--- Begin Message ---
- To: <broonie@xxxxxxxxxx>, <pierre-louis.bossart@xxxxxxxxxxxxxxx>
- Subject: [PATCH v3 8/8] ASoC: cs35l56: Add driver for Cirrus Logic CS35L56
- From: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>
- Date: Mon, 20 Mar 2023 11:22:45 +0000
- Cc: peter.ujfalusi@xxxxxxxxxxxxxxx, yung-chuan.liao@xxxxxxxxxxxxxxx, alsa-devel@xxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, patches@xxxxxxxxxxxxxxxxxxxxx, Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>
- In-reply-to: <20230320112245.115720-1-rf@opensource.cirrus.com>
- References: <20230320112245.115720-1-rf@opensource.cirrus.com>
The CS35L56 combines a high-performance mono audio amplifier, Class-H tracking inductive boost converter, Halo Core(TM) DSP and a DC-DC boost converter supporting Class-H tracking. Supported control interfaces are I2C, SPI or SoundWire. Supported audio interfaces are I2S/TDM or SoundWire. Most chip functionality is controlled by on-board ROM firmware that is always running. The driver must apply patch/tune to the firmware before using the CS35L56. Signed-off-by: Simon Trimmer <simont@xxxxxxxxxxxxxxxxxxxxx> Signed-off-by: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx> --- MAINTAINERS | 1 + include/sound/cs35l56.h | 266 ++++++ sound/soc/codecs/Kconfig | 40 + sound/soc/codecs/Makefile | 10 + sound/soc/codecs/cs35l56-i2c.c | 83 ++ sound/soc/codecs/cs35l56-sdw.c | 528 +++++++++++ sound/soc/codecs/cs35l56-shared.c | 390 ++++++++ sound/soc/codecs/cs35l56-spi.c | 81 ++ sound/soc/codecs/cs35l56.c | 1461 +++++++++++++++++++++++++++++ sound/soc/codecs/cs35l56.h | 77 ++ 10 files changed, 2937 insertions(+) create mode 100644 include/sound/cs35l56.h create mode 100644 sound/soc/codecs/cs35l56-i2c.c create mode 100644 sound/soc/codecs/cs35l56-sdw.c create mode 100644 sound/soc/codecs/cs35l56-shared.c create mode 100644 sound/soc/codecs/cs35l56-spi.c create mode 100644 sound/soc/codecs/cs35l56.c create mode 100644 sound/soc/codecs/cs35l56.h diff --git a/MAINTAINERS b/MAINTAINERS index 02fe90adf0af..e52938f962b5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4905,6 +4905,7 @@ L: patches@xxxxxxxxxxxxxxxxxxxxx S: Maintained F: Documentation/devicetree/bindings/sound/cirrus,cs* F: include/dt-bindings/sound/cs* +F: include/sound/cs* F: sound/pci/hda/cs* F: sound/pci/hda/hda_cs_dsp_ctl.* F: sound/soc/codecs/cs* diff --git a/include/sound/cs35l56.h b/include/sound/cs35l56.h new file mode 100644 index 000000000000..5f8ea2dfaa21 --- /dev/null +++ b/include/sound/cs35l56.h @@ -0,0 +1,266 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Common definitions for Cirrus Logic CS35L56 smart amp + * + * Copyright (C) 2023 Cirrus Logic, Inc. and + * Cirrus Logic International Semiconductor Ltd. + */ + +#ifndef __CS35L56_H +#define __CS35L56_H + +#include <linux/firmware/cirrus/cs_dsp.h> +#include <linux/regulator/consumer.h> +#include <linux/regmap.h> + +#define CS35L56_DEVID 0x0000000 +#define CS35L56_REVID 0x0000004 +#define CS35L56_RELID 0x000000C +#define CS35L56_OTPID 0x0000010 +#define CS35L56_SFT_RESET 0x0000020 +#define CS35L56_GLOBAL_ENABLES 0x0002014 +#define CS35L56_BLOCK_ENABLES 0x0002018 +#define CS35L56_BLOCK_ENABLES2 0x000201C +#define CS35L56_REFCLK_INPUT 0x0002C04 +#define CS35L56_GLOBAL_SAMPLE_RATE 0x0002C0C +#define CS35L56_ASP1_ENABLES1 0x0004800 +#define CS35L56_ASP1_CONTROL1 0x0004804 +#define CS35L56_ASP1_CONTROL2 0x0004808 +#define CS35L56_ASP1_CONTROL3 0x000480C +#define CS35L56_ASP1_FRAME_CONTROL1 0x0004810 +#define CS35L56_ASP1_FRAME_CONTROL5 0x0004820 +#define CS35L56_ASP1_DATA_CONTROL1 0x0004830 +#define CS35L56_ASP1_DATA_CONTROL5 0x0004840 +#define CS35L56_DACPCM1_INPUT 0x0004C00 +#define CS35L56_DACPCM2_INPUT 0x0004C08 +#define CS35L56_ASP1TX1_INPUT 0x0004C20 +#define CS35L56_ASP1TX2_INPUT 0x0004C24 +#define CS35L56_ASP1TX3_INPUT 0x0004C28 +#define CS35L56_ASP1TX4_INPUT 0x0004C2C +#define CS35L56_DSP1RX1_INPUT 0x0004C40 +#define CS35L56_DSP1RX2_INPUT 0x0004C44 +#define CS35L56_SWIRE_DP3_CH1_INPUT 0x0004C70 +#define CS35L56_SWIRE_DP3_CH2_INPUT 0x0004C74 +#define CS35L56_SWIRE_DP3_CH3_INPUT 0x0004C78 +#define CS35L56_SWIRE_DP3_CH4_INPUT 0x0004C7C +#define CS35L56_SWIRE_DP3_CH5_INPUT 0x0004C80 +#define CS35L56_SWIRE_DP3_CH6_INPUT 0x0004C84 +#define CS35L56_IRQ1_CFG 0x000E000 +#define CS35L56_IRQ1_STATUS 0x000E004 +#define CS35L56_IRQ1_EINT_1 0x000E010 +#define CS35L56_IRQ1_EINT_2 0x000E014 +#define CS35L56_IRQ1_EINT_4 0x000E01C +#define CS35L56_IRQ1_EINT_8 0x000E02C +#define CS35L56_IRQ1_EINT_18 0x000E054 +#define CS35L56_IRQ1_EINT_20 0x000E05C +#define CS35L56_IRQ1_MASK_1 0x000E090 +#define CS35L56_IRQ1_MASK_2 0x000E094 +#define CS35L56_IRQ1_MASK_4 0x000E09C +#define CS35L56_IRQ1_MASK_8 0x000E0AC +#define CS35L56_IRQ1_MASK_18 0x000E0D4 +#define CS35L56_IRQ1_MASK_20 0x000E0DC +#define CS35L56_DSP_VIRTUAL1_MBOX_1 0x0011020 +#define CS35L56_DSP_VIRTUAL1_MBOX_2 0x0011024 +#define CS35L56_DSP_VIRTUAL1_MBOX_3 0x0011028 +#define CS35L56_DSP_VIRTUAL1_MBOX_4 0x001102C +#define CS35L56_DSP_VIRTUAL1_MBOX_5 0x0011030 +#define CS35L56_DSP_VIRTUAL1_MBOX_6 0x0011034 +#define CS35L56_DSP_VIRTUAL1_MBOX_7 0x0011038 +#define CS35L56_DSP_VIRTUAL1_MBOX_8 0x001103C +#define CS35L56_DSP_RESTRICT_STS1 0x00190F0 +#define CS35L56_DSP1_XMEM_PACKED_0 0x2000000 +#define CS35L56_DSP1_XMEM_PACKED_6143 0x2005FFC +#define CS35L56_DSP1_XMEM_UNPACKED32_0 0x2400000 +#define CS35L56_DSP1_XMEM_UNPACKED32_4095 0x2403FFC +#define CS35L56_DSP1_SYS_INFO_ID 0x25E0000 +#define CS35L56_DSP1_SYS_INFO_END 0x25E004C +#define CS35L56_DSP1_AHBM_WINDOW_DEBUG_0 0x25E2040 +#define CS35L56_DSP1_AHBM_WINDOW_DEBUG_1 0x25E2044 +#define CS35L56_DSP1_XMEM_UNPACKED24_0 0x2800000 +#define CS35L56_DSP1_HALO_STATE_A1 0x2801E58 +#define CS35L56_DSP1_HALO_STATE 0x28021E0 +#define CS35L56_DSP1_PM_CUR_STATE_A1 0x2804000 +#define CS35L56_DSP1_PM_CUR_STATE 0x2804308 +#define CS35L56_DSP1_XMEM_UNPACKED24_8191 0x2807FFC +#define CS35L56_DSP1_CORE_BASE 0x2B80000 +#define CS35L56_DSP1_SCRATCH1 0x2B805C0 +#define CS35L56_DSP1_SCRATCH2 0x2B805C8 +#define CS35L56_DSP1_SCRATCH3 0x2B805D0 +#define CS35L56_DSP1_SCRATCH4 0x2B805D8 +#define CS35L56_DSP1_YMEM_PACKED_0 0x2C00000 +#define CS35L56_DSP1_YMEM_PACKED_4604 0x2C047F0 +#define CS35L56_DSP1_YMEM_UNPACKED32_0 0x3000000 +#define CS35L56_DSP1_YMEM_UNPACKED32_3070 0x3002FF8 +#define CS35L56_DSP1_YMEM_UNPACKED24_0 0x3400000 +#define CS35L56_MAIN_RENDER_USER_MUTE 0x3400024 +#define CS35L56_MAIN_RENDER_USER_VOLUME 0x340002C +#define CS35L56_MAIN_POSTURE_NUMBER 0x3400094 +#define CS35L56_TRANSDUCER_ACTUAL_PS 0x3400150 +#define CS35L56_DSP1_YMEM_UNPACKED24_6141 0x3405FF4 +#define CS35L56_DSP1_PMEM_0 0x3800000 +#define CS35L56_DSP1_PMEM_5114 0x3804FE8 + +/* DEVID */ +#define CS35L56_DEVID_MASK 0x00FFFFFF + +/* REVID */ +#define CS35L56_AREVID_MASK 0x000000F0 +#define CS35L56_MTLREVID_MASK 0x0000000F +#define CS35L56_REVID_B0 0x000000B0 + +/* ASP_ENABLES1 */ +#define CS35L56_ASP_RX2_EN_SHIFT 17 +#define CS35L56_ASP_RX1_EN_SHIFT 16 +#define CS35L56_ASP_TX4_EN_SHIFT 3 +#define CS35L56_ASP_TX3_EN_SHIFT 2 +#define CS35L56_ASP_TX2_EN_SHIFT 1 +#define CS35L56_ASP_TX1_EN_SHIFT 0 + +/* ASP_CONTROL1 */ +#define CS35L56_ASP_BCLK_FREQ_MASK 0x0000003F +#define CS35L56_ASP_BCLK_FREQ_SHIFT 0 + +/* ASP_CONTROL2 */ +#define CS35L56_ASP_RX_WIDTH_MASK 0xFF000000 +#define CS35L56_ASP_RX_WIDTH_SHIFT 24 +#define CS35L56_ASP_TX_WIDTH_MASK 0x00FF0000 +#define CS35L56_ASP_TX_WIDTH_SHIFT 16 +#define CS35L56_ASP_FMT_MASK 0x00000700 +#define CS35L56_ASP_FMT_SHIFT 8 +#define CS35L56_ASP_BCLK_INV_MASK 0x00000040 +#define CS35L56_ASP_FSYNC_INV_MASK 0x00000004 + +/* ASP_CONTROL3 */ +#define CS35L56_ASP1_DOUT_HIZ_CTRL_MASK 0x00000003 + +/* ASP_DATA_CONTROL1 */ +#define CS35L56_ASP_TX_WL_MASK 0x0000003F + +/* ASP_DATA_CONTROL5 */ +#define CS35L56_ASP_RX_WL_MASK 0x0000003F + +/* ASPTXn_INPUT */ +#define CS35L56_ASP_TXn_SRC_MASK 0x0000007F + +/* SWIRETX[1..7]_SRC SDWTXn INPUT */ +#define CS35L56_SWIRETXn_SRC_MASK 0x0000007F + +/* IRQ1_STATUS */ +#define CS35L56_IRQ1_STS_MASK 0x00000001 + +/* IRQ1_EINT_1 */ +#define CS35L56_AMP_SHORT_ERR_EINT1_MASK 0x80000000 + +/* IRQ1_EINT_2 */ +#define CS35L56_DSP_VIRTUAL2_MBOX_WR_EINT1_MASK 0x00200000 + +/* IRQ1_EINT_4 */ +#define CS35L56_OTP_BOOT_DONE_MASK 0x00000002 + +/* IRQ1_EINT_8 */ +#define CS35L56_TEMP_ERR_EINT1_MASK 0x80000000 + +/* Mixer input sources */ +#define CS35L56_INPUT_SRC_NONE 0x00 +#define CS35L56_INPUT_SRC_ASP1RX1 0x08 +#define CS35L56_INPUT_SRC_ASP1RX2 0x09 +#define CS35L56_INPUT_SRC_VMON 0x18 +#define CS35L56_INPUT_SRC_IMON 0x19 +#define CS35L56_INPUT_SRC_ERR_VOL 0x20 +#define CS35L56_INPUT_SRC_CLASSH 0x21 +#define CS35L56_INPUT_SRC_VDDBMON 0x28 +#define CS35L56_INPUT_SRC_VBSTMON 0x29 +#define CS35L56_INPUT_SRC_DSP1TX1 0x32 +#define CS35L56_INPUT_SRC_DSP1TX2 0x33 +#define CS35L56_INPUT_SRC_DSP1TX3 0x34 +#define CS35L56_INPUT_SRC_DSP1TX4 0x35 +#define CS35L56_INPUT_SRC_DSP1TX5 0x36 +#define CS35L56_INPUT_SRC_DSP1TX6 0x37 +#define CS35L56_INPUT_SRC_DSP1TX7 0x38 +#define CS35L56_INPUT_SRC_DSP1TX8 0x39 +#define CS35L56_INPUT_SRC_TEMPMON 0x3A +#define CS35L56_INPUT_SRC_INTERPOLATOR 0x40 +#define CS35L56_INPUT_SRC_SWIRE_RX1 0x44 +#define CS35L56_INPUT_SRC_SWIRE_RX2 0x45 +#define CS35L56_INPUT_SRC_SWIRE_RX3 0x46 +#define CS35L56_INPUT_MASK 0x7F + +#define CS35L56_NUM_INPUT_SRC 22 + +/* ASP formats */ +#define CS35L56_ASP_FMT_DSP_A 0 +#define CS35L56_ASP_FMT_I2S 2 + +/* ASP HiZ modes */ +#define CS35L56_ASP_UNUSED_HIZ_OFF_HIZ 3 + +/* MAIN_RENDER_ACTUAL_PS */ +#define CS35L56_PS0 0 +#define CS35L56_PS3 3 + +/* CS35L56_DSP_RESTRICT_STS1 */ +#define CS35L56_RESTRICTED_MASK 0x7 + +/* CS35L56_MAIN_RENDER_USER_MUTE */ +#define CS35L56_MAIN_RENDER_USER_MUTE_MASK 1 + +/* CS35L56_MAIN_RENDER_USER_VOLUME */ +#define CS35L56_MAIN_RENDER_USER_VOLUME_MIN -400 +#define CS35L56_MAIN_RENDER_USER_VOLUME_MAX 400 +#define CS35L56_MAIN_RENDER_USER_VOLUME_MASK 0x0000FFC0 +#define CS35L56_MAIN_RENDER_USER_VOLUME_SHIFT 6 +#define CS35L56_MAIN_RENDER_USER_VOLUME_SIGNBIT 9 + +/* CS35L56_MAIN_POSTURE_NUMBER */ +#define CS35L56_MAIN_POSTURE_MIN 0 +#define CS35L56_MAIN_POSTURE_MAX 255 +#define CS35L56_MAIN_POSTURE_MASK CS35L56_MAIN_POSTURE_MAX + +/* Software Values */ +#define CS35L56_HALO_STATE_SHUTDOWN 1 +#define CS35L56_HALO_STATE_BOOT_DONE 2 + +#define CS35L56_MBOX_CMD_AUDIO_PLAY 0x0B000001 +#define CS35L56_MBOX_CMD_AUDIO_PAUSE 0x0B000002 +#define CS35L56_MBOX_CMD_HIBERNATE_NOW 0x02000001 +#define CS35L56_MBOX_CMD_WAKEUP 0x02000002 +#define CS35L56_MBOX_CMD_PREVENT_AUTO_HIBERNATE 0x02000003 +#define CS35L56_MBOX_CMD_ALLOW_AUTO_HIBERNATE 0x02000004 +#define CS35L56_MBOX_CMD_SHUTDOWN 0x02000005 +#define CS35L56_MBOX_CMD_SYSTEM_RESET 0x02000007 + +#define CS35L56_MBOX_TIMEOUT_US 5000 +#define CS35L56_MBOX_POLL_US 250 + +#define CS35L56_PS0_POLL_US 500 +#define CS35L56_PS0_TIMEOUT_US 50000 +#define CS35L56_PS3_POLL_US 500 +#define CS35L56_PS3_TIMEOUT_US 300000 + +#define CS35L56_CONTROL_PORT_READY_US 2200 +#define CS35L56_HALO_STATE_POLL_US 1000 +#define CS35L56_HALO_STATE_TIMEOUT_US 50000 +#define CS35L56_HIBERNATE_WAKE_POLL_US 500 +#define CS35L56_HIBERNATE_WAKE_TIMEOUT_US 5000 +#define CS35L56_RESET_PULSE_MIN_US 1100 + +#define CS35L56_SDW1_PLAYBACK_PORT 1 +#define CS35L56_SDW1_CAPTURE_PORT 3 + +#define CS35L56_NUM_BULK_SUPPLIES 3 +#define CS35L56_NUM_DSP_REGIONS 5 + +extern struct regmap_config cs35l56_regmap_i2c; +extern struct regmap_config cs35l56_regmap_spi; +extern struct regmap_config cs35l56_regmap_sdw; + +extern const struct cs_dsp_region cs35l56_dsp1_regions[CS35L56_NUM_DSP_REGIONS]; +extern const char * const cs35l56_tx_input_texts[CS35L56_NUM_INPUT_SRC]; +extern const unsigned int cs35l56_tx_input_values[CS35L56_NUM_INPUT_SRC]; + +void cs35l56_patch(struct device *dev, struct regmap *regmap, u8 revid); +void cs35l56_reread_firmware_registers(struct device *dev, struct regmap *regmap); +int cs35l56_get_bclk_freq_id(unsigned int freq); +void cs35l56_fill_supply_names(struct regulator_bulk_data *data); + +#endif /* ifndef __CS35L56_H */ diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 07747565c3b5..c9fb09cf8e6b 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -68,6 +68,9 @@ config SND_SOC_ALL_CODECS imply SND_SOC_CS35L41_I2C imply SND_SOC_CS35L45_I2C imply SND_SOC_CS35L45_SPI + imply SND_SOC_CS35L56_I2C + imply SND_SOC_CS35L56_SPI + imply SND_SOC_CS35L56_SDW imply SND_SOC_CS42L42 imply SND_SOC_CS42L42_SDW imply SND_SOC_CS42L51_I2C @@ -364,6 +367,7 @@ config SND_SOC_WM_ADSP default y if SND_SOC_WM2200=y default y if SND_SOC_CS35L41_SPI=y default y if SND_SOC_CS35L41_I2C=y + default y if SND_SOC_CS35L56=y default m if SND_SOC_MADERA=m default m if SND_SOC_CS47L24=m default m if SND_SOC_WM5102=m @@ -371,6 +375,7 @@ config SND_SOC_WM_ADSP default m if SND_SOC_WM2200=m default m if SND_SOC_CS35L41_SPI=m default m if SND_SOC_CS35L41_I2C=m + default m if SND_SOC_CS35L56=m config SND_SOC_AB8500_CODEC tristate @@ -711,6 +716,41 @@ config SND_SOC_CS35L45_I2C Enable support for Cirrus Logic CS35L45 smart speaker amplifier with I2C control. +config SND_SOC_CS35L56 + tristate + +config SND_SOC_CS35L56_SHARED + tristate + +config SND_SOC_CS35L56_I2C + tristate "Cirrus Logic CS35L56 CODEC (I2C)" + depends on I2C + depends on SOUNDWIRE || !SOUNDWIRE + select REGMAP_I2C + select SND_SOC_CS35L56 + select SND_SOC_CS35L56_SHARED + help + Enable support for Cirrus Logic CS35L56 boosted amplifier with I2C control + +config SND_SOC_CS35L56_SPI + tristate "Cirrus Logic CS35L56 CODEC (SPI)" + depends on SPI_MASTER + depends on SOUNDWIRE || !SOUNDWIRE + select REGMAP_SPI + select SND_SOC_CS35L56 + select SND_SOC_CS35L56_SHARED + help + Enable support for Cirrus Logic CS35L56 boosted amplifier with SPI control + +config SND_SOC_CS35L56_SDW + tristate "Cirrus Logic CS35L56 CODEC (SDW)" + depends on SOUNDWIRE + select REGMAP + select SND_SOC_CS35L56 + select SND_SOC_CS35L56_SHARED + help + Enable support for Cirrus Logic CS35L56 boosted amplifier with SoundWire control + config SND_SOC_CS42L42_CORE tristate diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index f1ca18f7946c..25ebce58a0ba 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -66,6 +66,11 @@ snd-soc-cs35l41-i2c-objs := cs35l41-i2c.o snd-soc-cs35l45-objs := cs35l45.o cs35l45-tables.o snd-soc-cs35l45-spi-objs := cs35l45-spi.o snd-soc-cs35l45-i2c-objs := cs35l45-i2c.o +snd-soc-cs35l56-objs := cs35l56.o +snd-soc-cs35l56-shared-objs := cs35l56-shared.o +snd-soc-cs35l56-i2c-objs := cs35l56-i2c.o +snd-soc-cs35l56-spi-objs := cs35l56-spi.o +snd-soc-cs35l56-sdw-objs := cs35l56-sdw.o snd-soc-cs42l42-objs := cs42l42.o snd-soc-cs42l42-i2c-objs := cs42l42-i2c.o snd-soc-cs42l42-sdw-objs := cs42l42-sdw.o @@ -433,6 +438,11 @@ obj-$(CONFIG_SND_SOC_CS35L41_I2C) += snd-soc-cs35l41-i2c.o obj-$(CONFIG_SND_SOC_CS35L45) += snd-soc-cs35l45.o obj-$(CONFIG_SND_SOC_CS35L45_SPI) += snd-soc-cs35l45-spi.o obj-$(CONFIG_SND_SOC_CS35L45_I2C) += snd-soc-cs35l45-i2c.o +obj-$(CONFIG_SND_SOC_CS35L56) += snd-soc-cs35l56.o +obj-$(CONFIG_SND_SOC_CS35L56_SHARED) += snd-soc-cs35l56-shared.o +obj-$(CONFIG_SND_SOC_CS35L56_I2C) += snd-soc-cs35l56-i2c.o +obj-$(CONFIG_SND_SOC_CS35L56_SPI) += snd-soc-cs35l56-spi.o +obj-$(CONFIG_SND_SOC_CS35L56_SDW) += snd-soc-cs35l56-sdw.o obj-$(CONFIG_SND_SOC_CS42L42_CORE) += snd-soc-cs42l42.o obj-$(CONFIG_SND_SOC_CS42L42) += snd-soc-cs42l42-i2c.o obj-$(CONFIG_SND_SOC_CS42L42_SDW) += snd-soc-cs42l42-sdw.o diff --git a/sound/soc/codecs/cs35l56-i2c.c b/sound/soc/codecs/cs35l56-i2c.c new file mode 100644 index 000000000000..4b7f034a7670 --- /dev/null +++ b/sound/soc/codecs/cs35l56-i2c.c @@ -0,0 +1,83 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// CS35L56 ALSA SoC audio driver I2C binding +// +// Copyright (C) 2023 Cirrus Logic, Inc. and +// Cirrus Logic International Semiconductor Ltd. + +#include <linux/acpi.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/regmap.h> +#include <linux/slab.h> +#include <linux/types.h> + +#include "cs35l56.h" + +static int cs35l56_i2c_probe(struct i2c_client *client) +{ + struct cs35l56_private *cs35l56; + struct device *dev = &client->dev; + const struct regmap_config *regmap_config = &cs35l56_regmap_i2c; + int ret; + + cs35l56 = devm_kzalloc(dev, sizeof(struct cs35l56_private), GFP_KERNEL); + if (!cs35l56) + return -ENOMEM; + + cs35l56->dev = dev; + cs35l56->irq = client->irq; + cs35l56->can_hibernate = true; + + i2c_set_clientdata(client, cs35l56); + cs35l56->regmap = devm_regmap_init_i2c(client, regmap_config); + if (IS_ERR(cs35l56->regmap)) { + ret = PTR_ERR(cs35l56->regmap); + return dev_err_probe(cs35l56->dev, ret, "Failed to allocate register map\n"); + } + + ret = cs35l56_common_probe(cs35l56); + if (ret != 0) + return ret; + + ret = cs35l56_init(cs35l56); + if (ret == 0) + ret = cs35l56_irq_request(cs35l56); + if (ret < 0) + cs35l56_remove(cs35l56); + + return ret; +} + +static void cs35l56_i2c_remove(struct i2c_client *client) +{ + struct cs35l56_private *cs35l56 = i2c_get_clientdata(client); + + cs35l56_remove(cs35l56); +} + +static const struct i2c_device_id cs35l56_id_i2c[] = { + { "cs35l56", 0 }, + {} +}; +MODULE_DEVICE_TABLE(i2c, cs35l56_id_i2c); + +static struct i2c_driver cs35l56_i2c_driver = { + .driver = { + .name = "cs35l56", + .pm = &cs35l56_pm_ops_i2c_spi, + }, + .id_table = cs35l56_id_i2c, + .probe_new = cs35l56_i2c_probe, + .remove = cs35l56_i2c_remove, +}; + +module_i2c_driver(cs35l56_i2c_driver); + +MODULE_DESCRIPTION("ASoC CS35L56 I2C driver"); +MODULE_IMPORT_NS(SND_SOC_CS35L56_CORE); +MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED); +MODULE_AUTHOR("Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>"); +MODULE_AUTHOR("Simon Trimmer <simont@xxxxxxxxxxxxxxxxxxxxx>"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/codecs/cs35l56-sdw.c b/sound/soc/codecs/cs35l56-sdw.c new file mode 100644 index 000000000000..448ef3609f4c --- /dev/null +++ b/sound/soc/codecs/cs35l56-sdw.c @@ -0,0 +1,528 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// CS35L56 ALSA SoC audio driver SoundWire binding +// +// Copyright (C) 2023 Cirrus Logic, Inc. and +// Cirrus Logic International Semiconductor Ltd. + +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/module.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <linux/soundwire/sdw.h> +#include <linux/soundwire/sdw_registers.h> +#include <linux/soundwire/sdw_type.h> +#include <linux/swab.h> +#include <linux/types.h> +#include <linux/workqueue.h> + +#include "cs35l56.h" + +/* Register addresses are offset when sent over SoundWire */ +#define CS35L56_SDW_ADDR_OFFSET 0x8000 + +static int cs35l56_sdw_read_one(struct sdw_slave *peripheral, unsigned int reg, void *buf) +{ + int ret; + + ret = sdw_nread_no_pm(peripheral, reg, 4, (u8 *)buf); + if (ret != 0) { + dev_err(&peripheral->dev, "Read failed @%#x:%d\n", reg, ret); + return ret; + } + + swab32s((u32 *)buf); + + return 0; +} + +static int cs35l56_sdw_read(void *context, const void *reg_buf, + const size_t reg_size, void *val_buf, + size_t val_size) +{ + struct sdw_slave *peripheral = context; + u8 *buf8 = val_buf; + unsigned int reg, bytes; + int ret; + + reg = le32_to_cpu(*(const __le32 *)reg_buf); + reg += CS35L56_SDW_ADDR_OFFSET; + + if (val_size == 4) + return cs35l56_sdw_read_one(peripheral, reg, val_buf); + + while (val_size) { + bytes = SDW_REG_NO_PAGE - (reg & SDW_REGADDR); /* to end of page */ + if (bytes > val_size) + bytes = val_size; + + ret = sdw_nread_no_pm(peripheral, reg, bytes, buf8); + if (ret != 0) { + dev_err(&peripheral->dev, "Read failed @%#x..%#x:%d\n", + reg, reg + bytes - 1, ret); + return ret; + } + + swab32_array((u32 *)buf8, bytes / 4); + val_size -= bytes; + reg += bytes; + buf8 += bytes; + } + + return 0; +} + +static inline void cs35l56_swab_copy(void *dest, const void *src, size_t nbytes) +{ + u32 *dest32 = dest; + const u32 *src32 = src; + + for (; nbytes > 0; nbytes -= 4) + *dest32++ = swab32(*src32++); +} + +static int cs35l56_sdw_write_one(struct sdw_slave *peripheral, unsigned int reg, const void *buf) +{ + u32 val_le = swab32(*(u32 *)buf); + int ret; + + ret = sdw_nwrite_no_pm(peripheral, reg, 4, (u8 *)&val_le); + if (ret != 0) { + dev_err(&peripheral->dev, "Write failed @%#x:%d\n", reg, ret); + return ret; + } + + return 0; +} + +static int cs35l56_sdw_gather_write(void *context, + const void *reg_buf, size_t reg_size, + const void *val_buf, size_t val_size) +{ + struct sdw_slave *peripheral = context; + const u8 *src_be = val_buf; + u32 val_le_buf[64]; /* Define u32 so it is 32-bit aligned */ + unsigned int reg, bytes; + int ret; + + reg = le32_to_cpu(*(const __le32 *)reg_buf); + reg += CS35L56_SDW_ADDR_OFFSET; + + if (val_size == 4) + return cs35l56_sdw_write_one(peripheral, reg, src_be); + + while (val_size) { + bytes = SDW_REG_NO_PAGE - (reg & SDW_REGADDR); /* to end of page */ + if (bytes > val_size) + bytes = val_size; + if (bytes > sizeof(val_le_buf)) + bytes = sizeof(val_le_buf); + + cs35l56_swab_copy(val_le_buf, src_be, bytes); + + ret = sdw_nwrite_no_pm(peripheral, reg, bytes, (u8 *)val_le_buf); + if (ret != 0) { + dev_err(&peripheral->dev, "Write failed @%#x..%#x:%d\n", + reg, reg + bytes - 1, ret); + return ret; + } + + val_size -= bytes; + reg += bytes; + src_be += bytes; + } + + return 0; +} + +static int cs35l56_sdw_write(void *context, const void *val_buf, size_t val_size) +{ + const u8 *src_buf = val_buf; + + /* First word of val_buf contains the destination address */ + return cs35l56_sdw_gather_write(context, &src_buf[0], 4, &src_buf[4], val_size - 4); +} + +/* + * Registers are big-endian on I2C and SPI but little-endian on SoundWire. + * Exported firmware controls are big-endian on I2C/SPI but little-endian on + * SoundWire. Firmware files are always big-endian and are opaque blobs. + * Present a big-endian regmap and hide the endianness swap, so that the ALSA + * byte controls always have the same byte order, and firmware file blobs + * can be written verbatim. + */ +static const struct regmap_bus cs35l56_regmap_bus_sdw = { + .read = cs35l56_sdw_read, + .write = cs35l56_sdw_write, + .gather_write = cs35l56_sdw_gather_write, + .reg_format_endian_default = REGMAP_ENDIAN_LITTLE, + .val_format_endian_default = REGMAP_ENDIAN_BIG, +}; + +static void cs35l56_sdw_init(struct sdw_slave *peripheral) +{ + struct cs35l56_private *cs35l56 = dev_get_drvdata(&peripheral->dev); + int ret; + + pm_runtime_get_noresume(cs35l56->dev); + + regcache_cache_only(cs35l56->regmap, false); + + ret = cs35l56_init(cs35l56); + if (ret < 0) { + regcache_cache_only(cs35l56->regmap, true); + goto out; + } + + /* + * cs35l56_init can return with !init_done if it triggered + * a soft reset. + */ + if (cs35l56->init_done) { + /* Enable SoundWire interrupts */ + sdw_write_no_pm(peripheral, CS35L56_SDW_GEN_INT_MASK_1, + CS35L56_SDW_INT_MASK_CODEC_IRQ); + } + +out: + pm_runtime_mark_last_busy(cs35l56->dev); + pm_runtime_put_autosuspend(cs35l56->dev); +} + +static int cs35l56_sdw_interrupt(struct sdw_slave *peripheral, + struct sdw_slave_intr_status *status) +{ + struct cs35l56_private *cs35l56 = dev_get_drvdata(&peripheral->dev); + + /* SoundWire core holds our pm_runtime when calling this function. */ + + dev_dbg(cs35l56->dev, "int control_port=%#x\n", status->control_port); + + if ((status->control_port & SDW_SCP_INT1_IMPL_DEF) == 0) + return 0; + + /* + * Prevent bus manager suspending and possibly issuing a + * bus-reset before the queued work has run. + */ + pm_runtime_get_noresume(cs35l56->dev); + + /* + * Mask and clear until it has been handled. The read of GEN_INT_STAT_1 + * is required as per the SoundWire spec for interrupt status bits + * to clear. GEN_INT_MASK_1 masks the _inputs_ to GEN_INT_STAT1. + * None of the interrupts are time-critical so use the + * power-efficient queue. + */ + sdw_write_no_pm(peripheral, CS35L56_SDW_GEN_INT_MASK_1, 0); + sdw_read_no_pm(peripheral, CS35L56_SDW_GEN_INT_STAT_1); + sdw_write_no_pm(peripheral, CS35L56_SDW_GEN_INT_STAT_1, 0xFF); + queue_work(system_power_efficient_wq, &cs35l56->sdw_irq_work); + + return 0; +} + +static void cs35l56_sdw_irq_work(struct work_struct *work) +{ + struct cs35l56_private *cs35l56 = container_of(work, + struct cs35l56_private, + sdw_irq_work); + + cs35l56_irq(-1, cs35l56); + + /* unmask interrupts */ + if (!cs35l56->sdw_irq_no_unmask) + sdw_write_no_pm(cs35l56->sdw_peripheral, CS35L56_SDW_GEN_INT_MASK_1, + CS35L56_SDW_INT_MASK_CODEC_IRQ); + + pm_runtime_put_autosuspend(cs35l56->dev); +} + +static int cs35l56_sdw_read_prop(struct sdw_slave *peripheral) +{ + struct cs35l56_private *cs35l56 = dev_get_drvdata(&peripheral->dev); + struct sdw_slave_prop *prop = &peripheral->prop; + struct sdw_dpn_prop *ports; + + ports = devm_kcalloc(cs35l56->dev, 2, sizeof(*ports), GFP_KERNEL); + if (!ports) + return -ENOMEM; + + prop->source_ports = BIT(CS35L56_SDW1_CAPTURE_PORT); + prop->sink_ports = BIT(CS35L56_SDW1_PLAYBACK_PORT); + prop->paging_support = true; + prop->clk_stop_mode1 = false; + prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY; + prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY | SDW_SCP_INT1_IMPL_DEF; + + /* DP1 - playback */ + ports[0].num = CS35L56_SDW1_PLAYBACK_PORT; + ports[0].type = SDW_DPN_FULL; + ports[0].ch_prep_timeout = 10; + prop->sink_dpn_prop = &ports[0]; + + /* DP3 - capture */ + ports[1].num = CS35L56_SDW1_CAPTURE_PORT; + ports[1].type = SDW_DPN_FULL; + ports[1].ch_prep_timeout = 10; + prop->src_dpn_prop = &ports[1]; + + return 0; +} + +static int cs35l56_sdw_update_status(struct sdw_slave *peripheral, + enum sdw_slave_status status) +{ + struct cs35l56_private *cs35l56 = dev_get_drvdata(&peripheral->dev); + + switch (status) { + case SDW_SLAVE_ATTACHED: + dev_dbg(cs35l56->dev, "%s: ATTACHED\n", __func__); + if (cs35l56->sdw_attached) + break; + + if (!cs35l56->init_done || cs35l56->soft_resetting) + cs35l56_sdw_init(peripheral); + + cs35l56->sdw_attached = true; + break; + case SDW_SLAVE_UNATTACHED: + dev_dbg(cs35l56->dev, "%s: UNATTACHED\n", __func__); + cs35l56->sdw_attached = false; + break; + default: + break; + } + + return 0; +} + +static int cs35l56_a1_kick_divider(struct cs35l56_private *cs35l56, + struct sdw_slave *peripheral) +{ + unsigned int curr_scale_reg, next_scale_reg; + int curr_scale, next_scale, ret; + + if (!cs35l56->init_done) + return 0; + + if (peripheral->bus->params.curr_bank) { + curr_scale_reg = SDW_SCP_BUSCLOCK_SCALE_B1; + next_scale_reg = SDW_SCP_BUSCLOCK_SCALE_B0; + } else { + curr_scale_reg = SDW_SCP_BUSCLOCK_SCALE_B0; + next_scale_reg = SDW_SCP_BUSCLOCK_SCALE_B1; + } + + /* + * Current clock scale value must be different to new value. + * Modify current to guarantee this. If next still has the dummy + * value we wrote when it was current, the core code has not set + * a new scale so restore its original good value + */ + curr_scale = sdw_read_no_pm(peripheral, curr_scale_reg); + if (curr_scale < 0) { + dev_err(cs35l56->dev, "Failed to read current clock scale: %d\n", curr_scale); + return curr_scale; + } + + next_scale = sdw_read_no_pm(peripheral, next_scale_reg); + if (next_scale < 0) { + dev_err(cs35l56->dev, "Failed to read next clock scale: %d\n", next_scale); + return next_scale; + } + + if (next_scale == CS35L56_SDW_INVALID_BUS_SCALE) { + next_scale = cs35l56->old_sdw_clock_scale; + ret = sdw_write_no_pm(peripheral, next_scale_reg, next_scale); + if (ret < 0) { + dev_err(cs35l56->dev, "Failed to modify current clock scale: %d\n", ret); + return ret; + } + } + + cs35l56->old_sdw_clock_scale = curr_scale; + ret = sdw_write_no_pm(peripheral, curr_scale_reg, CS35L56_SDW_INVALID_BUS_SCALE); + if (ret < 0) { + dev_err(cs35l56->dev, "Failed to modify current clock scale: %d\n", ret); + return ret; + } + + dev_dbg(cs35l56->dev, "Next bus scale: %#x\n", next_scale); + + return 0; +} + +static int cs35l56_sdw_bus_config(struct sdw_slave *peripheral, + struct sdw_bus_params *params) +{ + struct cs35l56_private *cs35l56 = dev_get_drvdata(&peripheral->dev); + int sclk; + + sclk = params->curr_dr_freq / 2; + dev_dbg(cs35l56->dev, "%s: sclk=%u c=%u r=%u\n", __func__, sclk, params->col, params->row); + + if (cs35l56->rev < 0xb0) + return cs35l56_a1_kick_divider(cs35l56, peripheral); + + return 0; +} + +static int __maybe_unused cs35l56_sdw_clk_stop(struct sdw_slave *peripheral, + enum sdw_clk_stop_mode mode, + enum sdw_clk_stop_type type) +{ + struct cs35l56_private *cs35l56 = dev_get_drvdata(&peripheral->dev); + + dev_dbg(cs35l56->dev, "%s: mode:%d type:%d\n", __func__, mode, type); + + return 0; +} + +static const struct sdw_slave_ops cs35l56_sdw_ops = { + .read_prop = cs35l56_sdw_read_prop, + .interrupt_callback = cs35l56_sdw_interrupt, + .update_status = cs35l56_sdw_update_status, + .bus_config = cs35l56_sdw_bus_config, +#ifdef DEBUG + .clk_stop = cs35l56_sdw_clk_stop, +#endif +}; + +static int __maybe_unused cs35l56_sdw_handle_unattach(struct cs35l56_private *cs35l56) +{ + struct sdw_slave *peripheral = cs35l56->sdw_peripheral; + + if (peripheral->unattach_request) { + /* Cannot access registers until bus is re-initialized. */ + dev_dbg(cs35l56->dev, "Wait for initialization_complete\n"); + if (!wait_for_completion_timeout(&peripheral->initialization_complete, + msecs_to_jiffies(5000))) { + dev_err(cs35l56->dev, "initialization_complete timed out\n"); + return -ETIMEDOUT; + } + + peripheral->unattach_request = 0; + + /* + * Don't call regcache_mark_dirty(), we can't be sure that the + * Manager really did issue a Bus Reset. + */ + } + + return 0; +} + +static int __maybe_unused cs35l56_sdw_runtime_suspend(struct device *dev) +{ + struct cs35l56_private *cs35l56 = dev_get_drvdata(dev); + + if (!cs35l56->init_done) + return 0; + + return cs35l56_runtime_suspend(dev); +} + +static int __maybe_unused cs35l56_sdw_runtime_resume(struct device *dev) +{ + struct cs35l56_private *cs35l56 = dev_get_drvdata(dev); + int ret; + + dev_dbg(dev, "Runtime resume\n"); + + if (!cs35l56->init_done) + return 0; + + ret = cs35l56_sdw_handle_unattach(cs35l56); + if (ret < 0) + return ret; + + ret = cs35l56_runtime_resume_common(cs35l56); + if (ret) + return ret; + + /* Re-enable SoundWire interrupts */ + sdw_write_no_pm(cs35l56->sdw_peripheral, CS35L56_SDW_GEN_INT_MASK_1, + CS35L56_SDW_INT_MASK_CODEC_IRQ); + + return 0; +} + +static int cs35l56_sdw_probe(struct sdw_slave *peripheral, const struct sdw_device_id *id) +{ + struct device *dev = &peripheral->dev; + struct cs35l56_private *cs35l56; + int ret; + + cs35l56 = devm_kzalloc(dev, sizeof(*cs35l56), GFP_KERNEL); + if (!cs35l56) + return -ENOMEM; + + cs35l56->dev = dev; + cs35l56->sdw_peripheral = peripheral; + INIT_WORK(&cs35l56->sdw_irq_work, cs35l56_sdw_irq_work); + + dev_set_drvdata(dev, cs35l56); + + cs35l56->regmap = devm_regmap_init(dev, &cs35l56_regmap_bus_sdw, + peripheral, &cs35l56_regmap_sdw); + if (IS_ERR(cs35l56->regmap)) { + ret = PTR_ERR(cs35l56->regmap); + return dev_err_probe(dev, ret, "Failed to allocate register map\n"); + } + + /* Start in cache-only until device is enumerated */ + regcache_cache_only(cs35l56->regmap, true); + + ret = cs35l56_common_probe(cs35l56); + if (ret != 0) + return ret; + + return 0; +} + +static int cs35l56_sdw_remove(struct sdw_slave *peripheral) +{ + struct cs35l56_private *cs35l56 = dev_get_drvdata(&peripheral->dev); + + /* Disable SoundWire interrupts */ + cs35l56->sdw_irq_no_unmask = true; + cancel_work_sync(&cs35l56->sdw_irq_work); + sdw_write_no_pm(peripheral, CS35L56_SDW_GEN_INT_MASK_1, 0); + sdw_read_no_pm(peripheral, CS35L56_SDW_GEN_INT_STAT_1); + sdw_write_no_pm(peripheral, CS35L56_SDW_GEN_INT_STAT_1, 0xFF); + + return cs35l56_remove(cs35l56); +} + +static const struct dev_pm_ops cs35l56_sdw_pm = { + SET_RUNTIME_PM_OPS(cs35l56_sdw_runtime_suspend, cs35l56_sdw_runtime_resume, NULL) +}; + +static const struct sdw_device_id cs35l56_sdw_id[] = { + SDW_SLAVE_ENTRY(0x01FA, 0x3556, 0), + {}, +}; +MODULE_DEVICE_TABLE(sdw, cs35l56_sdw_id); + +static struct sdw_driver cs35l56_sdw_driver = { + .driver = { + .name = "cs35l56", + .pm = &cs35l56_sdw_pm, + }, + .probe = cs35l56_sdw_probe, + .remove = cs35l56_sdw_remove, + .ops = &cs35l56_sdw_ops, + .id_table = cs35l56_sdw_id, +}; + +module_sdw_driver(cs35l56_sdw_driver); + +MODULE_DESCRIPTION("ASoC CS35L56 SoundWire driver"); +MODULE_IMPORT_NS(SND_SOC_CS35L56_CORE); +MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED); +MODULE_AUTHOR("Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>"); +MODULE_AUTHOR("Simon Trimmer <simont@xxxxxxxxxxxxxxxxxxxxx>"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/codecs/cs35l56-shared.c b/sound/soc/codecs/cs35l56-shared.c new file mode 100644 index 000000000000..d8bc06ad4888 --- /dev/null +++ b/sound/soc/codecs/cs35l56-shared.c @@ -0,0 +1,390 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Components shared between ASoC and HDA CS35L56 drivers +// +// Copyright (C) 2023 Cirrus Logic, Inc. and +// Cirrus Logic International Semiconductor Ltd. + +#include <linux/regmap.h> +#include <linux/regulator/consumer.h> +#include <linux/types.h> + +#include "cs35l56.h" + +static const struct reg_default cs35l56_reg_defaults[] = { + { CS35L56_ASP1_ENABLES1, 0x00000000 }, + { CS35L56_ASP1_CONTROL1, 0x00000028 }, + { CS35L56_ASP1_CONTROL2, 0x18180200 }, + { CS35L56_ASP1_CONTROL3, 0x00000002 }, + { CS35L56_ASP1_FRAME_CONTROL1, 0x03020100 }, + { CS35L56_ASP1_FRAME_CONTROL5, 0x00020100 }, + { CS35L56_ASP1_DATA_CONTROL1, 0x00000018 }, + { CS35L56_ASP1_DATA_CONTROL5, 0x00000018 }, + { CS35L56_ASP1TX1_INPUT, 0x00000018 }, + { CS35L56_ASP1TX2_INPUT, 0x00000019 }, + { CS35L56_ASP1TX3_INPUT, 0x00000020 }, + { CS35L56_ASP1TX4_INPUT, 0x00000028 }, + { CS35L56_SWIRE_DP3_CH1_INPUT, 0x00000018 }, + { CS35L56_SWIRE_DP3_CH2_INPUT, 0x00000019 }, + { CS35L56_SWIRE_DP3_CH3_INPUT, 0x00000029 }, + { CS35L56_SWIRE_DP3_CH4_INPUT, 0x00000028 }, + { CS35L56_SWIRE_DP3_CH5_INPUT, 0x00000018 }, + { CS35L56_SWIRE_DP3_CH6_INPUT, 0x00000018 }, + { CS35L56_IRQ1_CFG, 0x00000000 }, + { CS35L56_IRQ1_MASK_1, 0x83ffffff }, + { CS35L56_IRQ1_MASK_2, 0xffff7fff }, + { CS35L56_IRQ1_MASK_4, 0xe0ffffff }, + { CS35L56_IRQ1_MASK_8, 0xfc000fff }, + { CS35L56_IRQ1_MASK_18, 0x1f7df0ff }, + { CS35L56_IRQ1_MASK_20, 0x15c00000 }, + /* CS35L56_MAIN_RENDER_USER_MUTE - soft register, no default */ + /* CS35L56_MAIN_RENDER_USER_VOLUME - soft register, no default */ + /* CS35L56_MAIN_POSTURE_NUMBER - soft register, no default */ +}; + +/* + * The Ax devices have different default register values to that of B0, + * establish a common set of register defaults. + */ +static const struct reg_sequence cs35l56_reva_patch[] = { + { CS35L56_SWIRE_DP3_CH5_INPUT, 0x00000018 }, + { CS35L56_SWIRE_DP3_CH6_INPUT, 0x00000018 }, +}; + +void cs35l56_patch(struct device *dev, struct regmap *regmap, u8 revid) +{ + int ret; + + if (revid >= CS35L56_REVID_B0) + return; + + ret = regmap_register_patch(regmap, cs35l56_reva_patch, + ARRAY_SIZE(cs35l56_reva_patch)); + if (ret) + dev_err(dev, "Failed to apply patch: %d\n", ret); +} +EXPORT_SYMBOL_NS_GPL(cs35l56_patch, SND_SOC_CS35L56_SHARED); + +static bool cs35l56_is_dsp_memory(unsigned int reg) +{ + switch (reg) { + case CS35L56_DSP1_XMEM_PACKED_0 ... CS35L56_DSP1_XMEM_PACKED_6143: + case CS35L56_DSP1_XMEM_UNPACKED32_0 ... CS35L56_DSP1_XMEM_UNPACKED32_4095: + case CS35L56_DSP1_XMEM_UNPACKED24_0 ... CS35L56_DSP1_XMEM_UNPACKED24_8191: + case CS35L56_DSP1_YMEM_PACKED_0 ... CS35L56_DSP1_YMEM_PACKED_4604: + case CS35L56_DSP1_YMEM_UNPACKED32_0 ... CS35L56_DSP1_YMEM_UNPACKED32_3070: + case CS35L56_DSP1_YMEM_UNPACKED24_0 ... CS35L56_DSP1_YMEM_UNPACKED24_6141: + case CS35L56_DSP1_PMEM_0 ... CS35L56_DSP1_PMEM_5114: + return true; + default: + return false; + } +} + +static bool cs35l56_readable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case CS35L56_DEVID: + case CS35L56_REVID: + case CS35L56_RELID: + case CS35L56_OTPID: + case CS35L56_SFT_RESET: + case CS35L56_GLOBAL_ENABLES: + case CS35L56_BLOCK_ENABLES: + case CS35L56_BLOCK_ENABLES2: + case CS35L56_REFCLK_INPUT: + case CS35L56_GLOBAL_SAMPLE_RATE: + case CS35L56_ASP1_ENABLES1: + case CS35L56_ASP1_CONTROL1: + case CS35L56_ASP1_CONTROL2: + case CS35L56_ASP1_CONTROL3: + case CS35L56_ASP1_FRAME_CONTROL1: + case CS35L56_ASP1_FRAME_CONTROL5: + case CS35L56_ASP1_DATA_CONTROL1: + case CS35L56_ASP1_DATA_CONTROL5: + case CS35L56_DACPCM1_INPUT: + case CS35L56_DACPCM2_INPUT: + case CS35L56_ASP1TX1_INPUT: + case CS35L56_ASP1TX2_INPUT: + case CS35L56_ASP1TX3_INPUT: + case CS35L56_ASP1TX4_INPUT: + case CS35L56_DSP1RX1_INPUT: + case CS35L56_DSP1RX2_INPUT: + case CS35L56_SWIRE_DP3_CH1_INPUT: + case CS35L56_SWIRE_DP3_CH2_INPUT: + case CS35L56_SWIRE_DP3_CH3_INPUT: + case CS35L56_SWIRE_DP3_CH4_INPUT: + case CS35L56_SWIRE_DP3_CH5_INPUT: + case CS35L56_SWIRE_DP3_CH6_INPUT: + case CS35L56_IRQ1_CFG: + case CS35L56_IRQ1_STATUS: + case CS35L56_IRQ1_EINT_1 ... CS35L56_IRQ1_EINT_8: + case CS35L56_IRQ1_EINT_18: + case CS35L56_IRQ1_EINT_20: + case CS35L56_IRQ1_MASK_1: + case CS35L56_IRQ1_MASK_2: + case CS35L56_IRQ1_MASK_4: + case CS35L56_IRQ1_MASK_8: + case CS35L56_IRQ1_MASK_18: + case CS35L56_IRQ1_MASK_20: + case CS35L56_DSP_VIRTUAL1_MBOX_1: + case CS35L56_DSP_VIRTUAL1_MBOX_2: + case CS35L56_DSP_VIRTUAL1_MBOX_3: + case CS35L56_DSP_VIRTUAL1_MBOX_4: + case CS35L56_DSP_VIRTUAL1_MBOX_5: + case CS35L56_DSP_VIRTUAL1_MBOX_6: + case CS35L56_DSP_VIRTUAL1_MBOX_7: + case CS35L56_DSP_VIRTUAL1_MBOX_8: + case CS35L56_DSP_RESTRICT_STS1: + case CS35L56_DSP1_SYS_INFO_ID ... CS35L56_DSP1_SYS_INFO_END: + case CS35L56_DSP1_AHBM_WINDOW_DEBUG_0: + case CS35L56_DSP1_AHBM_WINDOW_DEBUG_1: + case CS35L56_DSP1_SCRATCH1: + case CS35L56_DSP1_SCRATCH2: + case CS35L56_DSP1_SCRATCH3: + case CS35L56_DSP1_SCRATCH4: + return true; + default: + return cs35l56_is_dsp_memory(reg); + } +} + +static bool cs35l56_precious_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case CS35L56_DSP1_XMEM_PACKED_0 ... CS35L56_DSP1_XMEM_PACKED_6143: + case CS35L56_DSP1_YMEM_PACKED_0 ... CS35L56_DSP1_YMEM_PACKED_4604: + case CS35L56_DSP1_PMEM_0 ... CS35L56_DSP1_PMEM_5114: + return true; + default: + return false; + } +} + +static bool cs35l56_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case CS35L56_DEVID: + case CS35L56_REVID: + case CS35L56_RELID: + case CS35L56_OTPID: + case CS35L56_SFT_RESET: + case CS35L56_GLOBAL_ENABLES: /* owned by firmware */ + case CS35L56_BLOCK_ENABLES: /* owned by firmware */ + case CS35L56_BLOCK_ENABLES2: /* owned by firmware */ + case CS35L56_REFCLK_INPUT: /* owned by firmware */ + case CS35L56_GLOBAL_SAMPLE_RATE: /* owned by firmware */ + case CS35L56_DACPCM1_INPUT: /* owned by firmware */ + case CS35L56_DACPCM2_INPUT: /* owned by firmware */ + case CS35L56_DSP1RX1_INPUT: /* owned by firmware */ + case CS35L56_DSP1RX2_INPUT: /* owned by firmware */ + case CS35L56_IRQ1_STATUS: + case CS35L56_IRQ1_EINT_1 ... CS35L56_IRQ1_EINT_8: + case CS35L56_IRQ1_EINT_18: + case CS35L56_IRQ1_EINT_20: + case CS35L56_DSP_VIRTUAL1_MBOX_1: + case CS35L56_DSP_VIRTUAL1_MBOX_2: + case CS35L56_DSP_VIRTUAL1_MBOX_3: + case CS35L56_DSP_VIRTUAL1_MBOX_4: + case CS35L56_DSP_VIRTUAL1_MBOX_5: + case CS35L56_DSP_VIRTUAL1_MBOX_6: + case CS35L56_DSP_VIRTUAL1_MBOX_7: + case CS35L56_DSP_VIRTUAL1_MBOX_8: + case CS35L56_DSP_RESTRICT_STS1: + case CS35L56_DSP1_SYS_INFO_ID ... CS35L56_DSP1_SYS_INFO_END: + case CS35L56_DSP1_AHBM_WINDOW_DEBUG_0: + case CS35L56_DSP1_AHBM_WINDOW_DEBUG_1: + case CS35L56_DSP1_SCRATCH1: + case CS35L56_DSP1_SCRATCH2: + case CS35L56_DSP1_SCRATCH3: + case CS35L56_DSP1_SCRATCH4: + return true; + case CS35L56_MAIN_RENDER_USER_MUTE: + case CS35L56_MAIN_RENDER_USER_VOLUME: + case CS35L56_MAIN_POSTURE_NUMBER: + return false; + default: + return cs35l56_is_dsp_memory(reg); + } +} + +static const u32 cs35l56_firmware_registers[] = { + CS35L56_MAIN_RENDER_USER_MUTE, + CS35L56_MAIN_RENDER_USER_VOLUME, + CS35L56_MAIN_POSTURE_NUMBER, +}; + +void cs35l56_reread_firmware_registers(struct device *dev, struct regmap *regmap) +{ + int i; + unsigned int val; + + for (i = 0; i < ARRAY_SIZE(cs35l56_firmware_registers); i++) { + regmap_read(regmap, cs35l56_firmware_registers[i], &val); + dev_dbg(dev, "%s: %d: %#x: %#x\n", __func__, + i, cs35l56_firmware_registers[i], val); + } +} +EXPORT_SYMBOL_NS_GPL(cs35l56_reread_firmware_registers, SND_SOC_CS35L56_SHARED); + +const struct cs_dsp_region cs35l56_dsp1_regions[] = { + { .type = WMFW_HALO_PM_PACKED, .base = CS35L56_DSP1_PMEM_0 }, + { .type = WMFW_HALO_XM_PACKED, .base = CS35L56_DSP1_XMEM_PACKED_0 }, + { .type = WMFW_HALO_YM_PACKED, .base = CS35L56_DSP1_YMEM_PACKED_0 }, + { .type = WMFW_ADSP2_XM, .base = CS35L56_DSP1_XMEM_UNPACKED24_0 }, + { .type = WMFW_ADSP2_YM, .base = CS35L56_DSP1_YMEM_UNPACKED24_0 }, +}; +EXPORT_SYMBOL_NS_GPL(cs35l56_dsp1_regions, SND_SOC_CS35L56_SHARED); + +static const u32 cs35l56_bclk_valid_for_pll_freq_table[] = { + [0x0C] = 128000, + [0x0F] = 256000, + [0x11] = 384000, + [0x12] = 512000, + [0x15] = 768000, + [0x17] = 1024000, + [0x1A] = 1500000, + [0x1B] = 1536000, + [0x1C] = 2000000, + [0x1D] = 2048000, + [0x1E] = 2400000, + [0x20] = 3000000, + [0x21] = 3072000, + [0x23] = 4000000, + [0x24] = 4096000, + [0x25] = 4800000, + [0x27] = 6000000, + [0x28] = 6144000, + [0x29] = 6250000, + [0x2A] = 6400000, + [0x2E] = 8000000, + [0x2F] = 8192000, + [0x30] = 9600000, + [0x32] = 12000000, + [0x33] = 12288000, + [0x37] = 13500000, + [0x38] = 19200000, + [0x39] = 22579200, + [0x3B] = 24576000, +}; + +int cs35l56_get_bclk_freq_id(unsigned int freq) +{ + int i; + + if (freq == 0) + return -EINVAL; + + /* The BCLK frequency must be a valid PLL REFCLK */ + for (i = 0; i < ARRAY_SIZE(cs35l56_bclk_valid_for_pll_freq_table); ++i) { + if (cs35l56_bclk_valid_for_pll_freq_table[i] == freq) + return i; + } + + return -EINVAL; +} +EXPORT_SYMBOL_NS_GPL(cs35l56_get_bclk_freq_id, SND_SOC_CS35L56_SHARED); + +static const char * const cs35l56_supplies[/* auto-sized */] = { + "VDD_P", + "VDD_IO", + "VDD_A", +}; + +void cs35l56_fill_supply_names(struct regulator_bulk_data *data) +{ + int i; + + BUILD_BUG_ON(ARRAY_SIZE(cs35l56_supplies) != CS35L56_NUM_BULK_SUPPLIES); + for (i = 0; i < ARRAY_SIZE(cs35l56_supplies); i++) + data[i].supply = cs35l56_supplies[i]; +} +EXPORT_SYMBOL_NS_GPL(cs35l56_fill_supply_names, SND_SOC_CS35L56_SHARED); + +const char * const cs35l56_tx_input_texts[] = { + "None", "ASP1RX1", "ASP1RX2", "VMON", "IMON", "ERRVOL", "CLASSH", + "VDDBMON", "VBSTMON", "DSP1TX1", "DSP1TX2", "DSP1TX3", "DSP1TX4", + "DSP1TX5", "DSP1TX6", "DSP1TX7", "DSP1TX8", "TEMPMON", + "INTERPOLATOR", "SDW1RX1", "SDW1RX2", "SDW2RX1", +}; +EXPORT_SYMBOL_NS_GPL(cs35l56_tx_input_texts, SND_SOC_CS35L56_SHARED); + +const unsigned int cs35l56_tx_input_values[] = { + CS35L56_INPUT_SRC_NONE, + CS35L56_INPUT_SRC_ASP1RX1, + CS35L56_INPUT_SRC_ASP1RX2, + CS35L56_INPUT_SRC_VMON, + CS35L56_INPUT_SRC_IMON, + CS35L56_INPUT_SRC_ERR_VOL, + CS35L56_INPUT_SRC_CLASSH, + CS35L56_INPUT_SRC_VDDBMON, + CS35L56_INPUT_SRC_VBSTMON, + CS35L56_INPUT_SRC_DSP1TX1, + CS35L56_INPUT_SRC_DSP1TX2, + CS35L56_INPUT_SRC_DSP1TX3, + CS35L56_INPUT_SRC_DSP1TX4, + CS35L56_INPUT_SRC_DSP1TX5, + CS35L56_INPUT_SRC_DSP1TX6, + CS35L56_INPUT_SRC_DSP1TX7, + CS35L56_INPUT_SRC_DSP1TX8, + CS35L56_INPUT_SRC_TEMPMON, + CS35L56_INPUT_SRC_INTERPOLATOR, + CS35L56_INPUT_SRC_SWIRE_RX1, + CS35L56_INPUT_SRC_SWIRE_RX2, + CS35L56_INPUT_SRC_SWIRE_RX3, +}; +EXPORT_SYMBOL_NS_GPL(cs35l56_tx_input_values, SND_SOC_CS35L56_SHARED); + +struct regmap_config cs35l56_regmap_i2c = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .reg_format_endian = REGMAP_ENDIAN_BIG, + .val_format_endian = REGMAP_ENDIAN_BIG, + .max_register = CS35L56_DSP1_PMEM_5114, + .reg_defaults = cs35l56_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(cs35l56_reg_defaults), + .volatile_reg = cs35l56_volatile_reg, + .readable_reg = cs35l56_readable_reg, + .precious_reg = cs35l56_precious_reg, + .cache_type = REGCACHE_RBTREE, +}; +EXPORT_SYMBOL_NS_GPL(cs35l56_regmap_i2c, SND_SOC_CS35L56_SHARED); + +struct regmap_config cs35l56_regmap_spi = { + .reg_bits = 32, + .val_bits = 32, + .pad_bits = 16, + .reg_stride = 4, + .reg_format_endian = REGMAP_ENDIAN_BIG, + .val_format_endian = REGMAP_ENDIAN_BIG, + .max_register = CS35L56_DSP1_PMEM_5114, + .reg_defaults = cs35l56_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(cs35l56_reg_defaults), + .volatile_reg = cs35l56_volatile_reg, + .readable_reg = cs35l56_readable_reg, + .precious_reg = cs35l56_precious_reg, + .cache_type = REGCACHE_RBTREE, +}; +EXPORT_SYMBOL_NS_GPL(cs35l56_regmap_spi, SND_SOC_CS35L56_SHARED); + +struct regmap_config cs35l56_regmap_sdw = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .reg_format_endian = REGMAP_ENDIAN_LITTLE, + .val_format_endian = REGMAP_ENDIAN_BIG, + .max_register = CS35L56_DSP1_PMEM_5114, + .reg_defaults = cs35l56_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(cs35l56_reg_defaults), + .volatile_reg = cs35l56_volatile_reg, + .readable_reg = cs35l56_readable_reg, + .precious_reg = cs35l56_precious_reg, + .cache_type = REGCACHE_RBTREE, +}; +EXPORT_SYMBOL_NS_GPL(cs35l56_regmap_sdw, SND_SOC_CS35L56_SHARED); + +MODULE_DESCRIPTION("ASoC CS35L56 Shared"); +MODULE_AUTHOR("Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>"); +MODULE_AUTHOR("Simon Trimmer <simont@xxxxxxxxxxxxxxxxxxxxx>"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/codecs/cs35l56-spi.c b/sound/soc/codecs/cs35l56-spi.c new file mode 100644 index 000000000000..80dcf37daae2 --- /dev/null +++ b/sound/soc/codecs/cs35l56-spi.c @@ -0,0 +1,81 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// CS35L56 ALSA SoC audio driver SPI binding +// +// Copyright (C) 2023 Cirrus Logic, Inc. and +// Cirrus Logic International Semiconductor Ltd. + +#include <linux/acpi.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/regmap.h> +#include <linux/spi/spi.h> +#include <linux/types.h> + +#include "cs35l56.h" + +static int cs35l56_spi_probe(struct spi_device *spi) +{ + const struct regmap_config *regmap_config = &cs35l56_regmap_spi; + struct cs35l56_private *cs35l56; + int ret; + + cs35l56 = devm_kzalloc(&spi->dev, sizeof(struct cs35l56_private), GFP_KERNEL); + if (!cs35l56) + return -ENOMEM; + + spi_set_drvdata(spi, cs35l56); + cs35l56->regmap = devm_regmap_init_spi(spi, regmap_config); + if (IS_ERR(cs35l56->regmap)) { + ret = PTR_ERR(cs35l56->regmap); + return dev_err_probe(&spi->dev, ret, "Failed to allocate register map\n"); + return ret; + } + + cs35l56->dev = &spi->dev; + cs35l56->irq = spi->irq; + + ret = cs35l56_common_probe(cs35l56); + if (ret != 0) + return ret; + + ret = cs35l56_init(cs35l56); + if (ret == 0) + ret = cs35l56_irq_request(cs35l56); + if (ret < 0) + cs35l56_remove(cs35l56); + + return ret; +} + +static void cs35l56_spi_remove(struct spi_device *spi) +{ + struct cs35l56_private *cs35l56 = spi_get_drvdata(spi); + + cs35l56_remove(cs35l56); +} + +static const struct spi_device_id cs35l56_id_spi[] = { + { "cs35l56", 0 }, + {} +}; +MODULE_DEVICE_TABLE(spi, cs35l56_id_spi); + +static struct spi_driver cs35l56_spi_driver = { + .driver = { + .name = "cs35l56", + .pm = &cs35l56_pm_ops_i2c_spi, + }, + .id_table = cs35l56_id_spi, + .probe = cs35l56_spi_probe, + .remove = cs35l56_spi_remove, +}; + +module_spi_driver(cs35l56_spi_driver); + +MODULE_DESCRIPTION("ASoC CS35L56 SPI driver"); +MODULE_IMPORT_NS(SND_SOC_CS35L56_CORE); +MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED); +MODULE_AUTHOR("Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>"); +MODULE_AUTHOR("Simon Trimmer <simont@xxxxxxxxxxxxxxxxxxxxx>"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c new file mode 100644 index 000000000000..90fc79b5666d --- /dev/null +++ b/sound/soc/codecs/cs35l56.c @@ -0,0 +1,1461 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Driver for Cirrus Logic CS35L56 smart amp +// +// Copyright (C) 2023 Cirrus Logic, Inc. and +// Cirrus Logic International Semiconductor Ltd. + +#include <linux/acpi.h> +#include <linux/completion.h> +#include <linux/debugfs.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/gpio/consumer.h> +#include <linux/math.h> +#include <linux/module.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <linux/regulator/consumer.h> +#include <linux/slab.h> +#include <linux/soundwire/sdw.h> +#include <linux/types.h> +#include <linux/workqueue.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/tlv.h> + +#include "wm_adsp.h" +#include "cs35l56.h" + +static int cs35l56_dsp_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event); + +static int cs35l56_wait_dsp_ready(struct cs35l56_private *cs35l56) +{ + int ret; + + if (!cs35l56->fw_patched) { + /* block until firmware download completes */ + ret = wait_for_completion_timeout(&cs35l56->dsp_ready_completion, + msecs_to_jiffies(25000)); + if (!ret) { + dev_err(cs35l56->dev, "dsp_ready_completion timeout\n"); + return -ETIMEDOUT; + } + } + + return 0; +} + +static int cs35l56_dspwait_get_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); + int ret = cs35l56_wait_dsp_ready(cs35l56); + + if (ret) + return ret; + + return snd_soc_get_volsw(kcontrol, ucontrol); +} + +static int cs35l56_dspwait_put_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); + int ret = cs35l56_wait_dsp_ready(cs35l56); + + if (ret) + return ret; + + return snd_soc_put_volsw(kcontrol, ucontrol); +} + +static DECLARE_TLV_DB_SCALE(vol_tlv, -10000, 25, 0); + +static const struct snd_kcontrol_new cs35l56_controls[] = { + SOC_SINGLE_EXT("Speaker Switch", + CS35L56_MAIN_RENDER_USER_MUTE, 0, 1, 1, + cs35l56_dspwait_get_volsw, cs35l56_dspwait_put_volsw), + SOC_SINGLE_S_EXT_TLV("Speaker Volume", + CS35L56_MAIN_RENDER_USER_VOLUME, + 6, -400, 400, 9, 0, + cs35l56_dspwait_get_volsw, + cs35l56_dspwait_put_volsw, + vol_tlv), + SOC_SINGLE_EXT("Posture Number", CS35L56_MAIN_POSTURE_NUMBER, + 0, 255, 0, + cs35l56_dspwait_get_volsw, cs35l56_dspwait_put_volsw), +}; + +static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_asp1tx1_enum, + CS35L56_ASP1TX1_INPUT, + 0, CS35L56_ASP_TXn_SRC_MASK, + cs35l56_tx_input_texts, + cs35l56_tx_input_values); + +static const struct snd_kcontrol_new asp1_tx1_mux = + SOC_DAPM_ENUM("ASP1TX1 SRC", cs35l56_asp1tx1_enum); + +static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_asp1tx2_enum, + CS35L56_ASP1TX2_INPUT, + 0, CS35L56_ASP_TXn_SRC_MASK, + cs35l56_tx_input_texts, + cs35l56_tx_input_values); + +static const struct snd_kcontrol_new asp1_tx2_mux = + SOC_DAPM_ENUM("ASP1TX2 SRC", cs35l56_asp1tx2_enum); + +static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_asp1tx3_enum, + CS35L56_ASP1TX3_INPUT, + 0, CS35L56_ASP_TXn_SRC_MASK, + cs35l56_tx_input_texts, + cs35l56_tx_input_values); + +static const struct snd_kcontrol_new asp1_tx3_mux = + SOC_DAPM_ENUM("ASP1TX3 SRC", cs35l56_asp1tx3_enum); + +static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_asp1tx4_enum, + CS35L56_ASP1TX4_INPUT, + 0, CS35L56_ASP_TXn_SRC_MASK, + cs35l56_tx_input_texts, + cs35l56_tx_input_values); + +static const struct snd_kcontrol_new asp1_tx4_mux = + SOC_DAPM_ENUM("ASP1TX4 SRC", cs35l56_asp1tx4_enum); + +static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_sdw1tx1_enum, + CS35L56_SWIRE_DP3_CH1_INPUT, + 0, CS35L56_SWIRETXn_SRC_MASK, + cs35l56_tx_input_texts, + cs35l56_tx_input_values); + +static const struct snd_kcontrol_new sdw1_tx1_mux = + SOC_DAPM_ENUM("SDW1TX1 SRC", cs35l56_sdw1tx1_enum); + +static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_sdw1tx2_enum, + CS35L56_SWIRE_DP3_CH2_INPUT, + 0, CS35L56_SWIRETXn_SRC_MASK, + cs35l56_tx_input_texts, + cs35l56_tx_input_values); + +static const struct snd_kcontrol_new sdw1_tx2_mux = + SOC_DAPM_ENUM("SDW1TX2 SRC", cs35l56_sdw1tx2_enum); + +static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_sdw1tx3_enum, + CS35L56_SWIRE_DP3_CH3_INPUT, + 0, CS35L56_SWIRETXn_SRC_MASK, + cs35l56_tx_input_texts, + cs35l56_tx_input_values); + +static const struct snd_kcontrol_new sdw1_tx3_mux = + SOC_DAPM_ENUM("SDW1TX3 SRC", cs35l56_sdw1tx3_enum); + +static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_sdw1tx4_enum, + CS35L56_SWIRE_DP3_CH4_INPUT, + 0, CS35L56_SWIRETXn_SRC_MASK, + cs35l56_tx_input_texts, + cs35l56_tx_input_values); + +static const struct snd_kcontrol_new sdw1_tx4_mux = + SOC_DAPM_ENUM("SDW1TX4 SRC", cs35l56_sdw1tx4_enum); + +static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_sdw1tx5_enum, + CS35L56_SWIRE_DP3_CH5_INPUT, + 0, CS35L56_SWIRETXn_SRC_MASK, + cs35l56_tx_input_texts, + cs35l56_tx_input_values); + +static const struct snd_kcontrol_new sdw1_tx5_mux = + SOC_DAPM_ENUM("SDW1TX5 SRC", cs35l56_sdw1tx5_enum); + +static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_sdw1tx6_enum, + CS35L56_SWIRE_DP3_CH6_INPUT, + 0, CS35L56_SWIRETXn_SRC_MASK, + cs35l56_tx_input_texts, + cs35l56_tx_input_values); + +static const struct snd_kcontrol_new sdw1_tx6_mux = + SOC_DAPM_ENUM("SDW1TX6 SRC", cs35l56_sdw1tx6_enum); + +static const struct snd_soc_dapm_widget cs35l56_dapm_widgets[] = { + SND_SOC_DAPM_REGULATOR_SUPPLY("VDD_B", 0, 0), + SND_SOC_DAPM_REGULATOR_SUPPLY("VDD_AMP", 0, 0), + + SND_SOC_DAPM_OUT_DRV("AMP", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_OUTPUT("SPK"), + + SND_SOC_DAPM_PGA_E("DSP1", SND_SOC_NOPM, 0, 0, NULL, 0, cs35l56_dsp_event, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), + + SND_SOC_DAPM_AIF_IN("ASP1RX1", NULL, 0, CS35L56_ASP1_ENABLES1, + CS35L56_ASP_RX1_EN_SHIFT, 0), + SND_SOC_DAPM_AIF_IN("ASP1RX2", NULL, 1, CS35L56_ASP1_ENABLES1, + CS35L56_ASP_RX2_EN_SHIFT, 0), + SND_SOC_DAPM_AIF_OUT("ASP1TX1", NULL, 0, CS35L56_ASP1_ENABLES1, + CS35L56_ASP_TX1_EN_SHIFT, 0), + SND_SOC_DAPM_AIF_OUT("ASP1TX2", NULL, 1, CS35L56_ASP1_ENABLES1, + CS35L56_ASP_TX2_EN_SHIFT, 0), + SND_SOC_DAPM_AIF_OUT("ASP1TX3", NULL, 2, CS35L56_ASP1_ENABLES1, + CS35L56_ASP_TX3_EN_SHIFT, 0), + SND_SOC_DAPM_AIF_OUT("ASP1TX4", NULL, 3, CS35L56_ASP1_ENABLES1, + CS35L56_ASP_TX4_EN_SHIFT, 0), + + SND_SOC_DAPM_MUX("ASP1 TX1 Source", SND_SOC_NOPM, 0, 0, &asp1_tx1_mux), + SND_SOC_DAPM_MUX("ASP1 TX2 Source", SND_SOC_NOPM, 0, 0, &asp1_tx2_mux), + SND_SOC_DAPM_MUX("ASP1 TX3 Source", SND_SOC_NOPM, 0, 0, &asp1_tx3_mux), + SND_SOC_DAPM_MUX("ASP1 TX4 Source", SND_SOC_NOPM, 0, 0, &asp1_tx4_mux), + + SND_SOC_DAPM_MUX("SDW1 TX1 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx1_mux), + SND_SOC_DAPM_MUX("SDW1 TX2 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx2_mux), + SND_SOC_DAPM_MUX("SDW1 TX3 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx3_mux), + SND_SOC_DAPM_MUX("SDW1 TX4 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx4_mux), + SND_SOC_DAPM_MUX("SDW1 TX5 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx5_mux), + SND_SOC_DAPM_MUX("SDW1 TX6 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx6_mux), + + SND_SOC_DAPM_SIGGEN("VMON ADC"), + SND_SOC_DAPM_SIGGEN("IMON ADC"), + SND_SOC_DAPM_SIGGEN("ERRVOL ADC"), + SND_SOC_DAPM_SIGGEN("CLASSH ADC"), + SND_SOC_DAPM_SIGGEN("VDDBMON ADC"), + SND_SOC_DAPM_SIGGEN("VBSTMON ADC"), + SND_SOC_DAPM_SIGGEN("TEMPMON ADC"), +}; + +#define CS35L56_SRC_ROUTE(name) \ + { name" Source", "ASP1RX1", "ASP1RX1" }, \ + { name" Source", "ASP1RX2", "ASP1RX2" }, \ + { name" Source", "VMON", "VMON ADC" }, \ + { name" Source", "IMON", "IMON ADC" }, \ + { name" Source", "ERRVOL", "ERRVOL ADC" }, \ + { name" Source", "CLASSH", "CLASSH ADC" }, \ + { name" Source", "VDDBMON", "VDDBMON ADC" }, \ + { name" Source", "VBSTMON", "VBSTMON ADC" }, \ + { name" Source", "DSP1TX1", "DSP1" }, \ + { name" Source", "DSP1TX2", "DSP1" }, \ + { name" Source", "DSP1TX3", "DSP1" }, \ + { name" Source", "DSP1TX4", "DSP1" }, \ + { name" Source", "DSP1TX5", "DSP1" }, \ + { name" Source", "DSP1TX6", "DSP1" }, \ + { name" Source", "DSP1TX7", "DSP1" }, \ + { name" Source", "DSP1TX8", "DSP1" }, \ + { name" Source", "TEMPMON", "TEMPMON ADC" }, \ + { name" Source", "INTERPOLATOR", "AMP" }, \ + { name" Source", "SDW1RX1", "SDW1 Playback" }, \ + { name" Source", "SDW1RX2", "SDW1 Playback" }, + +static const struct snd_soc_dapm_route cs35l56_audio_map[] = { + { "AMP", NULL, "VDD_B" }, + { "AMP", NULL, "VDD_AMP" }, + + { "ASP1RX1", NULL, "ASP1 Playback" }, + { "ASP1RX2", NULL, "ASP1 Playback" }, + { "DSP1", NULL, "ASP1RX1" }, + { "DSP1", NULL, "ASP1RX2" }, + { "DSP1", NULL, "SDW1 Playback" }, + { "AMP", NULL, "DSP1" }, + { "SPK", NULL, "AMP" }, + + CS35L56_SRC_ROUTE("ASP1 TX1") + CS35L56_SRC_ROUTE("ASP1 TX2") + CS35L56_SRC_ROUTE("ASP1 TX3") + CS35L56_SRC_ROUTE("ASP1 TX4") + + { "ASP1TX1", NULL, "ASP1 TX1 Source" }, + { "ASP1TX2", NULL, "ASP1 TX2 Source" }, + { "ASP1TX3", NULL, "ASP1 TX3 Source" }, + { "ASP1TX4", NULL, "ASP1 TX4 Source" }, + { "ASP1 Capture", NULL, "ASP1TX1" }, + { "ASP1 Capture", NULL, "ASP1TX2" }, + { "ASP1 Capture", NULL, "ASP1TX3" }, + { "ASP1 Capture", NULL, "ASP1TX4" }, + + CS35L56_SRC_ROUTE("SDW1 TX1") + CS35L56_SRC_ROUTE("SDW1 TX2") + CS35L56_SRC_ROUTE("SDW1 TX3") + CS35L56_SRC_ROUTE("SDW1 TX4") + CS35L56_SRC_ROUTE("SDW1 TX5") + CS35L56_SRC_ROUTE("SDW1 TX6") + { "SDW1 Capture", NULL, "SDW1 TX1 Source" }, + { "SDW1 Capture", NULL, "SDW1 TX2 Source" }, + { "SDW1 Capture", NULL, "SDW1 TX3 Source" }, + { "SDW1 Capture", NULL, "SDW1 TX4 Source" }, + { "SDW1 Capture", NULL, "SDW1 TX5 Source" }, + { "SDW1 Capture", NULL, "SDW1 TX6 Source" }, +}; + +static int cs35l56_mbox_send(struct cs35l56_private *cs35l56, unsigned int command) +{ + unsigned int val; + int ret; + + regmap_write(cs35l56->regmap, CS35L56_DSP_VIRTUAL1_MBOX_1, command); + ret = regmap_read_poll_timeout(cs35l56->regmap, CS35L56_DSP_VIRTUAL1_MBOX_1, + val, (val == 0), + CS35L56_MBOX_POLL_US, CS35L56_MBOX_TIMEOUT_US); + if (ret) { + dev_warn(cs35l56->dev, "MBOX command %#x failed: %d\n", command, ret); + return ret; + } + + return 0; +} + +static int cs35l56_dsp_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); + struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); + + dev_dbg(cs35l56->dev, "%s: %d\n", __func__, event); + + return wm_adsp_event(w, kcontrol, event); +} + +irqreturn_t cs35l56_irq(int irq, void *data) +{ + struct cs35l56_private *cs35l56 = data; + unsigned int status1 = 0, status8 = 0, status20 = 0; + unsigned int mask1, mask8, mask20; + unsigned int rv, val; + irqreturn_t ret = IRQ_NONE; + + if (!cs35l56->init_done) + return IRQ_NONE; + + mutex_lock(&cs35l56->irq_lock); + + rv = pm_runtime_resume_and_get(cs35l56->dev); + if (rv < 0) { + dev_err(cs35l56->dev, "irq: failed to get pm_runtime: %d\n", rv); + goto err_unlock; + } + + regmap_read(cs35l56->regmap, CS35L56_IRQ1_STATUS, &val); + if ((val & CS35L56_IRQ1_STS_MASK) == 0) { + dev_dbg(cs35l56->dev, "Spurious IRQ: no pending interrupt\n"); + goto err; + } + + /* Ack interrupts */ + regmap_read(cs35l56->regmap, CS35L56_IRQ1_EINT_1, &status1); + regmap_read(cs35l56->regmap, CS35L56_IRQ1_MASK_1, &mask1); + status1 &= ~mask1; + regmap_write(cs35l56->regmap, CS35L56_IRQ1_EINT_1, status1); + + regmap_read(cs35l56->regmap, CS35L56_IRQ1_EINT_8, &status8); + regmap_read(cs35l56->regmap, CS35L56_IRQ1_MASK_8, &mask8); + status8 &= ~mask8; + regmap_write(cs35l56->regmap, CS35L56_IRQ1_EINT_8, status8); + + regmap_read(cs35l56->regmap, CS35L56_IRQ1_EINT_20, &status20); + regmap_read(cs35l56->regmap, CS35L56_IRQ1_MASK_20, &mask20); + status20 &= ~mask20; + /* We don't want EINT20 but they default to unmasked: force mask */ + regmap_write(cs35l56->regmap, CS35L56_IRQ1_MASK_20, 0xffffffff); + + dev_dbg(cs35l56->dev, "%s: %#x %#x\n", __func__, status1, status8); + + /* Check to see if unmasked bits are active */ + if (!status1 && !status8 && !status20) + goto err; + + if (status1 & CS35L56_AMP_SHORT_ERR_EINT1_MASK) + dev_crit(cs35l56->dev, "Amp short error\n"); + + if (status8 & CS35L56_TEMP_ERR_EINT1_MASK) + dev_crit(cs35l56->dev, "Overtemp error\n"); + + ret = IRQ_HANDLED; + +err: + pm_runtime_put(cs35l56->dev); +err_unlock: + mutex_unlock(&cs35l56->irq_lock); + + return ret; +} +EXPORT_SYMBOL_NS_GPL(cs35l56_irq, SND_SOC_CS35L56_CORE); + +int cs35l56_irq_request(struct cs35l56_private *cs35l56) +{ + int ret; + + if (!cs35l56->irq) + return 0; + + ret = devm_request_threaded_irq(cs35l56->dev, cs35l56->irq, NULL, + cs35l56_irq, + IRQF_ONESHOT | IRQF_SHARED | IRQF_TRIGGER_LOW, + "cs35l56", cs35l56); + if (ret < 0) + dev_err(cs35l56->dev, "Failed to get IRQ: %d\n", ret); + + return ret; +} +EXPORT_SYMBOL_NS_GPL(cs35l56_irq_request, SND_SOC_CS35L56_CORE); + +static int cs35l56_asp_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) +{ + struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(codec_dai->component); + unsigned int val; + + dev_dbg(cs35l56->dev, "%s: %#x\n", __func__, fmt); + + switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { + case SND_SOC_DAIFMT_CBC_CFC: + break; + default: + dev_err(cs35l56->dev, "Unsupported clock source mode\n"); + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + val = CS35L56_ASP_FMT_DSP_A << CS35L56_ASP_FMT_SHIFT; + cs35l56->tdm_mode = true; + break; + case SND_SOC_DAIFMT_I2S: + val = CS35L56_ASP_FMT_I2S << CS35L56_ASP_FMT_SHIFT; + cs35l56->tdm_mode = false; + break; + default: + dev_err(cs35l56->dev, "Unsupported DAI format\n"); + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_IF: + val |= CS35L56_ASP_FSYNC_INV_MASK; + break; + case SND_SOC_DAIFMT_IB_NF: + val |= CS35L56_ASP_BCLK_INV_MASK; + break; + case SND_SOC_DAIFMT_IB_IF: + val |= CS35L56_ASP_BCLK_INV_MASK | CS35L56_ASP_FSYNC_INV_MASK; + break; + case SND_SOC_DAIFMT_NB_NF: + break; + default: + dev_err(cs35l56->dev, "Invalid clock invert\n"); + return -EINVAL; + } + + regmap_update_bits(cs35l56->regmap, + CS35L56_ASP1_CONTROL2, + CS35L56_ASP_FMT_MASK | + CS35L56_ASP_BCLK_INV_MASK | CS35L56_ASP_FSYNC_INV_MASK, + val); + + /* Hi-Z DOUT in unused slots and when all TX are disabled */ + regmap_update_bits(cs35l56->regmap, CS35L56_ASP1_CONTROL3, + CS35L56_ASP1_DOUT_HIZ_CTRL_MASK, + CS35L56_ASP_UNUSED_HIZ_OFF_HIZ); + + return 0; +} + +static void cs35l56_set_asp_slot_positions(struct cs35l56_private *cs35l56, + unsigned int reg, unsigned long mask) +{ + unsigned int reg_val, channel_shift; + int bit_num; + + /* Init all slots to 63 */ + switch (reg) { + case CS35L56_ASP1_FRAME_CONTROL1: + reg_val = 0x3f3f3f3f; + break; + case CS35L56_ASP1_FRAME_CONTROL5: + reg_val = 0x3f3f3f; + break; + } + + /* Enable consecutive TX1..TXn for each of the slots set in mask */ + channel_shift = 0; + for_each_set_bit(bit_num, &mask, 32) { + reg_val &= ~(0x3f << channel_shift); + reg_val |= bit_num << channel_shift; + channel_shift += 8; + } + + regmap_write(cs35l56->regmap, reg, reg_val); +} + +static int cs35l56_asp_dai_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, + unsigned int rx_mask, int slots, int slot_width) +{ + struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(dai->component); + + if ((slots == 0) || (slot_width == 0)) { + dev_dbg(cs35l56->dev, "tdm config cleared\n"); + cs35l56->asp_slot_width = 0; + cs35l56->asp_slot_count = 0; + return 0; + } + + if (slot_width > (CS35L56_ASP_RX_WIDTH_MASK >> CS35L56_ASP_RX_WIDTH_SHIFT)) { + dev_err(cs35l56->dev, "tdm invalid slot width %d\n", slot_width); + return -EINVAL; + } + + /* More than 32 slots would give an unsupportable BCLK frequency */ + if (slots > 32) { + dev_err(cs35l56->dev, "tdm invalid slot count %d\n", slots); + return -EINVAL; + } + + cs35l56->asp_slot_width = (u8)slot_width; + cs35l56->asp_slot_count = (u8)slots; + + // Note: rx/tx is from point of view of the CPU end + if (tx_mask == 0) + tx_mask = 0x3; // ASPRX1/RX2 in slots 0 and 1 + + if (rx_mask == 0) + rx_mask = 0xf; // ASPTX1..TX4 in slots 0..3 + + cs35l56_set_asp_slot_positions(cs35l56, CS35L56_ASP1_FRAME_CONTROL1, rx_mask); + cs35l56_set_asp_slot_positions(cs35l56, CS35L56_ASP1_FRAME_CONTROL5, tx_mask); + + dev_dbg(cs35l56->dev, "tdm slot width: %u count: %u tx_mask: %#x rx_mask: %#x\n", + cs35l56->asp_slot_width, cs35l56->asp_slot_count, tx_mask, rx_mask); + + return 0; +} + +static int cs35l56_asp_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(dai->component); + unsigned int rate = params_rate(params); + u8 asp_width, asp_wl; + + asp_wl = params_width(params); + if (cs35l56->asp_slot_width) + asp_width = cs35l56->asp_slot_width; + else + asp_width = asp_wl; + + dev_dbg(cs35l56->dev, "%s: wl=%d, width=%d, rate=%d", __func__, asp_wl, asp_width, rate); + + if (!cs35l56->sysclk_set) { + unsigned int slots = cs35l56->asp_slot_count; + unsigned int bclk_freq; + int freq_id; + + if (slots == 0) { + slots = params_channels(params); + + /* I2S always has an even number of slots */ + if (!cs35l56->tdm_mode) + slots = round_up(slots, 2); + } + + bclk_freq = asp_width * slots * rate; + freq_id = cs35l56_get_bclk_freq_id(bclk_freq); + if (freq_id < 0) { + dev_err(cs35l56->dev, "%s: Invalid BCLK %u\n", __func__, bclk_freq); + return -EINVAL; + } + + regmap_update_bits(cs35l56->regmap, CS35L56_ASP1_CONTROL1, + CS35L56_ASP_BCLK_FREQ_MASK, + freq_id << CS35L56_ASP_BCLK_FREQ_SHIFT); + } + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + regmap_update_bits(cs35l56->regmap, CS35L56_ASP1_CONTROL2, + CS35L56_ASP_RX_WIDTH_MASK, asp_width << + CS35L56_ASP_RX_WIDTH_SHIFT); + regmap_update_bits(cs35l56->regmap, CS35L56_ASP1_DATA_CONTROL5, + CS35L56_ASP_RX_WL_MASK, asp_wl); + } else { + regmap_update_bits(cs35l56->regmap, CS35L56_ASP1_CONTROL2, + CS35L56_ASP_TX_WIDTH_MASK, asp_width << + CS35L56_ASP_TX_WIDTH_SHIFT); + regmap_update_bits(cs35l56->regmap, CS35L56_ASP1_DATA_CONTROL1, + CS35L56_ASP_TX_WL_MASK, asp_wl); + } + + return 0; +} + +static int cs35l56_asp_dai_set_sysclk(struct snd_soc_dai *dai, + int clk_id, unsigned int freq, int dir) +{ + struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(dai->component); + int freq_id; + + if (freq == 0) { + cs35l56->sysclk_set = false; + return 0; + } + + freq_id = cs35l56_get_bclk_freq_id(freq); + if (freq_id < 0) + return freq_id; + + regmap_update_bits(cs35l56->regmap, CS35L56_ASP1_CONTROL1, + CS35L56_ASP_BCLK_FREQ_MASK, + freq_id << CS35L56_ASP_BCLK_FREQ_SHIFT); + cs35l56->sysclk_set = true; + + return 0; +} + +static int cs35l56_mute_stream(struct snd_soc_dai *dai, int mute, int stream) +{ + struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(dai->component); + unsigned int val; + int ret; + + dev_dbg(cs35l56->dev, "%s: %d %s\n", __func__, stream, mute ? "mute" : "unmute"); + + if (stream != SNDRV_PCM_STREAM_PLAYBACK) + return 0; + + if (mute) { + ret = cs35l56_mbox_send(cs35l56, CS35L56_MBOX_CMD_AUDIO_PAUSE); + } else { + ret = cs35l56_mbox_send(cs35l56, CS35L56_MBOX_CMD_AUDIO_PLAY); + if (ret == 0) { + /* Wait for firmware to enter PS0 power state */ + ret = regmap_read_poll_timeout(cs35l56->regmap, + CS35L56_TRANSDUCER_ACTUAL_PS, + val, (val == CS35L56_PS0), + CS35L56_PS0_POLL_US, + CS35L56_PS0_TIMEOUT_US); + if (ret) + dev_err(cs35l56->dev, "PS0 wait failed: %d\n", ret); + ret = 0; + } + } + + return ret; +} + +static const struct snd_soc_dai_ops cs35l56_ops = { + .set_fmt = cs35l56_asp_dai_set_fmt, + .set_tdm_slot = cs35l56_asp_dai_set_tdm_slot, + .hw_params = cs35l56_asp_dai_hw_params, + .set_sysclk = cs35l56_asp_dai_set_sysclk, + .mute_stream = cs35l56_mute_stream, +}; + +static void cs35l56_sdw_dai_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + snd_soc_dai_set_dma_data(dai, substream, NULL); +} + +static int cs35l56_sdw_dai_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, + unsigned int rx_mask, int slots, int slot_width) +{ + struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(dai->component); + + /* rx/tx are from point of view of the CPU end so opposite to our rx/tx */ + cs35l56->rx_mask = tx_mask; + cs35l56->tx_mask = rx_mask; + + return 0; +} + +static int cs35l56_sdw_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(dai->component); + struct sdw_stream_runtime *sdw_stream = snd_soc_dai_get_dma_data(dai, substream); + struct sdw_stream_config sconfig; + struct sdw_port_config pconfig; + int ret; + + dev_dbg(cs35l56->dev, "%s: rate %d\n", __func__, params_rate(params)); + + if (!cs35l56->init_done) + return -ENODEV; + + if (!sdw_stream) + return -EINVAL; + + memset(&sconfig, 0, sizeof(sconfig)); + memset(&pconfig, 0, sizeof(pconfig)); + + sconfig.frame_rate = params_rate(params); + sconfig.bps = snd_pcm_format_width(params_format(params)); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + sconfig.direction = SDW_DATA_DIR_RX; + pconfig.num = CS35L56_SDW1_PLAYBACK_PORT; + pconfig.ch_mask = cs35l56->rx_mask; + } else { + sconfig.direction = SDW_DATA_DIR_TX; + pconfig.num = CS35L56_SDW1_CAPTURE_PORT; + pconfig.ch_mask = cs35l56->tx_mask; + } + + if (pconfig.ch_mask == 0) { + sconfig.ch_count = params_channels(params); + pconfig.ch_mask = GENMASK(sconfig.ch_count - 1, 0); + } else { + sconfig.ch_count = hweight32(pconfig.ch_mask); + } + + ret = sdw_stream_add_slave(cs35l56->sdw_peripheral, &sconfig, &pconfig, + 1, sdw_stream); + if (ret) { + dev_err(dai->dev, "Failed to add sdw stream: %d\n", ret); + return ret; + } + + return 0; +} + +static int cs35l56_sdw_dai_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(dai->component); + struct sdw_stream_runtime *sdw_stream = snd_soc_dai_get_dma_data(dai, substream); + + if (!cs35l56->sdw_peripheral) + return -EINVAL; + + sdw_stream_remove_slave(cs35l56->sdw_peripheral, sdw_stream); + + return 0; +} + +static int cs35l56_sdw_dai_set_stream(struct snd_soc_dai *dai, + void *sdw_stream, int direction) +{ + if (!sdw_stream) + return 0; + + snd_soc_dai_dma_data_set(dai, direction, sdw_stream); + + return 0; +} + +static const struct snd_soc_dai_ops cs35l56_sdw_dai_ops = { + .set_tdm_slot = cs35l56_sdw_dai_set_tdm_slot, + .shutdown = cs35l56_sdw_dai_shutdown, + .hw_params = cs35l56_sdw_dai_hw_params, + .hw_free = cs35l56_sdw_dai_hw_free, + .mute_stream = cs35l56_mute_stream, + .set_stream = cs35l56_sdw_dai_set_stream, +}; + +static struct snd_soc_dai_driver cs35l56_dai[] = { + { + .name = "cs35l56-asp1", + .id = 0, + .playback = { + .stream_name = "ASP1 Playback", + .channels_min = 1, + .channels_max = 2, + .rates = CS35L56_RATES, + .formats = CS35L56_RX_FORMATS, + }, + .capture = { + .stream_name = "ASP1 Capture", + .channels_min = 1, + .channels_max = 4, + .rates = CS35L56_RATES, + .formats = CS35L56_TX_FORMATS, + }, + .ops = &cs35l56_ops, + .symmetric_rate = 1, + .symmetric_sample_bits = 1, + }, + { + .name = "cs35l56-sdw1", + .id = 1, + .playback = { + .stream_name = "SDW1 Playback", + .channels_min = 1, + .channels_max = 2, + .rates = CS35L56_RATES, + .formats = CS35L56_RX_FORMATS, + }, + .capture = { + .stream_name = "SDW1 Capture", + .channels_min = 1, + .channels_max = 6, + .rates = CS35L56_RATES, + .formats = CS35L56_TX_FORMATS, + }, + .symmetric_rate = 1, + .ops = &cs35l56_sdw_dai_ops, + } +}; + +static int cs35l56_wait_for_firmware_boot(struct cs35l56_private *cs35l56) +{ + unsigned int reg; + unsigned int val; + int ret; + + if (cs35l56->rev < CS35L56_REVID_B0) + reg = CS35L56_DSP1_HALO_STATE_A1; + else + reg = CS35L56_DSP1_HALO_STATE; + + ret = regmap_read_poll_timeout(cs35l56->regmap, reg, + val, + (val < 0xFFFF) && (val >= CS35L56_HALO_STATE_BOOT_DONE), + CS35L56_HALO_STATE_POLL_US, + CS35L56_HALO_STATE_TIMEOUT_US); + + if ((ret < 0) && (ret != -ETIMEDOUT)) { + dev_err(cs35l56->dev, "Failed to read HALO_STATE: %d\n", ret); + return ret; + } + + if ((ret == -ETIMEDOUT) || (val != CS35L56_HALO_STATE_BOOT_DONE)) { + dev_err(cs35l56->dev, "Firmware boot fail: HALO_STATE=%#x\n", val); + return -EIO; + } + + return 0; +} + +static const struct reg_sequence cs35l56_system_reset_seq[] = { + REG_SEQ0(CS35L56_DSP_VIRTUAL1_MBOX_1, CS35L56_MBOX_CMD_SYSTEM_RESET), +}; + +static void cs35l56_system_reset(struct cs35l56_private *cs35l56) +{ + cs35l56->soft_resetting = true; + + /* + * Must enter cache-only first so there can't be any more register + * accesses other than the controlled system reset sequence below. + */ + regcache_cache_only(cs35l56->regmap, true); + regmap_multi_reg_write_bypassed(cs35l56->regmap, + cs35l56_system_reset_seq, + ARRAY_SIZE(cs35l56_system_reset_seq)); + + /* On SoundWire the registers won't be accessible until it re-enumerates. */ + if (cs35l56->sdw_peripheral) + return; + + usleep_range(CS35L56_CONTROL_PORT_READY_US, CS35L56_CONTROL_PORT_READY_US + 400); + regcache_cache_only(cs35l56->regmap, false); +} + +static void cs35l56_dsp_work(struct work_struct *work) +{ + struct cs35l56_private *cs35l56 = container_of(work, + struct cs35l56_private, + dsp_work); + unsigned int reg; + unsigned int val; + int ret = 0; + + if (!wait_for_completion_timeout(&cs35l56->init_completion, + msecs_to_jiffies(5000))) { + dev_err(cs35l56->dev, "%s: init_completion timed out\n", __func__); + goto complete; + } + + if (!cs35l56->init_done || cs35l56->removing) + goto complete; + + cs35l56->dsp.part = devm_kasprintf(cs35l56->dev, GFP_KERNEL, "cs35l56%s-%02x", + cs35l56->secured ? "s" : "", cs35l56->rev); + + if (!cs35l56->dsp.part) + goto complete; + + pm_runtime_get_sync(cs35l56->dev); + + /* + * Disable SoundWire interrupts to prevent race with IRQ work. + * Setting sdw_irq_no_unmask prevents the handler re-enabling + * the SoundWire interrupt. + */ + if (cs35l56->sdw_peripheral) { + cs35l56->sdw_irq_no_unmask = true; + cancel_work_sync(&cs35l56->sdw_irq_work); + sdw_write_no_pm(cs35l56->sdw_peripheral, CS35L56_SDW_GEN_INT_MASK_1, 0); + sdw_read_no_pm(cs35l56->sdw_peripheral, CS35L56_SDW_GEN_INT_STAT_1); + sdw_write_no_pm(cs35l56->sdw_peripheral, CS35L56_SDW_GEN_INT_STAT_1, 0xFF); + } + + ret = cs35l56_mbox_send(cs35l56, CS35L56_MBOX_CMD_SHUTDOWN); + if (ret) { + dev_dbg(cs35l56->dev, "%s: CS35L56_MBOX_CMD_SHUTDOWN ret %d\n", __func__, ret); + goto err; + } + + if (cs35l56->rev < CS35L56_REVID_B0) + reg = CS35L56_DSP1_PM_CUR_STATE_A1; + else + reg = CS35L56_DSP1_PM_CUR_STATE; + + ret = regmap_read_poll_timeout(cs35l56->regmap, reg, + val, (val == CS35L56_HALO_STATE_SHUTDOWN), + CS35L56_HALO_STATE_POLL_US, + CS35L56_HALO_STATE_TIMEOUT_US); + if (ret < 0) + dev_err(cs35l56->dev, "Failed to poll PM_CUR_STATE to 1 is %d (ret %d)\n", + val, ret); + + /* Use wm_adsp to load and apply the firmware patch and coefficient files */ + ret = wm_adsp_power_up(&cs35l56->dsp); + if (ret) { + dev_dbg(cs35l56->dev, "%s: wm_adsp_power_up ret %d\n", __func__, ret); + goto err; + } + + if (cs35l56->removing) + goto err; + + mutex_lock(&cs35l56->irq_lock); + + init_completion(&cs35l56->init_completion); + + cs35l56_system_reset(cs35l56); + + if (cs35l56->sdw_peripheral) { + /* + * The system-reset causes the CS35L56 to detach from the bus. + * Wait for the manager to re-enumerate the CS35L56 and + * cs35l56_init() to run again. + */ + if (!wait_for_completion_timeout(&cs35l56->init_completion, + msecs_to_jiffies(5000))) { + dev_err(cs35l56->dev, "%s: init_completion timed out (SDW)\n", __func__); + goto err_unlock; + } + } else if (cs35l56_init(cs35l56)) { + goto err_unlock; + } + + cs35l56->fw_patched = true; + +err_unlock: + mutex_unlock(&cs35l56->irq_lock); +err: + pm_runtime_mark_last_busy(cs35l56->dev); + pm_runtime_put_autosuspend(cs35l56->dev); + + /* Re-enable SoundWire interrupts */ + if (cs35l56->sdw_peripheral) { + cs35l56->sdw_irq_no_unmask = false; + sdw_write_no_pm(cs35l56->sdw_peripheral, CS35L56_SDW_GEN_INT_MASK_1, + CS35L56_SDW_INT_MASK_CODEC_IRQ); + } + +complete: + complete_all(&cs35l56->dsp_ready_completion); +} + +static int cs35l56_component_probe(struct snd_soc_component *component) +{ + struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); + struct dentry *debugfs_root = component->debugfs_root; + + BUILD_BUG_ON(ARRAY_SIZE(cs35l56_tx_input_texts) != ARRAY_SIZE(cs35l56_tx_input_values)); + + cs35l56->removing = false; + cs35l56->component = component; + wm_adsp2_component_probe(&cs35l56->dsp, component); + + debugfs_create_bool("init_done", 0444, debugfs_root, &cs35l56->init_done); + debugfs_create_bool("can_hibernate", 0444, debugfs_root, &cs35l56->can_hibernate); + debugfs_create_bool("fw_patched", 0444, debugfs_root, &cs35l56->fw_patched); + + queue_work(cs35l56->dsp_wq, &cs35l56->dsp_work); + + return 0; +} + +static void cs35l56_component_remove(struct snd_soc_component *component) +{ + struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); + + cs35l56->removing = true; + complete(&cs35l56->init_completion); + cancel_work_sync(&cs35l56->dsp_work); +} + +static int cs35l56_set_bias_level(struct snd_soc_component *component, + enum snd_soc_bias_level level) +{ + struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); + int ret = 0; + + switch (level) { + case SND_SOC_BIAS_STANDBY: + /* + * Wait for patching to complete when transitioning from + * BIAS_OFF to BIAS_STANDBY + */ + if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) + ret = cs35l56_wait_dsp_ready(cs35l56); + + break; + default: + break; + } + + return ret; +} + +static const struct snd_soc_component_driver soc_component_dev_cs35l56 = { + .probe = cs35l56_component_probe, + .remove = cs35l56_component_remove, + + .dapm_widgets = cs35l56_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(cs35l56_dapm_widgets), + .dapm_routes = cs35l56_audio_map, + .num_dapm_routes = ARRAY_SIZE(cs35l56_audio_map), + .controls = cs35l56_controls, + .num_controls = ARRAY_SIZE(cs35l56_controls), + + .set_bias_level = cs35l56_set_bias_level, +}; + +static const struct reg_sequence cs35l56_hibernate_seq[] = { + /* This must be the last register access */ + REG_SEQ0(CS35L56_DSP_VIRTUAL1_MBOX_1, CS35L56_MBOX_CMD_HIBERNATE_NOW), +}; + +static const struct reg_sequence cs35l56_hibernate_wake_seq[] = { + REG_SEQ0(CS35L56_DSP_VIRTUAL1_MBOX_1, CS35L56_MBOX_CMD_WAKEUP), +}; + +int cs35l56_runtime_suspend(struct device *dev) +{ + struct cs35l56_private *cs35l56 = dev_get_drvdata(dev); + unsigned int val; + int ret; + + if (!cs35l56->init_done) + return 0; + + /* Firmware must have entered a power-save state */ + ret = regmap_read_poll_timeout(cs35l56->regmap, + CS35L56_TRANSDUCER_ACTUAL_PS, + val, (val >= CS35L56_PS3), + CS35L56_PS3_POLL_US, + CS35L56_PS3_TIMEOUT_US); + if (ret) + dev_warn(cs35l56->dev, "PS3 wait failed: %d\n", ret); + + /* Clear BOOT_DONE so it can be used to detect a reboot */ + regmap_write(cs35l56->regmap, CS35L56_IRQ1_EINT_4, CS35L56_OTP_BOOT_DONE_MASK); + + if (!cs35l56->can_hibernate) { + regcache_cache_only(cs35l56->regmap, true); + dev_dbg(dev, "Suspended: no hibernate"); + + return 0; + } + + /* + * Enable auto-hibernate. If it is woken by some other wake source + * it will automatically return to hibernate. + */ + ret = cs35l56_mbox_send(cs35l56, CS35L56_MBOX_CMD_ALLOW_AUTO_HIBERNATE); + if (ret) + dev_warn(cs35l56->dev, "ALLOW_HIBERNATE failed: %d\n", ret); + + /* + * Must enter cache-only first so there can't be any more register + * accesses other than the controlled hibernate sequence below. + */ + regcache_cache_only(cs35l56->regmap, true); + + regmap_multi_reg_write_bypassed(cs35l56->regmap, + cs35l56_hibernate_seq, + ARRAY_SIZE(cs35l56_hibernate_seq)); + + dev_dbg(dev, "Suspended: hibernate"); + + return 0; +} +EXPORT_SYMBOL_NS_GPL(cs35l56_runtime_suspend, SND_SOC_CS35L56_CORE); + +static int __maybe_unused cs35l56_runtime_resume_i2c_spi(struct device *dev) +{ + struct cs35l56_private *cs35l56 = dev_get_drvdata(dev); + + if (!cs35l56->init_done) + return 0; + + return cs35l56_runtime_resume_common(cs35l56); +} + +int cs35l56_runtime_resume_common(struct cs35l56_private *cs35l56) +{ + unsigned int val; + int ret; + + if (!cs35l56->can_hibernate) { + regcache_cache_only(cs35l56->regmap, false); + goto out_sync; + } + + if (!cs35l56->sdw_peripheral) { + /* + * Dummy transaction to trigger I2C/SPI auto-wake. This will NAK on I2C. + * Must be done before releasing cache-only. + */ + regmap_multi_reg_write_bypassed(cs35l56->regmap, + cs35l56_hibernate_wake_seq, + ARRAY_SIZE(cs35l56_hibernate_wake_seq)); + + usleep_range(CS35L56_CONTROL_PORT_READY_US, + CS35L56_CONTROL_PORT_READY_US + 400); + } + + regcache_cache_only(cs35l56->regmap, false); + + ret = cs35l56_wait_for_firmware_boot(cs35l56); + if (ret) { + dev_err(cs35l56->dev, "Hibernate wake failed: %d\n", ret); + goto err; + } + + ret = cs35l56_mbox_send(cs35l56, CS35L56_MBOX_CMD_PREVENT_AUTO_HIBERNATE); + if (ret) + goto err; + +out_sync: + /* BOOT_DONE will be 1 if the amp reset */ + regmap_read(cs35l56->regmap, CS35L56_IRQ1_EINT_4, &val); + if (val & CS35L56_OTP_BOOT_DONE_MASK) { + dev_dbg(cs35l56->dev, "Registers reset in suspend\n"); + regcache_mark_dirty(cs35l56->regmap); + } + + regcache_sync(cs35l56->regmap); + + dev_dbg(cs35l56->dev, "Resumed"); + + return 0; + +err: + regmap_write(cs35l56->regmap, CS35L56_DSP_VIRTUAL1_MBOX_1, + CS35L56_MBOX_CMD_HIBERNATE_NOW); + + regcache_cache_only(cs35l56->regmap, true); + + return ret; +} +EXPORT_SYMBOL_NS_GPL(cs35l56_runtime_resume_common, SND_SOC_CS35L56_CORE); + +static int cs35l56_dsp_init(struct cs35l56_private *cs35l56) +{ + struct wm_adsp *dsp; + int ret; + + cs35l56->dsp_wq = create_singlethread_workqueue("cs35l56-dsp"); + if (!cs35l56->dsp_wq) + return -ENOMEM; + + INIT_WORK(&cs35l56->dsp_work, cs35l56_dsp_work); + init_completion(&cs35l56->dsp_ready_completion); + + dsp = &cs35l56->dsp; + dsp->part = "cs35l56"; + dsp->cs_dsp.num = 1; + dsp->cs_dsp.type = WMFW_HALO; + dsp->cs_dsp.rev = 0; + dsp->fw = 12; + dsp->cs_dsp.dev = cs35l56->dev; + dsp->cs_dsp.regmap = cs35l56->regmap; + dsp->cs_dsp.base = CS35L56_DSP1_CORE_BASE; + dsp->cs_dsp.base_sysinfo = CS35L56_DSP1_SYS_INFO_ID; + dsp->cs_dsp.mem = cs35l56_dsp1_regions; + dsp->cs_dsp.num_mems = ARRAY_SIZE(cs35l56_dsp1_regions); + dsp->cs_dsp.no_core_startstop = true; + dsp->wmfw_optional = true; + + dev_dbg(cs35l56->dev, "DSP system name: '%s'\n", dsp->system_name); + + ret = wm_halo_init(dsp); + if (ret != 0) { + dev_err(cs35l56->dev, "wm_halo_init failed\n"); + return ret; + } + + return 0; +} + +static int cs35l56_acpi_get_name(struct cs35l56_private *cs35l56) +{ + acpi_handle handle = ACPI_HANDLE(cs35l56->dev); + const char *sub; + + /* If there is no ACPI_HANDLE, there is no ACPI for this system, return 0 */ + if (!handle) + return 0; + + sub = acpi_get_subsystem_id(handle); + if (IS_ERR(sub)) { + /* If bad ACPI, return 0 and fallback to legacy firmware path, otherwise fail */ + if (PTR_ERR(sub) == -ENODATA) + return 0; + else + return PTR_ERR(sub); + } + + cs35l56->dsp.system_name = sub; + dev_dbg(cs35l56->dev, "Subsystem ID: %s\n", cs35l56->dsp.system_name); + + return 0; +} + +int cs35l56_common_probe(struct cs35l56_private *cs35l56) +{ + int ret; + + init_completion(&cs35l56->init_completion); + mutex_init(&cs35l56->irq_lock); + + dev_set_drvdata(cs35l56->dev, cs35l56); + + cs35l56_fill_supply_names(cs35l56->supplies); + ret = devm_regulator_bulk_get(cs35l56->dev, ARRAY_SIZE(cs35l56->supplies), + cs35l56->supplies); + if (ret != 0) + return dev_err_probe(cs35l56->dev, ret, "Failed to request supplies\n"); + + /* Reset could be controlled by the BIOS or shared by multiple amps */ + cs35l56->reset_gpio = devm_gpiod_get_optional(cs35l56->dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(cs35l56->reset_gpio)) { + ret = PTR_ERR(cs35l56->reset_gpio); + /* + * If RESET is shared the first amp to probe will grab the reset + * line and reset all the amps + */ + if (ret != -EBUSY) + return dev_err_probe(cs35l56->dev, ret, "Failed to get reset GPIO\n"); + + dev_info(cs35l56->dev, "Reset GPIO busy, assume shared reset\n"); + cs35l56->reset_gpio = NULL; + } + + ret = regulator_bulk_enable(ARRAY_SIZE(cs35l56->supplies), cs35l56->supplies); + if (ret != 0) + return dev_err_probe(cs35l56->dev, ret, "Failed to enable supplies\n"); + + if (cs35l56->reset_gpio) { + /* satisfy minimum reset pulse width spec */ + usleep_range(CS35L56_RESET_PULSE_MIN_US, + CS35L56_RESET_PULSE_MIN_US + 400); + gpiod_set_value_cansleep(cs35l56->reset_gpio, 1); + } + + ret = cs35l56_acpi_get_name(cs35l56); + if (ret != 0) + goto err; + + ret = cs35l56_dsp_init(cs35l56); + if (ret < 0) { + dev_err_probe(cs35l56->dev, ret, "DSP init failed\n"); + goto err; + } + + ret = devm_snd_soc_register_component(cs35l56->dev, + &soc_component_dev_cs35l56, + cs35l56_dai, ARRAY_SIZE(cs35l56_dai)); + if (ret < 0) { + dev_err_probe(cs35l56->dev, ret, "Register codec failed\n"); + goto err; + } + + return 0; + +err: + gpiod_set_value_cansleep(cs35l56->reset_gpio, 0); + regulator_bulk_disable(ARRAY_SIZE(cs35l56->supplies), cs35l56->supplies); + + return ret; +} +EXPORT_SYMBOL_NS_GPL(cs35l56_common_probe, SND_SOC_CS35L56_CORE); + +int cs35l56_init(struct cs35l56_private *cs35l56) +{ + int ret; + unsigned int devid, revid, otpid, secured; + + /* + * Check whether the actions associated with soft reset or one time + * init need to be performed. + */ + if (cs35l56->soft_resetting) + goto post_soft_reset; + + if (cs35l56->init_done) + return 0; + + pm_runtime_set_autosuspend_delay(cs35l56->dev, 100); + pm_runtime_use_autosuspend(cs35l56->dev); + pm_runtime_set_active(cs35l56->dev); + pm_runtime_enable(cs35l56->dev); + + /* + * If the system is not using a reset_gpio then issue a + * dummy read to force a wakeup. + */ + if (!cs35l56->reset_gpio) + regmap_read(cs35l56->regmap, CS35L56_DSP_VIRTUAL1_MBOX_1, &devid); + + /* Wait for control port to be ready (datasheet tIRS). */ + usleep_range(CS35L56_CONTROL_PORT_READY_US, + CS35L56_CONTROL_PORT_READY_US + 400); + + /* + * The HALO_STATE register is in different locations on Ax and B0 + * devices so the REVID needs to be determined before waiting for the + * firmware to boot. + */ + ret = regmap_read(cs35l56->regmap, CS35L56_REVID, &revid); + if (ret < 0) { + dev_err(cs35l56->dev, "Get Revision ID failed\n"); + return ret; + } + cs35l56->rev = revid & (CS35L56_AREVID_MASK | CS35L56_MTLREVID_MASK); + + ret = cs35l56_wait_for_firmware_boot(cs35l56); + if (ret) + return ret; + + ret = regmap_read(cs35l56->regmap, CS35L56_DEVID, &devid); + if (ret < 0) { + dev_err(cs35l56->dev, "Get Device ID failed\n"); + return ret; + } + devid &= CS35L56_DEVID_MASK; + + switch (devid) { + case 0x35A56: + break; + default: + dev_err(cs35l56->dev, "Unknown device %x\n", devid); + return ret; + } + + ret = regmap_read(cs35l56->regmap, CS35L56_DSP_RESTRICT_STS1, &secured); + if (ret) { + dev_err(cs35l56->dev, "Get Secure status failed\n"); + return ret; + } + + /* When any bus is restricted treat the device as secured */ + if (secured & CS35L56_RESTRICTED_MASK) + cs35l56->secured = true; + + ret = regmap_read(cs35l56->regmap, CS35L56_OTPID, &otpid); + if (ret < 0) { + dev_err(cs35l56->dev, "Get OTP ID failed\n"); + return ret; + } + + dev_info(cs35l56->dev, "Cirrus Logic CS35L56%s Rev %02X OTP%d\n", + cs35l56->secured ? "s" : "", cs35l56->rev, otpid); + + cs35l56_patch(cs35l56->dev, cs35l56->regmap, cs35l56->rev); + + /* Wake source interrupts default to unmasked, so mask them */ + regmap_write(cs35l56->regmap, CS35L56_IRQ1_MASK_20, 0xffffffff); + regmap_update_bits(cs35l56->regmap, CS35L56_IRQ1_MASK_1, + CS35L56_AMP_SHORT_ERR_EINT1_MASK, + 0); + regmap_update_bits(cs35l56->regmap, CS35L56_IRQ1_MASK_8, + CS35L56_TEMP_ERR_EINT1_MASK, + 0); + + if (!cs35l56->reset_gpio) { + dev_dbg(cs35l56->dev, "No reset gpio: using soft reset\n"); + cs35l56_system_reset(cs35l56); + if (cs35l56->sdw_peripheral) { + /* Keep alive while we wait for re-enumeration */ + pm_runtime_get_noresume(cs35l56->dev); + return 0; + } + } + +post_soft_reset: + if (cs35l56->soft_resetting) { + cs35l56->soft_resetting = false; + + /* Done re-enumerating after one-time init so release the keep-alive */ + if (cs35l56->sdw_peripheral && !cs35l56->init_done) + pm_runtime_put_noidle(cs35l56->dev); + + regcache_mark_dirty(cs35l56->regmap); + ret = cs35l56_wait_for_firmware_boot(cs35l56); + if (ret) + return ret; + + dev_dbg(cs35l56->dev, "Firmware rebooted after soft reset\n"); + } + + /* Disable auto-hibernate so that runtime_pm has control */ + ret = cs35l56_mbox_send(cs35l56, CS35L56_MBOX_CMD_PREVENT_AUTO_HIBERNATE); + if (ret) + return ret; + + /* Populate soft registers in the regmap cache */ + cs35l56_reread_firmware_registers(cs35l56->dev, cs35l56->regmap); + + /* Registers could be dirty after soft reset or SoundWire enumeration */ + regcache_sync(cs35l56->regmap); + + cs35l56->init_done = true; + complete(&cs35l56->init_completion); + + return 0; +} +EXPORT_SYMBOL_NS_GPL(cs35l56_init, SND_SOC_CS35L56_CORE); + +int cs35l56_remove(struct cs35l56_private *cs35l56) +{ + cs35l56->init_done = false; + + /* + * WAKE IRQs unmask if CS35L56 hibernates so free the handler to + * prevent it racing with remove(). + */ + if (cs35l56->irq) + devm_free_irq(cs35l56->dev, cs35l56->irq, cs35l56); + + flush_workqueue(cs35l56->dsp_wq); + destroy_workqueue(cs35l56->dsp_wq); + + pm_runtime_suspend(cs35l56->dev); + pm_runtime_disable(cs35l56->dev); + + regcache_cache_only(cs35l56->regmap, true); + + kfree(cs35l56->dsp.system_name); + + gpiod_set_value_cansleep(cs35l56->reset_gpio, 0); + regulator_bulk_disable(ARRAY_SIZE(cs35l56->supplies), cs35l56->supplies); + + return 0; +} +EXPORT_SYMBOL_NS_GPL(cs35l56_remove, SND_SOC_CS35L56_CORE); + +const struct dev_pm_ops cs35l56_pm_ops_i2c_spi = { + SET_RUNTIME_PM_OPS(cs35l56_runtime_suspend, cs35l56_runtime_resume_i2c_spi, NULL) +}; +EXPORT_SYMBOL_NS_GPL(cs35l56_pm_ops_i2c_spi, SND_SOC_CS35L56_CORE); + +MODULE_DESCRIPTION("ASoC CS35L56 driver"); +MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED); +MODULE_AUTHOR("Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>"); +MODULE_AUTHOR("Simon Trimmer <simont@xxxxxxxxxxxxxxxxxxxxx>"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/codecs/cs35l56.h b/sound/soc/codecs/cs35l56.h new file mode 100644 index 000000000000..efc4b99180f9 --- /dev/null +++ b/sound/soc/codecs/cs35l56.h @@ -0,0 +1,77 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Driver for Cirrus Logic CS35L56 smart amp + * + * Copyright (C) 2023 Cirrus Logic, Inc. and + * Cirrus Logic International Semiconductor Ltd. + */ + +#ifndef CS35L56_H +#define CS35L56_H + +#include <linux/completion.h> +#include <linux/regulator/consumer.h> +#include <linux/pm_runtime.h> +#include <linux/workqueue.h> +#include <sound/cs35l56.h> +#include "wm_adsp.h" + +#define CS35L56_SDW_GEN_INT_STAT_1 0xc0 +#define CS35L56_SDW_GEN_INT_MASK_1 0xc1 +#define CS35L56_SDW_INT_MASK_CODEC_IRQ BIT(0) + +#define CS35L56_SDW_INVALID_BUS_SCALE 0xf + +#define CS35L56_RX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE) +#define CS35L56_TX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE \ + | SNDRV_PCM_FMTBIT_S32_LE) + +#define CS35L56_RATES (SNDRV_PCM_RATE_48000) + +struct sdw_slave; + +struct cs35l56_private { + struct wm_adsp dsp; /* must be first member */ + struct work_struct dsp_work; + struct workqueue_struct *dsp_wq; + struct completion dsp_ready_completion; + struct mutex irq_lock; + struct snd_soc_component *component; + struct device *dev; + struct regmap *regmap; + struct regulator_bulk_data supplies[CS35L56_NUM_BULK_SUPPLIES]; + int irq; + struct sdw_slave *sdw_peripheral; + u8 rev; + struct work_struct sdw_irq_work; + bool secured; + bool sdw_irq_no_unmask; + bool soft_resetting; + bool init_done; + bool sdw_attached; + bool removing; + bool fw_patched; + bool can_hibernate; + struct completion init_completion; + struct gpio_desc *reset_gpio; + + u32 rx_mask; + u32 tx_mask; + u8 asp_slot_width; + u8 asp_slot_count; + bool tdm_mode; + bool sysclk_set; + u8 old_sdw_clock_scale; +}; + +extern const struct dev_pm_ops cs35l56_pm_ops_i2c_spi; + +int cs35l56_runtime_suspend(struct device *dev); +int cs35l56_runtime_resume_common(struct cs35l56_private *cs35l56); +irqreturn_t cs35l56_irq(int irq, void *data); +int cs35l56_irq_request(struct cs35l56_private *cs35l56); +int cs35l56_common_probe(struct cs35l56_private *cs35l56); +int cs35l56_init(struct cs35l56_private *cs35l56); +int cs35l56_remove(struct cs35l56_private *cs35l56); + +#endif /* ifndef CS35L56_H */ -- 2.30.2
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