sound/isa/cmi8328.c

   1 /*
   2  * Driver for C-Media CMI8328-based soundcards, such as AudioExcel AV500
   3  * Copyright (c) 2012 Ondrej Zary
   4  *
   5  * AudioExcel AV500 card consists of:
   6  *  - CMI8328 - main chip (SB Pro emulation, gameport, OPL3, MPU401, CD-ROM)
   7  *  - CS4231A - WSS codec
   8  *  - Dream SAM9233+GMS950400+RAM+ROM: Wavetable MIDI, connected to MPU401
   9  */
  10
  11 #include <linux/init.h>
  12 #include <linux/isa.h>
  13 #include <linux/module.h>
  14 #include <linux/gameport.h>
  15 #include <asm/dma.h>
  16 #include <sound/core.h>
  17 #include <sound/wss.h>
  18 #include <sound/opl3.h>
  19 #include <sound/mpu401.h>
  20 #define SNDRV_LEGACY_FIND_FREE_IOPORT
  21 #define SNDRV_LEGACY_FIND_FREE_IRQ
  22 #define SNDRV_LEGACY_FIND_FREE_DMA
  23 #include <sound/initval.h>
  24
  25 MODULE_AUTHOR("Ondrej Zary <linux@rainbow-software.org>");
  26 MODULE_DESCRIPTION("C-Media CMI8328");
  27 MODULE_LICENSE("GPL");
  28
  29 #if defined(CONFIG_GAMEPORT) || defined(CONFIG_GAMEPORT_MODULE)
  30 #define SUPPORT_JOYSTICK 1
  31 #endif
  32
  33 /* I/O port is configured by jumpers on the card to one of these */
  34 static int cmi8328_ports[] = { 0x530, 0xe80, 0xf40, 0x604 };
  35 #define CMI8328_MAX     ARRAY_SIZE(cmi8328_ports)
  36
  37 static int index[CMI8328_MAX] =     {[0 ... (CMI8328_MAX-1)] = -1};
  38 static char *id[CMI8328_MAX] =      {[0 ... (CMI8328_MAX-1)] = NULL};
  39 static long port[CMI8328_MAX] =     {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_PORT};
  40 static int irq[CMI8328_MAX] =       {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_IRQ};
  41 static int dma1[CMI8328_MAX] =      {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_DMA};
  42 static int dma2[CMI8328_MAX] =      {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_DMA};
  43 static long mpuport[CMI8328_MAX] =  {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_PORT};
  44 static int mpuirq[CMI8328_MAX] =    {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_IRQ};
  45 #ifdef SUPPORT_JOYSTICK
  46 static bool gameport[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = true};
  47 #endif
  48
  49 module_param_array(index, int, NULL, 0444);
  50 MODULE_PARM_DESC(index, "Index value for CMI8328 soundcard.");
  51 module_param_array(id, charp, NULL, 0444);
  52 MODULE_PARM_DESC(id, "ID string for CMI8328 soundcard.");
  53
  54 module_param_array(port, long, NULL, 0444);
  55 MODULE_PARM_DESC(port, "Port # for CMI8328 driver.");
  56 module_param_array(irq, int, NULL, 0444);
  57 MODULE_PARM_DESC(irq, "IRQ # for CMI8328 driver.");
  58 module_param_array(dma1, int, NULL, 0444);
  59 MODULE_PARM_DESC(dma1, "DMA1 for CMI8328 driver.");
  60 module_param_array(dma2, int, NULL, 0444);
  61 MODULE_PARM_DESC(dma2, "DMA2 for CMI8328 driver.");
  62
  63 module_param_array(mpuport, long, NULL, 0444);
  64 MODULE_PARM_DESC(mpuport, "MPU-401 port # for CMI8328 driver.");
  65 module_param_array(mpuirq, int, NULL, 0444);
  66 MODULE_PARM_DESC(mpuirq, "IRQ # for CMI8328 MPU-401 port.");
  67 #ifdef SUPPORT_JOYSTICK
  68 module_param_array(gameport, bool, NULL, 0444);
  69 MODULE_PARM_DESC(gameport, "Enable gameport.");
  70 #endif
  71
  72 struct snd_cmi8328 {
  73         u16 port;
  74         u8 cfg[3];
  75         u8 wss_cfg;
  76         struct snd_card *card;
  77         struct snd_wss *wss;
  78 #ifdef SUPPORT_JOYSTICK
  79         struct gameport *gameport;
  80 #endif
  81 };
  82
  83 /* CMI8328 configuration registers */
  84 #define CFG1 0x61
  85 #define CFG1_SB_DISABLE (1 << 0)
  86 #define CFG1_GAMEPORT   (1 << 1)
  87 /*
  88  * bit 0:    SB: 0=enabled, 1=disabled
  89  * bit 1:    gameport: 0=disabled, 1=enabled
  90  * bits 2-4: SB IRQ: 001=3, 010=5, 011=7, 100=9, 101=10, 110=11
  91  * bits 5-6: SB DMA: 00=disabled (when SB disabled), 01=DMA0, 10=DMA1, 11=DMA3
  92  * bit 7:    SB port: 0=0x220, 1=0x240
  93  */
  94 #define CFG2 0x62
  95 #define CFG2_MPU_ENABLE (1 << 2)
  96 /*
  97  * bits 0-1: CD-ROM mode: 00=disabled, 01=Panasonic, 10=Sony/Mitsumi/Wearnes,
  98                           11=IDE
  99  * bit 2:    MPU401: 0=disabled, 1=enabled
 100  * bits 3-4: MPU401 IRQ: 00=3, 01=5, 10=7, 11=9,
 101  * bits 5-7: MPU401 port: 000=0x300, 001=0x310, 010=0x320, 011=0x330, 100=0x332,
 102                           101=0x334, 110=0x336
 103  */
 104 #define CFG3 0x63
 105 /*
 106  * bits 0-2: CD-ROM IRQ: 000=disabled, 001=3, 010=5, 011=7, 100=9, 101=10,
 107                          110=11
 108  * bits 3-4: CD-ROM DMA: 00=disabled, 01=DMA0, 10=DMA1, 11=DMA3
 109  * bits 5-7: CD-ROM port: 000=0x300, 001=0x310, 010=0x320, 011=0x330, 100=0x340,
 110                           101=0x350, 110=0x360, 111=0x370
 111  */
 112
 113 static u8 snd_cmi8328_cfg_read(u16 port, u8 reg)
 114 {
 115         outb(0x43, port + 3);
 116         outb(0x21, port + 3);
 117         outb(reg, port + 3);
 118         return inb(port);
 119 }
 120
 121 static void snd_cmi8328_cfg_write(u16 port, u8 reg, u8 val)
 122 {
 123         outb(0x43, port + 3);
 124         outb(0x21, port + 3);
 125         outb(reg, port + 3);
 126         outb(val, port + 3);    /* yes, value goes to the same port as index */
 127 }
 128
 129 #ifdef CONFIG_PM
 130 static void snd_cmi8328_cfg_save(u16 port, u8 cfg[])
 131 {
 132         cfg[0] = snd_cmi8328_cfg_read(port, CFG1);
 133         cfg[1] = snd_cmi8328_cfg_read(port, CFG2);
 134         cfg[2] = snd_cmi8328_cfg_read(port, CFG3);
 135 }
 136
 137 static void snd_cmi8328_cfg_restore(u16 port, u8 cfg[])
 138 {
 139         snd_cmi8328_cfg_write(port, CFG1, cfg[0]);
 140         snd_cmi8328_cfg_write(port, CFG2, cfg[1]);
 141         snd_cmi8328_cfg_write(port, CFG3, cfg[2]);
 142 }
 143 #endif /* CONFIG_PM */
 144
 145 static int snd_cmi8328_mixer(struct snd_wss *chip)
 146 {
 147         struct snd_card *card;
 148         struct snd_ctl_elem_id id1, id2;
 149         int err;
 150
 151         card = chip->card;
 152
 153         memset(&id1, 0, sizeof(id1));
 154         memset(&id2, 0, sizeof(id2));
 155         id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 156         /* rename AUX0 switch to CD */
 157         strcpy(id1.name, "Aux Playback Switch");
 158         strcpy(id2.name, "CD Playback Switch");
 159         err = snd_ctl_rename_id(card, &id1, &id2);
 160         if (err < 0) {
 161                 snd_printk(KERN_ERR "error renaming control\n");
 162                 return err;
 163         }
 164         /* rename AUX0 volume to CD */
 165         strcpy(id1.name, "Aux Playback Volume");
 166         strcpy(id2.name, "CD Playback Volume");
 167         err = snd_ctl_rename_id(card, &id1, &id2);
 168         if (err < 0) {
 169                 snd_printk(KERN_ERR "error renaming control\n");
 170                 return err;
 171         }
 172         /* rename AUX1 switch to Synth */
 173         strcpy(id1.name, "Aux Playback Switch");
 174         id1.index = 1;
 175         strcpy(id2.name, "Synth Playback Switch");
 176         err = snd_ctl_rename_id(card, &id1, &id2);
 177         if (err < 0) {
 178                 snd_printk(KERN_ERR "error renaming control\n");
 179                 return err;
 180         }
 181         /* rename AUX1 volume to Synth */
 182         strcpy(id1.name, "Aux Playback Volume");
 183         id1.index = 1;
 184         strcpy(id2.name, "Synth Playback Volume");
 185         err = snd_ctl_rename_id(card, &id1, &id2);
 186         if (err < 0) {
 187                 snd_printk(KERN_ERR "error renaming control\n");
 188                 return err;
 189         }
 190
 191         return 0;
 192 }
 193
 194 /* find index of an item in "-1"-ended array */
 195 int array_find(int array[], int item)
 196 {
 197         int i;
 198
 199         for (i = 0; array[i] != -1; i++)
 200                 if (array[i] == item)
 201                         return i;
 202
 203         return -1;
 204 }
 205 /* the same for long */
 206 int array_find_l(long array[], long item)
 207 {
 208         int i;
 209
 210         for (i = 0; array[i] != -1; i++)
 211                 if (array[i] == item)
 212                         return i;
 213
 214         return -1;
 215 }
 216
 217 static int snd_cmi8328_probe(struct device *pdev, unsigned int ndev)
 218 {
 219         struct snd_card *card;
 220         struct snd_opl3 *opl3;
 221         struct snd_cmi8328 *cmi;
 222 #ifdef SUPPORT_JOYSTICK
 223         struct resource *res;
 224 #endif
 225         int err, pos;
 226         static long mpu_ports[] = { 0x330, 0x300, 0x310, 0x320, 0x332, 0x334,
 227                                    0x336, -1 };
 228         static u8 mpu_port_bits[] = { 3, 0, 1, 2, 4, 5, 6 };
 229         static int mpu_irqs[] = { 9, 7, 5, 3, -1 };
 230         static u8 mpu_irq_bits[] = { 3, 2, 1, 0 };
 231         static int irqs[] = { 9, 10, 11, 7, -1 };
 232         static u8 irq_bits[] = { 2, 3, 4, 1 };
 233         static int dma1s[] = { 3, 1, 0, -1 };
 234         static u8 dma_bits[] = { 3, 2, 1 };
 235         static int dma2s[][2] = { {1, -1}, {0, -1}, {-1, -1}, {0, -1} };
 236         u16 port = cmi8328_ports[ndev];
 237         u8 val;
 238
 239         /* 0xff is invalid configuration (but settable - hope it isn't set) */
 240         if (snd_cmi8328_cfg_read(port, CFG1) == 0xff)
 241                 return -ENODEV;
 242         /* the SB disable bit must NEVER EVER be cleared or the WSS dies */
 243         snd_cmi8328_cfg_write(port, CFG1, CFG1_SB_DISABLE);
 244         if (snd_cmi8328_cfg_read(port, CFG1) != CFG1_SB_DISABLE)
 245                 return -ENODEV;
 246         /* disable everything first */
 247         snd_cmi8328_cfg_write(port, CFG2, 0);   /* disable CDROM and MPU401 */
 248         snd_cmi8328_cfg_write(port, CFG3, 0);   /* disable CDROM IRQ and DMA */
 249
 250         if (irq[ndev] == SNDRV_AUTO_IRQ) {
 251                 irq[ndev] = snd_legacy_find_free_irq(irqs);
 252                 if (irq[ndev] < 0) {
 253                         snd_printk(KERN_ERR "unable to find a free IRQ\n");
 254                         return -EBUSY;
 255                 }
 256         }
 257         if (dma1[ndev] == SNDRV_AUTO_DMA) {
 258                 dma1[ndev] = snd_legacy_find_free_dma(dma1s);
 259                 if (dma1[ndev] < 0) {
 260                         snd_printk(KERN_ERR "unable to find a free DMA1\n");
 261                         return -EBUSY;
 262                 }
 263         }
 264         if (dma2[ndev] == SNDRV_AUTO_DMA) {
 265                 dma2[ndev] = snd_legacy_find_free_dma(dma2s[dma1[ndev] % 4]);
 266                 if (dma2[ndev] < 0) {
 267                         snd_printk(KERN_WARNING "unable to find a free DMA2, full-duplex will not work\n");
 268                         dma2[ndev] = -1;
 269                 }
 270         }
 271         /* configure WSS IRQ... */
 272         pos = array_find(irqs, irq[ndev]);
 273         if (pos < 0) {
 274                 snd_printk(KERN_ERR "invalid IRQ %d\n", irq[ndev]);
 275                 return -EINVAL;
 276         }
 277         val = irq_bits[pos] << 3;
 278         /* ...and DMA... */
 279         pos = array_find(dma1s, dma1[ndev]);
 280         if (pos < 0) {
 281                 snd_printk(KERN_ERR "invalid DMA1 %d\n", dma1[ndev]);
 282                 return -EINVAL;
 283         }
 284         val |= dma_bits[pos];
 285         /* ...and DMA2 */
 286         if (dma2[ndev] >= 0 && dma1[ndev] != dma2[ndev]) {
 287                 pos = array_find(dma2s[dma1[ndev]], dma2[ndev]);
 288                 if (pos < 0) {
 289                         snd_printk(KERN_ERR "invalid DMA2 %d\n", dma2[ndev]);
 290                         return -EINVAL;
 291                 }
 292                 val |= 0x04; /* enable separate capture DMA */
 293         }
 294         outb(val, port);
 295
 296         err = snd_card_new(pdev, index[ndev], id[ndev], THIS_MODULE,
 297                            sizeof(struct snd_cmi8328), &card);
 298         if (err < 0)
 299                 return err;
 300         cmi = card->private_data;
 301         cmi->card = card;
 302         cmi->port = port;
 303         cmi->wss_cfg = val;
 304
 305         err = snd_wss_create(card, port + 4, -1, irq[ndev], dma1[ndev],
 306                         dma2[ndev], WSS_HW_DETECT, 0, &cmi->wss);
 307         if (err < 0)
 308                 goto error;
 309
 310         err = snd_wss_pcm(cmi->wss, 0);
 311         if (err < 0)
 312                 goto error;
 313
 314         err = snd_wss_mixer(cmi->wss);
 315         if (err < 0)
 316                 goto error;
 317         err = snd_cmi8328_mixer(cmi->wss);
 318         if (err < 0)
 319                 goto error;
 320
 321         if (snd_wss_timer(cmi->wss, 0) < 0)
 322                 snd_printk(KERN_WARNING "error initializing WSS timer\n");
 323
 324         if (mpuport[ndev] == SNDRV_AUTO_PORT) {
 325                 mpuport[ndev] = snd_legacy_find_free_ioport(mpu_ports, 2);
 326                 if (mpuport[ndev] < 0)
 327                         snd_printk(KERN_ERR "unable to find a free MPU401 port\n");
 328         }
 329         if (mpuirq[ndev] == SNDRV_AUTO_IRQ) {
 330                 mpuirq[ndev] = snd_legacy_find_free_irq(mpu_irqs);
 331                 if (mpuirq[ndev] < 0)
 332                         snd_printk(KERN_ERR "unable to find a free MPU401 IRQ\n");
 333         }
 334         /* enable and configure MPU401 */
 335         if (mpuport[ndev] > 0 && mpuirq[ndev] > 0) {
 336                 val = CFG2_MPU_ENABLE;
 337                 pos = array_find_l(mpu_ports, mpuport[ndev]);
 338                 if (pos < 0)
 339                         snd_printk(KERN_WARNING "invalid MPU401 port 0x%lx\n",
 340                                                                 mpuport[ndev]);
 341                 else {
 342                         val |= mpu_port_bits[pos] << 5;
 343                         pos = array_find(mpu_irqs, mpuirq[ndev]);
 344                         if (pos < 0)
 345                                 snd_printk(KERN_WARNING "invalid MPU401 IRQ %d\n",
 346                                                                 mpuirq[ndev]);
 347                         else {
 348                                 val |= mpu_irq_bits[pos] << 3;
 349                                 snd_cmi8328_cfg_write(port, CFG2, val);
 350                                 if (snd_mpu401_uart_new(card, 0,
 351                                                 MPU401_HW_MPU401, mpuport[ndev],
 352                                                 0, mpuirq[ndev], NULL) < 0)
 353                                         snd_printk(KERN_ERR "error initializing MPU401\n");
 354                         }
 355                 }
 356         }
 357         /* OPL3 is hardwired to 0x388 and cannot be disabled */
 358         if (snd_opl3_create(card, 0x388, 0x38a, OPL3_HW_AUTO, 0, &opl3) < 0)
 359                 snd_printk(KERN_ERR "error initializing OPL3\n");
 360         else
 361                 if (snd_opl3_hwdep_new(opl3, 0, 1, NULL) < 0)
 362                         snd_printk(KERN_WARNING "error initializing OPL3 hwdep\n");
 363
 364         strcpy(card->driver, "CMI8328");
 365         strcpy(card->shortname, "C-Media CMI8328");
 366         sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d,%d",
 367                 card->shortname, cmi->wss->port, irq[ndev], dma1[ndev],
 368                 (dma2[ndev] >= 0) ? dma2[ndev] : dma1[ndev]);
 369
 370         dev_set_drvdata(pdev, card);
 371         err = snd_card_register(card);
 372         if (err < 0)
 373                 goto error;
 374 #ifdef SUPPORT_JOYSTICK
 375         if (!gameport[ndev])
 376                 return 0;
 377         /* gameport is hardwired to 0x200 */
 378         res = request_region(0x200, 8, "CMI8328 gameport");
 379         if (!res)
 380                 snd_printk(KERN_WARNING "unable to allocate gameport I/O port\n");
 381         else {
 382                 struct gameport *gp = cmi->gameport = gameport_allocate_port();
 383                 if (!cmi->gameport)
 384                         release_and_free_resource(res);
 385                 else {
 386                         gameport_set_name(gp, "CMI8328 Gameport");
 387                         gameport_set_phys(gp, "%s/gameport0", dev_name(pdev));
 388                         gameport_set_dev_parent(gp, pdev);
 389                         gp->io = 0x200;
 390                         gameport_set_port_data(gp, res);
 391                         /* Enable gameport */
 392                         snd_cmi8328_cfg_write(port, CFG1,
 393                                         CFG1_SB_DISABLE | CFG1_GAMEPORT);
 394                         gameport_register_port(gp);
 395                 }
 396         }
 397 #endif
 398         return 0;
 399 error:
 400         snd_card_free(card);
 401
 402         return err;
 403 }
 404
 405 static int snd_cmi8328_remove(struct device *pdev, unsigned int dev)
 406 {
 407         struct snd_card *card = dev_get_drvdata(pdev);
 408         struct snd_cmi8328 *cmi = card->private_data;
 409
 410 #ifdef SUPPORT_JOYSTICK
 411         if (cmi->gameport) {
 412                 struct resource *res = gameport_get_port_data(cmi->gameport);
 413                 gameport_unregister_port(cmi->gameport);
 414                 release_and_free_resource(res);
 415         }
 416 #endif
 417         /* disable everything */
 418         snd_cmi8328_cfg_write(cmi->port, CFG1, CFG1_SB_DISABLE);
 419         snd_cmi8328_cfg_write(cmi->port, CFG2, 0);
 420         snd_cmi8328_cfg_write(cmi->port, CFG3, 0);
 421         snd_card_free(card);
 422         return 0;
 423 }
 424
 425 #ifdef CONFIG_PM
 426 static int snd_cmi8328_suspend(struct device *pdev, unsigned int n,
 427                                 pm_message_t state)
 428 {
 429         struct snd_card *card = dev_get_drvdata(pdev);
 430         struct snd_cmi8328 *cmi;
 431
 432         if (!card)      /* ignore absent devices */
 433                 return 0;
 434         cmi = card->private_data;
 435         snd_cmi8328_cfg_save(cmi->port, cmi->cfg);
 436         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 437         snd_pcm_suspend_all(cmi->wss->pcm);
 438         cmi->wss->suspend(cmi->wss);
 439
 440         return 0;
 441 }
 442
 443 static int snd_cmi8328_resume(struct device *pdev, unsigned int n)
 444 {
 445         struct snd_card *card = dev_get_drvdata(pdev);
 446         struct snd_cmi8328 *cmi;
 447
 448         if (!card)      /* ignore absent devices */
 449                 return 0;
 450         cmi = card->private_data;
 451         snd_cmi8328_cfg_restore(cmi->port, cmi->cfg);
 452         outb(cmi->wss_cfg, cmi->port);
 453         cmi->wss->resume(cmi->wss);
 454         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 455
 456         return 0;
 457 }
 458 #endif
 459
 460 static struct isa_driver snd_cmi8328_driver = {
 461         .probe          = snd_cmi8328_probe,
 462         .remove         = snd_cmi8328_remove,
 463 #ifdef CONFIG_PM
 464         .suspend        = snd_cmi8328_suspend,
 465         .resume         = snd_cmi8328_resume,
 466 #endif
 467         .driver         = {
 468                 .name   = "cmi8328"
 469         },
 470 };
 471
 472 static int __init alsa_card_cmi8328_init(void)
 473 {
 474         return isa_register_driver(&snd_cmi8328_driver, CMI8328_MAX);
 475 }
 476
 477 static void __exit alsa_card_cmi8328_exit(void)
 478 {
 479         isa_unregister_driver(&snd_cmi8328_driver);
 480 }
 481
 482 module_init(alsa_card_cmi8328_init)
 483 module_exit(alsa_card_cmi8328_exit)