hw/sd/sdhci: Factor sdhci_sdma_transfer() out

Factor sdhci_sdma_transfer() out of sdhci_data_transfer().
Re-use it in sdhci_write(), so we don't try to run multi
block transfer for a single block.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20250109122029.22780-1-philmd@linaro.org>

hw/sd/sdhci.c

@@ -699,6 +699,15 @@ static void sdhci_sdma_transfer_single_block(SDHCIState *s)
     sdhci_end_transfer(s);
 }
 
+static void sdhci_sdma_transfer(SDHCIState *s)
+{
+    if ((s->blkcnt == 1) || !(s->trnmod & SDHC_TRNS_MULTI)) {
+        sdhci_sdma_transfer_single_block(s);
+    } else {
+        sdhci_sdma_transfer_multi_blocks(s);
+    }
+}
+
 typedef struct ADMADescr {
     hwaddr addr;
     uint16_t length;
@@ -930,12 +939,7 @@ static void sdhci_data_transfer(void *opaque)
     if (s->trnmod & SDHC_TRNS_DMA) {
         switch (SDHC_DMA_TYPE(s->hostctl1)) {
         case SDHC_CTRL_SDMA:
-            if ((s->blkcnt == 1) || !(s->trnmod & SDHC_TRNS_MULTI)) {
-                sdhci_sdma_transfer_single_block(s);
-            } else {
-                sdhci_sdma_transfer_multi_blocks(s);
-            }
-
+            sdhci_sdma_transfer(s);
             break;
         case SDHC_CTRL_ADMA1_32:
             if (!(s->capareg & R_SDHC_CAPAB_ADMA1_MASK)) {
@@ -1179,11 +1183,7 @@ sdhci_write(void *opaque, hwaddr offset, uint64_t val, unsigned size)
             if (!(mask & 0xFF000000) && s->blkcnt &&
                 (s->blksize & BLOCK_SIZE_MASK) &&
                 SDHC_DMA_TYPE(s->hostctl1) == SDHC_CTRL_SDMA) {
-                if (s->trnmod & SDHC_TRNS_MULTI) {
-                    sdhci_sdma_transfer_multi_blocks(s);
-                } else {
-                    sdhci_sdma_transfer_single_block(s);
-                }
+                sdhci_sdma_transfer(s);
             }
         }
         break;