Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /* A driver for the D-Link DSB-R100 USB radio and Gemtek USB Radio 21.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * The device plugs into both the USB and an analog audio input, so this thing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * only deals with initialisation and frequency setting, the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * audio data has to be handled by a sound driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * Major issue: I can't find out where the device reports the signal
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * strength, and indeed the windows software appearantly just looks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * at the stereo indicator as well.  So, scanning will only find
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  * stereo stations.  Sad, but I can't help it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  * Also, the windows program sends oodles of messages over to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  * device, and I couldn't figure out their meaning.  My suspicion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  * is that they don't have any:-)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)  * You might find some interesting stuff about this module at
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17)  * http://unimut.fsk.uni-heidelberg.de/unimut/demi/dsbr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  * Fully tested with the Keene USB FM Transmitter and the v4l2-compliance tool.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21)  * Copyright (c) 2000 Markus Demleitner <msdemlei@cl.uni-heidelberg.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #include <linux/videodev2.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #include <media/v4l2-device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #include <media/v4l2-ioctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) #include <media/v4l2-ctrls.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) #include <media/v4l2-event.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37)  * Version Information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) MODULE_AUTHOR("Markus Demleitner <msdemlei@tucana.harvard.edu>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) MODULE_DESCRIPTION("D-Link DSB-R100 USB FM radio driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) MODULE_VERSION("1.1.0");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) #define DSB100_VENDOR 0x04b4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) #define DSB100_PRODUCT 0x1002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) /* Commands the device appears to understand */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) #define DSB100_TUNE 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) #define DSB100_ONOFF 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) #define TB_LEN 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) /* Frequency limits in MHz -- these are European values.  For Japanese
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) devices, that would be 76 and 91.  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) #define FREQ_MIN  87.5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) #define FREQ_MAX 108.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) #define FREQ_MUL 16000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) #define v4l2_dev_to_radio(d) container_of(d, struct dsbr100_device, v4l2_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) static int radio_nr = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) module_param(radio_nr, int, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) /* Data for one (physical) device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) struct dsbr100_device {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	struct usb_device *usbdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	struct video_device videodev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	struct v4l2_device v4l2_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	struct v4l2_ctrl_handler hdl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	u8 *transfer_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	struct mutex v4l2_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	int curfreq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	bool stereo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	bool muted;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) /* Low-level device interface begins here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) /* set a frequency, freq is defined by v4l's TUNER_LOW, i.e. 1/16th kHz */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) static int dsbr100_setfreq(struct dsbr100_device *radio, unsigned freq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	unsigned f = (freq / 16 * 80) / 1000 + 856;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	int retval = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	if (!radio->muted) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 		retval = usb_control_msg(radio->usbdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 				usb_rcvctrlpipe(radio->usbdev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 				DSB100_TUNE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 				USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 				(f >> 8) & 0x00ff, f & 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 				radio->transfer_buffer, 8, 300);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 		if (retval >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 			mdelay(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	if (retval >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		radio->curfreq = freq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	dev_err(&radio->usbdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 		"%s - usb_control_msg returned %i, request %i\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 			__func__, retval, DSB100_TUNE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) /* switch on radio */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) static int dsbr100_start(struct dsbr100_device *radio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	int retval = usb_control_msg(radio->usbdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		usb_rcvctrlpipe(radio->usbdev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 		DSB100_ONOFF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 		USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		0x01, 0x00, radio->transfer_buffer, 8, 300);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	if (retval >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		return dsbr100_setfreq(radio, radio->curfreq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	dev_err(&radio->usbdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 		"%s - usb_control_msg returned %i, request %i\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 			__func__, retval, DSB100_ONOFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) /* switch off radio */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static int dsbr100_stop(struct dsbr100_device *radio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	int retval = usb_control_msg(radio->usbdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		usb_rcvctrlpipe(radio->usbdev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		DSB100_ONOFF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		0x00, 0x00, radio->transfer_buffer, 8, 300);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	if (retval >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	dev_err(&radio->usbdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 		"%s - usb_control_msg returned %i, request %i\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 			__func__, retval, DSB100_ONOFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) /* return the device status.  This is, in effect, just whether it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) sees a stereo signal or not.  Pity. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) static void dsbr100_getstat(struct dsbr100_device *radio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	int retval = usb_control_msg(radio->usbdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 		usb_rcvctrlpipe(radio->usbdev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 		USB_REQ_GET_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		0x00, 0x24, radio->transfer_buffer, 8, 300);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	if (retval < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		radio->stereo = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		dev_err(&radio->usbdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 			"%s - usb_control_msg returned %i, request %i\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 				__func__, retval, USB_REQ_GET_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		radio->stereo = !(radio->transfer_buffer[0] & 0x01);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) static int vidioc_querycap(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 					struct v4l2_capability *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	struct dsbr100_device *radio = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	strscpy(v->driver, "dsbr100", sizeof(v->driver));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	strscpy(v->card, "D-Link R-100 USB FM Radio", sizeof(v->card));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	usb_make_path(radio->usbdev, v->bus_info, sizeof(v->bus_info));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) static int vidioc_g_tuner(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 				struct v4l2_tuner *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	struct dsbr100_device *radio = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	if (v->index > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	dsbr100_getstat(radio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	strscpy(v->name, "FM", sizeof(v->name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	v->type = V4L2_TUNER_RADIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	v->rangelow = FREQ_MIN * FREQ_MUL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	v->rangehigh = FREQ_MAX * FREQ_MUL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	v->rxsubchans = radio->stereo ? V4L2_TUNER_SUB_STEREO :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 		V4L2_TUNER_SUB_MONO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	v->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	v->audmode = V4L2_TUNER_MODE_STEREO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	v->signal = radio->stereo ? 0xffff : 0;     /* We can't get the signal strength */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) static int vidioc_s_tuner(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 				const struct v4l2_tuner *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	return v->index ? -EINVAL : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) static int vidioc_s_frequency(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 				const struct v4l2_frequency *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	struct dsbr100_device *radio = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	return dsbr100_setfreq(radio, clamp_t(unsigned, f->frequency,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 			FREQ_MIN * FREQ_MUL, FREQ_MAX * FREQ_MUL));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) static int vidioc_g_frequency(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 				struct v4l2_frequency *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	struct dsbr100_device *radio = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	if (f->tuner)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	f->type = V4L2_TUNER_RADIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	f->frequency = radio->curfreq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) static int usb_dsbr100_s_ctrl(struct v4l2_ctrl *ctrl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	struct dsbr100_device *radio =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 		container_of(ctrl->handler, struct dsbr100_device, hdl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	switch (ctrl->id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	case V4L2_CID_AUDIO_MUTE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 		radio->muted = ctrl->val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 		return radio->muted ? dsbr100_stop(radio) : dsbr100_start(radio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) }
^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) /* USB subsystem interface begins here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)  * Handle unplugging of the device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)  * We call video_unregister_device in any case.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)  * The last function called in this procedure is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)  * usb_dsbr100_video_device_release
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) static void usb_dsbr100_disconnect(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	struct dsbr100_device *radio = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	mutex_lock(&radio->v4l2_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	 * Disconnect is also called on unload, and in that case we need to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	 * mute the device. This call will silently fail if it is called
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	 * after a physical disconnect.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	usb_control_msg(radio->usbdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 		usb_rcvctrlpipe(radio->usbdev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 		DSB100_ONOFF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 		USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 		0x00, 0x00, radio->transfer_buffer, 8, 300);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	usb_set_intfdata(intf, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	video_unregister_device(&radio->videodev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	v4l2_device_disconnect(&radio->v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	mutex_unlock(&radio->v4l2_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	v4l2_device_put(&radio->v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) /* Suspend device - stop device. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) static int usb_dsbr100_suspend(struct usb_interface *intf, pm_message_t message)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	struct dsbr100_device *radio = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	mutex_lock(&radio->v4l2_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	if (!radio->muted && dsbr100_stop(radio) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 		dev_warn(&intf->dev, "dsbr100_stop failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	mutex_unlock(&radio->v4l2_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	dev_info(&intf->dev, "going into suspend..\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) /* Resume device - start device. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) static int usb_dsbr100_resume(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	struct dsbr100_device *radio = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	mutex_lock(&radio->v4l2_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	if (!radio->muted && dsbr100_start(radio) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 		dev_warn(&intf->dev, "dsbr100_start failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	mutex_unlock(&radio->v4l2_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	dev_info(&intf->dev, "coming out of suspend..\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) /* free data structures */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) static void usb_dsbr100_release(struct v4l2_device *v4l2_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	struct dsbr100_device *radio = v4l2_dev_to_radio(v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	v4l2_ctrl_handler_free(&radio->hdl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	v4l2_device_unregister(&radio->v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	kfree(radio->transfer_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	kfree(radio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) static const struct v4l2_ctrl_ops usb_dsbr100_ctrl_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	.s_ctrl = usb_dsbr100_s_ctrl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) /* File system interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) static const struct v4l2_file_operations usb_dsbr100_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 	.owner		= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	.unlocked_ioctl	= video_ioctl2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	.open           = v4l2_fh_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	.release        = v4l2_fh_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	.poll		= v4l2_ctrl_poll,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) static const struct v4l2_ioctl_ops usb_dsbr100_ioctl_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	.vidioc_querycap    = vidioc_querycap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	.vidioc_g_tuner     = vidioc_g_tuner,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 	.vidioc_s_tuner     = vidioc_s_tuner,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 	.vidioc_g_frequency = vidioc_g_frequency,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	.vidioc_s_frequency = vidioc_s_frequency,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 	.vidioc_log_status  = v4l2_ctrl_log_status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) /* check if the device is present and register with v4l and usb if it is */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) static int usb_dsbr100_probe(struct usb_interface *intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 				const struct usb_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 	struct dsbr100_device *radio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	struct v4l2_device *v4l2_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 	radio = kzalloc(sizeof(struct dsbr100_device), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 	if (!radio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 	radio->transfer_buffer = kmalloc(TB_LEN, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 	if (!(radio->transfer_buffer)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 		kfree(radio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 	v4l2_dev = &radio->v4l2_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	v4l2_dev->release = usb_dsbr100_release;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 	retval = v4l2_device_register(&intf->dev, v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 	if (retval < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 		v4l2_err(v4l2_dev, "couldn't register v4l2_device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 		goto err_reg_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 	v4l2_ctrl_handler_init(&radio->hdl, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 	v4l2_ctrl_new_std(&radio->hdl, &usb_dsbr100_ctrl_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 			  V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 	if (radio->hdl.error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 		retval = radio->hdl.error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 		v4l2_err(v4l2_dev, "couldn't register control\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 		goto err_reg_ctrl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 	mutex_init(&radio->v4l2_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 	strscpy(radio->videodev.name, v4l2_dev->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 		sizeof(radio->videodev.name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 	radio->videodev.v4l2_dev = v4l2_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 	radio->videodev.fops = &usb_dsbr100_fops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	radio->videodev.ioctl_ops = &usb_dsbr100_ioctl_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 	radio->videodev.release = video_device_release_empty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 	radio->videodev.lock = &radio->v4l2_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 	radio->videodev.ctrl_handler = &radio->hdl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 	radio->videodev.device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 	radio->usbdev = interface_to_usbdev(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 	radio->curfreq = FREQ_MIN * FREQ_MUL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 	radio->muted = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 	video_set_drvdata(&radio->videodev, radio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 	usb_set_intfdata(intf, radio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 	retval = video_register_device(&radio->videodev, VFL_TYPE_RADIO, radio_nr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 	if (retval == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 	v4l2_err(v4l2_dev, "couldn't register video device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) err_reg_ctrl:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 	v4l2_ctrl_handler_free(&radio->hdl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 	v4l2_device_unregister(v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) err_reg_dev:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 	kfree(radio->transfer_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 	kfree(radio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 	return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) static const struct usb_device_id usb_dsbr100_device_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 	{ USB_DEVICE(DSB100_VENDOR, DSB100_PRODUCT) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 	{ }						/* Terminating entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) MODULE_DEVICE_TABLE(usb, usb_dsbr100_device_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) /* USB subsystem interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) static struct usb_driver usb_dsbr100_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 	.name			= "dsbr100",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 	.probe			= usb_dsbr100_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 	.disconnect		= usb_dsbr100_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 	.id_table		= usb_dsbr100_device_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) 	.suspend		= usb_dsbr100_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 	.resume			= usb_dsbr100_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) 	.reset_resume		= usb_dsbr100_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) module_usb_driver(usb_dsbr100_driver);