// 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 <[email protected]> * Copyright (C) 2005, Thibaut Varene <[email protected]> * Based on the OSS AD1889 driver by Randolph Chung <[email protected]> * * 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 … MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; static int index[SNDRV_CARDS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static char *id[SNDRV_CARDS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static bool enable[SNDRV_CARDS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static char *ac97_quirk[SNDRV_CARDS]; module_param_array(…); MODULE_PARM_DESC(…) …; #define DEVNAME … #define PFX … /* keep track of some hw registers */ struct ad1889_register_state { … }; struct snd_ad1889 { … }; static inline u16 ad1889_readw(struct snd_ad1889 *chip, unsigned reg) { … } static inline void ad1889_writew(struct snd_ad1889 *chip, unsigned reg, u16 val) { … } static inline u32 ad1889_readl(struct snd_ad1889 *chip, unsigned reg) { … } static inline void ad1889_writel(struct snd_ad1889 *chip, unsigned reg, u32 val) { … } static inline void ad1889_unmute(struct snd_ad1889 *chip) { … } static inline void ad1889_mute(struct snd_ad1889 *chip) { … } static inline void ad1889_load_adc_buffer_address(struct snd_ad1889 *chip, u32 address) { … } static inline void ad1889_load_adc_buffer_count(struct snd_ad1889 *chip, u32 count) { … } static inline void ad1889_load_adc_interrupt_count(struct snd_ad1889 *chip, u32 count) { … } static inline void ad1889_load_wave_buffer_address(struct snd_ad1889 *chip, u32 address) { … } static inline void ad1889_load_wave_buffer_count(struct snd_ad1889 *chip, u32 count) { … } static inline void ad1889_load_wave_interrupt_count(struct snd_ad1889 *chip, u32 count) { … } static void ad1889_channel_reset(struct snd_ad1889 *chip, unsigned int channel) { … } static u16 snd_ad1889_ac97_read(struct snd_ac97 *ac97, unsigned short reg) { … } static void snd_ad1889_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val) { … } static int snd_ad1889_ac97_ready(struct snd_ad1889 *chip) { … } static const struct snd_pcm_hardware snd_ad1889_playback_hw = …; static const struct snd_pcm_hardware snd_ad1889_capture_hw = …; static int snd_ad1889_playback_open(struct snd_pcm_substream *ss) { … } static int snd_ad1889_capture_open(struct snd_pcm_substream *ss) { … } static int snd_ad1889_playback_close(struct snd_pcm_substream *ss) { … } static int snd_ad1889_capture_close(struct snd_pcm_substream *ss) { … } static int snd_ad1889_playback_prepare(struct snd_pcm_substream *ss) { … } static int snd_ad1889_capture_prepare(struct snd_pcm_substream *ss) { … } /* 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) { … } /* 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) { … } /* Called in atomic context with IRQ disabled */ static snd_pcm_uframes_t snd_ad1889_playback_pointer(struct snd_pcm_substream *ss) { … } /* Called in atomic context with IRQ disabled */ static snd_pcm_uframes_t snd_ad1889_capture_pointer(struct snd_pcm_substream *ss) { … } static const struct snd_pcm_ops snd_ad1889_playback_ops = …; static const struct snd_pcm_ops snd_ad1889_capture_ops = …; static irqreturn_t snd_ad1889_interrupt(int irq, void *dev_id) { … } static int snd_ad1889_pcm_init(struct snd_ad1889 *chip, int device) { … } static void snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { … } static void snd_ad1889_proc_init(struct snd_ad1889 *chip) { … } static const struct ac97_quirk ac97_quirks[] = …; static void snd_ad1889_ac97_xinit(struct snd_ad1889 *chip) { … } static int snd_ad1889_ac97_init(struct snd_ad1889 *chip, const char *quirk_override) { … } static void snd_ad1889_free(struct snd_card *card) { … } static int snd_ad1889_create(struct snd_card *card, struct pci_dev *pci) { … } static int __snd_ad1889_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { … } static int snd_ad1889_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { … } static const struct pci_device_id snd_ad1889_ids[] = …; MODULE_DEVICE_TABLE(pci, snd_ad1889_ids); static struct pci_driver ad1889_pci_driver = …; module_pci_driver(…) …;
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