[v3,11/17] hw/sd/sdcard: Simplify sd_inactive_state handling

Commit Message

Philippe Mathieu-Daudé June 27, 2024, 4:22 p.m. UTC

Card entering sd_inactive_state powers off, and won't respond
anymore. Handle that once when entering sd_do_command().

Remove condition always true in sd_cmd_GO_IDLE_STATE().

Signed-off-by: Philippe Mathieu-Daudé <[e-mail]>
Tested-by: Cédric Le Goater <[e-mail]>
---
 hw/sd/sd.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

Patch

diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index fbdfafa3a6..7533a78cf6 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -1081,10 +1081,8 @@  static sd_rsp_type_t sd_cmd_unimplemented(SDState *sd, SDRequest req)
 /* CMD0 */
 static sd_rsp_type_t sd_cmd_GO_IDLE_STATE(SDState *sd, SDRequest req)
 {
-    if (sd->state != sd_inactive_state) {
-        sd->state = sd_idle_state;
-        sd_reset(DEVICE(sd));
-    }
+    sd->state = sd_idle_state;
+    sd_reset(DEVICE(sd));
 
     return sd_is_spi(sd) ? sd_r1 : sd_r0;
 }
@@ -1579,7 +1577,6 @@  static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req)
         switch (sd->state) {
         case sd_ready_state:
         case sd_identification_state:
-        case sd_inactive_state:
             return sd_illegal;
         case sd_idle_state:
             if (rca) {
@@ -1800,6 +1797,11 @@  int sd_do_command(SDState *sd, SDRequest *req,
         return 0;
     }
 
+    if (sd->state == sd_inactive_state) {
+        rtype = sd_illegal;
+        goto send_response;
+    }
+
     if (sd_req_crc_validate(req)) {
         sd->card_status |= COM_CRC_ERROR;
         rtype = sd_illegal;