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V4L/DVB (4023): Subject: Pinnacle PCTV grey remote control support
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This adds support for the older (?) Pinnacle PCTV remotes (with all buttons
colored in grey). There's no autodetection for the type of remote, though;
saa7134 defaults to the colored one, to use the grey remote the 
"pinnacle_remote=1" option must be passed to the saa7134 module

Signed-off-by: Sylvain Pasche <sylvain.pasche@gmail.com>
Signed-off-by: Ricardo Cerqueira <v4l@cerqueira.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Sylvain Pasche authored and Mauro Carvalho Chehab committed Jun 25, 2006
1 parent e48a9c6 commit b93eedb
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Showing 6 changed files with 67 additions and 27 deletions.
8 changes: 4 additions & 4 deletions drivers/media/common/ir-keymaps.c
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Original file line number Diff line number Diff line change
Expand Up @@ -618,7 +618,7 @@ IR_KEYTAB_TYPE ir_codes_em_terratec[IR_KEYTAB_SIZE] = {

EXPORT_SYMBOL_GPL(ir_codes_em_terratec);

IR_KEYTAB_TYPE ir_codes_em_pinnacle_usb[IR_KEYTAB_SIZE] = {
IR_KEYTAB_TYPE ir_codes_pinnacle_grey[IR_KEYTAB_SIZE] = {
[ 0x3a ] = KEY_0,
[ 0x31 ] = KEY_1,
[ 0x32 ] = KEY_2,
Expand Down Expand Up @@ -670,7 +670,7 @@ IR_KEYTAB_TYPE ir_codes_em_pinnacle_usb[IR_KEYTAB_SIZE] = {
[ 0x27 ] = KEY_RECORD,
};

EXPORT_SYMBOL_GPL(ir_codes_em_pinnacle_usb);
EXPORT_SYMBOL_GPL(ir_codes_pinnacle_grey);

IR_KEYTAB_TYPE ir_codes_flyvideo[IR_KEYTAB_SIZE] = {
[ 0x0f ] = KEY_0,
Expand Down Expand Up @@ -1290,7 +1290,7 @@ IR_KEYTAB_TYPE ir_codes_winfast[IR_KEYTAB_SIZE] = {

EXPORT_SYMBOL_GPL(ir_codes_winfast);

IR_KEYTAB_TYPE ir_codes_pinnacle[IR_KEYTAB_SIZE] = {
IR_KEYTAB_TYPE ir_codes_pinnacle_color[IR_KEYTAB_SIZE] = {
[ 0x59 ] = KEY_MUTE,
[ 0x4a ] = KEY_POWER,

Expand Down Expand Up @@ -1348,7 +1348,7 @@ IR_KEYTAB_TYPE ir_codes_pinnacle[IR_KEYTAB_SIZE] = {
[ 0x0a ] = KEY_BACKSPACE,
};

EXPORT_SYMBOL_GPL(ir_codes_pinnacle);
EXPORT_SYMBOL_GPL(ir_codes_pinnacle_color);

/* Hauppauge: the newer, gray remotes (seems there are multiple
* slightly different versions), shipped with cx88+ivtv cards.
Expand Down
6 changes: 3 additions & 3 deletions drivers/media/video/em28xx/em28xx-input.c
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Original file line number Diff line number Diff line change
Expand Up @@ -105,7 +105,7 @@ static int get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
return 1;
}

static int get_key_pinnacle_usb(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
static int get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
unsigned char buf[3];

Expand Down Expand Up @@ -148,8 +148,8 @@ void em28xx_set_ir(struct em28xx * dev,struct IR_i2c *ir)
snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (EM28XX Terratec)");
break;
case (EM2820_BOARD_PINNACLE_USB_2):
ir->ir_codes = ir_codes_em_pinnacle_usb;
ir->get_key = get_key_pinnacle_usb;
ir->ir_codes = ir_codes_pinnacle_grey;
ir->get_key = get_key_pinnacle_usb_grey;
snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (EM28XX Pinnacle PCTV)");
break;
case (EM2820_BOARD_HAUPPAUGE_WINTV_USB_2):
Expand Down
60 changes: 45 additions & 15 deletions drivers/media/video/ir-kbd-i2c.c
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Original file line number Diff line number Diff line change
Expand Up @@ -150,12 +150,11 @@ 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)
/* Common (grey or coloured) pinnacle PCTV remote handling
*
* Ricardo Cerqueira <v4l@cerqueira.org>
*/

int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
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;
Expand All @@ -167,9 +166,9 @@ int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
}

for (start = 0; start<4; start++) {
if (b[start] == 0x80) {
code=b[(start+3)%4];
parity=b[(start+2)%4];
if (b[start] == marker) {
code=b[(start+parity_offset+1)%4];
parity=b[(start+parity_offset)%4];
}
}

Expand All @@ -181,16 +180,14 @@ int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
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
*/
/* 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 %= 0x88;
code %= code_modulo;

*ir_raw = code;
*ir_key = code;
Expand All @@ -200,7 +197,40 @@ int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
return 1;
}

EXPORT_SYMBOL_GPL(get_key_pinnacle);
/* 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);

/* ----------------------------------------------------------------------- */

Expand Down
13 changes: 11 additions & 2 deletions drivers/media/video/saa7134/saa7134-input.c
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,10 @@ static unsigned int ir_debug = 0;
module_param(ir_debug, int, 0644);
MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");

static int pinnacle_remote = 0;
module_param(pinnacle_remote, int, 0644); /* Choose Pinnacle PCTV remote */
MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");

#define dprintk(fmt, arg...) if (ir_debug) \
printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
#define i2cdprintk(fmt, arg...) if (ir_debug) \
Expand Down Expand Up @@ -316,8 +320,13 @@ void saa7134_set_i2c_ir(struct saa7134_dev *dev, struct IR_i2c *ir)
switch (dev->board) {
case SAA7134_BOARD_PINNACLE_PCTV_110i:
snprintf(ir->c.name, sizeof(ir->c.name), "Pinnacle PCTV");
ir->get_key = get_key_pinnacle;
ir->ir_codes = ir_codes_pinnacle;
if (pinnacle_remote == 0) {
ir->get_key = get_key_pinnacle_color;
ir->ir_codes = ir_codes_pinnacle_color;
} else {
ir->get_key = get_key_pinnacle_grey;
ir->ir_codes = ir_codes_pinnacle_grey;
}
break;
case SAA7134_BOARD_UPMOST_PURPLE_TV:
snprintf(ir->c.name, sizeof(ir->c.name), "Purple TV");
Expand Down
4 changes: 2 additions & 2 deletions include/media/ir-common.h
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Original file line number Diff line number Diff line change
Expand Up @@ -73,7 +73,7 @@ extern IR_KEYTAB_TYPE ir_codes_cinergy_1400[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_avertv_303[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_dntv_live_dvbt_pro[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_em_terratec[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_em_pinnacle_usb[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_pinnacle_grey[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_flyvideo[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_flydvb[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_cinergy[IR_KEYTAB_SIZE];
Expand All @@ -87,7 +87,7 @@ extern IR_KEYTAB_TYPE ir_codes_pctv_sedna[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_pv951[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_rc5_tv[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_winfast[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_pinnacle[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_pinnacle_color[IR_KEYTAB_SIZE];
extern IR_KEYTAB_TYPE ir_codes_hauppauge_new[IR_KEYTAB_SIZE];

#endif
Expand Down
3 changes: 2 additions & 1 deletion include/media/ir-kbd-i2c.h
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Original file line number Diff line number Diff line change
Expand Up @@ -20,5 +20,6 @@ struct IR_i2c {
int (*get_key)(struct IR_i2c*, u32*, u32*);
};

int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
#endif

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