aboutsummaryrefslogtreecommitdiff
path: root/include/asm-m68k/dsp56k.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-m68k/dsp56k.h')
-rw-r--r--include/asm-m68k/dsp56k.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/include/asm-m68k/dsp56k.h b/include/asm-m68k/dsp56k.h
new file mode 100644
index 00000000000..ab3dd33e23a
--- /dev/null
+++ b/include/asm-m68k/dsp56k.h
@@ -0,0 +1,35 @@
+/*
+ * linux/include/asm-m68k/dsp56k.h - defines and declarations for
+ * DSP56k device driver
+ *
+ * Copyright (C) 1996,1997 Fredrik Noring, lars brinkhoff & Tomas Berndtsson
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+
+/* Used for uploading DSP binary code */
+struct dsp56k_upload {
+ int len;
+ char *bin;
+};
+
+/* For the DSP host flags */
+struct dsp56k_host_flags {
+ int dir; /* Bit field. 1 = write output bit, 0 = do nothing.
+ * 0x0000 means reading only, 0x0011 means
+ * writing the bits stored in `out' on HF0 and HF1.
+ * Note that HF2 and HF3 can only be read.
+ */
+ int out; /* Bit field like above. */
+ int status; /* Host register's current state is returned */
+};
+
+/* ioctl command codes */
+#define DSP56K_UPLOAD 1 /* Upload DSP binary program */
+#define DSP56K_SET_TX_WSIZE 2 /* Host transmit word size (1-4) */
+#define DSP56K_SET_RX_WSIZE 3 /* Host receive word size (1-4) */
+#define DSP56K_HOST_FLAGS 4 /* Host flag registers */
+#define DSP56K_HOST_CMD 5 /* Trig Host Command (0-31) */