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  1. /*
  2.  * Copyright (c) 2005 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 sparc64
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #include <arch/console.h>
  36. #include <arch/types.h>
  37.  
  38. #include <arch/drivers/scr.h>
  39. #include <arch/drivers/kbd.h>
  40.  
  41. #ifdef CONFIG_Z8530
  42. #include <genarch/kbd/z8530.h>
  43. #endif
  44. #ifdef CONFIG_NS16550
  45. #include <genarch/kbd/ns16550.h>
  46. #endif
  47.  
  48. #include <console/chardev.h>
  49. #include <console/console.h>
  50. #include <arch/asm.h>
  51. #include <arch/register.h>
  52. #include <proc/thread.h>
  53. #include <arch/mm/tlb.h>
  54. #include <genarch/ofw/ofw_tree.h>
  55. #include <arch.h>
  56. #include <panic.h>
  57. #include <print.h>
  58.  
  59. #define KEYBOARD_POLL_PAUSE 50000   /* 50ms */
  60.  
  61. /** Initialize kernel console to use framebuffer and keyboard directly. */
  62. void standalone_sparc64_console_init(void)
  63. {
  64.     stdin = NULL;
  65.  
  66.     ofw_tree_node_t *aliases;
  67.     ofw_tree_property_t *prop;
  68.     ofw_tree_node_t *screen;
  69.     ofw_tree_node_t *keyboard;
  70.    
  71.     aliases = ofw_tree_lookup("/aliases");
  72.     if (!aliases)
  73.         panic("Can't find /aliases.\n");
  74.    
  75.     prop = ofw_tree_getprop(aliases, "screen");
  76.     if (!prop)
  77.         panic("Can't find property \"screen\".\n");
  78.     if (!prop->value)
  79.         panic("Can't find screen alias.\n");
  80.     screen = ofw_tree_lookup(prop->value);
  81.     if (!screen)
  82.         panic("Can't find %s\n", prop->value);
  83.  
  84.     scr_init(screen);
  85.  
  86.     prop = ofw_tree_getprop(aliases, "keyboard");
  87.     if (!prop)
  88.         panic("Can't find property \"keyboard\".\n");
  89.     if (!prop->value)
  90.         panic("Can't find keyboard alias.\n");
  91.     keyboard = ofw_tree_lookup(prop->value);
  92.     if (!keyboard)
  93.         panic("Can't find %s\n", prop->value);
  94.  
  95.     kbd_init(keyboard);
  96. }
  97.  
  98. /** Kernel thread for polling keyboard.
  99.  *
  100.  * @param arg Ignored.
  101.  */
  102. void kkbdpoll(void *arg)
  103. {
  104.     thread_detach(THREAD);
  105.  
  106. #ifdef CONFIG_Z8530
  107.     if (kbd_type == KBD_Z8530) {
  108.         /*
  109.          * The z8530 driver is interrupt-driven.
  110.          */
  111.         return;
  112.     }
  113. #endif
  114.  
  115.     while (1) {
  116. #ifdef CONFIG_NS16550
  117.         if (kbd_type == KBD_NS16550)
  118.             ns16550_poll();
  119. #endif
  120.         thread_usleep(KEYBOARD_POLL_PAUSE);
  121.     }
  122. }
  123.  
  124. /** Acquire console back for kernel
  125.  *
  126.  */
  127. void arch_grab_console(void)
  128. {
  129.     switch (kbd_type) {
  130. #ifdef CONFIG_Z8530
  131.     case KBD_Z8530:
  132.         z8530_grab();
  133.         break;
  134. #endif
  135. #ifdef CONFIG_NS16550
  136.     case KBD_NS16550:
  137.         ns16550_grab();
  138.         break;
  139. #endif
  140.     default:
  141.         break;
  142.     }
  143. }
  144.  
  145. /** Return console to userspace
  146.  *
  147.  */
  148. void arch_release_console(void)
  149. {
  150.     switch (kbd_type) {
  151. #ifdef CONFIG_Z8530
  152.     case KBD_Z8530:
  153.         z8530_release();
  154.         break;
  155. #endif
  156. #ifdef CONFIG_NS16550
  157.     case KBD_NS16550:
  158.         ns16550_release();
  159.         break;
  160. #endif
  161.     default:
  162.         break;
  163.     }
  164. }
  165.  
  166. /** @}
  167.  */
  168.