diff options
author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-15 11:31:54 +1100 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-15 11:31:54 +1100 |
commit | 6dc6472581f693b5fc95aebedf67b4960fb85cf0 (patch) | |
tree | 06a5a9a08519950575505273eabced331ed51405 /arch/mips/include/asm/rtlx.h | |
parent | ee673eaa72d8d185012b1027a05e25aba18c267f (diff) | |
parent | 8acd3a60bcca17c6d89c73cee3ad6057eb83ba1e (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.h | 65 |
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_ */ |