diff options
Diffstat (limited to 'drivers/mmc/host/au1xmmc.c')
-rw-r--r-- | drivers/mmc/host/au1xmmc.c | 58 |
1 files changed, 30 insertions, 28 deletions
diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c index 34c99d4..92c4d0d 100644 --- a/drivers/mmc/host/au1xmmc.c +++ b/drivers/mmc/host/au1xmmc.c @@ -186,7 +186,7 @@ static void au1xmmc_tasklet_finish(unsigned long param) } static int au1xmmc_send_command(struct au1xmmc_host *host, int wait, - struct mmc_command *cmd, unsigned int flags) + struct mmc_command *cmd, struct mmc_data *data) { u32 mmccmd = (cmd->opcode << SD_CMD_CI_SHIFT); @@ -208,19 +208,21 @@ static int au1xmmc_send_command(struct au1xmmc_host *host, int wait, 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) { - if (flags & MMC_DATA_MULTI) - mmccmd |= SD_CMD_CT_4; - else - mmccmd |= SD_CMD_CT_2; - } else if (flags & MMC_DATA_WRITE) { - if (flags & MMC_DATA_MULTI) - mmccmd |= SD_CMD_CT_3; - else - mmccmd |= SD_CMD_CT_1; + if (data) { + if (flags & MMC_DATA_READ) { + if (data->blocks > 1) + mmccmd |= SD_CMD_CT_4; + else + mmccmd |= SD_CMD_CT_2; + } else if (flags & MMC_DATA_WRITE) { + if (data->blocks > 1) + mmccmd |= SD_CMD_CT_3; + else + mmccmd |= SD_CMD_CT_1; + } } au_writel(cmd->arg, HOST_CMDARG(host)); @@ -253,7 +255,7 @@ static int au1xmmc_send_command(struct au1xmmc_host *host, int wait, IRQ_ON(host, SD_CONFIG_CR); } - return MMC_ERR_NONE; + return 0; } static void au1xmmc_data_complete(struct au1xmmc_host *host, u32 status) @@ -278,7 +280,7 @@ 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 */ @@ -288,14 +290,14 @@ static void au1xmmc_data_complete(struct au1xmmc_host *host, u32 status) 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); @@ -475,7 +477,7 @@ static void au1xmmc_cmd_complete(struct au1xmmc_host *host, u32 status) return; cmd = mrq->cmd; - cmd->error = MMC_ERR_NONE; + cmd->error = 0; if (cmd->flags & MMC_RSP_PRESENT) { if (cmd->flags & MMC_RSP_136) { @@ -512,11 +514,11 @@ static void au1xmmc_cmd_complete(struct au1xmmc_host *host, u32 status) /* 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); @@ -589,7 +591,7 @@ au1xmmc_prepare_data(struct au1xmmc_host *host, struct mmc_data *data) 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)); @@ -640,11 +642,11 @@ au1xmmc_prepare_data(struct au1xmmc_host *host, struct mmc_data *data) //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 @@ -656,7 +658,7 @@ static void au1xmmc_request(struct mmc_host* mmc, struct mmc_request* mrq) 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); @@ -672,10 +674,10 @@ static void au1xmmc_request(struct mmc_host* mmc, struct mmc_request* mrq) ret = au1xmmc_prepare_data(host, mrq->data); } - if (ret == MMC_ERR_NONE) - ret = au1xmmc_send_command(host, 0, mrq->cmd, flags); + if (!ret) + ret = au1xmmc_send_command(host, 0, mrq->cmd, mrq->data); - if (ret != MMC_ERR_NONE) { + if (ret) { mrq->cmd->error = ret; au1xmmc_finish_request(host); } @@ -764,10 +766,10 @@ static irqreturn_t au1xmmc_irq(int irq, void *dev_id) 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); |