rich/mmc-utils
1
0 Fork 0
Code Issues Pull Requests Packages Projects Releases 1 Wiki Activity

Enhancement to do_status_get() function for detailed Response info

Browse Source 
This enhancement covers detailed status register decoding with
ERROR/STATUS information when host sends CMD13(with SQS=0)

Signed-off-by: Shankar Athanikar <shankar.ma@samsung.com>
Reviewed-by: Mohan Raj Veerasamy <mohanraj.v@samsung.com>
Link: https://lore.kernel.org/r/20220211120449.195052-1-shankar.ma@samsung.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Shankar Athanikar authored and Ulf Hansson committed 2022-02-17 16:15:21 +01:00
1 parent 4637a7c0df
commit 4303889c8b
2 files changed
+107
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

mmc.h
+22
View File
@@ -41,6 +41,28 @@
[1] Discard Enable
[0] Identify Write Blocks for
Erase (or TRIM Enable) R1b */
#define R1_OUT_OF_RANGE (1 << 31) /* er, c */
#define R1_ADDRESS_ERROR (1 << 30) /* erx, c */
#define R1_BLOCK_LEN_ERROR (1 << 29) /* er, c */
#define R1_ERASE_SEQ_ERROR (1 << 28) /* er, c */
#define R1_ERASE_PARAM (1 << 27) /* ex, c */
#define R1_WP_VIOLATION (1 << 26) /* erx, c */
#define R1_CARD_IS_LOCKED (1 << 25) /* sx, a */
#define R1_LOCK_UNLOCK_FAILED (1 << 24) /* erx, c */
#define R1_COM_CRC_ERROR (1 << 23) /* er, b */
#define R1_ILLEGAL_COMMAND (1 << 22) /* er, b */
#define R1_CARD_ECC_FAILED (1 << 21) /* ex, c */
#define R1_CC_ERROR (1 << 20) /* erx, c */
#define R1_ERROR (1 << 19) /* erx, c */
#define R1_CID_CSD_OVERWRITE (1 << 16) /* erx, c, CID/CSD overwrite */
#define R1_WP_ERASE_SKIP (1 << 15) /* sx, c */
#define R1_CARD_ECC_DISABLED (1 << 14) /* sx, a */
#define R1_ERASE_RESET (1 << 13) /* sr, c */
#define R1_READY_FOR_DATA (1 << 8) /* sx, a */
#define R1_EXCEPTION_EVENT (1 << 6) /* sr, a */
#define R1_APP_CMD (1 << 5) /* sr, c */
/*
* EXT_CSD fields
*/
mmc_cmds.c
+85
View File
@@ -848,6 +848,8 @@ int do_status_get(int nargs, char **argv)
__u32 response;
int fd, ret;
char *device;
const char *str;
__u8 state;
if (nargs != 2) {
fprintf(stderr, "Usage: mmc status get </path/to/mmcblkX>\n");
@@ -870,6 +872,89 @@ int do_status_get(int nargs, char **argv)
printf("SEND_STATUS response: 0x%08x\n", response);
if (response & R1_OUT_OF_RANGE)
printf("ERROR: ADDRESS_OUT_OF_RANGE\n");
if (response & R1_ADDRESS_ERROR)
printf("ERROR: ADDRESS_MISALIGN\n");
if (response & R1_BLOCK_LEN_ERROR)
printf("ERROR: BLOCK_LEN_ERROR\n");
if (response & R1_ERASE_SEQ_ERROR)
printf("ERROR: ERASE_SEQ_ERROR\n");
if (response & R1_ERASE_PARAM)
printf("ERROR: ERASE_PARAM_ERROR\n");
if (response & R1_WP_VIOLATION)
printf("ERROR: WP_VOILATION\n");
if (response & R1_CARD_IS_LOCKED)
printf("STATUS: DEVICE_IS_LOCKED\n");
if (response & R1_LOCK_UNLOCK_FAILED)
printf("ERROR: LOCK_UNLOCK_IS_FAILED\n");
if (response & R1_COM_CRC_ERROR)
printf("ERROR: COM_CRC_ERROR\n");
if (response & R1_ILLEGAL_COMMAND)
printf("ERROR: ILLEGAL_COMMAND\n");
if (response & R1_CARD_ECC_FAILED)
printf("ERROR: DEVICE_ECC_FAILED\n");
if (response & R1_CC_ERROR)
printf("ERROR: CC_ERROR\n");
if (response & R1_ERROR)
printf("ERROR: ERROR\n");
if (response & R1_CID_CSD_OVERWRITE)
printf("ERROR: CID/CSD OVERWRITE\n");
if (response & R1_WP_ERASE_SKIP)
printf("ERROR: WP_ERASE_SKIP\n");
if (response & R1_ERASE_RESET)
printf("ERROR: ERASE_RESET\n");
state = (response >> 9) & 0xF;
switch (state) {
case 0:
str = "IDLE";
break;
case 1:
str = "READY";
break;
case 2:
str = "IDENT";
break;
case 3:
str = "STDBY";
break;
case 4:
str = "TRANS";
break;
case 5:
str = "DATA";
break;
case 6:
str = "RCV";
break;
case 7:
str = "PRG";
break;
case 8:
str = "DIS";
break;
case 9:
str = "BTST";
break;
case 10:
str = "SLP";
break;
default:
printf("Attention : Device state is INVALID: Kindly check the Response\n");
goto out_free;
}
printf("DEVICE STATE: %s\n", str);
if (response & R1_READY_FOR_DATA)
printf("STATUS: READY_FOR_DATA\n");
if (response & R1_SWITCH_ERROR)
printf("ERROR: SWITCH_ERROR\n");
if (response & R1_EXCEPTION_EVENT)
printf("STATUS: EXCEPTION_EVENT\n"); /* Check EXCEPTION_EVENTS_STATUS fields for further actions */
if (response & R1_APP_CMD)
printf("STATUS: APP_CMD\n");
out_free:
close(fd);
return ret;
}