patch-2.4.6 linux/drivers/media/radio/radio-miropcm20.c

• Lines: 291
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.5/linux/drivers/media/radio/radio-miropcm20.c
• Orig date: Sat May 19 17:43:06 2001

diff -u --recursive --new-file v2.4.5/linux/drivers/media/radio/radio-miropcm20.c linux/drivers/media/radio/radio-miropcm20.c
@@ -1,290 +0,0 @@
-/* Miro PCM20 radio driver for Linux radio support
- * (c) 1998 Ruurd Reitsma <R.A.Reitsma@wbmt.tudelft.nl>
- * Thanks to Norberto Pellici for the ACI device interface specification
- * The API part is based on the radiotrack driver by M. Kirkwood
- * This driver relies on the aci mixer (drivers/sound/aci.c)
- * Look there for further info...
- */
-
-/* Revision history:
- *
- *   1998        Ruurd Reitsma <R.A.Reitsma@wbmt.tudelft.nl>
- *   2000-09-05  Robert Siemer <Robert.Siemer@gmx.de>
- *        removed unfinished volume control (maybe adding it later again)
- *        use OSS-mixer; added stereo control
- */
-
-/* What ever you think about the ACI, version 0x07 is not very well!
- * I cant get frequency, 'tuner status', 'tuner flags' or mute/mono
- * conditions...                Robert 
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/videodev.h>
-#include <linux/devfs_fs_kernel.h>
-#include <asm/uaccess.h>
-
-char * aci_radio_name;
-
-#include "../../sound/aci.h"
-
-static int users = 0;
-static int radio_nr = -1;
-MODULE_PARM(radio_nr, "i");
-
-struct pcm20_device
-{
-	unsigned long freq;
-	int muted;
-	int stereo;
-};
-
-
-static int pcm20_mute(struct pcm20_device *dev, unsigned char mute)
-{
-	dev->muted = mute;
-	return aci_write_cmd(0xa3, mute);
-}
-
-static int pcm20_stereo(struct pcm20_device *dev, unsigned char stereo)
-{
-	dev->stereo = stereo;
-	return aci_write_cmd(0xa4, !stereo);
-}
-
-static int pcm20_setfreq(struct pcm20_device *dev, unsigned long freq)
-{
-	unsigned char freql;
-	unsigned char freqh;
-
-	dev->freq=freq;
-
-	freq /= 160;
-	if (!(aci_version==0x07 || aci_version>=0xb0))
-		freq /= 10;  /* I don't know exactly which version
-			      * needs this hack */
-	freql = freq & 0xff;
-	freqh = freq >> 8;
-
-	aci_rds_cmd(RDS_RESET, 0, 0);
-	pcm20_stereo(dev, 1);
-
-	return aci_rw_cmd(0xa7, freql, freqh);	/*  Tune to frequency	*/
-}
-
-static int pcm20_getflags(struct pcm20_device *dev, __u32 *flags, __u16 *signal)
-{
-	/* okay, check for signal, stereo and rds here... */
-	int i;
-	unsigned char buf;
-
-	if ((i=aci_rw_cmd(0xa9, -1, -1))<0)
-		return i;
-#if DEBUG
-	printk("check_sig: 0x%x\n", i);
-#endif
-	if (i & 0x80) {
-		/* no signal from tuner */
-		*flags=0;
-		*signal=0;
-		return 0;
-	} else
-		*signal=0xffff;
-
-	if ((i=aci_rw_cmd(0xa8, -1, -1))<0)
-		return i;
-	if (i & 0x40) {
-		*flags=0;
-	} else {
-		/* stereo */
-		*flags=VIDEO_TUNER_STEREO_ON;
-		/* I cant see stereo, when forced to mono */
-		dev->stereo=1;
-	}
-
-	if ((i=aci_rds_cmd(RDS_STATUS, &buf, 1))<0)
-		return i;
-	if (buf & 1)
-		/* RDS available */
-		*flags|=VIDEO_TUNER_RDS_ON;
-	else
-		return 0;
-
-	if ((i=aci_rds_cmd(RDS_RXVALUE, &buf, 1))<0)
-		return i;
-#if DEBUG
-	printk("rds-signal: %d\n", buf);
-#endif
-	if (buf > 15) {
-		printk("rds-miropcm20: RX strengths unexpected high...\n");
-		buf=15;
-	}
-	/* refine signal */
-	if ((*signal=SCALE(15, 0xffff, buf))==0)
-		*signal = 1;
-
-	return 0;
-}
-
-static int pcm20_ioctl(struct video_device *dev, unsigned int cmd, void *arg)
-{
-	struct pcm20_device *pcm20=dev->priv;
-	int i;
-	
-	switch(cmd)
-	{
-		case VIDIOCGCAP:
-		{
-			struct video_capability v;
-			v.type=VID_TYPE_TUNER;
-			strcpy(v.name, "Miro PCM20");
-			v.channels=1;
-			v.audios=1;
-			/* No we don't do pictures */
-			v.maxwidth=0;
-			v.maxheight=0;
-			v.minwidth=0;
-			v.minheight=0;
-			if(copy_to_user(arg,&v,sizeof(v)))
-				return -EFAULT;
-			return 0;
-		}
-		case VIDIOCGTUNER:
-		{
-			struct video_tuner v;
-			if(copy_from_user(&v, arg,sizeof(v))!=0) 
-				return -EFAULT;
-			if(v.tuner)	/* Only 1 tuner */ 
-				return -EINVAL;
-			v.rangelow=87*16000;
-			v.rangehigh=108*16000;
-			pcm20_getflags(pcm20, &v.flags, &v.signal);
-			v.flags|=VIDEO_TUNER_LOW;
-			v.mode=VIDEO_MODE_AUTO;
-			strcpy(v.name, "FM");
-			if(copy_to_user(arg,&v, sizeof(v)))
-				return -EFAULT;
-			return 0;
-		}
-		case VIDIOCSTUNER:
-		{
-			struct video_tuner v;
-			if(copy_from_user(&v, arg, sizeof(v)))
-				return -EFAULT;
-			if(v.tuner!=0)
-				return -EINVAL;
-			/* Only 1 tuner so no setting needed ! */
-			return 0;
-		}
-		case VIDIOCGFREQ:
-			if(copy_to_user(arg, &pcm20->freq, sizeof(pcm20->freq)))
-				return -EFAULT;
-			return 0;
-		case VIDIOCSFREQ:
-			if(copy_from_user(&pcm20->freq, arg, sizeof(pcm20->freq)))
-				return -EFAULT;
-			i=pcm20_setfreq(pcm20, pcm20->freq);
-#if DEBUG
-			printk("First view (setfreq): 0x%x\n", i);
-#endif
-			return i;
-		case VIDIOCGAUDIO:
-		{	
-			struct video_audio v;
-			memset(&v,0, sizeof(v));
-			v.flags=VIDEO_AUDIO_MUTABLE;
-			if (pcm20->muted)
-				v.flags|=VIDEO_AUDIO_MUTE;
-			v.mode=VIDEO_SOUND_STEREO;
-			if (pcm20->stereo)
-				v.mode|=VIDEO_SOUND_MONO;
-			/* v.step=2048; */
-			strcpy(v.name, "Radio");
-			if(copy_to_user(arg,&v, sizeof(v)))
-				return -EFAULT;
-			return 0;			
-		}
-		case VIDIOCSAUDIO:
-		{
-			struct video_audio v;
-			if(copy_from_user(&v, arg, sizeof(v))) 
-				return -EFAULT;
-			if(v.audio) 
-				return -EINVAL;
-
-			pcm20_mute(pcm20, !!(v.flags&VIDEO_AUDIO_MUTE));
-			if(v.flags&VIDEO_SOUND_MONO)
-				pcm20_stereo(pcm20, 0);
-			if(v.flags&VIDEO_SOUND_STEREO)
-				pcm20_stereo(pcm20, 1);
-
-			return 0;
-		}
-		default:
-			return -ENOIOCTLCMD;
-	}
-}
-
-static int pcm20_open(struct video_device *dev, int flags)
-{
-	if(users)
-		return -EBUSY;
-	users++;
-	return 0;
-}
-
-static void pcm20_close(struct video_device *dev)
-{
-	users--;
-}
-
-static struct pcm20_device pcm20_unit=
-{
-	freq:   87*16000,
-	muted:  1,
-	stereo: 0
-};
-
-static struct video_device pcm20_radio=
-{
-	owner:		THIS_MODULE,
-	name:		"Miro PCM 20 radio",
-	type:		VID_TYPE_TUNER,
-	hardware:	VID_HARDWARE_RTRACK,
-	open:		pcm20_open,
-	close:		pcm20_close,
-	ioctl:		pcm20_ioctl,
-	priv:		&pcm20_unit
-};
-
-static int __init pcm20_init(void)
-{
-	if(video_register_device(&pcm20_radio, VFL_TYPE_RADIO, radio_nr)==-1)
-		return -EINVAL;
-		
-	if(attach_aci_rds()<0) {
-		video_unregister_device(&pcm20_radio);
-		return -EINVAL;
-	}
-#if DEBUG
-	printk("v4l-name: %s\n", devfs_get_name(pcm20_radio.devfs_handle, 0));
-#endif
-	printk(KERN_INFO "Miro PCM20 radio card driver.\n");
-
-	return 0;
-}
-
-MODULE_AUTHOR("Ruurd Reitsma");
-MODULE_DESCRIPTION("A driver for the Miro PCM20 radio card.");
-
-EXPORT_NO_SYMBOLS;
-
-static void __exit pcm20_cleanup(void)
-{
-	unload_aci_rds();
-	video_unregister_device(&pcm20_radio);
-}
-
-module_init(pcm20_init);
-module_exit(pcm20_cleanup);