/* * ALSA SoC TWL6040 codec driver * * Author: Misael Lopez Cruz * * 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 #include #include "twl6040.h" #define TWL6040_RATES (SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) #define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE) /* codec private data */ struct twl6040_data { struct snd_soc_codec codec; int audpwron; int naudint; int codec_powered; int pll; int non_lp; unsigned int sysclk; struct snd_pcm_hw_constraint_list *sysclk_constraints; struct completion ready; }; /* * twl6040 register cache & default register settings */ static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = { 0x00, /* not used 0x00 */ 0x4B, /* TWL6040_ASICID (ro) 0x01 */ 0x00, /* TWL6040_ASICREV (ro) 0x02 */ 0x00, /* TWL6040_INTID 0x03 */ 0x00, /* TWL6040_INTMR 0x04 */ 0x00, /* TWL6040_NCPCTRL 0x05 */ 0x00, /* TWL6040_LDOCTL 0x06 */ 0x60, /* TWL6040_HPPLLCTL 0x07 */ 0x00, /* TWL6040_LPPLLCTL 0x08 */ 0x4A, /* TWL6040_LPPLLDIV 0x09 */ 0x00, /* TWL6040_AMICBCTL 0x0A */ 0x00, /* TWL6040_DMICBCTL 0x0B */ 0x18, /* TWL6040_MICLCTL 0x0C - No input selected on Left Mic */ 0x18, /* TWL6040_MICRCTL 0x0D - No input selected on Right Mic */ 0x00, /* TWL6040_MICGAIN 0x0E */ 0x1B, /* TWL6040_LINEGAIN 0x0F */ 0x00, /* TWL6040_HSLCTL 0x10 */ 0x00, /* TWL6040_HSRCTL 0x11 */ 0x00, /* TWL6040_HSGAIN 0x12 */ 0x00, /* TWL6040_EARCTL 0x13 */ 0x00, /* TWL6040_HFLCTL 0x14 */ 0x00, /* TWL6040_HFLGAIN 0x15 */ 0x00, /* TWL6040_HFRCTL 0x16 */ 0x00, /* TWL6040_HFRGAIN 0x17 */ 0x00, /* TWL6040_VIBCTLL 0x18 */ 0x00, /* TWL6040_VIBDATL 0x19 */ 0x00, /* TWL6040_VIBCTLR 0x1A */ 0x00, /* TWL6040_VIBDATR 0x1B */ 0x00, /* TWL6040_HKCTL1 0x1C */ 0x00, /* TWL6040_HKCTL2 0x1D */ 0x00, /* TWL6040_GPOCTL 0x1E */ 0x00, /* TWL6040_ALB 0x1F */ 0x00, /* TWL6040_DLB 0x20 */ 0x00, /* not used 0x21 */ 0x00, /* not used 0x22 */ 0x00, /* not used 0x23 */ 0x00, /* not used 0x24 */ 0x00, /* not used 0x25 */ 0x00, /* not used 0x26 */ 0x00, /* not used 0x27 */ 0x00, /* TWL6040_TRIM1 0x28 */ 0x00, /* TWL6040_TRIM2 0x29 */ 0x00, /* TWL6040_TRIM3 0x2A */ 0x00, /* TWL6040_HSOTRIM 0x2B */ 0x00, /* TWL6040_HFOTRIM 0x2C */ 0x09, /* TWL6040_ACCCTL 0x2D */ 0x00, /* TWL6040_STATUS (ro) 0x2E */ }; /* * twl6040 vio/gnd registers: * registers under vio/gnd supply can be accessed * before the power-up sequence, after NRESPWRON goes high */ static const int twl6040_vio_reg[TWL6040_VIOREGNUM] = { TWL6040_REG_ASICID, TWL6040_REG_ASICREV, TWL6040_REG_INTID, TWL6040_REG_INTMR, TWL6040_REG_NCPCTL, TWL6040_REG_LDOCTL, TWL6040_REG_AMICBCTL, TWL6040_REG_DMICBCTL, TWL6040_REG_HKCTL1, TWL6040_REG_HKCTL2, TWL6040_REG_GPOCTL, TWL6040_REG_TRIM1, TWL6040_REG_TRIM2, TWL6040_REG_TRIM3, TWL6040_REG_HSOTRIM, TWL6040_REG_HFOTRIM, TWL6040_REG_ACCCTL, TWL6040_REG_STATUS, }; /* * twl6040 vdd/vss registers: * registers under vdd/vss supplies can only be accessed * after the power-up sequence */ static const int twl6040_vdd_reg[TWL6040_VDDREGNUM] = { TWL6040_REG_HPPLLCTL, TWL6040_REG_LPPLLCTL, TWL6040_REG_LPPLLDIV, TWL6040_REG_MICLCTL, TWL6040_REG_MICRCTL, TWL6040_REG_MICGAIN, TWL6040_REG_LINEGAIN, TWL6040_REG_HSLCTL, TWL6040_REG_HSRCTL, TWL6040_REG_HSGAIN, TWL6040_REG_EARCTL, TWL6040_REG_HFLCTL, TWL6040_REG_HFLGAIN, TWL6040_REG_HFRCTL, TWL6040_REG_HFRGAIN, TWL6040_REG_VIBCTLL, TWL6040_REG_VIBDATL, TWL6040_REG_VIBCTLR, TWL6040_REG_VIBDATR, TWL6040_REG_ALB, TWL6040_REG_DLB, }; /* * read twl6040 register cache */ static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec, unsigned int reg) { u8 *cache = codec->reg_cache; if (reg >= TWL6040_CACHEREGNUM) return -EIO; return cache[reg]; } /* * write twl6040 register cache */ static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec, u8 reg, u8 value) { u8 *cache = codec->reg_cache; if (reg >= TWL6040_CACHEREGNUM) return; cache[reg] = value; } /* * read from twl6040 hardware register */ static int twl6040_read_reg_volatile(struct snd_soc_codec *codec, unsigned int reg) { u8 value; if (reg >= TWL6040_CACHEREGNUM) return -EIO; twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &value, reg); twl6040_write_reg_cache(codec, reg, value); return value; } /* * write to the twl6040 register space */ static int twl6040_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int value) { if (reg >= TWL6040_CACHEREGNUM) return -EIO; twl6040_write_reg_cache(codec, reg, value); return twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg); } static void twl6040_init_vio_regs(struct snd_soc_codec *codec) { u8 *cache = codec->reg_cache; int reg, i; /* allow registers to be accessed by i2c */ twl6040_write(codec, TWL6040_REG_ACCCTL, cache[TWL6040_REG_ACCCTL]); for (i = 0; i < TWL6040_VIOREGNUM; i++) { reg = twl6040_vio_reg[i]; /* skip read-only registers (ASICID, ASICREV, STATUS) */ switch (reg) { case TWL6040_REG_ASICID: case TWL6040_REG_ASICREV: case TWL6040_REG_STATUS: continue; default: break; } twl6040_write(codec, reg, cache[reg]); } } static void twl6040_init_vdd_regs(struct snd_soc_codec *codec) { u8 *cache = codec->reg_cache; int reg, i; for (i = 0; i < TWL6040_VDDREGNUM; i++) { reg = twl6040_vdd_reg[i]; twl6040_write(codec, reg, cache[reg]); } } /* twl6040 codec manual power-up sequence */ static void twl6040_power_up(struct snd_soc_codec *codec) { u8 ncpctl, ldoctl, lppllctl, accctl; ncpctl = twl6040_read_reg_cache(codec, TWL6040_REG_NCPCTL); ldoctl = twl6040_read_reg_cache(codec, TWL6040_REG_LDOCTL); lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL); accctl = twl6040_read_reg_cache(codec, TWL6040_REG_ACCCTL); /* enable reference system */ ldoctl |= TWL6040_REFENA; twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl); msleep(10); /* enable internal oscillator */ ldoctl |= TWL6040_OSCENA; twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl); udelay(10); /* enable high-side ldo */ ldoctl |= TWL6040_HSLDOENA; twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl); udelay(244); /* enable negative charge pump */ ncpctl |= TWL6040_NCPENA | TWL6040_NCPOPEN; twl6040_write(codec, TWL6040_REG_NCPCTL, ncpctl); udelay(488); /* enable low-side ldo */ ldoctl |= TWL6040_LSLDOENA; twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl); udelay(244); /* enable low-power pll */ lppllctl |= TWL6040_LPLLENA; twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl); /* reset state machine */ accctl |= TWL6040_RESETSPLIT; twl6040_write(codec, TWL6040_REG_ACCCTL, accctl); mdelay(5); accctl &= ~TWL6040_RESETSPLIT; twl6040_write(codec, TWL6040_REG_ACCCTL, accctl); /* disable internal oscillator */ ldoctl &= ~TWL6040_OSCENA; twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl); } /* twl6040 codec manual power-down sequence */ static void twl6040_power_down(struct snd_soc_codec *codec) { u8 ncpctl, ldoctl, lppllctl, accctl; ncpctl = twl6040_read_reg_cache(codec, TWL6040_REG_NCPCTL); ldoctl = twl6040_read_reg_cache(codec, TWL6040_REG_LDOCTL); lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL); accctl = twl6040_read_reg_cache(codec, TWL6040_REG_ACCCTL); /* enable internal oscillator */ ldoctl |= TWL6040_OSCENA; twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl); udelay(10); /* disable low-power pll */ lppllctl &= ~TWL6040_LPLLENA; twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl); /* disable low-side ldo */ ldoctl &= ~TWL6040_LSLDOENA; twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl); udelay(244); /* disable negative charge pump */ ncpctl &= ~(TWL6040_NCPENA | TWL6040_NCPOPEN); twl6040_write(codec, TWL6040_REG_NCPCTL, ncpctl); udelay(488); /* disable high-side ldo */ ldoctl &= ~TWL6040_HSLDOENA; twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl); udelay(244); /* disable internal oscillator */ ldoctl &= ~TWL6040_OSCENA; twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl); /* disable reference system */ ldoctl &= ~TWL6040_REFENA; twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl); msleep(10); } /* set headset dac and driver power mode */ static int headset_power_mode(struct snd_soc_codec *codec, int high_perf) { int hslctl, hsrctl; int mask = TWL6040_HSDRVMODEL | TWL6040_HSDACMODEL; hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL); hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL); if (high_perf) { hslctl &= ~mask; hsrctl &= ~mask; } else { hslctl |= mask; hsrctl |= mask; } twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl); twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl); return 0; } static int twl6040_power_mode_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_codec *codec = w->codec; struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); if (SND_SOC_DAPM_EVENT_ON(event)) priv->non_lp++; else priv->non_lp--; return 0; } /* audio interrupt handler */ static irqreturn_t twl6040_naudint_handler(int irq, void *data) { struct snd_soc_codec *codec = data; struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); u8 intid; twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &intid, TWL6040_REG_INTID); switch (intid) { case TWL6040_THINT: dev_alert(codec->dev, "die temp over-limit detection\n"); break; case TWL6040_PLUGINT: case TWL6040_UNPLUGINT: case TWL6040_HOOKINT: break; case TWL6040_HFINT: dev_alert(codec->dev, "hf drivers over current detection\n"); break; case TWL6040_VIBINT: dev_alert(codec->dev, "vib drivers over current detection\n"); break; case TWL6040_READYINT: complete(&priv->ready); break; default: dev_err(codec->dev, "unknown audio interrupt %d\n", intid); break; } return IRQ_HANDLED; } /* * MICATT volume control: * from -6 to 0 dB in 6 dB steps */ static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0); /* * MICGAIN volume control: * from 6 to 30 dB in 6 dB steps */ static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0); /* * HSGAIN volume control: * from -30 to 0 dB in 2 dB steps */ static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0); /* * HFGAIN volume control: * from -52 to 6 dB in 2 dB steps */ static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0); /* * EPGAIN volume control: * from -24 to 6 dB in 2 dB steps */ static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0); /* Left analog microphone selection */ static const char *twl6040_amicl_texts[] = {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"}; /* Right analog microphone selection */ static const char *twl6040_amicr_texts[] = {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"}; static const struct soc_enum twl6040_enum[] = { SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3, 3, twl6040_amicl_texts), SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 3, twl6040_amicr_texts), }; static const struct snd_kcontrol_new amicl_control = SOC_DAPM_ENUM("Route", twl6040_enum[0]); static const struct snd_kcontrol_new amicr_control = SOC_DAPM_ENUM("Route", twl6040_enum[1]); /* Headset DAC playback switches */ static const struct snd_kcontrol_new hsdacl_switch_controls = SOC_DAPM_SINGLE("Switch", TWL6040_REG_HSLCTL, 5, 1, 0); static const struct snd_kcontrol_new hsdacr_switch_controls = SOC_DAPM_SINGLE("Switch", TWL6040_REG_HSRCTL, 5, 1, 0); /* Handsfree DAC playback switches */ static const struct snd_kcontrol_new hfdacl_switch_controls = SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 2, 1, 0); static const struct snd_kcontrol_new hfdacr_switch_controls = SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 2, 1, 0); /* Headset driver switches */ static const struct snd_kcontrol_new hsl_driver_switch_controls = SOC_DAPM_SINGLE("Switch", TWL6040_REG_HSLCTL, 2, 1, 0); static const struct snd_kcontrol_new hsr_driver_switch_controls = SOC_DAPM_SINGLE("Switch", TWL6040_REG_HSRCTL, 2, 1, 0); /* Handsfree driver switches */ static const struct snd_kcontrol_new hfl_driver_switch_controls = SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 4, 1, 0); static const struct snd_kcontrol_new hfr_driver_switch_controls = SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 4, 1, 0); static const struct snd_kcontrol_new ep_driver_switch_controls = SOC_DAPM_SINGLE("Switch", TWL6040_REG_EARCTL, 0, 1, 0); static const struct snd_kcontrol_new twl6040_snd_controls[] = { /* Capture gains */ SOC_DOUBLE_TLV("Capture Preamplifier Volume", TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv), SOC_DOUBLE_TLV("Capture Volume", TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv), /* Playback gains */ SOC_DOUBLE_TLV("Headset Playback Volume", TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv), SOC_DOUBLE_R_TLV("Handsfree Playback Volume", TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv), SOC_SINGLE_TLV("Earphone Playback Volume", TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv), }; static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = { /* Inputs */ SND_SOC_DAPM_INPUT("MAINMIC"), SND_SOC_DAPM_INPUT("HSMIC"), SND_SOC_DAPM_INPUT("SUBMIC"), SND_SOC_DAPM_INPUT("AFML"), SND_SOC_DAPM_INPUT("AFMR"), /* Outputs */ SND_SOC_DAPM_OUTPUT("HSOL"), SND_SOC_DAPM_OUTPUT("HSOR"), SND_SOC_DAPM_OUTPUT("HFL"), SND_SOC_DAPM_OUTPUT("HFR"), SND_SOC_DAPM_OUTPUT("EP"), /* Analog input muxes for the capture amplifiers */ SND_SOC_DAPM_MUX("Analog Left Capture Route", SND_SOC_NOPM, 0, 0, &amicl_control), SND_SOC_DAPM_MUX("Analog Right Capture Route", SND_SOC_NOPM, 0, 0, &amicr_control), /* Analog capture PGAs */ SND_SOC_DAPM_PGA("MicAmpL", TWL6040_REG_MICLCTL, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("MicAmpR", TWL6040_REG_MICRCTL, 0, 0, NULL, 0), /* ADCs */ SND_SOC_DAPM_ADC("ADC Left", "Left Front Capture", TWL6040_REG_MICLCTL, 2, 0), SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture", TWL6040_REG_MICRCTL, 2, 0), /* Microphone bias */ SND_SOC_DAPM_MICBIAS("Headset Mic Bias", TWL6040_REG_AMICBCTL, 0, 0), SND_SOC_DAPM_MICBIAS("Main Mic Bias", TWL6040_REG_AMICBCTL, 4, 0), SND_SOC_DAPM_MICBIAS("Digital Mic1 Bias", TWL6040_REG_DMICBCTL, 0, 0), SND_SOC_DAPM_MICBIAS("Digital Mic2 Bias", TWL6040_REG_DMICBCTL, 4, 0), /* DACs */ SND_SOC_DAPM_DAC("HSDAC Left", "Headset Playback", TWL6040_REG_HSLCTL, 0, 0), SND_SOC_DAPM_DAC("HSDAC Right", "Headset Playback", TWL6040_REG_HSRCTL, 0, 0), SND_SOC_DAPM_DAC_E("HFDAC Left", "Handsfree Playback", TWL6040_REG_HFLCTL, 0, 0, twl6040_power_mode_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_DAC_E("HFDAC Right", "Handsfree Playback", TWL6040_REG_HFRCTL, 0, 0, twl6040_power_mode_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), /* Analog playback switches */ SND_SOC_DAPM_SWITCH("HSDAC Left Playback", SND_SOC_NOPM, 0, 0, &hsdacl_switch_controls), SND_SOC_DAPM_SWITCH("HSDAC Right Playback", SND_SOC_NOPM, 0, 0, &hsdacr_switch_controls), SND_SOC_DAPM_SWITCH("HFDAC Left Playback", SND_SOC_NOPM, 0, 0, &hfdacl_switch_controls), SND_SOC_DAPM_SWITCH("HFDAC Right Playback", SND_SOC_NOPM, 0, 0, &hfdacr_switch_controls), SND_SOC_DAPM_SWITCH("Headset Left Driver", SND_SOC_NOPM, 0, 0, &hsl_driver_switch_controls), SND_SOC_DAPM_SWITCH("Headset Right Driver", SND_SOC_NOPM, 0, 0, &hsr_driver_switch_controls), SND_SOC_DAPM_SWITCH_E("Handsfree Left Driver", SND_SOC_NOPM, 0, 0, &hfl_driver_switch_controls, twl6040_power_mode_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_SWITCH_E("Handsfree Right Driver", SND_SOC_NOPM, 0, 0, &hfr_driver_switch_controls, twl6040_power_mode_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_SWITCH_E("Earphone Driver", SND_SOC_NOPM, 0, 0, &ep_driver_switch_controls, twl6040_power_mode_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), /* Analog playback PGAs */ SND_SOC_DAPM_PGA("HFDAC Left PGA", TWL6040_REG_HFLCTL, 1, 0, NULL, 0), SND_SOC_DAPM_PGA("HFDAC Right PGA", TWL6040_REG_HFRCTL, 1, 0, NULL, 0), }; static const struct snd_soc_dapm_route intercon[] = { /* Capture path */ {"Analog Left Capture Route", "Headset Mic", "HSMIC"}, {"Analog Left Capture Route", "Main Mic", "MAINMIC"}, {"Analog Left Capture Route", "Aux/FM Left", "AFML"}, {"Analog Right Capture Route", "Headset Mic", "HSMIC"}, {"Analog Right Capture Route", "Sub Mic", "SUBMIC"}, {"Analog Right Capture Route", "Aux/FM Right", "AFMR"}, {"MicAmpL", NULL, "Analog Left Capture Route"}, {"MicAmpR", NULL, "Analog Right Capture Route"}, {"ADC Left", NULL, "MicAmpL"}, {"ADC Right", NULL, "MicAmpR"}, /* Headset playback path */ {"HSDAC Left Playback", "Switch", "HSDAC Left"}, {"HSDAC Right Playback", "Switch", "HSDAC Right"}, {"Headset Left Driver", "Switch", "HSDAC Left Playback"}, {"Headset Right Driver", "Switch", "HSDAC Right Playback"}, {"HSOL", NULL, "Headset Left Driver"}, {"HSOR", NULL, "Headset Right Driver"}, /* Earphone playback path */ {"Earphone Driver", "Switch", "HSDAC Left"}, {"EP", NULL, "Earphone Driver"}, /* Handsfree playback path */ {"HFDAC Left Playback", "Switch", "HFDAC Left"}, {"HFDAC Right Playback", "Switch", "HFDAC Right"}, {"HFDAC Left PGA", NULL, "HFDAC Left Playback"}, {"HFDAC Right PGA", NULL, "HFDAC Right Playback"}, {"Handsfree Left Driver", "Switch", "HFDAC Left PGA"}, {"Handsfree Right Driver", "Switch", "HFDAC Right PGA"}, {"HFL", NULL, "Handsfree Left Driver"}, {"HFR", NULL, "Handsfree Right Driver"}, }; static int twl6040_add_widgets(struct snd_soc_codec *codec) { snd_soc_dapm_new_controls(codec, twl6040_dapm_widgets, ARRAY_SIZE(twl6040_dapm_widgets)); snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon)); snd_soc_dapm_new_widgets(codec); return 0; } static int twl6040_power_up_completion(struct snd_soc_codec *codec, int naudint) { struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); int time_left; u8 intid; time_left = wait_for_completion_timeout(&priv->ready, msecs_to_jiffies(48)); if (!time_left) { twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &intid, TWL6040_REG_INTID); if (!(intid & TWL6040_READYINT)) { dev_err(codec->dev, "timeout waiting for READYINT\n"); return -ETIMEDOUT; } } priv->codec_powered = 1; return 0; } static int twl6040_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); int audpwron = priv->audpwron; int naudint = priv->naudint; int ret; switch (level) { case SND_SOC_BIAS_ON: break; case SND_SOC_BIAS_PREPARE: break; case SND_SOC_BIAS_STANDBY: if (priv->codec_powered) break; if (gpio_is_valid(audpwron)) { /* use AUDPWRON line */ gpio_set_value(audpwron, 1); /* wait for power-up completion */ ret = twl6040_power_up_completion(codec, naudint); if (ret) return ret; /* sync registers updated during power-up sequence */ twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL); twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL); twl6040_read_reg_volatile(codec, TWL6040_REG_LPPLLCTL); } else { /* use manual power-up sequence */ twl6040_power_up(codec); priv->codec_powered = 1; } /* initialize vdd/vss registers with reg_cache */ twl6040_init_vdd_regs(codec); break; case SND_SOC_BIAS_OFF: if (!priv->codec_powered) break; if (gpio_is_valid(audpwron)) { /* use AUDPWRON line */ gpio_set_value(audpwron, 0); /* power-down sequence latency */ udelay(500); /* sync registers updated during power-down sequence */ twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL); twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL); twl6040_write_reg_cache(codec, TWL6040_REG_LPPLLCTL, 0x00); } else { /* use manual power-down sequence */ twl6040_power_down(codec); } priv->codec_powered = 0; break; } codec->bias_level = level; return 0; } /* set of rates for each pll: low-power and high-performance */ static unsigned int lp_rates[] = { 88200, 96000, }; static struct snd_pcm_hw_constraint_list lp_constraints = { .count = ARRAY_SIZE(lp_rates), .list = lp_rates, }; static unsigned int hp_rates[] = { 96000, }; static struct snd_pcm_hw_constraint_list hp_constraints = { .count = ARRAY_SIZE(hp_rates), .list = hp_rates, }; static int twl6040_startup(struct snd_pcm_substream *substream, 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; struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); if (!priv->sysclk) { dev_err(codec->dev, "no mclk configured, call set_sysclk() on init\n"); return -EINVAL; } /* * capture is not supported at 17.64 MHz, * it's reserved for headset low-power playback scenario */ if ((priv->sysclk == 17640000) && substream->stream) { dev_err(codec->dev, "capture mode is not supported at %dHz\n", priv->sysclk); return -EINVAL; } snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_RATE, priv->sysclk_constraints); return 0; } static int twl6040_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; struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); u8 lppllctl; int rate; /* nothing to do for high-perf pll, it supports only 48 kHz */ if (priv->pll == TWL6040_HPPLL_ID) return 0; lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL); rate = params_rate(params); switch (rate) { case 88200: lppllctl |= TWL6040_LPLLFIN; priv->sysclk = 17640000; break; case 96000: lppllctl &= ~TWL6040_LPLLFIN; priv->sysclk = 19200000; break; default: dev_err(codec->dev, "unsupported rate %d\n", rate); return -EINVAL; } twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl); return 0; } static int twl6040_trigger(struct snd_pcm_substream *substream, int cmd, 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; struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: /* * low-power playback mode is restricted * for headset path only */ if ((priv->sysclk == 17640000) && priv->non_lp) { dev_err(codec->dev, "some enabled paths aren't supported at %dHz\n", priv->sysclk); return -EPERM; } break; default: break; } return 0; } static int twl6040_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; struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); u8 hppllctl, lppllctl; hppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_HPPLLCTL); lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL); switch (clk_id) { case TWL6040_SYSCLK_SEL_LPPLL: switch (freq) { case 32768: /* headset dac and driver must be in low-power mode */ headset_power_mode(codec, 0); /* clk32k input requires low-power pll */ lppllctl |= TWL6040_LPLLENA; twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl); mdelay(5); lppllctl &= ~TWL6040_HPLLSEL; twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl); hppllctl &= ~TWL6040_HPLLENA; twl6040_write(codec, TWL6040_REG_HPPLLCTL, hppllctl); break; default: dev_err(codec->dev, "unknown mclk freq %d\n", freq); return -EINVAL; } /* lppll divider */ switch (priv->sysclk) { case 17640000: lppllctl |= TWL6040_LPLLFIN; break; case 19200000: lppllctl &= ~TWL6040_LPLLFIN; break; default: /* sysclk not yet configured */ lppllctl &= ~TWL6040_LPLLFIN; priv->sysclk = 19200000; break; } twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl); priv->pll = TWL6040_LPPLL_ID; priv->sysclk_constraints = &lp_constraints; break; case TWL6040_SYSCLK_SEL_HPPLL: hppllctl &= ~TWL6040_MCLK_MSK; switch (freq) { case 12000000: /* mclk input, pll enabled */ hppllctl |= TWL6040_MCLK_12000KHZ | TWL6040_HPLLSQRBP | TWL6040_HPLLENA; break; case 19200000: /* mclk input, pll disabled */ hppllctl |= TWL6040_MCLK_19200KHZ | TWL6040_HPLLSQRBP | TWL6040_HPLLBP; break; case 26000000: /* mclk input, pll enabled */ hppllctl |= TWL6040_MCLK_26000KHZ | TWL6040_HPLLSQRBP | TWL6040_HPLLENA; break; case 38400000: /* clk slicer, pll disabled */ hppllctl |= TWL6040_MCLK_38400KHZ | TWL6040_HPLLSQRENA | TWL6040_HPLLBP; break; default: dev_err(codec->dev, "unknown mclk freq %d\n", freq); return -EINVAL; } /* headset dac and driver must be in high-performance mode */ headset_power_mode(codec, 1); twl6040_write(codec, TWL6040_REG_HPPLLCTL, hppllctl); udelay(500); lppllctl |= TWL6040_HPLLSEL; twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl); lppllctl &= ~TWL6040_LPLLENA; twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl); /* high-performance pll can provide only 19.2 MHz */ priv->pll = TWL6040_HPPLL_ID; priv->sysclk = 19200000; priv->sysclk_constraints = &hp_constraints; break; default: dev_err(codec->dev, "unknown clk_id %d\n", clk_id); return -EINVAL; } return 0; } static struct snd_soc_dai_ops twl6040_dai_ops = { .startup = twl6040_startup, .hw_params = twl6040_hw_params, .trigger = twl6040_trigger, .set_sysclk = twl6040_set_dai_sysclk, }; struct snd_soc_dai twl6040_dai = { .name = "twl6040", .playback = { .stream_name = "Playback", .channels_min = 1, .channels_max = 4, .rates = TWL6040_RATES, .formats = TWL6040_FORMATS, }, .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, .rates = TWL6040_RATES, .formats = TWL6040_FORMATS, }, .ops = &twl6040_dai_ops, }; EXPORT_SYMBOL_GPL(twl6040_dai); #ifdef CONFIG_PM static int twl6040_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; twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } static int twl6040_resume(struct platform_device *pdev) { struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct snd_soc_codec *codec = socdev->card->codec; twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY); return 0; } #else #define twl6040_suspend NULL #define twl6040_resume NULL #endif static struct snd_soc_codec *twl6040_codec; static int twl6040_probe(struct platform_device *pdev) { struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct snd_soc_codec *codec; int ret = 0; BUG_ON(!twl6040_codec); codec = twl6040_codec; socdev->card->codec = codec; /* register pcms */ ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); if (ret < 0) { dev_err(&pdev->dev, "failed to create pcms\n"); return ret; } snd_soc_add_controls(codec, twl6040_snd_controls, ARRAY_SIZE(twl6040_snd_controls)); twl6040_add_widgets(codec); if (ret < 0) { dev_err(&pdev->dev, "failed to register card\n"); goto card_err; } return ret; card_err: snd_soc_free_pcms(socdev); snd_soc_dapm_free(socdev); return ret; } static int twl6040_remove(struct platform_device *pdev) { struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct snd_soc_codec *codec = socdev->card->codec; twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF); snd_soc_free_pcms(socdev); snd_soc_dapm_free(socdev); kfree(codec); return 0; } struct snd_soc_codec_device soc_codec_dev_twl6040 = { .probe = twl6040_probe, .remove = twl6040_remove, .suspend = twl6040_suspend, .resume = twl6040_resume, }; EXPORT_SYMBOL_GPL(soc_codec_dev_twl6040); static int __devinit twl6040_codec_probe(struct platform_device *pdev) { struct twl4030_codec_data *twl_codec = pdev->dev.platform_data; struct snd_soc_codec *codec; struct twl6040_data *priv; int audpwron, naudint; int ret = 0; priv = kzalloc(sizeof(struct twl6040_data), GFP_KERNEL); if (priv == NULL) return -ENOMEM; if (twl_codec) { audpwron = twl_codec->audpwron_gpio; naudint = twl_codec->naudint_irq; } else { audpwron = -EINVAL; naudint = 0; } priv->audpwron = audpwron; priv->naudint = naudint; codec = &priv->codec; codec->dev = &pdev->dev; twl6040_dai.dev = &pdev->dev; codec->name = "twl6040"; codec->owner = THIS_MODULE; codec->read = twl6040_read_reg_cache; codec->write = twl6040_write; codec->set_bias_level = twl6040_set_bias_level; snd_soc_codec_set_drvdata(codec, priv); codec->dai = &twl6040_dai; codec->num_dai = 1; codec->reg_cache_size = ARRAY_SIZE(twl6040_reg); codec->reg_cache = kmemdup(twl6040_reg, sizeof(twl6040_reg), GFP_KERNEL); if (codec->reg_cache == NULL) { ret = -ENOMEM; goto cache_err; } mutex_init(&codec->mutex); INIT_LIST_HEAD(&codec->dapm_widgets); INIT_LIST_HEAD(&codec->dapm_paths); init_completion(&priv->ready); if (gpio_is_valid(audpwron)) { ret = gpio_request(audpwron, "audpwron"); if (ret) goto gpio1_err; ret = gpio_direction_output(audpwron, 0); if (ret) goto gpio2_err; priv->codec_powered = 0; } if (naudint) { /* audio interrupt */ ret = request_threaded_irq(naudint, NULL, twl6040_naudint_handler, IRQF_TRIGGER_LOW | IRQF_ONESHOT, "twl6040_codec", codec); if (ret) goto gpio2_err; } else { if (gpio_is_valid(audpwron)) { /* enable only codec ready interrupt */ twl6040_write_reg_cache(codec, TWL6040_REG_INTMR, ~TWL6040_READYMSK & TWL6040_ALLINT_MSK); } else { /* no interrupts at all */ twl6040_write_reg_cache(codec, TWL6040_REG_INTMR, TWL6040_ALLINT_MSK); } } /* init vio registers */ twl6040_init_vio_regs(codec); /* power on device */ ret = twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY); if (ret) goto irq_err; ret = snd_soc_register_codec(codec); if (ret) goto reg_err; twl6040_codec = codec; ret = snd_soc_register_dai(&twl6040_dai); if (ret) goto dai_err; return 0; dai_err: snd_soc_unregister_codec(codec); twl6040_codec = NULL; reg_err: twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF); irq_err: if (naudint) free_irq(naudint, codec); gpio2_err: if (gpio_is_valid(audpwron)) gpio_free(audpwron); gpio1_err: kfree(codec->reg_cache); cache_err: kfree(priv); return ret; } static int __devexit twl6040_codec_remove(struct platform_device *pdev) { struct twl6040_data *priv = snd_soc_codec_get_drvdata(twl6040_codec); int audpwron = priv->audpwron; int naudint = priv->naudint; if (gpio_is_valid(audpwron)) gpio_free(audpwron); if (naudint) free_irq(naudint, twl6040_codec); snd_soc_unregister_dai(&twl6040_dai); snd_soc_unregister_codec(twl6040_codec); kfree(twl6040_codec); twl6040_codec = NULL; return 0; } static struct platform_driver twl6040_codec_driver = { .driver = { .name = "twl6040_codec", .owner = THIS_MODULE, }, .probe = twl6040_codec_probe, .remove = __devexit_p(twl6040_codec_remove), }; static int __init twl6040_codec_init(void) { return platform_driver_register(&twl6040_codec_driver); } module_init(twl6040_codec_init); static void __exit twl6040_codec_exit(void) { platform_driver_unregister(&twl6040_codec_driver); } module_exit(twl6040_codec_exit); MODULE_DESCRIPTION("ASoC TWL6040 codec driver"); MODULE_AUTHOR("Misael Lopez Cruz"); MODULE_LICENSE("GPL");