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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 <genarch/drivers/via-cuda/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 <align.h>
  48. #include <macros.h>
  49. #include <string.h>
  50.  
  51. #define IRQ_COUNT  64
  52. #define IRQ_CUDA   10
  53.  
  54. bootinfo_t bootinfo;
  55.  
  56. /** Performs ppc32-specific initialization before main_bsp() is called. */
  57. void arch_pre_main(void)
  58. {
  59.     init.cnt = bootinfo.taskmap.count;
  60.    
  61.     uint32_t i;
  62.    
  63.     for (i = 0; i < min3(bootinfo.taskmap.count, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); i++) {
  64.         init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr);
  65.         init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
  66.         str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,
  67.             bootinfo.taskmap.tasks[i].name);
  68.     }
  69. }
  70.  
  71. void arch_pre_mm_init(void)
  72. {
  73.     /* Initialize dispatch table */
  74.     interrupt_init();
  75.  
  76.     /* Start decrementer */
  77.     start_decrementer();
  78. }
  79.  
  80. void arch_post_mm_init(void)
  81. {
  82.     if (config.cpu_active == 1) {
  83.  
  84. #ifdef CONFIG_FB
  85.         /* Initialize framebuffer */
  86.         if (bootinfo.screen.addr) {
  87.             unsigned int visual;
  88.            
  89.             switch (bootinfo.screen.bpp) {
  90.             case 8:
  91.                 visual = VISUAL_INDIRECT_8;
  92.                 break;
  93.             case 16:
  94.                 visual = VISUAL_RGB_5_5_5;
  95.                 break;
  96.             case 24:
  97.                 visual = VISUAL_RGB_8_8_8;
  98.                 break;
  99.             case 32:
  100.                 visual = VISUAL_RGB_0_8_8_8;
  101.                 break;
  102.             default:
  103.                 panic("Unsupported bits per pixel.");
  104.             }
  105.             fb_properties_t prop = {
  106.                 .addr = bootinfo.screen.addr,
  107.                 .offset = 0,
  108.                 .x = bootinfo.screen.width,
  109.                 .y = bootinfo.screen.height,
  110.                 .scan = bootinfo.screen.scanline,
  111.                 .visual = visual,
  112.             };
  113.             fb_init(&prop);
  114.         }
  115. #endif
  116.        
  117.         /* Initialize IRQ routing */
  118.         irq_init(IRQ_COUNT, IRQ_COUNT);
  119.        
  120.         if (bootinfo.macio.addr) {
  121.             /* Initialize PIC */
  122.             cir_t cir;
  123.             void *cir_arg;
  124.             pic_init(bootinfo.macio.addr, PAGE_SIZE, &cir, &cir_arg);
  125.            
  126. #ifdef CONFIG_VIA_CUDA
  127.             uintptr_t pa = bootinfo.macio.addr + 0x16000;
  128.             uintptr_t aligned_addr = ALIGN_DOWN(pa, PAGE_SIZE);
  129.             size_t offset = pa - aligned_addr;
  130.             size_t size = 2 * PAGE_SIZE;
  131.            
  132.             cuda_t *cuda = (cuda_t *)
  133.                 (hw_map(aligned_addr, offset + size) + offset);
  134.            
  135.             /* Initialize I/O controller */
  136.             cuda_instance_t *cuda_instance =
  137.                 cuda_init(cuda, IRQ_CUDA, cir, cir_arg);
  138.             if (cuda_instance) {
  139.                 indev_t *sink = stdin_wire();
  140.                 cuda_wire(cuda_instance, sink);
  141.             }
  142. #endif
  143.         }
  144.        
  145.         /* Merge all zones to 1 big zone */
  146.         zone_merge_all();
  147.     }
  148. }
  149.  
  150. void arch_post_cpu_init(void)
  151. {
  152. }
  153.  
  154. void arch_pre_smp_init(void)
  155. {
  156. }
  157.  
  158. void arch_post_smp_init(void)
  159. {
  160. }
  161.  
  162. void calibrate_delay_loop(void)
  163. {
  164. }
  165.  
  166. void userspace(uspace_arg_t *kernel_uarg)
  167. {
  168.     userspace_asm((uintptr_t) kernel_uarg->uspace_uarg,
  169.         (uintptr_t) kernel_uarg->uspace_stack +
  170.         THREAD_STACK_SIZE - SP_DELTA,
  171.         (uintptr_t) kernel_uarg->uspace_entry);
  172.    
  173.     /* Unreachable */
  174.     while (true);
  175. }
  176.  
  177. /** Acquire console back for kernel
  178.  *
  179.  */
  180. void arch_grab_console(void)
  181. {
  182. #ifdef CONFIG_FB
  183.     fb_redraw();
  184. #endif
  185. }
  186.  
  187. /** Return console to userspace
  188.  *
  189.  */
  190. void arch_release_console(void)
  191. {
  192. }
  193.  
  194. /** Construct function pointer
  195.  *
  196.  * @param fptr   function pointer structure
  197.  * @param addr   function address
  198.  * @param caller calling function address
  199.  *
  200.  * @return address of the function pointer
  201.  *
  202.  */
  203. void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
  204. {
  205.     return addr;
  206. }
  207.  
  208. void arch_reboot(void)
  209. {
  210.     // TODO
  211.     while (1);
  212. }
  213.  
  214. /** @}
  215.  */
  216.