Release 4.7 sound/pci/hda/hda_codec.c

Directory: sound/pci/hda
/*
 * Universal Interface for Intel High Definition Audio Codec
 *
 * Copyright (c) 2004 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.
 *
 *  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/mm.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/module.h>
#include <linux/async.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <sound/core.h>
#include "hda_codec.h"
#include <sound/asoundef.h>
#include <sound/tlv.h>
#include <sound/initval.h>
#include <sound/jack.h>
#include "hda_local.h"
#include "hda_beep.h"
#include "hda_jack.h"
#include <sound/hda_hwdep.h>

#ifdef CONFIG_PM

#define codec_in_pm(codec)	atomic_read(&(codec)->core.in_pm)

#define hda_codec_is_power_on(codec) \
	(!pm_runtime_suspended(hda_codec_dev(codec)))
#else

#define codec_in_pm(codec)	0

#define hda_codec_is_power_on(codec)	1
#endif


#define codec_has_epss(codec) \
	((codec)->core.power_caps & AC_PWRST_EPSS)

#define codec_has_clkstop(codec) \
	((codec)->core.power_caps & AC_PWRST_CLKSTOP)

/*
 * Send and receive a verb - passed to exec_verb override for hdac_device
 */


static int codec_exec_verb(struct hdac_device *dev, unsigned int cmd,
			   unsigned int flags, unsigned int *res)
{
	struct hda_codec *codec = container_of(dev, struct hda_codec, core);
	struct hda_bus *bus = codec->bus;
	int err;

	if (cmd == ~0)
		return -1;

 again:
	snd_hda_power_up_pm(codec);
	mutex_lock(&bus->core.cmd_mutex);
	if (flags & HDA_RW_NO_RESPONSE_FALLBACK)
		bus->no_response_fallback = 1;
	err = snd_hdac_bus_exec_verb_unlocked(&bus->core, codec->core.addr,
					      cmd, res);
	bus->no_response_fallback = 0;
	mutex_unlock(&bus->core.cmd_mutex);
	snd_hda_power_down_pm(codec);
	if (!codec_in_pm(codec) && res && err == -EAGAIN) {
		if (bus->response_reset) {
			codec_dbg(codec,
				  "resetting BUS due to fatal communication error\n");
			snd_hda_bus_reset(bus);
		}
		goto again;
	}
	/* clear reset-flag when the communication gets recovered */
	if (!err || codec_in_pm(codec))
		bus->response_reset = 0;
	return err;
}

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/**
 * snd_hda_sequence_write - sequence writes
 * @codec: the HDA codec
 * @seq: VERB array to send
 *
 * Send the commands sequentially from the given array.
 * The array must be terminated with NID=0.
 */


void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
{
	for (; seq->nid; seq++)
		snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
}
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EXPORT_SYMBOL_GPL(snd_hda_sequence_write);

/* connection list element */

struct hda_conn_list {
	
struct list_head list;
	
int len;
	
hda_nid_t nid;
	
hda_nid_t conns[0];
};

/* look up the cached results */

static struct hda_conn_list *

lookup_conn_list(struct hda_codec *codec, hda_nid_t nid)
{
	struct hda_conn_list *p;
	list_for_each_entry(p, &codec->conn_list, list) {
		if (p->nid == nid)
			return p;
	}
	return NULL;
}

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static int add_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
			 const hda_nid_t *list)
{
	struct hda_conn_list *p;

	p = kmalloc(sizeof(*p) + len * sizeof(hda_nid_t), GFP_KERNEL);
	if (!p)
		return -ENOMEM;
	p->len = len;
	p->nid = nid;
	memcpy(p->conns, list, len * sizeof(hda_nid_t));
	list_add(&p->list, &codec->conn_list);
	return 0;
}

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static void remove_conn_list(struct hda_codec *codec)
{
	while (!list_empty(&codec->conn_list)) {
		struct hda_conn_list *p;
		p = list_first_entry(&codec->conn_list, typeof(*p), list);
		list_del(&p->list);
		kfree(p);
	}
}

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/* read the connection and add to the cache */


static int read_and_add_raw_conns(struct hda_codec *codec, hda_nid_t nid)
{
	hda_nid_t list[32];
	hda_nid_t *result = list;
	int len;

	len = snd_hda_get_raw_connections(codec, nid, list, ARRAY_SIZE(list));
	if (len == -ENOSPC) {
		len = snd_hda_get_num_raw_conns(codec, nid);
		result = kmalloc(sizeof(hda_nid_t) * len, GFP_KERNEL);
		if (!result)
			return -ENOMEM;
		len = snd_hda_get_raw_connections(codec, nid, result, len);
	}
	if (len >= 0)
		len = snd_hda_override_conn_list(codec, nid, len, result);
	if (result != list)
		kfree(result);
	return len;
}

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/**
 * snd_hda_get_conn_list - get connection list
 * @codec: the HDA codec
 * @nid: NID to parse
 * @listp: the pointer to store NID list
 *
 * Parses the connection list of the given widget and stores the pointer
 * to the list of NIDs.
 *
 * Returns the number of connections, or a negative error code.
 *
 * Note that the returned pointer isn't protected against the list
 * modification.  If snd_hda_override_conn_list() might be called
 * concurrently, protect with a mutex appropriately.
 */


int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
			  const hda_nid_t **listp)
{
	bool added = false;

	for (;;) {
		int err;
		const struct hda_conn_list *p;

		/* if the connection-list is already cached, read it */
		p = lookup_conn_list(codec, nid);
		if (p) {
			if (listp)
				*listp = p->conns;
			return p->len;
		}
		if (snd_BUG_ON(added))
			return -EINVAL;

		err = read_and_add_raw_conns(codec, nid);
		if (err < 0)
			return err;
		added = true;
	}
}
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EXPORT_SYMBOL_GPL(snd_hda_get_conn_list);

/**
 * snd_hda_get_connections - copy connection list
 * @codec: the HDA codec
 * @nid: NID to parse
 * @conn_list: connection list array; when NULL, checks only the size
 * @max_conns: max. number of connections to store
 *
 * Parses the connection list of the given widget and stores the list
 * of NIDs.
 *
 * Returns the number of connections, or a negative error code.
 */


int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
			    hda_nid_t *conn_list, int max_conns)
{
	const hda_nid_t *list;
	int len = snd_hda_get_conn_list(codec, nid, &list);

	if (len > 0 && conn_list) {
		if (len > max_conns) {
			codec_err(codec, "Too many connections %d for NID 0x%x\n",
				   len, nid);
			return -EINVAL;
		}
		memcpy(conn_list, list, len * sizeof(hda_nid_t));
	}

	return len;
}
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EXPORT_SYMBOL_GPL(snd_hda_get_connections);

/**
 * snd_hda_override_conn_list - add/modify the connection-list to cache
 * @codec: the HDA codec
 * @nid: NID to parse
 * @len: number of connection list entries
 * @list: the list of connection entries
 *
 * Add or modify the given connection-list to the cache.  If the corresponding
 * cache already exists, invalidate it and append a new one.
 *
 * Returns zero or a negative error code.
 */


int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
			       const hda_nid_t *list)
{
	struct hda_conn_list *p;

	p = lookup_conn_list(codec, nid);
	if (p) {
		list_del(&p->list);
		kfree(p);
	}

	return add_conn_list(codec, nid, len, list);
}
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EXPORT_SYMBOL_GPL(snd_hda_override_conn_list);

/**
 * snd_hda_get_conn_index - get the connection index of the given NID
 * @codec: the HDA codec
 * @mux: NID containing the list
 * @nid: NID to select
 * @recursive: 1 when searching NID recursively, otherwise 0
 *
 * Parses the connection list of the widget @mux and checks whether the
 * widget @nid is present.  If it is, return the connection index.
 * Otherwise it returns -1.
 */


int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
			   hda_nid_t nid, int recursive)
{
	const hda_nid_t *conn;
	int i, nums;

	nums = snd_hda_get_conn_list(codec, mux, &conn);
	for (i = 0; i < nums; i++)
		if (conn[i] == nid)
			return i;
	if (!recursive)
		return -1;
	if (recursive > 10) {
		codec_dbg(codec, "too deep connection for 0x%x\n", nid);
		return -1;
	}
	recursive++;
	for (i = 0; i < nums; i++) {
		unsigned int type = get_wcaps_type(get_wcaps(codec, conn[i]));
		if (type == AC_WID_PIN || type == AC_WID_AUD_OUT)
			continue;
		if (snd_hda_get_conn_index(codec, conn[i], nid, recursive) >= 0)
			return i;
	}
	return -1;
}
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EXPORT_SYMBOL_GPL(snd_hda_get_conn_index);


/* return DEVLIST_LEN parameter of the given widget */


static unsigned int get_num_devices(struct hda_codec *codec, hda_nid_t nid)
{
	unsigned int wcaps = get_wcaps(codec, nid);
	unsigned int parm;

	if (!codec->dp_mst || !(wcaps & AC_WCAP_DIGITAL) ||
	    get_wcaps_type(wcaps) != AC_WID_PIN)
		return 0;

	parm = snd_hdac_read_parm_uncached(&codec->core, nid, AC_PAR_DEVLIST_LEN);
	if (parm == -1)
		parm = 0;
	return parm & AC_DEV_LIST_LEN_MASK;
}

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/**
 * snd_hda_get_devices - copy device list without cache
 * @codec: the HDA codec
 * @nid: NID of the pin to parse
 * @dev_list: device list array
 * @max_devices: max. number of devices to store
 *
 * Copy the device list. This info is dynamic and so not cached.
 * Currently called only from hda_proc.c, so not exported.
 */


int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
			u8 *dev_list, int max_devices)
{
	unsigned int parm;
	int i, dev_len, devices;

	parm = get_num_devices(codec, nid);
	if (!parm)	/* not multi-stream capable */
		return 0;

	dev_len = parm + 1;
	dev_len = dev_len < max_devices ? dev_len : max_devices;

	devices = 0;
	while (devices < dev_len) {
		if (snd_hdac_read(&codec->core, nid,
				  AC_VERB_GET_DEVICE_LIST, devices, &parm))
			break; /* error */

		for (i = 0; i < 8; i++) {
			dev_list[devices] = (u8)parm;
			parm >>= 4;
			devices++;
			if (devices >= dev_len)
				break;
		}
	}
	return devices;
}

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/*
 * read widget caps for each widget and store in cache
 */


static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
{
	int i;
	hda_nid_t nid;

	codec->wcaps = kmalloc(codec->core.num_nodes * 4, GFP_KERNEL);
	if (!codec->wcaps)
		return -ENOMEM;
	nid = codec->core.start_nid;
	for (i = 0; i < codec->core.num_nodes; i++, nid++)
		codec->wcaps[i] = snd_hdac_read_parm_uncached(&codec->core,
					nid, AC_PAR_AUDIO_WIDGET_CAP);
	return 0;
}

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/* read all pin default configurations and save codec->init_pins */


static int read_pin_defaults(struct hda_codec *codec)
{
	hda_nid_t nid;

	for_each_hda_codec_node(nid, codec) {
		struct hda_pincfg *pin;
		unsigned int wcaps = get_wcaps(codec, nid);
		unsigned int wid_type = get_wcaps_type(wcaps);
		if (wid_type != AC_WID_PIN)
			continue;
		pin = snd_array_new(&codec->init_pins);
		if (!pin)
			return -ENOMEM;
		pin->nid = nid;
		pin->cfg = snd_hda_codec_read(codec, nid, 0,
					      AC_VERB_GET_CONFIG_DEFAULT, 0);
		pin->ctrl = snd_hda_codec_read(codec, nid, 0,
					       AC_VERB_GET_PIN_WIDGET_CONTROL,
					       0);
	}
	return 0;
}

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/* look up the given pin config list and return the item matching with NID */


static struct hda_pincfg *look_up_pincfg(struct hda_codec *codec,
					 struct snd_array *array,
					 hda_nid_t nid)
{
	int i;
	for (i = 0; i < array->used; i++) {
		struct hda_pincfg *pin = snd_array_elem(array, i);
		if (pin->nid == nid)
			return pin;
	}
	return NULL;
}

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/* set the current pin config value for the given NID.
 * the value is cached, and read via snd_hda_codec_get_pincfg()
 */


int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
		       hda_nid_t nid, unsigned int cfg)
{
	struct hda_pincfg *pin;

	/* the check below may be invalid when pins are added by a fixup
         * dynamically (e.g. via snd_hda_codec_update_widgets()), so disabled
         * for now
         */
	/*
        if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
                return -EINVAL;
        */

	pin = look_up_pincfg(codec, list, nid);
	if (!pin) {
		pin = snd_array_new(list);
		if (!pin)
			return -ENOMEM;
		pin->nid = nid;
	}
	pin->cfg = cfg;
	return 0;
}

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/**
 * snd_hda_codec_set_pincfg - Override a pin default configuration
 * @codec: the HDA codec
 * @nid: NID to set the pin config
 * @cfg: the pin default config value
 *
 * Override a pin default configuration value in the cache.
 * This value can be read by snd_hda_codec_get_pincfg() in a higher
 * priority than the real hardware value.
 */


int snd_hda_codec_set_pincfg(struct hda_codec *codec,
			     hda_nid_t nid, unsigned int cfg)
{
	return snd_hda_add_pincfg(codec, &codec->driver_pins, nid, cfg);
}
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EXPORT_SYMBOL_GPL(snd_hda_codec_set_pincfg);

/**
 * snd_hda_codec_get_pincfg - Obtain a pin-default configuration
 * @codec: the HDA codec
 * @nid: NID to get the pin config
 *
 * Get the current pin config value of the given pin NID.
 * If the pincfg value is cached or overridden via sysfs or driver,
 * returns the cached value.
 */


unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid)
{
	struct hda_pincfg *pin;

#ifdef CONFIG_SND_HDA_RECONFIG
	{
		unsigned int cfg = 0;
		mutex_lock(&codec->user_mutex);
		pin = look_up_pincfg(codec, &codec->user_pins, nid);
		if (pin)
			cfg = pin->cfg;
		mutex_unlock(&codec->user_mutex);
		if (cfg)
			return cfg;
	}
#endif
	pin = look_up_pincfg(codec, &codec->driver_pins, nid);
	if (pin)
		return pin->cfg;
	pin = look_up_pincfg(codec, &codec->init_pins, nid);
	if (pin)
		return pin->cfg;
	return 0;
}
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EXPORT_SYMBOL_GPL(snd_hda_codec_get_pincfg);

/**
 * snd_hda_codec_set_pin_target - remember the current pinctl target value
 * @codec: the HDA codec
 * @nid: pin NID
 * @val: assigned pinctl value
 *
 * This function stores the given value to a pinctl target value in the
 * pincfg table.  This isn't always as same as the actually written value
 * but can be referred at any time via snd_hda_codec_get_pin_target().
 */


int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid,
				 unsigned int val)
{
	struct hda_pincfg *pin;

	pin = look_up_pincfg(codec, &codec->init_pins, nid);
	if (!pin)
		return -EINVAL;
	pin->target = val;
	return 0;
}
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EXPORT_SYMBOL_GPL(snd_hda_codec_set_pin_target);

/**
 * snd_hda_codec_get_pin_target - return the current pinctl target value
 * @codec: the HDA codec
 * @nid: pin NID
 */


int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid)
{
	struct hda_pincfg *pin;

	pin = look_up_pincfg(codec, &codec->init_pins, nid);
	if (!pin)
		return 0;
	return pin->target;
}
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EXPORT_SYMBOL_GPL(snd_hda_codec_get_pin_target);

/**
 * snd_hda_shutup_pins - Shut up all pins
 * @codec: the HDA codec
 *
 * Clear all pin controls to shup up before suspend for avoiding click noise.
 * The controls aren't cached so that they can be resumed properly.
 */


void snd_hda_shutup_pins(struct hda_codec *codec)
{
	int i;
	/* don't shut up pins when unloading the driver; otherwise it breaks
         * the default pin setup at the next load of the driver
         */
	if (codec->bus->shutdown)
		return;
	for (i = 0; i < codec->init_pins.used; i++) {
		struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i);
		/* use read here for syncing after issuing each verb */
		snd_hda_codec_read(codec, pin->nid, 0,
				   AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
	}
	codec->pins_shutup = 1;
}
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EXPORT_SYMBOL_GPL(snd_hda_shutup_pins);

#ifdef CONFIG_PM
/* Restore the pin controls cleared previously via snd_hda_shutup_pins() */


static void restore_shutup_pins(struct hda_codec *codec)
{
	int i;
	if (!codec->pins_shutup)
		return;
	if (codec->bus->shutdown)
		return;
	for (i = 0; i < codec->init_pins.used; i++) {
		struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i);
		snd_hda_codec_write(codec, pin->nid, 0,
				    AC_VERB_SET_PIN_WIDGET_CONTROL,
				    pin->ctrl);
	}
	codec->pins_shutup = 0;
}
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#endif



static void hda_jackpoll_work(struct work_struct *work)
{
	struct hda_codec *codec =
		container_of(work, struct hda_codec, jackpoll_work.work);

	snd_hda_jack_set_dirty_all(codec);
	snd_hda_jack_poll_all(codec);

	if (!codec->jackpoll_interval)
		return;

	schedule_delayed_work(&codec->jackpoll_work,
			      codec->jackpoll_interval);
}

Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 28 48.28% 3 60.00%
david henningsson david henningsson 25 43.10% 1 20.00%
wang xingchao wang xingchao 5 8.62% 1 20.00%
Total 58 100.00% 5 100.00%

/* release all pincfg lists */


static void free_init_pincfgs(struct hda_codec *codec)
{
	snd_array_free(&codec->driver_pins);
#ifdef CONFIG_SND_HDA_RECONFIG
	snd_array_free(&codec->user_pins);
#endif
	snd_array_free(&codec->init_pins);
}

Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 40 100.00% 5 100.00%
Total 40 100.00% 5 100.00%

/*
 * audio-converter setup caches
 */

struct hda_cvt_setup {
	
hda_nid_t nid;
	
u8 stream_tag;
	
u8 channel_id;
	
u16 format_id;
	
unsigned char active;	/* cvt is currently used */
	
unsigned char dirty;	/* setups should be cleared */
};

/* get or create a cache entry for the given audio converter NID */

static struct hda_cvt_setup *

get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid)
{
	struct hda_cvt_setup *p;
	int i;

	for (i = 0; i < codec->cvt_setups.used; i++) {
		p = snd_array_elem(&codec->cvt_setups, i);
		if (p->nid == nid)
			return p;
	}
	p = snd_array_new(&codec->cvt_setups);
	if (p)
		p->nid = nid;
	return p;
}

Contributors
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takashi iwai takashi iwai 89 100.00% 2 100.00%
Total 89 100.00% 2 100.00%

/*
 * PCM device
 */


static void release_pcm(struct kref *kref)
{
	struct hda_pcm *pcm = container_of(kref, struct hda_pcm, kref);

	if (pcm->pcm)
		snd_device_free(pcm->codec->card, pcm->pcm);
	clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits);
	kfree(pcm->name);
	kfree(pcm);
}

Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 72 100.00% 2 100.00%
Total 72 100.00% 2 100.00%



void snd_hda_codec_pcm_put(struct hda_pcm *pcm)
{
	kref_put(&pcm->kref, release_pcm);
}
Contributors
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takashi iwai takashi iwai 20 100.00% 2 100.00%
Total 20 100.00% 2 100.00%


EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_put);



struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
				      const char *fmt, ...)
{
	struct hda_pcm *pcm;
	va_list args;

	pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
	if (!pcm)
		return NULL;

	pcm->codec = codec;
	kref_init(&pcm->kref);
	va_start(args, fmt);
	pcm->name = kvasprintf(GFP_KERNEL, fmt, args);
	va_end(args);
	if (!pcm->name) {
		kfree(pcm);
		return NULL;
	}

	list_add_tail(&pcm->list, &codec->pcm_list_head);
	return pcm;
}
Contributors
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takashi iwai takashi iwai 98 81.67% 3 60.00%
david henningsson david henningsson 17 14.17% 1 20.00%
wang xingchao wang xingchao 5 4.17% 1 20.00%
Total 120 100.00% 5 100.00%


EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new);

/*
 * codec destructor
 */


static void codec_release_pcms(struct hda_codec *codec)
{
	struct hda_pcm *pcm, *n;

	list_for_each_entry_safe(pcm, n, &codec->pcm_list_head, list) {
		list_del_init(&pcm->list);
		if (pcm->pcm)
			snd_device_disconnect(codec->card, pcm->pcm);
		snd_hda_codec_pcm_put(pcm);
	}
}

Contributors
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takashi iwai takashi iwai 61 100.00% 4 100.00%
Total 61 100.00% 4 100.00%



void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
{
	if (codec->registered) {
		/* pm_runtime_put() is called in snd_hdac_device_exit() */
		pm_runtime_get_noresume(hda_codec_dev(codec));
		pm_runtime_disable(hda_codec_dev(codec));
		codec->registered = 0;
	}

	cancel_delayed_work_sync(&codec->jackpoll_work);
	if (!codec->in_freeing)
		snd_hda_ctls_clear(codec);
	codec_release_pcms(codec);
	snd_hda_detach_beep_device(codec);
	memset(&codec->patch_ops, 0, sizeof(codec->patch_ops));
	snd_hda_jack_tbl_clear(codec);
	codec->proc_widget_hook = NULL;
	codec->spec = NULL;

	/* free only driver_pins so that init_pins + user_pins are restored */
	snd_array_free(&codec->driver_pins);
	snd_array_free(&codec->cvt_setups);
	snd_array_free(&codec->spdif_out);
	snd_array_free(&codec->verbs);
	codec->preset = NULL;
	codec->slave_dig_outs = NULL;
	codec->spdif_status_reset = 0;
	snd_array_free(&codec->mixers);
	snd_array_free(&codec->nids);
	remove_conn_list(codec);
	snd_hdac_regmap_exit(&codec->core);
}

Contributors
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takashi iwai takashi iwai 175 94.59% 10 71.43%
david henningsson david henningsson 6 3.24% 1 7.14%
jaroslav kysela jaroslav kysela 3 1.62% 2 14.29%
stephen warren stephen warren 1 0.54% 1 7.14%
Total 185 100.00% 14 100.00%

static unsigned int hda_set_power_state(struct hda_codec *codec,
				unsigned int power_state);

/* also called from hda_bind.c */


void snd_hda_codec_register(struct hda_codec *codec)
{
	if (codec->registered)
		return;
	if (device_is_registered(hda_codec_dev(codec))) {
		snd_hda_register_beep_device(codec);
		snd_hdac_link_power(&codec->core, true);
		pm_runtime_enable(hda_codec_dev(codec));
		/* it was powered up in snd_hda_codec_new(), now all done */
		snd_hda_power_down(codec);
		codec->registered = 1;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 54 84.38% 6 85.71%
mengdong lin mengdong lin 10 15.62% 1 14.29%
Total 64 100.00% 7 100.00%



static int snd_hda_codec_dev_register(struct snd_device *device)
{
	snd_hda_codec_register(device->device_data);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 17 80.95% 3 75.00%
david henningsson david henningsson 4 19.05% 1 25.00%
Total 21 100.00% 4 100.00%



static int snd_hda_codec_dev_disconnect(struct snd_device *device)
{
	struct hda_codec *codec = device->device_data;

	snd_hda_detach_beep_device(codec);
	return 0;
}

Contributors
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takashi iwai takashi iwai 28 100.00% 3 100.00%
Total 28 100.00% 3 100.00%



static int snd_hda_codec_dev_free(struct snd_device *device)
{
	struct hda_codec *codec = device->device_data;

	codec->in_freeing = 1;
	snd_hdac_device_unregister(&codec->core);
	snd_hdac_link_power(&codec->core, false);
	put_device(hda_codec_dev(codec));
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 42 76.36% 7 77.78%
mengdong lin mengdong lin 7 12.73% 1 11.11%
jaroslav kysela jaroslav kysela 6 10.91% 1 11.11%
Total 55 100.00% 9 100.00%



static void snd_hda_codec_dev_release(struct device *dev)
{
	struct hda_codec *codec = dev_to_hda_codec(dev);

	free_init_pincfgs(codec);
	snd_hdac_device_exit(&codec->core);
	snd_hda_sysfs_clear(codec);
	kfree(codec->modelname);
	kfree(codec->wcaps);
	kfree(codec);
}

Contributors
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takashi iwai takashi iwai 58 100.00% 8 100.00%
Total 58 100.00% 8 100.00%

/**
 * snd_hda_codec_new - create a HDA codec
 * @bus: the bus to assign
 * @codec_addr: the codec address
 * @codecp: the pointer to store the generated codec
 *
 * Returns 0 if successful, or a negative error code.
 */


int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
		      unsigned int codec_addr, struct hda_codec **codecp)
{
	struct hda_codec *codec;
	char component[31];
	hda_nid_t fg;
	int err;
	static struct snd_device_ops dev_ops = {
		.dev_register = snd_hda_codec_dev_register,
		.dev_disconnect = snd_hda_codec_dev_disconnect,
		.dev_free = snd_hda_codec_dev_free,
        };

	if (snd_BUG_ON(!bus))
		return -EINVAL;
	if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
		return -EINVAL;

	codec = kzalloc(sizeof(*codec), GFP_KERNEL);
	if (!codec)
		return -ENOMEM;

	sprintf(component, "hdaudioC%dD%d", card->number, codec_addr);
	err = snd_hdac_device_init(&codec->core, &bus->core, component,
				   codec_addr);
	if (err < 0) {
		kfree(codec);
		return err;
	}

	codec->core.dev.release = snd_hda_codec_dev_release;
	codec->core.type = HDA_DEV_LEGACY;
	codec->core.exec_verb = codec_exec_verb;

	codec->bus = bus;
	codec->card = card;
	codec->addr = codec_addr;
	mutex_init(&codec->spdif_mutex);
	mutex_init(&codec->control_mutex);
	snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
	snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
	snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
	snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
	snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
	snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
	snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
	snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
	INIT_LIST_HEAD(&codec->conn_list);
	INIT_LIST_HEAD(&codec->pcm_list_head);

	INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
	codec->depop_delay = -1;
	codec->fixup_id = HDA_FIXUP_ID_NOT_SET;

#ifdef CONFIG_PM
	codec->power_jiffies = jiffies;
#endif

	snd_hda_sysfs_init(codec);

	if (codec->bus->modelname) {
		codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
		if (!codec->modelname) {
			err = -ENOMEM;
			goto error;
		}
	}

	fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
	err = read_widget_caps(codec, fg);
	if (err < 0)
		goto error;
	err = read_pin_defaults(codec);
	if (err < 0)
		goto error;

	/* power-up all before initialization */
	hda_set_power_state(codec, AC_PWRST_D0);

	snd_hda_codec_proc_new(codec);

	snd_hda_create_hwdep(codec);

	sprintf(component, "HDA:%08x,%08x,%08x", codec->core.vendor_id,
		codec->core.subsystem_id, codec->core.revision_id);
	snd_component_add(card, component);

	err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops);
	if (err < 0)
		goto error;

	if (codecp)
		*codecp = codec;
	return 0;

 error:
	put_device(hda_codec_dev(codec));
	return err;
}
Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 414 69.35% 32 71.11%
jaroslav kysela jaroslav kysela 99 16.58% 4 8.89%
mengdong lin mengdong lin 47 7.87% 3 6.67%
david henningsson david henningsson 16 2.68% 2 4.44%
stephen warren stephen warren 11 1.84% 1 2.22%
wu fengguang wu fengguang 8 1.34% 1 2.22%
ingo molnar ingo molnar 1 0.17% 1 2.22%
heloise nh heloise nh 1 0.17% 1 2.22%
Total 597 100.00% 45 100.00%


EXPORT_SYMBOL_GPL(snd_hda_codec_new);

/**
 * snd_hda_codec_update_widgets - Refresh widget caps and pin defaults
 * @codec: the HDA codec
 *
 * Forcibly refresh the all widget caps and the init pin configurations of
 * the given codec.
 */


int snd_hda_codec_update_widgets(struct hda_codec *codec)
{
	hda_nid_t fg;
	int err;

	err = snd_hdac_refresh_widget_sysfs(&codec->core);
	if (err < 0)
		return err;

	/* Assume the function group node does not change,
         * only the widget nodes may change.
         */
	kfree(codec->wcaps);
	fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
	err = read_widget_caps(codec, fg);
	if (err < 0)
		return err;

	snd_array_free(&codec->init_pins);
	err = read_pin_defaults(codec);

	return err;
}
Contributors
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takashi iwai takashi iwai 90 90.91% 7 87.50%
jaroslav kysela jaroslav kysela 9 9.09% 1 12.50%
Total 99 100.00% 8 100.00%


EXPORT_SYMBOL_GPL(snd_hda_codec_update_widgets);

/* update the stream-id if changed */


static void update_pcm_stream_id(struct hda_codec *codec,
				 struct hda_cvt_setup *p, hda_nid_t nid,
				 u32 stream_tag, int channel_id)
{
	unsigned int oldval, newval;

	if (p->stream_tag != stream_tag || p->channel_id != channel_id) {
		oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
		newval = (stream_tag << 4) | channel_id;
		if (oldval != newval)
			snd_hda_codec_write(codec, nid, 0,
					    AC_VERB_SET_CHANNEL_STREAMID,
					    newval);
		p->stream_tag = stream_tag;
		p->channel_id = channel_id;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 71 68.93% 2 66.67%
jaroslav kysela jaroslav kysela 32 31.07% 1 33.33%
Total 103 100.00% 3 100.00%

/* update the format-id if changed */


static void update_pcm_format(struct hda_codec *codec, struct hda_cvt_setup *p,
			      hda_nid_t nid, int format)
{
	unsigned int oldval;

	if (p->format_id != format) {
		oldval = snd_hda_codec_read(codec, nid, 0,
					    AC_VERB_GET_STREAM_FORMAT, 0);
		if (oldval != format) {
			msleep(1);
			snd_hda_codec_write(codec, nid, 0,
					    AC_VERB_SET_STREAM_FORMAT,
					    format);
		}
		p->format_id = format;
	}
}

Contributors
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takashi iwai takashi iwai 79 95.18% 2 66.67%
jaroslav kysela jaroslav kysela 4 4.82% 1 33.33%
Total 83 100.00% 3 100.00%

/**
 * snd_hda_codec_setup_stream - set up the codec for streaming
 * @codec: the CODEC to set up
 * @nid: the NID to set up
 * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
 * @channel_id: channel id to pass, zero based.
 * @format: stream format.
 */


void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
				u32 stream_tag,
				int channel_id, int format)
{
	struct hda_codec *c;
	struct hda_cvt_setup *p;
	int type;
	int i;

	if (!nid)
		return;

	codec_dbg(codec,
		  "hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
		  nid, stream_tag, channel_id, format);
	p = get_hda_cvt_setup(codec, nid);
	if (!p)
		return;

	if (codec->patch_ops.stream_pm)
		codec->patch_ops.stream_pm(codec, nid, true);
	if (codec->pcm_format_first)
		update_pcm_format(codec, p, nid, format);
	update_pcm_stream_id(codec, p, nid, stream_tag, channel_id);
	if (!codec->pcm_format_first)
		update_pcm_format(codec, p, nid, format);

	p->active = 1;
	p->dirty = 0;

	/* make other inactive cvts with the same stream-tag dirty */
	type = get_wcaps_type(get_wcaps(codec, nid));
	list_for_each_codec(c, codec->bus) {
		for (i = 0; i < c->cvt_setups.used; i++) {
			p = snd_array_elem(&c->cvt_setups, i);
			if (!p->active && p->stream_tag == stream_tag &&
			    get_wcaps_type(get_wcaps(c, p->nid)) == type)
				p->dirty = 1;
		}
	}
}
Contributors
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takashi iwai takashi iwai 239 99.58% 7 87.50%
david henningsson david henningsson 1 0.42% 1 12.50%
Total 240 100.00% 8 100.00%


EXPORT_SYMBOL_GPL(snd_hda_codec_setup_stream);

static void really_cleanup_stream(struct hda_codec *codec,
				  struct hda_cvt_setup *q);

/**
 * __snd_hda_codec_cleanup_stream - clean up the codec for closing
 * @codec: the CODEC to clean up
 * @nid: the NID to clean up
 * @do_now: really clean up the stream instead of clearing the active flag
 */


void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
				    int do_now)
{
	struct hda_cvt_setup *p;

	if (!nid)
		return;

	if (codec->no_sticky_stream)
		do_now = 1;

	codec_dbg(codec, "hda_codec_cleanup_stream: NID=0x%x\n", nid);
	p = get_hda_cvt_setup(codec, nid);
	if (p) {
		/* here we just clear the active flag when do_now isn't set;
                 * actual clean-ups will be done later in
                 * purify_inactive_streams() called from snd_hda_codec_prpapre()
                 */
		if (do_now)
			really_cleanup_stream(codec, p);
		else
			p->active = 0;
	}
}
Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 80 100.00% 4 100.00%
Total 80 100.00% 4 100.00%


EXPORT_SYMBOL_GPL(__snd_hda_codec_cleanup_stream);



static void really_cleanup_stream(struct hda_codec *codec,
				  struct hda_cvt_setup *q)
{
	hda_nid_t nid = q->nid;
	if (q->stream_tag || q->channel_id)
		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0);
	if (q->format_id)
		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0
);
	memset(q, 0, sizeof(*q));
	q->nid = nid;
	if (codec->patch_ops.stream_pm)
		codec->patch_ops.stream_pm(codec, nid, false);
}

Contributors
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takashi iwai takashi iwai 105 100.00% 3 100.00%
Total 105 100.00% 3 100.00%

/* clean up the all conflicting obsolete streams */


static void purify_inactive_streams(struct hda_codec *codec)
{
	struct hda_codec *c;
	int i;

	list_for_each_codec(c, codec->bus) {
		for (i = 0; i < c->cvt_setups.used; i++) {
			struct hda_cvt_setup *p;
			p = snd_array_elem(&c->cvt_setups, i);
			if (p->dirty)
				really_cleanup_stream(c, p);
		}
	}
}

Contributors
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takashi iwai takashi iwai 70 92.11% 3 75.00%
jaroslav kysela jaroslav kysela 6 7.89% 1 25.00%
Total 76 100.00% 4 100.00%

#ifdef CONFIG_PM
/* clean up all streams; called from suspend */


static void hda_cleanup_all_streams(struct hda_codec *codec)
{
	int i;

	for (i = 0; i < codec->cvt_setups.used; i++) {
		struct hda_cvt_setup *p = snd_array_elem(&codec->cvt_setups, i);
		if (p->stream_tag)
			really_cleanup_stream(codec, p);
	}
}
Contributors
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takashi iwai takashi iwai 61 100.00% 2 100.00%
Total 61 100.00% 2 100.00%

#endif

/*
 * amp access functions
 */

/**
 * query_amp_caps - query AMP capabilities
 * @codec: the HD-auio codec
 * @nid: the NID to query
 * @direction: either #HDA_INPUT or #HDA_OUTPUT
 *
 * Query AMP capabilities for the given widget and direction.
 * Returns the obtained capability bits.
 *
 * When cap bits have been already read, this doesn't read again but
 * returns the cached value.
 */


u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
{
	if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
		nid = codec->core.afg;
	return snd_hda_param_read(codec, nid,
				  direction == HDA_OUTPUT ?
				  AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
}
Contributors
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takashi iwai takashi iwai 46 85.19% 3 75.00%
jaroslav kysela jaroslav kysela 8 14.81% 1 25.00%
Total 54 100.00% 4 100.00%


EXPORT_SYMBOL_GPL(query_amp_caps);

/**
 * snd_hda_check_amp_caps - query AMP capabilities
 * @codec: the HD-audio codec
 * @nid: the NID to query
 * @dir: either #HDA_INPUT or #HDA_OUTPUT
 * @bits: bit mask to check the result
 *
 * Check whether the widget has the given amp capability for the direction.
 */


bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
			   int dir, unsigned int bits)
{
	if (!nid)
		return false;
	if (get_wcaps(codec, nid) & (1 << (dir + 1)))
		if (query_amp_caps(codec, nid, dir) & bits)
			return true;
	return false;
}
Contributors
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david henningsson david henningsson 40 60.61% 1 33.33%
takashi iwai takashi iwai 16 24.24% 1 33.33%
jaroslav kysela jaroslav kysela 10 15.15% 1 33.33%
Total 66 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_check_amp_caps);

/**
 * snd_hda_override_amp_caps - Override the AMP capabilities
 * @codec: the CODEC to clean up
 * @nid: the NID to clean up
 * @dir: either #HDA_INPUT or #HDA_OUTPUT
 * @caps: the capability bits to set
 *
 * Override the cached AMP caps bits value by the given one.
 * This function is useful if the driver needs to adjust the AMP ranges,
 * e.g. limit to 0dB, etc.
 *
 * Returns zero if successful or a negative error code.
 */


int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
			      unsigned int caps)
{
	unsigned int parm;

	snd_hda_override_wcaps(codec, nid,
			       get_wcaps(codec, nid) | AC_WCAP_AMP_OVRD);
	parm = dir == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP;
	return snd_hdac_override_parm(&codec->core, nid, parm, caps);
}
Contributors
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takashi iwai takashi iwai 65 100.00% 6 100.00%
Total 65 100.00% 6 100.00%


EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps);

/**
 * snd_hda_codec_amp_update - update the AMP mono value
 * @codec: HD-audio codec
 * @nid: NID to read the AMP value
 * @ch: channel to update (0 or 1)
 * @dir: #HDA_INPUT or #HDA_OUTPUT
 * @idx: the index value (only for input direction)
 * @mask: bit mask to set
 * @val: the bits value to set
 *
 * Update the AMP values for the given channel, direction and index.
 */


int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid,
			     int ch, int dir, int idx, int mask, int val)
{
	unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);

	/* enable fake mute if no h/w mute but min=mute */
	if ((query_amp_caps(codec, nid, dir) &
	     (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE)
		cmd |= AC_AMP_FAKE_MUTE;
	return snd_hdac_regmap_update_raw(&codec->core, cmd, mask, val);
}
Contributors
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takashi iwai takashi iwai 84 100.00% 1 100.00%
Total 84 100.00% 1 100.00%


EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update);

/**
 * snd_hda_codec_amp_stereo - update the AMP stereo values
 * @codec: HD-audio codec
 * @nid: NID to read the AMP value
 * @direction: #HDA_INPUT or #HDA_OUTPUT
 * @idx: the index value (only for input direction)
 * @mask: bit mask to set
 * @val: the bits value to set
 *
 * Update the AMP values like snd_hda_codec_amp_update(), but for a
 * stereo widget with the same mask and value.
 */


int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
			     int direction, int idx, int mask, int val)
{
	int ch, ret = 0;

	if (snd_BUG_ON(mask & ~0xff))
		mask &= 0xff;
	for (ch = 0; ch < 2; ch++)
		ret |= snd_hda_codec_amp_update(codec, nid, ch, direction,
						idx, mask, val);
	return ret;
}
Contributors
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takashi iwai takashi iwai 81 100.00% 2 100.00%
Total 81 100.00% 2 100.00%


EXPORT_SYMBOL_GPL(snd_hda_codec_amp_stereo);

/**
 * snd_hda_codec_amp_init - initialize the AMP value
 * @codec: the HDA codec
 * @nid: NID to read the AMP value
 * @ch: channel (left=0 or right=1)
 * @dir: #HDA_INPUT or #HDA_OUTPUT
 * @idx: the index value (only for input direction)
 * @mask: bit mask to set
 * @val: the bits value to set
 *
 * Works like snd_hda_codec_amp_update() but it writes the value only at
 * the first access.  If the amp was already initialized / updated beforehand,
 * this does nothing.
 */


int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
			   int dir, int idx, int mask, int val)
{
	int orig;

	if (!codec->core.regmap)
		return -EINVAL;
	regcache_cache_only(codec->core.regmap, true);
	orig = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
	regcache_cache_only(codec->core.regmap, false);
	if (orig >= 0)
		return 0;
	return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, mask, val);
}
Contributors
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takashi iwai takashi iwai 108 100.00% 7 100.00%
Total 108 100.00% 7 100.00%


EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init);

/**
 * snd_hda_codec_amp_init_stereo - initialize the stereo AMP value
 * @codec: the HDA codec
 * @nid: NID to read the AMP value
 * @dir: #HDA_INPUT or #HDA_OUTPUT
 * @idx: the index value (only for input direction)
 * @mask: bit mask to set
 * @val: the bits value to set
 *
 * Call snd_hda_codec_amp_init() for both stereo channels.
 */


int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid,
				  int dir, int idx, int mask, int val)
{
	int ch, ret = 0;

	if (snd_BUG_ON(mask & ~0xff))
		mask &= 0xff;
	for (ch = 0; ch < 2; ch++)
		ret |= snd_hda_codec_amp_init(codec, nid, ch, dir,
					      idx, mask, val);
	return ret;
}
Contributors
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takashi iwai takashi iwai 81 100.00% 3 100.00%
Total 81 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init_stereo);



static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir,
			     unsigned int ofs)
{
	u32 caps = query_amp_caps(codec, nid, dir);
	/* get num steps */
	caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
	if (ofs < caps)
		caps -= ofs;
	return caps;
}

Contributors
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takashi iwai takashi iwai 57 100.00% 1 100.00%
Total 57 100.00% 1 100.00%

/**
 * snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer
 * @kcontrol: referred ctl element
 * @uinfo: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
 */


int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_info *uinfo)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	u16 nid = get_amp_nid(kcontrol);
	u8 chs = get_amp_channels(kcontrol);
	int dir = get_amp_direction(kcontrol);
	unsigned int ofs = get_amp_offset(kcontrol);

	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = chs == 3 ? 2 : 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = get_amp_max_value(codec, nid, dir, ofs);
	if (!uinfo->value.integer.max) {
		codec_warn(codec,
			   "num_steps = 0 for NID=0x%x (ctl = %s)\n",
			   nid, kcontrol->id.name);
		return -EINVAL;
	}
	return 0;
}
Contributors
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jaroslav kysela jaroslav kysela 85 60.71% 1 20.00%
takashi iwai takashi iwai 55 39.29% 4 80.00%
Total 140 100.00% 5 100.00%


EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_info);



static inline unsigned int

read_amp_value(struct hda_codec *codec, hda_nid_t nid,
	       int ch, int dir, int idx, unsigned int ofs)
{
	unsigned int val;
	val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
	val &= HDA_AMP_VOLMASK;
	if (val >= ofs)
		val -= ofs;
	else
		val = 0;
	return val;
}

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takashi iwai takashi iwai 70 100.00% 1 100.00%
Total 70 100.00% 1 100.00%


static inline int

update_amp_value(struct hda_codec *codec, hda_nid_t nid,
		 int ch, int dir, int idx, unsigned int ofs,
		 unsigned int val)
{
	unsigned int maxval;

	if (val > 0)
		val += ofs;
	/* ofs = 0: raw max value */
	maxval = get_amp_max_value(codec, nid, dir, 0);
	if (val > maxval)
		val = maxval;
	return snd_hda_codec_amp_update(codec, nid, ch, dir, idx,
					HDA_AMP_VOLMASK, val);
}

Contributors
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takashi iwai takashi iwai 88 100.00% 4 100.00%
Total 88 100.00% 4 100.00%

/**
 * snd_hda_mixer_amp_volume_get - Get callback for a standard AMP mixer volume
 * @kcontrol: ctl element
 * @ucontrol: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
 */


int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	hda_nid_t nid = get_amp_nid(kcontrol);
	int chs = get_amp_channels(kcontrol);
	int dir = get_amp_direction(kcontrol);
	int idx = get_amp_index(kcontrol);
	unsigned int ofs = get_amp_offset(kcontrol);
	long *valp = ucontrol->value.integer.value;

	if (chs & 1)
		*valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs);
	if (chs & 2)
		*valp = read_amp_value(codec, nid, 1, dir, idx, ofs);
	return 0;
}
Contributors
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jaroslav kysela jaroslav kysela 111 85.38% 1 33.33%
takashi iwai takashi iwai 19 14.62% 2 66.67%
Total 130 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_get);

/**
 * snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume
 * @kcontrol: ctl element
 * @ucontrol: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
 */


int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	hda_nid_t nid = get_amp_nid(kcontrol);
	int chs = get_amp_channels(kcontrol);
	int dir = get_amp_direction(kcontrol);
	int idx = get_amp_index(kcontrol);
	unsigned int ofs = get_amp_offset(kcontrol);
	long *valp = ucontrol->value.integer.value;
	int change = 0;

	if (chs & 1) {
		change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp);
		valp++;
	}
	if (chs & 2)
		change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp);
	return change;
}
Contributors
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jaroslav kysela jaroslav kysela 115 80.42% 1 20.00%
takashi iwai takashi iwai 22 15.38% 3 60.00%
nicolas graziano nicolas graziano 6 4.20% 1 20.00%
Total 143 100.00% 5 100.00%


EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_put);

/**
 * snd_hda_mixer_amp_volume_put - TLV callback for a standard AMP mixer volume
 * @kcontrol: ctl element
 * @op_flag: operation flag
 * @size: byte size of input TLV
 * @_tlv: TLV data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
 */


int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
			  unsigned int size, unsigned int __user *_tlv)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	hda_nid_t nid = get_amp_nid(kcontrol);
	int dir = get_amp_direction(kcontrol);
	unsigned int ofs = get_amp_offset(kcontrol);
	bool min_mute = get_amp_min_mute(kcontrol);
	u32 caps, val1, val2;

	if (size < 4 * sizeof(unsigned int))
		return -ENOMEM;
	caps = query_amp_caps(codec, nid, dir);
	val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
	val2 = (val2 + 1) * 25;
	val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
	val1 += ofs;
	val1 = ((int)val1) * ((int)val2);
	if (min_mute || (caps & AC_AMPCAP_MIN_MUTE))
		val2 |= TLV_DB_SCALE_MUTE;
	if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv))
		return -EFAULT;
	if (put_user(2 * sizeof(unsigned int), _tlv + 1))
		return -EFAULT;
	if (put_user(val1, _tlv + 2))
		return -EFAULT;
	if (put_user(val2, _tlv + 3))
		return -EFAULT;
	return 0;
}
Contributors
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jaroslav kysela jaroslav kysela 194 82.91% 1 16.67%
takashi iwai takashi iwai 25 10.68% 4 66.67%
clemens ladisch clemens ladisch 15 6.41% 1 16.67%
Total 234 100.00% 6 100.00%


EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_tlv);

/**
 * snd_hda_set_vmaster_tlv - Set TLV for a virtual master control
 * @codec: HD-audio codec
 * @nid: NID of a reference widget
 * @dir: #HDA_INPUT or #HDA_OUTPUT
 * @tlv: TLV data to be stored, at least 4 elements
 *
 * Set (static) TLV data for a virtual master volume using the AMP caps
 * obtained from the reference NID.
 * The volume range is recalculated as if the max volume is 0dB.
 */


void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
			     unsigned int *tlv)
{
	u32 caps;
	int nums, step;

	caps = query_amp_caps(codec, nid, dir);
	nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
	step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
	step = (step + 1) * 25;
	tlv[0] = SNDRV_CTL_TLVT_DB_SCALE;
	tlv[1] = 2 * sizeof(unsigned int);
	tlv[2] = -nums * step;
	tlv[3] = step;
}
Contributors
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takashi iwai takashi iwai 107 100.00% 1 100.00%
Total 107 100.00% 1 100.00%


EXPORT_SYMBOL_GPL(snd_hda_set_vmaster_tlv);

/* find a mixer control element with the given name */

static struct snd_kcontrol *

find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx)
{
	struct snd_ctl_elem_id id;
	memset(&id, 0, sizeof(id));
	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	id.device = dev;
	id.index = idx;
	if (snd_BUG_ON(strlen(name) >= sizeof(id.name)))
		return NULL;
	strcpy(id.name, name);
	return snd_ctl_find_id(codec->card, &id);
}

Contributors
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takashi iwai takashi iwai 99 100.00% 4 100.00%
Total 99 100.00% 4 100.00%

/**
 * snd_hda_find_mixer_ctl - Find a mixer control element with the given name
 * @codec: HD-audio codec
 * @name: ctl id name string
 *
 * Get the control element with the given id string and IFACE_MIXER.
 */


struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
					    const char *name)
{
	return find_mixer_ctl(codec, name, 0, 0);
}
Contributors
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takashi iwai takashi iwai 29 100.00% 2 100.00%
Total 29 100.00% 2 100.00%


EXPORT_SYMBOL_GPL(snd_hda_find_mixer_ctl);



static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name,
				    int start_idx)
{
	int i, idx;
	/* 16 ctlrs should be large enough */
	for (i = 0, idx = start_idx; i < 16; i++, idx++) {
		if (!find_mixer_ctl(codec, name, 0, idx))
			return idx;
	}
	return -EBUSY;
}

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takashi iwai takashi iwai 68 100.00% 3 100.00%
Total 68 100.00% 3 100.00%

/**
 * snd_hda_ctl_add - Add a control element and assign to the codec
 * @codec: HD-audio codec
 * @nid: corresponding NID (optional)
 * @kctl: the control element to assign
 *
 * Add the given control element to an array inside the codec instance.
 * All control elements belonging to a codec are supposed to be added
 * by this function so that a proper clean-up works at the free or
 * reconfiguration time.
 *
 * If non-zero @nid is passed, the NID is assigned to the control element.
 * The assignment is shown in the codec proc file.
 *
 * snd_hda_ctl_add() checks the control subdev id field whether
 * #HDA_SUBDEV_NID_FLAG bit is set.  If set (and @nid is zero), the lower
 * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit
 * specifies if kctl->private_value is a HDA amplifier value.
 */


int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
		    struct snd_kcontrol *kctl)
{
	int err;
	unsigned short flags = 0;
	struct hda_nid_item *item;

	if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) {
		flags |= HDA_NID_ITEM_AMP;
		if (nid == 0)
			nid = get_amp_nid_(kctl->private_value);
	}
	if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0)
		nid = kctl->id.subdevice & 0xffff;
	if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG))
		kctl->id.subdevice = 0;
	err = snd_ctl_add(codec->card, kctl);
	if (err < 0)
		return err;
	item = snd_array_new(&codec->mixers);
	if (!item)
		return -ENOMEM;
	item->kctl = kctl;
	item->nid = nid;
	item->flags = flags;
	return 0;
}
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jaroslav kysela jaroslav kysela 109 63.01% 4 80.00%
takashi iwai takashi iwai 64 36.99% 1 20.00%
Total 173 100.00% 5 100.00%


EXPORT_SYMBOL_GPL(snd_hda_ctl_add);

/**
 * snd_hda_add_nid - Assign a NID to a control element
 * @codec: HD-audio codec
 * @nid: corresponding NID (optional)
 * @kctl: the control element to assign
 * @index: index to kctl
 *
 * Add the given control element to an array inside the codec instance.
 * This function is used when #snd_hda_ctl_add cannot be used for 1:1
 * NID:KCTL mapping - for example "Capture Source" selector.
 */


int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
		    unsigned int index, hda_nid_t nid)
{
	struct hda_nid_item *item;

	if (nid > 0) {
		item = snd_array_new(&codec->nids);
		if (!item)
			return -ENOMEM;
		item->kctl = kctl;
		item->index = index;
		item->nid = nid;
		return 0;
	}
	codec_err(codec, "no NID for mapping control %s:%d:%d\n",
		  kctl->id.name, kctl->id.index, index);
	return -EINVAL;
}
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jaroslav kysela jaroslav kysela 79 79.00% 1 33.33%
takashi iwai takashi iwai 21 21.00% 2 66.67%
Total 100 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_add_nid);

/**
 * snd_hda_ctls_clear - Clear all controls assigned to the given codec
 * @codec: HD-audio codec
 */


void snd_hda_ctls_clear(struct hda_codec *codec)
{
	int i;
	struct hda_nid_item *items = codec->mixers.list;
	for (i = 0; i < codec->mixers.used; i++)
		snd_ctl_remove(codec->card, items[i].kctl);
	snd_array_free(&codec->mixers);
	snd_array_free(&codec->nids);
}

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takashi iwai takashi iwai 58 81.69% 1 33.33%
jaroslav kysela jaroslav kysela 13 18.31% 2 66.67%
Total 71 100.00% 3 100.00%

/**
 * snd_hda_lock_devices - pseudo device locking
 * @bus: the BUS
 *
 * toggle card->shutdown to allow/disallow the device access (as a hack)
 */


int snd_hda_lock_devices(struct hda_bus *bus)
{
	struct snd_card *card = bus->card;
	struct hda_codec *codec;

	spin_lock(&card->files_lock);
	if (card->shutdown)
		goto err_unlock;
	card->shutdown = 1;
	if (!list_empty(&card->ctl_files))
		goto err_clear;

	list_for_each_codec(codec, bus) {
		struct hda_pcm *cpcm;
		list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
			if (!cpcm->pcm)
				continue;
			if (cpcm->pcm->streams[0].substream_opened ||
			    cpcm->pcm->streams[1].substream_opened)
				goto err_clear;
		}
	}
	spin_unlock(&card->files_lock);
	return 0;

 err_clear:
	card->shutdown = 0;
 err_unlock:
	spin_unlock(&card->files_lock);
	return -EINVAL;
}
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takashi iwai takashi iwai 152 100.00% 4 100.00%
Total 152 100.00% 4 100.00%


EXPORT_SYMBOL_GPL(snd_hda_lock_devices);

/**
 * snd_hda_unlock_devices - pseudo device unlocking
 * @bus: the BUS
 */


void snd_hda_unlock_devices(struct hda_bus *bus)
{
	struct snd_card *card = bus->card;

	spin_lock(&card->files_lock);
	card->shutdown = 0;
	spin_unlock(&card->files_lock);
}
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takashi iwai takashi iwai 41 100.00% 3 100.00%
Total 41 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_unlock_devices);

/**
 * snd_hda_codec_reset - Clear all objects assigned to the codec
 * @codec: HD-audio codec
 *
 * This frees the all PCM and control elements assigned to the codec, and
 * clears the caches and restores the pin default configurations.
 *
 * When a device is being used, it returns -EBSY.  If successfully freed,
 * returns zero.
 */


int snd_hda_codec_reset(struct hda_codec *codec)
{
	struct hda_bus *bus = codec->bus;

	if (snd_hda_lock_devices(bus) < 0)
		return -EBUSY;

	/* OK, let it free */
	snd_hdac_device_unregister(&codec->core);

	/* allow device access again */
	snd_hda_unlock_devices(bus);
	return 0;
}

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takashi iwai takashi iwai 50 100.00% 7 100.00%
Total 50 100.00% 7 100.00%


typedef int (*map_slave_func_t)(struct hda_codec *, void *, struct snd_kcontrol *);

/* apply the function to all matching slave ctls in the mixer list */


static int map_slaves(struct hda_codec *codec, const char * const *slaves,
		      const char *suffix, map_slave_func_t func, void *data) 
{
	struct hda_nid_item *items;
	const char * const *s;
	int i, err;

	items = codec->mixers.list;
	for (i = 0; i < codec->mixers.used; i++) {
		struct snd_kcontrol *sctl = items[i].kctl;
		if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER)
			continue;
		for (s = slaves; *s; s++) {
			char tmpname[sizeof(sctl->id.name)];
			const char *name = *s;
			if (suffix) {
				snprintf(tmpname, sizeof(tmpname), "%s %s",
					 name, suffix);
				name = tmpname;
			}
			if (!strcmp(sctl->id.name, name)) {
				err = func(codec, data, sctl);
				if (err)
					return err;
				break;
			}
		}
	}
	return 0;
}

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takashi iwai takashi iwai 199 100.00% 6 100.00%
Total 199 100.00% 6 100.00%



static int check_slave_present(struct hda_codec *codec,
			       void *data, struct snd_kcontrol *sctl)
{
	return 1;
}

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Total 23 100.00% 2 100.00%

/* guess the value corresponding to 0dB */


static int get_kctl_0dB_offset(struct hda_codec *codec,
			       struct snd_kcontrol *kctl, int *step_to_check)
{
	int _tlv[4];
	const int *tlv = NULL;
	int val = -1;

	if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
		/* FIXME: set_fs() hack for obtaining user-space TLV data */
		mm_segment_t fs = get_fs();
		set_fs(get_ds());
		if (!kctl->tlv.c(kctl, 0, sizeof(_tlv), _tlv))
			tlv = _tlv;
		set_fs(fs);
	} else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ)
		tlv = kctl->tlv.p;
	if (tlv && tlv[0] == SNDRV_CTL_TLVT_DB_SCALE) {
		int step = tlv[3];
		step &= ~TLV_DB_SCALE_MUTE;
		if (!step)
			return -1;
		if (*step_to_check && *step_to_check != step) {
			codec_err(codec, "Mismatching dB step for vmaster slave (%d!=%d)\n",
-				   *step_to_check, step);
			return -1;
		}
		*step_to_check = step;
		val = -tlv[2] / step;
	}
	return val;
}

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takashi iwai takashi iwai 201 100.00% 5 100.00%
Total 201 100.00% 5 100.00%

/* call kctl->put with the given value(s) */


static int put_kctl_with_value(struct snd_kcontrol *kctl, int val)
{
	struct snd_ctl_elem_value *ucontrol;
	ucontrol = kzalloc(sizeof(*ucontrol), GFP_KERNEL);
	if (!ucontrol)
		return -ENOMEM;
	ucontrol->value.integer.value[0] = val;
	ucontrol->value.integer.value[1] = val;
	kctl->put(kctl, ucontrol);
	kfree(ucontrol);
	return 0;
}

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takashi iwai takashi iwai 84 100.00% 2 100.00%
Total 84 100.00% 2 100.00%

/* initialize the slave volume with 0dB */


static int init_slave_0dB(struct hda_codec *codec,
			  void *data, struct snd_kcontrol *slave)
{
	int offset = get_kctl_0dB_offset(codec, slave, data);
	if (offset > 0)
		put_kctl_with_value(slave, offset);
	return 0;
}

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takashi iwai takashi iwai 48 100.00% 3 100.00%
Total 48 100.00% 3 100.00%

/* unmute the slave */


static int init_slave_unmute(struct hda_codec *codec,
			     void *data, struct snd_kcontrol *slave)
{
	return put_kctl_with_value(slave, 1);
}

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Total 28 100.00% 2 100.00%



static int add_slave(struct hda_codec *codec,
		     void *data, struct snd_kcontrol *slave)
{
	return snd_ctl_add_slave(data, slave);
}

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Total 28 100.00% 1 100.00%

/**
 * __snd_hda_add_vmaster - create a virtual master control and add slaves
 * @codec: HD-audio codec
 * @name: vmaster control name
 * @tlv: TLV data (optional)
 * @slaves: slave control names (optional)
 * @suffix: suffix string to each slave name (optional)
 * @init_slave_vol: initialize slaves to unmute/0dB
 * @ctl_ret: store the vmaster kcontrol in return
 *
 * Create a virtual master control with the given name.  The TLV data
 * must be either NULL or a valid data.
 *
 * @slaves is a NULL-terminated array of strings, each of which is a
 * slave control name.  All controls with these names are assigned to
 * the new virtual master control.
 *
 * This function returns zero if successful or a negative error code.
 */


int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
			unsigned int *tlv, const char * const *slaves,
			  const char *suffix, bool init_slave_vol,
			  struct snd_kcontrol **ctl_ret)
{
	struct snd_kcontrol *kctl;
	int err;

	if (ctl_ret)
		*ctl_ret = NULL;

	err = map_slaves(codec, slaves, suffix, check_slave_present, NULL);
	if (err != 1) {
		codec_dbg(codec, "No slave found for %s\n", name);
		return 0;
	}
	kctl = snd_ctl_make_virtual_master(name, tlv);
	if (!kctl)
		return -ENOMEM;
	err = snd_hda_ctl_add(codec, 0, kctl);
	if (err < 0)
		return err;

	err = map_slaves(codec, slaves, suffix, add_slave, kctl);
	if (err < 0)
		return err;

	/* init with master mute & zero volume */
	put_kctl_with_value(kctl, 0);
	if (init_slave_vol) {
		int step = 0;
		map_slaves(codec, slaves, suffix,
			   tlv ? init_slave_0dB : init_slave_unmute, &step);
	}

	if (ctl_ret)
		*ctl_ret = kctl;
	return 0;
}
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takashi iwai takashi iwai 201 99.01% 10 90.91%
jaroslav kysela jaroslav kysela 2 0.99% 1 9.09%
Total 203 100.00% 11 100.00%


EXPORT_SYMBOL_GPL(__snd_hda_add_vmaster);

/*
 * mute-LED control using vmaster
 */


static int vmaster_mute_mode_info(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_info *uinfo)
{
	static const char * const texts[] = {
		"On", "Off", "Follow Master"
	};

	return snd_ctl_enum_info(uinfo, 1, 3, texts);
}

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david henningsson david henningsson 2 4.55% 1 33.33%
Total 44 100.00% 3 100.00%



static int vmaster_mute_mode_get(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
	ucontrol->value.enumerated.item[0] = hook->mute_mode;
	return 0;
}

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Total 44 100.00% 1 100.00%



static int vmaster_mute_mode_put(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
	unsigned int old_mode = hook->mute_mode;

	hook->mute_mode = ucontrol->value.enumerated.item[0];
	if (hook->mute_mode > HDA_VMUTE_FOLLOW_MASTER)
		hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
	if (old_mode == hook->mute_mode)
		return 0;
	snd_hda_sync_vmaster_hook(hook);
	return 1;
}

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Total 82 100.00% 1 100.00%


static struct snd_kcontrol_new vmaster_mute_mode = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Mute-LED Mode",
	.info = vmaster_mute_mode_info,
	.get = vmaster_mute_mode_get,
	.put = vmaster_mute_mode_put,
};

/* meta hook to call each driver's vmaster hook */


static void vmaster_hook(void *private_data, int enabled)
{
	struct hda_vmaster_mute_hook *hook = private_data;

	if (hook->mute_mode != HDA_VMUTE_FOLLOW_MASTER)
		enabled = hook->mute_mode;
	hook->hook(hook->codec, enabled);
}

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Total 45 100.00% 1 100.00%

/**
 * snd_hda_add_vmaster_hook - Add a vmaster hook for mute-LED
 * @codec: the HDA codec
 * @hook: the vmaster hook object
 * @expose_enum_ctl: flag to create an enum ctl
 *
 * Add a mute-LED hook with the given vmaster switch kctl.
 * When @expose_enum_ctl is set, "Mute-LED Mode" control is automatically
 * created and associated with the given hook.
 */


int snd_hda_add_vmaster_hook(struct hda_codec *codec,
			     struct hda_vmaster_mute_hook *hook,
			     bool expose_enum_ctl)
{
	struct snd_kcontrol *kctl;

	if (!hook->hook || !hook->sw_kctl)
		return 0;
	hook->codec = codec;
	hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
	snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook);
	if (!expose_enum_ctl)
		return 0;
	kctl = snd_ctl_new1(&vmaster_mute_mode, hook);
	if (!kctl)
		return -ENOMEM;
	return snd_hda_ctl_add(codec, 0, kctl);
}
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Total 98 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_add_vmaster_hook);

/**
 * snd_hda_sync_vmaster_hook - Sync vmaster hook
 * @hook: the vmaster hook
 *
 * Call the hook with the current value for synchronization.
 * Should be called in init callback.
 */


void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook)
{
	if (!hook->hook || !hook->codec)
		return;
	/* don't call vmaster hook in the destructor since it might have
         * been already destroyed
         */
	if (hook->codec->bus->shutdown)
		return;
	snd_ctl_sync_vmaster_hook(hook->sw_kctl);
}
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Total 42 100.00% 2 100.00%


EXPORT_SYMBOL_GPL(snd_hda_sync_vmaster_hook);


/**
 * snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch
 * @kcontrol: referred ctl element
 * @uinfo: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
 */


int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_info *uinfo)
{
	int chs = get_amp_channels(kcontrol);

	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = chs == 3 ? 2 : 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}
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jaroslav kysela jaroslav kysela 60 93.75% 1 50.00%
takashi iwai takashi iwai 4 6.25% 1 50.00%
Total 64 100.00% 2 100.00%


EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_info);

/**
 * snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch
 * @kcontrol: ctl element
 * @ucontrol: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
 */


int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	hda_nid_t nid = get_amp_nid(kcontrol);
	int chs = get_amp_channels(kcontrol);
	int dir = get_amp_direction(kcontrol);
	int idx = get_amp_index(kcontrol);
	long *valp = ucontrol->value.integer.value;

	if (chs & 1)
		*valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
			   HDA_AMP_MUTE) ? 0 : 1;
	if (chs & 2)
		*valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
			 HDA_AMP_MUTE) ? 0 : 1;
	return 0;
}
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jaroslav kysela jaroslav kysela 127 95.49% 1 33.33%
takashi iwai takashi iwai 6 4.51% 2 66.67%
Total 133 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get);

/**
 * snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch
 * @kcontrol: ctl element
 * @ucontrol: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
 */


int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	hda_nid_t nid = get_amp_nid(kcontrol);
	int chs = get_amp_channels(kcontrol);
	int dir = get_amp_direction(kcontrol);
	int idx = get_amp_index(kcontrol);
	long *valp = ucontrol->value.integer.value;
	int change = 0;

	if (chs & 1) {
		change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
						  HDA_AMP_MUTE,
						  *valp ? 0 : HDA_AMP_MUTE);
		valp++;
	}
	if (chs & 2)
		change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
						   HDA_AMP_MUTE,
						   *valp ? 0 : HDA_AMP_MUTE);
	hda_call_check_power_status(codec, nid);
	return change;
}
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jaroslav kysela jaroslav kysela 119 79.87% 1 12.50%
takashi iwai takashi iwai 24 16.11% 6 75.00%
nicolas graziano nicolas graziano 6 4.03% 1 12.50%
Total 149 100.00% 8 100.00%


EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put);

/*
 * bound volume controls
 *
 * bind multiple volumes (# indices, from 0)
 */


#define AMP_VAL_IDX_SHIFT	19

#define AMP_VAL_IDX_MASK	(0x0f<<19)

/**
 * snd_hda_mixer_bind_switch_get - Get callback for a bound volume control
 * @kcontrol: ctl element
 * @ucontrol: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_BIND_MUTE*() macros.
 */


int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	unsigned long pval;
	int err;

	mutex_lock(&codec->control_mutex);
	pval = kcontrol->private_value;
	kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */
	err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
	kcontrol->private_value = pval;
	mutex_unlock(&codec->control_mutex);
	return err;
}
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takashi iwai takashi iwai 78 95.12% 2 50.00%
wu fengguang wu fengguang 2 2.44% 1 25.00%
ingo molnar ingo molnar 2 2.44% 1 25.00%
Total 82 100.00% 4 100.00%


EXPORT_SYMBOL_GPL(snd_hda_mixer_bind_switch_get);

/**
 * snd_hda_mixer_bind_switch_put - Put callback for a bound volume control
 * @kcontrol: ctl element
 * @ucontrol: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_BIND_MUTE*() macros.
 */


int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	unsigned long pval;
	int i, indices, err = 0, change = 0;

	mutex_lock(&codec->control_mutex);
	pval = kcontrol->private_value;
	indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
	for (i = 0; i < indices; i++) {
		kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) |
			(i << AMP_VAL_IDX_SHIFT);
		err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
		if (err < 0)
			break;
		change |= err;
	}
	kcontrol->private_value = pval;
	mutex_unlock(&codec->control_mutex);
	return err < 0 ? err : change;
}
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takashi iwai takashi iwai 137 97.16% 2 50.00%
ingo molnar ingo molnar 2 1.42% 1 25.00%
wu fengguang wu fengguang 2 1.42% 1 25.00%
Total 141 100.00% 4 100.00%


EXPORT_SYMBOL_GPL(snd_hda_mixer_bind_switch_put);

/**
 * snd_hda_mixer_bind_ctls_info - Info callback for a generic bound control
 * @kcontrol: referred ctl element
 * @uinfo: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_BIND_VOL() or HDA_BIND_SW() macros.
 */


int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_info *uinfo)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct hda_bind_ctls *c;
	int err;

	mutex_lock(&codec->control_mutex);
	c = (struct hda_bind_ctls *)kcontrol->private_value;
	kcontrol->private_value = *c->values;
	err = c->ops->info(kcontrol, uinfo);
	kcontrol->private_value = (long)c;
	mutex_unlock(&codec->control_mutex);
	return err;
}
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takashi iwai takashi iwai 85 90.43% 1 33.33%
serge suchkov serge suchkov 7 7.45% 1 33.33%
wu fengguang wu fengguang 2 2.13% 1 33.33%
Total 94 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_mixer_bind_ctls_info);

/**
 * snd_hda_mixer_bind_ctls_get - Get callback for a generic bound control
 * @kcontrol: ctl element
 * @ucontrol: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_BIND_VOL() or HDA_BIND_SW() macros.
 */


int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct hda_bind_ctls *c;
	int err;

	mutex_lock(&codec->control_mutex);
	c = (struct hda_bind_ctls *)kcontrol->private_value;
	kcontrol->private_value = *c->values;
	err = c->ops->get(kcontrol, ucontrol);
	kcontrol->private_value = (long)c;
	mutex_unlock(&codec->control_mutex);
	return err;
}
Contributors
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takashi iwai takashi iwai 85 90.43% 1 33.33%
serge suchkov serge suchkov 7 7.45% 1 33.33%
wu fengguang wu fengguang 2 2.13% 1 33.33%
Total 94 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_mixer_bind_ctls_get);

/**
 * snd_hda_mixer_bind_ctls_put - Put callback for a generic bound control
 * @kcontrol: ctl element
 * @ucontrol: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_BIND_VOL() or HDA_BIND_SW() macros.
 */


int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct hda_bind_ctls *c;
	unsigned long *vals;
	int err = 0, change = 0;

	mutex_lock(&codec->control_mutex);
	c = (struct hda_bind_ctls *)kcontrol->private_value;
	for (vals = c->values; *vals; vals++) {
		kcontrol->private_value = *vals;
		err = c->ops->put(kcontrol, ucontrol);
		if (err < 0)
			break;
		change |= err;
	}
	kcontrol->private_value = (long)c;
	mutex_unlock(&codec->control_mutex);
	return err < 0 ? err : change;
}
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takashi iwai takashi iwai 127 93.38% 1 33.33%
serge suchkov serge suchkov 7 5.15% 1 33.33%
wu fengguang wu fengguang 2 1.47% 1 33.33%
Total 136 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_mixer_bind_ctls_put);

/**
 * snd_hda_mixer_bind_tlv - TLV callback for a generic bound control
 * @kcontrol: ctl element
 * @op_flag: operation flag
 * @size: byte size of input TLV
 * @tlv: TLV data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_BIND_VOL() macro.
 */


int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag,
			   unsigned int size, unsigned int __user *tlv)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct hda_bind_ctls *c;
	int err;

	mutex_lock(&codec->control_mutex);
	c = (struct hda_bind_ctls *)kcontrol->private_value;
	kcontrol->private_value = *c->values;
	err = c->ops->tlv(kcontrol, op_flag, size, tlv);
	kcontrol->private_value = (long)c;
	mutex_unlock(&codec->control_mutex);
	return err;
}
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takashi iwai takashi iwai 97 91.51% 1 33.33%
serge suchkov serge suchkov 7 6.60% 1 33.33%
wu fengguang wu fengguang 2 1.89% 1 33.33%
Total 106 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_mixer_bind_tlv);


struct hda_ctl_ops snd_hda_bind_vol = {
	.info = snd_hda_mixer_amp_volume_info,
	.get = snd_hda_mixer_amp_volume_get,
	.put = snd_hda_mixer_amp_volume_put,
	.tlv = snd_hda_mixer_amp_tlv
};

EXPORT_SYMBOL_GPL(snd_hda_bind_vol);


struct hda_ctl_ops snd_hda_bind_sw = {
	.info = snd_hda_mixer_amp_switch_info,
	.get = snd_hda_mixer_amp_switch_get,
	.put = snd_hda_mixer_amp_switch_put,
	.tlv = snd_hda_mixer_amp_tlv
};

EXPORT_SYMBOL_GPL(snd_hda_bind_sw);

/*
 * SPDIF out controls
 */



static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
	uinfo->count = 1;
	return 0;
}

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jaroslav kysela jaroslav kysela 27 87.10% 1 50.00%
takashi iwai takashi iwai 4 12.90% 1 50.00%
Total 31 100.00% 2 100.00%



static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
					   IEC958_AES0_NONAUDIO |
					   IEC958_AES0_CON_EMPHASIS_5015 |
					   IEC958_AES0_CON_NOT_COPYRIGHT;
	ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
					   IEC958_AES1_CON_ORIGINAL;
	return 0;
}

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Total 53 100.00% 2 100.00%



static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
					   IEC958_AES0_NONAUDIO |
					   IEC958_AES0_PRO_EMPHASIS_5015;
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 32 88.89% 1 50.00%
takashi iwai takashi iwai 4 11.11% 1 50.00%
Total 36 100.00% 2 100.00%



static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	int idx = kcontrol->private_value;
	struct hda_spdif_out *spdif;

	mutex_lock(&codec->spdif_mutex);
	spdif = snd_array_elem(&codec->spdif_out, idx);
	ucontrol->value.iec958.status[0] = spdif->status & 0xff;
	ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff;
	ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff;
	ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff;
	mutex_unlock(&codec->spdif_mutex);

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 97 65.10% 1 25.00%
stephen warren stephen warren 28 18.79% 1 25.00%
takashi iwai takashi iwai 24 16.11% 2 50.00%
Total 149 100.00% 4 100.00%

/* convert from SPDIF status bits to HDA SPDIF bits
 * bit 0 (DigEn) is always set zero (to be filled later)
 */


static unsigned short convert_from_spdif_status(unsigned int sbits)
{
	unsigned short val = 0;

	if (sbits & IEC958_AES0_PROFESSIONAL)
		val |= AC_DIG1_PROFESSIONAL;
	if (sbits & IEC958_AES0_NONAUDIO)
		val |= AC_DIG1_NONAUDIO;
	if (sbits & IEC958_AES0_PROFESSIONAL) {
		if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
		    IEC958_AES0_PRO_EMPHASIS_5015)
			val |= AC_DIG1_EMPHASIS;
	} else {
		if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
		    IEC958_AES0_CON_EMPHASIS_5015)
			val |= AC_DIG1_EMPHASIS;
		if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
			val |= AC_DIG1_COPYRIGHT;
		if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
			val |= AC_DIG1_LEVEL;
		val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
	}
	return val;
}

Contributors
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jaroslav kysela jaroslav kysela 110 94.83% 1 50.00%
takashi iwai takashi iwai 6 5.17% 1 50.00%
Total 116 100.00% 2 100.00%

/* convert to SPDIF status bits from HDA SPDIF bits
 */


static unsigned int convert_to_spdif_status(unsigned short val)
{
	unsigned int sbits = 0;

	if (val & AC_DIG1_NONAUDIO)
		sbits |= IEC958_AES0_NONAUDIO;
	if (val & AC_DIG1_PROFESSIONAL)
		sbits |= IEC958_AES0_PROFESSIONAL;
	if (sbits & IEC958_AES0_PROFESSIONAL) {
		if (val & AC_DIG1_EMPHASIS)
			sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
	} else {
		if (val & AC_DIG1_EMPHASIS)
			sbits |= IEC958_AES0_CON_EMPHASIS_5015;
		if (!(val & AC_DIG1_COPYRIGHT))
			sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
		if (val & AC_DIG1_LEVEL)
			sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
		sbits |= val & (0x7f << 8);
	}
	return sbits;
}

Contributors
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jaroslav kysela jaroslav kysela 101 93.52% 1 33.33%
takashi iwai takashi iwai 7 6.48% 2 66.67%
Total 108 100.00% 3 100.00%

/* set digital convert verbs both for the given NID and its slaves */


static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
			int mask, int val)
{
	const hda_nid_t *d;

	snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1,
			       mask, val);
	d = codec->slave_dig_outs;
	if (!d)
		return;
	for (; *d; d++)
		snd_hdac_regmap_update(&codec->core, *d,
				       AC_VERB_SET_DIGI_CONVERT_1, mask, val);
}

Contributors
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takashi iwai takashi iwai 79 100.00% 4 100.00%
Total 79 100.00% 4 100.00%



static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid,
				       int dig1, int dig2)
{
	unsigned int mask = 0;
	unsigned int val = 0;

	if (dig1 != -1) {
		mask |= 0xff;
		val = dig1;
	}
	if (dig2 != -1) {
		mask |= 0xff00;
		val |= dig2 << 8;
	}
	set_dig_out(codec, nid, mask, val);
}

Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 80 100.00% 2 100.00%
Total 80 100.00% 2 100.00%



static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	int idx = kcontrol->private_value;
	struct hda_spdif_out *spdif;
	hda_nid_t nid;
	unsigned short val;
	int change;

	mutex_lock(&codec->spdif_mutex);
	spdif = snd_array_elem(&codec->spdif_out, idx);
	nid = spdif->nid;
	spdif->status = ucontrol->value.iec958.status[0] |
		((unsigned int)ucontrol->value.iec958.status[1] << 8) |
		((unsigned int)ucontrol->value.iec958.status[2] << 16) |
		((unsigned int)ucontrol->value.iec958.status[3] << 24);
	val = convert_from_spdif_status(spdif->status);
	val |= spdif->ctls & 1;
	change = spdif->ctls != val;
	spdif->ctls = val;
	if (change && nid != (u16)-1)
		set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff);
	mutex_unlock(&codec->spdif_mutex);
	return change;
}

Contributors
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jaroslav kysela jaroslav kysela 160 73.06% 2 22.22%
stephen warren stephen warren 28 12.79% 2 22.22%
takashi iwai takashi iwai 25 11.42% 3 33.33%
matthew ranostay matthew ranostay 4 1.83% 1 11.11%
ingo molnar ingo molnar 2 0.91% 1 11.11%
Total 219 100.00% 9 100.00%


#define snd_hda_spdif_out_switch_info	snd_ctl_boolean_mono_info



static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	int idx = kcontrol->private_value;
	struct hda_spdif_out *spdif;

	mutex_lock(&codec->spdif_mutex);
	spdif = snd_array_elem(&codec->spdif_out, idx);
	ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE;
	mutex_unlock(&codec->spdif_mutex);
	return 0;
}

Contributors
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jaroslav kysela jaroslav kysela 39 45.35% 1 20.00%
takashi iwai takashi iwai 25 29.07% 3 60.00%
stephen warren stephen warren 22 25.58% 1 20.00%
Total 86 100.00% 5 100.00%



static inline void set_spdif_ctls(struct hda_codec *codec, hda_nid_t nid,
				  int dig1, int dig2)
{
	set_dig_out_convert(codec, nid, dig1, dig2);
	/* unmute amp switch (if any) */
	if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
	    (dig1 & AC_DIG1_ENABLE))
		snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
					    HDA_AMP_MUTE, 0);
}

Contributors
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stephen warren stephen warren 63 94.03% 1 33.33%
jaroslav kysela jaroslav kysela 3 4.48% 1 33.33%
takashi iwai takashi iwai 1 1.49% 1 33.33%
Total 67 100.00% 3 100.00%



static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	int idx = kcontrol->private_value;
	struct hda_spdif_out *spdif;
	hda_nid_t nid;
	unsigned short val;
	int change;

	mutex_lock(&codec->spdif_mutex);
	spdif = snd_array_elem(&codec->spdif_out, idx);
	nid = spdif->nid;
	val = spdif->ctls & ~AC_DIG1_ENABLE;
	if (ucontrol->value.integer.value[0])
		val |= AC_DIG1_ENABLE;
	change = spdif->ctls != val;
	spdif->ctls = val;
	if (change && nid != (u16)-1)
		set_spdif_ctls(codec, nid, val & 0xff, -1);
	mutex_unlock(&codec->spdif_mutex);
	return change;
}

Contributors
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jaroslav kysela jaroslav kysela 88 58.28% 3 27.27%
takashi iwai takashi iwai 33 21.85% 5 45.45%
stephen warren stephen warren 28 18.54% 2 18.18%
ingo molnar ingo molnar 2 1.32% 1 9.09%
Total 151 100.00% 11 100.00%


static struct snd_kcontrol_new dig_mixes[] = {
	{
		.access = SNDRV_CTL_ELEM_ACCESS_READ,
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
		.info = snd_hda_spdif_mask_info,
		.get = snd_hda_spdif_cmask_get,
        },
	{
		.access = SNDRV_CTL_ELEM_ACCESS_READ,
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
		.info = snd_hda_spdif_mask_info,
		.get = snd_hda_spdif_pmask_get,
        },
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
		.info = snd_hda_spdif_mask_info,
		.get = snd_hda_spdif_default_get,
		.put = snd_hda_spdif_default_put,
        },
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
		.info = snd_hda_spdif_out_switch_info,
		.get = snd_hda_spdif_out_switch_get,
		.put = snd_hda_spdif_out_switch_put,
        },
	{ } /* end */
};

/**
 * snd_hda_create_dig_out_ctls - create Output SPDIF-related controls
 * @codec: the HDA codec
 * @associated_nid: NID that new ctls associated with
 * @cvt_nid: converter NID
 * @type: HDA_PCM_TYPE_*
 * Creates controls related with the digital output.
 * Called from each patch supporting the digital out.
 *
 * Returns 0 if successful, or a negative error code.
 */


int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
				hda_nid_t associated_nid,
				hda_nid_t cvt_nid,
				int type)
{
	int err;
	struct snd_kcontrol *kctl;
	struct snd_kcontrol_new *dig_mix;
	int idx = 0;
	int val = 0;
	const int spdif_index = 16;
	struct hda_spdif_out *spdif;
	struct hda_bus *bus = codec->bus;

	if (bus->primary_dig_out_type == HDA_PCM_TYPE_HDMI &&
	    type == HDA_PCM_TYPE_SPDIF) {
		idx = spdif_index;
	} else if (bus->primary_dig_out_type == HDA_PCM_TYPE_SPDIF &&
		   type == HDA_PCM_TYPE_HDMI) {
		/* suppose a single SPDIF device */
		for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
			kctl = find_mixer_ctl(codec, dig_mix->name, 0, 0);
			if (!kctl)
				break;
			kctl->id.index = spdif_index;
		}
		bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI;
	}
	if (!bus->primary_dig_out_type)
		bus->primary_dig_out_type = type;

	idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", idx);
	if (idx < 0) {
		codec_err(codec, "too many IEC958 outputs\n");
		return -EBUSY;
	}
	spdif = snd_array_new(&codec->spdif_out);
	if (!spdif)
		return -ENOMEM;
	for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
		kctl = snd_ctl_new1(dig_mix, codec);
		if (!kctl)
			return -ENOMEM;
		kctl->id.index = idx;
		kctl->private_value = codec->spdif_out.used - 1;
		err = snd_hda_ctl_add(codec, associated_nid, kctl);
		if (err < 0)
			return err;
	}
	spdif->nid = cvt_nid;
	snd_hdac_regmap_read(&codec->core, cvt_nid,
			     AC_VERB_GET_DIGI_CONVERT_1, &val);
	spdif->ctls = val;
	spdif->status = convert_to_spdif_status(spdif->ctls);
	return 0;
}
Contributors
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takashi iwai takashi iwai 194 60.25% 10 58.82%
jaroslav kysela jaroslav kysela 81 25.16% 3 17.65%
stephen warren stephen warren 37 11.49% 2 11.76%
mengdong lin mengdong lin 9 2.80% 1 5.88%
andrew paprocki andrew paprocki 1 0.31% 1 5.88%
Total 322 100.00% 17 100.00%


EXPORT_SYMBOL_GPL(snd_hda_create_dig_out_ctls);

/**
 * snd_hda_spdif_out_of_nid - get the hda_spdif_out entry from the given NID
 * @codec: the HDA codec
 * @nid: widget NID
 *
 * call within spdif_mutex lock
 */


struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
					       hda_nid_t nid)
{
	int i;
	for (i = 0; i < codec->spdif_out.used; i++) {
		struct hda_spdif_out *spdif =
				snd_array_elem(&codec->spdif_out, i);
		if (spdif->nid == nid)
			return spdif;
	}
	return NULL;
}
Contributors
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stephen warren stephen warren 66 100.00% 1 100.00%
Total 66 100.00% 1 100.00%


EXPORT_SYMBOL_GPL(snd_hda_spdif_out_of_nid);

/**
 * snd_hda_spdif_ctls_unassign - Unassign the given SPDIF ctl
 * @codec: the HDA codec
 * @idx: the SPDIF ctl index
 *
 * Unassign the widget from the given SPDIF control.
 */


void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx)
{
	struct hda_spdif_out *spdif;

	mutex_lock(&codec->spdif_mutex);
	spdif = snd_array_elem(&codec->spdif_out, idx);
	spdif->nid = (u16)-1;
	mutex_unlock(&codec->spdif_mutex);
}
Contributors
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stephen warren stephen warren 45 80.36% 1 33.33%
takashi iwai takashi iwai 10 17.86% 1 33.33%
jaroslav kysela jaroslav kysela 1 1.79% 1 33.33%
Total 56 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_unassign);

/**
 * snd_hda_spdif_ctls_assign - Assign the SPDIF controls to the given NID
 * @codec: the HDA codec
 * @idx: the SPDIF ctl idx
 * @nid: widget NID
 *
 * Assign the widget to the SPDIF control with the given index.
 */


void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid)
{
	struct hda_spdif_out *spdif;
	unsigned short val;

	mutex_lock(&codec->spdif_mutex);
	spdif = snd_array_elem(&codec->spdif_out, idx);
	if (spdif->nid != nid) {
		spdif->nid = nid;
		val = spdif->ctls;
		set_spdif_ctls(codec, nid, val & 0xff, (val >> 8) & 0xff);
	}
	mutex_unlock(&codec->spdif_mutex);
}
Contributors
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stephen warren stephen warren 43 45.74% 1 11.11%
jaroslav kysela jaroslav kysela 34 36.17% 3 33.33%
takashi iwai takashi iwai 17 18.09% 5 55.56%
Total 94 100.00% 9 100.00%


EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_assign);

/*
 * SPDIF sharing with analog output
 */


static int spdif_share_sw_get(struct snd_kcontrol *kcontrol,
			      struct snd_ctl_elem_value *ucontrol)
{
	struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
	ucontrol->value.integer.value[0] = mout->share_spdif;
	return 0;
}

Contributors
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takashi iwai takashi iwai 44 100.00% 1 100.00%
Total 44 100.00% 1 100.00%



static int spdif_share_sw_put(struct snd_kcontrol *kcontrol,
			      struct snd_ctl_elem_value *ucontrol)
{
	struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
	mout->share_spdif = !!ucontrol->value.integer.value[0];
	return 0;
}

Contributors
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takashi iwai takashi iwai 46 100.00% 1 100.00%
Total 46 100.00% 1 100.00%


static struct snd_kcontrol_new spdif_share_sw = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "IEC958 Default PCM Playback Switch",
	.info = snd_ctl_boolean_mono_info,
	.get = spdif_share_sw_get,
	.put = spdif_share_sw_put,
};

/**
 * snd_hda_create_spdif_share_sw - create Default PCM switch
 * @codec: the HDA codec
 * @mout: multi-out instance
 */


int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
				  struct hda_multi_out *mout)
{
	struct snd_kcontrol *kctl;

	if (!mout->dig_out_nid)
		return 0;

	kctl = snd_ctl_new1(&spdif_share_sw, mout);
	if (!kctl)
		return -ENOMEM;
	/* ATTENTION: here mout is passed as private_data, instead of codec */
	return snd_hda_ctl_add(codec, mout->dig_out_nid, kctl);
}
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takashi iwai takashi iwai 33 53.23% 2 50.00%
mengdong lin mengdong lin 25 40.32% 1 25.00%
jaroslav kysela jaroslav kysela 4 6.45% 1 25.00%
Total 62 100.00% 4 100.00%


EXPORT_SYMBOL_GPL(snd_hda_create_spdif_share_sw);

/*
 * SPDIF input
 */


#define snd_hda_spdif_in_switch_info	snd_hda_spdif_out_switch_info



static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);

	ucontrol->value.integer.value[0] = codec->spdif_in_enable;
	return 0;
}

Contributors
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jaroslav kysela jaroslav kysela 40 90.91% 1 50.00%
takashi iwai takashi iwai 4 9.09% 1 50.00%
Total 44 100.00% 2 100.00%



static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	hda_nid_t nid = kcontrol->private_value;
	unsigned int val = !!ucontrol->value.integer.value[0];
	int change;

	mutex_lock(&codec->spdif_mutex);
	change = codec->spdif_in_enable != val;
	if (change) {
		codec->spdif_in_enable = val;
		snd_hdac_regmap_write(&codec->core, nid,
				      AC_VERB_SET_DIGI_CONVERT_1, val);
	}
	mutex_unlock(&codec->spdif_mutex);
	return change;
}

Contributors
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jaroslav kysela jaroslav kysela 96 90.57% 1 25.00%
takashi iwai takashi iwai 8 7.55% 2 50.00%
ingo molnar ingo molnar 2 1.89% 1 25.00%
Total 106 100.00% 4 100.00%



static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	hda_nid_t nid = kcontrol->private_value;
	unsigned int val;
	unsigned int sbits;

	snd_hdac_regmap_read(&codec->core, nid,
			     AC_VERB_GET_DIGI_CONVERT_1, &val);
	sbits = convert_to_spdif_status(val);
	ucontrol->value.iec958.status[0] = sbits;
	ucontrol->value.iec958.status[1] = sbits >> 8;
	ucontrol->value.iec958.status[2] = sbits >> 16;
	ucontrol->value.iec958.status[3] = sbits >> 24;
	return 0;
}

Contributors
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jaroslav kysela jaroslav kysela 112 90.32% 1 25.00%
takashi iwai takashi iwai 11 8.87% 2 50.00%
andrew paprocki andrew paprocki 1 0.81% 1 25.00%
Total 124 100.00% 4 100.00%


static struct snd_kcontrol_new dig_in_ctls[] = {
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH),
		.info = snd_hda_spdif_in_switch_info,
		.get = snd_hda_spdif_in_switch_get,
		.put = snd_hda_spdif_in_switch_put,
        },
	{
		.access = SNDRV_CTL_ELEM_ACCESS_READ,
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
		.info = snd_hda_spdif_mask_info,
		.get = snd_hda_spdif_in_status_get,
        },
	{ } /* end */
};

/**
 * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
 * @codec: the HDA codec
 * @nid: audio in widget NID
 *
 * Creates controls related with the SPDIF input.
 * Called from each patch supporting the SPDIF in.
 *
 * Returns 0 if successful, or a negative error code.
 */


int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
{
	int err;
	struct snd_kcontrol *kctl;
	struct snd_kcontrol_new *dig_mix;
	int idx;

	idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0);
	if (idx < 0) {
		codec_err(codec, "too many IEC958 inputs\n");
		return -EBUSY;
	}
	for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
		kctl = snd_ctl_new1(dig_mix, codec);
		if (!kctl)
			return -ENOMEM;
		kctl->private_value = nid;
		err = snd_hda_ctl_add(codec, nid, kctl);
		if (err < 0)
			return err;
	}
	codec->spdif_in_enable =
		snd_hda_codec_read(codec, nid, 0,
				   AC_VERB_GET_DIGI_CONVERT_1, 0) &
		AC_DIG1_ENABLE;
	return 0;
}
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jaroslav kysela jaroslav kysela 87 62.14% 2 18.18%
takashi iwai takashi iwai 52 37.14% 8 72.73%
andrew paprocki andrew paprocki 1 0.71% 1 9.09%
Total 140 100.00% 11 100.00%


EXPORT_SYMBOL_GPL(snd_hda_create_spdif_in_ctls);

/**
 * snd_hda_codec_set_power_to_all - Set the power state to all widgets
 * @codec: the HDA codec
 * @fg: function group (not used now)
 * @power_state: the power state to set (AC_PWRST_*)
 *
 * Set the given power state to all widgets that have the power control.
 * If the codec has power_filter set, it evaluates the power state and
 * filter out if it's unchanged as D3.
 */


void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
				    unsigned int power_state)
{
	hda_nid_t nid;

	for_each_hda_codec_node(nid, codec) {
		unsigned int wcaps = get_wcaps(codec, nid);
		unsigned int state = power_state;
		if (!(wcaps & AC_WCAP_POWER))
			continue;
		if (codec->power_filter) {
			state = codec->power_filter(codec, nid, power_state);
			if (state != power_state && power_state == AC_PWRST_D3)
				continue;
		}
		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
				    state);
	}
}
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takashi iwai takashi iwai 100 100.00% 6 100.00%
Total 100 100.00% 6 100.00%


EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all);

/*
 * wait until the state is reached, returns the current state
 */


static unsigned int hda_sync_power_state(struct hda_codec *codec,
					 hda_nid_t fg,
					 unsigned int power_state)
{
	unsigned long end_time = jiffies + msecs_to_jiffies(500);
	unsigned int state, actual_state;

	for (;;) {
		state = snd_hda_codec_read(codec, fg, 0,
					   AC_VERB_GET_POWER_STATE, 0);
		if (state & AC_PWRST_ERROR)
			break;
		actual_state = (state >> 4) & 0x0f;
		if (actual_state == power_state)
			break;
		if (time_after_eq(jiffies, end_time))
			break;
		/* wait until the codec reachs to the target state */
		msleep(1);
	}
	return state;
}

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takashi iwai takashi iwai 101 100.00% 3 100.00%
Total 101 100.00% 3 100.00%

/**
 * snd_hda_codec_eapd_power_filter - A power filter callback for EAPD
 * @codec: the HDA codec
 * @nid: widget NID
 * @power_state: power state to evalue
 *
 * Don't power down the widget if it controls eapd and EAPD_BTLENABLE is set.
 * This can be used a codec power_filter callback.
 */


unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
					     hda_nid_t nid,
					     unsigned int power_state)
{
	if (nid == codec->core.afg || nid == codec->core.mfg)
		return power_state;
	if (power_state == AC_PWRST_D3 &&
	    get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_PIN &&
	    (snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) {
		int eapd = snd_hda_codec_read(codec, nid, 0,
					      AC_VERB_GET_EAPD_BTLENABLE, 0);
		if (eapd & 0x02)
			return AC_PWRST_D0;
	}
	return power_state;
}
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takashi iwai takashi iwai 98 100.00% 4 100.00%
Total 98 100.00% 4 100.00%


EXPORT_SYMBOL_GPL(snd_hda_codec_eapd_power_filter);

/*
 * set power state of the codec, and return the power state
 */


static unsigned int hda_set_power_state(struct hda_codec *codec,
					unsigned int power_state)
{
	hda_nid_t fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
	int count;
	unsigned int state;
	int flags = 0;

	/* this delay seems necessary to avoid click noise at power-down */
	if (power_state == AC_PWRST_D3) {
		if (codec->depop_delay < 0)
			msleep(codec_has_epss(codec) ? 10 : 100);
		else if (codec->depop_delay > 0)
			msleep(codec->depop_delay);
		flags = HDA_RW_NO_RESPONSE_FALLBACK;
	}

	/* repeat power states setting at most 10 times*/
	for (count = 0; count < 10; count++) {
		if (codec->patch_ops.set_power_state)
			codec->patch_ops.set_power_state(codec, fg,
							 power_state);
		else {
			state = power_state;
			if (codec->power_filter)
				state = codec->power_filter(codec, fg, state);
			if (state == power_state || power_state != AC_PWRST_D3)
				snd_hda_codec_read(codec, fg, flags,
						   AC_VERB_SET_POWER_STATE,
						   state);
			snd_hda_codec_set_power_to_all(codec, fg, power_state);
		}
		state = hda_sync_power_state(codec, fg, power_state);
		if (!(state & AC_PWRST_ERROR))
			break;
	}

	return state;
}

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takashi iwai takashi iwai 145 66.82% 8 66.67%
wang xingchao wang xingchao 47 21.66% 2 16.67%
mengdong lin mengdong lin 25 11.52% 2 16.67%
Total 217 100.00% 12 100.00%

/* sync power states of all widgets;
 * this is called at the end of codec parsing
 */


static void sync_power_up_states(struct hda_codec *codec)
{
	hda_nid_t nid;

	/* don't care if no filter is used */
	if (!codec->power_filter)
		return;

	for_each_hda_codec_node(nid, codec) {
		unsigned int wcaps = get_wcaps(codec, nid);
		unsigned int target;
		if (!(wcaps & AC_WCAP_POWER))
			continue;
		target = codec->power_filter(codec, nid, AC_PWRST_D0);
		if (target == AC_PWRST_D0)
			continue;
		if (!snd_hda_check_power_state(codec, nid, target))
			snd_hda_codec_write(codec, nid, 0,
					    AC_VERB_SET_POWER_STATE, target);
	}
}

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takashi iwai takashi iwai 101 100.00% 4 100.00%
Total 101 100.00% 4 100.00%

#ifdef CONFIG_SND_HDA_RECONFIG
/* execute additional init verbs */


static void hda_exec_init_verbs(struct hda_codec *codec)
{
	if (codec->init_verbs.list)
		snd_hda_sequence_write(codec, codec->init_verbs.list);
}
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Total 30 100.00% 1 100.00%

#else


static inline void hda_exec_init_verbs(struct hda_codec *codec) {}
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Total 11 100.00% 1 100.00%

#endif

#ifdef CONFIG_PM
/* update the power on/off account with the current jiffies */


static void update_power_acct(struct hda_codec *codec, bool on)
{
	unsigned long delta = jiffies - codec->power_jiffies;

	if (on)
		codec->power_on_acct += delta;
	else
		codec->power_off_acct += delta;
	codec->power_jiffies += delta;
}

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Total 47 100.00% 1 100.00%



void snd_hda_update_power_acct(struct hda_codec *codec)
{
	update_power_acct(codec, hda_codec_is_power_on(codec));
}

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takashi iwai takashi iwai 20 100.00% 1 100.00%
Total 20 100.00% 1 100.00%

/*
 * call suspend and power-down; used both from PM and power-save
 * this function returns the power state in the end
 */


static unsigned int hda_call_codec_suspend(struct hda_codec *codec)
{
	unsigned int state;

	atomic_inc(&codec->core.in_pm);

	if (codec->patch_ops.suspend)
		codec->patch_ops.suspend(codec);
	hda_cleanup_all_streams(codec);
	state = hda_set_power_state(codec, AC_PWRST_D3);
	update_power_acct(codec, true);
	atomic_dec(&codec->core.in_pm);
	return state;
}

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takashi iwai takashi iwai 71 92.21% 8 88.89%
jaroslav kysela jaroslav kysela 6 7.79% 1 11.11%
Total 77 100.00% 9 100.00%

/*
 * kick up codec; used both from PM and power-save
 */


static void hda_call_codec_resume(struct hda_codec *codec)
{
	atomic_inc(&codec->core.in_pm);

	if (codec->core.regmap)
		regcache_mark_dirty(codec->core.regmap);

	codec->power_jiffies = jiffies;

	hda_set_power_state(codec, AC_PWRST_D0);
	restore_shutup_pins(codec);
	hda_exec_init_verbs(codec);
	snd_hda_jack_set_dirty_all(codec);
	if (codec->patch_ops.resume)
		codec->patch_ops.resume(codec);
	else {
		if (codec->patch_ops.init)
			codec->patch_ops.init(codec);
		if (codec->core.regmap)
			regcache_sync(codec->core.regmap);
	}

	if (codec->jackpoll_interval)
		hda_jackpoll_work(&codec->jackpoll_work.work);
	else
		snd_hda_jack_report_sync(codec);
	atomic_dec(&codec->core.in_pm);
}

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takashi iwai takashi iwai 123 80.92% 12 85.71%
david henningsson david henningsson 17 11.18% 1 7.14%
jaroslav kysela jaroslav kysela 12 7.89% 1 7.14%
Total 152 100.00% 14 100.00%



static int hda_codec_runtime_suspend(struct device *dev)
{
	struct hda_codec *codec = dev_to_hda_codec(dev);
	struct hda_pcm *pcm;
	unsigned int state;

	cancel_delayed_work_sync(&codec->jackpoll_work);
	list_for_each_entry(pcm, &codec->pcm_list_head, list)
		snd_pcm_suspend_all(pcm->pcm);
	state = hda_call_codec_suspend(codec);
	if (codec_has_clkstop(codec) && codec_has_epss(codec) &&
	    (state & AC_PWRST_CLK_STOP_OK))
		snd_hdac_codec_link_down(&codec->core);
	snd_hdac_link_power(&codec->core, false);
	return 0;
}

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takashi iwai takashi iwai 89 89.90% 6 85.71%
mengdong lin mengdong lin 10 10.10% 1 14.29%
Total 99 100.00% 7 100.00%



static int hda_codec_runtime_resume(struct device *dev)
{
	struct hda_codec *codec = dev_to_hda_codec(dev);

	snd_hdac_link_power(&codec->core, true);
	snd_hdac_codec_link_up(&codec->core);
	hda_call_codec_resume(codec);
	pm_runtime_mark_last_busy(dev);
	return 0;
}
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takashi iwai takashi iwai 42 80.77% 5 83.33%
mengdong lin mengdong lin 10 19.23% 1 16.67%
Total 52 100.00% 6 100.00%

#endif /* CONFIG_PM */

/* referred in hda_bind.c */

const struct dev_pm_ops hda_codec_driver_pm = {
	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
				pm_runtime_force_resume)
	SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume,
			   NULL)
};

/*
 * add standard channel maps if not specified
 */


static int add_std_chmaps(struct hda_codec *codec)
{
	struct hda_pcm *pcm;
	int str, err;

	list_for_each_entry(pcm, &codec->pcm_list_head, list) {
		for (str = 0; str < 2; str++) {
			struct hda_pcm_stream *hinfo = &pcm->stream[str];
			struct snd_pcm_chmap *chmap;
			const struct snd_pcm_chmap_elem *elem;

			if (!pcm->pcm || pcm->own_chmap || !hinfo->substreams)
				continue;
			elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps;
			err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem,
						     hinfo->channels_max,
						     0, &chmap);
			if (err < 0)
				return err;
			chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
		}
	}
	return 0;
}

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takashi iwai takashi iwai 134 96.40% 3 60.00%
markus osterhoff markus osterhoff 3 2.16% 1 20.00%
sudip mukherjee sudip mukherjee 2 1.44% 1 20.00%
Total 139 100.00% 5 100.00%

/* default channel maps for 2.1 speakers;
 * since HD-audio supports only stereo, odd number channels are omitted
 */

const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = {
	{ .channels = 2,
	  .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
	{ .channels = 4,
	  .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
		   SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } },
	{ }
};

EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps);



int snd_hda_codec_build_controls(struct hda_codec *codec)
{
	int err = 0;
	hda_exec_init_verbs(codec);
	/* continue to initialize... */
	if (codec->patch_ops.init)
		err = codec->patch_ops.init(codec);
	if (!err && codec->patch_ops.build_controls)
		err = codec->patch_ops.build_controls(codec);
	if (err < 0)
		return err;

	/* we create chmaps here instead of build_pcms */
	err = add_std_chmaps(codec);
	if (err < 0)
		return err;

	if (codec->jackpoll_interval)
		hda_jackpoll_work(&codec->jackpoll_work.work);
	else
		snd_hda_jack_report_sync(codec); /* call at the last init point */
	sync_power_up_states(codec);
	return 0;
}

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jaroslav kysela jaroslav kysela 67 56.30% 1 11.11%
takashi iwai takashi iwai 40 33.61% 7 77.78%
david henningsson david henningsson 12 10.08% 1 11.11%
Total 119 100.00% 9 100.00%

/*
 * PCM stuff
 */


static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
				      struct hda_codec *codec,
				      struct snd_pcm_substream *substream)
{
	return 0;
}

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jaroslav kysela jaroslav kysela 22 91.67% 1 50.00%
takashi iwai takashi iwai 2 8.33% 1 50.00%
Total 24 100.00% 2 100.00%



static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
				   struct hda_codec *codec,
				   unsigned int stream_tag,
				   unsigned int format,
				   struct snd_pcm_substream *substream)
{
	snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
	return 0;
}

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jaroslav kysela jaroslav kysela 45 95.74% 1 50.00%
takashi iwai takashi iwai 2 4.26% 1 50.00%
Total 47 100.00% 2 100.00%



static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
				   struct hda_codec *codec,
				   struct snd_pcm_substream *substream)
{
	snd_hda_codec_cleanup_stream(codec, hinfo->nid);
	return 0;
}

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jaroslav kysela jaroslav kysela 30 90.91% 1 33.33%
takashi iwai takashi iwai 3 9.09% 2 66.67%
Total 33 100.00% 3 100.00%



static int set_pcm_default_values(struct hda_codec *codec,
				  struct hda_pcm_stream *info)
{
	int err;

	/* query support PCM information from the given NID */
	if (info->nid && (!info->rates || !info->formats)) {
		err = snd_hda_query_supported_pcm(codec, info->nid,
				info->rates ? NULL : &info->rates,
				info->formats ? NULL : &info->formats,
				info->maxbps ? NULL : &info->maxbps);
		if (err < 0)
			return err;
	}
	if (info->ops.open == NULL)
		info->ops.open = hda_pcm_default_open_close;
	if (info->ops.close == NULL)
		info->ops.close = hda_pcm_default_open_close;
	if (info->ops.prepare == NULL) {
		if (snd_BUG_ON(!info->nid))
			return -EINVAL;
		info->ops.prepare = hda_pcm_default_prepare;
	}
	if (info->ops.cleanup == NULL) {
		if (snd_BUG_ON(!info->nid))
			return -EINVAL;
		info->ops.cleanup = hda_pcm_default_cleanup;
	}
	return 0;
}

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jaroslav kysela jaroslav kysela 171 85.50% 2 50.00%
takashi iwai takashi iwai 29 14.50% 2 50.00%
Total 200 100.00% 4 100.00%

/*
 * codec prepare/cleanup entries
 */
/**
 * snd_hda_codec_prepare - Prepare a stream
 * @codec: the HDA codec
 * @hinfo: PCM information
 * @stream: stream tag to assign
 * @format: format id to assign
 * @substream: PCM substream to assign
 *
 * Calls the prepare callback set by the codec with the given arguments.
 * Clean up the inactive streams when successful.
 */


int snd_hda_codec_prepare(struct hda_codec *codec,
			  struct hda_pcm_stream *hinfo,
			  unsigned int stream,
			  unsigned int format,
			  struct snd_pcm_substream *substream)
{
	int ret;
	mutex_lock(&codec->bus->prepare_mutex);
	if (hinfo->ops.prepare)
		ret = hinfo->ops.prepare(hinfo, codec, stream, format,
					 substream);
	else
		ret = -ENODEV;
	if (ret >= 0)
		purify_inactive_streams(codec);
	mutex_unlock(&codec->bus->prepare_mutex);
	return ret;
}
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Total 98 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_codec_prepare);

/**
 * snd_hda_codec_cleanup - Prepare a stream
 * @codec: the HDA codec
 * @hinfo: PCM information
 * @substream: PCM substream
 *
 * Calls the cleanup callback set by the codec with the given arguments.
 */


void snd_hda_codec_cleanup(struct hda_codec *codec,
			   struct hda_pcm_stream *hinfo,
			   struct snd_pcm_substream *substream)
{
	mutex_lock(&codec->bus->prepare_mutex);
	if (hinfo->ops.cleanup)
		hinfo->ops.cleanup(hinfo, codec, substream);
	mutex_unlock(&codec->bus->prepare_mutex);
}
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Total 61 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup);

/* global */

const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = {
	"Audio", "SPDIF", "HDMI", "Modem"
};

/*
 * get the empty PCM device number to assign
 */


static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type)
{
	/* audio device indices; not linear to keep compatibility */
	/* assigned to static slots up to dev#10; if more needed, assign
         * the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y)
         */
	static int audio_idx[HDA_PCM_NTYPES][5] = {
		[HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 },
		[HDA_PCM_TYPE_SPDIF] = { 1, -1 },
		[HDA_PCM_TYPE_HDMI]  = { 3, 7, 8, 9, -1 },
		[HDA_PCM_TYPE_MODEM] = { 6, -1 },
        };
	int i;

	if (type >= HDA_PCM_NTYPES) {
		dev_err(bus->card->dev, "Invalid PCM type %d\n", type);
		return -EINVAL;
	}

	for (i = 0; audio_idx[type][i] >= 0; i++) {
#ifndef CONFIG_SND_DYNAMIC_MINORS
		if (audio_idx[type][i] >= 8)
			break;
#endif
		if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits))
			return audio_idx[type][i];
	}

#ifdef CONFIG_SND_DYNAMIC_MINORS
	/* non-fixed slots starting from 10 */
	for (i = 10; i < 32; i++) {
		if (!test_and_set_bit(i, bus->pcm_dev_bits))
			return i;
	}
#endif

	dev_warn(bus->card->dev, "Too many %s devices\n",
		snd_hda_pcm_type_name[type]);
#ifndef CONFIG_SND_DYNAMIC_MINORS
	dev_warn(bus->card->dev,
		 "Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y\n");
#endif
	return -EAGAIN;
}

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fengguang wu fengguang wu 72 28.69% 2 25.00%
jaroslav kysela jaroslav kysela 1 0.40% 1 12.50%
Total 251 100.00% 8 100.00%

/* call build_pcms ops of the given codec and set up the default parameters */


int snd_hda_codec_parse_pcms(struct hda_codec *codec)
{
	struct hda_pcm *cpcm;
	int err;

	if (!list_empty(&codec->pcm_list_head))
		return 0; /* already parsed */

	if (!codec->patch_ops.build_pcms)
		return 0;

	err = codec->patch_ops.build_pcms(codec);
	if (err < 0) {
		codec_err(codec, "cannot build PCMs for #%d (error %d)\n",
			  codec->core.addr, err);
		return err;
	}

	list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
		int stream;

		for (stream = 0; stream < 2; stream++) {
			struct hda_pcm_stream *info = &cpcm->stream[stream];

			if (!info->substreams)
				continue;
			err = set_pcm_default_values(codec, info);
			if (err < 0) {
				codec_warn(codec,
					   "fail to setup default for PCM %s\n",
					   cpcm->name);
				return err;
			}
		}
	}

	return 0;
}

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/* assign all PCMs of the given codec */


int snd_hda_codec_build_pcms(struct hda_codec *codec)
{
	struct hda_bus *bus = codec->bus;
	struct hda_pcm *cpcm;
	int dev, err;

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

	/* attach a new PCM streams */
	list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
		if (cpcm->pcm)
			continue; /* already attached */
		if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
			continue; /* no substreams assigned */

		dev = get_empty_pcm_device(bus, cpcm->pcm_type);
		if (dev < 0)
			continue; /* no fatal error */
		cpcm->device = dev;
		err =  snd_hda_attach_pcm_stream(bus, codec, cpcm);
		if (err < 0) {
			codec_err(codec,
				  "cannot attach PCM stream %d for codec #%d\n",
				  dev, codec->core.addr);
			continue; /* no fatal error */
		}
	}

	return 0;
}

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takashi iwai takashi iwai 112 73.68% 12 92.31%
jaroslav kysela jaroslav kysela 40 26.32% 1 7.69%
Total 152 100.00% 13 100.00%

/**
 * snd_hda_add_new_ctls - create controls from the array
 * @codec: the HDA codec
 * @knew: the array of struct snd_kcontrol_new
 *
 * This helper function creates and add new controls in the given array.
 * The array must be terminated with an empty entry as terminator.
 *
 * Returns 0 if successful, or a negative error code.
 */


int snd_hda_add_new_ctls(struct hda_codec *codec,
			 const struct snd_kcontrol_new *knew)
{
	int err;

	for (; knew->name; knew++) {
		struct snd_kcontrol *kctl;
		int addr = 0, idx = 0;
		if (knew->iface == -1)	/* skip this codec private value */
			continue;
		for (;;) {
			kctl = snd_ctl_new1(knew, codec);
			if (!kctl)
				return -ENOMEM;
			if (addr > 0)
				kctl->id.device = addr;
			if (idx > 0)
				kctl->id.index = idx;
			err = snd_hda_ctl_add(codec, 0, kctl);
			if (!err)
				break;
			/* try first with another device index corresponding to
                         * the codec addr; if it still fails (or it's the
                         * primary codec), then try another control index
                         */
			if (!addr && codec->core.addr)
				addr = codec->core.addr;
			else if (!idx && !knew->index) {
				idx = find_empty_mixer_ctl_idx(codec,
							       knew->name, 0);
				if (idx <= 0)
					return err;
			} else
				return err;
		}
	}
	return 0;
}
Contributors
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takashi iwai takashi iwai 174 92.55% 6 66.67%
jaroslav kysela jaroslav kysela 14 7.45% 3 33.33%
Total 188 100.00% 9 100.00%


EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls);

#ifdef CONFIG_PM


static void codec_set_power_save(struct hda_codec *codec, int delay)
{
	struct device *dev = hda_codec_dev(codec);

	if (delay == 0 && codec->auto_runtime_pm)
		delay = 3000;

	if (delay > 0) {
		pm_runtime_set_autosuspend_delay(dev, delay);
		pm_runtime_use_autosuspend(dev);
		pm_runtime_allow(dev);
		if (!pm_runtime_suspended(dev))
			pm_runtime_mark_last_busy(dev);
	} else {
		pm_runtime_dont_use_autosuspend(dev);
		pm_runtime_forbid(dev);
	}
}

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takashi iwai takashi iwai 75 84.27% 6 85.71%
han lu han lu 14 15.73% 1 14.29%
Total 89 100.00% 7 100.00%

/**
 * snd_hda_set_power_save - reprogram autosuspend for the given delay
 * @bus: HD-audio bus
 * @delay: autosuspend delay in msec, 0 = off
 *
 * Synchronize the runtime PM autosuspend state from the power_save option.
 */


void snd_hda_set_power_save(struct hda_bus *bus, int delay)
{
	struct hda_codec *c;

	list_for_each_codec(c, bus)
		codec_set_power_save(c, delay);
}
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Total 31 100.00% 2 100.00%


EXPORT_SYMBOL_GPL(snd_hda_set_power_save);

/**
 * snd_hda_check_amp_list_power - Check the amp list and update the power
 * @codec: HD-audio codec
 * @check: the object containing an AMP list and the status
 * @nid: NID to check / update
 *
 * Check whether the given NID is in the amp list.  If it's in the list,
 * check the current AMP status, and update the the power-status according
 * to the mute status.
 *
 * This function is supposed to be set or called from the check_power_status
 * patch ops.
 */


int snd_hda_check_amp_list_power(struct hda_codec *codec,
				 struct hda_loopback_check *check,
				 hda_nid_t nid)
{
	const struct hda_amp_list *p;
	int ch, v;

	if (!check->amplist)
		return 0;
	for (p = check->amplist; p->nid; p++) {
		if (p->nid == nid)
			break;
	}
	if (!p->nid)
		return 0; /* nothing changed */

	for (p = check->amplist; p->nid; p++) {
		for (ch = 0; ch < 2; ch++) {
			v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir,
						   p->idx);
			if (!(v & HDA_AMP_MUTE) && v > 0) {
				if (!check->power_on) {
					check->power_on = 1;
					snd_hda_power_up_pm(codec);
				}
				return 1;
			}
		}
	}
	if (check->power_on) {
		check->power_on = 0;
		snd_hda_power_down_pm(codec);
	}
	return 0;
}
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takashi iwai takashi iwai 154 81.48% 6 85.71%
jaroslav kysela jaroslav kysela 35 18.52% 1 14.29%
Total 189 100.00% 7 100.00%


EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power);
#endif

/*
 * input MUX helper
 */

/**
 * snd_hda_input_mux_info_info - Info callback helper for the input-mux enum
 * @imux: imux helper object
 * @uinfo: pointer to get/store the data
 */


int snd_hda_input_mux_info(const struct hda_input_mux *imux,
			   struct snd_ctl_elem_info *uinfo)
{
	unsigned int index;

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = imux->num_items;
	if (!imux->num_items)
		return 0;
	index = uinfo->value.enumerated.item;
	if (index >= imux->num_items)
		index = imux->num_items - 1;
	strcpy(uinfo->value.enumerated.name, imux->items[index].label);
	return 0;
}
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jaroslav kysela jaroslav kysela 91 88.35% 1 33.33%
takashi iwai takashi iwai 12 11.65% 2 66.67%
Total 103 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_input_mux_info);

/**
 * snd_hda_input_mux_info_put - Put callback helper for the input-mux enum
 * @codec: the HDA codec
 * @imux: imux helper object
 * @ucontrol: pointer to get/store the data
 * @nid: input mux NID
 * @cur_val: pointer to get/store the current imux value
 */


int snd_hda_input_mux_put(struct hda_codec *codec,
			  const struct hda_input_mux *imux,
			  struct snd_ctl_elem_value *ucontrol,
			  hda_nid_t nid,
			  unsigned int *cur_val)
{
	unsigned int idx;

	if (!imux->num_items)
		return 0;
	idx = ucontrol->value.enumerated.item[0];
	if (idx >= imux->num_items)
		idx = imux->num_items - 1;
	if (*cur_val == idx)
		return 0;
	snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
				  imux->items[idx].index);
	*cur_val = idx;
	return 1;
}
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jaroslav kysela jaroslav kysela 97 88.18% 1 25.00%
takashi iwai takashi iwai 13 11.82% 3 75.00%
Total 110 100.00% 4 100.00%


EXPORT_SYMBOL_GPL(snd_hda_input_mux_put);


/**
 * snd_hda_enum_helper_info - Helper for simple enum ctls
 * @kcontrol: ctl element
 * @uinfo: pointer to get/store the data
 * @num_items: number of enum items
 * @texts: enum item string array
 *
 * process kcontrol info callback of a simple string enum array
 * when @num_items is 0 or @texts is NULL, assume a boolean enum array
 */


int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_info *uinfo,
			     int num_items, const char * const *texts)
{
	static const char * const texts_default[] = {
		"Disabled", "Enabled"
	};

	if (!texts || !num_items) {
		num_items = 2;
		texts = texts_default;
	}

	return snd_ctl_enum_info(uinfo, 1, num_items, texts);
}
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takashi iwai takashi iwai 69 100.00% 2 100.00%
Total 69 100.00% 2 100.00%


EXPORT_SYMBOL_GPL(snd_hda_enum_helper_info);

/*
 * Multi-channel / digital-out PCM helper functions
 */

/* setup SPDIF output stream */


static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
				 unsigned int stream_tag, unsigned int format)
{
	struct hda_spdif_out *spdif;
	unsigned int curr_fmt;
	bool reset;

	spdif = snd_hda_spdif_out_of_nid(codec, nid);
	curr_fmt = snd_hda_codec_read(codec, nid, 0,
				      AC_VERB_GET_STREAM_FORMAT, 0);
	reset = codec->spdif_status_reset &&
		(spdif->ctls & AC_DIG1_ENABLE) &&
		curr_fmt != format;

	/* turn off SPDIF if needed; otherwise the IEC958 bits won't be
           updated */
	if (reset)
		set_dig_out_convert(codec, nid,
				    spdif->ctls & ~AC_DIG1_ENABLE & 0xff,
				    -1);
	snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
	if (codec->slave_dig_outs) {
		const hda_nid_t *d;
		for (d = codec->slave_dig_outs; *d; d++)
			snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
						   format);
	}
	/* turn on again (if needed) */
	if (reset)
		set_dig_out_convert(codec, nid,
				    spdif->ctls & 0xff, -1);
}

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takashi iwai takashi iwai 95 54.29% 4 50.00%
laurence darby laurence darby 38 21.71% 1 12.50%
matthew ranostay matthew ranostay 20 11.43% 1 12.50%
stephen warren stephen warren 16 9.14% 1 12.50%
herton ronaldo krzesinski herton ronaldo krzesinski 6 3.43% 1 12.50%
Total 175 100.00% 8 100.00%



static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
{
	snd_hda_codec_cleanup_stream(codec, nid);
	if (codec->slave_dig_outs) {
		const hda_nid_t *d;
		for (d = codec->slave_dig_outs; *d; d++)
			snd_hda_codec_cleanup_stream(codec, *d);
	}
}

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takashi iwai takashi iwai 28 50.00% 3 60.00%
matthew ranostay matthew ranostay 22 39.29% 1 20.00%
herton ronaldo krzesinski herton ronaldo krzesinski 6 10.71% 1 20.00%
Total 56 100.00% 5 100.00%

/**
 * snd_hda_multi_out_dig_open - open the digital out in the exclusive mode
 * @codec: the HDA codec
 * @mout: hda_multi_out object
 */


int snd_hda_multi_out_dig_open(struct hda_codec *codec,
			       struct hda_multi_out *mout)
{
	mutex_lock(&codec->spdif_mutex);
	if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
		/* already opened as analog dup; reset it once */
		cleanup_dig_out_stream(codec, mout->dig_out_nid);
	mout->dig_out_used = HDA_DIG_EXCLUSIVE;
	mutex_unlock(&codec->spdif_mutex);
	return 0;
}
Contributors
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jaroslav kysela jaroslav kysela 49 84.48% 1 25.00%
takashi iwai takashi iwai 7 12.07% 2 50.00%
ingo molnar ingo molnar 2 3.45% 1 25.00%
Total 58 100.00% 4 100.00%


EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_open);

/**
 * snd_hda_multi_out_dig_prepare - prepare the digital out stream
 * @codec: the HDA codec
 * @mout: hda_multi_out object
 * @stream_tag: stream tag to assign
 * @format: format id to assign
 * @substream: PCM substream to assign
 */


int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
				  struct hda_multi_out *mout,
				  unsigned int stream_tag,
				  unsigned int format,
				  struct snd_pcm_substream *substream)
{
	mutex_lock(&codec->spdif_mutex);
	setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
	mutex_unlock(&codec->spdif_mutex);
	return 0;
}
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takashi iwai takashi iwai 60 100.00% 1 100.00%
Total 60 100.00% 1 100.00%


EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_prepare);

/**
 * snd_hda_multi_out_dig_cleanup - clean-up the digital out stream
 * @codec: the HDA codec
 * @mout: hda_multi_out object
 */


int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
				  struct hda_multi_out *mout)
{
	mutex_lock(&codec->spdif_mutex);
	cleanup_dig_out_stream(codec, mout->dig_out_nid);
	mutex_unlock(&codec->spdif_mutex);
	return 0;
}
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takashi iwai takashi iwai 43 100.00% 1 100.00%
Total 43 100.00% 1 100.00%


EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_cleanup);

/**
 * snd_hda_multi_out_dig_close - release the digital out stream
 * @codec: the HDA codec
 * @mout: hda_multi_out object
 */


int snd_hda_multi_out_dig_close(struct hda_codec *codec,
				struct hda_multi_out *mout)
{
	mutex_lock(&codec->spdif_mutex);
	mout->dig_out_used = 0;
	mutex_unlock(&codec->spdif_mutex);
	return 0;
}
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jaroslav kysela jaroslav kysela 38 95.00% 1 50.00%
ingo molnar ingo molnar 2 5.00% 1 50.00%
Total 40 100.00% 2 100.00%


EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_close);

/**
 * snd_hda_multi_out_analog_open - open analog outputs
 * @codec: the HDA codec
 * @mout: hda_multi_out object
 * @substream: PCM substream to assign
 * @hinfo: PCM information to assign
 *
 * Open analog outputs and set up the hw-constraints.
 * If the digital outputs can be opened as slave, open the digital
 * outputs, too.
 */


int snd_hda_multi_out_analog_open(struct hda_codec *codec,
				  struct hda_multi_out *mout,
				  struct snd_pcm_substream *substream,
				  struct hda_pcm_stream *hinfo)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	runtime->hw.channels_max = mout->max_channels;
	if (mout->dig_out_nid) {
		if (!mout->analog_rates) {
			mout->analog_rates = hinfo->rates;
			mout->analog_formats = hinfo->formats;
			mout->analog_maxbps = hinfo->maxbps;
		} else {
			runtime->hw.rates = mout->analog_rates;
			runtime->hw.formats = mout->analog_formats;
			hinfo->maxbps = mout->analog_maxbps;
		}
		if (!mout->spdif_rates) {
			snd_hda_query_supported_pcm(codec, mout->dig_out_nid,
						    &mout->spdif_rates,
						    &mout->spdif_formats,
						    &mout->spdif_maxbps);
		}
		mutex_lock(&codec->spdif_mutex);
		if (mout->share_spdif) {
			if ((runtime->hw.rates & mout->spdif_rates) &&
			    (runtime->hw.formats & mout->spdif_formats)) {
				runtime->hw.rates &= mout->spdif_rates;
				runtime->hw.formats &= mout->spdif_formats;
				if (mout->spdif_maxbps < hinfo->maxbps)
					hinfo->maxbps = mout->spdif_maxbps;
			} else {
				mout->share_spdif = 0;
				/* FIXME: need notify? */
			}
		}
		mutex_unlock(&codec->spdif_mutex);
	}
	return snd_pcm_hw_constraint_step(substream->runtime, 0,
					  SNDRV_PCM_HW_PARAM_CHANNELS, 2);
}
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takashi iwai takashi iwai 218 82.89% 3 60.00%
jaroslav kysela jaroslav kysela 44 16.73% 1 20.00%
frederik deweerdt frederik deweerdt 1 0.38% 1 20.00%
Total 263 100.00% 5 100.00%


EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_open);

/**
 * snd_hda_multi_out_analog_prepare - Preapre the analog outputs.
 * @codec: the HDA codec
 * @mout: hda_multi_out object
 * @stream_tag: stream tag to assign
 * @format: format id to assign
 * @substream: PCM substream to assign
 *
 * Set up the i/o for analog out.
 * When the digital out is available, copy the front out to digital out, too.
 */


int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
				     struct hda_multi_out *mout,
				     unsigned int stream_tag,
				     unsigned int format,
				     struct snd_pcm_substream *substream)
{
	const hda_nid_t *nids = mout->dac_nids;
	int chs = substream->runtime->channels;
	struct hda_spdif_out *spdif;
	int i;

	mutex_lock(&codec->spdif_mutex);
	spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid);
	if (mout->dig_out_nid && mout->share_spdif &&
	    mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
		if (chs == 2 &&
		    snd_hda_is_supported_format(codec, mout->dig_out_nid,
						format) &&
		    !(spdif->status & IEC958_AES0_NONAUDIO)) {
			mout->dig_out_used = HDA_DIG_ANALOG_DUP;
			setup_dig_out_stream(codec, mout->dig_out_nid,
					     stream_tag, format);
		} else {
			mout->dig_out_used = 0;
			cleanup_dig_out_stream(codec, mout->dig_out_nid);
		}
	}
	mutex_unlock(&codec->spdif_mutex);

	/* front */
	snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
				   0, format);
	if (!mout->no_share_stream &&
	    mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
		/* headphone out will just decode front left/right (stereo) */
		snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
					   0, format);
	/* extra outputs copied from front */
	for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
		if (!mout->no_share_stream && mout->hp_out_nid[i])
			snd_hda_codec_setup_stream(codec,
						   mout->hp_out_nid[i],
						   stream_tag, 0, format);

	/* surrounds */
	for (i = 1; i < mout->num_dacs; i++) {
		if (chs >= (i + 1) * 2) /* independent out */
			snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
						   i * 2, format);
		else if (!mout->no_share_stream) /* copy front */
			snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
						   0, format);
	}

	/* extra surrounds */
	for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) {
		int ch = 0;
		if (!mout->extra_out_nid[i])
			break;
		if (chs >= (i + 1) * 2)
			ch = i * 2;
		else if (!mout->no_share_stream)
			break;
		snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i],
					   stream_tag, ch, format);
	}

	return 0;
}
Contributors
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jaroslav kysela jaroslav kysela 212 49.65% 2 12.50%
takashi iwai takashi iwai 138 32.32% 11 68.75%
david henningsson david henningsson 68 15.93% 1 6.25%
stephen warren stephen warren 7 1.64% 1 6.25%
ingo molnar ingo molnar 2 0.47% 1 6.25%
Total 427 100.00% 16 100.00%


EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_prepare);

/**
 * snd_hda_multi_out_analog_cleanup - clean up the setting for analog out
 * @codec: the HDA codec
 * @mout: hda_multi_out object
 */


int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
				     struct hda_multi_out *mout)
{
	const hda_nid_t *nids = mout->dac_nids;
	int i;

	for (i = 0; i < mout->num_dacs; i++)
		snd_hda_codec_cleanup_stream(codec, nids[i]);
	if (mout->hp_nid)
		snd_hda_codec_cleanup_stream(codec, mout->hp_nid);
	for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
		if (mout->hp_out_nid[i])
			snd_hda_codec_cleanup_stream(codec,
						     mout->hp_out_nid[i]);
	for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
		if (mout->extra_out_nid[i])
			snd_hda_codec_cleanup_stream(codec,
						     mout->extra_out_nid[i]);
	mutex_lock(&codec->spdif_mutex);
	if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
		cleanup_dig_out_stream(codec, mout->dig_out_nid);
		mout->dig_out_used = 0;
	}
	mutex_unlock(&codec->spdif_mutex);
	return 0;
}
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jaroslav kysela jaroslav kysela 109 56.48% 1 14.29%
takashi iwai takashi iwai 82 42.49% 5 71.43%
ingo molnar ingo molnar 2 1.04% 1 14.29%
Total 193 100.00% 7 100.00%


EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_cleanup);

/**
 * snd_hda_get_default_vref - Get the default (mic) VREF pin bits
 * @codec: the HDA codec
 * @pin: referred pin NID
 *
 * Guess the suitable VREF pin bits to be set as the pin-control value.
 * Note: the function doesn't set the AC_PINCTL_IN_EN bit.
 */


unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin)
{
	unsigned int pincap;
	unsigned int oldval;
	oldval = snd_hda_codec_read(codec, pin, 0,
				    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
	pincap = snd_hda_query_pin_caps(codec, pin);
	pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
	/* Exception: if the default pin setup is vref50, we give it priority */
	if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50)
		return AC_PINCTL_VREF_80;
	else if (pincap & AC_PINCAP_VREF_50)
		return AC_PINCTL_VREF_50;
	else if (pincap & AC_PINCAP_VREF_100)
		return AC_PINCTL_VREF_100;
	else if (pincap & AC_PINCAP_VREF_GRD)
		return AC_PINCTL_VREF_GRD;
	return AC_PINCTL_VREF_HIZ;
}
Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 105 100.00% 1 100.00%
Total 105 100.00% 1 100.00%


EXPORT_SYMBOL_GPL(snd_hda_get_default_vref);

/**
 * snd_hda_correct_pin_ctl - correct the pin ctl value for matching with the pin cap
 * @codec: the HDA codec
 * @pin: referred pin NID
 * @val: pin ctl value to audit
 */


unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
				     hda_nid_t pin, unsigned int val)
{
	static unsigned int cap_lists[][2] = {
		{ AC_PINCTL_VREF_100, AC_PINCAP_VREF_100 },
		{ AC_PINCTL_VREF_80, AC_PINCAP_VREF_80 },
		{ AC_PINCTL_VREF_50, AC_PINCAP_VREF_50 },
		{ AC_PINCTL_VREF_GRD, AC_PINCAP_VREF_GRD },
        };
	unsigned int cap;

	if (!val)
		return 0;
	cap = snd_hda_query_pin_caps(codec, pin);
	if (!cap)
		return val; /* don't know what to do... */

	if (val & AC_PINCTL_OUT_EN) {
		if (!(cap & AC_PINCAP_OUT))
			val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN);
		else if ((val & AC_PINCTL_HP_EN) && !(cap & AC_PINCAP_HP_DRV))
			val &= ~AC_PINCTL_HP_EN;
	}

	if (val & AC_PINCTL_IN_EN) {
		if (!(cap & AC_PINCAP_IN))
			val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN);
		else {
			unsigned int vcap, vref;
			int i;
			vcap = (cap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
			vref = val & AC_PINCTL_VREFEN;
			for (i = 0; i < ARRAY_SIZE(cap_lists); i++) {
				if (vref == cap_lists[i][0] &&
				    !(vcap & cap_lists[i][1])) {
					if (i == ARRAY_SIZE(cap_lists) - 1)
						vref = AC_PINCTL_VREF_HIZ;
					else
						vref = cap_lists[i + 1][0];
				}
			}
			val &= ~AC_PINCTL_VREFEN;
			val |= vref;
		}
	}

	return val;
}
Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 269 100.00% 3 100.00%
Total 269 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(snd_hda_correct_pin_ctl);

/**
 * _snd_hda_pin_ctl - Helper to set pin ctl value
 * @codec: the HDA codec
 * @pin: referred pin NID
 * @val: pin control value to set
 * @cached: access over codec pinctl cache or direct write
 *
 * This function is a helper to set a pin ctl value more safely.
 * It corrects the pin ctl value via snd_hda_correct_pin_ctl(), stores the
 * value in pin target array via snd_hda_codec_set_pin_target(), then
 * actually writes the value via either snd_hda_codec_update_cache() or
 * snd_hda_codec_write() depending on @cached flag.
 */


int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
			 unsigned int val, bool cached)
{
	val = snd_hda_correct_pin_ctl(codec, pin, val);
	snd_hda_codec_set_pin_target(codec, pin, val);
	if (cached)
		return snd_hda_codec_update_cache(codec, pin, 0,
				AC_VERB_SET_PIN_WIDGET_CONTROL, val);
	else
		return snd_hda_codec_write(codec, pin, 0,
					   AC_VERB_SET_PIN_WIDGET_CONTROL, val);
}
Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 73 100.00% 3 100.00%
Total 73 100.00% 3 100.00%


EXPORT_SYMBOL_GPL(_snd_hda_set_pin_ctl);

/**
 * snd_hda_add_imux_item - Add an item to input_mux
 * @codec: the HDA codec
 * @imux: imux helper object
 * @label: the name of imux item to assign
 * @index: index number of imux item to assign
 * @type_idx: pointer to store the resultant label index
 *
 * When the same label is used already in the existing items, the number
 * suffix is appended to the label.  This label index number is stored
 * to type_idx when non-NULL pointer is given.
 */


int snd_hda_add_imux_item(struct hda_codec *codec,
			  struct hda_input_mux *imux, const char *label,
			  int index, int *type_idx)
{
	int i, label_idx = 0;
	if (imux->num_items >= HDA_MAX_NUM_INPUTS) {
		codec_err(codec, "hda_codec: Too many imux items!\n");
		return -EINVAL;
	}
	for (i = 0; i < imux->num_items; i++) {
		if (!strncmp(label, imux->items[i].label, strlen(label)))
			label_idx++;
	}
	if (type_idx)
		*type_idx = label_idx;
	if (label_idx > 0)
		snprintf(imux->items[imux->num_items].label,
			 sizeof(imux->items[imux->num_items].label),
			 "%s %d", label, label_idx);
	else
		strlcpy(imux->items[imux->num_items].label, label,
			sizeof(imux->items[imux->num_items].label));
	imux->items[imux->num_items].index = index;
	imux->num_items++;
	return 0;
}
Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 198 100.00% 6 100.00%
Total 198 100.00% 6 100.00%


EXPORT_SYMBOL_GPL(snd_hda_add_imux_item);

/**
 * snd_hda_bus_reset_codecs - Reset the bus
 * @bus: HD-audio bus
 */


void snd_hda_bus_reset_codecs(struct hda_bus *bus)
{
	struct hda_codec *codec;

	list_for_each_codec(codec, bus) {
		/* FIXME: maybe a better way needed for forced reset */
		cancel_delayed_work_sync(&codec->jackpoll_work);
#ifdef CONFIG_PM
		if (hda_codec_is_power_on(codec)) {
			hda_call_codec_suspend(codec);
			hda_call_codec_resume(codec);
		}
#endif
	}
}

Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 40 71.43% 10 76.92%
david henningsson david henningsson 8 14.29% 1 7.69%
jaroslav kysela jaroslav kysela 7 12.50% 1 7.69%
mengdong lin mengdong lin 1 1.79% 1 7.69%
Total 56 100.00% 13 100.00%

/**
 * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer
 * @pcm: PCM caps bits
 * @buf: the string buffer to write
 * @buflen: the max buffer length
 *
 * used by hda_proc.c and hda_eld.c
 */


void snd_print_pcm_bits(int pcm, char *buf, int buflen)
{
	static unsigned int bits[] = { 8, 16, 20, 24, 32 };
	int i, j;

	for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++)
		if (pcm & (AC_SUPPCM_BITS_8 << i))
			j += snprintf(buf + j, buflen - j,  " %d", bits[i]);

	buf[j] = '\0'; /* necessary when j == 0 */
}
Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 96 100.00% 2 100.00%
Total 96 100.00% 2 100.00%


EXPORT_SYMBOL_GPL(snd_print_pcm_bits);

MODULE_DESCRIPTION("HDA codec core");
MODULE_LICENSE("GPL");
Overall Contributors
Person Tokens Prop Commits CommitProp
takashi iwai takashi iwai 12316 70.19% 221 79.50%
jaroslav kysela jaroslav kysela 3877 22.10% 15 5.40%
stephen warren stephen warren 407 2.32% 3 1.08%
mengdong lin mengdong lin 355 2.02% 8 2.88%
david henningsson david henningsson 221 1.26% 6 2.16%
fengguang wu fengguang wu 82 0.47% 4 1.44%
wang xingchao wang xingchao 57 0.32% 3 1.08%
matthew ranostay matthew ranostay 46 0.26% 1 0.36%
laurence darby laurence darby 38 0.22% 1 0.36%
serge suchkov serge suchkov 28 0.16% 1 0.36%
ingo molnar ingo molnar 23 0.13% 1 0.36%
wu fengguang wu fengguang 20 0.11% 1 0.36%
clemens ladisch clemens ladisch 15 0.09% 1 0.36%
han lu han lu 14 0.08% 1 0.36%
nicolas graziano nicolas graziano 12 0.07% 1 0.36%
herton ronaldo krzesinski herton ronaldo krzesinski 12 0.07% 1 0.36%
mike waychison mike waychison 8 0.05% 1 0.36%
paul gortmaker paul gortmaker 3 0.02% 1 0.36%
andrew paprocki andrew paprocki 3 0.02% 1 0.36%
markus osterhoff markus osterhoff 3 0.02% 1 0.36%
sudip mukherjee sudip mukherjee 2 0.01% 1 0.36%
sasha khapyorsky sasha khapyorsky 1 0.01% 1 0.36%
dave airlie dave airlie 1 0.01% 1 0.36%
frederik deweerdt frederik deweerdt 1 0.01% 1 0.36%
heloise nh heloise nh 1 0.01% 1 0.36%
Total 17546 100.00% 278 100.00%
  Directory: sound/pci/hda

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
	Person	Tokens	Prop	Commits	CommitProp
takashi iwai	takashi iwai	156	81.25%	17	80.95%
jaroslav kysela	jaroslav kysela	25	13.02%	1	4.76%
fengguang wu	fengguang wu	10	5.21%	2	9.52%
ingo molnar	ingo molnar	1	0.52%	1	4.76%
	Total	192	100.00%	21	100.00%
cregit-Linux how code gets into the kernel

Release 4.7 sound/pci/hda/hda_codec.c

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