359 lines
9.1 KiB
C
359 lines
9.1 KiB
C
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/* Copyright (c) 2012-2013, 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 __WCD9XXX_MBHC_H__
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#define __WCD9XXX_MBHC_H__
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#include "wcd9xxx-resmgr.h"
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#define WCD9XXX_CFILT_FAST_MODE 0x00
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#define WCD9XXX_CFILT_SLOW_MODE 0x40
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#define WCD9XXX_CFILT_EXT_PRCHG_EN 0x70
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#define WCD9XXX_CFILT_EXT_PRCHG_DSBL 0x40
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struct mbhc_micbias_regs {
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u16 cfilt_val;
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u16 cfilt_ctl;
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u16 mbhc_reg;
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u16 int_rbias;
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u16 ctl_reg;
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u8 cfilt_sel;
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};
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enum mbhc_v_index {
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MBHC_V_IDX_CFILT,
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MBHC_V_IDX_VDDIO,
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MBHC_V_IDX_NUM,
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};
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enum mbhc_cal_type {
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MBHC_CAL_MCLK,
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MBHC_CAL_RCO,
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MBHC_CAL_NUM,
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};
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/* Data used by MBHC */
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struct mbhc_internal_cal_data {
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u16 dce_z;
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u16 dce_mb;
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u16 sta_z;
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u16 sta_mb;
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u32 t_sta_dce;
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u32 t_dce;
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u32 t_sta;
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u32 micb_mv;
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u16 v_ins_hu[MBHC_V_IDX_NUM];
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u16 v_ins_h[MBHC_V_IDX_NUM];
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u16 v_b1_hu[MBHC_V_IDX_NUM];
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u16 v_b1_h[MBHC_V_IDX_NUM];
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u16 v_brh[MBHC_V_IDX_NUM];
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u16 v_brl;
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u16 v_no_mic;
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s16 v_inval_ins_low;
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s16 v_inval_ins_high;
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};
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enum wcd9xxx_mbhc_version {
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WCD9XXX_MBHC_VERSION_UNKNOWN = 0,
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WCD9XXX_MBHC_VERSION_TAIKO,
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WCD9XXX_MBHC_VERSION_TAPAN,
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};
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enum wcd9xxx_mbhc_plug_type {
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PLUG_TYPE_INVALID = -1,
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PLUG_TYPE_NONE,
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PLUG_TYPE_HEADSET,
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PLUG_TYPE_HEADPHONE,
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PLUG_TYPE_HIGH_HPH,
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PLUG_TYPE_GND_MIC_SWAP,
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};
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enum wcd9xxx_micbias_num {
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MBHC_MICBIAS_INVALID = -1,
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MBHC_MICBIAS1,
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MBHC_MICBIAS2,
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MBHC_MICBIAS3,
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MBHC_MICBIAS4,
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};
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enum wcd9xx_mbhc_micbias_enable_bits {
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MBHC_MICBIAS_ENABLE_THRESHOLD_HEADSET,
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MBHC_MICBIAS_ENABLE_REGULAR_HEADSET,
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};
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enum wcd9xxx_mbhc_state {
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MBHC_STATE_NONE = -1,
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MBHC_STATE_POTENTIAL,
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MBHC_STATE_POTENTIAL_RECOVERY,
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MBHC_STATE_RELEASE,
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};
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enum wcd9xxx_mbhc_btn_det_mem {
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MBHC_BTN_DET_V_BTN_LOW,
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MBHC_BTN_DET_V_BTN_HIGH,
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MBHC_BTN_DET_N_READY,
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MBHC_BTN_DET_N_CIC,
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MBHC_BTN_DET_GAIN
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};
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enum wcd9xxx_mbhc_clk_freq {
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TAIKO_MCLK_12P2MHZ = 0,
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TAIKO_MCLK_9P6MHZ,
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TAIKO_NUM_CLK_FREQS,
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};
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enum wcd9xxx_mbhc_event_state {
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MBHC_EVENT_PA_HPHL,
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MBHC_EVENT_PA_HPHR,
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};
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struct wcd9xxx_mbhc_general_cfg {
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u8 t_ldoh;
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u8 t_bg_fast_settle;
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u8 t_shutdown_plug_rem;
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u8 mbhc_nsa;
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u8 mbhc_navg;
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u8 v_micbias_l;
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u8 v_micbias;
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u8 mbhc_reserved;
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u16 settle_wait;
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u16 t_micbias_rampup;
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u16 t_micbias_rampdown;
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u16 t_supply_bringup;
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} __packed;
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struct wcd9xxx_mbhc_plug_detect_cfg {
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u32 mic_current;
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u32 hph_current;
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u16 t_mic_pid;
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u16 t_ins_complete;
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u16 t_ins_retry;
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u16 v_removal_delta;
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u8 micbias_slow_ramp;
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u8 reserved0;
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u8 reserved1;
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u8 reserved2;
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} __packed;
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struct wcd9xxx_mbhc_plug_type_cfg {
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u8 av_detect;
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u8 mono_detect;
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u8 num_ins_tries;
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u8 reserved0;
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s16 v_no_mic;
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s16 v_av_min;
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s16 v_av_max;
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s16 v_hs_min;
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s16 v_hs_max;
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u16 reserved1;
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} __packed;
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struct wcd9xxx_mbhc_btn_detect_cfg {
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s8 c[8];
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u8 nc;
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u8 n_meas;
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u8 mbhc_nsc;
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u8 n_btn_meas;
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u8 n_btn_con;
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u8 num_btn;
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u8 reserved0;
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u8 reserved1;
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u16 t_poll;
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u16 t_bounce_wait;
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u16 t_rel_timeout;
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s16 v_btn_press_delta_sta;
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s16 v_btn_press_delta_cic;
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u16 t_btn0_timeout;
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s16 _v_btn_low[0]; /* v_btn_low[num_btn] */
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s16 _v_btn_high[0]; /* v_btn_high[num_btn] */
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u8 _n_ready[TAIKO_NUM_CLK_FREQS];
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u8 _n_cic[TAIKO_NUM_CLK_FREQS];
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u8 _gain[TAIKO_NUM_CLK_FREQS];
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} __packed;
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struct wcd9xxx_mbhc_imped_detect_cfg {
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u8 _hs_imped_detect;
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u8 _n_rload;
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u8 _hph_keep_on;
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u8 _repeat_rload_calc;
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u16 _t_dac_ramp_time;
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u16 _rhph_high;
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u16 _rhph_low;
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u16 _rload[0]; /* rload[n_rload] */
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u16 _alpha[0]; /* alpha[n_rload] */
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u16 _beta[3];
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} __packed;
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struct wcd9xxx_mbhc_config {
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bool read_fw_bin;
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/*
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* void* calibration contains:
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* struct wcd9xxx_mbhc_general_cfg generic;
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* struct wcd9xxx_mbhc_plug_detect_cfg plug_det;
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* struct wcd9xxx_mbhc_plug_type_cfg plug_type;
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* struct wcd9xxx_mbhc_btn_detect_cfg btn_det;
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* struct wcd9xxx_mbhc_imped_detect_cfg imped_det;
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* Note: various size depends on btn_det->num_btn
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*/
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void *calibration;
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enum wcd9xxx_micbias_num micbias;
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int (*mclk_cb_fn) (struct snd_soc_codec*, int, bool);
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unsigned int mclk_rate;
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unsigned int gpio;
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unsigned int gpio_irq;
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int gpio_level_insert;
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bool insert_detect; /* codec has own MBHC_INSERT_DETECT */
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bool detect_extn_cable;
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/* bit mask of enum wcd9xx_mbhc_micbias_enable_bits */
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unsigned long micbias_enable_flags;
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/* swap_gnd_mic returns true if extern GND/MIC swap switch toggled */
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bool (*swap_gnd_mic) (struct snd_soc_codec *);
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};
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struct wcd9xxx_mbhc {
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bool polling_active;
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/* Delayed work to report long button press */
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struct delayed_work mbhc_btn_dwork;
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int buttons_pressed;
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enum wcd9xxx_mbhc_state mbhc_state;
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struct wcd9xxx_mbhc_config *mbhc_cfg;
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struct mbhc_internal_cal_data mbhc_data;
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struct mbhc_micbias_regs mbhc_bias_regs;
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bool mbhc_micbias_switched;
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u32 hph_status; /* track headhpone status */
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u8 hphlocp_cnt; /* headphone left ocp retry */
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u8 hphrocp_cnt; /* headphone right ocp retry */
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/* Work to perform MBHC Firmware Read */
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struct delayed_work mbhc_firmware_dwork;
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const struct firmware *mbhc_fw;
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struct delayed_work mbhc_insert_dwork;
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u8 current_plug;
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struct work_struct correct_plug_swch;
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/*
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* Work to perform polling on microphone voltage
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* in order to correct plug type once plug type
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* is detected as headphone
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*/
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struct work_struct correct_plug_noswch;
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bool hs_detect_work_stop;
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bool lpi_enabled; /* low power insertion detection */
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bool in_swch_irq_handler;
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struct wcd9xxx_resmgr *resmgr;
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struct snd_soc_codec *codec;
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bool no_mic_headset_override;
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/* track PA/DAC state to sync with userspace */
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unsigned long hph_pa_dac_state;
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/*
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* save codec's state with resmgr event notification
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* bit flags of enum wcd9xxx_mbhc_event_state
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*/
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unsigned long event_state;
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unsigned long mbhc_last_resume; /* in jiffies */
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bool insert_detect_level_insert;
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struct snd_soc_jack headset_jack;
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struct snd_soc_jack button_jack;
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struct notifier_block nblock;
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bool micbias_enable;
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int (*micbias_enable_cb) (struct snd_soc_codec*, bool);
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enum wcd9xxx_mbhc_version mbhc_version;
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u32 rco_clk_rate;
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#ifdef CONFIG_DEBUG_FS
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struct dentry *debugfs_poke;
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struct dentry *debugfs_mbhc;
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#endif
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};
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#define WCD9XXX_MBHC_CAL_SIZE(buttons, rload) ( \
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sizeof(enum wcd9xxx_micbias_num) + \
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sizeof(struct wcd9xxx_mbhc_general_cfg) + \
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sizeof(struct wcd9xxx_mbhc_plug_detect_cfg) + \
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((sizeof(s16) + sizeof(s16)) * buttons) + \
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sizeof(struct wcd9xxx_mbhc_plug_type_cfg) + \
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sizeof(struct wcd9xxx_mbhc_btn_detect_cfg) + \
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sizeof(struct wcd9xxx_mbhc_imped_detect_cfg) + \
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((sizeof(u16) + sizeof(u16)) * rload) \
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)
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#define WCD9XXX_MBHC_CAL_GENERAL_PTR(cali) ( \
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(struct wcd9xxx_mbhc_general_cfg *) cali)
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#define WCD9XXX_MBHC_CAL_PLUG_DET_PTR(cali) ( \
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(struct wcd9xxx_mbhc_plug_detect_cfg *) \
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&(WCD9XXX_MBHC_CAL_GENERAL_PTR(cali)[1]))
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#define WCD9XXX_MBHC_CAL_PLUG_TYPE_PTR(cali) ( \
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(struct wcd9xxx_mbhc_plug_type_cfg *) \
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&(WCD9XXX_MBHC_CAL_PLUG_DET_PTR(cali)[1]))
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#define WCD9XXX_MBHC_CAL_BTN_DET_PTR(cali) ( \
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(struct wcd9xxx_mbhc_btn_detect_cfg *) \
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&(WCD9XXX_MBHC_CAL_PLUG_TYPE_PTR(cali)[1]))
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#define WCD9XXX_MBHC_CAL_IMPED_DET_PTR(cali) ( \
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(struct wcd9xxx_mbhc_imped_detect_cfg *) \
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(((void *)&WCD9XXX_MBHC_CAL_BTN_DET_PTR(cali)[1]) + \
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(WCD9XXX_MBHC_CAL_BTN_DET_PTR(cali)->num_btn * \
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(sizeof(WCD9XXX_MBHC_CAL_BTN_DET_PTR(cali)->_v_btn_low[0]) + \
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sizeof(WCD9XXX_MBHC_CAL_BTN_DET_PTR(cali)->_v_btn_high[0])))) \
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)
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/* minimum size of calibration data assuming there is only one button and
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* one rload.
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*/
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#define WCD9XXX_MBHC_CAL_MIN_SIZE ( \
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sizeof(struct wcd9xxx_mbhc_general_cfg) + \
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sizeof(struct wcd9xxx_mbhc_plug_detect_cfg) + \
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sizeof(struct wcd9xxx_mbhc_plug_type_cfg) + \
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sizeof(struct wcd9xxx_mbhc_btn_detect_cfg) + \
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sizeof(struct wcd9xxx_mbhc_imped_detect_cfg) + \
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(sizeof(u16) * 2) \
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)
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#define WCD9XXX_MBHC_CAL_BTN_SZ(cfg_ptr) ( \
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sizeof(struct wcd9xxx_mbhc_btn_detect_cfg) + \
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(cfg_ptr->num_btn * (sizeof(cfg_ptr->_v_btn_low[0]) + \
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sizeof(cfg_ptr->_v_btn_high[0]))))
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#define WCD9XXX_MBHC_CAL_IMPED_MIN_SZ ( \
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sizeof(struct wcd9xxx_mbhc_imped_detect_cfg) + sizeof(u16) * 2)
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#define WCD9XXX_MBHC_CAL_IMPED_SZ(cfg_ptr) ( \
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sizeof(struct wcd9xxx_mbhc_imped_detect_cfg) + \
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(cfg_ptr->_n_rload * \
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(sizeof(cfg_ptr->_rload[0]) + sizeof(cfg_ptr->_alpha[0]))))
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int wcd9xxx_mbhc_start(struct wcd9xxx_mbhc *mbhc,
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struct wcd9xxx_mbhc_config *mbhc_cfg);
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int wcd9xxx_mbhc_init(struct wcd9xxx_mbhc *mbhc, struct wcd9xxx_resmgr *resmgr,
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struct snd_soc_codec *codec,
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int (*micbias_enable_cb) (struct snd_soc_codec*, bool),
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int version,
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int rco_clk_rate);
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void wcd9xxx_mbhc_deinit(struct wcd9xxx_mbhc *mbhc);
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void *wcd9xxx_mbhc_cal_btn_det_mp(
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const struct wcd9xxx_mbhc_btn_detect_cfg *btn_det,
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const enum wcd9xxx_mbhc_btn_det_mem mem);
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#endif /* __WCD9XXX_MBHC_H__ */
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