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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. #ifdef CONFIG_Z8530
  44. #include <genarch/kbd/z8530.h>
  45. #endif
  46. #ifdef CONFIG_NS16550
  47. #include <genarch/kbd/ns16550.h>
  48. #endif
  49.  
  50. #include <console/chardev.h>
  51. #include <console/console.h>
  52. #include <arch/asm.h>
  53. #include <arch/register.h>
  54. #include <proc/thread.h>
  55. #include <arch/mm/tlb.h>
  56. #include <genarch/ofw/ofw_tree.h>
  57. #include <arch.h>
  58. #include <panic.h>
  59. #include <string.h>
  60. #include <print.h>
  61.  
  62. #define KEYBOARD_POLL_PAUSE 50000   /* 50ms */
  63.  
  64. /**
  65.  * Initialize kernel console to use framebuffer and keyboard directly.
  66.  * Called on UltraSPARC machines with standard keyboard and framebuffer.
  67.  *
  68.  * @param aliases   the "/aliases" OBP node
  69.  */
  70. static void standard_console_init(ofw_tree_node_t *aliases)
  71. {
  72. #ifdef CONFIG_FB
  73.     stdin = NULL;
  74.  
  75.     ofw_tree_property_t *prop;
  76.     ofw_tree_node_t *screen;
  77.     ofw_tree_node_t *keyboard;
  78.    
  79.     prop = ofw_tree_getprop(aliases, "screen");
  80.     if (!prop)
  81.         panic("Cannot find property 'screen'.");
  82.     if (!prop->value)
  83.         panic("Cannot find screen alias.");
  84.     screen = ofw_tree_lookup(prop->value);
  85.     if (!screen)
  86.         panic("Cannot find %s.", prop->value);
  87.  
  88.     scr_init(screen);
  89.  
  90.     prop = ofw_tree_getprop(aliases, "keyboard");
  91.     if (!prop)
  92.         panic("Cannot find property 'keyboard'.");
  93.     if (!prop->value)
  94.         panic("Cannot find keyboard alias.");
  95.     keyboard = ofw_tree_lookup(prop->value);
  96.     if (!keyboard)
  97.         panic("Cannot find %s.", prop->value);
  98.  
  99.     kbd_init(keyboard);
  100. #else
  101.     panic("Standard console requires FB, "
  102.           "but the kernel is not compiled with FB support.");
  103. #endif
  104. }
  105.  
  106. /** Initilize I/O on the Serengeti machine. */
  107. static void serengeti_init(void)
  108. {
  109.     sgcn_init();
  110. }
  111.  
  112. /**
  113.  * Initialize input/output. Auto-detects the type of machine
  114.  * and calls the appropriate I/O init routine.
  115.  */
  116. void standalone_sparc64_console_init(void)
  117. {
  118.     ofw_tree_node_t *aliases;
  119.     ofw_tree_property_t *prop;
  120.    
  121.     aliases = ofw_tree_lookup("/aliases");
  122.     if (!aliases)
  123.         panic("Cannot find '/aliases'.");
  124.    
  125.     /* "def-cn" = "default console" */
  126.     prop = ofw_tree_getprop(aliases, "def-cn");
  127.    
  128.     if ((!prop) || (!prop->value) || (strcmp(prop->value, "/sgcn") != 0)) {
  129.         standard_console_init(aliases);
  130.     } else {
  131.         serengeti_init();
  132.     }
  133. }
  134.  
  135.  
  136. /** Kernel thread for polling keyboard.
  137.  *
  138.  * @param arg Ignored.
  139.  */
  140. void kkbdpoll(void *arg)
  141. {
  142.     thread_detach(THREAD);
  143.  
  144.     if (kbd_type != KBD_SGCN)
  145.         return;
  146.  
  147.     while (1) {
  148. #ifdef CONFIG_SGCN
  149.         if (kbd_type == KBD_SGCN)
  150.             sgcn_poll();
  151. #endif
  152.         thread_usleep(KEYBOARD_POLL_PAUSE);
  153.     }
  154. }
  155.  
  156. /** Acquire console back for kernel
  157.  *
  158.  */
  159. void arch_grab_console(void)
  160. {
  161. #ifdef CONFIG_FB
  162.     scr_redraw();
  163. #endif
  164.     switch (kbd_type) {
  165. #ifdef CONFIG_SGCN
  166.     case KBD_SGCN:
  167.         sgcn_grab();
  168.         break;
  169. #endif
  170.     default:
  171.         break;
  172.     }
  173. }
  174.  
  175. /** Return console to userspace
  176.  *
  177.  */
  178. void arch_release_console(void)
  179. {
  180.     switch (kbd_type) {
  181. #ifdef CONFIG_SGCN
  182.     case KBD_SGCN:
  183.         sgcn_release();
  184.         break;
  185. #endif
  186.     default:
  187.         break;
  188.     }
  189. }
  190.  
  191. /** @}
  192.  */
  193.