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Code Issues Releases Activity

[sdmmc] Fixes Part 2

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Now that the cid/csd/ssr/etc bytes/bitfields are correct:
* MMC/SD: Add cid/csd parsing and use new cid/csd variables
* SD: Add ssr (sd status) reading/parsing
This commit is contained in:
Kostas Missos 2018-05-14 01:33:42 +03:00 committed by nwert
parent acdc8b580c
commit 55262fe9fa
1 changed files with 171 additions and 10 deletions
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181
ipl/sdmmc.c
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@ -242,6 +242,60 @@ static int _mmc_storage_set_relative_addr(sdmmc_storage_t *storage)
return _sdmmc_storage_execute_cmd_type1(storage, MMC_SET_RELATIVE_ADDR, storage->rca << 16, 0, 0x10); return _sdmmc_storage_execute_cmd_type1(storage, MMC_SET_RELATIVE_ADDR, storage->rca << 16, 0, 0x10);
} }
static void _mmc_storage_parse_cid(sdmmc_storage_t *storage)
{
u32 *raw_cid = (u32 *)&(storage->raw_cid);
switch (storage->csd.mmca_vsn)
{
case 0: /* MMC v1.0 - v1.2 */
case 1: /* MMC v1.4 */
storage->cid.prod_name[6] = unstuff_bits(raw_cid, 48, 8);
storage->cid.manfid = unstuff_bits(raw_cid, 104, 24);
storage->cid.hwrev = unstuff_bits(raw_cid, 44, 4);
storage->cid.fwrev = unstuff_bits(raw_cid, 40, 4);
storage->cid.serial = unstuff_bits(raw_cid, 16, 24);
break;
case 2: /* MMC v2.0 - v2.2 */
case 3: /* MMC v3.1 - v3.3 */
case 4: /* MMC v4 */
storage->cid.manfid = unstuff_bits(raw_cid, 120, 8);
storage->cid.card_bga = unstuff_bits(raw_cid, 112, 2);
storage->cid.oemid = unstuff_bits(raw_cid, 104, 8);
storage->cid.prv = unstuff_bits(raw_cid, 48, 8);
storage->cid.serial = unstuff_bits(raw_cid, 16, 32);
break;
default:
break;
}
storage->cid.prod_name[0] = unstuff_bits(raw_cid, 96, 8);
storage->cid.prod_name[1] = unstuff_bits(raw_cid, 88, 8);
storage->cid.prod_name[2] = unstuff_bits(raw_cid, 80, 8);
storage->cid.prod_name[3] = unstuff_bits(raw_cid, 72, 8);
storage->cid.prod_name[4] = unstuff_bits(raw_cid, 64, 8);
storage->cid.prod_name[5] = unstuff_bits(raw_cid, 56, 8);
storage->cid.month = unstuff_bits(raw_cid, 12, 4);
storage->cid.year = unstuff_bits(raw_cid, 8, 4) + 1997;
if (storage->ext_csd.rev >= 5)
{
if (storage->cid.year < 2010)
storage->cid.year += 16;
}
}
static void _mmc_storage_parse_csd(sdmmc_storage_t *storage)
{
u32 *raw_csd = (u32 *)&(storage->raw_csd);
storage->csd.mmca_vsn = unstuff_bits(raw_csd, 122, 4);
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.capacity = (1 + unstuff_bits(raw_csd, 62, 12)) << (unstuff_bits(raw_csd, 47, 3) + 2);
}
static int _mmc_storage_parse_ext_csd(sdmmc_storage_t *storage, u8 *buf) static int _mmc_storage_parse_ext_csd(sdmmc_storage_t *storage, u8 *buf)
{ {
storage->ext_csd.rev = buf[EXT_CSD_REV]; storage->ext_csd.rev = buf[EXT_CSD_REV];
@ -417,6 +471,7 @@ int sdmmc_storage_init_mmc(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
if (!_sdmmc_storage_get_csd(storage, storage->raw_csd)) if (!_sdmmc_storage_get_csd(storage, storage->raw_csd))
return 0; return 0;
DPRINTF("[mmc] got csd\n"); DPRINTF("[mmc] got csd\n");
_mmc_storage_parse_csd(storage);
if (!sdmmc_setup_clock(storage->sdmmc, 1)) if (!sdmmc_setup_clock(storage->sdmmc, 1))
return 0; return 0;
@ -450,6 +505,7 @@ int sdmmc_storage_init_mmc(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
} }
free(ext_csd); free(ext_csd);
DPRINTF("[mmc] got ext_csd\n"); DPRINTF("[mmc] got ext_csd\n");
_mmc_storage_parse_cid(storage); //This needs to be after csd and ext_csd
//gfx_hexdump(&gfx_con, 0, ext_csd, 512); //gfx_hexdump(&gfx_con, 0, ext_csd, 512);
/* When auto BKOPS is enabled the mmc device should be powered all the time until we disable this and check status. /* When auto BKOPS is enabled the mmc device should be powered all the time until we disable this and check status.
@ -766,6 +822,111 @@ int _sd_storage_enable_highspeed_high_volt(sdmmc_storage_t *storage, u8 *buf)
return sdmmc_setup_clock(storage->sdmmc, 7); return sdmmc_setup_clock(storage->sdmmc, 7);
} }
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))
{
case 0:
storage->ssr.speed_class = 0;
break;
case 1:
storage->ssr.speed_class = 2;
break;
case 2:
storage->ssr.speed_class = 4;
break;
case 3:
storage->ssr.speed_class = 6;
break;
case 4:
storage->ssr.speed_class = 10;
break;
default:
storage->ssr.speed_class = unstuff_bits(raw_ssr, 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);
}
static int _sd_storage_get_ssr(sdmmc_storage_t *storage, u8 *buf)
{
sdmmc_cmd_t cmdbuf;
sdmmc_init_cmd(&cmdbuf, SD_APP_SD_STATUS, 0, SDMMC_RSP_TYPE_1, 0);
sdmmc_req_t reqbuf;
reqbuf.buf = buf;
reqbuf.blksize = 64;
reqbuf.num_sectors = 1;
reqbuf.is_write = 0;
reqbuf.is_multi_block = 0;
reqbuf.is_auto_cmd12 = 0;
if (!(storage->csd.cmdclass & CCC_APP_SPEC)) {
DPRINTF("[sd] ssr: Card lacks mandatory SD Status function\n");
return 0;
}
if (!_sd_storage_execute_app_cmd(storage, R1_STATE_TRAN, 0, &cmdbuf, &reqbuf, 0))
return 0;
u32 tmp = 0;
sdmmc_get_rsp(storage->sdmmc, &tmp, 4, SDMMC_RSP_TYPE_1);
//Prepare buffer for unstuff_bits
for (int i = 0; i < 64; i+=4)
{
storage->raw_ssr[i + 3] = buf[i];
storage->raw_ssr[i + 2] = buf[i + 1];
storage->raw_ssr[i + 1] = buf[i + 2];
storage->raw_ssr[i] = buf[i + 3];
}
_sd_storage_parse_ssr(storage);
//gfx_hexdump(&gfx_con, 0, storage->raw_ssr, 64);
return _sdmmc_storage_check_result(tmp);
}
static void _sd_storage_parse_cid(sdmmc_storage_t *storage)
{
u32 *raw_cid = (u32 *)&(storage->raw_cid);
storage->cid.manfid = unstuff_bits(raw_cid, 120, 8);
storage->cid.oemid = unstuff_bits(raw_cid, 104, 16);
storage->cid.prod_name[0] = unstuff_bits(raw_cid, 96, 8);
storage->cid.prod_name[1] = unstuff_bits(raw_cid, 88, 8);
storage->cid.prod_name[2] = unstuff_bits(raw_cid, 80, 8);
storage->cid.prod_name[3] = unstuff_bits(raw_cid, 72, 8);
storage->cid.prod_name[4] = unstuff_bits(raw_cid, 64, 8);
storage->cid.hwrev = unstuff_bits(raw_cid, 60, 4);
storage->cid.fwrev = unstuff_bits(raw_cid, 56, 4);
storage->cid.serial = unstuff_bits(raw_cid, 24, 32);
storage->cid.month = unstuff_bits(raw_cid, 8, 4);
storage->cid.year = unstuff_bits(raw_cid, 12, 8) + 2000;
}
static void _sd_storage_parse_csd(sdmmc_storage_t *storage)
{
u32 *raw_csd = (u32 *)&(storage->raw_csd);
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);
switch(storage->csd.structure)
{
case 0:
storage->csd.capacity = (1 + unstuff_bits(raw_csd, 62, 12)) << (unstuff_bits(raw_csd, 47, 3) + 2);
break;
case 1:
storage->csd.c_size = (1 + unstuff_bits(raw_csd, 48, 22));
storage->csd.capacity = storage->csd.c_size << 10;
storage->csd.read_blkbits = 9;
break;
}
}
int sdmmc_storage_init_sd(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32 bus_width, u32 type) int sdmmc_storage_init_sd(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32 bus_width, u32 type)
{ {
int is_version_1 = 0; int is_version_1 = 0;
@ -795,6 +956,7 @@ int sdmmc_storage_init_sd(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
if (!_sdmmc_storage_get_cid(storage, storage->raw_cid)) if (!_sdmmc_storage_get_cid(storage, storage->raw_cid))
return 0; return 0;
DPRINTF("[sd] got cid\n"); DPRINTF("[sd] got cid\n");
_sd_storage_parse_cid(storage);
if (!_sd_storage_get_rca(storage)) if (!_sd_storage_get_rca(storage))
return 0; return 0;
@ -805,22 +967,17 @@ int sdmmc_storage_init_sd(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
DPRINTF("[sd] got csd\n"); DPRINTF("[sd] got csd\n");
//Parse CSD. //Parse CSD.
u32 *csd = (u32 *)storage->csd; _sd_storage_parse_csd(storage);
u32 csd_struct = unstuff_bits(csd, 126, 2); switch (storage->csd.structure)
switch (csd_struct)
{ {
case 0: case 0:
storage->sec_cnt = (1 + unstuff_bits(csd, 62, 12)) << (unstuff_bits(csd, 47, 3) + 2); storage->sec_cnt = storage->csd.capacity;
break; break;
case 1: case 1:
storage->sec_cnt = (1 + unstuff_bits(csd, 48, 22)) << 10; storage->sec_cnt = storage->csd.c_size << 10;
break; break;
default: default:
DPRINTF("[sd] Unknown CSD structure %d\n", csd_struct); DPRINTF("[sd] Unknown CSD structure %d\n", storage->csd.structure);
//TODO: I've encountered this with one of my SD cards, but
// according to the spec only version 0 and 1 are
// supposed to be in use (mine was version 2).
//return 0;
break; break;
} }
@ -885,6 +1042,10 @@ int sdmmc_storage_init_sd(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
sdmmc_sd_clock_ctrl(sdmmc, 1); sdmmc_sd_clock_ctrl(sdmmc, 1);
// Parse additional card info from sd status
if (_sd_storage_get_ssr(storage, buf))
DPRINTF("[sd] got sd status\n");
free(buf); free(buf);
return 1; return 1;
} }