// SPDX-License-Identifier: GPL-2.0-only /* * Analog Devices ADV7511 HDMI Transmitter Device Driver * * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved. */ /* * This file is named adv7511-v4l2.c so it doesn't conflict with the Analog * Device ADV7511 (config fragment CONFIG_DRM_I2C_ADV7511). */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/i2c.h> #include <linux/delay.h> #include <linux/videodev2.h> #include <linux/workqueue.h> #include <linux/hdmi.h> #include <linux/v4l2-dv-timings.h> #include <media/v4l2-device.h> #include <media/v4l2-common.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-dv-timings.h> #include <media/i2c/adv7511.h> #include <media/cec.h> static int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; #define MASK_ADV7511_EDID_RDY_INT … #define MASK_ADV7511_MSEN_INT … #define MASK_ADV7511_HPD_INT … #define MASK_ADV7511_HPD_DETECT … #define MASK_ADV7511_MSEN_DETECT … #define MASK_ADV7511_EDID_RDY … #define EDID_MAX_RETRIES … #define EDID_DELAY … #define EDID_MAX_SEGM … #define ADV7511_MAX_WIDTH … #define ADV7511_MAX_HEIGHT … #define ADV7511_MIN_PIXELCLOCK … #define ADV7511_MAX_PIXELCLOCK … #define ADV7511_MAX_ADDRS … /* ********************************************************************** * * Arrays with configuration parameters for the ADV7511 * ********************************************************************** */ struct adv7511_state_edid { … }; struct adv7511_state { … }; static void adv7511_check_monitor_present_status(struct v4l2_subdev *sd); static bool adv7511_check_edid_status(struct v4l2_subdev *sd); static void adv7511_setup(struct v4l2_subdev *sd); static int adv7511_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq); static int adv7511_s_clock_freq(struct v4l2_subdev *sd, u32 freq); static const struct v4l2_dv_timings_cap adv7511_timings_cap = …; static inline struct adv7511_state *get_adv7511_state(struct v4l2_subdev *sd) { … } static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) { … } /* ------------------------ I2C ----------------------------------------------- */ static s32 adv_smbus_read_byte_data_check(struct i2c_client *client, u8 command, bool check) { … } static s32 adv_smbus_read_byte_data(struct i2c_client *client, u8 command) { … } static int adv7511_rd(struct v4l2_subdev *sd, u8 reg) { … } static int adv7511_wr(struct v4l2_subdev *sd, u8 reg, u8 val) { … } /* To set specific bits in the register, a clear-mask is given (to be AND-ed), and then the value-mask (to be OR-ed). */ static inline void adv7511_wr_and_or(struct v4l2_subdev *sd, u8 reg, u8 clr_mask, u8 val_mask) { … } static int adv7511_edid_rd(struct v4l2_subdev *sd, uint16_t len, uint8_t *buf) { … } static inline int adv7511_cec_read(struct v4l2_subdev *sd, u8 reg) { … } static int adv7511_cec_write(struct v4l2_subdev *sd, u8 reg, u8 val) { … } static inline int adv7511_cec_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) { … } static int adv7511_pktmem_rd(struct v4l2_subdev *sd, u8 reg) { … } static inline bool adv7511_have_hotplug(struct v4l2_subdev *sd) { … } static inline bool adv7511_have_rx_sense(struct v4l2_subdev *sd) { … } static void adv7511_csc_conversion_mode(struct v4l2_subdev *sd, u8 mode) { … } static void adv7511_csc_coeff(struct v4l2_subdev *sd, u16 A1, u16 A2, u16 A3, u16 A4, u16 B1, u16 B2, u16 B3, u16 B4, u16 C1, u16 C2, u16 C3, u16 C4) { … } static void adv7511_csc_rgb_full2limit(struct v4l2_subdev *sd, bool enable) { … } static void adv7511_set_rgb_quantization_mode(struct v4l2_subdev *sd, struct v4l2_ctrl *ctrl) { … } /* ------------------------------ CTRL OPS ------------------------------ */ static int adv7511_s_ctrl(struct v4l2_ctrl *ctrl) { … } static const struct v4l2_ctrl_ops adv7511_ctrl_ops = …; /* ---------------------------- CORE OPS ------------------------------------------- */ #ifdef CONFIG_VIDEO_ADV_DEBUG static void adv7511_inv_register(struct v4l2_subdev *sd) { … } static int adv7511_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) { … } static int adv7511_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg) { … } #endif struct adv7511_cfg_read_infoframe { … }; static u8 hdmi_infoframe_checksum(u8 *ptr, size_t size) { … } static void log_infoframe(struct v4l2_subdev *sd, const struct adv7511_cfg_read_infoframe *cri) { … } static void adv7511_log_infoframes(struct v4l2_subdev *sd) { … } static int adv7511_log_status(struct v4l2_subdev *sd) { … } /* Power up/down adv7511 */ static int adv7511_s_power(struct v4l2_subdev *sd, int on) { … } #if IS_ENABLED(CONFIG_VIDEO_ADV7511_CEC) static int adv7511_cec_adap_enable(struct cec_adapter *adap, bool enable) { … } static int adv7511_cec_adap_log_addr(struct cec_adapter *adap, u8 addr) { … } static int adv7511_cec_adap_transmit(struct cec_adapter *adap, u8 attempts, u32 signal_free_time, struct cec_msg *msg) { … } static void adv_cec_tx_raw_status(struct v4l2_subdev *sd, u8 tx_raw_status) { … } static const struct cec_adap_ops adv7511_cec_adap_ops = …; #endif /* Enable interrupts */ static void adv7511_set_isr(struct v4l2_subdev *sd, bool enable) { … } /* Interrupt handler */ static int adv7511_isr(struct v4l2_subdev *sd, u32 status, bool *handled) { … } static const struct v4l2_subdev_core_ops adv7511_core_ops = …; /* ------------------------------ VIDEO OPS ------------------------------ */ /* Enable/disable adv7511 output */ static int adv7511_s_stream(struct v4l2_subdev *sd, int enable) { … } static int adv7511_s_dv_timings(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_dv_timings *timings) { … } static int adv7511_g_dv_timings(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_dv_timings *timings) { … } static int adv7511_enum_dv_timings(struct v4l2_subdev *sd, struct v4l2_enum_dv_timings *timings) { … } static int adv7511_dv_timings_cap(struct v4l2_subdev *sd, struct v4l2_dv_timings_cap *cap) { … } static const struct v4l2_subdev_video_ops adv7511_video_ops = …; /* ------------------------------ AUDIO OPS ------------------------------ */ static int adv7511_s_audio_stream(struct v4l2_subdev *sd, int enable) { … } static int adv7511_s_clock_freq(struct v4l2_subdev *sd, u32 freq) { … } static int adv7511_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq) { … } static int adv7511_s_routing(struct v4l2_subdev *sd, u32 input, u32 output, u32 config) { … } static const struct v4l2_subdev_audio_ops adv7511_audio_ops = …; /* ---------------------------- PAD OPS ------------------------------------- */ static int adv7511_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) { … } static int adv7511_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { … } static void adv7511_fill_format(struct adv7511_state *state, struct v4l2_mbus_framefmt *format) { … } static int adv7511_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { … } static int adv7511_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { … } static const struct v4l2_subdev_pad_ops adv7511_pad_ops = …; /* --------------------- SUBDEV OPS --------------------------------------- */ static const struct v4l2_subdev_ops adv7511_ops = …; /* ----------------------------------------------------------------------- */ static void adv7511_dbg_dump_edid(int lvl, int debug, struct v4l2_subdev *sd, int segment, u8 *buf) { … } static void adv7511_notify_no_edid(struct v4l2_subdev *sd) { … } static void adv7511_edid_handler(struct work_struct *work) { … } static void adv7511_audio_setup(struct v4l2_subdev *sd) { … } /* Configure hdmi transmitter. */ static void adv7511_setup(struct v4l2_subdev *sd) { … } static void adv7511_notify_monitor_detect(struct v4l2_subdev *sd) { … } static void adv7511_check_monitor_present_status(struct v4l2_subdev *sd) { … } static bool edid_block_verify_crc(u8 *edid_block) { … } static bool edid_verify_crc(struct v4l2_subdev *sd, u32 segment) { … } static bool edid_verify_header(struct v4l2_subdev *sd, u32 segment) { … } static bool adv7511_check_edid_status(struct v4l2_subdev *sd) { … } static int adv7511_registered(struct v4l2_subdev *sd) { … } static void adv7511_unregistered(struct v4l2_subdev *sd) { … } static const struct v4l2_subdev_internal_ops adv7511_int_ops = …; /* ----------------------------------------------------------------------- */ /* Setup ADV7511 */ static void adv7511_init_setup(struct v4l2_subdev *sd) { … } static int adv7511_probe(struct i2c_client *client) { … } /* ----------------------------------------------------------------------- */ static void adv7511_remove(struct i2c_client *client) { … } /* ----------------------------------------------------------------------- */ static const struct i2c_device_id adv7511_id[] = …; MODULE_DEVICE_TABLE(i2c, adv7511_id); static struct i2c_driver adv7511_driver = …; module_i2c_driver(…) …;
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