int sdxc_send_manual_stop(struct awsmc_host* smc_host, struct mmc_request* request)
{
struct mmc_data* data = request->data;
u32 cmd_val = SDXC_Start | SDXC_RspExp | SDXC_CheckRspCRC | MMC_STOP_TRANSMISSION;
u32 iflags = 0;
int ret = 0;
if (!data || !data->stop)
{
awsmc_dbg_err("no stop cmd request\n");
return -1;
}
sdxc_int_disable(smc_host);
sdc_write(SDXC_REG_CARG, 0);
sdc_write(SDXC_REG_CMDR, cmd_val);
do {
iflags = sdc_read(SDXC_REG_RINTR);
} while(!(iflags & (SDXC_CmdDone | SDXC_IntErrBit)));
if (iflags & SDXC_IntErrBit)
{
awsmc_dbg_err("sdc %d send stop command failed\n", smc_host->pdev->id);
data->stop->error = ETIMEDOUT;
ret = -1;
}
sdc_write(SDXC_REG_RINTR, iflags);
data->stop->resp[0] = sdc_read(SDXC_REG_RESP0);
sdxc_int_enable(smc_host);
return ret;
}
static void sunximmc_tasklet(unsigned long data)
{
struct sunxi_mmc_host *smc_host = (struct sunxi_mmc_host *) data;
sdxc_int_disable(smc_host);
if (smc_host->pio_active == XFER_WRITE)
sdxc_do_pio_write(smc_host);
if (smc_host->pio_active == XFER_READ)
sdxc_do_pio_read(smc_host);
if (smc_host->wait == SDC_WAIT_FINALIZE)
{
sdxc_int_enable(smc_host);
sunximmc_finalize_request(smc_host);
}
else
sdxc_int_enable(smc_host);
}
/*********************************************************************
* Method :
* Description:
* Parameters :
*
* Returns :
* Note :
*********************************************************************/
void sdxc_check_status(struct awsmc_host* smc_host)
{
u32 raw_int;
u32 msk_int;
u32 idma_inte;
u32 idma_int;
sdxc_int_disable(smc_host);
idma_int = sdc_read(SDXC_REG_IDST);
idma_inte = sdc_read(SDXC_REG_IDIE);
raw_int = sdc_read(SDXC_REG_RINTR);
msk_int = sdc_read(SDXC_REG_MISTA);
smc_host->int_sum |= raw_int;
awsmc_info("smc %d int, ri %08x(%08x) mi %08x ie %08x idi %08x\n", smc_host->pdev->id, raw_int, smc_host->int_sum, msk_int, idma_inte, idma_int);
if (msk_int & SDXC_SDIOInt)
{
smc_host->sdio_int = 1;
sdc_write(SDXC_REG_RINTR, SDXC_SDIOInt);
}
if (smc_host->cd_gpio == CARD_DETECT_BY_DATA3)
{
if (msk_int&SDXC_CardInsert)
{
awsmc_dbg("card detect insert\n");
smc_host->present = 1;
smc_host->change = 1;
sdc_write(SDXC_REG_RINTR, SDXC_CardInsert);
goto irq_out;
}
if (msk_int&SDXC_CardRemove)
{
awsmc_dbg("card detect remove\n");
smc_host->present = 0;
smc_host->change = 1;
sdc_write(SDXC_REG_RINTR, SDXC_CardRemove);
goto irq_out;
}
}
if (smc_host->wait == SDC_WAIT_NONE && !smc_host->sdio_int)
{
awsmc_dbg_err("smc %x, nothing to complete, raw_int = %08x, mask_int = %08x\n", smc_host->pdev->id, raw_int, msk_int);
sdxc_clear_imask(smc_host);
goto irq_normal_out;
}
if ((raw_int & SDXC_IntErrBit) || (idma_int & SDXC_IDMA_ERR))
{
smc_host->error = raw_int & SDXC_IntErrBit;
smc_host->wait = SDC_WAIT_FINALIZE;
goto irq_normal_out;
}
if (smc_host->wait == SDC_WAIT_AUTOCMD_DONE && (msk_int&SDXC_AutoCMDDone))
{
smc_host->wait = SDC_WAIT_FINALIZE;
}
else if (smc_host->wait == SDC_WAIT_DATA_OVER && (msk_int&SDXC_DataOver))
{
smc_host->wait = SDC_WAIT_FINALIZE;
}
else if (smc_host->wait == SDC_WAIT_CMD_DONE && (msk_int&SDXC_CmdDone) && !(smc_host->int_sum&SDXC_IntErrBit))
{
smc_host->wait = SDC_WAIT_FINALIZE;
}
// if (idma_int & (SDXC_IDMACTransmitInt | SDXC_IDMACReceiveInt))
// {
// }
irq_normal_out:
sdc_write(SDXC_REG_RINTR, (~SDXC_SDIOInt) & msk_int);
sdc_write(SDXC_REG_IDST, idma_int);
irq_out:
sdxc_int_enable(smc_host);
}
