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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.         if (bootinfo.screen.addr) {
  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_properties_t prop = {
  99.                 .addr = bootinfo.screen.addr,
  100.                 .offset = 0,
  101.                 .x = bootinfo.screen.width,
  102.                 .y = bootinfo.screen.height,
  103.                 .scan = bootinfo.screen.scanline,
  104.                 .visual = visual,
  105.             };
  106.             fb_init(&prop);
  107.         }
  108.        
  109.         /* Initialize IRQ routing */
  110.         irq_init(IRQ_COUNT, IRQ_COUNT);
  111.        
  112.         if (bootinfo.macio.addr) {
  113.             /* Initialize PIC */
  114.             pic_init(bootinfo.macio.addr, PAGE_SIZE);
  115.            
  116.             /* Initialize I/O controller */
  117.             cuda_init(device_assign_devno(),
  118.                 bootinfo.macio.addr + 0x16000, 2 * PAGE_SIZE);
  119.         }
  120.        
  121.         /* Merge all zones to 1 big zone */
  122.         zone_merge_all();
  123.     }
  124. }
  125.  
  126. void arch_post_cpu_init(void)
  127. {
  128. }
  129.  
  130. void arch_pre_smp_init(void)
  131. {
  132. }
  133.  
  134. void arch_post_smp_init(void)
  135. {
  136. }
  137.  
  138. void calibrate_delay_loop(void)
  139. {
  140. }
  141.  
  142. void userspace(uspace_arg_t *kernel_uarg)
  143. {
  144.     userspace_asm((uintptr_t) kernel_uarg->uspace_uarg,
  145.         (uintptr_t) kernel_uarg->uspace_stack +
  146.         THREAD_STACK_SIZE - SP_DELTA,
  147.         (uintptr_t) kernel_uarg->uspace_entry);
  148.    
  149.     /* Unreachable */
  150.     while (true);
  151. }
  152.  
  153. /** Acquire console back for kernel
  154.  *
  155.  */
  156. void arch_grab_console(void)
  157. {
  158.     fb_redraw();
  159.     cuda_grab();
  160. }
  161.  
  162. /** Return console to userspace
  163.  *
  164.  */
  165. void arch_release_console(void)
  166. {
  167.     cuda_release();
  168. }
  169.  
  170. /** Construct function pointer
  171.  *
  172.  * @param fptr   function pointer structure
  173.  * @param addr   function address
  174.  * @param caller calling function address
  175.  *
  176.  * @return address of the function pointer
  177.  *
  178.  */
  179. void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
  180. {
  181.     return addr;
  182. }
  183.  
  184. /** @}
  185.  */
  186.