--- /dev/null
+/*
+ comedi/drivers/ni_atmio.c
+ Hardware driver for NI AT-MIO E series cards
+
+ 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_atmio
+Description: National Instruments AT-MIO-E series
+Author: ds
+Devices: [National Instruments] AT-MIO-16E-1 (ni_atmio),
+ AT-MIO-16E-2, AT-MIO-16E-10, AT-MIO-16DE-10, AT-MIO-64E-3,
+ AT-MIO-16XE-50, AT-MIO-16XE-10, AT-AI-16XE-10
+Status: works
+Updated: Thu May 1 20:03:02 CDT 2003
+
+The driver has 2.6 kernel isapnp support, and
+will automatically probe for a supported board if the
+I/O base is left unspecified with comedi_config.
+However, many of
+the isapnp id numbers are unknown. If your board is not
+recognized, please send the output of 'cat /proc/isapnp'
+(you may need to modprobe the isa-pnp module for
+/proc/isapnp to exist) so the
+id numbers for your board can be added to the driver.
+
+Otherwise, you can use the isapnptools package to configure
+your board. Use isapnp to
+configure the I/O base and IRQ for the board, and then pass
+the same values as
+parameters in comedi_config. A sample isapnp.conf file is included
+in the etc/ directory of Comedilib.
+
+Comedilib includes a utility to autocalibrate these boards. The
+boards seem to boot into a state where the all calibration DACs
+are at one extreme of their range, thus the default calibration
+is terrible. Calibration at boot is strongly encouraged.
+
+To use the extended digital I/O on some of the boards, enable the
+8255 driver when configuring the Comedi source tree.
+
+External triggering is supported for some events. The channel index
+(scan_begin_arg, etc.) maps to PFI0 - PFI9.
+
+Some of the more esoteric triggering possibilities of these boards
+are not supported.
+*/
+/*
+ The real guts of the driver is in ni_mio_common.c, which is included
+ both here and in ni_pcimio.c
+
+ Interrupt support added by Truxton Fulton <trux@truxton.com>
+
+ References for specifications:
+
+ 340747b.pdf Register Level Programmer Manual (obsolete)
+ 340747c.pdf Register Level Programmer Manual (new)
+ DAQ-STC reference manual
+
+ Other possibly relevant info:
+
+ 320517c.pdf User manual (obsolete)
+ 320517f.pdf User manual (new)
+ 320889a.pdf delete
+ 320906c.pdf maximum signal ratings
+ 321066a.pdf about 16x
+ 321791a.pdf discontinuation of at-mio-16e-10 rev. c
+ 321808a.pdf about at-mio-16e-10 rev P
+ 321837a.pdf discontinuation of at-mio-16de-10 rev d
+ 321838a.pdf about at-mio-16de-10 rev N
+
+ ISSUES:
+
+ need to deal with external reference for DAC, and other DAC
+ properties in board properties
+
+ deal with at-mio-16de-10 revision D to N changes, etc.
+
+*/
+
+#include "../comedidev.h"
+
+#include <linux/delay.h>
+#include <linux/isapnp.h>
+
+#include "ni_stc.h"
+#include "8255.h"
+
+#undef DEBUG
+
+#define ATMIO 1
+#undef PCIMIO
+
+/*
+ * AT specific setup
+ */
+
+#define NI_SIZE 0x20
+
+#define MAX_N_CALDACS 32
+
+static const ni_board ni_boards[] = {
+ {device_id:44,
+ isapnp_id:0x0000,/* XXX unknown */
+ name: "at-mio-16e-1",
+ n_adchan:16,
+ adbits: 12,
+ ai_fifo_depth:8192,
+ alwaysdither:0,
+ gainlkup:ai_gain_16,
+ ai_speed:800,
+ n_aochan:2,
+ aobits: 12,
+ ao_fifo_depth:2048,
+ .ao_range_table = &range_ni_E_ao_ext,
+ ao_unipolar:1,
+ ao_speed:1000,
+ has_8255:0,
+ .num_p0_dio_channels = 8,
+ caldac: {mb88341},
+ },
+ {device_id:25,
+ isapnp_id:0x1900,
+ name: "at-mio-16e-2",
+ n_adchan:16,
+ adbits: 12,
+ ai_fifo_depth:2048,
+ alwaysdither:0,
+ gainlkup:ai_gain_16,
+ ai_speed:2000,
+ n_aochan:2,
+ aobits: 12,
+ ao_fifo_depth:2048,
+ .ao_range_table = &range_ni_E_ao_ext,
+ ao_unipolar:1,
+ ao_speed:1000,
+ has_8255:0,
+ .num_p0_dio_channels = 8,
+ caldac: {mb88341},
+ },
+ {device_id:36,
+ isapnp_id:0x2400,
+ name: "at-mio-16e-10",
+ n_adchan:16,
+ adbits: 12,
+ ai_fifo_depth:512,
+ alwaysdither:0,
+ gainlkup:ai_gain_16,
+ ai_speed:10000,
+ n_aochan:2,
+ aobits: 12,
+ ao_fifo_depth:0,
+ .ao_range_table = &range_ni_E_ao_ext,
+ ao_unipolar:1,
+ ao_speed:10000,
+ .num_p0_dio_channels = 8,
+ caldac: {ad8804_debug},
+ has_8255:0,
+ },
+ {device_id:37,
+ isapnp_id:0x2500,
+ name: "at-mio-16de-10",
+ n_adchan:16,
+ adbits: 12,
+ ai_fifo_depth:512,
+ alwaysdither:0,
+ gainlkup:ai_gain_16,
+ ai_speed:10000,
+ n_aochan:2,
+ aobits: 12,
+ ao_fifo_depth:0,
+ .ao_range_table = &range_ni_E_ao_ext,
+ ao_unipolar:1,
+ ao_speed:10000,
+ .num_p0_dio_channels = 8,
+ caldac: {ad8804_debug},
+ has_8255:1,
+ },
+ {device_id:38,
+ isapnp_id:0x2600,
+ name: "at-mio-64e-3",
+ n_adchan:64,
+ adbits: 12,
+ ai_fifo_depth:2048,
+ alwaysdither:0,
+ gainlkup:ai_gain_16,
+ ai_speed:2000,
+ n_aochan:2,
+ aobits: 12,
+ ao_fifo_depth:2048,
+ .ao_range_table = &range_ni_E_ao_ext,
+ ao_unipolar:1,
+ ao_speed:1000,
+ has_8255:0,
+ .num_p0_dio_channels = 8,
+ caldac: {ad8804_debug},
+ },
+ {device_id:39,
+ isapnp_id:0x2700,
+ name: "at-mio-16xe-50",
+ n_adchan:16,
+ adbits: 16,
+ ai_fifo_depth:512,
+ alwaysdither:1,
+ gainlkup:ai_gain_8,
+ ai_speed:50000,
+ n_aochan:2,
+ aobits: 12,
+ ao_fifo_depth:0,
+ .ao_range_table = &range_bipolar10,
+ ao_unipolar:0,
+ ao_speed:50000,
+ .num_p0_dio_channels = 8,
+ caldac: {dac8800, dac8043},
+ has_8255:0,
+ },
+ {device_id:50,
+ isapnp_id:0x0000,/* XXX unknown */
+ name: "at-mio-16xe-10",
+ n_adchan:16,
+ adbits: 16,
+ ai_fifo_depth:512,
+ alwaysdither:1,
+ gainlkup:ai_gain_14,
+ ai_speed:10000,
+ n_aochan:2,
+ aobits: 16,
+ ao_fifo_depth:2048,
+ .ao_range_table = &range_ni_E_ao_ext,
+ ao_unipolar:1,
+ ao_speed:1000,
+ .num_p0_dio_channels = 8,
+ caldac: {dac8800, dac8043, ad8522},
+ has_8255:0,
+ },
+ {device_id:51,
+ isapnp_id:0x0000,/* XXX unknown */
+ name: "at-ai-16xe-10",
+ n_adchan:16,
+ adbits: 16,
+ ai_fifo_depth:512,
+ alwaysdither:1, /* unknown */
+ gainlkup:ai_gain_14,
+ ai_speed:10000,
+ n_aochan:0,
+ aobits: 0,
+ ao_fifo_depth:0,
+ ao_unipolar:0,
+ .num_p0_dio_channels = 8,
+ caldac: {dac8800, dac8043, ad8522},
+ has_8255:0,
+ }
+};
+
+static const int ni_irqpin[] =
+ { -1, -1, -1, 0, 1, 2, -1, 3, -1, -1, 4, 5, 6, -1, -1, 7 };
+
+#define interrupt_pin(a) (ni_irqpin[(a)])
+
+#define IRQ_POLARITY 0
+
+#define NI_E_IRQ_FLAGS 0
+
+typedef struct {
+ struct pnp_dev *isapnp_dev;
+ NI_PRIVATE_COMMON} ni_private;
+#define devpriv ((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
+ * AT-MIO devices map the low 8 STC registers to iobase+addr*2. */
+
+static void ni_atmio_win_out(struct comedi_device * dev, uint16_t data, int addr)
+{
+ unsigned long flags;
+
+ comedi_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);
+ }
+ comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+}
+
+static uint16_t ni_atmio_win_in(struct comedi_device * dev, int addr)
+{
+ unsigned long flags;
+ uint16_t ret;
+
+ comedi_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);
+ }
+ comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+
+ return ret;
+}
+
+static struct pnp_device_id device_ids[] = {
+ {.id = "NIC1900",.driver_data = 0},
+ {.id = "NIC2400",.driver_data = 0},
+ {.id = "NIC2500",.driver_data = 0},
+ {.id = "NIC2600",.driver_data = 0},
+ {.id = "NIC2700",.driver_data = 0},
+ {.id = ""}
+};
+
+MODULE_DEVICE_TABLE(pnp, device_ids);
+
+static int ni_atmio_attach(struct comedi_device * dev, struct comedi_devconfig * it);
+static int ni_atmio_detach(struct comedi_device * dev);
+static struct comedi_driver driver_atmio = {
+ driver_name:"ni_atmio",
+ module:THIS_MODULE,
+ attach:ni_atmio_attach,
+ detach:ni_atmio_detach,
+};
+
+COMEDI_INITCLEANUP(driver_atmio);
+
+#include "ni_mio_common.c"
+
+static int ni_getboardtype(struct comedi_device * dev);
+
+/* clean up allocated resources */
+static int ni_atmio_detach(struct comedi_device * dev)
+{
+ mio_common_detach(dev);
+
+ if (dev->iobase)
+ release_region(dev->iobase, NI_SIZE);
+ if (dev->irq) {
+ comedi_free_irq(dev->irq, dev);
+ }
+ if (devpriv->isapnp_dev)
+ pnp_device_detach(devpriv->isapnp_dev);
+
+ return 0;
+}
+
+static int ni_isapnp_find_board(struct pnp_dev **dev)
+{
+ struct pnp_dev *isapnp_dev = NULL;
+ int i;
+
+ for (i = 0; i < n_ni_boards; i++) {
+ isapnp_dev = pnp_find_dev(NULL,
+ ISAPNP_VENDOR('N', 'I', 'C'),
+ ISAPNP_FUNCTION(ni_boards[i].isapnp_id), NULL);
+
+ if (isapnp_dev == NULL || isapnp_dev->card == NULL)
+ continue;
+
+ if (pnp_device_attach(isapnp_dev) < 0) {
+ printk("ni_atmio: %s found but already active, skipping.\n", ni_boards[i].name);
+ continue;
+ }
+ if (pnp_activate_dev(isapnp_dev) < 0) {
+ pnp_device_detach(isapnp_dev);
+ return -EAGAIN;
+ }
+ if (!pnp_port_valid(isapnp_dev, 0)
+ || !pnp_irq_valid(isapnp_dev, 0)) {
+ pnp_device_detach(isapnp_dev);
+ printk("ni_atmio: pnp invalid port or irq, aborting\n");
+ return -ENOMEM;
+ }
+ break;
+ }
+ if (i == n_ni_boards)
+ return -ENODEV;
+ *dev = isapnp_dev;
+ return 0;
+}
+
+static int ni_atmio_attach(struct comedi_device * dev, struct comedi_devconfig * it)
+{
+ struct pnp_dev *isapnp_dev;
+ int ret;
+ unsigned long iobase;
+ int board;
+ unsigned int irq;
+
+ /* allocate private area */
+ if ((ret = ni_alloc_private(dev)) < 0)
+ return ret;
+ devpriv->stc_writew = &ni_atmio_win_out;
+ devpriv->stc_readw = &ni_atmio_win_in;
+ devpriv->stc_writel = &win_out2;
+ devpriv->stc_readl = &win_in2;
+
+ iobase = it->options[0];
+ irq = it->options[1];
+ isapnp_dev = NULL;
+ if (iobase == 0) {
+ ret = ni_isapnp_find_board(&isapnp_dev);
+ if (ret < 0)
+ return ret;
+
+ iobase = pnp_port_start(isapnp_dev, 0);
+ irq = pnp_irq(isapnp_dev, 0);
+ devpriv->isapnp_dev = isapnp_dev;
+ }
+
+ /* reserve our I/O region */
+
+ printk("comedi%d: ni_atmio: 0x%04lx", dev->minor, iobase);
+ if (!request_region(iobase, NI_SIZE, "ni_atmio")) {
+ printk(" I/O port conflict\n");
+ return -EIO;
+ }
+
+ dev->iobase = iobase;
+
+#ifdef DEBUG
+ /* board existence sanity check */
+ {
+ int i;
+
+ printk(" board fingerprint:");
+ for (i = 0; i < 16; i += 2) {
+ printk(" %04x %02x", inw(dev->iobase + i),
+ inb(dev->iobase + i + 1));
+ }
+ }
+#endif
+
+ /* get board type */
+
+ board = ni_getboardtype(dev);
+ if (board < 0)
+ return -EIO;
+
+ dev->board_ptr = ni_boards + board;
+
+ printk(" %s", boardtype.name);
+ dev->board_name = boardtype.name;
+
+ /* irq stuff */
+
+ if (irq != 0) {
+ if (irq > 15 || ni_irqpin[irq] == -1) {
+ printk(" invalid irq %u\n", irq);
+ return -EINVAL;
+ }
+ printk(" ( irq = %u )", irq);
+ if ((ret = comedi_request_irq(irq, ni_E_interrupt,
+ NI_E_IRQ_FLAGS, "ni_atmio", dev)) < 0) {
+ printk(" irq not available\n");
+ return -EINVAL;
+ }
+ dev->irq = irq;
+ }
+
+ /* generic E series stuff in ni_mio_common.c */
+
+ if ((ret = ni_E_init(dev, it)) < 0) {
+ return ret;
+ }
+
+ return 0;
+}
+
+static int ni_getboardtype(struct comedi_device * dev)
+{
+ int device_id = ni_read_eeprom(dev, 511);
+ int i;
+
+ for (i = 0; i < n_ni_boards; i++) {
+ if (ni_boards[i].device_id == device_id) {
+ return i;
+ }
+ }
+ if (device_id == 255) {
+ printk(" can't find board\n");
+ } else if (device_id == 0) {
+ printk(" EEPROM read error (?) or device not found\n");
+ } else {
+ printk(" unknown device ID %d -- contact author\n", device_id);
+ }
+ return -1;
+}
projects / linux-2.6-omap-h63xx.git / blobdiff