| /* |
| * Universal Interface for Intel High Definition Audio Codec |
| * |
| * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de> |
| * |
| * |
| * This driver is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This driver is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #include <linux/mm.h> |
| #include <linux/init.h> |
| #include <linux/delay.h> |
| #include <linux/slab.h> |
| #include <linux/pci.h> |
| #include <linux/mutex.h> |
| #include <linux/module.h> |
| #include <sound/core.h> |
| #include "hda_codec.h" |
| #include <sound/asoundef.h> |
| #include <sound/tlv.h> |
| #include <sound/initval.h> |
| #include <sound/jack.h> |
| #include "hda_local.h" |
| #include "hda_beep.h" |
| #include "hda_jack.h" |
| #include <sound/hda_hwdep.h> |
| |
| #define CREATE_TRACE_POINTS |
| #include "hda_trace.h" |
| |
| /* |
| * vendor / preset table |
| */ |
| |
| struct hda_vendor_id { |
| unsigned int id; |
| const char *name; |
| }; |
| |
| /* codec vendor labels */ |
| static struct hda_vendor_id hda_vendor_ids[] = { |
| { 0x1002, "ATI" }, |
| { 0x1013, "Cirrus Logic" }, |
| { 0x1057, "Motorola" }, |
| { 0x1095, "Silicon Image" }, |
| { 0x10de, "Nvidia" }, |
| { 0x10ec, "Realtek" }, |
| { 0x1102, "Creative" }, |
| { 0x1106, "VIA" }, |
| { 0x111d, "IDT" }, |
| { 0x11c1, "LSI" }, |
| { 0x11d4, "Analog Devices" }, |
| { 0x13f6, "C-Media" }, |
| { 0x14f1, "Conexant" }, |
| { 0x17e8, "Chrontel" }, |
| { 0x1854, "LG" }, |
| { 0x1aec, "Wolfson Microelectronics" }, |
| { 0x434d, "C-Media" }, |
| { 0x8086, "Intel" }, |
| { 0x8384, "SigmaTel" }, |
| {} /* terminator */ |
| }; |
| |
| static DEFINE_MUTEX(preset_mutex); |
| static LIST_HEAD(hda_preset_tables); |
| |
| int snd_hda_add_codec_preset(struct hda_codec_preset_list *preset) |
| { |
| mutex_lock(&preset_mutex); |
| list_add_tail(&preset->list, &hda_preset_tables); |
| mutex_unlock(&preset_mutex); |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_add_codec_preset); |
| |
| int snd_hda_delete_codec_preset(struct hda_codec_preset_list *preset) |
| { |
| mutex_lock(&preset_mutex); |
| list_del(&preset->list); |
| mutex_unlock(&preset_mutex); |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_delete_codec_preset); |
| |
| #ifdef CONFIG_PM |
| #define codec_in_pm(codec) ((codec)->in_pm) |
| static void hda_power_work(struct work_struct *work); |
| static void hda_keep_power_on(struct hda_codec *codec); |
| #define hda_codec_is_power_on(codec) ((codec)->power_on) |
| static inline void hda_call_pm_notify(struct hda_bus *bus, bool power_up) |
| { |
| if (bus->ops.pm_notify) |
| bus->ops.pm_notify(bus, power_up); |
| } |
| #else |
| #define codec_in_pm(codec) 0 |
| static inline void hda_keep_power_on(struct hda_codec *codec) {} |
| #define hda_codec_is_power_on(codec) 1 |
| #define hda_call_pm_notify(bus, state) {} |
| #endif |
| |
| /** |
| * snd_hda_get_jack_location - Give a location string of the jack |
| * @cfg: pin default config value |
| * |
| * Parse the pin default config value and returns the string of the |
| * jack location, e.g. "Rear", "Front", etc. |
| */ |
| const char *snd_hda_get_jack_location(u32 cfg) |
| { |
| static char *bases[7] = { |
| "N/A", "Rear", "Front", "Left", "Right", "Top", "Bottom", |
| }; |
| static unsigned char specials_idx[] = { |
| 0x07, 0x08, |
| 0x17, 0x18, 0x19, |
| 0x37, 0x38 |
| }; |
| static char *specials[] = { |
| "Rear Panel", "Drive Bar", |
| "Riser", "HDMI", "ATAPI", |
| "Mobile-In", "Mobile-Out" |
| }; |
| int i; |
| cfg = (cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT; |
| if ((cfg & 0x0f) < 7) |
| return bases[cfg & 0x0f]; |
| for (i = 0; i < ARRAY_SIZE(specials_idx); i++) { |
| if (cfg == specials_idx[i]) |
| return specials[i]; |
| } |
| return "UNKNOWN"; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_get_jack_location); |
| |
| /** |
| * snd_hda_get_jack_connectivity - Give a connectivity string of the jack |
| * @cfg: pin default config value |
| * |
| * Parse the pin default config value and returns the string of the |
| * jack connectivity, i.e. external or internal connection. |
| */ |
| const char *snd_hda_get_jack_connectivity(u32 cfg) |
| { |
| static char *jack_locations[4] = { "Ext", "Int", "Sep", "Oth" }; |
| |
| return jack_locations[(cfg >> (AC_DEFCFG_LOCATION_SHIFT + 4)) & 3]; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_get_jack_connectivity); |
| |
| /** |
| * snd_hda_get_jack_type - Give a type string of the jack |
| * @cfg: pin default config value |
| * |
| * Parse the pin default config value and returns the string of the |
| * jack type, i.e. the purpose of the jack, such as Line-Out or CD. |
| */ |
| const char *snd_hda_get_jack_type(u32 cfg) |
| { |
| static char *jack_types[16] = { |
| "Line Out", "Speaker", "HP Out", "CD", |
| "SPDIF Out", "Digital Out", "Modem Line", "Modem Hand", |
| "Line In", "Aux", "Mic", "Telephony", |
| "SPDIF In", "Digitial In", "Reserved", "Other" |
| }; |
| |
| return jack_types[(cfg & AC_DEFCFG_DEVICE) |
| >> AC_DEFCFG_DEVICE_SHIFT]; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_get_jack_type); |
| |
| /* |
| * Compose a 32bit command word to be sent to the HD-audio controller |
| */ |
| static inline unsigned int |
| make_codec_cmd(struct hda_codec *codec, hda_nid_t nid, int direct, |
| unsigned int verb, unsigned int parm) |
| { |
| u32 val; |
| |
| if ((codec->addr & ~0xf) || (direct & ~1) || (nid & ~0x7f) || |
| (verb & ~0xfff) || (parm & ~0xffff)) { |
| printk(KERN_ERR "hda-codec: out of range cmd %x:%x:%x:%x:%x\n", |
| codec->addr, direct, nid, verb, parm); |
| return ~0; |
| } |
| |
| val = (u32)codec->addr << 28; |
| val |= (u32)direct << 27; |
| val |= (u32)nid << 20; |
| val |= verb << 8; |
| val |= parm; |
| return val; |
| } |
| |
| /* |
| * Send and receive a verb |
| */ |
| static int codec_exec_verb(struct hda_codec *codec, unsigned int cmd, |
| unsigned int *res) |
| { |
| struct hda_bus *bus = codec->bus; |
| int err; |
| |
| if (cmd == ~0) |
| return -1; |
| |
| if (res) |
| *res = -1; |
| again: |
| snd_hda_power_up(codec); |
| mutex_lock(&bus->cmd_mutex); |
| trace_hda_send_cmd(codec, cmd); |
| err = bus->ops.command(bus, cmd); |
| if (!err && res) { |
| *res = bus->ops.get_response(bus, codec->addr); |
| trace_hda_get_response(codec, *res); |
| } |
| mutex_unlock(&bus->cmd_mutex); |
| snd_hda_power_down(codec); |
| if (!codec_in_pm(codec) && res && *res == -1 && bus->rirb_error) { |
| if (bus->response_reset) { |
| snd_printd("hda_codec: resetting BUS due to " |
| "fatal communication error\n"); |
| trace_hda_bus_reset(bus); |
| bus->ops.bus_reset(bus); |
| } |
| goto again; |
| } |
| /* clear reset-flag when the communication gets recovered */ |
| if (!err || codec_in_pm(codec)) |
| bus->response_reset = 0; |
| return err; |
| } |
| |
| /** |
| * 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 cmd = make_codec_cmd(codec, nid, direct, verb, parm); |
| unsigned int res; |
| if (codec_exec_verb(codec, cmd, &res)) |
| return -1; |
| return res; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_read); |
| |
| /** |
| * 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) |
| { |
| unsigned int cmd = make_codec_cmd(codec, nid, direct, verb, parm); |
| unsigned int res; |
| return codec_exec_verb(codec, cmd, |
| codec->bus->sync_write ? &res : NULL); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_write); |
| |
| /** |
| * 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); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_sequence_write); |
| |
| /** |
| * 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); |
| if (parm == -1) |
| return 0; |
| *start_id = (parm >> 16) & 0x7fff; |
| return (int)(parm & 0x7fff); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_get_sub_nodes); |
| |
| /* look up the cached results */ |
| static hda_nid_t *lookup_conn_list(struct snd_array *array, hda_nid_t nid) |
| { |
| int i, len; |
| for (i = 0; i < array->used; ) { |
| hda_nid_t *p = snd_array_elem(array, i); |
| if (nid == *p) |
| return p; |
| len = p[1]; |
| i += len + 2; |
| } |
| return NULL; |
| } |
| |
| /* read the connection and add to the cache */ |
| static int read_and_add_raw_conns(struct hda_codec *codec, hda_nid_t nid) |
| { |
| hda_nid_t list[HDA_MAX_CONNECTIONS]; |
| int len; |
| |
| len = snd_hda_get_raw_connections(codec, nid, list, ARRAY_SIZE(list)); |
| if (len < 0) |
| return len; |
| return snd_hda_override_conn_list(codec, nid, len, list); |
| } |
| |
| /** |
| * snd_hda_get_connections - copy connection list |
| * @codec: the HDA codec |
| * @nid: NID to parse |
| * @conn_list: connection list array; when NULL, checks only the size |
| * @max_conns: max. number of connections to store |
| * |
| * Parses the connection list of the given widget and stores the list |
| * of NIDs. |
| * |
| * Returns the number of connections, or a negative error code. |
| */ |
| int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid, |
| hda_nid_t *conn_list, int max_conns) |
| { |
| struct snd_array *array = &codec->conn_lists; |
| int len; |
| hda_nid_t *p; |
| bool added = false; |
| |
| again: |
| mutex_lock(&codec->hash_mutex); |
| len = -1; |
| /* if the connection-list is already cached, read it */ |
| p = lookup_conn_list(array, nid); |
| if (p) { |
| len = p[1]; |
| if (conn_list && len > max_conns) { |
| snd_printk(KERN_ERR "hda_codec: " |
| "Too many connections %d for NID 0x%x\n", |
| len, nid); |
| mutex_unlock(&codec->hash_mutex); |
| return -EINVAL; |
| } |
| if (conn_list && len) |
| memcpy(conn_list, p + 2, len * sizeof(hda_nid_t)); |
| } |
| mutex_unlock(&codec->hash_mutex); |
| if (len >= 0) |
| return len; |
| if (snd_BUG_ON(added)) |
| return -EINVAL; |
| |
| len = read_and_add_raw_conns(codec, nid); |
| if (len < 0) |
| return len; |
| added = true; |
| goto again; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_get_connections); |
| |
| /** |
| * snd_hda_get_raw_connections - copy connection list without cache |
| * @codec: the HDA codec |
| * @nid: NID to parse |
| * @conn_list: connection list array |
| * @max_conns: max. number of connections to store |
| * |
| * Like snd_hda_get_connections(), copy the connection list but without |
| * checking through the connection-list cache. |
| * Currently called only from hda_proc.c, so not exported. |
| */ |
| int snd_hda_get_raw_connections(struct hda_codec *codec, hda_nid_t nid, |
| hda_nid_t *conn_list, int max_conns) |
| { |
| unsigned int parm; |
| int i, conn_len, conns; |
| unsigned int shift, num_elems, mask; |
| unsigned int wcaps; |
| hda_nid_t prev_nid; |
| |
| if (snd_BUG_ON(!conn_list || max_conns <= 0)) |
| return -EINVAL; |
| |
| wcaps = get_wcaps(codec, nid); |
| if (!(wcaps & AC_WCAP_CONN_LIST) && |
| get_wcaps_type(wcaps) != AC_WID_VOL_KNB) |
| return 0; |
| |
| 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; |
| 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); |
| if (parm == -1 && codec->bus->rirb_error) |
| return -EIO; |
| conn_list[0] = parm & mask; |
| return 1; |
| } |
| |
| /* multi connection */ |
| conns = 0; |
| prev_nid = 0; |
| for (i = 0; i < conn_len; i++) { |
| int range_val; |
| hda_nid_t val, n; |
| |
| if (i % num_elems == 0) { |
| parm = snd_hda_codec_read(codec, nid, 0, |
| AC_VERB_GET_CONNECT_LIST, i); |
| if (parm == -1 && codec->bus->rirb_error) |
| return -EIO; |
| } |
| range_val = !!(parm & (1 << (shift-1))); /* ranges */ |
| val = parm & mask; |
| if (val == 0) { |
| snd_printk(KERN_WARNING "hda_codec: " |
| "invalid CONNECT_LIST verb %x[%i]:%x\n", |
| nid, i, parm); |
| return 0; |
| } |
| parm >>= shift; |
| if (range_val) { |
| /* ranges between the previous and this one */ |
| if (!prev_nid || prev_nid >= val) { |
| snd_printk(KERN_WARNING "hda_codec: " |
| "invalid dep_range_val %x:%x\n", |
| prev_nid, val); |
| continue; |
| } |
| for (n = prev_nid + 1; n <= val; n++) { |
| if (conns >= max_conns) { |
| snd_printk(KERN_ERR "hda_codec: " |
| "Too many connections %d for NID 0x%x\n", |
| conns, nid); |
| return -EINVAL; |
| } |
| conn_list[conns++] = n; |
| } |
| } else { |
| if (conns >= max_conns) { |
| snd_printk(KERN_ERR "hda_codec: " |
| "Too many connections %d for NID 0x%x\n", |
| conns, nid); |
| return -EINVAL; |
| } |
| conn_list[conns++] = val; |
| } |
| prev_nid = val; |
| } |
| return conns; |
| } |
| |
| static bool add_conn_list(struct snd_array *array, hda_nid_t nid) |
| { |
| hda_nid_t *p = snd_array_new(array); |
| if (!p) |
| return false; |
| *p = nid; |
| return true; |
| } |
| |
| /** |
| * snd_hda_override_conn_list - add/modify the connection-list to cache |
| * @codec: the HDA codec |
| * @nid: NID to parse |
| * @len: number of connection list entries |
| * @list: the list of connection entries |
| * |
| * Add or modify the given connection-list to the cache. If the corresponding |
| * cache already exists, invalidate it and append a new one. |
| * |
| * Returns zero or a negative error code. |
| */ |
| int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len, |
| const hda_nid_t *list) |
| { |
| struct snd_array *array = &codec->conn_lists; |
| hda_nid_t *p; |
| int i, old_used; |
| |
| mutex_lock(&codec->hash_mutex); |
| p = lookup_conn_list(array, nid); |
| if (p) |
| *p = -1; /* invalidate the old entry */ |
| |
| old_used = array->used; |
| if (!add_conn_list(array, nid) || !add_conn_list(array, len)) |
| goto error_add; |
| for (i = 0; i < len; i++) |
| if (!add_conn_list(array, list[i])) |
| goto error_add; |
| mutex_unlock(&codec->hash_mutex); |
| return 0; |
| |
| error_add: |
| array->used = old_used; |
| mutex_unlock(&codec->hash_mutex); |
| return -ENOMEM; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_override_conn_list); |
| |
| /** |
| * snd_hda_get_conn_index - get the connection index of the given NID |
| * @codec: the HDA codec |
| * @mux: NID containing the list |
| * @nid: NID to select |
| * @recursive: 1 when searching NID recursively, otherwise 0 |
| * |
| * Parses the connection list of the widget @mux and checks whether the |
| * widget @nid is present. If it is, return the connection index. |
| * Otherwise it returns -1. |
| */ |
| int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux, |
| hda_nid_t nid, int recursive) |
| { |
| hda_nid_t conn[HDA_MAX_NUM_INPUTS]; |
| int i, nums; |
| |
| nums = snd_hda_get_connections(codec, mux, conn, ARRAY_SIZE(conn)); |
| for (i = 0; i < nums; i++) |
| if (conn[i] == nid) |
| return i; |
| if (!recursive) |
| return -1; |
| if (recursive > 5) { |
| snd_printd("hda_codec: too deep connection for 0x%x\n", nid); |
| return -1; |
| } |
| recursive++; |
| for (i = 0; i < nums; i++) { |
| unsigned int type = get_wcaps_type(get_wcaps(codec, conn[i])); |
| if (type == AC_WID_PIN || type == AC_WID_AUD_OUT) |
| continue; |
| if (snd_hda_get_conn_index(codec, conn[i], nid, recursive) >= 0) |
| return i; |
| } |
| return -1; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_get_conn_index); |
| |
| /** |
| * 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; |
| |
| trace_hda_unsol_event(bus, res, res_ex); |
| unsol = bus->unsol; |
| if (!unsol) |
| 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(bus->workq, &unsol->work); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_queue_unsol_event); |
| |
| /* |
| * process queued unsolicited events |
| */ |
| static void process_unsol_events(struct work_struct *work) |
| { |
| struct hda_bus_unsolicited *unsol = |
| container_of(work, struct hda_bus_unsolicited, work); |
| struct hda_bus *bus = unsol->bus; |
| 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; |
| |
| if (bus->unsol) /* already initialized */ |
| return 0; |
| |
| unsol = kzalloc(sizeof(*unsol), GFP_KERNEL); |
| if (!unsol) { |
| snd_printk(KERN_ERR "hda_codec: " |
| "can't allocate unsolicited queue\n"); |
| return -ENOMEM; |
| } |
| INIT_WORK(&unsol->work, process_unsol_events); |
| unsol->bus = 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 hda_codec *codec, *n; |
| |
| if (!bus) |
| return 0; |
| if (bus->workq) |
| flush_workqueue(bus->workq); |
| if (bus->unsol) |
| kfree(bus->unsol); |
| list_for_each_entry_safe(codec, n, &bus->codec_list, list) { |
| snd_hda_codec_free(codec); |
| } |
| if (bus->ops.private_free) |
| bus->ops.private_free(bus); |
| if (bus->workq) |
| destroy_workqueue(bus->workq); |
| kfree(bus); |
| return 0; |
| } |
| |
| static int snd_hda_bus_dev_free(struct snd_device *device) |
| { |
| struct hda_bus *bus = device->device_data; |
| bus->shutdown = 1; |
| return snd_hda_bus_free(bus); |
| } |
| |
| #ifdef CONFIG_SND_HDA_HWDEP |
| static int snd_hda_bus_dev_register(struct snd_device *device) |
| { |
| struct hda_bus *bus = device->device_data; |
| struct hda_codec *codec; |
| list_for_each_entry(codec, &bus->codec_list, list) { |
| snd_hda_hwdep_add_sysfs(codec); |
| snd_hda_hwdep_add_power_sysfs(codec); |
| } |
| return 0; |
| } |
| #else |
| #define snd_hda_bus_dev_register NULL |
| #endif |
| |
| /** |
| * 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(struct snd_card *card, |
| const struct hda_bus_template *temp, |
| struct hda_bus **busp) |
| { |
| struct hda_bus *bus; |
| int err; |
| static struct snd_device_ops dev_ops = { |
| .dev_register = snd_hda_bus_dev_register, |
| .dev_free = snd_hda_bus_dev_free, |
| }; |
| |
| if (snd_BUG_ON(!temp)) |
| return -EINVAL; |
| if (snd_BUG_ON(!temp->ops.command || !temp->ops.get_response)) |
| return -EINVAL; |
| |
| if (busp) |
| *busp = NULL; |
| |
| bus = kzalloc(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->power_save = temp->power_save; |
| bus->ops = temp->ops; |
| |
| mutex_init(&bus->cmd_mutex); |
| mutex_init(&bus->prepare_mutex); |
| INIT_LIST_HEAD(&bus->codec_list); |
| |
| snprintf(bus->workq_name, sizeof(bus->workq_name), |
| "hd-audio%d", card->number); |
| bus->workq = create_singlethread_workqueue(bus->workq_name); |
| if (!bus->workq) { |
| snd_printk(KERN_ERR "cannot create workqueue %s\n", |
| bus->workq_name); |
| kfree(bus); |
| return -ENOMEM; |
| } |
| |
| err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops); |
| if (err < 0) { |
| snd_hda_bus_free(bus); |
| return err; |
| } |
| if (busp) |
| *busp = bus; |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_bus_new); |
| |
| #ifdef CONFIG_SND_HDA_GENERIC |
| #define is_generic_config(codec) \ |
| (codec->modelname && !strcmp(codec->modelname, "generic")) |
| #else |
| #define is_generic_config(codec) 0 |
| #endif |
| |
| #ifdef MODULE |
| #define HDA_MODREQ_MAX_COUNT 2 /* two request_modules()'s */ |
| #else |
| #define HDA_MODREQ_MAX_COUNT 0 /* all presets are statically linked */ |
| #endif |
| |
| /* |
| * find a matching codec preset |
| */ |
| static const struct hda_codec_preset * |
| find_codec_preset(struct hda_codec *codec) |
| { |
| struct hda_codec_preset_list *tbl; |
| const struct hda_codec_preset *preset; |
| unsigned int mod_requested = 0; |
| |
| if (is_generic_config(codec)) |
| return NULL; /* use the generic parser */ |
| |
| again: |
| mutex_lock(&preset_mutex); |
| list_for_each_entry(tbl, &hda_preset_tables, list) { |
| if (!try_module_get(tbl->owner)) { |
| snd_printk(KERN_ERR "hda_codec: cannot module_get\n"); |
| continue; |
| } |
| for (preset = tbl->preset; preset->id; preset++) { |
| u32 mask = preset->mask; |
| if (preset->afg && preset->afg != codec->afg) |
| continue; |
| if (preset->mfg && preset->mfg != codec->mfg) |
| continue; |
| if (!mask) |
| mask = ~0; |
| if (preset->id == (codec->vendor_id & mask) && |
| (!preset->rev || |
| preset->rev == codec->revision_id)) { |
| mutex_unlock(&preset_mutex); |
| codec->owner = tbl->owner; |
| return preset; |
| } |
| } |
| module_put(tbl->owner); |
| } |
| mutex_unlock(&preset_mutex); |
| |
| if (mod_requested < HDA_MODREQ_MAX_COUNT) { |
| char name[32]; |
| if (!mod_requested) |
| snprintf(name, sizeof(name), "snd-hda-codec-id:%08x", |
| codec->vendor_id); |
| else |
| snprintf(name, sizeof(name), "snd-hda-codec-id:%04x*", |
| (codec->vendor_id >> 16) & 0xffff); |
| request_module(name); |
| mod_requested++; |
| goto again; |
| } |
| return NULL; |
| } |
| |
| /* |
| * get_codec_name - store the codec name |
| */ |
| static int get_codec_name(struct hda_codec *codec) |
| { |
| const struct hda_vendor_id *c; |
| const char *vendor = NULL; |
| u16 vendor_id = codec->vendor_id >> 16; |
| char tmp[16]; |
| |
| if (codec->vendor_name) |
| goto get_chip_name; |
| |
| 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; |
| } |
| codec->vendor_name = kstrdup(vendor, GFP_KERNEL); |
| if (!codec->vendor_name) |
| return -ENOMEM; |
| |
| get_chip_name: |
| if (codec->chip_name) |
| return 0; |
| |
| if (codec->preset && codec->preset->name) |
| codec->chip_name = kstrdup(codec->preset->name, GFP_KERNEL); |
| else { |
| sprintf(tmp, "ID %x", codec->vendor_id & 0xffff); |
| codec->chip_name = kstrdup(tmp, GFP_KERNEL); |
| } |
| if (!codec->chip_name) |
| return -ENOMEM; |
| return 0; |
| } |
| |
| /* |
| * look for an AFG and MFG nodes |
| */ |
| static void setup_fg_nodes(struct hda_codec *codec) |
| { |
| int i, total_nodes, function_id; |
| hda_nid_t nid; |
| |
| total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid); |
| for (i = 0; i < total_nodes; i++, nid++) { |
| function_id = snd_hda_param_read(codec, nid, |
| AC_PAR_FUNCTION_TYPE); |
| switch (function_id & 0xff) { |
| case AC_GRP_AUDIO_FUNCTION: |
| codec->afg = nid; |
| codec->afg_function_id = function_id & 0xff; |
| codec->afg_unsol = (function_id >> 8) & 1; |
| break; |
| case AC_GRP_MODEM_FUNCTION: |
| codec->mfg = nid; |
| codec->mfg_function_id = function_id & 0xff; |
| codec->mfg_unsol = (function_id >> 8) & 1; |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| /* |
| * read widget caps for each widget and store in cache |
| */ |
| static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node) |
| { |
| int i; |
| hda_nid_t nid; |
| |
| codec->num_nodes = snd_hda_get_sub_nodes(codec, fg_node, |
| &codec->start_nid); |
| codec->wcaps = kmalloc(codec->num_nodes * 4, GFP_KERNEL); |
| if (!codec->wcaps) |
| return -ENOMEM; |
| nid = codec->start_nid; |
| for (i = 0; i < codec->num_nodes; i++, nid++) |
| codec->wcaps[i] = snd_hda_param_read(codec, nid, |
| AC_PAR_AUDIO_WIDGET_CAP); |
| return 0; |
| } |
| |
| /* read all pin default configurations and save codec->init_pins */ |
| static int read_pin_defaults(struct hda_codec *codec) |
| { |
| int i; |
| hda_nid_t nid = codec->start_nid; |
| |
| for (i = 0; i < codec->num_nodes; i++, nid++) { |
| struct hda_pincfg *pin; |
| unsigned int wcaps = get_wcaps(codec, nid); |
| unsigned int wid_type = get_wcaps_type(wcaps); |
| if (wid_type != AC_WID_PIN) |
| continue; |
| pin = snd_array_new(&codec->init_pins); |
| if (!pin) |
| return -ENOMEM; |
| pin->nid = nid; |
| pin->cfg = snd_hda_codec_read(codec, nid, 0, |
| AC_VERB_GET_CONFIG_DEFAULT, 0); |
| pin->ctrl = snd_hda_codec_read(codec, nid, 0, |
| AC_VERB_GET_PIN_WIDGET_CONTROL, |
| 0); |
| } |
| return 0; |
| } |
| |
| /* look up the given pin config list and return the item matching with NID */ |
| static struct hda_pincfg *look_up_pincfg(struct hda_codec *codec, |
| struct snd_array *array, |
| hda_nid_t nid) |
| { |
| int i; |
| for (i = 0; i < array->used; i++) { |
| struct hda_pincfg *pin = snd_array_elem(array, i); |
| if (pin->nid == nid) |
| return pin; |
| } |
| return NULL; |
| } |
| |
| /* set the current pin config value for the given NID. |
| * the value is cached, and read via snd_hda_codec_get_pincfg() |
| */ |
| int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list, |
| hda_nid_t nid, unsigned int cfg) |
| { |
| struct hda_pincfg *pin; |
| |
| if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN) |
| return -EINVAL; |
| |
| pin = look_up_pincfg(codec, list, nid); |
| if (!pin) { |
| pin = snd_array_new(list); |
| if (!pin) |
| return -ENOMEM; |
| pin->nid = nid; |
| } |
| pin->cfg = cfg; |
| return 0; |
| } |
| |
| /** |
| * snd_hda_codec_set_pincfg - Override a pin default configuration |
| * @codec: the HDA codec |
| * @nid: NID to set the pin config |
| * @cfg: the pin default config value |
| * |
| * Override a pin default configuration value in the cache. |
| * This value can be read by snd_hda_codec_get_pincfg() in a higher |
| * priority than the real hardware value. |
| */ |
| int snd_hda_codec_set_pincfg(struct hda_codec *codec, |
| hda_nid_t nid, unsigned int cfg) |
| { |
| return snd_hda_add_pincfg(codec, &codec->driver_pins, nid, cfg); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_set_pincfg); |
| |
| /** |
| * snd_hda_codec_get_pincfg - Obtain a pin-default configuration |
| * @codec: the HDA codec |
| * @nid: NID to get the pin config |
| * |
| * Get the current pin config value of the given pin NID. |
| * If the pincfg value is cached or overridden via sysfs or driver, |
| * returns the cached value. |
| */ |
| unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid) |
| { |
| struct hda_pincfg *pin; |
| |
| #ifdef CONFIG_SND_HDA_HWDEP |
| pin = look_up_pincfg(codec, &codec->user_pins, nid); |
| if (pin) |
| return pin->cfg; |
| #endif |
| pin = look_up_pincfg(codec, &codec->driver_pins, nid); |
| if (pin) |
| return pin->cfg; |
| pin = look_up_pincfg(codec, &codec->init_pins, nid); |
| if (pin) |
| return pin->cfg; |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_get_pincfg); |
| |
| /** |
| * snd_hda_shutup_pins - Shut up all pins |
| * @codec: the HDA codec |
| * |
| * Clear all pin controls to shup up before suspend for avoiding click noise. |
| * The controls aren't cached so that they can be resumed properly. |
| */ |
| void snd_hda_shutup_pins(struct hda_codec *codec) |
| { |
| int i; |
| /* don't shut up pins when unloading the driver; otherwise it breaks |
| * the default pin setup at the next load of the driver |
| */ |
| if (codec->bus->shutdown) |
| return; |
| for (i = 0; i < codec->init_pins.used; i++) { |
| struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i); |
| /* use read here for syncing after issuing each verb */ |
| snd_hda_codec_read(codec, pin->nid, 0, |
| AC_VERB_SET_PIN_WIDGET_CONTROL, 0); |
| } |
| codec->pins_shutup = 1; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_shutup_pins); |
| |
| #ifdef CONFIG_PM |
| /* Restore the pin controls cleared previously via snd_hda_shutup_pins() */ |
| static void restore_shutup_pins(struct hda_codec *codec) |
| { |
| int i; |
| if (!codec->pins_shutup) |
| return; |
| if (codec->bus->shutdown) |
| return; |
| for (i = 0; i < codec->init_pins.used; i++) { |
| struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i); |
| snd_hda_codec_write(codec, pin->nid, 0, |
| AC_VERB_SET_PIN_WIDGET_CONTROL, |
| pin->ctrl); |
| } |
| codec->pins_shutup = 0; |
| } |
| #endif |
| |
| static void hda_jackpoll_work(struct work_struct *work) |
| { |
| struct hda_codec *codec = |
| container_of(work, struct hda_codec, jackpoll_work.work); |
| if (!codec->jackpoll_interval) |
| return; |
| |
| snd_hda_jack_set_dirty_all(codec); |
| snd_hda_jack_poll_all(codec); |
| queue_delayed_work(codec->bus->workq, &codec->jackpoll_work, |
| codec->jackpoll_interval); |
| } |
| |
| static void init_hda_cache(struct hda_cache_rec *cache, |
| unsigned int record_size); |
| static void free_hda_cache(struct hda_cache_rec *cache); |
| |
| /* release all pincfg lists */ |
| static void free_init_pincfgs(struct hda_codec *codec) |
| { |
| snd_array_free(&codec->driver_pins); |
| #ifdef CONFIG_SND_HDA_HWDEP |
| snd_array_free(&codec->user_pins); |
| #endif |
| snd_array_free(&codec->init_pins); |
| } |
| |
| /* |
| * audio-converter setup caches |
| */ |
| struct hda_cvt_setup { |
| hda_nid_t nid; |
| u8 stream_tag; |
| u8 channel_id; |
| u16 format_id; |
| unsigned char active; /* cvt is currently used */ |
| unsigned char dirty; /* setups should be cleared */ |
| }; |
| |
| /* get or create a cache entry for the given audio converter NID */ |
| static struct hda_cvt_setup * |
| get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid) |
| { |
| struct hda_cvt_setup *p; |
| int i; |
| |
| for (i = 0; i < codec->cvt_setups.used; i++) { |
| p = snd_array_elem(&codec->cvt_setups, i); |
| if (p->nid == nid) |
| return p; |
| } |
| p = snd_array_new(&codec->cvt_setups); |
| if (p) |
| p->nid = nid; |
| return p; |
| } |
| |
| /* |
| * codec destructor |
| */ |
| static void snd_hda_codec_free(struct hda_codec *codec) |
| { |
| if (!codec) |
| return; |
| cancel_delayed_work_sync(&codec->jackpoll_work); |
| snd_hda_jack_tbl_clear(codec); |
| free_init_pincfgs(codec); |
| #ifdef CONFIG_PM |
| cancel_delayed_work(&codec->power_work); |
| flush_workqueue(codec->bus->workq); |
| #endif |
| list_del(&codec->list); |
| snd_array_free(&codec->mixers); |
| snd_array_free(&codec->nids); |
| snd_array_free(&codec->cvt_setups); |
| snd_array_free(&codec->conn_lists); |
| snd_array_free(&codec->spdif_out); |
| codec->bus->caddr_tbl[codec->addr] = NULL; |
| if (codec->patch_ops.free) |
| codec->patch_ops.free(codec); |
| #ifdef CONFIG_PM |
| if (!codec->pm_down_notified) /* cancel leftover refcounts */ |
| hda_call_pm_notify(codec->bus, false); |
| #endif |
| module_put(codec->owner); |
| free_hda_cache(&codec->amp_cache); |
| free_hda_cache(&codec->cmd_cache); |
| kfree(codec->vendor_name); |
| kfree(codec->chip_name); |
| kfree(codec->modelname); |
| kfree(codec->wcaps); |
| kfree(codec); |
| } |
| |
| static bool snd_hda_codec_get_supported_ps(struct hda_codec *codec, |
| hda_nid_t fg, unsigned int power_state); |
| |
| static unsigned int hda_set_power_state(struct hda_codec *codec, |
| unsigned int power_state); |
| |
| /** |
| * 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[31]; |
| hda_nid_t fg; |
| int err; |
| |
| if (snd_BUG_ON(!bus)) |
| return -EINVAL; |
| if (snd_BUG_ON(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 = kzalloc(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; |
| mutex_init(&codec->spdif_mutex); |
| mutex_init(&codec->control_mutex); |
| mutex_init(&codec->hash_mutex); |
| init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info)); |
| init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head)); |
| snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32); |
| snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32); |
| snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16); |
| snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16); |
| snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8); |
| snd_array_init(&codec->conn_lists, sizeof(hda_nid_t), 64); |
| snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16); |
| snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16); |
| INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work); |
| |
| #ifdef CONFIG_PM |
| spin_lock_init(&codec->power_lock); |
| INIT_DELAYED_WORK(&codec->power_work, hda_power_work); |
| /* snd_hda_codec_new() marks the codec as power-up, and leave it as is. |
| * the caller has to power down appropriatley after initialization |
| * phase. |
| */ |
| hda_keep_power_on(codec); |
| hda_call_pm_notify(bus, true); |
| #endif |
| |
| if (codec->bus->modelname) { |
| codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL); |
| if (!codec->modelname) { |
| snd_hda_codec_free(codec); |
| return -ENODEV; |
| } |
| } |
| |
| 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); |
| if (codec->vendor_id == -1) |
| /* read again, hopefully the access method was corrected |
| * in the last read... |
| */ |
| 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); |
| |
| setup_fg_nodes(codec); |
| if (!codec->afg && !codec->mfg) { |
| snd_printdd("hda_codec: no AFG or MFG node found\n"); |
| err = -ENODEV; |
| goto error; |
| } |
| |
| fg = codec->afg ? codec->afg : codec->mfg; |
| err = read_widget_caps(codec, fg); |
| if (err < 0) { |
| snd_printk(KERN_ERR "hda_codec: cannot malloc\n"); |
| goto error; |
| } |
| err = read_pin_defaults(codec); |
| if (err < 0) |
| goto error; |
| |
| if (!codec->subsystem_id) { |
| codec->subsystem_id = |
| snd_hda_codec_read(codec, fg, 0, |
| AC_VERB_GET_SUBSYSTEM_ID, 0); |
| } |
| |
| #ifdef CONFIG_PM |
| codec->d3_stop_clk = snd_hda_codec_get_supported_ps(codec, fg, |
| AC_PWRST_CLKSTOP); |
| if (!codec->d3_stop_clk) |
| bus->power_keep_link_on = 1; |
| #endif |
| codec->epss = snd_hda_codec_get_supported_ps(codec, fg, |
| AC_PWRST_EPSS); |
| |
| /* power-up all before initialization */ |
| hda_set_power_state(codec, AC_PWRST_D0); |
| |
| snd_hda_codec_proc_new(codec); |
| |
| snd_hda_create_hwdep(codec); |
| |
| sprintf(component, "HDA:%08x,%08x,%08x", codec->vendor_id, |
| codec->subsystem_id, codec->revision_id); |
| snd_component_add(codec->bus->card, component); |
| |
| if (codecp) |
| *codecp = codec; |
| return 0; |
| |
| error: |
| snd_hda_codec_free(codec); |
| return err; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_new); |
| |
| /** |
| * snd_hda_codec_configure - (Re-)configure the HD-audio codec |
| * @codec: the HDA codec |
| * |
| * Start parsing of the given codec tree and (re-)initialize the whole |
| * patch instance. |
| * |
| * Returns 0 if successful or a negative error code. |
| */ |
| int snd_hda_codec_configure(struct hda_codec *codec) |
| { |
| int err; |
| |
| codec->preset = find_codec_preset(codec); |
| if (!codec->vendor_name || !codec->chip_name) { |
| err = get_codec_name(codec); |
| if (err < 0) |
| return err; |
| } |
| |
| if (is_generic_config(codec)) { |
| err = snd_hda_parse_generic_codec(codec); |
| goto patched; |
| } |
| if (codec->preset && codec->preset->patch) { |
| err = codec->preset->patch(codec); |
| goto patched; |
| } |
| |
| /* call the default parser */ |
| err = snd_hda_parse_generic_codec(codec); |
| if (err < 0) |
| printk(KERN_ERR "hda-codec: No codec parser is available\n"); |
| |
| patched: |
| if (!err && codec->patch_ops.unsol_event) |
| err = init_unsol_queue(codec->bus); |
| /* audio codec should override the mixer name */ |
| if (!err && (codec->afg || !*codec->bus->card->mixername)) |
| snprintf(codec->bus->card->mixername, |
| sizeof(codec->bus->card->mixername), |
| "%s %s", codec->vendor_name, codec->chip_name); |
| return err; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_configure); |
| |
| /* update the stream-id if changed */ |
| static void update_pcm_stream_id(struct hda_codec *codec, |
| struct hda_cvt_setup *p, hda_nid_t nid, |
| u32 stream_tag, int channel_id) |
| { |
| unsigned int oldval, newval; |
| |
| if (p->stream_tag != stream_tag || p->channel_id != channel_id) { |
| oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0); |
| newval = (stream_tag << 4) | channel_id; |
| if (oldval != newval) |
| snd_hda_codec_write(codec, nid, 0, |
| AC_VERB_SET_CHANNEL_STREAMID, |
| newval); |
| p->stream_tag = stream_tag; |
| p->channel_id = channel_id; |
| } |
| } |
| |
| /* update the format-id if changed */ |
| static void update_pcm_format(struct hda_codec *codec, struct hda_cvt_setup *p, |
| hda_nid_t nid, int format) |
| { |
| unsigned int oldval; |
| |
| if (p->format_id != format) { |
| oldval = snd_hda_codec_read(codec, nid, 0, |
| AC_VERB_GET_STREAM_FORMAT, 0); |
| if (oldval != format) { |
| msleep(1); |
| snd_hda_codec_write(codec, nid, 0, |
| AC_VERB_SET_STREAM_FORMAT, |
| format); |
| } |
| p->format_id = format; |
| } |
| } |
| |
| /** |
| * snd_hda_codec_setup_stream - set up the codec for streaming |
| * @codec: the CODEC to set up |
| * @nid: the NID to set up |
| * @stream_tag: stream tag to pass, it's between 0x1 and 0xf. |
| * @channel_id: channel id to pass, zero based. |
| * @format: stream format. |
| */ |
| void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid, |
| u32 stream_tag, |
| int channel_id, int format) |
| { |
| struct hda_codec *c; |
| struct hda_cvt_setup *p; |
| int type; |
| int i; |
| |
| if (!nid) |
| return; |
| |
| snd_printdd("hda_codec_setup_stream: " |
| "NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n", |
| nid, stream_tag, channel_id, format); |
| p = get_hda_cvt_setup(codec, nid); |
| if (!p) |
| return; |
| |
| if (codec->pcm_format_first) |
| update_pcm_format(codec, p, nid, format); |
| update_pcm_stream_id(codec, p, nid, stream_tag, channel_id); |
| if (!codec->pcm_format_first) |
| update_pcm_format(codec, p, nid, format); |
| |
| p->active = 1; |
| p->dirty = 0; |
| |
| /* make other inactive cvts with the same stream-tag dirty */ |
| type = get_wcaps_type(get_wcaps(codec, nid)); |
| list_for_each_entry(c, &codec->bus->codec_list, list) { |
| for (i = 0; i < c->cvt_setups.used; i++) { |
| p = snd_array_elem(&c->cvt_setups, i); |
| if (!p->active && p->stream_tag == stream_tag && |
| get_wcaps_type(get_wcaps(c, p->nid)) == type) |
| p->dirty = 1; |
| } |
| } |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_setup_stream); |
| |
| static void really_cleanup_stream(struct hda_codec *codec, |
| struct hda_cvt_setup *q); |
| |
| /** |
| * __snd_hda_codec_cleanup_stream - clean up the codec for closing |
| * @codec: the CODEC to clean up |
| * @nid: the NID to clean up |
| * @do_now: really clean up the stream instead of clearing the active flag |
| */ |
| void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid, |
| int do_now) |
| { |
| struct hda_cvt_setup *p; |
| |
| if (!nid) |
| return; |
| |
| if (codec->no_sticky_stream) |
| do_now = 1; |
| |
| snd_printdd("hda_codec_cleanup_stream: NID=0x%x\n", nid); |
| p = get_hda_cvt_setup(codec, nid); |
| if (p) { |
| /* here we just clear the active flag when do_now isn't set; |
| * actual clean-ups will be done later in |
| * purify_inactive_streams() called from snd_hda_codec_prpapre() |
| */ |
| if (do_now) |
| really_cleanup_stream(codec, p); |
| else |
| p->active = 0; |
| } |
| } |
| EXPORT_SYMBOL_HDA(__snd_hda_codec_cleanup_stream); |
| |
| static void really_cleanup_stream(struct hda_codec *codec, |
| struct hda_cvt_setup *q) |
| { |
| hda_nid_t nid = q->nid; |
| if (q->stream_tag || q->channel_id) |
| snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0); |
| if (q->format_id) |
| snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0 |
| ); |
| memset(q, 0, sizeof(*q)); |
| q->nid = nid; |
| } |
| |
| /* clean up the all conflicting obsolete streams */ |
| static void purify_inactive_streams(struct hda_codec *codec) |
| { |
| struct hda_codec *c; |
| int i; |
| |
| list_for_each_entry(c, &codec->bus->codec_list, list) { |
| for (i = 0; i < c->cvt_setups.used; i++) { |
| struct hda_cvt_setup *p; |
| p = snd_array_elem(&c->cvt_setups, i); |
| if (p->dirty) |
| really_cleanup_stream(c, p); |
| } |
| } |
| } |
| |
| #ifdef CONFIG_PM |
| /* clean up all streams; called from suspend */ |
| static void hda_cleanup_all_streams(struct hda_codec *codec) |
| { |
| int i; |
| |
| for (i = 0; i < codec->cvt_setups.used; i++) { |
| struct hda_cvt_setup *p = snd_array_elem(&codec->cvt_setups, i); |
| if (p->stream_tag) |
| really_cleanup_stream(codec, p); |
| } |
| } |
| #endif |
| |
| /* |
| * amp access functions |
| */ |
| |
| /* FIXME: more better hash key? */ |
| #define HDA_HASH_KEY(nid, dir, idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24)) |
| #define HDA_HASH_PINCAP_KEY(nid) (u32)((nid) + (0x02 << 24)) |
| #define HDA_HASH_PARPCM_KEY(nid) (u32)((nid) + (0x03 << 24)) |
| #define HDA_HASH_PARSTR_KEY(nid) (u32)((nid) + (0x04 << 24)) |
| #define INFO_AMP_CAPS (1<<0) |
| #define INFO_AMP_VOL(ch) (1 << (1 + (ch))) |
| |
| /* initialize the hash table */ |
| static void init_hda_cache(struct hda_cache_rec *cache, |
| unsigned int record_size) |
| { |
| memset(cache, 0, sizeof(*cache)); |
| memset(cache->hash, 0xff, sizeof(cache->hash)); |
| snd_array_init(&cache->buf, record_size, 64); |
| } |
| |
| static void free_hda_cache(struct hda_cache_rec *cache) |
| { |
| snd_array_free(&cache->buf); |
| } |
| |
| /* query the hash. allocate an entry if not found. */ |
| static struct hda_cache_head *get_hash(struct hda_cache_rec *cache, u32 key) |
| { |
| u16 idx = key % (u16)ARRAY_SIZE(cache->hash); |
| u16 cur = cache->hash[idx]; |
| struct hda_cache_head *info; |
| |
| while (cur != 0xffff) { |
| info = snd_array_elem(&cache->buf, cur); |
| if (info->key == key) |
| return info; |
| cur = info->next; |
| } |
| return NULL; |
| } |
| |
| /* query the hash. allocate an entry if not found. */ |
| static struct hda_cache_head *get_alloc_hash(struct hda_cache_rec *cache, |
| u32 key) |
| { |
| struct hda_cache_head *info = get_hash(cache, key); |
| if (!info) { |
| u16 idx, cur; |
| /* add a new hash entry */ |
| info = snd_array_new(&cache->buf); |
| if (!info) |
| return NULL; |
| cur = snd_array_index(&cache->buf, info); |
| info->key = key; |
| info->val = 0; |
| idx = key % (u16)ARRAY_SIZE(cache->hash); |
| info->next = cache->hash[idx]; |
| cache->hash[idx] = cur; |
| } |
| return info; |
| } |
| |
| /* query and allocate an amp hash entry */ |
| static inline struct hda_amp_info * |
| get_alloc_amp_hash(struct hda_codec *codec, u32 key) |
| { |
| return (struct hda_amp_info *)get_alloc_hash(&codec->amp_cache, key); |
| } |
| |
| /* overwrite the value with the key in the caps hash */ |
| static int write_caps_hash(struct hda_codec *codec, u32 key, unsigned int val) |
| { |
| struct hda_amp_info *info; |
| |
| mutex_lock(&codec->hash_mutex); |
| info = get_alloc_amp_hash(codec, key); |
| if (!info) { |
| mutex_unlock(&codec->hash_mutex); |
| return -EINVAL; |
| } |
| info->amp_caps = val; |
| info->head.val |= INFO_AMP_CAPS; |
| mutex_unlock(&codec->hash_mutex); |
| return 0; |
| } |
| |
| /* query the value from the caps hash; if not found, fetch the current |
| * value from the given function and store in the hash |
| */ |
| static unsigned int |
| query_caps_hash(struct hda_codec *codec, hda_nid_t nid, int dir, u32 key, |
| unsigned int (*func)(struct hda_codec *, hda_nid_t, int)) |
| { |
| struct hda_amp_info *info; |
| unsigned int val; |
| |
| mutex_lock(&codec->hash_mutex); |
| info = get_alloc_amp_hash(codec, key); |
| if (!info) { |
| mutex_unlock(&codec->hash_mutex); |
| return 0; |
| } |
| if (!(info->head.val & INFO_AMP_CAPS)) { |
| mutex_unlock(&codec->hash_mutex); /* for reentrance */ |
| val = func(codec, nid, dir); |
| write_caps_hash(codec, key, val); |
| } else { |
| val = info->amp_caps; |
| mutex_unlock(&codec->hash_mutex); |
| } |
| return val; |
| } |
| |
| static unsigned int read_amp_cap(struct hda_codec *codec, hda_nid_t nid, |
| int direction) |
| { |
| if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD)) |
| nid = codec->afg; |
| return snd_hda_param_read(codec, nid, |
| direction == HDA_OUTPUT ? |
| AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP); |
| } |
| |
| /** |
| * query_amp_caps - query AMP capabilities |
| * @codec: the HD-auio codec |
| * @nid: the NID to query |
| * @direction: either #HDA_INPUT or #HDA_OUTPUT |
| * |
| * Query AMP capabilities for the given widget and direction. |
| * Returns the obtained capability bits. |
| * |
| * When cap bits have been already read, this doesn't read again but |
| * returns the cached value. |
| */ |
| u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction) |
| { |
| return query_caps_hash(codec, nid, direction, |
| HDA_HASH_KEY(nid, direction, 0), |
| read_amp_cap); |
| } |
| EXPORT_SYMBOL_HDA(query_amp_caps); |
| |
| /** |
| * snd_hda_override_amp_caps - Override the AMP capabilities |
| * @codec: the CODEC to clean up |
| * @nid: the NID to clean up |
| * @direction: either #HDA_INPUT or #HDA_OUTPUT |
| * @caps: the capability bits to set |
| * |
| * Override the cached AMP caps bits value by the given one. |
| * This function is useful if the driver needs to adjust the AMP ranges, |
| * e.g. limit to 0dB, etc. |
| * |
| * Returns zero if successful or a negative error code. |
| */ |
| int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir, |
| unsigned int caps) |
| { |
| return write_caps_hash(codec, HDA_HASH_KEY(nid, dir, 0), caps); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_override_amp_caps); |
| |
| static unsigned int read_pin_cap(struct hda_codec *codec, hda_nid_t nid, |
| int dir) |
| { |
| return snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP); |
| } |
| |
| /** |
| * snd_hda_query_pin_caps - Query PIN capabilities |
| * @codec: the HD-auio codec |
| * @nid: the NID to query |
| * |
| * Query PIN capabilities for the given widget. |
| * Returns the obtained capability bits. |
| * |
| * When cap bits have been already read, this doesn't read again but |
| * returns the cached value. |
| */ |
| u32 snd_hda_query_pin_caps(struct hda_codec *codec, hda_nid_t nid) |
| { |
| return query_caps_hash(codec, nid, 0, HDA_HASH_PINCAP_KEY(nid), |
| read_pin_cap); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_query_pin_caps); |
| |
| /** |
| * snd_hda_override_pin_caps - Override the pin capabilities |
| * @codec: the CODEC |
| * @nid: the NID to override |
| * @caps: the capability bits to set |
| * |
| * Override the cached PIN capabilitiy bits value by the given one. |
| * |
| * Returns zero if successful or a negative error code. |
| */ |
| int snd_hda_override_pin_caps(struct hda_codec *codec, hda_nid_t nid, |
| unsigned int caps) |
| { |
| return write_caps_hash(codec, HDA_HASH_PINCAP_KEY(nid), caps); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_override_pin_caps); |
| |
| /* read or sync the hash value with the current value; |
| * call within hash_mutex |
| */ |
| static struct hda_amp_info * |
| update_amp_hash(struct hda_codec *codec, hda_nid_t nid, int ch, |
| int direction, int index) |
| { |
| struct hda_amp_info *info; |
| unsigned int parm, val = 0; |
| bool val_read = false; |
| |
| retry: |
| info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index)); |
| if (!info) |
| return NULL; |
| if (!(info->head.val & INFO_AMP_VOL(ch))) { |
| if (!val_read) { |
| mutex_unlock(&codec->hash_mutex); |
| 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); |
| val &= 0xff; |
| val_read = true; |
| mutex_lock(&codec->hash_mutex); |
| goto retry; |
| } |
| info->vol[ch] = val; |
| info->head.val |= INFO_AMP_VOL(ch); |
| } |
| return info; |
| } |
| |
| /* |
| * write the current volume in info to the h/w |
| */ |
| 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; |
| if ((val & HDA_AMP_MUTE) && !(info->amp_caps & AC_AMPCAP_MUTE) && |
| (info->amp_caps & AC_AMPCAP_MIN_MUTE)) |
| ; /* set the zero value as a fake mute */ |
| else |
| parm |= val; |
| snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm); |
| } |
| |
| /** |
| * snd_hda_codec_amp_read - Read AMP value |
| * @codec: HD-audio codec |
| * @nid: NID to read the AMP value |
| * @ch: channel (left=0 or right=1) |
| * @direction: #HDA_INPUT or #HDA_OUTPUT |
| * @index: the index value (only for input direction) |
| * |
| * Read 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; |
| unsigned int val = 0; |
| |
| mutex_lock(&codec->hash_mutex); |
| info = update_amp_hash(codec, nid, ch, direction, index); |
| if (info) |
| val = info->vol[ch]; |
| mutex_unlock(&codec->hash_mutex); |
| return val; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_amp_read); |
| |
| /** |
| * snd_hda_codec_amp_update - update the AMP value |
| * @codec: HD-audio codec |
| * @nid: NID to read the AMP value |
| * @ch: channel (left=0 or right=1) |
| * @direction: #HDA_INPUT or #HDA_OUTPUT |
| * @idx: the index value (only for input direction) |
| * @mask: bit mask to set |
| * @val: the bits value to set |
| * |
| * Update the AMP value with a bit mask. |
| * Returns 0 if the value is unchanged, 1 if changed. |
| */ |
| 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; |
| |
| if (snd_BUG_ON(mask & ~0xff)) |
| mask &= 0xff; |
| val &= mask; |
| |
| mutex_lock(&codec->hash_mutex); |
| info = update_amp_hash(codec, nid, ch, direction, idx); |
| if (!info) { |
| mutex_unlock(&codec->hash_mutex); |
| return 0; |
| } |
| val |= info->vol[ch] & ~mask; |
| if (info->vol[ch] == val) { |
| mutex_unlock(&codec->hash_mutex); |
| return 0; |
| } |
| info->vol[ch] = val; |
| mutex_unlock(&codec->hash_mutex); |
| put_vol_mute(codec, info, nid, ch, direction, idx, val); |
| return 1; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_amp_update); |
| |
| /** |
| * snd_hda_codec_amp_stereo - update the AMP stereo values |
| * @codec: HD-audio codec |
| * @nid: NID to read the AMP value |
| * @direction: #HDA_INPUT or #HDA_OUTPUT |
| * @idx: the index value (only for input direction) |
| * @mask: bit mask to set |
| * @val: the bits value to set |
| * |
| * Update the AMP values like snd_hda_codec_amp_update(), but for a |
| * stereo widget with the same mask and value. |
| */ |
| int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid, |
| int direction, int idx, int mask, int val) |
| { |
| int ch, ret = 0; |
| |
| if (snd_BUG_ON(mask & ~0xff)) |
| mask &= 0xff; |
| for (ch = 0; ch < 2; ch++) |
| ret |= snd_hda_codec_amp_update(codec, nid, ch, direction, |
| idx, mask, val); |
| return ret; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_amp_stereo); |
| |
| #ifdef CONFIG_PM |
| /** |
| * snd_hda_codec_resume_amp - Resume all AMP commands from the cache |
| * @codec: HD-audio codec |
| * |
| * Resume the all amp commands from the cache. |
| */ |
| void snd_hda_codec_resume_amp(struct hda_codec *codec) |
| { |
| struct hda_amp_info *buffer = codec->amp_cache.buf.list; |
| int i; |
| |
| for (i = 0; i < codec->amp_cache.buf.used; i++, buffer++) { |
| u32 key = buffer->head.key; |
| hda_nid_t nid; |
| unsigned int idx, dir, ch; |
| if (!key) |
| continue; |
| nid = key & 0xff; |
| idx = (key >> 16) & 0xff; |
| dir = (key >> 24) & 0xff; |
| for (ch = 0; ch < 2; ch++) { |
| if (!(buffer->head.val & INFO_AMP_VOL(ch))) |
| continue; |
| put_vol_mute(codec, buffer, nid, ch, dir, idx, |
| buffer->vol[ch]); |
| } |
| } |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_resume_amp); |
| #endif /* CONFIG_PM */ |
| |
| static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir, |
| unsigned int ofs) |
| { |
| u32 caps = query_amp_caps(codec, nid, dir); |
| /* get num steps */ |
| caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; |
| if (ofs < caps) |
| caps -= ofs; |
| return caps; |
| } |
| |
| /** |
| * snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer |
| * |
| * The control element is supposed to have the private_value field |
| * set up via HDA_COMPOSE_AMP_VAL*() or related macros. |
| */ |
| int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_info *uinfo) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| u16 nid = get_amp_nid(kcontrol); |
| u8 chs = get_amp_channels(kcontrol); |
| int dir = get_amp_direction(kcontrol); |
| unsigned int ofs = get_amp_offset(kcontrol); |
| |
| uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| uinfo->count = chs == 3 ? 2 : 1; |
| uinfo->value.integer.min = 0; |
| uinfo->value.integer.max = get_amp_max_value(codec, nid, dir, ofs); |
| if (!uinfo->value.integer.max) { |
| printk(KERN_WARNING "hda_codec: " |
| "num_steps = 0 for NID=0x%x (ctl = %s)\n", nid, |
| kcontrol->id.name); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_info); |
| |
| |
| static inline unsigned int |
| read_amp_value(struct hda_codec *codec, hda_nid_t nid, |
| int ch, int dir, int idx, unsigned int ofs) |
| { |
| unsigned int val; |
| val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx); |
| val &= HDA_AMP_VOLMASK; |
| if (val >= ofs) |
| val -= ofs; |
| else |
| val = 0; |
| return val; |
| } |
| |
| static inline int |
| update_amp_value(struct hda_codec *codec, hda_nid_t nid, |
| int ch, int dir, int idx, unsigned int ofs, |
| unsigned int val) |
| { |
| unsigned int maxval; |
| |
| if (val > 0) |
| val += ofs; |
| /* ofs = 0: raw max value */ |
| maxval = get_amp_max_value(codec, nid, dir, 0); |
| if (val > maxval) |
| val = maxval; |
| return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, |
| HDA_AMP_VOLMASK, val); |
| } |
| |
| /** |
| * snd_hda_mixer_amp_volume_get - Get callback for a standard AMP mixer volume |
| * |
| * The control element is supposed to have the private_value field |
| * set up via HDA_COMPOSE_AMP_VAL*() or related macros. |
| */ |
| int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| hda_nid_t nid = get_amp_nid(kcontrol); |
| int chs = get_amp_channels(kcontrol); |
| int dir = get_amp_direction(kcontrol); |
| int idx = get_amp_index(kcontrol); |
| unsigned int ofs = get_amp_offset(kcontrol); |
| long *valp = ucontrol->value.integer.value; |
| |
| if (chs & 1) |
| *valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs); |
| if (chs & 2) |
| *valp = read_amp_value(codec, nid, 1, dir, idx, ofs); |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_get); |
| |
| /** |
| * snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume |
| * |
| * The control element is supposed to have the private_value field |
| * set up via HDA_COMPOSE_AMP_VAL*() or related macros. |
| */ |
| int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| hda_nid_t nid = get_amp_nid(kcontrol); |
| int chs = get_amp_channels(kcontrol); |
| int dir = get_amp_direction(kcontrol); |
| int idx = get_amp_index(kcontrol); |
| unsigned int ofs = get_amp_offset(kcontrol); |
| long *valp = ucontrol->value.integer.value; |
| int change = 0; |
| |
| snd_hda_power_up(codec); |
| if (chs & 1) { |
| change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp); |
| valp++; |
| } |
| if (chs & 2) |
| change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp); |
| snd_hda_power_down(codec); |
| return change; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_put); |
| |
| /** |
| * snd_hda_mixer_amp_volume_put - TLV callback for a standard AMP mixer volume |
| * |
| * The control element is supposed to have the private_value field |
| * set up via HDA_COMPOSE_AMP_VAL*() or related macros. |
| */ |
| int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
| unsigned int size, unsigned int __user *_tlv) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| hda_nid_t nid = get_amp_nid(kcontrol); |
| int dir = get_amp_direction(kcontrol); |
| unsigned int ofs = get_amp_offset(kcontrol); |
| bool min_mute = get_amp_min_mute(kcontrol); |
| u32 caps, val1, val2; |
| |
| if (size < 4 * sizeof(unsigned int)) |
| return -ENOMEM; |
| caps = query_amp_caps(codec, nid, dir); |
| val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT; |
| val2 = (val2 + 1) * 25; |
| val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT); |
| val1 += ofs; |
| val1 = ((int)val1) * ((int)val2); |
| if (min_mute || (caps & AC_AMPCAP_MIN_MUTE)) |
| val2 |= TLV_DB_SCALE_MUTE; |
| if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv)) |
| return -EFAULT; |
| if (put_user(2 * sizeof(unsigned int), _tlv + 1)) |
| return -EFAULT; |
| if (put_user(val1, _tlv + 2)) |
| return -EFAULT; |
| if (put_user(val2, _tlv + 3)) |
| return -EFAULT; |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_tlv); |
| |
| /** |
| * snd_hda_set_vmaster_tlv - Set TLV for a virtual master control |
| * @codec: HD-audio codec |
| * @nid: NID of a reference widget |
| * @dir: #HDA_INPUT or #HDA_OUTPUT |
| * @tlv: TLV data to be stored, at least 4 elements |
| * |
| * Set (static) TLV data for a virtual master volume using the AMP caps |
| * obtained from the reference NID. |
| * The volume range is recalculated as if the max volume is 0dB. |
| */ |
| void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir, |
| unsigned int *tlv) |
| { |
| u32 caps; |
| int nums, step; |
| |
| caps = query_amp_caps(codec, nid, dir); |
| nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; |
| step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT; |
| step = (step + 1) * 25; |
| tlv[0] = SNDRV_CTL_TLVT_DB_SCALE; |
| tlv[1] = 2 * sizeof(unsigned int); |
| tlv[2] = -nums * step; |
| tlv[3] = step; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_set_vmaster_tlv); |
| |
| /* find a mixer control element with the given name */ |
| static struct snd_kcontrol * |
| find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx) |
| { |
| struct snd_ctl_elem_id id; |
| memset(&id, 0, sizeof(id)); |
| id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; |
| id.device = dev; |
| id.index = idx; |
| if (snd_BUG_ON(strlen(name) >= sizeof(id.name))) |
| return NULL; |
| strcpy(id.name, name); |
| return snd_ctl_find_id(codec->bus->card, &id); |
| } |
| |
| /** |
| * snd_hda_find_mixer_ctl - Find a mixer control element with the given name |
| * @codec: HD-audio codec |
| * @name: ctl id name string |
| * |
| * Get the control element with the given id string and IFACE_MIXER. |
| */ |
| struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec, |
| const char *name) |
| { |
| return find_mixer_ctl(codec, name, 0, 0); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_find_mixer_ctl); |
| |
| static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name, |
| int dev) |
| { |
| int idx; |
| for (idx = 0; idx < 16; idx++) { /* 16 ctlrs should be large enough */ |
| if (!find_mixer_ctl(codec, name, dev, idx)) |
| return idx; |
| } |
| return -EBUSY; |
| } |
| |
| /** |
| * snd_hda_ctl_add - Add a control element and assign to the codec |
| * @codec: HD-audio codec |
| * @nid: corresponding NID (optional) |
| * @kctl: the control element to assign |
| * |
| * Add the given control element to an array inside the codec instance. |
| * All control elements belonging to a codec are supposed to be added |
| * by this function so that a proper clean-up works at the free or |
| * reconfiguration time. |
| * |
| * If non-zero @nid is passed, the NID is assigned to the control element. |
| * The assignment is shown in the codec proc file. |
| * |
| * snd_hda_ctl_add() checks the control subdev id field whether |
| * #HDA_SUBDEV_NID_FLAG bit is set. If set (and @nid is zero), the lower |
| * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit |
| * specifies if kctl->private_value is a HDA amplifier value. |
| */ |
| int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid, |
| struct snd_kcontrol *kctl) |
| { |
| int err; |
| unsigned short flags = 0; |
| struct hda_nid_item *item; |
| |
| if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) { |
| flags |= HDA_NID_ITEM_AMP; |
| if (nid == 0) |
| nid = get_amp_nid_(kctl->private_value); |
| } |
| if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0) |
| nid = kctl->id.subdevice & 0xffff; |
| if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG)) |
| kctl->id.subdevice = 0; |
| err = snd_ctl_add(codec->bus->card, kctl); |
| if (err < 0) |
| return err; |
| item = snd_array_new(&codec->mixers); |
| if (!item) |
| return -ENOMEM; |
| item->kctl = kctl; |
| item->nid = nid; |
| item->flags = flags; |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_ctl_add); |
| |
| /** |
| * snd_hda_add_nid - Assign a NID to a control element |
| * @codec: HD-audio codec |
| * @nid: corresponding NID (optional) |
| * @kctl: the control element to assign |
| * @index: index to kctl |
| * |
| * Add the given control element to an array inside the codec instance. |
| * This function is used when #snd_hda_ctl_add cannot be used for 1:1 |
| * NID:KCTL mapping - for example "Capture Source" selector. |
| */ |
| int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl, |
| unsigned int index, hda_nid_t nid) |
| { |
| struct hda_nid_item *item; |
| |
| if (nid > 0) { |
| item = snd_array_new(&codec->nids); |
| if (!item) |
| return -ENOMEM; |
| item->kctl = kctl; |
| item->index = index; |
| item->nid = nid; |
| return 0; |
| } |
| printk(KERN_ERR "hda-codec: no NID for mapping control %s:%d:%d\n", |
| kctl->id.name, kctl->id.index, index); |
| return -EINVAL; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_add_nid); |
| |
| /** |
| * snd_hda_ctls_clear - Clear all controls assigned to the given codec |
| * @codec: HD-audio codec |
| */ |
| void snd_hda_ctls_clear(struct hda_codec *codec) |
| { |
| int i; |
| struct hda_nid_item *items = codec->mixers.list; |
| for (i = 0; i < codec->mixers.used; i++) |
| snd_ctl_remove(codec->bus->card, items[i].kctl); |
| snd_array_free(&codec->mixers); |
| snd_array_free(&codec->nids); |
| } |
| |
| /* pseudo device locking |
| * toggle card->shutdown to allow/disallow the device access (as a hack) |
| */ |
| int snd_hda_lock_devices(struct hda_bus *bus) |
| { |
| struct snd_card *card = bus->card; |
| struct hda_codec *codec; |
| |
| spin_lock(&card->files_lock); |
| if (card->shutdown) |
| goto err_unlock; |
| card->shutdown = 1; |
| if (!list_empty(&card->ctl_files)) |
| goto err_clear; |
| |
| list_for_each_entry(codec, &bus->codec_list, list) { |
| int pcm; |
| for (pcm = 0; pcm < codec->num_pcms; pcm++) { |
| struct hda_pcm *cpcm = &codec->pcm_info[pcm]; |
| if (!cpcm->pcm) |
| continue; |
| if (cpcm->pcm->streams[0].substream_opened || |
| cpcm->pcm->streams[1].substream_opened) |
| goto err_clear; |
| } |
| } |
| spin_unlock(&card->files_lock); |
| return 0; |
| |
| err_clear: |
| card->shutdown = 0; |
| err_unlock: |
| spin_unlock(&card->files_lock); |
| return -EINVAL; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_lock_devices); |
| |
| void snd_hda_unlock_devices(struct hda_bus *bus) |
| { |
| struct snd_card *card = bus->card; |
| |
| card = bus->card; |
| spin_lock(&card->files_lock); |
| card->shutdown = 0; |
| spin_unlock(&card->files_lock); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_unlock_devices); |
| |
| /** |
| * snd_hda_codec_reset - Clear all objects assigned to the codec |
| * @codec: HD-audio codec |
| * |
| * This frees the all PCM and control elements assigned to the codec, and |
| * clears the caches and restores the pin default configurations. |
| * |
| * When a device is being used, it returns -EBSY. If successfully freed, |
| * returns zero. |
| */ |
| int snd_hda_codec_reset(struct hda_codec *codec) |
| { |
| struct hda_bus *bus = codec->bus; |
| struct snd_card *card = bus->card; |
| int i; |
| |
| if (snd_hda_lock_devices(bus) < 0) |
| return -EBUSY; |
| |
| /* OK, let it free */ |
| cancel_delayed_work_sync(&codec->jackpoll_work); |
| #ifdef CONFIG_PM |
| cancel_delayed_work_sync(&codec->power_work); |
| codec->power_on = 0; |
| codec->power_transition = 0; |
| codec->power_jiffies = jiffies; |
| flush_workqueue(bus->workq); |
| #endif |
| snd_hda_ctls_clear(codec); |
| /* relase PCMs */ |
| for (i = 0; i < codec->num_pcms; i++) { |
| if (codec->pcm_info[i].pcm) { |
| snd_device_free(card, codec->pcm_info[i].pcm); |
| clear_bit(codec->pcm_info[i].device, |
| bus->pcm_dev_bits); |
| } |
| } |
| if (codec->patch_ops.free) |
| codec->patch_ops.free(codec); |
| memset(&codec->patch_ops, 0, sizeof(codec->patch_ops)); |
| snd_hda_jack_tbl_clear(codec); |
| codec->proc_widget_hook = NULL; |
| codec->spec = NULL; |
| free_hda_cache(&codec->amp_cache); |
| free_hda_cache(&codec->cmd_cache); |
| init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info)); |
| init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head)); |
| /* free only driver_pins so that init_pins + user_pins are restored */ |
| snd_array_free(&codec->driver_pins); |
| snd_array_free(&codec->cvt_setups); |
| snd_array_free(&codec->spdif_out); |
| codec->num_pcms = 0; |
| codec->pcm_info = NULL; |
| codec->preset = NULL; |
| codec->slave_dig_outs = NULL; |
| codec->spdif_status_reset = 0; |
| module_put(codec->owner); |
| codec->owner = NULL; |
| |
| /* allow device access again */ |
| snd_hda_unlock_devices(bus); |
| return 0; |
| } |
| |
| typedef int (*map_slave_func_t)(void *, struct snd_kcontrol *); |
| |
| /* apply the function to all matching slave ctls in the mixer list */ |
| static int map_slaves(struct hda_codec *codec, const char * const *slaves, |
| const char *suffix, map_slave_func_t func, void *data) |
| { |
| struct hda_nid_item *items; |
| const char * const *s; |
| int i, err; |
| |
| items = codec->mixers.list; |
| for (i = 0; i < codec->mixers.used; i++) { |
| struct snd_kcontrol *sctl = items[i].kctl; |
| if (!sctl || !sctl->id.name || |
| sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER) |
| continue; |
| for (s = slaves; *s; s++) { |
| char tmpname[sizeof(sctl->id.name)]; |
| const char *name = *s; |
| if (suffix) { |
| snprintf(tmpname, sizeof(tmpname), "%s %s", |
| name, suffix); |
| name = tmpname; |
| } |
| if (!strcmp(sctl->id.name, name)) { |
| err = func(data, sctl); |
| if (err) |
| return err; |
| break; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| static int check_slave_present(void *data, struct snd_kcontrol *sctl) |
| { |
| return 1; |
| } |
| |
| /* guess the value corresponding to 0dB */ |
| static int get_kctl_0dB_offset(struct snd_kcontrol *kctl) |
| { |
| int _tlv[4]; |
| const int *tlv = NULL; |
| int val = -1; |
| |
| if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { |
| /* FIXME: set_fs() hack for obtaining user-space TLV data */ |
| mm_segment_t fs = get_fs(); |
| set_fs(get_ds()); |
| if (!kctl->tlv.c(kctl, 0, sizeof(_tlv), _tlv)) |
| tlv = _tlv; |
| set_fs(fs); |
| } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) |
| tlv = kctl->tlv.p; |
| if (tlv && tlv[0] == SNDRV_CTL_TLVT_DB_SCALE) |
| val = -tlv[2] / tlv[3]; |
| return val; |
| } |
| |
| /* call kctl->put with the given value(s) */ |
| static int put_kctl_with_value(struct snd_kcontrol *kctl, int val) |
| { |
| struct snd_ctl_elem_value *ucontrol; |
| ucontrol = kzalloc(sizeof(*ucontrol), GFP_KERNEL); |
| if (!ucontrol) |
| return -ENOMEM; |
| ucontrol->value.integer.value[0] = val; |
| ucontrol->value.integer.value[1] = val; |
| kctl->put(kctl, ucontrol); |
| kfree(ucontrol); |
| return 0; |
| } |
| |
| /* initialize the slave volume with 0dB */ |
| static int init_slave_0dB(void *data, struct snd_kcontrol *slave) |
| { |
| int offset = get_kctl_0dB_offset(slave); |
| if (offset > 0) |
| put_kctl_with_value(slave, offset); |
| return 0; |
| } |
| |
| /* unmute the slave */ |
| static int init_slave_unmute(void *data, struct snd_kcontrol *slave) |
| { |
| return put_kctl_with_value(slave, 1); |
| } |
| |
| /** |
| * snd_hda_add_vmaster - create a virtual master control and add slaves |
| * @codec: HD-audio codec |
| * @name: vmaster control name |
| * @tlv: TLV data (optional) |
| * @slaves: slave control names (optional) |
| * @suffix: suffix string to each slave name (optional) |
| * @init_slave_vol: initialize slaves to unmute/0dB |
| * @ctl_ret: store the vmaster kcontrol in return |
| * |
| * Create a virtual master control with the given name. The TLV data |
| * must be either NULL or a valid data. |
| * |
| * @slaves is a NULL-terminated array of strings, each of which is a |
| * slave control name. All controls with these names are assigned to |
| * the new virtual master control. |
| * |
| * This function returns zero if successful or a negative error code. |
| */ |
| int __snd_hda_add_vmaster(struct hda_codec *codec, char *name, |
| unsigned int *tlv, const char * const *slaves, |
| const char *suffix, bool init_slave_vol, |
| struct snd_kcontrol **ctl_ret) |
| { |
| struct snd_kcontrol *kctl; |
| int err; |
| |
| if (ctl_ret) |
| *ctl_ret = NULL; |
| |
| err = map_slaves(codec, slaves, suffix, check_slave_present, NULL); |
| if (err != 1) { |
| snd_printdd("No slave found for %s\n", name); |
| return 0; |
| } |
| kctl = snd_ctl_make_virtual_master(name, tlv); |
| if (!kctl) |
| return -ENOMEM; |
| err = snd_hda_ctl_add(codec, 0, kctl); |
| if (err < 0) |
| return err; |
| |
| err = map_slaves(codec, slaves, suffix, |
| (map_slave_func_t)snd_ctl_add_slave, kctl); |
| if (err < 0) |
| return err; |
| |
| /* init with master mute & zero volume */ |
| put_kctl_with_value(kctl, 0); |
| if (init_slave_vol) |
| map_slaves(codec, slaves, suffix, |
| tlv ? init_slave_0dB : init_slave_unmute, kctl); |
| |
| if (ctl_ret) |
| *ctl_ret = kctl; |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(__snd_hda_add_vmaster); |
| |
| /* |
| * mute-LED control using vmaster |
| */ |
| static int vmaster_mute_mode_info(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_info *uinfo) |
| { |
| static const char * const texts[] = { |
| "On", "Off", "Follow Master" |
| }; |
| unsigned int index; |
| |
| uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
| uinfo->count = 1; |
| uinfo->value.enumerated.items = 3; |
| index = uinfo->value.enumerated.item; |
| if (index >= 3) |
| index = 2; |
| strcpy(uinfo->value.enumerated.name, texts[index]); |
| return 0; |
| } |
| |
| static int vmaster_mute_mode_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol); |
| ucontrol->value.enumerated.item[0] = hook->mute_mode; |
| return 0; |
| } |
| |
| static int vmaster_mute_mode_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol); |
| unsigned int old_mode = hook->mute_mode; |
| |
| hook->mute_mode = ucontrol->value.enumerated.item[0]; |
| if (hook->mute_mode > HDA_VMUTE_FOLLOW_MASTER) |
| hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER; |
| if (old_mode == hook->mute_mode) |
| return 0; |
| snd_hda_sync_vmaster_hook(hook); |
| return 1; |
| } |
| |
| static struct snd_kcontrol_new vmaster_mute_mode = { |
| .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| .name = "Mute-LED Mode", |
| .info = vmaster_mute_mode_info, |
| .get = vmaster_mute_mode_get, |
| .put = vmaster_mute_mode_put, |
| }; |
| |
| /* |
| * Add a mute-LED hook with the given vmaster switch kctl |
| * "Mute-LED Mode" control is automatically created and associated with |
| * the given hook. |
| */ |
| int snd_hda_add_vmaster_hook(struct hda_codec *codec, |
| struct hda_vmaster_mute_hook *hook, |
| bool expose_enum_ctl) |
| { |
| struct snd_kcontrol *kctl; |
| |
| if (!hook->hook || !hook->sw_kctl) |
| return 0; |
| snd_ctl_add_vmaster_hook(hook->sw_kctl, hook->hook, codec); |
| hook->codec = codec; |
| hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER; |
| if (!expose_enum_ctl) |
| return 0; |
| kctl = snd_ctl_new1(&vmaster_mute_mode, hook); |
| if (!kctl) |
| return -ENOMEM; |
| return snd_hda_ctl_add(codec, 0, kctl); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_add_vmaster_hook); |
| |
| /* |
| * Call the hook with the current value for synchronization |
| * Should be called in init callback |
| */ |
| void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook) |
| { |
| if (!hook->hook || !hook->codec) |
| return; |
| switch (hook->mute_mode) { |
| case HDA_VMUTE_FOLLOW_MASTER: |
| snd_ctl_sync_vmaster_hook(hook->sw_kctl); |
| break; |
| default: |
| hook->hook(hook->codec, hook->mute_mode); |
| break; |
| } |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_sync_vmaster_hook); |
| |
| |
| /** |
| * snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch |
| * |
| * The control element is supposed to have the private_value field |
| * set up via HDA_COMPOSE_AMP_VAL*() or related macros. |
| */ |
| int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_info *uinfo) |
| { |
| int chs = get_amp_channels(kcontrol); |
| |
| uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
| uinfo->count = chs == 3 ? 2 : 1; |
| uinfo->value.integer.min = 0; |
| uinfo->value.integer.max = 1; |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_info); |
| |
| /** |
| * snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch |
| * |
| * The control element is supposed to have the private_value field |
| * set up via HDA_COMPOSE_AMP_VAL*() or related macros. |
| */ |
| int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| hda_nid_t nid = get_amp_nid(kcontrol); |
| int chs = get_amp_channels(kcontrol); |
| int dir = get_amp_direction(kcontrol); |
| int idx = get_amp_index(kcontrol); |
| long *valp = ucontrol->value.integer.value; |
| |
| if (chs & 1) |
| *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & |
| HDA_AMP_MUTE) ? 0 : 1; |
| if (chs & 2) |
| *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & |
| HDA_AMP_MUTE) ? 0 : 1; |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_get); |
| |
| /** |
| * snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch |
| * |
| * The control element is supposed to have the private_value field |
| * set up via HDA_COMPOSE_AMP_VAL*() or related macros. |
| */ |
| int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| hda_nid_t nid = get_amp_nid(kcontrol); |
| int chs = get_amp_channels(kcontrol); |
| int dir = get_amp_direction(kcontrol); |
| int idx = get_amp_index(kcontrol); |
| long *valp = ucontrol->value.integer.value; |
| int change = 0; |
| |
| snd_hda_power_up(codec); |
| if (chs & 1) { |
| change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx, |
| HDA_AMP_MUTE, |
| *valp ? 0 : HDA_AMP_MUTE); |
| valp++; |
| } |
| if (chs & 2) |
| change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx, |
| HDA_AMP_MUTE, |
| *valp ? 0 : HDA_AMP_MUTE); |
| hda_call_check_power_status(codec, nid); |
| snd_hda_power_down(codec); |
| return change; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_put); |
| |
| /* |
| * bound volume controls |
| * |
| * bind multiple volumes (# indices, from 0) |
| */ |
| |
| #define AMP_VAL_IDX_SHIFT 19 |
| #define AMP_VAL_IDX_MASK (0x0f<<19) |
| |
| /** |
| * snd_hda_mixer_bind_switch_get - Get callback for a bound volume control |
| * |
| * The control element is supposed to have the private_value field |
| * set up via HDA_BIND_MUTE*() macros. |
| */ |
| int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| unsigned long pval; |
| int err; |
| |
| mutex_lock(&codec->control_mutex); |
| pval = kcontrol->private_value; |
| kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */ |
| err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol); |
| kcontrol->private_value = pval; |
| mutex_unlock(&codec->control_mutex); |
| return err; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_switch_get); |
| |
| /** |
| * snd_hda_mixer_bind_switch_put - Put callback for a bound volume control |
| * |
| * The control element is supposed to have the private_value field |
| * set up via HDA_BIND_MUTE*() macros. |
| */ |
| int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| unsigned long pval; |
| int i, indices, err = 0, change = 0; |
| |
| mutex_lock(&codec->control_mutex); |
| pval = kcontrol->private_value; |
| indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT; |
| for (i = 0; i < indices; i++) { |
| kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) | |
| (i << AMP_VAL_IDX_SHIFT); |
| err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol); |
| if (err < 0) |
| break; |
| change |= err; |
| } |
| kcontrol->private_value = pval; |
| mutex_unlock(&codec->control_mutex); |
| return err < 0 ? err : change; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_switch_put); |
| |
| /** |
| * snd_hda_mixer_bind_ctls_info - Info callback for a generic bound control |
| * |
| * The control element is supposed to have the private_value field |
| * set up via HDA_BIND_VOL() or HDA_BIND_SW() macros. |
| */ |
| int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_info *uinfo) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| struct hda_bind_ctls *c; |
| int err; |
| |
| mutex_lock(&codec->control_mutex); |
| c = (struct hda_bind_ctls *)kcontrol->private_value; |
| kcontrol->private_value = *c->values; |
| err = c->ops->info(kcontrol, uinfo); |
| kcontrol->private_value = (long)c; |
| mutex_unlock(&codec->control_mutex); |
| return err; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_info); |
| |
| /** |
| * snd_hda_mixer_bind_ctls_get - Get callback for a generic bound control |
| * |
| * The control element is supposed to have the private_value field |
| * set up via HDA_BIND_VOL() or HDA_BIND_SW() macros. |
| */ |
| int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| struct hda_bind_ctls *c; |
| int err; |
| |
| mutex_lock(&codec->control_mutex); |
| c = (struct hda_bind_ctls *)kcontrol->private_value; |
| kcontrol->private_value = *c->values; |
| err = c->ops->get(kcontrol, ucontrol); |
| kcontrol->private_value = (long)c; |
| mutex_unlock(&codec->control_mutex); |
| return err; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_get); |
| |
| /** |
| * snd_hda_mixer_bind_ctls_put - Put callback for a generic bound control |
| * |
| * The control element is supposed to have the private_value field |
| * set up via HDA_BIND_VOL() or HDA_BIND_SW() macros. |
| */ |
| int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| struct hda_bind_ctls *c; |
| unsigned long *vals; |
| int err = 0, change = 0; |
| |
| mutex_lock(&codec->control_mutex); |
| c = (struct hda_bind_ctls *)kcontrol->private_value; |
| for (vals = c->values; *vals; vals++) { |
| kcontrol->private_value = *vals; |
| err = c->ops->put(kcontrol, ucontrol); |
| if (err < 0) |
| break; |
| change |= err; |
| } |
| kcontrol->private_value = (long)c; |
| mutex_unlock(&codec->control_mutex); |
| return err < 0 ? err : change; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_put); |
| |
| /** |
| * snd_hda_mixer_bind_tlv - TLV callback for a generic bound control |
| * |
| * The control element is supposed to have the private_value field |
| * set up via HDA_BIND_VOL() macro. |
| */ |
| int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
| unsigned int size, unsigned int __user *tlv) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| struct hda_bind_ctls *c; |
| int err; |
| |
| mutex_lock(&codec->control_mutex); |
| c = (struct hda_bind_ctls *)kcontrol->private_value; |
| kcontrol->private_value = *c->values; |
| err = c->ops->tlv(kcontrol, op_flag, size, tlv); |
| kcontrol->private_value = (long)c; |
| mutex_unlock(&codec->control_mutex); |
| return err; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_tlv); |
| |
| struct hda_ctl_ops snd_hda_bind_vol = { |
| .info = snd_hda_mixer_amp_volume_info, |
| .get = snd_hda_mixer_amp_volume_get, |
| .put = snd_hda_mixer_amp_volume_put, |
| .tlv = snd_hda_mixer_amp_tlv |
| }; |
| EXPORT_SYMBOL_HDA(snd_hda_bind_vol); |
| |
| struct hda_ctl_ops snd_hda_bind_sw = { |
| .info = snd_hda_mixer_amp_switch_info, |
| .get = snd_hda_mixer_amp_switch_get, |
| .put = snd_hda_mixer_amp_switch_put, |
| .tlv = snd_hda_mixer_amp_tlv |
| }; |
| EXPORT_SYMBOL_HDA(snd_hda_bind_sw); |
| |
| /* |
| * SPDIF out controls |
| */ |
| |
| static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_info *uinfo) |
| { |
| uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; |
| uinfo->count = 1; |
| return 0; |
| } |
| |
| static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL | |
| IEC958_AES0_NONAUDIO | |
| IEC958_AES0_CON_EMPHASIS_5015 | |
| IEC958_AES0_CON_NOT_COPYRIGHT; |
| ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY | |
| IEC958_AES1_CON_ORIGINAL; |
| return 0; |
| } |
| |
| static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL | |
| IEC958_AES0_NONAUDIO | |
| IEC958_AES0_PRO_EMPHASIS_5015; |
| return 0; |
| } |
| |
| static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| int idx = kcontrol->private_value; |
| struct hda_spdif_out *spdif; |
| |
| mutex_lock(&codec->spdif_mutex); |
| spdif = snd_array_elem(&codec->spdif_out, idx); |
| ucontrol->value.iec958.status[0] = spdif->status & 0xff; |
| ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff; |
| ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff; |
| ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff; |
| mutex_unlock(&codec->spdif_mutex); |
| |
| return 0; |
| } |
| |
| /* convert from SPDIF status bits to HDA SPDIF bits |
| * bit 0 (DigEn) is always set zero (to be filled later) |
| */ |
| static unsigned short convert_from_spdif_status(unsigned int sbits) |
| { |
| unsigned short val = 0; |
| |
| if (sbits & IEC958_AES0_PROFESSIONAL) |
| val |= AC_DIG1_PROFESSIONAL; |
| if (sbits & IEC958_AES0_NONAUDIO) |
| val |= AC_DIG1_NONAUDIO; |
| if (sbits & IEC958_AES0_PROFESSIONAL) { |
| if ((sbits & IEC958_AES0_PRO_EMPHASIS) == |
| IEC958_AES0_PRO_EMPHASIS_5015) |
| val |= AC_DIG1_EMPHASIS; |
| } else { |
| if ((sbits & IEC958_AES0_CON_EMPHASIS) == |
| IEC958_AES0_CON_EMPHASIS_5015) |
| val |= AC_DIG1_EMPHASIS; |
| if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT)) |
| val |= AC_DIG1_COPYRIGHT; |
| if (sbits & (IEC958_AES1_CON_ORIGINAL << 8)) |
| val |= AC_DIG1_LEVEL; |
| val |= sbits & (IEC958_AES1_CON_CATEGORY << 8); |
| } |
| return val; |
| } |
| |
| /* convert to SPDIF status bits from HDA SPDIF bits |
| */ |
| static unsigned int convert_to_spdif_status(unsigned short val) |
| { |
| unsigned int sbits = 0; |
| |
| if (val & AC_DIG1_NONAUDIO) |
| sbits |= IEC958_AES0_NONAUDIO; |
| if (val & AC_DIG1_PROFESSIONAL) |
| sbits |= IEC958_AES0_PROFESSIONAL; |
| if (sbits & IEC958_AES0_PROFESSIONAL) { |
| if (sbits & AC_DIG1_EMPHASIS) |
| sbits |= IEC958_AES0_PRO_EMPHASIS_5015; |
| } else { |
| if (val & AC_DIG1_EMPHASIS) |
| sbits |= IEC958_AES0_CON_EMPHASIS_5015; |
| if (!(val & AC_DIG1_COPYRIGHT)) |
| sbits |= IEC958_AES0_CON_NOT_COPYRIGHT; |
| if (val & AC_DIG1_LEVEL) |
| sbits |= (IEC958_AES1_CON_ORIGINAL << 8); |
| sbits |= val & (0x7f << 8); |
| } |
| return sbits; |
| } |
| |
| /* set digital convert verbs both for the given NID and its slaves */ |
| static void set_dig_out(struct hda_codec *codec, hda_nid_t nid, |
| int verb, int val) |
| { |
| const hda_nid_t *d; |
| |
| snd_hda_codec_write_cache(codec, nid, 0, verb, val); |
| d = codec->slave_dig_outs; |
| if (!d) |
| return; |
| for (; *d; d++) |
| snd_hda_codec_write_cache(codec, *d, 0, verb, val); |
| } |
| |
| static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid, |
| int dig1, int dig2) |
| { |
| if (dig1 != -1) |
| set_dig_out(codec, nid, AC_VERB_SET_DIGI_CONVERT_1, dig1); |
| if (dig2 != -1) |
| set_dig_out(codec, nid, AC_VERB_SET_DIGI_CONVERT_2, dig2); |
| } |
| |
| static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| int idx = kcontrol->private_value; |
| struct hda_spdif_out *spdif; |
| hda_nid_t nid; |
| unsigned short val; |
| int change; |
| |
| mutex_lock(&codec->spdif_mutex); |
| spdif = snd_array_elem(&codec->spdif_out, idx); |
| nid = spdif->nid; |
| spdif->status = ucontrol->value.iec958.status[0] | |
| ((unsigned int)ucontrol->value.iec958.status[1] << 8) | |
| ((unsigned int)ucontrol->value.iec958.status[2] << 16) | |
| ((unsigned int)ucontrol->value.iec958.status[3] << 24); |
| val = convert_from_spdif_status(spdif->status); |
| val |= spdif->ctls & 1; |
| change = spdif->ctls != val; |
| spdif->ctls = val; |
| if (change && nid != (u16)-1) |
| set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff); |
| mutex_unlock(&codec->spdif_mutex); |
| return change; |
| } |
| |
| #define snd_hda_spdif_out_switch_info snd_ctl_boolean_mono_info |
| |
| static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| int idx = kcontrol->private_value; |
| struct hda_spdif_out *spdif; |
| |
| mutex_lock(&codec->spdif_mutex); |
| spdif = snd_array_elem(&codec->spdif_out, idx); |
| ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE; |
| mutex_unlock(&codec->spdif_mutex); |
| return 0; |
| } |
| |
| static inline void set_spdif_ctls(struct hda_codec *codec, hda_nid_t nid, |
| int dig1, int dig2) |
| { |
| set_dig_out_convert(codec, nid, dig1, dig2); |
| /* unmute amp switch (if any) */ |
| if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) && |
| (dig1 & AC_DIG1_ENABLE)) |
| snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0, |
| HDA_AMP_MUTE, 0); |
| } |
| |
| static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| int idx = kcontrol->private_value; |
| struct hda_spdif_out *spdif; |
| hda_nid_t nid; |
| unsigned short val; |
| int change; |
| |
| mutex_lock(&codec->spdif_mutex); |
| spdif = snd_array_elem(&codec->spdif_out, idx); |
| nid = spdif->nid; |
| val = spdif->ctls & ~AC_DIG1_ENABLE; |
| if (ucontrol->value.integer.value[0]) |
| val |= AC_DIG1_ENABLE; |
| change = spdif->ctls != val; |
| spdif->ctls = val; |
| if (change && nid != (u16)-1) |
| set_spdif_ctls(codec, nid, val & 0xff, -1); |
| mutex_unlock(&codec->spdif_mutex); |
| return change; |
| } |
| |
| static struct snd_kcontrol_new dig_mixes[] = { |
| { |
| .access = SNDRV_CTL_ELEM_ACCESS_READ, |
| .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK), |
| .info = snd_hda_spdif_mask_info, |
| .get = snd_hda_spdif_cmask_get, |
| }, |
| { |
| .access = SNDRV_CTL_ELEM_ACCESS_READ, |
| .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK), |
| .info = snd_hda_spdif_mask_info, |
| .get = snd_hda_spdif_pmask_get, |
| }, |
| { |
| .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), |
| .info = snd_hda_spdif_mask_info, |
| .get = snd_hda_spdif_default_get, |
| .put = snd_hda_spdif_default_put, |
| }, |
| { |
| .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH), |
| .info = snd_hda_spdif_out_switch_info, |
| .get = snd_hda_spdif_out_switch_get, |
| .put = snd_hda_spdif_out_switch_put, |
| }, |
| { } /* end */ |
| }; |
| |
| /** |
| * snd_hda_create_dig_out_ctls - create Output SPDIF-related controls |
| * @codec: the HDA codec |
| * @associated_nid: NID that new ctls associated with |
| * @cvt_nid: converter NID |
| * @type: HDA_PCM_TYPE_* |
| * Creates controls related with the digital output. |
| * Called from each patch supporting the digital out. |
| * |
| * Returns 0 if successful, or a negative error code. |
| */ |
| int snd_hda_create_dig_out_ctls(struct hda_codec *codec, |
| hda_nid_t associated_nid, |
| hda_nid_t cvt_nid, |
| int type) |
| { |
| int err; |
| struct snd_kcontrol *kctl; |
| struct snd_kcontrol_new *dig_mix; |
| int idx, dev = 0; |
| const int spdif_pcm_dev = 1; |
| struct hda_spdif_out *spdif; |
| |
| if (codec->primary_dig_out_type == HDA_PCM_TYPE_HDMI && |
| type == HDA_PCM_TYPE_SPDIF) { |
| dev = spdif_pcm_dev; |
| } else if (codec->primary_dig_out_type == HDA_PCM_TYPE_SPDIF && |
| type == HDA_PCM_TYPE_HDMI) { |
| for (idx = 0; idx < codec->spdif_out.used; idx++) { |
| spdif = snd_array_elem(&codec->spdif_out, idx); |
| for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) { |
| kctl = find_mixer_ctl(codec, dig_mix->name, 0, idx); |
| if (!kctl) |
| break; |
| kctl->id.device = spdif_pcm_dev; |
| } |
| } |
| codec->primary_dig_out_type = HDA_PCM_TYPE_HDMI; |
| } |
| if (!codec->primary_dig_out_type) |
| codec->primary_dig_out_type = type; |
| |
| idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", dev); |
| if (idx < 0) { |
| printk(KERN_ERR "hda_codec: too many IEC958 outputs\n"); |
| return -EBUSY; |
| } |
| spdif = snd_array_new(&codec->spdif_out); |
| for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) { |
| kctl = snd_ctl_new1(dig_mix, codec); |
| if (!kctl) |
| return -ENOMEM; |
| kctl->id.device = dev; |
| kctl->id.index = idx; |
| kctl->private_value = codec->spdif_out.used - 1; |
| err = snd_hda_ctl_add(codec, associated_nid, kctl); |
| if (err < 0) |
| return err; |
| } |
| spdif->nid = cvt_nid; |
| spdif->ctls = snd_hda_codec_read(codec, cvt_nid, 0, |
| AC_VERB_GET_DIGI_CONVERT_1, 0); |
| spdif->status = convert_to_spdif_status(spdif->ctls); |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_create_dig_out_ctls); |
| |
| /* get the hda_spdif_out entry from the given NID |
| * call within spdif_mutex lock |
| */ |
| struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec, |
| hda_nid_t nid) |
| { |
| int i; |
| for (i = 0; i < codec->spdif_out.used; i++) { |
| struct hda_spdif_out *spdif = |
| snd_array_elem(&codec->spdif_out, i); |
| if (spdif->nid == nid) |
| return spdif; |
| } |
| return NULL; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_spdif_out_of_nid); |
| |
| void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx) |
| { |
| struct hda_spdif_out *spdif; |
| |
| mutex_lock(&codec->spdif_mutex); |
| spdif = snd_array_elem(&codec->spdif_out, idx); |
| spdif->nid = (u16)-1; |
| mutex_unlock(&codec->spdif_mutex); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_spdif_ctls_unassign); |
| |
| void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid) |
| { |
| struct hda_spdif_out *spdif; |
| unsigned short val; |
| |
| mutex_lock(&codec->spdif_mutex); |
| spdif = snd_array_elem(&codec->spdif_out, idx); |
| if (spdif->nid != nid) { |
| spdif->nid = nid; |
| val = spdif->ctls; |
| set_spdif_ctls(codec, nid, val & 0xff, (val >> 8) & 0xff); |
| } |
| mutex_unlock(&codec->spdif_mutex); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_spdif_ctls_assign); |
| |
| /* |
| * SPDIF sharing with analog output |
| */ |
| static int spdif_share_sw_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol); |
| ucontrol->value.integer.value[0] = mout->share_spdif; |
| return 0; |
| } |
| |
| static int spdif_share_sw_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol); |
| mout->share_spdif = !!ucontrol->value.integer.value[0]; |
| return 0; |
| } |
| |
| static struct snd_kcontrol_new spdif_share_sw = { |
| .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| .name = "IEC958 Default PCM Playback Switch", |
| .info = snd_ctl_boolean_mono_info, |
| .get = spdif_share_sw_get, |
| .put = spdif_share_sw_put, |
| }; |
| |
| /** |
| * snd_hda_create_spdif_share_sw - create Default PCM switch |
| * @codec: the HDA codec |
| * @mout: multi-out instance |
| */ |
| int snd_hda_create_spdif_share_sw(struct hda_codec *codec, |
| struct hda_multi_out *mout) |
| { |
| if (!mout->dig_out_nid) |
| return 0; |
| /* ATTENTION: here mout is passed as private_data, instead of codec */ |
| return snd_hda_ctl_add(codec, mout->dig_out_nid, |
| snd_ctl_new1(&spdif_share_sw, mout)); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_create_spdif_share_sw); |
| |
| /* |
| * SPDIF input |
| */ |
| |
| #define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info |
| |
| static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| |
| ucontrol->value.integer.value[0] = codec->spdif_in_enable; |
| return 0; |
| } |
| |
| static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| hda_nid_t nid = kcontrol->private_value; |
| unsigned int val = !!ucontrol->value.integer.value[0]; |
| int change; |
| |
| mutex_lock(&codec->spdif_mutex); |
| change = codec->spdif_in_enable != val; |
| if (change) { |
| codec->spdif_in_enable = val; |
| snd_hda_codec_write_cache(codec, nid, 0, |
| AC_VERB_SET_DIGI_CONVERT_1, val); |
| } |
| mutex_unlock(&codec->spdif_mutex); |
| return change; |
| } |
| |
| static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| hda_nid_t nid = kcontrol->private_value; |
| unsigned short val; |
| unsigned int sbits; |
| |
| val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT_1, 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 struct snd_kcontrol_new dig_in_ctls[] = { |
| { |
| .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH), |
| .info = snd_hda_spdif_in_switch_info, |
| .get = snd_hda_spdif_in_switch_get, |
| .put = snd_hda_spdif_in_switch_put, |
| }, |
| { |
| .access = SNDRV_CTL_ELEM_ACCESS_READ, |
| .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT), |
| .info = snd_hda_spdif_mask_info, |
| .get = snd_hda_spdif_in_status_get, |
| }, |
| { } /* end */ |
| }; |
| |
| /** |
| * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls |
| * @codec: the HDA codec |
| * @nid: audio in widget NID |
| * |
| * Creates controls related with the SPDIF input. |
| * Called from each patch supporting the SPDIF in. |
| * |
| * Returns 0 if successful, or a negative error code. |
| */ |
| int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid) |
| { |
| int err; |
| struct snd_kcontrol *kctl; |
| struct snd_kcontrol_new *dig_mix; |
| int idx; |
| |
| idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0); |
| if (idx < 0) { |
| printk(KERN_ERR "hda_codec: too many IEC958 inputs\n"); |
| return -EBUSY; |
| } |
| for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) { |
| kctl = snd_ctl_new1(dig_mix, codec); |
| if (!kctl) |
| return -ENOMEM; |
| kctl->private_value = nid; |
| err = snd_hda_ctl_add(codec, nid, kctl); |
| if (err < 0) |
| return err; |
| } |
| codec->spdif_in_enable = |
| snd_hda_codec_read(codec, nid, 0, |
| AC_VERB_GET_DIGI_CONVERT_1, 0) & |
| AC_DIG1_ENABLE; |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_create_spdif_in_ctls); |
| |
| #ifdef CONFIG_PM |
| /* |
| * command cache |
| */ |
| |
| /* build a 32bit cache key with the widget id and the command parameter */ |
| #define build_cmd_cache_key(nid, verb) ((verb << 8) | nid) |
| #define get_cmd_cache_nid(key) ((key) & 0xff) |
| #define get_cmd_cache_cmd(key) (((key) >> 8) & 0xffff) |
| |
| /** |
| * snd_hda_codec_write_cache - send a single command with caching |
| * @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_cache(struct hda_codec *codec, hda_nid_t nid, |
| int direct, unsigned int verb, unsigned int parm) |
| { |
| int err = snd_hda_codec_write(codec, nid, direct, verb, parm); |
| struct hda_cache_head *c; |
| u32 key; |
| |
| if (err < 0) |
| return err; |
| /* parm may contain the verb stuff for get/set amp */ |
| verb = verb | (parm >> 8); |
| parm &= 0xff; |
| key = build_cmd_cache_key(nid, verb); |
| mutex_lock(&codec->bus->cmd_mutex); |
| c = get_alloc_hash(&codec->cmd_cache, key); |
| if (c) |
| c->val = parm; |
| mutex_unlock(&codec->bus->cmd_mutex); |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_write_cache); |
| |
| /** |
| * snd_hda_codec_update_cache - check cache and write the cmd only when needed |
| * @codec: the HDA codec |
| * @nid: NID to send the command |
| * @direct: direct flag |
| * @verb: the verb to send |
| * @parm: the parameter for the verb |
| * |
| * This function works like snd_hda_codec_write_cache(), but it doesn't send |
| * command if the parameter is already identical with the cached value. |
| * If not, it sends the command and refreshes the cache. |
| * |
| * Returns 0 if successful, or a negative error code. |
| */ |
| int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid, |
| int direct, unsigned int verb, unsigned int parm) |
| { |
| struct hda_cache_head *c; |
| u32 key; |
| |
| /* parm may contain the verb stuff for get/set amp */ |
| verb = verb | (parm >> 8); |
| parm &= 0xff; |
| key = build_cmd_cache_key(nid, verb); |
| mutex_lock(&codec->bus->cmd_mutex); |
| c = get_hash(&codec->cmd_cache, key); |
| if (c && c->val == parm) { |
| mutex_unlock(&codec->bus->cmd_mutex); |
| return 0; |
| } |
| mutex_unlock(&codec->bus->cmd_mutex); |
| return snd_hda_codec_write_cache(codec, nid, direct, verb, parm); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_update_cache); |
| |
| /** |
| * snd_hda_codec_resume_cache - Resume the all commands from the cache |
| * @codec: HD-audio codec |
| * |
| * Execute all verbs recorded in the command caches to resume. |
| */ |
| void snd_hda_codec_resume_cache(struct hda_codec *codec) |
| { |
| struct hda_cache_head *buffer = codec->cmd_cache.buf.list; |
| int i; |
| |
| for (i = 0; i < codec->cmd_cache.buf.used; i++, buffer++) { |
| u32 key = buffer->key; |
| if (!key) |
| continue; |
| snd_hda_codec_write(codec, get_cmd_cache_nid(key), 0, |
| get_cmd_cache_cmd(key), buffer->val); |
| } |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_resume_cache); |
| |
| /** |
| * snd_hda_sequence_write_cache - sequence writes with caching |
| * @codec: the HDA codec |
| * @seq: VERB array to send |
| * |
| * Send the commands sequentially from the given array. |
| * Thte commands are recorded on cache for power-save and resume. |
| * The array must be terminated with NID=0. |
| */ |
| void snd_hda_sequence_write_cache(struct hda_codec *codec, |
| const struct hda_verb *seq) |
| { |
| for (; seq->nid; seq++) |
| snd_hda_codec_write_cache(codec, seq->nid, 0, seq->verb, |
| seq->param); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_sequence_write_cache); |
| #endif /* CONFIG_PM */ |
| |
| void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg, |
| unsigned int power_state, |
| bool eapd_workaround) |
| { |
| hda_nid_t nid = codec->start_nid; |
| int i; |
| |
| for (i = 0; i < codec->num_nodes; i++, nid++) { |
| unsigned int wcaps = get_wcaps(codec, nid); |
| if (!(wcaps & AC_WCAP_POWER)) |
| continue; |
| /* don't power down the widget if it controls eapd and |
| * EAPD_BTLENABLE is set. |
| */ |
| if (eapd_workaround && power_state == AC_PWRST_D3 && |
| get_wcaps_type(wcaps) == AC_WID_PIN && |
| (snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) { |
| int eapd = snd_hda_codec_read(codec, nid, 0, |
| AC_VERB_GET_EAPD_BTLENABLE, 0); |
| if (eapd & 0x02) |
| continue; |
| } |
| snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE, |
| power_state); |
| } |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_set_power_to_all); |
| |
| /* |
| * supported power states check |
| */ |
| static bool snd_hda_codec_get_supported_ps(struct hda_codec *codec, hda_nid_t fg, |
| unsigned int power_state) |
| { |
| int sup = snd_hda_param_read(codec, fg, AC_PAR_POWER_STATE); |
| |
| if (sup == -1) |
| return false; |
| if (sup & power_state) |
| return true; |
| else |
| return false; |
| } |
| |
| /* |
| * wait until the state is reached, returns the current state |
| */ |
| static unsigned int hda_sync_power_state(struct hda_codec *codec, |
| hda_nid_t fg, |
| unsigned int power_state) |
| { |
| unsigned long end_time = jiffies + msecs_to_jiffies(500); |
| unsigned int state, actual_state; |
| |
| for (;;) { |
| state = snd_hda_codec_read(codec, fg, 0, |
| AC_VERB_GET_POWER_STATE, 0); |
| if (state & AC_PWRST_ERROR) |
| break; |
| actual_state = (state >> 4) & 0x0f; |
| if (actual_state == power_state) |
| break; |
| if (time_after_eq(jiffies, end_time)) |
| break; |
| /* wait until the codec reachs to the target state */ |
| msleep(1); |
| } |
| return state; |
| } |
| |
| /* |
| * set power state of the codec, and return the power state |
| */ |
| static unsigned int hda_set_power_state(struct hda_codec *codec, |
| unsigned int power_state) |
| { |
| hda_nid_t fg = codec->afg ? codec->afg : codec->mfg; |
| int count; |
| unsigned int state; |
| |
| /* this delay seems necessary to avoid click noise at power-down */ |
| if (power_state == AC_PWRST_D3) { |
| /* transition time less than 10ms for power down */ |
| msleep(codec->epss ? 10 : 100); |
| } |
| |
| /* repeat power states setting at most 10 times*/ |
| for (count = 0; count < 10; count++) { |
| if (codec->patch_ops.set_power_state) |
| codec->patch_ops.set_power_state(codec, fg, |
| power_state); |
| else { |
| snd_hda_codec_read(codec, fg, 0, |
| AC_VERB_SET_POWER_STATE, |
| power_state); |
| snd_hda_codec_set_power_to_all(codec, fg, power_state, |
| true); |
| } |
| state = hda_sync_power_state(codec, fg, power_state); |
| if (!(state & AC_PWRST_ERROR)) |
| break; |
| } |
| |
| return state; |
| } |
| |
| #ifdef CONFIG_SND_HDA_HWDEP |
| /* execute additional init verbs */ |
| static void hda_exec_init_verbs(struct hda_codec *codec) |
| { |
| if (codec->init_verbs.list) |
| snd_hda_sequence_write(codec, codec->init_verbs.list); |
| } |
| #else |
| static inline void hda_exec_init_verbs(struct hda_codec *codec) {} |
| #endif |
| |
| #ifdef CONFIG_PM |
| /* |
| * call suspend and power-down; used both from PM and power-save |
| * this function returns the power state in the end |
| */ |
| static unsigned int hda_call_codec_suspend(struct hda_codec *codec, bool in_wq) |
| { |
| unsigned int state; |
| |
| codec->in_pm = 1; |
| |
| if (codec->patch_ops.suspend) |
| codec->patch_ops.suspend(codec); |
| hda_cleanup_all_streams(codec); |
| state = hda_set_power_state(codec, AC_PWRST_D3); |
| /* Cancel delayed work if we aren't currently running from it. */ |
| if (!in_wq) |
| cancel_delayed_work_sync(&codec->power_work); |
| spin_lock(&codec->power_lock); |
| snd_hda_update_power_acct(codec); |
| trace_hda_power_down(codec); |
| codec->power_on = 0; |
| codec->power_transition = 0; |
| codec->power_jiffies = jiffies; |
| spin_unlock(&codec->power_lock); |
| codec->in_pm = 0; |
| return state; |
| } |
| |
| /* |
| * kick up codec; used both from PM and power-save |
| */ |
| static void hda_call_codec_resume(struct hda_codec *codec) |
| { |
| codec->in_pm = 1; |
| |
| /* set as if powered on for avoiding re-entering the resume |
| * in the resume / power-save sequence |
| */ |
| hda_keep_power_on(codec); |
| hda_set_power_state(codec, AC_PWRST_D0); |
| restore_shutup_pins(codec); |
| hda_exec_init_verbs(codec); |
| if (codec->patch_ops.resume) |
| codec->patch_ops.resume(codec); |
| else { |
| if (codec->patch_ops.init) |
| codec->patch_ops.init(codec); |
| snd_hda_codec_resume_amp(codec); |
| snd_hda_codec_resume_cache(codec); |
| } |
| |
| if (codec->jackpoll_interval) |
| hda_jackpoll_work(&codec->jackpoll_work.work); |
| else { |
| snd_hda_jack_set_dirty_all(codec); |
| snd_hda_jack_report_sync(codec); |
| } |
| |
| codec->in_pm = 0; |
| snd_hda_power_down(codec); /* flag down before returning */ |
| } |
| #endif /* CONFIG_PM */ |
| |
| |
| /** |
| * 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 hda_codec *codec; |
| |
| list_for_each_entry(codec, &bus->codec_list, list) { |
| int err = snd_hda_codec_build_controls(codec); |
| if (err < 0) { |
| printk(KERN_ERR "hda_codec: cannot build controls " |
| "for #%d (error %d)\n", codec->addr, err); |
| err = snd_hda_codec_reset(codec); |
| if (err < 0) { |
| printk(KERN_ERR |
| "hda_codec: cannot revert codec\n"); |
| return err; |
| } |
| } |
| } |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_build_controls); |
| |
| /* |
| * add standard channel maps if not specified |
| */ |
| static int add_std_chmaps(struct hda_codec *codec) |
| { |
| int i, str, err; |
| |
| for (i = 0; i < codec->num_pcms; i++) { |
| for (str = 0; str < 2; str++) { |
| struct snd_pcm *pcm = codec->pcm_info[i].pcm; |
| struct hda_pcm_stream *hinfo = |
| &codec->pcm_info[i].stream[str]; |
| struct snd_pcm_chmap *chmap; |
| const struct snd_pcm_chmap_elem *elem; |
| |
| if (codec->pcm_info[i].own_chmap) |
| continue; |
| if (!pcm || !hinfo->substreams) |
| continue; |
| elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps; |
| err = snd_pcm_add_chmap_ctls(pcm, str, elem, |
| hinfo->channels_max, |
| 0, &chmap); |
| if (err < 0) |
| return err; |
| chmap->channel_mask = SND_PCM_CHMAP_MASK_2468; |
| } |
| } |
| return 0; |
| } |
| |
| /* default channel maps for 2.1 speakers; |
| * since HD-audio supports only stereo, odd number channels are omitted |
| */ |
| const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = { |
| { .channels = 2, |
| .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, |
| { .channels = 4, |
| .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, |
| SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } }, |
| { } |
| }; |
| EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps); |
| |
| int snd_hda_codec_build_controls(struct hda_codec *codec) |
| { |
| int err = 0; |
| hda_exec_init_verbs(codec); |
| /* continue to initialize... */ |
| if (codec->patch_ops.init) |
| err = codec->patch_ops.init(codec); |
| if (!err && codec->patch_ops.build_controls) |
| err = codec->patch_ops.build_controls(codec); |
| if (err < 0) |
| return err; |
| |
| /* we create chmaps here instead of build_pcms */ |
| err = add_std_chmaps(codec); |
| if (err < 0) |
| return err; |
| |
| if (codec->jackpoll_interval) |
| hda_jackpoll_work(&codec->jackpoll_work.work); |
| else |
| snd_hda_jack_report_sync(codec); /* call at the last init point */ |
| return 0; |
| } |
| |
| /* |
| * stream formats |
| */ |
| struct hda_rate_tbl { |
| unsigned int hz; |
| unsigned int alsa_bits; |
| unsigned int hda_fmt; |
| }; |
| |
| /* rate = base * mult / div */ |
| #define HDA_RATE(base, mult, div) \ |
| (AC_FMT_BASE_##base##K | (((mult) - 1) << AC_FMT_MULT_SHIFT) | \ |
| (((div) - 1) << AC_FMT_DIV_SHIFT)) |
| |
| static struct hda_rate_tbl rate_bits[] = { |
| /* rate in Hz, ALSA rate bitmask, HDA format value */ |
| |
| /* autodetected value used in snd_hda_query_supported_pcm */ |
| { 8000, SNDRV_PCM_RATE_8000, HDA_RATE(48, 1, 6) }, |
| { 11025, SNDRV_PCM_RATE_11025, HDA_RATE(44, 1, 4) }, |
| { 16000, SNDRV_PCM_RATE_16000, HDA_RATE(48, 1, 3) }, |
| { 22050, SNDRV_PCM_RATE_22050, HDA_RATE(44, 1, 2) }, |
| { 32000, SNDRV_PCM_RATE_32000, HDA_RATE(48, 2, 3) }, |
| { 44100, SNDRV_PCM_RATE_44100, HDA_RATE(44, 1, 1) }, |
| { 48000, SNDRV_PCM_RATE_48000, HDA_RATE(48, 1, 1) }, |
| { 88200, SNDRV_PCM_RATE_88200, HDA_RATE(44, 2, 1) }, |
| { 96000, SNDRV_PCM_RATE_96000, HDA_RATE(48, 2, 1) }, |
| { 176400, SNDRV_PCM_RATE_176400, HDA_RATE(44, 4, 1) }, |
| { 192000, SNDRV_PCM_RATE_192000, HDA_RATE(48, 4, 1) }, |
| #define AC_PAR_PCM_RATE_BITS 11 |
| /* up to bits 10, 384kHZ isn't supported properly */ |
| |
| /* not autodetected value */ |
| { 9600, SNDRV_PCM_RATE_KNOT, HDA_RATE(48, 1, 5) }, |
| |
| { 0 } /* terminator */ |
| }; |
| |
| /** |
| * 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, |
| unsigned short spdif_ctls) |
| { |
| int i; |
| unsigned int val = 0; |
| |
| for (i = 0; rate_bits[i].hz; i++) |
| if (rate_bits[i].hz == rate) { |
| val = rate_bits[i].hda_fmt; |
| break; |
| } |
| if (!rate_bits[i].hz) { |
| 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 |= AC_FMT_BITS_8; |
| break; |
| case 16: |
| val |= AC_FMT_BITS_16; |
| break; |
| case 20: |
| case 24: |
| case 32: |
| if (maxbps >= 32 || format == SNDRV_PCM_FORMAT_FLOAT_LE) |
| val |= AC_FMT_BITS_32; |
| else if (maxbps >= 24) |
| val |= AC_FMT_BITS_24; |
| else |
| val |= AC_FMT_BITS_20; |
| break; |
| default: |
| snd_printdd("invalid format width %d\n", |
| snd_pcm_format_width(format)); |
| return 0; |
| } |
| |
| if (spdif_ctls & AC_DIG1_NONAUDIO) |
| val |= AC_FMT_TYPE_NON_PCM; |
| |
| return val; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_calc_stream_format); |
| |
| static unsigned int get_pcm_param(struct hda_codec *codec, hda_nid_t nid, |
| int dir) |
| { |
| unsigned int val = 0; |
| if (nid != codec->afg && |
| (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) |
| val = snd_hda_param_read(codec, nid, AC_PAR_PCM); |
| if (!val || val == -1) |
| val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM); |
| if (!val || val == -1) |
| return 0; |
| return val; |
| } |
| |
| static unsigned int query_pcm_param(struct hda_codec *codec, hda_nid_t nid) |
| { |
| return query_caps_hash(codec, nid, 0, HDA_HASH_PARPCM_KEY(nid), |
| get_pcm_param); |
| } |
| |
| static unsigned int get_stream_param(struct hda_codec *codec, hda_nid_t nid, |
| int dir) |
| { |
| unsigned int streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM); |
| if (!streams || streams == -1) |
| streams = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM); |
| if (!streams || streams == -1) |
| return 0; |
| return streams; |
| } |
| |
| static unsigned int query_stream_param(struct hda_codec *codec, hda_nid_t nid) |
| { |
| return query_caps_hash(codec, nid, 0, HDA_HASH_PARSTR_KEY(nid), |
| get_stream_param); |
| } |
| |
| /** |
| * 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) |
| { |
| unsigned int i, val, wcaps; |
| |
| wcaps = get_wcaps(codec, nid); |
| val = query_pcm_param(codec, nid); |
| |
| if (ratesp) { |
| u32 rates = 0; |
| for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++) { |
| if (val & (1 << i)) |
| rates |= rate_bits[i].alsa_bits; |
| } |
| if (rates == 0) { |
| snd_printk(KERN_ERR "hda_codec: rates == 0 " |
| "(nid=0x%x, val=0x%x, ovrd=%i)\n", |
| nid, val, |
| (wcaps & AC_WCAP_FORMAT_OVRD) ? 1 : 0); |
| return -EIO; |
| } |
| *ratesp = rates; |
| } |
| |
| if (formatsp || bpsp) { |
| u64 formats = 0; |
| unsigned int streams, bps; |
| |
| streams = query_stream_param(codec, nid); |
| if (!streams) |
| 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_24) |
| bps = 24; |
| else if (val & AC_SUPPCM_BITS_20) |
| bps = 20; |
| } |
| } |
| #if 0 /* FIXME: CS4206 doesn't work, which is the only codec supporting float */ |
| if (streams & AC_SUPFMT_FLOAT32) { |
| formats |= SNDRV_PCM_FMTBIT_FLOAT_LE; |
| if (!bps) |
| bps = 32; |
| } |
| #endif |
| 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 (formats == 0) { |
| snd_printk(KERN_ERR "hda_codec: formats == 0 " |
| "(nid=0x%x, val=0x%x, ovrd=%i, " |
| "streams=0x%x)\n", |
| nid, val, |
| (wcaps & AC_WCAP_FORMAT_OVRD) ? 1 : 0, |
| streams); |
| return -EIO; |
| } |
| if (formatsp) |
| *formatsp = formats; |
| if (bpsp) |
| *bpsp = bps; |
| } |
| |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_query_supported_pcm); |
| |
| /** |
| * snd_hda_is_supported_format - Check the validity of the format |
| * @codec: HD-audio codec |
| * @nid: NID to check |
| * @format: the HD-audio format value to check |
| * |
| * Check whether the given node supports the format value. |
| * |
| * 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; |
| |
| val = query_pcm_param(codec, nid); |
| if (!val) |
| return 0; |
| |
| rate = format & 0xff00; |
| for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++) |
| if (rate_bits[i].hda_fmt == rate) { |
| if (val & (1 << i)) |
| break; |
| return 0; |
| } |
| if (i >= AC_PAR_PCM_RATE_BITS) |
| return 0; |
| |
| stream = query_stream_param(codec, nid); |
| if (!stream) |
| 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; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_is_supported_format); |
| |
| /* |
| * PCM stuff |
| */ |
| static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo, |
| struct hda_codec *codec, |
| struct snd_pcm_substream *substream) |
| { |
| return 0; |
| } |
| |
| static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo, |
| struct hda_codec *codec, |
| unsigned int stream_tag, |
| unsigned int format, |
| struct snd_pcm_substream *substream) |
| { |
| snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format); |
| return 0; |
| } |
| |
| static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo, |
| struct hda_codec *codec, |
| struct snd_pcm_substream *substream) |
| { |
| snd_hda_codec_cleanup_stream(codec, hinfo->nid); |
| return 0; |
| } |
| |
| static int set_pcm_default_values(struct hda_codec *codec, |
| struct hda_pcm_stream *info) |
| { |
| int err; |
| |
| /* query support PCM information from the given NID */ |
| if (info->nid && (!info->rates || !info->formats)) { |
| err = snd_hda_query_supported_pcm(codec, info->nid, |
| info->rates ? NULL : &info->rates, |
| info->formats ? NULL : &info->formats, |
| info->maxbps ? NULL : &info->maxbps); |
| if (err < 0) |
| return err; |
| } |
| if (info->ops.open == NULL) |
| info->ops.open = hda_pcm_default_open_close; |
| if (info->ops.close == NULL) |
| info->ops.close = hda_pcm_default_open_close; |
| if (info->ops.prepare == NULL) { |
| if (snd_BUG_ON(!info->nid)) |
| return -EINVAL; |
| info->ops.prepare = hda_pcm_default_prepare; |
| } |
| if (info->ops.cleanup == NULL) { |
| if (snd_BUG_ON(!info->nid)) |
| return -EINVAL; |
| info->ops.cleanup = hda_pcm_default_cleanup; |
| } |
| return 0; |
| } |
| |
| /* |
| * codec prepare/cleanup entries |
| */ |
| int snd_hda_codec_prepare(struct hda_codec *codec, |
| struct hda_pcm_stream *hinfo, |
| unsigned int stream, |
| unsigned int format, |
| struct snd_pcm_substream *substream) |
| { |
| int ret; |
| mutex_lock(&codec->bus->prepare_mutex); |
| ret = hinfo->ops.prepare(hinfo, codec, stream, format, substream); |
| if (ret >= 0) |
| purify_inactive_streams(codec); |
| mutex_unlock(&codec->bus->prepare_mutex); |
| return ret; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_prepare); |
| |
| void snd_hda_codec_cleanup(struct hda_codec *codec, |
| struct hda_pcm_stream *hinfo, |
| struct snd_pcm_substream *substream) |
| { |
| mutex_lock(&codec->bus->prepare_mutex); |
| hinfo->ops.cleanup(hinfo, codec, substream); |
| mutex_unlock(&codec->bus->prepare_mutex); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_codec_cleanup); |
| |
| /* global */ |
| const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = { |
| "Audio", "SPDIF", "HDMI", "Modem" |
| }; |
| |
| /* |
| * get the empty PCM device number to assign |
| * |
| * note the max device number is limited by HDA_MAX_PCMS, currently 10 |
| */ |
| static int get_empty_pcm_device(struct hda_bus *bus, int type) |
| { |
| /* audio device indices; not linear to keep compatibility */ |
| static int audio_idx[HDA_PCM_NTYPES][5] = { |
| [HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 }, |
| [HDA_PCM_TYPE_SPDIF] = { 1, -1 }, |
| [HDA_PCM_TYPE_HDMI] = { 3, 7, 8, 9, -1 }, |
| [HDA_PCM_TYPE_MODEM] = { 6, -1 }, |
| }; |
| int i; |
| |
| if (type >= HDA_PCM_NTYPES) { |
| snd_printk(KERN_WARNING "Invalid PCM type %d\n", type); |
| return -EINVAL; |
| } |
| |
| for (i = 0; audio_idx[type][i] >= 0 ; i++) |
| if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits)) |
| return audio_idx[type][i]; |
| |
| /* non-fixed slots starting from 10 */ |
| for (i = 10; i < 32; i++) { |
| if (!test_and_set_bit(i, bus->pcm_dev_bits)) |
| return i; |
| } |
| |
| snd_printk(KERN_WARNING "Too many %s devices\n", |
| snd_hda_pcm_type_name[type]); |
| return -EAGAIN; |
| } |
| |
| /* |
| * attach a new PCM stream |
| */ |
| static int snd_hda_attach_pcm(struct hda_codec *codec, struct hda_pcm *pcm) |
| { |
| struct hda_bus *bus = codec->bus; |
| struct hda_pcm_stream *info; |
| int stream, err; |
| |
| if (snd_BUG_ON(!pcm->name)) |
| return -EINVAL; |
| for (stream = 0; stream < 2; stream++) { |
| info = &pcm->stream[stream]; |
| if (info->substreams) { |
| err = set_pcm_default_values(codec, info); |
| if (err < 0) |
| return err; |
| } |
| } |
| return bus->ops.attach_pcm(bus, codec, pcm); |
| } |
| |
| /* assign all PCMs of the given codec */ |
| int snd_hda_codec_build_pcms(struct hda_codec *codec) |
| { |
| unsigned int pcm; |
| int err; |
| |
| if (!codec->num_pcms) { |
| if (!codec->patch_ops.build_pcms) |
| return 0; |
| err = codec->patch_ops.build_pcms(codec); |
| if (err < 0) { |
| printk(KERN_ERR "hda_codec: cannot build PCMs" |
| "for #%d (error %d)\n", codec->addr, err); |
| err = snd_hda_codec_reset(codec); |
| if (err < 0) { |
| printk(KERN_ERR |
| "hda_codec: cannot revert codec\n"); |
| return err; |
| } |
| } |
| } |
| for (pcm = 0; pcm < codec->num_pcms; pcm++) { |
| struct hda_pcm *cpcm = &codec->pcm_info[pcm]; |
| int dev; |
| |
| if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams) |
| continue; /* no substreams assigned */ |
| |
| if (!cpcm->pcm) { |
| dev = get_empty_pcm_device(codec->bus, cpcm->pcm_type); |
| if (dev < 0) |
| continue; /* no fatal error */ |
| cpcm->device = dev; |
| err = snd_hda_attach_pcm(codec, cpcm); |
| if (err < 0) { |
| printk(KERN_ERR "hda_codec: cannot attach " |
| "PCM stream %d for codec #%d\n", |
| dev, codec->addr); |
| continue; /* no fatal error */ |
| } |
| } |
| } |
| 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 successful, or a negative error code. |
| */ |
| int snd_hda_build_pcms(struct hda_bus *bus) |
| { |
| struct hda_codec *codec; |
| |
| list_for_each_entry(codec, &bus->codec_list, list) { |
| int err = snd_hda_codec_build_pcms(codec); |
| if (err < 0) |
| return err; |
| } |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_build_pcms); |
| |
| /** |
| * snd_hda_check_board_config - compare the current codec with the config table |
| * @codec: the HDA codec |
| * @num_configs: number of config enums |
| * @models: array of model name strings |
| * @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, |
| int num_configs, const char * const *models, |
| const struct snd_pci_quirk *tbl) |
| { |
| if (codec->modelname && models) { |
| int i; |
| for (i = 0; i < num_configs; i++) { |
| if (models[i] && |
| !strcmp(codec->modelname, models[i])) { |
| snd_printd(KERN_INFO "hda_codec: model '%s' is " |
| "selected\n", models[i]); |
| return i; |
| } |
| } |
| } |
| |
| if (!codec->bus->pci || !tbl) |
| return -1; |
| |
| tbl = snd_pci_quirk_lookup(codec->bus->pci, tbl); |
| if (!tbl) |
| return -1; |
| if (tbl->value >= 0 && tbl->value < num_configs) { |
| #ifdef CONFIG_SND_DEBUG_VERBOSE |
| char tmp[10]; |
| const char *model = NULL; |
| if (models) |
| model = models[tbl->value]; |
| if (!model) { |
| sprintf(tmp, "#%d", tbl->value); |
| model = tmp; |
| } |
| snd_printdd(KERN_INFO "hda_codec: model '%s' is selected " |
| "for config %x:%x (%s)\n", |
| model, tbl->subvendor, tbl->subdevice, |
| (tbl->name ? tbl->name : "Unknown device")); |
| #endif |
| return tbl->value; |
| } |
| return -1; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_check_board_config); |
| |
| /** |
| * snd_hda_check_board_codec_sid_config - compare the current codec |
| subsystem ID with the |
| config table |
| |
| This is important for Gateway notebooks with SB450 HDA Audio |
| where the vendor ID of the PCI device is: |
| ATI Technologies Inc SB450 HDA Audio [1002:437b] |
| and the vendor/subvendor are found only at the codec. |
| |
| * @codec: the HDA codec |
| * @num_configs: number of config enums |
| * @models: array of model name strings |
| * @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_codec_sid_config(struct hda_codec *codec, |
| int num_configs, const char * const *models, |
| const struct snd_pci_quirk *tbl) |
| { |
| const struct snd_pci_quirk *q; |
| |
| /* Search for codec ID */ |
| for (q = tbl; q->subvendor; q++) { |
| unsigned int mask = 0xffff0000 | q->subdevice_mask; |
| unsigned int id = (q->subdevice | (q->subvendor << 16)) & mask; |
| if ((codec->subsystem_id & mask) == id) |
| break; |
| } |
| |
| if (!q->subvendor) |
| return -1; |
| |
| tbl = q; |
| |
| if (tbl->value >= 0 && tbl->value < num_configs) { |
| #ifdef CONFIG_SND_DEBUG_VERBOSE |
| char tmp[10]; |
| const char *model = NULL; |
| if (models) |
| model = models[tbl->value]; |
| if (!model) { |
| sprintf(tmp, "#%d", tbl->value); |
| model = tmp; |
| } |
| snd_printdd(KERN_INFO "hda_codec: model '%s' is selected " |
| "for config %x:%x (%s)\n", |
| model, tbl->subvendor, tbl->subdevice, |
| (tbl->name ? tbl->name : "Unknown device")); |
| #endif |
| return tbl->value; |
| } |
| return -1; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_check_board_codec_sid_config); |
| |
| /** |
| * snd_hda_add_new_ctls - create controls from the array |
| * @codec: the HDA codec |
| * @knew: the array of struct snd_kcontrol_new |
| * |
| * This helper function creates and add new controls in the given array. |
| * The array must be terminated with an empty entry as terminator. |
| * |
| * Returns 0 if successful, or a negative error code. |
| */ |
| int snd_hda_add_new_ctls(struct hda_codec *codec, |
| const struct snd_kcontrol_new *knew) |
| { |
| int err; |
| |
| for (; knew->name; knew++) { |
| struct snd_kcontrol *kctl; |
| int addr = 0, idx = 0; |
| if (knew->iface == -1) /* skip this codec private value */ |
| continue; |
| for (;;) { |
| kctl = snd_ctl_new1(knew, codec); |
| if (!kctl) |
| return -ENOMEM; |
| if (addr > 0) |
| kctl->id.device = addr; |
| if (idx > 0) |
| kctl->id.index = idx; |
| err = snd_hda_ctl_add(codec, 0, kctl); |
| if (!err) |
| break; |
| /* try first with another device index corresponding to |
| * the codec addr; if it still fails (or it's the |
| * primary codec), then try another control index |
| */ |
| if (!addr && codec->addr) |
| addr = codec->addr; |
| else if (!idx && !knew->index) { |
| idx = find_empty_mixer_ctl_idx(codec, |
| knew->name, 0); |
| if (idx <= 0) |
| return err; |
| } else |
| return err; |
| } |
| } |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_add_new_ctls); |
| |
| #ifdef CONFIG_PM |
| static void hda_power_work(struct work_struct *work) |
| { |
| struct hda_codec *codec = |
| container_of(work, struct hda_codec, power_work.work); |
| struct hda_bus *bus = codec->bus; |
| unsigned int state; |
| |
| spin_lock(&codec->power_lock); |
| if (codec->power_transition > 0) { /* during power-up sequence? */ |
| spin_unlock(&codec->power_lock); |
| return; |
| } |
| if (!codec->power_on || codec->power_count) { |
| codec->power_transition = 0; |
| spin_unlock(&codec->power_lock); |
| return; |
| } |
| spin_unlock(&codec->power_lock); |
| |
| state = hda_call_codec_suspend(codec, true); |
| codec->pm_down_notified = 0; |
| if (!bus->power_keep_link_on && (state & AC_PWRST_CLK_STOP_OK)) { |
| codec->pm_down_notified = 1; |
| hda_call_pm_notify(bus, false); |
| } |
| } |
| |
| static void hda_keep_power_on(struct hda_codec *codec) |
| { |
| spin_lock(&codec->power_lock); |
| codec->power_count++; |
| codec->power_on = 1; |
| codec->power_jiffies = jiffies; |
| spin_unlock(&codec->power_lock); |
| } |
| |
| /* update the power on/off account with the current jiffies */ |
| void snd_hda_update_power_acct(struct hda_codec *codec) |
| { |
| unsigned long delta = jiffies - codec->power_jiffies; |
| if (codec->power_on) |
| codec->power_on_acct += delta; |
| else |
| codec->power_off_acct += delta; |
| codec->power_jiffies += delta; |
| } |
| |
| /* Transition to powered up, if wait_power_down then wait for a pending |
| * transition to D3 to complete. A pending D3 transition is indicated |
| * with power_transition == -1. */ |
| /* call this with codec->power_lock held! */ |
| static void __snd_hda_power_up(struct hda_codec *codec, bool wait_power_down) |
| { |
| struct hda_bus *bus = codec->bus; |
| |
| /* Return if power_on or transitioning to power_on, unless currently |
| * powering down. */ |
| if ((codec->power_on || codec->power_transition > 0) && |
| !(wait_power_down && codec->power_transition < 0)) |
| return; |
| spin_unlock(&codec->power_lock); |
| |
| cancel_delayed_work_sync(&codec->power_work); |
| |
| spin_lock(&codec->power_lock); |
| /* If the power down delayed work was cancelled above before starting, |
| * then there is no need to go through power up here. |
| */ |
| if (codec->power_on) { |
| if (codec->power_transition < 0) |
| codec->power_transition = 0; |
| return; |
| } |
| |
| trace_hda_power_up(codec); |
| snd_hda_update_power_acct(codec); |
| codec->power_on = 1; |
| codec->power_jiffies = jiffies; |
| codec->power_transition = 1; /* avoid reentrance */ |
| spin_unlock(&codec->power_lock); |
| |
| if (codec->pm_down_notified) { |
| codec->pm_down_notified = 0; |
| hda_call_pm_notify(bus, true); |
| } |
| |
| hda_call_codec_resume(codec); |
| |
| spin_lock(&codec->power_lock); |
| codec->power_transition = 0; |
| } |
| |
| #define power_save(codec) \ |
| ((codec)->bus->power_save ? *(codec)->bus->power_save : 0) |
| |
| /* Transition to powered down */ |
| static void __snd_hda_power_down(struct hda_codec *codec) |
| { |
| if (!codec->power_on || codec->power_count || codec->power_transition) |
| return; |
| |
| if (power_save(codec)) { |
| codec->power_transition = -1; /* avoid reentrance */ |
| queue_delayed_work(codec->bus->workq, &codec->power_work, |
| msecs_to_jiffies(power_save(codec) * 1000)); |
| } |
| } |
| |
| /** |
| * snd_hda_power_save - Power-up/down/sync the codec |
| * @codec: HD-audio codec |
| * @delta: the counter delta to change |
| * |
| * Change the power-up counter via @delta, and power up or down the hardware |
| * appropriately. For the power-down, queue to the delayed action. |
| * Passing zero to @delta means to synchronize the power state. |
| */ |
| void snd_hda_power_save(struct hda_codec *codec, int delta, bool d3wait) |
| { |
| spin_lock(&codec->power_lock); |
| codec->power_count += delta; |
| trace_hda_power_count(codec); |
| if (delta > 0) |
| __snd_hda_power_up(codec, d3wait); |
| else |
| __snd_hda_power_down(codec); |
| spin_unlock(&codec->power_lock); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_power_save); |
| |
| /** |
| * snd_hda_check_amp_list_power - Check the amp list and update the power |
| * @codec: HD-audio codec |
| * @check: the object containing an AMP list and the status |
| * @nid: NID to check / update |
| * |
| * Check whether the given NID is in the amp list. If it's in the list, |
| * check the current AMP status, and update the the power-status according |
| * to the mute status. |
| * |
| * This function is supposed to be set or called from the check_power_status |
| * patch ops. |
| */ |
| int snd_hda_check_amp_list_power(struct hda_codec *codec, |
| struct hda_loopback_check *check, |
| hda_nid_t nid) |
| { |
| const struct hda_amp_list *p; |
| int ch, v; |
| |
| if (!check->amplist) |
| return 0; |
| for (p = check->amplist; p->nid; p++) { |
| if (p->nid == nid) |
| break; |
| } |
| if (!p->nid) |
| return 0; /* nothing changed */ |
| |
| for (p = check->amplist; p->nid; p++) { |
| for (ch = 0; ch < 2; ch++) { |
| v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir, |
| p->idx); |
| if (!(v & HDA_AMP_MUTE) && v > 0) { |
| if (!check->power_on) { |
| check->power_on = 1; |
| snd_hda_power_up(codec); |
| } |
| return 1; |
| } |
| } |
| } |
| if (check->power_on) { |
| check->power_on = 0; |
| snd_hda_power_down(codec); |
| } |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_check_amp_list_power); |
| #endif |
| |
| /* |
| * Channel mode helper |
| */ |
| |
| /** |
| * snd_hda_ch_mode_info - Info callback helper for the channel mode enum |
| */ |
| int snd_hda_ch_mode_info(struct hda_codec *codec, |
| struct snd_ctl_elem_info *uinfo, |
| const struct hda_channel_mode *chmode, |
| int num_chmodes) |
| { |
| uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
| uinfo->count = 1; |
| uinfo->value.enumerated.items = num_chmodes; |
| if (uinfo->value.enumerated.item >= num_chmodes) |
| uinfo->value.enumerated.item = num_chmodes - 1; |
| sprintf(uinfo->value.enumerated.name, "%dch", |
| chmode[uinfo->value.enumerated.item].channels); |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_ch_mode_info); |
| |
| /** |
| * snd_hda_ch_mode_get - Get callback helper for the channel mode enum |
| */ |
| int snd_hda_ch_mode_get(struct hda_codec *codec, |
| struct snd_ctl_elem_value *ucontrol, |
| const struct hda_channel_mode *chmode, |
| int num_chmodes, |
| int max_channels) |
| { |
| int i; |
| |
| for (i = 0; i < num_chmodes; i++) { |
| if (max_channels == chmode[i].channels) { |
| ucontrol->value.enumerated.item[0] = i; |
| break; |
| } |
| } |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_ch_mode_get); |
| |
| /** |
| * snd_hda_ch_mode_put - Put callback helper for the channel mode enum |
| */ |
| int snd_hda_ch_mode_put(struct hda_codec *codec, |
| struct snd_ctl_elem_value *ucontrol, |
| const struct hda_channel_mode *chmode, |
| int num_chmodes, |
| int *max_channelsp) |
| { |
| unsigned int mode; |
| |
| mode = ucontrol->value.enumerated.item[0]; |
| if (mode >= num_chmodes) |
| return -EINVAL; |
| if (*max_channelsp == chmode[mode].channels) |
| return 0; |
| /* change the current channel setting */ |
| *max_channelsp = chmode[mode].channels; |
| if (chmode[mode].sequence) |
| snd_hda_sequence_write_cache(codec, chmode[mode].sequence); |
| return 1; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_ch_mode_put); |
| |
| /* |
| * input MUX helper |
| */ |
| |
| /** |
| * snd_hda_input_mux_info_info - Info callback helper for the input-mux enum |
| */ |
| int snd_hda_input_mux_info(const struct hda_input_mux *imux, |
| struct snd_ctl_elem_info *uinfo) |
| { |
| unsigned int index; |
| |
| uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
| uinfo->count = 1; |
| uinfo->value.enumerated.items = imux->num_items; |
| if (!imux->num_items) |
| return 0; |
| index = uinfo->value.enumerated.item; |
| if (index >= imux->num_items) |
| index = imux->num_items - 1; |
| strcpy(uinfo->value.enumerated.name, imux->items[index].label); |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_input_mux_info); |
| |
| /** |
| * snd_hda_input_mux_info_put - Put callback helper for the input-mux enum |
| */ |
| int snd_hda_input_mux_put(struct hda_codec *codec, |
| const struct hda_input_mux *imux, |
| struct snd_ctl_elem_value *ucontrol, |
| hda_nid_t nid, |
| unsigned int *cur_val) |
| { |
| unsigned int idx; |
| |
| if (!imux->num_items) |
| return 0; |
| idx = ucontrol->value.enumerated.item[0]; |
| if (idx >= imux->num_items) |
| idx = imux->num_items - 1; |
| if (*cur_val == idx) |
| return 0; |
| snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL, |
| imux->items[idx].index); |
| *cur_val = idx; |
| return 1; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_input_mux_put); |
| |
| |
| /* |
| * process kcontrol info callback of a simple string enum array |
| * when @num_items is 0 or @texts is NULL, assume a boolean enum array |
| */ |
| int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_info *uinfo, |
| int num_items, const char * const *texts) |
| { |
| static const char * const texts_default[] = { |
| "Disabled", "Enabled" |
| }; |
| |
| if (!texts || !num_items) { |
| num_items = 2; |
| texts = texts_default; |
| } |
| |
| uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
| uinfo->count = 1; |
| uinfo->value.enumerated.items = num_items; |
| if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) |
| uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1; |
| strcpy(uinfo->value.enumerated.name, |
| texts[uinfo->value.enumerated.item]); |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_enum_helper_info); |
| |
| /* |
| * Multi-channel / digital-out PCM helper functions |
| */ |
| |
| /* setup SPDIF output stream */ |
| static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid, |
| unsigned int stream_tag, unsigned int format) |
| { |
| struct hda_spdif_out *spdif; |
| unsigned int curr_fmt; |
| bool reset; |
| |
| spdif = snd_hda_spdif_out_of_nid(codec, nid); |
| curr_fmt = snd_hda_codec_read(codec, nid, 0, |
| AC_VERB_GET_STREAM_FORMAT, 0); |
| reset = codec->spdif_status_reset && |
| (spdif->ctls & AC_DIG1_ENABLE) && |
| curr_fmt != format; |
| |
| /* turn off SPDIF if needed; otherwise the IEC958 bits won't be |
| updated */ |
| if (reset) |
| set_dig_out_convert(codec, nid, |
| spdif->ctls & ~AC_DIG1_ENABLE & 0xff, |
| -1); |
| snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format); |
| if (codec->slave_dig_outs) { |
| const hda_nid_t *d; |
| for (d = codec->slave_dig_outs; *d; d++) |
| snd_hda_codec_setup_stream(codec, *d, stream_tag, 0, |
| format); |
| } |
| /* turn on again (if needed) */ |
| if (reset) |
| set_dig_out_convert(codec, nid, |
| spdif->ctls & 0xff, -1); |
| } |
| |
| static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid) |
| { |
| snd_hda_codec_cleanup_stream(codec, nid); |
| if (codec->slave_dig_outs) { |
| const hda_nid_t *d; |
| for (d = codec->slave_dig_outs; *d; d++) |
| snd_hda_codec_cleanup_stream(codec, *d); |
| } |
| } |
| |
| /** |
| * snd_hda_bus_reboot_notify - call the reboot notifier of each codec |
| * @bus: HD-audio bus |
| */ |
| void snd_hda_bus_reboot_notify(struct hda_bus *bus) |
| { |
| struct hda_codec *codec; |
| |
| if (!bus) |
| return; |
| list_for_each_entry(codec, &bus->codec_list, list) { |
| if (hda_codec_is_power_on(codec) && |
| codec->patch_ops.reboot_notify) |
| codec->patch_ops.reboot_notify(codec); |
| } |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_bus_reboot_notify); |
| |
| /** |
| * snd_hda_multi_out_dig_open - open the digital out in the exclusive mode |
| */ |
| int snd_hda_multi_out_dig_open(struct hda_codec *codec, |
| struct hda_multi_out *mout) |
| { |
| mutex_lock(&codec->spdif_mutex); |
| if (mout->dig_out_used == HDA_DIG_ANALOG_DUP) |
| /* already opened as analog dup; reset it once */ |
| cleanup_dig_out_stream(codec, mout->dig_out_nid); |
| mout->dig_out_used = HDA_DIG_EXCLUSIVE; |
| mutex_unlock(&codec->spdif_mutex); |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_open); |
| |
| /** |
| * snd_hda_multi_out_dig_prepare - prepare the digital out stream |
| */ |
| int snd_hda_multi_out_dig_prepare(struct hda_codec *codec, |
| struct hda_multi_out *mout, |
| unsigned int stream_tag, |
| unsigned int format, |
| struct snd_pcm_substream *substream) |
| { |
| mutex_lock(&codec->spdif_mutex); |
| setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format); |
| mutex_unlock(&codec->spdif_mutex); |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_prepare); |
| |
| /** |
| * snd_hda_multi_out_dig_cleanup - clean-up the digital out stream |
| */ |
| int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec, |
| struct hda_multi_out *mout) |
| { |
| mutex_lock(&codec->spdif_mutex); |
| cleanup_dig_out_stream(codec, mout->dig_out_nid); |
| mutex_unlock(&codec->spdif_mutex); |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_cleanup); |
| |
| /** |
| * snd_hda_multi_out_dig_close - release the digital out stream |
| */ |
| int snd_hda_multi_out_dig_close(struct hda_codec *codec, |
| struct hda_multi_out *mout) |
| { |
| mutex_lock(&codec->spdif_mutex); |
| mout->dig_out_used = 0; |
| mutex_unlock(&codec->spdif_mutex); |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_close); |
| |
| /** |
| * snd_hda_multi_out_analog_open - open analog outputs |
| * |
| * Open analog outputs and set up the hw-constraints. |
| * If the digital outputs can be opened as slave, open the digital |
| * outputs, too. |
| */ |
| int snd_hda_multi_out_analog_open(struct hda_codec *codec, |
| struct hda_multi_out *mout, |
| struct snd_pcm_substream *substream, |
| struct hda_pcm_stream *hinfo) |
| { |
| struct snd_pcm_runtime *runtime = substream->runtime; |
| runtime->hw.channels_max = mout->max_channels; |
| if (mout->dig_out_nid) { |
| if (!mout->analog_rates) { |
| mout->analog_rates = hinfo->rates; |
| mout->analog_formats = hinfo->formats; |
| mout->analog_maxbps = hinfo->maxbps; |
| } else { |
| runtime->hw.rates = mout->analog_rates; |
| runtime->hw.formats = mout->analog_formats; |
| hinfo->maxbps = mout->analog_maxbps; |
| } |
| if (!mout->spdif_rates) { |
| snd_hda_query_supported_pcm(codec, mout->dig_out_nid, |
| &mout->spdif_rates, |
| &mout->spdif_formats, |
| &mout->spdif_maxbps); |
| } |
| mutex_lock(&codec->spdif_mutex); |
| if (mout->share_spdif) { |
| if ((runtime->hw.rates & mout->spdif_rates) && |
| (runtime->hw.formats & mout->spdif_formats)) { |
| runtime->hw.rates &= mout->spdif_rates; |
| runtime->hw.formats &= mout->spdif_formats; |
| if (mout->spdif_maxbps < hinfo->maxbps) |
| hinfo->maxbps = mout->spdif_maxbps; |
| } else { |
| mout->share_spdif = 0; |
| /* FIXME: need notify? */ |
| } |
| } |
| mutex_unlock(&codec->spdif_mutex); |
| } |
| return snd_pcm_hw_constraint_step(substream->runtime, 0, |
| SNDRV_PCM_HW_PARAM_CHANNELS, 2); |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_open); |
| |
| /** |
| * snd_hda_multi_out_analog_prepare - Preapre the analog outputs. |
| * |
| * Set up the i/o for analog out. |
| * When the digital out is available, copy the front out to digital out, too. |
| */ |
| int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, |
| struct hda_multi_out *mout, |
| unsigned int stream_tag, |
| unsigned int format, |
| struct snd_pcm_substream *substream) |
| { |
| const hda_nid_t *nids = mout->dac_nids; |
| int chs = substream->runtime->channels; |
| struct hda_spdif_out *spdif; |
| int i; |
| |
| mutex_lock(&codec->spdif_mutex); |
| spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid); |
| if (mout->dig_out_nid && mout->share_spdif && |
| mout->dig_out_used != HDA_DIG_EXCLUSIVE) { |
| if (chs == 2 && |
| snd_hda_is_supported_format(codec, mout->dig_out_nid, |
| format) && |
| !(spdif->status & IEC958_AES0_NONAUDIO)) { |
| mout->dig_out_used = HDA_DIG_ANALOG_DUP; |
| setup_dig_out_stream(codec, mout->dig_out_nid, |
| stream_tag, format); |
| } else { |
| mout->dig_out_used = 0; |
| cleanup_dig_out_stream(codec, mout->dig_out_nid); |
| } |
| } |
| mutex_unlock(&codec->spdif_mutex); |
| |
| /* front */ |
| snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, |
| 0, format); |
| if (!mout->no_share_stream && |
| mout->hp_nid && mout->hp_nid != nids[HDA_FRONT]) |
| /* headphone out will just decode front left/right (stereo) */ |
| snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, |
| 0, format); |
| /* extra outputs copied from front */ |
| for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++) |
| if (!mout->no_share_stream && mout->hp_out_nid[i]) |
| snd_hda_codec_setup_stream(codec, |
| mout->hp_out_nid[i], |
| stream_tag, 0, format); |
| for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) |
| if (!mout->no_share_stream && mout->extra_out_nid[i]) |
| snd_hda_codec_setup_stream(codec, |
| mout->extra_out_nid[i], |
| stream_tag, 0, format); |
| |
| /* surrounds */ |
| for (i = 1; i < mout->num_dacs; i++) { |
| if (chs >= (i + 1) * 2) /* independent out */ |
| snd_hda_codec_setup_stream(codec, nids[i], stream_tag, |
| i * 2, format); |
| else if (!mout->no_share_stream) /* copy front */ |
| snd_hda_codec_setup_stream(codec, nids[i], stream_tag, |
| 0, format); |
| } |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_prepare); |
| |
| /** |
| * snd_hda_multi_out_analog_cleanup - clean up the setting for analog out |
| */ |
| int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, |
| struct hda_multi_out *mout) |
| { |
| const hda_nid_t *nids = mout->dac_nids; |
| int i; |
| |
| for (i = 0; i < mout->num_dacs; i++) |
| snd_hda_codec_cleanup_stream(codec, nids[i]); |
| if (mout->hp_nid) |
| snd_hda_codec_cleanup_stream(codec, mout->hp_nid); |
| for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++) |
| if (mout->hp_out_nid[i]) |
| snd_hda_codec_cleanup_stream(codec, |
| mout->hp_out_nid[i]); |
| for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) |
| if (mout->extra_out_nid[i]) |
| snd_hda_codec_cleanup_stream(codec, |
| mout->extra_out_nid[i]); |
| mutex_lock(&codec->spdif_mutex); |
| if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) { |
| cleanup_dig_out_stream(codec, mout->dig_out_nid); |
| mout->dig_out_used = 0; |
| } |
| mutex_unlock(&codec->spdif_mutex); |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_cleanup); |
| |
| /** |
| * snd_hda_get_default_vref - Get the default (mic) VREF pin bits |
| * |
| * Guess the suitable VREF pin bits to be set as the pin-control value. |
| * Note: the function doesn't set the AC_PINCTL_IN_EN bit. |
| */ |
| unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin) |
| { |
| unsigned int pincap; |
| unsigned int oldval; |
| oldval = snd_hda_codec_read(codec, pin, 0, |
| AC_VERB_GET_PIN_WIDGET_CONTROL, 0); |
| pincap = snd_hda_query_pin_caps(codec, pin); |
| pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT; |
| /* Exception: if the default pin setup is vref50, we give it priority */ |
| if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50) |
| return AC_PINCTL_VREF_80; |
| else if (pincap & AC_PINCAP_VREF_50) |
| return AC_PINCTL_VREF_50; |
| else if (pincap & AC_PINCAP_VREF_100) |
| return AC_PINCTL_VREF_100; |
| else if (pincap & AC_PINCAP_VREF_GRD) |
| return AC_PINCTL_VREF_GRD; |
| return AC_PINCTL_VREF_HIZ; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_get_default_vref); |
| |
| int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, |
| unsigned int val, bool cached) |
| { |
| if (val) { |
| unsigned int cap = snd_hda_query_pin_caps(codec, pin); |
| if (cap && (val & AC_PINCTL_OUT_EN)) { |
| if (!(cap & AC_PINCAP_OUT)) |
| val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN); |
| else if ((val & AC_PINCTL_HP_EN) && |
| !(cap & AC_PINCAP_HP_DRV)) |
| val &= ~AC_PINCTL_HP_EN; |
| } |
| if (cap && (val & AC_PINCTL_IN_EN)) { |
| if (!(cap & AC_PINCAP_IN)) |
| val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN); |
| } |
| } |
| if (cached) |
| return snd_hda_codec_update_cache(codec, pin, 0, |
| AC_VERB_SET_PIN_WIDGET_CONTROL, val); |
| else |
| return snd_hda_codec_write(codec, pin, 0, |
| AC_VERB_SET_PIN_WIDGET_CONTROL, val); |
| } |
| EXPORT_SYMBOL_HDA(_snd_hda_set_pin_ctl); |
| |
| /** |
| * snd_hda_add_imux_item - Add an item to input_mux |
| * |
| * When the same label is used already in the existing items, the number |
| * suffix is appended to the label. This label index number is stored |
| * to type_idx when non-NULL pointer is given. |
| */ |
| int snd_hda_add_imux_item(struct hda_input_mux *imux, const char *label, |
| int index, int *type_idx) |
| { |
| int i, label_idx = 0; |
| if (imux->num_items >= HDA_MAX_NUM_INPUTS) { |
| snd_printd(KERN_ERR "hda_codec: Too many imux items!\n"); |
| return -EINVAL; |
| } |
| for (i = 0; i < imux->num_items; i++) { |
| if (!strncmp(label, imux->items[i].label, strlen(label))) |
| label_idx++; |
| } |
| if (type_idx) |
| *type_idx = label_idx; |
| if (label_idx > 0) |
| snprintf(imux->items[imux->num_items].label, |
| sizeof(imux->items[imux->num_items].label), |
| "%s %d", label, label_idx); |
| else |
| strlcpy(imux->items[imux->num_items].label, label, |
| sizeof(imux->items[imux->num_items].label)); |
| imux->items[imux->num_items].index = index; |
| imux->num_items++; |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_add_imux_item); |
| |
| |
| #ifdef CONFIG_PM |
| /* |
| * power management |
| */ |
| |
| /** |
| * snd_hda_suspend - suspend the codecs |
| * @bus: the HDA bus |
| * |
| * Returns 0 if successful. |
| */ |
| int snd_hda_suspend(struct hda_bus *bus) |
| { |
| struct hda_codec *codec; |
| |
| list_for_each_entry(codec, &bus->codec_list, list) { |
| cancel_delayed_work_sync(&codec->jackpoll_work); |
| if (hda_codec_is_power_on(codec)) |
| hda_call_codec_suspend(codec, false); |
| } |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_suspend); |
| |
| /** |
| * snd_hda_resume - resume the codecs |
| * @bus: the HDA bus |
| * |
| * Returns 0 if successful. |
| */ |
| int snd_hda_resume(struct hda_bus *bus) |
| { |
| struct hda_codec *codec; |
| |
| list_for_each_entry(codec, &bus->codec_list, list) { |
| hda_call_codec_resume(codec); |
| } |
| return 0; |
| } |
| EXPORT_SYMBOL_HDA(snd_hda_resume); |
| #endif /* CONFIG_PM */ |
| |
| /* |
| * generic arrays |
| */ |
| |
| /** |
| * snd_array_new - get a new element from the given array |
| * @array: the array object |
| * |
| * Get a new element from the given array. If it exceeds the |
| * pre-allocated array size, re-allocate the array. |
| * |
| * Returns NULL if allocation failed. |
| */ |
| void *snd_array_new(struct snd_array *array) |
| { |
| if (snd_BUG_ON(!array->elem_size)) |
| return NULL; |
| if (array->used >= array->alloced) { |
| int num = array->alloced + array->alloc_align; |
| int size = (num + 1) * array->elem_size; |
| int oldsize = array->alloced * array->elem_size; |
| void *nlist; |
| if (snd_BUG_ON(num >= 4096)) |
| return NULL; |
| nlist = krealloc(array->list, size, GFP_KERNEL); |
| if (!nlist) |
| return NULL; |
| memset(nlist + oldsize, 0, size - oldsize); |
| array->list = nlist; |
| array->alloced = num; |
| } |
| return snd_array_elem(array, array->used++); |
| } |
| EXPORT_SYMBOL_HDA(snd_array_new); |
| |
| /** |
| * snd_array_free - free the given array elements |
| * @array: the array object |
| */ |
| void snd_array_free(struct snd_array *array) |
| { |
| kfree(array->list); |
| array->used = 0; |
| array->alloced = 0; |
| array->list = NULL; |
| } |
| EXPORT_SYMBOL_HDA(snd_array_free); |
| |
| /** |
| * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer |
| * @pcm: PCM caps bits |
| * @buf: the string buffer to write |
| * @buflen: the max buffer length |
| * |
| * used by hda_proc.c and hda_eld.c |
| */ |
| void snd_print_pcm_bits(int pcm, char *buf, int buflen) |
| { |
| static unsigned int bits[] = { 8, 16, 20, 24, 32 }; |
| int i, j; |
| |
| for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++) |
| if (pcm & (AC_SUPPCM_BITS_8 << i)) |
| j += snprintf(buf + j, buflen - j, " %d", bits[i]); |
| |
| buf[j] = '\0'; /* necessary when j == 0 */ |
| } |
| EXPORT_SYMBOL_HDA(snd_print_pcm_bits); |
| |
| MODULE_DESCRIPTION("HDA codec core"); |
| MODULE_LICENSE("GPL"); |