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wdenkfe8c2802002-11-03 00:38:21 +00001/*
wdenk8655b6f2004-10-09 23:25:58 +00002 * MPC823 and PXA LCD Controller
wdenkfe8c2802002-11-03 00:38:21 +00003 *
4 * Modeled after video interface by Paolo Scaffardi
5 *
6 *
7 * (C) Copyright 2001
8 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
9 *
10 * See file CREDITS for list of people who contributed to this
11 * project.
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License as
15 * published by the Free Software Foundation; either version 2 of
16 * the License, or (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wdenk8655b6f2004-10-09 23:25:58 +000020 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wdenkfe8c2802002-11-03 00:38:21 +000021 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 * MA 02111-1307 USA
27 */
28
29#ifndef _LCD_H_
30#define _LCD_H_
31
wdenk682011f2003-06-03 23:54:09 +000032extern char lcd_is_enabled;
33
wdenk8655b6f2004-10-09 23:25:58 +000034extern int lcd_line_length;
35extern int lcd_color_fg;
36extern int lcd_color_bg;
37
38/*
39 * Frame buffer memory information
40 */
41extern void *lcd_base; /* Start of framebuffer memory */
42extern void *lcd_console_address; /* Start of console buffer */
43
44extern short console_col;
45extern short console_row;
46
47#if defined CONFIG_MPC823
48/*
49 * LCD controller stucture for MPC823 CPU
50 */
51typedef struct vidinfo {
52 ushort vl_col; /* Number of columns (i.e. 640) */
53 ushort vl_row; /* Number of rows (i.e. 480) */
54 ushort vl_width; /* Width of display area in millimeters */
55 ushort vl_height; /* Height of display area in millimeters */
56
57 /* LCD configuration register */
58 u_char vl_clkp; /* Clock polarity */
59 u_char vl_oep; /* Output Enable polarity */
60 u_char vl_hsp; /* Horizontal Sync polarity */
61 u_char vl_vsp; /* Vertical Sync polarity */
62 u_char vl_dp; /* Data polarity */
63 u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8 */
64 u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */
65 u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */
66 u_char vl_clor; /* Color, 0 = mono, 1 = color */
67 u_char vl_tft; /* 0 = passive, 1 = TFT */
68
69 /* Horizontal control register. Timing from data sheet */
70 ushort vl_wbl; /* Wait between lines */
71
72 /* Vertical control register */
73 u_char vl_vpw; /* Vertical sync pulse width */
74 u_char vl_lcdac; /* LCD AC timing */
75 u_char vl_wbf; /* Wait between frames */
76} vidinfo_t;
77
78extern vidinfo_t panel_info;
79
80#elif defined CONFIG_PXA250
81/*
82 * PXA LCD DMA descriptor
83 */
84struct pxafb_dma_descriptor {
85 u_long fdadr; /* Frame descriptor address register */
86 u_long fsadr; /* Frame source address register */
87 u_long fidr; /* Frame ID register */
88 u_long ldcmd; /* Command register */
89};
90
91/*
92 * PXA LCD info
93 */
94struct pxafb_info {
95
96 /* Misc registers */
97 u_long reg_lccr3;
98 u_long reg_lccr2;
99 u_long reg_lccr1;
100 u_long reg_lccr0;
101 u_long fdadr0;
102 u_long fdadr1;
103
104 /* DMA descriptors */
105 struct pxafb_dma_descriptor * dmadesc_fblow;
106 struct pxafb_dma_descriptor * dmadesc_fbhigh;
107 struct pxafb_dma_descriptor * dmadesc_palette;
108
109 u_long screen; /* physical address of frame buffer */
110 u_long palette; /* physical address of palette memory */
111 u_int palette_size;
112};
113
114/*
115 * LCD controller stucture for PXA CPU
116 */
117typedef struct vidinfo {
118 ushort vl_col; /* Number of columns (i.e. 640) */
119 ushort vl_row; /* Number of rows (i.e. 480) */
120 ushort vl_width; /* Width of display area in millimeters */
121 ushort vl_height; /* Height of display area in millimeters */
122
123 /* LCD configuration register */
124 u_char vl_clkp; /* Clock polarity */
125 u_char vl_oep; /* Output Enable polarity */
126 u_char vl_hsp; /* Horizontal Sync polarity */
127 u_char vl_vsp; /* Vertical Sync polarity */
128 u_char vl_dp; /* Data polarity */
129 u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */
130 u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */
131 u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */
132 u_char vl_clor; /* Color, 0 = mono, 1 = color */
133 u_char vl_tft; /* 0 = passive, 1 = TFT */
134
135 /* Horizontal control register. Timing from data sheet */
136 ushort vl_hpw; /* Horz sync pulse width */
137 u_char vl_blw; /* Wait before of line */
138 u_char vl_elw; /* Wait end of line */
139
140 /* Vertical control register. */
141 u_char vl_vpw; /* Vertical sync pulse width */
142 u_char vl_bfw; /* Wait before of frame */
143 u_char vl_efw; /* Wait end of frame */
144
145 /* PXA LCD controller params */
146 struct pxafb_info pxa;
147} vidinfo_t;
148
149extern vidinfo_t panel_info;
150
Wolfgang Denke8143e72006-08-30 23:09:00 +0200151#elif defined(CONFIG_MCC200)
152typedef struct vidinfo {
153 ushort vl_col; /* Number of columns (i.e. 160) */
154 ushort vl_row; /* Number of rows (i.e. 100) */
155
156 u_char vl_bpix; /* Bits per pixel, 0 = 1 */
157} vidinfo_t;
158#endif /* CONFIG_MPC823, CONFIG_PXA250 or CONFIG_MCC200 */
wdenk8655b6f2004-10-09 23:25:58 +0000159
wdenkfe8c2802002-11-03 00:38:21 +0000160/* Video functions */
161
wdenk8655b6f2004-10-09 23:25:58 +0000162#if defined(CONFIG_RBC823)
163void lcd_disable (void);
164#endif
165
166
wdenkc3f4d172004-06-25 23:35:58 +0000167/* int lcd_init (void *lcdbase); */
wdenkfe8c2802002-11-03 00:38:21 +0000168void lcd_putc (const char c);
169void lcd_puts (const char *s);
170void lcd_printf (const char *fmt, ...);
171
wdenk8655b6f2004-10-09 23:25:58 +0000172
173/************************************************************************/
174/* ** BITMAP DISPLAY SUPPORT */
175/************************************************************************/
176#if (CONFIG_COMMANDS & CFG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
177# include <bmp_layout.h>
178# include <asm/byteorder.h>
179#endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) || CONFIG_SPLASH_SCREEN */
180
wdenk8655b6f2004-10-09 23:25:58 +0000181/*
182 * Information about displays we are using. This is for configuring
183 * the LCD controller and memory allocation. Someone has to know what
184 * is connected, as we can't autodetect anything.
185 */
186#define CFG_HIGH 0 /* Pins are active high */
187#define CFG_LOW 1 /* Pins are active low */
188
189#define LCD_MONOCHROME 0
190#define LCD_COLOR2 1
191#define LCD_COLOR4 2
192#define LCD_COLOR8 3
193#define LCD_COLOR16 4
194
195/*----------------------------------------------------------------------*/
wdenk88804d12005-07-04 00:03:16 +0000196#if defined(CONFIG_LCD_INFO_BELOW_LOGO)
wdenk8655b6f2004-10-09 23:25:58 +0000197# define LCD_INFO_X 0
198# define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
199#elif defined(CONFIG_LCD_LOGO)
200# define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
201# define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
202#else
203# define LCD_INFO_X (VIDEO_FONT_WIDTH)
204# define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
205#endif
206
207/* Default to 8bpp if bit depth not specified */
208#ifndef LCD_BPP
209# define LCD_BPP LCD_COLOR8
210#endif
211#ifndef LCD_DF
212# define LCD_DF 1
213#endif
214
215/* Calculate nr. of bits per pixel and nr. of colors */
216#define NBITS(bit_code) (1 << (bit_code))
217#define NCOLORS(bit_code) (1 << NBITS(bit_code))
218
219/************************************************************************/
220/* ** CONSOLE CONSTANTS */
221/************************************************************************/
222#if LCD_BPP == LCD_MONOCHROME
223
224/*
225 * Simple black/white definitions
226 */
227# define CONSOLE_COLOR_BLACK 0
228# define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */
229
230#elif LCD_BPP == LCD_COLOR8
231
232/*
233 * 8bpp color definitions
234 */
235# define CONSOLE_COLOR_BLACK 0
236# define CONSOLE_COLOR_RED 1
237# define CONSOLE_COLOR_GREEN 2
238# define CONSOLE_COLOR_YELLOW 3
239# define CONSOLE_COLOR_BLUE 4
240# define CONSOLE_COLOR_MAGENTA 5
241# define CONSOLE_COLOR_CYAN 6
242# define CONSOLE_COLOR_GREY 14
243# define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */
244
245#else
246
247/*
248 * 16bpp color definitions
249 */
250# define CONSOLE_COLOR_BLACK 0x0000
251# define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */
252
253#endif /* color definitions */
254
wdenk8655b6f2004-10-09 23:25:58 +0000255/************************************************************************/
256#ifndef PAGE_SIZE
257# define PAGE_SIZE 4096
258#endif
259
260/************************************************************************/
261/* ** CONSOLE DEFINITIONS & FUNCTIONS */
262/************************************************************************/
wdenk88804d12005-07-04 00:03:16 +0000263#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
wdenk8655b6f2004-10-09 23:25:58 +0000264# define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
265 / VIDEO_FONT_HEIGHT)
266#else
267# define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT)
268#endif
269
270#define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH)
271#define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length)
272#define CONSOLE_ROW_FIRST (lcd_console_address)
273#define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE)
274#define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \
275 - CONSOLE_ROW_SIZE)
276#define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
277#define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
278
279#if LCD_BPP == LCD_MONOCHROME
280# define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \
281 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
282#elif LCD_BPP == LCD_COLOR8
283# define COLOR_MASK(c) (c)
284#else
285# error Unsupported LCD BPP.
286#endif
287
288/************************************************************************/
289
290#endif /* _LCD_H_ */