summaryrefslogtreecommitdiff
path: root/board/chell/battery.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/chell/battery.c')
-rw-r--r--board/chell/battery.c81
1 files changed, 81 insertions, 0 deletions
diff --git a/board/chell/battery.c b/board/chell/battery.c
new file mode 100644
index 0000000000..1e5c59a978
--- /dev/null
+++ b/board/chell/battery.c
@@ -0,0 +1,81 @@
+/* Copyright 2015 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.
+ *
+ * Battery pack vendor provided charging profile
+ */
+
+#include "battery.h"
+#include "battery_smart.h"
+#include "charge_state.h"
+#include "console.h"
+#include "ec_commands.h"
+#include "util.h"
+
+/* Shutdown mode parameter to write to manufacturer access register */
+#define SB_SHUTDOWN_DATA 0x0010
+
+/* Battery info for proto */
+static const struct battery_info info = {
+ .voltage_max = 13050, /* mV */
+ .voltage_normal = 11400,
+ .voltage_min = 9000,
+ .precharge_current = 392, /* mA */
+ .start_charging_min_c = 0,
+ .start_charging_max_c = 60,
+ .charging_min_c = 0,
+ .charging_max_c = 60,
+ .discharging_min_c = 0,
+ .discharging_max_c = 60,
+};
+
+const struct battery_info *battery_get_info(void)
+{
+ return &info;
+}
+
+int board_cut_off_battery(void)
+{
+ int rv;
+
+ /* Ship mode command must be sent twice to take effect */
+ rv = sb_write(SB_MANUFACTURER_ACCESS, SB_SHUTDOWN_DATA);
+ if (rv != EC_SUCCESS)
+ return EC_RES_ERROR;
+
+ rv = sb_write(SB_MANUFACTURER_ACCESS, SB_SHUTDOWN_DATA);
+ return rv ? EC_RES_ERROR : EC_RES_SUCCESS;
+}
+
+int charger_profile_override(struct charge_state_data *curr)
+{
+ const struct battery_info *batt_info;
+ /* battery temp in 0.1 deg C */
+ int bat_temp_c = curr->batt.temperature - 2731;
+
+ batt_info = battery_get_info();
+ /* Don't charge if outside of allowable temperature range */
+ if (bat_temp_c >= batt_info->charging_max_c * 10 ||
+ bat_temp_c < batt_info->charging_min_c * 10) {
+ curr->requested_current = 0;
+ curr->requested_voltage = 0;
+ curr->batt.flags &= ~BATT_FLAG_WANT_CHARGE;
+ curr->state = ST_IDLE;
+ }
+ return 0;
+}
+
+/* Customs options controllable by host command. */
+#define PARAM_FASTCHARGE (CS_PARAM_CUSTOM_PROFILE_MIN + 0)
+
+enum ec_status charger_profile_override_get_param(uint32_t param,
+ uint32_t *value)
+{
+ return EC_RES_INVALID_PARAM;
+}
+
+enum ec_status charger_profile_override_set_param(uint32_t param,
+ uint32_t value)
+{
+ return EC_RES_INVALID_PARAM;
+}