1 files changed, 0 insertions, 412 deletions
diff --git a/sound/hda/ext/hdac_ext_controller.c b/sound/hda/ext/hdac_ext_controller.c
deleted file mode 100644
index c84754434d16..000000000000
--- a/sound/hda/ext/hdac_ext_controller.c
+++ /dev/null
@@ -1,412 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- *  hdac-ext-controller.c - HD-audio extended controller functions.
- *
- *  Copyright (C) 2014-2015 Intel Corp
- *  Author: Jeeja KP <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
-
-#include <linux/bitfield.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <sound/hda_register.h>
-#include <sound/hdaudio_ext.h>
-
-/*
- * processing pipe helpers - these helpers are useful for dealing with HDA
- * new capability of processing pipelines
- */
-
-/**
- * snd_hdac_ext_bus_ppcap_enable - enable/disable processing pipe capability
- * @bus: the pointer to HDAC bus object
- * @enable: flag to turn on/off the capability
- */
-void snd_hdac_ext_bus_ppcap_enable(struct hdac_bus *bus, bool enable)
-{
-
-	if (!bus->ppcap) {
-		dev_err(bus->dev, "Address of PP capability is NULL");
-		return;
-	}
-
-	if (enable)
-		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL,
-				 AZX_PPCTL_GPROCEN, AZX_PPCTL_GPROCEN);
-	else
-		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL,
-				 AZX_PPCTL_GPROCEN, 0);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_ppcap_enable);
-
-/**
- * snd_hdac_ext_bus_ppcap_int_enable - ppcap interrupt enable/disable
- * @bus: the pointer to HDAC bus object
- * @enable: flag to enable/disable interrupt
- */
-void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_bus *bus, bool enable)
-{
-
-	if (!bus->ppcap) {
-		dev_err(bus->dev, "Address of PP capability is NULL\n");
-		return;
-	}
-
-	if (enable)
-		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL,
-				 AZX_PPCTL_PIE, AZX_PPCTL_PIE);
-	else
-		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL,
-				 AZX_PPCTL_PIE, 0);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_ppcap_int_enable);
-
-/*
- * Multilink helpers - these helpers are useful for dealing with HDA
- * new multilink capability
- */
-
-/**
- * snd_hdac_ext_bus_get_ml_capabilities - get multilink capability
- * @bus: the pointer to HDAC bus object
- *
- * This will parse all links and read the mlink capabilities and add them
- * in hlink_list of extended hdac bus
- * Note: this will be freed on bus exit by driver
- */
-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;
-
-	dev_dbg(bus->dev, "In %s Link count: %d\n", __func__, link_count);
-
-	for (idx = 0; idx < link_count; idx++) {
-		hlink  = kzalloc(sizeof(*hlink), GFP_KERNEL);
-		if (!hlink)
-			return -ENOMEM;
-		hlink->index = idx;
-		hlink->bus = bus;
-		hlink->ml_addr = bus->mlcap + AZX_ML_BASE +
-					(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;
-
-		list_add_tail(&hlink->list, &bus->hlink_list);
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_ml_capabilities);
-
-/**
- * snd_hdac_ext_link_free_all- free hdac extended link objects
- *
- * @bus: the pointer to HDAC bus object
- */
-
-void snd_hdac_ext_link_free_all(struct hdac_bus *bus)
-{
-	struct hdac_ext_link *hlink;
-
-	while (!list_empty(&bus->hlink_list)) {
-		hlink = list_first_entry(&bus->hlink_list, struct hdac_ext_link, list);
-		list_del(&hlink->list);
-		kfree(hlink);
-	}
-}
-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_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_hlink_by_name(struct hdac_bus *bus,
-							 const char *codec_name)
-{
-	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;
-
-	return snd_hdac_ext_bus_get_hlink_by_addr(bus, addr);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_hlink_by_name);
-
-static int check_hdac_link_power_active(struct hdac_ext_link *hlink, bool enable)
-{
-	int timeout;
-	u32 val;
-	int mask = (1 << AZX_ML_LCTL_CPA_SHIFT);
-
-	udelay(3);
-	timeout = 150;
-
-	do {
-		val = readl(hlink->ml_addr + AZX_REG_ML_LCTL);
-		if (enable) {
-			if (((val & mask) >> AZX_ML_LCTL_CPA_SHIFT))
-				return 0;
-		} else {
-			if (!((val & mask) >> AZX_ML_LCTL_CPA_SHIFT))
-				return 0;
-		}
-		udelay(3);
-	} while (--timeout);
-
-	return -EIO;
-}
-
-/**
- * snd_hdac_ext_bus_link_power_up -power up hda link
- * @hlink: HD-audio extended link
- */
-int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *hlink)
-{
-	snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL,
-			 AZX_ML_LCTL_SPA, AZX_ML_LCTL_SPA);
-
-	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
- * @hlink: HD-audio extended link
- */
-int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *hlink)
-{
-	snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL, AZX_ML_LCTL_SPA, 0);
-
-	return check_hdac_link_power_active(hlink, false);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_down);
-
-/**
- * snd_hdac_ext_bus_link_power_up_all -power up all hda link
- * @bus: the pointer to HDAC bus object
- */
-int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus)
-{
-	struct hdac_ext_link *hlink = NULL;
-	int ret;
-
-	list_for_each_entry(hlink, &bus->hlink_list, list) {
-		ret = snd_hdac_ext_bus_link_power_up(hlink);
-		if (ret < 0)
-			return ret;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_up_all);
-
-/**
- * snd_hdac_ext_bus_link_power_down_all -power down all hda link
- * @bus: the pointer to HDAC bus object
- */
-int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus)
-{
-	struct hdac_ext_link *hlink = NULL;
-	int ret;
-
-	list_for_each_entry(hlink, &bus->hlink_list, list) {
-		ret = snd_hdac_ext_bus_link_power_down(hlink);
-		if (ret < 0)
-			return ret;
-	}
-
-	return 0;
-}
-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 *hlink)
-{
-	unsigned long codec_mask;
-	int ret = 0;
-
-	mutex_lock(&bus->lock);
-
-	/*
-	 * 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 (++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(hlink);
-
-		/*
-		 * clear the register to invalidate all the output streams
-		 */
-		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
-		 */
-		udelay(521);
-		codec_mask = snd_hdac_chip_readw(bus, STATESTS);
-		dev_dbg(bus->dev, "codec_mask = 0x%lx\n", codec_mask);
-		snd_hdac_chip_writew(bus, STATESTS, codec_mask);
-		if (!bus->codec_mask)
-			bus->codec_mask = codec_mask;
-	}
-
-	mutex_unlock(&bus->lock);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_get);
-
-int snd_hdac_ext_bus_link_put(struct hdac_bus *bus,
-			      struct hdac_ext_link *hlink)
-{
-	int ret = 0;
-	struct hdac_ext_link *hlink_tmp;
-	bool link_up = false;
-
-	mutex_lock(&bus->lock);
-
-	/*
-	 * if we move from 1 to 0, count will be 0
-	 * so power down this link as well
-	 */
-	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_tmp, &bus->hlink_list, list) {
-			if (hlink_tmp->ref_count) {
-				link_up = true;
-				break;
-			}
-		}
-
-		if (!link_up) {
-			snd_hdac_bus_stop_cmd_io(bus);
-			bus->cmd_dma_state = false;
-		}
-	}
-
-	mutex_unlock(&bus->lock);
-	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);