lcd.c 18 KB

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