mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 16:29:59 +00:00
Bluetooth: hci_uart: Support operational speed during setup
Add initial and operational speeds. Change to operational speed as soon as possible. If controller set_baudrate() fails, continue at initial speed. Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
parent
a8f3b9418a
commit
7721383f41
2 changed files with 30 additions and 0 deletions
|
@ -266,11 +266,37 @@ static int hci_uart_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
|
|||
return 0;
|
||||
}
|
||||
|
||||
void hci_uart_set_baudrate(struct hci_uart *hu, unsigned int speed)
|
||||
{
|
||||
struct tty_struct *tty = hu->tty;
|
||||
struct ktermios ktermios;
|
||||
|
||||
ktermios = tty->termios;
|
||||
ktermios.c_cflag &= ~CBAUD;
|
||||
ktermios.c_cflag |= BOTHER;
|
||||
tty_termios_encode_baud_rate(&ktermios, speed, speed);
|
||||
|
||||
/* tty_set_termios() return not checked as it is always 0 */
|
||||
tty_set_termios(tty, &ktermios);
|
||||
|
||||
BT_DBG("%s: New tty speed: %d", hu->hdev->name, tty->termios.c_ispeed);
|
||||
}
|
||||
|
||||
static int hci_uart_setup(struct hci_dev *hdev)
|
||||
{
|
||||
struct hci_uart *hu = hci_get_drvdata(hdev);
|
||||
struct hci_rp_read_local_version *ver;
|
||||
struct sk_buff *skb;
|
||||
int err;
|
||||
|
||||
if (hu->proto->init_speed)
|
||||
hci_uart_set_baudrate(hu, hu->proto->init_speed);
|
||||
|
||||
if (hu->proto->set_baudrate && hu->proto->oper_speed) {
|
||||
err = hu->proto->set_baudrate(hu, hu->proto->oper_speed);
|
||||
if (!err)
|
||||
hci_uart_set_baudrate(hu, hu->proto->oper_speed);
|
||||
}
|
||||
|
||||
if (hu->proto->setup)
|
||||
return hu->proto->setup(hu);
|
||||
|
|
|
@ -58,10 +58,13 @@ struct hci_uart;
|
|||
struct hci_uart_proto {
|
||||
unsigned int id;
|
||||
const char *name;
|
||||
unsigned int init_speed;
|
||||
unsigned int oper_speed;
|
||||
int (*open)(struct hci_uart *hu);
|
||||
int (*close)(struct hci_uart *hu);
|
||||
int (*flush)(struct hci_uart *hu);
|
||||
int (*setup)(struct hci_uart *hu);
|
||||
int (*set_baudrate)(struct hci_uart *hu, unsigned int speed);
|
||||
int (*recv)(struct hci_uart *hu, const void *data, int len);
|
||||
int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);
|
||||
struct sk_buff *(*dequeue)(struct hci_uart *hu);
|
||||
|
@ -96,6 +99,7 @@ int hci_uart_register_proto(const struct hci_uart_proto *p);
|
|||
int hci_uart_unregister_proto(const struct hci_uart_proto *p);
|
||||
int hci_uart_tx_wakeup(struct hci_uart *hu);
|
||||
int hci_uart_init_ready(struct hci_uart *hu);
|
||||
void hci_uart_set_baudrate(struct hci_uart *hu, unsigned int speed);
|
||||
|
||||
#ifdef CONFIG_BT_HCIUART_H4
|
||||
int h4_init(void);
|
||||
|
|
Loading…
Reference in a new issue