73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#ifndef __SSPM_IPI_H__
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#define __SSPM_IPI_H__
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#include <linux/ioport.h>
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#include <linux/io.h>
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#include <linux/semaphore.h>
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#include <linux/completion.h>
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#include "sspm_ipi_pin.h"
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struct ipi_action {
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void *data;
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unsigned int id;
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spinlock_t *lock;
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};
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#define IPI_REG_OK 0
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#define IPI_REG_ALREADY -1
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#define IPI_REG_ACTION_ERROR -2
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#define IPI_REG_SEMAPHORE_FAIL -3
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#define IPI_SERVICE_NOT_AVAILABLE -100
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#define IPI_SERVICE_NOT_INITED -101
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/* ipi_send() return code */
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#define IPI_DONE 0
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#define IPI_RETURN 1
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#define IPI_BUSY -1
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#define IPI_TIMEOUT_AVL -2
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#define IPI_TIMEOUT_ACK -3
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#define IPI_MODULE_ID_ERROR -4
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#define IPI_HW_ERROR -5
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#define IPI_NO_MEMORY -6
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#define IPI_USED_IN_WAIT -7
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#define IPI_PIN_MISUES -8
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extern int sspm_ipi_init(void);
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/* definition for opts arguments (new) */
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#define IPI_OPT_WAIT 0
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#define IPI_OPT_POLLING 1
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#define sspm_ipi_send_sync_new sspm_ipi_send_sync
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extern int sspm_ipi_recv_registration(int mid, struct ipi_action *act);
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extern int sspm_ipi_recv_registration_ex(int mid, spinlock_t *lock,
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struct ipi_action *act);
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extern int sspm_ipi_recv_unregistration(int mid);
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extern int sspm_ipi_recv_wait(int mid);
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extern void sspm_ipi_recv_complete(int mid);
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extern int sspm_ipi_send_sync(int mid, int opts, void *buffer, int slot,
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void *retbuf, int retslot);
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extern int sspm_ipi_send_ack(int mid, unsigned int *data);
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extern int sspm_ipi_send_ack_ex(int mid, void *data, int retslot);
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/* old definition (obslete) */
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#define IPI_OPT_DEFAUT 0
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#define IPI_OPT_NOLOCK (IPI_OPT_REDEF_MASK)
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#define IPI_OPT_LOCK_BUSY (IPI_OPT_REDEF_MASK|IPI_OPT_LOCK_MASK)
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#define IPI_OPT_LOCK_POLLING (IPI_OPT_REDEF_MASK|IPI_OPT_LOCK_MASK| \
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IPI_OPT_POLLING_MASK)
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extern int sspm_ipi_is_inited(void);
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extern int sspm_ipi_send_async(int mid, int opts, void *buffer, int slot);
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extern int sspm_ipi_send_async_wait(int mid, int opts, void *retbuf);
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extern int sspm_ipi_send_async_wait_ex(int mid, int opts, void *retbuf,
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int retslot);
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#endif /* __SSPM_IPI_H__ */
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