Move the generic parts of the hda_component implementation into a new hda_component module. This will allow other HDA codecs to add support for the component binding API without duplicating all the code.

Signed-off-by: Richard Fitzgerald rf@opensource.cirrus.com --- Can someone test that this doesn't break the two TAS2781 fixups? --- MAINTAINERS | 1 + sound/pci/hda/Kconfig | 4 + sound/pci/hda/Makefile | 2 + sound/pci/hda/hda_component.c | 169 ++++++++++++++++++++++++++++++++++ sound/pci/hda/hda_component.h | 59 ++++++++++++ sound/pci/hda/patch_realtek.c | 146 ++++------------------------- 6 files changed, 252 insertions(+), 129 deletions(-) create mode 100644 sound/pci/hda/hda_component.c

diff --git a/MAINTAINERS b/MAINTAINERS index 8d1052fa6a69..bfc7062cf7b1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5014,6 +5014,7 @@ F: include/linux/mfd/cs42l43* F: include/sound/cs* F: sound/pci/hda/cirrus* F: sound/pci/hda/cs* +F: sound/pci/hda/hda_component* F: sound/pci/hda/hda_cs_dsp_ctl.* F: sound/soc/codecs/cs*

diff --git a/sound/pci/hda/Kconfig b/sound/pci/hda/Kconfig index 21a90b3c4cc7..20d757e38f94 100644 --- a/sound/pci/hda/Kconfig +++ b/sound/pci/hda/Kconfig @@ -116,6 +116,9 @@ config SND_HDA_CS_DSP_CONTROLS tristate select FW_CS_DSP

+config SND_HDA_SCODEC_COMPONENT + tristate + config SND_HDA_SCODEC_CS35L41_I2C tristate "Build CS35L41 HD-audio side codec support for I2C Bus" depends on I2C @@ -201,6 +204,7 @@ config SND_HDA_CODEC_REALTEK tristate "Build Realtek HD-audio codec support" select SND_HDA_GENERIC select SND_HDA_GENERIC_LEDS + select SND_HDA_SCODEC_COMPONENT help Say Y or M here to include Realtek HD-audio codec support in snd-hda-intel driver, such as ALC880. diff --git a/sound/pci/hda/Makefile b/sound/pci/hda/Makefile index 793e296c3f64..13e04e1f65de 100644 --- a/sound/pci/hda/Makefile +++ b/sound/pci/hda/Makefile @@ -37,6 +37,7 @@ snd-hda-scodec-cs35l56-objs := cs35l56_hda.o snd-hda-scodec-cs35l56-i2c-objs := cs35l56_hda_i2c.o snd-hda-scodec-cs35l56-spi-objs := cs35l56_hda_spi.o snd-hda-cs-dsp-ctls-objs := hda_cs_dsp_ctl.o +snd-hda-scodec-component-objs := hda_component.o snd-hda-scodec-tas2781-i2c-objs := tas2781_hda_i2c.o

# common driver @@ -67,6 +68,7 @@ obj-$(CONFIG_SND_HDA_SCODEC_CS35L56) += snd-hda-scodec-cs35l56.o obj-$(CONFIG_SND_HDA_SCODEC_CS35L56_I2C) += snd-hda-scodec-cs35l56-i2c.o obj-$(CONFIG_SND_HDA_SCODEC_CS35L56_SPI) += snd-hda-scodec-cs35l56-spi.o obj-$(CONFIG_SND_HDA_CS_DSP_CONTROLS) += snd-hda-cs-dsp-ctls.o +obj-$(CONFIG_SND_HDA_SCODEC_COMPONENT) += snd-hda-scodec-component.o obj-$(CONFIG_SND_HDA_SCODEC_TAS2781_I2C) += snd-hda-scodec-tas2781-i2c.o

# this must be the last entry after codec drivers; diff --git a/sound/pci/hda/hda_component.c b/sound/pci/hda/hda_component.c new file mode 100644 index 000000000000..cd299d7d84ba --- /dev/null +++ b/sound/pci/hda/hda_component.c @@ -0,0 +1,169 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * HD audio Component Binding Interface + * + * Copyright (C) 2021, 2023 Cirrus Logic, Inc. and + * Cirrus Logic International Semiconductor Ltd. + */ + +#include <linux/acpi.h> +#include <linux/component.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <sound/hda_codec.h> +#include "hda_component.h" +#include "hda_local.h" + +#ifdef CONFIG_ACPI +void hda_component_acpi_device_notify(struct hda_component *comps, int num_comps, + acpi_handle handle, u32 event, void *data) +{ + int i; + + for (i = 0; i < num_comps; i++) { + if (comps[i].dev && comps[i].acpi_notify) + comps[i].acpi_notify(acpi_device_handle(comps[i].adev), event, + comps[i].dev); + } +} +EXPORT_SYMBOL_NS_GPL(hda_component_acpi_device_notify, SND_HDA_SCODEC_COMPONENT); + +int hda_component_manager_bind_acpi_notifications(struct hda_codec *cdc, + struct hda_component *comps, int num_comps, + acpi_notify_handler handler, void *data) +{ + bool support_notifications = false; + struct acpi_device *adev; + int ret; + int i; + + adev = comps[0].adev; + if (!acpi_device_handle(adev)) + return 0; + + for (i = 0; i < num_comps; i++) + support_notifications = support_notifications || + comps[i].acpi_notifications_supported; + + if (support_notifications) { + ret = acpi_install_notify_handler(adev->handle, ACPI_DEVICE_NOTIFY, + handler, data); + if (ret < 0) { + codec_warn(cdc, "Failed to install notify handler: %d\n", ret); + return 0; + } + + codec_dbg(cdc, "Notify handler installed\n"); + } + + return 0; +} +EXPORT_SYMBOL_NS_GPL(hda_component_manager_bind_acpi_notifications, SND_HDA_SCODEC_COMPONENT); + +void hda_component_manager_unbind_acpi_notifications(struct hda_codec *cdc, + struct hda_component *comps, + acpi_notify_handler handler) +{ + struct acpi_device *adev; + int ret; + + adev = comps[0].adev; + if (!acpi_device_handle(adev)) + return; + + ret = acpi_remove_notify_handler(adev->handle, ACPI_DEVICE_NOTIFY, handler); + if (ret < 0) + codec_warn(cdc, "Failed to uninstall notify handler: %d\n", ret); +} +EXPORT_SYMBOL_NS_GPL(hda_component_manager_unbind_acpi_notifications, SND_HDA_SCODEC_COMPONENT); +#endif /* ifdef CONFIG_ACPI */ + +void hda_component_manager_playback_hook(struct hda_component *comps, int num_comps, int action) +{ + int i; + + for (i = 0; i < num_comps; i++) { + if (comps[i].dev && comps[i].pre_playback_hook) + comps[i].pre_playback_hook(comps[i].dev, action); + } + for (i = 0; i < num_comps; i++) { + if (comps[i].dev && comps[i].playback_hook) + comps[i].playback_hook(comps[i].dev, action); + } + for (i = 0; i < num_comps; i++) { + if (comps[i].dev && comps[i].post_playback_hook) + comps[i].post_playback_hook(comps[i].dev, action); + } +} +EXPORT_SYMBOL_NS_GPL(hda_component_manager_playback_hook, SND_HDA_SCODEC_COMPONENT); + +struct hda_scodec_match { + const char *bus; + const char *hid; + const char *match_str; + int index; +}; + +/* match the device name in a slightly relaxed manner */ +static int hda_comp_match_dev_name(struct device *dev, void *data) +{ + struct hda_scodec_match *p = data; + const char *d = dev_name(dev); + int n = strlen(p->bus); + char tmp[32]; + + /* check the bus name */ + if (strncmp(d, p->bus, n)) + return 0; + /* skip the bus number */ + if (isdigit(d[n])) + n++; + /* the rest must be exact matching */ + snprintf(tmp, sizeof(tmp), p->match_str, p->hid, p->index); + return !strcmp(d + n, tmp); +} + +int hda_component_manager_init(struct hda_codec *cdc, + struct hda_component *comps, int count, + const char *bus, const char *hid, + const char *match_str, + const struct component_master_ops *ops) +{ + struct device *dev = hda_codec_dev(cdc); + struct component_match *match = NULL; + struct hda_scodec_match *sm; + int ret, i; + + for (i = 0; i < count; i++) { + sm = devm_kmalloc(dev, sizeof(*sm), GFP_KERNEL); + if (!sm) + return -ENOMEM; + + sm->bus = bus; + sm->hid = hid; + sm->match_str = match_str; + sm->index = i; + comps[i].codec = cdc; + component_match_add(dev, &match, hda_comp_match_dev_name, sm); + } + + ret = component_master_add_with_match(dev, ops, match); + if (ret) + codec_err(cdc, "Fail to register component aggregator %d\n", ret); + + return ret; +} +EXPORT_SYMBOL_NS_GPL(hda_component_manager_init, SND_HDA_SCODEC_COMPONENT); + +void hda_component_manager_free(struct hda_codec *cdc, + const struct component_master_ops *ops) +{ + struct device *dev = hda_codec_dev(cdc); + + component_master_del(dev, ops); +} +EXPORT_SYMBOL_NS_GPL(hda_component_manager_free, SND_HDA_SCODEC_COMPONENT); + +MODULE_DESCRIPTION("HD Audio component binding library"); +MODULE_AUTHOR("Richard Fitzgerald rf@opensource.cirrus.com"); +MODULE_LICENSE("GPL"); diff --git a/sound/pci/hda/hda_component.h b/sound/pci/hda/hda_component.h index bbd6f0ed16c1..deae9dea01b4 100644 --- a/sound/pci/hda/hda_component.h +++ b/sound/pci/hda/hda_component.h @@ -23,3 +23,62 @@ struct hda_component { void (*playback_hook)(struct device *dev, int action); void (*post_playback_hook)(struct device *dev, int action); }; + +#ifdef CONFIG_ACPI +void hda_component_acpi_device_notify(struct hda_component *comps, int num_comps, + acpi_handle handle, u32 event, void *data); +int hda_component_manager_bind_acpi_notifications(struct hda_codec *cdc, + struct hda_component *comps, int num_comps, + acpi_notify_handler handler, void *data); +void hda_component_manager_unbind_acpi_notifications(struct hda_codec *cdc, + struct hda_component *comps, + acpi_notify_handler handler); +#else +static inline void hda_component_acpi_device_notify(struct hda_component *comps, + int num_comps, + acpi_handle handle, + u32 event, + void *data) +{ +} + +static inline int hda_component_manager_bind_acpi_notifications(struct hda_codec *cdc, + struct hda_component *comps, + int num_comps, + acpi_notify_handler handler, + void *data) + +{ + return 0; +} + +static inline void hda_component_manager_unbind_acpi_notifications(struct hda_codec *cdc, + struct hda_component *comps, + acpi_notify_handler handler) +{ +} +#endif /* ifdef CONFIG_ACPI */ + +void hda_component_manager_playback_hook(struct hda_component *comps, int num_comps, + int action); + +int hda_component_manager_init(struct hda_codec *cdc, + struct hda_component *comps, int count, + const char *bus, const char *hid, + const char *match_str, + const struct component_master_ops *ops); + +void hda_component_manager_free(struct hda_codec *cdc, + const struct component_master_ops *ops); + +static inline int hda_component_manager_bind(struct hda_codec *cdc, + struct hda_component *comps) +{ + return component_bind_all(hda_codec_dev(cdc), comps); +} + +static inline void hda_component_manager_unbind(struct hda_codec *cdc, + struct hda_component *comps) +{ + component_unbind_all(hda_codec_dev(cdc), comps); +} diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 2e2906d2dd1c..62382a1b0e05 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -133,7 +133,6 @@ struct alc_spec { u8 alc_mute_keycode_map[1];

/* component binding */ - struct component_match *match; struct hda_component comps[HDA_MAX_COMPONENTS]; };

@@ -6717,91 +6716,30 @@ static void alc287_fixup_legion_15imhg05_speakers(struct hda_codec *codec, } }

-#ifdef CONFIG_ACPI static void comp_acpi_device_notify(acpi_handle handle, u32 event, void *data) { struct hda_codec *cdc = data; struct alc_spec *spec = cdc->spec; - int i;

codec_info(cdc, "ACPI Notification %d\n", event);

- for (i = 0; i < HDA_MAX_COMPONENTS; i++) { - if (spec->comps[i].dev && spec->comps[i].acpi_notify) - spec->comps[i].acpi_notify(acpi_device_handle(spec->comps[i].adev), event, - spec->comps[i].dev); - } + hda_component_acpi_device_notify(spec->comps, ARRAY_SIZE(spec->comps), + handle, event, data); }

-static int comp_bind_acpi(struct device *dev) -{ - struct hda_codec *cdc = dev_to_hda_codec(dev); - struct alc_spec *spec = cdc->spec; - bool support_notifications = false; - struct acpi_device *adev; - int ret; - int i; - - adev = spec->comps[0].adev; - if (!acpi_device_handle(adev)) - return 0; - - for (i = 0; i < HDA_MAX_COMPONENTS; i++) - support_notifications = support_notifications || - spec->comps[i].acpi_notifications_supported; - - if (support_notifications) { - ret = acpi_install_notify_handler(adev->handle, ACPI_DEVICE_NOTIFY, - comp_acpi_device_notify, cdc); - if (ret < 0) { - codec_warn(cdc, "Failed to install notify handler: %d\n", ret); - return 0; - } - - codec_dbg(cdc, "Notify handler installed\n"); - } - - return 0; -} - -static void comp_unbind_acpi(struct device *dev) -{ - struct hda_codec *cdc = dev_to_hda_codec(dev); - struct alc_spec *spec = cdc->spec; - struct acpi_device *adev; - int ret; - - adev = spec->comps[0].adev; - if (!acpi_device_handle(adev)) - return; - - ret = acpi_remove_notify_handler(adev->handle, ACPI_DEVICE_NOTIFY, - comp_acpi_device_notify); - if (ret < 0) - codec_warn(cdc, "Failed to uninstall notify handler: %d\n", ret); -} -#else -static int comp_bind_acpi(struct device *dev) -{ - return 0; -} - -static void comp_unbind_acpi(struct device *dev) -{ -} -#endif - static int comp_bind(struct device *dev) { struct hda_codec *cdc = dev_to_hda_codec(dev); struct alc_spec *spec = cdc->spec; int ret;

- ret = component_bind_all(dev, spec->comps); + ret = hda_component_manager_bind(cdc, spec->comps); if (ret) return ret;

- return comp_bind_acpi(dev); + return hda_component_manager_bind_acpi_notifications(cdc, + spec->comps, ARRAY_SIZE(spec->comps), + comp_acpi_device_notify, cdc); }

static void comp_unbind(struct device *dev) @@ -6809,8 +6747,8 @@ static void comp_unbind(struct device *dev) struct hda_codec *cdc = dev_to_hda_codec(dev); struct alc_spec *spec = cdc->spec;

- comp_unbind_acpi(dev); - component_unbind_all(dev, spec->comps); + hda_component_manager_unbind_acpi_notifications(cdc, spec->comps, comp_acpi_device_notify); + hda_component_manager_unbind(cdc, spec->comps); }

static const struct component_master_ops comp_master_ops = { @@ -6822,78 +6760,27 @@ static void comp_generic_playback_hook(struct hda_pcm_stream *hinfo, struct hda_ struct snd_pcm_substream *sub, int action) { struct alc_spec *spec = cdc->spec; - int i;

- for (i = 0; i < HDA_MAX_COMPONENTS; i++) { - if (spec->comps[i].dev && spec->comps[i].pre_playback_hook) - spec->comps[i].pre_playback_hook(spec->comps[i].dev, action); - } - for (i = 0; i < HDA_MAX_COMPONENTS; i++) { - if (spec->comps[i].dev && spec->comps[i].playback_hook) - spec->comps[i].playback_hook(spec->comps[i].dev, action); - } - for (i = 0; i < HDA_MAX_COMPONENTS; i++) { - if (spec->comps[i].dev && spec->comps[i].post_playback_hook) - spec->comps[i].post_playback_hook(spec->comps[i].dev, action); - } -} - -struct scodec_dev_name { - const char *bus; - const char *hid; - const char *match_str; - int index; -}; - -/* match the device name in a slightly relaxed manner */ -static int comp_match_dev_name(struct device *dev, void *data) -{ - struct scodec_dev_name *p = data; - const char *d = dev_name(dev); - int n = strlen(p->bus); - char tmp[32]; - - /* check the bus name */ - if (strncmp(d, p->bus, n)) - return 0; - /* skip the bus number */ - if (isdigit(d[n])) - n++; - /* the rest must be exact matching */ - snprintf(tmp, sizeof(tmp), p->match_str, p->hid, p->index); - return !strcmp(d + n, tmp); + hda_component_manager_playback_hook(spec->comps, ARRAY_SIZE(spec->comps), action); }

static void comp_generic_fixup(struct hda_codec *cdc, int action, const char *bus, const char *hid, const char *match_str, int count) { - struct device *dev = hda_codec_dev(cdc); struct alc_spec *spec = cdc->spec; - struct scodec_dev_name *rec; - int ret, i; + int ret;

switch (action) { case HDA_FIXUP_ACT_PRE_PROBE: - for (i = 0; i < count; i++) { - rec = devm_kmalloc(dev, sizeof(*rec), GFP_KERNEL); - if (!rec) - return; - rec->bus = bus; - rec->hid = hid; - rec->match_str = match_str; - rec->index = i; - spec->comps[i].codec = cdc; - component_match_add(dev, &spec->match, - comp_match_dev_name, rec); - } - ret = component_master_add_with_match(dev, &comp_master_ops, spec->match); + ret = hda_component_manager_init(cdc, spec->comps, count, bus, hid, + match_str, &comp_master_ops); if (ret) - codec_err(cdc, "Fail to register component aggregator %d\n", ret); - else - spec->gen.pcm_playback_hook = comp_generic_playback_hook; + return; + + spec->gen.pcm_playback_hook = comp_generic_playback_hook; break; case HDA_FIXUP_ACT_FREE: - component_master_del(dev, &comp_master_ops); + hda_component_manager_free(cdc, &comp_master_ops); break; } } @@ -12568,6 +12455,7 @@ MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_realtek);

MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Realtek HD-audio codec"); +MODULE_IMPORT_NS(SND_HDA_SCODEC_COMPONENT);

static struct hda_codec_driver realtek_driver = { .id = snd_hda_id_realtek,