programs/Xserver/hw/xfree86/os-support/linux/lnx_acpi.c

programs/Xserver/hw/xfree86/os-support/linux/lnx_apm.c
programs/Xserver/hw/xfree86/os-support/linux/Imakefile Add basic ACPI Linux
    support so that events can be passed to the driver. (Alan Hourihane)

hw/xfree86/os-support/linux/lnx_acpi.c

@@ -0,0 +1,168 @@
+#include "X.h"
+#include "os.h"
+#include "xf86.h"
+#include "xf86Priv.h"
+#define XF86_OS_PRIVS
+#include "xf86_OSproc.h"
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+ 
+#define ACPI_SOCKET  "/var/run/acpid.socket"
+#define ACPI_EVENTS  "/proc/acpi/event"
+
+#define ACPI_VIDEO_NOTIFY_SWITCH	0x80
+#define ACPI_VIDEO_NOTIFY_PROBE		0x81
+#define ACPI_VIDEO_NOTIFY_CYCLE		0x82
+#define ACPI_VIDEO_NOTIFY_NEXT_OUTPUT	0x83
+#define ACPI_VIDEO_NOTIFY_PREV_OUTPUT	0x84
+
+#define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS	0x82
+#define	ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS	0x83
+#define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS	0x84
+#define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS	0x85
+#define ACPI_VIDEO_NOTIFY_DISPLAY_OFF		0x86
+
+#define ACPI_VIDEO_HEAD_INVALID		(~0u - 1)
+#define ACPI_VIDEO_HEAD_END		(~0u)
+
+static void lnxCloseACPI(void);
+static pointer ACPIihPtr = NULL;
+PMClose lnxACPIOpen(void);
+
+#define LINE_LENGTH 80
+
+static int
+lnxACPIGetEventFromOs(int fd, pmEvent *events, int num)
+{
+    char ev[LINE_LENGTH];
+    int n;
+
+    memset(ev, 0, LINE_LENGTH);
+
+    n = read( fd, ev, LINE_LENGTH );
+
+    /* Check that we have a video event */
+    if (strstr(ev, "video") == ev) {
+	char *video = NULL;
+	char *GFX = NULL;
+	char *notify = NULL;
+	char *data = NULL; /* doesn't appear to be used in the kernel */
+	unsigned long int notify_l, data_l;
+
+	video = strtok(ev, "video");
+
+	GFX = strtok(NULL, " ");
+#if 0
+	ErrorF("GFX: %s\n",GFX);
+#endif
+
+	notify = strtok(NULL, " ");
+	notify_l = strtoul(notify, NULL, 16);
+#if 0
+	ErrorF("notify: 0x%lx\n",notify_l);
+#endif
+
+	data = strtok(NULL, " ");
+	data_l = strtoul(data, NULL, 16);
+#if 0
+	ErrorF("data: 0x%lx\n",data_l);
+#endif
+
+	/* We currently don't differentiate between any event */
+	switch (notify_l) {
+		case ACPI_VIDEO_NOTIFY_SWITCH:
+			break;
+		case ACPI_VIDEO_NOTIFY_PROBE:
+			break;
+		case ACPI_VIDEO_NOTIFY_CYCLE:
+			break;
+		case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT:
+			break;
+		case ACPI_VIDEO_NOTIFY_PREV_OUTPUT:
+			break;
+		default:
+			break;
+	}
+
+	/* Deal with all ACPI events as a capability change */
+        events[0] = XF86_APM_CAPABILITY_CHANGED;
+
+	return 1;
+    }
+    
+    return 0;
+}
+
+static pmWait
+lnxACPIConfirmEventToOs(int fd, pmEvent event)
+{
+    /* No ability to send back to the kernel in ACPI */
+    switch (event) {
+    default:
+	return PM_NONE;
+    }
+}
+
+PMClose
+lnxACPIOpen(void)
+{
+    int fd;    
+    struct sockaddr_un addr;
+    int r = -1;
+
+#ifdef DEBUG
+    ErrorF("ACPI: OSPMOpen called\n");
+#endif
+    if (ACPIihPtr || !xf86Info.pmFlag)
+	return NULL;
+   
+#ifdef DEBUG
+    ErrorF("ACPI: Opening device\n");
+#endif
+    if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) > -1) {
+	memset(&addr, 0, sizeof(addr));
+	addr.sun_family = AF_UNIX;
+	strcpy(addr.sun_path, ACPI_SOCKET);
+	if ((r = connect(fd, (struct sockaddr*)&addr, sizeof(addr))) == -1) {
+	    shutdown(fd, 2);
+	    fd = -1;
+	}
+    }
+
+    /* acpid's socket isn't available, so try going direct */
+    if (fd == -1) {
+        if ((fd = open(ACPI_EVENTS, O_RDONLY)) < 0) {
+	    xf86MsgVerb(X_WARNING,3,"Open ACPI failed (%s) (%s)\n", ACPI_EVENTS,
+	    	strerror(errno));
+	    return NULL;
+    	}
+    }
+
+    xf86PMGetEventFromOs = lnxACPIGetEventFromOs;
+    xf86PMConfirmEventToOs = lnxACPIConfirmEventToOs;
+    ACPIihPtr = xf86AddInputHandler(fd,xf86HandlePMEvents,NULL);
+    xf86MsgVerb(X_INFO,3,"Open ACPI successful (%s)\n", (r != -1) ? ACPI_SOCKET : ACPI_EVENTS);
+
+    return lnxCloseACPI;
+}
+
+static void
+lnxCloseACPI(void)
+{
+    int fd;
+    
+#ifdef DEBUG
+   ErrorF("ACPI: Closing device\n");
+#endif
+    if (ACPIihPtr) {
+	fd = xf86RemoveInputHandler(ACPIihPtr);
+	shutdown(fd, 2);
+	ACPIihPtr = NULL;
+    }
+}
+

hw/xfree86/os-support/linux/lnx_agp.c

@@ -139,6 +139,8 @@ xf86GetAGPInfo(int screenNum)
 		return NULL;
 	}
 
+	memset((char*)&agpinf, 0, sizeof(agpinf));
+
 	if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
 		xf86DrvMsg(screenNum, X_ERROR,
 			   "xf86GetAGPInfo: AGPIOC_INFO failed (%s)\n",
@@ -154,6 +156,8 @@ xf86GetAGPInfo(int screenNum)
 	info->systemPages = agpinf.pg_system;
 	info->usedPages = agpinf.pg_used;
 
+	xf86DrvMsg(screenNum, X_INFO, "Kernel reported %d total, %d used\n", agpinf.pg_total, agpinf.pg_used);
+
 	return info;
 }
 

hw/xfree86/os-support/linux/lnx_apm.c

@@ -29,6 +29,8 @@
 # define APM_SUSPEND_FAILED 0xf001
 #endif
 
+static PMClose lnxAPMOpen(void);
+extern PMClose lnxACPIOpen(void);
 static void lnxCloseAPM(void);
 static pointer APMihPtr = NULL;
 
@@ -126,6 +128,21 @@ lnxPMConfirmEventToOs(int fd, pmEvent event)
 
 PMClose
 xf86OSPMOpen(void)
+{
+	PMClose ret = NULL;
+
+	/* Favour ACPI over APM */
+
+	ret = lnxACPIOpen();
+
+	if (!ret)
+		ret = lnxAPMOpen();
+
+	return ret;
+}
+
+static PMClose
+lnxAPMOpen(void)
 {
     int fd, pfd;