threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/*
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* Copyright (C) 2016 MediaTek Inc.
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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 as
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* 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.
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* See http://www.gnu.org/licenses/gpl-2.0.html for more details.
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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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