redonkable/alistair23-linux
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[media] IR: ene_ir: few bugfixes

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This is a result of last round of debug with
Sami R <maesesami@gmail.com>.

Thank you Sami very much!

The biggest bug I fixed is that,
I was clobbering the CIRCFG register after it is setup
That wasn't a good idea really

And some small refactoring, etc.

Tested-by: Sami R <maesesami@gmail.com>
Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Acked-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Maxim Levitsky 2010-10-15 13:06:37 -03:00 committed by Mauro Carvalho Chehab
parent 2a48489491
commit a06423c9a2
1 changed files with 20 additions and 23 deletions
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43
drivers/media/IR/ene_ir.c
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@ -156,11 +156,12 @@ static int ene_hw_detect(struct ene_device *dev)
ene_notice("Firmware regs: %02x %02x", fw_reg1, fw_reg2);
dev->hw_use_gpio_0a = fw_reg2 & ENE_FW2_GP0A;
dev->hw_learning_and_tx_capable = fw_reg2 & ENE_FW2_LEARNING;
dev->hw_extra_buffer = fw_reg1 & ENE_FW1_HAS_EXTRA_BUF;
dev->hw_fan_input = dev->hw_learning_and_tx_capable &&
(fw_reg2 & ENE_FW2_FAN_INPUT);
dev->hw_use_gpio_0a = !!(fw_reg2 & ENE_FW2_GP0A);
dev->hw_learning_and_tx_capable = !!(fw_reg2 & ENE_FW2_LEARNING);
dev->hw_extra_buffer = !!(fw_reg1 & ENE_FW1_HAS_EXTRA_BUF);
if (dev->hw_learning_and_tx_capable)
dev->hw_fan_input = !!(fw_reg2 & ENE_FW2_FAN_INPUT);
ene_notice("Hardware features:");
@ -255,6 +256,8 @@ static void ene_rx_setup(struct ene_device *dev)
dev->carrier_detect_enabled;
int sample_period_adjust = 0;
/* This selects RLC input and clears CFG2 settings */
ene_write_reg(dev, ENE_CIRCFG2, 0x00);
/* set sample period*/
if (sample_period == ENE_DEFAULT_SAMPLE_PERIOD)
@ -268,7 +271,9 @@ static void ene_rx_setup(struct ene_device *dev)
if (dev->hw_revision < ENE_HW_C)
goto select_timeout;
if (learning_mode && dev->hw_learning_and_tx_capable) {
if (learning_mode) {
WARN_ON(!dev->hw_learning_and_tx_capable);
/* Enable the opposite of the normal input
That means that if GPIO40 is normally used, use GPIO0A
@ -282,6 +287,7 @@ static void ene_rx_setup(struct ene_device *dev)
ene_set_reg_mask(dev, ENE_CIRCFG, ENE_CIRCFG_CARR_DEMOD);
/* Enable carrier detection */
ene_write_reg(dev, ENE_CIRCAR_PULS, 0x63);
ene_set_clear_reg_mask(dev, ENE_CIRCFG2, ENE_CIRCFG2_CARR_DETECT,
dev->carrier_detect_enabled || debug);
} else {
@ -343,19 +349,9 @@ static void ene_rx_enable(struct ene_device *dev)
ene_write_reg(dev, ENE_IRQ, reg_value);
}
if (dev->hw_revision >= ENE_HW_C)
ene_write_reg(dev, ENE_CIRCAR_PULS, 0x63);
/* Enable the inputs */
ene_write_reg(dev, ENE_CIRCFG2, 0x00);
if (dev->rx_fan_input_inuse) {
ene_enable_cir_engine(dev, false);
ene_enable_fan_input(dev, true);
} else {
ene_enable_cir_engine(dev, true);
ene_enable_fan_input(dev, false);
}
/* Enable inputs */
ene_enable_fan_input(dev, dev->rx_fan_input_inuse);
ene_enable_cir_engine(dev, !dev->rx_fan_input_inuse);
/* ack any pending irqs - just in case */
ene_irq_status(dev);
@ -793,12 +789,10 @@ static void ene_setup_settings(struct ene_device *dev)
dev->tx_period = 32;
dev->tx_duty_cycle = 50; /*%*/
dev->transmitter_mask = 0x03;
dev->learning_enabled =
(learning_mode && dev->hw_learning_and_tx_capable);
dev->learning_enabled = learning_mode;
/* Set reasonable default timeout */
dev->props->timeout = MS_TO_NS(15000);
dev->props->timeout = MS_TO_NS(150000);
}
/* outside interface: called on first open*/
@ -1015,6 +1009,9 @@ static int ene_probe(struct pnp_dev *pnp_dev, const struct pnp_device_id *id)
ene_warn("Simulation of TX activated");
}
if (!dev->hw_learning_and_tx_capable)
learning_mode = false;
ir_props->driver_type = RC_DRIVER_IR_RAW;
ir_props->allowed_protos = IR_TYPE_ALL;
ir_props->priv = dev;