[Qemu-devel] [PATCH 3/8] sdcard: Add a 'spec_version' property

["Philippe Mathieu-Daudé" <f4bug@amsat.org>]

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 include/hw/sd/sd.h |  4 ++++
 hw/sd/sd.c         | 11 +++++++++++
 2 files changed, 15 insertions(+)

diff --git a/include/hw/sd/sd.h b/include/hw/sd/sd.h
index 9bdb3c9285..49f22b0b89 100644
--- a/include/hw/sd/sd.h
+++ b/include/hw/sd/sd.h
@@ -54,6 +54,10 @@
 #define APP_CMD			(1 << 5)
 #define AKE_SEQ_ERROR		(1 << 3)
 
+enum SDPhySpecificationVersion {
+    SD_PHY_SPECv1_10_VERS     = 1,
+};
+
 typedef enum {
     SD_VOLTAGE_0_4V     = 400,  /* currently not supported */
     SD_VOLTAGE_1_8V     = 1800,
diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index 80e70dd93e..5ddd211114 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -91,6 +91,7 @@ struct SDState {
     uint8_t sd_status[64];
 
     /* Configurable properties */
+    uint8_t spec_version;
     BlockBackend *blk;
     bool spi;
 
@@ -2058,6 +2059,14 @@ static void sd_realize(DeviceState *dev, Error **errp)
 
     sd->proto_name = sd->spi ? "SPI" : "SD";
 
+    switch (sd->spec_version) {
+    case SD_PHY_SPECv1_10_VERS:
+        break;
+    default:
+        error_setg(errp, "Invalid SD card Spec version: %u", sd->spec_version);
+        return;
+    }
+
     if (sd->blk && blk_is_read_only(sd->blk)) {
         error_setg(errp, "Cannot use read-only drive as SD card");
         return;
@@ -2074,6 +2083,8 @@ static void sd_realize(DeviceState *dev, Error **errp)
 }
 
 static Property sd_properties[] = {
+    DEFINE_PROP_UINT8("spec_version", SDState,
+                      spec_version, SD_PHY_SPECv1_10_VERS),
     DEFINE_PROP_DRIVE("drive", SDState, blk),
     /* We do not model the chip select pin, so allow the board to select
      * whether card should be in SSI or MMC/SD mode.  It is also up to the
-- 
2.17.1