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#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);
close(fd);
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);
close(fd);
ACPIihPtr = NULL;
}
}
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