/* Copyright (c) 2018, The Linux Foundation. All rights reserved.

 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#ifndef _WCD937X_INTERNAL_H
#define _WCD937X_INTERNAL_H

#include "../wcd-mbhc-v2.h"
#include "asoc/wcd-irq.h"
#include "wcd937x-mbhc.h"

#define WCD937X_MAX_MICBIAS 3

/* Convert from vout ctl to micbias voltage in mV */
#define  WCD_VOUT_CTL_TO_MICB(v)  (1000 + v * 50)

extern struct regmap_config wcd937x_regmap_config;

struct wcd937x_priv {
	struct device *dev;

	int variant;
	struct snd_soc_codec *codec;
	struct device_node *rst_np;
	struct regmap *regmap;

	struct swr_device *rx_swr_dev;
	struct swr_device *tx_swr_dev;

	s32 micb_ref[WCD937X_MAX_MICBIAS];
	s32 pullup_ref[WCD937X_MAX_MICBIAS];

	struct fw_info *fw_data;
	struct device_node *wcd_rst_np;

	struct mutex micb_lock;
	s32 dmic_0_1_clk_cnt;
	s32 dmic_2_3_clk_cnt;
	s32 dmic_4_5_clk_cnt;
	/* mbhc module */
	struct wcd937x_mbhc *mbhc;
	struct blocking_notifier_head notifier;

	u32 hph_mode;

	struct irq_domain *virq;
	struct wcd_irq_info *irq_info;
	u32 rx_clk_cnt;
	int num_irq_regs;
};

struct wcd937x_micbias_setting {
	u8 ldoh_v;
	u32 cfilt1_mv;
	u32 micb2_mv;
	u8 bias1_cfilt_sel;
};

struct wcd937x_pdata {
	struct device_node *rst_np;
	struct device_node *rx_slave;
	struct device_node *tx_slave;
	struct wcd937x_micbias_setting micbias;
};

enum {
	/* INTR_CTRL_INT_MASK_0 */
	WCD937X_IRQ_MBHC_BUTTON_RELEASE_DET = 0,
	WCD937X_IRQ_MBHC_BUTTON_PRESS_DET,
	WCD937X_IRQ_MBHC_ELECT_INS_REM_DET,
	WCD937X_IRQ_MBHC_ELECT_INS_REM_LEG_DET,
	WCD937X_IRQ_MBHC_SW_DET,
	WCD937X_IRQ_HPHR_OCP_INT,
	WCD937X_IRQ_HPHR_CNP_INT,
	WCD937X_IRQ_HPHL_OCP_INT,

	/* INTR_CTRL_INT_MASK_1 */
	WCD937X_IRQ_HPHL_CNP_INT,
	WCD937X_IRQ_EAR_CNP_INT,
	WCD937X_IRQ_EAR_SCD_INT,
	WCD937X_IRQ_AUX_CNP_INT,
	WCD937X_IRQ_AUX_SCD_INT,
	WCD937X_IRQ_HPHL_PDM_WD_INT,
	WCD937X_IRQ_HPHR_PDM_WD_INT,
	WCD937X_IRQ_AUX_PDM_WD_INT,

	/* INTR_CTRL_INT_MASK_2 */
	WCD937X_IRQ_LDORT_SCD_INT,
	WCD937X_IRQ_MBHC_MOISTURE_INT,
	WCD937X_IRQ_HPHL_SURGE_DET_INT,
	WCD937X_IRQ_HPHR_SURGE_DET_INT,
	WCD937X_NUM_IRQS,
};

extern struct wcd937x_mbhc *wcd937x_soc_get_mbhc(struct snd_soc_codec *codec);
extern int wcd937x_mbhc_micb_adjust_voltage(struct snd_soc_codec *codec,
					int volt, int micb_num);
extern int wcd937x_get_micb_vout_ctl_val(u32 micb_mv);
extern int wcd937x_micbias_control(struct snd_soc_codec *codec, int micb_num,
			int req, bool is_dapm);
#endif