summaryrefslogtreecommitdiff
path: root/sys/i386/isa/sound/sound_switch.c
diff options
context:
space:
mode:
Diffstat (limited to 'sys/i386/isa/sound/sound_switch.c')
-rw-r--r--sys/i386/isa/sound/sound_switch.c445
1 files changed, 445 insertions, 0 deletions
diff --git a/sys/i386/isa/sound/sound_switch.c b/sys/i386/isa/sound/sound_switch.c
new file mode 100644
index 0000000000000..68c757586083e
--- /dev/null
+++ b/sys/i386/isa/sound/sound_switch.c
@@ -0,0 +1,445 @@
+/*
+ * sound/sound_switch.c
+ *
+ * The system call switch
+ *
+ * Copyright by Hannu Savolainen 1993
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer. 2.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include "sound_config.h"
+
+#ifdef CONFIGURE_SOUNDCARD
+
+struct sbc_device
+ {
+ int usecount;
+ };
+
+static struct sbc_device sbc_devices[SND_NDEVS] =
+{
+ {0}};
+
+static int in_use = 0; /* Total # of open device files (excluding
+
+ * minor 0) */
+
+/*
+ * /dev/sndstatus -device
+ */
+static char *status_buf = NULL;
+static int status_len, status_ptr;
+static int status_busy = 0;
+
+static int
+put_status (char *s)
+{
+ int l;
+
+ for (l = 0; l < 256, s[l]; l++); /* l=strlen(s); */
+
+ if (status_len + l >= 4000)
+ return 0;
+
+ memcpy (&status_buf[status_len], s, l);
+ status_len += l;
+
+ return 1;
+}
+
+static int
+put_status_int (unsigned int val, int radix)
+{
+ int l, v;
+
+ static char hx[] = "0123456789abcdef";
+ char buf[11];
+
+ if (!val)
+ return put_status ("0");
+
+ l = 0;
+ buf[10] = 0;
+
+ while (val)
+ {
+ v = val % radix;
+ val = val / radix;
+
+ buf[9 - l] = hx[v];
+ l++;
+ }
+
+ if (status_len + l >= 4000)
+ return 0;
+
+ memcpy (&status_buf[status_len], &buf[10 - l], l);
+ status_len += l;
+
+ return 1;
+}
+
+static void
+init_status (void)
+{
+ /*
+ * Write the status information to the status_buf and update status_len.
+ * There is a limit of 4000 bytes for the data.
+ */
+
+ int i;
+
+ status_ptr = 0;
+
+ put_status ("Sound Driver:" SOUND_VERSION_STRING
+ " (" SOUND_CONFIG_DATE " " SOUND_CONFIG_BY "@"
+ SOUND_CONFIG_HOST "." SOUND_CONFIG_DOMAIN ")"
+ "\n");
+
+ if (!put_status ("Config options: "))
+ return;
+ if (!put_status_int (SELECTED_SOUND_OPTIONS, 16))
+ return;
+
+ if (!put_status ("\n\nHW config: \n"))
+ return;
+
+ for (i = 0; i < (num_sound_drivers - 1); i++)
+ {
+ if (!supported_drivers[i].enabled)
+ if (!put_status ("("))
+ return;
+
+ if (!put_status ("Type "))
+ return;
+ if (!put_status_int (supported_drivers[i].card_type, 10))
+ return;
+ if (!put_status (": "))
+ return;
+ if (!put_status (supported_drivers[i].name))
+ return;
+ if (!put_status (" at 0x"))
+ return;
+ if (!put_status_int (supported_drivers[i].config.io_base, 16))
+ return;
+ if (!put_status (" irq "))
+ return;
+ if (!put_status_int (supported_drivers[i].config.irq, 10))
+ return;
+ if (!put_status (" drq "))
+ return;
+ if (!put_status_int (supported_drivers[i].config.dma, 10))
+ return;
+
+ if (!supported_drivers[i].enabled)
+ if (!put_status (")"))
+ return;
+
+ if (!put_status ("\n"))
+ return;
+ }
+
+ if (!put_status ("\nPCM devices:\n"))
+ return;
+
+ for (i = 0; i < num_dspdevs; i++)
+ {
+ if (!put_status_int (i, 10))
+ return;
+ if (!put_status (": "))
+ return;
+ if (!put_status (dsp_devs[i]->name))
+ return;
+ if (!put_status ("\n"))
+ return;
+ }
+
+ if (!put_status ("\nSynth devices:\n"))
+ return;
+
+ for (i = 0; i < num_synths; i++)
+ {
+ if (!put_status_int (i, 10))
+ return;
+ if (!put_status (": "))
+ return;
+ if (!put_status (synth_devs[i]->info->name))
+ return;
+ if (!put_status ("\n"))
+ return;
+ }
+
+ if (!put_status ("\nMidi devices:\n"))
+ return;
+
+ for (i = 0; i < num_midis; i++)
+ {
+ if (!put_status_int (i, 10))
+ return;
+ if (!put_status (": "))
+ return;
+ if (!put_status (midi_devs[i]->info.name))
+ return;
+ if (!put_status ("\n"))
+ return;
+ }
+
+ if (num_mixers)
+ {
+ if (!put_status ("\nMixer(s) installed\n"))
+ return;
+ }
+ else
+ {
+ if (!put_status ("\nNo mixers installed\n"))
+ return;
+ }
+}
+
+static int
+read_status (snd_rw_buf * buf, int count)
+{
+ /*
+ * Return at most 'count' bytes from the status_buf.
+ */
+ int l, c;
+
+ l = count;
+ c = status_len - status_ptr;
+
+ if (l > c)
+ l = c;
+ if (l <= 0)
+ return 0;
+
+ COPY_TO_USER (buf, 0, &status_buf[status_ptr], l);
+ status_ptr += l;
+
+ return l;
+}
+
+int
+sound_read_sw (int dev, struct fileinfo *file, snd_rw_buf * buf, int count)
+{
+ DEB (printk ("sound_read_sw(dev=%d, count=%d)\n", dev, count));
+
+ switch (dev & 0x0f)
+ {
+ case SND_DEV_STATUS:
+ return read_status (buf, count);
+ break;
+
+ case SND_DEV_DSP:
+ case SND_DEV_DSP16:
+ case SND_DEV_AUDIO:
+ return audio_read (dev, file, buf, count);
+ break;
+
+ case SND_DEV_SEQ:
+ return sequencer_read (dev, file, buf, count);
+ break;
+
+#ifndef EXCLUDE_MPU401
+ case SND_DEV_MIDIN:
+ return MIDIbuf_read (dev, file, buf, count);
+#endif
+
+ default:
+ printk ("Sound: Undefined minor device %d\n", dev);
+ }
+
+ return RET_ERROR (EPERM);
+}
+
+int
+sound_write_sw (int dev, struct fileinfo *file, snd_rw_buf * buf, int count)
+{
+
+ DEB (printk ("sound_write_sw(dev=%d, count=%d)\n", dev, count));
+
+ switch (dev & 0x0f)
+ {
+
+ case SND_DEV_SEQ:
+ return sequencer_write (dev, file, buf, count);
+ break;
+
+ case SND_DEV_DSP:
+ case SND_DEV_DSP16:
+ case SND_DEV_AUDIO:
+ return audio_write (dev, file, buf, count);
+ break;
+
+ default:
+ return RET_ERROR (EPERM);
+ }
+
+ return count;
+}
+
+int
+sound_open_sw (int dev, struct fileinfo *file)
+{
+ int retval;
+
+ DEB (printk ("sound_open_sw(dev=%d) : usecount=%d\n", dev, sbc_devices[dev].usecount));
+
+ if ((dev >= SND_NDEVS) || (dev < 0))
+ {
+ printk ("Invalid minor device %d\n", dev);
+ return RET_ERROR (ENXIO);
+ }
+
+ switch (dev & 0x0f)
+ {
+ case SND_DEV_STATUS:
+ if (status_busy)
+ return RET_ERROR (EBUSY);
+ status_busy = 1;
+ if ((status_buf = (char *) KERNEL_MALLOC (4000)) == NULL)
+ return RET_ERROR (EIO);
+ status_len = status_ptr = 0;
+ init_status ();
+ break;
+
+ case SND_DEV_CTL:
+ return 0;
+ break;
+
+ case SND_DEV_SEQ:
+ if ((retval = sequencer_open (dev, file)) < 0)
+ return retval;
+ break;
+
+#ifndef EXCLUDE_MPU401
+ case SND_DEV_MIDIN:
+ if ((retval = MIDIbuf_open (dev, file)) < 0)
+ return retval;
+ break;
+#endif
+
+ case SND_DEV_DSP:
+ case SND_DEV_DSP16:
+ case SND_DEV_AUDIO:
+ if ((retval = audio_open (dev, file)) < 0)
+ return retval;
+ break;
+
+ default:
+ printk ("Invalid minor device %d\n", dev);
+ return RET_ERROR (ENXIO);
+ }
+
+ sbc_devices[dev].usecount++;
+ in_use++;
+
+ return 0;
+}
+
+void
+sound_release_sw (int dev, struct fileinfo *file)
+{
+
+ DEB (printk ("sound_release_sw(dev=%d)\n", dev));
+
+ switch (dev & 0x0f)
+ {
+ case SND_DEV_STATUS:
+ if (status_buf)
+ KERNEL_FREE (status_buf);
+ status_buf = NULL;
+ status_busy = 0;
+ break;
+
+ case SND_DEV_CTL:
+ break;
+
+ case SND_DEV_SEQ:
+ sequencer_release (dev, file);
+ break;
+
+#ifndef EXCLUDE_MPU401
+ case SND_DEV_MIDIN:
+ MIDIbuf_release (dev, file);
+ break;
+#endif
+
+ case SND_DEV_DSP:
+ case SND_DEV_DSP16:
+ case SND_DEV_AUDIO:
+ audio_release (dev, file);
+ break;
+
+ default:
+ printk ("Sound error: Releasing unknown device 0x%02x\n", dev);
+ }
+
+ sbc_devices[dev].usecount--;
+ in_use--;
+}
+
+int
+sound_ioctl_sw (int dev, struct fileinfo *file,
+ unsigned int cmd, unsigned long arg)
+{
+ DEB (printk ("sound_ioctl_sw(dev=%d, cmd=0x%x, arg=0x%x)\n", dev, cmd, arg));
+
+ switch (dev & 0x0f)
+ {
+
+ case SND_DEV_CTL:
+
+ if (!num_mixers)
+ return RET_ERROR (ENXIO);
+
+ if ((dev >> 4) >= num_mixers)
+ return RET_ERROR (ENXIO);
+
+ return mixer_devs[dev >> 4]->ioctl (dev >> 4, cmd, arg);
+ break;
+
+ case SND_DEV_SEQ:
+ return sequencer_ioctl (dev, file, cmd, arg);
+ break;
+
+ case SND_DEV_DSP:
+ case SND_DEV_DSP16:
+ case SND_DEV_AUDIO:
+ return audio_ioctl (dev, file, cmd, arg);
+ break;
+
+#ifndef EXCLUDE_MPU401
+ case SND_DEV_MIDIN:
+ return MIDIbuf_ioctl (dev, file, cmd, arg);
+ break;
+#endif
+
+ default:
+ return RET_ERROR (EPERM);
+ break;
+ }
+
+ return RET_ERROR (EPERM);
+}
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-02 17:21:48 +0000