1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1999 Seigo Tanimura 5 * Copyright (c) 2003 Mathew Kanner 6 * Copyright (c) 2003-2006 Yuriy Tsibizov <yuriy.tsibizov@gfk.ru> 7 * All rights reserved 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $FreeBSD$ 31 */ 32 33 #include <sys/param.h> 34 #include <sys/types.h> 35 #include <sys/bus.h> 36 #include <machine/bus.h> 37 #include <sys/rman.h> 38 #include <sys/systm.h> 39 #include <sys/sbuf.h> 40 #include <sys/queue.h> 41 #include <sys/lock.h> 42 #include <sys/mutex.h> 43 44 #ifdef HAVE_KERNEL_OPTION_HEADERS 45 #include "opt_snd.h" 46 #endif 47 48 #include <dev/sound/chip.h> 49 #include <dev/sound/pcm/sound.h> 50 51 #include <dev/sound/midi/midi.h> 52 #include <dev/sound/midi/mpu401.h> 53 #include "mpufoi_if.h" 54 55 #include <dev/sound/pci/emuxkireg.h> 56 #include <dev/sound/pci/emu10kx.h> 57 58 struct emu_midi_softc { 59 struct mtx mtx; 60 device_t dev; 61 struct mpu401 *mpu; 62 mpu401_intr_t *mpu_intr; 63 struct emu_sc_info *card; 64 int port; /* I/O port or I/O ptr reg */ 65 int is_emu10k1; 66 int fflags; /* File flags */ 67 int ihandle; /* interrupt manager handle */ 68 }; 69 70 static uint32_t emu_midi_card_intr(void *p, uint32_t arg); 71 72 static unsigned char 73 emu_mread(struct mpu401 *arg __unused, void *cookie, int reg) 74 { 75 struct emu_midi_softc *sc = cookie; 76 unsigned int d; 77 78 d = 0; 79 if (sc->is_emu10k1) 80 d = emu_rd(sc->card, 0x18 + reg, 1); 81 else 82 d = emu_rdptr(sc->card, 0, sc->port + reg); 83 84 return (d); 85 } 86 87 static void 88 emu_mwrite(struct mpu401 *arg __unused, void *cookie, int reg, unsigned char b) 89 { 90 struct emu_midi_softc *sc = cookie; 91 92 if (sc->is_emu10k1) 93 emu_wr(sc->card, 0x18 + reg, b, 1); 94 else 95 emu_wrptr(sc->card, 0, sc->port + reg, b); 96 } 97 98 static int 99 emu_muninit(struct mpu401 *arg __unused, void *cookie) 100 { 101 struct emu_midi_softc *sc = cookie; 102 103 mtx_lock(&sc->mtx); 104 sc->mpu_intr = NULL; 105 mtx_unlock(&sc->mtx); 106 107 return (0); 108 } 109 110 static kobj_method_t emu_mpu_methods[] = { 111 KOBJMETHOD(mpufoi_read, emu_mread), 112 KOBJMETHOD(mpufoi_write, emu_mwrite), 113 KOBJMETHOD(mpufoi_uninit, emu_muninit), 114 KOBJMETHOD_END 115 }; 116 static DEFINE_CLASS(emu_mpu, emu_mpu_methods, 0); 117 118 static uint32_t 119 emu_midi_card_intr(void *p, uint32_t intr_status) 120 { 121 struct emu_midi_softc *sc = (struct emu_midi_softc *)p; 122 if (sc->mpu_intr) 123 (sc->mpu_intr) (sc->mpu); 124 if (sc->mpu_intr == NULL) { 125 /* We should read MIDI event to unlock card after 126 * interrupt. XXX - check, why this happens. */ 127 if (bootverbose) 128 device_printf(sc->dev, "midi interrupt %08x without interrupt handler, force mread!\n", intr_status); 129 (void)emu_mread((void *)(NULL), sc, 0); 130 } 131 return (intr_status); /* Acknowledge everything */ 132 } 133 134 static void 135 emu_midi_intr(void *p) 136 { 137 (void)emu_midi_card_intr(p, 0); 138 } 139 140 static int 141 emu_midi_probe(device_t dev) 142 { 143 struct emu_midi_softc *scp; 144 uintptr_t func, is_emu10k1; 145 146 BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func); 147 if (func != SCF_MIDI) 148 return (ENXIO); 149 150 scp = device_get_softc(dev); 151 bzero(scp, sizeof(*scp)); 152 BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_ISEMU10K1, &is_emu10k1); 153 scp->is_emu10k1 = is_emu10k1 ? 1 : 0; 154 155 device_set_desc(dev, "EMU10Kx MIDI Interface"); 156 return (0); 157 } 158 159 static int 160 emu_midi_attach(device_t dev) 161 { 162 struct emu_midi_softc * scp; 163 struct sndcard_func *func; 164 struct emu_midiinfo *midiinfo; 165 uint32_t inte_val, ipr_val; 166 167 scp = device_get_softc(dev); 168 func = device_get_ivars(dev); 169 170 scp->dev = dev; 171 midiinfo = (struct emu_midiinfo *)func->varinfo; 172 scp->port = midiinfo->port; 173 scp->card = midiinfo->card; 174 175 mtx_init(&scp->mtx, device_get_nameunit(dev), "midi softc", MTX_DEF); 176 177 if (scp->is_emu10k1) { 178 /* SB Live! - only one MIDI device here */ 179 inte_val = 0; 180 /* inte_val |= EMU_INTE_MIDITXENABLE;*/ 181 inte_val |= EMU_INTE_MIDIRXENABLE; 182 ipr_val = EMU_IPR_MIDITRANSBUFE; 183 ipr_val |= EMU_IPR_MIDIRECVBUFE; 184 } else { 185 if (scp->port == EMU_A_MUDATA1) { 186 /* EXTERNAL MIDI (AudigyDrive) */ 187 inte_val = 0; 188 /* inte_val |= A_EMU_INTE_MIDITXENABLE1;*/ 189 inte_val |= EMU_INTE_MIDIRXENABLE; 190 ipr_val = EMU_IPR_MIDITRANSBUFE; 191 ipr_val |= EMU_IPR_MIDIRECVBUFE; 192 } else { 193 /* MIDI hw config port 2 */ 194 inte_val = 0; 195 /* inte_val |= A_EMU_INTE_MIDITXENABLE2;*/ 196 inte_val |= EMU_INTE_A_MIDIRXENABLE2; 197 ipr_val = EMU_IPR_A_MIDITRANSBUFE2; 198 ipr_val |= EMU_IPR_A_MIDIRECBUFE2; 199 } 200 } 201 202 scp->ihandle = emu_intr_register(scp->card, inte_val, ipr_val, &emu_midi_card_intr, scp); 203 /* Init the interface. */ 204 scp->mpu = mpu401_init(&emu_mpu_class, scp, emu_midi_intr, &scp->mpu_intr); 205 if (scp->mpu == NULL) { 206 emu_intr_unregister(scp->card, scp->ihandle); 207 mtx_destroy(&scp->mtx); 208 return (ENOMEM); 209 } 210 /* 211 * XXX I don't know how to check for Live!Drive / AudigyDrive 212 * presence. Let's hope that IR enabling code will not harm if 213 * it is not present. 214 */ 215 if (scp->is_emu10k1) 216 emu_enable_ir(scp->card); 217 else { 218 if (scp->port == EMU_A_MUDATA1) 219 emu_enable_ir(scp->card); 220 } 221 222 return (0); 223 } 224 225 static int 226 emu_midi_detach(device_t dev) 227 { 228 struct emu_midi_softc *scp; 229 230 scp = device_get_softc(dev); 231 mpu401_uninit(scp->mpu); 232 emu_intr_unregister(scp->card, scp->ihandle); 233 mtx_destroy(&scp->mtx); 234 return (0); 235 } 236 237 static device_method_t emu_midi_methods[] = { 238 DEVMETHOD(device_probe, emu_midi_probe), 239 DEVMETHOD(device_attach, emu_midi_attach), 240 DEVMETHOD(device_detach, emu_midi_detach), 241 242 DEVMETHOD_END 243 }; 244 245 static driver_t emu_midi_driver = { 246 "midi", 247 emu_midi_methods, 248 sizeof(struct emu_midi_softc), 249 }; 250 DRIVER_MODULE(snd_emu10kx_midi, emu10kx, emu_midi_driver, 0, 0); 251 MODULE_DEPEND(snd_emu10kx_midi, snd_emu10kx, SND_EMU10KX_MINVER, SND_EMU10KX_PREFVER, SND_EMU10KX_MAXVER); 252 MODULE_DEPEND(snd_emu10kx_midi, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER); 253 MODULE_VERSION(snd_emu10kx_midi, SND_EMU10KX_PREFVER); 254