V4L/DVB (10892): radio-typhoon: convert to v4l2_device.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
1dc8aafc79
commit
f1bfe89b67
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@ -34,37 +34,16 @@
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#include <linux/module.h> /* Modules */
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#include <linux/init.h> /* Initdata */
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#include <linux/ioport.h> /* request_region */
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#include <linux/proc_fs.h> /* radio card status report */
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#include <linux/seq_file.h>
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#include <asm/io.h> /* outb, outb_p */
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#include <asm/uaccess.h> /* copy to/from user */
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#include <linux/version.h> /* for KERNEL_VERSION MACRO */
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#include <linux/videodev2.h> /* kernel radio structs */
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#include <media/v4l2-common.h>
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#include <linux/io.h> /* outb, outb_p */
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#include <linux/uaccess.h> /* copy to/from user */
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#include <media/v4l2-device.h>
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#include <media/v4l2-ioctl.h>
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#include <linux/version.h> /* for KERNEL_VERSION MACRO */
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#define RADIO_VERSION KERNEL_VERSION(0,1,1)
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#define BANNER "Typhoon Radio Card driver v0.1.1\n"
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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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.id = V4L2_CID_AUDIO_VOLUME,
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.name = "Volume",
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.minimum = 0,
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.maximum = 65535,
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.step = 1<<14,
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.default_value = 0xff,
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.type = V4L2_CTRL_TYPE_INTEGER,
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}
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};
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MODULE_AUTHOR("Dr. Henrik Seidel");
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MODULE_DESCRIPTION("A driver for the Typhoon radio card (a.k.a. EcoRadio).");
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MODULE_LICENSE("GPL");
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#ifndef CONFIG_RADIO_TYPHOON_PORT
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#define CONFIG_RADIO_TYPHOON_PORT -1
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@ -74,13 +53,26 @@ static struct v4l2_queryctrl radio_qctrl[] = {
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#define CONFIG_RADIO_TYPHOON_MUTEFREQ 0
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#endif
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#ifndef CONFIG_PROC_FS
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#undef CONFIG_RADIO_TYPHOON_PROC_FS
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#endif
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static int io = CONFIG_RADIO_TYPHOON_PORT;
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static int radio_nr = -1;
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struct typhoon_device {
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unsigned long in_use;
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int iobase;
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module_param(io, int, 0);
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MODULE_PARM_DESC(io, "I/O address of the Typhoon card (0x316 or 0x336)");
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module_param(radio_nr, int, 0);
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static unsigned long mutefreq = CONFIG_RADIO_TYPHOON_MUTEFREQ;
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module_param(mutefreq, ulong, 0);
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MODULE_PARM_DESC(mutefreq, "Frequency used when muting the card (in kHz)");
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#define RADIO_VERSION KERNEL_VERSION(0, 1, 1)
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#define BANNER "Typhoon Radio Card driver v0.1.1\n"
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struct typhoon {
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struct v4l2_device v4l2_dev;
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struct video_device vdev;
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int io;
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int curvol;
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int muted;
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unsigned long curfreq;
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@ -88,25 +80,19 @@ struct typhoon_device {
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struct mutex lock;
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};
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static void typhoon_setvol_generic(struct typhoon_device *dev, int vol);
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static int typhoon_setfreq_generic(struct typhoon_device *dev,
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unsigned long frequency);
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static int typhoon_setfreq(struct typhoon_device *dev, unsigned long frequency);
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static void typhoon_mute(struct typhoon_device *dev);
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static void typhoon_unmute(struct typhoon_device *dev);
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static int typhoon_setvol(struct typhoon_device *dev, int vol);
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static struct typhoon typhoon_card;
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static void typhoon_setvol_generic(struct typhoon_device *dev, int vol)
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static void typhoon_setvol_generic(struct typhoon *dev, int vol)
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{
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mutex_lock(&dev->lock);
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vol >>= 14; /* Map 16 bit to 2 bit */
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vol &= 3;
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outb_p(vol / 2, dev->iobase); /* Set the volume, high bit. */
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outb_p(vol % 2, dev->iobase + 2); /* Set the volume, low bit. */
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outb_p(vol / 2, dev->io); /* Set the volume, high bit. */
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outb_p(vol % 2, dev->io + 2); /* Set the volume, low bit. */
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mutex_unlock(&dev->lock);
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}
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static int typhoon_setfreq_generic(struct typhoon_device *dev,
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static int typhoon_setfreq_generic(struct typhoon *dev,
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unsigned long frequency)
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{
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unsigned long outval;
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@ -130,22 +116,22 @@ static int typhoon_setfreq_generic(struct typhoon_device *dev,
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outval -= (10 * x * x + 10433) / 20866;
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outval += 4 * x - 11505;
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outb_p((outval >> 8) & 0x01, dev->iobase + 4);
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outb_p(outval >> 9, dev->iobase + 6);
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outb_p(outval & 0xff, dev->iobase + 8);
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outb_p((outval >> 8) & 0x01, dev->io + 4);
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outb_p(outval >> 9, dev->io + 6);
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outb_p(outval & 0xff, dev->io + 8);
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mutex_unlock(&dev->lock);
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return 0;
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}
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static int typhoon_setfreq(struct typhoon_device *dev, unsigned long frequency)
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static int typhoon_setfreq(struct typhoon *dev, unsigned long frequency)
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{
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typhoon_setfreq_generic(dev, frequency);
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dev->curfreq = frequency;
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return 0;
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}
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static void typhoon_mute(struct typhoon_device *dev)
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static void typhoon_mute(struct typhoon *dev)
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{
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if (dev->muted == 1)
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return;
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@ -154,7 +140,7 @@ static void typhoon_mute(struct typhoon_device *dev)
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dev->muted = 1;
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}
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static void typhoon_unmute(struct typhoon_device *dev)
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static void typhoon_unmute(struct typhoon *dev)
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{
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if (dev->muted == 0)
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return;
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@ -163,7 +149,7 @@ static void typhoon_unmute(struct typhoon_device *dev)
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dev->muted = 0;
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}
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static int typhoon_setvol(struct typhoon_device *dev, int vol)
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static int typhoon_setvol(struct typhoon *dev, int vol)
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{
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if (dev->muted && vol != 0) { /* user is unmuting the card */
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dev->curvol = vol;
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@ -188,9 +174,9 @@ static int vidioc_querycap(struct file *file, void *priv,
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{
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strlcpy(v->driver, "radio-typhoon", sizeof(v->driver));
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strlcpy(v->card, "Typhoon Radio", sizeof(v->card));
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sprintf(v->bus_info, "ISA");
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strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
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v->version = RADIO_VERSION;
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v->capabilities = V4L2_CAP_TUNER;
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v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
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return 0;
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}
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@ -200,10 +186,10 @@ static int vidioc_g_tuner(struct file *file, void *priv,
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if (v->index > 0)
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return -EINVAL;
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strcpy(v->name, "FM");
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strlcpy(v->name, "FM", sizeof(v->name));
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v->type = V4L2_TUNER_RADIO;
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v->rangelow = (87.5*16000);
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v->rangehigh = (108*16000);
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v->rangelow = 87.5 * 16000;
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v->rangehigh = 108 * 16000;
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v->rxsubchans = V4L2_TUNER_SUB_MONO;
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v->capability = V4L2_TUNER_CAP_LOW;
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v->audmode = V4L2_TUNER_MODE_MONO;
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@ -214,44 +200,37 @@ static int vidioc_g_tuner(struct file *file, void *priv,
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static int vidioc_s_tuner(struct file *file, void *priv,
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struct v4l2_tuner *v)
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{
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if (v->index > 0)
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return -EINVAL;
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return v->index ? -EINVAL : 0;
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}
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static int vidioc_g_frequency(struct file *file, void *priv,
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struct v4l2_frequency *f)
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{
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struct typhoon *dev = video_drvdata(file);
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f->type = V4L2_TUNER_RADIO;
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f->frequency = dev->curfreq;
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return 0;
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}
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static int vidioc_s_frequency(struct file *file, void *priv,
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struct v4l2_frequency *f)
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{
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struct typhoon_device *typhoon = video_drvdata(file);
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typhoon->curfreq = f->frequency;
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typhoon_setfreq(typhoon, typhoon->curfreq);
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return 0;
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}
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static int vidioc_g_frequency(struct file *file, void *priv,
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struct v4l2_frequency *f)
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{
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struct typhoon_device *typhoon = video_drvdata(file);
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f->type = V4L2_TUNER_RADIO;
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f->frequency = typhoon->curfreq;
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struct typhoon *dev = video_drvdata(file);
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dev->curfreq = f->frequency;
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typhoon_setfreq(dev, dev->curfreq);
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return 0;
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}
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static int vidioc_queryctrl(struct file *file, void *priv,
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struct v4l2_queryctrl *qc)
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{
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int i;
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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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switch (qc->id) {
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case V4L2_CID_AUDIO_MUTE:
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return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
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case V4L2_CID_AUDIO_VOLUME:
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return v4l2_ctrl_query_fill(qc, 0, 65535, 16384, 65535);
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}
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return -EINVAL;
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}
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@ -259,14 +238,14 @@ static int vidioc_queryctrl(struct file *file, void *priv,
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static int vidioc_g_ctrl(struct file *file, void *priv,
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struct v4l2_control *ctrl)
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{
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struct typhoon_device *typhoon = video_drvdata(file);
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struct typhoon *dev = video_drvdata(file);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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ctrl->value = typhoon->muted;
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ctrl->value = dev->muted;
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return 0;
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case V4L2_CID_AUDIO_VOLUME:
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ctrl->value = typhoon->curvol;
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ctrl->value = dev->curvol;
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return 0;
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}
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return -EINVAL;
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@ -275,33 +254,22 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
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static int vidioc_s_ctrl (struct file *file, void *priv,
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struct v4l2_control *ctrl)
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{
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struct typhoon_device *typhoon = video_drvdata(file);
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struct typhoon *dev = video_drvdata(file);
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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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typhoon_mute(typhoon);
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typhoon_mute(dev);
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else
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typhoon_unmute(typhoon);
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typhoon_unmute(dev);
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return 0;
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case V4L2_CID_AUDIO_VOLUME:
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typhoon_setvol(typhoon, ctrl->value);
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typhoon_setvol(dev, ctrl->value);
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return 0;
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}
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return -EINVAL;
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}
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static int vidioc_g_audio(struct file *file, void *priv,
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struct v4l2_audio *a)
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{
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if (a->index > 1)
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return -EINVAL;
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strcpy(a->name, "Radio");
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a->capability = V4L2_AUDCAP_STEREO;
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return 0;
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}
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static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
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{
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*i = 0;
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@ -310,45 +278,62 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
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static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
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{
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if (i != 0)
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return -EINVAL;
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return i ? -EINVAL : 0;
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}
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static int vidioc_g_audio(struct file *file, void *priv,
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struct v4l2_audio *a)
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{
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a->index = 0;
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strlcpy(a->name, "Radio", sizeof(a->name));
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a->capability = V4L2_AUDCAP_STEREO;
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return 0;
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}
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static int vidioc_s_audio(struct file *file, void *priv,
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struct v4l2_audio *a)
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{
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if (a->index != 0)
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return -EINVAL;
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return a->index ? -EINVAL : 0;
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}
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static int vidioc_log_status(struct file *file, void *priv)
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{
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struct typhoon *dev = video_drvdata(file);
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struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
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v4l2_info(v4l2_dev, BANNER);
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#ifdef MODULE
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v4l2_info(v4l2_dev, "Load type: Driver loaded as a module\n\n");
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#else
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v4l2_info(v4l2_dev, "Load type: Driver compiled into kernel\n\n");
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#endif
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v4l2_info(v4l2_dev, "frequency = %lu kHz\n", dev->curfreq >> 4);
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v4l2_info(v4l2_dev, "volume = %d\n", dev->curvol);
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v4l2_info(v4l2_dev, "mute = %s\n", dev->muted ? "on" : "off");
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v4l2_info(v4l2_dev, "io = 0x%x\n", dev->io);
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v4l2_info(v4l2_dev, "mute frequency = %lu kHz\n", dev->mutefreq >> 4);
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return 0;
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}
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static struct typhoon_device typhoon_unit =
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static int typhoon_open(struct file *file)
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{
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.iobase = CONFIG_RADIO_TYPHOON_PORT,
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.curfreq = CONFIG_RADIO_TYPHOON_MUTEFREQ,
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.mutefreq = CONFIG_RADIO_TYPHOON_MUTEFREQ,
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};
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static int typhoon_exclusive_open(struct file *file)
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{
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return test_and_set_bit(0, &typhoon_unit.in_use) ? -EBUSY : 0;
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return 0;
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}
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static int typhoon_exclusive_release(struct file *file)
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static int typhoon_release(struct file *file)
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{
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clear_bit(0, &typhoon_unit.in_use);
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return 0;
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}
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static const struct v4l2_file_operations typhoon_fops = {
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.owner = THIS_MODULE,
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.open = typhoon_exclusive_open,
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.release = typhoon_exclusive_release,
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.open = typhoon_open,
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.release = typhoon_release,
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.ioctl = video_ioctl2,
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};
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static const struct v4l2_ioctl_ops typhoon_ioctl_ops = {
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.vidioc_log_status = vidioc_log_status,
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.vidioc_querycap = vidioc_querycap,
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.vidioc_g_tuner = vidioc_g_tuner,
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.vidioc_s_tuner = vidioc_s_tuner,
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@ -363,125 +348,72 @@ static const struct v4l2_ioctl_ops typhoon_ioctl_ops = {
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.vidioc_s_ctrl = vidioc_s_ctrl,
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};
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static struct video_device typhoon_radio = {
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.name = "Typhoon Radio",
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.fops = &typhoon_fops,
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.ioctl_ops = &typhoon_ioctl_ops,
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.release = video_device_release_empty,
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};
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#ifdef CONFIG_RADIO_TYPHOON_PROC_FS
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static int typhoon_proc_show(struct seq_file *m, void *v)
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{
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#ifdef MODULE
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#define MODULEPROCSTRING "Driver loaded as a module"
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#else
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#define MODULEPROCSTRING "Driver compiled into kernel"
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#endif
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seq_puts(m, BANNER);
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seq_puts(m, "Load type: " MODULEPROCSTRING "\n\n");
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seq_printf(m, "frequency = %lu kHz\n",
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typhoon_unit.curfreq >> 4);
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seq_printf(m, "volume = %d\n", typhoon_unit.curvol);
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seq_printf(m, "mute = %s\n", typhoon_unit.muted ?
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"on" : "off");
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seq_printf(m, "iobase = 0x%x\n", typhoon_unit.iobase);
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seq_printf(m, "mute frequency = %lu kHz\n",
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typhoon_unit.mutefreq >> 4);
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return 0;
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}
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static int typhoon_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, typhoon_proc_show, NULL);
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}
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static const struct file_operations typhoon_proc_fops = {
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.owner = THIS_MODULE,
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.open = typhoon_proc_open,
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.read = seq_read,
|
||||
.llseek = seq_lseek,
|
||||
.release = single_release,
|
||||
};
|
||||
#endif /* CONFIG_RADIO_TYPHOON_PROC_FS */
|
||||
|
||||
MODULE_AUTHOR("Dr. Henrik Seidel");
|
||||
MODULE_DESCRIPTION("A driver for the Typhoon radio card (a.k.a. EcoRadio).");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
static int io = -1;
|
||||
static int radio_nr = -1;
|
||||
|
||||
module_param(io, int, 0);
|
||||
MODULE_PARM_DESC(io, "I/O address of the Typhoon card (0x316 or 0x336)");
|
||||
module_param(radio_nr, int, 0);
|
||||
|
||||
#ifdef MODULE
|
||||
static unsigned long mutefreq;
|
||||
module_param(mutefreq, ulong, 0);
|
||||
MODULE_PARM_DESC(mutefreq, "Frequency used when muting the card (in kHz)");
|
||||
#endif
|
||||
|
||||
static int __init typhoon_init(void)
|
||||
{
|
||||
#ifdef MODULE
|
||||
if (io == -1) {
|
||||
printk(KERN_ERR "radio-typhoon: You must set an I/O address with io=0x316 or io=0x336\n");
|
||||
struct typhoon *dev = &typhoon_card;
|
||||
struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
|
||||
int res;
|
||||
|
||||
strlcpy(v4l2_dev->name, "typhoon", sizeof(v4l2_dev->name));
|
||||
dev->io = io;
|
||||
dev->curfreq = dev->mutefreq = mutefreq;
|
||||
|
||||
if (dev->io == -1) {
|
||||
v4l2_err(v4l2_dev, "You must set an I/O address with io=0x316 or io=0x336\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
typhoon_unit.iobase = io;
|
||||
|
||||
if (mutefreq < 87000 || mutefreq > 108500) {
|
||||
printk(KERN_ERR "radio-typhoon: You must set a frequency (in kHz) used when muting the card,\n");
|
||||
printk(KERN_ERR "radio-typhoon: e.g. with \"mutefreq=87500\" (87000 <= mutefreq <= 108500)\n");
|
||||
if (dev->mutefreq < 87000 || dev->mutefreq > 108500) {
|
||||
v4l2_err(v4l2_dev, "You must set a frequency (in kHz) used when muting the card,\n");
|
||||
v4l2_err(v4l2_dev, "e.g. with \"mutefreq=87500\" (87000 <= mutefreq <= 108500)\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
typhoon_unit.mutefreq = mutefreq;
|
||||
#endif /* MODULE */
|
||||
|
||||
printk(KERN_INFO BANNER);
|
||||
mutex_init(&typhoon_unit.lock);
|
||||
io = typhoon_unit.iobase;
|
||||
if (!request_region(io, 8, "typhoon")) {
|
||||
printk(KERN_ERR "radio-typhoon: port 0x%x already in use\n",
|
||||
typhoon_unit.iobase);
|
||||
mutex_init(&dev->lock);
|
||||
if (!request_region(dev->io, 8, "typhoon")) {
|
||||
v4l2_err(v4l2_dev, "port 0x%x already in use\n",
|
||||
dev->io);
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
video_set_drvdata(&typhoon_radio, &typhoon_unit);
|
||||
if (video_register_device(&typhoon_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
|
||||
release_region(io, 8);
|
||||
res = v4l2_device_register(NULL, v4l2_dev);
|
||||
if (res < 0) {
|
||||
release_region(dev->io, 8);
|
||||
v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
|
||||
return res;
|
||||
}
|
||||
v4l2_info(v4l2_dev, BANNER);
|
||||
|
||||
strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
|
||||
dev->vdev.v4l2_dev = v4l2_dev;
|
||||
dev->vdev.fops = &typhoon_fops;
|
||||
dev->vdev.ioctl_ops = &typhoon_ioctl_ops;
|
||||
dev->vdev.release = video_device_release_empty;
|
||||
video_set_drvdata(&dev->vdev, dev);
|
||||
if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
|
||||
v4l2_device_unregister(&dev->v4l2_dev);
|
||||
release_region(dev->io, 8);
|
||||
return -EINVAL;
|
||||
}
|
||||
printk(KERN_INFO "radio-typhoon: port 0x%x.\n", typhoon_unit.iobase);
|
||||
printk(KERN_INFO "radio-typhoon: mute frequency is %lu kHz.\n",
|
||||
typhoon_unit.mutefreq);
|
||||
typhoon_unit.mutefreq <<= 4;
|
||||
v4l2_info(v4l2_dev, "port 0x%x.\n", dev->io);
|
||||
v4l2_info(v4l2_dev, "mute frequency is %lu kHz.\n", dev->mutefreq);
|
||||
dev->mutefreq <<= 4;
|
||||
|
||||
/* mute card - prevents noisy bootups */
|
||||
typhoon_mute(&typhoon_unit);
|
||||
|
||||
#ifdef CONFIG_RADIO_TYPHOON_PROC_FS
|
||||
if (!proc_create("driver/radio-typhoon", 0, NULL, &typhoon_proc_fops))
|
||||
printk(KERN_ERR "radio-typhoon: registering /proc/driver/radio-typhoon failed\n");
|
||||
#endif
|
||||
typhoon_mute(dev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __exit typhoon_cleanup_module(void)
|
||||
static void __exit typhoon_exit(void)
|
||||
{
|
||||
struct typhoon *dev = &typhoon_card;
|
||||
|
||||
#ifdef CONFIG_RADIO_TYPHOON_PROC_FS
|
||||
remove_proc_entry("driver/radio-typhoon", NULL);
|
||||
#endif
|
||||
|
||||
video_unregister_device(&typhoon_radio);
|
||||
release_region(io, 8);
|
||||
video_unregister_device(&dev->vdev);
|
||||
v4l2_device_unregister(&dev->v4l2_dev);
|
||||
release_region(dev->io, 8);
|
||||
}
|
||||
|
||||
module_init(typhoon_init);
|
||||
module_exit(typhoon_cleanup_module);
|
||||
module_exit(typhoon_exit);
|
||||
|
||||
|
|
|
|||
Reference in New Issue