diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/drivers/opl4/opl4_lib.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/drivers/opl4/opl4_lib.c | 281 |
1 files changed, 0 insertions, 281 deletions
diff --git a/ANDROID_3.4.5/sound/drivers/opl4/opl4_lib.c b/ANDROID_3.4.5/sound/drivers/opl4/opl4_lib.c deleted file mode 100644 index b953fb4a..00000000 --- a/ANDROID_3.4.5/sound/drivers/opl4/opl4_lib.c +++ /dev/null @@ -1,281 +0,0 @@ -/* - * Functions for accessing OPL4 devices - * Copyright (c) 2003 by Clemens Ladisch <clemens@ladisch.de> - * - * 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 "opl4_local.h" -#include <sound/initval.h> -#include <linux/ioport.h> -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/module.h> -#include <asm/io.h> - -MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); -MODULE_DESCRIPTION("OPL4 driver"); -MODULE_LICENSE("GPL"); - -static void inline snd_opl4_wait(struct snd_opl4 *opl4) -{ - int timeout = 10; - while ((inb(opl4->fm_port) & OPL4_STATUS_BUSY) && --timeout > 0) - ; -} - -void snd_opl4_write(struct snd_opl4 *opl4, u8 reg, u8 value) -{ - snd_opl4_wait(opl4); - outb(reg, opl4->pcm_port); - - snd_opl4_wait(opl4); - outb(value, opl4->pcm_port + 1); -} - -EXPORT_SYMBOL(snd_opl4_write); - -u8 snd_opl4_read(struct snd_opl4 *opl4, u8 reg) -{ - snd_opl4_wait(opl4); - outb(reg, opl4->pcm_port); - - snd_opl4_wait(opl4); - return inb(opl4->pcm_port + 1); -} - -EXPORT_SYMBOL(snd_opl4_read); - -void snd_opl4_read_memory(struct snd_opl4 *opl4, char *buf, int offset, int size) -{ - unsigned long flags; - u8 memcfg; - - spin_lock_irqsave(&opl4->reg_lock, flags); - - memcfg = snd_opl4_read(opl4, OPL4_REG_MEMORY_CONFIGURATION); - snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, memcfg | OPL4_MODE_BIT); - - snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_HIGH, offset >> 16); - snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_MID, offset >> 8); - snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_LOW, offset); - - snd_opl4_wait(opl4); - outb(OPL4_REG_MEMORY_DATA, opl4->pcm_port); - snd_opl4_wait(opl4); - insb(opl4->pcm_port + 1, buf, size); - - snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, memcfg); - - spin_unlock_irqrestore(&opl4->reg_lock, flags); -} - -EXPORT_SYMBOL(snd_opl4_read_memory); - -void snd_opl4_write_memory(struct snd_opl4 *opl4, const char *buf, int offset, int size) -{ - unsigned long flags; - u8 memcfg; - - spin_lock_irqsave(&opl4->reg_lock, flags); - - memcfg = snd_opl4_read(opl4, OPL4_REG_MEMORY_CONFIGURATION); - snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, memcfg | OPL4_MODE_BIT); - - snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_HIGH, offset >> 16); - snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_MID, offset >> 8); - snd_opl4_write(opl4, OPL4_REG_MEMORY_ADDRESS_LOW, offset); - - snd_opl4_wait(opl4); - outb(OPL4_REG_MEMORY_DATA, opl4->pcm_port); - snd_opl4_wait(opl4); - outsb(opl4->pcm_port + 1, buf, size); - - snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, memcfg); - - spin_unlock_irqrestore(&opl4->reg_lock, flags); -} - -EXPORT_SYMBOL(snd_opl4_write_memory); - -static void snd_opl4_enable_opl4(struct snd_opl4 *opl4) -{ - outb(OPL3_REG_MODE, opl4->fm_port + 2); - inb(opl4->fm_port); - inb(opl4->fm_port); - outb(OPL3_OPL3_ENABLE | OPL3_OPL4_ENABLE, opl4->fm_port + 3); - inb(opl4->fm_port); - inb(opl4->fm_port); -} - -static int snd_opl4_detect(struct snd_opl4 *opl4) -{ - u8 id1, id2; - - snd_opl4_enable_opl4(opl4); - - id1 = snd_opl4_read(opl4, OPL4_REG_MEMORY_CONFIGURATION); - snd_printdd("OPL4[02]=%02x\n", id1); - switch (id1 & OPL4_DEVICE_ID_MASK) { - case 0x20: - opl4->hardware = OPL3_HW_OPL4; - break; - case 0x40: - opl4->hardware = OPL3_HW_OPL4_ML; - break; - default: - return -ENODEV; - } - - snd_opl4_write(opl4, OPL4_REG_MIX_CONTROL_FM, 0x00); - snd_opl4_write(opl4, OPL4_REG_MIX_CONTROL_PCM, 0xff); - id1 = snd_opl4_read(opl4, OPL4_REG_MIX_CONTROL_FM); - id2 = snd_opl4_read(opl4, OPL4_REG_MIX_CONTROL_PCM); - snd_printdd("OPL4 id1=%02x id2=%02x\n", id1, id2); - if (id1 != 0x00 || id2 != 0xff) - return -ENODEV; - - snd_opl4_write(opl4, OPL4_REG_MIX_CONTROL_FM, 0x3f); - snd_opl4_write(opl4, OPL4_REG_MIX_CONTROL_PCM, 0x3f); - snd_opl4_write(opl4, OPL4_REG_MEMORY_CONFIGURATION, 0x00); - return 0; -} - -#if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE)) -static void snd_opl4_seq_dev_free(struct snd_seq_device *seq_dev) -{ - struct snd_opl4 *opl4 = seq_dev->private_data; - opl4->seq_dev = NULL; -} - -static int snd_opl4_create_seq_dev(struct snd_opl4 *opl4, int seq_device) -{ - opl4->seq_dev_num = seq_device; - if (snd_seq_device_new(opl4->card, seq_device, SNDRV_SEQ_DEV_ID_OPL4, - sizeof(struct snd_opl4 *), &opl4->seq_dev) >= 0) { - strcpy(opl4->seq_dev->name, "OPL4 Wavetable"); - *(struct snd_opl4 **)SNDRV_SEQ_DEVICE_ARGPTR(opl4->seq_dev) = opl4; - opl4->seq_dev->private_data = opl4; - opl4->seq_dev->private_free = snd_opl4_seq_dev_free; - } - return 0; -} -#endif - -static void snd_opl4_free(struct snd_opl4 *opl4) -{ -#ifdef CONFIG_PROC_FS - snd_opl4_free_proc(opl4); -#endif - release_and_free_resource(opl4->res_fm_port); - release_and_free_resource(opl4->res_pcm_port); - kfree(opl4); -} - -static int snd_opl4_dev_free(struct snd_device *device) -{ - struct snd_opl4 *opl4 = device->device_data; - snd_opl4_free(opl4); - return 0; -} - -int snd_opl4_create(struct snd_card *card, - unsigned long fm_port, unsigned long pcm_port, - int seq_device, - struct snd_opl3 **ropl3, struct snd_opl4 **ropl4) -{ - struct snd_opl4 *opl4; - struct snd_opl3 *opl3; - int err; - static struct snd_device_ops ops = { - .dev_free = snd_opl4_dev_free - }; - - if (ropl3) - *ropl3 = NULL; - if (ropl4) - *ropl4 = NULL; - - opl4 = kzalloc(sizeof(*opl4), GFP_KERNEL); - if (!opl4) - return -ENOMEM; - - opl4->res_fm_port = request_region(fm_port, 8, "OPL4 FM"); - opl4->res_pcm_port = request_region(pcm_port, 8, "OPL4 PCM/MIX"); - if (!opl4->res_fm_port || !opl4->res_pcm_port) { - snd_printk(KERN_ERR "opl4: can't grab ports 0x%lx, 0x%lx\n", fm_port, pcm_port); - snd_opl4_free(opl4); - return -EBUSY; - } - - opl4->card = card; - opl4->fm_port = fm_port; - opl4->pcm_port = pcm_port; - spin_lock_init(&opl4->reg_lock); - mutex_init(&opl4->access_mutex); - - err = snd_opl4_detect(opl4); - if (err < 0) { - snd_opl4_free(opl4); - snd_printd("OPL4 chip not detected at %#lx/%#lx\n", fm_port, pcm_port); - return err; - } - - err = snd_device_new(card, SNDRV_DEV_CODEC, opl4, &ops); - if (err < 0) { - snd_opl4_free(opl4); - return err; - } - - err = snd_opl3_create(card, fm_port, fm_port + 2, opl4->hardware, 1, &opl3); - if (err < 0) { - snd_device_free(card, opl4); - return err; - } - - /* opl3 initialization disabled opl4, so reenable */ - snd_opl4_enable_opl4(opl4); - - snd_opl4_create_mixer(opl4); -#ifdef CONFIG_PROC_FS - snd_opl4_create_proc(opl4); -#endif - -#if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE)) - opl4->seq_client = -1; - if (opl4->hardware < OPL3_HW_OPL4_ML) - snd_opl4_create_seq_dev(opl4, seq_device); -#endif - - if (ropl3) - *ropl3 = opl3; - if (ropl4) - *ropl4 = opl4; - return 0; -} - -EXPORT_SYMBOL(snd_opl4_create); - -static int __init alsa_opl4_init(void) -{ - return 0; -} - -static void __exit alsa_opl4_exit(void) -{ -} - -module_init(alsa_opl4_init) -module_exit(alsa_opl4_exit) |