1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 31 #include <sys/param.h> 32 #include <sys/types.h> 33 #include <sys/bus.h> 34 #include <machine/bus.h> 35 #include <sys/rman.h> 36 #include <sys/systm.h> 37 #include <sys/sbuf.h> 38 #include <sys/queue.h> 39 #include <sys/lock.h> 40 #include <sys/mutex.h> 41 42 #ifdef HAVE_KERNEL_OPTION_HEADERS 43 #include "opt_snd.h" 44 #endif 45 46 #include <dev/sound/pcm/sound.h> 47 48 #include <dev/sound/midi/midi.h> 49 #include <dev/sound/midi/mpu401.h> 50 #include "mpufoi_if.h" 51 52 #include <dev/sound/pci/emuxkireg.h> 53 #include <dev/sound/pci/emu10kx.h> 54 55 struct emu_midi_softc { 56 struct mtx mtx; 57 device_t dev; 58 struct mpu401 *mpu; 59 mpu401_intr_t *mpu_intr; 60 struct emu_sc_info *card; 61 int port; /* I/O port or I/O ptr reg */ 62 int is_emu10k1; 63 int fflags; /* File flags */ 64 int ihandle; /* interrupt manager handle */ 65 }; 66 67 static uint32_t emu_midi_card_intr(void *p, uint32_t arg); 68 69 static unsigned char 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 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 96 emu_muninit(struct mpu401 *arg __unused, void *cookie) 97 { 98 struct emu_midi_softc *sc = cookie; 99 100 mtx_lock(&sc->mtx); 101 sc->mpu_intr = NULL; 102 mtx_unlock(&sc->mtx); 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 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 132 emu_midi_intr(void *p) 133 { 134 (void)emu_midi_card_intr(p, 0); 135 } 136 137 static int 138 emu_midi_probe(device_t dev) 139 { 140 struct emu_midi_softc *scp; 141 uintptr_t is_emu10k1; 142 143 scp = device_get_softc(dev); 144 bzero(scp, sizeof(*scp)); 145 BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_ISEMU10K1, &is_emu10k1); 146 scp->is_emu10k1 = is_emu10k1 ? 1 : 0; 147 148 device_set_desc(dev, "EMU10Kx MIDI Interface"); 149 return (0); 150 } 151 152 static int 153 emu_midi_attach(device_t dev) 154 { 155 struct emu_midi_softc * scp; 156 struct emu_midiinfo *midiinfo; 157 uint32_t inte_val, ipr_val; 158 159 scp = device_get_softc(dev); 160 161 scp->dev = dev; 162 midiinfo = (struct emu_midiinfo *)device_get_ivars(dev); 163 scp->port = midiinfo->port; 164 scp->card = midiinfo->card; 165 166 mtx_init(&scp->mtx, device_get_nameunit(dev), "midi softc", MTX_DEF); 167 168 if (scp->is_emu10k1) { 169 /* SB Live! - only one MIDI device here */ 170 inte_val = 0; 171 /* inte_val |= EMU_INTE_MIDITXENABLE;*/ 172 inte_val |= EMU_INTE_MIDIRXENABLE; 173 ipr_val = EMU_IPR_MIDITRANSBUFE; 174 ipr_val |= EMU_IPR_MIDIRECVBUFE; 175 } else { 176 if (scp->port == EMU_A_MUDATA1) { 177 /* EXTERNAL MIDI (AudigyDrive) */ 178 inte_val = 0; 179 /* inte_val |= A_EMU_INTE_MIDITXENABLE1;*/ 180 inte_val |= EMU_INTE_MIDIRXENABLE; 181 ipr_val = EMU_IPR_MIDITRANSBUFE; 182 ipr_val |= EMU_IPR_MIDIRECVBUFE; 183 } else { 184 /* MIDI hw config port 2 */ 185 inte_val = 0; 186 /* inte_val |= A_EMU_INTE_MIDITXENABLE2;*/ 187 inte_val |= EMU_INTE_A_MIDIRXENABLE2; 188 ipr_val = EMU_IPR_A_MIDITRANSBUFE2; 189 ipr_val |= EMU_IPR_A_MIDIRECBUFE2; 190 } 191 } 192 193 scp->ihandle = emu_intr_register(scp->card, inte_val, ipr_val, &emu_midi_card_intr, scp); 194 /* Init the interface. */ 195 scp->mpu = mpu401_init(&emu_mpu_class, scp, emu_midi_intr, &scp->mpu_intr); 196 if (scp->mpu == NULL) { 197 emu_intr_unregister(scp->card, scp->ihandle); 198 mtx_destroy(&scp->mtx); 199 return (ENOMEM); 200 } 201 /* 202 * XXX I don't know how to check for Live!Drive / AudigyDrive 203 * presence. Let's hope that IR enabling code will not harm if 204 * it is not present. 205 */ 206 if (scp->is_emu10k1) 207 emu_enable_ir(scp->card); 208 else { 209 if (scp->port == EMU_A_MUDATA1) 210 emu_enable_ir(scp->card); 211 } 212 213 return (0); 214 } 215 216 static int 217 emu_midi_detach(device_t dev) 218 { 219 struct emu_midi_softc *scp; 220 221 scp = device_get_softc(dev); 222 mpu401_uninit(scp->mpu); 223 emu_intr_unregister(scp->card, scp->ihandle); 224 mtx_destroy(&scp->mtx); 225 return (0); 226 } 227 228 static device_method_t emu_midi_methods[] = { 229 DEVMETHOD(device_probe, emu_midi_probe), 230 DEVMETHOD(device_attach, emu_midi_attach), 231 DEVMETHOD(device_detach, emu_midi_detach), 232 233 DEVMETHOD_END 234 }; 235 236 static driver_t emu_midi_driver = { 237 "midi", 238 emu_midi_methods, 239 sizeof(struct emu_midi_softc), 240 }; 241 DRIVER_MODULE(snd_emu10kx_midi, emu10kx, emu_midi_driver, 0, 0); 242 MODULE_DEPEND(snd_emu10kx_midi, snd_emu10kx, SND_EMU10KX_MINVER, SND_EMU10KX_PREFVER, SND_EMU10KX_MAXVER); 243 MODULE_DEPEND(snd_emu10kx_midi, sound, 1, 1, 1); 244 MODULE_VERSION(snd_emu10kx_midi, SND_EMU10KX_PREFVER); 245