#include "hw.h"
#include "block.h"
#include "sd.h"
+#include "bitmap.h"
//#define DEBUG_SD 1
sd_illegal = -2,
} sd_rsp_type_t;
+enum SDCardModes {
+ sd_inactive,
+ sd_card_identification_mode,
+ sd_data_transfer_mode,
+};
+
+enum SDCardStates {
+ sd_inactive_state = -1,
+ sd_idle_state = 0,
+ sd_ready_state,
+ sd_identification_state,
+ sd_standby_state,
+ sd_transfer_state,
+ sd_sendingdata_state,
+ sd_receivingdata_state,
+ sd_programming_state,
+ sd_disconnect_state,
+};
+
struct SDState {
- enum {
- sd_inactive,
- sd_card_identification_mode,
- sd_data_transfer_mode,
- } mode;
- enum {
- sd_inactive_state = -1,
- sd_idle_state = 0,
- sd_ready_state,
- sd_identification_state,
- sd_standby_state,
- sd_transfer_state,
- sd_sendingdata_state,
- sd_receivingdata_state,
- sd_programming_state,
- sd_disconnect_state,
- } state;
+ uint32_t mode; /* current card mode, one of SDCardModes */
+ int32_t state; /* current card state, one of SDCardStates */
uint32_t ocr;
uint8_t scr[8];
uint8_t cid[16];
uint32_t card_status;
uint8_t sd_status[64];
uint32_t vhs;
- int wp_switch;
- int *wp_groups;
+ bool wp_switch;
+ unsigned long *wp_groups;
+ int32_t wpgrps_size;
uint64_t size;
- int blk_len;
+ uint32_t blk_len;
uint32_t erase_start;
uint32_t erase_end;
uint8_t pwd[16];
- int pwd_len;
- int function_group[6];
+ uint32_t pwd_len;
+ uint8_t function_group[6];
- int spi;
- int current_cmd;
+ bool spi;
+ uint8_t current_cmd;
/* True if we will handle the next command as an ACMD. Note that this does
* *not* track the APP_CMD status bit!
*/
- int expecting_acmd;
- int blk_written;
+ bool expecting_acmd;
+ uint32_t blk_written;
uint64_t data_start;
uint32_t data_offset;
uint8_t data[512];
BlockDriverState *bdrv;
uint8_t *buf;
- int enable;
+ bool enable;
};
static void sd_set_mode(SDState *sd)
status = ((sd->card_status >> 8) & 0xc000) |
((sd->card_status >> 6) & 0x2000) |
(sd->card_status & 0x1fff);
+ sd->card_status &= ~(CARD_STATUS_C & 0xc81fff);
response[0] = (arg >> 8) & 0xff;
response[1] = arg & 0xff;
response[3] = (sd->vhs >> 0) & 0xff;
}
+static inline uint64_t sd_addr_to_wpnum(uint64_t addr)
+{
+ return addr >> (HWBLOCK_SHIFT + SECTOR_SHIFT + WPGROUP_SHIFT);
+}
+
static void sd_reset(SDState *sd, BlockDriverState *bdrv)
{
uint64_t size;
}
size = sect << 9;
- sect = (size >> (HWBLOCK_SHIFT + SECTOR_SHIFT + WPGROUP_SHIFT)) + 1;
+ sect = sd_addr_to_wpnum(size) + 1;
sd->state = sd_idle_state;
sd->rca = 0x0000;
if (sd->wp_groups)
g_free(sd->wp_groups);
- sd->wp_switch = bdrv ? bdrv_is_read_only(bdrv) : 0;
- sd->wp_groups = (int *) g_malloc0(sizeof(int) * sect);
- memset(sd->function_group, 0, sizeof(int) * 6);
+ sd->wp_switch = bdrv ? bdrv_is_read_only(bdrv) : false;
+ sd->wpgrps_size = sect;
+ sd->wp_groups = bitmap_new(sd->wpgrps_size);
+ memset(sd->function_group, 0, sizeof(sd->function_group));
sd->erase_start = 0;
sd->erase_end = 0;
sd->size = size;
sd->blk_len = 0x200;
sd->pwd_len = 0;
+ sd->expecting_acmd = false;
}
static void sd_cardchange(void *opaque, bool load)
.change_media_cb = sd_cardchange,
};
+static const VMStateDescription sd_vmstate = {
+ .name = "sd-card",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(mode, SDState),
+ VMSTATE_INT32(state, SDState),
+ VMSTATE_UINT8_ARRAY(cid, SDState, 16),
+ VMSTATE_UINT8_ARRAY(csd, SDState, 16),
+ VMSTATE_UINT16(rca, SDState),
+ VMSTATE_UINT32(card_status, SDState),
+ VMSTATE_PARTIAL_BUFFER(sd_status, SDState, 1),
+ VMSTATE_UINT32(vhs, SDState),
+ VMSTATE_BITMAP(wp_groups, SDState, 0, wpgrps_size),
+ VMSTATE_UINT32(blk_len, SDState),
+ VMSTATE_UINT32(erase_start, SDState),
+ VMSTATE_UINT32(erase_end, SDState),
+ VMSTATE_UINT8_ARRAY(pwd, SDState, 16),
+ VMSTATE_UINT32(pwd_len, SDState),
+ VMSTATE_UINT8_ARRAY(function_group, SDState, 6),
+ VMSTATE_UINT8(current_cmd, SDState),
+ VMSTATE_BOOL(expecting_acmd, SDState),
+ VMSTATE_UINT32(blk_written, SDState),
+ VMSTATE_UINT64(data_start, SDState),
+ VMSTATE_UINT32(data_offset, SDState),
+ VMSTATE_UINT8_ARRAY(data, SDState, 512),
+ VMSTATE_BUFFER_UNSAFE(buf, SDState, 1, 512),
+ VMSTATE_BOOL(enable, SDState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
/* 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_init(BlockDriverState *bs, bool is_spi)
{
SDState *sd;
sd = (SDState *) g_malloc0(sizeof(SDState));
sd->buf = qemu_blockalign(bs, 512);
sd->spi = is_spi;
- sd->enable = 1;
+ sd->enable = true;
sd_reset(sd, bs);
if (sd->bdrv) {
bdrv_attach_dev_nofail(sd->bdrv, sd);
bdrv_set_dev_ops(sd->bdrv, &sd_block_ops, sd);
}
+ vmstate_register(NULL, -1, &sd_vmstate, sd);
return sd;
}
static void sd_erase(SDState *sd)
{
- int i, start, end;
+ int i;
+ uint64_t erase_start = sd->erase_start;
+ uint64_t erase_end = sd->erase_end;
+
if (!sd->erase_start || !sd->erase_end) {
sd->card_status |= ERASE_SEQ_ERROR;
return;
}
- start = sd->erase_start >>
- (HWBLOCK_SHIFT + SECTOR_SHIFT + WPGROUP_SHIFT);
- end = sd->erase_end >>
- (HWBLOCK_SHIFT + SECTOR_SHIFT + WPGROUP_SHIFT);
+ if (extract32(sd->ocr, OCR_CCS_BITN, 1)) {
+ /* High capacity memory card: erase units are 512 byte blocks */
+ erase_start *= 512;
+ erase_end *= 512;
+ }
+
+ erase_start = sd_addr_to_wpnum(erase_start);
+ erase_end = sd_addr_to_wpnum(erase_end);
sd->erase_start = 0;
sd->erase_end = 0;
sd->csd[14] |= 0x40;
- for (i = start; i <= end; i ++)
- if (sd->wp_groups[i])
+ for (i = erase_start; i <= erase_end; i++) {
+ if (test_bit(i, sd->wp_groups)) {
sd->card_status |= WP_ERASE_SKIP;
+ }
+ }
}
static uint32_t sd_wpbits(SDState *sd, uint64_t addr)
uint32_t i, wpnum;
uint32_t ret = 0;
- wpnum = addr >> (HWBLOCK_SHIFT + SECTOR_SHIFT + WPGROUP_SHIFT);
+ wpnum = sd_addr_to_wpnum(addr);
- for (i = 0; i < 32; i ++, wpnum ++, addr += WPGROUP_SIZE)
- if (addr < sd->size && sd->wp_groups[wpnum])
+ for (i = 0; i < 32; i++, wpnum++, addr += WPGROUP_SIZE) {
+ if (addr < sd->size && test_bit(wpnum, sd->wp_groups)) {
ret |= (1 << i);
+ }
+ }
return ret;
}
sd->data[66] = crc & 0xff;
}
-static inline int sd_wp_addr(SDState *sd, uint32_t addr)
+static inline bool sd_wp_addr(SDState *sd, uint64_t addr)
{
- return sd->wp_groups[addr >>
- (HWBLOCK_SHIFT + SECTOR_SHIFT + WPGROUP_SHIFT)];
+ return test_bit(sd_addr_to_wpnum(addr), sd->wp_groups);
}
static void sd_lock_command(SDState *sd)
sd->card_status |= LOCK_UNLOCK_FAILED;
return;
}
- memset(sd->wp_groups, 0, sizeof(int) * (sd->size >>
- (HWBLOCK_SHIFT + SECTOR_SHIFT + WPGROUP_SHIFT)));
+ bitmap_zero(sd->wp_groups, sd->wpgrps_size);
sd->csd[14] &= ~0x10;
sd->card_status &= ~CARD_IS_LOCKED;
sd->pwd_len = 0;
}
sd->state = sd_programming_state;
- sd->wp_groups[addr >> (HWBLOCK_SHIFT +
- SECTOR_SHIFT + WPGROUP_SHIFT)] = 1;
+ set_bit(sd_addr_to_wpnum(addr), sd->wp_groups);
/* Bzzzzzzztt .... Operation complete. */
sd->state = sd_transfer_state;
return sd_r1b;
}
sd->state = sd_programming_state;
- sd->wp_groups[addr >> (HWBLOCK_SHIFT +
- SECTOR_SHIFT + WPGROUP_SHIFT)] = 0;
+ clear_bit(sd_addr_to_wpnum(addr), sd->wp_groups);
/* Bzzzzzzztt .... Operation complete. */
sd->state = sd_transfer_state;
return sd_r1b;
if (sd->rca != rca)
return sd_r0;
- sd->expecting_acmd = 1;
+ sd->expecting_acmd = true;
sd->card_status |= APP_CMD;
return sd_r1;
if (sd->card_status & CARD_IS_LOCKED) {
if (!cmd_valid_while_locked(sd, req)) {
sd->card_status |= ILLEGAL_COMMAND;
- sd->expecting_acmd = 0;
+ sd->expecting_acmd = false;
fprintf(stderr, "SD: Card is locked\n");
rtype = sd_illegal;
goto send_response;
sd_set_mode(sd);
if (sd->expecting_acmd) {
- sd->expecting_acmd = 0;
+ sd->expecting_acmd = false;
rtype = sd_app_command(sd, *req);
} else {
rtype = sd_normal_command(sd, *req);
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) {
+ if (!sd->bdrv || bdrv_read(sd->bdrv, addr >> 9, sd->buf, 1) < 0) {
fprintf(stderr, "sd_blk_read: read error on host side\n");
return;
}
if (end > (addr & ~511) + 512) {
memcpy(sd->data, sd->buf + (addr & 511), 512 - (addr & 511));
- if (bdrv_read(sd->bdrv, end >> 9, sd->buf, 1) == -1) {
+ if (bdrv_read(sd->bdrv, end >> 9, sd->buf, 1) < 0) {
fprintf(stderr, "sd_blk_read: read error on host side\n");
return;
}
uint64_t end = addr + len;
if ((addr & 511) || len < 512)
- if (!sd->bdrv || bdrv_read(sd->bdrv, addr >> 9, sd->buf, 1) == -1) {
+ if (!sd->bdrv || bdrv_read(sd->bdrv, addr >> 9, sd->buf, 1) < 0) {
fprintf(stderr, "sd_blk_write: read error on host side\n");
return;
}
if (end > (addr & ~511) + 512) {
memcpy(sd->buf + (addr & 511), sd->data, 512 - (addr & 511));
- if (bdrv_write(sd->bdrv, addr >> 9, sd->buf, 1) == -1) {
+ if (bdrv_write(sd->bdrv, addr >> 9, sd->buf, 1) < 0) {
fprintf(stderr, "sd_blk_write: write error on host side\n");
return;
}
- if (bdrv_read(sd->bdrv, end >> 9, sd->buf, 1) == -1) {
+ if (bdrv_read(sd->bdrv, end >> 9, sd->buf, 1) < 0) {
fprintf(stderr, "sd_blk_write: read error on host side\n");
return;
}
memcpy(sd->buf, sd->data + 512 - (addr & 511), end & 511);
- if (bdrv_write(sd->bdrv, end >> 9, sd->buf, 1) == -1)
+ if (bdrv_write(sd->bdrv, end >> 9, sd->buf, 1) < 0) {
fprintf(stderr, "sd_blk_write: write error on host side\n");
+ }
} else {
memcpy(sd->buf + (addr & 511), sd->data, len);
- if (!sd->bdrv || bdrv_write(sd->bdrv, addr >> 9, sd->buf, 1) == -1)
+ if (!sd->bdrv || bdrv_write(sd->bdrv, addr >> 9, sd->buf, 1) < 0) {
fprintf(stderr, "sd_blk_write: write error on host side\n");
+ }
}
}
return ret;
}
-int sd_data_ready(SDState *sd)
+bool sd_data_ready(SDState *sd)
{
return sd->state == sd_sendingdata_state;
}
-void sd_enable(SDState *sd, int enable)
+void sd_enable(SDState *sd, bool enable)
{
sd->enable = enable;
}
projects / qemu.git / blobdiff