函数
static int	PowerLockWrite (struct ProcFile pf, const char buf, size_t count, loff_t *ppos)

static int	PowerLockRead (struct SeqBuf m, void v)
	读取电源锁信息更多...

static int	PowerUnlockWrite (struct ProcFile pf, const char buf, size_t count, loff_t *ppos)

static int	PowerModeWrite (struct ProcFile pf, const char buf, size_t count, loff_t *ppos)

static int	PowerModeRead (struct SeqBuf m, void v)

static int	PowerCountRead (struct SeqBuf m, void v)

static int	PowerCountWrite (struct ProcFile pf, const char buf, size_t count, loff_t *ppos)

void	ProcPmInit (void)

变量
static const struct ProcFileOperations	PowerLock
	proc 拿电源锁操作更多...

static const struct ProcFileOperations	PowerUnlock

static const struct ProcFileOperations	PowerMode

static const struct ProcFileOperations	PowerCount

函数说明

◆ PowerCountRead()

static int PowerCountRead	(	struct SeqBuf *	m,
		void *	v
	)

static

在文件 power_proc.c 第 115 行定义.

{
    (void)v;
    UINT32 count = LOS_PmReadLock();
 
    LosBufPrintf(m, "%u\n", count);
    return 0;
}

函数调用图:

◆ PowerCountWrite()

static int PowerCountWrite	(	struct ProcFile *	pf,
		const char *	buf,
		size_t	count,
		loff_t *	ppos
	)

static

在文件 power_proc.c 第 124 行定义.

{
    (void)pf;
    (void)count;
    (void)ppos;
 
    int weakCount;
 
    if (buf == NULL) {
        return 0;
    }
 
    weakCount = atoi(buf);
    return -LOS_PmSuspend(weakCount);
}

函数调用图:

◆ PowerLockRead()

static int PowerLockRead	(	struct SeqBuf *	m,
		void *	v
	)

static

读取电源锁信息

在文件 power_proc.c 第 48 行定义.

{
    (void)v;
 
    LOS_PmLockInfoShow(m);
    return 0;
}

函数调用图:

◆ PowerLockWrite()

static int PowerLockWrite	(	struct ProcFile *	pf,
		const char *	buf,
		size_t	count,
		loff_t *	ppos
	)

static

在文件 power_proc.c 第 40 行定义.

{
    (void)pf;
    (void)count;
    (void)ppos;
    return -LOS_PmLockRequest(buf);
}

函数调用图:

◆ PowerModeRead()

static int PowerModeRead	(	struct SeqBuf *	m,
		void *	v
	)

static

在文件 power_proc.c 第 102 行定义.

{
    (void)v;
 
    LosBufPrintf(m, "normal light deep shutdown\n");
    return 0;
}

函数调用图:

◆ PowerModeWrite()

static int PowerModeWrite	(	struct ProcFile *	pf,
		const char *	buf,
		size_t	count,
		loff_t *	ppos
	)

static

在文件 power_proc.c 第 74 行定义.

{
    (void)pf;
    (void)count;
    (void)ppos;
 
    LOS_SysSleepEnum mode;
 
    if (buf == NULL) {
        return 0;
    }
 
    if (strcmp(buf, "normal") == 0) {
        mode = LOS_SYS_NORMAL_SLEEP;
    } else if (strcmp(buf, "light") == 0) {
        mode = LOS_SYS_LIGHT_SLEEP;
    } else if (strcmp(buf, "deep") == 0) {
        mode = LOS_SYS_DEEP_SLEEP;
    } else if (strcmp(buf, "shutdown") == 0) {
        mode = LOS_SYS_SHUTDOWN;
    } else {
        PRINT_ERR("Unsupported hibernation mode: %s\n", buf);
        return -EINVAL;
    }
 
    return -LOS_PmModeSet(mode);
}

函数调用图:

◆ PowerUnlockWrite()

static int PowerUnlockWrite	(	struct ProcFile *	pf,
		const char *	buf,
		size_t	count,
		loff_t *	ppos
	)

static

在文件 power_proc.c 第 61 行定义.

{
    (void)pf;
    (void)count;
    (void)ppos;
    return -LOS_PmLockRelease(buf);
}

函数调用图:

◆ ProcPmInit()

void ProcPmInit ( void )

在文件 power_proc.c 第 148 行定义.

{
    struct ProcDirEntry *power = CreateProcEntry("power", S_IFDIR | S_IRWXU | S_IRWXG | S_IROTH, NULL);
    if (power == NULL) {//创建 文件夹 /proc/power
        PRINT_ERR("create /proc/power error!\n");
        return;
    }
    power->uid = OS_POWER_PRIVILEGE;
    power->gid = OS_POWER_PRIVILEGE;
 
    struct ProcDirEntry *mode = CreateProcEntry("power/power_mode", POWER_FILE_MODE, NULL);
    if (mode == NULL) {//创建 文件夹 /proc/power/power_mode
        PRINT_ERR("create /proc/power/power_mode error!\n");
        goto FREE_POWER;
    }
    mode->procFileOps = &PowerMode;
    mode->uid = OS_POWER_PRIVILEGE;
    mode->gid = OS_POWER_PRIVILEGE;
 
    struct ProcDirEntry *lock = CreateProcEntry("power/power_lock", POWER_FILE_MODE, NULL);
    if (lock == NULL) {//创建 文件夹 /proc/power/power_lock
        PRINT_ERR("create /proc/power/power_lock error!\n");
        goto FREE_MODE;
    }
    lock->procFileOps = &PowerLock;
    lock->uid = OS_POWER_PRIVILEGE;
    lock->gid = OS_POWER_PRIVILEGE;
 
    struct ProcDirEntry *unlock = CreateProcEntry("power/power_unlock", POWER_FILE_MODE, NULL);
    if (unlock == NULL) {//创建 文件夹 /proc/power/power_unlock
        PRINT_ERR("create /proc/power/power_unlock error!\n");
        goto FREE_LOCK;
    }
    unlock->procFileOps = &PowerUnlock;
    unlock->uid = OS_POWER_PRIVILEGE;
    unlock->gid = OS_POWER_PRIVILEGE;
 
    struct ProcDirEntry *count = CreateProcEntry("power/power_count", S_IRUSR | S_IRGRP | S_IROTH, NULL);
    if (count == NULL) {//创建 文件夹 /proc/power/power_count
        PRINT_ERR("create /proc/power/power_count error!\n");
        goto FREE_UNLOCK;
    }
    count->procFileOps = &PowerCount;
    count->uid = OS_POWER_PRIVILEGE;
    count->gid = OS_POWER_PRIVILEGE;
 
    return;
 
FREE_UNLOCK:
    ProcFreeEntry(unlock);
FREE_LOCK:
    ProcFreeEntry(lock);
FREE_MODE:
    ProcFreeEntry(mode);
FREE_POWER:
    ProcFreeEntry(power);
    return;
}

函数调用图:

这是这个函数的调用关系图:

变量说明

◆ PowerCount

const struct ProcFileOperations PowerCount

static

初始值:

= {
    .write      = PowerCountWrite,
    .read       = PowerCountRead,
}

在文件 power_proc.c 第 140 行定义.

◆ PowerLock

const struct ProcFileOperations PowerLock

static

初始值:

= {
    .write      = PowerLockWrite,
    .read       = PowerLockRead,
}

proc 拿电源锁操作

在文件 power_proc.c 第 56 行定义.

◆ PowerMode

const struct ProcFileOperations PowerMode

static

初始值:

= {
    .write      = PowerModeWrite,
    .read       = PowerModeRead,
}

在文件 power_proc.c 第 110 行定义.

◆ PowerUnlock

const struct ProcFileOperations PowerUnlock

static

初始值:

= {
    .write      = PowerUnlockWrite,
    .read       = PowerLockRead,
}

在文件 power_proc.c 第 69 行定义.