Commit 46e9679c authored by Vinayak Kariappa Chettimada's avatar Vinayak Kariappa Chettimada Committed by Carles Cufi
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Bluetooth: controller: Add function to calculate BIS access address 



Added a function to calculate the BIS SubEvent access
addresses.

Signed-off-by: default avatarVinayak Kariappa Chettimada <vich@nordicsemi.no>
parent aa11d9ca

subsys/bluetooth/controller/ll_sw/nordic/lll/lll_adv_iso.c

+4 −19
Original line number Diff line number Diff line
@@ -165,8 +165,8 @@ static int prepare_cb_common(struct lll_prepare_param *p) 
	uint32_t ticks_at_start;

	uint16_t event_counter;

	uint8_t access_addr[4];

	uint8_t crc_init[3];

	uint8_t data_chan_use;

	uint8_t crc_init[3];

	struct pdu_bis *pdu;

	struct ull_hdr *ull;

	uint32_t remainder;
@@ -196,24 +196,8 @@ static int prepare_cb_common(struct lll_prepare_param *p) 
				       lll->data_chan_count);



	/* Calculate the Access Address for the BIS event */

	/* FIXME: */

	bis = 1;

	{

		uint8_t dwh[2];

		uint8_t d;



		d = ((35 * bis) + 42) & 0x7f;

		if (d & 1) {

			dwh[1] = 0xFC;

		} else {

			dwh[1] = 0;

		}

		dwh[1] |= (d & 0x02) | ((d >> 6) & 0x01);

		dwh[0] = ((d & 0x02) << 7) | (d & 0x30) | ((d & 0x0C) >> 1);

		memcpy(access_addr, lll->seed_access_addr, sizeof(access_addr));

		access_addr[3] ^= dwh[1];

		access_addr[2] ^= dwh[0];

	}

	bis = 1U;

	util_bis_aa_le32(bis, lll->seed_access_addr, access_addr);



	/* Calculate the CRC init value for the BIS event,

	 * preset with the BaseCRCInit value from the BIGInfo data the most
@@ -225,6 +209,7 @@ static int prepare_cb_common(struct lll_prepare_param *p) 


	/* Start setting up of Radio h/w */

	radio_reset();



#if defined(CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL)

	radio_tx_power_set(lll->tx_pwr_lvl);

#else

subsys/bluetooth/controller/ll_sw/nordic/lll/lll_sync_iso.c

+2 −18
Original line number Diff line number Diff line
@@ -208,24 +208,8 @@ static int prepare_cb_common(struct lll_prepare_param *p) 
				       lll->data_chan_count);



	/* Calculate the Access Address for the BIS event */

	/* FIXME: */

	bis = 1;

	{

		uint8_t dwh[2];

		uint8_t d;



		d = ((35 * bis) + 42) & 0x7f;

		if (d & 1) {

			dwh[1] = 0xFC;

		} else {

			dwh[1] = 0;

		}

		dwh[1] |= (d & 0x02) | ((d >> 6) & 0x01);

		dwh[0] = ((d & 0x02) << 7) | (d & 0x30) | ((d & 0x0C) >> 1);

		memcpy(access_addr, lll->seed_access_addr, sizeof(access_addr));

		access_addr[3] ^= dwh[1];

		access_addr[2] ^= dwh[0];

	}

	bis = 1U;

	util_bis_aa_le32(bis, lll->seed_access_addr, access_addr);



	/* Calculate the CRC init value for the BIS event,

	 * preset with the BaseCRCInit value from the BIGInfo data the most

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