/*
 * Copyright (c) HighPoint Technologies, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
 *
 * $FreeBSD: head/sys/dev/hptrr/hptrr_os_bsd.c 296135 2016-02-27 03:34:01Z jhibbits $
 */
#include <dev/raid/hptrr/hptrr_config.h>
/* $Id: os_bsd.c,v 1.11 2005/06/03 14:06:38 kdh Exp $
 *
 * HighPoint RAID Driver for FreeBSD
 * Copyright (C) 2005 HighPoint Technologies, Inc. All Rights Reserved.
 */

#include <dev/raid/hptrr/os_bsd.h>

/* hardware access */
HPT_U8   os_inb  (void *port) { return inb((unsigned)(HPT_UPTR)port); }
HPT_U16  os_inw  (void *port) { return inw((unsigned)(HPT_UPTR)port); }
HPT_U32  os_inl  (void *port) { return inl((unsigned)(HPT_UPTR)port); }

void os_outb (void *port, HPT_U8 value) { outb((unsigned)(HPT_UPTR)port, (value)); }
void os_outw (void *port, HPT_U16 value) { outw((unsigned)(HPT_UPTR)port, (value)); }
void os_outl (void *port, HPT_U32 value) { outl((unsigned)(HPT_UPTR)port, (value)); }

void os_insw (void *port, HPT_U16 *buffer, HPT_U32 count)
{ insw((unsigned)(HPT_UPTR)port, (void *)buffer, count); }

void os_outsw(void *port, HPT_U16 *buffer, HPT_U32 count)
{ outsw((unsigned)(HPT_UPTR)port, (void *)buffer, count); }

HPT_U32 __dummy_reg = 0;

/* PCI configuration space */
HPT_U8  os_pci_readb (void *osext, HPT_U8 offset)
{
    return  pci_read_config(((PHBA)osext)->pcidev, offset, 1);
}

HPT_U16 os_pci_readw (void *osext, HPT_U8 offset)
{
    return  pci_read_config(((PHBA)osext)->pcidev, offset, 2);
}

HPT_U32 os_pci_readl (void *osext, HPT_U8 offset)
{
    return  pci_read_config(((PHBA)osext)->pcidev, offset, 4);
}

void os_pci_writeb (void *osext, HPT_U8 offset, HPT_U8 value)
{
    pci_write_config(((PHBA)osext)->pcidev, offset, value, 1);
}

void os_pci_writew (void *osext, HPT_U8 offset, HPT_U16 value)
{
    pci_write_config(((PHBA)osext)->pcidev, offset, value, 2);
}

void os_pci_writel (void *osext, HPT_U8 offset, HPT_U32 value)
{
    pci_write_config(((PHBA)osext)->pcidev, offset, value, 4);
}

void *os_map_pci_bar(
    void *osext,
    int index,
    HPT_U32 offset,
    HPT_U32 length
)
{
	PHBA hba = (PHBA)osext;

    hba->pcibar[index].rid = 0x10 + index * 4;

    if (pci_read_config(hba->pcidev, hba->pcibar[index].rid, 4) & 1)
	hba->pcibar[index].type = SYS_RES_IOPORT;
    else
	hba->pcibar[index].type = SYS_RES_MEMORY;

    hba->pcibar[index].res = bus_alloc_resource_any(hba->pcidev,
		hba->pcibar[index].type, &hba->pcibar[index].rid, RF_ACTIVE);

	hba->pcibar[index].base = (char *)rman_get_virtual(hba->pcibar[index].res) + offset;
	return hba->pcibar[index].base;
}

void os_unmap_pci_bar(void *osext, void *base)
{
	PHBA hba = (PHBA)osext;
	int index;

	for (index=0; index<6; index++) {
		if (hba->pcibar[index].base==base) {
			bus_release_resource(hba->pcidev, hba->pcibar[index].type,
				hba->pcibar[index].rid, hba->pcibar[index].res);
			hba->pcibar[index].base = 0;
			return;
		}
	}
}

void freelist_reserve(struct freelist *list, void *osext, HPT_UINT size, HPT_UINT count)
{
    PVBUS_EXT vbus_ext = osext;

    if (vbus_ext->ext_type!=EXT_TYPE_VBUS)
        vbus_ext = ((PHBA)osext)->vbus_ext;

    list->next = vbus_ext->freelist_head;
    vbus_ext->freelist_head = list;
    list->dma = 0;
    list->size = size;
    list->head = 0;
#if DBG
    list->reserved_count =
#endif
    list->count = count;
}

void *freelist_get(struct freelist *list)
{
    void * result;
    if (list->count) {
        HPT_ASSERT(list->head);
        result = list->head;
        list->head = *(void **)result;
        list->count--;
        return result;
    }
    return 0;
}

void freelist_put(struct freelist * list, void *p)
{
    HPT_ASSERT(list->dma==0);
    list->count++;
    *(void **)p = list->head;
    list->head = p;
}

void freelist_reserve_dma(struct freelist *list, void *osext, HPT_UINT size, HPT_UINT alignment, HPT_UINT count)
{
    PVBUS_EXT vbus_ext = osext;

    if (vbus_ext->ext_type!=EXT_TYPE_VBUS)
        vbus_ext = ((PHBA)osext)->vbus_ext;

    list->next = vbus_ext->freelist_dma_head;
    vbus_ext->freelist_dma_head = list;
    list->dma = 1;
    list->alignment = alignment;
    list->size = size;
    list->head = 0;
#if DBG
    list->reserved_count =
#endif
    list->count = count;
}

void *freelist_get_dma(struct freelist *list, BUS_ADDRESS *busaddr)
{
    void *result;
    HPT_ASSERT(list->dma);
    result = freelist_get(list);
    if (result)
        *busaddr = *(BUS_ADDRESS *)((void **)result+1);
    return result;
}

void freelist_put_dma(struct freelist *list, void *p, BUS_ADDRESS busaddr)
{
    HPT_ASSERT(list->dma);
    list->count++;
    *(void **)p = list->head;
    *(BUS_ADDRESS *)((void **)p+1) = busaddr;
    list->head = p;
}

HPT_U32 os_get_stamp(void)
{
    HPT_U32 stamp;
    do { stamp = krandom(); } while (stamp==0);
    return stamp;
}

void os_stallexec(HPT_U32 microseconds)
{
    DELAY(microseconds);
}

static void os_timer_for_ldm(void *arg)
{
	PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
	ldm_on_timer((PVBUS)vbus_ext->vbus);
}

void  os_request_timer(void * osext, HPT_U32 interval)
{
	PVBUS_EXT vbus_ext = osext;

	HPT_ASSERT(vbus_ext->ext_type==EXT_TYPE_VBUS);

	callout_stop(&vbus_ext->timer);
	callout_reset(&vbus_ext->timer, interval * hz / 1000000, os_timer_for_ldm, vbus_ext);
}

HPT_TIME os_query_time(void)
{
	return ticks * (1000000 / hz);
}

void os_schedule_task(void *osext, OSM_TASK *task)
{
	PVBUS_EXT vbus_ext = osext;

	HPT_ASSERT(task->next==0);

	if (vbus_ext->tasks==0)
		vbus_ext->tasks = task;
	else {
		OSM_TASK *t = vbus_ext->tasks;
		while (t->next) t = t->next;
		t->next = task;
	}

	if (vbus_ext->worker.ta_context)
		TASK_ENQUEUE(&vbus_ext->worker);
}

int os_revalidate_device(void *osext, int id)
{

    return 0;
}

int os_query_remove_device(void *osext, int id)
{
	return 0;
}

HPT_U8 os_get_vbus_seq(void *osext)
{
    return ((PVBUS_EXT)osext)->sim->path_id;
}

int  os_printk(char *fmt, ...)
{
    __va_list args;
    static char buf[512];

    __va_start(args, fmt);
    kvsnprintf(buf, sizeof(buf), fmt, args);
    __va_end(args);
    return kprintf("%s: %s\n", driver_name, buf);
}

#if DBG
void os_check_stack(const char *location, int size){}

void __os_dbgbreak(const char *file, int line)
{
    kprintf("*** break at %s:%d ***", file, line);
    while (1);
}

int hptrr_dbg_level = 1;
#endif