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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/mm/memory_init.h>
  40. #include <arch/interrupt.h>
  41. #include <genarch/fb/fb.h>
  42. #include <genarch/fb/visuals.h>
  43. #include <userspace.h>
  44. #include <proc/uarg.h>
  45. #include <console/console.h>
  46. #include <ddi/device.h>
  47. #include <ddi/irq.h>
  48. #include <arch/drivers/pic.h>
  49.  
  50. #define IRQ_COUNT   64
  51.  
  52. bootinfo_t bootinfo;
  53.  
  54. void arch_pre_main(void)
  55. {
  56.     /* Setup usermode */
  57.     init.cnt = bootinfo.taskmap.count;
  58.    
  59.     uint32_t i;
  60.    
  61.     for (i = 0; i < bootinfo.taskmap.count; i++) {
  62.         init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr);
  63.         init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
  64.     }
  65. }
  66.  
  67. void arch_pre_mm_init(void)
  68. {
  69.     /* Initialize dispatch table */
  70.     interrupt_init();
  71.  
  72.     /* Start decrementer */
  73.     start_decrementer();
  74. }
  75.  
  76. void arch_post_mm_init(void)
  77. {
  78.     if (config.cpu_active == 1) {
  79.         /* Initialize framebuffer */
  80.         unsigned int visual;
  81.        
  82.         switch (bootinfo.screen.bpp) {
  83.         case 8:
  84.             visual = VISUAL_INDIRECT_8;
  85.             break;
  86.         case 16:
  87.             visual = VISUAL_RGB_5_5_5;
  88.             break;
  89.         case 24:
  90.             visual = VISUAL_RGB_8_8_8;
  91.             break;
  92.         case 32:
  93.             visual = VISUAL_RGB_0_8_8_8;
  94.             break;
  95.         default:
  96.             panic("Unsupported bits per pixel");
  97.         }
  98.         fb_init(bootinfo.screen.addr, bootinfo.screen.width, bootinfo.screen.height, bootinfo.screen.scanline, visual);
  99.        
  100.         /* Initialize IRQ routing */
  101.         irq_init(IRQ_COUNT, IRQ_COUNT);
  102.    
  103.         /* Initialize PIC */
  104.         pic_init(bootinfo.keyboard.addr, PAGE_SIZE);
  105.        
  106.         /* Initialize I/O controller */
  107.         cuda_init(device_assign_devno(), bootinfo.keyboard.addr + 0x16000, 2 * PAGE_SIZE);
  108.        
  109.         /* Merge all zones to 1 big zone */
  110.         zone_merge_all();
  111.     }
  112. }
  113.  
  114. void arch_post_cpu_init(void)
  115. {
  116. }
  117.  
  118. void arch_pre_smp_init(void)
  119. {
  120.     memory_print_map();
  121. }
  122.  
  123. void arch_post_smp_init(void)
  124. {
  125. }
  126.  
  127. void calibrate_delay_loop(void)
  128. {
  129. }
  130.  
  131. void userspace(uspace_arg_t *kernel_uarg)
  132. {
  133.     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);
  134.    
  135.     /* Unreachable */
  136.     for (;;)
  137.         ;
  138. }
  139.  
  140. /** Acquire console back for kernel
  141.  *
  142.  */
  143. void arch_grab_console(void)
  144. {
  145.     cuda_grab();
  146. }
  147.  
  148. /** Return console to userspace
  149.  *
  150.  */
  151. void arch_release_console(void)
  152. {
  153.     cuda_release();
  154. }
  155.  
  156. /** @}
  157.  */
  158.