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Bluetooth: controller: commentary and readability improvements

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* Rename the stack local 'done' to 'evdone' so as to disambiguate from
  MFIFO_DEQUEUE_PEEK(done) which is actually 'mfifo_done'.

* add comment on ull_slave_done

* add comments to addr_us_get

* add comments to HCI_CLASS

Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
This commit is contained in:
Mark Ruvald Pedersen 2019-02-27 10:40:03 +01:00 • committed by Carles Cufí
commit 99fae68010
5 changed files with 34 additions and 13 deletions
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7
subsys/bluetooth/controller/hci/hci_driver.c
View file

@ -71,9 +71,12 @@ static s32_t hbuf_count;
#endif
/**
* @brief Pull from memq_ll_rx and push up to Host thread recv_thread()
* via recv_fifo
* @brief Handover from Controller thread to Host thread
* @details Execution context: Controller thread
* Pull from memq_ll_rx and push up to Host thread recv_thread() via recv_fifo
* @param p1 Unused. Required to conform with Zephyr thread protoype
* @param p2 Unused. Required to conform with Zephyr thread protoype
* @param p3 Unused. Required to conform with Zephyr thread protoype
*/
static void prio_recv_thread(void *p1, void *p2, void *p3)
{

16
subsys/bluetooth/controller/hci/hci_internal.h
View file

@ -14,10 +14,18 @@ extern atomic_t hci_state_mask;
#define HCI_STATE_BIT_RESET 0
#endif
#define HCI_CLASS_EVT_REQUIRED 0
#define HCI_CLASS_EVT_DISCARDABLE 1
#define HCI_CLASS_EVT_CONNECTION 2
#define HCI_CLASS_ACL_DATA 3
#define HCI_CLASS_EVT_REQUIRED 0 /* Mesh and connection-{established,
* disconnected}
*/
#define HCI_CLASS_EVT_DISCARDABLE 1 /* Best-effort reporting. Discardable
* over HCI in case of overflow
*/
#define HCI_CLASS_EVT_CONNECTION 2 /* Connection management; e.g.
* terminate, update, encryption
*/
#define HCI_CLASS_ACL_DATA 3 /* Asynchronous Connection Less (general
* data)
*/
#if defined(CONFIG_SOC_COMPATIBLE_NRF)
#define BT_HCI_VS_HW_PLAT BT_HCI_VS_HW_PLAT_NORDIC

6
subsys/bluetooth/controller/ll_sw/ctrl.c
View file

@ -648,11 +648,11 @@ static inline u32_t addr_us_get(u8_t phy)
{
switch (phy) {
default:
case BIT(0):
case BIT(0): /* 1Mbps */
return 40;
case BIT(1):
case BIT(1): /* 2Mbps */
return 24;
case BIT(2):
case BIT(2): /* Coded */
return 376;
}
}

11
subsys/bluetooth/controller/ll_sw/ull.c
View file

@ -365,6 +365,9 @@ void ll_reset(void)
* @brief Peek the next node_rx to send up to Host
* @details Tightly coupled with prio_recv_thread()
* Execution context: Controller thread
*
* @param node_rx[out] Pointer to rx node at head of queue
* @param handle[out] Connection handle
* @return TX completed
*/
u8_t ll_rx_get(void **node_rx, u16_t *handle)
@ -1032,14 +1035,14 @@ void *ull_prepare_dequeue_iter(u8_t *idx)
void *ull_event_done_extra_get(void)
{
struct node_rx_event_done *done;
struct node_rx_event_done *evdone;
done = MFIFO_DEQUEUE_PEEK(done);
if (!done) {
evdone = MFIFO_DEQUEUE_PEEK(done);
if (!evdone) {
return NULL;
}
return &done->extra;
return &evdone->extra;
}
void *ull_event_done(void *param)

7
subsys/bluetooth/controller/ll_sw/ull_slave.c
View file

@ -346,6 +346,13 @@ void ull_slave_setup(memq_link_t *link, struct node_rx_hdr *rx,
#endif
}
/**
* @brief Extract timing from completed event
*
* @param node_rx_event_done[in] Done event containing fresh timing information
* @param ticks_drift_plus[out] Positive part of drift uncertainty window
* @param ticks_drift_minus[out] Negative part of drift uncertainty window
*/
void ull_slave_done(struct node_rx_event_done *done, u32_t *ticks_drift_plus,
u32_t *ticks_drift_minus)
{