diff options
| author | Anton Tikhomirov <av.tikhomirov@samsung.com> | 2013-10-03 12:42:04 +0900 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2013-10-04 09:44:49 -0500 |
| commit | ec04996a080d825f8acdf0f8fbb2f3ebd5963cf3 (patch) | |
| tree | dcd9889f256659ce68434ca764beb657c04687a1 /drivers/usb/phy/phy-fsm-usb.c | |
| parent | 68041785d0c69884c4adb3bcab48f92ac3e75629 (diff) | |
usb: phy: Add and use missed OTG FSM inputs/outputs
Several input/output variables missed in current FSM implementation.
This patch adds and makes use of them as specified in OTG and EH
supplement to USB2.0.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/phy/phy-fsm-usb.c')
| -rw-r--r-- | drivers/usb/phy/phy-fsm-usb.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c index d5c6db00453..329c2d2f859 100644 --- a/drivers/usb/phy/phy-fsm-usb.c +++ b/drivers/usb/phy/phy-fsm-usb.c @@ -71,8 +71,11 @@ void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state) case OTG_STATE_B_IDLE: otg_del_timer(fsm, B_SE0_SRP); fsm->b_se0_srp = 0; + fsm->adp_sns = 0; + fsm->adp_prb = 0; break; case OTG_STATE_B_SRP_INIT: + fsm->data_pulse = 0; fsm->b_srp_done = 0; break; case OTG_STATE_B_PERIPHERAL: @@ -84,6 +87,7 @@ void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state) case OTG_STATE_B_HOST: break; case OTG_STATE_A_IDLE: + fsm->adp_prb = 0; break; case OTG_STATE_A_WAIT_VRISE: otg_del_timer(fsm, A_WAIT_VRISE); @@ -131,6 +135,11 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) otg_chrg_vbus(fsm, 0); otg_loc_conn(fsm, 0); otg_loc_sof(fsm, 0); + /* + * Driver is responsible for starting ADP probing + * if ADP sensing times out. + */ + otg_start_adp_sns(fsm); otg_set_protocol(fsm, PROTO_UNDEF); otg_add_timer(fsm, B_SE0_SRP); break; @@ -167,6 +176,7 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) otg_chrg_vbus(fsm, 0); otg_loc_conn(fsm, 0); otg_loc_sof(fsm, 0); + otg_start_adp_prb(fsm); otg_set_protocol(fsm, PROTO_HOST); break; case OTG_STATE_A_WAIT_VRISE: @@ -256,7 +266,8 @@ int otg_statemachine(struct otg_fsm *fsm) otg_set_state(fsm, OTG_STATE_A_IDLE); else if (fsm->b_sess_vld && fsm->otg->gadget) otg_set_state(fsm, OTG_STATE_B_PERIPHERAL); - else if (fsm->b_bus_req && fsm->b_ssend_srp && fsm->b_se0_srp) + else if ((fsm->b_bus_req || fsm->adp_change || fsm->power_up) && + fsm->b_ssend_srp && fsm->b_se0_srp) otg_set_state(fsm, OTG_STATE_B_SRP_INIT); break; case OTG_STATE_B_SRP_INIT: @@ -283,13 +294,14 @@ int otg_statemachine(struct otg_fsm *fsm) case OTG_STATE_B_HOST: if (!fsm->id || !fsm->b_sess_vld) otg_set_state(fsm, OTG_STATE_B_IDLE); - else if (!fsm->b_bus_req || !fsm->a_conn) + else if (!fsm->b_bus_req || !fsm->a_conn || fsm->test_device) otg_set_state(fsm, OTG_STATE_B_PERIPHERAL); break; case OTG_STATE_A_IDLE: if (fsm->id) otg_set_state(fsm, OTG_STATE_B_IDLE); - else if (!fsm->a_bus_drop && (fsm->a_bus_req || fsm->a_srp_det)) + else if (!fsm->a_bus_drop && (fsm->a_bus_req || + fsm->a_srp_det || fsm->adp_change || fsm->power_up)) otg_set_state(fsm, OTG_STATE_A_WAIT_VRISE); break; case OTG_STATE_A_WAIT_VRISE: |