diff options
Diffstat (limited to 'sound/pci/hda/hda_codec.c')
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 1856 |
1 files changed, 1856 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c new file mode 100644 index 000000000000..9ed117ac0c09 --- /dev/null +++ b/sound/pci/hda/hda_codec.c @@ -0,0 +1,1856 @@ +/* + * 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" }, + { 0x13f6, "C-Media" }, + { 0x434d, "C-Media" }, + {} /* 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_printk(KERN_ERR "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) +{ + 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 + */ + +#define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + (idx) * 32 + (dir) * 64) +#define INFO_AMP_CAPS (1<<0) +#define INFO_AMP_VOL (1<<1) + +/* 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 from the cache. + */ +static void 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; + + 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; +} + +/* + * write the current volume in info to the h/w + */ +static void put_vol_mute(struct hda_codec *codec, + 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); +} + +/* + * read/write AMP value. The volume is between 0 to 0x7f, 0x80 = mute bit. + */ +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; + get_vol_mute(codec, info, nid, ch, direction, index); + return info->vol[ch]; +} + +int snd_hda_codec_amp_write(struct hda_codec *codec, hda_nid_t nid, int ch, int direction, int idx, int val) +{ + struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx)); + if (! info) + return 0; + get_vol_mute(codec, info, nid, ch, direction, idx); + if (info->vol[ch] == val && ! codec->in_resume) + return 0; + put_vol_mute(codec, nid, ch, direction, idx, val); + info->vol[ch] = 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); + int val; + long *valp = ucontrol->value.integer.value; + int change = 0; + + if (chs & 1) { + val = *valp & 0x7f; + val |= snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x80; + change = snd_hda_codec_amp_write(codec, nid, 0, dir, idx, val); + valp++; + } + if (chs & 2) { + val = *valp & 0x7f; + val |= snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x80; + change |= snd_hda_codec_amp_write(codec, nid, 1, dir, idx, val); + } + 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); + int val; + long *valp = ucontrol->value.integer.value; + int change = 0; + + if (chs & 1) { + val = snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x7f; + val |= *valp ? 0 : 0x80; + change = snd_hda_codec_amp_write(codec, nid, 0, dir, idx, val); + valp++; + } + if (chs & 2) { + val = snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x7f; + val |= *valp ? 0 : 0x80; + change = snd_hda_codec_amp_write(codec, nid, 1, dir, idx, val); + } + 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.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_vendor; 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_vendor; c++) { + if (c->pci_vendor == subsystem_vendor && + c->pci_device == 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 (i == HDA_REAR && chs == 2) /* copy front to rear */ + snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 0, format); + else if (chs >= (i + 1) * 2) /* independent out */ + snd_hda_codec_setup_stream(codec, nids[i], stream_tag, i * 2, + 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) |