81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
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/* drivers/soc/qcom/smp2p_private_api.h
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*
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* Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _ARCH_ARM_MACH_MSM_SMP2P_PRIVATE_API_H_
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#define _ARCH_ARM_MACH_MSM_SMP2P_PRIVATE_API_H_
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#include <linux/notifier.h>
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struct msm_smp2p_out;
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/* Maximum size of the entry name and trailing null. */
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#define SMP2P_MAX_ENTRY_NAME 16
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/* Bits per entry */
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#define SMP2P_BITS_PER_ENTRY 32
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/* Processor ID's */
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enum {
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SMP2P_APPS_PROC = 0,
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SMP2P_MODEM_PROC = 1,
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SMP2P_AUDIO_PROC = 2,
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SMP2P_SENSOR_PROC = 3,
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SMP2P_WIRELESS_PROC = 4,
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SMP2P_RESERVED_PROC_2 = 5,
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SMP2P_POWER_PROC = 6,
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SMP2P_TZ_PROC = 7,
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/* add new processors here */
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SMP2P_REMOTE_MOCK_PROC = 15,
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SMP2P_NUM_PROCS,
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};
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/**
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* Notification events that are passed to notifier for incoming and outgoing
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* entries.
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*
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* If the @metadata argument in the notifier is non-null, then it will
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* point to the associated struct smux_meta_* structure.
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*/
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enum msm_smp2p_events {
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SMP2P_OPEN, /* data is NULL */
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SMP2P_ENTRY_UPDATE, /* data => struct msm_smp2p_update_notif */
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};
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/**
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* Passed in response to a SMP2P_ENTRY_UPDATE event.
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*
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* @prev_value: previous value of entry
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* @current_value: latest value of entry
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*/
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struct msm_smp2p_update_notif {
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uint32_t previous_value;
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uint32_t current_value;
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};
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int msm_smp2p_out_open(int remote_pid, const char *entry,
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struct notifier_block *open_notifier,
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struct msm_smp2p_out **handle);
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int msm_smp2p_out_close(struct msm_smp2p_out **handle);
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int msm_smp2p_out_read(struct msm_smp2p_out *handle, uint32_t *data);
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int msm_smp2p_out_write(struct msm_smp2p_out *handle, uint32_t data);
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int msm_smp2p_out_modify(struct msm_smp2p_out *handle, uint32_t set_mask,
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uint32_t clear_mask, bool send_irq);
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int msm_smp2p_in_read(int remote_pid, const char *entry, uint32_t *data);
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int msm_smp2p_in_register(int remote_pid, const char *entry,
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struct notifier_block *in_notifier);
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int msm_smp2p_in_unregister(int remote_pid, const char *entry,
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struct notifier_block *in_notifier);
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#endif /* _ARCH_ARM_MACH_MSM_SMP2P_PRIVATE_API_H_ */
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