LXR linux/drivers/media/usb/dvb-usb/a800.c

   1/* DVB USB framework compliant Linux driver for the AVerMedia AverTV DVB-T
   2 * USB2.0 (A800) DVB-T receiver.
   3 *
   4 * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@posteo.de)
   5 *
   6 * Thanks to
   7 *   - AVerMedia who kindly provided information and
   8 *   - Glen Harris who suffered from my mistakes during development.
   9 *
  10 *      This program is free software; you can redistribute it and/or modify it
  11 *      under the terms of the GNU General Public License as published by the Free
  12 *      Software Foundation, version 2.
  13 *
  14 * see Documentation/media/dvb-drivers/dvb-usb.rst for more information
  15 */
  16#include "dibusb.h"
  17
  18static int debug;
  19module_param(debug, int, 0644);
  20MODULE_PARM_DESC(debug, "set debugging level (rc=1 (or-able))." DVB_USB_DEBUG_STATUS);
  21
  22DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  23
  24#define deb_rc(args...)   dprintk(debug,0x01,args)
  25
  26static int a800_power_ctrl(struct dvb_usb_device *d, int onoff)
  27{
  28        /* do nothing for the AVerMedia */
  29        return 0;
  30}
  31
  32/* assure to put cold to 0 for iManufacturer == 1 */
  33static int a800_identify_state(struct usb_device *udev, struct dvb_usb_device_properties *props,
  34        struct dvb_usb_device_description **desc, int *cold)
  35{
  36        *cold = udev->descriptor.iManufacturer != 1;
  37        return 0;
  38}
  39
  40static int a800_rc_query(struct dvb_usb_device *d)
  41{
  42        int ret = 0;
  43        u8 *key = kmalloc(5, GFP_KERNEL);
  44        if (!key)
  45                return -ENOMEM;
  46
  47        if (usb_control_msg(d->udev,usb_rcvctrlpipe(d->udev,0),
  48                                0x04, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, key, 5,
  49                                2000) != 5) {
  50                ret = -ENODEV;
  51                goto out;
  52        }
  53
  54        /* Note that extended nec and nec32 are dropped */
  55        if (key[0] == 1)
  56                rc_keydown(d->rc_dev, RC_PROTO_NEC,
  57                           RC_SCANCODE_NEC(key[1], key[3]), 0);
  58        else if (key[0] == 2)
  59                rc_repeat(d->rc_dev);
  60out:
  61        kfree(key);
  62        return ret;
  63}
  64
  65/* USB Driver stuff */
  66static struct dvb_usb_device_properties a800_properties;
  67
  68static int a800_probe(struct usb_interface *intf,
  69                const struct usb_device_id *id)
  70{
  71        return dvb_usb_device_init(intf, &a800_properties,
  72                                   THIS_MODULE, NULL, adapter_nr);
  73}
  74
  75/* do not change the order of the ID table */
  76static struct usb_device_id a800_table [] = {
  77/* 00 */        { USB_DEVICE(USB_VID_AVERMEDIA,     USB_PID_AVERMEDIA_DVBT_USB2_COLD) },
  78/* 01 */        { USB_DEVICE(USB_VID_AVERMEDIA,     USB_PID_AVERMEDIA_DVBT_USB2_WARM) },
  79                        { }             /* Terminating entry */
  80};
  81MODULE_DEVICE_TABLE (usb, a800_table);
  82
  83static struct dvb_usb_device_properties a800_properties = {
  84        .caps = DVB_USB_IS_AN_I2C_ADAPTER,
  85
  86        .usb_ctrl = CYPRESS_FX2,
  87        .firmware = "dvb-usb-avertv-a800-02.fw",
  88
  89        .num_adapters = 1,
  90        .adapter = {
  91                {
  92                .num_frontends = 1,
  93                .fe = {{
  94                        .caps = DVB_USB_ADAP_HAS_PID_FILTER | DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
  95                        .pid_filter_count = 32,
  96                        .streaming_ctrl   = dibusb2_0_streaming_ctrl,
  97                        .pid_filter       = dibusb_pid_filter,
  98                        .pid_filter_ctrl  = dibusb_pid_filter_ctrl,
  99
 100                        .frontend_attach  = dibusb_dib3000mc_frontend_attach,
 101                        .tuner_attach     = dibusb_dib3000mc_tuner_attach,
 102
 103                        /* parameter for the MPEG2-data transfer */
 104                                        .stream = {
 105                                                .type = USB_BULK,
 106                                .count = 7,
 107                                .endpoint = 0x06,
 108                                .u = {
 109                                        .bulk = {
 110                                                .buffersize = 4096,
 111                                        }
 112                                }
 113                        },
 114                }},
 115                        .size_of_priv     = sizeof(struct dibusb_state),
 116                },
 117        },
 118
 119        .power_ctrl       = a800_power_ctrl,
 120        .identify_state   = a800_identify_state,
 121
 122        .rc.core = {
 123                .rc_interval    = DEFAULT_RC_INTERVAL,
 124                .rc_codes       = RC_MAP_AVERMEDIA_M135A,
 125                .module_name    = KBUILD_MODNAME,
 126                .rc_query       = a800_rc_query,
 127                .allowed_protos = RC_PROTO_BIT_NEC,
 128        },
 129
 130        .i2c_algo         = &dibusb_i2c_algo,
 131
 132        .generic_bulk_ctrl_endpoint = 0x01,
 133        .num_device_descs = 1,
 134        .devices = {
 135                {   "AVerMedia AverTV DVB-T USB 2.0 (A800)",
 136                        { &a800_table[0], NULL },
 137                        { &a800_table[1], NULL },
 138                },
 139        }
 140};
 141
 142static struct usb_driver a800_driver = {
 143        .name           = "dvb_usb_a800",
 144        .probe          = a800_probe,
 145        .disconnect = dvb_usb_device_exit,
 146        .id_table       = a800_table,
 147};
 148
 149module_usb_driver(a800_driver);
 150
 151MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
 152MODULE_DESCRIPTION("AVerMedia AverTV DVB-T USB 2.0 (A800)");
 153MODULE_VERSION("1.0");
 154MODULE_LICENSE("GPL");
 155