hda_auto_parser.c

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/*
 * BIOS auto-parser helper functions for HD-audio
 *
 * Copyright (c) 2012 Takashi Iwai <[email protected]>
 *
 * 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.
 */

#include <linux/slab.h>
#include <linux/export.h>
#include <sound/core.h>
#include "hda_codec.h"
#include "hda_local.h"
#include "hda_auto_parser.h"

#define SFX "hda_codec: "

/*
 * Helper for automatic pin configuration
 */

static int is_in_nid_list(hda_nid_t nid, const hda_nid_t *list)
{
    for (; *list; list++)
        if (*list == nid)
            return 1;
    return 0;
}


/*
 * Sort an associated group of pins according to their sequence numbers.
 */
static void sort_pins_by_sequence(hda_nid_t *pins, short *sequences,
                  int num_pins)
{
    int i, j;
    short seq;
    hda_nid_t nid;

    for (i = 0; i < num_pins; i++) {
        for (j = i + 1; j < num_pins; j++) {
            if (sequences[i] > sequences[j]) {
                seq = sequences[i];
                sequences[i] = sequences[j];
                sequences[j] = seq;
                nid = pins[i];
                pins[i] = pins[j];
                pins[j] = nid;
            }
        }
    }
}


/* add the found input-pin to the cfg->inputs[] table */
static void add_auto_cfg_input_pin(struct auto_pin_cfg *cfg, hda_nid_t nid,
                   int type)
{
    if (cfg->num_inputs < AUTO_CFG_MAX_INS) {
        cfg->inputs[cfg->num_inputs].pin = nid;
        cfg->inputs[cfg->num_inputs].type = type;
        cfg->num_inputs++;
    }
}

/* sort inputs in the order of AUTO_PIN_* type */
static void sort_autocfg_input_pins(struct auto_pin_cfg *cfg)
{
    int i, j;

    for (i = 0; i < cfg->num_inputs; i++) {
        for (j = i + 1; j < cfg->num_inputs; j++) {
            if (cfg->inputs[i].type > cfg->inputs[j].type) {
                struct auto_pin_cfg_item tmp;
                tmp = cfg->inputs[i];
                cfg->inputs[i] = cfg->inputs[j];
                cfg->inputs[j] = tmp;
            }
        }
    }
}

/* Reorder the surround channels
 * ALSA sequence is front/surr/clfe/side
 * HDA sequence is:
 *    4-ch: front/surr  =>  OK as it is
 *    6-ch: front/clfe/surr
 *    8-ch: front/clfe/rear/side|fc
 */
static void reorder_outputs(unsigned int nums, hda_nid_t *pins)
{
    hda_nid_t nid;

    switch (nums) {
    case 3:
    case 4:
        nid = pins[1];
        pins[1] = pins[2];
        pins[2] = nid;
        break;
    }
}

/*
 * Parse all pin widgets and store the useful pin nids to cfg
 *
 * The number of line-outs or any primary output is stored in line_outs,
 * and the corresponding output pins are assigned to line_out_pins[],
 * in the order of front, rear, CLFE, side, ...
 *
 * If more extra outputs (speaker and headphone) are found, the pins are
 * assisnged to hp_pins[] and speaker_pins[], respectively.  If no line-out jack
 * is detected, one of speaker of HP pins is assigned as the primary
 * output, i.e. to line_out_pins[0].  So, line_outs is always positive
 * if any analog output exists.
 *
 * The analog input pins are assigned to inputs array.
 * The digital input/output pins are assigned to dig_in_pin and dig_out_pin,
 * respectively.
 */
int snd_hda_parse_pin_defcfg(struct hda_codec *codec,
                 struct auto_pin_cfg *cfg,
                 const hda_nid_t *ignore_nids,
                 unsigned int cond_flags)
{
    hda_nid_t nid, end_nid;
    short seq, assoc_line_out;
    short sequences_line_out[ARRAY_SIZE(cfg->line_out_pins)];
    short sequences_speaker[ARRAY_SIZE(cfg->speaker_pins)];
    short sequences_hp[ARRAY_SIZE(cfg->hp_pins)];
    int i;

    memset(cfg, 0, sizeof(*cfg));

    memset(sequences_line_out, 0, sizeof(sequences_line_out));
    memset(sequences_speaker, 0, sizeof(sequences_speaker));
    memset(sequences_hp, 0, sizeof(sequences_hp));
    assoc_line_out = 0;

    end_nid = codec->start_nid + codec->num_nodes;
    for (nid = codec->start_nid; nid < end_nid; nid++) {
        unsigned int wid_caps = get_wcaps(codec, nid);
        unsigned int wid_type = get_wcaps_type(wid_caps);
        unsigned int def_conf;
        short assoc, loc, conn, dev;

        /* read all default configuration for pin complex */
        if (wid_type != AC_WID_PIN)
            continue;
        /* ignore the given nids (e.g. pc-beep returns error) */
        if (ignore_nids && is_in_nid_list(nid, ignore_nids))
            continue;

        def_conf = snd_hda_codec_get_pincfg(codec, nid);
        conn = get_defcfg_connect(def_conf);
        if (conn == AC_JACK_PORT_NONE)
            continue;
        loc = get_defcfg_location(def_conf);
        dev = get_defcfg_device(def_conf);

        /* workaround for buggy BIOS setups */
        if (dev == AC_JACK_LINE_OUT) {
            if (conn == AC_JACK_PORT_FIXED)
                dev = AC_JACK_SPEAKER;
        }

        switch (dev) {
        case AC_JACK_LINE_OUT:
            seq = get_defcfg_sequence(def_conf);
            assoc = get_defcfg_association(def_conf);

            if (!(wid_caps & AC_WCAP_STEREO))
                if (!cfg->mono_out_pin)
                    cfg->mono_out_pin = nid;
            if (!assoc)
                continue;
            if (!assoc_line_out)
                assoc_line_out = assoc;
            else if (assoc_line_out != assoc)
                continue;
            if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
                continue;
            cfg->line_out_pins[cfg->line_outs] = nid;
            sequences_line_out[cfg->line_outs] = seq;
            cfg->line_outs++;
            break;
        case AC_JACK_SPEAKER:
            seq = get_defcfg_sequence(def_conf);
            assoc = get_defcfg_association(def_conf);
            if (cfg->speaker_outs >= ARRAY_SIZE(cfg->speaker_pins))
                continue;
            cfg->speaker_pins[cfg->speaker_outs] = nid;
            sequences_speaker[cfg->speaker_outs] = (assoc << 4) | seq;
            cfg->speaker_outs++;
            break;
        case AC_JACK_HP_OUT:
            seq = get_defcfg_sequence(def_conf);
            assoc = get_defcfg_association(def_conf);
            if (cfg->hp_outs >= ARRAY_SIZE(cfg->hp_pins))
                continue;
            cfg->hp_pins[cfg->hp_outs] = nid;
            sequences_hp[cfg->hp_outs] = (assoc << 4) | seq;
            cfg->hp_outs++;
            break;
        case AC_JACK_MIC_IN:
            add_auto_cfg_input_pin(cfg, nid, AUTO_PIN_MIC);
            break;
        case AC_JACK_LINE_IN:
            add_auto_cfg_input_pin(cfg, nid, AUTO_PIN_LINE_IN);
            break;
        case AC_JACK_CD:
            add_auto_cfg_input_pin(cfg, nid, AUTO_PIN_CD);
            break;
        case AC_JACK_AUX:
            add_auto_cfg_input_pin(cfg, nid, AUTO_PIN_AUX);
            break;
        case AC_JACK_SPDIF_OUT:
        case AC_JACK_DIG_OTHER_OUT:
            if (cfg->dig_outs >= ARRAY_SIZE(cfg->dig_out_pins))
                continue;
            cfg->dig_out_pins[cfg->dig_outs] = nid;
            cfg->dig_out_type[cfg->dig_outs] =
                (loc == AC_JACK_LOC_HDMI) ?
                HDA_PCM_TYPE_HDMI : HDA_PCM_TYPE_SPDIF;
            cfg->dig_outs++;
            break;
        case AC_JACK_SPDIF_IN:
        case AC_JACK_DIG_OTHER_IN:
            cfg->dig_in_pin = nid;
            if (loc == AC_JACK_LOC_HDMI)
                cfg->dig_in_type = HDA_PCM_TYPE_HDMI;
            else
                cfg->dig_in_type = HDA_PCM_TYPE_SPDIF;
            break;
        }
    }

    /* FIX-UP:
     * If no line-out is defined but multiple HPs are found,
     * some of them might be the real line-outs.
     */
    if (!cfg->line_outs && cfg->hp_outs > 1 &&
        !(cond_flags & HDA_PINCFG_NO_HP_FIXUP)) {
        int i = 0;
        while (i < cfg->hp_outs) {
            /* The real HPs should have the sequence 0x0f */
            if ((sequences_hp[i] & 0x0f) == 0x0f) {
                i++;
                continue;
            }
            /* Move it to the line-out table */
            cfg->line_out_pins[cfg->line_outs] = cfg->hp_pins[i];
            sequences_line_out[cfg->line_outs] = sequences_hp[i];
            cfg->line_outs++;
            cfg->hp_outs--;
            memmove(cfg->hp_pins + i, cfg->hp_pins + i + 1,
                sizeof(cfg->hp_pins[0]) * (cfg->hp_outs - i));
            memmove(sequences_hp + i, sequences_hp + i + 1,
                sizeof(sequences_hp[0]) * (cfg->hp_outs - i));
        }
        memset(cfg->hp_pins + cfg->hp_outs, 0,
               sizeof(hda_nid_t) * (AUTO_CFG_MAX_OUTS - cfg->hp_outs));
        if (!cfg->hp_outs)
            cfg->line_out_type = AUTO_PIN_HP_OUT;

    }

    /* sort by sequence */
    sort_pins_by_sequence(cfg->line_out_pins, sequences_line_out,
                  cfg->line_outs);
    sort_pins_by_sequence(cfg->speaker_pins, sequences_speaker,
                  cfg->speaker_outs);
    sort_pins_by_sequence(cfg->hp_pins, sequences_hp,
                  cfg->hp_outs);

    /*
     * FIX-UP: if no line-outs are detected, try to use speaker or HP pin
     * as a primary output
     */
    if (!cfg->line_outs &&
        !(cond_flags & HDA_PINCFG_NO_LO_FIXUP)) {
        if (cfg->speaker_outs) {
            cfg->line_outs = cfg->speaker_outs;
            memcpy(cfg->line_out_pins, cfg->speaker_pins,
                   sizeof(cfg->speaker_pins));
            cfg->speaker_outs = 0;
            memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
            cfg->line_out_type = AUTO_PIN_SPEAKER_OUT;
        } else if (cfg->hp_outs) {
            cfg->line_outs = cfg->hp_outs;
            memcpy(cfg->line_out_pins, cfg->hp_pins,
                   sizeof(cfg->hp_pins));
            cfg->hp_outs = 0;
            memset(cfg->hp_pins, 0, sizeof(cfg->hp_pins));
            cfg->line_out_type = AUTO_PIN_HP_OUT;
        }
    }

    reorder_outputs(cfg->line_outs, cfg->line_out_pins);
    reorder_outputs(cfg->hp_outs, cfg->hp_pins);
    reorder_outputs(cfg->speaker_outs, cfg->speaker_pins);

    sort_autocfg_input_pins(cfg);

    /*
     * debug prints of the parsed results
     */
    snd_printd("autoconfig: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x) type:%s\n",
           cfg->line_outs, cfg->line_out_pins[0], cfg->line_out_pins[1],
           cfg->line_out_pins[2], cfg->line_out_pins[3],
           cfg->line_out_pins[4],
           cfg->line_out_type == AUTO_PIN_HP_OUT ? "hp" :
           (cfg->line_out_type == AUTO_PIN_SPEAKER_OUT ?
            "speaker" : "line"));
    snd_printd("   speaker_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
           cfg->speaker_outs, cfg->speaker_pins[0],
           cfg->speaker_pins[1], cfg->speaker_pins[2],
           cfg->speaker_pins[3], cfg->speaker_pins[4]);
    snd_printd("   hp_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
           cfg->hp_outs, cfg->hp_pins[0],
           cfg->hp_pins[1], cfg->hp_pins[2],
           cfg->hp_pins[3], cfg->hp_pins[4]);
    snd_printd("   mono: mono_out=0x%x\n", cfg->mono_out_pin);
    if (cfg->dig_outs)
        snd_printd("   dig-out=0x%x/0x%x\n",
               cfg->dig_out_pins[0], cfg->dig_out_pins[1]);
    snd_printd("   inputs:\n");
    for (i = 0; i < cfg->num_inputs; i++) {
        snd_printd("     %s=0x%x\n",
                hda_get_autocfg_input_label(codec, cfg, i),
                cfg->inputs[i].pin);
    }
    if (cfg->dig_in_pin)
        snd_printd("   dig-in=0x%x\n", cfg->dig_in_pin);

    return 0;
}
EXPORT_SYMBOL_HDA(snd_hda_parse_pin_defcfg);

int snd_hda_get_input_pin_attr(unsigned int def_conf)
{
    unsigned int loc = get_defcfg_location(def_conf);
    unsigned int conn = get_defcfg_connect(def_conf);
    if (conn == AC_JACK_PORT_NONE)
        return INPUT_PIN_ATTR_UNUSED;
    /* Windows may claim the internal mic to be BOTH, too */
    if (conn == AC_JACK_PORT_FIXED || conn == AC_JACK_PORT_BOTH)
        return INPUT_PIN_ATTR_INT;
    if ((loc & 0x30) == AC_JACK_LOC_INTERNAL)
        return INPUT_PIN_ATTR_INT;
    if ((loc & 0x30) == AC_JACK_LOC_SEPARATE)
        return INPUT_PIN_ATTR_DOCK;
    if (loc == AC_JACK_LOC_REAR)
        return INPUT_PIN_ATTR_REAR;
    if (loc == AC_JACK_LOC_FRONT)
        return INPUT_PIN_ATTR_FRONT;
    return INPUT_PIN_ATTR_NORMAL;
}
EXPORT_SYMBOL_HDA(snd_hda_get_input_pin_attr);

static const char *hda_get_input_pin_label(struct hda_codec *codec,
                       hda_nid_t pin, bool check_location)
{
    unsigned int def_conf;
    static const char * const mic_names[] = {
        "Internal Mic", "Dock Mic", "Mic", "Front Mic", "Rear Mic",
    };
    int attr;

    def_conf = snd_hda_codec_get_pincfg(codec, pin);

    switch (get_defcfg_device(def_conf)) {
    case AC_JACK_MIC_IN:
        if (!check_location)
            return "Mic";
        attr = snd_hda_get_input_pin_attr(def_conf);
        if (!attr)
            return "None";
        return mic_names[attr - 1];
    case AC_JACK_LINE_IN:
        if (!check_location)
            return "Line";
        attr = snd_hda_get_input_pin_attr(def_conf);
        if (!attr)
            return "None";
        if (attr == INPUT_PIN_ATTR_DOCK)
            return "Dock Line";
        return "Line";
    case AC_JACK_AUX:
        return "Aux";
    case AC_JACK_CD:
        return "CD";
    case AC_JACK_SPDIF_IN:
        return "SPDIF In";
    case AC_JACK_DIG_OTHER_IN:
        return "Digital In";
    default:
        return "Misc";
    }
}

/* Check whether the location prefix needs to be added to the label.
 * If all mic-jacks are in the same location (e.g. rear panel), we don't
 * have to put "Front" prefix to each label.  In such a case, returns false.
 */
static int check_mic_location_need(struct hda_codec *codec,
                   const struct auto_pin_cfg *cfg,
                   int input)
{
    unsigned int defc;
    int i, attr, attr2;

    defc = snd_hda_codec_get_pincfg(codec, cfg->inputs[input].pin);
    attr = snd_hda_get_input_pin_attr(defc);
    /* for internal or docking mics, we need locations */
    if (attr <= INPUT_PIN_ATTR_NORMAL)
        return 1;

    attr = 0;
    for (i = 0; i < cfg->num_inputs; i++) {
        defc = snd_hda_codec_get_pincfg(codec, cfg->inputs[i].pin);
        attr2 = snd_hda_get_input_pin_attr(defc);
        if (attr2 >= INPUT_PIN_ATTR_NORMAL) {
            if (attr && attr != attr2)
                return 1; /* different locations found */
            attr = attr2;
        }
    }
    return 0;
}

const char *hda_get_autocfg_input_label(struct hda_codec *codec,
                    const struct auto_pin_cfg *cfg,
                    int input)
{
    int type = cfg->inputs[input].type;
    int has_multiple_pins = 0;

    if ((input > 0 && cfg->inputs[input - 1].type == type) ||
        (input < cfg->num_inputs - 1 && cfg->inputs[input + 1].type == type))
        has_multiple_pins = 1;
    if (has_multiple_pins && type == AUTO_PIN_MIC)
        has_multiple_pins &= check_mic_location_need(codec, cfg, input);
    return hda_get_input_pin_label(codec, cfg->inputs[input].pin,
                       has_multiple_pins);
}
EXPORT_SYMBOL_HDA(hda_get_autocfg_input_label);

/* return the position of NID in the list, or -1 if not found */
static int find_idx_in_nid_list(hda_nid_t nid, const hda_nid_t *list, int nums)
{
    int i;
    for (i = 0; i < nums; i++)
        if (list[i] == nid)
            return i;
    return -1;
}

/* get a unique suffix or an index number */
static const char *check_output_sfx(hda_nid_t nid, const hda_nid_t *pins,
                    int num_pins, int *indexp)
{
    static const char * const channel_sfx[] = {
        " Front", " Surround", " CLFE", " Side"
    };
    int i;

    i = find_idx_in_nid_list(nid, pins, num_pins);
    if (i < 0)
        return NULL;
    if (num_pins == 1)
        return "";
    if (num_pins > ARRAY_SIZE(channel_sfx)) {
        if (indexp)
            *indexp = i;
        return "";
    }
    return channel_sfx[i];
}

static const char *check_output_pfx(struct hda_codec *codec, hda_nid_t nid)
{
    unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid);
    int attr = snd_hda_get_input_pin_attr(def_conf);

    /* check the location */
    switch (attr) {
    case INPUT_PIN_ATTR_DOCK:
        return "Dock ";
    case INPUT_PIN_ATTR_FRONT:
        return "Front ";
    }
    return "";
}

static int get_hp_label_index(struct hda_codec *codec, hda_nid_t nid,
                  const hda_nid_t *pins, int num_pins)
{
    int i, j, idx = 0;

    const char *pfx = check_output_pfx(codec, nid);

    i = find_idx_in_nid_list(nid, pins, num_pins);
    if (i < 0)
        return -1;
    for (j = 0; j < i; j++)
        if (pfx == check_output_pfx(codec, pins[j]))
            idx++;

    return idx;
}

static int fill_audio_out_name(struct hda_codec *codec, hda_nid_t nid,
                   const struct auto_pin_cfg *cfg,
                   const char *name, char *label, int maxlen,
                   int *indexp)
{
    unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid);
    int attr = snd_hda_get_input_pin_attr(def_conf);
    const char *pfx, *sfx = "";

    /* handle as a speaker if it's a fixed line-out */
    if (!strcmp(name, "Line Out") && attr == INPUT_PIN_ATTR_INT)
        name = "Speaker";
    pfx = check_output_pfx(codec, nid);

    if (cfg) {
        /* try to give a unique suffix if needed */
        sfx = check_output_sfx(nid, cfg->line_out_pins, cfg->line_outs,
                       indexp);
        if (!sfx)
            sfx = check_output_sfx(nid, cfg->speaker_pins, cfg->speaker_outs,
                           indexp);
        if (!sfx) {
            /* don't add channel suffix for Headphone controls */
            int idx = get_hp_label_index(codec, nid, cfg->hp_pins,
                             cfg->hp_outs);
            if (idx >= 0)
                *indexp = idx;
            sfx = "";
        }
    }
    snprintf(label, maxlen, "%s%s%s", pfx, name, sfx);
    return 1;
}

int snd_hda_get_pin_label(struct hda_codec *codec, hda_nid_t nid,
              const struct auto_pin_cfg *cfg,
              char *label, int maxlen, int *indexp)
{
    unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid);
    const char *name = NULL;
    int i;

    if (indexp)
        *indexp = 0;
    if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
        return 0;

    switch (get_defcfg_device(def_conf)) {
    case AC_JACK_LINE_OUT:
        return fill_audio_out_name(codec, nid, cfg, "Line Out",
                       label, maxlen, indexp);
    case AC_JACK_SPEAKER:
        return fill_audio_out_name(codec, nid, cfg, "Speaker",
                       label, maxlen, indexp);
    case AC_JACK_HP_OUT:
        return fill_audio_out_name(codec, nid, cfg, "Headphone",
                       label, maxlen, indexp);
    case AC_JACK_SPDIF_OUT:
    case AC_JACK_DIG_OTHER_OUT:
        if (get_defcfg_location(def_conf) == AC_JACK_LOC_HDMI)
            name = "HDMI";
        else
            name = "SPDIF";
        if (cfg && indexp) {
            i = find_idx_in_nid_list(nid, cfg->dig_out_pins,
                         cfg->dig_outs);
            if (i >= 0)
                *indexp = i;
        }
        break;
    default:
        if (cfg) {
            for (i = 0; i < cfg->num_inputs; i++) {
                if (cfg->inputs[i].pin != nid)
                    continue;
                name = hda_get_autocfg_input_label(codec, cfg, i);
                if (name)
                    break;
            }
        }
        if (!name)
            name = hda_get_input_pin_label(codec, nid, true);
        break;
    }
    if (!name)
        return 0;
    strlcpy(label, name, maxlen);
    return 1;
}
EXPORT_SYMBOL_HDA(snd_hda_get_pin_label);

int snd_hda_gen_add_verbs(struct hda_gen_spec *spec,
              const struct hda_verb *list)
{
    const struct hda_verb **v;
    v = snd_array_new(&spec->verbs);
    if (!v)
        return -ENOMEM;
    *v = list;
    return 0;
}
EXPORT_SYMBOL_HDA(snd_hda_gen_add_verbs);

void snd_hda_gen_apply_verbs(struct hda_codec *codec)
{
    struct hda_gen_spec *spec = codec->spec;
    int i;
    for (i = 0; i < spec->verbs.used; i++) {
        struct hda_verb **v = snd_array_elem(&spec->verbs, i);
        snd_hda_sequence_write(codec, *v);
    }
}
EXPORT_SYMBOL_HDA(snd_hda_gen_apply_verbs);

void snd_hda_apply_pincfgs(struct hda_codec *codec,
               const struct hda_pintbl *cfg)
{
    for (; cfg->nid; cfg++)
        snd_hda_codec_set_pincfg(codec, cfg->nid, cfg->val);
}
EXPORT_SYMBOL_HDA(snd_hda_apply_pincfgs);

void snd_hda_apply_fixup(struct hda_codec *codec, int action)
{
    struct hda_gen_spec *spec = codec->spec;
    int id = spec->fixup_id;
#ifdef CONFIG_SND_DEBUG_VERBOSE
    const char *modelname = spec->fixup_name;
#endif
    int depth = 0;

    if (!spec->fixup_list)
        return;

    while (id >= 0) {
        const struct hda_fixup *fix = spec->fixup_list + id;

        switch (fix->type) {
        case HDA_FIXUP_PINS:
            if (action != HDA_FIXUP_ACT_PRE_PROBE || !fix->v.pins)
                break;
            snd_printdd(KERN_INFO SFX
                    "%s: Apply pincfg for %s\n",
                    codec->chip_name, modelname);
            snd_hda_apply_pincfgs(codec, fix->v.pins);
            break;
        case HDA_FIXUP_VERBS:
            if (action != HDA_FIXUP_ACT_PROBE || !fix->v.verbs)
                break;
            snd_printdd(KERN_INFO SFX
                    "%s: Apply fix-verbs for %s\n",
                    codec->chip_name, modelname);
            snd_hda_gen_add_verbs(codec->spec, fix->v.verbs);
            break;
        case HDA_FIXUP_FUNC:
            if (!fix->v.func)
                break;
            snd_printdd(KERN_INFO SFX
                    "%s: Apply fix-func for %s\n",
                    codec->chip_name, modelname);
            fix->v.func(codec, fix, action);
            break;
        default:
            snd_printk(KERN_ERR SFX
                   "%s: Invalid fixup type %d\n",
                   codec->chip_name, fix->type);
            break;
        }
        if (!fix->chained)
            break;
        if (++depth > 10)
            break;
        id = fix->chain_id;
    }
}
EXPORT_SYMBOL_HDA(snd_hda_apply_fixup);

void snd_hda_pick_fixup(struct hda_codec *codec,
            const struct hda_model_fixup *models,
            const struct snd_pci_quirk *quirk,
            const struct hda_fixup *fixlist)
{
    struct hda_gen_spec *spec = codec->spec;
    const struct snd_pci_quirk *q;
    int id = -1;
    const char *name = NULL;

    /* when model=nofixup is given, don't pick up any fixups */
    if (codec->modelname && !strcmp(codec->modelname, "nofixup")) {
        spec->fixup_list = NULL;
        spec->fixup_id = -1;
        return;
    }

    if (codec->modelname && models) {
        while (models->name) {
            if (!strcmp(codec->modelname, models->name)) {
                id = models->id;
                name = models->name;
                break;
            }
            models++;
        }
    }
    if (id < 0 && quirk) {
        q = snd_pci_quirk_lookup(codec->bus->pci, quirk);
        if (q) {
            id = q->value;
#ifdef CONFIG_SND_DEBUG_VERBOSE
            name = q->name;
#endif
        }
    }
    if (id < 0 && quirk) {
        for (q = quirk; q->subvendor; q++) {
            unsigned int vendorid =
                q->subdevice | (q->subvendor << 16);
            unsigned int mask = 0xffff0000 | q->subdevice_mask;
            if ((codec->subsystem_id & mask) == (vendorid & mask)) {
                id = q->value;
#ifdef CONFIG_SND_DEBUG_VERBOSE
                name = q->name;
#endif
                break;
            }
        }
    }

    spec->fixup_id = id;
    if (id >= 0) {
        spec->fixup_list = fixlist;
        spec->fixup_name = name;
    }
}
EXPORT_SYMBOL_HDA(snd_hda_pick_fixup);