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  1. /*
  2.  * Copyright (C) 2006 Ondrej Palkovsky
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #ifndef __LIBIPC_IPC_H__
  30. #define __LIBIPC_IPC_H__
  31.  
  32. #include <kernel/ipc/ipc.h>
  33. #include <kernel/ipc/irq.h>
  34. #include <libc.h>
  35. #include <types.h>
  36. #include <kernel/synch/synch.h>
  37.  
  38. typedef sysarg_t ipcarg_t;
  39. typedef struct {
  40.     ipcarg_t args[IPC_CALL_LEN];
  41.     ipcarg_t in_phone_hash;
  42. } ipc_call_t ;
  43. typedef sysarg_t ipc_callid_t;
  44.  
  45. typedef void (* ipc_async_callback_t)(void *private, int retval,
  46.                       ipc_call_t *data);
  47.  
  48. #define ipc_call_sync_2(phoneid, method, arg1, arg2, res1, res2) ipc_call_sync_3((phoneid), (method), (arg1), (arg2), 0, (res1), (res2), 0)
  49. extern int ipc_call_sync_3(int phoneid, ipcarg_t method, ipcarg_t arg1,
  50.                ipcarg_t arg2, ipcarg_t arg3,
  51.                ipcarg_t *result1, ipcarg_t *result2,
  52.                ipcarg_t *result3);
  53.  
  54.  
  55. extern int ipc_call_sync(int phoneid, ipcarg_t method, ipcarg_t arg1,
  56.              ipcarg_t *result);
  57. extern ipc_callid_t ipc_wait_cycle(ipc_call_t *call, uint32_t usec, int flags);
  58. extern ipc_callid_t ipc_wait_for_call_timeout(ipc_call_t *data, uint32_t usec);
  59. static inline ipc_callid_t ipc_wait_for_call(ipc_call_t *data)
  60. {
  61.     return ipc_wait_for_call_timeout(data, SYNCH_NO_TIMEOUT);
  62. }
  63. extern ipc_callid_t ipc_trywait_for_call(ipc_call_t *data);
  64.  
  65. extern ipcarg_t ipc_answer_fast(ipc_callid_t callid, ipcarg_t retval, ipcarg_t arg1,
  66.                ipcarg_t arg2);
  67. extern ipcarg_t ipc_answer(ipc_callid_t callid, ipc_call_t *call);
  68.  
  69. #define ipc_call_async(phoneid,method,arg1,private, callback,can_preempt) (ipc_call_async_2(phoneid, method, arg1, 0, private, callback, can_preempt))
  70. extern void ipc_call_async_2(int phoneid, ipcarg_t method, ipcarg_t arg1,
  71.               ipcarg_t arg2, void *private,
  72.               ipc_async_callback_t callback, int can_preempt);
  73. extern void ipc_call_async_3(int phoneid, ipcarg_t method, ipcarg_t arg1,
  74.                  ipcarg_t arg2, ipcarg_t arg3, void *private,
  75.                  ipc_async_callback_t callback, int can_preempt);
  76.  
  77. extern int ipc_connect_to_me(int phoneid, int arg1, int arg2, ipcarg_t *phone);
  78. extern int ipc_connect_me_to(int phoneid, int arg1, int arg2);
  79. extern int ipc_hangup(int phoneid);
  80. extern int ipc_register_irq(int irq, irq_code_t *code);
  81. extern int ipc_unregister_irq(int irq);
  82. extern int ipc_forward_fast(ipc_callid_t callid, int phoneid, int method, ipcarg_t arg1);
  83.  
  84.  
  85. /* Primitve functions for IPC communication */
  86. void send_call_3(int phoneid, ipcarg_t method, ipcarg_t arg1, ipcarg_t arg2,
  87.          ipcarg_t arg3);
  88. void send_call_2(int phoneid, ipcarg_t method, ipcarg_t arg1, ipcarg_t arg2);
  89. #define send_call(ph,m,a1) send_call_2(ph,m,a1,0)
  90. /* These functions never preempt */
  91. void nsend_call_3(int phoneid, ipcarg_t method, ipcarg_t arg1,
  92.           ipcarg_t arg2, ipcarg_t arg3);
  93. void nsend_call_2(int phoneid, ipcarg_t method, ipcarg_t arg1, ipcarg_t arg2);
  94. #define nsend_call(ph,m,a1) nsend_call_2(ph,m,a1,0)
  95.  
  96. #endif
  97.