240 lines
6.1 KiB
C
240 lines
6.1 KiB
C
/* $NetBSD: linux_audio.c,v 1.5 1997/03/20 16:11:29 mycroft Exp $ */
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#include <sys/param.h>
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#include <sys/proc.h>
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#include <sys/systm.h>
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#include <sys/file.h>
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#include <sys/filedesc.h>
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#include <sys/ioctl.h>
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#include <sys/mount.h>
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#include <sys/audioio.h>
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#include <sys/syscallargs.h>
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#include <compat/linux/linux_types.h>
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#include <compat/linux/linux_ioctl.h>
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#include <compat/linux/linux_signal.h>
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#include <compat/linux/linux_syscallargs.h>
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#include <compat/linux/linux_audio.h>
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int
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linux_ioctl_audio(p, uap, retval)
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register struct proc *p;
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register struct linux_sys_ioctl_args /* {
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syscallarg(int) fd;
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syscallarg(u_long) com;
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syscallarg(caddr_t) data;
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} */ *uap;
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register_t *retval;
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{
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register struct file *fp;
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register struct filedesc *fdp;
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u_long com;
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struct audio_info tmpinfo;
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int idat;
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int error;
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fdp = p->p_fd;
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if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles ||
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(fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL)
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return (EBADF);
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if ((fp->f_flag & (FREAD | FWRITE)) == 0)
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return (EBADF);
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com = SCARG(uap, com);
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retval[0] = 0;
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switch (com) {
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case LINUX_SNDCTL_DSP_RESET:
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error = (*fp->f_ops->fo_ioctl)(fp, AUDIO_FLUSH, (caddr_t)0, p);
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if (error)
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return error;
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break;
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case LINUX_SNDCTL_DSP_SYNC:
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case LINUX_SNDCTL_DSP_POST:
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error = (*fp->f_ops->fo_ioctl)(fp, AUDIO_DRAIN, (caddr_t)0, p);
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if (error)
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return error;
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break;
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case LINUX_SNDCTL_DSP_SPEED:
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AUDIO_INITINFO(&tmpinfo);
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error = copyin(SCARG(uap, data), &idat, sizeof idat);
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if (error)
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return error;
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tmpinfo.play.sample_rate =
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tmpinfo.record.sample_rate = idat;
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(void) (*fp->f_ops->fo_ioctl)(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
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error = (*fp->f_ops->fo_ioctl)(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
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if (error)
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return error;
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idat = tmpinfo.play.sample_rate;
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error = copyout(&idat, SCARG(uap, data), sizeof idat);
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if (error)
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return error;
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break;
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case LINUX_SNDCTL_DSP_STEREO:
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AUDIO_INITINFO(&tmpinfo);
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error = copyin(SCARG(uap, data), &idat, sizeof idat);
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if (error)
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return error;
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tmpinfo.play.channels =
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tmpinfo.record.channels = idat ? 2 : 1;
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(void) (*fp->f_ops->fo_ioctl)(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
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error = (*fp->f_ops->fo_ioctl)(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
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if (error)
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return error;
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idat = tmpinfo.play.channels - 1;
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error = copyout(&idat, SCARG(uap, data), sizeof idat);
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if (error)
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return error;
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break;
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case LINUX_SNDCTL_DSP_CHANNELS:
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AUDIO_INITINFO(&tmpinfo);
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error = copyin(SCARG(uap, data), &idat, sizeof idat);
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if (error)
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return error;
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tmpinfo.play.channels =
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tmpinfo.record.channels = idat;
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(void) (*fp->f_ops->fo_ioctl)(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
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error = (*fp->f_ops->fo_ioctl)(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
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if (error)
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return error;
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idat = tmpinfo.play.channels;
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error = copyout(&idat, SCARG(uap, data), sizeof idat);
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if (error)
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return error;
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break;
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case LINUX_SNDCTL_DSP_GETBLKSIZE:
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error = (*fp->f_ops->fo_ioctl)(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
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if (error)
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return error;
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idat = tmpinfo.blocksize;
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error = copyout(&idat, SCARG(uap, data), sizeof idat);
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if (error)
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return error;
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break;
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case LINUX_SNDCTL_DSP_SETFMT:
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AUDIO_INITINFO(&tmpinfo);
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error = copyin(SCARG(uap, data), &idat, sizeof idat);
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if (error)
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return error;
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switch (idat) {
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case LINUX_AFMT_MU_LAW:
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tmpinfo.play.precision =
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tmpinfo.record.precision = 8;
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tmpinfo.play.encoding =
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tmpinfo.record.encoding = AUDIO_ENCODING_ULAW;
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break;
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case LINUX_AFMT_A_LAW:
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tmpinfo.play.precision =
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tmpinfo.record.precision = 8;
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tmpinfo.play.encoding =
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tmpinfo.record.encoding = AUDIO_ENCODING_ALAW;
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break;
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case LINUX_AFMT_U8:
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tmpinfo.play.precision =
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tmpinfo.record.precision = 8;
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tmpinfo.play.encoding =
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tmpinfo.record.encoding = AUDIO_ENCODING_LINEAR;
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break;
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case LINUX_AFMT_S16_LE:
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tmpinfo.play.precision =
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tmpinfo.record.precision = 16;
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tmpinfo.play.encoding =
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tmpinfo.record.encoding = AUDIO_ENCODING_LINEAR;
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break;
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default:
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return EINVAL;
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}
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(void) (*fp->f_ops->fo_ioctl)(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
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error = (*fp->f_ops->fo_ioctl)(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
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if (error)
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return error;
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switch (tmpinfo.play.encoding) {
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case AUDIO_ENCODING_ULAW:
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idat = LINUX_AFMT_MU_LAW;
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break;
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case AUDIO_ENCODING_ALAW:
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idat = LINUX_AFMT_A_LAW;
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break;
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case AUDIO_ENCODING_PCM16:
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idat = LINUX_AFMT_S16_LE;
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break;
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case AUDIO_ENCODING_PCM8:
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idat = LINUX_AFMT_U8;
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break;
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case AUDIO_ENCODING_ADPCM:
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idat = LINUX_AFMT_IMA_ADPCM;
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break;
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}
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error = copyout(&idat, SCARG(uap, data), sizeof idat);
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if (error)
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return error;
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break;
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case LINUX_SNDCTL_DSP_SETFRAGMENT:
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AUDIO_INITINFO(&tmpinfo);
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error = copyin(SCARG(uap, data), &idat, sizeof idat);
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if (error)
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return error;
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if ((idat & 0xffff) < 4 || (idat & 0xffff) > 17)
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return EINVAL;
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tmpinfo.blocksize = 1 << (idat & 0xffff);
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tmpinfo.hiwat = (idat >> 16) & 0xffff;
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(void) (*fp->f_ops->fo_ioctl)(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
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error = (*fp->f_ops->fo_ioctl)(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
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if (error)
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return error;
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idat = tmpinfo.blocksize;
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error = copyout(&idat, SCARG(uap, data), sizeof idat);
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if (error)
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return error;
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break;
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case LINUX_SNDCTL_DSP_GETFMTS:
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idat = LINUX_AFMT_MU_LAW | LINUX_AFMT_U8 | LINUX_AFMT_S16_LE;
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error = copyout(&idat, SCARG(uap, data), sizeof idat);
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if (error)
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return error;
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break;
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default:
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return EINVAL;
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}
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return 0;
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}
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int
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linux_ioctl_mixer(p, uap, retval)
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register struct proc *p;
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register struct linux_sys_ioctl_args /* {
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syscallarg(int) fd;
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syscallarg(u_long) com;
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syscallarg(caddr_t) data;
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} */ *uap;
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register_t *retval;
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{
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register struct file *fp;
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register struct filedesc *fdp;
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u_long com;
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#if 0
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struct audio_info tmpinfo;
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int idat;
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int error;
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#endif
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fdp = p->p_fd;
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if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles ||
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(fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL)
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return (EBADF);
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if ((fp->f_flag & (FREAD | FWRITE)) == 0)
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return (EBADF);
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com = SCARG(uap, com);
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retval[0] = 0;
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switch (com) {
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default:
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return EINVAL;
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}
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}
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