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88 lines
2.1 KiB
88 lines
2.1 KiB
/* |
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* This file is subject to the terms and conditions of the GNU General Public |
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* License. See the file "COPYING" in the main directory of this archive |
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* for more details. |
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* |
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* Copyright (C) 2004, 2005 MIPS Technologies, Inc. All rights reserved. |
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* Copyright (C) 2013 Imagination Technologies Ltd. |
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*/ |
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#ifndef __ASM_RTLX_H_ |
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#define __ASM_RTLX_H_ |
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#include <irq.h> |
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#define RTLX_MODULE_NAME "rtlx" |
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#define LX_NODE_BASE 10 |
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#define MIPS_CPU_RTLX_IRQ 0 |
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#define RTLX_VERSION 2 |
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#define RTLX_xID 0x12345600 |
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#define RTLX_ID (RTLX_xID | RTLX_VERSION) |
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#define RTLX_BUFFER_SIZE 2048 |
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#define RTLX_CHANNELS 8 |
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#define RTLX_CHANNEL_STDIO 0 |
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#define RTLX_CHANNEL_DBG 1 |
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#define RTLX_CHANNEL_SYSIO 2 |
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void rtlx_starting(int vpe); |
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void rtlx_stopping(int vpe); |
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int rtlx_open(int index, int can_sleep); |
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int rtlx_release(int index); |
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ssize_t rtlx_read(int index, void __user *buff, size_t count); |
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ssize_t rtlx_write(int index, const void __user *buffer, size_t count); |
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unsigned int rtlx_read_poll(int index, int can_sleep); |
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unsigned int rtlx_write_poll(int index); |
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int __init rtlx_module_init(void); |
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void __exit rtlx_module_exit(void); |
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void _interrupt_sp(void); |
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extern struct vpe_notifications rtlx_notify; |
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extern const struct file_operations rtlx_fops; |
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extern void (*aprp_hook)(void); |
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enum rtlx_state { |
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RTLX_STATE_UNUSED = 0, |
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RTLX_STATE_INITIALISED, |
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RTLX_STATE_REMOTE_READY, |
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RTLX_STATE_OPENED |
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}; |
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extern struct chan_waitqueues { |
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wait_queue_head_t rt_queue; |
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wait_queue_head_t lx_queue; |
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atomic_t in_open; |
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struct mutex mutex; |
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} channel_wqs[RTLX_CHANNELS]; |
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/* each channel supports read and write. |
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linux (vpe0) reads lx_buffer and writes rt_buffer |
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SP (vpe1) reads rt_buffer and writes lx_buffer |
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*/ |
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struct rtlx_channel { |
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enum rtlx_state rt_state; |
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enum rtlx_state lx_state; |
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int buffer_size; |
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/* read and write indexes per buffer */ |
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int rt_write, rt_read; |
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char *rt_buffer; |
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int lx_write, lx_read; |
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char *lx_buffer; |
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}; |
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extern struct rtlx_info { |
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unsigned long id; |
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enum rtlx_state state; |
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int ap_int_pending; /* Status of 0 or 1 for CONFIG_MIPS_CMP only */ |
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struct rtlx_channel channel[RTLX_CHANNELS]; |
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} *rtlx; |
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#endif /* __ASM_RTLX_H_ */
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