#include "hw.h"
#include "block.h"
+#include "block_int.h"
#include "sd.h"
//#define DEBUG_SD 1
#ifdef DEBUG_SD
-#define DPRINTF(fmt, args...) \
-do { printf("SD: " fmt , ##args); } while (0)
+#define DPRINTF(fmt, ...) \
+do { fprintf(stderr, "SD: " fmt , ## __VA_ARGS__); } while (0)
#else
-#define DPRINTF(fmt, args...) do {} while(0)
+#define DPRINTF(fmt, ...) do {} while(0)
#endif
typedef enum {
sd_r2_s, /* CSD register */
sd_r3, /* OCR register */
sd_r6 = 6, /* Published RCA response */
+ sd_r7, /* Operating voltage */
sd_r1b = -1,
} sd_rsp_type_t;
uint16_t rca;
uint32_t card_status;
uint8_t sd_status[64];
+ 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;
int pwd_len;
int function_group[6];
+ 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;
qemu_irq inserted_cb;
BlockDriverState *bdrv;
+ uint8_t *buf;
+
+ int enable;
};
static void sd_set_status(SDState *sd)
sd->card_status |= sd->state << 9;
}
-const sd_cmd_type_t sd_cmd_type[64] = {
+static const sd_cmd_type_t sd_cmd_type[64] = {
sd_bc, sd_none, sd_bcr, sd_bcr, sd_none, sd_none, sd_none, sd_ac,
- sd_none, sd_ac, sd_ac, sd_adtc, sd_ac, sd_ac, sd_none, sd_ac,
+ sd_bcr, sd_ac, sd_ac, sd_adtc, sd_ac, sd_ac, sd_none, sd_ac,
sd_ac, sd_adtc, sd_adtc, sd_none, sd_none, sd_none, sd_none, sd_none,
sd_adtc, sd_adtc, sd_adtc, sd_adtc, sd_ac, sd_ac, sd_adtc, sd_none,
sd_ac, sd_ac, sd_none, sd_none, sd_none, sd_none, sd_ac, sd_none,
sd_adtc, sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_none,
};
-const sd_cmd_type_t sd_acmd_type[64] = {
+static const sd_cmd_type_t sd_acmd_type[64] = {
sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_ac, sd_none,
sd_none, sd_none, sd_none, sd_none, sd_none, sd_adtc, sd_none, sd_none,
sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_adtc, sd_ac,
static void sd_set_ocr(SDState *sd)
{
- sd->ocr = 0x80fffff0;
+ /* All voltages OK, card power-up OK, Standard Capacity SD Memory Card */
+ sd->ocr = 0x80ffff00;
}
static void sd_set_scr(SDState *sd)
#define SECTOR_SHIFT 5 /* 16 kilobytes */
#define WPGROUP_SHIFT 7 /* 2 megs */
#define CMULT_SHIFT 9 /* 512 times HWBLOCK_SIZE */
-#define BLOCK_SIZE (1 << (HWBLOCK_SHIFT))
-#define SECTOR_SIZE (1 << (HWBLOCK_SHIFT + SECTOR_SHIFT))
#define WPGROUP_SIZE (1 << (HWBLOCK_SHIFT + SECTOR_SHIFT + WPGROUP_SHIFT))
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)
memset(sd->sd_status, 0, 64);
}
-static int sd_req_crc_validate(struct sd_request_s *req)
+static int sd_req_crc_validate(SDRequest *req)
{
uint8_t buffer[5];
buffer[0] = 0x40 | req->cmd;
return sd_crc7(buffer, 5) != req->crc; /* TODO */
}
-void sd_response_r1_make(SDState *sd,
- uint8_t *response, uint32_t last_status)
+static void sd_response_r1_make(SDState *sd,
+ uint8_t *response, uint32_t last_status)
{
uint32_t mask = CARD_STATUS_B ^ ILLEGAL_COMMAND;
uint32_t status;
response[3] = (status >> 0) & 0xff;
}
-void sd_response_r3_make(SDState *sd, uint8_t *response)
+static void sd_response_r3_make(SDState *sd, uint8_t *response)
{
response[0] = (sd->ocr >> 24) & 0xff;
response[1] = (sd->ocr >> 16) & 0xff;
response[3] = (sd->ocr >> 0) & 0xff;
}
-void sd_response_r6_make(SDState *sd, uint8_t *response)
+static void sd_response_r6_make(SDState *sd, uint8_t *response)
{
uint16_t arg;
uint16_t status;
response[3] = status & 0xff;
}
+static void sd_response_r7_make(SDState *sd, uint8_t *response)
+{
+ response[0] = (sd->vhs >> 24) & 0xff;
+ response[1] = (sd->vhs >> 16) & 0xff;
+ response[2] = (sd->vhs >> 8) & 0xff;
+ response[3] = (sd->vhs >> 0) & 0xff;
+}
+
static void sd_reset(SDState *sd, BlockDriverState *bdrv)
{
- uint32_t size;
+ uint64_t size;
uint64_t sect;
- bdrv_get_geometry(bdrv, §);
+ if (bdrv) {
+ bdrv_get_geometry(bdrv, §);
+ } else {
+ sect = 0;
+ }
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;
if (sd->wp_groups)
qemu_free(sd->wp_groups);
- sd->wp_switch = bdrv_is_read_only(bdrv);
+ sd->wp_switch = bdrv ? bdrv_is_read_only(bdrv) : 0;
sd->wp_groups = (int *) qemu_mallocz(sizeof(int) * sect);
memset(sd->function_group, 0, sizeof(int) * 6);
sd->erase_start = 0;
sd->pwd_len = 0;
}
-static void sd_cardchange(void *opaque)
+static void sd_cardchange(void *opaque, int reason)
{
SDState *sd = opaque;
+
+ if (!(reason & CHANGE_MEDIA)) {
+ return;
+ }
+
qemu_set_irq(sd->inserted_cb, bdrv_is_inserted(sd->bdrv));
if (bdrv_is_inserted(sd->bdrv)) {
sd_reset(sd, sd->bdrv);
}
}
-SDState *sd_init(BlockDriverState *bs)
+/* We do not model the chip select pin, so allow the board to select
+ whether card should be in SSI or MMC/SD mode. It is also up to the
+ board to ensure that ssi transfers only occur when the chip select
+ is asserted. */
+SDState *sd_init(BlockDriverState *bs, int is_spi)
{
SDState *sd;
sd = (SDState *) qemu_mallocz(sizeof(SDState));
+ sd->buf = qemu_blockalign(bs, 512);
+ sd->spi = is_spi;
+ sd->enable = 1;
sd_reset(sd, bs);
- bdrv_set_change_cb(sd->bdrv, sd_cardchange, sd);
+ if (sd->bdrv) {
+ bdrv_set_change_cb(sd->bdrv, sd_cardchange, sd);
+ }
return sd;
}
{
sd->readonly_cb = readonly;
sd->inserted_cb = insert;
- qemu_set_irq(readonly, bdrv_is_read_only(sd->bdrv));
- qemu_set_irq(insert, bdrv_is_inserted(sd->bdrv));
+ qemu_set_irq(readonly, sd->bdrv ? bdrv_is_read_only(sd->bdrv) : 0);
+ qemu_set_irq(insert, sd->bdrv ? bdrv_is_inserted(sd->bdrv) : 0);
}
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;
sd->card_status &= ~CARD_IS_LOCKED;
sd->pwd_len = 0;
/* Erasing the entire card here! */
- printf("SD: Card force-erased by CMD42\n");
+ fprintf(stderr, "SD: Card force-erased by CMD42\n");
return;
}
}
static sd_rsp_type_t sd_normal_command(SDState *sd,
- struct sd_request_s req)
+ 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;
case 0: /* CMD0: GO_IDLE_STATE */
switch (sd->state) {
case sd_inactive_state:
- return sd_r0;
+ return sd->spi ? sd_r1 : sd_r0;
default:
sd->state = sd_idle_state;
sd_reset(sd, sd->bdrv);
- return sd_r0;
+ return sd->spi ? sd_r1 : sd_r0;
}
break;
+ case 1: /* CMD1: SEND_OP_CMD */
+ if (!sd->spi)
+ goto bad_cmd;
+
+ sd->state = sd_transfer_state;
+ return sd_r1;
+
case 2: /* CMD2: ALL_SEND_CID */
+ if (sd->spi)
+ goto bad_cmd;
switch (sd->state) {
case sd_ready_state:
sd->state = sd_identification_state;
break;
case 3: /* CMD3: SEND_RELATIVE_ADDR */
+ if (sd->spi)
+ goto bad_cmd;
switch (sd->state) {
case sd_identification_state:
case sd_standby_state:
break;
case 4: /* CMD4: SEND_DSR */
+ if (sd->spi)
+ goto bad_cmd;
switch (sd->state) {
case sd_standby_state:
break;
}
break;
+ case 5: /* CMD5: reserved for SDIO cards */
+ sd->card_status |= ILLEGAL_COMMAND;
+ return sd_r0;
+
case 6: /* CMD6: SWITCH_FUNCTION */
+ if (sd->spi)
+ goto bad_cmd;
switch (sd->mode) {
case sd_data_transfer_mode:
sd_function_switch(sd, req.arg);
break;
case 7: /* CMD7: SELECT/DESELECT_CARD */
+ if (sd->spi)
+ goto bad_cmd;
switch (sd->state) {
case sd_standby_state:
if (sd->rca != rca)
}
break;
+ case 8: /* CMD8: SEND_IF_COND */
+ /* Physical Layer Specification Version 2.00 command */
+ switch (sd->state) {
+ case sd_idle_state:
+ sd->vhs = 0;
+
+ /* No response if not exactly one VHS bit is set. */
+ if (!(req.arg >> 8) || (req.arg >> ffs(req.arg & ~0xff)))
+ return sd->spi ? sd_r7 : sd_r0;
+
+ /* Accept. */
+ sd->vhs = req.arg;
+ return sd_r7;
+
+ default:
+ break;
+ }
+ break;
+
case 9: /* CMD9: SEND_CSD */
switch (sd->state) {
case sd_standby_state:
return sd_r2_s;
+ case sd_transfer_state:
+ if (!sd->spi)
+ break;
+ sd->state = sd_sendingdata_state;
+ memcpy(sd->data, sd->csd, 16);
+ sd->data_start = addr;
+ sd->data_offset = 0;
+ return sd_r1;
+
default:
break;
}
return sd_r2_i;
+ case sd_transfer_state:
+ if (!sd->spi)
+ break;
+ sd->state = sd_sendingdata_state;
+ memcpy(sd->data, sd->cid, 16);
+ sd->data_start = addr;
+ sd->data_offset = 0;
+ return sd_r1;
+
default:
break;
}
break;
case 11: /* CMD11: READ_DAT_UNTIL_STOP */
+ if (sd->spi)
+ goto bad_cmd;
switch (sd->state) {
case sd_transfer_state:
sd->state = sd_sendingdata_state;
break;
case 15: /* CMD15: GO_INACTIVE_STATE */
+ if (sd->spi)
+ goto bad_cmd;
switch (sd->mode) {
case sd_data_transfer_mode:
if (sd->rca != rca)
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)
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)
/* Block write commands (Class 4) */
case 24: /* CMD24: WRITE_SINGLE_BLOCK */
+ if (sd->spi)
+ goto unimplemented_cmd;
switch (sd->state) {
case sd_transfer_state:
+ /* Writing in SPI mode not implemented. */
+ 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;
break;
case 25: /* CMD25: WRITE_MULTIPLE_BLOCK */
+ if (sd->spi)
+ goto unimplemented_cmd;
switch (sd->state) {
case sd_transfer_state:
+ /* Writing in SPI mode not implemented. */
+ 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;
break;
case 26: /* CMD26: PROGRAM_CID */
+ if (sd->spi)
+ goto bad_cmd;
switch (sd->state) {
case sd_transfer_state:
sd->state = sd_receivingdata_state;
break;
case 27: /* CMD27: PROGRAM_CSD */
+ if (sd->spi)
+ goto unimplemented_cmd;
switch (sd->state) {
case sd_transfer_state:
sd->state = sd_receivingdata_state;
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;
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;
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;
/* Lock card commands (Class 7) */
case 42: /* CMD42: LOCK_UNLOCK */
+ if (sd->spi)
+ goto unimplemented_cmd;
switch (sd->state) {
case sd_transfer_state:
sd->state = sd_receivingdata_state;
}
break;
+ case 52:
+ case 53:
+ /* CMD52, CMD53: reserved for SDIO cards
+ * (see the SDIO Simplified Specification V2.0)
+ * Handle as illegal command but do not complain
+ * on stderr, as some OSes may use these in their
+ * probing for presence of an SDIO card.
+ */
+ sd->card_status |= ILLEGAL_COMMAND;
+ return sd_r0;
+
/* Application specific commands (Class 8) */
case 55: /* CMD55: APP_CMD */
if (sd->rca != rca)
return sd_r1;
case 56: /* CMD56: GEN_CMD */
- printf("SD: GEN_CMD 0x%08x\n", req.arg);
+ fprintf(stderr, "SD: GEN_CMD 0x%08x\n", req.arg);
switch (sd->state) {
case sd_transfer_state:
break;
default:
+ bad_cmd:
sd->card_status |= ILLEGAL_COMMAND;
- printf("SD: Unknown CMD%i\n", req.cmd);
+ fprintf(stderr, "SD: Unknown CMD%i\n", req.cmd);
+ return sd_r0;
+
+ unimplemented_cmd:
+ /* Commands that are recognised but not yet implemented in SPI mode. */
+ sd->card_status |= ILLEGAL_COMMAND;
+ fprintf(stderr, "SD: CMD%i not implemented in SPI mode\n", req.cmd);
return sd_r0;
}
sd->card_status |= ILLEGAL_COMMAND;
- printf("SD: CMD%i in a wrong state\n", req.cmd);
+ fprintf(stderr, "SD: CMD%i in a wrong state\n", req.cmd);
return sd_r0;
}
static sd_rsp_type_t sd_app_command(SDState *sd,
- struct sd_request_s req) {
- uint32_t rca;
-
- if (sd_cmd_type[req.cmd] == sd_ac || sd_cmd_type[req.cmd] == sd_adtc)
- rca = req.arg >> 16;
-
+ SDRequest req)
+{
DPRINTF("ACMD%d 0x%08x\n", req.cmd, req.arg);
switch (req.cmd) {
case 6: /* ACMD6: SET_BUS_WIDTH */
case 13: /* ACMD13: SD_STATUS */
switch (sd->state) {
case sd_transfer_state:
+ sd->state = sd_sendingdata_state;
sd->data_start = 0;
sd->data_offset = 0;
return sd_r1;
case sd_transfer_state:
*(uint32_t *) sd->data = sd->blk_written;
+ sd->state = sd_sendingdata_state;
sd->data_start = 0;
sd->data_offset = 0;
return sd_r1;
break;
case 41: /* ACMD41: SD_APP_OP_COND */
+ if (sd->spi) {
+ /* SEND_OP_CMD */
+ sd->state = sd_transfer_state;
+ return sd_r1;
+ }
switch (sd->state) {
case sd_idle_state:
/* We accept any voltage. 10000 V is nothing. */
return sd_normal_command(sd, req);
}
- printf("SD: ACMD%i in a wrong state\n", req.cmd);
+ fprintf(stderr, "SD: ACMD%i in a wrong state\n", req.cmd);
return sd_r0;
}
-int sd_do_command(SDState *sd, struct sd_request_s *req,
+int sd_do_command(SDState *sd, SDRequest *req,
uint8_t *response) {
uint32_t last_status = sd->card_status;
sd_rsp_type_t rtype;
int rsplen;
- if (!bdrv_is_inserted(sd->bdrv)) {
+ if (!sd->bdrv || !bdrv_is_inserted(sd->bdrv) || !sd->enable) {
return 0;
}
sd_cmd_class[req->cmd] == 7 ||
req->cmd == 16 || req->cmd == 55))) {
sd->card_status |= ILLEGAL_COMMAND;
- printf("SD: Card is locked\n");
+ fprintf(stderr, "SD: Card is locked\n");
return 0;
}
case sd_r2_i:
memcpy(response, sd->cid, sizeof(sd->cid));
- response[7] |= 1;
rsplen = 16;
break;
case sd_r2_s:
memcpy(response, sd->csd, sizeof(sd->csd));
- response[7] |= 1;
rsplen = 16;
break;
rsplen = 4;
break;
+ case sd_r7:
+ sd_response_r7_make(sd, response);
+ rsplen = 4;
+ break;
+
case sd_r0:
default:
rsplen = 0;
return rsplen;
}
-/* No real need for 64 bit addresses here */
-static void sd_blk_read(BlockDriverState *bdrv,
- void *data, uint32_t addr, uint32_t len)
+static void sd_blk_read(SDState *sd, uint64_t addr, uint32_t len)
{
- uint8_t buf[512];
- uint32_t end = addr + len;
+ uint64_t end = addr + len;
- if (!bdrv || bdrv_read(bdrv, addr >> 9, buf, 1) == -1) {
- printf("sd_blk_read: read error on host side\n");
+ 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;
}
if (end > (addr & ~511) + 512) {
- memcpy(data, buf + (addr & 511), 512 - (addr & 511));
+ memcpy(sd->data, sd->buf + (addr & 511), 512 - (addr & 511));
- if (bdrv_read(bdrv, end >> 9, buf, 1) == -1) {
- printf("sd_blk_read: read error on host side\n");
+ if (bdrv_read(sd->bdrv, end >> 9, sd->buf, 1) == -1) {
+ fprintf(stderr, "sd_blk_read: read error on host side\n");
return;
}
- memcpy(data + 512 - (addr & 511), buf, end & 511);
+ memcpy(sd->data + 512 - (addr & 511), sd->buf, end & 511);
} else
- memcpy(data, buf + (addr & 511), len);
+ memcpy(sd->data, sd->buf + (addr & 511), len);
}
-static void sd_blk_write(BlockDriverState *bdrv,
- void *data, uint32_t addr, uint32_t len)
+static void sd_blk_write(SDState *sd, uint64_t addr, uint32_t len)
{
- uint8_t buf[512];
- uint32_t end = addr + len;
+ uint64_t end = addr + len;
if ((addr & 511) || len < 512)
- if (!bdrv || bdrv_read(bdrv, addr >> 9, buf, 1) == -1) {
- printf("sd_blk_write: read error on host side\n");
+ if (!sd->bdrv || bdrv_read(sd->bdrv, addr >> 9, sd->buf, 1) == -1) {
+ fprintf(stderr, "sd_blk_write: read error on host side\n");
return;
}
if (end > (addr & ~511) + 512) {
- memcpy(buf + (addr & 511), data, 512 - (addr & 511));
- if (bdrv_write(bdrv, addr >> 9, buf, 1) == -1) {
- printf("sd_blk_write: write error on host side\n");
+ memcpy(sd->buf + (addr & 511), sd->data, 512 - (addr & 511));
+ if (bdrv_write(sd->bdrv, addr >> 9, sd->buf, 1) == -1) {
+ fprintf(stderr, "sd_blk_write: write error on host side\n");
return;
}
- if (bdrv_read(bdrv, end >> 9, buf, 1) == -1) {
- printf("sd_blk_write: read error on host side\n");
+ if (bdrv_read(sd->bdrv, end >> 9, sd->buf, 1) == -1) {
+ fprintf(stderr, "sd_blk_write: read error on host side\n");
return;
}
- memcpy(buf, data + 512 - (addr & 511), end & 511);
- if (bdrv_write(bdrv, end >> 9, buf, 1) == -1)
- printf("sd_blk_write: write error on host side\n");
+ memcpy(sd->buf, sd->data + 512 - (addr & 511), end & 511);
+ if (bdrv_write(sd->bdrv, end >> 9, sd->buf, 1) == -1)
+ fprintf(stderr, "sd_blk_write: write error on host side\n");
} else {
- memcpy(buf + (addr & 511), data, len);
- if (!bdrv || bdrv_write(bdrv, addr >> 9, buf, 1) == -1)
- printf("sd_blk_write: write error on host side\n");
+ memcpy(sd->buf + (addr & 511), sd->data, len);
+ if (!sd->bdrv || bdrv_write(sd->bdrv, addr >> 9, sd->buf, 1) == -1)
+ fprintf(stderr, "sd_blk_write: write error on host side\n");
}
}
-#define BLK_READ_BLOCK(a, len) sd_blk_read(sd->bdrv, sd->data, a, len)
-#define BLK_WRITE_BLOCK(a, len) sd_blk_write(sd->bdrv, sd->data, a, len)
+#define BLK_READ_BLOCK(a, len) sd_blk_read(sd, a, len)
+#define BLK_WRITE_BLOCK(a, len) sd_blk_write(sd, a, len)
#define APP_READ_BLOCK(a, len) memset(sd->data, 0xec, len)
#define APP_WRITE_BLOCK(a, len)
{
int i;
- if (!sd->bdrv || !bdrv_is_inserted(sd->bdrv))
+ if (!sd->bdrv || !bdrv_is_inserted(sd->bdrv) || !sd->enable)
return;
if (sd->state != sd_receivingdata_state) {
- printf("sd_write_data: not in Receiving-Data state\n");
+ fprintf(stderr, "sd_write_data: not in Receiving-Data state\n");
return;
}
break;
default:
- printf("sd_write_data: unknown command\n");
+ fprintf(stderr, "sd_write_data: unknown command\n");
break;
}
}
{
/* TODO: Append CRCs */
uint8_t ret;
+ int io_len;
- if (!sd->bdrv || !bdrv_is_inserted(sd->bdrv))
+ if (!sd->bdrv || !bdrv_is_inserted(sd->bdrv) || !sd->enable)
return 0x00;
if (sd->state != sd_sendingdata_state) {
- printf("sd_read_data: not in Sending-Data state\n");
+ fprintf(stderr, "sd_read_data: not in Sending-Data state\n");
return 0x00;
}
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 ++];
sd->state = sd_transfer_state;
break;
+ case 9: /* CMD9: SEND_CSD */
+ case 10: /* CMD10: SEND_CID */
+ ret = sd->data[sd->data_offset ++];
+
+ if (sd->data_offset >= 16)
+ sd->state = sd_transfer_state;
+ break;
+
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;
}
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;
}
break;
default:
- printf("sd_read_data: unknown command\n");
+ fprintf(stderr, "sd_read_data: unknown command\n");
return 0x00;
}
{
return sd->state == sd_sendingdata_state;
}
+
+void sd_enable(SDState *sd, int enable)
+{
+ sd->enable = enable;
+}
projects / qemu.git / blobdiff