// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2022, 2024 Qualcomm Innovation Center, Inc. All rights reserved. */ #include <linux/bitfield.h> #include <linux/bits.h> #include <linux/leds.h> #include <linux/led-class-flash.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/property.h> #include <linux/regmap.h> #include <media/v4l2-flash-led-class.h> /* registers definitions */ #define FLASH_REVISION_REG … #define FLASH_4CH_REVISION_V0P1 … #define FLASH_TYPE_REG … #define FLASH_TYPE_VAL … #define FLASH_SUBTYPE_REG … #define FLASH_SUBTYPE_3CH_PM8150_VAL … #define FLASH_SUBTYPE_3CH_PMI8998_VAL … #define FLASH_SUBTYPE_4CH_VAL … #define FLASH_STS_3CH_OTST1 … #define FLASH_STS_3CH_OTST2 … #define FLASH_STS_3CH_OTST3 … #define FLASH_STS_3CH_BOB_THM_OVERLOAD … #define FLASH_STS_3CH_VPH_DROOP … #define FLASH_STS_3CH_BOB_ILIM_S1 … #define FLASH_STS_3CH_BOB_ILIM_S2 … #define FLASH_STS_3CH_BCL_IBAT … #define FLASH_STS_4CH_VPH_LOW … #define FLASH_STS_4CH_BCL_IBAT … #define FLASH_STS_4CH_BOB_ILIM_S1 … #define FLASH_STS_4CH_BOB_ILIM_S2 … #define FLASH_STS_4CH_OTST2 … #define FLASH_STS_4CH_OTST1 … #define FLASH_STS_4CHG_BOB_THM_OVERLOAD … #define FLASH_TIMER_EN_BIT … #define FLASH_TIMER_VAL_MASK … #define FLASH_TIMER_STEP_MS … #define FLASH_STROBE_HW_SW_SEL_BIT … #define SW_STROBE_VAL … #define HW_STROBE_VAL … #define FLASH_HW_STROBE_TRIGGER_SEL_BIT … #define STROBE_LEVEL_TRIGGER_VAL … #define STROBE_EDGE_TRIGGER_VAL … #define FLASH_STROBE_POLARITY_BIT … #define STROBE_ACTIVE_HIGH_VAL … #define FLASH_IRES_MASK_4CH … #define FLASH_IRES_MASK_3CH … #define FLASH_IRES_12P5MA_VAL … #define FLASH_IRES_5MA_VAL_4CH … #define FLASH_IRES_5MA_VAL_3CH … /* constants */ #define FLASH_CURRENT_MAX_UA … #define TORCH_CURRENT_MAX_UA … #define FLASH_TOTAL_CURRENT_MAX_UA … #define FLASH_CURRENT_DEFAULT_UA … #define TORCH_CURRENT_DEFAULT_UA … #define TORCH_IRES_UA … #define FLASH_IRES_UA … #define FLASH_TIMEOUT_MAX_US … #define FLASH_TIMEOUT_STEP_US … #define UA_PER_MA … /* thermal threshold constants */ #define OTST_3CH_MIN_VAL … #define OTST1_4CH_MIN_VAL … #define OTST1_4CH_V0P1_MIN_VAL … #define OTST2_4CH_MIN_VAL … #define OTST1_MAX_CURRENT_MA … #define OTST2_MAX_CURRENT_MA … #define OTST3_MAX_CURRENT_MA … enum hw_type { … }; enum led_mode { … }; enum led_strobe { … }; enum { … }; static struct reg_field mvflash_3ch_regs[REG_MAX_COUNT] = …; static struct reg_field mvflash_4ch_regs[REG_MAX_COUNT] = …; struct qcom_flash_data { … }; struct qcom_flash_led { … }; static int set_flash_module_en(struct qcom_flash_led *led, bool en) { … } static int update_allowed_flash_current(struct qcom_flash_led *led, u32 *current_ma, bool strobe) { … } static int set_flash_current(struct qcom_flash_led *led, u32 current_ma, enum led_mode mode) { … } static int set_flash_timeout(struct qcom_flash_led *led, u32 timeout_ms) { … } static int set_flash_strobe(struct qcom_flash_led *led, enum led_strobe strobe, bool state) { … } static inline struct qcom_flash_led *flcdev_to_qcom_fled(struct led_classdev_flash *flcdev) { … } static int qcom_flash_brightness_set(struct led_classdev_flash *fled_cdev, u32 brightness) { … } static int qcom_flash_timeout_set(struct led_classdev_flash *fled_cdev, u32 timeout) { … } static int qcom_flash_strobe_set(struct led_classdev_flash *fled_cdev, bool state) { … } static int qcom_flash_strobe_get(struct led_classdev_flash *fled_cdev, bool *state) { … } static int qcom_flash_fault_get(struct led_classdev_flash *fled_cdev, u32 *fault) { … } static int qcom_flash_led_brightness_set(struct led_classdev *led_cdev, enum led_brightness brightness) { … } static const struct led_flash_ops qcom_flash_ops = …; #if IS_ENABLED(CONFIG_V4L2_FLASH_LED_CLASS) static int qcom_flash_external_strobe_set(struct v4l2_flash *v4l2_flash, bool enable) { … } static enum led_brightness qcom_flash_intensity_to_led_brightness(struct v4l2_flash *v4l2_flash, s32 intensity) { … } static s32 qcom_flash_brightness_to_led_intensity(struct v4l2_flash *v4l2_flash, enum led_brightness brightness) { … } static const struct v4l2_flash_ops qcom_v4l2_flash_ops = …; static int qcom_flash_v4l2_init(struct device *dev, struct qcom_flash_led *led, struct fwnode_handle *fwnode) { … } # else static int qcom_flash_v4l2_init(struct device *dev, struct qcom_flash_led *led, struct fwnode_handle *fwnode) { return 0; } #endif static int qcom_flash_register_led_device(struct device *dev, struct fwnode_handle *node, struct qcom_flash_led *led) { … } static int qcom_flash_led_probe(struct platform_device *pdev) { … } static void qcom_flash_led_remove(struct platform_device *pdev) { … } static const struct of_device_id qcom_flash_led_match_table[] = …; MODULE_DEVICE_TABLE(of, qcom_flash_led_match_table); static struct platform_driver qcom_flash_led_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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