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Repeat going idle after avalon reset, and wait for write ready before sending each reset request instead of some arbitrary sleep time.

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This commit is contained in:
Con Kolivas 2013-05-25 22:21:02 +10:00
parent a1cec2cdaf
commit e2c4379290
1 changed files with 10 additions and 4 deletions
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14
driver-avalon.c
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@ -416,9 +416,6 @@ static void avalon_idle(struct cgpu_info *avalon, int fd)
break; break;
} }
applog(LOG_ERR, "Avalon: Going to idle mode"); applog(LOG_ERR, "Avalon: Going to idle mode");
sleep(2);
avalon_clear_readbuf(fd);
applog(LOG_ERR, "Avalon: Idle");
} }
static int avalon_reset(struct cgpu_info *avalon, int fd) static int avalon_reset(struct cgpu_info *avalon, int fd)
@ -437,11 +434,18 @@ static int avalon_reset(struct cgpu_info *avalon, int fd)
ret = avalon_write(fd, "ad", 2); ret = avalon_write(fd, "ad", 2);
if (unlikely(ret == AVA_SEND_ERROR)) if (unlikely(ret == AVA_SEND_ERROR))
return -1; return -1;
/* Ignore first result as it may be corrupt with old work */
avalon_clear_readbuf(fd);
/* What do these sleeps do?? */
p.tv_sec = 0; p.tv_sec = 0;
p.tv_nsec = AVALON_RESET_PITCH; p.tv_nsec = AVALON_RESET_PITCH;
nanosleep(&p, NULL); nanosleep(&p, NULL);
avalon_clear_readbuf(fd);
avalon_idle(avalon, fd); avalon_idle(avalon, fd);
avalon_wait_write(fd);
avalon_clear_readbuf(fd);
applog(LOG_ERR, "Avalon: Idle");
/* Reset again, then check result */ /* Reset again, then check result */
ret = avalon_write(fd, "ad", 2); ret = avalon_write(fd, "ad", 2);
if (unlikely(ret == AVA_SEND_ERROR)) if (unlikely(ret == AVA_SEND_ERROR))
@ -468,6 +472,8 @@ static int avalon_reset(struct cgpu_info *avalon, int fd)
/* FIXME: return 1; */ /* FIXME: return 1; */
} else } else
applog(LOG_WARNING, "Avalon: Reset succeeded"); applog(LOG_WARNING, "Avalon: Reset succeeded");
avalon_idle(avalon, fd);
return 0; return 0;
} }