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V4L/DVB: saa7134: add code to allow changing IR protocol

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Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2010-03-20 00:25:37 -03:00
parent d152b8b624
commit 0210894956
2 changed files with 63 additions and 4 deletions
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64
drivers/media/video/saa7134/saa7134-input.c
View File

@ -421,6 +421,10 @@ static void saa7134_input_timer(unsigned long data)
void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
{
if (ir->running)
return;
ir->running = 1;
if (ir->polling) {
setup_timer(&ir->timer, saa7134_input_timer,
(unsigned long)dev);
@ -448,8 +452,50 @@ void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
void saa7134_ir_stop(struct saa7134_dev *dev)
{
struct card_ir *ir = dev->remote;
if (!ir->running)
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);
ir->running = 0;
}
int saa7134_ir_change_protocol(void *priv, u64 ir_type)
{
struct saa7134_dev *dev = 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, ir);
} else {
ir->nec_gpio = nec_gpio;
ir->rc5_gpio = rc5_gpio;
}
return 0;
}
int saa7134_input_init1(struct saa7134_dev *dev)
@ -698,6 +744,9 @@ int saa7134_input_init1(struct saa7134_dev *dev)
}
ir->dev = input_dev;
dev->remote = ir;
ir->running = 0;
/* init hardware-specific stuff */
ir->mask_keycode = mask_keycode;
@ -713,6 +762,14 @@ int saa7134_input_init1(struct saa7134_dev *dev)
snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
pci_name(dev->pci));
if (ir_codes->ir_type != IR_TYPE_OTHER) {
ir->props.allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC;
ir->props.priv = dev;
ir->props.change_protocol = saa7134_ir_change_protocol;
/* Set IR protocol */
saa7134_ir_change_protocol(ir->props.priv, ir_codes->ir_type);
}
err = ir_input_init(input_dev, &ir->ir, ir_type);
if (err < 0)
goto err_out_free;
@ -730,13 +787,12 @@ int saa7134_input_init1(struct saa7134_dev *dev)
}
input_dev->dev.parent = &dev->pci->dev;
dev->remote = ir;
saa7134_ir_start(dev, ir);
err = ir_input_register(ir->dev, ir_codes, NULL, MODULE_NAME);
err = ir_input_register(ir->dev, ir_codes, &ir->props, MODULE_NAME);
if (err)
goto err_out_stop;
saa7134_ir_start(dev, ir);
/* the remote isn't as bouncy as a keyboard */
ir->dev->rep[REP_DELAY] = repeat_delay;
ir->dev->rep[REP_PERIOD] = repeat_period;

3
include/media/ir-common.h
View File

@ -51,6 +51,9 @@ struct card_ir {
char name[32];
char phys[32];
u32 running:1;
struct ir_dev_props props;
/* Usual gpio signalling */
u32 mask_keycode;