From: Jeremy Cline <jeremy@xxxxxxxxxx>
Implement support for the RTL8723BS chip.
Signed-off-by: Jeremy Cline <jeremy@xxxxxxxxxx>
[hdegoede@xxxxxxxxxx: Port from bt3wire.c to hci_h5.c, drop broken GPIO code]
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/bluetooth/hci_h5.c | 69 ++++++++++++++++++++++++++++++++++++++
1 file changed, 69 insertions(+)
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
index b3f762291e7f..3513dad43f3c 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -31,6 +31,7 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
+#include "btrtl.h"
#include "hci_uart.h"
#define HCI_3WIRE_ACK_PKT 0
@@ -822,11 +823,79 @@ static void h5_serdev_remove(struct serdev_device *serdev)
hci_uart_unregister_device(&h5->serdev_hu);
}
+static int h5_btrtl_setup(struct h5 *h5)
+{
+ struct btrtl_device_info *btrtl_dev;
+ struct sk_buff *skb;
+ __le32 baudrate_data;
+ u32 device_baudrate;
+ unsigned int controller_baudrate;
+ bool flow_control;
+ int err;
+
+ btrtl_dev = btrtl_initialize(h5->hu->hdev, h5->id);
+ if (IS_ERR(btrtl_dev))
+ return PTR_ERR(btrtl_dev);
+
+ err = btrtl_get_uart_settings(h5->hu->hdev, btrtl_dev,
+ &controller_baudrate, &device_baudrate,
+ &flow_control);
+ if (err)
+ goto out_free;
+
+ baudrate_data = cpu_to_le32(device_baudrate);
+ skb = __hci_cmd_sync(h5->hu->hdev, 0xfc17, sizeof(baudrate_data),
+ &baudrate_data, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ rtl_dev_err(h5->hu->hdev, "set baud rate command failed\n");
+ err = PTR_ERR(skb);
+ goto out_free;
+ } else {
+ kfree_skb(skb);
+ }
+ /* Give the device some time to set up the new baudrate. */
+ usleep_range(10000, 20000);
+
+ serdev_device_set_baudrate(h5->hu->serdev, controller_baudrate);
+ serdev_device_set_flow_control(h5->hu->serdev, flow_control);
+
+ err = btrtl_download_firmware(h5->hu->hdev, btrtl_dev);
+ /* Give the device some time before the hci-core sends it a reset */
+ usleep_range(10000, 20000);
+
+out_free:
+ btrtl_free(btrtl_dev);
+
+ return err;
+}
+
+static void h5_btrtl_open(struct h5 *h5)
+{
+ /* Devices always start with these fixed parameters */
+ serdev_device_set_flow_control(h5->hu->serdev, false);
+ serdev_device_set_parity(h5->hu->serdev, SERDEV_PARITY_EVEN);
+ serdev_device_set_baudrate(h5->hu->serdev, 115200);
+}
+
+static struct h5_vnd rtl_vnd = {
+ .setup = h5_btrtl_setup,
+ .open = h5_btrtl_open,
+};
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id h5_acpi_match[] = {
+ { "OBDA8723", (kernel_ulong_t)&rtl_vnd },
+ { },
+};
+MODULE_DEVICE_TABLE(acpi, h5_acpi_match);
+#endif
+
static struct serdev_device_driver h5_serdev_driver = {
.probe = h5_serdev_probe,
.remove = h5_serdev_remove,
.driver = {
.name = "hci_uart_h5",
+ .acpi_match_table = ACPI_PTR(h5_acpi_match),
},
};
--
2.18.0
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