Near field communication (NFC) enhanced computing systems
Technologies are disclosed herein for utilizing near field communication (“NFC”) to improve the security, performance, and configuration of computing systems. In particular, NFC can be utilized to power an NFC-equipped server computer on or off, to log directly into an operating system executing on the NFC-equipped server computer, to stream firmware debugging data from an NFC-equipped server computer to an NFC-equipped mobile device, to initiate the update or recovery of firmware, to provide hardware inventory data, or to pair hardware devices. Firmware debugging data can also be streamed from a firmware to an NFC-equipped mobile device. NFC can also be utilized to disable functionality provided by a mobile device while the device is in motion, such as when a user of the mobile device is operating a motor vehicle.
1. A computer-implemented method for powering on a near-field communications (NFC)-equipped server computer utilizing NFC, the method comprising:
reading user credentials at the NFC-equipped server computer from an NFC card or an NFC-equipped mobile device via an NFC reader powered on by a direct-current (DC) power supply device;
providing the user credentials from the NFC reader to an embedded controller (EC) operating in the NFC-equipped server computer, the EC powered on by the DC power supply device and the NFC-equipped server computer having defined components powered off;
determining, by way of the EC, whether the user credentials indicate a right to power on the NFC-equipped server computer; and
responsive to determining that the user credentials indicate the right to power on the NFC-equipped server computer, providing a power-on signal from the EC to a power controller operating in the NFC-equipped server computer, the power-on signal causing the DC power supply device to power on the defined components of the NFC-equipped server computer.
2. The computer-implemented method of claim 1 , wherein the EC comprises a non-volatile memory and wherein determining whether the user credentials indicate the right to power on the NFC-equipped server computer comprises comparing the user credentials read via the NFC reader to user credentials previously stored in the non-volatile memory.
3. The computer-implemented method of claim 2 , wherein the user credentials previously stored in the non-volatile memory are defined by way of a setup program provided by the EC.
4. The computer-implemented method of claim 2 , wherein the user credentials previously stored in the non-volatile memory are defined by way of a setup program provided by a firmware operating in the NFC-equipped server computer.
5. A server computer, comprising:
a near-field communications (NFC) reader powered on by a direct-current (DC) power supply device;
a power controller; and
an embedded controller (EC) coupled to the NFC reader and powered on by the DC power supply device, the EC configured to:
receive user credentials from the NFC reader;
determine whether the user credentials indicate a right to power on the server computer, the server computer operating in a mode having defined components powered off; and
responsive to determining that the user credentials indicate the right to power on the server computer, provide a power-on signal to the power controller;
wherein the power controller causes the DC power supply device to power on the defined components in response to receiving the power-on signal.
6. The server computer of claim 5 , wherein the EC comprises a non-volatile memory, and wherein to determine whether the user credentials indicate the right to power on the NFC-equipped server computer, the EC is further configured to compare the user credentials received from the NFC reader to user credentials previously stored in the non-volatile memory.
7. The server computer of claim 6 , wherein the user credentials previously stored in the non-volatile memory are defined by way of a setup program provided by the EC.
8. The server computer of claim 6 , wherein the server computer further comprises a firmware, and wherein the user credentials previously stored in the non-volatile memory are defined by way of a setup program provided by the firmware.
9. A non-transitory computer-readable storage medium having instructions stored thereupon which, when executed by a processor, cause the processor to:
read user credentials at a near-field communications (NFC-equipped server computer from an NFC card or an NFC-equipped mobile device via an NFC reader powered on by a direct-current (DC) power supply device;
provide the user credentials from the NFC reader to an embedded controller (EC) operating in the NFC-equipped server computer, the EC powered on by the DC power supply device and the NFC-equipped server computer having defined components powered off;
determine, by way of the EC, whether the user credentials indicate a right to power on the NFC-equipped server computer; and
responsive to determining that the user credentials indicate the right to power on the NFC-equipped server computer, provide a power-on signal from the EC to a power controller operating in the NFC-equipped server computer, the power-on signal causes the DC power supply device to power on the defined components.
10. The non-transitory computer-readable storage medium of claim 9 , wherein the EC comprises a non-volatile memory, and wherein to determine whether the user credentials indicate the right to power on the NFC-equipped server computer, the instructions, when executed by the processor, cause the processor to compare the user credentials read via the NFC reader to user credentials previously stored in the non-volatile memory.
11. The non-transitory computer-readable storage medium of claim 10 , wherein the user credentials previously stored in the non-volatile memory are defined by way of a setup program provided by the EC.
12. The non-transitory computer-readable storage medium of claim 10 , wherein the user credentials previously stored in the non-volatile memory are defined by way of a setup program provided by a firmware operating in the NFC-equipped server computer.