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-rw-r--r--arch/sh/include/cpu-sh3/cpu/dac.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/sh/include/cpu-sh3/cpu/dac.h b/arch/sh/include/cpu-sh3/cpu/dac.h
new file mode 100644
index 000000000..fd0233160
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/dac.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_CPU_SH3_DAC_H
+#define __ASM_CPU_SH3_DAC_H
+
+/*
+ * Copyright (C) 2003 Andriy Skulysh
+ */
+
+
+#define DADR0 0xa40000a0
+#define DADR1 0xa40000a2
+#define DACR 0xa40000a4
+#define DACR_DAOE1 0x80
+#define DACR_DAOE0 0x40
+#define DACR_DAE 0x20
+
+
+static __inline__ void sh_dac_enable(int channel)
+{
+ unsigned char v;
+ v = __raw_readb(DACR);
+ if(channel) v |= DACR_DAOE1;
+ else v |= DACR_DAOE0;
+ __raw_writeb(v,DACR);
+}
+
+static __inline__ void sh_dac_disable(int channel)
+{
+ unsigned char v;
+ v = __raw_readb(DACR);
+ if(channel) v &= ~DACR_DAOE1;
+ else v &= ~DACR_DAOE0;
+ __raw_writeb(v,DACR);
+}
+
+static __inline__ void sh_dac_output(u8 value, int channel)
+{
+ if(channel) __raw_writeb(value,DADR1);
+ else __raw_writeb(value,DADR0);
+}
+
+#endif /* __ASM_CPU_SH3_DAC_H */