drivers: mbox: Use nordic_tasks from dts instead of VPR_TASK definitions

Uses nordic_tasks from dts file to create mbox rx callbacks.

Signed-off-by: Erdem Simsek <[email protected]>

Author: erdemsimsek

drivers/mbox/mbox_nrf_vevif_task_rx.c

@@ -23,8 +23,8 @@ BUILD_ASSERT(VEVIF_TASKS_NUM == DT_NUM_IRQS(DT_DRV_INST(0)), "# IRQs != # tasks"
 
 /* callbacks */
 struct mbox_vevif_task_rx_cbs {
-	mbox_callback_t cb[TASKS_IDX_MAX - TASKS_IDX_MIN + 1U];
-	void *user_data[TASKS_IDX_MAX - TASKS_IDX_MIN + 1U];
+	mbox_callback_t cb[VEVIF_TASKS_NUM + 1U];
+	void *user_data[VEVIF_TASKS_NUM + 1U];
 	uint32_t enabled_mask;
 };
 
@@ -37,10 +37,17 @@ static const uint8_t vevif_irqs[VEVIF_TASKS_NUM] = {
 	LISTIFY(DT_NUM_IRQS(DT_DRV_INST(0)), VEVIF_IRQN, (,))
 };
 
+static inline uint8_t vevif_task_to_idx(uint32_t id)
+{
+	uint32_t mask_below = VEVIF_TASKS_MASK & ((1UL << id) - 1);
+
+	return __builtin_popcount(mask_below);
+}
+
 static void vevif_task_rx_isr(const void *parameter)
 {
 	uint8_t channel = *(uint8_t *)parameter;
-	uint8_t idx = channel - TASKS_IDX_MIN;
+	uint8_t idx = vevif_task_to_idx(channel);
 
 	nrf_vpr_csr_vevif_tasks_clear(BIT(channel));
 
@@ -65,12 +72,13 @@ static int vevif_task_rx_register_callback(const struct device *dev, uint32_t id
 					   mbox_callback_t cb, void *user_data)
 {
 	ARG_UNUSED(dev);
-	uint8_t idx = id - TASKS_IDX_MIN;
 
 	if (!vevif_task_rx_is_task_valid(id)) {
 		return -EINVAL;
 	}
 
+	uint8_t idx = vevif_task_to_idx(id);
+
 	cbs.cb[idx] = cb;
 	cbs.user_data[idx] = user_data;
 
@@ -80,12 +88,13 @@ static int vevif_task_rx_register_callback(const struct device *dev, uint32_t id
 static int vevif_task_rx_set_enabled(const struct device *dev, uint32_t id, bool enable)
 {
 	ARG_UNUSED(dev);
-	uint8_t idx = id - TASKS_IDX_MIN;
 
 	if (!vevif_task_rx_is_task_valid(id)) {
 		return -EINVAL;
 	}
 
+	uint8_t idx = vevif_task_to_idx(id);
+
 	if (enable) {
 		if ((cbs.enabled_mask & BIT(id)) != 0U) {
 			return -EALREADY;