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pd: Set pd mux to USB 3.0 (superspeed) initially.

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BRANCH=manual
BUG=chrome-os-partner:28585
TEST=manual,

Plug USB 3.0 capable device in both ports and both polarites on samus
and see device enumerate as superspeed.  For example,
  usb 2-3: new SuperSpeed USB device number 6 using xhci_hcd

In order you must first connected device (hoho) prior to configuring
mux via 'ectool --dev=1 --interface=lpc usbpd <port> dp'

Change-Id: Ia6b8a714ce9ae1539769399e51ff245d00202171
Signed-off-by: Todd Broch <tbroch@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/214579
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Todd Broch
2014-08-27 16:15:31 -07:00
committed by chrome-internal-fetch
parent 7bea5174a1
commit 2f4de76850
1 changed files with 11 additions and 0 deletions
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11
common/usb_pd_protocol.c
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@@ -253,6 +253,12 @@ static inline void set_state(int port, enum pd_states next_state)
set_state_timeout(port, 0, 0);
pd[port].task_state = next_state;
#ifdef CONFIG_USBC_SS_MUX
if (next_state == PD_STATE_SRC_DISCONNECTED)
board_set_usb_mux(port, TYPEC_MUX_NONE,
pd[port].polarity);
#endif
/* Log state transition, except for toggling between sink and source */
if (last_state == next_state)
return;
@@ -1191,6 +1197,11 @@ void pd_task(void)
(cc2_volt < PD_SRC_VNC)) {
pd[port].polarity = !(cc1_volt < PD_SRC_VNC);
pd_select_polarity(port, pd[port].polarity);
/* Set to USB SS initially */
#ifdef CONFIG_USBC_SS_MUX
board_set_usb_mux(port, TYPEC_MUX_USB,
pd[port].polarity);
#endif
/* Enable VBUS */
pd_set_power_supply_ready(port);
set_state(port, PD_STATE_SRC_DISCOVERY);