kdrive: work around ipaq touch screen compile problems
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@ -33,15 +33,57 @@
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#include "kdrive.h"
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#include "Xpoll.h"
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#include <sys/ioctl.h>
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#if 1
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#include <linux/h3600_ts.h> /* touch screen events */
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#else
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/* inline for non-arm debug builds */
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typedef struct {
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unsigned short pressure;
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unsigned short x;
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unsigned short y;
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unsigned short pad; /* TODO TODO word boundary pad */
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} TS_EVENT;
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#endif
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static long lastx = 0, lasty = 0;
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int TsScreen;
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extern int TsFbdev;
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int
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TsReadBytes (int fd, char *buf, int len, int min)
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{
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int n, tot;
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fd_set set;
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struct timeval tv;
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tot = 0;
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while (len)
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{
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n = read (fd, buf, len);
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if (n > 0)
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{
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tot += n;
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buf += n;
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len -= n;
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}
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if (tot % min == 0)
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break;
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FD_ZERO (&set);
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FD_SET (fd, &set);
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tv.tv_sec = 0;
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tv.tv_usec = 100 * 1000;
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n = select (fd + 1, &set, 0, 0, &tv);
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if (n <= 0)
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break;
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}
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return tot;
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}
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void
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TsRead (int tsPort, void *closure)
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{
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KdMouseInfo *mi = closure;
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int fd = (int) mi->driver;
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TS_EVENT event;
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long buf[3];
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int n;
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@ -50,8 +92,7 @@ TsRead (int tsPort, void *closure)
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unsigned long flags;
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unsigned long buttons;
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n = Ps2ReadBytes (tsPort, (char *) &event,
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sizeof (event), sizeof (event));
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n = TsReadBytes (tsPort, (char *) &event, sizeof (event), sizeof (event));
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if (n == sizeof (event))
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{
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if (event.pressure)
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@ -85,7 +126,7 @@ TsRead (int tsPort, void *closure)
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lastx = 0;
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lasty = 0;
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}
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KdEnqueueMouseEvent (flags, x, y);
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KdEnqueueMouseEvent (mi, flags, x, y);
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}
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}
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@ -102,22 +143,40 @@ int TsInputType;
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int
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TsInit (void)
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{
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int i;
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int TsPort;
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int i;
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int fd;
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KdMouseInfo *mi, *next;
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int n = 0;
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if (!TsInputType)
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TsInputType = KdAllocInputType ();
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for (i = 0; i < NUM_TS_NAMES; i++)
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for (mi = kdMouseInfo; mi; mi = next)
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{
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TsPort = open (TsNames[i], 0);
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if (TsPort >= 0)
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next = mi->next;
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if (!mi->name)
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{
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if (KdRegisterFd (TsInputType, TsPort, TsRead, 0))
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return 1;
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for (i = 0; i < NUM_TS_NAMES; i++)
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{
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fd = open (TsNames[i], 0);
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if (fd >= 0)
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{
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mi->name = KdSaveString (TsNames[i]);
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break;
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}
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}
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}
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else
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fd = open (mi->name, 0);
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if (fd >= 0)
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{
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mi->driver = (void *) fd;
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if (KdRegisterFd (TsInputType, fd, TsRead, (void *) mi))
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n++;
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}
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else
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KdMouseInfoDispose (mi);
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}
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perror("Touch screen not found.\n");
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exit (1);
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}
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void
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