/*
 * HD audio interface patch for Conexant HDA audio codec
 *
 * Copyright (c) 2006 Pototskiy Akex <alex.pototskiy@gmail.com>
 *                    Takashi Iwai <tiwai@suse.de>
 *                    Tobin Davis  <tdavis@dsl-only.net>
 *
 *  This driver is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This driver 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#include <linux/init.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/jack.h>

#include "hda_codec.h"
#include "hda_local.h"
#include "hda_auto_parser.h"
#include "hda_beep.h"
#include "hda_jack.h"
#include "hda_generic.h"

struct conexant_spec {
        struct hda_gen_spec gen;

        unsigned int beep_amp;

        /* extra EAPD pins */
        unsigned int num_eapds;
        hda_nid_t eapds[4];
        bool dynamic_eapd;
        hda_nid_t mute_led_eapd;

        unsigned int parse_flags; /* flag for snd_hda_parse_pin_defcfg() */

        /* OPLC XO specific */
        bool recording;
        bool dc_enable;
        unsigned int dc_input_bias; /* offset into olpc_xo_dc_bias */
        struct nid_path *dc_mode_path;

        int mute_led_polarity;
        unsigned int gpio_led;
        unsigned int gpio_mute_led_mask;
        unsigned int gpio_mic_led_mask;

};


#ifdef CONFIG_SND_HDA_INPUT_BEEP
static inline void set_beep_amp(struct conexant_spec *spec, hda_nid_t nid,
                                int idx, int dir)
{
        spec->gen.beep_nid = nid;
        spec->beep_amp = HDA_COMPOSE_AMP_VAL(nid, 1, idx, dir);
}
/* additional beep mixers; the actual parameters are overwritten at build */
static const struct snd_kcontrol_new cxt_beep_mixer[] = {
        HDA_CODEC_VOLUME_MONO("Beep Playback Volume", 0, 1, 0, HDA_OUTPUT),
        HDA_CODEC_MUTE_BEEP_MONO("Beep Playback Switch", 0, 1, 0, HDA_OUTPUT),
        { } /* end */
};

/* create beep controls if needed */
static int add_beep_ctls(struct hda_codec *codec)
{
        struct conexant_spec *spec = codec->spec;
        int err;

        if (spec->beep_amp) {
                const struct snd_kcontrol_new *knew;
                for (knew = cxt_beep_mixer; knew->name; knew++) {
                        struct snd_kcontrol *kctl;
                        kctl = snd_ctl_new1(knew, codec);
                        if (!kctl)
                                return -ENOMEM;
                        kctl->private_value = spec->beep_amp;
                        err = snd_hda_ctl_add(codec, 0, kctl);
                        if (err < 0)
                                return err;
                }
        }
        return 0;
}
#else
#define set_beep_amp(spec, nid, idx, dir) /* NOP */
#define add_beep_ctls(codec)    0
#endif

/*
 * Automatic parser for CX20641 & co
 */

#ifdef CONFIG_SND_HDA_INPUT_BEEP
static void cx_auto_parse_beep(struct hda_codec *codec)
{
        struct conexant_spec *spec = codec->spec;
        hda_nid_t nid;

        for_each_hda_codec_node(nid, codec)
                if (get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_BEEP) {
                        set_beep_amp(spec, nid, 0, HDA_OUTPUT);
                        break;
                }
}
#else
#define cx_auto_parse_beep(codec)
#endif

/* parse EAPDs */
static void cx_auto_parse_eapd(struct hda_codec *codec)
{
        struct conexant_spec *spec = codec->spec;
        hda_nid_t nid;

        for_each_hda_codec_node(nid, codec) {
                if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
                        continue;
                if (!(snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD))
                        continue;
                spec->eapds[spec->num_eapds++] = nid;
                if (spec->num_eapds >= ARRAY_SIZE(spec->eapds))
                        break;
        }

        /* NOTE: below is a wild guess; if we have more than two EAPDs,
         * it's a new chip, where EAPDs are supposed to be associated to
         * pins, and we can control EAPD per pin.
         * OTOH, if only one or two EAPDs are found, it's an old chip,
         * thus it might control over all pins.
         */
        if (spec->num_eapds > 2)
                spec->dynamic_eapd = 1;
}

static void cx_auto_turn_eapd(struct hda_codec *codec, int num_pins,
                              hda_nid_t *pins, bool on)
{
        int i;
        for (i = 0; i < num_pins; i++) {
                if (snd_hda_query_pin_caps(codec, pins[i]) & AC_PINCAP_EAPD)
                        snd_hda_codec_write(codec, pins[i], 0,
                                            AC_VERB_SET_EAPD_BTLENABLE,
                                            on ? 0x02 : 0);
        }
}

/* turn on/off EAPD according to Master switch */
static void cx_auto_vmaster_hook(void *private_data, int enabled)
{
        struct hda_codec *codec = private_data;
        struct conexant_spec *spec = codec->spec;

        cx_auto_turn_eapd(codec, spec->num_eapds, spec->eapds, enabled);
}

/* turn on/off EAPD according to Master switch (inversely!) for mute LED */
static void cx_auto_vmaster_hook_mute_led(void *private_data, int enabled)
{
        struct hda_codec *codec = private_data;
        struct conexant_spec *spec = codec->spec;

        snd_hda_codec_write(codec, spec->mute_led_eapd, 0,
                            AC_VERB_SET_EAPD_BTLENABLE,
                            enabled ? 0x00 : 0x02);
}

static int cx_auto_build_controls(struct hda_codec *codec)
{
        int err;

        err = snd_hda_gen_build_controls(codec);
        if (err < 0)
                return err;

        err = add_beep_ctls(codec);
        if (err < 0)
                return err;

        return 0;
}

static int cx_auto_init(struct hda_codec *codec)
{
        struct conexant_spec *spec = codec->spec;
        snd_hda_gen_init(codec);
        if (!spec->dynamic_eapd)
                cx_auto_turn_eapd(codec, spec->num_eapds, spec->eapds, true);

        snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_INIT);

        return 0;
}

static void cx_auto_reboot_notify(struct hda_codec *codec)
{
        struct conexant_spec *spec = codec->spec;

        switch (codec->core.vendor_id) {
        case 0x14f150f2: /* CX20722 */
        case 0x14f150f4: /* CX20724 */
                break;
        default:
                return;
        }

        /* Turn the CX20722 codec into D3 to avoid spurious noises
           from the internal speaker during (and after) reboot */
        cx_auto_turn_eapd(codec, spec->num_eapds, spec->eapds, false);

        snd_hda_codec_set_power_to_all(codec, codec->core.afg, AC_PWRST_D3);
        snd_hda_codec_write(codec, codec->core.afg, 0,
                            AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
}

static void cx_auto_free(struct hda_codec *codec)
{
        cx_auto_reboot_notify(codec);
        snd_hda_gen_free(codec);
}

static const struct hda_codec_ops cx_auto_patch_ops = {
        .build_controls = cx_auto_build_controls,
        .build_pcms = snd_hda_gen_build_pcms,
        .init = cx_auto_init,
        .reboot_notify = cx_auto_reboot_notify,
        .free = cx_auto_free,
        .unsol_event = snd_hda_jack_unsol_event,
#ifdef CONFIG_PM
        .check_power_status = snd_hda_gen_check_power_status,
#endif
};

/*
 * pin fix-up
 */
enum {
        CXT_PINCFG_LENOVO_X200,
        CXT_PINCFG_LENOVO_TP410,
        CXT_PINCFG_LEMOTE_A1004,
        CXT_PINCFG_LEMOTE_A1205,
        CXT_PINCFG_COMPAQ_CQ60,
        CXT_FIXUP_STEREO_DMIC,
        CXT_FIXUP_INC_MIC_BOOST,
        CXT_FIXUP_HEADPHONE_MIC_PIN,
        CXT_FIXUP_HEADPHONE_MIC,
        CXT_FIXUP_GPIO1,
        CXT_FIXUP_ASPIRE_DMIC,
        CXT_FIXUP_THINKPAD_ACPI,
        CXT_FIXUP_OLPC_XO,
        CXT_FIXUP_CAP_MIX_AMP,
        CXT_FIXUP_TOSHIBA_P105,
        CXT_FIXUP_HP_530,
        CXT_FIXUP_CAP_MIX_AMP_5047,
        CXT_FIXUP_MUTE_LED_EAPD,
        CXT_FIXUP_HP_DOCK,
        CXT_FIXUP_HP_SPECTRE,
        CXT_FIXUP_HP_GATE_MIC,
        CXT_FIXUP_MUTE_LED_GPIO,
        CXT_FIXUP_HEADSET_MIC,
        CXT_FIXUP_HP_MIC_NO_PRESENCE,
};

/* for hda_fixup_thinkpad_acpi() */
#include "thinkpad_helper.c"

static void cxt_fixup_stereo_dmic(struct hda_codec *codec,
                                  const struct hda_fixup *fix, int action)
{
        struct conexant_spec *spec = codec->spec;
        spec->gen.inv_dmic_split = 1;
}

static void cxt5066_increase_mic_boost(struct hda_codec *codec,
                                   const struct hda_fixup *fix, int action)
{
        if (action != HDA_FIXUP_ACT_PRE_PROBE)
                return;

        snd_hda_override_amp_caps(codec, 0x17, HDA_OUTPUT,
                                  (0x3 << AC_AMPCAP_OFFSET_SHIFT) |
                                  (0x4 << AC_AMPCAP_NUM_STEPS_SHIFT) |
                                  (0x27 << AC_AMPCAP_STEP_SIZE_SHIFT) |
                                  (0 << AC_AMPCAP_MUTE_SHIFT));
}

static void cxt_update_headset_mode(struct hda_codec *codec)
{
        /* The verbs used in this function were tested on a Conexant CX20751/2 codec. */
        int i;
        bool mic_mode = false;
        struct conexant_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->gen.autocfg;

        hda_nid_t mux_pin = spec->gen.imux_pins[spec->gen.cur_mux[0]];

        for (i = 0; i < cfg->num_inputs; i++)
                if (cfg->inputs[i].pin == mux_pin) {
                        mic_mode = !!cfg->inputs[i].is_headphone_mic;
                        break;
                }

        if (mic_mode) {
                snd_hda_codec_write_cache(codec, 0x1c, 0, 0x410, 0x7c); /* enable merged mode for analog int-mic */
                spec->gen.hp_jack_present = false;
        } else {
                snd_hda_codec_write_cache(codec, 0x1c, 0, 0x410, 0x54); /* disable merged mode for analog int-mic */
                spec->gen.hp_jack_present = snd_hda_jack_detect(codec, spec->gen.autocfg.hp_pins[0]);
        }

        snd_hda_gen_update_outputs(codec);
}

static void cxt_update_headset_mode_hook(struct hda_codec *codec,
                                         struct snd_kcontrol *kcontrol,
                                         struct snd_ctl_elem_value *ucontrol)
{
        cxt_update_headset_mode(codec);
}

static void cxt_fixup_headphone_mic(struct hda_codec *codec,
                                    const struct hda_fixup *fix, int action)
{
        struct conexant_spec *spec = codec->spec;

        switch (action) {
        case HDA_FIXUP_ACT_PRE_PROBE:
                spec->parse_flags |= HDA_PINCFG_HEADPHONE_MIC;
                snd_hdac_regmap_add_vendor_verb(&codec->core, 0x410);
                break;
        case HDA_FIXUP_ACT_PROBE:
                spec->gen.cap_sync_hook = cxt_update_headset_mode_hook;
                spec->gen.automute_hook = cxt_update_headset_mode;
                break;
        case HDA_FIXUP_ACT_INIT:
                cxt_update_headset_mode(codec);
                break;
        }
}

static void cxt_fixup_headset_mic(struct hda_codec *codec,
                                    const struct hda_fixup *fix, int action)
{
        struct conexant_spec *spec = codec->spec;

        switch (action) {
        case HDA_FIXUP_ACT_PRE_PROBE:
                spec->parse_flags |= HDA_PINCFG_HEADSET_MIC;
                break;
        }
}

/* OPLC XO 1.5 fixup */

/* OLPC XO-1.5 supports DC input mode (e.g. for use with analog sensors)
 * through the microphone jack.
 * When the user enables this through a mixer switch, both internal and
 * external microphones are disabled. Gain is fixed at 0dB. In this mode,
 * we also allow the bias to be configured through a separate mixer
 * control. */

#define update_mic_pin(codec, nid, val)                                 \
        snd_hda_codec_update_cache(codec, nid, 0,                       \
                                   AC_VERB_SET_PIN_WIDGET_CONTROL, val)

static const struct hda_input_mux olpc_xo_dc_bias = {
        .num_items = 3,
        .items = {
                { "Off", PIN_IN },
                { "50%", PIN_VREF50 },
                { "80%", PIN_VREF80 },
        },
};

static void olpc_xo_update_mic_boost(struct hda_codec *codec)
{
        struct conexant_spec *spec = codec->spec;
        int ch, val;

        for (ch = 0; ch < 2; ch++) {
                val = AC_AMP_SET_OUTPUT |
                        (ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT);
                if (!spec->dc_enable)
                        val |= snd_hda_codec_amp_read(codec, 0x17, ch, HDA_OUTPUT, 0);
                snd_hda_codec_write(codec, 0x17, 0,
                                    AC_VERB_SET_AMP_GAIN_MUTE, val);
        }
}

static void olpc_xo_update_mic_pins(struct hda_codec *codec)
{
        struct conexant_spec *spec = codec->spec;
        int cur_input, val;
        struct nid_path *path;

        cur_input = spec->gen.input_paths[0][spec->gen.cur_mux[0]];

        /* Set up mic pins for port-B, C and F dynamically as the recording
         * LED is turned on/off by these pin controls
         */
        if (!spec->dc_enable) {
                /* disable DC bias path and pin for port F */
                update_mic_pin(codec, 0x1e, 0);
                snd_hda_activate_path(codec, spec->dc_mode_path, false, false);

                /* update port B (ext mic) and C (int mic) */
                /* OLPC defers mic widget control until when capture is
                 * started because the microphone LED comes on as soon as
                 * these settings are put in place. if we did this before
                 * recording, it would give the false indication that
                 * recording is happening when it is not.
                 */
                update_mic_pin(codec, 0x1a, spec->recording ?
                               snd_hda_codec_get_pin_target(codec, 0x1a) : 0);
                update_mic_pin(codec, 0x1b, spec->recording ?
                               snd_hda_codec_get_pin_target(codec, 0x1b) : 0);
                /* enable normal mic path */
                path = snd_hda_get_path_from_idx(codec, cur_input);
                if (path)
                        snd_hda_activate_path(codec, path, true, false);
        } else {
                /* disable normal mic path */
                path = snd_hda_get_path_from_idx(codec, cur_input);
                if (path)
                        snd_hda_activate_path(codec, path, false, false);

                /* Even though port F is the DC input, the bias is controlled
                 * on port B.  We also leave that port as an active input (but
                 * unselected) in DC mode just in case that is necessary to
                 * make the bias setting take effect.
                 */
                if (spec->recording)
                        val = olpc_xo_dc_bias.items[spec->dc_input_bias].index;
                else
                        val = 0;
                update_mic_pin(codec, 0x1a, val);
                update_mic_pin(codec, 0x1b, 0);
                /* enable DC bias path and pin */
                update_mic_pin(codec, 0x1e, spec->recording ? PIN_IN : 0);
                snd_hda_activate_path(codec, spec->dc_mode_path, true, false);
        }
}

/* mic_autoswitch hook */
static void olpc_xo_automic(struct hda_codec *codec,
                            struct hda_jack_callback *jack)
{
        struct conexant_spec *spec = codec->spec;

        /* in DC mode, we don't handle automic */
        if (!spec->dc_enable)
                snd_hda_gen_mic_autoswitch(codec, jack);
        olpc_xo_update_mic_pins(codec);
        if (spec->dc_enable)
                olpc_xo_update_mic_boost(codec);
}

/* pcm_capture hook */
static void olpc_xo_capture_hook(struct hda_pcm_stream *hinfo,
                                 struct hda_codec *codec,
                                 struct snd_pcm_substream *substream,
                                 int action)
{
        struct conexant_spec *spec = codec->spec;

        /* toggle spec->recording flag and update mic pins accordingly
         * for turning on/off LED
         */
        switch (action) {
        case HDA_GEN_PCM_ACT_PREPARE:
                spec->recording = 1;
                olpc_xo_update_mic_pins(codec);
                break;
        case HDA_GEN_PCM_ACT_CLEANUP:
                spec->recording = 0;
                olpc_xo_update_mic_pins(codec);
                break;
        }
}

static int olpc_xo_dc_mode_get(struct snd_kcontrol *kcontrol,
                               struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct conexant_spec *spec = codec->spec;
        ucontrol->value.integer.value[0] = spec->dc_enable;
        return 0;
}

static int olpc_xo_dc_mode_put(struct snd_kcontrol *kcontrol,
                               struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct conexant_spec *spec = codec->spec;
        int dc_enable = !!ucontrol->value.integer.value[0];

        if (dc_enable == spec->dc_enable)
                return 0;

        spec->dc_enable = dc_enable;
        olpc_xo_update_mic_pins(codec);
        olpc_xo_update_mic_boost(codec);
        return 1;
}

static int olpc_xo_dc_bias_enum_get(struct snd_kcontrol *kcontrol,
                                    struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct conexant_spec *spec = codec->spec;
        ucontrol->value.enumerated.item[0] = spec->dc_input_bias;
        return 0;
}

static int olpc_xo_dc_bias_enum_info(struct snd_kcontrol *kcontrol,
                                     struct snd_ctl_elem_info *uinfo)
{
        return snd_hda_input_mux_info(&olpc_xo_dc_bias, uinfo);
}

static int olpc_xo_dc_bias_enum_put(struct snd_kcontrol *kcontrol,
                                    struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct conexant_spec *spec = codec->spec;
        const struct hda_input_mux *imux = &olpc_xo_dc_bias;
        unsigned int idx;

        idx = ucontrol->value.enumerated.item[0];
        if (idx >= imux->num_items)
                idx = imux->num_items - 1;
        if (spec->dc_input_bias == idx)
                return 0;

        spec->dc_input_bias = idx;
        if (spec->dc_enable)
                olpc_xo_update_mic_pins(codec);
        return 1;
}

static const struct snd_kcontrol_new olpc_xo_mixers[] = {
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name = "DC Mode Enable Switch",
                .info = snd_ctl_boolean_mono_info,
                .get = olpc_xo_dc_mode_get,
                .put = olpc_xo_dc_mode_put,
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name = "DC Input Bias Enum",
                .info = olpc_xo_dc_bias_enum_info,
                .get = olpc_xo_dc_bias_enum_get,
                .put = olpc_xo_dc_bias_enum_put,
        },
        {}
};

/* overriding mic boost put callback; update mic boost volume only when
 * DC mode is disabled
 */
static int olpc_xo_mic_boost_put(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct conexant_spec *spec = codec->spec;
        int ret = snd_hda_mixer_amp_volume_put(kcontrol, ucontrol);
        if (ret > 0 && spec->dc_enable)
                olpc_xo_update_mic_boost(codec);
        return ret;
}

static void cxt_fixup_olpc_xo(struct hda_codec *codec,
                                    const struct hda_fixup *fix, int action)
{
        struct conexant_spec *spec = codec->spec;
        int i;

        if (action != HDA_FIXUP_ACT_PROBE)
                return;

        spec->gen.mic_autoswitch_hook = olpc_xo_automic;
        spec->gen.pcm_capture_hook = olpc_xo_capture_hook;
        spec->dc_mode_path = snd_hda_add_new_path(codec, 0x1e, 0x14, 0);

        snd_hda_add_new_ctls(codec, olpc_xo_mixers);

        /* OLPC's microphone port is DC coupled for use with external sensors,
         * therefore we use a 50% mic bias in order to center the input signal
         * with the DC input range of the codec.
         */
        snd_hda_codec_set_pin_target(codec, 0x1a, PIN_VREF50);

        /* override mic boost control */
        for (i = 0; i < spec->gen.kctls.used; i++) {
                struct snd_kcontrol_new *kctl =
                        snd_array_elem(&spec->gen.kctls, i);
                if (!strcmp(kctl->name, "Mic Boost Volume")) {
                        kctl->put = olpc_xo_mic_boost_put;
                        break;
                }
        }
}

static void cxt_fixup_mute_led_eapd(struct hda_codec *codec,
                                    const struct hda_fixup *fix, int action)
{
        struct conexant_spec *spec = codec->spec;

        if (action == HDA_FIXUP_ACT_PRE_PROBE) {
                spec->mute_led_eapd = 0x1b;
                spec->dynamic_eapd = 1;
                spec->gen.vmaster_mute.hook = cx_auto_vmaster_hook_mute_led;
        }
}

/*
 * Fix max input level on mixer widget to 0dB
 * (originally it has 0x2b steps with 0dB offset 0x14)
 */
static void cxt_fixup_cap_mix_amp(struct hda_codec *codec,
                                  const struct hda_fixup *fix, int action)
{
        snd_hda_override_amp_caps(codec, 0x17, HDA_INPUT,
                                  (0x14 << AC_AMPCAP_OFFSET_SHIFT) |
                                  (0x14 << AC_AMPCAP_NUM_STEPS_SHIFT) |
                                  (0x05 << AC_AMPCAP_STEP_SIZE_SHIFT) |
                                  (1 << AC_AMPCAP_MUTE_SHIFT));
}

/*
 * Fix max input level on mixer widget to 0dB
 * (originally it has 0x1e steps with 0 dB offset 0x17)
 */
static void cxt_fixup_cap_mix_amp_5047(struct hda_codec *codec,
                                  const struct hda_fixup *fix, int action)
{
        snd_hda_override_amp_caps(codec, 0x10, HDA_INPUT,
                                  (0x17 << AC_AMPCAP_OFFSET_SHIFT) |
                                  (0x17 << AC_AMPCAP_NUM_STEPS_SHIFT) |
                                  (0x05 << AC_AMPCAP_STEP_SIZE_SHIFT) |
                                  (1 << AC_AMPCAP_MUTE_SHIFT));
}

static void cxt_fixup_hp_gate_mic_jack(struct hda_codec *codec,
                                       const struct hda_fixup *fix,
                                       int action)
{
        /* the mic pin (0x19) doesn't give an unsolicited event;
         * probe the mic pin together with the headphone pin (0x16)
         */
        if (action == HDA_FIXUP_ACT_PROBE)
                snd_hda_jack_set_gating_jack(codec, 0x19, 0x16);
}

/* update LED status via GPIO */
static void cxt_update_gpio_led(struct hda_codec *codec, unsigned int mask,
                                bool enabled)
{
        struct conexant_spec *spec = codec->spec;
        unsigned int oldval = spec->gpio_led;

        if (spec->mute_led_polarity)
                enabled = !enabled;

        if (enabled)
                spec->gpio_led &= ~mask;
        else
                spec->gpio_led |= mask;
        if (spec->gpio_led != oldval)
                snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_DATA,
                                    spec->gpio_led);
}

/* turn on/off mute LED via GPIO per vmaster hook */
static void cxt_fixup_gpio_mute_hook(void *private_data, int enabled)
{
        struct hda_codec *codec = private_data;
        struct conexant_spec *spec = codec->spec;

        cxt_update_gpio_led(codec, spec->gpio_mute_led_mask, enabled);
}

/* turn on/off mic-mute LED via GPIO per capture hook */
static void cxt_fixup_gpio_mic_mute_hook(struct hda_codec *codec,
                                         struct snd_kcontrol *kcontrol,
                                         struct snd_ctl_elem_value *ucontrol)
{
        struct conexant_spec *spec = codec->spec;

        if (ucontrol)
                cxt_update_gpio_led(codec, spec->gpio_mic_led_mask,
                                    ucontrol->value.integer.value[0] ||
                                    ucontrol->value.integer.value[1]);
}


static void cxt_fixup_mute_led_gpio(struct hda_codec *codec,
                                const struct hda_fixup *fix, int action)
{
        struct conexant_spec *spec = codec->spec;
        static const struct hda_verb gpio_init[] = {
                { 0x01, AC_VERB_SET_GPIO_MASK, 0x03 },
                { 0x01, AC_VERB_SET_GPIO_DIRECTION, 0x03 },
                {}
        };
        codec_info(codec, "action: %d gpio_led: %d\n", action, spec->gpio_led);

        if (action == HDA_FIXUP_ACT_PRE_PROBE) {
                spec->gen.vmaster_mute.hook = cxt_fixup_gpio_mute_hook;
                spec->gen.cap_sync_hook = cxt_fixup_gpio_mic_mute_hook;
                spec->gpio_led = 0;
                spec->mute_led_polarity = 0;
                spec->gpio_mute_led_mask = 0x01;
                spec->gpio_mic_led_mask = 0x02;
        }
        snd_hda_add_verbs(codec, gpio_init);
        if (spec->gpio_led)
                snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_DATA,
                                    spec->gpio_led);
}


/* ThinkPad X200 & co with cxt5051 */
static const struct hda_pintbl cxt_pincfg_lenovo_x200[] = {
        { 0x16, 0x042140ff }, /* HP (seq# overridden) */
        { 0x17, 0x21a11000 }, /* dock-mic */
        { 0x19, 0x2121103f }, /* dock-HP */
        { 0x1c, 0x21440100 }, /* dock SPDIF out */
        {}
};

/* ThinkPad 410/420/510/520, X201 & co with cxt5066 */
static const struct hda_pintbl cxt_pincfg_lenovo_tp410[] = {
        { 0x19, 0x042110ff }, /* HP (seq# overridden) */
        { 0x1a, 0x21a190f0 }, /* dock-mic */
        { 0x1c, 0x212140ff }, /* dock-HP */
        {}
};

/* Lemote A1004/A1205 with cxt5066 */
static const struct hda_pintbl cxt_pincfg_lemote[] = {
        { 0x1a, 0x90a10020 }, /* Internal mic */
        { 0x1b, 0x03a11020 }, /* External mic */
        { 0x1d, 0x400101f0 }, /* Not used */
        { 0x1e, 0x40a701f0 }, /* Not used */
        { 0x20, 0x404501f0 }, /* Not used */
        { 0x22, 0x404401f0 }, /* Not used */
        { 0x23, 0x40a701f0 }, /* Not used */
        {}
};

static const struct hda_fixup cxt_fixups[] = {
        [CXT_PINCFG_LENOVO_X200] = {
                .type = HDA_FIXUP_PINS,
                .v.pins = cxt_pincfg_lenovo_x200,
        },
        [CXT_PINCFG_LENOVO_TP410] = {
                .type = HDA_FIXUP_PINS,
                .v.pins = cxt_pincfg_lenovo_tp410,
                .chained = true,
                .chain_id = CXT_FIXUP_THINKPAD_ACPI,
        },
        [CXT_PINCFG_LEMOTE_A1004] = {
                .type = HDA_FIXUP_PINS,
                .chained = true,
                .chain_id = CXT_FIXUP_INC_MIC_BOOST,
                .v.pins = cxt_pincfg_lemote,
        },
        [CXT_PINCFG_LEMOTE_A1205] = {
                .type = HDA_FIXUP_PINS,
                .v.pins = cxt_pincfg_lemote,
        },
        [CXT_PINCFG_COMPAQ_CQ60] = {
                .type = HDA_FIXUP_PINS,
                .v.pins = (const struct hda_pintbl[]) {
                        /* 0x17 was falsely set up as a mic, it should 0x1d */
                        { 0x17, 0x400001f0 },
                        { 0x1d, 0x97a70120 },
                        { }
                }
        },
        [CXT_FIXUP_STEREO_DMIC] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = cxt_fixup_stereo_dmic,
        },
        [CXT_FIXUP_INC_MIC_BOOST] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = cxt5066_increase_mic_boost,
        },
        [CXT_FIXUP_HEADPHONE_MIC_PIN] = {
                .type = HDA_FIXUP_PINS,
                .chained = true,
                .chain_id = CXT_FIXUP_HEADPHONE_MIC,
                .v.pins = (const struct hda_pintbl[]) {
                        { 0x18, 0x03a1913d }, /* use as headphone mic, without its own jack detect */
                        { }
                }
        },
        [CXT_FIXUP_HEADPHONE_MIC] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = cxt_fixup_headphone_mic,
        },
        [CXT_FIXUP_GPIO1] = {
                .type = HDA_FIXUP_VERBS,
                .v.verbs = (const struct hda_verb[]) {
                        { 0x01, AC_VERB_SET_GPIO_MASK, 0x01 },
                        { 0x01, AC_VERB_SET_GPIO_DIRECTION, 0x01 },
                        { 0x01, AC_VERB_SET_GPIO_DATA, 0x01 },
                        { }
                },
        },
        [CXT_FIXUP_ASPIRE_DMIC] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = cxt_fixup_stereo_dmic,
                .chained = true,
                .chain_id = CXT_FIXUP_GPIO1,
        },
        [CXT_FIXUP_THINKPAD_ACPI] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = hda_fixup_thinkpad_acpi,
        },
        [CXT_FIXUP_OLPC_XO] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = cxt_fixup_olpc_xo,
        },
        [CXT_FIXUP_CAP_MIX_AMP] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = cxt_fixup_cap_mix_amp,
        },
        [CXT_FIXUP_TOSHIBA_P105] = {
                .type = HDA_FIXUP_PINS,
                .v.pins = (const struct hda_pintbl[]) {
                        { 0x10, 0x961701f0 }, /* speaker/hp */
                        { 0x12, 0x02a1901e }, /* ext mic */
                        { 0x14, 0x95a70110 }, /* int mic */
                        {}
                },
        },
        [CXT_FIXUP_HP_530] = {
                .type = HDA_FIXUP_PINS,
                .v.pins = (const struct hda_pintbl[]) {
                        { 0x12, 0x90a60160 }, /* int mic */
                        {}
                },
                .chained = true,
                .chain_id = CXT_FIXUP_CAP_MIX_AMP,
        },
        [CXT_FIXUP_CAP_MIX_AMP_5047] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = cxt_fixup_cap_mix_amp_5047,
        },
        [CXT_FIXUP_MUTE_LED_EAPD] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = cxt_fixup_mute_led_eapd,
        },
        [CXT_FIXUP_HP_DOCK] = {
                .type = HDA_FIXUP_PINS,
                .v.pins = (const struct hda_pintbl[]) {
                        { 0x16, 0x21011020 }, /* line-out */
                        { 0x18, 0x2181103f }, /* line-in */
                        { }
                },
                .chained = true,
                .chain_id = CXT_FIXUP_MUTE_LED_GPIO,
        },
        [CXT_FIXUP_HP_SPECTRE] = {
                .type = HDA_FIXUP_PINS,
                .v.pins = (const struct hda_pintbl[]) {
                        /* enable NID 0x1d for the speaker on top */
                        { 0x1d, 0x91170111 },
                        { }
                }
        },
        [CXT_FIXUP_HP_GATE_MIC] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = cxt_fixup_hp_gate_mic_jack,
        },
        [CXT_FIXUP_MUTE_LED_GPIO] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = cxt_fixup_mute_led_gpio,
        },
        [CXT_FIXUP_HEADSET_MIC] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = cxt_fixup_headset_mic,
        },
        [CXT_FIXUP_HP_MIC_NO_PRESENCE] = {
                .type = HDA_FIXUP_PINS,
                .v.pins = (const struct hda_pintbl[]) {
                        { 0x1a, 0x02a1113c },
                        { }
                },
                .chained = true,
                .chain_id = CXT_FIXUP_HEADSET_MIC,
        },
};

static const struct snd_pci_quirk cxt5045_fixups[] = {
        SND_PCI_QUIRK(0x103c, 0x30d5, "HP 530", CXT_FIXUP_HP_530),
        SND_PCI_QUIRK(0x1179, 0xff31, "Toshiba P105", CXT_FIXUP_TOSHIBA_P105),
        /* HP, Packard Bell, Fujitsu-Siemens & Lenovo laptops have
         * really bad sound over 0dB on NID 0x17.
         */
        SND_PCI_QUIRK_VENDOR(0x103c, "HP", CXT_FIXUP_CAP_MIX_AMP),
        SND_PCI_QUIRK_VENDOR(0x1631, "Packard Bell", CXT_FIXUP_CAP_MIX_AMP),
        SND_PCI_QUIRK_VENDOR(0x1734, "Fujitsu", CXT_FIXUP_CAP_MIX_AMP),
        SND_PCI_QUIRK_VENDOR(0x17aa, "Lenovo", CXT_FIXUP_CAP_MIX_AMP),
        {}
};

static const struct hda_model_fixup cxt5045_fixup_models[] = {
        { .id = CXT_FIXUP_CAP_MIX_AMP, .name = "cap-mix-amp" },
        { .id = CXT_FIXUP_TOSHIBA_P105, .name = "toshiba-p105" },
        { .id = CXT_FIXUP_HP_530, .name = "hp-530" },
        {}
};

static const struct snd_pci_quirk cxt5047_fixups[] = {
        /* HP laptops have really bad sound over 0 dB on NID 0x10.
         */
        SND_PCI_QUIRK_VENDOR(0x103c, "HP", CXT_FIXUP_CAP_MIX_AMP_5047),
        {}
};

static const struct hda_model_fixup cxt5047_fixup_models[] = {
        { .id = CXT_FIXUP_CAP_MIX_AMP_5047, .name = "cap-mix-amp" },
        {}
};

static const struct snd_pci_quirk cxt5051_fixups[] = {
        SND_PCI_QUIRK(0x103c, 0x360b, "Compaq CQ60", CXT_PINCFG_COMPAQ_CQ60),
        SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo X200", CXT_PINCFG_LENOVO_X200),
        {}
};

static const struct hda_model_fixup cxt5051_fixup_models[] = {
        { .id = CXT_PINCFG_LENOVO_X200, .name = "lenovo-x200" },
        {}
};

static const struct snd_pci_quirk cxt5066_fixups[] = {
        SND_PCI_QUIRK(0x1025, 0x0543, "Acer Aspire One 522", CXT_FIXUP_STEREO_DMIC),
        SND_PCI_QUIRK(0x1025, 0x054c, "Acer Aspire 3830TG", CXT_FIXUP_ASPIRE_DMIC),
        SND_PCI_QUIRK(0x1025, 0x054f, "Acer Aspire 4830T", CXT_FIXUP_ASPIRE_DMIC),
        SND_PCI_QUIRK(0x103c, 0x8079, "HP EliteBook 840 G3", CXT_FIXUP_HP_DOCK),
        SND_PCI_QUIRK(0x103c, 0x807C, "HP EliteBook 820 G3", CXT_FIXUP_HP_DOCK),
        SND_PCI_QUIRK(0x103c, 0x80FD, "HP ProBook 640 G2", CXT_FIXUP_HP_DOCK),
        SND_PCI_QUIRK(0x103c, 0x8174, "HP Spectre x360", CXT_FIXUP_HP_SPECTRE),
        SND_PCI_QUIRK(0x103c, 0x8115, "HP Z1 Gen3", CXT_FIXUP_HP_GATE_MIC),
        SND_PCI_QUIRK(0x103c, 0x814f, "HP ZBook 15u G3", CXT_FIXUP_MUTE_LED_GPIO),
        SND_PCI_QUIRK(0x103c, 0x822e, "HP ProBook 440 G4", CXT_FIXUP_MUTE_LED_GPIO),
        SND_PCI_QUIRK(0x103c, 0x8299, "HP 800 G3 SFF", CXT_FIXUP_HP_MIC_NO_PRESENCE),
        SND_PCI_QUIRK(0x103c, 0x829a, "HP 800 G3 DM", CXT_FIXUP_HP_MIC_NO_PRESENCE),
        SND_PCI_QUIRK(0x1043, 0x138d, "Asus", CXT_FIXUP_HEADPHONE_MIC_PIN),
        SND_PCI_QUIRK(0x152d, 0x0833, "OLPC XO-1.5", CXT_FIXUP_OLPC_XO),
        SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo T400", CXT_PINCFG_LENOVO_TP410),
        SND_PCI_QUIRK(0x17aa, 0x215e, "Lenovo T410", CXT_PINCFG_LENOVO_TP410),
        SND_PCI_QUIRK(0x17aa, 0x215f, "Lenovo T510", CXT_PINCFG_LENOVO_TP410),
        SND_PCI_QUIRK(0x17aa, 0x21ce, "Lenovo T420", CXT_PINCFG_LENOVO_TP410),
        SND_PCI_QUIRK(0x17aa, 0x21cf, "Lenovo T520", CXT_PINCFG_LENOVO_TP410),
        SND_PCI_QUIRK(0x17aa, 0x21da, "Lenovo X220", CXT_PINCFG_LENOVO_TP410),
        SND_PCI_QUIRK(0x17aa, 0x21db, "Lenovo X220-tablet", CXT_PINCFG_LENOVO_TP410),
        SND_PCI_QUIRK(0x17aa, 0x38af, "Lenovo IdeaPad Z560", CXT_FIXUP_MUTE_LED_EAPD),
        SND_PCI_QUIRK(0x17aa, 0x390b, "Lenovo G50-80", CXT_FIXUP_STEREO_DMIC),
        SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC),
        SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310", CXT_FIXUP_STEREO_DMIC),
        SND_PCI_QUIRK(0x17aa, 0x3978, "Lenovo G50-70", CXT_FIXUP_STEREO_DMIC),
        SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205", CXT_FIXUP_STEREO_DMIC),
        SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad", CXT_FIXUP_THINKPAD_ACPI),
        SND_PCI_QUIRK(0x1c06, 0x2011, "Lemote A1004", CXT_PINCFG_LEMOTE_A1004),
        SND_PCI_QUIRK(0x1c06, 0x2012, "Lemote A1205", CXT_PINCFG_LEMOTE_A1205),
        {}
};

static const struct hda_model_fixup cxt5066_fixup_models[] = {
        { .id = CXT_FIXUP_STEREO_DMIC, .name = "stereo-dmic" },
        { .id = CXT_FIXUP_GPIO1, .name = "gpio1" },
        { .id = CXT_FIXUP_HEADPHONE_MIC_PIN, .name = "headphone-mic-pin" },
        { .id = CXT_PINCFG_LENOVO_TP410, .name = "tp410" },
        { .id = CXT_FIXUP_THINKPAD_ACPI, .name = "thinkpad" },
        { .id = CXT_PINCFG_LEMOTE_A1004, .name = "lemote-a1004" },
        { .id = CXT_PINCFG_LEMOTE_A1205, .name = "lemote-a1205" },
        { .id = CXT_FIXUP_OLPC_XO, .name = "olpc-xo" },
        { .id = CXT_FIXUP_MUTE_LED_EAPD, .name = "mute-led-eapd" },
        { .id = CXT_FIXUP_HP_DOCK, .name = "hp-dock" },
        { .id = CXT_FIXUP_MUTE_LED_GPIO, .name = "mute-led-gpio" },

        {}
};

/* add "fake" mute amp-caps to DACs on cx5051 so that mixer mute switches
 * can be created (bko#42825)
 */
static void add_cx5051_fake_mutes(struct hda_codec *codec)
{
        struct conexant_spec *spec = codec->spec;
        static hda_nid_t out_nids[] = {
                0x10, 0x11, 0
        };
        hda_nid_t *p;

        for (p = out_nids; *p; p++)
                snd_hda_override_amp_caps(codec, *p, HDA_OUTPUT,
                                          AC_AMPCAP_MIN_MUTE |
                                          query_amp_caps(codec, *p, HDA_OUTPUT));
        spec->gen.dac_min_mute = true;
}

static int patch_conexant_auto(struct hda_codec *codec)
{
        struct conexant_spec *spec;
        int err;

        codec_info(codec, "%s: BIOS auto-probing.\n", codec->core.chip_name);

        spec = kzalloc(sizeof(*spec), GFP_KERNEL);
        if (!spec)
                return -ENOMEM;
        snd_hda_gen_spec_init(&spec->gen);
        codec->spec = spec;
        codec->patch_ops = cx_auto_patch_ops;

        cx_auto_parse_beep(codec);
        cx_auto_parse_eapd(codec);
        spec->gen.own_eapd_ctl = 1;
        if (spec->dynamic_eapd)
                spec->gen.vmaster_mute.hook = cx_auto_vmaster_hook;

        switch (codec->core.vendor_id) {
        case 0x14f15045:
                codec->single_adc_amp = 1;
                spec->gen.mixer_nid = 0x17;
                spec->gen.add_stereo_mix_input = HDA_HINT_STEREO_MIX_AUTO;
                snd_hda_pick_fixup(codec, cxt5045_fixup_models,
                                   cxt5045_fixups, cxt_fixups);
                break;
        case 0x14f15047:
                codec->pin_amp_workaround = 1;
                spec->gen.mixer_nid = 0x19;
                spec->gen.add_stereo_mix_input = HDA_HINT_STEREO_MIX_AUTO;
                snd_hda_pick_fixup(codec, cxt5047_fixup_models,
                                   cxt5047_fixups, cxt_fixups);
                break;
        case 0x14f15051:
                add_cx5051_fake_mutes(codec);
                codec->pin_amp_workaround = 1;
                snd_hda_pick_fixup(codec, cxt5051_fixup_models,
                                   cxt5051_fixups, cxt_fixups);
                break;
        case 0x14f150f2:
                codec->power_save_node = 1;
                /* Fall through */
        default:
                codec->pin_amp_workaround = 1;
                snd_hda_pick_fixup(codec, cxt5066_fixup_models,
                                   cxt5066_fixups, cxt_fixups);
                break;
        }

        /* Show mute-led control only on HP laptops
         * This is a sort of white-list: on HP laptops, EAPD corresponds
         * only to the mute-LED without actualy amp function.  Meanwhile,
         * others may use EAPD really as an amp switch, so it might be
         * not good to expose it blindly.
         */
        switch (codec->core.subsystem_id >> 16) {
        case 0x103c:
                spec->gen.vmaster_mute_enum = 1;
                break;
        }

        snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PRE_PROBE);

        err = snd_hda_parse_pin_defcfg(codec, &spec->gen.autocfg, NULL,
                                       spec->parse_flags);
        if (err < 0)
                goto error;

        err = snd_hda_gen_parse_auto_config(codec, &spec->gen.autocfg);
        if (err < 0)
                goto error;

        /* Some laptops with Conexant chips show stalls in S3 resume,
         * which falls into the single-cmd mode.
         * Better to make reset, then.
         */
        if (!codec->bus->core.sync_write) {
                codec_info(codec,
                           "Enable sync_write for stable communication\n");
                codec->bus->core.sync_write = 1;
                codec->bus->allow_bus_reset = 1;
        }

        snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PROBE);

        return 0;

 error:
        cx_auto_free(codec);
        return err;
}

/*
 */

static const struct hda_device_id snd_hda_id_conexant[] = {
        HDA_CODEC_ENTRY(0x14f12008, "CX8200", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f15045, "CX20549 (Venice)", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f15047, "CX20551 (Waikiki)", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f15051, "CX20561 (Hermosa)", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f15066, "CX20582 (Pebble)", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f15067, "CX20583 (Pebble HSF)", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f15068, "CX20584", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f15069, "CX20585", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f1506c, "CX20588", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f1506e, "CX20590", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f15097, "CX20631", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f15098, "CX20632", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f150a1, "CX20641", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f150a2, "CX20642", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f150ab, "CX20651", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f150ac, "CX20652", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f150b8, "CX20664", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f150b9, "CX20665", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f150f1, "CX21722", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f150f2, "CX20722", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f150f3, "CX21724", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f150f4, "CX20724", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f1510f, "CX20751/2", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f15110, "CX20751/2", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f15111, "CX20753/4", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f15113, "CX20755", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f15114, "CX20756", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f15115, "CX20757", patch_conexant_auto),
        HDA_CODEC_ENTRY(0x14f151d7, "CX20952", patch_conexant_auto),
        {} /* terminator */
};
MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_conexant);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Conexant HD-audio codec");

static struct hda_codec_driver conexant_driver = {
        .id = snd_hda_id_conexant,
};

module_hda_codec_driver(conexant_driver);