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-rw-r--r--sound/hda/ext/Makefile2
-rw-r--r--sound/hda/ext/hdac_ext_bus.c52
-rw-r--r--sound/hda/ext/hdac_ext_controller.c198
-rw-r--r--sound/hda/ext/hdac_ext_stream.c463
4 files changed, 327 insertions, 388 deletions
diff --git a/sound/hda/ext/Makefile b/sound/hda/ext/Makefile
index 154779bdc0ba..05883fb28d28 100644
--- a/sound/hda/ext/Makefile
+++ b/sound/hda/ext/Makefile
@@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
-snd-hda-ext-core-objs := hdac_ext_bus.o hdac_ext_controller.o hdac_ext_stream.o
+snd-hda-ext-core-y := hdac_ext_bus.o hdac_ext_controller.o hdac_ext_stream.o
obj-$(CONFIG_SND_HDA_EXT_CORE) += snd-hda-ext-core.o
diff --git a/sound/hda/ext/hdac_ext_bus.c b/sound/hda/ext/hdac_ext_bus.c
index d0a604c939df..6004ea1c373e 100644
--- a/sound/hda/ext/hdac_ext_bus.c
+++ b/sound/hda/ext/hdac_ext_bus.c
@@ -60,58 +60,6 @@ void snd_hdac_ext_bus_exit(struct hdac_bus *bus)
}
EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_exit);
-static void default_release(struct device *dev)
-{
- snd_hdac_ext_bus_device_exit(dev_to_hdac_dev(dev));
-}
-
-/**
- * snd_hdac_ext_bus_device_init - initialize the HDA extended codec base device
- * @bus: hdac bus to attach to
- * @addr: codec address
- * @hdev: hdac device to init
- *
- * Returns zero for success or a negative error code.
- */
-int snd_hdac_ext_bus_device_init(struct hdac_bus *bus, int addr,
- struct hdac_device *hdev)
-{
- char name[15];
- int ret;
-
- hdev->bus = bus;
-
- snprintf(name, sizeof(name), "ehdaudio%dD%d", bus->idx, addr);
-
- ret = snd_hdac_device_init(hdev, bus, name, addr);
- if (ret < 0) {
- dev_err(bus->dev, "device init failed for hdac device\n");
- return ret;
- }
- hdev->type = HDA_DEV_ASOC;
- hdev->dev.release = default_release;
-
- ret = snd_hdac_device_register(hdev);
- if (ret) {
- dev_err(bus->dev, "failed to register hdac device\n");
- snd_hdac_ext_bus_device_exit(hdev);
- return ret;
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_init);
-
-/**
- * snd_hdac_ext_bus_device_exit - clean up a HD-audio extended codec base device
- * @hdev: hdac device to clean up
- */
-void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev)
-{
- snd_hdac_device_exit(hdev);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_exit);
-
/**
* snd_hdac_ext_bus_device_remove - remove HD-audio extended codec base devices
*
diff --git a/sound/hda/ext/hdac_ext_controller.c b/sound/hda/ext/hdac_ext_controller.c
index 4d060d5b1db6..c84754434d16 100644
--- a/sound/hda/ext/hdac_ext_controller.c
+++ b/sound/hda/ext/hdac_ext_controller.c
@@ -9,19 +9,13 @@
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
+#include <linux/bitfield.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <sound/hda_register.h>
#include <sound/hdaudio_ext.h>
/*
- * maximum HDAC capablities we should parse to avoid endless looping:
- * currently we have 4 extended caps, so this is future proof for now.
- * extend when this limit is seen meeting in real HW
- */
-#define HDAC_MAX_CAPS 10
-
-/*
* processing pipe helpers - these helpers are useful for dealing with HDA
* new capability of processing pipelines
*/
@@ -88,6 +82,7 @@ int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus)
int idx;
u32 link_count;
struct hdac_ext_link *hlink;
+ u32 leptr;
link_count = readl(bus->mlcap + AZX_REG_ML_MLCD) + 1;
@@ -103,6 +98,12 @@ int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus)
(AZX_ML_INTERVAL * idx);
hlink->lcaps = readl(hlink->ml_addr + AZX_REG_ML_LCAP);
hlink->lsdiid = readw(hlink->ml_addr + AZX_REG_ML_LSDIID);
+ hlink->slcount = FIELD_GET(AZX_ML_HDA_LCAP_SLCOUNT, hlink->lcaps) + 1;
+
+ if (hdac_ext_link_alt(hlink)) {
+ leptr = readl(hlink->ml_addr + AZX_REG_ML_LEPTR);
+ hlink->id = FIELD_GET(AZX_REG_ML_LEPTR_ID, leptr);
+ }
/* since link in On, update the ref */
hlink->ref_count = 1;
@@ -115,67 +116,89 @@ int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus)
EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_ml_capabilities);
/**
- * snd_hdac_link_free_all- free hdac extended link objects
+ * snd_hdac_ext_link_free_all- free hdac extended link objects
*
* @bus: the pointer to HDAC bus object
*/
-void snd_hdac_link_free_all(struct hdac_bus *bus)
+void snd_hdac_ext_link_free_all(struct hdac_bus *bus)
{
- struct hdac_ext_link *l;
+ struct hdac_ext_link *hlink;
while (!list_empty(&bus->hlink_list)) {
- l = list_first_entry(&bus->hlink_list, struct hdac_ext_link, list);
- list_del(&l->list);
- kfree(l);
+ hlink = list_first_entry(&bus->hlink_list, struct hdac_ext_link, list);
+ list_del(&hlink->list);
+ kfree(hlink);
}
}
-EXPORT_SYMBOL_GPL(snd_hdac_link_free_all);
+EXPORT_SYMBOL_GPL(snd_hdac_ext_link_free_all);
+
+struct hdac_ext_link *snd_hdac_ext_bus_get_hlink_by_id(struct hdac_bus *bus, u32 id)
+{
+ struct hdac_ext_link *hlink;
+
+ list_for_each_entry(hlink, &bus->hlink_list, list)
+ if (hdac_ext_link_alt(hlink) && hlink->id == id)
+ return hlink;
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_hlink_by_id);
+
+/**
+ * snd_hdac_ext_bus_get_hlink_by_addr - get hlink at specified address
+ * @bus: hlink's parent bus device
+ * @addr: codec device address
+ *
+ * Returns hlink object or NULL if matching hlink is not found.
+ */
+struct hdac_ext_link *snd_hdac_ext_bus_get_hlink_by_addr(struct hdac_bus *bus, int addr)
+{
+ struct hdac_ext_link *hlink;
+
+ list_for_each_entry(hlink, &bus->hlink_list, list)
+ if (hlink->lsdiid & (0x1 << addr))
+ return hlink;
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_hlink_by_addr);
/**
- * snd_hdac_ext_bus_get_link_index - get link based on codec name
+ * snd_hdac_ext_bus_get_hlink_by_name - get hlink based on codec name
* @bus: the pointer to HDAC bus object
* @codec_name: codec name
*/
-struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus,
- const char *codec_name)
+struct hdac_ext_link *snd_hdac_ext_bus_get_hlink_by_name(struct hdac_bus *bus,
+ const char *codec_name)
{
- int i;
- struct hdac_ext_link *hlink = NULL;
int bus_idx, addr;
if (sscanf(codec_name, "ehdaudio%dD%d", &bus_idx, &addr) != 2)
return NULL;
if (bus->idx != bus_idx)
return NULL;
+ if (addr < 0 || addr > 31)
+ return NULL;
- list_for_each_entry(hlink, &bus->hlink_list, list) {
- for (i = 0; i < HDA_MAX_CODECS; i++) {
- if (hlink->lsdiid & (0x1 << addr))
- return hlink;
- }
- }
-
- return NULL;
+ return snd_hdac_ext_bus_get_hlink_by_addr(bus, addr);
}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_link);
+EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_hlink_by_name);
-static int check_hdac_link_power_active(struct hdac_ext_link *link, bool enable)
+static int check_hdac_link_power_active(struct hdac_ext_link *hlink, bool enable)
{
int timeout;
u32 val;
- int mask = (1 << AZX_MLCTL_CPA_SHIFT);
+ int mask = (1 << AZX_ML_LCTL_CPA_SHIFT);
udelay(3);
timeout = 150;
do {
- val = readl(link->ml_addr + AZX_REG_ML_LCTL);
+ val = readl(hlink->ml_addr + AZX_REG_ML_LCTL);
if (enable) {
- if (((val & mask) >> AZX_MLCTL_CPA_SHIFT))
+ if (((val & mask) >> AZX_ML_LCTL_CPA_SHIFT))
return 0;
} else {
- if (!((val & mask) >> AZX_MLCTL_CPA_SHIFT))
+ if (!((val & mask) >> AZX_ML_LCTL_CPA_SHIFT))
return 0;
}
udelay(3);
@@ -186,26 +209,26 @@ static int check_hdac_link_power_active(struct hdac_ext_link *link, bool enable)
/**
* snd_hdac_ext_bus_link_power_up -power up hda link
- * @link: HD-audio extended link
+ * @hlink: HD-audio extended link
*/
-int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link)
+int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *hlink)
{
- snd_hdac_updatel(link->ml_addr, AZX_REG_ML_LCTL,
- AZX_MLCTL_SPA, AZX_MLCTL_SPA);
+ snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL,
+ AZX_ML_LCTL_SPA, AZX_ML_LCTL_SPA);
- return check_hdac_link_power_active(link, true);
+ return check_hdac_link_power_active(hlink, true);
}
EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_up);
/**
* snd_hdac_ext_bus_link_power_down -power down hda link
- * @link: HD-audio extended link
+ * @hlink: HD-audio extended link
*/
-int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link)
+int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *hlink)
{
- snd_hdac_updatel(link->ml_addr, AZX_REG_ML_LCTL, AZX_MLCTL_SPA, 0);
+ snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL, AZX_ML_LCTL_SPA, 0);
- return check_hdac_link_power_active(link, false);
+ return check_hdac_link_power_active(hlink, false);
}
EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_down);
@@ -219,9 +242,7 @@ int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus)
int ret;
list_for_each_entry(hlink, &bus->hlink_list, list) {
- snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL,
- AZX_MLCTL_SPA, AZX_MLCTL_SPA);
- ret = check_hdac_link_power_active(hlink, true);
+ ret = snd_hdac_ext_bus_link_power_up(hlink);
if (ret < 0)
return ret;
}
@@ -240,9 +261,7 @@ int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus)
int ret;
list_for_each_entry(hlink, &bus->hlink_list, list) {
- snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL,
- AZX_MLCTL_SPA, 0);
- ret = check_hdac_link_power_active(hlink, false);
+ ret = snd_hdac_ext_bus_link_power_down(hlink);
if (ret < 0)
return ret;
}
@@ -251,8 +270,32 @@ int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus)
}
EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_down_all);
+/**
+ * snd_hdac_ext_bus_link_set_stream_id - maps stream id to link output
+ * @link: HD-audio ext link to set up
+ * @stream: stream id
+ */
+void snd_hdac_ext_bus_link_set_stream_id(struct hdac_ext_link *link,
+ int stream)
+{
+ snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV, (1 << stream), 1 << stream);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_set_stream_id);
+
+/**
+ * snd_hdac_ext_bus_link_clear_stream_id - maps stream id to link output
+ * @link: HD-audio ext link to set up
+ * @stream: stream id
+ */
+void snd_hdac_ext_bus_link_clear_stream_id(struct hdac_ext_link *link,
+ int stream)
+{
+ snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV, (1 << stream), 0);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_clear_stream_id);
+
int snd_hdac_ext_bus_link_get(struct hdac_bus *bus,
- struct hdac_ext_link *link)
+ struct hdac_ext_link *hlink)
{
unsigned long codec_mask;
int ret = 0;
@@ -263,19 +306,19 @@ int snd_hdac_ext_bus_link_get(struct hdac_bus *bus,
* if we move from 0 to 1, count will be 1 so power up this link
* as well, also check the dma status and trigger that
*/
- if (++link->ref_count == 1) {
+ if (++hlink->ref_count == 1) {
if (!bus->cmd_dma_state) {
snd_hdac_bus_init_cmd_io(bus);
bus->cmd_dma_state = true;
}
- ret = snd_hdac_ext_bus_link_power_up(link);
+ ret = snd_hdac_ext_bus_link_power_up(hlink);
/*
* clear the register to invalidate all the output streams
*/
- snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV,
- ML_LOSIDV_STREAM_MASK, 0);
+ snd_hdac_updatew(hlink->ml_addr, AZX_REG_ML_LOSIDV,
+ AZX_ML_LOSIDV_STREAM_MASK, 0);
/*
* wait for 521usec for codec to report status
* HDA spec section 4.3 - Codec Discovery
@@ -294,10 +337,10 @@ int snd_hdac_ext_bus_link_get(struct hdac_bus *bus,
EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_get);
int snd_hdac_ext_bus_link_put(struct hdac_bus *bus,
- struct hdac_ext_link *link)
+ struct hdac_ext_link *hlink)
{
int ret = 0;
- struct hdac_ext_link *hlink;
+ struct hdac_ext_link *hlink_tmp;
bool link_up = false;
mutex_lock(&bus->lock);
@@ -306,15 +349,15 @@ int snd_hdac_ext_bus_link_put(struct hdac_bus *bus,
* if we move from 1 to 0, count will be 0
* so power down this link as well
*/
- if (--link->ref_count == 0) {
- ret = snd_hdac_ext_bus_link_power_down(link);
+ if (--hlink->ref_count == 0) {
+ ret = snd_hdac_ext_bus_link_power_down(hlink);
/*
* now check if all links are off, if so turn off
* cmd dma as well
*/
- list_for_each_entry(hlink, &bus->hlink_list, list) {
- if (hlink->ref_count) {
+ list_for_each_entry(hlink_tmp, &bus->hlink_list, list) {
+ if (hlink_tmp->ref_count) {
link_up = true;
break;
}
@@ -330,3 +373,40 @@ int snd_hdac_ext_bus_link_put(struct hdac_bus *bus,
return ret;
}
EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_put);
+
+static void hdac_ext_codec_link_up(struct hdac_device *codec)
+{
+ const char *devname = dev_name(&codec->dev);
+ struct hdac_ext_link *hlink =
+ snd_hdac_ext_bus_get_hlink_by_name(codec->bus, devname);
+
+ if (hlink)
+ snd_hdac_ext_bus_link_get(codec->bus, hlink);
+}
+
+static void hdac_ext_codec_link_down(struct hdac_device *codec)
+{
+ const char *devname = dev_name(&codec->dev);
+ struct hdac_ext_link *hlink =
+ snd_hdac_ext_bus_get_hlink_by_name(codec->bus, devname);
+
+ if (hlink)
+ snd_hdac_ext_bus_link_put(codec->bus, hlink);
+}
+
+void snd_hdac_ext_bus_link_power(struct hdac_device *codec, bool enable)
+{
+ struct hdac_bus *bus = codec->bus;
+ bool oldstate = test_bit(codec->addr, &bus->codec_powered);
+
+ if (enable == oldstate)
+ return;
+
+ snd_hdac_bus_link_power(codec, enable);
+
+ if (enable)
+ hdac_ext_codec_link_up(codec);
+ else
+ hdac_ext_codec_link_down(codec);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power);
diff --git a/sound/hda/ext/hdac_ext_stream.c b/sound/hda/ext/hdac_ext_stream.c
index c4d54a838773..a3ac738f1130 100644
--- a/sound/hda/ext/hdac_ext_stream.c
+++ b/sound/hda/ext/hdac_ext_stream.c
@@ -10,15 +10,51 @@
*/
#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/hda_register.h>
#include <sound/hdaudio_ext.h>
+#include <sound/compress_driver.h>
+
+/**
+ * snd_hdac_ext_host_stream_setup - Setup a HOST stream.
+ * @hext_stream: HDAudio stream to set up.
+ * @code_loading: Whether the stream is for PCM or code-loading.
+ *
+ * Return: Zero on success or negative error code.
+ */
+int snd_hdac_ext_host_stream_setup(struct hdac_ext_stream *hext_stream, bool code_loading)
+{
+ return hext_stream->host_setup(hdac_stream(hext_stream), code_loading);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_ext_host_stream_setup);
+
+/**
+ * snd_hdac_apl_host_stream_setup - Setup a HOST stream following procedure
+ * recommended for ApolloLake devices.
+ * @hstream: HDAudio stream to set up.
+ * @code_loading: Whether the stream is for PCM or code-loading.
+ *
+ * Return: Zero on success or negative error code.
+ */
+static int snd_hdac_apl_host_stream_setup(struct hdac_stream *hstream, bool code_loading)
+{
+ struct hdac_ext_stream *hext_stream = stream_to_hdac_ext_stream(hstream);
+ int ret;
+
+ snd_hdac_ext_stream_decouple(hstream->bus, hext_stream, false);
+ ret = snd_hdac_stream_setup(hstream, code_loading);
+ snd_hdac_ext_stream_decouple(hstream->bus, hext_stream, true);
+
+ return ret;
+}
/**
* snd_hdac_ext_stream_init - initialize each stream (aka device)
* @bus: HD-audio core bus
- * @stream: HD-audio ext core stream object to initialize
+ * @hext_stream: HD-audio ext core stream object to initialize
* @idx: stream index number
* @direction: stream direction (SNDRV_PCM_STREAM_PLAYBACK or SNDRV_PCM_STREAM_CAPTURE)
* @tag: the tag id to assign
@@ -26,37 +62,22 @@
* initialize the stream, if ppcap is enabled then init those and then
* invoke hdac stream initialization routine
*/
-void snd_hdac_ext_stream_init(struct hdac_bus *bus,
- struct hdac_ext_stream *stream,
- int idx, int direction, int tag)
+static void snd_hdac_ext_stream_init(struct hdac_bus *bus,
+ struct hdac_ext_stream *hext_stream,
+ int idx, int direction, int tag)
{
if (bus->ppcap) {
- stream->pphc_addr = bus->ppcap + AZX_PPHC_BASE +
+ hext_stream->pphc_addr = bus->ppcap + AZX_PPHC_BASE +
AZX_PPHC_INTERVAL * idx;
- stream->pplc_addr = bus->ppcap + AZX_PPLC_BASE +
+ hext_stream->pplc_addr = bus->ppcap + AZX_PPLC_BASE +
AZX_PPLC_MULTI * bus->num_streams +
AZX_PPLC_INTERVAL * idx;
}
- if (bus->spbcap) {
- stream->spib_addr = bus->spbcap + AZX_SPB_BASE +
- AZX_SPB_INTERVAL * idx +
- AZX_SPB_SPIB;
-
- stream->fifo_addr = bus->spbcap + AZX_SPB_BASE +
- AZX_SPB_INTERVAL * idx +
- AZX_SPB_MAXFIFO;
- }
-
- if (bus->drsmcap)
- stream->dpibr_addr = bus->drsmcap + AZX_DRSM_BASE +
- AZX_DRSM_INTERVAL * idx;
-
- stream->decoupled = false;
- snd_hdac_stream_init(bus, &stream->hstream, idx, direction, tag);
+ hext_stream->decoupled = false;
+ snd_hdac_stream_init(bus, &hext_stream->hstream, idx, direction, tag);
}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_init);
/**
* snd_hdac_ext_stream_init_all - create and initialize the stream objects
@@ -67,19 +88,27 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_init);
* @dir: direction of streams
*/
int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx,
- int num_stream, int dir)
+ int num_stream, int dir)
{
+ struct pci_dev *pci = to_pci_dev(bus->dev);
+ int (*setup_op)(struct hdac_stream *, bool);
int stream_tag = 0;
int i, tag, idx = start_idx;
+ if (pci->device == PCI_DEVICE_ID_INTEL_HDA_APL)
+ setup_op = snd_hdac_apl_host_stream_setup;
+ else
+ setup_op = snd_hdac_stream_setup;
+
for (i = 0; i < num_stream; i++) {
- struct hdac_ext_stream *stream =
- kzalloc(sizeof(*stream), GFP_KERNEL);
- if (!stream)
+ struct hdac_ext_stream *hext_stream =
+ kzalloc(sizeof(*hext_stream), GFP_KERNEL);
+ if (!hext_stream)
return -ENOMEM;
tag = ++stream_tag;
- snd_hdac_ext_stream_init(bus, stream, idx, dir, tag);
+ snd_hdac_ext_stream_init(bus, hext_stream, idx, dir, tag);
idx++;
+ hext_stream->host_setup = setup_op;
}
return 0;
@@ -88,38 +117,32 @@ int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx,
EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_init_all);
/**
- * snd_hdac_stream_free_all - free hdac extended stream objects
+ * snd_hdac_ext_stream_free_all - free hdac extended stream objects
*
* @bus: HD-audio core bus
*/
-void snd_hdac_stream_free_all(struct hdac_bus *bus)
+void snd_hdac_ext_stream_free_all(struct hdac_bus *bus)
{
struct hdac_stream *s, *_s;
- struct hdac_ext_stream *stream;
+ struct hdac_ext_stream *hext_stream;
list_for_each_entry_safe(s, _s, &bus->stream_list, list) {
- stream = stream_to_hdac_ext_stream(s);
- snd_hdac_ext_stream_decouple(bus, stream, false);
+ hext_stream = stream_to_hdac_ext_stream(s);
+ snd_hdac_ext_stream_decouple(bus, hext_stream, false);
list_del(&s->list);
- kfree(stream);
+ kfree(hext_stream);
}
}
-EXPORT_SYMBOL_GPL(snd_hdac_stream_free_all);
+EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_free_all);
-/**
- * snd_hdac_ext_stream_decouple - decouple the hdac stream
- * @bus: HD-audio core bus
- * @stream: HD-audio ext core stream object to initialize
- * @decouple: flag to decouple
- */
-void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
- struct hdac_ext_stream *stream, bool decouple)
+void snd_hdac_ext_stream_decouple_locked(struct hdac_bus *bus,
+ struct hdac_ext_stream *hext_stream,
+ bool decouple)
{
- struct hdac_stream *hstream = &stream->hstream;
+ struct hdac_stream *hstream = &hext_stream->hstream;
u32 val;
int mask = AZX_PPCTL_PROCEN(hstream->index);
- spin_lock_irq(&bus->reg_lock);
val = readw(bus->ppcap + AZX_REG_PP_PPCTL) & mask;
if (decouple && !val)
@@ -127,192 +150,177 @@ void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
else if (!decouple && val)
snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, mask, 0);
- stream->decoupled = decouple;
+ hext_stream->decoupled = decouple;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_decouple_locked);
+
+/**
+ * snd_hdac_ext_stream_decouple - decouple the hdac stream
+ * @bus: HD-audio core bus
+ * @hext_stream: HD-audio ext core stream object to initialize
+ * @decouple: flag to decouple
+ */
+void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
+ struct hdac_ext_stream *hext_stream, bool decouple)
+{
+ spin_lock_irq(&bus->reg_lock);
+ snd_hdac_ext_stream_decouple_locked(bus, hext_stream, decouple);
spin_unlock_irq(&bus->reg_lock);
}
EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_decouple);
/**
- * snd_hdac_ext_linkstream_start - start a stream
- * @stream: HD-audio ext core stream to start
+ * snd_hdac_ext_stream_start - start a stream
+ * @hext_stream: HD-audio ext core stream to start
*/
-void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *stream)
+void snd_hdac_ext_stream_start(struct hdac_ext_stream *hext_stream)
{
- snd_hdac_updatel(stream->pplc_addr, AZX_REG_PPLCCTL,
+ snd_hdac_updatel(hext_stream->pplc_addr, AZX_REG_PPLCCTL,
AZX_PPLCCTL_RUN, AZX_PPLCCTL_RUN);
}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_start);
+EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_start);
/**
- * snd_hdac_ext_link_stream_clear - stop a stream DMA
- * @stream: HD-audio ext core stream to stop
+ * snd_hdac_ext_stream_clear - stop a stream DMA
+ * @hext_stream: HD-audio ext core stream to stop
*/
-void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *stream)
+void snd_hdac_ext_stream_clear(struct hdac_ext_stream *hext_stream)
{
- snd_hdac_updatel(stream->pplc_addr, AZX_REG_PPLCCTL, AZX_PPLCCTL_RUN, 0);
+ snd_hdac_updatel(hext_stream->pplc_addr, AZX_REG_PPLCCTL, AZX_PPLCCTL_RUN, 0);
}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_clear);
+EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_clear);
/**
- * snd_hdac_ext_link_stream_reset - reset a stream
- * @stream: HD-audio ext core stream to reset
+ * snd_hdac_ext_stream_reset - reset a stream
+ * @hext_stream: HD-audio ext core stream to reset
*/
-void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *stream)
+void snd_hdac_ext_stream_reset(struct hdac_ext_stream *hext_stream)
{
unsigned char val;
int timeout;
- snd_hdac_ext_link_stream_clear(stream);
+ snd_hdac_ext_stream_clear(hext_stream);
- snd_hdac_updatel(stream->pplc_addr, AZX_REG_PPLCCTL,
+ snd_hdac_updatel(hext_stream->pplc_addr, AZX_REG_PPLCCTL,
AZX_PPLCCTL_STRST, AZX_PPLCCTL_STRST);
udelay(3);
timeout = 50;
do {
- val = readl(stream->pplc_addr + AZX_REG_PPLCCTL) &
+ val = readl(hext_stream->pplc_addr + AZX_REG_PPLCCTL) &
AZX_PPLCCTL_STRST;
if (val)
break;
udelay(3);
} while (--timeout);
val &= ~AZX_PPLCCTL_STRST;
- writel(val, stream->pplc_addr + AZX_REG_PPLCCTL);
+ writel(val, hext_stream->pplc_addr + AZX_REG_PPLCCTL);
udelay(3);
timeout = 50;
/* waiting for hardware to report that the stream is out of reset */
do {
- val = readl(stream->pplc_addr + AZX_REG_PPLCCTL) & AZX_PPLCCTL_STRST;
+ val = readl(hext_stream->pplc_addr + AZX_REG_PPLCCTL) & AZX_PPLCCTL_STRST;
if (!val)
break;
udelay(3);
} while (--timeout);
}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_reset);
+EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_reset);
/**
- * snd_hdac_ext_link_stream_setup - set up the SD for streaming
- * @stream: HD-audio ext core stream to set up
+ * snd_hdac_ext_stream_setup - set up the SD for streaming
+ * @hext_stream: HD-audio ext core stream to set up
* @fmt: stream format
*/
-int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *stream, int fmt)
+int snd_hdac_ext_stream_setup(struct hdac_ext_stream *hext_stream, int fmt)
{
- struct hdac_stream *hstream = &stream->hstream;
+ struct hdac_stream *hstream = &hext_stream->hstream;
unsigned int val;
/* make sure the run bit is zero for SD */
- snd_hdac_ext_link_stream_clear(stream);
+ snd_hdac_ext_stream_clear(hext_stream);
/* program the stream_tag */
- val = readl(stream->pplc_addr + AZX_REG_PPLCCTL);
+ val = readl(hext_stream->pplc_addr + AZX_REG_PPLCCTL);
val = (val & ~AZX_PPLCCTL_STRM_MASK) |
(hstream->stream_tag << AZX_PPLCCTL_STRM_SHIFT);
- writel(val, stream->pplc_addr + AZX_REG_PPLCCTL);
+ writel(val, hext_stream->pplc_addr + AZX_REG_PPLCCTL);
/* program the stream format */
- writew(fmt, stream->pplc_addr + AZX_REG_PPLCFMT);
+ writew(fmt, hext_stream->pplc_addr + AZX_REG_PPLCFMT);
return 0;
}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_setup);
-
-/**
- * snd_hdac_ext_link_set_stream_id - maps stream id to link output
- * @link: HD-audio ext link to set up
- * @stream: stream id
- */
-void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
- int stream)
-{
- snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV, (1 << stream), 1 << stream);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_link_set_stream_id);
-
-/**
- * snd_hdac_ext_link_clear_stream_id - maps stream id to link output
- * @link: HD-audio ext link to set up
- * @stream: stream id
- */
-void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
- int stream)
-{
- snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV, (1 << stream), 0);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_link_clear_stream_id);
+EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_setup);
static struct hdac_ext_stream *
-hdac_ext_link_stream_assign(struct hdac_bus *bus,
+hdac_ext_link_dma_stream_assign(struct hdac_bus *bus,
struct snd_pcm_substream *substream)
{
struct hdac_ext_stream *res = NULL;
- struct hdac_stream *stream = NULL;
+ struct hdac_stream *hstream = NULL;
if (!bus->ppcap) {
dev_err(bus->dev, "stream type not supported\n");
return NULL;
}
- list_for_each_entry(stream, &bus->stream_list, list) {
- struct hdac_ext_stream *hstream = container_of(stream,
- struct hdac_ext_stream,
- hstream);
- if (stream->direction != substream->stream)
+ spin_lock_irq(&bus->reg_lock);
+ list_for_each_entry(hstream, &bus->stream_list, list) {
+ struct hdac_ext_stream *hext_stream = container_of(hstream,
+ struct hdac_ext_stream,
+ hstream);
+ if (hstream->direction != substream->stream)
continue;
- /* check if decoupled stream and not in use is available */
- if (hstream->decoupled && !hstream->link_locked) {
- res = hstream;
+ /* check if link stream is available */
+ if (!hext_stream->link_locked) {
+ res = hext_stream;
break;
}
- if (!hstream->link_locked) {
- snd_hdac_ext_stream_decouple(bus, hstream, true);
- res = hstream;
- break;
- }
}
if (res) {
- spin_lock_irq(&bus->reg_lock);
+ snd_hdac_ext_stream_decouple_locked(bus, res, true);
res->link_locked = 1;
res->link_substream = substream;
- spin_unlock_irq(&bus->reg_lock);
}
+ spin_unlock_irq(&bus->reg_lock);
return res;
}
static struct hdac_ext_stream *
-hdac_ext_host_stream_assign(struct hdac_bus *bus,
+hdac_ext_host_dma_stream_assign(struct hdac_bus *bus,
struct snd_pcm_substream *substream)
{
struct hdac_ext_stream *res = NULL;
- struct hdac_stream *stream = NULL;
+ struct hdac_stream *hstream = NULL;
if (!bus->ppcap) {
dev_err(bus->dev, "stream type not supported\n");
return NULL;
}
- list_for_each_entry(stream, &bus->stream_list, list) {
- struct hdac_ext_stream *hstream = container_of(stream,
- struct hdac_ext_stream,
- hstream);
- if (stream->direction != substream->stream)
+ spin_lock_irq(&bus->reg_lock);
+ list_for_each_entry(hstream, &bus->stream_list, list) {
+ struct hdac_ext_stream *hext_stream = container_of(hstream,
+ struct hdac_ext_stream,
+ hstream);
+ if (hstream->direction != substream->stream)
continue;
- if (!stream->opened) {
- if (!hstream->decoupled)
- snd_hdac_ext_stream_decouple(bus, hstream, true);
- res = hstream;
+ if (!hstream->opened) {
+ res = hext_stream;
break;
}
}
if (res) {
- spin_lock_irq(&bus->reg_lock);
+ snd_hdac_ext_stream_decouple_locked(bus, res, true);
res->hstream.opened = 1;
res->hstream.running = 0;
res->hstream.substream = substream;
- spin_unlock_irq(&bus->reg_lock);
}
+ spin_unlock_irq(&bus->reg_lock);
return res;
}
@@ -338,22 +346,23 @@ struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus,
struct snd_pcm_substream *substream,
int type)
{
- struct hdac_ext_stream *hstream = NULL;
- struct hdac_stream *stream = NULL;
+ struct hdac_ext_stream *hext_stream = NULL;
+ struct hdac_stream *hstream = NULL;
switch (type) {
case HDAC_EXT_STREAM_TYPE_COUPLED:
- stream = snd_hdac_stream_assign(bus, substream);
- if (stream)
- hstream = container_of(stream,
- struct hdac_ext_stream, hstream);
- return hstream;
+ hstream = snd_hdac_stream_assign(bus, substream);
+ if (hstream)
+ hext_stream = container_of(hstream,
+ struct hdac_ext_stream,
+ hstream);
+ return hext_stream;
case HDAC_EXT_STREAM_TYPE_HOST:
- return hdac_ext_host_stream_assign(bus, substream);
+ return hdac_ext_host_dma_stream_assign(bus, substream);
case HDAC_EXT_STREAM_TYPE_LINK:
- return hdac_ext_link_stream_assign(bus, substream);
+ return hdac_ext_link_dma_stream_assign(bus, substream);
default:
return NULL;
@@ -363,32 +372,36 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_assign);
/**
* snd_hdac_ext_stream_release - release the assigned stream
- * @stream: HD-audio ext core stream to release
+ * @hext_stream: HD-audio ext core stream to release
* @type: type of stream (coupled, host or link stream)
*
* Release the stream that has been assigned by snd_hdac_ext_stream_assign().
*/
-void snd_hdac_ext_stream_release(struct hdac_ext_stream *stream, int type)
+void snd_hdac_ext_stream_release(struct hdac_ext_stream *hext_stream, int type)
{
- struct hdac_bus *bus = stream->hstream.bus;
+ struct hdac_bus *bus = hext_stream->hstream.bus;
switch (type) {
case HDAC_EXT_STREAM_TYPE_COUPLED:
- snd_hdac_stream_release(&stream->hstream);
+ snd_hdac_stream_release(&hext_stream->hstream);
break;
case HDAC_EXT_STREAM_TYPE_HOST:
- if (stream->decoupled && !stream->link_locked)
- snd_hdac_ext_stream_decouple(bus, stream, false);
- snd_hdac_stream_release(&stream->hstream);
+ spin_lock_irq(&bus->reg_lock);
+ /* couple link only if not in use */
+ if (!hext_stream->link_locked)
+ snd_hdac_ext_stream_decouple_locked(bus, hext_stream, false);
+ snd_hdac_stream_release_locked(&hext_stream->hstream);
+ spin_unlock_irq(&bus->reg_lock);
break;
case HDAC_EXT_STREAM_TYPE_LINK:
- if (stream->decoupled && !stream->hstream.opened)
- snd_hdac_ext_stream_decouple(bus, stream, false);
spin_lock_irq(&bus->reg_lock);
- stream->link_locked = 0;
- stream->link_substream = NULL;
+ /* couple host only if not in use */
+ if (!hext_stream->hstream.opened)
+ snd_hdac_ext_stream_decouple_locked(bus, hext_stream, false);
+ hext_stream->link_locked = 0;
+ hext_stream->link_substream = NULL;
spin_unlock_irq(&bus->reg_lock);
break;
@@ -400,143 +413,41 @@ void snd_hdac_ext_stream_release(struct hdac_ext_stream *stream, int type)
EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_release);
/**
- * snd_hdac_ext_stream_spbcap_enable - enable SPIB for a stream
+ * snd_hdac_ext_cstream_assign - assign a host stream for compress
* @bus: HD-audio core bus
- * @enable: flag to enable/disable SPIB
- * @index: stream index for which SPIB need to be enabled
- */
-void snd_hdac_ext_stream_spbcap_enable(struct hdac_bus *bus,
- bool enable, int index)
-{
- u32 mask = 0;
-
- if (!bus->spbcap) {
- dev_err(bus->dev, "Address of SPB capability is NULL\n");
- return;
- }
-
- mask |= (1 << index);
-
- if (enable)
- snd_hdac_updatel(bus->spbcap, AZX_REG_SPB_SPBFCCTL, mask, mask);
- else
- snd_hdac_updatel(bus->spbcap, AZX_REG_SPB_SPBFCCTL, mask, 0);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_spbcap_enable);
-
-/**
- * snd_hdac_ext_stream_set_spib - sets the spib value of a stream
- * @bus: HD-audio core bus
- * @stream: hdac_ext_stream
- * @value: spib value to set
- */
-int snd_hdac_ext_stream_set_spib(struct hdac_bus *bus,
- struct hdac_ext_stream *stream, u32 value)
-{
-
- if (!bus->spbcap) {
- dev_err(bus->dev, "Address of SPB capability is NULL\n");
- return -EINVAL;
- }
-
- writel(value, stream->spib_addr);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_set_spib);
-
-/**
- * snd_hdac_ext_stream_get_spbmaxfifo - gets the spib value of a stream
- * @bus: HD-audio core bus
- * @stream: hdac_ext_stream
+ * @cstream: Compress stream to assign
*
- * Return maxfifo for the stream
+ * Assign an unused host stream for the given compress stream.
+ * If no stream is free, NULL is returned. Stream is decoupled
+ * before assignment.
*/
-int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_bus *bus,
- struct hdac_ext_stream *stream)
+struct hdac_ext_stream *snd_hdac_ext_cstream_assign(struct hdac_bus *bus,
+ struct snd_compr_stream *cstream)
{
+ struct hdac_ext_stream *res = NULL;
+ struct hdac_stream *hstream;
- if (!bus->spbcap) {
- dev_err(bus->dev, "Address of SPB capability is NULL\n");
- return -EINVAL;
- }
-
- return readl(stream->fifo_addr);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_get_spbmaxfifo);
-
-
-/**
- * snd_hdac_ext_stop_streams - stop all stream if running
- * @bus: HD-audio core bus
- */
-void snd_hdac_ext_stop_streams(struct hdac_bus *bus)
-{
- struct hdac_stream *stream;
-
- if (bus->chip_init) {
- list_for_each_entry(stream, &bus->stream_list, list)
- snd_hdac_stream_stop(stream);
- snd_hdac_bus_stop_chip(bus);
- }
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stop_streams);
+ spin_lock_irq(&bus->reg_lock);
+ list_for_each_entry(hstream, &bus->stream_list, list) {
+ struct hdac_ext_stream *hext_stream = stream_to_hdac_ext_stream(hstream);
-/**
- * snd_hdac_ext_stream_drsm_enable - enable DMA resume for a stream
- * @bus: HD-audio core bus
- * @enable: flag to enable/disable DRSM
- * @index: stream index for which DRSM need to be enabled
- */
-void snd_hdac_ext_stream_drsm_enable(struct hdac_bus *bus,
- bool enable, int index)
-{
- u32 mask = 0;
+ if (hstream->direction != cstream->direction)
+ continue;
- if (!bus->drsmcap) {
- dev_err(bus->dev, "Address of DRSM capability is NULL\n");
- return;
+ if (!hstream->opened) {
+ res = hext_stream;
+ break;
+ }
}
- mask |= (1 << index);
-
- if (enable)
- snd_hdac_updatel(bus->drsmcap, AZX_REG_DRSM_CTL, mask, mask);
- else
- snd_hdac_updatel(bus->drsmcap, AZX_REG_DRSM_CTL, mask, 0);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_drsm_enable);
-
-/**
- * snd_hdac_ext_stream_set_dpibr - sets the dpibr value of a stream
- * @bus: HD-audio core bus
- * @stream: hdac_ext_stream
- * @value: dpib value to set
- */
-int snd_hdac_ext_stream_set_dpibr(struct hdac_bus *bus,
- struct hdac_ext_stream *stream, u32 value)
-{
-
- if (!bus->drsmcap) {
- dev_err(bus->dev, "Address of DRSM capability is NULL\n");
- return -EINVAL;
+ if (res) {
+ snd_hdac_ext_stream_decouple_locked(bus, res, true);
+ res->hstream.opened = 1;
+ res->hstream.running = 0;
+ res->hstream.cstream = cstream;
}
+ spin_unlock_irq(&bus->reg_lock);
- writel(value, stream->dpibr_addr);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_set_dpibr);
-
-/**
- * snd_hdac_ext_stream_set_lpib - sets the lpib value of a stream
- * @stream: hdac_ext_stream
- * @value: lpib value to set
- */
-int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *stream, u32 value)
-{
- snd_hdac_stream_writel(&stream->hstream, SD_LPIB, value);
-
- return 0;
+ return res;
}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_set_lpib);
+EXPORT_SYMBOL_GPL(snd_hdac_ext_cstream_assign);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.