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authorDavid S. Miller <davem@davemloft.net>2008-10-11 12:39:35 -0700
committerDavid S. Miller <davem@davemloft.net>2008-10-11 12:39:35 -0700
commit56c5d900dbb8e042bfad035d18433476931d8f93 (patch)
tree00b793965beeef10db03e0ff021d2d965c410759 /arch/mips/include/asm/rtlx.h
parent4dd95b63ae25c5cad6986829b5e8788e9faa0330 (diff)
parentead9d23d803ea3a73766c3cb27bf7563ac8d7266 (diff)
downloadop-kernel-dev-56c5d900dbb8e042bfad035d18433476931d8f93.zip
op-kernel-dev-56c5d900dbb8e042bfad035d18433476931d8f93.tar.gz
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: sound/core/memalloc.c
Diffstat (limited to 'arch/mips/include/asm/rtlx.h')
-rw-r--r--arch/mips/include/asm/rtlx.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/mips/include/asm/rtlx.h b/arch/mips/include/asm/rtlx.h
new file mode 100644
index 0000000..4ca3063
--- /dev/null
+++ b/arch/mips/include/asm/rtlx.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2004, 2005 MIPS Technologies, Inc. All rights reserved.
+ *
+ */
+
+#ifndef __ASM_RTLX_H_
+#define __ASM_RTLX_H_
+
+#include <irq.h>
+
+#define LX_NODE_BASE 10
+
+#define MIPS_CPU_RTLX_IRQ 0
+
+#define RTLX_VERSION 2
+#define RTLX_xID 0x12345600
+#define RTLX_ID (RTLX_xID | RTLX_VERSION)
+#define RTLX_CHANNELS 8
+
+#define RTLX_CHANNEL_STDIO 0
+#define RTLX_CHANNEL_DBG 1
+#define RTLX_CHANNEL_SYSIO 2
+
+extern int rtlx_open(int index, int can_sleep);
+extern int rtlx_release(int index);
+extern ssize_t rtlx_read(int index, void __user *buff, size_t count);
+extern ssize_t rtlx_write(int index, const void __user *buffer, size_t count);
+extern unsigned int rtlx_read_poll(int index, int can_sleep);
+extern unsigned int rtlx_write_poll(int index);
+
+enum rtlx_state {
+ RTLX_STATE_UNUSED = 0,
+ RTLX_STATE_INITIALISED,
+ RTLX_STATE_REMOTE_READY,
+ RTLX_STATE_OPENED
+};
+
+#define RTLX_BUFFER_SIZE 2048
+
+/* each channel supports read and write.
+ linux (vpe0) reads lx_buffer and writes rt_buffer
+ SP (vpe1) reads rt_buffer and writes lx_buffer
+*/
+struct rtlx_channel {
+ enum rtlx_state rt_state;
+ enum rtlx_state lx_state;
+
+ int buffer_size;
+
+ /* read and write indexes per buffer */
+ int rt_write, rt_read;
+ char *rt_buffer;
+
+ int lx_write, lx_read;
+ char *lx_buffer;
+};
+
+struct rtlx_info {
+ unsigned long id;
+ enum rtlx_state state;
+
+ struct rtlx_channel channel[RTLX_CHANNELS];
+};
+
+#endif /* __ASM_RTLX_H_ */
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