summaryrefslogtreecommitdiffstats
path: root/sound/isa/ad1848/ad1848.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/isa/ad1848/ad1848.c')
-rw-r--r--sound/isa/ad1848/ad1848.c151
1 files changed, 151 insertions, 0 deletions
diff --git a/sound/isa/ad1848/ad1848.c b/sound/isa/ad1848/ad1848.c
new file mode 100644
index 0000000..8c39934
--- /dev/null
+++ b/sound/isa/ad1848/ad1848.c
@@ -0,0 +1,151 @@
+/*
+ * Generic driver for AD1848/AD1847/CS4248 chips (0.1 Alpha)
+ * Copyright (c) by Tugrul Galatali <galatalt@stuy.edu>,
+ * Jaroslav Kysela <perex@suse.cz>
+ * Based on card-4232.c by Jaroslav Kysela <perex@suse.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 <sound/driver.h>
+#include <linux/init.h>
+#include <linux/time.h>
+#include <linux/wait.h>
+#include <linux/moduleparam.h>
+#include <sound/core.h>
+#include <sound/ad1848.h>
+#include <sound/initval.h>
+
+MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@suse.cz>");
+MODULE_DESCRIPTION("AD1848/AD1847/CS4248");
+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 int 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 int thinkpad[SNDRV_CARDS]; /* Thinkpad special case */
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for AD1848 soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for AD1848 soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable AD1848 soundcard.");
+module_param_array(port, long, NULL, 0444);
+MODULE_PARM_DESC(port, "Port # for AD1848 driver.");
+module_param_array(irq, int, NULL, 0444);
+MODULE_PARM_DESC(irq, "IRQ # for AD1848 driver.");
+module_param_array(dma1, int, NULL, 0444);
+MODULE_PARM_DESC(dma1, "DMA1 # for AD1848 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 snd_card_t *snd_ad1848_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
+
+
+static int __init snd_card_ad1848_probe(int dev)
+{
+ snd_card_t *card;
+ ad1848_t *chip;
+ snd_pcm_t *pcm;
+ int err;
+
+ if (port[dev] == SNDRV_AUTO_PORT) {
+ snd_printk(KERN_ERR "ad1848: specify port\n");
+ return -EINVAL;
+ }
+ if (irq[dev] == SNDRV_AUTO_IRQ) {
+ snd_printk(KERN_ERR "ad1848: specify irq\n");
+ return -EINVAL;
+ }
+ if (dma1[dev] == SNDRV_AUTO_DMA) {
+ snd_printk(KERN_ERR "ad1848: specify dma1\n");
+ return -EINVAL;
+ }
+
+ card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
+ if (card == NULL)
+ return -ENOMEM;
+
+ if ((err = snd_ad1848_create(card, port[dev],
+ irq[dev],
+ dma1[dev],
+ thinkpad[dev] ? AD1848_HW_THINKPAD : AD1848_HW_DETECT,
+ &chip)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ if ((err = snd_ad1848_pcm(chip, 0, &pcm)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ if ((err = snd_ad1848_mixer(chip)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ strcpy(card->driver, "AD1848");
+ strcpy(card->shortname, pcm->name);
+
+ sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
+ pcm->name, chip->port, irq[dev], dma1[dev]);
+
+ if (thinkpad[dev]) {
+ strcat(card->longname, " [Thinkpad]");
+ }
+
+ if ((err = snd_card_register(card)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ snd_ad1848_cards[dev] = card;
+ return 0;
+}
+
+static int __init alsa_card_ad1848_init(void)
+{
+ int dev, cards;
+
+ for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++)
+ if (snd_card_ad1848_probe(dev) >= 0)
+ cards++;
+
+ if (!cards) {
+#ifdef MODULE
+ printk(KERN_ERR "AD1848 soundcard not found or device busy\n");
+#endif
+ return -ENODEV;
+ }
+ return 0;
+}
+
+static void __exit alsa_card_ad1848_exit(void)
+{
+ int idx;
+
+ for (idx = 0; idx < SNDRV_CARDS; idx++)
+ snd_card_free(snd_ad1848_cards[idx]);
+}
+
+module_init(alsa_card_ad1848_init)
+module_exit(alsa_card_ad1848_exit)
OpenPOWER on IntegriCloud