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Make canned responsed const

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henryk@ploetzli.ch 2009-10-25 09:58:23 +00:00
parent ccedd6ae6b
commit 4014b814fb
1 changed files with 8 additions and 7 deletions
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15
armsrc/legicrf.c
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@ -16,11 +16,11 @@ static struct legic_frame {
uint16_t data; uint16_t data;
} current_frame; } current_frame;
static struct legic_frame queries[] = { static const struct legic_frame queries[] = {
{7, 0x55}, /* 1010 101 */ {7, 0x55}, /* 1010 101 */
}; };
static struct legic_frame responses[] = { static const struct legic_frame responses[] = {
{6, 0x3b}, /* 1101 11 */ {6, 0x3b}, /* 1101 11 */
}; };
@ -55,18 +55,19 @@ static void frame_send(uint16_t response, int bits)
static void frame_respond(struct legic_frame const * const f) static void frame_respond(struct legic_frame const * const f)
{ {
LED_D_ON(); LED_D_ON();
int i; int i, r_size;
struct legic_frame *r = NULL; uint16_t r_data;
for(i=0; i<sizeof(queries)/sizeof(queries[0]); i++) { for(i=0; i<sizeof(queries)/sizeof(queries[0]); i++) {
if(f->bits == queries[i].bits && f->data == queries[i].data) { if(f->bits == queries[i].bits && f->data == queries[i].data) {
r = &responses[i]; r_data = responses[i].data;
r_size = responses[i].bits;
break; break;
} }
} }
if(r != NULL) { if(r_size != 0) {
frame_send(r->data, r->bits); frame_send(r_data, r_size);
LED_A_ON(); LED_A_ON();
} else { } else {
LED_A_OFF(); LED_A_OFF();