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/chip.h> 47 #include <dev/sound/pcm/sound.h> 48 49 #include <dev/sound/midi/midi.h> 50 #include <dev/sound/midi/mpu401.h> 51 #include "mpufoi_if.h" 52 53 #include <dev/sound/pci/emuxkireg.h> 54 #include <dev/sound/pci/emu10kx.h> 55 56 struct emu_midi_softc { 57 struct mtx mtx; 58 device_t dev; 59 struct mpu401 *mpu; 60 mpu401_intr_t *mpu_intr; 61 struct emu_sc_info *card; 62 int port; /* I/O port or I/O ptr reg */ 63 int is_emu10k1; 64 int fflags; /* File flags */ 65 int ihandle; /* interrupt manager handle */ 66 }; 67 68 static uint32_t emu_midi_card_intr(void *p, uint32_t arg); 69 70 static unsigned char 71 emu_mread(struct mpu401 *arg __unused, void *cookie, int reg) 72 { 73 struct emu_midi_softc *sc = cookie; 74 unsigned int d; 75 76 d = 0; 77 if (sc->is_emu10k1) 78 d = emu_rd(sc->card, 0x18 + reg, 1); 79 else 80 d = emu_rdptr(sc->card, 0, sc->port + reg); 81 82 return (d); 83 } 84 85 static void 86 emu_mwrite(struct mpu401 *arg __unused, void *cookie, int reg, unsigned char b) 87 { 88 struct emu_midi_softc *sc = cookie; 89 90 if (sc->is_emu10k1) 91 emu_wr(sc->card, 0x18 + reg, b, 1); 92 else 93 emu_wrptr(sc->card, 0, sc->port + reg, b); 94 } 95 96 static int 97 emu_muninit(struct mpu401 *arg __unused, void *cookie) 98 { 99 struct emu_midi_softc *sc = cookie; 100 101 mtx_lock(&sc->mtx); 102 sc->mpu_intr = NULL; 103 mtx_unlock(&sc->mtx); 104 105 return (0); 106 } 107 108 static kobj_method_t emu_mpu_methods[] = { 109 KOBJMETHOD(mpufoi_read, emu_mread), 110 KOBJMETHOD(mpufoi_write, emu_mwrite), 111 KOBJMETHOD(mpufoi_uninit, emu_muninit), 112 KOBJMETHOD_END 113 }; 114 static DEFINE_CLASS(emu_mpu, emu_mpu_methods, 0); 115 116 static uint32_t 117 emu_midi_card_intr(void *p, uint32_t intr_status) 118 { 119 struct emu_midi_softc *sc = (struct emu_midi_softc *)p; 120 if (sc->mpu_intr) 121 (sc->mpu_intr) (sc->mpu); 122 if (sc->mpu_intr == NULL) { 123 /* We should read MIDI event to unlock card after 124 * interrupt. XXX - check, why this happens. */ 125 if (bootverbose) 126 device_printf(sc->dev, "midi interrupt %08x without interrupt handler, force mread!\n", intr_status); 127 (void)emu_mread((void *)(NULL), sc, 0); 128 } 129 return (intr_status); /* Acknowledge everything */ 130 } 131 132 static void 133 emu_midi_intr(void *p) 134 { 135 (void)emu_midi_card_intr(p, 0); 136 } 137 138 static int 139 emu_midi_probe(device_t dev) 140 { 141 struct emu_midi_softc *scp; 142 uintptr_t func, is_emu10k1; 143 144 BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func); 145 if (func != SCF_MIDI) 146 return (ENXIO); 147 148 scp = device_get_softc(dev); 149 bzero(scp, sizeof(*scp)); 150 BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_ISEMU10K1, &is_emu10k1); 151 scp->is_emu10k1 = is_emu10k1 ? 1 : 0; 152 153 device_set_desc(dev, "EMU10Kx MIDI Interface"); 154 return (0); 155 } 156 157 static int 158 emu_midi_attach(device_t dev) 159 { 160 struct emu_midi_softc * scp; 161 struct sndcard_func *func; 162 struct emu_midiinfo *midiinfo; 163 uint32_t inte_val, ipr_val; 164 165 scp = device_get_softc(dev); 166 func = device_get_ivars(dev); 167 168 scp->dev = dev; 169 midiinfo = (struct emu_midiinfo *)func->varinfo; 170 scp->port = midiinfo->port; 171 scp->card = midiinfo->card; 172 173 mtx_init(&scp->mtx, device_get_nameunit(dev), "midi softc", MTX_DEF); 174 175 if (scp->is_emu10k1) { 176 /* SB Live! - only one MIDI device here */ 177 inte_val = 0; 178 /* inte_val |= EMU_INTE_MIDITXENABLE;*/ 179 inte_val |= EMU_INTE_MIDIRXENABLE; 180 ipr_val = EMU_IPR_MIDITRANSBUFE; 181 ipr_val |= EMU_IPR_MIDIRECVBUFE; 182 } else { 183 if (scp->port == EMU_A_MUDATA1) { 184 /* EXTERNAL MIDI (AudigyDrive) */ 185 inte_val = 0; 186 /* inte_val |= A_EMU_INTE_MIDITXENABLE1;*/ 187 inte_val |= EMU_INTE_MIDIRXENABLE; 188 ipr_val = EMU_IPR_MIDITRANSBUFE; 189 ipr_val |= EMU_IPR_MIDIRECVBUFE; 190 } else { 191 /* MIDI hw config port 2 */ 192 inte_val = 0; 193 /* inte_val |= A_EMU_INTE_MIDITXENABLE2;*/ 194 inte_val |= EMU_INTE_A_MIDIRXENABLE2; 195 ipr_val = EMU_IPR_A_MIDITRANSBUFE2; 196 ipr_val |= EMU_IPR_A_MIDIRECBUFE2; 197 } 198 } 199 200 scp->ihandle = emu_intr_register(scp->card, inte_val, ipr_val, &emu_midi_card_intr, scp); 201 /* Init the interface. */ 202 scp->mpu = mpu401_init(&emu_mpu_class, scp, emu_midi_intr, &scp->mpu_intr); 203 if (scp->mpu == NULL) { 204 emu_intr_unregister(scp->card, scp->ihandle); 205 mtx_destroy(&scp->mtx); 206 return (ENOMEM); 207 } 208 /* 209 * XXX I don't know how to check for Live!Drive / AudigyDrive 210 * presence. Let's hope that IR enabling code will not harm if 211 * it is not present. 212 */ 213 if (scp->is_emu10k1) 214 emu_enable_ir(scp->card); 215 else { 216 if (scp->port == EMU_A_MUDATA1) 217 emu_enable_ir(scp->card); 218 } 219 220 return (0); 221 } 222 223 static int 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 mtx_destroy(&scp->mtx); 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, 0, 0); 249 MODULE_DEPEND(snd_emu10kx_midi, snd_emu10kx, SND_EMU10KX_MINVER, SND_EMU10KX_PREFVER, SND_EMU10KX_MAXVER); 250 MODULE_DEPEND(snd_emu10kx_midi, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER); 251 MODULE_VERSION(snd_emu10kx_midi, SND_EMU10KX_PREFVER); 252