576 lines
17 KiB
C
576 lines
17 KiB
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
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// Copyright (c) 2017-2018, Linaro Limited
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#include <linux/slab.h>
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#include <sound/soc.h>
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#include <linux/kernel.h>
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#include <linux/delay.h>
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#include "wcd9335.h"
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#include "wcd-clsh-v2.h"
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struct wcd_clsh_ctrl {
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int state;
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int mode;
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int flyback_users;
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int buck_users;
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int clsh_users;
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int codec_version;
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struct snd_soc_component *comp;
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};
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/* Class-H registers for codecs from and above WCD9335 */
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#define WCD9XXX_A_CDC_RX0_RX_PATH_CFG0 WCD9335_REG(0xB, 0x42)
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#define WCD9XXX_A_CDC_RX_PATH_CLSH_EN_MASK BIT(6)
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#define WCD9XXX_A_CDC_RX_PATH_CLSH_ENABLE BIT(6)
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#define WCD9XXX_A_CDC_RX_PATH_CLSH_DISABLE 0
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#define WCD9XXX_A_CDC_RX1_RX_PATH_CFG0 WCD9335_REG(0xB, 0x56)
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#define WCD9XXX_A_CDC_RX2_RX_PATH_CFG0 WCD9335_REG(0xB, 0x6A)
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#define WCD9XXX_A_CDC_CLSH_K1_MSB WCD9335_REG(0xC, 0x08)
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#define WCD9XXX_A_CDC_CLSH_K1_MSB_COEF_MASK GENMASK(3, 0)
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#define WCD9XXX_A_CDC_CLSH_K1_LSB WCD9335_REG(0xC, 0x09)
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#define WCD9XXX_A_CDC_CLSH_K1_LSB_COEF_MASK GENMASK(7, 0)
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#define WCD9XXX_A_ANA_RX_SUPPLIES WCD9335_REG(0x6, 0x08)
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#define WCD9XXX_A_ANA_RX_REGULATOR_MODE_MASK BIT(1)
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#define WCD9XXX_A_ANA_RX_REGULATOR_MODE_CLS_H 0
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#define WCD9XXX_A_ANA_RX_REGULATOR_MODE_CLS_AB BIT(1)
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#define WCD9XXX_A_ANA_RX_VNEG_PWR_LVL_MASK BIT(2)
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#define WCD9XXX_A_ANA_RX_VNEG_PWR_LVL_UHQA BIT(2)
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#define WCD9XXX_A_ANA_RX_VNEG_PWR_LVL_DEFAULT 0
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#define WCD9XXX_A_ANA_RX_VPOS_PWR_LVL_MASK BIT(3)
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#define WCD9XXX_A_ANA_RX_VPOS_PWR_LVL_UHQA BIT(3)
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#define WCD9XXX_A_ANA_RX_VPOS_PWR_LVL_DEFAULT 0
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#define WCD9XXX_A_ANA_RX_VNEG_EN_MASK BIT(6)
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#define WCD9XXX_A_ANA_RX_VNEG_EN_SHIFT 6
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#define WCD9XXX_A_ANA_RX_VNEG_ENABLE BIT(6)
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#define WCD9XXX_A_ANA_RX_VNEG_DISABLE 0
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#define WCD9XXX_A_ANA_RX_VPOS_EN_MASK BIT(7)
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#define WCD9XXX_A_ANA_RX_VPOS_EN_SHIFT 7
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#define WCD9XXX_A_ANA_RX_VPOS_ENABLE BIT(7)
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#define WCD9XXX_A_ANA_RX_VPOS_DISABLE 0
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#define WCD9XXX_A_ANA_HPH WCD9335_REG(0x6, 0x09)
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#define WCD9XXX_A_ANA_HPH_PWR_LEVEL_MASK GENMASK(3, 2)
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#define WCD9XXX_A_ANA_HPH_PWR_LEVEL_UHQA 0x08
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#define WCD9XXX_A_ANA_HPH_PWR_LEVEL_LP 0x04
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#define WCD9XXX_A_ANA_HPH_PWR_LEVEL_NORMAL 0x0
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#define WCD9XXX_A_CDC_CLSH_CRC WCD9335_REG(0xC, 0x01)
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#define WCD9XXX_A_CDC_CLSH_CRC_CLK_EN_MASK BIT(0)
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#define WCD9XXX_A_CDC_CLSH_CRC_CLK_ENABLE BIT(0)
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#define WCD9XXX_A_CDC_CLSH_CRC_CLK_DISABLE 0
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#define WCD9XXX_FLYBACK_EN WCD9335_REG(0x6, 0xA4)
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#define WCD9XXX_FLYBACK_EN_DELAY_SEL_MASK GENMASK(6, 5)
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#define WCD9XXX_FLYBACK_EN_DELAY_26P25_US 0x40
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#define WCD9XXX_FLYBACK_EN_RESET_BY_EXT_MASK BIT(4)
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#define WCD9XXX_FLYBACK_EN_PWDN_WITHOUT_DELAY BIT(4)
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#define WCD9XXX_FLYBACK_EN_PWDN_WITH_DELAY 0
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#define WCD9XXX_RX_BIAS_FLYB_BUFF WCD9335_REG(0x6, 0xC7)
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#define WCD9XXX_RX_BIAS_FLYB_VNEG_5_UA_MASK GENMASK(7, 4)
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#define WCD9XXX_RX_BIAS_FLYB_VPOS_5_UA_MASK GENMASK(3, 0)
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#define WCD9XXX_HPH_L_EN WCD9335_REG(0x6, 0xD3)
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#define WCD9XXX_HPH_CONST_SEL_L_MASK GENMASK(7, 3)
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#define WCD9XXX_HPH_CONST_SEL_BYPASS 0
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#define WCD9XXX_HPH_CONST_SEL_LP_PATH 0x40
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#define WCD9XXX_HPH_CONST_SEL_HQ_PATH 0x80
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#define WCD9XXX_HPH_R_EN WCD9335_REG(0x6, 0xD6)
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#define WCD9XXX_HPH_REFBUFF_UHQA_CTL WCD9335_REG(0x6, 0xDD)
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#define WCD9XXX_HPH_REFBUFF_UHQA_GAIN_MASK GENMASK(2, 0)
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#define WCD9XXX_CLASSH_CTRL_VCL_2 WCD9335_REG(0x6, 0x9B)
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#define WCD9XXX_CLASSH_CTRL_VCL_2_VREF_FILT_1_MASK GENMASK(5, 4)
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#define WCD9XXX_CLASSH_CTRL_VCL_VREF_FILT_R_50KOHM 0x20
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#define WCD9XXX_CLASSH_CTRL_VCL_VREF_FILT_R_0KOHM 0x0
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#define WCD9XXX_CDC_RX1_RX_PATH_CTL WCD9335_REG(0xB, 0x55)
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#define WCD9XXX_CDC_RX2_RX_PATH_CTL WCD9335_REG(0xB, 0x69)
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#define WCD9XXX_CDC_CLK_RST_CTRL_MCLK_CONTROL WCD9335_REG(0xD, 0x41)
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#define WCD9XXX_CDC_CLK_RST_CTRL_MCLK_EN_MASK BIT(0)
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#define WCD9XXX_CDC_CLK_RST_CTRL_MCLK_11P3_EN_MASK BIT(1)
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#define WCD9XXX_CLASSH_CTRL_CCL_1 WCD9335_REG(0x6, 0x9C)
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#define WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_MASK GENMASK(7, 4)
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#define WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_50MA 0x50
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#define WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_30MA 0x30
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#define CLSH_REQ_ENABLE true
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#define CLSH_REQ_DISABLE false
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#define WCD_USLEEP_RANGE 50
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enum {
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DAC_GAIN_0DB = 0,
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DAC_GAIN_0P2DB,
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DAC_GAIN_0P4DB,
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DAC_GAIN_0P6DB,
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DAC_GAIN_0P8DB,
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DAC_GAIN_M0P2DB,
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DAC_GAIN_M0P4DB,
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DAC_GAIN_M0P6DB,
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};
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static inline void wcd_enable_clsh_block(struct wcd_clsh_ctrl *ctrl,
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bool enable)
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{
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struct snd_soc_component *comp = ctrl->comp;
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if ((enable && ++ctrl->clsh_users == 1) ||
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(!enable && --ctrl->clsh_users == 0))
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snd_soc_component_update_bits(comp, WCD9XXX_A_CDC_CLSH_CRC,
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WCD9XXX_A_CDC_CLSH_CRC_CLK_EN_MASK,
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enable);
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if (ctrl->clsh_users < 0)
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ctrl->clsh_users = 0;
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}
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static inline bool wcd_clsh_enable_status(struct snd_soc_component *comp)
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{
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return snd_soc_component_read(comp, WCD9XXX_A_CDC_CLSH_CRC) &
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WCD9XXX_A_CDC_CLSH_CRC_CLK_EN_MASK;
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}
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static inline void wcd_clsh_set_buck_mode(struct snd_soc_component *comp,
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int mode)
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{
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/* set to HIFI */
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if (mode == CLS_H_HIFI)
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snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
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WCD9XXX_A_ANA_RX_VPOS_PWR_LVL_MASK,
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WCD9XXX_A_ANA_RX_VPOS_PWR_LVL_UHQA);
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else
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snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
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WCD9XXX_A_ANA_RX_VPOS_PWR_LVL_MASK,
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WCD9XXX_A_ANA_RX_VPOS_PWR_LVL_DEFAULT);
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}
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static inline void wcd_clsh_set_flyback_mode(struct snd_soc_component *comp,
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int mode)
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{
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/* set to HIFI */
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if (mode == CLS_H_HIFI)
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snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
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WCD9XXX_A_ANA_RX_VNEG_PWR_LVL_MASK,
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WCD9XXX_A_ANA_RX_VNEG_PWR_LVL_UHQA);
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else
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snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
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WCD9XXX_A_ANA_RX_VNEG_PWR_LVL_MASK,
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WCD9XXX_A_ANA_RX_VNEG_PWR_LVL_DEFAULT);
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}
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static void wcd_clsh_buck_ctrl(struct wcd_clsh_ctrl *ctrl,
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int mode,
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bool enable)
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{
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struct snd_soc_component *comp = ctrl->comp;
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/* enable/disable buck */
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if ((enable && (++ctrl->buck_users == 1)) ||
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(!enable && (--ctrl->buck_users == 0)))
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snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
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WCD9XXX_A_ANA_RX_VPOS_EN_MASK,
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enable << WCD9XXX_A_ANA_RX_VPOS_EN_SHIFT);
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/*
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* 500us sleep is required after buck enable/disable
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* as per HW requirement
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*/
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usleep_range(500, 500 + WCD_USLEEP_RANGE);
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}
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static void wcd_clsh_flyback_ctrl(struct wcd_clsh_ctrl *ctrl,
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int mode,
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bool enable)
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{
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struct snd_soc_component *comp = ctrl->comp;
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/* enable/disable flyback */
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if ((enable && (++ctrl->flyback_users == 1)) ||
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(!enable && (--ctrl->flyback_users == 0))) {
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snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
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WCD9XXX_A_ANA_RX_VNEG_EN_MASK,
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enable << WCD9XXX_A_ANA_RX_VNEG_EN_SHIFT);
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/* 100usec delay is needed as per HW requirement */
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usleep_range(100, 110);
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}
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/*
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* 500us sleep is required after flyback enable/disable
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* as per HW requirement
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*/
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usleep_range(500, 500 + WCD_USLEEP_RANGE);
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}
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static void wcd_clsh_set_gain_path(struct wcd_clsh_ctrl *ctrl, int mode)
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{
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struct snd_soc_component *comp = ctrl->comp;
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int val = 0;
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switch (mode) {
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case CLS_H_NORMAL:
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case CLS_AB:
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val = WCD9XXX_HPH_CONST_SEL_BYPASS;
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break;
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case CLS_H_HIFI:
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val = WCD9XXX_HPH_CONST_SEL_HQ_PATH;
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break;
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case CLS_H_LP:
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val = WCD9XXX_HPH_CONST_SEL_LP_PATH;
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break;
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}
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snd_soc_component_update_bits(comp, WCD9XXX_HPH_L_EN,
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WCD9XXX_HPH_CONST_SEL_L_MASK,
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val);
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snd_soc_component_update_bits(comp, WCD9XXX_HPH_R_EN,
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WCD9XXX_HPH_CONST_SEL_L_MASK,
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val);
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}
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static void wcd_clsh_set_hph_mode(struct snd_soc_component *comp,
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int mode)
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{
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int val = 0, gain = 0, res_val;
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int ipeak = WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_50MA;
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res_val = WCD9XXX_CLASSH_CTRL_VCL_VREF_FILT_R_0KOHM;
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switch (mode) {
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case CLS_H_NORMAL:
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res_val = WCD9XXX_CLASSH_CTRL_VCL_VREF_FILT_R_50KOHM;
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val = WCD9XXX_A_ANA_HPH_PWR_LEVEL_NORMAL;
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gain = DAC_GAIN_0DB;
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ipeak = WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_50MA;
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break;
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case CLS_AB:
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val = WCD9XXX_A_ANA_HPH_PWR_LEVEL_NORMAL;
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gain = DAC_GAIN_0DB;
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ipeak = WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_50MA;
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break;
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case CLS_H_HIFI:
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val = WCD9XXX_A_ANA_HPH_PWR_LEVEL_UHQA;
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gain = DAC_GAIN_M0P2DB;
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ipeak = WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_50MA;
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break;
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case CLS_H_LP:
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val = WCD9XXX_A_ANA_HPH_PWR_LEVEL_LP;
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ipeak = WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_30MA;
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break;
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}
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snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_HPH,
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WCD9XXX_A_ANA_HPH_PWR_LEVEL_MASK, val);
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snd_soc_component_update_bits(comp, WCD9XXX_CLASSH_CTRL_VCL_2,
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WCD9XXX_CLASSH_CTRL_VCL_2_VREF_FILT_1_MASK,
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res_val);
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if (mode != CLS_H_LP)
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snd_soc_component_update_bits(comp,
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WCD9XXX_HPH_REFBUFF_UHQA_CTL,
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WCD9XXX_HPH_REFBUFF_UHQA_GAIN_MASK,
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gain);
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snd_soc_component_update_bits(comp, WCD9XXX_CLASSH_CTRL_CCL_1,
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WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_MASK,
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ipeak);
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}
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static void wcd_clsh_set_flyback_current(struct snd_soc_component *comp,
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int mode)
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{
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snd_soc_component_update_bits(comp, WCD9XXX_RX_BIAS_FLYB_BUFF,
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WCD9XXX_RX_BIAS_FLYB_VPOS_5_UA_MASK, 0x0A);
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snd_soc_component_update_bits(comp, WCD9XXX_RX_BIAS_FLYB_BUFF,
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WCD9XXX_RX_BIAS_FLYB_VNEG_5_UA_MASK, 0x0A);
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/* Sleep needed to avoid click and pop as per HW requirement */
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usleep_range(100, 110);
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}
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static void wcd_clsh_set_buck_regulator_mode(struct snd_soc_component *comp,
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int mode)
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{
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if (mode == CLS_AB)
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snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
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WCD9XXX_A_ANA_RX_REGULATOR_MODE_MASK,
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WCD9XXX_A_ANA_RX_REGULATOR_MODE_CLS_AB);
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else
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snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
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WCD9XXX_A_ANA_RX_REGULATOR_MODE_MASK,
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WCD9XXX_A_ANA_RX_REGULATOR_MODE_CLS_H);
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}
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static void wcd_clsh_state_lo(struct wcd_clsh_ctrl *ctrl, int req_state,
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bool is_enable, int mode)
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{
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struct snd_soc_component *comp = ctrl->comp;
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if (mode != CLS_AB) {
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dev_err(comp->dev, "%s: LO cannot be in this mode: %d\n",
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__func__, mode);
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return;
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}
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if (is_enable) {
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wcd_clsh_set_buck_regulator_mode(comp, mode);
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wcd_clsh_set_buck_mode(comp, mode);
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wcd_clsh_set_flyback_mode(comp, mode);
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wcd_clsh_flyback_ctrl(ctrl, mode, true);
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wcd_clsh_set_flyback_current(comp, mode);
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wcd_clsh_buck_ctrl(ctrl, mode, true);
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} else {
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wcd_clsh_buck_ctrl(ctrl, mode, false);
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wcd_clsh_flyback_ctrl(ctrl, mode, false);
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wcd_clsh_set_flyback_mode(comp, CLS_H_NORMAL);
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wcd_clsh_set_buck_mode(comp, CLS_H_NORMAL);
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wcd_clsh_set_buck_regulator_mode(comp, CLS_H_NORMAL);
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}
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}
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static void wcd_clsh_state_hph_r(struct wcd_clsh_ctrl *ctrl, int req_state,
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bool is_enable, int mode)
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{
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struct snd_soc_component *comp = ctrl->comp;
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if (mode == CLS_H_NORMAL) {
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dev_err(comp->dev, "%s: Normal mode not applicable for hph_r\n",
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__func__);
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return;
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}
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if (is_enable) {
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if (mode != CLS_AB) {
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wcd_enable_clsh_block(ctrl, true);
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/*
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* These K1 values depend on the Headphone Impedance
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* For now it is assumed to be 16 ohm
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*/
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snd_soc_component_update_bits(comp,
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WCD9XXX_A_CDC_CLSH_K1_MSB,
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WCD9XXX_A_CDC_CLSH_K1_MSB_COEF_MASK,
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0x00);
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snd_soc_component_update_bits(comp,
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WCD9XXX_A_CDC_CLSH_K1_LSB,
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WCD9XXX_A_CDC_CLSH_K1_LSB_COEF_MASK,
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0xC0);
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snd_soc_component_update_bits(comp,
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WCD9XXX_A_CDC_RX2_RX_PATH_CFG0,
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WCD9XXX_A_CDC_RX_PATH_CLSH_EN_MASK,
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WCD9XXX_A_CDC_RX_PATH_CLSH_ENABLE);
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}
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wcd_clsh_set_buck_regulator_mode(comp, mode);
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wcd_clsh_set_flyback_mode(comp, mode);
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wcd_clsh_flyback_ctrl(ctrl, mode, true);
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wcd_clsh_set_flyback_current(comp, mode);
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wcd_clsh_set_buck_mode(comp, mode);
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wcd_clsh_buck_ctrl(ctrl, mode, true);
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wcd_clsh_set_hph_mode(comp, mode);
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wcd_clsh_set_gain_path(ctrl, mode);
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} else {
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wcd_clsh_set_hph_mode(comp, CLS_H_NORMAL);
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if (mode != CLS_AB) {
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snd_soc_component_update_bits(comp,
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WCD9XXX_A_CDC_RX2_RX_PATH_CFG0,
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WCD9XXX_A_CDC_RX_PATH_CLSH_EN_MASK,
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WCD9XXX_A_CDC_RX_PATH_CLSH_DISABLE);
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wcd_enable_clsh_block(ctrl, false);
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}
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/* buck and flyback set to default mode and disable */
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wcd_clsh_buck_ctrl(ctrl, CLS_H_NORMAL, false);
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wcd_clsh_flyback_ctrl(ctrl, CLS_H_NORMAL, false);
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wcd_clsh_set_flyback_mode(comp, CLS_H_NORMAL);
|
|
wcd_clsh_set_buck_mode(comp, CLS_H_NORMAL);
|
|
wcd_clsh_set_buck_regulator_mode(comp, CLS_H_NORMAL);
|
|
}
|
|
}
|
|
|
|
static void wcd_clsh_state_hph_l(struct wcd_clsh_ctrl *ctrl, int req_state,
|
|
bool is_enable, int mode)
|
|
{
|
|
struct snd_soc_component *comp = ctrl->comp;
|
|
|
|
if (mode == CLS_H_NORMAL) {
|
|
dev_err(comp->dev, "%s: Normal mode not applicable for hph_l\n",
|
|
__func__);
|
|
return;
|
|
}
|
|
|
|
if (is_enable) {
|
|
if (mode != CLS_AB) {
|
|
wcd_enable_clsh_block(ctrl, true);
|
|
/*
|
|
* These K1 values depend on the Headphone Impedance
|
|
* For now it is assumed to be 16 ohm
|
|
*/
|
|
snd_soc_component_update_bits(comp,
|
|
WCD9XXX_A_CDC_CLSH_K1_MSB,
|
|
WCD9XXX_A_CDC_CLSH_K1_MSB_COEF_MASK,
|
|
0x00);
|
|
snd_soc_component_update_bits(comp,
|
|
WCD9XXX_A_CDC_CLSH_K1_LSB,
|
|
WCD9XXX_A_CDC_CLSH_K1_LSB_COEF_MASK,
|
|
0xC0);
|
|
snd_soc_component_update_bits(comp,
|
|
WCD9XXX_A_CDC_RX1_RX_PATH_CFG0,
|
|
WCD9XXX_A_CDC_RX_PATH_CLSH_EN_MASK,
|
|
WCD9XXX_A_CDC_RX_PATH_CLSH_ENABLE);
|
|
}
|
|
wcd_clsh_set_buck_regulator_mode(comp, mode);
|
|
wcd_clsh_set_flyback_mode(comp, mode);
|
|
wcd_clsh_flyback_ctrl(ctrl, mode, true);
|
|
wcd_clsh_set_flyback_current(comp, mode);
|
|
wcd_clsh_set_buck_mode(comp, mode);
|
|
wcd_clsh_buck_ctrl(ctrl, mode, true);
|
|
wcd_clsh_set_hph_mode(comp, mode);
|
|
wcd_clsh_set_gain_path(ctrl, mode);
|
|
} else {
|
|
wcd_clsh_set_hph_mode(comp, CLS_H_NORMAL);
|
|
|
|
if (mode != CLS_AB) {
|
|
snd_soc_component_update_bits(comp,
|
|
WCD9XXX_A_CDC_RX1_RX_PATH_CFG0,
|
|
WCD9XXX_A_CDC_RX_PATH_CLSH_EN_MASK,
|
|
WCD9XXX_A_CDC_RX_PATH_CLSH_DISABLE);
|
|
wcd_enable_clsh_block(ctrl, false);
|
|
}
|
|
/* set buck and flyback to Default Mode */
|
|
wcd_clsh_buck_ctrl(ctrl, CLS_H_NORMAL, false);
|
|
wcd_clsh_flyback_ctrl(ctrl, CLS_H_NORMAL, false);
|
|
wcd_clsh_set_flyback_mode(comp, CLS_H_NORMAL);
|
|
wcd_clsh_set_buck_mode(comp, CLS_H_NORMAL);
|
|
wcd_clsh_set_buck_regulator_mode(comp, CLS_H_NORMAL);
|
|
}
|
|
}
|
|
|
|
static void wcd_clsh_state_ear(struct wcd_clsh_ctrl *ctrl, int req_state,
|
|
bool is_enable, int mode)
|
|
{
|
|
struct snd_soc_component *comp = ctrl->comp;
|
|
|
|
if (mode != CLS_H_NORMAL) {
|
|
dev_err(comp->dev, "%s: mode: %d cannot be used for EAR\n",
|
|
__func__, mode);
|
|
return;
|
|
}
|
|
|
|
if (is_enable) {
|
|
wcd_enable_clsh_block(ctrl, true);
|
|
snd_soc_component_update_bits(comp,
|
|
WCD9XXX_A_CDC_RX0_RX_PATH_CFG0,
|
|
WCD9XXX_A_CDC_RX_PATH_CLSH_EN_MASK,
|
|
WCD9XXX_A_CDC_RX_PATH_CLSH_ENABLE);
|
|
wcd_clsh_set_buck_mode(comp, mode);
|
|
wcd_clsh_set_flyback_mode(comp, mode);
|
|
wcd_clsh_flyback_ctrl(ctrl, mode, true);
|
|
wcd_clsh_set_flyback_current(comp, mode);
|
|
wcd_clsh_buck_ctrl(ctrl, mode, true);
|
|
} else {
|
|
snd_soc_component_update_bits(comp,
|
|
WCD9XXX_A_CDC_RX0_RX_PATH_CFG0,
|
|
WCD9XXX_A_CDC_RX_PATH_CLSH_EN_MASK,
|
|
WCD9XXX_A_CDC_RX_PATH_CLSH_DISABLE);
|
|
wcd_enable_clsh_block(ctrl, false);
|
|
wcd_clsh_buck_ctrl(ctrl, mode, false);
|
|
wcd_clsh_flyback_ctrl(ctrl, mode, false);
|
|
wcd_clsh_set_flyback_mode(comp, CLS_H_NORMAL);
|
|
wcd_clsh_set_buck_mode(comp, CLS_H_NORMAL);
|
|
}
|
|
}
|
|
|
|
static int _wcd_clsh_ctrl_set_state(struct wcd_clsh_ctrl *ctrl, int req_state,
|
|
bool is_enable, int mode)
|
|
{
|
|
switch (req_state) {
|
|
case WCD_CLSH_STATE_EAR:
|
|
wcd_clsh_state_ear(ctrl, req_state, is_enable, mode);
|
|
break;
|
|
case WCD_CLSH_STATE_HPHL:
|
|
wcd_clsh_state_hph_l(ctrl, req_state, is_enable, mode);
|
|
break;
|
|
case WCD_CLSH_STATE_HPHR:
|
|
wcd_clsh_state_hph_r(ctrl, req_state, is_enable, mode);
|
|
break;
|
|
case WCD_CLSH_STATE_LO:
|
|
wcd_clsh_state_lo(ctrl, req_state, is_enable, mode);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Function: wcd_clsh_is_state_valid
|
|
* Params: state
|
|
* Description:
|
|
* Provides information on valid states of Class H configuration
|
|
*/
|
|
static bool wcd_clsh_is_state_valid(int state)
|
|
{
|
|
switch (state) {
|
|
case WCD_CLSH_STATE_IDLE:
|
|
case WCD_CLSH_STATE_EAR:
|
|
case WCD_CLSH_STATE_HPHL:
|
|
case WCD_CLSH_STATE_HPHR:
|
|
case WCD_CLSH_STATE_LO:
|
|
return true;
|
|
default:
|
|
return false;
|
|
};
|
|
}
|
|
|
|
/*
|
|
* Function: wcd_clsh_fsm
|
|
* Params: ctrl, req_state, req_type, clsh_event
|
|
* Description:
|
|
* This function handles PRE DAC and POST DAC conditions of different devices
|
|
* and updates class H configuration of different combination of devices
|
|
* based on validity of their states. ctrl will contain current
|
|
* class h state information
|
|
*/
|
|
int wcd_clsh_ctrl_set_state(struct wcd_clsh_ctrl *ctrl,
|
|
enum wcd_clsh_event clsh_event,
|
|
int nstate,
|
|
enum wcd_clsh_mode mode)
|
|
{
|
|
struct snd_soc_component *comp = ctrl->comp;
|
|
|
|
if (nstate == ctrl->state)
|
|
return 0;
|
|
|
|
if (!wcd_clsh_is_state_valid(nstate)) {
|
|
dev_err(comp->dev, "Class-H not a valid new state:\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (clsh_event) {
|
|
case WCD_CLSH_EVENT_PRE_DAC:
|
|
_wcd_clsh_ctrl_set_state(ctrl, nstate, CLSH_REQ_ENABLE, mode);
|
|
break;
|
|
case WCD_CLSH_EVENT_POST_PA:
|
|
_wcd_clsh_ctrl_set_state(ctrl, nstate, CLSH_REQ_DISABLE, mode);
|
|
break;
|
|
}
|
|
|
|
ctrl->state = nstate;
|
|
ctrl->mode = mode;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int wcd_clsh_ctrl_get_state(struct wcd_clsh_ctrl *ctrl)
|
|
{
|
|
return ctrl->state;
|
|
}
|
|
|
|
struct wcd_clsh_ctrl *wcd_clsh_ctrl_alloc(struct snd_soc_component *comp,
|
|
int version)
|
|
{
|
|
struct wcd_clsh_ctrl *ctrl;
|
|
|
|
ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);
|
|
if (!ctrl)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
ctrl->state = WCD_CLSH_STATE_IDLE;
|
|
ctrl->comp = comp;
|
|
|
|
return ctrl;
|
|
}
|
|
|
|
void wcd_clsh_ctrl_free(struct wcd_clsh_ctrl *ctrl)
|
|
{
|
|
kfree(ctrl);
|
|
}
|