init android origin source code

1 files changed, 245 insertions, 0 deletions

diff --git a/ANDROID_3.4.5/sound/isa/gus/gusclassic.c b/ANDROID_3.4.5/sound/isa/gus/gusclassic.c
new file mode 100644
index 00000000..bf633367
--- /dev/null
+++ b/ANDROID_3.4.5/sound/isa/gus/gusclassic.c
@@ -0,0 +1,245 @@
+/*
+ *  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 __devinit snd_gusclassic_match(struct device *dev, unsigned int n)
+{
+	return enable[n];
+}
+
+static int __devinit 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 __devinit 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 __devinit snd_gusclassic_probe(struct device *dev, unsigned int n)
+{
+	struct snd_card *card;
+	struct snd_gus_card *gus;
+	int error;
+
+	error = snd_card_create(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, NULL);
+	if (error < 0)
+		goto out;
+
+	if (!gus->ace_flag) {
+		error = snd_gf1_rawmidi_new(gus, 0, NULL);
+		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);
+
+	snd_card_set_dev(card, dev);
+
+	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 __devexit snd_gusclassic_remove(struct device *dev, unsigned int n)
+{
+	snd_card_free(dev_get_drvdata(dev));
+	dev_set_drvdata(dev, NULL);
+	return 0;
+}
+
+static struct isa_driver snd_gusclassic_driver = {
+	.match		= snd_gusclassic_match,
+	.probe		= snd_gusclassic_probe,
+	.remove		= __devexit_p(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);