#include <nitro/spi.h>
u32 TP_CheckBusy( TPRequestCommandFlag command_flgs );
command_flgs | Specifies the command on which to perform a busy check. |
Returns 0 if a request is not being executed. Returns a non-zero value if a request is being executed.
Checks to see if a touch panel request that has been transmitted to ARM7 is being executed You can check more than one request simultaneously if you provide the argument with the bitwise OR of multiple flags.
TP_REQUEST_COMMAND_FLAG_SAMPLING |
Requests sampling one time. Send with TP_RequestSampling* . |
TP_REQUEST_COMMAND_FLAG_AUTO_ON |
Requests to start autosampling. Send with TP_RequestAutoSamplingStart . |
TP_REQUEST_COMMAND_FLAG_AUTO_OFF |
Requests to stop autosampling. Send with TP_RequestAutoSamplingStop . |
TP_REQUEST_COMMAND_FLAG_SET_STABILITY |
Requests to set chattering provision parameters. Send with TP_RequestSetStability . |
The following describes the enumerated type definitions of the arguments.
// Type of instruction issued to the touch panel
typedef enum {
TP_REQUEST_COMMAND_FLAG_SAMPLING = 1 << TP_REQUEST_COMMAND_SAMPLING ,
TP_REQUEST_COMMAND_FLAG_AUTO_ON = 1 << TP_REQUEST_COMMAND_AUTO_ON ,
TP_REQUEST_COMMAND_FLAG_AUTO_OFF = 1 << TP_REQUEST_COMMAND_AUTO_OFF ,
TP_REQUEST_COMMAND_FLAG_SET_STABILITY = 1 << TP_REQUEST_COMMAND_SET_STABILITY
} TPRequestCommandFlag;
04/19/2004 Initial version