7c25ef2f97
Implemented Glink Slate acknowledgement response for raydium Touch driver. Signed-off-by: Srikanth Katteboina <quic_skattebo@quicinc.com> Change-Id: Ieba8293d678a0422e6f2caf968312d0c9d96b972
75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2021, The Linux Foundation. All rights reserved.
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* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#ifndef GLINKINTERFACE_H
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#define GLINKINTERFACE_H
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#include <linux/delay.h>
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#include <linux/device.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <linux/wait.h>
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#include <linux/rpmsg.h>
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#define TOUCH_GLINK_INTENT_SIZE 0x0c
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#define TOUCH_MSG_SIZE 0x08
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#define TIMEOUT_MS 2000
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struct glink_touch_priv {
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void *handle;
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struct mutex glink_mutex;
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struct mutex touch_state_mutex;
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void *lhndl;
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char rx_buf[TOUCH_GLINK_INTENT_SIZE];
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bool glink_touch_cmplt;
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wait_queue_head_t link_state_wait;
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bool msm_touch_rpmsg;
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};
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static void *glink_touch_drv;
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enum touch_slate_cmds {
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TOUCH_ENTER_PREPARE = 0x1100,
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TOUCH_ENTER,
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TOUCH_EXIT_PREPARE,
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TOUCH_EXIT
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};
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struct glink_touch_dev {
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struct rpmsg_endpoint *channel;
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struct device *dev;
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bool chnl_state;
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void *message;
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size_t message_length;
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};
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struct touch_channel_ops {
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void (*glink_channel_state)(bool state);
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void (*rx_msg)(void *data, int len);
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};
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void glink_touch_channel_init(void (*fn1)(bool), void (*fn2)(void *, int));
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#if IS_ENABLED(CONFIG_MSM_SLATERSB_RPMSG)
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int glink_touch_tx_msg(void *msg, size_t len);
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#else
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static inline int glink_touch_tx_msg(void *msg, size_t len)
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{
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return -EIO;
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}
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#endif
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#endif
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