LXR linux/include/video/w100fb.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 *  Support for the w100 frame buffer.
   4 *
   5 *  Copyright (c) 2004-2005 Richard Purdie
   6 *  Copyright (c) 2005 Ian Molton
   7 */
   8
   9#define W100_GPIO_PORT_A        0
  10#define W100_GPIO_PORT_B        1
  11
  12#define CLK_SRC_XTAL  0
  13#define CLK_SRC_PLL   1
  14
  15struct w100fb_par;
  16
  17unsigned long w100fb_gpio_read(int port);
  18void w100fb_gpio_write(int port, unsigned long value);
  19unsigned long w100fb_get_hsynclen(struct device *dev);
  20
  21/* LCD Specific Routines and Config */
  22struct w100_tg_info {
  23        void (*change)(struct w100fb_par*);
  24        void (*suspend)(struct w100fb_par*);
  25        void (*resume)(struct w100fb_par*);
  26};
  27
  28/* General Platform Specific w100 Register Values */
  29struct w100_gen_regs {
  30        unsigned long lcd_format;
  31        unsigned long lcdd_cntl1;
  32        unsigned long lcdd_cntl2;
  33        unsigned long genlcd_cntl1;
  34        unsigned long genlcd_cntl2;
  35        unsigned long genlcd_cntl3;
  36};
  37
  38struct w100_gpio_regs {
  39        unsigned long init_data1;
  40        unsigned long init_data2;
  41        unsigned long gpio_dir1;
  42        unsigned long gpio_oe1;
  43        unsigned long gpio_dir2;
  44        unsigned long gpio_oe2;
  45};
  46
  47/* Optional External Memory Configuration */
  48struct w100_mem_info {
  49        unsigned long ext_cntl;
  50        unsigned long sdram_mode_reg;
  51        unsigned long ext_timing_cntl;
  52        unsigned long io_cntl;
  53        unsigned int size;
  54};
  55
  56struct w100_bm_mem_info {
  57        unsigned long ext_mem_bw;
  58        unsigned long offset;
  59        unsigned long ext_timing_ctl;
  60        unsigned long ext_cntl;
  61        unsigned long mode_reg;
  62        unsigned long io_cntl;
  63        unsigned long config;
  64};
  65
  66/* LCD Mode definition */
  67struct w100_mode {
  68        unsigned int xres;
  69        unsigned int yres;
  70        unsigned short left_margin;
  71        unsigned short right_margin;
  72        unsigned short upper_margin;
  73        unsigned short lower_margin;
  74        unsigned long crtc_ss;
  75        unsigned long crtc_ls;
  76        unsigned long crtc_gs;
  77        unsigned long crtc_vpos_gs;
  78        unsigned long crtc_rev;
  79        unsigned long crtc_dclk;
  80        unsigned long crtc_gclk;
  81        unsigned long crtc_goe;
  82        unsigned long crtc_ps1_active;
  83        char pll_freq;
  84        char fast_pll_freq;
  85        int sysclk_src;
  86        int sysclk_divider;
  87        int pixclk_src;
  88        int pixclk_divider;
  89        int pixclk_divider_rotated;
  90};
  91
  92struct w100_pll_info {
  93        uint16_t freq;  /* desired Fout for PLL (Mhz) */
  94        uint8_t M;      /* input divider */
  95        uint8_t N_int;  /* VCO multiplier */
  96        uint8_t N_fac;  /* VCO multiplier fractional part */
  97        uint8_t tfgoal;
  98        uint8_t lock_time;
  99};
 100
 101/* Initial Video mode orientation flags */
 102#define INIT_MODE_ROTATED  0x1
 103#define INIT_MODE_FLIPPED  0x2
 104
 105/*
 106 * This structure describes the machine which we are running on.
 107 * It is set by machine specific code and used in the probe routine
 108 * of drivers/video/w100fb.c
 109 */
 110struct w100fb_mach_info {
 111        /* General Platform Specific Registers */
 112        struct w100_gen_regs *regs;
 113        /* Table of modes the LCD is capable of */
 114        struct w100_mode *modelist;
 115        unsigned int num_modes;
 116        /* Hooks for any platform specific tg/lcd code (optional) */
 117        struct w100_tg_info *tg;
 118        /* External memory definition (if present) */
 119        struct w100_mem_info *mem;
 120        /* Additional External memory definition (if present) */
 121        struct w100_bm_mem_info *bm_mem;
 122        /* GPIO definitions (optional) */
 123        struct w100_gpio_regs *gpio;
 124        /* Initial Mode flags */
 125        unsigned int init_mode;
 126        /* Xtal Frequency */
 127        unsigned int xtal_freq;
 128        /* Enable Xtal input doubler (1 == enable) */
 129        unsigned int xtal_dbl;
 130};
 131
 132/* General frame buffer data structure */
 133struct w100fb_par {
 134        unsigned int chip_id;
 135        unsigned int xres;
 136        unsigned int yres;
 137        unsigned int extmem_active;
 138        unsigned int flip;
 139        unsigned int blanked;
 140        unsigned int fastpll_mode;
 141        unsigned long hsync_len;
 142        struct w100_mode *mode;
 143        struct w100_pll_info *pll_table;
 144        struct w100fb_mach_info *mach;
 145        uint32_t *saved_intmem;
 146        uint32_t *saved_extmem;
 147};
 148