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Merge pull request #502 from kanoi/master

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Klondike temp checking and read buffer size
This commit is contained in:
kanoi 2013-10-11 06:26:58 -07:00
commit 159673cf0a
1 changed files with 32 additions and 3 deletions
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35
driver-klondike.c
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@ -39,7 +39,7 @@
#define REPLY_SIZE 15 // adequate for all types of replies
#define REPLY_BUFSIZE 16 // reply + 1 byte to mark used
#define MAX_REPLY_COUNT 32 // more unhandled replies than this will result in data loss
#define MAX_REPLY_COUNT 4096 // more unhandled replies than this will result in data loss
#define REPLY_WAIT_TIME 100 // poll interval for a cmd waiting it's reply
#define CMD_REPLY_RETRIES 8 // how many retries for cmds
#define MAX_WORK_COUNT 4 // for now, must be binary multiple and match firmware
@ -120,6 +120,9 @@ static double cvtKlnToC(uint8_t temp)
{
double Rt, stein, celsius;
if (temp == 0)
return 0.0;
Rt = 1000.0 * 255.0 / (double)temp - 1000.0;
stein = log(Rt / 2200.0) / 3987.0;
@ -128,13 +131,39 @@ static double cvtKlnToC(uint8_t temp)
celsius = (1.0 / stein) - 273.15;
// For display of bad data
if (celsius < 0.0)
celsius = 0.0;
if (celsius > 200.0)
celsius = 200.0;
return celsius;
}
static int cvtCToKln(double deg)
{
double R = exp((1/(deg+273.15)-1/(273.15+25))*3987)*2200;
return 256*R/(R+1000);
double Rt, stein, temp;
if (deg < 0.0)
deg = 0.0;
stein = 1.0 / (deg + 273.15);
stein -= 1.0 / (double)(25.0 + 273.15);
Rt = exp(stein * 3987.0) * 2200.0;
if (Rt == -1000.0)
Rt++;
temp = 1000.0 * 256.0 / (Rt + 1000.0);
if (temp > 255)
temp = 255;
if (temp < 0)
temp = 0;
return (int)temp;
}
static char *SendCmdGetReply(struct cgpu_info *klncgpu, char Cmd, int device, int datalen, void *data)