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authorMauro Carvalho Chehab <mchehab@redhat.com>2010-12-30 12:02:51 +0100
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-12-30 15:17:06 +0100
commit1c0eb0ffb0d541bf05a4b422a629fa5986799313 (patch)
tree82ba3769d075e2e08c61949c74832f90e54c021e /drivers/media
parent[media] bttv-input: Add a note about PV951 RC (diff)
downloadlinux-1c0eb0ffb0d541bf05a4b422a629fa5986799313.tar.xz
linux-1c0eb0ffb0d541bf05a4b422a629fa5986799313.zip
[media] cx88: Add RC logic for Leadtek PVR 2000
Currently, lirc-i2c has a decoding logic for Leadtek Remote Control. Move it to cx88, as we intend to remove lirc-i2c. For now, initialize LIRC remote keytable with RC_MAP_EMPTY, as we don't know its keymap yet. It would be nice to later check if is there any file on LIRC userspace with that keytable. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/video/cx88/cx88-input.c49
1 files changed, 48 insertions, 1 deletions
diff --git a/drivers/media/video/cx88/cx88-input.c b/drivers/media/video/cx88/cx88-input.c
index 4a3bf5476c71..06f7d1d00944 100644
--- a/drivers/media/video/cx88/cx88-input.c
+++ b/drivers/media/video/cx88/cx88-input.c
@@ -68,6 +68,9 @@ MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
#define ir_dprintk(fmt, arg...) if (ir_debug) \
printk(KERN_DEBUG "%s IR: " fmt , ir->core->name , ##arg)
+#define dprintk(fmt, arg...) if (ir_debug) \
+ printk(KERN_DEBUG "cx88 IR: " fmt , ##arg)
+
/* ---------------------------------------------------------------------- */
static void cx88_ir_handle_key(struct cx88_IR *ir)
@@ -527,13 +530,47 @@ void cx88_ir_irq(struct cx88_core *core)
ir_raw_event_handle(ir->dev);
}
+static int get_key_pvr2000(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
+{
+ int flags, code;
+
+ /* poll IR chip */
+ flags = i2c_smbus_read_byte_data(ir->c, 0x10);
+ if (flags < 0) {
+ dprintk("read error\n");
+ return 0;
+ }
+ /* key pressed ? */
+ if (0 == (flags & 0x80))
+ return 0;
+
+ /* read actual key code */
+ code = i2c_smbus_read_byte_data(ir->c, 0x00);
+ if (code < 0) {
+ dprintk("read error\n");
+ return 0;
+ }
+
+ dprintk("IR Key/Flags: (0x%02x/0x%02x)\n",
+ code & 0xff, flags & 0xff);
+
+ *ir_key = code & 0xff;
+ *ir_raw = code;
+ return 1;
+}
+
void cx88_i2c_init_ir(struct cx88_core *core)
{
struct i2c_board_info info;
- const unsigned short addr_list[] = {
+ const unsigned short default_addr_list[] = {
0x18, 0x6b, 0x71,
I2C_CLIENT_END
};
+ const unsigned short pvr2000_addr_list[] = {
+ 0x18, 0x1a,
+ I2C_CLIENT_END
+ };
+ const unsigned short *addr_list = default_addr_list;
const unsigned short *addrp;
/* Instantiate the IR receiver device, if present */
if (0 != core->i2c_rc)
@@ -542,6 +579,16 @@ void cx88_i2c_init_ir(struct cx88_core *core)
memset(&info, 0, sizeof(struct i2c_board_info));
strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
+ switch (core->boardnr) {
+ case CX88_BOARD_LEADTEK_PVR2000:
+ addr_list = pvr2000_addr_list;
+ core->init_data.name = "cx88 Leadtek PVR 2000 remote";
+ core->init_data.type = RC_TYPE_UNKNOWN;
+ core->init_data.get_key = get_key_pvr2000;
+ core->init_data.ir_codes = RC_MAP_EMPTY;
+ break;
+ }
+
/*
* We can't call i2c_new_probed_device() because it uses
* quick writes for probing and at least some RC receiver