^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * DVB USB library - provides a generic interface for a DVB USB device driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * dvb-usb-init.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "dvb-usb-common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) /* debug */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) int dvb_usb_debug;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) module_param_named(debug, dvb_usb_debug, int, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,pll=4,ts=8,err=16,rc=32,fw=64,mem=128,uxfer=256 (or-able))." DVB_USB_DEBUG_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) int dvb_usb_disable_rc_polling;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) module_param_named(disable_rc_polling, dvb_usb_disable_rc_polling, int, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) MODULE_PARM_DESC(disable_rc_polling, "disable remote control polling (default: 0).");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static int dvb_usb_force_pid_filter_usage;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) module_param_named(force_pid_filter_usage, dvb_usb_force_pid_filter_usage, int, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) MODULE_PARM_DESC(force_pid_filter_usage, "force all dvb-usb-devices to use a PID filter, if any (default: 0).");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static int dvb_usb_adapter_init(struct dvb_usb_device *d, short *adapter_nrs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct dvb_usb_adapter *adap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) int ret, n, o;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) for (n = 0; n < d->props.num_adapters; n++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) adap = &d->adapter[n];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) adap->dev = d;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) adap->id = n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) memcpy(&adap->props, &d->props.adapter[n], sizeof(struct dvb_usb_adapter_properties));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) for (o = 0; o < adap->props.num_frontends; o++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct dvb_usb_adapter_fe_properties *props = &adap->props.fe[o];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) /* speed - when running at FULL speed we need a HW PID filter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) if (d->udev->speed == USB_SPEED_FULL && !(props->caps & DVB_USB_ADAP_HAS_PID_FILTER)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) err("This USB2.0 device cannot be run on a USB1.1 port. (it lacks a hardware PID filter)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) if ((d->udev->speed == USB_SPEED_FULL && props->caps & DVB_USB_ADAP_HAS_PID_FILTER) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) (props->caps & DVB_USB_ADAP_NEED_PID_FILTERING)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) info("will use the device's hardware PID filter (table count: %d).", props->pid_filter_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) adap->fe_adap[o].pid_filtering = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) adap->fe_adap[o].max_feed_count = props->pid_filter_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) info("will pass the complete MPEG2 transport stream to the software demuxer.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) adap->fe_adap[o].pid_filtering = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) adap->fe_adap[o].max_feed_count = 255;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) if (!adap->fe_adap[o].pid_filtering &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) dvb_usb_force_pid_filter_usage &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) props->caps & DVB_USB_ADAP_HAS_PID_FILTER) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) info("pid filter enabled by module option.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) adap->fe_adap[o].pid_filtering = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) adap->fe_adap[o].max_feed_count = props->pid_filter_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) if (props->size_of_priv > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) adap->fe_adap[o].priv = kzalloc(props->size_of_priv, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) if (adap->fe_adap[o].priv == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) err("no memory for priv for adapter %d fe %d.", n, o);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) if (adap->props.size_of_priv > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) adap->priv = kzalloc(adap->props.size_of_priv, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) if (adap->priv == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) err("no memory for priv for adapter %d.", n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) ret = dvb_usb_adapter_stream_init(adap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) ret = dvb_usb_adapter_dvb_init(adap, adapter_nrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) goto dvb_init_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) ret = dvb_usb_adapter_frontend_init(adap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) goto frontend_init_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) /* use exclusive FE lock if there is multiple shared FEs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) if (adap->fe_adap[1].fe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) adap->dvb_adap.mfe_shared = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) d->num_adapters_initialized++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) d->state |= DVB_USB_STATE_DVB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * when reloading the driver w/o replugging the device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * sometimes a timeout occurs, this helps
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) if (d->props.generic_bulk_ctrl_endpoint != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) usb_clear_halt(d->udev, usb_sndbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) frontend_init_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) dvb_usb_adapter_dvb_exit(adap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) dvb_init_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) dvb_usb_adapter_stream_exit(adap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static int dvb_usb_adapter_exit(struct dvb_usb_device *d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) int n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) for (n = 0; n < d->num_adapters_initialized; n++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) dvb_usb_adapter_frontend_exit(&d->adapter[n]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) dvb_usb_adapter_dvb_exit(&d->adapter[n]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) dvb_usb_adapter_stream_exit(&d->adapter[n]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) kfree(d->adapter[n].priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) d->num_adapters_initialized = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) d->state &= ~DVB_USB_STATE_DVB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) /* general initialization functions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) static int dvb_usb_exit(struct dvb_usb_device *d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) deb_info("state before exiting everything: %x\n", d->state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) dvb_usb_remote_exit(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) dvb_usb_adapter_exit(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) dvb_usb_i2c_exit(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) deb_info("state should be zero now: %x\n", d->state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) d->state = DVB_USB_STATE_INIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) if (d->priv != NULL && d->props.priv_destroy != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) d->props.priv_destroy(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) kfree(d->priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) kfree(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) static int dvb_usb_init(struct dvb_usb_device *d, short *adapter_nums)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) mutex_init(&d->data_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) mutex_init(&d->usb_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) mutex_init(&d->i2c_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) d->state = DVB_USB_STATE_INIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) if (d->props.size_of_priv > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) d->priv = kzalloc(d->props.size_of_priv, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) if (d->priv == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) err("no memory for priv in 'struct dvb_usb_device'");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) if (d->props.priv_init != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) ret = d->props.priv_init(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) if (ret != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) goto err_priv_init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) /* check the capabilities and set appropriate variables */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) dvb_usb_device_power_ctrl(d, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) ret = dvb_usb_i2c_init(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) goto err_i2c_init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) ret = dvb_usb_adapter_init(d, adapter_nums);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) goto err_adapter_init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) if ((ret = dvb_usb_remote_init(d)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) err("could not initialize remote control.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) dvb_usb_device_power_ctrl(d, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) err_adapter_init:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) dvb_usb_adapter_exit(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) dvb_usb_i2c_exit(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) err_i2c_init:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) if (d->priv && d->props.priv_destroy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) d->props.priv_destroy(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) err_priv_init:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) kfree(d->priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) d->priv = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) /* determine the name and the state of the just found USB device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) static const struct dvb_usb_device_description *dvb_usb_find_device(struct usb_device *udev, const struct dvb_usb_device_properties *props, int *cold)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) const struct dvb_usb_device_description *desc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) *cold = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) for (i = 0; i < props->num_device_descs; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) for (j = 0; j < DVB_USB_ID_MAX_NUM && props->devices[i].cold_ids[j] != NULL; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) deb_info("check for cold %x %x\n", props->devices[i].cold_ids[j]->idVendor, props->devices[i].cold_ids[j]->idProduct);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) if (props->devices[i].cold_ids[j]->idVendor == le16_to_cpu(udev->descriptor.idVendor) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) props->devices[i].cold_ids[j]->idProduct == le16_to_cpu(udev->descriptor.idProduct)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) *cold = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) desc = &props->devices[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) if (desc != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) for (j = 0; j < DVB_USB_ID_MAX_NUM && props->devices[i].warm_ids[j] != NULL; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) deb_info("check for warm %x %x\n", props->devices[i].warm_ids[j]->idVendor, props->devices[i].warm_ids[j]->idProduct);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) if (props->devices[i].warm_ids[j]->idVendor == le16_to_cpu(udev->descriptor.idVendor) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) props->devices[i].warm_ids[j]->idProduct == le16_to_cpu(udev->descriptor.idProduct)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) *cold = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) desc = &props->devices[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) if (desc != NULL && props->identify_state != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) props->identify_state(udev, props, &desc, cold);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) return desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) int dvb_usb_device_power_ctrl(struct dvb_usb_device *d, int onoff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) if (onoff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) d->powered++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) d->powered--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) if (d->powered == 0 || (onoff && d->powered == 1)) { /* when switching from 1 to 0 or from 0 to 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) deb_info("power control: %d\n", onoff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) if (d->props.power_ctrl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) return d->props.power_ctrl(d, onoff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) * USB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) int dvb_usb_device_init(struct usb_interface *intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) const struct dvb_usb_device_properties *props,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) struct module *owner, struct dvb_usb_device **du,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) short *adapter_nums)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) struct usb_device *udev = interface_to_usbdev(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) struct dvb_usb_device *d = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) const struct dvb_usb_device_description *desc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) int ret = -ENOMEM, cold = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) if (du != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) *du = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) d = kzalloc(sizeof(*d), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) if (!d) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) err("no memory for 'struct dvb_usb_device'");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) memcpy(&d->props, props, sizeof(struct dvb_usb_device_properties));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) desc = dvb_usb_find_device(udev, &d->props, &cold);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) if (!desc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) deb_err("something went very wrong, device was not found in current device list - let's see what comes next.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) ret = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) if (cold) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) info("found a '%s' in cold state, will try to load a firmware", desc->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) ret = dvb_usb_download_firmware(udev, props);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) if (!props->no_reconnect || ret != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) info("found a '%s' in warm state.", desc->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) d->udev = udev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) d->desc = desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) d->owner = owner;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) usb_set_intfdata(intf, d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) ret = dvb_usb_init(d, adapter_nums);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) info("%s error while loading driver (%d)", desc->name, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) if (du)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) *du = d;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) info("%s successfully initialized and connected.", desc->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) usb_set_intfdata(intf, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) kfree(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) EXPORT_SYMBOL(dvb_usb_device_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) void dvb_usb_device_exit(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) struct dvb_usb_device *d = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) const char *default_name = "generic DVB-USB module";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) char name[40];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) usb_set_intfdata(intf, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) if (d != NULL && d->desc != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) strscpy(name, d->desc->name, sizeof(name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) dvb_usb_exit(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) strscpy(name, default_name, sizeof(name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) info("%s successfully deinitialized and disconnected.", name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) EXPORT_SYMBOL(dvb_usb_device_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) MODULE_VERSION("1.0");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) MODULE_DESCRIPTION("A library module containing commonly used USB and DVB function USB DVB devices");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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