static void l2cap_send_reject(struct bt_conn *conn, uint8_t ident,
uint16_t reason, void *data, uint8_t data_len)
{
struct bt_l2cap_cmd_reject *rej;
struct bt_l2cap_sig_hdr *hdr;
struct net_buf *buf;
buf = bt_l2cap_create_pdu(&le_sig);
if (!buf) {
return;
}
hdr = net_buf_add(buf, sizeof(*hdr));
hdr->code = BT_L2CAP_CMD_REJECT;
hdr->ident = ident;
hdr->len = sys_cpu_to_le16(sizeof(*rej) + data_len);
rej = net_buf_add(buf, sizeof(*rej));
rej->reason = sys_cpu_to_le16(reason);
if (data) {
memcpy(net_buf_add(buf, data_len), data, data_len);
}
bt_l2cap_send(conn, BT_L2CAP_CID_LE_SIG, buf);
}
static int att_read_type(struct bt_conn *conn,
struct bt_gatt_discover_params *params)
{
struct net_buf *buf;
struct bt_att_read_type_req *req;
uint16_t *value;
buf = bt_att_create_pdu(conn, BT_ATT_OP_READ_TYPE_REQ, sizeof(*req));
if (!buf) {
return -ENOMEM;
}
req = net_buf_add(buf, sizeof(*req));
req->start_handle = sys_cpu_to_le16(params->start_handle);
req->end_handle = sys_cpu_to_le16(params->end_handle);
value = net_buf_add(buf, sizeof(*value));
if (params->type == BT_GATT_DISCOVER_INCLUDE)
*value = sys_cpu_to_le16(BT_UUID_GATT_INCLUDE_VAL);
else
*value = sys_cpu_to_le16(BT_UUID_GATT_CHRC_VAL);
BT_DBG("start_handle 0x%04x end_handle 0x%04x", params->start_handle,
params->end_handle);
return gatt_send(conn, buf, att_read_type_rsp, params, NULL);
}
int bt_l2cap_update_conn_param(struct bt_conn *conn,
const struct bt_le_conn_param *param)
{
struct bt_l2cap_sig_hdr *hdr;
struct bt_l2cap_conn_param_req *req;
struct net_buf *buf;
buf = bt_l2cap_create_pdu(&le_sig);
if (!buf) {
return -ENOBUFS;
}
hdr = net_buf_add(buf, sizeof(*hdr));
hdr->code = BT_L2CAP_CONN_PARAM_REQ;
hdr->ident = get_ident();
hdr->len = sys_cpu_to_le16(sizeof(*req));
req = net_buf_add(buf, sizeof(*req));
req->min_interval = sys_cpu_to_le16(param->interval_min);
req->max_interval = sys_cpu_to_le16(param->interval_max);
req->latency = sys_cpu_to_le16(param->latency);
req->timeout = sys_cpu_to_le16(param->timeout);
bt_l2cap_send(conn, BT_L2CAP_CID_LE_SIG, buf);
return 0;
}
static inline void encode_hdr(struct bt_monitor_hdr *hdr, u16_t opcode,
u16_t len)
{
struct bt_monitor_ts32 *ts;
hdr->opcode = sys_cpu_to_le16(opcode);
hdr->flags = 0;
ts = (void *)hdr->ext;
ts->type = BT_MONITOR_TS32;
ts->ts32 = sys_cpu_to_le32(k_uptime_get() * 10);
hdr->hdr_len = sizeof(*ts);
encode_drops(hdr, BT_MONITOR_COMMAND_DROPS, &drops.cmd);
encode_drops(hdr, BT_MONITOR_EVENT_DROPS, &drops.evt);
encode_drops(hdr, BT_MONITOR_ACL_TX_DROPS, &drops.acl_tx);
encode_drops(hdr, BT_MONITOR_ACL_RX_DROPS, &drops.acl_rx);
#if defined(CONFIG_BT_BREDR)
encode_drops(hdr, BT_MONITOR_SCO_TX_DROPS, &drops.sco_tx);
encode_drops(hdr, BT_MONITOR_SCO_RX_DROPS, &drops.sco_rx);
#endif
encode_drops(hdr, BT_MONITOR_OTHER_DROPS, &drops.other);
hdr->data_len = sys_cpu_to_le16(4 + hdr->hdr_len + len);
}
int bt_l2cap_chan_disconnect(struct bt_l2cap_chan *chan)
{
struct bt_conn *conn = chan->conn;
struct net_buf *buf;
struct bt_l2cap_disconn_req *req;
struct bt_l2cap_le_chan *ch;
if (!conn) {
return -ENOTCONN;
}
if (IS_ENABLED(CONFIG_BLUETOOTH_BREDR) &&
conn->type == BT_CONN_TYPE_BR) {
return bt_l2cap_br_chan_disconnect(chan);
}
ch = BT_L2CAP_LE_CHAN(chan);
BT_DBG("chan %p scid 0x%04x dcid 0x%04x", chan, ch->rx.cid,
ch->tx.cid);
ch->chan.ident = get_ident();
buf = l2cap_create_le_sig_pdu(BT_L2CAP_DISCONN_REQ, ch->chan.ident,
sizeof(*req));
req = net_buf_add(buf, sizeof(*req));
req->dcid = sys_cpu_to_le16(ch->tx.cid);
req->scid = sys_cpu_to_le16(ch->rx.cid);
l2cap_chan_send_req(ch, buf, L2CAP_DISC_TIMEOUT);
bt_l2cap_chan_set_state(chan, BT_L2CAP_DISCONNECT);
return 0;
}
static void l2cap_chan_update_credits(struct bt_l2cap_le_chan *chan)
{
struct net_buf *buf;
struct bt_l2cap_le_credits *ev;
uint16_t credits;
/* Only give more credits if it went bellow the defined threshold */
if (k_sem_count_get(&chan->rx.credits) >
L2CAP_LE_CREDITS_THRESHOLD(chan->rx.init_credits)) {
goto done;
}
/* Restore credits */
credits = chan->rx.init_credits - k_sem_count_get(&chan->rx.credits);
l2cap_chan_rx_give_credits(chan, credits);
buf = l2cap_create_le_sig_pdu(BT_L2CAP_LE_CREDITS, get_ident(),
sizeof(*ev));
ev = net_buf_add(buf, sizeof(*ev));
ev->cid = sys_cpu_to_le16(chan->rx.cid);
ev->credits = sys_cpu_to_le16(credits);
bt_l2cap_send(chan->chan.conn, BT_L2CAP_CID_LE_SIG, buf);
done:
BT_DBG("chan %p credits %u", chan, k_sem_count_get(&chan->rx.credits));
}
static uint8_t read_group_cb(const struct bt_gatt_attr *attr, void *user_data)
{
struct read_group_data *data = user_data;
struct bt_att *att = data->att;
struct bt_conn *conn = att->chan.conn;
int read;
/* Update group end_handle if attribute is not a service */
if (bt_uuid_cmp(attr->uuid, BT_UUID_GATT_PRIMARY) &&
bt_uuid_cmp(attr->uuid, BT_UUID_GATT_SECONDARY)) {
if (data->group && attr->handle > data->group->end_handle) {
data->group->end_handle = sys_cpu_to_le16(attr->handle);
}
return BT_GATT_ITER_CONTINUE;
}
/* If Group Type don't match skip */
if (bt_uuid_cmp(attr->uuid, data->uuid)) {
data->group = NULL;
return BT_GATT_ITER_CONTINUE;
}
BT_DBG("handle 0x%04x", attr->handle);
/* Stop if there is no space left */
if (data->rsp->len &&
att->chan.tx.mtu - data->buf->len < data->rsp->len) {
return BT_GATT_ITER_STOP;
}
/* Fast foward to next group position */
data->group = net_buf_add(data->buf, sizeof(*data->group));
/* Initialize group handle range */
data->group->start_handle = sys_cpu_to_le16(attr->handle);
data->group->end_handle = sys_cpu_to_le16(attr->handle);
/* Read attribute value and store in the buffer */
read = attr->read(conn, attr, data->buf->data + data->buf->len,
att->chan.tx.mtu - data->buf->len, 0);
if (read < 0) {
/* TODO: Handle read errors */
return BT_GATT_ITER_STOP;
}
if (!data->rsp->len) {
/* Set len to be the first group found */
data->rsp->len = read + sizeof(*data->group);
} else if (data->rsp->len != read + sizeof(*data->group)) {
/* All groups entries should have the same size */
data->buf->len -= sizeof(*data->group);
return false;
}
net_buf_add(data->buf, read);
/* Continue to find the end handle */
return BT_GATT_ITER_CONTINUE;
}
static uint8_t find_type_cb(const struct bt_gatt_attr *attr, void *user_data)
{
struct find_type_data *data = user_data;
struct bt_att *att = data->att;
struct bt_conn *conn = att->chan.conn;
int read;
uint8_t uuid[16];
/* Skip secondary services */
if (!bt_uuid_cmp(attr->uuid, BT_UUID_GATT_SECONDARY)) {
data->group = NULL;
return BT_GATT_ITER_CONTINUE;
}
/* Update group end_handle if not a primary service */
if (bt_uuid_cmp(attr->uuid, BT_UUID_GATT_PRIMARY)) {
if (data->group && attr->handle > data->group->end_handle) {
data->group->end_handle = sys_cpu_to_le16(attr->handle);
}
return BT_GATT_ITER_CONTINUE;
}
BT_DBG("handle 0x%04x", attr->handle);
/* stop if there is no space left */
if (att->chan.tx.mtu - data->buf->len < sizeof(*data->group)) {
return BT_GATT_ITER_STOP;
}
/* Read attribute value and store in the buffer */
read = attr->read(conn, attr, uuid, sizeof(uuid), 0);
if (read < 0) {
/*
* Since we don't know if it is the service with requested UUID,
* we cannot respond with an error to this request.
*/
data->group = NULL;
return BT_GATT_ITER_CONTINUE;
}
/* Check if data matches */
if (read != data->value_len || memcmp(data->value, uuid, read)) {
data->group = NULL;
return BT_GATT_ITER_CONTINUE;
}
/* If service has been found, error should be cleared */
data->err = 0x00;
/* Fast foward to next item position */
data->group = net_buf_add(data->buf, sizeof(*data->group));
data->group->start_handle = sys_cpu_to_le16(attr->handle);
data->group->end_handle = sys_cpu_to_le16(attr->handle);
/* continue to find the end_handle */
return BT_GATT_ITER_CONTINUE;
}
static void le_conn_param_update_req(struct bt_l2cap *l2cap, uint8_t ident,
struct net_buf *buf)
{
struct bt_conn *conn = l2cap->chan.chan.conn;
const struct bt_le_conn_param *param;
uint16_t min, max, latency, timeout;
bool params_valid;
struct bt_l2cap_sig_hdr *hdr;
struct bt_l2cap_conn_param_rsp *rsp;
struct bt_l2cap_conn_param_req *req = (void *)buf->data;
if (buf->len < sizeof(*req)) {
BT_ERR("Too small LE conn update param req");
return;
}
if (conn->role != BT_HCI_ROLE_MASTER) {
l2cap_send_reject(conn, ident, BT_L2CAP_REJ_NOT_UNDERSTOOD,
NULL, 0);
return;
}
min = sys_le16_to_cpu(req->min_interval);
max = sys_le16_to_cpu(req->max_interval);
latency = sys_le16_to_cpu(req->latency);
timeout = sys_le16_to_cpu(req->timeout);
param = BT_LE_CONN_PARAM(min, max, latency, timeout);
BT_DBG("min 0x%4.4x max 0x%4.4x latency: 0x%4.4x timeout: 0x%4.4x",
min, max, latency, timeout);
buf = bt_l2cap_create_pdu(&le_sig);
if (!buf) {
return;
}
params_valid = bt_le_conn_params_valid(min, max, latency, timeout);
hdr = net_buf_add(buf, sizeof(*hdr));
hdr->code = BT_L2CAP_CONN_PARAM_RSP;
hdr->ident = ident;
hdr->len = sys_cpu_to_le16(sizeof(*rsp));
rsp = net_buf_add(buf, sizeof(*rsp));
if (params_valid) {
rsp->result = sys_cpu_to_le16(BT_L2CAP_CONN_PARAM_ACCEPTED);
} else {
rsp->result = sys_cpu_to_le16(BT_L2CAP_CONN_PARAM_REJECTED);
}
bt_l2cap_send(l2cap->chan.chan.conn, BT_L2CAP_CID_LE_SIG, buf);
if (params_valid) {
bt_conn_le_conn_update(conn, param);
}
}
void bt_l2cap_send(struct bt_conn *conn, uint16_t cid, struct net_buf *buf)
{
struct bt_l2cap_hdr *hdr;
hdr = net_buf_push(buf, sizeof(*hdr));
hdr->len = sys_cpu_to_le16(buf->len - sizeof(*hdr));
hdr->cid = sys_cpu_to_le16(cid);
bt_conn_send(conn, buf);
}
static
uint8_t *generate_addressing_fields(struct net_if *iface,
struct ieee802154_fcf_seq *fs,
struct ieee802154_frame_params *params,
uint8_t *p_buf)
{
struct ieee802154_address_field *af;
struct ieee802154_address *src_addr;
if (fs->fc.dst_addr_mode != IEEE802154_ADDR_MODE_NONE) {
af = (struct ieee802154_address_field *)p_buf;
af->plain.pan_id = params->dst.pan_id;
if (fs->fc.dst_addr_mode == IEEE802154_ADDR_MODE_SHORT) {
af->plain.addr.short_addr =
sys_cpu_to_le16(params->dst.short_addr);
p_buf += IEEE802154_PAN_ID_LENGTH +
IEEE802154_SHORT_ADDR_LENGTH;
} else {
sys_memcpy_swap(af->plain.addr.ext_addr,
params->dst.ext_addr,
IEEE802154_EXT_ADDR_LENGTH);
p_buf += IEEE802154_PAN_ID_LENGTH +
IEEE802154_EXT_ADDR_LENGTH;
}
}
if (fs->fc.src_addr_mode == IEEE802154_ADDR_MODE_NONE) {
return p_buf;
}
af = (struct ieee802154_address_field *)p_buf;
if (!fs->fc.pan_id_comp) {
af->plain.pan_id = params->pan_id;
src_addr = &af->plain.addr;
p_buf += IEEE802154_PAN_ID_LENGTH;
} else {
src_addr = &af->comp.addr;
}
if (fs->fc.src_addr_mode == IEEE802154_ADDR_MODE_SHORT) {
src_addr->short_addr = sys_cpu_to_le16(params->short_addr);
p_buf += IEEE802154_SHORT_ADDR_LENGTH;
} else {
sys_memcpy_swap(src_addr->ext_addr, iface->link_addr.addr,
IEEE802154_EXT_ADDR_LENGTH);
p_buf += IEEE802154_EXT_ADDR_LENGTH;
}
return p_buf;
}
static void le_disconn_req(struct bt_l2cap *l2cap, uint8_t ident,
struct net_buf *buf)
{
struct bt_conn *conn = l2cap->chan.chan.conn;
struct bt_l2cap_le_chan *chan;
struct bt_l2cap_disconn_req *req = (void *)buf->data;
struct bt_l2cap_disconn_rsp *rsp;
struct bt_l2cap_sig_hdr *hdr;
uint16_t scid, dcid;
if (buf->len < sizeof(*req)) {
BT_ERR("Too small LE conn req packet size");
return;
}
dcid = sys_le16_to_cpu(req->dcid);
scid = sys_le16_to_cpu(req->scid);
BT_DBG("scid 0x%04x dcid 0x%04x", dcid, scid);
chan = l2cap_remove_tx_cid(conn, scid);
if (!chan) {
struct bt_l2cap_cmd_reject_cid_data data;
data.scid = req->scid;
data.dcid = req->dcid;
l2cap_send_reject(conn, ident, BT_L2CAP_REJ_INVALID_CID, &data,
sizeof(data));
return;
}
buf = bt_l2cap_create_pdu(&le_sig);
if (!buf) {
return;
}
hdr = net_buf_add(buf, sizeof(*hdr));
hdr->code = BT_L2CAP_DISCONN_RSP;
hdr->ident = ident;
hdr->len = sys_cpu_to_le16(sizeof(*rsp));
rsp = net_buf_add(buf, sizeof(*rsp));
rsp->dcid = sys_cpu_to_le16(chan->rx.cid);
rsp->scid = sys_cpu_to_le16(chan->tx.cid);
l2cap_chan_del(&chan->chan);
bt_l2cap_send(conn, BT_L2CAP_CID_LE_SIG, buf);
}
static uint8_t find_info_cb(const struct bt_gatt_attr *attr, void *user_data)
{
struct find_info_data *data = user_data;
struct bt_att *att = data->att;
BT_DBG("handle 0x%04x", attr->handle);
/* Initialize rsp at first entry */
if (!data->rsp) {
data->rsp = net_buf_add(data->buf, sizeof(*data->rsp));
data->rsp->format = (attr->uuid->type == BT_UUID_TYPE_16) ?
BT_ATT_INFO_16 : BT_ATT_INFO_128;
}
switch (data->rsp->format) {
case BT_ATT_INFO_16:
if (attr->uuid->type != BT_UUID_TYPE_16) {
return BT_GATT_ITER_STOP;
}
/* Fast foward to next item position */
data->info16 = net_buf_add(data->buf, sizeof(*data->info16));
data->info16->handle = sys_cpu_to_le16(attr->handle);
data->info16->uuid = sys_cpu_to_le16(BT_UUID_16(attr->uuid)->val);
if (att->chan.tx.mtu - data->buf->len > sizeof(*data->info16)) {
return BT_GATT_ITER_CONTINUE;
}
break;
case BT_ATT_INFO_128:
if (attr->uuid->type != BT_UUID_TYPE_128) {
return BT_GATT_ITER_STOP;
}
/* Fast foward to next item position */
data->info128 = net_buf_add(data->buf, sizeof(*data->info128));
data->info128->handle = sys_cpu_to_le16(attr->handle);
memcpy(data->info128->uuid, BT_UUID_128(attr->uuid)->val,
sizeof(data->info128->uuid));
if (att->chan.tx.mtu - data->buf->len >
sizeof(*data->info128)) {
return BT_GATT_ITER_CONTINUE;
}
}
return BT_GATT_ITER_STOP;
}
static inline void encode_hdr(struct bt_monitor_hdr *hdr, uint16_t opcode,
uint16_t len)
{
uint32_t ts32;
hdr->hdr_len = sizeof(hdr->type) + sizeof(hdr->ts32);
hdr->data_len = sys_cpu_to_le16(4 + hdr->hdr_len + len);
hdr->opcode = sys_cpu_to_le16(opcode);
hdr->flags = 0;
/* Extended header */
hdr->type = BT_MONITOR_TS32;
ts32 = k_uptime_get() * 10;
hdr->ts32 = sys_cpu_to_le32(ts32);
}
static ssize_t read_stepcadence_feature(struct bt_conn *conn,
const struct bt_gatt_attr *attr,
void *buf, uint16_t len,
uint16_t offset)
{
uint16_t rsc_feature = 0;
if (on_ble_rscs_get_stride_lenth() >= 0) {
rsc_feature |= 1;
}
if (on_ble_rscs_get_total_distance() >= 0) {
rsc_feature |= 2;
}
if (on_ble_rscs_get_walk_run() >= 0) {
rsc_feature |= 4;
}
#ifdef CONFIG_BLE_RSCS_MULTIPLE_SENSOR_LOCATION_SUPPORT
rsc_feature |= 10;
#endif
/* other optional elements not yet implemented
* - calibration procedure supported:
* rsc_feature |= 8;
*/
rsc_feature = sys_cpu_to_le16(rsc_feature);
return bt_gatt_attr_read(conn, attr, buf, len, offset, &rsc_feature,
sizeof(rsc_feature));
}
int bt_gatt_write_without_response(struct bt_conn *conn, uint16_t handle,
const void *data, uint16_t length, bool sign)
{
struct net_buf *buf;
struct bt_att_write_cmd *cmd;
if (!conn || !handle) {
return -EINVAL;
}
if (sign && write_signed_allowed(conn)) {
buf = bt_att_create_pdu(conn, BT_ATT_OP_SIGNED_WRITE_CMD,
sizeof(*cmd) + length + 12);
} else {
buf = bt_att_create_pdu(conn, BT_ATT_OP_WRITE_CMD,
sizeof(*cmd) + length);
}
if (!buf) {
return -ENOMEM;
}
cmd = net_buf_add(buf, sizeof(*cmd));
cmd->handle = sys_cpu_to_le16(handle);
memcpy(cmd->value, data, length);
net_buf_add(buf, length);
BT_DBG("handle 0x%04x length %u", handle, length);
return gatt_send(conn, buf, NULL, NULL, NULL);
}
static void generate_current_time(uint8_t *buf)
{
uint16_t year;
/* 'Exact Time 256' contains 'Day Date Time' which contains
* 'Date Time' - characteristic contains fields for:
* year, month, day, hours, minutes and seconds.
*/
year = sys_cpu_to_le16(2015);
memcpy(buf, &year, 2); /* year */
buf[2] = 5; /* months starting from 1 */
buf[3] = 30; /* day */
buf[4] = 12; /* hours */
buf[5] = 45; /* minutes */
buf[6] = 30; /* seconds */
/* 'Day of Week' part of 'Day Date Time' */
buf[7] = 1; /* day of week starting from 1 */
/* 'Fractions 256 part of 'Exact Time 256' */
buf[8] = 0;
/* Adjust reason */
buf[9] = 0; /* No update, change, etc */
}
ssize_t on_gap_rd_ppcp(struct bt_conn *conn,
const struct bt_gatt_attr *attr,
void *buf, uint16_t len,
uint16_t offset)
{
/* Default values */
struct gap_ppcp ppcp;
ppcp.interval_min = sys_cpu_to_le16(MIN_CONN_INTERVAL);
ppcp.interval_max = sys_cpu_to_le16(MAX_CONN_INTERVAL);
ppcp.slave_latency = sys_cpu_to_le16(SLAVE_LATENCY);
ppcp.link_sup_to = sys_cpu_to_le16(CONN_SUP_TIMEOUT);
return bt_gatt_attr_read(conn, attr, buf, len, offset, &ppcp,
sizeof(ppcp));
}
int bt_gatt_attr_read_ccc(struct bt_conn *conn,
const struct bt_gatt_attr *attr, void *buf,
uint16_t len, uint16_t offset)
{
struct _bt_gatt_ccc *ccc = attr->user_data;
uint16_t value;
size_t i;
for (i = 0; i < ccc->cfg_len; i++) {
if (bt_addr_le_cmp(&ccc->cfg[i].peer, &conn->le.dst)) {
continue;
}
value = sys_cpu_to_le16(ccc->cfg[i].value);
break;
}
/* Default to disable if there is no cfg for the peer */
if (i == ccc->cfg_len) {
value = 0x0000;
}
return bt_gatt_attr_read(conn, attr, buf, len, offset, &value,
sizeof(value));
}
int bt_gatt_write(struct bt_conn *conn, uint16_t handle, uint16_t offset,
const void *data, uint16_t length, bt_gatt_rsp_func_t func)
{
struct net_buf *buf;
struct bt_att_write_req *req;
if (!conn || !handle || !func) {
return -EINVAL;
}
/* Use Prepare Write if offset is set or Long Write is required */
if (offset || length > (bt_att_get_mtu(conn) - sizeof(*req) - 1)) {
return gatt_prepare_write(conn, handle, offset, data, length,
func);
}
buf = bt_att_create_pdu(conn, BT_ATT_OP_WRITE_REQ,
sizeof(*req) + length);
if (!buf) {
return -ENOMEM;
}
req = net_buf_add(buf, sizeof(*req));
req->handle = sys_cpu_to_le16(handle);
memcpy(req->value, data, length);
net_buf_add(buf, length);
BT_DBG("handle 0x%04x length %u", handle, length);
return gatt_send(conn, buf, att_write_rsp, func, NULL);
}
int bt_gatt_read(struct bt_conn *conn, struct bt_gatt_read_params *params)
{
struct net_buf *buf;
struct bt_att_read_req *req;
if (!conn || !params || !params->handle || !params->func ||
!params->destroy) {
return -EINVAL;
}
if (params->offset) {
return gatt_read_blob(conn, params);
}
buf = bt_att_create_pdu(conn, BT_ATT_OP_READ_REQ, sizeof(*req));
if (!buf) {
return -ENOMEM;
}
req = net_buf_add(buf, sizeof(*req));
req->handle = sys_cpu_to_le16(params->handle);
BT_DBG("handle 0x%04x", params->handle);
return gatt_send(conn, buf, att_read_rsp, params, NULL);
}
static void le_conn_param_update_req(struct bt_l2cap *l2cap, uint8_t ident,
struct net_buf *buf)
{
struct bt_conn *conn = l2cap->chan.chan.conn;
struct bt_le_conn_param param;
struct bt_l2cap_conn_param_rsp *rsp;
struct bt_l2cap_conn_param_req *req = (void *)buf->data;
bool accepted;
if (buf->len < sizeof(*req)) {
BT_ERR("Too small LE conn update param req");
return;
}
if (conn->role != BT_HCI_ROLE_MASTER) {
l2cap_send_reject(conn, ident, BT_L2CAP_REJ_NOT_UNDERSTOOD,
NULL, 0);
return;
}
param.interval_min = sys_le16_to_cpu(req->min_interval);
param.interval_max = sys_le16_to_cpu(req->max_interval);
param.latency = sys_le16_to_cpu(req->latency);
param.timeout = sys_le16_to_cpu(req->timeout);
BT_DBG("min 0x%04x max 0x%04x latency: 0x%04x timeout: 0x%04x",
param.interval_min, param.interval_max, param.latency,
param.timeout);
buf = l2cap_create_le_sig_pdu(BT_L2CAP_CONN_PARAM_RSP, ident,
sizeof(*rsp));
accepted = le_param_req(conn, ¶m);
rsp = net_buf_add(buf, sizeof(*rsp));
if (accepted) {
rsp->result = sys_cpu_to_le16(BT_L2CAP_CONN_PARAM_ACCEPTED);
} else {
rsp->result = sys_cpu_to_le16(BT_L2CAP_CONN_PARAM_REJECTED);
}
bt_l2cap_send(conn, BT_L2CAP_CID_LE_SIG, buf);
if (accepted) {
bt_conn_le_conn_update(conn, ¶m);
}
}
static int apds9960_ambient_setup(struct device *dev, int gain)
{
struct apds9960_data *data = dev->driver_data;
u16_t th;
/* ADC value */
if (i2c_reg_write_byte(data->i2c, APDS9960_I2C_ADDRESS,
APDS9960_ATIME_REG, APDS9960_DEFAULT_ATIME)) {
LOG_ERR("Default integration time not set for ADC");
return -EIO;
}
/* ALS Gain */
if (i2c_reg_update_byte(data->i2c, APDS9960_I2C_ADDRESS,
APDS9960_CONTROL_REG,
APDS9960_CONTROL_AGAIN,
(gain & APDS9960_AGAIN_64X))) {
LOG_ERR("Ambient Gain is not set");
return -EIO;
}
th = sys_cpu_to_le16(APDS9960_DEFAULT_AILT);
if (i2c_burst_write(data->i2c, APDS9960_I2C_ADDRESS,
APDS9960_INT_AILTL_REG,
(u8_t *)&th, sizeof(th))) {
LOG_ERR("ALS low threshold not set");
return -EIO;
}
th = sys_cpu_to_le16(APDS9960_DEFAULT_AIHT);
if (i2c_burst_write(data->i2c, APDS9960_I2C_ADDRESS,
APDS9960_INT_AIHTL_REG,
(u8_t *)&th, sizeof(th))) {
LOG_ERR("ALS low threshold not set");
return -EIO;
}
/* Enable ALS */
if (i2c_reg_update_byte(data->i2c, APDS9960_I2C_ADDRESS,
APDS9960_ENABLE_REG, APDS9960_ENABLE_AEN,
APDS9960_ENABLE_AEN)) {
LOG_ERR("ALS is not enabled");
return -EIO;
}
return 0;
}
static ssize_t read_appearance(struct bt_conn *conn,
const struct bt_gatt_attr *attr, void *buf,
uint16_t len, uint16_t offset)
{
uint16_t appearance = sys_cpu_to_le16(gap_appearance);
return bt_gatt_attr_read(conn, attr, buf, len, offset, &appearance,
sizeof(appearance));
}
static ssize_t read_u16(struct bt_conn *conn, const struct bt_gatt_attr *attr,
void *buf, uint16_t len, uint16_t offset)
{
const uint16_t *u16 = attr->user_data;
uint16_t value = sys_cpu_to_le16(*u16);
return bt_gatt_attr_read(conn, attr, buf, len, offset, &value,
sizeof(value));
}
int bt_l2cap_update_conn_param(struct bt_conn *conn,
const struct bt_le_conn_param *param)
{
struct bt_l2cap_conn_param_req *req;
struct net_buf *buf;
buf = l2cap_create_le_sig_pdu(BT_L2CAP_CONN_PARAM_REQ, get_ident(),
sizeof(*req));
req = net_buf_add(buf, sizeof(*req));
req->min_interval = sys_cpu_to_le16(param->interval_min);
req->max_interval = sys_cpu_to_le16(param->interval_max);
req->latency = sys_cpu_to_le16(param->latency);
req->timeout = sys_cpu_to_le16(param->timeout);
bt_l2cap_send(conn, BT_L2CAP_CID_LE_SIG, buf);
return 0;
}
int bt_gatt_attr_read_cep(struct bt_conn *conn,
const struct bt_gatt_attr *attr, void *buf,
uint16_t len, uint16_t offset)
{
struct bt_gatt_cep *value = attr->user_data;
uint16_t props = sys_cpu_to_le16(value->properties);
return bt_gatt_attr_read(conn, attr, buf, len, offset, &props,
sizeof(props));
}
static int gatt_read_blob(struct bt_conn *conn,
struct bt_gatt_read_params *params)
{
struct net_buf *buf;
struct bt_att_read_blob_req *req;
buf = bt_att_create_pdu(conn, BT_ATT_OP_READ_BLOB_REQ, sizeof(*req));
if (!buf) {
return -ENOMEM;
}
req = net_buf_add(buf, sizeof(*req));
req->handle = sys_cpu_to_le16(params->handle);
req->offset = sys_cpu_to_le16(params->offset);
BT_DBG("handle 0x%04x offset 0x%04x", params->handle, params->offset);
return gatt_send(conn, buf, att_read_rsp, params, NULL);
}
int bt_l2cap_chan_disconnect(struct bt_l2cap_chan *chan)
{
struct bt_conn *conn = chan->conn;
struct net_buf *buf;
struct bt_l2cap_disconn_req *req;
struct bt_l2cap_sig_hdr *hdr;
struct bt_l2cap_le_chan *ch;
if (!conn) {
return -ENOTCONN;
}
#if defined(CONFIG_BLUETOOTH_BREDR)
if (conn->type == BT_CONN_TYPE_BR) {
return bt_l2cap_br_chan_disconnect(chan);
}
#endif /* CONFIG_BLUETOOTH_BREDR */
ch = LE_CHAN(chan);
BT_DBG("chan %p scid 0x%04x dcid 0x%04x", chan, ch->rx.cid,
ch->tx.cid);
buf = bt_l2cap_create_pdu(&le_sig);
if (!buf) {
BT_ERR("Unable to send L2CP disconnect request");
return -ENOMEM;
}
hdr = net_buf_add(buf, sizeof(*hdr));
hdr->code = BT_L2CAP_DISCONN_REQ;
hdr->ident = get_ident();
hdr->len = sys_cpu_to_le16(sizeof(*req));
req = net_buf_add(buf, sizeof(*req));
req->dcid = sys_cpu_to_le16(ch->tx.cid);
req->scid = sys_cpu_to_le16(ch->rx.cid);
bt_l2cap_send(conn, BT_L2CAP_CID_LE_SIG, buf);
return 0;
}
static int att_find_info(struct bt_conn *conn,
struct bt_gatt_discover_params *params)
{
struct net_buf *buf;
struct bt_att_find_info_req *req;
buf = bt_att_create_pdu(conn, BT_ATT_OP_FIND_INFO_REQ, sizeof(*req));
if (!buf) {
return -ENOMEM;
}
req = net_buf_add(buf, sizeof(*req));
req->start_handle = sys_cpu_to_le16(params->start_handle);
req->end_handle = sys_cpu_to_le16(params->end_handle);
BT_DBG("start_handle 0x%04x end_handle 0x%04x", params->start_handle,
params->end_handle);
return gatt_send(conn, buf, att_find_info_rsp, params, NULL);
}