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
  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 void *lcd_base;
  51 void *lcd_console_address;
  52
  53 short console_col;
  54 short console_row;
  55
  56 static unsigned short makepixel565(char r, char g, char b)
  57 {
  58     return (unsigned short)(((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3));
  59 }
  60
  61 static unsigned int makepixel8888(char a, char r, char g, char b)
  62 {
  63         return (unsigned int)((a << 24) | (r << 16) | (g << 8)  | b);
  64 }
  65
  66 static void read_image16(char* pImg, int x1pos, int y1pos, int x2pos,
  67                 int y2pos, unsigned short pixel)
  68 {
  69         unsigned short *pDst = (unsigned short *)pImg;
  70         unsigned int offset_s;
  71         int i, j;
  72
  73         for(i = y1pos; i < y2pos; i++) {
  74                 for(j = x1pos; j < x2pos; j++) {
  75                         offset_s = i * PANEL_WIDTH + j;
  76                         *(pDst + offset_s) = pixel;
  77                 }
  78         }
  79 }
  80
  81 static void read_image32(char* pImg, int x1pos, int y1pos, int x2pos,
  82                 int y2pos, unsigned int pixel)
  83 {
  84         unsigned int *pDst = (unsigned int *)pImg;
  85         unsigned int offset_s;
  86         int i, j;
  87
  88         for(i = y1pos; i < y2pos; i++) {
  89                 for(j = x1pos; j < x2pos; j++) {
  90                         offset_s = i * PANEL_WIDTH + j;
  91                         *(pDst+offset_s) = pixel;
  92                 }
  93         }
  94 }
  95
  96 /* LCD Panel data */
  97 vidinfo_t panel_info = {
  98                 .vl_col         = PANEL_WIDTH,
  99                 .vl_row         = PANEL_HEIGHT,
 100                 .vl_width       = PANEL_WIDTH,
 101                 .vl_height      = PANEL_HEIGHT,
 102                 .vl_clkp        = CONFIG_SYS_HIGH,
 103                 .vl_hsp         = CONFIG_SYS_LOW,
 104                 .vl_vsp         = CONFIG_SYS_LOW,
 105                 .vl_dp          = CONFIG_SYS_HIGH,
 106                 .vl_bpix        = S5P_LCD_BPP,
 107                 .vl_lbw         = 0,
 108                 .vl_splt        = 0,
 109                 .vl_clor        = 1,
 110                 .vl_tft         = 1,
 111
 112                 /* S6E63M0 LCD Panel */
 113                 .vl_hpw         = 2,
 114                 .vl_blw         = 16,
 115                 .vl_elw         = 16,
 116
 117                 .vl_vpw         = 2,
 118                 .vl_bfw         = 3,
 119                 .vl_efw         = 28,
 120                 /* tl2796 panel.
 121                 .vl_hpw         = 4,
 122                 .vl_blw         = 8,
 123                 .vl_elw         = 8,
 124
 125                 .vl_vpw         = 4,
 126                 .vl_bfw         = 8,
 127                 .vl_efw         = 8,
 128                 */
 129 };
 130
 131 static void s5pc_lcd_init_mem(void *lcdbase, vidinfo_t *vid)
 132 {
 133         unsigned long palette_size, palette_mem_size;
 134         unsigned int fb_size;
 135
 136         fb_size = vid->vl_row * vid->vl_col * (vid->vl_bpix / 8);
 137
 138         lcd_base = lcdbase;
 139
 140         palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
 141         palette_mem_size = palette_size * sizeof(u32);
 142
 143         s5pc_fimd_lcd_init_mem((unsigned long)lcd_base, (unsigned long)fb_size, palette_size);
 144
 145         udebug("fb_size=%d, screen_base=%x, palette_size=%d, palettle_mem_size=%d\n",
 146                         fb_size, (unsigned int)lcd_base, (int)palette_size, (int)palette_mem_size);
 147 }
 148
 149 static void s5pc_gpio_setup(void)
 150 {
 151         if (cpu_is_s5pc100())
 152                 s5pc_c100_gpio_setup();
 153         else
 154                 s5pc_c110_gpio_setup();
 155 }
 156
 157 static void s5pc_lcd_init(vidinfo_t *vid)
 158 {
 159         s5pc_fimd_lcd_init(vid);
 160 }
 161
 162 static void lcd_test(void)
 163 {
 164         /* red */
 165         read_image32((char *)lcd_base, 0, 0, 480, 200,
 166                         makepixel8888(0, 255, 0, 0));
 167         /* green */
 168         read_image32((char *)lcd_base, 0, 200, 480, 400,
 169                         makepixel8888(0, 0, 255, 0));
 170         /* blue */
 171         read_image32((char *)lcd_base, 0, 400, 480, 600,
 172                         makepixel8888(0, 0, 0, 255));
 173         /* write */
 174         read_image32((char *)lcd_base, 0, 600, 480, 800,
 175                         makepixel8888(0, 255, 255, 255));
 176 }
 177
 178 int convrgb565_to_rgb888(unsigned short rgb565, unsigned int sw)
 179 {
 180         char red, green, blue;
 181         unsigned int threshold = 100;
 182
 183         red = (rgb565 & 0xF800) >> 11;
 184         green = (rgb565 & 0x7E0) >> 5;
 185         blue = (rgb565 & 0x1F);
 186
 187         red = red << 3;
 188         green = green << 2;
 189         blue = blue << 3;
 190
 191         /* correct pixel value because of drawing samsung logo. */
 192         if (sw) {
 193                 if (red > threshold)
 194                         red = 255;
 195                 if (green > threshold)
 196                         green = 255;
 197                 if (blue > threshold)
 198                         blue = 255;
 199         }
 200
 201         return (red << 16 | green << 8 | blue);
 202 }
 203
 204 void draw_bitmap(void *lcdbase, int x, int y, int w, int h, unsigned long *bmp)
 205 {
 206         int i, j;
 207         short k = 0;
 208         unsigned long *fb = (unsigned  long*)lcdbase;
 209
 210         for (j = y; j < (y + h); j++) {
 211                 for (i = x; i < (x + w); i++)
 212                         *(fb + (j * PANEL_WIDTH) + i) = *(bmp + k++);
 213         }
 214 }
 215
 216 void _draw_samsung_logo(void *lcdbase, int x, int y, int w, int h, unsigned short *bmp)
 217 {
 218         int i, j;
 219         short k = 0;
 220         unsigned long *fb = (unsigned  long*)lcdbase;
 221
 222         for (j = y; j < (y + h); j++) {
 223                 for (i = x; i < (x + w); i++)
 224                         *(fb + (j * PANEL_WIDTH) + i) =
 225                                 convrgb565_to_rgb888(*(bmp + k++), 1);
 226         }
 227 }
 228
 229 static void draw_samsung_logo(void* lcdbase)
 230 {
 231         int x, y;
 232
 233         x = (PANEL_WIDTH - 298) / 2;
 234         y = (PANEL_HEIGHT - 78) / 2 - 5;
 235
 236         _draw_samsung_logo(lcdbase, x, y, 298, 78, (unsigned long *)logo);
 237 }
 238
 239 static void lcd_panel_on(void)
 240 {
 241         lcd_panel_init();
 242         lcd_panel_power_on();
 243
 244         lcd_panel_enable();
 245 }
 246
 247 void lcd_ctrl_init(void *lcdbase)
 248 {
 249         char *option;
 250
 251         s5pc_lcd_init_mem(lcdbase, &panel_info);
 252
 253         option = getenv("lcd");
 254
 255         /*
 256         if (strcmp(option, "test") == 0) {
 257                 memset(lcdbase, 0, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP >> 3);
 258                 lcd_test();
 259         } else if (strcmp(option, "image") == 0)
 260                 memcpy(lcdbase, LOGO_RGB24, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP >> 3);
 261         else {
 262                 memset(lcdbase, 0, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP >> 3);
 263                 draw_samsung_logo(lcdbase);
 264         }
 265         */
 266
 267         memset(lcdbase, 0, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP >> 3);
 268         draw_samsung_logo(lcdbase);
 269
 270         s5pc_gpio_setup();
 271
 272         s5pc_lcd_init(&panel_info);
 273
 274         /* font test */
 275         /*
 276         init_font();
 277         set_font_color(FONT_WHITE);
 278         fb_printf("Test\n");
 279         exit_font();
 280         */
 281 }
 282
 283
 284 void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blud)
 285 {
 286         return;
 287 }
 288
 289 void lcd_enable(void)
 290 {
 291         lcd_panel_on();
 292 }
 293
 294 ulong calc_fbsize(void)
 295 {
 296         return s5pc_fimd_calc_fbsize();
 297 }
 298
 299 void s5pc1xxfb_test(void *lcdbase)
 300 {
 301         lcd_ctrl_init(lcdbase);
 302         lcd_enable();
 303
 304         //memcpy(lcdbase, LOGO_RGB24, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP >> 3);
 305 }