V4L/DVB: ngene: Initial check-in

Add Micronas nGene PCIe bridge driver.

The source code was provided by Micronas / Ralph Metzler,
and has been reformatted to comply with Linux Codingstyle.
Signed-off-by: NMatthias Benesch <twoof7@freenet.de>
Signed-off-by: NRalph Metzler <rjkm@metzlerbros.de>
Signed-off-by: NOliver Endriss <o.endriss@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/ngene/ngene-ioctls.h

+/*
+ * Copyright (C) 2006-2007 Micronas
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 only, as published by the Free Software Foundation.
+ *
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
+ */
+
+#ifndef _NGENE_IOCTLS_H_
+#define _NGENE_IOCTLS_H_
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+#define NGENE_MAGIC 'n'
+
+typedef struct {
+	unsigned char       I2CAddress;
+	unsigned char       OutLength;      /* bytes to write first */
+	unsigned char       InLength;       /* bytes to read */
+	unsigned char       OutData[256];   /* output data */
+	unsigned char       InData[256];    /* input data */
+} MIC_I2C_READ, *PMIC_I2C_READ;
+
+#define IOCTL_MIC_I2C_READ          _IOWR(NGENE_MAGIC, 0x00, MIC_I2C_READ)
+
+
+typedef struct {
+	unsigned char       I2CAddress;
+	unsigned char       Length;
+	unsigned char       Data[250];
+} MIC_I2C_WRITE, *PMIC_I2C_WRITE;
+
+typedef struct {
+	unsigned char       Length;
+	unsigned char       Data[250];
+} MIC_I2C_CONTINUE_WRITE, *PMIC_I2C_CONTINUE_WRITE;
+
+#define IOCTL_MIC_I2C_WRITE                   _IOW(NGENE_MAGIC, 0x01, \
+						   MIC_I2C_WRITE)
+#define IOCTL_MIC_I2C_WRITE_NOSTOP            _IOW(NGENE_MAGIC, 0x0c, \
+						   MIC_I2C_WRITE)
+#define IOCTL_MIC_I2C_CONTINUE_WRITE_NOSTOP   _IOW(NGENE_MAGIC, 0x0d, \
+						   MIC_I2C_CONTINUE_WRITE)
+#define IOCTL_MIC_I2C_CONTINUE_WRITE          _IOW(NGENE_MAGIC, 0x0e, \
+						   MIC_I2C_CONTINUE_WRITE)
+
+typedef struct {
+	unsigned char       ModeSelect;     /* see bellow */
+	unsigned char       OutLength;      /* bytes to write first */
+	unsigned char       InLength;       /* bytes to read */
+	unsigned char       OutData[250];   /* output data */
+} MIC_SPI_READ, *PMIC_SPI_READ;
+
+#define IOCTL_MIC_SPI_READ          _IOWR(NGENE_MAGIC, 0x02, MIC_SPI_READ)
+
+typedef struct {
+	unsigned char       ModeSelect;     /* see below */
+	unsigned char       Length;
+	unsigned char       Data[250];
+} MIC_SPI_WRITE, *PMIC_SPI_WRITE;
+
+#define IOCTL_MIC_SPI_WRITE         _IOW(NGENE_MAGIC, 0x03, MIC_SPI_READ)
+
+#define IOCTL_MIC_DOWNLOAD_FIRMWARE _IOW(NGENE_MAGIC, 0x06, unsigned char)
+
+#define IOCTL_MIC_NO_OP             _IO(NGENE_MAGIC, 0x18)
+
+#define IOCTL_MIC_TUN_RDY           _IO(NGENE_MAGIC, 0x07)
+#define IOCTL_MIC_DEC_SRATE         _IOW(NGENE_MAGIC, 0x0a, int)
+#define IOCTL_MIC_DEC_RDY           _IO(NGENE_MAGIC, 0x09)
+#define IOCTL_MIC_DEC_FREESYNC      _IOW(NGENE_MAGIC, 0x08, int)
+#define IOCTL_MIC_TUN_DETECT        _IOWR(NGENE_MAGIC, 0x0b, int)
+
+typedef struct {
+	unsigned char       Stream; /* < UVI1, UVI2, or TVOUT */
+	unsigned char       Control;
+	unsigned char       Mode;
+	unsigned short      nLines;
+	unsigned short      nBytesPerLine;
+	unsigned short      nVBILines;
+	unsigned short      nBytesPerVBILine;
+} MIC_STREAM_CONTROL, *PMIC_STREAM_CONTROL;
+
+enum MIC_STREAM_CONTROL_MODE_BITS {
+	MSC_MODE_LOOPBACK         = 0x80,
+	MSC_MODE_AVLOOP           = 0x40,
+	MSC_MODE_AUDIO_SPDIF      = 0x20,
+	MSC_MODE_AVSYNC           = 0x10,
+	MSC_MODE_TRANSPORT_STREAM = 0x08,
+	MSC_MODE_AUDIO_CAPTURE    = 0x04,
+	MSC_MODE_VBI_CAPTURE      = 0x02,
+	MSC_MODE_VIDEO_CAPTURE    = 0x01
+};
+
+#define IOCTL_MIC_STREAM_CONTROL    _IOW(NGENE_MAGIC, 0x22, MIC_STREAM_CONTROL)
+
+typedef struct {
+	unsigned char       Stream; /* < UVI1, UVI2 */
+	unsigned int        Rate;   /* < Rate in 100nsec to release the buffers
+					 to the stream filters */
+} MIC_SIMULATE_CONTROL, *PMIC_SIMULATE_CONTROL;
+
+#define IOCTL_MIC_SIMULATE_CONTROL  _IOW(NGENE_MAGIC, 0x23, \
+					 MIC_SIMULATE_CONTROL)
+
+/*
+ * IOCTL definitions for the test driver
+ *
+ *   NOTE: the test driver also supports following IOCTL defined above:
+ *      IOCTL_MIC_NO_OP:
+ *      IOCTL_MIC_RECEIVE_BUFFER:
+ *      IOCTL_MIC_STREAM_CONTROL:
+ *      IOCTL_MIC_I2C_READ:
+ *      IOCTL_MIC_I2C_WRITE:
+ *
+ *
+ *  VI2C access to NGene memory (read)
+ *
+ *   GETMEM  in  : ULONG start offset
+ *           out : read data (length defined by size of output buffer)
+ *   SETMEM  in  : ULONG start offset followed by data to be written
+ *                 (length defined by size of input buffer)
+ */
+
+typedef struct {
+	__u32 Start;
+	__u32 Length;
+	__u8 *Data;
+} MIC_MEM;
+
+#define IOCTL_MIC_TEST_GETMEM       _IOWR(NGENE_MAGIC, 0x90, MIC_MEM)
+#define IOCTL_MIC_TEST_SETMEM       _IOW(NGENE_MAGIC, 0x91, MIC_MEM)
+
+typedef struct {
+	__u8 Address;
+	__u8 Data;
+} MIC_IMEM;
+
+#define IOCTL_MIC_SFR_READ          _IOWR(NGENE_MAGIC, 0xa2, MIC_IMEM)
+#define IOCTL_MIC_SFR_WRITE         _IOWR(NGENE_MAGIC, 0xa3, MIC_IMEM)
+
+#define IOCTL_MIC_IRAM_READ         _IOWR(NGENE_MAGIC, 0xa4, MIC_IMEM)
+#define IOCTL_MIC_IRAM_WRITE        _IOWR(NGENE_MAGIC, 0xa5, MIC_IMEM)
+
+/*
+ * Set Ngene gpio bit
+ */
+typedef struct {
+	unsigned char   Select;
+	unsigned char   Level;
+} MIC_SET_GPIO_PIN, *PMIC_SET_GPIO_PIN;
+
+#define IOCTL_MIC_SET_GPIO_PIN      _IOWR(NGENE_MAGIC, 0xa6, MIC_SET_GPIO_PIN)
+
+/*
+ * Uart ioctls:
+ *   These are implemented in the test driver.
+ *
+ * Enable UART
+ *
+ *   In:  1 byte containing baud rate: 0 = 19200, 1 = 9600, 2 = 4800, 3 = 2400
+ *   Out: nothing
+ */
+#define IOCTL_MIC_UART_ENABLE       _IOW(NGENE_MAGIC,  0xa9, unsigned char)
+
+/*
+ * Enable UART
+ *
+ *   In:  nothing
+ *   Out: nothing
+ */
+#define IOCTL_MIC_UART_DISABLE      _IO(NGENE_MAGIC, 0xAA)
+
+/*
+ * Write UART
+ *
+ *   In:  data to write
+ *   Out: nothing
+ *   Note: Call returns immediatly, data are send out asynchrounsly
+ */
+#define IOCTL_MIC_UART_WRITE        _IOW(NGENE_MAGIC, 0xAB, unsigned char)
+
+/*
+ * Read UART
+ *
+ *   In:  nothing
+ *   Out: Data read (since last call)
+ *   Note: Call returns immediatly
+ */
+#define IOCTL_MIC_UART_READ         _IOR(NGENE_MAGIC, 0xAC, unsigned char)
+
+/*
+ * UART Status
+ *
+ *   In:  nothing
+ *   Out: Byte 0 : Transmitter busy,
+ *        Byte 1 : Nbr of characters available for read.
+ *   Note: Call returns immediatly
+ */
+#define IOCTL_MIC_UART_STATUS       _IOR(NGENE_MAGIC, 0xAD, unsigned char)
+
+#endif

drivers/media/dvb/ngene/ngene-snd.c

+/*
+ * ngene_snd.c: nGene PCIe bridge driver ALSA support
+ *
+ * Copyright (C) 2005-2007 Micronas
+ *
+ * Based on the initial ALSA support port by Thomas Eschbach.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 only, as published by the Free Software Foundation.
+ *
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+
+#include "ngene.h"
+#include "ngene-ioctls.h"
+
+static int sound_dev;
+
+/* sound module parameters (see "Module Parameters") */
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1};
+
+/****************************************************************************/
+/* PCM Sound Funktions ******************************************************/
+/****************************************************************************/
+
+static struct snd_pcm_hardware snd_mychip_capture_hw = {
+	.info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER),
+	.formats =          SNDRV_PCM_FMTBIT_S16_LE,
+	.rates =            (SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000
+			    | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000
+			    | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000),
+	.rate_min =         11025,
+	.rate_max =         48000,
+	.channels_min =     2,
+	.channels_max =     2,
+	.buffer_bytes_max = 16384,
+	.period_bytes_min = 8192,
+	.period_bytes_max = 8192,
+	.periods_min =      1,
+	.periods_max =      2,
+};
+
+/* open callback */
+static int snd_mychip_capture_open(struct snd_pcm_substream *substream)
+{
+
+	struct mychip *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	runtime->hw = snd_mychip_capture_hw;
+	chip->substream = substream;
+	return 0;
+}
+
+/* close callback */
+static int snd_mychip_capture_close(struct snd_pcm_substream *substream)
+{
+	struct mychip *chip = snd_pcm_substream_chip(substream);
+	chip->substream = NULL;
+	return 0;
+
+}
+
+/* hw_params callback */
+static int snd_mychip_pcm_hw_params(struct snd_pcm_substream *substream,
+				    struct snd_pcm_hw_params *hw_params)
+{
+	struct mychip *chip = snd_pcm_substream_chip(substream);
+	struct ngene_channel *chan = chip->chan;
+	if (chan->soundbuffisallocated == 0) {
+		chan->soundbuffisallocated = 1;
+		return snd_pcm_lib_malloc_pages(substream,
+						params_buffer_bytes(hw_params));
+	}
+	return 0;
+}
+
+/* hw_free callback */
+static int snd_mychip_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+	struct mychip *chip = snd_pcm_substream_chip(substream);
+	struct ngene_channel *chan = chip->chan;
+	int retval = 0;
+	if (chan->soundbuffisallocated == 1) {
+		chan->soundbuffisallocated = 0;
+		retval = snd_pcm_lib_free_pages(substream);
+	}
+	return retval;
+}
+
+/* prepare callback */
+static int snd_mychip_pcm_prepare(struct snd_pcm_substream *substream)
+{
+
+	struct mychip *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct ngene_channel *chan = chip->chan;
+	struct ngene_channel *ch = &chan->dev->channel[chan->number - 2];
+	struct i2c_adapter *adap = &ch->i2c_adapter;
+
+	if (ch->soundstreamon == 1)
+		;/*ngene_command_stream_control_sound(chan->dev, chan->number,
+						      0x00, 0x00);*/
+	i2c_clients_command(adap, IOCTL_MIC_DEC_SRATE, &(runtime->rate));
+	mdelay(80);
+	if (ch->soundstreamon == 1)
+		;/*ngene_command_stream_control_sound(chan->dev, chan->number,
+						      0x80, 0x04);*/
+
+	return 0;
+}
+
+/* trigger callback */
+static int snd_mychip_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct mychip *chip = snd_pcm_substream_chip(substream);
+	struct ngene_channel *chan = chip->chan;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		/* do something to start the PCM engine */
+		chan->sndbuffflag = 0;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		/* do something to stop the PCM engine */
+		chip->substream = NULL;
+		chan->sndbuffflag = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+/* pointer callback */
+static snd_pcm_uframes_t
+snd_mychip_pcm_pointer(struct snd_pcm_substream *substream)
+{
+	struct mychip *chip = snd_pcm_substream_chip(substream);
+	struct ngene_channel *chan = chip->chan;
+	unsigned int current_ptr;
+
+	if (chan->sndbuffflag == 0) {
+		current_ptr = (unsigned int)
+			      bytes_to_frames(substream->runtime, 0);
+	} else {
+		current_ptr = (unsigned int)
+			      bytes_to_frames(substream->runtime, 8192);
+	}
+	return current_ptr;
+}
+
+/*copy sound buffer to pcm middel layer*/
+static int snd_capture_copy(struct snd_pcm_substream *substream, int channel,
+			    snd_pcm_uframes_t pos, void *dst,
+			    snd_pcm_uframes_t count)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct mychip *chip = snd_pcm_substream_chip(substream);
+	struct ngene_channel *chan = chip->chan;
+
+	memcpy(dst, chan->soundbuffer, frames_to_bytes(runtime, count));
+	return 0;
+}
+
+static int snd_pcm_capture_silence(struct snd_pcm_substream *substream,
+				   int channel,
+				   snd_pcm_uframes_t pos,
+				   snd_pcm_uframes_t count)
+{
+	/*
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct mychip *chip = snd_pcm_substream_chip(substream);
+	struct ngene_channel *chan = chip->chan;
+	*/
+	return 0;
+}
+
+/* operators */
+static struct snd_pcm_ops snd_mychip_capture_ops = {
+	.open      = snd_mychip_capture_open,
+	.close     = snd_mychip_capture_close,
+	.ioctl     = snd_pcm_lib_ioctl,
+	.hw_params = snd_mychip_pcm_hw_params,
+	.hw_free   = snd_mychip_pcm_hw_free,
+	.prepare   = snd_mychip_pcm_prepare,
+	.trigger   = snd_mychip_pcm_trigger,
+	.pointer   = snd_mychip_pcm_pointer,
+	.copy      = snd_capture_copy,
+	.silence   = snd_pcm_capture_silence,
+};
+
+static void mychip_pcm_free(struct snd_pcm *pcm)
+{
+	pcm->private_data = NULL;
+}
+
+/* create a pcm device */
+static int snd_mychip_new_pcm(struct mychip *chip, struct ngene_channel *chan)
+{
+	struct snd_pcm *pcm;
+	int err;
+	char gro[10];
+	sprintf(gro, "PCM%d", chan->number);
+
+	err = snd_pcm_new(chip->card, gro, 0, 0, 1, &pcm);
+	if (err < 0)
+		return err;
+
+	pcm->private_data = chip;
+	pcm->private_free = mychip_pcm_free;
+
+	sprintf(pcm->name, "MyPCM_%d", chan->number);
+
+	chip->pcm = pcm;
+	/* set operators */
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mychip_capture_ops);
+	/* pre-allocation of buffers */
+
+	err = snd_pcm_lib_preallocate_pages_for_all(pcm,
+						    SNDRV_DMA_TYPE_CONTINUOUS,
+						    snd_dma_continuous_data(
+							GFP_KERNEL),
+						    0, 16 * 1024);
+
+	return 0;
+}
+
+#define ngene_VOLUME(xname, xindex, addr) \
+  { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+  .info = snd_volume_info, \
+  .get = snd_volume_get, .put = snd_volume_put, \
+  .private_value = addr }
+
+static int snd_volume_info(struct snd_kcontrol *kcontrol,
+			   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 20;
+	return 0;
+}
+
+static int snd_volume_get(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	struct mychip *chip = snd_kcontrol_chip(kcontrol);
+	int addr = kcontrol->private_value;
+
+	ucontrol->value.integer.value[0] = chip->mixer_volume[addr][0];
+	ucontrol->value.integer.value[1] = chip->mixer_volume[addr][1];
+	return 0;
+}
+
+static int snd_volume_put(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	struct mychip *chip = snd_kcontrol_chip(kcontrol);
+	int change, addr = kcontrol->private_value;
+	int left, right;
+
+	left = ucontrol->value.integer.value[0];
+	if (left < 0)
+		left = 0;
+	if (left > 20)
+		left = 20;
+	right = ucontrol->value.integer.value[1];
+	if (right < 0)
+		right = 0;
+	if (right > 20)
+		right = 20;
+	spin_lock_irq(&chip->mixer_lock);
+	change = chip->mixer_volume[addr][0] != left ||
+		 chip->mixer_volume[addr][1] != right;
+	chip->mixer_volume[addr][0] = left;
+	chip->mixer_volume[addr][1] = right;
+	spin_unlock_irq(&chip->mixer_lock);
+	return change;
+}
+
+#define ngene_CAPSRC(xname, xindex, addr) \
+  { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+  .info = snd_capsrc_info, \
+  .get = snd_capsrc_get, .put = snd_capsrc_put, \
+  .private_value = addr }
+
+static int snd_capsrc_info(struct snd_kcontrol *kcontrol,
+			   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+static int snd_capsrc_get(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	struct mychip *chip = snd_kcontrol_chip(kcontrol);
+	int addr = kcontrol->private_value;
+
+	spin_lock_irq(&chip->mixer_lock);
+	ucontrol->value.integer.value[0] = chip->capture_source[addr][0];
+	ucontrol->value.integer.value[1] = chip->capture_source[addr][1];
+	spin_unlock_irq(&chip->mixer_lock);
+
+	return 0;
+}
+
+static int snd_capsrc_put(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	struct mychip *chip = snd_kcontrol_chip(kcontrol);
+	int change, addr = kcontrol->private_value;
+	int left, right;
+
+	left = ucontrol->value.integer.value[0] & 1;
+	right = ucontrol->value.integer.value[1] & 1;
+	spin_lock_irq(&chip->mixer_lock);
+
+	change = chip->capture_source[addr][0] != left ||
+		 chip->capture_source[addr][1] != right;
+	chip->capture_source[addr][0] = left;
+	chip->capture_source[addr][1] = right;
+
+	spin_unlock_irq(&chip->mixer_lock);
+
+	if (change)
+		printk(KERN_INFO "snd_capsrc_put change\n");
+	return 0;
+}
+
+static struct snd_kcontrol_new snd_controls[] = {
+	ngene_VOLUME("Video Volume", 0, MIXER_ADDR_TVTUNER),
+	ngene_CAPSRC("Video Capture Switch", 0, MIXER_ADDR_TVTUNER),
+};
+
+static int snd_card_new_mixer(struct mychip *chip)
+{
+	struct snd_card *card = chip->card;
+	unsigned int idx;
+	int err;
+
+	strcpy(card->mixername, "NgeneMixer");
+
+	for (idx = 0; idx < ARRAY_SIZE(snd_controls); idx++) {
+		err = snd_ctl_add(card, snd_ctl_new1(&snd_controls[idx], chip));
+		if (err < 0)
+			return err;
+	}
+	return 0;
+}
+
+int ngene_snd_init(struct ngene_channel *chan)
+{
+	struct snd_card *card;
+	struct mychip *chip;
+	int err;
+
+	if (sound_dev >= SNDRV_CARDS)
+		return -ENODEV;
+	if (!enable[sound_dev]) {
+		sound_dev++;
+		return -ENOENT;
+	}
+	card = snd_card_new(index[sound_dev], id[sound_dev],
+			    THIS_MODULE, sizeof(struct mychip));
+	if (card == NULL)
+		return -ENOMEM;
+
+	chip = card->private_data;
+	chip->card = card;
+	chip->irq = -1;
+
+	sprintf(card->shortname, "MyChip%d%d", chan->dev->nr, chan->number);
+	sprintf(card->shortname, "Myown%d%d", chan->dev->nr, chan->number);
+	sprintf(card->longname, "My first Own Chip on Card Nr.%d  is %d",
+		chan->dev->nr, chan->number);
+
+	spin_lock_init(&chip->lock);
+	spin_lock_init(&chip->mixer_lock);
+
+	snd_card_new_mixer(chip);
+
+	snd_mychip_new_pcm(chip, chan);
+	err = snd_card_register(card);
+	if (err < 0) {
+		snd_card_free(card);
+		return err;
+	}
+	chan->soundcard = card;
+	chan->mychip = chip;
+	chip->chan = chan;
+	sound_dev++;
+	return 0;
+}
+
+int ngene_snd_exit(struct ngene_channel *chan)
+{
+	snd_card_free(chan->soundcard);
+	return 0;
+}