// SPDX-License-Identifier: GPL-2.0 // // ak4613.c -- Asahi Kasei ALSA Soc Audio driver // // Copyright (C) 2015 Renesas Electronics Corporation // Kuninori Morimoto <[email protected]> // // Based on ak4642.c by Kuninori Morimoto // Based on wm8731.c by Richard Purdie // Based on ak4535.c by Richard Purdie // Based on wm8753.c by Liam Girdwood /* * +-------+ * |AK4613 | * SDTO1 <-| | * | | * SDTI1 ->| | * SDTI2 ->| | * SDTI3 ->| | * +-------+ * * +---+ * clk | |___________________________________________... * * [TDM512] * SDTO1 [L1][R1][L2][R2] * SDTI1 [L1][R1][L2][R2][L3][R3][L4][R4][L5][R5][L6][R6] * * [TDM256] * SDTO1 [L1][R1][L2][R2] * SDTI1 [L1][R1][L2][R2][L3][R3][L4][R4] * SDTI2 [L5][R5][L6][R6] * * [TDM128] * SDTO1 [L1][R1][L2][R2] * SDTI1 [L1][R1][L2][R2] * SDTI2 [L3][R3][L4][R4] * SDTI3 [L5][R5][L6][R6] * * [STEREO] * Playback 2ch : SDTI1 * Capture 2ch : SDTO1 * * [TDM512] * Playback 12ch : SDTI1 * Capture 4ch : SDTO1 * * [TDM256] * Playback 12ch : SDTI1 + SDTI2 * Playback 8ch : SDTI1 * Capture 4ch : SDTO1 * * [TDM128] * Playback 12ch : SDTI1 + SDTI2 + SDTI3 * Playback 8ch : SDTI1 + SDTI2 * Playback 4ch : SDTI1 * Capture 4ch : SDTO1 * * * !!! NOTE !!! * * Renesas is the only user of ak4613 on upstream so far, * but the chip connection is like below. * Thus, Renesas can't test all connection case. * Tested TDM is very limited. * * +-----+ +-----------+ * | SoC | | AK4613 | * | |<-----|SDTO1 IN1|<-- Mic * | | | IN2| * | | | | * | |----->|SDTI1 OUT1|--> Headphone * +-----+ |SDTI2 OUT2| * |SDTI3 OUT3| * | OUT4| * | OUT5| * | OUT6| * +-----------+ * * Renesas SoC can handle [2, 6,8] channels. * Ak4613 can handle [2,4, 8,12] channels. * * Because of above HW connection and available channels number, * Renesas could test are ... * * [STEREO] Playback 2ch : SDTI1 * Capture 2ch : SDTO1 * [TDM256] Playback 8ch : SDTI1 (*) * * (*) it used 8ch data between SoC <-> AK4613 on TDM256 mode, * but could confirm is only first 2ch because only 1 * Headphone is connected. * * see * AK4613_ENABLE_TDM_TEST */ #include <linux/clk.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/slab.h> #include <linux/of.h> #include <linux/of_graph.h> #include <linux/module.h> #include <linux/regmap.h> #include <sound/soc.h> #include <sound/pcm_params.h> #include <sound/tlv.h> #define PW_MGMT1 … #define PW_MGMT2 … #define PW_MGMT3 … #define CTRL1 … #define CTRL2 … #define DEMP1 … #define DEMP2 … #define OFD … #define ZRD … #define ICTRL … #define OCTRL … #define LOUT1 … #define ROUT1 … #define LOUT2 … #define ROUT2 … #define LOUT3 … #define ROUT3 … #define LOUT4 … #define ROUT4 … #define LOUT5 … #define ROUT5 … #define LOUT6 … #define ROUT6 … /* PW_MGMT1 */ #define RSTN … #define PMDAC … #define PMADC … #define PMVR … /* PW_MGMT2 */ #define PMAD_ALL … /* PW_MGMT3 */ #define PMDA_ALL … /* CTRL1 */ #define DIF0 … #define DIF1 … #define DIF2 … #define TDM0 … #define TDM1 … #define NO_FMT … #define FMT_MASK … /* CTRL2 */ #define DFS_MASK … #define DFS_NORMAL_SPEED … #define DFS_DOUBLE_SPEED … #define DFS_QUAD_SPEED … /* ICTRL */ #define ICTRL_MASK … /* OCTRL */ #define OCTRL_MASK … /* * configs * * 0x000000BA * * B : AK4613_CONFIG_SDTI_x * A : AK4613_CONFIG_MODE_x */ #define AK4613_CONFIG_SET(priv, x) … #define AK4613_CONFIG_GET(priv, x) … /* * AK4613_CONFIG_SDTI_x * * It indicates how many SDTIx is connected. */ #define AK4613_CONFIG_SDTI_MASK … #define AK4613_CONFIG_SDTI(x) … #define AK4613_CONFIG_SDTI_set(priv, x) … #define AK4613_CONFIG_SDTI_get(priv) … /* * AK4613_CONFIG_MODE_x * * Same as Ctrl1 :: TDM1/TDM0 * No shift is requested * see * AK4613_CTRL1_TO_MODE() * Table 11/12/13/14 */ #define AK4613_CONFIG_MODE_MASK … #define AK4613_CONFIG_MODE_STEREO … #define AK4613_CONFIG_MODE_TDM512 … #define AK4613_CONFIG_MODE_TDM256 … #define AK4613_CONFIG_MODE_TDM128 … /* * !!!! FIXME !!!! * * Because of testable HW limitation, TDM256 8ch TDM was only tested. * This driver uses AK4613_ENABLE_TDM_TEST instead of new DT property so far. * Don't hesitate to update driver, you don't need to care compatible * with Renesas. * * #define AK4613_ENABLE_TDM_TEST */ struct ak4613_interface { … }; struct ak4613_priv { … }; /* * Playback Volume * * max : 0x00 : 0 dB * ( 0.5 dB step ) * min : 0xFE : -127.0 dB * mute: 0xFF */ static const DECLARE_TLV_DB_SCALE(out_tlv, -12750, 50, 1); static const struct snd_kcontrol_new ak4613_snd_controls[] = …; static const struct reg_default ak4613_reg[] = …; /* * CTRL1 register * see * Table 11/12/13/14 */ #define AUDIO_IFACE(_dif, _width, _fmt) … static const struct ak4613_interface ak4613_iface[] = …; #define AK4613_CTRL1_TO_MODE(priv) … static const struct regmap_config ak4613_regmap_cfg = …; static const struct of_device_id ak4613_of_match[] = …; MODULE_DEVICE_TABLE(of, ak4613_of_match); static const struct i2c_device_id ak4613_i2c_id[] = …; MODULE_DEVICE_TABLE(i2c, ak4613_i2c_id); static const struct snd_soc_dapm_widget ak4613_dapm_widgets[] = …; static const struct snd_soc_dapm_route ak4613_intercon[] = …; static void ak4613_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } static void ak4613_hw_constraints(struct ak4613_priv *priv, struct snd_pcm_substream *substream) { … } static int ak4613_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } static int ak4613_dai_set_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { … } static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int format) { … } static int ak4613_dai_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int ak4613_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { … } static void ak4613_dummy_write(struct work_struct *work) { … } static int ak4613_dai_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { … } /* * Select below from Sound Card, not Auto * SND_SOC_DAIFMT_CBC_CFC * SND_SOC_DAIFMT_CBP_CFP */ static const u64 ak4613_dai_formats = …; static const struct snd_soc_dai_ops ak4613_dai_ops = …; #define AK4613_PCM_RATE … #define AK4613_PCM_FMTBIT … static struct snd_soc_dai_driver ak4613_dai = …; static int ak4613_suspend(struct snd_soc_component *component) { … } static int ak4613_resume(struct snd_soc_component *component) { … } static const struct snd_soc_component_driver soc_component_dev_ak4613 = …; static void ak4613_parse_of(struct ak4613_priv *priv, struct device *dev) { … } static int ak4613_i2c_probe(struct i2c_client *i2c) { … } static struct i2c_driver ak4613_i2c_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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