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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 8327 | maxcodehac | 1 | #include "pxa255_TIMR.h" |
| 2 | #include "mem.h" |
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| 3 | |||
| 4 | |||
| 5 | static void pxa255timrPrvRaiseLowerInts(Pxa255timr* timr){ |
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| 6 | |||
| 7 | pxa255icInt(timr->ic, PXA255_I_TIMR0, (timr->OSSR & 1) != 0); |
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| 8 | pxa255icInt(timr->ic, PXA255_I_TIMR1, (timr->OSSR & 2) != 0); |
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| 9 | pxa255icInt(timr->ic, PXA255_I_TIMR2, (timr->OSSR & 4) != 0); |
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| 10 | pxa255icInt(timr->ic, PXA255_I_TIMR3, (timr->OSSR & 8) != 0); |
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| 11 | } |
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| 12 | |||
| 13 | static void pxa255timrPrvCheckMatch(Pxa255timr* timr, UInt8 idx){ |
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| 14 | |||
| 15 | UInt8 v = 1UL << idx; |
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| 16 | |||
| 17 | if((timr->OSCR == timr->OSMR[idx]) && (timr->OIER & v)){ |
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| 18 | timr->OSSR |= v; |
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| 19 | } |
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| 20 | } |
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| 21 | |||
| 22 | static void pxa255timrPrvUpdate(Pxa255timr* timr){ |
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| 23 | |||
| 24 | pxa255timrPrvCheckMatch(timr, 0); |
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| 25 | pxa255timrPrvCheckMatch(timr, 1); |
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| 26 | pxa255timrPrvCheckMatch(timr, 2); |
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| 27 | pxa255timrPrvCheckMatch(timr, 3); |
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| 28 | } |
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| 29 | |||
| 30 | static Boolean pxa255timrPrvMemAccessF(void* userData, UInt32 pa, UInt8 size, Boolean write, void* buf){ |
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| 31 | |||
| 32 | Pxa255timr* timr = userData; |
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| 33 | UInt32 val = 0; |
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| 34 | |||
| 35 | if(size != 4) { |
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| 36 | err_str(__FILE__ ": Unexpected "); |
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| 37 | // err_str(write ? "write" : "read"); |
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| 38 | // err_str(" of "); |
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| 39 | // err_dec(size); |
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| 40 | // err_str(" bytes to 0x"); |
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| 41 | // err_hex(pa); |
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| 42 | // err_str("\r\n"); |
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| 43 | return true; //we do not support non-word accesses |
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| 44 | } |
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| 45 | |||
| 46 | pa = (pa - PXA255_TIMR_BASE) >> 2; |
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| 47 | |||
| 48 | if(write){ |
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| 49 | val = *(UInt32*)buf; |
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| 50 | |||
| 51 | switch(pa){ |
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| 52 | case 0: |
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| 53 | case 1: |
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| 54 | case 2: |
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| 55 | case 3: |
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| 56 | timr->OSMR[pa] = val; |
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| 57 | break; |
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| 58 | |||
| 59 | case 4: |
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| 60 | timr->OSCR = val; |
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| 61 | break; |
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| 62 | |||
| 63 | case 5: |
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| 64 | timr->OSSR = timr->OSSR &~ val; |
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| 65 | pxa255timrPrvRaiseLowerInts(timr); |
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| 66 | break; |
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| 67 | |||
| 68 | case 6: |
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| 69 | timr->OWER = val; |
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| 70 | break; |
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| 71 | |||
| 72 | case 7: |
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| 73 | timr->OIER = val; |
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| 74 | pxa255timrPrvUpdate(timr); |
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| 75 | pxa255timrPrvRaiseLowerInts(timr); |
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| 76 | break; |
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| 77 | } |
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| 78 | } |
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| 79 | else{ |
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| 80 | switch(pa){ |
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| 81 | case 0: |
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| 82 | case 1: |
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| 83 | case 2: |
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| 84 | case 3: |
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| 85 | val = timr->OSMR[pa]; |
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| 86 | break; |
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| 87 | |||
| 88 | case 4: |
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| 89 | val = timr->OSCR; |
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| 90 | break; |
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| 91 | |||
| 92 | case 5: |
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| 93 | val = timr->OSSR; |
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| 94 | break; |
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| 95 | |||
| 96 | case 6: |
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| 97 | val = timr->OWER; |
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| 98 | break; |
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| 99 | |||
| 100 | case 7: |
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| 101 | val = timr->OIER; |
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| 102 | break; |
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| 103 | } |
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| 104 | *(UInt32*)buf = val; |
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| 105 | } |
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| 106 | |||
| 107 | return true; |
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| 108 | } |
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| 109 | |||
| 110 | |||
| 111 | Boolean pxa255timrInit(Pxa255timr* timr, ArmMem* physMem, Pxa255ic* ic){ |
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| 112 | |||
| 113 | __mem_zero(timr, sizeof(Pxa255timr)); |
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| 114 | timr->ic = ic; |
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| 115 | return memRegionAdd(physMem, PXA255_TIMR_BASE, PXA255_TIMR_SIZE, pxa255timrPrvMemAccessF, timr); |
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| 116 | } |
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| 117 | |||
| 118 | void pxa255timrTick(Pxa255timr* timr){ |
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| 119 | |||
| 120 | timr->OSCR++; |
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| 121 | pxa255timrPrvUpdate(timr); |
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| 122 | pxa255timrPrvRaiseLowerInts(timr); |
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| 123 | } |