1. Patchew
  2. QEMU
  3. [Qemu-devel] [PATCH 0/6] SDHCI: convert legacy devices to the SDBus API
  4. View patch

[Qemu-devel] [PATCH 3/6] hw/sd/milkymist-memcard: expose a SDBus and connect the SDCard to it

Philippe Mathieu-Daudé posted 6 patches 7 years, 9 months ago
[Qemu-devel] [PATCH 3/6] hw/sd/milkymist-memcard: expose a SDBus and connect the SDCard to it
Posted by Philippe Mathieu-Daudé 7 years, 9 months ago 
using the sdbus_*() API.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 hw/sd/milkymist-memcard.c | 34 +++++++++++++++++++++-------------
 1 file changed, 21 insertions(+), 13 deletions(-)

diff --git a/hw/sd/milkymist-memcard.c b/hw/sd/milkymist-memcard.c
index 5df3a0f815..9f4c7dad63 100644
--- a/hw/sd/milkymist-memcard.c
+++ b/hw/sd/milkymist-memcard.c
@@ -68,7 +68,7 @@ struct MilkymistMemcardState {
     SysBusDevice parent_obj;
 
     MemoryRegion regs_region;
-    SDState *card;
+    SDBus sdbus;
 
     int command_write_ptr;
     int response_read_ptr;
@@ -104,7 +104,7 @@ static void memcard_sd_command(MilkymistMemcardState *s)
     req.crc = s->command[5];
 
     s->response[0] = req.cmd;
-    s->response_len = sd_do_command(s->card, &req, s->response+1);
+    s->response_len = sdbus_do_command(&s->sdbus, &req, s->response + 1);
     s->response_read_ptr = 0;
 
     if (s->response_len == 16) {
@@ -149,10 +149,10 @@ static uint64_t memcard_read(void *opaque, hwaddr addr,
             r = 0xffffffff;
         } else {
             r = 0;
-            r |= sd_read_data(s->card) << 24;
-            r |= sd_read_data(s->card) << 16;
-            r |= sd_read_data(s->card) << 8;
-            r |= sd_read_data(s->card);
+            r |= sdbus_read_data(&s->sdbus) << 24;
+            r |= sdbus_read_data(&s->sdbus) << 16;
+            r |= sdbus_read_data(&s->sdbus) << 8;
+            r |= sdbus_read_data(&s->sdbus);
         }
         break;
     case R_CLK2XDIV:
@@ -206,10 +206,10 @@ static void memcard_write(void *opaque, hwaddr addr, uint64_t value,
         if (!s->enabled) {
             break;
         }
-        sd_write_data(s->card, (value >> 24) & 0xff);
-        sd_write_data(s->card, (value >> 16) & 0xff);
-        sd_write_data(s->card, (value >> 8) & 0xff);
-        sd_write_data(s->card, value & 0xff);
+        sdbus_write_data(&s->sdbus, (value >> 24) & 0xff);
+        sdbus_write_data(&s->sdbus, (value >> 16) & 0xff);
+        sdbus_write_data(&s->sdbus, (value >> 8) & 0xff);
+        sdbus_write_data(&s->sdbus, value & 0xff);
         break;
     case R_ENABLE:
         s->regs[addr] = value;
@@ -266,15 +266,23 @@ static int milkymist_memcard_init(SysBusDevice *dev)
 static void milkymist_memcard_realize(DeviceState *dev, Error **errp)
 {
     MilkymistMemcardState *s = MILKYMIST_MEMCARD(dev);
+    DeviceState *carddev;
     BlockBackend *blk;
     DriveInfo *dinfo;
+    Error *err = NULL;
 
+    qbus_create_inplace(&s->sdbus, sizeof(s->sdbus), TYPE_SD_BUS,
+                        dev, "sd-bus");
+
+    /* Create and plug in the sd card */
     /* FIXME use a qdev drive property instead of drive_get_next() */
     dinfo = drive_get_next(IF_SD);
     blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL;
-    s->card = sd_init(blk, false);
-    if (s->card == NULL) {
-        error_setg(errp, "failed to init SD card");
+    carddev = qdev_create(&s->sdbus.qbus, TYPE_SD_CARD);
+    qdev_prop_set_drive(carddev, "drive", blk, &err);
+    object_property_set_bool(OBJECT(carddev), true, "realized", &err);
+    if (err) {
+        error_setg(errp, "failed to init SD card: %s", error_get_pretty(err));
         return;
     }
     s->enabled = blk && blk_is_inserted(blk);
-- 
2.15.1
Re: [Qemu-devel] [PATCH 3/6] hw/sd/milkymist-memcard: expose a SDBus and connect the SDCard to it
Posted by Alistair Francis 7 years, 9 months ago 
On Wed, Jan 3, 2018 at 8:23 AM, Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
> using the sdbus_*() API.
>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>

Alistair

> ---
>  hw/sd/milkymist-memcard.c | 34 +++++++++++++++++++++-------------
>  1 file changed, 21 insertions(+), 13 deletions(-)
>
> diff --git a/hw/sd/milkymist-memcard.c b/hw/sd/milkymist-memcard.c
> index 5df3a0f815..9f4c7dad63 100644
> --- a/hw/sd/milkymist-memcard.c
> +++ b/hw/sd/milkymist-memcard.c
> @@ -68,7 +68,7 @@ struct MilkymistMemcardState {
>      SysBusDevice parent_obj;
>
>      MemoryRegion regs_region;
> -    SDState *card;
> +    SDBus sdbus;
>
>      int command_write_ptr;
>      int response_read_ptr;
> @@ -104,7 +104,7 @@ static void memcard_sd_command(MilkymistMemcardState *s)
>      req.crc = s->command[5];
>
>      s->response[0] = req.cmd;
> -    s->response_len = sd_do_command(s->card, &req, s->response+1);
> +    s->response_len = sdbus_do_command(&s->sdbus, &req, s->response + 1);
>      s->response_read_ptr = 0;
>
>      if (s->response_len == 16) {
> @@ -149,10 +149,10 @@ static uint64_t memcard_read(void *opaque, hwaddr addr,
>              r = 0xffffffff;
>          } else {
>              r = 0;
> -            r |= sd_read_data(s->card) << 24;
> -            r |= sd_read_data(s->card) << 16;
> -            r |= sd_read_data(s->card) << 8;
> -            r |= sd_read_data(s->card);
> +            r |= sdbus_read_data(&s->sdbus) << 24;
> +            r |= sdbus_read_data(&s->sdbus) << 16;
> +            r |= sdbus_read_data(&s->sdbus) << 8;
> +            r |= sdbus_read_data(&s->sdbus);
>          }
>          break;
>      case R_CLK2XDIV:
> @@ -206,10 +206,10 @@ static void memcard_write(void *opaque, hwaddr addr, uint64_t value,
>          if (!s->enabled) {
>              break;
>          }
> -        sd_write_data(s->card, (value >> 24) & 0xff);
> -        sd_write_data(s->card, (value >> 16) & 0xff);
> -        sd_write_data(s->card, (value >> 8) & 0xff);
> -        sd_write_data(s->card, value & 0xff);
> +        sdbus_write_data(&s->sdbus, (value >> 24) & 0xff);
> +        sdbus_write_data(&s->sdbus, (value >> 16) & 0xff);
> +        sdbus_write_data(&s->sdbus, (value >> 8) & 0xff);
> +        sdbus_write_data(&s->sdbus, value & 0xff);
>          break;
>      case R_ENABLE:
>          s->regs[addr] = value;
> @@ -266,15 +266,23 @@ static int milkymist_memcard_init(SysBusDevice *dev)
>  static void milkymist_memcard_realize(DeviceState *dev, Error **errp)
>  {
>      MilkymistMemcardState *s = MILKYMIST_MEMCARD(dev);
> +    DeviceState *carddev;
>      BlockBackend *blk;
>      DriveInfo *dinfo;
> +    Error *err = NULL;
>
> +    qbus_create_inplace(&s->sdbus, sizeof(s->sdbus), TYPE_SD_BUS,
> +                        dev, "sd-bus");
> +
> +    /* Create and plug in the sd card */
>      /* FIXME use a qdev drive property instead of drive_get_next() */
>      dinfo = drive_get_next(IF_SD);
>      blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL;
> -    s->card = sd_init(blk, false);
> -    if (s->card == NULL) {
> -        error_setg(errp, "failed to init SD card");
> +    carddev = qdev_create(&s->sdbus.qbus, TYPE_SD_CARD);
> +    qdev_prop_set_drive(carddev, "drive", blk, &err);
> +    object_property_set_bool(OBJECT(carddev), true, "realized", &err);
> +    if (err) {
> +        error_setg(errp, "failed to init SD card: %s", error_get_pretty(err));
>          return;
>      }
>      s->enabled = blk && blk_is_inserted(blk);
> --
> 2.15.1
>
>

Patchew 2.1-devel-b67e4c2

© 2016 - 2025 Red Hat, Inc.