2 * Copyright (C) 2004-2010 Freescale Semiconductor, Inc.
4 * MPC823 and PXA LCD Controller
6 * Modeled after video interface by Paolo Scaffardi
10 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
12 * See file CREDITS for list of people who contributed to this
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License as
17 * published by the Free Software Foundation; either version 2 of
18 * the License, or (at your option) any later version.
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
34 extern char lcd_is_enabled;
36 extern int lcd_line_length;
37 extern int lcd_color_fg;
38 extern int lcd_color_bg;
41 * Frame buffer memory information
43 extern void *lcd_base; /* Start of framebuffer memory */
44 extern void *lcd_console_address; /* Start of console buffer */
46 extern short console_col;
47 extern short console_row;
48 extern struct vidinfo panel_info;
50 extern void lcd_ctrl_init (void *lcdbase);
51 extern void lcd_enable (void);
53 /* setcolreg used in 8bpp/16bpp; initcolregs used in monochrome */
54 extern void lcd_setcolreg (ushort regno,
55 ushort red, ushort green, ushort blue);
56 extern void lcd_initcolregs (void);
58 /* gunzip_bmp used if CONFIG_VIDEO_BMP_GZIP */
59 extern struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp);
61 #if defined CONFIG_MPC823
63 * LCD controller stucture for MPC823 CPU
65 typedef struct vidinfo {
66 ushort vl_col; /* Number of columns (i.e. 640) */
67 ushort vl_row; /* Number of rows (i.e. 480) */
68 ushort vl_width; /* Width of display area in millimeters */
69 ushort vl_height; /* Height of display area in millimeters */
71 /* LCD configuration register */
72 u_char vl_clkp; /* Clock polarity */
73 u_char vl_oep; /* Output Enable polarity */
74 u_char vl_hsp; /* Horizontal Sync polarity */
75 u_char vl_vsp; /* Vertical Sync polarity */
76 u_char vl_dp; /* Data polarity */
77 u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8 */
78 u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */
79 u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */
80 u_char vl_clor; /* Color, 0 = mono, 1 = color */
81 u_char vl_tft; /* 0 = passive, 1 = TFT */
83 /* Horizontal control register. Timing from data sheet */
84 ushort vl_wbl; /* Wait between lines */
86 /* Vertical control register */
87 u_char vl_vpw; /* Vertical sync pulse width */
88 u_char vl_lcdac; /* LCD AC timing */
89 u_char vl_wbf; /* Wait between frames */
92 #elif defined CONFIG_PXA250
94 * PXA LCD DMA descriptor
96 struct pxafb_dma_descriptor {
97 u_long fdadr; /* Frame descriptor address register */
98 u_long fsadr; /* Frame source address register */
99 u_long fidr; /* Frame ID register */
100 u_long ldcmd; /* Command register */
116 /* DMA descriptors */
117 struct pxafb_dma_descriptor * dmadesc_fblow;
118 struct pxafb_dma_descriptor * dmadesc_fbhigh;
119 struct pxafb_dma_descriptor * dmadesc_palette;
121 u_long screen; /* physical address of frame buffer */
122 u_long palette; /* physical address of palette memory */
127 * LCD controller stucture for PXA CPU
129 typedef struct vidinfo {
130 ushort vl_col; /* Number of columns (i.e. 640) */
131 ushort vl_row; /* Number of rows (i.e. 480) */
132 ushort vl_width; /* Width of display area in millimeters */
133 ushort vl_height; /* Height of display area in millimeters */
135 /* LCD configuration register */
136 u_char vl_clkp; /* Clock polarity */
137 u_char vl_oep; /* Output Enable polarity */
138 u_char vl_hsp; /* Horizontal Sync polarity */
139 u_char vl_vsp; /* Vertical Sync polarity */
140 u_char vl_dp; /* Data polarity */
141 u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */
142 u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */
143 u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */
144 u_char vl_clor; /* Color, 0 = mono, 1 = color */
145 u_char vl_tft; /* 0 = passive, 1 = TFT */
147 /* Horizontal control register. Timing from data sheet */
148 ushort vl_hpw; /* Horz sync pulse width */
149 u_char vl_blw; /* Wait before of line */
150 u_char vl_elw; /* Wait end of line */
152 /* Vertical control register. */
153 u_char vl_vpw; /* Vertical sync pulse width */
154 u_char vl_bfw; /* Wait before of frame */
155 u_char vl_efw; /* Wait end of frame */
157 /* PXA LCD controller params */
158 struct pxafb_info pxa;
161 #elif defined(CONFIG_ATMEL_LCD)
163 typedef struct vidinfo {
164 u_long vl_col; /* Number of columns (i.e. 640) */
165 u_long vl_row; /* Number of rows (i.e. 480) */
166 u_long vl_clk; /* pixel clock in ps */
168 /* LCD configuration register */
169 u_long vl_sync; /* Horizontal / vertical sync */
170 u_long vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */
171 u_long vl_tft; /* 0 = passive, 1 = TFT */
173 /* Horizontal control register. */
174 u_long vl_hsync_len; /* Length of horizontal sync */
175 u_long vl_left_margin; /* Time from sync to picture */
176 u_long vl_right_margin; /* Time from picture to sync */
178 /* Vertical control register. */
179 u_long vl_vsync_len; /* Length of vertical sync */
180 u_long vl_upper_margin; /* Time from sync to picture */
181 u_long vl_lower_margin; /* Time from picture to sync */
183 u_long mmio; /* Memory mapped registers */
186 #elif defined(CONFIG_MXC2_LCD)
188 typedef struct vidinfo {
189 u_long vl_refresh; /* Refresh Rate Hz */
190 u_long vl_row; /* resolution in x */
191 u_long vl_col; /* resolution in y */
192 u_long vl_pixclock; /* pixel clock in picoseconds */
193 u_long vl_left_margin; /* Horizontal back porch */
194 u_long vl_right_margin; /* Horizontal front porch */
195 u_long vl_upper_margin; /* Vertical back porch */
196 u_long vl_lower_margin; /* Vertical front porch */
197 u_long vl_hsync; /* Horizontal sync pulse length */
198 u_long vl_vsync; /* Vertical sync pulse length */
199 u_long vl_sync; /* Polarity on data enable */
200 u_long vl_mode; /* Video Mode */
206 #elif defined(CONFIG_MXC_EPDC)
208 struct waveform_modes {
217 struct epdc_data_struct {
218 /* EPDC buffer pointers */
219 u_long working_buf_addr;
220 u_long waveform_buf_addr;
222 /* Waveform mode definitions */
223 struct waveform_modes wv_modes;
226 typedef struct vidinfo {
227 u_long vl_refresh; /* Refresh Rate Hz */
228 u_long vl_row; /* resolution in x */
229 u_long vl_col; /* resolution in y */
230 u_long vl_pixclock; /* pixel clock in picoseconds */
231 u_long vl_left_margin; /* Horizontal back porch */
232 u_long vl_right_margin; /* Horizontal front porch */
233 u_long vl_upper_margin; /* Vertical back porch */
234 u_long vl_lower_margin; /* Vertical front porch */
235 u_long vl_hsync; /* Horizontal sync pulse length */
236 u_long vl_vsync; /* Vertical sync pulse length */
237 u_long vl_sync; /* Polarity on data enable */
238 u_long vl_mode; /* Video Mode */
242 struct epdc_data_struct epdc_data;
247 typedef struct vidinfo {
248 ushort vl_col; /* Number of columns (i.e. 160) */
249 ushort vl_row; /* Number of rows (i.e. 100) */
251 u_char vl_bpix; /* Bits per pixel, 0 = 1 */
253 ushort *cmap; /* Pointer to the colormap */
255 void *priv; /* Pointer to driver-specific data */
258 #endif /* CONFIG_MPC823, CONFIG_PXA250 or CONFIG_MCC200 or CONFIG_ATMEL_LCD */
260 extern vidinfo_t panel_info;
262 /* Video functions */
264 #if defined(CONFIG_RBC823)
265 void lcd_disable (void);
269 /* int lcd_init (void *lcdbase); */
270 void lcd_putc (const char c);
271 void lcd_puts (const char *s);
272 void lcd_printf (const char *fmt, ...);
274 /* Allow boards to customize the information displayed */
275 void lcd_show_board_info(void);
277 /************************************************************************/
278 /* ** BITMAP DISPLAY SUPPORT */
279 /************************************************************************/
280 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
281 # include <bmp_layout.h>
282 # include <asm/byteorder.h>
286 * Information about displays we are using. This is for configuring
287 * the LCD controller and memory allocation. Someone has to know what
288 * is connected, as we can't autodetect anything.
290 #define CONFIG_SYS_HIGH 0 /* Pins are active high */
291 #define CONFIG_SYS_LOW 1 /* Pins are active low */
293 #define LCD_MONOCHROME 0
297 #define LCD_COLOR16 4
299 /*----------------------------------------------------------------------*/
300 #if defined(CONFIG_LCD_INFO_BELOW_LOGO)
301 # define LCD_INFO_X 0
302 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
303 #elif defined(CONFIG_LCD_LOGO)
304 # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
305 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
307 # define LCD_INFO_X (VIDEO_FONT_WIDTH)
308 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
311 /* Default to 8bpp if bit depth not specified */
313 # define LCD_BPP LCD_COLOR8
319 /* Calculate nr. of bits per pixel and nr. of colors */
320 #define NBITS(bit_code) (1 << (bit_code))
321 #define NCOLORS(bit_code) (1 << NBITS(bit_code))
323 /************************************************************************/
324 /* ** CONSOLE CONSTANTS */
325 /************************************************************************/
326 #if LCD_BPP == LCD_MONOCHROME
329 * Simple black/white definitions
331 # define CONSOLE_COLOR_BLACK 0
332 # define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */
334 #elif LCD_BPP == LCD_COLOR8
337 * 8bpp color definitions
339 # define CONSOLE_COLOR_BLACK 0
340 # define CONSOLE_COLOR_RED 1
341 # define CONSOLE_COLOR_GREEN 2
342 # define CONSOLE_COLOR_YELLOW 3
343 # define CONSOLE_COLOR_BLUE 4
344 # define CONSOLE_COLOR_MAGENTA 5
345 # define CONSOLE_COLOR_CYAN 6
346 # define CONSOLE_COLOR_GREY 14
347 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */
352 * 16bpp color definitions
354 # define CONSOLE_COLOR_BLACK 0x0000
355 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */
357 #endif /* color definitions */
359 /************************************************************************/
361 # define PAGE_SIZE 4096
364 /************************************************************************/
365 /* ** CONSOLE DEFINITIONS & FUNCTIONS */
366 /************************************************************************/
367 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
368 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
371 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT)
374 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH)
375 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length)
376 #define CONSOLE_ROW_FIRST (lcd_console_address)
377 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE)
378 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \
380 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
381 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
383 #if LCD_BPP == LCD_MONOCHROME
384 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \
385 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
386 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16)
387 # define COLOR_MASK(c) (c)
389 # error Unsupported LCD BPP.
392 /************************************************************************/