1 files changed, 110 insertions, 0 deletions
diff --git a/sound/hda/codecs/side-codecs/cs35l41_hda.h b/sound/hda/codecs/side-codecs/cs35l41_hda.h
new file mode 100644
index 000000000000..7d003c598e93
--- /dev/null
+++ b/sound/hda/codecs/side-codecs/cs35l41_hda.h
@@ -0,0 +1,110 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * CS35L41 ALSA HDA audio driver
+ *
+ * Copyright 2021 Cirrus Logic, Inc.
+ *
+ * Author: Lucas Tanure <tanureal@opensource.cirrus.com>
+ */
+
+#ifndef __CS35L41_HDA_H__
+#define __CS35L41_HDA_H__
+
+#include <linux/acpi.h>
+#include <linux/efi.h>
+#include <linux/regulator/consumer.h>
+#include <linux/gpio/consumer.h>
+#include <linux/device.h>
+#include <sound/cs35l41.h>
+#include <sound/cs-amp-lib.h>
+
+#include <linux/firmware/cirrus/cs_dsp.h>
+#include <linux/firmware/cirrus/wmfw.h>
+
+#define CS35L41_MAX_ACCEPTABLE_SPI_SPEED_HZ	1000000
+#define DEFAULT_AMP_GAIN_PCM			17	/* 17.5dB Gain */
+#define DEFAULT_AMP_GAIN_PDM			19	/* 19.5dB Gain */
+
+struct cs35l41_amp_cal_data {
+	u32 calTarget[2];
+	u32 calTime[2];
+	s8 calAmbient;
+	u8 calStatus;
+	u16 calR;
+} __packed;
+
+struct cs35l41_amp_efi_data {
+	u32 size;
+	u32 count;
+	struct cs35l41_amp_cal_data data[];
+} __packed;
+
+enum cs35l41_hda_spk_pos {
+	CS35L41_LEFT,
+	CS35L41_RIGHT,
+	CS35L41_CENTER,
+};
+
+enum cs35l41_hda_gpio_function {
+	CS35L41_NOT_USED,
+	CS35l41_VSPK_SWITCH,
+	CS35L41_INTERRUPT,
+	CS35l41_SYNC,
+};
+
+enum control_bus {
+	I2C,
+	SPI
+};
+
+struct cs35l41_hda {
+	struct device *dev;
+	struct regmap *regmap;
+	struct gpio_desc *reset_gpio;
+	struct gpio_desc *cs_gpio;
+	struct cs35l41_hw_cfg hw_cfg;
+	struct hda_codec *codec;
+
+	int irq;
+	int index;
+	int channel_index;
+	unsigned volatile long irq_errors;
+	const char *amp_name;
+	const char *acpi_subsystem_id;
+	int firmware_type;
+	int speaker_id;
+	struct mutex fw_mutex;
+	struct work_struct fw_load_work;
+
+	struct regmap_irq_chip_data *irq_data;
+	bool firmware_running;
+	bool request_fw_load;
+	bool fw_request_ongoing;
+	bool halo_initialized;
+	bool playback_started;
+	struct cs_dsp cs_dsp;
+	struct acpi_device *dacpi;
+	bool mute_override;
+	enum control_bus control_bus;
+	bool bypass_fw;
+	unsigned int tuning_gain;
+	struct cirrus_amp_cal_data cal_data;
+	bool cal_data_valid;
+
+};
+
+enum halo_state {
+	HALO_STATE_CODE_INIT_DOWNLOAD = 0,
+	HALO_STATE_CODE_START,
+	HALO_STATE_CODE_RUN
+};
+
+extern const struct dev_pm_ops cs35l41_hda_pm_ops;
+
+int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int irq,
+		      struct regmap *regmap, enum control_bus control_bus);
+void cs35l41_hda_remove(struct device *dev);
+int cs35l41_get_speaker_id(struct device *dev, int amp_index, int num_amps, int fixed_gpio_id);
+int cs35l41_hda_parse_acpi(struct cs35l41_hda *cs35l41, struct device *physdev, int id);
+
+#endif /*__CS35L41_HDA_H__*/