V4L/DVB (9607): em28xx: Properly implement poll support for IR's
The first em28xx were based on i2c IR's. However, some newer designs
are coming with a polling-based IR. Those are done by reading a register
set at em28xx.
This patch adds core polling support for those devices. Later patches will
add support for some device-specific IR's.
This patch adds the same basic IR polling code used by bttv, cx88 and saa7134, and
shares the common getkey masks defined at ir-common.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h
index 1350a9c..73fd9e9 100644
--- a/drivers/media/video/em28xx/em28xx.h
+++ b/drivers/media/video/em28xx/em28xx.h
@@ -384,6 +384,8 @@
unsigned int has_snapshot_button:1;
unsigned int valid:1; /* report for validated boards */
+ struct em28xx_IR *ir;
+
/* Some older em28xx chips needs a waiting time after writing */
unsigned int wait_after_write;
@@ -544,7 +546,6 @@
int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
/* Provided by em28xx-input.c */
-/* TODO: Check if the standard get_key handlers on ir-common can be used */
int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key,
@@ -552,6 +553,9 @@
void em28xx_register_snapshot_button(struct em28xx *dev);
void em28xx_deregister_snapshot_button(struct em28xx *dev);
+int em28xx_ir_init(struct em28xx *dev);
+int em28xx_ir_fini(struct em28xx *dev);
+
/* printk macros */
#define em28xx_err(fmt, arg...) do {\