pvrusb2-main.c

Go to the documentation of this file.

/*
 *
 *
 *  Copyright (C) 2005 Mike Isely <[email protected]>
 *  Copyright (C) 2004 Aurelien Alleaume <[email protected]>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/videodev2.h>

#include "pvrusb2-hdw.h"
#include "pvrusb2-devattr.h"
#include "pvrusb2-context.h"
#include "pvrusb2-debug.h"
#include "pvrusb2-v4l2.h"
#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
#include "pvrusb2-sysfs.h"
#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */

#define DRIVER_AUTHOR "Mike Isely <[email protected]>"
#define DRIVER_DESC "Hauppauge WinTV-PVR-USB2 MPEG2 Encoder/Tuner"
#define DRIVER_VERSION "V4L in-tree version"

#define DEFAULT_DEBUG_MASK (PVR2_TRACE_ERROR_LEGS| \
                PVR2_TRACE_INFO| \
                PVR2_TRACE_STD| \
                PVR2_TRACE_TOLERANCE| \
                PVR2_TRACE_TRAP| \
                0)

int pvrusb2_debug = DEFAULT_DEBUG_MASK;

module_param_named(debug,pvrusb2_debug,int,S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(debug, "Debug trace mask");

#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
static struct pvr2_sysfs_class *class_ptr = NULL;
#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */

static void pvr_setup_attach(struct pvr2_context *pvr)
{
    /* Create association with v4l layer */
    pvr2_v4l2_create(pvr);
#ifdef CONFIG_VIDEO_PVRUSB2_DVB
    /* Create association with dvb layer */
    pvr2_dvb_create(pvr);
#endif
#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
    pvr2_sysfs_create(pvr,class_ptr);
#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
}

static int pvr_probe(struct usb_interface *intf,
             const struct usb_device_id *devid)
{
    struct pvr2_context *pvr;

    /* Create underlying hardware interface */
    pvr = pvr2_context_create(intf,devid,pvr_setup_attach);
    if (!pvr) {
        pvr2_trace(PVR2_TRACE_ERROR_LEGS,
               "Failed to create hdw handler");
        return -ENOMEM;
    }

    pvr2_trace(PVR2_TRACE_INIT,"pvr_probe(pvr=%p)",pvr);

    usb_set_intfdata(intf, pvr);

    return 0;
}

/*
 * pvr_disconnect()
 *
 */
static void pvr_disconnect(struct usb_interface *intf)
{
    struct pvr2_context *pvr = usb_get_intfdata(intf);

    pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) BEGIN",pvr);

    usb_set_intfdata (intf, NULL);
    pvr2_context_disconnect(pvr);

    pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) DONE",pvr);

}

static struct usb_driver pvr_driver = {
    .name =         "pvrusb2",
    .id_table =     pvr2_device_table,
    .probe =        pvr_probe,
    .disconnect =   pvr_disconnect
};

/*
 * pvr_init() / pvr_exit()
 *
 * This code is run to initialize/exit the driver.
 *
 */
static int __init pvr_init(void)
{
    int ret;

    pvr2_trace(PVR2_TRACE_INIT,"pvr_init");

    ret = pvr2_context_global_init();
    if (ret != 0) {
        pvr2_trace(PVR2_TRACE_INIT,"pvr_init failure code=%d",ret);
        return ret;
    }

#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
    class_ptr = pvr2_sysfs_class_create();
#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */

    ret = usb_register(&pvr_driver);

    if (ret == 0)
        printk(KERN_INFO "pvrusb2: " DRIVER_VERSION ":"
               DRIVER_DESC "\n");
    if (pvrusb2_debug)
        printk(KERN_INFO "pvrusb2: Debug mask is %d (0x%x)\n",
               pvrusb2_debug,pvrusb2_debug);

    pvr2_trace(PVR2_TRACE_INIT,"pvr_init complete");

    return ret;
}

static void __exit pvr_exit(void)
{
    pvr2_trace(PVR2_TRACE_INIT,"pvr_exit");

    usb_deregister(&pvr_driver);

    pvr2_context_global_done();

#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
    pvr2_sysfs_class_destroy(class_ptr);
#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */

    pvr2_trace(PVR2_TRACE_INIT,"pvr_exit complete");
}

module_init(pvr_init);
module_exit(pvr_exit);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_VERSION("0.9.1");


/*
  Stuff for Emacs to see, in order to encourage consistent editing style:
  *** Local Variables: ***
  *** mode: c ***
  *** fill-column: 70 ***
  *** tab-width: 8 ***
  *** c-basic-offset: 8 ***
  *** End: ***
  */