[Qemu-devel] [PATCH 8/8] [MIPS] qdev: convert rc4030 to sysbus device

["Hervé Poussineau" <hpoussin@reactos.org>]

Use it in Jazz emulation
Remove rc4030_init() function, which is not used anymore

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
---
 hw/mips.h      |    4 +-
 hw/mips_jazz.c |    8 +--
 hw/rc4030.c    |  135 ++++++++++++++++++++++++++-----------------------------
 3 files changed, 69 insertions(+), 78 deletions(-)

diff --git a/hw/mips.h b/hw/mips.h
index 2897ea6..bdbe024 100644
--- a/hw/mips.h
+++ b/hw/mips.h
@@ -16,8 +16,8 @@ typedef struct rc4030DMAState *rc4030_dma;
 void rc4030_dma_memory_rw(void *opaque, target_phys_addr_t addr, uint8_t *buf, int len, int is_write);
 void rc4030_dma_read(void *dma, uint8_t *buf, int len);
 void rc4030_dma_write(void *dma, uint8_t *buf, int len);
-
-void *rc4030_init(qemu_irq timer, rc4030_dma **dmas);
+extern rc4030_dma *rc4030_dmas;
+extern void *rc4030_dma_opaque;
 
 /* dp8393x.c */
 void dp83932_init(NICInfo *nd, target_phys_addr_t base, int it_shift,
diff --git a/hw/mips_jazz.c b/hw/mips_jazz.c
index 56739db..eec30c8 100644
--- a/hw/mips_jazz.c
+++ b/hw/mips_jazz.c
@@ -133,8 +133,6 @@ void mips_jazz_init (ram_addr_t ram_size,
     CPUState *env;
     DeviceState *dev;
     qemu_irq rc4030[16], *i8259;
-    rc4030_dma *dmas;
-    void* rc4030_opaque;
     int s_rtc, s_dma_dummy;
     NICInfo *nd;
     PITState *pit;
@@ -196,7 +194,7 @@ void mips_jazz_init (ram_addr_t ram_size,
         rc4030[n] = qdev_get_gpio_in(dev, n);
     }
 
-    rc4030_opaque = rc4030_init(env->irq[6], &dmas);
+    sysbus_create_simple("rc4030", 0x80000000, env->irq[6]);
     s_dma_dummy = cpu_register_io_memory(dma_dummy_read, dma_dummy_write, NULL);
     cpu_register_physical_memory(0x8000d000, 0x00001000, s_dma_dummy);
 
@@ -237,7 +235,7 @@ void mips_jazz_init (ram_addr_t ram_size,
             nd->model = qemu_strdup("dp83932");
         if (strcmp(nd->model, "dp83932") == 0) {
             dp83932_init(nd, 0x80001000, 2, rc4030[4],
-                         rc4030_opaque, rc4030_dma_memory_rw);
+                         rc4030_dma_opaque, rc4030_dma_memory_rw);
             break;
         } else if (strcmp(nd->model, "?") == 0) {
             fprintf(stderr, "qemu: Supported NICs: dp83932\n");
@@ -250,7 +248,7 @@ void mips_jazz_init (ram_addr_t ram_size,
 
     /* SCSI adapter */
     esp_init(0x80002000, 0,
-             rc4030_dma_read, rc4030_dma_write, dmas[0],
+             rc4030_dma_read, rc4030_dma_write, rc4030_dmas[0],
              rc4030[5], &esp_reset);
 
     /* Floppy */
diff --git a/hw/rc4030.c b/hw/rc4030.c
index 811d12d..0c77c44 100644
--- a/hw/rc4030.c
+++ b/hw/rc4030.c
@@ -45,6 +45,9 @@ static const char* irq_names[] = { "parallel", "floppy", "sound", "video",
 #define RC4030_ERROR(fmt, ...) \
 do { fprintf(stderr, "rc4030 ERROR: %s: " fmt, __func__ , ## __VA_ARGS__); } while (0)
 
+rc4030_dma *rc4030_dmas = NULL;
+void *rc4030_dma_opaque = NULL;
+
 /********************************************************/
 /* rc4030 emulation                                     */
 
@@ -584,9 +587,8 @@ static void jazzio_reset(JazzIoState* s)
     qemu_irq_lower(s->irq);
 }
 
-static void rc4030_reset(void *opaque)
+static void rc4030_reset(rc4030State *s)
 {
-    rc4030State *s = opaque;
     int i;
 
     s->config = 0x410; /* some boards seem to accept 0x104 too */
@@ -611,63 +613,6 @@ static void rc4030_reset(void *opaque)
     qemu_irq_lower(s->timer_irq);
 }
 
-static int rc4030_load(QEMUFile *f, void *opaque, int version_id)
-{
-    rc4030State* s = opaque;
-    int i, j;
-
-    if (version_id != 2)
-        return -EINVAL;
-
-    s->config = qemu_get_be32(f);
-    s->invalid_address_register = qemu_get_be32(f);
-    for (i = 0; i < 8; i++)
-        for (j = 0; j < 4; j++)
-            s->dma_regs[i][j] = qemu_get_be32(f);
-    s->dma_tl_base = qemu_get_be32(f);
-    s->dma_tl_limit = qemu_get_be32(f);
-    s->cache_maint = qemu_get_be32(f);
-    s->remote_failed_address = qemu_get_be32(f);
-    s->memory_failed_address = qemu_get_be32(f);
-    s->cache_ptag = qemu_get_be32(f);
-    s->cache_ltag = qemu_get_be32(f);
-    s->cache_bmask = qemu_get_be32(f);
-    s->offset210 = qemu_get_be32(f);
-    s->nvram_protect = qemu_get_be32(f);
-    for (i = 0; i < 15; i++)
-        s->rem_speed[i] = qemu_get_be32(f);
-    s->itr = qemu_get_be32(f);
-
-    set_next_tick(s);
-
-    return 0;
-}
-
-static void rc4030_save(QEMUFile *f, void *opaque)
-{
-    rc4030State* s = opaque;
-    int i, j;
-
-    qemu_put_be32(f, s->config);
-    qemu_put_be32(f, s->invalid_address_register);
-    for (i = 0; i < 8; i++)
-        for (j = 0; j < 4; j++)
-            qemu_put_be32(f, s->dma_regs[i][j]);
-    qemu_put_be32(f, s->dma_tl_base);
-    qemu_put_be32(f, s->dma_tl_limit);
-    qemu_put_be32(f, s->cache_maint);
-    qemu_put_be32(f, s->remote_failed_address);
-    qemu_put_be32(f, s->memory_failed_address);
-    qemu_put_be32(f, s->cache_ptag);
-    qemu_put_be32(f, s->cache_ltag);
-    qemu_put_be32(f, s->cache_bmask);
-    qemu_put_be32(f, s->offset210);
-    qemu_put_be32(f, s->nvram_protect);
-    for (i = 0; i < 15; i++)
-        qemu_put_be32(f, s->rem_speed[i]);
-    qemu_put_be32(f, s->itr);
-}
-
 void rc4030_dma_memory_rw(void *opaque, target_phys_addr_t addr, uint8_t *buf, int len, int is_write)
 {
     rc4030State *s = opaque;
@@ -788,28 +733,75 @@ static rc4030_dma *rc4030_allocate_dmas(void *opaque, int n)
     return s;
 }
 
-void *rc4030_init(qemu_irq timer, rc4030_dma **dmas)
+static int rc4030_post_load(void *opaque, int version_id)
 {
-    rc4030State *s;
-    int s_chipset;
-
-    s = qemu_mallocz(sizeof(rc4030State));
+    rc4030State *s = opaque;
+    set_next_tick(s);
+    return 0;
+}
 
-    *dmas = rc4030_allocate_dmas(s, 4);
+static const VMStateDescription vmstate_rc4030 = {
+    .name = "rc4030",
+    .version_id = 0,
+    .minimum_version_id = 0,
+    .minimum_version_id_old = 0,
+    .post_load = rc4030_post_load,
+    .fields = (VMStateField []) {
+        VMSTATE_UINT32(config, rc4030State),
+        VMSTATE_UINT32(invalid_address_register, rc4030State),
+        VMSTATE_BUFFER_UNSAFE(dma_regs, rc4030State, 0, 8 * 3 * sizeof(uint32_t)),
+        VMSTATE_UINT32(dma_tl_base, rc4030State),
+        VMSTATE_UINT32(dma_tl_limit, rc4030State),
+        VMSTATE_UINT32(cache_maint, rc4030State),
+        VMSTATE_UINT32(remote_failed_address, rc4030State),
+        VMSTATE_UINT32(memory_failed_address, rc4030State),
+        VMSTATE_UINT32(cache_ptag, rc4030State),
+        VMSTATE_UINT32(cache_ltag, rc4030State),
+        VMSTATE_UINT32(cache_bmask, rc4030State),
+        VMSTATE_UINT32(offset210, rc4030State),
+        VMSTATE_UINT32(nvram_protect, rc4030State),
+        VMSTATE_UINT32_ARRAY(rem_speed, rc4030State, 16),
+        VMSTATE_UINT32(itr, rc4030State),
+        VMSTATE_END_OF_LIST()
+    }
+};
 
-    s->periodic_timer = qemu_new_timer(vm_clock, rc4030_periodic_timer, s);
-    s->timer_irq = timer;
+typedef struct {
+    SysBusDevice busdev;
+    rc4030State rc4030;
+} SysBusRc4030State;
 
-    qemu_register_reset(rc4030_reset, s);
-    register_savevm(NULL, "rc4030", 0, 2, rc4030_save, rc4030_load, s);
+static void rc4030_sysbus_reset(DeviceState *d)
+{
+    rc4030State *s = &container_of(d, SysBusRc4030State, busdev.qdev)->rc4030;
     rc4030_reset(s);
+}
+
+static int rc4030_sysbus_initfn(SysBusDevice *dev)
+{
+    rc4030State *s = &FROM_SYSBUS(SysBusRc4030State, dev)->rc4030;
+    int s_chipset;
+
+    rc4030_dmas = rc4030_allocate_dmas(s, 4);
+    rc4030_dma_opaque = s;
+
+    s->periodic_timer = qemu_new_timer(vm_clock, rc4030_periodic_timer, s);
+    sysbus_init_irq(dev, &s->timer_irq);
 
     s_chipset = cpu_register_io_memory(rc4030_read, rc4030_write, s);
-    cpu_register_physical_memory(0x80000000, 0x300, s_chipset);
+    sysbus_init_mmio(dev, 0x300, s_chipset);
 
-    return s;
+    return 0;
 }
 
+static SysBusDeviceInfo rc4030_sysbus_info = {
+    .qdev.name  = "rc4030",
+    .qdev.size  = sizeof(SysBusRc4030State),
+    .qdev.vmsd  = &vmstate_rc4030,
+    .qdev.reset = rc4030_sysbus_reset,
+    .init       = rc4030_sysbus_initfn,
+};
+
 static int jazzio_post_load(void *opaque, int version_id)
 {
     JazzIoState *s = opaque;
@@ -878,6 +870,7 @@ static SysBusDeviceInfo jazzio_sysbus_info = {
 
 static void jazz_register(void)
 {
+    sysbus_register_withprop(&rc4030_sysbus_info);
     sysbus_register_withprop(&jazzio_sysbus_info);
 }
 
-- 
1.7.1.GIT