arch/arm/include/asm/arch-tiger/tiger_lcd.h

   1 /* drivers/video/sc8810/sc8810_lcd.h
   2  *
   3  * Spreadtrum LCD abstraction
   4  *
   5  * Copyright (C) 2010 Spreadtrum.com
   6  *
   7  * This software is licensed under the terms of the GNU General Public
   8  * License version 2, as published by the Free Software Foundation, and
   9  * may be copied, distributed, and modified under those terms.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 #ifndef _TIGER_LCD_H_
  18 #define _TIGER_LCD_H_
  19
  20 #include <linux/types.h>
  21 #include <common.h>
  22
  23 #define LCD_DelayMS(ms)  udelay(1000*(ms))
  24
  25 /* LCD mode */
  26 #define SPRDFB_I2C_WRITE_DELAY 0xffff
  27
  28
  29 /* LCD mode */
  30 #define LCD_MODE_MCU                    0
  31 #define LCD_MODE_RGB                    1
  32 #define LCD_MODE_DSI                    2
  33
  34 /* bus mode */
  35 #define LCD_BUS_8080                    0
  36 #define LCD_BUS_6800                    1
  37 #define LCD_BUS_SPI                     2
  38
  39 /* lcd directions */
  40 #define LCD_DIRECT_NORMAL               0
  41 #define LCD_DIRECT_ROT_90               1
  42 #define LCD_DIRECT_ROT_180              2
  43 #define LCD_DIRECT_ROT_270              3
  44 #define LCD_DIRECT_MIR_H                4
  45 #define LCD_DIRECT_MIR_V                5
  46 #define LCD_DIRECT_MIR_HV               6
  47
  48 #define PIN_PWM0_MOD_VALUE 0x20
  49
  50 #define SPRD_PWM_BASE                   0x88000000
  51 #define SPRD_PWM_REG(off)               (SPRD_PWM_BASE + (off))
  52 #define SPRD_PWM0_PRESCALE      SPRD_PWM_REG(0x0000)
  53 #define SPRD_PWM0_CNT                   SPRD_PWM_REG(0x0004)
  54 #define SPRD_PWM0_TONE_DIV      SPRD_PWM_REG(0x0008)
  55 #define SPRD_PWM0_PAT_LOW       SPRD_PWM_REG(0x000C)
  56 #define SPRD_PWM0_PAT_HIG       SPRD_PWM_REG(0x0010)
  57
  58 #define LCD_PWM_PRESCALE_VALUE  0x01
  59 #define LCD_PWM_MOD_VALUE               0xFF
  60 #define PWM_REG_MSK_VALUE                       0xFFFF
  61
  62 #define LCD_PWM0_EN BIT_8
  63
  64 enum{
  65         SPRDFB_PANEL_TYPE_MCU = 0,
  66         SPRDFB_PANEL_TYPE_RGB,
  67         SPRDFB_PANEL_TYPE_MIPI,
  68         SPRDFB_PANEL_TYPE_LIMIT
  69 };
  70
  71 enum{
  72         SPRDFB_POLARITY_POS = 0,
  73         SPRDFB_POLARITY_NEG,
  74         SPRDFB_POLARITY_LIMIT
  75 };
  76
  77 enum{
  78         SPRDFB_RGB_BUS_TYPE_I2C = 0,
  79         SPRDFB_RGB_BUS_TYPE_SPI,
  80         SPRDFB_RGB_BUG_TYPE_LIMIT
  81 };
  82
  83 enum{
  84         SPRDFB_MIPI_MODE_CMD = 0,
  85         SPRDFB_MIPI_MODE_VIDEO,
  86         SPRDFB_MIPI_MODE_LIMIT
  87 };
  88
  89 struct panel_spec;
  90
  91 typedef int32_t (*send_cmd_t)(uint32_t data);
  92 typedef int32_t (*send_data_t)(uint32_t data);
  93 typedef int32_t (*send_cmd_data_t)(uint32_t cmd, uint32_t data);
  94 typedef uint32_t (*read_data_t)(void);
  95
  96
  97 /* LCD operations */
  98 struct panel_operations {
  99         int32_t (*panel_init)(struct panel_spec *self);
 100         int32_t (*panel_close)(struct panel_spec *self);
 101         int32_t (*panel_reset)(struct panel_spec *self);
 102         int32_t (*panel_enter_sleep)(struct panel_spec *self, uint8_t is_sleep);
 103         int32_t (*panel_set_contrast)(struct panel_spec *self, uint16_t contrast);
 104         int32_t (*panel_set_brightness)(struct panel_spec *self,
 105                                 uint16_t brightness);
 106         int32_t (*panel_set_window)(struct panel_spec *self,
 107                                 uint16_t left, uint16_t top,
 108                                 uint16_t right, uint16_t bottom);
 109         int32_t (*panel_invalidate)(struct panel_spec *self);
 110         int32_t (*panel_invalidate_rect)(struct panel_spec *self,
 111                                 uint16_t left, uint16_t top,
 112                                 uint16_t right, uint16_t bottom);
 113         int32_t (*panel_rotate_invalidate_rect)(struct panel_spec *self,
 114                                 uint16_t left, uint16_t top,
 115                                 uint16_t right, uint16_t bottom,
 116                                 uint16_t angle);
 117         int32_t (*panel_set_direction)(struct panel_spec *self, uint16_t direction);
 118         uint32_t (*panel_readid)(struct panel_spec *self);
 119 };
 120
 121 /* MCU LCD specific properties */
 122 struct timing_mcu {
 123         uint16_t rcss;
 124         uint16_t rlpw;
 125         uint16_t rhpw;
 126         uint16_t wcss;
 127         uint16_t wlpw;
 128         uint16_t whpw;
 129 };
 130
 131 /* RGB LCD specific properties */
 132 struct timing_rgb {
 133         uint16_t hfp;
 134         uint16_t hbp;
 135         uint16_t hsync;
 136         uint16_t vfp;
 137         uint16_t vbp;
 138         uint16_t vsync;
 139 };
 140
 141 struct ops_mcu {
 142         int32_t (*send_cmd)(uint32_t cmd);
 143         int32_t (*send_cmd_data)(uint32_t cmd, uint32_t data);
 144         int32_t (*send_data)(uint32_t data);
 145         uint32_t (*read_data)(void);
 146 };
 147
 148 struct ops_i2c {
 149         int32_t (*i2c_write_8bits)(uint8_t reg, uint8_t val);
 150         int32_t (*i2c_read_8bits)(uint8_t reg, uint8_t *val);
 151         int32_t (*i2c_write_16bits)(uint16_t reg, uint16_t reg_is_8bit, uint16_t val, uint16_t val_is_8bit);
 152         int32_t (*i2c_read_16bits)(uint16_t reg, uint16_t reg_is_8bit, uint16_t *val, uint16_t val_is_8bit);
 153         int32_t (*i2c_write_burst)(uint8_t* buf, int num);
 154 };
 155
 156 struct ops_spi{
 157         int32_t (*spi_send_cmd)(uint32_t cmd);
 158         int32_t (*spi_send_data)(uint32_t cmd, uint32_t data);
 159         int32_t (*spi_read)(uint32_t cmd, uint32_t *data);
 160 };
 161
 162 struct ops_mipi{
 163         int32_t (*mipi_set_cmd_mode)(void);
 164         int32_t (*mipi_set_video_mode)(void);
 165         int32_t (*mipi_gen_write)(uint8_t *param, uint16_t param_length);
 166         int32_t (*mipi_gen_read)(uint8_t *param, uint16_t param_length, uint8_t bytes_to_read, uint8_t *read_buffer);
 167         int32_t (*mipi_dcs_write)(uint8_t *param, uint16_t param_length);
 168         int32_t (*mipi_dcs_read)(uint8_t command, uint8_t bytes_to_read, uint8_t *read_buffer);
 169 };
 170
 171 struct i2c_info{
 172         uint32_t i2c_addr;
 173         struct ops_i2c *ops;
 174 };
 175
 176 struct spi_info{
 177         struct ops_spi *ops;
 178 };
 179
 180
 181 struct info_mipi {
 182         uint16_t work_mode; /*command_mode, video_mode*/
 183         uint16_t video_bus_width;
 184         uint32_t lan_number;
 185         uint32_t phy_feq;
 186         uint16_t h_sync_pol;
 187         uint16_t v_sync_pol;
 188         uint16_t de_pol;
 189         uint16_t te_pol; /*only for command_mode*/
 190         uint16_t color_mode_pol;
 191         uint16_t shut_down_pol;
 192         struct timing_rgb *timing;
 193         struct ops_mipi *ops;
 194 };
 195
 196 struct info_rgb {
 197         uint16_t cmd_bus_mode; /*spi, i2c*/
 198         uint16_t video_bus_width;
 199         uint16_t h_sync_pol;
 200         uint16_t v_sync_pol;
 201         uint16_t de_pol;
 202         struct timing_rgb *timing;
 203         union{
 204                 struct i2c_info *i2c;
 205                 struct spi_info *spi;
 206         }bus_info;
 207 };
 208
 209 struct info_mcu {
 210         uint16_t bus_mode; /*8080, 6800*/
 211         uint16_t bus_width;
 212         uint16_t bpp;
 213         uint16_t te_pol;
 214         uint32_t te_sync_delay;
 215         struct timing_mcu *timing;
 216         struct ops_mcu *ops;
 217 };
 218
 219
 220 /* LCD abstraction */
 221 struct panel_spec {
 222         uint16_t width;
 223         uint16_t height;
 224         uint32_t fps;
 225         uint16_t type; /*mcu, rgb, mipi*/
 226         uint16_t direction;
 227         union {
 228                 struct info_mcu *mcu;
 229                 struct info_rgb *rgb;
 230                 struct info_mipi * mipi;
 231         } info;
 232         struct panel_operations *ops;
 233 };
 234
 235 struct panel_cfg {
 236         uint32_t lcd_id;
 237         struct panel_spec *panel;
 238 };
 239
 240 extern void LCD_SetBackLightBrightness( unsigned long  value);
 241 #endif
 242