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 "opening_wvga_32.h"
  33 //#include "logo_rgb24_wvga_portrait.h"
  34 //#include "opening_logo_rgb24_143_44.h"
  35
  36 #define PANEL_WIDTH             480
  37 #define PANEL_HEIGHT            800
  38 #define S5P_LCD_BPP             32
  39
  40 extern void tl2796_panel_power_on(void);
  41 extern void tl2796_panel_enable(void);
  42 extern void tl2796_panel_init(void);
  43
  44 int lcd_line_length;
  45 int lcd_color_fg;
  46 int lcd_color_bg;
  47
  48 void *lcd_base;
  49 void *lcd_console_address;
  50
  51 short console_col;
  52 short console_row;
  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_col         = PANEL_WIDTH,
  97                 .vl_row         = PANEL_HEIGHT,
  98                 .vl_width       = PANEL_WIDTH,
  99                 .vl_height      = PANEL_HEIGHT,
 100                 .vl_clkp        = CONFIG_SYS_HIGH,
 101                 .vl_hsp         = CONFIG_SYS_LOW,
 102                 .vl_vsp         = CONFIG_SYS_LOW,
 103                 .vl_dp          = CONFIG_SYS_HIGH,
 104                 .vl_bpix        = S5P_LCD_BPP,
 105                 .vl_lbw         = 0,
 106                 .vl_splt        = 0,
 107                 .vl_clor        = 1,
 108                 .vl_tft         = 1,
 109
 110                 .vl_hpw         = 4,
 111                 .vl_blw         = 8,
 112                 .vl_elw         = 8,
 113
 114                 .vl_vpw         = 4,
 115                 .vl_bfw         = 8,
 116                 .vl_efw         = 8,
 117 };
 118
 119 static void s5pc_lcd_init_mem(void *lcdbase, vidinfo_t *vid)
 120 {
 121         unsigned long palette_size, palette_mem_size;
 122         unsigned int fb_size;
 123
 124         fb_size = vid->vl_row * vid->vl_col * (vid->vl_bpix / 8);
 125
 126         lcd_base = lcdbase;
 127
 128         palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
 129         palette_mem_size = palette_size * sizeof(u32);
 130
 131         s5pc_fimd_lcd_init_mem((unsigned long)lcd_base, (unsigned long)fb_size, palette_size);
 132
 133         udebug("fb_size=%d, screen_base=%x, palette_size=%d, palettle_mem_size=%d\n",
 134                         fb_size, (unsigned int)lcd_base, (int)palette_size, (int)palette_mem_size);
 135 }
 136
 137 static void s5pc_gpio_setup(void)
 138 {
 139         if (cpu_is_s5pc100())
 140                 s5pc_c100_gpio_setup();
 141         else
 142                 s5pc_c110_gpio_setup();
 143 }
 144
 145 static void s5pc_lcd_init(vidinfo_t *vid)
 146 {
 147         s5pc_fimd_lcd_init(vid);
 148 }
 149
 150 static void lcd_test(void)
 151 {
 152         /* red */
 153         read_image32((char *)lcd_base, 0, 0, 480, 200,
 154                         makepixel8888(0, 255, 0, 0));
 155         /* green */
 156         read_image32((char *)lcd_base, 0, 200, 480, 400,
 157                         makepixel8888(0, 0, 255, 0));
 158         /* blue */
 159         read_image32((char *)lcd_base, 0, 400, 480, 600,
 160                         makepixel8888(0, 0, 0, 255));
 161         /* write */
 162         read_image32((char *)lcd_base, 0, 600, 480, 800,
 163                         makepixel8888(0, 255, 255, 255));
 164 }
 165
 166 void draw_bitmap(void *lcdbase, int x, int y, int w, int h, unsigned long *bmp)
 167 {
 168         int i, j, k = 0;
 169         unsigned long *fb = (unsigned  long*)lcdbase;
 170
 171         for (j = y; j < (y + h); j++) {
 172                 for (i = x; i < (x + w); i++)
 173                         *(fb + (j * PANEL_WIDTH) + i) = *(bmp + k++);
 174         }
 175 }
 176
 177 static void draw_samsung_logo(void* lcdbase)
 178 {
 179         int x, y;
 180
 181         x = (PANEL_WIDTH - 138) / 2;
 182         y = (PANEL_HEIGHT - 28) / 2 - 5;
 183
 184         draw_bitmap(lcdbase, x, y, 138, 28, (unsigned long *)opening_32);
 185 }
 186
 187 static void lcd_panel_on(void)
 188 {
 189         if (cpu_is_s5pc100()) {
 190                 tl2796_c100_panel_init();
 191                 tl2796_c100_panel_power_on();
 192         } else {
 193                 tl2796_c110_panel_init();
 194                 tl2796_c110_panel_power_on();
 195         }
 196
 197         tl2796_panel_enable();
 198 }
 199
 200 void lcd_ctrl_init(void *lcdbase)
 201 {
 202         char *option;
 203
 204         s5pc_lcd_init_mem(lcdbase, &panel_info);
 205
 206         option = getenv("lcd");
 207
 208         /*
 209         if (strcmp(option, "test") == 0) {
 210                 memset(lcdbase, 0, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP >> 3);
 211                 lcd_test();
 212         } else if (strcmp(option, "image") == 0)
 213                 memcpy(lcdbase, LOGO_RGB24, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP >> 3);
 214         else {
 215                 memset(lcdbase, 0, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP >> 3);
 216                 draw_samsung_logo(lcdbase);
 217         }
 218         */
 219
 220         memset(lcdbase, 0, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP >> 3);
 221         draw_samsung_logo(lcdbase);
 222
 223         s5pc_gpio_setup();
 224
 225         s5pc_lcd_init(&panel_info);
 226 }
 227
 228
 229 void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blud)
 230 {
 231         return;
 232 }
 233
 234 void lcd_enable(void)
 235 {
 236         lcd_panel_on();
 237 }
 238
 239 ulong calc_fbsize(void)
 240 {
 241         return s5pc_fimd_calc_fbsize();
 242 }
 243
 244 void s5pc1xxfb_test(void *lcdbase)
 245 {
 246         lcd_ctrl_init(lcdbase);
 247         lcd_enable();
 248
 249         //memcpy(lcdbase, LOGO_RGB24, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP >> 3);
 250 }