[v1,6/8] ALSA: hda/tas2781: Add tas2781 SPI-based driver

diff --git a/sound/pci/hda/tas2781-spi.h b/sound/pci/hda/tas2781-spi.h
new file mode 100644
index 000000000..abd6bb9aa
--- /dev/null
+++ b/sound/pci/hda/tas2781-spi.h
@@ -0,0 +1,180 @@ 
+/* SPDX-License-Identifier: GPL-2.0 */
+//
+// ALSA SoC Texas Instruments TAS2563/TAS2781 Audio Smart Amplifier
+//
+// Copyright (C) 2024 Texas Instruments Incorporated
+// https://www.ti.com
+//
+// The TAS2781 spi driver implements a flexible and configurable
+// algo coefficient setting for TAS2781 chips.
+//
+// Author: Baojun Xu <baojun.xu@ti.com>
+//
+
+#ifndef __TAS2781_SPI_H__
+#define __TAS2781_SPI_H__
+
+#include <sound/tas2781-dsp.h>
+
+/* version number */
+#define TAS2781_DRV_VER			1
+#define SMARTAMP_MODULE_NAME		"tas2781"
+#define TAS2781_GLOBAL_ADDR		0x40
+#define TAS2563_GLOBAL_ADDR		0x48
+#define TASDEVICE_RATES			(SNDRV_PCM_RATE_44100 |\
+	SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |\
+	SNDRV_PCM_RATE_88200)
+
+#define TASDEVICE_FORMATS		(SNDRV_PCM_FMTBIT_S16_LE | \
+	SNDRV_PCM_FMTBIT_S24_LE | \
+	SNDRV_PCM_FMTBIT_S32_LE)
+
+/*PAGE Control Register (available in page0 of each book) */
+#define TASDEVICE_PAGE_SELECT		0x00
+#define TASDEVICE_BOOKCTL_PAGE		0x00
+#define TASDEVICE_BOOKCTL_REG		127
+#define TASDEVICE_BOOK_ID(reg)		(reg / (256 * 128))
+#define TASDEVICE_PAGE_ID(reg)		((reg % (256 * 128)) / 128)
+#define TASDEVICE_PAGE_REG(reg)		((reg % (256 * 128)) % 128)
+#define TASDEVICE_PGRG(reg)		(reg % (256 * 128))
+#define TASDEVICE_REG(book, page, reg)	(((book * 256 * 128) + \
+					(page * 128)) + reg)
+
+/*Software Reset */
+#define TAS2781_REG_SWRESET		TASDEVICE_REG(0x0, 0X0, 0x01)
+#define TAS2781_REG_SWRESET_RESET	BIT(0)
+
+/*I2C Checksum */
+#define TASDEVICE_I2CChecksum		TASDEVICE_REG(0x0, 0x0, 0x7E)
+
+/* Volume control */
+#define TAS2781_DVC_LVL			TASDEVICE_REG(0x0, 0x0, 0x1A)
+#define TAS2781_AMP_LEVEL		TASDEVICE_REG(0x0, 0x0, 0x03)
+#define TAS2781_AMP_LEVEL_MASK		GENMASK(5, 1)
+
+#define TASDEVICE_CMD_SING_W		0x1
+#define TASDEVICE_CMD_BURST		0x2
+#define TASDEVICE_CMD_DELAY		0x3
+#define TASDEVICE_CMD_FIELD_W		0x4
+
+#define TAS2781_SPI_MAX_FREQ		4000000
+
+enum audio_device {
+	TAS2781,
+};
+
+enum device_catlog_id {
+	HP = 0,
+	OTHERS
+};
+
+struct tasdevice {
+	struct tasdevice_fw *cali_data_fmw;
+	unsigned int dev_addr;
+	unsigned int err_code;
+	unsigned char cur_book;
+	short cur_prog;
+	short cur_conf;
+	bool is_loading;
+	bool is_loaderr;
+};
+
+struct tasdevice_irqinfo {
+	int irq_gpio;
+	int irq;
+};
+
+struct calidata {
+	unsigned char *data;
+	unsigned long total_sz;
+};
+
+struct tasdevice_priv {
+	struct tasdevice tasdevice;
+	struct tasdevice_irqinfo irq_info;
+	struct spi_device **spi_devs;
+	struct tasdevice_rca rcabin;
+	struct calidata cali_data;
+	struct tasdevice_fw *fmw;
+	struct gpio_desc *reset;
+	struct gpio_desc *chipselect;
+	struct mutex codec_lock;
+	struct regmap *regmap;
+	struct device *dev;
+	struct tm tm;
+
+	enum device_catlog_id catlog_id;
+	const char *acpi_subsystem_id;
+	unsigned char cal_binaryname[TASDEVICE_MAX_CHANNELS][64];
+	unsigned char crc8_lkp_tbl[CRC8_TABLE_SIZE];
+	unsigned char coef_binaryname[64];
+	unsigned char rca_binaryname[64];
+	unsigned char dev_name[32];
+	unsigned char ndev;
+	unsigned int magic_num;
+	unsigned int chip_id;
+	unsigned int sysclk;
+
+	int cur_prog;
+	int cur_conf;
+	int fw_state;
+	int index;
+	void *client;
+	void *codec;
+	bool force_fwload_status;
+	bool playback_started;
+	bool isacpi;
+	bool isspi;
+	unsigned int global_addr;
+
+	int (*fw_parse_variable_header)(struct tasdevice_priv *tas_priv,
+		const struct firmware *fmw, int offset);
+	int (*fw_parse_program_data)(struct tasdevice_priv *tas_priv,
+		struct tasdevice_fw *tas_fmw,
+		const struct firmware *fmw, int offset);
+	int (*fw_parse_configuration_data)(struct tasdevice_priv *tas_priv,
+		struct tasdevice_fw *tas_fmw,
+		const struct firmware *fmw, int offset);
+	int (*tasdevice_load_block)(struct tasdevice_priv *tas_priv,
+		struct tasdev_blk *block);
+
+	int (*save_calibration)(struct tasdevice_priv *tas_priv);
+	void (*apply_calibration)(struct tasdevice_priv *tas_priv);
+};
+
+int tascodec_init(struct tasdevice_priv *tas_priv, void *codec,
+	struct module *module,
+	void (*cont)(const struct firmware *fw, void *context));
+int tasdevice_save_calibration(struct tasdevice_priv *tas_priv);
+void tasdevice_apply_calibration(struct tasdevice_priv *tas_priv);
+void tasdevice_remove(struct tasdevice_priv *tas_priv);
+int tasdevice_spi_dev_read(struct tasdevice_priv *tas_priv,
+	unsigned short chn, unsigned int reg, unsigned int *value);
+int tasdevice_spi_dev_write(struct tasdevice_priv *tas_priv,
+	unsigned short chn, unsigned int reg, unsigned int value);
+int tasdevice_spi_dev_bulk_write(
+	struct tasdevice_priv *tas_priv, unsigned short chn,
+	unsigned int reg, unsigned char *p_data, unsigned int n_length);
+int tasdevice_spi_dev_bulk_read(struct tasdevice_priv *tas_priv,
+	unsigned short chn, unsigned int reg, unsigned char *p_data,
+	unsigned int n_length);
+int tasdevice_spi_dev_update_bits(
+	struct tasdevice_priv *tasdevice, unsigned short chn,
+	unsigned int reg, unsigned int mask, unsigned int value);
+
+void tasdevice_spi_select_cfg_blk(void *context, int conf_no,
+	unsigned char block_type);
+void tasdevice_spi_config_info_remove(void *context);
+void tasdevice_spi_dsp_remove(void *context);
+int tasdevice_spi_dsp_parser(void *context);
+int tasdevice_spi_rca_parser(void *context, const struct firmware *fmw);
+void tasdevice_spi_dsp_remove(void *context);
+void tasdevice_spi_calbin_remove(void *context);
+int tasdevice_spi_select_tuningprm_cfg(void *context, int prm,
+	int cfg_no, int rca_conf_no);
+int tasdevice_spi_prmg_load(void *context, int prm_no);
+int tasdevice_spi_prmg_calibdata_load(void *context, int prm_no);
+void tasdevice_spi_tuning_switch(void *context, int state);
+int tas2781_spi_load_calibration(void *context, char *file_name,
+	unsigned short i);
+#endif /* __TAS2781_SPI_H__ */