emu10kx-midi.c revision 331722
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: stable/11/sys/dev/sound/pci/emu10kx-midi.c 331722 2018-03-29 02:50:57Z eadler $ 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 56struct 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 68static uint32_t emu_midi_card_intr(void *p, uint32_t arg); 69static devclass_t emu_midi_devclass; 70 71static unsigned char 72emu_mread(struct mpu401 *arg __unused, void *cookie, int reg) 73{ 74 struct emu_midi_softc *sc = cookie; 75 unsigned int d; 76 77 d = 0; 78 if (sc->is_emu10k1) 79 d = emu_rd(sc->card, 0x18 + reg, 1); 80 else 81 d = emu_rdptr(sc->card, 0, sc->port + reg); 82 83 return (d); 84} 85 86static void 87emu_mwrite(struct mpu401 *arg __unused, void *cookie, int reg, unsigned char b) 88{ 89 struct emu_midi_softc *sc = cookie; 90 91 if (sc->is_emu10k1) 92 emu_wr(sc->card, 0x18 + reg, b, 1); 93 else 94 emu_wrptr(sc->card, 0, sc->port + reg, b); 95} 96 97static int 98emu_muninit(struct mpu401 *arg __unused, void *cookie) 99{ 100 struct emu_midi_softc *sc = cookie; 101 102 mtx_lock(&sc->mtx); 103 sc->mpu_intr = NULL; 104 mtx_unlock(&sc->mtx); 105 106 return (0); 107} 108 109static kobj_method_t emu_mpu_methods[] = { 110 KOBJMETHOD(mpufoi_read, emu_mread), 111 KOBJMETHOD(mpufoi_write, emu_mwrite), 112 KOBJMETHOD(mpufoi_uninit, emu_muninit), 113 KOBJMETHOD_END 114}; 115static DEFINE_CLASS(emu_mpu, emu_mpu_methods, 0); 116 117static uint32_t 118emu_midi_card_intr(void *p, uint32_t intr_status) 119{ 120 struct emu_midi_softc *sc = (struct emu_midi_softc *)p; 121 if (sc->mpu_intr) 122 (sc->mpu_intr) (sc->mpu); 123 if (sc->mpu_intr == NULL) { 124 /* We should read MIDI event to unlock card after 125 * interrupt. XXX - check, why this happens. */ 126 if (bootverbose) 127 device_printf(sc->dev, "midi interrupt %08x without interrupt handler, force mread!\n", intr_status); 128 (void)emu_mread((void *)(NULL), sc, 0); 129 } 130 return (intr_status); /* Acknowledge everything */ 131} 132 133static void 134emu_midi_intr(void *p) 135{ 136 (void)emu_midi_card_intr(p, 0); 137} 138 139static int 140emu_midi_probe(device_t dev) 141{ 142 struct emu_midi_softc *scp; 143 uintptr_t func, r, is_emu10k1; 144 145 r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func); 146 if (func != SCF_MIDI) 147 return (ENXIO); 148 149 scp = device_get_softc(dev); 150 bzero(scp, sizeof(*scp)); 151 r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_ISEMU10K1, &is_emu10k1); 152 scp->is_emu10k1 = is_emu10k1 ? 1 : 0; 153 154 device_set_desc(dev, "EMU10Kx MIDI Interface"); 155 return (0); 156} 157 158static int 159emu_midi_attach(device_t dev) 160{ 161 struct emu_midi_softc * scp; 162 struct sndcard_func *func; 163 struct emu_midiinfo *midiinfo; 164 uint32_t inte_val, ipr_val; 165 166 scp = device_get_softc(dev); 167 func = device_get_ivars(dev); 168 169 scp->dev = dev; 170 midiinfo = (struct emu_midiinfo *)func->varinfo; 171 scp->port = midiinfo->port; 172 scp->card = midiinfo->card; 173 174 mtx_init(&scp->mtx, device_get_nameunit(dev), "midi softc", MTX_DEF); 175 176 if (scp->is_emu10k1) { 177 /* SB Live! - only one MIDI device here */ 178 inte_val = 0; 179 /* inte_val |= EMU_INTE_MIDITXENABLE;*/ 180 inte_val |= EMU_INTE_MIDIRXENABLE; 181 ipr_val = EMU_IPR_MIDITRANSBUFE; 182 ipr_val |= EMU_IPR_MIDIRECVBUFE; 183 } else { 184 if (scp->port == EMU_A_MUDATA1) { 185 /* EXTERNAL MIDI (AudigyDrive) */ 186 inte_val = 0; 187 /* inte_val |= A_EMU_INTE_MIDITXENABLE1;*/ 188 inte_val |= EMU_INTE_MIDIRXENABLE; 189 ipr_val = EMU_IPR_MIDITRANSBUFE; 190 ipr_val |= EMU_IPR_MIDIRECVBUFE; 191 } else { 192 /* MIDI hw config port 2 */ 193 inte_val = 0; 194 /* inte_val |= A_EMU_INTE_MIDITXENABLE2;*/ 195 inte_val |= EMU_INTE_A_MIDIRXENABLE2; 196 ipr_val = EMU_IPR_A_MIDITRANSBUFE2; 197 ipr_val |= EMU_IPR_A_MIDIRECBUFE2; 198 } 199 } 200 201 scp->ihandle = emu_intr_register(scp->card, inte_val, ipr_val, &emu_midi_card_intr, scp); 202 /* Init the interface. */ 203 scp->mpu = mpu401_init(&emu_mpu_class, scp, emu_midi_intr, &scp->mpu_intr); 204 if (scp->mpu == NULL) { 205 emu_intr_unregister(scp->card, scp->ihandle); 206 mtx_destroy(&scp->mtx); 207 return (ENOMEM); 208 } 209 /* 210 * XXX I don't know how to check for Live!Drive / AudigyDrive 211 * presence. Let's hope that IR enabling code will not harm if 212 * it is not present. 213 */ 214 if (scp->is_emu10k1) 215 emu_enable_ir(scp->card); 216 else { 217 if (scp->port == EMU_A_MUDATA1) 218 emu_enable_ir(scp->card); 219 } 220 221 return (0); 222} 223 224 225static int 226emu_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 237static 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 245static driver_t emu_midi_driver = { 246 "midi", 247 emu_midi_methods, 248 sizeof(struct emu_midi_softc), 249}; 250DRIVER_MODULE(snd_emu10kx_midi, emu10kx, emu_midi_driver, emu_midi_devclass, 0, 0); 251MODULE_DEPEND(snd_emu10kx_midi, snd_emu10kx, SND_EMU10KX_MINVER, SND_EMU10KX_PREFVER, SND_EMU10KX_MAXVER); 252MODULE_DEPEND(snd_emu10kx_midi, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER); 253MODULE_VERSION(snd_emu10kx_midi, SND_EMU10KX_PREFVER); 254