--- /dev/null
+/*
+ * Driver for Gravis UltraSound Classic soundcard
+ * 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/delay.h>
+#include <linux/time.h>
+#include <linux/module.h>
+#include <asm/dma.h>
+#include <sound/core.h>
+#include <sound/gus.h>
+#define SNDRV_LEGACY_FIND_FREE_IRQ
+#define SNDRV_LEGACY_FIND_FREE_DMA
+#include <sound/initval.h>
+
+#define CRD_NAME "Gravis UltraSound Classic"
+#define DEV_NAME "gusclassic"
+
+MODULE_DESCRIPTION(CRD_NAME);
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}");
+
+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; /* 0x220,0x230,0x240,0x250,0x260 */
+static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 3,5,9,11,12,15 */
+static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */
+static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */
+static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
+ /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
+static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
+static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
+
+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(dma2, int, NULL, 0444);
+MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
+module_param_array(joystick_dac, int, NULL, 0444);
+MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for " CRD_NAME " driver.");
+module_param_array(channels, int, NULL, 0444);
+MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver.");
+module_param_array(pcm_channels, int, NULL, 0444);
+MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver.");
+
+static int snd_gusclassic_match(struct device *dev, unsigned int n)
+{
+ return enable[n];
+}
+
+static int snd_gusclassic_create(struct snd_card *card,
+ struct device *dev, unsigned int n,
+ struct snd_gus_card **rgus)
+{
+ static long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260};
+ static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1};
+ static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
+
+ int i, error;
+
+ if (irq[n] == SNDRV_AUTO_IRQ) {
+ irq[n] = snd_legacy_find_free_irq(possible_irqs);
+ if (irq[n] < 0) {
+ dev_err(dev, "unable to find a free IRQ\n");
+ return -EBUSY;
+ }
+ }
+ if (dma1[n] == SNDRV_AUTO_DMA) {
+ dma1[n] = snd_legacy_find_free_dma(possible_dmas);
+ if (dma1[n] < 0) {
+ dev_err(dev, "unable to find a free DMA1\n");
+ return -EBUSY;
+ }
+ }
+ if (dma2[n] == SNDRV_AUTO_DMA) {
+ dma2[n] = snd_legacy_find_free_dma(possible_dmas);
+ if (dma2[n] < 0) {
+ dev_err(dev, "unable to find a free DMA2\n");
+ return -EBUSY;
+ }
+ }
+
+ if (port[n] != SNDRV_AUTO_PORT)
+ return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
+ 0, channels[n], pcm_channels[n], 0, rgus);
+
+ i = 0;
+ do {
+ port[n] = possible_ports[i];
+ error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
+ 0, channels[n], pcm_channels[n], 0, rgus);
+ } while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
+
+ return error;
+}
+
+static int snd_gusclassic_detect(struct snd_gus_card *gus)
+{
+ unsigned char d;
+
+ snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */
+ if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
+ snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
+ return -ENODEV;
+ }
+ udelay(160);
+ snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */
+ udelay(160);
+ if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
+ snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
+ return -ENODEV;
+ }
+ return 0;
+}
+
+static int snd_gusclassic_probe(struct device *dev, unsigned int n)
+{
+ struct snd_card *card;
+ struct snd_gus_card *gus;
+ int error;
+
+ error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
+ if (error < 0)
+ return error;
+
+ if (pcm_channels[n] < 2)
+ pcm_channels[n] = 2;
+
+ error = snd_gusclassic_create(card, dev, n, &gus);
+ if (error < 0)
+ goto out;
+
+ error = snd_gusclassic_detect(gus);
+ if (error < 0)
+ goto out;
+
+ gus->joystick_dac = joystick_dac[n];
+
+ error = snd_gus_initialize(gus);
+ if (error < 0)
+ goto out;
+
+ error = -ENODEV;
+ if (gus->max_flag || gus->ess_flag) {
+ dev_err(dev, "GUS Classic or ACE soundcard was "
+ "not detected at 0x%lx\n", gus->gf1.port);
+ goto out;
+ }
+
+ error = snd_gf1_new_mixer(gus);
+ if (error < 0)
+ goto out;
+
+ error = snd_gf1_pcm_new(gus, 0, 0);
+ if (error < 0)
+ goto out;
+
+ if (!gus->ace_flag) {
+ error = snd_gf1_rawmidi_new(gus, 0);
+ if (error < 0)
+ goto out;
+ }
+
+ sprintf(card->longname + strlen(card->longname),
+ " at 0x%lx, irq %d, dma %d",
+ gus->gf1.port, gus->gf1.irq, gus->gf1.dma1);
+
+ if (gus->gf1.dma2 >= 0)
+ sprintf(card->longname + strlen(card->longname),
+ "&%d", gus->gf1.dma2);
+
+ 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_gusclassic_remove(struct device *dev, unsigned int n)
+{
+ snd_card_free(dev_get_drvdata(dev));
+ return 0;
+}
+
+static struct isa_driver snd_gusclassic_driver = {
+ .match = snd_gusclassic_match,
+ .probe = snd_gusclassic_probe,
+ .remove = snd_gusclassic_remove,
+#if 0 /* FIXME */
+ .suspend = snd_gusclassic_suspend,
+ .remove = snd_gusclassic_remove,
+#endif
+ .driver = {
+ .name = DEV_NAME
+ }
+};
+
+static int __init alsa_card_gusclassic_init(void)
+{
+ return isa_register_driver(&snd_gusclassic_driver, SNDRV_CARDS);
+}
+
+static void __exit alsa_card_gusclassic_exit(void)
+{
+ isa_unregister_driver(&snd_gusclassic_driver);
+}
+
+module_init(alsa_card_gusclassic_init);
+module_exit(alsa_card_gusclassic_exit);
Code Review / kvmfornfv.git / blobdiff