1 /* 2 * Driver for Sound Cors PDAudioCF soundcard 3 * 4 * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 21 #ifndef __PDAUDIOCF_H 22 #define __PDAUDIOCF_H 23 24 #include <sound/pcm.h> 25 #include <linux/io.h> 26 #include <linux/interrupt.h> 27 #include <pcmcia/cistpl.h> 28 #include <pcmcia/ds.h> 29 30 #include <sound/ak4117.h> 31 32 /* PDAUDIOCF registers */ 33 #define PDAUDIOCF_REG_MD 0x00 /* music data, R/O */ 34 #define PDAUDIOCF_REG_WDP 0x02 /* write data pointer / 2, R/O */ 35 #define PDAUDIOCF_REG_RDP 0x04 /* read data pointer / 2, R/O */ 36 #define PDAUDIOCF_REG_TCR 0x06 /* test control register W/O */ 37 #define PDAUDIOCF_REG_SCR 0x08 /* status and control, R/W (see bit description) */ 38 #define PDAUDIOCF_REG_ISR 0x0a /* interrupt status, R/O */ 39 #define PDAUDIOCF_REG_IER 0x0c /* interrupt enable, R/W */ 40 #define PDAUDIOCF_REG_AK_IFR 0x0e /* AK interface register, R/W */ 41 42 /* PDAUDIOCF_REG_TCR */ 43 #define PDAUDIOCF_ELIMAKMBIT (1<<0) /* simulate AKM music data */ 44 #define PDAUDIOCF_TESTDATASEL (1<<1) /* test data selection, 0 = 0x55, 1 = pseudo-random */ 45 46 /* PDAUDIOCF_REG_SCR */ 47 #define PDAUDIOCF_AK_SBP (1<<0) /* serial port busy flag */ 48 #define PDAUDIOCF_RST (1<<2) /* FPGA, AKM + SRAM buffer reset */ 49 #define PDAUDIOCF_PDN (1<<3) /* power down bit */ 50 #define PDAUDIOCF_CLKDIV0 (1<<4) /* choose 24.576Mhz clock divided by 1,2,3 or 4 */ 51 #define PDAUDIOCF_CLKDIV1 (1<<5) 52 #define PDAUDIOCF_RECORD (1<<6) /* start capturing to SRAM */ 53 #define PDAUDIOCF_AK_SDD (1<<7) /* music data detected */ 54 #define PDAUDIOCF_RED_LED_OFF (1<<8) /* red LED off override */ 55 #define PDAUDIOCF_BLUE_LED_OFF (1<<9) /* blue LED off override */ 56 #define PDAUDIOCF_DATAFMT0 (1<<10) /* data format bits: 00 = 16-bit, 01 = 18-bit */ 57 #define PDAUDIOCF_DATAFMT1 (1<<11) /* 10 = 20-bit, 11 = 24-bit, all right justified */ 58 #define PDAUDIOCF_FPGAREV(x) ((x>>12)&0x0f) /* FPGA revision */ 59 60 /* PDAUDIOCF_REG_ISR */ 61 #define PDAUDIOCF_IRQLVL (1<<0) /* Buffer level IRQ */ 62 #define PDAUDIOCF_IRQOVR (1<<1) /* Overrun IRQ */ 63 #define PDAUDIOCF_IRQAKM (1<<2) /* AKM IRQ */ 64 65 /* PDAUDIOCF_REG_IER */ 66 #define PDAUDIOCF_IRQLVLEN0 (1<<0) /* fill threshold levels; 00 = none, 01 = 1/8th of buffer */ 67 #define PDAUDIOCF_IRQLVLEN1 (1<<1) /* 10 = 1/4th of buffer, 11 = 1/2th of buffer */ 68 #define PDAUDIOCF_IRQOVREN (1<<2) /* enable overrun IRQ */ 69 #define PDAUDIOCF_IRQAKMEN (1<<3) /* enable AKM IRQ */ 70 #define PDAUDIOCF_BLUEDUTY0 (1<<8) /* blue LED duty cycle; 00 = 100%, 01 = 50% */ 71 #define PDAUDIOCF_BLUEDUTY1 (1<<9) /* 02 = 25%, 11 = 12% */ 72 #define PDAUDIOCF_REDDUTY0 (1<<10) /* red LED duty cycle; 00 = 100%, 01 = 50% */ 73 #define PDAUDIOCF_REDDUTY1 (1<<11) /* 02 = 25%, 11 = 12% */ 74 #define PDAUDIOCF_BLUESDD (1<<12) /* blue LED against SDD bit */ 75 #define PDAUDIOCF_BLUEMODULATE (1<<13) /* save power when 100% duty cycle selected */ 76 #define PDAUDIOCF_REDMODULATE (1<<14) /* save power when 100% duty cycle selected */ 77 #define PDAUDIOCF_HALFRATE (1<<15) /* slow both LED blinks by half (also spdif detect rate) */ 78 79 /* chip status */ 80 #define PDAUDIOCF_STAT_IS_STALE (1<<0) 81 #define PDAUDIOCF_STAT_IS_CONFIGURED (1<<1) 82 #define PDAUDIOCF_STAT_IS_SUSPENDED (1<<2) 83 84 struct snd_pdacf { 85 struct snd_card *card; 86 int index; 87 88 unsigned long port; 89 int irq; 90 91 struct mutex reg_lock; 92 unsigned short regmap[8]; 93 unsigned short suspend_reg_scr; 94 95 spinlock_t ak4117_lock; 96 struct ak4117 *ak4117; 97 98 unsigned int chip_status; 99 100 struct snd_pcm *pcm; 101 struct snd_pcm_substream *pcm_substream; 102 unsigned int pcm_running: 1; 103 unsigned int pcm_channels; 104 unsigned int pcm_swab; 105 unsigned int pcm_little; 106 unsigned int pcm_frame; 107 unsigned int pcm_sample; 108 unsigned int pcm_xor; 109 unsigned int pcm_size; 110 unsigned int pcm_period; 111 unsigned int pcm_tdone; 112 unsigned int pcm_hwptr; 113 void *pcm_area; 114 115 /* pcmcia stuff */ 116 struct pcmcia_device *p_dev; 117 }; 118 119 static inline void pdacf_reg_write(struct snd_pdacf *chip, unsigned char reg, unsigned short val) 120 { 121 outw(chip->regmap[reg>>1] = val, chip->port + reg); 122 } 123 124 static inline unsigned short pdacf_reg_read(struct snd_pdacf *chip, unsigned char reg) 125 { 126 return inw(chip->port + reg); 127 } 128 129 struct snd_pdacf *snd_pdacf_create(struct snd_card *card); 130 int snd_pdacf_ak4117_create(struct snd_pdacf *pdacf); 131 void snd_pdacf_powerdown(struct snd_pdacf *chip); 132 #ifdef CONFIG_PM 133 int snd_pdacf_suspend(struct snd_pdacf *chip); 134 int snd_pdacf_resume(struct snd_pdacf *chip); 135 #endif 136 int snd_pdacf_pcm_new(struct snd_pdacf *chip); 137 irqreturn_t pdacf_interrupt(int irq, void *dev); 138 irqreturn_t pdacf_threaded_irq(int irq, void *dev); 139 void pdacf_reinit(struct snd_pdacf *chip, int resume); 140 141 #endif /* __PDAUDIOCF_H */ 142