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hw/sd/sdcard: Simplify cmd_valid_while_locked() 

cmd_valid_while_locked() only needs to read SDRequest->cmd,
pass it directly and make it const.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630133912.9428-13-f4bug@amsat.org>
This commit is contained in:
Philippe Mathieu-Daudé 2018-06-26 14:46:44 -03:00
parent 9820502cad
commit ef6dd5f5c4
1 changed files with 5 additions and 6 deletions
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11
hw/sd/sd.c
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@ -1679,7 +1679,7 @@ static sd_rsp_type_t sd_app_command(SDState *sd,
return sd_illegal;
}
static int cmd_valid_while_locked(SDState *sd, SDRequest *req)
static int cmd_valid_while_locked(SDState *sd, const uint8_t cmd)
{
/* Valid commands in locked state:
* basic class (0)
@ -1690,13 +1690,12 @@ static int cmd_valid_while_locked(SDState *sd, SDRequest *req)
* Anything else provokes an "illegal command" response.
*/
if (sd->expecting_acmd) {
return req->cmd == 41 || req->cmd == 42;
return cmd == 41 || cmd == 42;
}
if (req->cmd == 16 || req->cmd == 55) {
if (cmd == 16 || cmd == 55) {
return 1;
}
return sd_cmd_class[req->cmd] == 0
|| sd_cmd_class[req->cmd] == 7;
return sd_cmd_class[cmd] == 0 || sd_cmd_class[cmd] == 7;
}
int sd_do_command(SDState *sd, SDRequest *req,
@ -1722,7 +1721,7 @@ int sd_do_command(SDState *sd, SDRequest *req,
}
if (sd->card_status & CARD_IS_LOCKED) {
if (!cmd_valid_while_locked(sd, req)) {
if (!cmd_valid_while_locked(sd, req->cmd)) {
sd->card_status |= ILLEGAL_COMMAND;
sd->expecting_acmd = false;
qemu_log_mask(LOG_GUEST_ERROR, "SD: Card is locked\n");