sound/pcmcia/pdaudiocf/pdaudiocf.h

   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 <asm/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         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
 120 static 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
 125 static inline unsigned short pdacf_reg_read(struct snd_pdacf *chip, unsigned char reg)
 126 {
 127         return inw(chip->port + reg);
 128 }
 129
 130 struct snd_pdacf *snd_pdacf_create(struct snd_card *card);
 131 int snd_pdacf_ak4117_create(struct snd_pdacf *pdacf);
 132 void snd_pdacf_powerdown(struct snd_pdacf *chip);
 133 #ifdef CONFIG_PM
 134 int snd_pdacf_suspend(struct snd_pdacf *chip, pm_message_t state);
 135 int snd_pdacf_resume(struct snd_pdacf *chip);
 136 #endif
 137 int snd_pdacf_pcm_new(struct snd_pdacf *chip);
 138 irqreturn_t pdacf_interrupt(int irq, void *dev);
 139 void pdacf_tasklet(unsigned long private_data);
 140 void pdacf_reinit(struct snd_pdacf *chip, int resume);
 141
 142 #endif /* __PDAUDIOCF_H */