diff options
Diffstat (limited to 'sound/hda/codecs/side-codecs/cs35l41_hda.c')
| -rw-r--r-- | sound/hda/codecs/side-codecs/cs35l41_hda.c | 2112 |
1 files changed, 2112 insertions, 0 deletions
diff --git a/sound/hda/codecs/side-codecs/cs35l41_hda.c b/sound/hda/codecs/side-codecs/cs35l41_hda.c new file mode 100644 index 000000000000..37f2cdc8ce82 --- /dev/null +++ b/sound/hda/codecs/side-codecs/cs35l41_hda.c @@ -0,0 +1,2112 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// CS35l41 ALSA HDA audio driver +// +// Copyright 2021 Cirrus Logic, Inc. +// +// Author: Lucas Tanure <tanureal@opensource.cirrus.com> + +#include <linux/acpi.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <sound/hda_codec.h> +#include <sound/soc.h> +#include <linux/pm_runtime.h> +#include <linux/spi/spi.h> +#include <linux/vmalloc.h> +#include "hda_local.h" +#include "hda_auto_parser.h" +#include "hda_jack.h" +#include "../generic.h" +#include "hda_component.h" +#include "cs35l41_hda.h" +#include "cs35l41_hda_property.h" + +#define CS35L41_PART "cs35l41" + +#define HALO_STATE_DSP_CTL_NAME "HALO_STATE" +#define HALO_STATE_DSP_CTL_TYPE 5 +#define HALO_STATE_DSP_CTL_ALG 262308 +#define CAL_R_DSP_CTL_NAME "CAL_R" +#define CAL_STATUS_DSP_CTL_NAME "CAL_STATUS" +#define CAL_CHECKSUM_DSP_CTL_NAME "CAL_CHECKSUM" +#define CAL_AMBIENT_DSP_CTL_NAME "CAL_AMBIENT" +#define CAL_DSP_CTL_TYPE 5 +#define CAL_DSP_CTL_ALG 205 +#define CS35L41_UUID "50d90cdc-3de4-4f18-b528-c7fe3b71f40d" +#define CS35L41_DSM_GET_MUTE 5 +#define CS35L41_NOTIFY_EVENT 0x91 +#define CS35L41_TUNING_SIG 0x109A4A35 + +enum cs35l41_tuning_param_types { + TUNING_PARAM_GAIN, +}; + +struct cs35l41_tuning_param_hdr { + __le32 tuning_index; + __le32 type; + __le32 size; +} __packed; + +struct cs35l41_tuning_param { + struct cs35l41_tuning_param_hdr hdr; + union { + __le32 gain; + }; +} __packed; + +struct cs35l41_tuning_params { + __le32 signature; + __le32 version; + __le32 size; + __le32 num_entries; + u8 data[]; +} __packed; + +/* Firmware calibration controls */ +static const struct cirrus_amp_cal_controls cs35l41_calibration_controls = { + .alg_id = CAL_DSP_CTL_ALG, + .mem_region = CAL_DSP_CTL_TYPE, + .ambient = CAL_AMBIENT_DSP_CTL_NAME, + .calr = CAL_R_DSP_CTL_NAME, + .status = CAL_STATUS_DSP_CTL_NAME, + .checksum = CAL_CHECKSUM_DSP_CTL_NAME, +}; + +enum cs35l41_hda_fw_id { + CS35L41_HDA_FW_SPK_PROT, + CS35L41_HDA_FW_SPK_CALI, + CS35L41_HDA_FW_SPK_DIAG, + CS35L41_HDA_FW_MISC, + CS35L41_HDA_NUM_FW +}; + +static const char * const cs35l41_hda_fw_ids[CS35L41_HDA_NUM_FW] = { + [CS35L41_HDA_FW_SPK_PROT] = "spk-prot", + [CS35L41_HDA_FW_SPK_CALI] = "spk-cali", + [CS35L41_HDA_FW_SPK_DIAG] = "spk-diag", + [CS35L41_HDA_FW_MISC] = "misc", +}; + +static bool firmware_autostart = 1; +module_param(firmware_autostart, bool, 0444); +MODULE_PARM_DESC(firmware_autostart, "Allow automatic firmware download on boot" + "(0=Disable, 1=Enable) (default=1); "); + +static const char channel_name[3] = { 'L', 'R', 'C' }; + +static const struct reg_sequence cs35l41_hda_config[] = { + { CS35L41_PLL_CLK_CTRL, 0x00000430 }, // 3072000Hz, BCLK Input, PLL_REFCLK_EN = 1 + { CS35L41_DSP_CLK_CTRL, 0x00000003 }, // DSP CLK EN + { CS35L41_GLOBAL_CLK_CTRL, 0x00000003 }, // GLOBAL_FS = 48 kHz + { CS35L41_SP_RATE_CTRL, 0x00000021 }, // ASP_BCLK_FREQ = 3.072 MHz + { CS35L41_SP_FORMAT, 0x20200200 }, // 32 bits RX/TX slots, I2S, clk consumer + { CS35L41_SP_TX_WL, 0x00000018 }, // 24 cycles/slot + { CS35L41_SP_RX_WL, 0x00000018 }, // 24 cycles/slot + { CS35L41_ASP_TX1_SRC, 0x00000018 }, // ASPTX1 SRC = VMON + { CS35L41_ASP_TX2_SRC, 0x00000019 }, // ASPTX2 SRC = IMON + { CS35L41_DSP1_RX3_SRC, 0x00000018 }, // DSP1RX3 SRC = VMON + { CS35L41_DSP1_RX4_SRC, 0x00000019 }, // DSP1RX4 SRC = IMON +}; + +static const struct reg_sequence cs35l41_hda_config_no_dsp[] = { + { CS35L41_SP_HIZ_CTRL, 0x00000002 }, // Hi-Z unused + { CS35L41_DAC_PCM1_SRC, 0x00000008 }, // DACPCM1_SRC = ASPRX1 + { CS35L41_ASP_TX3_SRC, 0x00000000 }, // ASPTX3 SRC = ZERO FILL + { CS35L41_ASP_TX4_SRC, 0x00000000 }, // ASPTX4 SRC = ZERO FILL + { CS35L41_DSP1_RX5_SRC, 0x00000020 }, // DSP1RX5 SRC = ERRVOL + { CS35L41_DSP1_RX6_SRC, 0x00000021 }, // DSP1RX6 SRC = CLASSH_TGT +}; + +static const struct reg_sequence cs35l41_hda_config_dsp[] = { + { CS35L41_SP_HIZ_CTRL, 0x00000003 }, // Hi-Z unused/disabled + { CS35L41_DAC_PCM1_SRC, 0x00000032 }, // DACPCM1_SRC = DSP1TX1 + { CS35L41_ASP_TX3_SRC, 0x00000028 }, // ASPTX3 SRC = VPMON + { CS35L41_ASP_TX4_SRC, 0x00000029 }, // ASPTX4 SRC = VBSTMON + { CS35L41_DSP1_RX6_SRC, 0x00000029 }, // DSP1RX6 SRC = VBSTMON +}; + +static const struct reg_sequence cs35l41_hda_unmute[] = { + { CS35L41_AMP_DIG_VOL_CTRL, 0x00008000 }, // AMP_HPF_PCM_EN = 1, AMP_VOL_PCM 0.0 dB + { CS35L41_AMP_GAIN_CTRL, 0x00000084 }, // AMP_GAIN_PCM 4.5 dB +}; + +static const struct reg_sequence cs35l41_hda_mute[] = { + { CS35L41_AMP_GAIN_CTRL, 0x00000000 }, // AMP_GAIN_PCM 0.5 dB + { CS35L41_AMP_DIG_VOL_CTRL, 0x0000A678 }, // AMP_HPF_PCM_EN = 1, AMP_VOL_PCM Mute +}; + +static const struct cs_dsp_client_ops client_ops = { + /* cs_dsp requires the client to provide this even if it is empty */ +}; + +static int cs35l41_request_tuning_param_file(struct cs35l41_hda *cs35l41, char *tuning_filename, + const struct firmware **firmware, char **filename, + const char *ssid) +{ + int ret = 0; + + /* Filename is the same as the tuning file with "cfg" suffix */ + *filename = kasprintf(GFP_KERNEL, "%scfg", tuning_filename); + if (*filename == NULL) + return -ENOMEM; + + ret = firmware_request_nowarn(firmware, *filename, cs35l41->dev); + if (ret != 0) { + dev_dbg(cs35l41->dev, "Failed to request '%s'\n", *filename); + kfree(*filename); + *filename = NULL; + } + + return ret; +} + +static int cs35l41_request_firmware_file(struct cs35l41_hda *cs35l41, + const struct firmware **firmware, char **filename, + const char *ssid, const char *amp_name, + int spkid, const char *filetype) +{ + const char * const dsp_name = cs35l41->cs_dsp.name; + char *s, c; + int ret = 0; + + if (spkid > -1 && ssid && amp_name) + *filename = kasprintf(GFP_KERNEL, "cirrus/%s-%s-%s-%s-spkid%d-%s.%s", CS35L41_PART, + dsp_name, cs35l41_hda_fw_ids[cs35l41->firmware_type], + ssid, spkid, amp_name, filetype); + else if (spkid > -1 && ssid) + *filename = kasprintf(GFP_KERNEL, "cirrus/%s-%s-%s-%s-spkid%d.%s", CS35L41_PART, + dsp_name, cs35l41_hda_fw_ids[cs35l41->firmware_type], + ssid, spkid, filetype); + else if (ssid && amp_name) + *filename = kasprintf(GFP_KERNEL, "cirrus/%s-%s-%s-%s-%s.%s", CS35L41_PART, + dsp_name, cs35l41_hda_fw_ids[cs35l41->firmware_type], + ssid, amp_name, filetype); + else if (ssid) + *filename = kasprintf(GFP_KERNEL, "cirrus/%s-%s-%s-%s.%s", CS35L41_PART, + dsp_name, cs35l41_hda_fw_ids[cs35l41->firmware_type], + ssid, filetype); + else + *filename = kasprintf(GFP_KERNEL, "cirrus/%s-%s-%s.%s", CS35L41_PART, + dsp_name, cs35l41_hda_fw_ids[cs35l41->firmware_type], + filetype); + + if (*filename == NULL) + return -ENOMEM; + + /* + * Make sure that filename is lower-case and any non alpha-numeric + * characters except full stop and '/' are replaced with hyphens. + */ + s = *filename; + while (*s) { + c = *s; + if (isalnum(c)) + *s = tolower(c); + else if (c != '.' && c != '/') + *s = '-'; + s++; + } + + ret = firmware_request_nowarn(firmware, *filename, cs35l41->dev); + if (ret != 0) { + dev_dbg(cs35l41->dev, "Failed to request '%s'\n", *filename); + kfree(*filename); + *filename = NULL; + } + + return ret; +} + +static int cs35l41_request_firmware_files_spkid(struct cs35l41_hda *cs35l41, + const struct firmware **wmfw_firmware, + char **wmfw_filename, + const struct firmware **coeff_firmware, + char **coeff_filename) +{ + int ret; + + /* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.wmfw */ + ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, + cs35l41->acpi_subsystem_id, cs35l41->amp_name, + cs35l41->speaker_id, "wmfw"); + if (!ret) { + /* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.bin */ + ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, + cs35l41->acpi_subsystem_id, cs35l41->amp_name, + cs35l41->speaker_id, "bin"); + if (ret) + goto coeff_err; + + return 0; + } + + /* try cirrus/part-dspN-fwtype-sub<-ampname>.wmfw */ + ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, + cs35l41->acpi_subsystem_id, + cs35l41->amp_name, -1, "wmfw"); + if (!ret) { + /* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.bin */ + ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, + cs35l41->acpi_subsystem_id, cs35l41->amp_name, + cs35l41->speaker_id, "bin"); + if (ret) + goto coeff_err; + + return 0; + } + + /* try cirrus/part-dspN-fwtype-sub<-spkidN>.wmfw */ + ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, + cs35l41->acpi_subsystem_id, + NULL, cs35l41->speaker_id, "wmfw"); + if (!ret) { + /* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.bin */ + ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, + cs35l41->acpi_subsystem_id, + cs35l41->amp_name, cs35l41->speaker_id, "bin"); + if (ret) + /* try cirrus/part-dspN-fwtype-sub<-spkidN>.bin */ + ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, + coeff_filename, + cs35l41->acpi_subsystem_id, NULL, + cs35l41->speaker_id, "bin"); + if (ret) + goto coeff_err; + + return 0; + } + + /* try cirrus/part-dspN-fwtype-sub.wmfw */ + ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, + cs35l41->acpi_subsystem_id, + NULL, -1, "wmfw"); + if (!ret) { + /* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.bin */ + ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, + cs35l41->acpi_subsystem_id, cs35l41->amp_name, + cs35l41->speaker_id, "bin"); + if (ret) + /* try cirrus/part-dspN-fwtype-sub<-spkidN>.bin */ + ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, + coeff_filename, + cs35l41->acpi_subsystem_id, NULL, + cs35l41->speaker_id, "bin"); + if (ret) + goto coeff_err; + } + + return ret; +coeff_err: + release_firmware(*wmfw_firmware); + kfree(*wmfw_filename); + return ret; +} + +static int cs35l41_fallback_firmware_file(struct cs35l41_hda *cs35l41, + const struct firmware **wmfw_firmware, + char **wmfw_filename, + const struct firmware **coeff_firmware, + char **coeff_filename) +{ + int ret; + + /* Handle fallback */ + dev_warn(cs35l41->dev, "Falling back to default firmware.\n"); + + /* fallback try cirrus/part-dspN-fwtype.wmfw */ + ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, + NULL, NULL, -1, "wmfw"); + if (ret) + goto err; + + /* fallback try cirrus/part-dspN-fwtype.bin */ + ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, + NULL, NULL, -1, "bin"); + if (ret) { + release_firmware(*wmfw_firmware); + kfree(*wmfw_filename); + goto err; + } + return 0; + +err: + dev_warn(cs35l41->dev, "Unable to find firmware and tuning\n"); + return ret; +} + +static int cs35l41_request_firmware_files(struct cs35l41_hda *cs35l41, + const struct firmware **wmfw_firmware, + char **wmfw_filename, + const struct firmware **coeff_firmware, + char **coeff_filename) +{ + int ret; + + if (cs35l41->speaker_id > -1) { + ret = cs35l41_request_firmware_files_spkid(cs35l41, wmfw_firmware, wmfw_filename, + coeff_firmware, coeff_filename); + goto out; + } + + /* try cirrus/part-dspN-fwtype-sub<-ampname>.wmfw */ + ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, + cs35l41->acpi_subsystem_id, + cs35l41->amp_name, -1, "wmfw"); + if (!ret) { + /* try cirrus/part-dspN-fwtype-sub<-ampname>.bin */ + ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, + cs35l41->acpi_subsystem_id, cs35l41->amp_name, + -1, "bin"); + if (ret) + goto coeff_err; + + goto out; + } + + /* try cirrus/part-dspN-fwtype-sub.wmfw */ + ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, + cs35l41->acpi_subsystem_id, + NULL, -1, "wmfw"); + if (!ret) { + /* try cirrus/part-dspN-fwtype-sub<-ampname>.bin */ + ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, + cs35l41->acpi_subsystem_id, + cs35l41->amp_name, -1, "bin"); + if (ret) + /* try cirrus/part-dspN-fwtype-sub.bin */ + ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, + cs35l41->acpi_subsystem_id, NULL, -1, + "bin"); + if (ret) + goto coeff_err; + } + +out: + if (ret) + /* if all attempts at finding firmware fail, try fallback */ + goto fallback; + + return 0; + +coeff_err: + release_firmware(*wmfw_firmware); + kfree(*wmfw_filename); +fallback: + return cs35l41_fallback_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, + coeff_firmware, coeff_filename); +} + + +static void cs35l41_hda_apply_calibration(struct cs35l41_hda *cs35l41) +{ + int ret; + + if (!cs35l41->cal_data_valid) + return; + + ret = cs_amp_write_cal_coeffs(&cs35l41->cs_dsp, &cs35l41_calibration_controls, + &cs35l41->cal_data); + if (ret < 0) + dev_warn(cs35l41->dev, "Failed to apply calibration: %d\n", ret); + else + dev_info(cs35l41->dev, "Calibration applied: R0=%d\n", cs35l41->cal_data.calR); +} + +static int cs35l41_read_silicon_uid(struct cs35l41_hda *cs35l41, u64 *uid) +{ + u32 tmp; + int ret; + + ret = regmap_read(cs35l41->regmap, CS35L41_DIE_STS2, &tmp); + if (ret) { + dev_err(cs35l41->dev, "Cannot obtain CS35L41_DIE_STS2: %d\n", ret); + return ret; + } + + *uid = tmp; + *uid <<= 32; + + ret = regmap_read(cs35l41->regmap, CS35L41_DIE_STS1, &tmp); + if (ret) { + dev_err(cs35l41->dev, "Cannot obtain CS35L41_DIE_STS1: %d\n", ret); + return ret; + } + + *uid |= tmp; + + dev_dbg(cs35l41->dev, "UniqueID = %#llx\n", *uid); + + return 0; +} + +static int cs35l41_get_calibration(struct cs35l41_hda *cs35l41) +{ + u64 silicon_uid; + int ret; + + ret = cs35l41_read_silicon_uid(cs35l41, &silicon_uid); + if (ret < 0) + return ret; + + ret = cs_amp_get_efi_calibration_data(cs35l41->dev, silicon_uid, + cs35l41->index, + &cs35l41->cal_data); + + /* Only return an error status if probe should be aborted */ + if ((ret == -ENOENT) || (ret == -EOVERFLOW)) + return 0; + + if (ret < 0) + return ret; + + cs35l41->cal_data_valid = true; + + return 0; +} + + +static void cs35l41_set_default_tuning_params(struct cs35l41_hda *cs35l41) +{ + cs35l41->tuning_gain = DEFAULT_AMP_GAIN_PCM; +} + +static int cs35l41_read_tuning_params(struct cs35l41_hda *cs35l41, const struct firmware *firmware) +{ + struct cs35l41_tuning_params *params; + unsigned int offset = 0; + unsigned int end; + int i; + + params = (void *)&firmware->data[0]; + + if (le32_to_cpu(params->size) != firmware->size) { + dev_err(cs35l41->dev, "Wrong Size for Tuning Param file. Expected %d got %zu\n", + le32_to_cpu(params->size), firmware->size); + return -EINVAL; + } + + if (le32_to_cpu(params->version) != 1) { + dev_err(cs35l41->dev, "Unsupported Tuning Param Version: %d\n", + le32_to_cpu(params->version)); + return -EINVAL; + } + + if (le32_to_cpu(params->signature) != CS35L41_TUNING_SIG) { + dev_err(cs35l41->dev, + "Mismatched Signature for Tuning Param file. Expected %#x got %#x\n", + CS35L41_TUNING_SIG, le32_to_cpu(params->signature)); + return -EINVAL; + } + + end = firmware->size - sizeof(struct cs35l41_tuning_params); + + for (i = 0; i < le32_to_cpu(params->num_entries); i++) { + struct cs35l41_tuning_param *param; + + if ((offset >= end) || ((offset + sizeof(struct cs35l41_tuning_param_hdr)) >= end)) + return -EFAULT; + + param = (void *)¶ms->data[offset]; + offset += le32_to_cpu(param->hdr.size); + + if (offset > end) + return -EFAULT; + + switch (le32_to_cpu(param->hdr.type)) { + case TUNING_PARAM_GAIN: + cs35l41->tuning_gain = le32_to_cpu(param->gain); + dev_dbg(cs35l41->dev, "Applying Gain: %d\n", cs35l41->tuning_gain); + break; + default: + break; + } + } + + return 0; +} + +static int cs35l41_load_tuning_params(struct cs35l41_hda *cs35l41, char *tuning_filename) +{ + const struct firmware *tuning_param_file = NULL; + char *tuning_param_filename = NULL; + int ret; + + ret = cs35l41_request_tuning_param_file(cs35l41, tuning_filename, &tuning_param_file, + &tuning_param_filename, cs35l41->acpi_subsystem_id); + if (ret) { + dev_dbg(cs35l41->dev, "Missing Tuning Param for file: %s: %d\n", tuning_filename, + ret); + return 0; + } + + ret = cs35l41_read_tuning_params(cs35l41, tuning_param_file); + if (ret) { + dev_err(cs35l41->dev, "Error reading Tuning Params from file: %s: %d\n", + tuning_param_filename, ret); + /* Reset to default Tuning Parameters */ + cs35l41_set_default_tuning_params(cs35l41); + } + + release_firmware(tuning_param_file); + kfree(tuning_param_filename); + + return ret; +} + +static int cs35l41_init_dsp(struct cs35l41_hda *cs35l41) +{ + const struct firmware *coeff_firmware = NULL; + const struct firmware *wmfw_firmware = NULL; + struct cs_dsp *dsp = &cs35l41->cs_dsp; + char *coeff_filename = NULL; + char *wmfw_filename = NULL; + int ret; + + if (!cs35l41->halo_initialized) { + cs35l41_configure_cs_dsp(cs35l41->dev, cs35l41->regmap, dsp); + dsp->client_ops = &client_ops; + + ret = cs_dsp_halo_init(&cs35l41->cs_dsp); + if (ret) + return ret; + cs35l41->halo_initialized = true; + } + + cs35l41_set_default_tuning_params(cs35l41); + + ret = cs35l41_request_firmware_files(cs35l41, &wmfw_firmware, &wmfw_filename, + &coeff_firmware, &coeff_filename); + if (ret < 0) + return ret; + + dev_dbg(cs35l41->dev, "Loading WMFW Firmware: %s\n", wmfw_filename); + if (coeff_filename) { + dev_dbg(cs35l41->dev, "Loading Coefficient File: %s\n", coeff_filename); + ret = cs35l41_load_tuning_params(cs35l41, coeff_filename); + if (ret) + dev_warn(cs35l41->dev, "Unable to load Tuning Parameters: %d\n", ret); + } else { + dev_warn(cs35l41->dev, "No Coefficient File available.\n"); + } + + ret = cs_dsp_power_up(dsp, wmfw_firmware, wmfw_filename, coeff_firmware, coeff_filename, + cs35l41_hda_fw_ids[cs35l41->firmware_type]); + if (ret) + goto err; + + cs35l41_hda_apply_calibration(cs35l41); + +err: + if (ret) + cs35l41_set_default_tuning_params(cs35l41); + release_firmware(wmfw_firmware); + release_firmware(coeff_firmware); + kfree(wmfw_filename); + kfree(coeff_filename); + + return ret; +} + +static void cs35l41_shutdown_dsp(struct cs35l41_hda *cs35l41) +{ + struct cs_dsp *dsp = &cs35l41->cs_dsp; + + cs35l41_set_default_tuning_params(cs35l41); + cs_dsp_stop(dsp); + cs_dsp_power_down(dsp); + dev_dbg(cs35l41->dev, "Unloaded Firmware\n"); +} + +static void cs35l41_remove_dsp(struct cs35l41_hda *cs35l41) +{ + struct cs_dsp *dsp = &cs35l41->cs_dsp; + + cancel_work_sync(&cs35l41->fw_load_work); + + mutex_lock(&cs35l41->fw_mutex); + cs35l41_shutdown_dsp(cs35l41); + cs_dsp_remove(dsp); + cs35l41->halo_initialized = false; + mutex_unlock(&cs35l41->fw_mutex); +} + +/* Protection release cycle to get the speaker out of Safe-Mode */ +static void cs35l41_error_release(struct device *dev, struct regmap *regmap, unsigned int mask) +{ + regmap_write(regmap, CS35L41_PROTECT_REL_ERR_IGN, 0); + regmap_set_bits(regmap, CS35L41_PROTECT_REL_ERR_IGN, mask); + regmap_clear_bits(regmap, CS35L41_PROTECT_REL_ERR_IGN, mask); +} + +/* Clear all errors to release safe mode. Global Enable must be cleared first. */ +static void cs35l41_irq_release(struct cs35l41_hda *cs35l41) +{ + cs35l41_error_release(cs35l41->dev, cs35l41->regmap, cs35l41->irq_errors); + cs35l41->irq_errors = 0; +} + +static void cs35l41_update_mixer(struct cs35l41_hda *cs35l41) +{ + struct regmap *reg = cs35l41->regmap; + unsigned int asp_en = 0; + unsigned int dsp1rx2_src = 0; + + regmap_multi_reg_write(reg, cs35l41_hda_config, ARRAY_SIZE(cs35l41_hda_config)); + + if (cs35l41->cs_dsp.running) { + asp_en |= CS35L41_ASP_TX1_EN_MASK; // ASP_TX1_EN = 1 + regmap_multi_reg_write(reg, cs35l41_hda_config_dsp, + ARRAY_SIZE(cs35l41_hda_config_dsp)); + if (cs35l41->hw_cfg.bst_type == CS35L41_INT_BOOST) + regmap_write(reg, CS35L41_DSP1_RX5_SRC, CS35L41_INPUT_SRC_VPMON); + else + regmap_write(reg, CS35L41_DSP1_RX5_SRC, CS35L41_INPUT_SRC_VBSTMON); + } else { + regmap_multi_reg_write(reg, cs35l41_hda_config_no_dsp, + ARRAY_SIZE(cs35l41_hda_config_no_dsp)); + } + + if (cs35l41->hw_cfg.spk_pos == CS35L41_CENTER) { + asp_en |= CS35L41_ASP_RX2_EN_MASK; // ASP_RX2_EN = 1 + dsp1rx2_src = 0x00000009; // DSP1RX2 SRC = ASPRX2 + } else { + dsp1rx2_src = 0x00000008; // DSP1RX2 SRC = ASPRX1 + } + + asp_en |= CS35L41_ASP_RX1_EN_MASK; // ASP_RX1_EN = 1 + + regmap_write(reg, CS35L41_SP_ENABLES, asp_en); + regmap_write(reg, CS35L41_DSP1_RX1_SRC, 0x00000008); // DSP1RX1 SRC = ASPRX1 + regmap_write(reg, CS35L41_DSP1_RX2_SRC, dsp1rx2_src); +} + +static void cs35l41_hda_play_start(struct device *dev) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + struct regmap *reg = cs35l41->regmap; + + dev_dbg(dev, "Play (Start)\n"); + + if (cs35l41->playback_started) { + dev_dbg(dev, "Playback already started."); + return; + } + + cs35l41->playback_started = true; + + cs35l41_update_mixer(cs35l41); + + if (cs35l41->cs_dsp.running) { + regmap_update_bits(reg, CS35L41_PWR_CTRL2, + CS35L41_VMON_EN_MASK | CS35L41_IMON_EN_MASK, + 1 << CS35L41_VMON_EN_SHIFT | 1 << CS35L41_IMON_EN_SHIFT); + cs35l41_set_cspl_mbox_cmd(cs35l41->dev, reg, CSPL_MBOX_CMD_RESUME); + } + regmap_update_bits(reg, CS35L41_PWR_CTRL2, CS35L41_AMP_EN_MASK, 1 << CS35L41_AMP_EN_SHIFT); + if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST) + regmap_write(reg, CS35L41_GPIO1_CTRL1, 0x00008001); + +} + +static void cs35l41_mute(struct device *dev, bool mute) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + struct regmap *reg = cs35l41->regmap; + unsigned int amp_gain; + + dev_dbg(dev, "Mute(%d:%d) Playback Started: %d\n", mute, cs35l41->mute_override, + cs35l41->playback_started); + + if (cs35l41->playback_started) { + if (mute || cs35l41->mute_override) { + dev_dbg(dev, "Muting\n"); + regmap_multi_reg_write(reg, cs35l41_hda_mute, ARRAY_SIZE(cs35l41_hda_mute)); + } else { + dev_dbg(dev, "Unmuting\n"); + if (cs35l41->cs_dsp.running) { + dev_dbg(dev, "Using Tuned Gain: %d\n", cs35l41->tuning_gain); + amp_gain = (cs35l41->tuning_gain << CS35L41_AMP_GAIN_PCM_SHIFT) | + (DEFAULT_AMP_GAIN_PDM << CS35L41_AMP_GAIN_PDM_SHIFT); + + /* AMP_HPF_PCM_EN = 1, AMP_VOL_PCM 0.0 dB */ + regmap_write(reg, CS35L41_AMP_DIG_VOL_CTRL, 0x00008000); + regmap_write(reg, CS35L41_AMP_GAIN_CTRL, amp_gain); + } else { + regmap_multi_reg_write(reg, cs35l41_hda_unmute, + ARRAY_SIZE(cs35l41_hda_unmute)); + } + } + } +} + +static void cs35l41_hda_play_done(struct device *dev) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + struct regmap *reg = cs35l41->regmap; + + dev_dbg(dev, "Play (Complete)\n"); + + cs35l41_global_enable(dev, reg, cs35l41->hw_cfg.bst_type, 1, + &cs35l41->cs_dsp); + cs35l41_mute(dev, false); +} + +static void cs35l41_hda_pause_start(struct device *dev) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + struct regmap *reg = cs35l41->regmap; + + dev_dbg(dev, "Pause (Start)\n"); + + cs35l41_mute(dev, true); + cs35l41_global_enable(dev, reg, cs35l41->hw_cfg.bst_type, 0, + &cs35l41->cs_dsp); +} + +static void cs35l41_hda_pause_done(struct device *dev) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + struct regmap *reg = cs35l41->regmap; + + dev_dbg(dev, "Pause (Complete)\n"); + + regmap_update_bits(reg, CS35L41_PWR_CTRL2, CS35L41_AMP_EN_MASK, 0 << CS35L41_AMP_EN_SHIFT); + if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST) + regmap_write(reg, CS35L41_GPIO1_CTRL1, 0x00000001); + if (cs35l41->cs_dsp.running) { + cs35l41_set_cspl_mbox_cmd(dev, reg, CSPL_MBOX_CMD_PAUSE); + regmap_update_bits(reg, CS35L41_PWR_CTRL2, + CS35L41_VMON_EN_MASK | CS35L41_IMON_EN_MASK, + 0 << CS35L41_VMON_EN_SHIFT | 0 << CS35L41_IMON_EN_SHIFT); + } + cs35l41_irq_release(cs35l41); + cs35l41->playback_started = false; +} + +static void cs35l41_hda_pre_playback_hook(struct device *dev, int action) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + + switch (action) { + case HDA_GEN_PCM_ACT_CLEANUP: + mutex_lock(&cs35l41->fw_mutex); + cs35l41_hda_pause_start(dev); + mutex_unlock(&cs35l41->fw_mutex); + break; + default: + break; + } +} +static void cs35l41_hda_playback_hook(struct device *dev, int action) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + + switch (action) { + case HDA_GEN_PCM_ACT_OPEN: + /* + * All amps must be resumed before we can start playing back. + * This ensures, for external boost, that all amps are in AMP_SAFE mode. + * Do this in HDA_GEN_PCM_ACT_OPEN, since this is run prior to any of the + * other actions. + */ + pm_runtime_get_sync(dev); + break; + case HDA_GEN_PCM_ACT_PREPARE: + mutex_lock(&cs35l41->fw_mutex); + cs35l41_hda_play_start(dev); + mutex_unlock(&cs35l41->fw_mutex); + break; + case HDA_GEN_PCM_ACT_CLEANUP: + mutex_lock(&cs35l41->fw_mutex); + cs35l41_hda_pause_done(dev); + mutex_unlock(&cs35l41->fw_mutex); + break; + case HDA_GEN_PCM_ACT_CLOSE: + mutex_lock(&cs35l41->fw_mutex); + if (!cs35l41->cs_dsp.running && cs35l41->request_fw_load && + !cs35l41->fw_request_ongoing) { + dev_info(dev, "Requesting Firmware Load after HDA_GEN_PCM_ACT_CLOSE\n"); + cs35l41->fw_request_ongoing = true; + schedule_work(&cs35l41->fw_load_work); + } + mutex_unlock(&cs35l41->fw_mutex); + + /* + * Playback must be finished for all amps before we start runtime suspend. + * This ensures no amps are playing back when we start putting them to sleep. + */ + pm_runtime_put_autosuspend(dev); + break; + default: + break; + } +} + +static void cs35l41_hda_post_playback_hook(struct device *dev, int action) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + + switch (action) { + case HDA_GEN_PCM_ACT_PREPARE: + mutex_lock(&cs35l41->fw_mutex); + cs35l41_hda_play_done(dev); + mutex_unlock(&cs35l41->fw_mutex); + break; + default: + break; + } +} + +static int cs35l41_hda_channel_map(struct cs35l41_hda *cs35l41) +{ + unsigned int tx_num = 0; + unsigned int *tx_slot = NULL; + unsigned int rx_num; + unsigned int *rx_slot; + unsigned int mono = 0; + + if (!cs35l41->amp_name) { + if (cs35l41->hw_cfg.spk_pos >= ARRAY_SIZE(channel_name)) + return -EINVAL; + + cs35l41->amp_name = devm_kasprintf(cs35l41->dev, GFP_KERNEL, "%c%d", + channel_name[cs35l41->hw_cfg.spk_pos], + cs35l41->channel_index); + if (!cs35l41->amp_name) + return -ENOMEM; + } + + rx_num = 1; + if (cs35l41->hw_cfg.spk_pos == CS35L41_CENTER) + rx_slot = &mono; + else + rx_slot = &cs35l41->hw_cfg.spk_pos; + + return cs35l41_set_channels(cs35l41->dev, cs35l41->regmap, tx_num, tx_slot, rx_num, + rx_slot); +} + +static int cs35l41_verify_id(struct cs35l41_hda *cs35l41, unsigned int *regid, unsigned int *reg_revid) +{ + unsigned int mtl_revid, chipid; + int ret; + + ret = regmap_read(cs35l41->regmap, CS35L41_DEVID, regid); + if (ret) { + dev_err_probe(cs35l41->dev, ret, "Get Device ID failed\n"); + return ret; + } + + ret = regmap_read(cs35l41->regmap, CS35L41_REVID, reg_revid); + if (ret) { + dev_err_probe(cs35l41->dev, ret, "Get Revision ID failed\n"); + return ret; + } + + mtl_revid = *reg_revid & CS35L41_MTLREVID_MASK; + + chipid = (mtl_revid % 2) ? CS35L41R_CHIP_ID : CS35L41_CHIP_ID; + if (*regid != chipid) { + dev_err(cs35l41->dev, "CS35L41 Device ID (%X). Expected ID %X\n", *regid, chipid); + return -ENODEV; + } + + return 0; +} + +static int cs35l41_ready_for_reset(struct cs35l41_hda *cs35l41) +{ + mutex_lock(&cs35l41->fw_mutex); + if (cs35l41->cs_dsp.running) { + cs35l41->cs_dsp.running = false; + cs35l41->cs_dsp.booted = false; + } + regcache_mark_dirty(cs35l41->regmap); + mutex_unlock(&cs35l41->fw_mutex); + + return 0; +} + +static int cs35l41_system_suspend_prep(struct device *dev) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + + dev_dbg(cs35l41->dev, "System Suspend Prepare\n"); + + if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) { + dev_err_once(cs35l41->dev, "System Suspend not supported\n"); + return 0; /* don't block the whole system suspend */ + } + + mutex_lock(&cs35l41->fw_mutex); + if (cs35l41->playback_started) + cs35l41_hda_pause_start(dev); + mutex_unlock(&cs35l41->fw_mutex); + + return 0; +} + +static int cs35l41_system_suspend(struct device *dev) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + int ret; + + dev_dbg(cs35l41->dev, "System Suspend\n"); + + if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) { + dev_err_once(cs35l41->dev, "System Suspend not supported\n"); + return 0; /* don't block the whole system suspend */ + } + + mutex_lock(&cs35l41->fw_mutex); + if (cs35l41->playback_started) + cs35l41_hda_pause_done(dev); + mutex_unlock(&cs35l41->fw_mutex); + + ret = pm_runtime_force_suspend(dev); + if (ret) { + dev_err(dev, "System Suspend Failed, unable to runtime suspend: %d\n", ret); + return ret; + } + + /* Shutdown DSP before system suspend */ + ret = cs35l41_ready_for_reset(cs35l41); + if (ret) + dev_err(dev, "System Suspend Failed, not ready for Reset: %d\n", ret); + + if (cs35l41->reset_gpio) { + dev_info(cs35l41->dev, "Asserting Reset\n"); + gpiod_set_value_cansleep(cs35l41->reset_gpio, 0); + usleep_range(2000, 2100); + } + + dev_dbg(cs35l41->dev, "System Suspended\n"); + + return ret; +} + +static int cs35l41_wait_boot_done(struct cs35l41_hda *cs35l41) +{ + unsigned int int_status; + int ret; + + ret = regmap_read_poll_timeout(cs35l41->regmap, CS35L41_IRQ1_STATUS4, int_status, + int_status & CS35L41_OTP_BOOT_DONE, 1000, 100000); + if (ret) { + dev_err(cs35l41->dev, "Failed waiting for OTP_BOOT_DONE\n"); + return ret; + } + + ret = regmap_read(cs35l41->regmap, CS35L41_IRQ1_STATUS3, &int_status); + if (ret || (int_status & CS35L41_OTP_BOOT_ERR)) { + dev_err(cs35l41->dev, "OTP Boot status %x error\n", + int_status & CS35L41_OTP_BOOT_ERR); + if (!ret) + ret = -EIO; + return ret; + } + + return 0; +} + +static int cs35l41_system_resume(struct device *dev) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + int ret; + + dev_dbg(cs35l41->dev, "System Resume\n"); + + if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) { + dev_err_once(cs35l41->dev, "System Resume not supported\n"); + return 0; /* don't block the whole system resume */ + } + + if (cs35l41->reset_gpio) { + gpiod_set_value_cansleep(cs35l41->reset_gpio, 0); + usleep_range(2000, 2100); + gpiod_set_value_cansleep(cs35l41->reset_gpio, 1); + } + + usleep_range(2000, 2100); + + regcache_cache_only(cs35l41->regmap, false); + + regmap_write(cs35l41->regmap, CS35L41_SFT_RESET, CS35L41_SOFTWARE_RESET); + usleep_range(2000, 2100); + + ret = cs35l41_wait_boot_done(cs35l41); + if (ret) + return ret; + + regcache_cache_only(cs35l41->regmap, true); + + ret = pm_runtime_force_resume(dev); + if (ret) { + dev_err(dev, "System Resume Failed: Unable to runtime resume: %d\n", ret); + return ret; + } + + mutex_lock(&cs35l41->fw_mutex); + + if (cs35l41->request_fw_load && !cs35l41->fw_request_ongoing) { + cs35l41->fw_request_ongoing = true; + schedule_work(&cs35l41->fw_load_work); + } + mutex_unlock(&cs35l41->fw_mutex); + + return ret; +} + +static int cs35l41_runtime_idle(struct device *dev) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + + if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) + return -EBUSY; /* suspend not supported yet on this model */ + return 0; +} + +static int cs35l41_runtime_suspend(struct device *dev) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + int ret = 0; + + dev_dbg(cs35l41->dev, "Runtime Suspend\n"); + + if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) { + dev_dbg(cs35l41->dev, "Runtime Suspend not supported\n"); + return 0; + } + + mutex_lock(&cs35l41->fw_mutex); + + if (cs35l41->cs_dsp.running) { + ret = cs35l41_enter_hibernate(cs35l41->dev, cs35l41->regmap, + cs35l41->hw_cfg.bst_type); + if (ret) + goto err; + } else { + cs35l41_safe_reset(cs35l41->regmap, cs35l41->hw_cfg.bst_type); + } + + regcache_cache_only(cs35l41->regmap, true); + regcache_mark_dirty(cs35l41->regmap); + +err: + mutex_unlock(&cs35l41->fw_mutex); + + return ret; +} + +static int cs35l41_runtime_resume(struct device *dev) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + unsigned int regid, reg_revid; + int ret = 0; + + dev_dbg(cs35l41->dev, "Runtime Resume\n"); + + if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) { + dev_dbg(cs35l41->dev, "Runtime Resume not supported\n"); + return 0; + } + + mutex_lock(&cs35l41->fw_mutex); + + regcache_cache_only(cs35l41->regmap, false); + + if (cs35l41->cs_dsp.running) { + ret = cs35l41_exit_hibernate(cs35l41->dev, cs35l41->regmap); + if (ret) { + dev_warn(cs35l41->dev, "Unable to exit Hibernate."); + goto err; + } + } + + ret = cs35l41_verify_id(cs35l41, ®id, ®_revid); + if (ret) + goto err; + + /* Test key needs to be unlocked to allow the OTP settings to re-apply */ + cs35l41_test_key_unlock(cs35l41->dev, cs35l41->regmap); + ret = regcache_sync(cs35l41->regmap); + cs35l41_test_key_lock(cs35l41->dev, cs35l41->regmap); + if (ret) { + dev_err(cs35l41->dev, "Failed to restore register cache: %d\n", ret); + goto err; + } + + if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST) + cs35l41_init_boost(cs35l41->dev, cs35l41->regmap, &cs35l41->hw_cfg); + + dev_dbg(cs35l41->dev, "CS35L41 Resumed (%x), Revision: %02X\n", regid, reg_revid); + +err: + mutex_unlock(&cs35l41->fw_mutex); + + return ret; +} + +static int cs35l41_hda_read_ctl(struct cs_dsp *dsp, const char *name, int type, + unsigned int alg, void *buf, size_t len) +{ + int ret; + + mutex_lock(&dsp->pwr_lock); + ret = cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(dsp, name, type, alg), 0, buf, len); + mutex_unlock(&dsp->pwr_lock); + + return ret; +} + +static int cs35l41_smart_amp(struct cs35l41_hda *cs35l41) +{ + unsigned int fw_status; + __be32 halo_sts; + int ret; + + if (cs35l41->bypass_fw) { + dev_warn(cs35l41->dev, "Bypassing Firmware.\n"); + return 0; + } + + ret = cs35l41_init_dsp(cs35l41); + if (ret) { + dev_warn(cs35l41->dev, "Cannot Initialize Firmware. Error: %d\n", ret); + goto clean_dsp; + } + + ret = cs35l41_write_fs_errata(cs35l41->dev, cs35l41->regmap); + if (ret) { + dev_err(cs35l41->dev, "Cannot Write FS Errata: %d\n", ret); + goto clean_dsp; + } + + ret = cs_dsp_run(&cs35l41->cs_dsp); + if (ret) { + dev_err(cs35l41->dev, "Fail to start dsp: %d\n", ret); + goto clean_dsp; + } + + ret = read_poll_timeout(cs35l41_hda_read_ctl, ret, + be32_to_cpu(halo_sts) == HALO_STATE_CODE_RUN, + 1000, 15000, false, &cs35l41->cs_dsp, HALO_STATE_DSP_CTL_NAME, + HALO_STATE_DSP_CTL_TYPE, HALO_STATE_DSP_CTL_ALG, + &halo_sts, sizeof(halo_sts)); + + if (ret) { + dev_err(cs35l41->dev, "Timeout waiting for HALO Core to start. State: %u\n", + halo_sts); + goto clean_dsp; + } + + ret = regmap_read(cs35l41->regmap, CS35L41_DSP_MBOX_2, &fw_status); + if (ret < 0) { + dev_err(cs35l41->dev, + "Failed to read firmware status: %d\n", ret); + goto clean_dsp; + } + + switch (fw_status) { + case CSPL_MBOX_STS_RUNNING: + case CSPL_MBOX_STS_PAUSED: + break; + default: + dev_err(cs35l41->dev, "Firmware status is invalid: %u\n", + fw_status); + ret = -EINVAL; + goto clean_dsp; + } + + ret = cs35l41_set_cspl_mbox_cmd(cs35l41->dev, cs35l41->regmap, CSPL_MBOX_CMD_PAUSE); + if (ret) { + dev_err(cs35l41->dev, "Error waiting for DSP to pause: %u\n", ret); + goto clean_dsp; + } + + dev_info(cs35l41->dev, "Firmware Loaded - Type: %s, Gain: %d\n", + cs35l41_hda_fw_ids[cs35l41->firmware_type], cs35l41->tuning_gain); + + return 0; + +clean_dsp: + cs35l41_shutdown_dsp(cs35l41); + return ret; +} + +static void cs35l41_load_firmware(struct cs35l41_hda *cs35l41, bool load) +{ + if (cs35l41->cs_dsp.running && !load) { + dev_dbg(cs35l41->dev, "Unloading Firmware\n"); + cs35l41_shutdown_dsp(cs35l41); + } else if (!cs35l41->cs_dsp.running && load) { + dev_dbg(cs35l41->dev, "Loading Firmware\n"); + cs35l41_smart_amp(cs35l41); + } else { + dev_dbg(cs35l41->dev, "Unable to Load firmware.\n"); + } +} + +static int cs35l41_fw_load_ctl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct cs35l41_hda *cs35l41 = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = cs35l41->request_fw_load; + return 0; +} + +static int cs35l41_mute_override_ctl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct cs35l41_hda *cs35l41 = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = cs35l41->mute_override; + return 0; +} + +static void cs35l41_fw_load_work(struct work_struct *work) +{ + struct cs35l41_hda *cs35l41 = container_of(work, struct cs35l41_hda, fw_load_work); + + pm_runtime_get_sync(cs35l41->dev); + + mutex_lock(&cs35l41->fw_mutex); + + /* Recheck if playback is ongoing, mutex will block playback during firmware loading */ + if (cs35l41->playback_started) + dev_err(cs35l41->dev, "Cannot Load/Unload firmware during Playback. Retrying...\n"); + else + cs35l41_load_firmware(cs35l41, cs35l41->request_fw_load); + + cs35l41->fw_request_ongoing = false; + mutex_unlock(&cs35l41->fw_mutex); + + pm_runtime_put_autosuspend(cs35l41->dev); +} + +static int cs35l41_fw_load_ctl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct cs35l41_hda *cs35l41 = snd_kcontrol_chip(kcontrol); + + if (cs35l41->request_fw_load == ucontrol->value.integer.value[0]) + return 0; + + if (cs35l41->fw_request_ongoing) { + dev_dbg(cs35l41->dev, "Existing request not complete\n"); + return -EBUSY; + } + + /* Check if playback is ongoing when initial request is made */ + if (cs35l41->playback_started) { + dev_err(cs35l41->dev, "Cannot Load/Unload firmware during Playback\n"); + return -EBUSY; + } + + cs35l41->fw_request_ongoing = true; + cs35l41->request_fw_load = ucontrol->value.integer.value[0]; + schedule_work(&cs35l41->fw_load_work); + + return 1; +} + +static int cs35l41_fw_type_ctl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct cs35l41_hda *cs35l41 = snd_kcontrol_chip(kcontrol); + + ucontrol->value.enumerated.item[0] = cs35l41->firmware_type; + + return 0; +} + +static int cs35l41_fw_type_ctl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct cs35l41_hda *cs35l41 = snd_kcontrol_chip(kcontrol); + + if (ucontrol->value.enumerated.item[0] < CS35L41_HDA_NUM_FW) { + if (cs35l41->firmware_type != ucontrol->value.enumerated.item[0]) { + cs35l41->firmware_type = ucontrol->value.enumerated.item[0]; + return 1; + } else { + return 0; + } + } + + return -EINVAL; +} + +static int cs35l41_fw_type_ctl_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +{ + return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(cs35l41_hda_fw_ids), cs35l41_hda_fw_ids); +} + +static int cs35l41_create_controls(struct cs35l41_hda *cs35l41) +{ + char fw_type_ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + char fw_load_ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + char mute_override_ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + struct snd_kcontrol_new fw_type_ctl = { + .name = fw_type_ctl_name, + .iface = SNDRV_CTL_ELEM_IFACE_CARD, + .info = cs35l41_fw_type_ctl_info, + .get = cs35l41_fw_type_ctl_get, + .put = cs35l41_fw_type_ctl_put, + }; + struct snd_kcontrol_new fw_load_ctl = { + .name = fw_load_ctl_name, + .iface = SNDRV_CTL_ELEM_IFACE_CARD, + .info = snd_ctl_boolean_mono_info, + .get = cs35l41_fw_load_ctl_get, + .put = cs35l41_fw_load_ctl_put, + }; + struct snd_kcontrol_new mute_override_ctl = { + .name = mute_override_ctl_name, + .iface = SNDRV_CTL_ELEM_IFACE_CARD, + .info = snd_ctl_boolean_mono_info, + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .get = cs35l41_mute_override_ctl_get, + }; + int ret; + + scnprintf(fw_type_ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s DSP1 Firmware Type", + cs35l41->amp_name); + scnprintf(fw_load_ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s DSP1 Firmware Load", + cs35l41->amp_name); + scnprintf(mute_override_ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s Forced Mute Status", + cs35l41->amp_name); + + ret = snd_ctl_add(cs35l41->codec->card, snd_ctl_new1(&fw_type_ctl, cs35l41)); + if (ret) { + dev_err(cs35l41->dev, "Failed to add KControl %s = %d\n", fw_type_ctl.name, ret); + return ret; + } + + dev_dbg(cs35l41->dev, "Added Control %s\n", fw_type_ctl.name); + + ret = snd_ctl_add(cs35l41->codec->card, snd_ctl_new1(&fw_load_ctl, cs35l41)); + if (ret) { + dev_err(cs35l41->dev, "Failed to add KControl %s = %d\n", fw_load_ctl.name, ret); + return ret; + } + + dev_dbg(cs35l41->dev, "Added Control %s\n", fw_load_ctl.name); + + ret = snd_ctl_add(cs35l41->codec->card, snd_ctl_new1(&mute_override_ctl, cs35l41)); + if (ret) { + dev_err(cs35l41->dev, "Failed to add KControl %s = %d\n", mute_override_ctl.name, + ret); + return ret; + } + + dev_dbg(cs35l41->dev, "Added Control %s\n", mute_override_ctl.name); + + return 0; +} + +static bool cs35l41_dsm_supported(acpi_handle handle, unsigned int commands) +{ + guid_t guid; + + guid_parse(CS35L41_UUID, &guid); + + return acpi_check_dsm(handle, &guid, 0, BIT(commands)); +} + +static int cs35l41_get_acpi_mute_state(struct cs35l41_hda *cs35l41, acpi_handle handle) +{ + guid_t guid; + union acpi_object *ret; + int mute = -ENODEV; + + guid_parse(CS35L41_UUID, &guid); + + if (cs35l41_dsm_supported(handle, CS35L41_DSM_GET_MUTE)) { + ret = acpi_evaluate_dsm(handle, &guid, 0, CS35L41_DSM_GET_MUTE, NULL); + mute = *ret->buffer.pointer; + dev_dbg(cs35l41->dev, "CS35L41_DSM_GET_MUTE: %d\n", mute); + } + + dev_dbg(cs35l41->dev, "%s: %d\n", __func__, mute); + + return mute; +} + +static void cs35l41_acpi_device_notify(acpi_handle handle, u32 event, struct device *dev) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + int mute; + + if (event != CS35L41_NOTIFY_EVENT) + return; + + mute = cs35l41_get_acpi_mute_state(cs35l41, handle); + if (mute < 0) { + dev_warn(cs35l41->dev, "Unable to retrieve mute state: %d\n", mute); + return; + } + + dev_dbg(cs35l41->dev, "Requesting mute value: %d\n", mute); + cs35l41->mute_override = (mute > 0); + cs35l41_mute(cs35l41->dev, cs35l41->mute_override); +} + +static int cs35l41_hda_bind(struct device *dev, struct device *master, void *master_data) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + struct hda_component_parent *parent = master_data; + struct hda_component *comp; + unsigned int sleep_flags; + int ret = 0; + + comp = hda_component_from_index(parent, cs35l41->index); + if (!comp) + return -EINVAL; + + if (comp->dev) + return -EBUSY; + + pm_runtime_get_sync(dev); + + mutex_lock(&cs35l41->fw_mutex); + + comp->dev = dev; + cs35l41->codec = parent->codec; + if (!cs35l41->acpi_subsystem_id) + cs35l41->acpi_subsystem_id = kasprintf(GFP_KERNEL, "%.8x", + cs35l41->codec->core.subsystem_id); + + strscpy(comp->name, dev_name(dev), sizeof(comp->name)); + + cs35l41->firmware_type = CS35L41_HDA_FW_SPK_PROT; + + if (firmware_autostart) { + dev_dbg(cs35l41->dev, "Firmware Autostart.\n"); + cs35l41->request_fw_load = true; + if (cs35l41_smart_amp(cs35l41) < 0) + dev_warn(cs35l41->dev, "Cannot Run Firmware, reverting to dsp bypass...\n"); + } else { + dev_dbg(cs35l41->dev, "Firmware Autostart is disabled.\n"); + } + + ret = cs35l41_create_controls(cs35l41); + + comp->playback_hook = cs35l41_hda_playback_hook; + comp->pre_playback_hook = cs35l41_hda_pre_playback_hook; + comp->post_playback_hook = cs35l41_hda_post_playback_hook; + comp->acpi_notify = cs35l41_acpi_device_notify; + comp->adev = cs35l41->dacpi; + + comp->acpi_notifications_supported = cs35l41_dsm_supported(acpi_device_handle(comp->adev), + CS35L41_DSM_GET_MUTE); + + cs35l41->mute_override = cs35l41_get_acpi_mute_state(cs35l41, + acpi_device_handle(cs35l41->dacpi)) > 0; + + mutex_unlock(&cs35l41->fw_mutex); + + sleep_flags = lock_system_sleep(); + if (!device_link_add(&cs35l41->codec->core.dev, cs35l41->dev, DL_FLAG_STATELESS)) + dev_warn(dev, "Unable to create device link\n"); + unlock_system_sleep(sleep_flags); + + pm_runtime_put_autosuspend(dev); + + dev_info(cs35l41->dev, + "CS35L41 Bound - SSID: %s, BST: %d, VSPK: %d, CH: %c, FW EN: %d, SPKID: %d\n", + cs35l41->acpi_subsystem_id, cs35l41->hw_cfg.bst_type, + cs35l41->hw_cfg.gpio1.func == CS35l41_VSPK_SWITCH, + channel_name[cs35l41->hw_cfg.spk_pos], + cs35l41->cs_dsp.running, cs35l41->speaker_id); + + return ret; +} + +static void cs35l41_hda_unbind(struct device *dev, struct device *master, void *master_data) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + struct hda_component_parent *parent = master_data; + struct hda_component *comp; + unsigned int sleep_flags; + + comp = hda_component_from_index(parent, cs35l41->index); + if (!comp) + return; + + if (comp->dev == dev) { + sleep_flags = lock_system_sleep(); + device_link_remove(&cs35l41->codec->core.dev, cs35l41->dev); + unlock_system_sleep(sleep_flags); + memset(comp, 0, sizeof(*comp)); + } +} + +static const struct component_ops cs35l41_hda_comp_ops = { + .bind = cs35l41_hda_bind, + .unbind = cs35l41_hda_unbind, +}; + +static irqreturn_t cs35l41_bst_short_err(int irq, void *data) +{ + struct cs35l41_hda *cs35l41 = data; + + dev_crit_ratelimited(cs35l41->dev, "LBST Error\n"); + set_bit(CS35L41_BST_SHORT_ERR_RLS_SHIFT, &cs35l41->irq_errors); + + return IRQ_HANDLED; +} + +static irqreturn_t cs35l41_bst_dcm_uvp_err(int irq, void *data) +{ + struct cs35l41_hda *cs35l41 = data; + + dev_crit_ratelimited(cs35l41->dev, "DCM VBST Under Voltage Error\n"); + set_bit(CS35L41_BST_UVP_ERR_RLS_SHIFT, &cs35l41->irq_errors); + + return IRQ_HANDLED; +} + +static irqreturn_t cs35l41_bst_ovp_err(int irq, void *data) +{ + struct cs35l41_hda *cs35l41 = data; + + dev_crit_ratelimited(cs35l41->dev, "VBST Over Voltage error\n"); + set_bit(CS35L41_BST_OVP_ERR_RLS_SHIFT, &cs35l41->irq_errors); + + return IRQ_HANDLED; +} + +static irqreturn_t cs35l41_temp_err(int irq, void *data) +{ + struct cs35l41_hda *cs35l41 = data; + + dev_crit_ratelimited(cs35l41->dev, "Over temperature error\n"); + set_bit(CS35L41_TEMP_ERR_RLS_SHIFT, &cs35l41->irq_errors); + + return IRQ_HANDLED; +} + +static irqreturn_t cs35l41_temp_warn(int irq, void *data) +{ + struct cs35l41_hda *cs35l41 = data; + + dev_crit_ratelimited(cs35l41->dev, "Over temperature warning\n"); + set_bit(CS35L41_TEMP_WARN_ERR_RLS_SHIFT, &cs35l41->irq_errors); + + return IRQ_HANDLED; +} + +static irqreturn_t cs35l41_amp_short(int irq, void *data) +{ + struct cs35l41_hda *cs35l41 = data; + + dev_crit_ratelimited(cs35l41->dev, "Amp short error\n"); + set_bit(CS35L41_AMP_SHORT_ERR_RLS_SHIFT, &cs35l41->irq_errors); + + return IRQ_HANDLED; +} + +static const struct cs35l41_irq cs35l41_irqs[] = { + CS35L41_IRQ(BST_OVP_ERR, "Boost Overvoltage Error", cs35l41_bst_ovp_err), + CS35L41_IRQ(BST_DCM_UVP_ERR, "Boost Undervoltage Error", cs35l41_bst_dcm_uvp_err), + CS35L41_IRQ(BST_SHORT_ERR, "Boost Inductor Short Error", cs35l41_bst_short_err), + CS35L41_IRQ(TEMP_WARN, "Temperature Warning", cs35l41_temp_warn), + CS35L41_IRQ(TEMP_ERR, "Temperature Error", cs35l41_temp_err), + CS35L41_IRQ(AMP_SHORT_ERR, "Amp Short", cs35l41_amp_short), +}; + +static const struct regmap_irq cs35l41_reg_irqs[] = { + CS35L41_REG_IRQ(IRQ1_STATUS1, BST_OVP_ERR), + CS35L41_REG_IRQ(IRQ1_STATUS1, BST_DCM_UVP_ERR), + CS35L41_REG_IRQ(IRQ1_STATUS1, BST_SHORT_ERR), + CS35L41_REG_IRQ(IRQ1_STATUS1, TEMP_WARN), + CS35L41_REG_IRQ(IRQ1_STATUS1, TEMP_ERR), + CS35L41_REG_IRQ(IRQ1_STATUS1, AMP_SHORT_ERR), +}; + +static const struct regmap_irq_chip cs35l41_regmap_irq_chip = { + .name = "cs35l41 IRQ1 Controller", + .status_base = CS35L41_IRQ1_STATUS1, + .mask_base = CS35L41_IRQ1_MASK1, + .ack_base = CS35L41_IRQ1_STATUS1, + .num_regs = 4, + .irqs = cs35l41_reg_irqs, + .num_irqs = ARRAY_SIZE(cs35l41_reg_irqs), + .runtime_pm = true, +}; + +static void cs35l41_configure_interrupt(struct cs35l41_hda *cs35l41, int irq_pol) +{ + int irq; + int ret; + int i; + + if (!cs35l41->irq) { + dev_warn(cs35l41->dev, "No Interrupt Found"); + goto err; + } + + ret = devm_regmap_add_irq_chip(cs35l41->dev, cs35l41->regmap, cs35l41->irq, + IRQF_ONESHOT | IRQF_SHARED | irq_pol, + 0, &cs35l41_regmap_irq_chip, &cs35l41->irq_data); + if (ret) { + dev_dbg(cs35l41->dev, "Unable to add IRQ Chip: %d.", ret); + goto err; + } + + for (i = 0; i < ARRAY_SIZE(cs35l41_irqs); i++) { + irq = regmap_irq_get_virq(cs35l41->irq_data, cs35l41_irqs[i].irq); + if (irq < 0) { + ret = irq; + dev_dbg(cs35l41->dev, "Unable to map IRQ %s: %d.", cs35l41_irqs[i].name, + ret); + goto err; + } + + ret = devm_request_threaded_irq(cs35l41->dev, irq, NULL, + cs35l41_irqs[i].handler, + IRQF_ONESHOT | IRQF_SHARED | irq_pol, + cs35l41_irqs[i].name, cs35l41); + if (ret) { + dev_dbg(cs35l41->dev, "Unable to allocate IRQ %s:: %d.", + cs35l41_irqs[i].name, ret); + goto err; + } + } + return; +err: + dev_warn(cs35l41->dev, + "IRQ Config Failed. Amp errors may not be recoverable without reboot."); +} + +static int cs35l41_hda_apply_properties(struct cs35l41_hda *cs35l41) +{ + struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg; + bool using_irq = false; + int irq_pol; + int ret; + + if (!cs35l41->hw_cfg.valid) + return -EINVAL; + + ret = cs35l41_init_boost(cs35l41->dev, cs35l41->regmap, hw_cfg); + if (ret) + return ret; + + if (hw_cfg->gpio1.valid) { + switch (hw_cfg->gpio1.func) { + case CS35L41_NOT_USED: + break; + case CS35l41_VSPK_SWITCH: + hw_cfg->gpio1.func = CS35L41_GPIO1_GPIO; + hw_cfg->gpio1.out_en = true; + break; + case CS35l41_SYNC: + hw_cfg->gpio1.func = CS35L41_GPIO1_MDSYNC; + break; + default: + dev_err(cs35l41->dev, "Invalid function %d for GPIO1\n", + hw_cfg->gpio1.func); + return -EINVAL; + } + } + + if (hw_cfg->gpio2.valid) { + switch (hw_cfg->gpio2.func) { + case CS35L41_NOT_USED: + break; + case CS35L41_INTERRUPT: + using_irq = true; + hw_cfg->gpio2.func = CS35L41_GPIO2_INT_OPEN_DRAIN; + break; + default: + dev_err(cs35l41->dev, "Invalid GPIO2 function %d\n", hw_cfg->gpio2.func); + return -EINVAL; + } + } + + irq_pol = cs35l41_gpio_config(cs35l41->regmap, hw_cfg); + + if (using_irq) + cs35l41_configure_interrupt(cs35l41, irq_pol); + + return cs35l41_hda_channel_map(cs35l41); +} + +int cs35l41_get_speaker_id(struct device *dev, int amp_index, int num_amps, int fixed_gpio_id) +{ + struct gpio_desc *speaker_id_desc; + int speaker_id = -ENODEV; + + if (fixed_gpio_id >= 0) { + dev_dbg(dev, "Found Fixed Speaker ID GPIO (index = %d)\n", fixed_gpio_id); + speaker_id_desc = gpiod_get_index(dev, NULL, fixed_gpio_id, GPIOD_IN); + if (IS_ERR(speaker_id_desc)) { + speaker_id = PTR_ERR(speaker_id_desc); + return speaker_id; + } + speaker_id = gpiod_get_value_cansleep(speaker_id_desc); + gpiod_put(speaker_id_desc); + dev_dbg(dev, "Speaker ID = %d\n", speaker_id); + } else { + int base_index; + int gpios_per_amp; + int count; + int tmp; + int i; + + count = gpiod_count(dev, "spk-id"); + if (count > 0) { + speaker_id = 0; + gpios_per_amp = count / num_amps; + base_index = gpios_per_amp * amp_index; + + if (count % num_amps) + return -EINVAL; + + dev_dbg(dev, "Found %d Speaker ID GPIOs per Amp\n", gpios_per_amp); + + for (i = 0; i < gpios_per_amp; i++) { + speaker_id_desc = gpiod_get_index(dev, "spk-id", i + base_index, + GPIOD_IN); + if (IS_ERR(speaker_id_desc)) { + speaker_id = PTR_ERR(speaker_id_desc); + break; + } + tmp = gpiod_get_value_cansleep(speaker_id_desc); + gpiod_put(speaker_id_desc); + if (tmp < 0) { + speaker_id = tmp; + break; + } + speaker_id |= tmp << i; + } + dev_dbg(dev, "Speaker ID = %d\n", speaker_id); + } + } + return speaker_id; +} + +int cs35l41_hda_parse_acpi(struct cs35l41_hda *cs35l41, struct device *physdev, int id) +{ + struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg; + u32 values[HDA_MAX_COMPONENTS]; + char *property; + size_t nval; + int i, ret; + + property = "cirrus,dev-index"; + ret = device_property_count_u32(physdev, property); + if (ret <= 0) + goto err; + + if (ret > ARRAY_SIZE(values)) { + ret = -EINVAL; + goto err; + } + nval = ret; + + ret = device_property_read_u32_array(physdev, property, values, nval); + if (ret) + goto err; + + cs35l41->index = -1; + for (i = 0; i < nval; i++) { + if (values[i] == id) { + cs35l41->index = i; + break; + } + } + if (cs35l41->index == -1) { + dev_err(cs35l41->dev, "No index found in %s\n", property); + ret = -ENODEV; + goto err; + } + + /* To use the same release code for all laptop variants we can't use devm_ version of + * gpiod_get here, as CLSA010* don't have a fully functional bios with an _DSD node + */ + cs35l41->reset_gpio = fwnode_gpiod_get_index(acpi_fwnode_handle(cs35l41->dacpi), "reset", + cs35l41->index, GPIOD_OUT_LOW, + "cs35l41-reset"); + + property = "cirrus,speaker-position"; + ret = device_property_read_u32_array(physdev, property, values, nval); + if (ret) + goto err; + hw_cfg->spk_pos = values[cs35l41->index]; + + cs35l41->channel_index = 0; + for (i = 0; i < cs35l41->index; i++) + if (values[i] == hw_cfg->spk_pos) + cs35l41->channel_index++; + + property = "cirrus,gpio1-func"; + ret = device_property_read_u32_array(physdev, property, values, nval); + if (ret) + goto err; + hw_cfg->gpio1.func = values[cs35l41->index]; + hw_cfg->gpio1.valid = true; + + property = "cirrus,gpio2-func"; + ret = device_property_read_u32_array(physdev, property, values, nval); + if (ret) + goto err; + hw_cfg->gpio2.func = values[cs35l41->index]; + hw_cfg->gpio2.valid = true; + + property = "cirrus,boost-peak-milliamp"; + ret = device_property_read_u32_array(physdev, property, values, nval); + if (ret == 0) + hw_cfg->bst_ipk = values[cs35l41->index]; + else + hw_cfg->bst_ipk = -1; + + property = "cirrus,boost-ind-nanohenry"; + ret = device_property_read_u32_array(physdev, property, values, nval); + if (ret == 0) + hw_cfg->bst_ind = values[cs35l41->index]; + else + hw_cfg->bst_ind = -1; + + property = "cirrus,boost-cap-microfarad"; + ret = device_property_read_u32_array(physdev, property, values, nval); + if (ret == 0) + hw_cfg->bst_cap = values[cs35l41->index]; + else + hw_cfg->bst_cap = -1; + + cs35l41->speaker_id = cs35l41_get_speaker_id(physdev, cs35l41->index, nval, -1); + + if (hw_cfg->bst_ind > 0 || hw_cfg->bst_cap > 0 || hw_cfg->bst_ipk > 0) + hw_cfg->bst_type = CS35L41_INT_BOOST; + else + hw_cfg->bst_type = CS35L41_EXT_BOOST; + + hw_cfg->valid = true; + + return 0; +err: + dev_err(cs35l41->dev, "Failed property %s: %d\n", property, ret); + hw_cfg->valid = false; + hw_cfg->gpio1.valid = false; + hw_cfg->gpio2.valid = false; + acpi_dev_put(cs35l41->dacpi); + + return ret; +} + +static int cs35l41_hda_read_acpi(struct cs35l41_hda *cs35l41, const char *hid, int id) +{ + struct acpi_device *adev; + struct device *physdev; + struct spi_device *spi; + const char *sub; + int ret; + + adev = acpi_dev_get_first_match_dev(hid, NULL, -1); + if (!adev) { + dev_err(cs35l41->dev, "Failed to find an ACPI device for %s\n", hid); + return -ENODEV; + } + + cs35l41->dacpi = adev; + physdev = get_device(acpi_get_first_physical_node(adev)); + + sub = acpi_get_subsystem_id(ACPI_HANDLE(physdev)); + if (IS_ERR(sub)) + sub = NULL; + cs35l41->acpi_subsystem_id = sub; + + ret = cs35l41_add_dsd_properties(cs35l41, physdev, id, hid); + if (!ret) { + dev_info(cs35l41->dev, "Using extra _DSD properties, bypassing _DSD in ACPI\n"); + goto out; + } + + ret = cs35l41_hda_parse_acpi(cs35l41, physdev, id); + if (ret) { + put_device(physdev); + return ret; + } +out: + put_device(physdev); + + cs35l41->bypass_fw = false; + if (cs35l41->control_bus == SPI) { + spi = to_spi_device(cs35l41->dev); + if (spi->max_speed_hz < CS35L41_MAX_ACCEPTABLE_SPI_SPEED_HZ) { + dev_warn(cs35l41->dev, + "SPI speed is too slow to support firmware download: %d Hz.\n", + spi->max_speed_hz); + cs35l41->bypass_fw = true; + } + } + + return 0; +} + +int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int irq, + struct regmap *regmap, enum control_bus control_bus) +{ + unsigned int regid, reg_revid; + struct cs35l41_hda *cs35l41; + int ret; + + BUILD_BUG_ON(ARRAY_SIZE(cs35l41_irqs) != ARRAY_SIZE(cs35l41_reg_irqs)); + BUILD_BUG_ON(ARRAY_SIZE(cs35l41_irqs) != CS35L41_NUM_IRQ); + + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + cs35l41 = devm_kzalloc(dev, sizeof(*cs35l41), GFP_KERNEL); + if (!cs35l41) + return -ENOMEM; + + cs35l41->dev = dev; + cs35l41->irq = irq; + cs35l41->regmap = regmap; + cs35l41->control_bus = control_bus; + dev_set_drvdata(dev, cs35l41); + + ret = cs35l41_hda_read_acpi(cs35l41, device_name, id); + if (ret) + return dev_err_probe(cs35l41->dev, ret, "Platform not supported\n"); + + if (IS_ERR(cs35l41->reset_gpio)) { + ret = PTR_ERR(cs35l41->reset_gpio); + cs35l41->reset_gpio = NULL; + if (ret == -EBUSY) { + dev_info(cs35l41->dev, "Reset line busy, assuming shared reset\n"); + } else { + dev_err_probe(cs35l41->dev, ret, "Failed to get reset GPIO\n"); + goto err; + } + } + if (cs35l41->reset_gpio) { + gpiod_set_value_cansleep(cs35l41->reset_gpio, 0); + usleep_range(2000, 2100); + gpiod_set_value_cansleep(cs35l41->reset_gpio, 1); + } + + usleep_range(2000, 2100); + regmap_write(cs35l41->regmap, CS35L41_SFT_RESET, CS35L41_SOFTWARE_RESET); + usleep_range(2000, 2100); + + ret = cs35l41_wait_boot_done(cs35l41); + if (ret) + goto err; + + ret = cs35l41_verify_id(cs35l41, ®id, ®_revid); + if (ret) + goto err; + + ret = cs35l41_test_key_unlock(cs35l41->dev, cs35l41->regmap); + if (ret) + goto err; + + ret = cs35l41_register_errata_patch(cs35l41->dev, cs35l41->regmap, reg_revid); + if (ret) + goto err; + + ret = cs35l41_otp_unpack(cs35l41->dev, cs35l41->regmap); + if (ret) { + dev_err_probe(cs35l41->dev, ret, "OTP Unpack failed\n"); + goto err; + } + + ret = cs35l41_test_key_lock(cs35l41->dev, cs35l41->regmap); + if (ret) + goto err; + + ret = cs35l41_get_calibration(cs35l41); + if (ret && ret != -ENOENT) + goto err; + + cs35l41_mute(cs35l41->dev, true); + + INIT_WORK(&cs35l41->fw_load_work, cs35l41_fw_load_work); + mutex_init(&cs35l41->fw_mutex); + + pm_runtime_set_autosuspend_delay(cs35l41->dev, 3000); + pm_runtime_use_autosuspend(cs35l41->dev); + pm_runtime_set_active(cs35l41->dev); + pm_runtime_get_noresume(cs35l41->dev); + pm_runtime_enable(cs35l41->dev); + + ret = cs35l41_hda_apply_properties(cs35l41); + if (ret) + goto err_pm; + + pm_runtime_put_autosuspend(cs35l41->dev); + + ret = component_add(cs35l41->dev, &cs35l41_hda_comp_ops); + if (ret) { + dev_err_probe(cs35l41->dev, ret, "Register component failed\n"); + goto err_pm; + } + + dev_info(cs35l41->dev, "Cirrus Logic CS35L41 (%x), Revision: %02X\n", regid, reg_revid); + + return 0; + +err_pm: + pm_runtime_dont_use_autosuspend(cs35l41->dev); + pm_runtime_disable(cs35l41->dev); + pm_runtime_put_noidle(cs35l41->dev); + +err: + if (cs35l41_safe_reset(cs35l41->regmap, cs35l41->hw_cfg.bst_type)) + gpiod_set_value_cansleep(cs35l41->reset_gpio, 0); + gpiod_put(cs35l41->reset_gpio); + gpiod_put(cs35l41->cs_gpio); + acpi_dev_put(cs35l41->dacpi); + kfree(cs35l41->acpi_subsystem_id); + + return ret; +} +EXPORT_SYMBOL_NS_GPL(cs35l41_hda_probe, "SND_HDA_SCODEC_CS35L41"); + +void cs35l41_hda_remove(struct device *dev) +{ + struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); + + component_del(cs35l41->dev, &cs35l41_hda_comp_ops); + + pm_runtime_get_sync(cs35l41->dev); + pm_runtime_dont_use_autosuspend(cs35l41->dev); + pm_runtime_disable(cs35l41->dev); + + if (cs35l41->halo_initialized) + cs35l41_remove_dsp(cs35l41); + + acpi_dev_put(cs35l41->dacpi); + + pm_runtime_put_noidle(cs35l41->dev); + + if (cs35l41_safe_reset(cs35l41->regmap, cs35l41->hw_cfg.bst_type)) + gpiod_set_value_cansleep(cs35l41->reset_gpio, 0); + gpiod_put(cs35l41->reset_gpio); + gpiod_put(cs35l41->cs_gpio); + kfree(cs35l41->acpi_subsystem_id); +} +EXPORT_SYMBOL_NS_GPL(cs35l41_hda_remove, "SND_HDA_SCODEC_CS35L41"); + +const struct dev_pm_ops cs35l41_hda_pm_ops = { + RUNTIME_PM_OPS(cs35l41_runtime_suspend, cs35l41_runtime_resume, + cs35l41_runtime_idle) + .prepare = cs35l41_system_suspend_prep, + SYSTEM_SLEEP_PM_OPS(cs35l41_system_suspend, cs35l41_system_resume) +}; +EXPORT_SYMBOL_NS_GPL(cs35l41_hda_pm_ops, "SND_HDA_SCODEC_CS35L41"); + +MODULE_DESCRIPTION("CS35L41 HDA Driver"); +MODULE_IMPORT_NS("SND_SOC_CS_AMP_LIB"); +MODULE_AUTHOR("Lucas Tanure, Cirrus Logic Inc, <tanureal@opensource.cirrus.com>"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("FW_CS_DSP"); +MODULE_FIRMWARE("cirrus/cs35l41-*.wmfw"); +MODULE_FIRMWARE("cirrus/cs35l41-*.bin"); |