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@xxxxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxxxxxxxxxxxxxxx>");
+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,
--
2.30.2
