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 int snd_sb8_match(struct device *pdev, unsigned int dev)
  58 {
  59         if (!enable[dev])
  60                 return 0;
  61         if (irq[dev] == SNDRV_AUTO_IRQ) {
  62                 dev_err(pdev, "please specify irq\n");
  63                 return 0;
  64         }
  65         if (dma8[dev] == SNDRV_AUTO_DMA) {
  66                 dev_err(pdev, "please specify dma8\n");
  67                 return 0;
  68         }
  69         return 1;
  70 }
  71
  72 static int snd_sb8_probe(struct device *pdev, unsigned int dev)
  73 {
  74         struct snd_sb *chip;
  75         struct snd_card *card;
  76         struct snd_sb8 *acard;
  77         struct snd_opl3 *opl3;
  78         int err;
  79
  80         err = snd_devm_card_new(pdev, index[dev], id[dev], THIS_MODULE,
  81                                 sizeof(struct snd_sb8), &card);
  82         if (err < 0)
  83                 return err;
  84         acard = card->private_data;
  85
  86         /*
  87          * Block the 0x388 port to avoid PnP conflicts.
  88          * No need to check this value after request_region,
  89          * as we never do anything with it.
  90          */
  91         acard->fm_res = devm_request_region(card->dev, 0x388, 4,
  92                                             "SoundBlaster FM");
  93
  94         if (port[dev] != SNDRV_AUTO_PORT) {
  95                 err = snd_sbdsp_create(card, port[dev], irq[dev],
  96                                        snd_sb8_interrupt, dma8[dev],
  97                                        -1, SB_HW_AUTO, &chip);
  98                 if (err < 0)
  99                         return err;
 100         } else {
 101                 /* auto-probe legacy ports */
 102                 static const unsigned long possible_ports[] = {
 103                         0x220, 0x240, 0x260,
 104                 };
 105                 int i;
 106                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
 107                         err = snd_sbdsp_create(card, possible_ports[i],
 108                                                irq[dev],
 109                                                snd_sb8_interrupt,
 110                                                dma8[dev],
 111                                                -1,
 112                                                SB_HW_AUTO,
 113                                                &chip);
 114                         if (err >= 0) {
 115                                 port[dev] = possible_ports[i];
 116                                 break;
 117                         }
 118                 }
 119                 if (i >= ARRAY_SIZE(possible_ports))
 120                         return -EINVAL;
 121         }
 122         acard->chip = chip;
 123
 124         if (chip->hardware >= SB_HW_16) {
 125                 if (chip->hardware == SB_HW_ALS100)
 126                         snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
 127                                     port[dev]);
 128                 else
 129                         snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
 130                                    port[dev]);
 131                 return -ENODEV;
 132         }
 133
 134         err = snd_sb8dsp_pcm(chip, 0);
 135         if (err < 0)
 136                 return err;
 137
 138         err = snd_sbmixer_new(chip);
 139         if (err < 0)
 140                 return err;
 141
 142         if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
 143                 err = snd_opl3_create(card, chip->port + 8, 0,
 144                                       OPL3_HW_AUTO, 1, &opl3);
 145                 if (err < 0)
 146                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
 147         } else {
 148                 err = snd_opl3_create(card, chip->port, chip->port + 2,
 149                                       OPL3_HW_AUTO, 1, &opl3);
 150                 if (err < 0) {
 151                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
 152                                    chip->port, chip->port + 2);
 153                 }
 154         }
 155         if (err >= 0) {
 156                 err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
 157                 if (err < 0)
 158                         return err;
 159         }
 160
 161         err = snd_sb8dsp_midi(chip, 0);
 162         if (err < 0)
 163                 return err;
 164
 165         strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
 166         strcpy(card->shortname, chip->name);
 167         sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
 168                 chip->name,
 169                 chip->port,
 170                 irq[dev], dma8[dev]);
 171
 172         err = snd_card_register(card);
 173         if (err < 0)
 174                 return err;
 175
 176         dev_set_drvdata(pdev, card);
 177         return 0;
 178 }
 179
 180 #ifdef CONFIG_PM
 181 static int snd_sb8_suspend(struct device *dev, unsigned int n,
 182                            pm_message_t state)
 183 {
 184         struct snd_card *card = dev_get_drvdata(dev);
 185         struct snd_sb8 *acard = card->private_data;
 186         struct snd_sb *chip = acard->chip;
 187
 188         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 189         snd_sbmixer_suspend(chip);
 190         return 0;
 191 }
 192
 193 static int snd_sb8_resume(struct device *dev, unsigned int n)
 194 {
 195         struct snd_card *card = dev_get_drvdata(dev);
 196         struct snd_sb8 *acard = card->private_data;
 197         struct snd_sb *chip = acard->chip;
 198
 199         snd_sbdsp_reset(chip);
 200         snd_sbmixer_resume(chip);
 201         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 202         return 0;
 203 }
 204 #endif
 205
 206 #define DEV_NAME "sb8"
 207
 208 static struct isa_driver snd_sb8_driver = {
 209         .match          = snd_sb8_match,
 210         .probe          = snd_sb8_probe,
 211 #ifdef CONFIG_PM
 212         .suspend        = snd_sb8_suspend,
 213         .resume         = snd_sb8_resume,
 214 #endif
 215         .driver         = {
 216                 .name   = DEV_NAME
 217         },
 218 };
 219
 220 module_isa_driver(snd_sb8_driver, SNDRV_CARDS);