2 * S5PC100 LCD Controller driver.
4 * Author: InKi Dae <inki.dae@samsung.com>
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.
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.
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,
26 #include <linux/types.h>
31 #include "opening_wvga_32.h"
33 #define PANEL_WIDTH 480
34 #define PANEL_HEIGHT 800
35 #define S5P_LCD_BPP 32
37 extern void tl2796_panel_power_on(void);
38 extern void tl2796_panel_enable(void);
39 extern void tl2796_panel_init(void);
46 void *lcd_console_address;
51 static unsigned short makepixel565(char r, char g, char b)
53 return (unsigned short)(((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3));
56 static unsigned int makepixel8888(char a, char r, char g, char b)
58 return (unsigned int)((a << 24) | (r << 16) | (g << 8) | b);
61 static void read_image16(char* pImg, int x1pos, int y1pos, int x2pos,
62 int y2pos, unsigned short pixel)
64 unsigned short *pDst = (unsigned short *)pImg;
65 unsigned int offset_s;
68 for(i = y1pos; i < y2pos; i++) {
69 for(j = x1pos; j < x2pos; j++) {
70 offset_s = i * PANEL_WIDTH + j;
71 *(pDst + offset_s) = pixel;
76 static void read_image32(char* pImg, int x1pos, int y1pos, int x2pos,
77 int y2pos, unsigned int pixel)
79 unsigned int *pDst = (unsigned int *)pImg;
80 unsigned int offset_s;
83 for(i = y1pos; i < y2pos; i++) {
84 for(j = x1pos; j < x2pos; j++) {
85 offset_s = i * PANEL_WIDTH + j;
86 *(pDst+offset_s) = pixel;
92 vidinfo_t panel_info = {
93 .vl_col = PANEL_WIDTH,
94 .vl_row = PANEL_HEIGHT,
95 .vl_width = PANEL_WIDTH,
96 .vl_height = PANEL_HEIGHT,
97 .vl_clkp = CONFIG_SYS_HIGH,
98 .vl_hsp = CONFIG_SYS_LOW,
99 .vl_vsp = CONFIG_SYS_LOW,
100 .vl_dp = CONFIG_SYS_HIGH,
101 .vl_bpix = S5P_LCD_BPP,
116 static void s5pc_lcd_clock_enable(void)
118 s5pc_fimd_lcd_clock_enable();
121 static void s5pc_lcd_init_mem(void *lcdbase, vidinfo_t *vid)
123 unsigned long palette_size, palette_mem_size;
124 unsigned int fb_size;
126 fb_size = vid->vl_row * vid->vl_col * (vid->vl_bpix / 8);
130 palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
131 palette_mem_size = palette_size * sizeof(u32);
133 s5pc_fimd_lcd_init_mem((unsigned long)lcd_base, (unsigned long)fb_size, palette_size);
135 udebug("fb_size=%d, screen_base=%x, palette_size=%d, palettle_mem_size=%d\n",
136 fb_size, (unsigned int)lcd_base, (int)palette_size, (int)palette_mem_size);
139 static void s5pc_gpio_setup(void)
141 s5pc_fimd_gpio_setup();
144 static void s5pc_lcd_init(vidinfo_t *vid)
146 s5pc_fimd_lcd_init(vid);
149 static void lcd_test(void)
152 read_image32((char *)lcd_base, 0, 0, 480, 200,
153 makepixel8888(0, 255, 0, 0));
155 read_image32((char *)lcd_base, 0, 200, 480, 400,
156 makepixel8888(0, 0, 255, 0));
158 read_image32((char *)lcd_base, 0, 400, 480, 600,
159 makepixel8888(0, 0, 0, 255));
161 read_image32((char *)lcd_base, 0, 600, 480, 800,
162 makepixel8888(0, 255, 255, 255));
165 void draw_bitmap(void *lcdbase, int x, int y, int w, int h, unsigned long *bmp)
168 unsigned long *fb = (unsigned long*)lcdbase;
170 for (j = y; j < (y + h); j++) {
171 for (i = x; i < (w + x); i++) {
172 *(fb + (j * PANEL_WIDTH) + i) =
173 *(unsigned long *)(bmp + k);
179 static void draw_samsung_logo(void* lcdbase)
183 x = (PANEL_WIDTH - 138) / 2;
184 y = (PANEL_HEIGHT - 28) / 2 - 5;
186 draw_bitmap(lcdbase, x, y, 138, 28, (unsigned long *)opening_32);
189 static void lcd_panel_on(void)
192 tl2796_panel_power_on();
193 tl2796_panel_enable();
196 void lcd_ctrl_init(void *lcdbase)
198 s5pc_lcd_clock_enable();
200 s5pc_lcd_init_mem(lcdbase, &panel_info);
202 #if defined(CONFIG_S5PC1XXFB_TEST)
203 memset(lcdbase, 0, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP/8);
206 #if defined(CONFIG_S5PC1XXFB_LOGO)
207 memset(lcdbase, 0, PANEL_WIDTH*PANEL_HEIGHT*S5P_LCD_BPP/8);
208 draw_samsung_logo(lcdbase);
212 s5pc_lcd_init(&panel_info);
215 void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blud)
220 void lcd_enable(void)
225 ulong calc_fbsize(void)
227 return s5pc_fimd_calc_fbsize();
230 void s5pc1xxfb_test(void *lcdbase)
232 lcd_ctrl_init(lcdbase);