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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
;
36 extern struct vidinfo panel_info
;
38 extern void lcd_ctrl_init (void *lcdbase
);
39 extern void lcd_enable (void);
40 extern int board_splash_screen_prepare(void);
42 /* setcolreg used in 8bpp/16bpp; initcolregs used in monochrome */
43 extern void lcd_setcolreg (ushort regno
,
44 ushort red
, ushort green
, ushort blue
);
45 extern void lcd_initcolregs (void);
47 extern int lcd_getfgcolor(void);
49 /* gunzip_bmp used if CONFIG_VIDEO_BMP_GZIP */
50 extern struct bmp_image
*gunzip_bmp(unsigned long addr
, unsigned long *lenp
);
51 extern int bmp_display(ulong addr
, int x
, int y
);
54 * Set whether we need to flush the dcache when changing the LCD image. This
57 * @param flush non-zero to flush cache after update, 0 to skip
59 void lcd_set_flush_dcache(int flush
);
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_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
93 defined CONFIG_CPU_MONAHANS
95 * PXA LCD DMA descriptor
97 struct pxafb_dma_descriptor
{
98 u_long fdadr
; /* Frame descriptor address register */
99 u_long fsadr
; /* Frame source address register */
100 u_long fidr
; /* Frame ID register */
101 u_long ldcmd
; /* Command register */
117 /* DMA descriptors */
118 struct pxafb_dma_descriptor
* dmadesc_fblow
;
119 struct pxafb_dma_descriptor
* dmadesc_fbhigh
;
120 struct pxafb_dma_descriptor
* dmadesc_palette
;
122 u_long screen
; /* physical address of frame buffer */
123 u_long palette
; /* physical address of palette memory */
128 * LCD controller stucture for PXA CPU
130 typedef struct vidinfo
{
131 ushort vl_col
; /* Number of columns (i.e. 640) */
132 ushort vl_row
; /* Number of rows (i.e. 480) */
133 ushort vl_width
; /* Width of display area in millimeters */
134 ushort vl_height
; /* Height of display area in millimeters */
136 /* LCD configuration register */
137 u_char vl_clkp
; /* Clock polarity */
138 u_char vl_oep
; /* Output Enable polarity */
139 u_char vl_hsp
; /* Horizontal Sync polarity */
140 u_char vl_vsp
; /* Vertical Sync polarity */
141 u_char vl_dp
; /* Data polarity */
142 u_char vl_bpix
; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */
143 u_char vl_lbw
; /* LCD Bus width, 0 = 4, 1 = 8 */
144 u_char vl_splt
; /* Split display, 0 = single-scan, 1 = dual-scan */
145 u_char vl_clor
; /* Color, 0 = mono, 1 = color */
146 u_char vl_tft
; /* 0 = passive, 1 = TFT */
148 /* Horizontal control register. Timing from data sheet */
149 ushort vl_hpw
; /* Horz sync pulse width */
150 u_char vl_blw
; /* Wait before of line */
151 u_char vl_elw
; /* Wait end of line */
153 /* Vertical control register. */
154 u_char vl_vpw
; /* Vertical sync pulse width */
155 u_char vl_bfw
; /* Wait before of frame */
156 u_char vl_efw
; /* Wait end of frame */
158 /* PXA LCD controller params */
159 struct pxafb_info pxa
;
162 #elif defined(CONFIG_ATMEL_LCD) || defined(CONFIG_ATMEL_HLCD)
164 typedef struct vidinfo
{
165 ushort vl_col
; /* Number of columns (i.e. 640) */
166 ushort vl_row
; /* Number of rows (i.e. 480) */
167 u_long vl_clk
; /* pixel clock in ps */
169 /* LCD configuration register */
170 u_long vl_sync
; /* Horizontal / vertical sync */
171 u_long vl_bpix
; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */
172 u_long vl_tft
; /* 0 = passive, 1 = TFT */
173 u_long vl_cont_pol_low
; /* contrast polarity is low */
174 u_long vl_clk_pol
; /* clock polarity */
176 /* Horizontal control register. */
177 u_long vl_hsync_len
; /* Length of horizontal sync */
178 u_long vl_left_margin
; /* Time from sync to picture */
179 u_long vl_right_margin
; /* Time from picture to sync */
181 /* Vertical control register. */
182 u_long vl_vsync_len
; /* Length of vertical sync */
183 u_long vl_upper_margin
; /* Time from sync to picture */
184 u_long vl_lower_margin
; /* Time from picture to sync */
186 u_long mmio
; /* Memory mapped registers */
189 #elif defined(CONFIG_EXYNOS_FB)
192 FIMD_RGB_INTERFACE
= 1,
193 FIMD_CPU_INTERFACE
= 2,
196 enum exynos_fb_rgb_mode_t
{
203 typedef struct vidinfo
{
204 ushort vl_col
; /* Number of columns (i.e. 640) */
205 ushort vl_row
; /* Number of rows (i.e. 480) */
206 ushort vl_width
; /* Width of display area in millimeters */
207 ushort vl_height
; /* Height of display area in millimeters */
209 /* LCD configuration register */
210 u_char vl_freq
; /* Frequency */
211 u_char vl_clkp
; /* Clock polarity */
212 u_char vl_oep
; /* Output Enable polarity */
213 u_char vl_hsp
; /* Horizontal Sync polarity */
214 u_char vl_vsp
; /* Vertical Sync polarity */
215 u_char vl_dp
; /* Data polarity */
216 u_char vl_bpix
; /* Bits per pixel */
218 /* Horizontal control register. Timing from data sheet */
219 u_char vl_hspw
; /* Horz sync pulse width */
220 u_char vl_hfpd
; /* Wait before of line */
221 u_char vl_hbpd
; /* Wait end of line */
223 /* Vertical control register. */
224 u_char vl_vspw
; /* Vertical sync pulse width */
225 u_char vl_vfpd
; /* Wait before of frame */
226 u_char vl_vbpd
; /* Wait end of frame */
227 u_char vl_cmd_allow_len
; /* Wait end of frame */
229 void (*cfg_gpio
)(void);
230 void (*backlight_on
)(unsigned int onoff
);
231 void (*reset_lcd
)(void);
232 void (*lcd_power_on
)(void);
233 void (*cfg_ldo
)(void);
234 void (*enable_ldo
)(unsigned int onoff
);
235 void (*mipi_power
)(void);
236 void (*backlight_reset
)(void);
239 unsigned int init_delay
;
240 unsigned int power_on_delay
;
241 unsigned int reset_delay
;
242 unsigned int interface_mode
;
243 unsigned int mipi_enabled
;
244 unsigned int dp_enabled
;
245 unsigned int cs_setup
;
246 unsigned int wr_setup
;
248 unsigned int wr_hold
;
249 unsigned int logo_on
;
250 unsigned int logo_width
;
251 unsigned int logo_height
;
252 unsigned long logo_addr
;
253 unsigned int rgb_mode
;
254 unsigned int resolution
;
256 /* parent clock name(MPLL, EPLL or VPLL) */
257 unsigned int pclk_name
;
258 /* ratio value for source clock from parent clock. */
259 unsigned int sclk_div
;
261 unsigned int dual_lcd_enabled
;
265 void init_panel_info(vidinfo_t
*vid
);
269 typedef struct vidinfo
{
270 ushort vl_col
; /* Number of columns (i.e. 160) */
271 ushort vl_row
; /* Number of rows (i.e. 100) */
273 u_char vl_bpix
; /* Bits per pixel, 0 = 1 */
275 ushort
*cmap
; /* Pointer to the colormap */
277 void *priv
; /* Pointer to driver-specific data */
280 #endif /* CONFIG_MPC823, CONFIG_CPU_PXA25X, CONFIG_MCC200, CONFIG_ATMEL_LCD */
282 extern vidinfo_t panel_info
;
284 /* Video functions */
286 #if defined(CONFIG_RBC823)
287 void lcd_disable (void);
291 /* int lcd_init (void *lcdbase); */
292 void lcd_putc (const char c
);
293 void lcd_puts (const char *s
);
294 void lcd_printf (const char *fmt
, ...);
295 void lcd_clear(void);
296 int lcd_display_bitmap(ulong bmp_image
, int x
, int y
);
299 * Get the width of the LCD in pixels
301 * @return width of LCD in pixels
303 int lcd_get_pixel_width(void);
306 * Get the height of the LCD in pixels
308 * @return height of LCD in pixels
310 int lcd_get_pixel_height(void);
313 * Get the number of text lines/rows on the LCD
315 * @return number of rows
317 int lcd_get_screen_rows(void);
320 * Get the number of text columns on the LCD
322 * @return number of columns
324 int lcd_get_screen_columns(void);
327 * Set the position of the text cursor
329 * @param col Column to place cursor (0 = left side)
330 * @param row Row to place cursor (0 = top line)
332 void lcd_position_cursor(unsigned col
, unsigned row
);
334 /* Allow boards to customize the information displayed */
335 void lcd_show_board_info(void);
337 /* Return the size of the LCD frame buffer, and the line length */
338 int lcd_get_size(int *line_length
);
340 /************************************************************************/
341 /* ** BITMAP DISPLAY SUPPORT */
342 /************************************************************************/
343 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
344 # include <bmp_layout.h>
345 # include <asm/byteorder.h>
349 * Information about displays we are using. This is for configuring
350 * the LCD controller and memory allocation. Someone has to know what
351 * is connected, as we can't autodetect anything.
353 #define CONFIG_SYS_HIGH 0 /* Pins are active high */
354 #define CONFIG_SYS_LOW 1 /* Pins are active low */
356 #define LCD_MONOCHROME 0
360 #define LCD_COLOR16 4
362 /*----------------------------------------------------------------------*/
363 #if defined(CONFIG_LCD_INFO_BELOW_LOGO)
364 # define LCD_INFO_X 0
365 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
366 #elif defined(CONFIG_LCD_LOGO)
367 # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
368 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
370 # define LCD_INFO_X (VIDEO_FONT_WIDTH)
371 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
374 /* Default to 8bpp if bit depth not specified */
376 # define LCD_BPP LCD_COLOR8
382 /* Calculate nr. of bits per pixel and nr. of colors */
383 #define NBITS(bit_code) (1 << (bit_code))
384 #define NCOLORS(bit_code) (1 << NBITS(bit_code))
386 /************************************************************************/
387 /* ** CONSOLE CONSTANTS */
388 /************************************************************************/
389 #if LCD_BPP == LCD_MONOCHROME
392 * Simple black/white definitions
394 # define CONSOLE_COLOR_BLACK 0
395 # define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */
397 #elif LCD_BPP == LCD_COLOR8
400 * 8bpp color definitions
402 # define CONSOLE_COLOR_BLACK 0
403 # define CONSOLE_COLOR_RED 1
404 # define CONSOLE_COLOR_GREEN 2
405 # define CONSOLE_COLOR_YELLOW 3
406 # define CONSOLE_COLOR_BLUE 4
407 # define CONSOLE_COLOR_MAGENTA 5
408 # define CONSOLE_COLOR_CYAN 6
409 # define CONSOLE_COLOR_GREY 14
410 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */
415 * 16bpp color definitions
417 # define CONSOLE_COLOR_BLACK 0x0000
418 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */
420 #endif /* color definitions */
422 /************************************************************************/
424 # define PAGE_SIZE 4096
427 /************************************************************************/
428 /* ** CONSOLE DEFINITIONS & FUNCTIONS */
429 /************************************************************************/
430 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
431 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
434 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT)
437 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH)
438 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length)
439 #define CONSOLE_ROW_FIRST (lcd_console_address)
440 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE)
441 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \
443 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
444 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
446 #if LCD_BPP == LCD_MONOCHROME
447 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \
448 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
449 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16)
450 # define COLOR_MASK(c) (c)
452 # error Unsupported LCD BPP.
455 /************************************************************************/