/*
* 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>
#include <macros.h>
#include <string.h>
#define IRQ_COUNT 64
bootinfo_t bootinfo;
/** Performs ppc32-specific initialization before main_bsp() is called. */
void arch_pre_main(void)
{
init.cnt = bootinfo.taskmap.count;
uint32_t i;
for (i = 0; i < min3(bootinfo.taskmap.count, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); i++) {
init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr);
init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
strncpy(init.
tasks[i
].
name, bootinfo.
taskmap.
tasks[i
].
name, CONFIG_TASK_NAME_BUFLEN);
}
}
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) {
#ifdef CONFIG_FB
/* Initialize framebuffer */
if (bootinfo.screen.addr) {
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_properties_t prop = {
.addr = bootinfo.screen.addr,
.offset = 0,
.x = bootinfo.screen.width,
.y = bootinfo.screen.height,
.scan = bootinfo.screen.scanline,
.visual = visual,
};
fb_init(&prop);
}
#endif
/* Initialize IRQ routing */
irq_init(IRQ_COUNT, IRQ_COUNT);
if (bootinfo.macio.addr) {
/* Initialize PIC */
pic_init(bootinfo.macio.addr, PAGE_SIZE);
/* Initialize I/O controller */
cuda_init(device_assign_devno(),
bootinfo.macio.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 */
while (true);
}
/** Acquire console back for kernel
*
*/
void arch_grab_console(void)
{
#ifdef CONFIG_FB
fb_redraw();
#endif
}
/** Return console to userspace
*
*/
void arch_release_console(void)
{
}
/** Construct function pointer
*
* @param fptr function pointer structure
* @param addr function address
* @param caller calling function address
*
* @return address of the function pointer
*
*/
void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
{
return addr;
}
/** @}
*/