usb: Remove usbPowerOff(), move usbPowerOn() to usb_callbacks.c.

Remove usbPowerOn(), usbPowerOff() prototypes from usb.h.  These
aren't used outside of the USB subsystem, so they don't belong here.

Move usbPowerOn() from usb.c to usb_callbacks.c.  This is the only
place where it's used.  Remove the unused usbPowerOff() (from usb.c)
altogether.

Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>

3 files changed, 15 insertions, 31 deletions

diff --git a/libmaple/usb/usb.c b/libmaple/usb/usb.c
index 1754360..4f31c33 100644..100755
--- a/libmaple/usb/usb.c
+++ b/libmaple/usb/usb.c
@@ -191,34 +191,6 @@ void usbResume(RESUME_STATE eResumeSetVal) {
     }
 }
 
-RESULT usbPowerOn(void) {
-  u16 wRegVal;
-
-  wRegVal = CNTR_FRES;
-  _SetCNTR(wRegVal);
-
-  wInterrupt_Mask = 0;
-  _SetCNTR(wInterrupt_Mask);
-  _SetISTR(0);
-  wInterrupt_Mask = CNTR_RESETM | CNTR_SUSPM | CNTR_WKUPM; // the bare minimum
-  _SetCNTR(wInterrupt_Mask);
-
-  return USB_SUCCESS;
-}
-
-RESULT usbPowerOff(void) {
-  _SetCNTR(CNTR_FRES);
-  _SetISTR(0);
-  _SetCNTR(CNTR_FRES + CNTR_PDWN);
-
-  /* note that all weve done here is powerdown the
-     usb peripheral. we have no disabled the clocks,
-     pulled the usb_disc pin back up, or reset the
-     application state machines */
-
-  return USB_SUCCESS;
-}
-
 /* overloaded ISR routine, this is the main usb ISR */
 void __irq_usb_lp_can_rx0(void) {
 wIstr = _GetISTR();
diff --git a/libmaple/usb/usb.h b/libmaple/usb/usb.h
index 903964b..853300b 100644..100755
--- a/libmaple/usb/usb.h
+++ b/libmaple/usb/usb.h
@@ -66,9 +66,6 @@ void usbSuspend(void);
 void usbResumeInit(void);
 void usbResume(RESUME_STATE);
 
-RESULT usbPowerOn(void);
-RESULT usbPowerOff(void);
-
 /* overloaded ISR routine, this is the main usb ISR */
 void __irq_usb_lp_can_rx0(void);
 void usbWaitReset(void);
diff --git a/libmaple/usb/usb_callbacks.c b/libmaple/usb/usb_callbacks.c
index 72f97ad..5a69d4c 100644
--- a/libmaple/usb/usb_callbacks.c
+++ b/libmaple/usb/usb_callbacks.c
@@ -137,6 +137,21 @@ u8* vcomGetSetLineCoding(uint16 length) {
 void vcomSetLineState(void) {
 }
 
+static RESULT usbPowerOn(void) {
+  u16 wRegVal;
+
+  wRegVal = CNTR_FRES;
+  _SetCNTR(wRegVal);
+
+  wInterrupt_Mask = 0;
+  _SetCNTR(wInterrupt_Mask);
+  _SetISTR(0);
+  wInterrupt_Mask = CNTR_RESETM | CNTR_SUSPM | CNTR_WKUPM; // the bare minimum
+  _SetCNTR(wInterrupt_Mask);
+
+  return USB_SUCCESS;
+}
+
 void usbInit(void) {
     pInformation->Current_Configuration = 0;
     usbPowerOn();