// SPDX-License-Identifier: GPL-2.0-or-later /* * ALSA driver for ICEnsemble VT1724 (Envy24HT) * * Lowlevel functions for ESI Maya44 cards * * Copyright (c) 2009 Takashi Iwai <[email protected]> * Based on the patches by Rainer Zimmermann <[email protected]> */ #include <linux/init.h> #include <linux/slab.h> #include <sound/core.h> #include <sound/control.h> #include <sound/pcm.h> #include <sound/tlv.h> #include "ice1712.h" #include "envy24ht.h" #include "maya44.h" /* WM8776 register indexes */ #define WM8776_REG_HEADPHONE_L … #define WM8776_REG_HEADPHONE_R … #define WM8776_REG_HEADPHONE_MASTER … #define WM8776_REG_DAC_ATTEN_L … #define WM8776_REG_DAC_ATTEN_R … #define WM8776_REG_DAC_ATTEN_MASTER … #define WM8776_REG_DAC_PHASE … #define WM8776_REG_DAC_CONTROL … #define WM8776_REG_DAC_MUTE … #define WM8776_REG_DAC_DEEMPH … #define WM8776_REG_DAC_IF_CONTROL … #define WM8776_REG_ADC_IF_CONTROL … #define WM8776_REG_MASTER_MODE_CONTROL … #define WM8776_REG_POWERDOWN … #define WM8776_REG_ADC_ATTEN_L … #define WM8776_REG_ADC_ATTEN_R … #define WM8776_REG_ADC_ALC1 … #define WM8776_REG_ADC_ALC2 … #define WM8776_REG_ADC_ALC3 … #define WM8776_REG_ADC_NOISE_GATE … #define WM8776_REG_ADC_LIMITER … #define WM8776_REG_ADC_MUX … #define WM8776_REG_OUTPUT_MUX … #define WM8776_REG_RESET … #define WM8776_NUM_REGS … /* clock ratio identifiers for snd_wm8776_set_rate() */ #define WM8776_CLOCK_RATIO_128FS … #define WM8776_CLOCK_RATIO_192FS … #define WM8776_CLOCK_RATIO_256FS … #define WM8776_CLOCK_RATIO_384FS … #define WM8776_CLOCK_RATIO_512FS … #define WM8776_CLOCK_RATIO_768FS … enum { … }; enum { … }; struct snd_wm8776 { … }; struct snd_maya44 { … }; /* write the given register and save the data to the cache */ static void wm8776_write(struct snd_ice1712 *ice, struct snd_wm8776 *wm, unsigned char reg, unsigned short val) { … } /* * update the given register with and/or mask and save the data to the cache */ static int wm8776_write_bits(struct snd_ice1712 *ice, struct snd_wm8776 *wm, unsigned char reg, unsigned short mask, unsigned short val) { … } /* * WM8776 volume controls */ struct maya_vol_info { … }; static const struct maya_vol_info vol_info[WM_NUM_VOLS] = …; /* * dB tables */ /* headphone output: mute, -73..+6db (1db step) */ static const DECLARE_TLV_DB_SCALE(db_scale_hp, -7400, 100, 1); /* DAC output: mute, -127..0db (0.5db step) */ static const DECLARE_TLV_DB_SCALE(db_scale_dac, -12750, 50, 1); /* ADC gain: mute, -21..+24db (0.5db step) */ static const DECLARE_TLV_DB_SCALE(db_scale_adc, -2100, 50, 1); static int maya_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int maya_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int maya_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * WM8776 switch controls */ #define COMPOSE_SW_VAL(idx, reg, mask) … #define GET_SW_VAL_IDX(val) … #define GET_SW_VAL_REG(val) … #define GET_SW_VAL_MASK(val) … #define maya_sw_info … static int maya_sw_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int maya_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * GPIO pins (known ones for maya44) */ #define GPIO_PHANTOM_OFF … #define GPIO_MIC_RELAY … #define GPIO_SPDIF_IN_INV … #define GPIO_MUST_BE_0 … /* * GPIO switch controls */ #define COMPOSE_GPIO_VAL(shift, inv) … #define GET_GPIO_VAL_SHIFT(val) … #define GET_GPIO_VAL_INV(val) … static int maya_set_gpio_bits(struct snd_ice1712 *ice, unsigned int mask, unsigned int bits) { … } #define maya_gpio_sw_info … static int maya_gpio_sw_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int maya_gpio_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * capture source selection */ /* known working input slots (0-4) */ #define MAYA_LINE_IN … #define MAYA_MIC_IN … static void wm8776_select_input(struct snd_maya44 *chip, int idx, int line) { … } static int maya_rec_src_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int maya_rec_src_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int maya_rec_src_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * Maya44 routing switch settings have different meanings than the standard * ice1724 switches as defined in snd_vt1724_pro_route_info (ice1724.c). */ static int maya_pb_route_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int maya_pb_route_shift(int idx) { … } static int maya_pb_route_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int maya_pb_route_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * controls to be added */ static const struct snd_kcontrol_new maya_controls[] = …; static int maya44_add_controls(struct snd_ice1712 *ice) { … } /* * initialize a wm8776 chip */ static void wm8776_init(struct snd_ice1712 *ice, struct snd_wm8776 *wm, unsigned int addr) { … } /* * change the rate on the WM8776 codecs. * this assumes that the VT17xx's rate is changed by the calling function. * NOTE: even though the WM8776's are running in slave mode and rate * selection is automatic, we need to call snd_wm8776_set_rate() here * to make sure some flags are set correctly. */ static void set_rate(struct snd_ice1712 *ice, unsigned int rate) { … } /* * supported sample rates (to override the default one) */ static const unsigned int rates[] = …; /* playback rates: 32..192 kHz */ static const struct snd_pcm_hw_constraint_list dac_rates = …; /* * chip addresses on I2C bus */ static const unsigned char wm8776_addr[2] = …; /* * initialize the chip */ static int maya44_init(struct snd_ice1712 *ice) { … } /* * Maya44 boards don't provide the EEPROM data except for the vendor IDs. * hence the driver needs to sets up it properly. */ static const unsigned char maya44_eeprom[] = …; /* entry point */ struct snd_ice1712_card_info snd_vt1724_maya44_cards[] = …;
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