1 files changed, 0 insertions, 332 deletions
diff --git a/sound/hda/ext/hdac_ext_controller.c b/sound/hda/ext/hdac_ext_controller.c
deleted file mode 100644
index 4d060d5b1db6..000000000000
--- a/sound/hda/ext/hdac_ext_controller.c
+++ /dev/null
@@ -1,332 +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/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
- */
-
-/**
- * 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;
-
-	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);
-
-		/* 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_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)
-{
-	struct hdac_ext_link *l;
-
-	while (!list_empty(&bus->hlink_list)) {
-		l = list_first_entry(&bus->hlink_list, struct hdac_ext_link, list);
-		list_del(&l->list);
-		kfree(l);
-	}
-}
-EXPORT_SYMBOL_GPL(snd_hdac_link_free_all);
-
-/**
- * snd_hdac_ext_bus_get_link_index - get link 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)
-{
-	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;
-
-	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;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_link);
-
-static int check_hdac_link_power_active(struct hdac_ext_link *link, bool enable)
-{
-	int timeout;
-	u32 val;
-	int mask = (1 << AZX_MLCTL_CPA_SHIFT);
-
-	udelay(3);
-	timeout = 150;
-
-	do {
-		val = readl(link->ml_addr + AZX_REG_ML_LCTL);
-		if (enable) {
-			if (((val & mask) >> AZX_MLCTL_CPA_SHIFT))
-				return 0;
-		} else {
-			if (!((val & mask) >> AZX_MLCTL_CPA_SHIFT))
-				return 0;
-		}
-		udelay(3);
-	} while (--timeout);
-
-	return -EIO;
-}
-
-/**
- * snd_hdac_ext_bus_link_power_up -power up hda link
- * @link: HD-audio extended link
- */
-int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link)
-{
-	snd_hdac_updatel(link->ml_addr, AZX_REG_ML_LCTL,
-			 AZX_MLCTL_SPA, AZX_MLCTL_SPA);
-
-	return check_hdac_link_power_active(link, 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
- */
-int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link)
-{
-	snd_hdac_updatel(link->ml_addr, AZX_REG_ML_LCTL, AZX_MLCTL_SPA, 0);
-
-	return check_hdac_link_power_active(link, 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) {
-		snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL,
-				 AZX_MLCTL_SPA, AZX_MLCTL_SPA);
-		ret = check_hdac_link_power_active(hlink, true);
-		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) {
-		snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL,
-				 AZX_MLCTL_SPA, 0);
-		ret = check_hdac_link_power_active(hlink, false);
-		if (ret < 0)
-			return ret;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_down_all);
-
-int snd_hdac_ext_bus_link_get(struct hdac_bus *bus,
-				struct hdac_ext_link *link)
-{
-	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 (++link->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);
-
-		/*
-		 * clear the register to invalidate all the output streams
-		 */
-		snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV,
-				 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 *link)
-{
-	int ret = 0;
-	struct hdac_ext_link *hlink;
-	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 (--link->ref_count == 0) {
-		ret = snd_hdac_ext_bus_link_power_down(link);
-
-		/*
-		 * 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) {
-				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);