- wrap up hcd max3421, work well with nrf52840

- also add usbh_defer_func()

hw/bsp/nrf/family.c

@@ -109,10 +109,12 @@ void max3421e_int_handler(nrfx_gpiote_pin_t pin, nrf_gpiote_polarity_t action) {
 void tuh_max3421e_int_api(uint8_t rhport, bool enabled) {
   (void) rhport;
 
+  // use NVIC_Enable/Disable instead since nrfx_gpiote_trigger_enable/disable clear pending and can miss interrupt
+  // when disabled
   if (enabled) {
-    nrfx_gpiote_trigger_enable(MAX3241E_INTR_PIN, true);
+    NVIC_EnableIRQ(GPIOTE_IRQn);
   } else {
-    nrfx_gpiote_trigger_disable(MAX3241E_INTR_PIN);
+    NVIC_DisableIRQ(GPIOTE_IRQn);
   }
 }
 
@@ -266,6 +268,7 @@ void board_init(void) {
   in_config.pull = NRF_GPIO_PIN_PULLUP;
 
   nrfx_gpiote_in_init(MAX3241E_INTR_PIN, &in_config, max3421e_int_handler);
+  nrfx_gpiote_trigger_enable(MAX3241E_INTR_PIN, true);
 #endif
 
 }

src/host/usbh.c

@@ -753,29 +753,33 @@ bool tuh_edpt_abort_xfer(uint8_t daddr, uint8_t ep_addr) {
 // USBH API For Class Driver
 //--------------------------------------------------------------------+
 
-uint8_t usbh_get_rhport(uint8_t dev_addr)
-{
-  usbh_device_t* dev = get_device(dev_addr);
+uint8_t usbh_get_rhport(uint8_t dev_addr) {
+  usbh_device_t *dev = get_device(dev_addr);
   return dev ? dev->rhport : _dev0.rhport;
 }
 
-uint8_t* usbh_get_enum_buf(void)
-{
+uint8_t *usbh_get_enum_buf(void) {
   return _usbh_ctrl_buf;
 }
 
-void usbh_int_set(bool enabled)
-{
+void usbh_int_set(bool enabled) {
   // TODO all host controller if multiple are used since they shared the same event queue
-  if (enabled)
-  {
+  if (enabled) {
     hcd_int_enable(_usbh_controller);
-  }else
-  {
+  } else {
     hcd_int_disable(_usbh_controller);
   }
 }
 
+void usbh_defer_func(osal_task_func_t func, void *param, bool in_isr) {
+  hcd_event_t event = { 0 };
+  event.event_id = USBH_EVENT_FUNC_CALL;
+  event.func_call.func = func;
+  event.func_call.param = param;
+
+  osal_queue_send(_usbh_q, &event, in_isr);
+}
+
 //--------------------------------------------------------------------+
 // Endpoint API
 //--------------------------------------------------------------------+

src/host/usbh_pvt.h

@@ -24,8 +24,8 @@
  * This file is part of the TinyUSB stack.
  */
 
-#ifndef _TUSB_USBH_CLASSDRIVER_H_
-#define _TUSB_USBH_CLASSDRIVER_H_
+#ifndef _TUSB_USBH_PVT_H_
+#define _TUSB_USBH_PVT_H_
 
 #include "osal/osal.h"
 #include "common/tusb_fifo.h"
@@ -76,6 +76,8 @@ uint8_t* usbh_get_enum_buf(void);
 
 void usbh_int_set(bool enabled);
 
+void usbh_defer_func(osal_task_func_t func, void *param, bool in_isr);
+
 //--------------------------------------------------------------------+
 // USBH Endpoint API
 //--------------------------------------------------------------------+
@@ -85,12 +87,10 @@ bool usbh_edpt_xfer_with_callback(uint8_t dev_addr, uint8_t ep_addr, uint8_t * b
                                   tuh_xfer_cb_t complete_cb, uintptr_t user_data);
 
 TU_ATTR_ALWAYS_INLINE
-static inline bool usbh_edpt_xfer(uint8_t dev_addr, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes)
-{
+static inline bool usbh_edpt_xfer(uint8_t dev_addr, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes) {
   return usbh_edpt_xfer_with_callback(dev_addr, ep_addr, buffer, total_bytes, NULL, 0);
 }
 
-
 // Claim an endpoint before submitting a transfer.
 // If caller does not make any transfer, it must release endpoint for others.
 bool usbh_edpt_claim(uint8_t dev_addr, uint8_t ep_addr);

src/portable/analog/max3421/hcd_max3421.c

@@ -194,7 +194,6 @@ typedef struct {
   uint8_t hxfr;
 
   atomic_flag busy; // busy transferring
-  volatile uint8_t intr_disable_count;
   volatile uint16_t frame_count;
 
   max3421_ep_t ep[CFG_TUH_MAX3421_ENDPOINT_TOTAL]; // [0] is reserved for addr0
@@ -241,14 +240,6 @@ static void max3421_spi_unlock(uint8_t rhport, bool in_isr) {
   if (!in_isr) {
     tuh_max3421e_int_api(rhport, true);
     (void) osal_mutex_unlock(_hcd_data.spi_mutex);
-
-    // when re-enable interrupt, we may miss INTR edge (usually via GPIO detection interrupt).
-    // It would be ok if we are operating since SOF will re-trigger interrupt.
-    // However, for CONDET_IRQ i.e host not operating therefore we need to manually handle it here.
-    if (_hcd_data.hirq & HIRQ_CONDET_IRQ) {
-      handle_connect_irq(rhport, false);
-      hirq_write(rhport, HIRQ_CONDET_IRQ, false);
-    }
   }
 }
 
@@ -470,28 +461,13 @@ bool hcd_init(uint8_t rhport) {
 // Enable USB interrupt
 // Not actually enable GPIO interrupt, just set variable to prevent handler to process
 void hcd_int_enable (uint8_t rhport) {
-//  tuh_max3421e_int_api(rhport, true);
-
-  (void) rhport;
-  if (_hcd_data.intr_disable_count) {
-    _hcd_data.intr_disable_count--;
-  }
-
-  // when re-enable interrupt, we may miss INTR edge (usually via GPIO detection interrupt).
-  // It would be ok if we are operating since SOF will re-trigger interrupt.
-  // However, for CONDET_IRQ i.e host not operating therefore we need to manually handle it here.
-//  if (_hcd_data.hirq & HIRQ_CONDET_IRQ) {
-//    handle_connect_irq(rhport, false);
-//    hirq_write(rhport, HIRQ_CONDET_IRQ, false);
-//  }
+  tuh_max3421e_int_api(rhport, true);
 }
 
 // Disable USB interrupt
 // Not actually disable GPIO interrupt, just set variable to prevent handler to process
 void hcd_int_disable(uint8_t rhport) {
-  //tuh_max3421e_int_api(rhport, false);
-  (void) rhport;
-  _hcd_data.intr_disable_count++;
+  tuh_max3421e_int_api(rhport, false);
 }
 
 // Get frame number (1ms)
@@ -896,14 +872,6 @@ void hcd_int_handler(uint8_t rhport) {
     _hcd_data.frame_count++;
   }
 
-  // interrupt is disabled by usbh task: only ack FRAME IRQ and skip the rest
-  if (_hcd_data.intr_disable_count) {
-    if (hirq & HIRQ_FRAME_IRQ) {
-      hirq_write(rhport, HIRQ_FRAME_IRQ, true);
-    }
-    return;
-  }
-
   if (hirq & HIRQ_CONDET_IRQ) {
     handle_connect_irq(rhport, true);
   }