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;
46 extern struct vidinfo panel_info;
48 extern void lcd_ctrl_init (void *lcdbase);
49 extern void lcd_enable (void);
51 /* setcolreg used in 8bpp/16bpp; initcolregs used in monochrome */
52 extern void lcd_setcolreg (ushort regno,
53 ushort red, ushort green, ushort blue);
54 extern void lcd_initcolregs (void);
56 /* gunzip_bmp used if CONFIG_VIDEO_BMP_GZIP */
57 extern struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp);
58 extern int bmp_display(ulong addr, int x, int y);
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)
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 */
174 /* Horizontal control register. */
175 u_long vl_hsync_len; /* Length of horizontal sync */
176 u_long vl_left_margin; /* Time from sync to picture */
177 u_long vl_right_margin; /* Time from picture to sync */
179 /* Vertical control register. */
180 u_long vl_vsync_len; /* Length of vertical sync */
181 u_long vl_upper_margin; /* Time from sync to picture */
182 u_long vl_lower_margin; /* Time from picture to sync */
184 u_long mmio; /* Memory mapped registers */
187 #elif defined(CONFIG_EXYNOS_FB)
190 FIMD_RGB_INTERFACE = 1,
191 FIMD_CPU_INTERFACE = 2,
194 typedef struct vidinfo {
195 ushort vl_col; /* Number of columns (i.e. 640) */
196 ushort vl_row; /* Number of rows (i.e. 480) */
197 ushort vl_width; /* Width of display area in millimeters */
198 ushort vl_height; /* Height of display area in millimeters */
200 /* LCD configuration register */
201 u_char vl_freq; /* Frequency */
202 u_char vl_clkp; /* Clock polarity */
203 u_char vl_oep; /* Output Enable polarity */
204 u_char vl_hsp; /* Horizontal Sync polarity */
205 u_char vl_vsp; /* Vertical Sync polarity */
206 u_char vl_dp; /* Data polarity */
207 u_char vl_bpix; /* Bits per pixel */
209 /* Horizontal control register. Timing from data sheet */
210 u_char vl_hspw; /* Horz sync pulse width */
211 u_char vl_hfpd; /* Wait before of line */
212 u_char vl_hbpd; /* Wait end of line */
214 /* Vertical control register. */
215 u_char vl_vspw; /* Vertical sync pulse width */
216 u_char vl_vfpd; /* Wait before of frame */
217 u_char vl_vbpd; /* Wait end of frame */
218 u_char vl_cmd_allow_len; /* Wait end of frame */
220 void (*cfg_gpio)(void);
221 void (*backlight_on)(unsigned int onoff);
222 void (*reset_lcd)(void);
223 void (*lcd_power_on)(void);
224 void (*cfg_ldo)(void);
225 void (*enable_ldo)(unsigned int onoff);
226 void (*mipi_power)(void);
227 void (*backlight_reset)(void);
230 unsigned int init_delay;
231 unsigned int power_on_delay;
232 unsigned int reset_delay;
233 unsigned int interface_mode;
234 unsigned int mipi_enabled;
235 unsigned int cs_setup;
236 unsigned int wr_setup;
238 unsigned int wr_hold;
240 /* parent clock name(MPLL, EPLL or VPLL) */
241 unsigned int pclk_name;
242 /* ratio value for source clock from parent clock. */
243 unsigned int sclk_div;
245 unsigned int dual_lcd_enabled;
249 void init_panel_info(vidinfo_t *vid);
253 typedef struct vidinfo {
254 ushort vl_col; /* Number of columns (i.e. 160) */
255 ushort vl_row; /* Number of rows (i.e. 100) */
257 u_char vl_bpix; /* Bits per pixel, 0 = 1 */
259 ushort *cmap; /* Pointer to the colormap */
261 void *priv; /* Pointer to driver-specific data */
264 #endif /* CONFIG_MPC823, CONFIG_CPU_PXA25X, CONFIG_MCC200, CONFIG_ATMEL_LCD */
266 extern vidinfo_t panel_info;
268 /* Video functions */
270 #if defined(CONFIG_RBC823)
271 void lcd_disable (void);
275 /* int lcd_init (void *lcdbase); */
276 void lcd_putc (const char c);
277 void lcd_puts (const char *s);
278 void lcd_printf (const char *fmt, ...);
279 void lcd_clear(void);
280 int lcd_display_bitmap(ulong bmp_image, int x, int y);
282 /* Allow boards to customize the information displayed */
283 void lcd_show_board_info(void);
285 /************************************************************************/
286 /* ** BITMAP DISPLAY SUPPORT */
287 /************************************************************************/
288 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
289 # include <bmp_layout.h>
290 # include <asm/byteorder.h>
294 * Information about displays we are using. This is for configuring
295 * the LCD controller and memory allocation. Someone has to know what
296 * is connected, as we can't autodetect anything.
298 #define CONFIG_SYS_HIGH 0 /* Pins are active high */
299 #define CONFIG_SYS_LOW 1 /* Pins are active low */
301 #define LCD_MONOCHROME 0
305 #define LCD_COLOR16 4
307 /*----------------------------------------------------------------------*/
308 #if defined(CONFIG_LCD_INFO_BELOW_LOGO)
309 # define LCD_INFO_X 0
310 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
311 #elif defined(CONFIG_LCD_LOGO)
312 # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
313 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
315 # define LCD_INFO_X (VIDEO_FONT_WIDTH)
316 # define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
319 /* Default to 8bpp if bit depth not specified */
321 # define LCD_BPP LCD_COLOR8
327 /* Calculate nr. of bits per pixel and nr. of colors */
328 #define NBITS(bit_code) (1 << (bit_code))
329 #define NCOLORS(bit_code) (1 << NBITS(bit_code))
331 /************************************************************************/
332 /* ** CONSOLE CONSTANTS */
333 /************************************************************************/
334 #if LCD_BPP == LCD_MONOCHROME
337 * Simple black/white definitions
339 # define CONSOLE_COLOR_BLACK 0
340 # define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */
342 #elif LCD_BPP == LCD_COLOR8
345 * 8bpp color definitions
347 # define CONSOLE_COLOR_BLACK 0
348 # define CONSOLE_COLOR_RED 1
349 # define CONSOLE_COLOR_GREEN 2
350 # define CONSOLE_COLOR_YELLOW 3
351 # define CONSOLE_COLOR_BLUE 4
352 # define CONSOLE_COLOR_MAGENTA 5
353 # define CONSOLE_COLOR_CYAN 6
354 # define CONSOLE_COLOR_GREY 14
355 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */
360 * 16bpp color definitions
362 # define CONSOLE_COLOR_BLACK 0x0000
363 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */
365 #endif /* color definitions */
367 /************************************************************************/
369 # define PAGE_SIZE 4096
372 /************************************************************************/
373 /* ** CONSOLE DEFINITIONS & FUNCTIONS */
374 /************************************************************************/
375 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
376 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
379 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT)
382 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH)
383 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length)
384 #define CONSOLE_ROW_FIRST (lcd_console_address)
385 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE)
386 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \
388 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
389 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
391 #if LCD_BPP == LCD_MONOCHROME
392 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \
393 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
394 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16)
395 # define COLOR_MASK(c) (c)
397 # error Unsupported LCD BPP.
400 /************************************************************************/