--- /dev/null
+/*
+ * Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/isa.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/sb.h>
+#include <sound/opl3.h>
+#include <sound/initval.h>
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
+MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
+static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */
+static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */
+static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
+module_param_array(port, long, NULL, 0444);
+MODULE_PARM_DESC(port, "Port # for SB8 driver.");
+module_param_array(irq, int, NULL, 0444);
+MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
+module_param_array(dma8, int, NULL, 0444);
+MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
+
+struct snd_sb8 {
+ struct resource *fm_res; /* used to block FM i/o region for legacy cards */
+ struct snd_sb *chip;
+};
+
+static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id)
+{
+ struct snd_sb *chip = dev_id;
+
+ if (chip->open & SB_OPEN_PCM) {
+ return snd_sb8dsp_interrupt(chip);
+ } else {
+ return snd_sb8dsp_midi_interrupt(chip);
+ }
+}
+
+static void snd_sb8_free(struct snd_card *card)
+{
+ struct snd_sb8 *acard = card->private_data;
+
+ if (acard == NULL)
+ return;
+ release_and_free_resource(acard->fm_res);
+}
+
+static int snd_sb8_match(struct device *pdev, unsigned int dev)
+{
+ if (!enable[dev])
+ return 0;
+ if (irq[dev] == SNDRV_AUTO_IRQ) {
+ dev_err(pdev, "please specify irq\n");
+ return 0;
+ }
+ if (dma8[dev] == SNDRV_AUTO_DMA) {
+ dev_err(pdev, "please specify dma8\n");
+ return 0;
+ }
+ return 1;
+}
+
+static int snd_sb8_probe(struct device *pdev, unsigned int dev)
+{
+ struct snd_sb *chip;
+ struct snd_card *card;
+ struct snd_sb8 *acard;
+ struct snd_opl3 *opl3;
+ int err;
+
+ err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
+ sizeof(struct snd_sb8), &card);
+ if (err < 0)
+ return err;
+ acard = card->private_data;
+ card->private_free = snd_sb8_free;
+
+ /* block the 0x388 port to avoid PnP conflicts */
+ acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
+
+ if (port[dev] != SNDRV_AUTO_PORT) {
+ if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
+ snd_sb8_interrupt,
+ dma8[dev],
+ -1,
+ SB_HW_AUTO,
+ &chip)) < 0)
+ goto _err;
+ } else {
+ /* auto-probe legacy ports */
+ static unsigned long possible_ports[] = {
+ 0x220, 0x240, 0x260,
+ };
+ int i;
+ for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
+ err = snd_sbdsp_create(card, possible_ports[i],
+ irq[dev],
+ snd_sb8_interrupt,
+ dma8[dev],
+ -1,
+ SB_HW_AUTO,
+ &chip);
+ if (err >= 0) {
+ port[dev] = possible_ports[i];
+ break;
+ }
+ }
+ if (i >= ARRAY_SIZE(possible_ports)) {
+ err = -EINVAL;
+ goto _err;
+ }
+ }
+ acard->chip = chip;
+
+ if (chip->hardware >= SB_HW_16) {
+ if (chip->hardware == SB_HW_ALS100)
+ snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
+ port[dev]);
+ else
+ snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
+ port[dev]);
+ err = -ENODEV;
+ goto _err;
+ }
+
+ if ((err = snd_sb8dsp_pcm(chip, 0)) < 0)
+ goto _err;
+
+ if ((err = snd_sbmixer_new(chip)) < 0)
+ goto _err;
+
+ if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
+ if ((err = snd_opl3_create(card, chip->port + 8, 0,
+ OPL3_HW_AUTO, 1,
+ &opl3)) < 0) {
+ snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
+ }
+ } else {
+ if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
+ OPL3_HW_AUTO, 1,
+ &opl3)) < 0) {
+ snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
+ chip->port, chip->port + 2);
+ }
+ }
+ if (err >= 0) {
+ if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
+ goto _err;
+ }
+
+ if ((err = snd_sb8dsp_midi(chip, 0)) < 0)
+ goto _err;
+
+ strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
+ strcpy(card->shortname, chip->name);
+ sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
+ chip->name,
+ chip->port,
+ irq[dev], dma8[dev]);
+
+ if ((err = snd_card_register(card)) < 0)
+ goto _err;
+
+ dev_set_drvdata(pdev, card);
+ return 0;
+
+ _err:
+ snd_card_free(card);
+ return err;
+}
+
+static int snd_sb8_remove(struct device *pdev, unsigned int dev)
+{
+ snd_card_free(dev_get_drvdata(pdev));
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int snd_sb8_suspend(struct device *dev, unsigned int n,
+ pm_message_t state)
+{
+ struct snd_card *card = dev_get_drvdata(dev);
+ struct snd_sb8 *acard = card->private_data;
+ struct snd_sb *chip = acard->chip;
+
+ snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+ snd_pcm_suspend_all(chip->pcm);
+ snd_sbmixer_suspend(chip);
+ return 0;
+}
+
+static int snd_sb8_resume(struct device *dev, unsigned int n)
+{
+ struct snd_card *card = dev_get_drvdata(dev);
+ struct snd_sb8 *acard = card->private_data;
+ struct snd_sb *chip = acard->chip;
+
+ snd_sbdsp_reset(chip);
+ snd_sbmixer_resume(chip);
+ snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+ return 0;
+}
+#endif
+
+#define DEV_NAME "sb8"
+
+static struct isa_driver snd_sb8_driver = {
+ .match = snd_sb8_match,
+ .probe = snd_sb8_probe,
+ .remove = snd_sb8_remove,
+#ifdef CONFIG_PM
+ .suspend = snd_sb8_suspend,
+ .resume = snd_sb8_resume,
+#endif
+ .driver = {
+ .name = DEV_NAME
+ },
+};
+
+static int __init alsa_card_sb8_init(void)
+{
+ return isa_register_driver(&snd_sb8_driver, SNDRV_CARDS);
+}
+
+static void __exit alsa_card_sb8_exit(void)
+{
+ isa_unregister_driver(&snd_sb8_driver);
+}
+
+module_init(alsa_card_sb8_init)
+module_exit(alsa_card_sb8_exit)
Code Review / kvmfornfv.git / blobdiff