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Bluetooth: Enable controller to host flow control in HCI init

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To start supporting controller to host flow control we need to tell
the controller our supported packet count & MTU and send the enabling
HCI command. This patch does the necessary addition to the HCI init
procedure.

Change-Id: I51a66f8cc3a85782a5085f9aae0f4aeb59decad3
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Johan Hedberg 2015-04-20 12:16:57 +03:00 • committed by Anas Nashif
commit 39a6c7df9b
2 changed files with 32 additions and 0 deletions
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10
include/bluetooth/hci.h
View file

@ -81,6 +81,16 @@ struct bt_hci_cp_set_event_mask {
#define BT_HCI_OP_RESET BT_OP(BT_OGF_BASEBAND, 0x0003)
#define BT_HCI_OP_SET_CTL_TO_HOST_FLOW BT_OP(BT_OGF_BASEBAND, 0x0031)
#define BT_HCI_OP_HOST_BUFFER_SIZE BT_OP(BT_OGF_BASEBAND, 0x0033)
struct bt_hci_cp_host_buffer_size {
uint16_t acl_mtu;
uint8_t sco_mtu;
uint16_t acl_pkts;
uint16_t sco_pkts;
} PACK_STRUCT;
#define BT_HCI_OP_LE_WRITE_LE_HOST_SUPP BT_OP(BT_OGF_BASEBAND, 0x006d)
struct bt_hci_cp_write_le_host_supp {
uint8_t le;

22
net/bluetooth/hci_core.c
View file

@ -505,8 +505,10 @@ static void hci_rx_fiber(void)
static int hci_init(void)
{
struct bt_hci_cp_host_buffer_size *hbs;
struct bt_hci_cp_set_event_mask *ev;
struct bt_buf *buf;
uint8_t *enable;
/* Send HCI_RESET */
bt_hci_cmd_send(BT_HCI_OP_RESET, NULL);
@ -554,6 +556,26 @@ static int hci_init(void)
bt_hci_cmd_send_sync(BT_HCI_OP_SET_EVENT_MASK, buf);
buf = bt_hci_cmd_create(BT_HCI_OP_HOST_BUFFER_SIZE, sizeof(*hbs));
if (!buf)
return -ENOBUFS;
hbs = (void *)bt_buf_add(buf, sizeof(*hbs));
memset(hbs, 0, sizeof(*hbs));
hbs->acl_mtu = sys_cpu_to_le16(BT_BUF_MAX_DATA -
sizeof(struct bt_hci_acl_hdr));
hbs->acl_pkts = sys_cpu_to_le16(ACL_IN_MAX);
bt_hci_cmd_send(BT_HCI_OP_HOST_BUFFER_SIZE, buf);
buf = bt_hci_cmd_create(BT_HCI_OP_SET_CTL_TO_HOST_FLOW, 1);
if (!buf)
return -ENOBUFS;
enable = (void *)bt_buf_add(buf, sizeof(*enable));
*enable = 0x01;
bt_hci_cmd_send(BT_HCI_OP_SET_CTL_TO_HOST_FLOW, buf);
if (lmp_bredr_capable(dev)) {
struct bt_hci_cp_write_le_host_supp *cp;