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comedi/drivers/ni_mio_cs.c
Hardware driver for NI PCMCIA MIO E series cards
COMEDI - Linux Control and Measurement Device Interface
Copyright (C) 1997-2000 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: ni_mio_cs
Description: National Instruments DAQCard E series
Author: ds
Status: works
Devices: [National Instruments] DAQCard-AI-16XE-50 (ni_mio_cs),
DAQCard-AI-16E-4, DAQCard-6062E, DAQCard-6024E, DAQCard-6036E
Updated: Thu Oct 23 19:43:17 CDT 2003
See the notes in the ni_atmio.o driver.
*/
/*
The real guts of the driver is in ni_mio_common.c, which is
included by all the E series drivers.
References for specifications:
341080a.pdf DAQCard E Series Register Level Programmer Manual
*/
#include "../comedidev.h"
#include <linux/delay.h>
#include "ni_stc.h"
#include "8255.h"
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>
#undef DEBUG
#define ATMIO 1
#undef PCIMIO
/*
* AT specific setup
*/
#define NI_SIZE 0x20
#define MAX_N_CALDACS 32
static const struct ni_board_struct ni_boards[] = {
{.device_id = 0x010d,
.name = "DAQCard-ai-16xe-50",
.n_adchan = 16,
.adbits = 16,
.ai_fifo_depth = 1024,
.alwaysdither = 0,
.gainlkup = ai_gain_8,
.ai_speed = 5000,
.n_aochan = 0,
.aobits = 0,
.ao_fifo_depth = 0,
.ao_unipolar = 0,
.num_p0_dio_channels = 8,
.has_8255 = 0,
.caldac = {dac8800, dac8043},
},
{.device_id = 0x010c,
.name = "DAQCard-ai-16e-4",
.n_adchan = 16,
.adbits = 12,
.ai_fifo_depth = 1024,
.alwaysdither = 0,
.gainlkup = ai_gain_16,
.ai_speed = 4000,
.n_aochan = 0,
.aobits = 0,
.ao_fifo_depth = 0,
.ao_unipolar = 0,
.num_p0_dio_channels = 8,
.has_8255 = 0,
.caldac = {mb88341}, /* verified */
},
{.device_id = 0x02c4,
.name = "DAQCard-6062E",
.n_adchan = 16,
.adbits = 12,
.ai_fifo_depth = 8192,
.alwaysdither = 0,
.gainlkup = ai_gain_16,
.ai_speed = 2000,
.n_aochan = 2,
.aobits = 12,
.ao_fifo_depth = 2048,
.ao_range_table = &range_bipolar10,
.ao_unipolar = 0,
.ao_speed = 1176,
.num_p0_dio_channels = 8,
.has_8255 = 0,
.caldac = {ad8804_debug}, /* verified */
},
{.device_id = 0x075e,
.name = "DAQCard-6024E", /* specs incorrect! */
.n_adchan = 16,
.adbits = 12,
.ai_fifo_depth = 1024,
.alwaysdither = 0,
.gainlkup = ai_gain_4,
.ai_speed = 5000,
.n_aochan = 2,
.aobits = 12,
.ao_fifo_depth = 0,
.ao_range_table = &range_bipolar10,
.ao_unipolar = 0,
.ao_speed = 1000000,
.num_p0_dio_channels = 8,
.has_8255 = 0,
.caldac = {ad8804_debug},
},
{.device_id = 0x0245,
.name = "DAQCard-6036E", /* specs incorrect! */
.n_adchan = 16,
.adbits = 16,
.ai_fifo_depth = 1024,
.alwaysdither = 1,
.gainlkup = ai_gain_4,
.ai_speed = 5000,
.n_aochan = 2,
.aobits = 16,
.ao_fifo_depth = 0,
.ao_range_table = &range_bipolar10,
.ao_unipolar = 0,
.ao_speed = 1000000,
.num_p0_dio_channels = 8,
.has_8255 = 0,
.caldac = {ad8804_debug},
},
#if 0
{.device_id = 0x0000, /* unknown */
.name = "DAQCard-6715",
.n_adchan = 0,
.n_aochan = 8,
.aobits = 12,
.ao_671x = 8192,
.num_p0_dio_channels = 8,
.caldac = {mb88341, mb88341},
},
#endif
/* N.B. Update ni_mio_cs_ids[] when entries added above. */
};
#define interrupt_pin(a) 0
#define IRQ_POLARITY 1
#define NI_E_IRQ_FLAGS IRQF_SHARED
struct ni_private {
struct pcmcia_device *link;
NI_PRIVATE_COMMON};
#define devpriv ((struct ni_private *)dev->private)
/* How we access registers */
#define ni_writel(a, b) (outl((a), (b)+dev->iobase))
#define ni_readl(a) (inl((a)+dev->iobase))
#define ni_writew(a, b) (outw((a), (b)+dev->iobase))
#define ni_readw(a) (inw((a)+dev->iobase))
#define ni_writeb(a, b) (outb((a), (b)+dev->iobase))
#define ni_readb(a) (inb((a)+dev->iobase))
/* How we access windowed registers */
/* We automatically take advantage of STC registers that can be
* read/written directly in the I/O space of the board. The
* DAQCard devices map the low 8 STC registers to iobase+addr*2. */
static void mio_cs_win_out(struct comedi_device *dev, uint16_t data, int addr)
{
unsigned long flags;
spin_lock_irqsave(&devpriv->window_lock, flags);
if (addr < 8) {
ni_writew(data, addr * 2);
} else {
ni_writew(addr, Window_Address);
ni_writew(data, Window_Data);
}
spin_unlock_irqrestore(&devpriv->window_lock, flags);
}
static uint16_t mio_cs_win_in(struct comedi_device *dev, int addr)
{
unsigned long flags;
uint16_t ret;
spin_lock_irqsave(&devpriv->window_lock, flags);
if (addr < 8) {
ret = ni_readw(addr * 2);
} else {
ni_writew(addr, Window_Address);
ret = ni_readw(Window_Data);
}
spin_unlock_irqrestore(&devpriv->window_lock, flags);
return ret;
}
static int mio_cs_attach(struct comedi_device *dev,
struct comedi_devconfig *it);
static int mio_cs_detach(struct comedi_device *dev);
static struct comedi_driver driver_ni_mio_cs = {
.driver_name = "ni_mio_cs",
.module = THIS_MODULE,
.attach = mio_cs_attach,
.detach = mio_cs_detach,
};
#include "ni_mio_common.c"
static int ni_getboardtype(struct comedi_device *dev,
struct pcmcia_device *link);
/* clean up allocated resources */
/* called when driver is removed */
static int mio_cs_detach(struct comedi_device *dev)
{
mio_common_detach(dev);
/* PCMCIA layer frees the IO region */
if (dev->irq)
free_irq(dev->irq, dev);
return 0;
}
static void mio_cs_config(struct pcmcia_device *link);
static void cs_release(struct pcmcia_device *link);
static void cs_detach(struct pcmcia_device *);
static struct pcmcia_device *cur_dev = NULL;
static const dev_info_t dev_info = "ni_mio_cs";
static dev_node_t dev_node = {
"ni_mio_cs",
COMEDI_MAJOR, 0,
NULL
};
static int cs_attach(struct pcmcia_device *link)
{
link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
link->io.NumPorts1 = 16;
link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
cur_dev = link;
mio_cs_config(link);
return 0;
}
static void cs_release(struct pcmcia_device *link)
{
pcmcia_disable_device(link);
}
static void cs_detach(struct pcmcia_device *link)
{
DPRINTK("cs_detach(link=%p)\n", link);
if (link->dev_node)
cs_release(link);
}
static int mio_cs_suspend(struct pcmcia_device *link)
{
DPRINTK("pm suspend\n");
return 0;
}
static int mio_cs_resume(struct pcmcia_device *link)
{
DPRINTK("pm resume\n");
return 0;
}
static int mio_pcmcia_config_loop(struct pcmcia_device *p_dev,
cistpl_cftable_entry_t *cfg,
cistpl_cftable_entry_t *dflt,
unsigned int vcc,
void *priv_data)
{
int base, ret;
p_dev->io.NumPorts1 = cfg->io.win[0].len;
p_dev->io.IOAddrLines = cfg->io.flags & CISTPL_IO_LINES_MASK;
p_dev->io.NumPorts2 = 0;
for (base = 0x000; base < 0x400; base += 0x20) {
p_dev->io.BasePort1 = base;
ret = pcmcia_request_io(p_dev, &p_dev->io);
if (!ret)
return 0;
}
return -ENODEV;
}
static void mio_cs_config(struct pcmcia_device *link)
{
int ret;
DPRINTK("mio_cs_config(link=%p)\n", link);
ret = pcmcia_loop_config(link, mio_pcmcia_config_loop, NULL);
if (ret) {
dev_warn(&link->dev, "no configuration found\n");
return;
}
ret = pcmcia_request_irq(link, &link->irq);
if (ret) {
printk("pcmcia_request_irq() returned error: %i\n", ret);
}
ret = pcmcia_request_configuration(link, &link->conf);
link->dev_node = &dev_node;
}
static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
{
struct pcmcia_device *link;
unsigned int irq;
int ret;
DPRINTK("mio_cs_attach(dev=%p,it=%p)\n", dev, it);
link = cur_dev; /* XXX hack */
if (!link)
return -EIO;
dev->driver = &driver_ni_mio_cs;
dev->iobase = link->io.BasePort1;
irq = link->irq.AssignedIRQ;
printk("comedi%d: %s: DAQCard: io 0x%04lx, irq %u, ",
dev->minor, dev->driver->driver_name, dev->iobase, irq);
#if 0
{
int i;
printk(" board fingerprint:");
for (i = 0; i < 32; i += 2) {
printk(" %04x %02x", inw(dev->iobase + i),
inb(dev->iobase + i + 1));
}
printk("\n");
printk(" board fingerprint (windowed):");
for (i = 0; i < 10; i++)
printk(" 0x%04x", win_in(i));
printk("\n");
}
#endif
dev->board_ptr = ni_boards + ni_getboardtype(dev, link);
printk(" %s", boardtype.name);
dev->board_name = boardtype.name;
ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
"ni_mio_cs", dev);
if (ret < 0) {
printk(" irq not available\n");
return -EINVAL;
}
dev->irq = irq;
/* allocate private area */
ret = ni_alloc_private(dev);
if (ret < 0)
return ret;
devpriv->stc_writew = &mio_cs_win_out;
devpriv->stc_readw = &mio_cs_win_in;
devpriv->stc_writel = &win_out2;
devpriv->stc_readl = &win_in2;
ret = ni_E_init(dev, it);
if (ret < 0)
return ret;
return 0;
}
static int ni_getboardtype(struct comedi_device *dev,
struct pcmcia_device *link)
{
int i;
for (i = 0; i < n_ni_boards; i++) {
if (ni_boards[i].device_id == link->card_id)
return i;
}
printk("unknown board 0x%04x -- pretend it is a ", link->card_id);
return 0;
}
#ifdef MODULE
MODULE_LICENSE("GPL");
static struct pcmcia_device_id ni_mio_cs_ids[] = {
PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010d), /* DAQCard-ai-16xe-50 */
PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010c), /* DAQCard-ai-16e-4 */
PCMCIA_DEVICE_MANF_CARD(0x010b, 0x02c4), /* DAQCard-6062E */
PCMCIA_DEVICE_MANF_CARD(0x010b, 0x075e), /* DAQCard-6024E */
PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0245), /* DAQCard-6036E */
PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, ni_mio_cs_ids);
struct pcmcia_driver ni_mio_cs_driver = {
.probe = &cs_attach,
.remove = &cs_detach,
.suspend = &mio_cs_suspend,
.resume = &mio_cs_resume,
.id_table = ni_mio_cs_ids,
.owner = THIS_MODULE,
.drv = {
.name = dev_info,
},
};
int init_module(void)
{
pcmcia_register_driver(&ni_mio_cs_driver);
comedi_driver_register(&driver_ni_mio_cs);
return 0;
}
void cleanup_module(void)
{
pcmcia_unregister_driver(&ni_mio_cs_driver);
#if 0
while (cur_dev != NULL)
cs_detach(cur_dev->handle);
#endif
comedi_driver_unregister(&driver_ni_mio_cs);
}
#endif
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