Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / drivers / misc / pdsp188x.c

diff --git a/qemu/roms/u-boot/drivers/misc/pdsp188x.c b/qemu/roms/u-boot/drivers/misc/pdsp188x.c
new file mode 100644 (file)
index 0000000..aa4351a
--- /dev/null
+++ b/qemu/roms/u-boot/drivers/misc/pdsp188x.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2010 Sergey Poselenov, Emcraft Systems, <sposelenov@emcraft.com>
+ * Copyright 2010 Ilya Yanok, Emcraft Systems, <yanok@emcraft.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <led-display.h>
+#include <asm/io.h>
+
+#ifdef CONFIG_CMD_DISPLAY
+#define CWORD_CLEAR    0x80
+#define CLEAR_DELAY    (110 * 2)
+#define DISPLAY_SIZE   8
+
+static int pos; /* Current display position */
+
+/* Handle different display commands */
+void display_set(int cmd)
+{
+       if (cmd & DISPLAY_CLEAR) {
+               out_8((unsigned char *)CONFIG_SYS_DISP_CWORD, CWORD_CLEAR);
+               udelay(1000 * CLEAR_DELAY);
+       }
+
+       if (cmd & DISPLAY_HOME) {
+               pos = 0;
+       }
+}
+
+/*
+ * Display a character at the current display position.
+ * Characters beyond the display size are ignored.
+ */
+int display_putc(char c)
+{
+       if (pos >= DISPLAY_SIZE)
+               return -1;
+
+       out_8((unsigned char *)CONFIG_SYS_DISP_CHR_RAM + pos++, c);
+
+       return c;
+}
+#endif