From 8069695c9e7da7ab7cd8ee749e8d5aa9e6e0660b Mon Sep 17 00:00:00 2001 From: Ricardo Cerqueira Date: Sun, 13 Nov 2005 16:07:49 -0800 Subject: [PATCH] v4l: (935) Moved common IR stuff to ir-common.c - The pinnacle handler & remote are common to saa7134 PCI boards and em28xx USB boards, so the keymap was moved to ir-common and the keyhandler is back to ir-kbd-i2c - request_module("ir-kbd-i2c") is no longer necessary at saa7134-core since saa7134.ko now depends on ir-kbd-i2c.ko to get the keyhandler Signed-off-by: Ricardo Cerqueira Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/video/ir-kbd-i2c.c | 52 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) (limited to 'drivers/media/video/ir-kbd-i2c.c') diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c index 0085567a142..801c736e932 100644 --- a/drivers/media/video/ir-kbd-i2c.c +++ b/drivers/media/video/ir-kbd-i2c.c @@ -183,6 +183,58 @@ static int get_key_knc1(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) return 1; } +/* The new pinnacle PCTV remote (with the colored buttons) + * + * Ricardo Cerqueira + */ + +int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) +{ + unsigned char b[4]; + unsigned int start = 0,parity = 0,code = 0; + + /* poll IR chip */ + if (4 != i2c_master_recv(&ir->c,b,4)) { + dprintk(2,"read error\n"); + return -EIO; + } + + for (start = 0; start<4; start++) { + if (b[start] == 0x80) { + code=b[(start+3)%4]; + parity=b[(start+2)%4]; + } + } + + /* Empty Request */ + if (parity==0) + return 0; + + /* Repeating... */ + if (ir->old == parity) + return 0; + + + ir->old = parity; + + /* Reduce code value to fit inside IR_KEYTAB_SIZE + * + * this is the only value that results in 42 unique + * codes < 128 + */ + + code %= 0x88; + + *ir_raw = code; + *ir_key = code; + + dprintk(1,"Pinnacle PCTV key %02x\n", code); + + return 1; +} + +EXPORT_SYMBOL_GPL(get_key_pinnacle); + /* ----------------------------------------------------------------------- */ static void ir_key_poll(struct IR_i2c *ir) -- cgit v1.2.3