init android origin source code

1 files changed, 204 insertions, 0 deletions

diff --git a/ANDROID_3.4.5/sound/isa/cs423x/cs4231.c b/ANDROID_3.4.5/sound/isa/cs423x/cs4231.c
new file mode 100644
index 00000000..99dda45e
--- /dev/null
+++ b/ANDROID_3.4.5/sound/isa/cs423x/cs4231.c
@@ -0,0 +1,204 @@
+/*
+ *  Generic driver for CS4231 chips
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ *  Originally the CS4232/CS4232A driver, modified for use on CS4231 by
+ *  Tugrul Galatali <galatalt@stuy.edu>
+ *
+ *   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/mpu401.h>
+#include <sound/initval.h>
+
+#define CRD_NAME "Generic CS4231"
+#define DEV_NAME "cs4231"
+
+MODULE_DESCRIPTION(CRD_NAME);
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}");
+
+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 long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
+static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,11,12,15 */
+static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 9,11,12,15 */
+static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
+static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
+
+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(mpu_port, long, NULL, 0444);
+MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
+module_param_array(irq, int, NULL, 0444);
+MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
+module_param_array(mpu_irq, int, NULL, 0444);
+MODULE_PARM_DESC(mpu_irq, "MPU-401 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.");
+
+static int __devinit snd_cs4231_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 __devinit snd_cs4231_probe(struct device *dev, unsigned int n)
+{
+	struct snd_card *card;
+	struct snd_wss *chip;
+	struct snd_pcm *pcm;
+	int error;
+
+	error = snd_card_create(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], dma2[n],
+			WSS_HW_DETECT, 0, &chip);
+	if (error < 0)
+		goto out;
+
+	card->private_data = chip;
+
+	error = snd_wss_pcm(chip, 0, &pcm);
+	if (error < 0)
+		goto out;
+
+	strcpy(card->driver, "CS4231");
+	strcpy(card->shortname, pcm->name);
+
+	sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
+		pcm->name, chip->port, irq[n], dma1[n]);
+	if (dma2[n] >= 0)
+		sprintf(card->longname + strlen(card->longname), "&%d", dma2[n]);
+
+	error = snd_wss_mixer(chip);
+	if (error < 0)
+		goto out;
+
+	error = snd_wss_timer(chip, 0, NULL);
+	if (error < 0)
+		goto out;
+
+	if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) {
+		if (mpu_irq[n] == SNDRV_AUTO_IRQ)
+			mpu_irq[n] = -1;
+		if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
+					mpu_port[n], 0, mpu_irq[n],
+					NULL) < 0)
+			dev_warn(dev, "MPU401 not detected\n");
+	}
+
+	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_cs4231_remove(struct device *dev, unsigned int n)
+{
+	snd_card_free(dev_get_drvdata(dev));
+	dev_set_drvdata(dev, NULL);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int snd_cs4231_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_cs4231_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_cs4231_driver = {
+	.match		= snd_cs4231_match,
+	.probe		= snd_cs4231_probe,
+	.remove		= __devexit_p(snd_cs4231_remove),
+#ifdef CONFIG_PM
+	.suspend	= snd_cs4231_suspend,
+	.resume		= snd_cs4231_resume,
+#endif
+	.driver		= {
+		.name	= DEV_NAME
+	}
+};
+
+static int __init alsa_card_cs4231_init(void)
+{
+	return isa_register_driver(&snd_cs4231_driver, SNDRV_CARDS);
+}
+
+static void __exit alsa_card_cs4231_exit(void)
+{
+	isa_unregister_driver(&snd_cs4231_driver);
+}
+
+module_init(alsa_card_cs4231_init);
+module_exit(alsa_card_cs4231_exit);