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git.ipfire.org Git - people/ms/u-boot.git/blob - include/lcd.h
2 * MPC823 and PXA LCD Controller
4 * Modeled after video interface by Paolo Scaffardi
8 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
10 * See file CREDITS for list of people who contributed to this
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.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
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,
32 extern char lcd_is_enabled
;
34 extern int lcd_line_length
;
35 extern int lcd_color_fg
;
36 extern int lcd_color_bg
;
39 * Frame buffer memory information
41 extern void *lcd_base
; /* Start of framebuffer memory */
42 extern void *lcd_console_address
; /* Start of console buffer */
44 extern short console_col
;
45 extern short console_row
;
47 #if defined CONFIG_MPC823
49 * LCD controller stucture for MPC823 CPU
51 typedef 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 */
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 */
69 /* Horizontal control register. Timing from data sheet */
70 ushort vl_wbl
; /* Wait between lines */
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 */
78 extern vidinfo_t panel_info
;
80 #elif defined CONFIG_PXA250
82 * PXA LCD DMA descriptor
84 struct 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 */
104 /* DMA descriptors */
105 struct pxafb_dma_descriptor
* dmadesc_fblow
;
106 struct pxafb_dma_descriptor
* dmadesc_fbhigh
;
107 struct pxafb_dma_descriptor
* dmadesc_palette
;
109 u_long screen
; /* physical address of frame buffer */
110 u_long palette
; /* physical address of palette memory */
115 * LCD controller stucture for PXA CPU
117 typedef 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 */
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 */
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 */
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 */
145 /* PXA LCD controller params */
146 struct pxafb_info pxa
;
149 extern vidinfo_t panel_info
;
151 #elif defined(CONFIG_MCC200)
152 typedef struct vidinfo
{
153 ushort vl_col
; /* Number of columns (i.e. 160) */
154 ushort vl_row
; /* Number of rows (i.e. 100) */
156 u_char vl_bpix
; /* Bits per pixel, 0 = 1 */
159 #elif defined(CONFIG_ATMEL_LCD)
161 typedef 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 */
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 */
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 */
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 */
181 u_long mmio
; /* Memory mapped registers */
184 extern vidinfo_t panel_info
;
186 #endif /* CONFIG_MPC823, CONFIG_PXA250 or CONFIG_MCC200 or CONFIG_ATMEL_LCD */
188 /* Video functions */
190 #if defined(CONFIG_RBC823)
191 void lcd_disable (void);
195 /* int lcd_init (void *lcdbase); */
196 void lcd_putc (const char c
);
197 void lcd_puts (const char *s
);
198 void lcd_printf (const char *fmt
, ...);
201 /************************************************************************/
202 /* ** BITMAP DISPLAY SUPPORT */
203 /************************************************************************/
204 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
205 # include <bmp_layout.h>
206 # include <asm/byteorder.h>
210 * Information about displays we are using. This is for configuring
211 * the LCD controller and memory allocation. Someone has to know what
212 * is connected, as we can't autodetect anything.
214 #define CONFIG_SYS_HIGH 0 /* Pins are active high */
215 #define CONFIG_SYS_LOW 1 /* Pins are active low */
217 #define LCD_MONOCHROME 0
221 #define LCD_COLOR16 4
223 /*----------------------------------------------------------------------*/
224 #if defined(CONFIG_LCD_INFO_BELOW_LOGO)
225 # define LCD_INFO_X 0
226 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
227 #elif defined(CONFIG_LCD_LOGO)
228 # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
229 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
231 # define LCD_INFO_X (VIDEO_FONT_WIDTH)
232 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
235 /* Default to 8bpp if bit depth not specified */
237 # define LCD_BPP LCD_COLOR8
243 /* Calculate nr. of bits per pixel and nr. of colors */
244 #define NBITS(bit_code) (1 << (bit_code))
245 #define NCOLORS(bit_code) (1 << NBITS(bit_code))
247 /************************************************************************/
248 /* ** CONSOLE CONSTANTS */
249 /************************************************************************/
250 #if LCD_BPP == LCD_MONOCHROME
253 * Simple black/white definitions
255 # define CONSOLE_COLOR_BLACK 0
256 # define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */
258 #elif LCD_BPP == LCD_COLOR8
261 * 8bpp color definitions
263 # define CONSOLE_COLOR_BLACK 0
264 # define CONSOLE_COLOR_RED 1
265 # define CONSOLE_COLOR_GREEN 2
266 # define CONSOLE_COLOR_YELLOW 3
267 # define CONSOLE_COLOR_BLUE 4
268 # define CONSOLE_COLOR_MAGENTA 5
269 # define CONSOLE_COLOR_CYAN 6
270 # define CONSOLE_COLOR_GREY 14
271 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */
276 * 16bpp color definitions
278 # define CONSOLE_COLOR_BLACK 0x0000
279 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */
281 #endif /* color definitions */
283 /************************************************************************/
285 # define PAGE_SIZE 4096
288 /************************************************************************/
289 /* ** CONSOLE DEFINITIONS & FUNCTIONS */
290 /************************************************************************/
291 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
292 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
295 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT)
298 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH)
299 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length)
300 #define CONSOLE_ROW_FIRST (lcd_console_address)
301 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE)
302 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \
304 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
305 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
307 #if LCD_BPP == LCD_MONOCHROME
308 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \
309 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
310 #elif LCD_BPP == LCD_COLOR8
311 # define COLOR_MASK(c) (c)
313 # error Unsupported LCD BPP.
316 /************************************************************************/