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267b9cdee5
Add handling of the Lenovo-specific and HP-specific EFI variables for speaker ID. Future Lenovo and HP models will not give the codec driver access to the speaker detect GPIO. Instead, the BIOS will read the GPIO and create an EFI variable with a value indicating the state of the GPIO. The Lenovo and HP EFI variables are both defined to have only two valid values. But the variable name, GUID and values are different. This adds a new exported function cs_amp_get_vendor_spkid(). Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Message-ID: <20250909113039.922065-3-rf@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2024 Cirrus Logic, Inc. and
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* Cirrus Logic International Semiconductor Ltd.
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*/
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#ifndef CS_AMP_LIB_H
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#define CS_AMP_LIB_H
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#include <linux/efi.h>
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#include <linux/types.h>
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struct cs_dsp;
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struct cirrus_amp_cal_data {
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u32 calTarget[2];
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u32 calTime[2];
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s8 calAmbient;
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u8 calStatus;
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u16 calR;
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} __packed;
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struct cirrus_amp_efi_data {
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u32 size;
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u32 count;
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struct cirrus_amp_cal_data data[] __counted_by(count);
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} __packed;
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/**
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* struct cirrus_amp_cal_controls - definition of firmware calibration controls
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* @alg_id: ID of algorithm containing the controls.
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* @mem_region: DSP memory region containing the controls.
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* @ambient: Name of control for calAmbient value.
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* @calr: Name of control for calR value.
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* @status: Name of control for calStatus value.
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* @checksum: Name of control for checksum value.
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*/
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struct cirrus_amp_cal_controls {
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unsigned int alg_id;
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int mem_region;
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const char *ambient;
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const char *calr;
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const char *status;
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const char *checksum;
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};
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int cs_amp_write_cal_coeffs(struct cs_dsp *dsp,
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const struct cirrus_amp_cal_controls *controls,
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const struct cirrus_amp_cal_data *data);
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int cs_amp_get_efi_calibration_data(struct device *dev, u64 target_uid, int amp_index,
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struct cirrus_amp_cal_data *out_data);
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int cs_amp_get_vendor_spkid(struct device *dev);
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struct cs_amp_test_hooks {
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efi_status_t (*get_efi_variable)(efi_char16_t *name,
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efi_guid_t *guid,
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unsigned long *size,
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void *buf);
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int (*write_cal_coeff)(struct cs_dsp *dsp,
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const struct cirrus_amp_cal_controls *controls,
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const char *ctl_name, u32 val);
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};
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extern const struct cs_amp_test_hooks * const cs_amp_test_hooks;
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#endif /* CS_AMP_LIB_H */
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