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/*

 * 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 <genarch/drivers/via-cuda/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/irq.h>

#include <arch/drivers/pic.h>

#include <align.h>

#include <macros.h>

#include <string.h>

#define IRQ_COUNT  64

#define IRQ_CUDA   10

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;

		str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,

		    bootinfo.taskmap.tasks[i].name);

	}

}

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 */

			cir_t cir;

			void *cir_arg;

			pic_init(bootinfo.macio.addr, PAGE_SIZE, &cir, &cir_arg);

#ifdef CONFIG_VIA_CUDA

			uintptr_t pa = bootinfo.macio.addr + 0x16000;

			uintptr_t aligned_addr = ALIGN_DOWN(pa, PAGE_SIZE);

			size_t offset = pa - aligned_addr;

			size_t size = 2 * PAGE_SIZE;

			cuda_t *cuda = (cuda_t *)

			    (hw_map(aligned_addr, offset + size) + offset);

			/* Initialize I/O controller */

			cuda_instance_t *cuda_instance =

			    cuda_init(cuda, IRQ_CUDA, cir, cir_arg);

			if (cuda_instance) {

				indev_t *sink = stdin_wire();

				cuda_wire(cuda_instance, sink);

			}

#endif

		}

		/* 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;

}

void arch_reboot(void)

{

	// TODO

	while (1);

}

/** @}

 */