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 * SPDX-License-Identifier: GPL-2.0+
17 #include <lcd_console.h>
19 extern char lcd_is_enabled;
21 extern int lcd_line_length;
23 extern struct vidinfo panel_info;
25 void lcd_ctrl_init(void *lcdbase);
26 void lcd_enable(void);
28 /* setcolreg used in 8bpp/16bpp; initcolregs used in monochrome */
29 void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue);
30 void lcd_initcolregs(void);
32 /* gunzip_bmp used if CONFIG_VIDEO_BMP_GZIP */
33 struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp,
35 int bmp_display(ulong addr, int x, int y);
38 * Set whether we need to flush the dcache when changing the LCD image. This
41 * @param flush non-zero to flush cache after update, 0 to skip
43 void lcd_set_flush_dcache(int flush);
45 #if defined CONFIG_MPC823
47 * LCD controller stucture for MPC823 CPU
49 typedef struct vidinfo {
50 ushort vl_col; /* Number of columns (i.e. 640) */
51 ushort vl_row; /* Number of rows (i.e. 480) */
52 ushort vl_width; /* Width of display area in millimeters */
53 ushort vl_height; /* Height of display area in millimeters */
55 /* LCD configuration register */
56 u_char vl_clkp; /* Clock polarity */
57 u_char vl_oep; /* Output Enable polarity */
58 u_char vl_hsp; /* Horizontal Sync polarity */
59 u_char vl_vsp; /* Vertical Sync polarity */
60 u_char vl_dp; /* Data polarity */
61 u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8 */
62 u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */
63 u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */
64 u_char vl_clor; /* Color, 0 = mono, 1 = color */
65 u_char vl_tft; /* 0 = passive, 1 = TFT */
67 /* Horizontal control register. Timing from data sheet */
68 ushort vl_wbl; /* Wait between lines */
70 /* Vertical control register */
71 u_char vl_vpw; /* Vertical sync pulse width */
72 u_char vl_lcdac; /* LCD AC timing */
73 u_char vl_wbf; /* Wait between frames */
76 #elif defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
77 defined CONFIG_CPU_MONAHANS
79 * PXA LCD DMA descriptor
81 struct pxafb_dma_descriptor {
82 u_long fdadr; /* Frame descriptor address register */
83 u_long fsadr; /* Frame source address register */
84 u_long fidr; /* Frame ID register */
85 u_long ldcmd; /* Command register */
101 /* DMA descriptors */
102 struct pxafb_dma_descriptor * dmadesc_fblow;
103 struct pxafb_dma_descriptor * dmadesc_fbhigh;
104 struct pxafb_dma_descriptor * dmadesc_palette;
106 u_long screen; /* physical address of frame buffer */
107 u_long palette; /* physical address of palette memory */
112 * LCD controller stucture for PXA CPU
114 typedef struct vidinfo {
115 ushort vl_col; /* Number of columns (i.e. 640) */
116 ushort vl_row; /* Number of rows (i.e. 480) */
117 ushort vl_width; /* Width of display area in millimeters */
118 ushort vl_height; /* Height of display area in millimeters */
120 /* LCD configuration register */
121 u_char vl_clkp; /* Clock polarity */
122 u_char vl_oep; /* Output Enable polarity */
123 u_char vl_hsp; /* Horizontal Sync polarity */
124 u_char vl_vsp; /* Vertical Sync polarity */
125 u_char vl_dp; /* Data polarity */
126 u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */
127 u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */
128 u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */
129 u_char vl_clor; /* Color, 0 = mono, 1 = color */
130 u_char vl_tft; /* 0 = passive, 1 = TFT */
132 /* Horizontal control register. Timing from data sheet */
133 ushort vl_hpw; /* Horz sync pulse width */
134 u_char vl_blw; /* Wait before of line */
135 u_char vl_elw; /* Wait end of line */
137 /* Vertical control register. */
138 u_char vl_vpw; /* Vertical sync pulse width */
139 u_char vl_bfw; /* Wait before of frame */
140 u_char vl_efw; /* Wait end of frame */
142 /* PXA LCD controller params */
143 struct pxafb_info pxa;
146 #elif defined(CONFIG_ATMEL_LCD) || defined(CONFIG_ATMEL_HLCD)
148 typedef struct vidinfo {
149 ushort vl_col; /* Number of columns (i.e. 640) */
150 ushort vl_row; /* Number of rows (i.e. 480) */
151 u_long vl_clk; /* pixel clock in ps */
153 /* LCD configuration register */
154 u_long vl_sync; /* Horizontal / vertical sync */
155 u_long vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */
156 u_long vl_tft; /* 0 = passive, 1 = TFT */
157 u_long vl_cont_pol_low; /* contrast polarity is low */
158 u_long vl_clk_pol; /* clock polarity */
160 /* Horizontal control register. */
161 u_long vl_hsync_len; /* Length of horizontal sync */
162 u_long vl_left_margin; /* Time from sync to picture */
163 u_long vl_right_margin; /* Time from picture to sync */
165 /* Vertical control register. */
166 u_long vl_vsync_len; /* Length of vertical sync */
167 u_long vl_upper_margin; /* Time from sync to picture */
168 u_long vl_lower_margin; /* Time from picture to sync */
170 void *mmio; /* Memory mapped registers */
173 #elif defined(CONFIG_EXYNOS_FB)
176 FIMD_RGB_INTERFACE = 1,
177 FIMD_CPU_INTERFACE = 2,
180 enum exynos_fb_rgb_mode_t {
187 typedef struct vidinfo {
188 ushort vl_col; /* Number of columns (i.e. 640) */
189 ushort vl_row; /* Number of rows (i.e. 480) */
190 ushort vl_width; /* Width of display area in millimeters */
191 ushort vl_height; /* Height of display area in millimeters */
193 /* LCD configuration register */
194 u_char vl_freq; /* Frequency */
195 u_char vl_clkp; /* Clock polarity */
196 u_char vl_oep; /* Output Enable polarity */
197 u_char vl_hsp; /* Horizontal Sync polarity */
198 u_char vl_vsp; /* Vertical Sync polarity */
199 u_char vl_dp; /* Data polarity */
200 u_char vl_bpix; /* Bits per pixel */
202 /* Horizontal control register. Timing from data sheet */
203 u_char vl_hspw; /* Horz sync pulse width */
204 u_char vl_hfpd; /* Wait before of line */
205 u_char vl_hbpd; /* Wait end of line */
207 /* Vertical control register. */
208 u_char vl_vspw; /* Vertical sync pulse width */
209 u_char vl_vfpd; /* Wait before of frame */
210 u_char vl_vbpd; /* Wait end of frame */
211 u_char vl_cmd_allow_len; /* Wait end of frame */
214 unsigned int init_delay;
215 unsigned int power_on_delay;
216 unsigned int reset_delay;
217 unsigned int interface_mode;
218 unsigned int mipi_enabled;
219 unsigned int dp_enabled;
220 unsigned int cs_setup;
221 unsigned int wr_setup;
223 unsigned int wr_hold;
224 unsigned int logo_on;
225 unsigned int logo_width;
226 unsigned int logo_height;
229 unsigned long logo_addr;
230 unsigned int rgb_mode;
231 unsigned int resolution;
233 /* parent clock name(MPLL, EPLL or VPLL) */
234 unsigned int pclk_name;
235 /* ratio value for source clock from parent clock. */
236 unsigned int sclk_div;
238 unsigned int dual_lcd_enabled;
241 void init_panel_info(vidinfo_t *vid);
245 typedef struct vidinfo {
246 ushort vl_col; /* Number of columns (i.e. 160) */
247 ushort vl_row; /* Number of rows (i.e. 100) */
249 u_char vl_bpix; /* Bits per pixel, 0 = 1 */
251 ushort *cmap; /* Pointer to the colormap */
253 void *priv; /* Pointer to driver-specific data */
256 #endif /* CONFIG_MPC823, CONFIG_CPU_PXA25X, CONFIG_ATMEL_LCD */
258 extern vidinfo_t panel_info;
260 /* Video functions */
262 void lcd_disable(void);
263 void lcd_panel_disable(void);
265 void lcd_putc(const char c);
266 void lcd_puts(const char *s);
267 void lcd_printf(const char *fmt, ...);
268 void lcd_clear(void);
269 int lcd_display_bitmap(ulong bmp_image, int x, int y);
272 * Get the width of the LCD in pixels
274 * @return width of LCD in pixels
276 int lcd_get_pixel_width(void);
279 * Get the height of the LCD in pixels
281 * @return height of LCD in pixels
283 int lcd_get_pixel_height(void);
286 * Get the number of text lines/rows on the LCD
288 * @return number of rows
290 int lcd_get_screen_rows(void);
293 * Get the number of text columns on the LCD
295 * @return number of columns
297 int lcd_get_screen_columns(void);
300 * Get the background color of the LCD
302 * @return background color value
304 int lcd_getbgcolor(void);
307 * Get the foreground color of the LCD
309 * @return foreground color value
311 int lcd_getfgcolor(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 /* Update the LCD / flush the cache */
333 /************************************************************************/
334 /* ** BITMAP DISPLAY SUPPORT */
335 /************************************************************************/
336 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
337 # include <bmp_layout.h>
338 # include <asm/byteorder.h>
342 * Information about displays we are using. This is for configuring
343 * the LCD controller and memory allocation. Someone has to know what
344 * is connected, as we can't autodetect anything.
346 #define CONFIG_SYS_HIGH 0 /* Pins are active high */
347 #define CONFIG_SYS_LOW 1 /* Pins are active low */
349 #define LCD_MONOCHROME 0
353 #define LCD_COLOR16 4
354 #define LCD_COLOR32 5
355 /*----------------------------------------------------------------------*/
356 #if defined(CONFIG_LCD_INFO_BELOW_LOGO)
357 # define LCD_INFO_X 0
358 # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
359 #elif defined(CONFIG_LCD_LOGO)
360 # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
361 # define LCD_INFO_Y VIDEO_FONT_HEIGHT
363 # define LCD_INFO_X VIDEO_FONT_WIDTH
364 # define LCD_INFO_Y VIDEO_FONT_HEIGHT
367 /* Default to 8bpp if bit depth not specified */
369 # define LCD_BPP LCD_COLOR8
375 /* Calculate nr. of bits per pixel and nr. of colors */
376 #define NBITS(bit_code) (1 << (bit_code))
377 #define NCOLORS(bit_code) (1 << NBITS(bit_code))
379 /************************************************************************/
380 /* ** CONSOLE CONSTANTS */
381 /************************************************************************/
382 #if LCD_BPP == LCD_COLOR8
385 * 8bpp color definitions
387 # define CONSOLE_COLOR_BLACK 0
388 # define CONSOLE_COLOR_RED 1
389 # define CONSOLE_COLOR_GREEN 2
390 # define CONSOLE_COLOR_YELLOW 3
391 # define CONSOLE_COLOR_BLUE 4
392 # define CONSOLE_COLOR_MAGENTA 5
393 # define CONSOLE_COLOR_CYAN 6
394 # define CONSOLE_COLOR_GREY 14
395 # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */
397 #elif LCD_BPP == LCD_COLOR32
399 * 32bpp color definitions
401 # define CONSOLE_COLOR_RED 0x00ff0000
402 # define CONSOLE_COLOR_GREEN 0x0000ff00
403 # define CONSOLE_COLOR_YELLOW 0x00ffff00
404 # define CONSOLE_COLOR_BLUE 0x000000ff
405 # define CONSOLE_COLOR_MAGENTA 0x00ff00ff
406 # define CONSOLE_COLOR_CYAN 0x0000ffff
407 # define CONSOLE_COLOR_GREY 0x00aaaaaa
408 # define CONSOLE_COLOR_BLACK 0x00000000
409 # define CONSOLE_COLOR_WHITE 0x00ffffff /* Must remain last / highest*/
410 # define NBYTES(bit_code) (NBITS(bit_code) >> 3)
412 #elif LCD_BPP == LCD_COLOR16
415 * 16bpp color definitions
417 # define CONSOLE_COLOR_BLACK 0x0000
418 # define CONSOLE_COLOR_RED 0xf800
419 # define CONSOLE_COLOR_GREEN 0x07e0
420 # define CONSOLE_COLOR_YELLOW 0xffe0
421 # define CONSOLE_COLOR_BLUE 0x001f
422 # define CONSOLE_COLOR_MAGENTA 0xf81f
423 # define CONSOLE_COLOR_CYAN 0x07ff
424 # define CONSOLE_COLOR_GREY 0xcccc
425 # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */
428 #error Invalid LCD_BPP setting
429 #endif /* color definitions */
431 /************************************************************************/
433 # define PAGE_SIZE 4096
436 /************************************************************************/