1 files changed, 0 insertions, 573 deletions
diff --git a/sound/hda/ext/hdac_ext_stream.c b/sound/hda/ext/hdac_ext_stream.c
deleted file mode 100644
index c96d7a7a36af..000000000000
--- a/sound/hda/ext/hdac_ext_stream.c
+++ /dev/null
@@ -1,573 +0,0 @@
-/*
- *  hdac-ext-stream.c - HD-audio extended stream operations.
- *
- *  Copyright (C) 2015 Intel Corp
- *  Author: Jeeja KP <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
-
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <sound/pcm.h>
-#include <sound/hda_register.h>
-#include <sound/hdaudio_ext.h>
-
-/**
- * snd_hdac_ext_stream_init - initialize each stream (aka device)
- * @ebus: HD-audio ext core bus
- * @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
- */
-void snd_hdac_ext_stream_init(struct hdac_ext_bus *ebus,
-				struct hdac_ext_stream *stream,
-				int idx, int direction, int tag)
-{
-	struct hdac_bus *bus = &ebus->bus;
-
-	if (bus->ppcap) {
-		stream->pphc_addr = bus->ppcap + AZX_PPHC_BASE +
-				AZX_PPHC_INTERVAL * idx;
-
-		stream->pplc_addr = bus->ppcap + AZX_PPLC_BASE +
-				AZX_PPLC_MULTI * ebus->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);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_init);
-
-/**
- * snd_hdac_ext_stream_init_all - create and initialize the stream objects
- *   for an extended hda bus
- * @ebus: HD-audio ext 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_ext_bus *ebus, int start_idx,
-		int num_stream, int dir)
-{
-	int stream_tag = 0;
-	int i, tag, idx = start_idx;
-
-	for (i = 0; i < num_stream; i++) {
-		struct hdac_ext_stream *stream =
-				kzalloc(sizeof(*stream), GFP_KERNEL);
-		if (!stream)
-			return -ENOMEM;
-		tag = ++stream_tag;
-		snd_hdac_ext_stream_init(ebus, stream, idx, dir, tag);
-		idx++;
-	}
-
-	return 0;
-
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_init_all);
-
-/**
- * snd_hdac_stream_free_all - free hdac extended stream objects
- *
- * @ebus: HD-audio ext core bus
- */
-void snd_hdac_stream_free_all(struct hdac_ext_bus *ebus)
-{
-	struct hdac_stream *s, *_s;
-	struct hdac_ext_stream *stream;
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
-
-	list_for_each_entry_safe(s, _s, &bus->stream_list, list) {
-		stream = stream_to_hdac_ext_stream(s);
-		snd_hdac_ext_stream_decouple(ebus, stream, false);
-		list_del(&s->list);
-		kfree(stream);
-	}
-}
-EXPORT_SYMBOL_GPL(snd_hdac_stream_free_all);
-
-/**
- * snd_hdac_ext_stream_decouple - decouple the hdac stream
- * @ebus: HD-audio ext core bus
- * @stream: HD-audio ext core stream object to initialize
- * @decouple: flag to decouple
- */
-void snd_hdac_ext_stream_decouple(struct hdac_ext_bus *ebus,
-				struct hdac_ext_stream *stream, bool decouple)
-{
-	struct hdac_stream *hstream = &stream->hstream;
-	struct hdac_bus *bus = &ebus->bus;
-	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)
-		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);
-
-	stream->decoupled = 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
- */
-void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *stream)
-{
-	snd_hdac_updatel(stream->pplc_addr, AZX_REG_PPLCCTL, 0, AZX_PPLCCTL_RUN);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_start);
-
-/**
- * snd_hdac_ext_link_stream_clear - stop a stream DMA
- * @stream: HD-audio ext core stream to stop
- */
-void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *stream)
-{
-	snd_hdac_updatel(stream->pplc_addr, AZX_REG_PPLCCTL, AZX_PPLCCTL_RUN, 0);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_clear);
-
-/**
- * snd_hdac_ext_link_stream_reset - reset a stream
- * @stream: HD-audio ext core stream to reset
- */
-void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *stream)
-{
-	unsigned char val;
-	int timeout;
-
-	snd_hdac_ext_link_stream_clear(stream);
-
-	snd_hdac_updatel(stream->pplc_addr, AZX_REG_PPLCCTL, 0, AZX_PPLCCTL_STRST);
-	udelay(3);
-	timeout = 50;
-	do {
-		val = readl(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);
-	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;
-		if (!val)
-			break;
-		udelay(3);
-	} while (--timeout);
-
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_reset);
-
-/**
- * snd_hdac_ext_link_stream_setup -  set up the SD for streaming
- * @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)
-{
-	struct hdac_stream *hstream = &stream->hstream;
-	unsigned int val;
-
-	/* make sure the run bit is zero for SD */
-	snd_hdac_ext_link_stream_clear(stream);
-	/* program the stream_tag */
-	val = readl(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);
-
-	/* program the stream format */
-	writew(fmt, 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, 0, (1 << stream));
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_link_clear_stream_id);
-
-static struct hdac_ext_stream *
-hdac_ext_link_stream_assign(struct hdac_ext_bus *ebus,
-				struct snd_pcm_substream *substream)
-{
-	struct hdac_ext_stream *res = NULL;
-	struct hdac_stream *stream = NULL;
-	struct hdac_bus *hbus = &ebus->bus;
-
-	if (!hbus->ppcap) {
-		dev_err(hbus->dev, "stream type not supported\n");
-		return NULL;
-	}
-
-	list_for_each_entry(stream, &hbus->stream_list, list) {
-		struct hdac_ext_stream *hstream = container_of(stream,
-						struct hdac_ext_stream,
-						hstream);
-		if (stream->direction != substream->stream)
-			continue;
-
-		/* check if decoupled stream and not in use is available */
-		if (hstream->decoupled && !hstream->link_locked) {
-			res = hstream;
-			break;
-		}
-
-		if (!hstream->link_locked) {
-			snd_hdac_ext_stream_decouple(ebus, hstream, true);
-			res = hstream;
-			break;
-		}
-	}
-	if (res) {
-		spin_lock_irq(&hbus->reg_lock);
-		res->link_locked = 1;
-		res->link_substream = substream;
-		spin_unlock_irq(&hbus->reg_lock);
-	}
-	return res;
-}
-
-static struct hdac_ext_stream *
-hdac_ext_host_stream_assign(struct hdac_ext_bus *ebus,
-				struct snd_pcm_substream *substream)
-{
-	struct hdac_ext_stream *res = NULL;
-	struct hdac_stream *stream = NULL;
-	struct hdac_bus *hbus = &ebus->bus;
-
-	if (!hbus->ppcap) {
-		dev_err(hbus->dev, "stream type not supported\n");
-		return NULL;
-	}
-
-	list_for_each_entry(stream, &hbus->stream_list, list) {
-		struct hdac_ext_stream *hstream = container_of(stream,
-						struct hdac_ext_stream,
-						hstream);
-		if (stream->direction != substream->stream)
-			continue;
-
-		if (!stream->opened) {
-			if (!hstream->decoupled)
-				snd_hdac_ext_stream_decouple(ebus, hstream, true);
-			res = hstream;
-			break;
-		}
-	}
-	if (res) {
-		spin_lock_irq(&hbus->reg_lock);
-		res->hstream.opened = 1;
-		res->hstream.running = 0;
-		res->hstream.substream = substream;
-		spin_unlock_irq(&hbus->reg_lock);
-	}
-
-	return res;
-}
-
-/**
- * snd_hdac_ext_stream_assign - assign a stream for the PCM
- * @ebus: HD-audio ext 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_ext_bus *ebus,
-					   struct snd_pcm_substream *substream,
-					   int type)
-{
-	struct hdac_ext_stream *hstream = NULL;
-	struct hdac_stream *stream = NULL;
-	struct hdac_bus *hbus = &ebus->bus;
-
-	switch (type) {
-	case HDAC_EXT_STREAM_TYPE_COUPLED:
-		stream = snd_hdac_stream_assign(hbus, substream);
-		if (stream)
-			hstream = container_of(stream,
-					struct hdac_ext_stream, hstream);
-		return hstream;
-
-	case HDAC_EXT_STREAM_TYPE_HOST:
-		return hdac_ext_host_stream_assign(ebus, substream);
-
-	case HDAC_EXT_STREAM_TYPE_LINK:
-		return hdac_ext_link_stream_assign(ebus, substream);
-
-	default:
-		return NULL;
-	}
-}
-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
- * @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)
-{
-	struct hdac_bus *bus = stream->hstream.bus;
-	struct hdac_ext_bus *ebus = hbus_to_ebus(bus);
-
-	switch (type) {
-	case HDAC_EXT_STREAM_TYPE_COUPLED:
-		snd_hdac_stream_release(&stream->hstream);
-		break;
-
-	case HDAC_EXT_STREAM_TYPE_HOST:
-		if (stream->decoupled && !stream->link_locked)
-			snd_hdac_ext_stream_decouple(ebus, stream, false);
-		snd_hdac_stream_release(&stream->hstream);
-		break;
-
-	case HDAC_EXT_STREAM_TYPE_LINK:
-		if (stream->decoupled && !stream->hstream.opened)
-			snd_hdac_ext_stream_decouple(ebus, stream, false);
-		spin_lock_irq(&bus->reg_lock);
-		stream->link_locked = 0;
-		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_stream_spbcap_enable - enable SPIB for a stream
- * @ebus: HD-audio ext 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_ext_bus *ebus,
-				 bool enable, int index)
-{
-	u32 mask = 0;
-	u32 register_mask = 0;
-	struct hdac_bus *bus = &ebus->bus;
-
-	if (!bus->spbcap) {
-		dev_err(bus->dev, "Address of SPB capability is NULL\n");
-		return;
-	}
-
-	mask |= (1 << index);
-
-	register_mask = readl(bus->spbcap + AZX_REG_SPB_SPBFCCTL);
-
-	mask |= register_mask;
-
-	if (enable)
-		snd_hdac_updatel(bus->spbcap, AZX_REG_SPB_SPBFCCTL, 0, 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
- * @ebus: HD-audio ext core bus
- * @stream: hdac_ext_stream
- * @value: spib value to set
- */
-int snd_hdac_ext_stream_set_spib(struct hdac_ext_bus *ebus,
-				 struct hdac_ext_stream *stream, u32 value)
-{
-	struct hdac_bus *bus = &ebus->bus;
-
-	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
- * @ebus: HD-audio ext core bus
- * @stream: hdac_ext_stream
- *
- * Return maxfifo for the stream
- */
-int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_ext_bus *ebus,
-				 struct hdac_ext_stream *stream)
-{
-	struct hdac_bus *bus = &ebus->bus;
-
-	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
- * @ebus: HD-audio ext core bus
- */
-void snd_hdac_ext_stop_streams(struct hdac_ext_bus *ebus)
-{
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
-	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);
-
-/**
- * snd_hdac_ext_stream_drsm_enable - enable DMA resume for a stream
- * @ebus: HD-audio ext 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_ext_bus *ebus,
-				bool enable, int index)
-{
-	u32 mask = 0;
-	u32 register_mask = 0;
-	struct hdac_bus *bus = &ebus->bus;
-
-	if (!bus->drsmcap) {
-		dev_err(bus->dev, "Address of DRSM capability is NULL\n");
-		return;
-	}
-
-	mask |= (1 << index);
-
-	register_mask = readl(bus->drsmcap + AZX_REG_SPB_SPBFCCTL);
-
-	mask |= register_mask;
-
-	if (enable)
-		snd_hdac_updatel(bus->drsmcap, AZX_REG_DRSM_CTL, 0, 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
- * @ebus: HD-audio ext core bus
- * @stream: hdac_ext_stream
- * @value: dpib value to set
- */
-int snd_hdac_ext_stream_set_dpibr(struct hdac_ext_bus *ebus,
-				 struct hdac_ext_stream *stream, u32 value)
-{
-	struct hdac_bus *bus = &ebus->bus;
-
-	if (!bus->drsmcap) {
-		dev_err(bus->dev, "Address of DRSM capability is NULL\n");
-		return -EINVAL;
-	}
-
-	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
- * @ebus: HD-audio ext core bus
- * @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;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_set_lpib);