include/video/w100fb.h

   1 /*
   2  *  Support for the w100 frame buffer.
   3  *
   4  *  Copyright (c) 2004-2005 Richard Purdie
   5  *  Copyright (c) 2005 Ian Molton
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  */
  11
  12 #define W100_GPIO_PORT_A        0
  13 #define W100_GPIO_PORT_B        1
  14
  15 #define CLK_SRC_XTAL  0
  16 #define CLK_SRC_PLL   1
  17
  18 struct w100fb_par;
  19
  20 unsigned long w100fb_gpio_read(int port);
  21 void w100fb_gpio_write(int port, unsigned long value);
  22 unsigned long w100fb_gpcntl_read(int port);
  23 void w100fb_gpcntl_write(int port, unsigned long value);
  24 unsigned long w100fb_get_hsynclen(struct device *dev);
  25
  26 /* LCD Specific Routines and Config */
  27 struct w100_tg_info {
  28         void (*change)(struct w100fb_par*);
  29         void (*suspend)(struct w100fb_par*);
  30         void (*resume)(struct w100fb_par*);
  31 };
  32
  33 /* General Platform Specific w100 Register Values */
  34 struct w100_gen_regs {
  35         unsigned long lcd_format;
  36         unsigned long lcdd_cntl1;
  37         unsigned long lcdd_cntl2;
  38         unsigned long genlcd_cntl1;
  39         unsigned long genlcd_cntl2;
  40         unsigned long genlcd_cntl3;
  41 };
  42
  43 struct w100_gpio_regs {
  44         unsigned long init_data1;
  45         unsigned long init_data2;
  46         unsigned long gpio_dir1;
  47         unsigned long gpio_oe1;
  48         unsigned long gpio_dir2;
  49         unsigned long gpio_oe2;
  50 };
  51
  52 /* Optional External Memory Configuration */
  53 struct w100_mem_info {
  54         unsigned long ext_cntl;
  55         unsigned long sdram_mode_reg;
  56         unsigned long ext_timing_cntl;
  57         unsigned long io_cntl;
  58         unsigned int size;
  59 };
  60
  61 struct w100_bm_mem_info {
  62         unsigned long ext_mem_bw;
  63         unsigned long offset;
  64         unsigned long ext_timing_ctl;
  65         unsigned long ext_cntl;
  66         unsigned long mode_reg;
  67         unsigned long io_cntl;
  68         unsigned long config;
  69 };
  70
  71 /* LCD Mode definition */
  72 struct w100_mode {
  73         unsigned int xres;
  74         unsigned int yres;
  75         unsigned short left_margin;
  76         unsigned short right_margin;
  77         unsigned short upper_margin;
  78         unsigned short lower_margin;
  79         unsigned long crtc_ss;
  80         unsigned long crtc_ls;
  81         unsigned long crtc_gs;
  82         unsigned long crtc_vpos_gs;
  83         unsigned long crtc_rev;
  84         unsigned long crtc_dclk;
  85         unsigned long crtc_gclk;
  86         unsigned long crtc_goe;
  87         unsigned long crtc_ps1_active;
  88         char pll_freq;
  89         char fast_pll_freq;
  90         int sysclk_src;
  91         int sysclk_divider;
  92         int pixclk_src;
  93         int pixclk_divider;
  94         int pixclk_divider_rotated;
  95 };
  96
  97 struct w100_pll_info {
  98         uint16_t freq;  /* desired Fout for PLL (Mhz) */
  99         uint8_t M;      /* input divider */
 100         uint8_t N_int;  /* VCO multiplier */
 101         uint8_t N_fac;  /* VCO multiplier fractional part */
 102         uint8_t tfgoal;
 103         uint8_t lock_time;
 104 };
 105
 106 /* Initial Video mode orientation flags */
 107 #define INIT_MODE_ROTATED  0x1
 108 #define INIT_MODE_FLIPPED  0x2
 109
 110 /*
 111  * This structure describes the machine which we are running on.
 112  * It is set by machine specific code and used in the probe routine
 113  * of drivers/video/w100fb.c
 114  */
 115 struct w100fb_mach_info {
 116         /* General Platform Specific Registers */
 117         struct w100_gen_regs *regs;
 118         /* Table of modes the LCD is capable of */
 119         struct w100_mode *modelist;
 120         unsigned int num_modes;
 121         /* Hooks for any platform specific tg/lcd code (optional) */
 122         struct w100_tg_info *tg;
 123         /* External memory definition (if present) */
 124         struct w100_mem_info *mem;
 125         /* Additional External memory definition (if present) */
 126         struct w100_bm_mem_info *bm_mem;
 127         /* GPIO definitions (optional) */
 128         struct w100_gpio_regs *gpio;
 129         /* Initial Mode flags */
 130         unsigned int init_mode;
 131         /* Xtal Frequency */
 132         unsigned int xtal_freq;
 133         /* Enable Xtal input doubler (1 == enable) */
 134         unsigned int xtal_dbl;
 135 };
 136
 137 /* General frame buffer data structure */
 138 struct w100fb_par {
 139         unsigned int chip_id;
 140         unsigned int xres;
 141         unsigned int yres;
 142         unsigned int extmem_active;
 143         unsigned int flip;
 144         unsigned int blanked;
 145         unsigned int fastpll_mode;
 146         unsigned long hsync_len;
 147         struct w100_mode *mode;
 148         struct w100_pll_info *pll_table;
 149         struct w100fb_mach_info *mach;
 150         uint32_t *saved_intmem;
 151         uint32_t *saved_extmem;
 152 };