[GitHub/mt8127/android_kernel_alcatel_ttab.git] / sound / soc / blackfin / bf5xx-tdm.c

/*
 * File:         sound/soc/blackfin/bf5xx-tdm.c
 * Author:       Barry Song <Barry.Song@analog.com>
 *
 * Created:      Thurs June 04 2009
 * Description:  Blackfin I2S(TDM) CPU DAI driver
 *              Even though TDM mode can be as part of I2S DAI, but there
 *              are so much difference in configuration and data flow,
 *              it's very ugly to integrate I2S and TDM into a module
 *
 * Modified:
 *               Copyright 2009 Analog Devices Inc.
 *
 * Bugs:         Enter bugs at http://blackfin.uclinux.org/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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, see the file COPYING, or write
 * to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/initval.h>
#include <sound/soc.h>

#include <asm/irq.h>
#include <asm/portmux.h>
#include <linux/mutex.h>
#include <linux/gpio.h>

#include "bf5xx-sport.h"
#include "bf5xx-tdm.h"

static int bf5xx_tdm_set_dai_fmt(struct snd_soc_dai *cpu_dai,
	unsigned int fmt)
{
	int ret = 0;

	/* interface format:support TDM,slave mode */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_DSP_A:
		break;
	default:
		printk(KERN_ERR "%s: Unknown DAI format type\n", __func__);
		ret = -EINVAL;
		break;
	}

	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBM_CFM:
		break;
	case SND_SOC_DAIFMT_CBS_CFS:
	case SND_SOC_DAIFMT_CBM_CFS:
	case SND_SOC_DAIFMT_CBS_CFM:
		ret = -EINVAL;
		break;
	default:
		printk(KERN_ERR "%s: Unknown DAI master type\n", __func__);
		ret = -EINVAL;
		break;
	}

	return ret;
}

static int bf5xx_tdm_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params,
	struct snd_soc_dai *dai)
{
	struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
	struct bf5xx_tdm_port *bf5xx_tdm = sport_handle->private_data;
	int ret = 0;

	bf5xx_tdm->tcr2 &= ~0x1f;
	bf5xx_tdm->rcr2 &= ~0x1f;
	switch (params_format(params)) {
	case SNDRV_PCM_FORMAT_S32_LE:
		bf5xx_tdm->tcr2 |= 31;
		bf5xx_tdm->rcr2 |= 31;
		sport_handle->wdsize = 4;
		break;
		/* at present, we only support 32bit transfer */
	default:
		pr_err("not supported PCM format yet\n");
		return -EINVAL;
		break;
	}

	if (!bf5xx_tdm->configured) {
		/*
		 * TX and RX are not independent,they are enabled at the
		 * same time, even if only one side is running. So, we
		 * need to configure both of them at the time when the first
		 * stream is opened.
		 *
		 * CPU DAI:slave mode.
		 */
		ret = sport_config_rx(sport_handle, bf5xx_tdm->rcr1,
			bf5xx_tdm->rcr2, 0, 0);
		if (ret) {
			pr_err("SPORT is busy!\n");
			return -EBUSY;
		}

		ret = sport_config_tx(sport_handle, bf5xx_tdm->tcr1,
			bf5xx_tdm->tcr2, 0, 0);
		if (ret) {
			pr_err("SPORT is busy!\n");
			return -EBUSY;
		}

		bf5xx_tdm->configured = 1;
	}

	return 0;
}

static void bf5xx_tdm_shutdown(struct snd_pcm_substream *substream,
	struct snd_soc_dai *dai)
{
	struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
	struct bf5xx_tdm_port *bf5xx_tdm = sport_handle->private_data;

	/* No active stream, SPORT is allowed to be configured again. */
	if (!dai->active)
		bf5xx_tdm->configured = 0;
}

static int bf5xx_tdm_set_channel_map(struct snd_soc_dai *dai,
		unsigned int tx_num, unsigned int *tx_slot,
		unsigned int rx_num, unsigned int *rx_slot)
{
	struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
	struct bf5xx_tdm_port *bf5xx_tdm = sport_handle->private_data;
	int i;
	unsigned int slot;
	unsigned int tx_mapped = 0, rx_mapped = 0;

	if ((tx_num > BFIN_TDM_DAI_MAX_SLOTS) ||
			(rx_num > BFIN_TDM_DAI_MAX_SLOTS))
		return -EINVAL;

	for (i = 0; i < tx_num; i++) {
		slot = tx_slot[i];
		if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
				(!(tx_mapped & (1 << slot)))) {
			bf5xx_tdm->tx_map[i] = slot;
			tx_mapped |= 1 << slot;
		} else
			return -EINVAL;
	}
	for (i = 0; i < rx_num; i++) {
		slot = rx_slot[i];
		if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
				(!(rx_mapped & (1 << slot)))) {
			bf5xx_tdm->rx_map[i] = slot;
			rx_mapped |= 1 << slot;
		} else
			return -EINVAL;
	}

	return 0;
}

#ifdef CONFIG_PM
static int bf5xx_tdm_suspend(struct snd_soc_dai *dai)
{
	struct sport_device *sport = snd_soc_dai_get_drvdata(dai);

	if (dai->playback_active)
		sport_tx_stop(sport);
	if (dai->capture_active)
		sport_rx_stop(sport);

	/* isolate sync/clock pins from codec while sports resume */
	peripheral_free_list(sport->pin_req);

	return 0;
}

static int bf5xx_tdm_resume(struct snd_soc_dai *dai)
{
	int ret;
	struct sport_device *sport = snd_soc_dai_get_drvdata(dai);

	ret = sport_set_multichannel(sport, 8, 0xFF, 1);
	if (ret) {
		pr_err("SPORT is busy!\n");
		ret = -EBUSY;
	}

	ret = sport_config_rx(sport, 0, 0x1F, 0, 0);
	if (ret) {
		pr_err("SPORT is busy!\n");
		ret = -EBUSY;
	}

	ret = sport_config_tx(sport, 0, 0x1F, 0, 0);
	if (ret) {
		pr_err("SPORT is busy!\n");
		ret = -EBUSY;
	}

	peripheral_request_list(sport->pin_req, "soc-audio");

	return 0;
}

#else
#define bf5xx_tdm_suspend      NULL
#define bf5xx_tdm_resume       NULL
#endif

static struct snd_soc_dai_ops bf5xx_tdm_dai_ops = {
	.hw_params      = bf5xx_tdm_hw_params,
	.set_fmt        = bf5xx_tdm_set_dai_fmt,
	.shutdown       = bf5xx_tdm_shutdown,
	.set_channel_map   = bf5xx_tdm_set_channel_map,
};

static struct snd_soc_dai_driver bf5xx_tdm_dai = {
	.suspend = bf5xx_tdm_suspend,
	.resume = bf5xx_tdm_resume,
	.playback = {
		.channels_min = 2,
		.channels_max = 8,
		.rates = SNDRV_PCM_RATE_48000,
		.formats = SNDRV_PCM_FMTBIT_S32_LE,},
	.capture = {
		.channels_min = 2,
		.channels_max = 8,
		.rates = SNDRV_PCM_RATE_48000,
		.formats = SNDRV_PCM_FMTBIT_S32_LE,},
	.ops = &bf5xx_tdm_dai_ops,
};

static int __devinit bfin_tdm_probe(struct platform_device *pdev)
{
	struct sport_device *sport_handle;
	int ret;

	/* configure SPORT for TDM */
	sport_handle = sport_init(pdev, 4, 8 * sizeof(u32),
		sizeof(struct bf5xx_tdm_port));
	if (!sport_handle)
		return -ENODEV;

	/* SPORT works in TDM mode */
	ret = sport_set_multichannel(sport_handle, 8, 0xFF, 1);
	if (ret) {
		pr_err("SPORT is busy!\n");
		ret = -EBUSY;
		goto sport_config_err;
	}

	ret = sport_config_rx(sport_handle, 0, 0x1F, 0, 0);
	if (ret) {
		pr_err("SPORT is busy!\n");
		ret = -EBUSY;
		goto sport_config_err;
	}

	ret = sport_config_tx(sport_handle, 0, 0x1F, 0, 0);
	if (ret) {
		pr_err("SPORT is busy!\n");
		ret = -EBUSY;
		goto sport_config_err;
	}

	ret = snd_soc_register_dai(&pdev->dev, &bf5xx_tdm_dai);
	if (ret) {
		pr_err("Failed to register DAI: %d\n", ret);
		goto sport_config_err;
	}

	return 0;

sport_config_err:
	sport_done(sport_handle);
	return ret;
}

static int __devexit bfin_tdm_remove(struct platform_device *pdev)
{
	struct sport_device *sport_handle = platform_get_drvdata(pdev);

	snd_soc_unregister_dai(&pdev->dev);
	sport_done(sport_handle);

	return 0;
}

static struct platform_driver bfin_tdm_driver = {
	.probe  = bfin_tdm_probe,
	.remove = __devexit_p(bfin_tdm_remove),
	.driver = {
		.name   = "bfin-tdm",
		.owner  = THIS_MODULE,
	},
};

static int __init bfin_tdm_init(void)
{
	return platform_driver_register(&bfin_tdm_driver);
}
module_init(bfin_tdm_init);

static void __exit bfin_tdm_exit(void)
{
	platform_driver_unregister(&bfin_tdm_driver);
}
module_exit(bfin_tdm_exit);

/* Module information */
MODULE_AUTHOR("Barry Song");
MODULE_DESCRIPTION("TDM driver for ADI Blackfin");
MODULE_LICENSE("GPL");
Commit	Line	Data
01e2ab20 BS	1	/*
	2	* File: sound/soc/blackfin/bf5xx-tdm.c
	3	* Author: Barry Song <Barry.Song@analog.com>
	4	*
	5	* Created: Thurs June 04 2009
	6	* Description: Blackfin I2S(TDM) CPU DAI driver
	7	* Even though TDM mode can be as part of I2S DAI, but there
	8	* are so much difference in configuration and data flow,
	9	* it's very ugly to integrate I2S and TDM into a module
	10	*
	11	* Modified:
	12	* Copyright 2009 Analog Devices Inc.
	13	*
	14	* Bugs: Enter bugs at http://blackfin.uclinux.org/
	15	*
	16	* This program is free software; you can redistribute it and/or modify
	17	* it under the terms of the GNU General Public License as published by
	18	* the Free Software Foundation; either version 2 of the License, or
	19	* (at your option) any later version.
	20	*
	21	* This program is distributed in the hope that it will be useful,
	22	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	23	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	24	* GNU General Public License for more details.
	25	*
	26	* You should have received a copy of the GNU General Public License
	27	* along with this program; if not, see the file COPYING, or write
	28	* to the Free Software Foundation, Inc.,
	29	* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	30	*/
	31
	32	#include <linux/init.h>
	33	#include <linux/module.h>
	34	#include <linux/device.h>
	35	#include <sound/core.h>
	36	#include <sound/pcm.h>
	37	#include <sound/pcm_params.h>
	38	#include <sound/initval.h>
	39	#include <sound/soc.h>
	40
	41	#include <asm/irq.h>
	42	#include <asm/portmux.h>
	43	#include <linux/mutex.h>
	44	#include <linux/gpio.h>
	45
	46	#include "bf5xx-sport.h"
	47	#include "bf5xx-tdm.h"
	48
01e2ab20 BS	49	static int bf5xx_tdm_set_dai_fmt(struct snd_soc_dai *cpu_dai,
	50	unsigned int fmt)
	51	{
	52	int ret = 0;
	53
	54	/* interface format:support TDM,slave mode */
	55	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	56	case SND_SOC_DAIFMT_DSP_A:
	57	break;
	58	default:
	59	printk(KERN_ERR "%s: Unknown DAI format type\n", __func__);
	60	ret = -EINVAL;
	61	break;
	62	}
	63
	64	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	65	case SND_SOC_DAIFMT_CBM_CFM:
	66	break;
	67	case SND_SOC_DAIFMT_CBS_CFS:
	68	case SND_SOC_DAIFMT_CBM_CFS:
	69	case SND_SOC_DAIFMT_CBS_CFM:
	70	ret = -EINVAL;
	71	break;
	72	default:
	73	printk(KERN_ERR "%s: Unknown DAI master type\n", __func__);
	74	ret = -EINVAL;
	75	break;
	76	}
	77
	78	return ret;
	79	}
	80
	81	static int bf5xx_tdm_hw_params(struct snd_pcm_substream *substream,
	82	struct snd_pcm_hw_params *params,
	83	struct snd_soc_dai *dai)
	84	{
2c66cb99 BS	85	struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
2c66cb99 BS	86	struct bf5xx_tdm_port *bf5xx_tdm = sport_handle->private_data;
01e2ab20 BS	87	int ret = 0;
01e2ab20 BS	88
2c66cb99 BS	89	bf5xx_tdm->tcr2 &= ~0x1f;
2c66cb99 BS	90	bf5xx_tdm->rcr2 &= ~0x1f;
01e2ab20 BS	91	switch (params_format(params)) {
01e2ab20 BS	92	case SNDRV_PCM_FORMAT_S32_LE:
2c66cb99 BS	93	bf5xx_tdm->tcr2 \|= 31;
2c66cb99 BS	94	bf5xx_tdm->rcr2 \|= 31;
01e2ab20 BS	95	sport_handle->wdsize = 4;
	96	break;
	97	/* at present, we only support 32bit transfer */
	98	default:
	99	pr_err("not supported PCM format yet\n");
	100	return -EINVAL;
	101	break;
	102	}
	103
2c66cb99	104	if (!bf5xx_tdm->configured) {
01e2ab20 BS	105	/*
	106	* TX and RX are not independent,they are enabled at the
	107	* same time, even if only one side is running. So, we
	108	* need to configure both of them at the time when the first
	109	* stream is opened.
	110	*
	111	* CPU DAI:slave mode.
	112	*/
2c66cb99 BS	113	ret = sport_config_rx(sport_handle, bf5xx_tdm->rcr1,
2c66cb99 BS	114	bf5xx_tdm->rcr2, 0, 0);
01e2ab20 BS	115	if (ret) {
	116	pr_err("SPORT is busy!\n");
	117	return -EBUSY;
	118	}
	119
2c66cb99 BS	120	ret = sport_config_tx(sport_handle, bf5xx_tdm->tcr1,
2c66cb99 BS	121	bf5xx_tdm->tcr2, 0, 0);
01e2ab20 BS	122	if (ret) {
	123	pr_err("SPORT is busy!\n");
	124	return -EBUSY;
	125	}
	126
2c66cb99	127	bf5xx_tdm->configured = 1;
01e2ab20 BS	128	}
	129
	130	return 0;
	131	}
	132
	133	static void bf5xx_tdm_shutdown(struct snd_pcm_substream *substream,
	134	struct snd_soc_dai *dai)
	135	{
2c66cb99 BS	136	struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
	137	struct bf5xx_tdm_port *bf5xx_tdm = sport_handle->private_data;
	138
01e2ab20 BS	139	/* No active stream, SPORT is allowed to be configured again. */
01e2ab20 BS	140	if (!dai->active)
2c66cb99	141	bf5xx_tdm->configured = 0;
01e2ab20 BS	142	}
01e2ab20 BS	143
08db48f1 BS	144	static int bf5xx_tdm_set_channel_map(struct snd_soc_dai *dai,
	145	unsigned int tx_num, unsigned int *tx_slot,
	146	unsigned int rx_num, unsigned int *rx_slot)
	147	{
2c66cb99 BS	148	struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
2c66cb99 BS	149	struct bf5xx_tdm_port *bf5xx_tdm = sport_handle->private_data;
08db48f1 BS	150	int i;
	151	unsigned int slot;
	152	unsigned int tx_mapped = 0, rx_mapped = 0;
	153
	154	if ((tx_num > BFIN_TDM_DAI_MAX_SLOTS) \|\|
	155	(rx_num > BFIN_TDM_DAI_MAX_SLOTS))
	156	return -EINVAL;
	157
	158	for (i = 0; i < tx_num; i++) {
	159	slot = tx_slot[i];
	160	if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
	161	(!(tx_mapped & (1 << slot)))) {
2c66cb99	162	bf5xx_tdm->tx_map[i] = slot;
08db48f1 BS	163	tx_mapped \|= 1 << slot;
	164	} else
	165	return -EINVAL;
	166	}
	167	for (i = 0; i < rx_num; i++) {
	168	slot = rx_slot[i];
	169	if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
	170	(!(rx_mapped & (1 << slot)))) {
2c66cb99	171	bf5xx_tdm->rx_map[i] = slot;
08db48f1 BS	172	rx_mapped \|= 1 << slot;
	173	} else
	174	return -EINVAL;
	175	}
	176
	177	return 0;
	178	}
	179
01e2ab20 BS	180	#ifdef CONFIG_PM
	181	static int bf5xx_tdm_suspend(struct snd_soc_dai *dai)
	182	{
15d2e22b	183	struct sport_device *sport = snd_soc_dai_get_drvdata(dai);
01e2ab20	184
f0fba2ad	185	if (dai->playback_active)
01e2ab20	186	sport_tx_stop(sport);
2c66cb99 BS	187	if (dai->capture_active)
	188	sport_rx_stop(sport);
	189
	190	/* isolate sync/clock pins from codec while sports resume */
	191	peripheral_free_list(sport->pin_req);
	192
01e2ab20 BS	193	return 0;
	194	}
	195
	196	static int bf5xx_tdm_resume(struct snd_soc_dai *dai)
	197	{
	198	int ret;
f0fba2ad	199	struct sport_device *sport = snd_soc_dai_get_drvdata(dai);
01e2ab20	200
01e2ab20 BS	201	ret = sport_set_multichannel(sport, 8, 0xFF, 1);
	202	if (ret) {
	203	pr_err("SPORT is busy!\n");
	204	ret = -EBUSY;
	205	}
	206
950a95d4	207	ret = sport_config_rx(sport, 0, 0x1F, 0, 0);
01e2ab20 BS	208	if (ret) {
	209	pr_err("SPORT is busy!\n");
	210	ret = -EBUSY;
	211	}
	212
950a95d4	213	ret = sport_config_tx(sport, 0, 0x1F, 0, 0);
01e2ab20 BS	214	if (ret) {
	215	pr_err("SPORT is busy!\n");
	216	ret = -EBUSY;
	217	}
	218
2c66cb99 BS	219	peripheral_request_list(sport->pin_req, "soc-audio");
2c66cb99 BS	220
01e2ab20 BS	221	return 0;
	222	}
	223
	224	#else
	225	#define bf5xx_tdm_suspend NULL
	226	#define bf5xx_tdm_resume NULL
	227	#endif
	228
	229	static struct snd_soc_dai_ops bf5xx_tdm_dai_ops = {
	230	.hw_params = bf5xx_tdm_hw_params,
	231	.set_fmt = bf5xx_tdm_set_dai_fmt,
	232	.shutdown = bf5xx_tdm_shutdown,
08db48f1	233	.set_channel_map = bf5xx_tdm_set_channel_map,
01e2ab20 BS	234	};
01e2ab20 BS	235
f0fba2ad	236	static struct snd_soc_dai_driver bf5xx_tdm_dai = {
01e2ab20 BS	237	.suspend = bf5xx_tdm_suspend,
	238	.resume = bf5xx_tdm_resume,
	239	.playback = {
	240	.channels_min = 2,
	241	.channels_max = 8,
	242	.rates = SNDRV_PCM_RATE_48000,
	243	.formats = SNDRV_PCM_FMTBIT_S32_LE,},
	244	.capture = {
	245	.channels_min = 2,
	246	.channels_max = 8,
	247	.rates = SNDRV_PCM_RATE_48000,
	248	.formats = SNDRV_PCM_FMTBIT_S32_LE,},
	249	.ops = &bf5xx_tdm_dai_ops,
	250	};
01e2ab20 BS	251
	252	static int __devinit bfin_tdm_probe(struct platform_device *pdev)
	253	{
2c66cb99 BS	254	struct sport_device *sport_handle;
2c66cb99 BS	255	int ret;
01e2ab20	256
2c66cb99 BS	257	/* configure SPORT for TDM */
	258	sport_handle = sport_init(pdev, 4, 8 * sizeof(u32),
	259	sizeof(struct bf5xx_tdm_port));
	260	if (!sport_handle)
01e2ab20	261	return -ENODEV;
01e2ab20 BS	262
	263	/* SPORT works in TDM mode */
	264	ret = sport_set_multichannel(sport_handle, 8, 0xFF, 1);
	265	if (ret) {
	266	pr_err("SPORT is busy!\n");
	267	ret = -EBUSY;
	268	goto sport_config_err;
	269	}
	270
950a95d4	271	ret = sport_config_rx(sport_handle, 0, 0x1F, 0, 0);
01e2ab20 BS	272	if (ret) {
	273	pr_err("SPORT is busy!\n");
	274	ret = -EBUSY;
	275	goto sport_config_err;
	276	}
	277
950a95d4	278	ret = sport_config_tx(sport_handle, 0, 0x1F, 0, 0);
01e2ab20 BS	279	if (ret) {
	280	pr_err("SPORT is busy!\n");
	281	ret = -EBUSY;
	282	goto sport_config_err;
	283	}
	284
f0fba2ad	285	ret = snd_soc_register_dai(&pdev->dev, &bf5xx_tdm_dai);
01e2ab20 BS	286	if (ret) {
	287	pr_err("Failed to register DAI: %d\n", ret);
	288	goto sport_config_err;
	289	}
08db48f1	290
01e2ab20 BS	291	return 0;
	292
	293	sport_config_err:
2c66cb99	294	sport_done(sport_handle);
01e2ab20 BS	295	return ret;
	296	}
	297
	298	static int __devexit bfin_tdm_remove(struct platform_device *pdev)
	299	{
2c66cb99 BS	300	struct sport_device *sport_handle = platform_get_drvdata(pdev);
2c66cb99 BS	301
f0fba2ad	302	snd_soc_unregister_dai(&pdev->dev);
2c66cb99	303	sport_done(sport_handle);
01e2ab20 BS	304
	305	return 0;
	306	}
	307
	308	static struct platform_driver bfin_tdm_driver = {
	309	.probe = bfin_tdm_probe,
	310	.remove = __devexit_p(bfin_tdm_remove),
	311	.driver = {
	312	.name = "bfin-tdm",
	313	.owner = THIS_MODULE,
	314	},
	315	};
	316
	317	static int __init bfin_tdm_init(void)
	318	{
	319	return platform_driver_register(&bfin_tdm_driver);
	320	}
	321	module_init(bfin_tdm_init);
	322
	323	static void __exit bfin_tdm_exit(void)
	324	{
	325	platform_driver_unregister(&bfin_tdm_driver);
	326	}
	327	module_exit(bfin_tdm_exit);
	328
	329	/* Module information */
	330	MODULE_AUTHOR("Barry Song");
	331	MODULE_DESCRIPTION("TDM driver for ADI Blackfin");
	332	MODULE_LICENSE("GPL");
	333