// SPDX-License-Identifier: GPL-2.0 /* * ALSA SoC CPCAP codec driver * * Copyright (C) 2017 - 2018 Sebastian Reichel <[email protected]> * * Very loosely based on original driver from Motorola: * Copyright (C) 2007 - 2009 Motorola, Inc. */ #include <linux/module.h> #include <linux/regmap.h> #include <linux/platform_device.h> #include <linux/mfd/motorola-cpcap.h> #include <sound/core.h> #include <sound/soc.h> #include <sound/tlv.h> /* Register 512 CPCAP_REG_VAUDIOC --- Audio Regulator and Bias Voltage */ #define CPCAP_BIT_AUDIO_LOW_PWR … #define CPCAP_BIT_AUD_LOWPWR_SPEED … #define CPCAP_BIT_VAUDIOPRISTBY … #define CPCAP_BIT_VAUDIO_MODE1 … #define CPCAP_BIT_VAUDIO_MODE0 … #define CPCAP_BIT_V_AUDIO_EN … /* Register 513 CPCAP_REG_CC --- CODEC */ #define CPCAP_BIT_CDC_CLK2 … #define CPCAP_BIT_CDC_CLK1 … #define CPCAP_BIT_CDC_CLK0 … #define CPCAP_BIT_CDC_SR3 … #define CPCAP_BIT_CDC_SR2 … #define CPCAP_BIT_CDC_SR1 … #define CPCAP_BIT_CDC_SR0 … #define CPCAP_BIT_CDC_CLOCK_TREE_RESET … #define CPCAP_BIT_MIC2_CDC_EN … #define CPCAP_BIT_CDC_EN_RX … #define CPCAP_BIT_DF_RESET … #define CPCAP_BIT_MIC1_CDC_EN … #define CPCAP_BIT_AUDOHPF_1 … #define CPCAP_BIT_AUDOHPF_0 … #define CPCAP_BIT_AUDIHPF_1 … #define CPCAP_BIT_AUDIHPF_0 … /* Register 514 CPCAP_REG_CDI --- CODEC Digital Audio Interface */ #define CPCAP_BIT_CDC_PLL_SEL … #define CPCAP_BIT_CLK_IN_SEL … #define CPCAP_BIT_DIG_AUD_IN … #define CPCAP_BIT_CDC_CLK_EN … #define CPCAP_BIT_CDC_DIG_AUD_FS1 … #define CPCAP_BIT_CDC_DIG_AUD_FS0 … #define CPCAP_BIT_MIC2_TIMESLOT2 … #define CPCAP_BIT_MIC2_TIMESLOT1 … #define CPCAP_BIT_MIC2_TIMESLOT0 … #define CPCAP_BIT_MIC1_RX_TIMESLOT2 … #define CPCAP_BIT_MIC1_RX_TIMESLOT1 … #define CPCAP_BIT_MIC1_RX_TIMESLOT0 … #define CPCAP_BIT_FS_INV … #define CPCAP_BIT_CLK_INV … #define CPCAP_BIT_SMB_CDC … /* Register 515 CPCAP_REG_SDAC --- Stereo DAC */ #define CPCAP_BIT_FSYNC_CLK_IN_COMMON … #define CPCAP_BIT_SLAVE_PLL_CLK_INPUT … #define CPCAP_BIT_ST_CLOCK_TREE_RESET … #define CPCAP_BIT_DF_RESET_ST_DAC … #define CPCAP_BIT_ST_SR3 … #define CPCAP_BIT_ST_SR2 … #define CPCAP_BIT_ST_SR1 … #define CPCAP_BIT_ST_SR0 … #define CPCAP_BIT_ST_DAC_CLK2 … #define CPCAP_BIT_ST_DAC_CLK1 … #define CPCAP_BIT_ST_DAC_CLK0 … #define CPCAP_BIT_ST_DAC_EN … /* Register 516 CPCAP_REG_SDACDI --- Stereo DAC Digital Audio Interface */ #define CPCAP_BIT_ST_L_TIMESLOT2 … #define CPCAP_BIT_ST_L_TIMESLOT1 … #define CPCAP_BIT_ST_L_TIMESLOT0 … #define CPCAP_BIT_ST_R_TIMESLOT2 … #define CPCAP_BIT_ST_R_TIMESLOT1 … #define CPCAP_BIT_ST_R_TIMESLOT0 … #define CPCAP_BIT_ST_DAC_CLK_IN_SEL … #define CPCAP_BIT_ST_FS_INV … #define CPCAP_BIT_ST_CLK_INV … #define CPCAP_BIT_ST_DIG_AUD_FS1 … #define CPCAP_BIT_ST_DIG_AUD_FS0 … #define CPCAP_BIT_DIG_AUD_IN_ST_DAC … #define CPCAP_BIT_ST_CLK_EN … #define CPCAP_BIT_SMB_ST_DAC … /* Register 517 CPCAP_REG_TXI --- TX Interface */ #define CPCAP_BIT_PTT_TH … #define CPCAP_BIT_PTT_CMP_EN … #define CPCAP_BIT_HS_ID_TX … #define CPCAP_BIT_MB_ON2 … #define CPCAP_BIT_MB_ON1L … #define CPCAP_BIT_MB_ON1R … #define CPCAP_BIT_RX_L_ENCODE … #define CPCAP_BIT_RX_R_ENCODE … #define CPCAP_BIT_MIC2_MUX … #define CPCAP_BIT_MIC2_PGA_EN … #define CPCAP_BIT_CDET_DIS … #define CPCAP_BIT_EMU_MIC_MUX … #define CPCAP_BIT_HS_MIC_MUX … #define CPCAP_BIT_MIC1_MUX … #define CPCAP_BIT_MIC1_PGA_EN … #define CPCAP_BIT_DLM … /* Register 518 CPCAP_REG_TXMP --- Mic Gain */ #define CPCAP_BIT_MB_BIAS_R1 … #define CPCAP_BIT_MB_BIAS_R0 … #define CPCAP_BIT_MIC2_GAIN_4 … #define CPCAP_BIT_MIC2_GAIN_3 … #define CPCAP_BIT_MIC2_GAIN_2 … #define CPCAP_BIT_MIC2_GAIN_1 … #define CPCAP_BIT_MIC2_GAIN_0 … #define CPCAP_BIT_MIC1_GAIN_4 … #define CPCAP_BIT_MIC1_GAIN_3 … #define CPCAP_BIT_MIC1_GAIN_2 … #define CPCAP_BIT_MIC1_GAIN_1 … #define CPCAP_BIT_MIC1_GAIN_0 … /* Register 519 CPCAP_REG_RXOA --- RX Output Amplifier */ #define CPCAP_BIT_UNUSED_519_15 … #define CPCAP_BIT_UNUSED_519_14 … #define CPCAP_BIT_UNUSED_519_13 … #define CPCAP_BIT_STDAC_LOW_PWR_DISABLE … #define CPCAP_BIT_HS_LOW_PWR … #define CPCAP_BIT_HS_ID_RX … #define CPCAP_BIT_ST_HS_CP_EN … #define CPCAP_BIT_EMU_SPKR_R_EN … #define CPCAP_BIT_EMU_SPKR_L_EN … #define CPCAP_BIT_HS_L_EN … #define CPCAP_BIT_HS_R_EN … #define CPCAP_BIT_A4_LINEOUT_L_EN … #define CPCAP_BIT_A4_LINEOUT_R_EN … #define CPCAP_BIT_A2_LDSP_L_EN … #define CPCAP_BIT_A2_LDSP_R_EN … #define CPCAP_BIT_A1_EAR_EN … /* Register 520 CPCAP_REG_RXVC --- RX Volume Control */ #define CPCAP_BIT_VOL_EXT3 … #define CPCAP_BIT_VOL_EXT2 … #define CPCAP_BIT_VOL_EXT1 … #define CPCAP_BIT_VOL_EXT0 … #define CPCAP_BIT_VOL_DAC3 … #define CPCAP_BIT_VOL_DAC2 … #define CPCAP_BIT_VOL_DAC1 … #define CPCAP_BIT_VOL_DAC0 … #define CPCAP_BIT_VOL_DAC_LSB_1dB1 … #define CPCAP_BIT_VOL_DAC_LSB_1dB0 … #define CPCAP_BIT_VOL_CDC3 … #define CPCAP_BIT_VOL_CDC2 … #define CPCAP_BIT_VOL_CDC1 … #define CPCAP_BIT_VOL_CDC0 … #define CPCAP_BIT_VOL_CDC_LSB_1dB1 … #define CPCAP_BIT_VOL_CDC_LSB_1dB0 … /* Register 521 CPCAP_REG_RXCOA --- Codec to Output Amp Switches */ #define CPCAP_BIT_PGA_CDC_EN … #define CPCAP_BIT_CDC_SW … #define CPCAP_BIT_PGA_OUTR_USBDP_CDC_SW … #define CPCAP_BIT_PGA_OUTL_USBDN_CDC_SW … #define CPCAP_BIT_ALEFT_HS_CDC_SW … #define CPCAP_BIT_ARIGHT_HS_CDC_SW … #define CPCAP_BIT_A4_LINEOUT_L_CDC_SW … #define CPCAP_BIT_A4_LINEOUT_R_CDC_SW … #define CPCAP_BIT_A2_LDSP_L_CDC_SW … #define CPCAP_BIT_A2_LDSP_R_CDC_SW … #define CPCAP_BIT_A1_EAR_CDC_SW … /* Register 522 CPCAP_REG_RXSDOA --- RX Stereo DAC to Output Amp Switches */ #define CPCAP_BIT_PGA_DAC_EN … #define CPCAP_BIT_ST_DAC_SW … #define CPCAP_BIT_MONO_DAC1 … #define CPCAP_BIT_MONO_DAC0 … #define CPCAP_BIT_PGA_OUTR_USBDP_DAC_SW … #define CPCAP_BIT_PGA_OUTL_USBDN_DAC_SW … #define CPCAP_BIT_ALEFT_HS_DAC_SW … #define CPCAP_BIT_ARIGHT_HS_DAC_SW … #define CPCAP_BIT_A4_LINEOUT_L_DAC_SW … #define CPCAP_BIT_A4_LINEOUT_R_DAC_SW … #define CPCAP_BIT_A2_LDSP_L_DAC_SW … #define CPCAP_BIT_A2_LDSP_R_DAC_SW … #define CPCAP_BIT_A1_EAR_DAC_SW … /* Register 523 CPCAP_REG_RXEPOA --- RX External PGA to Output Amp Switches */ #define CPCAP_BIT_PGA_EXT_L_EN … #define CPCAP_BIT_PGA_EXT_R_EN … #define CPCAP_BIT_PGA_IN_L_SW … #define CPCAP_BIT_PGA_IN_R_SW … #define CPCAP_BIT_MONO_EXT1 … #define CPCAP_BIT_MONO_EXT0 … #define CPCAP_BIT_PGA_OUTR_USBDP_EXT_SW … #define CPCAP_BIT_PGA_OUTL_USBDN_EXT_SW … #define CPCAP_BIT_ALEFT_HS_EXT_SW … #define CPCAP_BIT_ARIGHT_HS_EXT_SW … #define CPCAP_BIT_A4_LINEOUT_L_EXT_SW … #define CPCAP_BIT_A4_LINEOUT_R_EXT_SW … #define CPCAP_BIT_A2_LDSP_L_EXT_SW … #define CPCAP_BIT_A2_LDSP_R_EXT_SW … #define CPCAP_BIT_A1_EAR_EXT_SW … /* Register 525 CPCAP_REG_A2LA --- SPK Amplifier and Clock Config for Headset */ #define CPCAP_BIT_NCP_CLK_SYNC … #define CPCAP_BIT_A2_CLK_SYNC … #define CPCAP_BIT_A2_FREE_RUN … #define CPCAP_BIT_A2_CLK2 … #define CPCAP_BIT_A2_CLK1 … #define CPCAP_BIT_A2_CLK0 … #define CPCAP_BIT_A2_CLK_IN … #define CPCAP_BIT_A2_CONFIG … #define SLEEP_ACTIVATE_POWER … #define CLOCK_TREE_RESET_TIME … /* constants for ST delay workaround */ #define STM_STDAC_ACTIVATE_RAMP_TIME … #define STM_STDAC_EN_TEST_PRE … #define STM_STDAC_EN_TEST_POST … #define STM_STDAC_EN_ST_TEST1_PRE … #define STM_STDAC_EN_ST_TEST1_POST … struct cpcap_reg_info { … }; static const struct cpcap_reg_info cpcap_default_regs[] = …; enum cpcap_dai { … }; struct cpcap_audio { … }; static int cpcap_st_workaround(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } /* Capture Gain Control: 0dB to 31dB in 1dB steps */ static const DECLARE_TLV_DB_SCALE(mic_gain_tlv, 0, 100, 0); /* Playback Gain Control: -33dB to 12dB in 3dB steps */ static const DECLARE_TLV_DB_SCALE(vol_tlv, -3300, 300, 0); static const struct snd_kcontrol_new cpcap_snd_controls[] = …; static const char * const cpcap_out_mux_texts[] = …; static const char * const cpcap_in_right_mux_texts[] = …; static const char * const cpcap_in_left_mux_texts[] = …; /* * input muxes use unusual register layout, so that we need to use custom * getter/setter methods */ static SOC_ENUM_SINGLE_EXT_DECL(cpcap_input_left_mux_enum, cpcap_in_left_mux_texts); static SOC_ENUM_SINGLE_EXT_DECL(cpcap_input_right_mux_enum, cpcap_in_right_mux_texts); /* * mux uses same bit in CPCAP_REG_RXCOA, CPCAP_REG_RXSDOA & CPCAP_REG_RXEPOA; * even though the register layout makes it look like a mixer, this is a mux. * Enabling multiple inputs will result in no audio being forwarded. */ static SOC_ENUM_SINGLE_DECL(cpcap_earpiece_mux_enum, 0, 0, cpcap_out_mux_texts); static SOC_ENUM_SINGLE_DECL(cpcap_spkr_r_mux_enum, 0, 1, cpcap_out_mux_texts); static SOC_ENUM_SINGLE_DECL(cpcap_spkr_l_mux_enum, 0, 2, cpcap_out_mux_texts); static SOC_ENUM_SINGLE_DECL(cpcap_line_r_mux_enum, 0, 3, cpcap_out_mux_texts); static SOC_ENUM_SINGLE_DECL(cpcap_line_l_mux_enum, 0, 4, cpcap_out_mux_texts); static SOC_ENUM_SINGLE_DECL(cpcap_hs_r_mux_enum, 0, 5, cpcap_out_mux_texts); static SOC_ENUM_SINGLE_DECL(cpcap_hs_l_mux_enum, 0, 6, cpcap_out_mux_texts); static SOC_ENUM_SINGLE_DECL(cpcap_emu_l_mux_enum, 0, 7, cpcap_out_mux_texts); static SOC_ENUM_SINGLE_DECL(cpcap_emu_r_mux_enum, 0, 8, cpcap_out_mux_texts); static int cpcap_output_mux_get_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int cpcap_output_mux_put_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int cpcap_input_right_mux_get_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int cpcap_input_right_mux_put_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int cpcap_input_left_mux_get_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int cpcap_input_left_mux_put_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static const struct snd_kcontrol_new cpcap_input_left_mux = …; static const struct snd_kcontrol_new cpcap_input_right_mux = …; static const struct snd_kcontrol_new cpcap_emu_left_mux = …; static const struct snd_kcontrol_new cpcap_emu_right_mux = …; static const struct snd_kcontrol_new cpcap_hs_left_mux = …; static const struct snd_kcontrol_new cpcap_hs_right_mux = …; static const struct snd_kcontrol_new cpcap_line_left_mux = …; static const struct snd_kcontrol_new cpcap_line_right_mux = …; static const struct snd_kcontrol_new cpcap_speaker_left_mux = …; static const struct snd_kcontrol_new cpcap_speaker_right_mux = …; static const struct snd_kcontrol_new cpcap_earpiece_mux = …; static const struct snd_kcontrol_new cpcap_hifi_mono_mixer_controls[] = …; static const struct snd_kcontrol_new cpcap_ext_mono_mixer_controls[] = …; static const struct snd_kcontrol_new cpcap_extr_mute_control = …; static const struct snd_kcontrol_new cpcap_extl_mute_control = …; static const struct snd_kcontrol_new cpcap_voice_loopback = …; static const struct snd_soc_dapm_widget cpcap_dapm_widgets[] = …; static const struct snd_soc_dapm_route intercon[] = …; static int cpcap_set_sysclk(struct cpcap_audio *cpcap, enum cpcap_dai dai, int clk_id, int freq) { … } static int cpcap_set_samprate(struct cpcap_audio *cpcap, enum cpcap_dai dai, int samplerate) { … } static int cpcap_hifi_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int cpcap_hifi_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { … } static int cpcap_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { … } static int cpcap_hifi_set_mute(struct snd_soc_dai *dai, int mute, int direction) { … } static const struct snd_soc_dai_ops cpcap_dai_hifi_ops = …; static int cpcap_voice_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int cpcap_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { … } static int cpcap_voice_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { … } /* * Configure codec for voice call if requested. * * We can configure most with snd_soc_dai_set_sysclk(), snd_soc_dai_set_fmt() * and snd_soc_dai_set_tdm_slot(). This function configures the rest of the * cpcap related hardware as CPU is not involved in the voice call. */ static int cpcap_voice_call(struct cpcap_audio *cpcap, struct snd_soc_dai *dai, bool voice_call) { … } static int cpcap_voice_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) { … } static int cpcap_voice_set_mute(struct snd_soc_dai *dai, int mute, int direction) { struct snd_soc_component *component = dai->component; struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component); static const u16 reg = CPCAP_REG_RXCOA; static const u16 mask = BIT(CPCAP_BIT_CDC_SW); u16 val; if (mute) val = 0; else val = BIT(CPCAP_BIT_CDC_SW); dev_dbg(component->dev, "Voice mute: %d", mute); return regmap_update_bits(cpcap->regmap, reg, mask, val); }; static const struct snd_soc_dai_ops cpcap_dai_voice_ops = …; static struct snd_soc_dai_driver cpcap_dai[] = …; static int cpcap_dai_mux(struct cpcap_audio *cpcap, bool swap_dai_configuration) { … } static int cpcap_audio_reset(struct snd_soc_component *component, bool swap_dai_configuration) { … } static int cpcap_soc_probe(struct snd_soc_component *component) { … } static struct snd_soc_component_driver soc_codec_dev_cpcap = …; static int cpcap_codec_probe(struct platform_device *pdev) { … } static struct platform_driver cpcap_codec_driver = …; module_platform_driver(…) …; MODULE_ALIAS(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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