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Diffstat (limited to 'sound/isa/ad1848/ad1848.c')
-rw-r--r--sound/isa/ad1848/ad1848.c184
1 files changed, 184 insertions, 0 deletions
diff --git a/sound/isa/ad1848/ad1848.c b/sound/isa/ad1848/ad1848.c
new file mode 100644
index 000000000..f159da4ec
--- /dev/null
+++ b/sound/isa/ad1848/ad1848.c
@@ -0,0 +1,184 @@
+/*
+ * Generic driver for AD1848/AD1847/CS4248 chips (0.1 Alpha)
+ * Copyright (c) by Tugrul Galatali <galatalt@stuy.edu>,
+ * Jaroslav Kysela <perex@perex.cz>
+ * Based on card-4232.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/time.h>
+#include <linux/wait.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/wss.h>
+#include <sound/initval.h>
+
+#define CRD_NAME "Generic AD1848/AD1847/CS4248"
+#define DEV_NAME "ad1848"
+
+MODULE_DESCRIPTION(CRD_NAME);
+MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@perex.cz>");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848},"
+ "{Analog Devices,AD1847},"
+ "{Crystal Semiconductors,CS4248}}");
+
+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; /* PnP setup */
+static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */
+static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
+static bool thinkpad[SNDRV_CARDS]; /* Thinkpad special case */
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
+module_param_array(port, long, NULL, 0444);
+MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
+module_param_array(irq, int, NULL, 0444);
+MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
+module_param_array(dma1, int, NULL, 0444);
+MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
+module_param_array(thinkpad, bool, NULL, 0444);
+MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");
+
+static int snd_ad1848_match(struct device *dev, unsigned int n)
+{
+ if (!enable[n])
+ return 0;
+
+ if (port[n] == SNDRV_AUTO_PORT) {
+ dev_err(dev, "please specify port\n");
+ return 0;
+ }
+ if (irq[n] == SNDRV_AUTO_IRQ) {
+ dev_err(dev, "please specify irq\n");
+ return 0;
+ }
+ if (dma1[n] == SNDRV_AUTO_DMA) {
+ dev_err(dev, "please specify dma1\n");
+ return 0;
+ }
+ return 1;
+}
+
+static int snd_ad1848_probe(struct device *dev, unsigned int n)
+{
+ struct snd_card *card;
+ struct snd_wss *chip;
+ int error;
+
+ error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
+ if (error < 0)
+ return error;
+
+ error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], -1,
+ thinkpad[n] ? WSS_HW_THINKPAD : WSS_HW_DETECT,
+ 0, &chip);
+ if (error < 0)
+ goto out;
+
+ card->private_data = chip;
+
+ error = snd_wss_pcm(chip, 0);
+ if (error < 0)
+ goto out;
+
+ error = snd_wss_mixer(chip);
+ if (error < 0)
+ goto out;
+
+ strcpy(card->driver, "AD1848");
+ strcpy(card->shortname, chip->pcm->name);
+
+ sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
+ chip->pcm->name, chip->port, irq[n], dma1[n]);
+ if (thinkpad[n])
+ strcat(card->longname, " [Thinkpad]");
+
+ error = snd_card_register(card);
+ if (error < 0)
+ goto out;
+
+ dev_set_drvdata(dev, card);
+ return 0;
+
+out: snd_card_free(card);
+ return error;
+}
+
+static int snd_ad1848_remove(struct device *dev, unsigned int n)
+{
+ snd_card_free(dev_get_drvdata(dev));
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int snd_ad1848_suspend(struct device *dev, unsigned int n, pm_message_t state)
+{
+ struct snd_card *card = dev_get_drvdata(dev);
+ struct snd_wss *chip = card->private_data;
+
+ snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+ chip->suspend(chip);
+ return 0;
+}
+
+static int snd_ad1848_resume(struct device *dev, unsigned int n)
+{
+ struct snd_card *card = dev_get_drvdata(dev);
+ struct snd_wss *chip = card->private_data;
+
+ chip->resume(chip);
+ snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+ return 0;
+}
+#endif
+
+static struct isa_driver snd_ad1848_driver = {
+ .match = snd_ad1848_match,
+ .probe = snd_ad1848_probe,
+ .remove = snd_ad1848_remove,
+#ifdef CONFIG_PM
+ .suspend = snd_ad1848_suspend,
+ .resume = snd_ad1848_resume,
+#endif
+ .driver = {
+ .name = DEV_NAME
+ }
+};
+
+static int __init alsa_card_ad1848_init(void)
+{
+ return isa_register_driver(&snd_ad1848_driver, SNDRV_CARDS);
+}
+
+static void __exit alsa_card_ad1848_exit(void)
+{
+ isa_unregister_driver(&snd_ad1848_driver);
+}
+
+module_init(alsa_card_ad1848_init);
+module_exit(alsa_card_ad1848_exit);