diff options
Diffstat (limited to 'drivers/comedi/drivers/adl_pci8164.c')
| -rw-r--r-- | drivers/comedi/drivers/adl_pci8164.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/drivers/comedi/drivers/adl_pci8164.c b/drivers/comedi/drivers/adl_pci8164.c new file mode 100644 index 000000000000..d5e1bda81557 --- /dev/null +++ b/drivers/comedi/drivers/adl_pci8164.c @@ -0,0 +1,154 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * comedi/drivers/adl_pci8164.c + * + * Hardware comedi driver for PCI-8164 Adlink card + * Copyright (C) 2004 Michel Lachine <mike@mikelachaine.ca> + */ + +/* + * Driver: adl_pci8164 + * Description: Driver for the Adlink PCI-8164 4 Axes Motion Control board + * Devices: [ADLink] PCI-8164 (adl_pci8164) + * Author: Michel Lachaine <mike@mikelachaine.ca> + * Status: experimental + * Updated: Mon, 14 Apr 2008 15:10:32 +0100 + * + * Configuration Options: not applicable, uses PCI auto config + */ + +#include <linux/kernel.h> +#include <linux/module.h> + +#include "../comedi_pci.h" + +#define PCI8164_AXIS(x) ((x) * 0x08) +#define PCI8164_CMD_MSTS_REG 0x00 +#define PCI8164_OTP_SSTS_REG 0x02 +#define PCI8164_BUF0_REG 0x04 +#define PCI8164_BUF1_REG 0x06 + +static int adl_pci8164_insn_read(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + unsigned long offset = (unsigned long)s->private; + unsigned int chan = CR_CHAN(insn->chanspec); + int i; + + for (i = 0; i < insn->n; i++) + data[i] = inw(dev->iobase + PCI8164_AXIS(chan) + offset); + + return insn->n; +} + +static int adl_pci8164_insn_write(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + unsigned long offset = (unsigned long)s->private; + unsigned int chan = CR_CHAN(insn->chanspec); + int i; + + for (i = 0; i < insn->n; i++) + outw(data[i], dev->iobase + PCI8164_AXIS(chan) + offset); + + return insn->n; +} + +static int adl_pci8164_auto_attach(struct comedi_device *dev, + unsigned long context_unused) +{ + 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, 4); + if (ret) + return ret; + + /* read MSTS register / write CMD register for each axis (channel) */ + s = &dev->subdevices[0]; + s->type = COMEDI_SUBD_PROC; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE; + s->n_chan = 4; + s->maxdata = 0xffff; + s->len_chanlist = 4; + s->insn_read = adl_pci8164_insn_read; + s->insn_write = adl_pci8164_insn_write; + s->private = (void *)PCI8164_CMD_MSTS_REG; + + /* read SSTS register / write OTP register for each axis (channel) */ + s = &dev->subdevices[1]; + s->type = COMEDI_SUBD_PROC; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE; + s->n_chan = 4; + s->maxdata = 0xffff; + s->len_chanlist = 4; + s->insn_read = adl_pci8164_insn_read; + s->insn_write = adl_pci8164_insn_write; + s->private = (void *)PCI8164_OTP_SSTS_REG; + + /* read/write BUF0 register for each axis (channel) */ + s = &dev->subdevices[2]; + s->type = COMEDI_SUBD_PROC; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE; + s->n_chan = 4; + s->maxdata = 0xffff; + s->len_chanlist = 4; + s->insn_read = adl_pci8164_insn_read; + s->insn_write = adl_pci8164_insn_write; + s->private = (void *)PCI8164_BUF0_REG; + + /* read/write BUF1 register for each axis (channel) */ + s = &dev->subdevices[3]; + s->type = COMEDI_SUBD_PROC; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE; + s->n_chan = 4; + s->maxdata = 0xffff; + s->len_chanlist = 4; + s->insn_read = adl_pci8164_insn_read; + s->insn_write = adl_pci8164_insn_write; + s->private = (void *)PCI8164_BUF1_REG; + + return 0; +} + +static struct comedi_driver adl_pci8164_driver = { + .driver_name = "adl_pci8164", + .module = THIS_MODULE, + .auto_attach = adl_pci8164_auto_attach, + .detach = comedi_pci_detach, +}; + +static int adl_pci8164_pci_probe(struct pci_dev *dev, + const struct pci_device_id *id) +{ + return comedi_pci_auto_config(dev, &adl_pci8164_driver, + id->driver_data); +} + +static const struct pci_device_id adl_pci8164_pci_table[] = { + { PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x8164) }, + { 0 } +}; +MODULE_DEVICE_TABLE(pci, adl_pci8164_pci_table); + +static struct pci_driver adl_pci8164_pci_driver = { + .name = "adl_pci8164", + .id_table = adl_pci8164_pci_table, + .probe = adl_pci8164_pci_probe, + .remove = comedi_pci_auto_unconfig, +}; +module_comedi_pci_driver(adl_pci8164_driver, adl_pci8164_pci_driver); + +MODULE_AUTHOR("Comedi https://www.comedi.org"); +MODULE_DESCRIPTION("Comedi low-level driver"); +MODULE_LICENSE("GPL"); |