diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/pcl812.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/pcl812.c | 40 |
1 files changed, 14 insertions, 26 deletions
diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c index fd5ea6e01619..ac243ca5e0f8 100644 --- a/drivers/staging/comedi/drivers/pcl812.c +++ b/drivers/staging/comedi/drivers/pcl812.c @@ -512,7 +512,6 @@ struct pcl812_private { unsigned int last_ai_chanspec; unsigned char mode_reg_int; /* there is stored INT number for some card */ unsigned int ai_poll_ptr; /* how many sampes transfer poll */ - unsigned int ai_act_scan; /* how many scans we finished */ unsigned int dmapages; unsigned int hwdmasize; unsigned long dmabuf[2]; /* PTR to DMA buf */ @@ -556,8 +555,8 @@ static void pcl812_ai_setup_dma(struct comedi_device *dev, /* we use EOS, so adapt DMA buffer to one scan */ if (devpriv->ai_eos) { - devpriv->dmabytestomove[0] = cfc_bytes_per_scan(s); - devpriv->dmabytestomove[1] = cfc_bytes_per_scan(s); + devpriv->dmabytestomove[0] = comedi_bytes_per_scan(s); + devpriv->dmabytestomove[1] = comedi_bytes_per_scan(s); devpriv->dma_runs_to_end = 1; } else { devpriv->dmabytestomove[0] = devpriv->hwdmasize; @@ -572,7 +571,7 @@ static void pcl812_ai_setup_dma(struct comedi_device *dev, devpriv->dma_runs_to_end = 1; } else { /* how many samples we must transfer? */ - bytes = cmd->stop_arg * cfc_bytes_per_scan(s); + bytes = cmd->stop_arg * comedi_bytes_per_scan(s); /* how many DMA pages we must fill */ devpriv->dma_runs_to_end = @@ -807,9 +806,7 @@ static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) devpriv->ai_dma = 0; } - devpriv->ai_act_scan = 0; devpriv->ai_poll_ptr = 0; - s->async->cur_chan = 0; /* don't we want wake up every scan? */ if (cmd->flags & CMDF_WAKE_EOS) { @@ -841,21 +838,10 @@ static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) static bool pcl812_ai_next_chan(struct comedi_device *dev, struct comedi_subdevice *s) { - struct pcl812_private *devpriv = dev->private; struct comedi_cmd *cmd = &s->async->cmd; - s->async->events |= COMEDI_CB_BLOCK; - - s->async->cur_chan++; - if (s->async->cur_chan >= cmd->chanlist_len) { - s->async->cur_chan = 0; - devpriv->ai_act_scan++; - s->async->events |= COMEDI_CB_EOS; - } - 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; return false; } @@ -867,7 +853,9 @@ static void pcl812_handle_eoc(struct comedi_device *dev, struct comedi_subdevice *s) { struct comedi_cmd *cmd = &s->async->cmd; + unsigned int chan = s->async->cur_chan; unsigned int next_chan; + unsigned short val; if (pcl812_ai_eoc(dev, s, NULL, 0)) { dev_dbg(dev->class_dev, "A/D cmd IRQ without DRDY!\n"); @@ -875,13 +863,12 @@ static void pcl812_handle_eoc(struct comedi_device *dev, return; } - comedi_buf_put(s, pcl812_ai_get_sample(dev, s)); + val = pcl812_ai_get_sample(dev, s); + comedi_buf_write_samples(s, &val, 1); /* Set up next channel. Added by abbotti 2010-01-20, but untested. */ - next_chan = s->async->cur_chan + 1; - if (next_chan >= cmd->chanlist_len) - next_chan = 0; - if (cmd->chanlist[s->async->cur_chan] != cmd->chanlist[next_chan]) + next_chan = s->async->cur_chan; + if (cmd->chanlist[chan] != cmd->chanlist[next_chan]) pcl812_ai_set_chan_range(dev, cmd->chanlist[next_chan], 0); pcl812_ai_next_chan(dev, s); @@ -893,9 +880,11 @@ static void transfer_from_dma_buf(struct comedi_device *dev, unsigned int bufptr, unsigned int len) { unsigned int i; + unsigned short val; for (i = len; i; i--) { - comedi_buf_put(s, ptr[bufptr++]); + val = ptr[bufptr++]; + comedi_buf_write_samples(s, &val, 1); if (!pcl812_ai_next_chan(dev, s)) break; @@ -939,7 +928,7 @@ static irqreturn_t pcl812_interrupt(int irq, void *d) pcl812_ai_clear_eoc(dev); - cfc_handle_events(dev, s); + comedi_handle_events(dev, s); return IRQ_HANDLED; } @@ -1335,7 +1324,6 @@ static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it) break; } s->insn_write = pcl812_ao_insn_write; - s->insn_read = comedi_readback_insn_read; ret = comedi_alloc_subdev_readback(s); if (ret) |