static void omap_hsmmc_status_notify_cb(int card_present, void *dev_id)
{
struct mmc_omap_host *host = dev_id;
struct omap_mmc_slot_data *slot = &mmc_slot(host);
printk(KERN_DEBUG "%s: card_present %d\n", mmc_hostname(host->mmc),
card_present);
host->carddetect = slot->card_detect(slot->card_detect_irq);
sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch");
if (host->carddetect) {
mmc_detect_change(host->mmc, (HZ * 200) / 1000);
} else {
mmc_omap_reset_controller_fsm(host, SRD);
mmc_detect_change(host->mmc, (HZ * 50) / 1000);
}
}
/*
* Work Item to notify the core about card insertion/removal
*/
static void mmc_omap_detect(struct work_struct *work)
{
struct mmc_omap_host *host = container_of(work, struct mmc_omap_host,
mmc_carddetect_work);
struct omap_mmc_slot_data *slot = &mmc_slot(host);
omap_hsmmc_enable_clks(host);
host->carddetect = slot->card_detect(slot->card_detect_irq);
sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch");
if (host->carddetect) {
host->mmc->removed = 0;
mmc_detect_change(host->mmc, (HZ * 200) / 1000);
} else {
mmc_omap_reset_controller_fsm(host, SRD);
host->mmc->removed = 1;
mmc_detect_change(host->mmc, (HZ * 50) / 1000);
}
}
/*
* MMC controller IRQ handler
*/
static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
{
struct mmc_omap_host *host = dev_id;
struct mmc_data *data;
int end_cmd = 0, end_trans = 0, status;
omap_hsmmc_enable_clks(host);
if (host->cmd == NULL && host->data == NULL) {
OMAP_HSMMC_WRITE(host->base, STAT,
OMAP_HSMMC_READ(host->base, STAT));
return IRQ_HANDLED;
}
data = host->data;
status = OMAP_HSMMC_READ(host->base, STAT);
dev_dbg(mmc_dev(host->mmc), "IRQ Status is %x\n", status);
if (status & ERR) {
#ifdef CONFIG_MMC_DEBUG
mmc_omap_report_irq(host, status);
#endif
if ((status & CMD_TIMEOUT) ||
(status & CMD_CRC) ||
(status & CMD_CEB) ||
(status & CMD_CIE)) {
if (host->cmd) {
if (status & CMD_TIMEOUT) {
mmc_omap_reset_controller_fsm(host, SRC);
host->cmd->error = -ETIMEDOUT;
} else {
host->cmd->error = -EILSEQ;
}
end_cmd = 1;
}
if (host->data) {
mmc_dma_cleanup(host, -ETIMEDOUT);
mmc_omap_reset_controller_fsm(host, SRD);
}
}
if ((status & DATA_TIMEOUT) ||
(status & DATA_CRC) ||
(status & DATA_DEB)) {
if (host->data) {
if (status & DATA_TIMEOUT)
mmc_dma_cleanup(host, -ETIMEDOUT);
else
mmc_dma_cleanup(host, -EILSEQ);
mmc_omap_reset_controller_fsm(host, SRD);
end_trans = 1;
}
}
if (status & CARD_ERR) {
dev_dbg(mmc_dev(host->mmc),
"Ignoring card err CMD%d\n", host->cmd->opcode);
if (host->cmd)
end_cmd = 1;
if (host->data)
end_trans = 1;
}
}
OMAP_HSMMC_WRITE(host->base, STAT, status);
if (end_cmd || (status & CC))
mmc_omap_cmd_done(host, host->cmd);
if (end_trans || (status & TC))
mmc_omap_xfer_done(host, data);
/* Perform one dummy read to ensure the previous write actually went through */
status = OMAP_HSMMC_READ(host->base, STAT);
return IRQ_HANDLED;
}
