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Diffstat (limited to 'sound/pci/hda/hda_bind.c')
-rw-r--r--sound/pci/hda/hda_bind.c343
1 files changed, 0 insertions, 343 deletions
diff --git a/sound/pci/hda/hda_bind.c b/sound/pci/hda/hda_bind.c
deleted file mode 100644
index df8f88beddd0..000000000000
--- a/sound/pci/hda/hda_bind.c
+++ /dev/null
@@ -1,343 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * HD-audio codec driver binding
- * Copyright (c) Takashi Iwai <tiwai@suse.de>
- */
-
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/mutex.h>
-#include <linux/module.h>
-#include <linux/export.h>
-#include <linux/pm.h>
-#include <sound/core.h>
-#include <sound/hda_codec.h>
-#include "hda_local.h"
-#include "hda_jack.h"
-
-/*
- * find a matching codec id
- */
-static int hda_codec_match(struct hdac_device *dev, const struct hdac_driver *drv)
-{
- struct hda_codec *codec = container_of(dev, struct hda_codec, core);
- const struct hda_codec_driver *driver =
- container_of(drv, struct hda_codec_driver, core);
- const struct hda_device_id *list;
- /* check probe_id instead of vendor_id if set */
- u32 id = codec->probe_id ? codec->probe_id : codec->core.vendor_id;
- u32 rev_id = codec->core.revision_id;
-
- for (list = driver->id; list->vendor_id; list++) {
- if (list->vendor_id == id &&
- (!list->rev_id || list->rev_id == rev_id)) {
- codec->preset = list;
- return 1;
- }
- }
- return 0;
-}
-
-/* process an unsolicited event */
-static void hda_codec_unsol_event(struct hdac_device *dev, unsigned int ev)
-{
- struct hda_codec *codec = container_of(dev, struct hda_codec, core);
-
- /* ignore unsol events during shutdown */
- if (codec->card->shutdown || codec->bus->shutdown)
- return;
-
- /* ignore unsol events during system suspend/resume */
- if (codec->core.dev.power.power_state.event != PM_EVENT_ON)
- return;
-
- if (codec->patch_ops.unsol_event)
- codec->patch_ops.unsol_event(codec, ev);
-}
-
-/**
- * snd_hda_codec_set_name - set the codec name
- * @codec: the HDA codec
- * @name: name string to set
- */
-int snd_hda_codec_set_name(struct hda_codec *codec, const char *name)
-{
- int err;
-
- if (!name)
- return 0;
- err = snd_hdac_device_set_chip_name(&codec->core, name);
- if (err < 0)
- return err;
-
- /* update the mixer name */
- if (!*codec->card->mixername ||
- codec->bus->mixer_assigned >= codec->core.addr) {
- snprintf(codec->card->mixername,
- sizeof(codec->card->mixername), "%s %s",
- codec->core.vendor_name, codec->core.chip_name);
- codec->bus->mixer_assigned = codec->core.addr;
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hda_codec_set_name);
-
-static int hda_codec_driver_probe(struct device *dev)
-{
- struct hda_codec *codec = dev_to_hda_codec(dev);
- struct module *owner = dev->driver->owner;
- hda_codec_patch_t patch;
- int err;
-
- if (codec->bus->core.ext_ops) {
- if (WARN_ON(!codec->bus->core.ext_ops->hdev_attach))
- return -EINVAL;
- return codec->bus->core.ext_ops->hdev_attach(&codec->core);
- }
-
- if (WARN_ON(!codec->preset))
- return -EINVAL;
-
- err = snd_hda_codec_set_name(codec, codec->preset->name);
- if (err < 0)
- goto error;
- err = snd_hdac_regmap_init(&codec->core);
- if (err < 0)
- goto error;
-
- if (!try_module_get(owner)) {
- err = -EINVAL;
- goto error;
- }
-
- patch = (hda_codec_patch_t)codec->preset->driver_data;
- if (patch) {
- err = patch(codec);
- if (err < 0)
- goto error_module_put;
- }
-
- err = snd_hda_codec_build_pcms(codec);
- if (err < 0)
- goto error_module;
- err = snd_hda_codec_build_controls(codec);
- if (err < 0)
- goto error_module;
- /* only register after the bus probe finished; otherwise it's racy */
- if (!codec->bus->bus_probing && codec->card->registered) {
- err = snd_card_register(codec->card);
- if (err < 0)
- goto error_module;
- snd_hda_codec_register(codec);
- }
-
- codec->core.lazy_cache = true;
- return 0;
-
- error_module:
- if (codec->patch_ops.free)
- codec->patch_ops.free(codec);
- error_module_put:
- module_put(owner);
-
- error:
- snd_hda_codec_cleanup_for_unbind(codec);
- codec->preset = NULL;
- return err;
-}
-
-static int hda_codec_driver_remove(struct device *dev)
-{
- struct hda_codec *codec = dev_to_hda_codec(dev);
-
- if (codec->bus->core.ext_ops) {
- if (WARN_ON(!codec->bus->core.ext_ops->hdev_detach))
- return -EINVAL;
- return codec->bus->core.ext_ops->hdev_detach(&codec->core);
- }
-
- snd_hda_codec_disconnect_pcms(codec);
- snd_hda_jack_tbl_disconnect(codec);
- if (!refcount_dec_and_test(&codec->pcm_ref))
- wait_event(codec->remove_sleep, !refcount_read(&codec->pcm_ref));
- snd_power_sync_ref(codec->bus->card);
-
- if (codec->patch_ops.free)
- codec->patch_ops.free(codec);
- snd_hda_codec_cleanup_for_unbind(codec);
- codec->preset = NULL;
- module_put(dev->driver->owner);
- return 0;
-}
-
-static void hda_codec_driver_shutdown(struct device *dev)
-{
- snd_hda_codec_shutdown(dev_to_hda_codec(dev));
-}
-
-int __hda_codec_driver_register(struct hda_codec_driver *drv, const char *name,
- struct module *owner)
-{
- drv->core.driver.name = name;
- drv->core.driver.owner = owner;
- drv->core.driver.bus = &snd_hda_bus_type;
- drv->core.driver.probe = hda_codec_driver_probe;
- drv->core.driver.remove = hda_codec_driver_remove;
- drv->core.driver.shutdown = hda_codec_driver_shutdown;
- drv->core.driver.pm = pm_ptr(&hda_codec_driver_pm);
- drv->core.type = HDA_DEV_LEGACY;
- drv->core.match = hda_codec_match;
- drv->core.unsol_event = hda_codec_unsol_event;
- return driver_register(&drv->core.driver);
-}
-EXPORT_SYMBOL_GPL(__hda_codec_driver_register);
-
-void hda_codec_driver_unregister(struct hda_codec_driver *drv)
-{
- driver_unregister(&drv->core.driver);
-}
-EXPORT_SYMBOL_GPL(hda_codec_driver_unregister);
-
-static inline bool codec_probed(struct hda_codec *codec)
-{
- return device_attach(hda_codec_dev(codec)) > 0 && codec->preset;
-}
-
-/* try to auto-load codec module */
-static void request_codec_module(struct hda_codec *codec)
-{
-#ifdef MODULE
- char modalias[32];
- const char *mod = NULL;
-
- switch (codec->probe_id) {
- case HDA_CODEC_ID_GENERIC_HDMI:
-#if IS_MODULE(CONFIG_SND_HDA_CODEC_HDMI)
- mod = "snd-hda-codec-hdmi";
-#endif
- break;
- case HDA_CODEC_ID_GENERIC:
-#if IS_MODULE(CONFIG_SND_HDA_GENERIC)
- mod = "snd-hda-codec-generic";
-#endif
- break;
- default:
- snd_hdac_codec_modalias(&codec->core, modalias, sizeof(modalias));
- mod = modalias;
- break;
- }
-
- if (mod)
- request_module(mod);
-#endif /* MODULE */
-}
-
-/* try to auto-load and bind the codec module */
-static void codec_bind_module(struct hda_codec *codec)
-{
-#ifdef MODULE
- request_codec_module(codec);
- if (codec_probed(codec))
- return;
-#endif
-}
-
-#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
-/* if all audio out widgets are digital, let's assume the codec as a HDMI/DP */
-static bool is_likely_hdmi_codec(struct hda_codec *codec)
-{
- hda_nid_t nid;
-
- /*
- * For ASoC users, if snd_hda_hdmi_codec module is denylisted and any
- * event causes i915 enumeration to fail, ->wcaps remains uninitialized.
- */
- if (!codec->wcaps)
- return true;
-
- for_each_hda_codec_node(nid, codec) {
- unsigned int wcaps = get_wcaps(codec, nid);
- switch (get_wcaps_type(wcaps)) {
- case AC_WID_AUD_IN:
- return false; /* HDMI parser supports only HDMI out */
- case AC_WID_AUD_OUT:
- if (!(wcaps & AC_WCAP_DIGITAL))
- return false;
- break;
- }
- }
- return true;
-}
-#else
-/* no HDMI codec parser support */
-#define is_likely_hdmi_codec(codec) false
-#endif /* CONFIG_SND_HDA_CODEC_HDMI */
-
-static int codec_bind_generic(struct hda_codec *codec)
-{
- if (codec->probe_id)
- return -ENODEV;
-
- if (is_likely_hdmi_codec(codec)) {
- codec->probe_id = HDA_CODEC_ID_GENERIC_HDMI;
- request_codec_module(codec);
- if (codec_probed(codec))
- return 0;
- }
-
- codec->probe_id = HDA_CODEC_ID_GENERIC;
- request_codec_module(codec);
- if (codec_probed(codec))
- return 0;
- return -ENODEV;
-}
-
-#if IS_ENABLED(CONFIG_SND_HDA_GENERIC)
-#define is_generic_config(codec) \
- (codec->modelname && !strcmp(codec->modelname, "generic"))
-#else
-#define is_generic_config(codec) 0
-#endif
-
-/**
- * snd_hda_codec_configure - (Re-)configure the HD-audio codec
- * @codec: the HDA codec
- *
- * Start parsing of the given codec tree and (re-)initialize the whole
- * patch instance.
- *
- * Returns 0 if successful or a negative error code.
- */
-int snd_hda_codec_configure(struct hda_codec *codec)
-{
- int err;
-
- if (codec->configured)
- return 0;
-
- if (is_generic_config(codec))
- codec->probe_id = HDA_CODEC_ID_GENERIC;
- else
- codec->probe_id = 0;
-
- if (!device_is_registered(&codec->core.dev)) {
- err = snd_hdac_device_register(&codec->core);
- if (err < 0)
- return err;
- }
-
- if (!codec->preset)
- codec_bind_module(codec);
- if (!codec->preset) {
- err = codec_bind_generic(codec);
- if (err < 0) {
- codec_dbg(codec, "Unable to bind the codec\n");
- return err;
- }
- }
-
- codec->configured = 1;
- return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hda_codec_configure);