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Code Issues Releases Wiki Activity

Use a separate function for bfl initialise that doesn't require locking.

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This commit is contained in:
Con Kolivas 2013-04-26 12:21:25 +10:00
parent 009008ade7
commit e92b13a2a2
1 changed files with 17 additions and 17 deletions
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34
driver-bflsc.c
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@ -459,7 +459,7 @@ static void xlinkstr(char *xlink, int dev, struct bflsc_info *sc_info)
}
}
static void bflsc_initialise(struct cgpu_info *bflsc, bool lock)
static void __bflsc_initialise(struct cgpu_info *bflsc)
{
int err;
@ -468,11 +468,8 @@ static void bflsc_initialise(struct cgpu_info *bflsc, bool lock)
// TODO: does x-link bypass the other device FTDI? (I think it does)
// So no initialisation required except for the master device?
if (lock)
mutex_lock(&(bflsc->device_mutex));
if (bflsc->usbinfo.nodev)
goto failed;
return;
// Reset
err = usb_transfer(bflsc, FTDI_TYPE_OUT, FTDI_REQUEST_RESET,
@ -482,7 +479,7 @@ static void bflsc_initialise(struct cgpu_info *bflsc, bool lock)
bflsc->drv->name, bflsc->device_id, err);
if (bflsc->usbinfo.nodev)
goto failed;
return;
// Set data control
err = usb_transfer(bflsc, FTDI_TYPE_OUT, FTDI_REQUEST_DATA,
@ -492,7 +489,7 @@ static void bflsc_initialise(struct cgpu_info *bflsc, bool lock)
bflsc->drv->name, bflsc->device_id, err);
if (bflsc->usbinfo.nodev)
goto failed;
return;
// Set the baud
err = usb_transfer(bflsc, FTDI_TYPE_OUT, FTDI_REQUEST_BAUD, FTDI_VALUE_BAUD,
@ -503,7 +500,7 @@ static void bflsc_initialise(struct cgpu_info *bflsc, bool lock)
bflsc->drv->name, bflsc->device_id, err);
if (bflsc->usbinfo.nodev)
goto failed;
return;
// Set Flow Control
err = usb_transfer(bflsc, FTDI_TYPE_OUT, FTDI_REQUEST_FLOW,
@ -513,7 +510,7 @@ static void bflsc_initialise(struct cgpu_info *bflsc, bool lock)
bflsc->drv->name, bflsc->device_id, err);
if (bflsc->usbinfo.nodev)
goto failed;
return;
// Set Modem Control
err = usb_transfer(bflsc, FTDI_TYPE_OUT, FTDI_REQUEST_MODEM,
@ -523,7 +520,7 @@ static void bflsc_initialise(struct cgpu_info *bflsc, bool lock)
bflsc->drv->name, bflsc->device_id, err);
if (bflsc->usbinfo.nodev)
goto failed;
return;
// Clear any sent data
err = usb_transfer(bflsc, FTDI_TYPE_OUT, FTDI_REQUEST_RESET,
@ -533,7 +530,7 @@ static void bflsc_initialise(struct cgpu_info *bflsc, bool lock)
bflsc->drv->name, bflsc->device_id, err);
if (bflsc->usbinfo.nodev)
goto failed;
return;
// Clear any received data
err = usb_transfer(bflsc, FTDI_TYPE_OUT, FTDI_REQUEST_RESET,
@ -542,10 +539,13 @@ static void bflsc_initialise(struct cgpu_info *bflsc, bool lock)
applog(LOG_DEBUG, "%s%i: purgerx got err %d",
bflsc->drv->name, bflsc->device_id, err);
failed:
}
if (lock)
mutex_unlock(&(bflsc->device_mutex));
static void bflsc_initialise(struct cgpu_info *bflsc)
{
mutex_lock(&(bflsc->device_mutex));
bflsc_initialise(bflsc);
mutex_unlock(&(bflsc->device_mutex));
}
static int write_to_dev(struct cgpu_info *bflsc, int dev, char *buf, int buflen, int *amount, enum usb_cmds cmd)
@ -690,7 +690,7 @@ retry:
init_sleep = REINIT_TIME_FIRST_MS;
gettimeofday(&init_start, NULL);
reinit:
bflsc_initialise(bflsc, false);
__bflsc_initialise(bflsc);
err = write_to_dev(bflsc, 0, BFLSC_IDENTIFY, BFLSC_IDENTIFY_LEN, &amount, C_REQUESTIDENTIFY);
if (err < 0 || amount != BFLSC_IDENTIFY_LEN) {
applog(LOG_ERR, "%s detect (%s) send identify request failed (%d:%d)",
@ -1313,7 +1313,7 @@ static void bflsc_thread_enable(struct thr_info *thr)
if (bflsc->usbinfo.nodev)
return;
bflsc_initialise(bflsc, true);
bflsc_initialise(bflsc);
}
static bool bflsc_send_work(struct cgpu_info *bflsc, int dev, struct work *work)
@ -1565,7 +1565,7 @@ static bool bflsc_thread_init(struct thr_info *thr)
if (bflsc->usbinfo.nodev)
return false;
bflsc_initialise(bflsc, true);
bflsc_initialise(bflsc);
return true;
}