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path: root/drivers/media/video/saa7134/saa7134-input.c
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Diffstat (limited to 'drivers/media/video/saa7134/saa7134-input.c')
-rw-r--r--drivers/media/video/saa7134/saa7134-input.c226
1 files changed, 6 insertions, 220 deletions
diff --git a/drivers/media/video/saa7134/saa7134-input.c b/drivers/media/video/saa7134/saa7134-input.c
index fbb2ff171008..72562b8cf3be 100644
--- a/drivers/media/video/saa7134/saa7134-input.c
+++ b/drivers/media/video/saa7134/saa7134-input.c
@@ -54,11 +54,8 @@ MODULE_PARM_DESC(disable_other_ir, "disable full codes of "
#define i2cdprintk(fmt, arg...) if (ir_debug) \
printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg)
-/* Helper functions for RC5 and NEC decoding at GPIO16 or GPIO18 */
-static int saa7134_rc5_irq(struct saa7134_dev *dev);
-static int saa7134_nec_irq(struct saa7134_dev *dev);
+/* Helper function for raw decoding at GPIO16 or GPIO18 */
static int saa7134_raw_decode_irq(struct saa7134_dev *dev);
-static void nec_task(unsigned long data);
/* -------------------- GPIO generic keycode builder -------------------- */
@@ -397,12 +394,8 @@ void saa7134_input_irq(struct saa7134_dev *dev)
if (!ir->running)
return;
- if (ir->nec_gpio) {
- saa7134_nec_irq(dev);
- } else if (!ir->polling && !ir->rc5_gpio && !ir->raw_decode) {
+ if (!ir->polling && !ir->raw_decode) {
build_key(dev);
- } else if (ir->rc5_gpio) {
- saa7134_rc5_irq(dev);
} else if (ir->raw_decode) {
saa7134_raw_decode_irq(dev);
}
@@ -448,17 +441,6 @@ static int __saa7134_ir_start(void *priv)
(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;
- ir->shift_by = 2;
- ir->start = 0x2;
- ir->addr = 0x17;
- ir->rc5_remote_gap = ir_rc5_remote_gap;
- } else if (ir->nec_gpio) {
- tasklet_init(&ir->tlet, nec_task, (unsigned long)dev);
} else if (ir->raw_decode) {
/* set timer_end for code completion */
init_timer(&ir->timer_end);
@@ -486,10 +468,6 @@ static void __saa7134_ir_stop(void *priv)
return;
if (dev->remote->polling)
del_timer_sync(&dev->remote->timer);
- else if (ir->rc5_gpio)
- del_timer_sync(&ir->timer_end);
- else if (ir->nec_gpio)
- tasklet_kill(&ir->tlet);
else if (ir->raw_decode) {
del_timer_sync(&ir->timer_end);
ir->active = 0;
@@ -531,40 +509,6 @@ static void saa7134_ir_close(struct rc_dev *rc)
__saa7134_ir_stop(dev);
}
-
-static int saa7134_ir_change_protocol(struct rc_dev *rc, u64 ir_type)
-{
- struct saa7134_dev *dev = rc->priv;
- struct card_ir *ir = dev->remote;
- u32 nec_gpio, rc5_gpio;
-
- if (ir_type == IR_TYPE_RC5) {
- dprintk("Changing protocol to RC5\n");
- nec_gpio = 0;
- rc5_gpio = 1;
- } else if (ir_type == IR_TYPE_NEC) {
- dprintk("Changing protocol to NEC\n");
- nec_gpio = 1;
- rc5_gpio = 0;
- } else {
- dprintk("IR protocol type %ud is not supported\n",
- (unsigned)ir_type);
- return -EINVAL;
- }
-
- if (ir->running) {
- saa7134_ir_stop(dev);
- ir->nec_gpio = nec_gpio;
- ir->rc5_gpio = rc5_gpio;
- saa7134_ir_start(dev);
- } else {
- ir->nec_gpio = nec_gpio;
- ir->rc5_gpio = rc5_gpio;
- }
-
- return 0;
-}
-
int saa7134_input_init1(struct saa7134_dev *dev)
{
struct card_ir *ir;
@@ -574,10 +518,7 @@ int saa7134_input_init1(struct saa7134_dev *dev)
u32 mask_keydown = 0;
u32 mask_keyup = 0;
int polling = 0;
- int rc5_gpio = 0;
- int nec_gpio = 0;
int raw_decode = 0;
- int allow_protocol_change = 0;
int err;
if (dev->has_remote != SAA7134_REMOTE_GPIO)
@@ -767,9 +708,10 @@ int saa7134_input_init1(struct saa7134_dev *dev)
break;
case SAA7134_BOARD_ENCORE_ENLTV_FM53:
ir_codes = RC_MAP_ENCORE_ENLTV_FM53;
- mask_keydown = 0x0040000;
- mask_keycode = 0x00007f;
- nec_gpio = 1;
+ mask_keydown = 0x0040000; /* Enable GPIO18 line on both edges */
+ mask_keyup = 0x0040000;
+ mask_keycode = 0xffff;
+ raw_decode = 1;
break;
case SAA7134_BOARD_10MOONSTVMASTER3:
ir_codes = RC_MAP_ENCORE_ENLTV;
@@ -829,8 +771,6 @@ 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;
- ir->nec_gpio = nec_gpio;
ir->raw_decode = raw_decode;
/* init input device */
@@ -845,11 +785,6 @@ int saa7134_input_init1(struct saa7134_dev *dev)
if (raw_decode)
rc->driver_type = RC_DRIVER_IR_RAW;
- if (!raw_decode && allow_protocol_change) {
- rc->allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC;
- rc->change_protocol = saa7134_ir_change_protocol;
- }
-
rc->input_name = ir->name;
rc->input_phys = ir->phys;
rc->input_id.bustype = BUS_PCI;
@@ -1023,152 +958,3 @@ static int saa7134_raw_decode_irq(struct saa7134_dev *dev)
return 1;
}
-
-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;
-}
-
-static void nec_task(unsigned long data)
-{
- struct saa7134_dev *dev = (struct saa7134_dev *) data;
- struct card_ir *ir;
- struct timeval tv;
- int count, pulse, oldpulse, gap;
- u32 ircode = 0, not_code = 0;
- int ngap = 0;
-
- if (!data) {
- printk(KERN_ERR "saa713x/ir: Can't recover dev struct\n");
- /* GPIO will be kept disabled */
- return;
- }
-
- ir = dev->remote;
-
- /* rising SAA7134_GPIO_GPRESCAN reads the status */
- saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
- saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
-
- oldpulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
- pulse = oldpulse;
-
- do_gettimeofday(&tv);
- ir->base_time = tv;
-
- /* Decode NEC pulsecode. This code can take up to 76.5 ms to run.
- Unfortunately, using IRQ to decode pulse didn't work, since it uses
- a pulse train of 38KHz. This means one pulse on each 52 us
- */
- do {
- /* Wait until the end of pulse/space or 5 ms */
- for (count = 0; count < 500; count++) {
- udelay(10);
- /* rising SAA7134_GPIO_GPRESCAN reads the status */
- saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
- saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
- pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
- & ir->mask_keydown;
- if (pulse != oldpulse)
- break;
- }
-
- do_gettimeofday(&tv);
- gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
- tv.tv_usec - ir->base_time.tv_usec;
-
- if (!pulse) {
- /* Bit 0 has 560 us, while bit 1 has 1120 us.
- Do something only if bit == 1
- */
- if (ngap && (gap > 560 + 280)) {
- unsigned int shift = ngap - 1;
-
- /* Address first, then command */
- if (shift < 8) {
- shift += 8;
- ircode |= 1 << shift;
- } else if (shift < 16) {
- not_code |= 1 << shift;
- } else if (shift < 24) {
- shift -= 16;
- ircode |= 1 << shift;
- } else {
- shift -= 24;
- not_code |= 1 << shift;
- }
- }
- ngap++;
- }
-
-
- ir->base_time = tv;
-
- /* TIMEOUT - Long pulse */
- if (gap >= 5000)
- break;
- oldpulse = pulse;
- } while (ngap < 32);
-
- if (ngap == 32) {
- /* FIXME: should check if not_code == ~ircode */
- ir->code = ir_extract_bits(ircode, ir->mask_keycode);
-
- dprintk("scancode = 0x%02x (code = 0x%02x, notcode= 0x%02x)\n",
- ir->code, ircode, not_code);
-
- ir_keydown(ir->dev, ir->code, 0);
- } else {
- dprintk("Repeat last key\n");
- ir_repeat(ir->dev);
- }
-
- saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
-}
-
-static int saa7134_nec_irq(struct saa7134_dev *dev)
-{
- struct card_ir *ir = dev->remote;
-
- saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
- tasklet_schedule(&ir->tlet);
-
- return 1;
-}
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-27 05:01:10 +0000