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-rw-r--r--sys/i386/isa/sound/pas2_midi.c407
1 files changed, 177 insertions, 230 deletions
diff --git a/sys/i386/isa/sound/pas2_midi.c b/sys/i386/isa/sound/pas2_midi.c
index 1c6bf5937a03..006b7d4c8087 100644
--- a/sys/i386/isa/sound/pas2_midi.c
+++ b/sys/i386/isa/sound/pas2_midi.c
@@ -1,10 +1,10 @@
/*
* sound/pas2_midi.c
- *
+ *
* The low level driver for the PAS Midi Interface.
- *
+ *
* 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
@@ -12,7 +12,7 @@
* 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
@@ -24,315 +24,262 @@
* 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"
+#include <i386/isa/sound/sound_config.h>
-#ifdef CONFIGURE_SOUNDCARD
-
-#include "pas.h"
-
-#if !defined(EXCLUDE_PAS) && !defined(EXCLUDE_MIDI) && defined(EXCLUDE_PRO_MIDI)
+#if defined(CONFIG_PAS) && defined(CONFIG_MIDI)
+#include <i386/isa/sound/pas_hw.h>
static int midi_busy = 0, input_opened = 0;
static int my_dev;
static volatile int ofifo_bytes = 0;
-static unsigned char tmp_queue[256];
+static u_char tmp_queue[256];
static volatile int qlen;
-static volatile unsigned char qhead, qtail;
+static volatile u_char qhead, qtail;
-static void (*midi_input_intr) (int dev, unsigned char data);
+static void (*midi_input_intr) (int dev, u_char data);
static int
-pas_midi_open (int dev, int mode,
- void (*input) (int dev, unsigned char data),
- void (*output) (int dev)
+pas_midi_open(int dev, int mode,
+ void (*input) (int dev, u_char data),
+ void (*output) (int dev)
)
{
- int err;
- unsigned long flags;
- unsigned char ctrl;
-
-
- if (midi_busy)
- {
- printk ("PAS2: Midi busy\n");
- return RET_ERROR (EBUSY);
- }
-
- /*
- * Reset input and output FIFO pointers
- */
- pas_write (M_C_RESET_INPUT_FIFO | M_C_RESET_OUTPUT_FIFO,
- MIDI_CONTROL);
-
- DISABLE_INTR (flags);
-
- if ((err = pas_set_intr (I_M_MIDI_IRQ_ENABLE)) < 0)
- return err;
-
- /*
- * Enable input available and output FIFO empty interrupts
- */
-
- ctrl = 0;
- input_opened = 0;
- midi_input_intr = input;
-
- if (mode == OPEN_READ || mode == OPEN_READWRITE)
- {
- ctrl |= M_C_ENA_INPUT_IRQ;/*
- * Enable input
- */
- input_opened = 1;
- }
-
- if (mode == OPEN_WRITE || mode == OPEN_READWRITE)
- {
- ctrl |= M_C_ENA_OUTPUT_IRQ | /*
- * Enable output
- */
- M_C_ENA_OUTPUT_HALF_IRQ;
- }
-
- pas_write (ctrl,
- MIDI_CONTROL);
-
- /*
- * Acknowledge any pending interrupts
- */
-
- pas_write (0xff, MIDI_STATUS);
- ofifo_bytes = 0;
-
- RESTORE_INTR (flags);
-
- midi_busy = 1;
- qlen = qhead = qtail = 0;
- return 0;
+ int err;
+ u_long flags;
+ u_char ctrl;
+
+
+ if (midi_busy) {
+ printf("PAS2: Midi busy\n");
+ return -(EBUSY);
+ }
+ /*
+ * Reset input and output FIFO pointers
+ */
+ pas_write(M_C_RESET_INPUT_FIFO | M_C_RESET_OUTPUT_FIFO,
+ MIDI_CONTROL);
+
+ flags = splhigh();
+
+ if ((err = pas_set_intr(I_M_MIDI_IRQ_ENABLE)) < 0)
+ return err;
+
+ /*
+ * Enable input available and output FIFO empty interrupts
+ */
+
+ ctrl = 0;
+ input_opened = 0;
+ midi_input_intr = input;
+
+ if (mode == OPEN_READ || mode == OPEN_READWRITE) {
+ ctrl |= M_C_ENA_INPUT_IRQ; /* Enable input */
+ input_opened = 1;
+ }
+ if (mode == OPEN_WRITE || mode == OPEN_READWRITE) {
+ ctrl |= M_C_ENA_OUTPUT_IRQ | /* Enable output */
+ M_C_ENA_OUTPUT_HALF_IRQ;
+ }
+ pas_write(ctrl,
+ MIDI_CONTROL);
+
+ /*
+ * Acknowledge any pending interrupts
+ */
+
+ pas_write(0xff, MIDI_STATUS);
+ ofifo_bytes = 0;
+
+ splx(flags);
+
+ midi_busy = 1;
+ qlen = qhead = qtail = 0;
+ return 0;
}
static void
-pas_midi_close (int dev)
+pas_midi_close(int dev)
{
- /*
- * Reset FIFO pointers, disable intrs
- */
- pas_write (M_C_RESET_INPUT_FIFO | M_C_RESET_OUTPUT_FIFO, MIDI_CONTROL);
+ /*
+ * Reset FIFO pointers, disable intrs
+ */
+ pas_write(M_C_RESET_INPUT_FIFO | M_C_RESET_OUTPUT_FIFO, MIDI_CONTROL);
- pas_remove_intr (I_M_MIDI_IRQ_ENABLE);
- midi_busy = 0;
+ pas_remove_intr(I_M_MIDI_IRQ_ENABLE);
+ midi_busy = 0;
}
static int
-dump_to_midi (unsigned char midi_byte)
+dump_to_midi(u_char midi_byte)
{
- int fifo_space, x;
-
- fifo_space = ((x = pas_read (MIDI_FIFO_STATUS)) >> 4) & 0x0f;
+ int fifo_space, x;
- if (fifo_space == 15 || (fifo_space < 2 && ofifo_bytes > 13)) /*
- * Fifo
- * full
- */
- {
- return 0; /*
- * Upper layer will call again
- */
- }
+ fifo_space = ((x = pas_read(MIDI_FIFO_STATUS)) >> 4) & 0x0f;
- ofifo_bytes++;
+ if (fifo_space == 15 || (fifo_space < 2 && ofifo_bytes > 13)) { /* Fifo full */
+ return 0; /* Upper layer will call again */
+ }
+ ofifo_bytes++;
- pas_write (midi_byte, MIDI_DATA);
+ pas_write(midi_byte, MIDI_DATA);
- return 1;
+ return 1;
}
static int
-pas_midi_out (int dev, unsigned char midi_byte)
+pas_midi_out(int dev, u_char midi_byte)
{
- unsigned long flags;
+ u_long flags;
- /*
- * Drain the local queue first
- */
+ /*
+ * Drain the local queue first
+ */
- DISABLE_INTR (flags);
+ flags = splhigh();
- while (qlen && dump_to_midi (tmp_queue[qhead]))
- {
- qlen--;
- qhead++;
- }
+ while (qlen && dump_to_midi(tmp_queue[qhead])) {
+ qlen--;
+ qhead++;
+ }
- RESTORE_INTR (flags);
+ splx(flags);
- /*
- * Output the byte if the local queue is empty.
- */
+ /*
+ * Output the byte if the local queue is empty.
+ */
- if (!qlen)
- if (dump_to_midi (midi_byte))
- return 1; /*
- * OK
- */
+ if (!qlen)
+ if (dump_to_midi(midi_byte))
+ return 1; /* OK */
- /*
- * Put to the local queue
- */
+ /*
+ * Put to the local queue
+ */
- if (qlen >= 256)
- return 0; /*
- * Local queue full
- */
+ if (qlen >= 256)
+ return 0; /* Local queue full */
- DISABLE_INTR (flags);
+ flags = splhigh();
- tmp_queue[qtail] = midi_byte;
- qlen++;
- qtail++;
+ tmp_queue[qtail] = midi_byte;
+ qlen++;
+ qtail++;
- RESTORE_INTR (flags);
+ splx(flags);
- return 1;
+ return 1;
}
static int
-pas_midi_start_read (int dev)
+pas_midi_start_read(int dev)
{
- return 0;
+ return 0;
}
static int
-pas_midi_end_read (int dev)
+pas_midi_end_read(int dev)
{
- return 0;
+ return 0;
}
static int
-pas_midi_ioctl (int dev, unsigned cmd, unsigned arg)
+pas_midi_ioctl(int dev, u_int cmd, ioctl_arg arg)
{
- return RET_ERROR (EINVAL);
+ return -(EINVAL);
}
static void
-pas_midi_kick (int dev)
+pas_midi_kick(int dev)
{
- ofifo_bytes = 0;
+ ofifo_bytes = 0;
}
static int
-pas_buffer_status (int dev)
+pas_buffer_status(int dev)
{
- return !qlen;
+ return qlen;
}
#define MIDI_SYNTH_NAME "Pro Audio Spectrum Midi"
#define MIDI_SYNTH_CAPS SYNTH_CAP_INPUT
-#include "midi_synth.h"
+#include <i386/isa/sound/midi_synth.h>
static struct midi_operations pas_midi_operations =
{
- {"Pro Audio Spectrum", 0, 0, SNDCARD_PAS},
- &std_midi_synth,
- pas_midi_open,
- pas_midi_close,
- pas_midi_ioctl,
- pas_midi_out,
- pas_midi_start_read,
- pas_midi_end_read,
- pas_midi_kick,
- NULL, /*
- * command
- */
- pas_buffer_status,
- NULL
+ {"Pro Audio Spectrum", 0, 0, SNDCARD_PAS},
+ &std_midi_synth,
+ {0},
+ pas_midi_open,
+ pas_midi_close,
+ pas_midi_ioctl,
+ pas_midi_out,
+ pas_midi_start_read,
+ pas_midi_end_read,
+ pas_midi_kick,
+ NULL, /* command */
+ pas_buffer_status,
+ NULL
};
-long
-pas_midi_init (long mem_start)
+void
+pas_midi_init()
{
- if (num_midis >= MAX_MIDI_DEV)
- {
- printk ("Sound: Too many midi devices detected\n");
- return mem_start;
- }
-
- std_midi_synth.midi_dev = my_dev = num_midis;
- midi_devs[num_midis++] = &pas_midi_operations;
- return mem_start;
+ if (num_midis >= MAX_MIDI_DEV) {
+ printf("Sound: Too many midi devices detected\n");
+ return;
+ }
+ std_midi_synth.midi_dev = my_dev = num_midis;
+ midi_devs[num_midis++] = &pas_midi_operations;
+ return;
}
void
-pas_midi_interrupt (void)
+pas_midi_interrupt(void)
{
- unsigned char stat;
- int i, incount;
- unsigned long flags;
-
- stat = pas_read (MIDI_STATUS);
-
- if (stat & M_S_INPUT_AVAIL) /*
- * Input byte available
- */
- {
- incount = pas_read (MIDI_FIFO_STATUS) & 0x0f; /*
- * Input FIFO count
- */
- if (!incount)
- incount = 16;
-
- for (i = 0; i < incount; i++)
- if (input_opened)
- {
- midi_input_intr (my_dev, pas_read (MIDI_DATA));
- }
- else
- pas_read (MIDI_DATA); /*
- * Flush
- */
- }
-
- if (stat & (M_S_OUTPUT_EMPTY | M_S_OUTPUT_HALF_EMPTY))
- {
- if (!(stat & M_S_OUTPUT_EMPTY))
- {
- ofifo_bytes = 8;
- }
- else
- {
- ofifo_bytes = 0;
+ u_char stat;
+ int i, incount;
+ u_long flags;
+
+ stat = pas_read(MIDI_STATUS);
+
+ if (stat & M_S_INPUT_AVAIL) { /* Input byte available */
+ incount = pas_read(MIDI_FIFO_STATUS) & 0x0f; /* Input FIFO count */
+ if (!incount)
+ incount = 16;
+
+ for (i = 0; i < incount; i++)
+ if (input_opened) {
+ midi_input_intr(my_dev, pas_read(MIDI_DATA));
+ } else
+ pas_read(MIDI_DATA); /* Flush */
}
+ if (stat & (M_S_OUTPUT_EMPTY | M_S_OUTPUT_HALF_EMPTY)) {
+ if (!(stat & M_S_OUTPUT_EMPTY)) {
+ ofifo_bytes = 8;
+ } else {
+ ofifo_bytes = 0;
+ }
- DISABLE_INTR (flags);
+ flags = splhigh();
- while (qlen && dump_to_midi (tmp_queue[qhead]))
- {
- qlen--;
- qhead++;
- }
+ while (qlen && dump_to_midi(tmp_queue[qhead])) {
+ qlen--;
+ qhead++;
+ }
- RESTORE_INTR (flags);
- }
-
- if (stat & M_S_FRAMING_ERROR)
- printk ("MIDI framing error\n");
-
- if (stat & M_S_OUTPUT_OVERRUN)
- {
- printk ("MIDI output overrun %x,%x,%d \n", pas_read (MIDI_FIFO_STATUS), stat, ofifo_bytes);
- ofifo_bytes = 100;
- }
-
- pas_write (stat, MIDI_STATUS);/*
- * Acknowledge interrupts
- */
+ splx(flags);
+ }
+ if (stat & M_S_OUTPUT_OVERRUN) {
+ printf("MIDI output overrun %x,%x,%d \n", pas_read(MIDI_FIFO_STATUS), stat, ofifo_bytes);
+ ofifo_bytes = 100;
+ }
+ pas_write(stat, MIDI_STATUS); /* Acknowledge interrupts */
}
#endif
-
-#endif
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