From 41cf872ed81988a1034315feabba118aa76577bc Mon Sep 17 00:00:00 2001 From: Andrzej Zaborowski Date: Tue, 3 Nov 2009 15:28:19 +0100 Subject: [PATCH] hw/sd: Support SDHC size cards This patch adds SHDC support (-sd sd.img, where sd.img is larger than 1GB) to qemu. Signed-off-by: Jason S. McMullan Signed-off-by: Andrzej Zaborowski --- hw/sd.c | 144 +++++++++++++++++++++++++++++++++++++--------------------------- 1 file changed, 84 insertions(+), 60 deletions(-) diff --git a/hw/sd.c b/hw/sd.c index 9888547..7b345e7 100644 --- a/hw/sd.c +++ b/hw/sd.c @@ -81,7 +81,7 @@ struct SDState { uint32_t vhs; int wp_switch; int *wp_groups; - uint32_t size; + uint64_t size; int blk_len; uint32_t erase_start; uint32_t erase_end; @@ -92,7 +92,7 @@ struct SDState { int spi; int current_cmd; int blk_written; - uint32_t data_start; + uint64_t data_start; uint32_t data_offset; uint8_t data[512]; qemu_irq readonly_cb; @@ -249,37 +249,59 @@ static const uint8_t sd_csd_rw_mask[16] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xfe, }; -static void sd_set_csd(SDState *sd, uint32_t size) +static void sd_set_csd(SDState *sd, uint64_t size) { uint32_t csize = (size >> (CMULT_SHIFT + HWBLOCK_SHIFT)) - 1; uint32_t sectsize = (1 << (SECTOR_SHIFT + 1)) - 1; uint32_t wpsize = (1 << (WPGROUP_SHIFT + 1)) - 1; - sd->csd[0] = 0x00; /* CSD structure */ - sd->csd[1] = 0x26; /* Data read access-time-1 */ - sd->csd[2] = 0x00; /* Data read access-time-2 */ - sd->csd[3] = 0x5a; /* Max. data transfer rate */ - sd->csd[4] = 0x5f; /* Card Command Classes */ - sd->csd[5] = 0x50 | /* Max. read data block length */ - HWBLOCK_SHIFT; - sd->csd[6] = 0xe0 | /* Partial block for read allowed */ - ((csize >> 10) & 0x03); - sd->csd[7] = 0x00 | /* Device size */ - ((csize >> 2) & 0xff); - sd->csd[8] = 0x3f | /* Max. read current */ - ((csize << 6) & 0xc0); - sd->csd[9] = 0xfc | /* Max. write current */ - ((CMULT_SHIFT - 2) >> 1); - sd->csd[10] = 0x40 | /* Erase sector size */ - (((CMULT_SHIFT - 2) << 7) & 0x80) | (sectsize >> 1); - sd->csd[11] = 0x00 | /* Write protect group size */ - ((sectsize << 7) & 0x80) | wpsize; - sd->csd[12] = 0x90 | /* Write speed factor */ - (HWBLOCK_SHIFT >> 2); - sd->csd[13] = 0x20 | /* Max. write data block length */ - ((HWBLOCK_SHIFT << 6) & 0xc0); - sd->csd[14] = 0x00; /* File format group */ - sd->csd[15] = (sd_crc7(sd->csd, 15) << 1) | 1; + if (size <= 0x40000000) { /* Standard Capacity SD */ + sd->csd[0] = 0x00; /* CSD structure */ + sd->csd[1] = 0x26; /* Data read access-time-1 */ + sd->csd[2] = 0x00; /* Data read access-time-2 */ + sd->csd[3] = 0x5a; /* Max. data transfer rate */ + sd->csd[4] = 0x5f; /* Card Command Classes */ + sd->csd[5] = 0x50 | /* Max. read data block length */ + HWBLOCK_SHIFT; + sd->csd[6] = 0xe0 | /* Partial block for read allowed */ + ((csize >> 10) & 0x03); + sd->csd[7] = 0x00 | /* Device size */ + ((csize >> 2) & 0xff); + sd->csd[8] = 0x3f | /* Max. read current */ + ((csize << 6) & 0xc0); + sd->csd[9] = 0xfc | /* Max. write current */ + ((CMULT_SHIFT - 2) >> 1); + sd->csd[10] = 0x40 | /* Erase sector size */ + (((CMULT_SHIFT - 2) << 7) & 0x80) | (sectsize >> 1); + sd->csd[11] = 0x00 | /* Write protect group size */ + ((sectsize << 7) & 0x80) | wpsize; + sd->csd[12] = 0x90 | /* Write speed factor */ + (HWBLOCK_SHIFT >> 2); + sd->csd[13] = 0x20 | /* Max. write data block length */ + ((HWBLOCK_SHIFT << 6) & 0xc0); + sd->csd[14] = 0x00; /* File format group */ + sd->csd[15] = (sd_crc7(sd->csd, 15) << 1) | 1; + } else { /* SDHC */ + size /= 512 * 1024; + size -= 1; + sd->csd[0] = 0x40; + sd->csd[1] = 0x0e; + sd->csd[2] = 0x00; + sd->csd[3] = 0x32; + sd->csd[4] = 0x5b; + sd->csd[5] = 0x59; + sd->csd[6] = 0x00; + sd->csd[7] = (size >> 16) & 0xff; + sd->csd[8] = (size >> 8) & 0xff; + sd->csd[9] = (size & 0xff); + sd->csd[10] = 0x7f; + sd->csd[11] = 0x80; + sd->csd[12] = 0x0a; + sd->csd[13] = 0x40; + sd->csd[14] = 0x00; + sd->csd[15] = 0x00; + sd->ocr |= 1 << 30; /* High Capacity SD Memort Card */ + } } static void sd_set_rca(SDState *sd) @@ -362,7 +384,7 @@ static void sd_response_r7_make(SDState *sd, uint8_t *response) static void sd_reset(SDState *sd, BlockDriverState *bdrv) { - uint32_t size; + uint64_t size; uint64_t sect; if (bdrv) { @@ -372,10 +394,7 @@ static void sd_reset(SDState *sd, BlockDriverState *bdrv) } sect <<= 9; - if (sect > 0x40000000) - size = 0x40000000; /* 1 gig */ - else - size = sect + 1; + size = sect + 1; sect = (size >> (HWBLOCK_SHIFT + SECTOR_SHIFT + WPGROUP_SHIFT)) + 1; @@ -460,7 +479,7 @@ static void sd_erase(SDState *sd) sd->card_status |= WP_ERASE_SKIP; } -static uint32_t sd_wpbits(SDState *sd, uint32_t addr) +static uint32_t sd_wpbits(SDState *sd, uint64_t addr) { uint32_t i, wpnum; uint32_t ret = 0; @@ -583,6 +602,7 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req) { uint32_t rca = 0x0000; + uint64_t addr = (sd->ocr & (1 << 30)) ? (uint64_t) req.arg << 9 : req.arg; if (sd_cmd_type[req.cmd] == sd_ac || sd_cmd_type[req.cmd] == sd_adtc) rca = req.arg >> 16; @@ -735,7 +755,7 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, break; sd->state = sd_sendingdata_state; memcpy(sd->data, sd->csd, 16); - sd->data_start = req.arg; + sd->data_start = addr; sd->data_offset = 0; return sd_r1; @@ -757,7 +777,7 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, break; sd->state = sd_sendingdata_state; memcpy(sd->data, sd->cid, 16); - sd->data_start = req.arg; + sd->data_start = addr; sd->data_offset = 0; return sd_r1; @@ -850,7 +870,7 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, switch (sd->state) { case sd_transfer_state: sd->state = sd_sendingdata_state; - sd->data_start = req.arg; + sd->data_start = addr; sd->data_offset = 0; if (sd->data_start + sd->blk_len > sd->size) @@ -866,7 +886,7 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, switch (sd->state) { case sd_transfer_state: sd->state = sd_sendingdata_state; - sd->data_start = req.arg; + sd->data_start = addr; sd->data_offset = 0; if (sd->data_start + sd->blk_len > sd->size) @@ -888,7 +908,7 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, if (sd->spi) break; sd->state = sd_receivingdata_state; - sd->data_start = req.arg; + sd->data_start = addr; sd->data_offset = 0; sd->blk_written = 0; @@ -914,7 +934,7 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, if (sd->spi) break; sd->state = sd_receivingdata_state; - sd->data_start = req.arg; + sd->data_start = addr; sd->data_offset = 0; sd->blk_written = 0; @@ -965,13 +985,13 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, case 28: /* CMD28: SET_WRITE_PROT */ switch (sd->state) { case sd_transfer_state: - if (req.arg >= sd->size) { + if (addr >= sd->size) { sd->card_status = ADDRESS_ERROR; return sd_r1b; } sd->state = sd_programming_state; - sd->wp_groups[req.arg >> (HWBLOCK_SHIFT + + sd->wp_groups[addr >> (HWBLOCK_SHIFT + SECTOR_SHIFT + WPGROUP_SHIFT)] = 1; /* Bzzzzzzztt .... Operation complete. */ sd->state = sd_transfer_state; @@ -985,13 +1005,13 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, case 29: /* CMD29: CLR_WRITE_PROT */ switch (sd->state) { case sd_transfer_state: - if (req.arg >= sd->size) { + if (addr >= sd->size) { sd->card_status = ADDRESS_ERROR; return sd_r1b; } sd->state = sd_programming_state; - sd->wp_groups[req.arg >> (HWBLOCK_SHIFT + + sd->wp_groups[addr >> (HWBLOCK_SHIFT + SECTOR_SHIFT + WPGROUP_SHIFT)] = 0; /* Bzzzzzzztt .... Operation complete. */ sd->state = sd_transfer_state; @@ -1007,7 +1027,7 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, case sd_transfer_state: sd->state = sd_sendingdata_state; *(uint32_t *) sd->data = sd_wpbits(sd, req.arg); - sd->data_start = req.arg; + sd->data_start = addr; sd->data_offset = 0; return sd_r1b; @@ -1322,11 +1342,12 @@ int sd_do_command(SDState *sd, SDRequest *req, return rsplen; } -/* No real need for 64 bit addresses here */ -static void sd_blk_read(SDState *sd, uint32_t addr, uint32_t len) +static void sd_blk_read(SDState *sd, uint64_t addr, uint32_t len) { - uint32_t end = addr + len; + uint64_t end = addr + len; + DPRINTF("sd_blk_read: addr = 0x%08llx, len = %d\n", + (unsigned long long) addr, len); if (!sd->bdrv || bdrv_read(sd->bdrv, addr >> 9, sd->buf, 1) == -1) { fprintf(stderr, "sd_blk_read: read error on host side\n"); return; @@ -1344,9 +1365,9 @@ static void sd_blk_read(SDState *sd, uint32_t addr, uint32_t len) memcpy(sd->data, sd->buf + (addr & 511), len); } -static void sd_blk_write(SDState *sd, uint32_t addr, uint32_t len) +static void sd_blk_write(SDState *sd, uint64_t addr, uint32_t len) { - uint32_t end = addr + len; + uint64_t end = addr + len; if ((addr & 511) || len < 512) if (!sd->bdrv || bdrv_read(sd->bdrv, addr >> 9, sd->buf, 1) == -1) { @@ -1505,6 +1526,7 @@ uint8_t sd_read_data(SDState *sd) { /* TODO: Append CRCs */ uint8_t ret; + int io_len; if (!sd->bdrv || !bdrv_is_inserted(sd->bdrv) || !sd->enable) return 0x00; @@ -1517,6 +1539,8 @@ uint8_t sd_read_data(SDState *sd) if (sd->card_status & (ADDRESS_ERROR | WP_VIOLATION)) return 0x00; + io_len = (sd->ocr & (1 << 30)) ? 512 : sd->blk_len; + switch (sd->current_cmd) { case 6: /* CMD6: SWITCH_FUNCTION */ ret = sd->data[sd->data_offset ++]; @@ -1535,13 +1559,13 @@ uint8_t sd_read_data(SDState *sd) case 11: /* CMD11: READ_DAT_UNTIL_STOP */ if (sd->data_offset == 0) - BLK_READ_BLOCK(sd->data_start, sd->blk_len); + BLK_READ_BLOCK(sd->data_start, io_len); ret = sd->data[sd->data_offset ++]; - if (sd->data_offset >= sd->blk_len) { - sd->data_start += sd->blk_len; + if (sd->data_offset >= io_len) { + sd->data_start += io_len; sd->data_offset = 0; - if (sd->data_start + sd->blk_len > sd->size) { + if (sd->data_start + io_len > sd->size) { sd->card_status |= ADDRESS_ERROR; break; } @@ -1557,22 +1581,22 @@ uint8_t sd_read_data(SDState *sd) case 17: /* CMD17: READ_SINGLE_BLOCK */ if (sd->data_offset == 0) - BLK_READ_BLOCK(sd->data_start, sd->blk_len); + BLK_READ_BLOCK(sd->data_start, io_len); ret = sd->data[sd->data_offset ++]; - if (sd->data_offset >= sd->blk_len) + if (sd->data_offset >= io_len) sd->state = sd_transfer_state; break; case 18: /* CMD18: READ_MULTIPLE_BLOCK */ if (sd->data_offset == 0) - BLK_READ_BLOCK(sd->data_start, sd->blk_len); + BLK_READ_BLOCK(sd->data_start, io_len); ret = sd->data[sd->data_offset ++]; - if (sd->data_offset >= sd->blk_len) { - sd->data_start += sd->blk_len; + if (sd->data_offset >= io_len) { + sd->data_start += io_len; sd->data_offset = 0; - if (sd->data_start + sd->blk_len > sd->size) { + if (sd->data_start + io_len > sd->size) { sd->card_status |= ADDRESS_ERROR; break; } -- 2.7.4