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| author |   H Hartley Sweeten <hsweeten@visionengravers.com> | 2015-08-05 10:44:46 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-07 15:03:28 -0700 |
| commit | aed9b66316d2c6eb22c2a80a8af4d1f7beffe309 (patch) | |
| tree | de94af9e04d03e5e16ec82886ce485d0c0f877ed /drivers/staging/comedi/drivers/me4000.c | |
| parent | staging: comedi: me4000: refactor 'ai_diff_nchan' boardinfo (diff) | |
| download | linux-dev-aed9b66316d2c6eb22c2a80a8af4d1f7beffe309.tar.xz linux-dev-aed9b66316d2c6eb22c2a80a8af4d1f7beffe309.zip | |
staging: comedi: me4000: refactor 'ao_nchan' boardinfo
For the boards that have analog output capability, there are always
4 analog output channels. Convert the 'ao_nchan' member of the boardinfo
into a bit-field, 'has_ao', to save a bit of space and set the analog
output subdevice 'n_chan' to 4 when supported.
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/staging/comedi/drivers/me4000.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/me4000.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c index 7eade91a04f6..2f11cdd3eefb 100644 --- a/drivers/staging/comedi/drivers/me4000.c +++ b/drivers/staging/comedi/drivers/me4000.c @@ -188,12 +188,12 @@ enum me4000_boardid { struct me4000_board { const char *name; - int ao_nchan; int ao_fifo; int ai_nchan; int ai_sh_nchan; unsigned int can_do_diff_ai:1; unsigned int ex_trig_analog:1; + unsigned int has_ao:1; unsigned int has_counter:1; }; @@ -230,74 +230,74 @@ static const struct me4000_board me4000_boards[] = { }, [BOARD_ME4670] = { .name = "ME-4670", - .ao_nchan = 4, .ai_nchan = 32, .can_do_diff_ai = 1, .ex_trig_analog = 1, + .has_ao = 1, .has_counter = 1, }, [BOARD_ME4670I] = { .name = "ME-4670i", - .ao_nchan = 4, .ai_nchan = 32, .can_do_diff_ai = 1, .ex_trig_analog = 1, + .has_ao = 1, .has_counter = 1, }, [BOARD_ME4670S] = { .name = "ME-4670s", - .ao_nchan = 4, .ai_nchan = 32, .ai_sh_nchan = 8, .can_do_diff_ai = 1, .ex_trig_analog = 1, + .has_ao = 1, .has_counter = 1, }, [BOARD_ME4670IS] = { .name = "ME-4670is", - .ao_nchan = 4, .ai_nchan = 32, .ai_sh_nchan = 8, .can_do_diff_ai = 1, .ex_trig_analog = 1, + .has_ao = 1, .has_counter = 1, }, [BOARD_ME4680] = { .name = "ME-4680", - .ao_nchan = 4, .ao_fifo = 4, .ai_nchan = 32, .can_do_diff_ai = 1, .ex_trig_analog = 1, + .has_ao = 1, .has_counter = 1, }, [BOARD_ME4680I] = { .name = "ME-4680i", - .ao_nchan = 4, .ao_fifo = 4, .ai_nchan = 32, .can_do_diff_ai = 1, .ex_trig_analog = 1, + .has_ao = 1, .has_counter = 1, }, [BOARD_ME4680S] = { .name = "ME-4680s", - .ao_nchan = 4, .ao_fifo = 4, .ai_nchan = 32, .ai_sh_nchan = 8, .can_do_diff_ai = 1, .ex_trig_analog = 1, + .has_ao = 1, .has_counter = 1, }, [BOARD_ME4680IS] = { .name = "ME-4680is", - .ao_nchan = 4, .ao_fifo = 4, .ai_nchan = 32, .ai_sh_nchan = 8, .can_do_diff_ai = 1, .ex_trig_analog = 1, + .has_ao = 1, .has_counter = 1, }, }; @@ -1312,10 +1312,10 @@ static int me4000_auto_attach(struct comedi_device *dev, s = &dev->subdevices[1]; - if (board->ao_nchan) { + if (board->has_ao) { s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_WRITABLE | SDF_COMMON | SDF_GROUND; - s->n_chan = board->ao_nchan; + s->n_chan = 4; s->maxdata = 0xFFFF; /* 16 bit DAC */ s->range_table = &range_bipolar10; s->insn_write = me4000_ao_insn_write; |