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 84struct snd_pdacf { 85 struct snd_card *card; 86 int index; 87 88 unsigned long port; 89 int irq; 90 91 spinlock_t reg_lock; 92 unsigned short regmap[8]; 93 unsigned short suspend_reg_scr; 94 struct tasklet_struct tq; 95 96 spinlock_t ak4117_lock; 97 struct ak4117 *ak4117; 98 99 unsigned int chip_status; 100 101 struct snd_pcm *pcm; 102 struct snd_pcm_substream *pcm_substream; 103 unsigned int pcm_running: 1; 104 unsigned int pcm_channels; 105 unsigned int pcm_swab; 106 unsigned int pcm_little; 107 unsigned int pcm_frame; 108 unsigned int pcm_sample; 109 unsigned int pcm_xor; 110 unsigned int pcm_size; 111 unsigned int pcm_period; 112 unsigned int pcm_tdone; 113 unsigned int pcm_hwptr; 114 void *pcm_area; 115 116 /* pcmcia stuff */ 117 struct pcmcia_device *p_dev; 118}; 119 120static inline void pdacf_reg_write(struct snd_pdacf *chip, unsigned char reg, unsigned short val) 121{ 122 outw(chip->regmap[reg>>1] = val, chip->port + reg); 123} 124 125static inline unsigned short pdacf_reg_read(struct snd_pdacf *chip, unsigned char reg) 126{ 127 return inw(chip->port + reg); 128} 129 130struct snd_pdacf *snd_pdacf_create(struct snd_card *card); 131int snd_pdacf_ak4117_create(struct snd_pdacf *pdacf); 132void snd_pdacf_powerdown(struct snd_pdacf *chip); 133#ifdef CONFIG_PM 134int snd_pdacf_suspend(struct snd_pdacf *chip, pm_message_t state); 135int snd_pdacf_resume(struct snd_pdacf *chip); 136#endif 137int snd_pdacf_pcm_new(struct snd_pdacf *chip); 138irqreturn_t pdacf_interrupt(int irq, void *dev); 139void pdacf_tasklet(unsigned long private_data); 140void pdacf_reinit(struct snd_pdacf *chip, int resume); 141 142#endif /* __PDAUDIOCF_H */ 143