drivers/video/s5p-dualfb.c

   1 /*
   2  * S5PC100 and S5PC110 LCD Controller driver.
   3  *
   4  * Author: InKi Dae <inki.dae@samsung.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of
   9  * the License, or (at your option) any later version.
  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  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  19  * MA 02111-1307 USA
  20  */
  21
  22 #include <config.h>
  23 #include <common.h>
  24 #include <version.h>
  25 #include <stdarg.h>
  26 #include <linux/types.h>
  27 #include <asm/io.h>
  28 #include <asm/arch/cpu.h>
  29 #include <lcd.h>
  30
  31 #include "s5p-fb.h"
  32 #include "opening_wvga_32.h"
  33
  34 #define PANEL_WIDTH             480
  35 #define PANEL_HEIGHT            800
  36 #define S5P_LCD_BPP             32
  37
  38 /* for DUAL LCD */
  39 #define SCREEN_WIDTH            (480 * 2)
  40 #define SCREEN_HEIGHT           800
  41
  42 extern void tl2796_panel_power_on(void);
  43 extern void tl2796_panel_enable(void);
  44 extern void tl2796_panel_init(void);
  45
  46 int lcd_line_length;
  47 int lcd_color_fg;
  48 int lcd_color_bg;
  49
  50 int dual_lcd = 1;
  51
  52 void *lcd_base;
  53 void *lcd_console_address;
  54
  55 short console_col;
  56 short console_row;
  57
  58 static unsigned short makepixel565(char r, char g, char b)
  59 {
  60     return (unsigned short)(((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3));
  61 }
  62
  63 static unsigned int makepixel8888(char a, char r, char g, char b)
  64 {
  65         return (unsigned int)((a << 24) | (r << 16) | (g << 8)  | b);
  66 }
  67
  68 static void read_image16(char* pImg, int x1pos, int y1pos, int x2pos,
  69                 int y2pos, unsigned short pixel)
  70 {
  71         unsigned short *pDst = (unsigned short *)pImg;
  72         unsigned int offset_s;
  73         int i, j;
  74
  75         for(i = y1pos; i < y2pos; i++) {
  76                 for(j = x1pos; j < x2pos; j++) {
  77                         offset_s = i * SCREEN_WIDTH + j;
  78                         *(pDst + offset_s) = pixel;
  79                 }
  80         }
  81 }
  82
  83 static void read_image32(char* pImg, int x1pos, int y1pos, int x2pos,
  84                 int y2pos, unsigned int pixel)
  85 {
  86         unsigned int *pDst = (unsigned int *)pImg;
  87         unsigned int offset_s;
  88         int i, j;
  89
  90         for(i = y1pos; i < y2pos; i++) {
  91                 for(j = x1pos; j < x2pos; j++) {
  92                         offset_s = i * SCREEN_WIDTH + j;
  93                         *(pDst+offset_s) = pixel;
  94                 }
  95         }
  96 }
  97
  98 /* LCD Panel data */
  99 vidinfo_t panel_info = {
 100                 .vl_col         = SCREEN_WIDTH,
 101                 .vl_row         = SCREEN_HEIGHT,
 102                 .vl_width       = PANEL_WIDTH,
 103                 .vl_height      = PANEL_HEIGHT,
 104                 .vl_clkp        = CONFIG_SYS_HIGH,
 105                 .vl_hsp         = CONFIG_SYS_LOW,
 106                 .vl_vsp         = CONFIG_SYS_LOW,
 107                 .vl_dp          = CONFIG_SYS_HIGH,
 108                 .vl_bpix        = S5P_LCD_BPP,
 109                 .vl_lbw         = 0,
 110                 .vl_splt        = 0,
 111                 .vl_clor        = 1,
 112                 .vl_tft         = 1,
 113
 114                 .vl_hpw         = 4,
 115                 .vl_blw         = 8,
 116                 .vl_elw         = 8,
 117
 118                 .vl_vpw         = 4,
 119                 .vl_bfw         = 8,
 120                 .vl_efw         = 8,
 121 };
 122
 123 static void s5pc_lcd_init_mem(void *lcdbase, vidinfo_t *vid)
 124 {
 125         unsigned long palette_size, palette_mem_size;
 126         unsigned int fb_size;
 127
 128         fb_size = vid->vl_row * vid->vl_col * (vid->vl_bpix / 8);
 129
 130         lcd_base = lcdbase;
 131
 132         palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
 133         palette_mem_size = palette_size * sizeof(u32);
 134
 135         s5pc_fimd_lcd_init_mem((unsigned long)lcd_base, (unsigned long)fb_size, palette_size);
 136
 137         udebug("fb_size=%d, screen_base=%x, palette_size=%d, palettle_mem_size=%d\n",
 138                         fb_size, (unsigned int)lcd_base, (int)palette_size, (int)palette_mem_size);
 139 }
 140
 141 static void s5pc_gpio_setup(void)
 142 {
 143         s5pc_c110_gpio_setup();
 144 }
 145
 146 static void s5pc_lcd_init(vidinfo_t *vid)
 147 {
 148         s5pc_fimd_lcd_init(vid);
 149 }
 150
 151 static void dual_lcd_test(void)
 152 {
 153         int x1 = 100, y1 = 50, x2 = 100, y2 = 50, i;
 154         /* red */
 155         read_image32((char *)lcd_base, 0+x1, 0+y1, 960-x2, 200,
 156                         makepixel8888(0, 255, 0, 0));
 157         /* green */
 158         read_image32((char *)lcd_base, 0+x1, 200, 960-x2, 400,
 159                         makepixel8888(0, 0, 255, 0));
 160         /* blue */
 161         read_image32((char *)lcd_base, 0+x1, 400, 960-x2, 600,
 162                         makepixel8888(0, 0, 0, 255));
 163         /* write */
 164         read_image32((char *)lcd_base, 0+x1, 600, 960-x2, 800-y2,
 165                         makepixel8888(0, 255, 255, 255));
 166 }
 167
 168 static void repeat_test(void)
 169 {
 170         int i;
 171
 172         for (i = 100; i < 200; i++) {
 173                 read_image32((char *)lcd_base, 0, 0, 960, 800,
 174                                 makepixel8888(0, (0x1234 * i) & 255, (0x5421 * i) & 255, (0x6789 * i) & 255));
 175         }
 176 }
 177
 178 void draw_bitmap(void *lcdbase, int x, int y, int w, int h, unsigned long *bmp)
 179 {
 180         int i, j, k = 0;
 181         unsigned long *fb = (unsigned  long*)lcdbase;
 182
 183         for (j = y; j < (y + h); j++) {
 184                 for (i = x; i < (w + x); i++) {
 185                         *(fb + (j * SCREEN_WIDTH) + i) =
 186                             *(unsigned long *)(bmp + k);
 187                         k++;
 188                 }
 189         }
 190 }
 191
 192 static void draw_samsung_logo(void* lcdbase)
 193 {
 194         int x, y;
 195
 196         x = (SCREEN_WIDTH - 138) / 2;
 197         y = (SCREEN_HEIGHT - 28) / 2 - 5;
 198
 199         draw_bitmap(lcdbase, x, y, 138, 28, (unsigned long *)opening_32);
 200 }
 201
 202 static void lcd_panel_on(void)
 203 {
 204         tl2796_c110_panel_init();
 205         tl2796_c110_panel_power_on();
 206
 207         tl2796_panel_enable();
 208 }
 209
 210 void lcd_ctrl_init(void *lcdbase)
 211 {
 212         s5pc_lcd_init_mem(lcdbase, &panel_info);
 213
 214         memset(lcd_base, 0, panel_info.vl_col * panel_info.vl_row * S5P_LCD_BPP >> 3);
 215
 216         s5pc_gpio_setup();
 217
 218         s5pc_lcd_init(&panel_info);
 219 }
 220
 221 void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blud)
 222 {
 223         return;
 224 }
 225
 226 void lcd_enable(void)
 227 {
 228         char *option;
 229
 230         lcd_panel_on();
 231
 232         option = getenv("lcd");
 233         if (strcmp(option, "test") == 0)
 234                 dual_lcd_test();
 235         else if (strcmp(option, "on") == 0)
 236                 draw_samsung_logo(lcd_base);
 237         else if (strcmp(option, "repeat") == 0)
 238                 repeat_test();
 239         else
 240                 draw_samsung_logo(lcd_base);
 241 }
 242
 243 ulong calc_fbsize(void)
 244 {
 245         return s5pc_fimd_calc_fbsize();
 246 }
 247
 248 void s5pc1xxfb_test(void *lcdbase)
 249 {
 250         lcd_ctrl_init(lcdbase);
 251         lcd_enable();
 252 }