// SPDX-License-Identifier: GPL-2.0-only /* * tc358743 - Toshiba HDMI to CSI-2 bridge * * Copyright 2015 Cisco Systems, Inc. and/or its affiliates. All rights * reserved. */ /* * References (c = chapter, p = page): * REF_01 - Toshiba, TC358743XBG (H2C), Functional Specification, Rev 0.60 * REF_02 - Toshiba, TC358743XBG_HDMI-CSI_Tv11p_nm.xls */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/i2c.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/interrupt.h> #include <linux/timer.h> #include <linux/of_graph.h> #include <linux/videodev2.h> #include <linux/workqueue.h> #include <linux/v4l2-dv-timings.h> #include <linux/hdmi.h> #include <media/cec.h> #include <media/v4l2-dv-timings.h> #include <media/v4l2-device.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-event.h> #include <media/v4l2-fwnode.h> #include <media/i2c/tc358743.h> #include "tc358743_regs.h" static int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; #define EDID_NUM_BLOCKS_MAX … #define EDID_BLOCK_SIZE … #define I2C_MAX_XFER_SIZE … #define POLL_INTERVAL_CEC_MS … #define POLL_INTERVAL_MS … static const struct v4l2_dv_timings_cap tc358743_timings_cap = …; struct tc358743_state { … }; static void tc358743_enable_interrupts(struct v4l2_subdev *sd, bool cable_connected); static int tc358743_s_ctrl_detect_tx_5v(struct v4l2_subdev *sd); static inline struct tc358743_state *to_state(struct v4l2_subdev *sd) { … } /* --------------- I2C --------------- */ static void i2c_rd(struct v4l2_subdev *sd, u16 reg, u8 *values, u32 n) { … } static void i2c_wr(struct v4l2_subdev *sd, u16 reg, u8 *values, u32 n) { … } static noinline u32 i2c_rdreg(struct v4l2_subdev *sd, u16 reg, u32 n) { … } static noinline void i2c_wrreg(struct v4l2_subdev *sd, u16 reg, u32 val, u32 n) { … } static u8 i2c_rd8(struct v4l2_subdev *sd, u16 reg) { … } static void i2c_wr8(struct v4l2_subdev *sd, u16 reg, u8 val) { … } static void i2c_wr8_and_or(struct v4l2_subdev *sd, u16 reg, u8 mask, u8 val) { … } static u16 i2c_rd16(struct v4l2_subdev *sd, u16 reg) { … } static void i2c_wr16(struct v4l2_subdev *sd, u16 reg, u16 val) { … } static void i2c_wr16_and_or(struct v4l2_subdev *sd, u16 reg, u16 mask, u16 val) { … } static u32 i2c_rd32(struct v4l2_subdev *sd, u16 reg) { … } static void i2c_wr32(struct v4l2_subdev *sd, u16 reg, u32 val) { … } /* --------------- STATUS --------------- */ static inline bool is_hdmi(struct v4l2_subdev *sd) { … } static inline bool tx_5v_power_present(struct v4l2_subdev *sd) { … } static inline bool no_signal(struct v4l2_subdev *sd) { … } static inline bool no_sync(struct v4l2_subdev *sd) { … } static inline bool audio_present(struct v4l2_subdev *sd) { … } static int get_audio_sampling_rate(struct v4l2_subdev *sd) { … } /* --------------- TIMINGS --------------- */ static inline unsigned fps(const struct v4l2_bt_timings *t) { … } static int tc358743_get_detected_timings(struct v4l2_subdev *sd, struct v4l2_dv_timings *timings) { … } /* --------------- HOTPLUG / HDCP / EDID --------------- */ static void tc358743_delayed_work_enable_hotplug(struct work_struct *work) { … } static void tc358743_set_hdmi_hdcp(struct v4l2_subdev *sd, bool enable) { … } static void tc358743_disable_edid(struct v4l2_subdev *sd) { … } static void tc358743_enable_edid(struct v4l2_subdev *sd) { … } static void tc358743_erase_bksv(struct v4l2_subdev *sd) { … } /* --------------- AVI infoframe --------------- */ static void print_avi_infoframe(struct v4l2_subdev *sd) { … } /* --------------- CTRLS --------------- */ static int tc358743_s_ctrl_detect_tx_5v(struct v4l2_subdev *sd) { … } static int tc358743_s_ctrl_audio_sampling_rate(struct v4l2_subdev *sd) { … } static int tc358743_s_ctrl_audio_present(struct v4l2_subdev *sd) { … } static int tc358743_update_controls(struct v4l2_subdev *sd) { … } /* --------------- INIT --------------- */ static void tc358743_reset_phy(struct v4l2_subdev *sd) { … } static void tc358743_reset(struct v4l2_subdev *sd, uint16_t mask) { … } static inline void tc358743_sleep_mode(struct v4l2_subdev *sd, bool enable) { … } static inline void enable_stream(struct v4l2_subdev *sd, bool enable) { … } static void tc358743_set_pll(struct v4l2_subdev *sd) { … } static void tc358743_set_ref_clk(struct v4l2_subdev *sd) { … } static void tc358743_set_csi_color_space(struct v4l2_subdev *sd) { … } static unsigned tc358743_num_csi_lanes_needed(struct v4l2_subdev *sd) { … } static void tc358743_set_csi(struct v4l2_subdev *sd) { … } static void tc358743_set_hdmi_phy(struct v4l2_subdev *sd) { … } static void tc358743_set_hdmi_audio(struct v4l2_subdev *sd) { … } static void tc358743_set_hdmi_info_frame_mode(struct v4l2_subdev *sd) { … } static void tc358743_initial_setup(struct v4l2_subdev *sd) { … } /* --------------- CEC --------------- */ #ifdef CONFIG_VIDEO_TC358743_CEC static int tc358743_cec_adap_enable(struct cec_adapter *adap, bool enable) { … } static int tc358743_cec_adap_monitor_all_enable(struct cec_adapter *adap, bool enable) { … } static int tc358743_cec_adap_log_addr(struct cec_adapter *adap, u8 log_addr) { … } static int tc358743_cec_adap_transmit(struct cec_adapter *adap, u8 attempts, u32 signal_free_time, struct cec_msg *msg) { … } static const struct cec_adap_ops tc358743_cec_adap_ops = …; static void tc358743_cec_handler(struct v4l2_subdev *sd, u16 intstatus, bool *handled) { … } #endif /* --------------- IRQ --------------- */ static void tc358743_format_change(struct v4l2_subdev *sd) { … } static void tc358743_init_interrupts(struct v4l2_subdev *sd) { … } static void tc358743_enable_interrupts(struct v4l2_subdev *sd, bool cable_connected) { … } static void tc358743_hdmi_audio_int_handler(struct v4l2_subdev *sd, bool *handled) { … } static void tc358743_csi_err_int_handler(struct v4l2_subdev *sd, bool *handled) { … } static void tc358743_hdmi_misc_int_handler(struct v4l2_subdev *sd, bool *handled) { … } static void tc358743_hdmi_cbit_int_handler(struct v4l2_subdev *sd, bool *handled) { … } static void tc358743_hdmi_clk_int_handler(struct v4l2_subdev *sd, bool *handled) { … } static void tc358743_hdmi_sys_int_handler(struct v4l2_subdev *sd, bool *handled) { … } /* --------------- CORE OPS --------------- */ static int tc358743_log_status(struct v4l2_subdev *sd) { … } #ifdef CONFIG_VIDEO_ADV_DEBUG static void tc358743_print_register_map(struct v4l2_subdev *sd) { … } static int tc358743_get_reg_size(u16 address) { … } static int tc358743_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) { … } static int tc358743_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg) { … } #endif static int tc358743_isr(struct v4l2_subdev *sd, u32 status, bool *handled) { … } static irqreturn_t tc358743_irq_handler(int irq, void *dev_id) { … } static void tc358743_irq_poll_timer(struct timer_list *t) { … } static void tc358743_work_i2c_poll(struct work_struct *work) { … } static int tc358743_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh, struct v4l2_event_subscription *sub) { … } /* --------------- VIDEO OPS --------------- */ static int tc358743_g_input_status(struct v4l2_subdev *sd, u32 *status) { … } static int tc358743_s_dv_timings(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_dv_timings *timings) { … } static int tc358743_g_dv_timings(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_dv_timings *timings) { … } static int tc358743_enum_dv_timings(struct v4l2_subdev *sd, struct v4l2_enum_dv_timings *timings) { … } static int tc358743_query_dv_timings(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_dv_timings *timings) { … } static int tc358743_dv_timings_cap(struct v4l2_subdev *sd, struct v4l2_dv_timings_cap *cap) { … } static int tc358743_get_mbus_config(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_mbus_config *cfg) { … } static int tc358743_s_stream(struct v4l2_subdev *sd, int enable) { … } /* --------------- PAD OPS --------------- */ static int tc358743_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { … } static int tc358743_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { … } static int tc358743_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { … } static int tc358743_g_edid(struct v4l2_subdev *sd, struct v4l2_subdev_edid *edid) { … } static int tc358743_s_edid(struct v4l2_subdev *sd, struct v4l2_subdev_edid *edid) { … } /* -------------------------------------------------------------------------- */ static const struct v4l2_subdev_core_ops tc358743_core_ops = …; static const struct v4l2_subdev_video_ops tc358743_video_ops = …; static const struct v4l2_subdev_pad_ops tc358743_pad_ops = …; static const struct v4l2_subdev_ops tc358743_ops = …; /* --------------- CUSTOM CTRLS --------------- */ static const struct v4l2_ctrl_config tc358743_ctrl_audio_sampling_rate = …; static const struct v4l2_ctrl_config tc358743_ctrl_audio_present = …; /* --------------- PROBE / REMOVE --------------- */ #ifdef CONFIG_OF static void tc358743_gpio_reset(struct tc358743_state *state) { … } static int tc358743_probe_of(struct tc358743_state *state) { … } #else static inline int tc358743_probe_of(struct tc358743_state *state) { return -ENODEV; } #endif static int tc358743_probe(struct i2c_client *client) { … } static void tc358743_remove(struct i2c_client *client) { … } static const struct i2c_device_id tc358743_id[] = …; MODULE_DEVICE_TABLE(i2c, tc358743_id); #if IS_ENABLED(CONFIG_OF) static const struct of_device_id tc358743_of_match[] = …; MODULE_DEVICE_TABLE(of, tc358743_of_match); #endif static struct i2c_driver tc358743_driver = …; module_i2c_driver(…) …;
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