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mod sdmmc

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This commit is contained in:
柯飞雄
2010-05-29 06:12:37 +00:00
committed by 黄涛
parent 5af7564f2e
commit a8501e1187
1 changed files with 28 additions and 42 deletions
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70
drivers/mmc/host/rk2818-sdmmc.c
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@@ -1106,57 +1106,43 @@ static void rk2818_sdmmc_detect_change(unsigned long host_data)
mrq = host->mrq;
if (mrq) {
if (mrq == host->mrq) {
writel((SDMMC_CTRL_RESET | SDMMC_CTRL_FIFO_RESET | SDMMC_CTRL_DMA_RESET|
SDMMC_CTRL_INT_ENABLE), host->regs + SDMMC_CTRL);
/* wait till resets clear */
while (readl(host->regs + SDMMC_CTRL) &
(SDMMC_CTRL_RESET | SDMMC_CTRL_FIFO_RESET | SDMMC_CTRL_DMA_RESET));
writel((SDMMC_CTRL_RESET | SDMMC_CTRL_FIFO_RESET | SDMMC_CTRL_DMA_RESET|
SDMMC_CTRL_INT_ENABLE), host->regs + SDMMC_CTRL);
/* wait till resets clear */
while (readl(host->regs + SDMMC_CTRL) &
(SDMMC_CTRL_RESET | SDMMC_CTRL_FIFO_RESET | SDMMC_CTRL_DMA_RESET));
host->data = NULL;
host->cmd = NULL;
host->data = NULL;
host->cmd = NULL;
switch (host->state) {
case STATE_IDLE:
break;
case STATE_SENDING_CMD:
mrq->cmd->error = -ENOMEDIUM;
if (!mrq->data)
break;
/* fall through */
case STATE_SENDING_DATA:
mrq->data->error = -ENOMEDIUM;
rk2818_sdmmc_stop_dma(host);
break;
case STATE_DATA_BUSY:
case STATE_DATA_ERROR:
if (mrq->data->error == -EINPROGRESS)
mrq->data->error = -ENOMEDIUM;
if (!mrq->stop)
break;
case STATE_SENDING_STOP:
mrq->stop->error = -ENOMEDIUM;
break;
}
rk2818_sdmmc_request_end(host, mrq);
} else {
list_del(&host->queue_node);
switch (host->state) {
case STATE_IDLE:
break;
case STATE_SENDING_CMD:
mrq->cmd->error = -ENOMEDIUM;
if (mrq->data)
if (!mrq->data)
break;
/* fall through */
case STATE_SENDING_DATA:
mrq->data->error = -ENOMEDIUM;
rk2818_sdmmc_stop_dma(host);
break;
case STATE_DATA_BUSY:
case STATE_DATA_ERROR:
if (mrq->data->error == -EINPROGRESS)
mrq->data->error = -ENOMEDIUM;
if (mrq->stop)
mrq->stop->error = -ENOMEDIUM;
spin_unlock(&host->lock);
mmc_request_done(host->mmc, mrq);
spin_lock(&host->lock);
if (!mrq->stop)
break;
case STATE_SENDING_STOP:
mrq->stop->error = -ENOMEDIUM;
break;
}
rk2818_sdmmc_request_end(host, mrq);
}
spin_unlock(&host->lock);
mmc_detect_change(host->mmc, 0);
mmc_detect_change(host->mmc, msecs_to_jiffies(200));
}
}