// SPDX-License-Identifier: GPL-2.0-or-later /* * ALSA driver for ICEnsemble VT1724 (Envy24HT) * * Lowlevel functions for Pontis MS300 * * Copyright (c) 2004 Takashi Iwai <[email protected]> */ #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/mutex.h> #include <sound/core.h> #include <sound/info.h> #include <sound/tlv.h> #include "ice1712.h" #include "envy24ht.h" #include "pontis.h" /* I2C addresses */ #define WM_DEV … #define CS_DEV … /* WM8776 registers */ #define WM_HP_ATTEN_L … #define WM_HP_ATTEN_R … #define WM_HP_MASTER … /* override LLR */ #define WM_DAC_ATTEN_L … #define WM_DAC_ATTEN_R … #define WM_DAC_MASTER … #define WM_PHASE_SWAP … #define WM_DAC_CTRL1 … #define WM_DAC_MUTE … #define WM_DAC_CTRL2 … #define WM_DAC_INT … #define WM_ADC_INT … #define WM_MASTER_CTRL … #define WM_POWERDOWN … #define WM_ADC_ATTEN_L … #define WM_ADC_ATTEN_R … #define WM_ALC_CTRL1 … #define WM_ALC_CTRL2 … #define WM_ALC_CTRL3 … #define WM_NOISE_GATE … #define WM_LIMITER … #define WM_ADC_MUX … #define WM_OUT_MUX … #define WM_RESET … /* * GPIO */ #define PONTIS_CS_CS … #define PONTIS_CS_CLK … #define PONTIS_CS_RDATA … #define PONTIS_CS_WDATA … /* * get the current register value of WM codec */ static unsigned short wm_get(struct snd_ice1712 *ice, int reg) { … } /* * set the register value of WM codec and remember it */ static void wm_put_nocache(struct snd_ice1712 *ice, int reg, unsigned short val) { … } static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val) { … } /* * DAC volume attenuation mixer control (-64dB to 0dB) */ #define DAC_0dB … #define DAC_RES … #define DAC_MIN … static int wm_dac_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int wm_dac_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int wm_dac_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * ADC gain mixer control (-64dB to 0dB) */ #define ADC_0dB … #define ADC_RES … #define ADC_MIN … static int wm_adc_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int wm_adc_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int wm_adc_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * ADC input mux mixer control */ #define wm_adc_mux_info … static int wm_adc_mux_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int wm_adc_mux_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * Analog bypass (In -> Out) */ #define wm_bypass_info … static int wm_bypass_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int wm_bypass_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * Left/Right swap */ #define wm_chswap_info … static int wm_chswap_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int wm_chswap_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * write data in the SPI mode */ static void set_gpio_bit(struct snd_ice1712 *ice, unsigned int bit, int val) { … } static void spi_send_byte(struct snd_ice1712 *ice, unsigned char data) { … } static unsigned int spi_read_byte(struct snd_ice1712 *ice) { … } static void spi_write(struct snd_ice1712 *ice, unsigned int dev, unsigned int reg, unsigned int data) { … } static unsigned int spi_read(struct snd_ice1712 *ice, unsigned int dev, unsigned int reg) { … } /* * SPDIF input source */ static int cs_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int cs_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int cs_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * GPIO controls */ static int pontis_gpio_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int pontis_gpio_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int pontis_gpio_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int pontis_gpio_dir_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int pontis_gpio_dir_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int pontis_gpio_data_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int pontis_gpio_data_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static const DECLARE_TLV_DB_SCALE(db_scale_volume, -6400, 50, 1); /* * mixers */ static const struct snd_kcontrol_new pontis_controls[] = …; /* * WM codec registers */ static void wm_proc_regs_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { … } static void wm_proc_regs_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { … } static void wm_proc_init(struct snd_ice1712 *ice) { … } static void cs_proc_regs_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { … } static void cs_proc_init(struct snd_ice1712 *ice) { … } static int pontis_add_controls(struct snd_ice1712 *ice) { … } /* * initialize the chip */ static int pontis_init(struct snd_ice1712 *ice) { … } /* * Pontis boards don't provide the EEPROM data at all. * hence the driver needs to sets up it properly. */ static const unsigned char pontis_eeprom[] = …; /* entry point */ struct snd_ice1712_card_info snd_vt1720_pontis_cards[] = …;
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