static int qca_setup(struct hci_uart *hu)
{
struct hci_dev *hdev = hu->hdev;
struct qca_data *qca = hu->priv;
unsigned int speed, qca_baudrate = QCA_BAUDRATE_115200;
int ret;
BT_INFO("%s: ROME setup", hdev->name);
/* Patch downloading has to be done without IBS mode */
clear_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
/* Setup initial baudrate */
speed = 0;
if (hu->init_speed)
speed = hu->init_speed;
else if (hu->proto->init_speed)
speed = hu->proto->init_speed;
if (speed)
hci_uart_set_baudrate(hu, speed);
/* Setup user speed if needed */
speed = 0;
if (hu->oper_speed)
speed = hu->oper_speed;
else if (hu->proto->oper_speed)
speed = hu->proto->oper_speed;
if (speed) {
qca_baudrate = qca_get_baudrate_value(speed);
BT_INFO("%s: Set UART speed to %d", hdev->name, speed);
ret = qca_set_baudrate(hdev, qca_baudrate);
if (ret) {
BT_ERR("%s: Failed to change the baud rate (%d)",
hdev->name, ret);
return ret;
}
hci_uart_set_baudrate(hu, speed);
}
/* Setup patch / NVM configurations */
ret = qca_uart_setup_rome(hdev, qca_baudrate);
if (!ret) {
set_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
qca_debugfs_init(hdev);
}
/* Setup bdaddr */
hu->hdev->set_bdaddr = qca_set_bdaddr_rome;
return ret;
}
static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
{
unsigned int speed, qca_baudrate;
struct qca_serdev *qcadev;
int ret = 0;
if (speed_type == QCA_INIT_SPEED) {
speed = qca_get_speed(hu, QCA_INIT_SPEED);
if (speed)
host_set_baudrate(hu, speed);
} else {
speed = qca_get_speed(hu, QCA_OPER_SPEED);
if (!speed)
return 0;
/* Disable flow control for wcn3990 to deassert RTS while
* changing the baudrate of chip and host.
*/
qcadev = serdev_device_get_drvdata(hu->serdev);
if (qcadev->btsoc_type == QCA_WCN3990)
hci_uart_set_flow_control(hu, true);
qca_baudrate = qca_get_baudrate_value(speed);
bt_dev_dbg(hu->hdev, "Set UART speed to %d", speed);
ret = qca_set_baudrate(hu->hdev, qca_baudrate);
if (ret)
goto error;
host_set_baudrate(hu, speed);
error:
if (qcadev->btsoc_type == QCA_WCN3990)
hci_uart_set_flow_control(hu, false);
}
return ret;
}
static int qca_setup(struct hci_uart *hu)
{
struct hci_dev *hdev = hu->hdev;
struct qca_data *qca = hu->priv;
unsigned int speed, qca_baudrate = QCA_BAUDRATE_115200;
struct qca_serdev *qcadev;
int ret;
int soc_ver = 0;
qcadev = serdev_device_get_drvdata(hu->serdev);
ret = qca_check_speeds(hu);
if (ret)
return ret;
/* Patch downloading has to be done without IBS mode */
clear_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
if (qcadev->btsoc_type == QCA_WCN3990) {
bt_dev_info(hdev, "setting up wcn3990");
/* Enable NON_PERSISTENT_SETUP QUIRK to ensure to execute
* setup for every hci up.
*/
set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
hu->hdev->shutdown = qca_power_off;
ret = qca_wcn3990_init(hu);
if (ret)
return ret;
ret = qca_read_soc_version(hdev, &soc_ver);
if (ret)
return ret;
} else {
bt_dev_info(hdev, "ROME setup");
qca_set_speed(hu, QCA_INIT_SPEED);
}
/* Setup user speed if needed */
speed = qca_get_speed(hu, QCA_OPER_SPEED);
if (speed) {
ret = qca_set_speed(hu, QCA_OPER_SPEED);
if (ret)
return ret;
qca_baudrate = qca_get_baudrate_value(speed);
}
if (qcadev->btsoc_type != QCA_WCN3990) {
/* Get QCA version information */
ret = qca_read_soc_version(hdev, &soc_ver);
if (ret)
return ret;
}
bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver);
/* Setup patch / NVM configurations */
ret = qca_uart_setup(hdev, qca_baudrate, qcadev->btsoc_type, soc_ver);
if (!ret) {
set_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
qca_debugfs_init(hdev);
} else if (ret == -ENOENT) {
/* No patch/nvm-config found, run with original fw/config */
ret = 0;
} else if (ret == -EAGAIN) {
/*
* Userspace firmware loader will return -EAGAIN in case no
* patch/nvm-config is found, so run with original fw/config.
*/
ret = 0;
}
/* Setup bdaddr */
if (qcadev->btsoc_type == QCA_WCN3990)
hu->hdev->set_bdaddr = qca_set_bdaddr;
else
hu->hdev->set_bdaddr = qca_set_bdaddr_rome;
return ret;
}