| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Ash Willis | 3192 | 92.74% | 2 | 6.25% |
| Takashi Iwai | 208 | 6.04% | 20 | 62.50% |
| Denis Kirjanov | 18 | 0.52% | 1 | 3.12% |
| Benoit Taine | 6 | 0.17% | 1 | 3.12% |
| Yang Hongyang | 4 | 0.12% | 1 | 3.12% |
| Tobias Klauser | 3 | 0.09% | 1 | 3.12% |
| Thomas Gleixner | 3 | 0.09% | 2 | 6.25% |
| Quentin Lambert | 3 | 0.09% | 1 | 3.12% |
| Julia Lawall | 2 | 0.06% | 1 | 3.12% |
| Bhumika Goyal | 2 | 0.06% | 1 | 3.12% |
| Paul Gortmaker | 1 | 0.03% | 1 | 3.12% |
| Total | 3442 | 32 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * als300.c - driver for Avance Logic ALS300/ALS300+ soundcards. * Copyright (C) 2005 by Ash Willis <ashwillis@programmer.net> * * TODO * 4 channel playback for ALS300+ * gameport * mpu401 * opl3 * * NOTES * The BLOCK_COUNTER registers for the ALS300(+) return a figure related to * the position in the current period, NOT the whole buffer. It is important * to know which period we are in so we can calculate the correct pointer. * This is why we always use 2 periods. We can then use a flip-flop variable * to keep track of what period we are in. */ #include <linux/delay.h> #include <linux/init.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/dma-mapping.h> #include <linux/interrupt.h> #include <linux/slab.h> #include <linux/io.h> #include <sound/core.h> #include <sound/control.h> #include <sound/initval.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/ac97_codec.h> #include <sound/opl3.h> /* snd_als300_set_irq_flag */ #define IRQ_DISABLE 0 #define IRQ_ENABLE 1 /* I/O port layout */ #define AC97_ACCESS 0x00 #define AC97_READ 0x04 #define AC97_STATUS 0x06 #define AC97_DATA_AVAIL (1<<6) #define AC97_BUSY (1<<7) #define ALS300_IRQ_STATUS 0x07 /* ALS300 Only */ #define IRQ_PLAYBACK (1<<3) #define IRQ_CAPTURE (1<<2) #define GCR_DATA 0x08 #define GCR_INDEX 0x0C #define ALS300P_DRAM_IRQ_STATUS 0x0D /* ALS300+ Only */ #define MPU_IRQ_STATUS 0x0E /* ALS300 Rev. E+, ALS300+ */ #define ALS300P_IRQ_STATUS 0x0F /* ALS300+ Only */ /* General Control Registers */ #define PLAYBACK_START 0x80 #define PLAYBACK_END 0x81 #define PLAYBACK_CONTROL 0x82 #define TRANSFER_START (1<<16) #define FIFO_PAUSE (1<<17) #define RECORD_START 0x83 #define RECORD_END 0x84 #define RECORD_CONTROL 0x85 #define DRAM_WRITE_CONTROL 0x8B #define WRITE_TRANS_START (1<<16) #define DRAM_MODE_2 (1<<17) #define MISC_CONTROL 0x8C #define IRQ_SET_BIT (1<<15) #define VMUTE_NORMAL (1<<20) #define MMUTE_NORMAL (1<<21) #define MUS_VOC_VOL 0x8E #define PLAYBACK_BLOCK_COUNTER 0x9A #define RECORD_BLOCK_COUNTER 0x9B #define DEBUG_PLAY_REC 0 #if DEBUG_PLAY_REC #define snd_als300_dbgplay(format, args...) printk(KERN_ERR format, ##args) #else #define snd_als300_dbgplay(format, args...) #endif enum {DEVICE_ALS300, DEVICE_ALS300_PLUS}; MODULE_AUTHOR("Ash Willis <ashwillis@programmer.net>"); MODULE_DESCRIPTION("Avance Logic ALS300"); 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 ALS300 sound card."); module_param_array(id, charp, NULL, 0444); MODULE_PARM_DESC(id, "ID string for ALS300 sound card."); module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "Enable ALS300 sound card."); struct snd_als300 { unsigned long port; spinlock_t reg_lock; struct snd_card *card; struct pci_dev *pci; struct snd_pcm *pcm; struct snd_pcm_substream *playback_substream; struct snd_pcm_substream *capture_substream; struct snd_ac97 *ac97; struct snd_opl3 *opl3; struct resource *res_port; int irq; int chip_type; /* ALS300 or ALS300+ */ char revision; }; struct snd_als300_substream_data { int period_flipflop; int control_register; int block_counter_register; }; static const struct pci_device_id snd_als300_ids[] = { { 0x4005, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300 }, { 0x4005, 0x0308, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300_PLUS }, { 0, } }; MODULE_DEVICE_TABLE(pci, snd_als300_ids); static inline u32 snd_als300_gcr_read(unsigned long port, unsigned short reg) { outb(reg, port+GCR_INDEX); return inl(port+GCR_DATA); } static inline void snd_als300_gcr_write(unsigned long port, unsigned short reg, u32 val) { outb(reg, port+GCR_INDEX); outl(val, port+GCR_DATA); } /* 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); /* 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); } static void snd_als300_free(struct snd_card *card) { struct snd_als300 *chip = card->private_data; snd_als300_set_irq_flag(chip, IRQ_DISABLE); } static irqreturn_t snd_als300_interrupt(int irq, void *dev_id) { u8 status; struct snd_als300 *chip = dev_id; struct snd_als300_substream_data *data; status = inb(chip->port+ALS300_IRQ_STATUS); if (!status) /* shared IRQ, for different device?? Exit ASAP! */ return IRQ_NONE; /* ACK everything ASAP */ outb(status, chip->port+ALS300_IRQ_STATUS); if (status & IRQ_PLAYBACK) { if (chip->pcm && chip->playback_substream) { data = chip->playback_substream->runtime->private_data; data->period_flipflop ^= 1; snd_pcm_period_elapsed(chip->playback_substream); snd_als300_dbgplay("IRQ_PLAYBACK\n"); } } if (status & IRQ_CAPTURE) { if (chip->pcm && chip->capture_substream) { data = chip->capture_substream->runtime->private_data; data->period_flipflop ^= 1; snd_pcm_period_elapsed(chip->capture_substream); snd_als300_dbgplay("IRQ_CAPTURE\n"); } } return IRQ_HANDLED; } static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id) { u8 general, mpu, dram; struct snd_als300 *chip = dev_id; struct snd_als300_substream_data *data; general = inb(chip->port+ALS300P_IRQ_STATUS); mpu = inb(chip->port+MPU_IRQ_STATUS); dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS); /* shared IRQ, for different device?? Exit ASAP! */ if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0)) return IRQ_NONE; if (general & IRQ_PLAYBACK) { if (chip->pcm && chip->playback_substream) { outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS); data = chip->playback_substream->runtime->private_data; data->period_flipflop ^= 1; snd_pcm_period_elapsed(chip->playback_substream); snd_als300_dbgplay("IRQ_PLAYBACK\n"); } } if (general & IRQ_CAPTURE) { if (chip->pcm && chip->capture_substream) { outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS); data = chip->capture_substream->runtime->private_data; data->period_flipflop ^= 1; snd_pcm_period_elapsed(chip->capture_substream); snd_als300_dbgplay("IRQ_CAPTURE\n"); } } /* FIXME: Ack other interrupt types. Not important right now as * those other devices aren't enabled. */ return IRQ_HANDLED; } static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97, unsigned short reg) { int i; struct snd_als300 *chip = ac97->private_data; for (i = 0; i < 1000; i++) { if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) break; udelay(10); } outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS); for (i = 0; i < 1000; i++) { if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0) break; udelay(10); } return inw(chip->port+AC97_READ); } static void snd_als300_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val) { int i; struct snd_als300 *chip = ac97->private_data; for (i = 0; i < 1000; i++) { if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) break; udelay(10); } outl((reg << 24) | val, chip->port+AC97_ACCESS); } static int snd_als300_ac97(struct snd_als300 *chip) { struct snd_ac97_bus *bus; struct snd_ac97_template ac97; int err; static const struct snd_ac97_bus_ops ops = { .write = snd_als300_ac97_write, .read = snd_als300_ac97_read, }; err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus); if (err < 0) return err; memset(&ac97, 0, sizeof(ac97)); ac97.private_data = chip; return snd_ac97_mixer(bus, &ac97, &chip->ac97); } /* hardware definition * * In AC97 mode, we always use 48k/16bit/stereo. * Any request to change data type is ignored by * the card when it is running outside of legacy * mode. */ static const struct snd_pcm_hardware snd_als300_playback_hw = { .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID), .formats = SNDRV_PCM_FMTBIT_S16, .rates = SNDRV_PCM_RATE_48000, .rate_min = 48000, .rate_max = 48000, .channels_min = 2, .channels_max = 2, .buffer_bytes_max = 64 * 1024, .period_bytes_min = 64, .period_bytes_max = 32 * 1024, .periods_min = 2, .periods_max = 2, }; static const struct snd_pcm_hardware snd_als300_capture_hw = { .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID), .formats = SNDRV_PCM_FMTBIT_S16, .rates = SNDRV_PCM_RATE_48000, .rate_min = 48000, .rate_max = 48000, .channels_min = 2, .channels_max = 2, .buffer_bytes_max = 64 * 1024, .period_bytes_min = 64, .period_bytes_max = 32 * 1024, .periods_min = 2, .periods_max = 2, }; static int snd_als300_playback_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); if (!data) return -ENOMEM; chip->playback_substream = substream; runtime->hw = snd_als300_playback_hw; runtime->private_data = data; data->control_register = PLAYBACK_CONTROL; data->block_counter_register = PLAYBACK_BLOCK_COUNTER; return 0; } static int snd_als300_playback_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; kfree(data); chip->playback_substream = NULL; 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); if (!data) return -ENOMEM; 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; 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; kfree(data); chip->capture_substream = NULL; return 0; } static int snd_als300_playback_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); spin_lock_irq(&chip->reg_lock); tmp = snd_als300_gcr_read(chip->port, PLAYBACK_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; snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp); /* set dma area */ snd_als300_gcr_write(chip->port, PLAYBACK_START, runtime->dma_addr); snd_als300_gcr_write(chip->port, PLAYBACK_END, runtime->dma_addr + buffer_bytes - 1); spin_unlock_irq(&chip->reg_lock); return 0; } 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); 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); return 0; } 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; 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); return ret; } 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); 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); return bytes_to_frames(substream->runtime, current_ptr); } static const struct snd_pcm_ops snd_als300_playback_ops = { .open = snd_als300_playback_open, .close = snd_als300_playback_close, .prepare = snd_als300_playback_prepare, .trigger = snd_als300_trigger, .pointer = snd_als300_pointer, }; static const struct snd_pcm_ops snd_als300_capture_ops = { .open = snd_als300_capture_open, .close = snd_als300_capture_close, .prepare = snd_als300_capture_prepare, .trigger = snd_als300_trigger, .pointer = snd_als300_pointer, }; static int snd_als300_new_pcm(struct snd_als300 *chip) { struct snd_pcm *pcm; int err; 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_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev, 64*1024, 64*1024); return 0; } static void snd_als300_init(struct snd_als300 *chip) { unsigned long flags; u32 tmp; 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); } static int snd_als300_create(struct snd_card *card, struct pci_dev *pci, int chip_type) { struct snd_als300 *chip = card->private_data; void *irq_handler; int err; err = pcim_enable_device(pci); if (err < 0) return err; if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28))) { dev_err(card->dev, "error setting 28bit DMA mask\n"); return -ENXIO; } pci_set_master(pci); chip->card = card; chip->pci = pci; chip->irq = -1; chip->chip_type = chip_type; spin_lock_init(&chip->reg_lock); err = pci_request_regions(pci, "ALS300"); if (err < 0) 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 (devm_request_irq(&pci->dev, pci->irq, irq_handler, IRQF_SHARED, KBUILD_MODNAME, chip)) { dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); return -EBUSY; } chip->irq = pci->irq; card->sync_irq = chip->irq; card->private_free = snd_als300_free; snd_als300_init(chip); err = snd_als300_ac97(chip); if (err < 0) { dev_err(card->dev, "Could not create ac97\n"); return err; } err = snd_als300_new_pcm(chip); if (err < 0) { dev_err(card->dev, "Could not create PCM\n"); return err; } return 0; } static int snd_als300_suspend(struct device *dev) { struct snd_card *card = dev_get_drvdata(dev); struct snd_als300 *chip = card->private_data; snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); snd_ac97_suspend(chip->ac97); return 0; } static int snd_als300_resume(struct device *dev) { struct snd_card *card = dev_get_drvdata(dev); struct snd_als300 *chip = card->private_data; snd_als300_init(chip); snd_ac97_resume(chip->ac97); snd_power_change_state(card, SNDRV_CTL_POWER_D0); return 0; } static DEFINE_SIMPLE_DEV_PM_OPS(snd_als300_pm, snd_als300_suspend, snd_als300_resume); static int snd_als300_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { static int dev; struct snd_card *card; struct snd_als300 *chip; int err, chip_type; if (dev >= SNDRV_CARDS) return -ENODEV; if (!enable[dev]) { dev++; return -ENOENT; } err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, sizeof(*chip), &card); if (err < 0) return err; chip = card->private_data; chip_type = pci_id->driver_data; err = snd_als300_create(card, pci, chip_type); if (err < 0) goto error; strcpy(card->driver, "ALS300"); if (chip->chip_type == DEVICE_ALS300_PLUS) /* don't know much about ALS300+ yet * print revision number for now */ sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision); else sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' + chip->revision - 1); sprintf(card->longname, "%s at 0x%lx irq %i", card->shortname, chip->port, chip->irq); err = snd_card_register(card); if (err < 0) goto error; pci_set_drvdata(pci, card); dev++; return 0; error: snd_card_free(card); return err; } static struct pci_driver als300_driver = { .name = KBUILD_MODNAME, .id_table = snd_als300_ids, .probe = snd_als300_probe, .driver = { .pm = &snd_als300_pm, }, }; module_pci_driver(als300_driver);
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