diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/poc.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/poc.c | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/drivers/staging/comedi/drivers/poc.c b/drivers/staging/comedi/drivers/poc.c deleted file mode 100644 index 2ae4ee15704c..000000000000 --- a/drivers/staging/comedi/drivers/poc.c +++ /dev/null @@ -1,157 +0,0 @@ -/* - comedi/drivers/poc.c - Mini-drivers for POC (Piece of Crap) boards - Copyright (C) 2000 Frank Mori Hess <fmhess@users.sourceforge.net> - Copyright (C) 2001 David A. Schleef <ds@schleef.org> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ -/* -Driver: poc -Description: Generic driver for very simple devices -Author: ds -Devices: [Keithley Metrabyte] DAC-02 (dac02) -Updated: Sat, 16 Mar 2002 17:34:48 -0800 -Status: unknown - -This driver is indended to support very simple ISA-based devices, -including: - dac02 - Keithley DAC-02 analog output board - -Configuration options: - [0] - I/O port base -*/ - -#include <linux/module.h> -#include "../comedidev.h" - -struct boarddef_struct { - const char *name; - unsigned int iosize; - int (*setup) (struct comedi_device *); - int type; - int n_chan; - int n_bits; - int (*winsn) (struct comedi_device *, struct comedi_subdevice *, - struct comedi_insn *, unsigned int *); - int (*rinsn) (struct comedi_device *, struct comedi_subdevice *, - struct comedi_insn *, unsigned int *); - int (*insnbits) (struct comedi_device *, struct comedi_subdevice *, - struct comedi_insn *, unsigned int *); - const struct comedi_lrange *range; -}; - -struct poc_private { - unsigned int ao_readback[32]; -}; - -static int readback_insn(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) -{ - struct poc_private *devpriv = dev->private; - int chan; - - chan = CR_CHAN(insn->chanspec); - data[0] = devpriv->ao_readback[chan]; - - return 1; -} - -/* DAC-02 registers */ -#define DAC02_LSB(a) (2 * a) -#define DAC02_MSB(a) (2 * a + 1) - -static int dac02_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) -{ - struct poc_private *devpriv = dev->private; - int temp; - int chan; - int output; - - chan = CR_CHAN(insn->chanspec); - devpriv->ao_readback[chan] = data[0]; - output = data[0]; -#ifdef wrong - /* convert to complementary binary if range is bipolar */ - if ((CR_RANGE(insn->chanspec) & 0x2) == 0) - output = ~output; -#endif - temp = (output << 4) & 0xf0; - outb(temp, dev->iobase + DAC02_LSB(chan)); - temp = (output >> 4) & 0xff; - outb(temp, dev->iobase + DAC02_MSB(chan)); - - return 1; -} - -static int poc_attach(struct comedi_device *dev, struct comedi_devconfig *it) -{ - const struct boarddef_struct *board = comedi_board(dev); - struct poc_private *devpriv; - struct comedi_subdevice *s; - int ret; - - ret = comedi_request_region(dev, it->options[0], board->iosize); - if (ret) - return ret; - - ret = comedi_alloc_subdevices(dev, 1); - if (ret) - return ret; - - devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv)); - if (!devpriv) - return -ENOMEM; - - /* analog output subdevice */ - s = &dev->subdevices[0]; - s->type = board->type; - s->n_chan = board->n_chan; - s->maxdata = (1 << board->n_bits) - 1; - s->range_table = board->range; - s->insn_write = board->winsn; - s->insn_read = board->rinsn; - s->insn_bits = board->insnbits; - if (s->type == COMEDI_SUBD_AO || s->type == COMEDI_SUBD_DO) - s->subdev_flags = SDF_WRITABLE; - - return 0; -} - -static const struct boarddef_struct boards[] = { - { - .name = "dac02", - .iosize = 8, - /* .setup = dac02_setup, */ - .type = COMEDI_SUBD_AO, - .n_chan = 2, - .n_bits = 12, - .winsn = dac02_ao_winsn, - .rinsn = readback_insn, - .range = &range_unknown, - }, -}; - -static struct comedi_driver poc_driver = { - .driver_name = "poc", - .module = THIS_MODULE, - .attach = poc_attach, - .detach = comedi_legacy_detach, - .board_name = &boards[0].name, - .num_names = ARRAY_SIZE(boards), - .offset = sizeof(boards[0]), -}; -module_comedi_driver(poc_driver); - -MODULE_AUTHOR("Comedi http://www.comedi.org"); -MODULE_DESCRIPTION("Comedi low-level driver"); -MODULE_LICENSE("GPL"); |