diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2014-11-05 10:21:00 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-05 14:59:47 -0800 |
| commit | f831de1023d981859870b073796308c25295926c (patch) | |
| tree | 6a0d3b1c845d697ff19284f387c32a32e2b9fd16 /drivers | |
| parent | c76844e1ffd7504b6f5b9a356ac3d3d230eed8db (diff) | |
staging: comedi: adv_pci1710: use comedi_async 'scans_done' to detect EOA
Remove the private data member 'ai_act_scan' and use the comedi_async
'scans_done' member to detect the end-of-acquisition.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/comedi/drivers/adv_pci1710.c | 26 |
1 files changed, 5 insertions, 21 deletions
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c index 107a0f137eaf..d02df7d0c629 100644 --- a/drivers/staging/comedi/drivers/adv_pci1710.c +++ b/drivers/staging/comedi/drivers/adv_pci1710.c @@ -298,7 +298,6 @@ static const struct boardtype boardtypes[] = { struct pci1710_private { unsigned int CntrlReg; /* Control register */ - unsigned int ai_act_scan; /* how many scans we finished */ unsigned char ai_et; unsigned int ai_et_CntrlReg; unsigned int ai_et_MuxVal; @@ -730,15 +729,12 @@ static int pci171x_ai_cancel(struct comedi_device *dev, break; } - devpriv->ai_act_scan = 0; - return 0; } static void pci1710_handle_every_sample(struct comedi_device *dev, struct comedi_subdevice *s) { - struct pci1710_private *devpriv = dev->private; struct comedi_cmd *cmd = &s->async->cmd; unsigned int status; unsigned int val; @@ -772,14 +768,10 @@ static void pci1710_handle_every_sample(struct comedi_device *dev, val &= s->maxdata; comedi_buf_write_samples(s, &val, 1); - if (s->async->cur_chan == 0) { /* one scan done */ - devpriv->ai_act_scan++; - if (cmd->stop_src == TRIG_COUNT && - devpriv->ai_act_scan >= cmd->stop_arg) { - /* all data sampled */ - s->async->events |= COMEDI_CB_EOA; - break; - } + if (cmd->stop_src == TRIG_COUNT && + s->async->scans_done >= cmd->stop_arg) { + s->async->events |= COMEDI_CB_EOA; + break; } } @@ -794,7 +786,6 @@ static void pci1710_handle_every_sample(struct comedi_device *dev, static int move_block_from_fifo(struct comedi_device *dev, struct comedi_subdevice *s, int n, int turn) { - struct pci1710_private *devpriv = dev->private; unsigned int val; int ret; int i; @@ -810,9 +801,6 @@ static int move_block_from_fifo(struct comedi_device *dev, val &= s->maxdata; comedi_buf_write_samples(s, &val, 1); - - if (s->async->cur_chan == 0) - devpriv->ai_act_scan++; } return 0; } @@ -821,7 +809,6 @@ static void pci1710_handle_fifo(struct comedi_device *dev, struct comedi_subdevice *s) { const struct boardtype *this_board = dev->board_ptr; - struct pci1710_private *devpriv = dev->private; struct comedi_cmd *cmd = &s->async->cmd; unsigned int nsamples; unsigned int m; @@ -855,8 +842,7 @@ static void pci1710_handle_fifo(struct comedi_device *dev, } if (cmd->stop_src == TRIG_COUNT && - devpriv->ai_act_scan >= cmd->stop_arg) { - /* all data sampled */ + s->async->scans_done >= cmd->stop_arg) { s->async->events |= COMEDI_CB_EOA; comedi_handle_events(dev, s); return; @@ -921,8 +907,6 @@ static int pci171x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) outb(0, dev->iobase + PCI171x_CLRFIFO); outb(0, dev->iobase + PCI171x_CLRINT); - devpriv->ai_act_scan = 0; - devpriv->CntrlReg &= Control_CNT0; if ((cmd->flags & CMDF_WAKE_EOS) == 0) devpriv->CntrlReg |= Control_ONEFH; |