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690 lines
19 KiB
690 lines
19 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/********************************************************************* |
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* |
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* 2002/06/30 Karsten Wiese: |
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* removed kernel-version dependencies. |
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* ripped from linux kernel 2.4.18 (OSS Implementation) by me. |
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* In the OSS Version, this file is compiled to a separate MODULE, |
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* that is used by the pinnacle and the classic driver. |
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* since there is no classic driver for alsa yet (i dont have a classic |
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* & writing one blindfold is difficult) this file's object is statically |
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* linked into the pinnacle-driver-module for now. look for the string |
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* "uncomment this to make this a module again" |
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* to do guess what. |
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* |
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* the following is a copy of the 2.4.18 OSS FREE file-heading comment: |
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* |
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* msnd.c - Driver Base |
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* |
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* Turtle Beach MultiSound Sound Card Driver for Linux |
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* |
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* Copyright (C) 1998 Andrew Veliath |
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* |
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********************************************************************/ |
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#include <linux/kernel.h> |
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#include <linux/sched/signal.h> |
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#include <linux/types.h> |
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#include <linux/interrupt.h> |
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#include <linux/io.h> |
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#include <linux/fs.h> |
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#include <linux/delay.h> |
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#include <linux/module.h> |
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#include <sound/core.h> |
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#include <sound/initval.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include "msnd.h" |
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#define LOGNAME "msnd" |
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void snd_msnd_init_queue(void __iomem *base, int start, int size) |
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{ |
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writew(PCTODSP_BASED(start), base + JQS_wStart); |
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writew(PCTODSP_OFFSET(size) - 1, base + JQS_wSize); |
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writew(0, base + JQS_wHead); |
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writew(0, base + JQS_wTail); |
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} |
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EXPORT_SYMBOL(snd_msnd_init_queue); |
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static int snd_msnd_wait_TXDE(struct snd_msnd *dev) |
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{ |
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unsigned int io = dev->io; |
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int timeout = 1000; |
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while (timeout-- > 0) |
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if (inb(io + HP_ISR) & HPISR_TXDE) |
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return 0; |
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return -EIO; |
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} |
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static int snd_msnd_wait_HC0(struct snd_msnd *dev) |
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{ |
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unsigned int io = dev->io; |
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int timeout = 1000; |
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while (timeout-- > 0) |
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if (!(inb(io + HP_CVR) & HPCVR_HC)) |
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return 0; |
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return -EIO; |
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} |
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int snd_msnd_send_dsp_cmd(struct snd_msnd *dev, u8 cmd) |
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{ |
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unsigned long flags; |
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spin_lock_irqsave(&dev->lock, flags); |
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if (snd_msnd_wait_HC0(dev) == 0) { |
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outb(cmd, dev->io + HP_CVR); |
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spin_unlock_irqrestore(&dev->lock, flags); |
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return 0; |
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} |
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spin_unlock_irqrestore(&dev->lock, flags); |
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snd_printd(KERN_ERR LOGNAME ": Send DSP command timeout\n"); |
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return -EIO; |
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} |
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EXPORT_SYMBOL(snd_msnd_send_dsp_cmd); |
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int snd_msnd_send_word(struct snd_msnd *dev, unsigned char high, |
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unsigned char mid, unsigned char low) |
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{ |
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unsigned int io = dev->io; |
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if (snd_msnd_wait_TXDE(dev) == 0) { |
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outb(high, io + HP_TXH); |
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outb(mid, io + HP_TXM); |
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outb(low, io + HP_TXL); |
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return 0; |
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} |
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snd_printd(KERN_ERR LOGNAME ": Send host word timeout\n"); |
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return -EIO; |
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} |
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EXPORT_SYMBOL(snd_msnd_send_word); |
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int snd_msnd_upload_host(struct snd_msnd *dev, const u8 *bin, int len) |
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{ |
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int i; |
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if (len % 3 != 0) { |
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snd_printk(KERN_ERR LOGNAME |
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": Upload host data not multiple of 3!\n"); |
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return -EINVAL; |
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} |
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for (i = 0; i < len; i += 3) |
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if (snd_msnd_send_word(dev, bin[i], bin[i + 1], bin[i + 2])) |
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return -EIO; |
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inb(dev->io + HP_RXL); |
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inb(dev->io + HP_CVR); |
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return 0; |
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} |
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EXPORT_SYMBOL(snd_msnd_upload_host); |
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int snd_msnd_enable_irq(struct snd_msnd *dev) |
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{ |
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unsigned long flags; |
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if (dev->irq_ref++) |
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return 0; |
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snd_printdd(LOGNAME ": Enabling IRQ\n"); |
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spin_lock_irqsave(&dev->lock, flags); |
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if (snd_msnd_wait_TXDE(dev) == 0) { |
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outb(inb(dev->io + HP_ICR) | HPICR_TREQ, dev->io + HP_ICR); |
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if (dev->type == msndClassic) |
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outb(dev->irqid, dev->io + HP_IRQM); |
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outb(inb(dev->io + HP_ICR) & ~HPICR_TREQ, dev->io + HP_ICR); |
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outb(inb(dev->io + HP_ICR) | HPICR_RREQ, dev->io + HP_ICR); |
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enable_irq(dev->irq); |
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snd_msnd_init_queue(dev->DSPQ, dev->dspq_data_buff, |
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dev->dspq_buff_size); |
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spin_unlock_irqrestore(&dev->lock, flags); |
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return 0; |
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} |
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spin_unlock_irqrestore(&dev->lock, flags); |
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snd_printd(KERN_ERR LOGNAME ": Enable IRQ failed\n"); |
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return -EIO; |
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} |
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EXPORT_SYMBOL(snd_msnd_enable_irq); |
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int snd_msnd_disable_irq(struct snd_msnd *dev) |
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{ |
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unsigned long flags; |
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if (--dev->irq_ref > 0) |
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return 0; |
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if (dev->irq_ref < 0) |
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snd_printd(KERN_WARNING LOGNAME ": IRQ ref count is %d\n", |
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dev->irq_ref); |
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snd_printdd(LOGNAME ": Disabling IRQ\n"); |
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spin_lock_irqsave(&dev->lock, flags); |
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if (snd_msnd_wait_TXDE(dev) == 0) { |
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outb(inb(dev->io + HP_ICR) & ~HPICR_RREQ, dev->io + HP_ICR); |
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if (dev->type == msndClassic) |
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outb(HPIRQ_NONE, dev->io + HP_IRQM); |
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disable_irq(dev->irq); |
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spin_unlock_irqrestore(&dev->lock, flags); |
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return 0; |
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} |
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spin_unlock_irqrestore(&dev->lock, flags); |
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snd_printd(KERN_ERR LOGNAME ": Disable IRQ failed\n"); |
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return -EIO; |
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} |
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EXPORT_SYMBOL(snd_msnd_disable_irq); |
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static inline long get_play_delay_jiffies(struct snd_msnd *chip, long size) |
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{ |
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long tmp = (size * HZ * chip->play_sample_size) / 8; |
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return tmp / (chip->play_sample_rate * chip->play_channels); |
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} |
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static void snd_msnd_dsp_write_flush(struct snd_msnd *chip) |
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{ |
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if (!(chip->mode & FMODE_WRITE) || !test_bit(F_WRITING, &chip->flags)) |
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return; |
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set_bit(F_WRITEFLUSH, &chip->flags); |
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/* interruptible_sleep_on_timeout( |
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&chip->writeflush, |
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get_play_delay_jiffies(&chip, chip->DAPF.len));*/ |
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clear_bit(F_WRITEFLUSH, &chip->flags); |
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if (!signal_pending(current)) |
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schedule_timeout_interruptible( |
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get_play_delay_jiffies(chip, chip->play_period_bytes)); |
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clear_bit(F_WRITING, &chip->flags); |
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} |
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void snd_msnd_dsp_halt(struct snd_msnd *chip, struct file *file) |
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{ |
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if ((file ? file->f_mode : chip->mode) & FMODE_READ) { |
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clear_bit(F_READING, &chip->flags); |
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snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_STOP); |
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snd_msnd_disable_irq(chip); |
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if (file) { |
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snd_printd(KERN_INFO LOGNAME |
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": Stopping read for %p\n", file); |
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chip->mode &= ~FMODE_READ; |
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} |
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clear_bit(F_AUDIO_READ_INUSE, &chip->flags); |
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} |
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if ((file ? file->f_mode : chip->mode) & FMODE_WRITE) { |
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if (test_bit(F_WRITING, &chip->flags)) { |
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snd_msnd_dsp_write_flush(chip); |
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snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_STOP); |
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} |
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snd_msnd_disable_irq(chip); |
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if (file) { |
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snd_printd(KERN_INFO |
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LOGNAME ": Stopping write for %p\n", file); |
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chip->mode &= ~FMODE_WRITE; |
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} |
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clear_bit(F_AUDIO_WRITE_INUSE, &chip->flags); |
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} |
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} |
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EXPORT_SYMBOL(snd_msnd_dsp_halt); |
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int snd_msnd_DARQ(struct snd_msnd *chip, int bank) |
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{ |
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int /*size, n,*/ timeout = 3; |
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u16 wTmp; |
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/* void *DAQD; */ |
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/* Increment the tail and check for queue wrap */ |
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wTmp = readw(chip->DARQ + JQS_wTail) + PCTODSP_OFFSET(DAQDS__size); |
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if (wTmp > readw(chip->DARQ + JQS_wSize)) |
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wTmp = 0; |
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while (wTmp == readw(chip->DARQ + JQS_wHead) && timeout--) |
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udelay(1); |
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if (chip->capturePeriods == 2) { |
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void __iomem *pDAQ = chip->mappedbase + DARQ_DATA_BUFF + |
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bank * DAQDS__size + DAQDS_wStart; |
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unsigned short offset = 0x3000 + chip->capturePeriodBytes; |
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if (readw(pDAQ) != PCTODSP_BASED(0x3000)) |
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offset = 0x3000; |
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writew(PCTODSP_BASED(offset), pDAQ); |
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} |
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writew(wTmp, chip->DARQ + JQS_wTail); |
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#if 0 |
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/* Get our digital audio queue struct */ |
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DAQD = bank * DAQDS__size + chip->mappedbase + DARQ_DATA_BUFF; |
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/* Get length of data */ |
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size = readw(DAQD + DAQDS_wSize); |
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/* Read data from the head (unprotected bank 1 access okay |
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since this is only called inside an interrupt) */ |
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outb(HPBLKSEL_1, chip->io + HP_BLKS); |
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n = msnd_fifo_write(&chip->DARF, |
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(char *)(chip->base + bank * DAR_BUFF_SIZE), |
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size, 0); |
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if (n <= 0) { |
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outb(HPBLKSEL_0, chip->io + HP_BLKS); |
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return n; |
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} |
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outb(HPBLKSEL_0, chip->io + HP_BLKS); |
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#endif |
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return 1; |
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} |
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EXPORT_SYMBOL(snd_msnd_DARQ); |
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int snd_msnd_DAPQ(struct snd_msnd *chip, int start) |
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{ |
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u16 DAPQ_tail; |
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int protect = start, nbanks = 0; |
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void __iomem *DAQD; |
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static int play_banks_submitted; |
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/* unsigned long flags; |
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spin_lock_irqsave(&chip->lock, flags); not necessary */ |
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DAPQ_tail = readw(chip->DAPQ + JQS_wTail); |
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while (DAPQ_tail != readw(chip->DAPQ + JQS_wHead) || start) { |
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int bank_num = DAPQ_tail / PCTODSP_OFFSET(DAQDS__size); |
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if (start) { |
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start = 0; |
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play_banks_submitted = 0; |
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} |
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/* Get our digital audio queue struct */ |
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DAQD = bank_num * DAQDS__size + chip->mappedbase + |
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DAPQ_DATA_BUFF; |
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/* Write size of this bank */ |
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writew(chip->play_period_bytes, DAQD + DAQDS_wSize); |
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if (play_banks_submitted < 3) |
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++play_banks_submitted; |
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else if (chip->playPeriods == 2) { |
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unsigned short offset = chip->play_period_bytes; |
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if (readw(DAQD + DAQDS_wStart) != PCTODSP_BASED(0x0)) |
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offset = 0; |
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writew(PCTODSP_BASED(offset), DAQD + DAQDS_wStart); |
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} |
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++nbanks; |
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/* Then advance the tail */ |
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/* |
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if (protect) |
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snd_printd(KERN_INFO "B %X %lX\n", |
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bank_num, xtime.tv_usec); |
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*/ |
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DAPQ_tail = (++bank_num % 3) * PCTODSP_OFFSET(DAQDS__size); |
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writew(DAPQ_tail, chip->DAPQ + JQS_wTail); |
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/* Tell the DSP to play the bank */ |
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snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_START); |
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if (protect) |
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if (2 == bank_num) |
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break; |
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} |
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/* |
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if (protect) |
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snd_printd(KERN_INFO "%lX\n", xtime.tv_usec); |
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*/ |
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/* spin_unlock_irqrestore(&chip->lock, flags); not necessary */ |
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return nbanks; |
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} |
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EXPORT_SYMBOL(snd_msnd_DAPQ); |
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static void snd_msnd_play_reset_queue(struct snd_msnd *chip, |
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unsigned int pcm_periods, |
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unsigned int pcm_count) |
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{ |
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int n; |
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void __iomem *pDAQ = chip->mappedbase + DAPQ_DATA_BUFF; |
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chip->last_playbank = -1; |
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chip->playLimit = pcm_count * (pcm_periods - 1); |
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chip->playPeriods = pcm_periods; |
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writew(PCTODSP_OFFSET(0 * DAQDS__size), chip->DAPQ + JQS_wHead); |
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writew(PCTODSP_OFFSET(0 * DAQDS__size), chip->DAPQ + JQS_wTail); |
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chip->play_period_bytes = pcm_count; |
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for (n = 0; n < pcm_periods; ++n, pDAQ += DAQDS__size) { |
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writew(PCTODSP_BASED((u32)(pcm_count * n)), |
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pDAQ + DAQDS_wStart); |
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writew(0, pDAQ + DAQDS_wSize); |
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writew(1, pDAQ + DAQDS_wFormat); |
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writew(chip->play_sample_size, pDAQ + DAQDS_wSampleSize); |
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writew(chip->play_channels, pDAQ + DAQDS_wChannels); |
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writew(chip->play_sample_rate, pDAQ + DAQDS_wSampleRate); |
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writew(HIMT_PLAY_DONE * 0x100 + n, pDAQ + DAQDS_wIntMsg); |
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writew(n, pDAQ + DAQDS_wFlags); |
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} |
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} |
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static void snd_msnd_capture_reset_queue(struct snd_msnd *chip, |
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unsigned int pcm_periods, |
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unsigned int pcm_count) |
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{ |
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int n; |
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void __iomem *pDAQ; |
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/* unsigned long flags; */ |
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/* snd_msnd_init_queue(chip->DARQ, DARQ_DATA_BUFF, DARQ_BUFF_SIZE); */ |
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chip->last_recbank = 2; |
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chip->captureLimit = pcm_count * (pcm_periods - 1); |
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chip->capturePeriods = pcm_periods; |
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writew(PCTODSP_OFFSET(0 * DAQDS__size), chip->DARQ + JQS_wHead); |
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writew(PCTODSP_OFFSET(chip->last_recbank * DAQDS__size), |
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chip->DARQ + JQS_wTail); |
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#if 0 /* Critical section: bank 1 access. this is how the OSS driver does it:*/ |
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spin_lock_irqsave(&chip->lock, flags); |
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outb(HPBLKSEL_1, chip->io + HP_BLKS); |
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memset_io(chip->mappedbase, 0, DAR_BUFF_SIZE * 3); |
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outb(HPBLKSEL_0, chip->io + HP_BLKS); |
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spin_unlock_irqrestore(&chip->lock, flags); |
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#endif |
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chip->capturePeriodBytes = pcm_count; |
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snd_printdd("snd_msnd_capture_reset_queue() %i\n", pcm_count); |
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pDAQ = chip->mappedbase + DARQ_DATA_BUFF; |
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for (n = 0; n < pcm_periods; ++n, pDAQ += DAQDS__size) { |
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u32 tmp = pcm_count * n; |
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writew(PCTODSP_BASED(tmp + 0x3000), pDAQ + DAQDS_wStart); |
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writew(pcm_count, pDAQ + DAQDS_wSize); |
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writew(1, pDAQ + DAQDS_wFormat); |
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writew(chip->capture_sample_size, pDAQ + DAQDS_wSampleSize); |
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writew(chip->capture_channels, pDAQ + DAQDS_wChannels); |
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writew(chip->capture_sample_rate, pDAQ + DAQDS_wSampleRate); |
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writew(HIMT_RECORD_DONE * 0x100 + n, pDAQ + DAQDS_wIntMsg); |
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writew(n, pDAQ + DAQDS_wFlags); |
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} |
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} |
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static const struct snd_pcm_hardware snd_msnd_playback = { |
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.info = SNDRV_PCM_INFO_MMAP | |
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SNDRV_PCM_INFO_INTERLEAVED | |
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SNDRV_PCM_INFO_MMAP_VALID | |
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SNDRV_PCM_INFO_BATCH, |
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.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, |
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.rates = SNDRV_PCM_RATE_8000_48000, |
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.rate_min = 8000, |
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.rate_max = 48000, |
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.channels_min = 1, |
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.channels_max = 2, |
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.buffer_bytes_max = 0x3000, |
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.period_bytes_min = 0x40, |
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.period_bytes_max = 0x1800, |
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.periods_min = 2, |
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.periods_max = 3, |
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.fifo_size = 0, |
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}; |
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static const struct snd_pcm_hardware snd_msnd_capture = { |
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.info = SNDRV_PCM_INFO_MMAP | |
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SNDRV_PCM_INFO_INTERLEAVED | |
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SNDRV_PCM_INFO_MMAP_VALID | |
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SNDRV_PCM_INFO_BATCH, |
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.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, |
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.rates = SNDRV_PCM_RATE_8000_48000, |
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.rate_min = 8000, |
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.rate_max = 48000, |
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.channels_min = 1, |
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.channels_max = 2, |
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.buffer_bytes_max = 0x3000, |
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.period_bytes_min = 0x40, |
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.period_bytes_max = 0x1800, |
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.periods_min = 2, |
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.periods_max = 3, |
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.fifo_size = 0, |
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}; |
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static int snd_msnd_playback_open(struct snd_pcm_substream *substream) |
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{ |
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struct snd_pcm_runtime *runtime = substream->runtime; |
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struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
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set_bit(F_AUDIO_WRITE_INUSE, &chip->flags); |
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clear_bit(F_WRITING, &chip->flags); |
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snd_msnd_enable_irq(chip); |
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runtime->dma_area = (__force void *)chip->mappedbase; |
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runtime->dma_bytes = 0x3000; |
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chip->playback_substream = substream; |
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runtime->hw = snd_msnd_playback; |
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return 0; |
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} |
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static int snd_msnd_playback_close(struct snd_pcm_substream *substream) |
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{ |
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struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
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snd_msnd_disable_irq(chip); |
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clear_bit(F_AUDIO_WRITE_INUSE, &chip->flags); |
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return 0; |
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} |
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static int snd_msnd_playback_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params) |
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{ |
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int i; |
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struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
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void __iomem *pDAQ = chip->mappedbase + DAPQ_DATA_BUFF; |
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chip->play_sample_size = snd_pcm_format_width(params_format(params)); |
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chip->play_channels = params_channels(params); |
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chip->play_sample_rate = params_rate(params); |
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for (i = 0; i < 3; ++i, pDAQ += DAQDS__size) { |
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writew(chip->play_sample_size, pDAQ + DAQDS_wSampleSize); |
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writew(chip->play_channels, pDAQ + DAQDS_wChannels); |
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writew(chip->play_sample_rate, pDAQ + DAQDS_wSampleRate); |
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} |
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/* dont do this here: |
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* snd_msnd_calibrate_adc(chip->play_sample_rate); |
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*/ |
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return 0; |
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} |
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static int snd_msnd_playback_prepare(struct snd_pcm_substream *substream) |
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{ |
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struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
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unsigned int pcm_size = snd_pcm_lib_buffer_bytes(substream); |
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unsigned int pcm_count = snd_pcm_lib_period_bytes(substream); |
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unsigned int pcm_periods = pcm_size / pcm_count; |
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|
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snd_msnd_play_reset_queue(chip, pcm_periods, pcm_count); |
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chip->playDMAPos = 0; |
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return 0; |
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} |
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|
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static int snd_msnd_playback_trigger(struct snd_pcm_substream *substream, |
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int cmd) |
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{ |
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struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
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int result = 0; |
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|
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if (cmd == SNDRV_PCM_TRIGGER_START) { |
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snd_printdd("snd_msnd_playback_trigger(START)\n"); |
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chip->banksPlayed = 0; |
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set_bit(F_WRITING, &chip->flags); |
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snd_msnd_DAPQ(chip, 1); |
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} else if (cmd == SNDRV_PCM_TRIGGER_STOP) { |
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snd_printdd("snd_msnd_playback_trigger(STop)\n"); |
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/* interrupt diagnostic, comment this out later */ |
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clear_bit(F_WRITING, &chip->flags); |
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snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_STOP); |
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} else { |
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snd_printd(KERN_ERR "snd_msnd_playback_trigger(?????)\n"); |
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result = -EINVAL; |
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} |
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|
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snd_printdd("snd_msnd_playback_trigger() ENDE\n"); |
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return result; |
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} |
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|
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static snd_pcm_uframes_t |
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snd_msnd_playback_pointer(struct snd_pcm_substream *substream) |
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{ |
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struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
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|
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return bytes_to_frames(substream->runtime, chip->playDMAPos); |
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} |
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|
|
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static const struct snd_pcm_ops snd_msnd_playback_ops = { |
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.open = snd_msnd_playback_open, |
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.close = snd_msnd_playback_close, |
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.hw_params = snd_msnd_playback_hw_params, |
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.prepare = snd_msnd_playback_prepare, |
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.trigger = snd_msnd_playback_trigger, |
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.pointer = snd_msnd_playback_pointer, |
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}; |
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|
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static int snd_msnd_capture_open(struct snd_pcm_substream *substream) |
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{ |
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struct snd_pcm_runtime *runtime = substream->runtime; |
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struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
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|
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set_bit(F_AUDIO_READ_INUSE, &chip->flags); |
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snd_msnd_enable_irq(chip); |
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runtime->dma_area = (__force void *)chip->mappedbase + 0x3000; |
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runtime->dma_bytes = 0x3000; |
|
memset(runtime->dma_area, 0, runtime->dma_bytes); |
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chip->capture_substream = substream; |
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runtime->hw = snd_msnd_capture; |
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return 0; |
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} |
|
|
|
static int snd_msnd_capture_close(struct snd_pcm_substream *substream) |
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{ |
|
struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
|
|
|
snd_msnd_disable_irq(chip); |
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clear_bit(F_AUDIO_READ_INUSE, &chip->flags); |
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return 0; |
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} |
|
|
|
static int snd_msnd_capture_prepare(struct snd_pcm_substream *substream) |
|
{ |
|
struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
|
unsigned int pcm_size = snd_pcm_lib_buffer_bytes(substream); |
|
unsigned int pcm_count = snd_pcm_lib_period_bytes(substream); |
|
unsigned int pcm_periods = pcm_size / pcm_count; |
|
|
|
snd_msnd_capture_reset_queue(chip, pcm_periods, pcm_count); |
|
chip->captureDMAPos = 0; |
|
return 0; |
|
} |
|
|
|
static int snd_msnd_capture_trigger(struct snd_pcm_substream *substream, |
|
int cmd) |
|
{ |
|
struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
|
|
|
if (cmd == SNDRV_PCM_TRIGGER_START) { |
|
chip->last_recbank = -1; |
|
set_bit(F_READING, &chip->flags); |
|
if (snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_START) == 0) |
|
return 0; |
|
|
|
clear_bit(F_READING, &chip->flags); |
|
} else if (cmd == SNDRV_PCM_TRIGGER_STOP) { |
|
clear_bit(F_READING, &chip->flags); |
|
snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_STOP); |
|
return 0; |
|
} |
|
return -EINVAL; |
|
} |
|
|
|
|
|
static snd_pcm_uframes_t |
|
snd_msnd_capture_pointer(struct snd_pcm_substream *substream) |
|
{ |
|
struct snd_pcm_runtime *runtime = substream->runtime; |
|
struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
|
|
|
return bytes_to_frames(runtime, chip->captureDMAPos); |
|
} |
|
|
|
|
|
static int snd_msnd_capture_hw_params(struct snd_pcm_substream *substream, |
|
struct snd_pcm_hw_params *params) |
|
{ |
|
int i; |
|
struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
|
void __iomem *pDAQ = chip->mappedbase + DARQ_DATA_BUFF; |
|
|
|
chip->capture_sample_size = snd_pcm_format_width(params_format(params)); |
|
chip->capture_channels = params_channels(params); |
|
chip->capture_sample_rate = params_rate(params); |
|
|
|
for (i = 0; i < 3; ++i, pDAQ += DAQDS__size) { |
|
writew(chip->capture_sample_size, pDAQ + DAQDS_wSampleSize); |
|
writew(chip->capture_channels, pDAQ + DAQDS_wChannels); |
|
writew(chip->capture_sample_rate, pDAQ + DAQDS_wSampleRate); |
|
} |
|
return 0; |
|
} |
|
|
|
|
|
static const struct snd_pcm_ops snd_msnd_capture_ops = { |
|
.open = snd_msnd_capture_open, |
|
.close = snd_msnd_capture_close, |
|
.hw_params = snd_msnd_capture_hw_params, |
|
.prepare = snd_msnd_capture_prepare, |
|
.trigger = snd_msnd_capture_trigger, |
|
.pointer = snd_msnd_capture_pointer, |
|
}; |
|
|
|
|
|
int snd_msnd_pcm(struct snd_card *card, int device) |
|
{ |
|
struct snd_msnd *chip = card->private_data; |
|
struct snd_pcm *pcm; |
|
int err; |
|
|
|
err = snd_pcm_new(card, "MSNDPINNACLE", device, 1, 1, &pcm); |
|
if (err < 0) |
|
return err; |
|
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_msnd_playback_ops); |
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_msnd_capture_ops); |
|
|
|
pcm->private_data = chip; |
|
strcpy(pcm->name, "Hurricane"); |
|
|
|
return 0; |
|
} |
|
EXPORT_SYMBOL(snd_msnd_pcm); |
|
|
|
MODULE_DESCRIPTION("Common routines for Turtle Beach Multisound drivers"); |
|
MODULE_LICENSE("GPL"); |
|
|
|
|