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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/irq.h>
  46. #include <arch/drivers/pic.h>
  47. #include <macros.h>
  48. #include <string.h>
  49.  
  50. #define IRQ_COUNT  64
  51.  
  52. bootinfo_t bootinfo;
  53.  
  54. /** Performs ppc32-specific initialization before main_bsp() is called. */
  55. void arch_pre_main(void)
  56. {
  57.     init.cnt = bootinfo.taskmap.count;
  58.    
  59.     uint32_t i;
  60.    
  61.     for (i = 0; i < min3(bootinfo.taskmap.count, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); i++) {
  62.         init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr);
  63.         init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
  64.         str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,
  65.             bootinfo.taskmap.tasks[i].name);
  66.     }
  67. }
  68.  
  69. void arch_pre_mm_init(void)
  70. {
  71.     /* Initialize dispatch table */
  72.     interrupt_init();
  73.  
  74.     /* Start decrementer */
  75.     start_decrementer();
  76. }
  77.  
  78. void arch_post_mm_init(void)
  79. {
  80.     if (config.cpu_active == 1) {
  81.  
  82. #ifdef CONFIG_FB
  83.         /* Initialize framebuffer */
  84.         if (bootinfo.screen.addr) {
  85.             unsigned int visual;
  86.            
  87.             switch (bootinfo.screen.bpp) {
  88.             case 8:
  89.                 visual = VISUAL_INDIRECT_8;
  90.                 break;
  91.             case 16:
  92.                 visual = VISUAL_RGB_5_5_5;
  93.                 break;
  94.             case 24:
  95.                 visual = VISUAL_RGB_8_8_8;
  96.                 break;
  97.             case 32:
  98.                 visual = VISUAL_RGB_0_8_8_8;
  99.                 break;
  100.             default:
  101.                 panic("Unsupported bits per pixel.");
  102.             }
  103.             fb_properties_t prop = {
  104.                 .addr = bootinfo.screen.addr,
  105.                 .offset = 0,
  106.                 .x = bootinfo.screen.width,
  107.                 .y = bootinfo.screen.height,
  108.                 .scan = bootinfo.screen.scanline,
  109.                 .visual = visual,
  110.             };
  111.             fb_init(&prop);
  112.         }
  113. #endif
  114.        
  115.         /* Initialize IRQ routing */
  116.         irq_init(IRQ_COUNT, IRQ_COUNT);
  117.        
  118.         if (bootinfo.macio.addr) {
  119.             /* Initialize PIC */
  120.             pic_init(bootinfo.macio.addr, PAGE_SIZE);
  121.            
  122.             /* Initialize I/O controller */
  123.             cuda_init(bootinfo.macio.addr + 0x16000, 2 * PAGE_SIZE);
  124.         }
  125.        
  126.         /* Merge all zones to 1 big zone */
  127.         zone_merge_all();
  128.     }
  129. }
  130.  
  131. void arch_post_cpu_init(void)
  132. {
  133. }
  134.  
  135. void arch_pre_smp_init(void)
  136. {
  137. }
  138.  
  139. void arch_post_smp_init(void)
  140. {
  141. }
  142.  
  143. void calibrate_delay_loop(void)
  144. {
  145. }
  146.  
  147. void userspace(uspace_arg_t *kernel_uarg)
  148. {
  149.     userspace_asm((uintptr_t) kernel_uarg->uspace_uarg,
  150.         (uintptr_t) kernel_uarg->uspace_stack +
  151.         THREAD_STACK_SIZE - SP_DELTA,
  152.         (uintptr_t) kernel_uarg->uspace_entry);
  153.    
  154.     /* Unreachable */
  155.     while (true);
  156. }
  157.  
  158. /** Acquire console back for kernel
  159.  *
  160.  */
  161. void arch_grab_console(void)
  162. {
  163. #ifdef CONFIG_FB
  164.     fb_redraw();
  165. #endif
  166. }
  167.  
  168. /** Return console to userspace
  169.  *
  170.  */
  171. void arch_release_console(void)
  172. {
  173. }
  174.  
  175. /** Construct function pointer
  176.  *
  177.  * @param fptr   function pointer structure
  178.  * @param addr   function address
  179.  * @param caller calling function address
  180.  *
  181.  * @return address of the function pointer
  182.  *
  183.  */
  184. void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
  185. {
  186.     return addr;
  187. }
  188.  
  189. /** @}
  190.  */
  191.