Changeset 34 for GPL/trunk/alsa-kernel/drivers/opl3
- Timestamp:
- Dec 11, 2005, 5:57:39 PM (20 years ago)
- Location:
- GPL/trunk/alsa-kernel/drivers/opl3
- Files:
-
- 3 edited
-
opl3_lib.c (modified) (6 diffs)
-
opl3_midi.c (modified) (15 diffs)
-
opl3_seq.c (modified) (4 diffs)
Legend:
- Unmodified
- Added
- Removed
-
GPL/trunk/alsa-kernel/drivers/opl3/opl3_lib.c
r33 r34 3 3 * Hannu Savolainen 1993-1996, 4 4 * Rob Hooft 5 * 5 * 6 6 * Routines for control of AdLib FM cards (OPL2/OPL3/OPL4 chips) 7 7 * … … 24 24 */ 25 25 26 #define SNDRV_MAIN_OBJECT_FILE27 26 #include <sound/opl3.h> 27 #include <asm/io.h> 28 #include <linux/delay.h> 29 #include <linux/init.h> 30 #include <linux/slab.h> 31 #include <linux/ioport.h> 28 32 #include <sound/minors.h> 29 33 … … 34 38 extern char snd_opl3_regmap[MAX_OPL2_VOICES][4]; 35 39 36 void snd_opl2_command(opl3_t * opl3, unsigned short cmd, unsigned char val) 37 { 38 unsigned long flags; 39 unsigned long port; 40 41 /* 42 * The original 2-OP synth requires a quite long delay 43 * after writing to a register. 44 */ 45 46 port = (cmd & OPL3_RIGHT) ? opl3->r_port : opl3->l_port; 47 48 spin_lock_irqsave(&opl3->reg_lock, flags); 49 50 outb((unsigned char) cmd, port); 51 udelay(10); 52 53 outb((unsigned char) val, port + 1); 54 udelay(30); 55 56 spin_unlock_irqrestore(&opl3->reg_lock, flags); 57 } 58 59 void snd_opl3_command(opl3_t * opl3, unsigned short cmd, unsigned char val) 60 { 61 unsigned long flags; 62 unsigned long port; 63 64 /* 65 * The OPL-3 survives with just two INBs 66 * after writing to a register. 67 */ 68 69 port = (cmd & OPL3_RIGHT) ? opl3->r_port : opl3->l_port; 70 71 spin_lock_irqsave(&opl3->reg_lock, flags); 72 73 outb((unsigned char) cmd, port); 74 inb(opl3->l_port); 75 inb(opl3->l_port); 76 77 outb((unsigned char) val, port + 1); 78 inb(opl3->l_port); 79 inb(opl3->l_port); 80 81 spin_unlock_irqrestore(&opl3->reg_lock, flags); 82 } 83 84 85 static int snd_opl3_detect(opl3_t * opl3) 86 { 87 /* 88 * This function returns 1 if the FM chip is present at the given I/O port 89 * The detection algorithm plays with the timer built in the FM chip and 90 * looks for a change in the status register. 91 * 92 * Note! The timers of the FM chip are not connected to AdLib (and compatible) 93 * boards. 94 * 95 * Note2! The chip is initialized if detected. 96 */ 97 98 unsigned char stat1, stat2, signature; 99 100 /* Reset timers 1 and 2 */ 101 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER1_MASK | OPL3_TIMER2_MASK); 102 /* Reset the IRQ of the FM chip */ 103 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_IRQ_RESET); 104 signature = stat1 = inb(opl3->l_port); /* Status register */ 105 if ((stat1 & 0xe0) != 0x00) { /* Should be 0x00 */ 106 snd_printd("OPL3: stat1 = 0x%x\n", stat1); 107 return -ENODEV; 108 } 109 /* Set timer1 to 0xff */ 110 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER1, 0xff); 111 /* Unmask and start timer 1 */ 112 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER2_MASK | OPL3_TIMER1_START); 113 /* Now we have to delay at least 80us */ 114 udelay(200); 115 /* Read status after timers have expired */ 116 stat2 = inb(opl3->l_port); 117 /* Stop the timers */ 118 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER1_MASK | OPL3_TIMER2_MASK); 119 /* Reset the IRQ of the FM chip */ 120 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_IRQ_RESET); 121 if ((stat2 & 0xe0) != 0xc0) { /* There is no YM3812 */ 122 snd_printd("OPL3: stat2 = 0x%x\n", stat2); 123 return -ENODEV; 124 } 125 126 /* If the toplevel code knows exactly the type of chip, don't try 127 to detect it. */ 128 if (opl3->hardware != OPL3_HW_AUTO) 129 return 0; 130 131 /* There is a FM chip on this address. Detect the type (OPL2 to OPL4) */ 132 if (signature == 0x06) { /* OPL2 */ 133 opl3->hardware = OPL3_HW_OPL2; 134 } else { 135 /* 136 * If we had an OPL4 chip, opl3->hardware would have been set 137 * by the OPL4 driver; so we can assume OPL3 here. 138 */ 139 snd_assert(opl3->r_port != 0, return -ENODEV); 140 opl3->hardware = OPL3_HW_OPL3; 141 } 142 return 0; 40 static void snd_opl2_command(struct snd_opl3 * opl3, unsigned short cmd, unsigned char val) 41 { 42 unsigned long flags; 43 unsigned long port; 44 45 /* 46 * The original 2-OP synth requires a quite long delay 47 * after writing to a register. 48 */ 49 50 port = (cmd & OPL3_RIGHT) ? opl3->r_port : opl3->l_port; 51 52 spin_lock_irqsave(&opl3->reg_lock, flags); 53 54 outb((unsigned char) cmd, port); 55 udelay(10); 56 57 outb((unsigned char) val, port + 1); 58 udelay(30); 59 60 spin_unlock_irqrestore(&opl3->reg_lock, flags); 61 } 62 63 static void snd_opl3_command(struct snd_opl3 * opl3, unsigned short cmd, unsigned char val) 64 { 65 unsigned long flags; 66 unsigned long port; 67 68 /* 69 * The OPL-3 survives with just two INBs 70 * after writing to a register. 71 */ 72 73 port = (cmd & OPL3_RIGHT) ? opl3->r_port : opl3->l_port; 74 75 spin_lock_irqsave(&opl3->reg_lock, flags); 76 77 outb((unsigned char) cmd, port); 78 inb(opl3->l_port); 79 inb(opl3->l_port); 80 81 outb((unsigned char) val, port + 1); 82 inb(opl3->l_port); 83 inb(opl3->l_port); 84 85 spin_unlock_irqrestore(&opl3->reg_lock, flags); 86 } 87 88 static int snd_opl3_detect(struct snd_opl3 * opl3) 89 { 90 /* 91 * This function returns 1 if the FM chip is present at the given I/O port 92 * The detection algorithm plays with the timer built in the FM chip and 93 * looks for a change in the status register. 94 * 95 * Note! The timers of the FM chip are not connected to AdLib (and compatible) 96 * boards. 97 * 98 * Note2! The chip is initialized if detected. 99 */ 100 101 unsigned char stat1, stat2, signature; 102 103 /* Reset timers 1 and 2 */ 104 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER1_MASK | OPL3_TIMER2_MASK); 105 /* Reset the IRQ of the FM chip */ 106 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_IRQ_RESET); 107 signature = stat1 = inb(opl3->l_port); /* Status register */ 108 if ((stat1 & 0xe0) != 0x00) { /* Should be 0x00 */ 109 snd_printd("OPL3: stat1 = 0x%x\n", stat1); 110 return -ENODEV; 111 } 112 /* Set timer1 to 0xff */ 113 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER1, 0xff); 114 /* Unmask and start timer 1 */ 115 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER2_MASK | OPL3_TIMER1_START); 116 /* Now we have to delay at least 80us */ 117 udelay(200); 118 /* Read status after timers have expired */ 119 stat2 = inb(opl3->l_port); 120 /* Stop the timers */ 121 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER1_MASK | OPL3_TIMER2_MASK); 122 /* Reset the IRQ of the FM chip */ 123 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_IRQ_RESET); 124 if ((stat2 & 0xe0) != 0xc0) { /* There is no YM3812 */ 125 snd_printd("OPL3: stat2 = 0x%x\n", stat2); 126 return -ENODEV; 127 } 128 129 /* If the toplevel code knows exactly the type of chip, don't try 130 to detect it. */ 131 if (opl3->hardware != OPL3_HW_AUTO) 132 return 0; 133 134 /* There is a FM chip on this address. Detect the type (OPL2 to OPL4) */ 135 if (signature == 0x06) { /* OPL2 */ 136 opl3->hardware = OPL3_HW_OPL2; 137 } else { 138 /* 139 * If we had an OPL4 chip, opl3->hardware would have been set 140 * by the OPL4 driver; so we can assume OPL3 here. 141 */ 142 snd_assert(opl3->r_port != 0, return -ENODEV); 143 opl3->hardware = OPL3_HW_OPL3; 144 } 145 return 0; 143 146 } 144 147 … … 151 154 */ 152 155 153 static int snd_opl3_timer1_start(s nd_timer_t* timer)154 { 155 unsigned long flags;156 unsigned char tmp;157 unsigned int ticks;158 opl3_t*opl3;159 160 opl3 = snd_timer_chip(timer);161 spin_lock_irqsave(&opl3->timer_lock, flags);162 ticks = timer->sticks;163 tmp = (opl3->timer_enable | OPL3_TIMER1_START) & ~OPL3_TIMER1_MASK;164 opl3->timer_enable = tmp;165 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER1, 256 - ticks); /* timer 1 count */166 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* enable timer 1 IRQ */167 spin_unlock_irqrestore(&opl3->timer_lock, flags);168 return 0;169 } 170 171 static int snd_opl3_timer1_stop(s nd_timer_t* timer)172 { 173 unsigned long flags;174 unsigned char tmp;175 opl3_t*opl3;176 177 opl3 = snd_timer_chip(timer);178 spin_lock_irqsave(&opl3->timer_lock, flags);179 tmp = (opl3->timer_enable | OPL3_TIMER1_MASK) & ~OPL3_TIMER1_START;180 opl3->timer_enable = tmp;181 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* disable timer #1 */182 spin_unlock_irqrestore(&opl3->timer_lock, flags);183 return 0;156 static int snd_opl3_timer1_start(struct snd_timer * timer) 157 { 158 unsigned long flags; 159 unsigned char tmp; 160 unsigned int ticks; 161 struct snd_opl3 *opl3; 162 163 opl3 = snd_timer_chip(timer); 164 spin_lock_irqsave(&opl3->timer_lock, flags); 165 ticks = timer->sticks; 166 tmp = (opl3->timer_enable | OPL3_TIMER1_START) & ~OPL3_TIMER1_MASK; 167 opl3->timer_enable = tmp; 168 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER1, 256 - ticks); /* timer 1 count */ 169 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* enable timer 1 IRQ */ 170 spin_unlock_irqrestore(&opl3->timer_lock, flags); 171 return 0; 172 } 173 174 static int snd_opl3_timer1_stop(struct snd_timer * timer) 175 { 176 unsigned long flags; 177 unsigned char tmp; 178 struct snd_opl3 *opl3; 179 180 opl3 = snd_timer_chip(timer); 181 spin_lock_irqsave(&opl3->timer_lock, flags); 182 tmp = (opl3->timer_enable | OPL3_TIMER1_MASK) & ~OPL3_TIMER1_START; 183 opl3->timer_enable = tmp; 184 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* disable timer #1 */ 185 spin_unlock_irqrestore(&opl3->timer_lock, flags); 186 return 0; 184 187 } 185 188 … … 188 191 */ 189 192 190 static int snd_opl3_timer2_start(snd_timer_t * timer) 191 { 192 unsigned long flags; 193 unsigned char tmp; 194 unsigned int ticks; 195 opl3_t *opl3; 196 197 opl3 = snd_timer_chip(timer); 198 spin_lock_irqsave(&opl3->timer_lock, flags); 199 ticks = timer->sticks; 200 tmp = (opl3->timer_enable | OPL3_TIMER2_START) & ~OPL3_TIMER2_MASK; 201 opl3->timer_enable = tmp; 202 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER2, 256 - ticks); /* timer 1 count */ 203 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* enable timer 1 IRQ */ 204 spin_unlock_irqrestore(&opl3->timer_lock, flags); 205 return 0; 206 } 207 208 static int snd_opl3_timer2_stop(snd_timer_t * timer) 209 { 210 unsigned long flags; 211 unsigned char tmp; 212 opl3_t *opl3; 213 214 opl3 = snd_timer_chip(timer); 215 spin_lock_irqsave(&opl3->timer_lock, flags); 216 tmp = (opl3->timer_enable | OPL3_TIMER2_MASK) & ~OPL3_TIMER2_START; 217 opl3->timer_enable = tmp; 218 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* disable timer #1 */ 219 spin_unlock_irqrestore(&opl3->timer_lock, flags); 220 return 0; 221 } 222 223 /* 224 225 */ 226 227 static struct _snd_timer_hardware snd_opl3_timer1 = 228 { 229 SNDRV_TIMER_HW_STOP, 230 80000, 231 256, 232 0,0,0, 233 snd_opl3_timer1_start, 234 snd_opl3_timer1_stop, 193 static int snd_opl3_timer2_start(struct snd_timer * timer) 194 { 195 unsigned long flags; 196 unsigned char tmp; 197 unsigned int ticks; 198 struct snd_opl3 *opl3; 199 200 opl3 = snd_timer_chip(timer); 201 spin_lock_irqsave(&opl3->timer_lock, flags); 202 ticks = timer->sticks; 203 tmp = (opl3->timer_enable | OPL3_TIMER2_START) & ~OPL3_TIMER2_MASK; 204 opl3->timer_enable = tmp; 205 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER2, 256 - ticks); /* timer 1 count */ 206 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* enable timer 1 IRQ */ 207 spin_unlock_irqrestore(&opl3->timer_lock, flags); 208 return 0; 209 } 210 211 static int snd_opl3_timer2_stop(struct snd_timer * timer) 212 { 213 unsigned long flags; 214 unsigned char tmp; 215 struct snd_opl3 *opl3; 216 217 opl3 = snd_timer_chip(timer); 218 spin_lock_irqsave(&opl3->timer_lock, flags); 219 tmp = (opl3->timer_enable | OPL3_TIMER2_MASK) & ~OPL3_TIMER2_START; 220 opl3->timer_enable = tmp; 221 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* disable timer #1 */ 222 spin_unlock_irqrestore(&opl3->timer_lock, flags); 223 return 0; 224 } 225 226 /* 227 228 */ 229 230 static struct snd_timer_hardware snd_opl3_timer1 = 231 { 232 .flags = SNDRV_TIMER_HW_STOP, 233 .resolution = 80000, 234 .ticks = 256, 235 .start = snd_opl3_timer1_start, 236 .stop = snd_opl3_timer1_stop, 235 237 }; 236 238 237 static struct _snd_timer_hardware snd_opl3_timer2 = 238 { 239 SNDRV_TIMER_HW_STOP, 240 320000, 241 256, 242 0,0,0, 243 snd_opl3_timer2_start, 244 snd_opl3_timer2_stop, 239 static struct snd_timer_hardware snd_opl3_timer2 = 240 { 241 .flags = SNDRV_TIMER_HW_STOP, 242 .resolution = 320000, 243 .ticks = 256, 244 .start = snd_opl3_timer2_start, 245 .stop = snd_opl3_timer2_stop, 245 246 }; 246 247 247 static int snd_opl3_timer1_init( opl3_t* opl3, int timer_no)248 { 249 snd_timer_t*timer = NULL;250 snd_timer_id_ttid;251 int err;252 253 tid.dev_class = SNDRV_TIMER_CLASS_CARD;254 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;255 tid.card = opl3->card->number;256 tid.device = timer_no;257 tid.subdevice = 0;258 if ((err = snd_timer_new(opl3->card, "AdLib timer #1", &tid, &timer)) >= 0) {259 strcpy(timer->name, "AdLib timer #1");260 timer->private_data = opl3;261 timer->hw = snd_opl3_timer1;262 }263 opl3->timer1 = timer;264 return err;265 } 266 267 static int snd_opl3_timer2_init( opl3_t* opl3, int timer_no)268 { 269 snd_timer_t*timer = NULL;270 snd_timer_id_ttid;271 int err;272 273 tid.dev_class = SNDRV_TIMER_CLASS_CARD;274 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;275 tid.card = opl3->card->number;276 tid.device = timer_no;277 tid.subdevice = 0;278 if ((err = snd_timer_new(opl3->card, "AdLib timer #2", &tid, &timer)) >= 0) {279 strcpy(timer->name, "AdLib timer #2");280 timer->private_data = opl3;281 timer->hw = snd_opl3_timer2;282 }283 opl3->timer2 = timer;284 return err;285 } 286 287 /* 288 289 */290 291 void snd_opl3_interrupt(s nd_hwdep_t* hw)292 { 293 unsigned char status;294 opl3_t*opl3;295 snd_timer_t*timer;296 297 if (hw == NULL)298 return;299 300 opl3 = hw->private_data;301 status = inb(opl3->l_port);248 static int snd_opl3_timer1_init(struct snd_opl3 * opl3, int timer_no) 249 { 250 struct snd_timer *timer = NULL; 251 struct snd_timer_id tid; 252 int err; 253 254 tid.dev_class = SNDRV_TIMER_CLASS_CARD; 255 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; 256 tid.card = opl3->card->number; 257 tid.device = timer_no; 258 tid.subdevice = 0; 259 if ((err = snd_timer_new(opl3->card, "AdLib timer #1", &tid, &timer)) >= 0) { 260 strcpy(timer->name, "AdLib timer #1"); 261 timer->private_data = opl3; 262 timer->hw = snd_opl3_timer1; 263 } 264 opl3->timer1 = timer; 265 return err; 266 } 267 268 static int snd_opl3_timer2_init(struct snd_opl3 * opl3, int timer_no) 269 { 270 struct snd_timer *timer = NULL; 271 struct snd_timer_id tid; 272 int err; 273 274 tid.dev_class = SNDRV_TIMER_CLASS_CARD; 275 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; 276 tid.card = opl3->card->number; 277 tid.device = timer_no; 278 tid.subdevice = 0; 279 if ((err = snd_timer_new(opl3->card, "AdLib timer #2", &tid, &timer)) >= 0) { 280 strcpy(timer->name, "AdLib timer #2"); 281 timer->private_data = opl3; 282 timer->hw = snd_opl3_timer2; 283 } 284 opl3->timer2 = timer; 285 return err; 286 } 287 288 /* 289 290 */ 291 292 void snd_opl3_interrupt(struct snd_hwdep * hw) 293 { 294 unsigned char status; 295 struct snd_opl3 *opl3; 296 struct snd_timer *timer; 297 298 if (hw == NULL) 299 return; 300 301 opl3 = hw->private_data; 302 status = inb(opl3->l_port); 302 303 #if 0 303 snd_printk("AdLib IRQ status = 0x%x\n", status);304 snd_printk("AdLib IRQ status = 0x%x\n", status); 304 305 #endif 305 if (!(status & 0x80)) 306 return; 307 308 if (status & 0x40) { 309 timer = opl3->timer1; 310 snd_timer_interrupt(timer, timer->sticks); 311 } 312 if (status & 0x20) { 313 timer = opl3->timer2; 314 snd_timer_interrupt(timer, timer->sticks); 315 } 316 } 317 318 /* 319 320 */ 321 322 static int snd_opl3_free(opl3_t *opl3) 323 { 324 snd_assert(opl3 != NULL, return -ENXIO); 325 if (opl3->private_free) 326 opl3->private_free(opl3); 327 if (opl3->res_l_port) { 328 release_resource(opl3->res_l_port); 329 kfree_nocheck(opl3->res_l_port); 330 } 331 if (opl3->res_r_port) { 332 release_resource(opl3->res_r_port); 333 kfree_nocheck(opl3->res_r_port); 334 } 335 kfree(opl3); 336 return 0; 337 } 338 339 static int snd_opl3_dev_free(snd_device_t *device) 340 { 341 opl3_t *opl3 = device->device_data; 342 return snd_opl3_free(opl3); 343 } 344 345 int snd_opl3_new(snd_card_t *card, 346 unsigned short hardware, 347 opl3_t ** ropl3) 348 { 349 #ifdef TARGET_OS2 350 static snd_device_ops_t ops = { 351 snd_opl3_dev_free,0,0,0 352 }; 353 #else 354 static snd_device_ops_t ops = { 355 dev_free: snd_opl3_dev_free, 356 }; 306 if (!(status & 0x80)) 307 return; 308 309 if (status & 0x40) { 310 timer = opl3->timer1; 311 snd_timer_interrupt(timer, timer->sticks); 312 } 313 if (status & 0x20) { 314 timer = opl3->timer2; 315 snd_timer_interrupt(timer, timer->sticks); 316 } 317 } 318 319 /* 320 321 */ 322 323 static int snd_opl3_free(struct snd_opl3 *opl3) 324 { 325 snd_assert(opl3 != NULL, return -ENXIO); 326 if (opl3->private_free) 327 opl3->private_free(opl3); 328 release_and_free_resource(opl3->res_l_port); 329 release_and_free_resource(opl3->res_r_port); 330 kfree(opl3); 331 return 0; 332 } 333 334 static int snd_opl3_dev_free(struct snd_device *device) 335 { 336 struct snd_opl3 *opl3 = device->device_data; 337 return snd_opl3_free(opl3); 338 } 339 340 int snd_opl3_new(struct snd_card *card, 341 unsigned short hardware, 342 struct snd_opl3 **ropl3) 343 { 344 static struct snd_device_ops ops = { 345 .dev_free = snd_opl3_dev_free, 346 }; 347 struct snd_opl3 *opl3; 348 int err; 349 350 *ropl3 = NULL; 351 opl3 = (struct snd_opl3 *)kzalloc(sizeof(*opl3), GFP_KERNEL); 352 if (opl3 == NULL) { 353 snd_printk(KERN_ERR "opl3: cannot allocate\n"); 354 return -ENOMEM; 355 } 356 357 opl3->card = card; 358 opl3->hardware = hardware; 359 spin_lock_init(&opl3->reg_lock); 360 spin_lock_init(&opl3->timer_lock); 361 init_MUTEX(&opl3->access_mutex); 362 363 if ((err = snd_device_new(card, SNDRV_DEV_CODEC, opl3, &ops)) < 0) { 364 snd_opl3_free(opl3); 365 return err; 366 } 367 368 *ropl3 = opl3; 369 return 0; 370 } 371 372 int snd_opl3_init(struct snd_opl3 *opl3) 373 { 374 if (! opl3->command) { 375 printk(KERN_ERR "snd_opl3_init: command not defined!\n"); 376 return -EINVAL; 377 } 378 379 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TEST, OPL3_ENABLE_WAVE_SELECT); 380 /* Melodic mode */ 381 opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, 0x00); 382 383 switch (opl3->hardware & OPL3_HW_MASK) { 384 case OPL3_HW_OPL2: 385 opl3->max_voices = MAX_OPL2_VOICES; 386 break; 387 case OPL3_HW_OPL3: 388 case OPL3_HW_OPL4: 389 opl3->max_voices = MAX_OPL3_VOICES; 390 /* Enter OPL3 mode */ 391 opl3->command(opl3, OPL3_RIGHT | OPL3_REG_MODE, OPL3_OPL3_ENABLE); 392 } 393 return 0; 394 } 395 396 int snd_opl3_create(struct snd_card *card, 397 unsigned long l_port, 398 unsigned long r_port, 399 unsigned short hardware, 400 int integrated, 401 struct snd_opl3 ** ropl3) 402 { 403 struct snd_opl3 *opl3; 404 int err; 405 406 *ropl3 = NULL; 407 if ((err = snd_opl3_new(card, hardware, &opl3)) < 0) 408 return err; 409 if (! integrated) { 410 if ((opl3->res_l_port = request_region(l_port, 2, "OPL2/3 (left)")) == NULL) { 411 snd_printk(KERN_ERR "opl3: can't grab left port 0x%lx\n", l_port); 412 snd_opl3_free(opl3); 413 return -EBUSY; 414 } 415 if (r_port != 0 && 416 (opl3->res_r_port = request_region(r_port, 2, "OPL2/3 (right)")) == NULL) { 417 snd_printk(KERN_ERR "opl3: can't grab right port 0x%lx\n", r_port); 418 snd_opl3_free(opl3); 419 return -EBUSY; 420 } 421 } 422 opl3->l_port = l_port; 423 opl3->r_port = r_port; 424 425 switch (opl3->hardware) { 426 /* some hardware doesn't support timers */ 427 case OPL3_HW_OPL3_SV: 428 case OPL3_HW_OPL3_CS: 429 case OPL3_HW_OPL3_FM801: 430 opl3->command = &snd_opl3_command; 431 break; 432 default: 433 opl3->command = &snd_opl2_command; 434 if ((err = snd_opl3_detect(opl3)) < 0) { 435 snd_printd("OPL2/3 chip not detected at 0x%lx/0x%lx\n", 436 opl3->l_port, opl3->r_port); 437 snd_opl3_free(opl3); 438 return err; 439 } 440 /* detect routine returns correct hardware type */ 441 switch (opl3->hardware & OPL3_HW_MASK) { 442 case OPL3_HW_OPL3: 443 case OPL3_HW_OPL4: 444 opl3->command = &snd_opl3_command; 445 } 446 } 447 448 snd_opl3_init(opl3); 449 450 *ropl3 = opl3; 451 return 0; 452 } 453 454 int snd_opl3_timer_new(struct snd_opl3 * opl3, int timer1_dev, int timer2_dev) 455 { 456 int err; 457 458 if (timer1_dev >= 0) 459 if ((err = snd_opl3_timer1_init(opl3, timer1_dev)) < 0) 460 return err; 461 if (timer2_dev >= 0) { 462 if ((err = snd_opl3_timer2_init(opl3, timer2_dev)) < 0) { 463 snd_device_free(opl3->card, opl3->timer1); 464 opl3->timer1 = NULL; 465 return err; 466 } 467 } 468 return 0; 469 } 470 471 int snd_opl3_hwdep_new(struct snd_opl3 * opl3, 472 int device, int seq_device, 473 struct snd_hwdep ** rhwdep) 474 { 475 struct snd_hwdep *hw; 476 struct snd_card *card = opl3->card; 477 int err; 478 479 if (rhwdep) 480 *rhwdep = NULL; 481 482 /* create hardware dependent device (direct FM) */ 483 484 if ((err = snd_hwdep_new(card, "OPL2/OPL3", device, &hw)) < 0) { 485 snd_device_free(card, opl3); 486 return err; 487 } 488 hw->private_data = opl3; 489 #ifdef CONFIG_SND_OSSEMUL 490 if (device == 0) { 491 hw->oss_type = SNDRV_OSS_DEVICE_TYPE_DMFM; 492 sprintf(hw->oss_dev, "dmfm%i", card->number); 493 } 357 494 #endif 358 opl3_t *opl3; 359 int err; 360 *ropl3 = NULL; 361 opl3 = kcalloc(1, sizeof(*opl3), GFP_KERNEL); 362 if (opl3 == NULL) 363 return -ENOMEM; 364 365 opl3->card = card; 366 opl3->hardware = hardware; 367 spin_lock_init(&opl3->reg_lock); 368 spin_lock_init(&opl3->timer_lock); 369 init_MUTEX(&opl3->access_mutex); 370 371 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, opl3, &ops)) < 0) { 372 snd_opl3_free(opl3); 373 return err; 374 } 375 376 *ropl3 = opl3; 377 return 0; 378 } 379 380 int snd_opl3_init(opl3_t *opl3) 381 { 382 if (! opl3->command) { 383 printk(KERN_ERR "snd_opl3_init: command not defined!\n"); 384 return -EINVAL; 385 } 386 387 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TEST, OPL3_ENABLE_WAVE_SELECT); 388 /* Melodic mode */ 389 opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, 0x00); 390 391 switch (opl3->hardware & OPL3_HW_MASK) { 392 case OPL3_HW_OPL2: 393 opl3->max_voices = MAX_OPL2_VOICES; 394 break; 395 case OPL3_HW_OPL3: 396 case OPL3_HW_OPL4: 397 opl3->max_voices = MAX_OPL3_VOICES; 398 /* Enter OPL3 mode */ 399 opl3->command(opl3, OPL3_RIGHT | OPL3_REG_MODE, OPL3_OPL3_ENABLE); 400 } 401 return 0; 402 } 403 404 int snd_opl3_create(snd_card_t * card, 405 unsigned long l_port, 406 unsigned long r_port, 407 unsigned short hardware, 408 int integrated, 409 opl3_t ** ropl3) 410 { 411 opl3_t *opl3; 412 int err; 413 414 *ropl3 = NULL; 415 if ((err = snd_opl3_new(card, hardware, &opl3)) < 0) 416 return err; 417 if (! integrated) { 418 if ((opl3->res_l_port = request_region(l_port, 2, "OPL2/3 (left)")) == NULL) { 419 snd_opl3_free(opl3); 420 return -EBUSY; 421 } 422 if (r_port != 0 && 423 (opl3->res_r_port = request_region(r_port, 2, "OPL2/3 (right)")) == NULL) { 424 snd_opl3_free(opl3); 425 return -EBUSY; 426 } 427 } 428 opl3->l_port = l_port; 429 opl3->r_port = r_port; 430 431 switch (opl3->hardware) { 432 /* some hardware doesn't support timers */ 433 case OPL3_HW_OPL3_SV: 434 case OPL3_HW_OPL3_CS: 435 case OPL3_HW_OPL3_FM801: 436 opl3->command = &snd_opl3_command; 437 break; 438 case OPL3_HW_OPL3_PC98: 439 opl3->command = &snd_opl3_command; 440 441 /* Initialize? */ 442 opl3->command(opl3, OPL3_RIGHT | 0x05, 0x05); 443 opl3->command(opl3, OPL3_RIGHT | 0x08, 0x04); 444 opl3->command(opl3, OPL3_RIGHT | 0x08, 0x00); 445 opl3->command(opl3, OPL3_LEFT | 0xf7, 0x00); 446 opl3->command(opl3, OPL3_LEFT | 0x04, 0x60); 447 opl3->command(opl3, OPL3_LEFT | 0x04, 0x80); 448 inb(opl3->l_port); 449 450 opl3->command(opl3, OPL3_LEFT | 0x02, 0xff); 451 opl3->command(opl3, OPL3_LEFT | 0x04, 0x21); 452 inb(opl3->l_port); 453 454 opl3->command(opl3, OPL3_LEFT | 0x04, 0x60); 455 opl3->command(opl3, OPL3_LEFT | 0x04, 0x80); 456 457 break; 458 default: 459 opl3->command = &snd_opl2_command; 460 if ((err = snd_opl3_detect(opl3)) < 0) { 461 snd_printd("OPL2/3 chip not detected at 0x%lx/0x%lx\n", 462 opl3->l_port, opl3->r_port); 463 snd_opl3_free(opl3); 464 return err; 465 } 466 /* detect routine returns correct hardware type */ 467 switch (opl3->hardware & OPL3_HW_MASK) { 468 case OPL3_HW_OPL3: 469 case OPL3_HW_OPL4: 470 opl3->command = &snd_opl3_command; 471 } 472 } 473 474 snd_opl3_init(opl3); 475 476 *ropl3 = opl3; 477 return 0; 478 } 479 480 int snd_opl3_timer_new(opl3_t * opl3, int timer1_dev, int timer2_dev) 481 { 482 int err; 483 484 if (timer1_dev >= 0) 485 if ((err = snd_opl3_timer1_init(opl3, timer1_dev)) < 0) 486 return err; 487 if (timer2_dev >= 0) { 488 if ((err = snd_opl3_timer2_init(opl3, timer2_dev)) < 0) { 489 snd_device_free(opl3->card, opl3->timer1); 490 opl3->timer1 = NULL; 491 return err; 492 } 493 } 494 return 0; 495 } 496 497 int snd_opl3_hwdep_new(opl3_t * opl3, 498 int device, int seq_device, 499 snd_hwdep_t ** rhwdep) 500 { 501 snd_hwdep_t *hw; 502 snd_card_t *card = opl3->card; 503 int err; 504 505 if (rhwdep) 506 *rhwdep = NULL; 507 508 /* create hardware dependent device (direct FM) */ 509 510 if ((err = snd_hwdep_new(card, "OPL2/OPL3", device, &hw)) < 0) { 511 snd_device_free(card, opl3); 512 return err; 513 } 514 hw->private_data = opl3; 515 #ifdef CONFIG_SND_OSSEMUL 516 if (device == 0) { 517 hw->oss_type = SNDRV_OSS_DEVICE_TYPE_DMFM; 518 sprintf(hw->oss_dev, "dmfm%i", card->number); 519 } 495 strcpy(hw->name, hw->id); 496 switch (opl3->hardware & OPL3_HW_MASK) { 497 case OPL3_HW_OPL2: 498 strcpy(hw->name, "OPL2 FM"); 499 hw->iface = SNDRV_HWDEP_IFACE_OPL2; 500 break; 501 case OPL3_HW_OPL3: 502 strcpy(hw->name, "OPL3 FM"); 503 hw->iface = SNDRV_HWDEP_IFACE_OPL3; 504 break; 505 case OPL3_HW_OPL4: 506 strcpy(hw->name, "OPL4 FM"); 507 hw->iface = SNDRV_HWDEP_IFACE_OPL4; 508 break; 509 } 510 511 /* operators - only ioctl */ 512 hw->ops.open = snd_opl3_open; 513 hw->ops.ioctl = snd_opl3_ioctl; 514 hw->ops.release = snd_opl3_release; 515 516 opl3->seq_dev_num = seq_device; 517 #if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE)) 518 if (snd_seq_device_new(card, seq_device, SNDRV_SEQ_DEV_ID_OPL3, 519 sizeof(struct snd_opl3 *), &opl3->seq_dev) >= 0) { 520 strcpy(opl3->seq_dev->name, hw->name); 521 *(struct snd_opl3 **)SNDRV_SEQ_DEVICE_ARGPTR(opl3->seq_dev) = opl3; 522 } 520 523 #endif 521 strcpy(hw->name, hw->id); 522 switch (opl3->hardware & OPL3_HW_MASK) { 523 case OPL3_HW_OPL2: 524 strcpy(hw->name, "OPL2 FM"); 525 hw->iface = SNDRV_HWDEP_IFACE_OPL2; 526 break; 527 case OPL3_HW_OPL3: 528 strcpy(hw->name, "OPL3 FM"); 529 hw->iface = SNDRV_HWDEP_IFACE_OPL3; 530 break; 531 case OPL3_HW_OPL4: 532 strcpy(hw->name, "OPL4 FM"); 533 hw->iface = SNDRV_HWDEP_IFACE_OPL4; 534 break; 535 } 536 537 /* operators - only ioctl */ 538 hw->ops.open = snd_opl3_open; 539 hw->ops.ioctl = snd_opl3_ioctl; 540 hw->ops.release = snd_opl3_release; 541 542 opl3->seq_dev_num = seq_device; 543 #ifdef CONFIG_SND_SEQUENCER 544 if (snd_seq_device_new(card, seq_device, SNDRV_SEQ_DEV_ID_OPL3, 545 sizeof(opl3_t*), &opl3->seq_dev) >= 0) { 546 strcpy(opl3->seq_dev->name, hw->name); 547 *(opl3_t**)SNDRV_SEQ_DEVICE_ARGPTR(opl3->seq_dev) = opl3; 548 } 549 #endif 550 if (rhwdep) 551 *rhwdep = hw; 552 return 0; 524 if (rhwdep) 525 *rhwdep = hw; 526 return 0; 553 527 } 554 528 … … 570 544 static int __init alsa_opl3_init(void) 571 545 { 572 return 0;546 return 0; 573 547 } 574 548 -
GPL/trunk/alsa-kernel/drivers/opl3/opl3_midi.c
r33 r34 24 24 25 25 #include "opl3_voice.h" 26 #include <sound/asoundef.h> 26 27 27 28 extern char snd_opl3_regmap[MAX_OPL2_VOICES][4]; … … 41 42 static char opl3_volume_table[128] = 42 43 { 43 -63, -48, -40, -35, -32, -29, -27, -26,44 -24, -23, -21, -20, -19, -18, -18, -17,45 -16, -15, -15, -14, -13, -13, -12, -12,46 -11, -11, -10, -10, -10, -9, -9, -8,47 -8, -8, -7, -7, -7, -6, -6, -6,48 -5, -5, -5, -5, -4, -4, -4, -4,49 -3, -3, -3, -3, -2, -2, -2, -2,50 -2, -1, -1, -1, -1, 0, 0, 0,51 0, 0, 0, 1, 1, 1, 1, 1,52 1, 2, 2, 2, 2, 2, 2, 2,53 3, 3, 3, 3, 3, 3, 3, 4,54 4, 4, 4, 4, 4, 4, 4, 5,55 5, 5, 5, 5, 5, 5, 5, 5,56 6, 6, 6, 6, 6, 6, 6, 6,57 6, 7, 7, 7, 7, 7, 7, 7,58 7, 7, 7, 8, 8, 8, 8, 844 -63, -48, -40, -35, -32, -29, -27, -26, 45 -24, -23, -21, -20, -19, -18, -18, -17, 46 -16, -15, -15, -14, -13, -13, -12, -12, 47 -11, -11, -10, -10, -10, -9, -9, -8, 48 -8, -8, -7, -7, -7, -6, -6, -6, 49 -5, -5, -5, -5, -4, -4, -4, -4, 50 -3, -3, -3, -3, -2, -2, -2, -2, 51 -2, -1, -1, -1, -1, 0, 0, 0, 52 0, 0, 0, 1, 1, 1, 1, 1, 53 1, 2, 2, 2, 2, 2, 2, 2, 54 3, 3, 3, 3, 3, 3, 3, 4, 55 4, 4, 4, 4, 4, 4, 4, 5, 56 5, 5, 5, 5, 5, 5, 5, 5, 57 6, 6, 6, 6, 6, 6, 6, 6, 58 6, 7, 7, 7, 7, 7, 7, 7, 59 7, 7, 7, 8, 8, 8, 8, 8 59 60 }; 60 61 61 62 void snd_opl3_calc_volume(unsigned char *volbyte, int vel, 62 snd_midi_channel_t*chan)63 { 64 int oldvol, newvol, n;65 int volume;66 67 volume = (vel * chan->gm_volume * chan->gm_expression) / (127*127);68 if (volume > 127)69 volume = 127;70 71 oldvol = OPL3_TOTAL_LEVEL_MASK - (*volbyte & OPL3_TOTAL_LEVEL_MASK);72 73 newvol = opl3_volume_table[volume] + oldvol;74 if (newvol > OPL3_TOTAL_LEVEL_MASK)75 newvol = OPL3_TOTAL_LEVEL_MASK;76 else if (newvol < 0)77 newvol = 0;78 79 n = OPL3_TOTAL_LEVEL_MASK - (newvol & OPL3_TOTAL_LEVEL_MASK);80 81 *volbyte = (*volbyte & OPL3_KSL_MASK) | (n & OPL3_TOTAL_LEVEL_MASK);63 struct snd_midi_channel *chan) 64 { 65 int oldvol, newvol, n; 66 int volume; 67 68 volume = (vel * chan->gm_volume * chan->gm_expression) / (127*127); 69 if (volume > 127) 70 volume = 127; 71 72 oldvol = OPL3_TOTAL_LEVEL_MASK - (*volbyte & OPL3_TOTAL_LEVEL_MASK); 73 74 newvol = opl3_volume_table[volume] + oldvol; 75 if (newvol > OPL3_TOTAL_LEVEL_MASK) 76 newvol = OPL3_TOTAL_LEVEL_MASK; 77 else if (newvol < 0) 78 newvol = 0; 79 80 n = OPL3_TOTAL_LEVEL_MASK - (newvol & OPL3_TOTAL_LEVEL_MASK); 81 82 *volbyte = (*volbyte & OPL3_KSL_MASK) | (n & OPL3_TOTAL_LEVEL_MASK); 82 83 } 83 84 … … 87 88 static short opl3_note_table[16] = 88 89 { 89 305, 323, /* for pitch bending, -2 semitones */90 343, 363, 385, 408, 432, 458, 485, 514, 544, 577, 611, 647,91 686, 726 /* for pitch bending, +2 semitones */90 305, 323, /* for pitch bending, -2 semitones */ 91 343, 363, 385, 408, 432, 458, 485, 514, 544, 577, 611, 647, 92 686, 726 /* for pitch bending, +2 semitones */ 92 93 }; 93 94 94 95 static void snd_opl3_calc_pitch(unsigned char *fnum, unsigned char *blocknum, 95 int note, snd_midi_channel_t*chan)96 { 97 int block = ((note / 12) & 0x07) - 1;98 int idx = (note % 12) + 2;99 int freq;100 101 if (chan->midi_pitchbend) {102 int pitchbend = chan->midi_pitchbend;103 int segment;104 105 if (pitchbend > 0x1FFF)106 pitchbend = 0x1FFF;107 108 segment = pitchbend / 0x1000;109 freq = opl3_note_table[idx+segment];110 freq += ((opl3_note_table[idx+segment+1] - freq) *111 (pitchbend % 0x1000)) / 0x1000;112 } else {113 freq = opl3_note_table[idx];114 }115 116 *fnum = (unsigned char) freq;117 *blocknum = ((freq >> 8) & OPL3_FNUM_HIGH_MASK) |118 ((block << 2) & OPL3_BLOCKNUM_MASK);96 int note, struct snd_midi_channel *chan) 97 { 98 int block = ((note / 12) & 0x07) - 1; 99 int idx = (note % 12) + 2; 100 int freq; 101 102 if (chan->midi_pitchbend) { 103 int pitchbend = chan->midi_pitchbend; 104 int segment; 105 106 if (pitchbend > 0x1FFF) 107 pitchbend = 0x1FFF; 108 109 segment = pitchbend / 0x1000; 110 freq = opl3_note_table[idx+segment]; 111 freq += ((opl3_note_table[idx+segment+1] - freq) * 112 (pitchbend % 0x1000)) / 0x1000; 113 } else { 114 freq = opl3_note_table[idx]; 115 } 116 117 *fnum = (unsigned char) freq; 118 *blocknum = ((freq >> 8) & OPL3_FNUM_HIGH_MASK) | 119 ((block << 2) & OPL3_BLOCKNUM_MASK); 119 120 } 120 121 121 122 122 123 #ifdef DEBUG_ALLOC 123 static void debug_alloc( opl3_t*opl3, char *s, int voice) {124 int i;125 char *str = "x.24";126 127 printk("time %.5i: %s [%.2i]: ", opl3->use_time, s, voice);128 for (i = 0; i < opl3->max_voices; i++)129 printk("%c", *(str + opl3->voices[i].state + 1));130 printk("\n");124 static void debug_alloc(struct snd_opl3 *opl3, char *s, int voice) { 125 int i; 126 char *str = "x.24"; 127 128 printk("time %.5i: %s [%.2i]: ", opl3->use_time, s, voice); 129 for (i = 0; i < opl3->max_voices; i++) 130 printk("%c", *(str + opl3->voices[i].state + 1)); 131 printk("\n"); 131 132 } 132 133 #endif … … 135 136 * Get a FM voice (channel) to play a note on. 136 137 */ 137 static int opl3_get_voice( opl3_t*opl3, int instr_4op,138 snd_midi_channel_t*chan) {139 int chan_4op_1; /* first voice for 4op instrument */140 int chan_4op_2; /* second voice for 4op instrument */141 142 snd_opl3_voice_t*vp, *vp2;143 unsigned int voice_time;144 int i;138 static int opl3_get_voice(struct snd_opl3 *opl3, int instr_4op, 139 struct snd_midi_channel *chan) { 140 int chan_4op_1; /* first voice for 4op instrument */ 141 int chan_4op_2; /* second voice for 4op instrument */ 142 143 struct snd_opl3_voice *vp, *vp2; 144 unsigned int voice_time; 145 int i; 145 146 146 147 #ifdef DEBUG_ALLOC 147 char *alloc_type[3] = { "FREE ", "CHEAP ", "EXPENSIVE" };148 #endif 149 150 /* This is our "allocation cost" table */151 enum {152 FREE = 0, CHEAP, EXPENSIVE, END153 };154 155 /* Keeps track of what we are finding */156 struct best {157 unsigned int time;158 int voice;159 } best[END];160 struct best *bp;161 162 for (i = 0; i < END; i++) {163 best[i].time = (unsigned int)(-1); /* XXX MAX_?INT really */;164 best[i].voice = -1;165 }166 167 /* Look through all the channels for the most suitable. */168 for (i = 0; i < opl3->max_voices; i++) {169 vp = &opl3->voices[i];170 171 if (vp->state == SNDRV_OPL3_ST_NOT_AVAIL)172 /* skip unavailable channels, allocated by173 drum voices or by bounded 4op voices) */174 continue;175 176 voice_time = vp->time;177 bp = best;178 179 chan_4op_1 = ((i < 3) || (i > 8 && i < 12));180 chan_4op_2 = ((i > 2 && i < 6) || (i > 11 && i < 15));181 if (instr_4op) {182 /* allocate 4op voice */183 /* skip channels unavailable to 4op instrument */184 if (!chan_4op_1)185 continue;186 187 if (vp->state)188 /* kill one voice, CHEAP */189 bp++;190 /* get state of bounded 2op channel191 to be allocated for 4op instrument */192 vp2 = &opl3->voices[i + 3];193 if (vp2->state == SNDRV_OPL3_ST_ON_2OP) {194 /* kill two voices, EXPENSIVE */195 bp++;196 voice_time = (voice_time > vp->time) ?197 voice_time : vp->time;198 }199 } else {200 /* allocate 2op voice */201 if ((chan_4op_1) || (chan_4op_2))202 /* use bounded channels for 2op, CHEAP */203 bp++;204 else if (vp->state)205 /* kill one voice on 2op channel, CHEAP */206 bp++;207 /* raise kill cost to EXPENSIVE for all channels */208 if (vp->state)209 bp++;210 }211 if (voice_time < bp->time) {212 bp->time = voice_time;213 bp->voice = i;214 }215 }216 217 for (i = 0; i < END; i++) {218 if (best[i].voice >= 0) {148 char *alloc_type[3] = { "FREE ", "CHEAP ", "EXPENSIVE" }; 149 #endif 150 151 /* This is our "allocation cost" table */ 152 enum { 153 FREE = 0, CHEAP, EXPENSIVE, END 154 }; 155 156 /* Keeps track of what we are finding */ 157 struct best { 158 unsigned int time; 159 int voice; 160 } best[END]; 161 struct best *bp; 162 163 for (i = 0; i < END; i++) { 164 best[i].time = (unsigned int)(-1); /* XXX MAX_?INT really */; 165 best[i].voice = -1; 166 } 167 168 /* Look through all the channels for the most suitable. */ 169 for (i = 0; i < opl3->max_voices; i++) { 170 vp = &opl3->voices[i]; 171 172 if (vp->state == SNDRV_OPL3_ST_NOT_AVAIL) 173 /* skip unavailable channels, allocated by 174 drum voices or by bounded 4op voices) */ 175 continue; 176 177 voice_time = vp->time; 178 bp = best; 179 180 chan_4op_1 = ((i < 3) || (i > 8 && i < 12)); 181 chan_4op_2 = ((i > 2 && i < 6) || (i > 11 && i < 15)); 182 if (instr_4op) { 183 /* allocate 4op voice */ 184 /* skip channels unavailable to 4op instrument */ 185 if (!chan_4op_1) 186 continue; 187 188 if (vp->state) 189 /* kill one voice, CHEAP */ 190 bp++; 191 /* get state of bounded 2op channel 192 to be allocated for 4op instrument */ 193 vp2 = &opl3->voices[i + 3]; 194 if (vp2->state == SNDRV_OPL3_ST_ON_2OP) { 195 /* kill two voices, EXPENSIVE */ 196 bp++; 197 voice_time = (voice_time > vp->time) ? 198 voice_time : vp->time; 199 } 200 } else { 201 /* allocate 2op voice */ 202 if ((chan_4op_1) || (chan_4op_2)) 203 /* use bounded channels for 2op, CHEAP */ 204 bp++; 205 else if (vp->state) 206 /* kill one voice on 2op channel, CHEAP */ 207 bp++; 208 /* raise kill cost to EXPENSIVE for all channels */ 209 if (vp->state) 210 bp++; 211 } 212 if (voice_time < bp->time) { 213 bp->time = voice_time; 214 bp->voice = i; 215 } 216 } 217 218 for (i = 0; i < END; i++) { 219 if (best[i].voice >= 0) { 219 220 #ifdef DEBUG_ALLOC 220 printk("%s %iop allocation on voice %i\n",221 alloc_type[i], instr_4op ? 4 : 2,222 best[i].voice);223 #endif 224 return best[i].voice;225 }226 }227 /* not found */228 return -1;221 printk("%s %iop allocation on voice %i\n", 222 alloc_type[i], instr_4op ? 4 : 2, 223 best[i].voice); 224 #endif 225 return best[i].voice; 226 } 227 } 228 /* not found */ 229 return -1; 229 230 } 230 231 … … 237 238 { 238 239 239 opl3_t *opl3 = (opl3_t*)data;240 int again = 0;241 int i;242 243 spin_lock(&opl3->sys_timer_lock);244 for (i = 0; i < opl3->max_voices; i++) {245 snd_opl3_voice_t*vp = &opl3->voices[i];246 if (vp->state > 0 && vp->note_off_check) {247 if (vp->note_off == jiffies)248 snd_opl3_note_off(opl3, vp->note, 0, vp->chan);249 else250 again++;251 }252 }253 if (again) {254 opl3->tlist.expires = jiffies + 1; /* invoke again */255 add_timer(&opl3->tlist);256 } else {257 opl3->sys_timer_status = 0;258 }259 spin_unlock(&opl3->sys_timer_lock);240 struct snd_opl3 *opl3 = (struct snd_opl3 *)data; 241 int again = 0; 242 int i; 243 244 spin_lock(&opl3->sys_timer_lock); 245 for (i = 0; i < opl3->max_voices; i++) { 246 struct snd_opl3_voice *vp = &opl3->voices[i]; 247 if (vp->state > 0 && vp->note_off_check) { 248 if (vp->note_off == jiffies) 249 snd_opl3_note_off(opl3, vp->note, 0, vp->chan); 250 else 251 again++; 252 } 253 } 254 if (again) { 255 opl3->tlist.expires = jiffies + 1; /* invoke again */ 256 add_timer(&opl3->tlist); 257 } else { 258 opl3->sys_timer_status = 0; 259 } 260 spin_unlock(&opl3->sys_timer_lock); 260 261 } 261 262 … … 263 264 * Start system timer 264 265 */ 265 void snd_opl3_start_timer(opl3_t*opl3)266 { 267 unsigned long flags;268 spin_lock_irqsave(&opl3->sys_timer_lock, flags);269 if (! opl3->sys_timer_status) {270 opl3->tlist.expires = jiffies + 1;271 add_timer(&opl3->tlist);272 opl3->sys_timer_status = 1;273 }274 spin_unlock_irqrestore(&opl3->sys_timer_lock, flags);266 static void snd_opl3_start_timer(struct snd_opl3 *opl3) 267 { 268 unsigned long flags; 269 spin_lock_irqsave(&opl3->sys_timer_lock, flags); 270 if (! opl3->sys_timer_status) { 271 opl3->tlist.expires = jiffies + 1; 272 add_timer(&opl3->tlist); 273 opl3->sys_timer_status = 1; 274 } 275 spin_unlock_irqrestore(&opl3->sys_timer_lock, flags); 275 276 } 276 277 … … 279 280 280 281 static int snd_opl3_oss_map[MAX_OPL3_VOICES] = { 281 0, 1, 2, 9, 10, 11, 6, 7, 8, 15, 16, 17, 3, 4 ,5, 12, 13, 14282 0, 1, 2, 9, 10, 11, 6, 7, 8, 15, 16, 17, 3, 4 ,5, 12, 13, 14 282 283 }; 283 284 … … 285 286 * Start a note. 286 287 */ 287 void snd_opl3_note_on(void *p, int note, int vel, s nd_midi_channel_t*chan)288 { 289 opl3_t*opl3;290 snd_seq_instr_twanted;291 snd_seq_kinstr_t*kinstr;292 int instr_4op;293 294 int voice;295 snd_opl3_voice_t*vp, *vp2;296 unsigned short connect_mask;297 unsigned char connection;298 unsigned char vol_op[4];299 300 int extra_prg = 0;301 302 unsigned short reg_side;303 unsigned char op_offset;304 unsigned char voice_offset;305 unsigned short opl3_reg;306 unsigned char reg_val;307 308 int key = note;309 unsigned char fnum, blocknum;310 int i;311 312 fm_instrument_t *fm;313 unsigned long flags;314 315 opl3 = p;316 317 #ifdef DEBUG_MIDI 318 snd_printk("Note on, ch %i, inst %i, note %i, vel %i\n",319 chan->number, chan->midi_program, note, vel);320 #endif 321 wanted.cluster = 0;322 wanted.std = SNDRV_SEQ_INSTR_TYPE2_OPL2_3;323 324 /* in SYNTH mode, application takes care of voices */325 /* in SEQ mode, drum voice numbers are notes on drum channel */326 if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) {327 if (chan->drum_channel) {328 /* percussion instruments are located in bank 128 */329 wanted.bank = 128;330 wanted.prg = note;331 } else {332 wanted.bank = chan->gm_bank_select;333 wanted.prg = chan->midi_program;334 }335 } else {336 /* Prepare for OSS mode */337 if (chan->number >= MAX_OPL3_VOICES)338 return;339 340 /* OSS instruments are located in bank 127 */341 wanted.bank = 127;342 wanted.prg = chan->midi_program;343 }344 345 spin_lock_irqsave(&opl3->voice_lock, flags);346 347 if (use_internal_drums) {348 snd_opl3_drum_switch(opl3, note, vel, 1, chan);349 spin_unlock_irqrestore(&opl3->voice_lock, flags);350 return;351 }352 353 __extra_prg:354 kinstr = snd_seq_instr_find(opl3->ilist, &wanted, 1, 0);355 if (kinstr == NULL) {356 spin_unlock_irqrestore(&opl3->voice_lock, flags);357 return;358 }359 360 fm = KINSTR_DATA(kinstr);361 362 switch (fm->type) {363 case FM_PATCH_OPL2:364 instr_4op = 0;365 break;366 case FM_PATCH_OPL3:367 if (opl3->hardware >= OPL3_HW_OPL3) {368 instr_4op = 1;369 break;370 }371 default:372 snd_seq_instr_free_use(opl3->ilist, kinstr);373 spin_unlock_irqrestore(&opl3->voice_lock, flags);374 return;375 }376 377 #ifdef DEBUG_MIDI 378 snd_printk(" --> OPL%i instrument: %s\n",379 instr_4op ? 3 : 2, kinstr->name);380 #endif 381 /* in SYNTH mode, application takes care of voices */382 /* in SEQ mode, allocate voice on free OPL3 channel */383 if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) {384 voice = opl3_get_voice(opl3, instr_4op, chan);385 } else {386 /* remap OSS voice */387 voice = snd_opl3_oss_map[chan->number]; 388 }389 390 if (voice < MAX_OPL2_VOICES) {391 /* Left register block for voices 0 .. 8 */392 reg_side = OPL3_LEFT;393 voice_offset = voice;394 connect_mask = (OPL3_LEFT_4OP_0 << voice_offset) & 0x07;395 } else {396 /* Right register block for voices 9 .. 17 */397 reg_side = OPL3_RIGHT;398 voice_offset = voice - MAX_OPL2_VOICES;399 connect_mask = (OPL3_RIGHT_4OP_0 << voice_offset) & 0x38;400 }401 402 /* kill voice on channel */403 vp = &opl3->voices[voice];404 if (vp->state > 0) {405 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset);406 reg_val = vp->keyon_reg & ~OPL3_KEYON_BIT;407 opl3->command(opl3, opl3_reg, reg_val);408 }409 if (instr_4op) {410 vp2 = &opl3->voices[voice + 3];411 if (vp->state > 0) {412 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK +413 voice_offset + 3);414 reg_val = vp->keyon_reg & ~OPL3_KEYON_BIT;415 opl3->command(opl3, opl3_reg, reg_val);416 }417 }418 419 /* set connection register */420 if (instr_4op) {421 if ((opl3->connection_reg ^ connect_mask) & connect_mask) {422 opl3->connection_reg |= connect_mask;423 /* set connection bit */424 opl3_reg = OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT;425 opl3->command(opl3, opl3_reg, opl3->connection_reg);426 }427 } else {428 if ((opl3->connection_reg ^ ~connect_mask) & connect_mask) {429 opl3->connection_reg &= ~connect_mask;430 /* clear connection bit */431 opl3_reg = OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT;432 opl3->command(opl3, opl3_reg, opl3->connection_reg);433 }434 }435 436 #ifdef DEBUG_MIDI 437 snd_printk(" --> setting OPL3 connection: 0x%x\n",438 opl3->connection_reg);439 #endif 440 /*441 * calculate volume depending on connection442 * between FM operators (see include/opl3.h)443 */444 for (i = 0; i < (instr_4op ? 4 : 2); i++)445 vol_op[i] = fm->op[i].ksl_level;446 447 connection = fm->feedback_connection[0] & 0x01;448 if (instr_4op) {449 connection <<= 1;450 connection |= fm->feedback_connection[1] & 0x01;451 452 snd_opl3_calc_volume(&vol_op[3], vel, chan);453 switch (connection) {454 case 0x03:455 snd_opl3_calc_volume(&vol_op[2], vel, chan);456 /* fallthru */457 case 0x02:458 snd_opl3_calc_volume(&vol_op[0], vel, chan);459 break;460 case 0x01:461 snd_opl3_calc_volume(&vol_op[1], vel, chan);462 }463 } else {464 snd_opl3_calc_volume(&vol_op[1], vel, chan);465 if (connection)466 snd_opl3_calc_volume(&vol_op[0], vel, chan);467 }468 469 /* Program the FM voice characteristics */470 for (i = 0; i < (instr_4op ? 4 : 2); i++) {471 #ifdef DEBUG_MIDI 472 snd_printk(" --> programming operator %i\n", i);473 #endif 474 op_offset = snd_opl3_regmap[voice_offset][i];475 476 /* Set OPL3 AM_VIB register of requested voice/operator */ 477 reg_val = fm->op[i].am_vib;478 opl3_reg = reg_side | (OPL3_REG_AM_VIB + op_offset);479 opl3->command(opl3, opl3_reg, reg_val);480 481 /* Set OPL3 KSL_LEVEL register of requested voice/operator */ 482 reg_val = vol_op[i];483 opl3_reg = reg_side | (OPL3_REG_KSL_LEVEL + op_offset);484 opl3->command(opl3, opl3_reg, reg_val);485 486 /* Set OPL3 ATTACK_DECAY register of requested voice/operator */ 487 reg_val = fm->op[i].attack_decay;488 opl3_reg = reg_side | (OPL3_REG_ATTACK_DECAY + op_offset);489 opl3->command(opl3, opl3_reg, reg_val);490 491 /* Set OPL3 SUSTAIN_RELEASE register of requested voice/operator */ 492 reg_val = fm->op[i].sustain_release;493 opl3_reg = reg_side | (OPL3_REG_SUSTAIN_RELEASE + op_offset);494 opl3->command(opl3, opl3_reg, reg_val);495 496 /* Select waveform */497 reg_val = fm->op[i].wave_select;498 opl3_reg = reg_side | (OPL3_REG_WAVE_SELECT + op_offset);499 opl3->command(opl3, opl3_reg, reg_val);500 }501 502 /* Set operator feedback and 2op inter-operator connection */503 reg_val = fm->feedback_connection[0];504 /* Set output voice connection */505 reg_val |= OPL3_STEREO_BITS;506 if (chan->gm_pan < 43)507 reg_val &= ~OPL3_VOICE_TO_RIGHT;508 if (chan->gm_pan > 85)509 reg_val &= ~OPL3_VOICE_TO_LEFT;510 opl3_reg = reg_side | (OPL3_REG_FEEDBACK_CONNECTION + voice_offset);511 opl3->command(opl3, opl3_reg, reg_val);512 513 if (instr_4op) {514 /* Set 4op inter-operator connection */515 reg_val = fm->feedback_connection[1] & OPL3_CONNECTION_BIT;516 /* Set output voice connection */517 reg_val |= OPL3_STEREO_BITS;518 if (chan->gm_pan < 43)519 reg_val &= ~OPL3_VOICE_TO_RIGHT;520 if (chan->gm_pan > 85)521 reg_val &= ~OPL3_VOICE_TO_LEFT;522 opl3_reg = reg_side | (OPL3_REG_FEEDBACK_CONNECTION +523 voice_offset + 3);524 opl3->command(opl3, opl3_reg, reg_val);525 }526 527 /*528 * Special treatment of percussion notes for fm:529 * Requested pitch is really program, and pitch for530 * device is whatever was specified in the patch library.531 */532 if (fm->fix_key)533 note = fm->fix_key;534 /*535 * use transpose if defined in patch library536 */537 if (fm->trnsps)538 note += (fm->trnsps - 64);539 540 snd_opl3_calc_pitch(&fnum, &blocknum, note, chan);541 542 /* Set OPL3 FNUM_LOW register of requested voice */543 opl3_reg = reg_side | (OPL3_REG_FNUM_LOW + voice_offset);544 opl3->command(opl3, opl3_reg, fnum);545 546 opl3->voices[voice].keyon_reg = blocknum;547 548 /* Set output sound flag */549 blocknum |= OPL3_KEYON_BIT;550 551 #ifdef DEBUG_MIDI 552 snd_printk(" --> trigger voice %i\n", voice);553 #endif 554 /* Set OPL3 KEYON_BLOCK register of requested voice */ 555 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset);556 opl3->command(opl3, opl3_reg, blocknum);557 558 /* kill note after fixed duration (in centiseconds) */559 if (fm->fix_dur) {560 opl3->voices[voice].note_off = jiffies +561 (fm->fix_dur * HZ) / 100;562 snd_opl3_start_timer(opl3);563 opl3->voices[voice].note_off_check = 1;564 } else565 opl3->voices[voice].note_off_check = 0;566 567 /* get extra pgm, but avoid possible loops */568 extra_prg = (extra_prg) ? 0 : fm->modes;569 570 snd_seq_instr_free_use(opl3->ilist, kinstr);571 572 /* do the bookkeeping */573 vp->time = opl3->use_time++;574 vp->note = key;575 vp->chan = chan;576 577 if (instr_4op) {578 vp->state = SNDRV_OPL3_ST_ON_4OP;579 580 vp2 = &opl3->voices[voice + 3];581 vp2->time = opl3->use_time++;582 vp2->note = key;583 vp2->chan = chan;584 vp2->state = SNDRV_OPL3_ST_NOT_AVAIL;585 } else {586 if (vp->state == SNDRV_OPL3_ST_ON_4OP) {587 /* 4op killed by 2op, release bounded voice */588 vp2 = &opl3->voices[voice + 3];589 vp2->time = opl3->use_time++;590 vp2->state = SNDRV_OPL3_ST_OFF;591 }592 vp->state = SNDRV_OPL3_ST_ON_2OP;593 }288 void snd_opl3_note_on(void *p, int note, int vel, struct snd_midi_channel *chan) 289 { 290 struct snd_opl3 *opl3; 291 struct snd_seq_instr wanted; 292 struct snd_seq_kinstr *kinstr; 293 int instr_4op; 294 295 int voice; 296 struct snd_opl3_voice *vp, *vp2; 297 unsigned short connect_mask; 298 unsigned char connection; 299 unsigned char vol_op[4]; 300 301 int extra_prg = 0; 302 303 unsigned short reg_side; 304 unsigned char op_offset; 305 unsigned char voice_offset; 306 unsigned short opl3_reg; 307 unsigned char reg_val; 308 309 int key = note; 310 unsigned char fnum, blocknum; 311 int i; 312 313 struct fm_instrument *fm; 314 unsigned long flags; 315 316 opl3 = p; 317 318 #ifdef DEBUG_MIDI 319 snd_printk("Note on, ch %i, inst %i, note %i, vel %i\n", 320 chan->number, chan->midi_program, note, vel); 321 #endif 322 wanted.cluster = 0; 323 wanted.std = SNDRV_SEQ_INSTR_TYPE2_OPL2_3; 324 325 /* in SYNTH mode, application takes care of voices */ 326 /* in SEQ mode, drum voice numbers are notes on drum channel */ 327 if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) { 328 if (chan->drum_channel) { 329 /* percussion instruments are located in bank 128 */ 330 wanted.bank = 128; 331 wanted.prg = note; 332 } else { 333 wanted.bank = chan->gm_bank_select; 334 wanted.prg = chan->midi_program; 335 } 336 } else { 337 /* Prepare for OSS mode */ 338 if (chan->number >= MAX_OPL3_VOICES) 339 return; 340 341 /* OSS instruments are located in bank 127 */ 342 wanted.bank = 127; 343 wanted.prg = chan->midi_program; 344 } 345 346 spin_lock_irqsave(&opl3->voice_lock, flags); 347 348 if (use_internal_drums) { 349 snd_opl3_drum_switch(opl3, note, vel, 1, chan); 350 spin_unlock_irqrestore(&opl3->voice_lock, flags); 351 return; 352 } 353 354 __extra_prg: 355 kinstr = snd_seq_instr_find(opl3->ilist, &wanted, 1, 0); 356 if (kinstr == NULL) { 357 spin_unlock_irqrestore(&opl3->voice_lock, flags); 358 return; 359 } 360 361 fm = KINSTR_DATA(kinstr); 362 363 switch (fm->type) { 364 case FM_PATCH_OPL2: 365 instr_4op = 0; 366 break; 367 case FM_PATCH_OPL3: 368 if (opl3->hardware >= OPL3_HW_OPL3) { 369 instr_4op = 1; 370 break; 371 } 372 default: 373 snd_seq_instr_free_use(opl3->ilist, kinstr); 374 spin_unlock_irqrestore(&opl3->voice_lock, flags); 375 return; 376 } 377 378 #ifdef DEBUG_MIDI 379 snd_printk(" --> OPL%i instrument: %s\n", 380 instr_4op ? 3 : 2, kinstr->name); 381 #endif 382 /* in SYNTH mode, application takes care of voices */ 383 /* in SEQ mode, allocate voice on free OPL3 channel */ 384 if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) { 385 voice = opl3_get_voice(opl3, instr_4op, chan); 386 } else { 387 /* remap OSS voice */ 388 voice = snd_opl3_oss_map[chan->number]; 389 } 390 391 if (voice < MAX_OPL2_VOICES) { 392 /* Left register block for voices 0 .. 8 */ 393 reg_side = OPL3_LEFT; 394 voice_offset = voice; 395 connect_mask = (OPL3_LEFT_4OP_0 << voice_offset) & 0x07; 396 } else { 397 /* Right register block for voices 9 .. 17 */ 398 reg_side = OPL3_RIGHT; 399 voice_offset = voice - MAX_OPL2_VOICES; 400 connect_mask = (OPL3_RIGHT_4OP_0 << voice_offset) & 0x38; 401 } 402 403 /* kill voice on channel */ 404 vp = &opl3->voices[voice]; 405 if (vp->state > 0) { 406 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset); 407 reg_val = vp->keyon_reg & ~OPL3_KEYON_BIT; 408 opl3->command(opl3, opl3_reg, reg_val); 409 } 410 if (instr_4op) { 411 vp2 = &opl3->voices[voice + 3]; 412 if (vp->state > 0) { 413 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + 414 voice_offset + 3); 415 reg_val = vp->keyon_reg & ~OPL3_KEYON_BIT; 416 opl3->command(opl3, opl3_reg, reg_val); 417 } 418 } 419 420 /* set connection register */ 421 if (instr_4op) { 422 if ((opl3->connection_reg ^ connect_mask) & connect_mask) { 423 opl3->connection_reg |= connect_mask; 424 /* set connection bit */ 425 opl3_reg = OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT; 426 opl3->command(opl3, opl3_reg, opl3->connection_reg); 427 } 428 } else { 429 if ((opl3->connection_reg ^ ~connect_mask) & connect_mask) { 430 opl3->connection_reg &= ~connect_mask; 431 /* clear connection bit */ 432 opl3_reg = OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT; 433 opl3->command(opl3, opl3_reg, opl3->connection_reg); 434 } 435 } 436 437 #ifdef DEBUG_MIDI 438 snd_printk(" --> setting OPL3 connection: 0x%x\n", 439 opl3->connection_reg); 440 #endif 441 /* 442 * calculate volume depending on connection 443 * between FM operators (see include/opl3.h) 444 */ 445 for (i = 0; i < (instr_4op ? 4 : 2); i++) 446 vol_op[i] = fm->op[i].ksl_level; 447 448 connection = fm->feedback_connection[0] & 0x01; 449 if (instr_4op) { 450 connection <<= 1; 451 connection |= fm->feedback_connection[1] & 0x01; 452 453 snd_opl3_calc_volume(&vol_op[3], vel, chan); 454 switch (connection) { 455 case 0x03: 456 snd_opl3_calc_volume(&vol_op[2], vel, chan); 457 /* fallthru */ 458 case 0x02: 459 snd_opl3_calc_volume(&vol_op[0], vel, chan); 460 break; 461 case 0x01: 462 snd_opl3_calc_volume(&vol_op[1], vel, chan); 463 } 464 } else { 465 snd_opl3_calc_volume(&vol_op[1], vel, chan); 466 if (connection) 467 snd_opl3_calc_volume(&vol_op[0], vel, chan); 468 } 469 470 /* Program the FM voice characteristics */ 471 for (i = 0; i < (instr_4op ? 4 : 2); i++) { 472 #ifdef DEBUG_MIDI 473 snd_printk(" --> programming operator %i\n", i); 474 #endif 475 op_offset = snd_opl3_regmap[voice_offset][i]; 476 477 /* Set OPL3 AM_VIB register of requested voice/operator */ 478 reg_val = fm->op[i].am_vib; 479 opl3_reg = reg_side | (OPL3_REG_AM_VIB + op_offset); 480 opl3->command(opl3, opl3_reg, reg_val); 481 482 /* Set OPL3 KSL_LEVEL register of requested voice/operator */ 483 reg_val = vol_op[i]; 484 opl3_reg = reg_side | (OPL3_REG_KSL_LEVEL + op_offset); 485 opl3->command(opl3, opl3_reg, reg_val); 486 487 /* Set OPL3 ATTACK_DECAY register of requested voice/operator */ 488 reg_val = fm->op[i].attack_decay; 489 opl3_reg = reg_side | (OPL3_REG_ATTACK_DECAY + op_offset); 490 opl3->command(opl3, opl3_reg, reg_val); 491 492 /* Set OPL3 SUSTAIN_RELEASE register of requested voice/operator */ 493 reg_val = fm->op[i].sustain_release; 494 opl3_reg = reg_side | (OPL3_REG_SUSTAIN_RELEASE + op_offset); 495 opl3->command(opl3, opl3_reg, reg_val); 496 497 /* Select waveform */ 498 reg_val = fm->op[i].wave_select; 499 opl3_reg = reg_side | (OPL3_REG_WAVE_SELECT + op_offset); 500 opl3->command(opl3, opl3_reg, reg_val); 501 } 502 503 /* Set operator feedback and 2op inter-operator connection */ 504 reg_val = fm->feedback_connection[0]; 505 /* Set output voice connection */ 506 reg_val |= OPL3_STEREO_BITS; 507 if (chan->gm_pan < 43) 508 reg_val &= ~OPL3_VOICE_TO_RIGHT; 509 if (chan->gm_pan > 85) 510 reg_val &= ~OPL3_VOICE_TO_LEFT; 511 opl3_reg = reg_side | (OPL3_REG_FEEDBACK_CONNECTION + voice_offset); 512 opl3->command(opl3, opl3_reg, reg_val); 513 514 if (instr_4op) { 515 /* Set 4op inter-operator connection */ 516 reg_val = fm->feedback_connection[1] & OPL3_CONNECTION_BIT; 517 /* Set output voice connection */ 518 reg_val |= OPL3_STEREO_BITS; 519 if (chan->gm_pan < 43) 520 reg_val &= ~OPL3_VOICE_TO_RIGHT; 521 if (chan->gm_pan > 85) 522 reg_val &= ~OPL3_VOICE_TO_LEFT; 523 opl3_reg = reg_side | (OPL3_REG_FEEDBACK_CONNECTION + 524 voice_offset + 3); 525 opl3->command(opl3, opl3_reg, reg_val); 526 } 527 528 /* 529 * Special treatment of percussion notes for fm: 530 * Requested pitch is really program, and pitch for 531 * device is whatever was specified in the patch library. 532 */ 533 if (fm->fix_key) 534 note = fm->fix_key; 535 /* 536 * use transpose if defined in patch library 537 */ 538 if (fm->trnsps) 539 note += (fm->trnsps - 64); 540 541 snd_opl3_calc_pitch(&fnum, &blocknum, note, chan); 542 543 /* Set OPL3 FNUM_LOW register of requested voice */ 544 opl3_reg = reg_side | (OPL3_REG_FNUM_LOW + voice_offset); 545 opl3->command(opl3, opl3_reg, fnum); 546 547 opl3->voices[voice].keyon_reg = blocknum; 548 549 /* Set output sound flag */ 550 blocknum |= OPL3_KEYON_BIT; 551 552 #ifdef DEBUG_MIDI 553 snd_printk(" --> trigger voice %i\n", voice); 554 #endif 555 /* Set OPL3 KEYON_BLOCK register of requested voice */ 556 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset); 557 opl3->command(opl3, opl3_reg, blocknum); 558 559 /* kill note after fixed duration (in centiseconds) */ 560 if (fm->fix_dur) { 561 opl3->voices[voice].note_off = jiffies + 562 (fm->fix_dur * HZ) / 100; 563 snd_opl3_start_timer(opl3); 564 opl3->voices[voice].note_off_check = 1; 565 } else 566 opl3->voices[voice].note_off_check = 0; 567 568 /* get extra pgm, but avoid possible loops */ 569 extra_prg = (extra_prg) ? 0 : fm->modes; 570 571 snd_seq_instr_free_use(opl3->ilist, kinstr); 572 573 /* do the bookkeeping */ 574 vp->time = opl3->use_time++; 575 vp->note = key; 576 vp->chan = chan; 577 578 if (instr_4op) { 579 vp->state = SNDRV_OPL3_ST_ON_4OP; 580 581 vp2 = &opl3->voices[voice + 3]; 582 vp2->time = opl3->use_time++; 583 vp2->note = key; 584 vp2->chan = chan; 585 vp2->state = SNDRV_OPL3_ST_NOT_AVAIL; 586 } else { 587 if (vp->state == SNDRV_OPL3_ST_ON_4OP) { 588 /* 4op killed by 2op, release bounded voice */ 589 vp2 = &opl3->voices[voice + 3]; 590 vp2->time = opl3->use_time++; 591 vp2->state = SNDRV_OPL3_ST_OFF; 592 } 593 vp->state = SNDRV_OPL3_ST_ON_2OP; 594 } 594 595 595 596 #ifdef DEBUG_ALLOC 596 debug_alloc(opl3, "note on ", voice); 597 #endif 598 599 /* allocate extra program if specified in patch library */ 600 if (extra_prg) { 601 if (extra_prg > 128) { 602 wanted.bank = 128; 603 /* percussions start at 35 */ 604 wanted.prg = extra_prg - 128 + 35 - 1; 605 } else { 606 wanted.bank = 0; 607 wanted.prg = extra_prg - 1; 608 } 609 #ifdef DEBUG_MIDI 610 snd_printk(" *** allocating extra program\n"); 611 #endif 612 goto __extra_prg; 613 } 614 spin_unlock_irqrestore(&opl3->voice_lock, flags); 615 } 616 617 static void snd_opl3_kill_voice(opl3_t *opl3, int voice) 618 { 619 unsigned short reg_side; 620 unsigned char voice_offset; 621 unsigned short opl3_reg; 622 623 snd_opl3_voice_t *vp, *vp2; 624 625 snd_assert(voice < MAX_OPL3_VOICES, return); 626 vp = &opl3->voices[voice]; 627 if (voice < MAX_OPL2_VOICES) { 628 /* Left register block for voices 0 .. 8 */ 629 reg_side = OPL3_LEFT; 630 voice_offset = voice; 631 } else { 632 /* Right register block for voices 9 .. 17 */ 633 reg_side = OPL3_RIGHT; 634 voice_offset = voice - MAX_OPL2_VOICES; 635 } 636 637 /* kill voice */ 638 #ifdef DEBUG_MIDI 639 snd_printk(" --> kill voice %i\n", voice); 640 #endif 641 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset); 642 /* clear Key ON bit */ 643 opl3->command(opl3, opl3_reg, vp->keyon_reg); 644 645 /* do the bookkeeping */ 646 vp->time = opl3->use_time++; 647 648 if (vp->state == SNDRV_OPL3_ST_ON_4OP) { 649 vp2 = &opl3->voices[voice + 3]; 650 651 vp2->time = opl3->use_time++; 652 vp2->state = SNDRV_OPL3_ST_OFF; 653 } 654 vp->state = SNDRV_OPL3_ST_OFF; 597 debug_alloc(opl3, "note on ", voice); 598 #endif 599 600 /* allocate extra program if specified in patch library */ 601 if (extra_prg) { 602 if (extra_prg > 128) { 603 wanted.bank = 128; 604 /* percussions start at 35 */ 605 wanted.prg = extra_prg - 128 + 35 - 1; 606 } else { 607 wanted.bank = 0; 608 wanted.prg = extra_prg - 1; 609 } 610 #ifdef DEBUG_MIDI 611 snd_printk(" *** allocating extra program\n"); 612 #endif 613 goto __extra_prg; 614 } 615 spin_unlock_irqrestore(&opl3->voice_lock, flags); 616 } 617 618 static void snd_opl3_kill_voice(struct snd_opl3 *opl3, int voice) 619 { 620 unsigned short reg_side; 621 unsigned char voice_offset; 622 unsigned short opl3_reg; 623 624 struct snd_opl3_voice *vp, *vp2; 625 626 snd_assert(voice < MAX_OPL3_VOICES, return); 627 628 vp = &opl3->voices[voice]; 629 if (voice < MAX_OPL2_VOICES) { 630 /* Left register block for voices 0 .. 8 */ 631 reg_side = OPL3_LEFT; 632 voice_offset = voice; 633 } else { 634 /* Right register block for voices 9 .. 17 */ 635 reg_side = OPL3_RIGHT; 636 voice_offset = voice - MAX_OPL2_VOICES; 637 } 638 639 /* kill voice */ 640 #ifdef DEBUG_MIDI 641 snd_printk(" --> kill voice %i\n", voice); 642 #endif 643 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset); 644 /* clear Key ON bit */ 645 opl3->command(opl3, opl3_reg, vp->keyon_reg); 646 647 /* do the bookkeeping */ 648 vp->time = opl3->use_time++; 649 650 if (vp->state == SNDRV_OPL3_ST_ON_4OP) { 651 vp2 = &opl3->voices[voice + 3]; 652 653 vp2->time = opl3->use_time++; 654 vp2->state = SNDRV_OPL3_ST_OFF; 655 } 656 vp->state = SNDRV_OPL3_ST_OFF; 655 657 #ifdef DEBUG_ALLOC 656 debug_alloc(opl3, "note off", voice);658 debug_alloc(opl3, "note off", voice); 657 659 #endif 658 660 … … 662 664 * Release a note in response to a midi note off. 663 665 */ 664 void snd_opl3_note_off(void *p, int note, int vel, s nd_midi_channel_t*chan)665 { 666 opl3_t*opl3;667 668 int voice;669 snd_opl3_voice_t*vp;670 671 unsigned long flags;672 673 opl3 = p;674 675 #ifdef DEBUG_MIDI 676 snd_printk("Note off, ch %i, inst %i, note %i\n",677 chan->number, chan->midi_program, note);678 #endif 679 680 spin_lock_irqsave(&opl3->voice_lock, flags);681 682 if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) {683 if (chan->drum_channel && use_internal_drums) {684 snd_opl3_drum_switch(opl3, note, vel, 0, chan);685 spin_unlock_irqrestore(&opl3->voice_lock, flags);686 return;687 }688 /* this loop will hopefully kill all extra voices, because689 they are grouped by the same channel and note values */690 for (voice = 0; voice < opl3->max_voices; voice++) {691 vp = &opl3->voices[voice];692 if (vp->state > 0 && vp->chan == chan && vp->note == note) {693 snd_opl3_kill_voice(opl3, voice);694 }695 }696 } else {697 /* remap OSS voices */698 if (chan->number < MAX_OPL3_VOICES) {699 voice = snd_opl3_oss_map[chan->number]; 700 snd_opl3_kill_voice(opl3, voice);701 }702 }703 spin_unlock_irqrestore(&opl3->voice_lock, flags);666 void snd_opl3_note_off(void *p, int note, int vel, struct snd_midi_channel *chan) 667 { 668 struct snd_opl3 *opl3; 669 670 int voice; 671 struct snd_opl3_voice *vp; 672 673 unsigned long flags; 674 675 opl3 = p; 676 677 #ifdef DEBUG_MIDI 678 snd_printk("Note off, ch %i, inst %i, note %i\n", 679 chan->number, chan->midi_program, note); 680 #endif 681 682 spin_lock_irqsave(&opl3->voice_lock, flags); 683 684 if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) { 685 if (chan->drum_channel && use_internal_drums) { 686 snd_opl3_drum_switch(opl3, note, vel, 0, chan); 687 spin_unlock_irqrestore(&opl3->voice_lock, flags); 688 return; 689 } 690 /* this loop will hopefully kill all extra voices, because 691 they are grouped by the same channel and note values */ 692 for (voice = 0; voice < opl3->max_voices; voice++) { 693 vp = &opl3->voices[voice]; 694 if (vp->state > 0 && vp->chan == chan && vp->note == note) { 695 snd_opl3_kill_voice(opl3, voice); 696 } 697 } 698 } else { 699 /* remap OSS voices */ 700 if (chan->number < MAX_OPL3_VOICES) { 701 voice = snd_opl3_oss_map[chan->number]; 702 snd_opl3_kill_voice(opl3, voice); 703 } 704 } 705 spin_unlock_irqrestore(&opl3->voice_lock, flags); 704 706 } 705 707 … … 707 709 * key pressure change 708 710 */ 709 void snd_opl3_key_press(void *p, int note, int vel, s nd_midi_channel_t*chan)710 { 711 opl3_t*opl3;712 713 opl3 = p;714 #ifdef DEBUG_MIDI 715 snd_printk("Key pressure, ch#: %i, inst#: %i\n",716 chan->number, chan->midi_program);711 void snd_opl3_key_press(void *p, int note, int vel, struct snd_midi_channel *chan) 712 { 713 struct snd_opl3 *opl3; 714 715 opl3 = p; 716 #ifdef DEBUG_MIDI 717 snd_printk("Key pressure, ch#: %i, inst#: %i\n", 718 chan->number, chan->midi_program); 717 719 #endif 718 720 } … … 721 723 * terminate note 722 724 */ 723 void snd_opl3_terminate_note(void *p, int note, s nd_midi_channel_t*chan)724 { 725 opl3_t*opl3;726 727 opl3 = p;728 #ifdef DEBUG_MIDI 729 snd_printk("Terminate note, ch#: %i, inst#: %i\n",730 chan->number, chan->midi_program);731 #endif 732 } 733 734 static void snd_opl3_update_pitch( opl3_t*opl3, int voice)735 { 736 unsigned short reg_side;737 unsigned char voice_offset;738 unsigned short opl3_reg;739 740 unsigned char fnum, blocknum;741 742 snd_opl3_voice_t*vp;743 744 snd_assert(voice < MAX_OPL3_VOICES, return);745 746 vp = &opl3->voices[voice];747 if (vp->chan == NULL)748 return; /* not allocated? */749 750 if (voice < MAX_OPL2_VOICES) {751 /* Left register block for voices 0 .. 8 */752 reg_side = OPL3_LEFT;753 voice_offset = voice;754 } else {755 /* Right register block for voices 9 .. 17 */756 reg_side = OPL3_RIGHT;757 voice_offset = voice - MAX_OPL2_VOICES;758 }759 760 snd_opl3_calc_pitch(&fnum, &blocknum, vp->note, vp->chan);761 762 /* Set OPL3 FNUM_LOW register of requested voice */763 opl3_reg = reg_side | (OPL3_REG_FNUM_LOW + voice_offset);764 opl3->command(opl3, opl3_reg, fnum);765 766 vp->keyon_reg = blocknum;767 768 /* Set output sound flag */769 blocknum |= OPL3_KEYON_BIT;770 771 /* Set OPL3 KEYON_BLOCK register of requested voice */ 772 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset);773 opl3->command(opl3, opl3_reg, blocknum);774 775 vp->time = opl3->use_time++;725 void snd_opl3_terminate_note(void *p, int note, struct snd_midi_channel *chan) 726 { 727 struct snd_opl3 *opl3; 728 729 opl3 = p; 730 #ifdef DEBUG_MIDI 731 snd_printk("Terminate note, ch#: %i, inst#: %i\n", 732 chan->number, chan->midi_program); 733 #endif 734 } 735 736 static void snd_opl3_update_pitch(struct snd_opl3 *opl3, int voice) 737 { 738 unsigned short reg_side; 739 unsigned char voice_offset; 740 unsigned short opl3_reg; 741 742 unsigned char fnum, blocknum; 743 744 struct snd_opl3_voice *vp; 745 746 snd_assert(voice < MAX_OPL3_VOICES, return); 747 748 vp = &opl3->voices[voice]; 749 if (vp->chan == NULL) 750 return; /* not allocated? */ 751 752 if (voice < MAX_OPL2_VOICES) { 753 /* Left register block for voices 0 .. 8 */ 754 reg_side = OPL3_LEFT; 755 voice_offset = voice; 756 } else { 757 /* Right register block for voices 9 .. 17 */ 758 reg_side = OPL3_RIGHT; 759 voice_offset = voice - MAX_OPL2_VOICES; 760 } 761 762 snd_opl3_calc_pitch(&fnum, &blocknum, vp->note, vp->chan); 763 764 /* Set OPL3 FNUM_LOW register of requested voice */ 765 opl3_reg = reg_side | (OPL3_REG_FNUM_LOW + voice_offset); 766 opl3->command(opl3, opl3_reg, fnum); 767 768 vp->keyon_reg = blocknum; 769 770 /* Set output sound flag */ 771 blocknum |= OPL3_KEYON_BIT; 772 773 /* Set OPL3 KEYON_BLOCK register of requested voice */ 774 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset); 775 opl3->command(opl3, opl3_reg, blocknum); 776 777 vp->time = opl3->use_time++; 776 778 } 777 779 … … 779 781 * Update voice pitch controller 780 782 */ 781 static void snd_opl3_pitch_ctrl( opl3_t *opl3, snd_midi_channel_t*chan)782 { 783 int voice;784 snd_opl3_voice_t*vp;785 786 unsigned long flags;787 788 spin_lock_irqsave(&opl3->voice_lock, flags);789 790 if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) {791 for (voice = 0; voice < opl3->max_voices; voice++) {792 vp = &opl3->voices[voice];793 if (vp->state > 0 && vp->chan == chan) {794 snd_opl3_update_pitch(opl3, voice);795 }796 }797 } else {798 /* remap OSS voices */799 if (chan->number < MAX_OPL3_VOICES) {800 voice = snd_opl3_oss_map[chan->number]; 801 snd_opl3_update_pitch(opl3, voice);802 }803 }804 spin_unlock_irqrestore(&opl3->voice_lock, flags);783 static void snd_opl3_pitch_ctrl(struct snd_opl3 *opl3, struct snd_midi_channel *chan) 784 { 785 int voice; 786 struct snd_opl3_voice *vp; 787 788 unsigned long flags; 789 790 spin_lock_irqsave(&opl3->voice_lock, flags); 791 792 if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) { 793 for (voice = 0; voice < opl3->max_voices; voice++) { 794 vp = &opl3->voices[voice]; 795 if (vp->state > 0 && vp->chan == chan) { 796 snd_opl3_update_pitch(opl3, voice); 797 } 798 } 799 } else { 800 /* remap OSS voices */ 801 if (chan->number < MAX_OPL3_VOICES) { 802 voice = snd_opl3_oss_map[chan->number]; 803 snd_opl3_update_pitch(opl3, voice); 804 } 805 } 806 spin_unlock_irqrestore(&opl3->voice_lock, flags); 805 807 } 806 808 … … 809 811 * control events, not just the midi controllers 810 812 */ 811 void snd_opl3_control(void *p, int type, s nd_midi_channel_t*chan)812 { 813 opl3_t*opl3;814 815 opl3 = p;816 #ifdef DEBUG_MIDI 817 snd_printk("Controller, TYPE = %i, ch#: %i, inst#: %i\n",818 type, chan->number, chan->midi_program);819 #endif 820 821 switch (type) {822 case MIDI_CTL_MSB_MODWHEEL:823 if (chan->control[MIDI_CTL_MSB_MODWHEEL] > 63)824 opl3->drum_reg |= OPL3_VIBRATO_DEPTH;825 else 826 opl3->drum_reg &= ~OPL3_VIBRATO_DEPTH;827 opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION,828 opl3->drum_reg);829 break;830 case MIDI_CTL_E2_TREMOLO_DEPTH:831 if (chan->control[MIDI_CTL_E2_TREMOLO_DEPTH] > 63)832 opl3->drum_reg |= OPL3_TREMOLO_DEPTH;833 else 834 opl3->drum_reg &= ~OPL3_TREMOLO_DEPTH;835 opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION,836 opl3->drum_reg);837 break;838 case MIDI_CTL_PITCHBEND:839 snd_opl3_pitch_ctrl(opl3, chan);840 break;841 }813 void snd_opl3_control(void *p, int type, struct snd_midi_channel *chan) 814 { 815 struct snd_opl3 *opl3; 816 817 opl3 = p; 818 #ifdef DEBUG_MIDI 819 snd_printk("Controller, TYPE = %i, ch#: %i, inst#: %i\n", 820 type, chan->number, chan->midi_program); 821 #endif 822 823 switch (type) { 824 case MIDI_CTL_MSB_MODWHEEL: 825 if (chan->control[MIDI_CTL_MSB_MODWHEEL] > 63) 826 opl3->drum_reg |= OPL3_VIBRATO_DEPTH; 827 else 828 opl3->drum_reg &= ~OPL3_VIBRATO_DEPTH; 829 opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, 830 opl3->drum_reg); 831 break; 832 case MIDI_CTL_E2_TREMOLO_DEPTH: 833 if (chan->control[MIDI_CTL_E2_TREMOLO_DEPTH] > 63) 834 opl3->drum_reg |= OPL3_TREMOLO_DEPTH; 835 else 836 opl3->drum_reg &= ~OPL3_TREMOLO_DEPTH; 837 opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, 838 opl3->drum_reg); 839 break; 840 case MIDI_CTL_PITCHBEND: 841 snd_opl3_pitch_ctrl(opl3, chan); 842 break; 843 } 842 844 } 843 845 … … 845 847 * NRPN events 846 848 */ 847 void snd_opl3_nrpn(void *p, s nd_midi_channel_t*chan,848 snd_midi_channel_set_t *chset)849 { 850 opl3_t*opl3;851 852 opl3 = p;853 #ifdef DEBUG_MIDI 854 snd_printk("NRPN, ch#: %i, inst#: %i\n",855 chan->number, chan->midi_program);849 void snd_opl3_nrpn(void *p, struct snd_midi_channel *chan, 850 struct snd_midi_channel_set *chset) 851 { 852 struct snd_opl3 *opl3; 853 854 opl3 = p; 855 #ifdef DEBUG_MIDI 856 snd_printk("NRPN, ch#: %i, inst#: %i\n", 857 chan->number, chan->midi_program); 856 858 #endif 857 859 } … … 861 863 */ 862 864 void snd_opl3_sysex(void *p, unsigned char *buf, int len, 863 int parsed, snd_midi_channel_set_t *chset)864 { 865 opl3_t*opl3;866 867 opl3 = p;868 #ifdef DEBUG_MIDI 869 snd_printk("SYSEX\n");870 #endif 871 } 865 int parsed, struct snd_midi_channel_set *chset) 866 { 867 struct snd_opl3 *opl3; 868 869 opl3 = p; 870 #ifdef DEBUG_MIDI 871 snd_printk("SYSEX\n"); 872 #endif 873 } -
GPL/trunk/alsa-kernel/drivers/opl3/opl3_seq.c
r33 r34 23 23 */ 24 24 25 #define SNDRV_MAIN_OBJECT_FILE26 25 #include "opl3_voice.h" 26 #include <linux/init.h> 27 #include <linux/moduleparam.h> 27 28 #include <sound/initval.h> 28 29 … … 30 31 MODULE_LICENSE("GPL"); 31 32 MODULE_DESCRIPTION("ALSA driver for OPL3 FM synth"); 32 MODULE_CLASSES("{sound}");33 33 34 34 int use_internal_drums = 0; 35 MODULE_PARM(use_internal_drums, "i");35 //module_param(use_internal_drums, bool, 0444); 36 36 MODULE_PARM_DESC(use_internal_drums, "Enable internal OPL2/3 drums."); 37 37 38 int snd_opl3_synth_use_inc( opl3_t* opl3)39 { 40 if (!try_module_get(opl3->card->module))41 return -EFAULT;42 return 0;43 44 } 45 46 void snd_opl3_synth_use_dec( opl3_t* opl3)47 { 48 module_put(opl3->card->module);49 } 50 51 int snd_opl3_synth_setup( opl3_t* opl3)52 { 53 int idx;54 55 down(&opl3->access_mutex);56 if (opl3->used) {57 up(&opl3->access_mutex);58 return -EBUSY;59 }60 opl3->used++;61 up(&opl3->access_mutex);62 63 snd_opl3_reset(opl3);64 65 for (idx = 0; idx < MAX_OPL3_VOICES; idx++) {66 opl3->voices[idx].state = SNDRV_OPL3_ST_OFF;67 opl3->voices[idx].time = 0;68 opl3->voices[idx].keyon_reg = 0x00;69 }70 opl3->use_time = 0;71 opl3->connection_reg = 0x00;72 if (opl3->hardware >= OPL3_HW_OPL3) {73 /* Clear 4-op connections */74 opl3->command(opl3, OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT,75 opl3->connection_reg);76 opl3->max_voices = MAX_OPL3_VOICES;77 }78 return 0;79 } 80 81 void snd_opl3_synth_cleanup( opl3_t* opl3)82 { 83 unsigned long flags;84 85 /* Stop system timer */86 spin_lock_irqsave(&opl3->sys_timer_lock, flags);87 if (opl3->sys_timer_status) {88 del_timer(&opl3->tlist);89 opl3->sys_timer_status = 0;90 }91 spin_unlock_irqrestore(&opl3->sys_timer_lock, flags);92 93 snd_opl3_reset(opl3);94 down(&opl3->access_mutex);95 opl3->used--;96 up(&opl3->access_mutex);97 } 98 99 int snd_opl3_synth_use(void *private_data, snd_seq_port_subscribe_t* info)100 { 101 opl3_t*opl3 = private_data;102 int err;103 104 if ((err = snd_opl3_synth_setup(opl3)) < 0)105 return err;106 107 if (use_internal_drums) {108 /* Percussion mode */109 opl3->voices[6].state = opl3->voices[7].state = 110 opl3->voices[8].state = SNDRV_OPL3_ST_NOT_AVAIL;111 snd_opl3_load_drums(opl3);112 opl3->drum_reg = OPL3_PERCUSSION_ENABLE;113 opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, opl3->drum_reg);114 } else {115 opl3->drum_reg = 0x00;116 }117 118 if (info->sender.client != SNDRV_SEQ_CLIENT_SYSTEM) {119 if ((err = snd_opl3_synth_use_inc(opl3)) < 0)120 return err;121 }122 opl3->synth_mode = SNDRV_OPL3_MODE_SEQ;123 return 0;124 } 125 126 int snd_opl3_synth_unuse(void *private_data, snd_seq_port_subscribe_t* info)127 { 128 opl3_t*opl3 = private_data;129 130 snd_opl3_synth_cleanup(opl3);131 132 if (info->sender.client != SNDRV_SEQ_CLIENT_SYSTEM)133 snd_opl3_synth_use_dec(opl3);134 return 0;38 int snd_opl3_synth_use_inc(struct snd_opl3 * opl3) 39 { 40 if (!try_module_get(opl3->card->module)) 41 return -EFAULT; 42 return 0; 43 44 } 45 46 void snd_opl3_synth_use_dec(struct snd_opl3 * opl3) 47 { 48 module_put(opl3->card->module); 49 } 50 51 int snd_opl3_synth_setup(struct snd_opl3 * opl3) 52 { 53 int idx; 54 55 down(&opl3->access_mutex); 56 if (opl3->used) { 57 up(&opl3->access_mutex); 58 return -EBUSY; 59 } 60 opl3->used++; 61 up(&opl3->access_mutex); 62 63 snd_opl3_reset(opl3); 64 65 for (idx = 0; idx < MAX_OPL3_VOICES; idx++) { 66 opl3->voices[idx].state = SNDRV_OPL3_ST_OFF; 67 opl3->voices[idx].time = 0; 68 opl3->voices[idx].keyon_reg = 0x00; 69 } 70 opl3->use_time = 0; 71 opl3->connection_reg = 0x00; 72 if (opl3->hardware >= OPL3_HW_OPL3) { 73 /* Clear 4-op connections */ 74 opl3->command(opl3, OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT, 75 opl3->connection_reg); 76 opl3->max_voices = MAX_OPL3_VOICES; 77 } 78 return 0; 79 } 80 81 void snd_opl3_synth_cleanup(struct snd_opl3 * opl3) 82 { 83 unsigned long flags; 84 85 /* Stop system timer */ 86 spin_lock_irqsave(&opl3->sys_timer_lock, flags); 87 if (opl3->sys_timer_status) { 88 del_timer(&opl3->tlist); 89 opl3->sys_timer_status = 0; 90 } 91 spin_unlock_irqrestore(&opl3->sys_timer_lock, flags); 92 93 snd_opl3_reset(opl3); 94 down(&opl3->access_mutex); 95 opl3->used--; 96 up(&opl3->access_mutex); 97 } 98 99 static int snd_opl3_synth_use(void *private_data, struct snd_seq_port_subscribe * info) 100 { 101 struct snd_opl3 *opl3 = private_data; 102 int err; 103 104 if ((err = snd_opl3_synth_setup(opl3)) < 0) 105 return err; 106 107 if (use_internal_drums) { 108 /* Percussion mode */ 109 opl3->voices[6].state = opl3->voices[7].state = 110 opl3->voices[8].state = SNDRV_OPL3_ST_NOT_AVAIL; 111 snd_opl3_load_drums(opl3); 112 opl3->drum_reg = OPL3_PERCUSSION_ENABLE; 113 opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, opl3->drum_reg); 114 } else { 115 opl3->drum_reg = 0x00; 116 } 117 118 if (info->sender.client != SNDRV_SEQ_CLIENT_SYSTEM) { 119 if ((err = snd_opl3_synth_use_inc(opl3)) < 0) 120 return err; 121 } 122 opl3->synth_mode = SNDRV_OPL3_MODE_SEQ; 123 return 0; 124 } 125 126 static int snd_opl3_synth_unuse(void *private_data, struct snd_seq_port_subscribe * info) 127 { 128 struct snd_opl3 *opl3 = private_data; 129 130 snd_opl3_synth_cleanup(opl3); 131 132 if (info->sender.client != SNDRV_SEQ_CLIENT_SYSTEM) 133 snd_opl3_synth_use_dec(opl3); 134 return 0; 135 135 } 136 136 … … 138 138 * MIDI emulation operators 139 139 */ 140 s nd_midi_op_topl3_ops = {141 snd_opl3_note_on,142 snd_opl3_note_off,143 snd_opl3_key_press,144 snd_opl3_terminate_note,145 snd_opl3_control,146 snd_opl3_nrpn,147 snd_opl3_sysex,140 struct snd_midi_op opl3_ops = { 141 .note_on = snd_opl3_note_on, 142 .note_off = snd_opl3_note_off, 143 .key_press = snd_opl3_key_press, 144 .note_terminate = snd_opl3_terminate_note, 145 .control = snd_opl3_control, 146 .nrpn = snd_opl3_nrpn, 147 .sysex = snd_opl3_sysex, 148 148 }; 149 149 150 static int snd_opl3_synth_event_input(s nd_seq_event_t * ev, int direct,151 void *private_data, int atomic, int hop)152 { 153 opl3_t*opl3 = private_data;154 155 if (ev->type >= SNDRV_SEQ_EVENT_INSTR_BEGIN &&156 ev->type <= SNDRV_SEQ_EVENT_INSTR_CHANGE) {157 if (direct) {158 snd_seq_instr_event(&opl3->fm_ops, opl3->ilist, ev,159 opl3->seq_client, atomic, hop);160 }161 } else {162 snd_midi_process_event(&opl3_ops, ev, opl3->chset);163 }164 return 0;150 static int snd_opl3_synth_event_input(struct snd_seq_event * ev, int direct, 151 void *private_data, int atomic, int hop) 152 { 153 struct snd_opl3 *opl3 = private_data; 154 155 if (ev->type >= SNDRV_SEQ_EVENT_INSTR_BEGIN && 156 ev->type <= SNDRV_SEQ_EVENT_INSTR_CHANGE) { 157 if (direct) { 158 snd_seq_instr_event(&opl3->fm_ops, opl3->ilist, ev, 159 opl3->seq_client, atomic, hop); 160 } 161 } else { 162 snd_midi_process_event(&opl3_ops, ev, opl3->chset); 163 } 164 return 0; 165 165 } 166 166 … … 169 169 static void snd_opl3_synth_free_port(void *private_data) 170 170 { 171 opl3_t*opl3 = private_data;172 173 snd_midi_channel_free_set(opl3->chset);174 } 175 176 static int snd_opl3_synth_create_port( opl3_t* opl3)177 { 178 snd_seq_port_callback_tcallbacks;179 char name[32];180 int voices, opl_ver;181 182 voices = (opl3->hardware < OPL3_HW_OPL3) ?183 MAX_OPL2_VOICES : MAX_OPL3_VOICES;184 opl3->chset = snd_midi_channel_alloc_set(16);185 if (opl3->chset == NULL)186 return -ENOMEM;187 opl3->chset->private_data = opl3;188 189 memset(&callbacks, 0, sizeof(callbacks));190 callbacks.owner = THIS_MODULE;191 callbacks.use = snd_opl3_synth_use;192 callbacks.unuse = snd_opl3_synth_unuse;193 callbacks.event_input = snd_opl3_synth_event_input;194 callbacks.private_free = snd_opl3_synth_free_port;195 callbacks.private_data = opl3;196 197 opl_ver = (opl3->hardware & OPL3_HW_MASK) >> 8;198 sprintf(name, "OPL%i FM Port", opl_ver);199 200 opl3->chset->client = opl3->seq_client;201 opl3->chset->port = snd_seq_event_port_attach(opl3->seq_client, &callbacks,202 SNDRV_SEQ_PORT_CAP_WRITE |203 SNDRV_SEQ_PORT_CAP_SUBS_WRITE,204 SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC |205 SNDRV_SEQ_PORT_TYPE_MIDI_GM |206 SNDRV_SEQ_PORT_TYPE_SYNTH,207 16, voices,208 name);209 if (opl3->chset->port < 0) {210 snd_midi_channel_free_set(opl3->chset);211 return opl3->chset->port;212 }213 return 0;171 struct snd_opl3 *opl3 = private_data; 172 173 snd_midi_channel_free_set(opl3->chset); 174 } 175 176 static int snd_opl3_synth_create_port(struct snd_opl3 * opl3) 177 { 178 struct snd_seq_port_callback callbacks; 179 char name[32]; 180 int voices, opl_ver; 181 182 voices = (opl3->hardware < OPL3_HW_OPL3) ? 183 MAX_OPL2_VOICES : MAX_OPL3_VOICES; 184 opl3->chset = snd_midi_channel_alloc_set(16); 185 if (opl3->chset == NULL) 186 return -ENOMEM; 187 opl3->chset->private_data = opl3; 188 189 memset(&callbacks, 0, sizeof(callbacks)); 190 callbacks.owner = THIS_MODULE; 191 callbacks.use = snd_opl3_synth_use; 192 callbacks.unuse = snd_opl3_synth_unuse; 193 callbacks.event_input = snd_opl3_synth_event_input; 194 callbacks.private_free = snd_opl3_synth_free_port; 195 callbacks.private_data = opl3; 196 197 opl_ver = (opl3->hardware & OPL3_HW_MASK) >> 8; 198 sprintf(name, "OPL%i FM Port", opl_ver); 199 200 opl3->chset->client = opl3->seq_client; 201 opl3->chset->port = snd_seq_event_port_attach(opl3->seq_client, &callbacks, 202 SNDRV_SEQ_PORT_CAP_WRITE | 203 SNDRV_SEQ_PORT_CAP_SUBS_WRITE, 204 SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | 205 SNDRV_SEQ_PORT_TYPE_MIDI_GM | 206 SNDRV_SEQ_PORT_TYPE_SYNTH, 207 16, voices, 208 name); 209 if (opl3->chset->port < 0) { 210 snd_midi_channel_free_set(opl3->chset); 211 return opl3->chset->port; 212 } 213 return 0; 214 214 } 215 215 216 216 /* ------------------------------ */ 217 217 218 static int snd_opl3_seq_new_device(s nd_seq_device_t*dev)219 { 220 opl3_t*opl3;221 int client;222 snd_seq_client_callback_tcallbacks;223 snd_seq_client_info_tcinfo;224 int opl_ver;225 226 opl3 = *(opl3_t**)SNDRV_SEQ_DEVICE_ARGPTR(dev);227 if (opl3 == NULL)228 return -EINVAL;229 230 spin_lock_init(&opl3->voice_lock);231 232 opl3->seq_client = -1;233 234 /* allocate new client */235 memset(&callbacks, 0, sizeof(callbacks));236 callbacks.private_data = opl3;237 callbacks.allow_output = callbacks.allow_input = 1;238 client = opl3->seq_client =239 snd_seq_create_kernel_client(opl3->card, opl3->seq_dev_num, &callbacks);240 if (client < 0)241 return client;242 243 /* change name of client */244 memset(&cinfo, 0, sizeof(cinfo));245 cinfo.client = client;246 cinfo.type = KERNEL_CLIENT;247 opl_ver = (opl3->hardware & OPL3_HW_MASK) >> 8;248 sprintf(cinfo.name, "OPL%i FM synth", opl_ver);249 snd_seq_kernel_client_ctl(client, SNDRV_SEQ_IOCTL_SET_CLIENT_INFO, &cinfo);250 251 snd_opl3_synth_create_port(opl3);252 253 /* initialize instrument list */254 opl3->ilist = snd_seq_instr_list_new();255 if (opl3->ilist == NULL) {256 snd_seq_delete_kernel_client(client);257 opl3->seq_client = -1;258 return -ENOMEM;259 }260 opl3->ilist->flags = SNDRV_SEQ_INSTR_FLG_DIRECT;261 snd_seq_fm_init(&opl3->fm_ops, NULL);262 263 /* setup system timer */264 init_timer(&opl3->tlist);265 opl3->tlist.function = snd_opl3_timer_func;266 opl3->tlist.data = (unsigned long) opl3;267 spin_lock_init(&opl3->sys_timer_lock);268 opl3->sys_timer_status = 0;218 static int snd_opl3_seq_new_device(struct snd_seq_device *dev) 219 { 220 struct snd_opl3 *opl3; 221 int client; 222 struct snd_seq_client_callback callbacks; 223 struct snd_seq_client_info cinfo; 224 int opl_ver; 225 226 opl3 = *(struct snd_opl3 **)SNDRV_SEQ_DEVICE_ARGPTR(dev); 227 if (opl3 == NULL) 228 return -EINVAL; 229 230 spin_lock_init(&opl3->voice_lock); 231 232 opl3->seq_client = -1; 233 234 /* allocate new client */ 235 memset(&callbacks, 0, sizeof(callbacks)); 236 callbacks.private_data = opl3; 237 callbacks.allow_output = callbacks.allow_input = 1; 238 client = opl3->seq_client = 239 snd_seq_create_kernel_client(opl3->card, opl3->seq_dev_num, &callbacks); 240 if (client < 0) 241 return client; 242 243 /* change name of client */ 244 memset(&cinfo, 0, sizeof(cinfo)); 245 cinfo.client = client; 246 cinfo.type = KERNEL_CLIENT; 247 opl_ver = (opl3->hardware & OPL3_HW_MASK) >> 8; 248 sprintf(cinfo.name, "OPL%i FM synth", opl_ver); 249 snd_seq_kernel_client_ctl(client, SNDRV_SEQ_IOCTL_SET_CLIENT_INFO, &cinfo); 250 251 snd_opl3_synth_create_port(opl3); 252 253 /* initialize instrument list */ 254 opl3->ilist = snd_seq_instr_list_new(); 255 if (opl3->ilist == NULL) { 256 snd_seq_delete_kernel_client(client); 257 opl3->seq_client = -1; 258 return -ENOMEM; 259 } 260 opl3->ilist->flags = SNDRV_SEQ_INSTR_FLG_DIRECT; 261 snd_seq_fm_init(&opl3->fm_ops, NULL); 262 263 /* setup system timer */ 264 init_timer(&opl3->tlist); 265 opl3->tlist.function = snd_opl3_timer_func; 266 opl3->tlist.data = (unsigned long) opl3; 267 spin_lock_init(&opl3->sys_timer_lock); 268 opl3->sys_timer_status = 0; 269 269 270 270 #ifdef CONFIG_SND_SEQUENCER_OSS 271 snd_opl3_init_seq_oss(opl3, cinfo.name);271 snd_opl3_init_seq_oss(opl3, cinfo.name); 272 272 #endif 273 return 0;274 } 275 276 static int snd_opl3_seq_delete_device(s nd_seq_device_t*dev)277 { 278 opl3_t*opl3;279 280 opl3 = *(opl3_t**)SNDRV_SEQ_DEVICE_ARGPTR(dev);281 if (opl3 == NULL)282 return -EINVAL;273 return 0; 274 } 275 276 static int snd_opl3_seq_delete_device(struct snd_seq_device *dev) 277 { 278 struct snd_opl3 *opl3; 279 280 opl3 = *(struct snd_opl3 **)SNDRV_SEQ_DEVICE_ARGPTR(dev); 281 if (opl3 == NULL) 282 return -EINVAL; 283 283 284 284 #ifdef CONFIG_SND_SEQUENCER_OSS 285 snd_opl3_free_seq_oss(opl3);285 snd_opl3_free_seq_oss(opl3); 286 286 #endif 287 if (opl3->seq_client >= 0) {288 snd_seq_delete_kernel_client(opl3->seq_client);289 opl3->seq_client = -1;290 }291 if (opl3->ilist)292 snd_seq_instr_list_free(&opl3->ilist);293 return 0;287 if (opl3->seq_client >= 0) { 288 snd_seq_delete_kernel_client(opl3->seq_client); 289 opl3->seq_client = -1; 290 } 291 if (opl3->ilist) 292 snd_seq_instr_list_free(&opl3->ilist); 293 return 0; 294 294 } 295 295 296 296 static int __init alsa_opl3_seq_init(void) 297 297 { 298 static snd_seq_dev_ops_tops =299 {300 snd_opl3_seq_new_device,301 snd_opl3_seq_delete_device302 };303 304 return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_OPL3, &ops,305 sizeof(opl3_t*));298 static struct snd_seq_dev_ops ops = 299 { 300 snd_opl3_seq_new_device, 301 snd_opl3_seq_delete_device 302 }; 303 304 return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_OPL3, &ops, 305 sizeof(struct snd_opl3 *)); 306 306 } 307 307 308 308 static void __exit alsa_opl3_seq_exit(void) 309 309 { 310 snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_OPL3);310 snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_OPL3); 311 311 } 312 312
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