diff options
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_670x.c | 334 |
1 files changed, 334 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c new file mode 100644 index 00000000000..f622e340e1a --- /dev/null +++ b/drivers/staging/comedi/drivers/ni_670x.c @@ -0,0 +1,334 @@ +/* + comedi/drivers/ni_670x.c + Hardware driver for NI 670x devices + + COMEDI - Linux Control and Measurement Device Interface + Copyright (C) 1997-2001 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. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ +/* +Driver: ni_670x +Description: National Instruments 670x +Author: Bart Joris <bjoris@advalvas.be> +Updated: Wed, 11 Dec 2002 18:25:35 -0800 +Devices: [National Instruments] PCI-6703 (ni_670x), PCI-6704 +Status: unknown + +Commands are not supported. +*/ + +/* + Bart Joris <bjoris@advalvas.be> Last updated on 20/08/2001 + + Manuals: + + 322110a.pdf PCI/PXI-6704 User Manual + 322110b.pdf PCI/PXI-6703/6704 User Manual + +*/ + +#include "../comedidev.h" + +#include "mite.h" + +#define PCI_VENDOR_ID_NATINST 0x1093 + +#define AO_VALUE_OFFSET 0x00 +#define AO_CHAN_OFFSET 0x0c +#define AO_STATUS_OFFSET 0x10 +#define AO_CONTROL_OFFSET 0x10 +#define DIO_PORT0_DIR_OFFSET 0x20 +#define DIO_PORT0_DATA_OFFSET 0x24 +#define DIO_PORT1_DIR_OFFSET 0x28 +#define DIO_PORT1_DATA_OFFSET 0x2c +#define MISC_STATUS_OFFSET 0x14 +#define MISC_CONTROL_OFFSET 0x14 + +/* Board description*/ + +typedef struct ni_670x_board_struct { + unsigned short dev_id; + const char *name; + unsigned short ao_chans; + unsigned short ao_bits; +} ni_670x_board; +static const ni_670x_board ni_670x_boards[] = { + { + dev_id: 0x2c90, + name: "PCI-6703", + ao_chans:16, + ao_bits: 16, + }, + { + dev_id: 0x1920, + name: "PXI-6704", + ao_chans:32, + ao_bits: 16, + }, + { + dev_id: 0x1290, + name: "PCI-6704", + ao_chans:32, + ao_bits: 16, + }, +}; + +static DEFINE_PCI_DEVICE_TABLE(ni_670x_pci_table) = { + {PCI_VENDOR_ID_NATINST, 0x2c90, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VENDOR_ID_NATINST, 0x1920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + //{ PCI_VENDOR_ID_NATINST, 0x0000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + {0} +}; + +MODULE_DEVICE_TABLE(pci, ni_670x_pci_table); + +#define thisboard ((ni_670x_board *)dev->board_ptr) + +typedef struct { + struct mite_struct *mite; + int boardtype; + int dio; + lsampl_t ao_readback[32]; +} ni_670x_private; + +#define devpriv ((ni_670x_private *)dev->private) +#define n_ni_670x_boards (sizeof(ni_670x_boards)/sizeof(ni_670x_boards[0])) + +static int ni_670x_attach(comedi_device * dev, comedi_devconfig * it); +static int ni_670x_detach(comedi_device * dev); + +static comedi_driver driver_ni_670x = { + driver_name:"ni_670x", + module:THIS_MODULE, + attach:ni_670x_attach, + detach:ni_670x_detach, +}; + +COMEDI_PCI_INITCLEANUP(driver_ni_670x, ni_670x_pci_table); + +static comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} }; + +static int ni_670x_find_device(comedi_device * dev, int bus, int slot); + +static int ni_670x_ao_winsn(comedi_device * dev, comedi_subdevice * s, + comedi_insn * insn, lsampl_t * data); +static int ni_670x_ao_rinsn(comedi_device * dev, comedi_subdevice * s, + comedi_insn * insn, lsampl_t * data); +static int ni_670x_dio_insn_bits(comedi_device * dev, comedi_subdevice * s, + comedi_insn * insn, lsampl_t * data); +static int ni_670x_dio_insn_config(comedi_device * dev, comedi_subdevice * s, + comedi_insn * insn, lsampl_t * data); + +static int ni_670x_attach(comedi_device * dev, comedi_devconfig * it) +{ + comedi_subdevice *s; + int ret; + int i; + + printk("comedi%d: ni_670x: ", dev->minor); + + if ((ret = alloc_private(dev, sizeof(ni_670x_private))) < 0) + return ret; + + ret = ni_670x_find_device(dev, it->options[0], it->options[1]); + if (ret < 0) + return ret; + + ret = mite_setup(devpriv->mite); + if (ret < 0) { + printk("error setting up mite\n"); + return ret; + } + dev->board_name = thisboard->name; + dev->irq = mite_irq(devpriv->mite); + printk(" %s", dev->board_name); + + if (alloc_subdevices(dev, 2) < 0) + return -ENOMEM; + + s = dev->subdevices + 0; + /* analog output subdevice */ + s->type = COMEDI_SUBD_AO; + s->subdev_flags = SDF_WRITABLE; + s->n_chan = thisboard->ao_chans; + s->maxdata = 0xffff; + if (s->n_chan == 32) { + const comedi_lrange **range_table_list; + + range_table_list = kmalloc(sizeof(comedi_lrange *) * 32, + GFP_KERNEL); + if (!range_table_list) + return -ENOMEM; + s->range_table_list = range_table_list; + for (i = 0; i < 16; i++) { + range_table_list[i] = &range_bipolar10; + range_table_list[16 + i] = &range_0_20mA; + } + } else { + s->range_table = &range_bipolar10; + } + s->insn_write = &ni_670x_ao_winsn; + s->insn_read = &ni_670x_ao_rinsn; + + s = dev->subdevices + 1; + /* digital i/o subdevice */ + s->type = COMEDI_SUBD_DIO; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE; + s->n_chan = 8; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = ni_670x_dio_insn_bits; + s->insn_config = ni_670x_dio_insn_config; + + writel(0x10, devpriv->mite->daq_io_addr + MISC_CONTROL_OFFSET); /* Config of misc registers */ + writel(0x00, devpriv->mite->daq_io_addr + AO_CONTROL_OFFSET); /* Config of ao registers */ + + printk("attached\n"); + + return 1; +} + +static int ni_670x_detach(comedi_device * dev) +{ + printk("comedi%d: ni_670x: remove\n", dev->minor); + + if (dev->subdevices[0].range_table_list) { + kfree(dev->subdevices[0].range_table_list); + } + if (dev->private && devpriv->mite) + mite_unsetup(devpriv->mite); + + if (dev->irq) + comedi_free_irq(dev->irq, dev); + + return 0; +} + +static int ni_670x_ao_winsn(comedi_device * dev, comedi_subdevice * s, + comedi_insn * insn, lsampl_t * data) +{ + int i; + int chan = CR_CHAN(insn->chanspec); + + /* Channel number mapping : + + NI 6703/ NI 6704 | NI 6704 Only + ---------------------------------------------------- + vch(0) : 0 | ich(16) : 1 + vch(1) : 2 | ich(17) : 3 + . : . | . . + . : . | . . + . : . | . . + vch(15) : 30 | ich(31) : 31 */ + + for (i = 0; i < insn->n; i++) { + writel(((chan & 15) << 1) | ((chan & 16) >> 4), devpriv->mite->daq_io_addr + AO_CHAN_OFFSET); /* First write in channel register which channel to use */ + writel(data[i], devpriv->mite->daq_io_addr + AO_VALUE_OFFSET); /* write channel value */ + devpriv->ao_readback[chan] = data[i]; + } + + return i; +} + +static int ni_670x_ao_rinsn(comedi_device * dev, comedi_subdevice * s, + comedi_insn * insn, lsampl_t * data) +{ + int i; + int chan = CR_CHAN(insn->chanspec); + + for (i = 0; i < insn->n; i++) + data[i] = devpriv->ao_readback[chan]; + + return i; +} + +static int ni_670x_dio_insn_bits(comedi_device * dev, comedi_subdevice * s, + comedi_insn * insn, lsampl_t * data) +{ + if (insn->n != 2) + return -EINVAL; + + /* The insn data is a mask in data[0] and the new data + * in data[1], each channel cooresponding to a bit. */ + if (data[0]) { + s->state &= ~data[0]; + s->state |= data[0] & data[1]; + writel(s->state, + devpriv->mite->daq_io_addr + DIO_PORT0_DATA_OFFSET); + } + + /* on return, data[1] contains the value of the digital + * input lines. */ + data[1] = readl(devpriv->mite->daq_io_addr + DIO_PORT0_DATA_OFFSET); + + return 2; +} + +static int ni_670x_dio_insn_config(comedi_device * dev, comedi_subdevice * s, + comedi_insn * insn, lsampl_t * data) +{ + int chan = CR_CHAN(insn->chanspec); + + switch (data[0]) { + case INSN_CONFIG_DIO_OUTPUT: + s->io_bits |= 1 << chan; + break; + case INSN_CONFIG_DIO_INPUT: + s->io_bits &= ~(1 << chan); + break; + case INSN_CONFIG_DIO_QUERY: + data[1] = + (s-> + io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT; + return insn->n; + break; + default: + return -EINVAL; + break; + } + writel(s->io_bits, devpriv->mite->daq_io_addr + DIO_PORT0_DIR_OFFSET); + + return insn->n; +} + +static int ni_670x_find_device(comedi_device * dev, int bus, int slot) +{ + struct mite_struct *mite; + int i; + + for (mite = mite_devices; mite; mite = mite->next) { + if (mite->used) + continue; + if (bus || slot) { + if (bus != mite->pcidev->bus->number + || slot != PCI_SLOT(mite->pcidev->devfn)) + continue; + } + + for (i = 0; i < n_ni_670x_boards; i++) { + if (mite_device_id(mite) == ni_670x_boards[i].dev_id) { + dev->board_ptr = ni_670x_boards + i; + devpriv->mite = mite; + + return 0; + } + } + } + printk("no device found\n"); + mite_list_devices(); + return -EIO; +} |