1/*-
2 * (c) 2003 Mathew Kanner
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met: 1. Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer. 2.
8 * Redistributions in binary form must reproduce the above copyright notice,
9 * this list of conditions and the following disclaimer in the documentation
10 * and/or other materials provided with the distribution.
11 *
12 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
13 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
14 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
15 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
16 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
17 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
18 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
19 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
20 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
21 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
22 * SUCH DAMAGE.
23 */
24
25#include <sys/cdefs.h>
26__FBSDID("$FreeBSD: head/sys/dev/sound/midi/mpu401.c 158979 2006-05-27 16:32:05Z netchild $");
27
28#include <sys/param.h>
29#include <sys/types.h>
30#include <sys/param.h>
31#include <sys/queue.h>
32#include <sys/kernel.h>
33#include <sys/lock.h>
34#include <sys/mutex.h>
35#include <sys/proc.h>
36#include <sys/systm.h>
37#include <sys/kobj.h>
38#include <sys/malloc.h>
39#include <sys/bus.h> /* to get driver_intr_t */
40
41#include <dev/sound/midi/mpu401.h>
42#include <dev/sound/midi/midi.h>
43
44#include "mpu_if.h"
45#include "mpufoi_if.h"
46
47#define MPU_DATAPORT 0
48#define MPU_CMDPORT 1
49#define MPU_STATPORT 1
50#define MPU_RESET 0xff
51#define MPU_UART 0x3f
52#define MPU_ACK 0xfe
53#define MPU_STATMASK 0xc0
54#define MPU_OUTPUTBUSY 0x40
55#define MPU_INPUTBUSY 0x80
56#define MPU_TRYDATA 50
57#define MPU_DELAY 2500
58
59#define CMD(m,d) MPUFOI_WRITE(m, m->cookie, MPU_CMDPORT,d)
60#define STATUS(m) MPUFOI_READ(m, m->cookie, MPU_STATPORT)
61#define READ(m) MPUFOI_READ(m, m->cookie, MPU_DATAPORT)
62#define WRITE(m,d) MPUFOI_WRITE(m, m->cookie, MPU_DATAPORT,d)
63
64struct mpu401 {
65 KOBJ_FIELDS;
66 struct snd_midi *mid;
67 int flags;
68 driver_intr_t *si;
69 void *cookie;
70 struct callout timer;
71};
72
73static void mpu401_timeout(void *m) ;
74static mpu401_intr_t mpu401_intr;
75
76static int mpu401_minit(kobj_t obj, struct mpu401 *m);
77static int mpu401_muninit(kobj_t obj, struct mpu401 *m);
78static int mpu401_minqsize(kobj_t obj, struct mpu401 *m);
79static int mpu401_moutqsize(kobj_t obj, struct mpu401 *m);
80static void mpu401_mcallback(kobj_t obj, struct mpu401 *m, int flags);
81static void mpu401_mcallbackp(kobj_t obj, struct mpu401 *m, int flags);
82static const char *mpu401_mdescr(kobj_t obj, struct mpu401 *m, int verbosity);
83static const char *mpu401_mprovider(kobj_t obj, struct mpu401 *m);
84
85static kobj_method_t mpu401_methods[] = {
86 KOBJMETHOD(mpu_init,mpu401_minit),
87 KOBJMETHOD(mpu_uninit,mpu401_muninit),
88 KOBJMETHOD(mpu_inqsize,mpu401_minqsize),
89 KOBJMETHOD(mpu_outqsize,mpu401_moutqsize),
90 KOBJMETHOD(mpu_callback,mpu401_mcallback),
91 KOBJMETHOD(mpu_callbackp,mpu401_mcallbackp),
92 KOBJMETHOD(mpu_descr,mpu401_mdescr),
93 KOBJMETHOD(mpu_provider,mpu401_mprovider),
94 { 0, 0 }
95};
96
97DEFINE_CLASS(mpu401, mpu401_methods, 0);
98
99void
100mpu401_timeout(void *a)
101{ struct mpu401 *m=(struct mpu401 *)a;
102
103 if (m->si)
104 (m->si)(m->cookie);
105
106}
107static int
108mpu401_intr(struct mpu401 *m)
109{
110#define MPU_INTR_BUF 16
111 MIDI_TYPE b[MPU_INTR_BUF];
112 int i;
113 int s;
114/*
115 printf("mpu401_intr\n");
116*/
117#define RXRDY(m) ( (STATUS(m) & MPU_INPUTBUSY) == 0)
118#define TXRDY(m) ( (STATUS(m) & MPU_OUTPUTBUSY) == 0)
119#if 0
120#define D(x,l) printf("mpu401_intr %d %x %s %s\n",l, x, x&MPU_INPUTBUSY?"RX":"", x&MPU_OUTPUTBUSY?"TX":"")
121#else
122#define D(x,l)
123#endif
124 i=0;
125 s = STATUS(m);
126 D(s,1);
127 while ( (s&MPU_INPUTBUSY) == 0 && i<MPU_INTR_BUF) {
128 b[i]=READ(m);
129/*
130 printf("mpu401_intr in i %d d %d\n", i, b[i]);
131*/
132 i++;
133 s = STATUS(m);
134 }
135 if (i) midi_in(m->mid, b, i);
136 i=0;
137 while ( !(s&MPU_OUTPUTBUSY) && i<MPU_INTR_BUF) {
138 if(midi_out(m->mid, b, 1)) {
139/*
140 printf("mpu401_intr out i %d d %d\n", i, b[0]);
141*/
142
143 WRITE(m, *b);
144 }
145 else {
146/*
147 printf("mpu401_intr write: no output\n");
148*/
149 return 0;
150 }
151 i++;
152 /* DELAY(100); */
153 s = STATUS(m);
154 }
155
156 if ((m->flags & M_TXEN) && (m->si) ) {
157 callout_reset(&m->timer, 1, mpu401_timeout, m);
158 }
159
160 return (m->flags & M_TXEN) == M_TXEN;
161}
162
163struct mpu401 *
164mpu401_init(kobj_class_t cls, void *cookie,driver_intr_t softintr, mpu401_intr_t **cb)
165{
166 struct mpu401 *m;
167
168 *cb = NULL;
169 m = malloc(sizeof(*m), M_MIDI, M_NOWAIT | M_ZERO);
170
171 if(!m)
172 return NULL;
173
174 kobj_init((kobj_t)m, cls);
175
176 callout_init(&m->timer, 1);
177
178 m->si = softintr;
179 m->cookie = cookie;
180 m->flags = 0;
181
182 m->mid = midi_init(&mpu401_class,0,0,m);
183 if (!m->mid)
184 goto err;
185 *cb = mpu401_intr;
186 return m;
187err:
188 printf("mpu401_init error\n");
189 free(m, M_MIDI);
190 return NULL;
191}
192
193int
194mpu401_uninit(struct mpu401 *m)
195{
196 int retval;
197
198 CMD(m, MPU_RESET);
199 retval = midi_uninit(m->mid);
200 if (retval)
201 return retval;
202 free(m, M_MIDI);
203 return 0;
204}
205
206static int
207mpu401_minit(kobj_t obj, struct mpu401 *m)
208{
209 int i;
210
211 CMD(m, MPU_RESET);
212 CMD(m, MPU_UART);
213 return 0;
214 i=0;
215 while(++i<2000) {
216 if(RXRDY(m))
217 if(READ(m) == MPU_ACK)
218 break;
219 }
220
221 if( i < 2000 ) {
222 CMD(m, MPU_UART);
223 return 0;
224 }
225 printf("mpu401_minit failed active sensing\n");
226 return 1;
227}
228
229
230int
231mpu401_muninit(kobj_t obj, struct mpu401 *m)
232{
233
234 return MPUFOI_UNINIT(m, m->cookie);
235}
236
237int
238mpu401_minqsize(kobj_t obj, struct mpu401 *m)
239{
240 return 128;
241}
242
243int
244mpu401_moutqsize(kobj_t obj, struct mpu401 *m)
245{
246 return 128;
247}
248
249static void
250mpu401_mcallback(kobj_t obj, struct mpu401 *m, int flags)
251{
252#if 0
253 printf("mpu401_callback %s %s %s %s\n",
254 flags & M_RX ? "M_RX" : "",
255 flags & M_TX ? "M_TX" : "",
256 flags & M_RXEN ? "M_RXEN" : "",
257 flags & M_TXEN ? "M_TXEN" : "" );
258#endif
259 if (flags & M_TXEN && m->si) {
260 callout_reset(&m->timer, 1, mpu401_timeout, m);
261 }
262
263 m->flags = flags;
264}
265
266static void
267mpu401_mcallbackp(kobj_t obj, struct mpu401 *m, int flags)
268{
269/* printf("mpu401_callbackp\n"); */
270 mpu401_mcallback(obj, m, flags);
271}
272
273static const char *
274mpu401_mdescr(kobj_t obj, struct mpu401 *m, int verbosity)
275{
276
277 return "descr mpu401";
278}
279
280static const char *
281mpu401_mprovider(kobj_t obj, struct mpu401 *m)
282{
283 return "provider mpu401";
284}
2 * (c) 2003 Mathew Kanner
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met: 1. Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer. 2.
8 * Redistributions in binary form must reproduce the above copyright notice,
9 * this list of conditions and the following disclaimer in the documentation
10 * and/or other materials provided with the distribution.
11 *
12 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
13 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
14 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
15 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
16 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
17 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
18 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
19 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
20 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
21 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
22 * SUCH DAMAGE.
23 */
24
25#include <sys/cdefs.h>
26__FBSDID("$FreeBSD: head/sys/dev/sound/midi/mpu401.c 158979 2006-05-27 16:32:05Z netchild $");
27
28#include <sys/param.h>
29#include <sys/types.h>
30#include <sys/param.h>
31#include <sys/queue.h>
32#include <sys/kernel.h>
33#include <sys/lock.h>
34#include <sys/mutex.h>
35#include <sys/proc.h>
36#include <sys/systm.h>
37#include <sys/kobj.h>
38#include <sys/malloc.h>
39#include <sys/bus.h> /* to get driver_intr_t */
40
41#include <dev/sound/midi/mpu401.h>
42#include <dev/sound/midi/midi.h>
43
44#include "mpu_if.h"
45#include "mpufoi_if.h"
46
47#define MPU_DATAPORT 0
48#define MPU_CMDPORT 1
49#define MPU_STATPORT 1
50#define MPU_RESET 0xff
51#define MPU_UART 0x3f
52#define MPU_ACK 0xfe
53#define MPU_STATMASK 0xc0
54#define MPU_OUTPUTBUSY 0x40
55#define MPU_INPUTBUSY 0x80
56#define MPU_TRYDATA 50
57#define MPU_DELAY 2500
58
59#define CMD(m,d) MPUFOI_WRITE(m, m->cookie, MPU_CMDPORT,d)
60#define STATUS(m) MPUFOI_READ(m, m->cookie, MPU_STATPORT)
61#define READ(m) MPUFOI_READ(m, m->cookie, MPU_DATAPORT)
62#define WRITE(m,d) MPUFOI_WRITE(m, m->cookie, MPU_DATAPORT,d)
63
64struct mpu401 {
65 KOBJ_FIELDS;
66 struct snd_midi *mid;
67 int flags;
68 driver_intr_t *si;
69 void *cookie;
70 struct callout timer;
71};
72
73static void mpu401_timeout(void *m) ;
74static mpu401_intr_t mpu401_intr;
75
76static int mpu401_minit(kobj_t obj, struct mpu401 *m);
77static int mpu401_muninit(kobj_t obj, struct mpu401 *m);
78static int mpu401_minqsize(kobj_t obj, struct mpu401 *m);
79static int mpu401_moutqsize(kobj_t obj, struct mpu401 *m);
80static void mpu401_mcallback(kobj_t obj, struct mpu401 *m, int flags);
81static void mpu401_mcallbackp(kobj_t obj, struct mpu401 *m, int flags);
82static const char *mpu401_mdescr(kobj_t obj, struct mpu401 *m, int verbosity);
83static const char *mpu401_mprovider(kobj_t obj, struct mpu401 *m);
84
85static kobj_method_t mpu401_methods[] = {
86 KOBJMETHOD(mpu_init,mpu401_minit),
87 KOBJMETHOD(mpu_uninit,mpu401_muninit),
88 KOBJMETHOD(mpu_inqsize,mpu401_minqsize),
89 KOBJMETHOD(mpu_outqsize,mpu401_moutqsize),
90 KOBJMETHOD(mpu_callback,mpu401_mcallback),
91 KOBJMETHOD(mpu_callbackp,mpu401_mcallbackp),
92 KOBJMETHOD(mpu_descr,mpu401_mdescr),
93 KOBJMETHOD(mpu_provider,mpu401_mprovider),
94 { 0, 0 }
95};
96
97DEFINE_CLASS(mpu401, mpu401_methods, 0);
98
99void
100mpu401_timeout(void *a)
101{ struct mpu401 *m=(struct mpu401 *)a;
102
103 if (m->si)
104 (m->si)(m->cookie);
105
106}
107static int
108mpu401_intr(struct mpu401 *m)
109{
110#define MPU_INTR_BUF 16
111 MIDI_TYPE b[MPU_INTR_BUF];
112 int i;
113 int s;
114/*
115 printf("mpu401_intr\n");
116*/
117#define RXRDY(m) ( (STATUS(m) & MPU_INPUTBUSY) == 0)
118#define TXRDY(m) ( (STATUS(m) & MPU_OUTPUTBUSY) == 0)
119#if 0
120#define D(x,l) printf("mpu401_intr %d %x %s %s\n",l, x, x&MPU_INPUTBUSY?"RX":"", x&MPU_OUTPUTBUSY?"TX":"")
121#else
122#define D(x,l)
123#endif
124 i=0;
125 s = STATUS(m);
126 D(s,1);
127 while ( (s&MPU_INPUTBUSY) == 0 && i<MPU_INTR_BUF) {
128 b[i]=READ(m);
129/*
130 printf("mpu401_intr in i %d d %d\n", i, b[i]);
131*/
132 i++;
133 s = STATUS(m);
134 }
135 if (i) midi_in(m->mid, b, i);
136 i=0;
137 while ( !(s&MPU_OUTPUTBUSY) && i<MPU_INTR_BUF) {
138 if(midi_out(m->mid, b, 1)) {
139/*
140 printf("mpu401_intr out i %d d %d\n", i, b[0]);
141*/
142
143 WRITE(m, *b);
144 }
145 else {
146/*
147 printf("mpu401_intr write: no output\n");
148*/
149 return 0;
150 }
151 i++;
152 /* DELAY(100); */
153 s = STATUS(m);
154 }
155
156 if ((m->flags & M_TXEN) && (m->si) ) {
157 callout_reset(&m->timer, 1, mpu401_timeout, m);
158 }
159
160 return (m->flags & M_TXEN) == M_TXEN;
161}
162
163struct mpu401 *
164mpu401_init(kobj_class_t cls, void *cookie,driver_intr_t softintr, mpu401_intr_t **cb)
165{
166 struct mpu401 *m;
167
168 *cb = NULL;
169 m = malloc(sizeof(*m), M_MIDI, M_NOWAIT | M_ZERO);
170
171 if(!m)
172 return NULL;
173
174 kobj_init((kobj_t)m, cls);
175
176 callout_init(&m->timer, 1);
177
178 m->si = softintr;
179 m->cookie = cookie;
180 m->flags = 0;
181
182 m->mid = midi_init(&mpu401_class,0,0,m);
183 if (!m->mid)
184 goto err;
185 *cb = mpu401_intr;
186 return m;
187err:
188 printf("mpu401_init error\n");
189 free(m, M_MIDI);
190 return NULL;
191}
192
193int
194mpu401_uninit(struct mpu401 *m)
195{
196 int retval;
197
198 CMD(m, MPU_RESET);
199 retval = midi_uninit(m->mid);
200 if (retval)
201 return retval;
202 free(m, M_MIDI);
203 return 0;
204}
205
206static int
207mpu401_minit(kobj_t obj, struct mpu401 *m)
208{
209 int i;
210
211 CMD(m, MPU_RESET);
212 CMD(m, MPU_UART);
213 return 0;
214 i=0;
215 while(++i<2000) {
216 if(RXRDY(m))
217 if(READ(m) == MPU_ACK)
218 break;
219 }
220
221 if( i < 2000 ) {
222 CMD(m, MPU_UART);
223 return 0;
224 }
225 printf("mpu401_minit failed active sensing\n");
226 return 1;
227}
228
229
230int
231mpu401_muninit(kobj_t obj, struct mpu401 *m)
232{
233
234 return MPUFOI_UNINIT(m, m->cookie);
235}
236
237int
238mpu401_minqsize(kobj_t obj, struct mpu401 *m)
239{
240 return 128;
241}
242
243int
244mpu401_moutqsize(kobj_t obj, struct mpu401 *m)
245{
246 return 128;
247}
248
249static void
250mpu401_mcallback(kobj_t obj, struct mpu401 *m, int flags)
251{
252#if 0
253 printf("mpu401_callback %s %s %s %s\n",
254 flags & M_RX ? "M_RX" : "",
255 flags & M_TX ? "M_TX" : "",
256 flags & M_RXEN ? "M_RXEN" : "",
257 flags & M_TXEN ? "M_TXEN" : "" );
258#endif
259 if (flags & M_TXEN && m->si) {
260 callout_reset(&m->timer, 1, mpu401_timeout, m);
261 }
262
263 m->flags = flags;
264}
265
266static void
267mpu401_mcallbackp(kobj_t obj, struct mpu401 *m, int flags)
268{
269/* printf("mpu401_callbackp\n"); */
270 mpu401_mcallback(obj, m, flags);
271}
272
273static const char *
274mpu401_mdescr(kobj_t obj, struct mpu401 *m, int verbosity)
275{
276
277 return "descr mpu401";
278}
279
280static const char *
281mpu401_mprovider(kobj_t obj, struct mpu401 *m)
282{
283 return "provider mpu401";
284}