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210 | decky | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2005 Martin Decky |
210 | decky | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
1734 | decky | 29 | /** @addtogroup ppc32 |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
2089 | decky | 35 | #include <config.h> |
210 | decky | 36 | #include <arch.h> |
1132 | decky | 37 | #include <arch/boot/boot.h> |
990 | decky | 38 | #include <arch/drivers/cuda.h> |
1004 | decky | 39 | #include <arch/interrupt.h> |
1374 | decky | 40 | #include <genarch/fb/fb.h> |
1993 | decky | 41 | #include <genarch/fb/visuals.h> |
1220 | decky | 42 | #include <userspace.h> |
43 | #include <proc/uarg.h> |
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1474 | palkovsky | 44 | #include <console/console.h> |
1928 | decky | 45 | #include <ddi/device.h> |
46 | #include <ddi/irq.h> |
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1480 | palkovsky | 47 | #include <arch/drivers/pic.h> |
970 | decky | 48 | |
1928 | decky | 49 | #define IRQ_COUNT 64 |
50 | |||
1132 | decky | 51 | bootinfo_t bootinfo; |
52 | |||
1222 | decky | 53 | void arch_pre_main(void) |
54 | { |
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55 | /* Setup usermode */ |
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1370 | decky | 56 | init.cnt = bootinfo.taskmap.count; |
57 | |||
1780 | jermar | 58 | uint32_t i; |
1370 | decky | 59 | |
60 | for (i = 0; i < bootinfo.taskmap.count; i++) { |
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61 | init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr); |
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62 | init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
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63 | } |
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1222 | decky | 64 | } |
65 | |||
210 | decky | 66 | void arch_pre_mm_init(void) |
67 | { |
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1004 | decky | 68 | /* Initialize dispatch table */ |
1007 | decky | 69 | interrupt_init(); |
1480 | palkovsky | 70 | |
1007 | decky | 71 | /* Start decrementer */ |
72 | start_decrementer(); |
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210 | decky | 73 | } |
74 | |||
75 | void arch_post_mm_init(void) |
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76 | { |
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1304 | palkovsky | 77 | if (config.cpu_active == 1) { |
1928 | decky | 78 | /* Initialize framebuffer */ |
1993 | decky | 79 | unsigned int visual; |
1928 | decky | 80 | |
1993 | decky | 81 | switch (bootinfo.screen.bpp) { |
82 | case 8: |
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83 | visual = VISUAL_INDIRECT_8; |
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84 | break; |
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85 | case 16: |
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86 | visual = VISUAL_RGB_5_5_5; |
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87 | break; |
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88 | case 24: |
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89 | visual = VISUAL_RGB_8_8_8; |
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90 | break; |
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91 | case 32: |
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92 | visual = VISUAL_RGB_0_8_8_8; |
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93 | break; |
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94 | default: |
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95 | panic("Unsupported bits per pixel"); |
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96 | } |
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97 | fb_init(bootinfo.screen.addr, bootinfo.screen.width, bootinfo.screen.height, bootinfo.screen.scanline, visual); |
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98 | |||
1928 | decky | 99 | /* Initialize IRQ routing */ |
100 | irq_init(IRQ_COUNT, IRQ_COUNT); |
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1371 | decky | 101 | |
1480 | palkovsky | 102 | /* Initialize PIC */ |
1756 | decky | 103 | pic_init(bootinfo.keyboard.addr, PAGE_SIZE); |
1619 | decky | 104 | |
1928 | decky | 105 | /* Initialize I/O controller */ |
106 | cuda_init(device_assign_devno(), bootinfo.keyboard.addr + 0x16000, 2 * PAGE_SIZE); |
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1619 | decky | 107 | |
1304 | palkovsky | 108 | /* Merge all zones to 1 big zone */ |
109 | zone_merge_all(); |
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110 | } |
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210 | decky | 111 | } |
112 | |||
1901 | jermar | 113 | void arch_post_cpu_init(void) |
114 | { |
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115 | } |
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116 | |||
503 | jermar | 117 | void arch_pre_smp_init(void) |
210 | decky | 118 | { |
119 | } |
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120 | |||
503 | jermar | 121 | void arch_post_smp_init(void) |
122 | { |
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123 | } |
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124 | |||
210 | decky | 125 | void calibrate_delay_loop(void) |
126 | { |
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127 | } |
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1007 | decky | 128 | |
1220 | decky | 129 | void userspace(uspace_arg_t *kernel_uarg) |
130 | { |
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1780 | jermar | 131 | 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); |
1220 | decky | 132 | |
133 | /* Unreachable */ |
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134 | for (;;) |
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135 | ; |
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136 | } |
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1474 | palkovsky | 137 | |
138 | /** Acquire console back for kernel |
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139 | * |
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140 | */ |
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141 | void arch_grab_console(void) |
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142 | { |
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1734 | decky | 143 | cuda_grab(); |
1474 | palkovsky | 144 | } |
1734 | decky | 145 | |
1474 | palkovsky | 146 | /** Return console to userspace |
147 | * |
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148 | */ |
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149 | void arch_release_console(void) |
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150 | { |
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1734 | decky | 151 | cuda_release(); |
1474 | palkovsky | 152 | } |
1702 | cejka | 153 | |
1734 | decky | 154 | /** @} |
1702 | cejka | 155 | */ |