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104 lines
3.0 KiB
104 lines
3.0 KiB
/*
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* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _WCD_CLSH
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#define _WCD_CLSH
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#include <linux/stringify.h>
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#define WCD_CLSH_STRINGIFY(s) __stringify(s)
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#define CLSH_REQ_ENABLE true
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#define CLSH_REQ_DISABLE false
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#define WCD_CLSH_EVENT_PRE_DAC 0x01
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#define WCD_CLSH_EVENT_POST_PA 0x02
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/*
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* Basic states for Class H state machine.
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* represented as a bit mask within a u8 data type
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* bit 0: EAR mode
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* bit 1: HPH Left mode
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* bit 2: HPH Right mode
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* bit 3: AUX mode
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*/
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#define WCD_CLSH_STATE_IDLE 0x00
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#define WCD_CLSH_STATE_EAR (0x01 << 0)
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#define WCD_CLSH_STATE_HPHL (0x01 << 1)
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#define WCD_CLSH_STATE_HPHR (0x01 << 2)
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#define WCD_CLSH_STATE_AUX (0x01 << 3)
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/*
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* Though number of CLSH states is 4, max state should be 5
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* because state array index starts from 1.
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*/
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#define WCD_CLSH_STATE_MAX 5
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#define NUM_CLSH_STATES (0x01 << WCD_CLSH_STATE_MAX)
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/* Derived State: Bits 1 and 2 should be set for Headphone stereo */
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#define WCD_CLSH_STATE_HPH_ST (WCD_CLSH_STATE_HPHL | \
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WCD_CLSH_STATE_HPHR)
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#define WCD_CLSH_STATE_HPHL_AUX (WCD_CLSH_STATE_HPHL | \
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WCD_CLSH_STATE_AUX)
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#define WCD_CLSH_STATE_HPHR_AUX (WCD_CLSH_STATE_HPHR | \
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WCD_CLSH_STATE_AUX)
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#define WCD_CLSH_STATE_HPH_ST_AUX (WCD_CLSH_STATE_HPH_ST | \
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WCD_CLSH_STATE_AUX)
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#define WCD_CLSH_STATE_EAR_AUX (WCD_CLSH_STATE_EAR | \
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WCD_CLSH_STATE_AUX)
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#define WCD_CLSH_STATE_HPHL_EAR (WCD_CLSH_STATE_HPHL | \
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WCD_CLSH_STATE_EAR)
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#define WCD_CLSH_STATE_HPHR_EAR (WCD_CLSH_STATE_HPHR | \
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WCD_CLSH_STATE_EAR)
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#define WCD_CLSH_STATE_HPH_ST_EAR (WCD_CLSH_STATE_HPH_ST | \
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WCD_CLSH_STATE_EAR)
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enum {
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CLS_H_NORMAL = 0, /* Class-H Default */
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CLS_H_HIFI, /* Class-H HiFi */
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CLS_H_LP, /* Class-H Low Power */
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CLS_AB, /* Class-AB Low HIFI*/
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CLS_H_LOHIFI, /* LoHIFI */
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CLS_H_ULP, /* Ultra Low power */
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CLS_AB_HIFI, /* Class-AB */
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CLS_NONE, /* None of the above modes */
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};
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/* Class H data that the codec driver will maintain */
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struct wcd_clsh_cdc_info {
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u8 state;
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int flyback_users;
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int buck_users;
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int interpolator_modes[WCD_CLSH_STATE_MAX];
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};
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#ifdef CONFIG_SND_SOC_WCD9XXX_V2
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extern void wcd_cls_h_fsm(struct snd_soc_codec *codec,
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struct wcd_clsh_cdc_info *cdc_clsh_d,
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u8 clsh_event, u8 req_state,
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int int_mode);
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extern void wcd_cls_h_init(struct wcd_clsh_cdc_info *clsh);
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#else
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extern void wcd_cls_h_fsm(struct snd_soc_codec *codec,
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struct wcd_clsh_cdc_info *cdc_clsh_d,
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u8 clsh_event, u8 req_state,
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int int_mode)
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{
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}
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extern void wcd_cls_h_init(struct wcd_clsh_cdc_info *clsh)
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{
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}
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#endif /* CONFIG_SND_SOC_WCD9XXX_V2 */
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#endif
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