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 09:44:47 -0500 |
| commit | 3294908bc0f178bfd67971fdb4432f3d4e50921e (patch) | |
| tree | 7f62bad6292a19e459d214857933188a8053b8e8 /drivers/usb/phy | |
| parent | f6de27eed372f41646b7bd95d6903923f5308517 (diff) | |
| download | blackbird-obmc-linux-3294908bc0f178bfd67971fdb4432f3d4e50921e.tar.gz blackbird-obmc-linux-3294908bc0f178bfd67971fdb4432f3d4e50921e.zip | |
usb: phy: Add and use missed OTG FSM timers
a_bidl_adis_tmr and a_wait_vfall_tmr OTG timers missed in
current FSM implementation. This patch adds and makes use
of the timers as speicfied 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')
| -rw-r--r-- | drivers/usb/phy/phy-fsm-usb.c | 12 | ||||
| -rw-r--r-- | drivers/usb/phy/phy-fsm-usb.h | 8 |
2 files changed, 17 insertions, 3 deletions
diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c index f8fe7ec620e6..5e899edcaf39 100644 --- a/drivers/usb/phy/phy-fsm-usb.c +++ b/drivers/usb/phy/phy-fsm-usb.c @@ -102,8 +102,12 @@ void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state) fsm->a_suspend_req = 0; break; case OTG_STATE_A_PERIPHERAL: + otg_del_timer(fsm, A_BIDL_ADIS); + fsm->a_bidl_adis_tmout = 0; break; case OTG_STATE_A_WAIT_VFALL: + otg_del_timer(fsm, A_WAIT_VFALL); + fsm->a_wait_vfall_tmout = 0; otg_del_timer(fsm, A_WAIT_VRISE); break; case OTG_STATE_A_VBUS_ERR: @@ -204,12 +208,14 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) otg_loc_sof(fsm, 0); otg_set_protocol(fsm, PROTO_GADGET); otg_drv_vbus(fsm, 1); + otg_add_timer(fsm, A_BIDL_ADIS); break; case OTG_STATE_A_WAIT_VFALL: otg_drv_vbus(fsm, 0); otg_loc_conn(fsm, 0); otg_loc_sof(fsm, 0); otg_set_protocol(fsm, PROTO_HOST); + otg_add_timer(fsm, A_WAIT_VFALL); break; case OTG_STATE_A_VBUS_ERR: otg_drv_vbus(fsm, 0); @@ -324,14 +330,14 @@ int otg_statemachine(struct otg_fsm *fsm) case OTG_STATE_A_PERIPHERAL: if (fsm->id || fsm->a_bus_drop) otg_set_state(fsm, OTG_STATE_A_WAIT_VFALL); - else if (fsm->b_bus_suspend) + else if (fsm->a_bidl_adis_tmout || fsm->b_bus_suspend) otg_set_state(fsm, OTG_STATE_A_WAIT_BCON); else if (!fsm->a_vbus_vld) otg_set_state(fsm, OTG_STATE_A_VBUS_ERR); break; case OTG_STATE_A_WAIT_VFALL: - if (fsm->id || fsm->a_bus_req || (!fsm->a_sess_vld && - !fsm->b_conn)) + if (fsm->a_wait_vfall_tmout || fsm->id || fsm->a_bus_req || + (!fsm->a_sess_vld && !fsm->b_conn)) otg_set_state(fsm, OTG_STATE_A_IDLE); break; case OTG_STATE_A_VBUS_ERR: diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h index b47b32c6ed1f..a74e14aaa839 100644 --- a/drivers/usb/phy/phy-fsm-usb.h +++ b/drivers/usb/phy/phy-fsm-usb.h @@ -35,13 +35,19 @@ #define PROTO_GADGET (2) enum otg_fsm_timer { + /* Standard OTG timers */ A_WAIT_VRISE, + A_WAIT_VFALL, A_WAIT_BCON, A_AIDL_BDIS, B_ASE0_BRST, + A_BIDL_ADIS, + + /* Auxiliary timers */ B_SE0_SRP, B_SRP_FAIL, A_WAIT_ENUM, + NUM_OTG_FSM_TIMERS, }; @@ -69,9 +75,11 @@ struct otg_fsm { /* Timeout indicator for timers */ int a_wait_vrise_tmout; + int a_wait_vfall_tmout; int a_wait_bcon_tmout; int a_aidl_bdis_tmout; int b_ase0_brst_tmout; + int a_bidl_adis_tmout; /* Informative variables */ int a_bus_drop; |
