212 lines
6.2 KiB
C
212 lines
6.2 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_COMMON_H__
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#define __WCD9XXX_COMMON_H__
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#include <linux/notifier.h>
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#include <linux/mfd/wcd9xxx/wcd9xxx_registers.h>
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enum wcd9xxx_bandgap_type {
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WCD9XXX_BANDGAP_OFF,
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WCD9XXX_BANDGAP_AUDIO_MODE,
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WCD9XXX_BANDGAP_MBHC_MODE,
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};
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enum wcd9xxx_clock_type {
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WCD9XXX_CLK_OFF,
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WCD9XXX_CLK_RCO,
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WCD9XXX_CLK_MCLK,
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};
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enum wcd9xxx_cfilt_sel {
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WCD9XXX_CFILT1_SEL,
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WCD9XXX_CFILT2_SEL,
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WCD9XXX_CFILT3_SEL,
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WCD9XXX_NUM_OF_CFILT,
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};
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struct wcd9xxx_reg_address {
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u16 micb_4_ctl;
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u16 micb_4_int_rbias;
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u16 micb_4_mbhc;
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};
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enum wcd9xxx_notify_event {
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WCD9XXX_EVENT_INVALID,
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WCD9XXX_EVENT_PRE_RCO_ON,
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WCD9XXX_EVENT_POST_RCO_ON,
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WCD9XXX_EVENT_PRE_RCO_OFF,
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WCD9XXX_EVENT_POST_RCO_OFF,
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WCD9XXX_EVENT_PRE_MCLK_ON,
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WCD9XXX_EVENT_POST_MCLK_ON,
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WCD9XXX_EVENT_PRE_MCLK_OFF,
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WCD9XXX_EVENT_POST_MCLK_OFF,
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WCD9XXX_EVENT_PRE_BG_OFF,
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WCD9XXX_EVENT_POST_BG_OFF,
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WCD9XXX_EVENT_PRE_BG_AUDIO_ON,
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WCD9XXX_EVENT_POST_BG_AUDIO_ON,
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WCD9XXX_EVENT_PRE_BG_MBHC_ON,
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WCD9XXX_EVENT_POST_BG_MBHC_ON,
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WCD9XXX_EVENT_PRE_MICBIAS_1_OFF,
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WCD9XXX_EVENT_POST_MICBIAS_1_OFF,
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WCD9XXX_EVENT_PRE_MICBIAS_2_OFF,
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WCD9XXX_EVENT_POST_MICBIAS_2_OFF,
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WCD9XXX_EVENT_PRE_MICBIAS_3_OFF,
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WCD9XXX_EVENT_POST_MICBIAS_3_OFF,
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WCD9XXX_EVENT_PRE_MICBIAS_4_OFF,
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WCD9XXX_EVENT_POST_MICBIAS_4_OFF,
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WCD9XXX_EVENT_PRE_MICBIAS_1_ON,
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WCD9XXX_EVENT_POST_MICBIAS_1_ON,
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WCD9XXX_EVENT_PRE_MICBIAS_2_ON,
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WCD9XXX_EVENT_POST_MICBIAS_2_ON,
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WCD9XXX_EVENT_PRE_MICBIAS_3_ON,
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WCD9XXX_EVENT_POST_MICBIAS_3_ON,
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WCD9XXX_EVENT_PRE_MICBIAS_4_ON,
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WCD9XXX_EVENT_POST_MICBIAS_4_ON,
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WCD9XXX_EVENT_PRE_CFILT_1_OFF,
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WCD9XXX_EVENT_POST_CFILT_1_OFF,
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WCD9XXX_EVENT_PRE_CFILT_2_OFF,
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WCD9XXX_EVENT_POST_CFILT_2_OFF,
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WCD9XXX_EVENT_PRE_CFILT_3_OFF,
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WCD9XXX_EVENT_POST_CFILT_3_OFF,
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WCD9XXX_EVENT_PRE_CFILT_1_ON,
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WCD9XXX_EVENT_POST_CFILT_1_ON,
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WCD9XXX_EVENT_PRE_CFILT_2_ON,
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WCD9XXX_EVENT_POST_CFILT_2_ON,
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WCD9XXX_EVENT_PRE_CFILT_3_ON,
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WCD9XXX_EVENT_POST_CFILT_3_ON,
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WCD9XXX_EVENT_PRE_HPHL_PA_ON,
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WCD9XXX_EVENT_POST_HPHL_PA_OFF,
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WCD9XXX_EVENT_PRE_HPHR_PA_ON,
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WCD9XXX_EVENT_POST_HPHR_PA_OFF,
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WCD9XXX_EVENT_POST_RESUME,
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WCD9XXX_EVENT_LAST,
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};
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struct wcd9xxx_resmgr {
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struct snd_soc_codec *codec;
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struct wcd9xxx *core;
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u32 rx_bias_count;
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enum wcd9xxx_bandgap_type bandgap_type;
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u16 bg_audio_users;
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u16 bg_mbhc_users;
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enum wcd9xxx_clock_type clk_type;
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u16 clk_rco_users;
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u16 clk_mclk_users;
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/* cfilt users per cfilts */
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u16 cfilt_users[WCD9XXX_NUM_OF_CFILT];
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struct wcd9xxx_reg_address *reg_addr;
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struct wcd9xxx_pdata *pdata;
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struct blocking_notifier_head notifier;
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/* Notifier needs mbhc pointer with resmgr */
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struct wcd9xxx_mbhc *mbhc;
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unsigned long cond_flags;
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struct list_head update_bit_cond_h;
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struct mutex update_bit_cond_lock;
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/*
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* Currently, only used for mbhc purpose, to protect
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* concurrent execution of mbhc threaded irq handlers and
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* kill race between DAPM and MBHC. But can serve as a
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* general lock to protect codec resource
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*/
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struct mutex codec_resource_lock;
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};
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int wcd9xxx_resmgr_init(struct wcd9xxx_resmgr *resmgr,
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struct snd_soc_codec *codec,
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struct wcd9xxx *wcd9xxx,
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struct wcd9xxx_pdata *pdata,
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struct wcd9xxx_reg_address *reg_addr);
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void wcd9xxx_resmgr_deinit(struct wcd9xxx_resmgr *resmgr);
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int wcd9xxx_resmgr_enable_config_mode(struct snd_soc_codec *codec, int enable);
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void wcd9xxx_resmgr_enable_rx_bias(struct wcd9xxx_resmgr *resmgr, u32 enable);
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void wcd9xxx_resmgr_get_clk_block(struct wcd9xxx_resmgr *resmgr,
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enum wcd9xxx_clock_type type);
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void wcd9xxx_resmgr_put_clk_block(struct wcd9xxx_resmgr *resmgr,
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enum wcd9xxx_clock_type type);
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void wcd9xxx_resmgr_get_bandgap(struct wcd9xxx_resmgr *resmgr,
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const enum wcd9xxx_bandgap_type choice);
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void wcd9xxx_resmgr_put_bandgap(struct wcd9xxx_resmgr *resmgr,
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enum wcd9xxx_bandgap_type choice);
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void wcd9xxx_resmgr_cfilt_get(struct wcd9xxx_resmgr *resmgr,
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enum wcd9xxx_cfilt_sel cfilt_sel);
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void wcd9xxx_resmgr_cfilt_put(struct wcd9xxx_resmgr *resmgr,
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enum wcd9xxx_cfilt_sel cfilt_sel);
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void wcd9xxx_resmgr_bcl_lock(struct wcd9xxx_resmgr *resmgr);
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void wcd9xxx_resmgr_post_ssr(struct wcd9xxx_resmgr *resmgr);
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#define WCD9XXX_BCL_LOCK(resmgr) \
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{ \
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pr_debug("%s: Acquiring BCL\n", __func__); \
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wcd9xxx_resmgr_bcl_lock(resmgr); \
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pr_debug("%s: Acquiring BCL done\n", __func__); \
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}
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void wcd9xxx_resmgr_bcl_unlock(struct wcd9xxx_resmgr *resmgr);
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#define WCD9XXX_BCL_UNLOCK(resmgr) \
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{ \
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pr_debug("%s: Release BCL\n", __func__); \
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wcd9xxx_resmgr_bcl_unlock(resmgr); \
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}
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#define WCD9XXX_BCL_ASSERT_LOCKED(resmgr) \
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{ \
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WARN_ONCE(!mutex_is_locked(&resmgr->codec_resource_lock), \
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"%s: BCL should have acquired\n", __func__); \
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}
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const char *wcd9xxx_get_event_string(enum wcd9xxx_notify_event type);
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int wcd9xxx_resmgr_get_k_val(struct wcd9xxx_resmgr *resmgr,
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unsigned int cfilt_mv);
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int wcd9xxx_resmgr_register_notifier(struct wcd9xxx_resmgr *resmgr,
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struct notifier_block *nblock);
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int wcd9xxx_resmgr_unregister_notifier(struct wcd9xxx_resmgr *resmgr,
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struct notifier_block *nblock);
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void wcd9xxx_resmgr_notifier_call(struct wcd9xxx_resmgr *resmgr,
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const enum wcd9xxx_notify_event e);
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enum wcd9xxx_resmgr_cond {
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WCD9XXX_COND_HPH = 0x01, /* Headphone */
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WCD9XXX_COND_HPH_MIC = 0x02, /* Microphone on the headset */
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};
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int wcd9xxx_resmgr_rm_cond_update_bits(struct wcd9xxx_resmgr *resmgr,
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enum wcd9xxx_resmgr_cond cond,
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unsigned short reg, int shift,
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bool invert);
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int wcd9xxx_resmgr_add_cond_update_bits(struct wcd9xxx_resmgr *resmgr,
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enum wcd9xxx_resmgr_cond cond,
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unsigned short reg, int shift,
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bool invert);
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void wcd9xxx_resmgr_cond_update_cond(struct wcd9xxx_resmgr *resmgr,
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enum wcd9xxx_resmgr_cond cond, bool set);
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#endif /* __WCD9XXX_COMMON_H__ */
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