diff options
Diffstat (limited to 'drivers/media/usb/dvb-usb/a800.c')
| -rw-r--r-- | drivers/media/usb/dvb-usb/a800.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/drivers/media/usb/dvb-usb/a800.c b/drivers/media/usb/dvb-usb/a800.c new file mode 100644 index 0000000000..5f29478492 --- /dev/null +++ b/drivers/media/usb/dvb-usb/a800.c @@ -0,0 +1,159 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* 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. + * + * see Documentation/driver-api/media/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, + const struct dvb_usb_device_properties *props, + const 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 */ +enum { + AVERMEDIA_DVBT_USB2_COLD, + AVERMEDIA_DVBT_USB2_WARM, +}; + +static struct usb_device_id a800_table[] = { + DVB_USB_DEV(AVERMEDIA, AVERMEDIA_DVBT_USB2_COLD), + DVB_USB_DEV(AVERMEDIA, AVERMEDIA_DVBT_USB2_WARM), + { } +}; + +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, + .fe = {{ + .caps = DVB_USB_ADAP_HAS_PID_FILTER | DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF, + .pid_filter_count = 32, + .streaming_ctrl = dibusb2_0_streaming_ctrl, + .pid_filter = dibusb_pid_filter, + .pid_filter_ctrl = dibusb_pid_filter_ctrl, + + .frontend_attach = dibusb_dib3000mc_frontend_attach, + .tuner_attach = dibusb_dib3000mc_tuner_attach, + + /* parameter for the MPEG2-data transfer */ + .stream = { + .type = USB_BULK, + .count = 7, + .endpoint = 0x06, + .u = { + .bulk = { + .buffersize = 4096, + } + } + }, + }}, + .size_of_priv = sizeof(struct dibusb_state), + }, + }, + + .power_ctrl = a800_power_ctrl, + .identify_state = a800_identify_state, + + .rc.core = { + .rc_interval = DEFAULT_RC_INTERVAL, + .rc_codes = RC_MAP_AVERMEDIA_M135A, + .module_name = KBUILD_MODNAME, + .rc_query = a800_rc_query, + .allowed_protos = RC_PROTO_BIT_NEC, + }, + + .i2c_algo = &dibusb_i2c_algo, + + .generic_bulk_ctrl_endpoint = 0x01, + .num_device_descs = 1, + .devices = { + { "AVerMedia AverTV DVB-T USB 2.0 (A800)", + { &a800_table[AVERMEDIA_DVBT_USB2_COLD], NULL }, + { &a800_table[AVERMEDIA_DVBT_USB2_WARM], NULL }, + }, + } +}; + +static struct usb_driver a800_driver = { + .name = "dvb_usb_a800", + .probe = a800_probe, + .disconnect = dvb_usb_device_exit, + .id_table = a800_table, +}; + +module_usb_driver(a800_driver); + +MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>"); +MODULE_DESCRIPTION("AVerMedia AverTV DVB-T USB 2.0 (A800)"); +MODULE_VERSION("1.0"); +MODULE_LICENSE("GPL"); |