2008-12-28 01:33:54 +00:00
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|
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/* A driver for the D-Link DSB-R100 USB radio and Gemtek USB Radio 21.
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The device plugs into both the USB and an analog audio input, so this thing
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2005-04-16 22:20:36 +00:00
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only deals with initialisation and frequency setting, the
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audio data has to be handled by a sound driver.
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Major issue: I can't find out where the device reports the signal
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strength, and indeed the windows software appearantly just looks
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at the stereo indicator as well. So, scanning will only find
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stereo stations. Sad, but I can't help it.
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Also, the windows program sends oodles of messages over to the
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device, and I couldn't figure out their meaning. My suspicion
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is that they don't have any:-)
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You might find some interesting stuff about this module at
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http://unimut.fsk.uni-heidelberg.de/unimut/demi/dsbr
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Copyright (c) 2000 Markus Demleitner <msdemlei@cl.uni-heidelberg.de>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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History:
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2009-04-03 21:45:17 +00:00
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Version 0.45:
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Converted to v4l2_device.
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2008-12-28 01:35:21 +00:00
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Version 0.44:
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Add suspend/resume functions, fix unplug of device,
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a lot of cleanups and fixes by Alexey Klimov <klimov.linux@gmail.com>
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2007-12-03 09:48:43 +00:00
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Version 0.43:
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Oliver Neukum: avoided DMA coherency issue
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2007-05-07 19:43:01 +00:00
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Version 0.42:
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Converted dsbr100 to use video_ioctl2
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by Douglas Landgraf <dougsland@gmail.com>
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2006-08-08 18:47:50 +00:00
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Version 0.41-ac1:
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Alan Cox: Some cleanups and fixes
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Version 0.41:
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Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
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|
2005-04-16 22:20:36 +00:00
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Version 0.40:
|
2006-08-08 18:47:50 +00:00
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Markus: Updates for 2.6.x kernels, code layout changes, name sanitizing
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2005-04-16 22:20:36 +00:00
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Version 0.30:
|
2006-03-25 12:19:53 +00:00
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Markus: Updates for 2.5.x kernel and more ISO compliant source
|
2005-04-16 22:20:36 +00:00
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Version 0.25:
|
2006-03-25 12:19:53 +00:00
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PSL and Markus: Cleanup, radio now doesn't stop on device close
|
2005-04-16 22:20:36 +00:00
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Version 0.24:
|
2006-03-25 12:19:53 +00:00
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Markus: Hope I got these silly VIDEO_TUNER_LOW issues finally
|
2005-04-16 22:20:36 +00:00
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right. Some minor cleanup, improved standalone compilation
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Version 0.23:
|
2006-03-25 12:19:53 +00:00
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Markus: Sign extension bug fixed by declaring transfer_buffer unsigned
|
2005-04-16 22:20:36 +00:00
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Version 0.22:
|
2006-03-25 12:19:53 +00:00
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Markus: Some (brown bag) cleanup in what VIDIOCSTUNER returns,
|
2005-04-16 22:20:36 +00:00
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thanks to Mike Cox for pointing the problem out.
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Version 0.21:
|
2006-03-25 12:19:53 +00:00
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Markus: Minor cleanup, warnings if something goes wrong, lame attempt
|
2005-04-16 22:20:36 +00:00
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to adhere to Documentation/CodingStyle
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|
2006-03-25 12:19:53 +00:00
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Version 0.2:
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Brad Hards <bradh@dynamite.com.au>: Fixes to make it work as non-module
|
2005-04-16 22:20:36 +00:00
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Markus: Copyright clarification
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Version 0.01: Markus: initial release
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|
*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/input.h>
|
2006-08-08 18:47:50 +00:00
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#include <linux/videodev2.h>
|
2009-04-03 21:45:17 +00:00
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|
#include <media/v4l2-device.h>
|
2008-07-20 11:12:02 +00:00
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#include <media/v4l2-ioctl.h>
|
2005-04-16 22:20:36 +00:00
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#include <linux/usb.h>
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/*
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|
* Version Information
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|
*/
|
2006-08-08 18:47:50 +00:00
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#include <linux/version.h> /* for KERNEL_VERSION MACRO */
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|
2009-04-03 21:45:17 +00:00
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|
#define DRIVER_VERSION "v0.45"
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|
#define RADIO_VERSION KERNEL_VERSION(0, 4, 5)
|
2006-08-08 18:47:50 +00:00
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|
2005-04-16 22:20:36 +00:00
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#define DRIVER_AUTHOR "Markus Demleitner <msdemlei@tucana.harvard.edu>"
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|
#define DRIVER_DESC "D-Link DSB-R100 USB FM radio driver"
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|
#define DSB100_VENDOR 0x04b4
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|
#define DSB100_PRODUCT 0x1002
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|
/* Commands the device appears to understand */
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|
#define DSB100_TUNE 1
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#define DSB100_ONOFF 2
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#define TB_LEN 16
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/* Frequency limits in MHz -- these are European values. For Japanese
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devices, that would be 76 and 91. */
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|
#define FREQ_MIN 87.5
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#define FREQ_MAX 108.0
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#define FREQ_MUL 16000
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|
2008-12-28 00:32:49 +00:00
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|
#define videodev_to_radio(d) container_of(d, struct dsbr100_device, videodev)
|
2005-04-16 22:20:36 +00:00
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static int usb_dsbr100_probe(struct usb_interface *intf,
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|
const struct usb_device_id *id);
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|
static void usb_dsbr100_disconnect(struct usb_interface *intf);
|
2008-11-08 03:40:46 +00:00
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|
static int usb_dsbr100_suspend(struct usb_interface *intf,
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|
pm_message_t message);
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|
static int usb_dsbr100_resume(struct usb_interface *intf);
|
2005-04-16 22:20:36 +00:00
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static int radio_nr = -1;
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|
module_param(radio_nr, int, 0);
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/* Data for one (physical) device */
|
2006-08-08 18:47:50 +00:00
|
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|
struct dsbr100_device {
|
2005-04-16 22:20:36 +00:00
|
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|
struct usb_device *usbdev;
|
2008-12-28 00:32:49 +00:00
|
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|
struct video_device videodev;
|
2009-04-03 21:45:17 +00:00
|
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|
struct v4l2_device v4l2_dev;
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|
2007-12-03 09:48:43 +00:00
|
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|
u8 *transfer_buffer;
|
2008-12-28 00:32:49 +00:00
|
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|
struct mutex lock; /* buffer locking */
|
2005-04-16 22:20:36 +00:00
|
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|
int curfreq;
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|
int stereo;
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|
int removed;
|
2006-08-08 18:47:50 +00:00
|
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|
int muted;
|
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|
};
|
2005-04-16 22:20:36 +00:00
|
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|
static struct usb_device_id usb_dsbr100_device_table [] = {
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|
|
{ USB_DEVICE(DSB100_VENDOR, DSB100_PRODUCT) },
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|
|
{ } /* Terminating entry */
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|
|
};
|
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|
MODULE_DEVICE_TABLE (usb, usb_dsbr100_device_table);
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|
/* USB subsystem interface */
|
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|
static struct usb_driver usb_dsbr100_driver = {
|
2008-11-08 03:40:46 +00:00
|
|
|
.name = "dsbr100",
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|
|
.probe = usb_dsbr100_probe,
|
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|
|
.disconnect = usb_dsbr100_disconnect,
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|
.id_table = usb_dsbr100_device_table,
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|
.suspend = usb_dsbr100_suspend,
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|
|
.resume = usb_dsbr100_resume,
|
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|
|
.reset_resume = usb_dsbr100_resume,
|
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|
|
.supports_autosuspend = 0,
|
2005-04-16 22:20:36 +00:00
|
|
|
};
|
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|
|
|
|
|
|
/* Low-level device interface begins here */
|
|
|
|
|
|
|
|
/* switch on radio */
|
2006-08-08 18:47:50 +00:00
|
|
|
static int dsbr100_start(struct dsbr100_device *radio)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-12-28 01:30:29 +00:00
|
|
|
int retval;
|
|
|
|
int request;
|
|
|
|
|
2008-12-28 00:32:49 +00:00
|
|
|
mutex_lock(&radio->lock);
|
2008-12-28 01:30:29 +00:00
|
|
|
|
|
|
|
retval = usb_control_msg(radio->usbdev,
|
|
|
|
usb_rcvctrlpipe(radio->usbdev, 0),
|
|
|
|
USB_REQ_GET_STATUS,
|
|
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
|
|
|
|
0x00, 0xC7, radio->transfer_buffer, 8, 300);
|
|
|
|
|
|
|
|
if (retval < 0) {
|
|
|
|
request = USB_REQ_GET_STATUS;
|
|
|
|
goto usb_control_msg_failed;
|
2008-12-28 00:32:49 +00:00
|
|
|
}
|
|
|
|
|
2008-12-28 01:30:29 +00:00
|
|
|
retval = usb_control_msg(radio->usbdev,
|
|
|
|
usb_rcvctrlpipe(radio->usbdev, 0),
|
|
|
|
DSB100_ONOFF,
|
|
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
|
|
|
|
0x01, 0x00, radio->transfer_buffer, 8, 300);
|
|
|
|
|
|
|
|
if (retval < 0) {
|
|
|
|
request = DSB100_ONOFF;
|
|
|
|
goto usb_control_msg_failed;
|
|
|
|
}
|
|
|
|
|
|
|
|
radio->muted = 0;
|
2008-12-28 00:32:49 +00:00
|
|
|
mutex_unlock(&radio->lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
return (radio->transfer_buffer)[0];
|
2008-12-28 01:30:29 +00:00
|
|
|
|
|
|
|
usb_control_msg_failed:
|
|
|
|
mutex_unlock(&radio->lock);
|
|
|
|
dev_err(&radio->usbdev->dev,
|
|
|
|
"%s - usb_control_msg returned %i, request %i\n",
|
|
|
|
__func__, retval, request);
|
2008-12-28 01:40:57 +00:00
|
|
|
return retval;
|
2008-12-28 01:30:29 +00:00
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* switch off radio */
|
2006-08-08 18:47:50 +00:00
|
|
|
static int dsbr100_stop(struct dsbr100_device *radio)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-12-28 01:30:29 +00:00
|
|
|
int retval;
|
|
|
|
int request;
|
|
|
|
|
2008-12-28 00:32:49 +00:00
|
|
|
mutex_lock(&radio->lock);
|
2008-12-28 01:30:29 +00:00
|
|
|
|
|
|
|
retval = usb_control_msg(radio->usbdev,
|
|
|
|
usb_rcvctrlpipe(radio->usbdev, 0),
|
|
|
|
USB_REQ_GET_STATUS,
|
|
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
|
|
|
|
0x16, 0x1C, radio->transfer_buffer, 8, 300);
|
|
|
|
|
|
|
|
if (retval < 0) {
|
|
|
|
request = USB_REQ_GET_STATUS;
|
|
|
|
goto usb_control_msg_failed;
|
|
|
|
}
|
|
|
|
|
|
|
|
retval = usb_control_msg(radio->usbdev,
|
|
|
|
usb_rcvctrlpipe(radio->usbdev, 0),
|
|
|
|
DSB100_ONOFF,
|
|
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
|
|
|
|
0x00, 0x00, radio->transfer_buffer, 8, 300);
|
|
|
|
|
|
|
|
if (retval < 0) {
|
|
|
|
request = DSB100_ONOFF;
|
|
|
|
goto usb_control_msg_failed;
|
2008-12-28 00:32:49 +00:00
|
|
|
}
|
|
|
|
|
2008-12-28 01:30:29 +00:00
|
|
|
radio->muted = 1;
|
2008-12-28 00:32:49 +00:00
|
|
|
mutex_unlock(&radio->lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
return (radio->transfer_buffer)[0];
|
2008-12-28 01:30:29 +00:00
|
|
|
|
|
|
|
usb_control_msg_failed:
|
|
|
|
mutex_unlock(&radio->lock);
|
|
|
|
dev_err(&radio->usbdev->dev,
|
|
|
|
"%s - usb_control_msg returned %i, request %i\n",
|
|
|
|
__func__, retval, request);
|
2008-12-28 01:40:57 +00:00
|
|
|
return retval;
|
2008-12-28 01:30:29 +00:00
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* set a frequency, freq is defined by v4l's TUNER_LOW, i.e. 1/16th kHz */
|
2006-08-08 18:47:50 +00:00
|
|
|
static int dsbr100_setfreq(struct dsbr100_device *radio, int freq)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-12-28 01:30:29 +00:00
|
|
|
int retval;
|
|
|
|
int request;
|
|
|
|
|
2008-10-20 02:50:27 +00:00
|
|
|
freq = (freq / 16 * 80) / 1000 + 856;
|
2008-12-28 00:32:49 +00:00
|
|
|
mutex_lock(&radio->lock);
|
2008-12-28 01:30:29 +00:00
|
|
|
|
|
|
|
retval = usb_control_msg(radio->usbdev,
|
|
|
|
usb_rcvctrlpipe(radio->usbdev, 0),
|
|
|
|
DSB100_TUNE,
|
|
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
|
|
|
|
(freq >> 8) & 0x00ff, freq & 0xff,
|
|
|
|
radio->transfer_buffer, 8, 300);
|
|
|
|
|
|
|
|
if (retval < 0) {
|
|
|
|
request = DSB100_TUNE;
|
|
|
|
goto usb_control_msg_failed;
|
|
|
|
}
|
|
|
|
|
|
|
|
retval = usb_control_msg(radio->usbdev,
|
|
|
|
usb_rcvctrlpipe(radio->usbdev, 0),
|
|
|
|
USB_REQ_GET_STATUS,
|
|
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
|
|
|
|
0x96, 0xB7, radio->transfer_buffer, 8, 300);
|
|
|
|
|
|
|
|
if (retval < 0) {
|
|
|
|
request = USB_REQ_GET_STATUS;
|
|
|
|
goto usb_control_msg_failed;
|
|
|
|
}
|
|
|
|
|
|
|
|
retval = usb_control_msg(radio->usbdev,
|
|
|
|
usb_rcvctrlpipe(radio->usbdev, 0),
|
|
|
|
USB_REQ_GET_STATUS,
|
|
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
|
|
|
|
0x00, 0x24, radio->transfer_buffer, 8, 300);
|
|
|
|
|
|
|
|
if (retval < 0) {
|
|
|
|
request = USB_REQ_GET_STATUS;
|
|
|
|
goto usb_control_msg_failed;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
2008-12-28 00:32:49 +00:00
|
|
|
|
2008-10-20 02:50:27 +00:00
|
|
|
radio->stereo = !((radio->transfer_buffer)[0] & 0x01);
|
2008-12-28 00:32:49 +00:00
|
|
|
mutex_unlock(&radio->lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
return (radio->transfer_buffer)[0];
|
2008-12-28 01:30:29 +00:00
|
|
|
|
|
|
|
usb_control_msg_failed:
|
|
|
|
radio->stereo = -1;
|
|
|
|
mutex_unlock(&radio->lock);
|
|
|
|
dev_err(&radio->usbdev->dev,
|
|
|
|
"%s - usb_control_msg returned %i, request %i\n",
|
|
|
|
__func__, retval, request);
|
2008-12-28 01:40:57 +00:00
|
|
|
return retval;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* return the device status. This is, in effect, just whether it
|
|
|
|
sees a stereo signal or not. Pity. */
|
2006-08-08 18:47:50 +00:00
|
|
|
static void dsbr100_getstat(struct dsbr100_device *radio)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-12-28 01:30:29 +00:00
|
|
|
int retval;
|
|
|
|
|
2008-12-28 00:32:49 +00:00
|
|
|
mutex_lock(&radio->lock);
|
2008-12-28 01:30:29 +00:00
|
|
|
|
|
|
|
retval = usb_control_msg(radio->usbdev,
|
|
|
|
usb_rcvctrlpipe(radio->usbdev, 0),
|
2006-03-25 12:19:53 +00:00
|
|
|
USB_REQ_GET_STATUS,
|
2005-04-16 22:20:36 +00:00
|
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
|
2008-12-28 01:30:29 +00:00
|
|
|
0x00 , 0x24, radio->transfer_buffer, 8, 300);
|
|
|
|
|
|
|
|
if (retval < 0) {
|
2005-04-16 22:20:36 +00:00
|
|
|
radio->stereo = -1;
|
2008-12-28 01:30:29 +00:00
|
|
|
dev_err(&radio->usbdev->dev,
|
|
|
|
"%s - usb_control_msg returned %i, request %i\n",
|
|
|
|
__func__, retval, USB_REQ_GET_STATUS);
|
|
|
|
} else {
|
2008-10-20 02:50:27 +00:00
|
|
|
radio->stereo = !(radio->transfer_buffer[0] & 0x01);
|
2008-12-28 01:30:29 +00:00
|
|
|
}
|
|
|
|
|
2008-12-28 00:32:49 +00:00
|
|
|
mutex_unlock(&radio->lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* USB subsystem interface begins here */
|
|
|
|
|
2008-12-28 01:33:54 +00:00
|
|
|
/*
|
|
|
|
* Handle unplugging of the device.
|
|
|
|
* We call video_unregister_device in any case.
|
|
|
|
* The last function called in this procedure is
|
|
|
|
* usb_dsbr100_video_device_release
|
|
|
|
*/
|
2005-04-16 22:20:36 +00:00
|
|
|
static void usb_dsbr100_disconnect(struct usb_interface *intf)
|
|
|
|
{
|
2006-08-08 18:47:50 +00:00
|
|
|
struct dsbr100_device *radio = usb_get_intfdata(intf);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
usb_set_intfdata (intf, NULL);
|
2008-12-28 00:32:49 +00:00
|
|
|
|
|
|
|
mutex_lock(&radio->lock);
|
|
|
|
radio->removed = 1;
|
|
|
|
mutex_unlock(&radio->lock);
|
|
|
|
|
|
|
|
video_unregister_device(&radio->videodev);
|
2009-04-03 21:45:17 +00:00
|
|
|
v4l2_device_disconnect(&radio->v4l2_dev);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
static int vidioc_querycap(struct file *file, void *priv,
|
|
|
|
struct v4l2_capability *v)
|
|
|
|
{
|
2009-01-25 23:05:58 +00:00
|
|
|
struct dsbr100_device *radio = video_drvdata(file);
|
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
strlcpy(v->driver, "dsbr100", sizeof(v->driver));
|
|
|
|
strlcpy(v->card, "D-Link R-100 USB FM Radio", sizeof(v->card));
|
2009-01-25 23:05:58 +00:00
|
|
|
usb_make_path(radio->usbdev, v->bus_info, sizeof(v->bus_info));
|
2007-05-07 19:43:01 +00:00
|
|
|
v->version = RADIO_VERSION;
|
|
|
|
v->capabilities = V4L2_CAP_TUNER;
|
|
|
|
return 0;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
static int vidioc_g_tuner(struct file *file, void *priv,
|
|
|
|
struct v4l2_tuner *v)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-08-23 11:32:09 +00:00
|
|
|
struct dsbr100_device *radio = video_drvdata(file);
|
2007-05-07 19:43:01 +00:00
|
|
|
|
2008-12-28 00:32:49 +00:00
|
|
|
/* safety check */
|
|
|
|
if (radio->removed)
|
|
|
|
return -EIO;
|
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
if (v->index > 0)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
dsbr100_getstat(radio);
|
|
|
|
strcpy(v->name, "FM");
|
|
|
|
v->type = V4L2_TUNER_RADIO;
|
2008-10-20 02:50:27 +00:00
|
|
|
v->rangelow = FREQ_MIN * FREQ_MUL;
|
|
|
|
v->rangehigh = FREQ_MAX * FREQ_MUL;
|
|
|
|
v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
|
2007-05-07 19:43:01 +00:00
|
|
|
v->capability = V4L2_TUNER_CAP_LOW;
|
|
|
|
if(radio->stereo)
|
|
|
|
v->audmode = V4L2_TUNER_MODE_STEREO;
|
|
|
|
else
|
|
|
|
v->audmode = V4L2_TUNER_MODE_MONO;
|
|
|
|
v->signal = 0xffff; /* We can't get the signal strength */
|
|
|
|
return 0;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
static int vidioc_s_tuner(struct file *file, void *priv,
|
|
|
|
struct v4l2_tuner *v)
|
|
|
|
{
|
2008-12-28 00:32:49 +00:00
|
|
|
struct dsbr100_device *radio = video_drvdata(file);
|
|
|
|
|
|
|
|
/* safety check */
|
|
|
|
if (radio->removed)
|
|
|
|
return -EIO;
|
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
if (v->index > 0)
|
|
|
|
return -EINVAL;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
return 0;
|
|
|
|
}
|
2006-08-08 18:47:50 +00:00
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
static int vidioc_s_frequency(struct file *file, void *priv,
|
|
|
|
struct v4l2_frequency *f)
|
|
|
|
{
|
2008-08-23 11:32:09 +00:00
|
|
|
struct dsbr100_device *radio = video_drvdata(file);
|
2008-12-28 01:30:29 +00:00
|
|
|
int retval;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-12-28 00:32:49 +00:00
|
|
|
/* safety check */
|
|
|
|
if (radio->removed)
|
|
|
|
return -EIO;
|
|
|
|
|
2009-02-08 05:00:14 +00:00
|
|
|
mutex_lock(&radio->lock);
|
2007-05-07 19:43:01 +00:00
|
|
|
radio->curfreq = f->frequency;
|
2009-02-08 05:00:14 +00:00
|
|
|
mutex_unlock(&radio->lock);
|
|
|
|
|
2008-12-28 01:30:29 +00:00
|
|
|
retval = dsbr100_setfreq(radio, radio->curfreq);
|
2008-12-28 01:40:57 +00:00
|
|
|
if (retval < 0)
|
2008-08-14 16:37:34 +00:00
|
|
|
dev_warn(&radio->usbdev->dev, "Set frequency failed\n");
|
2007-05-07 19:43:01 +00:00
|
|
|
return 0;
|
|
|
|
}
|
2006-08-08 18:47:50 +00:00
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
static int vidioc_g_frequency(struct file *file, void *priv,
|
|
|
|
struct v4l2_frequency *f)
|
|
|
|
{
|
2008-08-23 11:32:09 +00:00
|
|
|
struct dsbr100_device *radio = video_drvdata(file);
|
2006-08-08 18:47:50 +00:00
|
|
|
|
2008-12-28 00:32:49 +00:00
|
|
|
/* safety check */
|
|
|
|
if (radio->removed)
|
|
|
|
return -EIO;
|
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
f->type = V4L2_TUNER_RADIO;
|
|
|
|
f->frequency = radio->curfreq;
|
|
|
|
return 0;
|
|
|
|
}
|
2006-08-08 18:47:50 +00:00
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
static int vidioc_queryctrl(struct file *file, void *priv,
|
|
|
|
struct v4l2_queryctrl *qc)
|
|
|
|
{
|
2009-04-03 21:45:17 +00:00
|
|
|
switch (qc->id) {
|
|
|
|
case V4L2_CID_AUDIO_MUTE:
|
|
|
|
return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
|
2007-05-07 19:43:01 +00:00
|
|
|
}
|
2009-04-03 21:45:17 +00:00
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
2006-08-08 18:47:50 +00:00
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
static int vidioc_g_ctrl(struct file *file, void *priv,
|
|
|
|
struct v4l2_control *ctrl)
|
|
|
|
{
|
2008-08-23 11:32:09 +00:00
|
|
|
struct dsbr100_device *radio = video_drvdata(file);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-12-28 00:32:49 +00:00
|
|
|
/* safety check */
|
|
|
|
if (radio->removed)
|
|
|
|
return -EIO;
|
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
switch (ctrl->id) {
|
|
|
|
case V4L2_CID_AUDIO_MUTE:
|
|
|
|
ctrl->value = radio->muted;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
2006-08-08 18:47:50 +00:00
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
static int vidioc_s_ctrl(struct file *file, void *priv,
|
|
|
|
struct v4l2_control *ctrl)
|
|
|
|
{
|
2008-08-23 11:32:09 +00:00
|
|
|
struct dsbr100_device *radio = video_drvdata(file);
|
2008-12-28 01:30:29 +00:00
|
|
|
int retval;
|
2006-08-08 18:47:50 +00:00
|
|
|
|
2008-12-28 00:32:49 +00:00
|
|
|
/* safety check */
|
|
|
|
if (radio->removed)
|
|
|
|
return -EIO;
|
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
switch (ctrl->id) {
|
|
|
|
case V4L2_CID_AUDIO_MUTE:
|
|
|
|
if (ctrl->value) {
|
2008-12-28 01:30:29 +00:00
|
|
|
retval = dsbr100_stop(radio);
|
2008-12-28 01:40:57 +00:00
|
|
|
if (retval < 0) {
|
2008-08-14 16:37:34 +00:00
|
|
|
dev_warn(&radio->usbdev->dev,
|
|
|
|
"Radio did not respond properly\n");
|
2008-10-09 16:42:32 +00:00
|
|
|
return -EBUSY;
|
|
|
|
}
|
2007-05-07 19:43:01 +00:00
|
|
|
} else {
|
2008-12-28 01:30:29 +00:00
|
|
|
retval = dsbr100_start(radio);
|
2008-12-28 01:40:57 +00:00
|
|
|
if (retval < 0) {
|
2008-08-14 16:37:34 +00:00
|
|
|
dev_warn(&radio->usbdev->dev,
|
|
|
|
"Radio did not respond properly\n");
|
2008-10-09 16:42:32 +00:00
|
|
|
return -EBUSY;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
2007-05-07 19:43:01 +00:00
|
|
|
return 0;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
2007-05-07 19:43:01 +00:00
|
|
|
return -EINVAL;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
static int vidioc_g_audio(struct file *file, void *priv,
|
|
|
|
struct v4l2_audio *a)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2007-05-07 19:43:01 +00:00
|
|
|
if (a->index > 1)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
strcpy(a->name, "Radio");
|
|
|
|
a->capability = V4L2_AUDCAP_STEREO;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
|
|
|
|
{
|
|
|
|
*i = 0;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
|
|
|
|
{
|
|
|
|
if (i != 0)
|
|
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vidioc_s_audio(struct file *file, void *priv,
|
|
|
|
struct v4l2_audio *a)
|
|
|
|
{
|
|
|
|
if (a->index != 0)
|
|
|
|
return -EINVAL;
|
|
|
|
return 0;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-11-08 03:40:46 +00:00
|
|
|
/* Suspend device - stop device. */
|
|
|
|
static int usb_dsbr100_suspend(struct usb_interface *intf, pm_message_t message)
|
|
|
|
{
|
|
|
|
struct dsbr100_device *radio = usb_get_intfdata(intf);
|
|
|
|
int retval;
|
|
|
|
|
|
|
|
retval = dsbr100_stop(radio);
|
2008-12-28 01:40:57 +00:00
|
|
|
if (retval < 0)
|
2008-11-08 03:40:46 +00:00
|
|
|
dev_warn(&intf->dev, "dsbr100_stop failed\n");
|
|
|
|
|
|
|
|
dev_info(&intf->dev, "going into suspend..\n");
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Resume device - start device. */
|
|
|
|
static int usb_dsbr100_resume(struct usb_interface *intf)
|
|
|
|
{
|
|
|
|
struct dsbr100_device *radio = usb_get_intfdata(intf);
|
|
|
|
int retval;
|
|
|
|
|
|
|
|
retval = dsbr100_start(radio);
|
2008-12-28 01:40:57 +00:00
|
|
|
if (retval < 0)
|
2008-11-08 03:40:46 +00:00
|
|
|
dev_warn(&intf->dev, "dsbr100_start failed\n");
|
|
|
|
|
|
|
|
dev_info(&intf->dev, "coming out of suspend..\n");
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-12-28 01:33:54 +00:00
|
|
|
/* free data structures */
|
2008-12-28 00:32:49 +00:00
|
|
|
static void usb_dsbr100_video_device_release(struct video_device *videodev)
|
|
|
|
{
|
|
|
|
struct dsbr100_device *radio = videodev_to_radio(videodev);
|
|
|
|
|
2009-04-03 21:45:17 +00:00
|
|
|
v4l2_device_unregister(&radio->v4l2_dev);
|
2008-12-28 00:32:49 +00:00
|
|
|
kfree(radio->transfer_buffer);
|
|
|
|
kfree(radio);
|
|
|
|
}
|
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
/* File system interface */
|
2008-12-30 09:58:20 +00:00
|
|
|
static const struct v4l2_file_operations usb_dsbr100_fops = {
|
2007-05-07 19:43:01 +00:00
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.ioctl = video_ioctl2,
|
|
|
|
};
|
|
|
|
|
2008-07-21 05:57:38 +00:00
|
|
|
static const struct v4l2_ioctl_ops usb_dsbr100_ioctl_ops = {
|
2007-05-07 19:43:01 +00:00
|
|
|
.vidioc_querycap = vidioc_querycap,
|
|
|
|
.vidioc_g_tuner = vidioc_g_tuner,
|
|
|
|
.vidioc_s_tuner = vidioc_s_tuner,
|
|
|
|
.vidioc_g_frequency = vidioc_g_frequency,
|
|
|
|
.vidioc_s_frequency = vidioc_s_frequency,
|
|
|
|
.vidioc_queryctrl = vidioc_queryctrl,
|
|
|
|
.vidioc_g_ctrl = vidioc_g_ctrl,
|
|
|
|
.vidioc_s_ctrl = vidioc_s_ctrl,
|
|
|
|
.vidioc_g_audio = vidioc_g_audio,
|
|
|
|
.vidioc_s_audio = vidioc_s_audio,
|
|
|
|
.vidioc_g_input = vidioc_g_input,
|
|
|
|
.vidioc_s_input = vidioc_s_input,
|
|
|
|
};
|
|
|
|
|
2008-12-28 01:33:54 +00:00
|
|
|
/* check if the device is present and register with v4l and usb if it is */
|
2007-05-07 19:43:01 +00:00
|
|
|
static int usb_dsbr100_probe(struct usb_interface *intf,
|
|
|
|
const struct usb_device_id *id)
|
|
|
|
{
|
|
|
|
struct dsbr100_device *radio;
|
2009-04-03 21:45:17 +00:00
|
|
|
struct v4l2_device *v4l2_dev;
|
2008-12-28 01:30:29 +00:00
|
|
|
int retval;
|
2007-05-07 19:43:01 +00:00
|
|
|
|
2009-04-03 21:45:17 +00:00
|
|
|
radio = kzalloc(sizeof(struct dsbr100_device), GFP_KERNEL);
|
2008-10-20 02:50:27 +00:00
|
|
|
|
|
|
|
if (!radio)
|
2007-05-07 19:43:01 +00:00
|
|
|
return -ENOMEM;
|
2008-10-20 02:50:27 +00:00
|
|
|
|
|
|
|
radio->transfer_buffer = kmalloc(TB_LEN, GFP_KERNEL);
|
|
|
|
|
|
|
|
if (!(radio->transfer_buffer)) {
|
2007-12-03 09:48:43 +00:00
|
|
|
kfree(radio);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
2008-10-20 02:50:27 +00:00
|
|
|
|
2009-04-03 21:45:17 +00:00
|
|
|
v4l2_dev = &radio->v4l2_dev;
|
|
|
|
|
|
|
|
retval = v4l2_device_register(&intf->dev, v4l2_dev);
|
|
|
|
if (retval < 0) {
|
|
|
|
v4l2_err(v4l2_dev, "couldn't register v4l2_device\n");
|
|
|
|
kfree(radio->transfer_buffer);
|
|
|
|
kfree(radio);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
strlcpy(radio->videodev.name, v4l2_dev->name, sizeof(radio->videodev.name));
|
|
|
|
radio->videodev.v4l2_dev = v4l2_dev;
|
|
|
|
radio->videodev.fops = &usb_dsbr100_fops;
|
|
|
|
radio->videodev.ioctl_ops = &usb_dsbr100_ioctl_ops;
|
|
|
|
radio->videodev.release = usb_dsbr100_video_device_release;
|
|
|
|
|
2008-12-28 00:32:49 +00:00
|
|
|
mutex_init(&radio->lock);
|
|
|
|
|
2007-05-07 19:43:01 +00:00
|
|
|
radio->removed = 0;
|
|
|
|
radio->usbdev = interface_to_usbdev(intf);
|
2008-10-20 02:50:27 +00:00
|
|
|
radio->curfreq = FREQ_MIN * FREQ_MUL;
|
2009-04-03 21:45:17 +00:00
|
|
|
|
2008-12-28 00:32:49 +00:00
|
|
|
video_set_drvdata(&radio->videodev, radio);
|
2009-04-03 21:45:17 +00:00
|
|
|
|
2008-12-28 01:30:29 +00:00
|
|
|
retval = video_register_device(&radio->videodev, VFL_TYPE_RADIO, radio_nr);
|
|
|
|
if (retval < 0) {
|
2009-04-03 21:45:17 +00:00
|
|
|
v4l2_err(v4l2_dev, "couldn't register video device\n");
|
|
|
|
v4l2_device_unregister(v4l2_dev);
|
2007-12-03 09:48:43 +00:00
|
|
|
kfree(radio->transfer_buffer);
|
2007-05-07 19:43:01 +00:00
|
|
|
kfree(radio);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
usb_set_intfdata(intf, radio);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
static int __init dsbr100_init(void)
|
|
|
|
{
|
|
|
|
int retval = usb_register(&usb_dsbr100_driver);
|
2008-10-10 08:08:23 +00:00
|
|
|
printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
|
|
|
|
DRIVER_DESC "\n");
|
2005-04-16 22:20:36 +00:00
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit dsbr100_exit(void)
|
|
|
|
{
|
|
|
|
usb_deregister(&usb_dsbr100_driver);
|
|
|
|
}
|
|
|
|
|
|
|
|
module_init (dsbr100_init);
|
|
|
|
module_exit (dsbr100_exit);
|
|
|
|
|
|
|
|
MODULE_AUTHOR( DRIVER_AUTHOR );
|
|
|
|
MODULE_DESCRIPTION( DRIVER_DESC );
|
|
|
|
MODULE_LICENSE("GPL");
|