/* * wm8350.c -- WM8350 ALSA SoC audio driver * * Copyright (C) 2007, 2008 Wolfson Microelectronics PLC. * * Author: Liam Girdwood * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "wm8350.h" #define WM8350_OUTn_0dB 0x39 #define WM8350_RAMP_NONE 0 #define WM8350_RAMP_UP 1 #define WM8350_RAMP_DOWN 2 /* We only include the analogue supplies here; the digital supplies * need to be available well before this driver can be probed. */ static const char *supply_names[] = { "AVDD", "HPVDD", }; struct wm8350_output { u16 active; u16 left_vol; u16 right_vol; u16 ramp; u16 mute; }; struct wm8350_jack_data { struct snd_soc_jack *jack; int report; int short_report; }; struct wm8350_data { struct snd_soc_codec codec; struct wm8350_output out1; struct wm8350_output out2; struct wm8350_jack_data hpl; struct wm8350_jack_data hpr; struct wm8350_jack_data mic; struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)]; int fll_freq_out; int fll_freq_in; }; static unsigned int wm8350_codec_cache_read(struct snd_soc_codec *codec, unsigned int reg) { struct wm8350 *wm8350 = codec->control_data; return wm8350->reg_cache[reg]; } static unsigned int wm8350_codec_read(struct snd_soc_codec *codec, unsigned int reg) { struct wm8350 *wm8350 = codec->control_data; return wm8350_reg_read(wm8350, reg); } static int wm8350_codec_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int value) { struct wm8350 *wm8350 = codec->control_data; return wm8350_reg_write(wm8350, reg, value); } /* * Ramp OUT1 PGA volume to minimise pops at stream startup and shutdown. */ static inline int wm8350_out1_ramp_step(struct snd_soc_codec *codec) { struct wm8350_data *wm8350_data = codec->private_data; struct wm8350_output *out1 = &wm8350_data->out1; struct wm8350 *wm8350 = codec->control_data; int left_complete = 0, right_complete = 0; u16 reg, val; /* left channel */ reg = wm8350_reg_read(wm8350, WM8350_LOUT1_VOLUME); val = (reg & WM8350_OUT1L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT; if (out1->ramp == WM8350_RAMP_UP) { /* ramp step up */ if (val < out1->left_vol) { val++; reg &= ~WM8350_OUT1L_VOL_MASK; wm8350_reg_write(wm8350, WM8350_LOUT1_VOLUME, reg | (val << WM8350_OUT1L_VOL_SHIFT)); } else left_complete = 1; } else if (out1->ramp == WM8350_RAMP_DOWN) { /* ramp step down */ if (val > 0) { val--; reg &= ~WM8350_OUT1L_VOL_MASK; wm8350_reg_write(wm8350, WM8350_LOUT1_VOLUME, reg | (val << WM8350_OUT1L_VOL_SHIFT)); } else left_complete = 1; } else return 1; /* right channel */ reg = wm8350_reg_read(wm8350, WM8350_ROUT1_VOLUME); val = (reg & WM8350_OUT1R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT; if (out1->ramp == WM8350_RAMP_UP) { /* ramp step up */ if (val < out1->right_vol) { val++; reg &= ~WM8350_OUT1R_VOL_MASK; wm8350_reg_write(wm8350, WM8350_ROUT1_VOLUME, reg | (val << WM8350_OUT1R_VOL_SHIFT)); } else right_complete = 1; } else if (out1->ramp == WM8350_RAMP_DOWN) { /* ramp step down */ if (val > 0) { val--; reg &= ~WM8350_OUT1R_VOL_MASK; wm8350_reg_write(wm8350, WM8350_ROUT1_VOLUME, reg | (val << WM8350_OUT1R_VOL_SHIFT)); } else right_complete = 1; } /* only hit the update bit if either volume has changed this step */ if (!left_complete || !right_complete) wm8350_set_bits(wm8350, WM8350_LOUT1_VOLUME, WM8350_OUT1_VU); return left_complete & right_complete; } /* * Ramp OUT2 PGA volume to minimise pops at stream startup and shutdown. */ static inline int wm8350_out2_ramp_step(struct snd_soc_codec *codec) { struct wm8350_data *wm8350_data = codec->private_data; struct wm8350_output *out2 = &wm8350_data->out2; struct wm8350 *wm8350 = codec->control_data; int left_complete = 0, right_complete = 0; u16 reg, val; /* left channel */ reg = wm8350_reg_read(wm8350, WM8350_LOUT2_VOLUME); val = (reg & WM8350_OUT2L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT; if (out2->ramp == WM8350_RAMP_UP) { /* ramp step up */ if (val < out2->left_vol) { val++; reg &= ~WM8350_OUT2L_VOL_MASK; wm8350_reg_write(wm8350, WM8350_LOUT2_VOLUME, reg | (val << WM8350_OUT1L_VOL_SHIFT)); } else left_complete = 1; } else if (out2->ramp == WM8350_RAMP_DOWN) { /* ramp step down */ if (val > 0) { val--; reg &= ~WM8350_OUT2L_VOL_MASK; wm8350_reg_write(wm8350, WM8350_LOUT2_VOLUME, reg | (val << WM8350_OUT1L_VOL_SHIFT)); } else left_complete = 1; } else return 1; /* right channel */ reg = wm8350_reg_read(wm8350, WM8350_ROUT2_VOLUME); val = (reg & WM8350_OUT2R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT; if (out2->ramp == WM8350_RAMP_UP) { /* ramp step up */ if (val < out2->right_vol) { val++; reg &= ~WM8350_OUT2R_VOL_MASK; wm8350_reg_write(wm8350, WM8350_ROUT2_VOLUME, reg | (val << WM8350_OUT1R_VOL_SHIFT)); } else right_complete = 1; } else if (out2->ramp == WM8350_RAMP_DOWN) { /* ramp step down */ if (val > 0) { val--; reg &= ~WM8350_OUT2R_VOL_MASK; wm8350_reg_write(wm8350, WM8350_ROUT2_VOLUME, reg | (val << WM8350_OUT1R_VOL_SHIFT)); } else right_complete = 1; } /* only hit the update bit if either volume has changed this step */ if (!left_complete || !right_complete) wm8350_set_bits(wm8350, WM8350_LOUT2_VOLUME, WM8350_OUT2_VU); return left_complete & right_complete; } /* * This work ramps both output PGAs at stream start/stop time to * minimise pop associated with DAPM power switching. * It's best to enable Zero Cross when ramping occurs to minimise any * zipper noises. */ static void wm8350_pga_work(struct work_struct *work) { struct snd_soc_codec *codec = container_of(work, struct snd_soc_codec, delayed_work.work); struct wm8350_data *wm8350_data = codec->private_data; struct wm8350_output *out1 = &wm8350_data->out1, *out2 = &wm8350_data->out2; int i, out1_complete, out2_complete; /* do we need to ramp at all ? */ if (out1->ramp == WM8350_RAMP_NONE && out2->ramp == WM8350_RAMP_NONE) return; /* PGA volumes have 6 bits of resolution to ramp */ for (i = 0; i <= 63; i++) { out1_complete = 1, out2_complete = 1; if (out1->ramp != WM8350_RAMP_NONE) out1_complete = wm8350_out1_ramp_step(codec); if (out2->ramp != WM8350_RAMP_NONE) out2_complete = wm8350_out2_ramp_step(codec); /* ramp finished ? */ if (out1_complete && out2_complete) break; /* we need to delay longer on the up ramp */ if (out1->ramp == WM8350_RAMP_UP || out2->ramp == WM8350_RAMP_UP) { /* delay is longer over 0dB as increases are larger */ if (i >= WM8350_OUTn_0dB) schedule_timeout_interruptible(msecs_to_jiffies (2)); else schedule_timeout_interruptible(msecs_to_jiffies (1)); } else udelay(50); /* doesn't matter if we delay longer */ } out1->ramp = WM8350_RAMP_NONE; out2->ramp = WM8350_RAMP_NONE; } /* * WM8350 Controls */ static int pga_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_codec *codec = w->codec; struct wm8350_data *wm8350_data = codec->private_data; struct wm8350_output *out; switch (w->shift) { case 0: case 1: out = &wm8350_data->out1; break; case 2: case 3: out = &wm8350_data->out2; break; default: BUG(); return -1; } switch (event) { case SND_SOC_DAPM_POST_PMU: out->ramp = WM8350_RAMP_UP; out->active = 1; if (!delayed_work_pending(&codec->delayed_work)) schedule_delayed_work(&codec->delayed_work, msecs_to_jiffies(1)); break; case SND_SOC_DAPM_PRE_PMD: out->ramp = WM8350_RAMP_DOWN; out->active = 0; if (!delayed_work_pending(&codec->delayed_work)) schedule_delayed_work(&codec->delayed_work, msecs_to_jiffies(1)); break; } return 0; } static int wm8350_put_volsw_2r_vu(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); struct wm8350_data *wm8350_priv = codec->private_data; struct wm8350_output *out = NULL; struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; int ret; unsigned int reg = mc->reg; u16 val; /* For OUT1 and OUT2 we shadow the values and only actually write * them out when active in order to ensure the amplifier comes on * as quietly as possible. */ switch (reg) { case WM8350_LOUT1_VOLUME: out = &wm8350_priv->out1; break; case WM8350_LOUT2_VOLUME: out = &wm8350_priv->out2; break; default: break; } if (out) { out->left_vol = ucontrol->value.integer.value[0]; out->right_vol = ucontrol->value.integer.value[1]; if (!out->active) return 1; } ret = snd_soc_put_volsw_2r(kcontrol, ucontrol); if (ret < 0) return ret; /* now hit the volume update bits (always bit 8) */ val = wm8350_codec_read(codec, reg); wm8350_codec_write(codec, reg, val | WM8350_OUT1_VU); return 1; } static int wm8350_get_volsw_2r(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); struct wm8350_data *wm8350_priv = codec->private_data; struct wm8350_output *out1 = &wm8350_priv->out1; struct wm8350_output *out2 = &wm8350_priv->out2; struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; unsigned int reg = mc->reg; /* If these are cached registers use the cache */ switch (reg) { case WM8350_LOUT1_VOLUME: ucontrol->value.integer.value[0] = out1->left_vol; ucontrol->value.integer.value[1] = out1->right_vol; return 0; case WM8350_LOUT2_VOLUME: ucontrol->value.integer.value[0] = out2->left_vol; ucontrol->value.integer.value[1] = out2->right_vol; return 0; default: break; } return snd_soc_get_volsw_2r(kcontrol, ucontrol); } /* double control with volume update */ #define SOC_WM8350_DOUBLE_R_TLV(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 | \ SNDRV_CTL_ELEM_ACCESS_VOLATILE, \ .tlv.p = (tlv_array), \ .info = snd_soc_info_volsw_2r, \ .get = wm8350_get_volsw_2r, .put = wm8350_put_volsw_2r_vu, \ .private_value = (unsigned long)&(struct soc_mixer_control) \ {.reg = reg_left, .rreg = reg_right, .shift = xshift, \ .rshift = xshift, .max = xmax, .invert = xinvert}, } static const char *wm8350_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" }; static const char *wm8350_pol[] = { "Normal", "Inv R", "Inv L", "Inv L & R" }; static const char *wm8350_dacmutem[] = { "Normal", "Soft" }; static const char *wm8350_dacmutes[] = { "Fast", "Slow" }; static const char *wm8350_adcfilter[] = { "None", "High Pass" }; static const char *wm8350_adchp[] = { "44.1kHz", "8kHz", "16kHz", "32kHz" }; static const char *wm8350_lr[] = { "Left", "Right" }; static const struct soc_enum wm8350_enum[] = { SOC_ENUM_SINGLE(WM8350_DAC_CONTROL, 4, 4, wm8350_deemp), SOC_ENUM_SINGLE(WM8350_DAC_CONTROL, 0, 4, wm8350_pol), SOC_ENUM_SINGLE(WM8350_DAC_MUTE_VOLUME, 14, 2, wm8350_dacmutem), SOC_ENUM_SINGLE(WM8350_DAC_MUTE_VOLUME, 13, 2, wm8350_dacmutes), SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 15, 2, wm8350_adcfilter), SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 8, 4, wm8350_adchp), SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 0, 4, wm8350_pol), SOC_ENUM_SINGLE(WM8350_INPUT_MIXER_VOLUME, 15, 2, wm8350_lr), }; static DECLARE_TLV_DB_LINEAR(pre_amp_tlv, -1200, 3525); static DECLARE_TLV_DB_LINEAR(out_pga_tlv, -5700, 600); static DECLARE_TLV_DB_SCALE(dac_pcm_tlv, -7163, 36, 1); static DECLARE_TLV_DB_SCALE(adc_pcm_tlv, -12700, 50, 1); static DECLARE_TLV_DB_SCALE(out_mix_tlv, -1500, 300, 1); static const unsigned int capture_sd_tlv[] = { TLV_DB_RANGE_HEAD(2), 0, 12, TLV_DB_SCALE_ITEM(-3600, 300, 1), 13, 15, TLV_DB_SCALE_ITEM(0, 0, 0), }; static const struct snd_kcontrol_new wm8350_snd_controls[] = { SOC_ENUM("Playback Deemphasis", wm8350_enum[0]), SOC_ENUM("Playback DAC Inversion", wm8350_enum[1]), SOC_WM8350_DOUBLE_R_TLV("Playback PCM Volume", WM8350_DAC_DIGITAL_VOLUME_L, WM8350_DAC_DIGITAL_VOLUME_R, 0, 255, 0, dac_pcm_tlv), SOC_ENUM("Playback PCM Mute Function", wm8350_enum[2]), SOC_ENUM("Playback PCM Mute Speed", wm8350_enum[3]), SOC_ENUM("Capture PCM Filter", wm8350_enum[4]), SOC_ENUM("Capture PCM HP Filter", wm8350_enum[5]), SOC_ENUM("Capture ADC Inversion", wm8350_enum[6]), SOC_WM8350_DOUBLE_R_TLV("Capture PCM Volume", WM8350_ADC_DIGITAL_VOLUME_L, WM8350_ADC_DIGITAL_VOLUME_R, 0, 255, 0, adc_pcm_tlv), SOC_DOUBLE_TLV("Capture Sidetone Volume", WM8350_ADC_DIVIDER, 8, 4, 15, 1, capture_sd_tlv), SOC_WM8350_DOUBLE_R_TLV("Capture Volume", WM8350_LEFT_INPUT_VOLUME, WM8350_RIGHT_INPUT_VOLUME, 2, 63, 0, pre_amp_tlv), SOC_DOUBLE_R("Capture ZC Switch", WM8350_LEFT_INPUT_VOLUME, WM8350_RIGHT_INPUT_VOLUME, 13, 1, 0), SOC_SINGLE_TLV("Left Input Left Sidetone Volume", WM8350_OUTPUT_LEFT_MIXER_VOLUME, 1, 7, 0, out_mix_tlv), SOC_SINGLE_TLV("Left Input Right Sidetone Volume", WM8350_OUTPUT_LEFT_MIXER_VOLUME, 5, 7, 0, out_mix_tlv), SOC_SINGLE_TLV("Left Input Bypass Volume", WM8350_OUTPUT_LEFT_MIXER_VOLUME, 9, 7, 0, out_mix_tlv), SOC_SINGLE_TLV("Right Input Left Sidetone Volume", WM8350_OUTPUT_RIGHT_MIXER_VOLUME, 1, 7, 0, out_mix_tlv), SOC_SINGLE_TLV("Right Input Right Sidetone Volume", WM8350_OUTPUT_RIGHT_MIXER_VOLUME, 5, 7, 0, out_mix_tlv), SOC_SINGLE_TLV("Right Input Bypass Volume", WM8350_OUTPUT_RIGHT_MIXER_VOLUME, 13, 7, 0, out_mix_tlv), SOC_SINGLE("Left Input Mixer +20dB Switch", WM8350_INPUT_MIXER_VOLUME_L, 0, 1, 0), SOC_SINGLE("Right Input Mixer +20dB Switch", WM8350_INPUT_MIXER_VOLUME_R, 0, 1, 0), SOC_SINGLE_TLV("Out4 Capture Volume", WM8350_INPUT_MIXER_VOLUME, 1, 7, 0, out_mix_tlv), SOC_WM8350_DOUBLE_R_TLV("Out1 Playback Volume", WM8350_LOUT1_VOLUME, WM8350_ROUT1_VOLUME, 2, 63, 0, out_pga_tlv), SOC_DOUBLE_R("Out1 Playback ZC Switch", WM8350_LOUT1_VOLUME, WM8350_ROUT1_VOLUME, 13, 1, 0), SOC_WM8350_DOUBLE_R_TLV("Out2 Playback Volume", WM8350_LOUT2_VOLUME, WM8350_ROUT2_VOLUME, 2, 63, 0, out_pga_tlv), SOC_DOUBLE_R("Out2 Playback ZC Switch", WM8350_LOUT2_VOLUME, WM8350_ROUT2_VOLUME, 13, 1, 0), SOC_SINGLE("Out2 Right Invert Switch", WM8350_ROUT2_VOLUME, 10, 1, 0), SOC_SINGLE_TLV("Out2 Beep Volume", WM8350_BEEP_VOLUME, 5, 7, 0, out_mix_tlv), SOC_DOUBLE_R("Out1 Playback Switch", WM8350_LOUT1_VOLUME, WM8350_ROUT1_VOLUME, 14, 1, 1), SOC_DOUBLE_R("Out2 Playback Switch", WM8350_LOUT2_VOLUME, WM8350_ROUT2_VOLUME, 14, 1, 1), }; /* * DAPM Controls */ /* Left Playback Mixer */ static const struct snd_kcontrol_new wm8350_left_play_mixer_controls[] = { SOC_DAPM_SINGLE("Playback Switch", WM8350_LEFT_MIXER_CONTROL, 11, 1, 0), SOC_DAPM_SINGLE("Left Bypass Switch", WM8350_LEFT_MIXER_CONTROL, 2, 1, 0), SOC_DAPM_SINGLE("Right Playback Switch", WM8350_LEFT_MIXER_CONTROL, 12, 1, 0), SOC_DAPM_SINGLE("Left Sidetone Switch", WM8350_LEFT_MIXER_CONTROL, 0, 1, 0), SOC_DAPM_SINGLE("Right Sidetone Switch", WM8350_LEFT_MIXER_CONTROL, 1, 1, 0), }; /* Right Playback Mixer */ static const struct snd_kcontrol_new wm8350_right_play_mixer_controls[] = { SOC_DAPM_SINGLE("Playback Switch", WM8350_RIGHT_MIXER_CONTROL, 12, 1, 0), SOC_DAPM_SINGLE("Right Bypass Switch", WM8350_RIGHT_MIXER_CONTROL, 3, 1, 0), SOC_DAPM_SINGLE("Left Playback Switch", WM8350_RIGHT_MIXER_CONTROL, 11, 1, 0), SOC_DAPM_SINGLE("Left Sidetone Switch", WM8350_RIGHT_MIXER_CONTROL, 0, 1, 0), SOC_DAPM_SINGLE("Right Sidetone Switch", WM8350_RIGHT_MIXER_CONTROL, 1, 1, 0), }; /* Out4 Mixer */ static const struct snd_kcontrol_new wm8350_out4_mixer_controls[] = { SOC_DAPM_SINGLE("Right Playback Switch", WM8350_OUT4_MIXER_CONTROL, 12, 1, 0), SOC_DAPM_SINGLE("Left Playback Switch", WM8350_OUT4_MIXER_CONTROL, 11, 1, 0), SOC_DAPM_SINGLE("Right Capture Switch", WM8350_OUT4_MIXER_CONTROL, 9, 1, 0), SOC_DAPM_SINGLE("Out3 Playback Switch", WM8350_OUT4_MIXER_CONTROL, 2, 1, 0), SOC_DAPM_SINGLE("Right Mixer Switch", WM8350_OUT4_MIXER_CONTROL, 1, 1, 0), SOC_DAPM_SINGLE("Left Mixer Switch", WM8350_OUT4_MIXER_CONTROL, 0, 1, 0), }; /* Out3 Mixer */ static const struct snd_kcontrol_new wm8350_out3_mixer_controls[] = { SOC_DAPM_SINGLE("Left Playback Switch", WM8350_OUT3_MIXER_CONTROL, 11, 1, 0), SOC_DAPM_SINGLE("Left Capture Switch", WM8350_OUT3_MIXER_CONTROL, 8, 1, 0), SOC_DAPM_SINGLE("Out4 Playback Switch", WM8350_OUT3_MIXER_CONTROL, 3, 1, 0), SOC_DAPM_SINGLE("Left Mixer Switch", WM8350_OUT3_MIXER_CONTROL, 0, 1, 0), }; /* Left Input Mixer */ static const struct snd_kcontrol_new wm8350_left_capt_mixer_controls[] = { SOC_DAPM_SINGLE_TLV("L2 Capture Volume", WM8350_INPUT_MIXER_VOLUME_L, 1, 7, 0, out_mix_tlv), SOC_DAPM_SINGLE_TLV("L3 Capture Volume", WM8350_INPUT_MIXER_VOLUME_L, 9, 7, 0, out_mix_tlv), SOC_DAPM_SINGLE("PGA Capture Switch", WM8350_LEFT_INPUT_VOLUME, 14, 1, 1), }; /* Right Input Mixer */ static const struct snd_kcontrol_new wm8350_right_capt_mixer_controls[] = { SOC_DAPM_SINGLE_TLV("L2 Capture Volume", WM8350_INPUT_MIXER_VOLUME_R, 5, 7, 0, out_mix_tlv), SOC_DAPM_SINGLE_TLV("L3 Capture Volume", WM8350_INPUT_MIXER_VOLUME_R, 13, 7, 0, out_mix_tlv), SOC_DAPM_SINGLE("PGA Capture Switch", WM8350_RIGHT_INPUT_VOLUME, 14, 1, 1), }; /* Left Mic Mixer */ static const struct snd_kcontrol_new wm8350_left_mic_mixer_controls[] = { SOC_DAPM_SINGLE("INN Capture Switch", WM8350_INPUT_CONTROL, 1, 1, 0), SOC_DAPM_SINGLE("INP Capture Switch", WM8350_INPUT_CONTROL, 0, 1, 0), SOC_DAPM_SINGLE("IN2 Capture Switch", WM8350_INPUT_CONTROL, 2, 1, 0), }; /* Right Mic Mixer */ static const struct snd_kcontrol_new wm8350_right_mic_mixer_controls[] = { SOC_DAPM_SINGLE("INN Capture Switch", WM8350_INPUT_CONTROL, 9, 1, 0), SOC_DAPM_SINGLE("INP Capture Switch", WM8350_INPUT_CONTROL, 8, 1, 0), SOC_DAPM_SINGLE("IN2 Capture Switch", WM8350_INPUT_CONTROL, 10, 1, 0), }; /* Beep Switch */ static const struct snd_kcontrol_new wm8350_beep_switch_controls = SOC_DAPM_SINGLE("Switch", WM8350_BEEP_VOLUME, 15, 1, 1); /* Out4 Capture Mux */ static const struct snd_kcontrol_new wm8350_out4_capture_controls = SOC_DAPM_ENUM("Route", wm8350_enum[7]); static const struct snd_soc_dapm_widget wm8350_dapm_widgets[] = { SND_SOC_DAPM_PGA("IN3R PGA", WM8350_POWER_MGMT_2, 11, 0, NULL, 0), SND_SOC_DAPM_PGA("IN3L PGA", WM8350_POWER_MGMT_2, 10, 0, NULL, 0), SND_SOC_DAPM_PGA_E("Right Out2 PGA", WM8350_POWER_MGMT_3, 3, 0, NULL, 0, pga_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_PGA_E("Left Out2 PGA", WM8350_POWER_MGMT_3, 2, 0, NULL, 0, pga_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_PGA_E("Right Out1 PGA", WM8350_POWER_MGMT_3, 1, 0, NULL, 0, pga_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_PGA_E("Left Out1 PGA", WM8350_POWER_MGMT_3, 0, 0, NULL, 0, pga_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_MIXER("Right Capture Mixer", WM8350_POWER_MGMT_2, 7, 0, &wm8350_right_capt_mixer_controls[0], ARRAY_SIZE(wm8350_right_capt_mixer_controls)), SND_SOC_DAPM_MIXER("Left Capture Mixer", WM8350_POWER_MGMT_2, 6, 0, &wm8350_left_capt_mixer_controls[0], ARRAY_SIZE(wm8350_left_capt_mixer_controls)), SND_SOC_DAPM_MIXER("Out4 Mixer", WM8350_POWER_MGMT_2, 5, 0, &wm8350_out4_mixer_controls[0], ARRAY_SIZE(wm8350_out4_mixer_controls)), SND_SOC_DAPM_MIXER("Out3 Mixer", WM8350_POWER_MGMT_2, 4, 0, &wm8350_out3_mixer_controls[0], ARRAY_SIZE(wm8350_out3_mixer_controls)), SND_SOC_DAPM_MIXER("Right Playback Mixer", WM8350_POWER_MGMT_2, 1, 0, &wm8350_right_play_mixer_controls[0], ARRAY_SIZE(wm8350_right_play_mixer_controls)), SND_SOC_DAPM_MIXER("Left Playback Mixer", WM8350_POWER_MGMT_2, 0, 0, &wm8350_left_play_mixer_controls[0], ARRAY_SIZE(wm8350_left_play_mixer_controls)), SND_SOC_DAPM_MIXER("Left Mic Mixer", WM8350_POWER_MGMT_2, 8, 0, &wm8350_left_mic_mixer_controls[0], ARRAY_SIZE(wm8350_left_mic_mixer_controls)), SND_SOC_DAPM_MIXER("Right Mic Mixer", WM8350_POWER_MGMT_2, 9, 0, &wm8350_right_mic_mixer_controls[0], ARRAY_SIZE(wm8350_right_mic_mixer_controls)), /* virtual mixer for Beep and Out2R */ SND_SOC_DAPM_MIXER("Out2 Mixer", SND_SOC_NOPM, 0, 0, NULL, 0), SND_SOC_DAPM_SWITCH("Beep", WM8350_POWER_MGMT_3, 7, 0, &wm8350_beep_switch_controls), SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8350_POWER_MGMT_4, 3, 0), SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8350_POWER_MGMT_4, 2, 0), SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8350_POWER_MGMT_4, 5, 0), SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8350_POWER_MGMT_4, 4, 0), SND_SOC_DAPM_MICBIAS("Mic Bias", WM8350_POWER_MGMT_1, 4, 0), SND_SOC_DAPM_MUX("Out4 Capture Channel", SND_SOC_NOPM, 0, 0, &wm8350_out4_capture_controls), SND_SOC_DAPM_OUTPUT("OUT1R"), SND_SOC_DAPM_OUTPUT("OUT1L"), SND_SOC_DAPM_OUTPUT("OUT2R"), SND_SOC_DAPM_OUTPUT("OUT2L"), SND_SOC_DAPM_OUTPUT("OUT3"), SND_SOC_DAPM_OUTPUT("OUT4"), SND_SOC_DAPM_INPUT("IN1RN"), SND_SOC_DAPM_INPUT("IN1RP"), SND_SOC_DAPM_INPUT("IN2R"), SND_SOC_DAPM_INPUT("IN1LP"), SND_SOC_DAPM_INPUT("IN1LN"), SND_SOC_DAPM_INPUT("IN2L"), SND_SOC_DAPM_INPUT("IN3R"), SND_SOC_DAPM_INPUT("IN3L"), }; static const struct snd_soc_dapm_route audio_map[] = { /* left playback mixer */ {"Left Playback Mixer", "Playback Switch", "Left DAC"}, {"Left Playback Mixer", "Left Bypass Switch", "IN3L PGA"}, {"Left Playback Mixer", "Right Playback Switch", "Right DAC"}, {"Left Playback Mixer", "Left Sidetone Switch", "Left Mic Mixer"}, {"Left Playback Mixer", "Right Sidetone Switch", "Right Mic Mixer"}, /* right playback mixer */ {"Right Playback Mixer", "Playback Switch", "Right DAC"}, {"Right Playback Mixer", "Right Bypass Switch", "IN3R PGA"}, {"Right Playback Mixer", "Left Playback Switch", "Left DAC"}, {"Right Playback Mixer", "Left Sidetone Switch", "Left Mic Mixer"}, {"Right Playback Mixer", "Right Sidetone Switch", "Right Mic Mixer"}, /* out4 playback mixer */ {"Out4 Mixer", "Right Playback Switch", "Right DAC"}, {"Out4 Mixer", "Left Playback Switch", "Left DAC"}, {"Out4 Mixer", "Right Capture Switch", "Right Capture Mixer"}, {"Out4 Mixer", "Out3 Playback Switch", "Out3 Mixer"}, {"Out4 Mixer", "Right Mixer Switch", "Right Playback Mixer"}, {"Out4 Mixer", "Left Mixer Switch", "Left Playback Mixer"}, {"OUT4", NULL, "Out4 Mixer"}, /* out3 playback mixer */ {"Out3 Mixer", "Left Playback Switch", "Left DAC"}, {"Out3 Mixer", "Left Capture Switch", "Left Capture Mixer"}, {"Out3 Mixer", "Left Mixer Switch", "Left Playback Mixer"}, {"Out3 Mixer", "Out4 Playback Switch", "Out4 Mixer"}, {"OUT3", NULL, "Out3 Mixer"}, /* out2 */ {"Right Out2 PGA", NULL, "Right Playback Mixer"}, {"Left Out2 PGA", NULL, "Left Playback Mixer"}, {"OUT2L", NULL, "Left Out2 PGA"}, {"OUT2R", NULL, "Right Out2 PGA"}, /* out1 */ {"Right Out1 PGA", NULL, "Right Playback Mixer"}, {"Left Out1 PGA", NULL, "Left Playback Mixer"}, {"OUT1L", NULL, "Left Out1 PGA"}, {"OUT1R", NULL, "Right Out1 PGA"}, /* ADCs */ {"Left ADC", NULL, "Left Capture Mixer"}, {"Right ADC", NULL, "Right Capture Mixer"}, /* Left capture mixer */ {"Left Capture Mixer", "L2 Capture Volume", "IN2L"}, {"Left Capture Mixer", "L3 Capture Volume", "IN3L PGA"}, {"Left Capture Mixer", "PGA Capture Switch", "Left Mic Mixer"}, {"Left Capture Mixer", NULL, "Out4 Capture Channel"}, /* Right capture mixer */ {"Right Capture Mixer", "L2 Capture Volume", "IN2R"}, {"Right Capture Mixer", "L3 Capture Volume", "IN3R PGA"}, {"Right Capture Mixer", "PGA Capture Switch", "Right Mic Mixer"}, {"Right Capture Mixer", NULL, "Out4 Capture Channel"}, /* L3 Inputs */ {"IN3L PGA", NULL, "IN3L"}, {"IN3R PGA", NULL, "IN3R"}, /* Left Mic mixer */ {"Left Mic Mixer", "INN Capture Switch", "IN1LN"}, {"Left Mic Mixer", "INP Capture Switch", "IN1LP"}, {"Left Mic Mixer", "IN2 Capture Switch", "IN2L"}, /* Right Mic mixer */ {"Right Mic Mixer", "INN Capture Switch", "IN1RN"}, {"Right Mic Mixer", "INP Capture Switch", "IN1RP"}, {"Right Mic Mixer", "IN2 Capture Switch", "IN2R"}, /* out 4 capture */ {"Out4 Capture Channel", NULL, "Out4 Mixer"}, /* Beep */ {"Beep", NULL, "IN3R PGA"}, }; static int wm8350_add_widgets(struct snd_soc_codec *codec) { int ret; ret = snd_soc_dapm_new_controls(codec, wm8350_dapm_widgets, ARRAY_SIZE(wm8350_dapm_widgets)); if (ret != 0) { dev_err(codec->dev, "dapm control register failed\n"); return ret; } /* set up audio paths */ ret = snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); if (ret != 0) { dev_err(codec->dev, "DAPM route register failed\n"); return ret; } return 0; } static int wm8350_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 wm8350 *wm8350 = codec->control_data; u16 fll_4; switch (clk_id) { case WM8350_MCLK_SEL_MCLK: wm8350_clear_bits(wm8350, WM8350_CLOCK_CONTROL_1, WM8350_MCLK_SEL); break; case WM8350_MCLK_SEL_PLL_MCLK: case WM8350_MCLK_SEL_PLL_DAC: case WM8350_MCLK_SEL_PLL_ADC: case WM8350_MCLK_SEL_PLL_32K: wm8350_set_bits(wm8350, WM8350_CLOCK_CONTROL_1, WM8350_MCLK_SEL); fll_4 = wm8350_codec_read(codec, WM8350_FLL_CONTROL_4) & ~WM8350_FLL_CLK_SRC_MASK; wm8350_codec_write(codec, WM8350_FLL_CONTROL_4, fll_4 | clk_id); break; } /* MCLK direction */ if (dir == WM8350_MCLK_DIR_OUT) wm8350_set_bits(wm8350, WM8350_CLOCK_CONTROL_2, WM8350_MCLK_DIR); else wm8350_clear_bits(wm8350, WM8350_CLOCK_CONTROL_2, WM8350_MCLK_DIR); return 0; } static int wm8350_set_clkdiv(struct snd_soc_dai *codec_dai, int div_id, int div) { struct snd_soc_codec *codec = codec_dai->codec; u16 val; switch (div_id) { case WM8350_ADC_CLKDIV: val = wm8350_codec_read(codec, WM8350_ADC_DIVIDER) & ~WM8350_ADC_CLKDIV_MASK; wm8350_codec_write(codec, WM8350_ADC_DIVIDER, val | div); break; case WM8350_DAC_CLKDIV: val = wm8350_codec_read(codec, WM8350_DAC_CLOCK_CONTROL) & ~WM8350_DAC_CLKDIV_MASK; wm8350_codec_write(codec, WM8350_DAC_CLOCK_CONTROL, val | div); break; case WM8350_BCLK_CLKDIV: val = wm8350_codec_read(codec, WM8350_CLOCK_CONTROL_1) & ~WM8350_BCLK_DIV_MASK; wm8350_codec_write(codec, WM8350_CLOCK_CONTROL_1, val | div); break; case WM8350_OPCLK_CLKDIV: val = wm8350_codec_read(codec, WM8350_CLOCK_CONTROL_1) & ~WM8350_OPCLK_DIV_MASK; wm8350_codec_write(codec, WM8350_CLOCK_CONTROL_1, val | div); break; case WM8350_SYS_CLKDIV: val = wm8350_codec_read(codec, WM8350_CLOCK_CONTROL_1) & ~WM8350_MCLK_DIV_MASK; wm8350_codec_write(codec, WM8350_CLOCK_CONTROL_1, val | div); break; case WM8350_DACLR_CLKDIV: val = wm8350_codec_read(codec, WM8350_DAC_LR_RATE) & ~WM8350_DACLRC_RATE_MASK; wm8350_codec_write(codec, WM8350_DAC_LR_RATE, val | div); break; case WM8350_ADCLR_CLKDIV: val = wm8350_codec_read(codec, WM8350_ADC_LR_RATE) & ~WM8350_ADCLRC_RATE_MASK; wm8350_codec_write(codec, WM8350_ADC_LR_RATE, val | div); break; default: return -EINVAL; } return 0; } static int wm8350_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { struct snd_soc_codec *codec = codec_dai->codec; u16 iface = wm8350_codec_read(codec, WM8350_AI_FORMATING) & ~(WM8350_AIF_BCLK_INV | WM8350_AIF_LRCLK_INV | WM8350_AIF_FMT_MASK); u16 master = wm8350_codec_read(codec, WM8350_AI_DAC_CONTROL) & ~WM8350_BCLK_MSTR; u16 dac_lrc = wm8350_codec_read(codec, WM8350_DAC_LR_RATE) & ~WM8350_DACLRC_ENA; u16 adc_lrc = wm8350_codec_read(codec, WM8350_ADC_LR_RATE) & ~WM8350_ADCLRC_ENA; /* set master/slave audio interface */ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBM_CFM: master |= WM8350_BCLK_MSTR; dac_lrc |= WM8350_DACLRC_ENA; adc_lrc |= WM8350_ADCLRC_ENA; break; case SND_SOC_DAIFMT_CBS_CFS: break; default: return -EINVAL; } /* interface format */ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: iface |= 0x2 << 8; break; case SND_SOC_DAIFMT_RIGHT_J: break; case SND_SOC_DAIFMT_LEFT_J: iface |= 0x1 << 8; break; case SND_SOC_DAIFMT_DSP_A: iface |= 0x3 << 8; break; case SND_SOC_DAIFMT_DSP_B: iface |= 0x3 << 8 | WM8350_AIF_LRCLK_INV; break; default: return -EINVAL; } /* clock inversion */ switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: break; case SND_SOC_DAIFMT_IB_IF: iface |= WM8350_AIF_LRCLK_INV | WM8350_AIF_BCLK_INV; break; case SND_SOC_DAIFMT_IB_NF: iface |= WM8350_AIF_BCLK_INV; break; case SND_SOC_DAIFMT_NB_IF: iface |= WM8350_AIF_LRCLK_INV; break; default: return -EINVAL; } wm8350_codec_write(codec, WM8350_AI_FORMATING, iface); wm8350_codec_write(codec, WM8350_AI_DAC_CONTROL, master); wm8350_codec_write(codec, WM8350_DAC_LR_RATE, dac_lrc); wm8350_codec_write(codec, WM8350_ADC_LR_RATE, adc_lrc); return 0; } static int wm8350_pcm_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *codec_dai) { struct snd_soc_codec *codec = codec_dai->codec; int master = wm8350_codec_cache_read(codec, WM8350_AI_DAC_CONTROL) & WM8350_BCLK_MSTR; int enabled = 0; /* Check that the DACs or ADCs are enabled since they are * required for LRC in master mode. The DACs or ADCs need a * valid audio path i.e. pin -> ADC or DAC -> pin before * the LRC will be enabled in master mode. */ if (!master || cmd != SNDRV_PCM_TRIGGER_START) return 0; if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { enabled = wm8350_codec_cache_read(codec, WM8350_POWER_MGMT_4) & (WM8350_ADCR_ENA | WM8350_ADCL_ENA); } else { enabled = wm8350_codec_cache_read(codec, WM8350_POWER_MGMT_4) & (WM8350_DACR_ENA | WM8350_DACL_ENA); } if (!enabled) { dev_err(codec->dev, "%s: invalid audio path - no clocks available\n", __func__); return -EINVAL; } return 0; } static int wm8350_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *codec_dai) { struct snd_soc_codec *codec = codec_dai->codec; struct wm8350 *wm8350 = codec->control_data; u16 iface = wm8350_codec_read(codec, WM8350_AI_FORMATING) & ~WM8350_AIF_WL_MASK; /* bit size */ switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: break; case SNDRV_PCM_FORMAT_S20_3LE: iface |= 0x1 << 10; break; case SNDRV_PCM_FORMAT_S24_LE: iface |= 0x2 << 10; break; case SNDRV_PCM_FORMAT_S32_LE: iface |= 0x3 << 10; break; } wm8350_codec_write(codec, WM8350_AI_FORMATING, iface); /* The sloping stopband filter is recommended for use with * lower sample rates to improve performance. */ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { if (params_rate(params) < 24000) wm8350_set_bits(wm8350, WM8350_DAC_MUTE_VOLUME, WM8350_DAC_SB_FILT); else wm8350_clear_bits(wm8350, WM8350_DAC_MUTE_VOLUME, WM8350_DAC_SB_FILT); } return 0; } static int wm8350_mute(struct snd_soc_dai *dai, int mute) { struct snd_soc_codec *codec = dai->codec; struct wm8350 *wm8350 = codec->control_data; if (mute) wm8350_set_bits(wm8350, WM8350_DAC_MUTE, WM8350_DAC_MUTE_ENA); else wm8350_clear_bits(wm8350, WM8350_DAC_MUTE, WM8350_DAC_MUTE_ENA); return 0; } /* FLL divisors */ struct _fll_div { int div; /* FLL_OUTDIV */ int n; int k; int ratio; /* FLL_FRATIO */ }; /* The size in bits of the fll divide multiplied by 10 * to allow rounding later */ #define FIXED_FLL_SIZE ((1 << 16) * 10) static inline int fll_factors(struct _fll_div *fll_div, unsigned int input, unsigned int output) { u64 Kpart; unsigned int t1, t2, K, Nmod; if (output >= 2815250 && output <= 3125000) fll_div->div = 0x4; else if (output >= 5625000 && output <= 6250000) fll_div->div = 0x3; else if (output >= 11250000 && output <= 12500000) fll_div->div = 0x2; else if (output >= 22500000 && output <= 25000000) fll_div->div = 0x1; else { printk(KERN_ERR "wm8350: fll freq %d out of range\n", output); return -EINVAL; } if (input > 48000) fll_div->ratio = 1; else fll_div->ratio = 8; t1 = output * (1 << (fll_div->div + 1)); t2 = input * fll_div->ratio; fll_div->n = t1 / t2; Nmod = t1 % t2; if (Nmod) { Kpart = FIXED_FLL_SIZE * (long long)Nmod; do_div(Kpart, t2); K = Kpart & 0xFFFFFFFF; /* Check if we need to round */ if ((K % 10) >= 5) K += 5; /* Move down to proper range now rounding is done */ K /= 10; fll_div->k = K; } else fll_div->k = 0; return 0; } static int wm8350_set_fll(struct snd_soc_dai *codec_dai, int pll_id, int source, unsigned int freq_in, unsigned int freq_out) { struct snd_soc_codec *codec = codec_dai->codec; struct wm8350 *wm8350 = codec->control_data; struct wm8350_data *priv = codec->private_data; struct _fll_div fll_div; int ret = 0; u16 fll_1, fll_4; if (freq_in == priv->fll_freq_in && freq_out == priv->fll_freq_out) return 0; /* power down FLL - we need to do this for reconfiguration */ wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_FLL_ENA | WM8350_FLL_OSC_ENA); if (freq_out == 0 || freq_in == 0) return ret; ret = fll_factors(&fll_div, freq_in, freq_out); if (ret < 0) return ret; dev_dbg(wm8350->dev, "FLL in %u FLL out %u N 0x%x K 0x%x div %d ratio %d", freq_in, freq_out, fll_div.n, fll_div.k, fll_div.div, fll_div.ratio); /* set up N.K & dividers */ fll_1 = wm8350_codec_read(codec, WM8350_FLL_CONTROL_1) & ~(WM8350_FLL_OUTDIV_MASK | WM8350_FLL_RSP_RATE_MASK | 0xc000); wm8350_codec_write(codec, WM8350_FLL_CONTROL_1, fll_1 | (fll_div.div << 8) | 0x50); wm8350_codec_write(codec, WM8350_FLL_CONTROL_2, (fll_div.ratio << 11) | (fll_div. n & WM8350_FLL_N_MASK)); wm8350_codec_write(codec, WM8350_FLL_CONTROL_3, fll_div.k); fll_4 = wm8350_codec_read(codec, WM8350_FLL_CONTROL_4) & ~(WM8350_FLL_FRAC | WM8350_FLL_SLOW_LOCK_REF); wm8350_codec_write(codec, WM8350_FLL_CONTROL_4, fll_4 | (fll_div.k ? WM8350_FLL_FRAC : 0) | (fll_div.ratio == 8 ? WM8350_FLL_SLOW_LOCK_REF : 0)); /* power FLL on */ wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_FLL_OSC_ENA); wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_FLL_ENA); priv->fll_freq_out = freq_out; priv->fll_freq_in = freq_in; return 0; } static int wm8350_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { struct wm8350 *wm8350 = codec->control_data; struct wm8350_data *priv = codec->private_data; struct wm8350_audio_platform_data *platform = wm8350->codec.platform_data; u16 pm1; int ret; switch (level) { case SND_SOC_BIAS_ON: pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) & ~(WM8350_VMID_MASK | WM8350_CODEC_ISEL_MASK); wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1 | WM8350_VMID_50K | platform->codec_current_on << 14); break; case SND_SOC_BIAS_PREPARE: pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1); pm1 &= ~WM8350_VMID_MASK; wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1 | WM8350_VMID_50K); break; case SND_SOC_BIAS_STANDBY: if (codec->bias_level == SND_SOC_BIAS_OFF) { ret = regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies); if (ret != 0) return ret; /* Enable the system clock */ wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_SYSCLK_ENA); /* mute DAC & outputs */ wm8350_set_bits(wm8350, WM8350_DAC_MUTE, WM8350_DAC_MUTE_ENA); /* discharge cap memory */ wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL, platform->dis_out1 | (platform->dis_out2 << 2) | (platform->dis_out3 << 4) | (platform->dis_out4 << 6)); /* wait for discharge */ schedule_timeout_interruptible(msecs_to_jiffies (platform-> cap_discharge_msecs)); /* enable antipop */ wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL, (platform->vmid_s_curve << 8)); /* ramp up vmid */ wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, (platform-> codec_current_charge << 14) | WM8350_VMID_5K | WM8350_VMIDEN | WM8350_VBUFEN); /* wait for vmid */ schedule_timeout_interruptible(msecs_to_jiffies (platform-> vmid_charge_msecs)); /* turn on vmid 300k */ pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) & ~(WM8350_VMID_MASK | WM8350_CODEC_ISEL_MASK); pm1 |= WM8350_VMID_300K | (platform->codec_current_standby << 14); wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1); /* enable analogue bias */ pm1 |= WM8350_BIASEN; wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1); /* disable antipop */ wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL, 0); } else { /* turn on vmid 300k and reduce current */ pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) & ~(WM8350_VMID_MASK | WM8350_CODEC_ISEL_MASK); wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1 | WM8350_VMID_300K | (platform-> codec_current_standby << 14)); } break; case SND_SOC_BIAS_OFF: /* mute DAC & enable outputs */ wm8350_set_bits(wm8350, WM8350_DAC_MUTE, WM8350_DAC_MUTE_ENA); wm8350_set_bits(wm8350, WM8350_POWER_MGMT_3, WM8350_OUT1L_ENA | WM8350_OUT1R_ENA | WM8350_OUT2L_ENA | WM8350_OUT2R_ENA); /* enable anti pop S curve */ wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL, (platform->vmid_s_curve << 8)); /* turn off vmid */ pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) & ~WM8350_VMIDEN; wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1); /* wait */ schedule_timeout_interruptible(msecs_to_jiffies (platform-> vmid_discharge_msecs)); wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL, (platform->vmid_s_curve << 8) | platform->dis_out1 | (platform->dis_out2 << 2) | (platform->dis_out3 << 4) | (platform->dis_out4 << 6)); /* turn off VBuf and drain */ pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) & ~(WM8350_VBUFEN | WM8350_VMID_MASK); wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1 | WM8350_OUTPUT_DRAIN_EN); /* wait */ schedule_timeout_interruptible(msecs_to_jiffies (platform->drain_msecs)); pm1 &= ~WM8350_BIASEN; wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1); /* disable anti-pop */ wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL, 0); wm8350_clear_bits(wm8350, WM8350_LOUT1_VOLUME, WM8350_OUT1L_ENA); wm8350_clear_bits(wm8350, WM8350_ROUT1_VOLUME, WM8350_OUT1R_ENA); wm8350_clear_bits(wm8350, WM8350_LOUT2_VOLUME, WM8350_OUT2L_ENA); wm8350_clear_bits(wm8350, WM8350_ROUT2_VOLUME, WM8350_OUT2R_ENA); /* disable clock gen */ wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_SYSCLK_ENA); regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies); break; } codec->bias_level = level; return 0; } static int wm8350_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; wm8350_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } static int wm8350_resume(struct platform_device *pdev) { struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct snd_soc_codec *codec = socdev->card->codec; wm8350_set_bias_level(codec, SND_SOC_BIAS_STANDBY); if (codec->suspend_bias_level == SND_SOC_BIAS_ON) wm8350_set_bias_level(codec, SND_SOC_BIAS_ON); return 0; } static irqreturn_t wm8350_hp_jack_handler(int irq, void *data) { struct wm8350_data *priv = data; struct wm8350 *wm8350 = priv->codec.control_data; u16 reg; int report; int mask; struct wm8350_jack_data *jack = NULL; switch (irq - wm8350->irq_base) { case WM8350_IRQ_CODEC_JCK_DET_L: jack = &priv->hpl; mask = WM8350_JACK_L_LVL; break; case WM8350_IRQ_CODEC_JCK_DET_R: jack = &priv->hpr; mask = WM8350_JACK_R_LVL; break; default: BUG(); } if (!jack->jack) { dev_warn(wm8350->dev, "Jack interrupt called with no jack\n"); return IRQ_NONE; } /* Debounce */ msleep(200); reg = wm8350_reg_read(wm8350, WM8350_JACK_PIN_STATUS); if (reg & mask) report = jack->report; else report = 0; snd_soc_jack_report(jack->jack, report, jack->report); return IRQ_HANDLED; } /** * wm8350_hp_jack_detect - Enable headphone jack detection. * * @codec: WM8350 codec * @which: left or right jack detect signal * @jack: jack to report detection events on * @report: value to report * * Enables the headphone jack detection of the WM8350. If no report * is specified then detection is disabled. */ int wm8350_hp_jack_detect(struct snd_soc_codec *codec, enum wm8350_jack which, struct snd_soc_jack *jack, int report) { struct wm8350_data *priv = codec->private_data; struct wm8350 *wm8350 = codec->control_data; int irq; int ena; switch (which) { case WM8350_JDL: priv->hpl.jack = jack; priv->hpl.report = report; irq = WM8350_IRQ_CODEC_JCK_DET_L; ena = WM8350_JDL_ENA; break; case WM8350_JDR: priv->hpr.jack = jack; priv->hpr.report = report; irq = WM8350_IRQ_CODEC_JCK_DET_R; ena = WM8350_JDR_ENA; break; default: return -EINVAL; } if (report) { wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_TOCLK_ENA); wm8350_set_bits(wm8350, WM8350_JACK_DETECT, ena); } else { wm8350_clear_bits(wm8350, WM8350_JACK_DETECT, ena); } /* Sync status */ wm8350_hp_jack_handler(irq + wm8350->irq_base, priv); return 0; } EXPORT_SYMBOL_GPL(wm8350_hp_jack_detect); static irqreturn_t wm8350_mic_handler(int irq, void *data) { struct wm8350_data *priv = data; struct wm8350 *wm8350 = priv->codec.control_data; u16 reg; int report = 0; reg = wm8350_reg_read(wm8350, WM8350_JACK_PIN_STATUS); if (reg & WM8350_JACK_MICSCD_LVL) report |= priv->mic.short_report; if (reg & WM8350_JACK_MICSD_LVL) report |= priv->mic.report; snd_soc_jack_report(priv->mic.jack, report, priv->mic.report | priv->mic.short_report); return IRQ_HANDLED; } /** * wm8350_mic_jack_detect - Enable microphone jack detection. * * @codec: WM8350 codec * @jack: jack to report detection events on * @detect_report: value to report when presence detected * @short_report: value to report when microphone short detected * * Enables the microphone jack detection of the WM8350. If both reports * are specified as zero then detection is disabled. */ int wm8350_mic_jack_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack, int detect_report, int short_report) { struct wm8350_data *priv = codec->private_data; struct wm8350 *wm8350 = codec->control_data; priv->mic.jack = jack; priv->mic.report = detect_report; priv->mic.short_report = short_report; if (detect_report || short_report) { wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_TOCLK_ENA); wm8350_set_bits(wm8350, WM8350_POWER_MGMT_1, WM8350_MIC_DET_ENA); } else { wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_1, WM8350_MIC_DET_ENA); } return 0; } EXPORT_SYMBOL_GPL(wm8350_mic_jack_detect); static struct snd_soc_codec *wm8350_codec; static int wm8350_probe(struct platform_device *pdev) { struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct snd_soc_codec *codec; struct wm8350 *wm8350; struct wm8350_data *priv; int ret; struct wm8350_output *out1; struct wm8350_output *out2; BUG_ON(!wm8350_codec); socdev->card->codec = wm8350_codec; codec = socdev->card->codec; wm8350 = codec->control_data; priv = codec->private_data; /* Enable the codec */ wm8350_set_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CODEC_ENA); /* Enable robust clocking mode in ADC */ wm8350_codec_write(codec, WM8350_SECURITY, 0xa7); wm8350_codec_write(codec, 0xde, 0x13); wm8350_codec_write(codec, WM8350_SECURITY, 0); /* read OUT1 & OUT2 volumes */ out1 = &priv->out1; out2 = &priv->out2; out1->left_vol = (wm8350_reg_read(wm8350, WM8350_LOUT1_VOLUME) & WM8350_OUT1L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT; out1->right_vol = (wm8350_reg_read(wm8350, WM8350_ROUT1_VOLUME) & WM8350_OUT1R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT; out2->left_vol = (wm8350_reg_read(wm8350, WM8350_LOUT2_VOLUME) & WM8350_OUT2L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT; out2->right_vol = (wm8350_reg_read(wm8350, WM8350_ROUT2_VOLUME) & WM8350_OUT2R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT; wm8350_reg_write(wm8350, WM8350_LOUT1_VOLUME, 0); wm8350_reg_write(wm8350, WM8350_ROUT1_VOLUME, 0); wm8350_reg_write(wm8350, WM8350_LOUT2_VOLUME, 0); wm8350_reg_write(wm8350, WM8350_ROUT2_VOLUME, 0); /* Latch VU bits & mute */ wm8350_set_bits(wm8350, WM8350_LOUT1_VOLUME, WM8350_OUT1_VU | WM8350_OUT1L_MUTE); wm8350_set_bits(wm8350, WM8350_LOUT2_VOLUME, WM8350_OUT2_VU | WM8350_OUT2L_MUTE); wm8350_set_bits(wm8350, WM8350_ROUT1_VOLUME, WM8350_OUT1_VU | WM8350_OUT1R_MUTE); wm8350_set_bits(wm8350, WM8350_ROUT2_VOLUME, WM8350_OUT2_VU | WM8350_OUT2R_MUTE); /* Make sure jack detect is disabled to start off with */ wm8350_clear_bits(wm8350, WM8350_JACK_DETECT, WM8350_JDL_ENA | WM8350_JDR_ENA); wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L, wm8350_hp_jack_handler, 0, "Left jack detect", priv); wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R, wm8350_hp_jack_handler, 0, "Right jack detect", priv); wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_MICSCD, wm8350_mic_handler, 0, "Microphone short", priv); wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_MICD, wm8350_mic_handler, 0, "Microphone detect", priv); 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, wm8350_snd_controls, ARRAY_SIZE(wm8350_snd_controls)); wm8350_add_widgets(codec); wm8350_set_bias_level(codec, SND_SOC_BIAS_STANDBY); return 0; } static int wm8350_remove(struct platform_device *pdev) { struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct snd_soc_codec *codec = socdev->card->codec; struct wm8350 *wm8350 = codec->control_data; struct wm8350_data *priv = codec->private_data; int ret; wm8350_clear_bits(wm8350, WM8350_JACK_DETECT, WM8350_JDL_ENA | WM8350_JDR_ENA); wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_TOCLK_ENA); wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_MICD, priv); wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_MICSCD, priv); wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L, priv); wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R, priv); priv->hpl.jack = NULL; priv->hpr.jack = NULL; priv->mic.jack = NULL; /* cancel any work waiting to be queued. */ ret = cancel_delayed_work(&codec->delayed_work); /* if there was any work waiting then we run it now and * wait for its completion */ if (ret) { schedule_delayed_work(&codec->delayed_work, 0); flush_scheduled_work(); } wm8350_set_bias_level(codec, SND_SOC_BIAS_OFF); wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CODEC_ENA); return 0; } #define WM8350_RATES (SNDRV_PCM_RATE_8000_96000) #define WM8350_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ SNDRV_PCM_FMTBIT_S20_3LE |\ SNDRV_PCM_FMTBIT_S24_LE) static struct snd_soc_dai_ops wm8350_dai_ops = { .hw_params = wm8350_pcm_hw_params, .digital_mute = wm8350_mute, .trigger = wm8350_pcm_trigger, .set_fmt = wm8350_set_dai_fmt, .set_sysclk = wm8350_set_dai_sysclk, .set_pll = wm8350_set_fll, .set_clkdiv = wm8350_set_clkdiv, }; struct snd_soc_dai wm8350_dai = { .name = "WM8350", .playback = { .stream_name = "Playback", .channels_min = 1, .channels_max = 2, .rates = WM8350_RATES, .formats = WM8350_FORMATS, }, .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, .rates = WM8350_RATES, .formats = WM8350_FORMATS, }, .ops = &wm8350_dai_ops, }; EXPORT_SYMBOL_GPL(wm8350_dai); struct snd_soc_codec_device soc_codec_dev_wm8350 = { .probe = wm8350_probe, .remove = wm8350_remove, .suspend = wm8350_suspend, .resume = wm8350_resume, }; EXPORT_SYMBOL_GPL(soc_codec_dev_wm8350); static __devinit int wm8350_codec_probe(struct platform_device *pdev) { struct wm8350 *wm8350 = platform_get_drvdata(pdev); struct wm8350_data *priv; struct snd_soc_codec *codec; int ret, i; if (wm8350->codec.platform_data == NULL) { dev_err(&pdev->dev, "No audio platform data supplied\n"); return -EINVAL; } priv = kzalloc(sizeof(struct wm8350_data), GFP_KERNEL); if (priv == NULL) return -ENOMEM; for (i = 0; i < ARRAY_SIZE(supply_names); i++) priv->supplies[i].supply = supply_names[i]; ret = regulator_bulk_get(wm8350->dev, ARRAY_SIZE(priv->supplies), priv->supplies); if (ret != 0) goto err_priv; codec = &priv->codec; wm8350->codec.codec = codec; wm8350_dai.dev = &pdev->dev; mutex_init(&codec->mutex); INIT_LIST_HEAD(&codec->dapm_widgets); INIT_LIST_HEAD(&codec->dapm_paths); codec->dev = &pdev->dev; codec->name = "WM8350"; codec->owner = THIS_MODULE; codec->read = wm8350_codec_read; codec->write = wm8350_codec_write; codec->bias_level = SND_SOC_BIAS_OFF; codec->set_bias_level = wm8350_set_bias_level; codec->dai = &wm8350_dai; codec->num_dai = 1; codec->reg_cache_size = WM8350_MAX_REGISTER; codec->private_data = priv; codec->control_data = wm8350; /* Put the codec into reset if it wasn't already */ wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CODEC_ENA); INIT_DELAYED_WORK(&codec->delayed_work, wm8350_pga_work); ret = snd_soc_register_codec(codec); if (ret != 0) goto err_supply; wm8350_codec = codec; ret = snd_soc_register_dai(&wm8350_dai); if (ret != 0) goto err_codec; return 0; err_codec: snd_soc_unregister_codec(codec); err_supply: regulator_bulk_free(ARRAY_SIZE(priv->supplies), priv->supplies); err_priv: kfree(priv); wm8350_codec = NULL; return ret; } static int __devexit wm8350_codec_remove(struct platform_device *pdev) { struct wm8350 *wm8350 = platform_get_drvdata(pdev); struct snd_soc_codec *codec = wm8350->codec.codec; struct wm8350_data *priv = codec->private_data; snd_soc_unregister_dai(&wm8350_dai); snd_soc_unregister_codec(codec); regulator_bulk_free(ARRAY_SIZE(priv->supplies), priv->supplies); kfree(priv); wm8350_codec = NULL; return 0; } static struct platform_driver wm8350_codec_driver = { .driver = { .name = "wm8350-codec", .owner = THIS_MODULE, }, .probe = wm8350_codec_probe, .remove = __devexit_p(wm8350_codec_remove), }; static __init int wm8350_init(void) { return platform_driver_register(&wm8350_codec_driver); } module_init(wm8350_init); static __exit void wm8350_exit(void) { platform_driver_unregister(&wm8350_codec_driver); } module_exit(wm8350_exit); MODULE_DESCRIPTION("ASoC WM8350 driver"); MODULE_AUTHOR("Liam Girdwood"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:wm8350-codec");