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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. #include <arch/drivers/sgcn.h>
  42.  
  43. #include <console/chardev.h>
  44. #include <console/console.h>
  45. #include <arch/asm.h>
  46. #include <arch/register.h>
  47. #include <proc/thread.h>
  48. #include <arch/mm/tlb.h>
  49. #include <genarch/ofw/ofw_tree.h>
  50. #include <arch.h>
  51. #include <panic.h>
  52. #include <string.h>
  53. #include <print.h>
  54.  
  55. #define KEYBOARD_POLL_PAUSE 50000   /* 50ms */
  56.  
  57. /**
  58.  * Initialize kernel console to use framebuffer and keyboard directly.
  59.  * Called on UltraSPARC machines with standard keyboard and framebuffer.
  60.  *
  61.  * @param aliases   the "/aliases" OBP node
  62.  */
  63. static void standard_console_init(ofw_tree_node_t *aliases)
  64. {
  65. #ifdef CONFIG_FB
  66.     ofw_tree_property_t *prop;
  67.     ofw_tree_node_t *screen;
  68.     ofw_tree_node_t *keyboard;
  69.    
  70.     prop = ofw_tree_getprop(aliases, "screen");
  71.     if (!prop)
  72.         panic("Cannot find property 'screen'.");
  73.     if (!prop->value)
  74.         panic("Cannot find screen alias.");
  75.     screen = ofw_tree_lookup(prop->value);
  76.     if (!screen)
  77.         panic("Cannot find %s.", prop->value);
  78.  
  79.     scr_init(screen);
  80.  
  81.     prop = ofw_tree_getprop(aliases, "keyboard");
  82.     if (!prop)
  83.         panic("Cannot find property 'keyboard'.");
  84.     if (!prop->value)
  85.         panic("Cannot find keyboard alias.");
  86.     keyboard = ofw_tree_lookup(prop->value);
  87.     if (!keyboard)
  88.         panic("Cannot find %s.", prop->value);
  89.  
  90.     kbd_init(keyboard);
  91. #else
  92.     panic("Standard console requires FB, "
  93.           "but the kernel is not compiled with FB support.");
  94. #endif
  95. }
  96.  
  97. /** Initilize I/O on the Serengeti machine. */
  98. static void serengeti_init(void)
  99. {
  100.     sgcn_init();
  101. }
  102.  
  103. /**
  104.  * Initialize input/output. Auto-detects the type of machine
  105.  * and calls the appropriate I/O init routine.
  106.  */
  107. void standalone_sparc64_console_init(void)
  108. {
  109.     ofw_tree_node_t *aliases;
  110.     ofw_tree_property_t *prop;
  111.    
  112.     aliases = ofw_tree_lookup("/aliases");
  113.     if (!aliases)
  114.         panic("Cannot find '/aliases'.");
  115.    
  116.     /* "def-cn" = "default console" */
  117.     prop = ofw_tree_getprop(aliases, "def-cn");
  118.    
  119.     if ((!prop) || (!prop->value) || (strcmp(prop->value, "/sgcn") != 0)) {
  120.         standard_console_init(aliases);
  121.     } else {
  122.         serengeti_init();
  123.     }
  124. }
  125.  
  126.  
  127. /** Kernel thread for polling keyboard.
  128.  *
  129.  * @param arg Ignored.
  130.  */
  131. void kkbdpoll(void *arg)
  132. {
  133.     thread_detach(THREAD);
  134.  
  135.     if (kbd_type != KBD_SGCN)
  136.         return;
  137.  
  138.     while (1) {
  139. #ifdef CONFIG_SGCN
  140.         if (kbd_type == KBD_SGCN)
  141.             sgcn_poll();
  142. #endif
  143.         thread_usleep(KEYBOARD_POLL_PAUSE);
  144.     }
  145. }
  146.  
  147. /** Acquire console back for kernel
  148.  *
  149.  */
  150. void arch_grab_console(void)
  151. {
  152. #ifdef CONFIG_FB
  153.     scr_redraw();
  154. #endif
  155.     switch (kbd_type) {
  156. #ifdef CONFIG_SGCN
  157.     case KBD_SGCN:
  158.         sgcn_grab();
  159.         break;
  160. #endif
  161.     default:
  162.         break;
  163.     }
  164. }
  165.  
  166. /** Return console to userspace
  167.  *
  168.  */
  169. void arch_release_console(void)
  170. {
  171.     switch (kbd_type) {
  172. #ifdef CONFIG_SGCN
  173.     case KBD_SGCN:
  174.         sgcn_release();
  175.         break;
  176. #endif
  177.     default:
  178.         break;
  179.     }
  180. }
  181.  
  182. /** @}
  183.  */
  184.