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