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[media] IR: ene_ir: add support for carrier reports 

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Maxim Levitsky 2010-10-16 19:56:29 -03:00 committed by Mauro Carvalho Chehab
parent 4651918a4a
commit e1b1ddbe8f
1 changed files with 29 additions and 8 deletions
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37
drivers/media/IR/ene_ir.c
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@ -193,10 +193,11 @@ static int ene_hw_detect(struct ene_device *dev)
/* Sense current received carrier */
void ene_rx_sense_carrier(struct ene_device *dev)
{
DEFINE_IR_RAW_EVENT(ev);
int carrier, duty_cycle;
int period = ene_read_reg(dev, ENE_CIRCAR_PRD);
int hperiod = ene_read_reg(dev, ENE_CIRCAR_HPRD);
int carrier, duty_cycle;
if (!(period & ENE_CIRCAR_PRD_VALID))
return;
@ -209,13 +210,16 @@ void ene_rx_sense_carrier(struct ene_device *dev)
dbg("RX: hardware carrier period = %02x", period);
dbg("RX: hardware carrier pulse period = %02x", hperiod);
carrier = 2000000 / period;
duty_cycle = (hperiod * 100) / period;
dbg("RX: sensed carrier = %d Hz, duty cycle %d%%",
carrier, duty_cycle);
/* TODO: Send carrier & duty cycle to IR layer */
carrier, duty_cycle);
if (dev->carrier_detect_enabled) {
ev.carrier_report = true;
ev.carrier = carrier;
ev.duty_cycle = duty_cycle;
ir_raw_event_store(dev->idev, &ev);
}
}
/* this enables/disables the CIR RX engine */
@ -724,7 +728,7 @@ static irqreturn_t ene_isr(int irq, void *data)
dbg_verbose("RX interrupt");
if (dev->carrier_detect_enabled || debug)
if (dev->hw_learning_and_tx_capable)
ene_rx_sense_carrier(dev);
/* On hardware that don't support extra buffer we need to trust
@ -897,6 +901,23 @@ static int ene_set_learning_mode(void *data, int enable)
return 0;
}
static int ene_set_carrier_report(void *data, int enable)
{
struct ene_device *dev = (struct ene_device *)data;
unsigned long flags;
if (enable == dev->carrier_detect_enabled)
return 0;
spin_lock_irqsave(&dev->hw_lock, flags);
dev->carrier_detect_enabled = enable;
ene_rx_disable(dev);
ene_rx_setup(dev);
ene_rx_enable(dev);
spin_unlock_irqrestore(&dev->hw_lock, flags);
return 0;
}
/* outside interface: enable or disable idle mode */
static void ene_rx_set_idle(void *data, bool idle)
{
@ -1029,7 +1050,7 @@ static int ene_probe(struct pnp_dev *pnp_dev, const struct pnp_device_id *id)
ir_props->s_tx_mask = ene_set_tx_mask;
ir_props->s_tx_carrier = ene_set_tx_carrier;
ir_props->s_tx_duty_cycle = ene_set_tx_duty_cycle;
/* ir_props->s_carrier_report = ene_set_carrier_report; */
ir_props->s_carrier_report = ene_set_carrier_report;
}
ene_setup_hw_buffer(dev);