603 lines
15 KiB
C
603 lines
15 KiB
C
/*
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* sound/386bsd/soundcard.c
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*
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* Soundcard driver for 386BSD.
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*
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* Copyright by Hannu Savolainen 1993
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer. 2.
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <i386/isa/sound/sound_config.h>
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#if NSND > 0 /* from "snd.h" */
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <sys/mman.h>
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#include <i386/isa/isa_device.h>
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/*
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** Register definitions for DMA controller 1 (channels 0..3):
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*/
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#define DMA1_CHN(c) (IO_DMA1 + 1*(2*(c))) /* addr reg for channel c */
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#define DMA1_SMSK (IO_DMA1 + 1*10) /* single mask register */
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#define DMA1_MODE (IO_DMA1 + 1*11) /* mode register */
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#define DMA1_FFC (IO_DMA1 + 1*12) /* clear first/last FF */
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/*
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** Register definitions for DMA controller 2 (channels 4..7):
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*/
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#define DMA2_CHN(c) (IO_DMA2 + 2*(2*(c))) /* addr reg for channel c */
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#define DMA2_SMSK (IO_DMA2 + 2*10) /* single mask register */
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#define DMA2_MODE (IO_DMA2 + 2*11) /* mode register */
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#define DMA2_FFC (IO_DMA2 + 2*12) /* clear first/last FF */
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#define FIX_RETURN(ret) {if ((ret)<0) return -(ret); else return 0;}
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static int soundcards_installed = 0; /* Number of installed soundcards */
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static int soundcard_configured = 0;
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static struct fileinfo files[SND_NDEVS];
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struct selinfo selinfo[SND_NDEVS >> 4];
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int
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MIDIbuf_poll (int dev, struct fileinfo *file, int events, select_table * wait);
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int
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audio_poll(int dev, struct fileinfo * file, int events, select_table * wait);
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int
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sequencer_poll (int dev, struct fileinfo *file, int events, select_table * wait);
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static int sndprobe __P((struct isa_device *));
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static int sndattach __P((struct isa_device *));
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static int sndmmap __P((dev_t dev, int offset, int nprot ));
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static d_open_t sndopen;
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static d_close_t sndclose;
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static d_ioctl_t sndioctl;
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static d_read_t sndread;
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static d_write_t sndwrite;
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static d_poll_t sndpoll;
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static char driver_name[] = "snd";
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#define CDEV_MAJOR 30
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static struct cdevsw snd_cdevsw = {
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sndopen, sndclose, sndread, sndwrite,
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sndioctl, nxstop, nxreset, nxdevtotty,
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sndpoll, sndmmap, nxstrategy, driver_name,
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NULL, -1,
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};
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static void sound_mem_init(void);
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/*
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* for each "device XXX" entry in the config file, we have
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* a struct isa_driver which is linked into isa_devtab_null[]
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*
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* XXX It is a bit stupid to call the generic routine so many times and
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* switch then to the specific one, but the alternative way would be
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* to replicate some code in the probe/attach routines.
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*/
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struct isa_driver opldriver = {sndprobe, sndattach, "opl"};
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struct isa_driver trixdriver = {sndprobe, sndattach, "trix"};
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struct isa_driver trixsbdriver = {sndprobe, sndattach, "trixsb"};
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struct isa_driver sbdriver = {sndprobe, sndattach, "sb"};
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struct isa_driver sbxvidriver = {sndprobe, sndattach, "sbxvi"};
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struct isa_driver sbmididriver = {sndprobe, sndattach, "sbmidi"};
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struct isa_driver awedriver = {sndprobe, sndattach, "awe"};
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struct isa_driver pasdriver = {sndprobe, sndattach, "pas"};
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struct isa_driver mpudriver = {sndprobe, sndattach, "mpu"};
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struct isa_driver gusdriver = {sndprobe, sndattach, "gus"};
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struct isa_driver gusxvidriver = {sndprobe, sndattach, "gusxvi"};
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struct isa_driver gusmaxdriver = {sndprobe, sndattach, "gusmax"};
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struct isa_driver uartdriver = {sndprobe, sndattach, "uart"};
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struct isa_driver mssdriver = {sndprobe, sndattach, "mss"};
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struct isa_driver cssdriver = {sndprobe, sndattach, "css"};
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struct isa_driver sscapedriver = {sndprobe, sndattach, "sscape"};
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struct isa_driver sscape_mssdriver = {sndprobe, sndattach, "sscape_mss"};
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short ipri_to_irq(u_short ipri);
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u_long
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get_time(void)
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{
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struct timeval timecopy;
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getmicrotime(&timecopy);
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return timecopy.tv_usec / (1000000 / hz) +
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(u_long) timecopy.tv_sec * hz;
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}
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static int
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sndmmap( dev_t dev, int offset, int nprot )
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{
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int unit;
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struct dma_buffparms * dmap;
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dev = minor(dev) >> 4;
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if (dev > 0 ) return (-1);
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dmap = audio_devs[dev]->dmap_out;
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if (nprot & PROT_EXEC)
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return( -1 );
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dmap->mapping_flags |= DMA_MAP_MAPPED ;
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return( i386_btop(vtophys(dmap->raw_buf) + offset) );
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}
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static int
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sndread(dev_t dev, struct uio * buf, int flag)
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{
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int count = buf->uio_resid;
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dev = minor(dev);
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FIX_RETURN(sound_read_sw(dev, &files[dev], buf, count));
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}
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static int
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sndwrite(dev_t dev, struct uio * buf, int flag)
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{
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int count = buf->uio_resid;
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dev = minor(dev);
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FIX_RETURN(sound_write_sw(dev, &files[dev], buf, count));
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}
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static int
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sndopen(dev_t dev, int flags, int mode, struct proc * p)
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{
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int retval;
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struct fileinfo tmp_file;
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dev = minor(dev);
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if (!soundcard_configured && dev) {
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printf("SoundCard Error: soundcard system has not been configured\n");
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return ENODEV ;
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}
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tmp_file.mode = 0;
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if (flags & FREAD && flags & FWRITE)
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tmp_file.mode = OPEN_READWRITE;
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else if (flags & FREAD)
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tmp_file.mode = OPEN_READ;
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else if (flags & FWRITE)
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tmp_file.mode = OPEN_WRITE;
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selinfo[dev >> 4].si_pid = 0;
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selinfo[dev >> 4].si_flags = 0;
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if ((retval = sound_open_sw(dev, &tmp_file)) < 0)
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FIX_RETURN(retval);
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bcopy((char *) &tmp_file, (char *) &files[dev], sizeof(tmp_file));
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FIX_RETURN(retval);
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}
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static int
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sndclose(dev_t dev, int flags, int mode, struct proc * p)
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{
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dev = minor(dev);
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sound_release_sw(dev, &files[dev]);
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return 0 ;
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}
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static int
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sndioctl(dev_t dev, int cmd, caddr_t arg, int mode, struct proc * p)
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{
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dev = minor(dev);
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FIX_RETURN(sound_ioctl_sw(dev, &files[dev], cmd, arg));
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}
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int
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sndpoll(dev_t dev, int events, struct proc * p)
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{
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dev = minor(dev);
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dev = minor(dev);
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/* printf ("snd_select(dev=%d, rw=%d, pid=%d)\n", dev, rw, p->p_pid); */
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#ifdef ALLOW_POLL
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switch (dev & 0x0f) {
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#ifdef CONFIG_SEQUENCER
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case SND_DEV_SEQ:
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case SND_DEV_SEQ2:
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return sequencer_poll(dev, &files[dev], events, p);
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break;
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#endif
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#ifdef CONFIG_MIDI
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case SND_DEV_MIDIN:
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return MIDIbuf_poll(dev, &files[dev], events, p);
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break;
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#endif
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#ifdef CONFIG_AUDIO
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case SND_DEV_DSP:
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case SND_DEV_DSP16:
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case SND_DEV_AUDIO:
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return audio_poll(dev, &files[dev], events, p);
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break;
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#endif
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default:
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return 0;
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}
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#endif /* ALLOW_POLL */
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DEB(printf("sound_ioctl(dev=%d, cmd=0x%x, arg=0x%x)\n", dev, cmd, arg));
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return 0 ;
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}
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/* XXX this should become ffs(ipri), perhaps -1 lr 970705 */
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short
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ipri_to_irq(u_short ipri)
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{
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/*
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* Converts the ipri (bitmask) to the corresponding irq number
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*/
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int irq;
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for (irq = 0; irq < 16; irq++)
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if (ipri == (1 << irq))
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return irq;
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return -1; /* Invalid argument */
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}
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static int
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driver_to_voxunit(struct isa_driver * driver)
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{
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/*
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* converts a sound driver pointer into the equivalent VoxWare device
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* unit number
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*/
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if (driver == &opldriver)
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return (SNDCARD_ADLIB);
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else if (driver == &sbdriver)
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return (SNDCARD_SB);
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else if (driver == &pasdriver)
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return (SNDCARD_PAS);
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else if (driver == &gusdriver)
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return (SNDCARD_GUS);
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else if (driver == &mpudriver)
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return (SNDCARD_MPU401);
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else if (driver == &sbxvidriver)
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return (SNDCARD_SB16);
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else if (driver == &sbmididriver)
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return (SNDCARD_SB16MIDI);
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else if(driver == &awedriver)
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return(SNDCARD_AWE32);
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else if (driver == &uartdriver)
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return (SNDCARD_UART6850);
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else if (driver == &gusdriver)
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return (SNDCARD_GUS16);
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else if (driver == &mssdriver)
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return (SNDCARD_MSS);
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else if (driver == &cssdriver)
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return (SNDCARD_CS4232);
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else if (driver == &sscapedriver)
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return(SNDCARD_SSCAPE);
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else if (driver == &sscape_mssdriver)
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return(SNDCARD_SSCAPE_MSS);
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else if (driver == &trixdriver)
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return (SNDCARD_TRXPRO);
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else if (driver == &trixsbdriver)
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return (SNDCARD_TRXPRO_SB);
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else
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return (0);
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}
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/*
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* very dirty: tmp_osp is allocated in sndprobe, and used at the next
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* call in sndattach
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*/
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static sound_os_info *temp_osp;
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/*
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* sndprobe is called for each isa_device. From here, a voxware unit
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* number is determined, and the appropriate probe routine is selected.
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* The parameters from the config line are passed to the hw_config struct.
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*/
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static int
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sndprobe(struct isa_device * dev)
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{
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struct address_info hw_config;
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int unit;
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temp_osp = (sound_os_info *)malloc(sizeof(sound_os_info),
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M_DEVBUF, M_NOWAIT);
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if (!temp_osp)
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panic("SOUND: Cannot allocate memory\n");
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/*
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* get config info from the kernel config. These may be overridden
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* by the local autoconfiguration routines though (e.g. pnp stuff).
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*/
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hw_config.io_base = dev->id_iobase;
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hw_config.irq = ipri_to_irq(dev->id_irq);
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hw_config.dma = dev->id_drq;
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/*
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* misuse the flags field for read dma. Note that, to use 0 as
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* read dma channel, one of the high bits should be set. lr970705 XXX
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*/
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if (dev->id_flags != 0)
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hw_config.dma2 = dev->id_flags & 0x7;
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else
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hw_config.dma2 = -1;
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hw_config.always_detect = 0;
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hw_config.name = NULL;
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hw_config.card_subtype = 0;
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temp_osp->unit = dev->id_unit;
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hw_config.osp = temp_osp;
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unit = driver_to_voxunit(dev->id_driver);
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if (sndtable_probe(unit, &hw_config)) {
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dev->id_iobase = hw_config.io_base;
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dev->id_irq = hw_config.irq == -1 ? 0 : (1 << hw_config.irq);
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dev->id_drq = hw_config.dma;
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if (hw_config.dma != hw_config.dma2 && ( hw_config.dma2 != -1))
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dev->id_flags = hw_config.dma2 | 0x100; /* XXX lr */
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else
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dev->id_flags = 0;
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return TRUE;
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}
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return 0;
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}
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static int
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sndattach(struct isa_device * dev)
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{
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int unit;
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static int midi_initialized = 0;
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static int seq_initialized = 0;
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struct address_info hw_config;
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unit = driver_to_voxunit(dev->id_driver);
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hw_config.io_base = dev->id_iobase;
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hw_config.irq = ipri_to_irq(dev->id_irq);
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hw_config.dma = dev->id_drq;
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/* misuse the flags field for read dma */
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if (dev->id_flags != 0)
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hw_config.dma2 = dev->id_flags & 0x7;
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else
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hw_config.dma2 = -1;
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hw_config.card_subtype = 0;
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hw_config.osp = temp_osp;
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if (!unit)
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return FALSE;
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if (!(sndtable_init_card(unit, &hw_config))) { /* init card */
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printf(" <Driver not configured>");
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return FALSE;
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}
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/*
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* Init the high level sound driver
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*/
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if (!(soundcards_installed = sndtable_get_cardcount())) {
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DDB(printf("No drivers actually installed\n"));
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return FALSE; /* No cards detected */
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}
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printf("\n");
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#ifdef CONFIG_AUDIO
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if (num_audiodevs) { /* Audio devices present */
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DMAbuf_init();
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sound_mem_init();
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}
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soundcard_configured = 1;
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#endif
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if (num_midis && !midi_initialized)
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midi_initialized = 1;
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if ((num_midis + num_synths) && !seq_initialized) {
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seq_initialized = 1;
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sequencer_init();
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}
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{
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dev_t dev;
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dev = makedev(CDEV_MAJOR, 0);
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cdevsw_add(&dev, &snd_cdevsw, NULL);
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}
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return TRUE;
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}
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#ifdef CONFIG_AUDIO
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static void
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alloc_dmap(int dev, int chan, struct dma_buffparms * dmap)
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{
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char *tmpbuf;
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int i;
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tmpbuf = contigmalloc(audio_devs[dev]->buffsize, M_DEVBUF, M_NOWAIT,
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0ul, 0xfffffful, 1ul, chan & 4 ? 0x20000ul : 0x10000ul);
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if (tmpbuf == NULL)
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printf("soundcard buffer alloc failed \n");
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if (tmpbuf == NULL) {
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printf("snd: Unable to allocate %d bytes of buffer\n",
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2 * (int) audio_devs[dev]->buffsize);
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return;
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}
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dmap->raw_buf = tmpbuf;
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/*
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* Use virtual address as the physical address, since isa_dmastart
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* performs the phys address computation.
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*/
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dmap->raw_buf_phys = (u_long) tmpbuf;
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for (i = 0; i < audio_devs[dev]->buffsize; i++) *tmpbuf++ = 0x80;
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}
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static void
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sound_mem_init(void)
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{
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int dev;
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static u_long dsp_init_mask = 0;
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for (dev = 0; dev < num_audiodevs; dev++) /* Enumerate devices */
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if (!(dsp_init_mask & (1 << dev))) /* Not already done */
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if (audio_devs[dev]->dmachan1 >= 0) {
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dsp_init_mask |= (1 << dev);
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audio_devs[dev]->buffsize = DSP_BUFFSIZE;
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/* Now allocate the buffers */
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alloc_dmap(dev, audio_devs[dev]->dmachan1,
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audio_devs[dev]->dmap_out);
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if (audio_devs[dev]->flags & DMA_DUPLEX)
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alloc_dmap(dev, audio_devs[dev]->dmachan2,
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audio_devs[dev]->dmap_in);
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} /* for dev */
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}
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#endif
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int
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snd_ioctl_return(int *addr, int value)
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{
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if (value < 0)
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return value; /* Error */
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suword(addr, value);
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return 0;
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}
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#define MAX_UNIT 50
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typedef void (*irq_proc_t) (int irq);
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static irq_proc_t irq_proc[MAX_UNIT] = {NULL};
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static int irq_irq[MAX_UNIT] = {0};
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int
|
|
snd_set_irq_handler(int int_lvl, void (*hndlr) (int), sound_os_info * osp)
|
|
{
|
|
if (osp->unit >= MAX_UNIT) {
|
|
printf("Sound error: Unit number too high (%d)\n", osp->unit);
|
|
return 0;
|
|
}
|
|
irq_proc[osp->unit] = hndlr;
|
|
irq_irq[osp->unit] = int_lvl;
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
sndintr(int unit)
|
|
{
|
|
if ( (unit >= MAX_UNIT) || (irq_proc[unit] == NULL) )
|
|
return;
|
|
|
|
irq_proc[unit] (irq_irq[unit]); /* Call the installed handler */
|
|
}
|
|
|
|
void
|
|
conf_printf(char *name, struct address_info * hw_config)
|
|
{
|
|
if (!trace_init)
|
|
return;
|
|
|
|
printf("snd0: <%s> ", name);
|
|
#if 0
|
|
if (hw_config->io_base != -1 )
|
|
printf("at 0x%03x", hw_config->io_base);
|
|
|
|
if (hw_config->irq != -1 )
|
|
printf(" irq %d", hw_config->irq);
|
|
|
|
if (hw_config->dma != -1 || hw_config->dma2 != -1) {
|
|
printf(" dma %d", hw_config->dma);
|
|
if (hw_config->dma2 != -1)
|
|
printf(",%d", hw_config->dma2);
|
|
}
|
|
#endif
|
|
|
|
}
|
|
|
|
void
|
|
conf_printf2(char *name, int base, int irq, int dma, int dma2)
|
|
{
|
|
if (!trace_init)
|
|
return;
|
|
|
|
printf("snd0: <%s> ", name);
|
|
#if 0
|
|
if (hw_config->io_base != -1 )
|
|
printf("at 0x%03x", hw_config->io_base);
|
|
|
|
if (irq)
|
|
printf(" irq %d", irq);
|
|
|
|
if (dma != -1 || dma2 != -1) {
|
|
printf(" dma %d", dma);
|
|
if (dma2 != -1)
|
|
printf(",%d", dma2);
|
|
}
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
void tenmicrosec (int j)
|
|
{
|
|
int i, k;
|
|
for (k = 0; k < j/10 ; k++) {
|
|
for (i = 0; i < 16; i++)
|
|
inb (0x80);
|
|
}
|
|
}
|
|
|
|
#endif /* NSND > 0 */
|
|
|
|
|
|
|
|
|