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TOMOYO Linux Cross Reference
Linux/sound/pcmcia/pdaudiocf/pdaudiocf.h

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  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 

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