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git.ipfire.org Git - thirdparty/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 void lcd_ctrl_init(void *lcdbase
);
39 void lcd_enable(void);
41 /* setcolreg used in 8bpp/16bpp; initcolregs used in monochrome */
42 void lcd_setcolreg(ushort regno
, ushort red
, ushort green
, ushort blue
);
43 void lcd_initcolregs(void);
45 int lcd_getfgcolor(void);
47 /* gunzip_bmp used if CONFIG_VIDEO_BMP_GZIP */
48 struct bmp_image
*gunzip_bmp(unsigned long addr
, unsigned long *lenp
,
50 int bmp_display(ulong addr
, int x
, int y
);
53 * Set whether we need to flush the dcache when changing the LCD image. This
56 * @param flush non-zero to flush cache after update, 0 to skip
58 void lcd_set_flush_dcache(int flush
);
60 #if defined CONFIG_MPC823
62 * LCD controller stucture for MPC823 CPU
64 typedef struct vidinfo
{
65 ushort vl_col
; /* Number of columns (i.e. 640) */
66 ushort vl_row
; /* Number of rows (i.e. 480) */
67 ushort vl_width
; /* Width of display area in millimeters */
68 ushort vl_height
; /* Height of display area in millimeters */
70 /* LCD configuration register */
71 u_char vl_clkp
; /* Clock polarity */
72 u_char vl_oep
; /* Output Enable polarity */
73 u_char vl_hsp
; /* Horizontal Sync polarity */
74 u_char vl_vsp
; /* Vertical Sync polarity */
75 u_char vl_dp
; /* Data polarity */
76 u_char vl_bpix
; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8 */
77 u_char vl_lbw
; /* LCD Bus width, 0 = 4, 1 = 8 */
78 u_char vl_splt
; /* Split display, 0 = single-scan, 1 = dual-scan */
79 u_char vl_clor
; /* Color, 0 = mono, 1 = color */
80 u_char vl_tft
; /* 0 = passive, 1 = TFT */
82 /* Horizontal control register. Timing from data sheet */
83 ushort vl_wbl
; /* Wait between lines */
85 /* Vertical control register */
86 u_char vl_vpw
; /* Vertical sync pulse width */
87 u_char vl_lcdac
; /* LCD AC timing */
88 u_char vl_wbf
; /* Wait between frames */
91 #elif defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
92 defined CONFIG_CPU_MONAHANS
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) || defined(CONFIG_ATMEL_HLCD)
163 typedef struct vidinfo
{
164 ushort vl_col
; /* Number of columns (i.e. 640) */
165 ushort 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 */
172 u_long vl_cont_pol_low
; /* contrast polarity is low */
173 u_long vl_clk_pol
; /* clock polarity */
175 /* Horizontal control register. */
176 u_long vl_hsync_len
; /* Length of horizontal sync */
177 u_long vl_left_margin
; /* Time from sync to picture */
178 u_long vl_right_margin
; /* Time from picture to sync */
180 /* Vertical control register. */
181 u_long vl_vsync_len
; /* Length of vertical sync */
182 u_long vl_upper_margin
; /* Time from sync to picture */
183 u_long vl_lower_margin
; /* Time from picture to sync */
185 u_long mmio
; /* Memory mapped registers */
188 #elif defined(CONFIG_EXYNOS_FB)
191 FIMD_RGB_INTERFACE
= 1,
192 FIMD_CPU_INTERFACE
= 2,
195 enum exynos_fb_rgb_mode_t
{
202 typedef struct vidinfo
{
203 ushort vl_col
; /* Number of columns (i.e. 640) */
204 ushort vl_row
; /* Number of rows (i.e. 480) */
205 ushort vl_width
; /* Width of display area in millimeters */
206 ushort vl_height
; /* Height of display area in millimeters */
208 /* LCD configuration register */
209 u_char vl_freq
; /* Frequency */
210 u_char vl_clkp
; /* Clock polarity */
211 u_char vl_oep
; /* Output Enable polarity */
212 u_char vl_hsp
; /* Horizontal Sync polarity */
213 u_char vl_vsp
; /* Vertical Sync polarity */
214 u_char vl_dp
; /* Data polarity */
215 u_char vl_bpix
; /* Bits per pixel */
217 /* Horizontal control register. Timing from data sheet */
218 u_char vl_hspw
; /* Horz sync pulse width */
219 u_char vl_hfpd
; /* Wait before of line */
220 u_char vl_hbpd
; /* Wait end of line */
222 /* Vertical control register. */
223 u_char vl_vspw
; /* Vertical sync pulse width */
224 u_char vl_vfpd
; /* Wait before of frame */
225 u_char vl_vbpd
; /* Wait end of frame */
226 u_char vl_cmd_allow_len
; /* Wait end of frame */
229 unsigned int init_delay
;
230 unsigned int power_on_delay
;
231 unsigned int reset_delay
;
232 unsigned int interface_mode
;
233 unsigned int mipi_enabled
;
234 unsigned int dp_enabled
;
235 unsigned int cs_setup
;
236 unsigned int wr_setup
;
238 unsigned int wr_hold
;
239 unsigned int logo_on
;
240 unsigned int logo_width
;
241 unsigned int logo_height
;
242 unsigned long logo_addr
;
243 unsigned int rgb_mode
;
244 unsigned int resolution
;
246 /* parent clock name(MPLL, EPLL or VPLL) */
247 unsigned int pclk_name
;
248 /* ratio value for source clock from parent clock. */
249 unsigned int sclk_div
;
251 unsigned int dual_lcd_enabled
;
254 void init_panel_info(vidinfo_t
*vid
);
258 typedef struct vidinfo
{
259 ushort vl_col
; /* Number of columns (i.e. 160) */
260 ushort vl_row
; /* Number of rows (i.e. 100) */
262 u_char vl_bpix
; /* Bits per pixel, 0 = 1 */
264 ushort
*cmap
; /* Pointer to the colormap */
266 void *priv
; /* Pointer to driver-specific data */
269 #endif /* CONFIG_MPC823, CONFIG_CPU_PXA25X, CONFIG_MCC200, CONFIG_ATMEL_LCD */
271 extern vidinfo_t panel_info
;
273 /* Video functions */
275 #if defined(CONFIG_RBC823)
276 void lcd_disable(void);
279 void lcd_putc(const char c
);
280 void lcd_puts(const char *s
);
281 void lcd_printf(const char *fmt
, ...);
282 void lcd_clear(void);
283 int lcd_display_bitmap(ulong bmp_image
, int x
, int y
);
286 * Get the width of the LCD in pixels
288 * @return width of LCD in pixels
290 int lcd_get_pixel_width(void);
293 * Get the height of the LCD in pixels
295 * @return height of LCD in pixels
297 int lcd_get_pixel_height(void);
300 * Get the number of text lines/rows on the LCD
302 * @return number of rows
304 int lcd_get_screen_rows(void);
307 * Get the number of text columns on the LCD
309 * @return number of columns
311 int lcd_get_screen_columns(void);
314 * Set the position of the text cursor
316 * @param col Column to place cursor (0 = left side)
317 * @param row Row to place cursor (0 = top line)
319 void lcd_position_cursor(unsigned col
, unsigned row
);
321 /* Allow boards to customize the information displayed */
322 void lcd_show_board_info(void);
324 /* Return the size of the LCD frame buffer, and the line length */
325 int lcd_get_size(int *line_length
);
327 int lcd_dt_simplefb_add_node(void *blob
);
328 int lcd_dt_simplefb_enable_existing_node(void *blob
);
330 /************************************************************************/
331 /* ** BITMAP DISPLAY SUPPORT */
332 /************************************************************************/
333 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
334 # include <bmp_layout.h>
335 # include <asm/byteorder.h>
339 * Information about displays we are using. This is for configuring
340 * the LCD controller and memory allocation. Someone has to know what
341 * is connected, as we can't autodetect anything.
343 #define CONFIG_SYS_HIGH 0 /* Pins are active high */
344 #define CONFIG_SYS_LOW 1 /* Pins are active low */
346 #define LCD_MONOCHROME 0
350 #define LCD_COLOR16 4
352 /*----------------------------------------------------------------------*/
353 #if defined(CONFIG_LCD_INFO_BELOW_LOGO)
354 # define LCD_INFO_X 0
355 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
356 #elif defined(CONFIG_LCD_LOGO)
357 # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
358 # define LCD_INFO_Y VIDEO_FONT_HEIGHT
360 # define LCD_INFO_X VIDEO_FONT_WIDTH
361 # define LCD_INFO_Y VIDEO_FONT_HEIGHT
364 /* Default to 8bpp if bit depth not specified */
366 # define LCD_BPP LCD_COLOR8
372 /* Calculate nr. of bits per pixel and nr. of colors */
373 #define NBITS(bit_code) (1 << (bit_code))
374 #define NCOLORS(bit_code) (1 << NBITS(bit_code))
376 /************************************************************************/
377 /* ** CONSOLE CONSTANTS */
378 /************************************************************************/
379 #if LCD_BPP == LCD_MONOCHROME
382 * Simple black/white definitions
384 # define CONSOLE_COLOR_BLACK 0
385 # define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */
387 #elif LCD_BPP == LCD_COLOR8
390 * 8bpp color definitions
392 # define CONSOLE_COLOR_BLACK 0
393 # define CONSOLE_COLOR_RED 1
394 # define CONSOLE_COLOR_GREEN 2
395 # define CONSOLE_COLOR_YELLOW 3
396 # define CONSOLE_COLOR_BLUE 4
397 # define CONSOLE_COLOR_MAGENTA 5
398 # define CONSOLE_COLOR_CYAN 6
399 # define CONSOLE_COLOR_GREY 14
400 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */
405 * 16bpp color definitions
407 # define CONSOLE_COLOR_BLACK 0x0000
408 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */
410 #endif /* color definitions */
412 /************************************************************************/
414 # define PAGE_SIZE 4096
417 /************************************************************************/