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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 <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.  
  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(EGA_BASE, EGA_VIDEORAM);   /* video */
  98.        
  99.         /* Enable debugger */
  100.         debugger_init();
  101.         /* Merge all memory zones to 1 big zone */
  102.         zone_merge_all();
  103.     }
  104. }
  105.  
  106. void arch_post_cpu_init()
  107. {
  108. #ifdef CONFIG_SMP
  109.         if (config.cpu_active > 1) {
  110.         l_apic_init();
  111.         l_apic_debug();
  112.     }
  113. #endif
  114. }
  115.  
  116. void arch_pre_smp_init(void)
  117. {
  118.     if (config.cpu_active == 1) {
  119. #ifdef CONFIG_SMP
  120.         acpi_init();
  121. #endif /* CONFIG_SMP */
  122.     }
  123. }
  124.  
  125. void arch_post_smp_init(void)
  126. {
  127.     devno_t kbd = device_assign_devno();
  128.     devno_t mouse = device_assign_devno();
  129.     /* keyboard controller */
  130.     i8042_init(kbd, IRQ_KBD, mouse, IRQ_MOUSE);
  131. }
  132.  
  133. void calibrate_delay_loop(void)
  134. {
  135.     i8254_calibrate_delay_loop();
  136.     if (config.cpu_active == 1) {
  137.         /*
  138.          * This has to be done only on UP.
  139.          * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.
  140.          */
  141.         i8254_normal_operation();
  142.     }
  143. }
  144.  
  145. /** Set thread-local-storage pointer
  146.  *
  147.  * TLS pointer is set in GS register. That means, the GS contains
  148.  * selector, and the descriptor->base is the correct address.
  149.  */
  150. unative_t sys_tls_set(unative_t addr)
  151. {
  152.     THREAD->arch.tls = addr;
  153.     set_tls_desc(addr);
  154.  
  155.     return 0;
  156. }
  157.  
  158. /** Acquire console back for kernel
  159.  *
  160.  */
  161. void arch_grab_console(void)
  162. {
  163. #ifdef CONFIG_FB
  164.     vesa_redraw();
  165. #else
  166.     ega_redraw();
  167. #endif
  168.    
  169.     i8042_grab();
  170. }
  171.  
  172. /** Return console to userspace
  173.  *
  174.  */
  175. void arch_release_console(void)
  176. {
  177.     i8042_release();
  178. }
  179.  
  180. /** Construct function pointer
  181.  *
  182.  * @param fptr   function pointer structure
  183.  * @param addr   function address
  184.  * @param caller calling function address
  185.  *
  186.  * @return address of the function pointer
  187.  *
  188.  */
  189. void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
  190. {
  191.     return addr;
  192. }
  193.  
  194. /** @}
  195.  */
  196.