// SPDX-License-Identifier: GPL-2.0-or-later /* * bt87x.c - Brooktree Bt878/Bt879 driver for ALSA * * Copyright (c) Clemens Ladisch <[email protected]> * * based on btaudio.c by Gerd Knorr <[email protected]> */ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/pci.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/bitops.h> #include <linux/io.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/control.h> #include <sound/initval.h> MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; static int index[SNDRV_CARDS] = …; /* Exclude the first card */ static char *id[SNDRV_CARDS] = …; /* ID for this card */ static bool enable[SNDRV_CARDS] = …; /* Enable this card */ static int digital_rate[SNDRV_CARDS]; /* digital input rate */ static bool load_all; /* allow to load cards not the allowlist */ module_param_array(…); MODULE_PARM_DESC(…) …; module_param_array(…); MODULE_PARM_DESC(…) …; module_param_array(…); MODULE_PARM_DESC(…) …; module_param_array(…); MODULE_PARM_DESC(…) …; module_param(load_all, bool, 0444); MODULE_PARM_DESC(…) …; /* register offsets */ #define REG_INT_STAT … #define REG_INT_MASK … #define REG_GPIO_DMA_CTL … #define REG_PACKET_LEN … #define REG_RISC_STRT_ADD … #define REG_RISC_COUNT … /* interrupt bits */ #define INT_OFLOW … #define INT_RISCI … #define INT_FBUS … #define INT_FTRGT … #define INT_FDSR … #define INT_PPERR … #define INT_RIPERR … #define INT_PABORT … #define INT_OCERR … #define INT_SCERR … #define INT_RISC_EN … #define INT_RISCS_SHIFT … /* audio control bits */ #define CTL_FIFO_ENABLE … #define CTL_RISC_ENABLE … #define CTL_PKTP_4 … #define CTL_PKTP_8 … #define CTL_PKTP_16 … #define CTL_ACAP_EN … #define CTL_DA_APP … #define CTL_DA_IOM_AFE … #define CTL_DA_IOM_DA … #define CTL_DA_SDR_SHIFT … #define CTL_DA_SDR_MASK … #define CTL_DA_LMT … #define CTL_DA_ES2 … #define CTL_DA_SBR … #define CTL_DA_DPM … #define CTL_DA_LRD_SHIFT … #define CTL_DA_MLB … #define CTL_DA_LRI … #define CTL_DA_SCE … #define CTL_A_SEL_STV … #define CTL_A_SEL_SFM … #define CTL_A_SEL_SML … #define CTL_A_SEL_SMXC … #define CTL_A_SEL_SHIFT … #define CTL_A_SEL_MASK … #define CTL_A_PWRDN … #define CTL_A_G2X … #define CTL_A_GAIN_SHIFT … #define CTL_A_GAIN_MASK … /* RISC instruction opcodes */ #define RISC_WRITE … #define RISC_WRITEC … #define RISC_SKIP … #define RISC_JUMP … #define RISC_SYNC … /* RISC instruction bits */ #define RISC_BYTES_ENABLE … #define RISC_RESYNC … #define RISC_SET_STATUS_SHIFT … #define RISC_RESET_STATUS_SHIFT … #define RISC_IRQ … #define RISC_EOL … #define RISC_SOL … /* SYNC status bits values */ #define RISC_SYNC_FM1 … #define RISC_SYNC_VRO … #define ANALOG_CLOCK … #ifdef CONFIG_SND_BT87X_OVERCLOCK #define CLOCK_DIV_MIN … #else #define CLOCK_DIV_MIN … #endif #define CLOCK_DIV_MAX … #define ERROR_INTERRUPTS … #define MY_INTERRUPTS … /* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */ #define MAX_RISC_SIZE … /* Cards with configuration information */ enum snd_bt87x_boardid { … }; /* Card configuration */ struct snd_bt87x_board { … }; static const struct snd_bt87x_board snd_bt87x_boards[] = …; struct snd_bt87x { … }; enum { … }; static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg) { … } static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value) { … } static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream, unsigned int periods, unsigned int period_bytes) { … } static void snd_bt87x_free_risc(struct snd_bt87x *chip) { … } static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status) { … } static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id) { … } static const struct snd_pcm_hardware snd_bt87x_digital_hw = …; static const struct snd_pcm_hardware snd_bt87x_analog_hw = …; static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) { … } static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) { … } static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream) { … } static int snd_bt87x_close(struct snd_pcm_substream *substream) { … } static int snd_bt87x_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { … } static int snd_bt87x_hw_free(struct snd_pcm_substream *substream) { … } static int snd_bt87x_prepare(struct snd_pcm_substream *substream) { … } static int snd_bt87x_start(struct snd_bt87x *chip) { … } static int snd_bt87x_stop(struct snd_bt87x *chip) { … } static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd) { … } static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream) { … } static const struct snd_pcm_ops snd_bt87x_pcm_ops = …; static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *info) { … } static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value) { … } static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value) { … } static const struct snd_kcontrol_new snd_bt87x_capture_volume = …; #define snd_bt87x_capture_boost_info … static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value) { … } static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value) { … } static const struct snd_kcontrol_new snd_bt87x_capture_boost = …; static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *info) { … } static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value) { … } static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value) { … } static const struct snd_kcontrol_new snd_bt87x_capture_source = …; static void snd_bt87x_free(struct snd_card *card) { … } static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name) { … } static int snd_bt87x_create(struct snd_card *card, struct pci_dev *pci) { … } #define BT_DEVICE(chip, subvend, subdev, id) … /* driver_data is the card id for that device */ static const struct pci_device_id snd_bt87x_ids[] = …; MODULE_DEVICE_TABLE(pci, snd_bt87x_ids); /* cards known not to have audio * (DVB cards use the audio function to transfer MPEG data) */ static struct { … } denylist[] = …; static struct pci_driver driver; /* return the id of the card, or a negative value if it's on the denylist */ static int snd_bt87x_detect_card(struct pci_dev *pci) { … } static int __snd_bt87x_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { … } static int snd_bt87x_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { … } /* default entries for all Bt87x cards - it's not exported */ /* driver_data is set to 0 to call detection */ static const struct pci_device_id snd_bt87x_default_ids[] = …; static struct pci_driver driver = …; static int __init alsa_card_bt87x_init(void) { … } static void __exit alsa_card_bt87x_exit(void) { … } module_init(…) … module_exit(…)
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