| 1 | |
| 2 | #ifdef HAVE_XORG_CONFIG_H |
| 3 | #include <xorg-config.h> |
| 4 | #endif |
| 5 | |
| 6 | #include <X11/X.h> |
| 7 | #include "os.h" |
| 8 | #include "xf86.h" |
| 9 | #include "xf86Priv.h" |
| 10 | #define XF86_OS_PRIVS |
| 11 | #include "xf86_OSproc.h" |
| 12 | |
| 13 | #ifdef HAVE_ACPI |
| 14 | extern PMClose lnxACPIOpen(void); |
| 15 | #endif |
| 16 | |
| 17 | #ifdef HAVE_APM |
| 18 | |
| 19 | #include <linux/apm_bios.h> |
| 20 | #include <unistd.h> |
| 21 | #include <sys/ioctl.h> |
| 22 | #include <sys/types.h> |
| 23 | #include <sys/stat.h> |
| 24 | #include <fcntl.h> |
| 25 | #include <errno.h> |
| 26 | |
| 27 | #define APM_PROC "/proc/apm" |
| 28 | #define APM_DEVICE "/dev/apm_bios" |
| 29 | |
| 30 | #ifndef APM_STANDBY_FAILED |
| 31 | #define APM_STANDBY_FAILED 0xf000 |
| 32 | #endif |
| 33 | #ifndef APM_SUSPEND_FAILED |
| 34 | #define APM_SUSPEND_FAILED 0xf001 |
| 35 | #endif |
| 36 | |
| 37 | static PMClose lnxAPMOpen(void); |
| 38 | static void lnxCloseAPM(void); |
| 39 | static pointer APMihPtr = NULL; |
| 40 | |
| 41 | static struct { |
| 42 | apm_event_t apmLinux; |
| 43 | pmEvent xf86; |
| 44 | } LinuxToXF86[] = { |
| 45 | {APM_SYS_STANDBY, XF86_APM_SYS_STANDBY}, |
| 46 | {APM_SYS_SUSPEND, XF86_APM_SYS_SUSPEND}, |
| 47 | {APM_NORMAL_RESUME, XF86_APM_NORMAL_RESUME}, |
| 48 | {APM_CRITICAL_RESUME, XF86_APM_CRITICAL_RESUME}, |
| 49 | {APM_LOW_BATTERY, XF86_APM_LOW_BATTERY}, |
| 50 | {APM_POWER_STATUS_CHANGE, XF86_APM_POWER_STATUS_CHANGE}, |
| 51 | {APM_UPDATE_TIME, XF86_APM_UPDATE_TIME}, |
| 52 | {APM_CRITICAL_SUSPEND, XF86_APM_CRITICAL_SUSPEND}, |
| 53 | {APM_USER_STANDBY, XF86_APM_USER_STANDBY}, |
| 54 | {APM_USER_SUSPEND, XF86_APM_USER_SUSPEND}, |
| 55 | {APM_STANDBY_RESUME, XF86_APM_STANDBY_RESUME}, |
| 56 | #if defined(APM_CAPABILITY_CHANGED) |
| 57 | {APM_CAPABILITY_CHANGED, XF86_CAPABILITY_CHANGED}, |
| 58 | #endif |
| 59 | #if 0 |
| 60 | {APM_STANDBY_FAILED, XF86_APM_STANDBY_FAILED}, |
| 61 | {APM_SUSPEND_FAILED, XF86_APM_SUSPEND_FAILED} |
| 62 | #endif |
| 63 | }; |
| 64 | |
| 65 | #define numApmEvents (sizeof(LinuxToXF86) / sizeof(LinuxToXF86[0])) |
| 66 | |
| 67 | /* |
| 68 | * APM is still under construction. |
| 69 | * I'm not sure if the places where I initialize/deinitialize |
| 70 | * apm is correct. Also I don't know what to do in SETUP state. |
| 71 | * This depends if wakeup gets called in this situation, too. |
| 72 | * Also we need to check if the action that is taken on an |
| 73 | * event is reasonable. |
| 74 | */ |
| 75 | static int |
| 76 | lnxPMGetEventFromOs(int fd, pmEvent * events, int num) |
| 77 | { |
| 78 | int i, j, n; |
| 79 | apm_event_t linuxEvents[8]; |
| 80 | |
| 81 | if ((n = read(fd, linuxEvents, num * sizeof(apm_event_t))) == -1) |
| 82 | return 0; |
| 83 | n /= sizeof(apm_event_t); |
| 84 | if (n > num) |
| 85 | n = num; |
| 86 | for (i = 0; i < n; i++) { |
| 87 | for (j = 0; j < numApmEvents; j++) |
| 88 | if (LinuxToXF86[j].apmLinux == linuxEvents[i]) { |
| 89 | events[i] = LinuxToXF86[j].xf86; |
| 90 | break; |
| 91 | } |
| 92 | if (j == numApmEvents) |
| 93 | events[i] = XF86_APM_UNKNOWN; |
| 94 | } |
| 95 | return n; |
| 96 | } |
| 97 | |
| 98 | static pmWait |
| 99 | lnxPMConfirmEventToOs(int fd, pmEvent event) |
| 100 | { |
| 101 | switch (event) { |
| 102 | case XF86_APM_SYS_STANDBY: |
| 103 | case XF86_APM_USER_STANDBY: |
| 104 | if (ioctl(fd, APM_IOC_STANDBY, NULL)) |
| 105 | return PM_FAILED; |
| 106 | return PM_CONTINUE; |
| 107 | case XF86_APM_SYS_SUSPEND: |
| 108 | case XF86_APM_CRITICAL_SUSPEND: |
| 109 | case XF86_APM_USER_SUSPEND: |
| 110 | if (ioctl(fd, APM_IOC_SUSPEND, NULL)) { |
| 111 | /* I believe this is wrong (EE) |
| 112 | EBUSY is sent when a device refuses to be suspended. |
| 113 | In this case we still need to undo everything we have |
| 114 | done to suspend ourselves or we will stay in suspended |
| 115 | state forever. */ |
| 116 | if (errno == EBUSY) |
| 117 | return PM_CONTINUE; |
| 118 | else |
| 119 | return PM_FAILED; |
| 120 | } |
| 121 | return PM_CONTINUE; |
| 122 | case XF86_APM_STANDBY_RESUME: |
| 123 | case XF86_APM_NORMAL_RESUME: |
| 124 | case XF86_APM_CRITICAL_RESUME: |
| 125 | case XF86_APM_STANDBY_FAILED: |
| 126 | case XF86_APM_SUSPEND_FAILED: |
| 127 | return PM_CONTINUE; |
| 128 | default: |
| 129 | return PM_NONE; |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | #endif // HAVE_APM |
| 134 | |
| 135 | PMClose |
| 136 | xf86OSPMOpen(void) |
| 137 | { |
| 138 | PMClose ret = NULL; |
| 139 | |
| 140 | #ifdef HAVE_ACPI |
| 141 | /* Favour ACPI over APM, but only when enabled */ |
| 142 | |
| 143 | if (!xf86acpiDisableFlag) |
| 144 | ret = lnxACPIOpen(); |
| 145 | |
| 146 | if (!ret) |
| 147 | #endif |
| 148 | #ifdef HAVE_APM |
| 149 | ret = lnxAPMOpen(); |
| 150 | #endif |
| 151 | |
| 152 | return ret; |
| 153 | } |
| 154 | |
| 155 | #ifdef HAVE_APM |
| 156 | |
| 157 | static PMClose |
| 158 | lnxAPMOpen(void) |
| 159 | { |
| 160 | int fd, pfd; |
| 161 | |
| 162 | DebugF("APM: OSPMOpen called\n"); |
| 163 | if (APMihPtr || !xf86Info.pmFlag) |
| 164 | return NULL; |
| 165 | |
| 166 | DebugF("APM: Opening device\n"); |
| 167 | if ((fd = open(APM_DEVICE, O_RDWR)) > -1) { |
| 168 | if (access(APM_PROC, R_OK) || ((pfd = open(APM_PROC, O_RDONLY)) == -1)) { |
| 169 | xf86MsgVerb(X_WARNING, 3, "Cannot open APM (%s) (%s)\n", |
| 170 | APM_PROC, strerror(errno)); |
| 171 | close(fd); |
| 172 | return NULL; |
| 173 | } |
| 174 | else |
| 175 | close(pfd); |
| 176 | xf86PMGetEventFromOs = lnxPMGetEventFromOs; |
| 177 | xf86PMConfirmEventToOs = lnxPMConfirmEventToOs; |
| 178 | APMihPtr = xf86AddGeneralHandler(fd, xf86HandlePMEvents, NULL); |
| 179 | xf86MsgVerb(X_INFO, 3, "Open APM successful\n"); |
| 180 | return lnxCloseAPM; |
| 181 | } |
| 182 | return NULL; |
| 183 | } |
| 184 | |
| 185 | static void |
| 186 | lnxCloseAPM(void) |
| 187 | { |
| 188 | int fd; |
| 189 | |
| 190 | DebugF("APM: Closing device\n"); |
| 191 | if (APMihPtr) { |
| 192 | fd = xf86RemoveGeneralHandler(APMihPtr); |
| 193 | close(fd); |
| 194 | APMihPtr = NULL; |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | #endif // HAVE_APM |