diff options
| author | Li Jun <B47624@freescale.com> | 2014-04-23 11:56:44 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-24 23:56:34 +0400 |
| commit | 57677be5ef838743561f4c1d16821dda0438d362 (patch) | |
| tree | b2c6c47afeb0ff704caeb50dd50cd8bb72540c34 /drivers/usb/chipidea/ci.h | |
| parent | be696aac3850f481a9d1dfea7ea1c9505ecc970b (diff) | |
| download | linux-57677be5ef838743561f4c1d16821dda0438d362.tar.xz | |
usb: chipidea: usb OTG fsm initialization.
This patch adds OTG fsm related initialization when do otg init,
add a seperate file for OTG fsm related utilities.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <b47624@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea/ci.h')
| -rw-r--r-- | drivers/usb/chipidea/ci.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index 7ae8cb680321..bd3529f29e86 100644 --- a/drivers/usb/chipidea/ci.h +++ b/drivers/usb/chipidea/ci.h @@ -17,6 +17,7 @@ #include <linux/irqreturn.h> #include <linux/usb.h> #include <linux/usb/gadget.h> +#include <linux/usb/otg-fsm.h> /****************************************************************************** * DEFINE @@ -139,6 +140,7 @@ struct hw_bank { * @roles: array of supported roles for this controller * @role: current role * @is_otg: if the device is otg-capable + * @fsm: otg finite state machine * @work: work for role changing * @wq: workqueue thread * @qh_pool: allocation pool for queue heads @@ -174,6 +176,7 @@ struct ci_hdrc { struct ci_role_driver *roles[CI_ROLE_END]; enum ci_role role; bool is_otg; + struct otg_fsm fsm; struct work_struct work; struct workqueue_struct *wq; @@ -319,6 +322,20 @@ static inline u32 hw_test_and_write(struct ci_hdrc *ci, enum ci_hw_regs reg, return (val & mask) >> __ffs(mask); } +/** + * ci_otg_is_fsm_mode: runtime check if otg controller + * is in otg fsm mode. + */ +static inline bool ci_otg_is_fsm_mode(struct ci_hdrc *ci) +{ +#ifdef CONFIG_USB_OTG_FSM + return ci->is_otg && ci->roles[CI_ROLE_HOST] && + ci->roles[CI_ROLE_GADGET]; +#else + return false; +#endif +} + u32 hw_read_intr_enable(struct ci_hdrc *ci); u32 hw_read_intr_status(struct ci_hdrc *ci); |