case SOUND_PCM_READ_CHANNELS:		  	put_user(audio_channels, (long *) arg);		 	break;	  	case SNDCTL_DSP_SPEED:		  	get_user(val, (long *) arg);		  	val = audio_set_dsp_speed(val);                        if (val < 0) 				return -EINVAL;		  	put_user(val, (long *) arg);		  	break;	  	case SOUND_PCM_READ_RATE:		  	put_user(audio_rate, (long *) arg);		  	break;	  	case SNDCTL_DSP_GETFMTS:		  	put_user(AUDIO_FMT_MASK, (long *) arg);		  	break;	  	case SNDCTL_DSP_GETBLKSIZE:			if(file->f_mode & FMODE_WRITE)		  		return put_user(audio_fragsize, (long *) arg);			else						return put_user(audio_fragsize, (int *) arg);	  	case SNDCTL_DSP_SETFRAGMENT:		        if (file->f_mode & FMODE_WRITE) {			  		if (output_stream.buffers)			  		return -EBUSY;		  		get_user(val, (long *) arg);		  		audio_fragsize = 1 << (val & 0xFFFF);		  		if (audio_fragsize < 16)			  		audio_fragsize = 16;		  		if (audio_fragsize > 16384)			  		audio_fragsize = 16384;		  		audio_nbfrags = (val >> 16) & 0x7FFF;				if (audio_nbfrags < 2)					audio_nbfrags = 2;		  		if (audio_nbfrags * audio_fragsize > 128 * 1024)			  		audio_nbfrags = 128 * 1024 / audio_fragsize;		  		if (audio_setup_buf(&output_stream))			  		return -ENOMEM;				}			if (file->f_mode & FMODE_READ) {				if (input_stream.buffers)					return -EBUSY;				get_user(val, (int *) arg);				audio_fragsize =  1 << (val & 0xFFFF);				if (audio_fragsize < 16)					audio_fragsize = 16;				if (audio_fragsize > 16384)                                        audio_fragsize = 16384;                                audio_nbfrags = (val >> 16) & 0x7FFF;                                if (audio_nbfrags < 2)                                        audio_nbfrags = 2;                                if (audio_nbfrags * audio_fragsize > 128 * 1024)                                        audio_nbfrags = 128 * 1024 / audio_fragsize;                                if (audio_setup_buf(&input_stream))                                        return -ENOMEM;			}		 	break;	  	case SNDCTL_DSP_SYNC:			return 0;//GDLC		  	return audio_sync(file);	  	case SNDCTL_DSP_GETOSPACE:		{			audio_stream_t *s = &output_stream;			audio_buf_info *inf = (audio_buf_info *) arg;			int err = verify_area(VERIFY_WRITE, inf, sizeof(*inf));			int i;			int frags = 0, bytes = 0;			if (err)				return err;			for (i = 0; i < s->nbfrags; i++) {				if (atomic_read(&s->buffers[i].sem.count) > 0) {					if (s->buffers[i].size == 0) frags++;					bytes += s->fragsize - s->buffers[i].size;				}			}			put_user(frags, &inf->fragments);			put_user(s->nbfrags, &inf->fragstotal);			put_user(s->fragsize, &inf->fragsize);			put_user(bytes, &inf->bytes);			break;		}		case SNDCTL_DSP_GETISPACE:		{			audio_stream_t *s = &input_stream;			audio_buf_info *inf = (audio_buf_info *) arg;			int err = verify_area(VERIFY_WRITE, inf, sizeof(*inf));			int i;			int frags = 0, bytes = 0;			if (!(file->f_mode & FMODE_READ))                                return -EINVAL;			if (err)				return err;			for(i = 0; i < s->nbfrags; i++){			if (atomic_read(&s->buffers[i].sem.count) > 0)                                {                                        if (s->buffers[i].size == s->fragsize)                                                frags++;                                        bytes += s->buffers[i].size;                                }                        }			put_user(frags, &inf->fragments);                        put_user(s->nbfrags, &inf->fragstotal);                        put_user(s->fragsize, &inf->fragsize);                        put_user(bytes, &inf->bytes);                        break;		}	  	case SNDCTL_DSP_RESET:			if (file->f_mode & FMODE_READ) {                                audio_clear_buf(&input_stream);                        }                        if (file->f_mode & FMODE_WRITE) {                                audio_clear_buf(&output_stream);                        }                        return 0;		case SNDCTL_DSP_NONBLOCK:			file->f_flags |= O_NONBLOCK;                        return 0;	 	case SNDCTL_DSP_POST:	      	case SNDCTL_DSP_SUBDIVIDE:	      	case SNDCTL_DSP_GETCAPS:	      	case SNDCTL_DSP_GETTRIGGER:	      	case SNDCTL_DSP_SETTRIGGER:	      	case SNDCTL_DSP_GETIPTR:	      	case SNDCTL_DSP_GETOPTR:	      	case SNDCTL_DSP_MAPINBUF:	      	case SNDCTL_DSP_MAPOUTBUF:	      	case SNDCTL_DSP_SETSYNCRO:	      	case SNDCTL_DSP_SETDUPLEX:		  	return -ENOSYS;	  	default:		  	return smdk2410_mixer_ioctl(inode, file, cmd, arg);	}	return 0;}static int smdk2410_audio_open(struct inode *inode, struct file *file){			int cold = !audio_active;	DPRINTK("audio_open\n");	if ((file->f_flags & O_ACCMODE) == O_RDONLY) {	//GDLC	if (audio_rd_refcount || audio_wr_refcount)		if (audio_rd_refcount)				return -EBUSY;		audio_rd_refcount++;	} else if ((file->f_flags & O_ACCMODE) == O_WRONLY) {		if (audio_wr_refcount)			return -EBUSY;		audio_wr_refcount++;	} else if ((file->f_flags & O_ACCMODE) == O_RDWR) {		if (audio_rd_refcount || audio_wr_refcount)			return -EBUSY;		audio_rd_refcount++;		audio_wr_refcount++;	} else		return -EINVAL;	if (cold) {		audio_rate = AUDIO_RATE_DEFAULT;		audio_channels = AUDIO_CHANNELS_DEFAULT;		audio_fragsize = AUDIO_FRAGSIZE_DEFAULT;		audio_nbfrags = AUDIO_NBFRAGS_DEFAULT;		init_s3c2410_iis_bus_txrx();//GDLC		if ((file->f_mode & FMODE_WRITE)){		//GDLC		init_s3c2410_iis_bus_tx();				audio_clear_buf(&output_stream);		}		if ((file->f_mode & FMODE_READ)){		//GDLC		init_s3c2410_iis_bus_rx();				audio_clear_buf(&input_stream);		}	}	return 0;}static int smdk2410_mixer_open(struct inode *inode, struct file *file){	return 0;}static int smdk2410_audio_release(struct inode *inode, struct file *file){	DPRINTK("audio_release\n");	if (file->f_mode & FMODE_READ) {		  	if (audio_rd_refcount == 1)				audio_clear_buf(&input_stream);			  	audio_rd_refcount = 0;	}	if(file->f_mode & FMODE_WRITE) {		  	if (audio_wr_refcount == 1) {			    	audio_sync(file);			    	audio_clear_buf(&output_stream);			    	audio_wr_refcount = 0;		    	}	  	}	return 0;}static int smdk2410_mixer_release(struct inode *inode, struct file *file){	return 0;}static struct file_operations smdk2410_audio_fops = {	.llseek = smdk2410_audio_llseek,	.write  = smdk2410_audio_write,	.read	= smdk2410_audio_read,	.poll	= smdk2410_audio_poll,	.ioctl	= smdk2410_audio_ioctl,	.open	= smdk2410_audio_open,	.release = smdk2410_audio_release};static struct file_operations smdk2410_mixer_fops = {	.ioctl	= smdk2410_mixer_ioctl,	.open	= smdk2410_mixer_open,	.release = smdk2410_mixer_release};static void init_uda1341(void){	unsigned long flags;  	uda1341_volume = 62 - ((DEF_VOLUME * 61) / 100);	uda1341_boost = 0;  	uda_sampling = DATA2_DEEMP_NONE;	uda_sampling &= ~(DATA2_MUTE);		local_irq_save(flags);	/* To Set Bit 2 of GPBDAT to be 1 (GPIO_L3MODE=0x01010102)*/	s3c2410_gpio_setpin(S3C2410_GPB2,1);	/* To Set Bit 4 of GPBDAT to be 1 (GPIO_L3CLOCK=0x01010104)*/	s3c2410_gpio_setpin(S3C2410_GPB4,1);	local_irq_restore(flags);		uda1341_l3_address(UDA1341_REG_STATUS);        /* set 384 system clock,MSB */	uda1341_l3_data(STAT0_SC_384FS | STAT0_IF_MSB);     	/* reset uda1341*/        uda1341_l3_data(0x40 | STAT0_SC_384FS | STAT0_IF_MSB);         uda1341_l3_data(STAT1 | STAT1_DAC_GAIN | STAT1_ADC_GAIN | STAT1_ADC_ON | STAT1_DAC_ON);        uda1341_l3_address(UDA1341_REG_DATA0);	/* maximum volume */	uda1341_l3_data(DATA0 |DATA0_VOLUME(uda1341_volume)); 	uda1341_l3_data(DATA1 |DATA1_BASS(uda1341_boost)| DATA1_TREBLE(0));        uda1341_l3_data(uda_sampling); 	uda1341_l3_data(EXTADDR(EXT2));	uda1341_l3_data(EXTDATA(EXT2_MIC_GAIN(0x6)) | EXT2_MIXMODE_CH1);}static void init_s3c2410_iis_bus_rx(void){	unsigned long tmp_read;	__raw_writel(0,S3C2410_SBC_IISCON);	__raw_writel(0,S3C2410_SBC_IISMOD);	__raw_writel(0,S3C2410_SBC_IISFCON);        /* 44 KHz , 384fs */	__raw_writel((IISPSR_A(iispsr_value(S_CLOCK_FREQ, 44100)) 		   | IISPSR_B(iispsr_value(S_CLOCK_FREQ, 44100)))		   ,S3C2410_SBC_IISPSR);		__raw_writel(S3C2410_IISCON_RXDMAEN    		/* Transmit DMA service request */		   | S3C2410_IISCON_TXIDLE 		/* Receive Channel idle */		   | (1<<1)				/* IIS Prescaler Enable */		   ,S3C2410_SBC_IISCON);	 	__raw_writel((0<<8) 				/* Master mode */		   |S3C2410_IISMOD_RXMODE 		/* Transmit */		   | S3C2410_IISMOD_LR_LLOW 		/* Low for left channel */		   | S3C2410_IISMOD_MSB 		/* MSB-justified format */		   | S3C2410_IISMOD_16BIT 		/* Serial data bit/channel is 16 bit */		   |(1<<2) 				/* Master clock freq = 384 fs */		   | S3C2410_IISMOD_32FS 		/* 32 fs */		   ,S3C2410_SBC_IISMOD);	 	__raw_writel(S3C2410_IISFCON_RXDMA 		/* Transmit FIFO access mode:DMA */		   | S3C2410_IISFCON_RXENABLE		/* Transmit FIFO enable */		   ,S3C2410_SBC_IISFCON);			tmp_read=__raw_readl(S3C2410_SBC_IISCON);	tmp_read=tmp_read | S3C2410_IISCON_IISEN;	/* IIS enable(start) */	__raw_writel(tmp_read,S3C2410_SBC_IISCON);}static void init_s3c2410_iis_bus_tx(void){	unsigned long tmp_read;   	__raw_writel(0,S3C2410_SBC_IISCON);	__raw_writel(0,S3C2410_SBC_IISMOD);	__raw_writel(0,S3C2410_SBC_IISFCON);    	/* 44 KHz , 384fs */	 __raw_writel( (IISPSR_A(iispsr_value(S_CLOCK_FREQ, 44100)) \				 | IISPSR_B(iispsr_value(S_CLOCK_FREQ, 44100))),S3C2410_SBC_IISPSR);	 	__raw_writel(S3C2410_IISCON_TXDMAEN 		/* Transmit DMA service request */	           | S3C2410_IISCON_RXIDLE 		/* Receive Channel idle */		   | (1<<1)				/* IIS Prescaler Enable */		   ,S3C2410_SBC_IISCON);	 	__raw_writel((0<<8) 				/* Master mode */		   |S3C2410_IISMOD_TXMODE 		/* Transmit */		   | S3C2410_IISMOD_LR_LLOW 		/* Low for left channel */		   | S3C2410_IISMOD_MSB 		/* MSB-justified format */		   | S3C2410_IISMOD_16BIT  		/* Serial data bit/channel is 16 bit */		   |(1<<2) 				/* Master clock freq = 384 fs */		   | S3C2410_IISMOD_32FS 		/* 32 fs */		   ,S3C2410_SBC_IISMOD);	 	__raw_writel(S3C2410_IISFCON_TXDMA		/* Transmit FIFO access mode : DMA */		   | S3C2410_IISFCON_TXENABLE 		/*Transmit FIFO enable */		   ,S3C2410_SBC_IISFCON);		tmp_read=__raw_readl(S3C2410_SBC_IISCON);	tmp_read=tmp_read | S3C2410_IISCON_IISEN;	/* IIS enable (start) */	__raw_writel(tmp_read,S3C2410_SBC_IISCON);}static int __init audio_init_dma(audio_stream_t * s){	s3c2410_dmasrc_t source; 	if(s->dma_ch== 2) {		/* UDA1341,........MEM */		source=S3C2410_DMASRC_MEM;		s3c2410_dma_devconfig(s->dma_ch,source, 3, 0x55000010); 		s3c2410_dma_config(s->dma_ch, 2,0xa0900000/* 0xa0d00000*/);		s3c2410_dma_set_buffdone_fn(s->dma_ch, audio_dmaout_done_callback);		s3c2410_dma_setflags(s->dma_ch,S3C2410_DMAF_AUTOSTART);		return s3c2410_dma_request(s->dma_ch,&s3c2410_dma_client_out,NULL);		}	else if(s->dma_ch == 1) {		source=S3C2410_DMASRC_HW;		s3c2410_dma_devconfig(s->dma_ch,source,3,0x55000010);		s3c2410_dma_config(s->dma_ch, 2,0xa2900000);		s3c2410_dma_set_buffdone_fn(s->dma_ch, audio_dmain_done_callback);		s3c2410_dma_setflags(s->dma_ch,S3C2410_DMAF_AUTOSTART);		return s3c2410_dma_request(s->dma_ch,&s3c2410_dma_client_in,NULL);		}	else		return 1;}static int audio_clear_dma(audio_stream_t * s,s3c2410_dma_client_t *client){	s3c2410_dma_free(s->dma_ch,client);	return 0;}int __init s3c2410_uda1341_init(void){	unsigned long flags;	local_irq_save(flags);	/*	 * GPB 4: L3CLOCK, OUTPUT ,Pull up disable	 * To set Bit 8 & Bit 9 of GPBCON to be 01(GPIO_L3CLOCK=0x01010104)	 * To set Bit 4 of GPBUP to be 1	 */ 	s3c2410_gpio_cfgpin(S3C2410_GPB4,S3C2410_GPB4_OUTP);	s3c2410_gpio_pullup(S3C2410_GPB4,1);	/* GPB 3: L3DATA, OUTPUT ,Pull up disable	 * To set Bit 6 & Bit 7 of GPBCON to be 01	 * To set Bit 3 of GPBUP to be 1	 */	s3c2410_gpio_cfgpin(S3C2410_GPB3,S3C2410_GPB3_OUTP);	s3c2410_gpio_pullup(S3C2410_GPB3,1);	/* GPB 2: L3MODE, OUTPUT ,Pull up disable	 * To set Bit 4 & Bit 5 of GPBCON to be 01	 * To set Bit 2 of GPBUP to be 1	 */	s3c2410_gpio_cfgpin(S3C2410_GPB2,S3C2410_GPB2_OUTP);	s3c2410_gpio_pullup(S3C2410_GPB2,1);	/* GPE 3: I2SSDI ,Pull up enable	 * To set Bit 6 & Bit 7 of GPECON to be 02	 * To set Bit 3 of GPEUP to be 0	 */	s3c2410_gpio_cfgpin(S3C2410_GPE3,S3C2410_GPE3_I2SSDI);	s3c2410_gpio_pullup(S3C2410_GPE3,0);		/* GPE 0: I2SLRCK,Pull up enable 	 * To Set Bit 0 & Bit 1 of GPECON to be 02	 * To set Bit 0 of GPEUP to be 0	 */	s3c2410_gpio_cfgpin(S3C2410_GPE0,S3C2410_GPE0_I2SLRCK);	s3c2410_gpio_pullup(S3C2410_GPE0,0);		/* GPE 1: I2SSCLK,Pull up enable 	 * To set Bit 2 & Bit 3 of GPECON to be 02	 * To set Bit 1 of GPEUP  to be 0	 */	s3c2410_gpio_cfgpin(S3C2410_GPE1,S3C2410_GPE1_I2SSCLK);	s3c2410_gpio_pullup(S3C2410_GPE1,0);		/* GPE 2: CDCLK,Pull up enable 	 * To set Bit 4 & Bit 5 of GPECON to be 02	 * To set Bit 2 of GPEUP to be 0	 */	s3c2410_gpio_cfgpin(S3C2410_GPE2,S3C2410_GPE2_CDCLK);	s3c2410_gpio_pullup(S3C2410_GPE2,0);		/* GPE 4: I2SSDO,Pull up enable 	 * To set Bit 8 &bit 9 of GPECON to be 02	 * To set Bit 4 of GPEUP to be 0	 */	s3c2410_gpio_cfgpin(S3C2410_GPE4,S3C2410_GPE4_I2SSDO);	s3c2410_gpio_pullup(S3C2410_GPE4,0);		local_irq_restore(flags);	init_uda1341();		output_stream.dma_ch=DMA_CH2;  	if (audio_init_dma(&output_stream)) {		audio_clear_dma(&output_stream,&s3c2410_dma_client_out);		printk( KERN_WARNING AUDIO_NAME_VERBOSE 			": unable to get DMA channels for output\n" );		return -EBUSY;	}	input_stream.dma_ch=DMA_CH1;  	if (audio_init_dma(&input_stream)) {                audio_clear_dma(&input_stream,&s3c2410_dma_client_in);                printk( KERN_WARNING AUDIO_NAME_VERBOSE                        ": unable to get DMA channels for input\n" );                return -EBUSY;        }		audio_dev_dsp = register_sound_dsp(&smdk2410_audio_fops, -1);	audio_dev_mixer = register_sound_mixer(&smdk2410_mixer_fops, -1);	printk(AUDIO_NAME_VERBOSE " initialized\n");	return 0;}void __exit s3c2410_uda1341_exit(void){	unregister_sound_dsp(audio_dev_dsp);	unregister_sound_mixer(audio_dev_mixer);	audio_clear_dma(&output_stream,&s3c2410_dma_client_out);	audio_clear_dma(&input_stream,&s3c2410_dma_client_in); /* input */	printk(AUDIO_NAME_VERBOSE " unloaded\n");}module_init(s3c2410_uda1341_init);module_exit(s3c2410_uda1341_exit);