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/*
* Copyright (c) 2015-2018, 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 _WCD_CLSH
#define _WCD_CLSH
#include <linux/stringify.h>
#define WCD_CLSH_STRINGIFY(s) __stringify(s)
#define CLSH_REQ_ENABLE true
#define CLSH_REQ_DISABLE false
#define WCD_CLSH_EVENT_PRE_DAC 0x01
#define WCD_CLSH_EVENT_POST_PA 0x02
/*
* Basic states for Class H state machine.
* represented as a bit mask within a u8 data type
* bit 0: EAR mode
* bit 1: HPH Left mode
* bit 2: HPH Right mode
* bit 3: AUX mode
*/
#define WCD_CLSH_STATE_IDLE 0x00
#define WCD_CLSH_STATE_EAR (0x01 << 0)
#define WCD_CLSH_STATE_HPHL (0x01 << 1)
#define WCD_CLSH_STATE_HPHR (0x01 << 2)
#define WCD_CLSH_STATE_AUX (0x01 << 3)
/*
* Though number of CLSH states is 4, max state should be 5
* because state array index starts from 1.
*/
#define WCD_CLSH_STATE_MAX 5
#define NUM_CLSH_STATES (0x01 << WCD_CLSH_STATE_MAX)
/* Derived State: Bits 1 and 2 should be set for Headphone stereo */
#define WCD_CLSH_STATE_HPH_ST (WCD_CLSH_STATE_HPHL | \
WCD_CLSH_STATE_HPHR)
#define WCD_CLSH_STATE_HPHL_AUX (WCD_CLSH_STATE_HPHL | \
WCD_CLSH_STATE_AUX)
#define WCD_CLSH_STATE_HPHR_AUX (WCD_CLSH_STATE_HPHR | \
WCD_CLSH_STATE_AUX)
#define WCD_CLSH_STATE_HPH_ST_AUX (WCD_CLSH_STATE_HPH_ST | \
WCD_CLSH_STATE_AUX)
#define WCD_CLSH_STATE_EAR_AUX (WCD_CLSH_STATE_EAR | \
WCD_CLSH_STATE_AUX)
#define WCD_CLSH_STATE_HPHL_EAR (WCD_CLSH_STATE_HPHL | \
WCD_CLSH_STATE_EAR)
#define WCD_CLSH_STATE_HPHR_EAR (WCD_CLSH_STATE_HPHR | \
WCD_CLSH_STATE_EAR)
#define WCD_CLSH_STATE_HPH_ST_EAR (WCD_CLSH_STATE_HPH_ST | \
WCD_CLSH_STATE_EAR)
enum {
CLS_H_NORMAL = 0, /* Class-H Default */
CLS_H_HIFI, /* Class-H HiFi */
CLS_H_LP, /* Class-H Low Power */
CLS_AB, /* Class-AB Low HIFI*/
CLS_H_LOHIFI, /* LoHIFI */
CLS_H_ULP, /* Ultra Low power */
CLS_AB_HIFI, /* Class-AB */
CLS_NONE, /* None of the above modes */
};
/* Class H data that the codec driver will maintain */
struct wcd_clsh_cdc_info {
u8 state;
int flyback_users;
int buck_users;
int interpolator_modes[WCD_CLSH_STATE_MAX];
};
#ifdef CONFIG_SND_SOC_WCD9XXX_V2
extern void wcd_cls_h_fsm(struct snd_soc_codec *codec,
struct wcd_clsh_cdc_info *cdc_clsh_d,
u8 clsh_event, u8 req_state,
int int_mode);
extern void wcd_cls_h_init(struct wcd_clsh_cdc_info *clsh);
#else
extern void wcd_cls_h_fsm(struct snd_soc_codec *codec,
struct wcd_clsh_cdc_info *cdc_clsh_d,
u8 clsh_event, u8 req_state,
int int_mode)
{
}
extern void wcd_cls_h_init(struct wcd_clsh_cdc_info *clsh)
{
}
#endif /* CONFIG_SND_SOC_WCD9XXX_V2 */
#endif
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