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