Subversion Repositories HelenOS

Rev

Rev 1875 | Rev 2071 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  1. /*
  2.  * Copyright (C) 2006 Jakub Jermar
  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 genarch
  30.  * @{
  31.  */
  32. /**
  33.  * @file
  34.  * @brief   Key processing.
  35.  */
  36.  
  37. #include <genarch/kbd/key.h>
  38. #include <genarch/kbd/scanc.h>
  39. #ifdef CONFIG_I8042
  40. #include <genarch/kbd/scanc_pc.h>
  41. #endif
  42. #if (defined(CONFIG_Z8530) || defined(CONFIG_NS16550))
  43. #include <genarch/kbd/scanc_sun.h>
  44. #endif
  45. #include <synch/spinlock.h>
  46. #include <console/chardev.h>
  47. #include <typedefs.h>
  48. #include <macros.h>
  49.  
  50. #define PRESSED_SHIFT       (1<<0)
  51. #define PRESSED_CAPSLOCK    (1<<1)
  52. #define LOCKED_CAPSLOCK     (1<<0)
  53.  
  54. #define ACTIVE_READ_BUFF_SIZE 16    /* Must be power of 2 */
  55.  
  56. chardev_t kbrd;
  57.  
  58. static uint8_t active_read_buff[ACTIVE_READ_BUFF_SIZE];
  59.  
  60. SPINLOCK_INITIALIZE(keylock);       /**< keylock protects keyflags and lockflags. */
  61. static volatile int keyflags;       /**< Tracking of multiple keypresses. */
  62. static volatile int lockflags;      /**< Tracking of multiple keys lockings. */
  63.  
  64. /** Process release of key.
  65.  *
  66.  * @param sc Scancode of the key being released.
  67.  */
  68. void key_released(uint8_t sc)
  69. {
  70.     spinlock_lock(&keylock);
  71.     switch (sc) {
  72.     case SC_LSHIFT:
  73.     case SC_RSHIFT:
  74.         keyflags &= ~PRESSED_SHIFT;
  75.         break;
  76.     case SC_CAPSLOCK:
  77.         keyflags &= ~PRESSED_CAPSLOCK;
  78.         if (lockflags & LOCKED_CAPSLOCK)
  79.             lockflags &= ~LOCKED_CAPSLOCK;
  80.         else
  81.             lockflags |= LOCKED_CAPSLOCK;
  82.         break;
  83.     default:
  84.         break;
  85.     }
  86.     spinlock_unlock(&keylock);
  87. }
  88.  
  89. /** Process keypress.
  90.  *
  91.  * @param sc Scancode of the key being pressed.
  92.  */
  93. void key_pressed(uint8_t sc)
  94. {
  95.     char *map = sc_primary_map;
  96.     char ascii = sc_primary_map[sc];
  97.     bool shift, capslock;
  98.     bool letter = false;
  99.  
  100.     spinlock_lock(&keylock);
  101.     switch (sc) {
  102.     case SC_LSHIFT:
  103.     case SC_RSHIFT:
  104.             keyflags |= PRESSED_SHIFT;
  105.         break;
  106.     case SC_CAPSLOCK:
  107.         keyflags |= PRESSED_CAPSLOCK;
  108.         break;
  109.     case SC_SPEC_ESCAPE:
  110.         break;
  111.     case SC_LEFTARR:
  112.         chardev_push_character(&kbrd, 0x1b);
  113.         chardev_push_character(&kbrd, 0x5b);
  114.         chardev_push_character(&kbrd, 0x44);
  115.         break;
  116.     case SC_RIGHTARR:
  117.         chardev_push_character(&kbrd, 0x1b);
  118.         chardev_push_character(&kbrd, 0x5b);
  119.         chardev_push_character(&kbrd, 0x43);
  120.         break;
  121.     case SC_UPARR:
  122.         chardev_push_character(&kbrd, 0x1b);
  123.         chardev_push_character(&kbrd, 0x5b);
  124.         chardev_push_character(&kbrd, 0x41);
  125.         break;
  126.     case SC_DOWNARR:
  127.         chardev_push_character(&kbrd, 0x1b);
  128.         chardev_push_character(&kbrd, 0x5b);
  129.         chardev_push_character(&kbrd, 0x42);
  130.         break;
  131.     case SC_HOME:
  132.         chardev_push_character(&kbrd, 0x1b);
  133.         chardev_push_character(&kbrd, 0x4f);
  134.         chardev_push_character(&kbrd, 0x48);
  135.         break;
  136.     case SC_END:
  137.         chardev_push_character(&kbrd, 0x1b);
  138.         chardev_push_character(&kbrd, 0x4f);
  139.         chardev_push_character(&kbrd, 0x46);
  140.         break;
  141.     case SC_DELETE:
  142.         chardev_push_character(&kbrd, 0x1b);
  143.         chardev_push_character(&kbrd, 0x5b);
  144.         chardev_push_character(&kbrd, 0x33);
  145.         chardev_push_character(&kbrd, 0x7e);
  146.         break;
  147.     default:
  148.             letter = is_lower(ascii);
  149.         capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK);
  150.         shift = keyflags & PRESSED_SHIFT;
  151.         if (letter && capslock)
  152.             shift = !shift;
  153.         if (shift)
  154.             map = sc_secondary_map;
  155.         chardev_push_character(&kbrd, map[sc]);
  156.         break;
  157.     }
  158.     spinlock_unlock(&keylock);
  159. }
  160.  
  161. uint8_t active_read_buff_read(void)
  162. {
  163.     static int i=0;
  164.     i &= (ACTIVE_READ_BUFF_SIZE-1);
  165.     if(!active_read_buff[i]) {
  166.         return 0;
  167.     }
  168.     return active_read_buff[i++];
  169. }
  170.  
  171. void active_read_buff_write(uint8_t ch)
  172. {
  173.     static int i=0;
  174.     active_read_buff[i] = ch;
  175.     i++;
  176.     i &= (ACTIVE_READ_BUFF_SIZE-1);
  177.     active_read_buff[i]=0;
  178. }
  179.  
  180.  
  181. void active_read_key_pressed(uint8_t sc)
  182. {
  183.     char *map = sc_primary_map;
  184.     char ascii = sc_primary_map[sc];
  185.     bool shift, capslock;
  186.     bool letter = false;
  187.  
  188.     /*spinlock_lock(&keylock);*/
  189.     switch (sc) {
  190.     case SC_LSHIFT:
  191.     case SC_RSHIFT:
  192.             keyflags |= PRESSED_SHIFT;
  193.         break;
  194.     case SC_CAPSLOCK:
  195.         keyflags |= PRESSED_CAPSLOCK;
  196.         break;
  197.     case SC_SPEC_ESCAPE:
  198.         break;
  199.     case SC_LEFTARR:
  200.         active_read_buff_write(0x1b);
  201.         active_read_buff_write(0x5b);
  202.         active_read_buff_write(0x44);
  203.         break;
  204.     case SC_RIGHTARR:
  205.         active_read_buff_write(0x1b);
  206.         active_read_buff_write(0x5b);
  207.         active_read_buff_write(0x43);
  208.         break;
  209.     case SC_UPARR:
  210.         active_read_buff_write(0x1b);
  211.         active_read_buff_write(0x5b);
  212.         active_read_buff_write(0x41);
  213.         break;
  214.     case SC_DOWNARR:
  215.         active_read_buff_write(0x1b);
  216.         active_read_buff_write(0x5b);
  217.         active_read_buff_write(0x42);
  218.         break;
  219.     case SC_HOME:
  220.         active_read_buff_write(0x1b);
  221.         active_read_buff_write(0x4f);
  222.         active_read_buff_write(0x48);
  223.         break;
  224.     case SC_END:
  225.         active_read_buff_write(0x1b);
  226.         active_read_buff_write(0x4f);
  227.         active_read_buff_write(0x46);
  228.         break;
  229.     case SC_DELETE:
  230.         active_read_buff_write(0x1b);
  231.         active_read_buff_write(0x5b);
  232.         active_read_buff_write(0x33);
  233.         active_read_buff_write(0x7e);
  234.         break;
  235.     default:
  236.             letter = is_lower(ascii);
  237.         capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK);
  238.         shift = keyflags & PRESSED_SHIFT;
  239.         if (letter && capslock)
  240.             shift = !shift;
  241.         if (shift)
  242.             map = sc_secondary_map;
  243.         active_read_buff_write(map[sc]);
  244.         break;
  245.     }
  246.     /*spinlock_unlock(&keylock);*/
  247.  
  248. }
  249.  
  250. /** @}
  251.  */
  252.