mirror of
https://github.com/torvalds/linux.git
synced 2024-11-17 17:41:44 +00:00
Staging: comedi: add adv_pci1723 driver
driver for Advantech PCI-1723 device From: Ian Abbott <abbotti@mev.co.uk> Cc: David Schleef <ds@schleef.org> Cc: Frank Mori Hess <fmhess@users.sourceforge.net> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Ian Abbott
Greg Kroah-Hartman
parent
9a47b74a6f
commit
011f01bf93
465
drivers/staging/comedi/drivers/adv_pci1723.c
Normal file
465
drivers/staging/comedi/drivers/adv_pci1723.c
Normal file
@ -0,0 +1,465 @@
|
||||
/*******************************************************************************
|
||||
comedi/drivers/pci1723.c
|
||||
|
||||
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.
|
||||
|
||||
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: adv_pci1723
|
||||
Description: Advantech PCI-1723
|
||||
Author: yonggang <rsmgnu@gmail.com>, Ian Abbott <abbotti@mev.co.uk>
|
||||
Devices: [Advantech] PCI-1723 (adv_pci1723)
|
||||
Updated: Mon, 14 Apr 2008 15:12:56 +0100
|
||||
Status: works
|
||||
|
||||
Configuration Options:
|
||||
[0] - PCI bus of device (optional)
|
||||
[1] - PCI slot of device (optional)
|
||||
|
||||
If bus/slot is not specified, the first supported
|
||||
PCI device found will be used.
|
||||
|
||||
Subdevice 0 is 8-channel AO, 16-bit, range +/- 10 V.
|
||||
|
||||
Subdevice 1 is 16-channel DIO. The channels are configurable as input or
|
||||
output in 2 groups (0 to 7, 8 to 15). Configuring any channel implicitly
|
||||
configures all channels in the same group.
|
||||
|
||||
TODO:
|
||||
|
||||
1. Add the two milliamp ranges to the AO subdevice (0 to 20 mA, 4 to 20 mA).
|
||||
2. Read the initial ranges and values of the AO subdevice at start-up instead
|
||||
of reinitializing them.
|
||||
3. Implement calibration.
|
||||
*/
|
||||
|
||||
#include "../comedidev.h"
|
||||
|
||||
#include "comedi_pci.h"
|
||||
|
||||
#define ADVANTECH_VENDOR 0x13fe /* Advantech PCI vendor ID */
|
||||
|
||||
// hardware types of the cards
|
||||
#define TYPE_PCI1723 0
|
||||
|
||||
#define IORANGE_1723 0x2A
|
||||
|
||||
/* all the registers for the pci1723 board */
|
||||
#define PCI1723_DA(N) ((N)<<1) /* W: D/A register N (0 to 7) */
|
||||
|
||||
#define PCI1723_SYN_SET 0x12 /*synchronized set register */
|
||||
#define PCI1723_ALL_CHNNELE_SYN_STROBE 0x12 /*synchronized status register */
|
||||
|
||||
#define PCI1723_RANGE_CALIBRATION_MODE 0x14 /* range and calibration mode */
|
||||
#define PCI1723_RANGE_CALIBRATION_STATUS 0x14 /* range and calibration status */
|
||||
|
||||
#define PCI1723_CONTROL_CMD_CALIBRATION_FUN 0x16 /* SADC control command for calibration function */
|
||||
#define PCI1723_STATUS_CMD_CALIBRATION_FUN 0x16 /* SADC control status for calibration function */
|
||||
|
||||
#define PCI1723_CALIBRATION_PARA_STROBE 0x18 /* Calibration parameter strobe */
|
||||
|
||||
#define PCI1723_DIGITAL_IO_PORT_SET 0x1A /* Digital I/O port setting */
|
||||
#define PCI1723_DIGITAL_IO_PORT_MODE 0x1A /* Digital I/O port mode */
|
||||
|
||||
#define PCI1723_WRITE_DIGITAL_OUTPUT_CMD 0x1C /* Write digital output command */
|
||||
#define PCI1723_READ_DIGITAL_INPUT_DATA 0x1C /* Read digital input data */
|
||||
|
||||
#define PCI1723_WRITE_CAL_CMD 0x1E /* Write calibration command */
|
||||
#define PCI1723_READ_CAL_STATUS 0x1E /* Read calibration status */
|
||||
|
||||
#define PCI1723_SYN_STROBE 0x20 /* Synchronized strobe */
|
||||
|
||||
#define PCI1723_RESET_ALL_CHN_STROBE 0x22 /* Reset all D/A channels strobe */
|
||||
|
||||
#define PCI1723_RESET_CAL_CONTROL_STROBE 0x24 /* Reset the calibration controller strobe */
|
||||
|
||||
#define PCI1723_CHANGE_CHA_OUTPUT_TYPE_STROBE 0x26 /* Change D/A channels output type strobe */
|
||||
|
||||
#define PCI1723_SELECT_CALIBRATION 0x28 /* Select the calibration Ref_V */
|
||||
|
||||
//static unsigned short pci_list_builded=0; /*=1 list of card is know */
|
||||
|
||||
static const comedi_lrange range_pci1723 = { 1, {
|
||||
BIP_RANGE(10)
|
||||
}
|
||||
};
|
||||
|
||||
/*
|
||||
* Board descriptions for pci1723 boards.
|
||||
*/
|
||||
typedef struct pci1723_board_struct {
|
||||
const char *name;
|
||||
int vendor_id; // PCI vendor a device ID of card
|
||||
int device_id;
|
||||
int iorange;
|
||||
char cardtype;
|
||||
int n_aochan; // num of D/A chans
|
||||
int n_diochan; // num of DIO chans
|
||||
int ao_maxdata; // resolution of D/A
|
||||
const comedi_lrange *rangelist_ao; // rangelist for D/A
|
||||
} boardtype;
|
||||
|
||||
static const boardtype boardtypes[] = {
|
||||
{
|
||||
name: "pci1723",
|
||||
vendor_id:ADVANTECH_VENDOR,
|
||||
device_id:0x1723,
|
||||
iorange: IORANGE_1723,
|
||||
cardtype:TYPE_PCI1723,
|
||||
n_aochan:8,
|
||||
n_diochan:16,
|
||||
ao_maxdata:0xffff,
|
||||
rangelist_ao:&range_pci1723,
|
||||
},
|
||||
};
|
||||
|
||||
/* This is used by modprobe to translate PCI IDs to drivers. Should
|
||||
* only be used for PCI and ISA-PnP devices */
|
||||
static DEFINE_PCI_DEVICE_TABLE(pci1723_pci_table) = {
|
||||
{PCI_VENDOR_ID_ADVANTECH, 0x1723, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
||||
{0}
|
||||
};
|
||||
|
||||
MODULE_DEVICE_TABLE(pci, pci1723_pci_table);
|
||||
|
||||
/*
|
||||
* The comedi_driver structure tells the Comedi core module
|
||||
* which functions to call to configure/deconfigure (attach/detach)
|
||||
* the board, and also about the kernel module that contains
|
||||
* the device code.
|
||||
*/
|
||||
static int pci1723_attach(comedi_device * dev, comedi_devconfig * it);
|
||||
static int pci1723_detach(comedi_device * dev);
|
||||
|
||||
#define n_boardtypes (sizeof(boardtypes)/sizeof(boardtype))
|
||||
|
||||
static comedi_driver driver_pci1723 = {
|
||||
driver_name:"adv_pci1723",
|
||||
module:THIS_MODULE,
|
||||
attach:pci1723_attach,
|
||||
detach:pci1723_detach,
|
||||
};
|
||||
|
||||
/* this structure is for data unique to this hardware driver. */
|
||||
typedef struct {
|
||||
int valid; //card is usable;
|
||||
|
||||
struct pci_dev *pcidev;
|
||||
unsigned char da_range[8]; // D/A output range for each channel
|
||||
|
||||
sampl_t ao_data[8]; // data output buffer
|
||||
} pci1723_private;
|
||||
|
||||
/*the following macro to make it easy to
|
||||
* access the private structure.
|
||||
*/
|
||||
#define devpriv ((pci1723_private *)dev->private)
|
||||
|
||||
#define this_board boardtypes
|
||||
|
||||
/*
|
||||
* the pci1723 card reset;
|
||||
*/
|
||||
static int pci1723_reset(comedi_device * dev)
|
||||
{
|
||||
int i;
|
||||
DPRINTK("adv_pci1723 EDBG: BGN: pci1723_reset(...)\n");
|
||||
|
||||
outw(0x01, dev->iobase + PCI1723_SYN_SET); // set synchronous output mode
|
||||
|
||||
for (i = 0; i < 8; i++) {
|
||||
// set all outputs to 0V
|
||||
devpriv->ao_data[i] = 0x8000;
|
||||
outw(devpriv->ao_data[i], dev->iobase + PCI1723_DA(i));
|
||||
// set all ranges to +/- 10V
|
||||
devpriv->da_range[i] = 0;
|
||||
outw(((devpriv->da_range[i] << 4) | i),
|
||||
PCI1723_RANGE_CALIBRATION_MODE);
|
||||
}
|
||||
|
||||
outw(0, dev->iobase + PCI1723_CHANGE_CHA_OUTPUT_TYPE_STROBE); // update ranges
|
||||
outw(0, dev->iobase + PCI1723_SYN_STROBE); // update outputs
|
||||
|
||||
// set asynchronous output mode
|
||||
outw(0, dev->iobase + PCI1723_SYN_SET);
|
||||
|
||||
DPRINTK("adv_pci1723 EDBG: END: pci1723_reset(...)\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int pci1723_insn_read_ao(comedi_device * dev, comedi_subdevice * s,
|
||||
comedi_insn * insn, lsampl_t * data)
|
||||
{
|
||||
int n, chan;
|
||||
|
||||
chan = CR_CHAN(insn->chanspec);
|
||||
DPRINTK(" adv_PCI1723 DEBUG: pci1723_insn_read_ao() ----- \n");
|
||||
for (n = 0; n < insn->n; n++)
|
||||
data[n] = devpriv->ao_data[chan];
|
||||
|
||||
return n;
|
||||
}
|
||||
|
||||
/*
|
||||
analog data output;
|
||||
*/
|
||||
static int pci1723_ao_write_winsn(comedi_device * dev, comedi_subdevice * s,
|
||||
comedi_insn * insn, lsampl_t * data)
|
||||
{
|
||||
int n, chan;
|
||||
chan = CR_CHAN(insn->chanspec);
|
||||
|
||||
DPRINTK("PCI1723: the pci1723_ao_write_winsn() ------\n");
|
||||
|
||||
for (n = 0; n < insn->n; n++) {
|
||||
|
||||
devpriv->ao_data[chan] = data[n];
|
||||
outw(data[n], dev->iobase + PCI1723_DA(chan));
|
||||
}
|
||||
|
||||
return n;
|
||||
}
|
||||
|
||||
/*
|
||||
digital i/o config/query
|
||||
*/
|
||||
static int pci1723_dio_insn_config(comedi_device * dev, comedi_subdevice * s,
|
||||
comedi_insn * insn, lsampl_t * data)
|
||||
{
|
||||
unsigned int mask;
|
||||
unsigned int bits;
|
||||
unsigned short dio_mode;
|
||||
|
||||
mask = 1 << CR_CHAN(insn->chanspec);
|
||||
if (mask & 0x00FF) {
|
||||
bits = 0x00FF;
|
||||
} else {
|
||||
bits = 0xFF00;
|
||||
}
|
||||
switch (data[0]) {
|
||||
case INSN_CONFIG_DIO_INPUT:
|
||||
s->io_bits &= ~bits;
|
||||
break;
|
||||
case INSN_CONFIG_DIO_OUTPUT:
|
||||
s->io_bits |= bits;
|
||||
break;
|
||||
case INSN_CONFIG_DIO_QUERY:
|
||||
data[1] = (s->io_bits & bits) ? COMEDI_OUTPUT : COMEDI_INPUT;
|
||||
return insn->n;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
// update hardware DIO mode
|
||||
dio_mode = 0x0000; // low byte output, high byte output
|
||||
if ((s->io_bits & 0x00FF) == 0)
|
||||
dio_mode |= 0x0001; // low byte input
|
||||
if ((s->io_bits & 0xFF00) == 0)
|
||||
dio_mode |= 0x0002; // high byte input
|
||||
outw(dio_mode, dev->iobase + PCI1723_DIGITAL_IO_PORT_SET);
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*
|
||||
digital i/o bits read/write
|
||||
*/
|
||||
static int pci1723_dio_insn_bits(comedi_device * dev, comedi_subdevice * s,
|
||||
comedi_insn * insn, lsampl_t * data)
|
||||
{
|
||||
if (data[0]) {
|
||||
s->state &= ~data[0];
|
||||
s->state |= (data[0] & data[1]);
|
||||
outw(s->state, dev->iobase + PCI1723_WRITE_DIGITAL_OUTPUT_CMD);
|
||||
}
|
||||
data[1] = inw(dev->iobase + PCI1723_READ_DIGITAL_INPUT_DATA);
|
||||
return 2;
|
||||
}
|
||||
|
||||
/*
|
||||
* Attach is called by the Comedi core to configure the driver
|
||||
* for a pci1723 board.
|
||||
*/
|
||||
static int pci1723_attach(comedi_device * dev, comedi_devconfig * it)
|
||||
{
|
||||
comedi_subdevice *s;
|
||||
int ret, subdev, n_subdevices;
|
||||
struct pci_dev *pcidev;
|
||||
unsigned int iobase;
|
||||
unsigned char pci_bus, pci_slot, pci_func;
|
||||
int opt_bus, opt_slot;
|
||||
const char *errstr;
|
||||
|
||||
rt_printk("comedi%d: adv_pci1723: board=%s", dev->minor,
|
||||
this_board->name);
|
||||
|
||||
opt_bus = it->options[0];
|
||||
opt_slot = it->options[1];
|
||||
|
||||
if ((ret = alloc_private(dev, sizeof(pci1723_private))) < 0) {
|
||||
rt_printk(" - Allocation failed!\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
/* Look for matching PCI device */
|
||||
errstr = "not found!";
|
||||
pcidev = NULL;
|
||||
while (NULL != (pcidev =
|
||||
pci_get_device(PCI_VENDOR_ID_ADVANTECH,
|
||||
this_board->device_id, pcidev))) {
|
||||
/* Found matching vendor/device. */
|
||||
if (opt_bus || opt_slot) {
|
||||
/* Check bus/slot. */
|
||||
if (opt_bus != pcidev->bus->number
|
||||
|| opt_slot != PCI_SLOT(pcidev->devfn))
|
||||
continue; /* no match */
|
||||
}
|
||||
/*
|
||||
* Look for device that isn't in use.
|
||||
* Enable PCI device and request regions.
|
||||
*/
|
||||
if (comedi_pci_enable(pcidev, "adv_pci1723")) {
|
||||
errstr = "failed to enable PCI device and request regions!";
|
||||
continue;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (!pcidev) {
|
||||
if (opt_bus || opt_slot) {
|
||||
rt_printk(" - Card at b:s %d:%d %s\n",
|
||||
opt_bus, opt_slot, errstr);
|
||||
} else {
|
||||
rt_printk(" - Card %s\n", errstr);
|
||||
}
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
pci_bus = pcidev->bus->number;
|
||||
pci_slot = PCI_SLOT(pcidev->devfn);
|
||||
pci_func = PCI_FUNC(pcidev->devfn);
|
||||
iobase = pci_resource_start(pcidev, 2);
|
||||
|
||||
rt_printk(", b:s:f=%d:%d:%d, io=0x%4x", pci_bus, pci_slot, pci_func,
|
||||
iobase);
|
||||
|
||||
dev->iobase = iobase;
|
||||
|
||||
dev->board_name = this_board->name;
|
||||
devpriv->pcidev = pcidev;
|
||||
|
||||
n_subdevices = 0;
|
||||
|
||||
if (this_board->n_aochan)
|
||||
n_subdevices++;
|
||||
if (this_board->n_diochan)
|
||||
n_subdevices++;
|
||||
|
||||
if ((ret = alloc_subdevices(dev, n_subdevices)) < 0) {
|
||||
rt_printk(" - Allocation failed!\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
pci1723_reset(dev);
|
||||
subdev = 0;
|
||||
if (this_board->n_aochan) {
|
||||
s = dev->subdevices + subdev;
|
||||
dev->write_subdev = s;
|
||||
s->type = COMEDI_SUBD_AO;
|
||||
s->subdev_flags = SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
|
||||
s->n_chan = this_board->n_aochan;
|
||||
s->maxdata = this_board->ao_maxdata;
|
||||
s->len_chanlist = this_board->n_aochan;
|
||||
s->range_table = this_board->rangelist_ao;
|
||||
|
||||
s->insn_write = pci1723_ao_write_winsn;
|
||||
s->insn_read = pci1723_insn_read_ao;
|
||||
|
||||
// read DIO config
|
||||
switch (inw(dev->iobase + PCI1723_DIGITAL_IO_PORT_MODE) & 0x03) {
|
||||
case 0x00: // low byte output, high byte output
|
||||
s->io_bits = 0xFFFF;
|
||||
break;
|
||||
case 0x01: // low byte input, high byte output
|
||||
s->io_bits = 0xFF00;
|
||||
break;
|
||||
case 0x02: // low byte output, high byte input
|
||||
s->io_bits = 0x00FF;
|
||||
break;
|
||||
case 0x03: // low byte input, high byte input
|
||||
s->io_bits = 0x0000;
|
||||
break;
|
||||
}
|
||||
// read DIO port state
|
||||
s->state = inw(dev->iobase + PCI1723_READ_DIGITAL_INPUT_DATA);
|
||||
|
||||
subdev++;
|
||||
}
|
||||
|
||||
if (this_board->n_diochan) {
|
||||
s = dev->subdevices + subdev;
|
||||
s->type = COMEDI_SUBD_DIO;
|
||||
s->subdev_flags =
|
||||
SDF_READABLE | SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
|
||||
s->n_chan = this_board->n_diochan;
|
||||
s->maxdata = 1;
|
||||
s->len_chanlist = this_board->n_diochan;
|
||||
s->range_table = &range_digital;
|
||||
s->insn_config = pci1723_dio_insn_config;
|
||||
s->insn_bits = pci1723_dio_insn_bits;
|
||||
subdev++;
|
||||
}
|
||||
|
||||
devpriv->valid = 1;
|
||||
|
||||
pci1723_reset(dev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* _detach is called to deconfigure a device. It should deallocate
|
||||
* resources.
|
||||
* This function is also called when _attach() fails, so it should be
|
||||
* careful not to release resources that were not necessarily
|
||||
* allocated by _attach(). dev->private and dev->subdevices are
|
||||
* deallocated automatically by the core.
|
||||
*/
|
||||
static int pci1723_detach(comedi_device * dev)
|
||||
{
|
||||
printk("comedi%d: pci1723: remove\n", dev->minor);
|
||||
|
||||
if (dev->private) {
|
||||
if (devpriv->valid)
|
||||
pci1723_reset(dev);
|
||||
|
||||
if (devpriv->pcidev) {
|
||||
if (dev->iobase) {
|
||||
comedi_pci_disable(devpriv->pcidev);
|
||||
}
|
||||
pci_dev_put(devpriv->pcidev);
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* A convenient macro that defines init_module() and cleanup_module(),
|
||||
* as necessary.
|
||||
*/
|
||||
COMEDI_PCI_INITCLEANUP(driver_pci1723, pci1723_pci_table);
|
||||
Loading…
Reference in New Issue
Block a user