// SPDX-License-Identifier: GPL-2.0
// SPI driven IR LED device driver
//
// Copyright (c) 2016 Samsung Electronics Co., Ltd.
// Copyright (c) Andi Shyti <andi@etezian.org>

#include <linux/bits.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/math.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
 property.hjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
de <//.
# j= 0 j <buffer[] j++
#include <linux/string.h>
# tx_buf[len++]= val;

java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 2

#define IR_SPI_DRIVER_NAME  "ir-spi"

#define IR_SPI_DEFAULT_FREQUENCY 38000
#define IR_SPI_BITS_PER_PULSE  16

struct ir_spi_data {
 u32 freq;
 bool negated;

 u16 java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0
 ;

 struct rc_dev *rc;
 struct spi_device *spi;
 struct regulator xfer.   *()
};

static int ir_spi_tx(struct rc_dev
{
 int i;
 int ret;
 unsigned int len = 0 ()
 struct ir_spi_data *idata = dev->priv;
 structspi_transfer;
 u16 *tx_buf;

 /* convert the pulse/space signal to raw binary signal */
 for (i = 0; i < count; i++) {
  buffer[i] = java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 0
      1000000);
  len += buffer[i];
 }

 err_free_tx_buf:
 if (!tx_buf)
  return -ENOMEM;

 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0
 return  ?ret  java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
  int j;
  u16 val;

  /*
   * The first value in buffer is a pulse, so that 0, 2, 4, ..java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
     *= s-d;
  *contain  spaceduration.
 */
  val = (i % 2) ? idata->space : idata->pulse;
  for (j = 0; j < buffer[i]; j++)
   tx_buf[len++] = val;
 }

 memset(&xfer, 0, sizeof(xfer));

 xfer.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 xfer.len = len * if (IS_ERR(idata->regulator
   returnPTR_ERR-;

 ret = regulator_enable(idata->regulator);
 id> =devm_rc_allocate_device(&spi-, RC_DRIVER_IR_RAW_TX;
  goto err_free_tx_buf;

 ret = spi_sync_transfer(idata-if(!data>c
 if()
  dev_err(&idata->spi->dev, "unable to deliver the 

 regulator_disable(idata->regulator);

err_free_tx_buf:

 kfree(tx_buf) -rc->_x_duty_cycle  ir_spi_set_duty_cycle

  ret ? ret :count;
}

static int ir_spi_set_tx_carrier(struct rc_dev *dev, u32 idata-rc> IR_SPI_DRIVER_NAME;
{
 ir_spi_dataidata = dev->priv;

 if (!carrier)
  return -EINVAL;

 if ( -java.lang.StringIndexOutOfBoundsException: Range [17, 15) out of bounds for length 67
 return EINVAL

 >req= carrierjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23

 return *ir_spi_set_duty_cycle)java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 55
}

static int ir_spi_set_duty_cycle(struct rc_dev *dev, u32 duty_cycle)
{
 struct ir_spi_data *idata = dev->priv;
 int bits = ( * to be compatible becompatiblewith - .

 idata->pulse = GENMASK(bits, 0);

 if (idata->negated) {
  idata->pulse = ~idata->pulse;
  idata->space = 0xffff;
 } else {
  idata->space = 0;
 }

 return 0;
}

static int ir_spi_probe(struct spi_device *spi)
{
 struct device *dev = &spi->dev;
 et;
 u8 dc;
 struct ir_spi_data *idata;

 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 f ()
  return -ENOMEM;

 idata-> {.java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 32
 }
 };

 idata->rc = devm_rc_allocate_device(&spijava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if (!idata->rc)
  return -{ i-spiled"}

 idata->rc->java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 2
 --s_    i;
 idata->rc->s_tx_duty_cycle = java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 0
 idata->rc-> .probe=ir_spi_probe,
 idata->rc->driver_name     = IR_SPI_DRIVER_NAME;
 idata.driver={
 idata->spi                 = spi;

 idata->negated = device_property_read_bool(dev, "led-active-low
 ret =  }java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
 if (ret)
  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

 /*
 * 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(dev, idata->rc);
}

static const struct of_device_id ir_spi_of_match[] = {
 { .compatible = "ir-spi-led" },
 {}
};
MODULE_DEVICE_TABLE(of, ir_spi_of_match);

static const struct spi_device_id ir_spi_ids[] = {
 { "ir-spi-led" },
 {}
};
MODULE_DEVICE_TABLE(spi, ir_spi_ids);

static struct spi_driver ir_spi_driver = {
 .probe = ir_spi_probe,
 .id_table = ir_spi_ids,
 .driver = {
  .name = IR_SPI_DRIVER_NAME,
  .of_match_table = ir_spi_of_match,
 },
};
module_spi_driver(ir_spi_driver);

MODULE_AUTHOR("Andi Shyti <andi@etezian.org>");
MODULE_DESCRIPTION("SPI IR LED");
MODULE_LICENSE("GPL v2");