hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
linux-sg2042/sound/pci/hda/hda_auto_parser.c

769 lines
21 KiB
C
Raw Blame History

/*
* BIOS auto-parser helper functions for HD-audio
*
* Copyright (c) 2012 Takashi Iwai <tiwai@suse.de>
*
* 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 <linux/sort.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;
}
/* a pair of input pin and its sequence */
struct auto_out_pin {
hda_nid_t pin;
short seq;
};
static int compare_seq(const void *ap, const void *bp)
{
const struct auto_out_pin *a = ap;
const struct auto_out_pin *b = bp;
return (int)(a->seq - b->seq);
}
/*
* Sort an associated group of pins according to their sequence numbers.
* then store it to a pin array.
*/
static void sort_pins_by_sequence(hda_nid_t *pins, struct auto_out_pin *list,
int num_pins)
{
int i;
sort(list, num_pins, sizeof(list[0]), compare_seq, NULL);
for (i = 0; i < num_pins; i++)
pins[i] = list[i].pin;
}
/* 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++;
}
}
static int compare_input_type(const void *ap, const void *bp)
{
const struct auto_pin_cfg_item *a = ap;
const struct auto_pin_cfg_item *b = bp;
return (int)(a->type - b->type);
}
/* 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;
struct auto_out_pin line_out[ARRAY_SIZE(cfg->line_out_pins)];
struct auto_out_pin speaker_out[ARRAY_SIZE(cfg->speaker_pins)];
struct auto_out_pin hp_out[ARRAY_SIZE(cfg->hp_pins)];
int i;
memset(cfg, 0, sizeof(*cfg));
memset(line_out, 0, sizeof(line_out));
memset(speaker_out, 0, sizeof(speaker_out));
memset(hp_out, 0, sizeof(hp_out));
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;
line_out[cfg->line_outs].pin = nid;
line_out[cfg->line_outs].seq = 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;
speaker_out[cfg->speaker_outs].pin = nid;
speaker_out[cfg->speaker_outs].seq = (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;
hp_out[cfg->hp_outs].pin = nid;
hp_out[cfg->hp_outs].seq = (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 ((hp_out[i].seq & 0x0f) == 0x0f) {
i++;
continue;
}
/* Move it to the line-out table */
line_out[cfg->line_outs++] = hp_out[i];
cfg->hp_outs--;
memmove(hp_out + i, hp_out + i + 1,
sizeof(hp_out[0]) * (cfg->hp_outs - i));
}
memset(hp_out + cfg->hp_outs, 0,
sizeof(hp_out[0]) * (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, line_out, cfg->line_outs);
sort_pins_by_sequence(cfg->speaker_pins, speaker_out,
cfg->speaker_outs);
sort_pins_by_sequence(cfg->hp_pins, hp_out, 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 inputs in the order of AUTO_PIN_* type */
sort(cfg->inputs, cfg->num_inputs, sizeof(cfg->inputs[0]),
compare_input_type, NULL);
/*
* 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);
/**
* hda_get_input_pin_label - Give a label for the given input pin
*
* When check_location is true, the function checks the pin location
* for mic and line-in pins, and set an appropriate prefix like "Front",
* "Rear", "Internal".
*/
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;
}
/**
* hda_get_autocfg_input_label - Get a label for the given input
*
* Get a label for the given input pin defined by the autocfg item.
* Unlike hda_get_input_pin_label(), this function checks all inputs
* defined in autocfg and avoids the redundant mic/line prefix as much as
* possible.
*/
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;
}
/**
* snd_hda_get_pin_label - Get a label for the given I/O pin
*
* Get a label for the given pin. This function works for both input and
* output pins. When @cfg is given as non-NULL, the function tries to get
* an optimized label using hda_get_autocfg_input_label().
*
* This function tries to give a unique label string for the pin as much as
* possible. For example, when the multiple line-outs are present, it adds
* the channel suffix like "Front", "Surround", etc (only when @cfg is given).
* If no unique name with a suffix is available and @indexp is non-NULL, the
* index number is stored in the pointer.
*/
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);
Reference in New Issue View Git Blame Copy Permalink