From: Andre Przywara <andre.przywara@arm.com>
To: Will Deacon <will@kernel.org>,
Julien Thierry <julien.thierry.kdev@gmail.com>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>,
kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu,
Marc Zyngier <maz@kernel.org>,
Sami Mujawar <sami.mujawar@arm.com>
Subject: [PATCH kvmtool v2 05/22] hw/i8042: Clean up data types
Date: Thu, 25 Feb 2021 00:58:58 +0000 [thread overview]
Message-ID: <20210225005915.26423-6-andre.przywara@arm.com> (raw)
In-Reply-To: <20210225005915.26423-1-andre.przywara@arm.com>
The i8042 is clearly an 8-bit era device, so there is little room for
32-bit registers.
Clean up the data types used.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
---
hw/i8042.c | 26 +++++++++++++-------------
1 file changed, 13 insertions(+), 13 deletions(-)
diff --git a/hw/i8042.c b/hw/i8042.c
index 37a99a2d..7d1f9772 100644
--- a/hw/i8042.c
+++ b/hw/i8042.c
@@ -64,11 +64,11 @@
struct kbd_state {
struct kvm *kvm;
- char kq[QUEUE_SIZE]; /* Keyboard queue */
+ u8 kq[QUEUE_SIZE]; /* Keyboard queue */
int kread, kwrite; /* Indexes into the queue */
int kcount; /* number of elements in queue */
- char mq[QUEUE_SIZE];
+ u8 mq[QUEUE_SIZE];
int mread, mwrite;
int mcount;
@@ -82,7 +82,7 @@ struct kbd_state {
* Some commands (on port 0x64) have arguments;
* we store the command here while we wait for the argument
*/
- u32 write_cmd;
+ u8 write_cmd;
};
static struct kbd_state state;
@@ -173,9 +173,9 @@ static void kbd_write_command(struct kvm *kvm, u8 val)
/*
* Called when the OS reads from port 0x60 (PS/2 data)
*/
-static u32 kbd_read_data(void)
+static u8 kbd_read_data(void)
{
- u32 ret;
+ u8 ret;
int i;
if (state.kcount != 0) {
@@ -202,9 +202,9 @@ static u32 kbd_read_data(void)
/*
* Called when the OS read from port 0x64, the command port
*/
-static u32 kbd_read_status(void)
+static u8 kbd_read_status(void)
{
- return (u32)state.status;
+ return state.status;
}
/*
@@ -212,7 +212,7 @@ static u32 kbd_read_status(void)
* Things written here are generally arguments to commands previously
* written to port 0x64 and stored in state.write_cmd
*/
-static void kbd_write_data(u32 val)
+static void kbd_write_data(u8 val)
{
switch (state.write_cmd) {
case I8042_CMD_CTL_WCTR:
@@ -266,8 +266,8 @@ static void kbd_write_data(u32 val)
break;
default:
break;
- }
- break;
+ }
+ break;
case 0:
/* Just send the ID */
kbd_queue(RESPONSE_ACK);
@@ -304,8 +304,8 @@ static bool kbd_in(struct ioport *ioport, struct kvm_cpu *vcpu, u16 port, void *
break;
}
case I8042_DATA_REG: {
- u32 value = kbd_read_data();
- ioport__write32(data, value);
+ u8 value = kbd_read_data();
+ ioport__write8(data, value);
break;
}
case I8042_PORT_B_REG: {
@@ -328,7 +328,7 @@ static bool kbd_out(struct ioport *ioport, struct kvm_cpu *vcpu, u16 port, void
break;
}
case I8042_DATA_REG: {
- u32 value = ioport__read32(data);
+ u8 value = ioport__read8(data);
kbd_write_data(value);
break;
}
--
2.17.5
next prev parent reply other threads:[~2021-02-25 1:02 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-25 0:58 [PATCH kvmtool v2 00/22] Unify I/O port and MMIO trap handling Andre Przywara
2021-02-25 0:58 ` [PATCH kvmtool v2 01/22] ioport: Remove ioport__setup_arch() Andre Przywara
2021-03-02 18:02 ` Alexandru Elisei
2021-02-25 0:58 ` [PATCH kvmtool v2 02/22] hw/serial: Use device abstraction for FDT generator function Andre Przywara
2021-02-25 0:58 ` [PATCH kvmtool v2 03/22] ioport: Retire .generate_fdt_node functionality Andre Przywara
2021-02-25 0:58 ` [PATCH kvmtool v2 04/22] mmio: Extend handling to include ioport emulation Andre Przywara
2021-03-03 17:58 ` Alexandru Elisei
2021-03-15 12:24 ` Andre Przywara
2021-02-25 0:58 ` Andre Przywara [this message]
2021-02-25 0:58 ` [PATCH kvmtool v2 06/22] hw/i8042: Refactor trap handler Andre Przywara
2021-03-08 17:16 ` Alexandru Elisei
2021-02-25 0:59 ` [PATCH kvmtool v2 07/22] hw/i8042: Switch to new trap handlers Andre Przywara
2021-03-08 17:22 ` Alexandru Elisei
2021-02-25 0:59 ` [PATCH kvmtool v2 08/22] x86/ioport: Refactor " Andre Przywara
2021-03-09 11:49 ` Alexandru Elisei
2021-03-15 12:26 ` Andre Przywara
2021-02-25 0:59 ` [PATCH kvmtool v2 09/22] x86/ioport: Switch to new " Andre Przywara
2021-03-09 12:09 ` Alexandru Elisei
2021-03-15 12:26 ` Andre Przywara
2021-02-25 0:59 ` [PATCH kvmtool v2 10/22] hw/rtc: Refactor " Andre Przywara
2021-02-25 0:59 ` [PATCH kvmtool v2 11/22] hw/rtc: Switch to new trap handler Andre Przywara
2021-02-25 0:59 ` [PATCH kvmtool v2 12/22] hw/vesa: Switch trap handling to use MMIO handler Andre Przywara
2021-02-25 0:59 ` [PATCH kvmtool v2 13/22] hw/serial: Refactor trap handler Andre Przywara
2021-03-12 11:29 ` Alexandru Elisei
2021-03-15 12:26 ` Andre Przywara
2021-02-25 0:59 ` [PATCH kvmtool v2 14/22] hw/serial: Switch to new trap handlers Andre Przywara
2021-02-25 0:59 ` [PATCH kvmtool v2 15/22] vfio: Refactor ioport trap handler Andre Przywara
2021-03-09 14:21 ` Alexandru Elisei
2021-02-25 0:59 ` [PATCH kvmtool v2 16/22] vfio: Switch to new ioport trap handlers Andre Przywara
2021-02-25 0:59 ` [PATCH kvmtool v2 17/22] virtio: Switch trap handling to use MMIO handler Andre Przywara
2021-03-09 14:43 ` Alexandru Elisei
2021-02-25 0:59 ` [PATCH kvmtool v2 18/22] pci: " Andre Przywara
2021-02-25 0:59 ` [PATCH kvmtool v2 19/22] Remove ioport specific routines Andre Przywara
2021-03-09 15:13 ` Alexandru Elisei
2021-02-25 0:59 ` [PATCH kvmtool v2 20/22] arm: Reorganise and document memory map Andre Przywara
2021-03-09 15:46 ` Alexandru Elisei
2021-03-15 12:27 ` Andre Przywara
2021-02-25 0:59 ` [PATCH kvmtool v2 21/22] hw/serial: ARM/arm64: Use MMIO at higher addresses Andre Przywara
2021-03-09 16:02 ` Alexandru Elisei
2021-03-15 12:27 ` Andre Przywara
2021-02-25 0:59 ` [PATCH kvmtool v2 22/22] hw/rtc: " Andre Przywara
2021-03-09 16:06 ` Alexandru Elisei
2021-03-02 17:57 ` [PATCH kvmtool v2 00/22] Unify I/O port and MMIO trap handling Alexandru Elisei
2021-03-03 18:41 ` Andre Przywara
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