// SPDX-License-Identifier: GPL-2.0-or-later /* * ALSA driver for ICEnsemble ICE1724 (Envy24) * * Lowlevel functions for Terratec PHASE 22 * * Copyright (c) 2005 Misha Zhilin <[email protected]> */ /* PHASE 22 overview: * Audio controller: VIA Envy24HT-S (slightly trimmed down Envy24HT, 4in/4out) * Analog chip: AK4524 (partially via Philip's 74HCT125) * Digital receiver: CS8414-CS (supported in this release) * PHASE 22 revision 2.0 and Terrasoniq/Musonik TS22PCI have CS8416 * (support status unknown, please test and report) * * Envy connects to AK4524 * - CS directly from GPIO 10 * - CCLK via 74HCT125's gate #4 from GPIO 4 * - CDTI via 74HCT125's gate #2 from GPIO 5 * CDTI may be completely blocked by 74HCT125's gate #1 * controlled by GPIO 3 */ /* PHASE 28 overview: * Audio controller: VIA Envy24HT (full untrimmed version, 4in/8out) * Analog chip: WM8770 (8 channel 192k DAC, 2 channel 96k ADC) * Digital receiver: CS8414-CS (supported in this release) */ #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 "ice1712.h" #include "envy24ht.h" #include "phase.h" #include <sound/tlv.h> /* AC97 register cache for Phase28 */ struct phase28_spec { … }; /* WM8770 registers */ #define WM_DAC_ATTEN … #define WM_DAC_MASTER_ATTEN … #define WM_DAC_DIG_ATTEN … #define WM_DAC_DIG_MASTER_ATTEN … #define WM_PHASE_SWAP … #define WM_DAC_CTRL1 … #define WM_MUTE … #define WM_DAC_CTRL2 … #define WM_INT_CTRL … #define WM_MASTER … #define WM_POWERDOWN … #define WM_ADC_GAIN … #define WM_ADC_MUX … #define WM_OUT_MUX1 … #define WM_OUT_MUX2 … #define WM_RESET … /* * Logarithmic volume values for WM8770 * Computed as 20 * Log10(255 / x) */ static const unsigned char wm_vol[256] = …; #define WM_VOL_MAX … #define WM_VOL_MUTE … static const struct snd_akm4xxx akm_phase22 = …; static const struct snd_ak4xxx_private akm_phase22_priv = …; static int phase22_init(struct snd_ice1712 *ice) { … } static int phase22_add_controls(struct snd_ice1712 *ice) { … } static const unsigned char phase22_eeprom[] = …; static const unsigned char phase28_eeprom[] = …; /* * write data in the SPI mode */ static void phase28_spi_write(struct snd_ice1712 *ice, unsigned int cs, unsigned int data, int bits) { … } /* * 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 */ static void wm_put_nocache(struct snd_ice1712 *ice, int reg, unsigned short val) { … } /* * set the register value of WM codec and remember it */ static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val) { … } static void wm_set_vol(struct snd_ice1712 *ice, unsigned int index, unsigned short vol, unsigned short master) { … } /* * DAC mute control */ #define wm_pcm_mute_info … static int wm_pcm_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int wm_pcm_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * Master volume attenuation mixer control */ static int wm_master_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int wm_master_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int wm_master_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int phase28_init(struct snd_ice1712 *ice) { … } /* * DAC volume attenuation mixer control */ static int wm_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int wm_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int wm_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * WM8770 mute control */ static int wm_mute_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int wm_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int wm_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * WM8770 master mute control */ #define wm_master_mute_info … static int wm_master_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int wm_master_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* digital master volume */ #define PCM_0dB … #define PCM_RES … #define PCM_MIN … static int wm_pcm_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int wm_pcm_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int wm_pcm_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * Deemphasis */ #define phase28_deemp_info … static int phase28_deemp_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int phase28_deemp_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* * ADC Oversampling */ static int phase28_oversampling_info(struct snd_kcontrol *k, struct snd_ctl_elem_info *uinfo) { … } static int phase28_oversampling_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int phase28_oversampling_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static const DECLARE_TLV_DB_SCALE(db_scale_wm_dac, -12700, 100, 1); static const DECLARE_TLV_DB_SCALE(db_scale_wm_pcm, -6400, 50, 1); static const struct snd_kcontrol_new phase28_dac_controls[] = …; static const struct snd_kcontrol_new wm_controls[] = …; static int phase28_add_controls(struct snd_ice1712 *ice) { … } struct snd_ice1712_card_info snd_vt1724_phase_cards[] = …;
Codebase Browser
linux