Add sysfs cover_switch with the status of cover.
Signed-off-by: Francisco Alecrim <francisco.alecrim@xxxxxxxxxxx>
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@xxxxxxxxx>
---
drivers/mmc/host/omap_hsmmc.c | 30 ++++++++++++++++++++++++++++++
1 files changed, 30 insertions(+), 0 deletions(-)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 17a3d8c..f9ba09d 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -175,6 +175,27 @@ static void send_init_stream(struct mmc_omap_host *host)
enable_irq(host->irq);
}
+static inline
+int mmc_omap_cover_is_closed(struct mmc_omap_host *host)
+{
+ if (host->pdata->slots[host->slot_id].get_cover_state)
+ return host->pdata->slots[host->slot_id].get_cover_state(host->dev, host->slot_id);
+ return 1;
+}
+
+static ssize_t
+mmc_omap_show_cover_switch(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct mmc_host *mmc = container_of(dev, struct mmc_host, class_dev);
+ struct mmc_omap_host *host = mmc_priv(mmc);
+
+ return sprintf(buf, "%s\n", mmc_omap_cover_is_closed(host) ? "closed" :
+ "open");
+}
+
+static DEVICE_ATTR(cover_switch, S_IRUGO, mmc_omap_show_cover_switch, NULL);
+
static ssize_t
mmc_omap_show_slot_name(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -476,6 +497,7 @@ static void mmc_omap_detect(struct work_struct *work)
struct mmc_omap_host *host = container_of(work, struct mmc_omap_host,
mmc_carddetect_work);
+ sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch");
if (host->carddetect) {
if (!(OMAP_HSMMC_READ(host->base, HCTL) & SDVSDET)) {
/*
@@ -926,9 +948,17 @@ static int __init omap_mmc_probe(struct platform_device *pdev)
if (ret < 0)
goto err_slot_name;
}
+ if (mmc_slot(host).card_detect_irq && mmc_slot(host).card_detect &&
+ host->pdata->slots[host->slot_id].get_cover_state) {
+ ret = device_create_file(&mmc->class_dev, &dev_attr_cover_switch);
+ if (ret < 0)
+ goto err_cover_switch;
+ }
return 0;
+err_cover_switch:
+ device_remove_file(&mmc->class_dev, &dev_attr_cover_switch);
err_slot_name:
mmc_remove_host(mmc);
err_irq_cd_init:
--
1.5.6.3
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