repositories / deb_xorg-server.git / blame
| Commit | Line | Data |
|---|---|---|
| a09e091a JB |
1 | #ifdef HAVE_XORG_CONFIG_H |
| 2 | #include "xorg-config.h" | |
| 3 | #endif | |
| 4 | ||
| 5 | #include "os.h" | |
| 6 | #include "xf86.h" | |
| 7 | #include "xf86Priv.h" | |
| 8 | #define XF86_OS_PRIVS | |
| 9 | #include "xf86_OSproc.h" | |
| 10 | #include <sys/ioctl.h> | |
| 11 | #include <sys/types.h> | |
| 12 | #include <sys/socket.h> | |
| 13 | #include <sys/un.h> | |
| 14 | #include <unistd.h> | |
| 15 | #include <fcntl.h> | |
| 16 | #include <errno.h> | |
| 17 | ||
| 18 | #define ACPI_SOCKET "/var/run/acpid.socket" | |
| 19 | ||
| 20 | #define ACPI_VIDEO_NOTIFY_SWITCH 0x80 | |
| 21 | #define ACPI_VIDEO_NOTIFY_PROBE 0x81 | |
| 22 | #define ACPI_VIDEO_NOTIFY_CYCLE 0x82 | |
| 23 | #define ACPI_VIDEO_NOTIFY_NEXT_OUTPUT 0x83 | |
| 24 | #define ACPI_VIDEO_NOTIFY_PREV_OUTPUT 0x84 | |
| 25 | ||
| 26 | #define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS 0x85 | |
| 27 | #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86 | |
| 28 | #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87 | |
| 29 | #define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS 0x88 | |
| 30 | #define ACPI_VIDEO_NOTIFY_DISPLAY_OFF 0x89 | |
| 31 | ||
| 32 | #define ACPI_VIDEO_HEAD_INVALID (~0u - 1) | |
| 33 | #define ACPI_VIDEO_HEAD_END (~0u) | |
| 34 | ||
| 35 | static void lnxCloseACPI(void); | |
| 36 | static pointer ACPIihPtr = NULL; | |
| 37 | PMClose lnxACPIOpen(void); | |
| 38 | ||
| 39 | /* in milliseconds */ | |
| 40 | #define ACPI_REOPEN_DELAY 1000 | |
| 41 | ||
| 42 | static CARD32 | |
| 43 | lnxACPIReopen(OsTimerPtr timer, CARD32 time, pointer arg) | |
| 44 | { | |
| 45 | if (lnxACPIOpen()) { | |
| 46 | TimerFree(timer); | |
| 47 | return 0; | |
| 48 | } | |
| 49 | ||
| 50 | return ACPI_REOPEN_DELAY; | |
| 51 | } | |
| 52 | ||
| 53 | #define LINE_LENGTH 80 | |
| 54 | ||
| 55 | static int | |
| 56 | lnxACPIGetEventFromOs(int fd, pmEvent * events, int num) | |
| 57 | { | |
| 58 | char ev[LINE_LENGTH]; | |
| 59 | int n; | |
| 60 | ||
| 61 | memset(ev, 0, LINE_LENGTH); | |
| 62 | ||
| 63 | do { | |
| 64 | n = read(fd, ev, LINE_LENGTH); | |
| 65 | } while ((n == -1) && (errno == EAGAIN || errno == EINTR)); | |
| 66 | ||
| 67 | if (n <= 0) { | |
| 68 | lnxCloseACPI(); | |
| 69 | TimerSet(NULL, 0, ACPI_REOPEN_DELAY, lnxACPIReopen, NULL); | |
| 70 | return 0; | |
| 71 | } | |
| 72 | /* FIXME: this only processes the first read ACPI event & might break | |
| 73 | * with interrupted reads. */ | |
| 74 | ||
| 75 | /* Check that we have a video event */ | |
| 76 | if (!strncmp(ev, "video", 5)) { | |
| 77 | char *video = NULL; | |
| 78 | char *GFX = NULL; | |
| 79 | char *notify = NULL; | |
| 80 | char *data = NULL; /* doesn't appear to be used in the kernel */ | |
| 81 | unsigned long int notify_l, data_l; | |
| 82 | ||
| 83 | video = strtok(ev, " "); | |
| 84 | ||
| 85 | if (!(GFX = strtok(NULL, " "))) | |
| 86 | return 0; | |
| 87 | #if 0 | |
| 88 | ErrorF("GFX: %s\n", GFX); | |
| 89 | #endif | |
| 90 | ||
| 91 | if (!(notify = strtok(NULL, " "))) | |
| 92 | return 0; | |
| 93 | notify_l = strtoul(notify, NULL, 16); | |
| 94 | #if 0 | |
| 95 | ErrorF("notify: 0x%lx\n", notify_l); | |
| 96 | #endif | |
| 97 | ||
| 98 | if (!(data = strtok(NULL, " "))) | |
| 99 | return 0; | |
| 100 | data_l = strtoul(data, NULL, 16); | |
| 101 | #if 0 | |
| 102 | ErrorF("data: 0x%lx\n", data_l); | |
| 103 | #endif | |
| 104 | ||
| 105 | /* Differentiate between events */ | |
| 106 | switch (notify_l) { | |
| 107 | case ACPI_VIDEO_NOTIFY_SWITCH: | |
| 108 | case ACPI_VIDEO_NOTIFY_CYCLE: | |
| 109 | case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT: | |
| 110 | case ACPI_VIDEO_NOTIFY_PREV_OUTPUT: | |
| 111 | events[0] = XF86_APM_CAPABILITY_CHANGED; | |
| 112 | return 1; | |
| 113 | case ACPI_VIDEO_NOTIFY_PROBE: | |
| 114 | return 0; | |
| 115 | default: | |
| 116 | return 0; | |
| 117 | } | |
| 118 | } | |
| 119 | ||
| 120 | return 0; | |
| 121 | } | |
| 122 | ||
| 123 | static pmWait | |
| 124 | lnxACPIConfirmEventToOs(int fd, pmEvent event) | |
| 125 | { | |
| 126 | /* No ability to send back to the kernel in ACPI */ | |
| 127 | switch (event) { | |
| 128 | default: | |
| 129 | return PM_NONE; | |
| 130 | } | |
| 131 | } | |
| 132 | ||
| 133 | PMClose | |
| 134 | lnxACPIOpen(void) | |
| 135 | { | |
| 136 | int fd; | |
| 137 | struct sockaddr_un addr; | |
| 138 | int r = -1; | |
| 139 | static int warned = 0; | |
| 140 | ||
| 141 | DebugF("ACPI: OSPMOpen called\n"); | |
| 142 | if (ACPIihPtr || !xf86Info.pmFlag) | |
| 143 | return NULL; | |
| 144 | ||
| 145 | DebugF("ACPI: Opening device\n"); | |
| 146 | if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) > -1) { | |
| 147 | memset(&addr, 0, sizeof(addr)); | |
| 148 | addr.sun_family = AF_UNIX; | |
| 149 | strcpy(addr.sun_path, ACPI_SOCKET); | |
| 150 | if ((r = connect(fd, (struct sockaddr *) &addr, sizeof(addr))) == -1) { | |
| 151 | if (!warned) | |
| 152 | xf86MsgVerb(X_WARNING, 3, "Open ACPI failed (%s) (%s)\n", | |
| 153 | ACPI_SOCKET, strerror(errno)); | |
| 154 | warned = 1; | |
| 155 | shutdown(fd, 2); | |
| 156 | close(fd); | |
| 157 | return NULL; | |
| 158 | } | |
| 159 | } | |
| 160 | ||
| 161 | xf86PMGetEventFromOs = lnxACPIGetEventFromOs; | |
| 162 | xf86PMConfirmEventToOs = lnxACPIConfirmEventToOs; | |
| 163 | ACPIihPtr = xf86AddGeneralHandler(fd, xf86HandlePMEvents, NULL); | |
| 164 | xf86MsgVerb(X_INFO, 3, "Open ACPI successful (%s)\n", ACPI_SOCKET); | |
| 165 | warned = 0; | |
| 166 | ||
| 167 | return lnxCloseACPI; | |
| 168 | } | |
| 169 | ||
| 170 | static void | |
| 171 | lnxCloseACPI(void) | |
| 172 | { | |
| 173 | int fd; | |
| 174 | ||
| 175 | DebugF("ACPI: Closing device\n"); | |
| 176 | if (ACPIihPtr) { | |
| 177 | fd = xf86RemoveGeneralHandler(ACPIihPtr); | |
| 178 | shutdown(fd, 2); | |
| 179 | close(fd); | |
| 180 | ACPIihPtr = NULL; | |
| 181 | } | |
| 182 | } |