3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of
8 * the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
28 #undef SWAPPED_LCD /* For the previous h/w version */
30 * The name of the device used for communication
33 #define PSOC_PSC MPC5XXX_PSC2
34 #define PSOC_BAUD 230400UL
42 * Dimensions in pixels
45 #define LCD_HEIGHT 100
50 #define LCD_BUF_SIZE ((LCD_WIDTH*LCD_HEIGHT)>>3)
52 #if LCD_BPP != LCD_MONOCHROME
53 #error "MCC200 support only monochrome displays (1 bpp)!"
56 #define PSOC_RETRIES 10 /* each of PSOC_WAIT_TIME */
57 #define PSOC_WAIT_TIME 10 /* usec */
59 #include <video_font.h>
60 #define FONT_WIDTH VIDEO_FONT_WIDTH
62 DECLARE_GLOBAL_DATA_PTR;
67 vidinfo_t panel_info = {
68 LCD_WIDTH, LCD_HEIGHT, LCD_BPP
72 * Frame buffer memory information
74 void *lcd_base; /* Start of framebuffer memory */
77 * The device we use to communicate with PSoC
79 int serial_inited = 0;
84 void lcd_initcolregs (void);
85 void lcd_ctrl_init (void *lcdbase);
86 void lcd_enable (void);
89 * Imported functions to support the PSoC protocol
91 extern int serial_init_dev (unsigned long dev_base);
92 extern void serial_setrts_dev (unsigned long dev_base, int s);
93 extern int serial_getcts_dev (unsigned long dev_base);
94 extern void serial_putc_raw_dev(unsigned long dev_base, const char c);
97 * Just stubs for our driver, needed for compiling compabilty with
98 * the common LCD driver code.
100 void lcd_initcolregs (void)
104 void lcd_ctrl_init (void *lcdbase)
109 * Function sends the contents of the frame-buffer to the LCD
111 void lcd_enable (void)
113 int i, retries, fb_size;
115 if (!serial_inited) {
119 gd->baudrate = PSOC_BAUD;
120 serial_init_dev(PSOC_PSC);
122 serial_setrts_dev (PSOC_PSC, RTS_ASSERT);
127 * Implement PSoC communication protocol:
128 * 1. Assert RTS, wait CTS assertion
130 * 3. Negate RTS, wait CTS negation
134 serial_setrts_dev (PSOC_PSC, RTS_ASSERT);
135 for (retries = PSOC_RETRIES; retries; retries--) {
136 if (serial_getcts_dev(PSOC_PSC) == CTS_ASSERT)
138 udelay (PSOC_WAIT_TIME);
141 printf ("%s Error: PSoC doesn't respond on "
142 "RTS ASSERT\n", __FUNCTION__);
146 fb_size = panel_info.vl_row * (panel_info.vl_col >> 3);
148 #if !defined(SWAPPED_LCD)
149 for (i=0; i<fb_size; i++) {
150 serial_putc_raw_dev (PSOC_PSC, ((char *)lcd_base)[i]);
155 char *p = (char *)lcd_base;
157 pwidth = ((panel_info.vl_col+7) >> 3);
158 for (y=0; y<panel_info.vl_row; y++) {
160 for (x=0; x<pwidth; x+=5) {
161 serial_putc_raw_dev (PSOC_PSC, (p[i+x+2]<<4 & 0xF0) | (p[i+x+3]>>4 & 0x0F));
162 serial_putc_raw_dev (PSOC_PSC, (p[i+x+3]<<4 & 0xF0) | (p[i+x+4]>>4 & 0x0F));
163 serial_putc_raw_dev (PSOC_PSC, (p[i+x+4]<<4 & 0xF0) | (p[i+x]>>4 & 0x0F));
164 serial_putc_raw_dev (PSOC_PSC, (p[i+x]<<4 & 0xF0) | (p[i+x+1]>>4 & 0x0F));
165 serial_putc_raw_dev (PSOC_PSC, (p[i+x+1]<<4 & 0xF0) | (p[i+x+2]>>4 & 0x0F));
172 serial_setrts_dev (PSOC_PSC, RTS_NEGATE);
173 for (retries = PSOC_RETRIES; retries; retries--) {
174 if (serial_getcts_dev(PSOC_PSC) == CTS_NEGATE)
176 udelay (PSOC_WAIT_TIME);
181 #ifdef CONFIG_PROGRESSBAR
183 void show_progress (int size, int tot)
191 cnt = ((LCD_WIDTH/FONT_WIDTH) * rc) / tot;
193 rc -= (cnt * tot) / (LCD_WIDTH/FONT_WIDTH);
195 for (i = 0; i < cnt; i++) {
200 lcd_enable(); /* MCC200-specific - send the framebuffer to PSoC */
206 int bmp_display(ulong addr, int x, int y)
209 bmp_image_t *bmp = (bmp_image_t *)addr;
212 printf("There is no valid bmp file at the given address\n");
216 ret = lcd_display_bitmap((ulong)bmp, x, y);
218 if ((unsigned long)bmp != addr)
224 #endif /* CONFIG_LCD */