patch-2.4.0-test7 linux/drivers/char/radio-miropcm20.c

• Lines: 240
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.0-test6/linux/drivers/char/radio-miropcm20.c
• Orig date: Fri Mar 10 16:40:42 2000

diff -u --recursive --new-file v2.4.0-test6/linux/drivers/char/radio-miropcm20.c linux/drivers/char/radio-miropcm20.c
@@ -1,239 +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/lowlevel/aci.c)
- * Look there for further info...
- */
-
-#include <linux/module.h>		/* Modules 			*/
-#include <linux/init.h>			/* Initdata			*/
-#include <asm/uaccess.h>		/* copy to/from user		*/
-#include <linux/videodev.h>		/* kernel radio structs		*/
-#include "../sound/miroaci.h"		/* ACI Control by acimixer      */
-
-static int users = 0;
-
-struct pcm20_device
-{
-	int port;
-	int curvol;
-	unsigned long curfreq;
-	int muted;
-};
-
-
-/* local things */
-
-
-static void pcm20_mute(struct pcm20_device *dev)
-{
-
-	dev->muted = 1;
-	aci_write_cmd(0xa3,0x01);			
-
-}
-
-static int pcm20_setvol(struct pcm20_device *dev, int vol)
-{
-
-	if(vol == dev->curvol) {	/* requested volume = current */
-		if (dev->muted) {	/* user is unmuting the card  */
-			dev->muted = 0;
-			aci_write_cmd(0xa3,0x00); 	/* enable card */
-		}	
-	
-		return 0;
-	}
-
-	if(vol == 0) {			/* volume = 0 means mute the card */
-		aci_write_cmd(0x3d, 0x20);
-		aci_write_cmd(0x35, 0x20);
-		return 0;
-	}
-
-	dev->muted = 0;
-	aci_write_cmd(0x3d, 32-vol); 	/* Right Channel */
-	aci_write_cmd(0x35, 32-vol);	/* Left Channel */
-	dev->curvol = vol;
-
-	return 0;
-}
-
-static int pcm20_setfreq(struct pcm20_device *dev, unsigned long freq)
-{
-	unsigned char freql;
-	unsigned char freqh;
-
-	freq = (freq * 10) / 16;
-	freql = freq & 0xff;
-	freqh = freq >> 8;	
-
-
-	aci_write_cmd_d(0xa7, freql, freqh);	/*  Tune to frequency	*/
-
-	return 0;
-}
-
-int pcm20_getsigstr(struct pcm20_device *dev)
-{
-	unsigned char buf;
-	aci_indexed_cmd(0xf0, 0x32, &buf);
-	if ((buf & 0x80) == 0x80)	
-		return 0;
-	return 1;		/* signal present		*/
-}
-
-static int pcm20_ioctl(struct video_device *dev, unsigned int cmd, void *arg)
-{
-	struct pcm20_device *pcm20=dev->priv;
-	
-	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=(int)(87.5*16);
-			v.rangehigh=(int)(108.0*16);
-			v.flags=0;
-			v.mode=VIDEO_MODE_AUTO;
-			v.signal=0xFFFF*pcm20_getsigstr(pcm20);
-			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->curfreq, sizeof(pcm20->curfreq)))
-				return -EFAULT;
-			return 0;
-		case VIDIOCSFREQ:
-			if(copy_from_user(&pcm20->curfreq, arg,sizeof(pcm20->curfreq)))
-				return -EFAULT;
-			pcm20_setfreq(pcm20, pcm20->curfreq);
-			return 0;
-		case VIDIOCGAUDIO:
-		{	
-			struct video_audio v;
-			memset(&v,0, sizeof(v));
-			v.flags|=VIDEO_AUDIO_MUTABLE|VIDEO_AUDIO_VOLUME;
-			v.volume=pcm20->curvol * 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;
-
-			if(v.flags&VIDEO_AUDIO_MUTE) 
-				pcm20_mute(pcm20);
-			else
-				pcm20_setvol(pcm20,v.volume/2048);	
-
-			return 0;
-		}
-		default:
-			return -ENOIOCTLCMD;
-	}
-}
-
-static int pcm20_open(struct video_device *dev, int flags)
-{
-	if(users)
-		return -EBUSY;
-	users++;
-	MOD_INC_USE_COUNT;
-	return 0;
-}
-
-static void pcm20_close(struct video_device *dev)
-{
-	users--;
-	MOD_DEC_USE_COUNT;
-}
-
-static struct pcm20_device pcm20_unit;
-
-static struct video_device pcm20_radio=
-{
-	"Miro PCM 20 radio",
-	VID_TYPE_TUNER,
-	VID_HARDWARE_RTRACK,
-	pcm20_open,
-	pcm20_close,
-	NULL,	/* Can't read  (no capture ability) */
-	NULL,	/* Can't write */
-	NULL,	/* Can't poll */
-	pcm20_ioctl,
-	NULL,
-	NULL
-};
-
-static int __init pcm20_init(void)
-{
-
-	pcm20_radio.priv=&pcm20_unit;
-	
-	if(video_register_device(&pcm20_radio, VFL_TYPE_RADIO)==-1)
-		return -EINVAL;
-		
-	printk(KERN_INFO "Miro PCM20 radio card driver.\n");
-
- 	/* mute card - prevents noisy bootups */
-
-	/* this ensures that the volume is all the way down  */
-
-	pcm20_unit.curvol = 0;
-
-	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)
-{
-	video_unregister_device(&pcm20_radio);
-}
-
-module_init(pcm20_init);
-module_exit(pcm20_cleanup);
-