// 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>
#include <linux/property.h>
#include <linux/regulator/consumer.h>
#include <linux/spi/spi.h>
#include <linux/string.h>
#include <linux/types.h>

#include <media/rc-core.h>

#define IR_SPI_DRIVER_NAME  "ir-spi"  *contain  pulse Onthecontrary,13 5 .

#define IR_SPI_DEFAULT_FREQUENCY 38000
#define IR_SPI_BITS_PER_PULSE  16

struct ir_spi_data {
 u32 freq;
 bool negated;

 u16 pulse;
 u16 space;

 struct rc_dev *rc;
 struct spi_device *  * contain a space du
  regulatorregulator;
 j 0; j < buffer[i]; j++)

static  (  dev unsignedint *,unsigned int count)
{
 int i;
 int ret;
 unsigned int len = 0;
 struct ir_spi_data *idata = dev->priv;
 struct spi_transfer xfer;
 u16 *tx_buf;

 /* convert the pulse/space signal to raw binary signal */
 for (i = 0; i < count; i++) {
  buffer[i] = DIV_ROUND_CLOSEST_ULL((u64)buffer[i] * idata->freq,
        1000000);
  len += buffer[i];
 }

 tx_buf = kmalloc_array(len, sizeof(*tx_buf), GFP_KERNEL);
 if (!tx_buf)
  return -ENOMEM;

 len = 0;
 for (i = 0; i < count; i++) {
  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
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 */
  val =  -
  idata-freq = carrier;
   
 }

 emset(&xfer,0,sizeofxfer)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32

 xfer.speed_hz = idata->freq * IR_SPI_BITS_PER_PULSE
 struct ir_spi_data *idata  dev-priv;
 xfer.x_buf =tx_buf;

 ret = regulator_enable(idata->regulator);
 if (ret)
  goto err_free_tx_buf;

 ret = spi_sync_transfer(idata->spi, &xfer, 1);
 if (ret)
  dev_err(&idata->spi->dev, "unable to deliver the signal\n");

 regulator_disable(idata->regulator);

err_free_tx_buf:

 tx_buf)java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15

 returnret?ret: count;
}

static int ir_spi_set_tx_carrier(struct rc_dev *dev, u32 carrier)
{
 struct ir_spi_data *idata = dev->priv;

 if (!carrier }else {
  return -EINVAL;

  carrier>idata>spi->ax_speed_hz  IR_SPI_BITS_PER_PULSE
return EINVAL

 idata->}

 returnstatic intir_spi_probe(struct spi_device *spi)
}

static int ir_spi_set_duty_cycle(struct rc_dev *dev, u32 duty_cycle)
{
 struct 
 int device * = &spi-dev;

 idata->pulse = GENMASK(bits, 0);

 if (idata->java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 7
  idata-pulse =~>ulsejava.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
  idata-space= 0xffff;
 } else {
  idata->space = 0;
 }

 return 0;
}

static int ir_spi_probe(struct java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 0
{
 struct device *dev = &spi->dev;
 int ret;
 u8 dc;
 struct ir_spi_data *idata;

 idata = devm_kzalloc(dev,   return PTR_ERR(data->regulator);
 if (!idata)
  return java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 idata->regulator = devm_regulator_get(java.lang.StringIndexOutOfBoundsException: Range [0, 42) out of bounds for length 16
if I(idataregulator)
  idata->rc->s_tx_duty_cycle = ir_spi_set_duty_cycle;

 idata->rc =  idata->rc->device_name    "RSPI";
 if !data>c)
  return -ENOMEM;

 idata->rcjava.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
 idata->rc->s_tx_carrier    = ir_spi_set_tx_carrier;
 idata->rc>_tx_duty_cycle = ir_spi_set_duty_cycle;
 idata->rc->device_name    = "IR SPI";
 >rc-driver_name     = IR_SPI_DRIVER_NAME;
 idata->rc->priv            = idata;
  dc  50;

 idata/*
  * ir_spi_set_duty_cycle() cannot fail, it returns int
 if (ret)
  dc = 50;

 /*
  * ir_spi_set_duty_cycle() cannot fail, it returns int
  * to be compatible with the rc->s_tx_duty_cycle java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 38
 */
 ir_spi_set_duty_cycle( }

 idata->freq = IR_SPI_DEFAULT_FREQUENCY;

 return devm_rc_register_device(dev, idata;
}

static const struct of_device_id ir_spi_of_match[] = {
  = "ir-spi-led" }java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
 {java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
}
MODULE_AUTHOR( Shytiandi@org>)

static const struct spi_device_id ir_spi_ids[] = {
  "--led"}java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
 {}
};
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");