+++ /dev/null
-/*
- * Driver for Aztech Sound Galaxy cards
- * Copyright (c) by Christopher Butler <chrisb@sandy.force9.co.uk.
- *
- * I don't have documentation for this card, I based this driver on the
- * driver for OSS/Free included in the kernel source (drivers/sound/sgalaxy.c)
- *
- * 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/interrupt.h>
-#include <linux/moduleparam.h>
-#include <asm/dma.h>
-#include <sound/core.h>
-#include <sound/sb.h>
-#include <sound/wss.h>
-#include <sound/control.h>
-#define SNDRV_LEGACY_FIND_FREE_IRQ
-#define SNDRV_LEGACY_FIND_FREE_DMA
-#include <sound/initval.h>
-
-MODULE_AUTHOR("Christopher Butler <chrisb@sandy.force9.co.uk>");
-MODULE_DESCRIPTION("Aztech Sound Galaxy");
-MODULE_LICENSE("GPL");
-MODULE_SUPPORTED_DEVICE("{{Aztech Systems,Sound Galaxy}}");
-
-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 sbport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240 */
-static long wssport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x530,0xe80,0xf40,0x604 */
-static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 7,9,10,11 */
-static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3 */
-
-module_param_array(index, int, NULL, 0444);
-MODULE_PARM_DESC(index, "Index value for Sound Galaxy soundcard.");
-module_param_array(id, charp, NULL, 0444);
-MODULE_PARM_DESC(id, "ID string for Sound Galaxy soundcard.");
-module_param_array(sbport, long, NULL, 0444);
-MODULE_PARM_DESC(sbport, "Port # for Sound Galaxy SB driver.");
-module_param_array(wssport, long, NULL, 0444);
-MODULE_PARM_DESC(wssport, "Port # for Sound Galaxy WSS driver.");
-module_param_array(irq, int, NULL, 0444);
-MODULE_PARM_DESC(irq, "IRQ # for Sound Galaxy driver.");
-module_param_array(dma1, int, NULL, 0444);
-MODULE_PARM_DESC(dma1, "DMA1 # for Sound Galaxy driver.");
-
-#define SGALAXY_AUXC_LEFT 18
-#define SGALAXY_AUXC_RIGHT 19
-
-#define PFX "sgalaxy: "
-
-/*
-
- */
-
-#define AD1848P1( port, x ) ( port + c_d_c_AD1848##x )
-
-/* from lowlevel/sb/sb.c - to avoid having to allocate a struct snd_sb for the */
-/* short time we actually need it.. */
-
-static int snd_sgalaxy_sbdsp_reset(unsigned long port)
-{
- int i;
-
- outb(1, SBP1(port, RESET));
- udelay(10);
- outb(0, SBP1(port, RESET));
- udelay(30);
- for (i = 0; i < 1000 && !(inb(SBP1(port, DATA_AVAIL)) & 0x80); i++);
- if (inb(SBP1(port, READ)) != 0xaa) {
- snd_printd("sb_reset: failed at 0x%lx!!!\n", port);
- return -ENODEV;
- }
- return 0;
-}
-
-static int __devinit snd_sgalaxy_sbdsp_command(unsigned long port,
- unsigned char val)
-{
- int i;
-
- for (i = 10000; i; i--)
- if ((inb(SBP1(port, STATUS)) & 0x80) == 0) {
- outb(val, SBP1(port, COMMAND));
- return 1;
- }
-
- return 0;
-}
-
-static irqreturn_t snd_sgalaxy_dummy_interrupt(int irq, void *dev_id)
-{
- return IRQ_NONE;
-}
-
-static int __devinit snd_sgalaxy_setup_wss(unsigned long port, int irq, int dma)
-{
- static int interrupt_bits[] = {-1, -1, -1, -1, -1, -1, -1, 0x08, -1,
- 0x10, 0x18, 0x20, -1, -1, -1, -1};
- static int dma_bits[] = {1, 2, 0, 3};
- int tmp, tmp1;
-
- if ((tmp = inb(port + 3)) == 0xff)
- {
- snd_printdd("I/O address dead (0x%lx)\n", port);
- return 0;
- }
-#if 0
- snd_printdd("WSS signature = 0x%x\n", tmp);
-#endif
-
- if ((tmp & 0x3f) != 0x04 &&
- (tmp & 0x3f) != 0x0f &&
- (tmp & 0x3f) != 0x00) {
- snd_printdd("No WSS signature detected on port 0x%lx\n",
- port + 3);
- return 0;
- }
-
-#if 0
- snd_printdd(PFX "setting up IRQ/DMA for WSS\n");
-#endif
-
- /* initialize IRQ for WSS codec */
- tmp = interrupt_bits[irq % 16];
- if (tmp < 0)
- return -EINVAL;
-
- if (request_irq(irq, snd_sgalaxy_dummy_interrupt, IRQF_DISABLED, "sgalaxy", NULL)) {
- snd_printk(KERN_ERR "sgalaxy: can't grab irq %d\n", irq);
- return -EIO;
- }
-
- outb(tmp | 0x40, port);
- tmp1 = dma_bits[dma % 4];
- outb(tmp | tmp1, port);
-
- free_irq(irq, NULL);
-
- return 0;
-}
-
-static int __devinit snd_sgalaxy_detect(int dev, int irq, int dma)
-{
-#if 0
- snd_printdd(PFX "switching to WSS mode\n");
-#endif
-
- /* switch to WSS mode */
- snd_sgalaxy_sbdsp_reset(sbport[dev]);
-
- snd_sgalaxy_sbdsp_command(sbport[dev], 9);
- snd_sgalaxy_sbdsp_command(sbport[dev], 0);
-
- udelay(400);
- return snd_sgalaxy_setup_wss(wssport[dev], irq, dma);
-}
-
-static struct snd_kcontrol_new snd_sgalaxy_controls[] = {
-WSS_DOUBLE("Aux Playback Switch", 0,
- SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 7, 7, 1, 1),
-WSS_DOUBLE("Aux Playback Volume", 0,
- SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 0, 0, 31, 0)
-};
-
-static int __devinit snd_sgalaxy_mixer(struct snd_wss *chip)
-{
- struct snd_card *card = chip->card;
- struct snd_ctl_elem_id id1, id2;
- unsigned int idx;
- int err;
-
- memset(&id1, 0, sizeof(id1));
- memset(&id2, 0, sizeof(id2));
- id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
- /* reassign AUX0 to LINE */
- strcpy(id1.name, "Aux Playback Switch");
- strcpy(id2.name, "Line Playback Switch");
- if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
- return err;
- strcpy(id1.name, "Aux Playback Volume");
- strcpy(id2.name, "Line Playback Volume");
- if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
- return err;
- /* reassign AUX1 to FM */
- strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
- strcpy(id2.name, "FM Playback Switch");
- if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
- return err;
- strcpy(id1.name, "Aux Playback Volume");
- strcpy(id2.name, "FM Playback Volume");
- if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
- return err;
- /* build AUX2 input */
- for (idx = 0; idx < ARRAY_SIZE(snd_sgalaxy_controls); idx++) {
- err = snd_ctl_add(card,
- snd_ctl_new1(&snd_sgalaxy_controls[idx], chip));
- if (err < 0)
- return err;
- }
- return 0;
-}
-
-static int __devinit snd_sgalaxy_match(struct device *devptr, unsigned int dev)
-{
- if (!enable[dev])
- return 0;
- if (sbport[dev] == SNDRV_AUTO_PORT) {
- snd_printk(KERN_ERR PFX "specify SB port\n");
- return 0;
- }
- if (wssport[dev] == SNDRV_AUTO_PORT) {
- snd_printk(KERN_ERR PFX "specify WSS port\n");
- return 0;
- }
- return 1;
-}
-
-static int __devinit snd_sgalaxy_probe(struct device *devptr, unsigned int dev)
-{
- static int possible_irqs[] = {7, 9, 10, 11, -1};
- static int possible_dmas[] = {1, 3, 0, -1};
- int err, xirq, xdma1;
- struct snd_card *card;
- struct snd_wss *chip;
-
- err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
- if (err < 0)
- return err;
-
- xirq = irq[dev];
- if (xirq == SNDRV_AUTO_IRQ) {
- if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
- snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
- err = -EBUSY;
- goto _err;
- }
- }
- xdma1 = dma1[dev];
- if (xdma1 == SNDRV_AUTO_DMA) {
- if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
- snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
- err = -EBUSY;
- goto _err;
- }
- }
-
- if ((err = snd_sgalaxy_detect(dev, xirq, xdma1)) < 0)
- goto _err;
-
- err = snd_wss_create(card, wssport[dev] + 4, -1,
- xirq, xdma1, -1,
- WSS_HW_DETECT, 0, &chip);
- if (err < 0)
- goto _err;
- card->private_data = chip;
-
- err = snd_wss_pcm(chip, 0, NULL);
- if (err < 0) {
- snd_printdd(PFX "error creating new WSS PCM device\n");
- goto _err;
- }
- err = snd_wss_mixer(chip);
- if (err < 0) {
- snd_printdd(PFX "error creating new WSS mixer\n");
- goto _err;
- }
- if ((err = snd_sgalaxy_mixer(chip)) < 0) {
- snd_printdd(PFX "the mixer rewrite failed\n");
- goto _err;
- }
-
- strcpy(card->driver, "Sound Galaxy");
- strcpy(card->shortname, "Sound Galaxy");
- sprintf(card->longname, "Sound Galaxy at 0x%lx, irq %d, dma %d",
- wssport[dev], xirq, xdma1);
-
- snd_card_set_dev(card, devptr);
-
- if ((err = snd_card_register(card)) < 0)
- goto _err;
-
- dev_set_drvdata(devptr, card);
- return 0;
-
- _err:
- snd_card_free(card);
- return err;
-}
-
-static int __devexit snd_sgalaxy_remove(struct device *devptr, unsigned int dev)
-{
- snd_card_free(dev_get_drvdata(devptr));
- dev_set_drvdata(devptr, NULL);
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int snd_sgalaxy_suspend(struct device *pdev, unsigned int n,
- pm_message_t state)
-{
- struct snd_card *card = dev_get_drvdata(pdev);
- struct snd_wss *chip = card->private_data;
-
- snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
- chip->suspend(chip);
- return 0;
-}
-
-static int snd_sgalaxy_resume(struct device *pdev, unsigned int n)
-{
- struct snd_card *card = dev_get_drvdata(pdev);
- struct snd_wss *chip = card->private_data;
-
- chip->resume(chip);
- snd_wss_out(chip, SGALAXY_AUXC_LEFT, chip->image[SGALAXY_AUXC_LEFT]);
- snd_wss_out(chip, SGALAXY_AUXC_RIGHT, chip->image[SGALAXY_AUXC_RIGHT]);
-
- snd_power_change_state(card, SNDRV_CTL_POWER_D0);
- return 0;
-}
-#endif
-
-#define DEV_NAME "sgalaxy"
-
-static struct isa_driver snd_sgalaxy_driver = {
- .match = snd_sgalaxy_match,
- .probe = snd_sgalaxy_probe,
- .remove = __devexit_p(snd_sgalaxy_remove),
-#ifdef CONFIG_PM
- .suspend = snd_sgalaxy_suspend,
- .resume = snd_sgalaxy_resume,
-#endif
- .driver = {
- .name = DEV_NAME
- },
-};
-
-static int __init alsa_card_sgalaxy_init(void)
-{
- return isa_register_driver(&snd_sgalaxy_driver, SNDRV_CARDS);
-}
-
-static void __exit alsa_card_sgalaxy_exit(void)
-{
- isa_unregister_driver(&snd_sgalaxy_driver);
-}
-
-module_init(alsa_card_sgalaxy_init)
-module_exit(alsa_card_sgalaxy_exit)
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commitdiff