612 lines
16 KiB
C
612 lines
16 KiB
C
/* $NetBSD: ossaudio.c,v 1.9 1997/05/07 19:24:30 augustss 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/vnode.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/ossaudio/ossaudio.h>
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#include <compat/ossaudio/ossaudiovar.h>
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static struct audiodevinfo *getdevinfo __P((struct file *, struct proc *));
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int
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oss_ioctl_audio(p, uap, retval)
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register struct proc *p;
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register struct oss_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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int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *));
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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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ioctlf = fp->f_ops->fo_ioctl;
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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 OSS_SNDCTL_DSP_RESET:
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error = ioctlf(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 OSS_SNDCTL_DSP_SYNC:
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case OSS_SNDCTL_DSP_POST:
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error = ioctlf(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 OSS_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) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
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/* fall into ... */
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case OSS_SOUND_PCM_READ_RATE:
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error = ioctlf(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 OSS_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) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
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error = ioctlf(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 OSS_SNDCTL_DSP_GETBLKSIZE:
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error = ioctlf(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 OSS_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 OSS_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 OSS_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 OSS_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_ULINEAR;
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break;
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case OSS_AFMT_S8:
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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 OSS_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_LE;
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break;
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case OSS_AFMT_S16_BE:
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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_BE;
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break;
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case OSS_AFMT_U16_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_ULINEAR_LE;
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break;
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case OSS_AFMT_U16_BE:
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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_ULINEAR_BE;
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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) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
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/* fall into ... */
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case OSS_SOUND_PCM_READ_BITS:
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error = ioctlf(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 = OSS_AFMT_MU_LAW;
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break;
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case AUDIO_ENCODING_ALAW:
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idat = OSS_AFMT_A_LAW;
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break;
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case AUDIO_ENCODING_LINEAR_LE:
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if (tmpinfo.play.precision == 16)
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idat = OSS_AFMT_S16_LE;
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else
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idat = OSS_AFMT_S8;
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break;
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case AUDIO_ENCODING_LINEAR_BE:
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if (tmpinfo.play.precision == 16)
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idat = OSS_AFMT_S16_BE;
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else
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idat = OSS_AFMT_S8;
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break;
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case AUDIO_ENCODING_ULINEAR_LE:
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if (tmpinfo.play.precision == 16)
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idat = OSS_AFMT_U16_LE;
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else
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idat = OSS_AFMT_U8;
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break;
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case AUDIO_ENCODING_ULINEAR_BE:
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if (tmpinfo.play.precision == 16)
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idat = OSS_AFMT_U16_BE;
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else
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idat = OSS_AFMT_U8;
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break;
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case AUDIO_ENCODING_ADPCM:
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idat = OSS_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 OSS_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) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
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/* fall into ... */
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case OSS_SOUND_PCM_READ_CHANNELS:
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error = ioctlf(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 OSS_SOUND_PCM_WRITE_FILTER:
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case OSS_SOUND_PCM_READ_FILTER:
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return EINVAL; /* XXX unimplemented */
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case OSS_SNDCTL_DSP_SUBDIVIDE:
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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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error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
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if (error)
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return error;
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if (idat == 0)
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idat = tmpinfo.buffersize / tmpinfo.blocksize;
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idat = (tmpinfo.buffersize / idat) & -4;
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AUDIO_INITINFO(&tmpinfo);
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tmpinfo.blocksize = idat;
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error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
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if (error)
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return error;
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idat = tmpinfo.buffersize / 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 OSS_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) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
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error = ioctlf(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 OSS_SNDCTL_DSP_GETFMTS:
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idat = OSS_AFMT_MU_LAW | OSS_AFMT_U8 | OSS_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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case OSS_SNDCTL_DSP_GETOSPACE:
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case OSS_SNDCTL_DSP_GETISPACE:
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case OSS_SNDCTL_DSP_NONBLOCK:
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return EINVAL; /* XXX unimplemented */
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case OSS_SNDCTL_DSP_GETCAPS:
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idat = 0; /* XXX full duplex info should be set */
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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 OSS_SNDCTL_DSP_GETTRIGGER:
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case OSS_SNDCTL_DSP_SETTRIGGER:
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case OSS_SNDCTL_DSP_GETIPTR:
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case OSS_SNDCTL_DSP_GETOPTR:
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case OSS_SNDCTL_DSP_MAPINBUF:
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case OSS_SNDCTL_DSP_MAPOUTBUF:
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case OSS_SNDCTL_DSP_SETSYNCRO:
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case OSS_SNDCTL_DSP_SETDUPLEX:
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case OSS_SNDCTL_DSP_PROFILE:
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return EINVAL; /* XXX unimplemented */
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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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/* If the NetBSD mixer device should have more than 32 devices
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* some will not be available to Linux */
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#define NETBSD_MAXDEVS 32
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struct audiodevinfo {
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int done;
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dev_t dev;
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int16_t devmap[OSS_SOUND_MIXER_NRDEVICES],
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rdevmap[NETBSD_MAXDEVS];
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u_long devmask, recmask, stereomask;
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u_long caps, source;
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};
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/*
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* Collect the audio device information to allow faster
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* emulation of the Linux mixer ioctls. Cache the information
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* to eliminate the overhead of repeating all the ioctls needed
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* to collect the information.
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*/
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static struct audiodevinfo *
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getdevinfo(fp, p)
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struct file *fp;
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struct proc *p;
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{
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mixer_devinfo_t mi;
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int i;
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static struct {
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char *name;
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int code;
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} *dp, devs[] = {
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{ AudioNmicrophone, OSS_SOUND_MIXER_MIC },
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{ AudioNline, OSS_SOUND_MIXER_LINE },
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{ AudioNcd, OSS_SOUND_MIXER_CD },
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{ AudioNdac, OSS_SOUND_MIXER_PCM },
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{ AudioNrecord, OSS_SOUND_MIXER_IMIX },
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{ AudioNvolume, OSS_SOUND_MIXER_VOLUME },
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{ AudioNtreble, OSS_SOUND_MIXER_TREBLE },
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{ AudioNbass, OSS_SOUND_MIXER_BASS },
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{ AudioNspeaker, OSS_SOUND_MIXER_SPEAKER },
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/* { AudioNheadphone, ?? },*/
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{ AudioNoutput, OSS_SOUND_MIXER_OGAIN },
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{ AudioNinput, OSS_SOUND_MIXER_IGAIN },
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/* { AudioNmaster, OSS_SOUND_MIXER_MASTER },*/
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/* { AudioNstereo, ?? },*/
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/* { AudioNmono, ?? },*/
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/* { AudioNsource, ?? },*/
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{ AudioNfmsynth, OSS_SOUND_MIXER_SYNTH },
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/* { AudioNwave, OSS_SOUND_MIXER_PCM },*/
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/* { AudioNmidi, ?? },*/
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/* { AudioNmixerout, ?? },*/
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{ 0, -1 }
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};
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int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *)) =
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fp->f_ops->fo_ioctl;
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struct vnode *vp;
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struct vattr va;
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static struct audiodevinfo devcache = { 0 };
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struct audiodevinfo *di = &devcache;
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/* Figure out what device it is so we can check if the
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* cached data is valid.
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*/
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vp = (struct vnode *)fp->f_data;
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if (vp->v_type != VCHR)
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return 0;
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if (VOP_GETATTR(vp, &va, p->p_ucred, p))
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return 0;
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if (di->done && di->dev == va.va_rdev)
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return di;
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di->done = 1;
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di->dev = va.va_rdev;
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di->devmask = 0;
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di->recmask = 0;
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di->stereomask = 0;
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di->source = -1;
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di->caps = 0;
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for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++)
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di->devmap[i] = -1;
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for(i = 0; i < NETBSD_MAXDEVS; i++)
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di->rdevmap[i] = -1;
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for(i = 0; i < NETBSD_MAXDEVS; i++) {
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mi.index = i;
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if (ioctlf(fp, AUDIO_MIXER_DEVINFO, (caddr_t)&mi, p) < 0)
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break;
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switch(mi.type) {
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case AUDIO_MIXER_VALUE:
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for(dp = devs; dp->name; dp++)
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if (strcmp(dp->name, mi.label.name) == 0)
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break;
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if (dp->code >= 0) {
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di->devmap[dp->code] = i;
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di->rdevmap[i] = dp->code;
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di->devmask |= 1 << dp->code;
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if (mi.un.v.num_channels == 2)
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di->stereomask |= 1 << dp->code;
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}
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break;
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case AUDIO_MIXER_ENUM:
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if (strcmp(mi.label.name, AudioNsource) == 0) {
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int j;
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di->source = i;
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for(j = 0; j < mi.un.e.num_mem; j++) {
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di->recmask |= 1 << di->rdevmap[mi.un.e.member[j].ord];
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}
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di->caps = OSS_SOUND_CAP_EXCL_INPUT;
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}
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break;
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case AUDIO_MIXER_SET:
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if (strcmp(mi.label.name, AudioNsource) == 0) {
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int j;
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di->source = i;
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for(j = 0; j < mi.un.s.num_mem; j++) {
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int k, mask = mi.un.s.member[j].mask;
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if (mask) {
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for(k = 0; !(mask & (1<<k)); k++)
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;
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di->recmask |= 1 << di->rdevmap[k];
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}
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}
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}
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break;
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}
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}
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return di;
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}
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int
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oss_ioctl_mixer(p, uap, retval)
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register struct proc *p;
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register struct oss_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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struct file *fp;
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struct filedesc *fdp;
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u_long com;
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struct audiodevinfo *di;
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mixer_ctrl_t mc;
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int idat;
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int i;
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int error;
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int l, r, n;
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int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *));
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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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di = getdevinfo(fp, p);
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if (di == 0)
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return EINVAL;
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ioctlf = fp->f_ops->fo_ioctl;
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switch (com) {
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case OSS_SOUND_MIXER_READ_RECSRC:
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if (di->source == -1)
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return EINVAL;
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mc.dev = di->source;
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if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) {
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mc.type = AUDIO_MIXER_ENUM;
|
|
error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p);
|
|
if (error)
|
|
return error;
|
|
idat = 1 << di->rdevmap[mc.un.ord];
|
|
} else {
|
|
int k;
|
|
unsigned int mask;
|
|
mc.type = AUDIO_MIXER_SET;
|
|
error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p);
|
|
if (error)
|
|
return error;
|
|
idat = 0;
|
|
for(mask = mc.un.mask, k = 0; mask; mask >>= 1, k++)
|
|
idat |= 1 << di->rdevmap[k];
|
|
}
|
|
break;
|
|
case OSS_SOUND_MIXER_READ_DEVMASK:
|
|
idat = di->devmask;
|
|
break;
|
|
case OSS_SOUND_MIXER_READ_RECMASK:
|
|
idat = di->recmask;
|
|
break;
|
|
case OSS_SOUND_MIXER_READ_STEREODEVS:
|
|
idat = di->stereomask;
|
|
break;
|
|
case OSS_SOUND_MIXER_READ_CAPS:
|
|
idat = di->caps;
|
|
break;
|
|
case OSS_SOUND_MIXER_WRITE_RECSRC:
|
|
if (di->source == -1)
|
|
return EINVAL;
|
|
mc.dev = di->source;
|
|
error = copyin(SCARG(uap, data), &idat, sizeof idat);
|
|
if (error)
|
|
return error;
|
|
if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) {
|
|
mc.type = AUDIO_MIXER_ENUM;
|
|
for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++)
|
|
if (idat & (1 << i))
|
|
break;
|
|
if (i >= OSS_SOUND_MIXER_NRDEVICES ||
|
|
di->devmap[i] == -1)
|
|
return EINVAL;
|
|
mc.un.ord = di->devmap[i];
|
|
} else {
|
|
mc.type = AUDIO_MIXER_SET;
|
|
for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++)
|
|
if (idat & (1 << i)) {
|
|
if (di->devmap[i] == -1)
|
|
return EINVAL;
|
|
mc.un.mask |= 1 << di->devmap[i];
|
|
}
|
|
}
|
|
return ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, p);
|
|
default:
|
|
if (OSS_MIXER_READ(OSS_SOUND_MIXER_FIRST) <= com &&
|
|
com < OSS_MIXER_READ(OSS_SOUND_MIXER_NRDEVICES)) {
|
|
n = OSS_GET_DEV(com);
|
|
if (di->devmap[n] == -1)
|
|
return EINVAL;
|
|
mc.dev = di->devmap[n];
|
|
mc.type = AUDIO_MIXER_VALUE;
|
|
doread:
|
|
mc.un.value.num_channels = di->stereomask & (1<<n) ? 2 : 1;
|
|
error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p);
|
|
if (error)
|
|
return error;
|
|
if (mc.type != AUDIO_MIXER_VALUE)
|
|
return EINVAL;
|
|
if (mc.un.value.num_channels != 2) {
|
|
l = r = mc.un.value.level[AUDIO_MIXER_LEVEL_MONO];
|
|
} else {
|
|
l = mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT];
|
|
r = mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
|
|
}
|
|
l = l * 100 / 255;
|
|
r = r * 100 / 255;
|
|
idat = l | (r << 8);
|
|
break;
|
|
} else if (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com &&
|
|
com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES)) {
|
|
n = OSS_GET_DEV(com);
|
|
if (di->devmap[n] == -1)
|
|
return EINVAL;
|
|
error = copyin(SCARG(uap, data), &idat, sizeof idat);
|
|
if (error)
|
|
return error;
|
|
l = (idat & 0xff) * 255 / 100;
|
|
r = (idat >> 8) * 255 / 100;
|
|
mc.dev = di->devmap[n];
|
|
mc.type = AUDIO_MIXER_VALUE;
|
|
if (di->stereomask & (1<<n)) {
|
|
mc.un.value.num_channels = 2;
|
|
mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l;
|
|
mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r;
|
|
} else {
|
|
mc.un.value.num_channels = 1;
|
|
mc.un.value.level[AUDIO_MIXER_LEVEL_MONO] = (l+r)/2;
|
|
}
|
|
error = ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, p);
|
|
if (error)
|
|
return error;
|
|
goto doread;
|
|
} else
|
|
return EINVAL;
|
|
}
|
|
return copyout(&idat, SCARG(uap, data), sizeof idat);
|
|
}
|
|
|
|
/* XXX hook for sequencer emulation */
|
|
int
|
|
oss_ioctl_sequencer(p, uap, retval)
|
|
register struct proc *p;
|
|
register struct oss_sys_ioctl_args /* {
|
|
syscallarg(int) fd;
|
|
syscallarg(u_long) com;
|
|
syscallarg(caddr_t) data;
|
|
} */ *uap;
|
|
register_t *retval;
|
|
{
|
|
register struct file *fp;
|
|
register struct filedesc *fdp;
|
|
#if 0
|
|
u_long com;
|
|
int idat;
|
|
int error;
|
|
#endif
|
|
|
|
fdp = p->p_fd;
|
|
if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles ||
|
|
(fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL)
|
|
return (EBADF);
|
|
|
|
if ((fp->f_flag & (FREAD | FWRITE)) == 0)
|
|
return (EBADF);
|
|
|
|
#if 0
|
|
com = SCARG(uap, com);
|
|
#endif
|
|
retval[0] = 0;
|
|
|
|
return EINVAL;
|
|
}
|