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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 <genarch/kbrd/kbrd.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/irq.h>
  47. #include <arch/drivers/pic.h>
  48. #include <align.h>
  49. #include <macros.h>
  50. #include <string.h>
  51.  
  52. #define IRQ_COUNT  64
  53. #define IRQ_CUDA   10
  54.  
  55. bootinfo_t bootinfo;
  56.  
  57. /** Performs ppc32-specific initialization before main_bsp() is called. */
  58. void arch_pre_main(void)
  59. {
  60.     init.cnt = bootinfo.taskmap.count;
  61.    
  62.     uint32_t i;
  63.    
  64.     for (i = 0; i < min3(bootinfo.taskmap.count, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); i++) {
  65.         init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr);
  66.         init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
  67.         str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,
  68.             bootinfo.taskmap.tasks[i].name);
  69.     }
  70. }
  71.  
  72. void arch_pre_mm_init(void)
  73. {
  74.     /* Initialize dispatch table */
  75.     interrupt_init();
  76.  
  77.     /* Start decrementer */
  78.     start_decrementer();
  79. }
  80.  
  81. void arch_post_mm_init(void)
  82. {
  83.     if (config.cpu_active == 1) {
  84.  
  85. #ifdef CONFIG_FB
  86.         /* Initialize framebuffer */
  87.         if (bootinfo.screen.addr) {
  88.             unsigned int visual;
  89.            
  90.             switch (bootinfo.screen.bpp) {
  91.             case 8:
  92.                 visual = VISUAL_INDIRECT_8;
  93.                 break;
  94.             case 16:
  95.                 visual = VISUAL_RGB_5_5_5;
  96.                 break;
  97.             case 24:
  98.                 visual = VISUAL_RGB_8_8_8;
  99.                 break;
  100.             case 32:
  101.                 visual = VISUAL_RGB_0_8_8_8;
  102.                 break;
  103.             default:
  104.                 panic("Unsupported bits per pixel.");
  105.             }
  106.             fb_properties_t prop = {
  107.                 .addr = bootinfo.screen.addr,
  108.                 .offset = 0,
  109.                 .x = bootinfo.screen.width,
  110.                 .y = bootinfo.screen.height,
  111.                 .scan = bootinfo.screen.scanline,
  112.                 .visual = visual,
  113.             };
  114.             fb_init(&prop);
  115.         }
  116. #endif
  117.        
  118.         /* Initialize IRQ routing */
  119.         irq_init(IRQ_COUNT, IRQ_COUNT);
  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.     if (bootinfo.macio.addr) {
  137.         /* Initialize PIC */
  138.         cir_t cir;
  139.         void *cir_arg;
  140.         pic_init(bootinfo.macio.addr, PAGE_SIZE, &cir, &cir_arg);
  141.  
  142. #ifdef CONFIG_MAC_KBD
  143.         uintptr_t pa = bootinfo.macio.addr + 0x16000;
  144.         uintptr_t aligned_addr = ALIGN_DOWN(pa, PAGE_SIZE);
  145.         size_t offset = pa - aligned_addr;
  146.         size_t size = 2 * PAGE_SIZE;
  147.            
  148.         cuda_t *cuda = (cuda_t *)
  149.             (hw_map(aligned_addr, offset + size) + offset);
  150.            
  151.         /* Initialize I/O controller */
  152.         cuda_instance_t *cuda_instance =
  153.             cuda_init(cuda, IRQ_CUDA, cir, cir_arg);
  154.         if (cuda_instance) {
  155.             kbrd_instance_t *kbrd_instance = kbrd_init();
  156.             if (kbrd_instance) {
  157.                 indev_t *sink = stdin_wire();
  158.                 indev_t *kbrd = kbrd_wire(kbrd_instance, sink);
  159.                 cuda_wire(cuda_instance, kbrd);
  160.                 pic_enable_interrupt(IRQ_CUDA);
  161.             }
  162.         }
  163. #endif
  164.     }
  165. }
  166.  
  167. void calibrate_delay_loop(void)
  168. {
  169. }
  170.  
  171. void userspace(uspace_arg_t *kernel_uarg)
  172. {
  173.     userspace_asm((uintptr_t) kernel_uarg->uspace_uarg,
  174.         (uintptr_t) kernel_uarg->uspace_stack +
  175.         THREAD_STACK_SIZE - SP_DELTA,
  176.         (uintptr_t) kernel_uarg->uspace_entry);
  177.    
  178.     /* Unreachable */
  179.     while (true);
  180. }
  181.  
  182. /** Acquire console back for kernel
  183.  *
  184.  */
  185. void arch_grab_console(void)
  186. {
  187. #ifdef CONFIG_FB
  188.     fb_redraw();
  189. #endif
  190. }
  191.  
  192. /** Return console to userspace
  193.  *
  194.  */
  195. void arch_release_console(void)
  196. {
  197. }
  198.  
  199. /** Construct function pointer
  200.  *
  201.  * @param fptr   function pointer structure
  202.  * @param addr   function address
  203.  * @param caller calling function address
  204.  *
  205.  * @return address of the function pointer
  206.  *
  207.  */
  208. void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
  209. {
  210.     return addr;
  211. }
  212.  
  213. void arch_reboot(void)
  214. {
  215.     // TODO
  216.     while (1);
  217. }
  218.  
  219. /** @}
  220.  */
  221.