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path: root/drivers/media/IR/ir-lirc-codec.c
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Diffstat (limited to 'drivers/media/IR/ir-lirc-codec.c')
-rw-r--r--drivers/media/IR/ir-lirc-codec.c124
1 files changed, 100 insertions, 24 deletions
diff --git a/drivers/media/IR/ir-lirc-codec.c b/drivers/media/IR/ir-lirc-codec.c
index 3ba482d96c4b..77b5946413c0 100644
--- a/drivers/media/IR/ir-lirc-codec.c
+++ b/drivers/media/IR/ir-lirc-codec.c
@@ -32,6 +32,7 @@
static int ir_lirc_decode(struct input_dev *input_dev, struct ir_raw_event ev)
{
struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
+ int sample;
if (!(ir_dev->raw->enabled_protocols & IR_TYPE_LIRC))
return 0;
@@ -39,18 +40,20 @@ static int ir_lirc_decode(struct input_dev *input_dev, struct ir_raw_event ev)
if (!ir_dev->raw->lirc.drv || !ir_dev->raw->lirc.drv->rbuf)
return -EINVAL;
+ if (IS_RESET(ev))
+ return 0;
+
IR_dprintk(2, "LIRC data transfer started (%uus %s)\n",
TO_US(ev.duration), TO_STR(ev.pulse));
- ir_dev->raw->lirc.lircdata += ev.duration / 1000;
+ sample = ev.duration / 1000;
if (ev.pulse)
- ir_dev->raw->lirc.lircdata |= PULSE_BIT;
+ sample |= PULSE_BIT;
lirc_buffer_write(ir_dev->raw->lirc.drv->rbuf,
- (unsigned char *) &ir_dev->raw->lirc.lircdata);
+ (unsigned char *) &sample);
wake_up(&ir_dev->raw->lirc.drv->rbuf->wait_poll);
- ir_dev->raw->lirc.lircdata = 0;
return 0;
}
@@ -92,13 +95,14 @@ out:
return ret;
}
-static long ir_lirc_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
+static long ir_lirc_ioctl(struct file *filep, unsigned int cmd,
+ unsigned long __user arg)
{
struct lirc_codec *lirc;
struct ir_input_dev *ir_dev;
int ret = 0;
void *drv_data;
- unsigned long val;
+ unsigned long val = 0;
lirc = lirc_get_pdata(filep);
if (!lirc)
@@ -110,47 +114,106 @@ static long ir_lirc_ioctl(struct file *filep, unsigned int cmd, unsigned long ar
drv_data = ir_dev->props->priv;
- switch (cmd) {
- case LIRC_SET_TRANSMITTER_MASK:
+ if (_IOC_DIR(cmd) & _IOC_WRITE) {
ret = get_user(val, (unsigned long *)arg);
if (ret)
return ret;
+ }
+
+ switch (cmd) {
- if (ir_dev->props && ir_dev->props->s_tx_mask)
+ /* legacy support */
+ case LIRC_GET_SEND_MODE:
+ val = LIRC_CAN_SEND_PULSE & LIRC_CAN_SEND_MASK;
+ break;
+
+ case LIRC_SET_SEND_MODE:
+ if (val != (LIRC_MODE_PULSE & LIRC_CAN_SEND_MASK))
+ return -EINVAL;
+ break;
+
+ /* TX settings */
+ case LIRC_SET_TRANSMITTER_MASK:
+ if (ir_dev->props->s_tx_mask)
ret = ir_dev->props->s_tx_mask(drv_data, (u32)val);
else
return -EINVAL;
break;
case LIRC_SET_SEND_CARRIER:
- ret = get_user(val, (unsigned long *)arg);
- if (ret)
- return ret;
-
- if (ir_dev->props && ir_dev->props->s_tx_carrier)
+ if (ir_dev->props->s_tx_carrier)
ir_dev->props->s_tx_carrier(drv_data, (u32)val);
else
return -EINVAL;
break;
- case LIRC_GET_SEND_MODE:
- val = LIRC_CAN_SEND_PULSE & LIRC_CAN_SEND_MASK;
- ret = put_user(val, (unsigned long *)arg);
+ case LIRC_SET_SEND_DUTY_CYCLE:
+ if (!ir_dev->props->s_tx_duty_cycle)
+ return -ENOSYS;
+
+ if (val <= 0 || val >= 100)
+ return -EINVAL;
+
+ ir_dev->props->s_tx_duty_cycle(ir_dev->props->priv, val);
break;
- case LIRC_SET_SEND_MODE:
- ret = get_user(val, (unsigned long *)arg);
- if (ret)
- return ret;
+ /* RX settings */
+ case LIRC_SET_REC_CARRIER:
+ if (ir_dev->props->s_rx_carrier_range)
+ ret = ir_dev->props->s_rx_carrier_range(
+ ir_dev->props->priv,
+ ir_dev->raw->lirc.carrier_low, val);
+ else
+ return -ENOSYS;
- if (val != (LIRC_MODE_PULSE & LIRC_CAN_SEND_MASK))
+ if (!ret)
+ ir_dev->raw->lirc.carrier_low = 0;
+ break;
+
+ case LIRC_SET_REC_CARRIER_RANGE:
+ if (val >= 0)
+ ir_dev->raw->lirc.carrier_low = val;
+ break;
+
+
+ case LIRC_GET_REC_RESOLUTION:
+ val = ir_dev->props->rx_resolution;
+ break;
+
+ case LIRC_SET_WIDEBAND_RECEIVER:
+ if (ir_dev->props->s_learning_mode)
+ return ir_dev->props->s_learning_mode(
+ ir_dev->props->priv, !!val);
+ else
+ return -ENOSYS;
+
+ /* Generic timeout support */
+ case LIRC_GET_MIN_TIMEOUT:
+ if (!ir_dev->props->max_timeout)
+ return -ENOSYS;
+ val = ir_dev->props->min_timeout / 1000;
+ break;
+
+ case LIRC_GET_MAX_TIMEOUT:
+ if (!ir_dev->props->max_timeout)
+ return -ENOSYS;
+ val = ir_dev->props->max_timeout / 1000;
+ break;
+
+ case LIRC_SET_REC_TIMEOUT:
+ if (val < ir_dev->props->min_timeout ||
+ val > ir_dev->props->max_timeout)
return -EINVAL;
+ ir_dev->props->timeout = val * 1000;
break;
default:
return lirc_dev_fop_ioctl(filep, cmd, arg);
}
+ if (_IOC_DIR(cmd) & _IOC_READ)
+ ret = put_user(val, (unsigned long *)arg);
+
return ret;
}
@@ -196,13 +259,28 @@ static int ir_lirc_register(struct input_dev *input_dev)
features = LIRC_CAN_REC_MODE2;
if (ir_dev->props->tx_ir) {
+
features |= LIRC_CAN_SEND_PULSE;
if (ir_dev->props->s_tx_mask)
features |= LIRC_CAN_SET_TRANSMITTER_MASK;
if (ir_dev->props->s_tx_carrier)
features |= LIRC_CAN_SET_SEND_CARRIER;
+
+ if (ir_dev->props->s_tx_duty_cycle)
+ features |= LIRC_CAN_SET_REC_DUTY_CYCLE;
}
+ if (ir_dev->props->s_rx_carrier_range)
+ features |= LIRC_CAN_SET_REC_CARRIER |
+ LIRC_CAN_SET_REC_CARRIER_RANGE;
+
+ if (ir_dev->props->s_learning_mode)
+ features |= LIRC_CAN_USE_WIDEBAND_RECEIVER;
+
+ if (ir_dev->props->max_timeout)
+ features |= LIRC_CAN_SET_REC_TIMEOUT;
+
+
snprintf(drv->name, sizeof(drv->name), "ir-lirc-codec (%s)",
ir_dev->driver_name);
drv->minor = -1;
@@ -224,8 +302,6 @@ static int ir_lirc_register(struct input_dev *input_dev)
ir_dev->raw->lirc.drv = drv;
ir_dev->raw->lirc.ir_dev = ir_dev;
- ir_dev->raw->lirc.lircdata = PULSE_MASK;
-
return 0;
lirc_register_failed: