diff options
Diffstat (limited to 'drivers/media/video/saa7134/saa7134-input.c')
| -rw-r--r-- | drivers/media/video/saa7134/saa7134-input.c | 86 |
1 files changed, 80 insertions, 6 deletions
diff --git a/drivers/media/video/saa7134/saa7134-input.c b/drivers/media/video/saa7134/saa7134-input.c index e4252683a59..08848ebc682 100644 --- a/drivers/media/video/saa7134/saa7134-input.c +++ b/drivers/media/video/saa7134/saa7134-input.c @@ -40,16 +40,24 @@ 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)"); +int ir_rc5_remote_gap = 885; +module_param(ir_rc5_remote_gap, int, 0644); +int ir_rc5_key_timeout = 115; +module_param(ir_rc5_key_timeout, int, 0644); + #define dprintk(fmt, arg...) if (ir_debug) \ printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg) #define i2cdprintk(fmt, arg...) if (ir_debug) \ printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg) +/** rc5 functions */ +static int saa7134_rc5_irq(struct saa7134_dev *dev); + /* -------------------- GPIO generic keycode builder -------------------- */ static int build_key(struct saa7134_dev *dev) { - struct saa7134_ir *ir = dev->remote; + struct card_ir *ir = dev->remote; u32 gpio, data; /* rising SAA7134_GPIO_GPRESCAN reads the status */ @@ -134,16 +142,19 @@ static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) void saa7134_input_irq(struct saa7134_dev *dev) { - struct saa7134_ir *ir = dev->remote; + struct card_ir *ir = dev->remote; - if (!ir->polling) + if (!ir->polling && !ir->rc5_gpio) { build_key(dev); + } else if (ir->rc5_gpio) { + saa7134_rc5_irq(dev); + } } static void saa7134_input_timer(unsigned long data) { struct saa7134_dev *dev = (struct saa7134_dev*)data; - struct saa7134_ir *ir = dev->remote; + struct card_ir *ir = dev->remote; unsigned long timeout; build_key(dev); @@ -151,7 +162,7 @@ static void saa7134_input_timer(unsigned long data) mod_timer(&ir->timer, timeout); } -static void saa7134_ir_start(struct saa7134_dev *dev, struct saa7134_ir *ir) +static void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir) { if (ir->polling) { init_timer(&ir->timer); @@ -159,6 +170,19 @@ static void saa7134_ir_start(struct saa7134_dev *dev, struct saa7134_ir *ir) ir->timer.data = (unsigned long)dev; ir->timer.expires = jiffies + HZ; add_timer(&ir->timer); + } else if (ir->rc5_gpio) { + /* set timer_end for code completion */ + init_timer(&ir->timer_end); + ir->timer_end.function = ir_rc5_timer_end; + ir->timer_end.data = (unsigned long)ir; + init_timer(&ir->timer_keyup); + ir->timer_keyup.function = ir_rc5_timer_keyup; + ir->timer_keyup.data = (unsigned long)ir; + ir->shift_by = 2; + ir->start = 0x2; + ir->addr = 0x17; + ir->rc5_key_timeout = ir_rc5_key_timeout; + ir->rc5_remote_gap = ir_rc5_remote_gap; } } @@ -170,13 +194,14 @@ static void saa7134_ir_stop(struct saa7134_dev *dev) int saa7134_input_init1(struct saa7134_dev *dev) { - struct saa7134_ir *ir; + struct card_ir *ir; struct input_dev *input_dev; IR_KEYTAB_TYPE *ir_codes = NULL; u32 mask_keycode = 0; u32 mask_keydown = 0; u32 mask_keyup = 0; int polling = 0; + int rc5_gpio = 0; int ir_type = IR_TYPE_OTHER; int err; @@ -295,6 +320,11 @@ int saa7134_input_init1(struct saa7134_dev *dev) mask_keycode = 0x0001F00; mask_keydown = 0x0040000; break; + case SAA7134_BOARD_ASUSTeK_P7131_DUAL: + ir_codes = ir_codes_asus_pc39; + mask_keydown = 0x0040000; + rc5_gpio = 1; + break; } if (NULL == ir_codes) { printk("%s: Oops: IR config error [card=%d]\n", @@ -316,6 +346,7 @@ int saa7134_input_init1(struct saa7134_dev *dev) ir->mask_keydown = mask_keydown; ir->mask_keyup = mask_keyup; ir->polling = polling; + ir->rc5_gpio = rc5_gpio; /* init input device */ snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)", @@ -402,6 +433,49 @@ void saa7134_set_i2c_ir(struct saa7134_dev *dev, struct IR_i2c *ir) } } + +static int saa7134_rc5_irq(struct saa7134_dev *dev) +{ + struct card_ir *ir = dev->remote; + struct timeval tv; + u32 gap; + unsigned long current_jiffies, timeout; + + /* get time of bit */ + current_jiffies = jiffies; + do_gettimeofday(&tv); + + /* avoid overflow with gap >1s */ + if (tv.tv_sec - ir->base_time.tv_sec > 1) { + gap = 200000; + } else { + gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) + + tv.tv_usec - ir->base_time.tv_usec; + } + + /* active code => add bit */ + if (ir->active) { + /* only if in the code (otherwise spurious IRQ or timer + late) */ + if (ir->last_bit < 28) { + ir->last_bit = (gap - ir_rc5_remote_gap / 2) / + ir_rc5_remote_gap; + ir->code |= 1 << ir->last_bit; + } + /* starting new code */ + } else { + ir->active = 1; + ir->code = 0; + ir->base_time = tv; + ir->last_bit = 0; + + timeout = current_jiffies + (500 + 30 * HZ) / 1000; + mod_timer(&ir->timer_end, timeout); + } + + return 1; +} + /* ---------------------------------------------------------------------- * Local variables: * c-basic-offset: 8 |