* [Qemu-devel] [PATCH 1/2] sun4m: Add Sun CG3 framebuffer and corresponding OpenBIOS FCode ROM
2013-10-15 20:19 [Qemu-devel] [PATCH 0/2] sun4m: Implement Sun CG3 framebuffer for QEMU Mark Cave-Ayland
@ 2013-10-15 20:19 ` Mark Cave-Ayland
2013-10-15 21:46 ` Peter Maydell
2013-10-15 20:19 ` [Qemu-devel] [PATCH 2/2] sun4m: Add Sun CG3 framebuffer initialisation function Mark Cave-Ayland
2013-10-26 8:53 ` [Qemu-devel] [PATCH 0/2] sun4m: Implement Sun CG3 framebuffer for QEMU Mark Cave-Ayland
2 siblings, 1 reply; 7+ messages in thread
From: Mark Cave-Ayland @ 2013-10-15 20:19 UTC (permalink / raw)
To: qemu-devel; +Cc: Blue Swirl, Bob Breuer, Mark Cave-Ayland, Artyom Tarasenko
The CG3 framebuffer is a simple 8-bit framebuffer for use with operating
systems such as early Solaris that do not have drivers for TCX.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Blue Swirl <blauwirbel@gmail.com>
CC: Bob Breuer <breuerr@mc.net>
CC: Artyom Tarasenko <atar4qemu@gmail.com>
---
Makefile | 2 +-
default-configs/sparc-softmmu.mak | 1 +
hw/display/Makefile.objs | 1 +
hw/display/cg3.c | 359 +++++++++++++++++++++++++++++++++++++
pc-bios/QEMU,cgthree.bin | Bin 0 -> 682 bytes
pc-bios/README | 4 +-
6 files changed, 364 insertions(+), 3 deletions(-)
create mode 100644 hw/display/cg3.c
create mode 100644 pc-bios/QEMU,cgthree.bin
diff --git a/Makefile b/Makefile
index 10ede3d..77b5cb5 100644
--- a/Makefile
+++ b/Makefile
@@ -287,7 +287,7 @@ ifdef INSTALL_BLOBS
BLOBS=bios.bin sgabios.bin vgabios.bin vgabios-cirrus.bin \
vgabios-stdvga.bin vgabios-vmware.bin vgabios-qxl.bin \
acpi-dsdt.aml q35-acpi-dsdt.aml \
-ppc_rom.bin openbios-sparc32 openbios-sparc64 openbios-ppc QEMU,tcx.bin \
+ppc_rom.bin openbios-sparc32 openbios-sparc64 openbios-ppc QEMU,tcx.bin QEMU,cgthree.bin \
pxe-e1000.rom pxe-eepro100.rom pxe-ne2k_pci.rom \
pxe-pcnet.rom pxe-rtl8139.rom pxe-virtio.rom \
efi-e1000.rom efi-eepro100.rom efi-ne2k_pci.rom \
diff --git a/default-configs/sparc-softmmu.mak b/default-configs/sparc-softmmu.mak
index 8fc93dd..ab796b3 100644
--- a/default-configs/sparc-softmmu.mak
+++ b/default-configs/sparc-softmmu.mak
@@ -10,6 +10,7 @@ CONFIG_EMPTY_SLOT=y
CONFIG_PCNET_COMMON=y
CONFIG_LANCE=y
CONFIG_TCX=y
+CONFIG_CG3=y
CONFIG_SLAVIO=y
CONFIG_CS4231=y
CONFIG_GRLIB=y
diff --git a/hw/display/Makefile.objs b/hw/display/Makefile.objs
index 540df82..7ed76a9 100644
--- a/hw/display/Makefile.objs
+++ b/hw/display/Makefile.objs
@@ -28,6 +28,7 @@ obj-$(CONFIG_OMAP) += omap_lcdc.o
obj-$(CONFIG_PXA2XX) += pxa2xx_lcd.o
obj-$(CONFIG_SM501) += sm501.o
obj-$(CONFIG_TCX) += tcx.o
+obj-$(CONFIG_CG3) += cg3.o
obj-$(CONFIG_VGA) += vga.o
diff --git a/hw/display/cg3.c b/hw/display/cg3.c
new file mode 100644
index 0000000..b09bf23
--- /dev/null
+++ b/hw/display/cg3.c
@@ -0,0 +1,359 @@
+/*
+ * QEMU CG3 Frame buffer
+ *
+ * Copyright (c) 2012 Bob Breuer
+ * Copyright (c) 2013 Mark Cave-Ayland
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu-common.h"
+#include "ui/console.h"
+#include "hw/sysbus.h"
+#include "hw/loader.h"
+
+/* #define DEBUG_CG3 */
+
+#define CG3_ROM_FILE "QEMU,cgthree.bin"
+#define FCODE_MAX_ROM_SIZE 0x10000
+
+#define CG3_REG_SIZE 0x20
+#define CG3_VRAM_SIZE 0x100000
+#define CG3_VRAM_OFFSET 0x800000
+
+#ifdef DEBUG_CG3
+#define DPRINTF(fmt, ...) \
+ printf("CG3: " fmt , ## __VA_ARGS__)
+#else
+#define DPRINTF(fmt, ...)
+#endif
+
+#define TYPE_CG3 "SUNW,cgthree"
+#define CG3(obj) OBJECT_CHECK(CG3State, (obj), TYPE_CG3)
+
+typedef struct CG3State {
+ SysBusDevice parent_obj;
+
+ QemuConsole *con;
+ qemu_irq irq;
+ hwaddr prom_addr;
+ MemoryRegion vram_mem;
+ MemoryRegion rom;
+ MemoryRegion reg;
+ uint32_t vram_size;
+ int full_update;
+ uint8_t regs[16];
+ uint8_t r[256], g[256], b[256];
+ uint16_t width, height, depth;
+ uint8_t dac_index, dac_state;
+} CG3State;
+
+static void cg3_update_display(void *opaque)
+{
+ CG3State *s = opaque;
+ DisplaySurface *surface = qemu_console_surface(s->con);
+ const uint8_t *pix;
+ uint32_t *data;
+ uint32_t dval;
+ int x, y, y_start;
+ unsigned int width, height;
+ ram_addr_t page, page_min, page_max;
+
+ if (surface_bits_per_pixel(surface) != 32) {
+ return;
+ }
+ width = s->width;
+ height = s->height;
+
+ y_start = -1;
+ page_min = -1;
+ page_max = 0;
+ page = 0;
+ pix = memory_region_get_ram_ptr(&s->vram_mem);
+ data = (uint32_t *)surface_data(surface);
+
+ for (y = 0; y < height; y++) {
+ int update = s->full_update;
+
+ page = (y * width) & TARGET_PAGE_MASK;
+ update |= memory_region_get_dirty(&s->vram_mem, page, page + width,
+ DIRTY_MEMORY_VGA);
+ if (update) {
+ if (y_start < 0) {
+ y_start = y;
+ }
+ if (page < page_min) {
+ page_min = page;
+ }
+ if (page > page_max) {
+ page_max = page;
+ }
+
+ for (x = 0; x < width; x++) {
+ dval = *pix++;
+ dval = (s->r[dval] << 16) | (s->g[dval] << 8) | s->b[dval];
+ *data++ = dval;
+ }
+ } else {
+ if (y_start >= 0) {
+ dpy_gfx_update(s->con, 0, y_start, s->width, y - y_start);
+ y_start = -1;
+ }
+ pix += width;
+ data += width;
+ }
+ }
+ s->full_update = 0;
+ if (y_start >= 0) {
+ dpy_gfx_update(s->con, 0, y_start, s->width, y - y_start);
+ }
+ if (page_max >= page_min) {
+ memory_region_reset_dirty(&s->vram_mem,
+ page_min, page_max - page_min + TARGET_PAGE_SIZE,
+ DIRTY_MEMORY_VGA);
+ }
+ /* vsync interrupt? */
+ if (s->regs[0] & 0x80) {
+ s->regs[1] |= 0x80;
+ qemu_irq_raise(s->irq);
+ }
+}
+
+static void cg3_invalidate_display(void *opaque)
+{
+ CG3State *s = opaque;
+
+ memory_region_set_dirty(&s->vram_mem, 0, CG3_VRAM_SIZE);
+}
+
+static uint64_t cg3_reg_read(void *opaque, hwaddr addr, unsigned size)
+{
+ CG3State *s = opaque;
+ int val;
+
+ switch (addr) {
+ case 0x10:
+ val = s->regs[0];
+ break;
+ case 0x11:
+ val = s->regs[1] | 0x71; /* monitor ID 7, board type = 1 (color) */
+ break;
+ case 0x12 ... 0x1f:
+ val = s->regs[addr - 0x10];
+ break;
+ default:
+ val = 0;
+ break;
+ }
+ DPRINTF("read %02x from reg %x\n", val, (int)addr);
+ return val;
+}
+
+static void cg3_reg_write(void *opaque, hwaddr addr, uint64_t val,
+ unsigned size)
+{
+ CG3State *s = opaque;
+ uint8_t regval;
+ int i;
+
+ DPRINTF("write %02lx to reg %x size %d\n", val, (int)addr, size);
+
+ switch (addr) {
+ case 0:
+ s->dac_index = val;
+ s->dac_state = 0;
+ break;
+ case 4:
+ /* This register can be written to as either a long word or a byte.
+ * According to the SBus specification, byte transfers are placed
+ * in bits 31-28 */
+ if (size == 1) {
+ val <<= 24;
+ }
+
+ for (i = 0; i < size; i++) {
+ regval = val >> 24;
+
+ switch (s->dac_state) {
+ case 0:
+ s->r[s->dac_index] = regval;
+ s->dac_state++;
+ break;
+ case 1:
+ s->g[s->dac_index] = regval;
+ s->dac_state++;
+ break;
+ case 2:
+ s->b[s->dac_index] = regval;
+ /* Index autoincrement */
+ s->dac_index = (s->dac_index + 1) & 255;
+ default:
+ s->dac_state = 0;
+ break;
+ }
+ val <<= 8;
+ }
+ s->full_update = 1;
+ break;
+ case 0x10:
+ s->regs[0] = val;
+ break;
+ case 0x11:
+ if (s->regs[1] & 0x80) {
+ /* clear interrupt */
+ s->regs[1] &= ~0x80;
+ qemu_irq_lower(s->irq);
+ }
+ break;
+ case 0x12 ... 0x1f:
+ s->regs[addr - 0x10] = val;
+ break;
+ default:
+ break;
+ }
+}
+
+static const MemoryRegionOps cg3_reg_ops = {
+ .read = cg3_reg_read,
+ .write = cg3_reg_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 1,
+ .max_access_size = 4,
+ },
+};
+
+static const GraphicHwOps cg3_ops = {
+ .invalidate = cg3_invalidate_display,
+ .gfx_update = cg3_update_display,
+};
+
+static int cg3_init1(SysBusDevice *dev)
+{
+ CG3State *s = CG3(dev);
+ int ret;
+ char *fcode_filename;
+
+ /* FCode ROM */
+ memory_region_init_ram(&s->rom, NULL, "cg3.prom", FCODE_MAX_ROM_SIZE);
+ vmstate_register_ram_global(&s->rom);
+ memory_region_set_readonly(&s->rom, true);
+ sysbus_init_mmio(dev, &s->rom);
+
+ fcode_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, CG3_ROM_FILE);
+ if (fcode_filename) {
+ ret = load_image_targphys(fcode_filename, s->prom_addr,
+ FCODE_MAX_ROM_SIZE);
+ }
+
+ if (ret < 0 || ret > FCODE_MAX_ROM_SIZE) {
+ fprintf(stderr, "cg3: could not load prom '%s'\n", CG3_ROM_FILE);
+ exit(1);
+ }
+
+ memory_region_init_io(&s->reg, NULL, &cg3_reg_ops, s, "cg3.reg",
+ CG3_REG_SIZE);
+ sysbus_init_mmio(dev, &s->reg);
+
+ memory_region_init_ram(&s->vram_mem, NULL, "cg3.vram", s->vram_size);
+ vmstate_register_ram_global(&s->vram_mem);
+ sysbus_init_mmio(dev, &s->vram_mem);
+
+ sysbus_init_irq(dev, &s->irq);
+
+ s->con = graphic_console_init(DEVICE(dev), &cg3_ops, s);
+ qemu_console_resize(s->con, s->width, s->height);
+
+ return 0;
+}
+
+static int vmstate_cg3_post_load(void *opaque, int version_id)
+{
+ CG3State *s = opaque;
+
+ cg3_invalidate_display(s);
+
+ return 0;
+}
+
+static const VMStateDescription vmstate_cg3 = {
+ .name = "cg3",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .post_load = vmstate_cg3_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT16(height, CG3State),
+ VMSTATE_UINT16(width, CG3State),
+ VMSTATE_UINT16(depth, CG3State),
+ VMSTATE_BUFFER(r, CG3State),
+ VMSTATE_BUFFER(g, CG3State),
+ VMSTATE_BUFFER(b, CG3State),
+ VMSTATE_UINT8(dac_index, CG3State),
+ VMSTATE_UINT8(dac_state, CG3State),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void cg3_reset(DeviceState *d)
+{
+ CG3State *s = CG3(d);
+
+ /* Initialize palette */
+ memset(s->r, 0, 256);
+ memset(s->g, 0, 256);
+ memset(s->b, 0, 256);
+
+ s->dac_state = 0;
+ s->full_update = 1;
+ qemu_irq_lower(s->irq);
+}
+
+static Property cg3_properties[] = {
+ DEFINE_PROP_HEX32("vram_size", CG3State, vram_size, -1),
+ DEFINE_PROP_UINT16("width", CG3State, width, -1),
+ DEFINE_PROP_UINT16("height", CG3State, height, -1),
+ DEFINE_PROP_UINT16("depth", CG3State, depth, -1),
+ DEFINE_PROP_HEX64("prom_addr", CG3State, prom_addr, -1),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void cg3_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+ k->init = cg3_init1;
+ dc->reset = cg3_reset;
+ dc->vmsd = &vmstate_cg3;
+ dc->props = cg3_properties;
+}
+
+static const TypeInfo cg3_info = {
+ .name = TYPE_CG3,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(CG3State),
+ .class_init = cg3_class_init,
+};
+
+static void cg3_register_types(void)
+{
+ type_register_static(&cg3_info);
+}
+
+type_init(cg3_register_types)
diff --git a/pc-bios/QEMU,cgthree.bin b/pc-bios/QEMU,cgthree.bin
new file mode 100644
index 0000000000000000000000000000000000000000..e2ecfc6f34edace2d39b411454768cd3a1366e71
GIT binary patch
literal 682
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zBUu~u=-%K3cn#iwS?2_onfbn%Z)SGq58l0EtZ`Q&lfN9MzqVOxx7k(PNme4BMoH#=
zivp3j-=iQ8k%<yv&-?!+LlMoxyv{cE{3sBsJanf~p4C*7s6`YDce>8Sfzs-#X)$;6
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p&(9|pu1Cq<Ec8>#38l*qW4qL?Gb_?8NwYAzA=bhnJgM-E{ROoYtgZk6
literal 0
HcmV?d00001
diff --git a/pc-bios/README b/pc-bios/README
index a61aa8b..62a076d 100644
--- a/pc-bios/README
+++ b/pc-bios/README
@@ -11,8 +11,8 @@
firmware implementation. The goal is to implement a 100% IEEE
1275-1994 (referred to as Open Firmware) compliant firmware.
The included images for PowerPC (for 32 and 64 bit PPC CPUs),
- Sparc32 (including QEMU,tcx.bin) and Sparc64 are built from OpenBIOS SVN
- revision 1229.
+ Sparc32 (including QEMU,tcx.bin and QEMU,cgthree.bin) and Sparc64 are built
+ from OpenBIOS SVN revision 1229.
- SLOF (Slimline Open Firmware) is a free IEEE 1275 Open Firmware
implementation for certain IBM POWER hardware. The sources are at
--
1.7.10.4
^ permalink raw reply related [flat|nested] 7+ messages in thread* [Qemu-devel] [PATCH 2/2] sun4m: Add Sun CG3 framebuffer initialisation function
2013-10-15 20:19 [Qemu-devel] [PATCH 0/2] sun4m: Implement Sun CG3 framebuffer for QEMU Mark Cave-Ayland
2013-10-15 20:19 ` [Qemu-devel] [PATCH 1/2] sun4m: Add Sun CG3 framebuffer and corresponding OpenBIOS FCode ROM Mark Cave-Ayland
@ 2013-10-15 20:19 ` Mark Cave-Ayland
2013-10-26 8:53 ` [Qemu-devel] [PATCH 0/2] sun4m: Implement Sun CG3 framebuffer for QEMU Mark Cave-Ayland
2 siblings, 0 replies; 7+ messages in thread
From: Mark Cave-Ayland @ 2013-10-15 20:19 UTC (permalink / raw)
To: qemu-devel; +Cc: Blue Swirl, Bob Breuer, Mark Cave-Ayland, Artyom Tarasenko
In order to allow the user to choose the framebuffer for sparc-softmmu, add
-vga tcx and -vga cg3 options to the QEMU command line. If no option is
specified, the default TCX framebuffer is used.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Blue Swirl <blauwirbel@gmail.com>
CC: Bob Breuer <breuerr@mc.net>
CC: Artyom Tarasenko <atar4qemu@gmail.com>
---
hw/sparc/sun4m.c | 60 +++++++++++++++++++++++++++++++++++++++++++++--
include/sysemu/sysemu.h | 1 +
vl.c | 24 +++++++++++++++++++
3 files changed, 83 insertions(+), 2 deletions(-)
diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c
index 94f7950..4c6c450 100644
--- a/hw/sparc/sun4m.c
+++ b/hw/sparc/sun4m.c
@@ -561,6 +561,31 @@ static void tcx_init(hwaddr addr, int vram_size, int width,
}
}
+static void cg3_init(hwaddr addr, qemu_irq irq, int vram_size, int width,
+ int height, int depth)
+{
+ DeviceState *dev;
+ SysBusDevice *s;
+
+ dev = qdev_create(NULL, "SUNW,cgthree");
+ qdev_prop_set_uint32(dev, "vram_size", vram_size);
+ qdev_prop_set_uint16(dev, "width", width);
+ qdev_prop_set_uint16(dev, "height", height);
+ qdev_prop_set_uint16(dev, "depth", depth);
+ qdev_prop_set_uint64(dev, "prom_addr", addr);
+ qdev_init_nofail(dev);
+ s = SYS_BUS_DEVICE(dev);
+
+ /* FCode ROM */
+ sysbus_mmio_map(s, 0, addr);
+ /* DAC */
+ sysbus_mmio_map(s, 1, addr + 0x400000ULL);
+ /* 8-bit plane */
+ sysbus_mmio_map(s, 2, addr + 0x800000ULL);
+
+ sysbus_connect_irq(s, 0, irq);
+}
+
/* NCR89C100/MACIO Internal ID register */
#define TYPE_MACIO_ID_REGISTER "macio_idreg"
@@ -918,8 +943,39 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef,
}
num_vsimms = 0;
if (num_vsimms == 0) {
- tcx_init(hwdef->tcx_base, 0x00100000, graphic_width, graphic_height,
- graphic_depth);
+ if (vga_interface_type == VGA_CG3) {
+ if (graphic_depth != 8) {
+ fprintf(stderr, "qemu: Unsupported depth: %d\n", graphic_depth);
+ exit(1);
+ }
+
+ if (!(graphic_width == 1024 && graphic_height == 768) &&
+ !(graphic_width == 1152 && graphic_height == 900)) {
+ fprintf(stderr, "qemu: Unsupported resolution: %d x %d\n",
+ graphic_width, graphic_height);
+ exit(1);
+ }
+
+ /* sbus irq 5 */
+ cg3_init(hwdef->tcx_base, slavio_irq[11], 0x00100000,
+ graphic_width, graphic_height, graphic_depth);
+ } else {
+ /* If no display specified, default to TCX */
+ if (graphic_depth != 8 && graphic_depth != 24) {
+ fprintf(stderr, "qemu: Unsupported depth: %d\n",
+ graphic_depth);
+ exit(1);
+ }
+
+ if (!(graphic_width == 1024 && graphic_height == 768)) {
+ fprintf(stderr, "qemu: Unsupported resolution: %d x %d\n",
+ graphic_width, graphic_height);
+ exit(1);
+ }
+
+ tcx_init(hwdef->tcx_base, 0x00100000, graphic_width, graphic_height,
+ graphic_depth);
+ }
}
for (i = num_vsimms; i < MAX_VSIMMS; i++) {
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index cd5791e..2698f6d 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -104,6 +104,7 @@ extern int autostart;
typedef enum {
VGA_NONE, VGA_STD, VGA_CIRRUS, VGA_VMWARE, VGA_XENFB, VGA_QXL,
+ VGA_TCX, VGA_CG3,
} VGAInterfaceType;
extern int vga_interface_type;
diff --git a/vl.c b/vl.c
index 7e1f408..5e71654 100644
--- a/vl.c
+++ b/vl.c
@@ -2082,6 +2082,16 @@ static bool qxl_vga_available(void)
return object_class_by_name("qxl-vga");
}
+static bool tcx_vga_available(void)
+{
+ return object_class_by_name("SUNW,tcx");
+}
+
+static bool cg3_vga_available(void)
+{
+ return object_class_by_name("SUNW,cgthree");
+}
+
static void select_vgahw (const char *p)
{
const char *opts;
@@ -2117,6 +2127,20 @@ static void select_vgahw (const char *p)
fprintf(stderr, "Error: QXL VGA not available\n");
exit(0);
}
+ } else if (strstart(p, "tcx", &opts)) {
+ if (tcx_vga_available()) {
+ vga_interface_type = VGA_TCX;
+ } else {
+ fprintf(stderr, "Error: TCX framebuffer not available\n");
+ exit(0);
+ }
+ } else if (strstart(p, "cg3", &opts)) {
+ if (cg3_vga_available()) {
+ vga_interface_type = VGA_CG3;
+ } else {
+ fprintf(stderr, "Error: CG3 framebuffer not available\n");
+ exit(0);
+ }
} else if (!strstart(p, "none", &opts)) {
invalid_vga:
fprintf(stderr, "Unknown vga type: %s\n", p);
--
1.7.10.4
^ permalink raw reply related [flat|nested] 7+ messages in thread
