drivers/video/s5p-fb.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 "logo.h"
  33 /*
  34 #include "logo_rgb24_wvga_portrait.h"
  35 #include "opening_logo_rgb24_143_44.h"
  36 */
  37
  38 extern void tl2796_panel_power_on(void);
  39 extern void tl2796_panel_enable(void);
  40 extern void tl2796_panel_init(void);
  41
  42 int lcd_line_length;
  43 int lcd_color_fg;
  44 int lcd_color_bg;
  45
  46 void *lcd_base;
  47 void *lcd_console_address;
  48
  49 short console_col;
  50 short console_row;
  51
  52 static unsigned int panel_width, panel_height;
  53
  54 static unsigned short makepixel565(char r, char g, char b)
  55 {
  56     return (unsigned short)(((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3));
  57 }
  58
  59 static unsigned int makepixel8888(char a, char r, char g, char b)
  60 {
  61         return (unsigned int)((a << 24) | (r << 16) | (g << 8)  | b);
  62 }
  63
  64 static void read_image16(char* pImg, int x1pos, int y1pos, int x2pos,
  65                 int y2pos, unsigned short pixel)
  66 {
  67         unsigned short *pDst = (unsigned short *)pImg;
  68         unsigned int offset_s;
  69         int i, j;
  70
  71         for(i = y1pos; i < y2pos; i++) {
  72                 for(j = x1pos; j < x2pos; j++) {
  73                         offset_s = i * panel_width + j;
  74                         *(pDst + offset_s) = pixel;
  75                 }
  76         }
  77 }
  78
  79 static void read_image32(char* pImg, int x1pos, int y1pos, int x2pos,
  80                 int y2pos, unsigned int pixel)
  81 {
  82         unsigned int *pDst = (unsigned int *)pImg;
  83         unsigned int offset_s;
  84         int i, j;
  85
  86         for(i = y1pos; i < y2pos; i++) {
  87                 for(j = x1pos; j < x2pos; j++) {
  88                         offset_s = i * panel_width + j;
  89                         *(pDst+offset_s) = pixel;
  90                 }
  91         }
  92 }
  93
  94 /* LCD Panel data */
  95 vidinfo_t panel_info = {
  96                 .vl_lbw         = 0,
  97                 .vl_splt        = 0,
  98                 .vl_clor        = 1,
  99                 .vl_tft         = 1,
 100 };
 101
 102 static void s5pc_lcd_init_mem(void *lcdbase, vidinfo_t *vid)
 103 {
 104         unsigned long palette_size, palette_mem_size;
 105         unsigned int fb_size;
 106
 107         fb_size = vid->vl_row * vid->vl_col * (vid->vl_bpix / 8);
 108
 109         lcd_base = lcdbase;
 110
 111         palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
 112         palette_mem_size = palette_size * sizeof(u32);
 113
 114         s5pc_fimd_lcd_init_mem((unsigned long)lcd_base, (unsigned long)fb_size, palette_size);
 115
 116         udebug("fb_size=%d, screen_base=%x, palette_size=%d, palettle_mem_size=%d\n",
 117                         fb_size, (unsigned int)lcd_base, (int)palette_size, (int)palette_mem_size);
 118 }
 119
 120 static void s5pc_gpio_setup(void)
 121 {
 122         if (cpu_is_s5pc100())
 123                 s5pc_c100_gpio_setup();
 124         else
 125                 s5pc_c110_gpio_setup();
 126 }
 127
 128 static void s5pc_lcd_init(vidinfo_t *vid)
 129 {
 130         s5pc_fimd_lcd_init(vid);
 131 }
 132
 133 static void lcd_test(void)
 134 {
 135         /* red */
 136         read_image32((char *)lcd_base, 0, 0, 480, 200,
 137                         makepixel8888(0, 255, 0, 0));
 138         /* green */
 139         read_image32((char *)lcd_base, 0, 200, 480, 400,
 140                         makepixel8888(0, 0, 255, 0));
 141         /* blue */
 142         read_image32((char *)lcd_base, 0, 400, 480, 600,
 143                         makepixel8888(0, 0, 0, 255));
 144         /* write */
 145         read_image32((char *)lcd_base, 0, 600, 480, 800,
 146                         makepixel8888(0, 255, 255, 255));
 147 }
 148
 149 int conv_rgb565_to_rgb888(unsigned short rgb565, unsigned int sw)
 150 {
 151         char red, green, blue;
 152         unsigned int threshold = 150;
 153
 154         red = (rgb565 & 0xF800) >> 11;
 155         green = (rgb565 & 0x7E0) >> 5;
 156         blue = (rgb565 & 0x1F);
 157
 158         red = red << 3;
 159         green = green << 2;
 160         blue = blue << 3;
 161
 162         /* correct error pixels of samsung logo. */
 163         if (sw) {
 164                 if (red > threshold)
 165                         red = 255;
 166                 if (green > threshold)
 167                         green = 255;
 168                 if (blue > threshold)
 169                         blue = 255;
 170         }
 171
 172         return (red << 16 | green << 8 | blue);
 173 }
 174
 175 void draw_bitmap(void *lcdbase, int x, int y, int w, int h, unsigned long *bmp)
 176 {
 177         int i, j;
 178         short k = 0;
 179         unsigned long *fb = (unsigned  long*)lcdbase;
 180
 181         for (j = y; j < (y + h); j++) {
 182                 for (i = x; i < (x + w); i++)
 183                         *(fb + (j * panel_width) + i) = *(bmp + k++);
 184         }
 185 }
 186
 187 void _draw_samsung_logo(void *lcdbase, int x, int y, int w, int h, unsigned short *bmp)
 188 {
 189         int i, j, error_range = 40;
 190         short k = 0;
 191         unsigned int pixel;
 192         unsigned long *fb = (unsigned  long*)lcdbase;
 193
 194         for (j = y; j < (y + h); j++) {
 195                 for (i = x; i < (x + w); i++) {
 196                         pixel = (*(bmp + k++));
 197
 198                         /* 40 lines under samsung logo image are error range. */
 199                         if (j > h + y - error_range)
 200                                 *(fb + (j * panel_width) + i) =
 201                                         conv_rgb565_to_rgb888(pixel, 1);
 202                         else
 203                                 *(fb + (j * panel_width) + i) =
 204                                         conv_rgb565_to_rgb888(pixel, 0);
 205                 }
 206         }
 207 }
 208
 209 static void draw_samsung_logo(void* lcdbase)
 210 {
 211         int x, y;
 212
 213         x = (panel_width - 298) / 2;
 214         y = (panel_height - 78) / 2 - 5;
 215
 216         _draw_samsung_logo(lcdbase, x, y, 298, 78, (unsigned short *) logo);
 217 }
 218
 219 static void s5pc_init_panel_info(vidinfo_t *vid)
 220 {
 221 #if 1
 222         vid->vl_col     = 480,
 223         vid->vl_row     = 800,
 224         vid->vl_width   = 480,
 225         vid->vl_height  = 800,
 226         vid->vl_clkp    = CONFIG_SYS_HIGH,
 227         vid->vl_hsp     = CONFIG_SYS_LOW,
 228         vid->vl_vsp     = CONFIG_SYS_LOW,
 229         vid->vl_dp      = CONFIG_SYS_HIGH,
 230         vid->vl_bpix    = 32,
 231
 232         /* S6E63M0 LCD Panel */
 233         vid->vl_hpw     = 2,    /* HLW */
 234         vid->vl_blw     = 16,   /* HBP */
 235         vid->vl_elw     = 16,   /* HFP */
 236
 237         vid->vl_vpw     = 2,    /* VLW */
 238         vid->vl_bfw     = 3,    /* VBP */
 239         vid->vl_efw     = 28,   /* VFP */
 240 #endif
 241 #if 0
 242         vid->vl_col     = 480,
 243         vid->vl_row     = 800,
 244         vid->vl_width   = 480,
 245         vid->vl_height  = 800,
 246         vid->vl_clkp    = CONFIG_SYS_HIGH,
 247         vid->vl_hsp     = CONFIG_SYS_LOW,
 248         vid->vl_vsp     = CONFIG_SYS_LOW,
 249         vid->vl_dp      = CONFIG_SYS_HIGH,
 250         vid->vl_bpix    = 32,
 251
 252         /* tl2796 panel. */
 253         vid->vl_hpw     = 4,
 254         vid->vl_blw     = 8,
 255         vid->vl_elw     = 8,
 256
 257         vid->vl_vpw     = 4,
 258         vid->vl_bfw     = 8,
 259         vid->vl_efw     = 8,
 260 #endif
 261 #if 0
 262         vid->vl_col     = 1024,
 263         vid->vl_row     = 600,
 264         vid->vl_width   = 1024,
 265         vid->vl_height  = 600,
 266         vid->vl_clkp    = CONFIG_SYS_HIGH,
 267         vid->vl_hsp     = CONFIG_SYS_HIGH,
 268         vid->vl_vsp     = CONFIG_SYS_HIGH,
 269         vid->vl_dp      = CONFIG_SYS_LOW,
 270         vid->vl_bpix    = 32,
 271
 272         /* AMS701KA AMOLED Panel. */
 273         vid->vl_hpw     = 30,
 274         vid->vl_blw     = 114,
 275         vid->vl_elw     = 48,
 276
 277         vid->vl_vpw     = 2,
 278         vid->vl_bfw     = 6,
 279         vid->vl_efw     = 8,
 280 #endif
 281
 282         panel_width = vid->vl_col;
 283         panel_height = vid->vl_row;
 284 }
 285
 286 static void lcd_panel_on(void)
 287 {
 288         lcd_panel_init();
 289         lcd_panel_power_on();
 290
 291         lcd_panel_enable();
 292 }
 293
 294 void lcd_ctrl_init(void *lcdbase)
 295 {
 296         char *option;
 297
 298         s5pc_lcd_init_mem(lcdbase, &panel_info);
 299
 300         /* initialize parameters which is specific to panel. */
 301         s5pc_init_panel_info(&panel_info);
 302
 303         option = getenv("lcd");
 304
 305         /*
 306         if (strcmp(option, "test") == 0) {
 307                 memset(lcdbase, 0, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP >> 3);
 308                 lcd_test();
 309         } else if (strcmp(option, "image") == 0)
 310                 memcpy(lcdbase, LOGO_RGB24, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP >> 3);
 311         else {
 312                 memset(lcdbase, 0, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP >> 3);
 313                 draw_samsung_logo(lcdbase);
 314         }
 315         */
 316
 317         memset(lcdbase, 0, panel_width * panel_height * (32 >> 3));
 318         draw_samsung_logo(lcdbase);
 319
 320         s5pc_gpio_setup();
 321
 322         s5pc_lcd_init(&panel_info);
 323
 324         /* font test */
 325         /*
 326         init_font();
 327         set_font_color(FONT_WHITE);
 328         fb_printf("Test\n");
 329         exit_font();
 330         */
 331 }
 332
 333
 334 void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blud)
 335 {
 336         return;
 337 }
 338
 339 void lcd_enable(void)
 340 {
 341         lcd_panel_on();
 342 }
 343
 344 ulong calc_fbsize(void)
 345 {
 346         return s5pc_fimd_calc_fbsize();
 347 }
 348
 349 void s5pc1xxfb_test(void *lcdbase)
 350 {
 351         lcd_ctrl_init(lcdbase);
 352         lcd_enable();
 353 }