// SPDX-License-Identifier: GPL-2.0-only /* * adv7842 - Analog Devices ADV7842 video decoder driver * * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved. */ /* * References (c = chapter, p = page): * REF_01 - Analog devices, ADV7842, * Register Settings Recommendations, Rev. 1.9, April 2011 * REF_02 - Analog devices, Software User Guide, UG-206, * ADV7842 I2C Register Maps, Rev. 0, November 2010 * REF_03 - Analog devices, Hardware User Guide, UG-214, * ADV7842 Fast Switching 2:1 HDMI 1.4 Receiver with 3D-Comb * Decoder and Digitizer , Rev. 0, January 2011 */ #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/v4l2-dv-timings.h> #include <linux/hdmi.h> #include <media/cec.h> #include <media/v4l2-device.h> #include <media/v4l2-event.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-dv-timings.h> #include <media/i2c/adv7842.h> static int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; /* ADV7842 system clock frequency */ #define ADV7842_fsc … #define ADV7842_RGB_OUT … #define ADV7842_OP_FORMAT_SEL_8BIT … #define ADV7842_OP_FORMAT_SEL_10BIT … #define ADV7842_OP_FORMAT_SEL_12BIT … #define ADV7842_OP_MODE_SEL_SDR_422 … #define ADV7842_OP_MODE_SEL_DDR_422 … #define ADV7842_OP_MODE_SEL_SDR_444 … #define ADV7842_OP_MODE_SEL_DDR_444 … #define ADV7842_OP_MODE_SEL_SDR_422_2X … #define ADV7842_OP_MODE_SEL_ADI_CM … #define ADV7842_OP_CH_SEL_GBR … #define ADV7842_OP_CH_SEL_GRB … #define ADV7842_OP_CH_SEL_BGR … #define ADV7842_OP_CH_SEL_RGB … #define ADV7842_OP_CH_SEL_BRG … #define ADV7842_OP_CH_SEL_RBG … #define ADV7842_OP_SWAP_CB_CR … #define ADV7842_MAX_ADDRS … /* ********************************************************************** * * Arrays with configuration parameters for the ADV7842 * ********************************************************************** */ struct adv7842_format_info { … }; struct adv7842_state { … }; /* Unsupported timings. This device cannot support 720p30. */ static const struct v4l2_dv_timings adv7842_timings_exceptions[] = …; static bool adv7842_check_dv_timings(const struct v4l2_dv_timings *t, void *hdl) { … } struct adv7842_video_standards { … }; /* sorted by number of lines */ static const struct adv7842_video_standards adv7842_prim_mode_comp[] = …; /* sorted by number of lines */ static const struct adv7842_video_standards adv7842_prim_mode_gr[] = …; /* sorted by number of lines */ static const struct adv7842_video_standards adv7842_prim_mode_hdmi_comp[] = …; /* sorted by number of lines */ static const struct adv7842_video_standards adv7842_prim_mode_hdmi_gr[] = …; static const struct v4l2_event adv7842_ev_fmt = …; /* ----------------------------------------------------------------------- */ static inline struct adv7842_state *to_state(struct v4l2_subdev *sd) { … } static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) { … } static inline unsigned htotal(const struct v4l2_bt_timings *t) { … } static inline unsigned vtotal(const struct v4l2_bt_timings *t) { … } /* ----------------------------------------------------------------------- */ 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 s32 adv_smbus_write_byte_data(struct i2c_client *client, u8 command, u8 value) { … } static void adv_smbus_write_byte_no_check(struct i2c_client *client, u8 command, u8 value) { … } /* ----------------------------------------------------------------------- */ static inline int io_read(struct v4l2_subdev *sd, u8 reg) { … } static inline int io_write(struct v4l2_subdev *sd, u8 reg, u8 val) { … } static inline int io_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) { … } static inline int io_write_clr_set(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) { … } static inline int avlink_read(struct v4l2_subdev *sd, u8 reg) { … } static inline int avlink_write(struct v4l2_subdev *sd, u8 reg, u8 val) { … } static inline int cec_read(struct v4l2_subdev *sd, u8 reg) { … } static inline int cec_write(struct v4l2_subdev *sd, u8 reg, u8 val) { … } static inline int cec_write_clr_set(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) { … } static inline int infoframe_read(struct v4l2_subdev *sd, u8 reg) { … } static inline int infoframe_write(struct v4l2_subdev *sd, u8 reg, u8 val) { … } static inline int sdp_io_read(struct v4l2_subdev *sd, u8 reg) { … } static inline int sdp_io_write(struct v4l2_subdev *sd, u8 reg, u8 val) { … } static inline int sdp_io_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) { … } static inline int sdp_read(struct v4l2_subdev *sd, u8 reg) { … } static inline int sdp_write(struct v4l2_subdev *sd, u8 reg, u8 val) { … } static inline int sdp_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) { … } static inline int afe_read(struct v4l2_subdev *sd, u8 reg) { … } static inline int afe_write(struct v4l2_subdev *sd, u8 reg, u8 val) { … } static inline int afe_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) { … } static inline int rep_read(struct v4l2_subdev *sd, u8 reg) { … } static inline int rep_write(struct v4l2_subdev *sd, u8 reg, u8 val) { … } static inline int rep_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) { … } static inline int edid_read(struct v4l2_subdev *sd, u8 reg) { … } static inline int edid_write(struct v4l2_subdev *sd, u8 reg, u8 val) { … } static inline int hdmi_read(struct v4l2_subdev *sd, u8 reg) { … } static inline int hdmi_write(struct v4l2_subdev *sd, u8 reg, u8 val) { … } static inline int hdmi_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) { … } static inline int cp_read(struct v4l2_subdev *sd, u8 reg) { … } static inline int cp_write(struct v4l2_subdev *sd, u8 reg, u8 val) { … } static inline int cp_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val) { … } static inline int vdp_read(struct v4l2_subdev *sd, u8 reg) { … } static inline int vdp_write(struct v4l2_subdev *sd, u8 reg, u8 val) { … } static void main_reset(struct v4l2_subdev *sd) { … } /* ----------------------------------------------------------------------------- * Format helpers */ static const struct adv7842_format_info adv7842_formats[] = …; static const struct adv7842_format_info * adv7842_format_info(struct adv7842_state *state, u32 code) { … } /* ----------------------------------------------------------------------- */ static inline bool is_analog_input(struct v4l2_subdev *sd) { … } static inline bool is_digital_input(struct v4l2_subdev *sd) { … } static const struct v4l2_dv_timings_cap adv7842_timings_cap_analog = …; static const struct v4l2_dv_timings_cap adv7842_timings_cap_digital = …; static inline const struct v4l2_dv_timings_cap * adv7842_get_dv_timings_cap(struct v4l2_subdev *sd) { … } /* ----------------------------------------------------------------------- */ static u16 adv7842_read_cable_det(struct v4l2_subdev *sd) { … } static void adv7842_delayed_work_enable_hotplug(struct work_struct *work) { … } static int edid_write_vga_segment(struct v4l2_subdev *sd) { … } static int edid_write_hdmi_segment(struct v4l2_subdev *sd, u8 port) { … } /* ----------------------------------------------------------------------- */ #ifdef CONFIG_VIDEO_ADV_DEBUG static void adv7842_inv_register(struct v4l2_subdev *sd) { … } static int adv7842_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) { … } static int adv7842_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg) { … } #endif static int adv7842_s_detect_tx_5v_ctrl(struct v4l2_subdev *sd) { … } static int find_and_set_predefined_video_timings(struct v4l2_subdev *sd, u8 prim_mode, const struct adv7842_video_standards *predef_vid_timings, const struct v4l2_dv_timings *timings) { … } static int configure_predefined_video_timings(struct v4l2_subdev *sd, struct v4l2_dv_timings *timings) { … } static void configure_custom_video_timings(struct v4l2_subdev *sd, const struct v4l2_bt_timings *bt) { … } static void adv7842_set_offset(struct v4l2_subdev *sd, bool auto_offset, u16 offset_a, u16 offset_b, u16 offset_c) { … } static void adv7842_set_gain(struct v4l2_subdev *sd, bool auto_gain, u16 gain_a, u16 gain_b, u16 gain_c) { … } static void set_rgb_quantization_range(struct v4l2_subdev *sd) { … } static int adv7842_s_ctrl(struct v4l2_ctrl *ctrl) { … } static int adv7842_g_volatile_ctrl(struct v4l2_ctrl *ctrl) { … } static inline bool no_power(struct v4l2_subdev *sd) { … } static inline bool no_cp_signal(struct v4l2_subdev *sd) { … } static inline bool is_hdmi(struct v4l2_subdev *sd) { … } static int adv7842_g_input_status(struct v4l2_subdev *sd, u32 *status) { … } struct stdi_readback { … }; static int stdi2dv_timings(struct v4l2_subdev *sd, struct stdi_readback *stdi, struct v4l2_dv_timings *timings) { … } static int read_stdi(struct v4l2_subdev *sd, struct stdi_readback *stdi) { … } static int adv7842_enum_dv_timings(struct v4l2_subdev *sd, struct v4l2_enum_dv_timings *timings) { … } static int adv7842_dv_timings_cap(struct v4l2_subdev *sd, struct v4l2_dv_timings_cap *cap) { … } /* Fill the optional fields .standards and .flags in struct v4l2_dv_timings if the format is listed in adv7842_timings[] */ static void adv7842_fill_optional_dv_timings_fields(struct v4l2_subdev *sd, struct v4l2_dv_timings *timings) { … } static int adv7842_query_dv_timings(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_dv_timings *timings) { … } static int adv7842_s_dv_timings(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_dv_timings *timings) { … } static int adv7842_g_dv_timings(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_dv_timings *timings) { … } static void enable_input(struct v4l2_subdev *sd) { … } static void disable_input(struct v4l2_subdev *sd) { … } static void sdp_csc_coeff(struct v4l2_subdev *sd, const struct adv7842_sdp_csc_coeff *c) { … } static void select_input(struct v4l2_subdev *sd, enum adv7842_vid_std_select vid_std_select) { … } static int adv7842_s_routing(struct v4l2_subdev *sd, u32 input, u32 output, u32 config) { … } static int adv7842_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { … } static void adv7842_fill_format(struct adv7842_state *state, struct v4l2_mbus_framefmt *format) { … } /* * Compute the op_ch_sel value required to obtain on the bus the component order * corresponding to the selected format taking into account bus reordering * applied by the board at the output of the device. * * The following table gives the op_ch_value from the format component order * (expressed as op_ch_sel value in column) and the bus reordering (expressed as * adv7842_bus_order value in row). * * | GBR(0) GRB(1) BGR(2) RGB(3) BRG(4) RBG(5) * ----------+------------------------------------------------- * RGB (NOP) | GBR GRB BGR RGB BRG RBG * GRB (1-2) | BGR RGB GBR GRB RBG BRG * RBG (2-3) | GRB GBR BRG RBG BGR RGB * BGR (1-3) | RBG BRG RGB BGR GRB GBR * BRG (ROR) | BRG RBG GRB GBR RGB BGR * GBR (ROL) | RGB BGR RBG BRG GBR GRB */ static unsigned int adv7842_op_ch_sel(struct adv7842_state *state) { … } static void adv7842_setup_format(struct adv7842_state *state) { … } static int adv7842_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { … } static int adv7842_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { … } static void adv7842_irq_enable(struct v4l2_subdev *sd, bool enable) { … } #if IS_ENABLED(CONFIG_VIDEO_ADV7842_CEC) static void adv7842_cec_tx_raw_status(struct v4l2_subdev *sd, u8 tx_raw_status) { … } static void adv7842_cec_isr(struct v4l2_subdev *sd, bool *handled) { … } static int adv7842_cec_adap_enable(struct cec_adapter *adap, bool enable) { … } static int adv7842_cec_adap_log_addr(struct cec_adapter *adap, u8 addr) { … } static int adv7842_cec_adap_transmit(struct cec_adapter *adap, u8 attempts, u32 signal_free_time, struct cec_msg *msg) { … } static const struct cec_adap_ops adv7842_cec_adap_ops = …; #endif static int adv7842_isr(struct v4l2_subdev *sd, u32 status, bool *handled) { … } static int adv7842_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) { … } /* * If the VGA_EDID_ENABLE bit is set (Repeater Map 0x7f, bit 7), then * the first two blocks of the EDID are for the HDMI, and the first block * of segment 1 (i.e. the third block of the EDID) is for VGA. * So if a VGA EDID is installed, then the maximum size of the HDMI EDID * is 2 blocks. */ static int adv7842_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *e) { … } struct adv7842_cfg_read_infoframe { … }; static void log_infoframe(struct v4l2_subdev *sd, const struct adv7842_cfg_read_infoframe *cri) { … } static void adv7842_log_infoframes(struct v4l2_subdev *sd) { … } #if 0 /* Let's keep it here for now, as it could be useful for debug */ static const char * const prim_mode_txt[] = { "SDP", "Component", "Graphics", "Reserved", "CVBS & HDMI AUDIO", "HDMI-Comp", "HDMI-GR", "Reserved", "Reserved", "Reserved", "Reserved", "Reserved", "Reserved", "Reserved", "Reserved", "Reserved", }; #endif static int adv7842_sdp_log_status(struct v4l2_subdev *sd) { … } static int adv7842_cp_log_status(struct v4l2_subdev *sd) { … } static int adv7842_log_status(struct v4l2_subdev *sd) { … } static int adv7842_querystd(struct v4l2_subdev *sd, v4l2_std_id *std) { … } static void adv7842_s_sdp_io(struct v4l2_subdev *sd, struct adv7842_sdp_io_sync_adjustment *s) { … } static int adv7842_s_std(struct v4l2_subdev *sd, v4l2_std_id norm) { … } static int adv7842_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm) { … } /* ----------------------------------------------------------------------- */ static int adv7842_core_init(struct v4l2_subdev *sd) { … } /* ----------------------------------------------------------------------- */ static int adv7842_ddr_ram_test(struct v4l2_subdev *sd) { … } static void adv7842_rewrite_i2c_addresses(struct v4l2_subdev *sd, struct adv7842_platform_data *pdata) { … } static int adv7842_command_ram_test(struct v4l2_subdev *sd) { … } static long adv7842_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) { … } static int adv7842_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh, struct v4l2_event_subscription *sub) { … } static int adv7842_registered(struct v4l2_subdev *sd) { … } static void adv7842_unregistered(struct v4l2_subdev *sd) { … } /* ----------------------------------------------------------------------- */ static const struct v4l2_ctrl_ops adv7842_ctrl_ops = …; static const struct v4l2_subdev_core_ops adv7842_core_ops = …; static const struct v4l2_subdev_video_ops adv7842_video_ops = …; static const struct v4l2_subdev_pad_ops adv7842_pad_ops = …; static const struct v4l2_subdev_ops adv7842_ops = …; static const struct v4l2_subdev_internal_ops adv7842_int_ops = …; /* -------------------------- custom ctrls ---------------------------------- */ static const struct v4l2_ctrl_config adv7842_ctrl_analog_sampling_phase = …; static const struct v4l2_ctrl_config adv7842_ctrl_free_run_color_manual = …; static const struct v4l2_ctrl_config adv7842_ctrl_free_run_color = …; static void adv7842_unregister_clients(struct v4l2_subdev *sd) { … } static struct i2c_client *adv7842_dummy_client(struct v4l2_subdev *sd, const char *desc, u8 addr, u8 io_reg) { … } static int adv7842_register_clients(struct v4l2_subdev *sd) { … } static int adv7842_probe(struct i2c_client *client) { … } /* ----------------------------------------------------------------------- */ static void adv7842_remove(struct i2c_client *client) { … } /* ----------------------------------------------------------------------- */ static const struct i2c_device_id adv7842_id[] = …; MODULE_DEVICE_TABLE(i2c, adv7842_id); /* ----------------------------------------------------------------------- */ static struct i2c_driver adv7842_driver = …; module_i2c_driver(…) …;
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