Attachment 35455 Details for Bug 57230 – intellimouse.patch

[patch] intellimouse.patch

intellimouse.patch (text/plain), 3.36 KB, created by Tom Convery on 2003-12-21 04:52:58 UTC

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Creator: Tom Convery

Created: 2003-12-21 04:52:58 UTC

Size: 3.36 KB

patch

obsolete

>--- psm.c.orig	Sat Dec 20 23:34:43 2003
>+++ psm.c	Sat Dec 20 23:47:52 2003
>@@ -774,6 +774,28 @@
> 	}
>     }
> 
>+    /*
>+     * The Avocent SwitchView KVM appears to force an Intellimouse Explorer
>+     * to revert to plain Intellimouse protocol whenever the device is
>+     * disabled. This hack checks to see if we previously detected an Explorer,
>+     * and tests if the device is now reporting a different ID. If this is the 
>+     * case, we try to re-enable Explorer functionality.
>+     */
>+    if ((sc->hw.hwid == PSM_EXPLORER_ID) &&
>+            (get_aux_id(sc->kbdc) != PSM_EXPLORER_ID)) {
>+        log(LOG_DEBUG, "psm%d: Intellimouse Explorer reverted to lower "
>+                       "protocol.\n", sc->unit);
>+        enable_msexplorer(sc);
>+        if (get_aux_id(sc->kbdc) == PSM_EXPLORER_ID)
>+            log(LOG_DEBUG, "psm%d: Restored Intellimouse Explorer protocol.\n",
>+                sc->unit);
>+        else
>+            log(LOG_DEBUG, "psm%d: Could not restore Intellimouse Explorer "
>+                           " protocol.\n", sc->unit);
>+            /* We shouldn't get here unless someone switched mice out from
>+             * underneath us. How and/or should we deal with this? */
>+    }
>+
>     if (get_mouse_status(sc->kbdc, stat, 0, 3) < 3) 
>         log(LOG_DEBUG, "psm%d: failed to get status (doopen).\n", sc->unit);
> 
>@@ -2768,18 +2790,38 @@
> static int
> enable_msexplorer(struct psm_softc *sc)
> {
>+    /* IntelliMouse initialization sequence */
>     static unsigned char rate0[] = { 200, 100, 80, };
>+    /* IntelliMouse Explorer initialization sequence */
>     static unsigned char rate1[] = { 200, 200, 80, };
>     KBDC kbdc = sc->kbdc;
>     int id;
>     int i;
> 
>-    /* the special sequence to enable the extra buttons and the roller. */
>+    /*
>+     * According to Microsoft's documentation for the IntelliMouse Explorer,
>+     * full functionality is activated by first sending the IntelliMouse
>+     * initialization sequence, then sending the Explorer initialization
>+     * sequence.
>+     * Reference: http://www.microsoft.com/whdc/hwdev/tech/input/5b_wheel.mspx
>+     */ 
>+
>+    /* First send the IntelliMouse init sequence */
>+    for (i = 0; i < sizeof(rate0)/sizeof(rate0[0]); ++i) {
>+        if (set_mouse_sampling_rate(kbdc, rate0[i]) != rate0[i])
>+            return FALSE;
>+    }
>+    /* If we've got an Explorer, it will claim to be an IntelliMouse here */
>+    id = get_aux_id(kbdc);
>+    if (id != PSM_INTELLI_ID)
>+        return FALSE;
>+
>+    /* Now send the Explorer init sequence */
>     for (i = 0; i < sizeof(rate1)/sizeof(rate1[0]); ++i) {
>         if (set_mouse_sampling_rate(kbdc, rate1[i]) != rate1[i])
> 	    return FALSE;
>     }
>-    /* the device will give the genuine ID only after the above sequence */
>+    /* If we've got an Explorer, now it will identify itself */
>     id = get_aux_id(kbdc);
>     if (id != PSM_EXPLORER_ID)
> 	return FALSE;
>@@ -2797,11 +2839,18 @@
>      * sequence; it will make the KVM think the mouse is IntelliMouse
>      * when it is in fact IntelliMouse Explorer.
>      */
>+
>+#if 0
>+    /*
>+     * This breaks IntelliMouse Explorer support with the Avocent
>+     * SwitchView, which DOES actually understand the Explorer protocol.
>+     */
>     for (i = 0; i < sizeof(rate0)/sizeof(rate0[0]); ++i) {
>         if (set_mouse_sampling_rate(kbdc, rate0[i]) != rate0[i])
> 	    break;
>     }
>     id = get_aux_id(kbdc);
>+#endif
> 
>     return TRUE;
> }

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