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Commit cc2e324d authored by Srinivas Kandagatla's avatar Srinivas Kandagatla Committed by Mark Brown
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ASoC: wcd9335: add CLASS-H Controller support 

CLASS-H controller/Amplifier is common accorss Qualcomm WCD codec series.
This patchset adds basic CLASS-H controller apis for WCD codecs after
wcd9335 to use.
Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: default avatarVinod Koul <vkoul@kernel.org>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 20aedafd
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sound/soc/codecs/Makefile
View file @ cc2e324d
...@@ -201,7 +201,7 @@ snd-soc-twl4030-objs := twl4030.o ...@@ -201,7 +201,7 @@ snd-soc-twl4030-objs := twl4030.o
snd-soc-twl6040-objs := twl6040.o snd-soc-twl6040-objs := twl6040.o
snd-soc-uda134x-objs := uda134x.o snd-soc-uda134x-objs := uda134x.o
snd-soc-uda1380-objs := uda1380.o snd-soc-uda1380-objs := uda1380.o
snd-soc-wcd9335-objs := wcd9335.o snd-soc-wcd9335-objs := wcd-clsh-v2.o wcd9335.o
snd-soc-wl1273-objs := wl1273.o snd-soc-wl1273-objs := wl1273.o
snd-soc-wm-adsp-objs := wm_adsp.o snd-soc-wm-adsp-objs := wm_adsp.o
snd-soc-wm0010-objs := wm0010.o snd-soc-wm0010-objs := wm0010.o
......
sound/soc/codecs/wcd-clsh-v2.c 0 → 100644
View file @ cc2e324d
// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
// Copyright (c) 2017-2018, Linaro Limited
#include <linux/slab.h>
#include <sound/soc.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include "wcd9335.h"
#include "wcd-clsh-v2.h"
struct wcd_clsh_ctrl {
int state;
int mode;
int flyback_users;
int buck_users;
int clsh_users;
int codec_version;
struct snd_soc_component *comp;
};
/* Class-H registers for codecs from and above WCD9335 */
#define WCD9XXX_A_CDC_RX0_RX_PATH_CFG0 WCD9335_REG(0xB, 0x42)
#define WCD9XXX_A_CDC_RX_PATH_CLSH_EN_MASK BIT(6)
#define WCD9XXX_A_CDC_RX_PATH_CLSH_ENABLE BIT(6)
#define WCD9XXX_A_CDC_RX_PATH_CLSH_DISABLE 0
#define WCD9XXX_A_CDC_RX1_RX_PATH_CFG0 WCD9335_REG(0xB, 0x56)
#define WCD9XXX_A_CDC_RX2_RX_PATH_CFG0 WCD9335_REG(0xB, 0x6A)
#define WCD9XXX_A_CDC_CLSH_K1_MSB WCD9335_REG(0xC, 0x08)
#define WCD9XXX_A_CDC_CLSH_K1_MSB_COEF_MASK GENMASK(3, 0)
#define WCD9XXX_A_CDC_CLSH_K1_LSB WCD9335_REG(0xC, 0x09)
#define WCD9XXX_A_CDC_CLSH_K1_LSB_COEF_MASK GENMASK(7, 0)
#define WCD9XXX_A_ANA_RX_SUPPLIES WCD9335_REG(0x6, 0x08)
#define WCD9XXX_A_ANA_RX_REGULATOR_MODE_MASK BIT(1)
#define WCD9XXX_A_ANA_RX_REGULATOR_MODE_CLS_H 0
#define WCD9XXX_A_ANA_RX_REGULATOR_MODE_CLS_AB BIT(1)
#define WCD9XXX_A_ANA_RX_VNEG_PWR_LVL_MASK BIT(2)
#define WCD9XXX_A_ANA_RX_VNEG_PWR_LVL_UHQA BIT(2)
#define WCD9XXX_A_ANA_RX_VNEG_PWR_LVL_DEFAULT 0
#define WCD9XXX_A_ANA_RX_VPOS_PWR_LVL_MASK BIT(3)
#define WCD9XXX_A_ANA_RX_VPOS_PWR_LVL_UHQA BIT(3)
#define WCD9XXX_A_ANA_RX_VPOS_PWR_LVL_DEFAULT 0
#define WCD9XXX_A_ANA_RX_VNEG_EN_MASK BIT(6)
#define WCD9XXX_A_ANA_RX_VNEG_EN_SHIFT 6
#define WCD9XXX_A_ANA_RX_VNEG_ENABLE BIT(6)
#define WCD9XXX_A_ANA_RX_VNEG_DISABLE 0
#define WCD9XXX_A_ANA_RX_VPOS_EN_MASK BIT(7)
#define WCD9XXX_A_ANA_RX_VPOS_EN_SHIFT 7
#define WCD9XXX_A_ANA_RX_VPOS_ENABLE BIT(7)
#define WCD9XXX_A_ANA_RX_VPOS_DISABLE 0
#define WCD9XXX_A_ANA_HPH WCD9335_REG(0x6, 0x09)
#define WCD9XXX_A_ANA_HPH_PWR_LEVEL_MASK GENMASK(3, 2)
#define WCD9XXX_A_ANA_HPH_PWR_LEVEL_UHQA 0x08
#define WCD9XXX_A_ANA_HPH_PWR_LEVEL_LP 0x04
#define WCD9XXX_A_ANA_HPH_PWR_LEVEL_NORMAL 0x0
#define WCD9XXX_A_CDC_CLSH_CRC WCD9335_REG(0xC, 0x01)
#define WCD9XXX_A_CDC_CLSH_CRC_CLK_EN_MASK BIT(0)
#define WCD9XXX_A_CDC_CLSH_CRC_CLK_ENABLE BIT(0)
#define WCD9XXX_A_CDC_CLSH_CRC_CLK_DISABLE 0
#define WCD9XXX_FLYBACK_EN WCD9335_REG(0x6, 0xA4)
#define WCD9XXX_FLYBACK_EN_DELAY_SEL_MASK GENMASK(6, 5)
#define WCD9XXX_FLYBACK_EN_DELAY_26P25_US 0x40
#define WCD9XXX_FLYBACK_EN_RESET_BY_EXT_MASK BIT(4)
#define WCD9XXX_FLYBACK_EN_PWDN_WITHOUT_DELAY BIT(4)
#define WCD9XXX_FLYBACK_EN_PWDN_WITH_DELAY 0
#define WCD9XXX_RX_BIAS_FLYB_BUFF WCD9335_REG(0x6, 0xC7)
#define WCD9XXX_RX_BIAS_FLYB_VNEG_5_UA_MASK GENMASK(7, 4)
#define WCD9XXX_RX_BIAS_FLYB_VPOS_5_UA_MASK GENMASK(0, 3)
#define WCD9XXX_HPH_L_EN WCD9335_REG(0x6, 0xD3)
#define WCD9XXX_HPH_CONST_SEL_L_MASK GENMASK(7, 3)
#define WCD9XXX_HPH_CONST_SEL_BYPASS 0
#define WCD9XXX_HPH_CONST_SEL_LP_PATH 0x40
#define WCD9XXX_HPH_CONST_SEL_HQ_PATH 0x80
#define WCD9XXX_HPH_R_EN WCD9335_REG(0x6, 0xD6)
#define WCD9XXX_HPH_REFBUFF_UHQA_CTL WCD9335_REG(0x6, 0xDD)
#define WCD9XXX_HPH_REFBUFF_UHQA_GAIN_MASK GENMASK(2, 0)
#define WCD9XXX_CLASSH_CTRL_VCL_2 WCD9335_REG(0x6, 0x9B)
#define WCD9XXX_CLASSH_CTRL_VCL_2_VREF_FILT_1_MASK GENMASK(5, 4)
#define WCD9XXX_CLASSH_CTRL_VCL_VREF_FILT_R_50KOHM 0x20
#define WCD9XXX_CLASSH_CTRL_VCL_VREF_FILT_R_0KOHM 0x0
#define WCD9XXX_CDC_RX1_RX_PATH_CTL WCD9335_REG(0xB, 0x55)
#define WCD9XXX_CDC_RX2_RX_PATH_CTL WCD9335_REG(0xB, 0x69)
#define WCD9XXX_CDC_CLK_RST_CTRL_MCLK_CONTROL WCD9335_REG(0xD, 0x41)
#define WCD9XXX_CDC_CLK_RST_CTRL_MCLK_EN_MASK BIT(0)
#define WCD9XXX_CDC_CLK_RST_CTRL_MCLK_11P3_EN_MASK BIT(1)
#define WCD9XXX_CLASSH_CTRL_CCL_1 WCD9335_REG(0x6, 0x9C)
#define WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_MASK GENMASK(7, 4)
#define WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_50MA 0x50
#define WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_30MA 0x30
#define CLSH_REQ_ENABLE true
#define CLSH_REQ_DISABLE false
#define WCD_USLEEP_RANGE 50
enum {
DAC_GAIN_0DB = 0,
DAC_GAIN_0P2DB,
DAC_GAIN_0P4DB,
DAC_GAIN_0P6DB,
DAC_GAIN_0P8DB,
DAC_GAIN_M0P2DB,
DAC_GAIN_M0P4DB,
DAC_GAIN_M0P6DB,
};
static inline void wcd_enable_clsh_block(struct wcd_clsh_ctrl *ctrl,
bool enable)
{
struct snd_soc_component *comp = ctrl->comp;
if ((enable && ++ctrl->clsh_users == 1) ||
(!enable && --ctrl->clsh_users == 0))
snd_soc_component_update_bits(comp, WCD9XXX_A_CDC_CLSH_CRC,
WCD9XXX_A_CDC_CLSH_CRC_CLK_EN_MASK,
enable);
if (ctrl->clsh_users < 0)
ctrl->clsh_users = 0;
}
static inline bool wcd_clsh_enable_status(struct snd_soc_component *comp)
{
return snd_soc_component_read32(comp, WCD9XXX_A_CDC_CLSH_CRC) &
WCD9XXX_A_CDC_CLSH_CRC_CLK_EN_MASK;
}
static inline void wcd_clsh_set_buck_mode(struct snd_soc_component *comp,
int mode)
{
/* set to HIFI */
if (mode == CLS_H_HIFI)
snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
WCD9XXX_A_ANA_RX_VPOS_PWR_LVL_MASK,
WCD9XXX_A_ANA_RX_VPOS_PWR_LVL_UHQA);
else
snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
WCD9XXX_A_ANA_RX_VPOS_PWR_LVL_MASK,
WCD9XXX_A_ANA_RX_VPOS_PWR_LVL_DEFAULT);
}
static inline void wcd_clsh_set_flyback_mode(struct snd_soc_component *comp,
int mode)
{
/* set to HIFI */
if (mode == CLS_H_HIFI)
snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
WCD9XXX_A_ANA_RX_VNEG_PWR_LVL_MASK,
WCD9XXX_A_ANA_RX_VNEG_PWR_LVL_UHQA);
else
snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
WCD9XXX_A_ANA_RX_VNEG_PWR_LVL_MASK,
WCD9XXX_A_ANA_RX_VNEG_PWR_LVL_DEFAULT);
}
static void wcd_clsh_buck_ctrl(struct wcd_clsh_ctrl *ctrl,
int mode,
bool enable)
{
struct snd_soc_component *comp = ctrl->comp;
/* enable/disable buck */
if ((enable && (++ctrl->buck_users == 1)) ||
(!enable && (--ctrl->buck_users == 0)))
snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
WCD9XXX_A_ANA_RX_VPOS_EN_MASK,
enable << WCD9XXX_A_ANA_RX_VPOS_EN_SHIFT);
/*
* 500us sleep is required after buck enable/disable
* as per HW requirement
*/
usleep_range(500, 500 + WCD_USLEEP_RANGE);
}
static void wcd_clsh_flyback_ctrl(struct wcd_clsh_ctrl *ctrl,
int mode,
bool enable)
{
struct snd_soc_component *comp = ctrl->comp;
/* enable/disable flyback */
if ((enable && (++ctrl->flyback_users == 1)) ||
(!enable && (--ctrl->flyback_users == 0))) {
snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
WCD9XXX_A_ANA_RX_VNEG_EN_MASK,
enable << WCD9XXX_A_ANA_RX_VNEG_EN_SHIFT);
/* 100usec delay is needed as per HW requirement */
usleep_range(100, 110);
}
/*
* 500us sleep is required after flyback enable/disable
* as per HW requirement
*/
usleep_range(500, 500 + WCD_USLEEP_RANGE);
}
static void wcd_clsh_set_gain_path(struct wcd_clsh_ctrl *ctrl, int mode)
{
struct snd_soc_component *comp = ctrl->comp;
int val = 0;
switch (mode) {
case CLS_H_NORMAL:
case CLS_AB:
val = WCD9XXX_HPH_CONST_SEL_BYPASS;
break;
case CLS_H_HIFI:
val = WCD9XXX_HPH_CONST_SEL_HQ_PATH;
break;
case CLS_H_LP:
val = WCD9XXX_HPH_CONST_SEL_LP_PATH;
break;
};
snd_soc_component_update_bits(comp, WCD9XXX_HPH_L_EN,
WCD9XXX_HPH_CONST_SEL_L_MASK,
val);
snd_soc_component_update_bits(comp, WCD9XXX_HPH_R_EN,
WCD9XXX_HPH_CONST_SEL_L_MASK,
val);
}
static void wcd_clsh_set_hph_mode(struct snd_soc_component *comp,
int mode)
{
int val = 0, gain = 0, res_val;
int ipeak = WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_50MA;
res_val = WCD9XXX_CLASSH_CTRL_VCL_VREF_FILT_R_0KOHM;
switch (mode) {
case CLS_H_NORMAL:
res_val = WCD9XXX_CLASSH_CTRL_VCL_VREF_FILT_R_50KOHM;
val = WCD9XXX_A_ANA_HPH_PWR_LEVEL_NORMAL;
gain = DAC_GAIN_0DB;
ipeak = WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_50MA;
break;
case CLS_AB:
val = WCD9XXX_A_ANA_HPH_PWR_LEVEL_NORMAL;
gain = DAC_GAIN_0DB;
ipeak = WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_50MA;
break;
case CLS_H_HIFI:
val = WCD9XXX_A_ANA_HPH_PWR_LEVEL_UHQA;
gain = DAC_GAIN_M0P2DB;
ipeak = WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_50MA;
break;
case CLS_H_LP:
val = WCD9XXX_A_ANA_HPH_PWR_LEVEL_LP;
ipeak = WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_30MA;
break;
};
snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_HPH,
WCD9XXX_A_ANA_HPH_PWR_LEVEL_MASK, val);
snd_soc_component_update_bits(comp, WCD9XXX_CLASSH_CTRL_VCL_2,
WCD9XXX_CLASSH_CTRL_VCL_2_VREF_FILT_1_MASK,
res_val);
if (mode != CLS_H_LP)
snd_soc_component_update_bits(comp,
WCD9XXX_HPH_REFBUFF_UHQA_CTL,
WCD9XXX_HPH_REFBUFF_UHQA_GAIN_MASK,
gain);
snd_soc_component_update_bits(comp, WCD9XXX_CLASSH_CTRL_CCL_1,
WCD9XXX_CLASSH_CTRL_CCL_1_DELTA_IPEAK_MASK,
ipeak);
}
static void wcd_clsh_set_flyback_current(struct snd_soc_component *comp,
int mode)
{
snd_soc_component_update_bits(comp, WCD9XXX_RX_BIAS_FLYB_BUFF,
WCD9XXX_RX_BIAS_FLYB_VPOS_5_UA_MASK, 0x0A);
snd_soc_component_update_bits(comp, WCD9XXX_RX_BIAS_FLYB_BUFF,
WCD9XXX_RX_BIAS_FLYB_VNEG_5_UA_MASK, 0x0A);
/* Sleep needed to avoid click and pop as per HW requirement */
usleep_range(100, 110);
}
static void wcd_clsh_set_buck_regulator_mode(struct snd_soc_component *comp,
int mode)
{
if (mode == CLS_AB)
snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
WCD9XXX_A_ANA_RX_REGULATOR_MODE_MASK,
WCD9XXX_A_ANA_RX_REGULATOR_MODE_CLS_AB);
else
snd_soc_component_update_bits(comp, WCD9XXX_A_ANA_RX_SUPPLIES,
WCD9XXX_A_ANA_RX_REGULATOR_MODE_MASK,
WCD9XXX_A_ANA_RX_REGULATOR_MODE_CLS_H);
}
static void wcd_clsh_state_lo(struct wcd_clsh_ctrl *ctrl, int req_state,
bool is_enable, int mode)
{
struct snd_soc_component *comp = ctrl->comp;
if (mode != CLS_AB) {
dev_err(comp->dev, "%s: LO cannot be in this mode: %d\n",
__func__, mode);
return;
}
if (is_enable) {
wcd_clsh_set_buck_regulator_mode(comp, mode);
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 {
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);
wcd_clsh_set_buck_regulator_mode(comp, CLS_H_NORMAL);
}
}
static void wcd_clsh_state_hph_r(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_r\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_RX2_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_RX2_RX_PATH_CFG0,
WCD9XXX_A_CDC_RX_PATH_CLSH_EN_MASK,
WCD9XXX_A_CDC_RX_PATH_CLSH_DISABLE);
wcd_enable_clsh_block(ctrl, false);
}
/* buck and flyback set to default mode and disable */
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_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;
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);
}
sound/soc/codecs/wcd-clsh-v2.h 0 → 100644
View file @ cc2e324d
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _WCD_CLSH_V2_H_
#define _WCD_CLSH_V2_H_
#include <sound/soc.h>
enum wcd_clsh_event {
WCD_CLSH_EVENT_PRE_DAC = 1,
WCD_CLSH_EVENT_POST_PA,
};
/*
* 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: Lineout mode
*/
#define WCD_CLSH_STATE_IDLE 0
#define WCD_CLSH_STATE_EAR BIT(0)
#define WCD_CLSH_STATE_HPHL BIT(1)
#define WCD_CLSH_STATE_HPHR BIT(2)
#define WCD_CLSH_STATE_LO BIT(3)
#define WCD_CLSH_STATE_MAX 4
#define NUM_CLSH_STATES_V2 BIT(WCD_CLSH_STATE_MAX)
enum wcd_clsh_mode {
CLS_H_NORMAL = 0, /* Class-H Default */
CLS_H_HIFI, /* Class-H HiFi */
CLS_H_LP, /* Class-H Low Power */
CLS_AB, /* Class-AB */
CLS_H_LOHIFI, /* LoHIFI */
CLS_NONE, /* None of the above modes */
};
struct wcd_clsh_ctrl;
extern struct wcd_clsh_ctrl *wcd_clsh_ctrl_alloc(
struct snd_soc_component *component,
int version);
extern void wcd_clsh_ctrl_free(struct wcd_clsh_ctrl *ctrl);
extern int wcd_clsh_ctrl_get_state(struct wcd_clsh_ctrl *ctrl);
extern int wcd_clsh_ctrl_set_state(struct wcd_clsh_ctrl *ctrl,
enum wcd_clsh_event event,
int state,
enum wcd_clsh_mode mode);
#endif /* _WCD_CLSH_V2_H_ */
sound/soc/codecs/wcd9335.c
View file @ cc2e324d
...@@ -22,6 +22,7 @@ ...@@ -22,6 +22,7 @@
#include <sound/tlv.h> #include <sound/tlv.h>
#include <sound/info.h> #include <sound/info.h>
#include "wcd9335.h" #include "wcd9335.h"
#include "wcd-clsh-v2.h"
#define WCD9335_RATES_MASK (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\ #define WCD9335_RATES_MASK (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\
SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000 |\ SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000 |\
...@@ -181,6 +182,7 @@ struct wcd9335_codec { ...@@ -181,6 +182,7 @@ struct wcd9335_codec {
int sido_ccl_cnt; int sido_ccl_cnt;
enum wcd_clock_type clk_type; enum wcd_clock_type clk_type;
struct wcd_clsh_ctrl *clsh_ctrl;
u32 hph_mode; u32 hph_mode;
int intr1; int intr1;
int reset_gpio; int reset_gpio;
...@@ -1109,6 +1111,13 @@ static int wcd9335_codec_probe(struct snd_soc_component *component) ...@@ -1109,6 +1111,13 @@ static int wcd9335_codec_probe(struct snd_soc_component *component)
int i; int i;
snd_soc_component_init_regmap(component, wcd->regmap); snd_soc_component_init_regmap(component, wcd->regmap);
/* Class-H Init*/
wcd->clsh_ctrl = wcd_clsh_ctrl_alloc(component, wcd->version);
if (IS_ERR(wcd->clsh_ctrl))
return PTR_ERR(wcd->clsh_ctrl);
/* Default HPH Mode to Class-H HiFi */
wcd->hph_mode = CLS_H_HIFI;
wcd->component = component; wcd->component = component;
wcd9335_codec_init(component); wcd9335_codec_init(component);
...@@ -1123,6 +1132,7 @@ static void wcd9335_codec_remove(struct snd_soc_component *comp) ...@@ -1123,6 +1132,7 @@ static void wcd9335_codec_remove(struct snd_soc_component *comp)
{ {
struct wcd9335_codec *wcd = dev_get_drvdata(comp->dev); struct wcd9335_codec *wcd = dev_get_drvdata(comp->dev);
wcd_clsh_ctrl_free(wcd->clsh_ctrl);
free_irq(regmap_irq_get_virq(wcd->irq_data, WCD9335_IRQ_SLIMBUS), wcd); free_irq(regmap_irq_get_virq(wcd->irq_data, WCD9335_IRQ_SLIMBUS), wcd);
} }
......
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