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