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