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  1. /*
  2.  * Copyright (c) 2001-2004 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 ia32
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #include <arch.h>
  36.  
  37. #include <arch/types.h>
  38.  
  39. #include <arch/pm.h>
  40.  
  41. #include <arch/drivers/ega.h>
  42. #include <arch/drivers/vesa.h>
  43. #include <genarch/kbd/i8042.h>
  44. #include <arch/drivers/i8254.h>
  45. #include <arch/drivers/i8259.h>
  46.  
  47. #include <arch/context.h>
  48.  
  49. #include <config.h>
  50.  
  51. #include <arch/interrupt.h>
  52. #include <arch/asm.h>
  53. #include <genarch/acpi/acpi.h>
  54.  
  55. #include <arch/bios/bios.h>
  56.  
  57. #include <interrupt.h>
  58. #include <ddi/irq.h>
  59. #include <arch/debugger.h>
  60. #include <arch/breakpoint.h>
  61. #include <proc/thread.h>
  62. #include <syscall/syscall.h>
  63. #include <console/console.h>
  64. #include <ddi/device.h>
  65.  
  66. #ifdef CONFIG_SMP
  67. #include <arch/smp/apic.h>
  68. #endif
  69.  
  70. void arch_pre_mm_init(void)
  71. {
  72.     pm_init();
  73.  
  74.     if (config.cpu_active == 1) {
  75.         interrupt_init();
  76.         bios_init();
  77.        
  78.         /* PIC */
  79.         i8259_init();
  80.     }
  81. }
  82.  
  83. void arch_post_mm_init(void)
  84. {
  85.     if (config.cpu_active == 1) {
  86.         /* Initialize IRQ routing */
  87.         irq_init(IRQ_COUNT, IRQ_COUNT);
  88.        
  89.         /* hard clock */
  90.         i8254_init();
  91.  
  92. #ifdef CONFIG_FB
  93.         if (vesa_present())
  94.             vesa_init();
  95.         else
  96. #endif
  97.             ega_init(); /* video */
  98.        
  99.         /* Enable debugger */
  100.         debugger_init();
  101.  
  102. #ifdef CONFIG_UDEBUG
  103.         /* Enable INT3 breakpoint handler */
  104.         breakpoint_init();
  105. #endif
  106.         /* Merge all memory zones to 1 big zone */
  107.         zone_merge_all();
  108.     }
  109. }
  110.  
  111. void arch_post_cpu_init()
  112. {
  113. #ifdef CONFIG_SMP
  114.         if (config.cpu_active > 1) {
  115.         l_apic_init();
  116.         l_apic_debug();
  117.     }
  118. #endif
  119. }
  120.  
  121. void arch_pre_smp_init(void)
  122. {
  123.     if (config.cpu_active == 1) {
  124. #ifdef CONFIG_SMP
  125.         acpi_init();
  126. #endif /* CONFIG_SMP */
  127.     }
  128. }
  129.  
  130. void arch_post_smp_init(void)
  131. {
  132.     devno_t kbd = device_assign_devno();
  133.     devno_t mouse = device_assign_devno();
  134.     /* keyboard controller */
  135.     i8042_init(kbd, IRQ_KBD, mouse, IRQ_MOUSE);
  136. }
  137.  
  138. void calibrate_delay_loop(void)
  139. {
  140.     i8254_calibrate_delay_loop();
  141.     if (config.cpu_active == 1) {
  142.         /*
  143.          * This has to be done only on UP.
  144.          * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.
  145.          */
  146.         i8254_normal_operation();
  147.     }
  148. }
  149.  
  150. /** Set thread-local-storage pointer
  151.  *
  152.  * TLS pointer is set in GS register. That means, the GS contains
  153.  * selector, and the descriptor->base is the correct address.
  154.  */
  155. unative_t sys_tls_set(unative_t addr)
  156. {
  157.     THREAD->arch.tls = addr;
  158.     set_tls_desc(addr);
  159.  
  160.     return 0;
  161. }
  162.  
  163. /** Acquire console back for kernel
  164.  *
  165.  */
  166. void arch_grab_console(void)
  167. {
  168.     i8042_grab();
  169. }
  170. /** Return console to userspace
  171.  *
  172.  */
  173. void arch_release_console(void)
  174. {
  175.     i8042_release();
  176. }
  177.  
  178. /** @}
  179.  */
  180.