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[sd] Correct ssr parsing + add write protect info

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Kostas Missos 2018-05-15 20:17:56 +03:00 committed by nwert
parent 54187226c8
commit e06d833cf8
3 changed files with 44 additions and 27 deletions
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5
ipl/main.c
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@ -574,9 +574,10 @@ void print_sdcard_info()
Speed Class: %d\n\
UHS Grade: U%d\n\
Video Class: V%d\n\
App perf class: A%d\n\n",
App perf class: A%d\n\
Write Protect: %d\n\n",
sd_storage.ssr.bus_width, sd_storage.ssr.speed_class, sd_storage.ssr.uhs_grade,
sd_storage.ssr.video_class, sd_storage.ssr.app_class);
sd_storage.ssr.video_class, sd_storage.ssr.app_class, sd_storage.csd.write_protect);
gfx_puts(&gfx_con, "Acquiring FAT volume info...\n\n");
f_getfree("", &sd_fs.free_clst, NULL);

29
ipl/sdmmc.c
View file

@ -824,9 +824,22 @@ int _sd_storage_enable_highspeed_high_volt(sdmmc_storage_t *storage, u8 *buf)
static void _sd_storage_parse_ssr(sdmmc_storage_t *storage)
{
u32 *raw_ssr = (u32 *)&(storage->raw_ssr);
storage->ssr.bus_width = unstuff_bits(raw_ssr, 510 - 384, 2) & SD_BUS_WIDTH_4 ? 4 : 1;
switch(unstuff_bits(raw_ssr, 440 - 384, 8))
// unstuff_bits supports only 4 u32 so break into 2 x 16byte groups
u32 raw_ssr1[4];
u32 raw_ssr2[4];
raw_ssr1[3] = *(u32 *)&storage->raw_ssr[12];
raw_ssr1[2] = *(u32 *)&storage->raw_ssr[8];
raw_ssr1[1] = *(u32 *)&storage->raw_ssr[4];
raw_ssr1[0] = *(u32 *)&storage->raw_ssr[0];
raw_ssr2[3] = *(u32 *)&storage->raw_ssr[28];
raw_ssr2[2] = *(u32 *)&storage->raw_ssr[24];
raw_ssr2[1] = *(u32 *)&storage->raw_ssr[20];
raw_ssr2[0] = *(u32 *)&storage->raw_ssr[16];
storage->ssr.bus_width = unstuff_bits(raw_ssr1, 510 - 384, 2) & SD_BUS_WIDTH_4 ? 4 : 1;
switch(unstuff_bits(raw_ssr1, 440 - 384, 8))
{
case 0:
storage->ssr.speed_class = 0;
@ -844,12 +857,13 @@ static void _sd_storage_parse_ssr(sdmmc_storage_t *storage)
storage->ssr.speed_class = 10;
break;
default:
storage->ssr.speed_class = unstuff_bits(raw_ssr, 440 - 384, 8);
storage->ssr.speed_class = unstuff_bits(raw_ssr1, 440 - 384, 8);
break;
}
storage->ssr.uhs_grade = unstuff_bits(raw_ssr, 396 - 384, 4);
storage->ssr.video_class = unstuff_bits(raw_ssr, 384 - 384, 8);
storage->ssr.app_class = unstuff_bits(raw_ssr + 16, 472 + 4 - 384, 4);
storage->ssr.uhs_grade = unstuff_bits(raw_ssr1, 396 - 384, 4);
storage->ssr.video_class = unstuff_bits(raw_ssr1, 384 - 384, 8);
storage->ssr.app_class = unstuff_bits(raw_ssr2, 336 - 256, 4);
}
static int _sd_storage_get_ssr(sdmmc_storage_t *storage, u8 *buf)
@ -914,6 +928,7 @@ static void _sd_storage_parse_csd(sdmmc_storage_t *storage)
storage->csd.structure = unstuff_bits(raw_csd, 126, 2);
storage->csd.cmdclass = unstuff_bits(raw_csd, 84, 12);
storage->csd.read_blkbits = unstuff_bits(raw_csd, 80, 4);
storage->csd.write_protect = unstuff_bits(raw_csd, 12, 2);
switch(storage->csd.structure)
{
case 0:

1
ipl/sdmmc.h
View file

@ -46,6 +46,7 @@ typedef struct _mmc_csd
u32 read_blkbits;
u32 write_blkbits;
u32 capacity;
u8 write_protect;
} mmc_csd_t;
typedef struct _mmc_ext_csd