2005-04-16 22:20:36 +00:00
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/* RadioTrack II driver for Linux radio support (C) 1998 Ben Pfaff
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2006-04-08 19:06:16 +00:00
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*
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2005-04-16 22:20:36 +00:00
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* Based on RadioTrack I/RadioReveal (C) 1997 M. Kirkwood
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* Converted to new API by Alan Cox <Alan.Cox@linux.org>
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* Various bugfixes and enhancements by Russell Kroll <rkroll@exploits.org>
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*
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* TODO: Allow for more than one of these foolish entities :-)
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*
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2006-08-08 12:10:02 +00:00
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* Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
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2005-04-16 22:20:36 +00:00
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*/
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#include <linux/module.h> /* Modules */
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#include <linux/init.h> /* Initdata */
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2005-09-13 08:25:15 +00:00
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#include <linux/ioport.h> /* request_region */
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2005-04-16 22:20:36 +00:00
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#include <linux/delay.h> /* udelay */
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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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2006-08-08 12:10:02 +00:00
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#include <linux/videodev2.h> /* kernel radio structs */
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2006-06-05 13:26:32 +00:00
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#include <media/v4l2-common.h>
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2008-07-20 11:12:02 +00:00
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#include <media/v4l2-ioctl.h>
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2005-04-16 22:20:36 +00:00
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#include <linux/spinlock.h>
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2006-08-08 12:10:02 +00:00
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#include <linux/version.h> /* for KERNEL_VERSION MACRO */
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#define RADIO_VERSION KERNEL_VERSION(0,0,2)
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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 = 65535,
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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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2005-04-16 22:20:36 +00:00
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#ifndef CONFIG_RADIO_RTRACK2_PORT
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#define CONFIG_RADIO_RTRACK2_PORT -1
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#endif
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2006-04-08 19:06:16 +00:00
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static int io = CONFIG_RADIO_RTRACK2_PORT;
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2005-04-16 22:20:36 +00:00
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static int radio_nr = -1;
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static spinlock_t lock;
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struct rt_device
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{
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2008-08-23 07:49:13 +00:00
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unsigned long in_use;
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2005-04-16 22:20:36 +00:00
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int port;
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unsigned long curfreq;
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int muted;
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};
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/* local things */
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static void rt_mute(struct rt_device *dev)
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{
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2006-04-08 19:06:16 +00:00
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if(dev->muted)
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2005-04-16 22:20:36 +00:00
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return;
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spin_lock(&lock);
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outb(1, io);
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spin_unlock(&lock);
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dev->muted = 1;
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}
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static void rt_unmute(struct rt_device *dev)
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{
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if(dev->muted == 0)
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return;
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spin_lock(&lock);
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outb(0, io);
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spin_unlock(&lock);
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dev->muted = 0;
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}
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static void zero(void)
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{
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2006-04-08 19:06:16 +00:00
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outb_p(1, io);
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2005-04-16 22:20:36 +00:00
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outb_p(3, io);
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outb_p(1, io);
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}
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static void one(void)
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{
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2006-04-08 19:06:16 +00:00
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outb_p(5, io);
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2005-04-16 22:20:36 +00:00
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outb_p(7, io);
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outb_p(5, io);
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}
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static int rt_setfreq(struct rt_device *dev, unsigned long freq)
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{
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int i;
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freq = freq / 200 + 856;
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2006-04-08 19:06:16 +00:00
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2005-04-16 22:20:36 +00:00
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spin_lock(&lock);
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outb_p(0xc8, io);
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outb_p(0xc9, io);
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outb_p(0xc9, io);
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for (i = 0; i < 10; i++)
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zero ();
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for (i = 14; i >= 0; i--)
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if (freq & (1 << i))
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one ();
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else
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zero ();
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outb_p(0xc8, io);
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if (!dev->muted)
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outb_p(0, io);
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2006-04-08 19:06:16 +00:00
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2005-04-16 22:20:36 +00:00
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spin_unlock(&lock);
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return 0;
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}
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2007-04-19 19:42:25 +00:00
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static int vidioc_querycap(struct file *file, void *priv,
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struct v4l2_capability *v)
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{
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strlcpy(v->driver, "radio-rtrack2", sizeof(v->driver));
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strlcpy(v->card, "RadioTrack II", 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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return 0;
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}
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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 0;
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}
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2005-04-16 22:20:36 +00:00
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static int rt_getsigstr(struct rt_device *dev)
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{
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if (inb(io) & 2) /* bit set = no signal present */
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return 0;
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return 1; /* signal present */
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}
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2007-04-19 19:42:25 +00:00
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static int vidioc_g_tuner(struct file *file, void *priv,
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struct v4l2_tuner *v)
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2005-04-16 22:20:36 +00:00
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{
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struct video_device *dev = video_devdata(file);
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2007-04-19 19:42:25 +00:00
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struct rt_device *rt = dev->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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v->type = V4L2_TUNER_RADIO;
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v->rangelow = (88*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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v->signal = 0xFFFF*rt_getsigstr(rt);
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return 0;
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}
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2006-08-08 12:10:02 +00:00
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2007-04-19 19:42:25 +00:00
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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 video_device *dev = video_devdata(file);
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struct rt_device *rt = dev->priv;
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2006-08-08 12:10:02 +00:00
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2007-04-19 19:42:25 +00:00
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rt->curfreq = f->frequency;
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rt_setfreq(rt, rt->curfreq);
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return 0;
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}
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2006-08-08 12:10:02 +00:00
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2007-04-19 19:42:25 +00:00
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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 video_device *dev = video_devdata(file);
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struct rt_device *rt = dev->priv;
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2006-08-08 12:10:02 +00:00
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2007-04-19 19:42:25 +00:00
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f->type = V4L2_TUNER_RADIO;
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f->frequency = rt->curfreq;
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return 0;
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}
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2006-08-08 12:10:02 +00:00
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2007-04-19 19:42:25 +00:00
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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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2006-08-08 12:10:02 +00:00
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2007-04-19 19:42:25 +00:00
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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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2005-04-16 22:20:36 +00:00
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return 0;
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}
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2007-04-19 19:42:25 +00:00
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}
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return -EINVAL;
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}
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2006-08-08 12:10:02 +00:00
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2007-04-19 19:42:25 +00:00
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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 video_device *dev = video_devdata(file);
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struct rt_device *rt = dev->priv;
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2006-08-08 12:10:02 +00:00
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2007-04-19 19:42:25 +00:00
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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ctrl->value = rt->muted;
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return 0;
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case V4L2_CID_AUDIO_VOLUME:
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if (rt->muted)
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ctrl->value = 0;
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else
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ctrl->value = 65535;
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return 0;
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2005-04-16 22:20:36 +00:00
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}
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2007-04-19 19:42:25 +00:00
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return -EINVAL;
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2005-04-16 22:20:36 +00:00
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}
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2007-04-19 19:42:25 +00:00
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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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2005-04-16 22:20:36 +00:00
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{
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2007-04-19 19:42:25 +00:00
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struct video_device *dev = video_devdata(file);
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struct rt_device *rt = dev->priv;
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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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rt_mute(rt);
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else
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rt_unmute(rt);
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return 0;
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case V4L2_CID_AUDIO_VOLUME:
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if (ctrl->value)
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rt_unmute(rt);
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else
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rt_mute(rt);
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return 0;
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}
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return -EINVAL;
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2005-04-16 22:20:36 +00:00
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}
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2007-04-20 09:37:36 +00:00
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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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return 0;
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}
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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 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 0;
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}
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2005-04-16 22:20:36 +00:00
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static struct rt_device rtrack2_unit;
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2008-08-23 07:49:13 +00:00
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static int rtrack2_exclusive_open(struct inode *inode, struct file *file)
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{
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return test_and_set_bit(0, &rtrack2_unit.in_use) ? -EBUSY : 0;
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}
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static int rtrack2_exclusive_release(struct inode *inode, struct file *file)
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{
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clear_bit(0, &rtrack2_unit.in_use);
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return 0;
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}
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2007-02-12 08:55:33 +00:00
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static const struct file_operations rtrack2_fops = {
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2005-04-16 22:20:36 +00:00
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.owner = THIS_MODULE,
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2008-08-23 07:49:13 +00:00
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.open = rtrack2_exclusive_open,
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.release = rtrack2_exclusive_release,
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2007-04-19 19:42:25 +00:00
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.ioctl = video_ioctl2,
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2008-04-22 17:46:11 +00:00
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#ifdef CONFIG_COMPAT
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2006-01-09 17:24:57 +00:00
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.compat_ioctl = v4l_compat_ioctl32,
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2008-04-22 17:46:11 +00:00
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#endif
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2005-04-16 22:20:36 +00:00
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.llseek = no_llseek,
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};
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2008-07-21 05:57:38 +00:00
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static const struct v4l2_ioctl_ops rtrack2_ioctl_ops = {
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2007-04-19 19:42:25 +00:00
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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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.vidioc_g_frequency = vidioc_g_frequency,
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.vidioc_s_frequency = vidioc_s_frequency,
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.vidioc_queryctrl = vidioc_queryctrl,
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.vidioc_g_ctrl = vidioc_g_ctrl,
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.vidioc_s_ctrl = vidioc_s_ctrl,
|
2007-04-20 09:37:36 +00:00
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.vidioc_g_audio = vidioc_g_audio,
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.vidioc_s_audio = vidioc_s_audio,
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.vidioc_g_input = vidioc_g_input,
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.vidioc_s_input = vidioc_s_input,
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2005-04-16 22:20:36 +00:00
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};
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|
2008-07-21 05:57:38 +00:00
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static struct video_device rtrack2_radio = {
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.name = "RadioTrack II radio",
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.fops = &rtrack2_fops,
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.ioctl_ops = &rtrack2_ioctl_ops,
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2008-08-23 09:23:55 +00:00
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|
.release = video_device_release_empty,
|
2008-07-21 05:57:38 +00:00
|
|
|
};
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
static int __init rtrack2_init(void)
|
|
|
|
{
|
|
|
|
if(io==-1)
|
|
|
|
{
|
|
|
|
printk(KERN_ERR "You must set an I/O address with io=0x20c or io=0x30c\n");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
2006-04-08 19:06:16 +00:00
|
|
|
if (!request_region(io, 4, "rtrack2"))
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
|
|
|
printk(KERN_ERR "rtrack2: port 0x%x already in use\n", io);
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
rtrack2_radio.priv=&rtrack2_unit;
|
|
|
|
|
2006-04-08 19:06:16 +00:00
|
|
|
spin_lock_init(&lock);
|
2008-09-03 20:11:58 +00:00
|
|
|
if (video_register_device(&rtrack2_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
|
2005-04-16 22:20:36 +00:00
|
|
|
release_region(io, 4);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
2006-04-08 19:06:16 +00:00
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
printk(KERN_INFO "AIMSlab Radiotrack II card driver.\n");
|
|
|
|
|
2006-04-08 19:06:16 +00:00
|
|
|
/* mute card - prevents noisy bootups */
|
2005-04-16 22:20:36 +00:00
|
|
|
outb(1, io);
|
|
|
|
rtrack2_unit.muted = 1;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
MODULE_AUTHOR("Ben Pfaff");
|
|
|
|
MODULE_DESCRIPTION("A driver for the RadioTrack II radio card.");
|
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
|
|
|
|
module_param(io, int, 0);
|
|
|
|
MODULE_PARM_DESC(io, "I/O address of the RadioTrack card (0x20c or 0x30c)");
|
|
|
|
module_param(radio_nr, int, 0);
|
|
|
|
|
|
|
|
static void __exit rtrack2_cleanup_module(void)
|
|
|
|
{
|
|
|
|
video_unregister_device(&rtrack2_radio);
|
|
|
|
release_region(io,4);
|
|
|
|
}
|
|
|
|
|
|
|
|
module_init(rtrack2_init);
|
|
|
|
module_exit(rtrack2_cleanup_module);
|
|
|
|
|
|
|
|
/*
|
|
|
|
Local variables:
|
|
|
|
compile-command: "mmake"
|
|
|
|
End:
|
|
|
|
*/
|