_inptr(dev, EC_CMD_LDO_GET, 0,
¶ms, sizeof(params),
- (uint8_t **)&resp, sizeof(*resp)) < sizeof(*resp))
+ (uint8_t **)&resp, sizeof(*resp)) != sizeof(*resp))
return -1;
*state = resp->state;
@@ -1436,10 +1438,10 @@ static int do_cros_ec(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
if (!ret) {
/* Print versions */
printf("RO version: %1.*s\n",
- sizeof(p->version_string_ro),
+ (int)sizeof(p->version_string_ro),
p->version_string_ro);
printf("RW version: %1.*s\n",
- sizeof(p->version_string_rw),
+ (int)sizeof(p->version_string_rw),
p->version_string_rw);
printf("Firmware copy: %s\n",
(p->current_image <
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 18/31] cros_ec: sandbox: Add Chrome OS EC emulation
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (17 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
Add a simple emulation of the Chrome OS EC for sandbox, so that it can
perform various EC tasks such as keyboard handling.
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
drivers/misc/Makefile | 1 +
drivers/misc/cros_ec.c | 16 ++
drivers/misc/cros_ec_sandbox.c | 559 +++++++++++++++++++++++++++++++++++++++++
include/cros_ec.h | 21 ++
include/fdtdec.h | 1 +
lib/fdtdec.c | 1 +
6 files changed, 599 insertions(+)
create mode 100644 drivers/misc/cros_ec_sandbox.c
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index c77e40a..c25e92d 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_CBMEM_CONSOLE) += cbmem_console.o
obj-$(CONFIG_CROS_EC) += cros_ec.o
obj-$(CONFIG_CROS_EC_LPC) += cros_ec_lpc.o
obj-$(CONFIG_CROS_EC_I2C) += cros_ec_i2c.o
+obj-$(CONFIG_CROS_EC_SANDBOX) += cros_ec_sandbox.o
obj-$(CONFIG_CROS_EC_SPI) += cros_ec_spi.o
obj-$(CONFIG_FSL_IIM) += fsl_iim.o
obj-$(CONFIG_GPIO_LED) += gpio_led.o
diff --git a/drivers/misc/cros_ec.c b/drivers/misc/cros_ec.c
index a4bdb23..7e8c58f 100644
--- a/drivers/misc/cros_ec.c
+++ b/drivers/misc/cros_ec.c
@@ -224,6 +224,11 @@ static int send_command_proto3(struct cros_ec_dev *dev,
rv = cros_ec_spi_packet(dev, out_bytes, in_bytes);
break;
#endif
+#ifdef CONFIG_CROS_EC_SANDBOX
+ case CROS_EC_IF_SANDBOX:
+ rv = cros_ec_sandbox_packet(dev, out_bytes, in_bytes);
+ break;
+#endif
case CROS_EC_IF_NONE:
/* TODO: support protocol 3 for LPC, I2C; for now fall through */
default:
@@ -1033,6 +1038,11 @@ static int cros_ec_decode_fdt(const void *blob, int node,
dev->interface = CROS_EC_IF_LPC;
break;
#endif
+#ifdef CONFIG_CROS_EC_SANDBOX
+ case COMPAT_SANDBOX_HOST_EMULATION:
+ dev->interface = CROS_EC_IF_SANDBOX;
+ break;
+#endif
default:
debug("%s: Unknown compat id %d\n", __func__, compat);
return -1;
@@ -1088,6 +1098,12 @@ int cros_ec_init(const void *blob, struct cros_ec_dev **cros_ecp)
return -CROS_EC_ERR_DEV_INIT;
break;
#endif
+#ifdef CONFIG_CROS_EC_SANDBOX
+ case CROS_EC_IF_SANDBOX:
+ if (cros_ec_sandbox_init(dev, blob))
+ return -CROS_EC_ERR_DEV_INIT;
+ break;
+#endif
case CROS_EC_IF_NONE:
default:
return 0;
diff --git a/drivers/misc/cros_ec_sandbox.c b/drivers/misc/cros_ec_sandbox.c
new file mode 100644
index 0000000..4bb1d60
--- /dev/null
+++ b/drivers/misc/cros_ec_sandbox.c
@@ -0,0 +1,559 @@
+/*
+ * Chromium OS cros_ec driver - sandbox emulation
+ *
+ * Copyright (c) 2013 The Chromium OS Authors.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <cros_ec.h>
+#include <ec_commands.h>
+#include <errno.h>
+#include <hash.h>
+#include <malloc.h>
+#include <os.h>
+#include <sha256.h>
+#include <spi.h>
+#include <asm/state.h>
+#include <asm/sdl.h>
+#include <linux/input.h>
+
+/*
+ * Ultimately it shold be possible to connect an Chrome OS EC emulation
+ * to U-Boot and remove all of this code. But this provides a test
+ * environment for bringing up chromeos_sandbox and demonstrating its
+ * utility.
+ *
+ * This emulation includes the following:
+ *
+ * 1. Emulation of the keyboard, by converting keypresses received from SDL
+ * into key scan data, passed back from the EC as key scan messages. The
+ * key layout is read from the device tree.
+ *
+ * 2. Emulation of vboot context - so this can be read/written as required.
+ *
+ * 3. Save/restore of EC state, so that the vboot context, flash memory
+ * contents and current image can be preserved across boots. This is important
+ * since the EC is supposed to continue running even if the AP resets.
+ *
+ * 4. Some event support, in particular allowing Escape to be pressed on boot
+ * to enter recovery mode. The EC passes this to U-Boot through the normal
+ * event message.
+ *
+ * 5. Flash read/write/erase support, so that software sync works. The
+ * protect messages are supported but no protection is implemented.
+ *
+ * 6. Hashing of the EC image, again to support software sync.
+ *
+ * Other features can be added, although a better path is probably to link
+ * the EC image in with U-Boot (Vic has demonstrated a prototype for this).
+ */
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define KEYBOARD_ROWS 8
+#define KEYBOARD_COLS 13
+
+/* A single entry of the key matrix */
+struct ec_keymatrix_entry {
+ int row; /* key matrix row */
+ int col; /* key matrix column */
+ int keycode; /* corresponding linux key code */
+};
+
+/**
+ * struct ec_state - Information about the EC state
+ *
+ * @vbnv_context: Vboot context data stored by EC
+ * @ec_config: FDT config information about the EC (e.g. flashmap)
+ * @flash_data: Contents of flash memory
+ * @flash_data_len: Size of flash memory
+ * @current_image: Current image the EC is running
+ * @matrix_count: Number of keys to decode in matrix
+ * @matrix: Information about keyboard matrix
+ * @keyscan: Current keyscan information (bit set for each row/column pressed)
+ * @recovery_req: Keyboard recovery requested
+ */
+struct ec_state {
+ uint8_t vbnv_context[EC_VBNV_BLOCK_SIZE];
+ struct fdt_cros_ec ec_config;
+ uint8_t *flash_data;
+ int flash_data_len;
+ enum ec_current_image current_image;
+ int matrix_count;
+ struct ec_keymatrix_entry *matrix; /* the key matrix info */
+ uint8_t keyscan[KEYBOARD_COLS];
+ bool recovery_req;
+} s_state, *state;
+
+/**
+ * cros_ec_read_state() - read the sandbox EC state from the state file
+ *
+ * If data is available, then blob and node will provide access to it. If
+ * not this function sets up an empty EC.
+ *
+ * @param blob: Pointer to device tree blob, or NULL if no data to read
+ * @param node: Node offset to read from
+ */
+static int cros_ec_read_state(const void *blob, int node)
+{
+ struct ec_state *ec = &s_state;
+ const char *prop;
+ int len;
+
+ /* Set everything to defaults */
+ ec->current_image = EC_IMAGE_RO;
+ if (!blob)
+ return 0;
+
+ /* Read the data if available */
+ ec->current_image = fdtdec_get_int(blob, node, "current-image",
+ EC_IMAGE_RO);
+ prop = fdt_getprop(blob, node, "vbnv-context", &len);
+ if (prop && len == sizeof(ec->vbnv_context))
+ memcpy(ec->vbnv_context, prop, len);
+
+ prop = fdt_getprop(blob, node, "flash-data", &len);
+ if (prop) {
+ ec->flash_data_len = len;
+ ec->flash_data = os_malloc(len);
+ if (!ec->flash_data)
+ return -ENOMEM;
+ memcpy(ec->flash_data, prop, len);
+ debug("%s: Loaded EC flash data size %#x\n", __func__, len);
+ }
+
+ return 0;
+}
+
+/**
+ * cros_ec_write_state() - Write out our state to the state file
+ *
+ * The caller will ensure that there is a node ready for the state. The node
+ * may already contain the old state, in which case it is overridden.
+ *
+ * @param blob: Device tree blob holding state
+ * @param node: Node to write our state into
+ */
+static int cros_ec_write_state(void *blob, int node)
+{
+ struct ec_state *ec = &s_state;
+
+ /* We are guaranteed enough space to write basic properties */
+ fdt_setprop_u32(blob, node, "current-image", ec->current_image);
+ fdt_setprop(blob, node, "vbnv-context", ec->vbnv_context,
+ sizeof(ec->vbnv_context));
+ return state_setprop(node, "flash-data", ec->flash_data,
+ ec->ec_config.flash.length);
+}
+
+SANDBOX_STATE_IO(cros_ec, "google,cros-ec", cros_ec_read_state,
+ cros_ec_write_state);
+
+/**
+ * Return the number of bytes used in the specified image.
+ *
+ * This is the actual size of code+data in the image, as opposed to the
+ * amount of space reserved in flash for that image. This code is similar to
+ * that used by the real EC code base.
+ *
+ * @param ec Current emulated EC state
+ * @param entry Flash map entry containing the image to check
+ * @return actual image size in bytes, 0 if the image contains no content or
+ * error.
+ */
+static int get_image_used(struct ec_state *ec, struct fmap_entry *entry)
+{
+ int size;
+
+ /*
+ * Scan backwards looking for 0xea byte, which is by definition the
+ * last byte of the image. See ec.lds.S for how this is inserted at
+ * the end of the image.
+ */
+ for (size = entry->length - 1;
+ size > 0 && ec->flash_data[entry->offset + size] != 0xea;
+ size--)
+ ;
+
+ return size ? size + 1 : 0; /* 0xea byte IS part of the image */
+}
+
+/**
+ * Read the key matrix from the device tree
+ *
+ * Keymap entries in the fdt take the form of 0xRRCCKKKK where
+ * RR=Row CC=Column KKKK=Key Code
+ *
+ * @param ec Current emulated EC state
+ * @param blob Device tree blob containing keyscan information
+ * @param node Keyboard node of device tree containing keyscan information
+ * @return 0 if ok, -1 on error
+ */
+static int keyscan_read_fdt_matrix(struct ec_state *ec, const void *blob,
+ int node)
+{
+ const u32 *cell;
+ int upto;
+ int len;
+
+ cell = fdt_getprop(blob, node, "linux,keymap", &len);
+ ec->matrix_count = len / 4;
+ ec->matrix = calloc(ec->matrix_count, sizeof(*ec->matrix));
+ if (!ec->matrix) {
+ debug("%s: Out of memory for key matrix\n", __func__);
+ return -1;
+ }
+
+ /* Now read the data */
+ for (upto = 0; upto < ec->matrix_count; upto++) {
+ struct ec_keymatrix_entry *matrix = &ec->matrix[upto];
+ u32 word;
+
+ word = fdt32_to_cpu(*cell++);
+ matrix->row = word >> 24;
+ matrix->col = (word >> 16) & 0xff;
+ matrix->keycode = word & 0xffff;
+
+ /* Hard-code some sanity limits for now */
+ if (matrix->row >= KEYBOARD_ROWS ||
+ matrix->col >= KEYBOARD_COLS) {
+ debug("%s: Matrix pos out of range (%d,%d)\n",
+ __func__, matrix->row, matrix->col);
+ return -1;
+ }
+ }
+
+ if (upto != ec->matrix_count) {
+ debug("%s: Read mismatch from key matrix\n", __func__);
+ return -1;
+ }
+
+ return 0;
+}
+
+/**
+ * Return the next keyscan message contents
+ *
+ * @param ec Current emulated EC state
+ * @param scan Place to put keyscan bytes for the keyscan message (must hold
+ * enough space for a full keyscan)
+ * @return number of bytes of valid scan data
+ */
+static int cros_ec_keyscan(struct ec_state *ec, uint8_t *scan)
+{
+ const struct ec_keymatrix_entry *matrix;
+ int bytes = KEYBOARD_COLS;
+ int key[8]; /* allow up to 8 keys to be pressed at once */
+ int count;
+ int i;
+
+ memset(ec->keyscan, '\0', bytes);
+ count = sandbox_sdl_scan_keys(key, ARRAY_SIZE(key));
+
+ /* Look up keycode in matrix */
+ for (i = 0, matrix = ec->matrix; i < ec->matrix_count; i++, matrix++) {
+ bool found;
+ int j;
+
+ for (found = false, j = 0; j < count; j++) {
+ if (matrix->keycode == key[j])
+ found = true;
+ }
+
+ if (found) {
+ debug("%d: %d,%d\n", matrix->keycode, matrix->row,
+ matrix->col);
+ ec->keyscan[matrix->col] |= 1 << matrix->row;
+ }
+ }
+
+ memcpy(scan, ec->keyscan, bytes);
+ return bytes;
+}
+
+/**
+ * Process an emulated EC command
+ *
+ * @param ec Current emulated EC state
+ * @param req_hdr Pointer to request header
+ * @param req_data Pointer to body of request
+ * @param resp_hdr Pointer to place to put response header
+ * @param resp_data Pointer to place to put response data, if any
+ * @return length of response data, or 0 for no response data, or -1 on error
+ */
+static int process_cmd(struct ec_state *ec,
+ struct ec_host_request *req_hdr, const void *req_data,
+ struct ec_host_response *resp_hdr, void *resp_data)
+{
+ int len;
+
+ /* TODO(sjg at chromium.org): Check checksums */
+ debug("EC command %#0x\n", req_hdr->command);
+
+ switch (req_hdr->command) {
+ case EC_CMD_HELLO: {
+ const struct ec_params_hello *req = req_data;
+ struct ec_response_hello *resp = resp_data;
+
+ resp->out_data = req->in_data + 0x01020304;
+ len = sizeof(*resp);
+ break;
+ }
+ case EC_CMD_GET_VERSION: {
+ struct ec_response_get_version *resp = resp_data;
+
+ strcpy(resp->version_string_ro, "sandbox_ro");
+ strcpy(resp->version_string_rw, "sandbox_rw");
+ resp->current_image = ec->current_image;
+ debug("Current image %d\n", resp->current_image);
+ len = sizeof(*resp);
+ break;
+ }
+ case EC_CMD_VBNV_CONTEXT: {
+ const struct ec_params_vbnvcontext *req = req_data;
+ struct ec_response_vbnvcontext *resp = resp_data;
+
+ switch (req->op) {
+ case EC_VBNV_CONTEXT_OP_READ:
+ memcpy(resp->block, ec->vbnv_context,
+ sizeof(resp->block));
+ len = sizeof(*resp);
+ break;
+ case EC_VBNV_CONTEXT_OP_WRITE:
+ memcpy(ec->vbnv_context, resp->block,
+ sizeof(resp->block));
+ len = 0;
+ break;
+ default:
+ printf(" ** Unknown vbnv_context command %#02x\n",
+ req->op);
+ return -1;
+ }
+ break;
+ }
+ case EC_CMD_REBOOT_EC: {
+ const struct ec_params_reboot_ec *req = req_data;
+
+ printf("Request reboot type %d\n", req->cmd);
+ switch (req->cmd) {
+ case EC_REBOOT_DISABLE_JUMP:
+ len = 0;
+ break;
+ case EC_REBOOT_JUMP_RW:
+ ec->current_image = EC_IMAGE_RW;
+ len = 0;
+ break;
+ default:
+ puts(" ** Unknown type");
+ return -1;
+ }
+ break;
+ }
+ case EC_CMD_HOST_EVENT_GET_B: {
+ struct ec_response_host_event_mask *resp = resp_data;
+
+ resp->mask = 0;
+ if (ec->recovery_req) {
+ resp->mask |= EC_HOST_EVENT_MASK(
+ EC_HOST_EVENT_KEYBOARD_RECOVERY);
+ }
+
+ len = sizeof(*resp);
+ break;
+ }
+ case EC_CMD_VBOOT_HASH: {
+ const struct ec_params_vboot_hash *req = req_data;
+ struct ec_response_vboot_hash *resp = resp_data;
+ struct fmap_entry *entry;
+ int ret, size;
+
+ entry = &state->ec_config.region[EC_FLASH_REGION_RW];
+
+ switch (req->cmd) {
+ case EC_VBOOT_HASH_RECALC:
+ case EC_VBOOT_HASH_GET:
+ size = SHA256_SUM_LEN;
+ len = get_image_used(ec, entry);
+ ret = hash_block("sha256",
+ ec->flash_data + entry->offset,
+ len, resp->hash_digest, &size);
+ if (ret) {
+ printf(" ** hash_block() failed\n");
+ return -1;
+ }
+ resp->status = EC_VBOOT_HASH_STATUS_DONE;
+ resp->hash_type = EC_VBOOT_HASH_TYPE_SHA256;
+ resp->digest_size = size;
+ resp->reserved0 = 0;
+ resp->offset = entry->offset;
+ resp->size = len;
+ len = sizeof(*resp);
+ break;
+ default:
+ printf(" ** EC_CMD_VBOOT_HASH: Unknown command %d\n",
+ req->cmd);
+ return -1;
+ }
+ break;
+ }
+ case EC_CMD_FLASH_PROTECT: {
+ const struct ec_params_flash_protect *req = req_data;
+ struct ec_response_flash_protect *resp = resp_data;
+ uint32_t expect = EC_FLASH_PROTECT_ALL_NOW |
+ EC_FLASH_PROTECT_ALL_AT_BOOT;
+
+ printf("mask=%#x, flags=%#x\n", req->mask, req->flags);
+ if (req->flags == expect || req->flags == 0) {
+ resp->flags = req->flags ? EC_FLASH_PROTECT_ALL_NOW :
+ 0;
+ resp->valid_flags = EC_FLASH_PROTECT_ALL_NOW;
+ resp->writable_flags = 0;
+ len = sizeof(*resp);
+ } else {
+ puts(" ** unexpected flash protect request\n");
+ return -1;
+ }
+ break;
+ }
+ case EC_CMD_FLASH_REGION_INFO: {
+ const struct ec_params_flash_region_info *req = req_data;
+ struct ec_response_flash_region_info *resp = resp_data;
+ struct fmap_entry *entry;
+
+ switch (req->region) {
+ case EC_FLASH_REGION_RO:
+ case EC_FLASH_REGION_RW:
+ case EC_FLASH_REGION_WP_RO:
+ entry = &state->ec_config.region[req->region];
+ resp->offset = entry->offset;
+ resp->size = entry->length;
+ len = sizeof(*resp);
+ printf("EC flash region %d: offset=%#x, size=%#x\n",
+ req->region, resp->offset, resp->size);
+ break;
+ default:
+ printf("** Unknown flash region %d\n", req->region);
+ return -1;
+ }
+ break;
+ }
+ case EC_CMD_FLASH_ERASE: {
+ const struct ec_params_flash_erase *req = req_data;
+
+ memset(ec->flash_data + req->offset,
+ ec->ec_config.flash_erase_value,
+ req->size);
+ len = 0;
+ break;
+ }
+ case EC_CMD_FLASH_WRITE: {
+ const struct ec_params_flash_write *req = req_data;
+
+ memcpy(ec->flash_data + req->offset, req + 1, req->size);
+ len = 0;
+ break;
+ }
+ case EC_CMD_MKBP_STATE:
+ len = cros_ec_keyscan(ec, resp_data);
+ break;
+ default:
+ printf(" ** Unknown EC command %#02x\n", req_hdr->command);
+ return -1;
+ }
+
+ return len;
+}
+
+int cros_ec_sandbox_packet(struct cros_ec_dev *dev, int out_bytes,
+ int in_bytes)
+{
+ struct ec_host_request *req_hdr = (struct ec_host_request *)dev->dout;
+ const void *req_data = req_hdr + 1;
+ struct ec_host_response *resp_hdr = (struct ec_host_response *)dev->din;
+ void *resp_data = resp_hdr + 1;
+ int len;
+
+ len = process_cmd(&s_state, req_hdr, req_data, resp_hdr, resp_data);
+ if (len < 0)
+ return len;
+
+ resp_hdr->struct_version = 3;
+ resp_hdr->result = EC_RES_SUCCESS;
+ resp_hdr->data_len = len;
+ resp_hdr->reserved = 0;
+ len += sizeof(*resp_hdr);
+ resp_hdr->checksum = 0;
+ resp_hdr->checksum = (uint8_t)
+ -cros_ec_calc_checksum((const uint8_t *)resp_hdr, len);
+
+ return in_bytes;
+}
+
+int cros_ec_sandbox_decode_fdt(struct cros_ec_dev *dev, const void *blob)
+{
+ return 0;
+}
+
+void cros_ec_check_keyboard(struct cros_ec_dev *dev)
+{
+ struct ec_state *ec = &s_state;
+ ulong start;
+
+ printf("Press keys for EC to detect on reset (ESC=recovery)...");
+ start = get_timer(0);
+ while (get_timer(start) < 1000)
+ ;
+ putc('\n');
+ if (!sandbox_sdl_key_pressed(KEY_ESC)) {
+ ec->recovery_req = true;
+ printf(" - EC requests recovery\n");
+ }
+}
+
+/**
+ * Initialize sandbox EC emulation.
+ *
+ * @param dev CROS_EC device
+ * @param blob Device tree blob
+ * @return 0 if ok, -1 on error
+ */
+int cros_ec_sandbox_init(struct cros_ec_dev *dev, const void *blob)
+{
+ struct ec_state *ec = &s_state;
+ int node;
+ int err;
+
+ state = &s_state;
+ err = cros_ec_decode_ec_flash(blob, &ec->ec_config);
+ if (err)
+ return err;
+
+ node = fdtdec_next_compatible(blob, 0, COMPAT_GOOGLE_CROS_EC_KEYB);
+ if (node < 0) {
+ debug("%s: No cros_ec keyboard found\n", __func__);
+ } else if (keyscan_read_fdt_matrix(ec, blob, node)) {
+ debug("%s: Could not read key matrix\n", __func__);
+ return -1;
+ }
+
+ /* If we loaded EC data, check that the length matches */
+ if (ec->flash_data &&
+ ec->flash_data_len != ec->ec_config.flash.length) {
+ printf("EC data length is %x, expected %x, discarding data\n",
+ ec->flash_data_len, ec->ec_config.flash.length);
+ os_free(ec->flash_data);
+ ec->flash_data = NULL;
+ }
+
+ /* Otherwise allocate the memory */
+ if (!ec->flash_data) {
+ ec->flash_data_len = ec->ec_config.flash.length;
+ ec->flash_data = os_malloc(ec->flash_data_len);
+ if (!ec->flash_data)
+ return -ENOMEM;
+ }
+
+ return 0;
+}
diff --git a/include/cros_ec.h b/include/cros_ec.h
index 84f9104..1b7c620 100644
--- a/include/cros_ec.h
+++ b/include/cros_ec.h
@@ -20,6 +20,7 @@ enum cros_ec_interface_t {
CROS_EC_IF_SPI,
CROS_EC_IF_I2C,
CROS_EC_IF_LPC, /* Intel Low Pin Count interface */
+ CROS_EC_IF_SANDBOX,
};
/* Our configuration information */
@@ -237,6 +238,7 @@ struct cros_ec_dev *board_get_cros_ec_dev(void);
int cros_ec_i2c_init(struct cros_ec_dev *dev, const void *blob);
int cros_ec_spi_init(struct cros_ec_dev *dev, const void *blob);
int cros_ec_lpc_init(struct cros_ec_dev *dev, const void *blob);
+int cros_ec_sandbox_init(struct cros_ec_dev *dev, const void *blob);
/**
* Read information from the fdt for the i2c cros_ec interface
@@ -257,6 +259,15 @@ int cros_ec_i2c_decode_fdt(struct cros_ec_dev *dev, const void *blob);
int cros_ec_spi_decode_fdt(struct cros_ec_dev *dev, const void *blob);
/**
+ * Read information from the fdt for the sandbox cros_ec interface
+ *
+ * @param dev CROS-EC device
+ * @param blob Device tree blob
+ * @return 0 if ok, -1 if we failed to read all required information
+ */
+int cros_ec_sandbox_decode_fdt(struct cros_ec_dev *dev, const void *blob);
+
+/**
* Check whether the LPC interface supports new-style commands.
*
* LPC has its own way of doing this, which involves checking LPC values
@@ -323,6 +334,8 @@ int cros_ec_spi_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
* @return number of bytes in response packet, or <0 on error
*/
int cros_ec_spi_packet(struct cros_ec_dev *dev, int out_bytes, int in_bytes);
+int cros_ec_sandbox_packet(struct cros_ec_dev *dev, int out_bytes,
+ int in_bytes);
/**
* Dump a block of data for a command.
@@ -480,4 +493,12 @@ int cros_ec_get_error(void);
*/
int cros_ec_decode_ec_flash(const void *blob, struct fdt_cros_ec *config);
+/**
+ * Check the current keyboard state, in case recovery mode is requested.
+ * This function is for sandbox only.
+ *
+ * @param ec CROS-EC device
+ */
+void cros_ec_check_keyboard(struct cros_ec_dev *dev);
+
#endif
diff --git a/include/fdtdec.h b/include/fdtdec.h
index aa695df..bcd2ee5 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -88,6 +88,7 @@ enum fdt_compat_id {
COMPAT_INFINEON_SLB9635_TPM, /* Infineon SLB9635 TPM */
COMPAT_INFINEON_SLB9645_TPM, /* Infineon SLB9645 TPM */
COMPAT_SAMSUNG_EXYNOS5_I2C, /* Exynos5 High Speed I2C Controller */
+ COMPAT_SANDBOX_HOST_EMULATION, /* Sandbox emulation of a function */
COMPAT_COUNT,
};
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index c54d97b..e0b8927 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -61,6 +61,7 @@ static const char * const compat_names[COMPAT_COUNT] = {
COMPAT(INFINEON_SLB9635_TPM, "infineon,slb9635-tpm"),
COMPAT(INFINEON_SLB9645_TPM, "infineon,slb9645-tpm"),
COMPAT(SAMSUNG_EXYNOS5_I2C, "samsung,exynos5-hsi2c"),
+ COMPAT(SANDBOX_HOST_EMULATION, "sandbox,host-emulation"),
};
const char *fdtdec_get_compatible(enum fdt_compat_id id)
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 19/31] sandbox: Plumb in Chrome OS EC emulation
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (18 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
Add board code to set up the Chrome OS EC on startup.
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
board/sandbox/sandbox/sandbox.c | 31 ++++++++++++++++++++++++++++++-
1 file changed, 30 insertions(+), 1 deletion(-)
diff --git a/board/sandbox/sandbox/sandbox.c b/board/sandbox/sandbox/sandbox.c
index 95efaff..eb560ec 100644
--- a/board/sandbox/sandbox/sandbox.c
+++ b/board/sandbox/sandbox/sandbox.c
@@ -4,7 +4,7 @@
*/
#include <common.h>
-
+#include <cros_ec.h>
#include <os.h>
/*
@@ -28,3 +28,32 @@ int dram_init(void)
gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
return 0;
}
+
+int arch_early_init_r(void)
+{
+#ifdef CONFIG_CROS_EC
+ if (cros_ec_board_init()) {
+ printf("%s: Failed to init EC\n", __func__);
+ return 0;
+ }
+#endif
+
+ return 0;
+}
+
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+ if (cros_ec_get_error()) {
+ /* Force console on */
+ gd->flags &= ~GD_FLG_SILENT;
+
+ printf("cros-ec communications failure %d\n",
+ cros_ec_get_error());
+ puts("\nPlease reset with Power+Refresh\n\n");
+ panic("Cannot init cros-ec device");
+ return -1;
+ }
+ return 0;
+}
+#endif
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 20/31] cros_ec: Implement I2C pass-through
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (19 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
The Chrome EC has a feature where you can access its I2C buses through a
pass-through arrangement. Add a command to support this, and export the
function for it also.
Reviewed-by: Vadim Bendebury <vbendeb@google.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
drivers/misc/cros_ec.c | 270 ++++++++++++++++++++++++++++++++++++++++++++++++-
include/cros_ec.h | 14 +++
2 files changed, 282 insertions(+), 2 deletions(-)
diff --git a/drivers/misc/cros_ec.c b/drivers/misc/cros_ec.c
index 7e8c58f..068373b 100644
--- a/drivers/misc/cros_ec.c
+++ b/drivers/misc/cros_ec.c
@@ -1197,6 +1197,87 @@ int cros_ec_decode_ec_flash(const void *blob, struct fdt_cros_ec *config)
return 0;
}
+int cros_ec_i2c_xfer(struct cros_ec_dev *dev, uchar chip, uint addr,
+ int alen, uchar *buffer, int len, int is_read)
+{
+ union {
+ struct ec_params_i2c_passthru p;
+ uint8_t outbuf[EC_PROTO2_MAX_PARAM_SIZE];
+ } params;
+ union {
+ struct ec_response_i2c_passthru r;
+ uint8_t inbuf[EC_PROTO2_MAX_PARAM_SIZE];
+ } response;
+ struct ec_params_i2c_passthru *p = ¶ms.p;
+ struct ec_response_i2c_passthru *r = &response.r;
+ struct ec_params_i2c_passthru_msg *msg = p->msg;
+ uint8_t *pdata;
+ int read_len, write_len;
+ int size;
+ int rv;
+
+ p->port = 0;
+
+ if (alen != 1) {
+ printf("Unsupported address length %d\n", alen);
+ return -1;
+ }
+ if (is_read) {
+ read_len = len;
+ write_len = alen;
+ p->num_msgs = 2;
+ } else {
+ read_len = 0;
+ write_len = alen + len;
+ p->num_msgs = 1;
+ }
+
+ size = sizeof(*p) + p->num_msgs * sizeof(*msg);
+ if (size + write_len > sizeof(params)) {
+ puts("Params too large for buffer\n");
+ return -1;
+ }
+ if (sizeof(*r) + read_len > sizeof(response)) {
+ puts("Read length too big for buffer\n");
+ return -1;
+ }
+
+ /* Create a message to write the register address and optional data */
+ pdata = (uint8_t *)p + size;
+ msg->addr_flags = chip;
+ msg->len = write_len;
+ pdata[0] = addr;
+ if (!is_read)
+ memcpy(pdata + 1, buffer, len);
+ msg++;
+
+ if (read_len) {
+ msg->addr_flags = chip | EC_I2C_FLAG_READ;
+ msg->len = read_len;
+ }
+
+ rv = ec_command(dev, EC_CMD_I2C_PASSTHRU, 0, p, size + write_len,
+ r, sizeof(*r) + read_len);
+ if (rv < 0)
+ return rv;
+
+ /* Parse response */
+ if (r->i2c_status & EC_I2C_STATUS_ERROR) {
+ printf("Transfer failed with status=0x%x\n", r->i2c_status);
+ return -1;
+ }
+
+ if (rv < sizeof(*r) + read_len) {
+ puts("Truncated read response\n");
+ return -1;
+ }
+
+ if (read_len)
+ memcpy(buffer, r->data, read_len);
+
+ return 0;
+}
+
#ifdef CONFIG_CMD_CROS_EC
/**
@@ -1252,6 +1333,187 @@ static int do_read_write(struct cros_ec_dev *dev, int is_write, int argc,
return 0;
}
+/**
+ * get_alen() - Small parser helper function to get address length
+ *
+ * Returns the address length.
+ */
+static uint get_alen(char *arg)
+{
+ int j;
+ int alen;
+
+ alen = 1;
+ for (j = 0; j < 8; j++) {
+ if (arg[j] == '.') {
+ alen = arg[j+1] - '0';
+ break;
+ } else if (arg[j] == '\0') {
+ break;
+ }
+ }
+ return alen;
+}
+
+#define DISP_LINE_LEN 16
+
+/*
+ * TODO(sjg@chromium.org): This code copied almost verbatim from cmd_i2c.c
+ * so we can remove it later.
+ */
+static int cros_ec_i2c_md(struct cros_ec_dev *dev, int flag, int argc,
+ char * const argv[])
+{
+ u_char chip;
+ uint addr, alen, length = 0x10;
+ int j, nbytes, linebytes;
+
+ if (argc < 2)
+ return CMD_RET_USAGE;
+
+ if (1 || (flag & CMD_FLAG_REPEAT) == 0) {
+ /*
+ * New command specified.
+ */
+
+ /*
+ * I2C chip address
+ */
+ chip = simple_strtoul(argv[0], NULL, 16);
+
+ /*
+ * I2C data address within the chip. This can be 1 or
+ * 2 bytes long. Some day it might be 3 bytes long :-).
+ */
+ addr = simple_strtoul(argv[1], NULL, 16);
+ alen = get_alen(argv[1]);
+ if (alen > 3)
+ return CMD_RET_USAGE;
+
+ /*
+ * If another parameter, it is the length to display.
+ * Length is the number of objects, not number of bytes.
+ */
+ if (argc > 2)
+ length = simple_strtoul(argv[2], NULL, 16);
+ }
+
+ /*
+ * Print the lines.
+ *
+ * We buffer all read data, so we can make sure data is read only
+ * once.
+ */
+ nbytes = length;
+ do {
+ unsigned char linebuf[DISP_LINE_LEN];
+ unsigned char *cp;
+
+ linebytes = (nbytes > DISP_LINE_LEN) ? DISP_LINE_LEN : nbytes;
+
+ if (cros_ec_i2c_xfer(dev, chip, addr, alen, linebuf, linebytes,
+ 1))
+ puts("Error reading the chip.\n");
+ else {
+ printf("%04x:", addr);
+ cp = linebuf;
+ for (j = 0; j < linebytes; j++) {
+ printf(" %02x", *cp++);
+ addr++;
+ }
+ puts(" ");
+ cp = linebuf;
+ for (j = 0; j < linebytes; j++) {
+ if ((*cp < 0x20) || (*cp > 0x7e))
+ puts(".");
+ else
+ printf("%c", *cp);
+ cp++;
+ }
+ putc('\n');
+ }
+ nbytes -= linebytes;
+ } while (nbytes > 0);
+
+ return 0;
+}
+
+static int cros_ec_i2c_mw(struct cros_ec_dev *dev, int flag, int argc,
+ char * const argv[])
+{
+ uchar chip;
+ ulong addr;
+ uint alen;
+ uchar byte;
+ int count;
+
+ if ((argc < 3) || (argc > 4))
+ return CMD_RET_USAGE;
+
+ /*
+ * Chip is always specified.
+ */
+ chip = simple_strtoul(argv[0], NULL, 16);
+
+ /*
+ * Address is always specified.
+ */
+ addr = simple_strtoul(argv[1], NULL, 16);
+ alen = get_alen(argv[1]);
+ if (alen > 3)
+ return CMD_RET_USAGE;
+
+ /*
+ * Value to write is always specified.
+ */
+ byte = simple_strtoul(argv[2], NULL, 16);
+
+ /*
+ * Optional count
+ */
+ if (argc == 4)
+ count = simple_strtoul(argv[3], NULL, 16);
+ else
+ count = 1;
+
+ while (count-- > 0) {
+ if (cros_ec_i2c_xfer(dev, chip, addr++, alen, &byte, 1, 0))
+ puts("Error writing the chip.\n");
+ /*
+ * Wait for the write to complete. The write can take
+ * up to 10mSec (we allow a little more time).
+ */
+/*
+ * No write delay with FRAM devices.
+ */
+#if !defined(CONFIG_SYS_I2C_FRAM)
+ udelay(11000);
+#endif
+ }
+
+ return 0;
+}
+
+/* Temporary code until we have driver model and can use the i2c command */
+static int cros_ec_i2c_passthrough(struct cros_ec_dev *dev, int flag,
+ int argc, char * const argv[])
+{
+ const char *cmd;
+
+ if (argc < 1)
+ return CMD_RET_USAGE;
+ cmd = *argv++;
+ argc--;
+ if (0 == strcmp("md", cmd))
+ cros_ec_i2c_md(dev, flag, argc, argv);
+ else if (0 == strcmp("mw", cmd))
+ cros_ec_i2c_mw(dev, flag, argc, argv);
+ else
+ return CMD_RET_USAGE;
+
+ return 0;
+}
+
static int do_cros_ec(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
struct cros_ec_dev *dev = last_dev;
@@ -1495,6 +1757,8 @@ static int do_cros_ec(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
debug("%s: Could not access LDO%d\n", __func__, index);
return ret;
}
+ } else if (0 == strcmp("i2c", cmd)) {
+ ret = cros_ec_i2c_passthrough(dev, flag, argc - 2, argv + 2);
} else {
return CMD_RET_USAGE;
}
@@ -1508,7 +1772,7 @@ static int do_cros_ec(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
}
U_BOOT_CMD(
- crosec, 5, 1, do_cros_ec,
+ crosec, 6, 1, do_cros_ec,
"CROS-EC utility command",
"init Re-init CROS-EC (done on startup automatically)\n"
"crosec id Read CROS-EC ID\n"
@@ -1525,6 +1789,8 @@ U_BOOT_CMD(
"crosec vbnvcontext [hexstring] Read [write] VbNvContext from EC\n"
"crosec ldo <idx> [<state>] Switch/Read LDO state\n"
"crosec test run tests on cros_ec\n"
- "crosec version Read CROS-EC version"
+ "crosec version Read CROS-EC version\n"
+ "crosec i2c md chip address[.0, .1, .2] [# of objects] - read from I2C passthru\n"
+ "crosec i2c mw chip address[.0, .1, .2] value [count] - write to I2C passthru (fill)"
);
#endif
diff --git a/include/cros_ec.h b/include/cros_ec.h
index 1b7c620..1e4d8db 100644
--- a/include/cros_ec.h
+++ b/include/cros_ec.h
@@ -501,4 +501,18 @@ int cros_ec_decode_ec_flash(const void *blob, struct fdt_cros_ec *config);
*/
void cros_ec_check_keyboard(struct cros_ec_dev *dev);
+/*
+ * Tunnel an I2C transfer to the EC
+ *
+ * @param dev CROS-EC device
+ * @param chip Chip address (7-bit I2C address)
+ * @param addr Register address to read/write
+ * @param alen Length of register address in bytes
+ * @param buffer Buffer containing data to read/write
+ * @param len Length of buffer
+ * @param is_read 1 if this is a read, 0 if this is a write
+ */
+int cros_ec_i2c_xfer(struct cros_ec_dev *dev, uchar chip, uint addr,
+ int alen, uchar *buffer, int len, int is_read);
+
#endif
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 21/31] sandbox: Add os_jump_to_image() to run another executable
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (20 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
For some tests it is useful to be able to run U-Boot again but pass on the
same memory contents. Add a function to achieve this.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
arch/sandbox/cpu/os.c | 89 +++++++++++++++++++++++++++++++++++++++++++++++++++
include/os.h | 19 +++++++++++
2 files changed, 108 insertions(+)
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index 2e2fc58..460ed88 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -438,3 +438,92 @@ int os_read_ram_buf(const char *fname)
return 0;
}
+
+static int make_exec(char *fname, const void *data, int size)
+{
+ int fd;
+
+ strcpy(fname, "/tmp/u-boot.jump.XXXXXX");
+ fd = mkstemp(fname);
+ if (fd < 0)
+ return -ENOENT;
+ if (write(fd, data, size) < 0)
+ return -EIO;
+ close(fd);
+ if (chmod(fname, 0777))
+ return -ENOEXEC;
+
+ return 0;
+}
+
+static int add_args(char ***argvp, const char *add_args[], int count)
+{
+ char **argv;
+ int argc;
+
+ for (argv = *argvp, argc = 0; (*argvp)[argc]; argc++)
+ ;
+
+ argv = malloc((argc + count + 1) * sizeof(char *));
+ if (!argv) {
+ printf("Out of memory for %d argv\n", count);
+ return -ENOMEM;
+ }
+ memcpy(argv, *argvp, argc * sizeof(char *));
+ memcpy(argv + argc, add_args, count * sizeof(char *));
+ argv[argc + count] = NULL;
+
+ *argvp = argv;
+ return 0;
+}
+
+int os_jump_to_image(const void *dest, int size)
+{
+ struct sandbox_state *state = state_get_current();
+ char fname[30], mem_fname[30];
+ int fd, err;
+ const char *extra_args[4];
+ char **argv = state->argv;
+#ifdef DEBUG
+ int argc, i;
+#endif
+
+ err = make_exec(fname, dest, size);
+ if (err)
+ return err;
+
+ strcpy(mem_fname, "/tmp/u-boot.mem.XXXXXX");
+ fd = mkstemp(mem_fname);
+ if (fd < 0)
+ return -ENOENT;
+ close(fd);
+ err = os_write_ram_buf(mem_fname);
+ if (err)
+ return err;
+
+ os_fd_restore();
+
+ extra_args[0] = "-j";
+ extra_args[1] = fname;
+ extra_args[2] = "-m";
+ extra_args[3] = mem_fname;
+ err = add_args(&argv, extra_args,
+ sizeof(extra_args) / sizeof(extra_args[0]));
+ if (err)
+ return err;
+
+#ifdef DEBUG
+ for (i = 0; argv[i]; i++)
+ printf("%d %s\n", i, argv[i]);
+#endif
+
+ if (state_uninit())
+ os_exit(2);
+
+ err = execv(fname, argv);
+ free(argv);
+ if (err)
+ return err;
+
+ return unlink(fname);
+}
diff --git a/include/os.h b/include/os.h
index d6d6e57..ac8c8bb 100644
--- a/include/os.h
+++ b/include/os.h
@@ -245,4 +245,23 @@ int os_write_ram_buf(const char *fname);
*/
int os_read_ram_buf(const char *fname);
+/**
+ * Jump to a new executable image
+ *
+ * This uses exec() to run a new executable image, after putting it in a
+ * temporary file. The same arguments and environment are passed to this
+ * new image, with the addition of:
+ *
+ * -j <filename> Specifies the filename the image was written to. The
+ * calling image may want to delete this at some point.
+ * -m <filename> Specifies the file containing the sandbox memory
+ * (ram_buf) from this image, so that the new image can
+ * have access to this. It also means that the original
+ * memory filename passed to U-Boot will be left intact.
+ *
+ * @param dest Buffer containing executable image
+ * @param size Size of buffer
+ */
+int os_jump_to_image(const void *dest, int size);
+
#endif
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 22/31] sandbox: Add -j option to indicate a jump from a previous U-Boot
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (21 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
In order to support the 'go' command we allow the jumping U-Boot to pass its
filename to the new U-Boot image. This can then be used to delete that image
if required.
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
arch/sandbox/cpu/start.c | 16 ++++++++++++++++
arch/sandbox/include/asm/state.h | 3 ++-
2 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index 1df21d4..2d19fe7 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -107,6 +107,22 @@ static int sandbox_cmdline_cb_interactive(struct sandbox_state *state,
SANDBOX_CMDLINE_OPT_SHORT(interactive, 'i', 0, "Enter interactive mode");
+static int sandbox_cmdline_cb_jump(struct sandbox_state *state,
+ const char *arg)
+{
+ state->jumped = 1;
+
+ /*
+ * TODO(sjg at chromium.org): Note this causes problems for gdb which
+ * wants to read debug data from the image.
+ *
+ * os_unlink(arg);
+ */
+
+ return 0;
+}
+SANDBOX_CMDLINE_OPT_SHORT(jump, 'j', 1, "Jumped from previous U-Boot");
+
static int sandbox_cmdline_cb_memory(struct sandbox_state *state,
const char *arg)
{
diff --git a/arch/sandbox/include/asm/state.h b/arch/sandbox/include/asm/state.h
index e8e4fea..304104e 100644
--- a/arch/sandbox/include/asm/state.h
+++ b/arch/sandbox/include/asm/state.h
@@ -30,7 +30,8 @@ struct sandbox_state {
enum exit_type_id exit_type; /* How we exited U-Boot */
const char *parse_err; /* Error to report from parsing */
int argc; /* Program arguments */
- char **argv;
+ char **argv; /* Command line arguments */
+ bool jumped; /* Jumped from previous U_Boot */
uint8_t *ram_buf; /* Emulated RAM buffer */
unsigned int ram_size; /* Size of RAM buffer */
const char *ram_buf_fname; /* Filename to use for RAM buffer */
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 23/31] sandbox: Add SDL library for LCD, keyboard, audio
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (22 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
SDL (Simple DirectMedia Layer - see www.libsdl.org) is a library which
provides simple graphics and sound features. It works under X11 and also
with a simple frame buffer interface. It is ideally suited to sandbox
U-Boot since it fits nicely with the low-level feature set required by
U-Boot. For example, U-Boot has its own font drawing routines, its own
keyboard processing and just needs raw sound output.
We can use SDL to provide emulation of these basic functions for sandbox.
This significantly expands the testing that is possible with sandbox.
Add a basic SDL library which we will use in future commits.
Tested-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
arch/sandbox/config.mk | 5 +
arch/sandbox/cpu/Makefile | 3 +
arch/sandbox/cpu/sdl.c | 341 +++++++++++++++++++++++++++++++++++++++++
arch/sandbox/include/asm/sdl.h | 118 ++++++++++++++
4 files changed, 467 insertions(+)
create mode 100644 arch/sandbox/cpu/sdl.c
create mode 100644 arch/sandbox/include/asm/sdl.h
diff --git a/arch/sandbox/config.mk b/arch/sandbox/config.mk
index 23b057e..87196d1 100644
--- a/arch/sandbox/config.mk
+++ b/arch/sandbox/config.mk
@@ -5,6 +5,11 @@ PLATFORM_CPPFLAGS += -DCONFIG_SANDBOX -D__SANDBOX__ -U_FORTIFY_SOURCE
PLATFORM_CPPFLAGS += -DCONFIG_ARCH_MAP_SYSMEM -DCONFIG_SYS_GENERIC_BOARD
PLATFORM_LIBS += -lrt
+ifdef CONFIG_SANDBOX_SDL
+PLATFORM_LIBS += $(shell sdl-config --libs)
+PLATFORM_CPPFLAGS += $(shell sdl-config --cflags)
+endif
+
# Support generic board on sandbox
__HAVE_ARCH_GENERIC_BOARD := y
diff --git a/arch/sandbox/cpu/Makefile b/arch/sandbox/cpu/Makefile
index 63deded..7d4410c 100644
--- a/arch/sandbox/cpu/Makefile
+++ b/arch/sandbox/cpu/Makefile
@@ -8,6 +8,7 @@
#
obj-y := cpu.o os.o start.o state.o
+obj-$(CONFIG_SANDBOX_SDL) += sdl.o
# os.c is build in the system environment, so needs standard includes
# CFLAGS_REMOVE_os.o cannot be used to drop header include path
@@ -17,3 +18,5 @@ cmd_cc_os.o = $(CC) $(filter-out -nostdinc, \
$(obj)/os.o: $(src)/os.c FORCE
$(call if_changed_dep,cc_os.o)
+$(obj)/sdl.o: $(src)/sdl.c FORCE
+ $(call if_changed_dep,cc_os.o)
diff --git a/arch/sandbox/cpu/sdl.c b/arch/sandbox/cpu/sdl.c
new file mode 100644
index 0000000..18dc7ed
--- /dev/null
+++ b/arch/sandbox/cpu/sdl.c
@@ -0,0 +1,341 @@
+/*
+ * Copyright (c) 2013 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <errno.h>
+#include <linux/input.h>
+#include <SDL/SDL.h>
+#include <sound.h>
+#include <asm/state.h>
+
+static struct sdl_info {
+ SDL_Surface *screen;
+ int width;
+ int height;
+ int depth;
+ int pitch;
+ uint frequency;
+ uint audio_pos;
+ uint audio_size;
+ uint8_t *audio_data;
+ bool audio_active;
+ bool inited;
+} sdl;
+
+static void sandbox_sdl_poll_events(void)
+{
+ /*
+ * We don't want to include common.h in this file since it uses
+ * system headers. So add a declation here.
+ */
+ extern void reset_cpu(unsigned long addr);
+ SDL_Event event;
+
+ while (SDL_PollEvent(&event)) {
+ switch (event.type) {
+ case SDL_QUIT:
+ puts("LCD window closed - quitting\n");
+ reset_cpu(1);
+ break;
+ }
+ }
+}
+
+static int sandbox_sdl_ensure_init(void)
+{
+ if (!sdl.inited) {
+ if (SDL_Init(0) < 0) {
+ printf("Unable to initialize SDL: %s\n",
+ SDL_GetError());
+ return -EIO;
+ }
+
+ atexit(SDL_Quit);
+
+ sdl.inited = true;
+ }
+ return 0;
+}
+
+int sandbox_sdl_init_display(int width, int height, int log2_bpp)
+{
+ struct sandbox_state *state = state_get_current();
+ int err;
+
+ if (!width || !state->show_lcd)
+ return 0;
+ err = sandbox_sdl_ensure_init();
+ if (err)
+ return err;
+ if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0) {
+ printf("Unable to initialize SDL LCD: %s\n", SDL_GetError());
+ return -EPERM;
+ }
+ SDL_WM_SetCaption("U-Boot", "U-Boot");
+
+ sdl.width = width;
+ sdl.height = height;
+ sdl.depth = 1 << log2_bpp;
+ sdl.pitch = sdl.width * sdl.depth / 8;
+ sdl.screen = SDL_SetVideoMode(width, height, 0, 0);
+ sandbox_sdl_poll_events();
+
+ return 0;
+}
+
+int sandbox_sdl_sync(void *lcd_base)
+{
+ SDL_Surface *frame;
+
+ frame = SDL_CreateRGBSurfaceFrom(lcd_base, sdl.width, sdl.height,
+ sdl.depth, sdl.pitch,
+ 0x1f << 11, 0x3f << 5, 0x1f << 0, 0);
+ SDL_BlitSurface(frame, NULL, sdl.screen, NULL);
+ SDL_FreeSurface(frame);
+ SDL_UpdateRect(sdl.screen, 0, 0, 0, 0);
+ sandbox_sdl_poll_events();
+
+ return 0;
+}
+
+#define NONE (-1)
+#define NUM_SDL_CODES (SDLK_UNDO + 1)
+
+static int16_t sdl_to_keycode[NUM_SDL_CODES] = {
+ /* 0 */
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, KEY_BACKSPACE, KEY_TAB,
+ NONE, NONE, NONE, KEY_ENTER, NONE,
+ NONE, NONE, NONE, NONE, KEY_POWER, /* use PAUSE as POWER */
+
+ /* 20 */
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, KEY_ESC, NONE, NONE,
+ NONE, NONE, KEY_SPACE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+
+ /* 40 */
+ NONE, NONE, NONE, NONE, KEY_COMMA,
+ KEY_MINUS, KEY_DOT, KEY_SLASH, KEY_0, KEY_1,
+ KEY_2, KEY_3, KEY_4, KEY_5, KEY_6,
+ KEY_7, KEY_8, KEY_9, NONE, KEY_SEMICOLON,
+
+ /* 60 */
+ NONE, KEY_EQUAL, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+
+ /* 80 */
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, KEY_BACKSLASH, NONE, NONE,
+ NONE, KEY_GRAVE, KEY_A, KEY_B, KEY_C,
+
+ /* 100 */
+ KEY_D, KEY_E, KEY_F, KEY_G, KEY_H,
+ KEY_I, KEY_J, KEY_K, KEY_L, KEY_M,
+ KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R,
+ KEY_S, KEY_T, KEY_U, KEY_V, KEY_W,
+
+ /* 120 */
+ KEY_X, KEY_Y, KEY_Z, NONE, NONE,
+ NONE, NONE, KEY_DELETE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+
+ /* 140 */
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+
+ /* 160 */
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+
+ /* 180 */
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+
+ /* 200 */
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+
+ /* 220 */
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+
+ /* 240 */
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+ NONE, KEY_KP0, KEY_KP1, KEY_KP2, KEY_KP3,
+
+ /* 260 */
+ KEY_KP4, KEY_KP5, KEY_KP6, KEY_KP7, KEY_KP8,
+ KEY_KP9, KEY_KPDOT, KEY_KPSLASH, KEY_KPASTERISK, KEY_KPMINUS,
+ KEY_KPPLUS, KEY_KPENTER, KEY_KPEQUAL, KEY_UP, KEY_DOWN,
+ KEY_RIGHT, KEY_LEFT, KEY_INSERT, KEY_HOME, KEY_END,
+
+ /* 280 */
+ KEY_PAGEUP, KEY_PAGEDOWN, KEY_F1, KEY_F2, KEY_F3,
+ KEY_F4, KEY_F5, KEY_F6, KEY_F7, KEY_F8,
+ KEY_F9, KEY_F10, KEY_F11, KEY_F12, NONE,
+ NONE, NONE, NONE, NONE, NONE,
+
+ /* 300 */
+ KEY_NUMLOCK, KEY_CAPSLOCK, KEY_SCROLLLOCK, KEY_RIGHTSHIFT,
+ KEY_LEFTSHIFT,
+ KEY_RIGHTCTRL, KEY_LEFTCTRL, KEY_RIGHTALT, KEY_LEFTALT, KEY_RIGHTMETA,
+ KEY_LEFTMETA, NONE, KEY_FN, NONE, KEY_COMPOSE,
+ NONE, KEY_PRINT, KEY_SYSRQ, KEY_PAUSE, NONE,
+
+ /* 320 */
+ NONE, NONE, NONE,
+};
+
+int sandbox_sdl_scan_keys(int key[], int max_keys)
+{
+ Uint8 *keystate;
+ int i, count;
+
+ sandbox_sdl_poll_events();
+ keystate = SDL_GetKeyState(NULL);
+ for (i = count = 0; i < NUM_SDL_CODES; i++) {
+ if (count >= max_keys)
+ break;
+ else if (keystate[i])
+ key[count++] = sdl_to_keycode[i];
+ }
+
+ return count;
+}
+
+int sandbox_sdl_key_pressed(int keycode)
+{
+ int key[8]; /* allow up to 8 keys to be pressed at once */
+ int count;
+ int i;
+
+ count = sandbox_sdl_scan_keys(key, sizeof(key) / sizeof(key[0]));
+ for (i = 0; i < count; i++) {
+ if (key[i] == keycode)
+ return 0;
+ }
+
+ return -ENOENT;
+}
+
+void sandbox_sdl_fill_audio(void *udata, Uint8 *stream, int len)
+{
+ int avail;
+
+ avail = sdl.audio_size - sdl.audio_pos;
+ if (avail < len)
+ len = avail;
+
+ SDL_MixAudio(stream, sdl.audio_data + sdl.audio_pos, len,
+ SDL_MIX_MAXVOLUME);
+ sdl.audio_pos += len;
+
+ /* Loop if we are@the end */
+ if (sdl.audio_pos == sdl.audio_size)
+ sdl.audio_pos = 0;
+}
+
+int sandbox_sdl_sound_init(void)
+{
+ SDL_AudioSpec wanted;
+
+ if (sandbox_sdl_ensure_init())
+ return -1;
+
+ if (sdl.audio_active)
+ return 0;
+
+ /*
+ * At present all sandbox sounds crash. This is probably due to
+ * symbol name conflicts with U-Boot. We can remove the malloc()
+ * probles with:
+ *
+ * #define USE_DL_PREFIX
+ *
+ * and get this:
+ *
+ * Assertion 'e->pollfd->fd == e->fd' failed at pulse/mainloop.c:676,
+ * function dispatch_pollfds(). Aborting.
+ *
+ * The right solution is probably to make U-Boot's names private or
+ * link os.c and sdl.c against their libraries before liking with
+ * U-Boot. TBD. For now sound is disabled.
+ */
+ printf("(Warning: sandbox sound disabled)\n");
+ return 0;
+
+ /* Set the audio format */
+ wanted.freq = 22050;
+ wanted.format = AUDIO_S16;
+ wanted.channels = 1; /* 1 = mono, 2 = stereo */
+ wanted.samples = 1024; /* Good low-latency value for callback */
+ wanted.callback = sandbox_sdl_fill_audio;
+ wanted.userdata = NULL;
+
+ sdl.audio_size = sizeof(uint16_t) * wanted.freq;
+ sdl.audio_data = malloc(sdl.audio_size);
+ if (!sdl.audio_data) {
+ printf("%s: Out of memory\n", __func__);
+ return -1;
+ }
+ sdl.audio_pos = 0;
+
+ if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
+ printf("Unable to initialize SDL audio: %s\n", SDL_GetError());
+ goto err;
+ }
+
+ /* Open the audio device, forcing the desired format */
+ if (SDL_OpenAudio(&wanted, NULL) < 0) {
+ printf("Couldn't open audio: %s\n", SDL_GetError());
+ goto err;
+ }
+ sdl.audio_active = true;
+
+ return 0;
+
+err:
+ free(sdl.audio_data);
+ return -1;
+}
+
+int sandbox_sdl_sound_start(uint frequency)
+{
+ if (!sdl.audio_active)
+ return -1;
+ sdl.frequency = frequency;
+ sound_create_square_wave((unsigned short *)sdl.audio_data,
+ sdl.audio_size, frequency);
+ sdl.audio_pos = 0;
+ SDL_PauseAudio(0);
+
+ return 0;
+}
+
+int sandbox_sdl_sound_stop(void)
+{
+ if (!sdl.audio_active)
+ return -1;
+ SDL_PauseAudio(1);
+
+ return 0;
+}
diff --git a/arch/sandbox/include/asm/sdl.h b/arch/sandbox/include/asm/sdl.h
new file mode 100644
index 0000000..6edec1a
--- /dev/null
+++ b/arch/sandbox/include/asm/sdl.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2013 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __SANDBOX_SDL_H
+#define __SANDBOX_SDL_H
+
+#include <errno.h>
+
+#ifdef CONFIG_SANDBOX_SDL
+
+/**
+ * sandbox_sdl_init_display() - Set up SDL video ready for use
+ *
+ * @width: Window width in pixels
+ * @height Window height in pixels
+ * @log2_bpp: Log to base 2 of the number of bits per pixel. So a 32bpp
+ * display will pass 5, since 2*5 = 32
+ * @return 0 if OK, -ENODEV if no device, -EIO if SDL failed to initialize
+ * and -EPERM if the video failed to come up.
+ */
+int sandbox_sdl_init_display(int width, int height, int log2_bpp);
+
+/**
+ * sandbox_sdl_sync() - Sync current U-Boot LCD frame buffer to SDL
+ *
+ * This must be called periodically to update the screen for SDL so that the
+ * user can see it.
+ *
+ * @lcd_base: Base of frame buffer
+ * @return 0 if screen was updated, -ENODEV is there is no screen.
+ */
+int sandbox_sdl_sync(void *lcd_base);
+
+/**
+ * sandbox_sdl_scan_keys() - scan for pressed keys
+ *
+ * Works out which keys are pressed and returns a list
+ *
+ * @key: Array to receive keycodes
+ * @max_keys: Size of array
+ * @return number of keycodes found, 0 if none, -ENODEV if no keyboard
+ */
+int sandbox_sdl_scan_keys(int key[], int max_keys);
+
+/**
+ * sandbox_sdl_key_pressed() - check if a particular key is pressed
+ *
+ * @keycode: Keycode to check (KEY_... - see include/linux/input.h
+ * @return 0 if pressed, -ENOENT if not pressed. -ENODEV if keybord not
+ * available,
+ */
+int sandbox_sdl_key_pressed(int keycode);
+
+/**
+ * sandbox_sdl_sound_start() - start playing a sound
+ *
+ * @frequency: Frequency of sounds in Hertz
+ * @return 0 if OK, -ENODEV if no sound is available
+ */
+int sandbox_sdl_sound_start(uint frequency);
+
+/**
+ * sandbox_sdl_sound_stop() - stop playing a sound
+ *
+ * @return 0 if OK, -ENODEV if no sound is available
+ */
+int sandbox_sdl_sound_stop(void);
+
+/**
+ * sandbox_sdl_sound_init() - set up the sound system
+ *
+ * @return 0 if OK, -ENODEV if no sound is available
+ */
+int sandbox_sdl_sound_init(void);
+
+#else
+static inline int sandbox_sdl_init_display(int width, int height,
+ int log2_bpp)
+{
+ return -ENODEV;
+}
+
+static inline int sandbox_sdl_sync(void *lcd_base)
+{
+ return -ENODEV;
+}
+
+static inline int sandbox_sdl_scan_keys(int key[], int max_keys)
+{
+ return -ENODEV;
+}
+
+static inline int sandbox_sdl_key_pressed(int keycode)
+{
+ return -ENODEV;
+}
+
+static inline int sandbox_sdl_sound_start(uint frequency)
+{
+ return -ENODEV;
+}
+
+static inline int sandbox_sdl_sound_stop(void)
+{
+ return -ENODEV;
+}
+
+static inline int sandbox_sdl_sound_init(void)
+{
+ return -ENODEV;
+}
+
+#endif
+
+#endif
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 24/31] sandbox: Add a simple sound driver
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (23 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
Add a sound driver for sandbox, which uses SDL.
Tested-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
arch/sandbox/include/asm/arch-sandbox/sound.h | 14 ++++++++++++++
drivers/sound/Makefile | 2 ++
drivers/sound/sandbox.c | 23 +++++++++++++++++++++++
3 files changed, 39 insertions(+)
create mode 100644 arch/sandbox/include/asm/arch-sandbox/sound.h
create mode 100644 drivers/sound/sandbox.c
diff --git a/arch/sandbox/include/asm/arch-sandbox/sound.h b/arch/sandbox/include/asm/arch-sandbox/sound.h
new file mode 100644
index 0000000..a32e8c8
--- /dev/null
+++ b/arch/sandbox/include/asm/arch-sandbox/sound.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2013 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __SANDBOX_SOUND_H
+#define __SANDBOX_SOUND_H
+
+int sound_play(unsigned int msec, unsigned int frequency);
+
+int sound_init(const void *blob);
+
+#endif
diff --git a/drivers/sound/Makefile b/drivers/sound/Makefile
index 6d25292..3793f8a 100644
--- a/drivers/sound/Makefile
+++ b/drivers/sound/Makefile
@@ -7,5 +7,7 @@
obj-$(CONFIG_SOUND) += sound.o
obj-$(CONFIG_I2S) += samsung-i2s.o
+obj-$(CONFIG_I2S_SAMSUNG) += samsung-i2s.o
+obj-$(CONFIG_SOUND_SANDBOX) += sandbox.o
obj-$(CONFIG_SOUND_WM8994) += wm8994.o
obj-$(CONFIG_SOUND_MAX98095) += max98095.o
diff --git a/drivers/sound/sandbox.c b/drivers/sound/sandbox.c
new file mode 100644
index 0000000..fe5c9e9
--- /dev/null
+++ b/drivers/sound/sandbox.c
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2013 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/sound.h>
+#include <asm/sdl.h>
+
+int sound_play(uint32_t msec, uint32_t frequency)
+{
+ sandbox_sdl_sound_start(frequency);
+ mdelay(msec);
+ sandbox_sdl_sound_stop();
+
+ return 0;
+}
+
+int sound_init(const void *blob)
+{
+ return sandbox_sdl_sound_init();
+}
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 25/31] sandbox: Add LCD driver
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (24 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
Add a simple LCD driver which uses SDL to display the image. We update the
image regularly, while still providing for reasonable performance.
Adjust the common lcd code to support sandbox.
For command-line runs we do not want the LCD to be displayed, so add a
--show_lcd option to enable it.
Tested-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
arch/sandbox/cpu/start.c | 9 +++
arch/sandbox/include/asm/state.h | 1 +
arch/sandbox/include/asm/u-boot-sandbox.h | 3 +
board/sandbox/sandbox/sandbox.c | 18 ++++++
common/lcd.c | 21 +++++--
doc/device-tree-bindings/video/sandbox-fb.txt | 13 +++++
drivers/serial/sandbox.c | 4 ++
drivers/video/Makefile | 1 +
drivers/video/sandbox_sdl.c | 79 +++++++++++++++++++++++++++
include/fdtdec.h | 1 +
include/lcd.h | 3 +
lib/fdtdec.c | 1 +
12 files changed, 150 insertions(+), 4 deletions(-)
create mode 100644 doc/device-tree-bindings/video/sandbox-fb.txt
create mode 100644 drivers/video/sandbox_sdl.c
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index 2d19fe7..4d5569e 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -175,6 +175,15 @@ static int sandbox_cmdline_cb_ignore_missing(struct sandbox_state *state,
SANDBOX_CMDLINE_OPT_SHORT(ignore_missing, 'n', 0,
"Ignore missing state on read");
+static int sandbox_cmdline_cb_show_lcd(struct sandbox_state *state,
+ const char *arg)
+{
+ state->show_lcd = true;
+ return 0;
+}
+SANDBOX_CMDLINE_OPT_SHORT(show_lcd, 'l', 0,
+ "Show the sandbox LCD display");
+
int main(int argc, char *argv[])
{
struct sandbox_state *state;
diff --git a/arch/sandbox/include/asm/state.h b/arch/sandbox/include/asm/state.h
index 304104e..895b3a4 100644
--- a/arch/sandbox/include/asm/state.h
+++ b/arch/sandbox/include/asm/state.h
@@ -41,6 +41,7 @@ struct sandbox_state {
bool read_state; /* Read sandbox state on startup */
bool write_state; /* Write sandbox state on exit */
bool ignore_missing_state_on_read; /* No error if state missing */
+ bool show_lcd; /* Show LCD on start-up */
/* Pointer to information for each SPI bus/cs */
struct sandbox_spi_info spi[CONFIG_SANDBOX_SPI_MAX_BUS]
diff --git a/arch/sandbox/include/asm/u-boot-sandbox.h b/arch/sandbox/include/asm/u-boot-sandbox.h
index 5707c27..d2f1b65 100644
--- a/arch/sandbox/include/asm/u-boot-sandbox.h
+++ b/arch/sandbox/include/asm/u-boot-sandbox.h
@@ -25,4 +25,7 @@ int sandbox_main_loop_init(void);
int cleanup_before_linux(void);
+/* drivers/video/sandbox_sdl.c */
+int sandbox_lcd_sdl_early_init(void);
+
#endif /* _U_BOOT_SANDBOX_H_ */
diff --git a/board/sandbox/sandbox/sandbox.c b/board/sandbox/sandbox/sandbox.c
index eb560ec..b4fd8ee 100644
--- a/board/sandbox/sandbox/sandbox.c
+++ b/board/sandbox/sandbox/sandbox.c
@@ -6,6 +6,7 @@
#include <common.h>
#include <cros_ec.h>
#include <os.h>
+#include <asm/u-boot-sandbox.h>
/*
* Pointer to initial global data area
@@ -29,6 +30,23 @@ int dram_init(void)
return 0;
}
+#ifdef CONFIG_BOARD_EARLY_INIT_F
+int board_early_init_f(void)
+{
+#ifdef CONFIG_VIDEO_SANDBOX_SDL
+ int ret;
+
+ ret = sandbox_lcd_sdl_early_init();
+ if (ret) {
+ puts("Could not init sandbox LCD emulation\n");
+ return ret;
+ }
+#endif
+
+ return 0;
+}
+#endif
+
int arch_early_init_r(void)
{
#ifdef CONFIG_CROS_EC
diff --git a/common/lcd.c b/common/lcd.c
index aa81522..19b86b7 100644
--- a/common/lcd.c
+++ b/common/lcd.c
@@ -28,6 +28,8 @@
#include <watchdog.h>
#include <asm/unaligned.h>
#include <splash.h>
+#include <asm/io.h>
+#include <asm/unaligned.h>
#if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
defined(CONFIG_CPU_MONAHANS)
@@ -63,6 +65,10 @@
# endif
#endif
+#ifdef CONFIG_SANDBOX
+#include <asm/sdl.h>
+#endif
+
#ifndef CONFIG_LCD_ALIGNMENT
#define CONFIG_LCD_ALIGNMENT PAGE_SIZE
#endif
@@ -144,6 +150,13 @@ void lcd_sync(void)
if (lcd_flush_dcache)
flush_dcache_range((u32)lcd_base,
(u32)(lcd_base + lcd_get_size(&line_length)));
+#elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL)
+ static ulong last_sync;
+
+ if (get_timer(last_sync) > 10) {
+ sandbox_sdl_sync(lcd_base);
+ last_sync = get_timer(0);
+ }
#endif
}
@@ -403,7 +416,7 @@ int drv_lcd_init(void)
struct stdio_dev lcddev;
int rc;
- lcd_base = (void *) gd->fb_base;
+ lcd_base = map_sysmem(gd->fb_base, 0);
lcd_init(lcd_base); /* LCD initialization */
@@ -494,8 +507,8 @@ static int lcd_init(void *lcdbase)
* by setting up gd->fb_base. Check for this condition and fixup
* 'lcd_base' address.
*/
- if ((unsigned long)lcdbase != gd->fb_base)
- lcd_base = (void *)gd->fb_base;
+ if (map_to_sysmem(lcdbase) != gd->fb_base)
+ lcd_base = map_sysmem(gd->fb_base, 0);
debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
@@ -886,7 +899,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
ushort *cmap_base = NULL;
ushort i, j;
uchar *fb;
- bmp_image_t *bmp=(bmp_image_t *)bmp_image;
+ bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0);
uchar *bmap;
ushort padded_width;
unsigned long width, height, byte_width;
diff --git a/doc/device-tree-bindings/video/sandbox-fb.txt b/doc/device-tree-bindings/video/sandbox-fb.txt
new file mode 100644
index 0000000..eb91b30
--- /dev/null
+++ b/doc/device-tree-bindings/video/sandbox-fb.txt
@@ -0,0 +1,13 @@
+Sandbox LCD
+===========
+
+This uses the displaymode.txt binding except that only xres and yres are
+required properties.
+
+Example:
+
+ lcd {
+ compatible = "sandbox,lcd-sdl";
+ xres = <800>;
+ yres = <600>;
+ };
diff --git a/drivers/serial/sandbox.c b/drivers/serial/sandbox.c
index ffff5e1..c27b5b8 100644
--- a/drivers/serial/sandbox.c
+++ b/drivers/serial/sandbox.c
@@ -11,6 +11,7 @@
*/
#include <common.h>
+#include <lcd.h>
#include <os.h>
#include <serial.h>
#include <linux/compiler.h>
@@ -60,6 +61,9 @@ static int sandbox_serial_tstc(void)
ssize_t count;
os_usleep(100);
+#ifdef CONFIG_LCD
+ lcd_sync();
+#endif
if (next_index == serial_buf_read)
return 1; /* buffer full */
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index a7f5469..c527029 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -33,6 +33,7 @@ obj-$(CONFIG_VIDEO_MX3) += mx3fb.o videomodes.o
obj-$(CONFIG_VIDEO_IPUV3) += mxc_ipuv3_fb.o ipu_common.o ipu_disp.o
obj-$(CONFIG_VIDEO_MXS) += mxsfb.o videomodes.o
obj-$(CONFIG_VIDEO_OMAP3) += omap3_dss.o
+obj-$(CONFIG_VIDEO_SANDBOX_SDL) += sandbox_sdl.o
obj-$(CONFIG_VIDEO_SED13806) += sed13806.o
obj-$(CONFIG_VIDEO_SM501) += sm501.o
obj-$(CONFIG_VIDEO_SMI_LYNXEM) += smiLynxEM.o videomodes.o
diff --git a/drivers/video/sandbox_sdl.c b/drivers/video/sandbox_sdl.c
new file mode 100644
index 0000000..ba4578e
--- /dev/null
+++ b/drivers/video/sandbox_sdl.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2013 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <fdtdec.h>
+#include <lcd.h>
+#include <malloc.h>
+#include <asm/sdl.h>
+#include <asm/u-boot-sandbox.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+enum {
+ /* Maximum LCD size we support */
+ LCD_MAX_WIDTH = 1366,
+ LCD_MAX_HEIGHT = 768,
+ LCD_MAX_LOG2_BPP = 4, /* 2^4 = 16 bpp */
+};
+
+vidinfo_t panel_info;
+
+void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue)
+{
+}
+
+void lcd_ctrl_init(void *lcdbase)
+{
+ /*
+ * Allocate memory to keep BMP color conversion map. This is required
+ * for 8 bit BMPs only (hence 256 colors). If malloc fails - keep
+ * going, it is not even clear if displyaing the bitmap will be
+ * required on the way up.
+ */
+ panel_info.cmap = malloc(256 * NBITS(panel_info.vl_bpix) / 8);
+}
+
+void lcd_enable(void)
+{
+ if (sandbox_sdl_init_display(panel_info.vl_col, panel_info.vl_row,
+ panel_info.vl_bpix))
+ puts("LCD init failed\n");
+}
+
+int sandbox_lcd_sdl_early_init(void)
+{
+ const void *blob = gd->fdt_blob;
+ int xres = LCD_MAX_WIDTH, yres = LCD_MAX_HEIGHT;
+ int node;
+ int ret = 0;
+
+ /*
+ * The code in common/lcd.c does not cope with not being able to
+ * set up a frame buffer. It will just happily keep writing to
+ * invalid memory. So here we make sure that at least some buffer
+ * is available even if it actually won't be displayed.
+ */
+ node = fdtdec_next_compatible(blob, 0, COMPAT_SANDBOX_LCD_SDL);
+ if (node >= 0) {
+ xres = fdtdec_get_int(blob, node, "xres", LCD_MAX_WIDTH);
+ yres = fdtdec_get_int(blob, node, "yres", LCD_MAX_HEIGHT);
+ if (xres < 0 || xres > LCD_MAX_WIDTH) {
+ xres = LCD_MAX_WIDTH;
+ ret = -EINVAL;
+ }
+ if (yres < 0 || yres > LCD_MAX_HEIGHT) {
+ yres = LCD_MAX_HEIGHT;
+ ret = -EINVAL;
+ }
+ }
+
+ panel_info.vl_col = xres;
+ panel_info.vl_row = yres;
+ panel_info.vl_bpix = LCD_COLOR16;
+
+ return ret;
+}
diff --git a/include/fdtdec.h b/include/fdtdec.h
index bcd2ee5..6e859ce 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -89,6 +89,7 @@ enum fdt_compat_id {
COMPAT_INFINEON_SLB9645_TPM, /* Infineon SLB9645 TPM */
COMPAT_SAMSUNG_EXYNOS5_I2C, /* Exynos5 High Speed I2C Controller */
COMPAT_SANDBOX_HOST_EMULATION, /* Sandbox emulation of a function */
+ COMPAT_SANDBOX_LCD_SDL, /* Sandbox LCD emulation with SDL */
COMPAT_COUNT,
};
diff --git a/include/lcd.h b/include/lcd.h
index d06d6f1..5f84cd3 100644
--- a/include/lcd.h
+++ b/include/lcd.h
@@ -313,6 +313,9 @@ int lcd_get_size(int *line_length);
int lcd_dt_simplefb_add_node(void *blob);
int lcd_dt_simplefb_enable_existing_node(void *blob);
+/* Update the LCD / flush the cache */
+void lcd_sync(void);
+
/************************************************************************/
/* ** BITMAP DISPLAY SUPPORT */
/************************************************************************/
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index e0b8927..f65ab4f 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -62,6 +62,7 @@ static const char * const compat_names[COMPAT_COUNT] = {
COMPAT(INFINEON_SLB9645_TPM, "infineon,slb9645-tpm"),
COMPAT(SAMSUNG_EXYNOS5_I2C, "samsung,exynos5-hsi2c"),
COMPAT(SANDBOX_HOST_EMULATION, "sandbox,host-emulation"),
+ COMPAT(SANDBOX_LCD_SDL, "sandbox,lcd-sdl"),
};
const char *fdtdec_get_compatible(enum fdt_compat_id id)
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 26/31] sound: Move Samsung-specific code into its own file
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (25 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
The i2s code is in fact Samsung-specific, but there might be other
implementation. Move this code into its own file. This makes it slightly
more obviously how to adjust the code to support another SoC, when someone
takes this task on.
Also drop non-FDT support, since it isn't used on Exynos 5.
Tested-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
drivers/sound/Makefile | 2 +-
drivers/sound/sound-i2s.c | 208 +++++++++++++++++++++++++++++++++++++
drivers/sound/sound.c | 221 +---------------------------------------
include/configs/exynos5250-dt.h | 1 +
include/sound.h | 9 ++
5 files changed, 220 insertions(+), 221 deletions(-)
create mode 100644 drivers/sound/sound-i2s.c
diff --git a/drivers/sound/Makefile b/drivers/sound/Makefile
index 3793f8a..981ed61 100644
--- a/drivers/sound/Makefile
+++ b/drivers/sound/Makefile
@@ -6,7 +6,7 @@
#
obj-$(CONFIG_SOUND) += sound.o
-obj-$(CONFIG_I2S) += samsung-i2s.o
+obj-$(CONFIG_I2S) += sound-i2s.o
obj-$(CONFIG_I2S_SAMSUNG) += samsung-i2s.o
obj-$(CONFIG_SOUND_SANDBOX) += sandbox.o
obj-$(CONFIG_SOUND_WM8994) += wm8994.o
diff --git a/drivers/sound/sound-i2s.c b/drivers/sound/sound-i2s.c
new file mode 100644
index 0000000..749bbbd
--- /dev/null
+++ b/drivers/sound/sound-i2s.c
@@ -0,0 +1,208 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics
+ * R. Chandrasekar <rcsekar@samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <malloc.h>
+#include <common.h>
+#include <asm/io.h>
+#include <libfdt.h>
+#include <fdtdec.h>
+#include <i2c.h>
+#include <i2s.h>
+#include <sound.h>
+#include <asm/arch/sound.h>
+#include "wm8994.h"
+#include "max98095.h"
+
+/* defines */
+#define SOUND_400_HZ 400
+#define SOUND_BITS_IN_BYTE 8
+
+static struct i2stx_info g_i2stx_pri;
+
+/*
+ * get_sound_i2s_values gets values for i2s parameters
+ *
+ * @param i2stx_info i2s transmitter transfer param structure
+ * @param blob FDT blob if enabled else NULL
+ */
+static int get_sound_i2s_values(struct i2stx_info *i2s, const void *blob)
+{
+ int node;
+ int error = 0;
+ int base;
+
+ node = fdt_path_offset(blob, "i2s");
+ if (node <= 0) {
+ debug("EXYNOS_SOUND: No node for sound in device tree\n");
+ return -1;
+ }
+
+ /*
+ * Get the pre-defined sound specific values from FDT.
+ * All of these are expected to be correct otherwise
+ * wrong register values in i2s setup parameters
+ * may result in no sound play.
+ */
+ base = fdtdec_get_addr(blob, node, "reg");
+ if (base == FDT_ADDR_T_NONE) {
+ debug("%s: Missing i2s base\n", __func__);
+ return -1;
+ }
+ i2s->base_address = base;
+
+ i2s->audio_pll_clk = fdtdec_get_int(blob,
+ node, "samsung,i2s-epll-clock-frequency", -1);
+ error |= i2s->audio_pll_clk;
+ debug("audio_pll_clk = %d\n", i2s->audio_pll_clk);
+ i2s->samplingrate = fdtdec_get_int(blob,
+ node, "samsung,i2s-sampling-rate", -1);
+ error |= i2s->samplingrate;
+ debug("samplingrate = %d\n", i2s->samplingrate);
+ i2s->bitspersample = fdtdec_get_int(blob,
+ node, "samsung,i2s-bits-per-sample", -1);
+ error |= i2s->bitspersample;
+ debug("bitspersample = %d\n", i2s->bitspersample);
+ i2s->channels = fdtdec_get_int(blob,
+ node, "samsung,i2s-channels", -1);
+ error |= i2s->channels;
+ debug("channels = %d\n", i2s->channels);
+ i2s->rfs = fdtdec_get_int(blob,
+ node, "samsung,i2s-lr-clk-framesize", -1);
+ error |= i2s->rfs;
+ debug("rfs = %d\n", i2s->rfs);
+ i2s->bfs = fdtdec_get_int(blob,
+ node, "samsung,i2s-bit-clk-framesize", -1);
+ error |= i2s->bfs;
+ debug("bfs = %d\n", i2s->bfs);
+
+ i2s->id = fdtdec_get_int(blob, node, "samsung,i2s-id", -1);
+ error |= i2s->id;
+ debug("id = %d\n", i2s->id);
+
+ if (error == -1) {
+ debug("fail to get sound i2s node properties\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * Init codec
+ *
+ * @param blob FDT blob
+ * @param pi2s_tx i2s parameters required by codec
+ * @return int value, 0 for success
+ */
+static int codec_init(const void *blob, struct i2stx_info *pi2s_tx)
+{
+ int ret;
+ const char *codectype;
+ int node;
+
+ /* Get the node from FDT for sound */
+ node = fdt_path_offset(blob, "i2s");
+ if (node <= 0) {
+ debug("EXYNOS_SOUND: No node for sound in device tree\n");
+ debug("node = %d\n", node);
+ return -1;
+ }
+
+ /*
+ * Get the pre-defined sound codec specific values from FDT.
+ * All of these are expected to be correct otherwise sound
+ * can not be played
+ */
+ codectype = fdt_getprop(blob, node, "samsung,codec-type", NULL);
+ debug("device = %s\n", codectype);
+ if (!strcmp(codectype, "wm8994")) {
+ /* Check the codec type and initialise the same */
+ ret = wm8994_init(blob, pi2s_tx->id + 1,
+ pi2s_tx->samplingrate,
+ (pi2s_tx->samplingrate * (pi2s_tx->rfs)),
+ pi2s_tx->bitspersample, pi2s_tx->channels);
+ } else if (!strcmp(codectype, "max98095")) {
+ ret = max98095_init(blob, pi2s_tx->id + 1,
+ pi2s_tx->samplingrate,
+ (pi2s_tx->samplingrate * (pi2s_tx->rfs)),
+ pi2s_tx->bitspersample);
+ } else {
+ debug("%s: Unknown codec type %s\n", __func__, codectype);
+ return -1;
+ }
+
+ if (ret) {
+ debug("%s: Codec init failed\n", __func__);
+ return -1;
+ }
+
+ return 0;
+}
+
+int sound_init(const void *blob)
+{
+ int ret;
+ struct i2stx_info *pi2s_tx = &g_i2stx_pri;
+
+ /* Get the I2S Values */
+ if (get_sound_i2s_values(pi2s_tx, blob) < 0) {
+ debug(" FDT I2S values failed\n");
+ return -1;
+ }
+
+ if (codec_init(blob, pi2s_tx) < 0) {
+ debug(" Codec init failed\n");
+ return -1;
+ }
+
+ ret = i2s_tx_init(pi2s_tx);
+ if (ret) {
+ debug("%s: Failed to init i2c transmit: ret=%d\n", __func__,
+ ret);
+ return ret;
+ }
+
+
+ return ret;
+}
+
+int sound_play(uint32_t msec, uint32_t frequency)
+{
+ unsigned int *data;
+ unsigned long data_size;
+ unsigned int ret = 0;
+
+ /*Buffer length computation */
+ data_size = g_i2stx_pri.samplingrate * g_i2stx_pri.channels;
+ data_size *= (g_i2stx_pri.bitspersample / SOUND_BITS_IN_BYTE);
+ data = malloc(data_size);
+
+ if (data == NULL) {
+ debug("%s: malloc failed\n", __func__);
+ return -1;
+ }
+
+ sound_create_square_wave((unsigned short *)data,
+ data_size / sizeof(unsigned short),
+ frequency);
+
+ while (msec >= 1000) {
+ ret = i2s_transfer_tx_data(&g_i2stx_pri, data,
+ (data_size / sizeof(int)));
+ msec -= 1000;
+ }
+ if (msec) {
+ unsigned long size =
+ (data_size * msec) / (sizeof(int) * 1000);
+
+ ret = i2s_transfer_tx_data(&g_i2stx_pri, data, size);
+ }
+
+ free(data);
+
+ return ret;
+}
diff --git a/drivers/sound/sound.c b/drivers/sound/sound.c
index 9b8ce5a..9dda2db 100644
--- a/drivers/sound/sound.c
+++ b/drivers/sound/sound.c
@@ -5,193 +5,10 @@
* SPDX-License-Identifier: GPL-2.0+
*/
-#include <malloc.h>
#include <common.h>
-#include <asm/io.h>
-#include <libfdt.h>
-#include <fdtdec.h>
-#include <i2c.h>
-#include <i2s.h>
#include <sound.h>
-#include <asm/arch/sound.h>
-#include "wm8994.h"
-#include "max98095.h"
-/* defines */
-#define SOUND_400_HZ 400
-#define SOUND_BITS_IN_BYTE 8
-
-static struct i2stx_info g_i2stx_pri;
-
-/*
- * get_sound_i2s_values gets values for i2s parameters
- *
- * @param i2stx_info i2s transmitter transfer param structure
- * @param blob FDT blob if enabled else NULL
- */
-static int get_sound_i2s_values(struct i2stx_info *i2s, const void *blob)
-{
-#ifdef CONFIG_OF_CONTROL
- int node;
- int error = 0;
- int base;
-
- node = fdt_path_offset(blob, "i2s");
- if (node <= 0) {
- debug("EXYNOS_SOUND: No node for sound in device tree\n");
- return -1;
- }
-
- /*
- * Get the pre-defined sound specific values from FDT.
- * All of these are expected to be correct otherwise
- * wrong register values in i2s setup parameters
- * may result in no sound play.
- */
- base = fdtdec_get_addr(blob, node, "reg");
- if (base == FDT_ADDR_T_NONE) {
- debug("%s: Missing i2s base\n", __func__);
- return -1;
- }
- i2s->base_address = base;
-
- i2s->audio_pll_clk = fdtdec_get_int(blob,
- node, "samsung,i2s-epll-clock-frequency", -1);
- error |= i2s->audio_pll_clk;
- debug("audio_pll_clk = %d\n", i2s->audio_pll_clk);
- i2s->samplingrate = fdtdec_get_int(blob,
- node, "samsung,i2s-sampling-rate", -1);
- error |= i2s->samplingrate;
- debug("samplingrate = %d\n", i2s->samplingrate);
- i2s->bitspersample = fdtdec_get_int(blob,
- node, "samsung,i2s-bits-per-sample", -1);
- error |= i2s->bitspersample;
- debug("bitspersample = %d\n", i2s->bitspersample);
- i2s->channels = fdtdec_get_int(blob,
- node, "samsung,i2s-channels", -1);
- error |= i2s->channels;
- debug("channels = %d\n", i2s->channels);
- i2s->rfs = fdtdec_get_int(blob,
- node, "samsung,i2s-lr-clk-framesize", -1);
- error |= i2s->rfs;
- debug("rfs = %d\n", i2s->rfs);
- i2s->bfs = fdtdec_get_int(blob,
- node, "samsung,i2s-bit-clk-framesize", -1);
- error |= i2s->bfs;
- debug("bfs = %d\n", i2s->bfs);
-
- i2s->id = fdtdec_get_int(blob, node, "samsung,i2s-id", -1);
- error |= i2s->id;
- debug("id = %d\n", i2s->id);
-
- if (error == -1) {
- debug("fail to get sound i2s node properties\n");
- return -1;
- }
-#else
- i2s->base_address = samsung_get_base_i2s();
- i2s->audio_pll_clk = I2S_PLL_CLK;
- i2s->samplingrate = I2S_SAMPLING_RATE;
- i2s->bitspersample = I2S_BITS_PER_SAMPLE;
- i2s->channels = I2S_CHANNELS;
- i2s->rfs = I2S_RFS;
- i2s->bfs = I2S_BFS;
- i2s->id = 0;
-#endif
- return 0;
-}
-
-/*
- * Init codec
- *
- * @param blob FDT blob
- * @param pi2s_tx i2s parameters required by codec
- * @return int value, 0 for success
- */
-static int codec_init(const void *blob, struct i2stx_info *pi2s_tx)
-{
- int ret;
- const char *codectype;
-#ifdef CONFIG_OF_CONTROL
- int node;
-
- /* Get the node from FDT for sound */
- node = fdt_path_offset(blob, "i2s");
- if (node <= 0) {
- debug("EXYNOS_SOUND: No node for sound in device tree\n");
- debug("node = %d\n", node);
- return -1;
- }
-
- /*
- * Get the pre-defined sound codec specific values from FDT.
- * All of these are expected to be correct otherwise sound
- * can not be played
- */
- codectype = fdt_getprop(blob, node, "samsung,codec-type", NULL);
- debug("device = %s\n", codectype);
-#else
- codectype = AUDIO_CODEC;
-#endif
- if (!strcmp(codectype, "wm8994")) {
- /* Check the codec type and initialise the same */
- ret = wm8994_init(blob, pi2s_tx->id + 1,
- pi2s_tx->samplingrate,
- (pi2s_tx->samplingrate * (pi2s_tx->rfs)),
- pi2s_tx->bitspersample, pi2s_tx->channels);
- } else if (!strcmp(codectype, "max98095")) {
- ret = max98095_init(blob, pi2s_tx->id + 1,
- pi2s_tx->samplingrate,
- (pi2s_tx->samplingrate * (pi2s_tx->rfs)),
- pi2s_tx->bitspersample);
- } else {
- debug("%s: Unknown codec type %s\n", __func__, codectype);
- return -1;
- }
-
- if (ret) {
- debug("%s: Codec init failed\n", __func__);
- return -1;
- }
-
- return 0;
-}
-
-int sound_init(const void *blob)
-{
- int ret;
- struct i2stx_info *pi2s_tx = &g_i2stx_pri;
-
- /* Get the I2S Values */
- if (get_sound_i2s_values(pi2s_tx, blob) < 0) {
- debug(" FDT I2S values failed\n");
- return -1;
- }
-
- if (codec_init(blob, pi2s_tx) < 0) {
- debug(" Codec init failed\n");
- return -1;
- }
-
- ret = i2s_tx_init(pi2s_tx);
- if (ret) {
- debug("%s: Failed to init i2c transmit: ret=%d\n", __func__,
- ret);
- return ret;
- }
-
-
- return ret;
-}
-
-/*
- * Generates square wave sound data for 1 second
- *
- * @param data data buffer pointer
- * @param size size of the buffer
- * @param freq frequency of the wave
- */
-static void sound_prepare_buffer(unsigned short *data, int size, uint32_t freq)
+void sound_create_square_wave(unsigned short *data, int size, uint32_t freq)
{
const int sample = 48000;
const unsigned short amplitude = 16000; /* between 1 and 32767 */
@@ -218,39 +35,3 @@ static void sound_prepare_buffer(unsigned short *data, int size, uint32_t freq)
}
}
}
-
-int sound_play(uint32_t msec, uint32_t frequency)
-{
- unsigned int *data;
- unsigned long data_size;
- unsigned int ret = 0;
-
- /*Buffer length computation */
- data_size = g_i2stx_pri.samplingrate * g_i2stx_pri.channels;
- data_size *= (g_i2stx_pri.bitspersample / SOUND_BITS_IN_BYTE);
- data = malloc(data_size);
-
- if (data == NULL) {
- debug("%s: malloc failed\n", __func__);
- return -1;
- }
-
- sound_prepare_buffer((unsigned short *)data,
- data_size / sizeof(unsigned short), frequency);
-
- while (msec >= 1000) {
- ret = i2s_transfer_tx_data(&g_i2stx_pri, data,
- (data_size / sizeof(int)));
- msec -= 1000;
- }
- if (msec) {
- unsigned long size =
- (data_size * msec) / (sizeof(int) * 1000);
-
- ret = i2s_transfer_tx_data(&g_i2stx_pri, data, size);
- }
-
- free(data);
-
- return ret;
-}
diff --git a/include/configs/exynos5250-dt.h b/include/configs/exynos5250-dt.h
index 615df64..b7ff472 100644
--- a/include/configs/exynos5250-dt.h
+++ b/include/configs/exynos5250-dt.h
@@ -51,6 +51,7 @@
#define CONFIG_CMD_SOUND
#ifdef CONFIG_CMD_SOUND
#define CONFIG_SOUND
+#define CONFIG_I2S_SAMSUNG
#define CONFIG_I2S
#define CONFIG_SOUND_MAX98095
#define CONFIG_SOUND_WM8994
diff --git a/include/sound.h b/include/sound.h
index a06ab85..155e1b4 100644
--- a/include/sound.h
+++ b/include/sound.h
@@ -30,6 +30,15 @@ struct sound_codec_info {
};
/*
+ * Generates square wave sound data for 1 second
+ *
+ * @param data data buffer pointer
+ * @param size size of the buffer
+ * @param freq frequency of the wave
+ */
+void sound_create_square_wave(unsigned short *data, int size, uint32_t freq);
+
+/*
* Initialises audio sub system
* @param blob Pointer of device tree node or NULL if none.
* @return int value 0 for success, -1 for error
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 27/31] sandbox: Deal with conflicting getenv() for SDL
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (26 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
Unfortunately SDL requires getenv() to operate, since it wants to figure out
the display type. U-Boot has its own getenv() and they conflict. As a
work-around use #define to resolve the conflict.
A better but more complex solution might be to rename some U-Boot symbols
at link time. SDL audio is not functional at present, likely due to a related
issue.
Note: Vic Yank wrote a script for this, filed in crbug.com/271125.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
include/common.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/common.h b/include/common.h
index 033b5d9..bbcfd97 100644
--- a/include/common.h
+++ b/include/common.h
@@ -359,6 +359,11 @@ int do_ext2load(cmd_tbl_t *, int, int, char * const []);
int env_init (void);
void env_relocate (void);
int envmatch (uchar *, int);
+
+/* Avoid unfortunate conflict with libc's getenv() */
+#ifdef CONFIG_SANDBOX
+#define getenv uboot_getenv
+#endif
char *getenv (const char *);
int getenv_f (const char *name, char *buf, unsigned len);
ulong getenv_ulong(const char *name, int base, ulong default_val);
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 28/31] sandbox: Allow Ctrl-C to work in sandbox
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (27 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
It is useful for Cltl-C to be handled by U-Boot as it is on other boards.
But it is also useful to be able to terminate U-Boot with Ctrl-C.
Add an option to enable signals while in raw mode, and make this the
default. Add an option to leave the terminal cooked, which is useful for
redirecting output.
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
arch/sandbox/cpu/os.c | 13 +++++++------
arch/sandbox/cpu/start.c | 28 ++++++++++++++++++++++++++++
arch/sandbox/include/asm/state.h | 24 ++++++++++++++++++++++++
drivers/serial/sandbox.c | 6 +++++-
include/os.h | 6 +++++-
5 files changed, 69 insertions(+), 8 deletions(-)
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index 460ed88..6d5946e 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -99,21 +99,22 @@ void os_exit(int exit_code)
/* Restore tty state when we exit */
static struct termios orig_term;
+static bool term_setup;
static void os_fd_restore(void)
{
- tcsetattr(0, TCSANOW, &orig_term);
+ if (term_setup)
+ tcsetattr(0, TCSANOW, &orig_term);
}
/* Put tty into raw mode so <tab> and <ctrl+c> work */
-void os_tty_raw(int fd)
+void os_tty_raw(int fd, bool allow_sigs)
{
- static int setup = 0;
struct termios term;
- if (setup)
+ if (term_setup)
return;
- setup = 1;
+ term_setup = true;
/* If not a tty, don't complain */
if (tcgetattr(fd, &orig_term))
@@ -123,7 +124,7 @@ void os_tty_raw(int fd)
term.c_iflag = IGNBRK | IGNPAR;
term.c_oflag = OPOST | ONLCR;
term.c_cflag = CS8 | CREAD | CLOCAL;
- term.c_lflag = 0;
+ term.c_lflag = allow_sigs ? ISIG : 0;
if (tcsetattr(fd, TCSANOW, &term))
return;
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index 4d5569e..36dfc0a 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -184,6 +184,34 @@ static int sandbox_cmdline_cb_show_lcd(struct sandbox_state *state,
SANDBOX_CMDLINE_OPT_SHORT(show_lcd, 'l', 0,
"Show the sandbox LCD display");
+static const char *term_args[STATE_TERM_COUNT] = {
+ "raw-with-sigs",
+ "raw",
+ "cooked",
+};
+
+static int sandbox_cmdline_cb_terminal(struct sandbox_state *state,
+ const char *arg)
+{
+ int i;
+
+ for (i = 0; i < STATE_TERM_COUNT; i++) {
+ if (!strcmp(arg, term_args[i])) {
+ state->term_raw = i;
+ return 0;
+ }
+ }
+
+ printf("Unknown terminal setting '%s' (", arg);
+ for (i = 0; i < STATE_TERM_COUNT; i++)
+ printf("%s%s", i ? ", " : "", term_args[i]);
+ puts(")\n");
+
+ return 1;
+}
+SANDBOX_CMDLINE_OPT_SHORT(terminal, 't', 1,
+ "Set terminal to raw/cooked mode");
+
int main(int argc, char *argv[])
{
struct sandbox_state *state;
diff --git a/arch/sandbox/include/asm/state.h b/arch/sandbox/include/asm/state.h
index 895b3a4..56bd9a0 100644
--- a/arch/sandbox/include/asm/state.h
+++ b/arch/sandbox/include/asm/state.h
@@ -17,6 +17,29 @@ enum exit_type_id {
STATE_EXIT_POWER_OFF,
};
+/**
+ * Selects the behavior of the serial terminal.
+ *
+ * If Ctrl-C is processed by U-Boot, then the only way to quit sandbox is with
+ * the 'reset' command, or equivalent.
+ *
+ * If the terminal is cooked, then Ctrl-C will terminate U-Boot, and the
+ * command line will not be quite such a faithful emulation.
+ *
+ * Options are:
+ *
+ * raw-with-sigs - Raw, but allow signals (Ctrl-C will quit)
+ * raw - Terminal is always raw
+ * cooked - Terminal is always cooked
+ */
+enum state_terminal_raw {
+ STATE_TERM_RAW_WITH_SIGS, /* Default */
+ STATE_TERM_RAW,
+ STATE_TERM_COOKED,
+
+ STATE_TERM_COUNT,
+};
+
struct sandbox_spi_info {
const char *spec;
const struct sandbox_spi_emu_ops *ops;
@@ -42,6 +65,7 @@ struct sandbox_state {
bool write_state; /* Write sandbox state on exit */
bool ignore_missing_state_on_read; /* No error if state missing */
bool show_lcd; /* Show LCD on start-up */
+ enum state_terminal_raw term_raw; /* Terminal raw/cooked */
/* Pointer to information for each SPI bus/cs */
struct sandbox_spi_info spi[CONFIG_SANDBOX_SPI_MAX_BUS]
diff --git a/drivers/serial/sandbox.c b/drivers/serial/sandbox.c
index c27b5b8..51fd871 100644
--- a/drivers/serial/sandbox.c
+++ b/drivers/serial/sandbox.c
@@ -15,6 +15,7 @@
#include <os.h>
#include <serial.h>
#include <linux/compiler.h>
+#include <asm/state.h>
/*
*
@@ -31,7 +32,10 @@ static unsigned int serial_buf_read;
static int sandbox_serial_init(void)
{
- os_tty_raw(0);
+ struct sandbox_state *state = state_get_current();
+
+ if (state->term_raw != STATE_TERM_COOKED)
+ os_tty_raw(0, state->term_raw == STATE_TERM_RAW_WITH_SIGS);
return 0;
}
diff --git a/include/os.h b/include/os.h
index ac8c8bb..f647bb7 100644
--- a/include/os.h
+++ b/include/os.h
@@ -95,8 +95,12 @@ void os_exit(int exit_code) __attribute__((noreturn));
/**
* Put tty into raw mode to mimic serial console better
+ *
+ * @param fd File descriptor of stdin (normally 0)
+ * @param allow_sigs Allow Ctrl-C, Ctrl-Z to generate signals rather than
+ * be handled by U-Boot
*/
-void os_tty_raw(int fd);
+void os_tty_raw(int fd, bool allow_sigs);
/**
* Acquires some memory from the underlying os.
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 29/31] sandbox: Add options to clean up temporary files
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (28 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
When jumping from one sandbox U-Boot to another in sandbox, the RAM buffer
is preserved in the jump by using a temporary file. Add an option to tell
the receiving U-Boot to remove this file when it is no longer needed.
Similarly the old U-Boot image is left behind in this case. We cannot delete
it immediately since gdb cannot then find its debug symbols. Delete it just
before exiting.
Together these changes ensure that temporary files are removed both for
memory and U-Boot.
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
arch/sandbox/cpu/os.c | 8 +++++++-
arch/sandbox/cpu/start.c | 23 +++++++++++++++--------
arch/sandbox/cpu/state.c | 6 +++++-
arch/sandbox/include/asm/state.h | 3 ++-
include/os.h | 2 ++
5 files changed, 31 insertions(+), 11 deletions(-)
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index 6d5946e..320098a 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -92,6 +92,11 @@ int os_close(int fd)
return close(fd);
}
+int os_unlink(const char *fname)
+{
+ return unlink(fname);
+}
+
void os_exit(int exit_code)
{
exit(exit_code);
@@ -483,7 +488,7 @@ int os_jump_to_image(const void *dest, int size)
struct sandbox_state *state = state_get_current();
char fname[30], mem_fname[30];
int fd, err;
- const char *extra_args[4];
+ const char *extra_args[5];
char **argv = state->argv;
#ifdef DEBUG
int argc, i;
@@ -508,6 +513,7 @@ int os_jump_to_image(const void *dest, int size)
extra_args[1] = fname;
extra_args[2] = "-m";
extra_args[3] = mem_fname;
+ extra_args[4] = "--rm_memory";
err = add_args(&argv, extra_args,
sizeof(extra_args) / sizeof(extra_args[0]));
if (err)
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index 36dfc0a..aad3b8b 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -110,14 +110,8 @@ SANDBOX_CMDLINE_OPT_SHORT(interactive, 'i', 0, "Enter interactive mode");
static int sandbox_cmdline_cb_jump(struct sandbox_state *state,
const char *arg)
{
- state->jumped = 1;
-
- /*
- * TODO(sjg at chromium.org): Note this causes problems for gdb which
- * wants to read debug data from the image.
- *
- * os_unlink(arg);
- */
+ /* Remember to delete this U-Boot image later */
+ state->jumped_fname = arg;
return 0;
}
@@ -142,6 +136,15 @@ static int sandbox_cmdline_cb_memory(struct sandbox_state *state,
SANDBOX_CMDLINE_OPT_SHORT(memory, 'm', 1,
"Read/write ram_buf memory contents from file");
+static int sandbox_cmdline_cb_rm_memory(struct sandbox_state *state,
+ const char *arg)
+{
+ state->ram_buf_rm = true;
+
+ return 0;
+}
+SANDBOX_CMDLINE_OPT(rm_memory, 0, "Remove memory file after reading");
+
static int sandbox_cmdline_cb_state(struct sandbox_state *state,
const char *arg)
{
@@ -229,6 +232,10 @@ int main(int argc, char *argv[])
if (ret)
goto err;
+ /* Remove old memory file if required */
+ if (state->ram_buf_rm && state->ram_buf_fname)
+ os_unlink(state->ram_buf_fname);
+
/* Do pre- and post-relocation init */
board_init_f(0);
diff --git a/arch/sandbox/cpu/state.c b/arch/sandbox/cpu/state.c
index a145808..59adad6 100644
--- a/arch/sandbox/cpu/state.c
+++ b/arch/sandbox/cpu/state.c
@@ -365,7 +365,7 @@ int state_uninit(void)
state = &main_state;
- if (state->write_ram_buf) {
+ if (state->write_ram_buf && !state->ram_buf_rm) {
err = os_write_ram_buf(state->ram_buf_fname);
if (err) {
printf("Failed to write RAM buffer\n");
@@ -380,6 +380,10 @@ int state_uninit(void)
}
}
+ /* Delete this at the last moment so as not to upset gdb too much */
+ if (state->jumped_fname)
+ os_unlink(state->jumped_fname);
+
if (state->state_fdt)
os_free(state->state_fdt);
memset(state, '\0', sizeof(*state));
diff --git a/arch/sandbox/include/asm/state.h b/arch/sandbox/include/asm/state.h
index 56bd9a0..d17a82e 100644
--- a/arch/sandbox/include/asm/state.h
+++ b/arch/sandbox/include/asm/state.h
@@ -54,10 +54,11 @@ struct sandbox_state {
const char *parse_err; /* Error to report from parsing */
int argc; /* Program arguments */
char **argv; /* Command line arguments */
- bool jumped; /* Jumped from previous U_Boot */
+ const char *jumped_fname; /* Jumped from previous U_Boot */
uint8_t *ram_buf; /* Emulated RAM buffer */
unsigned int ram_size; /* Size of RAM buffer */
const char *ram_buf_fname; /* Filename to use for RAM buffer */
+ bool ram_buf_rm; /* Remove RAM buffer file after read */
bool write_ram_buf; /* Write RAM buffer on exit */
const char *state_fname; /* File containing sandbox state */
void *state_fdt; /* Holds saved state for sandbox */
diff --git a/include/os.h b/include/os.h
index f647bb7..6618621 100644
--- a/include/os.h
+++ b/include/os.h
@@ -268,4 +268,6 @@ int os_read_ram_buf(const char *fname);
*/
int os_jump_to_image(const void *dest, int size);
+int os_unlink(const char *fname);
+
#endif
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 30/31] sandbox: Add implementation of spi_setup_slave_fdt()
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (29 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
This function is needed when CONFIG_OF_SPI is defined.
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None
drivers/spi/sandbox_spi.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/spi/sandbox_spi.c b/drivers/spi/sandbox_spi.c
index 7895305..12e9bda 100644
--- a/drivers/spi/sandbox_spi.c
+++ b/drivers/spi/sandbox_spi.c
@@ -202,3 +202,16 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
return ret;
}
+
+/**
+ * Set up a new SPI slave for an fdt node
+ *
+ * @param blob Device tree blob
+ * @param node SPI peripheral node to use
+ * @return 0 if ok, -1 on error
+ */
+struct spi_slave *spi_setup_slave_fdt(const void *blob, int slave_node,
+ int spi_node)
+{
+ return NULL;
+}
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [U-Boot] [PATCH v2 31/31] sandbox: config: Enable cros_ec emulation and related items
2014-02-27 20:25 ` [U-Boot] " Simon Glass
` (30 preceding siblings ...)
(?)
@ 2014-02-27 20:26 ` Simon Glass
-1 siblings, 0 replies; 34+ messages in thread
From: Simon Glass @ 2014-02-27 20:26 UTC (permalink / raw)
To: u-boot
Enable the Chrome OS EC emulation for sandbox along with LCD, sound
expanded GPIOs and a few other options to make this work correctly.
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2:
- Rebase to master
- Update series to take account of patches now merges from original series
include/common.h | 1 +
include/configs/sandbox.h | 38 +++++++++++++++++++++++++++++++++-----
2 files changed, 34 insertions(+), 5 deletions(-)
diff --git a/include/common.h b/include/common.h
index bbcfd97..3838d6e 100644
--- a/include/common.h
+++ b/include/common.h
@@ -313,6 +313,7 @@ static inline int print_cpuinfo(void)
}
#endif
int update_flash_size(int flash_size);
+int arch_early_init_r(void);
/**
* Show the DRAM size in a board-specific way
diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h
index e674233..84acf5a 100644
--- a/include/configs/sandbox.h
+++ b/include/configs/sandbox.h
@@ -49,7 +49,7 @@
#define CONFIG_CMD_GPIO
#define CONFIG_SANDBOX_GPIO
-#define CONFIG_SANDBOX_GPIO_COUNT 20
+#define CONFIG_SANDBOX_GPIO_COUNT 128
#define CONFIG_CMD_GPT
#define CONFIG_PARTITION_UUIDS
@@ -72,6 +72,7 @@
#define CONFIG_CMDLINE_EDITING
#define CONFIG_COMMAND_HISTORY
#define CONFIG_AUTO_COMPLETE
+#define CONFIG_BOOTDELAY 3
#define CONFIG_ENV_SIZE 8192
#define CONFIG_ENV_IS_NOWHERE
@@ -82,6 +83,8 @@
#define CONFIG_CMD_SF_TEST
#define CONFIG_CMD_SPI
#define CONFIG_SPI_FLASH
+#define CONFIG_OF_SPI
+#define CONFIG_OF_SPI_FLASH
#define CONFIG_SPI_FLASH_SANDBOX
#define CONFIG_SPI_FLASH_STMICRO
#define CONFIG_SPI_FLASH_WINBOND
@@ -90,7 +93,9 @@
#define CONFIG_SYS_LOAD_ADDR 0x00000000
#define CONFIG_SYS_MEMTEST_START 0x00100000
#define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_MEMTEST_START + 0x1000)
-#define CONFIG_SYS_FDT_LOAD_ADDR 0x1000000
+#define CONFIG_SYS_FDT_LOAD_ADDR 0x100
+
+#define CONFIG_PHYSMEM
/* Size of our emulated memory */
#define CONFIG_SYS_SDRAM_BASE 0
@@ -118,13 +123,36 @@
#define CONFIG_SHA1
#define CONFIG_SHA256
+#define CONFIG_TPM_TIS_SANDBOX
+
#define CONFIG_CMD_SANDBOX
#define CONFIG_BOOTARGS ""
-#define CONFIG_EXTRA_ENV_SETTINGS "stdin=serial\0" \
- "stdout=serial\0" \
- "stderr=serial\0"
+#define CONFIG_CROS_EC
+#define CONFIG_CMD_CROS_EC
+#define CONFIG_CROS_EC_SANDBOX
+#define CONFIG_KEYBOARD
+#define CONFIG_CROS_EC_KEYB
+#define CONFIG_ARCH_EARLY_INIT_R
+#define CONFIG_BOARD_LATE_INIT
+
+#define CONFIG_SOUND
+#define CONFIG_SOUND_SANDBOX
+#define CONFIG_CMD_SOUND
+
+#define CONFIG_SANDBOX_SDL
+#define CONFIG_LCD
+#define CONFIG_VIDEO_SANDBOX_SDL
+#define CONFIG_CMD_BMP
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_CONSOLE_MUX
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV
+#define LCD_BPP LCD_COLOR16
+
+#define CONFIG_EXTRA_ENV_SETTINGS "stdin=serial,cros-ec-keyb\0" \
+ "stdout=serial,lcd\0" \
+ "stderr=serial,lcd\0"
#define CONFIG_GZIP_COMPRESSED
#define CONFIG_BZIP2
--
1.9.0.279.gdc9e3eb
^ permalink raw reply related [flat|nested] 34+ messages in thread
end of thread, other threads:[~2014-02-27 20:26 UTC | newest]
Thread overview: 34+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-02-27 20:25 [PATCH v2 0/31] Add additional sandbox features and infrastructure Simon Glass
2014-02-27 20:25 ` [U-Boot] " Simon Glass
2014-02-27 20:25 ` [U-Boot] [PATCH v2 01/31] Use a const pointer for map_to_sysmem() Simon Glass
2014-02-27 20:25 ` [U-Boot] [PATCH v2 02/31] sandbox: Increase memory size to 32MB Simon Glass
2014-02-27 20:25 ` [U-Boot] [PATCH v2 03/31] sandbox: Build a device tree file for sandbox Simon Glass
2014-02-27 20:25 ` [U-Boot] [PATCH v2 04/31] sandbox: Use os functions to read host device tree Simon Glass
[not found] ` <1393532785-9020-1-git-send-email-sjg-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
2014-02-27 20:25 ` [PATCH v2 05/31] sandbox: dts: Add display and keyboard to sandbox Simon Glass
2014-02-27 20:25 ` [U-Boot] " Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 06/31] cros_ec: Add an enum for the number of flash regions Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 07/31] cros_ec: Add a function for reading a flash map entry Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 08/31] cros_ec: Move EC interface into common library Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 09/31] cros_ec: Add a function for decoding the Chrome OS EC flashmap Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 10/31] cros_ec: Drop old EC version support from EC driver Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 11/31] cros_ec: Support systems with no EC interrupt Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 12/31] cros_ec: Move #ifdef to permit flash region access Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 13/31] cros_ec: Sync up with latest Chrome OS EC version Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 14/31] cros_ec: Clean up multiple EC protocol support Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 15/31] cros_ec: Add base support for protocol v3 Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 16/31] cros_ec: spi: Add support for EC protocol version 3 Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 17/31] cros_ec: Correct comparison between signed and unsigned numbers Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 18/31] cros_ec: sandbox: Add Chrome OS EC emulation Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 19/31] sandbox: Plumb in " Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 20/31] cros_ec: Implement I2C pass-through Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 21/31] sandbox: Add os_jump_to_image() to run another executable Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 22/31] sandbox: Add -j option to indicate a jump from a previous U-Boot Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 23/31] sandbox: Add SDL library for LCD, keyboard, audio Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 24/31] sandbox: Add a simple sound driver Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 25/31] sandbox: Add LCD driver Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 26/31] sound: Move Samsung-specific code into its own file Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 27/31] sandbox: Deal with conflicting getenv() for SDL Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 28/31] sandbox: Allow Ctrl-C to work in sandbox Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 29/31] sandbox: Add options to clean up temporary files Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 30/31] sandbox: Add implementation of spi_setup_slave_fdt() Simon Glass
2014-02-27 20:26 ` [U-Boot] [PATCH v2 31/31] sandbox: config: Enable cros_ec emulation and related items Simon Glass
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