arch/.unmaintained/m68k-pp-native/Drivers/touchscreen.hidd/touchscreen_interrupt.c

   1 #include "touchscreen.h"
   2 #include <exec/types.h>
   3 #include <exec/semaphores.h>
   4 #include <exec/interrupts.h>
   5 #include <exec/execbase.h>
   6 #include <asm/registers.h>
   7 #include <aros/libcall.h>
   8 #include <aros/asmcall.h>
   9
  10 #define DEBUG 0
  11 #include <aros/debug.h>
  12
  13 #undef SysBase
  14 /*
  15  * Interrupt handler for the touchscreen
  16  */
  17 void touchscreen_int(HIDDT_IRQ_Handler * irq, HIDDT_IRQ_HwInfo *hw)
  18 {
  19         struct ExecBase * SysBase =     *(struct ExecBase **)0x04;
  20         struct mouse_data               *data =(struct mouse_data *)irq->h_Data;
  21         struct pHidd_Mouse_Event        *e = &data->me;
  22         /*
  23          * Try to read the coordinates
  24          */
  25         WREG_B(PFDATA)   = (RREG_B(PFDATA) & 0xf0) | 0x06;
  26         WREG_W(SPICONT2) = (SPI_ENABLE_F|SPI_XCH_F|SPI_IRQEN_F);
  27
  28         e->x = RREG_W(SPIDATA2);
  29
  30         WREG_B(PFDATA)   = (RREG_B(PFDATA) & 0xf0) | 0x09;
  31         WREG_W(SPICONT2) = (SPI_ENABLE_F|SPI_XCH_F|SPI_IRQEN_F);
  32
  33         e->y = RREG_W(SPIDATA2);
  34
  35         e->x = -(e->x/2-0xff);
  36         e->y = -(e->y/2-0xff);
  37
  38         if (STATE_IDLE == data->state) {
  39                 e->button = vHidd_Mouse_NoButton;
  40                 e->type   = vHidd_Mouse_Motion;
  41                 D(bug("---------------- Motion! callback=%p\n",data->mouse_callback));
  42                 data->mouse_callback(data->callbackdata, e);
  43
  44                 e->button = vHidd_Mouse_Button1;
  45                 e->type   = vHidd_Mouse_Press;
  46                 D(bug("------------- Press!\n"));
  47                 data->mouse_callback(data->callbackdata, e);
  48         } else {
  49                 if ((e->x != data->lastx) &&
  50                     (e->y != data->lasty)) {
  51                         e->button = vHidd_Mouse_Button1;
  52                         e->type   = vHidd_Mouse_Motion;
  53                         D(bug("---------------- Motion! callback=%p\n",data->mouse_callback));
  54                         data->mouse_callback(data->callbackdata, e);
  55                 }
  56         }
  57
  58         data->lastx = e->x;
  59         data->lasty = e->y;
  60         data->state = STATE_PEN_DOWN;
  61
  62
  63         data->idlectr = 0;
  64 }
  65
  66
  67 AROS_UFH4(ULONG, tsVBlank,
  68      AROS_UFHA(ULONG, dummy, A0),
  69      AROS_UFHA(void *, _data, A1),
  70      AROS_UFHA(ULONG, dummy2, A5),
  71      AROS_UFHA(struct ExecBase *, SysBase, A6))
  72 {
  73         AROS_USERFUNC_INIT
  74         struct mouse_data *data =(struct mouse_data *)_data;
  75         if (STATE_PEN_DOWN == data->state) {
  76                 data->idlectr++;
  77                 if (2 == data->idlectr) {
  78                         struct pHidd_Mouse_Event  *e = &data->me;
  79                         e->x = 0;
  80                         e->y = 0;
  81                         e->button = vHidd_Mouse_Button1;
  82                         e->type   = vHidd_Mouse_Release;
  83                         data->mouse_callback(data->callbackdata, e);
  84                         data->state = STATE_IDLE;
  85                 }
  86         }
  87         return 0;
  88         AROS_USERFUNC_EXIT
  89 }