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                 if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
 105                                             snd_sb8_interrupt,
 106                                             dma8[dev],
 107                                             -1,
 108                                             SB_HW_AUTO,
 109                                             &chip)) < 0)
 110                         goto _err;
 111         } else {
 112                 /* auto-probe legacy ports */
 113                 static const unsigned long possible_ports[] = {
 114                         0x220, 0x240, 0x260,
 115                 };
 116                 int i;
 117                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
 118                         err = snd_sbdsp_create(card, possible_ports[i],
 119                                                irq[dev],
 120                                                snd_sb8_interrupt,
 121                                                dma8[dev],
 122                                                -1,
 123                                                SB_HW_AUTO,
 124                                                &chip);
 125                         if (err >= 0) {
 126                                 port[dev] = possible_ports[i];
 127                                 break;
 128                         }
 129                 }
 130                 if (i >= ARRAY_SIZE(possible_ports)) {
 131                         err = -EINVAL;
 132                         goto _err;
 133                 }
 134         }
 135         acard->chip = chip;
 136
 137         if (chip->hardware >= SB_HW_16) {
 138                 if (chip->hardware == SB_HW_ALS100)
 139                         snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
 140                                     port[dev]);
 141                 else
 142                         snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
 143                                    port[dev]);
 144                 err = -ENODEV;
 145                 goto _err;
 146         }
 147
 148         if ((err = snd_sb8dsp_pcm(chip, 0)) < 0)
 149                 goto _err;
 150
 151         if ((err = snd_sbmixer_new(chip)) < 0)
 152                 goto _err;
 153
 154         if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
 155                 if ((err = snd_opl3_create(card, chip->port + 8, 0,
 156                                            OPL3_HW_AUTO, 1,
 157                                            &opl3)) < 0) {
 158                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
 159                 }
 160         } else {
 161                 if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
 162                                            OPL3_HW_AUTO, 1,
 163                                            &opl3)) < 0) {
 164                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
 165                                    chip->port, chip->port + 2);
 166                 }
 167         }
 168         if (err >= 0) {
 169                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
 170                         goto _err;
 171         }
 172
 173         if ((err = snd_sb8dsp_midi(chip, 0)) < 0)
 174                 goto _err;
 175
 176         strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
 177         strcpy(card->shortname, chip->name);
 178         sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
 179                 chip->name,
 180                 chip->port,
 181                 irq[dev], dma8[dev]);
 182
 183         if ((err = snd_card_register(card)) < 0)
 184                 goto _err;
 185
 186         dev_set_drvdata(pdev, card);
 187         return 0;
 188
 189  _err:
 190         snd_card_free(card);
 191         return err;
 192 }
 193
 194 static void snd_sb8_remove(struct device *pdev, unsigned int dev)
 195 {
 196         snd_card_free(dev_get_drvdata(pdev));
 197 }
 198
 199 #ifdef CONFIG_PM
 200 static int snd_sb8_suspend(struct device *dev, unsigned int n,
 201                            pm_message_t state)
 202 {
 203         struct snd_card *card = dev_get_drvdata(dev);
 204         struct snd_sb8 *acard = card->private_data;
 205         struct snd_sb *chip = acard->chip;
 206
 207         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 208         snd_sbmixer_suspend(chip);
 209         return 0;
 210 }
 211
 212 static int snd_sb8_resume(struct device *dev, unsigned int n)
 213 {
 214         struct snd_card *card = dev_get_drvdata(dev);
 215         struct snd_sb8 *acard = card->private_data;
 216         struct snd_sb *chip = acard->chip;
 217
 218         snd_sbdsp_reset(chip);
 219         snd_sbmixer_resume(chip);
 220         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 221         return 0;
 222 }
 223 #endif
 224
 225 #define DEV_NAME "sb8"
 226
 227 static struct isa_driver snd_sb8_driver = {
 228         .match          = snd_sb8_match,
 229         .probe          = snd_sb8_probe,
 230         .remove         = snd_sb8_remove,
 231 #ifdef CONFIG_PM
 232         .suspend        = snd_sb8_suspend,
 233         .resume         = snd_sb8_resume,
 234 #endif
 235         .driver         = {
 236                 .name   = DEV_NAME
 237         },
 238 };
 239
 240 module_isa_driver(snd_sb8_driver, SNDRV_CARDS);