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
  21 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  22 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  23 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
  24 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260 */
  25 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
  26 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3 */
  27
  28 module_param_array(index, int, NULL, 0444);
  29 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
  30 module_param_array(id, charp, NULL, 0444);
  31 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
  32 module_param_array(enable, bool, NULL, 0444);
  33 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
  34 module_param_hw_array(port, long, ioport, NULL, 0444);
  35 MODULE_PARM_DESC(port, "Port # for SB8 driver.");
  36 module_param_hw_array(irq, int, irq, NULL, 0444);
  37 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
  38 module_param_hw_array(dma8, int, dma, NULL, 0444);
  39 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
  40
  41 struct snd_sb8 {
  42         struct resource *fm_res;        /* used to block FM i/o region for legacy cards */
  43         struct snd_sb *chip;
  44 };
  45
  46 static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id)
  47 {
  48         struct snd_sb *chip = dev_id;
  49
  50         if (chip->open & SB_OPEN_PCM) {
  51                 return snd_sb8dsp_interrupt(chip);
  52         } else {
  53                 return snd_sb8dsp_midi_interrupt(chip);
  54         }
  55 }
  56
  57 static void snd_sb8_free(struct snd_card *card)
  58 {
  59         struct snd_sb8 *acard = card->private_data;
  60
  61         if (acard == NULL)
  62                 return;
  63         release_and_free_resource(acard->fm_res);
  64 }
  65
  66 static int snd_sb8_match(struct device *pdev, unsigned int dev)
  67 {
  68         if (!enable[dev])
  69                 return 0;
  70         if (irq[dev] == SNDRV_AUTO_IRQ) {
  71                 dev_err(pdev, "please specify irq\n");
  72                 return 0;
  73         }
  74         if (dma8[dev] == SNDRV_AUTO_DMA) {
  75                 dev_err(pdev, "please specify dma8\n");
  76                 return 0;
  77         }
  78         return 1;
  79 }
  80
  81 static int snd_sb8_probe(struct device *pdev, unsigned int dev)
  82 {
  83         struct snd_sb *chip;
  84         struct snd_card *card;
  85         struct snd_sb8 *acard;
  86         struct snd_opl3 *opl3;
  87         int err;
  88
  89         err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
  90                            sizeof(struct snd_sb8), &card);
  91         if (err < 0)
  92                 return err;
  93         acard = card->private_data;
  94         card->private_free = snd_sb8_free;
  95
  96         /*
  97          * Block the 0x388 port to avoid PnP conflicts.
  98          * No need to check this value after request_region,
  99          * as we never do anything with it.
 100          */
 101         acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
 102
 103         if (port[dev] != SNDRV_AUTO_PORT) {
 104                 err = snd_sbdsp_create(card, port[dev], irq[dev],
 105                                        snd_sb8_interrupt, dma8[dev],
 106                                        -1, SB_HW_AUTO, &chip);
 107                 if (err < 0)
 108                         goto _err;
 109         } else {
 110                 /* auto-probe legacy ports */
 111                 static const unsigned long possible_ports[] = {
 112                         0x220, 0x240, 0x260,
 113                 };
 114                 int i;
 115                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
 116                         err = snd_sbdsp_create(card, possible_ports[i],
 117                                                irq[dev],
 118                                                snd_sb8_interrupt,
 119                                                dma8[dev],
 120                                                -1,
 121                                                SB_HW_AUTO,
 122                                                &chip);
 123                         if (err >= 0) {
 124                                 port[dev] = possible_ports[i];
 125                                 break;
 126                         }
 127                 }
 128                 if (i >= ARRAY_SIZE(possible_ports)) {
 129                         err = -EINVAL;
 130                         goto _err;
 131                 }
 132         }
 133         acard->chip = chip;
 134
 135         if (chip->hardware >= SB_HW_16) {
 136                 if (chip->hardware == SB_HW_ALS100)
 137                         snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
 138                                     port[dev]);
 139                 else
 140                         snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
 141                                    port[dev]);
 142                 err = -ENODEV;
 143                 goto _err;
 144         }
 145
 146         err = snd_sb8dsp_pcm(chip, 0);
 147         if (err < 0)
 148                 goto _err;
 149
 150         err = snd_sbmixer_new(chip);
 151         if (err < 0)
 152                 goto _err;
 153
 154         if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
 155                 err = snd_opl3_create(card, chip->port + 8, 0,
 156                                       OPL3_HW_AUTO, 1, &opl3);
 157                 if (err < 0)
 158                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
 159         } else {
 160                 err = snd_opl3_create(card, chip->port, chip->port + 2,
 161                                       OPL3_HW_AUTO, 1, &opl3);
 162                 if (err < 0) {
 163                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
 164                                    chip->port, chip->port + 2);
 165                 }
 166         }
 167         if (err >= 0) {
 168                 err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
 169                 if (err < 0)
 170                         goto _err;
 171         }
 172
 173         err = snd_sb8dsp_midi(chip, 0);
 174         if (err < 0)
 175                 goto _err;
 176
 177         strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
 178         strcpy(card->shortname, chip->name);
 179         sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
 180                 chip->name,
 181                 chip->port,
 182                 irq[dev], dma8[dev]);
 183
 184         err = snd_card_register(card);
 185         if (err < 0)
 186                 goto _err;
 187
 188         dev_set_drvdata(pdev, card);
 189         return 0;
 190
 191  _err:
 192         snd_card_free(card);
 193         return err;
 194 }
 195
 196 static void snd_sb8_remove(struct device *pdev, unsigned int dev)
 197 {
 198         snd_card_free(dev_get_drvdata(pdev));
 199 }
 200
 201 #ifdef CONFIG_PM
 202 static int snd_sb8_suspend(struct device *dev, unsigned int n,
 203                            pm_message_t state)
 204 {
 205         struct snd_card *card = dev_get_drvdata(dev);
 206         struct snd_sb8 *acard = card->private_data;
 207         struct snd_sb *chip = acard->chip;
 208
 209         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 210         snd_sbmixer_suspend(chip);
 211         return 0;
 212 }
 213
 214 static int snd_sb8_resume(struct device *dev, unsigned int n)
 215 {
 216         struct snd_card *card = dev_get_drvdata(dev);
 217         struct snd_sb8 *acard = card->private_data;
 218         struct snd_sb *chip = acard->chip;
 219
 220         snd_sbdsp_reset(chip);
 221         snd_sbmixer_resume(chip);
 222         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 223         return 0;
 224 }
 225 #endif
 226
 227 #define DEV_NAME "sb8"
 228
 229 static struct isa_driver snd_sb8_driver = {
 230         .match          = snd_sb8_match,
 231         .probe          = snd_sb8_probe,
 232         .remove         = snd_sb8_remove,
 233 #ifdef CONFIG_PM
 234         .suspend        = snd_sb8_suspend,
 235         .resume         = snd_sb8_resume,
 236 #endif
 237         .driver         = {
 238                 .name   = DEV_NAME
 239         },
 240 };
 241
 242 module_isa_driver(snd_sb8_driver, SNDRV_CARDS);