diff options
Diffstat (limited to 'drivers/media/video/ir-kbd-i2c.c')
| -rw-r--r-- | drivers/media/video/ir-kbd-i2c.c | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c index 7b65f5e537f8..a30254bed311 100644 --- a/drivers/media/video/ir-kbd-i2c.c +++ b/drivers/media/video/ir-kbd-i2c.c @@ -194,88 +194,6 @@ static int get_key_knc1(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) return 1; } -/* Common (grey or coloured) pinnacle PCTV remote handling - * - */ -static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw, - int parity_offset, int marker, int code_modulo) -{ - 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 < ARRAY_SIZE(b); start++) { - if (b[start] == marker) { - code=b[(start+parity_offset+1)%4]; - parity=b[(start+parity_offset)%4]; - } - } - - /* Empty Request */ - if (parity==0) - return 0; - - /* Repeating... */ - if (ir->old == parity) - return 0; - - ir->old = parity; - - /* drop special codes when a key is held down a long time for the grey controller - In this case, the second bit of the code is asserted */ - if (marker == 0xfe && (code & 0x40)) - return 0; - - code %= code_modulo; - - *ir_raw = code; - *ir_key = code; - - dprintk(1,"Pinnacle PCTV key %02x\n", code); - - return 1; -} - -/* The grey pinnacle PCTV remote - * - * There are one issue with this remote: - * - I2c packet does not change when the same key is pressed quickly. The workaround - * is to hold down each key for about half a second, so that another code is generated - * in the i2c packet, and the function can distinguish key presses. - * - * Sylvain Pasche <sylvain.pasche@gmail.com> - */ -int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) -{ - - return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff); -} - -EXPORT_SYMBOL_GPL(get_key_pinnacle_grey); - - -/* The new pinnacle PCTV remote (with the colored buttons) - * - * Ricardo Cerqueira <v4l@cerqueira.org> - */ -int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) -{ - /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE - * - * this is the only value that results in 42 unique - * codes < 128 - */ - - return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88); -} - -EXPORT_SYMBOL_GPL(get_key_pinnacle_color); - /* ----------------------------------------------------------------------- */ static void ir_key_poll(struct IR_i2c *ir) |