diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/usbduxsigma.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/usbduxsigma.c | 40 |
1 files changed, 15 insertions, 25 deletions
diff --git a/drivers/staging/comedi/drivers/usbduxsigma.c b/drivers/staging/comedi/drivers/usbduxsigma.c index 88c60b6020c4..ccc3ef7ba55c 100644 --- a/drivers/staging/comedi/drivers/usbduxsigma.c +++ b/drivers/staging/comedi/drivers/usbduxsigma.c @@ -161,14 +161,11 @@ struct usbduxsigma_private { /* input buffer for single insn */ uint8_t *insn_buf; - uint8_t ao_chanlist[USBDUXSIGMA_NUM_AO_CHAN]; unsigned int ao_readback[USBDUXSIGMA_NUM_AO_CHAN]; unsigned high_speed:1; unsigned ai_cmd_running:1; - unsigned ai_continuous:1; unsigned ao_cmd_running:1; - unsigned ao_continuous:1; unsigned pwm_cmd_running:1; /* number of samples to acquire */ @@ -223,6 +220,7 @@ static void usbduxsigma_ai_urb_complete(struct urb *urb) struct comedi_device *dev = urb->context; struct usbduxsigma_private *devpriv = dev->private; struct comedi_subdevice *s = dev->read_subdev; + struct comedi_cmd *cmd = &s->async->cmd; unsigned int dio_state; uint32_t val; int ret; @@ -301,7 +299,7 @@ static void usbduxsigma_ai_urb_complete(struct urb *urb) /* timer zero, transfer measurements to comedi */ devpriv->ai_counter = devpriv->ai_timer; - if (!devpriv->ai_continuous) { + if (cmd->stop_src == TRIG_COUNT) { /* not continuous, fixed number of samples */ devpriv->ai_sample_count--; if (devpriv->ai_sample_count < 0) { @@ -314,7 +312,7 @@ static void usbduxsigma_ai_urb_complete(struct urb *urb) } /* get the data from the USB bus and hand it over to comedi */ - for (i = 0; i < s->async->cmd.chanlist_len; i++) { + for (i = 0; i < cmd->chanlist_len; i++) { /* transfer data, note first byte is the DIO state */ val = be32_to_cpu(devpriv->in_buf[i+1]); val &= 0x00ffffff; /* strip status byte */ @@ -360,8 +358,8 @@ static void usbduxsigma_ao_urb_complete(struct urb *urb) struct comedi_device *dev = urb->context; struct usbduxsigma_private *devpriv = dev->private; struct comedi_subdevice *s = dev->write_subdev; + struct comedi_cmd *cmd = &s->async->cmd; uint8_t *datap; - int len; int ret; int i; @@ -403,7 +401,7 @@ static void usbduxsigma_ao_urb_complete(struct urb *urb) /* timer zero, transfer from comedi */ devpriv->ao_counter = devpriv->ao_timer; - if (!devpriv->ao_continuous) { + if (cmd->stop_src == TRIG_COUNT) { /* not continuous, fixed number of samples */ devpriv->ao_sample_count--; if (devpriv->ao_sample_count < 0) { @@ -417,13 +415,12 @@ static void usbduxsigma_ao_urb_complete(struct urb *urb) /* transmit data to the USB bus */ datap = urb->transfer_buffer; - len = s->async->cmd.chanlist_len; - *datap++ = len; - for (i = 0; i < len; i++) { - unsigned int chan = devpriv->ao_chanlist[i]; + *datap++ = cmd->chanlist_len; + for (i = 0; i < cmd->chanlist_len; i++) { + unsigned int chan = CR_CHAN(cmd->chanlist[i]); unsigned short val; - ret = comedi_buf_get(s->async, &val); + ret = comedi_buf_get(s, &val); if (ret < 0) { dev_err(dev->class_dev, "buffer underflow\n"); s->async->events |= (COMEDI_CB_EOA | @@ -596,10 +593,8 @@ static int usbduxsigma_ai_cmdtest(struct comedi_device *dev, if (cmd->stop_src == TRIG_COUNT) { /* data arrives as one packet */ devpriv->ai_sample_count = cmd->stop_arg; - devpriv->ai_continuous = 0; } else { /* continuous acquisition */ - devpriv->ai_continuous = 1; devpriv->ai_sample_count = 0; } @@ -663,12 +658,13 @@ static int usbduxsigma_receive_cmd(struct comedi_device *dev, int command) static int usbduxsigma_ai_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, - unsigned int trignum) + unsigned int trig_num) { struct usbduxsigma_private *devpriv = dev->private; + struct comedi_cmd *cmd = &s->async->cmd; int ret; - if (trignum != 0) + if (trig_num != cmd->start_arg) return -EINVAL; down(&devpriv->sem); @@ -738,7 +734,6 @@ static int usbduxsigma_ai_cmd(struct comedi_device *dev, } s->async->inttrig = NULL; } else { /* TRIG_INT */ - /* wait for an internal signal and submit the urbs later */ s->async->inttrig = usbduxsigma_ai_inttrig; } @@ -856,12 +851,13 @@ static int usbduxsigma_ao_insn_write(struct comedi_device *dev, static int usbduxsigma_ao_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, - unsigned int trignum) + unsigned int trig_num) { struct usbduxsigma_private *devpriv = dev->private; + struct comedi_cmd *cmd = &s->async->cmd; int ret; - if (trignum != 0) + if (trig_num != cmd->start_arg) return -EINVAL; down(&devpriv->sem); @@ -985,10 +981,8 @@ static int usbduxsigma_ao_cmdtest(struct comedi_device *dev, */ devpriv->ao_sample_count = cmd->stop_arg; } - devpriv->ao_continuous = 0; } else { /* continuous acquisition */ - devpriv->ao_continuous = 1; devpriv->ao_sample_count = 0; } @@ -1004,14 +998,11 @@ static int usbduxsigma_ao_cmd(struct comedi_device *dev, struct usbduxsigma_private *devpriv = dev->private; struct comedi_cmd *cmd = &s->async->cmd; int ret; - int i; down(&devpriv->sem); /* set current channel of the running acquisition to zero */ s->async->cur_chan = 0; - for (i = 0; i < cmd->chanlist_len; ++i) - devpriv->ao_chanlist[i] = CR_CHAN(cmd->chanlist[i]); devpriv->ao_counter = devpriv->ao_timer; @@ -1027,7 +1018,6 @@ static int usbduxsigma_ao_cmd(struct comedi_device *dev, } s->async->inttrig = NULL; } else { /* TRIG_INT */ - /* wait for an internal signal and submit the urbs later */ s->async->inttrig = usbduxsigma_ao_inttrig; } |