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