drivers/video/exynos/exynos_dp_lowlevel.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (C) 2012 Samsung Electronics
   4  *
   5  * Author: Donghwa Lee <dh09.lee@samsung.com>
   6  */
   7
   8 #ifndef _EXYNOS_EDP_LOWLEVEL_H
   9 #define _EXYNOS_EDP_LOWLEVEL_H
  10
  11 void exynos_dp_enable_video_bist(struct exynos_dp *dp_regs,
  12                                  unsigned int enable);
  13 void exynos_dp_enable_video_mute(struct exynos_dp *dp_regs,
  14                                  unsigned int enable);
  15 void exynos_dp_reset(struct exynos_dp *dp_regs);
  16 void exynos_dp_enable_sw_func(struct exynos_dp *dp_regs, unsigned int enable);
  17 unsigned int exynos_dp_set_analog_power_down(struct exynos_dp *dp_regs,
  18                                              unsigned int block, u32 enable);
  19 unsigned int exynos_dp_get_pll_lock_status(struct exynos_dp *dp_regs);
  20 int exynos_dp_init_analog_func(struct exynos_dp *dp_regs);
  21 void exynos_dp_init_hpd(struct exynos_dp *dp_regs);
  22 void exynos_dp_init_aux(struct exynos_dp *dp_regs);
  23 void exynos_dp_config_interrupt(struct exynos_dp *dp_regs);
  24 unsigned int exynos_dp_get_plug_in_status(struct exynos_dp *dp_regs);
  25 unsigned int exynos_dp_detect_hpd(struct exynos_dp *dp_regs);
  26 unsigned int exynos_dp_start_aux_transaction(struct exynos_dp *dp_regs);
  27 unsigned int exynos_dp_write_byte_to_dpcd(struct exynos_dp *dp_regs,
  28                                           unsigned int reg_addr,
  29                                           unsigned char data);
  30 unsigned int exynos_dp_read_byte_from_dpcd(struct exynos_dp *dp_regs,
  31                                            unsigned int reg_addr,
  32                                            unsigned char *data);
  33 unsigned int exynos_dp_write_bytes_to_dpcd(struct exynos_dp *dp_regs,
  34                                            unsigned int reg_addr,
  35                                            unsigned int count,
  36                                            unsigned char data[]);
  37 unsigned int exynos_dp_read_bytes_from_dpcd(struct exynos_dp *dp_regs,
  38                                             unsigned int reg_addr,
  39                                             unsigned int count,
  40                                             unsigned char data[]);
  41 int exynos_dp_select_i2c_device(struct exynos_dp *dp_regs,
  42                                 unsigned int device_addr,
  43                                 unsigned int reg_addr);
  44 int exynos_dp_read_byte_from_i2c(struct exynos_dp *dp_regs,
  45                                  unsigned int device_addr,
  46                                  unsigned int reg_addr, unsigned int *data);
  47 int exynos_dp_read_bytes_from_i2c(struct exynos_dp *dp_regs,
  48                                   unsigned int device_addr,
  49                                   unsigned int reg_addr, unsigned int count,
  50                                   unsigned char edid[]);
  51 void exynos_dp_reset_macro(struct exynos_dp *dp_regs);
  52 void exynos_dp_set_link_bandwidth(struct exynos_dp *dp_regs,
  53                                   unsigned char bwtype);
  54 unsigned char exynos_dp_get_link_bandwidth(struct exynos_dp *dp_regs);
  55 void exynos_dp_set_lane_count(struct exynos_dp *dp_regs, unsigned char count);
  56 unsigned int exynos_dp_get_lane_count(struct exynos_dp *dp_regs);
  57 unsigned char exynos_dp_get_lanex_pre_emphasis(struct exynos_dp *dp_regs,
  58                                                unsigned char lanecnt);
  59 void exynos_dp_set_lane_pre_emphasis(struct exynos_dp *dp_regs,
  60                                      unsigned int level, unsigned char lanecnt);
  61 void exynos_dp_set_lanex_pre_emphasis(struct exynos_dp *dp_regs,
  62                                       unsigned char request_val,
  63                                       unsigned char lanecnt);
  64 void exynos_dp_set_training_pattern(struct exynos_dp *dp_regs,
  65                                     unsigned int pattern);
  66 void exynos_dp_enable_enhanced_mode(struct exynos_dp *dp_regs,
  67                                     unsigned char enable);
  68 void exynos_dp_enable_scrambling(struct exynos_dp *dp_regs,
  69                                  unsigned int enable);
  70 int exynos_dp_init_video(struct exynos_dp *dp_regs);
  71 void exynos_dp_config_video_slave_mode(struct exynos_dp *dp_regs,
  72                                        struct edp_video_info *video_info);
  73 void exynos_dp_set_video_color_format(struct exynos_dp *dp_regs,
  74                                       struct edp_video_info *video_info);
  75 int exynos_dp_config_video_bist(struct exynos_dp *dp_regs,
  76                                 struct exynos_dp_priv *priv);
  77 unsigned int exynos_dp_is_slave_video_stream_clock_on(
  78                                         struct exynos_dp *dp_regs);
  79 void exynos_dp_set_video_cr_mn(struct exynos_dp *dp_regs, unsigned int type,
  80                                unsigned int m_value, unsigned int n_value);
  81 void exynos_dp_set_video_timing_mode(struct exynos_dp *dp_regs,
  82                                      unsigned int type);
  83 void exynos_dp_enable_video_master(struct exynos_dp *dp_regs,
  84                                    unsigned int enable);
  85 void exynos_dp_start_video(struct exynos_dp *dp_regs);
  86 unsigned int exynos_dp_is_video_stream_on(struct exynos_dp *dp_regs);
  87
  88 #endif /* _EXYNOS_DP_LOWLEVEL_H */