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path: root/drivers/video/sandbox_sdl.c
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Diffstat (limited to 'drivers/video/sandbox_sdl.c')
-rw-r--r--drivers/video/sandbox_sdl.c79
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 0000000000..ba4578e9d1
--- /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;
+}