100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (c) 2019 MediaTek Inc.
|
|
*/
|
|
|
|
#ifndef __SSPM_IPI_MBOX_H__
|
|
#define __SSPM_IPI_MBOX_H__
|
|
|
|
#include <linux/ioport.h>
|
|
#include <linux/io.h>
|
|
#include <linux/semaphore.h>
|
|
#include <linux/completion.h>
|
|
#include <linux/mutex.h>
|
|
|
|
#define IPI_MBOX_TOTAL 4
|
|
|
|
#define IPI_MBOX0_64D 0
|
|
#define IPI_MBOX1_64D 0
|
|
#define IPI_MBOX2_64D 0
|
|
#define IPI_MBOX3_64D 0
|
|
#define IPI_MBOX4_64D 0
|
|
#define IPI_MBOX_MODE ((IPI_MBOX4_64D<<4)|(IPI_MBOX3_64D<<3)| \
|
|
(IPI_MBOX2_64D<<2)|(IPI_MBOX1_64D<<1)| \
|
|
IPI_MBOX0_64D)
|
|
|
|
#define IPI_MBOX0_SLOTS ((IPI_MBOX0_64D+1)*32)
|
|
#define IPI_MBOX1_SLOTS ((IPI_MBOX1_64D+1)*32)
|
|
#define IPI_MBOX2_SLOTS ((IPI_MBOX2_64D+1)*32)
|
|
#define IPI_MBOX3_SLOTS ((IPI_MBOX3_64D+1)*32)
|
|
#define IPI_MBOX4_SLOTS ((IPI_MBOX4_64D+1)*32)
|
|
|
|
#define TOTAL_SEND_PIN 12
|
|
#define TOTAL_RECV_PIN 4
|
|
|
|
extern struct _mbox_info *mbox_table;
|
|
extern struct _pin_send *send_pintable;
|
|
extern struct _pin_recv *recv_pintable;
|
|
extern char *(*pin_name);
|
|
|
|
extern struct completion sema_ipi_task[];
|
|
|
|
/* pre-define slot and size here */
|
|
/* the array index is mapped to bit position of INT_IRQ or OUT_IRQ */
|
|
/* the slot is where the data begin */
|
|
/* the size is how many registers are needed */
|
|
struct _pin_send {
|
|
|
|
struct mutex mutex_send;
|
|
struct completion comp_ack;
|
|
|
|
unsigned int mbox:3, /* mailbox number used by the pin */
|
|
slot:6, /* bit position of INT_IRQ or OUT_IRQ */
|
|
size:6, /* register number used to pass argument */
|
|
async:1, /* pin can use async functions */
|
|
retdata:1, /* return data or not */
|
|
lock:3, /* Linux lock method: 0: mutex; 1: busy wait */
|
|
polling:1, /* Linux ack polling method */
|
|
unused:11;
|
|
uint32_t *prdata;
|
|
};
|
|
|
|
struct _pin_recv {
|
|
struct ipi_action *act;
|
|
unsigned int mbox:3, /* mailbox number used by the pin */
|
|
slot:6, /* slot offset of the pin */
|
|
size:6, /* register number used to pass argument */
|
|
shared:2, /* shared slot */
|
|
retdata:2, /* return data or not */
|
|
lock:2, /* Linux lock method: 0: mutex; 1: busy wait */
|
|
share_grp:5, /* shared group */
|
|
unused:6;
|
|
};
|
|
|
|
struct _mbox_info {
|
|
unsigned int start:8, /* start index of pin table */
|
|
end:8, /* end index of pin table */
|
|
used_slot:8, /* used slots in the mailbox */
|
|
mode:2, /* 0:disable, 1:for received, 2: for send */
|
|
unused:6;
|
|
};
|
|
|
|
#define IPI_SLOT_SHARED 1
|
|
#define IPI_SLOT_NONE 0
|
|
|
|
#define IPI_DATA_RETURN 1
|
|
#define IPI_DATA_NONE 0
|
|
|
|
#define IPI_LOCK_ORIGINAL 0x1
|
|
#define IPI_LOCK_NEW 0x2
|
|
#define IPI_LOCK_CHANGE 0x4
|
|
|
|
__weak void sspm_ipi_timeout_cb(int ipi_id) {}
|
|
|
|
extern struct _mbox_info *mbox_table;
|
|
extern struct _pin_send *send_pintable;
|
|
extern struct _pin_recv *recv_pintable;
|
|
extern char *(*pin_name);
|
|
|
|
#endif /* __SSPM_IPI_MBOX_H__ */
|