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Wolfgang Denkd4321d32006-08-30 23:09:00 +02001/*
2 * (C) Copyright 2006
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
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.
9 *
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.
14 *
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,
18 * MA 02111-1307 USA
19 */
20
21#include <common.h>
22#include <lcd.h>
23#include <mpc5xxx.h>
Nikita Kiryanovb4571182012-08-09 00:14:53 +000024#include <malloc.h>
Wolfgang Denkd4321d32006-08-30 23:09:00 +020025
26#ifdef CONFIG_LCD
27
Sergei Poselenov91904cd2007-02-27 12:40:16 +030028#undef SWAPPED_LCD /* For the previous h/w version */
Wolfgang Denkd4321d32006-08-30 23:09:00 +020029/*
30 * The name of the device used for communication
31 * with the PSoC.
32 */
33#define PSOC_PSC MPC5XXX_PSC2
Sergei Poselenov91904cd2007-02-27 12:40:16 +030034#define PSOC_BAUD 230400UL
Wolfgang Denkd4321d32006-08-30 23:09:00 +020035
36#define RTS_ASSERT 1
37#define RTS_NEGATE 0
38#define CTS_ASSERT 1
39#define CTS_NEGATE 0
40
41/*
42 * Dimensions in pixels
43 */
44#define LCD_WIDTH 160
45#define LCD_HEIGHT 100
46
47/*
48 * Dimensions in bytes
49 */
50#define LCD_BUF_SIZE ((LCD_WIDTH*LCD_HEIGHT)>>3)
51
52#if LCD_BPP != LCD_MONOCHROME
53#error "MCC200 support only monochrome displays (1 bpp)!"
54#endif
55
56#define PSOC_RETRIES 10 /* each of PSOC_WAIT_TIME */
57#define PSOC_WAIT_TIME 10 /* usec */
58
Che-Liang Chiou41132c02011-10-21 17:04:21 +080059#include <video_font.h>
60#define FONT_WIDTH VIDEO_FONT_WIDTH
61
Wolfgang Denkd4321d32006-08-30 23:09:00 +020062DECLARE_GLOBAL_DATA_PTR;
63
64/*
65 * LCD information
66 */
67vidinfo_t panel_info = {
68 LCD_WIDTH, LCD_HEIGHT, LCD_BPP
69};
70
Wolfgang Denkd4321d32006-08-30 23:09:00 +020071
72/*
73 * The device we use to communicate with PSoC
74 */
75int serial_inited = 0;
76
77/*
Wolfgang Denkd4321d32006-08-30 23:09:00 +020078 * Imported functions to support the PSoC protocol
79 */
80extern int serial_init_dev (unsigned long dev_base);
81extern void serial_setrts_dev (unsigned long dev_base, int s);
82extern int serial_getcts_dev (unsigned long dev_base);
83extern void serial_putc_raw_dev(unsigned long dev_base, const char c);
84
85/*
86 * Just stubs for our driver, needed for compiling compabilty with
87 * the common LCD driver code.
88 */
89void lcd_initcolregs (void)
90{
91}
92
93void lcd_ctrl_init (void *lcdbase)
94{
95}
96
97/*
98 * Function sends the contents of the frame-buffer to the LCD
99 */
100void lcd_enable (void)
101{
102 int i, retries, fb_size;
103
104 if (!serial_inited) {
105 unsigned long baud;
106
107 baud = gd->baudrate;
108 gd->baudrate = PSOC_BAUD;
109 serial_init_dev(PSOC_PSC);
110 gd->baudrate = baud;
111 serial_setrts_dev (PSOC_PSC, RTS_ASSERT);
112 serial_inited = 1;
113 }
114
115 /*
116 * Implement PSoC communication protocol:
117 * 1. Assert RTS, wait CTS assertion
118 * 2. Transmit data
119 * 3. Negate RTS, wait CTS negation
120 */
121
122 /* 1 */
123 serial_setrts_dev (PSOC_PSC, RTS_ASSERT);
124 for (retries = PSOC_RETRIES; retries; retries--) {
125 if (serial_getcts_dev(PSOC_PSC) == CTS_ASSERT)
126 break;
127 udelay (PSOC_WAIT_TIME);
128 }
129 if (!retries) {
130 printf ("%s Error: PSoC doesn't respond on "
131 "RTS ASSERT\n", __FUNCTION__);
132 }
133
134 /* 2 */
135 fb_size = panel_info.vl_row * (panel_info.vl_col >> 3);
136
137#if !defined(SWAPPED_LCD)
138 for (i=0; i<fb_size; i++) {
Jeroen Hofstee881c4ec2013-01-22 10:44:12 +0000139 serial_putc_raw_dev(PSOC_PSC, ((char *)gd->fb_base)[i]);
Wolfgang Denkd4321d32006-08-30 23:09:00 +0200140 }
141#else
142 {
143 int x, y, pwidth;
Jeroen Hofstee881c4ec2013-01-22 10:44:12 +0000144 char *p = (char *)gd->fb_base;
Wolfgang Denkd4321d32006-08-30 23:09:00 +0200145
146 pwidth = ((panel_info.vl_col+7) >> 3);
147 for (y=0; y<panel_info.vl_row; y++) {
148 i = y * pwidth;
149 for (x=0; x<pwidth; x+=5) {
150 serial_putc_raw_dev (PSOC_PSC, (p[i+x+2]<<4 & 0xF0) | (p[i+x+3]>>4 & 0x0F));
151 serial_putc_raw_dev (PSOC_PSC, (p[i+x+3]<<4 & 0xF0) | (p[i+x+4]>>4 & 0x0F));
152 serial_putc_raw_dev (PSOC_PSC, (p[i+x+4]<<4 & 0xF0) | (p[i+x]>>4 & 0x0F));
153 serial_putc_raw_dev (PSOC_PSC, (p[i+x]<<4 & 0xF0) | (p[i+x+1]>>4 & 0x0F));
154 serial_putc_raw_dev (PSOC_PSC, (p[i+x+1]<<4 & 0xF0) | (p[i+x+2]>>4 & 0x0F));
155 }
156 }
157 }
158#endif
159
160 /* 3 */
161 serial_setrts_dev (PSOC_PSC, RTS_NEGATE);
162 for (retries = PSOC_RETRIES; retries; retries--) {
163 if (serial_getcts_dev(PSOC_PSC) == CTS_NEGATE)
164 break;
165 udelay (PSOC_WAIT_TIME);
166 }
Wolfgang Denkd4321d32006-08-30 23:09:00 +0200167
168 return;
169}
Sergei Poselenov91904cd2007-02-27 12:40:16 +0300170#ifdef CONFIG_PROGRESSBAR
171
Sergei Poselenov91904cd2007-02-27 12:40:16 +0300172void show_progress (int size, int tot)
173{
174 int cnt;
175 int i;
176 static int rc = 0;
177
178 rc += size;
179
180 cnt = ((LCD_WIDTH/FONT_WIDTH) * rc) / tot;
181
182 rc -= (cnt * tot) / (LCD_WIDTH/FONT_WIDTH);
183
184 for (i = 0; i < cnt; i++) {
185 lcd_putc(0xdc);
186 }
187
188 if (cnt) {
189 lcd_enable(); /* MCC200-specific - send the framebuffer to PSoC */
190 }
191}
192
193#endif
Nikita Kiryanovb4571182012-08-09 00:14:53 +0000194
195int bmp_display(ulong addr, int x, int y)
196{
197 int ret;
198 bmp_image_t *bmp = (bmp_image_t *)addr;
199
200 if (!bmp) {
201 printf("There is no valid bmp file at the given address\n");
202 return 1;
203 }
204
205 ret = lcd_display_bitmap((ulong)bmp, x, y);
206
207 if ((unsigned long)bmp != addr)
208 free(bmp);
209
210 return ret;
211}
212
Wolfgang Denkd4321d32006-08-30 23:09:00 +0200213#endif /* CONFIG_LCD */