diff options
Diffstat (limited to 'v4l/kernel-2.6.tmp/dvb-usb-init.c')
-rw-r--r-- | v4l/kernel-2.6.tmp/dvb-usb-init.c | 285 |
1 files changed, 0 insertions, 285 deletions
diff --git a/v4l/kernel-2.6.tmp/dvb-usb-init.c b/v4l/kernel-2.6.tmp/dvb-usb-init.c deleted file mode 100644 index cdd717c..0000000 --- a/v4l/kernel-2.6.tmp/dvb-usb-init.c +++ /dev/null @@ -1,285 +0,0 @@ -/* - * DVB USB library - provides a generic interface for a DVB USB device driver. - * - * dvb-usb-init.c - * - * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de) - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation, version 2. - * - * see Documentation/dvb/README.dvb-usb for more information - */ -#include "dvb-usb-common.h" - -/* debug */ -int dvb_usb_debug; -module_param_named(debug,dvb_usb_debug, int, 0644); -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); - -int dvb_usb_disable_rc_polling; -module_param_named(disable_rc_polling, dvb_usb_disable_rc_polling, int, 0644); -MODULE_PARM_DESC(disable_rc_polling, "disable remote control polling (default: 0)."); - -static int dvb_usb_force_pid_filter_usage; -module_param_named(force_pid_filter_usage, dvb_usb_force_pid_filter_usage, int, 0444); -MODULE_PARM_DESC(force_pid_filter_usage, "force all dvb-usb-devices to use a PID filter, if any (default: 0)."); - -static int dvb_usb_adapter_init(struct dvb_usb_device *d) -{ - struct dvb_usb_adapter *adap; - int ret,n; - - for (n = 0; n < d->props.num_adapters; n++) { - adap = &d->adapter[n]; - adap->dev = d; - adap->id = n; - - memcpy(&adap->props, &d->props.adapter[n], sizeof(struct dvb_usb_adapter_properties)); - -/* speed - when running at FULL speed we need a HW PID filter */ - if (d->udev->speed == USB_SPEED_FULL && !(adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER)) { - err("This USB2.0 device cannot be run on a USB1.1 port. (it lacks a hardware PID filter)"); - return -ENODEV; - } - - if ((d->udev->speed == USB_SPEED_FULL && adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER) || - (adap->props.caps & DVB_USB_ADAP_NEED_PID_FILTERING)) { - info("will use the device's hardware PID filter (table count: %d).",adap->props.pid_filter_count); - adap->pid_filtering = 1; - adap->max_feed_count = adap->props.pid_filter_count; - } else { - info("will pass the complete MPEG2 transport stream to the software demuxer."); - adap->pid_filtering = 0; - adap->max_feed_count = 255; - } - - if (!adap->pid_filtering && - dvb_usb_force_pid_filter_usage && - adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER) { - info("pid filter enabled by module option."); - adap->pid_filtering = 1; - adap->max_feed_count = adap->props.pid_filter_count; - } - - if (adap->props.size_of_priv > 0) { - adap->priv = kzalloc(adap->props.size_of_priv,GFP_KERNEL); - if (adap->priv == NULL) { - err("no memory for priv for adapter %d.",n); - return -ENOMEM; - } - } - - if ((ret = dvb_usb_adapter_stream_init(adap)) || - (ret = dvb_usb_adapter_dvb_init(adap)) || - (ret = dvb_usb_adapter_frontend_init(adap))) { - return ret; - } - - d->num_adapters_initialized++; - d->state |= DVB_USB_STATE_DVB; - } - - /* - * when reloading the driver w/o replugging the device - * sometimes a timeout occures, this helps - */ - if (d->props.generic_bulk_ctrl_endpoint != 0) { - usb_clear_halt(d->udev,usb_sndbulkpipe(d->udev,d->props.generic_bulk_ctrl_endpoint)); - usb_clear_halt(d->udev,usb_rcvbulkpipe(d->udev,d->props.generic_bulk_ctrl_endpoint)); - } - - return 0; -} - -static int dvb_usb_adapter_exit(struct dvb_usb_device *d) -{ - int n; - for (n = 0; n < d->num_adapters_initialized; n++) { - dvb_usb_adapter_frontend_exit(&d->adapter[n]); - dvb_usb_adapter_dvb_exit(&d->adapter[n]); - dvb_usb_adapter_stream_exit(&d->adapter[n]); - kfree(d->adapter[n].priv); - } - d->num_adapters_initialized = 0; - d->state &= ~DVB_USB_STATE_DVB; - return 0; -} - - -/* general initialization functions */ -static int dvb_usb_exit(struct dvb_usb_device *d) -{ - deb_info("state before exiting everything: %x\n",d->state); - dvb_usb_remote_exit(d); - dvb_usb_adapter_exit(d); - dvb_usb_i2c_exit(d); - deb_info("state should be zero now: %x\n",d->state); - d->state = DVB_USB_STATE_INIT; - kfree(d->priv); - kfree(d); - return 0; -} - -static int dvb_usb_init(struct dvb_usb_device *d) -{ - int ret = 0; - - mutex_init(&d->usb_mutex); - mutex_init(&d->i2c_mutex); - - d->state = DVB_USB_STATE_INIT; - - if (d->props.size_of_priv > 0) { - d->priv = kzalloc(d->props.size_of_priv,GFP_KERNEL); - if (d->priv == NULL) { - err("no memory for priv in 'struct dvb_usb_device'"); - return -ENOMEM; - } - } - -/* check the capabilities and set appropriate variables */ - dvb_usb_device_power_ctrl(d, 1); - - if ((ret = dvb_usb_i2c_init(d)) || - (ret = dvb_usb_adapter_init(d))) { - dvb_usb_exit(d); - return ret; - } - - if ((ret = dvb_usb_remote_init(d))) - err("could not initialize remote control."); - - dvb_usb_device_power_ctrl(d, 0); - - return 0; -} - -/* determine the name and the state of the just found USB device */ -static struct dvb_usb_device_description * dvb_usb_find_device(struct usb_device *udev,struct dvb_usb_device_properties *props, int *cold) -{ - int i,j; - struct dvb_usb_device_description *desc = NULL; - *cold = -1; - - for (i = 0; i < props->num_device_descs; i++) { - - for (j = 0; j < DVB_USB_ID_MAX_NUM && props->devices[i].cold_ids[j] != NULL; j++) { - deb_info("check for cold %x %x\n",props->devices[i].cold_ids[j]->idVendor, props->devices[i].cold_ids[j]->idProduct); - if (props->devices[i].cold_ids[j]->idVendor == le16_to_cpu(udev->descriptor.idVendor) && - props->devices[i].cold_ids[j]->idProduct == le16_to_cpu(udev->descriptor.idProduct)) { - *cold = 1; - desc = &props->devices[i]; - break; - } - } - - if (desc != NULL) - break; - - for (j = 0; j < DVB_USB_ID_MAX_NUM && props->devices[i].warm_ids[j] != NULL; j++) { - deb_info("check for warm %x %x\n",props->devices[i].warm_ids[j]->idVendor, props->devices[i].warm_ids[j]->idProduct); - if (props->devices[i].warm_ids[j]->idVendor == le16_to_cpu(udev->descriptor.idVendor) && - props->devices[i].warm_ids[j]->idProduct == le16_to_cpu(udev->descriptor.idProduct)) { - *cold = 0; - desc = &props->devices[i]; - break; - } - } - } - - if (desc != NULL && props->identify_state != NULL) - props->identify_state(udev,props,&desc,cold); - - return desc; -} - -int dvb_usb_device_power_ctrl(struct dvb_usb_device *d, int onoff) -{ - if (onoff) - d->powered++; - else - d->powered--; - - if (d->powered == 0 || (onoff && d->powered == 1)) { // when switching from 1 to 0 or from 0 to 1 - deb_info("power control: %d\n", onoff); - if (d->props.power_ctrl) - return d->props.power_ctrl(d, onoff); - } - return 0; -} - -/* - * USB - */ -int dvb_usb_device_init(struct usb_interface *intf, struct dvb_usb_device_properties - *props, struct module *owner,struct dvb_usb_device **du) -{ - struct usb_device *udev = interface_to_usbdev(intf); - struct dvb_usb_device *d = NULL; - struct dvb_usb_device_description *desc = NULL; - - int ret = -ENOMEM,cold=0; - - if (du != NULL) - *du = NULL; - - if ((desc = dvb_usb_find_device(udev,props,&cold)) == NULL) { - deb_err("something went very wrong, device was not found in current device list - let's see what comes next.\n"); - return -ENODEV; - } - - if (cold) { - info("found a '%s' in cold state, will try to load a firmware",desc->name); - ret = dvb_usb_download_firmware(udev,props); - if (!props->no_reconnect || ret != 0) - return ret; - } - - info("found a '%s' in warm state.",desc->name); - d = kzalloc(sizeof(struct dvb_usb_device),GFP_KERNEL); - if (d == NULL) { - err("no memory for 'struct dvb_usb_device'"); - return ret; - } - - d->udev = udev; - memcpy(&d->props,props,sizeof(struct dvb_usb_device_properties)); - d->desc = desc; - d->owner = owner; - - usb_set_intfdata(intf, d); - - if (du != NULL) - *du = d; - - ret = dvb_usb_init(d); - - if (ret == 0) - info("%s successfully initialized and connected.",desc->name); - else - info("%s error while loading driver (%d)",desc->name,ret); - return ret; -} -EXPORT_SYMBOL(dvb_usb_device_init); - -void dvb_usb_device_exit(struct usb_interface *intf) -{ - struct dvb_usb_device *d = usb_get_intfdata(intf); - const char *name = "generic DVB-USB module"; - - usb_set_intfdata(intf,NULL); - if (d != NULL && d->desc != NULL) { - name = d->desc->name; - dvb_usb_exit(d); - } - info("%s successfully deinitialized and disconnected.",name); - -} -EXPORT_SYMBOL(dvb_usb_device_exit); - -MODULE_VERSION("1.0"); -MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>"); -MODULE_DESCRIPTION("A library module containing commonly used USB and DVB function USB DVB devices"); -MODULE_LICENSE("GPL"); |