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Commit 8e2a0d92 authored by Andrei Emeltchenko's avatar Andrei Emeltchenko Committed by Gustavo Padovan
Browse files

Bluetooth: AMP: Use HCI cmd to Read AMP Info 



When receiving A2MP Get Info Request execute Read Local AMP Info HCI
command to AMP controller with function to be executed upon receiving
command complete event. Function will handle A2MP Get Info Response.

Signed-off-by: default avatarAndrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: default avatarGustavo Padovan <gustavo.padovan@collabora.co.uk>
parent f97268fc

include/net/bluetooth/a2mp.h

+2 −0
Original line number Diff line number Diff line
@@ -132,5 +132,7 @@ int amp_mgr_put(struct amp_mgr *mgr); 
struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,

				       struct sk_buff *skb);

struct amp_mgr *amp_mgr_lookup_by_state(u8 state);

void a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len, void *data);

void a2mp_send_getinfo_rsp(struct hci_dev *hdev);



#endif /* __A2MP_H */

net/bluetooth/a2mp.c

+41 −16
Original line number Diff line number Diff line
@@ -41,8 +41,7 @@ static struct a2mp_cmd *__a2mp_build(u8 code, u8 ident, u16 len, void *data) 
	return cmd;

}



static void a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len,

		      void *data)

void a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len, void *data)

{

	struct l2cap_chan *chan = mgr->a2mp_chan;

	struct a2mp_cmd *cmd;
@@ -185,7 +184,6 @@ static int a2mp_getinfo_req(struct amp_mgr *mgr, struct sk_buff *skb, 
			    struct a2mp_cmd *hdr)

{

	struct a2mp_info_req *req  = (void *) skb->data;

	struct a2mp_info_rsp rsp;

	struct hci_dev *hdev;



	if (le16_to_cpu(hdr->len) < sizeof(*req))
@@ -193,23 +191,23 @@ static int a2mp_getinfo_req(struct amp_mgr *mgr, struct sk_buff *skb, 


	BT_DBG("id %d", req->id);



	hdev = hci_dev_get(req->id);

	if (!hdev) {

		struct a2mp_info_rsp rsp;



		rsp.id = req->id;

		rsp.status = A2MP_STATUS_INVALID_CTRL_ID;



	hdev = hci_dev_get(req->id);

	if (hdev && hdev->amp_type != HCI_BREDR) {

		rsp.status = 0;

		rsp.total_bw = cpu_to_le32(hdev->amp_total_bw);

		rsp.max_bw = cpu_to_le32(hdev->amp_max_bw);

		rsp.min_latency = cpu_to_le32(hdev->amp_min_latency);

		rsp.pal_cap = cpu_to_le16(hdev->amp_pal_cap);

		rsp.assoc_size = cpu_to_le16(hdev->amp_assoc_size);

		a2mp_send(mgr, A2MP_GETINFO_RSP, hdr->ident, sizeof(rsp),

			  &rsp);

	}



	if (hdev)

		hci_dev_put(hdev);

	if (hdev->dev_type != HCI_BREDR) {

		mgr->state = READ_LOC_AMP_INFO;

		hci_send_cmd(hdev, HCI_OP_READ_LOCAL_AMP_INFO, 0, NULL);

	}



	a2mp_send(mgr, A2MP_GETINFO_RSP, hdr->ident, sizeof(rsp), &rsp);

	hci_dev_put(hdev);



	skb_pull(skb, sizeof(*req));

	return 0;
@@ -599,3 +597,30 @@ struct amp_mgr *amp_mgr_lookup_by_state(u8 state) 


	return NULL;

}



void a2mp_send_getinfo_rsp(struct hci_dev *hdev)

{

	struct amp_mgr *mgr;

	struct a2mp_info_rsp rsp;



	mgr = amp_mgr_lookup_by_state(READ_LOC_AMP_INFO);

	if (!mgr)

		return;



	BT_DBG("%s mgr %p", hdev->name, mgr);



	rsp.id = hdev->id;

	rsp.status = A2MP_STATUS_INVALID_CTRL_ID;



	if (hdev->amp_type != HCI_BREDR) {

		rsp.status = 0;

		rsp.total_bw = cpu_to_le32(hdev->amp_total_bw);

		rsp.max_bw = cpu_to_le32(hdev->amp_max_bw);

		rsp.min_latency = cpu_to_le32(hdev->amp_min_latency);

		rsp.pal_cap = cpu_to_le16(hdev->amp_pal_cap);

		rsp.assoc_size = cpu_to_le16(hdev->amp_assoc_size);

	}



	a2mp_send(mgr, A2MP_GETINFO_RSP, mgr->ident, sizeof(rsp), &rsp);

	amp_mgr_put(mgr);

}

net/bluetooth/hci_event.c

+5 −1
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 
#include <net/bluetooth/bluetooth.h>

#include <net/bluetooth/hci_core.h>

#include <net/bluetooth/mgmt.h>

#include <net/bluetooth/a2mp.h>



/* Handle HCI Event packets */
@@ -846,7 +847,7 @@ static void hci_cc_read_local_amp_info(struct hci_dev *hdev, 
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);



	if (rp->status)

		return;

		goto a2mp_rsp;



	hdev->amp_status = rp->amp_status;

	hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
@@ -860,6 +861,9 @@ static void hci_cc_read_local_amp_info(struct hci_dev *hdev, 
	hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);



	hci_req_complete(hdev, HCI_OP_READ_LOCAL_AMP_INFO, rp->status);



a2mp_rsp:

	a2mp_send_getinfo_rsp(hdev);

}



static void hci_cc_delete_stored_link_key(struct hci_dev *hdev,