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STAGING: Fix pcl818.c coding style issue: code indent should use tabs where possible
Correct one coding style problem(detected by checkpatch.pl) in pcl818.c. - code indent should use tabs where possible It is fixed by reformatting the comment block to usual comment style. And with the reformatting, following coding style problem is also fixed: - please, no space before tabs Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Simon Guo
Greg Kroah-Hartman
parent
d0e9ed58f4
commit
25ef8072fb
@ -1,102 +1,95 @@
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/*
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comedi/drivers/pcl818.c
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Author: Michal Dobes <dobes@tesnet.cz>
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hardware driver for Advantech cards:
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card: PCL-818L, PCL-818H, PCL-818HD, PCL-818HG, PCL-818, PCL-718
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driver: pcl818l, pcl818h, pcl818hd, pcl818hg, pcl818, pcl718
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*/
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/*
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Driver: pcl818
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Description: Advantech PCL-818 cards, PCL-718
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Author: Michal Dobes <dobes@tesnet.cz>
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Devices: [Advantech] PCL-818L (pcl818l), PCL-818H (pcl818h),
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PCL-818HD (pcl818hd), PCL-818HG (pcl818hg), PCL-818 (pcl818),
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PCL-718 (pcl718)
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Status: works
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All cards have 16 SE/8 DIFF ADCs, one or two DACs, 16 DI and 16 DO.
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Differences are only at maximal sample speed, range list and FIFO
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support.
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The driver support AI mode 0, 1, 3 other subdevices (AO, DI, DO) support
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only mode 0. If DMA/FIFO/INT are disabled then AI support only mode 0.
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PCL-818HD and PCL-818HG support 1kword FIFO. Driver support this FIFO
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but this code is untested.
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A word or two about DMA. Driver support DMA operations at two ways:
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1) DMA uses two buffers and after one is filled then is generated
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INT and DMA restart with second buffer. With this mode I'm unable run
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more that 80Ksamples/secs without data dropouts on K6/233.
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2) DMA uses one buffer and run in autoinit mode and the data are
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from DMA buffer moved on the fly with 2kHz interrupts from RTC.
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This mode is used if the interrupt 8 is available for allocation.
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If not, then first DMA mode is used. With this I can run at
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full speed one card (100ksamples/secs) or two cards with
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60ksamples/secs each (more is problem on account of ISA limitations).
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To use this mode you must have compiled kernel with disabled
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"Enhanced Real Time Clock Support".
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Maybe you can have problems if you use xntpd or similar.
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If you've data dropouts with DMA mode 2 then:
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a) disable IDE DMA
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b) switch text mode console to fb.
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Options for PCL-818L:
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[0] - IO Base
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[1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
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[2] - DMA (0=disable, 1, 3)
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[3] - 0, 10=10MHz clock for 8254
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1= 1MHz clock for 8254
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[4] - 0, 5=A/D input -5V.. +5V
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1, 10=A/D input -10V..+10V
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[5] - 0, 5=D/A output 0-5V (internal reference -5V)
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1, 10=D/A output 0-10V (internal reference -10V)
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2 =D/A output unknown (external reference)
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Options for PCL-818, PCL-818H:
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[0] - IO Base
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[1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
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[2] - DMA (0=disable, 1, 3)
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[3] - 0, 10=10MHz clock for 8254
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1= 1MHz clock for 8254
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[4] - 0, 5=D/A output 0-5V (internal reference -5V)
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1, 10=D/A output 0-10V (internal reference -10V)
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2 =D/A output unknown (external reference)
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Options for PCL-818HD, PCL-818HG:
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[0] - IO Base
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[1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
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[2] - DMA/FIFO (-1=use FIFO, 0=disable both FIFO and DMA,
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1=use DMA ch 1, 3=use DMA ch 3)
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[3] - 0, 10=10MHz clock for 8254
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1= 1MHz clock for 8254
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[4] - 0, 5=D/A output 0-5V (internal reference -5V)
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1, 10=D/A output 0-10V (internal reference -10V)
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2 =D/A output unknown (external reference)
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Options for PCL-718:
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[0] - IO Base
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[1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
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[2] - DMA (0=disable, 1, 3)
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[3] - 0, 10=10MHz clock for 8254
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1= 1MHz clock for 8254
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[4] - 0=A/D Range is +/-10V
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1= +/-5V
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2= +/-2.5V
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3= +/-1V
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4= +/-0.5V
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5= user defined bipolar
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6= 0-10V
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7= 0-5V
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8= 0-2V
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9= 0-1V
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10= user defined unipolar
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[5] - 0, 5=D/A outputs 0-5V (internal reference -5V)
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1, 10=D/A outputs 0-10V (internal reference -10V)
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2=D/A outputs unknown (external reference)
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[6] - 0, 60=max 60kHz A/D sampling
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1,100=max 100kHz A/D sampling (PCL-718 with Option 001 installed)
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*/
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* comedi/drivers/pcl818.c
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*
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* Driver: pcl818
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* Description: Advantech PCL-818 cards, PCL-718
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* Author: Michal Dobes <dobes@tesnet.cz>
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* Devices: [Advantech] PCL-818L (pcl818l), PCL-818H (pcl818h),
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* PCL-818HD (pcl818hd), PCL-818HG (pcl818hg), PCL-818 (pcl818),
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* PCL-718 (pcl718)
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* Status: works
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*
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* All cards have 16 SE/8 DIFF ADCs, one or two DACs, 16 DI and 16 DO.
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* Differences are only at maximal sample speed, range list and FIFO
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* support.
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* The driver support AI mode 0, 1, 3 other subdevices (AO, DI, DO) support
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* only mode 0. If DMA/FIFO/INT are disabled then AI support only mode 0.
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* PCL-818HD and PCL-818HG support 1kword FIFO. Driver support this FIFO
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* but this code is untested.
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* A word or two about DMA. Driver support DMA operations at two ways:
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* 1) DMA uses two buffers and after one is filled then is generated
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* INT and DMA restart with second buffer. With this mode I'm unable run
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* more that 80Ksamples/secs without data dropouts on K6/233.
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* 2) DMA uses one buffer and run in autoinit mode and the data are
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* from DMA buffer moved on the fly with 2kHz interrupts from RTC.
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* This mode is used if the interrupt 8 is available for allocation.
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* If not, then first DMA mode is used. With this I can run at
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* full speed one card (100ksamples/secs) or two cards with
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* 60ksamples/secs each (more is problem on account of ISA limitations).
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* To use this mode you must have compiled kernel with disabled
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* "Enhanced Real Time Clock Support".
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* Maybe you can have problems if you use xntpd or similar.
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* If you've data dropouts with DMA mode 2 then:
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* a) disable IDE DMA
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* b) switch text mode console to fb.
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*
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* Options for PCL-818L:
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* [0] - IO Base
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* [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
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* [2] - DMA (0=disable, 1, 3)
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* [3] - 0, 10=10MHz clock for 8254
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* 1= 1MHz clock for 8254
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* [4] - 0, 5=A/D input -5V.. +5V
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* 1, 10=A/D input -10V..+10V
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* [5] - 0, 5=D/A output 0-5V (internal reference -5V)
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* 1, 10=D/A output 0-10V (internal reference -10V)
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* 2 =D/A output unknown (external reference)
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*
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* Options for PCL-818, PCL-818H:
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* [0] - IO Base
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* [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
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* [2] - DMA (0=disable, 1, 3)
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* [3] - 0, 10=10MHz clock for 8254
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* 1= 1MHz clock for 8254
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* [4] - 0, 5=D/A output 0-5V (internal reference -5V)
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* 1, 10=D/A output 0-10V (internal reference -10V)
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* 2 =D/A output unknown (external reference)
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*
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* Options for PCL-818HD, PCL-818HG:
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* [0] - IO Base
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* [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
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* [2] - DMA/FIFO (-1=use FIFO, 0=disable both FIFO and DMA,
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* 1=use DMA ch 1, 3=use DMA ch 3)
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* [3] - 0, 10=10MHz clock for 8254
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* 1= 1MHz clock for 8254
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* [4] - 0, 5=D/A output 0-5V (internal reference -5V)
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* 1, 10=D/A output 0-10V (internal reference -10V)
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* 2 =D/A output unknown (external reference)
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*
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* Options for PCL-718:
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* [0] - IO Base
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* [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
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* [2] - DMA (0=disable, 1, 3)
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* [3] - 0, 10=10MHz clock for 8254
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* 1= 1MHz clock for 8254
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* [4] - 0=A/D Range is +/-10V
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* 1= +/-5V
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* 2= +/-2.5V
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* 3= +/-1V
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* 4= +/-0.5V
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* 5= user defined bipolar
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* 6= 0-10V
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* 7= 0-5V
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* 8= 0-2V
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* 9= 0-1V
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* 10= user defined unipolar
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* [5] - 0, 5=D/A outputs 0-5V (internal reference -5V)
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* 1, 10=D/A outputs 0-10V (internal reference -10V)
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* 2=D/A outputs unknown (external reference)
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* [6] - 0, 60=max 60kHz A/D sampling
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* 1,100=max 100kHz A/D sampling (PCL-718 with Option 001 installed)
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*
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*/
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#include <linux/module.h>
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#include <linux/gfp.h>
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