| /* |
| * rt286.c -- RT286 ALSA SoC audio codec driver |
| * |
| * Copyright 2013 Realtek Semiconductor Corp. |
| * Author: Bard Liao <bardliao@realtek.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/init.h> |
| #include <linux/delay.h> |
| #include <linux/pm.h> |
| #include <linux/i2c.h> |
| #include <linux/platform_device.h> |
| #include <linux/spi/spi.h> |
| #include <linux/acpi.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/soc.h> |
| #include <sound/soc-dapm.h> |
| #include <sound/initval.h> |
| #include <sound/tlv.h> |
| #include <sound/jack.h> |
| #include <linux/workqueue.h> |
| #include <sound/rt286.h> |
| #include <sound/hda_verbs.h> |
| |
| #include "rt286.h" |
| |
| #define RT286_VENDOR_ID 0x10ec0286 |
| |
| struct rt286_priv { |
| struct regmap *regmap; |
| struct rt286_platform_data pdata; |
| struct i2c_client *i2c; |
| struct snd_soc_jack *jack; |
| struct delayed_work jack_detect_work; |
| int sys_clk; |
| struct reg_default *index_cache; |
| }; |
| |
| static struct reg_default rt286_index_def[] = { |
| { 0x01, 0xaaaa }, |
| { 0x02, 0x8aaa }, |
| { 0x03, 0x0002 }, |
| { 0x04, 0xaf01 }, |
| { 0x08, 0x000d }, |
| { 0x09, 0xd810 }, |
| { 0x0a, 0x0060 }, |
| { 0x0b, 0x0000 }, |
| { 0x0d, 0x2800 }, |
| { 0x0f, 0x0000 }, |
| { 0x19, 0x0a17 }, |
| { 0x20, 0x0020 }, |
| { 0x33, 0x0208 }, |
| { 0x49, 0x0004 }, |
| { 0x4f, 0x50e9 }, |
| { 0x50, 0x2c00 }, |
| { 0x63, 0x2902 }, |
| { 0x67, 0x1111 }, |
| { 0x68, 0x1016 }, |
| { 0x69, 0x273f }, |
| }; |
| #define INDEX_CACHE_SIZE ARRAY_SIZE(rt286_index_def) |
| |
| static const struct reg_default rt286_reg[] = { |
| { 0x00170500, 0x00000400 }, |
| { 0x00220000, 0x00000031 }, |
| { 0x00239000, 0x0000007f }, |
| { 0x0023a000, 0x0000007f }, |
| { 0x00270500, 0x00000400 }, |
| { 0x00370500, 0x00000400 }, |
| { 0x00870500, 0x00000400 }, |
| { 0x00920000, 0x00000031 }, |
| { 0x00935000, 0x000000c3 }, |
| { 0x00936000, 0x000000c3 }, |
| { 0x00970500, 0x00000400 }, |
| { 0x00b37000, 0x00000097 }, |
| { 0x00b37200, 0x00000097 }, |
| { 0x00b37300, 0x00000097 }, |
| { 0x00c37000, 0x00000000 }, |
| { 0x00c37100, 0x00000080 }, |
| { 0x01270500, 0x00000400 }, |
| { 0x01370500, 0x00000400 }, |
| { 0x01371f00, 0x411111f0 }, |
| { 0x01439000, 0x00000080 }, |
| { 0x0143a000, 0x00000080 }, |
| { 0x01470700, 0x00000000 }, |
| { 0x01470500, 0x00000400 }, |
| { 0x01470c00, 0x00000000 }, |
| { 0x01470100, 0x00000000 }, |
| { 0x01837000, 0x00000000 }, |
| { 0x01870500, 0x00000400 }, |
| { 0x02050000, 0x00000000 }, |
| { 0x02139000, 0x00000080 }, |
| { 0x0213a000, 0x00000080 }, |
| { 0x02170100, 0x00000000 }, |
| { 0x02170500, 0x00000400 }, |
| { 0x02170700, 0x00000000 }, |
| { 0x02270100, 0x00000000 }, |
| { 0x02370100, 0x00000000 }, |
| { 0x02040000, 0x00004002 }, |
| { 0x01870700, 0x00000020 }, |
| { 0x00830000, 0x000000c3 }, |
| { 0x00930000, 0x000000c3 }, |
| { 0x01270700, 0x00000000 }, |
| }; |
| |
| static bool rt286_volatile_register(struct device *dev, unsigned int reg) |
| { |
| switch (reg) { |
| case 0 ... 0xff: |
| case RT286_GET_PARAM(AC_NODE_ROOT, AC_PAR_VENDOR_ID): |
| case RT286_GET_HP_SENSE: |
| case RT286_GET_MIC1_SENSE: |
| case RT286_PROC_COEF: |
| return true; |
| default: |
| return false; |
| } |
| |
| |
| } |
| |
| static bool rt286_readable_register(struct device *dev, unsigned int reg) |
| { |
| switch (reg) { |
| case 0 ... 0xff: |
| case RT286_GET_PARAM(AC_NODE_ROOT, AC_PAR_VENDOR_ID): |
| case RT286_GET_HP_SENSE: |
| case RT286_GET_MIC1_SENSE: |
| case RT286_SET_AUDIO_POWER: |
| case RT286_SET_HPO_POWER: |
| case RT286_SET_SPK_POWER: |
| case RT286_SET_DMIC1_POWER: |
| case RT286_SPK_MUX: |
| case RT286_HPO_MUX: |
| case RT286_ADC0_MUX: |
| case RT286_ADC1_MUX: |
| case RT286_SET_MIC1: |
| case RT286_SET_PIN_HPO: |
| case RT286_SET_PIN_SPK: |
| case RT286_SET_PIN_DMIC1: |
| case RT286_SPK_EAPD: |
| case RT286_SET_AMP_GAIN_HPO: |
| case RT286_SET_DMIC2_DEFAULT: |
| case RT286_DACL_GAIN: |
| case RT286_DACR_GAIN: |
| case RT286_ADCL_GAIN: |
| case RT286_ADCR_GAIN: |
| case RT286_MIC_GAIN: |
| case RT286_SPOL_GAIN: |
| case RT286_SPOR_GAIN: |
| case RT286_HPOL_GAIN: |
| case RT286_HPOR_GAIN: |
| case RT286_F_DAC_SWITCH: |
| case RT286_F_RECMIX_SWITCH: |
| case RT286_REC_MIC_SWITCH: |
| case RT286_REC_I2S_SWITCH: |
| case RT286_REC_LINE_SWITCH: |
| case RT286_REC_BEEP_SWITCH: |
| case RT286_DAC_FORMAT: |
| case RT286_ADC_FORMAT: |
| case RT286_COEF_INDEX: |
| case RT286_PROC_COEF: |
| case RT286_SET_AMP_GAIN_ADC_IN1: |
| case RT286_SET_AMP_GAIN_ADC_IN2: |
| case RT286_SET_POWER(RT286_DAC_OUT1): |
| case RT286_SET_POWER(RT286_DAC_OUT2): |
| case RT286_SET_POWER(RT286_ADC_IN1): |
| case RT286_SET_POWER(RT286_ADC_IN2): |
| case RT286_SET_POWER(RT286_DMIC2): |
| case RT286_SET_POWER(RT286_MIC1): |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| static int rt286_hw_write(void *context, unsigned int reg, unsigned int value) |
| { |
| struct i2c_client *client = context; |
| struct rt286_priv *rt286 = i2c_get_clientdata(client); |
| u8 data[4]; |
| int ret, i; |
| |
| /*handle index registers*/ |
| if (reg <= 0xff) { |
| rt286_hw_write(client, RT286_COEF_INDEX, reg); |
| reg = RT286_PROC_COEF; |
| for (i = 0; i < INDEX_CACHE_SIZE; i++) { |
| if (reg == rt286->index_cache[i].reg) { |
| rt286->index_cache[i].def = value; |
| break; |
| } |
| |
| } |
| } |
| |
| data[0] = (reg >> 24) & 0xff; |
| data[1] = (reg >> 16) & 0xff; |
| /* |
| * 4 bit VID: reg should be 0 |
| * 12 bit VID: value should be 0 |
| * So we use an OR operator to handle it rather than use if condition. |
| */ |
| data[2] = ((reg >> 8) & 0xff) | ((value >> 8) & 0xff); |
| data[3] = value & 0xff; |
| |
| ret = i2c_master_send(client, data, 4); |
| |
| if (ret == 4) |
| return 0; |
| else |
| pr_err("ret=%d\n", ret); |
| if (ret < 0) |
| return ret; |
| else |
| return -EIO; |
| } |
| |
| static int rt286_hw_read(void *context, unsigned int reg, unsigned int *value) |
| { |
| struct i2c_client *client = context; |
| struct i2c_msg xfer[2]; |
| int ret; |
| __be32 be_reg; |
| unsigned int index, vid, buf = 0x0; |
| |
| /*handle index registers*/ |
| if (reg <= 0xff) { |
| rt286_hw_write(client, RT286_COEF_INDEX, reg); |
| reg = RT286_PROC_COEF; |
| } |
| |
| reg = reg | 0x80000; |
| vid = (reg >> 8) & 0xfff; |
| |
| if (AC_VERB_GET_AMP_GAIN_MUTE == (vid & 0xf00)) { |
| index = (reg >> 8) & 0xf; |
| reg = (reg & ~0xf0f) | index; |
| } |
| be_reg = cpu_to_be32(reg); |
| |
| /* Write register */ |
| xfer[0].addr = client->addr; |
| xfer[0].flags = 0; |
| xfer[0].len = 4; |
| xfer[0].buf = (u8 *)&be_reg; |
| |
| /* Read data */ |
| xfer[1].addr = client->addr; |
| xfer[1].flags = I2C_M_RD; |
| xfer[1].len = 4; |
| xfer[1].buf = (u8 *)&buf; |
| |
| ret = i2c_transfer(client->adapter, xfer, 2); |
| if (ret < 0) |
| return ret; |
| else if (ret != 2) |
| return -EIO; |
| |
| *value = be32_to_cpu(buf); |
| |
| return 0; |
| } |
| |
| static void rt286_index_sync(struct snd_soc_codec *codec) |
| { |
| struct rt286_priv *rt286 = snd_soc_codec_get_drvdata(codec); |
| int i; |
| |
| for (i = 0; i < INDEX_CACHE_SIZE; i++) { |
| snd_soc_write(codec, rt286->index_cache[i].reg, |
| rt286->index_cache[i].def); |
| } |
| } |
| |
| static int rt286_support_power_controls[] = { |
| RT286_DAC_OUT1, |
| RT286_DAC_OUT2, |
| RT286_ADC_IN1, |
| RT286_ADC_IN2, |
| RT286_MIC1, |
| RT286_DMIC1, |
| RT286_DMIC2, |
| RT286_SPK_OUT, |
| RT286_HP_OUT, |
| }; |
| #define RT286_POWER_REG_LEN ARRAY_SIZE(rt286_support_power_controls) |
| |
| static int rt286_jack_detect(struct rt286_priv *rt286, bool *hp, bool *mic) |
| { |
| unsigned int val, buf; |
| int i; |
| |
| *hp = false; |
| *mic = false; |
| |
| if (rt286->pdata.cbj_en) { |
| regmap_read(rt286->regmap, RT286_GET_HP_SENSE, &buf); |
| *hp = buf & 0x80000000; |
| if (*hp) { |
| /* power on HV,VERF */ |
| regmap_update_bits(rt286->regmap, |
| RT286_POWER_CTRL1, 0x1001, 0x0); |
| /* power LDO1 */ |
| regmap_update_bits(rt286->regmap, |
| RT286_POWER_CTRL2, 0x4, 0x4); |
| regmap_write(rt286->regmap, RT286_SET_MIC1, 0x24); |
| regmap_read(rt286->regmap, RT286_CBJ_CTRL2, &val); |
| |
| msleep(200); |
| i = 40; |
| while (((val & 0x0800) == 0) && (i > 0)) { |
| regmap_read(rt286->regmap, |
| RT286_CBJ_CTRL2, &val); |
| i--; |
| msleep(20); |
| } |
| |
| if (0x0400 == (val & 0x0700)) { |
| *mic = false; |
| |
| regmap_write(rt286->regmap, |
| RT286_SET_MIC1, 0x20); |
| /* power off HV,VERF */ |
| regmap_update_bits(rt286->regmap, |
| RT286_POWER_CTRL1, 0x1001, 0x1001); |
| regmap_update_bits(rt286->regmap, |
| RT286_A_BIAS_CTRL3, 0xc000, 0x0000); |
| regmap_update_bits(rt286->regmap, |
| RT286_CBJ_CTRL1, 0x0030, 0x0000); |
| regmap_update_bits(rt286->regmap, |
| RT286_A_BIAS_CTRL2, 0xc000, 0x0000); |
| } else if ((0x0200 == (val & 0x0700)) || |
| (0x0100 == (val & 0x0700))) { |
| *mic = true; |
| regmap_update_bits(rt286->regmap, |
| RT286_A_BIAS_CTRL3, 0xc000, 0x8000); |
| regmap_update_bits(rt286->regmap, |
| RT286_CBJ_CTRL1, 0x0030, 0x0020); |
| regmap_update_bits(rt286->regmap, |
| RT286_A_BIAS_CTRL2, 0xc000, 0x8000); |
| } else { |
| *mic = false; |
| } |
| |
| regmap_update_bits(rt286->regmap, |
| RT286_MISC_CTRL1, |
| 0x0060, 0x0000); |
| } else { |
| regmap_update_bits(rt286->regmap, |
| RT286_MISC_CTRL1, |
| 0x0060, 0x0020); |
| regmap_update_bits(rt286->regmap, |
| RT286_A_BIAS_CTRL3, |
| 0xc000, 0x8000); |
| regmap_update_bits(rt286->regmap, |
| RT286_CBJ_CTRL1, |
| 0x0030, 0x0020); |
| regmap_update_bits(rt286->regmap, |
| RT286_A_BIAS_CTRL2, |
| 0xc000, 0x8000); |
| |
| *mic = false; |
| } |
| } else { |
| regmap_read(rt286->regmap, RT286_GET_HP_SENSE, &buf); |
| *hp = buf & 0x80000000; |
| regmap_read(rt286->regmap, RT286_GET_MIC1_SENSE, &buf); |
| *mic = buf & 0x80000000; |
| } |
| |
| return 0; |
| } |
| |
| static void rt286_jack_detect_work(struct work_struct *work) |
| { |
| struct rt286_priv *rt286 = |
| container_of(work, struct rt286_priv, jack_detect_work.work); |
| int status = 0; |
| bool hp = false; |
| bool mic = false; |
| |
| rt286_jack_detect(rt286, &hp, &mic); |
| |
| if (hp == true) |
| status |= SND_JACK_HEADPHONE; |
| |
| if (mic == true) |
| status |= SND_JACK_MICROPHONE; |
| |
| snd_soc_jack_report(rt286->jack, status, |
| SND_JACK_MICROPHONE | SND_JACK_HEADPHONE); |
| } |
| |
| int rt286_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack) |
| { |
| struct rt286_priv *rt286 = snd_soc_codec_get_drvdata(codec); |
| |
| rt286->jack = jack; |
| |
| /* Send an initial empty report */ |
| snd_soc_jack_report(rt286->jack, 0, |
| SND_JACK_MICROPHONE | SND_JACK_HEADPHONE); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL_GPL(rt286_mic_detect); |
| |
| static const DECLARE_TLV_DB_SCALE(out_vol_tlv, -6350, 50, 0); |
| static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, 0, 1000, 0); |
| |
| static const struct snd_kcontrol_new rt286_snd_controls[] = { |
| SOC_DOUBLE_R_TLV("DAC0 Playback Volume", RT286_DACL_GAIN, |
| RT286_DACR_GAIN, 0, 0x7f, 0, out_vol_tlv), |
| SOC_DOUBLE_R_TLV("ADC0 Capture Volume", RT286_ADCL_GAIN, |
| RT286_ADCR_GAIN, 0, 0x7f, 0, out_vol_tlv), |
| SOC_SINGLE_TLV("AMIC Volume", RT286_MIC_GAIN, |
| 0, 0x3, 0, mic_vol_tlv), |
| SOC_DOUBLE_R("Speaker Playback Switch", RT286_SPOL_GAIN, |
| RT286_SPOR_GAIN, RT286_MUTE_SFT, 1, 1), |
| }; |
| |
| /* Digital Mixer */ |
| static const struct snd_kcontrol_new rt286_front_mix[] = { |
| SOC_DAPM_SINGLE("DAC Switch", RT286_F_DAC_SWITCH, |
| RT286_MUTE_SFT, 1, 1), |
| SOC_DAPM_SINGLE("RECMIX Switch", RT286_F_RECMIX_SWITCH, |
| RT286_MUTE_SFT, 1, 1), |
| }; |
| |
| /* Analog Input Mixer */ |
| static const struct snd_kcontrol_new rt286_rec_mix[] = { |
| SOC_DAPM_SINGLE("Mic1 Switch", RT286_REC_MIC_SWITCH, |
| RT286_MUTE_SFT, 1, 1), |
| SOC_DAPM_SINGLE("I2S Switch", RT286_REC_I2S_SWITCH, |
| RT286_MUTE_SFT, 1, 1), |
| SOC_DAPM_SINGLE("Line1 Switch", RT286_REC_LINE_SWITCH, |
| RT286_MUTE_SFT, 1, 1), |
| SOC_DAPM_SINGLE("Beep Switch", RT286_REC_BEEP_SWITCH, |
| RT286_MUTE_SFT, 1, 1), |
| }; |
| |
| static const struct snd_kcontrol_new spo_enable_control = |
| SOC_DAPM_SINGLE("Switch", RT286_SET_PIN_SPK, |
| RT286_SET_PIN_SFT, 1, 0); |
| |
| static const struct snd_kcontrol_new hpol_enable_control = |
| SOC_DAPM_SINGLE_AUTODISABLE("Switch", RT286_HPOL_GAIN, |
| RT286_MUTE_SFT, 1, 1); |
| |
| static const struct snd_kcontrol_new hpor_enable_control = |
| SOC_DAPM_SINGLE_AUTODISABLE("Switch", RT286_HPOR_GAIN, |
| RT286_MUTE_SFT, 1, 1); |
| |
| /* ADC0 source */ |
| static const char * const rt286_adc_src[] = { |
| "Mic", "RECMIX", "Dmic" |
| }; |
| |
| static const int rt286_adc_values[] = { |
| 0, 4, 5, |
| }; |
| |
| static SOC_VALUE_ENUM_SINGLE_DECL( |
| rt286_adc0_enum, RT286_ADC0_MUX, RT286_ADC_SEL_SFT, |
| RT286_ADC_SEL_MASK, rt286_adc_src, rt286_adc_values); |
| |
| static const struct snd_kcontrol_new rt286_adc0_mux = |
| SOC_DAPM_ENUM("ADC 0 source", rt286_adc0_enum); |
| |
| static SOC_VALUE_ENUM_SINGLE_DECL( |
| rt286_adc1_enum, RT286_ADC1_MUX, RT286_ADC_SEL_SFT, |
| RT286_ADC_SEL_MASK, rt286_adc_src, rt286_adc_values); |
| |
| static const struct snd_kcontrol_new rt286_adc1_mux = |
| SOC_DAPM_ENUM("ADC 1 source", rt286_adc1_enum); |
| |
| static const char * const rt286_dac_src[] = { |
| "Front", "Surround" |
| }; |
| /* HP-OUT source */ |
| static SOC_ENUM_SINGLE_DECL(rt286_hpo_enum, RT286_HPO_MUX, |
| 0, rt286_dac_src); |
| |
| static const struct snd_kcontrol_new rt286_hpo_mux = |
| SOC_DAPM_ENUM("HPO source", rt286_hpo_enum); |
| |
| /* SPK-OUT source */ |
| static SOC_ENUM_SINGLE_DECL(rt286_spo_enum, RT286_SPK_MUX, |
| 0, rt286_dac_src); |
| |
| static const struct snd_kcontrol_new rt286_spo_mux = |
| SOC_DAPM_ENUM("SPO source", rt286_spo_enum); |
| |
| static int rt286_spk_event(struct snd_soc_dapm_widget *w, |
| struct snd_kcontrol *kcontrol, int event) |
| { |
| struct snd_soc_codec *codec = w->codec; |
| |
| switch (event) { |
| case SND_SOC_DAPM_POST_PMU: |
| snd_soc_write(codec, |
| RT286_SPK_EAPD, RT286_SET_EAPD_HIGH); |
| break; |
| case SND_SOC_DAPM_PRE_PMD: |
| snd_soc_write(codec, |
| RT286_SPK_EAPD, RT286_SET_EAPD_LOW); |
| break; |
| |
| default: |
| return 0; |
| } |
| |
| return 0; |
| } |
| |
| static int rt286_set_dmic1_event(struct snd_soc_dapm_widget *w, |
| struct snd_kcontrol *kcontrol, int event) |
| { |
| struct snd_soc_codec *codec = w->codec; |
| |
| switch (event) { |
| case SND_SOC_DAPM_POST_PMU: |
| snd_soc_write(codec, RT286_SET_PIN_DMIC1, 0x20); |
| break; |
| case SND_SOC_DAPM_PRE_PMD: |
| snd_soc_write(codec, RT286_SET_PIN_DMIC1, 0); |
| break; |
| default: |
| return 0; |
| } |
| |
| return 0; |
| } |
| |
| static int rt286_adc_event(struct snd_soc_dapm_widget *w, |
| struct snd_kcontrol *kcontrol, int event) |
| { |
| struct snd_soc_codec *codec = w->codec; |
| unsigned int nid; |
| |
| nid = (w->reg >> 20) & 0xff; |
| |
| switch (event) { |
| case SND_SOC_DAPM_POST_PMU: |
| snd_soc_update_bits(codec, |
| VERB_CMD(AC_VERB_SET_AMP_GAIN_MUTE, nid, 0), |
| 0x7080, 0x7000); |
| break; |
| case SND_SOC_DAPM_PRE_PMD: |
| snd_soc_update_bits(codec, |
| VERB_CMD(AC_VERB_SET_AMP_GAIN_MUTE, nid, 0), |
| 0x7080, 0x7080); |
| break; |
| default: |
| return 0; |
| } |
| |
| return 0; |
| } |
| |
| static const struct snd_soc_dapm_widget rt286_dapm_widgets[] = { |
| /* Input Lines */ |
| SND_SOC_DAPM_INPUT("DMIC1 Pin"), |
| SND_SOC_DAPM_INPUT("DMIC2 Pin"), |
| SND_SOC_DAPM_INPUT("MIC1"), |
| SND_SOC_DAPM_INPUT("LINE1"), |
| SND_SOC_DAPM_INPUT("Beep"), |
| |
| /* DMIC */ |
| SND_SOC_DAPM_PGA_E("DMIC1", RT286_SET_POWER(RT286_DMIC1), 0, 1, |
| NULL, 0, rt286_set_dmic1_event, |
| SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), |
| SND_SOC_DAPM_PGA("DMIC2", RT286_SET_POWER(RT286_DMIC2), 0, 1, |
| NULL, 0), |
| SND_SOC_DAPM_SUPPLY("DMIC Receiver", SND_SOC_NOPM, |
| 0, 0, NULL, 0), |
| |
| /* REC Mixer */ |
| SND_SOC_DAPM_MIXER("RECMIX", SND_SOC_NOPM, 0, 0, |
| rt286_rec_mix, ARRAY_SIZE(rt286_rec_mix)), |
| |
| /* ADCs */ |
| SND_SOC_DAPM_ADC("ADC 0", NULL, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_ADC("ADC 1", NULL, SND_SOC_NOPM, 0, 0), |
| |
| /* ADC Mux */ |
| SND_SOC_DAPM_MUX_E("ADC 0 Mux", RT286_SET_POWER(RT286_ADC_IN1), 0, 1, |
| &rt286_adc0_mux, rt286_adc_event, SND_SOC_DAPM_PRE_PMD | |
| SND_SOC_DAPM_POST_PMU), |
| SND_SOC_DAPM_MUX_E("ADC 1 Mux", RT286_SET_POWER(RT286_ADC_IN2), 0, 1, |
| &rt286_adc1_mux, rt286_adc_event, SND_SOC_DAPM_PRE_PMD | |
| SND_SOC_DAPM_POST_PMU), |
| |
| /* Audio Interface */ |
| SND_SOC_DAPM_AIF_IN("AIF1RX", "AIF1 Playback", 0, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_AIF_OUT("AIF1TX", "AIF1 Capture", 0, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_AIF_IN("AIF2RX", "AIF2 Playback", 0, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_AIF_OUT("AIF2TX", "AIF2 Capture", 0, SND_SOC_NOPM, 0, 0), |
| |
| /* Output Side */ |
| /* DACs */ |
| SND_SOC_DAPM_DAC("DAC 0", NULL, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_DAC("DAC 1", NULL, SND_SOC_NOPM, 0, 0), |
| |
| /* Output Mux */ |
| SND_SOC_DAPM_MUX("SPK Mux", SND_SOC_NOPM, 0, 0, &rt286_spo_mux), |
| SND_SOC_DAPM_MUX("HPO Mux", SND_SOC_NOPM, 0, 0, &rt286_hpo_mux), |
| |
| SND_SOC_DAPM_SUPPLY("HP Power", RT286_SET_PIN_HPO, |
| RT286_SET_PIN_SFT, 0, NULL, 0), |
| |
| /* Output Mixer */ |
| SND_SOC_DAPM_MIXER("Front", RT286_SET_POWER(RT286_DAC_OUT1), 0, 1, |
| rt286_front_mix, ARRAY_SIZE(rt286_front_mix)), |
| SND_SOC_DAPM_PGA("Surround", RT286_SET_POWER(RT286_DAC_OUT2), 0, 1, |
| NULL, 0), |
| |
| /* Output Pga */ |
| SND_SOC_DAPM_SWITCH_E("SPO", SND_SOC_NOPM, 0, 0, |
| &spo_enable_control, rt286_spk_event, |
| SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), |
| SND_SOC_DAPM_SWITCH("HPO L", SND_SOC_NOPM, 0, 0, |
| &hpol_enable_control), |
| SND_SOC_DAPM_SWITCH("HPO R", SND_SOC_NOPM, 0, 0, |
| &hpor_enable_control), |
| |
| /* Output Lines */ |
| SND_SOC_DAPM_OUTPUT("SPOL"), |
| SND_SOC_DAPM_OUTPUT("SPOR"), |
| SND_SOC_DAPM_OUTPUT("HPO Pin"), |
| SND_SOC_DAPM_OUTPUT("SPDIF"), |
| }; |
| |
| static const struct snd_soc_dapm_route rt286_dapm_routes[] = { |
| {"DMIC1", NULL, "DMIC1 Pin"}, |
| {"DMIC2", NULL, "DMIC2 Pin"}, |
| {"DMIC1", NULL, "DMIC Receiver"}, |
| {"DMIC2", NULL, "DMIC Receiver"}, |
| |
| {"RECMIX", "Beep Switch", "Beep"}, |
| {"RECMIX", "Line1 Switch", "LINE1"}, |
| {"RECMIX", "Mic1 Switch", "MIC1"}, |
| |
| {"ADC 0 Mux", "Dmic", "DMIC1"}, |
| {"ADC 0 Mux", "RECMIX", "RECMIX"}, |
| {"ADC 0 Mux", "Mic", "MIC1"}, |
| {"ADC 1 Mux", "Dmic", "DMIC2"}, |
| {"ADC 1 Mux", "RECMIX", "RECMIX"}, |
| {"ADC 1 Mux", "Mic", "MIC1"}, |
| |
| {"ADC 0", NULL, "ADC 0 Mux"}, |
| {"ADC 1", NULL, "ADC 1 Mux"}, |
| |
| {"AIF1TX", NULL, "ADC 0"}, |
| {"AIF2TX", NULL, "ADC 1"}, |
| |
| {"DAC 0", NULL, "AIF1RX"}, |
| {"DAC 1", NULL, "AIF2RX"}, |
| |
| {"Front", "DAC Switch", "DAC 0"}, |
| {"Front", "RECMIX Switch", "RECMIX"}, |
| |
| {"Surround", NULL, "DAC 1"}, |
| |
| {"SPK Mux", "Front", "Front"}, |
| {"SPK Mux", "Surround", "Surround"}, |
| |
| {"HPO Mux", "Front", "Front"}, |
| {"HPO Mux", "Surround", "Surround"}, |
| |
| {"SPO", "Switch", "SPK Mux"}, |
| {"HPO L", "Switch", "HPO Mux"}, |
| {"HPO R", "Switch", "HPO Mux"}, |
| {"HPO L", NULL, "HP Power"}, |
| {"HPO R", NULL, "HP Power"}, |
| |
| {"SPOL", NULL, "SPO"}, |
| {"SPOR", NULL, "SPO"}, |
| {"HPO Pin", NULL, "HPO L"}, |
| {"HPO Pin", NULL, "HPO R"}, |
| }; |
| |
| static int rt286_hw_params(struct snd_pcm_substream *substream, |
| struct snd_pcm_hw_params *params, |
| struct snd_soc_dai *dai) |
| { |
| struct snd_soc_codec *codec = dai->codec; |
| struct rt286_priv *rt286 = snd_soc_codec_get_drvdata(codec); |
| unsigned int val = 0; |
| int d_len_code; |
| |
| switch (params_rate(params)) { |
| /* bit 14 0:48K 1:44.1K */ |
| case 44100: |
| val |= 0x4000; |
| break; |
| case 48000: |
| break; |
| default: |
| dev_err(codec->dev, "Unsupported sample rate %d\n", |
| params_rate(params)); |
| return -EINVAL; |
| } |
| switch (rt286->sys_clk) { |
| case 12288000: |
| case 24576000: |
| if (params_rate(params) != 48000) { |
| dev_err(codec->dev, "Sys_clk is not matched (%d %d)\n", |
| params_rate(params), rt286->sys_clk); |
| return -EINVAL; |
| } |
| break; |
| case 11289600: |
| case 22579200: |
| if (params_rate(params) != 44100) { |
| dev_err(codec->dev, "Sys_clk is not matched (%d %d)\n", |
| params_rate(params), rt286->sys_clk); |
| return -EINVAL; |
| } |
| break; |
| } |
| |
| if (params_channels(params) <= 16) { |
| /* bit 3:0 Number of Channel */ |
| val |= (params_channels(params) - 1); |
| } else { |
| dev_err(codec->dev, "Unsupported channels %d\n", |
| params_channels(params)); |
| return -EINVAL; |
| } |
| |
| d_len_code = 0; |
| switch (params_width(params)) { |
| /* bit 6:4 Bits per Sample */ |
| case 16: |
| d_len_code = 0; |
| val |= (0x1 << 4); |
| break; |
| case 32: |
| d_len_code = 2; |
| val |= (0x4 << 4); |
| break; |
| case 20: |
| d_len_code = 1; |
| val |= (0x2 << 4); |
| break; |
| case 24: |
| d_len_code = 2; |
| val |= (0x3 << 4); |
| break; |
| case 8: |
| d_len_code = 3; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL1, 0x0018, d_len_code << 3); |
| dev_dbg(codec->dev, "format val = 0x%x\n", val); |
| |
| if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| snd_soc_update_bits(codec, RT286_DAC_FORMAT, 0x407f, val); |
| else |
| snd_soc_update_bits(codec, RT286_ADC_FORMAT, 0x407f, val); |
| |
| return 0; |
| } |
| |
| static int rt286_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) |
| { |
| struct snd_soc_codec *codec = dai->codec; |
| |
| switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| case SND_SOC_DAIFMT_CBM_CFM: |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL1, 0x800, 0x800); |
| break; |
| case SND_SOC_DAIFMT_CBS_CFS: |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL1, 0x800, 0x0); |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| case SND_SOC_DAIFMT_I2S: |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL1, 0x300, 0x0); |
| break; |
| case SND_SOC_DAIFMT_LEFT_J: |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL1, 0x300, 0x1 << 8); |
| break; |
| case SND_SOC_DAIFMT_DSP_A: |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL1, 0x300, 0x2 << 8); |
| break; |
| case SND_SOC_DAIFMT_DSP_B: |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL1, 0x300, 0x3 << 8); |
| break; |
| default: |
| return -EINVAL; |
| } |
| /* bit 15 Stream Type 0:PCM 1:Non-PCM */ |
| snd_soc_update_bits(codec, RT286_DAC_FORMAT, 0x8000, 0); |
| snd_soc_update_bits(codec, RT286_ADC_FORMAT, 0x8000, 0); |
| |
| return 0; |
| } |
| |
| static int rt286_set_dai_sysclk(struct snd_soc_dai *dai, |
| int clk_id, unsigned int freq, int dir) |
| { |
| struct snd_soc_codec *codec = dai->codec; |
| struct rt286_priv *rt286 = snd_soc_codec_get_drvdata(codec); |
| |
| dev_dbg(codec->dev, "%s freq=%d\n", __func__, freq); |
| |
| if (RT286_SCLK_S_MCLK == clk_id) { |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL2, 0x0100, 0x0); |
| snd_soc_update_bits(codec, |
| RT286_PLL_CTRL1, 0x20, 0x20); |
| } else { |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL2, 0x0100, 0x0100); |
| snd_soc_update_bits(codec, |
| RT286_PLL_CTRL, 0x4, 0x4); |
| snd_soc_update_bits(codec, |
| RT286_PLL_CTRL1, 0x20, 0x0); |
| } |
| |
| switch (freq) { |
| case 19200000: |
| if (RT286_SCLK_S_MCLK == clk_id) { |
| dev_err(codec->dev, "Should not use MCLK\n"); |
| return -EINVAL; |
| } |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL2, 0x40, 0x40); |
| break; |
| case 24000000: |
| if (RT286_SCLK_S_MCLK == clk_id) { |
| dev_err(codec->dev, "Should not use MCLK\n"); |
| return -EINVAL; |
| } |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL2, 0x40, 0x0); |
| break; |
| case 12288000: |
| case 11289600: |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL2, 0x8, 0x0); |
| snd_soc_update_bits(codec, |
| RT286_CLK_DIV, 0xfc1e, 0x0004); |
| break; |
| case 24576000: |
| case 22579200: |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL2, 0x8, 0x8); |
| snd_soc_update_bits(codec, |
| RT286_CLK_DIV, 0xfc1e, 0x5406); |
| break; |
| default: |
| dev_err(codec->dev, "Unsupported system clock\n"); |
| return -EINVAL; |
| } |
| |
| rt286->sys_clk = freq; |
| |
| return 0; |
| } |
| |
| static int rt286_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) |
| { |
| struct snd_soc_codec *codec = dai->codec; |
| |
| dev_dbg(codec->dev, "%s ratio=%d\n", __func__, ratio); |
| if (50 == ratio) |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL1, 0x1000, 0x1000); |
| else |
| snd_soc_update_bits(codec, |
| RT286_I2S_CTRL1, 0x1000, 0x0); |
| |
| |
| return 0; |
| } |
| |
| static int rt286_set_bias_level(struct snd_soc_codec *codec, |
| enum snd_soc_bias_level level) |
| { |
| switch (level) { |
| case SND_SOC_BIAS_PREPARE: |
| if (SND_SOC_BIAS_STANDBY == codec->dapm.bias_level) { |
| snd_soc_write(codec, |
| RT286_SET_AUDIO_POWER, AC_PWRST_D0); |
| snd_soc_update_bits(codec, |
| RT286_DC_GAIN, 0x200, 0x200); |
| } |
| break; |
| |
| case SND_SOC_BIAS_ON: |
| mdelay(10); |
| break; |
| |
| case SND_SOC_BIAS_STANDBY: |
| snd_soc_write(codec, |
| RT286_SET_AUDIO_POWER, AC_PWRST_D3); |
| snd_soc_update_bits(codec, |
| RT286_DC_GAIN, 0x200, 0x0); |
| break; |
| |
| default: |
| break; |
| } |
| codec->dapm.bias_level = level; |
| |
| return 0; |
| } |
| |
| static irqreturn_t rt286_irq(int irq, void *data) |
| { |
| struct rt286_priv *rt286 = data; |
| bool hp = false; |
| bool mic = false; |
| int status = 0; |
| |
| rt286_jack_detect(rt286, &hp, &mic); |
| |
| /* Clear IRQ */ |
| regmap_update_bits(rt286->regmap, RT286_IRQ_CTRL, 0x1, 0x1); |
| |
| if (hp == true) |
| status |= SND_JACK_HEADPHONE; |
| |
| if (mic == true) |
| status |= SND_JACK_MICROPHONE; |
| |
| snd_soc_jack_report(rt286->jack, status, |
| SND_JACK_MICROPHONE | SND_JACK_HEADPHONE); |
| |
| pm_wakeup_event(&rt286->i2c->dev, 300); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static int rt286_probe(struct snd_soc_codec *codec) |
| { |
| struct rt286_priv *rt286 = snd_soc_codec_get_drvdata(codec); |
| |
| codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
| |
| if (rt286->i2c->irq) { |
| regmap_update_bits(rt286->regmap, |
| RT286_IRQ_CTRL, 0x2, 0x2); |
| |
| INIT_DELAYED_WORK(&rt286->jack_detect_work, |
| rt286_jack_detect_work); |
| schedule_delayed_work(&rt286->jack_detect_work, |
| msecs_to_jiffies(1250)); |
| } |
| |
| return 0; |
| } |
| |
| static int rt286_remove(struct snd_soc_codec *codec) |
| { |
| struct rt286_priv *rt286 = snd_soc_codec_get_drvdata(codec); |
| |
| cancel_delayed_work_sync(&rt286->jack_detect_work); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM |
| static int rt286_suspend(struct snd_soc_codec *codec) |
| { |
| struct rt286_priv *rt286 = snd_soc_codec_get_drvdata(codec); |
| |
| regcache_cache_only(rt286->regmap, true); |
| regcache_mark_dirty(rt286->regmap); |
| |
| return 0; |
| } |
| |
| static int rt286_resume(struct snd_soc_codec *codec) |
| { |
| struct rt286_priv *rt286 = snd_soc_codec_get_drvdata(codec); |
| |
| regcache_cache_only(rt286->regmap, false); |
| rt286_index_sync(codec); |
| regcache_sync(rt286->regmap); |
| |
| return 0; |
| } |
| #else |
| #define rt286_suspend NULL |
| #define rt286_resume NULL |
| #endif |
| |
| #define RT286_STEREO_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000) |
| #define RT286_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ |
| SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8) |
| |
| static const struct snd_soc_dai_ops rt286_aif_dai_ops = { |
| .hw_params = rt286_hw_params, |
| .set_fmt = rt286_set_dai_fmt, |
| .set_sysclk = rt286_set_dai_sysclk, |
| .set_bclk_ratio = rt286_set_bclk_ratio, |
| }; |
| |
| static struct snd_soc_dai_driver rt286_dai[] = { |
| { |
| .name = "rt286-aif1", |
| .id = RT286_AIF1, |
| .playback = { |
| .stream_name = "AIF1 Playback", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = RT286_STEREO_RATES, |
| .formats = RT286_FORMATS, |
| }, |
| .capture = { |
| .stream_name = "AIF1 Capture", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = RT286_STEREO_RATES, |
| .formats = RT286_FORMATS, |
| }, |
| .ops = &rt286_aif_dai_ops, |
| .symmetric_rates = 1, |
| }, |
| { |
| .name = "rt286-aif2", |
| .id = RT286_AIF2, |
| .playback = { |
| .stream_name = "AIF2 Playback", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = RT286_STEREO_RATES, |
| .formats = RT286_FORMATS, |
| }, |
| .capture = { |
| .stream_name = "AIF2 Capture", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = RT286_STEREO_RATES, |
| .formats = RT286_FORMATS, |
| }, |
| .ops = &rt286_aif_dai_ops, |
| .symmetric_rates = 1, |
| }, |
| |
| }; |
| |
| static struct snd_soc_codec_driver soc_codec_dev_rt286 = { |
| .probe = rt286_probe, |
| .remove = rt286_remove, |
| .suspend = rt286_suspend, |
| .resume = rt286_resume, |
| .set_bias_level = rt286_set_bias_level, |
| .idle_bias_off = true, |
| .controls = rt286_snd_controls, |
| .num_controls = ARRAY_SIZE(rt286_snd_controls), |
| .dapm_widgets = rt286_dapm_widgets, |
| .num_dapm_widgets = ARRAY_SIZE(rt286_dapm_widgets), |
| .dapm_routes = rt286_dapm_routes, |
| .num_dapm_routes = ARRAY_SIZE(rt286_dapm_routes), |
| }; |
| |
| static const struct regmap_config rt286_regmap = { |
| .reg_bits = 32, |
| .val_bits = 32, |
| .max_register = 0x02370100, |
| .volatile_reg = rt286_volatile_register, |
| .readable_reg = rt286_readable_register, |
| .reg_write = rt286_hw_write, |
| .reg_read = rt286_hw_read, |
| .cache_type = REGCACHE_RBTREE, |
| .reg_defaults = rt286_reg, |
| .num_reg_defaults = ARRAY_SIZE(rt286_reg), |
| }; |
| |
| static const struct i2c_device_id rt286_i2c_id[] = { |
| {"rt286", 0}, |
| {} |
| }; |
| MODULE_DEVICE_TABLE(i2c, rt286_i2c_id); |
| |
| static const struct acpi_device_id rt286_acpi_match[] = { |
| { "INT343A", 0 }, |
| {}, |
| }; |
| MODULE_DEVICE_TABLE(acpi, rt286_acpi_match); |
| |
| static int rt286_i2c_probe(struct i2c_client *i2c, |
| const struct i2c_device_id *id) |
| { |
| struct rt286_platform_data *pdata = dev_get_platdata(&i2c->dev); |
| struct rt286_priv *rt286; |
| int i, ret; |
| |
| rt286 = devm_kzalloc(&i2c->dev, sizeof(*rt286), |
| GFP_KERNEL); |
| if (NULL == rt286) |
| return -ENOMEM; |
| |
| rt286->regmap = devm_regmap_init(&i2c->dev, NULL, i2c, &rt286_regmap); |
| if (IS_ERR(rt286->regmap)) { |
| ret = PTR_ERR(rt286->regmap); |
| dev_err(&i2c->dev, "Failed to allocate register map: %d\n", |
| ret); |
| return ret; |
| } |
| |
| regmap_read(rt286->regmap, |
| RT286_GET_PARAM(AC_NODE_ROOT, AC_PAR_VENDOR_ID), &ret); |
| if (ret != RT286_VENDOR_ID) { |
| dev_err(&i2c->dev, |
| "Device with ID register %x is not rt286\n", ret); |
| return -ENODEV; |
| } |
| |
| rt286->index_cache = rt286_index_def; |
| rt286->i2c = i2c; |
| i2c_set_clientdata(i2c, rt286); |
| |
| if (pdata) |
| rt286->pdata = *pdata; |
| |
| regmap_write(rt286->regmap, RT286_SET_AUDIO_POWER, AC_PWRST_D3); |
| |
| for (i = 0; i < RT286_POWER_REG_LEN; i++) |
| regmap_write(rt286->regmap, |
| RT286_SET_POWER(rt286_support_power_controls[i]), |
| AC_PWRST_D1); |
| |
| if (!rt286->pdata.cbj_en) { |
| regmap_write(rt286->regmap, RT286_CBJ_CTRL2, 0x0000); |
| regmap_write(rt286->regmap, RT286_MIC1_DET_CTRL, 0x0816); |
| regmap_write(rt286->regmap, RT286_MISC_CTRL1, 0x0000); |
| regmap_update_bits(rt286->regmap, |
| RT286_CBJ_CTRL1, 0xf000, 0xb000); |
| } else { |
| regmap_update_bits(rt286->regmap, |
| RT286_CBJ_CTRL1, 0xf000, 0x5000); |
| } |
| |
| mdelay(10); |
| |
| if (!rt286->pdata.gpio2_en) |
| regmap_write(rt286->regmap, RT286_SET_DMIC2_DEFAULT, 0x4000); |
| else |
| regmap_write(rt286->regmap, RT286_SET_DMIC2_DEFAULT, 0); |
| |
| mdelay(10); |
| |
| /*Power down LDO2*/ |
| regmap_update_bits(rt286->regmap, RT286_POWER_CTRL2, 0x8, 0x0); |
| |
| /*Set depop parameter*/ |
| regmap_update_bits(rt286->regmap, RT286_DEPOP_CTRL2, 0x403a, 0x401a); |
| regmap_update_bits(rt286->regmap, RT286_DEPOP_CTRL3, 0xf777, 0x4737); |
| regmap_update_bits(rt286->regmap, RT286_DEPOP_CTRL4, 0x00ff, 0x003f); |
| |
| if (rt286->i2c->irq) { |
| ret = request_threaded_irq(rt286->i2c->irq, NULL, rt286_irq, |
| IRQF_TRIGGER_HIGH | IRQF_ONESHOT, "rt286", rt286); |
| if (ret != 0) { |
| dev_err(&i2c->dev, |
| "Failed to reguest IRQ: %d\n", ret); |
| return ret; |
| } |
| } |
| |
| ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_rt286, |
| rt286_dai, ARRAY_SIZE(rt286_dai)); |
| |
| return ret; |
| } |
| |
| static int rt286_i2c_remove(struct i2c_client *i2c) |
| { |
| struct rt286_priv *rt286 = i2c_get_clientdata(i2c); |
| |
| if (i2c->irq) |
| free_irq(i2c->irq, rt286); |
| snd_soc_unregister_codec(&i2c->dev); |
| |
| return 0; |
| } |
| |
| |
| static struct i2c_driver rt286_i2c_driver = { |
| .driver = { |
| .name = "rt286", |
| .owner = THIS_MODULE, |
| .acpi_match_table = ACPI_PTR(rt286_acpi_match), |
| }, |
| .probe = rt286_i2c_probe, |
| .remove = rt286_i2c_remove, |
| .id_table = rt286_i2c_id, |
| }; |
| |
| module_i2c_driver(rt286_i2c_driver); |
| |
| MODULE_DESCRIPTION("ASoC RT286 driver"); |
| MODULE_AUTHOR("Bard Liao <bardliao@realtek.com>"); |
| MODULE_LICENSE("GPL"); |