Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

20 files changed, 6163 insertions, 0 deletions

diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig
new file mode 100644
index 00000000000..d318be383de
--- /dev/null
+++ b/drivers/media/radio/Kconfig
@@ -0,0 +1,354 @@
+#
+# Multimedia Video device configuration
+#
+
+menu "Radio Adapters"
+	depends on VIDEO_DEV!=n
+
+config RADIO_CADET
+	tristate "ADS Cadet AM/FM Tuner"
+	depends on ISA && VIDEO_DEV
+	---help---
+	  Choose Y here if you have one of these AM/FM radio cards, and then
+	  fill in the port address below.
+
+	  In order to control your radio card, you will need to use programs
+	  that are compatible with the Video For Linux API.  Information on
+	  this API and pointers to "v4l" programs may be found at
+	  <file:Documentation/video4linux/API.html>.
+
+	  Further documentation on this driver can be found on the WWW at
+	  <http://linux.blackhawke.net/cadet/>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-cadet.
+
+config RADIO_RTRACK
+	tristate "AIMSlab RadioTrack (aka RadioReveal) support"
+	depends on ISA && VIDEO_DEV
+	---help---
+	  Choose Y here if you have one of these FM radio cards, and then fill
+	  in the port address below.
+
+	  Note that newer AIMSlab RadioTrack cards have a different chipset
+	  and are not supported by this driver.  For these cards, use the
+	  RadioTrack II driver below.
+
+	  If you have a GemTeks combined (PnP) sound- and radio card you must
+	  use this driver as a module and setup the card with isapnptools.
+	  You must also pass the module a suitable io parameter, 0x248 has
+	  been reported to be used by these cards.
+
+	  In order to control your radio card, you will need to use programs
+	  that are compatible with the Video For Linux API.  Information on
+	  this API and pointers to "v4l" programs may be found at
+	  <file:Documentation/video4linux/API.html>. More information is
+	  contained in the file
+	  <file:Documentation/video4linux/radiotrack.txt>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-aimslab.
+
+config RADIO_RTRACK_PORT
+	hex "RadioTrack i/o port (0x20f or 0x30f)"
+	depends on RADIO_RTRACK=y
+	default "20f"
+	help
+	  Enter either 0x30f or 0x20f here.  The card default is 0x30f, if you
+	  haven't changed the jumper setting on the card.
+
+config RADIO_RTRACK2
+	tristate "AIMSlab RadioTrack II support"
+	depends on ISA && VIDEO_DEV
+	---help---
+	  Choose Y here if you have this FM radio card, and then fill in the
+	  port address below.
+
+	  In order to control your radio card, you will need to use programs
+	  that are compatible with the Video For Linux API.  Information on
+	  this API and pointers to "v4l" programs may be found at
+	  <file:Documentation/video4linux/API.html>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-rtrack2.
+
+config RADIO_RTRACK2_PORT
+	hex "RadioTrack II i/o port (0x20c or 0x30c)"
+	depends on RADIO_RTRACK2=y
+	default "30c"
+	help
+	  Enter either 0x30c or 0x20c here.  The card default is 0x30c, if you
+	  haven't changed the jumper setting on the card.
+
+config RADIO_AZTECH
+	tristate "Aztech/Packard Bell Radio"
+	depends on ISA && VIDEO_DEV
+	---help---
+	  Choose Y here if you have one of these FM radio cards, and then fill
+	  in the port address below.
+
+	  In order to control your radio card, you will need to use programs
+	  that are compatible with the Video For Linux API.  Information on
+	  this API and pointers to "v4l" programs may be found at
+	  <file:Documentation/video4linux/API.html>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-aztech.
+
+config RADIO_AZTECH_PORT
+	hex "Aztech/Packard Bell I/O port (0x350 or 0x358)"
+	depends on RADIO_AZTECH=y
+	default "350"
+	help
+	  Enter either 0x350 or 0x358 here.  The card default is 0x350, if you
+	  haven't changed the setting of jumper JP3 on the card.  Removing the
+	  jumper sets the card to 0x358.
+
+config RADIO_GEMTEK
+	tristate "GemTek Radio Card support"
+	depends on ISA && VIDEO_DEV
+	---help---
+	  Choose Y here if you have this FM radio card, and then fill in the
+	  port address below.
+
+	  In order to control your radio card, you will need to use programs
+	  that are compatible with the Video For Linux API.  Information on
+	  this API and pointers to "v4l" programs may be found at
+	  <file:Documentation/video4linux/API.html>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-gemtek.
+
+config RADIO_GEMTEK_PORT
+	hex "GemTek i/o port (0x20c, 0x30c, 0x24c or 0x34c)"
+	depends on RADIO_GEMTEK=y
+	default "34c"
+	help
+	  Enter either 0x20c, 0x30c, 0x24c or 0x34c here. The card default is
+	  0x34c, if you haven't changed the jumper setting on the card. On
+	  Sound Vision 16 Gold PnP with FM Radio (ESS1869+FM Gemtek), the I/O
+	  port is 0x28c.
+
+config RADIO_GEMTEK_PCI
+	tristate "GemTek PCI Radio Card support"
+	depends on VIDEO_DEV && PCI
+	---help---
+	  Choose Y here if you have this PCI FM radio card.
+
+	  In order to control your radio card, you will need to use programs
+	  that are compatible with the Video for Linux API.  Information on 
+	  this API and pointers to "v4l" programs may be found at
+	  <file:Documentation/video4linux/API.html>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-gemtek-pci.
+
+config RADIO_MAXIRADIO
+	tristate "Guillemot MAXI Radio FM 2000 radio"
+	depends on VIDEO_DEV && PCI
+	---help---
+	  Choose Y here if you have this radio card.  This card may also be
+	  found as Gemtek PCI FM.
+
+	  In order to control your radio card, you will need to use programs
+	  that are compatible with the Video For Linux API.  Information on
+	  this API and pointers to "v4l" programs may be found at
+	  <file:Documentation/video4linux/API.html>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-maxiradio.
+
+config RADIO_MAESTRO
+	tristate "Maestro on board radio"
+	depends on VIDEO_DEV
+	---help---
+	  Say Y here to directly support the on-board radio tuner on the
+	  Maestro 2 or 2E sound card.
+
+	  In order to control your radio card, you will need to use programs
+	  that are compatible with the Video For Linux API.  Information on
+	  this API and pointers to "v4l" programs may be found at
+	  <file:Documentation/video4linux/API.html>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-maestro.
+
+config RADIO_MIROPCM20
+	tristate "miroSOUND PCM20 radio"
+	depends on ISA && VIDEO_DEV && SOUND_ACI_MIXER
+	---help---
+	  Choose Y here if you have this FM radio card. You also need to say Y
+	  to "ACI mixer (miroSOUND PCM1-pro/PCM12/PCM20 radio)" (in "Sound")
+	  for this to work.
+
+	  In order to control your radio card, you will need to use programs
+	  that are compatible with the Video For Linux API.  Information on
+	  this API and pointers to "v4l" programs may be found at
+	  <file:Documentation/video4linux/API.html>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called miropcm20.
+
+config RADIO_MIROPCM20_RDS
+	tristate "miroSOUND PCM20 radio RDS user interface (EXPERIMENTAL)"
+	depends on RADIO_MIROPCM20 && EXPERIMENTAL
+	---help---
+	  Choose Y here if you want to see RDS/RBDS information like
+	  RadioText, Programme Service name, Clock Time and date, Programme
+	  TYpe and Traffic Announcement/Programme identification.  You also
+	  need to say Y to "miroSOUND PCM20 radio" and devfs!
+
+	  It's not possible to read the raw RDS packets from the device, so
+	  the driver cant provide an V4L interface for this.  But the
+	  availability of RDS is reported over V4L by the basic driver
+	  already.  Here RDS can be read from files in /dev/v4l/rds.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called miropcm20-rds.
+
+config RADIO_SF16FMI
+	tristate "SF16FMI Radio"
+	depends on ISA && VIDEO_DEV
+	---help---
+	  Choose Y here if you have one of these FM radio cards.  If you
+	  compile the driver into the kernel and your card is not PnP one, you
+	  have to add "sf16fm=<io>" to the kernel command line (I/O address is
+	  0x284 or 0x384).
+
+	  In order to control your radio card, you will need to use programs
+	  that are compatible with the Video For Linux API.  Information on
+	  this API and pointers to "v4l" programs may be found at
+	  <file:Documentation/video4linux/API.html>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-sf16fmi.
+
+config RADIO_SF16FMR2
+	tristate "SF16FMR2 Radio"
+	depends on ISA && VIDEO_DEV
+	---help---
+	  Choose Y here if you have one of these FM radio cards.
+
+	  In order to control your radio card, you will need to use programs
+	  that are compatible with the Video For Linux API.  Information on
+	  this API and pointers to "v4l" programs may be found on the WWW at
+	  <http://roadrunner.swansea.uk.linux.org/v4l.shtml>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-sf16fmr2.
+
+config RADIO_TERRATEC
+	tristate "TerraTec ActiveRadio ISA Standalone"
+	depends on ISA && VIDEO_DEV
+	---help---
+	  Choose Y here if you have this FM radio card, and then fill in the
+	  port address below. (TODO)
+
+	  Note: This driver is in its early stages.  Right now volume and
+	  frequency control and muting works at least for me, but
+	  unfortunately I have not found anybody who wants to use this card
+	  with Linux.  So if it is this what YOU are trying to do right now,
+	  PLEASE DROP ME A NOTE!!  Rolf Offermanns <rolf@offermanns.de>.
+
+	  In order to control your radio card, you will need to use programs
+	  that are compatible with the Video For Linux API.  Information on
+	  this API and pointers to "v4l" programs may be found at
+	  <file:Documentation/video4linux/API.html>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-terratec.
+
+config RADIO_TERRATEC_PORT
+	hex "Terratec i/o port (normally 0x590)"
+	depends on RADIO_TERRATEC=y
+	default "590"
+	help
+	  Fill in the I/O port of your TerraTec FM radio card. If unsure, go
+	  with the default.
+
+config RADIO_TRUST
+	tristate "Trust FM radio card"
+	depends on ISA && VIDEO_DEV
+	help
+	  This is a driver for the Trust FM radio cards. Say Y if you have
+	  such a card and want to use it under Linux.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-trust.
+
+config RADIO_TRUST_PORT
+	hex "Trust i/o port (usually 0x350 or 0x358)"
+	depends on RADIO_TRUST=y
+	default "350"
+	help
+	  Enter the I/O port of your Trust FM radio card. If unsure, try the
+	  values "0x350" or "0x358".
+
+config RADIO_TYPHOON
+	tristate "Typhoon Radio (a.k.a. EcoRadio)"
+	depends on ISA && VIDEO_DEV
+	---help---
+	  Choose Y here if you have one of these FM radio cards, and then fill
+	  in the port address and the frequency used for muting below.
+
+	  In order to control your radio card, you will need to use programs
+	  that are compatible with the Video For Linux API.  Information on
+	  this API and pointers to "v4l" programs may be found at
+	  <file:Documentation/video4linux/API.html>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-typhoon.
+
+config RADIO_TYPHOON_PROC_FS
+	bool "Support for /proc/radio-typhoon"
+	depends on PROC_FS && RADIO_TYPHOON
+	help
+	  Say Y here if you want the typhoon radio card driver to write
+	  status information (frequency, volume, muted, mute frequency,
+	  base address) to /proc/radio-typhoon. The file can be viewed with
+	  your favorite pager (i.e. use "more /proc/radio-typhoon" or "less
+	  /proc/radio-typhoon" or simply "cat /proc/radio-typhoon").
+
+config RADIO_TYPHOON_PORT
+	hex "Typhoon I/O port (0x316 or 0x336)"
+	depends on RADIO_TYPHOON=y
+	default "316"
+	help
+	  Enter the I/O port of your Typhoon or EcoRadio radio card.
+
+config RADIO_TYPHOON_MUTEFREQ
+	int "Typhoon frequency set when muting the device (kHz)"
+	depends on RADIO_TYPHOON=y
+	default "87500"
+	help
+	  Enter the frequency used for muting the radio. The device is never
+	  completely silent. If the volume is just turned down, you can still
+	  hear silent voices and music. For that reason, the frequency of the
+	  radio device is set to the frequency you can enter here whenever
+	  the device is muted. There should be no local radio station at that
+	  frequency.
+
+config RADIO_ZOLTRIX
+	tristate "Zoltrix Radio"
+	depends on ISA && VIDEO_DEV
+	---help---
+	  Choose Y here if you have one of these FM radio cards, and then fill
+	  in the port address below.
+
+	  In order to control your radio card, you will need to use programs
+	  that are compatible with the Video For Linux API.  Information on
+	  this API and pointers to "v4l" programs may be found at
+	  <file:Documentation/video4linux/API.html>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-zoltrix.
+
+config RADIO_ZOLTRIX_PORT
+	hex "ZOLTRIX I/O port (0x20c or 0x30c)"
+	depends on RADIO_ZOLTRIX=y
+	default "20c"
+	help
+	  Enter the I/O port of your Zoltrix radio card.
+
+endmenu
+
diff --git a/drivers/media/radio/Makefile b/drivers/media/radio/Makefile
new file mode 100644
index 00000000000..8b351945d06
--- /dev/null
+++ b/drivers/media/radio/Makefile
@@ -0,0 +1,22 @@
+#
+# Makefile for the kernel character device drivers.
+#
+
+miropcm20-objs	:= miropcm20-rds-core.o miropcm20-radio.o
+
+obj-$(CONFIG_RADIO_AZTECH) += radio-aztech.o
+obj-$(CONFIG_RADIO_RTRACK2) += radio-rtrack2.o
+obj-$(CONFIG_RADIO_SF16FMI) += radio-sf16fmi.o
+obj-$(CONFIG_RADIO_SF16FMR2) += radio-sf16fmr2.o
+obj-$(CONFIG_RADIO_CADET) += radio-cadet.o
+obj-$(CONFIG_RADIO_TYPHOON) += radio-typhoon.o
+obj-$(CONFIG_RADIO_TERRATEC) += radio-terratec.o
+obj-$(CONFIG_RADIO_MAXIRADIO) += radio-maxiradio.o
+obj-$(CONFIG_RADIO_RTRACK) += radio-aimslab.o
+obj-$(CONFIG_RADIO_ZOLTRIX) += radio-zoltrix.o
+obj-$(CONFIG_RADIO_MIROPCM20) += miropcm20.o
+obj-$(CONFIG_RADIO_MIROPCM20_RDS) += miropcm20-rds.o
+obj-$(CONFIG_RADIO_GEMTEK) += radio-gemtek.o
+obj-$(CONFIG_RADIO_GEMTEK_PCI) += radio-gemtek-pci.o
+obj-$(CONFIG_RADIO_TRUST) += radio-trust.o
+obj-$(CONFIG_RADIO_MAESTRO) += radio-maestro.o
diff --git a/drivers/media/radio/miropcm20-radio.c b/drivers/media/radio/miropcm20-radio.c
new file mode 100644
index 00000000000..c2ebe8754a9
--- /dev/null
+++ b/drivers/media/radio/miropcm20-radio.c
@@ -0,0 +1,264 @@
+/* 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 can't get frequency, 'tuner status', 'tuner flags' or mute/mono
+ * conditions...                Robert 
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/videodev.h>
+#include "../../../sound/oss/aci.h"
+#include "miropcm20-rds-core.h"
+
+static int radio_nr = -1;
+module_param(radio_nr, int, 0);
+
+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(ACI_SET_TUNERMUTE, mute);
+}
+
+static int pcm20_stereo(struct pcm20_device *dev, unsigned char stereo)
+{
+	dev->stereo = stereo;
+	return aci_write_cmd(ACI_SET_TUNERMONO, !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, NULL, 0);
+	pcm20_stereo(dev, 1);
+
+	return aci_rw_cmd(ACI_WRITE_TUNE, freql, freqh);
+}
+
+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(ACI_READ_TUNERSTATION, -1, -1))<0)
+		return i;
+	pr_debug("check_sig: 0x%x\n", i);
+	if (i & 0x80) {
+		/* no signal from tuner */
+		*flags=0;
+		*signal=0;
+		return 0;
+	} else
+		*signal=0xffff;
+
+	if ((i=aci_rw_cmd(ACI_READ_TUNERSTEREO, -1, -1))<0)
+		return i;
+	if (i & 0x40) {
+		*flags=0;
+	} else {
+		/* stereo */
+		*flags=VIDEO_TUNER_STEREO_ON;
+		/* I can't 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;
+	pr_debug("rds-signal: %d\n", buf);
+	if (buf > 15) {
+		printk("miropcm20-radio: RX strengths unexpected high...\n");
+		buf=15;
+	}
+	/* refine signal */
+	if ((*signal=SCALE(15, 0xffff, buf))==0)
+		*signal = 1;
+
+	return 0;
+}
+
+static int pcm20_do_ioctl(struct inode *inode, struct file *file,
+			  unsigned int cmd, void *arg)
+{
+	struct video_device *dev = video_devdata(file);
+	struct pcm20_device *pcm20 = dev->priv;
+	int i;
+	
+	switch(cmd)
+	{
+		case VIDIOCGCAP:
+		{
+			struct video_capability *v = arg;
+			memset(v,0,sizeof(*v));
+			v->type=VID_TYPE_TUNER;
+			strcpy(v->name, "Miro PCM20");
+			v->channels=1;
+			v->audios=1;
+			return 0;
+		}
+		case VIDIOCGTUNER:
+		{
+			struct video_tuner *v = arg;
+			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");
+			return 0;
+		}
+		case VIDIOCSTUNER:
+		{
+			struct video_tuner *v = arg;
+			if(v->tuner!=0)
+				return -EINVAL;
+			/* Only 1 tuner so no setting needed ! */
+			return 0;
+		}
+		case VIDIOCGFREQ:
+		{
+			unsigned long *freq = arg;
+			*freq = pcm20->freq;
+			return 0;
+		}
+		case VIDIOCSFREQ:
+		{
+			unsigned long *freq = arg;
+			pcm20->freq = *freq;
+			i=pcm20_setfreq(pcm20, pcm20->freq);
+			pr_debug("First view (setfreq): 0x%x\n", i);
+			return i;
+		}
+		case VIDIOCGAUDIO:
+		{	
+			struct video_audio *v = arg;
+			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");
+			return 0;			
+		}
+		case VIDIOCSAUDIO:
+		{
+			struct video_audio *v = arg;
+			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_ioctl(struct inode *inode, struct file *file,
+		       unsigned int cmd, unsigned long arg)
+{
+	return video_usercopy(inode, file, cmd, arg, pcm20_do_ioctl);
+}
+
+static struct pcm20_device pcm20_unit = {
+	.freq   = 87*16000,
+	.muted  = 1,
+};
+
+static struct file_operations pcm20_fops = {
+	.owner		= THIS_MODULE,
+	.open           = video_exclusive_open,
+	.release        = video_exclusive_release,
+	.ioctl		= pcm20_ioctl,
+	.llseek         = no_llseek,
+};
+
+static struct video_device pcm20_radio = {
+	.owner		= THIS_MODULE,
+	.name		= "Miro PCM 20 radio",
+	.type		= VID_TYPE_TUNER,
+	.hardware	= VID_HARDWARE_RTRACK,
+	.fops           = &pcm20_fops,
+	.priv		= &pcm20_unit
+};
+
+static int __init pcm20_init(void)
+{
+	if(video_register_device(&pcm20_radio, VFL_TYPE_RADIO, radio_nr)==-1)
+		goto video_register_device;
+		
+	if(attach_aci_rds()<0)
+		goto attach_aci_rds;
+
+	printk(KERN_INFO "Miro PCM20 radio card driver.\n");
+
+	return 0;
+
+ attach_aci_rds:
+	video_unregister_device(&pcm20_radio);
+ video_register_device:
+	return -EINVAL;
+}
+
+MODULE_AUTHOR("Ruurd Reitsma");
+MODULE_DESCRIPTION("A driver for the Miro PCM20 radio card.");
+MODULE_LICENSE("GPL");
+
+static void __exit pcm20_cleanup(void)
+{
+	unload_aci_rds();
+	video_unregister_device(&pcm20_radio);
+}
+
+module_init(pcm20_init);
+module_exit(pcm20_cleanup);
diff --git a/drivers/media/radio/miropcm20-rds-core.c b/drivers/media/radio/miropcm20-rds-core.c
new file mode 100644
index 00000000000..a917a90cb5d
--- /dev/null
+++ b/drivers/media/radio/miropcm20-rds-core.c
@@ -0,0 +1,210 @@
+/*
+ *  Many thanks to Fred Seidel <seidel@metabox.de>, the
+ *  designer of the RDS decoder hardware. With his help
+ *  I was able to code this driver.
+ *  Thanks also to Norberto Pellicci, Dominic Mounteney
+ *  <DMounteney@pinnaclesys.com> and www.teleauskunft.de
+ *  for good hints on finding Fred. It was somewhat hard
+ *  to locate him here in Germany... [:
+ *
+ * Revision history:
+ *
+ *   2000-08-09  Robert Siemer <Robert.Siemer@gmx.de>
+ *        RDS support for MiroSound PCM20 radio
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <asm/semaphore.h>
+#include <asm/io.h>
+#include "../../../sound/oss/aci.h"
+#include "miropcm20-rds-core.h"
+
+#define DEBUG 0
+
+static struct semaphore aci_rds_sem;
+
+#define RDS_DATASHIFT          2   /* Bit 2 */
+#define RDS_DATAMASK        (1 << RDS_DATASHIFT)
+#define RDS_BUSYMASK        0x10   /* Bit 4 */
+#define RDS_CLOCKMASK       0x08   /* Bit 3 */
+
+#define RDS_DATA(x)         (((x) >> RDS_DATASHIFT) & 1) 
+
+
+#if DEBUG
+static void print_matrix(char array[], unsigned int length)
+{
+        int i, j;
+
+        for (i=0; i<length; i++) {
+                printk(KERN_DEBUG "aci-rds: ");
+                for (j=7; j>=0; j--) {
+                        printk("%d", (array[i] >> j) & 0x1);
+                }
+                if (i%8 == 0)
+                        printk(" byte-border\n");
+                else
+                        printk("\n");
+        }
+}
+#endif /* DEBUG */
+
+static int byte2trans(unsigned char byte, unsigned char sendbuffer[], int size)
+{
+	int i;
+
+	if (size != 8)
+		return -1;
+	for (i = 7; i >= 0; i--)
+		sendbuffer[7-i] = (byte & (1 << i)) ? RDS_DATAMASK : 0;
+	sendbuffer[0] |= RDS_CLOCKMASK;
+
+	return 0;
+}
+
+static int rds_waitread(void)
+{
+	unsigned char byte;
+	int i=2000;
+
+	do {
+		byte=inb(RDS_REGISTER);
+		i--;
+	}
+	while ((byte & RDS_BUSYMASK) && i);
+
+	if (i) {
+		#if DEBUG
+		printk(KERN_DEBUG "rds_waitread()");
+		print_matrix(&byte, 1);
+		#endif
+		return (byte);
+	} else {
+		printk(KERN_WARNING "aci-rds: rds_waitread() timeout...\n");
+		return -1;
+	}
+}
+
+/* don't use any ..._nowait() function if you are not sure what you do... */
+
+static inline void rds_rawwrite_nowait(unsigned char byte)
+{
+	#if DEBUG
+	printk(KERN_DEBUG "rds_rawwrite()");
+	print_matrix(&byte, 1);
+	#endif
+	outb(byte, RDS_REGISTER);
+}
+
+static int rds_rawwrite(unsigned char byte)
+{
+	if (rds_waitread() >= 0) {
+		rds_rawwrite_nowait(byte);
+		return 0;
+	} else
+		return -1;
+}
+
+static int rds_write(unsigned char cmd)
+{
+	unsigned char sendbuffer[8];
+	int i;
+	
+	if (byte2trans(cmd, sendbuffer, 8) != 0){
+		return -1;
+	} else {
+		for (i=0; i<8; i++) {
+			rds_rawwrite(sendbuffer[i]);
+		}
+	}
+	return 0;
+}
+
+static int rds_readcycle_nowait(void)
+{
+	rds_rawwrite_nowait(0);
+	return rds_waitread();
+}
+
+static int rds_readcycle(void)
+{
+	if (rds_rawwrite(0) < 0)
+		return -1;
+	return rds_waitread();
+}
+
+static int rds_read(unsigned char databuffer[], int datasize)
+{
+	#define READSIZE (8*datasize)
+
+	int i,j;
+
+	if (datasize < 1)  /* nothing to read */
+		return 0;
+
+	/* to be able to use rds_readcycle_nowait()
+	   I have to waitread() here */
+	if (rds_waitread() < 0)
+		return -1;
+	
+	memset(databuffer, 0, datasize);
+
+	for (i=0; i< READSIZE; i++)
+		if((j=rds_readcycle_nowait()) < 0) {
+			return -1;
+		} else {
+			databuffer[i/8]|=(RDS_DATA(j) << (7-(i%8)));
+		}
+
+	return 0;
+}
+
+static int rds_ack(void)
+{
+	int i=rds_readcycle();
+
+	if (i < 0)
+		return -1;
+	if (i & RDS_DATAMASK) {
+		return 0;  /* ACK  */
+	} else {
+		printk(KERN_DEBUG "aci-rds: NACK\n");
+		return 1;  /* NACK */
+	}
+}
+
+int aci_rds_cmd(unsigned char cmd, unsigned char databuffer[], int datasize)
+{
+	int ret;
+
+	if (down_interruptible(&aci_rds_sem))
+		return -EINTR;
+
+	rds_write(cmd);
+
+	/* RDS_RESET doesn't need further processing */
+	if (cmd!=RDS_RESET && (rds_ack() || rds_read(databuffer, datasize)))
+		ret = -1;
+	else
+		ret = 0;
+
+	up(&aci_rds_sem);
+	
+	return ret;
+}
+EXPORT_SYMBOL(aci_rds_cmd);
+
+int __init attach_aci_rds(void)
+{
+	init_MUTEX(&aci_rds_sem);
+	return 0;
+}
+
+void __exit unload_aci_rds(void)
+{
+}
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/radio/miropcm20-rds-core.h b/drivers/media/radio/miropcm20-rds-core.h
new file mode 100644
index 00000000000..aeb5761f046
--- /dev/null
+++ b/drivers/media/radio/miropcm20-rds-core.h
@@ -0,0 +1,19 @@
+#ifndef _MIROPCM20_RDS_CORE_H_
+#define _MIROPCM20_RDS_CORE_H_
+
+extern int aci_rds_cmd(unsigned char cmd, unsigned char databuffer[], int datasize);
+
+#define RDS_STATUS      0x01
+#define RDS_STATIONNAME 0x02
+#define RDS_TEXT        0x03
+#define RDS_ALTFREQ     0x04
+#define RDS_TIMEDATE    0x05
+#define RDS_PI_CODE     0x06
+#define RDS_PTYTATP     0x07
+#define RDS_RESET       0x08
+#define RDS_RXVALUE     0x09
+
+extern void __exit unload_aci_rds(void);
+extern int __init attach_aci_rds(void);
+
+#endif /* _MIROPCM20_RDS_CORE_H_ */
diff --git a/drivers/media/radio/miropcm20-rds.c b/drivers/media/radio/miropcm20-rds.c
new file mode 100644
index 00000000000..df79d5e0aae
--- /dev/null
+++ b/drivers/media/radio/miropcm20-rds.c
@@ -0,0 +1,133 @@
+/* MiroSOUND PCM20 radio rds interface driver
+ * (c) 2001 Robert Siemer <Robert.Siemer@gmx.de>
+ * Thanks to Fred Seidel. See miropcm20-rds-core.c for further information.
+ */
+
+/* Revision history:
+ *
+ *   2001-04-18  Robert Siemer <Robert.Siemer@gmx.de>
+ *        separate file for user interface driver
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/delay.h>
+#include <asm/uaccess.h>
+#include "miropcm20-rds-core.h"
+
+static char * text_buffer;
+static int rds_users = 0;
+
+
+static int rds_f_open(struct inode *in, struct file *fi)
+{
+	if (rds_users)
+		return -EBUSY;
+
+	rds_users++;
+	if ((text_buffer=kmalloc(66, GFP_KERNEL)) == 0) {
+		rds_users--;
+		printk(KERN_NOTICE "aci-rds: Out of memory by open()...\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static int rds_f_release(struct inode *in, struct file *fi)
+{
+	kfree(text_buffer);
+
+	rds_users--;
+	return 0;
+}
+
+static void print_matrix(char *ch, char out[])
+{
+        int j;
+
+	for (j=7; j>=0; j--) {
+		 out[7-j] = ((*ch >> j) & 0x1) + '0';
+	}
+}
+
+static ssize_t rds_f_read(struct file *file, char __user *buffer, size_t length, loff_t *offset)
+{
+//	i = sprintf(text_buffer, "length: %d, offset: %d\n", length, *offset);
+
+	char c;
+	char bits[8];
+
+	msleep(2000);
+	aci_rds_cmd(RDS_STATUS, &c, 1);
+	print_matrix(&c, bits);