From: Ian Abbott Date: Wed, 20 Jan 2010 13:04:47 +0000 (+0000) Subject: Staging: comedi: adv_pci1710: Correct AI scan count and channel checks X-Git-Tag: firefly_0821_release~9833^2~2832^2~1^2~177 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=61283d227c6b39e30afc6346db099521b0b64fa1;p=firefly-linux-kernel-4.4.55.git Staging: comedi: adv_pci1710: Correct AI scan count and channel checks For AI commands, the internal channel list used to check incoming data was only set up partially if the channel list contained repeats. Set it up fully. Also the current scan position was not updated properly when moving a block of data from the FIFO unless a whole number of scans was moved. Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c index 03c73a889048..82433864094f 100644 --- a/drivers/staging/comedi/drivers/adv_pci1710.c +++ b/drivers/staging/comedi/drivers/adv_pci1710.c @@ -724,6 +724,7 @@ static int move_block_from_fifo(struct comedi_device *dev, devpriv->ai_act_scan++; } } + s->async->cur_chan = j; DPRINTK("adv_pci1710 EDBG: END: move_block_from_fifo(...)\n"); return 0; } @@ -1230,6 +1231,12 @@ static void setup_channel_list(struct comedi_device *dev, DPRINTK("GS: %2d. [%4x]=%4x %4x\n", i, chanprog, range, devpriv->act_chanlist[i]); } +#ifdef PCI171x_PARANOIDCHECK + for ( ; i < n_chan; i++) { /* store remainder of channel list */ + devpriv->act_chanlist[i] = + (CR_CHAN(chanlist[i]) << 12) & 0xf000; + } +#endif devpriv->ai_et_MuxVal = CR_CHAN(chanlist[0]) | (CR_CHAN(chanlist[seglen - 1]) << 8);