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Implement SD CMD8 and R7 from the newer SD Physical Spec Version 2.00.

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Remove bogus setting of bits 63 of R2 type responses.
Make some constants static to allow definitions by the same name for SDIO.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3850 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
balrog 2007-12-24 14:41:39 +00:00
parent a1daafd8df
commit 1b0889958e
1 changed files with 38 additions and 5 deletions
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43
hw/sd.c
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@ -49,6 +49,7 @@ 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;
@ -77,6 +78,7 @@ struct SDState {
uint16_t rca;
uint32_t card_status;
uint8_t sd_status[64];
uint32_t vhs;
int wp_switch;
int *wp_groups;
uint32_t size;
@ -126,9 +128,9 @@ 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,
@ -137,7 +139,7 @@ const sd_cmd_type_t sd_cmd_type[64] = {
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,
@ -190,6 +192,7 @@ static uint16_t sd_crc16(void *message, size_t width)
static void sd_set_ocr(SDState *sd)
{
/* All voltages OK, card power-up OK, Standard Capacity SD Memory Card */
sd->ocr = 0x80ffff80;
}
@ -349,6 +352,14 @@ static void sd_response_r6_make(SDState *sd, uint8_t *response)
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;
@ -685,6 +696,25 @@ static sd_rsp_type_t sd_normal_command(SDState *sd,
}
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:
@ -1238,13 +1268,11 @@ int sd_do_command(SDState *sd, struct sd_request_s *req,
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;
@ -1258,6 +1286,11 @@ int sd_do_command(SDState *sd, struct sd_request_s *req,
rsplen = 4;
break;
case sd_r7:
sd_response_r7_make(sd, response);
rsplen = 4;
break;
case sd_r0:
default:
rsplen = 0;