2 * Copyright (c) 2003 Mathew Kanner
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/types.h>
32 #include <sys/param.h>
33 #include <sys/queue.h>
34 #include <sys/kernel.h>
36 #include <sys/mutex.h>
38 #include <sys/systm.h>
40 #include <sys/malloc.h>
41 #include <sys/bus.h> /* to get driver_intr_t */
43 #include <dev/sound/midi/mpu401.h>
44 #include <dev/sound/midi/midi.h>
47 #include "mpufoi_if.h"
49 #define MPU_DATAPORT 0
51 #define MPU_STATPORT 1
52 #define MPU_RESET 0xff
55 #define MPU_STATMASK 0xc0
56 #define MPU_OUTPUTBUSY 0x40
57 #define MPU_INPUTBUSY 0x80
58 #define MPU_TRYDATA 50
59 #define MPU_DELAY 2500
61 #define CMD(m,d) MPUFOI_WRITE(m, m->cookie, MPU_CMDPORT,d)
62 #define STATUS(m) MPUFOI_READ(m, m->cookie, MPU_STATPORT)
63 #define READ(m) MPUFOI_READ(m, m->cookie, MPU_DATAPORT)
64 #define WRITE(m,d) MPUFOI_WRITE(m, m->cookie, MPU_DATAPORT,d)
75 static void mpu401_timeout(void *m);
76 static mpu401_intr_t mpu401_intr;
78 static int mpu401_minit(kobj_t obj, struct mpu401 *m);
79 static int mpu401_muninit(kobj_t obj, struct mpu401 *m);
80 static int mpu401_minqsize(kobj_t obj, struct mpu401 *m);
81 static int mpu401_moutqsize(kobj_t obj, struct mpu401 *m);
82 static void mpu401_mcallback(kobj_t obj, struct mpu401 *m, int flags);
83 static void mpu401_mcallbackp(kobj_t obj, struct mpu401 *m, int flags);
84 static const char *mpu401_mdescr(kobj_t obj, struct mpu401 *m, int verbosity);
85 static const char *mpu401_mprovider(kobj_t obj, struct mpu401 *m);
87 static kobj_method_t mpu401_methods[] = {
88 KOBJMETHOD(mpu_init, mpu401_minit),
89 KOBJMETHOD(mpu_uninit, mpu401_muninit),
90 KOBJMETHOD(mpu_inqsize, mpu401_minqsize),
91 KOBJMETHOD(mpu_outqsize, mpu401_moutqsize),
92 KOBJMETHOD(mpu_callback, mpu401_mcallback),
93 KOBJMETHOD(mpu_callbackp, mpu401_mcallbackp),
94 KOBJMETHOD(mpu_descr, mpu401_mdescr),
95 KOBJMETHOD(mpu_provider, mpu401_mprovider),
99 DEFINE_CLASS(mpu401, mpu401_methods, 0);
102 mpu401_timeout(void *a)
104 struct mpu401 *m = (struct mpu401 *)a;
111 mpu401_intr(struct mpu401 *m)
113 #define MPU_INTR_BUF 16
114 MIDI_TYPE b[MPU_INTR_BUF];
119 printf("mpu401_intr\n");
121 #define RXRDY(m) ( (STATUS(m) & MPU_INPUTBUSY) == 0)
122 #define TXRDY(m) ( (STATUS(m) & MPU_OUTPUTBUSY) == 0)
124 #define D(x,l) printf("mpu401_intr %d %x %s %s\n",l, x, x&MPU_INPUTBUSY?"RX":"", x&MPU_OUTPUTBUSY?"TX":"")
131 while ((s & MPU_INPUTBUSY) == 0 && i < MPU_INTR_BUF) {
134 printf("mpu401_intr in i %d d %d\n", i, b[i]);
140 midi_in(m->mid, b, i);
142 while (!(s & MPU_OUTPUTBUSY) && i < MPU_INTR_BUF) {
143 if (midi_out(m->mid, b, 1)) {
145 printf("mpu401_intr out i %d d %d\n", i, b[0]);
151 printf("mpu401_intr write: no output\n");
160 if ((m->flags & M_TXEN) && (m->si)) {
161 callout_reset(&m->timer, 1, mpu401_timeout, m);
163 return (m->flags & M_TXEN) == M_TXEN;
167 mpu401_init(kobj_class_t cls, void *cookie, driver_intr_t softintr,
173 m = malloc(sizeof(*m), M_MIDI, M_NOWAIT | M_ZERO);
178 kobj_init((kobj_t)m, cls);
180 callout_init(&m->timer, CALLOUT_MPSAFE);
186 m->mid = midi_init(&mpu401_class, 0, 0, m);
192 printf("mpu401_init error\n");
198 mpu401_uninit(struct mpu401 *m)
203 retval = midi_uninit(m->mid);
211 mpu401_minit(kobj_t obj, struct mpu401 *m)
221 if (READ(m) == MPU_ACK)
229 printf("mpu401_minit failed active sensing\n");
235 mpu401_muninit(kobj_t obj, struct mpu401 *m)
238 return MPUFOI_UNINIT(m, m->cookie);
242 mpu401_minqsize(kobj_t obj, struct mpu401 *m)
248 mpu401_moutqsize(kobj_t obj, struct mpu401 *m)
254 mpu401_mcallback(kobj_t obj, struct mpu401 *m, int flags)
257 printf("mpu401_callback %s %s %s %s\n",
258 flags & M_RX ? "M_RX" : "",
259 flags & M_TX ? "M_TX" : "",
260 flags & M_RXEN ? "M_RXEN" : "",
261 flags & M_TXEN ? "M_TXEN" : "");
263 if (flags & M_TXEN && m->si) {
264 callout_reset(&m->timer, 1, mpu401_timeout, m);
270 mpu401_mcallbackp(kobj_t obj, struct mpu401 *m, int flags)
272 /* printf("mpu401_callbackp\n"); */
273 mpu401_mcallback(obj, m, flags);
277 mpu401_mdescr(kobj_t obj, struct mpu401 *m, int verbosity)
280 return "descr mpu401";
284 mpu401_mprovider(kobj_t obj, struct mpu401 *m)
286 return "provider mpu401";