| /* |
| comedi/drivers/adl_pci6208.c |
| |
| Hardware driver for ADLink 6208 series cards: |
| card | voltage output | current output |
| -------------+-------------------+--------------- |
| PCI-6208V | 8 channels | - |
| PCI-6216V | 16 channels | - |
| PCI-6208A | 8 channels | 8 channels |
| |
| COMEDI - Linux Control and Measurement Device Interface |
| Copyright (C) 2000 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: adl_pci6208 |
| Description: ADLink PCI-6208/6216 Series Multi-channel Analog Output Cards |
| Devices: (ADLink) PCI-6208 [adl_pci6208] |
| (ADLink) PCI-6216 [adl_pci6216] |
| Author: nsyeow <nsyeow@pd.jaring.my> |
| Updated: Fri, 30 Jan 2004 14:44:27 +0800 |
| Status: untested |
| |
| Configuration Options: not applicable, uses PCI auto config |
| |
| References: |
| - ni_660x.c |
| - adl_pci9111.c copied the entire pci setup section |
| - adl_pci9118.c |
| */ |
| |
| #include <linux/pci.h> |
| |
| #include "../comedidev.h" |
| |
| /* |
| * PCI-6208/6216-GL register map |
| */ |
| #define PCI6208_AO_CONTROL(x) (0x00 + (2 * (x))) |
| #define PCI6208_AO_STATUS 0x00 |
| #define PCI6208_AO_STATUS_DATA_SEND (1 << 0) |
| #define PCI6208_DIO 0x40 |
| #define PCI6208_DIO_DO_MASK (0x0f) |
| #define PCI6208_DIO_DO_SHIFT (0) |
| #define PCI6208_DIO_DI_MASK (0xf0) |
| #define PCI6208_DIO_DI_SHIFT (4) |
| |
| #define PCI6208_MAX_AO_CHANNELS 16 |
| |
| enum pci6208_boardid { |
| BOARD_PCI6208, |
| BOARD_PCI6216, |
| }; |
| |
| struct pci6208_board { |
| const char *name; |
| int ao_chans; |
| }; |
| |
| static const struct pci6208_board pci6208_boards[] = { |
| [BOARD_PCI6208] = { |
| .name = "adl_pci6208", |
| .ao_chans = 8, |
| }, |
| [BOARD_PCI6216] = { |
| .name = "adl_pci6216", |
| .ao_chans = 16, |
| }, |
| }; |
| |
| struct pci6208_private { |
| unsigned int ao_readback[PCI6208_MAX_AO_CHANNELS]; |
| }; |
| |
| static int pci6208_ao_winsn(struct comedi_device *dev, |
| struct comedi_subdevice *s, |
| struct comedi_insn *insn, unsigned int *data) |
| { |
| struct pci6208_private *devpriv = dev->private; |
| int chan = CR_CHAN(insn->chanspec); |
| unsigned long invert = 1 << (16 - 1); |
| unsigned long value = 0; |
| unsigned short status; |
| int i; |
| |
| for (i = 0; i < insn->n; i++) { |
| value = data[i] ^ invert; |
| |
| do { |
| status = inw(dev->iobase + PCI6208_AO_STATUS); |
| } while (status & PCI6208_AO_STATUS_DATA_SEND); |
| |
| outw(value, dev->iobase + PCI6208_AO_CONTROL(chan)); |
| } |
| devpriv->ao_readback[chan] = value; |
| |
| return insn->n; |
| } |
| |
| static int pci6208_ao_rinsn(struct comedi_device *dev, |
| struct comedi_subdevice *s, |
| struct comedi_insn *insn, unsigned int *data) |
| { |
| struct pci6208_private *devpriv = dev->private; |
| int chan = CR_CHAN(insn->chanspec); |
| int i; |
| |
| for (i = 0; i < insn->n; i++) |
| data[i] = devpriv->ao_readback[chan]; |
| |
| return insn->n; |
| } |
| |
| static int pci6208_di_insn_bits(struct comedi_device *dev, |
| struct comedi_subdevice *s, |
| struct comedi_insn *insn, |
| unsigned int *data) |
| { |
| unsigned int val; |
| |
| val = inw(dev->iobase + PCI6208_DIO); |
| val = (val & PCI6208_DIO_DI_MASK) >> PCI6208_DIO_DI_SHIFT; |
| |
| data[1] = val; |
| |
| return insn->n; |
| } |
| |
| static int pci6208_do_insn_bits(struct comedi_device *dev, |
| struct comedi_subdevice *s, |
| struct comedi_insn *insn, |
| unsigned int *data) |
| { |
| unsigned int mask = data[0]; |
| unsigned int bits = data[1]; |
| |
| if (mask) { |
| s->state &= ~mask; |
| s->state |= (bits & mask); |
| |
| outw(s->state, dev->iobase + PCI6208_DIO); |
| } |
| |
| data[1] = s->state; |
| |
| return insn->n; |
| } |
| |
| static int pci6208_auto_attach(struct comedi_device *dev, |
| unsigned long context) |
| { |
| struct pci_dev *pcidev = comedi_to_pci_dev(dev); |
| const struct pci6208_board *boardinfo = NULL; |
| struct pci6208_private *devpriv; |
| struct comedi_subdevice *s; |
| unsigned int val; |
| int ret; |
| |
| if (context < ARRAY_SIZE(pci6208_boards)) |
| boardinfo = &pci6208_boards[context]; |
| if (!boardinfo) |
| return -ENODEV; |
| dev->board_ptr = boardinfo; |
| dev->board_name = boardinfo->name; |
| |
| devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL); |
| if (!devpriv) |
| return -ENOMEM; |
| dev->private = devpriv; |
| |
| ret = comedi_pci_enable(dev); |
| if (ret) |
| return ret; |
| dev->iobase = pci_resource_start(pcidev, 2); |
| |
| ret = comedi_alloc_subdevices(dev, 3); |
| if (ret) |
| return ret; |
| |
| s = &dev->subdevices[0]; |
| /* analog output subdevice */ |
| s->type = COMEDI_SUBD_AO; |
| s->subdev_flags = SDF_WRITABLE; |
| s->n_chan = boardinfo->ao_chans; |
| s->maxdata = 0xffff; |
| s->range_table = &range_bipolar10; |
| s->insn_write = pci6208_ao_winsn; |
| s->insn_read = pci6208_ao_rinsn; |
| |
| s = &dev->subdevices[1]; |
| /* digital input subdevice */ |
| 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 = pci6208_di_insn_bits; |
| |
| s = &dev->subdevices[2]; |
| /* digital output subdevice */ |
| s->type = COMEDI_SUBD_DO; |
| s->subdev_flags = SDF_WRITABLE; |
| s->n_chan = 4; |
| s->maxdata = 1; |
| s->range_table = &range_digital; |
| s->insn_bits = pci6208_do_insn_bits; |
| |
| /* |
| * Get the read back signals from the digital outputs |
| * and save it as the initial state for the subdevice. |
| */ |
| val = inw(dev->iobase + PCI6208_DIO); |
| val = (val & PCI6208_DIO_DO_MASK) >> PCI6208_DIO_DO_SHIFT; |
| s->state = val; |
| s->io_bits = 0x0f; |
| |
| dev_info(dev->class_dev, "%s: %s, I/O base=0x%04lx\n", |
| dev->driver->driver_name, dev->board_name, dev->iobase); |
| |
| return 0; |
| } |
| |
| static struct comedi_driver adl_pci6208_driver = { |
| .driver_name = "adl_pci6208", |
| .module = THIS_MODULE, |
| .auto_attach = pci6208_auto_attach, |
| .detach = comedi_pci_disable, |
| }; |
| |
| static int adl_pci6208_pci_probe(struct pci_dev *dev, |
| const struct pci_device_id *id) |
| { |
| return comedi_pci_auto_config(dev, &adl_pci6208_driver, |
| id->driver_data); |
| } |
| |
| static DEFINE_PCI_DEVICE_TABLE(adl_pci6208_pci_table) = { |
| { PCI_VDEVICE(ADLINK, 0x6208), BOARD_PCI6208 }, |
| { PCI_VDEVICE(ADLINK, 0x6216), BOARD_PCI6216 }, |
| { 0 } |
| }; |
| MODULE_DEVICE_TABLE(pci, adl_pci6208_pci_table); |
| |
| static struct pci_driver adl_pci6208_pci_driver = { |
| .name = "adl_pci6208", |
| .id_table = adl_pci6208_pci_table, |
| .probe = adl_pci6208_pci_probe, |
| .remove = comedi_pci_auto_unconfig, |
| }; |
| module_comedi_pci_driver(adl_pci6208_driver, adl_pci6208_pci_driver); |
| |
| MODULE_AUTHOR("Comedi http://www.comedi.org"); |
| MODULE_DESCRIPTION("Comedi low-level driver"); |
| MODULE_LICENSE("GPL"); |