160 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2/* DVB USB framework compliant Linux driver for the AVerMedia AverTV DVB-T3 * USB2.0 (A800) DVB-T receiver.4 *5 * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@posteo.de)6 *7 * Thanks to8 * - AVerMedia who kindly provided information and9 * - Glen Harris who suffered from my mistakes during development.10 *11 * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information12 */13#include "dibusb.h"14 15static int debug;16module_param(debug, int, 0644);17MODULE_PARM_DESC(debug, "set debugging level (rc=1 (or-able))." DVB_USB_DEBUG_STATUS);18 19DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);20 21#define deb_rc(args...) dprintk(debug,0x01,args)22 23static int a800_power_ctrl(struct dvb_usb_device *d, int onoff)24{25 /* do nothing for the AVerMedia */26 return 0;27}28 29/* assure to put cold to 0 for iManufacturer == 1 */30static int a800_identify_state(struct usb_device *udev,31 const struct dvb_usb_device_properties *props,32 const struct dvb_usb_device_description **desc,33 int *cold)34{35 *cold = udev->descriptor.iManufacturer != 1;36 return 0;37}38 39static int a800_rc_query(struct dvb_usb_device *d)40{41 int ret = 0;42 u8 *key = kmalloc(5, GFP_KERNEL);43 if (!key)44 return -ENOMEM;45 46 if (usb_control_msg(d->udev,usb_rcvctrlpipe(d->udev,0),47 0x04, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, key, 5,48 2000) != 5) {49 ret = -ENODEV;50 goto out;51 }52 53 /* Note that extended nec and nec32 are dropped */54 if (key[0] == 1)55 rc_keydown(d->rc_dev, RC_PROTO_NEC,56 RC_SCANCODE_NEC(key[1], key[3]), 0);57 else if (key[0] == 2)58 rc_repeat(d->rc_dev);59out:60 kfree(key);61 return ret;62}63 64/* USB Driver stuff */65static struct dvb_usb_device_properties a800_properties;66 67static int a800_probe(struct usb_interface *intf,68 const struct usb_device_id *id)69{70 return dvb_usb_device_init(intf, &a800_properties,71 THIS_MODULE, NULL, adapter_nr);72}73 74/* do not change the order of the ID table */75enum {76 AVERMEDIA_DVBT_USB2_COLD,77 AVERMEDIA_DVBT_USB2_WARM,78};79 80static struct usb_device_id a800_table[] = {81 DVB_USB_DEV(AVERMEDIA, AVERMEDIA_DVBT_USB2_COLD),82 DVB_USB_DEV(AVERMEDIA, AVERMEDIA_DVBT_USB2_WARM),83 { }84};85 86MODULE_DEVICE_TABLE (usb, a800_table);87 88static struct dvb_usb_device_properties a800_properties = {89 .caps = DVB_USB_IS_AN_I2C_ADAPTER,90 91 .usb_ctrl = CYPRESS_FX2,92 .firmware = "dvb-usb-avertv-a800-02.fw",93 94 .num_adapters = 1,95 .adapter = {96 {97 .num_frontends = 1,98 .fe = {{99 .caps = DVB_USB_ADAP_HAS_PID_FILTER | DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,100 .pid_filter_count = 32,101 .streaming_ctrl = dibusb2_0_streaming_ctrl,102 .pid_filter = dibusb_pid_filter,103 .pid_filter_ctrl = dibusb_pid_filter_ctrl,104 105 .frontend_attach = dibusb_dib3000mc_frontend_attach,106 .tuner_attach = dibusb_dib3000mc_tuner_attach,107 108 /* parameter for the MPEG2-data transfer */109 .stream = {110 .type = USB_BULK,111 .count = 7,112 .endpoint = 0x06,113 .u = {114 .bulk = {115 .buffersize = 4096,116 }117 }118 },119 }},120 .size_of_priv = sizeof(struct dibusb_state),121 },122 },123 124 .power_ctrl = a800_power_ctrl,125 .identify_state = a800_identify_state,126 127 .rc.core = {128 .rc_interval = DEFAULT_RC_INTERVAL,129 .rc_codes = RC_MAP_AVERMEDIA_M135A,130 .module_name = KBUILD_MODNAME,131 .rc_query = a800_rc_query,132 .allowed_protos = RC_PROTO_BIT_NEC,133 },134 135 .i2c_algo = &dibusb_i2c_algo,136 137 .generic_bulk_ctrl_endpoint = 0x01,138 .num_device_descs = 1,139 .devices = {140 { "AVerMedia AverTV DVB-T USB 2.0 (A800)",141 { &a800_table[AVERMEDIA_DVBT_USB2_COLD], NULL },142 { &a800_table[AVERMEDIA_DVBT_USB2_WARM], NULL },143 },144 }145};146 147static struct usb_driver a800_driver = {148 .name = "dvb_usb_a800",149 .probe = a800_probe,150 .disconnect = dvb_usb_device_exit,151 .id_table = a800_table,152};153 154module_usb_driver(a800_driver);155 156MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");157MODULE_DESCRIPTION("AVerMedia AverTV DVB-T USB 2.0 (A800)");158MODULE_VERSION("1.0");159MODULE_LICENSE("GPL");160