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author | David S. Miller <davem@davemloft.net> | 2008-10-11 12:39:35 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2008-10-11 12:39:35 -0700 |
commit | 56c5d900dbb8e042bfad035d18433476931d8f93 (patch) | |
tree | 00b793965beeef10db03e0ff021d2d965c410759 /arch/mips/include/asm/rtlx.h | |
parent | 4dd95b63ae25c5cad6986829b5e8788e9faa0330 (diff) | |
parent | ead9d23d803ea3a73766c3cb27bf7563ac8d7266 (diff) | |
download | op-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.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 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_ */ |