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-rw-r--r--sys/i386/isa/sound/mad16_sb_midi.c285
1 files changed, 0 insertions, 285 deletions
diff --git a/sys/i386/isa/sound/mad16_sb_midi.c b/sys/i386/isa/sound/mad16_sb_midi.c
deleted file mode 100644
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--- a/sys/i386/isa/sound/mad16_sb_midi.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- * sound/mad16_sb_midi.c
- *
- * The low level driver for MAD16 SoundBlaster-DS-chip-based MIDI.
- *
- * Copyright by Hannu Savolainen 1993, Aaron Ucko 1995
- *
- * 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 <i386/isa/sound/sound_config.h>
-
-#if defined(CONFIG_MAD16) && defined(CONFIG_MIDI)
-
-#define sbc_base mad16_sb_base
-#include <i386/isa/sound/sb_card.h>
-
-static int input_opened = 0;
-static int my_dev;
-static int mad16_sb_base = 0x220;
-static int mad16_sb_irq = 0;
-static int mad16_sb_dsp_ok = 0;
-static sound_os_info *midi_osp;
-
-int mad16_sb_midi_mode = NORMAL_MIDI;
-int mad16_sb_midi_busy = 0;
-
-int mad16_sb_duplex_midi = 0;
-volatile int mad16_sb_intr_active = 0;
-
-void (*midi_input_intr) (int dev, unsigned char data);
-
-static void mad16_sb_midi_init(int model);
-
-static int
-mad16_sb_dsp_command(unsigned char val)
-{
- int i;
- unsigned long limit;
-
- limit = get_time() + hz / 10; /* The timeout is 0.1 secods */
-
- /*
- * Note! the i<500000 is an emergency exit. The
- * mad16_sb_dsp_command() is sometimes called while interrupts are
- * disabled. This means that the timer is disabled also. However the
- * timeout situation is a abnormal condition. Normally the DSP should
- * be ready to accept commands after just couple of loops.
- */
-
- for (i = 0; i < 500000 && get_time() < limit; i++) {
- if ((inb(DSP_STATUS) & 0x80) == 0) {
- outb(DSP_COMMAND, val);
- return 1;
- }
- }
-
- printf("MAD16 (SBP mode): DSP Command(%x) Timeout.\n", val);
- printf("IRQ conflict???\n");
- return 0;
-}
-
-void
-mad16_sbintr(int irq)
-{
- int status;
-
- unsigned long flags;
- unsigned char data;
-
- status = inb(DSP_DATA_AVAIL); /* Clear interrupt */
-
- flags = splhigh();
-
- data = inb(DSP_READ);
- if (input_opened)
- midi_input_intr(my_dev, data);
-
- splx(flags);
-}
-
-static int
-mad16_sb_reset_dsp(void)
-{
- int loopc;
-
- outb(DSP_RESET, 1);
- DELAY(10);
- outb(DSP_RESET, 0);
- DELAY(30);
-
- for (loopc = 0; loopc < 100 && !(inb(DSP_DATA_AVAIL) & 0x80); loopc++)
- DELAY(10);
- /* Wait for data available status */
-
- if (inb(DSP_READ) != 0xAA)
- return 0; /* Sorry */
-
- return 1;
-}
-
-int
-mad16_sb_dsp_detect(struct address_info * hw_config)
-{
- mad16_sb_base = hw_config->io_base;
- mad16_sb_irq = hw_config->irq;
- midi_osp = hw_config->osp;
-
- if (mad16_sb_dsp_ok)
- return 0; /* Already initialized */
- if (!mad16_sb_reset_dsp())
- return 0;
-
- return 1; /* Detected */
-}
-
-void
-mad16_sb_dsp_init(struct address_info * hw_config)
-/*
- * this function now just verifies the reported version and calls
- * mad16_sb_midi_init -- everything else is done elsewhere
- */
-{
-
- midi_osp = hw_config->osp;
- if (snd_set_irq_handler(mad16_sb_irq, mad16_sbintr, midi_osp) < 0) {
- printf("MAD16 SB MIDI: IRQ not free\n");
- return;
- }
-
- conf_printf("MAD16 MIDI (SB mode)", hw_config);
- mad16_sb_midi_init(2);
-
- mad16_sb_dsp_ok = 1;
- return;
-}
-
-static int
-mad16_sb_midi_open(int dev, int mode,
- void (*input) (int dev, unsigned char data),
- void (*output) (int dev)
-)
-{
-
- if (!mad16_sb_dsp_ok) {
- printf("MAD16_SB Error: MIDI hardware not installed\n");
- return -(ENXIO);
- }
- if (mad16_sb_midi_busy)
- return -(EBUSY);
-
- if (mode != OPEN_WRITE && !mad16_sb_duplex_midi) {
- if (num_midis == 1)
- printf("MAD16 (SBP mode): Midi input not currently supported\n");
- return -(EPERM);
- }
- mad16_sb_midi_mode = NORMAL_MIDI;
- if (mode != OPEN_WRITE) {
- if (mad16_sb_intr_active)
- return -(EBUSY);
- mad16_sb_midi_mode = UART_MIDI;
- }
- if (mad16_sb_midi_mode == UART_MIDI) {
- mad16_sb_reset_dsp();
-
- if (!mad16_sb_dsp_command(0x35))
- return -(EIO); /* Enter the UART mode */
- mad16_sb_intr_active = 1;
-
- input_opened = 1;
- midi_input_intr = input;
- }
- mad16_sb_midi_busy = 1;
-
- return 0;
-}
-
-static void
-mad16_sb_midi_close(int dev)
-{
- if (mad16_sb_midi_mode == UART_MIDI) {
- mad16_sb_reset_dsp(); /* The only way to kill the UART mode */
- }
- mad16_sb_intr_active = 0;
- mad16_sb_midi_busy = 0;
- input_opened = 0;
-}
-
-static int
-mad16_sb_midi_out(int dev, unsigned char midi_byte)
-{
- unsigned long flags;
-
- if (mad16_sb_midi_mode == NORMAL_MIDI) {
- flags = splhigh();
- if (mad16_sb_dsp_command(0x38))
- mad16_sb_dsp_command(midi_byte);
- else
- printf("MAD16_SB Error: Unable to send a MIDI byte\n");
- splx(flags);
- } else
- mad16_sb_dsp_command(midi_byte); /* UART write */
-
- return 1;
-}
-
-static int
-mad16_sb_midi_start_read(int dev)
-{
- if (mad16_sb_midi_mode != UART_MIDI) {
- printf("MAD16 (SBP mode): MIDI input not implemented.\n");
- return -(EPERM);
- }
- return 0;
-}
-
-static int
-mad16_sb_midi_end_read(int dev)
-{
- if (mad16_sb_midi_mode == UART_MIDI) {
- mad16_sb_reset_dsp();
- mad16_sb_intr_active = 0;
- }
- return 0;
-}
-
-static int
-mad16_sb_midi_ioctl(int dev, unsigned cmd, ioctl_arg arg)
-{
- return -(EPERM);
-}
-
-#define MIDI_SYNTH_NAME "pseudo-SoundBlaster Midi"
-#define MIDI_SYNTH_CAPS 0
-#include <i386/isa/sound/midi_synth.h>
-
-static struct midi_operations mad16_sb_midi_operations =
-{
- {"MAD16 (SBP mode)", 0, 0, SNDCARD_MAD16},
- &std_midi_synth,
- {0},
- mad16_sb_midi_open,
- mad16_sb_midi_close,
- mad16_sb_midi_ioctl,
- mad16_sb_midi_out,
- mad16_sb_midi_start_read,
- mad16_sb_midi_end_read,
- NULL, /* Kick */
- NULL, /* command */
- NULL, /* buffer_status */
- NULL
-};
-
-static void
-mad16_sb_midi_init(int model)
-{
- if (num_midis >= MAX_MIDI_DEV) {
- printf("Sound: Too many midi devices detected\n");
- return;
- }
- std_midi_synth.midi_dev = num_midis;
- my_dev = num_midis;
- midi_devs[num_midis++] = &mad16_sb_midi_operations;
-}
-
-#endif
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