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Bluedroid stack dynamic allocation changes to optimise DRAM usage

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Structures allocated dynamically:
tACL_CONN, tBTM_PM_MCB, tBTM_SEC_DEV_REC, tGATT_TCB, tGATT_CLCB, tL2C_LCB, tL2C_CCB, tSDP_RECORD
Total dynamic allocation size ~19KB.
Peak dram usage reduced by ~12KB when in BT classic + BLE scenario(1 a2dp sink + 1 BLE gatt server)
This commit is contained in:
sushant.chougule
2020-07-02 00:05:54 +05:30
parent ec661be38d
commit 0583a04969
30 changed files with 1035 additions and 815 deletions
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15
components/bt/host/bluedroid/stack/l2cap/l2c_main.c
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@@ -827,7 +827,6 @@ void l2c_process_held_packets(BOOLEAN timed_out)
*******************************************************************************/
void l2c_init (void)
{
INT16 xx;
#if L2C_DYNAMIC_MEMORY
l2c_cb_ptr = (tL2C_CB *)osi_malloc(sizeof(tL2C_CB));
#endif /* #if L2C_DYNAMIC_MEMORY */
@@ -835,9 +834,13 @@ void l2c_init (void)
/* the psm is increased by 2 before being used */
l2cb.dyn_psm = 0xFFF;
/* Put all the channel control blocks on the free queue */
for (xx = 0; xx < MAX_L2CAP_CHANNELS - 1; xx++) {
l2cb.ccb_pool[xx].p_next_ccb = &l2cb.ccb_pool[xx + 1];
l2cb.p_ccb_pool = list_new(osi_free_func);
if (l2cb.p_ccb_pool == NULL) {
L2CAP_TRACE_ERROR("%s unable to allocate memory for L2CAP channel control block", __func__);
}
l2cb.p_lcb_pool = list_new(osi_free_func);
if (l2cb.p_lcb_pool == NULL) {
L2CAP_TRACE_ERROR("%s unable to allocate memory for L2CAP Link control block", __func__);
}
#if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE)
@@ -846,8 +849,6 @@ void l2c_init (void)
#endif
l2cb.p_free_ccb_first = &l2cb.ccb_pool[0];
l2cb.p_free_ccb_last = &l2cb.ccb_pool[MAX_L2CAP_CHANNELS - 1];
#ifdef L2CAP_DESIRED_LINK_ROLE
l2cb.desire_role = L2CAP_DESIRED_LINK_ROLE;
@@ -892,6 +893,8 @@ void l2c_free(void)
{
list_free(l2cb.rcv_pending_q);
l2cb.rcv_pending_q = NULL;
list_free(l2cb.p_lcb_pool);
list_free(l2cb.p_ccb_pool);
#if L2C_DYNAMIC_MEMORY
FREE_AND_RESET(l2c_cb_ptr);
#endif