diff options
Diffstat (limited to 'sys/dev/iir/iir_ctrl.c')
| -rw-r--r-- | sys/dev/iir/iir_ctrl.c | 372 |
1 files changed, 372 insertions, 0 deletions
diff --git a/sys/dev/iir/iir_ctrl.c b/sys/dev/iir/iir_ctrl.c new file mode 100644 index 0000000..cd3273d --- /dev/null +++ b/sys/dev/iir/iir_ctrl.c @@ -0,0 +1,372 @@ +/* $FreeBSD$ */ +/* + * 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/endian.h> +#include <sys/malloc.h> +#include <sys/kernel.h> +#include <sys/uio.h> +#include <sys/conf.h> +#include <sys/stat.h> +#include <sys/ioccom.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) |
