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V4L/DVB (4410): Cleanups and fixes for dsbr100
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Alan Cox
Mauro Carvalho Chehab
parent
c0c7fa0966
commit
5aff308c5e
@ -352,7 +352,7 @@ config RADIO_ZOLTRIX_PORT
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config USB_DSBR
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tristate "D-Link USB FM radio support (EXPERIMENTAL)"
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depends on USB && VIDEO_V4L1 && EXPERIMENTAL
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depends on USB && VIDEO_V4L2 && EXPERIMENTAL
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---help---
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Say Y here if you want to connect this type of radio to your
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computer's USB port. Note that the audio is not digital, and
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@ -33,8 +33,14 @@
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History:
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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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Version 0.40:
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Markus: Updates for 2.6.x kernels, code layout changes, name sanitizing
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Markus: Updates for 2.6.x kernels, code layout changes, name sanitizing
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Version 0.30:
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Markus: Updates for 2.5.x kernel and more ISO compliant source
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@ -65,13 +71,12 @@
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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>
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#include <linux/videodev.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-common.h>
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#include <linux/usb.h>
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#include <linux/smp_lock.h>
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@ -79,7 +84,22 @@
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/*
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* Version Information
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*/
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#define DRIVER_VERSION "v0.40"
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#include <linux/version.h> /* for KERNEL_VERSION MACRO */
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#define DRIVER_VERSION "v0.41"
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#define RADIO_VERSION KERNEL_VERSION(0,4,1)
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static struct v4l2_queryctrl radio_qctrl[] = {
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{
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.id = V4L2_CID_AUDIO_MUTE,
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.name = "Mute",
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.minimum = 0,
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.maximum = 1,
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.default_value = 1,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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}
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};
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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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@ -111,7 +131,7 @@ static int radio_nr = -1;
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module_param(radio_nr, int, 0);
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/* Data for one (physical) device */
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typedef struct {
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struct dsbr100_device {
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struct usb_device *usbdev;
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struct video_device *videodev;
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unsigned char transfer_buffer[TB_LEN];
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@ -119,7 +139,8 @@ typedef struct {
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int stereo;
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int users;
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int removed;
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} dsbr100_device;
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int muted;
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};
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/* File system interface */
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@ -138,7 +159,6 @@ static struct video_device dsbr100_videodev_template=
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.owner = THIS_MODULE,
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.name = "D-Link DSB-R 100",
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.type = VID_TYPE_TUNER,
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.hardware = VID_HARDWARE_AZTECH,
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.fops = &usb_dsbr100_fops,
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.release = video_device_release,
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};
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@ -161,7 +181,7 @@ static struct usb_driver usb_dsbr100_driver = {
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/* Low-level device interface begins here */
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/* switch on radio */
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static int dsbr100_start(dsbr100_device *radio)
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static int dsbr100_start(struct dsbr100_device *radio)
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{
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if (usb_control_msg(radio->usbdev, usb_rcvctrlpipe(radio->usbdev, 0),
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USB_REQ_GET_STATUS,
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@ -172,12 +192,13 @@ static int dsbr100_start(dsbr100_device *radio)
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USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
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0x01, 0x00, radio->transfer_buffer, 8, 300)<0)
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return -1;
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radio->muted=0;
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return (radio->transfer_buffer)[0];
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}
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/* switch off radio */
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static int dsbr100_stop(dsbr100_device *radio)
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static int dsbr100_stop(struct dsbr100_device *radio)
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{
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if (usb_control_msg(radio->usbdev, usb_rcvctrlpipe(radio->usbdev, 0),
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USB_REQ_GET_STATUS,
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@ -188,11 +209,12 @@ static int dsbr100_stop(dsbr100_device *radio)
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USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
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0x00, 0x00, radio->transfer_buffer, 8, 300)<0)
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return -1;
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radio->muted=1;
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return (radio->transfer_buffer)[0];
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}
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/* set a frequency, freq is defined by v4l's TUNER_LOW, i.e. 1/16th kHz */
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static int dsbr100_setfreq(dsbr100_device *radio, int freq)
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static int dsbr100_setfreq(struct dsbr100_device *radio, int freq)
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{
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freq = (freq/16*80)/1000+856;
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if (usb_control_msg(radio->usbdev, usb_rcvctrlpipe(radio->usbdev, 0),
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@ -217,7 +239,7 @@ static int dsbr100_setfreq(dsbr100_device *radio, int freq)
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/* return the device status. This is, in effect, just whether it
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sees a stereo signal or not. Pity. */
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static void dsbr100_getstat(dsbr100_device *radio)
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static void dsbr100_getstat(struct dsbr100_device *radio)
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{
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if (usb_control_msg(radio->usbdev, usb_rcvctrlpipe(radio->usbdev, 0),
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USB_REQ_GET_STATUS,
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@ -236,9 +258,9 @@ usb if it is */
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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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{
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dsbr100_device *radio;
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struct dsbr100_device *radio;
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if (!(radio = kmalloc(sizeof(dsbr100_device), GFP_KERNEL)))
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if (!(radio = kmalloc(sizeof(struct dsbr100_device), GFP_KERNEL)))
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return -ENOMEM;
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if (!(radio->videodev = video_device_alloc())) {
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kfree(radio);
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@ -271,7 +293,7 @@ code I'd expect I better did that, but if there's a memory
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leak here it's tiny (~50 bytes per disconnect) */
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static void usb_dsbr100_disconnect(struct usb_interface *intf)
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{
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dsbr100_device *radio = usb_get_intfdata(intf);
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struct dsbr100_device *radio = usb_get_intfdata(intf);
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usb_set_intfdata (intf, NULL);
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if (radio) {
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@ -291,89 +313,121 @@ static void usb_dsbr100_disconnect(struct usb_interface *intf)
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static int usb_dsbr100_do_ioctl(struct inode *inode, struct file *file,
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unsigned int cmd, void *arg)
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{
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dsbr100_device *radio=video_get_drvdata(video_devdata(file));
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struct dsbr100_device *radio=video_get_drvdata(video_devdata(file));
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if (!radio)
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return -EIO;
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switch(cmd) {
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case VIDIOCGCAP: {
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struct video_capability *v = arg;
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case VIDIOC_QUERYCAP:
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{
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struct v4l2_capability *v = arg;
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memset(v,0,sizeof(*v));
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strlcpy(v->driver, "dsbr100", sizeof (v->driver));
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strlcpy(v->card, "D-Link R-100 USB FM Radio", sizeof (v->card));
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sprintf(v->bus_info,"ISA");
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v->version = RADIO_VERSION;
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v->capabilities = V4L2_CAP_TUNER;
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memset(v, 0, sizeof(*v));
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v->type = VID_TYPE_TUNER;
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v->channels = 1;
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v->audios = 1;
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strcpy(v->name, "D-Link R-100 USB FM Radio");
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return 0;
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}
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case VIDIOCGTUNER: {
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struct video_tuner *v = arg;
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case VIDIOC_G_TUNER:
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{
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struct v4l2_tuner *v = arg;
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if (v->index > 0)
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return -EINVAL;
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dsbr100_getstat(radio);
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if(v->tuner) /* Only 1 tuner */
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return -EINVAL;
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memset(v,0,sizeof(*v));
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strcpy(v->name, "FM");
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v->type = V4L2_TUNER_RADIO;
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v->rangelow = FREQ_MIN*FREQ_MUL;
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v->rangehigh = FREQ_MAX*FREQ_MUL;
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v->flags = VIDEO_TUNER_LOW;
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v->mode = VIDEO_MODE_AUTO;
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v->signal = radio->stereo*0x7000;
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/* Don't know how to get signal strength */
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v->flags |= VIDEO_TUNER_STEREO_ON*radio->stereo;
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strcpy(v->name, "DSB R-100");
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v->rxsubchans =V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
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v->capability=V4L2_TUNER_CAP_LOW;
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if(radio->stereo)
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v->audmode = V4L2_TUNER_MODE_STEREO;
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else
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v->audmode = V4L2_TUNER_MODE_MONO;
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v->signal = 0xFFFF; /* We can't get the signal strength */
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return 0;
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}
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case VIDIOCSTUNER: {
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struct video_tuner *v = arg;
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case VIDIOC_S_TUNER:
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{
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struct v4l2_tuner *v = arg;
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if(v->tuner!=0)
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if (v->index > 0)
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return -EINVAL;
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/* Only 1 tuner so no setting needed ! */
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return 0;
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}
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case VIDIOCGFREQ: {
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int *freq = arg;
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case VIDIOC_S_FREQUENCY:
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{
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struct v4l2_frequency *f = arg;
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if (radio->curfreq==-1)
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return -EINVAL;
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*freq = radio->curfreq;
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return 0;
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}
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case VIDIOCSFREQ: {
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int *freq = arg;
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radio->curfreq = *freq;
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radio->curfreq = f->frequency;
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if (dsbr100_setfreq(radio, radio->curfreq)==-1)
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warn("Set frequency failed");
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return 0;
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}
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case VIDIOCGAUDIO: {
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struct video_audio *v = arg;
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case VIDIOC_G_FREQUENCY:
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{
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struct v4l2_frequency *f = arg;
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f->type = V4L2_TUNER_RADIO;
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f->frequency = radio->curfreq;
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memset(v, 0, sizeof(*v));
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v->flags |= VIDEO_AUDIO_MUTABLE;
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v->mode = VIDEO_SOUND_STEREO;
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v->volume = 1;
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v->step = 1;
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strcpy(v->name, "Radio");
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return 0;
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}
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case VIDIOCSAUDIO: {
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struct video_audio *v = arg;
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case VIDIOC_QUERYCTRL:
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{
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struct v4l2_queryctrl *qc = arg;
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int i;
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if (v->audio)
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return -EINVAL;
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if (v->flags&VIDEO_AUDIO_MUTE) {
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if (dsbr100_stop(radio)==-1)
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warn("Radio did not respond properly");
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for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
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if (qc->id && qc->id == radio_qctrl[i].id) {
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memcpy(qc, &(radio_qctrl[i]),
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sizeof(*qc));
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return 0;
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}
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}
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else
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if (dsbr100_start(radio)==-1)
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warn("Radio did not respond properly");
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return 0;
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return -EINVAL;
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}
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case VIDIOC_G_CTRL:
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{
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struct v4l2_control *ctrl= arg;
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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ctrl->value=radio->muted;
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return 0;
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}
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return -EINVAL;
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}
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case VIDIOC_S_CTRL:
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{
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struct v4l2_control *ctrl= arg;
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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if (ctrl->value) {
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if (dsbr100_stop(radio)==-1)
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warn("Radio did not respond properly");
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} else {
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if (dsbr100_start(radio)==-1)
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warn("Radio did not respond properly");
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}
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return 0;
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}
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return -EINVAL;
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}
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default:
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return -ENOIOCTLCMD;
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return v4l_compat_translate_ioctl(inode,file,cmd,arg,
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usb_dsbr100_do_ioctl);
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}
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}
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@ -385,9 +439,11 @@ static int usb_dsbr100_ioctl(struct inode *inode, struct file *file,
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static int usb_dsbr100_open(struct inode *inode, struct file *file)
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{
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dsbr100_device *radio=video_get_drvdata(video_devdata(file));
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struct dsbr100_device *radio=video_get_drvdata(video_devdata(file));
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radio->users = 1;
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radio->muted = 1;
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if (dsbr100_start(radio)<0) {
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warn("Radio did not start up properly");
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radio->users = 0;
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@ -399,7 +455,7 @@ static int usb_dsbr100_open(struct inode *inode, struct file *file)
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static int usb_dsbr100_close(struct inode *inode, struct file *file)
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{
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dsbr100_device *radio=video_get_drvdata(video_devdata(file));
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struct dsbr100_device *radio=video_get_drvdata(video_devdata(file));
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if (!radio)
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return -ENODEV;
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