Commit 4b10567f60452bbca0bd3f57ef54a6003329b9b4
2014-01-06T18:41:26
Set atrvec only once and use a local array for each device's work.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
diff --git a/libbitfury.c b/libbitfury.c
index 6d27154..f6aa981 100644
--- a/libbitfury.c
+++ b/libbitfury.c
@@ -97,6 +97,7 @@ static unsigned int atrvec[] = {
0,0,0,0,0,0,0,0,
0x6f3806c3, 0x41f82a4f, 0x3fd40c1a, 0x00334b39, /* WDATA: hashMerleRoot[7], nTime, nBits, nNonce */
};
+static bool atrvec_set;
static int rehash(unsigned char *midstate, unsigned m7, unsigned ntime, unsigned nbits,
unsigned nnonce)
@@ -197,9 +198,12 @@ void spi_send_init(struct bitfury_info *info)
/* PREPARE BUFFERS (INITIAL PROGRAMMING) */
unsigned int w[16];
- ms3steps(atrvec);
- ms3steps(&atrvec[20]);
- ms3steps(&atrvec[40]);
+ if (!atrvec_set) {
+ atrvec_set = true;
+ ms3steps(atrvec);
+ ms3steps(&atrvec[20]);
+ ms3steps(&atrvec[40]);
+ }
memset(w, 0, sizeof(w));
w[3] = 0xffffffff;
w[4] = 0x80000000;
@@ -358,14 +362,15 @@ bool libbitfury_sendHashData(struct cgpu_info *bf)
unsigned *oldbuf = info->oldbuf;
struct bitfury_payload *p = &(info->payload);
struct bitfury_payload *op = &(info->opayload);
+ unsigned int localvec[80];
/* Programming next value */
- memcpy(atrvec, p, 20 * 4);
- ms3steps(atrvec);
+ memcpy(localvec, p, 20 * 4);
+ ms3steps(localvec);
spi_clear_buf(info);
spi_add_break(info);
- spi_add_data(info, 0x3000, (void*)&atrvec[0], 19 * 4);
+ spi_add_data(info, 0x3000, (void*)localvec, 19 * 4);
if (!spi_txrx(bf, info))
return false;