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1 /* -*- linux-c -*- |
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2 * |
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3 * (C) 2003 zecke@handhelds.org |
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4 * |
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5 * GPL version 2 |
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6 * |
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7 * based on arch/arm/kernel/apm.c |
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8 * factor out the information needed by architectures to provide |
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9 * apm status |
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10 */ |
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11 #ifndef __LINUX_APM_EMULATION_H |
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12 #define __LINUX_APM_EMULATION_H |
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13 |
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14 #include <linux/apm_bios.h> |
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15 |
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16 /* |
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17 * This structure gets filled in by the machine specific 'get_power_status' |
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18 * implementation. Any fields which are not set default to a safe value. |
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19 */ |
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20 struct apm_power_info { |
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21 unsigned char ac_line_status; |
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22 #define APM_AC_OFFLINE 0 |
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23 #define APM_AC_ONLINE 1 |
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24 #define APM_AC_BACKUP 2 |
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25 #define APM_AC_UNKNOWN 0xff |
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26 |
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27 unsigned char battery_status; |
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28 #define APM_BATTERY_STATUS_HIGH 0 |
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29 #define APM_BATTERY_STATUS_LOW 1 |
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30 #define APM_BATTERY_STATUS_CRITICAL 2 |
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31 #define APM_BATTERY_STATUS_CHARGING 3 |
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32 #define APM_BATTERY_STATUS_NOT_PRESENT 4 |
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33 #define APM_BATTERY_STATUS_UNKNOWN 0xff |
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34 |
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35 unsigned char battery_flag; |
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36 #define APM_BATTERY_FLAG_HIGH (1 << 0) |
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37 #define APM_BATTERY_FLAG_LOW (1 << 1) |
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38 #define APM_BATTERY_FLAG_CRITICAL (1 << 2) |
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39 #define APM_BATTERY_FLAG_CHARGING (1 << 3) |
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40 #define APM_BATTERY_FLAG_NOT_PRESENT (1 << 7) |
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41 #define APM_BATTERY_FLAG_UNKNOWN 0xff |
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42 |
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43 int battery_life; |
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44 int time; |
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45 int units; |
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46 #define APM_UNITS_MINS 0 |
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47 #define APM_UNITS_SECS 1 |
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48 #define APM_UNITS_UNKNOWN -1 |
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49 |
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50 }; |
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51 |
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52 /* |
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53 * This allows machines to provide their own "apm get power status" function. |
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54 */ |
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55 extern void (*apm_get_power_status)(struct apm_power_info *); |
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56 |
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57 /* |
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58 * Queue an event (APM_SYS_SUSPEND or APM_CRITICAL_SUSPEND) |
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59 */ |
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60 void apm_queue_event(apm_event_t event); |
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61 |
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62 #endif /* __LINUX_APM_EMULATION_H */ |