| /* Copyright (c) 2015-2016, 2018, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/slab.h> |
| #include <linux/of_gpio.h> |
| #include <linux/platform_device.h> |
| #include <linux/device.h> |
| #include <linux/printk.h> |
| #include <linux/bitops.h> |
| #include <linux/regulator/consumer.h> |
| #include <linux/pm_runtime.h> |
| #include <soc/soundwire.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/soc.h> |
| #include <sound/soc-dapm.h> |
| #include <sound/tlv.h> |
| #include <dsp/q6afe-v2.h> |
| #include <linux/delay.h> |
| #include <linux/i2c.h> |
| #include <linux/kernel.h> |
| #include <linux/gpio.h> |
| #include <soc/internal.h> |
| #include <linux/regmap.h> |
| #include "msm-cdc-pinctrl.h" |
| #include "wsa881x-analog.h" |
| #include "wsa881x-temp-sensor.h" |
| |
| #define SPK_GAIN_12DB 4 |
| #define WIDGET_NAME_MAX_SIZE 80 |
| |
| /* |
| * Private data Structure for wsa881x. All parameters related to |
| * WSA881X codec needs to be defined here. |
| */ |
| struct wsa881x_pdata { |
| struct regmap *regmap[2]; |
| struct i2c_client *client[2]; |
| struct snd_soc_codec *codec; |
| |
| /* track wsa881x status during probe */ |
| int status; |
| bool boost_enable; |
| bool visense_enable; |
| int spk_pa_gain; |
| struct i2c_msg xfer_msg[2]; |
| struct mutex xfer_lock; |
| bool regmap_flag; |
| bool wsa_active; |
| int index; |
| int (*enable_mclk)(struct snd_soc_card *, bool); |
| struct wsa881x_tz_priv tz_pdata; |
| int bg_cnt; |
| int clk_cnt; |
| int enable_cnt; |
| int version; |
| struct mutex bg_lock; |
| struct mutex res_lock; |
| struct delayed_work ocp_ctl_work; |
| struct device_node *wsa_vi_gpio_p; |
| struct device_node *wsa_clk_gpio_p; |
| struct device_node *wsa_reset_gpio_p; |
| }; |
| |
| enum { |
| WSA881X_STATUS_PROBING, |
| WSA881X_STATUS_I2C, |
| }; |
| |
| #define WSA881X_OCP_CTL_TIMER_SEC 2 |
| #define WSA881X_OCP_CTL_TEMP_CELSIUS 25 |
| #define WSA881X_OCP_CTL_POLL_TIMER_SEC 60 |
| |
| static int wsa881x_ocp_poll_timer_sec = WSA881X_OCP_CTL_POLL_TIMER_SEC; |
| module_param(wsa881x_ocp_poll_timer_sec, int, 0664); |
| MODULE_PARM_DESC(wsa881x_ocp_poll_timer_sec, "timer for ocp ctl polling"); |
| |
| static int32_t wsa881x_resource_acquire(struct snd_soc_codec *codec, |
| bool enable); |
| |
| const char *wsa_tz_names[] = {"wsa881x.0e", "wsa881x.0f"}; |
| |
| struct wsa881x_pdata wsa_pdata[MAX_WSA881X_DEVICE]; |
| |
| static bool pinctrl_init; |
| |
| static int wsa881x_populate_dt_pdata(struct device *dev, int wsa881x_index); |
| static int wsa881x_reset(struct wsa881x_pdata *pdata, bool enable); |
| static int wsa881x_startup(struct wsa881x_pdata *pdata); |
| static int wsa881x_shutdown(struct wsa881x_pdata *pdata); |
| |
| static int delay_array_msec[] = {10, 20, 30, 40, 50}; |
| |
| static int wsa881x_i2c_addr = -1; |
| static int wsa881x_probing_count; |
| static int wsa881x_presence_count; |
| |
| static const char * const wsa881x_spk_pa_gain_text[] = { |
| "POS_13P5_DB", "POS_12_DB", "POS_10P5_DB", "POS_9_DB", "POS_7P5_DB", |
| "POS_6_DB", "POS_4P5_DB", "POS_3_DB", "POS_1P5_DB", "POS_0_DB"}; |
| |
| static const struct soc_enum wsa881x_spk_pa_gain_enum[] = { |
| SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(wsa881x_spk_pa_gain_text), |
| wsa881x_spk_pa_gain_text), |
| }; |
| |
| static int wsa881x_spk_pa_gain_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| ucontrol->value.integer.value[0] = wsa881x->spk_pa_gain; |
| |
| dev_dbg(codec->dev, "%s: spk_pa_gain = %ld\n", __func__, |
| ucontrol->value.integer.value[0]); |
| |
| return 0; |
| } |
| |
| static int wsa881x_spk_pa_gain_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| if (ucontrol->value.integer.value[0] < 0 || |
| ucontrol->value.integer.value[0] > 0xC) { |
| dev_err(codec->dev, "%s: Unsupported gain val %ld\n", |
| __func__, ucontrol->value.integer.value[0]); |
| return -EINVAL; |
| } |
| wsa881x->spk_pa_gain = ucontrol->value.integer.value[0]; |
| dev_dbg(codec->dev, "%s: ucontrol->value.integer.value[0] = %ld\n", |
| __func__, ucontrol->value.integer.value[0]); |
| |
| return 0; |
| } |
| |
| static int get_i2c_wsa881x_device_index(u16 reg) |
| { |
| u16 mask = 0x0f00; |
| int value = 0; |
| |
| value = ((reg & mask) >> 8) & 0x000f; |
| |
| switch (value) { |
| case 0: |
| return 0; |
| case 1: |
| return 1; |
| default: |
| break; |
| } |
| return -EINVAL; |
| } |
| |
| static int wsa881x_i2c_write_device(struct wsa881x_pdata *wsa881x, |
| unsigned int reg, unsigned int val) |
| { |
| int i = 0, rc = 0; |
| int wsa881x_index; |
| struct i2c_msg *msg; |
| int ret = 0; |
| int bytes = 1; |
| u8 reg_addr = 0; |
| u8 data[bytes + 1]; |
| |
| wsa881x_index = get_i2c_wsa881x_device_index(reg); |
| if (wsa881x_index < 0) { |
| pr_err_ratelimited("%s:invalid register to write\n", __func__); |
| return -EINVAL; |
| } |
| if (wsa881x->regmap_flag) { |
| rc = regmap_write(wsa881x->regmap[wsa881x_index], reg, val); |
| for (i = 0; rc && i < ARRAY_SIZE(delay_array_msec); i++) { |
| pr_err_ratelimited("Failed writing reg=%u-retry(%d)\n", |
| reg, i); |
| /* retry after delay of increasing order */ |
| msleep(delay_array_msec[i]); |
| rc = regmap_write(wsa881x->regmap[wsa881x_index], |
| reg, val); |
| } |
| if (rc) |
| pr_err_ratelimited("Failed writing reg=%u rc=%d\n", |
| reg, rc); |
| else |
| pr_debug("write success register = %x val = %x\n", |
| reg, val); |
| } else { |
| reg_addr = (u8)reg; |
| msg = &wsa881x->xfer_msg[0]; |
| msg->addr = wsa881x->client[wsa881x_index]->addr; |
| msg->len = bytes + 1; |
| msg->flags = 0; |
| data[0] = reg; |
| data[1] = (u8)val; |
| msg->buf = data; |
| ret = i2c_transfer(wsa881x->client[wsa881x_index]->adapter, |
| wsa881x->xfer_msg, 1); |
| /* Try again if the write fails */ |
| if (ret != 1) { |
| ret = i2c_transfer( |
| wsa881x->client[wsa881x_index]->adapter, |
| wsa881x->xfer_msg, 1); |
| if (ret != 1) { |
| pr_err_ratelimited("failed to write the device\n"); |
| return ret; |
| } |
| } |
| pr_debug("write success reg = %x val = %x\n", reg, data[1]); |
| } |
| return rc; |
| } |
| |
| static int wsa881x_i2c_read_device(struct wsa881x_pdata *wsa881x, |
| unsigned int reg) |
| { |
| int wsa881x_index; |
| int i = 0, rc = 0; |
| unsigned int val; |
| struct i2c_msg *msg; |
| int ret = 0; |
| u8 reg_addr = 0; |
| u8 dest[5]; |
| |
| wsa881x_index = get_i2c_wsa881x_device_index(reg); |
| if (wsa881x_index < 0) { |
| pr_err_ratelimited("%s:invalid register to read\n", __func__); |
| return -EINVAL; |
| } |
| if (wsa881x->regmap_flag) { |
| rc = regmap_read(wsa881x->regmap[wsa881x_index], reg, &val); |
| for (i = 0; rc && i < ARRAY_SIZE(delay_array_msec); i++) { |
| pr_err_ratelimited("Failed reading reg=%u - retry(%d)\n", |
| reg, i); |
| /* retry after delay of increasing order */ |
| msleep(delay_array_msec[i]); |
| rc = regmap_read(wsa881x->regmap[wsa881x_index], |
| reg, &val); |
| } |
| if (rc) { |
| pr_err_ratelimited("Failed reading reg=%u rc=%d\n", |
| reg, rc); |
| return rc; |
| } |
| pr_debug("read success reg = %x val = %x\n", |
| reg, val); |
| } else { |
| reg_addr = (u8)reg; |
| msg = &wsa881x->xfer_msg[0]; |
| msg->addr = wsa881x->client[wsa881x_index]->addr; |
| msg->len = 1; |
| msg->flags = 0; |
| msg->buf = ®_addr; |
| |
| msg = &wsa881x->xfer_msg[1]; |
| msg->addr = wsa881x->client[wsa881x_index]->addr; |
| msg->len = 1; |
| msg->flags = I2C_M_RD; |
| msg->buf = dest; |
| ret = i2c_transfer(wsa881x->client[wsa881x_index]->adapter, |
| wsa881x->xfer_msg, 2); |
| |
| /* Try again if read fails first time */ |
| if (ret != 2) { |
| ret = i2c_transfer( |
| wsa881x->client[wsa881x_index]->adapter, |
| wsa881x->xfer_msg, 2); |
| if (ret != 2) { |
| pr_err_ratelimited("failed to read wsa register:%d\n", |
| reg); |
| return ret; |
| } |
| } |
| val = dest[0]; |
| } |
| return val; |
| } |
| |
| static unsigned int wsa881x_i2c_read(struct snd_soc_codec *codec, |
| unsigned int reg) |
| { |
| struct wsa881x_pdata *wsa881x; |
| int wsa881x_index; |
| |
| if (codec == NULL) { |
| pr_err_ratelimited("%s: invalid codec\n", __func__); |
| return -EINVAL; |
| } |
| wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| wsa881x_index = get_i2c_wsa881x_device_index(reg); |
| if (wsa881x_index < 0) { |
| pr_err_ratelimited("%s:invalid register to read\n", __func__); |
| return -EINVAL; |
| } |
| return wsa881x_i2c_read_device(wsa881x, reg); |
| } |
| |
| static int wsa881x_i2c_write(struct snd_soc_codec *codec, unsigned int reg, |
| unsigned int val) |
| { |
| struct wsa881x_pdata *wsa881x; |
| int wsa881x_index; |
| |
| if (codec == NULL) { |
| pr_err_ratelimited("%s: invalid codec\n", __func__); |
| return -EINVAL; |
| } |
| wsa881x = snd_soc_codec_get_drvdata(codec); |
| wsa881x_index = get_i2c_wsa881x_device_index(reg); |
| if (wsa881x_index < 0) { |
| pr_err_ratelimited("%s:invalid register to read\n", __func__); |
| return -EINVAL; |
| } |
| return wsa881x_i2c_write_device(wsa881x, reg, val); |
| } |
| |
| static int wsa881x_i2c_get_client_index(struct i2c_client *client, |
| int *wsa881x_index) |
| { |
| int ret = 0; |
| |
| switch (client->addr) { |
| case WSA881X_I2C_SPK0_SLAVE0_ADDR: |
| case WSA881X_I2C_SPK0_SLAVE1_ADDR: |
| *wsa881x_index = WSA881X_I2C_SPK0_SLAVE0; |
| break; |
| case WSA881X_I2C_SPK1_SLAVE0_ADDR: |
| case WSA881X_I2C_SPK1_SLAVE1_ADDR: |
| *wsa881x_index = WSA881X_I2C_SPK1_SLAVE0; |
| break; |
| default: |
| ret = -EINVAL; |
| break; |
| } |
| return ret; |
| } |
| |
| static int wsa881x_boost_ctrl(struct snd_soc_codec *codec, bool enable) |
| { |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| pr_debug("%s: enable:%d\n", __func__, enable); |
| if (enable) { |
| if (!WSA881X_IS_2_0(wsa881x->version)) { |
| snd_soc_update_bits(codec, WSA881X_ANA_CTL, |
| 0x01, 0x01); |
| snd_soc_update_bits(codec, WSA881X_ANA_CTL, |
| 0x04, 0x04); |
| snd_soc_update_bits(codec, WSA881X_BOOST_PS_CTL, |
| 0x40, 0x00); |
| snd_soc_update_bits(codec, WSA881X_BOOST_PRESET_OUT1, |
| 0xF0, 0xB0); |
| snd_soc_update_bits(codec, WSA881X_BOOST_ZX_CTL, |
| 0x20, 0x00); |
| snd_soc_update_bits(codec, WSA881X_BOOST_EN_CTL, |
| 0x80, 0x80); |
| } else { |
| snd_soc_update_bits(codec, WSA881X_BOOST_LOOP_STABILITY, |
| 0x03, 0x03); |
| snd_soc_update_bits(codec, WSA881X_BOOST_MISC2_CTL, |
| 0xFF, 0x14); |
| snd_soc_update_bits(codec, WSA881X_BOOST_START_CTL, |
| 0x80, 0x80); |
| snd_soc_update_bits(codec, WSA881X_BOOST_START_CTL, |
| 0x03, 0x00); |
| snd_soc_update_bits(codec, |
| WSA881X_BOOST_SLOPE_COMP_ISENSE_FB, |
| 0x0C, 0x04); |
| snd_soc_update_bits(codec, |
| WSA881X_BOOST_SLOPE_COMP_ISENSE_FB, |
| 0x03, 0x00); |
| snd_soc_update_bits(codec, WSA881X_BOOST_PRESET_OUT1, |
| 0xF0, 0x70); |
| snd_soc_update_bits(codec, WSA881X_ANA_CTL, 0x03, 0x01); |
| snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN, |
| 0x08, 0x08); |
| snd_soc_update_bits(codec, WSA881X_ANA_CTL, 0x04, 0x04); |
| snd_soc_update_bits(codec, WSA881X_BOOST_CURRENT_LIMIT, |
| 0x0F, 0x08); |
| snd_soc_update_bits(codec, WSA881X_BOOST_EN_CTL, |
| 0x80, 0x80); |
| } |
| /* For WSA8810, start-up time is 1500us as per qcrg sequence */ |
| usleep_range(1500, 1510); |
| } else { |
| /* ENSURE: Class-D amp is shutdown. CLK is still on */ |
| snd_soc_update_bits(codec, WSA881X_BOOST_EN_CTL, 0x80, 0x00); |
| /* boost settle time is 1500us as per qcrg sequence */ |
| usleep_range(1500, 1510); |
| } |
| return 0; |
| } |
| |
| static int wsa881x_visense_txfe_ctrl(struct snd_soc_codec *codec, bool enable, |
| u8 isense1_gain, u8 isense2_gain, |
| u8 vsense_gain) |
| { |
| u8 value = 0; |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| pr_debug("%s: enable:%d\n", __func__, enable); |
| |
| if (enable) { |
| if (WSA881X_IS_2_0(wsa881x->version)) { |
| snd_soc_update_bits(codec, WSA881X_OTP_REG_28, |
| 0x3F, 0x3A); |
| snd_soc_update_bits(codec, WSA881X_BONGO_RESRV_REG1, |
| 0xFF, 0xB2); |
| snd_soc_update_bits(codec, WSA881X_BONGO_RESRV_REG2, |
| 0xFF, 0x05); |
| } |
| snd_soc_update_bits(codec, WSA881X_SPKR_PROT_FE_VSENSE_VCM, |
| 0x08, 0x00); |
| if (WSA881X_IS_2_0(wsa881x->version)) { |
| snd_soc_update_bits(codec, WSA881X_SPKR_PROT_ATEST2, |
| 0x1C, 0x04); |
| } else { |
| snd_soc_update_bits(codec, WSA881X_SPKR_PROT_ATEST2, |
| 0x08, 0x08); |
| snd_soc_update_bits(codec, WSA881X_SPKR_PROT_ATEST2, |
| 0x02, 0x02); |
| } |
| value = ((isense2_gain << 6) | (isense1_gain << 4) | |
| (vsense_gain << 3)); |
| snd_soc_update_bits(codec, WSA881X_SPKR_PROT_FE_GAIN, |
| 0xF8, value); |
| snd_soc_update_bits(codec, WSA881X_SPKR_PROT_FE_GAIN, |
| 0x01, 0x01); |
| } else { |
| if (WSA881X_IS_2_0(wsa881x->version)) |
| snd_soc_update_bits(codec, |
| WSA881X_SPKR_PROT_FE_VSENSE_VCM, 0x10, 0x10); |
| else |
| snd_soc_update_bits(codec, |
| WSA881X_SPKR_PROT_FE_VSENSE_VCM, 0x08, 0x08); |
| /* |
| * 200us sleep is needed after visense txfe disable as per |
| * HW requirement. |
| */ |
| usleep_range(200, 210); |
| |
| snd_soc_update_bits(codec, WSA881X_SPKR_PROT_FE_GAIN, |
| 0x01, 0x00); |
| } |
| return 0; |
| } |
| |
| static int wsa881x_visense_adc_ctrl(struct snd_soc_codec *codec, bool enable) |
| { |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| pr_debug("%s: enable:%d\n", __func__, enable); |
| if (enable) { |
| if (!WSA881X_IS_2_0(wsa881x->version)) |
| snd_soc_update_bits(codec, WSA881X_ADC_SEL_IBIAS, |
| 0x70, 0x40); |
| snd_soc_update_bits(codec, WSA881X_ADC_EN_SEL_IBIAS, |
| 0x07, 0x04); |
| snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_V, 0x80, 0x80); |
| snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_I, 0x80, 0x80); |
| } else { |
| /* Ensure: Speaker Protection has been stopped */ |
| snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_V, 0x80, 0x00); |
| snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_I, 0x80, 0x00); |
| } |
| |
| return 0; |
| } |
| |
| static void wsa881x_bandgap_ctrl(struct snd_soc_codec *codec, bool enable) |
| { |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| dev_dbg(codec->dev, "%s: enable:%d, bg_count:%d\n", __func__, |
| enable, wsa881x->bg_cnt); |
| mutex_lock(&wsa881x->bg_lock); |
| if (enable) { |
| ++wsa881x->bg_cnt; |
| if (wsa881x->bg_cnt == 1) { |
| snd_soc_update_bits(codec, WSA881X_TEMP_OP, |
| 0x08, 0x08); |
| /* 400usec sleep is needed as per HW requirement */ |
| usleep_range(400, 410); |
| snd_soc_update_bits(codec, WSA881X_TEMP_OP, 0x04, 0x04); |
| } |
| } else { |
| --wsa881x->bg_cnt; |
| if (wsa881x->bg_cnt <= 0) { |
| WARN_ON(wsa881x->bg_cnt < 0); |
| wsa881x->bg_cnt = 0; |
| snd_soc_update_bits(codec, WSA881X_TEMP_OP, 0x04, 0x00); |
| snd_soc_update_bits(codec, WSA881X_TEMP_OP, 0x08, 0x00); |
| } |
| } |
| mutex_unlock(&wsa881x->bg_lock); |
| } |
| |
| static void wsa881x_clk_ctrl(struct snd_soc_codec *codec, bool enable) |
| { |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| dev_dbg(codec->dev, "%s:ss enable:%d, clk_count:%d\n", __func__, |
| enable, wsa881x->clk_cnt); |
| mutex_lock(&wsa881x->res_lock); |
| if (enable) { |
| ++wsa881x->clk_cnt; |
| if (wsa881x->clk_cnt == 1) { |
| snd_soc_write(codec, WSA881X_CDC_RST_CTL, 0x02); |
| snd_soc_write(codec, WSA881X_CDC_RST_CTL, 0x03); |
| snd_soc_write(codec, WSA881X_CLOCK_CONFIG, 0x01); |
| |
| snd_soc_write(codec, WSA881X_CDC_DIG_CLK_CTL, 0x01); |
| snd_soc_write(codec, WSA881X_CDC_ANA_CLK_CTL, 0x01); |
| |
| } |
| } else { |
| --wsa881x->clk_cnt; |
| if (wsa881x->clk_cnt <= 0) { |
| WARN_ON(wsa881x->clk_cnt < 0); |
| wsa881x->clk_cnt = 0; |
| snd_soc_write(codec, WSA881X_CDC_ANA_CLK_CTL, 0x00); |
| snd_soc_write(codec, WSA881X_CDC_DIG_CLK_CTL, 0x00); |
| if (WSA881X_IS_2_0(wsa881x->version)) |
| snd_soc_update_bits(codec, |
| WSA881X_CDC_TOP_CLK_CTL, 0x01, 0x00); |
| } |
| } |
| mutex_unlock(&wsa881x->res_lock); |
| } |
| |
| static int wsa881x_rdac_ctrl(struct snd_soc_codec *codec, bool enable) |
| { |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| pr_debug("%s: enable:%d\n", __func__, enable); |
| if (enable) { |
| snd_soc_update_bits(codec, WSA881X_ANA_CTL, 0x08, 0x00); |
| snd_soc_update_bits(codec, WSA881X_SPKR_DRV_GAIN, 0x08, 0x08); |
| snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x20, 0x20); |
| snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x20, 0x00); |
| snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x40, 0x40); |
| snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x80, 0x80); |
| if (WSA881X_IS_2_0(wsa881x->version)) { |
| snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_CAL, |
| 0x01, 0x01); |
| snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL, |
| 0x30, 0x30); |
| snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL, |
| 0x0C, 0x00); |
| } |
| snd_soc_update_bits(codec, WSA881X_SPKR_DRV_GAIN, 0xF0, 0x40); |
| snd_soc_update_bits(codec, WSA881X_SPKR_MISC_CTL1, 0x01, 0x01); |
| } else { |
| /* Ensure class-D amp is off */ |
| snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x80, 0x00); |
| } |
| return 0; |
| } |
| |
| static int wsa881x_spkr_pa_ctrl(struct snd_soc_codec *codec, bool enable) |
| { |
| int ret = 0; |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| pr_debug("%s: enable:%d\n", __func__, enable); |
| if (enable) { |
| /* |
| * Ensure: Boost is enabled and stable, Analog input is up |
| * and outputting silence |
| */ |
| if (!WSA881X_IS_2_0(wsa881x->version)) { |
| snd_soc_update_bits(codec, WSA881X_ADC_EN_DET_TEST_I, |
| 0xFF, 0x01); |
| snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_V, |
| 0x02, 0x02); |
| snd_soc_update_bits(codec, WSA881X_ADC_EN_DET_TEST_V, |
| 0xFF, 0x10); |
| snd_soc_update_bits(codec, WSA881X_SPKR_PWRSTG_DBG, |
| 0xA0, 0xA0); |
| snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN, |
| 0x80, 0x80); |
| usleep_range(700, 710); |
| snd_soc_update_bits(codec, WSA881X_SPKR_PWRSTG_DBG, |
| 0x00, 0x00); |
| snd_soc_update_bits(codec, WSA881X_ADC_EN_DET_TEST_V, |
| 0xFF, 0x00); |
| snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_V, |
| 0x02, 0x00); |
| snd_soc_update_bits(codec, WSA881X_ADC_EN_DET_TEST_I, |
| 0xFF, 0x00); |
| } else |
| snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN, |
| 0x80, 0x80); |
| /* add 1000us delay as per qcrg */ |
| usleep_range(1000, 1010); |
| snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN, 0x01, 0x01); |
| if (WSA881X_IS_2_0(wsa881x->version)) |
| snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_CAL, |
| 0x01, 0x00); |
| usleep_range(1000, 1010); |
| snd_soc_update_bits(codec, WSA881X_SPKR_DRV_GAIN, 0xF0, |
| (wsa881x->spk_pa_gain << 4)); |
| if (wsa881x->visense_enable) { |
| ret = msm_cdc_pinctrl_select_active_state( |
| wsa881x->wsa_vi_gpio_p); |
| if (ret) { |
| pr_err("%s: gpio set cannot be activated %s\n", |
| __func__, "wsa_vi"); |
| return ret; |
| } |
| wsa881x_visense_txfe_ctrl(codec, true, |
| 0x00, 0x01, 0x00); |
| wsa881x_visense_adc_ctrl(codec, true); |
| } |
| } else { |
| /* |
| * Ensure: Boost is still on, Stream from Analog input and |
| * Speaker Protection has been stopped and input is at 0V |
| */ |
| if (WSA881X_IS_2_0(wsa881x->version)) { |
| snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_CAL, |
| 0x01, 0x01); |
| usleep_range(1000, 1010); |
| snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_CAL, |
| 0x01, 0x00); |
| msleep(20); |
| snd_soc_update_bits(codec, WSA881X_ANA_CTL, |
| 0x03, 0x00); |
| usleep_range(200, 210); |
| } |
| snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN, 0x80, 0x00); |
| } |
| return 0; |
| } |
| |
| static int wsa881x_get_boost(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| |
| struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| ucontrol->value.integer.value[0] = wsa881x->boost_enable; |
| return 0; |
| } |
| |
| static int wsa881x_set_boost(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| int value = ucontrol->value.integer.value[0]; |
| |
| dev_dbg(codec->dev, "%s: Boost enable current %d, new %d\n", |
| __func__, wsa881x->boost_enable, value); |
| wsa881x->boost_enable = value; |
| return 0; |
| } |
| |
| static int wsa881x_get_visense(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| |
| struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| ucontrol->value.integer.value[0] = wsa881x->visense_enable; |
| return 0; |
| } |
| |
| static int wsa881x_set_visense(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| int value = ucontrol->value.integer.value[0]; |
| |
| dev_dbg(codec->dev, "%s: VIsense enable current %d, new %d\n", |
| __func__, wsa881x->visense_enable, value); |
| wsa881x->visense_enable = value; |
| return 0; |
| } |
| |
| static const struct snd_kcontrol_new wsa881x_snd_controls[] = { |
| SOC_SINGLE_EXT("BOOST Switch", SND_SOC_NOPM, 0, 1, 0, |
| wsa881x_get_boost, wsa881x_set_boost), |
| |
| SOC_SINGLE_EXT("VISENSE Switch", SND_SOC_NOPM, 0, 1, 0, |
| wsa881x_get_visense, wsa881x_set_visense), |
| |
| SOC_ENUM_EXT("WSA_SPK PA Gain", wsa881x_spk_pa_gain_enum[0], |
| wsa881x_spk_pa_gain_get, wsa881x_spk_pa_gain_put), |
| }; |
| |
| static const char * const rdac_text[] = { |
| "ZERO", "Switch", |
| }; |
| |
| static const struct soc_enum rdac_enum = |
| SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(rdac_text), rdac_text); |
| |
| static const struct snd_kcontrol_new rdac_mux[] = { |
| SOC_DAPM_ENUM("RDAC", rdac_enum) |
| }; |
| |
| static int wsa881x_rdac_event(struct snd_soc_dapm_widget *w, |
| struct snd_kcontrol *kcontrol, int event) |
| { |
| struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| int ret = 0; |
| |
| dev_dbg(codec->dev, "%s: %s %d boost %d visense %d\n", |
| __func__, w->name, event, |
| wsa881x->boost_enable, wsa881x->visense_enable); |
| |
| switch (event) { |
| case SND_SOC_DAPM_PRE_PMU: |
| ret = wsa881x_startup(wsa881x); |
| if (ret) { |
| pr_err("%s: wsa startup failed ret: %d", __func__, ret); |
| return ret; |
| } |
| wsa881x_clk_ctrl(codec, true); |
| snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x02, 0x02); |
| if (!WSA881X_IS_2_0(wsa881x->version)) |
| snd_soc_update_bits(codec, WSA881X_BIAS_REF_CTRL, |
| 0x0F, 0x08); |
| wsa881x_bandgap_ctrl(codec, true); |
| if (!WSA881X_IS_2_0(wsa881x->version)) |
| snd_soc_update_bits(codec, WSA881X_SPKR_BBM_CTL, |
| 0x02, 0x02); |
| snd_soc_update_bits(codec, WSA881X_SPKR_MISC_CTL1, 0xC0, 0x80); |
| snd_soc_update_bits(codec, WSA881X_SPKR_MISC_CTL1, 0x06, 0x06); |
| if (!WSA881X_IS_2_0(wsa881x->version)) { |
| snd_soc_update_bits(codec, WSA881X_SPKR_MISC_CTL2, |
| 0x04, 0x04); |
| snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_INT, |
| 0x09, 0x09); |
| } |
| snd_soc_update_bits(codec, WSA881X_SPKR_PA_INT, 0xF0, 0x20); |
| if (WSA881X_IS_2_0(wsa881x->version)) |
| snd_soc_update_bits(codec, WSA881X_SPKR_PA_INT, |
| 0x0E, 0x0E); |
| if (wsa881x->boost_enable) |
| wsa881x_boost_ctrl(codec, true); |
| break; |
| case SND_SOC_DAPM_POST_PMU: |
| wsa881x_rdac_ctrl(codec, true); |
| break; |
| case SND_SOC_DAPM_PRE_PMD: |
| wsa881x_rdac_ctrl(codec, false); |
| if (wsa881x->visense_enable) { |
| wsa881x_visense_adc_ctrl(codec, false); |
| wsa881x_visense_txfe_ctrl(codec, false, |
| 0x00, 0x01, 0x00); |
| ret = msm_cdc_pinctrl_select_sleep_state( |
| wsa881x->wsa_vi_gpio_p); |
| if (ret) { |
| pr_err("%s: gpio set cannot be suspended %s\n", |
| __func__, "wsa_vi"); |
| return ret; |
| } |
| } |
| break; |
| case SND_SOC_DAPM_POST_PMD: |
| if (wsa881x->boost_enable) |
| wsa881x_boost_ctrl(codec, false); |
| wsa881x_clk_ctrl(codec, false); |
| wsa881x_bandgap_ctrl(codec, false); |
| ret = wsa881x_shutdown(wsa881x); |
| if (ret < 0) { |
| pr_err("%s: wsa shutdown failed ret: %d", |
| __func__, ret); |
| return ret; |
| } |
| break; |
| default: |
| pr_err("%s: invalid event:%d\n", __func__, event); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static void wsa881x_ocp_ctl_work(struct work_struct *work) |
| { |
| struct wsa881x_pdata *wsa881x; |
| struct delayed_work *dwork; |
| struct snd_soc_codec *codec; |
| int temp_val; |
| |
| dwork = to_delayed_work(work); |
| wsa881x = container_of(dwork, struct wsa881x_pdata, ocp_ctl_work); |
| |
| if (!wsa881x) |
| return; |
| |
| codec = wsa881x->codec; |
| wsa881x_get_temp(wsa881x->tz_pdata.tz_dev, &temp_val); |
| dev_dbg(codec->dev, " temp = %d\n", temp_val); |
| |
| if (temp_val <= WSA881X_OCP_CTL_TEMP_CELSIUS) |
| snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL, 0xC0, 0x00); |
| else |
| snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL, 0xC0, 0xC0); |
| |
| schedule_delayed_work(&wsa881x->ocp_ctl_work, |
| msecs_to_jiffies(wsa881x_ocp_poll_timer_sec * 1000)); |
| } |
| |
| static int wsa881x_spkr_pa_event(struct snd_soc_dapm_widget *w, |
| struct snd_kcontrol *kcontrol, int event) |
| { |
| struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| pr_debug("%s: %s %d\n", __func__, w->name, event); |
| |
| switch (event) { |
| case SND_SOC_DAPM_PRE_PMU: |
| snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL, 0xC0, 0x80); |
| break; |
| case SND_SOC_DAPM_POST_PMU: |
| wsa881x_spkr_pa_ctrl(codec, true); |
| schedule_delayed_work(&wsa881x->ocp_ctl_work, |
| msecs_to_jiffies(WSA881X_OCP_CTL_TIMER_SEC * 1000)); |
| break; |
| case SND_SOC_DAPM_PRE_PMD: |
| wsa881x_spkr_pa_ctrl(codec, false); |
| break; |
| case SND_SOC_DAPM_POST_PMD: |
| cancel_delayed_work_sync(&wsa881x->ocp_ctl_work); |
| snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL, 0xC0, 0xC0); |
| break; |
| default: |
| pr_err("%s: invalid event:%d\n", __func__, event); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| |
| static const struct snd_soc_dapm_widget wsa881x_dapm_widgets[] = { |
| SND_SOC_DAPM_INPUT("WSA_IN"), |
| |
| SND_SOC_DAPM_DAC_E("RDAC Analog", NULL, SND_SOC_NOPM, 0, 0, |
| wsa881x_rdac_event, |
| SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | |
| SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD), |
| |
| SND_SOC_DAPM_MUX("WSA_RDAC", SND_SOC_NOPM, 0, 0, |
| rdac_mux), |
| |
| SND_SOC_DAPM_PGA_S("WSA_SPKR PGA", 1, SND_SOC_NOPM, 0, 0, |
| wsa881x_spkr_pa_event, |
| SND_SOC_DAPM_PRE_PMU | |
| SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD | |
| SND_SOC_DAPM_POST_PMD), |
| |
| SND_SOC_DAPM_OUTPUT("WSA_SPKR"), |
| }; |
| |
| static const struct snd_soc_dapm_route wsa881x_audio_map[] = { |
| {"WSA_RDAC", "Switch", "WSA_IN"}, |
| {"RDAC Analog", NULL, "WSA_RDAC"}, |
| {"WSA_SPKR PGA", NULL, "RDAC Analog"}, |
| {"WSA_SPKR", NULL, "WSA_SPKR PGA"}, |
| }; |
| |
| |
| static int wsa881x_startup(struct wsa881x_pdata *pdata) |
| { |
| int ret = 0; |
| struct snd_soc_codec *codec = pdata->codec; |
| struct snd_soc_card *card = codec->component.card; |
| |
| pr_debug("%s(): wsa startup, enable_cnt:%d\n", __func__, |
| pdata->enable_cnt); |
| |
| if (pdata->enable_cnt++ > 0) |
| return 0; |
| ret = msm_cdc_pinctrl_select_active_state(pdata->wsa_clk_gpio_p); |
| if (ret) { |
| pr_err("%s: gpio set cannot be activated %s\n", |
| __func__, "wsa_clk"); |
| return ret; |
| } |
| if (pdata->enable_mclk) { |
| ret = pdata->enable_mclk(card, true); |
| if (ret < 0) { |
| dev_err_ratelimited(codec->dev, |
| "%s: mclk enable failed %d\n", |
| __func__, ret); |
| return ret; |
| } |
| } |
| ret = wsa881x_reset(pdata, true); |
| return ret; |
| } |
| |
| static int wsa881x_shutdown(struct wsa881x_pdata *pdata) |
| { |
| int ret = 0; |
| struct snd_soc_codec *codec = pdata->codec; |
| struct snd_soc_card *card = codec->component.card; |
| |
| pr_debug("%s(): wsa shutdown, enable_cnt:%d\n", __func__, |
| pdata->enable_cnt); |
| if (--pdata->enable_cnt > 0) |
| return 0; |
| ret = wsa881x_reset(pdata, false); |
| if (ret) { |
| pr_err("%s: wsa reset failed suspend %d\n", |
| __func__, ret); |
| return ret; |
| } |
| |
| if (pdata->enable_mclk) { |
| ret = pdata->enable_mclk(card, false); |
| if (ret < 0) { |
| pr_err("%s: mclk disable failed %d\n", |
| __func__, ret); |
| return ret; |
| } |
| } |
| |
| ret = msm_cdc_pinctrl_select_sleep_state(pdata->wsa_clk_gpio_p); |
| if (ret) { |
| pr_err("%s: gpio set cannot be suspended %s\n", |
| __func__, "wsa_clk"); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static int32_t wsa881x_resource_acquire(struct snd_soc_codec *codec, |
| bool enable) |
| { |
| int ret = 0; |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| if (enable) { |
| ret = wsa881x_startup(wsa881x); |
| if (ret < 0) { |
| dev_err_ratelimited(codec->dev, |
| "%s: failed to startup\n", __func__); |
| return ret; |
| } |
| } |
| wsa881x_clk_ctrl(codec, enable); |
| wsa881x_bandgap_ctrl(codec, enable); |
| if (!enable) { |
| ret = wsa881x_shutdown(wsa881x); |
| if (ret < 0) |
| dev_err_ratelimited(codec->dev, |
| "%s: failed to shutdown\n", __func__); |
| } |
| return ret; |
| } |
| |
| static int32_t wsa881x_temp_reg_read(struct snd_soc_codec *codec, |
| struct wsa_temp_register *wsa_temp_reg) |
| { |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| int ret = 0; |
| |
| if (!wsa881x) { |
| dev_err(codec->dev, "%s: wsa881x is NULL\n", __func__); |
| return -EINVAL; |
| } |
| ret = wsa881x_resource_acquire(codec, true); |
| if (ret) { |
| dev_err_ratelimited(codec->dev, |
| "%s: resource acquire fail\n", __func__); |
| return ret; |
| } |
| |
| if (WSA881X_IS_2_0(wsa881x->version)) { |
| snd_soc_update_bits(codec, WSA881X_TADC_VALUE_CTL, 0x01, 0x00); |
| wsa_temp_reg->dmeas_msb = snd_soc_read(codec, WSA881X_TEMP_MSB); |
| wsa_temp_reg->dmeas_lsb = snd_soc_read(codec, WSA881X_TEMP_LSB); |
| snd_soc_update_bits(codec, WSA881X_TADC_VALUE_CTL, 0x01, 0x01); |
| } else { |
| wsa_temp_reg->dmeas_msb = snd_soc_read(codec, |
| WSA881X_TEMP_DOUT_MSB); |
| wsa_temp_reg->dmeas_lsb = snd_soc_read(codec, |
| WSA881X_TEMP_DOUT_LSB); |
| } |
| wsa_temp_reg->d1_msb = snd_soc_read(codec, WSA881X_OTP_REG_1); |
| wsa_temp_reg->d1_lsb = snd_soc_read(codec, WSA881X_OTP_REG_2); |
| wsa_temp_reg->d2_msb = snd_soc_read(codec, WSA881X_OTP_REG_3); |
| wsa_temp_reg->d2_lsb = snd_soc_read(codec, WSA881X_OTP_REG_4); |
| |
| ret = wsa881x_resource_acquire(codec, false); |
| if (ret) |
| dev_err_ratelimited(codec->dev, |
| "%s: resource release fail\n", __func__); |
| |
| return ret; |
| } |
| |
| static int wsa881x_probe(struct snd_soc_codec *codec) |
| { |
| struct i2c_client *client; |
| int ret = 0; |
| int wsa881x_index = 0; |
| struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); |
| char *widget_name = NULL; |
| struct snd_soc_card *card = codec->component.card; |
| struct snd_soc_codec_conf *codec_conf = card->codec_conf; |
| |
| client = dev_get_drvdata(codec->dev); |
| ret = wsa881x_i2c_get_client_index(client, &wsa881x_index); |
| if (ret != 0) { |
| dev_err(&client->dev, "%s: I2C get codec I2C\n" |
| "client failed\n", __func__); |
| return ret; |
| } |
| mutex_init(&wsa_pdata[wsa881x_index].bg_lock); |
| mutex_init(&wsa_pdata[wsa881x_index].res_lock); |
| snprintf(wsa_pdata[wsa881x_index].tz_pdata.name, 100, "%s", |
| wsa_tz_names[wsa881x_index]); |
| wsa_pdata[wsa881x_index].codec = codec; |
| wsa_pdata[wsa881x_index].spk_pa_gain = SPK_GAIN_12DB; |
| wsa_pdata[wsa881x_index].codec = codec; |
| wsa_pdata[wsa881x_index].tz_pdata.codec = codec; |
| wsa_pdata[wsa881x_index].tz_pdata.wsa_temp_reg_read = |
| wsa881x_temp_reg_read; |
| snd_soc_codec_set_drvdata(codec, &wsa_pdata[wsa881x_index]); |
| wsa881x_init_thermal(&wsa_pdata[wsa881x_index].tz_pdata); |
| INIT_DELAYED_WORK(&wsa_pdata[wsa881x_index].ocp_ctl_work, |
| wsa881x_ocp_ctl_work); |
| |
| if (codec_conf->name_prefix) { |
| widget_name = kcalloc(WIDGET_NAME_MAX_SIZE, sizeof(char), |
| GFP_KERNEL); |
| if (!widget_name) |
| return -ENOMEM; |
| |
| snprintf(widget_name, WIDGET_NAME_MAX_SIZE, |
| "%s WSA_SPKR", codec_conf->name_prefix); |
| snd_soc_dapm_ignore_suspend(dapm, widget_name); |
| snprintf(widget_name, WIDGET_NAME_MAX_SIZE, |
| "%s WSA_IN", codec_conf->name_prefix); |
| snd_soc_dapm_ignore_suspend(dapm, widget_name); |
| kfree(widget_name); |
| } else { |
| snd_soc_dapm_ignore_suspend(dapm, "WSA_SPKR"); |
| snd_soc_dapm_ignore_suspend(dapm, "WSA_IN"); |
| } |
| |
| snd_soc_dapm_sync(dapm); |
| return 0; |
| } |
| |
| static int wsa881x_remove(struct snd_soc_codec *codec) |
| { |
| struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); |
| |
| if (wsa881x->tz_pdata.tz_dev) |
| wsa881x_deinit_thermal(wsa881x->tz_pdata.tz_dev); |
| |
| mutex_destroy(&wsa881x->bg_lock); |
| mutex_destroy(&wsa881x->res_lock); |
| return 0; |
| } |
| |
| static struct snd_soc_codec_driver soc_codec_dev_wsa881x = { |
| .probe = wsa881x_probe, |
| .remove = wsa881x_remove, |
| |
| .read = wsa881x_i2c_read, |
| .write = wsa881x_i2c_write, |
| |
| .reg_cache_size = WSA881X_CACHE_SIZE, |
| .reg_cache_default = wsa881x_ana_reg_defaults, |
| .reg_word_size = 1, |
| |
| .component_driver = { |
| .controls = wsa881x_snd_controls, |
| .num_controls = ARRAY_SIZE(wsa881x_snd_controls), |
| .dapm_widgets = wsa881x_dapm_widgets, |
| .num_dapm_widgets = ARRAY_SIZE(wsa881x_dapm_widgets), |
| .dapm_routes = wsa881x_audio_map, |
| .num_dapm_routes = ARRAY_SIZE(wsa881x_audio_map), |
| }, |
| }; |
| |
| static int wsa881x_reset(struct wsa881x_pdata *pdata, bool enable) |
| { |
| int ret = 0; |
| |
| /* |
| * shutdown the GPIOs WSA_EN, WSA_MCLK, regulators |
| * and restore defaults in soc cache when shutdown. |
| * Enable regulators, GPIOs WSA_MCLK, WSA_EN when powerup. |
| */ |
| if (enable) { |
| if (pdata->wsa_active) |
| return 0; |
| ret = msm_cdc_pinctrl_select_active_state( |
| pdata->wsa_reset_gpio_p); |
| if (ret) { |
| pr_err("%s: gpio set cannot be activated %s\n", |
| __func__, "wsa_reset"); |
| return ret; |
| } |
| ret = msm_cdc_pinctrl_select_sleep_state( |
| pdata->wsa_reset_gpio_p); |
| if (ret) { |
| pr_err("%s: gpio set cannot be suspended(powerup) %s\n", |
| __func__, "wsa_reset"); |
| return ret; |
| } |
| ret = msm_cdc_pinctrl_select_active_state( |
| pdata->wsa_reset_gpio_p); |
| if (ret) { |
| pr_err("%s: gpio set cannot be activated %s\n", |
| __func__, "wsa_reset"); |
| return ret; |
| } |
| pdata->wsa_active = true; |
| } else { |
| if (!pdata->wsa_active) |
| return 0; |
| ret = msm_cdc_pinctrl_select_sleep_state( |
| pdata->wsa_reset_gpio_p); |
| if (ret) { |
| pr_err("%s: gpio set cannot be suspended %s\n", |
| __func__, "wsa_reset"); |
| return ret; |
| } |
| pdata->wsa_active = false; |
| } |
| return ret; |
| } |
| |
| int wsa881x_get_client_index(void) |
| { |
| return wsa881x_i2c_addr; |
| } |
| EXPORT_SYMBOL(wsa881x_get_client_index); |
| |
| int wsa881x_get_probing_count(void) |
| { |
| return wsa881x_probing_count; |
| } |
| EXPORT_SYMBOL(wsa881x_get_probing_count); |
| |
| int wsa881x_get_presence_count(void) |
| { |
| return wsa881x_presence_count; |
| } |
| EXPORT_SYMBOL(wsa881x_get_presence_count); |
| |
| int wsa881x_set_mclk_callback( |
| int (*enable_mclk_callback)(struct snd_soc_card *, bool)) |
| { |
| int i; |
| |
| for (i = 0; i < MAX_WSA881X_DEVICE; i++) { |
| if (wsa_pdata[i].status == WSA881X_STATUS_I2C) |
| wsa_pdata[i].enable_mclk = enable_mclk_callback; |
| } |
| return 0; |
| } |
| EXPORT_SYMBOL(wsa881x_set_mclk_callback); |
| |
| static int check_wsa881x_presence(struct i2c_client *client) |
| { |
| int ret = 0; |
| int wsa881x_index = 0; |
| |
| ret = wsa881x_i2c_get_client_index(client, &wsa881x_index); |
| if (ret != 0) { |
| dev_err(&client->dev, "%s: I2C get codec I2C\n" |
| "client failed\n", __func__); |
| return ret; |
| } |
| ret = wsa881x_i2c_read_device(&wsa_pdata[wsa881x_index], |
| WSA881X_CDC_RST_CTL); |
| if (ret < 0) { |
| dev_err(&client->dev, "failed to read wsa881x with addr %x\n", |
| client->addr); |
| return ret; |
| } |
| ret = wsa881x_i2c_write_device(&wsa_pdata[wsa881x_index], |
| WSA881X_CDC_RST_CTL, 0x01); |
| if (ret < 0) { |
| dev_err(&client->dev, "failed write addr %x reg:0x5 val:0x1\n", |
| client->addr); |
| return ret; |
| } |
| /* allow 20ms before trigger next write to verify wsa881x presence */ |
| msleep(20); |
| ret = wsa881x_i2c_write_device(&wsa_pdata[wsa881x_index], |
| WSA881X_CDC_RST_CTL, 0x00); |
| if (ret < 0) { |
| dev_err(&client->dev, "failed write addr %x reg:0x5 val:0x0\n", |
| client->addr); |
| return ret; |
| } |
| return ret; |
| } |
| |
| static int wsa881x_populate_dt_pdata(struct device *dev, int wsa881x_index) |
| { |
| int ret = 0; |
| struct wsa881x_pdata *pdata = &wsa_pdata[wsa881x_index]; |
| /* reading the gpio configurations from dtsi file */ |
| pdata->wsa_vi_gpio_p = of_parse_phandle(dev->of_node, |
| "qcom,wsa-analog-vi-gpio", 0); |
| pdata->wsa_clk_gpio_p = of_parse_phandle(dev->of_node, |
| "qcom,wsa-analog-clk-gpio", 0); |
| pdata->wsa_reset_gpio_p = of_parse_phandle(dev->of_node, |
| "qcom,wsa-analog-reset-gpio", 0); |
| pinctrl_init = true; |
| return ret; |
| } |
| |
| static int wsa881x_i2c_probe(struct i2c_client *client, |
| const struct i2c_device_id *id) |
| { |
| int ret = 0; |
| int wsa881x_index = 0; |
| struct wsa881x_pdata *pdata = NULL; |
| |
| ret = wsa881x_i2c_get_client_index(client, &wsa881x_index); |
| if (ret != 0) { |
| dev_err(&client->dev, "%s: I2C get codec I2C\n" |
| "client failed\n", __func__); |
| return ret; |
| } |
| |
| pdata = &wsa_pdata[wsa881x_index]; |
| if ((client->addr == WSA881X_I2C_SPK0_SLAVE1_ADDR || |
| client->addr == WSA881X_I2C_SPK1_SLAVE1_ADDR) && |
| (pdata->status == WSA881X_STATUS_PROBING)) { |
| wsa881x_probing_count++; |
| return ret; |
| } |
| |
| if (pdata->status == WSA881X_STATUS_I2C) { |
| dev_dbg(&client->dev, "%s:probe for other slaves\n" |
| "devices of codec I2C slave Addr = %x\n", |
| __func__, client->addr); |
| dev_dbg(&client->dev, "%s:wsa_idx = %d SLAVE = %d\n", |
| __func__, wsa881x_index, WSA881X_ANALOG_SLAVE); |
| pdata->regmap[WSA881X_ANALOG_SLAVE] = |
| devm_regmap_init_i2c( |
| client, |
| &wsa881x_ana_regmap_config[WSA881X_ANALOG_SLAVE]); |
| regcache_cache_bypass(pdata->regmap[WSA881X_ANALOG_SLAVE], |
| true); |
| if (IS_ERR(pdata->regmap[WSA881X_ANALOG_SLAVE])) { |
| ret = PTR_ERR(pdata->regmap[WSA881X_ANALOG_SLAVE]); |
| dev_err(&client->dev, |
| "%s: regmap_init failed %d\n", |
| __func__, ret); |
| } |
| client->dev.platform_data = pdata; |
| i2c_set_clientdata(client, pdata); |
| pdata->client[WSA881X_ANALOG_SLAVE] = client; |
| if (pdata->version == WSA881X_2_0) |
| wsa881x_update_regmap_2_0( |
| pdata->regmap[WSA881X_ANALOG_SLAVE], |
| WSA881X_ANALOG_SLAVE); |
| |
| wsa881x_probing_count++; |
| return ret; |
| } else if (pdata->status == WSA881X_STATUS_PROBING) { |
| pdata->index = wsa881x_index; |
| if (client->dev.of_node) { |
| dev_dbg(&client->dev, "%s:Platform data\n" |
| "from device tree\n", __func__); |
| ret = wsa881x_populate_dt_pdata( |
| &client->dev, wsa881x_index); |
| if (ret < 0) { |
| dev_err(&client->dev, |
| "%s: Fail to obtain pdata from device tree\n", |
| __func__); |
| ret = -EINVAL; |
| goto err; |
| } |
| client->dev.platform_data = pdata; |
| } else { |
| dev_dbg(&client->dev, "%s:Platform data from\n" |
| "board file\n", __func__); |
| pdata = client->dev.platform_data; |
| } |
| if (!pdata) { |
| dev_dbg(&client->dev, "no platform data?\n"); |
| ret = -EINVAL; |
| goto err; |
| } |
| dev_set_drvdata(&client->dev, client); |
| |
| pdata->regmap[WSA881X_DIGITAL_SLAVE] = |
| devm_regmap_init_i2c( |
| client, |
| &wsa881x_ana_regmap_config[WSA881X_DIGITAL_SLAVE]); |
| regcache_cache_bypass(pdata->regmap[WSA881X_DIGITAL_SLAVE], |
| true); |
| if (IS_ERR(pdata->regmap[WSA881X_DIGITAL_SLAVE])) { |
| ret = PTR_ERR(pdata->regmap[WSA881X_DIGITAL_SLAVE]); |
| dev_err(&client->dev, "%s: regmap_init failed %d\n", |
| __func__, ret); |
| goto err; |
| } |
| /* bus reset sequence */ |
| ret = wsa881x_reset(pdata, true); |
| if (ret < 0) { |
| wsa881x_probing_count++; |
| dev_err(&client->dev, "%s: WSA enable Failed %d\n", |
| __func__, ret); |
| goto err; |
| } |
| pdata->client[WSA881X_DIGITAL_SLAVE] = client; |
| pdata->regmap_flag = true; |
| ret = check_wsa881x_presence(client); |
| if (ret < 0) { |
| dev_err(&client->dev, |
| "failed to ping wsa with addr:%x, ret = %d\n", |
| client->addr, ret); |
| wsa881x_probing_count++; |
| goto err1; |
| } |
| pdata->version = wsa881x_i2c_read_device(pdata, |
| WSA881X_CHIP_ID1); |
| pr_debug("%s: wsa881x version: %d\n", __func__, pdata->version); |
| if (pdata->version == WSA881X_2_0) { |
| wsa881x_update_reg_defaults_2_0(); |
| wsa881x_update_regmap_2_0( |
| pdata->regmap[WSA881X_DIGITAL_SLAVE], |
| WSA881X_DIGITAL_SLAVE); |
| } |
| wsa881x_presence_count++; |
| wsa881x_probing_count++; |
| ret = snd_soc_register_codec(&client->dev, |
| &soc_codec_dev_wsa881x, |
| NULL, 0); |
| if (ret < 0) |
| goto err1; |
| pdata->status = WSA881X_STATUS_I2C; |
| } |
| err1: |
| wsa881x_reset(pdata, false); |
| err: |
| return 0; |
| } |
| |
| static int wsa881x_i2c_remove(struct i2c_client *client) |
| { |
| struct wsa881x_pdata *wsa881x = client->dev.platform_data; |
| |
| snd_soc_unregister_codec(&client->dev); |
| i2c_set_clientdata(client, NULL); |
| kfree(wsa881x); |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM_SLEEP |
| static int wsa881x_i2c_suspend(struct device *dev) |
| { |
| pr_debug("%s: system suspend\n", __func__); |
| return 0; |
| } |
| |
| static int wsa881x_i2c_resume(struct device *dev) |
| { |
| pr_debug("%s: system resume\n", __func__); |
| return 0; |
| } |
| |
| static const struct dev_pm_ops wsa881x_i2c_pm_ops = { |
| SET_SYSTEM_SLEEP_PM_OPS(wsa881x_i2c_suspend, wsa881x_i2c_resume) |
| }; |
| #endif /* CONFIG_PM_SLEEP */ |
| |
| static const struct i2c_device_id wsa881x_i2c_id[] = { |
| {"wsa881x-i2c-dev", WSA881X_I2C_SPK0_SLAVE0_ADDR}, |
| {"wsa881x-i2c-dev", WSA881X_I2C_SPK0_SLAVE1_ADDR}, |
| {"wsa881x-i2c-dev", WSA881X_I2C_SPK1_SLAVE0_ADDR}, |
| {"wsa881x-i2c-dev", WSA881X_I2C_SPK1_SLAVE1_ADDR}, |
| {} |
| }; |
| |
| MODULE_DEVICE_TABLE(i2c, wsa881x_i2c_id); |
| |
| |
| static const struct of_device_id msm_match_table[] = { |
| {.compatible = "qcom,wsa881x-i2c-codec"}, |
| {} |
| }; |
| MODULE_DEVICE_TABLE(of, msm_match_table); |
| |
| static struct i2c_driver wsa881x_codec_driver = { |
| .driver = { |
| .name = "wsa881x-i2c-codec", |
| .owner = THIS_MODULE, |
| .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
| #ifdef CONFIG_PM_SLEEP |
| .pm = &wsa881x_i2c_pm_ops, |
| #endif |
| .of_match_table = msm_match_table, |
| }, |
| .id_table = wsa881x_i2c_id, |
| .probe = wsa881x_i2c_probe, |
| .remove = wsa881x_i2c_remove, |
| }; |
| |
| static int __init wsa881x_codec_init(void) |
| { |
| int i = 0; |
| |
| for (i = 0; i < MAX_WSA881X_DEVICE; i++) |
| wsa_pdata[i].status = WSA881X_STATUS_PROBING; |
| return i2c_add_driver(&wsa881x_codec_driver); |
| } |
| module_init(wsa881x_codec_init); |
| |
| static void __exit wsa881x_codec_exit(void) |
| { |
| i2c_del_driver(&wsa881x_codec_driver); |
| } |
| |
| module_exit(wsa881x_codec_exit); |
| |
| MODULE_DESCRIPTION("WSA881x Codec driver"); |
| MODULE_LICENSE("GPL v2"); |