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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/sun4u/tlb.h>
  56. #include <genarch/ofw/ofw_tree.h>
  57. #include <arch.h>
  58. #include <panic.h>
  59. #include <func.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.     stdin = NULL;
  73.  
  74.     ofw_tree_property_t *prop;
  75.     ofw_tree_node_t *screen;
  76.     ofw_tree_node_t *keyboard;
  77.    
  78.     prop = ofw_tree_getprop(aliases, "screen");
  79.     if (!prop)
  80.         panic("Can't find property \"screen\".\n");
  81.     if (!prop->value)
  82.         panic("Can't find screen alias.\n");
  83.     screen = ofw_tree_lookup(prop->value);
  84.     if (!screen)
  85.         panic("Can't find %s\n", prop->value);
  86.  
  87.     scr_init(screen);
  88.  
  89.     prop = ofw_tree_getprop(aliases, "keyboard");
  90.     if (!prop)
  91.         panic("Can't find property \"keyboard\".\n");
  92.     if (!prop->value)
  93.         panic("Can't find keyboard alias.\n");
  94.     keyboard = ofw_tree_lookup(prop->value);
  95.     if (!keyboard)
  96.         panic("Can't find %s\n", prop->value);
  97.  
  98.     kbd_init(keyboard);
  99. }
  100.  
  101. /** Initilize I/O on the Serengeti machine. */
  102. static void serengeti_init(void)
  103. {
  104.     sgcn_init();
  105. }
  106.  
  107. /**
  108.  * Initialize input/output. Auto-detects the type of machine
  109.  * and calls the appropriate I/O init routine.
  110.  */
  111. void standalone_sparc64_console_init(void)
  112. {
  113.     ofw_tree_node_t *aliases;
  114.     ofw_tree_property_t *prop;
  115.    
  116.     aliases = ofw_tree_lookup("/aliases");
  117.     if (!aliases)
  118.         panic("Can't find /aliases.\n");
  119.    
  120.     /* "def-cn" = "default console" */
  121.     prop = ofw_tree_getprop(aliases, "def-cn");
  122.    
  123.     if ((!prop) || (!prop->value) || (strcmp(prop->value, "/sgcn") != 0)) {
  124.         standard_console_init(aliases);
  125.     } else {
  126.         serengeti_init();
  127.     }
  128. }
  129.  
  130.  
  131. /** Kernel thread for polling keyboard.
  132.  *
  133.  * @param arg Ignored.
  134.  */
  135. void kkbdpoll(void *arg)
  136. {
  137.     thread_detach(THREAD);
  138.  
  139. #ifdef CONFIG_Z8530
  140.     if (kbd_type == KBD_Z8530) {
  141.         /*
  142.          * The z8530 driver is interrupt-driven.
  143.          */
  144.         return;
  145.     }
  146. #endif
  147.  
  148. #ifdef CONFIG_NS16550
  149. #ifdef CONFIG_NS16550_INTERRUPT_DRIVEN
  150.     if (kbd_type == KBD_NS16550) {
  151.         /*
  152.          * The ns16550 driver is interrupt-driven.
  153.          */
  154.         return;
  155.     }
  156. #endif
  157. #endif
  158.     while (1) {
  159. #ifdef CONFIG_NS16550
  160. #ifndef CONFIG_NS16550_INTERRUPT_DRIVEN
  161.         if (kbd_type == KBD_NS16550)
  162.             ns16550_poll();
  163. #endif
  164. #endif
  165. #ifdef CONFIG_SGCN
  166.         if (kbd_type == KBD_SGCN)
  167.             sgcn_poll();
  168. #endif
  169.         thread_usleep(KEYBOARD_POLL_PAUSE);
  170.     }
  171. }
  172.  
  173. /** Acquire console back for kernel
  174.  *
  175.  */
  176. void arch_grab_console(void)
  177. {
  178.     scr_redraw();
  179.     switch (kbd_type) {
  180. #ifdef CONFIG_Z8530
  181.     case KBD_Z8530:
  182.         z8530_grab();
  183.         break;
  184. #endif
  185. #ifdef CONFIG_NS16550
  186.     case KBD_NS16550:
  187.         ns16550_grab();
  188.         break;
  189. #endif
  190. #ifdef CONFIG_SGCN
  191.     case KBD_SGCN:
  192.         sgcn_grab();
  193.         break;
  194. #endif
  195.     default:
  196.         break;
  197.     }
  198. }
  199.  
  200. /** Return console to userspace
  201.  *
  202.  */
  203. void arch_release_console(void)
  204. {
  205.     switch (kbd_type) {
  206. #ifdef CONFIG_Z8530
  207.     case KBD_Z8530:
  208.         z8530_release();
  209.         break;
  210. #endif
  211. #ifdef CONFIG_NS16550
  212.     case KBD_NS16550:
  213.         ns16550_release();
  214.         break;
  215. #endif
  216. #ifdef CONFIG_SGCN
  217.     case KBD_SGCN:
  218.         sgcn_release();
  219.         break;
  220. #endif
  221.     default:
  222.         break;
  223.     }
  224. }
  225.  
  226. /** @}
  227.  */
  228.