diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/adv_pci1720.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/adv_pci1720.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/drivers/staging/comedi/drivers/adv_pci1720.c b/drivers/staging/comedi/drivers/adv_pci1720.c deleted file mode 100644 index 2fcd7e8e7d85..000000000000 --- a/drivers/staging/comedi/drivers/adv_pci1720.c +++ /dev/null @@ -1,186 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * COMEDI driver for Advantech PCI-1720U - * Copyright (c) 2015 H Hartley Sweeten <hsweeten@visionengravers.com> - * - * Separated from the adv_pci1710 driver written by: - * Michal Dobes <dobes@tesnet.cz> - * - * COMEDI - Linux Control and Measurement Device Interface - * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - */ - -/* - * Driver: adv_pci1720 - * Description: 4-channel Isolated D/A Output board - * Devices: [Advantech] PCI-7120U (adv_pci1720) - * Author: H Hartley Sweeten <hsweeten@visionengravers.com> - * Updated: Fri, 29 Oct 2015 17:19:35 -0700 - * Status: untested - * - * Configuration options: not applicable, uses PCI auto config - * - * The PCI-1720 has 4 isolated 12-bit analog output channels with multiple - * output ranges. It also has a BoardID switch to allow differentiating - * multiple boards in the system. - * - * The analog outputs can operate in two modes, immediate and synchronized. - * This driver currently does not support the synchronized output mode. - * - * Jumpers JP1 to JP4 are used to set the current sink ranges for each - * analog output channel. In order to use the current sink ranges, the - * unipolar 5V range must be used. The voltage output and sink output for - * each channel is available on the connector as separate pins. - * - * Jumper JP5 controls the "hot" reset state of the analog outputs. - * Depending on its setting, the analog outputs will either keep the - * last settings and output values or reset to the default state after - * a "hot" reset. The default state for all channels is uniploar 5V range - * and all the output values are 0V. To allow this feature to work, the - * analog outputs are not "reset" when the driver attaches. - */ - -#include <linux/module.h> -#include <linux/delay.h> - -#include "../comedi_pci.h" - -/* - * PCI BAR2 Register map (dev->iobase) - */ -#define PCI1720_AO_LSB_REG(x) (0x00 + ((x) * 2)) -#define PCI1720_AO_MSB_REG(x) (0x01 + ((x) * 2)) -#define PCI1720_AO_RANGE_REG 0x08 -#define PCI1720_AO_RANGE(c, r) (((r) & 0x3) << ((c) * 2)) -#define PCI1720_AO_RANGE_MASK(c) PCI1720_AO_RANGE((c), 0x3) -#define PCI1720_SYNC_REG 0x09 -#define PCI1720_SYNC_CTRL_REG 0x0f -#define PCI1720_SYNC_CTRL_SC0 BIT(0) -#define PCI1720_BOARDID_REG 0x14 - -static const struct comedi_lrange pci1720_ao_range = { - 4, { - UNI_RANGE(5), - UNI_RANGE(10), - BIP_RANGE(5), - BIP_RANGE(10) - } -}; - -static int pci1720_ao_insn_write(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - unsigned int chan = CR_CHAN(insn->chanspec); - unsigned int range = CR_RANGE(insn->chanspec); - unsigned int val; - int i; - - /* set the channel range and polarity */ - val = inb(dev->iobase + PCI1720_AO_RANGE_REG); - val &= ~PCI1720_AO_RANGE_MASK(chan); - val |= PCI1720_AO_RANGE(chan, range); - outb(val, dev->iobase + PCI1720_AO_RANGE_REG); - - val = s->readback[chan]; - for (i = 0; i < insn->n; i++) { - val = data[i]; - - outb(val & 0xff, dev->iobase + PCI1720_AO_LSB_REG(chan)); - outb((val >> 8) & 0xff, dev->iobase + PCI1720_AO_MSB_REG(chan)); - - /* conversion time is 2us (500 kHz throughput) */ - usleep_range(2, 100); - } - - s->readback[chan] = val; - - return insn->n; -} - -static int pci1720_di_insn_bits(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - data[1] = inb(dev->iobase + PCI1720_BOARDID_REG); - - return insn->n; -} - -static int pci1720_auto_attach(struct comedi_device *dev, - unsigned long context) -{ - struct pci_dev *pcidev = comedi_to_pci_dev(dev); - struct comedi_subdevice *s; - int ret; - - ret = comedi_pci_enable(dev); - if (ret) - return ret; - dev->iobase = pci_resource_start(pcidev, 2); - - ret = comedi_alloc_subdevices(dev, 2); - if (ret) - return ret; - - /* Analog Output subdevice */ - s = &dev->subdevices[0]; - s->type = COMEDI_SUBD_AO; - s->subdev_flags = SDF_WRITABLE; - s->n_chan = 4; - s->maxdata = 0x0fff; - s->range_table = &pci1720_ao_range; - s->insn_write = pci1720_ao_insn_write; - - ret = comedi_alloc_subdev_readback(s); - if (ret) - return ret; - - /* Digital Input subdevice (BoardID SW1) */ - s = &dev->subdevices[1]; - s->type = COMEDI_SUBD_DI; - s->subdev_flags = SDF_READABLE; - s->n_chan = 4; - s->maxdata = 1; - s->range_table = &range_digital; - s->insn_bits = pci1720_di_insn_bits; - - /* disable synchronized output, channels update when written */ - outb(0, dev->iobase + PCI1720_SYNC_CTRL_REG); - - return 0; -} - -static struct comedi_driver adv_pci1720_driver = { - .driver_name = "adv_pci1720", - .module = THIS_MODULE, - .auto_attach = pci1720_auto_attach, - .detach = comedi_pci_detach, -}; - -static int adv_pci1720_pci_probe(struct pci_dev *dev, - const struct pci_device_id *id) -{ - return comedi_pci_auto_config(dev, &adv_pci1720_driver, - id->driver_data); -} - -static const struct pci_device_id adv_pci1720_pci_table[] = { - { PCI_DEVICE(PCI_VENDOR_ID_ADVANTECH, 0x1720) }, - { 0 } -}; -MODULE_DEVICE_TABLE(pci, adv_pci1720_pci_table); - -static struct pci_driver adv_pci1720_pci_driver = { - .name = "adv_pci1720", - .id_table = adv_pci1720_pci_table, - .probe = adv_pci1720_pci_probe, - .remove = comedi_pci_auto_unconfig, -}; -module_comedi_pci_driver(adv_pci1720_driver, adv_pci1720_pci_driver); - -MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>"); -MODULE_DESCRIPTION("Comedi driver for Advantech PCI-1720 Analog Output board"); -MODULE_LICENSE("GPL"); |