/* SECTION: Initialisation */
static int sir_ir_probe(struct platform_device *dev)
{
int retval;
rcdev = devm_rc_allocate_device(&sir_ir_dev->dev, RC_DRIVER_IR_RAW);
if (!rcdev)
return -ENOMEM;
rcdev->input_name = "SIR IrDA port";
rcdev->input_phys = KBUILD_MODNAME "/input0";
rcdev->input_id.bustype = BUS_HOST;
rcdev->input_id.vendor = 0x0001;
rcdev->input_id.product = 0x0001;
rcdev->input_id.version = 0x0100;
rcdev->tx_ir = sir_tx_ir;
rcdev->allowed_protocols = RC_BIT_ALL_IR_DECODER;
rcdev->driver_name = KBUILD_MODNAME;
rcdev->map_name = RC_MAP_RC6_MCE;
rcdev->timeout = IR_DEFAULT_TIMEOUT;
rcdev->dev.parent = &sir_ir_dev->dev;
setup_timer(&timerlist, sir_timeout, 0);
/* get I/O port access and IRQ line */
if (!devm_request_region(&sir_ir_dev->dev, io, 8, KBUILD_MODNAME)) {
pr_err("i/o port 0x%.4x already in use.\n", io);
return -EBUSY;
}
retval = devm_request_irq(&sir_ir_dev->dev, irq, sir_interrupt, 0,
KBUILD_MODNAME, NULL);
if (retval < 0) {
pr_err("IRQ %d already in use.\n", irq);
return retval;
}
pr_info("I/O port 0x%.4x, IRQ %d.\n", io, irq);
retval = devm_rc_register_device(&sir_ir_dev->dev, rcdev);
if (retval < 0)
return retval;
init_hardware();
return 0;
}
static int ir_spi_probe(struct spi_device *spi)
{
int ret;
u8 dc;
struct ir_spi_data *idata;
idata = devm_kzalloc(&spi->dev, sizeof(*idata), GFP_KERNEL);
if (!idata)
return -ENOMEM;
idata->regulator = devm_regulator_get(&spi->dev, "irda_regulator");
if (IS_ERR(idata->regulator))
return PTR_ERR(idata->regulator);
idata->rc = devm_rc_allocate_device(&spi->dev, RC_DRIVER_IR_RAW_TX);
if (!idata->rc)
return -ENOMEM;
idata->rc->tx_ir = ir_spi_tx;
idata->rc->s_tx_carrier = ir_spi_set_tx_carrier;
idata->rc->s_tx_duty_cycle = ir_spi_set_duty_cycle;
idata->rc->driver_name = IR_SPI_DRIVER_NAME;
idata->rc->priv = idata;
idata->spi = spi;
idata->negated = of_property_read_bool(spi->dev.of_node,
"led-active-low");
ret = of_property_read_u8(spi->dev.of_node, "duty-cycle", &dc);
if (ret)
dc = 50;
/* ir_spi_set_duty_cycle cannot fail,
* it returns int to be compatible with the
* rc->s_tx_duty_cycle function
*/
ir_spi_set_duty_cycle(idata->rc, dc);
idata->freq = IR_SPI_DEFAULT_FREQUENCY;
return devm_rc_register_device(&spi->dev, idata->rc);
}
static int serial_ir_probe(struct platform_device *dev)
{
struct rc_dev *rcdev;
int i, nlow, nhigh, result;
rcdev = devm_rc_allocate_device(&dev->dev, RC_DRIVER_IR_RAW);
if (!rcdev)
return -ENOMEM;
if (hardware[type].send_pulse && hardware[type].send_space)
rcdev->tx_ir = serial_ir_tx;
if (hardware[type].set_send_carrier)
rcdev->s_tx_carrier = serial_ir_tx_carrier;
if (hardware[type].set_duty_cycle)
rcdev->s_tx_duty_cycle = serial_ir_tx_duty_cycle;
switch (type) {
case IR_HOMEBREW:
rcdev->input_name = "Serial IR type home-brew";
break;
case IR_IRDEO:
rcdev->input_name = "Serial IR type IRdeo";
break;
case IR_IRDEO_REMOTE:
rcdev->input_name = "Serial IR type IRdeo remote";
break;
case IR_ANIMAX:
rcdev->input_name = "Serial IR type AnimaX";
break;
case IR_IGOR:
rcdev->input_name = "Serial IR type IgorPlug";
break;
}
rcdev->input_phys = KBUILD_MODNAME "/input0";
rcdev->input_id.bustype = BUS_HOST;
rcdev->input_id.vendor = 0x0001;
rcdev->input_id.product = 0x0001;
rcdev->input_id.version = 0x0100;
rcdev->open = serial_ir_open;
rcdev->close = serial_ir_close;
rcdev->dev.parent = &serial_ir.pdev->dev;
rcdev->allowed_protocols = RC_BIT_ALL_IR_DECODER;
rcdev->driver_name = KBUILD_MODNAME;
rcdev->map_name = RC_MAP_RC6_MCE;
rcdev->min_timeout = 1;
rcdev->timeout = IR_DEFAULT_TIMEOUT;
rcdev->max_timeout = 10 * IR_DEFAULT_TIMEOUT;
rcdev->rx_resolution = 250000;
serial_ir.rcdev = rcdev;
setup_timer(&serial_ir.timeout_timer, serial_ir_timeout,
(unsigned long)&serial_ir);
result = devm_request_irq(&dev->dev, irq, serial_ir_irq_handler,
share_irq ? IRQF_SHARED : 0,
KBUILD_MODNAME, &hardware);
if (result < 0) {
if (result == -EBUSY)
dev_err(&dev->dev, "IRQ %d busy\n", irq);
else if (result == -EINVAL)
dev_err(&dev->dev, "Bad irq number or handler\n");
return result;
}
/* Reserve io region. */
if ((iommap &&
(devm_request_mem_region(&dev->dev, iommap, 8 << ioshift,
KBUILD_MODNAME) == NULL)) ||
(!iommap && (devm_request_region(&dev->dev, io, 8,
KBUILD_MODNAME) == NULL))) {
dev_err(&dev->dev, "port %04x already in use\n", io);
dev_warn(&dev->dev, "use 'setserial /dev/ttySX uart none'\n");
dev_warn(&dev->dev,
"or compile the serial port driver as module and\n");
dev_warn(&dev->dev, "make sure this module is loaded first\n");
return -EBUSY;
}
result = hardware_init_port();
if (result < 0)
return result;
/* Initialize pulse/space widths */
init_timing_params(50, 38000);
/* If pin is high, then this must be an active low receiver. */
if (sense == -1) {
/* wait 1/2 sec for the power supply */
msleep(500);
/*
* probe 9 times every 0.04s, collect "votes" for
* active high/low
*/
nlow = 0;
nhigh = 0;
for (i = 0; i < 9; i++) {
if (sinp(UART_MSR) & hardware[type].signal_pin)
nlow++;
else
nhigh++;
msleep(40);
}
sense = nlow >= nhigh ? 1 : 0;
dev_info(&dev->dev, "auto-detected active %s receiver\n",
sense ? "low" : "high");
} else
dev_info(&dev->dev, "Manually using active %s receiver\n",
sense ? "low" : "high");
dev_dbg(&dev->dev, "Interrupt %d, port %04x obtained\n", irq, io);
return devm_rc_register_device(&dev->dev, rcdev);
}
static int meson_ir_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *node = dev->of_node;
struct resource *res;
const char *map_name;
struct meson_ir *ir;
int irq, ret;
ir = devm_kzalloc(dev, sizeof(struct meson_ir), GFP_KERNEL);
if (!ir)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ir->reg = devm_ioremap_resource(dev, res);
if (IS_ERR(ir->reg)) {
dev_err(dev, "failed to map registers\n");
return PTR_ERR(ir->reg);
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(dev, "no irq resource\n");
return irq;
}
ir->rc = devm_rc_allocate_device(dev, RC_DRIVER_IR_RAW);
if (!ir->rc) {
dev_err(dev, "failed to allocate rc device\n");
return -ENOMEM;
}
ir->rc->priv = ir;
ir->rc->device_name = DRIVER_NAME;
ir->rc->input_phys = DRIVER_NAME "/input0";
ir->rc->input_id.bustype = BUS_HOST;
map_name = of_get_property(node, "linux,rc-map-name", NULL);
ir->rc->map_name = map_name ? map_name : RC_MAP_EMPTY;
ir->rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
ir->rc->rx_resolution = US_TO_NS(MESON_TRATE);
ir->rc->min_timeout = 1;
ir->rc->timeout = IR_DEFAULT_TIMEOUT;
ir->rc->max_timeout = 10 * IR_DEFAULT_TIMEOUT;
ir->rc->driver_name = DRIVER_NAME;
spin_lock_init(&ir->lock);
platform_set_drvdata(pdev, ir);
ret = devm_rc_register_device(dev, ir->rc);
if (ret) {
dev_err(dev, "failed to register rc device\n");
return ret;
}
ret = devm_request_irq(dev, irq, meson_ir_irq, 0, NULL, ir);
if (ret) {
dev_err(dev, "failed to request irq\n");
return ret;
}
/* Reset the decoder */
meson_ir_set_mask(ir, IR_DEC_REG1, REG1_RESET, REG1_RESET);
meson_ir_set_mask(ir, IR_DEC_REG1, REG1_RESET, 0);
/* Set general operation mode (= raw/software decoding) */
if (of_device_is_compatible(node, "amlogic,meson6-ir"))
meson_ir_set_mask(ir, IR_DEC_REG1, REG1_MODE_MASK,
FIELD_PREP(REG1_MODE_MASK, DECODE_MODE_RAW));
else
meson_ir_set_mask(ir, IR_DEC_REG2, REG2_MODE_MASK,
FIELD_PREP(REG2_MODE_MASK, DECODE_MODE_RAW));
/* Set rate */
meson_ir_set_mask(ir, IR_DEC_REG0, REG0_RATE_MASK, MESON_TRATE - 1);
/* IRQ on rising and falling edges */
meson_ir_set_mask(ir, IR_DEC_REG1, REG1_IRQSEL_MASK,
FIELD_PREP(REG1_IRQSEL_MASK, REG1_IRQSEL_RISE_FALL));
/* Enable the decoder */
meson_ir_set_mask(ir, IR_DEC_REG1, REG1_ENABLE, REG1_ENABLE);
dev_info(dev, "receiver initialized\n");
return 0;
}
static int gpio_ir_recv_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
struct gpio_rc_dev *gpio_dev;
struct rc_dev *rcdev;
int rc;
if (!np)
return -ENODEV;
gpio_dev = devm_kzalloc(dev, sizeof(*gpio_dev), GFP_KERNEL);
if (!gpio_dev)
return -ENOMEM;
gpio_dev->gpiod = devm_gpiod_get(dev, NULL, GPIOD_IN);
if (IS_ERR(gpio_dev->gpiod)) {
rc = PTR_ERR(gpio_dev->gpiod);
/* Just try again if this happens */
if (rc != -EPROBE_DEFER)
dev_err(dev, "error getting gpio (%d)\n", rc);
return rc;
}
gpio_dev->irq = gpiod_to_irq(gpio_dev->gpiod);
if (gpio_dev->irq < 0)
return gpio_dev->irq;
rcdev = devm_rc_allocate_device(dev, RC_DRIVER_IR_RAW);
if (!rcdev)
return -ENOMEM;
rcdev->priv = gpio_dev;
rcdev->device_name = GPIO_IR_DEVICE_NAME;
rcdev->input_phys = GPIO_IR_DEVICE_NAME "/input0";
rcdev->input_id.bustype = BUS_HOST;
rcdev->input_id.vendor = 0x0001;
rcdev->input_id.product = 0x0001;
rcdev->input_id.version = 0x0100;
rcdev->dev.parent = dev;
rcdev->driver_name = KBUILD_MODNAME;
rcdev->min_timeout = 1;
rcdev->timeout = IR_DEFAULT_TIMEOUT;
rcdev->max_timeout = 10 * IR_DEFAULT_TIMEOUT;
rcdev->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
rcdev->map_name = of_get_property(np, "linux,rc-map-name", NULL);
if (!rcdev->map_name)
rcdev->map_name = RC_MAP_EMPTY;
gpio_dev->rcdev = rcdev;
rc = devm_rc_register_device(dev, rcdev);
if (rc < 0) {
dev_err(dev, "failed to register rc device (%d)\n", rc);
return rc;
}
platform_set_drvdata(pdev, gpio_dev);
return devm_request_irq(dev, gpio_dev->irq, gpio_ir_recv_irq,
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
"gpio-ir-recv-irq", gpio_dev);
}
