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/* drivers/soc/qcom/smp2p_private_api.h
*
* Copyright (c) 2013-2016, 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 _ARCH_ARM_MACH_MSM_SMP2P_PRIVATE_API_H_
#define _ARCH_ARM_MACH_MSM_SMP2P_PRIVATE_API_H_
#include <linux/notifier.h>
struct msm_smp2p_out;
/* Maximum size of the entry name and trailing null. */
#define SMP2P_MAX_ENTRY_NAME 16
/* Bits per entry */
#define SMP2P_BITS_PER_ENTRY 32
/* Processor ID's */
enum {
SMP2P_APPS_PROC = 0,
SMP2P_MODEM_PROC = 1,
SMP2P_AUDIO_PROC = 2,
SMP2P_SENSOR_PROC = 3,
SMP2P_WIRELESS_PROC = 4,
SMP2P_CDSP_PROC = 5,
SMP2P_POWER_PROC = 6,
SMP2P_TZ_PROC = 7,
/* add new processors here */
SMP2P_REMOTE_MOCK_PROC = 15,
SMP2P_NUM_PROCS,
};
/**
* Notification events that are passed to notifier for incoming and outgoing
* entries.
*
* If the @metadata argument in the notifier is non-null, then it will
* point to the associated struct smux_meta_* structure.
*/
enum msm_smp2p_events {
SMP2P_OPEN, /* data is NULL */
SMP2P_ENTRY_UPDATE, /* data => struct msm_smp2p_update_notif */
};
/**
* Passed in response to a SMP2P_ENTRY_UPDATE event.
*
* @prev_value: previous value of entry
* @current_value: latest value of entry
*/
struct msm_smp2p_update_notif {
uint32_t previous_value;
uint32_t current_value;
};
int msm_smp2p_out_open(int remote_pid, const char *entry,
struct notifier_block *open_notifier,
struct msm_smp2p_out **handle);
int msm_smp2p_out_close(struct msm_smp2p_out **handle);
int msm_smp2p_out_read(struct msm_smp2p_out *handle, uint32_t *data);
int msm_smp2p_out_write(struct msm_smp2p_out *handle, uint32_t data);
int msm_smp2p_out_modify(struct msm_smp2p_out *handle, uint32_t set_mask,
uint32_t clear_mask, bool send_irq);
int msm_smp2p_in_read(int remote_pid, const char *entry, uint32_t *data);
int msm_smp2p_in_register(int remote_pid, const char *entry,
struct notifier_block *in_notifier);
int msm_smp2p_in_unregister(int remote_pid, const char *entry,
struct notifier_block *in_notifier);
#endif /* _ARCH_ARM_MACH_MSM_SMP2P_PRIVATE_API_H_ */
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