// SPDX-License-Identifier: GPL-2.0-or-later /* * ALSA modem driver for Intel ICH (i8x0) chipsets * * Copyright (c) 2000 Jaroslav Kysela <[email protected]> * * This is modified (by Sasha Khapyorsky <[email protected]>) version * of ALSA ICH sound driver intel8x0.c . */ #include <linux/io.h> #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 <sound/core.h> #include <sound/pcm.h> #include <sound/ac97_codec.h> #include <sound/info.h> #include <sound/initval.h> MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; static int index = …; /* Exclude the first card */ static char *id = …; /* ID for this card */ static int ac97_clock; module_param(index, int, 0444); MODULE_PARM_DESC(…) …; module_param(id, charp, 0444); MODULE_PARM_DESC(…) …; module_param(ac97_clock, int, 0444); MODULE_PARM_DESC(…) …; /* just for backward compatibility */ static bool enable; module_param(enable, bool, 0444); /* * Direct registers */ enum { … }; #define ICHREG(x) … #define DEFINE_REGSET(name,base) … /* busmaster blocks */ DEFINE_REGSET(OFF, 0); /* offset */ /* values for each busmaster block */ /* LVI */ #define ICH_REG_LVI_MASK … /* SR */ #define ICH_FIFOE … #define ICH_BCIS … #define ICH_LVBCI … #define ICH_CELV … #define ICH_DCH … /* PIV */ #define ICH_REG_PIV_MASK … /* CR */ #define ICH_IOCE … #define ICH_FEIE … #define ICH_LVBIE … #define ICH_RESETREGS … #define ICH_STARTBM … /* global block */ #define ICH_REG_GLOB_CNT … #define ICH_TRIE … #define ICH_SRIE … #define ICH_PRIE … #define ICH_ACLINK … #define ICH_AC97WARM … #define ICH_AC97COLD … #define ICH_GIE … #define ICH_REG_GLOB_STA … #define ICH_TRI … #define ICH_TCR … #define ICH_BCS … #define ICH_SPINT … #define ICH_P2INT … #define ICH_M2INT … #define ICH_SAMPLE_CAP … #define ICH_MULTICHAN_CAP … #define ICH_MD3 … #define ICH_AD3 … #define ICH_RCS … #define ICH_BIT3 … #define ICH_BIT2 … #define ICH_BIT1 … #define ICH_SRI … #define ICH_PRI … #define ICH_SCR … #define ICH_PCR … #define ICH_MCINT … #define ICH_POINT … #define ICH_PIINT … #define ICH_NVSPINT … #define ICH_MOINT … #define ICH_MIINT … #define ICH_GSCI … #define ICH_REG_ACC_SEMA … #define ICH_CAS … #define ICH_MAX_FRAGS … /* * */ enum { … }; enum { … }; #define get_ichdev(substream) … struct ichdev { … }; struct intel8x0m { … }; static const struct pci_device_id snd_intel8x0m_ids[] = …; MODULE_DEVICE_TABLE(pci, snd_intel8x0m_ids); /* * Lowlevel I/O - busmaster */ static inline u8 igetbyte(struct intel8x0m *chip, u32 offset) { … } static inline u16 igetword(struct intel8x0m *chip, u32 offset) { … } static inline u32 igetdword(struct intel8x0m *chip, u32 offset) { … } static inline void iputbyte(struct intel8x0m *chip, u32 offset, u8 val) { … } static inline void iputword(struct intel8x0m *chip, u32 offset, u16 val) { … } static inline void iputdword(struct intel8x0m *chip, u32 offset, u32 val) { … } /* * Lowlevel I/O - AC'97 registers */ static inline u16 iagetword(struct intel8x0m *chip, u32 offset) { … } static inline void iaputword(struct intel8x0m *chip, u32 offset, u16 val) { … } /* * Basic I/O */ /* * access to AC97 codec via normal i/o (for ICH and SIS7013) */ /* return the GLOB_STA bit for the corresponding codec */ static unsigned int get_ich_codec_bit(struct intel8x0m *chip, unsigned int codec) { … } static int snd_intel8x0m_codec_semaphore(struct intel8x0m *chip, unsigned int codec) { … } static void snd_intel8x0m_codec_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val) { … } static unsigned short snd_intel8x0m_codec_read(struct snd_ac97 *ac97, unsigned short reg) { … } /* * DMA I/O */ static void snd_intel8x0m_setup_periods(struct intel8x0m *chip, struct ichdev *ichdev) { … } /* * Interrupt handler */ static inline void snd_intel8x0m_update(struct intel8x0m *chip, struct ichdev *ichdev) { … } static irqreturn_t snd_intel8x0m_interrupt(int irq, void *dev_id) { … } /* * PCM part */ static int snd_intel8x0m_pcm_trigger(struct snd_pcm_substream *substream, int cmd) { … } static snd_pcm_uframes_t snd_intel8x0m_pcm_pointer(struct snd_pcm_substream *substream) { … } static int snd_intel8x0m_pcm_prepare(struct snd_pcm_substream *substream) { … } static const struct snd_pcm_hardware snd_intel8x0m_stream = …; static int snd_intel8x0m_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev) { … } static int snd_intel8x0m_playback_open(struct snd_pcm_substream *substream) { … } static int snd_intel8x0m_playback_close(struct snd_pcm_substream *substream) { … } static int snd_intel8x0m_capture_open(struct snd_pcm_substream *substream) { … } static int snd_intel8x0m_capture_close(struct snd_pcm_substream *substream) { … } static const struct snd_pcm_ops snd_intel8x0m_playback_ops = …; static const struct snd_pcm_ops snd_intel8x0m_capture_ops = …; struct ich_pcm_table { … }; static int snd_intel8x0m_pcm1(struct intel8x0m *chip, int device, const struct ich_pcm_table *rec) { … } static const struct ich_pcm_table intel_pcms[] = …; static int snd_intel8x0m_pcm(struct intel8x0m *chip) { … } /* * Mixer part */ static void snd_intel8x0m_mixer_free_ac97_bus(struct snd_ac97_bus *bus) { … } static void snd_intel8x0m_mixer_free_ac97(struct snd_ac97 *ac97) { … } static int snd_intel8x0m_mixer(struct intel8x0m *chip, int ac97_clock) { … } /* * */ static int snd_intel8x0m_ich_chip_init(struct intel8x0m *chip, int probing) { … } static int snd_intel8x0m_chip_init(struct intel8x0m *chip, int probing) { … } static void snd_intel8x0m_free(struct snd_card *card) { … } /* * power management */ static int intel8x0m_suspend(struct device *dev) { … } static int intel8x0m_resume(struct device *dev) { … } static DEFINE_SIMPLE_DEV_PM_OPS(intel8x0m_pm, intel8x0m_suspend, intel8x0m_resume); static void snd_intel8x0m_proc_read(struct snd_info_entry * entry, struct snd_info_buffer *buffer) { … } static void snd_intel8x0m_proc_init(struct intel8x0m *chip) { … } struct ich_reg_info { … }; static int snd_intel8x0m_init(struct snd_card *card, struct pci_dev *pci, unsigned long device_type) { … } static struct shortname_table { … } shortnames[] = …; static int __snd_intel8x0m_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { … } static int snd_intel8x0m_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { … } static struct pci_driver intel8x0m_driver = …; module_pci_driver(…) …;
Codebase Browser
linux