Merge "msm: mhi: add MHI state machine"

obj-y += mhi.o

obj-y += mhi_ring.o

obj-y += mhi_uci.o

obj-y += mhi_sm.o

/* Copyright (c) 2015, 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

 * only version 2 as published by the Free Software Foundation.

 *

 * 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.

 */

#ifndef MHI_SM_H

#define MHI_SM_H

#include "mhi.h"

#include <linux/slab.h>

#include <linux/msm_ep_pcie.h>

/**

 * enum mhi_dev_event - MHI state change events

 * @MHI_DEV_EVENT_CTRL_TRIG: CTRL register change event.

 *				Not supported,for future use

 * @MHI_DEV_EVENT_M0_STATE: M0 state change event

 * @MHI_DEV_EVENT_M1_STATE: M1 state change event. Not supported, for future use

 * @MHI_DEV_EVENT_M2_STATE: M2 state change event. Not supported, for future use

 * @MHI_DEV_EVENT_M3_STATE: M0 state change event

 * @MHI_DEV_EVENT_HW_ACC_WAKEUP: pendding data on IPA, initiate Host wakeup

 * @MHI_DEV_EVENT_CORE_WAKEUP: MHI core initiate Host wakup

 */

enum mhi_dev_event {

	MHI_DEV_EVENT_CTRL_TRIG,

	MHI_DEV_EVENT_M0_STATE,

	MHI_DEV_EVENT_M1_STATE,

	MHI_DEV_EVENT_M2_STATE,

	MHI_DEV_EVENT_M3_STATE,

	MHI_DEV_EVENT_HW_ACC_WAKEUP,

	MHI_DEV_EVENT_CORE_WAKEUP,

	MHI_DEV_EVENT_MAX

};

int mhi_dev_sm_init(struct mhi_dev *dev);

int mhi_dev_sm_set_ready(void);

int mhi_dev_notify_sm_event(enum mhi_dev_event event);

int mhi_dev_sm_get_mhi_state(enum mhi_dev_state *state);

int mhi_dev_sm_syserr(void);

void mhi_dev_sm_pcie_handler(struct ep_pcie_notify *notify);

#endif /* MHI_SM_H */