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Merge pull request #2 from michaelb/pendragon

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HID -- Interrupt integration
This commit is contained in:
larry
2019-10-02 17:10:16 +01:00
committed by GitHub Enterprise
parent b68c192ad9 211a49f26f
commit 22323daa5f
2 changed files with 34 additions and 51 deletions
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29
lib_xua/src/core/user/user_hid.h
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@@ -11,5 +11,32 @@
#define HID_DATA_SIZE 1 #define HID_DATA_SIZE 1
void UserReadHIDData(unsigned char hidData[HID_DATA_SIZE]); #ifndef HID_SIMULATE_INTERRUPTS
#define HID_SIMULATE_INTERRUPTS 0
#endif
#ifndef INTERRUPT_ASSERT_LEVEL
#define INTERRUPT_ASSERT_LEVEL 0
#endif
#if( 0 < HID_CONTROLS )
#if( 0 < INTERRUPT_ASSERT_LEVEL )
#define INT_ASSERT_LEVEL 1
#define INT_DEASSERT_LEVEL 0
#else
#define INT_ASSERT_LEVEL 0
#define INT_DEASSERT_LEVEL 1
#endif
#if( 0 < HID_SIMULATE_INTERRUPTS )
#define HID_DEASSERT_COUNT 10000
#define HID_INTERRUPT_COUNT 1000000000
#endif
select UserHIDTrigger( unsigned* hidValueLatched );
void UserInitHIDData( void );
void UserReadHIDData( unsigned char hidData[ HID_DATA_SIZE ]);
void UserSetHIDData( const unsigned hidData );
#endif /* ( 0 < HID_CONTROLS ) */

44
lib_xua/src/core/user/user_hid.xc
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@@ -1,44 +0,0 @@
// Copyright (c) 2019, XMOS Ltd, All rights reserved
#include <stdint.h>
#include <limits.h>
#include <xs1.h>
#include "user_hid.h"
#define HID_DEASSERT_COUNT 10000000
#define HID_INTERRUPT_COUNT 1000000000
#define HID_REPORT_DATA 0x01
static unsigned char initialised = 0;
static unsigned int curr_time = 0;
static unsigned int last_time = 0;
static unsigned int tick_count = 0;
void UserReadHIDData( unsigned char hidData[ HID_DATA_SIZE ])
{
timer tmr;
if( !initialised ) {
tmr :> last_time;
initialised = 1;
} else {
tmr :> curr_time;
tick_count += ( last_time < curr_time ) ? curr_time - last_time : curr_time + ( UINT_MAX - last_time );
if(( HID_INTERRUPT_COUNT <= tick_count ) && ( tick_count <= ( HID_INTERRUPT_COUNT + HID_DEASSERT_COUNT ))) {
for( unsigned idx = 0; idx < HID_DATA_SIZE; ++idx ) {
hidData[ idx ] = HID_REPORT_DATA;
}
} else {
for( unsigned idx = 0; idx < HID_DATA_SIZE; ++idx ) {
hidData[ idx ] = 0x00;
}
if (( HID_INTERRUPT_COUNT + HID_DEASSERT_COUNT ) <= tick_count ) {
tick_count = 0;
}
}
last_time = curr_time;
}
}