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  1. /*
  2.  * Copyright (c) 2006 Martin Decky
  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 kbd_port
  30.  * @ingroup  kbd
  31.  * @{
  32.  */
  33. /** @file
  34.  * @brief   Z8530 keyboard port driver.
  35.  */
  36.  
  37. #include <ipc/ipc.h>
  38. #include <ipc/bus.h>
  39. #include <async.h>
  40. #include <sysinfo.h>
  41. #include <kbd.h>
  42. #include <kbd_port.h>
  43. #include <sun.h>
  44. #include <sys/types.h>
  45. #include <ddi.h>
  46.  
  47. #define CHAN_A_STATUS   4
  48. #define CHAN_A_DATA 6
  49.  
  50. #define RR0_RCA 1
  51.  
  52. static irq_cmd_t z8530_cmds[] = {
  53.     {
  54.         .cmd = CMD_PIO_READ_8,
  55.         .addr = (void *) 0, /* will be patched in run-time */
  56.         .dstarg = 1
  57.     },
  58.     {
  59.         .cmd = CMD_BTEST,
  60.         .value = RR0_RCA,
  61.         .srcarg = 1,
  62.         .dstarg = 3
  63.     },
  64.     {
  65.         .cmd = CMD_PREDICATE,
  66.         .value = 2,
  67.         .srcarg = 3
  68.     },
  69.     {
  70.         .cmd = CMD_PIO_READ_8,
  71.         .addr = (void *) 0, /* will be patched in run-time */
  72.         .dstarg = 2
  73.     },
  74.     {
  75.         .cmd = CMD_ACCEPT
  76.     }
  77. };
  78.    
  79. irq_code_t z8530_kbd = {
  80.     sizeof(z8530_cmds) / sizeof(irq_cmd_t),
  81.     z8530_cmds
  82. };
  83.  
  84. static void z8530_irq_handler(ipc_callid_t iid, ipc_call_t *call);
  85.  
  86. int z8530_port_init(void)
  87. {
  88.     async_set_interrupt_received(z8530_irq_handler);
  89.     z8530_cmds[0].addr = (void *) sysinfo_value("kbd.address.kernel") +
  90.         CHAN_A_STATUS;
  91.     z8530_cmds[3].addr = (void *) sysinfo_value("kbd.address.kernel") +
  92.         CHAN_A_DATA;
  93.     ipc_register_irq(sysinfo_value("kbd.inr"), device_assign_devno(),
  94.         sysinfo_value("kbd.inr"), &z8530_kbd);
  95.     return 0;
  96. }
  97.  
  98. void z8530_port_yield(void)
  99. {
  100. }
  101.  
  102. void z8530_port_reclaim(void)
  103. {
  104. }
  105.  
  106. static void z8530_irq_handler(ipc_callid_t iid, ipc_call_t *call)
  107. {
  108.     int scan_code = IPC_GET_ARG2(*call);
  109.     kbd_push_scancode(scan_code);
  110.    
  111.     if (cir_service)
  112.         async_msg_1(cir_phone, BUS_CLEAR_INTERRUPT,
  113.             IPC_GET_METHOD(*call));
  114. }
  115.  
  116. /** @}
  117.  */
  118.