Initial submission of the PCem-Experimental source code.
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72
src/mouse_serial.c
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72
src/mouse_serial.c
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#include "ibm.h"
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#include "mouse.h"
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#include "pic.h"
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#include "serial.h"
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#include "timer.h"
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static int oldb=0;
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void mouse_serial_poll(int x, int y, int b)
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{
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uint8_t mousedat[3];
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if (!(serial1.ier & 1))
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return;
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if (!x && !y && b==oldb) return;
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oldb=b;
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if (x>127) x=127;
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if (y>127) y=127;
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if (x<-128) x=-128;
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if (y<-128) y=-128;
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/*Use Microsoft format*/
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mousedat[0]=0x40;
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mousedat[0]|=(((y>>6)&3)<<2);
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mousedat[0]|=((x>>6)&3);
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if (b&1) mousedat[0]|=0x20;
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if (b&2) mousedat[0]|=0x10;
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mousedat[1]=x&0x3F;
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mousedat[2]=y&0x3F;
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if (!(serial1.mctrl&0x10))
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{
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pclog("Serial data %02X %02X %02X\n", mousedat[0], mousedat[1], mousedat[2]);
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serial_write_fifo(&serial1, mousedat[0]);
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serial_write_fifo(&serial1, mousedat[1]);
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serial_write_fifo(&serial1, mousedat[2]);
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}
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}
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void mouse_serial_rcr(void *p)
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{
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mousepos=-1;
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mousedelay=5000 * (1 << TIMER_SHIFT);
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}
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void mousecallback(void *p)
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{
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SERIAL *serial = (SERIAL *)p;
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mousedelay = 0;
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if (mousepos == -1)
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{
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mousepos = 0;
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/* serial_fifo_read = serial_fifo_write = 0;
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serial.lsr &= ~1;*/
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serial_write_fifo(serial, 'M');
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}
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/* else if (serial_fifo_read != serial_fifo_write)
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{
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serial.iir=4;
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serial.lsr|=1;
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if (serial.mctrl&8) picint(0x10);
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}*/
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}
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void mouse_serial_init()
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{
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mouse_poll = mouse_serial_poll;
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serial1.rcr_callback = mouse_serial_rcr;
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timer_add(mousecallback, &mousedelay, &mousedelay, &serial1);
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}
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