/* * ALSA SoC TWL4030 codec driver * * Author: Steve Sakoman, * * 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. * * 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "twl4030.h" /* * twl4030 register cache & default register settings */ static const u8 twl4030_reg[TWL4030_CACHEREGNUM] = { 0x00, /* this register not used */ 0x91, /* REG_CODEC_MODE (0x1) */ 0xc3, /* REG_OPTION (0x2) */ 0x00, /* REG_UNKNOWN (0x3) */ 0x00, /* REG_MICBIAS_CTL (0x4) */ 0x20, /* REG_ANAMICL (0x5) */ 0x00, /* REG_ANAMICR (0x6) */ 0x00, /* REG_AVADC_CTL (0x7) */ 0x00, /* REG_ADCMICSEL (0x8) */ 0x00, /* REG_DIGMIXING (0x9) */ 0x0c, /* REG_ATXL1PGA (0xA) */ 0x0c, /* REG_ATXR1PGA (0xB) */ 0x00, /* REG_AVTXL2PGA (0xC) */ 0x00, /* REG_AVTXR2PGA (0xD) */ 0x01, /* REG_AUDIO_IF (0xE) */ 0x00, /* REG_VOICE_IF (0xF) */ 0x00, /* REG_ARXR1PGA (0x10) */ 0x00, /* REG_ARXL1PGA (0x11) */ 0x6c, /* REG_ARXR2PGA (0x12) */ 0x6c, /* REG_ARXL2PGA (0x13) */ 0x00, /* REG_VRXPGA (0x14) */ 0x00, /* REG_VSTPGA (0x15) */ 0x00, /* REG_VRX2ARXPGA (0x16) */ 0x0c, /* REG_AVDAC_CTL (0x17) */ 0x00, /* REG_ARX2VTXPGA (0x18) */ 0x00, /* REG_ARXL1_APGA_CTL (0x19) */ 0x00, /* REG_ARXR1_APGA_CTL (0x1A) */ 0x4b, /* REG_ARXL2_APGA_CTL (0x1B) */ 0x4b, /* REG_ARXR2_APGA_CTL (0x1C) */ 0x00, /* REG_ATX2ARXPGA (0x1D) */ 0x00, /* REG_BT_IF (0x1E) */ 0x00, /* REG_BTPGA (0x1F) */ 0x00, /* REG_BTSTPGA (0x20) */ 0x00, /* REG_EAR_CTL (0x21) */ 0x24, /* REG_HS_SEL (0x22) */ 0x0a, /* REG_HS_GAIN_SET (0x23) */ 0x00, /* REG_HS_POPN_SET (0x24) */ 0x00, /* REG_PREDL_CTL (0x25) */ 0x00, /* REG_PREDR_CTL (0x26) */ 0x00, /* REG_PRECKL_CTL (0x27) */ 0x00, /* REG_PRECKR_CTL (0x28) */ 0x00, /* REG_HFL_CTL (0x29) */ 0x00, /* REG_HFR_CTL (0x2A) */ 0x00, /* REG_ALC_CTL (0x2B) */ 0x00, /* REG_ALC_SET1 (0x2C) */ 0x00, /* REG_ALC_SET2 (0x2D) */ 0x00, /* REG_BOOST_CTL (0x2E) */ 0x00, /* REG_SOFTVOL_CTL (0x2F) */ 0x00, /* REG_DTMF_FREQSEL (0x30) */ 0x00, /* REG_DTMF_TONEXT1H (0x31) */ 0x00, /* REG_DTMF_TONEXT1L (0x32) */ 0x00, /* REG_DTMF_TONEXT2H (0x33) */ 0x00, /* REG_DTMF_TONEXT2L (0x34) */ 0x00, /* REG_DTMF_TONOFF (0x35) */ 0x00, /* REG_DTMF_WANONOFF (0x36) */ 0x00, /* REG_I2S_RX_SCRAMBLE_H (0x37) */ 0x00, /* REG_I2S_RX_SCRAMBLE_M (0x38) */ 0x00, /* REG_I2S_RX_SCRAMBLE_L (0x39) */ 0x16, /* REG_APLL_CTL (0x3A) */ 0x00, /* REG_DTMF_CTL (0x3B) */ 0x00, /* REG_DTMF_PGA_CTL2 (0x3C) */ 0x00, /* REG_DTMF_PGA_CTL1 (0x3D) */ 0x00, /* REG_MISC_SET_1 (0x3E) */ 0x00, /* REG_PCMBTMUX (0x3F) */ 0x00, /* not used (0x40) */ 0x00, /* not used (0x41) */ 0x00, /* not used (0x42) */ 0x00, /* REG_RX_PATH_SEL (0x43) */ 0x00, /* REG_VDL_APGA_CTL (0x44) */ 0x00, /* REG_VIBRA_CTL (0x45) */ 0x00, /* REG_VIBRA_SET (0x46) */ 0x00, /* REG_VIBRA_PWM_SET (0x47) */ 0x00, /* REG_ANAMIC_GAIN (0x48) */ 0x00, /* REG_MISC_SET_2 (0x49) */ }; /* * read twl4030 register cache */ static inline unsigned int twl4030_read_reg_cache(struct snd_soc_codec *codec, unsigned int reg) { u8 *cache = codec->reg_cache; if (reg >= TWL4030_CACHEREGNUM) return -EIO; return cache[reg]; } /* * write twl4030 register cache */ static inline void twl4030_write_reg_cache(struct snd_soc_codec *codec, u8 reg, u8 value) { u8 *cache = codec->reg_cache; if (reg >= TWL4030_CACHEREGNUM) return; cache[reg] = value; } /* * write to the twl4030 register space */ static int twl4030_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int value) { twl4030_write_reg_cache(codec, reg, value); return twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg); } static void twl4030_codec_enable(struct snd_soc_codec *codec, int enable) { u8 mode; mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE); if (enable) mode |= TWL4030_CODECPDZ; else mode &= ~TWL4030_CODECPDZ; twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode); /* REVISIT: this delay is present in TI sample drivers */ /* but there seems to be no TRM requirement for it */ udelay(10); } static void twl4030_init_chip(struct snd_soc_codec *codec) { int i; /* clear CODECPDZ prior to setting register defaults */ twl4030_codec_enable(codec, 0); /* set all audio section registers to reasonable defaults */ for (i = TWL4030_REG_OPTION; i <= TWL4030_REG_MISC_SET_2; i++) twl4030_write(codec, i, twl4030_reg[i]); } static void twl4030_power_up(struct snd_soc_codec *codec) { u8 anamicl, regmisc1, byte; int i = 0; /* set CODECPDZ to turn on codec */ twl4030_codec_enable(codec, 1); /* initiate offset cancellation */ anamicl = twl4030_read_reg_cache(codec, TWL4030_REG_ANAMICL); twl4030_write(codec, TWL4030_REG_ANAMICL, anamicl | TWL4030_CNCL_OFFSET_START); /* wait for offset cancellation to complete */ do { /* this takes a little while, so don't slam i2c */ udelay(2000); twl4030_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte, TWL4030_REG_ANAMICL); } while ((i++ < 100) && ((byte & TWL4030_CNCL_OFFSET_START) == TWL4030_CNCL_OFFSET_START)); /* Make sure that the reg_cache has the same value as the HW */ twl4030_write_reg_cache(codec, TWL4030_REG_ANAMICL, byte); /* anti-pop when changing analog gain */ regmisc1 = twl4030_read_reg_cache(codec, TWL4030_REG_MISC_SET_1); twl4030_write(codec, TWL4030_REG_MISC_SET_1, regmisc1 | TWL4030_SMOOTH_ANAVOL_EN); /* toggle CODECPDZ as per TRM */ twl4030_codec_enable(codec, 0); twl4030_codec_enable(codec, 1); } static void twl4030_power_down(struct snd_soc_codec *codec) { /* power down */ twl4030_codec_enable(codec, 0); } /* Earpiece */ static const char *twl4030_earpiece_texts[] = {"Off", "DACL1", "DACL2", "DACR1"}; static const unsigned int twl4030_earpiece_values[] = {0x0, 0x1, 0x2, 0x4}; static const struct soc_enum twl4030_earpiece_enum = SOC_VALUE_ENUM_SINGLE(TWL4030_REG_EAR_CTL, 1, 0x7, ARRAY_SIZE(twl4030_earpiece_texts), twl4030_earpiece_texts, twl4030_earpiece_values); static const struct snd_kcontrol_new twl4030_dapm_earpiece_control = SOC_DAPM_VALUE_ENUM("Route", twl4030_earpiece_enum); /* PreDrive Left */ static const char *twl4030_predrivel_texts[] = {"Off", "DACL1", "DACL2", "DACR2"}; static const unsigned int twl4030_predrivel_values[] = {0x0, 0x1, 0x2, 0x4}; static const struct soc_enum twl4030_predrivel_enum = SOC_VALUE_ENUM_SINGLE(TWL4030_REG_PREDL_CTL, 1, 0x7, ARRAY_SIZE(twl4030_predrivel_texts), twl4030_predrivel_texts, twl4030_predrivel_values); static const struct snd_kcontrol_new twl4030_dapm_predrivel_control = SOC_DAPM_VALUE_ENUM("Route", twl4030_predrivel_enum); /* PreDrive Right */ static const char *twl4030_predriver_texts[] = {"Off", "DACR1", "DACR2", "DACL2"}; static const unsigned int twl4030_predriver_values[] = {0x0, 0x1, 0x2, 0x4}; static const struct soc_enum twl4030_predriver_enum = SOC_VALUE_ENUM_SINGLE(TWL4030_REG_PREDR_CTL, 1, 0x7, ARRAY_SIZE(twl4030_predriver_texts), twl4030_predriver_texts, twl4030_predriver_values); static const struct snd_kcontrol_new twl4030_dapm_predriver_control = SOC_DAPM_VALUE_ENUM("Route", twl4030_predriver_enum); /* Headset Left */ static const char *twl4030_hsol_texts[] = {"Off", "DACL1", "DACL2"}; static const struct soc_enum twl4030_hsol_enum = SOC_ENUM_SINGLE(TWL4030_REG_HS_SEL, 1, ARRAY_SIZE(twl4030_hsol_texts), twl4030_hsol_texts); static const struct snd_kcontrol_new twl4030_dapm_hsol_control = SOC_DAPM_ENUM("Route", twl4030_hsol_enum); /* Headset Right */ static const char *twl4030_hsor_texts[] = {"Off", "DACR1", "DACR2"}; static const struct soc_enum twl4030_hsor_enum = SOC_ENUM_SINGLE(TWL4030_REG_HS_SEL, 4, ARRAY_SIZE(twl4030_hsor_texts), twl4030_hsor_texts); static const struct snd_kcontrol_new twl4030_dapm_hsor_control = SOC_DAPM_ENUM("Route", twl4030_hsor_enum); /* Carkit Left */ static const char *twl4030_carkitl_texts[] = {"Off", "DACL1", "DACL2"}; static const struct soc_enum twl4030_carkitl_enum = SOC_ENUM_SINGLE(TWL4030_REG_PRECKL_CTL, 1, ARRAY_SIZE(twl4030_carkitl_texts), twl4030_carkitl_texts); static const struct snd_kcontrol_new twl4030_dapm_carkitl_control = SOC_DAPM_ENUM("Route", twl4030_carkitl_enum); /* Carkit Right */ static const char *twl4030_carkitr_texts[] = {"Off", "DACR1", "DACR2"}; static const struct soc_enum twl4030_carkitr_enum = SOC_ENUM_SINGLE(TWL4030_REG_PRECKR_CTL, 1, ARRAY_SIZE(twl4030_carkitr_texts), twl4030_carkitr_texts); static const struct snd_kcontrol_new twl4030_dapm_carkitr_control = SOC_DAPM_ENUM("Route", twl4030_carkitr_enum); /* Handsfree Left */ static const char *twl4030_handsfreel_texts[] = {"Voice", "DACL1", "DACL2", "DACR2"}; static const struct soc_enum twl4030_handsfreel_enum = SOC_ENUM_SINGLE(TWL4030_REG_HFL_CTL, 0, ARRAY_SIZE(twl4030_handsfreel_texts), twl4030_handsfreel_texts); static const struct snd_kcontrol_new twl4030_dapm_handsfreel_control = SOC_DAPM_ENUM("Route", twl4030_handsfreel_enum); /* Handsfree Right */ static const char *twl4030_handsfreer_texts[] = {"Voice", "DACR1", "DACR2", "DACL2"}; static const struct soc_enum twl4030_handsfreer_enum = SOC_ENUM_SINGLE(TWL4030_REG_HFR_CTL, 0, ARRAY_SIZE(twl4030_handsfreer_texts), twl4030_handsfreer_texts); static const struct snd_kcontrol_new twl4030_dapm_handsfreer_control = SOC_DAPM_ENUM("Route", twl4030_handsfreer_enum); /* Left analog microphone selection */ static const char *twl4030_analoglmic_texts[] = {"Off", "Main mic", "Headset mic", "AUXL", "Carkit mic"}; static const unsigned int twl4030_analoglmic_values[] = {0x0, 0x1, 0x2, 0x4, 0x8}; static const struct soc_enum twl4030_analoglmic_enum = SOC_VALUE_ENUM_SINGLE(TWL4030_REG_ANAMICL, 0, 0xf, ARRAY_SIZE(twl4030_analoglmic_texts), twl4030_analoglmic_texts, twl4030_analoglmic_values); static const struct snd_kcontrol_new twl4030_dapm_analoglmic_control = SOC_DAPM_VALUE_ENUM("Route", twl4030_analoglmic_enum); /* Right analog microphone selection */ static const char *twl4030_analogrmic_texts[] = {"Off", "Sub mic", "AUXR"}; static const unsigned int twl4030_analogrmic_values[] = {0x0, 0x1, 0x4}; static const struct soc_enum twl4030_analogrmic_enum = SOC_VALUE_ENUM_SINGLE(TWL4030_REG_ANAMICR, 0, 0x5, ARRAY_SIZE(twl4030_analogrmic_texts), twl4030_analogrmic_texts, twl4030_analogrmic_values); static const struct snd_kcontrol_new twl4030_dapm_analogrmic_control = SOC_DAPM_VALUE_ENUM("Route", twl4030_analogrmic_enum); /* TX1 L/R Analog/Digital microphone selection */ static const char *twl4030_micpathtx1_texts[] = {"Analog", "Digimic0"}; static const struct soc_enum twl4030_micpathtx1_enum = SOC_ENUM_SINGLE(TWL4030_REG_ADCMICSEL, 0, ARRAY_SIZE(twl4030_micpathtx1_texts), twl4030_micpathtx1_texts); static const struct snd_kcontrol_new twl4030_dapm_micpathtx1_control = SOC_DAPM_ENUM("Route", twl4030_micpathtx1_enum); /* TX2 L/R Analog/Digital microphone selection */ static const char *twl4030_micpathtx2_texts[] = {"Analog", "Digimic1"}; static const struct soc_enum twl4030_micpathtx2_enum = SOC_ENUM_SINGLE(TWL4030_REG_ADCMICSEL, 2, ARRAY_SIZE(twl4030_micpathtx2_texts), twl4030_micpathtx2_texts); static const struct snd_kcontrol_new twl4030_dapm_micpathtx2_control = SOC_DAPM_ENUM("Route", twl4030_micpathtx2_enum); static int micpath_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct soc_enum *e = (struct soc_enum *)w->kcontrols->private_value; unsigned char adcmicsel, micbias_ctl; adcmicsel = twl4030_read_reg_cache(w->codec, TWL4030_REG_ADCMICSEL); micbias_ctl = twl4030_read_reg_cache(w->codec, TWL4030_REG_MICBIAS_CTL); /* Prepare the bits for the given TX path: * shift_l == 0: TX1 microphone path * shift_l == 2: TX2 microphone path */ if (e->shift_l) { /* TX2 microphone path */ if (adcmicsel & TWL4030_TX2IN_SEL) micbias_ctl |= TWL4030_MICBIAS2_CTL; /* digimic */ else micbias_ctl &= ~TWL4030_MICBIAS2_CTL; } else { /* TX1 microphone path */ if (adcmicsel & TWL4030_TX1IN_SEL) micbias_ctl |= TWL4030_MICBIAS1_CTL; /* digimic */ else micbias_ctl &= ~TWL4030_MICBIAS1_CTL; } twl4030_write(w->codec, TWL4030_REG_MICBIAS_CTL, micbias_ctl); return 0; } static int handsfree_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct soc_enum *e = (struct soc_enum *)w->kcontrols->private_value; unsigned char hs_ctl; hs_ctl = twl4030_read_reg_cache(w->codec, e->reg); if (hs_ctl & TWL4030_HF_CTL_REF_EN) { hs_ctl |= TWL4030_HF_CTL_RAMP_EN; twl4030_write(w->codec, e->reg, hs_ctl); hs_ctl |= TWL4030_HF_CTL_LOOP_EN; twl4030_write(w->codec, e->reg, hs_ctl); hs_ctl |= TWL4030_HF_CTL_HB_EN; twl4030_write(w->codec, e->reg, hs_ctl); } else { hs_ctl &= ~(TWL4030_HF_CTL_RAMP_EN | TWL4030_HF_CTL_LOOP_EN | TWL4030_HF_CTL_HB_EN); twl4030_write(w->codec, e->reg, hs_ctl); } return 0; } static int headsetl_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { unsigned char hs_gain, hs_pop; /* Save the current volume */ hs_gain = twl4030_read_reg_cache(w->codec, TWL4030_REG_HS_GAIN_SET); switch (event) { case SND_SOC_DAPM_POST_PMU: /* Do the anti-pop/bias ramp enable according to the TRM */ hs_pop = TWL4030_RAMP_DELAY_645MS; twl4030_write(w->codec, TWL4030_REG_HS_POPN_SET, hs_pop); hs_pop |= TWL4030_VMID_EN; twl4030_write(w->codec, TWL4030_REG_HS_POPN_SET, hs_pop); /* Is this needed? Can we just use whatever gain here? */ twl4030_write(w->codec, TWL4030_REG_HS_GAIN_SET, (hs_gain & (~0x0f)) | 0x0a); hs_pop |= TWL4030_RAMP_EN; twl4030_write(w->codec, TWL4030_REG_HS_POPN_SET, hs_pop); /* Restore the original volume */ twl4030_write(w->codec, TWL4030_REG_HS_GAIN_SET, hs_gain); break; case SND_SOC_DAPM_POST_PMD: /* Do the anti-pop/bias ramp disable according to the TRM */ hs_pop = twl4030_read_reg_cache(w->codec, TWL4030_REG_HS_POPN_SET); hs_pop &= ~TWL4030_RAMP_EN; twl4030_write(w->codec, TWL4030_REG_HS_POPN_SET, hs_pop); /* Bypass the reg_cache to mute the headset */ twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain & (~0x0f), TWL4030_REG_HS_GAIN_SET); hs_pop &= ~TWL4030_VMID_EN; twl4030_write(w->codec, TWL4030_REG_HS_POPN_SET, hs_pop); break; } return 0; } /* * Some of the gain controls in TWL (mostly those which are associated with * the outputs) are implemented in an interesting way: * 0x0 : Power down (mute) * 0x1 : 6dB * 0x2 : 0 dB * 0x3 : -6 dB * Inverting not going to help with these. * Custom volsw and volsw_2r get/put functions to handle these gain bits. */ #define SOC_DOUBLE_TLV_TWL4030(xname, xreg, shift_left, shift_right, xmax,\ xinvert, tlv_array) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ SNDRV_CTL_ELEM_ACCESS_READWRITE,\ .tlv.p = (tlv_array), \ .info = snd_soc_info_volsw, \ .get = snd_soc_get_volsw_twl4030, \ .put = snd_soc_put_volsw_twl4030, \ .private_value = (unsigned long)&(struct soc_mixer_control) \ {.reg = xreg, .shift = shift_left, .rshift = shift_right,\ .max = xmax, .invert = xinvert} } #define SOC_DOUBLE_R_TLV_TWL4030(xname, reg_left, reg_right, xshift, xmax,\ xinvert, tlv_array) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ SNDRV_CTL_ELEM_ACCESS_READWRITE,\ .tlv.p = (tlv_array), \ .info = snd_soc_info_volsw_2r, \ .get = snd_soc_get_volsw_r2_twl4030,\ .put = snd_soc_put_volsw_r2_twl4030, \ .private_value = (unsigned long)&(struct soc_mixer_control) \ {.reg = reg_left, .rreg = reg_right, .shift = xshift, \ .rshift = xshift, .max = xmax, .invert = xinvert} } #define SOC_SINGLE_TLV_TWL4030(xname, xreg, xshift, xmax, xinvert, tlv_array) \ SOC_DOUBLE_TLV_TWL4030(xname, xreg, xshift, xshift, xmax, \ xinvert, tlv_array) static int snd_soc_get_volsw_twl4030(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); unsigned int reg = mc->reg; unsigned int shift = mc->shift; unsigned int rshift = mc->rshift; int max = mc->max; int mask = (1 << fls(max)) - 1; ucontrol->value.integer.value[0] = (snd_soc_read(codec, reg) >> shift) & mask; if (ucontrol->value.integer.value[0]) ucontrol->value.integer.value[0] = max + 1 - ucontrol->value.integer.value[0]; if (shift != rshift) { ucontrol->value.integer.value[1] = (snd_soc_read(codec, reg) >> rshift) & mask; if (ucontrol->value.integer.value[1]) ucontrol->value.integer.value[1] = max + 1 - ucontrol->value.integer.value[1]; } return 0; } static int snd_soc_put_volsw_twl4030(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); unsigned int reg = mc->reg; unsigned int shift = mc->shift; unsigned int rshift = mc->rshift; int max = mc->max; int mask = (1 << fls(max)) - 1; unsigned short val, val2, val_mask; val = (ucontrol->value.integer.value[0] & mask); val_mask = mask << shift; if (val) val = max + 1 - val; val = val << shift; if (shift != rshift) { val2 = (ucontrol->value.integer.value[1] & mask); val_mask |= mask << rshift; if (val2) val2 = max + 1 - val2; val |= val2 << rshift; } return snd_soc_update_bits(codec, reg, val_mask, val); } static int snd_soc_get_volsw_r2_twl4030(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); unsigned int reg = mc->reg; unsigned int reg2 = mc->rreg; unsigned int shift = mc->shift; int max = mc->max; int mask = (1<value.integer.value[0] = (snd_soc_read(codec, reg) >> shift) & mask; ucontrol->value.integer.value[1] = (snd_soc_read(codec, reg2) >> shift) & mask; if (ucontrol->value.integer.value[0]) ucontrol->value.integer.value[0] = max + 1 - ucontrol->value.integer.value[0]; if (ucontrol->value.integer.value[1]) ucontrol->value.integer.value[1] = max + 1 - ucontrol->value.integer.value[1]; return 0; } static int snd_soc_put_volsw_r2_twl4030(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); unsigned int reg = mc->reg; unsigned int reg2 = mc->rreg; unsigned int shift = mc->shift; int max = mc->max; int mask = (1 << fls(max)) - 1; int err; unsigned short val, val2, val_mask; val_mask = mask << shift; val = (ucontrol->value.integer.value[0] & mask); val2 = (ucontrol->value.integer.value[1] & mask); if (val) val = max + 1 - val; if (val2) val2 = max + 1 - val2; val = val << shift; val2 = val2 << shift; err = snd_soc_update_bits(codec, reg, val_mask, val); if (err < 0) return err; err = snd_soc_update_bits(codec, reg2, val_mask, val2); return err; } /* * FGAIN volume control: * from -62 to 0 dB in 1 dB steps (mute instead of -63 dB) */ static DECLARE_TLV_DB_SCALE(digital_fine_tlv, -6300, 100, 1); /* * CGAIN volume control: * 0 dB to 12 dB in 6 dB steps * value 2 and 3 means 12 dB */ static DECLARE_TLV_DB_SCALE(digital_coarse_tlv, 0, 600, 0); /* * Analog playback gain * -24 dB to 12 dB in 2 dB steps */ static DECLARE_TLV_DB_SCALE(analog_tlv, -2400, 200, 0); /* * Gain controls tied to outputs * -6 dB to 6 dB in 6 dB steps (mute instead of -12) */ static DECLARE_TLV_DB_SCALE(output_tvl, -1200, 600, 1); /* * Capture gain after the ADCs * from 0 dB to 31 dB in 1 dB steps */ static DECLARE_TLV_DB_SCALE(digital_capture_tlv, 0, 100, 0); /* * Gain control for input amplifiers * 0 dB to 30 dB in 6 dB steps */ static DECLARE_TLV_DB_SCALE(input_gain_tlv, 0, 600, 0); static const struct snd_kcontrol_new twl4030_snd_controls[] = { /* Common playback gain controls */ SOC_DOUBLE_R_TLV("DAC1 Digital Fine Playback Volume", TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA, 0, 0x3f, 0, digital_fine_tlv), SOC_DOUBLE_R_TLV("DAC2 Digital Fine Playback Volume", TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA, 0, 0x3f, 0, digital_fine_tlv), SOC_DOUBLE_R_TLV("DAC1 Digital Coarse Playback Volume", TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA, 6, 0x2, 0, digital_coarse_tlv), SOC_DOUBLE_R_TLV("DAC2 Digital Coarse Playback Volume", TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA, 6, 0x2, 0, digital_coarse_tlv), SOC_DOUBLE_R_TLV("DAC1 Analog Playback Volume", TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL, 3, 0x12, 1, analog_tlv), SOC_DOUBLE_R_TLV("DAC2 Analog Playback Volume", TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL, 3, 0x12, 1, analog_tlv), SOC_DOUBLE_R("DAC1 Analog Playback Switch", TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL, 1, 1, 0), SOC_DOUBLE_R("DAC2 Analog Playback Switch", TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL, 1, 1, 0), /* Separate output gain controls */ SOC_DOUBLE_R_TLV_TWL4030("PreDriv Playback Volume", TWL4030_REG_PREDL_CTL, TWL4030_REG_PREDR_CTL, 4, 3, 0, output_tvl), SOC_DOUBLE_TLV_TWL4030("Headset Playback Volume", TWL4030_REG_HS_GAIN_SET, 0, 2, 3, 0, output_tvl), SOC_DOUBLE_R_TLV_TWL4030("Carkit Playback Volume", TWL4030_REG_PRECKL_CTL, TWL4030_REG_PRECKR_CTL, 4, 3, 0, output_tvl), SOC_SINGLE_TLV_TWL4030("Earpiece Playback Volume", TWL4030_REG_EAR_CTL, 4, 3, 0, output_tvl), /* Common capture gain controls */ SOC_DOUBLE_R_TLV("TX1 Digital Capture Volume", TWL4030_REG_ATXL1PGA, TWL4030_REG_ATXR1PGA, 0, 0x1f, 0, digital_capture_tlv), SOC_DOUBLE_R_TLV("TX2 Digital Capture Volume", TWL4030_REG_AVTXL2PGA, TWL4030_REG_AVTXR2PGA, 0, 0x1f, 0, digital_capture_tlv), SOC_DOUBLE_TLV("Analog Capture Volume", TWL4030_REG_ANAMIC_GAIN, 0, 3, 5, 0, input_gain_tlv), }; static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = { /* Left channel inputs */ SND_SOC_DAPM_INPUT("MAINMIC"), SND_SOC_DAPM_INPUT("HSMIC"), SND_SOC_DAPM_INPUT("AUXL"), SND_SOC_DAPM_INPUT("CARKITMIC"), /* Right channel inputs */ SND_SOC_DAPM_INPUT("SUBMIC"), SND_SOC_DAPM_INPUT("AUXR"), /* Digital microphones (Stereo) */ SND_SOC_DAPM_INPUT("DIGIMIC0"), SND_SOC_DAPM_INPUT("DIGIMIC1"), /* Outputs */ SND_SOC_DAPM_OUTPUT("OUTL"), SND_SOC_DAPM_OUTPUT("OUTR"), SND_SOC_DAPM_OUTPUT("EARPIECE"), SND_SOC_DAPM_OUTPUT("PREDRIVEL"), SND_SOC_DAPM_OUTPUT("PREDRIVER"), SND_SOC_DAPM_OUTPUT("HSOL"), SND_SOC_DAPM_OUTPUT("HSOR"), SND_SOC_DAPM_OUTPUT("CARKITL"), SND_SOC_DAPM_OUTPUT("CARKITR"), SND_SOC_DAPM_OUTPUT("HFL"), SND_SOC_DAPM_OUTPUT("HFR"), /* DACs */ SND_SOC_DAPM_DAC("DAC Right1", "Right Front Playback", TWL4030_REG_AVDAC_CTL, 0, 0), SND_SOC_DAPM_DAC("DAC Left1", "Left Front Playback", TWL4030_REG_AVDAC_CTL, 1, 0), SND_SOC_DAPM_DAC("DAC Right2", "Right Rear Playback", TWL4030_REG_AVDAC_CTL, 2, 0), SND_SOC_DAPM_DAC("DAC Left2", "Left Rear Playback", TWL4030_REG_AVDAC_CTL, 3, 0), /* Analog PGAs */ SND_SOC_DAPM_PGA("ARXR1_APGA", TWL4030_REG_ARXR1_APGA_CTL, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("ARXL1_APGA", TWL4030_REG_ARXL1_APGA_CTL, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("ARXR2_APGA", TWL4030_REG_ARXR2_APGA_CTL, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("ARXL2_APGA", TWL4030_REG_ARXL2_APGA_CTL, 0, 0, NULL, 0), /* Output MUX controls */ /* Earpiece */ SND_SOC_DAPM_VALUE_MUX("Earpiece Mux", SND_SOC_NOPM, 0, 0, &twl4030_dapm_earpiece_control), /* PreDrivL/R */ SND_SOC_DAPM_VALUE_MUX("PredriveL Mux", SND_SOC_NOPM, 0, 0, &twl4030_dapm_predrivel_control), SND_SOC_DAPM_VALUE_MUX("PredriveR Mux", SND_SOC_NOPM, 0, 0, &twl4030_dapm_predriver_control), /* HeadsetL/R */ SND_SOC_DAPM_MUX_E("HeadsetL Mux", SND_SOC_NOPM, 0, 0, &twl4030_dapm_hsol_control, headsetl_event, SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_MUX("HeadsetR Mux", SND_SOC_NOPM, 0, 0, &twl4030_dapm_hsor_control), /* CarkitL/R */ SND_SOC_DAPM_MUX("CarkitL Mux", SND_SOC_NOPM, 0, 0, &twl4030_dapm_carkitl_control), SND_SOC_DAPM_MUX("CarkitR Mux", SND_SOC_NOPM, 0, 0, &twl4030_dapm_carkitr_control), /* HandsfreeL/R */ SND_SOC_DAPM_MUX_E("HandsfreeL Mux", TWL4030_REG_HFL_CTL, 5, 0, &twl4030_dapm_handsfreel_control, handsfree_event, SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_MUX_E("HandsfreeR Mux", TWL4030_REG_HFR_CTL, 5, 0, &twl4030_dapm_handsfreer_control, handsfree_event, SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD), /* Introducing four virtual ADC, since TWL4030 have four channel for capture */ SND_SOC_DAPM_ADC("ADC Virtual Left1", "Left Front Capture", SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_ADC("ADC Virtual Right1", "Right Front Capture", SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_ADC("ADC Virtual Left2", "Left Rear Capture", SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_ADC("ADC Virtual Right2", "Right Rear Capture", SND_SOC_NOPM, 0, 0), /* Analog/Digital mic path selection. TX1 Left/Right: either analog Left/Right or Digimic0 TX2 Left/Right: either analog Left/Right or Digimic1 */ SND_SOC_DAPM_MUX_E("TX1 Capture Route", SND_SOC_NOPM, 0, 0, &twl4030_dapm_micpathtx1_control, micpath_event, SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD| SND_SOC_DAPM_POST_REG), SND_SOC_DAPM_MUX_E("TX2 Capture Route", SND_SOC_NOPM, 0, 0, &twl4030_dapm_micpathtx2_control, micpath_event, SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD| SND_SOC_DAPM_POST_REG), /* Analog input muxes with switch for the capture amplifiers */ SND_SOC_DAPM_VALUE_MUX("Analog Left Capture Route", TWL4030_REG_ANAMICL, 4, 0, &twl4030_dapm_analoglmic_control), SND_SOC_DAPM_VALUE_MUX("Analog Right Capture Route", TWL4030_REG_ANAMICR, 4, 0, &twl4030_dapm_analogrmic_control), SND_SOC_DAPM_PGA("ADC Physical Left", TWL4030_REG_AVADC_CTL, 3, 0, NULL, 0), SND_SOC_DAPM_PGA("ADC Physical Right", TWL4030_REG_AVADC_CTL, 1, 0, NULL, 0), SND_SOC_DAPM_PGA("Digimic0 Enable", TWL4030_REG_ADCMICSEL, 1, 0, NULL, 0), SND_SOC_DAPM_PGA("Digimic1 Enable", TWL4030_REG_ADCMICSEL, 3, 0, NULL, 0), SND_SOC_DAPM_MICBIAS("Mic Bias 1", TWL4030_REG_MICBIAS_CTL, 0, 0), SND_SOC_DAPM_MICBIAS("Mic Bias 2", TWL4030_REG_MICBIAS_CTL, 1, 0), SND_SOC_DAPM_MICBIAS("Headset Mic Bias", TWL4030_REG_MICBIAS_CTL, 2, 0), }; static const struct snd_soc_dapm_route intercon[] = { {"ARXL1_APGA", NULL, "DAC Left1"}, {"ARXR1_APGA", NULL, "DAC Right1"}, {"ARXL2_APGA", NULL, "DAC Left2"}, {"ARXR2_APGA", NULL, "DAC Right2"}, /* Internal playback routings */ /* Earpiece */ {"Earpiece Mux", "DACL1", "ARXL1_APGA"}, {"Earpiece Mux", "DACL2", "ARXL2_APGA"}, {"Earpiece Mux", "DACR1", "ARXR1_APGA"}, /* PreDrivL */ {"PredriveL Mux", "DACL1", "ARXL1_APGA"}, {"PredriveL Mux", "DACL2", "ARXL2_APGA"}, {"PredriveL Mux", "DACR2", "ARXR2_APGA"}, /* PreDrivR */ {"PredriveR Mux", "DACR1", "ARXR1_APGA"}, {"PredriveR Mux", "DACR2", "ARXR2_APGA"}, {"PredriveR Mux", "DACL2", "ARXL2_APGA"}, /* HeadsetL */ {"HeadsetL Mux", "DACL1", "ARXL1_APGA"}, {"HeadsetL Mux", "DACL2", "ARXL2_APGA"}, /* HeadsetR */ {"HeadsetR Mux", "DACR1", "ARXR1_APGA"}, {"HeadsetR Mux", "DACR2", "ARXR2_APGA"}, /* CarkitL */ {"CarkitL Mux", "DACL1", "ARXL1_APGA"}, {"CarkitL Mux", "DACL2", "ARXL2_APGA"}, /* CarkitR */ {"CarkitR Mux", "DACR1", "ARXR1_APGA"}, {"CarkitR Mux", "DACR2", "ARXR2_APGA"}, /* HandsfreeL */ {"HandsfreeL Mux", "DACL1", "ARXL1_APGA"}, {"HandsfreeL Mux", "DACL2", "ARXL2_APGA"}, {"HandsfreeL Mux", "DACR2", "ARXR2_APGA"}, /* HandsfreeR */ {"HandsfreeR Mux", "DACR1", "ARXR1_APGA"}, {"HandsfreeR Mux", "DACR2", "ARXR2_APGA"}, {"HandsfreeR Mux", "DACL2", "ARXL2_APGA"}, /* outputs */ {"OUTL", NULL, "ARXL2_APGA"}, {"OUTR", NULL, "ARXR2_APGA"}, {"EARPIECE", NULL, "Earpiece Mux"}, {"PREDRIVEL", NULL, "PredriveL Mux"}, {"PREDRIVER", NULL, "PredriveR Mux"}, {"HSOL", NULL, "HeadsetL Mux"}, {"HSOR", NULL, "HeadsetR Mux"}, {"CARKITL", NULL, "CarkitL Mux"}, {"CARKITR", NULL, "CarkitR Mux"}, {"HFL", NULL, "HandsfreeL Mux"}, {"HFR", NULL, "HandsfreeR Mux"}, /* Capture path */ {"Analog Left Capture Route", "Main mic", "MAINMIC"}, {"Analog Left Capture Route", "Headset mic", "HSMIC"}, {"Analog Left Capture Route", "AUXL", "AUXL"}, {"Analog Left Capture Route", "Carkit mic", "CARKITMIC"}, {"Analog Right Capture Route", "Sub mic", "SUBMIC"}, {"Analog Right Capture Route", "AUXR", "AUXR"}, {"ADC Physical Left", NULL, "Analog Left Capture Route"}, {"ADC Physical Right", NULL, "Analog Right Capture Route"}, {"Digimic0 Enable", NULL, "DIGIMIC0"}, {"Digimic1 Enable", NULL, "DIGIMIC1"}, /* TX1 Left capture path */ {"TX1 Capture Route", "Analog", "ADC Physical Left"}, {"TX1 Capture Route", "Digimic0", "Digimic0 Enable"}, /* TX1 Right capture path */ {"TX1 Capture Route", "Analog", "ADC Physical Right"}, {"TX1 Capture Route", "Digimic0", "Digimic0 Enable"}, /* TX2 Left capture path */ {"TX2 Capture Route", "Analog", "ADC Physical Left"}, {"TX2 Capture Route", "Digimic1", "Digimic1 Enable"}, /* TX2 Right capture path */ {"TX2 Capture Route", "Analog", "ADC Physical Right"}, {"TX2 Capture Route", "Digimic1", "Digimic1 Enable"}, {"ADC Virtual Left1", NULL, "TX1 Capture Route"}, {"ADC Virtual Right1", NULL, "TX1 Capture Route"}, {"ADC Virtual Left2", NULL, "TX2 Capture Route"}, {"ADC Virtual Right2", NULL, "TX2 Capture Route"}, }; static int twl4030_add_widgets(struct snd_soc_codec *codec) { snd_soc_dapm_new_controls(codec, twl4030_dapm_widgets, ARRAY_SIZE(twl4030_dapm_widgets)); snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon)); snd_soc_dapm_new_widgets(codec); return 0; } static int twl4030_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { switch (level) { case SND_SOC_BIAS_ON: twl4030_power_up(codec); break; case SND_SOC_BIAS_PREPARE: /* TODO: develop a twl4030_prepare function */ break; case SND_SOC_BIAS_STANDBY: /* TODO: develop a twl4030_standby function */ twl4030_power_down(codec); break; case SND_SOC_BIAS_OFF: twl4030_power_down(codec); break; } codec->bias_level = level; return 0; } static int twl4030_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_device *socdev = rtd->socdev; struct snd_soc_codec *codec = socdev->card->codec; u8 mode, old_mode, format, old_format; /* bit rate */ old_mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ; mode = old_mode & ~TWL4030_APLL_RATE; switch (params_rate(params)) { case 8000: mode |= TWL4030_APLL_RATE_8000; break; case 11025: mode |= TWL4030_APLL_RATE_11025; break; case 12000: mode |= TWL4030_APLL_RATE_12000; break; case 16000: mode |= TWL4030_APLL_RATE_16000; break; case 22050: mode |= TWL4030_APLL_RATE_22050; break; case 24000: mode |= TWL4030_APLL_RATE_24000; break; case 32000: mode |= TWL4030_APLL_RATE_32000; break; case 44100: mode |= TWL4030_APLL_RATE_44100; break; case 48000: mode |= TWL4030_APLL_RATE_48000; break; default: printk(KERN_ERR "TWL4030 hw params: unknown rate %d\n", params_rate(params)); return -EINVAL; } if (mode != old_mode) { /* change rate and set CODECPDZ */ twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode); twl4030_codec_enable(codec, 1); } /* sample size */ old_format = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF); format = old_format; format &= ~TWL4030_DATA_WIDTH; switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: format |= TWL4030_DATA_WIDTH_16S_16W; break; case SNDRV_PCM_FORMAT_S24_LE: format |= TWL4030_DATA_WIDTH_32S_24W; break; default: printk(KERN_ERR "TWL4030 hw params: unknown format %d\n", params_format(params)); return -EINVAL; } if (format != old_format) { /* clear CODECPDZ before changing format (codec requirement) */ twl4030_codec_enable(codec, 0); /* change format */ twl4030_write(codec, TWL4030_REG_AUDIO_IF, format); /* set CODECPDZ afterwards */ twl4030_codec_enable(codec, 1); } return 0; } static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_codec *codec = codec_dai->codec; u8 infreq; switch (freq) { case 19200000: infreq = TWL4030_APLL_INFREQ_19200KHZ; break; case 26000000: infreq = TWL4030_APLL_INFREQ_26000KHZ; break; case 38400000: infreq = TWL4030_APLL_INFREQ_38400KHZ; break; default: printk(KERN_ERR "TWL4030 set sysclk: unknown rate %d\n", freq); return -EINVAL; } infreq |= TWL4030_APLL_EN; twl4030_write(codec, TWL4030_REG_APLL_CTL, infreq); return 0; } static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { struct snd_soc_codec *codec = codec_dai->codec; u8 old_format, format; /* get format */ old_format = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF); format = old_format; /* set master/slave audio interface */ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBM_CFM: format &= ~(TWL4030_AIF_SLAVE_EN); format &= ~(TWL4030_CLK256FS_EN); break; case SND_SOC_DAIFMT_CBS_CFS: format |= TWL4030_AIF_SLAVE_EN; format |= TWL4030_CLK256FS_EN; break; default: return -EINVAL; } /* interface format */ format &= ~TWL4030_AIF_FORMAT; switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: format |= TWL4030_AIF_FORMAT_CODEC; break; default: return -EINVAL; } if (format != old_format) { /* clear CODECPDZ before changing format (codec requirement) */ twl4030_codec_enable(codec, 0); /* change format */ twl4030_write(codec, TWL4030_REG_AUDIO_IF, format); /* set CODECPDZ afterwards */ twl4030_codec_enable(codec, 1); } return 0; } #define TWL4030_RATES (SNDRV_PCM_RATE_8000_48000) #define TWL4030_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FORMAT_S24_LE) struct snd_soc_dai twl4030_dai = { .name = "twl4030", .playback = { .stream_name = "Playback", .channels_min = 2, .channels_max = 2, .rates = TWL4030_RATES, .formats = TWL4030_FORMATS,}, .capture = { .stream_name = "Capture", .channels_min = 2, .channels_max = 2, .rates = TWL4030_RATES, .formats = TWL4030_FORMATS,}, .ops = { .hw_params = twl4030_hw_params, .set_sysclk = twl4030_set_dai_sysclk, .set_fmt = twl4030_set_dai_fmt, } }; EXPORT_SYMBOL_GPL(twl4030_dai); static int twl4030_suspend(struct platform_device *pdev, pm_message_t state) { struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct snd_soc_codec *codec = socdev->card->codec; twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } static int twl4030_resume(struct platform_device *pdev) { struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct snd_soc_codec *codec = socdev->card->codec; twl4030_set_bias_level(codec, SND_SOC_BIAS_STANDBY); twl4030_set_bias_level(codec, codec->suspend_bias_level); return 0; } /* * initialize the driver * register the mixer and dsp interfaces with the kernel */ static int twl4030_init(struct snd_soc_device *socdev) { struct snd_soc_codec *codec = socdev->card->codec; int ret = 0; printk(KERN_INFO "TWL4030 Audio Codec init \n"); codec->name = "twl4030"; codec->owner = THIS_MODULE; codec->read = twl4030_read_reg_cache; codec->write = twl4030_write; codec->set_bias_level = twl4030_set_bias_level; codec->dai = &twl4030_dai; codec->num_dai = 1; codec->reg_cache_size = sizeof(twl4030_reg); codec->reg_cache = kmemdup(twl4030_reg, sizeof(twl4030_reg), GFP_KERNEL); if (codec->reg_cache == NULL) return -ENOMEM; /* register pcms */ ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); if (ret < 0) { printk(KERN_ERR "twl4030: failed to create pcms\n"); goto pcm_err; } twl4030_init_chip(codec); /* power on device */ twl4030_set_bias_level(codec, SND_SOC_BIAS_STANDBY); snd_soc_add_controls(codec, twl4030_snd_controls, ARRAY_SIZE(twl4030_snd_controls)); twl4030_add_widgets(codec); ret = snd_soc_init_card(socdev); if (ret < 0) { printk(KERN_ERR "twl4030: failed to register card\n"); goto card_err; } return ret; card_err: snd_soc_free_pcms(socdev); snd_soc_dapm_free(socdev); pcm_err: kfree(codec->reg_cache); return ret; } static struct snd_soc_device *twl4030_socdev; static int twl4030_probe(struct platform_device *pdev) { struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct snd_soc_codec *codec; codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); if (codec == NULL) return -ENOMEM; socdev->card->codec = codec; mutex_init(&codec->mutex); INIT_LIST_HEAD(&codec->dapm_widgets); INIT_LIST_HEAD(&codec->dapm_paths); twl4030_socdev = socdev; twl4030_init(socdev); return 0; } static int twl4030_remove(struct platform_device *pdev) { struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct snd_soc_codec *codec = socdev->card->codec; printk(KERN_INFO "TWL4030 Audio Codec remove\n"); snd_soc_free_pcms(socdev); snd_soc_dapm_free(socdev); kfree(codec); return 0; } struct snd_soc_codec_device soc_codec_dev_twl4030 = { .probe = twl4030_probe, .remove = twl4030_remove, .suspend = twl4030_suspend, .resume = twl4030_resume, }; EXPORT_SYMBOL_GPL(soc_codec_dev_twl4030); static int __init twl4030_modinit(void) { return snd_soc_register_dai(&twl4030_dai); } module_init(twl4030_modinit); static void __exit twl4030_exit(void) { snd_soc_unregister_dai(&twl4030_dai); } module_exit(twl4030_exit); MODULE_DESCRIPTION("ASoC TWL4030 codec driver"); MODULE_AUTHOR("Steve Sakoman"); MODULE_LICENSE("GPL");