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linuxdebug/sound/pci/hda/hda_auto_parser.c

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null pointer error
2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* BIOS auto-parser helper functions for HD-audio
*
* Copyright (c) 2012 Takashi Iwai <tiwai@suse.de>
*/
#include <linux/slab.h>
#include <linux/export.h>
#include <linux/sort.h>
#include <sound/core.h>
#include <sound/hda_codec.h>
#include "hda_local.h"
#include "hda_auto_parser.h"
/*
* 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 hda_codec *codec, 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->inputs[cfg->num_inputs].has_boost_on_pin =
nid_has_volume(codec, nid, HDA_INPUT);
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;
if (a->type != b->type)
return (int)(a->type - b->type);
/* If has both hs_mic and hp_mic, pick the hs_mic ahead of hp_mic. */
if (a->is_headset_mic && b->is_headphone_mic)
return -1; /* don't swap */
else if (a->is_headphone_mic && b->is_headset_mic)
return 1; /* swap */
/* In case one has boost and the other one has not,
pick the one with boost first. */
return (int)(b->has_boost_on_pin - a->has_boost_on_pin);
}
/* 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)
{
switch (nums) {
case 3:
case 4:
swap(pins[1], pins[2]);
break;
}
}
/* check whether the given pin has a proper pin I/O capability bit */
static bool check_pincap_validity(struct hda_codec *codec, hda_nid_t pin,
unsigned int dev)
{
unsigned int pincap = snd_hda_query_pin_caps(codec, pin);
/* some old hardware don't return the proper pincaps */
if (!pincap)
return true;
switch (dev) {
case AC_JACK_LINE_OUT:
case AC_JACK_SPEAKER:
case AC_JACK_HP_OUT:
case AC_JACK_SPDIF_OUT:
case AC_JACK_DIG_OTHER_OUT:
return !!(pincap & AC_PINCAP_OUT);
default:
return !!(pincap & AC_PINCAP_IN);
}
}
static bool can_be_headset_mic(struct hda_codec *codec,
struct auto_pin_cfg_item *item,
int seq_number)
{
int attr;
unsigned int def_conf;
if (item->type != AUTO_PIN_MIC)
return false;
if (item->is_headset_mic || item->is_headphone_mic)
return false; /* Already assigned */
def_conf = snd_hda_codec_get_pincfg(codec, item->pin);
attr = snd_hda_get_input_pin_attr(def_conf);
if (attr <= INPUT_PIN_ATTR_DOCK)
return false;
if (seq_number >= 0) {
int seq = get_defcfg_sequence(def_conf);
if (seq != seq_number)
return false;
}
return true;
}
/*
* 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;
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;
if (!snd_hda_get_int_hint(codec, "parser_flags", &i))
cond_flags = 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;
for_each_hda_codec_node(nid, codec) {
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 ||
conn == AC_JACK_PORT_BOTH)
dev = AC_JACK_SPEAKER;
}
if (!check_pincap_validity(codec, nid, dev))
continue;
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) {
codec_info(codec,
"ignore pin 0x%x with mismatching assoc# 0x%x vs 0x%x\n",
nid, assoc, assoc_line_out);
continue;
}
if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins)) {
codec_info(codec,
"ignore pin 0x%x, too many assigned pins\n",
nid);
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)) {
codec_info(codec,
"ignore pin 0x%x, too many assigned pins\n",
nid);
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)) {
codec_info(codec,
"ignore pin 0x%x, too many assigned pins\n",
nid);
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(codec, cfg, nid, AUTO_PIN_MIC);
break;
case AC_JACK_LINE_IN:
add_auto_cfg_input_pin(codec, cfg, nid, AUTO_PIN_LINE_IN);
break;
case AC_JACK_CD:
add_auto_cfg_input_pin(codec, cfg, nid, AUTO_PIN_CD);
break;
case AC_JACK_AUX:
add_auto_cfg_input_pin(codec, 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)) {
codec_info(codec,
"ignore pin 0x%x, too many assigned pins\n",
nid);
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;
}
}
/* Find a pin that could be a headset or headphone mic */
if (cond_flags & HDA_PINCFG_HEADSET_MIC || cond_flags & HDA_PINCFG_HEADPHONE_MIC) {
bool hsmic = !!(cond_flags & HDA_PINCFG_HEADSET_MIC);
bool hpmic = !!(cond_flags & HDA_PINCFG_HEADPHONE_MIC);
for (i = 0; (hsmic || hpmic) && (i < cfg->num_inputs); i++)
if (hsmic && can_be_headset_mic(codec, &cfg->inputs[i], 0xc)) {
cfg->inputs[i].is_headset_mic = 1;
hsmic = false;
} else if (hpmic && can_be_headset_mic(codec, &cfg->inputs[i], 0xd)) {
cfg->inputs[i].is_headphone_mic = 1;
hpmic = false;
}
/* If we didn't find our sequence number mark, fall back to any sequence number */
for (i = 0; (hsmic || hpmic) && (i < cfg->num_inputs); i++) {
if (!can_be_headset_mic(codec, &cfg->inputs[i], -1))
continue;
if (hsmic) {
cfg->inputs[i].is_headset_mic = 1;
hsmic = false;
} else if (hpmic) {
cfg->inputs[i].is_headphone_mic = 1;
hpmic = false;
}
}
if (hsmic)
codec_dbg(codec, "Told to look for a headset mic, but didn't find any.\n");
if (hpmic)
codec_dbg(codec, "Told to look for a headphone mic, but didn't find any.\n");
}
/* 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)) {
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
*/
codec_info(codec, "autoconfig for %s: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x) type:%s\n",
codec->core.chip_name, 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"));
codec_info(codec, " 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]);
codec_info(codec, " 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]);
codec_info(codec, " mono: mono_out=0x%x\n", cfg->mono_out_pin);
if (cfg->dig_outs)
codec_info(codec, " dig-out=0x%x/0x%x\n",
cfg->dig_out_pins[0], cfg->dig_out_pins[1]);
codec_info(codec, " inputs:\n");
for (i = 0; i < cfg->num_inputs; i++) {
codec_info(codec, " %s=0x%x\n",
hda_get_autocfg_input_label(codec, cfg, i),
cfg->inputs[i].pin);
}
if (cfg->dig_in_pin)
codec_info(codec, " dig-in=0x%x\n", cfg->dig_in_pin);
return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_parse_pin_defcfg);
/**
* snd_hda_get_input_pin_attr - Get the input pin attribute from pin config
* @def_conf: pin configuration value
*
* Guess the input pin attribute (INPUT_PIN_ATTR_XXX) from the given
* default pin configuration value.
*/
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_GPL(snd_hda_get_input_pin_attr);
/**
* hda_get_input_pin_label - Give a label for the given input pin
* @codec: the HDA codec
* @item: ping config item to refer
* @pin: the pin NID
* @check_location: flag to add the jack location prefix
*
* 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,
const struct auto_pin_cfg_item *item,
hda_nid_t pin, bool check_location)
{
unsigned int def_conf;
static const char * const mic_names[] = {
"Internal Mic", "Dock Mic", "Mic", "Rear Mic", "Front Mic"
};
int attr;
def_conf = snd_hda_codec_get_pincfg(codec, pin);
switch (get_defcfg_device(def_conf)) {
case AC_JACK_MIC_IN:
if (item && item->is_headset_mic)
return "Headset Mic";
if (item && item->is_headphone_mic)
return "Headphone Mic";
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";
case AC_JACK_HP_OUT:
return "Headphone Mic";
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
* @codec: the HDA codec
* @cfg: the parsed pin configuration
* @input: the input index number
*
* 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);
has_multiple_pins |= codec->force_pin_prefix;
return hda_get_input_pin_label(codec, &cfg->inputs[input],
cfg->inputs[input].pin,
has_multiple_pins);
}
EXPORT_SYMBOL_GPL(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)
*indexp = idx;
sfx = "";
}
}
snprintf(label, maxlen, "%s%s%s", pfx, name, sfx);
return 1;
}
#define is_hdmi_cfg(conf) \
(get_defcfg_location(conf) == AC_JACK_LOC_HDMI)
/**
* snd_hda_get_pin_label - Get a label for the given I/O pin
* @codec: the HDA codec
* @nid: pin NID
* @cfg: the parsed pin configuration
* @label: the string buffer to store
* @maxlen: the max length of string buffer (including termination)
* @indexp: the pointer to return the index number (for multiple ctls)
*
* 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;
bool hdmi;
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:
hdmi = is_hdmi_cfg(def_conf);
name = hdmi ? "HDMI" : "SPDIF";
if (cfg && indexp)
for (i = 0; i < cfg->dig_outs; i++) {
hda_nid_t pin = cfg->dig_out_pins[i];
unsigned int c;
if (pin == nid)
break;
c = snd_hda_codec_get_pincfg(codec, pin);
if (hdmi == is_hdmi_cfg(c))
(*indexp)++;
}
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, NULL, nid, true);
break;
}
if (!name)
return 0;
strscpy(label, name, maxlen);
return 1;
}
EXPORT_SYMBOL_GPL(snd_hda_get_pin_label);
/**
* snd_hda_add_verbs - Add verbs to the init list
* @codec: the HDA codec
* @list: zero-terminated verb list to add
*
* Append the given verb list to the execution list. The verbs will be
* performed at init and resume time via snd_hda_apply_verbs().
*/
int snd_hda_add_verbs(struct hda_codec *codec,
const struct hda_verb *list)
{
const struct hda_verb **v;
v = snd_array_new(&codec->verbs);
if (!v)
return -ENOMEM;
*v = list;
return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_add_verbs);
/**
* snd_hda_apply_verbs - Execute the init verb lists
* @codec: the HDA codec
*/
void snd_hda_apply_verbs(struct hda_codec *codec)
{
const struct hda_verb **v;
int i;
snd_array_for_each(&codec->verbs, i, v)
snd_hda_sequence_write(codec, *v);
}
EXPORT_SYMBOL_GPL(snd_hda_apply_verbs);
/**
* snd_hda_apply_pincfgs - Set each pin config in the given list
* @codec: the HDA codec
* @cfg: NULL-terminated pin config table
*/
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_GPL(snd_hda_apply_pincfgs);
static void set_pin_targets(struct hda_codec *codec,
const struct hda_pintbl *cfg)
{
for (; cfg->nid; cfg++)
snd_hda_set_pin_ctl_cache(codec, cfg->nid, cfg->val);
}
void __snd_hda_apply_fixup(struct hda_codec *codec, int id, int action, int depth)
{
const char *modelname = codec->fixup_name;
while (id >= 0) {
const struct hda_fixup *fix = codec->fixup_list + id;
if (++depth > 10)
break;
if (fix->chained_before)
__snd_hda_apply_fixup(codec, fix->chain_id, action, depth + 1);
switch (fix->type) {
case HDA_FIXUP_PINS:
if (action != HDA_FIXUP_ACT_PRE_PROBE || !fix->v.pins)
break;
codec_dbg(codec, "%s: Apply pincfg for %s\n",
codec->core.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;
codec_dbg(codec, "%s: Apply fix-verbs for %s\n",
codec->core.chip_name, modelname);
snd_hda_add_verbs(codec, fix->v.verbs);
break;
case HDA_FIXUP_FUNC:
if (!fix->v.func)
break;
codec_dbg(codec, "%s: Apply fix-func for %s\n",
codec->core.chip_name, modelname);
fix->v.func(codec, fix, action);
break;
case HDA_FIXUP_PINCTLS:
if (action != HDA_FIXUP_ACT_PROBE || !fix->v.pins)
break;
codec_dbg(codec, "%s: Apply pinctl for %s\n",
codec->core.chip_name, modelname);
set_pin_targets(codec, fix->v.pins);
break;
default:
codec_err(codec, "%s: Invalid fixup type %d\n",
codec->core.chip_name, fix->type);
break;
}
if (!fix->chained || fix->chained_before)
break;
id = fix->chain_id;
}
}
EXPORT_SYMBOL_GPL(__snd_hda_apply_fixup);
/**
* snd_hda_apply_fixup - Apply the fixup chain with the given action
* @codec: the HDA codec
* @action: fixup action (HDA_FIXUP_ACT_XXX)
*/
void snd_hda_apply_fixup(struct hda_codec *codec, int action)
{
if (codec->fixup_list)
__snd_hda_apply_fixup(codec, codec->fixup_id, action, 0);
}
EXPORT_SYMBOL_GPL(snd_hda_apply_fixup);
#define IGNORE_SEQ_ASSOC (~(AC_DEFCFG_SEQUENCE | AC_DEFCFG_DEF_ASSOC))
static bool pin_config_match(struct hda_codec *codec,
const struct hda_pintbl *pins,
bool match_all_pins)
{
const struct hda_pincfg *pin;
int i;
snd_array_for_each(&codec->init_pins, i, pin) {
hda_nid_t nid = pin->nid;
u32 cfg = pin->cfg;
const struct hda_pintbl *t_pins;
int found;
t_pins = pins;
found = 0;
for (; t_pins->nid; t_pins++) {
if (t_pins->nid == nid) {
found = 1;
if ((t_pins->val & IGNORE_SEQ_ASSOC) == (cfg & IGNORE_SEQ_ASSOC))
break;
else if ((cfg & 0xf0000000) == 0x40000000 && (t_pins->val & 0xf0000000) == 0x40000000)
break;
else
return false;
}
}
if (match_all_pins &&
!found && (cfg & 0xf0000000) != 0x40000000)
return false;
}
return true;
}
/**
* snd_hda_pick_pin_fixup - Pick up a fixup matching with the pin quirk list
* @codec: the HDA codec
* @pin_quirk: zero-terminated pin quirk list
* @fixlist: the fixup list
* @match_all_pins: all valid pins must match with the table entries
*/
void snd_hda_pick_pin_fixup(struct hda_codec *codec,
const struct snd_hda_pin_quirk *pin_quirk,
const struct hda_fixup *fixlist,
bool match_all_pins)
{
const struct snd_hda_pin_quirk *pq;
if (codec->fixup_id != HDA_FIXUP_ID_NOT_SET)
return;
for (pq = pin_quirk; pq->subvendor; pq++) {
if ((codec->core.subsystem_id & 0xffff0000) != (pq->subvendor << 16))
continue;
if (codec->core.vendor_id != pq->codec)
continue;
if (pin_config_match(codec, pq->pins, match_all_pins)) {
codec->fixup_id = pq->value;
#ifdef CONFIG_SND_DEBUG_VERBOSE
codec->fixup_name = pq->name;
codec_dbg(codec, "%s: picked fixup %s (pin match)\n",
codec->core.chip_name, codec->fixup_name);
#endif
codec->fixup_list = fixlist;
return;
}
}
}
EXPORT_SYMBOL_GPL(snd_hda_pick_pin_fixup);
/**
* snd_hda_pick_fixup - Pick up a fixup matching with PCI/codec SSID or model string
* @codec: the HDA codec
* @models: NULL-terminated model string list
* @quirk: zero-terminated PCI/codec SSID quirk list
* @fixlist: the fixup list
*
* Pick up a fixup entry matching with the given model string or SSID.
* If a fixup was already set beforehand, the function doesn't do anything.
* When a special model string "nofixup" is given, also no fixup is applied.
*
* The function tries to find the matching model name at first, if given.
* If the model string contains the SSID alias, try to look up with the given
* alias ID.
* If nothing matched, try to look up the PCI SSID.
* If still nothing matched, try to look up the codec SSID.
*/
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)
{
const struct snd_pci_quirk *q;
int id = HDA_FIXUP_ID_NOT_SET;
const char *name = NULL;
const char *type = NULL;
unsigned int vendor, device;
if (codec->fixup_id != HDA_FIXUP_ID_NOT_SET)
return;
/* when model=nofixup is given, don't pick up any fixups */
if (codec->modelname && !strcmp(codec->modelname, "nofixup")) {
id = HDA_FIXUP_ID_NO_FIXUP;
fixlist = NULL;
codec_dbg(codec, "%s: picked no fixup (nofixup specified)\n",
codec->core.chip_name);
goto found;
}
/* match with the model name string */
if (codec->modelname && models) {
while (models->name) {
if (!strcmp(codec->modelname, models->name)) {
id = models->id;
name = models->name;
codec_dbg(codec, "%s: picked fixup %s (model specified)\n",
codec->core.chip_name, codec->fixup_name);
goto found;
}
models++;
}
}
if (!quirk)
return;
/* match with the SSID alias given by the model string "XXXX:YYYY" */
if (codec->modelname &&
sscanf(codec->modelname, "%04x:%04x", &vendor, &device) == 2) {
q = snd_pci_quirk_lookup_id(vendor, device, quirk);
if (q) {
type = "alias SSID";
goto found_device;
}
}
/* match with the PCI SSID */
q = snd_pci_quirk_lookup(codec->bus->pci, quirk);
if (q) {
type = "PCI SSID";
goto found_device;
}
/* match with the codec SSID */
q = snd_pci_quirk_lookup_id(codec->core.subsystem_id >> 16,
codec->core.subsystem_id & 0xffff,
quirk);
if (q) {
type = "codec SSID";
goto found_device;
}
return; /* no matching */
found_device:
id = q->value;
#ifdef CONFIG_SND_DEBUG_VERBOSE
name = q->name;
#endif
codec_dbg(codec, "%s: picked fixup %s for %s %04x:%04x\n",
codec->core.chip_name, name ? name : "",
type, q->subvendor, q->subdevice);
found:
codec->fixup_id = id;
codec->fixup_list = fixlist;
codec->fixup_name = name;
}
EXPORT_SYMBOL_GPL(snd_hda_pick_fixup);