On 19 February 2017 at 16:35, BALATON Zoltan <bala...@eik.bme.hu> wrote:
Signed-off-by: BALATON Zoltan <bala...@eik.bme.hu>
---
hw/display/sm501.c | 133 +++++++++++++++++++++++++++++++++++----------------
hw/sh4/r2d.c | 11 ++++-
include/hw/devices.h | 5 --
3 files changed, 101 insertions(+), 48 deletions(-)
diff --git a/hw/display/sm501.c b/hw/display/sm501.c
index 4eb085c..b592022 100644
--- a/hw/display/sm501.c
+++ b/hw/display/sm501.c
@@ -58,8 +58,8 @@
#define SM501_DPRINTF(fmt, ...) do {} while (0)
#endif
-
#define MMIO_BASE_OFFSET 0x3e00000
+#define MMIO_SIZE 0x200000
/* SM501 register definitions taken from "linux/include/linux/sm501-regs.h" */
@@ -464,6 +464,7 @@ typedef struct SM501State {
uint32_t local_mem_size_index;
uint8_t *local_mem;
MemoryRegion local_mem_region;
+ MemoryRegion mmio_region;
uint32_t last_width;
uint32_t last_height;
@@ -1396,20 +1397,14 @@ static const GraphicHwOps sm501_ops = {
.gfx_update = sm501_update_display,
};
-void sm501_init(MemoryRegion *address_space_mem, uint32_t base,
- uint32_t local_mem_bytes, qemu_irq irq, Chardev *chr)
+static void sm501_init(SM501State *s, DeviceState *dev, uint32_t base,
+ uint32_t local_mem_bytes)
{
- SM501State *s;
- DeviceState *dev;
- MemoryRegion *sm501_system_config = g_new(MemoryRegion, 1);
- MemoryRegion *sm501_disp_ctrl = g_new(MemoryRegion, 1);
- MemoryRegion *sm501_2d_engine = g_new(MemoryRegion, 1);
-
- /* allocate management data region */
- s = g_new0(SM501State, 1);
+ MemoryRegion *mr;
+
s->base = base;
s->local_mem_size_index = get_local_mem_size_index(local_mem_bytes);
- SM501_DPRINTF("local mem size=%x. index=%d\n", get_local_mem_size(s),
+ SM501_DPRINTF("sm501 local mem size=%x. index=%d\n", get_local_mem_size(s),
s->local_mem_size_index);
s->system_control = 0x00100000; /* 2D engine FIFO empty */
s->misc_control = SM501_MISC_IRQ_INVERT; /* assumes SH, active=low */
@@ -1417,46 +1412,102 @@ void sm501_init(MemoryRegion *address_space_mem,
uint32_t base,
s->dc_crt_control = 0x00010000;
/* allocate local memory */
- memory_region_init_ram(&s->local_mem_region, NULL, "sm501.local",
+ memory_region_init_ram(&s->local_mem_region, OBJECT(dev), "sm501.local",
local_mem_bytes, &error_fatal);
vmstate_register_ram_global(&s->local_mem_region);
memory_region_set_log(&s->local_mem_region, true, DIRTY_MEMORY_VGA);
s->local_mem = memory_region_get_ram_ptr(&s->local_mem_region);
- memory_region_add_subregion(address_space_mem, base, &s->local_mem_region);
-
- /* map mmio */
- memory_region_init_io(sm501_system_config, NULL, &sm501_system_config_ops,
- s, "sm501-system-config", 0x6c);
- memory_region_add_subregion(address_space_mem, base + MMIO_BASE_OFFSET,
- sm501_system_config);
- memory_region_init_io(sm501_disp_ctrl, NULL, &sm501_disp_ctrl_ops, s,
+
+ /* allocate mmio */
+ memory_region_init(&s->mmio_region, OBJECT(dev), "sm501.mmio", MMIO_SIZE);
+ mr = g_new(MemoryRegion, 1);
There's no need to dynamically allocate any of these memory regions;
just make them be MemoryRegion fields inside SM501State.
+ memory_region_init_io(mr, OBJECT(dev), &sm501_system_config_ops, s,
+ "sm501-system-config", 0x6c);
+ memory_region_add_subregion(&s->mmio_region, SM501_SYS_CONFIG, mr);
+ mr = g_new(MemoryRegion, 1);
+ memory_region_init_io(mr, OBJECT(dev), &sm501_disp_ctrl_ops, s,
"sm501-disp-ctrl", 0x1000);
- memory_region_add_subregion(address_space_mem,
- base + MMIO_BASE_OFFSET + SM501_DC,
- sm501_disp_ctrl);
- memory_region_init_io(sm501_2d_engine, NULL, &sm501_2d_engine_ops, s,
+ memory_region_add_subregion(&s->mmio_region, SM501_DC, mr);
+ mr = g_new(MemoryRegion, 1);
+ memory_region_init_io(mr, OBJECT(dev), &sm501_2d_engine_ops, s,
"sm501-2d-engine", 0x54);
- memory_region_add_subregion(address_space_mem,
- base + MMIO_BASE_OFFSET + SM501_2D_ENGINE,
- sm501_2d_engine);
+ memory_region_add_subregion(&s->mmio_region, SM501_2D_ENGINE, mr);
+
+ /* create qemu graphic console */
+ s->con = graphic_console_init(DEVICE(dev), 0, &sm501_ops, s);
+}
+
+#define TYPE_SYSBUS_SM501 "sysbus-sm501"
+#define SYSBUS_SM501(obj) \
+ OBJECT_CHECK(SM501SysBusState, (obj), TYPE_SYSBUS_SM501)
+
+typedef struct {
+ /*< private >*/
+ SysBusDevice parent_obj;
+ /*< public >*/
+ SM501State state;
+ uint32_t vram_size;
+ uint32_t base;
+ void *chr_state;
+} SM501SysBusState;
+
+static void sm501_realize_sysbus(DeviceState *dev, Error **errp)
+{
+ SM501SysBusState *s = SYSBUS_SM501(dev);
+ SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
+ DeviceState *usb_dev;
+
+ sm501_init(&s->state, dev, s->base, s->vram_size);
+ sysbus_init_mmio(sbd, &s->state.local_mem_region);
+ sysbus_init_mmio(sbd, &s->state.mmio_region);
/* bridge to usb host emulation module */
- dev = qdev_create(NULL, "sysbus-ohci");
- qdev_prop_set_uint32(dev, "num-ports", 2);
- qdev_prop_set_uint64(dev, "dma-offset", base);
- qdev_init_nofail(dev);
- sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0,
- base + MMIO_BASE_OFFSET + SM501_USB_HOST);
- sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq);
+ usb_dev = qdev_create(NULL, "sysbus-ohci");
+ qdev_prop_set_uint32(usb_dev, "num-ports", 2);
+ qdev_prop_set_uint64(usb_dev, "dma-offset", s->base);
+ qdev_init_nofail(usb_dev);
Why is a display controller device creating a USB controller?
This looks like something that should be being done by the board.
+ memory_region_add_subregion(&s->state.mmio_region, SM501_USB_HOST,
+ sysbus_mmio_get_region(SYS_BUS_DEVICE(usb_dev), 0));
+ sysbus_pass_irq(sbd, SYS_BUS_DEVICE(usb_dev));
/* bridge to serial emulation module */
- if (chr) {
- serial_mm_init(address_space_mem,
- base + MMIO_BASE_OFFSET + SM501_UART0, 2,
+ if (s->chr_state) {
+ serial_mm_init(&s->state.mmio_region, SM501_UART0, 2,
NULL, /* TODO : chain irq to IRL */
- 115200, chr, DEVICE_NATIVE_ENDIAN);
+ 115200, s->chr_state, DEVICE_NATIVE_ENDIAN);
}
+}
Similarly, what's going on here with the serial?
- /* create qemu graphic console */
- s->con = graphic_console_init(DEVICE(dev), 0, &sm501_ops, s);
+static Property sm501_sysbus_properties[] = {
+ DEFINE_PROP_UINT32("vram-size", SM501SysBusState, vram_size, 0),
+ DEFINE_PROP_UINT32("base", SM501SysBusState, base, 0),
+ DEFINE_PROP_PTR("chr-state", SM501SysBusState, chr_state),
+ DEFINE_PROP_END_OF_LIST(),
+};
+static void sm501_sysbus_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->realize = sm501_realize_sysbus;
+ set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
+ dc->desc = "SM501 Multimedia Companion";
+ dc->props = sm501_sysbus_properties;
+/* Note: pointer property "chr-state" may remain null, thus
+ * no need for dc->cannot_instantiate_with_device_add_yet = true;
+ */
}
You also need a VMState struct registered in dc->vmsd and a reset
function registered in dc->reset.
