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83d290c5 1// SPDX-License-Identifier: GPL-2.0+
8655b6f8 2/*
c8d2febc 3 * Common LCD routines
8655b6f8
WD
4 *
5 * (C) Copyright 2001-2002
6 * Wolfgang Denk, DENX Software Engineering -- wd@denx.de
8655b6f8
WD
7 */
8
8655b6f8 9/* #define DEBUG */
8655b6f8
WD
10#include <config.h>
11#include <common.h>
12#include <command.h>
c0880485 13#include <env_callback.h>
8655b6f8 14#include <linux/types.h>
52cb4d4f 15#include <stdio_dev.h>
8655b6f8 16#include <lcd.h>
0eb25b61 17#include <mapmem.h>
8b0bfc68 18#include <watchdog.h>
dca2a1c1 19#include <asm/unaligned.h>
dd4425e8 20#include <splash.h>
7d95f2a3
SG
21#include <asm/io.h>
22#include <asm/unaligned.h>
c8d2febc 23#include <video_font.h>
dd4425e8 24
88804d19 25#ifdef CONFIG_LCD_LOGO
c8d2febc
NK
26#include <bmp_logo.h>
27#include <bmp_logo_data.h>
28#if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
29#error Default Color Map overlaps with Logo Color Map
30#endif
88804d19 31#endif
8655b6f8 32
676d319e
SG
33#ifndef CONFIG_LCD_ALIGNMENT
34#define CONFIG_LCD_ALIGNMENT PAGE_SIZE
35#endif
36
a7de2953
NK
37#if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \
38 (LCD_BPP != LCD_COLOR32)
c8d2febc 39#error Unsupported LCD BPP.
a5796c51
JH
40#endif
41
d87080b7 42DECLARE_GLOBAL_DATA_PTR;
8655b6f8 43
8f47d917 44static int lcd_init(void *lcdbase);
7bf71d1f 45static void lcd_logo(void);
8f47d917
NK
46static void lcd_setfgcolor(int color);
47static void lcd_setbgcolor(int color);
8655b6f8 48
46d1d5dd
WD
49static int lcd_color_fg;
50static int lcd_color_bg;
f1d205a1 51int lcd_line_length;
8655b6f8 52char lcd_is_enabled = 0;
00a0ca59 53static void *lcd_base; /* Start of framebuffer memory */
9a8efc46 54static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */
8655b6f8 55
9a8efc46
SG
56/* Flush LCD activity to the caches */
57void lcd_sync(void)
58{
59 /*
60 * flush_dcache_range() is declared in common.h but it seems that some
61 * architectures do not actually implement it. Is there a way to find
62 * out whether it exists? For now, ARM is safe.
63 */
64#if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
65 int line_length;
66
67 if (lcd_flush_dcache)
f8f58fbb
AG
68 flush_dcache_range((ulong)lcd_base,
69 (ulong)(lcd_base + lcd_get_size(&line_length)));
9a8efc46
SG
70#endif
71}
72
73void lcd_set_flush_dcache(int flush)
74{
75 lcd_flush_dcache = (flush != 0);
76}
77
709ea543
SG
78static void lcd_stub_putc(struct stdio_dev *dev, const char c)
79{
80 lcd_putc(c);
81}
82
709ea543
SG
83static void lcd_stub_puts(struct stdio_dev *dev, const char *s)
84{
85 lcd_puts(s);
86}
87
c8d2febc 88/* Small utility to check that you got the colours right */
8655b6f8
WD
89#ifdef LCD_TEST_PATTERN
90
e32951b5 91#if LCD_BPP == LCD_COLOR8
8655b6f8
WD
92#define N_BLK_VERT 2
93#define N_BLK_HOR 3
94
6b035141 95static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
8655b6f8
WD
96 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
97 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
e32951b5
AN
98}; /*LCD_BPP == LCD_COLOR8 */
99
100#elif LCD_BPP == LCD_COLOR16
101#define N_BLK_VERT 2
102#define N_BLK_HOR 4
103
104static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
105 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, CONSOLE_COLOR_BLUE,
106 CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, CONSOLE_COLOR_GREY, CONSOLE_COLOR_WHITE,
8655b6f8 107};
e32951b5 108#endif /*LCD_BPP == LCD_COLOR16 */
8655b6f8 109
8f47d917 110static void test_pattern(void)
8655b6f8
WD
111{
112 ushort v_max = panel_info.vl_row;
113 ushort h_max = panel_info.vl_col;
114 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
115 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
116 ushort v, h;
e32951b5 117#if LCD_BPP == LCD_COLOR8
8655b6f8 118 uchar *pix = (uchar *)lcd_base;
e32951b5
AN
119#elif LCD_BPP == LCD_COLOR16
120 ushort *pix = (ushort *)lcd_base;
121#endif
8655b6f8 122
8f47d917 123 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
8655b6f8
WD
124 h_max, v_max, h_step, v_step);
125
8f47d917 126 for (v = 0; v < v_max; ++v) {
8655b6f8 127 uchar iy = v / v_step;
8f47d917 128 for (h = 0; h < h_max; ++h) {
6b035141 129 uchar ix = N_BLK_HOR * iy + h / h_step;
8655b6f8
WD
130 *pix++ = test_colors[ix];
131 }
132 }
133}
134#endif /* LCD_TEST_PATTERN */
135
cefa4717
AG
136/*
137 * With most lcd drivers the line length is set up
138 * by calculating it from panel_info parameters. Some
139 * drivers need to calculate the line length differently,
140 * so make the function weak to allow overriding it.
141 */
142__weak int lcd_get_size(int *line_length)
676d319e
SG
143{
144 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
145 return *line_length * panel_info.vl_row;
146}
147
6b035141 148int drv_lcd_init(void)
8655b6f8 149{
52cb4d4f 150 struct stdio_dev lcddev;
8655b6f8
WD
151 int rc;
152
7d95f2a3 153 lcd_base = map_sysmem(gd->fb_base, 0);
8655b6f8 154
c8d2febc 155 lcd_init(lcd_base);
8655b6f8
WD
156
157 /* Device initialization */
8f47d917 158 memset(&lcddev, 0, sizeof(lcddev));
8655b6f8 159
8f47d917 160 strcpy(lcddev.name, "lcd");
8655b6f8
WD
161 lcddev.ext = 0; /* No extensions */
162 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
709ea543
SG
163 lcddev.putc = lcd_stub_putc; /* 'putc' function */
164 lcddev.puts = lcd_stub_puts; /* 'puts' function */
8655b6f8 165
6b035141 166 rc = stdio_register(&lcddev);
8655b6f8
WD
167
168 return (rc == 0) ? 1 : rc;
169}
170
02110903 171void lcd_clear(void)
8655b6f8 172{
4d03634e 173 int bg_color;
7bf71d1f
NK
174 char *s;
175 ulong addr;
176 static int do_splash = 1;
f4469f50 177#if LCD_BPP == LCD_COLOR8
8655b6f8 178 /* Setting the palette */
8f47d917
NK
179 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
180 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
181 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
182 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
183 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
184 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
185 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
186 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
187 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
8655b6f8
WD
188#endif
189
6d0f6bcf 190#ifndef CONFIG_SYS_WHITE_ON_BLACK
8f47d917
NK
191 lcd_setfgcolor(CONSOLE_COLOR_BLACK);
192 lcd_setbgcolor(CONSOLE_COLOR_WHITE);
4d03634e 193 bg_color = CONSOLE_COLOR_WHITE;
8655b6f8 194#else
8f47d917
NK
195 lcd_setfgcolor(CONSOLE_COLOR_WHITE);
196 lcd_setbgcolor(CONSOLE_COLOR_BLACK);
4d03634e 197 bg_color = CONSOLE_COLOR_BLACK;
6d0f6bcf 198#endif /* CONFIG_SYS_WHITE_ON_BLACK */
8655b6f8
WD
199
200#ifdef LCD_TEST_PATTERN
201 test_pattern();
202#else
203 /* set framebuffer to background color */
57d76a89 204#if (LCD_BPP != LCD_COLOR32)
4d03634e 205 memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row);
57d76a89
HP
206#else
207 u32 *ppix = lcd_base;
208 u32 i;
209 for (i = 0;
210 i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix);
211 i++) {
4d03634e 212 *ppix++ = bg_color;
57d76a89
HP
213 }
214#endif
8655b6f8 215#endif
604c7d4a
HP
216 /* setup text-console */
217 debug("[LCD] setting up console...\n");
218 lcd_init_console(lcd_base,
219 panel_info.vl_col,
220 panel_info.vl_row,
221 panel_info.vl_rot);
8655b6f8 222 /* Paint the logo and retrieve LCD base address */
8f47d917 223 debug("[LCD] Drawing the logo...\n");
7bf71d1f 224 if (do_splash) {
00caae6d 225 s = env_get("splashimage");
7bf71d1f
NK
226 if (s) {
227 do_splash = 0;
228 addr = simple_strtoul(s, NULL, 16);
229 if (lcd_splash(addr) == 0) {
230 lcd_sync();
231 return;
232 }
233 }
234 }
235
236 lcd_logo();
237#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
238 addr = (ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length;
3b96b909
MZ
239 lcd_init_console((void *)addr, panel_info.vl_col,
240 panel_info.vl_row, panel_info.vl_rot);
7bf71d1f 241#endif
9a8efc46
SG
242 lcd_sync();
243}
244
8f47d917 245static int lcd_init(void *lcdbase)
8655b6f8 246{
8f47d917 247 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
8f47d917 248 lcd_ctrl_init(lcdbase);
1d3dea12
AG
249
250 /*
9316e144 251 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores
1d3dea12
AG
252 * the 'lcdbase' argument and uses custom lcd base address
253 * by setting up gd->fb_base. Check for this condition and fixup
254 * 'lcd_base' address.
255 */
7d95f2a3
SG
256 if (map_to_sysmem(lcdbase) != gd->fb_base)
257 lcd_base = map_sysmem(gd->fb_base, 0);
1d3dea12
AG
258
259 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
260
6d330719 261 lcd_get_size(&lcd_line_length);
6f93d2b8 262 lcd_is_enabled = 1;
02110903 263 lcd_clear();
6b035141 264 lcd_enable();
8655b6f8
WD
265
266 /* Initialize the console */
140beb94 267 lcd_set_col(0);
88804d19 268#ifdef CONFIG_LCD_INFO_BELOW_LOGO
140beb94 269 lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT);
8655b6f8 270#else
140beb94 271 lcd_set_row(1); /* leave 1 blank line below logo */
8655b6f8 272#endif
8655b6f8
WD
273
274 return 0;
275}
276
8655b6f8
WD
277/*
278 * This is called early in the system initialization to grab memory
279 * for the LCD controller.
280 * Returns new address for monitor, after reserving LCD buffer memory
281 *
282 * Note that this is running from ROM, so no write access to global data.
283 */
8f47d917 284ulong lcd_setmem(ulong addr)
8655b6f8
WD
285{
286 ulong size;
676d319e 287 int line_length;
8655b6f8 288
8f47d917
NK
289 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
290 panel_info.vl_row, NBITS(panel_info.vl_bpix));
8655b6f8 291
676d319e 292 size = lcd_get_size(&line_length);
8655b6f8 293
676d319e
SG
294 /* Round up to nearest full page, or MMU section if defined */
295 size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
296 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
8655b6f8
WD
297
298 /* Allocate pages for the frame buffer. */
299 addr -= size;
300
6b035141
JH
301 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
302 size >> 10, addr);
8655b6f8 303
8f47d917 304 return addr;
8655b6f8
WD
305}
306
8f47d917 307static void lcd_setfgcolor(int color)
8655b6f8 308{
39cf4804 309 lcd_color_fg = color;
8655b6f8
WD
310}
311
4d03634e
NK
312int lcd_getfgcolor(void)
313{
314 return lcd_color_fg;
315}
316
8f47d917 317static void lcd_setbgcolor(int color)
8655b6f8 318{
39cf4804 319 lcd_color_bg = color;
8655b6f8
WD
320}
321
4d03634e
NK
322int lcd_getbgcolor(void)
323{
324 return lcd_color_bg;
325}
326
8655b6f8 327#ifdef CONFIG_LCD_LOGO
a02e9481
NK
328__weak void lcd_logo_set_cmap(void)
329{
2306457c
NK
330 int i;
331 ushort *cmap = configuration_get_cmap();
332
333 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i)
334 *cmap++ = bmp_logo_palette[i];
a02e9481
NK
335}
336
bf21a5de 337void lcd_logo_plot(int x, int y)
8655b6f8 338{
8655b6f8 339 ushort i, j;
c8d2febc 340 uchar *bmap = &bmp_logo_bitmap[0];
317461c1 341 unsigned bpix = NBITS(panel_info.vl_bpix);
c8d2febc
NK
342 uchar *fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
343 ushort *fb16;
8655b6f8 344
2306457c
NK
345 debug("Logo: width %d height %d colors %d\n",
346 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS);
8655b6f8 347
317461c1 348 if (bpix < 12) {
8655b6f8 349 WATCHDOG_RESET();
a02e9481 350 lcd_logo_set_cmap();
8655b6f8
WD
351 WATCHDOG_RESET();
352
8f47d917
NK
353 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
354 memcpy(fb, bmap, BMP_LOGO_WIDTH);
8655b6f8 355 bmap += BMP_LOGO_WIDTH;
6b035141 356 fb += panel_info.vl_col;
8655b6f8
WD
357 }
358 }
359 else { /* true color mode */
acb13868 360 u16 col16;
317461c1 361 fb16 = (ushort *)fb;
8f47d917
NK
362 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
363 for (j = 0; j < BMP_LOGO_WIDTH; j++) {
acb13868
AR
364 col16 = bmp_logo_palette[(bmap[j]-16)];
365 fb16[j] =
366 ((col16 & 0x000F) << 1) |
367 ((col16 & 0x00F0) << 3) |
368 ((col16 & 0x0F00) << 4);
8655b6f8
WD
369 }
370 bmap += BMP_LOGO_WIDTH;
371 fb16 += panel_info.vl_col;
372 }
373 }
374
375 WATCHDOG_RESET();
9a8efc46 376 lcd_sync();
8655b6f8 377}
2b5cb3d3 378#else
bf21a5de 379static inline void lcd_logo_plot(int x, int y) {}
8655b6f8
WD
380#endif /* CONFIG_LCD_LOGO */
381
c3517f91 382#if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
1ca298ce 383#ifdef CONFIG_SPLASH_SCREEN_ALIGN
7c7e280a
NK
384
385static void splash_align_axis(int *axis, unsigned long panel_size,
386 unsigned long picture_size)
387{
388 unsigned long panel_picture_delta = panel_size - picture_size;
389 unsigned long axis_alignment;
390
391 if (*axis == BMP_ALIGN_CENTER)
392 axis_alignment = panel_picture_delta / 2;
393 else if (*axis < 0)
394 axis_alignment = panel_picture_delta + *axis + 1;
395 else
396 return;
397
b4141195 398 *axis = max(0, (int)axis_alignment);
7c7e280a 399}
1ca298ce
MW
400#endif
401
45d7f525 402#ifdef CONFIG_LCD_BMP_RLE8
45d7f525
TWHT
403#define BMP_RLE8_ESCAPE 0
404#define BMP_RLE8_EOL 0
405#define BMP_RLE8_EOBMP 1
406#define BMP_RLE8_DELTA 2
407
408static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
409 int cnt)
410{
411 while (cnt > 0) {
412 *(*fbp)++ = cmap[*bmap++];
413 cnt--;
414 }
415}
416
417static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
418{
419 ushort *fb = *fbp;
420 int cnt_8copy = cnt >> 3;
421
422 cnt -= cnt_8copy << 3;
423 while (cnt_8copy > 0) {
424 *fb++ = c;
425 *fb++ = c;
426 *fb++ = c;
427 *fb++ = c;
428 *fb++ = c;
429 *fb++ = c;
430 *fb++ = c;
431 *fb++ = c;
432 cnt_8copy--;
433 }
434 while (cnt > 0) {
435 *fb++ = c;
436 cnt--;
437 }
6b035141 438 *fbp = fb;
45d7f525
TWHT
439}
440
441/*
6b035141 442 * Do not call this function directly, must be called from lcd_display_bitmap.
45d7f525 443 */
1c3dbe56
SG
444static void lcd_display_rle8_bitmap(struct bmp_image *bmp, ushort *cmap,
445 uchar *fb, int x_off, int y_off)
45d7f525
TWHT
446{
447 uchar *bmap;
448 ulong width, height;
449 ulong cnt, runlen;
450 int x, y;
451 int decode = 1;
452
dca2a1c1
PM
453 width = get_unaligned_le32(&bmp->header.width);
454 height = get_unaligned_le32(&bmp->header.height);
455 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
45d7f525
TWHT
456
457 x = 0;
458 y = height - 1;
459
460 while (decode) {
461 if (bmap[0] == BMP_RLE8_ESCAPE) {
462 switch (bmap[1]) {
463 case BMP_RLE8_EOL:
464 /* end of line */
465 bmap += 2;
466 x = 0;
467 y--;
468 /* 16bpix, 2-byte per pixel, width should *2 */
469 fb -= (width * 2 + lcd_line_length);
470 break;
471 case BMP_RLE8_EOBMP:
472 /* end of bitmap */
473 decode = 0;
474 break;
475 case BMP_RLE8_DELTA:
476 /* delta run */
477 x += bmap[2];
478 y -= bmap[3];
479 /* 16bpix, 2-byte per pixel, x should *2 */
480 fb = (uchar *) (lcd_base + (y + y_off - 1)
481 * lcd_line_length + (x + x_off) * 2);
482 bmap += 4;
483 break;
484 default:
485 /* unencoded run */
486 runlen = bmap[1];
487 bmap += 2;
488 if (y < height) {
489 if (x < width) {
490 if (x + runlen > width)
491 cnt = width - x;
492 else
493 cnt = runlen;
494 draw_unencoded_bitmap(
495 (ushort **)&fb,
496 bmap, cmap, cnt);
497 }
498 x += runlen;
499 }
500 bmap += runlen;
501 if (runlen & 1)
502 bmap++;
503 }
504 } else {
505 /* encoded run */
506 if (y < height) {
507 runlen = bmap[0];
508 if (x < width) {
509 /* aggregate the same code */
510 while (bmap[0] == 0xff &&
511 bmap[2] != BMP_RLE8_ESCAPE &&
512 bmap[1] == bmap[3]) {
513 runlen += bmap[2];
514 bmap += 2;
515 }
516 if (x + runlen > width)
517 cnt = width - x;
518 else
519 cnt = runlen;
520 draw_encoded_bitmap((ushort **)&fb,
521 cmap[bmap[1]], cnt);
522 }
523 x += runlen;
524 }
525 bmap += 2;
526 }
527 }
528}
529#endif
530
27fad01b
NK
531__weak void fb_put_byte(uchar **fb, uchar **from)
532{
533 *(*fb)++ = *(*from)++;
534}
bfdcc65e
NK
535
536#if defined(CONFIG_BMP_16BPP)
b3d12e9b 537__weak void fb_put_word(uchar **fb, uchar **from)
bfdcc65e
NK
538{
539 *(*fb)++ = *(*from)++;
540 *(*fb)++ = *(*from)++;
541}
bfdcc65e
NK
542#endif /* CONFIG_BMP_16BPP */
543
1c3dbe56 544__weak void lcd_set_cmap(struct bmp_image *bmp, unsigned colors)
0b29a896
NK
545{
546 int i;
1c3dbe56 547 struct bmp_color_table_entry cte;
0b29a896
NK
548 ushort *cmap = configuration_get_cmap();
549
550 for (i = 0; i < colors; ++i) {
551 cte = bmp->color_table[i];
552 *cmap = (((cte.red) << 8) & 0xf800) |
553 (((cte.green) << 3) & 0x07e0) |
554 (((cte.blue) >> 3) & 0x001f);
0b29a896 555 cmap++;
0b29a896
NK
556 }
557}
558
8655b6f8
WD
559int lcd_display_bitmap(ulong bmp_image, int x, int y)
560{
00cc5595 561 ushort *cmap_base = NULL;
8655b6f8
WD
562 ushort i, j;
563 uchar *fb;
1c3dbe56 564 struct bmp_image *bmp = (struct bmp_image *)map_sysmem(bmp_image, 0);
8655b6f8 565 uchar *bmap;
fecac46c 566 ushort padded_width;
b245e65e 567 unsigned long width, height, byte_width;
e8143e72 568 unsigned long pwidth = panel_info.vl_col;
b245e65e 569 unsigned colors, bpix, bmp_bpix;
8d379f17 570 int hdr_size;
021414a3 571 struct bmp_color_table_entry *palette;
8655b6f8 572
6b035141
JH
573 if (!bmp || !(bmp->header.signature[0] == 'B' &&
574 bmp->header.signature[1] == 'M')) {
8f47d917
NK
575 printf("Error: no valid bmp image at %lx\n", bmp_image);
576
8655b6f8 577 return 1;
b245e65e 578 }
8655b6f8 579
021414a3 580 palette = bmp->color_table;
dca2a1c1
PM
581 width = get_unaligned_le32(&bmp->header.width);
582 height = get_unaligned_le32(&bmp->header.height);
583 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
8d379f17
SG
584 hdr_size = get_unaligned_le16(&bmp->header.size);
585 debug("hdr_size=%d, bmp_bpix=%d\n", hdr_size, bmp_bpix);
dca2a1c1 586
b245e65e 587 colors = 1 << bmp_bpix;
8655b6f8
WD
588
589 bpix = NBITS(panel_info.vl_bpix);
590
6b035141 591 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
b245e65e
GL
592 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
593 bpix, bmp_bpix);
8f47d917 594
8655b6f8
WD
595 return 1;
596 }
597
a305fb15
HP
598 /*
599 * We support displaying 8bpp BMPs on 16bpp LCDs
600 * and displaying 24bpp BMPs on 32bpp LCDs
601 * */
602 if (bpix != bmp_bpix &&
603 !(bmp_bpix == 8 && bpix == 16) &&
604 !(bmp_bpix == 24 && bpix == 32)) {
8655b6f8 605 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
dca2a1c1 606 bpix, get_unaligned_le16(&bmp->header.bit_count));
8655b6f8
WD
607 return 1;
608 }
609
8d379f17
SG
610 debug("Display-bmp: %d x %d with %d colors, display %d\n",
611 (int)width, (int)height, (int)colors, 1 << bpix);
8655b6f8 612
0b29a896
NK
613 if (bmp_bpix == 8)
614 lcd_set_cmap(bmp, colors);
e8143e72 615
6b035141 616 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
1ca298ce
MW
617
618#ifdef CONFIG_SPLASH_SCREEN_ALIGN
7c7e280a
NK
619 splash_align_axis(&x, pwidth, width);
620 splash_align_axis(&y, panel_info.vl_row, height);
1ca298ce
MW
621#endif /* CONFIG_SPLASH_SCREEN_ALIGN */
622
8f47d917 623 if ((x + width) > pwidth)
e8143e72 624 width = pwidth - x;
8f47d917 625 if ((y + height) > panel_info.vl_row)
8655b6f8
WD
626 height = panel_info.vl_row - y;
627
dca2a1c1
PM
628 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
629 fb = (uchar *)(lcd_base +
8d46d5b1 630 (y + height - 1) * lcd_line_length + x * bpix / 8);
a303dfb0 631
b245e65e 632 switch (bmp_bpix) {
c8d2febc 633 case 1:
0156444c 634 case 8: {
0b29a896 635 cmap_base = configuration_get_cmap();
45d7f525 636#ifdef CONFIG_LCD_BMP_RLE8
dca2a1c1 637 u32 compression = get_unaligned_le32(&bmp->header.compression);
8d379f17 638 debug("compressed %d %d\n", compression, BMP_BI_RLE8);
dca2a1c1 639 if (compression == BMP_BI_RLE8) {
45d7f525
TWHT
640 if (bpix != 16) {
641 /* TODO implement render code for bpix != 16 */
642 printf("Error: only support 16 bpix");
643 return 1;
644 }
645 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
646 break;
647 }
648#endif
649
b245e65e
GL
650 if (bpix != 16)
651 byte_width = width;
652 else
653 byte_width = width * 2;
654
a303dfb0
MJ
655 for (i = 0; i < height; ++i) {
656 WATCHDOG_RESET();
b245e65e
GL
657 for (j = 0; j < width; j++) {
658 if (bpix != 16) {
27fad01b 659 fb_put_byte(&fb, &bmap);
b245e65e 660 } else {
8d379f17
SG
661 struct bmp_color_table_entry *entry;
662 uint val;
663
664 if (cmap_base) {
665 val = cmap_base[*bmap];
666 } else {
667 entry = &palette[*bmap];
668 val = entry->blue >> 3 |
669 entry->green >> 2 << 5 |
670 entry->red >> 3 << 11;
671 }
672 *(uint16_t *)fb = val;
673 bmap++;
b245e65e
GL
674 fb += sizeof(uint16_t) / sizeof(*fb);
675 }
676 }
fecac46c 677 bmap += (padded_width - width);
6b035141 678 fb -= byte_width + lcd_line_length;
a303dfb0
MJ
679 }
680 break;
0156444c 681 }
a303dfb0
MJ
682#if defined(CONFIG_BMP_16BPP)
683 case 16:
684 for (i = 0; i < height; ++i) {
685 WATCHDOG_RESET();
bfdcc65e
NK
686 for (j = 0; j < width; j++)
687 fb_put_word(&fb, &bmap);
688
fecac46c 689 bmap += (padded_width - width) * 2;
6b035141 690 fb -= width * 2 + lcd_line_length;
a303dfb0
MJ
691 }
692 break;
693#endif /* CONFIG_BMP_16BPP */
10ba6b33 694#if defined(CONFIG_BMP_24BPP)
a305fb15
HP
695 case 24:
696 for (i = 0; i < height; ++i) {
697 for (j = 0; j < width; j++) {
698 *(fb++) = *(bmap++);
699 *(fb++) = *(bmap++);
700 *(fb++) = *(bmap++);
701 *(fb++) = 0;
702 }
703 fb -= lcd_line_length + width * (bpix / 8);
704 }
705 break;
10ba6b33 706#endif /* CONFIG_BMP_24BPP */
fb6a9aab
DL
707#if defined(CONFIG_BMP_32BPP)
708 case 32:
709 for (i = 0; i < height; ++i) {
710 for (j = 0; j < width; j++) {
711 *(fb++) = *(bmap++);
712 *(fb++) = *(bmap++);
713 *(fb++) = *(bmap++);
714 *(fb++) = *(bmap++);
715 }
6b035141 716 fb -= lcd_line_length + width * (bpix / 8);
fb6a9aab
DL
717 }
718 break;
719#endif /* CONFIG_BMP_32BPP */
a303dfb0
MJ
720 default:
721 break;
722 };
8655b6f8 723
9a8efc46 724 lcd_sync();
8f47d917 725 return 0;
8655b6f8 726}
c3517f91 727#endif
8655b6f8 728
7bf71d1f 729static void lcd_logo(void)
8655b6f8 730{
bf21a5de 731 lcd_logo_plot(0, 0);
8655b6f8 732
6b59e03e 733#ifdef CONFIG_LCD_INFO
140beb94
NK
734 lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH);
735 lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT);
6b59e03e
HS
736 lcd_show_board_info();
737#endif /* CONFIG_LCD_INFO */
8655b6f8
WD
738}
739
c0880485
NK
740#ifdef CONFIG_SPLASHIMAGE_GUARD
741static int on_splashimage(const char *name, const char *value, enum env_op op,
742 int flags)
743{
744 ulong addr;
745 int aligned;
746
747 if (op == env_op_delete)
748 return 0;
749
750 addr = simple_strtoul(value, NULL, 16);
751 /* See README.displaying-bmps */
752 aligned = (addr % 4 == 2);
753 if (!aligned) {
754 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
755 return -1;
756 }
757
758 return 0;
759}
760
761U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
762#endif
763
395166cf
VB
764int lcd_get_pixel_width(void)
765{
766 return panel_info.vl_col;
767}
768
769int lcd_get_pixel_height(void)
770{
771 return panel_info.vl_row;
772}