cregit-Linux how code gets into the kernel

Release 4.7 sound/sh/aica.h

Directory: sound/sh
/* aica.h
 * Header file for ALSA driver for
 * Sega Dreamcast Yamaha AICA sound
 * Copyright Adrian McMenamin
 * <adrian@mcmen.demon.co.uk>
 * 2006
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

/* SPU memory and register constants etc */

#define G2_FIFO 0xa05f688c

#define SPU_MEMORY_BASE 0xA0800000

#define ARM_RESET_REGISTER 0xA0702C00

#define SPU_REGISTER_BASE 0xA0700000

/* AICA channels stuff */

#define AICA_CONTROL_POINT 0xA0810000

#define AICA_CONTROL_CHANNEL_SAMPLE_NUMBER 0xA0810008

#define AICA_CHANNEL0_CONTROL_OFFSET 0x10004

/* Command values */

#define AICA_CMD_KICK 0x80000000

#define AICA_CMD_NONE 0

#define AICA_CMD_START 1

#define AICA_CMD_STOP 2

#define AICA_CMD_VOL 3

/* Sound modes */

#define SM_8BIT		1

#define SM_16BIT	0

#define SM_ADPCM	2

/* Buffer and period size */

#define AICA_BUFFER_SIZE 0x8000

#define AICA_PERIOD_SIZE 0x800

#define AICA_PERIOD_NUMBER 16


#define AICA_CHANNEL0_OFFSET 0x11000

#define AICA_CHANNEL1_OFFSET 0x21000

#define CHANNEL_OFFSET 0x10000


#define AICA_DMA_CHANNEL 5

#define AICA_DMA_MODE 5


#define SND_AICA_DRIVER "AICA"


struct aica_channel {
	
uint32_t cmd;		/* Command ID           */
	
uint32_t pos;		/* Sample position      */
	
uint32_t length;	/* Sample length        */
	
uint32_t freq;		/* Frequency            */
	
uint32_t vol;		/* Volume 0-255         */
	
uint32_t pan;		/* Pan 0-255            */
	
uint32_t sfmt;		/* Sound format         */
	
uint32_t flags;		/* Bit flags            */
};


struct snd_card_aica {
	
struct work_struct spu_dma_work;
	
struct snd_card *card;
	
struct aica_channel *channel;
	
struct snd_pcm_substream *substream;
	
int clicks;
	
int current_period;
	
struct timer_list timer;
	
int master_volume;
	
int dma_check;
};

Overall Contributors

PersonTokensPropCommitsCommitProp
adrian mcmenaminadrian mcmenamin17597.77%266.67%
takashi iwaitakashi iwai42.23%133.33%
Total179100.00%3100.00%
Directory: sound/sh
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