- Reorganized a `if-else' close a bit for clarity. Purely cosmetic
change. No functional difference.
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@ -1870,7 +1870,7 @@ pnpwakeup1(void)
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* The PnP COM device spec. dictates that the mouse must set DSR
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* in response to DTR (by hardware or by software) and that if DSR is
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* not asserted, the host computer should think that there is no device
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* at this serial port. But there are some mice just don't do that...
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* at this serial port. But some mice just don't do that...
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*/
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ioctl(rodent.mfd, TIOCMGET, &i);
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debug("modem status 0%o", i);
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@ -1900,29 +1900,29 @@ pnpwakeup1(void)
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if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) {
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debug("pnpwakeup1(): valid response in first phase.");
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return TRUE;
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} else {
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/* port setup, 2nd phase (2.1.5) */
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i = TIOCM_DTR | TIOCM_RTS; /* DTR = 0, RTS = 0 */
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ioctl(rodent.mfd, TIOCMBIC, &i);
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usleep(240000);
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/* wait for respose, 2nd phase (2.1.6) */
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i = FREAD;
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ioctl(rodent.mfd, TIOCFLUSH, &i);
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i = TIOCM_DTR | TIOCM_RTS; /* DTR = 1, RTS = 1 */
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ioctl(rodent.mfd, TIOCMBIS, &i);
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/* try to read something */
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FD_ZERO(&fds);
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FD_SET(rodent.mfd, &fds);
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timeout.tv_sec = 0;
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timeout.tv_usec = 240000;
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if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) {
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debug("pnpwakeup1(): valid response in second phase.");
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return TRUE;
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}
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}
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/* port setup, 2nd phase (2.1.5) */
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i = TIOCM_DTR | TIOCM_RTS; /* DTR = 0, RTS = 0 */
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ioctl(rodent.mfd, TIOCMBIC, &i);
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usleep(240000);
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/* wait for respose, 2nd phase (2.1.6) */
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i = FREAD;
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ioctl(rodent.mfd, TIOCFLUSH, &i);
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i = TIOCM_DTR | TIOCM_RTS; /* DTR = 1, RTS = 1 */
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ioctl(rodent.mfd, TIOCMBIS, &i);
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/* try to read something */
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FD_ZERO(&fds);
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FD_SET(rodent.mfd, &fds);
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timeout.tv_sec = 0;
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timeout.tv_usec = 240000;
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if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) {
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debug("pnpwakeup1(): valid response in second phase.");
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return TRUE;
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}
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return FALSE;
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}
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@ -1936,7 +1936,7 @@ pnpwakeup2(void)
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/*
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* This is a simplified procedure; it simply toggles RTS.
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*/
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debug("PnP COM device rev 0.9 probe...");
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debug("alternate probe...");
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ioctl(rodent.mfd, TIOCMGET, &i);
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i |= TIOCM_DTR; /* DTR = 1 */
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@ -1961,6 +1961,7 @@ pnpwakeup2(void)
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debug("pnpwakeup2(): valid response.");
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return TRUE;
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}
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return FALSE;
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}
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