emu10kx-midi.c revision 192460
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 192460 2009-05-20 18:38:43Z joel $ 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 <dev/sound/pci/emu10kx.h> 50#include "emu10k1-alsa%diked.h" 51 52struct emu_midi_softc { 53 struct mtx mtx; 54 device_t dev; 55 struct mpu401 *mpu; 56 mpu401_intr_t *mpu_intr; 57 struct emu_sc_info *card; 58 int port; /* I/O port or I/O ptr reg */ 59 int is_emu10k1; 60 int fflags; /* File flags */ 61 int ihandle; /* interrupt manager handle */ 62}; 63 64static uint32_t emu_midi_card_intr(void *p, uint32_t arg); 65static devclass_t emu_midi_devclass; 66 67static unsigned char 68emu_mread(void *arg __unused, struct emu_midi_softc *sc, int reg) 69{ 70 unsigned int d; 71 72 d = 0; 73 if (sc->is_emu10k1) 74 d = emu_rd(sc->card, 0x18 + reg, 1); 75 else 76 d = emu_rdptr(sc->card, 0, sc->port + reg); 77 78 return (d); 79} 80 81static void 82emu_mwrite(void *arg __unused, struct emu_midi_softc *sc, int reg, unsigned char b) 83{ 84 85 if (sc->is_emu10k1) 86 emu_wr(sc->card, 0x18 + reg, b, 1); 87 else 88 emu_wrptr(sc->card, 0, sc->port + reg, b); 89} 90 91static int 92emu_muninit(void *arg __unused, struct emu_midi_softc *sc) 93{ 94 95 mtx_lock(&sc->mtx); 96 sc->mpu_intr = NULL; 97 mtx_unlock(&sc->mtx); 98 99 return (0); 100} 101 102static kobj_method_t emu_mpu_methods[] = { 103 KOBJMETHOD(mpufoi_read, emu_mread), 104 KOBJMETHOD(mpufoi_write, emu_mwrite), 105 KOBJMETHOD(mpufoi_uninit, emu_muninit), 106 {0, 0} 107}; 108static DEFINE_CLASS(emu_mpu, emu_mpu_methods, 0); 109 110static uint32_t 111emu_midi_card_intr(void *p, uint32_t intr_status) 112{ 113 struct emu_midi_softc *sc = (struct emu_midi_softc *)p; 114 if (sc->mpu_intr) 115 (sc->mpu_intr) (sc->mpu); 116 if (sc->mpu_intr == NULL) { 117 /* We should read MIDI event to unlock card after 118 * interrupt. XXX - check, why this happens. */ 119 if (bootverbose) 120 device_printf(sc->dev, "midi interrupt %08x without interrupt handler, force mread!\n", intr_status); 121 (void)emu_mread((void *)(NULL), sc, 0); 122 } 123 return (intr_status); /* Acknowledge everything */ 124} 125 126static void 127emu_midi_intr(void *p) 128{ 129 (void)emu_midi_card_intr(p, 0); 130} 131 132static int 133emu_midi_probe(device_t dev) 134{ 135 struct emu_midi_softc *scp; 136 uintptr_t func, r, is_emu10k1; 137 138 r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func); 139 if (func != SCF_MIDI) 140 return (ENXIO); 141 142 scp = device_get_softc(dev); 143 bzero(scp, sizeof(*scp)); 144 r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_ISEMU10K1, &is_emu10k1); 145 scp->is_emu10k1 = is_emu10k1 ? 1 : 0; 146 147 device_set_desc(dev, "EMU10Kx MIDI Interface"); 148 return (0); 149} 150 151static int 152emu_midi_attach(device_t dev) 153{ 154 struct emu_midi_softc * scp; 155 struct sndcard_func *func; 156 struct emu_midiinfo *midiinfo; 157 uint32_t inte_val, ipr_val; 158 159 scp = device_get_softc(dev); 160 func = device_get_ivars(dev); 161 162 scp->dev = dev; 163 midiinfo = (struct emu_midiinfo *)func->varinfo; 164 scp->port = midiinfo->port; 165 scp->card = midiinfo->card; 166 167 mtx_init(&scp->mtx, device_get_nameunit(dev), "midi softc", MTX_DEF); 168 169 if (scp->is_emu10k1) { 170 /* SB Live! - only one MIDI device here */ 171 inte_val = 0; 172 /* inte_val |= INTE_MIDITXENABLE;*/ 173 inte_val |= INTE_MIDIRXENABLE; 174 ipr_val = IPR_MIDITRANSBUFEMPTY; 175 ipr_val |= IPR_MIDIRECVBUFEMPTY; 176 } else { 177 if (scp->port == A_MUDATA1) { 178 /* EXTERNAL MIDI (AudigyDrive) */ 179 inte_val = 0; 180 /* inte_val |= A_INTE_MIDITXENABLE1;*/ 181 inte_val |= INTE_MIDIRXENABLE; 182 ipr_val = IPR_MIDITRANSBUFEMPTY; 183 ipr_val |= IPR_MIDIRECVBUFEMPTY; 184 } else { 185 /* MIDI hw config port 2 */ 186 inte_val = 0; 187 /* inte_val |= A_INTE_MIDITXENABLE2;*/ 188 inte_val |= INTE_A_MIDIRXENABLE2; 189 ipr_val = IPR_A_MIDITRANSBUFEMPTY2; 190 ipr_val |= IPR_A_MIDIRECVBUFEMPTY2; 191 } 192 } 193 194 scp->ihandle = emu_intr_register(scp->card, inte_val, ipr_val, &emu_midi_card_intr, scp); 195 /* Init the interface. */ 196 scp->mpu = mpu401_init(&emu_mpu_class, scp, emu_midi_intr, &scp->mpu_intr); 197 if (scp->mpu == NULL) { 198 emu_intr_unregister(scp->card, scp->ihandle); 199 mtx_destroy(&scp->mtx); 200 return (ENOMEM); 201 } 202 /* 203 * XXX I don't know how to check for Live!Drive / AudigyDrive 204 * presence. Let's hope that IR enabling code will not harm if 205 * it is not present. 206 */ 207 if (scp->is_emu10k1) 208 emu_enable_ir(scp->card); 209 else { 210 if (scp->port == A_MUDATA1) 211 emu_enable_ir(scp->card); 212 } 213 214 return (0); 215} 216 217 218static int 219emu_midi_detach(device_t dev) 220{ 221 struct emu_midi_softc *scp; 222 223 scp = device_get_softc(dev); 224 mpu401_uninit(scp->mpu); 225 emu_intr_unregister(scp->card, scp->ihandle); 226 mtx_destroy(&scp->mtx); 227 return (0); 228} 229 230static device_method_t emu_midi_methods[] = { 231 DEVMETHOD(device_probe, emu_midi_probe), 232 DEVMETHOD(device_attach, emu_midi_attach), 233 DEVMETHOD(device_detach, emu_midi_detach), 234 235 {0, 0}, 236}; 237 238static driver_t emu_midi_driver = { 239 "midi", 240 emu_midi_methods, 241 sizeof(struct emu_midi_softc), 242}; 243DRIVER_MODULE(snd_emu10kx_midi, emu10kx, emu_midi_driver, emu_midi_devclass, 0, 0); 244MODULE_DEPEND(snd_emu10kx_midi, snd_emu10kx, SND_EMU10KX_MINVER, SND_EMU10KX_PREFVER, SND_EMU10KX_MAXVER); 245MODULE_DEPEND(snd_emu10kx_midi, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER); 246MODULE_VERSION(snd_emu10kx_midi, SND_EMU10KX_PREFVER); 247