Lock sleep when USB is initialized

None of the USB drivers currently support entering deep sleep mode
while USB is active. To protect USB from malfunctioning lock deep
sleep in USBPhyHw::init.

Author: c1728p9

usb/device/targets/TARGET_Freescale/USBPhy_Kinetis.cpp

@@ -106,7 +106,7 @@ USBPhy *get_usb_phy()
     return &usbphy;
 }
 
-USBPhyHw::USBPhyHw()
+USBPhyHw::USBPhyHw(): events(NULL)
 {
 
 }
@@ -117,6 +117,9 @@ USBPhyHw::~USBPhyHw()
 
 void USBPhyHw::init(USBPhyEvents *events)
 {
+    if (this->events == NULL) {
+        sleep_manager_lock_deep_sleep();
+    }
     this->events = events;
 
     // Disable IRQ
@@ -183,6 +186,11 @@ void USBPhyHw::deinit()
     disconnect();
     NVIC_DisableIRQ(USB0_IRQn);
     USB0->INTEN = 0;
+
+    if (events != NULL) {
+        sleep_manager_unlock_deep_sleep();
+    }
+    events = NULL;
 }
 
 bool USBPhyHw::powered()

usb/device/targets/TARGET_NXP/USBHAL_LPC17.cpp

@@ -369,7 +369,7 @@ USBPhy *get_usb_phy()
     return &usbphy;
 }
 
-USBPhyHw::USBPhyHw(void)
+USBPhyHw::USBPhyHw(void): events(NULL)
 {
 
 }
@@ -381,6 +381,9 @@ USBPhyHw::~USBPhyHw(void)
 
 void USBPhyHw::init(USBPhyEvents *events)
 {
+    if (this->events == NULL) {
+        sleep_manager_lock_deep_sleep();
+    }
     this->events = events;
 
     // Disable IRQ
@@ -440,6 +443,11 @@ void USBPhyHw::deinit()
     NVIC_DisableIRQ(USB_IRQn);
     events = NULL;
     opStarted = 0;
+
+    if (events != NULL) {
+        sleep_manager_unlock_deep_sleep();
+    }
+    events = NULL;
 }
 
 bool USBPhyHw::powered()

usb/device/targets/TARGET_RENESAS/TARGET_RZ_A1XX/USBPhy_RZ_A1.cpp

@@ -128,6 +128,9 @@ void USBPhyHw::init(USBPhyEvents *events)
 {
     volatile uint8_t dummy_read;
 
+    if (this->events == NULL) {
+        sleep_manager_lock_deep_sleep();
+    }
     this->events = events;
 
     /* registers me */
@@ -174,6 +177,11 @@ void USBPhyHw::deinit()
 #endif
     dummy_read = CPG.STBCR7;
     (void)dummy_read;
+
+    if (events != NULL) {
+        sleep_manager_unlock_deep_sleep();
+    }
+    events = NULL;
 }
 
 bool USBPhyHw::powered()

usb/device/targets/TARGET_STM/USBPhy_STM32.cpp

@@ -168,6 +168,9 @@ void USBPhyHw::init(USBPhyEvents *events)
 {
     NVIC_DisableIRQ(USBHAL_IRQn);
 
+    if (this->events == NULL) {
+        sleep_manager_lock_deep_sleep();
+    }
     this->events = events;
     sof_enabled = false;
     memset(epComplete, 0, sizeof(epComplete));
@@ -333,6 +336,11 @@ void USBPhyHw::deinit()
 {
     HAL_PCD_DeInit(&hpcd);
     NVIC_DisableIRQ(USBHAL_IRQn);
+
+    if (events != NULL) {
+        sleep_manager_unlock_deep_sleep();
+    }
+    events = NULL;
 }
 
 bool USBPhyHw::powered()