--- /dev/null
+/*
+ * Common LCD routines for supported CPUs
+ *
+ * (C) Copyright 2001-2002
+ * Wolfgang Denk, DENX Software Engineering -- wd@denx.de
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/************************************************************************/
+/* ** HEADER FILES */
+/************************************************************************/
+
+/* #define DEBUG */
+
+#include <config.h>
+#include <common.h>
+#include <command.h>
+#include <stdarg.h>
+#include <search.h>
+#include <env_callback.h>
+#include <linux/types.h>
+#include <stdio_dev.h>
+#if defined(CONFIG_POST)
+#include <post.h>
+#endif
+#include <lcd.h>
+#include <watchdog.h>
+#include <asm/unaligned.h>
+#include <splash.h>
+#include <asm/io.h>
+#include <asm/unaligned.h>
+
+#if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
+ defined(CONFIG_CPU_MONAHANS)
+#define CONFIG_CPU_PXA
+#include <asm/byteorder.h>
+#endif
+
+#if defined(CONFIG_MPC823)
+#include <lcdvideo.h>
+#endif
+
+#if defined(CONFIG_ATMEL_LCD)
+#include <atmel_lcdc.h>
+#endif
+
+#if defined(CONFIG_LCD_DT_SIMPLEFB)
+#include <libfdt.h>
+#endif
+
+/************************************************************************/
+/* ** FONT DATA */
+/************************************************************************/
+#include <video_font.h> /* Get font data, width and height */
+
+/************************************************************************/
+/* ** LOGO DATA */
+/************************************************************************/
+#ifdef CONFIG_LCD_LOGO
+# include <bmp_logo.h> /* Get logo data, width and height */
+# include <bmp_logo_data.h>
+# if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
+# error Default Color Map overlaps with Logo Color Map
+# endif
+#endif
+
+#ifdef CONFIG_SANDBOX
+#include <asm/sdl.h>
+#endif
+
+#ifndef CONFIG_LCD_ALIGNMENT
+#define CONFIG_LCD_ALIGNMENT PAGE_SIZE
+#endif
+
+/* By default we scroll by a single line */
+#ifndef CONFIG_CONSOLE_SCROLL_LINES
+#define CONFIG_CONSOLE_SCROLL_LINES 1
+#endif
+
+/************************************************************************/
+/* ** CONSOLE DEFINITIONS & FUNCTIONS */
+/************************************************************************/
+#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
+# define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
+ / VIDEO_FONT_HEIGHT)
+#else
+# define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT)
+#endif
+
+#define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH)
+#define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length)
+#define CONSOLE_ROW_FIRST lcd_console_address
+#define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE)
+#define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \
+ - CONSOLE_ROW_SIZE)
+#define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
+#define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
+
+#if LCD_BPP == LCD_MONOCHROME
+# define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \
+ (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
+#elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16)
+# define COLOR_MASK(c) (c)
+#else
+# error Unsupported LCD BPP.
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static void lcd_drawchars(ushort x, ushort y, uchar *str, int count);
+static inline void lcd_puts_xy(ushort x, ushort y, uchar *s);
+static inline void lcd_putc_xy(ushort x, ushort y, uchar c);
+
+static int lcd_init(void *lcdbase);
+
+static void *lcd_logo(void);
+
+static int lcd_getbgcolor(void);
+static void lcd_setfgcolor(int color);
+static void lcd_setbgcolor(int color);
+
+static int lcd_color_fg;
+static int lcd_color_bg;
+int lcd_line_length;
+
+char lcd_is_enabled = 0;
+
+static short console_col;
+static short console_row;
+
+static void *lcd_console_address;
+static void *lcd_base; /* Start of framebuffer memory */
+
+static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */
+
+/************************************************************************/
+
+/* Flush LCD activity to the caches */
+void lcd_sync(void)
+{
+ /*
+ * flush_dcache_range() is declared in common.h but it seems that some
+ * architectures do not actually implement it. Is there a way to find
+ * out whether it exists? For now, ARM is safe.
+ */
+#if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
+ int line_length;
+
+ if (lcd_flush_dcache)
+ flush_dcache_range((u32)lcd_base,
+ (u32)(lcd_base + lcd_get_size(&line_length)));
+#elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL)
+ static ulong last_sync;
+
+ if (get_timer(last_sync) > 10) {
+ sandbox_sdl_sync(lcd_base);
+ last_sync = get_timer(0);
+ }
+#endif
+}
+
+void lcd_set_flush_dcache(int flush)
+{
+ lcd_flush_dcache = (flush != 0);
+}
+
+/*----------------------------------------------------------------------*/
+
+static void console_scrollup(void)
+{
+ const int rows = CONFIG_CONSOLE_SCROLL_LINES;
+
+ /* Copy up rows ignoring those that will be overwritten */
+ memcpy(CONSOLE_ROW_FIRST,
+ lcd_console_address + CONSOLE_ROW_SIZE * rows,
+ CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows);
+
+ /* Clear the last rows */
+ memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows,
+ COLOR_MASK(lcd_color_bg),
+ CONSOLE_ROW_SIZE * rows);
+
+ lcd_sync();
+ console_row -= rows;
+}
+
+/*----------------------------------------------------------------------*/
+
+static inline void console_back(void)
+{
+ if (--console_col < 0) {
+ console_col = CONSOLE_COLS-1 ;
+ if (--console_row < 0)
+ console_row = 0;
+ }
+
+ lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
+ console_row * VIDEO_FONT_HEIGHT, ' ');
+}
+
+/*----------------------------------------------------------------------*/
+
+static inline void console_newline(void)
+{
+ console_col = 0;
+
+ /* Check if we need to scroll the terminal */
+ if (++console_row >= CONSOLE_ROWS)
+ console_scrollup();
+ else
+ lcd_sync();
+}
+
+/*----------------------------------------------------------------------*/
+
+void lcd_putc(const char c)
+{
+ if (!lcd_is_enabled) {
+ serial_putc(c);
+
+ return;
+ }
+
+ switch (c) {
+ case '\r':
+ console_col = 0;
+
+ return;
+ case '\n':
+ console_newline();
+
+ return;
+ case '\t': /* Tab (8 chars alignment) */
+ console_col += 8;
+ console_col &= ~7;
+
+ if (console_col >= CONSOLE_COLS)
+ console_newline();
+
+ return;
+ case '\b':
+ console_back();
+
+ return;
+ default:
+ lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
+ console_row * VIDEO_FONT_HEIGHT, c);
+ if (++console_col >= CONSOLE_COLS)
+ console_newline();
+ }
+}
+
+/*----------------------------------------------------------------------*/
+
+void lcd_puts(const char *s)
+{
+ if (!lcd_is_enabled) {
+ serial_puts(s);
+
+ return;
+ }
+
+ while (*s)
+ lcd_putc(*s++);
+
+ lcd_sync();
+}
+
+/*----------------------------------------------------------------------*/
+
+void lcd_printf(const char *fmt, ...)
+{
+ va_list args;
+ char buf[CONFIG_SYS_PBSIZE];
+
+ va_start(args, fmt);
+ vsprintf(buf, fmt, args);
+ va_end(args);
+
+ lcd_puts(buf);
+}
+
+/************************************************************************/
+/* ** Low-Level Graphics Routines */
+/************************************************************************/
+
+static void lcd_drawchars(ushort x, ushort y, uchar *str, int count)
+{
+ uchar *dest;
+ ushort row;
+
+#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
+ y += BMP_LOGO_HEIGHT;
+#endif
+
+#if LCD_BPP == LCD_MONOCHROME
+ ushort off = x * (1 << LCD_BPP) % 8;
+#endif
+
+ dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
+
+ for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
+ uchar *s = str;
+ int i;
+#if LCD_BPP == LCD_COLOR16
+ ushort *d = (ushort *)dest;
+#else
+ uchar *d = dest;
+#endif
+
+#if LCD_BPP == LCD_MONOCHROME
+ uchar rest = *d & -(1 << (8 - off));
+ uchar sym;
+#endif
+ for (i = 0; i < count; ++i) {
+ uchar c, bits;
+
+ c = *s++;
+ bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
+
+#if LCD_BPP == LCD_MONOCHROME
+ sym = (COLOR_MASK(lcd_color_fg) & bits) |
+ (COLOR_MASK(lcd_color_bg) & ~bits);
+
+ *d++ = rest | (sym >> off);
+ rest = sym << (8-off);
+#elif LCD_BPP == LCD_COLOR8
+ for (c = 0; c < 8; ++c) {
+ *d++ = (bits & 0x80) ?
+ lcd_color_fg : lcd_color_bg;
+ bits <<= 1;
+ }
+#elif LCD_BPP == LCD_COLOR16
+ for (c = 0; c < 8; ++c) {
+ *d++ = (bits & 0x80) ?
+ lcd_color_fg : lcd_color_bg;
+ bits <<= 1;
+ }
+#endif
+ }
+#if LCD_BPP == LCD_MONOCHROME
+ *d = rest | (*d & ((1 << (8 - off)) - 1));
+#endif
+ }
+}
+
+/*----------------------------------------------------------------------*/
+
+static inline void lcd_puts_xy(ushort x, ushort y, uchar *s)
+{
+ lcd_drawchars(x, y, s, strlen((char *)s));
+}
+
+/*----------------------------------------------------------------------*/
+
+static inline void lcd_putc_xy(ushort x, ushort y, uchar c)
+{
+ lcd_drawchars(x, y, &c, 1);
+}
+
+/************************************************************************/
+/** Small utility to check that you got the colours right */
+/************************************************************************/
+#ifdef LCD_TEST_PATTERN
+
+#define N_BLK_VERT 2
+#define N_BLK_HOR 3
+
+static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
+ CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
+ CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
+};
+
+static void test_pattern(void)
+{
+ ushort v_max = panel_info.vl_row;
+ ushort h_max = panel_info.vl_col;
+ ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
+ ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
+ ushort v, h;
+ uchar *pix = (uchar *)lcd_base;
+
+ printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
+ h_max, v_max, h_step, v_step);
+
+ /* WARNING: Code silently assumes 8bit/pixel */
+ for (v = 0; v < v_max; ++v) {
+ uchar iy = v / v_step;
+ for (h = 0; h < h_max; ++h) {
+ uchar ix = N_BLK_HOR * iy + h / h_step;
+ *pix++ = test_colors[ix];
+ }
+ }
+}
+#endif /* LCD_TEST_PATTERN */
+
+
+/************************************************************************/
+/* ** GENERIC Initialization Routines */
+/************************************************************************/
+/*
+ * With most lcd drivers the line length is set up
+ * by calculating it from panel_info parameters. Some
+ * drivers need to calculate the line length differently,
+ * so make the function weak to allow overriding it.
+ */
+__weak int lcd_get_size(int *line_length)
+{
+ *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
+ return *line_length * panel_info.vl_row;
+}
+
+int drv_lcd_init(void)
+{
+ struct stdio_dev lcddev;
+ int rc;
+
+ lcd_base = map_sysmem(gd->fb_base, 0);
+
+ lcd_init(lcd_base); /* LCD initialization */
+
+ /* Device initialization */
+ memset(&lcddev, 0, sizeof(lcddev));
+
+ strcpy(lcddev.name, "lcd");
+ lcddev.ext = 0; /* No extensions */
+ lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
+ lcddev.putc = lcd_putc; /* 'putc' function */
+ lcddev.puts = lcd_puts; /* 'puts' function */
+
+ rc = stdio_register(&lcddev);
+
+ return (rc == 0) ? 1 : rc;
+}
+
+/*----------------------------------------------------------------------*/
+void lcd_clear(void)
+{
+#if LCD_BPP == LCD_MONOCHROME
+ /* Setting the palette */
+ lcd_initcolregs();
+
+#elif LCD_BPP == LCD_COLOR8
+ /* Setting the palette */
+ lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
+ lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
+ lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
+ lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
+ lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
+ lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
+ lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
+ lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
+ lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
+#endif
+
+#ifndef CONFIG_SYS_WHITE_ON_BLACK
+ lcd_setfgcolor(CONSOLE_COLOR_BLACK);
+ lcd_setbgcolor(CONSOLE_COLOR_WHITE);
+#else
+ lcd_setfgcolor(CONSOLE_COLOR_WHITE);
+ lcd_setbgcolor(CONSOLE_COLOR_BLACK);
+#endif /* CONFIG_SYS_WHITE_ON_BLACK */
+
+#ifdef LCD_TEST_PATTERN
+ test_pattern();
+#else
+ /* set framebuffer to background color */
+ memset((char *)lcd_base,
+ COLOR_MASK(lcd_getbgcolor()),
+ lcd_line_length * panel_info.vl_row);
+#endif
+ /* Paint the logo and retrieve LCD base address */
+ debug("[LCD] Drawing the logo...\n");
+ lcd_console_address = lcd_logo();
+
+ console_col = 0;
+ console_row = 0;
+ lcd_sync();
+}
+
+static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ lcd_clear();
+ return 0;
+}
+
+U_BOOT_CMD(
+ cls, 1, 1, do_lcd_clear,
+ "clear screen",
+ ""
+);
+
+/*----------------------------------------------------------------------*/
+
+static int lcd_init(void *lcdbase)
+{
+ /* Initialize the lcd controller */
+ debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
+
+ lcd_ctrl_init(lcdbase);
+
+ /*
+ * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi_b) ignores
+ * the 'lcdbase' argument and uses custom lcd base address
+ * by setting up gd->fb_base. Check for this condition and fixup
+ * 'lcd_base' address.
+ */
+ if (map_to_sysmem(lcdbase) != gd->fb_base)
+ lcd_base = map_sysmem(gd->fb_base, 0);
+
+ debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
+
+ lcd_get_size(&lcd_line_length);
+ lcd_is_enabled = 1;
+ lcd_clear();
+ lcd_enable();
+
+ /* Initialize the console */
+ console_col = 0;
+#ifdef CONFIG_LCD_INFO_BELOW_LOGO
+ console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
+#else
+ console_row = 1; /* leave 1 blank line below logo */
+#endif
+
+ return 0;
+}
+
+
+/************************************************************************/
+/* ** ROM capable initialization part - needed to reserve FB memory */
+/************************************************************************/
+/*
+ * This is called early in the system initialization to grab memory
+ * for the LCD controller.
+ * Returns new address for monitor, after reserving LCD buffer memory
+ *
+ * Note that this is running from ROM, so no write access to global data.
+ */
+ulong lcd_setmem(ulong addr)
+{
+ ulong size;
+ int line_length;
+
+ debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
+ panel_info.vl_row, NBITS(panel_info.vl_bpix));
+
+ size = lcd_get_size(&line_length);
+
+ /* Round up to nearest full page, or MMU section if defined */
+ size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
+ addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
+
+ /* Allocate pages for the frame buffer. */
+ addr -= size;
+
+ debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
+ size >> 10, addr);
+
+ return addr;
+}
+
+/*----------------------------------------------------------------------*/
+
+static void lcd_setfgcolor(int color)
+{
+ lcd_color_fg = color;
+}
+
+/*----------------------------------------------------------------------*/
+
+static void lcd_setbgcolor(int color)
+{
+ lcd_color_bg = color;
+}
+
+/*----------------------------------------------------------------------*/
+
+int lcd_getfgcolor(void)
+{
+ return lcd_color_fg;
+}
+
+/*----------------------------------------------------------------------*/
+
+static int lcd_getbgcolor(void)
+{
+ return lcd_color_bg;
+}
+
+/************************************************************************/
+/* ** Chipset depending Bitmap / Logo stuff... */
+/************************************************************************/
+static inline ushort *configuration_get_cmap(void)
+{
+#if defined CONFIG_CPU_PXA
+ struct pxafb_info *fbi = &panel_info.pxa;
+ return (ushort *)fbi->palette;
+#elif defined(CONFIG_MPC823)
+ immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
+ cpm8xx_t *cp = &(immr->im_cpm);
+ return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]);
+#elif defined(CONFIG_ATMEL_LCD)
+ return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
+#elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB)
+ return panel_info.cmap;
+#elif defined(CONFIG_LCD_LOGO)
+ return bmp_logo_palette;
+#else
+ return NULL;
+#endif
+}
+
+#ifdef CONFIG_LCD_LOGO
+void bitmap_plot(int x, int y)
+{
+#ifdef CONFIG_ATMEL_LCD
+ uint *cmap = (uint *)bmp_logo_palette;
+#else
+ ushort *cmap = (ushort *)bmp_logo_palette;
+#endif
+ ushort i, j;
+ uchar *bmap;
+ uchar *fb;
+ ushort *fb16;
+#if defined(CONFIG_MPC823)
+ immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
+ cpm8xx_t *cp = &(immr->im_cpm);
+#endif
+ unsigned bpix = NBITS(panel_info.vl_bpix);
+
+ debug("Logo: width %d height %d colors %d cmap %d\n",
+ BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
+ ARRAY_SIZE(bmp_logo_palette));
+
+ bmap = &bmp_logo_bitmap[0];
+ fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
+
+ if (bpix < 12) {
+ /* Leave room for default color map
+ * default case: generic system with no cmap (most likely 16bpp)
+ * cmap was set to the source palette, so no change is done.
+ * This avoids even more ifdefs in the next stanza
+ */
+#if defined(CONFIG_MPC823)
+ cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]);
+#elif defined(CONFIG_ATMEL_LCD)
+ cmap = (uint *)configuration_get_cmap();
+#else
+ cmap = configuration_get_cmap();
+#endif
+
+ WATCHDOG_RESET();
+
+ /* Set color map */
+ for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) {
+ ushort colreg = bmp_logo_palette[i];
+#ifdef CONFIG_ATMEL_LCD
+ uint lut_entry;
+#ifdef CONFIG_ATMEL_LCD_BGR555
+ lut_entry = ((colreg & 0x000F) << 11) |
+ ((colreg & 0x00F0) << 2) |
+ ((colreg & 0x0F00) >> 7);
+#else /* CONFIG_ATMEL_LCD_RGB565 */
+ lut_entry = ((colreg & 0x000F) << 1) |
+ ((colreg & 0x00F0) << 3) |
+ ((colreg & 0x0F00) << 4);
+#endif
+ *(cmap + BMP_LOGO_OFFSET) = lut_entry;
+ cmap++;
+#else /* !CONFIG_ATMEL_LCD */
+#ifdef CONFIG_SYS_INVERT_COLORS
+ *cmap++ = 0xffff - colreg;
+#else
+ *cmap++ = colreg;
+#endif
+#endif /* CONFIG_ATMEL_LCD */
+ }
+
+ WATCHDOG_RESET();
+
+ for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
+ memcpy(fb, bmap, BMP_LOGO_WIDTH);
+ bmap += BMP_LOGO_WIDTH;
+ fb += panel_info.vl_col;
+ }
+ }
+ else { /* true color mode */
+ u16 col16;
+ fb16 = (ushort *)fb;
+ for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
+ for (j = 0; j < BMP_LOGO_WIDTH; j++) {
+ col16 = bmp_logo_palette[(bmap[j]-16)];
+ fb16[j] =
+ ((col16 & 0x000F) << 1) |
+ ((col16 & 0x00F0) << 3) |
+ ((col16 & 0x0F00) << 4);
+ }
+ bmap += BMP_LOGO_WIDTH;
+ fb16 += panel_info.vl_col;
+ }
+ }
+
+ WATCHDOG_RESET();
+ lcd_sync();
+}
+#else
+static inline void bitmap_plot(int x, int y) {}
+#endif /* CONFIG_LCD_LOGO */
+
+/*----------------------------------------------------------------------*/
+#if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
+/*
+ * Display the BMP file located at address bmp_image.
+ * Only uncompressed.
+ */
+
+#ifdef CONFIG_SPLASH_SCREEN_ALIGN
+#define BMP_ALIGN_CENTER 0x7FFF
+
+static void splash_align_axis(int *axis, unsigned long panel_size,
+ unsigned long picture_size)
+{
+ unsigned long panel_picture_delta = panel_size - picture_size;
+ unsigned long axis_alignment;
+
+ if (*axis == BMP_ALIGN_CENTER)
+ axis_alignment = panel_picture_delta / 2;
+ else if (*axis < 0)
+ axis_alignment = panel_picture_delta + *axis + 1;
+ else
+ return;
+
+ *axis = max(0, axis_alignment);
+}
+#endif
+
+
+#ifdef CONFIG_LCD_BMP_RLE8
+
+#define BMP_RLE8_ESCAPE 0
+#define BMP_RLE8_EOL 0
+#define BMP_RLE8_EOBMP 1
+#define BMP_RLE8_DELTA 2
+
+static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
+ int cnt)
+{
+ while (cnt > 0) {
+ *(*fbp)++ = cmap[*bmap++];
+ cnt--;
+ }
+}
+
+static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
+{
+ ushort *fb = *fbp;
+ int cnt_8copy = cnt >> 3;
+
+ cnt -= cnt_8copy << 3;
+ while (cnt_8copy > 0) {
+ *fb++ = c;
+ *fb++ = c;
+ *fb++ = c;
+ *fb++ = c;
+ *fb++ = c;
+ *fb++ = c;
+ *fb++ = c;
+ *fb++ = c;
+ cnt_8copy--;
+ }
+ while (cnt > 0) {
+ *fb++ = c;
+ cnt--;
+ }
+ *fbp = fb;
+}
+
+/*
+ * Do not call this function directly, must be called from lcd_display_bitmap.
+ */
+static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
+ int x_off, int y_off)
+{
+ uchar *bmap;
+ ulong width, height;
+ ulong cnt, runlen;
+ int x, y;
+ int decode = 1;
+
+ width = get_unaligned_le32(&bmp->header.width);
+ height = get_unaligned_le32(&bmp->header.height);
+ bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
+
+ x = 0;
+ y = height - 1;
+
+ while (decode) {
+ if (bmap[0] == BMP_RLE8_ESCAPE) {
+ switch (bmap[1]) {
+ case BMP_RLE8_EOL:
+ /* end of line */
+ bmap += 2;
+ x = 0;
+ y--;
+ /* 16bpix, 2-byte per pixel, width should *2 */
+ fb -= (width * 2 + lcd_line_length);
+ break;
+ case BMP_RLE8_EOBMP:
+ /* end of bitmap */
+ decode = 0;
+ break;
+ case BMP_RLE8_DELTA:
+ /* delta run */
+ x += bmap[2];
+ y -= bmap[3];
+ /* 16bpix, 2-byte per pixel, x should *2 */
+ fb = (uchar *) (lcd_base + (y + y_off - 1)
+ * lcd_line_length + (x + x_off) * 2);
+ bmap += 4;
+ break;
+ default:
+ /* unencoded run */
+ runlen = bmap[1];
+ bmap += 2;
+ if (y < height) {
+ if (x < width) {
+ if (x + runlen > width)
+ cnt = width - x;
+ else
+ cnt = runlen;
+ draw_unencoded_bitmap(
+ (ushort **)&fb,
+ bmap, cmap, cnt);
+ }
+ x += runlen;
+ }
+ bmap += runlen;
+ if (runlen & 1)
+ bmap++;
+ }
+ } else {
+ /* encoded run */
+ if (y < height) {
+ runlen = bmap[0];
+ if (x < width) {
+ /* aggregate the same code */
+ while (bmap[0] == 0xff &&
+ bmap[2] != BMP_RLE8_ESCAPE &&
+ bmap[1] == bmap[3]) {
+ runlen += bmap[2];
+ bmap += 2;
+ }
+ if (x + runlen > width)
+ cnt = width - x;
+ else
+ cnt = runlen;
+ draw_encoded_bitmap((ushort **)&fb,
+ cmap[bmap[1]], cnt);
+ }
+ x += runlen;
+ }
+ bmap += 2;
+ }
+ }
+}
+#endif
+
+#if defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
+#define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++)
+#else
+#define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++
+#endif
+
+#if defined(CONFIG_BMP_16BPP)
+#if defined(CONFIG_ATMEL_LCD_BGR555)
+static inline void fb_put_word(uchar **fb, uchar **from)
+{
+ *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
+ *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
+ *from += 2;
+}
+#else
+static inline void fb_put_word(uchar **fb, uchar **from)
+{
+ *(*fb)++ = *(*from)++;
+ *(*fb)++ = *(*from)++;
+}
+#endif
+#endif /* CONFIG_BMP_16BPP */
+
+int lcd_display_bitmap(ulong bmp_image, int x, int y)
+{
+#if !defined(CONFIG_MCC200)
+ ushort *cmap = NULL;
+#endif
+ ushort *cmap_base = NULL;
+ ushort i, j;
+ uchar *fb;
+ bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0);
+ uchar *bmap;
+ ushort padded_width;
+ unsigned long width, height, byte_width;
+ unsigned long pwidth = panel_info.vl_col;
+ unsigned colors, bpix, bmp_bpix;
+
+ if (!bmp || !(bmp->header.signature[0] == 'B' &&
+ bmp->header.signature[1] == 'M')) {
+ printf("Error: no valid bmp image at %lx\n", bmp_image);
+
+ return 1;
+ }
+
+ width = get_unaligned_le32(&bmp->header.width);
+ height = get_unaligned_le32(&bmp->header.height);
+ bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
+
+ colors = 1 << bmp_bpix;
+
+ bpix = NBITS(panel_info.vl_bpix);
+
+ if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
+ printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
+ bpix, bmp_bpix);
+
+ return 1;
+ }
+
+ /* We support displaying 8bpp BMPs on 16bpp LCDs */
+ if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) {
+ printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
+ bpix, get_unaligned_le16(&bmp->header.bit_count));
+ return 1;
+ }
+
+ debug("Display-bmp: %d x %d with %d colors\n",
+ (int)width, (int)height, (int)colors);
+
+#if !defined(CONFIG_MCC200)
+ /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
+ if (bmp_bpix == 8) {
+ cmap = configuration_get_cmap();
+ cmap_base = cmap;
+
+ /* Set color map */
+ for (i = 0; i < colors; ++i) {
+ bmp_color_table_entry_t cte = bmp->color_table[i];
+#if !defined(CONFIG_ATMEL_LCD)
+ ushort colreg =
+ ( ((cte.red) << 8) & 0xf800) |
+ ( ((cte.green) << 3) & 0x07e0) |
+ ( ((cte.blue) >> 3) & 0x001f) ;
+#ifdef CONFIG_SYS_INVERT_COLORS
+ *cmap = 0xffff - colreg;
+#else
+ *cmap = colreg;
+#endif
+#if defined(CONFIG_MPC823)
+ cmap--;
+#else
+ cmap++;
+#endif
+#else /* CONFIG_ATMEL_LCD */
+ lcd_setcolreg(i, cte.red, cte.green, cte.blue);
+#endif
+ }
+ }
+#endif
+ /*
+ * BMP format for Monochrome assumes that the state of a
+ * pixel is described on a per Bit basis, not per Byte.
+ * So, in case of Monochrome BMP we should align widths
+ * on a byte boundary and convert them from Bit to Byte
+ * units.
+ * Probably, PXA250 and MPC823 process 1bpp BMP images in
+ * their own ways, so make the converting to be MCC200
+ * specific.
+ */
+#if defined(CONFIG_MCC200)
+ if (bpix == 1) {
+ width = ((width + 7) & ~7) >> 3;
+ x = ((x + 7) & ~7) >> 3;
+ pwidth= ((pwidth + 7) & ~7) >> 3;
+ }
+#endif
+
+ padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
+
+#ifdef CONFIG_SPLASH_SCREEN_ALIGN
+ splash_align_axis(&x, pwidth, width);
+ splash_align_axis(&y, panel_info.vl_row, height);
+#endif /* CONFIG_SPLASH_SCREEN_ALIGN */
+
+ if ((x + width) > pwidth)
+ width = pwidth - x;
+ if ((y + height) > panel_info.vl_row)
+ height = panel_info.vl_row - y;
+
+ bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
+ fb = (uchar *)(lcd_base +
+ (y + height - 1) * lcd_line_length + x * bpix / 8);
+
+ switch (bmp_bpix) {
+ case 1: /* pass through */
+ case 8:
+#ifdef CONFIG_LCD_BMP_RLE8
+ u32 compression = get_unaligned_le32(&bmp->header.compression);
+ if (compression == BMP_BI_RLE8) {
+ if (bpix != 16) {
+ /* TODO implement render code for bpix != 16 */
+ printf("Error: only support 16 bpix");
+ return 1;
+ }
+ lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
+ break;
+ }
+#endif
+
+ if (bpix != 16)
+ byte_width = width;
+ else
+ byte_width = width * 2;
+
+ for (i = 0; i < height; ++i) {
+ WATCHDOG_RESET();
+ for (j = 0; j < width; j++) {
+ if (bpix != 16) {
+ FB_PUT_BYTE(fb, bmap);
+ } else {
+ *(uint16_t *)fb = cmap_base[*(bmap++)];
+ fb += sizeof(uint16_t) / sizeof(*fb);
+ }
+ }
+ bmap += (padded_width - width);
+ fb -= byte_width + lcd_line_length;
+ }
+ break;
+
+#if defined(CONFIG_BMP_16BPP)
+ case 16:
+ for (i = 0; i < height; ++i) {
+ WATCHDOG_RESET();
+ for (j = 0; j < width; j++)
+ fb_put_word(&fb, &bmap);
+
+ bmap += (padded_width - width) * 2;
+ fb -= width * 2 + lcd_line_length;
+ }
+ break;
+#endif /* CONFIG_BMP_16BPP */
+
+#if defined(CONFIG_BMP_32BPP)
+ case 32:
+ for (i = 0; i < height; ++i) {
+ for (j = 0; j < width; j++) {
+ *(fb++) = *(bmap++);
+ *(fb++) = *(bmap++);
+ *(fb++) = *(bmap++);
+ *(fb++) = *(bmap++);
+ }
+ fb -= lcd_line_length + width * (bpix / 8);
+ }
+ break;
+#endif /* CONFIG_BMP_32BPP */
+ default:
+ break;
+ };
+
+ lcd_sync();
+ return 0;
+}
+#endif
+
+static void *lcd_logo(void)
+{
+#ifdef CONFIG_SPLASH_SCREEN
+ char *s;
+ ulong addr;
+ static int do_splash = 1;
+
+ if (do_splash && (s = getenv("splashimage")) != NULL) {
+ int x = 0, y = 0;
+ do_splash = 0;
+
+ if (splash_screen_prepare())
+ return (void *)lcd_base;
+
+ addr = simple_strtoul (s, NULL, 16);
+
+ splash_get_pos(&x, &y);
+
+ if (bmp_display(addr, x, y) == 0)
+ return (void *)lcd_base;
+ }
+#endif /* CONFIG_SPLASH_SCREEN */
+
+ bitmap_plot(0, 0);
+
+#ifdef CONFIG_LCD_INFO
+ console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
+ console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
+ lcd_show_board_info();
+#endif /* CONFIG_LCD_INFO */
+
+#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
+ return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length);
+#else
+ return (void *)lcd_base;
+#endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */
+}
+
+#ifdef CONFIG_SPLASHIMAGE_GUARD
+static int on_splashimage(const char *name, const char *value, enum env_op op,
+ int flags)
+{
+ ulong addr;
+ int aligned;
+
+ if (op == env_op_delete)
+ return 0;
+
+ addr = simple_strtoul(value, NULL, 16);
+ /* See README.displaying-bmps */
+ aligned = (addr % 4 == 2);
+ if (!aligned) {
+ printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
+#endif
+
+void lcd_position_cursor(unsigned col, unsigned row)
+{
+ console_col = min(col, CONSOLE_COLS - 1);
+ console_row = min(row, CONSOLE_ROWS - 1);
+}
+
+int lcd_get_pixel_width(void)
+{
+ return panel_info.vl_col;
+}
+
+int lcd_get_pixel_height(void)
+{
+ return panel_info.vl_row;
+}
+
+int lcd_get_screen_rows(void)
+{
+ return CONSOLE_ROWS;
+}
+
+int lcd_get_screen_columns(void)
+{
+ return CONSOLE_COLS;
+}
+
+#if defined(CONFIG_LCD_DT_SIMPLEFB)
+static int lcd_dt_simplefb_configure_node(void *blob, int off)
+{
+ u32 stride;
+ fdt32_t cells[2];
+ int ret;
+ static const char format[] =
+#if LCD_BPP == LCD_COLOR16
+ "r5g6b5";
+#else
+ "";
+#endif
+
+ if (!format[0])
+ return -1;
+
+ stride = panel_info.vl_col * 2;
+
+ cells[0] = cpu_to_fdt32(gd->fb_base);
+ cells[1] = cpu_to_fdt32(stride * panel_info.vl_row);
+ ret = fdt_setprop(blob, off, "reg", cells, sizeof(cells[0]) * 2);
+ if (ret < 0)
+ return -1;
+
+ cells[0] = cpu_to_fdt32(panel_info.vl_col);
+ ret = fdt_setprop(blob, off, "width", cells, sizeof(cells[0]));
+ if (ret < 0)
+ return -1;
+
+ cells[0] = cpu_to_fdt32(panel_info.vl_row);
+ ret = fdt_setprop(blob, off, "height", cells, sizeof(cells[0]));
+ if (ret < 0)
+ return -1;
+
+ cells[0] = cpu_to_fdt32(stride);
+ ret = fdt_setprop(blob, off, "stride", cells, sizeof(cells[0]));
+ if (ret < 0)
+ return -1;
+
+ ret = fdt_setprop(blob, off, "format", format, strlen(format) + 1);
+ if (ret < 0)
+ return -1;
+
+ ret = fdt_delprop(blob, off, "status");
+ if (ret < 0)
+ return -1;
+
+ return 0;
+}
+
+int lcd_dt_simplefb_add_node(void *blob)
+{
+ static const char compat[] = "simple-framebuffer";
+ static const char disabled[] = "disabled";
+ int off, ret;
+
+ off = fdt_add_subnode(blob, 0, "framebuffer");
+ if (off < 0)
+ return -1;
+
+ ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled));
+ if (ret < 0)
+ return -1;
+
+ ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat));
+ if (ret < 0)
+ return -1;
+
+ return lcd_dt_simplefb_configure_node(blob, off);
+}
+
+int lcd_dt_simplefb_enable_existing_node(void *blob)
+{
+ int off;
+
+ off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer");
+ if (off < 0)
+ return -1;
+
+ return lcd_dt_simplefb_configure_node(blob, off);
+}
+#endif
Code Review / kvmfornfv.git / blobdiff