hw/sd/sdcard: Convert SEND_NUM_WR_BLOCKS to generic_read_byte (ACMD22)

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20240628070216.92609-28-philmd@linaro.org>

diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index 0a65bd5a768e9117fe702002cc20bf9e8e9e1f6d..5d5e55243ec939ded546e87c91363ab51cc8ef97 100644 (file)
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -1705,11 +1705,9 @@ static sd_rsp_type_t sd_app_command(SDState *sd,
     case 22:  /* ACMD22: SEND_NUM_WR_BLOCKS */
         switch (sd->state) {
         case sd_transfer_state:
-            stl_be_p(sd->data, sd->blk_written);
-            sd->state = sd_sendingdata_state;
-            sd->data_start = 0;
-            sd->data_offset = 0;
-            return sd_r1;
+            return sd_cmd_to_sendingdata(sd, req, 0,
+                                         &sd->blk_written,
+                                         sizeof(sd->blk_written));
 
         default:
             break;
@@ -2129,6 +2127,7 @@ uint8_t sd_read_byte(SDState *sd)
     case 13: /* ACMD13: SD_STATUS */
     case 17: /* CMD17:  READ_SINGLE_BLOCK */
     case 19: /* CMD19:  SEND_TUNING_BLOCK (SD) */
+    case 22: /* ACMD22: SEND_NUM_WR_BLOCKS */
     case 30: /* CMD30:  SEND_WRITE_PROT */
         sd_generic_read_byte(sd, &ret);
         break;
@@ -2157,13 +2156,6 @@ uint8_t sd_read_byte(SDState *sd)
         }
         break;
 
-    case 22:  /* ACMD22: SEND_NUM_WR_BLOCKS */
-        ret = sd->data[sd->data_offset ++];
-
-        if (sd->data_offset >= 4)
-            sd->state = sd_transfer_state;
-        break;
-
     case 51:  /* ACMD51: SEND_SCR */
         ret = sd->scr[sd->data_offset ++];