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
  18 static int debug;
  19 module_param(debug, int, 0644);
  20 MODULE_PARM_DESC(debug, "set debugging level (rc=1 (or-able))." DVB_USB_DEBUG_STATUS);
  21
  22 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  23
  24 #define deb_rc(args...)   dprintk(debug,0x01,args)
  25
  26 static 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 */
  33 static 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
  40 static 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);
  60 out:
  61         kfree(key);
  62         return ret;
  63 }
  64
  65 /* USB Driver stuff */
  66 static struct dvb_usb_device_properties a800_properties;
  67
  68 static 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 */
  76 static 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 };
  81 MODULE_DEVICE_TABLE (usb, a800_table);
  82
  83 static 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
 142 static 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
 149 module_usb_driver(a800_driver);
 150
 151 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
 152 MODULE_DESCRIPTION("AVerMedia AverTV DVB-T USB 2.0 (A800)");
 153 MODULE_VERSION("1.0");
 154 MODULE_LICENSE("GPL");