sdio: core support for SDIO function interrupt
Signed-off-by: Nicolas Pitre <npitre@mvista.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 8e2642e..00dc180 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -123,6 +123,10 @@
unsigned int bus_refs; /* reference counter */
unsigned int bus_dead:1; /* bus has been released */
+ unsigned int sdio_irqs;
+ struct task_struct *sdio_irq_thread;
+ atomic_t sdio_irq_thread_abort;
+
unsigned long private[0] ____cacheline_aligned;
};
diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h
index 8106d39..a8d268c 100644
--- a/include/linux/mmc/sdio_func.h
+++ b/include/linux/mmc/sdio_func.h
@@ -16,6 +16,9 @@
#include <linux/mod_devicetable.h>
struct mmc_card;
+struct sdio_func;
+
+typedef void (sdio_irq_handler_t)(struct sdio_func *);
/*
* SDIO function CIS tuple (unknown to the core)
@@ -33,6 +36,7 @@
struct sdio_func {
struct mmc_card *card; /* the card this device belongs to */
struct device dev; /* the device */
+ sdio_irq_handler_t *irq_handler; /* IRQ callback */
unsigned int num; /* function number */
unsigned char class; /* standard interface class */
@@ -105,6 +109,9 @@
extern int sdio_enable_func(struct sdio_func *func);
extern int sdio_disable_func(struct sdio_func *func);
+extern int sdio_claim_irq(struct sdio_func *func, sdio_irq_handler_t *handler);
+extern int sdio_release_irq(struct sdio_func *func);
+
extern unsigned char sdio_readb(struct sdio_func *func,
unsigned int addr, int *err_ret);