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https://github.com/RIOT-OS/RIOT.git
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50 lines
1.7 KiB
Diff
50 lines
1.7 KiB
Diff
*** stock_iot-lab_M3/openwsn/cross-layers/openrandom.c Thu Apr 24 11:01:37 2014
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--- riot-openwsn-wip/openwsn/cross-layers/openrandom.c Thu Apr 24 16:55:54 2014
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***************
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*** 4,27 ****
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//=========================== variables =======================================
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- typedef struct {
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- uint16_t shift_reg; // Galois shift register used to obtain a pseudo-random number
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- } random_vars_t;
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-
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random_vars_t random_vars;
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//=========================== prototypes ======================================
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//=========================== public ==========================================
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! void openrandom_init() {
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// seed the random number generator with the last 2 bytes of the MAC address
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random_vars.shift_reg = 0;
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random_vars.shift_reg += idmanager_getMyID(ADDR_16B)->addr_16b[0]*256;
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random_vars.shift_reg += idmanager_getMyID(ADDR_16B)->addr_16b[1];
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}
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! uint16_t openrandom_get16b() {
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uint8_t i;
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uint16_t random_value;
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random_value = 0;
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--- 4,23 ----
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//=========================== variables =======================================
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random_vars_t random_vars;
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//=========================== prototypes ======================================
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//=========================== public ==========================================
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! void openrandom_init(void) {
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// seed the random number generator with the last 2 bytes of the MAC address
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random_vars.shift_reg = 0;
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random_vars.shift_reg += idmanager_getMyID(ADDR_16B)->addr_16b[0]*256;
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random_vars.shift_reg += idmanager_getMyID(ADDR_16B)->addr_16b[1];
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}
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! uint16_t openrandom_get16b(void) {
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uint8_t i;
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uint16_t random_value;
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random_value = 0;
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