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Commit 19ef2608 authored by Ashish Jain's avatar Ashish Jain Committed by Gerrit - the friendly Code Review server
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ASoC: ipc: Enable wcd glink driver for BG 



Enable wcd glink driver for platform with BG support. Also
add support to configure the glink edge which is used
for glink communication between the msm and the target
device.

Change-Id: I1b4a888a40a8f4187bc384494fe3ac97a864756a
Signed-off-by: default avatarAshish Jain <ashishj@codeaurora.org>
Signed-off-by: default avatarSundara Vinayagam <sundvi@codeaurora.org>
parent 321d5715

ipc/wcd-dsp-glink.c

+23 −5
Original line number Diff line number Diff line 
/* Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.

/* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -22,6 +22,7 @@ 
#include <linux/cdev.h>

#include <linux/platform_device.h>

#include <linux/vmalloc.h>

#include <linux/of_device.h>

#include <soc/qcom/glink.h>

#include "sound/wcd-dsp-glink.h"
@@ -40,12 +41,14 @@ 
#define RESP_QUEUE_SIZE 3

#define QOS_PKT_SIZE 1024

#define TIMEOUT_MS 1000

#define GLINK_EDGE_MAX 16



struct wdsp_glink_dev {

	struct class *cls;

	struct device *dev;

	struct cdev cdev;

	dev_t dev_num;

	char glink_edge[GLINK_EDGE_MAX];

};



struct wdsp_glink_rsp_que {
@@ -116,6 +119,7 @@ struct wdsp_glink_priv { 
	u8 no_of_channels;

	struct work_struct ch_open_cls_wrk;

	struct workqueue_struct *work_queue;

	const char *glink_edge;



	wait_queue_head_t link_state_wait;
@@ -431,7 +435,7 @@ static int wdsp_glink_open_ch(struct wdsp_glink_ch *ch) 
	if (!ch->handle) {

		memset(&open_cfg, 0, sizeof(open_cfg));

		open_cfg.options = GLINK_OPT_INITIAL_XPORT;

		open_cfg.edge = WDSP_EDGE;

		open_cfg.edge = wpriv->glink_edge;

		open_cfg.notify_rx = wdsp_glink_notify_rx;

		open_cfg.notify_tx_done = wdsp_glink_notify_tx_done;

		open_cfg.notify_tx_abort = wdsp_glink_notify_tx_abort;
@@ -541,10 +545,8 @@ static void wdsp_glink_link_state_cb(struct glink_link_state_cb_info *cb_info, 


	wpriv = (struct wdsp_glink_priv *)priv;



	mutex_lock(&wpriv->glink_mutex);

	wpriv->glink_state.link_state = cb_info->link_state;

	wake_up(&wpriv->link_state_wait);

	mutex_unlock(&wpriv->glink_mutex);



	queue_work(wpriv->work_queue, &wpriv->ch_open_cls_wrk);

}
@@ -661,7 +663,7 @@ static int wdsp_glink_ch_info_init(struct wdsp_glink_priv *wpriv, 
	/* Register glink link_state notification */

	link_info.glink_link_state_notif_cb = wdsp_glink_link_state_cb;

	link_info.transport = NULL;

	link_info.edge = WDSP_EDGE;

	link_info.edge = wpriv->glink_edge;



	wpriv->glink_state.link_state = GLINK_LINK_STATE_DOWN;

	wpriv->glink_state.handle = glink_register_link_state_cb(&link_info,
@@ -1002,6 +1004,7 @@ static int wdsp_glink_open(struct inode *inode, struct file *file) 
		goto err_wq;

	}



	wpriv->glink_edge = wdev->glink_edge;

	wpriv->glink_state.link_state = GLINK_LINK_STATE_DOWN;

	init_completion(&wpriv->rsp_complete);

	init_waitqueue_head(&wpriv->link_state_wait);
@@ -1117,6 +1120,7 @@ static int wdsp_glink_probe(struct platform_device *pdev) 
{

	int ret;

	struct wdsp_glink_dev *wdev;

	const char *str = NULL;



	wdev = devm_kzalloc(&pdev->dev, sizeof(*wdev), GFP_KERNEL);

	if (!wdev) {
@@ -1156,6 +1160,20 @@ static int wdsp_glink_probe(struct platform_device *pdev) 
			__func__, ret);

		goto err_cdev_add;

	}

	ret = of_property_read_string(pdev->dev.of_node,

			"qcom,msm-codec-glink-edge", &str);

	if (ret < 0) {

		strlcpy(wdev->glink_edge, WDSP_EDGE, GLINK_EDGE_MAX);

		dev_info(&pdev->dev,

			"%s: qcom,msm-codec-glink-edge not set use default %s\n",

			__func__, wdev->glink_edge);

		ret = 0;

	} else {

		strlcpy(wdev->glink_edge, str, GLINK_EDGE_MAX);

		dev_info(&pdev->dev, "%s: glink edge is %s\n", __func__,

				wdev->glink_edge);

	}



	platform_set_drvdata(pdev, wdev);

	goto done;