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提交 2d7adea4 编写于 作者: A Andrzej Zaborowski
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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: NJason S. McMullan <jason.mcmullan@gmail.com>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>
上级 2d9f27d2
隐藏空白更改
内联 并排
Showing with 84 addition and 60 deletion
hw/sd.c
浏览文件 @ 2d7adea4
......@@ -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;
}
......
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