diff options
| author | Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com> | 2018-02-14 16:21:06 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-02-16 14:55:35 +0300 |
| commit | 08660086eff9e9e69246a65ee48aba5c3901bf5e (patch) | |
| tree | dc61e670593acc49a3223df7c59ac909e52a4ff5 /sound/soc/codecs/ak4458.h | |
| parent | 7928b2cbe55b2a410a0f5c1f154610059c57b1b2 (diff) | |
| download | linux-08660086eff9e9e69246a65ee48aba5c3901bf5e.tar.xz | |
ASoC: ak4458: Add support for AK4458 DAC driver
The AK4458 is a 32-bit 8ch Premium DAC that corresponds
to a 768kHz PCM input and an 11.2MHz DSD input at maximum.
It supports I2S, DSD and TDM modes with 24 or 32 bit MSB
or 16, 24, 32 LSB formats. Its datasheet is available here:
https://www.akm.com/akm/en/file/datasheet/AK4458VN.pdf
Signed-off-by: Junichi Wakasugi <wakasugi.jb@om.asahi-kasei.co.jp>
Signed-off-by: Mihai Serban <mihai.serban@nxp.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/ak4458.h')
| -rw-r--r-- | sound/soc/codecs/ak4458.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/sound/soc/codecs/ak4458.h b/sound/soc/codecs/ak4458.h new file mode 100644 index 000000000000..16d9d22a413a --- /dev/null +++ b/sound/soc/codecs/ak4458.h @@ -0,0 +1,86 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Audio driver for AK4458 + * + * Copyright (C) 2016 Asahi Kasei Microdevices Corporation + * Copyright 2018 NXP + */ + +#ifndef _AK4458_H +#define _AK4458_H + +#include <linux/regmap.h> + +/* Settings */ + +#define AK4458_00_CONTROL1 0x00 +#define AK4458_01_CONTROL2 0x01 +#define AK4458_02_CONTROL3 0x02 +#define AK4458_03_LCHATT 0x03 +#define AK4458_04_RCHATT 0x04 +#define AK4458_05_CONTROL4 0x05 +#define AK4458_06_DSD1 0x06 +#define AK4458_07_CONTROL5 0x07 +#define AK4458_08_SOUND_CONTROL 0x08 +#define AK4458_09_DSD2 0x09 +#define AK4458_0A_CONTROL6 0x0A +#define AK4458_0B_CONTROL7 0x0B +#define AK4458_0C_CONTROL8 0x0C +#define AK4458_0D_CONTROL9 0x0D +#define AK4458_0E_CONTROL10 0x0E +#define AK4458_0F_L2CHATT 0x0F +#define AK4458_10_R2CHATT 0x10 +#define AK4458_11_L3CHATT 0x11 +#define AK4458_12_R3CHATT 0x12 +#define AK4458_13_L4CHATT 0x13 +#define AK4458_14_R4CHATT 0x14 + +/* Bitfield Definitions */ + +/* AK4458_00_CONTROL1 (0x00) Fields + * Addr Register Name D7 D6 D5 D4 D3 D2 D1 D0 + * 00H Control 1 ACKS 0 0 0 DIF2 DIF1 DIF0 RSTN + */ + +/* Digital Filter (SD, SLOW, SSLOW) */ +#define AK4458_SD_MASK GENMASK(5, 5) +#define AK4458_SLOW_MASK GENMASK(0, 0) +#define AK4458_SSLOW_MASK GENMASK(0, 0) + +/* DIF2 1 0 + * x 1 0 MSB justified Figure 3 (default) + * x 1 1 I2S Compliment Figure 4 + */ +#define AK4458_DIF_SHIFT 1 +#define AK4458_DIF_MASK GENMASK(3, 1) + +#define AK4458_DIF_16BIT_LSB (0 << 1) +#define AK4458_DIF_24BIT_I2S (3 << 1) +#define AK4458_DIF_32BIT_LSB (5 << 1) +#define AK4458_DIF_32BIT_MSB (6 << 1) +#define AK4458_DIF_32BIT_I2S (7 << 1) + +/* AK4458_00_CONTROL1 (0x00) D0 bit */ +#define AK4458_RSTN_MASK GENMASK(0, 0) +#define AK4458_RSTN (0x1 << 0) + +/* AK4458_0A_CONTROL6 Mode bits */ +#define AK4458_MODE_SHIFT 6 +#define AK4458_MODE_MASK GENMASK(7, 6) +#define AK4458_MODE_NORMAL (0 << AK4458_MODE_SHIFT) +#define AK4458_MODE_TDM128 (1 << AK4458_MODE_SHIFT) +#define AK4458_MODE_TDM256 (2 << AK4458_MODE_SHIFT) +#define AK4458_MODE_TDM512 (3 << AK4458_MODE_SHIFT) + +/* DAC Digital attenuator transition time setting + * Table 19 + * Mode ATS1 ATS2 ATT speed + * 0 0 0 4080/fs + * 1 0 1 2040/fs + * 2 1 0 510/fs + * 3 1 1 255/fs + * */ +#define AK4458_ATS_SHIFT 6 +#define AK4458_ATS_MASK GENMASK(7, 6) + +#endif /* _AK4458_H */ |