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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-10-15 11:31:54 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-10-15 11:31:54 +1100
commit6dc6472581f693b5fc95aebedf67b4960fb85cf0 (patch)
tree06a5a9a08519950575505273eabced331ed51405 /arch/mips/include/asm/rtlx.h
parentee673eaa72d8d185012b1027a05e25aba18c267f (diff)
parent8acd3a60bcca17c6d89c73cee3ad6057eb83ba1e (diff)
Merge commit 'origin'
Manual fixup of conflicts on: arch/powerpc/include/asm/dcr-regs.h drivers/net/ibm_newemac/core.h
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 000000000000..4ca3063ed2ce
--- /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_ */