c637bc9203
better grep-compliance and to standardize with the rest of the kernel. Reviewed by: jhb MFC after: 1 week
288 lines
6.5 KiB
C
288 lines
6.5 KiB
C
/*-
|
|
* Copyright (c) 2003 Mathew Kanner
|
|
* All rights reserved.
|
|
*
|
|
* 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 <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kobj.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/bus.h> /* to get driver_intr_t */
|
|
|
|
#include <dev/sound/midi/mpu401.h>
|
|
#include <dev/sound/midi/midi.h>
|
|
|
|
#include "mpu_if.h"
|
|
#include "mpufoi_if.h"
|
|
|
|
#define MPU_DATAPORT 0
|
|
#define MPU_CMDPORT 1
|
|
#define MPU_STATPORT 1
|
|
#define MPU_RESET 0xff
|
|
#define MPU_UART 0x3f
|
|
#define MPU_ACK 0xfe
|
|
#define MPU_STATMASK 0xc0
|
|
#define MPU_OUTPUTBUSY 0x40
|
|
#define MPU_INPUTBUSY 0x80
|
|
#define MPU_TRYDATA 50
|
|
#define MPU_DELAY 2500
|
|
|
|
#define CMD(m,d) MPUFOI_WRITE(m, m->cookie, MPU_CMDPORT,d)
|
|
#define STATUS(m) MPUFOI_READ(m, m->cookie, MPU_STATPORT)
|
|
#define READ(m) MPUFOI_READ(m, m->cookie, MPU_DATAPORT)
|
|
#define WRITE(m,d) MPUFOI_WRITE(m, m->cookie, MPU_DATAPORT,d)
|
|
|
|
struct mpu401 {
|
|
KOBJ_FIELDS;
|
|
struct snd_midi *mid;
|
|
int flags;
|
|
driver_intr_t *si;
|
|
void *cookie;
|
|
struct callout timer;
|
|
};
|
|
|
|
static void mpu401_timeout(void *m);
|
|
static mpu401_intr_t mpu401_intr;
|
|
|
|
static int mpu401_minit(kobj_t obj, struct mpu401 *m);
|
|
static int mpu401_muninit(kobj_t obj, struct mpu401 *m);
|
|
static int mpu401_minqsize(kobj_t obj, struct mpu401 *m);
|
|
static int mpu401_moutqsize(kobj_t obj, struct mpu401 *m);
|
|
static void mpu401_mcallback(kobj_t obj, struct mpu401 *m, int flags);
|
|
static void mpu401_mcallbackp(kobj_t obj, struct mpu401 *m, int flags);
|
|
static const char *mpu401_mdescr(kobj_t obj, struct mpu401 *m, int verbosity);
|
|
static const char *mpu401_mprovider(kobj_t obj, struct mpu401 *m);
|
|
|
|
static kobj_method_t mpu401_methods[] = {
|
|
KOBJMETHOD(mpu_init, mpu401_minit),
|
|
KOBJMETHOD(mpu_uninit, mpu401_muninit),
|
|
KOBJMETHOD(mpu_inqsize, mpu401_minqsize),
|
|
KOBJMETHOD(mpu_outqsize, mpu401_moutqsize),
|
|
KOBJMETHOD(mpu_callback, mpu401_mcallback),
|
|
KOBJMETHOD(mpu_callbackp, mpu401_mcallbackp),
|
|
KOBJMETHOD(mpu_descr, mpu401_mdescr),
|
|
KOBJMETHOD(mpu_provider, mpu401_mprovider),
|
|
{0, 0}
|
|
};
|
|
|
|
DEFINE_CLASS(mpu401, mpu401_methods, 0);
|
|
|
|
void
|
|
mpu401_timeout(void *a)
|
|
{
|
|
struct mpu401 *m = (struct mpu401 *)a;
|
|
|
|
if (m->si)
|
|
(m->si)(m->cookie);
|
|
|
|
}
|
|
static int
|
|
mpu401_intr(struct mpu401 *m)
|
|
{
|
|
#define MPU_INTR_BUF 16
|
|
MIDI_TYPE b[MPU_INTR_BUF];
|
|
int i;
|
|
int s;
|
|
|
|
/*
|
|
printf("mpu401_intr\n");
|
|
*/
|
|
#define RXRDY(m) ( (STATUS(m) & MPU_INPUTBUSY) == 0)
|
|
#define TXRDY(m) ( (STATUS(m) & MPU_OUTPUTBUSY) == 0)
|
|
#if 0
|
|
#define D(x,l) printf("mpu401_intr %d %x %s %s\n",l, x, x&MPU_INPUTBUSY?"RX":"", x&MPU_OUTPUTBUSY?"TX":"")
|
|
#else
|
|
#define D(x,l)
|
|
#endif
|
|
i = 0;
|
|
s = STATUS(m);
|
|
D(s, 1);
|
|
while ((s & MPU_INPUTBUSY) == 0 && i < MPU_INTR_BUF) {
|
|
b[i] = READ(m);
|
|
/*
|
|
printf("mpu401_intr in i %d d %d\n", i, b[i]);
|
|
*/
|
|
i++;
|
|
s = STATUS(m);
|
|
}
|
|
if (i)
|
|
midi_in(m->mid, b, i);
|
|
i = 0;
|
|
while (!(s & MPU_OUTPUTBUSY) && i < MPU_INTR_BUF) {
|
|
if (midi_out(m->mid, b, 1)) {
|
|
/*
|
|
printf("mpu401_intr out i %d d %d\n", i, b[0]);
|
|
*/
|
|
|
|
WRITE(m, *b);
|
|
} else {
|
|
/*
|
|
printf("mpu401_intr write: no output\n");
|
|
*/
|
|
return 0;
|
|
}
|
|
i++;
|
|
/* DELAY(100); */
|
|
s = STATUS(m);
|
|
}
|
|
|
|
if ((m->flags & M_TXEN) && (m->si)) {
|
|
callout_reset(&m->timer, 1, mpu401_timeout, m);
|
|
}
|
|
return (m->flags & M_TXEN) == M_TXEN;
|
|
}
|
|
|
|
struct mpu401 *
|
|
mpu401_init(kobj_class_t cls, void *cookie, driver_intr_t softintr,
|
|
mpu401_intr_t ** cb)
|
|
{
|
|
struct mpu401 *m;
|
|
|
|
*cb = NULL;
|
|
m = malloc(sizeof(*m), M_MIDI, M_NOWAIT | M_ZERO);
|
|
|
|
if (!m)
|
|
return NULL;
|
|
|
|
kobj_init((kobj_t)m, cls);
|
|
|
|
callout_init(&m->timer, CALLOUT_MPSAFE);
|
|
|
|
m->si = softintr;
|
|
m->cookie = cookie;
|
|
m->flags = 0;
|
|
|
|
m->mid = midi_init(&mpu401_class, 0, 0, m);
|
|
if (!m->mid)
|
|
goto err;
|
|
*cb = mpu401_intr;
|
|
return m;
|
|
err:
|
|
printf("mpu401_init error\n");
|
|
free(m, M_MIDI);
|
|
return NULL;
|
|
}
|
|
|
|
int
|
|
mpu401_uninit(struct mpu401 *m)
|
|
{
|
|
int retval;
|
|
|
|
CMD(m, MPU_RESET);
|
|
retval = midi_uninit(m->mid);
|
|
if (retval)
|
|
return retval;
|
|
free(m, M_MIDI);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mpu401_minit(kobj_t obj, struct mpu401 *m)
|
|
{
|
|
int i;
|
|
|
|
CMD(m, MPU_RESET);
|
|
CMD(m, MPU_UART);
|
|
return 0;
|
|
i = 0;
|
|
while (++i < 2000) {
|
|
if (RXRDY(m))
|
|
if (READ(m) == MPU_ACK)
|
|
break;
|
|
}
|
|
|
|
if (i < 2000) {
|
|
CMD(m, MPU_UART);
|
|
return 0;
|
|
}
|
|
printf("mpu401_minit failed active sensing\n");
|
|
return 1;
|
|
}
|
|
|
|
|
|
int
|
|
mpu401_muninit(kobj_t obj, struct mpu401 *m)
|
|
{
|
|
|
|
return MPUFOI_UNINIT(m, m->cookie);
|
|
}
|
|
|
|
int
|
|
mpu401_minqsize(kobj_t obj, struct mpu401 *m)
|
|
{
|
|
return 128;
|
|
}
|
|
|
|
int
|
|
mpu401_moutqsize(kobj_t obj, struct mpu401 *m)
|
|
{
|
|
return 128;
|
|
}
|
|
|
|
static void
|
|
mpu401_mcallback(kobj_t obj, struct mpu401 *m, int flags)
|
|
{
|
|
#if 0
|
|
printf("mpu401_callback %s %s %s %s\n",
|
|
flags & M_RX ? "M_RX" : "",
|
|
flags & M_TX ? "M_TX" : "",
|
|
flags & M_RXEN ? "M_RXEN" : "",
|
|
flags & M_TXEN ? "M_TXEN" : "");
|
|
#endif
|
|
if (flags & M_TXEN && m->si) {
|
|
callout_reset(&m->timer, 1, mpu401_timeout, m);
|
|
}
|
|
m->flags = flags;
|
|
}
|
|
|
|
static void
|
|
mpu401_mcallbackp(kobj_t obj, struct mpu401 *m, int flags)
|
|
{
|
|
/* printf("mpu401_callbackp\n"); */
|
|
mpu401_mcallback(obj, m, flags);
|
|
}
|
|
|
|
static const char *
|
|
mpu401_mdescr(kobj_t obj, struct mpu401 *m, int verbosity)
|
|
{
|
|
|
|
return "descr mpu401";
|
|
}
|
|
|
|
static const char *
|
|
mpu401_mprovider(kobj_t obj, struct mpu401 *m)
|
|
{
|
|
return "provider mpu401";
|
|
}
|