1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/video/sandbox_sdl.c b/drivers/video/sandbox_sdl.c
new file mode 100644
index 000000000..ba4578e9d
--- /dev/null
+++ b/drivers/video/sandbox_sdl.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2013 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <fdtdec.h>
+#include <lcd.h>
+#include <malloc.h>
+#include <asm/sdl.h>
+#include <asm/u-boot-sandbox.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+enum {
+	/* Maximum LCD size we support */
+	LCD_MAX_WIDTH		= 1366,
+	LCD_MAX_HEIGHT		= 768,
+	LCD_MAX_LOG2_BPP	= 4,		/* 2^4 = 16 bpp */
+};
+
+vidinfo_t panel_info;
+
+void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue)
+{
+}
+
+void lcd_ctrl_init(void *lcdbase)
+{
+	/*
+	 * Allocate memory to keep BMP color conversion map. This is required
+	 * for 8 bit BMPs only (hence 256 colors). If malloc fails - keep
+	 * going, it is not even clear if displyaing the bitmap will be
+	 * required on the way up.
+	 */
+	panel_info.cmap = malloc(256 * NBITS(panel_info.vl_bpix) / 8);
+}
+
+void lcd_enable(void)
+{
+	if (sandbox_sdl_init_display(panel_info.vl_col, panel_info.vl_row,
+				     panel_info.vl_bpix))
+		puts("LCD init failed\n");
+}
+
+int sandbox_lcd_sdl_early_init(void)
+{
+	const void *blob = gd->fdt_blob;
+	int xres = LCD_MAX_WIDTH, yres = LCD_MAX_HEIGHT;
+	int node;
+	int ret = 0;
+
+	/*
+	 * The code in common/lcd.c does not cope with not being able to
+	 * set up a frame buffer. It will just happily keep writing to
+	 * invalid memory. So here we make sure that at least some buffer
+	 * is available even if it actually won't be displayed.
+	 */
+	node = fdtdec_next_compatible(blob, 0, COMPAT_SANDBOX_LCD_SDL);
+	if (node >= 0) {
+		xres = fdtdec_get_int(blob, node, "xres", LCD_MAX_WIDTH);
+		yres = fdtdec_get_int(blob, node, "yres", LCD_MAX_HEIGHT);
+		if (xres < 0 || xres > LCD_MAX_WIDTH) {
+			xres = LCD_MAX_WIDTH;
+			ret = -EINVAL;
+		}
+		if (yres < 0 || yres > LCD_MAX_HEIGHT) {
+			yres = LCD_MAX_HEIGHT;
+			ret = -EINVAL;
+		}
+	}
+
+	panel_info.vl_col = xres;
+	panel_info.vl_row = yres;
+	panel_info.vl_bpix = LCD_COLOR16;
+
+	return ret;
+}