static void ak98_mci_send_request(struct mmc_host *mmc)
{
struct ak98_mci_host *host = mmc_priv(mmc);
struct mmc_request *mrq = host->mrq;
unsigned long flags;
#ifdef CONFIG_CPU_FREQ
/*
* need not to acquire the freq_lock in interrupt.
*/
if (!in_interrupt())
{
down(&host->freq_lock);
}
#endif
#ifdef CONFIG_MTD_NAND_AK98
/*
* need not to acquire the nand_lock in interrupt.
*/
if (!in_interrupt())
{
down(&nand_lock);
}
#endif
ak98_group_pin_config();
/*
*when transmit data, alloc the L2 buffer Id.
*/
if(mrq->data)
{
l2_mci_bufid = ak98_l2_alloc(ADDR_MMC_SD);
if (BUF_NULL == l2_mci_bufid)
{
printk("L2 buffer malloc fail!\n");
BUG();
}
ak98_l2_clr_status(l2_mci_bufid);
}
spin_lock_irqsave(&host->lock, flags);
if (mrq->data && (mrq->data->flags & MMC_DATA_READ))
ak98_mci_start_data(host, mrq->data);
ak98_mci_start_command(host, mrq->cmd);
spin_unlock_irqrestore(&host->lock, flags);
}
static void ak98_sdio_data_irq(struct ak98_mci_host *host, struct mmc_data *data,
unsigned int status)
{
if (status & MCI_DATABLOCKEND) {
PK("BLOCKEND\n");
#ifdef AKMCI_L2FIFO_PIO
if (data->flags & MMC_DATA_WRITE)
{
ak98_l2_clr_status(l2_sdio_bufid);
}
if (host->size > 0)
mci_xfer(host);
#endif
}
if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT)) {
PK1("DATA ERROR: 0x%08x\n", status);
if (status & MCI_DATACRCFAIL )
data->error = -EILSEQ;
else if (status & MCI_DATATIMEOUT)
data->error = -ETIMEDOUT;
status |= MCI_DATAEND;
/*
* We hit an error condition. Ensure that any data
* partially written to a page is properly coherent.
*/
if (host->sg_len && data->flags & MMC_DATA_READ)
flush_dcache_page(sg_page(host->sg_ptr));
}
if (status & MCI_DATAEND) {
ak98_sdio_stop_data(host);
//dump_data(data);
if (!data->stop) {
ak98_sdio_request_end(host, data->mrq);
} else {
ak98_sdio_start_command(host, data->stop);
}
}
}
static void ak98_sdio_send_request(struct mmc_host *mmc)
{
struct ak98_mci_host *host = mmc_priv(mmc);
struct mmc_request *mrq = host->mrq;
unsigned long flags;
#ifdef CONFIG_CPU_FREQ
/*
* need not to acquire the freq_lock in interrupt.
*/
if (!in_interrupt())
{
down(&host->freq_lock);
}
#endif
if(mrq->data || mrq->cmd->data)
{
l2_sdio_bufid = ak98_l2_alloc(ADDR_SDIO);
if (BUF_NULL == l2_sdio_bufid)
{
printk("L2 buffer malloc fail!\n");
BUG();
}
ak98_l2_clr_status(l2_sdio_bufid);
}
spin_lock_irqsave(&host->lock, flags);
if (mrq->data && (mrq->data->flags & MMC_DATA_READ))
ak98_sdio_start_data(host, mrq->data);
ak98_sdio_start_command(host, mrq->cmd);
spin_unlock_irqrestore(&host->lock, flags);
}