1 files changed, 0 insertions, 453 deletions

diff --git a/sound/hda/ext/hdac_ext_stream.c b/sound/hda/ext/hdac_ext_stream.c
deleted file mode 100644
index a3ac738f1130..000000000000
--- a/sound/hda/ext/hdac_ext_stream.c
+++ /dev/null
@@ -1,453 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- *  hdac-ext-stream.c - HD-audio extended stream operations.
- *
- *  Copyright (C) 2015 Intel Corp
- *  Author: Jeeja KP <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
-
-#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
- * @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
- *
- * initialize the stream, if ppcap is enabled then init those and then
- * invoke hdac stream initialization routine
- */
-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) {
-		hext_stream->pphc_addr = bus->ppcap + AZX_PPHC_BASE +
-				AZX_PPHC_INTERVAL * idx;
-
-		hext_stream->pplc_addr = bus->ppcap + AZX_PPLC_BASE +
-				AZX_PPLC_MULTI * bus->num_streams +
-				AZX_PPLC_INTERVAL * idx;
-	}
-
-	hext_stream->decoupled = false;
-	snd_hdac_stream_init(bus, &hext_stream->hstream, idx, direction, tag);
-}
-
-/**
- * snd_hdac_ext_stream_init_all - create and initialize the stream objects
- *   for an extended hda bus
- * @bus: HD-audio core bus
- * @start_idx: start index for streams
- * @num_stream: number of streams to initialize
- * @dir: direction of streams
- */
-int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx,
-				 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 *hext_stream =
-				kzalloc(sizeof(*hext_stream), GFP_KERNEL);
-		if (!hext_stream)
-			return -ENOMEM;
-		tag = ++stream_tag;
-		snd_hdac_ext_stream_init(bus, hext_stream, idx, dir, tag);
-		idx++;
-		hext_stream->host_setup = setup_op;
-	}
-
-	return 0;
-
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_init_all);
-
-/**
- * snd_hdac_ext_stream_free_all - free hdac extended stream objects
- *
- * @bus: HD-audio core bus
- */
-void snd_hdac_ext_stream_free_all(struct hdac_bus *bus)
-{
-	struct hdac_stream *s, *_s;
-	struct hdac_ext_stream *hext_stream;
-
-	list_for_each_entry_safe(s, _s, &bus->stream_list, list) {
-		hext_stream = stream_to_hdac_ext_stream(s);
-		snd_hdac_ext_stream_decouple(bus, hext_stream, false);
-		list_del(&s->list);
-		kfree(hext_stream);
-	}
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_free_all);
-
-void snd_hdac_ext_stream_decouple_locked(struct hdac_bus *bus,
-					 struct hdac_ext_stream *hext_stream,
-					 bool decouple)
-{
-	struct hdac_stream *hstream = &hext_stream->hstream;
-	u32 val;
-	int mask = AZX_PPCTL_PROCEN(hstream->index);
-
-	val = readw(bus->ppcap + AZX_REG_PP_PPCTL) & mask;
-
-	if (decouple && !val)
-		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, mask, mask);
-	else if (!decouple && val)
-		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, mask, 0);
-
-	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_stream_start - start a stream
- * @hext_stream: HD-audio ext core stream to start
- */
-void snd_hdac_ext_stream_start(struct hdac_ext_stream *hext_stream)
-{
-	snd_hdac_updatel(hext_stream->pplc_addr, AZX_REG_PPLCCTL,
-			 AZX_PPLCCTL_RUN, AZX_PPLCCTL_RUN);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_start);
-
-/**
- * snd_hdac_ext_stream_clear - stop a stream DMA
- * @hext_stream: HD-audio ext core stream to stop
- */
-void snd_hdac_ext_stream_clear(struct hdac_ext_stream *hext_stream)
-{
-	snd_hdac_updatel(hext_stream->pplc_addr, AZX_REG_PPLCCTL, AZX_PPLCCTL_RUN, 0);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_clear);
-
-/**
- * snd_hdac_ext_stream_reset - reset a stream
- * @hext_stream: HD-audio ext core stream to reset
- */
-void snd_hdac_ext_stream_reset(struct hdac_ext_stream *hext_stream)
-{
-	unsigned char val;
-	int timeout;
-
-	snd_hdac_ext_stream_clear(hext_stream);
-
-	snd_hdac_updatel(hext_stream->pplc_addr, AZX_REG_PPLCCTL,
-			 AZX_PPLCCTL_STRST, AZX_PPLCCTL_STRST);
-	udelay(3);
-	timeout = 50;
-	do {
-		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, 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(hext_stream->pplc_addr + AZX_REG_PPLCCTL) & AZX_PPLCCTL_STRST;
-		if (!val)
-			break;
-		udelay(3);
-	} while (--timeout);
-
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_reset);
-
-/**
- * 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_stream_setup(struct hdac_ext_stream *hext_stream, int fmt)
-{
-	struct hdac_stream *hstream = &hext_stream->hstream;
-	unsigned int val;
-
-	/* make sure the run bit is zero for SD */
-	snd_hdac_ext_stream_clear(hext_stream);
-	/* program the stream_tag */
-	val = readl(hext_stream->pplc_addr + AZX_REG_PPLCCTL);
-	val = (val & ~AZX_PPLCCTL_STRM_MASK) |
-		(hstream->stream_tag << AZX_PPLCCTL_STRM_SHIFT);
-	writel(val, hext_stream->pplc_addr + AZX_REG_PPLCCTL);
-
-	/* program the stream format */
-	writew(fmt, hext_stream->pplc_addr + AZX_REG_PPLCFMT);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_setup);
-
-static struct hdac_ext_stream *
-hdac_ext_link_dma_stream_assign(struct hdac_bus *bus,
-				struct snd_pcm_substream *substream)
-{
-	struct hdac_ext_stream *res = NULL;
-	struct hdac_stream *hstream = NULL;
-
-	if (!bus->ppcap) {
-		dev_err(bus->dev, "stream type not supported\n");
-		return NULL;
-	}
-
-	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 link stream is available */
-		if (!hext_stream->link_locked) {
-			res = hext_stream;
-			break;
-		}
-
-	}
-	if (res) {
-		snd_hdac_ext_stream_decouple_locked(bus, res, true);
-		res->link_locked = 1;
-		res->link_substream = substream;
-	}
-	spin_unlock_irq(&bus->reg_lock);
-	return res;
-}
-
-static struct hdac_ext_stream *
-hdac_ext_host_dma_stream_assign(struct hdac_bus *bus,
-				struct snd_pcm_substream *substream)
-{
-	struct hdac_ext_stream *res = NULL;
-	struct hdac_stream *hstream = NULL;
-
-	if (!bus->ppcap) {
-		dev_err(bus->dev, "stream type not supported\n");
-		return NULL;
-	}
-
-	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 (!hstream->opened) {
-			res = hext_stream;
-			break;
-		}
-	}
-	if (res) {
-		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);
-
-	return res;
-}
-
-/**
- * snd_hdac_ext_stream_assign - assign a stream for the PCM
- * @bus: HD-audio core bus
- * @substream: PCM substream to assign
- * @type: type of stream (coupled, host or link stream)
- *
- * This assigns the stream based on the type (coupled/host/link), for the
- * given PCM substream, assigns it and returns the stream object
- *
- * coupled: Looks for an unused stream
- * host: Looks for an unused decoupled host stream
- * link: Looks for an unused decoupled link stream
- *
- * If no stream is free, returns NULL. The function tries to keep using
- * the same stream object when it's used beforehand.  when a stream is
- * decoupled, it becomes a host stream and link stream.
- */
-struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus,
-					   struct snd_pcm_substream *substream,
-					   int type)
-{
-	struct hdac_ext_stream *hext_stream = NULL;
-	struct hdac_stream *hstream = NULL;
-
-	switch (type) {
-	case HDAC_EXT_STREAM_TYPE_COUPLED:
-		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_dma_stream_assign(bus, substream);
-
-	case HDAC_EXT_STREAM_TYPE_LINK:
-		return hdac_ext_link_dma_stream_assign(bus, substream);
-
-	default:
-		return NULL;
-	}
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_assign);
-
-/**
- * snd_hdac_ext_stream_release - release the assigned stream
- * @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 *hext_stream, int type)
-{
-	struct hdac_bus *bus = hext_stream->hstream.bus;
-
-	switch (type) {
-	case HDAC_EXT_STREAM_TYPE_COUPLED:
-		snd_hdac_stream_release(&hext_stream->hstream);
-		break;
-
-	case HDAC_EXT_STREAM_TYPE_HOST:
-		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:
-		spin_lock_irq(&bus->reg_lock);
-		/* 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;
-
-	default:
-		dev_dbg(bus->dev, "Invalid type %d\n", type);
-	}
-
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_release);
-
-/**
- * snd_hdac_ext_cstream_assign - assign a host stream for compress
- * @bus: HD-audio core bus
- * @cstream: Compress stream to assign
- *
- * Assign an unused host stream for the given compress stream.
- * If no stream is free, NULL is returned. Stream is decoupled
- * before assignment.
- */
-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;
-
-	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);
-
-		if (hstream->direction != cstream->direction)
-			continue;
-
-		if (!hstream->opened) {
-			res = hext_stream;
-			break;
-		}
-	}
-
-	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);
-
-	return res;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_cstream_assign);