diff options
Diffstat (limited to 'sound/pci/hda/hda_codec.c')
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 4061 |
1 files changed, 4061 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c new file mode 100644 index 000000000..fc4a64a83 --- /dev/null +++ b/sound/pci/hda/hda_codec.c @@ -0,0 +1,4061 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Universal Interface for Intel High Definition Audio Codec + * + * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de> + */ + +#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[]; +}; + +/* 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(struct_size(p, conns, len), 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); + + /* for non-polling trigger: we need nothing if already powered on */ + if (!codec->jackpoll_interval && snd_hdac_is_power_on(&codec->core)) + return; + + /* the power-up/down sequence triggers the runtime resume */ + snd_hda_power_up_pm(codec); + /* update jacks manually if polling is required, too */ + if (codec->jackpoll_interval) { + snd_hda_jack_set_dirty_all(codec); + snd_hda_jack_poll_all(codec); + } + snd_hda_power_down_pm(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->follower_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); + codec->configured = 0; +} +EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup_for_unbind); + +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))) { + 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_free(struct snd_device *device) +{ + struct hda_codec *codec = device->device_data; + + codec->in_freeing = 1; + /* + * snd_hda_codec_device_new() is used by legacy HDA and ASoC driver. + * We can't unregister ASoC device since it will be unregistered in + * snd_hdac_ext_bus_device_remove(). + */ + if (codec->core.type == HDA_DEV_LEGACY) + snd_hdac_device_unregister(&codec->core); + codec_display_power(codec, false); + + /* + * In the case of ASoC HD-audio bus, the device refcount is released in + * snd_hdac_ext_bus_device_remove() explicitly. + */ + if (codec->core.type == HDA_DEV_LEGACY) + 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); + + /* + * In the case of ASoC HD-audio, hda_codec is device managed. + * It will be freed when the ASoC device is removed. + */ + if (codec->core.type == HDA_DEV_LEGACY) + 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 + * @card: card for this codec + * @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 const struct snd_device_ops dev_ops = { + .dev_register = snd_hda_codec_dev_register, + .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); + codec->core.dev.power.power_state = PMSG_ON; + + 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; + + /* PM runtime needs to be enabled later after binding codec */ + pm_runtime_forbid(&codec->core.dev); + + 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); + 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); + +static unsigned int encode_amp(struct hda_codec *codec, hda_nid_t nid, + int ch, int dir, int idx) +{ + 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 cmd; +} + +/** + * 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 = encode_amp(codec, nid, ch, dir, idx); + + 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) +{ + unsigned int cmd = encode_amp(codec, nid, ch, dir, idx); + + if (!codec->core.regmap) + return -EINVAL; + return snd_hdac_regmap_update_raw_once(&codec->core, cmd, 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; + + down_write(&codec->card->controls_rwsem); + for (i = 0; i < codec->mixers.used; i++) + snd_ctl_remove(codec->card, items[i].kctl); + up_write(&codec->card->controls_rwsem); + 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 */ + device_release_driver(hda_codec_dev(codec)); + + /* allow device access again */ + snd_hda_unlock_devices(bus); + return 0; +} + +typedef int (*map_follower_func_t)(struct hda_codec *, void *, struct snd_kcontrol *); + +/* apply the function to all matching follower ctls in the mixer list */ +static int map_followers(struct hda_codec *codec, const char * const *followers, + const char *suffix, map_follower_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 = followers; *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_follower_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 follower_init_arg { + struct hda_codec *codec; + int step; +}; + +/* initialize the follower volume with 0dB via snd_ctl_apply_vmaster_followers() */ +static int init_follower_0dB(struct snd_kcontrol *follower, + struct snd_kcontrol *kctl, + void *_arg) +{ + struct follower_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 follower %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 follower (%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(follower, val); + return val; + } + + return 0; +} + +/* unmute the follower via snd_ctl_apply_vmaster_followers() */ +static int init_follower_unmute(struct snd_kcontrol *follower, + struct snd_kcontrol *kctl, + void *_arg) +{ + return put_kctl_with_value(follower, 1); +} + +static int add_follower(struct hda_codec *codec, + void *data, struct snd_kcontrol *follower) +{ + return snd_ctl_add_follower(data, follower); +} + +/** + * __snd_hda_add_vmaster - create a virtual master control and add followers + * @codec: HD-audio codec + * @name: vmaster control name + * @tlv: TLV data (optional) + * @followers: follower control names (optional) + * @suffix: suffix string to each follower name (optional) + * @init_follower_vol: initialize followers 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. + * + * @followers is a NULL-terminated array of strings, each of which is a + * follower 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 *followers, + const char *suffix, bool init_follower_vol, + struct snd_kcontrol **ctl_ret) +{ + struct snd_kcontrol *kctl; + int err; + + if (ctl_ret) + *ctl_ret = NULL; + + err = map_followers(codec, followers, suffix, check_follower_present, NULL); + if (err != 1) { + codec_dbg(codec, "No follower 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_followers(codec, followers, suffix, add_follower, kctl); + if (err < 0) + return err; + + /* init with master mute & zero volume */ + put_kctl_with_value(kctl, 0); + if (init_follower_vol) { + struct follower_init_arg arg = { + .codec = codec, + .step = 0, + }; + snd_ctl_apply_vmaster_followers(kctl, + tlv ? init_follower_0dB : init_follower_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 followers */ +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->follower_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 const 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; + const 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 const 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; + const 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); + snd_hda_regmap_sync(codec); + } + + if (codec->jackpoll_interval) + hda_jackpoll_work(&codec->jackpoll_work.work); + else + snd_hda_jack_report_sync(codec); + codec->core.dev.power.power_state = PMSG_ON; + snd_hdac_leave_pm(&codec->core); +} + +static int hda_codec_runtime_suspend(struct device *dev) +{ + struct hda_codec *codec = dev_to_hda_codec(dev); + unsigned int state; + + /* Nothing to do if card registration fails and the component driver never probes */ + if (!codec->card) + return 0; + + cancel_delayed_work_sync(&codec->jackpoll_work); + 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); + + /* Nothing to do if card registration fails and the component driver never probes */ + if (!codec->card) + return 0; + + 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 */ + +#ifdef CONFIG_PM_SLEEP +static int hda_codec_pm_prepare(struct device *dev) +{ + dev->power.power_state = PMSG_SUSPEND; + return pm_runtime_suspended(dev); +} + +static void hda_codec_pm_complete(struct device *dev) +{ + struct hda_codec *codec = dev_to_hda_codec(dev); + + /* If no other pm-functions are called between prepare() and complete() */ + if (dev->power.power_state.event == PM_EVENT_SUSPEND) + dev->power.power_state = PMSG_RESUME; + + if (pm_runtime_suspended(dev) && (codec->jackpoll_interval || + hda_codec_need_resume(codec) || codec->forced_resume)) + pm_request_resume(dev); +} + +static int hda_codec_pm_suspend(struct device *dev) +{ + dev->power.power_state = PMSG_SUSPEND; + return pm_runtime_force_suspend(dev); +} + +static int hda_codec_pm_resume(struct device *dev) +{ + dev->power.power_state = PMSG_RESUME; + return pm_runtime_force_resume(dev); +} + +static int hda_codec_pm_freeze(struct device *dev) +{ + dev->power.power_state = PMSG_FREEZE; + return pm_runtime_force_suspend(dev); +} + +static int hda_codec_pm_thaw(struct device *dev) +{ + dev->power.power_state = PMSG_THAW; + return pm_runtime_force_resume(dev); +} + +static int hda_codec_pm_restore(struct device *dev) +{ + dev->power.power_state = PMSG_RESTORE; + return pm_runtime_force_resume(dev); +} +#endif /* CONFIG_PM_SLEEP */ + +/* referred in hda_bind.c */ +const struct dev_pm_ops hda_codec_driver_pm = { +#ifdef CONFIG_PM_SLEEP + .prepare = hda_codec_pm_prepare, + .complete = hda_codec_pm_complete, + .suspend = hda_codec_pm_suspend, + .resume = hda_codec_pm_resume, + .freeze = hda_codec_pm_freeze, + .thaw = hda_codec_pm_thaw, + .poweroff = hda_codec_pm_suspend, + .restore = hda_codec_pm_restore, +#endif /* CONFIG_PM_SLEEP */ + 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 - Clean up stream resources + * @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 const 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 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->follower_dig_outs) { + const hda_nid_t *d; + for (d = codec->follower_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->follower_dig_outs) { + const hda_nid_t *d; + for (d = codec->follower_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 follower, 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 const 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 const 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 += scnprintf(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"); |