| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Clemens Ladisch | 3768 | 92.04% | 1 | 2.86% |
| Takashi Iwai | 283 | 6.91% | 18 | 51.43% |
| Joe Perches | 9 | 0.22% | 2 | 5.71% |
| Benoit Taine | 6 | 0.15% | 1 | 2.86% |
| Jia-Ju Bai | 4 | 0.10% | 1 | 2.86% |
| Yang Hongyang | 4 | 0.10% | 1 | 2.86% |
| Paul Gortmaker | 3 | 0.07% | 1 | 2.86% |
| Thomas Gleixner | 3 | 0.07% | 2 | 5.71% |
| Quentin Lambert | 3 | 0.07% | 1 | 2.86% |
| Tobias Klauser | 3 | 0.07% | 1 | 2.86% |
| Julia Lawall | 2 | 0.05% | 1 | 2.86% |
| Bhumika Goyal | 2 | 0.05% | 1 | 2.86% |
| Randy Dunlap | 1 | 0.02% | 1 | 2.86% |
| Rusty Russell | 1 | 0.02% | 1 | 2.86% |
| Jaroslav Kysela | 1 | 0.02% | 1 | 2.86% |
| Harvey Harrison | 1 | 0.02% | 1 | 2.86% |
| Total | 4094 | 35 |
// SPDX-License-Identifier: GPL-2.0-only /* Analog Devices 1889 audio driver * * This is a driver for the AD1889 PCI audio chipset found * on the HP PA-RISC [BCJ]-xxx0 workstations. * * Copyright (C) 2004-2005, Kyle McMartin <kyle@parisc-linux.org> * Copyright (C) 2005, Thibaut Varene <varenet@parisc-linux.org> * Based on the OSS AD1889 driver by Randolph Chung <tausq@debian.org> * * TODO: * Do we need to take care of CCS register? * Maybe we could use finer grained locking (separate locks for pb/cap)? * Wishlist: * Control Interface (mixer) support * Better AC97 support (VSR...)? * PM support * MIDI support * Game Port support * SG DMA support (this will need *a lot* of work) */ #include <linux/init.h> #include <linux/pci.h> #include <linux/dma-mapping.h> #include <linux/slab.h> #include <linux/interrupt.h> #include <linux/compiler.h> #include <linux/delay.h> #include <linux/module.h> #include <linux/io.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/initval.h> #include <sound/ac97_codec.h> #include "ad1889.h" #include "ac97/ac97_id.h" #define AD1889_DRVVER "Version: 1.7" MODULE_AUTHOR("Kyle McMartin <kyle@parisc-linux.org>, Thibaut Varene <t-bone@parisc-linux.org>"); MODULE_DESCRIPTION("Analog Devices AD1889 ALSA sound driver"); MODULE_LICENSE("GPL"); static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; module_param_array(index, int, NULL, 0444); MODULE_PARM_DESC(index, "Index value for the AD1889 soundcard."); static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; module_param_array(id, charp, NULL, 0444); MODULE_PARM_DESC(id, "ID string for the AD1889 soundcard."); static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "Enable AD1889 soundcard."); static char *ac97_quirk[SNDRV_CARDS]; module_param_array(ac97_quirk, charp, NULL, 0444); MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware."); #define DEVNAME "ad1889" #define PFX DEVNAME ": " /* keep track of some hw registers */ struct ad1889_register_state { u16 reg; /* reg setup */ u32 addr; /* dma base address */ unsigned long size; /* DMA buffer size */ }; struct snd_ad1889 { struct snd_card *card; struct pci_dev *pci; int irq; unsigned long bar; void __iomem *iobase; struct snd_ac97 *ac97; struct snd_ac97_bus *ac97_bus; struct snd_pcm *pcm; struct snd_info_entry *proc; struct snd_pcm_substream *psubs; struct snd_pcm_substream *csubs; /* playback register state */ struct ad1889_register_state wave; struct ad1889_register_state ramc; spinlock_t lock; }; static inline u16 ad1889_readw(struct snd_ad1889 *chip, unsigned reg) { return readw(chip->iobase + reg); } static inline void ad1889_writew(struct snd_ad1889 *chip, unsigned reg, u16 val) { writew(val, chip->iobase + reg); } static inline u32 ad1889_readl(struct snd_ad1889 *chip, unsigned reg) { return readl(chip->iobase + reg); } static inline void ad1889_writel(struct snd_ad1889 *chip, unsigned reg, u32 val) { writel(val, chip->iobase + reg); } static inline void ad1889_unmute(struct snd_ad1889 *chip) { u16 st; st = ad1889_readw(chip, AD_DS_WADA) & ~(AD_DS_WADA_RWAM | AD_DS_WADA_LWAM); ad1889_writew(chip, AD_DS_WADA, st); ad1889_readw(chip, AD_DS_WADA); } static inline void ad1889_mute(struct snd_ad1889 *chip) { u16 st; st = ad1889_readw(chip, AD_DS_WADA) | AD_DS_WADA_RWAM | AD_DS_WADA_LWAM; ad1889_writew(chip, AD_DS_WADA, st); ad1889_readw(chip, AD_DS_WADA); } static inline void ad1889_load_adc_buffer_address(struct snd_ad1889 *chip, u32 address) { ad1889_writel(chip, AD_DMA_ADCBA, address); ad1889_writel(chip, AD_DMA_ADCCA, address); } static inline void ad1889_load_adc_buffer_count(struct snd_ad1889 *chip, u32 count) { ad1889_writel(chip, AD_DMA_ADCBC, count); ad1889_writel(chip, AD_DMA_ADCCC, count); } static inline void ad1889_load_adc_interrupt_count(struct snd_ad1889 *chip, u32 count) { ad1889_writel(chip, AD_DMA_ADCIB, count); ad1889_writel(chip, AD_DMA_ADCIC, count); } static inline void ad1889_load_wave_buffer_address(struct snd_ad1889 *chip, u32 address) { ad1889_writel(chip, AD_DMA_WAVBA, address); ad1889_writel(chip, AD_DMA_WAVCA, address); } static inline void ad1889_load_wave_buffer_count(struct snd_ad1889 *chip, u32 count) { ad1889_writel(chip, AD_DMA_WAVBC, count); ad1889_writel(chip, AD_DMA_WAVCC, count); } static inline void ad1889_load_wave_interrupt_count(struct snd_ad1889 *chip, u32 count) { ad1889_writel(chip, AD_DMA_WAVIB, count); ad1889_writel(chip, AD_DMA_WAVIC, count); } static void ad1889_channel_reset(struct snd_ad1889 *chip, unsigned int channel) { u16 reg; if (channel & AD_CHAN_WAV) { /* Disable wave channel */ reg = ad1889_readw(chip, AD_DS_WSMC) & ~AD_DS_WSMC_WAEN; ad1889_writew(chip, AD_DS_WSMC, reg); chip->wave.reg = reg; /* disable IRQs */ reg = ad1889_readw(chip, AD_DMA_WAV); reg &= AD_DMA_IM_DIS; reg &= ~AD_DMA_LOOP; ad1889_writew(chip, AD_DMA_WAV, reg); /* clear IRQ and address counters and pointers */ ad1889_load_wave_buffer_address(chip, 0x0); ad1889_load_wave_buffer_count(chip, 0x0); ad1889_load_wave_interrupt_count(chip, 0x0); /* flush */ ad1889_readw(chip, AD_DMA_WAV); } if (channel & AD_CHAN_ADC) { /* Disable ADC channel */ reg = ad1889_readw(chip, AD_DS_RAMC) & ~AD_DS_RAMC_ADEN; ad1889_writew(chip, AD_DS_RAMC, reg); chip->ramc.reg = reg; reg = ad1889_readw(chip, AD_DMA_ADC); reg &= AD_DMA_IM_DIS; reg &= ~AD_DMA_LOOP; ad1889_writew(chip, AD_DMA_ADC, reg); ad1889_load_adc_buffer_address(chip, 0x0); ad1889_load_adc_buffer_count(chip, 0x0); ad1889_load_adc_interrupt_count(chip, 0x0); /* flush */ ad1889_readw(chip, AD_DMA_ADC); } } static u16 snd_ad1889_ac97_read(struct snd_ac97 *ac97, unsigned short reg) { struct snd_ad1889 *chip = ac97->private_data; return ad1889_readw(chip, AD_AC97_BASE + reg); } static void snd_ad1889_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val) { struct snd_ad1889 *chip = ac97->private_data; ad1889_writew(chip, AD_AC97_BASE + reg, val); } static int snd_ad1889_ac97_ready(struct snd_ad1889 *chip) { int retry = 400; /* average needs 352 msec */ while (!(ad1889_readw(chip, AD_AC97_ACIC) & AD_AC97_ACIC_ACRDY) && --retry) usleep_range(1000, 2000); if (!retry) { dev_err(chip->card->dev, "[%s] Link is not ready.\n", __func__); return -EIO; } dev_dbg(chip->card->dev, "[%s] ready after %d ms\n", __func__, 400 - retry); return 0; } static const struct snd_pcm_hardware snd_ad1889_playback_hw = { .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BLOCK_TRANSFER, .formats = SNDRV_PCM_FMTBIT_S16_LE, .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, .rate_min = 8000, /* docs say 7000, but we're lazy */ .rate_max = 48000, .channels_min = 1, .channels_max = 2, .buffer_bytes_max = BUFFER_BYTES_MAX, .period_bytes_min = PERIOD_BYTES_MIN, .period_bytes_max = PERIOD_BYTES_MAX, .periods_min = PERIODS_MIN, .periods_max = PERIODS_MAX, /*.fifo_size = 0,*/ }; static const struct snd_pcm_hardware snd_ad1889_capture_hw = { .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BLOCK_TRANSFER, .formats = SNDRV_PCM_FMTBIT_S16_LE, .rates = SNDRV_PCM_RATE_48000, .rate_min = 48000, /* docs say we could to VSR, but we're lazy */ .rate_max = 48000, .channels_min = 1, .channels_max = 2, .buffer_bytes_max = BUFFER_BYTES_MAX, .period_bytes_min = PERIOD_BYTES_MIN, .period_bytes_max = PERIOD_BYTES_MAX, .periods_min = PERIODS_MIN, .periods_max = PERIODS_MAX, /*.fifo_size = 0,*/ }; static int snd_ad1889_playback_open(struct snd_pcm_substream *ss) { struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); struct snd_pcm_runtime *rt = ss->runtime; chip->psubs = ss; rt->hw = snd_ad1889_playback_hw; return 0; } static int snd_ad1889_capture_open(struct snd_pcm_substream *ss) { struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); struct snd_pcm_runtime *rt = ss->runtime; chip->csubs = ss; rt->hw = snd_ad1889_capture_hw; return 0; } static int snd_ad1889_playback_close(struct snd_pcm_substream *ss) { struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); chip->psubs = NULL; return 0; } static int snd_ad1889_capture_close(struct snd_pcm_substream *ss) { struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); chip->csubs = NULL; return 0; } static int snd_ad1889_playback_prepare(struct snd_pcm_substream *ss) { struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); struct snd_pcm_runtime *rt = ss->runtime; unsigned int size = snd_pcm_lib_buffer_bytes(ss); unsigned int count = snd_pcm_lib_period_bytes(ss); u16 reg; ad1889_channel_reset(chip, AD_CHAN_WAV); reg = ad1889_readw(chip, AD_DS_WSMC); /* Mask out 16-bit / Stereo */ reg &= ~(AD_DS_WSMC_WA16 | AD_DS_WSMC_WAST); if (snd_pcm_format_width(rt->format) == 16) reg |= AD_DS_WSMC_WA16; if (rt->channels > 1) reg |= AD_DS_WSMC_WAST; /* let's make sure we don't clobber ourselves */ spin_lock_irq(&chip->lock); chip->wave.size = size; chip->wave.reg = reg; chip->wave.addr = rt->dma_addr; ad1889_writew(chip, AD_DS_WSMC, chip->wave.reg); /* Set sample rates on the codec */ ad1889_writew(chip, AD_DS_WAS, rt->rate); /* Set up DMA */ ad1889_load_wave_buffer_address(chip, chip->wave.addr); ad1889_load_wave_buffer_count(chip, size); ad1889_load_wave_interrupt_count(chip, count); /* writes flush */ ad1889_readw(chip, AD_DS_WSMC); spin_unlock_irq(&chip->lock); dev_dbg(chip->card->dev, "prepare playback: addr = 0x%x, count = %u, size = %u, reg = 0x%x, rate = %u\n", chip->wave.addr, count, size, reg, rt->rate); return 0; } static int snd_ad1889_capture_prepare(struct snd_pcm_substream *ss) { struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); struct snd_pcm_runtime *rt = ss->runtime; unsigned int size = snd_pcm_lib_buffer_bytes(ss); unsigned int count = snd_pcm_lib_period_bytes(ss); u16 reg; ad1889_channel_reset(chip, AD_CHAN_ADC); reg = ad1889_readw(chip, AD_DS_RAMC); /* Mask out 16-bit / Stereo */ reg &= ~(AD_DS_RAMC_AD16 | AD_DS_RAMC_ADST); if (snd_pcm_format_width(rt->format) == 16) reg |= AD_DS_RAMC_AD16; if (rt->channels > 1) reg |= AD_DS_RAMC_ADST; /* let's make sure we don't clobber ourselves */ spin_lock_irq(&chip->lock); chip->ramc.size = size; chip->ramc.reg = reg; chip->ramc.addr = rt->dma_addr; ad1889_writew(chip, AD_DS_RAMC, chip->ramc.reg); /* Set up DMA */ ad1889_load_adc_buffer_address(chip, chip->ramc.addr); ad1889_load_adc_buffer_count(chip, size); ad1889_load_adc_interrupt_count(chip, count); /* writes flush */ ad1889_readw(chip, AD_DS_RAMC); spin_unlock_irq(&chip->lock); dev_dbg(chip->card->dev, "prepare capture: addr = 0x%x, count = %u, size = %u, reg = 0x%x, rate = %u\n", chip->ramc.addr, count, size, reg, rt->rate); return 0; } /* this is called in atomic context with IRQ disabled. Must be as fast as possible and not sleep. DMA should be *triggered* by this call. The WSMC "WAEN" bit triggers DMA Wave On/Off */ static int snd_ad1889_playback_trigger(struct snd_pcm_substream *ss, int cmd) { u16 wsmc; struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); wsmc = ad1889_readw(chip, AD_DS_WSMC); switch (cmd) { case SNDRV_PCM_TRIGGER_START: /* enable DMA loop & interrupts */ ad1889_writew(chip, AD_DMA_WAV, AD_DMA_LOOP | AD_DMA_IM_CNT); wsmc |= AD_DS_WSMC_WAEN; /* 1 to clear CHSS bit */ ad1889_writel(chip, AD_DMA_CHSS, AD_DMA_CHSS_WAVS); ad1889_unmute(chip); break; case SNDRV_PCM_TRIGGER_STOP: ad1889_mute(chip); wsmc &= ~AD_DS_WSMC_WAEN; break; default: snd_BUG(); return -EINVAL; } chip->wave.reg = wsmc; ad1889_writew(chip, AD_DS_WSMC, wsmc); ad1889_readw(chip, AD_DS_WSMC); /* flush */ /* reset the chip when STOP - will disable IRQs */ if (cmd == SNDRV_PCM_TRIGGER_STOP) ad1889_channel_reset(chip, AD_CHAN_WAV); return 0; } /* this is called in atomic context with IRQ disabled. Must be as fast as possible and not sleep. DMA should be *triggered* by this call. The RAMC "ADEN" bit triggers DMA ADC On/Off */ static int snd_ad1889_capture_trigger(struct snd_pcm_substream *ss, int cmd) { u16 ramc; struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); ramc = ad1889_readw(chip, AD_DS_RAMC); switch (cmd) { case SNDRV_PCM_TRIGGER_START: /* enable DMA loop & interrupts */ ad1889_writew(chip, AD_DMA_ADC, AD_DMA_LOOP | AD_DMA_IM_CNT); ramc |= AD_DS_RAMC_ADEN; /* 1 to clear CHSS bit */ ad1889_writel(chip, AD_DMA_CHSS, AD_DMA_CHSS_ADCS); break; case SNDRV_PCM_TRIGGER_STOP: ramc &= ~AD_DS_RAMC_ADEN; break; default: return -EINVAL; } chip->ramc.reg = ramc; ad1889_writew(chip, AD_DS_RAMC, ramc); ad1889_readw(chip, AD_DS_RAMC); /* flush */ /* reset the chip when STOP - will disable IRQs */ if (cmd == SNDRV_PCM_TRIGGER_STOP) ad1889_channel_reset(chip, AD_CHAN_ADC); return 0; } /* Called in atomic context with IRQ disabled */ static snd_pcm_uframes_t snd_ad1889_playback_pointer(struct snd_pcm_substream *ss) { size_t ptr = 0; struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); if (unlikely(!(chip->wave.reg & AD_DS_WSMC_WAEN))) return 0; ptr = ad1889_readl(chip, AD_DMA_WAVCA); ptr -= chip->wave.addr; if (snd_BUG_ON(ptr >= chip->wave.size)) return 0; return bytes_to_frames(ss->runtime, ptr); } /* Called in atomic context with IRQ disabled */ static snd_pcm_uframes_t snd_ad1889_capture_pointer(struct snd_pcm_substream *ss) { size_t ptr = 0; struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); if (unlikely(!(chip->ramc.reg & AD_DS_RAMC_ADEN))) return 0; ptr = ad1889_readl(chip, AD_DMA_ADCCA); ptr -= chip->ramc.addr; if (snd_BUG_ON(ptr >= chip->ramc.size)) return 0; return bytes_to_frames(ss->runtime, ptr); } static const struct snd_pcm_ops snd_ad1889_playback_ops = { .open = snd_ad1889_playback_open, .close = snd_ad1889_playback_close, .prepare = snd_ad1889_playback_prepare, .trigger = snd_ad1889_playback_trigger, .pointer = snd_ad1889_playback_pointer, }; static const struct snd_pcm_ops snd_ad1889_capture_ops = { .open = snd_ad1889_capture_open, .close = snd_ad1889_capture_close, .prepare = snd_ad1889_capture_prepare, .trigger = snd_ad1889_capture_trigger, .pointer = snd_ad1889_capture_pointer, }; static irqreturn_t snd_ad1889_interrupt(int irq, void *dev_id) { unsigned long st; struct snd_ad1889 *chip = dev_id; st = ad1889_readl(chip, AD_DMA_DISR); /* clear ISR */ ad1889_writel(chip, AD_DMA_DISR, st); st &= AD_INTR_MASK; if (unlikely(!st)) return IRQ_NONE; if (st & (AD_DMA_DISR_PMAI|AD_DMA_DISR_PTAI)) dev_dbg(chip->card->dev, "Unexpected master or target abort interrupt!\n"); if ((st & AD_DMA_DISR_WAVI) && chip->psubs) snd_pcm_period_elapsed(chip->psubs); if ((st & AD_DMA_DISR_ADCI) && chip->csubs) snd_pcm_period_elapsed(chip->csubs); return IRQ_HANDLED; } static int snd_ad1889_pcm_init(struct snd_ad1889 *chip, int device) { int err; struct snd_pcm *pcm; err = snd_pcm_new(chip->card, chip->card->driver, device, 1, 1, &pcm); if (err < 0) return err; snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1889_playback_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1889_capture_ops); pcm->private_data = chip; pcm->info_flags = 0; strcpy(pcm->name, chip->card->shortname); chip->pcm = pcm; chip->psubs = NULL; chip->csubs = NULL; snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev, BUFFER_BYTES_MAX / 2, BUFFER_BYTES_MAX); return 0; } static void snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { struct snd_ad1889 *chip = entry->private_data; u16 reg; int tmp; reg = ad1889_readw(chip, AD_DS_WSMC); snd_iprintf(buffer, "Wave output: %s\n", (reg & AD_DS_WSMC_WAEN) ? "enabled" : "disabled"); snd_iprintf(buffer, "Wave Channels: %s\n", (reg & AD_DS_WSMC_WAST) ? "stereo" : "mono"); snd_iprintf(buffer, "Wave Quality: %d-bit linear\n", (reg & AD_DS_WSMC_WA16) ? 16 : 8); /* WARQ is at offset 12 */ tmp = (reg & AD_DS_WSMC_WARQ) ? ((((reg & AD_DS_WSMC_WARQ) >> 12) & 0x01) ? 12 : 18) : 4; tmp /= (reg & AD_DS_WSMC_WAST) ? 2 : 1; snd_iprintf(buffer, "Wave FIFO: %d %s words\n\n", tmp, (reg & AD_DS_WSMC_WAST) ? "stereo" : "mono"); snd_iprintf(buffer, "Synthesis output: %s\n", reg & AD_DS_WSMC_SYEN ? "enabled" : "disabled"); /* SYRQ is at offset 4 */ tmp = (reg & AD_DS_WSMC_SYRQ) ? ((((reg & AD_DS_WSMC_SYRQ) >> 4) & 0x01) ? 12 : 18) : 4; tmp /= (reg & AD_DS_WSMC_WAST) ? 2 : 1; snd_iprintf(buffer, "Synthesis FIFO: %d %s words\n\n", tmp, (reg & AD_DS_WSMC_WAST) ? "stereo" : "mono"); reg = ad1889_readw(chip, AD_DS_RAMC); snd_iprintf(buffer, "ADC input: %s\n", (reg & AD_DS_RAMC_ADEN) ? "enabled" : "disabled"); snd_iprintf(buffer, "ADC Channels: %s\n", (reg & AD_DS_RAMC_ADST) ? "stereo" : "mono"); snd_iprintf(buffer, "ADC Quality: %d-bit linear\n", (reg & AD_DS_RAMC_AD16) ? 16 : 8); /* ACRQ is at offset 4 */ tmp = (reg & AD_DS_RAMC_ACRQ) ? ((((reg & AD_DS_RAMC_ACRQ) >> 4) & 0x01) ? 12 : 18) : 4; tmp /= (reg & AD_DS_RAMC_ADST) ? 2 : 1; snd_iprintf(buffer, "ADC FIFO: %d %s words\n\n", tmp, (reg & AD_DS_RAMC_ADST) ? "stereo" : "mono"); snd_iprintf(buffer, "Resampler input: %s\n", reg & AD_DS_RAMC_REEN ? "enabled" : "disabled"); /* RERQ is at offset 12 */ tmp = (reg & AD_DS_RAMC_RERQ) ? ((((reg & AD_DS_RAMC_RERQ) >> 12) & 0x01) ? 12 : 18) : 4; tmp /= (reg & AD_DS_RAMC_ADST) ? 2 : 1; snd_iprintf(buffer, "Resampler FIFO: %d %s words\n\n", tmp, (reg & AD_DS_WSMC_WAST) ? "stereo" : "mono"); /* doc says LSB represents -1.5dB, but the max value (-94.5dB) suggests that LSB is -3dB, which is more coherent with the logarithmic nature of the dB scale */ reg = ad1889_readw(chip, AD_DS_WADA); snd_iprintf(buffer, "Left: %s, -%d dB\n", (reg & AD_DS_WADA_LWAM) ? "mute" : "unmute", ((reg & AD_DS_WADA_LWAA) >> 8) * 3); reg = ad1889_readw(chip, AD_DS_WADA); snd_iprintf(buffer, "Right: %s, -%d dB\n", (reg & AD_DS_WADA_RWAM) ? "mute" : "unmute", (reg & AD_DS_WADA_RWAA) * 3); reg = ad1889_readw(chip, AD_DS_WAS); snd_iprintf(buffer, "Wave samplerate: %u Hz\n", reg); reg = ad1889_readw(chip, AD_DS_RES); snd_iprintf(buffer, "Resampler samplerate: %u Hz\n", reg); } static void snd_ad1889_proc_init(struct snd_ad1889 *chip) { snd_card_ro_proc_new(chip->card, chip->card->driver, chip, snd_ad1889_proc_read); } static const struct ac97_quirk ac97_quirks[] = { { .subvendor = 0x11d4, /* AD */ .subdevice = 0x1889, /* AD1889 */ .codec_id = AC97_ID_AD1819, .name = "AD1889", .type = AC97_TUNE_HP_ONLY }, { } /* terminator */ }; static void snd_ad1889_ac97_xinit(struct snd_ad1889 *chip) { u16 reg; reg = ad1889_readw(chip, AD_AC97_ACIC); reg |= AD_AC97_ACIC_ACRD; /* Reset Disable */ ad1889_writew(chip, AD_AC97_ACIC, reg); ad1889_readw(chip, AD_AC97_ACIC); /* flush posted write */ udelay(10); /* Interface Enable */ reg |= AD_AC97_ACIC_ACIE; ad1889_writew(chip, AD_AC97_ACIC, reg); snd_ad1889_ac97_ready(chip); /* Audio Stream Output | Variable Sample Rate Mode */ reg = ad1889_readw(chip, AD_AC97_ACIC); reg |= AD_AC97_ACIC_ASOE | AD_AC97_ACIC_VSRM; ad1889_writew(chip, AD_AC97_ACIC, reg); ad1889_readw(chip, AD_AC97_ACIC); /* flush posted write */ } static int snd_ad1889_ac97_init(struct snd_ad1889 *chip, const char *quirk_override) { int err; struct snd_ac97_template ac97; static const struct snd_ac97_bus_ops ops = { .write = snd_ad1889_ac97_write, .read = snd_ad1889_ac97_read, }; /* doing that here, it works. */ snd_ad1889_ac97_xinit(chip); err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus); if (err < 0) return err; memset(&ac97, 0, sizeof(ac97)); ac97.private_data = chip; ac97.pci = chip->pci; err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97); if (err < 0) return err; snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override); return 0; } static void snd_ad1889_free(struct snd_card *card) { struct snd_ad1889 *chip = card->private_data; spin_lock_irq(&chip->lock); ad1889_mute(chip); /* Turn off interrupt on count and zero DMA registers */ ad1889_channel_reset(chip, AD_CHAN_WAV | AD_CHAN_ADC); /* clear DISR. If we don't, we'd better jump off the Eiffel Tower */ ad1889_writel(chip, AD_DMA_DISR, AD_DMA_DISR_PTAI | AD_DMA_DISR_PMAI); ad1889_readl(chip, AD_DMA_DISR); /* flush, dammit! */ spin_unlock_irq(&chip->lock); } static int snd_ad1889_create(struct snd_card *card, struct pci_dev *pci) { struct snd_ad1889 *chip = card->private_data; int err; err = pcim_enable_device(pci); if (err < 0) return err; /* check PCI availability (32bit DMA) */ if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32))) { dev_err(card->dev, "error setting 32-bit DMA mask.\n"); return -ENXIO; } chip->card = card; chip->pci = pci; chip->irq = -1; /* (1) PCI resource allocation */ err = pcim_iomap_regions(pci, 1 << 0, card->driver); if (err < 0) return err; chip->bar = pci_resource_start(pci, 0); chip->iobase = pcim_iomap_table(pci)[0]; pci_set_master(pci); spin_lock_init(&chip->lock); /* only now can we call ad1889_free */ if (devm_request_irq(&pci->dev, pci->irq, snd_ad1889_interrupt, IRQF_SHARED, KBUILD_MODNAME, chip)) { dev_err(card->dev, "cannot obtain IRQ %d\n", pci->irq); return -EBUSY; } chip->irq = pci->irq; card->sync_irq = chip->irq; card->private_free = snd_ad1889_free; /* (2) initialization of the chip hardware */ ad1889_writew(chip, AD_DS_CCS, AD_DS_CCS_CLKEN); /* turn on clock */ ad1889_readw(chip, AD_DS_CCS); /* flush posted write */ usleep_range(10000, 11000); /* enable Master and Target abort interrupts */ ad1889_writel(chip, AD_DMA_DISR, AD_DMA_DISR_PMAE | AD_DMA_DISR_PTAE); return 0; } static int __snd_ad1889_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { int err; static int devno; struct snd_card *card; struct snd_ad1889 *chip; /* (1) */ if (devno >= SNDRV_CARDS) return -ENODEV; if (!enable[devno]) { devno++; return -ENOENT; } /* (2) */ err = snd_devm_card_new(&pci->dev, index[devno], id[devno], THIS_MODULE, sizeof(*chip), &card); if (err < 0) return err; chip = card->private_data; strcpy(card->driver, "AD1889"); strcpy(card->shortname, "Analog Devices AD1889"); /* (3) */ err = snd_ad1889_create(card, pci); if (err < 0) return err; /* (4) */ sprintf(card->longname, "%s at 0x%lx irq %i", card->shortname, chip->bar, chip->irq); /* (5) */ /* register AC97 mixer */ err = snd_ad1889_ac97_init(chip, ac97_quirk[devno]); if (err < 0) return err; err = snd_ad1889_pcm_init(chip, 0); if (err < 0) return err; /* register proc interface */ snd_ad1889_proc_init(chip); /* (6) */ err = snd_card_register(card); if (err < 0) return err; /* (7) */ pci_set_drvdata(pci, card); devno++; return 0; } static int snd_ad1889_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { return snd_card_free_on_error(&pci->dev, __snd_ad1889_probe(pci, pci_id)); } static const struct pci_device_id snd_ad1889_ids[] = { { PCI_DEVICE(PCI_VENDOR_ID_ANALOG_DEVICES, PCI_DEVICE_ID_AD1889JS) }, { 0, }, }; MODULE_DEVICE_TABLE(pci, snd_ad1889_ids); static struct pci_driver ad1889_pci_driver = { .name = KBUILD_MODNAME, .id_table = snd_ad1889_ids, .probe = snd_ad1889_probe, }; module_pci_driver(ad1889_pci_driver);
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