1 /*-
2 * Copyright (c) 1999 Seigo Tanimura
3 * Copyright (c) 2003 Mathew Kanner
4 * Copyright (c) 2003-2006 Yuriy Tsibizov <yuriy.tsibizov@gfk.ru>
5 * All rights reserved
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/dev/sound/pci/emu10kx-midi.c 246128 2013-01-30 18:01:20Z sbz $
29 */
30
31 #include <sys/param.h>
32 #include <sys/types.h>
33 #include <sys/bus.h>
34 #include <sys/rman.h>
35 #include <sys/systm.h>
36 #include <sys/sbuf.h>
37 #include <sys/queue.h>
38 #include <sys/lock.h>
39
40 #ifdef HAVE_KERNEL_OPTION_HEADERS
41 #include "opt_snd.h"
42 #endif
43
44 #include <dev/sound/chip.h>
45 #include <dev/sound/pcm/sound.h>
46
47 #include <dev/sound/midi/midi.h>
48 #include <dev/sound/midi/mpu401.h>
49 #include "mpufoi_if.h"
50
51 #include <dev/sound/pci/emuxkireg.h>
52 #include <dev/sound/pci/emu10kx.h>
53
54 struct emu_midi_softc {
55 struct lock lock;
56 device_t dev;
57 struct mpu401 *mpu;
58 mpu401_intr_t *mpu_intr;
59 struct emu_sc_info *card;
60 int port; /* I/O port or I/O ptr reg */
61 int is_emu10k1;
62 int fflags; /* File flags */
63 int ihandle; /* interrupt manager handle */
64 };
65
66 static uint32_t emu_midi_card_intr(void *p, uint32_t arg);
67 static devclass_t emu_midi_devclass;
68
69 static unsigned char
emu_mread(struct mpu401 * arg __unused,void * cookie,int reg)70 emu_mread(struct mpu401 *arg __unused, void *cookie, int reg)
71 {
72 struct emu_midi_softc *sc = cookie;
73 unsigned int d;
74
75 d = 0;
76 if (sc->is_emu10k1)
77 d = emu_rd(sc->card, 0x18 + reg, 1);
78 else
79 d = emu_rdptr(sc->card, 0, sc->port + reg);
80
81 return (d);
82 }
83
84 static void
emu_mwrite(struct mpu401 * arg __unused,void * cookie,int reg,unsigned char b)85 emu_mwrite(struct mpu401 *arg __unused, void *cookie, int reg, unsigned char b)
86 {
87 struct emu_midi_softc *sc = cookie;
88
89 if (sc->is_emu10k1)
90 emu_wr(sc->card, 0x18 + reg, b, 1);
91 else
92 emu_wrptr(sc->card, 0, sc->port + reg, b);
93 }
94
95 static int
emu_muninit(struct mpu401 * arg __unused,void * cookie)96 emu_muninit(struct mpu401 *arg __unused, void *cookie)
97 {
98 struct emu_midi_softc *sc = cookie;
99
100 lockmgr(&sc->lock, LK_EXCLUSIVE);
101 sc->mpu_intr = NULL;
102 lockmgr(&sc->lock, LK_RELEASE);
103
104 return (0);
105 }
106
107 static kobj_method_t emu_mpu_methods[] = {
108 KOBJMETHOD(mpufoi_read, emu_mread),
109 KOBJMETHOD(mpufoi_write, emu_mwrite),
110 KOBJMETHOD(mpufoi_uninit, emu_muninit),
111 KOBJMETHOD_END
112 };
113 static DEFINE_CLASS(emu_mpu, emu_mpu_methods, 0);
114
115 static uint32_t
emu_midi_card_intr(void * p,uint32_t intr_status)116 emu_midi_card_intr(void *p, uint32_t intr_status)
117 {
118 struct emu_midi_softc *sc = (struct emu_midi_softc *)p;
119 if (sc->mpu_intr)
120 (sc->mpu_intr) (sc->mpu);
121 if (sc->mpu_intr == NULL) {
122 /* We should read MIDI event to unlock card after
123 * interrupt. XXX - check, why this happens. */
124 if (bootverbose)
125 device_printf(sc->dev, "midi interrupt %08x without interrupt handler, force mread!\n", intr_status);
126 (void)emu_mread((void *)(NULL), sc, 0);
127 }
128 return (intr_status); /* Acknowledge everything */
129 }
130
131 static void
emu_midi_intr(void * p)132 emu_midi_intr(void *p)
133 {
134 (void)emu_midi_card_intr(p, 0);
135 }
136
137 static int
emu_midi_probe(device_t dev)138 emu_midi_probe(device_t dev)
139 {
140 struct emu_midi_softc *scp;
141 uintptr_t func, r, is_emu10k1;
142
143 r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func);
144 if (func != SCF_MIDI)
145 return (ENXIO);
146
147 scp = device_get_softc(dev);
148 bzero(scp, sizeof(*scp));
149 r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_ISEMU10K1, &is_emu10k1);
150 scp->is_emu10k1 = is_emu10k1 ? 1 : 0;
151
152 device_set_desc(dev, "EMU10Kx MIDI Interface");
153 return (0);
154 }
155
156 static int
emu_midi_attach(device_t dev)157 emu_midi_attach(device_t dev)
158 {
159 struct emu_midi_softc * scp;
160 struct sndcard_func *func;
161 struct emu_midiinfo *midiinfo;
162 uint32_t inte_val, ipr_val;
163
164 scp = device_get_softc(dev);
165 func = device_get_ivars(dev);
166
167 scp->dev = dev;
168 midiinfo = (struct emu_midiinfo *)func->varinfo;
169 scp->port = midiinfo->port;
170 scp->card = midiinfo->card;
171
172 lockinit(&scp->lock, device_get_nameunit(dev), 0, LK_CANRECURSE);
173
174 if (scp->is_emu10k1) {
175 /* SB Live! - only one MIDI device here */
176 inte_val = 0;
177 /* inte_val |= EMU_INTE_MIDITXENABLE;*/
178 inte_val |= EMU_INTE_MIDIRXENABLE;
179 ipr_val = EMU_IPR_MIDITRANSBUFE;
180 ipr_val |= EMU_IPR_MIDIRECVBUFE;
181 } else {
182 if (scp->port == EMU_A_MUDATA1) {
183 /* EXTERNAL MIDI (AudigyDrive) */
184 inte_val = 0;
185 /* inte_val |= A_EMU_INTE_MIDITXENABLE1;*/
186 inte_val |= EMU_INTE_MIDIRXENABLE;
187 ipr_val = EMU_IPR_MIDITRANSBUFE;
188 ipr_val |= EMU_IPR_MIDIRECVBUFE;
189 } else {
190 /* MIDI hw config port 2 */
191 inte_val = 0;
192 /* inte_val |= A_EMU_INTE_MIDITXENABLE2;*/
193 inte_val |= EMU_INTE_A_MIDIRXENABLE2;
194 ipr_val = EMU_IPR_A_MIDITRANSBUFE2;
195 ipr_val |= EMU_IPR_A_MIDIRECBUFE2;
196 }
197 }
198
199 scp->ihandle = emu_intr_register(scp->card, inte_val, ipr_val, &emu_midi_card_intr, scp);
200 /* Init the interface. */
201 scp->mpu = mpu401_init(&emu_mpu_class, scp, emu_midi_intr, &scp->mpu_intr);
202 if (scp->mpu == NULL) {
203 emu_intr_unregister(scp->card, scp->ihandle);
204 lockuninit(&scp->lock);
205 return (ENOMEM);
206 }
207 /*
208 * XXX I don't know how to check for Live!Drive / AudigyDrive
209 * presence. Let's hope that IR enabling code will not harm if
210 * it is not present.
211 */
212 if (scp->is_emu10k1)
213 emu_enable_ir(scp->card);
214 else {
215 if (scp->port == EMU_A_MUDATA1)
216 emu_enable_ir(scp->card);
217 }
218
219 return (0);
220 }
221
222
223 static int
emu_midi_detach(device_t dev)224 emu_midi_detach(device_t dev)
225 {
226 struct emu_midi_softc *scp;
227
228 scp = device_get_softc(dev);
229 mpu401_uninit(scp->mpu);
230 emu_intr_unregister(scp->card, scp->ihandle);
231 lockuninit(&scp->lock);
232 return (0);
233 }
234
235 static device_method_t emu_midi_methods[] = {
236 DEVMETHOD(device_probe, emu_midi_probe),
237 DEVMETHOD(device_attach, emu_midi_attach),
238 DEVMETHOD(device_detach, emu_midi_detach),
239
240 DEVMETHOD_END
241 };
242
243 static driver_t emu_midi_driver = {
244 "midi",
245 emu_midi_methods,
246 sizeof(struct emu_midi_softc),
247 };
248 DRIVER_MODULE(snd_emu10kx_midi, emu10kx, emu_midi_driver, emu_midi_devclass,
249 NULL, NULL);
250 MODULE_DEPEND(snd_emu10kx_midi, snd_emu10kx, SND_EMU10KX_MINVER, SND_EMU10KX_PREFVER, SND_EMU10KX_MAXVER);
251 MODULE_DEPEND(snd_emu10kx_midi, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
252 MODULE_VERSION(snd_emu10kx_midi, SND_EMU10KX_PREFVER);
253