Re: [Qemu-devel] [PATCH v4 20/20] sdcard: add an enum for the SD PHY Spec version

[Peter Maydell]

On 15 February 2018 at 22:13, Philippe Mathieu-Daudé <address@hidden> wrote:
> So far this device intends to model the Spec v1.10
>
> Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
> Reviewed-by: Alistair Francis <address@hidden>
> ---
>  hw/sd/sd.c | 7 +++++++
>  1 file changed, 7 insertions(+)
>
> diff --git a/hw/sd/sd.c b/hw/sd/sd.c
> index b9429b06ca..d4565626ce 100644
> --- a/hw/sd/sd.c
> +++ b/hw/sd/sd.c
> @@ -47,6 +47,11 @@
>
>  //#define DEBUG_SD 1
>
> +typedef enum {
> +    SD_PHY_SPEC_VER_1_10 = 110,
> +    SD_PHY_SPEC_VER_2_00 = 200, /* not yet supported */
> +} sd_phy_spec_ver_t;
> +
>  typedef enum {
>      sd_r0 = 0,    /* no response */
>      sd_r1,        /* normal response command */
> @@ -122,6 +127,7 @@ struct SDState {
>      qemu_irq inserted_cb;
>      QEMUTimer *ocr_power_timer;
>      const char *proto_name;
> +    int spec_version;
>      bool enable;
>      uint8_t dat_lines;
>      bool cmd_line;
> @@ -2169,6 +2175,7 @@ static void sd_realize(DeviceState *dev, Error **errp)
>      int ret;
>
>      sd->proto_name = sd->spi ? "SPI" : "SD";
> +    sd->spec_version = SD_PHY_SPEC_VER_1_10;
>
>      if (sd->blk && blk_is_read_only(sd->blk)) {
>          error_setg(errp, "Cannot use read-only drive as SD card");

I think I'd prefer to see this patch with the ones that actually use
the field -- as it stands it's never used.

thanks
-- PMM