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Rev | Author | Line No. | Line |
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2 | pj | 1 | /* Project: OSLib |
2 | * Description: The OS Construction Kit |
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3 | * Date: 1.6.2000 |
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4 | * Idea by: Luca Abeni & Gerardo Lamastra |
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5 | * |
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6 | * OSLib is an SO project aimed at developing a common, easy-to-use |
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7 | * low-level infrastructure for developing OS kernels and Embedded |
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8 | * Applications; it partially derives from the HARTIK project but it |
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9 | * currently is independently developed. |
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10 | * |
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11 | * OSLib is distributed under GPL License, and some of its code has |
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12 | * been derived from the Linux kernel source; also some important |
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13 | * ideas come from studying the DJGPP go32 extender. |
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14 | * |
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15 | * We acknowledge the Linux Community, Free Software Foundation, |
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16 | * D.J. Delorie and all the other developers who believe in the |
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17 | * freedom of software and ideas. |
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18 | * |
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19 | * For legalese, check out the included GPL license. |
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20 | */ |
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21 | |||
22 | /* Reset (or halt...) the system */ |
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23 | |||
24 | #include <ll/i386/hw-func.h> |
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25 | #include <ll/i386/cons.h> |
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26 | |||
27 | FILE(reboot); |
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28 | |||
29 | void halt(void) |
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30 | { |
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31 | cputs("Halt called"); |
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32 | __asm__("hlt"); |
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33 | } |
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34 | /* |
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35 | * This code has been taken by the Linux Kernel and it has been |
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36 | * freely modified and simplified to do a reboot! |
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37 | */ |
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38 | |||
39 | void cold_reboot(void) |
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40 | { |
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41 | reboot(0); |
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42 | } |
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43 | |||
44 | void warm_reboot(void) |
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45 | { |
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46 | reboot(0x1234); |
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47 | } |
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48 | |||
49 | /* |
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50 | * This routine reboots the machine by asking the keyboard |
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51 | * controller to pulse the reset-line low. If mode = 0x1234 you |
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52 | * tell to BIOS to do a warm boot, else cold boot is performed! |
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53 | */ |
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54 | void reboot(int mode) |
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55 | { |
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56 | register int i,j; |
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57 | |||
58 | lmempokew((LIN_ADDR)0x472,mode); |
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59 | for (;;) { |
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60 | /* Wait for keyboard controller ready */ |
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61 | for (i=0; i<0x10000; i++) |
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62 | if ((inp(0x64) & 0x02) == 0) break; |
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63 | /* Do nothing for a while... */ |
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64 | for(j = 0; j < 100000 ; j++); |
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65 | /* pulse reset low */ |
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66 | outp(0xfe,0x64); |
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67 | /* Do nothing for a while... */ |
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68 | for(j = 0; j < 100000 ; j++); |
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69 | } |
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70 | } |