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Commit 1a9bcba0 authored by weifan.zhang's avatar weifan.zhang Committed by Weifan
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[ALPS08619561] Add VSC Cmd for Mediatek chip 

[Description]
Add VSC cmd for low latency mode

CR-Id: ALPS08619561

Bug: 309700239
Test: m .
Flag: EXEMPT VSC command

Change-Id: I789b6bddfc6b5661430b399943d1288a7c52e988
parent ebe3489f

system/stack/include/hcidefs.h

+1 −1
Original line number Diff line number Diff line
@@ -930,7 +930,7 @@ typedef struct { 
#define HCI_UNISOC_ACL_HIGH_PRIORITY 0xFF



/* Parameter information for HCI_MTK_SET_ACL_PRIORITY */

#define HCI_MTK_ACL_PRIORITY_PARAM_SIZE 1

#define HCI_MTK_ACL_PRIORITY_PARAM_SIZE 4

#define HCI_MTK_SET_ACL_PRIORITY (0xFD95 | HCI_GRP_VENDOR_SPECIFIC)

#define HCI_MTK_ACL_NORMAL_PRIORITY 0x00

#define HCI_MTK_ACL_HIGH_PRIORITY 0x01

system/stack/l2cap/l2c_utils.cc

+32 −32
Original line number Diff line number Diff line
@@ -2340,34 +2340,6 @@ static void l2cu_set_acl_priority_unisoc(tL2C_LCB* p_lcb, 
                            HCI_UNISOC_ACL_PRIORITY_PARAM_SIZE, command, NULL);

}



/*******************************************************************************

 *

 * Function         l2cu_set_acl_priority_latency_mtk

 *

 * Description      Sends a VSC to set the ACL priority and recorded latency on

 *                  Mediatek chip.

 *

 * Returns          void

 *

 ******************************************************************************/



static void l2cu_set_acl_priority_latency_mtk(tL2C_LCB* p_lcb,

                                               tL2CAP_PRIORITY priority) {

  uint8_t vs_param;

  if (priority == L2CAP_PRIORITY_HIGH) {

    // priority to high, if using latency mode check preset latency

    log::info("Set ACL priority: High Priority Mode");

    vs_param = HCI_MTK_ACL_HIGH_PRIORITY;

  } else {

    // priority to normal

    log::info("Set ACL priority: Normal Mode");

    vs_param = HCI_MTK_ACL_NORMAL_PRIORITY;

  }



  BTM_VendorSpecificCommand(HCI_MTK_SET_ACL_PRIORITY,

                            HCI_MTK_ACL_PRIORITY_PARAM_SIZE, &vs_param, NULL);

}



/*******************************************************************************

 *

 * Function         l2cu_set_acl_priority
@@ -2413,10 +2385,6 @@ bool l2cu_set_acl_priority(const RawAddress& bd_addr, tL2CAP_PRIORITY priority, 
        l2cu_set_acl_priority_unisoc(p_lcb, priority);

        break;



      case LMP_COMPID_MEDIATEK:

        l2cu_set_acl_priority_latency_mtk(p_lcb, priority);

        break;



      default:

        /* Not supported/required for other vendors */

        break;
@@ -2484,6 +2452,34 @@ static void l2cu_set_acl_latency_syna(tL2C_LCB* p_lcb, tL2CAP_LATENCY latency) { 
                            HCI_SYNA_ACL_PRIORITY_PARAM_SIZE, command, NULL);

}



/*******************************************************************************

 *

 * Function         l2cu_set_acl_latency_mtk

 *

 * Description      Sends a VSC to set the ACL latency on Mediatek chip.

 *

 * Returns          void

 *

 ******************************************************************************/



static void l2cu_set_acl_latency_mtk(tL2CAP_LATENCY latency) {

  log::info("Set ACL latency: {}",

            latency == L2CAP_LATENCY_LOW ? "Low Latancy" : "Normal Latency");



  uint8_t command[HCI_MTK_ACL_PRIORITY_PARAM_SIZE];

  uint8_t* pp = command;

  uint8_t vs_param = latency == L2CAP_LATENCY_LOW

                         ? HCI_MTK_ACL_HIGH_PRIORITY

                         : HCI_MTK_ACL_NORMAL_PRIORITY;

  UINT8_TO_STREAM(pp, vs_param);

  UINT8_TO_STREAM(pp, 0);

  UINT16_TO_STREAM(pp, 0);  //reserved bytes



  BTM_VendorSpecificCommand(HCI_MTK_SET_ACL_PRIORITY,

                            HCI_MTK_ACL_PRIORITY_PARAM_SIZE, command, NULL);

}





/*******************************************************************************

 *

 * Function         l2cu_set_acl_latency
@@ -2516,6 +2512,10 @@ bool l2cu_set_acl_latency(const RawAddress& bd_addr, tL2CAP_LATENCY latency) { 
        l2cu_set_acl_latency_syna(p_lcb, latency);

        break;



      case LMP_COMPID_MEDIATEK:

        l2cu_set_acl_latency_mtk(latency);

        break;



      default:

        /* Not supported/required for other vendors */

        break;