diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/pci/cs5535audio/cs5535audio.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/pci/cs5535audio/cs5535audio.c | 424 |
1 files changed, 0 insertions, 424 deletions
diff --git a/ANDROID_3.4.5/sound/pci/cs5535audio/cs5535audio.c b/ANDROID_3.4.5/sound/pci/cs5535audio/cs5535audio.c deleted file mode 100644 index a2fb2173..00000000 --- a/ANDROID_3.4.5/sound/pci/cs5535audio/cs5535audio.c +++ /dev/null @@ -1,424 +0,0 @@ -/* - * Driver for audio on multifunction CS5535/6 companion device - * Copyright (C) Jaya Kumar - * - * Based on Jaroslav Kysela and Takashi Iwai's examples. - * This work was sponsored by CIS(M) Sdn Bhd. - * - * 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/delay.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/slab.h> -#include <linux/module.h> -#include <asm/io.h> -#include <sound/core.h> -#include <sound/control.h> -#include <sound/pcm.h> -#include <sound/rawmidi.h> -#include <sound/ac97_codec.h> -#include <sound/initval.h> -#include <sound/asoundef.h> -#include "cs5535audio.h" - -#define DRIVER_NAME "cs5535audio" - -static char *ac97_quirk; -module_param(ac97_quirk, charp, 0444); -MODULE_PARM_DESC(ac97_quirk, "AC'97 board specific workarounds."); - -static struct ac97_quirk ac97_quirks[] __devinitdata = { -#if 0 /* Not yet confirmed if all 5536 boards are HP only */ - { - .subvendor = PCI_VENDOR_ID_AMD, - .subdevice = PCI_DEVICE_ID_AMD_CS5536_AUDIO, - .name = "AMD RDK", - .type = AC97_TUNE_HP_ONLY - }, -#endif - {} -}; - -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 " DRIVER_NAME); -module_param_array(id, charp, NULL, 0444); -MODULE_PARM_DESC(id, "ID string for " DRIVER_NAME); -module_param_array(enable, bool, NULL, 0444); -MODULE_PARM_DESC(enable, "Enable " DRIVER_NAME); - -static DEFINE_PCI_DEVICE_TABLE(snd_cs5535audio_ids) = { - { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_CS5535_AUDIO) }, - { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_AUDIO) }, - {} -}; - -MODULE_DEVICE_TABLE(pci, snd_cs5535audio_ids); - -static void wait_till_cmd_acked(struct cs5535audio *cs5535au, unsigned long timeout) -{ - unsigned int tmp; - do { - tmp = cs_readl(cs5535au, ACC_CODEC_CNTL); - if (!(tmp & CMD_NEW)) - break; - udelay(1); - } while (--timeout); - if (!timeout) - snd_printk(KERN_ERR "Failure writing to cs5535 codec\n"); -} - -static unsigned short snd_cs5535audio_codec_read(struct cs5535audio *cs5535au, - unsigned short reg) -{ - unsigned int regdata; - unsigned int timeout; - unsigned int val; - - regdata = ((unsigned int) reg) << 24; - regdata |= ACC_CODEC_CNTL_RD_CMD; - regdata |= CMD_NEW; - - cs_writel(cs5535au, ACC_CODEC_CNTL, regdata); - wait_till_cmd_acked(cs5535au, 50); - - timeout = 50; - do { - val = cs_readl(cs5535au, ACC_CODEC_STATUS); - if ((val & STS_NEW) && reg == (val >> 24)) - break; - udelay(1); - } while (--timeout); - if (!timeout) - snd_printk(KERN_ERR "Failure reading codec reg 0x%x," - "Last value=0x%x\n", reg, val); - - return (unsigned short) val; -} - -static void snd_cs5535audio_codec_write(struct cs5535audio *cs5535au, - unsigned short reg, unsigned short val) -{ - unsigned int regdata; - - regdata = ((unsigned int) reg) << 24; - regdata |= val; - regdata &= CMD_MASK; - regdata |= CMD_NEW; - regdata &= ACC_CODEC_CNTL_WR_CMD; - - cs_writel(cs5535au, ACC_CODEC_CNTL, regdata); - wait_till_cmd_acked(cs5535au, 50); -} - -static void snd_cs5535audio_ac97_codec_write(struct snd_ac97 *ac97, - unsigned short reg, unsigned short val) -{ - struct cs5535audio *cs5535au = ac97->private_data; - snd_cs5535audio_codec_write(cs5535au, reg, val); -} - -static unsigned short snd_cs5535audio_ac97_codec_read(struct snd_ac97 *ac97, - unsigned short reg) -{ - struct cs5535audio *cs5535au = ac97->private_data; - return snd_cs5535audio_codec_read(cs5535au, reg); -} - -static int __devinit snd_cs5535audio_mixer(struct cs5535audio *cs5535au) -{ - struct snd_card *card = cs5535au->card; - struct snd_ac97_bus *pbus; - struct snd_ac97_template ac97; - int err; - static struct snd_ac97_bus_ops ops = { - .write = snd_cs5535audio_ac97_codec_write, - .read = snd_cs5535audio_ac97_codec_read, - }; - - if ((err = snd_ac97_bus(card, 0, &ops, NULL, &pbus)) < 0) - return err; - - memset(&ac97, 0, sizeof(ac97)); - ac97.scaps = AC97_SCAP_AUDIO | AC97_SCAP_SKIP_MODEM - | AC97_SCAP_POWER_SAVE; - ac97.private_data = cs5535au; - ac97.pci = cs5535au->pci; - - /* set any OLPC-specific scaps */ - olpc_prequirks(card, &ac97); - - if ((err = snd_ac97_mixer(pbus, &ac97, &cs5535au->ac97)) < 0) { - snd_printk(KERN_ERR "mixer failed\n"); - return err; - } - - snd_ac97_tune_hardware(cs5535au->ac97, ac97_quirks, ac97_quirk); - - err = olpc_quirks(card, cs5535au->ac97); - if (err < 0) { - snd_printk(KERN_ERR "olpc quirks failed\n"); - return err; - } - - return 0; -} - -static void process_bm0_irq(struct cs5535audio *cs5535au) -{ - u8 bm_stat; - spin_lock(&cs5535au->reg_lock); - bm_stat = cs_readb(cs5535au, ACC_BM0_STATUS); - spin_unlock(&cs5535au->reg_lock); - if (bm_stat & EOP) { - struct cs5535audio_dma *dma; - dma = cs5535au->playback_substream->runtime->private_data; - snd_pcm_period_elapsed(cs5535au->playback_substream); - } else { - snd_printk(KERN_ERR "unexpected bm0 irq src, bm_stat=%x\n", - bm_stat); - } -} - -static void process_bm1_irq(struct cs5535audio *cs5535au) -{ - u8 bm_stat; - spin_lock(&cs5535au->reg_lock); - bm_stat = cs_readb(cs5535au, ACC_BM1_STATUS); - spin_unlock(&cs5535au->reg_lock); - if (bm_stat & EOP) { - struct cs5535audio_dma *dma; - dma = cs5535au->capture_substream->runtime->private_data; - snd_pcm_period_elapsed(cs5535au->capture_substream); - } -} - -static irqreturn_t snd_cs5535audio_interrupt(int irq, void *dev_id) -{ - u16 acc_irq_stat; - unsigned char count; - struct cs5535audio *cs5535au = dev_id; - - if (cs5535au == NULL) - return IRQ_NONE; - - acc_irq_stat = cs_readw(cs5535au, ACC_IRQ_STATUS); - - if (!acc_irq_stat) - return IRQ_NONE; - for (count = 0; count < 4; count++) { - if (acc_irq_stat & (1 << count)) { - switch (count) { - case IRQ_STS: - cs_readl(cs5535au, ACC_GPIO_STATUS); - break; - case WU_IRQ_STS: - cs_readl(cs5535au, ACC_GPIO_STATUS); - break; - case BM0_IRQ_STS: - process_bm0_irq(cs5535au); - break; - case BM1_IRQ_STS: - process_bm1_irq(cs5535au); - break; - default: - snd_printk(KERN_ERR "Unexpected irq src: " - "0x%x\n", acc_irq_stat); - break; - } - } - } - return IRQ_HANDLED; -} - -static int snd_cs5535audio_free(struct cs5535audio *cs5535au) -{ - synchronize_irq(cs5535au->irq); - pci_set_power_state(cs5535au->pci, 3); - - if (cs5535au->irq >= 0) - free_irq(cs5535au->irq, cs5535au); - - pci_release_regions(cs5535au->pci); - pci_disable_device(cs5535au->pci); - kfree(cs5535au); - return 0; -} - -static int snd_cs5535audio_dev_free(struct snd_device *device) -{ - struct cs5535audio *cs5535au = device->device_data; - return snd_cs5535audio_free(cs5535au); -} - -static int __devinit snd_cs5535audio_create(struct snd_card *card, - struct pci_dev *pci, - struct cs5535audio **rcs5535au) -{ - struct cs5535audio *cs5535au; - - int err; - static struct snd_device_ops ops = { - .dev_free = snd_cs5535audio_dev_free, - }; - - *rcs5535au = NULL; - if ((err = pci_enable_device(pci)) < 0) - return err; - - if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 || - pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) { - printk(KERN_WARNING "unable to get 32bit dma\n"); - err = -ENXIO; - goto pcifail; - } - - cs5535au = kzalloc(sizeof(*cs5535au), GFP_KERNEL); - if (cs5535au == NULL) { - err = -ENOMEM; - goto pcifail; - } - - spin_lock_init(&cs5535au->reg_lock); - cs5535au->card = card; - cs5535au->pci = pci; - cs5535au->irq = -1; - - if ((err = pci_request_regions(pci, "CS5535 Audio")) < 0) { - kfree(cs5535au); - goto pcifail; - } - - cs5535au->port = pci_resource_start(pci, 0); - - if (request_irq(pci->irq, snd_cs5535audio_interrupt, - IRQF_SHARED, KBUILD_MODNAME, cs5535au)) { - snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq); - err = -EBUSY; - goto sndfail; - } - - cs5535au->irq = pci->irq; - pci_set_master(pci); - - if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, - cs5535au, &ops)) < 0) - goto sndfail; - - snd_card_set_dev(card, &pci->dev); - - *rcs5535au = cs5535au; - return 0; - -sndfail: /* leave the device alive, just kill the snd */ - snd_cs5535audio_free(cs5535au); - return err; - -pcifail: - pci_disable_device(pci); - return err; -} - -static int __devinit snd_cs5535audio_probe(struct pci_dev *pci, - const struct pci_device_id *pci_id) -{ - static int dev; - struct snd_card *card; - struct cs5535audio *cs5535au; - 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; - - if ((err = snd_cs5535audio_create(card, pci, &cs5535au)) < 0) - goto probefail_out; - - card->private_data = cs5535au; - - if ((err = snd_cs5535audio_mixer(cs5535au)) < 0) - goto probefail_out; - - if ((err = snd_cs5535audio_pcm(cs5535au)) < 0) - goto probefail_out; - - strcpy(card->driver, DRIVER_NAME); - - strcpy(card->shortname, "CS5535 Audio"); - sprintf(card->longname, "%s %s at 0x%lx, irq %i", - card->shortname, card->driver, - cs5535au->port, cs5535au->irq); - - if ((err = snd_card_register(card)) < 0) - goto probefail_out; - - pci_set_drvdata(pci, card); - dev++; - return 0; - -probefail_out: - snd_card_free(card); - return err; -} - -static void __devexit snd_cs5535audio_remove(struct pci_dev *pci) -{ - olpc_quirks_cleanup(); - snd_card_free(pci_get_drvdata(pci)); - pci_set_drvdata(pci, NULL); -} - -static struct pci_driver driver = { - .name = KBUILD_MODNAME, - .id_table = snd_cs5535audio_ids, - .probe = snd_cs5535audio_probe, - .remove = __devexit_p(snd_cs5535audio_remove), -#ifdef CONFIG_PM - .suspend = snd_cs5535audio_suspend, - .resume = snd_cs5535audio_resume, -#endif -}; - -static int __init alsa_card_cs5535audio_init(void) -{ - return pci_register_driver(&driver); -} - -static void __exit alsa_card_cs5535audio_exit(void) -{ - pci_unregister_driver(&driver); -} - -module_init(alsa_card_cs5535audio_init) -module_exit(alsa_card_cs5535audio_exit) - -MODULE_AUTHOR("Jaya Kumar"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("CS5535 Audio"); -MODULE_SUPPORTED_DEVICE("CS5535 Audio"); |