1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Driver for Sound Cors PDAudioCF soundcard 4 * 5 * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz> 6 */ 7 8 #ifndef __PDAUDIOCF_H 9 #define __PDAUDIOCF_H 10 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 71 struct 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 }; 105 106 static 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 } 110 111 static inline unsigned short pdacf_reg_read(struct snd_pdacf *chip, unsigned char reg) 112 { 113 return inw(chip->port + reg); 114 } 115 116 struct snd_pdacf *snd_pdacf_create(struct snd_card *card); 117 int snd_pdacf_ak4117_create(struct snd_pdacf *pdacf); 118 void snd_pdacf_powerdown(struct snd_pdacf *chip); 119 #ifdef CONFIG_PM 120 int snd_pdacf_suspend(struct snd_pdacf *chip); 121 int snd_pdacf_resume(struct snd_pdacf *chip); 122 #endif 123 int snd_pdacf_pcm_new(struct snd_pdacf *chip); 124 irqreturn_t pdacf_interrupt(int irq, void *dev); 125 irqreturn_t pdacf_threaded_irq(int irq, void *dev); 126 void pdacf_reinit(struct snd_pdacf *chip, int resume); 127 128 #endif /* __PDAUDIOCF_H */ 129