sound/isa/sb/sb8.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible
   4  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   5  */
   6
   7 #include <linux/init.h>
   8 #include <linux/err.h>
   9 #include <linux/isa.h>
  10 #include <linux/ioport.h>
  11 #include <linux/module.h>
  12 #include <sound/core.h>
  13 #include <sound/sb.h>
  14 #include <sound/opl3.h>
  15 #include <sound/initval.h>
  16
  17 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  18 MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
  19 MODULE_LICENSE("GPL");
  20 MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}");
  21
  22 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  23 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  24 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
  25 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260 */
  26 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
  27 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3 */
  28
  29 module_param_array(index, int, NULL, 0444);
  30 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
  31 module_param_array(id, charp, NULL, 0444);
  32 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
  33 module_param_array(enable, bool, NULL, 0444);
  34 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
  35 module_param_hw_array(port, long, ioport, NULL, 0444);
  36 MODULE_PARM_DESC(port, "Port # for SB8 driver.");
  37 module_param_hw_array(irq, int, irq, NULL, 0444);
  38 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
  39 module_param_hw_array(dma8, int, dma, NULL, 0444);
  40 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
  41
  42 struct snd_sb8 {
  43         struct resource *fm_res;        /* used to block FM i/o region for legacy cards */
  44         struct snd_sb *chip;
  45 };
  46
  47 static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id)
  48 {
  49         struct snd_sb *chip = dev_id;
  50
  51         if (chip->open & SB_OPEN_PCM) {
  52                 return snd_sb8dsp_interrupt(chip);
  53         } else {
  54                 return snd_sb8dsp_midi_interrupt(chip);
  55         }
  56 }
  57
  58 static void snd_sb8_free(struct snd_card *card)
  59 {
  60         struct snd_sb8 *acard = card->private_data;
  61
  62         if (acard == NULL)
  63                 return;
  64         release_and_free_resource(acard->fm_res);
  65 }
  66
  67 static int snd_sb8_match(struct device *pdev, unsigned int dev)
  68 {
  69         if (!enable[dev])
  70                 return 0;
  71         if (irq[dev] == SNDRV_AUTO_IRQ) {
  72                 dev_err(pdev, "please specify irq\n");
  73                 return 0;
  74         }
  75         if (dma8[dev] == SNDRV_AUTO_DMA) {
  76                 dev_err(pdev, "please specify dma8\n");
  77                 return 0;
  78         }
  79         return 1;
  80 }
  81
  82 static int snd_sb8_probe(struct device *pdev, unsigned int dev)
  83 {
  84         struct snd_sb *chip;
  85         struct snd_card *card;
  86         struct snd_sb8 *acard;
  87         struct snd_opl3 *opl3;
  88         int err;
  89
  90         err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
  91                            sizeof(struct snd_sb8), &card);
  92         if (err < 0)
  93                 return err;
  94         acard = card->private_data;
  95         card->private_free = snd_sb8_free;
  96
  97         /* block the 0x388 port to avoid PnP conflicts */
  98         acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
  99
 100         if (port[dev] != SNDRV_AUTO_PORT) {
 101                 if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
 102                                             snd_sb8_interrupt,
 103                                             dma8[dev],
 104                                             -1,
 105                                             SB_HW_AUTO,
 106                                             &chip)) < 0)
 107                         goto _err;
 108         } else {
 109                 /* auto-probe legacy ports */
 110                 static const unsigned long possible_ports[] = {
 111                         0x220, 0x240, 0x260,
 112                 };
 113                 int i;
 114                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
 115                         err = snd_sbdsp_create(card, possible_ports[i],
 116                                                irq[dev],
 117                                                snd_sb8_interrupt,
 118                                                dma8[dev],
 119                                                -1,
 120                                                SB_HW_AUTO,
 121                                                &chip);
 122                         if (err >= 0) {
 123                                 port[dev] = possible_ports[i];
 124                                 break;
 125                         }
 126                 }
 127                 if (i >= ARRAY_SIZE(possible_ports)) {
 128                         err = -EINVAL;
 129                         goto _err;
 130                 }
 131         }
 132         acard->chip = chip;
 133
 134         if (chip->hardware >= SB_HW_16) {
 135                 if (chip->hardware == SB_HW_ALS100)
 136                         snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
 137                                     port[dev]);
 138                 else
 139                         snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
 140                                    port[dev]);
 141                 err = -ENODEV;
 142                 goto _err;
 143         }
 144
 145         if ((err = snd_sb8dsp_pcm(chip, 0)) < 0)
 146                 goto _err;
 147
 148         if ((err = snd_sbmixer_new(chip)) < 0)
 149                 goto _err;
 150
 151         if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
 152                 if ((err = snd_opl3_create(card, chip->port + 8, 0,
 153                                            OPL3_HW_AUTO, 1,
 154                                            &opl3)) < 0) {
 155                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
 156                 }
 157         } else {
 158                 if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
 159                                            OPL3_HW_AUTO, 1,
 160                                            &opl3)) < 0) {
 161                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
 162                                    chip->port, chip->port + 2);
 163                 }
 164         }
 165         if (err >= 0) {
 166                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
 167                         goto _err;
 168         }
 169
 170         if ((err = snd_sb8dsp_midi(chip, 0)) < 0)
 171                 goto _err;
 172
 173         strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
 174         strcpy(card->shortname, chip->name);
 175         sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
 176                 chip->name,
 177                 chip->port,
 178                 irq[dev], dma8[dev]);
 179
 180         if ((err = snd_card_register(card)) < 0)
 181                 goto _err;
 182
 183         dev_set_drvdata(pdev, card);
 184         return 0;
 185
 186  _err:
 187         snd_card_free(card);
 188         return err;
 189 }
 190
 191 static int snd_sb8_remove(struct device *pdev, unsigned int dev)
 192 {
 193         snd_card_free(dev_get_drvdata(pdev));
 194         return 0;
 195 }
 196
 197 #ifdef CONFIG_PM
 198 static int snd_sb8_suspend(struct device *dev, unsigned int n,
 199                            pm_message_t state)
 200 {
 201         struct snd_card *card = dev_get_drvdata(dev);
 202         struct snd_sb8 *acard = card->private_data;
 203         struct snd_sb *chip = acard->chip;
 204
 205         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 206         snd_sbmixer_suspend(chip);
 207         return 0;
 208 }
 209
 210 static int snd_sb8_resume(struct device *dev, unsigned int n)
 211 {
 212         struct snd_card *card = dev_get_drvdata(dev);
 213         struct snd_sb8 *acard = card->private_data;
 214         struct snd_sb *chip = acard->chip;
 215
 216         snd_sbdsp_reset(chip);
 217         snd_sbmixer_resume(chip);
 218         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 219         return 0;
 220 }
 221 #endif
 222
 223 #define DEV_NAME "sb8"
 224
 225 static struct isa_driver snd_sb8_driver = {
 226         .match          = snd_sb8_match,
 227         .probe          = snd_sb8_probe,
 228         .remove         = snd_sb8_remove,
 229 #ifdef CONFIG_PM
 230         .suspend        = snd_sb8_suspend,
 231         .resume         = snd_sb8_resume,
 232 #endif
 233         .driver         = {
 234                 .name   = DEV_NAME
 235         },
 236 };
 237
 238 module_isa_driver(snd_sb8_driver, SNDRV_CARDS);