| 0,0 → 1,155 |
|---|
| /* |
| * Copyright (c) 2005 Martin Decky |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup ppc32 |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #include <config.h> |
| #include <arch.h> |
| #include <arch/boot/boot.h> |
| #include <arch/drivers/cuda.h> |
| #include <arch/interrupt.h> |
| #include <genarch/fb/fb.h> |
| #include <genarch/fb/visuals.h> |
| #include <userspace.h> |
| #include <proc/uarg.h> |
| #include <console/console.h> |
| #include <ddi/device.h> |
| #include <ddi/irq.h> |
| #include <arch/drivers/pic.h> |
| |
| #define IRQ_COUNT 64 |
| |
| bootinfo_t bootinfo; |
| |
| void arch_pre_main(void) |
| { |
| /* Setup usermode */ |
| init.cnt = bootinfo.taskmap.count; |
| |
| uint32_t i; |
| |
| for (i = 0; i < bootinfo.taskmap.count; i++) { |
| init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr); |
| init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
| } |
| } |
| |
| void arch_pre_mm_init(void) |
| { |
| /* Initialize dispatch table */ |
| interrupt_init(); |
| |
| /* Start decrementer */ |
| start_decrementer(); |
| } |
| |
| void arch_post_mm_init(void) |
| { |
| if (config.cpu_active == 1) { |
| /* Initialize framebuffer */ |
| unsigned int visual; |
| |
| switch (bootinfo.screen.bpp) { |
| case 8: |
| visual = VISUAL_INDIRECT_8; |
| break; |
| case 16: |
| visual = VISUAL_RGB_5_5_5; |
| break; |
| case 24: |
| visual = VISUAL_RGB_8_8_8; |
| break; |
| case 32: |
| visual = VISUAL_RGB_0_8_8_8; |
| break; |
| default: |
| panic("Unsupported bits per pixel"); |
| } |
| fb_init(bootinfo.screen.addr, bootinfo.screen.width, bootinfo.screen.height, bootinfo.screen.scanline, visual); |
| |
| /* Initialize IRQ routing */ |
| irq_init(IRQ_COUNT, IRQ_COUNT); |
| |
| /* Initialize PIC */ |
| pic_init(bootinfo.keyboard.addr, PAGE_SIZE); |
| |
| /* Initialize I/O controller */ |
| cuda_init(device_assign_devno(), bootinfo.keyboard.addr + 0x16000, 2 * PAGE_SIZE); |
| |
| /* Merge all zones to 1 big zone */ |
| zone_merge_all(); |
| } |
| } |
| |
| void arch_post_cpu_init(void) |
| { |
| } |
| |
| void arch_pre_smp_init(void) |
| { |
| } |
| |
| void arch_post_smp_init(void) |
| { |
| } |
| |
| void calibrate_delay_loop(void) |
| { |
| } |
| |
| void userspace(uspace_arg_t *kernel_uarg) |
| { |
| 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); |
| |
| /* Unreachable */ |
| for (;;) |
| ; |
| } |
| |
| /** Acquire console back for kernel |
| * |
| */ |
| void arch_grab_console(void) |
| { |
| cuda_grab(); |
| } |
| |
| /** Return console to userspace |
| * |
| */ |
| void arch_release_console(void) |
| { |
| cuda_release(); |
| } |
| |
| /** @} |
| */ |