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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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9
components/bt/host/bluedroid/stack/l2cap/include/l2c_int.h
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@@ -25,7 +25,6 @@
#define L2C_INT_H
#include <stdbool.h>
#include "stack/btm_api.h"
#include "stack/l2c_api.h"
#include "stack/l2cdefs.h"
@@ -372,6 +371,7 @@ typedef struct {
#endif /* (L2CAP_ROUND_ROBIN_CHANNEL_SERVICE == TRUE) */
/* Define a link control block. There is one link control block between
** this device and any other device (i.e. BD ADDR).
*/
@@ -466,6 +466,7 @@ typedef struct t_l2c_linkcb {
} tL2C_LCB;
/* Define the L2CAP control structure
*/
typedef struct {
@@ -478,12 +479,10 @@ typedef struct {
BOOLEAN is_cong_cback_context;
tL2C_LCB lcb_pool[MAX_L2CAP_LINKS]; /* Link Control Block pool */
tL2C_CCB ccb_pool[MAX_L2CAP_CHANNELS]; /* Channel Control Block pool */
list_t *p_lcb_pool; /* Link Control Block pool */
list_t *p_ccb_pool; /* Channel Control Block pool */
tL2C_RCB rcb_pool[MAX_L2CAP_CLIENTS]; /* Registration info pool */
tL2C_CCB *p_free_ccb_first; /* Pointer to first free CCB */
tL2C_CCB *p_free_ccb_last; /* Pointer to last free CCB */
UINT8 desire_role; /* desire to be master/slave when accepting a connection */
BOOLEAN disallow_switch; /* FALSE, to allow switch at create conn */