| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Takashi Iwai | 11655 | 68.58% | 234 | 78.26% |
| Jaroslav Kysela | 3716 | 21.87% | 13 | 4.35% |
| Stephen Warren | 380 | 2.24% | 3 | 1.00% |
| Mengdong Lin | 332 | 1.95% | 8 | 2.68% |
| Rakesh A Ughreja | 212 | 1.25% | 1 | 0.33% |
| David Henningsson | 181 | 1.07% | 5 | 1.67% |
| Libin Yang | 157 | 0.92% | 3 | 1.00% |
| Fengguang Wu | 90 | 0.53% | 5 | 1.67% |
| Wang Xingchao | 55 | 0.32% | 3 | 1.00% |
| Matt Ranostay | 53 | 0.31% | 1 | 0.33% |
| Laurence Darby | 38 | 0.22% | 1 | 0.33% |
| Ingo Molnar | 19 | 0.11% | 1 | 0.33% |
| Lu, Han | 14 | 0.08% | 1 | 0.33% |
| Clemens Ladisch | 13 | 0.08% | 1 | 0.33% |
| Nicolas Graziano | 12 | 0.07% | 1 | 0.33% |
| Herton Ronaldo Krzesinski | 12 | 0.07% | 1 | 0.33% |
| Takashi Sakamoto | 11 | 0.06% | 1 | 0.33% |
| Wang YanQing | 11 | 0.06% | 2 | 0.67% |
| Mike Waychison | 8 | 0.05% | 1 | 0.33% |
| Kees Cook | 5 | 0.03% | 1 | 0.33% |
| Markus Osterhoff | 3 | 0.02% | 1 | 0.33% |
| Paul Gortmaker | 3 | 0.02% | 1 | 0.33% |
| Dylan Reid | 2 | 0.01% | 1 | 0.33% |
| Andrew Paprocki | 2 | 0.01% | 1 | 0.33% |
| Sudip Mukherjee | 2 | 0.01% | 1 | 0.33% |
| Bhumika Goyal | 2 | 0.01% | 1 | 0.33% |
| Heloise NH | 1 | 0.01% | 1 | 0.33% |
| Pierre-Louis Bossart | 1 | 0.01% | 1 | 0.33% |
| David Howells | 1 | 0.01% | 1 | 0.33% |
| Abhijeet Kumar | 1 | 0.01% | 1 | 0.33% |
| Dave Airlie | 1 | 0.01% | 1 | 0.33% |
| Frederik Deweerdt | 1 | 0.01% | 1 | 0.33% |
| Total | 16994 | 299 |
/* * 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/init.h> #include <linux/delay.h> #include <linux/slab.h> #include <linux/mutex.h> #include <linux/module.h> #include <linux/pm.h> #include <linux/pm_runtime.h> #include <sound/core.h> #include <sound/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> #include <sound/hda_component.h> #define codec_in_pm(codec) snd_hdac_is_in_pm(&codec->core) #define hda_codec_is_power_on(codec) snd_hdac_is_power_on(&codec->core) #define codec_has_epss(codec) \ ((codec)->core.power_caps & AC_PWRST_EPSS) #define codec_has_clkstop(codec) \ ((codec)->core.power_caps & AC_PWRST_CLKSTOP) /* * Send and receive a verb - passed to exec_verb override for hdac_device */ static int codec_exec_verb(struct hdac_device *dev, unsigned int cmd, unsigned int flags, unsigned int *res) { struct hda_codec *codec = container_of(dev, struct hda_codec, core); struct hda_bus *bus = codec->bus; int err; if (cmd == ~0) return -1; again: snd_hda_power_up_pm(codec); mutex_lock(&bus->core.cmd_mutex); if (flags & HDA_RW_NO_RESPONSE_FALLBACK) bus->no_response_fallback = 1; err = snd_hdac_bus_exec_verb_unlocked(&bus->core, codec->core.addr, cmd, res); bus->no_response_fallback = 0; mutex_unlock(&bus->core.cmd_mutex); snd_hda_power_down_pm(codec); if (!codec_in_pm(codec) && res && err == -EAGAIN) { if (bus->response_reset) { codec_dbg(codec, "resetting BUS due to fatal communication error\n"); snd_hda_bus_reset(bus); } goto again; } /* clear reset-flag when the communication gets recovered */ if (!err || codec_in_pm(codec)) bus->response_reset = 0; return err; } /** * 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_GPL(snd_hda_sequence_write); /* connection list element */ struct hda_conn_list { struct list_head list; int len; hda_nid_t nid; hda_nid_t conns[0]; }; /* look up the cached results */ static struct hda_conn_list * lookup_conn_list(struct hda_codec *codec, hda_nid_t nid) { struct hda_conn_list *p; list_for_each_entry(p, &codec->conn_list, list) { if (p->nid == nid) return p; } return NULL; } static int add_conn_list(struct hda_codec *codec, hda_nid_t nid, int len, const hda_nid_t *list) { struct hda_conn_list *p; p = kmalloc(sizeof(*p) + len * sizeof(hda_nid_t), GFP_KERNEL); if (!p) return -ENOMEM; p->len = len; p->nid = nid; memcpy(p->conns, list, len * sizeof(hda_nid_t)); list_add(&p->list, &codec->conn_list); return 0; } static void remove_conn_list(struct hda_codec *codec) { while (!list_empty(&codec->conn_list)) { struct hda_conn_list *p; p = list_first_entry(&codec->conn_list, typeof(*p), list); list_del(&p->list); kfree(p); } } /* read the connection and add to the cache */ static int read_and_add_raw_conns(struct hda_codec *codec, hda_nid_t nid) { hda_nid_t list[32]; hda_nid_t *result = list; int len; len = snd_hda_get_raw_connections(codec, nid, list, ARRAY_SIZE(list)); if (len == -ENOSPC) { len = snd_hda_get_num_raw_conns(codec, nid); result = kmalloc_array(len, sizeof(hda_nid_t), GFP_KERNEL); if (!result) return -ENOMEM; len = snd_hda_get_raw_connections(codec, nid, result, len); } if (len >= 0) len = snd_hda_override_conn_list(codec, nid, len, result); if (result != list) kfree(result); return len; } /** * snd_hda_get_conn_list - get connection list * @codec: the HDA codec * @nid: NID to parse * @listp: the pointer to store NID list * * Parses the connection list of the given widget and stores the pointer * to the list of NIDs. * * Returns the number of connections, or a negative error code. * * Note that the returned pointer isn't protected against the list * modification. If snd_hda_override_conn_list() might be called * concurrently, protect with a mutex appropriately. */ int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid, const hda_nid_t **listp) { bool added = false; for (;;) { int err; const struct hda_conn_list *p; /* if the connection-list is already cached, read it */ p = lookup_conn_list(codec, nid); if (p) { if (listp) *listp = p->conns; return p->len; } if (snd_BUG_ON(added)) return -EINVAL; err = read_and_add_raw_conns(codec, nid); if (err < 0) return err; added = true; } } EXPORT_SYMBOL_GPL(snd_hda_get_conn_list); /** * snd_hda_get_connections - copy connection list * @codec: the HDA codec * @nid: NID to parse * @conn_list: connection list array; when NULL, checks only the size * @max_conns: max. number of connections to store * * Parses the connection list of the given widget and stores the list * of NIDs. * * Returns the number of connections, or a negative error code. */ int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid, hda_nid_t *conn_list, int max_conns) { const hda_nid_t *list; int len = snd_hda_get_conn_list(codec, nid, &list); if (len > 0 && conn_list) { if (len > max_conns) { codec_err(codec, "Too many connections %d for NID 0x%x\n", len, nid); return -EINVAL; } memcpy(conn_list, list, len * sizeof(hda_nid_t)); } return len; } EXPORT_SYMBOL_GPL(snd_hda_get_connections); /** * snd_hda_override_conn_list - add/modify the connection-list to cache * @codec: the HDA codec * @nid: NID to parse * @len: number of connection list entries * @list: the list of connection entries * * Add or modify the given connection-list to the cache. If the corresponding * cache already exists, invalidate it and append a new one. * * Returns zero or a negative error code. */ int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len, const hda_nid_t *list) { struct hda_conn_list *p; p = lookup_conn_list(codec, nid); if (p) { list_del(&p->list); kfree(p); } return add_conn_list(codec, nid, len, list); } EXPORT_SYMBOL_GPL(snd_hda_override_conn_list); /** * snd_hda_get_conn_index - get the connection index of the given NID * @codec: the HDA codec * @mux: NID containing the list * @nid: NID to select * @recursive: 1 when searching NID recursively, otherwise 0 * * Parses the connection list of the widget @mux and checks whether the * widget @nid is present. If it is, return the connection index. * Otherwise it returns -1. */ int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux, hda_nid_t nid, int recursive) { const hda_nid_t *conn; int i, nums; nums = snd_hda_get_conn_list(codec, mux, &conn); for (i = 0; i < nums; i++) if (conn[i] == nid) return i; if (!recursive) return -1; if (recursive > 10) { codec_dbg(codec, "too deep connection for 0x%x\n", nid); return -1; } recursive++; for (i = 0; i < nums; i++) { unsigned int type = get_wcaps_type(get_wcaps(codec, conn[i])); if (type == AC_WID_PIN || type == AC_WID_AUD_OUT) continue; if (snd_hda_get_conn_index(codec, conn[i], nid, recursive) >= 0) return i; } return -1; } EXPORT_SYMBOL_GPL(snd_hda_get_conn_index); /** * snd_hda_get_num_devices - get DEVLIST_LEN parameter of the given widget * @codec: the HDA codec * @nid: NID of the pin to parse * * Get the device entry number on the given widget. This is a feature of * DP MST audio. Each pin can have several device entries in it. */ unsigned int snd_hda_get_num_devices(struct hda_codec *codec, hda_nid_t nid) { unsigned int wcaps = get_wcaps(codec, nid); unsigned int parm; if (!codec->dp_mst || !(wcaps & AC_WCAP_DIGITAL) || get_wcaps_type(wcaps) != AC_WID_PIN) return 0; parm = snd_hdac_read_parm_uncached(&codec->core, nid, AC_PAR_DEVLIST_LEN); if (parm == -1) parm = 0; return parm & AC_DEV_LIST_LEN_MASK; } EXPORT_SYMBOL_GPL(snd_hda_get_num_devices); /** * snd_hda_get_devices - copy device list without cache * @codec: the HDA codec * @nid: NID of the pin to parse * @dev_list: device list array * @max_devices: max. number of devices to store * * Copy the device list. This info is dynamic and so not cached. * Currently called only from hda_proc.c, so not exported. */ int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid, u8 *dev_list, int max_devices) { unsigned int parm; int i, dev_len, devices; parm = snd_hda_get_num_devices(codec, nid); if (!parm) /* not multi-stream capable */ return 0; dev_len = parm + 1; dev_len = dev_len < max_devices ? dev_len : max_devices; devices = 0; while (devices < dev_len) { if (snd_hdac_read(&codec->core, nid, AC_VERB_GET_DEVICE_LIST, devices, &parm)) break; /* error */ for (i = 0; i < 8; i++) { dev_list[devices] = (u8)parm; parm >>= 4; devices++; if (devices >= dev_len) break; } } return devices; } /** * snd_hda_get_dev_select - get device entry select on the pin * @codec: the HDA codec * @nid: NID of the pin to get device entry select * * Get the devcie entry select on the pin. Return the device entry * id selected on the pin. Return 0 means the first device entry * is selected or MST is not supported. */ int snd_hda_get_dev_select(struct hda_codec *codec, hda_nid_t nid) { /* not support dp_mst will always return 0, using first dev_entry */ if (!codec->dp_mst) return 0; return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DEVICE_SEL, 0); } EXPORT_SYMBOL_GPL(snd_hda_get_dev_select); /** * snd_hda_set_dev_select - set device entry select on the pin * @codec: the HDA codec * @nid: NID of the pin to set device entry select * @dev_id: device entry id to be set * * Set the device entry select on the pin nid. */ int snd_hda_set_dev_select(struct hda_codec *codec, hda_nid_t nid, int dev_id) { int ret, num_devices; /* not support dp_mst will always return 0, using first dev_entry */ if (!codec->dp_mst) return 0; /* AC_PAR_DEVLIST_LEN is 0 based. */ num_devices = snd_hda_get_num_devices(codec, nid) + 1; /* If Device List Length is 0 (num_device = 1), * the pin is not multi stream capable. * Do nothing in this case. */ if (num_devices == 1) return 0; /* Behavior of setting index being equal to or greater than * Device List Length is not predictable */ if (num_devices <= dev_id) return -EINVAL; ret = snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DEVICE_SEL, dev_id); return ret; } EXPORT_SYMBOL_GPL(snd_hda_set_dev_select); /* * read widget caps for each widget and store in cache */ static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node) { int i; hda_nid_t nid; codec->wcaps = kmalloc_array(codec->core.num_nodes, 4, GFP_KERNEL); if (!codec->wcaps) return -ENOMEM; nid = codec->core.start_nid; for (i = 0; i < codec->core.num_nodes; i++, nid++) codec->wcaps[i] = snd_hdac_read_parm_uncached(&codec->core, nid, AC_PAR_AUDIO_WIDGET_CAP); return 0; } /* read all pin default configurations and save codec->init_pins */ static int read_pin_defaults(struct hda_codec *codec) { hda_nid_t nid; for_each_hda_codec_node(nid, codec) { struct hda_pincfg *pin; unsigned int wcaps = get_wcaps(codec, nid); unsigned int wid_type = get_wcaps_type(wcaps); if (wid_type != AC_WID_PIN) continue; pin = snd_array_new(&codec->init_pins); if (!pin) return -ENOMEM; pin->nid = nid; pin->cfg = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0); /* * all device entries are the same widget control so far * fixme: if any codec is different, need fix here */ 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) { struct hda_pincfg *pin; int i; snd_array_for_each(array, i, pin) { 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; /* the check below may be invalid when pins are added by a fixup * dynamically (e.g. via snd_hda_codec_update_widgets()), so disabled * for now */ /* if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN) return -EINVAL; */ pin = look_up_pincfg(codec, list, nid); if (!pin) { pin = snd_array_new(list); if (!pin) return -ENOMEM; pin->nid = nid; } pin->cfg = cfg; return 0; } /** * 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_GPL(snd_hda_codec_set_pincfg); /** * snd_hda_codec_get_pincfg - Obtain a pin-default configuration * @codec: the HDA codec * @nid: NID to get the pin config * * Get the current pin config value of the given pin NID. * If the pincfg value is cached or overridden via sysfs or driver, * returns the cached value. */ unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid) { struct hda_pincfg *pin; #ifdef CONFIG_SND_HDA_RECONFIG { unsigned int cfg = 0; mutex_lock(&codec->user_mutex); pin = look_up_pincfg(codec, &codec->user_pins, nid); if (pin) cfg = pin->cfg; mutex_unlock(&codec->user_mutex); if (cfg) return cfg; } #endif pin = look_up_pincfg(codec, &codec->driver_pins, nid); if (pin) return pin->cfg; pin = look_up_pincfg(codec, &codec->init_pins, nid); if (pin) return pin->cfg; return 0; } EXPORT_SYMBOL_GPL(snd_hda_codec_get_pincfg); /** * snd_hda_codec_set_pin_target - remember the current pinctl target value * @codec: the HDA codec * @nid: pin NID * @val: assigned pinctl value * * This function stores the given value to a pinctl target value in the * pincfg table. This isn't always as same as the actually written value * but can be referred at any time via snd_hda_codec_get_pin_target(). */ int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid, unsigned int val) { struct hda_pincfg *pin; pin = look_up_pincfg(codec, &codec->init_pins, nid); if (!pin) return -EINVAL; pin->target = val; return 0; } EXPORT_SYMBOL_GPL(snd_hda_codec_set_pin_target); /** * snd_hda_codec_get_pin_target - return the current pinctl target value * @codec: the HDA codec * @nid: pin NID */ int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid) { struct hda_pincfg *pin; pin = look_up_pincfg(codec, &codec->init_pins, nid); if (!pin) return 0; return pin->target; } EXPORT_SYMBOL_GPL(snd_hda_codec_get_pin_target); /** * snd_hda_shutup_pins - Shut up all pins * @codec: the HDA codec * * Clear all pin controls to shup up before suspend for avoiding click noise. * The controls aren't cached so that they can be resumed properly. */ void snd_hda_shutup_pins(struct hda_codec *codec) { const struct hda_pincfg *pin; 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; snd_array_for_each(&codec->init_pins, i, pin) { /* 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_GPL(snd_hda_shutup_pins); #ifdef CONFIG_PM /* Restore the pin controls cleared previously via snd_hda_shutup_pins() */ static void restore_shutup_pins(struct hda_codec *codec) { const struct hda_pincfg *pin; int i; if (!codec->pins_shutup) return; if (codec->bus->shutdown) return; snd_array_for_each(&codec->init_pins, i, pin) { 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); snd_hda_jack_set_dirty_all(codec); snd_hda_jack_poll_all(codec); if (!codec->jackpoll_interval) return; schedule_delayed_work(&codec->jackpoll_work, codec->jackpoll_interval); } /* release all pincfg lists */ static void free_init_pincfgs(struct hda_codec *codec) { snd_array_free(&codec->driver_pins); #ifdef CONFIG_SND_HDA_RECONFIG snd_array_free(&codec->user_pins); #endif snd_array_free(&codec->init_pins); } /* * 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; snd_array_for_each(&codec->cvt_setups, i, p) { if (p->nid == nid) return p; } p = snd_array_new(&codec->cvt_setups); if (p) p->nid = nid; return p; } /* * PCM device */ static void release_pcm(struct kref *kref) { struct hda_pcm *pcm = container_of(kref, struct hda_pcm, kref); if (pcm->pcm) snd_device_free(pcm->codec->card, pcm->pcm); clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits); kfree(pcm->name); kfree(pcm); } void snd_hda_codec_pcm_put(struct hda_pcm *pcm) { kref_put(&pcm->kref, release_pcm); } EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_put); struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec, const char *fmt, ...) { struct hda_pcm *pcm; va_list args; pcm = kzalloc(sizeof(*pcm), GFP_KERNEL); if (!pcm) return NULL; pcm->codec = codec; kref_init(&pcm->kref); va_start(args, fmt); pcm->name = kvasprintf(GFP_KERNEL, fmt, args); va_end(args); if (!pcm->name) { kfree(pcm); return NULL; } list_add_tail(&pcm->list, &codec->pcm_list_head); return pcm; } EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new); /* * codec destructor */ static void codec_release_pcms(struct hda_codec *codec) { struct hda_pcm *pcm, *n; list_for_each_entry_safe(pcm, n, &codec->pcm_list_head, list) { list_del_init(&pcm->list); if (pcm->pcm) snd_device_disconnect(codec->card, pcm->pcm); snd_hda_codec_pcm_put(pcm); } } void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec) { if (codec->registered) { /* pm_runtime_put() is called in snd_hdac_device_exit() */ pm_runtime_get_noresume(hda_codec_dev(codec)); pm_runtime_disable(hda_codec_dev(codec)); codec->registered = 0; } cancel_delayed_work_sync(&codec->jackpoll_work); if (!codec->in_freeing) snd_hda_ctls_clear(codec); codec_release_pcms(codec); snd_hda_detach_beep_device(codec); memset(&codec->patch_ops, 0, sizeof(codec->patch_ops)); snd_hda_jack_tbl_clear(codec); codec->proc_widget_hook = NULL; codec->spec = NULL; /* free only driver_pins so that init_pins + user_pins are restored */ snd_array_free(&codec->driver_pins); snd_array_free(&codec->cvt_setups); snd_array_free(&codec->spdif_out); snd_array_free(&codec->verbs); codec->preset = NULL; codec->slave_dig_outs = NULL; codec->spdif_status_reset = 0; snd_array_free(&codec->mixers); snd_array_free(&codec->nids); remove_conn_list(codec); snd_hdac_regmap_exit(&codec->core); } static unsigned int hda_set_power_state(struct hda_codec *codec, unsigned int power_state); /* enable/disable display power per codec */ static void codec_display_power(struct hda_codec *codec, bool enable) { if (codec->display_power_control) snd_hdac_display_power(&codec->bus->core, codec->addr, enable); } /* also called from hda_bind.c */ void snd_hda_codec_register(struct hda_codec *codec) { if (codec->registered) return; if (device_is_registered(hda_codec_dev(codec))) { snd_hda_register_beep_device(codec); codec_display_power(codec, true); pm_runtime_enable(hda_codec_dev(codec)); /* it was powered up in snd_hda_codec_new(), now all done */ snd_hda_power_down(codec); codec->registered = 1; } } static int snd_hda_codec_dev_register(struct snd_device *device) { snd_hda_codec_register(device->device_data); return 0; } static int snd_hda_codec_dev_disconnect(struct snd_device *device) { struct hda_codec *codec = device->device_data; snd_hda_detach_beep_device(codec); return 0; } static int snd_hda_codec_dev_free(struct snd_device *device) { struct hda_codec *codec = device->device_data; codec->in_freeing = 1; snd_hdac_device_unregister(&codec->core); codec_display_power(codec, false); put_device(hda_codec_dev(codec)); return 0; } static void snd_hda_codec_dev_release(struct device *dev) { struct hda_codec *codec = dev_to_hda_codec(dev); free_init_pincfgs(codec); snd_hdac_device_exit(&codec->core); snd_hda_sysfs_clear(codec); kfree(codec->modelname); kfree(codec->wcaps); kfree(codec); } #define DEV_NAME_LEN 31 static int snd_hda_codec_device_init(struct hda_bus *bus, struct snd_card *card, unsigned int codec_addr, struct hda_codec **codecp) { char name[DEV_NAME_LEN]; struct hda_codec *codec; int err; dev_dbg(card->dev, "%s: entry\n", __func__); if (snd_BUG_ON(!bus)) return -EINVAL; if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS)) return -EINVAL; codec = kzalloc(sizeof(*codec), GFP_KERNEL); if (!codec) return -ENOMEM; sprintf(name, "hdaudioC%dD%d", card->number, codec_addr); err = snd_hdac_device_init(&codec->core, &bus->core, name, codec_addr); if (err < 0) { kfree(codec); return err; } codec->core.type = HDA_DEV_LEGACY; *codecp = codec; return err; } /** * snd_hda_codec_new - create a HDA codec * @bus: the bus to assign * @codec_addr: the codec address * @codecp: the pointer to store the generated codec * * Returns 0 if successful, or a negative error code. */ int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card, unsigned int codec_addr, struct hda_codec **codecp) { int ret; ret = snd_hda_codec_device_init(bus, card, codec_addr, codecp); if (ret < 0) return ret; return snd_hda_codec_device_new(bus, card, codec_addr, *codecp); } EXPORT_SYMBOL_GPL(snd_hda_codec_new); int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card, unsigned int codec_addr, struct hda_codec *codec) { char component[31]; hda_nid_t fg; int err; static struct snd_device_ops dev_ops = { .dev_register = snd_hda_codec_dev_register, .dev_disconnect = snd_hda_codec_dev_disconnect, .dev_free = snd_hda_codec_dev_free, }; dev_dbg(card->dev, "%s: entry\n", __func__); if (snd_BUG_ON(!bus)) return -EINVAL; if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS)) return -EINVAL; codec->core.dev.release = snd_hda_codec_dev_release; codec->core.exec_verb = codec_exec_verb; codec->bus = bus; codec->card = card; codec->addr = codec_addr; mutex_init(&codec->spdif_mutex); mutex_init(&codec->control_mutex); snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32); snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32); snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16); snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16); snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8); snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16); snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16); snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8); INIT_LIST_HEAD(&codec->conn_list); INIT_LIST_HEAD(&codec->pcm_list_head); INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work); codec->depop_delay = -1; codec->fixup_id = HDA_FIXUP_ID_NOT_SET; #ifdef CONFIG_PM codec->power_jiffies = jiffies; #endif snd_hda_sysfs_init(codec); if (codec->bus->modelname) { codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL); if (!codec->modelname) { err = -ENOMEM; goto error; } } fg = codec->core.afg ? codec->core.afg : codec->core.mfg; err = read_widget_caps(codec, fg); if (err < 0) goto error; err = read_pin_defaults(codec); if (err < 0) goto error; /* power-up all before initialization */ hda_set_power_state(codec, AC_PWRST_D0); snd_hda_codec_proc_new(codec); snd_hda_create_hwdep(codec); sprintf(component, "HDA:%08x,%08x,%08x", codec->core.vendor_id, codec->core.subsystem_id, codec->core.revision_id); snd_component_add(card, component); err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops); if (err < 0) goto error; return 0; error: put_device(hda_codec_dev(codec)); return err; } EXPORT_SYMBOL_GPL(snd_hda_codec_device_new); /** * snd_hda_codec_update_widgets - Refresh widget caps and pin defaults * @codec: the HDA codec * * Forcibly refresh the all widget caps and the init pin configurations of * the given codec. */ int snd_hda_codec_update_widgets(struct hda_codec *codec) { hda_nid_t fg; int err; err = snd_hdac_refresh_widgets(&codec->core, true); if (err < 0) return err; /* Assume the function group node does not change, * only the widget nodes may change. */ kfree(codec->wcaps); fg = codec->core.afg ? codec->core.afg : codec->core.mfg; err = read_widget_caps(codec, fg); if (err < 0) return err; snd_array_free(&codec->init_pins); err = read_pin_defaults(codec); return err; } EXPORT_SYMBOL_GPL(snd_hda_codec_update_widgets); /* update the stream-id if changed */ static void update_pcm_stream_id(struct hda_codec *codec, struct hda_cvt_setup *p, hda_nid_t nid, u32 stream_tag, int channel_id) { unsigned int oldval, newval; if (p->stream_tag != stream_tag || p->channel_id != channel_id) { oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0); newval = (stream_tag << 4) | channel_id; if (oldval != newval) snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, newval); p->stream_tag = stream_tag; p->channel_id = channel_id; } } /* 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; codec_dbg(codec, "hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n", nid, stream_tag, channel_id, format); p = get_hda_cvt_setup(codec, nid); if (!p) return; if (codec->patch_ops.stream_pm) codec->patch_ops.stream_pm(codec, nid, true); if (codec->pcm_format_first) update_pcm_format(codec, p, nid, format); update_pcm_stream_id(codec, p, nid, stream_tag, channel_id); if (!codec->pcm_format_first) update_pcm_format(codec, p, nid, format); p->active = 1; p->dirty = 0; /* make other inactive cvts with the same stream-tag dirty */ type = get_wcaps_type(get_wcaps(codec, nid)); list_for_each_codec(c, codec->bus) { snd_array_for_each(&c->cvt_setups, i, p) { if (!p->active && p->stream_tag == stream_tag && get_wcaps_type(get_wcaps(c, p->nid)) == type) p->dirty = 1; } } } EXPORT_SYMBOL_GPL(snd_hda_codec_setup_stream); static void really_cleanup_stream(struct hda_codec *codec, struct hda_cvt_setup *q); /** * __snd_hda_codec_cleanup_stream - clean up the codec for closing * @codec: the CODEC to clean up * @nid: the NID to clean up * @do_now: really clean up the stream instead of clearing the active flag */ void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid, int do_now) { struct hda_cvt_setup *p; if (!nid) return; if (codec->no_sticky_stream) do_now = 1; codec_dbg(codec, "hda_codec_cleanup_stream: NID=0x%x\n", nid); p = get_hda_cvt_setup(codec, nid); if (p) { /* here we just clear the active flag when do_now isn't set; * actual clean-ups will be done later in * purify_inactive_streams() called from snd_hda_codec_prpapre() */ if (do_now) really_cleanup_stream(codec, p); else p->active = 0; } } EXPORT_SYMBOL_GPL(__snd_hda_codec_cleanup_stream); static void really_cleanup_stream(struct hda_codec *codec, struct hda_cvt_setup *q) { hda_nid_t nid = q->nid; if (q->stream_tag || q->channel_id) snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0); if (q->format_id) snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0 ); memset(q, 0, sizeof(*q)); q->nid = nid; if (codec->patch_ops.stream_pm) codec->patch_ops.stream_pm(codec, nid, false); } /* clean up the all conflicting obsolete streams */ static void purify_inactive_streams(struct hda_codec *codec) { struct hda_codec *c; struct hda_cvt_setup *p; int i; list_for_each_codec(c, codec->bus) { snd_array_for_each(&c->cvt_setups, i, p) { 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) { struct hda_cvt_setup *p; int i; snd_array_for_each(&codec->cvt_setups, i, p) { if (p->stream_tag) really_cleanup_stream(codec, p); } } #endif /* * amp access functions */ /** * query_amp_caps - query AMP capabilities * @codec: the HD-auio codec * @nid: the NID to query * @direction: either #HDA_INPUT or #HDA_OUTPUT * * Query AMP capabilities for the given widget and direction. * Returns the obtained capability bits. * * When cap bits have been already read, this doesn't read again but * returns the cached value. */ u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction) { if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD)) nid = codec->core.afg; return snd_hda_param_read(codec, nid, direction == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP); } EXPORT_SYMBOL_GPL(query_amp_caps); /** * snd_hda_check_amp_caps - query AMP capabilities * @codec: the HD-audio codec * @nid: the NID to query * @dir: either #HDA_INPUT or #HDA_OUTPUT * @bits: bit mask to check the result * * Check whether the widget has the given amp capability for the direction. */ bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir, unsigned int bits) { if (!nid) return false; if (get_wcaps(codec, nid) & (1 << (dir + 1))) if (query_amp_caps(codec, nid, dir) & bits) return true; return false; } EXPORT_SYMBOL_GPL(snd_hda_check_amp_caps); /** * snd_hda_override_amp_caps - Override the AMP capabilities * @codec: the CODEC to clean up * @nid: the NID to clean up * @dir: either #HDA_INPUT or #HDA_OUTPUT * @caps: the capability bits to set * * Override the cached AMP caps bits value by the given one. * This function is useful if the driver needs to adjust the AMP ranges, * e.g. limit to 0dB, etc. * * Returns zero if successful or a negative error code. */ int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir, unsigned int caps) { unsigned int parm; snd_hda_override_wcaps(codec, nid, get_wcaps(codec, nid) | AC_WCAP_AMP_OVRD); parm = dir == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP; return snd_hdac_override_parm(&codec->core, nid, parm, caps); } EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps); /** * snd_hda_codec_amp_update - update the AMP mono value * @codec: HD-audio codec * @nid: NID to read the AMP value * @ch: channel to update (0 or 1) * @dir: #HDA_INPUT or #HDA_OUTPUT * @idx: the index value (only for input direction) * @mask: bit mask to set * @val: the bits value to set * * Update the AMP values for the given channel, direction and index. */ int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch, int dir, int idx, int mask, int val) { unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx); /* enable fake mute if no h/w mute but min=mute */ if ((query_amp_caps(codec, nid, dir) & (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE) cmd |= AC_AMP_FAKE_MUTE; return snd_hdac_regmap_update_raw(&codec->core, cmd, mask, val); } EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update); /** * snd_hda_codec_amp_stereo - update the AMP stereo values * @codec: HD-audio codec * @nid: NID to read the AMP value * @direction: #HDA_INPUT or #HDA_OUTPUT * @idx: the index value (only for input direction) * @mask: bit mask to set * @val: the bits value to set * * Update the AMP values like snd_hda_codec_amp_update(), but for a * stereo widget with the same mask and value. */ int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid, int direction, int idx, int mask, int val) { int ch, ret = 0; if (snd_BUG_ON(mask & ~0xff)) mask &= 0xff; for (ch = 0; ch < 2; ch++) ret |= snd_hda_codec_amp_update(codec, nid, ch, direction, idx, mask, val); return ret; } EXPORT_SYMBOL_GPL(snd_hda_codec_amp_stereo); /** * snd_hda_codec_amp_init - initialize the AMP value * @codec: the HDA codec * @nid: NID to read the AMP value * @ch: channel (left=0 or right=1) * @dir: #HDA_INPUT or #HDA_OUTPUT * @idx: the index value (only for input direction) * @mask: bit mask to set * @val: the bits value to set * * Works like snd_hda_codec_amp_update() but it writes the value only at * the first access. If the amp was already initialized / updated beforehand, * this does nothing. */ int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch, int dir, int idx, int mask, int val) { int orig; if (!codec->core.regmap) return -EINVAL; regcache_cache_only(codec->core.regmap, true); orig = snd_hda_codec_amp_read(codec, nid, ch, dir, idx); regcache_cache_only(codec->core.regmap, false); if (orig >= 0) return 0; return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, mask, val); } EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init); /** * snd_hda_codec_amp_init_stereo - initialize the stereo AMP value * @codec: the HDA codec * @nid: NID to read the AMP value * @dir: #HDA_INPUT or #HDA_OUTPUT * @idx: the index value (only for input direction) * @mask: bit mask to set * @val: the bits value to set * * Call snd_hda_codec_amp_init() for both stereo channels. */ int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid, int dir, int idx, int mask, int val) { int ch, ret = 0; if (snd_BUG_ON(mask & ~0xff)) mask &= 0xff; for (ch = 0; ch < 2; ch++) ret |= snd_hda_codec_amp_init(codec, nid, ch, dir, idx, mask, val); return ret; } EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init_stereo); static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir, unsigned int ofs) { u32 caps = query_amp_caps(codec, nid, dir); /* get num steps */ caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; if (ofs < caps) caps -= ofs; return caps; } /** * snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer * @kcontrol: referred ctl element * @uinfo: pointer to get/store the data * * The control element is supposed to have the private_value field * set up via HDA_COMPOSE_AMP_VAL*() or related macros. */ int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); u16 nid = get_amp_nid(kcontrol); u8 chs = get_amp_channels(kcontrol); int dir = get_amp_direction(kcontrol); unsigned int ofs = get_amp_offset(kcontrol); uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = chs == 3 ? 2 : 1; uinfo->value.integer.min = 0; uinfo->value.integer.max = get_amp_max_value(codec, nid, dir, ofs); if (!uinfo->value.integer.max) { codec_warn(codec, "num_steps = 0 for NID=0x%x (ctl = %s)\n", nid, kcontrol->id.name); return -EINVAL; } return 0; } EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_info); static inline unsigned int read_amp_value(struct hda_codec *codec, hda_nid_t nid, int ch, int dir, int idx, unsigned int ofs) { unsigned int val; val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx); val &= HDA_AMP_VOLMASK; if (val >= ofs) val -= ofs; else val = 0; return val; } 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 * @kcontrol: ctl element * @ucontrol: pointer to get/store the data * * The control element is supposed to have the private_value field * set up via HDA_COMPOSE_AMP_VAL*() or related macros. */ int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); hda_nid_t nid = get_amp_nid(kcontrol); int chs = get_amp_channels(kcontrol); int dir = get_amp_direction(kcontrol); int idx = get_amp_index(kcontrol); unsigned int ofs = get_amp_offset(kcontrol); long *valp = ucontrol->value.integer.value; if (chs & 1) *valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs); if (chs & 2) *valp = read_amp_value(codec, nid, 1, dir, idx, ofs); return 0; } EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_get); /** * snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume * @kcontrol: ctl element * @ucontrol: pointer to get/store the data * * The control element is supposed to have the private_value field * set up via HDA_COMPOSE_AMP_VAL*() or related macros. */ int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); hda_nid_t nid = get_amp_nid(kcontrol); int chs = get_amp_channels(kcontrol); int dir = get_amp_direction(kcontrol); int idx = get_amp_index(kcontrol); unsigned int ofs = get_amp_offset(kcontrol); long *valp = ucontrol->value.integer.value; int change = 0; if (chs & 1) { change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp); valp++; } if (chs & 2) change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp); return change; } EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_put); /* inquiry the amp caps and convert to TLV */ static void get_ctl_amp_tlv(struct snd_kcontrol *kcontrol, unsigned int *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; 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; tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE; tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int); tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = val1; tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = val2; } /** * snd_hda_mixer_amp_tlv - TLV callback for a standard AMP mixer volume * @kcontrol: ctl element * @op_flag: operation flag * @size: byte size of input TLV * @_tlv: TLV data * * The control element is supposed to have the private_value field * set up via HDA_COMPOSE_AMP_VAL*() or related macros. */ int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag, unsigned int size, unsigned int __user *_tlv) { unsigned int tlv[4]; if (size < 4 * sizeof(unsigned int)) return -ENOMEM; get_ctl_amp_tlv(kcontrol, tlv); if (copy_to_user(_tlv, tlv, sizeof(tlv))) return -EFAULT; return 0; } EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_tlv); /** * snd_hda_set_vmaster_tlv - Set TLV for a virtual master control * @codec: HD-audio codec * @nid: NID of a reference widget * @dir: #HDA_INPUT or #HDA_OUTPUT * @tlv: TLV data to be stored, at least 4 elements * * Set (static) TLV data for a virtual master volume using the AMP caps * obtained from the reference NID. * The volume range is recalculated as if the max volume is 0dB. */ void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir, unsigned int *tlv) { u32 caps; int nums, step; caps = query_amp_caps(codec, nid, dir); nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT; step = (step + 1) * 25; tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE; tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int); tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = -nums * step; tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = step; } EXPORT_SYMBOL_GPL(snd_hda_set_vmaster_tlv); /* find a mixer control element with the given name */ static struct snd_kcontrol * find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx) { struct snd_ctl_elem_id id; memset(&id, 0, sizeof(id)); id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; id.device = dev; id.index = idx; if (snd_BUG_ON(strlen(name) >= sizeof(id.name))) return NULL; strcpy(id.name, name); return snd_ctl_find_id(codec->card, &id); } /** * 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_GPL(snd_hda_find_mixer_ctl); static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name, int start_idx) { int i, idx; /* 16 ctlrs should be large enough */ for (i = 0, idx = start_idx; i < 16; i++, idx++) { if (!find_mixer_ctl(codec, name, 0, idx)) return idx; } return -EBUSY; } /** * snd_hda_ctl_add - Add a control element and assign to the codec * @codec: HD-audio codec * @nid: corresponding NID (optional) * @kctl: the control element to assign * * Add the given control element to an array inside the codec instance. * All control elements belonging to a codec are supposed to be added * by this function so that a proper clean-up works at the free or * reconfiguration time. * * If non-zero @nid is passed, the NID is assigned to the control element. * The assignment is shown in the codec proc file. * * snd_hda_ctl_add() checks the control subdev id field whether * #HDA_SUBDEV_NID_FLAG bit is set. If set (and @nid is zero), the lower * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit * specifies if kctl->private_value is a HDA amplifier value. */ int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid, struct snd_kcontrol *kctl) { int err; unsigned short flags = 0; struct hda_nid_item *item; if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) { flags |= HDA_NID_ITEM_AMP; if (nid == 0) nid = get_amp_nid_(kctl->private_value); } if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0) nid = kctl->id.subdevice & 0xffff; if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG)) kctl->id.subdevice = 0; err = snd_ctl_add(codec->card, kctl); if (err < 0) return err; item = snd_array_new(&codec->mixers); if (!item) return -ENOMEM; item->kctl = kctl; item->nid = nid; item->flags = flags; return 0; } EXPORT_SYMBOL_GPL(snd_hda_ctl_add); /** * snd_hda_add_nid - Assign a NID to a control element * @codec: HD-audio codec * @nid: corresponding NID (optional) * @kctl: the control element to assign * @index: index to kctl * * Add the given control element to an array inside the codec instance. * This function is used when #snd_hda_ctl_add cannot be used for 1:1 * NID:KCTL mapping - for example "Capture Source" selector. */ int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl, unsigned int index, hda_nid_t nid) { struct hda_nid_item *item; if (nid > 0) { item = snd_array_new(&codec->nids); if (!item) return -ENOMEM; item->kctl = kctl; item->index = index; item->nid = nid; return 0; } codec_err(codec, "no NID for mapping control %s:%d:%d\n", kctl->id.name, kctl->id.index, index); return -EINVAL; } EXPORT_SYMBOL_GPL(snd_hda_add_nid); /** * snd_hda_ctls_clear - Clear all controls assigned to the given codec * @codec: HD-audio codec */ void snd_hda_ctls_clear(struct hda_codec *codec) { int i; struct hda_nid_item *items = codec->mixers.list; for (i = 0; i < codec->mixers.used; i++) snd_ctl_remove(codec->card, items[i].kctl); snd_array_free(&codec->mixers); snd_array_free(&codec->nids); } /** * snd_hda_lock_devices - pseudo device locking * @bus: the BUS * * toggle card->shutdown to allow/disallow the device access (as a hack) */ int snd_hda_lock_devices(struct hda_bus *bus) { struct snd_card *card = bus->card; struct hda_codec *codec; spin_lock(&card->files_lock); if (card->shutdown) goto err_unlock; card->shutdown = 1; if (!list_empty(&card->ctl_files)) goto err_clear; list_for_each_codec(codec, bus) { struct hda_pcm *cpcm; list_for_each_entry(cpcm, &codec->pcm_list_head, list) { if (!cpcm->pcm) continue; if (cpcm->pcm->streams[0].substream_opened || cpcm->pcm->streams[1].substream_opened) goto err_clear; } } spin_unlock(&card->files_lock); return 0; err_clear: card->shutdown = 0; err_unlock: spin_unlock(&card->files_lock); return -EINVAL; } EXPORT_SYMBOL_GPL(snd_hda_lock_devices); /** * snd_hda_unlock_devices - pseudo device unlocking * @bus: the BUS */ void snd_hda_unlock_devices(struct hda_bus *bus) { struct snd_card *card = bus->card; spin_lock(&card->files_lock); card->shutdown = 0; spin_unlock(&card->files_lock); } EXPORT_SYMBOL_GPL(snd_hda_unlock_devices); /** * snd_hda_codec_reset - Clear all objects assigned to the codec * @codec: HD-audio codec * * This frees the all PCM and control elements assigned to the codec, and * clears the caches and restores the pin default configurations. * * When a device is being used, it returns -EBSY. If successfully freed, * returns zero. */ int snd_hda_codec_reset(struct hda_codec *codec) { struct hda_bus *bus = codec->bus; if (snd_hda_lock_devices(bus) < 0) return -EBUSY; /* OK, let it free */ snd_hdac_device_unregister(&codec->core); /* allow device access again */ snd_hda_unlock_devices(bus); return 0; } typedef int (*map_slave_func_t)(struct hda_codec *, void *, struct snd_kcontrol *); /* apply the function to all matching slave ctls in the mixer list */ static int map_slaves(struct hda_codec *codec, const char * const *slaves, const char *suffix, map_slave_func_t func, void *data) { struct hda_nid_item *items; const char * const *s; int i, err; items = codec->mixers.list; for (i = 0; i < codec->mixers.used; i++) { struct snd_kcontrol *sctl = items[i].kctl; if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER) continue; for (s = slaves; *s; s++) { char tmpname[sizeof(sctl->id.name)]; const char *name = *s; if (suffix) { snprintf(tmpname, sizeof(tmpname), "%s %s", name, suffix); name = tmpname; } if (!strcmp(sctl->id.name, name)) { err = func(codec, data, sctl); if (err) return err; break; } } } return 0; } static int check_slave_present(struct hda_codec *codec, void *data, struct snd_kcontrol *sctl) { return 1; } /* 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; } struct slave_init_arg { struct hda_codec *codec; int step; }; /* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */ static int init_slave_0dB(struct snd_kcontrol *slave, struct snd_kcontrol *kctl, void *_arg) { struct slave_init_arg *arg = _arg; int _tlv[4]; const int *tlv = NULL; int step; int val; if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { if (kctl->tlv.c != snd_hda_mixer_amp_tlv) { codec_err(arg->codec, "Unexpected TLV callback for slave %s:%d\n", kctl->id.name, kctl->id.index); return 0; /* ignore */ } get_ctl_amp_tlv(kctl, _tlv); tlv = _tlv; } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) tlv = kctl->tlv.p; if (!tlv || tlv[SNDRV_CTL_TLVO_TYPE] != SNDRV_CTL_TLVT_DB_SCALE) return 0; step = tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP]; step &= ~TLV_DB_SCALE_MUTE; if (!step) return 0; if (arg->step && arg->step != step) { codec_err(arg->codec, "Mismatching dB step for vmaster slave (%d!=%d)\n", arg->step, step); return 0; } arg->step = step; val = -tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] / step; if (val > 0) { put_kctl_with_value(slave, val); return val; } return 0; } /* unmute the slave via snd_ctl_apply_vmaster_slaves() */ static int init_slave_unmute(struct snd_kcontrol *slave, struct snd_kcontrol *kctl, void *_arg) { return put_kctl_with_value(slave, 1); } static int add_slave(struct hda_codec *codec, void *data, struct snd_kcontrol *slave) { return snd_ctl_add_slave(data, slave); } /** * __snd_hda_add_vmaster - create a virtual master control and add slaves * @codec: HD-audio codec * @name: vmaster control name * @tlv: TLV data (optional) * @slaves: slave control names (optional) * @suffix: suffix string to each slave name (optional) * @init_slave_vol: initialize slaves to unmute/0dB * @ctl_ret: store the vmaster kcontrol in return * * Create a virtual master control with the given name. The TLV data * must be either NULL or a valid data. * * @slaves is a NULL-terminated array of strings, each of which is a * slave control name. All controls with these names are assigned to * the new virtual master control. * * This function returns zero if successful or a negative error code. */ int __snd_hda_add_vmaster(struct hda_codec *codec, char *name, unsigned int *tlv, const char * const *slaves, const char *suffix, bool init_slave_vol, struct snd_kcontrol **ctl_ret) { struct snd_kcontrol *kctl; int err; if (ctl_ret) *ctl_ret = NULL; err = map_slaves(codec, slaves, suffix, check_slave_present, NULL); if (err != 1) { codec_dbg(codec, "No slave found for %s\n", name); return 0; } kctl = snd_ctl_make_virtual_master(name, tlv); if (!kctl) return -ENOMEM; err = snd_hda_ctl_add(codec, 0, kctl); if (err < 0) return err; err = map_slaves(codec, slaves, suffix, add_slave, kctl); if (err < 0) return err; /* init with master mute & zero volume */ put_kctl_with_value(kctl, 0); if (init_slave_vol) { struct slave_init_arg arg = { .codec = codec, .step = 0, }; snd_ctl_apply_vmaster_slaves(kctl, tlv ? init_slave_0dB : init_slave_unmute, &arg); } if (ctl_ret) *ctl_ret = kctl; return 0; } EXPORT_SYMBOL_GPL(__snd_hda_add_vmaster); /* * mute-LED control using vmaster */ static int vmaster_mute_mode_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { static const char * const texts[] = { "On", "Off", "Follow Master" }; return snd_ctl_enum_info(uinfo, 1, 3, texts); } 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 const struct snd_kcontrol_new vmaster_mute_mode = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Mute-LED Mode", .info = vmaster_mute_mode_info, .get = vmaster_mute_mode_get, .put = vmaster_mute_mode_put, }; /* meta hook to call each driver's vmaster hook */ static void vmaster_hook(void *private_data, int enabled) { struct hda_vmaster_mute_hook *hook = private_data; if (hook->mute_mode != HDA_VMUTE_FOLLOW_MASTER) enabled = hook->mute_mode; hook->hook(hook->codec, enabled); } /** * snd_hda_add_vmaster_hook - Add a vmaster hook for mute-LED * @codec: the HDA codec * @hook: the vmaster hook object * @expose_enum_ctl: flag to create an enum ctl * * Add a mute-LED hook with the given vmaster switch kctl. * When @expose_enum_ctl is set, "Mute-LED Mode" control is automatically * created and associated with the given hook. */ int snd_hda_add_vmaster_hook(struct hda_codec *codec, struct hda_vmaster_mute_hook *hook, bool expose_enum_ctl) { struct snd_kcontrol *kctl; if (!hook->hook || !hook->sw_kctl) return 0; hook->codec = codec; hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER; snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook); if (!expose_enum_ctl) return 0; kctl = snd_ctl_new1(&vmaster_mute_mode, hook); if (!kctl) return -ENOMEM; return snd_hda_ctl_add(codec, 0, kctl); } EXPORT_SYMBOL_GPL(snd_hda_add_vmaster_hook); /** * snd_hda_sync_vmaster_hook - Sync vmaster hook * @hook: the vmaster hook * * Call the hook with the current value for synchronization. * Should be called in init callback. */ void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook) { if (!hook->hook || !hook->codec) return; /* don't call vmaster hook in the destructor since it might have * been already destroyed */ if (hook->codec->bus->shutdown) return; snd_ctl_sync_vmaster_hook(hook->sw_kctl); } EXPORT_SYMBOL_GPL(snd_hda_sync_vmaster_hook); /** * snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch * @kcontrol: referred ctl element * @uinfo: pointer to get/store the data * * The control element is supposed to have the private_value field * set up via HDA_COMPOSE_AMP_VAL*() or related macros. */ int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { int chs = get_amp_channels(kcontrol); uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; uinfo->count = chs == 3 ? 2 : 1; uinfo->value.integer.min = 0; uinfo->value.integer.max = 1; return 0; } EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_info); /** * snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch * @kcontrol: ctl element * @ucontrol: pointer to get/store the data * * The control element is supposed to have the private_value field * set up via HDA_COMPOSE_AMP_VAL*() or related macros. */ int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); hda_nid_t nid = get_amp_nid(kcontrol); int chs = get_amp_channels(kcontrol); int dir = get_amp_direction(kcontrol); int idx = get_amp_index(kcontrol); long *valp = ucontrol->value.integer.value; if (chs & 1) *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & HDA_AMP_MUTE) ? 0 : 1; if (chs & 2) *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & HDA_AMP_MUTE) ? 0 : 1; return 0; } EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get); /** * snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch * @kcontrol: ctl element * @ucontrol: pointer to get/store the data * * The control element is supposed to have the private_value field * set up via HDA_COMPOSE_AMP_VAL*() or related macros. */ int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); hda_nid_t nid = get_amp_nid(kcontrol); int chs = get_amp_channels(kcontrol); int dir = get_amp_direction(kcontrol); int idx = get_amp_index(kcontrol); long *valp = ucontrol->value.integer.value; int change = 0; if (chs & 1) { change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx, HDA_AMP_MUTE, *valp ? 0 : HDA_AMP_MUTE); valp++; } if (chs & 2) change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx, HDA_AMP_MUTE, *valp ? 0 : HDA_AMP_MUTE); hda_call_check_power_status(codec, nid); return change; } EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put); /* * 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; if (WARN_ON(codec->spdif_out.used <= idx)) return -EINVAL; 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 (val & AC_DIG1_EMPHASIS) sbits |= IEC958_AES0_PRO_EMPHASIS_5015; } else { if (val & AC_DIG1_EMPHASIS) sbits |= IEC958_AES0_CON_EMPHASIS_5015; if (!(val & AC_DIG1_COPYRIGHT)) sbits |= IEC958_AES0_CON_NOT_COPYRIGHT; if (val & AC_DIG1_LEVEL) sbits |= (IEC958_AES1_CON_ORIGINAL << 8); sbits |= val & (0x7f << 8); } return sbits; } /* set digital convert verbs both for the given NID and its slaves */ static void set_dig_out(struct hda_codec *codec, hda_nid_t nid, int mask, int val) { const hda_nid_t *d; snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1, mask, val); d = codec->slave_dig_outs; if (!d) return; for (; *d; d++) snd_hdac_regmap_update(&codec->core, *d, AC_VERB_SET_DIGI_CONVERT_1, mask, val); } static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid, int dig1, int dig2) { unsigned int mask = 0; unsigned int val = 0; if (dig1 != -1) { mask |= 0xff; val = dig1; } if (dig2 != -1) { mask |= 0xff00; val |= dig2 << 8; } set_dig_out(codec, nid, mask, val); } 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; if (WARN_ON(codec->spdif_out.used <= idx)) return -EINVAL; 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; if (WARN_ON(codec->spdif_out.used <= idx)) return -EINVAL; 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; if (WARN_ON(codec->spdif_out.used <= idx)) return -EINVAL; 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 = 0; int val = 0; const int spdif_index = 16; struct hda_spdif_out *spdif; struct hda_bus *bus = codec->bus; if (bus->primary_dig_out_type == HDA_PCM_TYPE_HDMI && type == HDA_PCM_TYPE_SPDIF) { idx = spdif_index; } else if (bus->primary_dig_out_type == HDA_PCM_TYPE_SPDIF && type == HDA_PCM_TYPE_HDMI) { /* suppose a single SPDIF device */ for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) { kctl = find_mixer_ctl(codec, dig_mix->name, 0, 0); if (!kctl) break; kctl->id.index = spdif_index; } bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI; } if (!bus->primary_dig_out_type) bus->primary_dig_out_type = type; idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", idx); if (idx < 0) { codec_err(codec, "too many IEC958 outputs\n"); return -EBUSY; } spdif = snd_array_new(&codec->spdif_out); if (!spdif) return -ENOMEM; for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) { kctl = snd_ctl_new1(dig_mix, codec); if (!kctl) return -ENOMEM; kctl->id.index = idx; kctl->private_value = codec->spdif_out.used - 1; err = snd_hda_ctl_add(codec, associated_nid, kctl); if (err < 0) return err; } spdif->nid = cvt_nid; snd_hdac_regmap_read(&codec->core, cvt_nid, AC_VERB_GET_DIGI_CONVERT_1, &val); spdif->ctls = val; spdif->status = convert_to_spdif_status(spdif->ctls); return 0; } EXPORT_SYMBOL_GPL(snd_hda_create_dig_out_ctls); /** * snd_hda_spdif_out_of_nid - get the hda_spdif_out entry from the given NID * @codec: the HDA codec * @nid: widget NID * * call within spdif_mutex lock */ struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec, hda_nid_t nid) { struct hda_spdif_out *spdif; int i; snd_array_for_each(&codec->spdif_out, i, spdif) { if (spdif->nid == nid) return spdif; } return NULL; } EXPORT_SYMBOL_GPL(snd_hda_spdif_out_of_nid); /** * snd_hda_spdif_ctls_unassign - Unassign the given SPDIF ctl * @codec: the HDA codec * @idx: the SPDIF ctl index * * Unassign the widget from the given SPDIF control. */ void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx) { struct hda_spdif_out *spdif; if (WARN_ON(codec->spdif_out.used <= idx)) return; mutex_lock(&codec->spdif_mutex); spdif = snd_array_elem(&codec->spdif_out, idx); spdif->nid = (u16)-1; mutex_unlock(&codec->spdif_mutex); } EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_unassign); /** * snd_hda_spdif_ctls_assign - Assign the SPDIF controls to the given NID * @codec: the HDA codec * @idx: the SPDIF ctl idx * @nid: widget NID * * Assign the widget to the SPDIF control with the given index. */ void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid) { struct hda_spdif_out *spdif; unsigned short val; if (WARN_ON(codec->spdif_out.used <= idx)) return; 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_GPL(snd_hda_spdif_ctls_assign); /* * SPDIF sharing with analog output */ static int spdif_share_sw_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = mout->share_spdif; return 0; } 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 const struct snd_kcontrol_new spdif_share_sw = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "IEC958 Default PCM Playback Switch", .info = snd_ctl_boolean_mono_info, .get = spdif_share_sw_get, .put = spdif_share_sw_put, }; /** * snd_hda_create_spdif_share_sw - create Default PCM switch * @codec: the HDA codec * @mout: multi-out instance */ int snd_hda_create_spdif_share_sw(struct hda_codec *codec, struct hda_multi_out *mout) { struct snd_kcontrol *kctl; if (!mout->dig_out_nid) return 0; kctl = snd_ctl_new1(&spdif_share_sw, mout); if (!kctl) return -ENOMEM; /* ATTENTION: here mout is passed as private_data, instead of codec */ return snd_hda_ctl_add(codec, mout->dig_out_nid, kctl); } EXPORT_SYMBOL_GPL(snd_hda_create_spdif_share_sw); /* * SPDIF input */ #define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = codec->spdif_in_enable; return 0; } static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); hda_nid_t nid = kcontrol->private_value; unsigned int val = !!ucontrol->value.integer.value[0]; int change; mutex_lock(&codec->spdif_mutex); change = codec->spdif_in_enable != val; if (change) { codec->spdif_in_enable = val; snd_hdac_regmap_write(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1, val); } mutex_unlock(&codec->spdif_mutex); return change; } static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); hda_nid_t nid = kcontrol->private_value; unsigned int val; unsigned int sbits; snd_hdac_regmap_read(&codec->core, nid, AC_VERB_GET_DIGI_CONVERT_1, &val); sbits = convert_to_spdif_status(val); ucontrol->value.iec958.status[0] = sbits; ucontrol->value.iec958.status[1] = sbits >> 8; ucontrol->value.iec958.status[2] = sbits >> 16; ucontrol->value.iec958.status[3] = sbits >> 24; return 0; } static struct snd_kcontrol_new dig_in_ctls[] = { { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH), .info = snd_hda_spdif_in_switch_info, .get = snd_hda_spdif_in_switch_get, .put = snd_hda_spdif_in_switch_put, }, { .access = SNDRV_CTL_ELEM_ACCESS_READ, .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT), .info = snd_hda_spdif_mask_info, .get = snd_hda_spdif_in_status_get, }, { } /* end */ }; /** * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls * @codec: the HDA codec * @nid: audio in widget NID * * Creates controls related with the SPDIF input. * Called from each patch supporting the SPDIF in. * * Returns 0 if successful, or a negative error code. */ int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid) { int err; struct snd_kcontrol *kctl; struct snd_kcontrol_new *dig_mix; int idx; idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0); if (idx < 0) { codec_err(codec, "too many IEC958 inputs\n"); return -EBUSY; } for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) { kctl = snd_ctl_new1(dig_mix, codec); if (!kctl) return -ENOMEM; kctl->private_value = nid; err = snd_hda_ctl_add(codec, nid, kctl); if (err < 0) return err; } codec->spdif_in_enable = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT_1, 0) & AC_DIG1_ENABLE; return 0; } EXPORT_SYMBOL_GPL(snd_hda_create_spdif_in_ctls); /** * snd_hda_codec_set_power_to_all - Set the power state to all widgets * @codec: the HDA codec * @fg: function group (not used now) * @power_state: the power state to set (AC_PWRST_*) * * Set the given power state to all widgets that have the power control. * If the codec has power_filter set, it evaluates the power state and * filter out if it's unchanged as D3. */ void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg, unsigned int power_state) { hda_nid_t nid; for_each_hda_codec_node(nid, codec) { unsigned int wcaps = get_wcaps(codec, nid); unsigned int state = power_state; if (!(wcaps & AC_WCAP_POWER)) continue; if (codec->power_filter) { state = codec->power_filter(codec, nid, power_state); if (state != power_state && power_state == AC_PWRST_D3) continue; } snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE, state); } } EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all); /** * snd_hda_codec_eapd_power_filter - A power filter callback for EAPD * @codec: the HDA codec * @nid: widget NID * @power_state: power state to evalue * * Don't power down the widget if it controls eapd and EAPD_BTLENABLE is set. * This can be used a codec power_filter callback. */ unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec, hda_nid_t nid, unsigned int power_state) { if (nid == codec->core.afg || nid == codec->core.mfg) return power_state; if (power_state == AC_PWRST_D3 && get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_PIN && (snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) { int eapd = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_EAPD_BTLENABLE, 0); if (eapd & 0x02) return AC_PWRST_D0; } return power_state; } EXPORT_SYMBOL_GPL(snd_hda_codec_eapd_power_filter); /* * set power state of the codec, and return the power state */ static unsigned int hda_set_power_state(struct hda_codec *codec, unsigned int power_state) { hda_nid_t fg = codec->core.afg ? codec->core.afg : codec->core.mfg; int count; unsigned int state; int flags = 0; /* this delay seems necessary to avoid click noise at power-down */ if (power_state == AC_PWRST_D3) { if (codec->depop_delay < 0) msleep(codec_has_epss(codec) ? 10 : 100); else if (codec->depop_delay > 0) msleep(codec->depop_delay); flags = HDA_RW_NO_RESPONSE_FALLBACK; } /* repeat power states setting at most 10 times*/ for (count = 0; count < 10; count++) { if (codec->patch_ops.set_power_state) codec->patch_ops.set_power_state(codec, fg, power_state); else { state = power_state; if (codec->power_filter) state = codec->power_filter(codec, fg, state); if (state == power_state || power_state != AC_PWRST_D3) snd_hda_codec_read(codec, fg, flags, AC_VERB_SET_POWER_STATE, state); snd_hda_codec_set_power_to_all(codec, fg, power_state); } state = snd_hda_sync_power_state(codec, fg, power_state); if (!(state & AC_PWRST_ERROR)) break; } return state; } /* sync power states of all widgets; * this is called at the end of codec parsing */ static void sync_power_up_states(struct hda_codec *codec) { hda_nid_t nid; /* don't care if no filter is used */ if (!codec->power_filter) return; for_each_hda_codec_node(nid, codec) { unsigned int wcaps = get_wcaps(codec, nid); unsigned int target; if (!(wcaps & AC_WCAP_POWER)) continue; target = codec->power_filter(codec, nid, AC_PWRST_D0); if (target == AC_PWRST_D0) continue; if (!snd_hda_check_power_state(codec, nid, target)) snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE, target); } } #ifdef CONFIG_SND_HDA_RECONFIG /* execute additional init verbs */ static void hda_exec_init_verbs(struct hda_codec *codec) { if (codec->init_verbs.list) snd_hda_sequence_write(codec, codec->init_verbs.list); } #else static inline void hda_exec_init_verbs(struct hda_codec *codec) {} #endif #ifdef CONFIG_PM /* update the power on/off account with the current jiffies */ static void update_power_acct(struct hda_codec *codec, bool on) { unsigned long delta = jiffies - codec->power_jiffies; if (on) codec->power_on_acct += delta; else codec->power_off_acct += delta; codec->power_jiffies += delta; } void snd_hda_update_power_acct(struct hda_codec *codec) { update_power_acct(codec, hda_codec_is_power_on(codec)); } /* * call suspend and power-down; used both from PM and power-save * this function returns the power state in the end */ static unsigned int hda_call_codec_suspend(struct hda_codec *codec) { unsigned int state; snd_hdac_enter_pm(&codec->core); if (codec->patch_ops.suspend) codec->patch_ops.suspend(codec); hda_cleanup_all_streams(codec); state = hda_set_power_state(codec, AC_PWRST_D3); update_power_acct(codec, true); snd_hdac_leave_pm(&codec->core); return state; } /* * kick up codec; used both from PM and power-save */ static void hda_call_codec_resume(struct hda_codec *codec) { snd_hdac_enter_pm(&codec->core); if (codec->core.regmap) regcache_mark_dirty(codec->core.regmap); codec->power_jiffies = jiffies; hda_set_power_state(codec, AC_PWRST_D0); restore_shutup_pins(codec); hda_exec_init_verbs(codec); snd_hda_jack_set_dirty_all(codec); if (codec->patch_ops.resume) codec->patch_ops.resume(codec); else { if (codec->patch_ops.init) codec->patch_ops.init(codec); if (codec->core.regmap) regcache_sync(codec->core.regmap); } if (codec->jackpoll_interval) hda_jackpoll_work(&codec->jackpoll_work.work); else snd_hda_jack_report_sync(codec); snd_hdac_leave_pm(&codec->core); } static int hda_codec_runtime_suspend(struct device *dev) { struct hda_codec *codec = dev_to_hda_codec(dev); struct hda_pcm *pcm; unsigned int state; cancel_delayed_work_sync(&codec->jackpoll_work); list_for_each_entry(pcm, &codec->pcm_list_head, list) snd_pcm_suspend_all(pcm->pcm); state = hda_call_codec_suspend(codec); if (codec->link_down_at_suspend || (codec_has_clkstop(codec) && codec_has_epss(codec) && (state & AC_PWRST_CLK_STOP_OK))) snd_hdac_codec_link_down(&codec->core); codec_display_power(codec, false); return 0; } static int hda_codec_runtime_resume(struct device *dev) { struct hda_codec *codec = dev_to_hda_codec(dev); codec_display_power(codec, true); snd_hdac_codec_link_up(&codec->core); hda_call_codec_resume(codec); pm_runtime_mark_last_busy(dev); return 0; } #endif /* CONFIG_PM */ /* referred in hda_bind.c */ const struct dev_pm_ops hda_codec_driver_pm = { SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume) SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume, NULL) }; /* * add standard channel maps if not specified */ static int add_std_chmaps(struct hda_codec *codec) { struct hda_pcm *pcm; int str, err; list_for_each_entry(pcm, &codec->pcm_list_head, list) { for (str = 0; str < 2; str++) { struct hda_pcm_stream *hinfo = &pcm->stream[str]; struct snd_pcm_chmap *chmap; const struct snd_pcm_chmap_elem *elem; if (!pcm->pcm || pcm->own_chmap || !hinfo->substreams) continue; elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps; err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem, hinfo->channels_max, 0, &chmap); if (err < 0) return err; chmap->channel_mask = SND_PCM_CHMAP_MASK_2468; } } return 0; } /* default channel maps for 2.1 speakers; * since HD-audio supports only stereo, odd number channels are omitted */ const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = { { .channels = 2, .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, { .channels = 4, .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } }, { } }; EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps); int snd_hda_codec_build_controls(struct hda_codec *codec) { int err = 0; hda_exec_init_verbs(codec); /* continue to initialize... */ if (codec->patch_ops.init) err = codec->patch_ops.init(codec); if (!err && codec->patch_ops.build_controls) err = codec->patch_ops.build_controls(codec); if (err < 0) return err; /* we create chmaps here instead of build_pcms */ err = add_std_chmaps(codec); if (err < 0) return err; if (codec->jackpoll_interval) hda_jackpoll_work(&codec->jackpoll_work.work); else snd_hda_jack_report_sync(codec); /* call at the last init point */ sync_power_up_states(codec); return 0; } EXPORT_SYMBOL_GPL(snd_hda_codec_build_controls); /* * 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 */ /** * snd_hda_codec_prepare - Prepare a stream * @codec: the HDA codec * @hinfo: PCM information * @stream: stream tag to assign * @format: format id to assign * @substream: PCM substream to assign * * Calls the prepare callback set by the codec with the given arguments. * Clean up the inactive streams when successful. */ int snd_hda_codec_prepare(struct hda_codec *codec, struct hda_pcm_stream *hinfo, unsigned int stream, unsigned int format, struct snd_pcm_substream *substream) { int ret; mutex_lock(&codec->bus->prepare_mutex); if (hinfo->ops.prepare) ret = hinfo->ops.prepare(hinfo, codec, stream, format, substream); else ret = -ENODEV; if (ret >= 0) purify_inactive_streams(codec); mutex_unlock(&codec->bus->prepare_mutex); return ret; } EXPORT_SYMBOL_GPL(snd_hda_codec_prepare); /** * snd_hda_codec_cleanup - Prepare a stream * @codec: the HDA codec * @hinfo: PCM information * @substream: PCM substream * * Calls the cleanup callback set by the codec with the given arguments. */ void snd_hda_codec_cleanup(struct hda_codec *codec, struct hda_pcm_stream *hinfo, struct snd_pcm_substream *substream) { mutex_lock(&codec->bus->prepare_mutex); if (hinfo->ops.cleanup) hinfo->ops.cleanup(hinfo, codec, substream); mutex_unlock(&codec->bus->prepare_mutex); } EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup); /* global */ const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = { "Audio", "SPDIF", "HDMI", "Modem" }; /* * get the empty PCM device number to assign */ static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type) { /* audio device indices; not linear to keep compatibility */ /* assigned to static slots up to dev#10; if more needed, assign * the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y) */ static int audio_idx[HDA_PCM_NTYPES][5] = { [HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 }, [HDA_PCM_TYPE_SPDIF] = { 1, -1 }, [HDA_PCM_TYPE_HDMI] = { 3, 7, 8, 9, -1 }, [HDA_PCM_TYPE_MODEM] = { 6, -1 }, }; int i; if (type >= HDA_PCM_NTYPES) { dev_err(bus->card->dev, "Invalid PCM type %d\n", type); return -EINVAL; } for (i = 0; audio_idx[type][i] >= 0; i++) { #ifndef CONFIG_SND_DYNAMIC_MINORS if (audio_idx[type][i] >= 8) break; #endif if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits)) return audio_idx[type][i]; } #ifdef CONFIG_SND_DYNAMIC_MINORS /* non-fixed slots starting from 10 */ for (i = 10; i < 32; i++) { if (!test_and_set_bit(i, bus->pcm_dev_bits)) return i; } #endif dev_warn(bus->card->dev, "Too many %s devices\n", snd_hda_pcm_type_name[type]); #ifndef CONFIG_SND_DYNAMIC_MINORS dev_warn(bus->card->dev, "Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y\n"); #endif return -EAGAIN; } /* call build_pcms ops of the given codec and set up the default parameters */ int snd_hda_codec_parse_pcms(struct hda_codec *codec) { struct hda_pcm *cpcm; int err; if (!list_empty(&codec->pcm_list_head)) return 0; /* already parsed */ if (!codec->patch_ops.build_pcms) return 0; err = codec->patch_ops.build_pcms(codec); if (err < 0) { codec_err(codec, "cannot build PCMs for #%d (error %d)\n", codec->core.addr, err); return err; } list_for_each_entry(cpcm, &codec->pcm_list_head, list) { int stream; for (stream = 0; stream < 2; stream++) { struct hda_pcm_stream *info = &cpcm->stream[stream]; if (!info->substreams) continue; err = set_pcm_default_values(codec, info); if (err < 0) { codec_warn(codec, "fail to setup default for PCM %s\n", cpcm->name); return err; } } } return 0; } EXPORT_SYMBOL_GPL(snd_hda_codec_parse_pcms); /* assign all PCMs of the given codec */ int snd_hda_codec_build_pcms(struct hda_codec *codec) { struct hda_bus *bus = codec->bus; struct hda_pcm *cpcm; int dev, err; err = snd_hda_codec_parse_pcms(codec); if (err < 0) return err; /* attach a new PCM streams */ list_for_each_entry(cpcm, &codec->pcm_list_head, list) { if (cpcm->pcm) continue; /* already attached */ if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams) continue; /* no substreams assigned */ dev = get_empty_pcm_device(bus, cpcm->pcm_type); if (dev < 0) { cpcm->device = SNDRV_PCM_INVALID_DEVICE; continue; /* no fatal error */ } cpcm->device = dev; err = snd_hda_attach_pcm_stream(bus, codec, cpcm); if (err < 0) { codec_err(codec, "cannot attach PCM stream %d for codec #%d\n", dev, codec->core.addr); continue; /* no fatal error */ } } return 0; } /** * 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 == (__force snd_ctl_elem_iface_t)-1) continue; /* skip this codec private value */ for (;;) { kctl = snd_ctl_new1(knew, codec); if (!kctl) return -ENOMEM; if (addr > 0) kctl->id.device = addr; if (idx > 0) kctl->id.index = idx; err = snd_hda_ctl_add(codec, 0, kctl); if (!err) break; /* try first with another device index corresponding to * the codec addr; if it still fails (or it's the * primary codec), then try another control index */ if (!addr && codec->core.addr) addr = codec->core.addr; else if (!idx && !knew->index) { idx = find_empty_mixer_ctl_idx(codec, knew->name, 0); if (idx <= 0) return err; } else return err; } } return 0; } EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls); #ifdef CONFIG_PM static void codec_set_power_save(struct hda_codec *codec, int delay) { struct device *dev = hda_codec_dev(codec); if (delay == 0 && codec->auto_runtime_pm) delay = 3000; if (delay > 0) { pm_runtime_set_autosuspend_delay(dev, delay); pm_runtime_use_autosuspend(dev); pm_runtime_allow(dev); if (!pm_runtime_suspended(dev)) pm_runtime_mark_last_busy(dev); } else { pm_runtime_dont_use_autosuspend(dev); pm_runtime_forbid(dev); } } /** * snd_hda_set_power_save - reprogram autosuspend for the given delay * @bus: HD-audio bus * @delay: autosuspend delay in msec, 0 = off * * Synchronize the runtime PM autosuspend state from the power_save option. */ void snd_hda_set_power_save(struct hda_bus *bus, int delay) { struct hda_codec *c; list_for_each_codec(c, bus) codec_set_power_save(c, delay); } EXPORT_SYMBOL_GPL(snd_hda_set_power_save); /** * snd_hda_check_amp_list_power - Check the amp list and update the power * @codec: HD-audio codec * @check: the object containing an AMP list and the status * @nid: NID to check / update * * Check whether the given NID is in the amp list. If it's in the list, * check the current AMP status, and update the the power-status according * to the mute status. * * This function is supposed to be set or called from the check_power_status * patch ops. */ int snd_hda_check_amp_list_power(struct hda_codec *codec, struct hda_loopback_check *check, hda_nid_t nid) { const struct hda_amp_list *p; int ch, v; if (!check->amplist) return 0; for (p = check->amplist; p->nid; p++) { if (p->nid == nid) break; } if (!p->nid) return 0; /* nothing changed */ for (p = check->amplist; p->nid; p++) { for (ch = 0; ch < 2; ch++) { v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir, p->idx); if (!(v & HDA_AMP_MUTE) && v > 0) { if (!check->power_on) { check->power_on = 1; snd_hda_power_up_pm(codec); } return 1; } } } if (check->power_on) { check->power_on = 0; snd_hda_power_down_pm(codec); } return 0; } EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power); #endif /* * input MUX helper */ /** * snd_hda_input_mux_info_info - Info callback helper for the input-mux enum * @imux: imux helper object * @uinfo: pointer to get/store the data */ int snd_hda_input_mux_info(const struct hda_input_mux *imux, struct snd_ctl_elem_info *uinfo) { unsigned int index; uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; uinfo->count = 1; uinfo->value.enumerated.items = imux->num_items; if (!imux->num_items) return 0; index = uinfo->value.enumerated.item; if (index >= imux->num_items) index = imux->num_items - 1; strcpy(uinfo->value.enumerated.name, imux->items[index].label); return 0; } EXPORT_SYMBOL_GPL(snd_hda_input_mux_info); /** * snd_hda_input_mux_info_put - Put callback helper for the input-mux enum * @codec: the HDA codec * @imux: imux helper object * @ucontrol: pointer to get/store the data * @nid: input mux NID * @cur_val: pointer to get/store the current imux value */ int snd_hda_input_mux_put(struct hda_codec *codec, const struct hda_input_mux *imux, struct snd_ctl_elem_value *ucontrol, hda_nid_t nid, unsigned int *cur_val) { unsigned int idx; if (!imux->num_items) return 0; idx = ucontrol->value.enumerated.item[0]; if (idx >= imux->num_items) idx = imux->num_items - 1; if (*cur_val == idx) return 0; snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL, imux->items[idx].index); *cur_val = idx; return 1; } EXPORT_SYMBOL_GPL(snd_hda_input_mux_put); /** * snd_hda_enum_helper_info - Helper for simple enum ctls * @kcontrol: ctl element * @uinfo: pointer to get/store the data * @num_items: number of enum items * @texts: enum item string array * * process kcontrol info callback of a simple string enum array * when @num_items is 0 or @texts is NULL, assume a boolean enum array */ int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo, int num_items, const char * const *texts) { static const char * const texts_default[] = { "Disabled", "Enabled" }; if (!texts || !num_items) { num_items = 2; texts = texts_default; } return snd_ctl_enum_info(uinfo, 1, num_items, texts); } EXPORT_SYMBOL_GPL(snd_hda_enum_helper_info); /* * Multi-channel / digital-out PCM helper functions */ /* setup SPDIF output stream */ static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid, unsigned int stream_tag, unsigned int format) { struct hda_spdif_out *spdif; unsigned int curr_fmt; bool reset; spdif = snd_hda_spdif_out_of_nid(codec, nid); /* Add sanity check to pass klockwork check. * This should never happen. */ if (WARN_ON(spdif == NULL)) return; 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_multi_out_dig_open - open the digital out in the exclusive mode * @codec: the HDA codec * @mout: hda_multi_out object */ int snd_hda_multi_out_dig_open(struct hda_codec *codec, struct hda_multi_out *mout) { mutex_lock(&codec->spdif_mutex); if (mout->dig_out_used == HDA_DIG_ANALOG_DUP) /* already opened as analog dup; reset it once */ cleanup_dig_out_stream(codec, mout->dig_out_nid); mout->dig_out_used = HDA_DIG_EXCLUSIVE; mutex_unlock(&codec->spdif_mutex); return 0; } EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_open); /** * snd_hda_multi_out_dig_prepare - prepare the digital out stream * @codec: the HDA codec * @mout: hda_multi_out object * @stream_tag: stream tag to assign * @format: format id to assign * @substream: PCM substream to assign */ int snd_hda_multi_out_dig_prepare(struct hda_codec *codec, struct hda_multi_out *mout, unsigned int stream_tag, unsigned int format, struct snd_pcm_substream *substream) { mutex_lock(&codec->spdif_mutex); setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format); mutex_unlock(&codec->spdif_mutex); return 0; } EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_prepare); /** * snd_hda_multi_out_dig_cleanup - clean-up the digital out stream * @codec: the HDA codec * @mout: hda_multi_out object */ int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec, struct hda_multi_out *mout) { mutex_lock(&codec->spdif_mutex); cleanup_dig_out_stream(codec, mout->dig_out_nid); mutex_unlock(&codec->spdif_mutex); return 0; } EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_cleanup); /** * snd_hda_multi_out_dig_close - release the digital out stream * @codec: the HDA codec * @mout: hda_multi_out object */ int snd_hda_multi_out_dig_close(struct hda_codec *codec, struct hda_multi_out *mout) { mutex_lock(&codec->spdif_mutex); mout->dig_out_used = 0; mutex_unlock(&codec->spdif_mutex); return 0; } EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_close); /** * snd_hda_multi_out_analog_open - open analog outputs * @codec: the HDA codec * @mout: hda_multi_out object * @substream: PCM substream to assign * @hinfo: PCM information to assign * * Open analog outputs and set up the hw-constraints. * If the digital outputs can be opened as slave, open the digital * outputs, too. */ int snd_hda_multi_out_analog_open(struct hda_codec *codec, struct hda_multi_out *mout, struct snd_pcm_substream *substream, struct hda_pcm_stream *hinfo) { struct snd_pcm_runtime *runtime = substream->runtime; runtime->hw.channels_max = mout->max_channels; if (mout->dig_out_nid) { if (!mout->analog_rates) { mout->analog_rates = hinfo->rates; mout->analog_formats = hinfo->formats; mout->analog_maxbps = hinfo->maxbps; } else { runtime->hw.rates = mout->analog_rates; runtime->hw.formats = mout->analog_formats; hinfo->maxbps = mout->analog_maxbps; } if (!mout->spdif_rates) { snd_hda_query_supported_pcm(codec, mout->dig_out_nid, &mout->spdif_rates, &mout->spdif_formats, &mout->spdif_maxbps); } mutex_lock(&codec->spdif_mutex); if (mout->share_spdif) { if ((runtime->hw.rates & mout->spdif_rates) && (runtime->hw.formats & mout->spdif_formats)) { runtime->hw.rates &= mout->spdif_rates; runtime->hw.formats &= mout->spdif_formats; if (mout->spdif_maxbps < hinfo->maxbps) hinfo->maxbps = mout->spdif_maxbps; } else { mout->share_spdif = 0; /* FIXME: need notify? */ } } mutex_unlock(&codec->spdif_mutex); } return snd_pcm_hw_constraint_step(substream->runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 2); } EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_open); /** * snd_hda_multi_out_analog_prepare - Preapre the analog outputs. * @codec: the HDA codec * @mout: hda_multi_out object * @stream_tag: stream tag to assign * @format: format id to assign * @substream: PCM substream to assign * * Set up the i/o for analog out. * When the digital out is available, copy the front out to digital out, too. */ int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_out *mout, unsigned int stream_tag, unsigned int format, struct snd_pcm_substream *substream) { const hda_nid_t *nids = mout->dac_nids; int chs = substream->runtime->channels; struct hda_spdif_out *spdif; int i; mutex_lock(&codec->spdif_mutex); spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid); if (mout->dig_out_nid && mout->share_spdif && mout->dig_out_used != HDA_DIG_EXCLUSIVE) { if (chs == 2 && spdif != NULL && snd_hda_is_supported_format(codec, mout->dig_out_nid, format) && !(spdif->status & IEC958_AES0_NONAUDIO)) { mout->dig_out_used = HDA_DIG_ANALOG_DUP; setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format); } else { mout->dig_out_used = 0; cleanup_dig_out_stream(codec, mout->dig_out_nid); } } mutex_unlock(&codec->spdif_mutex); /* front */ snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 0, format); if (!mout->no_share_stream && mout->hp_nid && mout->hp_nid != nids[HDA_FRONT]) /* headphone out will just decode front left/right (stereo) */ snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, 0, format); /* extra outputs copied from front */ for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++) if (!mout->no_share_stream && mout->hp_out_nid[i]) snd_hda_codec_setup_stream(codec, mout->hp_out_nid[i], stream_tag, 0, format); /* surrounds */ for (i = 1; i < mout->num_dacs; i++) { if (chs >= (i + 1) * 2) /* independent out */ snd_hda_codec_setup_stream(codec, nids[i], stream_tag, i * 2, format); else if (!mout->no_share_stream) /* copy front */ snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 0, format); } /* extra surrounds */ for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) { int ch = 0; if (!mout->extra_out_nid[i]) break; if (chs >= (i + 1) * 2) ch = i * 2; else if (!mout->no_share_stream) break; snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i], stream_tag, ch, format); } return 0; } EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_prepare); /** * snd_hda_multi_out_analog_cleanup - clean up the setting for analog out * @codec: the HDA codec * @mout: hda_multi_out object */ int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, struct hda_multi_out *mout) { const hda_nid_t *nids = mout->dac_nids; int i; for (i = 0; i < mout->num_dacs; i++) snd_hda_codec_cleanup_stream(codec, nids[i]); if (mout->hp_nid) snd_hda_codec_cleanup_stream(codec, mout->hp_nid); for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++) if (mout->hp_out_nid[i]) snd_hda_codec_cleanup_stream(codec, mout->hp_out_nid[i]); for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) if (mout->extra_out_nid[i]) snd_hda_codec_cleanup_stream(codec, mout->extra_out_nid[i]); mutex_lock(&codec->spdif_mutex); if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) { cleanup_dig_out_stream(codec, mout->dig_out_nid); mout->dig_out_used = 0; } mutex_unlock(&codec->spdif_mutex); return 0; } EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_cleanup); /** * snd_hda_get_default_vref - Get the default (mic) VREF pin bits * @codec: the HDA codec * @pin: referred pin NID * * Guess the suitable VREF pin bits to be set as the pin-control value. * Note: the function doesn't set the AC_PINCTL_IN_EN bit. */ unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin) { unsigned int pincap; unsigned int oldval; oldval = snd_hda_codec_read(codec, pin, 0, AC_VERB_GET_PIN_WIDGET_CONTROL, 0); pincap = snd_hda_query_pin_caps(codec, pin); pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT; /* Exception: if the default pin setup is vref50, we give it priority */ if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50) return AC_PINCTL_VREF_80; else if (pincap & AC_PINCAP_VREF_50) return AC_PINCTL_VREF_50; else if (pincap & AC_PINCAP_VREF_100) return AC_PINCTL_VREF_100; else if (pincap & AC_PINCAP_VREF_GRD) return AC_PINCTL_VREF_GRD; return AC_PINCTL_VREF_HIZ; } EXPORT_SYMBOL_GPL(snd_hda_get_default_vref); /** * snd_hda_correct_pin_ctl - correct the pin ctl value for matching with the pin cap * @codec: the HDA codec * @pin: referred pin NID * @val: pin ctl value to audit */ unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec, hda_nid_t pin, unsigned int val) { static unsigned int cap_lists[][2] = { { AC_PINCTL_VREF_100, AC_PINCAP_VREF_100 }, { AC_PINCTL_VREF_80, AC_PINCAP_VREF_80 }, { AC_PINCTL_VREF_50, AC_PINCAP_VREF_50 }, { AC_PINCTL_VREF_GRD, AC_PINCAP_VREF_GRD }, }; unsigned int cap; if (!val) return 0; cap = snd_hda_query_pin_caps(codec, pin); if (!cap) return val; /* don't know what to do... */ if (val & AC_PINCTL_OUT_EN) { if (!(cap & AC_PINCAP_OUT)) val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN); else if ((val & AC_PINCTL_HP_EN) && !(cap & AC_PINCAP_HP_DRV)) val &= ~AC_PINCTL_HP_EN; } if (val & AC_PINCTL_IN_EN) { if (!(cap & AC_PINCAP_IN)) val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN); else { unsigned int vcap, vref; int i; vcap = (cap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT; vref = val & AC_PINCTL_VREFEN; for (i = 0; i < ARRAY_SIZE(cap_lists); i++) { if (vref == cap_lists[i][0] && !(vcap & cap_lists[i][1])) { if (i == ARRAY_SIZE(cap_lists) - 1) vref = AC_PINCTL_VREF_HIZ; else vref = cap_lists[i + 1][0]; } } val &= ~AC_PINCTL_VREFEN; val |= vref; } } return val; } EXPORT_SYMBOL_GPL(snd_hda_correct_pin_ctl); /** * _snd_hda_pin_ctl - Helper to set pin ctl value * @codec: the HDA codec * @pin: referred pin NID * @val: pin control value to set * @cached: access over codec pinctl cache or direct write * * This function is a helper to set a pin ctl value more safely. * It corrects the pin ctl value via snd_hda_correct_pin_ctl(), stores the * value in pin target array via snd_hda_codec_set_pin_target(), then * actually writes the value via either snd_hda_codec_write_cache() or * snd_hda_codec_write() depending on @cached flag. */ int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, unsigned int val, bool cached) { val = snd_hda_correct_pin_ctl(codec, pin, val); snd_hda_codec_set_pin_target(codec, pin, val); if (cached) return snd_hda_codec_write_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_GPL(_snd_hda_set_pin_ctl); /** * snd_hda_add_imux_item - Add an item to input_mux * @codec: the HDA codec * @imux: imux helper object * @label: the name of imux item to assign * @index: index number of imux item to assign * @type_idx: pointer to store the resultant label index * * When the same label is used already in the existing items, the number * suffix is appended to the label. This label index number is stored * to type_idx when non-NULL pointer is given. */ int snd_hda_add_imux_item(struct hda_codec *codec, struct hda_input_mux *imux, const char *label, int index, int *type_idx) { int i, label_idx = 0; if (imux->num_items >= HDA_MAX_NUM_INPUTS) { codec_err(codec, "hda_codec: Too many imux items!\n"); return -EINVAL; } for (i = 0; i < imux->num_items; i++) { if (!strncmp(label, imux->items[i].label, strlen(label))) label_idx++; } if (type_idx) *type_idx = label_idx; if (label_idx > 0) snprintf(imux->items[imux->num_items].label, sizeof(imux->items[imux->num_items].label), "%s %d", label, label_idx); else strlcpy(imux->items[imux->num_items].label, label, sizeof(imux->items[imux->num_items].label)); imux->items[imux->num_items].index = index; imux->num_items++; return 0; } EXPORT_SYMBOL_GPL(snd_hda_add_imux_item); /** * snd_hda_bus_reset_codecs - Reset the bus * @bus: HD-audio bus */ void snd_hda_bus_reset_codecs(struct hda_bus *bus) { struct hda_codec *codec; list_for_each_codec(codec, bus) { /* FIXME: maybe a better way needed for forced reset */ if (current_work() != &codec->jackpoll_work.work) cancel_delayed_work_sync(&codec->jackpoll_work); #ifdef CONFIG_PM if (hda_codec_is_power_on(codec)) { hda_call_codec_suspend(codec); hda_call_codec_resume(codec); } #endif } } /** * 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_GPL(snd_print_pcm_bits); MODULE_DESCRIPTION("HDA codec core"); MODULE_LICENSE("GPL");
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