ad1816.c
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上传日期:2013-02-24
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- /*
- *
- * AD1816 lowlevel sound driver for Linux 2.2.0 and above
- *
- * Copyright (C) 1998 by Thorsten Knabe <tek@rbg.informatik.tu-darmstadt.de>
- *
- * Based on the CS4232/AD1848 driver Copyright (C) by Hannu Savolainen 1993-1996
- *
- *
- * version: 1.3.1
- * status: experimental
- * date: 1999/4/18
- *
- * Changes:
- * Oleg Drokin: Some cleanup of load/unload functions. 1998/11/24
- *
- * Thorsten Knabe: attach and unload rewritten,
- * some argument checks added 1998/11/30
- *
- * Thorsten Knabe: Buggy isa bridge workaround added 1999/01/16
- *
- * David Moews/Thorsten Knabe: Introduced options
- * parameter. Added slightly modified patch from
- * David Moews to disable dsp audio sources by setting
- * bit 0 of options parameter. This seems to be
- * required by some Aztech/Newcom SC-16 cards. 1999/04/18
- *
- * Christoph Hellwig: Adapted to module_init/module_exit. 2000/03/03
- *
- * Christoph Hellwig: Added isapnp support 2000/03/15
- *
- * Arnaldo Carvalho de Melo: get rid of check_region 2001/10/07
- */
- #include <linux/config.h>
- #include <linux/module.h>
- #include <linux/init.h>
- #include <linux/isapnp.h>
- #include <linux/stddef.h>
- #include "sound_config.h"
- #define DEBUGNOISE(x)
- #define DEBUGINFO(x)
- #define DEBUGLOG(x)
- #define DEBUGWARN(x)
- #define CHECK_FOR_POWER { int timeout=100;
- while (timeout > 0 && (inb(devc->base)&0x80)!= 0x80) {
- timeout--;
- }
- if (timeout==0) {
- printk(KERN_WARNING "ad1816: Check for power failed in %s line: %dn",__FILE__,__LINE__);
- }
- }
- /* structure to hold device specific information */
- typedef struct
- {
- int base; /* set in attach */
- int irq;
- int dma_playback;
- int dma_capture;
-
- int speed; /* open */
- int channels;
- int audio_format;
- unsigned char format_bits;
- int audio_mode;
- int opened;
-
- int recmask; /* setup */
- int supported_devices;
- int supported_rec_devices;
- unsigned short levels[SOUND_MIXER_NRDEVICES];
- int dev_no; /* this is the # in audio_devs and NOT
- in ad1816_info */
- int irq_ok;
- int *osp;
-
- } ad1816_info;
- static int nr_ad1816_devs;
- static int ad1816_clockfreq = 33000;
- static int options;
- /* for backward mapping of irq to sound device */
- static volatile char irq2dev[17] = {-1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1};
- /* supported audio formats */
- static int ad_format_mask =
- AFMT_U8 | AFMT_S16_LE | AFMT_S16_BE | AFMT_MU_LAW | AFMT_A_LAW;
- /* array of device info structures */
- static ad1816_info dev_info[MAX_AUDIO_DEV];
- /* ------------------------------------------------------------------- */
- /* functions for easier access to inderect registers */
- static int ad_read (ad1816_info * devc, int reg)
- {
- unsigned long flags;
- int result;
-
- CHECK_FOR_POWER;
- save_flags (flags); /* make register access atomic */
- cli ();
- outb ((unsigned char) (reg & 0x3f), devc->base+0);
- result = inb(devc->base+2);
- result+= inb(devc->base+3)<<8;
- restore_flags (flags);
-
- return (result);
- }
- static void ad_write (ad1816_info * devc, int reg, int data)
- {
- unsigned long flags;
-
- CHECK_FOR_POWER;
-
- save_flags (flags); /* make register access atomic */
- cli ();
- outb ((unsigned char) (reg & 0xff), devc->base+0);
- outb ((unsigned char) (data & 0xff),devc->base+2);
- outb ((unsigned char) ((data>>8)&0xff),devc->base+3);
- restore_flags (flags);
- }
- /* ------------------------------------------------------------------- */
- /* function interface required by struct audio_driver */
- static void ad1816_halt_input (int dev)
- {
- unsigned long flags;
- ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
- unsigned char buffer;
-
- DEBUGINFO (printk("ad1816: halt_input calledn"));
-
- save_flags (flags);
- cli ();
-
- if(!isa_dma_bridge_buggy) {
- disable_dma(audio_devs[dev]->dmap_in->dma);
- }
-
- buffer=inb(devc->base+9);
- if (buffer & 0x01) {
- /* disable capture */
- outb(buffer & ~0x01,devc->base+9);
- }
- if(!isa_dma_bridge_buggy) {
- enable_dma(audio_devs[dev]->dmap_in->dma);
- }
- /* Clear interrupt status */
- outb (~0x40, devc->base+1);
-
- devc->audio_mode &= ~PCM_ENABLE_INPUT;
- restore_flags (flags);
- }
- static void ad1816_halt_output (int dev)
- {
- unsigned long flags;
- ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
-
- unsigned char buffer;
- DEBUGINFO (printk("ad1816: halt_output called!n"));
- save_flags (flags);
- cli ();
- /* Mute pcm output */
- ad_write(devc, 4, ad_read(devc,4)|0x8080);
- if(!isa_dma_bridge_buggy) {
- disable_dma(audio_devs[dev]->dmap_out->dma);
- }
- buffer=inb(devc->base+8);
- if (buffer & 0x01) {
- /* disable capture */
- outb(buffer & ~0x01,devc->base+8);
- }
- if(!isa_dma_bridge_buggy) {
- enable_dma(audio_devs[dev]->dmap_out->dma);
- }
- /* Clear interrupt status */
- outb ((unsigned char)~0x80, devc->base+1);
- devc->audio_mode &= ~PCM_ENABLE_OUTPUT;
- restore_flags (flags);
- }
- static void ad1816_output_block (int dev, unsigned long buf,
- int count, int intrflag)
- {
- unsigned long flags;
- unsigned long cnt;
- ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
-
- DEBUGINFO(printk("ad1816: output_block called buf=%ld count=%d flags=%dn",buf,count,intrflag));
-
- cnt = count/4 - 1;
-
- save_flags (flags);
- cli ();
-
- /* set transfer count */
- ad_write (devc, 8, cnt & 0xffff);
-
- devc->audio_mode |= PCM_ENABLE_OUTPUT;
- restore_flags (flags);
- }
- static void ad1816_start_input (int dev, unsigned long buf, int count,
- int intrflag)
- {
- unsigned long flags;
- unsigned long cnt;
- ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
-
- DEBUGINFO(printk("ad1816: start_input called buf=%ld count=%d flags=%dn",buf,count,intrflag));
- cnt = count/4 - 1;
- save_flags (flags); /* make register access atomic */
- cli ();
- /* set transfer count */
- ad_write (devc, 10, cnt & 0xffff);
- devc->audio_mode |= PCM_ENABLE_INPUT;
- restore_flags (flags);
- }
- static int ad1816_prepare_for_input (int dev, int bsize, int bcount)
- {
- unsigned long flags;
- unsigned int freq;
- ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
- unsigned char fmt_bits;
-
- DEBUGINFO (printk ("ad1816: prepare_for_input called: bsize=%d bcount=%dn",bsize,bcount));
- save_flags (flags);
- cli ();
-
- fmt_bits= (devc->format_bits&0x7)<<3;
-
- /* set mono/stereo mode */
- if (devc->channels > 1) {
- fmt_bits |=0x4;
- }
- /* set Mono/Stereo in playback/capture register */
- outb( (inb(devc->base+8) & ~0x3C)|fmt_bits, devc->base+8);
- outb( (inb(devc->base+9) & ~0x3C)|fmt_bits, devc->base+9);
-
- /* If compiled into kernel, AD1816_CLOCK is defined, so use it */
- #ifdef AD1816_CLOCK
- ad1816_clockfreq=AD1816_CLOCK;
- #endif
- /* capture/playback frequency correction for soundcards
- with clock chips != 33MHz (allowed range 5 - 100 kHz) */
- if (ad1816_clockfreq<5000 || ad1816_clockfreq>100000) {
- ad1816_clockfreq=33000;
- }
-
- freq=((unsigned int)devc->speed*33000)/ad1816_clockfreq;
- /* write playback/capture speeds */
- ad_write (devc, 2, freq & 0xffff);
- ad_write (devc, 3, freq & 0xffff);
- restore_flags (flags);
- ad1816_halt_input(dev);
- return 0;
- }
- static int ad1816_prepare_for_output (int dev, int bsize, int bcount)
- {
- unsigned long flags;
- unsigned int freq;
- ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
- unsigned char fmt_bits;
- DEBUGINFO (printk ("ad1816: prepare_for_output called: bsize=%d bcount=%dn",bsize,bcount));
- save_flags (flags); /* make register access atomic */
- cli ();
- fmt_bits= (devc->format_bits&0x7)<<3;
- /* set mono/stereo mode */
- if (devc->channels > 1) {
- fmt_bits |=0x4;
- }
- /* write format bits to playback/capture registers */
- outb( (inb(devc->base+8) & ~0x3C)|fmt_bits, devc->base+8);
- outb( (inb(devc->base+9) & ~0x3C)|fmt_bits, devc->base+9);
-
- #ifdef AD1816_CLOCK
- ad1816_clockfreq=AD1816_CLOCK;
- #endif
- /* capture/playback frequency correction for soundcards
- with clock chips != 33MHz (allowed range 5 - 100 kHz)*/
- if (ad1816_clockfreq<5000 || ad1816_clockfreq>100000) {
- ad1816_clockfreq=33000;
- }
-
- freq=((unsigned int)devc->speed*33000)/ad1816_clockfreq;
-
- /* write playback/capture speeds */
- ad_write (devc, 2, freq & 0xffff);
- ad_write (devc, 3, freq & 0xffff);
- restore_flags (flags);
-
- ad1816_halt_output(dev);
- return 0;
- }
- static void ad1816_trigger (int dev, int state)
- {
- unsigned long flags;
- ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
- DEBUGINFO (printk("ad1816: trigger called! (devc=%d,devc->base=%dn", devc, devc->base));
- /* mode may have changed */
- save_flags (flags); /* make register access atomic */
- cli ();
- /* mask out modes not specified on open call */
- state &= devc->audio_mode;
-
- /* setup soundchip to new io-mode */
- if (state & PCM_ENABLE_INPUT) {
- /* enable capture */
- outb(inb(devc->base+9)|0x01, devc->base+9);
- } else {
- /* disable capture */
- outb(inb(devc->base+9)&~0x01, devc->base+9);
- }
- if (state & PCM_ENABLE_OUTPUT) {
- /* enable playback */
- outb(inb(devc->base+8)|0x01, devc->base+8);
- /* unmute pcm output */
- ad_write(devc, 4, ad_read(devc,4)&~0x8080);
- } else {
- /* mute pcm output */
- ad_write(devc, 4, ad_read(devc,4)|0x8080);
- /* disable capture */
- outb(inb(devc->base+8)&~0x01, devc->base+8);
- }
- restore_flags (flags);
- }
- /* halt input & output */
- static void ad1816_halt (int dev)
- {
- ad1816_halt_input(dev);
- ad1816_halt_output(dev);
- }
- static void ad1816_reset (int dev)
- {
- ad1816_halt (dev);
- }
- /* set playback speed */
- static int ad1816_set_speed (int dev, int arg)
- {
- ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
-
- if (arg == 0) {
- return devc->speed;
- }
- /* range checking */
- if (arg < 4000) {
- arg = 4000;
- }
- if (arg > 55000) {
- arg = 55000;
- }
- devc->speed = arg;
- return devc->speed;
- }
- static unsigned int ad1816_set_bits (int dev, unsigned int arg)
- {
- ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
-
- static struct format_tbl {
- int format;
- unsigned char bits;
- } format2bits[] = {
- { 0, 0 },
- { AFMT_MU_LAW, 1 },
- { AFMT_A_LAW, 3 },
- { AFMT_IMA_ADPCM, 0 },
- { AFMT_U8, 0 },
- { AFMT_S16_LE, 2 },
- { AFMT_S16_BE, 6 },
- { AFMT_S8, 0 },
- { AFMT_U16_LE, 0 },
- { AFMT_U16_BE, 0 }
- };
- int i, n = sizeof (format2bits) / sizeof (struct format_tbl);
- /* return current format */
- if (arg == 0)
- return devc->audio_format;
-
- devc->audio_format = arg;
- /* search matching format bits */
- for (i = 0; i < n; i++)
- if (format2bits[i].format == arg) {
- devc->format_bits = format2bits[i].bits;
- devc->audio_format = arg;
- return arg;
- }
- /* Still hanging here. Something must be terribly wrong */
- devc->format_bits = 0;
- return devc->audio_format = AFMT_U8;
- }
- static short ad1816_set_channels (int dev, short arg)
- {
- ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
- if (arg != 1 && arg != 2)
- return devc->channels;
- devc->channels = arg;
- return arg;
- }
- /* open device */
- static int ad1816_open (int dev, int mode)
- {
- ad1816_info *devc = NULL;
- unsigned long flags;
- /* is device number valid ? */
- if (dev < 0 || dev >= num_audiodevs)
- return -(ENXIO);
- /* get device info of this dev */
- devc = (ad1816_info *) audio_devs[dev]->devc;
- /* make check if device already open atomic */
- save_flags (flags);
- cli ();
- if (devc->opened) {
- restore_flags (flags);
- return -(EBUSY);
- }
- /* mark device as open */
- devc->opened = 1;
- devc->audio_mode = 0;
- devc->speed = 8000;
- devc->audio_format=AFMT_U8;
- devc->channels=1;
- ad1816_reset(devc->dev_no); /* halt all pending output */
- restore_flags (flags);
- return 0;
- }
- static void ad1816_close (int dev) /* close device */
- {
- unsigned long flags;
- ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
- save_flags (flags);
- cli ();
- /* halt all pending output */
- ad1816_reset(devc->dev_no);
-
- devc->opened = 0;
- devc->audio_mode = 0;
- devc->speed = 8000;
- devc->audio_format=AFMT_U8;
- devc->format_bits = 0;
- restore_flags (flags);
- }
- /* ------------------------------------------------------------------- */
- /* Audio driver structure */
- static struct audio_driver ad1816_audio_driver =
- {
- owner: THIS_MODULE,
- open: ad1816_open,
- close: ad1816_close,
- output_block: ad1816_output_block,
- start_input: ad1816_start_input,
- prepare_for_input: ad1816_prepare_for_input,
- prepare_for_output: ad1816_prepare_for_output,
- halt_io: ad1816_halt,
- halt_input: ad1816_halt_input,
- halt_output: ad1816_halt_output,
- trigger: ad1816_trigger,
- set_speed: ad1816_set_speed,
- set_bits: ad1816_set_bits,
- set_channels: ad1816_set_channels,
- };
- /* ------------------------------------------------------------------- */
- /* Interrupt handler */
- static void ad1816_interrupt (int irq, void *dev_id, struct pt_regs *dummy)
- {
- unsigned char status;
- ad1816_info *devc;
- int dev;
- unsigned long flags;
-
- if (irq < 0 || irq > 15) {
- printk(KERN_WARNING "ad1816: Got bogus interrupt %dn", irq);
- return;
- }
- dev = irq2dev[irq];
-
- if (dev < 0 || dev >= num_audiodevs) {
- printk(KERN_WARNING "ad1816: IRQ2AD1816-mapping failed for "
- "irq %d device %dn", irq,dev);
- return;
- }
- devc = (ad1816_info *) audio_devs[dev]->devc;
-
- save_flags(flags);
- cli();
- /* read interrupt register */
- status = inb (devc->base+1);
- /* Clear all interrupt */
- outb (~status, devc->base+1);
- DEBUGNOISE (printk("ad1816: Got interrupt subclass %dn",status));
-
- devc->irq_ok=1;
- if (status == 0)
- DEBUGWARN(printk ("ad1816: interrupt: Got interrupt, but no reason?n"));
- if (devc->opened && (devc->audio_mode & PCM_ENABLE_INPUT) && (status&64))
- DMAbuf_inputintr (dev);
- if (devc->opened && (devc->audio_mode & PCM_ENABLE_OUTPUT) && (status & 128))
- DMAbuf_outputintr (dev, 1);
- restore_flags(flags);
- }
- /* ------------------------------------------------------------------- */
- /* Mixer stuff */
- struct mixer_def {
- unsigned int regno: 7;
- unsigned int polarity:1; /* 0=normal, 1=reversed */
- unsigned int bitpos:4;
- unsigned int nbits:4;
- };
- static char mix_cvt[101] = {
- 0, 0, 3, 7,10,13,16,19,21,23,26,28,30,32,34,35,37,39,40,42,
- 43,45,46,47,49,50,51,52,53,55,56,57,58,59,60,61,62,63,64,65,
- 65,66,67,68,69,70,70,71,72,73,73,74,75,75,76,77,77,78,79,79,
- 80,81,81,82,82,83,84,84,85,85,86,86,87,87,88,88,89,89,90,90,
- 91,91,92,92,93,93,94,94,95,95,96,96,96,97,97,98,98,98,99,99,
- 100
- };
- typedef struct mixer_def mixer_ent;
- /*
- * Most of the mixer entries work in backwards. Setting the polarity field
- * makes them to work correctly.
- *
- * The channel numbering used by individual soundcards is not fixed. Some
- * cards have assigned different meanings for the AUX1, AUX2 and LINE inputs.
- * The current version doesn't try to compensate this.
- */
- #define MIX_ENT(name, reg_l, pola_l, pos_l, len_l, reg_r, pola_r, pos_r, len_r)
- {{reg_l, pola_l, pos_l, len_l}, {reg_r, pola_r, pos_r, len_r}}
- mixer_ent mix_devices[SOUND_MIXER_NRDEVICES][2] = {
- MIX_ENT(SOUND_MIXER_VOLUME, 14, 1, 8, 5, 14, 1, 0, 5),
- MIX_ENT(SOUND_MIXER_BASS, 0, 0, 0, 0, 0, 0, 0, 0),
- MIX_ENT(SOUND_MIXER_TREBLE, 0, 0, 0, 0, 0, 0, 0, 0),
- MIX_ENT(SOUND_MIXER_SYNTH, 5, 1, 8, 6, 5, 1, 0, 6),
- MIX_ENT(SOUND_MIXER_PCM, 4, 1, 8, 6, 4, 1, 0, 6),
- MIX_ENT(SOUND_MIXER_SPEAKER, 0, 0, 0, 0, 0, 0, 0, 0),
- MIX_ENT(SOUND_MIXER_LINE, 18, 1, 8, 5, 18, 1, 0, 5),
- MIX_ENT(SOUND_MIXER_MIC, 19, 1, 8, 5, 19, 1, 0, 5),
- MIX_ENT(SOUND_MIXER_CD, 15, 1, 8, 5, 15, 1, 0, 5),
- MIX_ENT(SOUND_MIXER_IMIX, 0, 0, 0, 0, 0, 0, 0, 0),
- MIX_ENT(SOUND_MIXER_ALTPCM, 0, 0, 0, 0, 0, 0, 0, 0),
- MIX_ENT(SOUND_MIXER_RECLEV, 20, 0, 8, 4, 20, 0, 0, 4),
- MIX_ENT(SOUND_MIXER_IGAIN, 0, 0, 0, 0, 0, 0, 0, 0),
- MIX_ENT(SOUND_MIXER_OGAIN, 0, 0, 0, 0, 0, 0, 0, 0),
- MIX_ENT(SOUND_MIXER_LINE1, 17, 1, 8, 5, 17, 1, 0, 5),
- MIX_ENT(SOUND_MIXER_LINE2, 16, 1, 8, 5, 16, 1, 0, 5),
- MIX_ENT(SOUND_MIXER_LINE3, 39, 0, 9, 4, 39, 1, 0, 5)
- };
- static unsigned short default_mixer_levels[SOUND_MIXER_NRDEVICES] =
- {
- 0x4343, /* Master Volume */
- 0x3232, /* Bass */
- 0x3232, /* Treble */
- 0x0000, /* FM */
- 0x4343, /* PCM */
- 0x0000, /* PC Speaker */
- 0x0000, /* Ext Line */
- 0x0000, /* Mic */
- 0x0000, /* CD */
- 0x0000, /* Recording monitor */
- 0x0000, /* SB PCM */
- 0x0000, /* Recording level */
- 0x0000, /* Input gain */
- 0x0000, /* Output gain */
- 0x0000, /* Line1 */
- 0x0000, /* Line2 */
- 0x0000 /* Line3 (usually line in)*/
- };
- #define LEFT_CHN 0
- #define RIGHT_CHN 1
- static int
- ad1816_set_recmask (ad1816_info * devc, int mask)
- {
- unsigned char recdev;
- int i, n;
-
- mask &= devc->supported_rec_devices;
-
- n = 0;
- /* Count selected device bits */
- for (i = 0; i < 32; i++)
- if (mask & (1 << i))
- n++;
-
- if (n == 0)
- mask = SOUND_MASK_MIC;
- else if (n != 1) { /* Too many devices selected */
- /* Filter out active settings */
- mask &= ~devc->recmask;
-
- n = 0;
- /* Count selected device bits */
- for (i = 0; i < 32; i++)
- if (mask & (1 << i))
- n++;
-
- if (n != 1)
- mask = SOUND_MASK_MIC;
- }
-
- switch (mask) {
- case SOUND_MASK_MIC:
- recdev = 5;
- break;
-
- case SOUND_MASK_LINE:
- recdev = 0;
- break;
-
- case SOUND_MASK_CD:
- recdev = 2;
- break;
-
- case SOUND_MASK_LINE1:
- recdev = 4;
- break;
-
- case SOUND_MASK_LINE2:
- recdev = 3;
- break;
-
- case SOUND_MASK_VOLUME:
- recdev = 1;
- break;
-
- default:
- mask = SOUND_MASK_MIC;
- recdev = 5;
- }
-
- recdev <<= 4;
- ad_write (devc, 20,
- (ad_read (devc, 20) & 0x8f8f) | recdev | (recdev<<8));
- devc->recmask = mask;
- return mask;
- }
- static void
- change_bits (int *regval, int dev, int chn, int newval)
- {
- unsigned char mask;
- int shift;
-
- /* Reverse polarity*/
- if (mix_devices[dev][chn].polarity == 1)
- newval = 100 - newval;
- mask = (1 << mix_devices[dev][chn].nbits) - 1;
- shift = mix_devices[dev][chn].bitpos;
- /* Scale it */
- newval = (int) ((newval * mask) + 50) / 100;
- /* Clear bits */
- *regval &= ~(mask << shift);
- /* Set new value */
- *regval |= (newval & mask) << shift;
- }
- static int
- ad1816_mixer_get (ad1816_info * devc, int dev)
- {
- DEBUGINFO(printk("ad1816: mixer_get called!n"));
-
- /* range check + supported mixer check */
- if (dev < 0 || dev >= SOUND_MIXER_NRDEVICES )
- return (-(EINVAL));
- if (!((1 << dev) & devc->supported_devices))
- return -(EINVAL);
-
- return devc->levels[dev];
- }
- static int
- ad1816_mixer_set (ad1816_info * devc, int dev, int value)
- {
- int left = value & 0x000000ff;
- int right = (value & 0x0000ff00) >> 8;
- int retvol;
- int regoffs;
- int val;
- int valmute;
- DEBUGINFO(printk("ad1816: mixer_set called!n"));
-
- if (dev < 0 || dev >= SOUND_MIXER_NRDEVICES )
- return -(EINVAL);
- if (left > 100)
- left = 100;
- if (left < 0)
- left = 0;
- if (right > 100)
- right = 100;
- if (right < 0)
- right = 0;
-
- /* Mono control */
- if (mix_devices[dev][RIGHT_CHN].nbits == 0)
- right = left;
- retvol = left | (right << 8);
-
- /* Scale it */
-
- left = mix_cvt[left];
- right = mix_cvt[right];
- /* reject all mixers that are not supported */
- if (!(devc->supported_devices & (1 << dev)))
- return -(EINVAL);
-
- /* sanity check */
- if (mix_devices[dev][LEFT_CHN].nbits == 0)
- return -(EINVAL);
- /* keep precise volume internal */
- devc->levels[dev] = retvol;
- /* Set the left channel */
- regoffs = mix_devices[dev][LEFT_CHN].regno;
- val = ad_read (devc, regoffs);
- change_bits (&val, dev, LEFT_CHN, left);
- valmute=val;
- /* Mute bit masking on some registers */
- if ( regoffs==5 || regoffs==14 || regoffs==15 ||
- regoffs==16 || regoffs==17 || regoffs==18 ||
- regoffs==19 || regoffs==39) {
- if (left==0)
- valmute |= 0x8000;
- else
- valmute &= ~0x8000;
- }
- ad_write (devc, regoffs, valmute); /* mute */
- /*
- * Set the right channel
- */
-
- /* Was just a mono channel */
- if (mix_devices[dev][RIGHT_CHN].nbits == 0)
- return retvol;
- regoffs = mix_devices[dev][RIGHT_CHN].regno;
- val = ad_read (devc, regoffs);
- change_bits (&val, dev, RIGHT_CHN, right);
- valmute=val;
- if ( regoffs==5 || regoffs==14 || regoffs==15 ||
- regoffs==16 || regoffs==17 || regoffs==18 ||
- regoffs==19 || regoffs==39) {
- if (right==0)
- valmute |= 0x80;
- else
- valmute &= ~0x80;
- }
- ad_write (devc, regoffs, valmute); /* mute */
-
- return retvol;
- }
- #define MIXER_DEVICES ( SOUND_MASK_VOLUME |
- SOUND_MASK_SYNTH |
- SOUND_MASK_PCM |
- SOUND_MASK_LINE |
- SOUND_MASK_LINE1 |
- SOUND_MASK_LINE2 |
- SOUND_MASK_LINE3 |
- SOUND_MASK_MIC |
- SOUND_MASK_CD |
- SOUND_MASK_RECLEV
- )
- #define REC_DEVICES ( SOUND_MASK_LINE2 |
- SOUND_MASK_LINE |
- SOUND_MASK_LINE1 |
- SOUND_MASK_MIC |
- SOUND_MASK_CD |
- SOUND_MASK_VOLUME
- )
-
- static void
- ad1816_mixer_reset (ad1816_info * devc)
- {
- int i;
- devc->supported_devices = MIXER_DEVICES;
-
- devc->supported_rec_devices = REC_DEVICES;
- for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
- if (devc->supported_devices & (1 << i))
- ad1816_mixer_set (devc, i, default_mixer_levels[i]);
- ad1816_set_recmask (devc, SOUND_MASK_MIC);
- }
- static int
- ad1816_mixer_ioctl (int dev, unsigned int cmd, caddr_t arg)
- {
- ad1816_info *devc = mixer_devs[dev]->devc;
- int val;
-
- DEBUGINFO(printk("ad1816: mixer_ioctl called!n"));
-
- /* Mixer ioctl */
- if (((cmd >> 8) & 0xff) == 'M') {
-
- /* set ioctl */
- if (_SIOC_DIR (cmd) & _SIOC_WRITE) {
- switch (cmd & 0xff){
- case SOUND_MIXER_RECSRC:
-
- if (get_user(val, (int *)arg))
- return -EFAULT;
- val=ad1816_set_recmask (devc, val);
- return put_user(val, (int *)arg);
- break;
-
- default:
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if ((val=ad1816_mixer_set (devc, cmd & 0xff, val))<0)
- return val;
- else
- return put_user(val, (int *)arg);
- }
- } else {
- /* read ioctl */
- switch (cmd & 0xff) {
-
- case SOUND_MIXER_RECSRC:
- val=devc->recmask;
- return put_user(val, (int *)arg);
- break;
-
- case SOUND_MIXER_DEVMASK:
- val=devc->supported_devices;
- return put_user(val, (int *)arg);
- break;
- case SOUND_MIXER_STEREODEVS:
- val=devc->supported_devices & ~(SOUND_MASK_SPEAKER | SOUND_MASK_IMIX);
- return put_user(val, (int *)arg);
- break;
-
- case SOUND_MIXER_RECMASK:
- val=devc->supported_rec_devices;
- return put_user(val, (int *)arg);
- break;
-
- case SOUND_MIXER_CAPS:
- val=SOUND_CAP_EXCL_INPUT;
- return put_user(val, (int *)arg);
- break;
-
- default:
- if ((val=ad1816_mixer_get (devc, cmd & 0xff))<0)
- return val;
- else
- return put_user(val, (int *)arg);
- }
- }
- } else
- /* not for mixer */
- return -(EINVAL);
- }
- /* ------------------------------------------------------------------- */
- /* Mixer structure */
- static struct mixer_operations ad1816_mixer_operations = {
- owner: THIS_MODULE,
- id: "AD1816",
- name: "AD1816 Mixer",
- ioctl: ad1816_mixer_ioctl
- };
- /* ------------------------------------------------------------------- */
- /* stuff for card recognition, init and unloading */
- /* replace with probe routine */
- static int __init probe_ad1816 ( struct address_info *hw_config )
- {
- ad1816_info *devc = &dev_info[nr_ad1816_devs];
- int io_base=hw_config->io_base;
- int *osp=hw_config->osp;
- int tmp;
- printk(KERN_INFO "ad1816: AD1816 sounddriver "
- "Copyright (C) 1998 by Thorsten Knaben");
- printk(KERN_INFO "ad1816: io=0x%x, irq=%d, dma=%d, dma2=%d, "
- "clockfreq=%d, options=%d isadmabug=%dn",
- hw_config->io_base,
- hw_config->irq,
- hw_config->dma,
- hw_config->dma2,
- ad1816_clockfreq,
- options,
- isa_dma_bridge_buggy);
- if (!request_region(io_base, 16, "AD1816 Sound")) {
- printk(KERN_WARNING "ad1816: I/O port 0x%03x not freen",
- io_base);
- goto err;
- }
- DEBUGLOG(printk ("ad1816: detect(%x)n", io_base));
-
- if (nr_ad1816_devs >= MAX_AUDIO_DEV) {
- printk(KERN_WARNING "ad1816: detect error - step 0n");
- goto out_release_region;
- }
- devc->base = io_base;
- devc->irq_ok = 0;
- devc->irq = 0;
- devc->opened = 0;
- devc->osp = osp;
- /* base+0: bit 1 must be set but not 255 */
- tmp=inb(devc->base);
- if ( (tmp&0x80)==0 || tmp==255 ) {
- DEBUGLOG (printk ("ad1816: Chip is not an AD1816 or chip is not active (Test 0)n"));
- goto out_release_region;
- }
- /* writes to ireg 8 are copied to ireg 9 */
- ad_write(devc,8,12345);
- if (ad_read(devc,9)!=12345) {
- DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 1)n"));
- goto out_release_region;
- }
-
- /* writes to ireg 8 are copied to ireg 9 */
- ad_write(devc,8,54321);
- if (ad_read(devc,9)!=54321) {
- DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 2)n"));
- goto out_release_region;
- }
- /* writes to ireg 10 are copied to ireg 11 */
- ad_write(devc,10,54321);
- if (ad_read(devc,11)!=54321) {
- DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 3)n"));
- goto out_release_region;
- }
- /* writes to ireg 10 are copied to ireg 11 */
- ad_write(devc,10,12345);
- if (ad_read(devc,11)!=12345) {
- DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 4)n"));
- goto out_release_region;
- }
- /* bit in base +1 cannot be set to 1 */
- tmp=inb(devc->base+1);
- outb(0xff,devc->base+1);
- if (inb(devc->base+1)!=tmp) {
- DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 5)n"));
- goto out_release_region;
- }
-
- DEBUGLOG (printk ("ad1816: detect() - Detected OKn"));
- DEBUGLOG (printk ("ad1816: AD1816 Version: %dn",ad_read(devc,45)));
- /* detection was successful */
- return 1;
- out_release_region:
- release_region(io_base, 16);
- /* detection was NOT successful */
- err: return 0;
- }
- /* allocate resources from the kernel. If any allocation fails, free
- all allocated resources and exit attach.
-
- */
- static void __init attach_ad1816 (struct address_info *hw_config)
- {
- int my_dev;
- char dev_name[100];
- ad1816_info *devc = &dev_info[nr_ad1816_devs];
- devc->base = hw_config->io_base;
- /* disable all interrupts */
- ad_write(devc,1,0);
- /* Clear pending interrupts */
- outb (0, devc->base+1);
- /* allocate irq */
- if (hw_config->irq < 0 || hw_config->irq > 15)
- goto out_release_region;
- if (request_irq(hw_config->irq, ad1816_interrupt,0,
- "SoundPort", hw_config->osp) < 0) {
- printk(KERN_WARNING "ad1816: IRQ in usen");
- goto out_release_region;
- }
- devc->irq=hw_config->irq;
- /* DMA stuff */
- if (sound_alloc_dma (hw_config->dma, "Sound System")) {
- printk(KERN_WARNING "ad1816: Can't allocate DMA%dn",
- hw_config->dma);
- goto out_free_irq;
- }
- devc->dma_playback=hw_config->dma;
-
- if ( hw_config->dma2 != -1 && hw_config->dma2 != hw_config->dma) {
- if (sound_alloc_dma(hw_config->dma2,
- "Sound System (capture)")) {
- printk(KERN_WARNING "ad1816: Can't allocate DMA%dn",
- hw_config->dma2);
- goto out_free_dma;
- }
- devc->dma_capture=hw_config->dma2;
- devc->audio_mode=DMA_AUTOMODE|DMA_DUPLEX;
- } else {
- devc->dma_capture=-1;
- devc->audio_mode=DMA_AUTOMODE;
- }
- sprintf (dev_name,"AD1816 audio driver");
-
- conf_printf2 (dev_name,
- devc->base, devc->irq, hw_config->dma, hw_config->dma2);
- /* register device */
- if ((my_dev = sound_install_audiodrv (AUDIO_DRIVER_VERSION,
- dev_name,
- &ad1816_audio_driver,
- sizeof (struct audio_driver),
- devc->audio_mode,
- ad_format_mask,
- devc,
- hw_config->dma,
- hw_config->dma2)) < 0) {
- printk(KERN_WARNING "ad1816: Can't install sound drivern");
- goto out_free_dma_2;
- }
- /* fill rest of structure with reasonable default values */
- irq2dev[hw_config->irq] = devc->dev_no = my_dev;
- devc->opened = 0;
- devc->irq_ok = 0;
- devc->osp = hw_config->osp;
- nr_ad1816_devs++;
- ad_write(devc,32,0x80f0); /* sound system mode */
- if (options&1) {
- ad_write(devc,33,0); /* disable all audiosources for dsp */
- } else {
- ad_write(devc,33,0x03f8); /* enable all audiosources for dsp */
- }
- ad_write(devc,4,0x8080); /* default values for volumes (muted)*/
- ad_write(devc,5,0x8080);
- ad_write(devc,6,0x8080);
- ad_write(devc,7,0x8080);
- ad_write(devc,15,0x8888);
- ad_write(devc,16,0x8888);
- ad_write(devc,17,0x8888);
- ad_write(devc,18,0x8888);
- ad_write(devc,19,0xc888); /* +20db mic active */
- ad_write(devc,14,0x0000); /* Master volume unmuted */
- ad_write(devc,39,0x009f); /* 3D effect on 0% phone out muted */
- ad_write(devc,44,0x0080); /* everything on power, 3d enabled for d/a */
- outb(0x10,devc->base+8); /* set dma mode */
- outb(0x10,devc->base+9);
-
- /* enable capture + playback interrupt */
- ad_write(devc,1,0xc000);
-
- /* set mixer defaults */
- ad1816_mixer_reset (devc);
-
- /* register mixer */
- if ((audio_devs[my_dev]->mixer_dev=sound_install_mixer(
- MIXER_DRIVER_VERSION,
- dev_name,
- &ad1816_mixer_operations,
- sizeof (struct mixer_operations),
- devc)) >= 0) {
- audio_devs[my_dev]->min_fragment = 0;
- }
- out: return;
- out_free_dma_2:
- if (devc->dma_capture >= 0)
- sound_free_dma(hw_config->dma2);
- out_free_dma:
- sound_free_dma(hw_config->dma);
- out_free_irq:
- free_irq(hw_config->irq,hw_config->osp);
- out_release_region:
- release_region(hw_config->io_base, 16);
- goto out;
- }
- static void __exit unload_card(ad1816_info *devc)
- {
- int mixer, dev = 0;
-
- if (devc != NULL) {
- DEBUGLOG (printk("ad1816: Unloading card at base=%xn",devc->base));
-
- dev = devc->dev_no;
- mixer = audio_devs[dev]->mixer_dev;
- /* unreg mixer*/
- if(mixer>=0) {
- sound_unload_mixerdev(mixer);
- }
- sound_unload_audiodev(dev);
-
- /* free dma channels */
- if (devc->dma_capture>=0) {
- sound_free_dma(devc->dma_capture);
- }
- /* card wont get added if resources could not be allocated
- thus we need not ckeck if allocation was successful */
- sound_free_dma (devc->dma_playback);
- free_irq(devc->irq, devc->osp);
- release_region (devc->base, 16);
-
- DEBUGLOG (printk("ad1816: Unloading card at base=%x was successfuln",devc->base));
-
- } else
- printk(KERN_WARNING "ad1816: no device/card specifiedn");
- }
- static struct address_info cfg;
- static int __initdata io = -1;
- static int __initdata irq = -1;
- static int __initdata dma = -1;
- static int __initdata dma2 = -1;
- #if defined CONFIG_ISAPNP || defined CONFIG_ISAPNP_MODULE
- struct pci_dev *ad1816_dev = NULL;
- static int activated = 1;
- static int isapnp = 1;
- static int isapnpjump = 0;
- MODULE_PARM(isapnp, "i");
- MODULE_PARM(isapnpjump, "i");
- #else
- static int isapnp = 0;
- #endif
- MODULE_PARM(io,"i");
- MODULE_PARM(irq,"i");
- MODULE_PARM(dma,"i");
- MODULE_PARM(dma2,"i");
- MODULE_PARM(ad1816_clockfreq,"i");
- MODULE_PARM(options,"i");
- #if defined CONFIG_ISAPNP || defined CONFIG_ISAPNP_MODULE
- static struct pci_dev *activate_dev(char *devname, char *resname, struct pci_dev *dev)
- {
- int err;
-
- if(dev->active) {
- activated = 0;
- return(dev);
- }
- if((err = dev->activate(dev)) < 0) {
- printk(KERN_ERR "ad1816: %s %s config failed (out of resources?)[%d]n",
- devname, resname, err);
- dev->deactivate(dev);
- return(NULL);
- }
-
- return(dev);
- }
- static struct pci_dev *ad1816_init_generic(struct pci_bus *bus, struct pci_dev *card,
- struct address_info *hw_config)
- {
- if((ad1816_dev = isapnp_find_dev(bus, card->vendor, card->device, NULL))) {
- ad1816_dev->prepare(ad1816_dev);
-
- if((ad1816_dev = activate_dev("Analog Devices 1816(A)", "ad1816", ad1816_dev))) {
- hw_config->io_base = ad1816_dev->resource[2].start;
- hw_config->irq = ad1816_dev->irq_resource[0].start;
- hw_config->dma = ad1816_dev->dma_resource[0].start;
- hw_config->dma2 = ad1816_dev->dma_resource[1].start;
- }
- }
-
- return(ad1816_dev);
- }
- static struct ad1816_data {
- struct pci_dev * (*initfunc)(struct pci_bus*, struct pci_dev *, struct address_info *);
- char *name;
- } ad1816_pnp_data[] __initdata = {
- { &ad1816_init_generic, "Analog Devices 1815" },
- { &ad1816_init_generic, "Analog Devices 1816A" }
- };
- static struct {
- unsigned short card_vendor, card_device;
- unsigned short vendor;
- unsigned short function;
- struct ad1816_data *data;
- } isapnp_ad1816_list[] __initdata = {
- { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
- ISAPNP_VENDOR('A','D','S'), ISAPNP_FUNCTION(0x7150),
- &ad1816_pnp_data[0] },
- { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
- ISAPNP_VENDOR('A','D','S'), ISAPNP_FUNCTION(0x7180),
- &ad1816_pnp_data[1] },
- {0}
- };
- MODULE_DEVICE_TABLE(isapnp, isapnp_ad1816_list);
- static int __init ad1816_init_isapnp(struct address_info *hw_config,
- struct pci_bus *bus, struct pci_dev *card, int slot)
- {
- struct pci_dev *idev = NULL;
-
- /* You missed the init func? That's bad. */
- if(isapnp_ad1816_list[slot].data->initfunc) {
- char *busname = bus->name[0] ? bus->name : isapnp_ad1816_list[slot].data->name;
-
- printk(KERN_INFO "ad1816: %s detectedn", busname);
-
- /* Initialize this baby. */
- if((idev = isapnp_ad1816_list[slot].data->initfunc(bus, card, hw_config))) {
- /* We got it. */
- printk(KERN_NOTICE "ad1816: ISAPnP reports '%s' at i/o %#x, irq %d, dma %d, %dn",
- busname,
- hw_config->io_base, hw_config->irq, hw_config->dma,
- hw_config->dma2);
- return 1;
- } else
- printk(KERN_INFO "ad1816: Failed to initialize %sn", busname);
- } else
- printk(KERN_ERR "ad1816: Bad entry in ad1816.c PnP tablen");
-
- return 0;
- }
- /*
- * Actually this routine will detect and configure only the first card with successful
- * initialization. isapnpjump could be used to jump to a specific entry.
- * Please always add entries at the end of the array.
- * Should this be fixed? - azummo
- */
- int __init ad1816_probe_isapnp(struct address_info *hw_config)
- {
- int i;
-
- /* Count entries in isapnp_ad1816_list */
- for (i = 0; isapnp_ad1816_list[i].vendor != 0; i++)
- ;
- /* Check and adjust isapnpjump */
- if( isapnpjump < 0 || isapnpjump > ( i - 1 ) ) {
- printk(KERN_ERR "ad1816: Valid range for isapnpjump is 0-%d. Adjusted to 0.n", i-1);
- isapnpjump = 0;
- }
- for (i = isapnpjump; isapnp_ad1816_list[i].vendor != 0; i++) {
- struct pci_dev *card = NULL;
-
- while ((card = isapnp_find_dev(NULL, isapnp_ad1816_list[i].vendor,
- isapnp_ad1816_list[i].function, card)))
- if(ad1816_init_isapnp(hw_config, card->bus, card, i))
- return 0;
- }
- return -ENODEV;
- }
- #endif
- static int __init init_ad1816(void)
- {
- #if defined CONFIG_ISAPNP || defined CONFIG_ISAPNP_MODULE
- if(isapnp && (ad1816_probe_isapnp(&cfg) < 0) ) {
- printk(KERN_NOTICE "ad1816: No ISAPnP cards found, trying standard ones...n");
- isapnp = 0;
- }
- #endif
- if( isapnp == 0) {
- cfg.io_base = io;
- cfg.irq = irq;
- cfg.dma = dma;
- cfg.dma2 = dma2;
- }
- if (cfg.io_base == -1 || cfg.irq == -1 || cfg.dma == -1 || cfg.dma2 == -1) {
- printk(KERN_INFO "ad1816: dma, dma2, irq and io must be set.n");
- return -EINVAL;
- }
- if (probe_ad1816(&cfg) == 0) {
- return -ENODEV;
- }
- attach_ad1816(&cfg);
- return 0;
- }
- static void __exit cleanup_ad1816 (void)
- {
- int i;
- ad1816_info *devc = NULL;
-
- /* remove any soundcard */
- for (i = 0; i < nr_ad1816_devs; i++) {
- devc = &dev_info[i];
- unload_card(devc);
- }
- nr_ad1816_devs=0;
- #if defined CONFIG_ISAPNP || defined CONFIG_ISAPNP_MODULE
- if(activated)
- if(ad1816_dev)
- ad1816_dev->deactivate(ad1816_dev);
- #endif
- }
- module_init(init_ad1816);
- module_exit(cleanup_ad1816);
- #ifndef MODULE
- static int __init setup_ad1816(char *str)
- {
- /* io, irq, dma, dma2 */
- int ints[5];
-
- str = get_options(str, ARRAY_SIZE(ints), ints);
-
- io = ints[1];
- irq = ints[2];
- dma = ints[3];
- dma2 = ints[4];
- return 1;
- }
- __setup("ad1816=", setup_ad1816);
- #endif
- MODULE_LICENSE("GPL");