129 lines · c
1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Driver for Sound Cors PDAudioCF soundcard4 *5 * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>6 */7 8#ifndef __PDAUDIOCF_H9#define __PDAUDIOCF_H10 11#include <sound/pcm.h>12#include <linux/io.h>13#include <linux/interrupt.h>14#include <pcmcia/cistpl.h>15#include <pcmcia/ds.h>16 17#include <sound/ak4117.h>18 19/* PDAUDIOCF registers */20#define PDAUDIOCF_REG_MD 0x00 /* music data, R/O */21#define PDAUDIOCF_REG_WDP 0x02 /* write data pointer / 2, R/O */22#define PDAUDIOCF_REG_RDP 0x04 /* read data pointer / 2, R/O */23#define PDAUDIOCF_REG_TCR 0x06 /* test control register W/O */24#define PDAUDIOCF_REG_SCR 0x08 /* status and control, R/W (see bit description) */25#define PDAUDIOCF_REG_ISR 0x0a /* interrupt status, R/O */26#define PDAUDIOCF_REG_IER 0x0c /* interrupt enable, R/W */27#define PDAUDIOCF_REG_AK_IFR 0x0e /* AK interface register, R/W */28 29/* PDAUDIOCF_REG_TCR */30#define PDAUDIOCF_ELIMAKMBIT (1<<0) /* simulate AKM music data */31#define PDAUDIOCF_TESTDATASEL (1<<1) /* test data selection, 0 = 0x55, 1 = pseudo-random */32 33/* PDAUDIOCF_REG_SCR */34#define PDAUDIOCF_AK_SBP (1<<0) /* serial port busy flag */35#define PDAUDIOCF_RST (1<<2) /* FPGA, AKM + SRAM buffer reset */36#define PDAUDIOCF_PDN (1<<3) /* power down bit */37#define PDAUDIOCF_CLKDIV0 (1<<4) /* choose 24.576Mhz clock divided by 1,2,3 or 4 */38#define PDAUDIOCF_CLKDIV1 (1<<5)39#define PDAUDIOCF_RECORD (1<<6) /* start capturing to SRAM */40#define PDAUDIOCF_AK_SDD (1<<7) /* music data detected */41#define PDAUDIOCF_RED_LED_OFF (1<<8) /* red LED off override */42#define PDAUDIOCF_BLUE_LED_OFF (1<<9) /* blue LED off override */43#define PDAUDIOCF_DATAFMT0 (1<<10) /* data format bits: 00 = 16-bit, 01 = 18-bit */44#define PDAUDIOCF_DATAFMT1 (1<<11) /* 10 = 20-bit, 11 = 24-bit, all right justified */45#define PDAUDIOCF_FPGAREV(x) ((x>>12)&0x0f) /* FPGA revision */46 47/* PDAUDIOCF_REG_ISR */48#define PDAUDIOCF_IRQLVL (1<<0) /* Buffer level IRQ */49#define PDAUDIOCF_IRQOVR (1<<1) /* Overrun IRQ */50#define PDAUDIOCF_IRQAKM (1<<2) /* AKM IRQ */51 52/* PDAUDIOCF_REG_IER */53#define PDAUDIOCF_IRQLVLEN0 (1<<0) /* fill threshold levels; 00 = none, 01 = 1/8th of buffer */54#define PDAUDIOCF_IRQLVLEN1 (1<<1) /* 10 = 1/4th of buffer, 11 = 1/2th of buffer */55#define PDAUDIOCF_IRQOVREN (1<<2) /* enable overrun IRQ */56#define PDAUDIOCF_IRQAKMEN (1<<3) /* enable AKM IRQ */57#define PDAUDIOCF_BLUEDUTY0 (1<<8) /* blue LED duty cycle; 00 = 100%, 01 = 50% */58#define PDAUDIOCF_BLUEDUTY1 (1<<9) /* 02 = 25%, 11 = 12% */59#define PDAUDIOCF_REDDUTY0 (1<<10) /* red LED duty cycle; 00 = 100%, 01 = 50% */60#define PDAUDIOCF_REDDUTY1 (1<<11) /* 02 = 25%, 11 = 12% */61#define PDAUDIOCF_BLUESDD (1<<12) /* blue LED against SDD bit */62#define PDAUDIOCF_BLUEMODULATE (1<<13) /* save power when 100% duty cycle selected */63#define PDAUDIOCF_REDMODULATE (1<<14) /* save power when 100% duty cycle selected */64#define PDAUDIOCF_HALFRATE (1<<15) /* slow both LED blinks by half (also spdif detect rate) */65 66/* chip status */67#define PDAUDIOCF_STAT_IS_STALE (1<<0)68#define PDAUDIOCF_STAT_IS_CONFIGURED (1<<1)69#define PDAUDIOCF_STAT_IS_SUSPENDED (1<<2)70 71struct snd_pdacf {72 struct snd_card *card;73 int index;74 75 unsigned long port;76 int irq;77 78 struct mutex reg_lock;79 unsigned short regmap[8];80 unsigned short suspend_reg_scr;81 82 spinlock_t ak4117_lock;83 struct ak4117 *ak4117;84 85 unsigned int chip_status;86 87 struct snd_pcm *pcm;88 struct snd_pcm_substream *pcm_substream;89 unsigned int pcm_running: 1;90 unsigned int pcm_channels;91 unsigned int pcm_swab;92 unsigned int pcm_little;93 unsigned int pcm_frame;94 unsigned int pcm_sample;95 unsigned int pcm_xor;96 unsigned int pcm_size;97 unsigned int pcm_period;98 unsigned int pcm_tdone;99 unsigned int pcm_hwptr;100 void *pcm_area;101 102 /* pcmcia stuff */103 struct pcmcia_device *p_dev;104};105 106static inline void pdacf_reg_write(struct snd_pdacf *chip, unsigned char reg, unsigned short val)107{108 outw(chip->regmap[reg>>1] = val, chip->port + reg);109}110 111static inline unsigned short pdacf_reg_read(struct snd_pdacf *chip, unsigned char reg)112{113 return inw(chip->port + reg);114}115 116struct snd_pdacf *snd_pdacf_create(struct snd_card *card);117int snd_pdacf_ak4117_create(struct snd_pdacf *pdacf);118void snd_pdacf_powerdown(struct snd_pdacf *chip);119#ifdef CONFIG_PM120int snd_pdacf_suspend(struct snd_pdacf *chip);121int snd_pdacf_resume(struct snd_pdacf *chip);122#endif123int snd_pdacf_pcm_new(struct snd_pdacf *chip);124irqreturn_t pdacf_interrupt(int irq, void *dev);125irqreturn_t pdacf_threaded_irq(int irq, void *dev);126void pdacf_reinit(struct snd_pdacf *chip, int resume);127 128#endif /* __PDAUDIOCF_H */129