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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;
Stelian Pop39cf4802008-05-09 21:57:18 +0200158
159#elif defined(CONFIG_ATMEL_LCD)
160
161typedef struct vidinfo {
162 u_long vl_col; /* Number of columns (i.e. 640) */
163 u_long vl_row; /* Number of rows (i.e. 480) */
164 u_long vl_clk; /* pixel clock in ps */
165
166 /* LCD configuration register */
167 u_long vl_sync; /* Horizontal / vertical sync */
168 u_long vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */
169 u_long vl_tft; /* 0 = passive, 1 = TFT */
170
171 /* Horizontal control register. */
172 u_long vl_hsync_len; /* Length of horizontal sync */
173 u_long vl_left_margin; /* Time from sync to picture */
174 u_long vl_right_margin; /* Time from picture to sync */
175
176 /* Vertical control register. */
177 u_long vl_vsync_len; /* Length of vertical sync */
178 u_long vl_upper_margin; /* Time from sync to picture */
179 u_long vl_lower_margin; /* Time from picture to sync */
180
181 u_long mmio; /* Memory mapped registers */
182} vidinfo_t;
183
184extern vidinfo_t panel_info;
185
186#endif /* CONFIG_MPC823, CONFIG_PXA250 or CONFIG_MCC200 or CONFIG_ATMEL_LCD */
wdenk8655b6f2004-10-09 23:25:58 +0000187
wdenkfe8c2802002-11-03 00:38:21 +0000188/* Video functions */
189
wdenk8655b6f2004-10-09 23:25:58 +0000190#if defined(CONFIG_RBC823)
191void lcd_disable (void);
192#endif
193
194
wdenkc3f4d172004-06-25 23:35:58 +0000195/* int lcd_init (void *lcdbase); */
wdenkfe8c2802002-11-03 00:38:21 +0000196void lcd_putc (const char c);
197void lcd_puts (const char *s);
198void lcd_printf (const char *fmt, ...);
199
Haavard Skinnemoen6b59e032008-09-01 16:21:22 +0200200/* Allow boards to customize the information displayed */
201void lcd_show_board_info(void);
wdenk8655b6f2004-10-09 23:25:58 +0000202
203/************************************************************************/
204/* ** BITMAP DISPLAY SUPPORT */
205/************************************************************************/
Jon Loeliger639221c2007-07-09 17:15:49 -0500206#if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
wdenk8655b6f2004-10-09 23:25:58 +0000207# include <bmp_layout.h>
208# include <asm/byteorder.h>
Jon Loeliger639221c2007-07-09 17:15:49 -0500209#endif
wdenk8655b6f2004-10-09 23:25:58 +0000210
wdenk8655b6f2004-10-09 23:25:58 +0000211/*
212 * Information about displays we are using. This is for configuring
213 * the LCD controller and memory allocation. Someone has to know what
214 * is connected, as we can't autodetect anything.
215 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200216#define CONFIG_SYS_HIGH 0 /* Pins are active high */
217#define CONFIG_SYS_LOW 1 /* Pins are active low */
wdenk8655b6f2004-10-09 23:25:58 +0000218
219#define LCD_MONOCHROME 0
220#define LCD_COLOR2 1
221#define LCD_COLOR4 2
222#define LCD_COLOR8 3
223#define LCD_COLOR16 4
224
225/*----------------------------------------------------------------------*/
wdenk88804d12005-07-04 00:03:16 +0000226#if defined(CONFIG_LCD_INFO_BELOW_LOGO)
wdenk8655b6f2004-10-09 23:25:58 +0000227# define LCD_INFO_X 0
228# define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
229#elif defined(CONFIG_LCD_LOGO)
230# define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
231# define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
232#else
233# define LCD_INFO_X (VIDEO_FONT_WIDTH)
234# define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
235#endif
236
237/* Default to 8bpp if bit depth not specified */
238#ifndef LCD_BPP
239# define LCD_BPP LCD_COLOR8
240#endif
241#ifndef LCD_DF
242# define LCD_DF 1
243#endif
244
245/* Calculate nr. of bits per pixel and nr. of colors */
246#define NBITS(bit_code) (1 << (bit_code))
247#define NCOLORS(bit_code) (1 << NBITS(bit_code))
248
249/************************************************************************/
250/* ** CONSOLE CONSTANTS */
251/************************************************************************/
252#if LCD_BPP == LCD_MONOCHROME
253
254/*
255 * Simple black/white definitions
256 */
257# define CONSOLE_COLOR_BLACK 0
258# define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */
259
260#elif LCD_BPP == LCD_COLOR8
261
262/*
263 * 8bpp color definitions
264 */
265# define CONSOLE_COLOR_BLACK 0
266# define CONSOLE_COLOR_RED 1
267# define CONSOLE_COLOR_GREEN 2
268# define CONSOLE_COLOR_YELLOW 3
269# define CONSOLE_COLOR_BLUE 4
270# define CONSOLE_COLOR_MAGENTA 5
271# define CONSOLE_COLOR_CYAN 6
272# define CONSOLE_COLOR_GREY 14
273# define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */
274
275#else
276
277/*
278 * 16bpp color definitions
279 */
280# define CONSOLE_COLOR_BLACK 0x0000
281# define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */
282
283#endif /* color definitions */
284
wdenk8655b6f2004-10-09 23:25:58 +0000285/************************************************************************/
286#ifndef PAGE_SIZE
287# define PAGE_SIZE 4096
288#endif
289
290/************************************************************************/
291/* ** CONSOLE DEFINITIONS & FUNCTIONS */
292/************************************************************************/
wdenk88804d12005-07-04 00:03:16 +0000293#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
wdenk8655b6f2004-10-09 23:25:58 +0000294# define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
295 / VIDEO_FONT_HEIGHT)
296#else
297# define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT)
298#endif
299
300#define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH)
301#define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length)
302#define CONSOLE_ROW_FIRST (lcd_console_address)
303#define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE)
304#define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \
305 - CONSOLE_ROW_SIZE)
306#define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
307#define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
308
309#if LCD_BPP == LCD_MONOCHROME
310# define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \
311 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
312#elif LCD_BPP == LCD_COLOR8
313# define COLOR_MASK(c) (c)
314#else
315# error Unsupported LCD BPP.
316#endif
317
318/************************************************************************/
319
320#endif /* _LCD_H_ */