hooks: add hook for battery state of charge change

Add hook for battery state of charge change. Hook will be used
to cleanup the samus charging workarounds to follow.

BUG=none
BRANCH=samus
TEST=make -j buildall

Change-Id: I99cbb8264783802139cac689804b056623063695
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/245252
Reviewed-by: Shawn N <shawnn@chromium.org>

8 files changed, 27 insertions, 0 deletions

diff --git a/common/charge_state_v2.c b/common/charge_state_v2.c
index 5e3df653c6..2487f05fe5 100644
--- a/common/charge_state_v2.c
+++ b/common/charge_state_v2.c
@@ -773,6 +773,7 @@ wait_for_it:
 		    (is_full != prev_full)) {
 			show_charging_progress();
 			prev_charge = curr.batt.state_of_charge;
+			hook_notify(HOOK_BATTERY_SOC_CHANGE);
 #ifdef HAS_TASK_PDCMD
 			host_command_pd_send_status();
 #endif
diff --git a/common/hooks.c b/common/hooks.c
index f95d531947..c07a3d1d1c 100644
--- a/common/hooks.c
+++ b/common/hooks.c
@@ -45,6 +45,7 @@ static const struct hook_ptrs hook_list[] = {
 	{__hooks_lid_change, __hooks_lid_change_end},
 	{__hooks_pwrbtn_change, __hooks_pwrbtn_change_end},
 	{__hooks_charge_state_change, __hooks_charge_state_change_end},
+	{__hooks_battery_soc_change, __hooks_battery_soc_change_end},
 	{__hooks_tick, __hooks_tick_end},
 	{__hooks_second, __hooks_second_end},
 };
diff --git a/core/cortex-m/ec.lds.S b/core/cortex-m/ec.lds.S
index b5818560b9..915a8224f6 100644
--- a/core/cortex-m/ec.lds.S
+++ b/core/cortex-m/ec.lds.S
@@ -135,6 +135,10 @@ SECTIONS
         KEEP(*(.rodata.HOOK_CHARGE_STATE_CHANGE))
         __hooks_charge_state_change_end = .;
 
+        __hooks_battery_soc_change = .;
+        KEEP(*(.rodata.HOOK_BATTERY_SOC_CHANGE))
+        __hooks_battery_soc_change_end = .;
+
         __hooks_tick = .;
         KEEP(*(.rodata.HOOK_TICK))
         __hooks_tick_end = .;
diff --git a/core/cortex-m0/ec.lds.S b/core/cortex-m0/ec.lds.S
index c3ba800b0e..facbee1742 100644
--- a/core/cortex-m0/ec.lds.S
+++ b/core/cortex-m0/ec.lds.S
@@ -123,6 +123,10 @@ SECTIONS
         KEEP(*(.rodata.HOOK_CHARGE_STATE_CHANGE))
         __hooks_charge_state_change_end = .;
 
+        __hooks_battery_soc_change = .;
+        KEEP(*(.rodata.HOOK_BATTERY_SOC_CHANGE))
+        __hooks_battery_soc_change_end = .;
+
         __hooks_tick = .;
         KEEP(*(.rodata.HOOK_TICK))
         __hooks_tick_end = .;
diff --git a/core/host/host_exe.lds b/core/host/host_exe.lds
index 48f2c6bc19..e61b2d1c48 100644
--- a/core/host/host_exe.lds
+++ b/core/host/host_exe.lds
@@ -72,6 +72,10 @@ SECTIONS {
     *(.rodata.HOOK_CHARGE_STATE_CHANGE)
     __hooks_charge_state_change_end = .;
 
+    __hooks_battery_soc_change = .;
+    *(.rodata.HOOK_BATTERY_SOC_CHANGE)
+    __hooks_battery_soc_change_end = .;
+
     __hooks_tick = .;
     *(.rodata.HOOK_TICK)
     __hooks_tick_end = .;
diff --git a/core/nds32/ec.lds.S b/core/nds32/ec.lds.S
index f66412cd6d..8a8927f11a 100644
--- a/core/nds32/ec.lds.S
+++ b/core/nds32/ec.lds.S
@@ -113,6 +113,10 @@ SECTIONS
         KEEP(*(.rodata.HOOK_CHARGE_STATE_CHANGE))
         __hooks_charge_state_change_end = .;
 
+        __hooks_battery_soc_change = .;
+        KEEP(*(.rodata.HOOK_BATTERY_SOC_CHANGE))
+        __hooks_battery_soc_change_end = .;
+
         __hooks_tick = .;
         KEEP(*(.rodata.HOOK_TICK))
         __hooks_tick_end = .;
diff --git a/include/hooks.h b/include/hooks.h
index a4a518354a..15ab778c5b 100644
--- a/include/hooks.h
+++ b/include/hooks.h
@@ -139,6 +139,13 @@ enum hook_type {
 	HOOK_CHARGE_STATE_CHANGE,
 
 	/*
+	 * Battery state of charge changed
+	 *
+	 * Hook routines are called from the charger task.
+	 */
+	HOOK_BATTERY_SOC_CHANGE,
+
+	/*
 	 * Periodic tick, every HOOK_TICK_INTERVAL.
 	 *
 	 * Hook routines will be called from the TICK task.
diff --git a/include/link_defs.h b/include/link_defs.h
index 67ae9779d2..cfb7f0ced2 100644
--- a/include/link_defs.h
+++ b/include/link_defs.h
@@ -46,6 +46,8 @@ extern const struct hook_data __hooks_pwrbtn_change[];
 extern const struct hook_data __hooks_pwrbtn_change_end[];
 extern const struct hook_data __hooks_charge_state_change[];
 extern const struct hook_data __hooks_charge_state_change_end[];
+extern const struct hook_data __hooks_battery_soc_change[];
+extern const struct hook_data __hooks_battery_soc_change_end[];
 extern const struct hook_data __hooks_tick[];
 extern const struct hook_data __hooks_tick_end[];
 extern const struct hook_data __hooks_second[];