418 строки
10 KiB
C
418 строки
10 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* addi_apci_3501.c
|
|
* Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module.
|
|
* Project manager: Eric Stolz
|
|
*
|
|
* ADDI-DATA GmbH
|
|
* Dieselstrasse 3
|
|
* D-77833 Ottersweier
|
|
* Tel: +19(0)7223/9493-0
|
|
* Fax: +49(0)7223/9493-92
|
|
* http://www.addi-data.com
|
|
* info@addi-data.com
|
|
*/
|
|
|
|
/*
|
|
* Driver: addi_apci_3501
|
|
* Description: ADDI-DATA APCI-3501 Analog output board
|
|
* Devices: [ADDI-DATA] APCI-3501 (addi_apci_3501)
|
|
* Author: H Hartley Sweeten <hsweeten@visionengravers.com>
|
|
* Updated: Mon, 20 Jun 2016 10:57:01 -0700
|
|
* Status: untested
|
|
*
|
|
* Configuration Options: not applicable, uses comedi PCI auto config
|
|
*
|
|
* This board has the following features:
|
|
* - 4 or 8 analog output channels
|
|
* - 2 optically isolated digital inputs
|
|
* - 2 optically isolated digital outputs
|
|
* - 1 12-bit watchdog/timer
|
|
*
|
|
* There are 2 versions of the APCI-3501:
|
|
* - APCI-3501-4 4 analog output channels
|
|
* - APCI-3501-8 8 analog output channels
|
|
*
|
|
* These boards use the same PCI Vendor/Device IDs. The number of output
|
|
* channels used by this driver is determined by reading the EEPROM on
|
|
* the board.
|
|
*
|
|
* The watchdog/timer subdevice is not currently supported.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include "../comedi_pci.h"
|
|
#include "amcc_s5933.h"
|
|
|
|
/*
|
|
* PCI bar 1 register I/O map
|
|
*/
|
|
#define APCI3501_AO_CTRL_STATUS_REG 0x00
|
|
#define APCI3501_AO_CTRL_BIPOLAR BIT(0)
|
|
#define APCI3501_AO_STATUS_READY BIT(8)
|
|
#define APCI3501_AO_DATA_REG 0x04
|
|
#define APCI3501_AO_DATA_CHAN(x) ((x) << 0)
|
|
#define APCI3501_AO_DATA_VAL(x) ((x) << 8)
|
|
#define APCI3501_AO_DATA_BIPOLAR BIT(31)
|
|
#define APCI3501_AO_TRIG_SCS_REG 0x08
|
|
#define APCI3501_TIMER_BASE 0x20
|
|
#define APCI3501_DO_REG 0x40
|
|
#define APCI3501_DI_REG 0x50
|
|
|
|
/*
|
|
* AMCC S5933 NVRAM
|
|
*/
|
|
#define NVRAM_USER_DATA_START 0x100
|
|
|
|
#define NVCMD_BEGIN_READ (0x7 << 5)
|
|
#define NVCMD_LOAD_LOW (0x4 << 5)
|
|
#define NVCMD_LOAD_HIGH (0x5 << 5)
|
|
|
|
/*
|
|
* Function types stored in the eeprom
|
|
*/
|
|
#define EEPROM_DIGITALINPUT 0
|
|
#define EEPROM_DIGITALOUTPUT 1
|
|
#define EEPROM_ANALOGINPUT 2
|
|
#define EEPROM_ANALOGOUTPUT 3
|
|
#define EEPROM_TIMER 4
|
|
#define EEPROM_WATCHDOG 5
|
|
#define EEPROM_TIMER_WATCHDOG_COUNTER 10
|
|
|
|
struct apci3501_private {
|
|
unsigned long amcc;
|
|
unsigned char timer_mode;
|
|
};
|
|
|
|
static const struct comedi_lrange apci3501_ao_range = {
|
|
2, {
|
|
BIP_RANGE(10),
|
|
UNI_RANGE(10)
|
|
}
|
|
};
|
|
|
|
static int apci3501_wait_for_dac(struct comedi_device *dev)
|
|
{
|
|
unsigned int status;
|
|
|
|
do {
|
|
status = inl(dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
|
|
} while (!(status & APCI3501_AO_STATUS_READY));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int apci3501_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 cfg = APCI3501_AO_DATA_CHAN(chan);
|
|
int ret;
|
|
int i;
|
|
|
|
/*
|
|
* All analog output channels have the same output range.
|
|
* 14-bit bipolar: 0-10V
|
|
* 13-bit unipolar: +/-10V
|
|
* Changing the range of one channel changes all of them!
|
|
*/
|
|
if (range) {
|
|
outl(0, dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
|
|
} else {
|
|
cfg |= APCI3501_AO_DATA_BIPOLAR;
|
|
outl(APCI3501_AO_CTRL_BIPOLAR,
|
|
dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
|
|
}
|
|
|
|
for (i = 0; i < insn->n; i++) {
|
|
unsigned int val = data[i];
|
|
|
|
if (range == 1) {
|
|
if (data[i] > 0x1fff) {
|
|
dev_err(dev->class_dev,
|
|
"Unipolar resolution is only 13-bits\n");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
ret = apci3501_wait_for_dac(dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
outl(cfg | APCI3501_AO_DATA_VAL(val),
|
|
dev->iobase + APCI3501_AO_DATA_REG);
|
|
|
|
s->readback[chan] = val;
|
|
}
|
|
|
|
return insn->n;
|
|
}
|
|
|
|
static int apci3501_di_insn_bits(struct comedi_device *dev,
|
|
struct comedi_subdevice *s,
|
|
struct comedi_insn *insn,
|
|
unsigned int *data)
|
|
{
|
|
data[1] = inl(dev->iobase + APCI3501_DI_REG) & 0x3;
|
|
|
|
return insn->n;
|
|
}
|
|
|
|
static int apci3501_do_insn_bits(struct comedi_device *dev,
|
|
struct comedi_subdevice *s,
|
|
struct comedi_insn *insn,
|
|
unsigned int *data)
|
|
{
|
|
s->state = inl(dev->iobase + APCI3501_DO_REG);
|
|
|
|
if (comedi_dio_update_state(s, data))
|
|
outl(s->state, dev->iobase + APCI3501_DO_REG);
|
|
|
|
data[1] = s->state;
|
|
|
|
return insn->n;
|
|
}
|
|
|
|
static void apci3501_eeprom_wait(unsigned long iobase)
|
|
{
|
|
unsigned char val;
|
|
|
|
do {
|
|
val = inb(iobase + AMCC_OP_REG_MCSR_NVCMD);
|
|
} while (val & 0x80);
|
|
}
|
|
|
|
static unsigned short apci3501_eeprom_readw(unsigned long iobase,
|
|
unsigned short addr)
|
|
{
|
|
unsigned short val = 0;
|
|
unsigned char tmp;
|
|
unsigned char i;
|
|
|
|
/* Add the offset to the start of the user data */
|
|
addr += NVRAM_USER_DATA_START;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
/* Load the low 8 bit address */
|
|
outb(NVCMD_LOAD_LOW, iobase + AMCC_OP_REG_MCSR_NVCMD);
|
|
apci3501_eeprom_wait(iobase);
|
|
outb((addr + i) & 0xff, iobase + AMCC_OP_REG_MCSR_NVDATA);
|
|
apci3501_eeprom_wait(iobase);
|
|
|
|
/* Load the high 8 bit address */
|
|
outb(NVCMD_LOAD_HIGH, iobase + AMCC_OP_REG_MCSR_NVCMD);
|
|
apci3501_eeprom_wait(iobase);
|
|
outb(((addr + i) >> 8) & 0xff,
|
|
iobase + AMCC_OP_REG_MCSR_NVDATA);
|
|
apci3501_eeprom_wait(iobase);
|
|
|
|
/* Read the eeprom data byte */
|
|
outb(NVCMD_BEGIN_READ, iobase + AMCC_OP_REG_MCSR_NVCMD);
|
|
apci3501_eeprom_wait(iobase);
|
|
tmp = inb(iobase + AMCC_OP_REG_MCSR_NVDATA);
|
|
apci3501_eeprom_wait(iobase);
|
|
|
|
if (i == 0)
|
|
val |= tmp;
|
|
else
|
|
val |= (tmp << 8);
|
|
}
|
|
|
|
return val;
|
|
}
|
|
|
|
static int apci3501_eeprom_get_ao_n_chan(struct comedi_device *dev)
|
|
{
|
|
struct apci3501_private *devpriv = dev->private;
|
|
unsigned char nfuncs;
|
|
int i;
|
|
|
|
nfuncs = apci3501_eeprom_readw(devpriv->amcc, 10) & 0xff;
|
|
|
|
/* Read functionality details */
|
|
for (i = 0; i < nfuncs; i++) {
|
|
unsigned short offset = i * 4;
|
|
unsigned short addr;
|
|
unsigned char func;
|
|
unsigned short val;
|
|
|
|
func = apci3501_eeprom_readw(devpriv->amcc, 12 + offset) & 0x3f;
|
|
addr = apci3501_eeprom_readw(devpriv->amcc, 14 + offset);
|
|
|
|
if (func == EEPROM_ANALOGOUTPUT) {
|
|
val = apci3501_eeprom_readw(devpriv->amcc, addr + 10);
|
|
return (val >> 4) & 0x3ff;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int apci3501_eeprom_insn_read(struct comedi_device *dev,
|
|
struct comedi_subdevice *s,
|
|
struct comedi_insn *insn,
|
|
unsigned int *data)
|
|
{
|
|
struct apci3501_private *devpriv = dev->private;
|
|
unsigned short addr = CR_CHAN(insn->chanspec);
|
|
unsigned int val;
|
|
unsigned int i;
|
|
|
|
if (insn->n) {
|
|
/* No point reading the same EEPROM location more than once. */
|
|
val = apci3501_eeprom_readw(devpriv->amcc, 2 * addr);
|
|
for (i = 0; i < insn->n; i++)
|
|
data[i] = val;
|
|
}
|
|
|
|
return insn->n;
|
|
}
|
|
|
|
static int apci3501_reset(struct comedi_device *dev)
|
|
{
|
|
unsigned int val;
|
|
int chan;
|
|
int ret;
|
|
|
|
/* Reset all digital outputs to "0" */
|
|
outl(0x0, dev->iobase + APCI3501_DO_REG);
|
|
|
|
/* Default all analog outputs to 0V (bipolar) */
|
|
outl(APCI3501_AO_CTRL_BIPOLAR,
|
|
dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
|
|
val = APCI3501_AO_DATA_BIPOLAR | APCI3501_AO_DATA_VAL(0);
|
|
|
|
/* Set all analog output channels */
|
|
for (chan = 0; chan < 8; chan++) {
|
|
ret = apci3501_wait_for_dac(dev);
|
|
if (ret) {
|
|
dev_warn(dev->class_dev,
|
|
"%s: DAC not-ready for channel %i\n",
|
|
__func__, chan);
|
|
} else {
|
|
outl(val | APCI3501_AO_DATA_CHAN(chan),
|
|
dev->iobase + APCI3501_AO_DATA_REG);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int apci3501_auto_attach(struct comedi_device *dev,
|
|
unsigned long context_unused)
|
|
{
|
|
struct pci_dev *pcidev = comedi_to_pci_dev(dev);
|
|
struct apci3501_private *devpriv;
|
|
struct comedi_subdevice *s;
|
|
int ao_n_chan;
|
|
int ret;
|
|
|
|
devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
|
|
if (!devpriv)
|
|
return -ENOMEM;
|
|
|
|
ret = comedi_pci_enable(dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
devpriv->amcc = pci_resource_start(pcidev, 0);
|
|
dev->iobase = pci_resource_start(pcidev, 1);
|
|
|
|
ao_n_chan = apci3501_eeprom_get_ao_n_chan(dev);
|
|
|
|
ret = comedi_alloc_subdevices(dev, 5);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Initialize the analog output subdevice */
|
|
s = &dev->subdevices[0];
|
|
if (ao_n_chan) {
|
|
s->type = COMEDI_SUBD_AO;
|
|
s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
|
|
s->n_chan = ao_n_chan;
|
|
s->maxdata = 0x3fff;
|
|
s->range_table = &apci3501_ao_range;
|
|
s->insn_write = apci3501_ao_insn_write;
|
|
|
|
ret = comedi_alloc_subdev_readback(s);
|
|
if (ret)
|
|
return ret;
|
|
} else {
|
|
s->type = COMEDI_SUBD_UNUSED;
|
|
}
|
|
|
|
/* Initialize the digital input subdevice */
|
|
s = &dev->subdevices[1];
|
|
s->type = COMEDI_SUBD_DI;
|
|
s->subdev_flags = SDF_READABLE;
|
|
s->n_chan = 2;
|
|
s->maxdata = 1;
|
|
s->range_table = &range_digital;
|
|
s->insn_bits = apci3501_di_insn_bits;
|
|
|
|
/* Initialize the digital output subdevice */
|
|
s = &dev->subdevices[2];
|
|
s->type = COMEDI_SUBD_DO;
|
|
s->subdev_flags = SDF_WRITABLE;
|
|
s->n_chan = 2;
|
|
s->maxdata = 1;
|
|
s->range_table = &range_digital;
|
|
s->insn_bits = apci3501_do_insn_bits;
|
|
|
|
/* Timer/Watchdog subdevice */
|
|
s = &dev->subdevices[3];
|
|
s->type = COMEDI_SUBD_UNUSED;
|
|
|
|
/* Initialize the eeprom subdevice */
|
|
s = &dev->subdevices[4];
|
|
s->type = COMEDI_SUBD_MEMORY;
|
|
s->subdev_flags = SDF_READABLE | SDF_INTERNAL;
|
|
s->n_chan = 256;
|
|
s->maxdata = 0xffff;
|
|
s->insn_read = apci3501_eeprom_insn_read;
|
|
|
|
apci3501_reset(dev);
|
|
return 0;
|
|
}
|
|
|
|
static void apci3501_detach(struct comedi_device *dev)
|
|
{
|
|
if (dev->iobase)
|
|
apci3501_reset(dev);
|
|
comedi_pci_detach(dev);
|
|
}
|
|
|
|
static struct comedi_driver apci3501_driver = {
|
|
.driver_name = "addi_apci_3501",
|
|
.module = THIS_MODULE,
|
|
.auto_attach = apci3501_auto_attach,
|
|
.detach = apci3501_detach,
|
|
};
|
|
|
|
static int apci3501_pci_probe(struct pci_dev *dev,
|
|
const struct pci_device_id *id)
|
|
{
|
|
return comedi_pci_auto_config(dev, &apci3501_driver, id->driver_data);
|
|
}
|
|
|
|
static const struct pci_device_id apci3501_pci_table[] = {
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3001) },
|
|
{ 0 }
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, apci3501_pci_table);
|
|
|
|
static struct pci_driver apci3501_pci_driver = {
|
|
.name = "addi_apci_3501",
|
|
.id_table = apci3501_pci_table,
|
|
.probe = apci3501_pci_probe,
|
|
.remove = comedi_pci_auto_unconfig,
|
|
};
|
|
module_comedi_pci_driver(apci3501_driver, apci3501_pci_driver);
|
|
|
|
MODULE_DESCRIPTION("ADDI-DATA APCI-3501 Analog output board");
|
|
MODULE_AUTHOR("Comedi https://www.comedi.org");
|
|
MODULE_LICENSE("GPL");
|