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  1. /*
  2.  * Copyright (c) 2005 Martin Decky
  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 ppc32
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #include <config.h>
  36. #include <arch.h>
  37. #include <arch/boot/boot.h>
  38. #include <arch/drivers/cuda.h>
  39. #include <arch/interrupt.h>
  40. #include <genarch/fb/fb.h>
  41. #include <genarch/fb/visuals.h>
  42. #include <userspace.h>
  43. #include <proc/uarg.h>
  44. #include <console/console.h>
  45. #include <ddi/device.h>
  46. #include <ddi/irq.h>
  47. #include <arch/drivers/pic.h>
  48.  
  49. #define IRQ_COUNT   64
  50.  
  51. bootinfo_t bootinfo;
  52.  
  53. void arch_pre_main(void)
  54. {
  55.     /* Setup usermode */
  56.     init.cnt = bootinfo.taskmap.count;
  57.    
  58.     uint32_t i;
  59.    
  60.     for (i = 0; i < bootinfo.taskmap.count; i++) {
  61.         init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr);
  62.         init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
  63.     }
  64. }
  65.  
  66. void arch_pre_mm_init(void)
  67. {
  68.     /* Initialize dispatch table */
  69.     interrupt_init();
  70.  
  71.     /* Start decrementer */
  72.     start_decrementer();
  73. }
  74.  
  75. void arch_post_mm_init(void)
  76. {
  77.     if (config.cpu_active == 1) {
  78.         /* Initialize framebuffer */
  79.         unsigned int visual;
  80.        
  81.         switch (bootinfo.screen.bpp) {
  82.         case 8:
  83.             visual = VISUAL_INDIRECT_8;
  84.             break;
  85.         case 16:
  86.             visual = VISUAL_RGB_5_5_5;
  87.             break;
  88.         case 24:
  89.             visual = VISUAL_RGB_8_8_8;
  90.             break;
  91.         case 32:
  92.             visual = VISUAL_RGB_0_8_8_8;
  93.             break;
  94.         default:
  95.             panic("Unsupported bits per pixel");
  96.         }
  97.         fb_init(bootinfo.screen.addr, bootinfo.screen.width, bootinfo.screen.height, bootinfo.screen.scanline, visual);
  98.        
  99.         /* Initialize IRQ routing */
  100.         irq_init(IRQ_COUNT, IRQ_COUNT);
  101.    
  102.         /* Initialize PIC */
  103.         pic_init(bootinfo.keyboard.addr, PAGE_SIZE);
  104.        
  105.         /* Initialize I/O controller */
  106.         cuda_init(device_assign_devno(), bootinfo.keyboard.addr + 0x16000, 2 * PAGE_SIZE);
  107.        
  108.         /* Merge all zones to 1 big zone */
  109.         zone_merge_all();
  110.     }
  111. }
  112.  
  113. void arch_post_cpu_init(void)
  114. {
  115. }
  116.  
  117. void arch_pre_smp_init(void)
  118. {
  119. }
  120.  
  121. void arch_post_smp_init(void)
  122. {
  123. }
  124.  
  125. void calibrate_delay_loop(void)
  126. {
  127. }
  128.  
  129. void userspace(uspace_arg_t *kernel_uarg)
  130. {
  131.     userspace_asm((uintptr_t) kernel_uarg->uspace_uarg, (uintptr_t) kernel_uarg->uspace_stack + THREAD_STACK_SIZE - SP_DELTA, (uintptr_t) kernel_uarg->uspace_entry);
  132.    
  133.     /* Unreachable */
  134.     for (;;)
  135.         ;
  136. }
  137.  
  138. /** Acquire console back for kernel
  139.  *
  140.  */
  141. void arch_grab_console(void)
  142. {
  143.     cuda_grab();
  144. }
  145.  
  146. /** Return console to userspace
  147.  *
  148.  */
  149. void arch_release_console(void)
  150. {
  151.     cuda_release();
  152. }
  153.  
  154. /** @}
  155.  */
  156.