Re: [Qemu-arm] [Qemu-devel] [PATCH 4/6] hw/sd/pl181: expose a SDBus and connect the SDCard to it

[Alistair Francis]

On Wed, Jan 3, 2018 at 8:23 AM, Philippe Mathieu-Daudé <address@hidden> wrote:
> using the sdbus_*() API.
>
> Signed-off-by: Philippe Mathieu-Daudé <address@hidden>

Reviewed-by: Alistair Francis <address@hidden>

Alistair

> ---
>  hw/sd/pl181.c | 27 ++++++++++++++++++++-------
>  1 file changed, 20 insertions(+), 7 deletions(-)
>
> diff --git a/hw/sd/pl181.c b/hw/sd/pl181.c
> index 55c8098ecd..ce696c5d7d 100644
> --- a/hw/sd/pl181.c
> +++ b/hw/sd/pl181.c
> @@ -33,6 +33,7 @@ typedef struct PL181State {
>      SysBusDevice parent_obj;
>
>      MemoryRegion iomem;
> +    SDBus sdbus;
>      SDState *card;
>      uint32_t clock;
>      uint32_t power;
> @@ -179,7 +180,7 @@ static void pl181_send_command(PL181State *s)
>      request.cmd = s->cmd & PL181_CMD_INDEX;
>      request.arg = s->cmdarg;
>      DPRINTF("Command %d %08x\n", request.cmd, request.arg);
> -    rlen = sd_do_command(s->card, &request, response);
> +    rlen = sdbus_do_command(&s->sdbus, &request, response);
>      if (rlen < 0)
>          goto error;
>      if (s->cmd & PL181_CMD_RESPONSE) {
> @@ -223,12 +224,12 @@ static void pl181_fifo_run(PL181State *s)
>      int is_read;
>
>      is_read = (s->datactrl & PL181_DATA_DIRECTION) != 0;
> -    if (s->datacnt != 0 && (!is_read || sd_data_ready(s->card))
> +    if (s->datacnt != 0 && (!is_read || sdbus_data_ready(&s->sdbus))
>              && !s->linux_hack) {
>          if (is_read) {
>              n = 0;
>              while (s->datacnt && s->fifo_len < PL181_FIFO_LEN) {
> -                value |= (uint32_t)sd_read_data(s->card) << (n * 8);
> +                value |= (uint32_t)sdbus_read_data(&s->sdbus) << (n * 8);
>                  s->datacnt--;
>                  n++;
>                  if (n == 4) {
> @@ -249,7 +250,7 @@ static void pl181_fifo_run(PL181State *s)
>                  }
>                  n--;
>                  s->datacnt--;
> -                sd_write_data(s->card, value & 0xff);
> +                sdbus_write_data(&s->sdbus, value & 0xff);
>                  value >>= 8;
>              }
>          }
> @@ -498,14 +499,26 @@ static void pl181_init(Object *obj)
>  static void pl181_realize(DeviceState *dev, Error **errp)
>  {
>      PL181State *s = PL181(dev);
> +    DeviceState *carddev;
>      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);
> -    s->card = sd_init(dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, false);
> -    if (s->card == NULL) {
> -        error_setg(errp, "sd_init failed");
> +    carddev = qdev_create(&s->sdbus.qbus, TYPE_SD_CARD);
> +    if (dinfo) {
> +        qdev_prop_set_drive(carddev, "drive", blk_by_legacy_dinfo(dinfo), 
> &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->card = SD_CARD(carddev);
>  }
>
>  static void pl181_class_init(ObjectClass *klass, void *data)
> --
> 2.15.1
>
>