From: Sheldon Demario <sheldon.demario@xxxxxxxxxxxxx>
Extend adapter_ops adding a function to read the RSSI of an active
connection asynchronously. This patch extends hciops only, mgmtops
requires kernel changes to become functional.
---
plugins/hciops.c | 39 +++++++++++++++++++++++++++++++++++++++
plugins/mgmtops.c | 11 +++++++++++
src/adapter.h | 1 +
src/event.c | 8 ++++++++
src/event.h | 1 +
5 files changed, 60 insertions(+), 0 deletions(-)
diff --git a/plugins/hciops.c b/plugins/hciops.c
index 93cf822..a9cfc25 100644
--- a/plugins/hciops.c
+++ b/plugins/hciops.c
@@ -1789,6 +1789,22 @@ static inline void read_txpower_complete(int index, void *ptr)
btd_event_txpower_read(&dev->bdaddr, &conn->bdaddr, rp->level);
}
+static inline void read_rssi_complete(int index, void *ptr)
+{
+ struct dev_info *dev = &devs[index];
+ read_rssi_rp *rp = ptr;
+ struct bt_conn *conn;
+
+ if (rp->status)
+ return;
+
+ conn = find_conn_by_handle(dev, rp->handle);
+ if (conn == NULL)
+ return;
+
+ btd_event_rssi_read(&dev->bdaddr, &conn->bdaddr, rp->rssi);
+}
+
static inline void cmd_complete(int index, void *ptr)
{
struct dev_info *dev = &devs[index];
@@ -1863,6 +1879,9 @@ static inline void cmd_complete(int index, void *ptr)
case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_TRANSMIT_POWER_LEVEL):
ptr += sizeof(evt_cmd_complete);
read_txpower_complete(index, ptr);
+ case cmd_opcode_pack(OGF_STATUS_PARAM, OCF_READ_RSSI):
+ ptr += sizeof(evt_cmd_complete);
+ read_rssi_complete(index, ptr);
break;
};
}
@@ -3178,6 +3197,25 @@ static int hciops_read_clock(int index, bdaddr_t *bdaddr, int which,
return 0;
}
+static int hciops_read_rssi(int index, bdaddr_t *bdaddr)
+{
+ struct dev_info *dev = &devs[index];
+ uint16_t handle;
+ int err;
+
+ err = get_handle(index, bdaddr, &handle);
+ if (err < 0)
+ return err;
+
+ err = hci_send_cmd(dev->sk, OGF_STATUS_PARAM, OCF_READ_RSSI,
+ sizeof(handle), &handle);
+
+ if (err < 0 )
+ return -errno;
+
+ return 0;
+}
+
static int hciops_read_tx_power(int index, bdaddr_t *bdaddr)
{
struct dev_info *dev = &devs[index];
@@ -3706,6 +3744,7 @@ static struct btd_adapter_ops hci_ops = {
.set_dev_class = hciops_set_dev_class,
.set_fast_connectable = hciops_fast_connectable,
.read_clock = hciops_read_clock,
+ .read_rssi = hciops_read_rssi,
.read_tx_power = hciops_read_tx_power,
.read_bdaddr = hciops_read_bdaddr,
.block_device = hciops_block_device,
diff --git a/plugins/mgmtops.c b/plugins/mgmtops.c
index 7ee86de..3be2607 100644
--- a/plugins/mgmtops.c
+++ b/plugins/mgmtops.c
@@ -1673,6 +1673,16 @@ static int mgmt_read_clock(int index, bdaddr_t *bdaddr, int which, int timeout,
return -ENOSYS;
}
+static int mgmt_read_rssi(int index, bdaddr_t *bdaddr)
+{
+ char addr[18];
+
+ ba2str(bdaddr, addr);
+ DBG("index %d addr %s", index, addr);
+
+ return -ENOSYS;
+}
+
static int mgmt_read_tx_power(int index, bdaddr_t *bdaddr)
{
char addr[18];
@@ -2026,6 +2036,7 @@ static struct btd_adapter_ops mgmt_ops = {
.set_dev_class = mgmt_set_dev_class,
.set_fast_connectable = mgmt_fast_connectable,
.read_clock = mgmt_read_clock,
+ .read_rssi = mgmt_read_rssi,
.read_tx_power = mgmt_read_tx_power,
.read_bdaddr = mgmt_read_bdaddr,
.block_device = mgmt_block_device,
diff --git a/src/adapter.h b/src/adapter.h
index 1fa7431..342530c 100644
--- a/src/adapter.h
+++ b/src/adapter.h
@@ -182,6 +182,7 @@ struct btd_adapter_ops {
int (*set_fast_connectable) (int index, gboolean enable);
int (*read_clock) (int index, bdaddr_t *bdaddr, int which, int timeout,
uint32_t *clock, uint16_t *accuracy);
+ int (*read_rssi) (int index, bdaddr_t *bdaddr);
int (*read_tx_power) (int index, bdaddr_t *bdaddr);
int (*read_bdaddr) (int index, bdaddr_t *bdaddr);
int (*block_device) (int index, bdaddr_t *bdaddr);
diff --git a/src/event.c b/src/event.c
index e6383e6..4c613a3 100644
--- a/src/event.c
+++ b/src/event.c
@@ -483,3 +483,11 @@ void btd_event_txpower_read(bdaddr_t *local, bdaddr_t *peer, int8_t level)
ba2str(peer, peer_addr);
DBG("%s TX Power: %d", peer_addr, level);
}
+
+void btd_event_rssi_read(bdaddr_t *local, bdaddr_t *peer, int8_t rssi)
+{
+ char peer_addr[18];
+
+ ba2str(peer, peer_addr);
+ DBG("%s RSSI: %d", peer_addr, rssi);
+}
diff --git a/src/event.h b/src/event.h
index 011d933..e0148bb 100644
--- a/src/event.h
+++ b/src/event.h
@@ -41,3 +41,4 @@ int btd_event_user_notify(bdaddr_t *sba, bdaddr_t *dba, uint32_t passkey);
int btd_event_link_key_notify(bdaddr_t *local, bdaddr_t *peer, uint8_t *key,
uint8_t key_type, uint8_t pin_length);
void btd_event_txpower_read(bdaddr_t *local, bdaddr_t *peer, int8_t level);
+void btd_event_rssi_read(bdaddr_t *local, bdaddr_t *peer, int8_t rssi);
--
1.7.4.1
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