Init the google-modules/bms codebase
Porting driver/power/supply/google/* from
s-dev-gs-pixel-4.19 branch. The last commit ID is
c030bdb806ef12bfed9d3f33ed0a783cbff269d5
Bug: 160835098
Change-Id: I14a6204dcd9cefa3aecad825e8dfeb8d8c97e61e
Signed-off-by: Ken Tsou <[email protected]>
diff --git a/google_dc_pps.h b/google_dc_pps.h
new file mode 100644
index 0000000..dd8ef45
--- /dev/null
+++ b/google_dc_pps.h
@@ -0,0 +1,131 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2020 Google, LLC
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __GOOGLE_DC_PPS_H_
+#define __GOOGLE_DC_PPS_H_
+
+#include <linux/usb/pd.h>
+#include <linux/pm_wakeup.h>
+#include "logbuffer.h"
+
+#define PD_T_PPS_TIMEOUT 9000 /* Maximum of 10 seconds */
+#define PD_T_PPS_DEADLINE_S 7
+
+#define PPS_KEEP_ALIVE_MAX 3
+#define PPS_ERROR_RETRY_MS 1000
+#define CHG_PPS_VOTER "pps_chg"
+
+enum pd_pps_stage {
+ PPS_NOTSUPP = -1, /* tried and failed */
+ PPS_DISABLED = 0, /* default state, never tried */
+ PPS_NONE, /* try to enable */
+ PPS_AVAILABLE,
+ PPS_ACTIVE,
+};
+
+enum pd_nr_pdo {
+ PDO_FIXED_5V = 1,
+ PDO_FIXED_HIGH_VOLTAGE,
+ PDO_PPS,
+
+ PDO_MAX_SUPP = PDO_PPS,
+ PDO_MAX = PDO_MAX_OBJECTS, /* 7 */
+};
+
+struct pd_pps_data {
+ struct wakeup_source pps_ws;
+ bool stay_awake;
+
+ int nr_src_cap;
+ u32 *src_caps;
+ u32 snk_pdo[PDO_MAX_OBJECTS];
+ unsigned int nr_snk_pdo;
+ u32 default_pps_pdo;
+
+ int pd_online;
+ enum pd_pps_stage stage;
+ unsigned int keep_alive_cnt;
+ time_t last_update;
+
+ /* from TA */
+ int min_uv;
+ int max_uv;
+ int max_ua;
+
+ /* to TA */
+ int out_uv;
+ int op_ua;
+
+ /* logging client */
+ struct logbuffer *log;
+};
+
+/* */
+#define pps_is_disabled(x) (((x) == PPS_NOTSUPP) || ((x) == PPS_DISABLED))
+
+struct dentry;
+int pps_init(struct pd_pps_data *pps_data, struct device *dev);
+int pps_init_fs(struct pd_pps_data *pps_data, struct dentry *de);
+/* reset state and leave in DISABLED */
+void pps_init_state(struct pd_pps_data *pps_data);
+
+/* Run the PPS state machine */
+int pps_work(struct pd_pps_data *pps, struct power_supply *tcpm_psy);
+
+/* rougly equivalent */
+int pps_ping(struct pd_pps_data *pps, struct power_supply *tcpm_psy);
+int pps_keep_alive(struct pd_pps_data *pps, struct power_supply *tcpm_psy);
+
+/* update the PPS adapter */
+int pps_update_adapter(struct pd_pps_data *pps_data,
+ int pending_uv, int pending_ua,
+ struct power_supply *tcpm_psy);
+int pps_check_adapter(struct pd_pps_data *pps,
+ int pending_uv, int pending_ua,
+ struct power_supply *tcpm_psy);
+
+/* */
+int pps_prog_offline(struct pd_pps_data *pps, struct power_supply *tcpm_psy);
+
+void pps_adjust_volt(struct pd_pps_data *pps, int mod);
+
+int pps_switch_profile(struct pd_pps_data *pps, struct power_supply *tcpm_psy,
+ bool more_pwr);
+
+int pps_get_apdo_max_power(struct pd_pps_data *pps, unsigned int *ta_idx,
+ unsigned int *ta_max_vol, unsigned int *ta_max_cur,
+ unsigned long *ta_max_pwr);
+
+bool pps_prog_check_online(struct pd_pps_data *pps_data,
+ struct power_supply *tcpm_psy);
+
+int pps_get_src_cap(struct pd_pps_data *pps, struct power_supply *tcpm_psy);
+
+void pps_log(struct pd_pps_data *pps, const char *fmt, ...);
+
+/* probe */
+struct power_supply *pps_get_tcpm_psy(struct device_node *node, size_t size);
+
+int pps_request_pdo(struct pd_pps_data *pps_data, unsigned int ta_idx,
+ unsigned int ta_max_vol, unsigned int ta_max_cur,
+ struct power_supply *tcpm_psy);
+
+
+
+/* might just need to be in google_charger */
+int chg_update_capability(struct power_supply *tcpm_psy, unsigned int nr_pdo,
+ u32 pps_cap);
+
+#endif /* __GOOGLE_DC_PPS_H_ */
\ No newline at end of file
