Cleanup - includes go in include dir

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=none
TEST=if it builds, it works

Change-Id: I2064f3eed4790051312a5a53ef742dcf79c4ee9d

1 files changed, 113 insertions, 0 deletions

diff --git a/include/charge_state.h b/include/charge_state.h
new file mode 100644
index 0000000000..672dab3e8b
--- /dev/null
+++ b/include/charge_state.h
@@ -0,0 +1,113 @@
+/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ */
+
+#include "timer.h"
+
+#ifndef __CROS_EC_CHARGE_STATE_H
+#define __CROS_EC_CHARGE_STATE_H
+
+/* Time constants */
+#define MSEC    (1000ULL)
+#define SECOND  (MSEC * 1000)
+#define MINUTE  (SECOND * 60)
+#define HOUR    (MINUTE * 60)
+
+/* Update period to prevent charger watchdog timeout */
+#define CHARGER_UPDATE_PERIOD (SECOND * 10)
+
+/* Power state task polling period in usec */
+#define POLL_PERIOD_LONG        (MSEC * 500)
+#define POLL_PERIOD_CHARGE      (MSEC * 250)
+#define POLL_PERIOD_SHORT       (MSEC * 100)
+#define MIN_SLEEP_USEC          (MSEC * 50)
+#define MAX_SLEEP_USEC          SECOND
+
+/* Power state error flags */
+#define F_CHARGER_INIT        (1 << 0) /* Charger initialization */
+#define F_CHARGER_VOLTAGE     (1 << 1) /* Charger maximun output voltage */
+#define F_CHARGER_CURRENT     (1 << 2) /* Charger maximum output current */
+#define F_BATTERY_VOLTAGE     (1 << 3) /* Battery voltage */
+#define F_BATTERY_CURRENT     (1 << 4) /* Battery charging current */
+#define F_DESIRED_VOLTAGE     (1 << 5) /* Battery desired voltage */
+#define F_DESIRED_CURRENT     (1 << 6) /* Battery desired current */
+#define F_BATTERY_TEMPERATURE (1 << 7) /* Battery temperature */
+#define F_BATTERY_MODE        (1 << 8) /* Battery mode */
+#define F_BATTERY_CAPACITY    (1 << 9) /* Battery capacity */
+#define F_BATTERY_STATE_OF_CHARGE (1 << 10) /* State of charge, percentage */
+
+#define F_BATTERY_MASK (F_BATTERY_VOLTAGE | F_BATTERY_CURRENT |  \
+			F_DESIRED_VOLTAGE | F_DESIRED_CURRENT |  \
+			F_BATTERY_TEMPERATURE | F_BATTERY_MODE | \
+			F_BATTERY_CAPACITY | F_BATTERY_STATE_OF_CHARGE)
+#define F_CHARGER_MASK (F_CHARGER_VOLTAGE | F_CHARGER_CURRENT | \
+			F_CHARGER_INIT)
+
+/* Power states */
+enum power_state {
+	PWR_STATE_UNCHANGE = 0,
+	PWR_STATE_INIT,
+	PWR_STATE_IDLE,
+	PWR_STATE_DISCHARGE,
+	PWR_STATE_CHARGE,
+	PWR_STATE_ERROR
+};
+
+/* Debugging constants, in the same order as enum power_state. This string
+ * table was moved here to sync with enum above.
+ */
+#define POWER_STATE_NAME_TABLE \
+	{			\
+		"unchange",	\
+		"init",		\
+		"idle",		\
+		"discharge",	\
+		"charge",	\
+		"error"		\
+	}
+	/* End of POWER_STATE_NAME_TABLE macro */
+
+/* Power state data
+ * Status collection of charging state machine.
+ */
+struct power_state_data {
+	int ac;
+	int charging_voltage;
+	int charging_current;
+	struct batt_params batt;
+	enum power_state state;
+	uint32_t error;
+	timestamp_t ts;
+};
+
+/* State context
+ * The shared context for state handler. The context contains current and
+ * previous state.
+ */
+struct power_state_context {
+	struct power_state_data curr;
+	struct power_state_data prev;
+	uint32_t *memmap_batt_volt;
+	/* TODO(rong): check endianness of EC and memmap*/
+	uint32_t *memmap_batt_rate;
+	uint32_t *memmap_batt_cap;
+	uint8_t *memmap_batt_flags;
+	/* Charger and battery pack info */
+	const struct charger_info *charger;
+	const struct battery_info *battery;
+	/* Charger update timestamp */
+	timestamp_t charger_update_time;
+	timestamp_t trickle_charging_time;
+};
+
+/* Trickle charging state handler.
+ * Trickle charging state is sub-state of charging. Normal charging handler
+ * can not set battery input current cap to a very low value. This function
+ * uses charging voltage to control battery input current.
+ */
+enum power_state trickle_charge(struct power_state_context *ctx);
+
+#endif /* __CROS_EC_CHARGE_STATE_H */
+