kdrive: add apm support, fix MTRR unmapping bug

hw/kdrive/linux/linux.c

@@ -1,5 +1,5 @@
 /*
- * $XFree86$
+ * $XFree86: xc/programs/Xserver/hw/kdrive/linux/linux.c,v 1.5 2001/03/30 02:15:20 keithp Exp $
  *
  * Copyright © 1999 Keith Packard
  *
@@ -30,9 +30,11 @@
 #include <sys/stat.h>
 #include <sys/ioctl.h>
 #include <keysym.h>
+#include <linux/apm_bios.h>
 
 static int  vtno;
 int  LinuxConsoleFd;
+int  LinuxApmFd = -1;
 static int  activeVT;
 static Bool enabled;
 
@@ -255,6 +257,65 @@ LinuxSetSwitchMode (int mode)
     }
 }
 
+void
+LinuxApmBlock (pointer blockData, OSTimePtr pTimeout, pointer pReadmask)
+{
+}
+
+static Bool LinuxApmRunning;
+
+void
+LinuxApmWakeup (pointer blockData, int result, pointer pReadmask)
+{
+    fd_set  *readmask = (fd_set *) pReadmask;
+
+    if (result > 0 && LinuxApmFd >= 0 && FD_ISSET (LinuxApmFd, readmask))
+    {
+	apm_event_t event;
+	Bool	    running = LinuxApmRunning;
+	int	    cmd = APM_IOC_SUSPEND;
+
+	while (read (LinuxApmFd, &event, sizeof (event)) == sizeof (event))
+	{
+	    switch (event) {
+	    case APM_SYS_STANDBY:
+	    case APM_USER_STANDBY:
+		running = FALSE;
+		cmd = APM_IOC_STANDBY;
+		break;
+	    case APM_SYS_SUSPEND:
+	    case APM_USER_SUSPEND:
+	    case APM_CRITICAL_SUSPEND:
+		running = FALSE;
+		cmd = APM_IOC_SUSPEND;
+		break;
+	    case APM_NORMAL_RESUME:
+	    case APM_CRITICAL_RESUME:
+	    case APM_STANDBY_RESUME:
+		running = TRUE;
+		break;
+	    }
+	}
+	if (running && !LinuxApmRunning)
+	{
+	    KdResume ();
+	    LinuxApmRunning = TRUE;
+	}
+	else if (!running && LinuxApmRunning)
+	{
+	    KdSuspend ();
+	    LinuxApmRunning = FALSE;
+	    ioctl (LinuxApmFd, cmd, 0);
+	}
+    }
+}
+
+#ifdef FNONBLOCK
+#define NOBLOCK FNONBLOCK
+#else
+#define NOBLOCK FNDELAY
+#endif
+
 void
 LinuxEnable (void)
 {
@@ -265,6 +326,18 @@ LinuxEnable (void)
 	kdSwitchPending = FALSE;
 	ioctl (LinuxConsoleFd, VT_RELDISP, VT_ACKACQ);
     }
+    /*
+     * Open the APM driver
+     */
+    LinuxApmFd = open ("/dev/apm_bios", 0);
+    if (LinuxApmFd >= 0)
+    {
+	LinuxApmRunning = TRUE;
+	fcntl (LinuxApmFd, F_SETFL, fcntl (LinuxApmFd, F_GETFL) | NOBLOCK);
+	RegisterBlockAndWakeupHandlers (LinuxApmBlock, LinuxApmWakeup, 0);
+	AddEnabledDevice (LinuxApmFd);
+    }
+	
     /*
      * now get the VT
      */
@@ -314,6 +387,13 @@ LinuxDisable (void)
 	ioctl (LinuxConsoleFd, VT_RELDISP, 1);
     }
     enabled = FALSE;
+    if (LinuxApmFd >= 0)
+    {
+	RemoveBlockAndWakeupHandlers (LinuxApmBlock, LinuxApmWakeup, 0);
+	RemoveEnabledDevice (LinuxApmFd);
+	close (LinuxApmFd);
+	LinuxApmFd = -1;
+    }
 }
 
 void

hw/kdrive/mach64/mach64.c

@@ -19,7 +19,7 @@
  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  */
-/* $XFree86: xc/programs/Xserver/hw/kdrive/mach64/mach64.c,v 1.6 2001/07/20 19:35:30 keithp Exp $ */
+/* $XFree86: xc/programs/Xserver/hw/kdrive/mach64/mach64.c,v 1.7 2001/07/24 19:06:03 keithp Exp $ */
 
 #include "mach64.h"
 #include <sys/io.h>
@@ -215,10 +215,10 @@ mach64UnmapReg (KdCardInfo *card, Mach64CardInfo *mach64c)
 {
     if (mach64c->reg_base)
     {
-	KdUnmapDevice ((void *) mach64c->reg_base, MACH64_REG_SIZE(card));
 	KdResetMappedMode (MACH64_REG_BASE(card),
 			   MACH64_REG_SIZE(card),
 			   KD_MAPPED_MODE_REGISTERS);
+	KdUnmapDevice ((void *) mach64c->reg_base, MACH64_REG_SIZE(card));
 	mach64c->reg_base = 0;
 	mach64c->reg = 0;
 	mach64c->media_reg = 0;

hw/kdrive/src/kdrive.c

@@ -21,7 +21,7 @@
  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  */
-/* $XFree86: xc/programs/Xserver/hw/kdrive/kdrive.c,v 1.17 2001/06/13 19:18:03 keithp Exp $ */
+/* $XFree86: xc/programs/Xserver/hw/kdrive/kdrive.c,v 1.18 2001/07/20 19:35:29 keithp Exp $ */
 
 #include "kdrive.h"
 #ifdef PSEUDO8
@@ -233,6 +233,45 @@ KdDisableScreens (void)
     }
 }
 
+void
+KdSuspend (void)
+{
+    KdCardInfo	    *card;
+    KdScreenInfo    *screen;
+
+    if (kdEnabled)
+    {
+	for (card = kdCardInfo; card; card = card->next)
+	{
+	    for (screen = card->screenList; screen; screen = screen->next)
+		if (screen->mynum == card->selected && screen->pScreen)
+		    KdDisableScreen (screen->pScreen);
+	    if (card->driver)
+		(*card->cfuncs->restore) (card);
+	}
+	KdDisableInput ();
+    }
+}
+
+void
+KdResume (void)
+{
+    KdCardInfo	    *card;
+    KdScreenInfo    *screen;
+
+    if (kdEnabled)
+    {
+	for (card = kdCardInfo; card; card = card->next)
+	{
+	    (*card->cfuncs->preserve) (card);
+	    for (screen = card->screenList; screen; screen = screen->next)
+		if (screen->mynum == card->selected && screen->pScreen)
+		    KdEnableScreen (screen->pScreen);
+	}
+	KdEnableInput ();
+    }
+}
+
 Bool
 KdEnableScreen (ScreenPtr pScreen)
 {

hw/kdrive/src/kdrive.h

@@ -21,7 +21,7 @@
  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  */
-/* $XFree86: xc/programs/Xserver/hw/kdrive/kdrive.h,v 1.17 2001/07/11 02:58:19 keithp Exp $ */
+/* $XFree86: xc/programs/Xserver/hw/kdrive/kdrive.h,v 1.18 2001/07/20 19:35:29 keithp Exp $ */
 
 #include <stdio.h>
 #include "X.h"
@@ -465,6 +465,12 @@ KdEnableScreen (ScreenPtr pScreen);
 void
 KdEnableScreens (void);
 
+void
+KdSuspend (void);
+
+void
+KdResume (void);
+
 void
 KdProcessSwitch (void);
 

hw/kdrive/src/kmap.c

@@ -21,7 +21,7 @@
  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  */
-/* $XFree86: xc/programs/Xserver/hw/kdrive/kmap.c,v 1.8 2001/05/23 08:56:08 alanh Exp $ */
+/* $XFree86: xc/programs/Xserver/hw/kdrive/kmap.c,v 1.9 2001/06/29 13:57:45 keithp Exp $ */
 
 #include "kdrive.h"
 
@@ -135,7 +135,9 @@ KdSetMappedMode (CARD32 addr, CARD32 size, int mode)
 	sentry.size = bound - base;
 	sentry.type = type;
 	
-	ioctl (mtrr, MTRRIOC_ADD_ENTRY, &sentry);
+	if (ioctl (mtrr, MTRRIOC_ADD_ENTRY, &sentry) < 0)
+	    ErrorF ("MTRRIOC_ADD_ENTRY failed 0x%x 0x%x %d (errno %d)\n",
+		    base, bound - base, type, errno);
     }
 #endif
 }
@@ -154,7 +156,7 @@ KdResetMappedMode (CARD32 addr, CARD32 size, int mode)
 	mtrr = open ("/proc/mtrr", 2);
     if (mtrr > 0)
     {
-	base = addr & ~((1<22)-1);
+	base = addr & ~((1<<22)-1);
 	bound = ((addr + size) + ((1<<22) - 1)) & ~((1<<22) - 1);
 	switch (mode) {
 	case KD_MAPPED_MODE_REGISTERS:
@@ -168,7 +170,9 @@ KdResetMappedMode (CARD32 addr, CARD32 size, int mode)
 	sentry.size = bound - base;
 	sentry.type = type;
 	
-	ioctl (mtrr, MTRRIOC_DEL_ENTRY, &sentry);
+	if (ioctl (mtrr, MTRRIOC_DEL_ENTRY, &sentry) < 0)
+	    ErrorF ("MTRRIOC_DEL_ENTRY failed 0x%x 0x%x %d (errno %d)\n",
+		    base, bound - base, type, errno);
     }
 #endif
 }