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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. /** @addtogroup genericipc
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef KERN_IPC_IRQ_H_
  36. #define KERN_IPC_IRQ_H_
  37.  
  38. /** Maximum length of IPC IRQ program */
  39. #define IRQ_MAX_PROG_SIZE 10
  40.  
  41. typedef enum {
  42.     CMD_MEM_READ_1 = 0,
  43.     CMD_MEM_READ_2,
  44.     CMD_MEM_READ_4,
  45.     CMD_MEM_READ_8,
  46.     CMD_MEM_WRITE_1,
  47.     CMD_MEM_WRITE_2,
  48.     CMD_MEM_WRITE_4,
  49.     CMD_MEM_WRITE_8,
  50.     CMD_PORT_READ_1,
  51.     CMD_PORT_WRITE_1,
  52.     CMD_IA64_GETCHAR,
  53.     CMD_PPC32_GETCHAR,
  54.     CMD_LAST
  55. } irq_cmd_type;
  56.  
  57. typedef struct {
  58.     irq_cmd_type cmd;
  59.     void *addr;
  60.     unsigned long long value;
  61.     int dstarg;
  62. } irq_cmd_t;
  63.  
  64. typedef struct {
  65.     unsigned int cmdcount;
  66.     irq_cmd_t *cmds;
  67. } irq_code_t;
  68.  
  69. #ifdef KERNEL
  70.  
  71. #include <ipc/ipc.h>
  72. #include <typedefs.h>
  73. #include <arch/types.h>
  74. #include <adt/list.h>
  75.  
  76. /** IPC notification config structure.
  77.  *
  78.  * Primarily, this structure is encapsulated in the irq_t structure.
  79.  * It is protected by irq_t::lock.
  80.  */
  81. struct ipc_notif_cfg {
  82.     bool notify;            /**< When false, notifications are not sent. */
  83.     answerbox_t *answerbox;     /**< Answerbox for notifications. */
  84.     unative_t method;       /**< Method to be used for the notification. */
  85.     irq_code_t *code;       /**< Top-half pseudocode. */
  86.     count_t counter;        /**< Counter. */
  87.     link_t link;            /**< Link between IRQs that are notifying the
  88.                          same answerbox. The list is protected by
  89.                          the answerbox irq_lock. */
  90. };
  91.  
  92. extern int ipc_irq_register(answerbox_t *box, inr_t inr, devno_t devno, unative_t method,
  93.     irq_code_t *ucode);
  94. extern void ipc_irq_send_notif(irq_t *irq);
  95. extern void ipc_irq_send_msg(irq_t *irq, unative_t a1, unative_t a2, unative_t a3);
  96. extern void ipc_irq_unregister(answerbox_t *box, inr_t inr, devno_t devno);
  97. extern void ipc_irq_cleanup(answerbox_t *box);
  98.  
  99. #endif
  100.  
  101. #endif
  102.  
  103. /** @}
  104.  */
  105.