100 lines
2.7 KiB
C
Executable file
100 lines
2.7 KiB
C
Executable file
/* 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_MBOX_H__
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#define __SSPM_IPI_MBOX_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 <linux/mutex.h>
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#define IPI_MBOX_TOTAL 4
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#define IPI_MBOX0_64D 0
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#define IPI_MBOX1_64D 0
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#define IPI_MBOX2_64D 0
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#define IPI_MBOX3_64D 0
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#define IPI_MBOX4_64D 0
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#define IPI_MBOX_MODE ((IPI_MBOX4_64D<<4)|(IPI_MBOX3_64D<<3)| \
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(IPI_MBOX2_64D<<2)|(IPI_MBOX1_64D<<1)| \
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IPI_MBOX0_64D)
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#define IPI_MBOX0_SLOTS ((IPI_MBOX0_64D+1)*32)
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#define IPI_MBOX1_SLOTS ((IPI_MBOX1_64D+1)*32)
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#define IPI_MBOX2_SLOTS ((IPI_MBOX2_64D+1)*32)
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#define IPI_MBOX3_SLOTS ((IPI_MBOX3_64D+1)*32)
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#define IPI_MBOX4_SLOTS ((IPI_MBOX4_64D+1)*32)
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#define TOTAL_SEND_PIN 12
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#define TOTAL_RECV_PIN 4
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extern struct _mbox_info *mbox_table;
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extern struct _pin_send *send_pintable;
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extern struct _pin_recv *recv_pintable;
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extern char *(*pin_name);
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extern struct completion sema_ipi_task[];
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/* pre-define slot and size here */
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/* the array index is mapped to bit position of INT_IRQ or OUT_IRQ */
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/* the slot is where the data begin */
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/* the size is how many registers are needed */
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struct _pin_send {
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struct mutex mutex_send;
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struct completion comp_ack;
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unsigned int mbox:3, /* mailbox number used by the pin */
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slot:6, /* bit position of INT_IRQ or OUT_IRQ */
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size:6, /* register number used to pass argument */
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async:1, /* pin can use async functions */
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retdata:1, /* return data or not */
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lock:3, /* Linux lock method: 0: mutex; 1: busy wait */
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polling:1, /* Linux ack polling method */
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unused:11;
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uint32_t *prdata;
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};
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struct _pin_recv {
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struct ipi_action *act;
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unsigned int mbox:3, /* mailbox number used by the pin */
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slot:6, /* slot offset of the pin */
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size:6, /* register number used to pass argument */
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shared:2, /* shared slot */
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retdata:2, /* return data or not */
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lock:2, /* Linux lock method: 0: mutex; 1: busy wait */
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share_grp:5, /* shared group */
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unused:6;
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};
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struct _mbox_info {
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unsigned int start:8, /* start index of pin table */
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end:8, /* end index of pin table */
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used_slot:8, /* used slots in the mailbox */
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mode:2, /* 0:disable, 1:for received, 2: for send */
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unused:6;
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};
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#define IPI_SLOT_SHARED 1
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#define IPI_SLOT_NONE 0
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#define IPI_DATA_RETURN 1
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#define IPI_DATA_NONE 0
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#define IPI_LOCK_ORIGINAL 0x1
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#define IPI_LOCK_NEW 0x2
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#define IPI_LOCK_CHANGE 0x4
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__weak void sspm_ipi_timeout_cb(int ipi_id) {}
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extern struct _mbox_info *mbox_table;
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extern struct _pin_send *send_pintable;
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extern struct _pin_recv *recv_pintable;
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extern char *(*pin_name);
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#endif /* __SSPM_IPI_MBOX_H__ */
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