From: Geon Si Jeong Date: Thu, 3 May 2012 05:44:23 +0000 (+1000) Subject: leds: add LED driver for lm3556 chip X-Git-Tag: next-20120503~2^2~106 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=12d29bdf2971ad234cafe579fa4076c5923498d1;p=karo-tx-linux.git leds: add LED driver for lm3556 chip A simple driver for the Texas Instruments LM3556 chip. The LM3556 is a 4 MHz fixed-frequency synchronous boost converter plus 1.5A constant current driver for a high-current white LED. Datasheet: www.national.com/ds/LM/LM3556.pdf Tested on OMAP4430 Signed-off-by: Geon Si Jeong Cc: Richard Purdie Cc: Daniel Jeong Cc: Mark Brown Cc: Greg KH Cc: Wolfram Sang Cc: Shuah Khan Signed-off-by: Andrew Morton --- diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index cede3397bb12..5f12659f9ff1 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -402,6 +402,15 @@ config LEDS_MAX8997 This option enables support for on-chip LED drivers on MAXIM MAX8997 PMIC. +config LEDS_LM3556 + tristate "LED Support for TI LM3556 Chip" + depends on LEDS_CLASS + depends on I2C + help + This option enables support for LEDs connected to LM3556. + LM3556 includes Torch, Flash and Indicator functions and + controlled via I2C. + config LEDS_OT200 tristate "LED support for the Bachmann OT200" depends on LEDS_CLASS && HAS_IOMEM diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 900f9294bd8c..9475bbb55a62 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -46,7 +46,7 @@ obj-$(CONFIG_LEDS_NETXBIG) += leds-netxbig.o obj-$(CONFIG_LEDS_ASIC3) += leds-asic3.o obj-$(CONFIG_LEDS_RENESAS_TPU) += leds-renesas-tpu.o obj-$(CONFIG_LEDS_MAX8997) += leds-max8997.o - +obj-$(CONFIG_LEDS_LM3556) += leds-lm3556.o # LED SPI Drivers obj-$(CONFIG_LEDS_DAC124S085) += leds-dac124s085.o diff --git a/drivers/leds/leds-lm3556.c b/drivers/leds/leds-lm3556.c new file mode 100644 index 000000000000..1f0045c404e4 --- /dev/null +++ b/drivers/leds/leds-lm3556.c @@ -0,0 +1,471 @@ +/* + * Simple driver for Texas Instruments LM3556 LED Flash driver chip (Rev0x03) + * Copyright (C) 2012 Texas Instruments + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define REG_FILT_TIME (0x0) +#define REG_IVFM_MODE (0x1) +#define REG_NTC (0x2) +#define REG_INDIC_TIME (0x3) +#define REG_INDIC_BLINK (0x4) +#define REG_INDIC_PERIOD (0x5) +#define REG_TORCH_TIME (0x6) +#define REG_CONF (0x7) +#define REG_FLASH (0x8) +#define REG_I_CTRL (0x9) +#define REG_ENABLE (0xA) +#define REG_FLAG (0xB) +#define REG_MAX (0xC) + +#define IVFM_FILTER_TIME_SHIFT (3) +#define UVLO_EN_SHIFT (7) +#define HYSTERSIS_SHIFT (5) +#define IVM_D_TH_SHIFT (2) +#define IVFM_ADJ_MODE_SHIFT (0) +#define NTC_EVENT_LVL_SHIFT (5) +#define NTC_TRIP_TH_SHIFT (2) +#define NTC_BIAS_I_LVL_SHIFT (0) +#define INDIC_RAMP_UP_TIME_SHIFT (3) +#define INDIC_RAMP_DN_TIME_SHIFT (0) +#define INDIC_N_BLANK_SHIFT (4) +#define INDIC_PULSE_TIME_SHIFT (0) +#define INDIC_N_PERIOD_SHIFT (0) +#define TORCH_RAMP_UP_TIME_SHIFT (3) +#define TORCH_RAMP_DN_TIME_SHIFT (0) +#define STROBE_USUAGE_SHIFT (7) +#define STROBE_PIN_POLARITY_SHIFT (6) +#define TORCH_PIN_POLARITY_SHIFT (5) +#define TX_PIN_POLARITY_SHIFT (4) +#define TX_EVENT_LVL_SHIFT (3) +#define IVFM_EN_SHIFT (2) +#define NTC_MODE_SHIFT (1) +#define INDIC_MODE_SHIFT (0) +#define INDUCTOR_I_LIMIT_SHIFT (6) +#define FLASH_RAMP_TIME_SHIFT (3) +#define FLASH_TOUT_TIME_SHIFT (0) +#define TORCH_I_SHIFT (4) +#define FLASH_I_SHIFT (0) +#define NTC_EN_SHIFT (7) +#define TX_PIN_EN_SHIFT (6) +#define STROBE_PIN_EN_SHIFT (5) +#define TORCH_PIN_EN_SHIFT (4) +#define PRECHG_MODE_EN_SHIFT (3) +#define PASS_MODE_ONLY_EN_SHIFT (2) +#define MODE_BITS_SHIFT (0) + +#define IVFM_FILTER_TIME_MASK (0x3) +#define UVLO_EN_MASK (0x1) +#define HYSTERSIS_MASK (0x3) +#define IVM_D_TH_MASK (0x7) +#define IVFM_ADJ_MODE_MASK (0x3) +#define NTC_EVENT_LVL_MASK (0x1) +#define NTC_TRIP_TH_MASK (0x7) +#define NTC_BIAS_I_LVL_MASK (0x3) +#define INDIC_RAMP_UP_TIME_MASK (0x7) +#define INDIC_RAMP_DN_TIME_MASK (0x7) +#define INDIC_N_BLANK_MASK (0x7) +#define INDIC_PULSE_TIME_MASK (0x7) +#define INDIC_N_PERIOD_MASK (0x7) +#define TORCH_RAMP_UP_TIME_MASK (0x7) +#define TORCH_RAMP_DN_TIME_MASK (0x7) +#define STROBE_USUAGE_MASK (0x1) +#define STROBE_PIN_POLARITY_MASK (0x1) +#define TORCH_PIN_POLARITY_MASK (0x1) +#define TX_PIN_POLARITY_MASK (0x1) +#define TX_EVENT_LVL_MASK (0x1) +#define IVFM_EN_MASK (0x1) +#define NTC_MODE_MASK (0x1) +#define INDIC_MODE_MASK (0x1) +#define INDUCTOR_I_LIMIT_MASK (0x3) +#define FLASH_RAMP_TIME_MASK (0x7) +#define FLASH_TOUT_TIME_MASK (0x7) +#define TORCH_I_MASK (0x7) +#define FLASH_I_MASK (0xF) +#define NTC_EN_MASK (0x1) +#define TX_PIN_EN_MASK (0x1) +#define STROBE_PIN_EN_MASK (0x1) +#define TORCH_PIN_EN_MASK (0x1) +#define PRECHG_MODE_EN_MASK (0x1) +#define PASS_MODE_ONLY_EN_MASK (0x1) +#define MODE_BITS_MASK (0x13) +#define EX_PIN_CONTROL_MASK (0xF1) +#define EX_PIN_ENABLE_MASK (0x70) + +#define INDIC_PATTERN_SIZE 4 + +struct indicator { + u8 blinking; + u8 period_cnt; +}; + +struct lm3556_chip_data { + struct i2c_client *client; + + struct led_classdev cdev_flash; + struct led_classdev cdev_torch; + struct led_classdev cdev_indicator; + + struct lm3556_platform_data *pdata; + struct mutex lock; + + u8 last_flag; +}; + +/*Indicator Pattern*/ +static struct indicator indicator_pattern[INDIC_PATTERN_SIZE] = { + [0] = {(INDIC_N_BLANK_1 << INDIC_N_BLANK_SHIFT) + | PULSE_TIME_32_MS, INDIC_PERIOD_1}, + [1] = {(INDIC_N_BLANK_15 << INDIC_N_BLANK_SHIFT) + | PULSE_TIME_32_MS, INDIC_PERIOD_2}, + [2] = {(INDIC_N_BLANK_10 << INDIC_N_BLANK_SHIFT) + | PULSE_TIME_32_MS, INDIC_PERIOD_4}, + [3] = {(INDIC_N_BLANK_5 << INDIC_N_BLANK_SHIFT) + | PULSE_TIME_32_MS, INDIC_PERIOD_7}, +}; + +/* i2c access*/ +static int lm3556_read_reg(struct i2c_client *client, u8 reg, u8 * val) +{ + int ret; + + ret = i2c_smbus_read_byte_data(client, reg); + if (ret < 0) { + dev_err(&client->dev, "i2c reading fail at 0x%02x error %d\n", + reg, ret); + return ret; + } + *val = ret & 0xff; + return ret; +} + +static int lm3556_write_reg(struct i2c_client *client, u8 reg, u8 val) +{ + int ret = 0; + + ret = i2c_smbus_write_byte_data(client, reg, val); + + if (ret < 0) + dev_err(&client->dev, "i2c writting fail at 0x%02x\n", reg); + return ret; +} + +static int lm3556_write_bits(struct i2c_client *client, + u8 reg, u8 val, u8 mask, u8 shift) +{ + int ret; + u8 reg_val; + struct lm3556_chip_data *chip = i2c_get_clientdata(client); + + mutex_lock(&chip->lock); + ret = lm3556_read_reg(client, reg, ®_val); + if (ret < 0) + goto out; + reg_val &= (~(mask << shift)); + reg_val |= ((val & mask) << shift); + ret = lm3556_write_reg(client, reg, reg_val); +out: + mutex_unlock(&chip->lock); + return ret; +} + +/* chip initialize*/ +static int lm3556_chip_init(struct lm3556_chip_data *chip) +{ + u8 reg_val; + int ret; + struct i2c_client *client = chip->client; + struct lm3556_platform_data *pdata = chip->pdata; + + /*set config register */ + ret = lm3556_read_reg(client, REG_CONF, ®_val); + if (ret < 0) + goto out; + reg_val &= (~EX_PIN_CONTROL_MASK); + reg_val |= ((pdata->torch_pin_polarity & 0x01) + << TORCH_PIN_POLARITY_SHIFT); + reg_val |= ((pdata->strobe_usuage & 0x01) << STROBE_USUAGE_SHIFT); + reg_val |= ((pdata->strobe_pin_polarity & 0x01) + << STROBE_PIN_POLARITY_SHIFT); + reg_val |= ((pdata->tx_pin_polarity & 0x01) << TX_PIN_POLARITY_SHIFT); + reg_val |= ((pdata->indicator_mode & 0x01) << INDIC_MODE_SHIFT); + ret = lm3556_write_reg(client, REG_CONF, reg_val); + if (ret < 0) + goto out; + + /*set enable register */ + ret = lm3556_read_reg(client, REG_ENABLE, ®_val); + if (ret < 0) + goto out; + reg_val &= (~EX_PIN_ENABLE_MASK); + reg_val |= ((pdata->torch_pin_en & 0x01) << TORCH_PIN_EN_SHIFT); + reg_val |= ((pdata->strobe_pin_en & 0x01) << STROBE_PIN_EN_SHIFT); + reg_val |= ((pdata->tx_pin_en & 0x01) << TX_PIN_EN_SHIFT); + ret = lm3556_write_reg(client, REG_ENABLE, reg_val); + +out: + return ret; +} + +/* chip control*/ +static int lm3556_control(struct lm3556_chip_data *chip, + u8 brightness, enum lm3556_mode opmode) +{ + int ret; + struct i2c_client *client = chip->client; + struct lm3556_platform_data *pdata = chip->pdata; + + ret = lm3556_read_reg(client, REG_FLAG, &chip->last_flag); + if (ret < 0) + goto out; + if (chip->last_flag) + dev_info(&client->dev, "Last FLAG is 0x%x\n", chip->last_flag); + + /*brightness 0 means off-state */ + if (!brightness) + opmode = MODES_STASNDBY; + + switch (opmode) { + case MODES_TORCH: + ret = lm3556_write_bits(client, REG_I_CTRL, + brightness - 1, TORCH_I_MASK, + TORCH_I_SHIFT); + + if (pdata->torch_pin_en) + opmode |= (TORCH_PIN_EN_MASK << TORCH_PIN_EN_SHIFT); + break; + + case MODES_FLASH: + ret = lm3556_write_bits(client, REG_I_CTRL, + brightness - 1, FLASH_I_MASK, + FLASH_I_SHIFT); + break; + + case MODES_INDIC: + ret = lm3556_write_bits(client, REG_I_CTRL, + brightness - 1, TORCH_I_MASK, + TORCH_I_SHIFT); + break; + + case MODES_STASNDBY: + if (pdata->torch_pin_en) + opmode |= (TORCH_PIN_EN_MASK << TORCH_PIN_EN_SHIFT); + break; + + default: + return ret; + } + if (ret < 0) + goto out; + ret = lm3556_write_bits(client, REG_ENABLE, + opmode, MODE_BITS_MASK, MODE_BITS_SHIFT); +out: + return ret; +} + +/*torch */ +static void lm3556_torch_brightness_set(struct led_classdev *cdev, + enum led_brightness brightness) +{ + struct lm3556_chip_data *chip = + container_of(cdev, struct lm3556_chip_data, cdev_torch); + + lm3556_control(chip, brightness, MODES_TORCH); + return; +} + +/* flash */ +static void lm3556_strobe_brightness_set(struct led_classdev *cdev, + enum led_brightness brightness) +{ + struct lm3556_chip_data *chip = + container_of(cdev, struct lm3556_chip_data, cdev_flash); + + lm3556_control(chip, brightness, MODES_FLASH); + return; +} + +/* indicator */ +static void lm3556_indicator_brightness_set(struct led_classdev *cdev, + enum led_brightness brightness) +{ + struct lm3556_chip_data *chip = + container_of(cdev, struct lm3556_chip_data, cdev_indicator); + + lm3556_control(chip, brightness, MODES_INDIC); + return; +} + +static ssize_t lm3556_indicator_pattern_store(struct device *dev, + struct device_attribute *devAttr, + const char *buf, size_t size) +{ + ssize_t ret; + struct i2c_client *client = container_of(dev->parent, + struct i2c_client, dev); + unsigned int state; + + ret = kstrtouint(buf, 10, &state); + if (ret) + goto out; + if (state > INDIC_PATTERN_SIZE - 1) + state = INDIC_PATTERN_SIZE - 1; + + ret = lm3556_write_reg(client, REG_INDIC_BLINK, + indicator_pattern[state].blinking); + if (ret < 0) + goto out; + ret = lm3556_write_reg(client, REG_INDIC_PERIOD, + indicator_pattern[state].period_cnt); + if (ret < 0) + goto out; + return size; +out: + dev_err(&client->dev, "pattern doesn't saved\n"); + return size; +} + +static DEVICE_ATTR(pattern, 0644, NULL, lm3556_indicator_pattern_store); + +/* Module Initialize */ +static int lm3556_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct lm3556_platform_data *pdata = client->dev.platform_data; + struct lm3556_chip_data *chip; + + int err; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { + dev_err(&client->dev, "i2c functionality check fail.\n"); + return -EOPNOTSUPP; + } + + if (pdata == NULL) { + dev_err(&client->dev, "Needs Platform Data.\n"); + return -ENODATA; + } + + chip = + devm_kzalloc(&client->dev, sizeof(struct lm3556_chip_data), + GFP_KERNEL); + if (!chip) + return -ENOMEM; + + chip->client = client; + chip->pdata = pdata; + + mutex_init(&chip->lock); + i2c_set_clientdata(client, chip); + + err = lm3556_chip_init(chip); + if (err < 0) + goto err_chip_init; + + /*flash */ + chip->cdev_flash.name = "flash"; + chip->cdev_flash.max_brightness = 16; + chip->cdev_flash.brightness_set = lm3556_strobe_brightness_set; + err = led_classdev_register((struct device *) + &client->dev, &chip->cdev_flash); + if (err < 0) + goto err_create_flash_file; + /*torch */ + chip->cdev_torch.name = "torch"; + chip->cdev_torch.max_brightness = 8; + chip->cdev_torch.brightness_set = lm3556_torch_brightness_set; + err = led_classdev_register((struct device *) + &client->dev, &chip->cdev_torch); + if (err < 0) + goto err_create_torch_file; + /*indicator */ + chip->cdev_indicator.name = "indicator"; + chip->cdev_indicator.max_brightness = 8; + chip->cdev_indicator.brightness_set = lm3556_indicator_brightness_set; + err = led_classdev_register((struct device *) + &client->dev, &chip->cdev_indicator); + if (err < 0) + goto err_create_indicator_file; + + err = device_create_file(chip->cdev_indicator.dev, &dev_attr_pattern); + if (err < 0) + goto err_create_pattern_file; + + return 0; + +err_create_pattern_file: + led_classdev_unregister(&chip->cdev_indicator); +err_create_indicator_file: + led_classdev_unregister(&chip->cdev_torch); +err_create_torch_file: + led_classdev_unregister(&chip->cdev_flash); +err_create_flash_file: +err_chip_init: + i2c_set_clientdata(client, NULL); + kfree(chip); + return err; +} + +static int lm3556_remove(struct i2c_client *client) +{ + struct lm3556_chip_data *chip = i2c_get_clientdata(client); + + device_remove_file(chip->cdev_indicator.dev, &dev_attr_pattern); + led_classdev_unregister(&chip->cdev_indicator); + led_classdev_unregister(&chip->cdev_torch); + led_classdev_unregister(&chip->cdev_flash); + lm3556_write_reg(client, REG_ENABLE, 0); + + kfree(chip); + return 0; +} + +static const struct i2c_device_id lm3556_id[] = { + {LM3556_NAME, 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, lm3556_id); + +static struct i2c_driver lm3556_i2c_driver = { + .driver = { + .name = LM3556_NAME, + .owner = THIS_MODULE, + .pm = NULL, + }, + .probe = lm3556_probe, + .remove = __devexit_p(lm3556_remove), + .id_table = lm3556_id, +}; + +static int __init lm3556_init(void) +{ + return i2c_add_driver(&lm3556_i2c_driver); +} + +static void __exit lm3556_exit(void) +{ + i2c_del_driver(&lm3556_i2c_driver); +} + +module_init(lm3556_init); +module_exit(lm3556_exit); + +MODULE_DESCRIPTION("Texas Instruments Flash Lighting driver for LM3556"); +MODULE_AUTHOR +("Geon Si Jeong , Woogyom Kim "); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/leds-lm3556.h b/include/linux/leds-lm3556.h new file mode 100644 index 000000000000..115ee65f1c70 --- /dev/null +++ b/include/linux/leds-lm3556.h @@ -0,0 +1,242 @@ +/* + * Simple driver for Texas Instruments LM3556 LED Flash driver chip (Rev0x03) + * Copyright (C) 2012 Texas Instruments + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#ifndef __LINUX_LM3556_H +#define __LINUX_LM3556_H + +#define LM3556_NAME "leds-lm3556" + +enum lm3556_ivfm_filter_time { + IVFM_FILTER_TIME_HALF_CURRENT_STEP = 0, + IVFM_FILTER_TIME_256_USEC, + IVFM_FILTER_TIME_512_USEC, + IVFM_FILTER_TIME_1024_USEC +}; + +enum lm3556_ivfm_adj_mode { + IVFM_ADJ_MODE_REPORT = 0, + IVFM_ADJ_MODESTOP_HOLD, + IVFM_ADJ_MODE_DOWN, + IVFM_ADJ_MODE_UP_DOWN, +}; + +enum lm3556_ivfm_down_threshold { + IVFM_DN_TH_2_7_V = 0, + IVFM_DN_TH_2_8_V, + IVFM_DN_TH_2_9_V, + IVFM_DN_TH_3_0_V, + IVFM_DN_TH_3_1_V, + IVFM_DN_TH_3_2_V, + IVFM_DN_TH_3_3_V, + IVFM_DN_TH_3_4_V, +}; + +enum lm3556_ivfm_hyst { + IVFM_HYST_50_MV = 0, + IVFM_HYST_100_MV, + IVFM_HYST_150_MV, + IVFM_HYST_DIS +}; + +enum lm3556_ntc_curr_lvl { + NTC_CURR_LVL_25_UA = 0, + NTC_CURR_LVL_50_UA, + NTC_CURR_LVL_75_UA, + NTC_CURR_LVL_100_UA +}; + +enum lm3556_ntc_trip_threshold { + NTC_TRIP_THRESHOLD_200_MV = 0, + NTC_TRIP_THRESHOLD_300_MV, + NTC_TRIP_THRESHOLD_400_MV, + NTC_TRIP_THRESHOLD_500_MV, + NTC_TRIP_THRESHOLD_600_MV, + NTC_TRIP_THRESHOLD_700_MV, + NTC_TRIP_THRESHOLD_800_MV, + NTC_TRIP_THRESHOLD_900_MV +}; + +enum lm3556_ntc_event_lvl { + NTC_EVENT_LVL_STANDBY = 0, + NTC_EVENT_LVL_REDUCE_MIN_TORCH +}; + +enum lm3556_torch_indic_ramp_time { + TORCH_INDIC_RAMP_TIME_16_MS = 0, + TORCH_INDIC_RAMP_TIME_32_MS, + TORCH_INDIC_RAMP_TIME_64_MS, + TORCH_INDIC_RAMP_TIME_128_MS, + TORCH_INDIC_RAMP_TIME_256_MS, + TORCH_INDIC_RAMP_TIME_512_MS, + TORCH_INDIC_RAMP_TIME_1024_MS, + TORCH_INDIC_RAMP_TIME_2048_MS, +}; + +enum lm3556_indic_pulse_time { + PULSE_TIME_0_MS = 0, + PULSE_TIME_32_MS, + PULSE_TIME_64_MS, + PULSE_TIME_92_MS, + PULSE_TIME_128_MS, + PULSE_TIME_160_MS, + PULSE_TIME_196_MS, + PULSE_TIME_224_MS, + PULSE_TIME_256_MS, + PULSE_TIME_288_MS, + PULSE_TIME_320_MS, + PULSE_TIME_352_MS, + PULSE_TIME_384_MS, + PULSE_TIME_416_MS, + PULSE_TIME_448_MS, + PULSE_TIME_480_MS, +}; + +enum lm3556_indic_n_blank { + INDIC_N_BLANK_0 = 0, + INDIC_N_BLANK_1, + INDIC_N_BLANK_2, + INDIC_N_BLANK_3, + INDIC_N_BLANK_4, + INDIC_N_BLANK_5, + INDIC_N_BLANK_6, + INDIC_N_BLANK_7, + INDIC_N_BLANK_8, + INDIC_N_BLANK_9, + INDIC_N_BLANK_10, + INDIC_N_BLANK_11, + INDIC_N_BLANK_12, + INDIC_N_BLANK_13, + INDIC_N_BLANK_14, + INDIC_N_BLANK_15, +}; + +enum lm3556_indic_period { + INDIC_PERIOD_0 = 0, + INDIC_PERIOD_1, + INDIC_PERIOD_2, + INDIC_PERIOD_3, + INDIC_PERIOD_4, + INDIC_PERIOD_5, + INDIC_PERIOD_6, + INDIC_PERIOD_7, +}; + +enum lm3556_indic_mode { + INDIC_MODE_INTERNAL = 0, + INDIC_MODE_EXTERNAL, +}; + +enum lm3556_flash_timeout { + FLASH_TIMEOUT_50_MS = 0, + FLASH_TIMEOUT_100_MS, + FLASH_TIMEOUT_150_MS, + FLASH_TIMEOUT_200_MS, + FLASH_TIMEOUT_250_MS, + FLASH_TIMEOUT_300_MS, + FLASH_TIMEOUT_350_MS, + FLASH_TIMEOUT_400_MS, +}; + +enum lm3556_flash_ramp_time { + FLASH_RAMP_TIME_256_US = 0, + FLASH_RAMP_TIME_512_US, + FLASH_RAMP_TIME_1024_US, + FLASH_RAMP_TIME_2048_US, + FLASH_RAMP_TIME_4096_US, + FLASH_RAMP_TIME_8192_US, + FLASH_RAMP_TIME_16384_US, + FLASH_RAMP_TIME_32768_US, +}; + +enum lm3556_inductor_current_limit { + INDIC_I_LIMIT_1500_MA = 0, + INDIC_I_LIMIT_2000_MA, + INDIC_I_LIMIT_2500_MA, + INDIC_I_LIMIT_3000_MA +}; + +enum lm3556_flash_current { + FLASH_I_93750_UA = 0, + FLASH_I_187500_UA, + FLASH_I_281250_UA, + FLASH_I_375000_UA, + FLASH_I_468750_UA, + FLASH_I_562500_UA, + FLASH_I_656250_UA, + FLASH_I_750000_UA, + FLASH_I_843750_UA, + FLASH_I_937500_UA, + FLASH_I_1031250_UA, + FLASH_I_1125000_UA, + FLASH_I_1218750_UA, + FLASH_I_1312500_UA, + FLASH_I_1406250_UA, + FLASH_I_1500000_UA, + +}; + +enum lm3556_torch_current { + TORCH_I_46880_UA = 0, + TORCH_I_93750_UA, + TORCH_I_1406300_UA, + TORCH_I_187500_UA, + TORCH_I_234380_UA, + TORCH_I_281250_UA, + TORCH_I_328130_UA, + TORCH_I_375000_UA, +}; + +enum lm3556_mode { + MODES_STASNDBY = 0, + MODES_INDIC, + MODES_TORCH, + MODES_FLASH +}; + +enum lm3556_pass_mode { + PASS_MODE_NORMAL = 0, + PASS_MODE_PASS_ONLY +}; + +enum lm3556_prechg_mode { + PRE_CHARGE_MODE_NORMAL = 0, + PRE_CHARGE_MODE_PRE_CHARGE +}; + +enum lm3556_pin_polarity { + PIN_LOW_ACTIVE = 0, + PIN_HIGH_ACTIVE, +}; + +enum lm3556_pin_enable { + PIN_DISABLED = 0, + PIN_ENABLED, +}; + +enum lm3556_strobe_usuage { + STROBE_EDGE_DETECT = 0, + STROBE_LEVEL_DETECT, +}; + +struct lm3556_platform_data { + enum lm3556_pin_enable torch_pin_en; + enum lm3556_pin_polarity torch_pin_polarity; + + enum lm3556_strobe_usuage strobe_usuage; + enum lm3556_pin_enable strobe_pin_en; + enum lm3556_pin_polarity strobe_pin_polarity; + + enum lm3556_pin_enable tx_pin_en; + enum lm3556_pin_polarity tx_pin_polarity; + + enum lm3556_indic_mode indicator_mode; +}; + +#endif /* __LINUX_LM3556_H */