From 1c0eb0ffb0d541bf05a4b422a629fa5986799313 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 30 Dec 2010 08:02:51 -0300 Subject: [PATCH] [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 --- drivers/media/video/cx88/cx88-input.c | 49 ++++++++++++++++++++++++++- 1 file changed, 48 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/cx88/cx88-input.c b/drivers/media/video/cx88/cx88-input.c index 4a3bf5476c7..06f7d1d0094 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 -- 2.41.0