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/* $FreeBSD$ */
/*
* Copyright (c) 2000-01 Intel Corporation
* 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,
* without modification, immediately at the beginning of the file.
* 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.
* 3. 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 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.
*/
/*
* iir_ctrl.c: Control functions and /dev entry points for /dev/iir*
*
* Written by: Achim Leubner <achim.leubner@intel.com>
* Fixes/Additions: Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com>
*
* TODO:
*/
#ident "$Id: iir_ctrl.c 1.2 2001/07/18 11:17:22 achim Exp $"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/uio.h>
#include <sys/conf.h>
#include <sys/stat.h>
#include <sys/disklabel.h>
#include <machine/bus.h>
#include <vm/vm.h>
#include <vm/vm_kern.h>
#include <vm/vm_extern.h>
#include <vm/pmap.h>
#include <dev/iir/iir.h>
/* Entry points and other prototypes */
static struct gdt_softc *gdt_minor2softc(int minor_no);
static d_open_t iir_open;
static d_close_t iir_close;
static d_write_t iir_write;
static d_read_t iir_read;
static d_ioctl_t iir_ioctl;
#define CDEV_MAJOR IIR_CDEV_MAJOR
/* Normally, this is a static structure. But we need it in pci/iir_pci.c */
static struct cdevsw iir_cdevsw = {
/* open */ iir_open,
/* close */ iir_close,
/* read */ iir_read,
/* write */ iir_write,
/* ioctl */ iir_ioctl,
/* poll */ nopoll,
/* mmap */ nommap,
/* strategy */ nostrategy,
/* name */ "iir",
/* maj */ CDEV_MAJOR,
/* dump */ nodump,
/* psize */ nopsize,
/* flags */ 0,
/* kq */ nokqfilter
};
static int iir_devsw_installed = 0;
#ifndef SDEV_PER_HBA
static int sdev_made = 0;
#endif
extern int gdt_cnt;
extern char ostype[];
extern char osrelease[];
extern gdt_statist_t gdt_stat;
/*
* Given a controller number,
* make a special device and return the dev_t
*/
dev_t
gdt_make_dev(int unit)
{
dev_t dev;
#ifdef SDEV_PER_HBA
dev = make_dev(&iir_cdevsw, hba2minor(unit), UID_ROOT, GID_OPERATOR,
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, "iir%d", unit);
#else
if (sdev_made)
return (0);
dev = make_dev(&iir_cdevsw, 0, UID_ROOT, GID_OPERATOR,
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, "iir");
sdev_made = 1;
#endif
return (dev);
}
void
gdt_destroy_dev(dev_t dev)
{
if (dev != NULL)
destroy_dev(dev);
}
/*
* Given a minor device number,
* return the pointer to its softc structure
*/
static struct gdt_softc *
gdt_minor2softc(int minor_no)
{
struct gdt_softc *gdt;
int hanum;
#ifdef SDEV_PER_HBA
hanum = minor2hba(minor_no);
#else
hanum = minor_no;
#endif
for (gdt = TAILQ_FIRST(&gdt_softcs);
gdt != NULL && gdt->sc_hanum != hanum;
gdt = TAILQ_NEXT(gdt, links));
return (gdt);
}
static int
iir_open(dev_t dev, int flags, int fmt, d_thread_t * p)
{
GDT_DPRINTF(GDT_D_DEBUG, ("iir_open()\n"));
#ifdef SDEV_PER_HBA
int minor_no;
struct gdt_softc *gdt;
minor_no = minor(dev);
gdt = gdt_minor2softc(minor_no);
if (gdt == NULL)
return (ENXIO);
#endif
return (0);
}
static int
iir_close(dev_t dev, int flags, int fmt, d_thread_t * p)
{
GDT_DPRINTF(GDT_D_DEBUG, ("iir_close()\n"));
#ifdef SDEV_PER_HBA
int minor_no;
struct gdt_softc *gdt;
minor_no = minor(dev);
gdt = gdt_minor2softc(minor_no);
if (gdt == NULL)
return (ENXIO);
#endif
return (0);
}
static int
iir_write(dev_t dev, struct uio * uio, int ioflag)
{
GDT_DPRINTF(GDT_D_DEBUG, ("iir_write()\n"));
#ifdef SDEV_PER_HBA
int minor_no;
struct gdt_softc *gdt;
minor_no = minor(dev);
gdt = gdt_minor2softc(minor_no);
if (gdt == NULL)
return (ENXIO);
#endif
return (0);
}
static int
iir_read(dev_t dev, struct uio * uio, int ioflag)
{
GDT_DPRINTF(GDT_D_DEBUG, ("iir_read()\n"));
#ifdef SDEV_PER_HBA
int minor_no;
struct gdt_softc *gdt;
minor_no = minor(dev);
gdt = gdt_minor2softc(minor_no);
if (gdt == NULL)
return (ENXIO);
#endif
return (0);
}
/**
* This is the control syscall interface.
* It should be binary compatible with UnixWare,
* if not totally syntatically so.
*/
static int
iir_ioctl(dev_t dev, u_long cmd, caddr_t cmdarg, int flags, d_thread_t * p)
{
GDT_DPRINTF(GDT_D_DEBUG, ("iir_ioctl() cmd 0x%lx\n",cmd));
#ifdef SDEV_PER_HBA
int minor_no;
struct gdt_softc *gdt;
minor_no = minor(dev);
gdt = gdt_minor2softc(minor_no);
if (gdt == NULL)
return (ENXIO);
#endif
++gdt_stat.io_count_act;
if (gdt_stat.io_count_act > gdt_stat.io_count_max)
gdt_stat.io_count_max = gdt_stat.io_count_act;
switch (cmd) {
case GDT_IOCTL_GENERAL:
{
gdt_ucmd_t *ucmd;
struct gdt_softc *gdt;
int lock;
ucmd = (gdt_ucmd_t *)cmdarg;
gdt = gdt_minor2softc(ucmd->io_node);
if (gdt == NULL)
return (ENXIO);
lock = splcam();
TAILQ_INSERT_TAIL(&gdt->sc_ucmd_queue, ucmd, links);
ucmd->complete_flag = FALSE;
splx(lock);
gdt_next(gdt);
if (!ucmd->complete_flag)
(void) tsleep((void *)ucmd, PCATCH | PRIBIO, "iirucw", 0);
break;
}
case GDT_IOCTL_DRVERS:
*(int *)cmdarg =
(IIR_DRIVER_VERSION << 8) | IIR_DRIVER_SUBVERSION;
break;
case GDT_IOCTL_CTRTYPE:
{
gdt_ctrt_t *p;
struct gdt_softc *gdt;
p = (gdt_ctrt_t *)cmdarg;
gdt = gdt_minor2softc(p->io_node);
if (gdt == NULL)
return (ENXIO);
p->oem_id = 0x8000;
p->type = 0xfd;
p->info = (gdt->sc_bus << 8) | (gdt->sc_slot << 3);
p->ext_type = 0x6000 | gdt->sc_subdevice;
p->device_id = gdt->sc_device;
p->sub_device_id = gdt->sc_subdevice;
break;
}
case GDT_IOCTL_OSVERS:
{
gdt_osv_t *p;
p = (gdt_osv_t *)cmdarg;
p->oscode = 10;
p->version = osrelease[0] - '0';
if (osrelease[1] == '.')
p->subversion = osrelease[2] - '0';
else
p->subversion = 0;
if (osrelease[3] == '.')
p->revision = osrelease[4] - '0';
else
p->revision = 0;
strcpy(p->name, ostype);
break;
}
case GDT_IOCTL_CTRCNT:
*(int *)cmdarg = gdt_cnt;
break;
case GDT_IOCTL_EVENT:
{
gdt_event_t *p;
int lock;
p = (gdt_event_t *)cmdarg;
if (p->erase == 0xff) {
if (p->dvr.event_source == GDT_ES_TEST)
p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.test);
else if (p->dvr.event_source == GDT_ES_DRIVER)
p->dvr.event_data.size= sizeof(p->dvr.event_data.eu.driver);
else if (p->dvr.event_source == GDT_ES_SYNC)
p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.sync);
else
p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.async);
lock = splcam();
gdt_store_event(p->dvr.event_source, p->dvr.event_idx,
&p->dvr.event_data);
splx(lock);
} else if (p->erase == 0xfe) {
lock = splcam();
gdt_clear_events();
splx(lock);
} else if (p->erase == 0) {
p->handle = gdt_read_event(p->handle, &p->dvr);
} else {
gdt_readapp_event((u_int8_t)p->erase, &p->dvr);
}
break;
}
case GDT_IOCTL_STATIST:
{
gdt_statist_t *p;
p = (gdt_statist_t *)cmdarg;
bcopy(&gdt_stat, p, sizeof(gdt_statist_t));
break;
}
default:
break;
}
--gdt_stat.io_count_act;
return (0);
}
static void
iir_drvinit(void *unused)
{
GDT_DPRINTF(GDT_D_DEBUG, ("iir_drvinit()\n"));
if (!iir_devsw_installed) {
/* Add the I/O (data) channel */
cdevsw_add(&iir_cdevsw);
iir_devsw_installed = 1;
}
}
SYSINIT(iir_dev, SI_SUB_DRIVERS, SI_ORDER_MIDDLE + CDEV_MAJOR, iir_drvinit, NULL)
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