1 /*- 2 * Copyright (c) 1999 Seigo Tanimura 3 * (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 * $FreeBSD$ 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 #include <dev/sound/chip.h> 43 #include <dev/sound/pcm/sound.h> 44 45 #include <dev/sound/midi/midi.h> 46 #include <dev/sound/midi/mpu401.h> 47 #include "mpufoi_if.h" 48 49 #include "opt_emu10kx.h" 50 #include <dev/sound/pci/emu10kx.h> 51 #include "emu10k1-alsa%diked.h" 52 53 struct emu_midi_softc { 54 struct mtx mtx; 55 device_t dev; 56 struct mpu401 *mpu; 57 mpu401_intr_t *mpu_intr; 58 struct emu_sc_info *card; 59 int port; /* I/O port or I/O ptr reg */ 60 int is_emu10k1; 61 int fflags; /* File flags */ 62 int ihandle; /* interrupt manager handle */ 63 }; 64 65 static uint32_t emu_midi_card_intr(void *p, uint32_t arg); 66 static devclass_t emu_midi_devclass; 67 68 static unsigned char 69 emu_mread(void *arg __unused, struct emu_midi_softc *sc, int reg) 70 { 71 unsigned int d; 72 73 d = 0; 74 if (sc->is_emu10k1) 75 d = emu_rd(sc->card, 0x18 + reg, 1); 76 else 77 d = emu_rdptr(sc->card, 0, sc->port + reg); 78 79 return (d); 80 } 81 82 static void 83 emu_mwrite(void *arg __unused, struct emu_midi_softc *sc, int reg, unsigned char b) 84 { 85 86 if (sc->is_emu10k1) 87 emu_wr(sc->card, 0x18 + reg, b, 1); 88 else 89 emu_wrptr(sc->card, 0, sc->port + reg, b); 90 } 91 92 static int 93 emu_muninit(void *arg __unused, struct emu_midi_softc *sc) 94 { 95 96 mtx_lock(&sc->mtx); 97 sc->mpu_intr = NULL; 98 mtx_unlock(&sc->mtx); 99 100 return (0); 101 } 102 103 static kobj_method_t emu_mpu_methods[] = { 104 KOBJMETHOD(mpufoi_read, emu_mread), 105 KOBJMETHOD(mpufoi_write, emu_mwrite), 106 KOBJMETHOD(mpufoi_uninit, emu_muninit), 107 {0, 0} 108 }; 109 static DEFINE_CLASS(emu_mpu, emu_mpu_methods, 0); 110 111 static uint32_t 112 emu_midi_card_intr(void *p, uint32_t intr_status) 113 { 114 struct emu_midi_softc *sc = (struct emu_midi_softc *)p; 115 if (sc->mpu_intr) 116 (sc->mpu_intr) (sc->mpu); 117 if (sc->mpu_intr == NULL) { 118 /* We should read MIDI event to unlock card after 119 * interrupt. XXX - check, why this happens. */ 120 #ifdef SND_EMU10KX_DEBUG 121 device_printf(sc->dev, "midi interrupt %08x without interrupt handler, force mread!\n", intr_status); 122 #endif 123 (void)emu_mread((void *)(NULL), sc, 0); 124 } 125 return (intr_status); /* Acknowledge everything */ 126 } 127 128 static void 129 emu_midi_intr(void *p) 130 { 131 (void)emu_midi_card_intr(p, 0); 132 } 133 134 static int 135 emu_midi_probe(device_t dev) 136 { 137 struct emu_midi_softc *scp; 138 uintptr_t func, r, is_emu10k1; 139 140 r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func); 141 if (func != SCF_MIDI) 142 return (ENXIO); 143 144 scp = device_get_softc(dev); 145 bzero(scp, sizeof(*scp)); 146 r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_ISEMU10K1, &is_emu10k1); 147 scp->is_emu10k1 = is_emu10k1 ? 1 : 0; 148 149 device_set_desc(dev, "EMU10Kx MIDI Interface"); 150 return (0); 151 } 152 153 static int 154 emu_midi_attach(device_t dev) 155 { 156 struct emu_midi_softc * scp; 157 struct sndcard_func *func; 158 struct emu_midiinfo *midiinfo; 159 uint32_t inte_val, ipr_val; 160 161 scp = device_get_softc(dev); 162 func = device_get_ivars(dev); 163 164 scp->dev = dev; 165 midiinfo = (struct emu_midiinfo *)func->varinfo; 166 scp->port = midiinfo->port; 167 scp->card = midiinfo->card; 168 169 mtx_init(&scp->mtx, "emu10kx_midi", NULL, MTX_DEF); 170 171 if (scp->is_emu10k1) { 172 /* SB Live! - only one MIDI device here */ 173 inte_val = 0; 174 /* inte_val |= INTE_MIDITXENABLE;*/ 175 inte_val |= INTE_MIDIRXENABLE; 176 ipr_val = IPR_MIDITRANSBUFEMPTY; 177 ipr_val |= IPR_MIDIRECVBUFEMPTY; 178 } else { 179 if (scp->port == A_MUDATA1) { 180 /* EXTERNAL MIDI (AudigyDrive) */ 181 inte_val = 0; 182 /* inte_val |= A_INTE_MIDITXENABLE1;*/ 183 inte_val |= INTE_MIDIRXENABLE; 184 ipr_val = IPR_MIDITRANSBUFEMPTY; 185 ipr_val |= IPR_MIDIRECVBUFEMPTY; 186 } else { 187 /* MIDI hw config port 2 */ 188 inte_val = 0; 189 /* inte_val |= A_INTE_MIDITXENABLE2;*/ 190 inte_val |= INTE_A_MIDIRXENABLE2; 191 ipr_val = IPR_A_MIDITRANSBUFEMPTY2; 192 ipr_val |= IPR_A_MIDIRECVBUFEMPTY2; 193 } 194 } 195 if (inte_val == 0) 196 return (ENXIO); 197 198 scp->ihandle = emu_intr_register(scp->card, inte_val, ipr_val, &emu_midi_card_intr, scp); 199 /* Init the interface. */ 200 scp->mpu = mpu401_init(&emu_mpu_class, scp, emu_midi_intr, &scp->mpu_intr); 201 if (scp->mpu == NULL) { 202 emu_intr_unregister(scp->card, scp->ihandle); 203 mtx_destroy(&scp->mtx); 204 return (ENOMEM); 205 } 206 /* 207 * XXX I don't know how to check for Live!Drive / AudigyDrive 208 * presence. Let's hope that IR enabling code will not harm if 209 * it is not present. 210 */ 211 if (scp->is_emu10k1) 212 emu_enable_ir(scp->card); 213 else { 214 if (scp->port == A_MUDATA1) 215 emu_enable_ir(scp->card); 216 } 217 218 return (0); 219 } 220 221 222 static int 223 emu_midi_detach(device_t dev) 224 { 225 struct emu_midi_softc *scp; 226 227 scp = device_get_softc(dev); 228 mpu401_uninit(scp->mpu); 229 emu_intr_unregister(scp->card, scp->ihandle); 230 mtx_destroy(&scp->mtx); 231 return (0); 232 } 233 234 static device_method_t emu_midi_methods[] = { 235 DEVMETHOD(device_probe, emu_midi_probe), 236 DEVMETHOD(device_attach, emu_midi_attach), 237 DEVMETHOD(device_detach, emu_midi_detach), 238 239 {0, 0}, 240 }; 241 242 static driver_t emu_midi_driver = { 243 "midi", 244 emu_midi_methods, 245 sizeof(struct emu_midi_softc), 246 }; 247 DRIVER_MODULE(snd_emu10kx_midi, emu10kx, emu_midi_driver, emu_midi_devclass, 0, 0); 248 MODULE_DEPEND(snd_emu10kx_midi, snd_emu10kx, SND_EMU10KX_MINVER, SND_EMU10KX_PREFVER, SND_EMU10KX_MAXVER); 249 MODULE_DEPEND(snd_emu10kx_midi, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER); 250 MODULE_VERSION(snd_emu10kx_midi, SND_EMU10KX_PREFVER); 251