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path: root/xorg-server/hw/kdrive/linux/ps2.c
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Diffstat (limited to 'xorg-server/hw/kdrive/linux/ps2.c')
-rw-r--r--xorg-server/hw/kdrive/linux/ps2.c142
1 files changed, 68 insertions, 74 deletions
diff --git a/xorg-server/hw/kdrive/linux/ps2.c b/xorg-server/hw/kdrive/linux/ps2.c
index b62d769f2..d1522a2d0 100644
--- a/xorg-server/hw/kdrive/linux/ps2.c
+++ b/xorg-server/hw/kdrive/linux/ps2.c
@@ -31,36 +31,34 @@
#include "kdrive.h"
static int
-Ps2ReadBytes (int fd, char *buf, int len, int min)
+Ps2ReadBytes(int fd, char *buf, int len, int min)
{
- int n, tot;
- fd_set set;
- struct timeval tv;
+ int n, tot;
+ fd_set set;
+ struct timeval tv;
tot = 0;
- while (len)
- {
- n = read (fd, buf, len);
- if (n > 0)
- {
- tot += n;
- buf += n;
- len -= n;
- }
- if (tot % min == 0)
- break;
- FD_ZERO (&set);
- FD_SET (fd, &set);
- tv.tv_sec = 0;
- tv.tv_usec = 100 * 1000;
- n = select (fd + 1, &set, 0, 0, &tv);
- if (n <= 0)
- break;
+ while (len) {
+ n = read(fd, buf, len);
+ if (n > 0) {
+ tot += n;
+ buf += n;
+ len -= n;
+ }
+ if (tot % min == 0)
+ break;
+ FD_ZERO(&set);
+ FD_SET(fd, &set);
+ tv.tv_sec = 0;
+ tv.tv_usec = 100 * 1000;
+ n = select(fd + 1, &set, 0, 0, &tv);
+ if (n <= 0)
+ break;
}
return tot;
}
-char *Ps2Names[] = {
+char *Ps2Names[] = {
"/dev/psaux",
/* "/dev/mouse", */
"/dev/input/mice",
@@ -69,67 +67,64 @@ char *Ps2Names[] = {
#define NUM_PS2_NAMES (sizeof (Ps2Names) / sizeof (Ps2Names[0]))
static void
-Ps2Read (int ps2Port, void *closure)
+Ps2Read(int ps2Port, void *closure)
{
- unsigned char buf[3 * 200];
- unsigned char *b;
- int n;
- int dx, dy;
- unsigned long flags;
- unsigned long left_button = KD_BUTTON_1;
- unsigned long right_button = KD_BUTTON_3;
+ unsigned char buf[3 * 200];
+ unsigned char *b;
+ int n;
+ int dx, dy;
+ unsigned long flags;
+ unsigned long left_button = KD_BUTTON_1;
+ unsigned long right_button = KD_BUTTON_3;
#undef SWAP_USB
#ifdef SWAP_USB
- if (id == 2)
- {
- left_button = KD_BUTTON_3;
- right_button = KD_BUTTON_1;
+ if (id == 2) {
+ left_button = KD_BUTTON_3;
+ right_button = KD_BUTTON_1;
}
#endif
- while ((n = Ps2ReadBytes (ps2Port, (char *) buf, sizeof (buf), 3)) > 0)
- {
- b = buf;
- while (n >= 3)
- {
- flags = KD_MOUSE_DELTA;
- if (b[0] & 4)
- flags |= KD_BUTTON_2;
- if (b[0] & 2)
- flags |= right_button;
- if (b[0] & 1)
- flags |= left_button;
-
- dx = b[1];
- if (b[0] & 0x10)
- dx -= 256;
- dy = b[2];
- if (b[0] & 0x20)
- dy -= 256;
- dy = -dy;
- n -= 3;
- b += 3;
- KdEnqueuePointerEvent (closure, flags, dx, dy, 0);
- }
+ while ((n = Ps2ReadBytes(ps2Port, (char *) buf, sizeof(buf), 3)) > 0) {
+ b = buf;
+ while (n >= 3) {
+ flags = KD_MOUSE_DELTA;
+ if (b[0] & 4)
+ flags |= KD_BUTTON_2;
+ if (b[0] & 2)
+ flags |= right_button;
+ if (b[0] & 1)
+ flags |= left_button;
+
+ dx = b[1];
+ if (b[0] & 0x10)
+ dx -= 256;
+ dy = b[2];
+ if (b[0] & 0x20)
+ dy -= 256;
+ dy = -dy;
+ n -= 3;
+ b += 3;
+ KdEnqueuePointerEvent(closure, flags, dx, dy, 0);
+ }
}
}
static Status
-Ps2Init (KdPointerInfo *pi)
+Ps2Init(KdPointerInfo * pi)
{
- int ps2Port, i;
+ int ps2Port, i;
if (!pi->path) {
for (i = 0; i < NUM_PS2_NAMES; i++) {
- ps2Port = open (Ps2Names[i], 0);
+ ps2Port = open(Ps2Names[i], 0);
if (ps2Port >= 0) {
- pi->path = strdup (Ps2Names[i]);
+ pi->path = strdup(Ps2Names[i]);
break;
}
- }
+ }
}
else {
- ps2Port = open (pi->path, 0);
+ ps2Port = open(pi->path, 0);
}
if (ps2Port < 0)
@@ -137,42 +132,41 @@ Ps2Init (KdPointerInfo *pi)
close(ps2Port);
if (!pi->name)
- pi->name = strdup ("PS/2 Mouse");
+ pi->name = strdup("PS/2 Mouse");
return Success;
}
static Status
-Ps2Enable (KdPointerInfo *pi)
+Ps2Enable(KdPointerInfo * pi)
{
int fd;
if (!pi)
return BadImplementation;
- fd = open (pi->path, 0);
+ fd = open(pi->path, 0);
if (fd < 0)
return BadMatch;
- if (!KdRegisterFd (fd, Ps2Read, pi)) {
+ if (!KdRegisterFd(fd, Ps2Read, pi)) {
close(fd);
return BadAlloc;
}
- pi->driverPrivate = (void *)(intptr_t)fd;
+ pi->driverPrivate = (void *) (intptr_t) fd;
return Success;
}
-
static void
-Ps2Disable (KdPointerInfo *pi)
+Ps2Disable(KdPointerInfo * pi)
{
- KdUnregisterFd (pi, (int)(intptr_t)pi->driverPrivate, TRUE);
+ KdUnregisterFd(pi, (int) (intptr_t) pi->driverPrivate, TRUE);
}
static void
-Ps2Fini (KdPointerInfo *pi)
+Ps2Fini(KdPointerInfo * pi)
{
}