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/*
* Driver for Sound Cors PDAudioCF soundcard
*
* Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __PDAUDIOCF_H
#define __PDAUDIOCF_H
#include <sound/pcm.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>
#include <sound/ak4117.h>
/* PDAUDIOCF registers */
#define PDAUDIOCF_REG_MD 0x00 /* music data, R/O */
#define PDAUDIOCF_REG_WDP 0x02 /* write data pointer / 2, R/O */
#define PDAUDIOCF_REG_RDP 0x04 /* read data pointer / 2, R/O */
#define PDAUDIOCF_REG_TCR 0x06 /* test control register W/O */
#define PDAUDIOCF_REG_SCR 0x08 /* status and control, R/W (see bit description) */
#define PDAUDIOCF_REG_ISR 0x0a /* interrupt status, R/O */
#define PDAUDIOCF_REG_IER 0x0c /* interrupt enable, R/W */
#define PDAUDIOCF_REG_AK_IFR 0x0e /* AK interface register, R/W */
/* PDAUDIOCF_REG_TCR */
#define PDAUDIOCF_ELIMAKMBIT (1<<0) /* simulate AKM music data */
#define PDAUDIOCF_TESTDATASEL (1<<1) /* test data selection, 0 = 0x55, 1 = pseudo-random */
/* PDAUDIOCF_REG_SCR */
#define PDAUDIOCF_AK_SBP (1<<0) /* serial port busy flag */
#define PDAUDIOCF_RST (1<<2) /* FPGA, AKM + SRAM buffer reset */
#define PDAUDIOCF_PDN (1<<3) /* power down bit */
#define PDAUDIOCF_CLKDIV0 (1<<4) /* choose 24.576Mhz clock divided by 1,2,3 or 4 */
#define PDAUDIOCF_CLKDIV1 (1<<5)
#define PDAUDIOCF_RECORD (1<<6) /* start capturing to SRAM */
#define PDAUDIOCF_AK_SDD (1<<7) /* music data detected */
#define PDAUDIOCF_RED_LED_OFF (1<<8) /* red LED off override */
#define PDAUDIOCF_BLUE_LED_OFF (1<<9) /* blue LED off override */
#define PDAUDIOCF_DATAFMT0 (1<<10) /* data format bits: 00 = 16-bit, 01 = 18-bit */
#define PDAUDIOCF_DATAFMT1 (1<<11) /* 10 = 20-bit, 11 = 24-bit, all right justified */
#define PDAUDIOCF_FPGAREV(x) ((x>>12)&0x0f) /* FPGA revision */
/* PDAUDIOCF_REG_ISR */
#define PDAUDIOCF_IRQLVL (1<<0) /* Buffer level IRQ */
#define PDAUDIOCF_IRQOVR (1<<1) /* Overrun IRQ */
#define PDAUDIOCF_IRQAKM (1<<2) /* AKM IRQ */
/* PDAUDIOCF_REG_IER */
#define PDAUDIOCF_IRQLVLEN0 (1<<0) /* fill threshold levels; 00 = none, 01 = 1/8th of buffer */
#define PDAUDIOCF_IRQLVLEN1 (1<<1) /* 10 = 1/4th of buffer, 11 = 1/2th of buffer */
#define PDAUDIOCF_IRQOVREN (1<<2) /* enable overrun IRQ */
#define PDAUDIOCF_IRQAKMEN (1<<3) /* enable AKM IRQ */
#define PDAUDIOCF_BLUEDUTY0 (1<<8) /* blue LED duty cycle; 00 = 100%, 01 = 50% */
#define PDAUDIOCF_BLUEDUTY1 (1<<9) /* 02 = 25%, 11 = 12% */
#define PDAUDIOCF_REDDUTY0 (1<<10) /* red LED duty cycle; 00 = 100%, 01 = 50% */
#define PDAUDIOCF_REDDUTY1 (1<<11) /* 02 = 25%, 11 = 12% */
#define PDAUDIOCF_BLUESDD (1<<12) /* blue LED against SDD bit */
#define PDAUDIOCF_BLUEMODULATE (1<<13) /* save power when 100% duty cycle selected */
#define PDAUDIOCF_REDMODULATE (1<<14) /* save power when 100% duty cycle selected */
#define PDAUDIOCF_HALFRATE (1<<15) /* slow both LED blinks by half (also spdif detect rate) */
/* chip status */
#define PDAUDIOCF_STAT_IS_STALE (1<<0)
#define PDAUDIOCF_STAT_IS_CONFIGURED (1<<1)
#define PDAUDIOCF_STAT_IS_SUSPENDED (1<<2)
struct snd_pdacf {
struct snd_card *card;
int index;
unsigned long port;
int irq;
spinlock_t reg_lock;
unsigned short regmap[8];
unsigned short suspend_reg_scr;
struct tasklet_struct tq;
spinlock_t ak4117_lock;
struct ak4117 *ak4117;
unsigned int chip_status;
struct snd_pcm *pcm;
struct snd_pcm_substream *pcm_substream;
unsigned int pcm_running: 1;
unsigned int pcm_channels;
unsigned int pcm_swab;
unsigned int pcm_little;
unsigned int pcm_frame;
unsigned int pcm_sample;
unsigned int pcm_xor;
unsigned int pcm_size;
unsigned int pcm_period;
unsigned int pcm_tdone;
unsigned int pcm_hwptr;
void *pcm_area;
/* pcmcia stuff */
struct pcmcia_device *p_dev;
};
static inline void pdacf_reg_write(struct snd_pdacf *chip, unsigned char reg, unsigned short val)
{
outw(chip->regmap[reg>>1] = val, chip->port + reg);
}
static inline unsigned short pdacf_reg_read(struct snd_pdacf *chip, unsigned char reg)
{
return inw(chip->port + reg);
}
struct snd_pdacf *snd_pdacf_create(struct snd_card *card);
int snd_pdacf_ak4117_create(struct snd_pdacf *pdacf);
void snd_pdacf_powerdown(struct snd_pdacf *chip);
#ifdef CONFIG_PM
int snd_pdacf_suspend(struct snd_pdacf *chip, pm_message_t state);
int snd_pdacf_resume(struct snd_pdacf *chip);
#endif
int snd_pdacf_pcm_new(struct snd_pdacf *chip);
irqreturn_t pdacf_interrupt(int irq, void *dev);
void pdacf_tasklet(unsigned long private_data);
void pdacf_reinit(struct snd_pdacf *chip, int resume);
#endif /* __PDAUDIOCF_H */
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