Stellaris SSI qdev conversion

Signed-off-by: Paul Brook <paul@codesourcery.com>

hw/devices.h

@@ -6,10 +6,6 @@
 /* smc91c111.c */
 void smc91c111_init(NICInfo *, uint32_t, qemu_irq);
 
-/* ssd0323.c */
-int ssd0323_xfer_ssi(void *opaque, int data);
-void *ssd0323_init(qemu_irq *cmd_p);
-
 /* ads7846.c */
 typedef struct ADS7846State ADS7846State;
 uint32_t ads7846_read(void *opaque);

hw/pl022.c

@@ -7,7 +7,8 @@
  * This code is licenced under the GPL.
  */
 
-#include "hw.h"
+#include "sysbus.h"
+#include "ssi.h"
 #include "primecell.h"
 
 //#define DEBUG_PL022 1
@@ -40,6 +41,7 @@ do { fprintf(stderr, "pl022: error: " fmt , ## __VA_ARGS__);} while (0)
 #define PL022_INT_TX  0x08
 
 typedef struct {
+    SysBusDevice busdev;
     uint32_t cr0;
     uint32_t cr1;
     uint32_t bitmask;
@@ -55,8 +57,7 @@ typedef struct {
     uint16_t tx_fifo[8];
     uint16_t rx_fifo[8];
     qemu_irq irq;
-    int (*xfer_cb)(void *, int);
+    SSIBus *ssi;
-    void *opaque;
 } pl022_state;
 
 static const unsigned char pl022_id[8] =
@@ -116,10 +117,8 @@ static void pl022_xfer(pl022_state *s)
         val = s->tx_fifo[i];
         if (s->cr1 & PL022_CR1_LBM) {
             /* Loopback mode.  */
-        } else if (s->xfer_cb) {
-            val = s->xfer_cb(s->opaque, val);
         } else {
-            val = 0;
+            val = ssi_transfer(s->ssi, val);
         }
         s->rx_fifo[o] = val & s->bitmask;
         i = (i + 1) & 7;
@@ -289,19 +288,24 @@ static int pl022_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-void pl022_init(uint32_t base, qemu_irq irq, int (*xfer_cb)(void *, int),
+static void pl022_init(SysBusDevice *dev)
-                void * opaque)
 {
+    pl022_state *s = FROM_SYSBUS(pl022_state, dev);
     int iomemtype;
-    pl022_state *s;
 
-    s = (pl022_state *)qemu_mallocz(sizeof(pl022_state));
     iomemtype = cpu_register_io_memory(0, pl022_readfn,
                                        pl022_writefn, s);
-    cpu_register_physical_memory(base, 0x00001000, iomemtype);
+    sysbus_init_mmio(dev, 0x1000, iomemtype);
-    s->irq = irq;
+    sysbus_init_irq(dev, &s->irq);
-    s->xfer_cb = xfer_cb;
+    s->ssi = ssi_create_bus();
-    s->opaque = opaque;
+    qdev_attach_child_bus(&dev->qdev, "ssi", s->ssi);
     pl022_reset(s);
     register_savevm("pl022_ssp", -1, 1, pl022_save, pl022_load, s);
 }
+
+static void pl022_register_devices(void)
+{
+    sysbus_register_dev("pl022", sizeof(pl022_state), pl022_init);
+}
+
+device_init(pl022_register_devices)

hw/primecell.h

@@ -5,11 +5,6 @@
 /* Also includes some devices that are currently only used by the
    ARM boards.  */
 
-/* pl022.c */
-typedef int (*ssi_xfer_cb)(void *, int);
-void pl022_init(uint32_t base, qemu_irq irq, ssi_xfer_cb xfer_cb,
-                void *opaque);
-
 /* pl061.c */
 void pl061_float_high(void *opaque, uint8_t mask);
 qemu_irq *pl061_init(uint32_t base, qemu_irq irq, qemu_irq **out);

hw/sd.h

@@ -76,8 +76,4 @@ void sd_set_cb(SDState *sd, qemu_irq readonly, qemu_irq insert);
 int sd_data_ready(SDState *sd);
 void sd_enable(SDState *sd, int enable);
 
-/* ssi-sd.c */
-int ssi_sd_xfer(void *opaque, int val);
-void *ssi_sd_init(BlockDriverState *bs);
-
 #endif	/* __hw_sd_h */

hw/ssd0323.c

@@ -10,8 +10,7 @@
 /* The controller can support a variety of different displays, but we only
    implement one.  Most of the commends relating to brightness and geometry
    setup are ignored. */
-#include "hw.h"
+#include "ssi.h"
-#include "devices.h"
 #include "console.h"
 
 //#define DEBUG_SSD0323 1
@@ -43,6 +42,7 @@ enum ssd0323_mode
 };
 
 typedef struct {
+    SSISlave ssidev;
     DisplayState *ds;
 
     int cmd_len;
@@ -60,9 +60,10 @@ typedef struct {
     uint8_t framebuffer[128 * 80 / 2];
 } ssd0323_state;
 
-int ssd0323_xfer_ssi(void *opaque, int data)
+static uint32_t ssd0323_transfer(SSISlave *dev, uint32_t data)
 {
-    ssd0323_state *s = (ssd0323_state *)opaque;
+    ssd0323_state *s = FROM_SSI_SLAVE(ssd0323_state, dev);
+
     switch (s->mode) {
     case SSD0323_DATA:
         DPRINTF("data 0x%02x\n", data);
@@ -321,12 +322,10 @@ static int ssd0323_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-void *ssd0323_init(qemu_irq *cmd_p)
+static void ssd0323_init(SSISlave *dev)
 {
-    ssd0323_state *s;
+    ssd0323_state *s = FROM_SSI_SLAVE(ssd0323_state, dev);
-    qemu_irq *cmd;
 
-    s = (ssd0323_state *)qemu_mallocz(sizeof(ssd0323_state));
     s->col_end = 63;
     s->row_end = 79;
     s->ds = graphic_console_init(ssd0323_update_display,
@@ -334,10 +333,19 @@ void *ssd0323_init(qemu_irq *cmd_p)
                                  NULL, NULL, s);
     qemu_console_resize(s->ds, 128 * MAGNIFY, 64 * MAGNIFY);
 
-    cmd = qemu_allocate_irqs(ssd0323_cd, s, 1);
+    qdev_init_gpio_in(&dev->qdev, ssd0323_cd, 1);
-    *cmd_p = *cmd;
 
     register_savevm("ssd0323_oled", -1, 1, ssd0323_save, ssd0323_load, s);
-
-    return s;
 }
+
+static SSISlaveInfo ssd0323_info = {
+    .init = ssd0323_init,
+    .transfer = ssd0323_transfer
+};
+
+static void ssd03232_register_devices(void)
+{
+    ssi_register_slave("ssd0323", sizeof(ssd0323_state), &ssd0323_info);
+}
+
+device_init(ssd03232_register_devices)

hw/ssi-sd.c

@@ -1,14 +1,15 @@
 /*
  * SSI to SD card adapter.
  *
- * Copyright (c) 2007 CodeSourcery.
+ * Copyright (c) 2007-2009 CodeSourcery.
  * Written by Paul Brook
  *
- * This code is licenced under the GPL.
+ * This code is licenced under the GNU GPL v2.
  */
 
-#include "hw.h"
+#include "ssi.h"
 #include "sd.h"
+#include "sysemu.h"
 
 //#define DEBUG_SSI_SD 1
 
@@ -32,6 +33,7 @@ typedef enum {
 } ssi_sd_mode;
 
 typedef struct {
+    SSISlave ssidev;
     ssi_sd_mode mode;
     int cmd;
     uint8_t cmdarg[4];
@@ -59,9 +61,9 @@ typedef struct {
 #define SSI_SDR_ADDRESS_ERROR   0x2000
 #define SSI_SDR_PARAMETER_ERROR 0x4000
 
-int ssi_sd_xfer(void *opaque, int val)
+static uint32_t ssi_sd_transfer(SSISlave *dev, uint32_t val)
 {
-    ssi_sd_state *s = (ssi_sd_state *)opaque;
+    ssi_sd_state *s = FROM_SSI_SLAVE(ssi_sd_state, dev);
 
     /* Special case: allow CMD12 (STOP TRANSMISSION) while reading data.  */
     if (s->mode == SSI_SD_DATA_READ && val == 0x4d) {
@@ -227,13 +229,25 @@ static int ssi_sd_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-void *ssi_sd_init(BlockDriverState *bs)
+static void ssi_sd_init(SSISlave *dev)
 {
-    ssi_sd_state *s;
+    ssi_sd_state *s = FROM_SSI_SLAVE(ssi_sd_state, dev);
+    BlockDriverState *bs;
 
-    s = (ssi_sd_state *)qemu_mallocz(sizeof(ssi_sd_state));
     s->mode = SSI_SD_CMD;
+    bs = qdev_init_bdrv(&dev->qdev, IF_SD);
     s->sd = sd_init(bs, 1);
     register_savevm("ssi_sd", -1, 1, ssi_sd_save, ssi_sd_load, s);
-    return s;
 }
+
+static SSISlaveInfo ssi_sd_info = {
+    .init = ssi_sd_init,
+    .transfer = ssi_sd_transfer
+};
+
+static void ssi_sd_register_devices(void)
+{
+    ssi_register_slave("ssi-sd", sizeof(ssi_sd_state), &ssi_sd_info);
+}
+
+device_init(ssi_sd_register_devices)

hw/stellaris.c

@@ -8,13 +8,13 @@
  */
 
 #include "sysbus.h"
+#include "ssi.h"
 #include "arm-misc.h"
 #include "primecell.h"
 #include "devices.h"
 #include "qemu-timer.h"
 #include "i2c.h"
 #include "net.h"
-#include "sd.h"
 #include "sysemu.h"
 #include "boards.h"
 
@@ -1196,10 +1196,10 @@ static qemu_irq stellaris_adc_init(uint32_t base, qemu_irq irq)
    0xff commands that occur when deselecting the SD card.  */
 
 typedef struct {
-    ssi_xfer_cb xfer_cb[2];
+    SSISlave ssidev;
-    void *opaque[2];
     qemu_irq irq;
     int current_dev;
+    SSIBus *bus[2];
 } stellaris_ssi_bus_state;
 
 static void stellaris_ssi_bus_select(void *opaque, int irq, int level)
@@ -1209,11 +1209,11 @@ static void stellaris_ssi_bus_select(void *opaque, int irq, int level)
     s->current_dev = level;
 }
 
-static int stellaris_ssi_bus_xfer(void *opaque, int val)
+static uint32_t stellaris_ssi_bus_transfer(SSISlave *dev, uint32_t val)
 {
-    stellaris_ssi_bus_state *s = (stellaris_ssi_bus_state *)opaque;
+    stellaris_ssi_bus_state *s = FROM_SSI_SLAVE(stellaris_ssi_bus_state, dev);
 
-    return s->xfer_cb[s->current_dev](s->opaque[s->current_dev], val);
+    return ssi_transfer(s->bus[s->current_dev], val);
 }
 
 static void stellaris_ssi_bus_save(QEMUFile *f, void *opaque)
@@ -1235,23 +1235,18 @@ static int stellaris_ssi_bus_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-static void *stellaris_ssi_bus_init(qemu_irq *irqp,
+static void stellaris_ssi_bus_init(SSISlave *dev)
-                                    ssi_xfer_cb cb0, void *opaque0,
-                                    ssi_xfer_cb cb1, void *opaque1)
 {
-    qemu_irq *qi;
+    stellaris_ssi_bus_state *s = FROM_SSI_SLAVE(stellaris_ssi_bus_state, dev);
-    stellaris_ssi_bus_state *s;
+
+    s->bus[0] = ssi_create_bus();
+    qdev_attach_child_bus(&dev->qdev, "ssi0", s->bus[0]);
+    s->bus[1] = ssi_create_bus();
+    qdev_attach_child_bus(&dev->qdev, "ssi1", s->bus[1]);
+    qdev_init_gpio_in(&dev->qdev, stellaris_ssi_bus_select, 1);
 
-    s = (stellaris_ssi_bus_state *)qemu_mallocz(sizeof(stellaris_ssi_bus_state));
-    s->xfer_cb[0] = cb0;
-    s->opaque[0] = opaque0;
-    s->xfer_cb[1] = cb1;
-    s->opaque[1] = opaque1;
-    qi = qemu_allocate_irqs(stellaris_ssi_bus_select, s, 1);
-    *irqp = *qi;
     register_savevm("stellaris_ssi_bus", -1, 1,
                     stellaris_ssi_bus_save, stellaris_ssi_bus_load, s);
-    return s;
 }
 
 /* Board init.  */
@@ -1338,25 +1333,25 @@ static void stellaris_init(const char *kernel_filename, const char *cpu_model,
         }
     }
     if (board->dc2 & (1 << 4)) {
+        DeviceState *dev;
+        dev = sysbus_create_simple("pl022", 0x40008000, pic[7]);
         if (board->peripherals & BP_OLED_SSI) {
-            void * oled;
+            DeviceState *mux;
-            void * sd;
+            void *bus;
-            void *ssi_bus;
-            int index;
 
-            oled = ssd0323_init(&gpio_out[GPIO_C][7]);
+            bus = qdev_get_child_bus(dev, "ssi");
-            index = drive_get_index(IF_SD, 0, 0);
+            mux = ssi_create_slave(bus, "evb6965-ssi");
-            sd = ssi_sd_init(drives_table[index].bdrv);
+            gpio_out[GPIO_D][0] = qdev_get_gpio_in(mux, 0);
 
-            ssi_bus = stellaris_ssi_bus_init(&gpio_out[GPIO_D][0],
+            bus = qdev_get_child_bus(mux, "ssi0");
-                                             ssi_sd_xfer, sd,
+            dev = ssi_create_slave(bus, "ssi-sd");
-                                             ssd0323_xfer_ssi, oled);
+
+            bus = qdev_get_child_bus(mux, "ssi1");
+            dev = ssi_create_slave(bus, "ssd0323");
+            gpio_out[GPIO_C][7] = qdev_get_gpio_in(dev, 0);
 
-            pl022_init(0x40008000, pic[7], stellaris_ssi_bus_xfer, ssi_bus);
             /* Make sure the select pin is high.  */
             qemu_irq_raise(gpio_out[GPIO_D][0]);
-        } else {
-            pl022_init(0x40008000, pic[7], NULL, NULL);
         }
     }
     if (board->dc4 & (1 << 28)) {
@@ -1413,10 +1408,17 @@ QEMUMachine lm3s6965evb_machine = {
     .init = lm3s6965evb_init,
 };
 
+static SSISlaveInfo stellaris_ssi_bus_info = {
+    .init = stellaris_ssi_bus_init,
+    .transfer = stellaris_ssi_bus_transfer
+};
+
 static void stellaris_register_devices(void)
 {
     sysbus_register_dev("stellaris-i2c", sizeof(stellaris_i2c_state),
                         stellaris_i2c_init);
+    ssi_register_slave("evb6965-ssi", sizeof(stellaris_ssi_bus_state),
+                       &stellaris_ssi_bus_info);
 }
 
 device_init(stellaris_register_devices)