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05acb863a2
android_kernel_xiaomi_sm7250/sound/pci/hda/hda_codec.c
Takashi Iwai 4b3acaf5b5 [ALSA] hda-codec - Feed front signals to all surrounds 
HDA Codec driver
Feed front signals to all surround channels if no data is given
for surround channels.

It seems that CLFE works as expected (only center outputs) even if
connected from the front line - at least on my test system.
If this change causes problems on other system (e.g. only the left
channel is transferred to the center channel), please let me know...

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-06-22 12:28:40 +02:00

1853 lines
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/*
* 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 <sound/driver.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include "hda_codec.h"
#include <sound/asoundef.h>
#include <sound/initval.h>
#include "hda_local.h"
MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
MODULE_DESCRIPTION("Universal interface for High Definition Audio Codec");
MODULE_LICENSE("GPL");
/*
* vendor / preset table
*/
struct hda_vendor_id {
unsigned int id;
const char *name;
};
/* codec vendor labels */
static struct hda_vendor_id hda_vendor_ids[] = {
{ 0x10ec, "Realtek" },
{ 0x11d4, "Analog Devices" },
{ 0x13f6, "C-Media" },
{ 0x434d, "C-Media" },
{ 0x8384, "SigmaTel" },
{} /* terminator */
};
/* codec presets */
#include "hda_patch.h"
/**
* snd_hda_codec_read - send a command and get the response
* @codec: the HDA codec
* @nid: NID to send the command
* @direct: direct flag
* @verb: the verb to send
* @parm: the parameter for the verb
*
* Send a single command and read the corresponding response.
*
* Returns the obtained response value, or -1 for an error.
*/
unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid, int direct,
unsigned int verb, unsigned int parm)
{
unsigned int res;
down(&codec->bus->cmd_mutex);
if (! codec->bus->ops.command(codec, nid, direct, verb, parm))
res = codec->bus->ops.get_response(codec);
else
res = (unsigned int)-1;
up(&codec->bus->cmd_mutex);
return res;
}
/**
* snd_hda_codec_write - send a single command without waiting for response
* @codec: the HDA codec
* @nid: NID to send the command
* @direct: direct flag
* @verb: the verb to send
* @parm: the parameter for the verb
*
* Send a single command without waiting for response.
*
* Returns 0 if successful, or a negative error code.
*/
int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int direct,
unsigned int verb, unsigned int parm)
{
int err;
down(&codec->bus->cmd_mutex);
err = codec->bus->ops.command(codec, nid, direct, verb, parm);
up(&codec->bus->cmd_mutex);
return err;
}
/**
* 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);
}
/**
* snd_hda_get_sub_nodes - get the range of sub nodes
* @codec: the HDA codec
* @nid: NID to parse
* @start_id: the pointer to store the start NID
*
* Parse the NID and store the start NID of its sub-nodes.
* Returns the number of sub-nodes.
*/
int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid, hda_nid_t *start_id)
{
unsigned int parm;
parm = snd_hda_param_read(codec, nid, AC_PAR_NODE_COUNT);
*start_id = (parm >> 16) & 0x7fff;
return (int)(parm & 0x7fff);
}
/**
* snd_hda_get_connections - get connection list
* @codec: the HDA codec
* @nid: NID to parse
* @conn_list: connection list array
* @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)
{
unsigned int parm;
int i, j, conn_len, num_tupples, conns;
unsigned int shift, num_elems, mask;
snd_assert(conn_list && max_conns > 0, return -EINVAL);
parm = snd_hda_param_read(codec, nid, AC_PAR_CONNLIST_LEN);
if (parm & AC_CLIST_LONG) {
/* long form */
shift = 16;
num_elems = 2;
} else {
/* short form */
shift = 8;
num_elems = 4;
}
conn_len = parm & AC_CLIST_LENGTH;
num_tupples = num_elems / 2;
mask = (1 << (shift-1)) - 1;
if (! conn_len)
return 0; /* no connection */
if (conn_len == 1) {
/* single connection */
parm = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONNECT_LIST, 0);
conn_list[0] = parm & mask;
return 1;
}
/* multi connection */
conns = 0;
for (i = 0; i < conn_len; i += num_elems) {
parm = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONNECT_LIST, i);
for (j = 0; j < num_tupples; j++) {
int range_val;
hda_nid_t val1, val2, n;
range_val = parm & (1 << (shift-1)); /* ranges */
val1 = parm & mask;
parm >>= shift;
val2 = parm & mask;
parm >>= shift;
if (range_val) {
/* ranges between val1 and val2 */
if (val1 > val2) {
snd_printk(KERN_WARNING "hda_codec: invalid dep_range_val %x:%x\n", val1, val2);
continue;
}
for (n = val1; n <= val2; n++) {
if (conns >= max_conns)
return -EINVAL;
conn_list[conns++] = n;
}
} else {
if (! val1)
break;
if (conns >= max_conns)
return -EINVAL;
conn_list[conns++] = val1;
if (! val2)
break;
if (conns >= max_conns)
return -EINVAL;
conn_list[conns++] = val2;
}
}
}
return conns;
}
/**
* snd_hda_queue_unsol_event - add an unsolicited event to queue
* @bus: the BUS
* @res: unsolicited event (lower 32bit of RIRB entry)
* @res_ex: codec addr and flags (upper 32bit or RIRB entry)
*
* Adds the given event to the queue. The events are processed in
* the workqueue asynchronously. Call this function in the interrupt
* hanlder when RIRB receives an unsolicited event.
*
* Returns 0 if successful, or a negative error code.
*/
int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
{
struct hda_bus_unsolicited *unsol;
unsigned int wp;
if ((unsol = bus->unsol) == NULL)
return 0;
wp = (unsol->wp + 1) % HDA_UNSOL_QUEUE_SIZE;
unsol->wp = wp;
wp <<= 1;
unsol->queue[wp] = res;
unsol->queue[wp + 1] = res_ex;
queue_work(unsol->workq, &unsol->work);
return 0;
}
/*
* process queueud unsolicited events
*/
static void process_unsol_events(void *data)
{
struct hda_bus *bus = data;
struct hda_bus_unsolicited *unsol = bus->unsol;
struct hda_codec *codec;
unsigned int rp, caddr, res;
while (unsol->rp != unsol->wp) {
rp = (unsol->rp + 1) % HDA_UNSOL_QUEUE_SIZE;
unsol->rp = rp;
rp <<= 1;
res = unsol->queue[rp];
caddr = unsol->queue[rp + 1];
if (! (caddr & (1 << 4))) /* no unsolicited event? */
continue;
codec = bus->caddr_tbl[caddr & 0x0f];
if (codec && codec->patch_ops.unsol_event)
codec->patch_ops.unsol_event(codec, res);
}
}
/*
* initialize unsolicited queue
*/
static int init_unsol_queue(struct hda_bus *bus)
{
struct hda_bus_unsolicited *unsol;
unsol = kcalloc(1, sizeof(*unsol), GFP_KERNEL);
if (! unsol) {
snd_printk(KERN_ERR "hda_codec: can't allocate unsolicited queue\n");
return -ENOMEM;
}
unsol->workq = create_workqueue("hda_codec");
if (! unsol->workq) {
snd_printk(KERN_ERR "hda_codec: can't create workqueue\n");
kfree(unsol);
return -ENOMEM;
}
INIT_WORK(&unsol->work, process_unsol_events, bus);
bus->unsol = unsol;
return 0;
}
/*
* destructor
*/
static void snd_hda_codec_free(struct hda_codec *codec);
static int snd_hda_bus_free(struct hda_bus *bus)
{
struct list_head *p, *n;
if (! bus)
return 0;
if (bus->unsol) {
destroy_workqueue(bus->unsol->workq);
kfree(bus->unsol);
}
list_for_each_safe(p, n, &bus->codec_list) {
struct hda_codec *codec = list_entry(p, struct hda_codec, list);
snd_hda_codec_free(codec);
}
if (bus->ops.private_free)
bus->ops.private_free(bus);
kfree(bus);
return 0;
}
static int snd_hda_bus_dev_free(snd_device_t *device)
{
struct hda_bus *bus = device->device_data;
return snd_hda_bus_free(bus);
}
/**
* snd_hda_bus_new - create a HDA bus
* @card: the card entry
* @temp: the template for hda_bus information
* @busp: the pointer to store the created bus instance
*
* Returns 0 if successful, or a negative error code.
*/
int snd_hda_bus_new(snd_card_t *card, const struct hda_bus_template *temp,
struct hda_bus **busp)
{
struct hda_bus *bus;
int err;
static snd_device_ops_t dev_ops = {
.dev_free = snd_hda_bus_dev_free,
};
snd_assert(temp, return -EINVAL);
snd_assert(temp->ops.command && temp->ops.get_response, return -EINVAL);
if (busp)
*busp = NULL;
bus = kcalloc(1, sizeof(*bus), GFP_KERNEL);
if (bus == NULL) {
snd_printk(KERN_ERR "can't allocate struct hda_bus\n");
return -ENOMEM;
}
bus->card = card;
bus->private_data = temp->private_data;
bus->pci = temp->pci;
bus->modelname = temp->modelname;
bus->ops = temp->ops;
init_MUTEX(&bus->cmd_mutex);
INIT_LIST_HEAD(&bus->codec_list);
init_unsol_queue(bus);
if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
snd_hda_bus_free(bus);
return err;
}
if (busp)
*busp = bus;
return 0;
}
/*
* find a matching codec preset
*/
static const struct hda_codec_preset *find_codec_preset(struct hda_codec *codec)
{
const struct hda_codec_preset **tbl, *preset;
for (tbl = hda_preset_tables; *tbl; tbl++) {
for (preset = *tbl; preset->id; preset++) {
u32 mask = preset->mask;
if (! mask)
mask = ~0;
if (preset->id == (codec->vendor_id & mask))
return preset;
}
}
return NULL;
}
/*
* snd_hda_get_codec_name - store the codec name
*/
void snd_hda_get_codec_name(struct hda_codec *codec,
char *name, int namelen)
{
const struct hda_vendor_id *c;
const char *vendor = NULL;
u16 vendor_id = codec->vendor_id >> 16;
char tmp[16];
for (c = hda_vendor_ids; c->id; c++) {
if (c->id == vendor_id) {
vendor = c->name;
break;
}
}
if (! vendor) {
sprintf(tmp, "Generic %04x", vendor_id);
vendor = tmp;
}
if (codec->preset && codec->preset->name)
snprintf(name, namelen, "%s %s", vendor, codec->preset->name);
else
snprintf(name, namelen, "%s ID %x", vendor, codec->vendor_id & 0xffff);
}
/*
* look for an AFG node
*
* return 0 if not found
*/
static int look_for_afg_node(struct hda_codec *codec)
{
int i, total_nodes;
hda_nid_t nid;
total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
for (i = 0; i < total_nodes; i++, nid++) {
if ((snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE) & 0xff) ==
AC_GRP_AUDIO_FUNCTION)
return nid;
}
return 0;
}
/*
* codec destructor
*/
static void snd_hda_codec_free(struct hda_codec *codec)
{
if (! codec)
return;
list_del(&codec->list);
codec->bus->caddr_tbl[codec->addr] = NULL;
if (codec->patch_ops.free)
codec->patch_ops.free(codec);
kfree(codec);
}
static void init_amp_hash(struct hda_codec *codec);
/**
* 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, unsigned int codec_addr,
struct hda_codec **codecp)
{
struct hda_codec *codec;
char component[13];
int err;
snd_assert(bus, return -EINVAL);
snd_assert(codec_addr <= HDA_MAX_CODEC_ADDRESS, return -EINVAL);
if (bus->caddr_tbl[codec_addr]) {
snd_printk(KERN_ERR "hda_codec: address 0x%x is already occupied\n", codec_addr);
return -EBUSY;
}
codec = kcalloc(1, sizeof(*codec), GFP_KERNEL);
if (codec == NULL) {
snd_printk(KERN_ERR "can't allocate struct hda_codec\n");
return -ENOMEM;
}
codec->bus = bus;
codec->addr = codec_addr;
init_MUTEX(&codec->spdif_mutex);
init_amp_hash(codec);
list_add_tail(&codec->list, &bus->codec_list);
bus->caddr_tbl[codec_addr] = codec;
codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_VENDOR_ID);
codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_SUBSYSTEM_ID);
codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_REV_ID);
/* FIXME: support for multiple AFGs? */
codec->afg = look_for_afg_node(codec);
if (! codec->afg) {
snd_printdd("hda_codec: no AFG node found\n");
snd_hda_codec_free(codec);
return -ENODEV;
}
codec->preset = find_codec_preset(codec);
if (! *bus->card->mixername)
snd_hda_get_codec_name(codec, bus->card->mixername,
sizeof(bus->card->mixername));
if (codec->preset && codec->preset->patch)
err = codec->preset->patch(codec);
else
err = snd_hda_parse_generic_codec(codec);
if (err < 0) {
snd_hda_codec_free(codec);
return err;
}
snd_hda_codec_proc_new(codec);
sprintf(component, "HDA:%08x", codec->vendor_id);
snd_component_add(codec->bus->card, component);
if (codecp)
*codecp = codec;
return 0;
}
/**
* 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)
{
if (! nid)
return;
snd_printdd("hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
nid, stream_tag, channel_id, format);
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
(stream_tag << 4) | channel_id);
msleep(1);
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
}
/*
* amp access functions
*/
/* FIXME: more better hash key? */
#define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
#define INFO_AMP_CAPS (1<<0)
#define INFO_AMP_VOL(ch) (1 << (1 + (ch)))
/* initialize the hash table */
static void init_amp_hash(struct hda_codec *codec)
{
memset(codec->amp_hash, 0xff, sizeof(codec->amp_hash));
codec->num_amp_entries = 0;
}
/* query the hash. allocate an entry if not found. */
static struct hda_amp_info *get_alloc_amp_hash(struct hda_codec *codec, u32 key)
{
u16 idx = key % (u16)ARRAY_SIZE(codec->amp_hash);
u16 cur = codec->amp_hash[idx];
struct hda_amp_info *info;
while (cur != 0xffff) {
info = &codec->amp_info[cur];
if (info->key == key)
return info;
cur = info->next;
}
/* add a new hash entry */
if (codec->num_amp_entries >= ARRAY_SIZE(codec->amp_info)) {
snd_printk(KERN_ERR "hda_codec: Tooooo many amps!\n");
return NULL;
}
cur = codec->num_amp_entries++;
info = &codec->amp_info[cur];
info->key = key;
info->status = 0; /* not initialized yet */
info->next = codec->amp_hash[idx];
codec->amp_hash[idx] = cur;
return info;
}
/*
* query AMP capabilities for the given widget and direction
*/
static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
{
struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
if (! info)
return 0;
if (! (info->status & INFO_AMP_CAPS)) {
if (!(snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP) & AC_WCAP_AMP_OVRD))
nid = codec->afg;
info->amp_caps = snd_hda_param_read(codec, nid, direction == HDA_OUTPUT ?
AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
info->status |= INFO_AMP_CAPS;
}
return info->amp_caps;
}
/*
* read the current volume to info
* if the cache exists, read the cache value.
*/
static unsigned int get_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
hda_nid_t nid, int ch, int direction, int index)
{
u32 val, parm;
if (info->status & INFO_AMP_VOL(ch))
return info->vol[ch];
parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
parm |= index;
val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_AMP_GAIN_MUTE, parm);
info->vol[ch] = val & 0xff;
info->status |= INFO_AMP_VOL(ch);
return info->vol[ch];
}
/*
* write the current volume in info to the h/w and update the cache
*/
static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
hda_nid_t nid, int ch, int direction, int index, int val)
{
u32 parm;
parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
parm |= index << AC_AMP_SET_INDEX_SHIFT;
parm |= val;
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
info->vol[ch] = val;
}
/*
* read AMP value. The volume is between 0 to 0x7f, 0x80 = mute bit.
*/
static int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch, int direction, int index)
{
struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
if (! info)
return 0;
return get_vol_mute(codec, info, nid, ch, direction, index);
}
/*
* update the AMP value, mask = bit mask to set, val = the value
*/
static int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch, int direction, int idx, int mask, int val)
{
struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
if (! info)
return 0;
val &= mask;
val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
if (info->vol[ch] == val && ! codec->in_resume)
return 0;
put_vol_mute(codec, info, nid, ch, direction, idx, val);
return 1;
}
/*
* AMP control callbacks
*/
/* retrieve parameters from private_value */
#define get_amp_nid(kc) ((kc)->private_value & 0xffff)
#define get_amp_channels(kc) (((kc)->private_value >> 16) & 0x3)
#define get_amp_direction(kc) (((kc)->private_value >> 18) & 0x1)
#define get_amp_index(kc) (((kc)->private_value >> 19) & 0xf)
/* volume */
int snd_hda_mixer_amp_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *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);
u32 caps;
caps = query_amp_caps(codec, nid, dir);
caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; /* num steps */
if (! caps) {
printk(KERN_WARNING "hda_codec: num_steps = 0 for NID=0x%x\n", nid);
return -EINVAL;
}
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = chs == 3 ? 2 : 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = caps;
return 0;
}
int snd_hda_mixer_amp_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *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) & 0x7f;
if (chs & 2)
*valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x7f;
return 0;
}
int snd_hda_mixer_amp_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *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,
0x7f, *valp);
if (chs & 2)
change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
0x7f, valp[1]);
return change;
}
/* switch */
int snd_hda_mixer_amp_switch_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *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;
}
int snd_hda_mixer_amp_switch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *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) & 0x80) ? 0 : 1;
if (chs & 2)
*valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x80) ? 0 : 1;
return 0;
}
int snd_hda_mixer_amp_switch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *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,
0x80, *valp ? 0 : 0x80);
if (chs & 2)
change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
0x80, valp[1] ? 0 : 0x80);
return change;
}
/*
* SPDIF out controls
*/
static int snd_hda_spdif_mask_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
uinfo->count = 1;
return 0;
}
static int snd_hda_spdif_cmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *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;
}
static int snd_hda_spdif_pmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
IEC958_AES0_NONAUDIO |
IEC958_AES0_PRO_EMPHASIS_5015;
return 0;
}
static int snd_hda_spdif_default_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
return 0;
}
/* 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 |= 1 << 6;
if (sbits & IEC958_AES0_NONAUDIO)
val |= 1 << 5;
if (sbits & IEC958_AES0_PROFESSIONAL) {
if ((sbits & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
val |= 1 << 3;
} else {
if ((sbits & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
val |= 1 << 3;
if (! (sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
val |= 1 << 4;
if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
val |= 1 << 7;
val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
}
return val;
}
/* 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 & (1 << 5))
sbits |= IEC958_AES0_NONAUDIO;
if (val & (1 << 6))
sbits |= IEC958_AES0_PROFESSIONAL;
if (sbits & IEC958_AES0_PROFESSIONAL) {
if (sbits & (1 << 3))
sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
} else {
if (val & (1 << 3))
sbits |= IEC958_AES0_CON_EMPHASIS_5015;
if (! (val & (1 << 4)))
sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
if (val & (1 << 7))
sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
sbits |= val & (0x7f << 8);
}
return sbits;
}
static int snd_hda_spdif_default_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
hda_nid_t nid = kcontrol->private_value;
unsigned short val;
int change;
down(&codec->spdif_mutex);
codec->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(codec->spdif_status);
val |= codec->spdif_ctls & 1;
change = codec->spdif_ctls != val;
codec->spdif_ctls = val;
if (change || codec->in_resume) {
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_2, val >> 8);
}
up(&codec->spdif_mutex);
return change;
}
static int snd_hda_spdif_out_switch_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 1;
return 0;
}
static int snd_hda_spdif_out_switch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = codec->spdif_ctls & 1;
return 0;
}
static int snd_hda_spdif_out_switch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
hda_nid_t nid = kcontrol->private_value;
unsigned short val;
int change;
down(&codec->spdif_mutex);
val = codec->spdif_ctls & ~1;
if (ucontrol->value.integer.value[0])
val |= 1;
change = codec->spdif_ctls != val;
if (change || codec->in_resume) {
codec->spdif_ctls = val;
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
AC_AMP_SET_RIGHT | AC_AMP_SET_LEFT |
AC_AMP_SET_OUTPUT | ((val & 1) ? 0 : 0x80));
}
up(&codec->spdif_mutex);
return change;
}
static snd_kcontrol_new_t 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_spdif_out_ctls - create Output SPDIF-related controls
* @codec: the HDA codec
* @nid: audio out widget NID
*
* Creates controls related with the SPDIF output.
* Called from each patch supporting the SPDIF out.
*
* Returns 0 if successful, or a negative error code.
*/
int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
{
int err;
snd_kcontrol_t *kctl;
snd_kcontrol_new_t *dig_mix;
for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
kctl = snd_ctl_new1(dig_mix, codec);
kctl->private_value = nid;
if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
return err;
}
codec->spdif_ctls = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
return 0;
}
/*
* SPDIF input
*/
#define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info
static int snd_hda_spdif_in_switch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = codec->spdif_in_enable;
return 0;
}
static int snd_hda_spdif_in_switch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *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;
down(&codec->spdif_mutex);
change = codec->spdif_in_enable != val;
if (change || codec->in_resume) {
codec->spdif_in_enable = val;
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val);
}
up(&codec->spdif_mutex);
return change;
}
static int snd_hda_spdif_in_status_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
hda_nid_t nid = kcontrol->private_value;
unsigned short val;
unsigned int sbits;
val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
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;
}
static snd_kcontrol_new_t 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;
snd_kcontrol_t *kctl;
snd_kcontrol_new_t *dig_mix;
for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
kctl = snd_ctl_new1(dig_mix, codec);
kctl->private_value = nid;
if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
return err;
}
codec->spdif_in_enable = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0) & 1;
return 0;
}
/**
* snd_hda_build_controls - build mixer controls
* @bus: the BUS
*
* Creates mixer controls for each codec included in the bus.
*
* Returns 0 if successful, otherwise a negative error code.
*/
int snd_hda_build_controls(struct hda_bus *bus)
{
struct list_head *p;
/* build controls */
list_for_each(p, &bus->codec_list) {
struct hda_codec *codec = list_entry(p, struct hda_codec, list);
int err;
if (! codec->patch_ops.build_controls)
continue;
err = codec->patch_ops.build_controls(codec);
if (err < 0)
return err;
}
/* initialize */
list_for_each(p, &bus->codec_list) {
struct hda_codec *codec = list_entry(p, struct hda_codec, list);
int err;
if (! codec->patch_ops.init)
continue;
err = codec->patch_ops.init(codec);
if (err < 0)
return err;
}
return 0;
}
/*
* stream formats
*/
static unsigned int rate_bits[][3] = {
/* rate in Hz, ALSA rate bitmask, HDA format value */
{ 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
{ 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
{ 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
{ 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
{ 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
{ 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
{ 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
{ 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
{ 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
{ 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
{ 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
{ 0 }
};
/**
* snd_hda_calc_stream_format - calculate format bitset
* @rate: the sample rate
* @channels: the number of channels
* @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
* @maxbps: the max. bps
*
* Calculate the format bitset from the given rate, channels and th PCM format.
*
* Return zero if invalid.
*/
unsigned int snd_hda_calc_stream_format(unsigned int rate,
unsigned int channels,
unsigned int format,
unsigned int maxbps)
{
int i;
unsigned int val = 0;
for (i = 0; rate_bits[i][0]; i++)
if (rate_bits[i][0] == rate) {
val = rate_bits[i][2];
break;
}
if (! rate_bits[i][0]) {
snd_printdd("invalid rate %d\n", rate);
return 0;
}
if (channels == 0 || channels > 8) {
snd_printdd("invalid channels %d\n", channels);
return 0;
}
val |= channels - 1;
switch (snd_pcm_format_width(format)) {
case 8: val |= 0x00; break;
case 16: val |= 0x10; break;
case 20:
case 24:
case 32:
if (maxbps >= 32)
val |= 0x40;
else if (maxbps >= 24)
val |= 0x30;
else
val |= 0x20;
break;
default:
snd_printdd("invalid format width %d\n", snd_pcm_format_width(format));
return 0;
}
return val;
}
/**
* snd_hda_query_supported_pcm - query the supported PCM rates and formats
* @codec: the HDA codec
* @nid: NID to query
* @ratesp: the pointer to store the detected rate bitflags
* @formatsp: the pointer to store the detected formats
* @bpsp: the pointer to store the detected format widths
*
* Queries the supported PCM rates and formats. The NULL @ratesp, @formatsp
* or @bsps argument is ignored.
*
* Returns 0 if successful, otherwise a negative error code.
*/
int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
{
int i;
unsigned int val, streams;
val = 0;
if (nid != codec->afg &&
snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP) & AC_WCAP_FORMAT_OVRD) {
val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
if (val == -1)
return -EIO;
}
if (! val)
val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
if (ratesp) {
u32 rates = 0;
for (i = 0; rate_bits[i][0]; i++) {
if (val & (1 << i))
rates |= rate_bits[i][1];
}
*ratesp = rates;
}
if (formatsp || bpsp) {
u64 formats = 0;
unsigned int bps;
unsigned int wcaps;
wcaps = snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP);
streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
if (streams == -1)
return -EIO;
if (! streams) {
streams = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
if (streams == -1)
return -EIO;
}
bps = 0;
if (streams & AC_SUPFMT_PCM) {
if (val & AC_SUPPCM_BITS_8) {
formats |= SNDRV_PCM_FMTBIT_U8;
bps = 8;
}
if (val & AC_SUPPCM_BITS_16) {
formats |= SNDRV_PCM_FMTBIT_S16_LE;
bps = 16;
}
if (wcaps & AC_WCAP_DIGITAL) {
if (val & AC_SUPPCM_BITS_32)
formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
formats |= SNDRV_PCM_FMTBIT_S32_LE;
if (val & AC_SUPPCM_BITS_24)
bps = 24;
else if (val & AC_SUPPCM_BITS_20)
bps = 20;
} else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|AC_SUPPCM_BITS_32)) {
formats |= SNDRV_PCM_FMTBIT_S32_LE;
if (val & AC_SUPPCM_BITS_32)
bps = 32;
else if (val & AC_SUPPCM_BITS_20)
bps = 20;
else if (val & AC_SUPPCM_BITS_24)
bps = 24;
}
}
else if (streams == AC_SUPFMT_FLOAT32) { /* should be exclusive */
formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
bps = 32;
} else if (streams == AC_SUPFMT_AC3) { /* should be exclusive */
/* temporary hack: we have still no proper support
* for the direct AC3 stream...
*/
formats |= SNDRV_PCM_FMTBIT_U8;
bps = 8;
}
if (formatsp)
*formatsp = formats;
if (bpsp)
*bpsp = bps;
}
return 0;
}
/**
* snd_hda_is_supported_format - check whether the given node supports the format val
*
* Returns 1 if supported, 0 if not.
*/
int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
unsigned int format)
{
int i;
unsigned int val = 0, rate, stream;
if (nid != codec->afg &&
snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP) & AC_WCAP_FORMAT_OVRD) {
val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
if (val == -1)
return 0;
}
if (! val) {
val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
if (val == -1)
return 0;
}
rate = format & 0xff00;
for (i = 0; rate_bits[i][0]; i++)
if (rate_bits[i][2] == rate) {
if (val & (1 << i))
break;
return 0;
}
if (! rate_bits[i][0])
return 0;
stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
if (stream == -1)
return 0;
if (! stream && nid != codec->afg)
stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
if (! stream || stream == -1)
return 0;
if (stream & AC_SUPFMT_PCM) {
switch (format & 0xf0) {
case 0x00:
if (! (val & AC_SUPPCM_BITS_8))
return 0;
break;
case 0x10:
if (! (val & AC_SUPPCM_BITS_16))
return 0;
break;
case 0x20:
if (! (val & AC_SUPPCM_BITS_20))
return 0;
break;
case 0x30:
if (! (val & AC_SUPPCM_BITS_24))
return 0;
break;
case 0x40:
if (! (val & AC_SUPPCM_BITS_32))
return 0;
break;
default:
return 0;
}
} else {
/* FIXME: check for float32 and AC3? */
}
return 1;
}
/*
* PCM stuff
*/
static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
struct hda_codec *codec,
snd_pcm_substream_t *substream)
{
return 0;
}
static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
struct hda_codec *codec,
unsigned int stream_tag,
unsigned int format,
snd_pcm_substream_t *substream)
{
snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
return 0;
}
static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
struct hda_codec *codec,
snd_pcm_substream_t *substream)
{
snd_hda_codec_setup_stream(codec, hinfo->nid, 0, 0, 0);
return 0;
}
static int set_pcm_default_values(struct hda_codec *codec, struct hda_pcm_stream *info)
{
if (info->nid) {
/* query support PCM information from the given NID */
if (! info->rates || ! info->formats)
snd_hda_query_supported_pcm(codec, info->nid,
info->rates ? NULL : &info->rates,
info->formats ? NULL : &info->formats,
info->maxbps ? NULL : &info->maxbps);
}
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) {
snd_assert(info->nid, return -EINVAL);
info->ops.prepare = hda_pcm_default_prepare;
}
if (info->ops.cleanup == NULL) {
snd_assert(info->nid, return -EINVAL);
info->ops.cleanup = hda_pcm_default_cleanup;
}
return 0;
}
/**
* snd_hda_build_pcms - build PCM information
* @bus: the BUS
*
* Create PCM information for each codec included in the bus.
*
* The build_pcms codec patch is requested to set up codec->num_pcms and
* codec->pcm_info properly. The array is referred by the top-level driver
* to create its PCM instances.
* The allocated codec->pcm_info should be released in codec->patch_ops.free
* callback.
*
* At least, substreams, channels_min and channels_max must be filled for
* each stream. substreams = 0 indicates that the stream doesn't exist.
* When rates and/or formats are zero, the supported values are queried
* from the given nid. The nid is used also by the default ops.prepare
* and ops.cleanup callbacks.
*
* The driver needs to call ops.open in its open callback. Similarly,
* ops.close is supposed to be called in the close callback.
* ops.prepare should be called in the prepare or hw_params callback
* with the proper parameters for set up.
* ops.cleanup should be called in hw_free for clean up of streams.
*
* This function returns 0 if successfull, or a negative error code.
*/
int snd_hda_build_pcms(struct hda_bus *bus)
{
struct list_head *p;
list_for_each(p, &bus->codec_list) {
struct hda_codec *codec = list_entry(p, struct hda_codec, list);
unsigned int pcm, s;
int err;
if (! codec->patch_ops.build_pcms)
continue;
err = codec->patch_ops.build_pcms(codec);
if (err < 0)
return err;
for (pcm = 0; pcm < codec->num_pcms; pcm++) {
for (s = 0; s < 2; s++) {
struct hda_pcm_stream *info;
info = &codec->pcm_info[pcm].stream[s];
if (! info->substreams)
continue;
err = set_pcm_default_values(codec, info);
if (err < 0)
return err;
}
}
}
return 0;
}
/**
* snd_hda_check_board_config - compare the current codec with the config table
* @codec: the HDA codec
* @tbl: configuration table, terminated by null entries
*
* Compares the modelname or PCI subsystem id of the current codec with the
* given configuration table. If a matching entry is found, returns its
* config value (supposed to be 0 or positive).
*
* If no entries are matching, the function returns a negative value.
*/
int snd_hda_check_board_config(struct hda_codec *codec, struct hda_board_config *tbl)
{
struct hda_board_config *c;
if (codec->bus->modelname) {
for (c = tbl; c->modelname || c->pci_subvendor; c++) {
if (c->modelname &&
! strcmp(codec->bus->modelname, c->modelname)) {
snd_printd(KERN_INFO "hda_codec: model '%s' is selected\n", c->modelname);
return c->config;
}
}
}
if (codec->bus->pci) {
u16 subsystem_vendor, subsystem_device;
pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor);
pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_ID, &subsystem_device);
for (c = tbl; c->modelname || c->pci_subvendor; c++) {
if (c->pci_subvendor == subsystem_vendor &&
c->pci_subdevice == subsystem_device)
return c->config;
}
}
return -1;
}
/**
* snd_hda_add_new_ctls - create controls from the array
* @codec: the HDA codec
* @knew: the array of snd_kcontrol_new_t
*
* 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, snd_kcontrol_new_t *knew)
{
int err;
for (; knew->name; knew++) {
err = snd_ctl_add(codec->bus->card, snd_ctl_new1(knew, codec));
if (err < 0)
return err;
}
return 0;
}
/*
* input MUX helper
*/
int snd_hda_input_mux_info(const struct hda_input_mux *imux, snd_ctl_elem_info_t *uinfo)
{
unsigned int index;
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = imux->num_items;
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;
}
int snd_hda_input_mux_put(struct hda_codec *codec, const struct hda_input_mux *imux,
snd_ctl_elem_value_t *ucontrol, hda_nid_t nid,
unsigned int *cur_val)
{
unsigned int idx;
idx = ucontrol->value.enumerated.item[0];
if (idx >= imux->num_items)
idx = imux->num_items - 1;
if (*cur_val == idx && ! codec->in_resume)
return 0;
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
imux->items[idx].index);
*cur_val = idx;
return 1;
}
/*
* Multi-channel / digital-out PCM helper functions
*/
/*
* open the digital out in the exclusive mode
*/
int snd_hda_multi_out_dig_open(struct hda_codec *codec, struct hda_multi_out *mout)
{
down(&codec->spdif_mutex);
if (mout->dig_out_used) {
up(&codec->spdif_mutex);
return -EBUSY; /* already being used */
}
mout->dig_out_used = HDA_DIG_EXCLUSIVE;
up(&codec->spdif_mutex);
return 0;
}
/*
* release the digital out
*/
int snd_hda_multi_out_dig_close(struct hda_codec *codec, struct hda_multi_out *mout)
{
down(&codec->spdif_mutex);
mout->dig_out_used = 0;
up(&codec->spdif_mutex);
return 0;
}
/*
* set up more restrictions for analog out
*/
int snd_hda_multi_out_analog_open(struct hda_codec *codec, struct hda_multi_out *mout,
snd_pcm_substream_t *substream)
{
substream->runtime->hw.channels_max = mout->max_channels;
return snd_pcm_hw_constraint_step(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_CHANNELS, 2);
}
/*
* 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,
snd_pcm_substream_t *substream)
{
hda_nid_t *nids = mout->dac_nids;
int chs = substream->runtime->channels;
int i;
down(&codec->spdif_mutex);
if (mout->dig_out_nid && mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
if (chs == 2 &&
snd_hda_is_supported_format(codec, mout->dig_out_nid, format) &&
! (codec->spdif_status & IEC958_AES0_NONAUDIO)) {
mout->dig_out_used = HDA_DIG_ANALOG_DUP;
/* setup digital receiver */
snd_hda_codec_setup_stream(codec, mout->dig_out_nid,
stream_tag, 0, format);
} else {
mout->dig_out_used = 0;
snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
}
}
up(&codec->spdif_mutex);
/* front */
snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 0, format);
if (mout->hp_nid)
/* headphone out will just decode front left/right (stereo) */
snd_hda_codec_setup_stream(codec, mout->hp_nid, 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 /* copy front */
snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 0,
format);
}
return 0;
}
/*
* clean up the setting for analog out
*/
int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, struct hda_multi_out *mout)
{
hda_nid_t *nids = mout->dac_nids;
int i;
for (i = 0; i < mout->num_dacs; i++)
snd_hda_codec_setup_stream(codec, nids[i], 0, 0, 0);
if (mout->hp_nid)
snd_hda_codec_setup_stream(codec, mout->hp_nid, 0, 0, 0);
down(&codec->spdif_mutex);
if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
mout->dig_out_used = 0;
}
up(&codec->spdif_mutex);
return 0;
}
#ifdef CONFIG_PM
/*
* power management
*/
/**
* snd_hda_suspend - suspend the codecs
* @bus: the HDA bus
* @state: suspsend state
*
* Returns 0 if successful.
*/
int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
{
struct list_head *p;
/* FIXME: should handle power widget capabilities */
list_for_each(p, &bus->codec_list) {
struct hda_codec *codec = list_entry(p, struct hda_codec, list);
if (codec->patch_ops.suspend)
codec->patch_ops.suspend(codec, state);
}
return 0;
}
/**
* snd_hda_resume - resume the codecs
* @bus: the HDA bus
* @state: resume state
*
* Returns 0 if successful.
*/
int snd_hda_resume(struct hda_bus *bus)
{
struct list_head *p;
list_for_each(p, &bus->codec_list) {
struct hda_codec *codec = list_entry(p, struct hda_codec, list);
if (codec->patch_ops.resume)
codec->patch_ops.resume(codec);
}
return 0;
}
/**
* snd_hda_resume_ctls - resume controls in the new control list
* @codec: the HDA codec
* @knew: the array of snd_kcontrol_new_t
*
* This function resumes the mixer controls in the snd_kcontrol_new_t array,
* originally for snd_hda_add_new_ctls().
* The array must be terminated with an empty entry as terminator.
*/
int snd_hda_resume_ctls(struct hda_codec *codec, snd_kcontrol_new_t *knew)
{
snd_ctl_elem_value_t *val;
val = kmalloc(sizeof(*val), GFP_KERNEL);
if (! val)
return -ENOMEM;
codec->in_resume = 1;
for (; knew->name; knew++) {
int i, count;
count = knew->count ? knew->count : 1;
for (i = 0; i < count; i++) {
memset(val, 0, sizeof(*val));
val->id.iface = knew->iface;
val->id.device = knew->device;
val->id.subdevice = knew->subdevice;
strcpy(val->id.name, knew->name);
val->id.index = knew->index ? knew->index : i;
/* Assume that get callback reads only from cache,
* not accessing to the real hardware
*/
if (snd_ctl_elem_read(codec->bus->card, val) < 0)
continue;
snd_ctl_elem_write(codec->bus->card, NULL, val);
}
}
codec->in_resume = 0;
kfree(val);
return 0;
}
/**
* snd_hda_resume_spdif_out - resume the digital out
* @codec: the HDA codec
*/
int snd_hda_resume_spdif_out(struct hda_codec *codec)
{
return snd_hda_resume_ctls(codec, dig_mixes);
}
/**
* snd_hda_resume_spdif_in - resume the digital in
* @codec: the HDA codec
*/
int snd_hda_resume_spdif_in(struct hda_codec *codec)
{
return snd_hda_resume_ctls(codec, dig_in_ctls);
}
#endif
/*
* symbols exported for controller modules
*/
EXPORT_SYMBOL(snd_hda_codec_read);
EXPORT_SYMBOL(snd_hda_codec_write);
EXPORT_SYMBOL(snd_hda_sequence_write);
EXPORT_SYMBOL(snd_hda_get_sub_nodes);
EXPORT_SYMBOL(snd_hda_queue_unsol_event);
EXPORT_SYMBOL(snd_hda_bus_new);
EXPORT_SYMBOL(snd_hda_codec_new);
EXPORT_SYMBOL(snd_hda_codec_setup_stream);
EXPORT_SYMBOL(snd_hda_calc_stream_format);
EXPORT_SYMBOL(snd_hda_build_pcms);
EXPORT_SYMBOL(snd_hda_build_controls);
#ifdef CONFIG_PM
EXPORT_SYMBOL(snd_hda_suspend);
EXPORT_SYMBOL(snd_hda_resume);
#endif
/*
* INIT part
*/
static int __init alsa_hda_init(void)
{
return 0;
}
static void __exit alsa_hda_exit(void)
{
}
module_init(alsa_hda_init)
module_exit(alsa_hda_exit)
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