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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 <genarch/drivers/legacy/ia32/io.h>
  42. #include <genarch/drivers/ega/ega.h>
  43. #include <arch/drivers/vesa.h>
  44. #include <genarch/kbd/i8042.h>
  45. #include <arch/drivers/i8254.h>
  46. #include <arch/drivers/i8259.h>
  47.  
  48. #include <arch/context.h>
  49.  
  50. #include <config.h>
  51.  
  52. #include <arch/interrupt.h>
  53. #include <arch/asm.h>
  54. #include <genarch/acpi/acpi.h>
  55.  
  56. #include <arch/bios/bios.h>
  57.  
  58. #include <interrupt.h>
  59. #include <ddi/irq.h>
  60. #include <arch/debugger.h>
  61. #include <proc/thread.h>
  62. #include <syscall/syscall.h>
  63. #include <console/console.h>
  64. #include <ddi/device.h>
  65. #include <sysinfo/sysinfo.h>
  66.  
  67. #ifdef CONFIG_SMP
  68. #include <arch/smp/apic.h>
  69. #endif
  70.  
  71. void arch_pre_mm_init(void)
  72. {
  73.     pm_init();
  74.  
  75.     if (config.cpu_active == 1) {
  76.         interrupt_init();
  77.         bios_init();
  78.        
  79.         /* PIC */
  80.         i8259_init();
  81.     }
  82. }
  83.  
  84. void arch_post_mm_init(void)
  85. {
  86.     if (config.cpu_active == 1) {
  87.         /* Initialize IRQ routing */
  88.         irq_init(IRQ_COUNT, IRQ_COUNT);
  89.        
  90.         /* hard clock */
  91.         i8254_init();
  92.  
  93. #ifdef CONFIG_FB
  94.         if (vesa_present())
  95.             vesa_init();
  96.         else
  97. #endif
  98.             ega_init(EGA_BASE, EGA_VIDEORAM);   /* video */
  99.        
  100.         /* Enable debugger */
  101.         debugger_init();
  102.         /* Merge all memory zones to 1 big zone */
  103.         zone_merge_all();
  104.     }
  105. }
  106.  
  107. void arch_post_cpu_init()
  108. {
  109. #ifdef CONFIG_SMP
  110.         if (config.cpu_active > 1) {
  111.         l_apic_init();
  112.         l_apic_debug();
  113.     }
  114. #endif
  115. }
  116.  
  117. void arch_pre_smp_init(void)
  118. {
  119.     if (config.cpu_active == 1) {
  120. #ifdef CONFIG_SMP
  121.         acpi_init();
  122. #endif /* CONFIG_SMP */
  123.     }
  124. }
  125.  
  126. void arch_post_smp_init(void)
  127. {
  128.     devno_t devno = device_assign_devno();
  129.     /* keyboard controller */
  130.     (void) i8042_init((i8042_t *) I8042_BASE, devno, IRQ_KBD);
  131.  
  132.     /*
  133.      * This is the necessary evil until the userspace driver is entirely
  134.      * self-sufficient.
  135.      */
  136.     sysinfo_set_item_val("kbd", NULL, true);
  137.     sysinfo_set_item_val("kbd.devno", NULL, devno);
  138.     sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD);
  139. }
  140.  
  141. void calibrate_delay_loop(void)
  142. {
  143.     i8254_calibrate_delay_loop();
  144.     if (config.cpu_active == 1) {
  145.         /*
  146.          * This has to be done only on UP.
  147.          * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.
  148.          */
  149.         i8254_normal_operation();
  150.     }
  151. }
  152.  
  153. /** Set thread-local-storage pointer
  154.  *
  155.  * TLS pointer is set in GS register. That means, the GS contains
  156.  * selector, and the descriptor->base is the correct address.
  157.  */
  158. unative_t sys_tls_set(unative_t addr)
  159. {
  160.     THREAD->arch.tls = addr;
  161.     set_tls_desc(addr);
  162.  
  163.     return 0;
  164. }
  165.  
  166. /** Acquire console back for kernel
  167.  *
  168.  */
  169. void arch_grab_console(void)
  170. {
  171. #ifdef CONFIG_FB
  172.     vesa_redraw();
  173. #else
  174.     ega_redraw();
  175. #endif
  176. }
  177.  
  178. /** Return console to userspace
  179.  *
  180.  */
  181. void arch_release_console(void)
  182. {
  183. }
  184.  
  185. /** Construct function pointer
  186.  *
  187.  * @param fptr   function pointer structure
  188.  * @param addr   function address
  189.  * @param caller calling function address
  190.  *
  191.  * @return address of the function pointer
  192.  *
  193.  */
  194. void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
  195. {
  196.     return addr;
  197. }
  198.  
  199. /** @}
  200.  */
  201.