diff options
Diffstat (limited to 'o3000.c')
| -rw-r--r-- | o3000.c | 51 |
1 files changed, 36 insertions, 15 deletions
@@ -885,38 +885,59 @@ static int get_num_open_sessions(void) { } /** - * Do firmware update of the device + * Do firmware upgrade of connected camera device. * - * @param data pointer to firmware update data + * Make sure, that all O-3000 sessions are closed before calling this + * function. Further, only one camera must be connected to the host system. + * Otherwise the update process will fail. + * + * @param data pointer to firmware update data binary * @param data_len firmware update data lenght in bytes * @return 0 on success, error code on failure defined at @ref o3000.h. */ -int __stdcall o3000_firmware_update(unsigned char *data, int data_len) { +int __stdcall o3000_firmware_upgrade(unsigned char *data, int data_len) { - int ret = 0, num_sessions; + int ret , num_sessions, num_cam; // paranoia checks if(data == NULL) { - ret = O3000_ERROR_NOT_VALID_ARGUMENT; - printf("%s: Data pointer is NULL. error code: %d.\n", __func__, ret); - return ret; + printf("%s: Firmware binary not defined!\n", __func__); + return O3000_ERROR_NOT_VALID_ARGUMENT; } if(data_len <= 0) { - ret = O3000_ERROR_NOT_VALID_ARGUMENT; - printf("%s: Length of data is negative. error code: %d.\n", __func__, ret); - return ret; + printf("%s: Invalid firmware binary length of %d bytes!\n", __func__, data_len); + return O3000_ERROR_NOT_VALID_ARGUMENT; } - // checking whether all connections are closed + // checking whether all camera sessions are closed num_sessions = get_num_open_sessions(); if (num_sessions > 0) { - ret = O3000_ERROR_SESSION_STILL_OPEN; - printf("%s: Cannot proceed to firmware update: error code: %d.\n", __func__, ret); - return ret; + printf("%s: There're still %d camera session(s) opened. Close all session to perform firmware upgrade.\n", __func__, num_sessions); + return O3000_ERROR_SESSION_STILL_OPEN; } - ret = firmware_update(data, data_len); + // checking whether only one camera is connected to the system + num_cam = o3000_get_num_cam(); + if(num_cam < 0) { + // forward error + printf("%s: Getting number of connected cameras failed with error code %d\n", __func__, num_cam); + return num_cam; + } + if(num_cam == 0) { + // no camera connected to the system + printf("%s: No camera connected to the host system.\n", __func__); + return O3000_ERROR_NODEV; + } + if(num_cam > 1) { + printf("%s: %d cameras connected to the host system. Make sure only one camera is connected.\n", __func__, num_cam); + return O3000_ERROR_OTHER; + } + // At this point only one camera is connected and all sessions are closed. Perform upgrade now. + ret = firmware_upgrade(data, data_len); + if(ret != 0) { + printf("%s: Firmware upgrade failed with error code %d.\n", __func__, ret); + } return ret; } |