Interface system for an accessory and communication device
A configurable interface system ( 100 ) couples an accessory ( 102 ) to a communication device ( 104 ). The interface system utilizes a memory device ( 120 ) embedded in the accessory ( 102 ) that stores physical configuration and event mapping descriptors ( 114, 122 ) pertaining to the accessory. The communication device ( 104 ) reads the physical configuration and event mapping descriptors and configures its external interface ( 112 ) in response thereto, preferably through the use of bi-directional GPIO lines ( 110 ).
1. A radio architecture for interfacing with an accessory, the radio architecture including:
an accessory interface manager for receiving event mapping descriptors and physical configuration descriptors from the accessory;
an accessory interface driver coupled to the accessory interface manager.
2. The radio architecture of claim 1 , wherein the physical configuration descriptors contain data direction and logic sense.
3. The radio architecture of claim 1 , wherein the event mapping descriptors contain event identifier, control type, and GPIO number.
4. The radio architecture as described in claim 3 , wherein the event identifier specifies an event code in the radio which is an indication event.
5. The radio architecture as described in claim 4 , wherein the event identifier specifies an event code in the radio which is a user input event.
6. The interface system as described in claim 5 , wherein the indication events and user input events are subdivided into logical and physical events yielding: physical input event, logical input event, physical output event, and logical output event.
7. The radio architecture of claim 6 , wherein the physical input event is assigned to a single GPIO pin configured as an input thereby providing an external means to activate a physical radio button.
8. The radio architecture of claim 6 , wherein the physical output event is created when a logical event, created by an ergonomic manager and application field, is sent to a user interface task which then translates a logical indicator into a physical indicator using a translation table.
9. The radio architecture as described in claim 1 , wherein at least two logical events are set up in the event mapping descriptor using an OR relationship.
10. The radio architecture as described in claim 1 , wherein at least two logical events are set up in the event mapping descriptor using an AND relationship.
11. The radio architecture as described in claim 1 , wherein at least two physical events are set up in the event mapping descriptor using an OR relationship.
12. The radio architecture as described in claim 1 , wherein at least two physical events are set up in the event mapping descriptor using an AND relationship.
13. The radio architecture system of claim 1 , wherein the physical configuration descriptors are encrypted.
14. The radio architecture system of claim 1 , wherein the physical configuration descriptors are digitally signed.
15. The radio architecture system of claim 1 , wherein the event mapping descriptors are encrypted.
16. The radio architecture system of claim 1 , wherein the event mapping descriptors are digitally signed.
17. The radio architecture of claim 1 , wherein for physical events, the accessory interface manager sends physical event mapping descriptors to a user input manager, and for output events, the accessory interface manager monitors outputs from a low level display/indicator manager and activates/deactivates display and indicator drivers.