7ac40f5f59
branches: Initialize struct cdevsw using C99 sparse initializtion and remove all initializations to default values. This patch is automatically generated and has been tested by compiling LINT with all the fields in struct cdevsw in reverse order on alpha, sparc64 and i386. Approved by: re(scottl)
351 lines
9.2 KiB
C
351 lines
9.2 KiB
C
/* $FreeBSD$ */
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/*
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* Copyright (c) 2000-01 Intel Corporation
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* All Rights Reserved
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* iir_ctrl.c: Control functions and /dev entry points for /dev/iir*
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*
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* Written by: Achim Leubner <achim.leubner@intel.com>
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* Fixes/Additions: Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com>
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*
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* TODO:
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*/
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#ident "$Id: iir_ctrl.c 1.2 2001/07/18 11:17:22 achim Exp $"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/endian.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/uio.h>
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#include <sys/conf.h>
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#include <sys/stat.h>
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#include <sys/ioccom.h>
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#include <machine/bus.h>
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#include <vm/vm.h>
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#include <vm/vm_kern.h>
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#include <vm/vm_extern.h>
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#include <vm/pmap.h>
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#include <dev/iir/iir.h>
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/* Entry points and other prototypes */
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static struct gdt_softc *gdt_minor2softc(int minor_no);
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static d_open_t iir_open;
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static d_close_t iir_close;
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static d_write_t iir_write;
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static d_read_t iir_read;
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static d_ioctl_t iir_ioctl;
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#define CDEV_MAJOR IIR_CDEV_MAJOR
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/* Normally, this is a static structure. But we need it in pci/iir_pci.c */
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static struct cdevsw iir_cdevsw = {
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.d_open = iir_open,
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.d_close = iir_close,
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.d_read = iir_read,
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.d_write = iir_write,
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.d_ioctl = iir_ioctl,
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.d_name = "iir",
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.d_maj = CDEV_MAJOR,
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};
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#ifndef SDEV_PER_HBA
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static int sdev_made = 0;
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#endif
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extern int gdt_cnt;
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extern char ostype[];
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extern char osrelease[];
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extern gdt_statist_t gdt_stat;
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/*
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* Given a controller number,
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* make a special device and return the dev_t
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*/
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dev_t
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gdt_make_dev(int unit)
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{
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dev_t dev;
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#ifdef SDEV_PER_HBA
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dev = make_dev(&iir_cdevsw, hba2minor(unit), UID_ROOT, GID_OPERATOR,
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S_IRUSR | S_IWUSR | S_IRGRP, "iir%d", unit);
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#else
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if (sdev_made)
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return (0);
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dev = make_dev(&iir_cdevsw, 0, UID_ROOT, GID_OPERATOR,
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S_IRUSR | S_IWUSR | S_IRGRP, "iir");
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sdev_made = 1;
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#endif
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return (dev);
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}
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void
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gdt_destroy_dev(dev_t dev)
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{
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if (dev != NULL)
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destroy_dev(dev);
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}
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/*
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* Given a minor device number,
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* return the pointer to its softc structure
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*/
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static struct gdt_softc *
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gdt_minor2softc(int minor_no)
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{
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struct gdt_softc *gdt;
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int hanum;
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#ifdef SDEV_PER_HBA
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hanum = minor2hba(minor_no);
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#else
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hanum = minor_no;
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#endif
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for (gdt = TAILQ_FIRST(&gdt_softcs);
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gdt != NULL && gdt->sc_hanum != hanum;
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gdt = TAILQ_NEXT(gdt, links));
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return (gdt);
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}
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static int
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iir_open(dev_t dev, int flags, int fmt, d_thread_t * p)
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{
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GDT_DPRINTF(GDT_D_DEBUG, ("iir_open()\n"));
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#ifdef SDEV_PER_HBA
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int minor_no;
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struct gdt_softc *gdt;
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minor_no = minor(dev);
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gdt = gdt_minor2softc(minor_no);
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if (gdt == NULL)
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return (ENXIO);
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#endif
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return (0);
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}
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static int
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iir_close(dev_t dev, int flags, int fmt, d_thread_t * p)
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{
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GDT_DPRINTF(GDT_D_DEBUG, ("iir_close()\n"));
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#ifdef SDEV_PER_HBA
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int minor_no;
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struct gdt_softc *gdt;
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minor_no = minor(dev);
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gdt = gdt_minor2softc(minor_no);
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if (gdt == NULL)
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return (ENXIO);
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#endif
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return (0);
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}
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static int
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iir_write(dev_t dev, struct uio * uio, int ioflag)
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{
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GDT_DPRINTF(GDT_D_DEBUG, ("iir_write()\n"));
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#ifdef SDEV_PER_HBA
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int minor_no;
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struct gdt_softc *gdt;
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minor_no = minor(dev);
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gdt = gdt_minor2softc(minor_no);
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if (gdt == NULL)
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return (ENXIO);
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#endif
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return (0);
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}
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static int
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iir_read(dev_t dev, struct uio * uio, int ioflag)
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{
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GDT_DPRINTF(GDT_D_DEBUG, ("iir_read()\n"));
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#ifdef SDEV_PER_HBA
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int minor_no;
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struct gdt_softc *gdt;
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minor_no = minor(dev);
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gdt = gdt_minor2softc(minor_no);
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if (gdt == NULL)
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return (ENXIO);
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#endif
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return (0);
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}
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/**
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* This is the control syscall interface.
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* It should be binary compatible with UnixWare,
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* if not totally syntatically so.
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*/
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static int
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iir_ioctl(dev_t dev, u_long cmd, caddr_t cmdarg, int flags, d_thread_t * p)
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{
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GDT_DPRINTF(GDT_D_DEBUG, ("iir_ioctl() cmd 0x%lx\n",cmd));
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#ifdef SDEV_PER_HBA
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int minor_no;
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struct gdt_softc *gdt;
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minor_no = minor(dev);
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gdt = gdt_minor2softc(minor_no);
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if (gdt == NULL)
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return (ENXIO);
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#endif
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++gdt_stat.io_count_act;
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if (gdt_stat.io_count_act > gdt_stat.io_count_max)
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gdt_stat.io_count_max = gdt_stat.io_count_act;
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switch (cmd) {
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case GDT_IOCTL_GENERAL:
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{
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gdt_ucmd_t *ucmd;
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struct gdt_softc *gdt;
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int lock;
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ucmd = (gdt_ucmd_t *)cmdarg;
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gdt = gdt_minor2softc(ucmd->io_node);
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if (gdt == NULL)
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return (ENXIO);
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lock = splcam();
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TAILQ_INSERT_TAIL(&gdt->sc_ucmd_queue, ucmd, links);
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ucmd->complete_flag = FALSE;
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splx(lock);
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gdt_next(gdt);
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if (!ucmd->complete_flag)
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(void) tsleep((void *)ucmd, PCATCH | PRIBIO, "iirucw", 0);
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break;
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}
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case GDT_IOCTL_DRVERS:
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*(int *)cmdarg =
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(IIR_DRIVER_VERSION << 8) | IIR_DRIVER_SUBVERSION;
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break;
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case GDT_IOCTL_CTRTYPE:
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{
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gdt_ctrt_t *p;
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struct gdt_softc *gdt;
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p = (gdt_ctrt_t *)cmdarg;
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gdt = gdt_minor2softc(p->io_node);
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if (gdt == NULL)
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return (ENXIO);
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p->oem_id = 0x8000;
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p->type = 0xfd;
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p->info = (gdt->sc_bus << 8) | (gdt->sc_slot << 3);
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p->ext_type = 0x6000 | gdt->sc_subdevice;
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p->device_id = gdt->sc_device;
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p->sub_device_id = gdt->sc_subdevice;
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break;
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}
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case GDT_IOCTL_OSVERS:
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{
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gdt_osv_t *p;
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p = (gdt_osv_t *)cmdarg;
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p->oscode = 10;
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p->version = osrelease[0] - '0';
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if (osrelease[1] == '.')
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p->subversion = osrelease[2] - '0';
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else
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p->subversion = 0;
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if (osrelease[3] == '.')
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p->revision = osrelease[4] - '0';
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else
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p->revision = 0;
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strcpy(p->name, ostype);
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break;
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}
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case GDT_IOCTL_CTRCNT:
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*(int *)cmdarg = gdt_cnt;
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break;
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case GDT_IOCTL_EVENT:
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{
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gdt_event_t *p;
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int lock;
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p = (gdt_event_t *)cmdarg;
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if (p->erase == 0xff) {
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if (p->dvr.event_source == GDT_ES_TEST)
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p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.test);
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else if (p->dvr.event_source == GDT_ES_DRIVER)
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p->dvr.event_data.size= sizeof(p->dvr.event_data.eu.driver);
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else if (p->dvr.event_source == GDT_ES_SYNC)
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p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.sync);
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else
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p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.async);
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lock = splcam();
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gdt_store_event(p->dvr.event_source, p->dvr.event_idx,
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&p->dvr.event_data);
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splx(lock);
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} else if (p->erase == 0xfe) {
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lock = splcam();
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gdt_clear_events();
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splx(lock);
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} else if (p->erase == 0) {
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p->handle = gdt_read_event(p->handle, &p->dvr);
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} else {
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gdt_readapp_event((u_int8_t)p->erase, &p->dvr);
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}
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break;
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}
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case GDT_IOCTL_STATIST:
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{
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gdt_statist_t *p;
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p = (gdt_statist_t *)cmdarg;
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bcopy(&gdt_stat, p, sizeof(gdt_statist_t));
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break;
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}
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default:
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break;
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}
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--gdt_stat.io_count_act;
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return (0);
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}
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