linux-imx

/* DVB USB framework compliant Linux driver for the AVerMedia AverTV DVB-T

 * USB2.0 (A800) DVB-T receiver.

 *

 * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@posteo.de)

 *

 * Thanks to

 *   - AVerMedia who kindly provided information and

 *   - Glen Harris who suffered from my mistakes during development.

 *

 *  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, version 2.

 *

 * see Documentation/media/dvb-drivers/dvb-usb.rst for more information

 */

#include "dibusb.h"

​

static int debug;

module_param(debug, int, 0644);

MODULE_PARM_DESC(debug, "set debugging level (rc=1 (or-able))." DVB_USB_DEBUG_STATUS);

​

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

​

#define deb_rc(args...)   dprintk(debug,0x01,args)

​

static int a800_power_ctrl(struct dvb_usb_device *d, int onoff)

{

    /* do nothing for the AVerMedia */

    return 0;

}

​

/* assure to put cold to 0 for iManufacturer == 1 */

static int a800_identify_state(struct usb_device *udev, struct dvb_usb_device_properties *props,

    struct dvb_usb_device_description **desc, int *cold)

{

    *cold = udev->descriptor.iManufacturer != 1;

    return 0;

}

​

static int a800_rc_query(struct dvb_usb_device *d)

{

    int ret = 0;

    u8 *key = kmalloc(5, GFP_KERNEL);

    if (!key)

        return -ENOMEM;

​

    if (usb_control_msg(d->udev,usb_rcvctrlpipe(d->udev,0),

                0x04, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, key, 5,

                2000) != 5) {

        ret = -ENODEV;

        goto out;

    }

​

    /* Note that extended nec and nec32 are dropped */

    if (key[0] == 1)

        rc_keydown(d->rc_dev, RC_PROTO_NEC,

               RC_SCANCODE_NEC(key[1], key[3]), 0);

    else if (key[0] == 2)

        rc_repeat(d->rc_dev);

out:

    kfree(key);

    return ret;

}

​

/* USB Driver stuff */

static struct dvb_usb_device_properties a800_properties;

​

static int a800_probe(struct usb_interface *intf,

        const struct usb_device_id *id)

{

    return dvb_usb_device_init(intf, &a800_properties,

                   THIS_MODULE, NULL, adapter_nr);

}

​

/* do not change the order of the ID table */

static struct usb_device_id a800_table [] = {

/* 00 */    { USB_DEVICE(USB_VID_AVERMEDIA,     USB_PID_AVERMEDIA_DVBT_USB2_COLD) },

/* 01 */    { USB_DEVICE(USB_VID_AVERMEDIA,     USB_PID_AVERMEDIA_DVBT_USB2_WARM) },

            { }     /* Terminating entry */

};

MODULE_DEVICE_TABLE (usb, a800_table);

​

static struct dvb_usb_device_properties a800_properties = {

    .caps = DVB_USB_IS_AN_I2C_ADAPTER,

​

    .usb_ctrl = CYPRESS_FX2,

    .firmware = "dvb-usb-avertv-a800-02.fw",

​

    .num_adapters = 1,

    .adapter = {

        {

        .num_frontends = 1,