/* * Header file for Analogix DP (Display Port) core interface driver. * * Copyright (C) 2012 Samsung Electronics Co., Ltd. * Author: Jingoo Han * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ #ifndef _ANALOGIX_DP_CORE_H #define _ANALOGIX_DP_CORE_H #include #include #define DP_TIMEOUT_LOOP_COUNT 100 #define MAX_CR_LOOP 5 #define MAX_EQ_LOOP 5 /* I2C EDID Chip ID, Slave Address */ #define I2C_EDID_DEVICE_ADDR 0x50 #define I2C_E_EDID_DEVICE_ADDR 0x30 #define EDID_BLOCK_LENGTH 0x80 #define EDID_HEADER_PATTERN 0x00 #define EDID_EXTENSION_FLAG 0x7e #define EDID_CHECKSUM 0x7f /* DP_MAX_LANE_COUNT */ #define DPCD_ENHANCED_FRAME_CAP(x) (((x) >> 7) & 0x1) #define DPCD_MAX_LANE_COUNT(x) ((x) & 0x1f) /* DP_LANE_COUNT_SET */ #define DPCD_LANE_COUNT_SET(x) ((x) & 0x1f) /* DP_TRAINING_LANE0_SET */ #define DPCD_PRE_EMPHASIS_SET(x) (((x) & 0x3) << 3) #define DPCD_PRE_EMPHASIS_GET(x) (((x) >> 3) & 0x3) #define DPCD_VOLTAGE_SWING_SET(x) (((x) & 0x3) << 0) #define DPCD_VOLTAGE_SWING_GET(x) (((x) >> 0) & 0x3) enum link_lane_count_type { LANE_COUNT1 = 1, LANE_COUNT2 = 2, LANE_COUNT4 = 4 }; enum link_training_state { START, CLOCK_RECOVERY, EQUALIZER_TRAINING, FINISHED, FAILED }; enum voltage_swing_level { VOLTAGE_LEVEL_0, VOLTAGE_LEVEL_1, VOLTAGE_LEVEL_2, VOLTAGE_LEVEL_3, }; enum pre_emphasis_level { PRE_EMPHASIS_LEVEL_0, PRE_EMPHASIS_LEVEL_1, PRE_EMPHASIS_LEVEL_2, PRE_EMPHASIS_LEVEL_3, }; enum pattern_set { PRBS7, D10_2, TRAINING_PTN1, TRAINING_PTN2, TRAINING_PTN3, DP_NONE }; enum color_space { COLOR_RGB, COLOR_YCBCR422, COLOR_YCBCR444 }; enum color_depth { COLOR_6, COLOR_8, COLOR_10, COLOR_12 }; enum color_coefficient { COLOR_YCBCR601, COLOR_YCBCR709 }; enum dynamic_range { VESA, CEA }; enum pll_status { PLL_UNLOCKED, PLL_LOCKED }; enum clock_recovery_m_value_type { CALCULATED_M, REGISTER_M }; enum video_timing_recognition_type { VIDEO_TIMING_FROM_CAPTURE, VIDEO_TIMING_FROM_REGISTER }; enum analog_power_block { AUX_BLOCK, CH0_BLOCK, CH1_BLOCK, CH2_BLOCK, CH3_BLOCK, ANALOG_TOTAL, POWER_ALL }; enum dp_irq_type { DP_IRQ_TYPE_HP_CABLE_IN = BIT(0), DP_IRQ_TYPE_HP_CABLE_OUT = BIT(1), DP_IRQ_TYPE_HP_CHANGE = BIT(2), DP_IRQ_TYPE_UNKNOWN = BIT(3), }; struct video_info { char *name; bool h_sync_polarity; bool v_sync_polarity; bool interlaced; enum color_space color_space; enum dynamic_range dynamic_range; enum color_coefficient ycbcr_coeff; enum color_depth color_depth; int max_link_rate; enum link_lane_count_type max_lane_count; }; struct link_train { int eq_loop; int cr_loop[4]; u8 link_rate; u8 lane_count; u8 training_lane[4]; enum link_training_state lt_state; }; struct analogix_dp_device { struct drm_encoder *encoder; struct device *dev; struct drm_device *drm_dev; struct drm_connector connector; struct drm_bridge *bridge; struct clk *clock; unsigned int irq; void __iomem *reg_base; struct video_info video_info; struct link_train link_train; struct phy *phy; int dpms_mode; int hpd_gpio; bool force_hpd; unsigned char edid[EDID_BLOCK_LENGTH * 2]; struct analogix_dp_plat_data *plat_data; }; /* analogix_dp_reg.c */ void analogix_dp_enable_video_mute(struct analogix_dp_device *dp, bool enable); void analogix_dp_stop_video(struct analogix_dp_device *dp); void analogix_dp_lane_swap(struct analogix_dp_device *dp, bool enable); void analogix_dp_init_analog_param(struct analogix_dp_device *dp); void analogix_dp_init_interrupt(struct analogix_dp_device *dp); void analogix_dp_reset(struct analogix_dp_device *dp); void analogix_dp_swreset(struct analogix_dp_device *dp); void analogix_dp_config_interrupt(struct analogix_dp_device *dp); void analogix_dp_mute_hpd_interrupt(struct analogix_dp_device *dp); void analogix_dp_unmute_hpd_interrupt(struct analogix_dp_device *dp); enum pll_status analogix_dp_get_pll_lock_status(struct analogix_dp_device *dp); void analogix_dp_set_pll_power_down(struct analogix_dp_device *dp, bool enable); void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp, enum analog_power_block block, bool enable); void analogix_dp_init_analog_func(struct analogix_dp_device *dp); void analogix_dp_init_hpd(struct analogix_dp_device *dp); void analogix_dp_force_hpd(struct analogix_dp_device *dp); enum dp_irq_type analogix_dp_get_irq_type(struct analogix_dp_device *dp); void analogix_dp_clear_hotplug_interrupts(struct analogix_dp_device *dp); void analogix_dp_reset_aux(struct analogix_dp_device *dp); void analogix_dp_init_aux(struct analogix_dp_device *dp); int analogix_dp_get_plug_in_status(struct analogix_dp_device *dp); void analogix_dp_enable_sw_function(struct analogix_dp_device *dp); int analogix_dp_start_aux_transaction(struct analogix_dp_device *dp); int analogix_dp_write_byte_to_dpcd(struct analogix_dp_device *dp, unsigned int reg_addr, unsigned char data); int analogix_dp_read_byte_from_dpcd(struct analogix_dp_device *dp, unsigned int reg_addr, unsigned char *data); int analogix_dp_write_bytes_to_dpcd(struct analogix_dp_device *dp, unsigned int reg_addr, unsigned int count, unsigned char data[]); int analogix_dp_read_bytes_from_dpcd(struct analogix_dp_device *dp, unsigned int reg_addr, unsigned int count, unsigned char data[]); int analogix_dp_select_i2c_device(struct analogix_dp_device *dp, unsigned int device_addr, unsigned int reg_addr); int analogix_dp_read_byte_from_i2c(struct analogix_dp_device *dp, unsigned int device_addr, unsigned int reg_addr, unsigned int *data); int analogix_dp_read_bytes_from_i2c(struct analogix_dp_device *dp, unsigned int device_addr, unsigned int reg_addr, unsigned int count, unsigned char edid[]); void analogix_dp_set_link_bandwidth(struct analogix_dp_device *dp, u32 bwtype); void analogix_dp_get_link_bandwidth(struct analogix_dp_device *dp, u32 *bwtype); void analogix_dp_set_lane_count(struct analogix_dp_device *dp, u32 count); void analogix_dp_get_lane_count(struct analogix_dp_device *dp, u32 *count); void analogix_dp_enable_enhanced_mode(struct analogix_dp_device *dp, bool enable); void analogix_dp_set_training_pattern(struct analogix_dp_device *dp, enum pattern_set pattern); void analogix_dp_set_lane0_pre_emphasis(struct analogix_dp_device *dp, u32 level); void analogix_dp_set_lane1_pre_emphasis(struct analogix_dp_device *dp, u32 level); void analogix_dp_set_lane2_pre_emphasis(struct analogix_dp_device *dp, u32 level); void analogix_dp_set_lane3_pre_emphasis(struct analogix_dp_device *dp, u32 level); void analogix_dp_set_lane0_link_training(struct analogix_dp_device *dp, u32 training_lane); void analogix_dp_set_lane1_link_training(struct analogix_dp_device *dp, u32 training_lane); void analogix_dp_set_lane2_link_training(struct analogix_dp_device *dp, u32 training_lane); void analogix_dp_set_lane3_link_training(struct analogix_dp_device *dp, u32 training_lane); u32 analogix_dp_get_lane0_link_training(struct analogix_dp_device *dp); u32 analogix_dp_get_lane1_link_training(struct analogix_dp_device *dp); u32 analogix_dp_get_lane2_link_training(struct analogix_dp_device *dp); u32 analogix_dp_get_lane3_link_training(struct analogix_dp_device *dp); void analogix_dp_reset_macro(struct analogix_dp_device *dp); void analogix_dp_init_video(struct analogix_dp_device *dp); void analogix_dp_set_video_color_format(struct analogix_dp_device *dp); int analogix_dp_is_slave_video_stream_clock_on(struct analogix_dp_device *dp); void analogix_dp_set_video_cr_mn(struct analogix_dp_device *dp, enum clock_recovery_m_value_type type, u32 m_value, u32 n_value); void analogix_dp_set_video_timing_mode(struct analogix_dp_device *dp, u32 type); void analogix_dp_enable_video_master(struct analogix_dp_device *dp, bool enable); void analogix_dp_start_video(struct analogix_dp_device *dp); int analogix_dp_is_video_stream_on(struct analogix_dp_device *dp); void analogix_dp_config_video_slave_mode(struct analogix_dp_device *dp); void analogix_dp_enable_scrambling(struct analogix_dp_device *dp); void analogix_dp_disable_scrambling(struct analogix_dp_device *dp); #endif /* _ANALOGIX_DP_CORE_H */