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xianfeng |
/*
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* sound/oss/sb_audio.c
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*
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* Audio routines for Sound Blaster compatible cards.
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*
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*
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* Copyright (C) by Hannu Savolainen 1993-1997
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*
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* OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
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* Version 2 (June 1991). See the "COPYING" file distributed with this software
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* for more info.
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*
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* Changes
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* Alan Cox : Formatting and clean ups
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*
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* Status
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* Mostly working. Weird uart bug causing irq storms
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*
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* Daniel J. Rodriksson: Changes to make sb16 work full duplex.
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* Maybe other 16 bit cards in this code could behave
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* the same.
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* Chris Rankin: Use spinlocks instead of CLI/STI
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*/
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#include <linux/spinlock.h>
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#include "sound_config.h"
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#include "sb_mixer.h"
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#include "sb.h"
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#include "sb_ess.h"
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int sb_audio_open(int dev, int mode)
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{
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sb_devc *devc = audio_devs[dev]->devc;
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unsigned long flags;
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if (devc == NULL)
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{
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printk(KERN_ERR "Sound Blaster: incomplete initialization.\n");
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return -ENXIO;
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}
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if (devc->caps & SB_NO_RECORDING && mode & OPEN_READ)
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{
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if (mode == OPEN_READ)
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return -EPERM;
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}
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spin_lock_irqsave(&devc->lock, flags);
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if (devc->opened)
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{
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spin_unlock_irqrestore(&devc->lock, flags);
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return -EBUSY;
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}
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if (devc->dma16 != -1 && devc->dma16 != devc->dma8 && !devc->duplex)
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{
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if (sound_open_dma(devc->dma16, "Sound Blaster 16 bit"))
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{
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spin_unlock_irqrestore(&devc->lock, flags);
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return -EBUSY;
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}
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}
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devc->opened = mode;
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spin_unlock_irqrestore(&devc->lock, flags);
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devc->irq_mode = IMODE_NONE;
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devc->irq_mode_16 = IMODE_NONE;
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devc->fullduplex = devc->duplex &&
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((mode & OPEN_READ) && (mode & OPEN_WRITE));
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sb_dsp_reset(devc);
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/* At first glance this check isn't enough, some ESS chips might not
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* have a RECLEV. However if they don't common_mixer_set will refuse
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* cause devc->iomap has no register mapping for RECLEV
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*/
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if (devc->model == MDL_ESS) ess_mixer_reload (devc, SOUND_MIXER_RECLEV);
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/* The ALS007 seems to require that the DSP be removed from the output */
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/* in order for recording to be activated properly. This is done by */
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/* setting the appropriate bits of the output control register 4ch to */
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/* zero. This code assumes that the output control registers are not */
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/* used anywhere else and therefore the DSP bits are *always* ON for */
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/* output and OFF for sampling. */
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if (devc->submodel == SUBMDL_ALS007)
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{
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if (mode & OPEN_READ)
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sb_setmixer(devc,ALS007_OUTPUT_CTRL2,
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sb_getmixer(devc,ALS007_OUTPUT_CTRL2) & 0xf9);
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else
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sb_setmixer(devc,ALS007_OUTPUT_CTRL2,
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sb_getmixer(devc,ALS007_OUTPUT_CTRL2) | 0x06);
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}
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return 0;
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}
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void sb_audio_close(int dev)
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{
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sb_devc *devc = audio_devs[dev]->devc;
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/* fix things if mmap turned off fullduplex */
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if(devc->duplex
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&& !devc->fullduplex
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&& (devc->opened & OPEN_READ) && (devc->opened & OPEN_WRITE))
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{
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struct dma_buffparms *dmap_temp;
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dmap_temp = audio_devs[dev]->dmap_out;
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audio_devs[dev]->dmap_out = audio_devs[dev]->dmap_in;
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audio_devs[dev]->dmap_in = dmap_temp;
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}
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audio_devs[dev]->dmap_out->dma = devc->dma8;
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audio_devs[dev]->dmap_in->dma = ( devc->duplex ) ?
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devc->dma16 : devc->dma8;
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if (devc->dma16 != -1 && devc->dma16 != devc->dma8 && !devc->duplex)
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sound_close_dma(devc->dma16);
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/* For ALS007, turn DSP output back on if closing the device for read */
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if ((devc->submodel == SUBMDL_ALS007) && (devc->opened & OPEN_READ))
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{
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sb_setmixer(devc,ALS007_OUTPUT_CTRL2,
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sb_getmixer(devc,ALS007_OUTPUT_CTRL2) | 0x06);
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}
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devc->opened = 0;
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}
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static void sb_set_output_parms(int dev, unsigned long buf, int nr_bytes,
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int intrflag)
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{
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sb_devc *devc = audio_devs[dev]->devc;
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if (!devc->fullduplex || devc->bits == AFMT_S16_LE)
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{
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devc->trg_buf = buf;
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devc->trg_bytes = nr_bytes;
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devc->trg_intrflag = intrflag;
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devc->irq_mode = IMODE_OUTPUT;
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}
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else
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{
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devc->trg_buf_16 = buf;
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devc->trg_bytes_16 = nr_bytes;
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devc->trg_intrflag_16 = intrflag;
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devc->irq_mode_16 = IMODE_OUTPUT;
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}
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}
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static void sb_set_input_parms(int dev, unsigned long buf, int count, int intrflag)
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{
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sb_devc *devc = audio_devs[dev]->devc;
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if (!devc->fullduplex || devc->bits != AFMT_S16_LE)
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{
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devc->trg_buf = buf;
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devc->trg_bytes = count;
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devc->trg_intrflag = intrflag;
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devc->irq_mode = IMODE_INPUT;
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}
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else
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{
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devc->trg_buf_16 = buf;
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devc->trg_bytes_16 = count;
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devc->trg_intrflag_16 = intrflag;
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devc->irq_mode_16 = IMODE_INPUT;
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}
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}
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/*
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* SB1.x compatible routines
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*/
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static void sb1_audio_output_block(int dev, unsigned long buf, int nr_bytes, int intrflag)
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{
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unsigned long flags;
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int count = nr_bytes;
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sb_devc *devc = audio_devs[dev]->devc;
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/* DMAbuf_start_dma (dev, buf, count, DMA_MODE_WRITE); */
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if (audio_devs[dev]->dmap_out->dma > 3)
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count >>= 1;
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count--;
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devc->irq_mode = IMODE_OUTPUT;
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spin_lock_irqsave(&devc->lock, flags);
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if (sb_dsp_command(devc, 0x14)) /* 8 bit DAC using DMA */
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{
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sb_dsp_command(devc, (unsigned char) (count & 0xff));
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sb_dsp_command(devc, (unsigned char) ((count >> 8) & 0xff));
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}
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else
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printk(KERN_WARNING "Sound Blaster: unable to start DAC.\n");
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spin_unlock_irqrestore(&devc->lock, flags);
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devc->intr_active = 1;
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}
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| 199 |
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static void sb1_audio_start_input(int dev, unsigned long buf, int nr_bytes, int intrflag)
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{
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unsigned long flags;
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int count = nr_bytes;
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sb_devc *devc = audio_devs[dev]->devc;
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/*
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* Start a DMA input to the buffer pointed by dmaqtail
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*/
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/* DMAbuf_start_dma (dev, buf, count, DMA_MODE_READ); */
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| 211 |
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if (audio_devs[dev]->dmap_out->dma > 3)
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count >>= 1;
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count--;
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devc->irq_mode = IMODE_INPUT;
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spin_lock_irqsave(&devc->lock, flags);
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if (sb_dsp_command(devc, 0x24)) /* 8 bit ADC using DMA */
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{
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| 220 |
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sb_dsp_command(devc, (unsigned char) (count & 0xff));
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sb_dsp_command(devc, (unsigned char) ((count >> 8) & 0xff));
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| 222 |
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}
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| 223 |
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else
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| 224 |
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printk(KERN_ERR "Sound Blaster: unable to start ADC.\n");
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| 225 |
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spin_unlock_irqrestore(&devc->lock, flags);
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| 226 |
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| 227 |
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devc->intr_active = 1;
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| 228 |
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}
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| 229 |
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| 230 |
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static void sb1_audio_trigger(int dev, int bits)
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| 231 |
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{
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| 232 |
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sb_devc *devc = audio_devs[dev]->devc;
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| 233 |
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| 234 |
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bits &= devc->irq_mode;
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| 236 |
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if (!bits)
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| 237 |
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sb_dsp_command(devc, 0xd0); /* Halt DMA */
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| 238 |
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else
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| 239 |
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{
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| 240 |
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switch (devc->irq_mode)
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| 241 |
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{
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| 242 |
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case IMODE_INPUT:
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| 243 |
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sb1_audio_start_input(dev, devc->trg_buf, devc->trg_bytes,
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| 244 |
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devc->trg_intrflag);
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| 245 |
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break;
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| 246 |
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| 247 |
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case IMODE_OUTPUT:
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| 248 |
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sb1_audio_output_block(dev, devc->trg_buf, devc->trg_bytes,
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| 249 |
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devc->trg_intrflag);
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| 250 |
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break;
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| 251 |
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}
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| 252 |
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}
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| 253 |
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devc->trigger_bits = bits;
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| 254 |
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}
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| 255 |
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| 256 |
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static int sb1_audio_prepare_for_input(int dev, int bsize, int bcount)
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| 257 |
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{
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| 258 |
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sb_devc *devc = audio_devs[dev]->devc;
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| 259 |
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unsigned long flags;
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| 260 |
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| 261 |
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spin_lock_irqsave(&devc->lock, flags);
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| 262 |
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if (sb_dsp_command(devc, 0x40))
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| 263 |
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sb_dsp_command(devc, devc->tconst);
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| 264 |
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sb_dsp_command(devc, DSP_CMD_SPKOFF);
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| 265 |
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spin_unlock_irqrestore(&devc->lock, flags);
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| 266 |
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| 267 |
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devc->trigger_bits = 0;
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| 268 |
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return 0;
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| 269 |
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}
|
| 270 |
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|
| 271 |
|
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static int sb1_audio_prepare_for_output(int dev, int bsize, int bcount)
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| 272 |
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{
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| 273 |
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sb_devc *devc = audio_devs[dev]->devc;
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| 274 |
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unsigned long flags;
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| 275 |
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| 276 |
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spin_lock_irqsave(&devc->lock, flags);
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| 277 |
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if (sb_dsp_command(devc, 0x40))
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| 278 |
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sb_dsp_command(devc, devc->tconst);
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| 279 |
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sb_dsp_command(devc, DSP_CMD_SPKON);
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| 280 |
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spin_unlock_irqrestore(&devc->lock, flags);
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| 281 |
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devc->trigger_bits = 0;
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| 282 |
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return 0;
|
| 283 |
|
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}
|
| 284 |
|
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|
| 285 |
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static int sb1_audio_set_speed(int dev, int speed)
|
| 286 |
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{
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| 287 |
|
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int max_speed = 23000;
|
| 288 |
|
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sb_devc *devc = audio_devs[dev]->devc;
|
| 289 |
|
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int tmp;
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| 290 |
|
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| 291 |
|
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if (devc->opened & OPEN_READ)
|
| 292 |
|
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max_speed = 13000;
|
| 293 |
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|
|
| 294 |
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if (speed > 0)
|
| 295 |
|
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{
|
| 296 |
|
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if (speed < 4000)
|
| 297 |
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speed = 4000;
|
| 298 |
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|
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| 299 |
|
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if (speed > max_speed)
|
| 300 |
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speed = max_speed;
|
| 301 |
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| 302 |
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devc->tconst = (256 - ((1000000 + speed / 2) / speed)) & 0xff;
|
| 303 |
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tmp = 256 - devc->tconst;
|
| 304 |
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speed = (1000000 + tmp / 2) / tmp;
|
| 305 |
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| 306 |
|
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devc->speed = speed;
|
| 307 |
|
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}
|
| 308 |
|
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return devc->speed;
|
| 309 |
|
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}
|
| 310 |
|
|
|
| 311 |
|
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static short sb1_audio_set_channels(int dev, short channels)
|
| 312 |
|
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{
|
| 313 |
|
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sb_devc *devc = audio_devs[dev]->devc;
|
| 314 |
|
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return devc->channels = 1;
|
| 315 |
|
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}
|
| 316 |
|
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|
| 317 |
|
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static unsigned int sb1_audio_set_bits(int dev, unsigned int bits)
|
| 318 |
|
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{
|
| 319 |
|
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sb_devc *devc = audio_devs[dev]->devc;
|
| 320 |
|
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return devc->bits = 8;
|
| 321 |
|
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}
|
| 322 |
|
|
|
| 323 |
|
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static void sb1_audio_halt_xfer(int dev)
|
| 324 |
|
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{
|
| 325 |
|
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unsigned long flags;
|
| 326 |
|
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sb_devc *devc = audio_devs[dev]->devc;
|
| 327 |
|
|
|
| 328 |
|
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spin_lock_irqsave(&devc->lock, flags);
|
| 329 |
|
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sb_dsp_reset(devc);
|
| 330 |
|
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spin_unlock_irqrestore(&devc->lock, flags);
|
| 331 |
|
|
}
|
| 332 |
|
|
|
| 333 |
|
|
/*
|
| 334 |
|
|
* SB 2.0 and SB 2.01 compatible routines
|
| 335 |
|
|
*/
|
| 336 |
|
|
|
| 337 |
|
|
static void sb20_audio_output_block(int dev, unsigned long buf, int nr_bytes,
|
| 338 |
|
|
int intrflag)
|
| 339 |
|
|
{
|
| 340 |
|
|
unsigned long flags;
|
| 341 |
|
|
int count = nr_bytes;
|
| 342 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 343 |
|
|
unsigned char cmd;
|
| 344 |
|
|
|
| 345 |
|
|
/* DMAbuf_start_dma (dev, buf, count, DMA_MODE_WRITE); */
|
| 346 |
|
|
|
| 347 |
|
|
if (audio_devs[dev]->dmap_out->dma > 3)
|
| 348 |
|
|
count >>= 1;
|
| 349 |
|
|
count--;
|
| 350 |
|
|
|
| 351 |
|
|
devc->irq_mode = IMODE_OUTPUT;
|
| 352 |
|
|
|
| 353 |
|
|
spin_lock_irqsave(&devc->lock, flags);
|
| 354 |
|
|
if (sb_dsp_command(devc, 0x48)) /* DSP Block size */
|
| 355 |
|
|
{
|
| 356 |
|
|
sb_dsp_command(devc, (unsigned char) (count & 0xff));
|
| 357 |
|
|
sb_dsp_command(devc, (unsigned char) ((count >> 8) & 0xff));
|
| 358 |
|
|
|
| 359 |
|
|
if (devc->speed * devc->channels <= 23000)
|
| 360 |
|
|
cmd = 0x1c; /* 8 bit PCM output */
|
| 361 |
|
|
else
|
| 362 |
|
|
cmd = 0x90; /* 8 bit high speed PCM output (SB2.01/Pro) */
|
| 363 |
|
|
|
| 364 |
|
|
if (!sb_dsp_command(devc, cmd))
|
| 365 |
|
|
printk(KERN_ERR "Sound Blaster: unable to start DAC.\n");
|
| 366 |
|
|
}
|
| 367 |
|
|
else
|
| 368 |
|
|
printk(KERN_ERR "Sound Blaster: unable to start DAC.\n");
|
| 369 |
|
|
spin_unlock_irqrestore(&devc->lock, flags);
|
| 370 |
|
|
devc->intr_active = 1;
|
| 371 |
|
|
}
|
| 372 |
|
|
|
| 373 |
|
|
static void sb20_audio_start_input(int dev, unsigned long buf, int nr_bytes, int intrflag)
|
| 374 |
|
|
{
|
| 375 |
|
|
unsigned long flags;
|
| 376 |
|
|
int count = nr_bytes;
|
| 377 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 378 |
|
|
unsigned char cmd;
|
| 379 |
|
|
|
| 380 |
|
|
/*
|
| 381 |
|
|
* Start a DMA input to the buffer pointed by dmaqtail
|
| 382 |
|
|
*/
|
| 383 |
|
|
|
| 384 |
|
|
/* DMAbuf_start_dma (dev, buf, count, DMA_MODE_READ); */
|
| 385 |
|
|
|
| 386 |
|
|
if (audio_devs[dev]->dmap_out->dma > 3)
|
| 387 |
|
|
count >>= 1;
|
| 388 |
|
|
count--;
|
| 389 |
|
|
|
| 390 |
|
|
devc->irq_mode = IMODE_INPUT;
|
| 391 |
|
|
|
| 392 |
|
|
spin_lock_irqsave(&devc->lock, flags);
|
| 393 |
|
|
if (sb_dsp_command(devc, 0x48)) /* DSP Block size */
|
| 394 |
|
|
{
|
| 395 |
|
|
sb_dsp_command(devc, (unsigned char) (count & 0xff));
|
| 396 |
|
|
sb_dsp_command(devc, (unsigned char) ((count >> 8) & 0xff));
|
| 397 |
|
|
|
| 398 |
|
|
if (devc->speed * devc->channels <= (devc->major == 3 ? 23000 : 13000))
|
| 399 |
|
|
cmd = 0x2c; /* 8 bit PCM input */
|
| 400 |
|
|
else
|
| 401 |
|
|
cmd = 0x98; /* 8 bit high speed PCM input (SB2.01/Pro) */
|
| 402 |
|
|
|
| 403 |
|
|
if (!sb_dsp_command(devc, cmd))
|
| 404 |
|
|
printk(KERN_ERR "Sound Blaster: unable to start ADC.\n");
|
| 405 |
|
|
}
|
| 406 |
|
|
else
|
| 407 |
|
|
printk(KERN_ERR "Sound Blaster: unable to start ADC.\n");
|
| 408 |
|
|
spin_unlock_irqrestore(&devc->lock, flags);
|
| 409 |
|
|
devc->intr_active = 1;
|
| 410 |
|
|
}
|
| 411 |
|
|
|
| 412 |
|
|
static void sb20_audio_trigger(int dev, int bits)
|
| 413 |
|
|
{
|
| 414 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 415 |
|
|
bits &= devc->irq_mode;
|
| 416 |
|
|
|
| 417 |
|
|
if (!bits)
|
| 418 |
|
|
sb_dsp_command(devc, 0xd0); /* Halt DMA */
|
| 419 |
|
|
else
|
| 420 |
|
|
{
|
| 421 |
|
|
switch (devc->irq_mode)
|
| 422 |
|
|
{
|
| 423 |
|
|
case IMODE_INPUT:
|
| 424 |
|
|
sb20_audio_start_input(dev, devc->trg_buf, devc->trg_bytes,
|
| 425 |
|
|
devc->trg_intrflag);
|
| 426 |
|
|
break;
|
| 427 |
|
|
|
| 428 |
|
|
case IMODE_OUTPUT:
|
| 429 |
|
|
sb20_audio_output_block(dev, devc->trg_buf, devc->trg_bytes,
|
| 430 |
|
|
devc->trg_intrflag);
|
| 431 |
|
|
break;
|
| 432 |
|
|
}
|
| 433 |
|
|
}
|
| 434 |
|
|
devc->trigger_bits = bits;
|
| 435 |
|
|
}
|
| 436 |
|
|
|
| 437 |
|
|
/*
|
| 438 |
|
|
* SB2.01 specific speed setup
|
| 439 |
|
|
*/
|
| 440 |
|
|
|
| 441 |
|
|
static int sb201_audio_set_speed(int dev, int speed)
|
| 442 |
|
|
{
|
| 443 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 444 |
|
|
int tmp;
|
| 445 |
|
|
int s = speed * devc->channels;
|
| 446 |
|
|
|
| 447 |
|
|
if (speed > 0)
|
| 448 |
|
|
{
|
| 449 |
|
|
if (speed < 4000)
|
| 450 |
|
|
speed = 4000;
|
| 451 |
|
|
if (speed > 44100)
|
| 452 |
|
|
speed = 44100;
|
| 453 |
|
|
if (devc->opened & OPEN_READ && speed > 15000)
|
| 454 |
|
|
speed = 15000;
|
| 455 |
|
|
devc->tconst = (256 - ((1000000 + s / 2) / s)) & 0xff;
|
| 456 |
|
|
tmp = 256 - devc->tconst;
|
| 457 |
|
|
speed = ((1000000 + tmp / 2) / tmp) / devc->channels;
|
| 458 |
|
|
|
| 459 |
|
|
devc->speed = speed;
|
| 460 |
|
|
}
|
| 461 |
|
|
return devc->speed;
|
| 462 |
|
|
}
|
| 463 |
|
|
|
| 464 |
|
|
/*
|
| 465 |
|
|
* SB Pro specific routines
|
| 466 |
|
|
*/
|
| 467 |
|
|
|
| 468 |
|
|
static int sbpro_audio_prepare_for_input(int dev, int bsize, int bcount)
|
| 469 |
|
|
{ /* For SB Pro and Jazz16 */
|
| 470 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 471 |
|
|
unsigned long flags;
|
| 472 |
|
|
unsigned char bits = 0;
|
| 473 |
|
|
|
| 474 |
|
|
if (devc->dma16 >= 0 && devc->dma16 != devc->dma8)
|
| 475 |
|
|
audio_devs[dev]->dmap_out->dma = audio_devs[dev]->dmap_in->dma =
|
| 476 |
|
|
devc->bits == 16 ? devc->dma16 : devc->dma8;
|
| 477 |
|
|
|
| 478 |
|
|
if (devc->model == MDL_JAZZ || devc->model == MDL_SMW)
|
| 479 |
|
|
if (devc->bits == AFMT_S16_LE)
|
| 480 |
|
|
bits = 0x04; /* 16 bit mode */
|
| 481 |
|
|
|
| 482 |
|
|
spin_lock_irqsave(&devc->lock, flags);
|
| 483 |
|
|
if (sb_dsp_command(devc, 0x40))
|
| 484 |
|
|
sb_dsp_command(devc, devc->tconst);
|
| 485 |
|
|
sb_dsp_command(devc, DSP_CMD_SPKOFF);
|
| 486 |
|
|
if (devc->channels == 1)
|
| 487 |
|
|
sb_dsp_command(devc, 0xa0 | bits); /* Mono input */
|
| 488 |
|
|
else
|
| 489 |
|
|
sb_dsp_command(devc, 0xa8 | bits); /* Stereo input */
|
| 490 |
|
|
spin_unlock_irqrestore(&devc->lock, flags);
|
| 491 |
|
|
|
| 492 |
|
|
devc->trigger_bits = 0;
|
| 493 |
|
|
return 0;
|
| 494 |
|
|
}
|
| 495 |
|
|
|
| 496 |
|
|
static int sbpro_audio_prepare_for_output(int dev, int bsize, int bcount)
|
| 497 |
|
|
{ /* For SB Pro and Jazz16 */
|
| 498 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 499 |
|
|
unsigned long flags;
|
| 500 |
|
|
unsigned char tmp;
|
| 501 |
|
|
unsigned char bits = 0;
|
| 502 |
|
|
|
| 503 |
|
|
if (devc->dma16 >= 0 && devc->dma16 != devc->dma8)
|
| 504 |
|
|
audio_devs[dev]->dmap_out->dma = audio_devs[dev]->dmap_in->dma = devc->bits == 16 ? devc->dma16 : devc->dma8;
|
| 505 |
|
|
if (devc->model == MDL_SBPRO)
|
| 506 |
|
|
sb_mixer_set_stereo(devc, devc->channels == 2);
|
| 507 |
|
|
|
| 508 |
|
|
spin_lock_irqsave(&devc->lock, flags);
|
| 509 |
|
|
if (sb_dsp_command(devc, 0x40))
|
| 510 |
|
|
sb_dsp_command(devc, devc->tconst);
|
| 511 |
|
|
sb_dsp_command(devc, DSP_CMD_SPKON);
|
| 512 |
|
|
|
| 513 |
|
|
if (devc->model == MDL_JAZZ || devc->model == MDL_SMW)
|
| 514 |
|
|
{
|
| 515 |
|
|
if (devc->bits == AFMT_S16_LE)
|
| 516 |
|
|
bits = 0x04; /* 16 bit mode */
|
| 517 |
|
|
|
| 518 |
|
|
if (devc->channels == 1)
|
| 519 |
|
|
sb_dsp_command(devc, 0xa0 | bits); /* Mono output */
|
| 520 |
|
|
else
|
| 521 |
|
|
sb_dsp_command(devc, 0xa8 | bits); /* Stereo output */
|
| 522 |
|
|
spin_unlock_irqrestore(&devc->lock, flags);
|
| 523 |
|
|
}
|
| 524 |
|
|
else
|
| 525 |
|
|
{
|
| 526 |
|
|
spin_unlock_irqrestore(&devc->lock, flags);
|
| 527 |
|
|
tmp = sb_getmixer(devc, 0x0e);
|
| 528 |
|
|
if (devc->channels == 1)
|
| 529 |
|
|
tmp &= ~0x02;
|
| 530 |
|
|
else
|
| 531 |
|
|
tmp |= 0x02;
|
| 532 |
|
|
sb_setmixer(devc, 0x0e, tmp);
|
| 533 |
|
|
}
|
| 534 |
|
|
devc->trigger_bits = 0;
|
| 535 |
|
|
return 0;
|
| 536 |
|
|
}
|
| 537 |
|
|
|
| 538 |
|
|
static int sbpro_audio_set_speed(int dev, int speed)
|
| 539 |
|
|
{
|
| 540 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 541 |
|
|
|
| 542 |
|
|
if (speed > 0)
|
| 543 |
|
|
{
|
| 544 |
|
|
if (speed < 4000)
|
| 545 |
|
|
speed = 4000;
|
| 546 |
|
|
if (speed > 44100)
|
| 547 |
|
|
speed = 44100;
|
| 548 |
|
|
if (devc->channels > 1 && speed > 22050)
|
| 549 |
|
|
speed = 22050;
|
| 550 |
|
|
sb201_audio_set_speed(dev, speed);
|
| 551 |
|
|
}
|
| 552 |
|
|
return devc->speed;
|
| 553 |
|
|
}
|
| 554 |
|
|
|
| 555 |
|
|
static short sbpro_audio_set_channels(int dev, short channels)
|
| 556 |
|
|
{
|
| 557 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 558 |
|
|
|
| 559 |
|
|
if (channels == 1 || channels == 2)
|
| 560 |
|
|
{
|
| 561 |
|
|
if (channels != devc->channels)
|
| 562 |
|
|
{
|
| 563 |
|
|
devc->channels = channels;
|
| 564 |
|
|
if (devc->model == MDL_SBPRO && devc->channels == 2)
|
| 565 |
|
|
sbpro_audio_set_speed(dev, devc->speed);
|
| 566 |
|
|
}
|
| 567 |
|
|
}
|
| 568 |
|
|
return devc->channels;
|
| 569 |
|
|
}
|
| 570 |
|
|
|
| 571 |
|
|
static int jazz16_audio_set_speed(int dev, int speed)
|
| 572 |
|
|
{
|
| 573 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 574 |
|
|
|
| 575 |
|
|
if (speed > 0)
|
| 576 |
|
|
{
|
| 577 |
|
|
int tmp;
|
| 578 |
|
|
int s = speed * devc->channels;
|
| 579 |
|
|
|
| 580 |
|
|
if (speed < 5000)
|
| 581 |
|
|
speed = 5000;
|
| 582 |
|
|
if (speed > 44100)
|
| 583 |
|
|
speed = 44100;
|
| 584 |
|
|
|
| 585 |
|
|
devc->tconst = (256 - ((1000000 + s / 2) / s)) & 0xff;
|
| 586 |
|
|
|
| 587 |
|
|
tmp = 256 - devc->tconst;
|
| 588 |
|
|
speed = ((1000000 + tmp / 2) / tmp) / devc->channels;
|
| 589 |
|
|
|
| 590 |
|
|
devc->speed = speed;
|
| 591 |
|
|
}
|
| 592 |
|
|
return devc->speed;
|
| 593 |
|
|
}
|
| 594 |
|
|
|
| 595 |
|
|
/*
|
| 596 |
|
|
* SB16 specific routines
|
| 597 |
|
|
*/
|
| 598 |
|
|
|
| 599 |
|
|
static int sb16_audio_set_speed(int dev, int speed)
|
| 600 |
|
|
{
|
| 601 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 602 |
|
|
int max_speed = devc->submodel == SUBMDL_ALS100 ? 48000 : 44100;
|
| 603 |
|
|
|
| 604 |
|
|
if (speed > 0)
|
| 605 |
|
|
{
|
| 606 |
|
|
if (speed < 5000)
|
| 607 |
|
|
speed = 5000;
|
| 608 |
|
|
|
| 609 |
|
|
if (speed > max_speed)
|
| 610 |
|
|
speed = max_speed;
|
| 611 |
|
|
|
| 612 |
|
|
devc->speed = speed;
|
| 613 |
|
|
}
|
| 614 |
|
|
return devc->speed;
|
| 615 |
|
|
}
|
| 616 |
|
|
|
| 617 |
|
|
static unsigned int sb16_audio_set_bits(int dev, unsigned int bits)
|
| 618 |
|
|
{
|
| 619 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 620 |
|
|
|
| 621 |
|
|
if (bits != 0)
|
| 622 |
|
|
{
|
| 623 |
|
|
if (bits == AFMT_U8 || bits == AFMT_S16_LE)
|
| 624 |
|
|
devc->bits = bits;
|
| 625 |
|
|
else
|
| 626 |
|
|
devc->bits = AFMT_U8;
|
| 627 |
|
|
}
|
| 628 |
|
|
|
| 629 |
|
|
return devc->bits;
|
| 630 |
|
|
}
|
| 631 |
|
|
|
| 632 |
|
|
static int sb16_audio_prepare_for_input(int dev, int bsize, int bcount)
|
| 633 |
|
|
{
|
| 634 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 635 |
|
|
|
| 636 |
|
|
if (!devc->fullduplex)
|
| 637 |
|
|
{
|
| 638 |
|
|
audio_devs[dev]->dmap_out->dma =
|
| 639 |
|
|
audio_devs[dev]->dmap_in->dma =
|
| 640 |
|
|
devc->bits == AFMT_S16_LE ?
|
| 641 |
|
|
devc->dma16 : devc->dma8;
|
| 642 |
|
|
}
|
| 643 |
|
|
else if (devc->bits == AFMT_S16_LE)
|
| 644 |
|
|
{
|
| 645 |
|
|
audio_devs[dev]->dmap_out->dma = devc->dma8;
|
| 646 |
|
|
audio_devs[dev]->dmap_in->dma = devc->dma16;
|
| 647 |
|
|
}
|
| 648 |
|
|
else
|
| 649 |
|
|
{
|
| 650 |
|
|
audio_devs[dev]->dmap_out->dma = devc->dma16;
|
| 651 |
|
|
audio_devs[dev]->dmap_in->dma = devc->dma8;
|
| 652 |
|
|
}
|
| 653 |
|
|
|
| 654 |
|
|
devc->trigger_bits = 0;
|
| 655 |
|
|
return 0;
|
| 656 |
|
|
}
|
| 657 |
|
|
|
| 658 |
|
|
static int sb16_audio_prepare_for_output(int dev, int bsize, int bcount)
|
| 659 |
|
|
{
|
| 660 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 661 |
|
|
|
| 662 |
|
|
if (!devc->fullduplex)
|
| 663 |
|
|
{
|
| 664 |
|
|
audio_devs[dev]->dmap_out->dma =
|
| 665 |
|
|
audio_devs[dev]->dmap_in->dma =
|
| 666 |
|
|
devc->bits == AFMT_S16_LE ?
|
| 667 |
|
|
devc->dma16 : devc->dma8;
|
| 668 |
|
|
}
|
| 669 |
|
|
else if (devc->bits == AFMT_S16_LE)
|
| 670 |
|
|
{
|
| 671 |
|
|
audio_devs[dev]->dmap_out->dma = devc->dma8;
|
| 672 |
|
|
audio_devs[dev]->dmap_in->dma = devc->dma16;
|
| 673 |
|
|
}
|
| 674 |
|
|
else
|
| 675 |
|
|
{
|
| 676 |
|
|
audio_devs[dev]->dmap_out->dma = devc->dma16;
|
| 677 |
|
|
audio_devs[dev]->dmap_in->dma = devc->dma8;
|
| 678 |
|
|
}
|
| 679 |
|
|
|
| 680 |
|
|
devc->trigger_bits = 0;
|
| 681 |
|
|
return 0;
|
| 682 |
|
|
}
|
| 683 |
|
|
|
| 684 |
|
|
static void sb16_audio_output_block(int dev, unsigned long buf, int count,
|
| 685 |
|
|
int intrflag)
|
| 686 |
|
|
{
|
| 687 |
|
|
unsigned long flags, cnt;
|
| 688 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 689 |
|
|
unsigned long bits;
|
| 690 |
|
|
|
| 691 |
|
|
if (!devc->fullduplex || devc->bits == AFMT_S16_LE)
|
| 692 |
|
|
{
|
| 693 |
|
|
devc->irq_mode = IMODE_OUTPUT;
|
| 694 |
|
|
devc->intr_active = 1;
|
| 695 |
|
|
}
|
| 696 |
|
|
else
|
| 697 |
|
|
{
|
| 698 |
|
|
devc->irq_mode_16 = IMODE_OUTPUT;
|
| 699 |
|
|
devc->intr_active_16 = 1;
|
| 700 |
|
|
}
|
| 701 |
|
|
|
| 702 |
|
|
/* save value */
|
| 703 |
|
|
spin_lock_irqsave(&devc->lock, flags);
|
| 704 |
|
|
bits = devc->bits;
|
| 705 |
|
|
if (devc->fullduplex)
|
| 706 |
|
|
devc->bits = (devc->bits == AFMT_S16_LE) ?
|
| 707 |
|
|
AFMT_U8 : AFMT_S16_LE;
|
| 708 |
|
|
spin_unlock_irqrestore(&devc->lock, flags);
|
| 709 |
|
|
|
| 710 |
|
|
cnt = count;
|
| 711 |
|
|
if (devc->bits == AFMT_S16_LE)
|
| 712 |
|
|
cnt >>= 1;
|
| 713 |
|
|
cnt--;
|
| 714 |
|
|
|
| 715 |
|
|
spin_lock_irqsave(&devc->lock, flags);
|
| 716 |
|
|
|
| 717 |
|
|
/* DMAbuf_start_dma (dev, buf, count, DMA_MODE_WRITE); */
|
| 718 |
|
|
|
| 719 |
|
|
sb_dsp_command(devc, 0x41);
|
| 720 |
|
|
sb_dsp_command(devc, (unsigned char) ((devc->speed >> 8) & 0xff));
|
| 721 |
|
|
sb_dsp_command(devc, (unsigned char) (devc->speed & 0xff));
|
| 722 |
|
|
|
| 723 |
|
|
sb_dsp_command(devc, (devc->bits == AFMT_S16_LE ? 0xb6 : 0xc6));
|
| 724 |
|
|
sb_dsp_command(devc, ((devc->channels == 2 ? 0x20 : 0) +
|
| 725 |
|
|
(devc->bits == AFMT_S16_LE ? 0x10 : 0)));
|
| 726 |
|
|
sb_dsp_command(devc, (unsigned char) (cnt & 0xff));
|
| 727 |
|
|
sb_dsp_command(devc, (unsigned char) (cnt >> 8));
|
| 728 |
|
|
|
| 729 |
|
|
/* restore real value after all programming */
|
| 730 |
|
|
devc->bits = bits;
|
| 731 |
|
|
spin_unlock_irqrestore(&devc->lock, flags);
|
| 732 |
|
|
}
|
| 733 |
|
|
|
| 734 |
|
|
|
| 735 |
|
|
/*
|
| 736 |
|
|
* This fails on the Cyrix MediaGX. If you don't have the DMA enabled
|
| 737 |
|
|
* before the first sample arrives it locks up. However even if you
|
| 738 |
|
|
* do enable the DMA in time you just get DMA timeouts and missing
|
| 739 |
|
|
* interrupts and stuff, so for now I've not bothered fixing this either.
|
| 740 |
|
|
*/
|
| 741 |
|
|
|
| 742 |
|
|
static void sb16_audio_start_input(int dev, unsigned long buf, int count, int intrflag)
|
| 743 |
|
|
{
|
| 744 |
|
|
unsigned long flags, cnt;
|
| 745 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 746 |
|
|
|
| 747 |
|
|
if (!devc->fullduplex || devc->bits != AFMT_S16_LE)
|
| 748 |
|
|
{
|
| 749 |
|
|
devc->irq_mode = IMODE_INPUT;
|
| 750 |
|
|
devc->intr_active = 1;
|
| 751 |
|
|
}
|
| 752 |
|
|
else
|
| 753 |
|
|
{
|
| 754 |
|
|
devc->irq_mode_16 = IMODE_INPUT;
|
| 755 |
|
|
devc->intr_active_16 = 1;
|
| 756 |
|
|
}
|
| 757 |
|
|
|
| 758 |
|
|
cnt = count;
|
| 759 |
|
|
if (devc->bits == AFMT_S16_LE)
|
| 760 |
|
|
cnt >>= 1;
|
| 761 |
|
|
cnt--;
|
| 762 |
|
|
|
| 763 |
|
|
spin_lock_irqsave(&devc->lock, flags);
|
| 764 |
|
|
|
| 765 |
|
|
/* DMAbuf_start_dma (dev, buf, count, DMA_MODE_READ); */
|
| 766 |
|
|
|
| 767 |
|
|
sb_dsp_command(devc, 0x42);
|
| 768 |
|
|
sb_dsp_command(devc, (unsigned char) ((devc->speed >> 8) & 0xff));
|
| 769 |
|
|
sb_dsp_command(devc, (unsigned char) (devc->speed & 0xff));
|
| 770 |
|
|
|
| 771 |
|
|
sb_dsp_command(devc, (devc->bits == AFMT_S16_LE ? 0xbe : 0xce));
|
| 772 |
|
|
sb_dsp_command(devc, ((devc->channels == 2 ? 0x20 : 0) +
|
| 773 |
|
|
(devc->bits == AFMT_S16_LE ? 0x10 : 0)));
|
| 774 |
|
|
sb_dsp_command(devc, (unsigned char) (cnt & 0xff));
|
| 775 |
|
|
sb_dsp_command(devc, (unsigned char) (cnt >> 8));
|
| 776 |
|
|
|
| 777 |
|
|
spin_unlock_irqrestore(&devc->lock, flags);
|
| 778 |
|
|
}
|
| 779 |
|
|
|
| 780 |
|
|
static void sb16_audio_trigger(int dev, int bits)
|
| 781 |
|
|
{
|
| 782 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 783 |
|
|
|
| 784 |
|
|
int bits_16 = bits & devc->irq_mode_16;
|
| 785 |
|
|
bits &= devc->irq_mode;
|
| 786 |
|
|
|
| 787 |
|
|
if (!bits && !bits_16)
|
| 788 |
|
|
sb_dsp_command(devc, 0xd0); /* Halt DMA */
|
| 789 |
|
|
else
|
| 790 |
|
|
{
|
| 791 |
|
|
if (bits)
|
| 792 |
|
|
{
|
| 793 |
|
|
switch (devc->irq_mode)
|
| 794 |
|
|
{
|
| 795 |
|
|
case IMODE_INPUT:
|
| 796 |
|
|
sb16_audio_start_input(dev,
|
| 797 |
|
|
devc->trg_buf,
|
| 798 |
|
|
devc->trg_bytes,
|
| 799 |
|
|
devc->trg_intrflag);
|
| 800 |
|
|
break;
|
| 801 |
|
|
|
| 802 |
|
|
case IMODE_OUTPUT:
|
| 803 |
|
|
sb16_audio_output_block(dev,
|
| 804 |
|
|
devc->trg_buf,
|
| 805 |
|
|
devc->trg_bytes,
|
| 806 |
|
|
devc->trg_intrflag);
|
| 807 |
|
|
break;
|
| 808 |
|
|
}
|
| 809 |
|
|
}
|
| 810 |
|
|
if (bits_16)
|
| 811 |
|
|
{
|
| 812 |
|
|
switch (devc->irq_mode_16)
|
| 813 |
|
|
{
|
| 814 |
|
|
case IMODE_INPUT:
|
| 815 |
|
|
sb16_audio_start_input(dev,
|
| 816 |
|
|
devc->trg_buf_16,
|
| 817 |
|
|
devc->trg_bytes_16,
|
| 818 |
|
|
devc->trg_intrflag_16);
|
| 819 |
|
|
break;
|
| 820 |
|
|
|
| 821 |
|
|
case IMODE_OUTPUT:
|
| 822 |
|
|
sb16_audio_output_block(dev,
|
| 823 |
|
|
devc->trg_buf_16,
|
| 824 |
|
|
devc->trg_bytes_16,
|
| 825 |
|
|
devc->trg_intrflag_16);
|
| 826 |
|
|
break;
|
| 827 |
|
|
}
|
| 828 |
|
|
}
|
| 829 |
|
|
}
|
| 830 |
|
|
|
| 831 |
|
|
devc->trigger_bits = bits | bits_16;
|
| 832 |
|
|
}
|
| 833 |
|
|
|
| 834 |
|
|
static unsigned char lbuf8[2048];
|
| 835 |
|
|
static signed short *lbuf16 = (signed short *)lbuf8;
|
| 836 |
|
|
#define LBUFCOPYSIZE 1024
|
| 837 |
|
|
static void
|
| 838 |
|
|
sb16_copy_from_user(int dev,
|
| 839 |
|
|
char *localbuf, int localoffs,
|
| 840 |
|
|
const char __user *userbuf, int useroffs,
|
| 841 |
|
|
int max_in, int max_out,
|
| 842 |
|
|
int *used, int *returned,
|
| 843 |
|
|
int len)
|
| 844 |
|
|
{
|
| 845 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 846 |
|
|
int i, c, p, locallen;
|
| 847 |
|
|
unsigned char *buf8;
|
| 848 |
|
|
signed short *buf16;
|
| 849 |
|
|
|
| 850 |
|
|
/* if not duplex no conversion */
|
| 851 |
|
|
if (!devc->fullduplex)
|
| 852 |
|
|
{
|
| 853 |
|
|
if (copy_from_user(localbuf + localoffs,
|
| 854 |
|
|
userbuf + useroffs, len))
|
| 855 |
|
|
return;
|
| 856 |
|
|
*used = len;
|
| 857 |
|
|
*returned = len;
|
| 858 |
|
|
}
|
| 859 |
|
|
else if (devc->bits == AFMT_S16_LE)
|
| 860 |
|
|
{
|
| 861 |
|
|
/* 16 -> 8 */
|
| 862 |
|
|
/* max_in >> 1, max number of samples in ( 16 bits ) */
|
| 863 |
|
|
/* max_out, max number of samples out ( 8 bits ) */
|
| 864 |
|
|
/* len, number of samples that will be taken ( 16 bits )*/
|
| 865 |
|
|
/* c, count of samples remaining in buffer ( 16 bits )*/
|
| 866 |
|
|
/* p, count of samples already processed ( 16 bits )*/
|
| 867 |
|
|
len = ( (max_in >> 1) > max_out) ? max_out : (max_in >> 1);
|
| 868 |
|
|
c = len;
|
| 869 |
|
|
p = 0;
|
| 870 |
|
|
buf8 = (unsigned char *)(localbuf + localoffs);
|
| 871 |
|
|
while (c)
|
| 872 |
|
|
{
|
| 873 |
|
|
locallen = (c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c);
|
| 874 |
|
|
/* << 1 in order to get 16 bit samples */
|
| 875 |
|
|
if (copy_from_user(lbuf16,
|
| 876 |
|
|
userbuf + useroffs + (p << 1),
|
| 877 |
|
|
locallen << 1))
|
| 878 |
|
|
return;
|
| 879 |
|
|
for (i = 0; i < locallen; i++)
|
| 880 |
|
|
{
|
| 881 |
|
|
buf8[p+i] = ~((lbuf16[i] >> 8) & 0xff) ^ 0x80;
|
| 882 |
|
|
}
|
| 883 |
|
|
c -= locallen; p += locallen;
|
| 884 |
|
|
}
|
| 885 |
|
|
/* used = ( samples * 16 bits size ) */
|
| 886 |
|
|
*used = max_in > ( max_out << 1) ? (max_out << 1) : max_in;
|
| 887 |
|
|
/* returned = ( samples * 8 bits size ) */
|
| 888 |
|
|
*returned = len;
|
| 889 |
|
|
}
|
| 890 |
|
|
else
|
| 891 |
|
|
{
|
| 892 |
|
|
/* 8 -> 16 */
|
| 893 |
|
|
/* max_in, max number of samples in ( 8 bits ) */
|
| 894 |
|
|
/* max_out >> 1, max number of samples out ( 16 bits ) */
|
| 895 |
|
|
/* len, number of samples that will be taken ( 8 bits )*/
|
| 896 |
|
|
/* c, count of samples remaining in buffer ( 8 bits )*/
|
| 897 |
|
|
/* p, count of samples already processed ( 8 bits )*/
|
| 898 |
|
|
len = max_in > (max_out >> 1) ? (max_out >> 1) : max_in;
|
| 899 |
|
|
c = len;
|
| 900 |
|
|
p = 0;
|
| 901 |
|
|
buf16 = (signed short *)(localbuf + localoffs);
|
| 902 |
|
|
while (c)
|
| 903 |
|
|
{
|
| 904 |
|
|
locallen = (c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c);
|
| 905 |
|
|
if (copy_from_user(lbuf8,
|
| 906 |
|
|
userbuf+useroffs + p,
|
| 907 |
|
|
locallen))
|
| 908 |
|
|
return;
|
| 909 |
|
|
for (i = 0; i < locallen; i++)
|
| 910 |
|
|
{
|
| 911 |
|
|
buf16[p+i] = (~lbuf8[i] ^ 0x80) << 8;
|
| 912 |
|
|
}
|
| 913 |
|
|
c -= locallen; p += locallen;
|
| 914 |
|
|
}
|
| 915 |
|
|
/* used = ( samples * 8 bits size ) */
|
| 916 |
|
|
*used = len;
|
| 917 |
|
|
/* returned = ( samples * 16 bits size ) */
|
| 918 |
|
|
*returned = len << 1;
|
| 919 |
|
|
}
|
| 920 |
|
|
}
|
| 921 |
|
|
|
| 922 |
|
|
static void
|
| 923 |
|
|
sb16_audio_mmap(int dev)
|
| 924 |
|
|
{
|
| 925 |
|
|
sb_devc *devc = audio_devs[dev]->devc;
|
| 926 |
|
|
devc->fullduplex = 0;
|
| 927 |
|
|
}
|
| 928 |
|
|
|
| 929 |
|
|
static struct audio_driver sb1_audio_driver = /* SB1.x */
|
| 930 |
|
|
{
|
| 931 |
|
|
.owner = THIS_MODULE,
|
| 932 |
|
|
.open = sb_audio_open,
|
| 933 |
|
|
.close = sb_audio_close,
|
| 934 |
|
|
.output_block = sb_set_output_parms,
|
| 935 |
|
|
.start_input = sb_set_input_parms,
|
| 936 |
|
|
.prepare_for_input = sb1_audio_prepare_for_input,
|
| 937 |
|
|
.prepare_for_output = sb1_audio_prepare_for_output,
|
| 938 |
|
|
.halt_io = sb1_audio_halt_xfer,
|
| 939 |
|
|
.trigger = sb1_audio_trigger,
|
| 940 |
|
|
.set_speed = sb1_audio_set_speed,
|
| 941 |
|
|
.set_bits = sb1_audio_set_bits,
|
| 942 |
|
|
.set_channels = sb1_audio_set_channels
|
| 943 |
|
|
};
|
| 944 |
|
|
|
| 945 |
|
|
static struct audio_driver sb20_audio_driver = /* SB2.0 */
|
| 946 |
|
|
{
|
| 947 |
|
|
.owner = THIS_MODULE,
|
| 948 |
|
|
.open = sb_audio_open,
|
| 949 |
|
|
.close = sb_audio_close,
|
| 950 |
|
|
.output_block = sb_set_output_parms,
|
| 951 |
|
|
.start_input = sb_set_input_parms,
|
| 952 |
|
|
.prepare_for_input = sb1_audio_prepare_for_input,
|
| 953 |
|
|
.prepare_for_output = sb1_audio_prepare_for_output,
|
| 954 |
|
|
.halt_io = sb1_audio_halt_xfer,
|
| 955 |
|
|
.trigger = sb20_audio_trigger,
|
| 956 |
|
|
.set_speed = sb1_audio_set_speed,
|
| 957 |
|
|
.set_bits = sb1_audio_set_bits,
|
| 958 |
|
|
.set_channels = sb1_audio_set_channels
|
| 959 |
|
|
};
|
| 960 |
|
|
|
| 961 |
|
|
static struct audio_driver sb201_audio_driver = /* SB2.01 */
|
| 962 |
|
|
{
|
| 963 |
|
|
.owner = THIS_MODULE,
|
| 964 |
|
|
.open = sb_audio_open,
|
| 965 |
|
|
.close = sb_audio_close,
|
| 966 |
|
|
.output_block = sb_set_output_parms,
|
| 967 |
|
|
.start_input = sb_set_input_parms,
|
| 968 |
|
|
.prepare_for_input = sb1_audio_prepare_for_input,
|
| 969 |
|
|
.prepare_for_output = sb1_audio_prepare_for_output,
|
| 970 |
|
|
.halt_io = sb1_audio_halt_xfer,
|
| 971 |
|
|
.trigger = sb20_audio_trigger,
|
| 972 |
|
|
.set_speed = sb201_audio_set_speed,
|
| 973 |
|
|
.set_bits = sb1_audio_set_bits,
|
| 974 |
|
|
.set_channels = sb1_audio_set_channels
|
| 975 |
|
|
};
|
| 976 |
|
|
|
| 977 |
|
|
static struct audio_driver sbpro_audio_driver = /* SB Pro */
|
| 978 |
|
|
{
|
| 979 |
|
|
.owner = THIS_MODULE,
|
| 980 |
|
|
.open = sb_audio_open,
|
| 981 |
|
|
.close = sb_audio_close,
|
| 982 |
|
|
.output_block = sb_set_output_parms,
|
| 983 |
|
|
.start_input = sb_set_input_parms,
|
| 984 |
|
|
.prepare_for_input = sbpro_audio_prepare_for_input,
|
| 985 |
|
|
.prepare_for_output = sbpro_audio_prepare_for_output,
|
| 986 |
|
|
.halt_io = sb1_audio_halt_xfer,
|
| 987 |
|
|
.trigger = sb20_audio_trigger,
|
| 988 |
|
|
.set_speed = sbpro_audio_set_speed,
|
| 989 |
|
|
.set_bits = sb1_audio_set_bits,
|
| 990 |
|
|
.set_channels = sbpro_audio_set_channels
|
| 991 |
|
|
};
|
| 992 |
|
|
|
| 993 |
|
|
static struct audio_driver jazz16_audio_driver = /* Jazz16 and SM Wave */
|
| 994 |
|
|
{
|
| 995 |
|
|
.owner = THIS_MODULE,
|
| 996 |
|
|
.open = sb_audio_open,
|
| 997 |
|
|
.close = sb_audio_close,
|
| 998 |
|
|
.output_block = sb_set_output_parms,
|
| 999 |
|
|
.start_input = sb_set_input_parms,
|
| 1000 |
|
|
.prepare_for_input = sbpro_audio_prepare_for_input,
|
| 1001 |
|
|
.prepare_for_output = sbpro_audio_prepare_for_output,
|
| 1002 |
|
|
.halt_io = sb1_audio_halt_xfer,
|
| 1003 |
|
|
.trigger = sb20_audio_trigger,
|
| 1004 |
|
|
.set_speed = jazz16_audio_set_speed,
|
| 1005 |
|
|
.set_bits = sb16_audio_set_bits,
|
| 1006 |
|
|
.set_channels = sbpro_audio_set_channels
|
| 1007 |
|
|
};
|
| 1008 |
|
|
|
| 1009 |
|
|
static struct audio_driver sb16_audio_driver = /* SB16 */
|
| 1010 |
|
|
{
|
| 1011 |
|
|
.owner = THIS_MODULE,
|
| 1012 |
|
|
.open = sb_audio_open,
|
| 1013 |
|
|
.close = sb_audio_close,
|
| 1014 |
|
|
.output_block = sb_set_output_parms,
|
| 1015 |
|
|
.start_input = sb_set_input_parms,
|
| 1016 |
|
|
.prepare_for_input = sb16_audio_prepare_for_input,
|
| 1017 |
|
|
.prepare_for_output = sb16_audio_prepare_for_output,
|
| 1018 |
|
|
.halt_io = sb1_audio_halt_xfer,
|
| 1019 |
|
|
.copy_user = sb16_copy_from_user,
|
| 1020 |
|
|
.trigger = sb16_audio_trigger,
|
| 1021 |
|
|
.set_speed = sb16_audio_set_speed,
|
| 1022 |
|
|
.set_bits = sb16_audio_set_bits,
|
| 1023 |
|
|
.set_channels = sbpro_audio_set_channels,
|
| 1024 |
|
|
.mmap = sb16_audio_mmap
|
| 1025 |
|
|
};
|
| 1026 |
|
|
|
| 1027 |
|
|
void sb_audio_init(sb_devc * devc, char *name, struct module *owner)
|
| 1028 |
|
|
{
|
| 1029 |
|
|
int audio_flags = 0;
|
| 1030 |
|
|
int format_mask = AFMT_U8;
|
| 1031 |
|
|
|
| 1032 |
|
|
struct audio_driver *driver = &sb1_audio_driver;
|
| 1033 |
|
|
|
| 1034 |
|
|
switch (devc->model)
|
| 1035 |
|
|
{
|
| 1036 |
|
|
case MDL_SB1: /* SB1.0 or SB 1.5 */
|
| 1037 |
|
|
DDB(printk("Will use standard SB1.x driver\n"));
|
| 1038 |
|
|
audio_flags = DMA_HARDSTOP;
|
| 1039 |
|
|
break;
|
| 1040 |
|
|
|
| 1041 |
|
|
case MDL_SB2:
|
| 1042 |
|
|
DDB(printk("Will use SB2.0 driver\n"));
|
| 1043 |
|
|
audio_flags = DMA_AUTOMODE;
|
| 1044 |
|
|
driver = &sb20_audio_driver;
|
| 1045 |
|
|
break;
|
| 1046 |
|
|
|
| 1047 |
|
|
case MDL_SB201:
|
| 1048 |
|
|
DDB(printk("Will use SB2.01 (high speed) driver\n"));
|
| 1049 |
|
|
audio_flags = DMA_AUTOMODE;
|
| 1050 |
|
|
driver = &sb201_audio_driver;
|
| 1051 |
|
|
break;
|
| 1052 |
|
|
|
| 1053 |
|
|
case MDL_JAZZ:
|
| 1054 |
|
|
case MDL_SMW:
|
| 1055 |
|
|
DDB(printk("Will use Jazz16 driver\n"));
|
| 1056 |
|
|
audio_flags = DMA_AUTOMODE;
|
| 1057 |
|
|
format_mask |= AFMT_S16_LE;
|
| 1058 |
|
|
driver = &jazz16_audio_driver;
|
| 1059 |
|
|
break;
|
| 1060 |
|
|
|
| 1061 |
|
|
case MDL_ESS:
|
| 1062 |
|
|
DDB(printk("Will use ESS ES688/1688 driver\n"));
|
| 1063 |
|
|
driver = ess_audio_init (devc, &audio_flags, &format_mask);
|
| 1064 |
|
|
break;
|
| 1065 |
|
|
|
| 1066 |
|
|
case MDL_SB16:
|
| 1067 |
|
|
DDB(printk("Will use SB16 driver\n"));
|
| 1068 |
|
|
audio_flags = DMA_AUTOMODE;
|
| 1069 |
|
|
format_mask |= AFMT_S16_LE;
|
| 1070 |
|
|
if (devc->dma8 != devc->dma16 && devc->dma16 != -1)
|
| 1071 |
|
|
{
|
| 1072 |
|
|
audio_flags |= DMA_DUPLEX;
|
| 1073 |
|
|
devc->duplex = 1;
|
| 1074 |
|
|
}
|
| 1075 |
|
|
driver = &sb16_audio_driver;
|
| 1076 |
|
|
break;
|
| 1077 |
|
|
|
| 1078 |
|
|
default:
|
| 1079 |
|
|
DDB(printk("Will use SB Pro driver\n"));
|
| 1080 |
|
|
audio_flags = DMA_AUTOMODE;
|
| 1081 |
|
|
driver = &sbpro_audio_driver;
|
| 1082 |
|
|
}
|
| 1083 |
|
|
|
| 1084 |
|
|
if (owner)
|
| 1085 |
|
|
driver->owner = owner;
|
| 1086 |
|
|
|
| 1087 |
|
|
if ((devc->dev = sound_install_audiodrv(AUDIO_DRIVER_VERSION,
|
| 1088 |
|
|
name,driver, sizeof(struct audio_driver),
|
| 1089 |
|
|
audio_flags, format_mask, devc,
|
| 1090 |
|
|
devc->dma8,
|
| 1091 |
|
|
devc->duplex ? devc->dma16 : devc->dma8)) < 0)
|
| 1092 |
|
|
{
|
| 1093 |
|
|
printk(KERN_ERR "Sound Blaster: unable to install audio.\n");
|
| 1094 |
|
|
return;
|
| 1095 |
|
|
}
|
| 1096 |
|
|
audio_devs[devc->dev]->mixer_dev = devc->my_mixerdev;
|
| 1097 |
|
|
audio_devs[devc->dev]->min_fragment = 5;
|
| 1098 |
|
|
}
|
