This allows to enable and disable DUT mode. This is special mode so
adding more info from related kernel commit:
"The Device Under Test (DUT) mode is useful for doing certification
testing and so expose this as debugfs option.
This mode is actually special since you can only enter it. Restoring
normal operation means that a HCI Reset is required. The current mode
value gets tracked as a new device flag and when disabling it, the
correct command to reset the controller is sent."
---
android/bluetooth.c | 29 ++++++++++++++++++++++++++---
1 file changed, 26 insertions(+), 3 deletions(-)
diff --git a/android/bluetooth.c b/android/bluetooth.c
index 2e75864..59f0810 100644
--- a/android/bluetooth.c
+++ b/android/bluetooth.c
@@ -50,6 +50,8 @@
#include "utils.h"
#include "bluetooth.h"
+#define DUT_MODE_FILE "/sys/kernel/debug/bluetooth/hci%u/dut_mode"
+
#define DEVICE_ID_SOURCE 0x0002 /* USB */
#define DEVICE_ID_VENDOR 0x1d6b /* Linux Foundation */
#define DEVICE_ID_PRODUCT 0x0247 /* BlueZ for Android */
@@ -2872,13 +2874,34 @@ failed:
static void handle_dut_mode_conf_cmd(const void *buf, uint16_t len)
{
const struct hal_cmd_dut_mode_conf *cmd = buf;
+ char path[FILENAME_MAX];
+ uint8_t status;
+ int fd, ret;
DBG("enable %u", cmd->enable);
- /* TODO */
+ snprintf(path, sizeof(path), DUT_MODE_FILE, adapter.index);
- ipc_send_rsp(HAL_SERVICE_ID_BLUETOOTH, HAL_OP_DUT_MODE_CONF,
- HAL_STATUS_FAILED);
+ fd = open(path, O_WRONLY);
+ if (fd < 0) {
+ status = HAL_STATUS_FAILED;
+ goto failed;
+ }
+
+ if (cmd->enable)
+ ret = write(fd, "1", sizeof("1"));
+ else
+ ret = write(fd, "0", sizeof("0"));
+
+ if (ret < 0)
+ status = HAL_STATUS_FAILED;
+ else
+ status = HAL_STATUS_SUCCESS;
+
+ close(fd);
+
+failed:
+ ipc_send_rsp(HAL_SERVICE_ID_BLUETOOTH, HAL_OP_DUT_MODE_CONF, status);
}
static void handle_dut_mode_send_cmd(const void *buf, uint16_t len)
--
1.8.3.2
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