77     hal_gpio_state_t *head = s_GpioHead;  in HAL_GpioInterruptHandle()  local
81     while (NULL != head)  in HAL_GpioInterruptHandle()
83         if (head->port == port)  in HAL_GpioInterruptHandle()
87         head = head->next;  in HAL_GpioInterruptHandle()
90     if (NULL == head)  in HAL_GpioInterruptHandle()
95     head = s_GpioHead;  in HAL_GpioInterruptHandle()
110         while (NULL != head)  in HAL_GpioInterruptHandle()
112             if ((pin == head->pin) && (port == head->port))  in HAL_GpioInterruptHandle()
114                 if (NULL != head->callback)  in HAL_GpioInterruptHandle()
116                     head->callback(head->callbackParam);  in HAL_GpioInterruptHandle()
125             head = head->next;  in HAL_GpioInterruptHandle()
131 static hal_gpio_status_t HAL_GpioConflictSearch(hal_gpio_state_t *head, uint8_t port, uint8_t pin)  in HAL_GpioConflictSearch()  argument
133     while (NULL != head)  in HAL_GpioConflictSearch()
135         if ((head->port == port) && (head->pin == pin))  in HAL_GpioConflictSearch()
139         head = head->next;  in HAL_GpioConflictSearch()
145 static hal_gpio_status_t HAL_GpioAddItem(hal_gpio_state_t **head, hal_gpio_state_t *node)  in HAL_GpioAddItem()  argument
147     hal_gpio_state_t *p = *head;  in HAL_GpioAddItem()
148     hal_gpio_state_t *q = *head;  in HAL_GpioAddItem()
155         *head = node;  in HAL_GpioAddItem()
177 static hal_gpio_status_t HAL_GpioRemoveItem(hal_gpio_state_t **head, hal_gpio_state_t *node)  in HAL_GpioRemoveItem()  argument
179     hal_gpio_state_t *p = *head;  in HAL_GpioRemoveItem()
190                 *head = p->next;  in HAL_GpioRemoveItem()