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[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>
This commit is contained in:
Mauro Carvalho Chehab 2010-12-30 08:02:51 -03:00
parent b22374544b
commit 1c0eb0ffb0
1 changed files with 48 additions and 1 deletions
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49
drivers/media/video/cx88/cx88-input.c
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@ -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