src/mainboard/siemens/mc_tcu3/ptn3460.h

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2014 Siemens AG
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #ifndef PTN3460_H_
  17 #define PTN3460_H_
  18
  19 #include <delay.h>
  20 #include "modhwinfo.h"
  21 #include "lcd_panel.h"
  22
  23 #define PTN_SLAVE_ADR           0x20
  24 #define PTN_I2C_CONTROLER       0
  25
  26 #define PTN_EDID_OFF            0x00
  27 #define PTN_EDID_LEN            0x80
  28 #define PTN_CONFIG_OFF          0x80
  29 #define PTN_CONFIG_LEN          0x19
  30 #define PTN_FLASH_CFG_OFF       0xE8
  31 #define PTN_FLASH_CFG_LEN       0x04
  32 #define PTN_MAX_EDID_NUM        6
  33
  34 /* Define some error codes that can be used */
  35 #define PTN_NO_ERROR            0x00000000
  36 #define PTN_BUS_ERROR           0x10000000
  37 #define PTN_INVALID_EDID        0x20000000
  38
  39 struct ptn_3460_config{
  40         u8      dp_interface_ctrl;      /* DiplayPort interface control */
  41         u8      lvds_interface_ctrl1;   /* LVDS interface control register 1 */
  42         u8      lvds_interface_ctrl2;   /* LVDS interface control register 2 */
  43         u8      lvds_interface_ctrl3;   /* LVDS interface control register 3 */
  44         u8      edid_rom_emulation;     /* select which EDID-block is emulated */
  45         u8      edid_rom_access_ctrl;   /* select which EDID block to map to 0..0x7F */
  46         u8      pwm_min[3];             /* smallest PWM frequency for back light */
  47         u8      pwm_max[3];             /* biggest PWM frequency for back light */
  48         u8      fast_link_ctrl;         /* Fast link training control register */
  49         u8      pin_cfg_ctrl1;          /* Pin configuration control register 1 */
  50         u8      pin_cfg_ctrl2;          /* Pin configuration control register 2 */
  51         u8      pwm_default;            /* Default PWM bit count in DPCD register */
  52         u16     pwm_value;              /* Current PWM bit count in DPCD register */
  53         u8      pwm_default_freq;       /* Default PWM frequency in DPCD register */
  54         u8      t3_timing;              /* Panel T3 timing value */
  55         u8      t12_timing;             /* Panel T12 timing value */
  56         u8      backlight_ctrl;         /* Back light control register */
  57         u8      t2_delay;               /* Panel T2 delay */
  58         u8      t4_timing;              /* Panel T4 timing value */
  59         u8      t5_delay;               /* Panel T5 delay */
  60 }__attribute__((packed));
  61
  62 struct ptn_3460_flash{
  63         u8      cmd;                    /* Flash command (erase or erase and flash) */
  64         u16     magic;                  /* Magic number needed by the flash algorithm */
  65         u8      trigger;                /* Trigger for starting flash operation */
  66 }__attribute__((packed));
  67
  68
  69 int ptn3460_init(char lcd_type, struct edidinfo *eib, struct shortinfo *sib);
  70 int ptn3460_read_edid(u8 edid_num, u8 *data);
  71 int ptn3460_write_edid(u8 edid_num, u8 *data);
  72 int ptn_select_edid(u8 edid_num);
  73 int ptn3460_flash_config(void);
  74 #endif /* PTN3460_H_ */