cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
err = mmc_wait_for_cmd(card->host, &cmd, 0);
- if ((err != MMC_ERR_NONE) || !(cmd.resp[0] & R1_APP_CMD))
+ if (err || !(cmd.resp[0] & R1_APP_CMD))
return (u32)-1;
memset(&cmd, 0, sizeof(struct mmc_command));
mmc_wait_for_req(card->host, &mrq);
- if (cmd.error != MMC_ERR_NONE || data.error != MMC_ERR_NONE)
+ if (cmd.error || data.error)
return (u32)-1;
blocks = ntohl(blocks);
mmc_send_if_cond(host, host->ocr_avail);
err = mmc_send_app_op_cond(host, 0, &ocr);
- if (err == MMC_ERR_NONE) {
+ if (!err) {
if (mmc_attach_sd(host, ocr))
mmc_power_off(host);
} else {
* searching for MMC cards.
*/
err = mmc_send_op_cond(host, 0, &ocr);
- if (err == MMC_ERR_NONE) {
+ if (!err) {
if (mmc_attach_mmc(host, ocr))
mmc_power_off(host);
} else {
BUG_ON(!card);
- err = MMC_ERR_FAILED;
+ err = -EIO;
if (card->csd.mmca_vsn < CSD_SPEC_VER_4)
- return MMC_ERR_NONE;
+ return 0;
/*
* As the ext_csd is so large and mostly unused, we don't store the
printk(KERN_ERR "%s: could not allocate a buffer to "
"receive the ext_csd. mmc v4 cards will be "
"treated as v3.\n", mmc_hostname(card->host));
- return MMC_ERR_FAILED;
+ return -ENOMEM;
}
err = mmc_send_ext_csd(card, ext_csd);
- if (err != MMC_ERR_NONE) {
+ if (err) {
/*
* High capacity cards should have this "magic" size
* stored in their CSD.
"EXT_CSD, performance might "
"suffer.\n",
mmc_hostname(card->host));
- err = MMC_ERR_NONE;
+ err = 0;
}
goto out;
}
/* The extra bit indicates that we support high capacity */
err = mmc_send_op_cond(host, ocr | (1 << 30), NULL);
- if (err != MMC_ERR_NONE)
+ if (err)
goto err;
/*
* Fetch CID from card.
*/
err = mmc_all_send_cid(host, cid);
- if (err != MMC_ERR_NONE)
+ if (err)
goto err;
if (oldcard) {
* Set card RCA.
*/
err = mmc_set_relative_addr(card);
- if (err != MMC_ERR_NONE)
+ if (err)
goto free_card;
mmc_set_bus_mode(host, MMC_BUSMODE_PUSHPULL);
* Fetch CSD from card.
*/
err = mmc_send_csd(card, card->raw_csd);
- if (err != MMC_ERR_NONE)
+ if (err)
goto free_card;
err = mmc_decode_csd(card);
* Select card, as all following commands rely on that.
*/
err = mmc_select_card(card);
- if (err != MMC_ERR_NONE)
+ if (err)
goto free_card;
if (!oldcard) {
* Fetch and process extened CSD.
*/
err = mmc_read_ext_csd(card);
- if (err != MMC_ERR_NONE)
+ if (err)
goto free_card;
}
(host->caps & MMC_CAP_MMC_HIGHSPEED)) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, 1);
- if (err != MMC_ERR_NONE)
+ if (err)
goto free_card;
mmc_card_set_highspeed(card);
(host->caps & MMC_CAP_4_BIT_DATA)) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_BUS_WIDTH, EXT_CSD_BUS_WIDTH_4);
- if (err != MMC_ERR_NONE)
+ if (err)
goto free_card;
mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
if (!oldcard)
host->card = card;
- return MMC_ERR_NONE;
+ return 0;
free_card:
if (!oldcard)
mmc_remove_card(card);
err:
- return MMC_ERR_FAILED;
+ return -EIO;
}
/*
mmc_release_host(host);
- if (err != MMC_ERR_NONE) {
+ if (err) {
mmc_remove(host);
mmc_claim_host(host);
err = mmc_init_card(host, host->ocr, host->card);
mmc_release_host(host);
- if (err != MMC_ERR_NONE) {
+ if (err) {
mmc_remove(host);
mmc_claim_host(host);
* Detect and init the card.
*/
err = mmc_init_card(host, host->ocr, NULL);
- if (err != MMC_ERR_NONE)
+ if (err)
goto err;
mmc_release_host(host);
}
err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
- if (err != MMC_ERR_NONE)
+ if (err)
return err;
- return MMC_ERR_NONE;
+ return 0;
}
int mmc_select_card(struct mmc_card *card)
for (i = 100; i; i--) {
err = mmc_wait_for_cmd(host, &cmd, 0);
- if (err != MMC_ERR_NONE)
+ if (err)
break;
if (cmd.resp[0] & MMC_CARD_BUSY || ocr == 0)
break;
- err = MMC_ERR_TIMEOUT;
+ err = -ETIMEDOUT;
mmc_delay(10);
}
cmd.flags = MMC_RSP_R2 | MMC_CMD_BCR;
err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
- if (err != MMC_ERR_NONE)
+ if (err)
return err;
memcpy(cid, cmd.resp, sizeof(u32) * 4);
- return MMC_ERR_NONE;
+ return 0;
}
int mmc_set_relative_addr(struct mmc_card *card)
cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES);
- if (err != MMC_ERR_NONE)
+ if (err)
return err;
- return MMC_ERR_NONE;
+ return 0;
}
int mmc_send_csd(struct mmc_card *card, u32 *csd)
cmd.flags = MMC_RSP_R2 | MMC_CMD_AC;
err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES);
- if (err != MMC_ERR_NONE)
+ if (err)
return err;
memcpy(csd, cmd.resp, sizeof(u32) * 4);
- return MMC_ERR_NONE;
+ return 0;
}
int mmc_send_ext_csd(struct mmc_card *card, u8 *ext_csd)
mmc_wait_for_req(card->host, &mrq);
- if (cmd.error != MMC_ERR_NONE)
+ if (cmd.error)
return cmd.error;
- if (data.error != MMC_ERR_NONE)
+ if (data.error)
return data.error;
- return MMC_ERR_NONE;
+ return 0;
}
int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value)
cmd.flags = MMC_RSP_R1B | MMC_CMD_AC;
err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES);
- if (err != MMC_ERR_NONE)
+ if (err)
return err;
- return MMC_ERR_NONE;
+ return 0;
}
int mmc_send_status(struct mmc_card *card, u32 *status)
cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES);
- if (err != MMC_ERR_NONE)
+ if (err)
return err;
if (status)
*status = cmd.resp[0];
- return MMC_ERR_NONE;
+ return 0;
}
u8 *status;
if (card->scr.sda_vsn < SCR_SPEC_VER_1)
- return MMC_ERR_NONE;
+ return 0;
if (!(card->csd.cmdclass & CCC_SWITCH)) {
printk(KERN_WARNING "%s: card lacks mandatory switch "
"function, performance might suffer.\n",
mmc_hostname(card->host));
- return MMC_ERR_NONE;
+ return 0;
}
- err = MMC_ERR_FAILED;
+ err = -EIO;
status = kmalloc(64, GFP_KERNEL);
if (!status) {
printk(KERN_ERR "%s: could not allocate a buffer for "
"switch capabilities.\n", mmc_hostname(card->host));
- return err;
+ return -ENOMEM;
}
err = mmc_sd_switch(card, 0, 0, 1, status);
- if (err != MMC_ERR_NONE) {
+ if (err) {
printk(KERN_WARNING "%s: problem reading switch "
"capabilities, performance might suffer.\n",
mmc_hostname(card->host));
- err = MMC_ERR_NONE;
+ err = 0;
goto out;
}
u8 *status;
if (card->scr.sda_vsn < SCR_SPEC_VER_1)
- return MMC_ERR_NONE;
+ return 0;
if (!(card->csd.cmdclass & CCC_SWITCH))
- return MMC_ERR_NONE;
+ return 0;
if (!(card->host->caps & MMC_CAP_SD_HIGHSPEED))
- return MMC_ERR_NONE;
+ return 0;
if (card->sw_caps.hs_max_dtr == 0)
- return MMC_ERR_NONE;
+ return 0;
- err = MMC_ERR_FAILED;
+ err = -EIO;
status = kmalloc(64, GFP_KERNEL);
if (!status) {
printk(KERN_ERR "%s: could not allocate a buffer for "
"switch capabilities.\n", mmc_hostname(card->host));
- return err;
+ return -ENOMEM;
}
err = mmc_sd_switch(card, 1, 0, 1, status);
- if (err != MMC_ERR_NONE)
+ if (err)
goto out;
if ((status[16] & 0xF) != 1) {
* block-addressed SDHC cards.
*/
err = mmc_send_if_cond(host, ocr);
- if (err == MMC_ERR_NONE)
+ if (!err)
ocr |= 1 << 30;
err = mmc_send_app_op_cond(host, ocr, NULL);
- if (err != MMC_ERR_NONE)
+ if (err)
goto err;
/*
* Fetch CID from card.
*/
err = mmc_all_send_cid(host, cid);
- if (err != MMC_ERR_NONE)
+ if (err)
goto err;
if (oldcard) {
* Set card RCA.
*/
err = mmc_send_relative_addr(host, &card->rca);
- if (err != MMC_ERR_NONE)
+ if (err)
goto free_card;
mmc_set_bus_mode(host, MMC_BUSMODE_PUSHPULL);
* Fetch CSD from card.
*/
err = mmc_send_csd(card, card->raw_csd);
- if (err != MMC_ERR_NONE)
+ if (err)
goto free_card;
err = mmc_decode_csd(card);
* Select card, as all following commands rely on that.
*/
err = mmc_select_card(card);
- if (err != MMC_ERR_NONE)
+ if (err)
goto free_card;
if (!oldcard) {
* Fetch SCR from card.
*/
err = mmc_app_send_scr(card, card->raw_scr);
- if (err != MMC_ERR_NONE)
+ if (err)
goto free_card;
err = mmc_decode_scr(card);
* Fetch switch information from card.
*/
err = mmc_read_switch(card);
- if (err != MMC_ERR_NONE)
+ if (err)
goto free_card;
}
* Attempt to change to high-speed (if supported)
*/
err = mmc_switch_hs(card);
- if (err != MMC_ERR_NONE)
+ if (err)
goto free_card;
/*
if ((host->caps & MMC_CAP_4_BIT_DATA) &&
(card->scr.bus_widths & SD_SCR_BUS_WIDTH_4)) {
err = mmc_app_set_bus_width(card, MMC_BUS_WIDTH_4);
- if (err != MMC_ERR_NONE)
+ if (err)
goto free_card;
mmc_set_bus_width(host, MMC_BUS_WIDTH_4);
if (!oldcard)
host->card = card;
- return MMC_ERR_NONE;
+ return 0;
free_card:
if (!oldcard)
mmc_remove_card(card);
err:
- return MMC_ERR_FAILED;
+ return -EIO;
}
/*
mmc_release_host(host);
- if (err != MMC_ERR_NONE) {
+ if (err) {
mmc_sd_remove(host);
mmc_claim_host(host);
err = mmc_sd_init_card(host, host->ocr, host->card);
mmc_release_host(host);
- if (err != MMC_ERR_NONE) {
+ if (err) {
mmc_sd_remove(host);
mmc_claim_host(host);
* Detect and init the card.
*/
err = mmc_sd_init_card(host, host->ocr, NULL);
- if (err != MMC_ERR_NONE)
+ if (err)
goto err;
mmc_release_host(host);
}
err = mmc_wait_for_cmd(host, &cmd, 0);
- if (err != MMC_ERR_NONE)
+ if (err)
return err;
/* Check that card supported application commands */
if (!(cmd.resp[0] & R1_APP_CMD))
- return MMC_ERR_FAILED;
+ return -EOPNOTSUPP;
- return MMC_ERR_NONE;
+ return 0;
}
/**
BUG_ON(!cmd);
BUG_ON(retries < 0);
- err = MMC_ERR_INVALID;
+ err = -EIO;
/*
* We have to resend MMC_APP_CMD for each attempt so
memset(&mrq, 0, sizeof(struct mmc_request));
err = mmc_app_cmd(host, card);
- if (err != MMC_ERR_NONE)
+ if (err)
continue;
memset(&mrq, 0, sizeof(struct mmc_request));
mmc_wait_for_req(host, &mrq);
err = cmd->error;
- if (cmd->error == MMC_ERR_NONE)
+ if (!cmd->error)
break;
}
cmd.arg = SD_BUS_WIDTH_4;
break;
default:
- return MMC_ERR_INVALID;
+ return -EINVAL;
}
err = mmc_wait_for_app_cmd(card->host, card, &cmd, MMC_CMD_RETRIES);
- if (err != MMC_ERR_NONE)
+ if (err)
return err;
- return MMC_ERR_NONE;
+ return 0;
}
int mmc_send_app_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr)
for (i = 100; i; i--) {
err = mmc_wait_for_app_cmd(host, NULL, &cmd, MMC_CMD_RETRIES);
- if (err != MMC_ERR_NONE)
+ if (err)
break;
if (cmd.resp[0] & MMC_CARD_BUSY || ocr == 0)
break;
- err = MMC_ERR_TIMEOUT;
+ err = -ETIMEDOUT;
mmc_delay(10);
}
cmd.flags = MMC_RSP_R7 | MMC_CMD_BCR;
err = mmc_wait_for_cmd(host, &cmd, 0);
- if (err != MMC_ERR_NONE)
+ if (err)
return err;
if ((cmd.resp[0] & 0xFF) != test_pattern)
- return MMC_ERR_FAILED;
+ return -EIO;
- return MMC_ERR_NONE;
+ return 0;
}
int mmc_send_relative_addr(struct mmc_host *host, unsigned int *rca)
cmd.flags = MMC_RSP_R6 | MMC_CMD_BCR;
err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
- if (err != MMC_ERR_NONE)
+ if (err)
return err;
*rca = cmd.resp[0] >> 16;
- return MMC_ERR_NONE;
+ return 0;
}
int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
BUG_ON(!scr);
err = mmc_app_cmd(card->host, card);
- if (err != MMC_ERR_NONE)
+ if (err)
return err;
memset(&mrq, 0, sizeof(struct mmc_request));
mmc_wait_for_req(card->host, &mrq);
- if (cmd.error != MMC_ERR_NONE)
+ if (cmd.error)
return cmd.error;
- if (data.error != MMC_ERR_NONE)
+ if (data.error)
return data.error;
scr[0] = ntohl(scr[0]);
scr[1] = ntohl(scr[1]);
- return MMC_ERR_NONE;
+ return 0;
}
int mmc_sd_switch(struct mmc_card *card, int mode, int group,
mmc_wait_for_req(card->host, &mrq);
- if (cmd.error != MMC_ERR_NONE)
+ if (cmd.error)
return cmd.error;
- if (data.error != MMC_ERR_NONE)
+ if (data.error)
return data.error;
- return MMC_ERR_NONE;
+ return 0;
}
AT91_MCI_RENDE | AT91_MCI_RTOE | AT91_MCI_DCRCE |
AT91_MCI_DTOE | AT91_MCI_OVRE | AT91_MCI_UNRE)) {
if ((status & AT91_MCI_RCRCE) && !(mmc_resp_type(cmd) & MMC_RSP_CRC)) {
- cmd->error = MMC_ERR_NONE;
+ cmd->error = 0;
}
else {
if (status & (AT91_MCI_RTOE | AT91_MCI_DTOE))
- cmd->error = MMC_ERR_TIMEOUT;
+ cmd->error = -ETIMEDOUT;
else if (status & (AT91_MCI_RCRCE | AT91_MCI_DCRCE))
- cmd->error = MMC_ERR_BADCRC;
- else if (status & (AT91_MCI_OVRE | AT91_MCI_UNRE))
- cmd->error = MMC_ERR_FIFO;
+ cmd->error = -EILSEQ;
else
- cmd->error = MMC_ERR_FAILED;
+ cmd->error = -EIO;
pr_debug("Error detected and set to %d (cmd = %d, retries = %d)\n",
cmd->error, cmd->opcode, cmd->retries);
}
}
else
- cmd->error = MMC_ERR_NONE;
+ cmd->error = 0;
at91_mci_process_next(host);
}
default:
printk(KERN_INFO "au1xmmc: unhandled response type %02x\n",
mmc_resp_type(cmd));
- return MMC_ERR_INVALID;
+ return -EINVAL;
}
if (flags & MMC_DATA_READ) {
IRQ_ON(host, SD_CONFIG_CR);
}
- return MMC_ERR_NONE;
+ return 0;
}
static void au1xmmc_data_complete(struct au1xmmc_host *host, u32 status)
while((host->flags & HOST_F_XMIT) && (status & SD_STATUS_DB))
status = au_readl(HOST_STATUS(host));
- data->error = MMC_ERR_NONE;
+ data->error = 0;
dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len, host->dma.dir);
/* Process any errors */
crc |= ((status & 0x07) == 0x02) ? 0 : 1;
if (crc)
- data->error = MMC_ERR_BADCRC;
+ data->error = -EILSEQ;
/* Clear the CRC bits */
au_writel(SD_STATUS_WC | SD_STATUS_RC, HOST_STATUS(host));
data->bytes_xfered = 0;
- if (data->error == MMC_ERR_NONE) {
+ if (!data->error) {
if (host->flags & HOST_F_DMA) {
u32 chan = DMA_CHANNEL(host);
return;
cmd = mrq->cmd;
- cmd->error = MMC_ERR_NONE;
+ cmd->error = 0;
if (cmd->flags & MMC_RSP_PRESENT) {
if (cmd->flags & MMC_RSP_136) {
/* Figure out errors */
if (status & (SD_STATUS_SC | SD_STATUS_WC | SD_STATUS_RC))
- cmd->error = MMC_ERR_BADCRC;
+ cmd->error = -EILSEQ;
trans = host->flags & (HOST_F_XMIT | HOST_F_RECV);
- if (!trans || cmd->error != MMC_ERR_NONE) {
+ if (!trans || cmd->error) {
IRQ_OFF(host, SD_CONFIG_TH | SD_CONFIG_RA|SD_CONFIG_RF);
tasklet_schedule(&host->finish_task);
data->sg_len, host->dma.dir);
if (host->dma.len == 0)
- return MMC_ERR_TIMEOUT;
+ return -ETIMEDOUT;
au_writel(data->blksz - 1, HOST_BLKSIZE(host));
//IRQ_ON(host, SD_CONFIG_RA|SD_CONFIG_RF);
}
- return MMC_ERR_NONE;
+ return 0;
dataerr:
dma_unmap_sg(mmc_dev(host->mmc),data->sg,data->sg_len,host->dma.dir);
- return MMC_ERR_TIMEOUT;
+ return -ETIMEDOUT;
}
/* static void au1xmmc_request
struct au1xmmc_host *host = mmc_priv(mmc);
unsigned int flags = 0;
- int ret = MMC_ERR_NONE;
+ int ret = 0;
WARN_ON(irqs_disabled());
WARN_ON(host->status != HOST_S_IDLE);
ret = au1xmmc_prepare_data(host, mrq->data);
}
- if (ret == MMC_ERR_NONE)
+ if (!ret)
ret = au1xmmc_send_command(host, 0, mrq->cmd, flags);
- if (ret != MMC_ERR_NONE) {
+ if (ret) {
mrq->cmd->error = ret;
au1xmmc_finish_request(host);
}
if (host->mrq && (status & STATUS_TIMEOUT)) {
if (status & SD_STATUS_RAT)
- host->mrq->cmd->error = MMC_ERR_TIMEOUT;
+ host->mrq->cmd->error = -ETIMEDOUT;
else if (status & SD_STATUS_DT)
- host->mrq->data->error = MMC_ERR_TIMEOUT;
+ host->mrq->data->error = -ETIMEDOUT;
/* In PIO mode, interrupts might still be enabled */
IRQ_OFF(host, SD_CONFIG_NE | SD_CONFIG_TH);
if ( stat & STATUS_ERR_MASK ) {
dev_dbg(mmc_dev(host->mmc), "request failed. status: 0x%08x\n",stat);
if(stat & (STATUS_CRC_READ_ERR | STATUS_CRC_WRITE_ERR))
- data->error = MMC_ERR_BADCRC;
+ data->error = -EILSEQ;
else if(stat & STATUS_TIME_OUT_READ)
- data->error = MMC_ERR_TIMEOUT;
+ data->error = -ETIMEDOUT;
else
- data->error = MMC_ERR_FAILED;
+ data->error = -EIO;
} else {
data->bytes_xfered = host->dma_size;
}
if (stat & STATUS_TIME_OUT_RESP) {
dev_dbg(mmc_dev(host->mmc), "CMD TIMEOUT\n");
- cmd->error = MMC_ERR_TIMEOUT;
+ cmd->error = -ETIMEDOUT;
} else if (stat & STATUS_RESP_CRC_ERR && cmd->flags & MMC_RSP_CRC) {
dev_dbg(mmc_dev(host->mmc), "cmd crc error\n");
- cmd->error = MMC_ERR_BADCRC;
+ cmd->error = -EILSEQ;
}
if(cmd->flags & MMC_RSP_PRESENT) {
dev_dbg(mmc_dev(host->mmc), "RESP 0x%08x, 0x%08x, 0x%08x, 0x%08x, error %d\n",
cmd->resp[0], cmd->resp[1], cmd->resp[2], cmd->resp[3], cmd->error);
- if (data && (cmd->error == MMC_ERR_NONE) && !(stat & STATUS_ERR_MASK)) {
+ if (data && !cmd->error && !(stat & STATUS_ERR_MASK)) {
if (host->req->data->flags & MMC_DATA_WRITE) {
/* Wait for FIFO to be empty before starting DMA write */
if(imxmci_busy_wait_for_status(host, &stat,
STATUS_APPL_BUFF_FE,
40, "imxmci_cmd_done DMA WR") < 0) {
- cmd->error = MMC_ERR_FIFO;
+ cmd->error = -EIO;
imxmci_finish_data(host, stat);
if(host->req)
imxmci_finish_request(host, host->req);
}
if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT|MCI_TXUNDERRUN|MCI_RXOVERRUN)) {
if (status & MCI_DATACRCFAIL)
- data->error = MMC_ERR_BADCRC;
+ data->error = -EILSEQ;
else if (status & MCI_DATATIMEOUT)
- data->error = MMC_ERR_TIMEOUT;
+ data->error = -ETIMEDOUT;
else if (status & (MCI_TXUNDERRUN|MCI_RXOVERRUN))
- data->error = MMC_ERR_FIFO;
+ data->error = -EIO;
status |= MCI_DATAEND;
/*
cmd->resp[3] = readl(base + MMCIRESPONSE3);
if (status & MCI_CMDTIMEOUT) {
- cmd->error = MMC_ERR_TIMEOUT;
+ cmd->error = -ETIMEDOUT;
} else if (status & MCI_CMDCRCFAIL && cmd->flags & MMC_RSP_CRC) {
- cmd->error = MMC_ERR_BADCRC;
+ cmd->error = -EILSEQ;
}
- if (!cmd->data || cmd->error != MMC_ERR_NONE) {
+ if (!cmd->data || cmd->error) {
if (host->data)
mmci_stop_data(host);
mmci_request_end(host, cmd->mrq);
enum dma_data_direction dma_data_dir;
BUG_ON(host->dma_ch < 0);
- if (data->error != MMC_ERR_NONE)
+ if (data->error)
omap_stop_dma(host->dma_ch);
/* Release DMA channel lazily */
mod_timer(&host->dma_timer, jiffies + HZ);
}
}
- if (host->data == NULL || cmd->error != MMC_ERR_NONE) {
+ if (host->data == NULL || cmd->error) {
host->mrq = NULL;
clk_disable(host->fclk);
mmc_request_done(host->mmc, cmd->mrq);
if (status & OMAP_MMC_STAT_DATA_TOUT) {
dev_dbg(mmc_dev(host->mmc), "data timeout\n");
if (host->data) {
- host->data->error |= MMC_ERR_TIMEOUT;
+ host->data->error = -ETIMEDOUT;
transfer_error = 1;
}
}
if (status & OMAP_MMC_STAT_DATA_CRC) {
if (host->data) {
- host->data->error |= MMC_ERR_BADCRC;
+ host->data->error = -EILSEQ;
dev_dbg(mmc_dev(host->mmc),
"data CRC error, bytes left %d\n",
host->total_bytes_left);
dev_err(mmc_dev(host->mmc),
"command timeout, CMD %d\n",
host->cmd->opcode);
- host->cmd->error = MMC_ERR_TIMEOUT;
+ host->cmd->error = -ETIMEDOUT;
end_command = 1;
}
}
dev_err(mmc_dev(host->mmc),
"command CRC error (CMD%d, arg 0x%08x)\n",
host->cmd->opcode, host->cmd->arg);
- host->cmd->error = MMC_ERR_BADCRC;
+ host->cmd->error = -EILSEQ;
end_command = 1;
} else
dev_err(mmc_dev(host->mmc),
}
if (stat & STAT_TIME_OUT_RESPONSE) {
- cmd->error = MMC_ERR_TIMEOUT;
+ cmd->error = -ETIMEDOUT;
} else if (stat & STAT_RES_CRC_ERR && cmd->flags & MMC_RSP_CRC) {
#ifdef CONFIG_PXA27x
/*
pr_debug("ignoring CRC from command %d - *risky*\n", cmd->opcode);
} else
#endif
- cmd->error = MMC_ERR_BADCRC;
+ cmd->error = -EILSEQ;
}
pxamci_disable_irq(host, END_CMD_RES);
- if (host->data && cmd->error == MMC_ERR_NONE) {
+ if (host->data && !cmd->error) {
pxamci_enable_irq(host, DATA_TRAN_DONE);
} else {
pxamci_finish_request(host, host->mrq);
host->dma_dir);
if (stat & STAT_READ_TIME_OUT)
- data->error = MMC_ERR_TIMEOUT;
+ data->error = -ETIMEDOUT;
else if (stat & (STAT_CRC_READ_ERROR|STAT_CRC_WRITE_ERROR))
- data->error = MMC_ERR_BADCRC;
+ data->error = -EILSEQ;
/*
* There appears to be a hardware design bug here. There seems to
* This means that if there was an error on any block, we mark all
* data blocks as being in error.
*/
- if (data->error == MMC_ERR_NONE)
+ if (!data->error)
data->bytes_xfered = data->blocks * data->blksz;
else
data->bytes_xfered = 0;
* Controller doesn't count down when in single block mode.
*/
if (data->blocks == 1)
- blocks = (data->error == MMC_ERR_NONE) ? 0 : 1;
+ blocks = (data->error == 0) ? 0 : 1;
else
blocks = readw(host->ioaddr + SDHCI_BLOCK_COUNT);
data->bytes_xfered = data->blksz * (data->blocks - blocks);
- if ((data->error == MMC_ERR_NONE) && blocks) {
+ if (!data->error && blocks) {
printk(KERN_ERR "%s: Controller signalled completion even "
"though there were blocks left.\n",
mmc_hostname(host->mmc));
- data->error = MMC_ERR_FAILED;
+ data->error = -EIO;
}
if (data->stop) {
* The controller needs a reset of internal state machines
* upon error conditions.
*/
- if (data->error != MMC_ERR_NONE) {
+ if (data->error) {
sdhci_reset(host, SDHCI_RESET_CMD);
sdhci_reset(host, SDHCI_RESET_DATA);
}
printk(KERN_ERR "%s: Controller never released "
"inhibit bit(s).\n", mmc_hostname(host->mmc));
sdhci_dumpregs(host);
- cmd->error = MMC_ERR_FAILED;
+ cmd->error = -EIO;
tasklet_schedule(&host->finish_tasklet);
return;
}
if ((cmd->flags & MMC_RSP_136) && (cmd->flags & MMC_RSP_BUSY)) {
printk(KERN_ERR "%s: Unsupported response type!\n",
mmc_hostname(host->mmc));
- cmd->error = MMC_ERR_INVALID;
+ cmd->error = -EINVAL;
tasklet_schedule(&host->finish_tasklet);
return;
}
}
}
- host->cmd->error = MMC_ERR_NONE;
+ host->cmd->error = 0;
if (host->data && host->data_early)
sdhci_finish_data(host);
host->mrq = mrq;
if (!(readl(host->ioaddr + SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) {
- host->mrq->cmd->error = MMC_ERR_TIMEOUT;
+ host->mrq->cmd->error = -ENOMEDIUM;
tasklet_schedule(&host->finish_tasklet);
} else
sdhci_send_command(host, mrq->cmd);
sdhci_reset(host, SDHCI_RESET_CMD);
sdhci_reset(host, SDHCI_RESET_DATA);
- host->mrq->cmd->error = MMC_ERR_FAILED;
+ host->mrq->cmd->error = -ENOMEDIUM;
tasklet_schedule(&host->finish_tasklet);
}
}
* The controller needs a reset of internal state machines
* upon error conditions.
*/
- if ((mrq->cmd->error != MMC_ERR_NONE) ||
- (mrq->data && ((mrq->data->error != MMC_ERR_NONE) ||
- (mrq->data->stop && (mrq->data->stop->error != MMC_ERR_NONE))))) {
+ if (mrq->cmd->error ||
+ (mrq->data && (mrq->data->error ||
+ (mrq->data->stop && mrq->data->stop->error)))) {
/* Some controllers need this kick or reset won't work here */
if (host->chip->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET) {
sdhci_dumpregs(host);
if (host->data) {
- host->data->error = MMC_ERR_TIMEOUT;
+ host->data->error = -ETIMEDOUT;
sdhci_finish_data(host);
} else {
if (host->cmd)
- host->cmd->error = MMC_ERR_TIMEOUT;
+ host->cmd->error = -ETIMEDOUT;
else
- host->mrq->cmd->error = MMC_ERR_TIMEOUT;
+ host->mrq->cmd->error = -ETIMEDOUT;
tasklet_schedule(&host->finish_tasklet);
}
}
if (intmask & SDHCI_INT_TIMEOUT)
- host->cmd->error = MMC_ERR_TIMEOUT;
- else if (intmask & SDHCI_INT_CRC)
- host->cmd->error = MMC_ERR_BADCRC;
- else if (intmask & (SDHCI_INT_END_BIT | SDHCI_INT_INDEX))
- host->cmd->error = MMC_ERR_FAILED;
+ host->cmd->error = -ETIMEDOUT;
+ else if (intmask & (SDHCI_INT_CRC | SDHCI_INT_END_BIT |
+ SDHCI_INT_INDEX))
+ host->cmd->error = -EILSEQ;
- if (host->cmd->error != MMC_ERR_NONE)
+ if (host->cmd->error)
tasklet_schedule(&host->finish_tasklet);
else if (intmask & SDHCI_INT_RESPONSE)
sdhci_finish_command(host);
}
if (intmask & SDHCI_INT_DATA_TIMEOUT)
- host->data->error = MMC_ERR_TIMEOUT;
- else if (intmask & SDHCI_INT_DATA_CRC)
- host->data->error = MMC_ERR_BADCRC;
- else if (intmask & SDHCI_INT_DATA_END_BIT)
- host->data->error = MMC_ERR_FAILED;
+ host->data->error = -ETIMEDOUT;
+ else if (intmask & (SDHCI_INT_DATA_CRC | SDHCI_INT_DATA_END_BIT))
+ host->data->error = -EILSEQ;
- if (host->data->error != MMC_ERR_NONE)
+ if (host->data->error)
sdhci_finish_data(host);
else {
if (intmask & (SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL))
struct tifm_dev *sock = host->dev;
struct mmc_command *cmd = host->req->cmd;
- if (cmd->error != MMC_ERR_NONE)
+ if (cmd->error)
goto finish_request;
if (!(host->cmd_flags & CMD_READY))
return;
if (cmd->data) {
- if (cmd->data->error != MMC_ERR_NONE) {
+ if (cmd->data->error) {
if ((host->cmd_flags & SCMD_ACTIVE)
&& !(host->cmd_flags & SCMD_READY))
return;
{
struct tifm_sd *host;
unsigned int host_status = 0;
- int cmd_error = MMC_ERR_NONE;
+ int cmd_error = 0;
struct mmc_command *cmd = NULL;
unsigned long flags;
writel(host_status & TIFM_MMCSD_ERRMASK,
sock->addr + SOCK_MMCSD_STATUS);
if (host_status & TIFM_MMCSD_CTO)
- cmd_error = MMC_ERR_TIMEOUT;
+ cmd_error = -ETIMEDOUT;
else if (host_status & TIFM_MMCSD_CCRC)
- cmd_error = MMC_ERR_BADCRC;
+ cmd_error = -EILSEQ;
if (cmd->data) {
if (host_status & TIFM_MMCSD_DTO)
- cmd->data->error = MMC_ERR_TIMEOUT;
+ cmd->data->error = -ETIMEDOUT;
else if (host_status & TIFM_MMCSD_DCRC)
- cmd->data->error = MMC_ERR_BADCRC;
+ cmd->data->error = -EILSEQ;
}
writel(TIFM_FIFO_INT_SETALL,
return;
err_out:
- mrq->cmd->error = MMC_ERR_TIMEOUT;
+ mrq->cmd->error = -ETIMEDOUT;
mmc_request_done(mmc, mrq);
}
writel(TIFM_FIFO_INT_SETALL,
sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR);
writel(0, sock->addr + SOCK_DMA_FIFO_INT_ENABLE_SET);
- host->req->cmd->error = MMC_ERR_TIMEOUT;
+ host->req->cmd->error = -ENOMEDIUM;
if (host->req->stop)
- host->req->stop->error = MMC_ERR_TIMEOUT;
+ host->req->stop->error = -ENOMEDIUM;
tasklet_schedule(&host->finish_tasklet);
}
spin_unlock_irqrestore(&sock->lock, flags);
* Correct response type?
*/
if (wbsd_read_index(host, WBSD_IDX_RSPLEN) != WBSD_RSP_SHORT) {
- cmd->error = MMC_ERR_INVALID;
+ cmd->error = -EILSEQ;
return;
}
* Correct response type?
*/
if (wbsd_read_index(host, WBSD_IDX_RSPLEN) != WBSD_RSP_LONG) {
- cmd->error = MMC_ERR_INVALID;
+ cmd->error = -EILSEQ;
return;
}
for (i = 3; i >= 0; i--)
outb((cmd->arg >> (i * 8)) & 0xff, host->base + WBSD_CMDR);
- cmd->error = MMC_ERR_NONE;
+ cmd->error = 0;
/*
* Wait for the request to complete.
/* Card removed? */
if (isr & WBSD_INT_CARD)
- cmd->error = MMC_ERR_TIMEOUT;
+ cmd->error = -ENOMEDIUM;
/* Timeout? */
else if (isr & WBSD_INT_TIMEOUT)
- cmd->error = MMC_ERR_TIMEOUT;
+ cmd->error = -ETIMEDOUT;
/* CRC? */
else if ((cmd->flags & MMC_RSP_CRC) && (isr & WBSD_INT_CRC))
- cmd->error = MMC_ERR_BADCRC;
+ cmd->error = -EILSEQ;
/* All ok */
else {
if (cmd->flags & MMC_RSP_136)
((blksize >> 4) & 0xF0) | WBSD_DATA_WIDTH);
wbsd_write_index(host, WBSD_IDX_PBSLSB, blksize & 0xFF);
} else {
- data->error = MMC_ERR_INVALID;
+ data->error = -EINVAL;
return;
}
*/
BUG_ON(size > 0x10000);
if (size > 0x10000) {
- data->error = MMC_ERR_INVALID;
+ data->error = -EINVAL;
return;
}
}
}
- data->error = MMC_ERR_NONE;
+ data->error = 0;
}
static void wbsd_finish_data(struct wbsd_host *host, struct mmc_data *data)
"%d bytes left.\n",
mmc_hostname(host->mmc), count);
- if (data->error == MMC_ERR_NONE)
- data->error = MMC_ERR_FAILED;
+ if (!data->error)
+ data->error = -EIO;
} else {
/*
* Transfer data from DMA buffer to
wbsd_dma_to_sg(host, data);
}
- if (data->error != MMC_ERR_NONE) {
+ if (data->error) {
if (data->bytes_xfered)
data->bytes_xfered -= data->blksz;
}
host->mrq = mrq;
/*
- * If there is no card in the slot then
- * timeout immediatly.
+ * Check that there is actually a card in the slot.
*/
if (!(host->flags & WBSD_FCARD_PRESENT)) {
- cmd->error = MMC_ERR_TIMEOUT;
+ cmd->error = -ENOMEDIUM;
goto done;
}
"supported by this controller.\n",
mmc_hostname(host->mmc), cmd->opcode);
#endif
- cmd->error = MMC_ERR_INVALID;
+ cmd->error = -EINVAL;
goto done;
};
if (cmd->data) {
wbsd_prepare_data(host, cmd->data);
- if (cmd->data->error != MMC_ERR_NONE)
+ if (cmd->data->error)
goto done;
}
* will be finished after the data has
* transfered.
*/
- if (cmd->data && (cmd->error == MMC_ERR_NONE)) {
+ if (cmd->data && !cmd->error) {
/*
* Dirty fix for hardware bug.
*/
mmc_hostname(host->mmc));
wbsd_reset(host);
- host->mrq->cmd->error = MMC_ERR_FAILED;
+ host->mrq->cmd->error = -ENOMEDIUM;
tasklet_schedule(&host->finish_tasklet);
}
DBGF("CRC error\n");
- data->error = MMC_ERR_BADCRC;
+ data->error = -EILSEQ;
tasklet_schedule(&host->finish_tasklet);
DBGF("Timeout\n");
- data->error = MMC_ERR_TIMEOUT;
+ data->error = -ETIMEDOUT;
tasklet_schedule(&host->finish_tasklet);
unsigned int retries; /* max number of retries */
unsigned int error; /* command error */
-#define MMC_ERR_NONE 0
-#define MMC_ERR_TIMEOUT 1
-#define MMC_ERR_BADCRC 2
-#define MMC_ERR_FIFO 3
-#define MMC_ERR_FAILED 4
-#define MMC_ERR_INVALID 5
+/*
+ * Standard errno values are used for errors, but some have specific
+ * meaning in the MMC layer:
+ *
+ * ETIMEDOUT Card took too long to respond
+ * EILSEQ Basic format problem with the received or sent data
+ * (e.g. CRC check failed, incorrect opcode in response
+ * or bad end bit)
+ * EINVAL Request cannot be performed because of restrictions
+ * in hardware and/or the driver
+ * ENOMEDIUM Host can determine that the slot is empty and is
+ * actively failing requests
+ */
struct mmc_data *data; /* data segment associated with cmd */
struct mmc_request *mrq; /* associated request */
projects / linux-2.6-omap-h63xx.git / commitdiff