static int __devinit snd_als300_new_pcm(struct snd_als300 *chip) { struct snd_pcm *pcm; int err; snd_als300_dbgcallenter(); err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm); if (err < 0) return err; pcm->private_data = chip; strcpy(pcm->name, "ALS300"); chip->pcm = pcm; /* set operators */ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_als300_playback_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_als300_capture_ops); /* pre-allocation of buffers */ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), 64*1024, 64*1024); snd_als300_dbgcallleave(); return 0; }
static void snd_als300_init(struct snd_als300 *chip) { unsigned long flags; u32 tmp; snd_als300_dbgcallenter(); spin_lock_irqsave(&chip->reg_lock, flags); chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16) & 0x0000000F; /* Setup DRAM */ tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL); snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL, (tmp | DRAM_MODE_2) & ~WRITE_TRANS_START); /* Enable IRQ output */ snd_als300_set_irq_flag(chip, IRQ_ENABLE); /* Unmute hardware devices so their outputs get routed to * the onboard mixer */ tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp | VMUTE_NORMAL | MMUTE_NORMAL); /* Reset volumes */ snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0); /* Make sure playback transfer is stopped */ tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp & ~TRANSFER_START); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_als300_dbgcallleave(); }
static void __devexit snd_als300_remove(struct pci_dev *pci) { snd_als300_dbgcallenter(); snd_card_free(pci_get_drvdata(pci)); pci_set_drvdata(pci, NULL); snd_als300_dbgcallleave(); }
static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream) { u16 current_ptr; struct snd_als300 *chip = snd_pcm_substream_chip(substream); struct snd_als300_substream_data *data; unsigned short period_bytes; data = substream->runtime->private_data; period_bytes = snd_pcm_lib_period_bytes(substream); snd_als300_dbgcallenter(); spin_lock(&chip->reg_lock); current_ptr = (u16) snd_als300_gcr_read(chip->port, data->block_counter_register) + 4; spin_unlock(&chip->reg_lock); if (current_ptr > period_bytes) current_ptr = 0; else current_ptr = period_bytes - current_ptr; if (data->period_flipflop == 0) current_ptr += period_bytes; snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr); snd_als300_dbgcallleave(); return bytes_to_frames(substream->runtime, current_ptr); }
static int snd_als300_capture_prepare(struct snd_pcm_substream *substream) { u32 tmp; struct snd_als300 *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); snd_als300_dbgcallenter(); spin_lock_irq(&chip->reg_lock); tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL); tmp &= ~TRANSFER_START; snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes, buffer_bytes); /* set block size */ tmp &= 0xffff0000; tmp |= period_bytes - 1; /* set dma area */ snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp); snd_als300_gcr_write(chip->port, RECORD_START, runtime->dma_addr); snd_als300_gcr_write(chip->port, RECORD_END, runtime->dma_addr + buffer_bytes - 1); spin_unlock_irq(&chip->reg_lock); snd_als300_dbgcallleave(); return 0; }
static void snd_als300_init(struct snd_als300 *chip) { unsigned long flags; u32 tmp; snd_als300_dbgcallenter(); spin_lock_irqsave(&chip->reg_lock, flags); chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16) & 0x0000000F; /* */ tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL); snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL, (tmp | DRAM_MODE_2) & ~WRITE_TRANS_START); /* */ snd_als300_set_irq_flag(chip, IRQ_ENABLE); /* */ tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp | VMUTE_NORMAL | MMUTE_NORMAL); /* */ snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0); /* */ tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp & ~TRANSFER_START); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_als300_dbgcallleave(); }
static int snd_als300_free(struct snd_als300 *chip) { snd_als300_dbgcallenter(); snd_als300_set_irq_flag(chip, IRQ_DISABLE); if (chip->irq >= 0) free_irq(chip->irq, chip); pci_release_regions(chip->pci); pci_disable_device(chip->pci); kfree(chip); snd_als300_dbgcallleave(); return 0; }
static int snd_als300_capture_close(struct snd_pcm_substream *substream) { struct snd_als300 *chip = snd_pcm_substream_chip(substream); struct snd_als300_substream_data *data; data = substream->runtime->private_data; snd_als300_dbgcallenter(); kfree(data); chip->capture_substream = NULL; snd_pcm_lib_free_pages(substream); snd_als300_dbgcallleave(); return 0; }
static int snd_als300_capture_open(struct snd_pcm_substream *substream) { struct snd_als300 *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; struct snd_als300_substream_data *data = kzalloc(sizeof(*data), GFP_KERNEL); snd_als300_dbgcallenter(); chip->capture_substream = substream; runtime->hw = snd_als300_capture_hw; runtime->private_data = data; data->control_register = RECORD_CONTROL; data->block_counter_register = RECORD_BLOCK_COUNTER; snd_als300_dbgcallleave(); return 0; }
/* Enable/Disable Interrupts */ static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd) { u32 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); snd_als300_dbgcallenter(); /* boolean XOR check, since old vs. new hardware have directly reversed bit setting for ENABLE and DISABLE. ALS300+ acts like newer versions of ALS300 */ if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^ (cmd == IRQ_ENABLE)) == 0) tmp |= IRQ_SET_BIT; else tmp &= ~IRQ_SET_BIT; snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp); snd_als300_dbgcallleave(); }
static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd) { u32 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); snd_als300_dbgcallenter(); /* */ if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^ (cmd == IRQ_ENABLE)) == 0) tmp |= IRQ_SET_BIT; else tmp &= ~IRQ_SET_BIT; snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp); snd_als300_dbgcallleave(); }
static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd) { struct snd_als300 *chip = snd_pcm_substream_chip(substream); u32 tmp; struct snd_als300_substream_data *data; unsigned short reg; int ret = 0; data = substream->runtime->private_data; reg = data->control_register; snd_als300_dbgcallenter(); spin_lock(&chip->reg_lock); switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: tmp = snd_als300_gcr_read(chip->port, reg); data->period_flipflop = 1; snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START); snd_als300_dbgplay("TRIGGER START\n"); break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: tmp = snd_als300_gcr_read(chip->port, reg); snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START); snd_als300_dbgplay("TRIGGER STOP\n"); break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: tmp = snd_als300_gcr_read(chip->port, reg); snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE); snd_als300_dbgplay("TRIGGER PAUSE\n"); break; case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: tmp = snd_als300_gcr_read(chip->port, reg); snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE); snd_als300_dbgplay("TRIGGER RELEASE\n"); break; default: snd_als300_dbgplay("TRIGGER INVALID\n"); ret = -EINVAL; } spin_unlock(&chip->reg_lock); snd_als300_dbgcallleave(); return ret; }
static int snd_als300_ac97(struct snd_als300 *chip) { struct snd_ac97_bus *bus; struct snd_ac97_template ac97; int err; static struct snd_ac97_bus_ops ops = { .write = snd_als300_ac97_write, .read = snd_als300_ac97_read, }; snd_als300_dbgcallenter(); if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus)) < 0) return err; memset(&ac97, 0, sizeof(ac97)); ac97.private_data = chip; snd_als300_dbgcallleave(); return snd_ac97_mixer(bus, &ac97, &chip->ac97); }
static int __devinit snd_als300_create(struct snd_card *card, struct pci_dev *pci, int chip_type, struct snd_als300 **rchip) { struct snd_als300 *chip; void *irq_handler; int err; static struct snd_device_ops ops = { .dev_free = snd_als300_dev_free, }; *rchip = NULL; snd_als300_dbgcallenter(); if ((err = pci_enable_device(pci)) < 0) return err; if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 || pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) { printk(KERN_ERR "error setting 28bit DMA mask\n"); pci_disable_device(pci); return -ENXIO; } pci_set_master(pci); chip = kzalloc(sizeof(*chip), GFP_KERNEL); if (chip == NULL) { pci_disable_device(pci); return -ENOMEM; } chip->card = card; chip->pci = pci; chip->irq = -1; chip->chip_type = chip_type; spin_lock_init(&chip->reg_lock); if ((err = pci_request_regions(pci, "ALS300")) < 0) { kfree(chip); pci_disable_device(pci); return err; } chip->port = pci_resource_start(pci, 0); if (chip->chip_type == DEVICE_ALS300_PLUS) irq_handler = snd_als300plus_interrupt; else irq_handler = snd_als300_interrupt; if (request_irq(pci->irq, irq_handler, IRQF_SHARED, card->shortname, chip)) { snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq); snd_als300_free(chip); return -EBUSY; } chip->irq = pci->irq; snd_als300_init(chip); err = snd_als300_ac97(chip); if (err < 0) { snd_printk(KERN_WARNING "Could not create ac97\n"); snd_als300_free(chip); return err; } if ((err = snd_als300_new_pcm(chip)) < 0) { snd_printk(KERN_WARNING "Could not create PCM\n"); snd_als300_free(chip); return err; } if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { snd_als300_free(chip); return err; } snd_card_set_dev(card, &pci->dev); *rchip = chip; snd_als300_dbgcallleave(); return 0; }