TCPMv2: DPM sourcing policy - 3.0 A PD sinks

Move the sourcing policy from the charge_manager to the DPM for TCPMv2.
The first step of this policy will be to allocate 3.0 A only if a
peripheral reports requiring more than 1.5 A in their Sink Capabilities
vSafe5V operational current.  For this commit, leave in some
charge_manager APIs for linking which will be re-named or removed later.

BRANCH=None
BUG=b:141690755,b:168862110
TEST=on drawcia verify:
- non-PD sink only offered 1.5 A Rp
- PD sink requiring 1.5 A or less Rp isn't offered 3.0 A
- PD sink requiring 3.0 A is offered a new 3.0 A Source Capability after
sink capability probing.  Port continues to receive 3.0 A over both hard
and soft resets.
- When 2 3.0 A sinks are plugged in, only the first is offered 3.0 A.
After the first is unplugged, the second receives a 3.0 A source
capability message

Signed-off-by: Diana Z <dzigterman@chromium.org>
Change-Id: Iec48312df1125086db2919c1503c7ba31fe12bcc
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2597429
Reviewed-by: Keith Short <keithshort@chromium.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/test/fake_usbc.c b/test/fake_usbc.c
index 3f84f26219..8343b9a944 100644
--- a/test/fake_usbc.c
+++ b/test/fake_usbc.c
@@ -275,6 +275,14 @@ void dpm_run(int port)
 {
 }
 
+void dpm_evaluate_sink_fixed_pdo(int port, uint32_t vsafe5v_pdo)
+{
+}
+
+void dpm_remove_sink(int port)
+{
+}
+
 static enum tcpc_rp_value lcl_rp;
 __overridable void typec_select_src_current_limit_rp(int port,
 						  enum tcpc_rp_value rp)