diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/pci/cs5530.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/pci/cs5530.c | 313 |
1 files changed, 0 insertions, 313 deletions
diff --git a/ANDROID_3.4.5/sound/pci/cs5530.c b/ANDROID_3.4.5/sound/pci/cs5530.c deleted file mode 100644 index c47cabff..00000000 --- a/ANDROID_3.4.5/sound/pci/cs5530.c +++ /dev/null @@ -1,313 +0,0 @@ -/* - * cs5530.c - Initialisation code for Cyrix/NatSemi VSA1 softaudio - * - * (C) Copyright 2007 Ash Willis <ashwillis@programmer.net> - * (C) Copyright 2003 Red Hat Inc <alan@lxorguk.ukuu.org.uk> - * - * This driver was ported (shamelessly ripped ;) from oss/kahlua.c but I did - * mess with it a bit. The chip seems to have to have trouble with full duplex - * mode. If we're recording in 8bit 8000kHz, say, and we then attempt to - * simultaneously play back audio at 16bit 44100kHz, the device actually plays - * back in the same format in which it is capturing. By forcing the chip to - * always play/capture in 16/44100, we can let alsa-lib convert the samples and - * that way we can hack up some full duplex audio. - * - * XpressAudio(tm) is used on the Cyrix MediaGX (now NatSemi Geode) systems. - * The older version (VSA1) provides fairly good soundblaster emulation - * although there are a couple of bugs: large DMA buffers break record, - * and the MPU event handling seems suspect. VSA2 allows the native driver - * to control the AC97 audio engine directly and requires a different driver. - * - * Thanks to National Semiconductor for providing the needed information - * on the XpressAudio(tm) internals. - * - * 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, 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. - * - * TO DO: - * Investigate whether we can portably support Cognac (5520) in the - * same manner. - */ - -#include <linux/delay.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/slab.h> -#include <sound/core.h> -#include <sound/sb.h> -#include <sound/initval.h> - -MODULE_AUTHOR("Ash Willis"); -MODULE_DESCRIPTION("CS5530 Audio"); -MODULE_LICENSE("GPL"); - -static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; -static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; -static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; - -module_param_array(index, int, NULL, 0444); -MODULE_PARM_DESC(index, "Index value for CS5530 Audio driver."); -module_param_array(id, charp, NULL, 0444); -MODULE_PARM_DESC(id, "ID string for CS5530 Audio driver."); -module_param_array(enable, bool, NULL, 0444); -MODULE_PARM_DESC(enable, "Enable CS5530 Audio driver."); - -struct snd_cs5530 { - struct snd_card *card; - struct pci_dev *pci; - struct snd_sb *sb; - unsigned long pci_base; -}; - -static DEFINE_PCI_DEVICE_TABLE(snd_cs5530_ids) = { - {PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_AUDIO, PCI_ANY_ID, - PCI_ANY_ID, 0, 0}, - {0,} -}; - -MODULE_DEVICE_TABLE(pci, snd_cs5530_ids); - -static int snd_cs5530_free(struct snd_cs5530 *chip) -{ - pci_release_regions(chip->pci); - pci_disable_device(chip->pci); - kfree(chip); - return 0; -} - -static int snd_cs5530_dev_free(struct snd_device *device) -{ - struct snd_cs5530 *chip = device->device_data; - return snd_cs5530_free(chip); -} - -static void __devexit snd_cs5530_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); - pci_set_drvdata(pci, NULL); -} - -static u8 __devinit snd_cs5530_mixer_read(unsigned long io, u8 reg) -{ - outb(reg, io + 4); - udelay(20); - reg = inb(io + 5); - udelay(20); - return reg; -} - -static int __devinit snd_cs5530_create(struct snd_card *card, - struct pci_dev *pci, - struct snd_cs5530 **rchip) -{ - struct snd_cs5530 *chip; - unsigned long sb_base; - u8 irq, dma8, dma16 = 0; - u16 map; - void __iomem *mem; - int err; - - static struct snd_device_ops ops = { - .dev_free = snd_cs5530_dev_free, - }; - *rchip = NULL; - - err = pci_enable_device(pci); - if (err < 0) - return err; - - chip = kzalloc(sizeof(*chip), GFP_KERNEL); - if (chip == NULL) { - pci_disable_device(pci); - return -ENOMEM; - } - - chip->card = card; - chip->pci = pci; - - err = pci_request_regions(pci, "CS5530"); - if (err < 0) { - kfree(chip); - pci_disable_device(pci); - return err; - } - chip->pci_base = pci_resource_start(pci, 0); - - mem = pci_ioremap_bar(pci, 0); - if (mem == NULL) { - kfree(chip); - pci_disable_device(pci); - return -EBUSY; - } - - map = readw(mem + 0x18); - iounmap(mem); - - /* Map bits - 0:1 * 0x20 + 0x200 = sb base - 2 sb enable - 3 adlib enable - 5 MPU enable 0x330 - 6 MPU enable 0x300 - - The other bits may be used internally so must be masked */ - - sb_base = 0x220 + 0x20 * (map & 3); - - if (map & (1<<2)) - printk(KERN_INFO "CS5530: XpressAudio at 0x%lx\n", sb_base); - else { - printk(KERN_ERR "Could not find XpressAudio!\n"); - snd_cs5530_free(chip); - return -ENODEV; - } - - if (map & (1<<5)) - printk(KERN_INFO "CS5530: MPU at 0x300\n"); - else if (map & (1<<6)) - printk(KERN_INFO "CS5530: MPU at 0x330\n"); - - irq = snd_cs5530_mixer_read(sb_base, 0x80) & 0x0F; - dma8 = snd_cs5530_mixer_read(sb_base, 0x81); - - if (dma8 & 0x20) - dma16 = 5; - else if (dma8 & 0x40) - dma16 = 6; - else if (dma8 & 0x80) - dma16 = 7; - else { - printk(KERN_ERR "CS5530: No 16bit DMA enabled\n"); - snd_cs5530_free(chip); - return -ENODEV; - } - - if (dma8 & 0x01) - dma8 = 0; - else if (dma8 & 02) - dma8 = 1; - else if (dma8 & 0x08) - dma8 = 3; - else { - printk(KERN_ERR "CS5530: No 8bit DMA enabled\n"); - snd_cs5530_free(chip); - return -ENODEV; - } - - if (irq & 1) - irq = 9; - else if (irq & 2) - irq = 5; - else if (irq & 4) - irq = 7; - else if (irq & 8) - irq = 10; - else { - printk(KERN_ERR "CS5530: SoundBlaster IRQ not set\n"); - snd_cs5530_free(chip); - return -ENODEV; - } - - printk(KERN_INFO "CS5530: IRQ: %d DMA8: %d DMA16: %d\n", irq, dma8, - dma16); - - err = snd_sbdsp_create(card, sb_base, irq, snd_sb16dsp_interrupt, dma8, - dma16, SB_HW_CS5530, &chip->sb); - if (err < 0) { - printk(KERN_ERR "CS5530: Could not create SoundBlaster\n"); - snd_cs5530_free(chip); - return err; - } - - err = snd_sb16dsp_pcm(chip->sb, 0, &chip->sb->pcm); - if (err < 0) { - printk(KERN_ERR "CS5530: Could not create PCM\n"); - snd_cs5530_free(chip); - return err; - } - - err = snd_sbmixer_new(chip->sb); - if (err < 0) { - printk(KERN_ERR "CS5530: Could not create Mixer\n"); - snd_cs5530_free(chip); - return err; - } - - err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); - if (err < 0) { - snd_cs5530_free(chip); - return err; - } - - snd_card_set_dev(card, &pci->dev); - *rchip = chip; - return 0; -} - -static int __devinit snd_cs5530_probe(struct pci_dev *pci, - const struct pci_device_id *pci_id) -{ - static int dev; - struct snd_card *card; - struct snd_cs5530 *chip = NULL; - int err; - - if (dev >= SNDRV_CARDS) - return -ENODEV; - if (!enable[dev]) { - dev++; - return -ENOENT; - } - - err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); - - if (err < 0) - return err; - - err = snd_cs5530_create(card, pci, &chip); - if (err < 0) { - snd_card_free(card); - return err; - } - - strcpy(card->driver, "CS5530"); - strcpy(card->shortname, "CS5530 Audio"); - sprintf(card->longname, "%s at 0x%lx", card->shortname, chip->pci_base); - - err = snd_card_register(card); - if (err < 0) { - snd_card_free(card); - return err; - } - pci_set_drvdata(pci, card); - dev++; - return 0; -} - -static struct pci_driver driver = { - .name = KBUILD_MODNAME, - .id_table = snd_cs5530_ids, - .probe = snd_cs5530_probe, - .remove = __devexit_p(snd_cs5530_remove), -}; - -static int __init alsa_card_cs5530_init(void) -{ - return pci_register_driver(&driver); -} - -static void __exit alsa_card_cs5530_exit(void) -{ - pci_unregister_driver(&driver); -} - -module_init(alsa_card_cs5530_init) -module_exit(alsa_card_cs5530_exit) - |