waterDataStatistics alarmDataOperation.c 朱涛 commit at 2020-09-28

waterDataStatistics/databaseOperation/alarmDataOperation.c

@@ -221,3 +221,190 @@ static unsigned short free_ls, max_ls, ls_supp;
 static bool inited;
 
 /* Private functions */
+
+/**
+ * _fetch_next_ocp_if - return the next OCP interface in a list
+ * @p: ptr to a ptr to the list_head inside the ocp_if to return
+ * @i: pointer to the index of the element pointed to by @p in the list
+ *
+ * Return a pointer to the struct omap_hwmod_ocp_if record
+ * containing the struct list_head pointed to by @p, and increment
+ * @p such that a future call to this routine will return the next
+ * record.
+ */
+static struct omap_hwmod_ocp_if *_fetch_next_ocp_if(struct list_head **p,
+						    int *i)
+{
+	struct omap_hwmod_ocp_if *oi;
+
+	oi = list_entry(*p, struct omap_hwmod_link, node)->ocp_if;
+	*p = (*p)->next;
+
+	*i = *i + 1;
+
+	return oi;
+}
+
+/**
+ * _update_sysc_cache - return the module OCP_SYSCONFIG register, keep copy
+ * @oh: struct omap_hwmod *
+ *
+ * Load the current value of the hwmod OCP_SYSCONFIG register into the
+ * struct omap_hwmod for later use.  Returns -EINVAL if the hwmod has no
+ * OCP_SYSCONFIG register or 0 upon success.
+ */
+static int _update_sysc_cache(struct omap_hwmod *oh)
+{
+	if (!oh->class->sysc) {
+		WARN(1, "omap_hwmod: %s: cannot read OCP_SYSCONFIG: not defined on hwmod's class\n", oh->name);
+		return -EINVAL;
+	}
+
+	/* XXX ensure module interface clock is up */
+
+	oh->_sysc_cache = omap_hwmod_read(oh, oh->class->sysc->sysc_offs);
+
+	if (!(oh->class->sysc->sysc_flags & SYSC_NO_CACHE))
+		oh->_int_flags |= _HWMOD_SYSCONFIG_LOADED;
+
+	return 0;
+}
+
+/**
+ * _write_sysconfig - write a value to the module's OCP_SYSCONFIG register
+ * @v: OCP_SYSCONFIG value to write
+ * @oh: struct omap_hwmod *
+ *
+ * Write @v into the module class' OCP_SYSCONFIG register, if it has
+ * one.  No return value.
+ */
+static void _write_sysconfig(u32 v, struct omap_hwmod *oh)
+{
+	if (!oh->class->sysc) {
+		WARN(1, "omap_hwmod: %s: cannot write OCP_SYSCONFIG: not defined on hwmod's class\n", oh->name);
+		return;
+	}
+
+	/* XXX ensure module interface clock is up */
+
+	/* Module might have lost context, always update cache and register */
+	oh->_sysc_cache = v;
+	omap_hwmod_write(v, oh, oh->class->sysc->sysc_offs);
+}
+
+/**
+ * _set_master_standbymode: set the OCP_SYSCONFIG MIDLEMODE field in @v
+ * @oh: struct omap_hwmod *
+ * @standbymode: MIDLEMODE field bits
+ * @v: pointer to register contents to modify
+ *
+ * Update the master standby mode bits in @v to be @standbymode for
+ * the @oh hwmod.  Does not write to the hardware.  Returns -EINVAL
+ * upon error or 0 upon success.
+ */
+static int _set_master_standbymode(struct omap_hwmod *oh, u8 standbymode,
+				   u32 *v)
+{
+	u32 mstandby_mask;
+	u8 mstandby_shift;
+
+	if (!oh->class->sysc ||
+	    !(oh->class->sysc->sysc_flags & SYSC_HAS_MIDLEMODE))
+		return -EINVAL;
+
+	if (!oh->class->sysc->sysc_fields) {
+		WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name);
+		return -EINVAL;
+	}
+
+	mstandby_shift = oh->class->sysc->sysc_fields->midle_shift;
+	mstandby_mask = (0x3 << mstandby_shift);
+
+	*v &= ~mstandby_mask;
+	*v |= __ffs(standbymode) << mstandby_shift;
+
+	return 0;
+}
+
+/**
+ * _set_slave_idlemode: set the OCP_SYSCONFIG SIDLEMODE field in @v
+ * @oh: struct omap_hwmod *
+ * @idlemode: SIDLEMODE field bits
+ * @v: pointer to register contents to modify
+ *
+ * Update the slave idle mode bits in @v to be @idlemode for the @oh
+ * hwmod.  Does not write to the hardware.  Returns -EINVAL upon error
+ * or 0 upon success.
+ */
+static int _set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode, u32 *v)
+{
+	u32 sidle_mask;
+	u8 sidle_shift;
+
+	if (!oh->class->sysc ||
+	    !(oh->class->sysc->sysc_flags & SYSC_HAS_SIDLEMODE))
+		return -EINVAL;
+
+	if (!oh->class->sysc->sysc_fields) {
+		WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name);
+		return -EINVAL;
+	}
+
+	sidle_shift = oh->class->sysc->sysc_fields->sidle_shift;
+	sidle_mask = (0x3 << sidle_shift);
+
+	*v &= ~sidle_mask;
+	*v |= __ffs(idlemode) << sidle_shift;
+
+	return 0;
+}
+
+/**
+ * _set_clockactivity: set OCP_SYSCONFIG.CLOCKACTIVITY bits in @v
+ * @oh: struct omap_hwmod *
+ * @clockact: CLOCKACTIVITY field bits
+ * @v: pointer to register contents to modify
+ *
+ * Update the clockactivity mode bits in @v to be @clockact for the
+ * @oh hwmod.  Used for additional powersaving on some modules.  Does
+ * not write to the hardware.  Returns -EINVAL upon error or 0 upon
+ * success.
+ */
+static int _set_clockactivity(struct omap_hwmod *oh, u8 clockact, u32 *v)
+{
+	u32 clkact_mask;
+	u8  clkact_shift;
+
+	if (!oh->class->sysc ||
+	    !(oh->class->sysc->sysc_flags & SYSC_HAS_CLOCKACTIVITY))
+		return -EINVAL;
+
+	if (!oh->class->sysc->sysc_fields) {
+		WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name);
+		return -EINVAL;
+	}
+
+	clkact_shift = oh->class->sysc->sysc_fields->clkact_shift;
+	clkact_mask = (0x3 << clkact_shift);
+
+	*v &= ~clkact_mask;
+	*v |= clockact << clkact_shift;
+
+	return 0;
+}
+
+/**
+ * _set_softreset: set OCP_SYSCONFIG.CLOCKACTIVITY bits in @v
+ * @oh: struct omap_hwmod *
+ * @v: pointer to register contents to modify
+ *
+ * Set the SOFTRESET bit in @v for hwmod @oh.  Returns -EINVAL upon
+ * error or 0 upon success.
+ */
+static int _set_softreset(struct omap_hwmod *oh, u32 *v)
+{
+	u32 softrst_mask;
+
+	if (!oh->class->sysc ||
+	    !(oh->class->sysc->sysc_flags & SYSC_HAS_SOFTRESET))
+		return -EINVAL;