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
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6 * modification, are permitted provided that the following conditions 7 * are met: 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. 13 * 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 |
29 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> 35#include <sys/lock.h> 36#include <sys/mutex.h> 37#include <sys/proc.h> 38#include <sys/systm.h> 39#include <sys/kobj.h> 40#include <sys/malloc.h> 41#include <sys/bus.h> /* to get driver_intr_t */ 42 43#include <dev/sound/midi/mpu401.h> 44#include <dev/sound/midi/midi.h> 45 46#include "mpu_if.h" 47#include "mpufoi_if.h" 48 49#define MPU_DATAPORT 0 50#define MPU_CMDPORT 1 51#define MPU_STATPORT 1 52#define MPU_RESET 0xff 53#define MPU_UART 0x3f 54#define MPU_ACK 0xfe 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 60 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) 65 66struct mpu401 { 67 KOBJ_FIELDS; 68 struct snd_midi *mid; 69 int flags; 70 driver_intr_t *si; 71 void *cookie; 72 struct callout timer; 73}; 74 75static void mpu401_timeout(void *m) ; 76static mpu401_intr_t mpu401_intr; 77 78static int mpu401_minit(kobj_t obj, struct mpu401 *m); 79static int mpu401_muninit(kobj_t obj, struct mpu401 *m); 80static int mpu401_minqsize(kobj_t obj, struct mpu401 *m); 81static int mpu401_moutqsize(kobj_t obj, struct mpu401 *m); 82static void mpu401_mcallback(kobj_t obj, struct mpu401 *m, int flags); 83static void mpu401_mcallbackp(kobj_t obj, struct mpu401 *m, int flags); 84static const char *mpu401_mdescr(kobj_t obj, struct mpu401 *m, int verbosity); 85static const char *mpu401_mprovider(kobj_t obj, struct mpu401 *m); 86 87static 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), 96 { 0, 0 } 97}; 98 99DEFINE_CLASS(mpu401, mpu401_methods, 0); 100 101void 102mpu401_timeout(void *a) 103{ struct mpu401 *m=(struct mpu401 *)a; 104 105 if (m->si) 106 (m->si)(m->cookie); 107 108} 109static int 110mpu401_intr(struct mpu401 *m) 111{ 112#define MPU_INTR_BUF 16 113 MIDI_TYPE b[MPU_INTR_BUF]; 114 int i; 115 int s; 116/* 117 printf("mpu401_intr\n"); 118*/ 119#define RXRDY(m) ( (STATUS(m) & MPU_INPUTBUSY) == 0) 120#define TXRDY(m) ( (STATUS(m) & MPU_OUTPUTBUSY) == 0) 121#if 0 122#define D(x,l) printf("mpu401_intr %d %x %s %s\n",l, x, x&MPU_INPUTBUSY?"RX":"", x&MPU_OUTPUTBUSY?"TX":"") 123#else 124#define D(x,l) 125#endif 126 i=0; 127 s = STATUS(m); 128 D(s,1); 129 while ( (s&MPU_INPUTBUSY) == 0 && i<MPU_INTR_BUF) { 130 b[i]=READ(m); 131/* 132 printf("mpu401_intr in i %d d %d\n", i, b[i]); 133*/ 134 i++; 135 s = STATUS(m); 136 } 137 if (i) midi_in(m->mid, b, i); 138 i=0; 139 while ( !(s&MPU_OUTPUTBUSY) && i<MPU_INTR_BUF) { 140 if(midi_out(m->mid, b, 1)) { 141/* 142 printf("mpu401_intr out i %d d %d\n", i, b[0]); 143*/ 144 145 WRITE(m, *b); 146 } 147 else { 148/* 149 printf("mpu401_intr write: no output\n"); 150*/ 151 return 0; 152 } 153 i++; 154 /* DELAY(100); */ 155 s = STATUS(m); 156 } 157 158 if ((m->flags & M_TXEN) && (m->si) ) { 159 callout_reset(&m->timer, 1, mpu401_timeout, m); 160 } 161 162 return (m->flags & M_TXEN) == M_TXEN; 163} 164 165struct mpu401 * 166mpu401_init(kobj_class_t cls, void *cookie,driver_intr_t softintr, mpu401_intr_t **cb) 167{ 168 struct mpu401 *m; 169 170 *cb = NULL; 171 m = malloc(sizeof(*m), M_MIDI, M_NOWAIT | M_ZERO); 172 173 if(!m) 174 return NULL; 175 176 kobj_init((kobj_t)m, cls); 177 178 callout_init(&m->timer, 1); 179 180 m->si = softintr; 181 m->cookie = cookie; 182 m->flags = 0; 183 184 m->mid = midi_init(&mpu401_class,0,0,m); 185 if (!m->mid) 186 goto err; 187 *cb = mpu401_intr; 188 return m; 189err: 190 printf("mpu401_init error\n"); 191 free(m, M_MIDI); 192 return NULL; 193} 194 195int 196mpu401_uninit(struct mpu401 *m) 197{ 198 int retval; 199 200 CMD(m, MPU_RESET); 201 retval = midi_uninit(m->mid); 202 if (retval) 203 return retval; 204 free(m, M_MIDI); 205 return 0; 206} 207 208static int 209mpu401_minit(kobj_t obj, struct mpu401 *m) 210{ 211 int i; 212 213 CMD(m, MPU_RESET); 214 CMD(m, MPU_UART); 215 return 0; 216 i=0; 217 while(++i<2000) { 218 if(RXRDY(m)) 219 if(READ(m) == MPU_ACK) 220 break; 221 } 222 223 if( i < 2000 ) { 224 CMD(m, MPU_UART); 225 return 0; 226 } 227 printf("mpu401_minit failed active sensing\n"); 228 return 1; 229} 230 231 232int 233mpu401_muninit(kobj_t obj, struct mpu401 *m) 234{ 235 236 return MPUFOI_UNINIT(m, m->cookie); 237} 238 239int 240mpu401_minqsize(kobj_t obj, struct mpu401 *m) 241{ 242 return 128; 243} 244 245int 246mpu401_moutqsize(kobj_t obj, struct mpu401 *m) 247{ 248 return 128; 249} 250 251static void 252mpu401_mcallback(kobj_t obj, struct mpu401 *m, int flags) 253{ 254#if 0 255 printf("mpu401_callback %s %s %s %s\n", 256 flags & M_RX ? "M_RX" : "", 257 flags & M_TX ? "M_TX" : "", 258 flags & M_RXEN ? "M_RXEN" : "", 259 flags & M_TXEN ? "M_TXEN" : "" ); 260#endif 261 if (flags & M_TXEN && m->si) { 262 callout_reset(&m->timer, 1, mpu401_timeout, m); 263 } 264 265 m->flags = flags; 266} 267 268static void 269mpu401_mcallbackp(kobj_t obj, struct mpu401 *m, int flags) 270{ 271/* printf("mpu401_callbackp\n"); */ 272 mpu401_mcallback(obj, m, flags); 273} 274 275static const char * 276mpu401_mdescr(kobj_t obj, struct mpu401 *m, int verbosity) 277{ 278 279 return "descr mpu401"; 280} 281 282static const char * 283mpu401_mprovider(kobj_t obj, struct mpu401 *m) 284{ 285 return "provider mpu401"; 286}
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