--- /dev/null
+/*
+ comedi/drivers/das16cs.c
+ Driver for Computer Boards PC-CARD DAS16/16.
+
+ COMEDI - Linux Control and Measurement Device Interface
+ Copyright (C) 2000, 2001, 2002 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: cb_das16_cs
+Description: Computer Boards PC-CARD DAS16/16
+Devices: [ComputerBoards] PC-CARD DAS16/16 (cb_das16_cs), PC-CARD DAS16/16-AO
+Author: ds
+Updated: Mon, 04 Nov 2002 20:04:21 -0800
+Status: experimental
+
+
+*/
+
+#include "../comedidev.h"
+#include <linux/delay.h>
+#include <linux/pci.h>
+
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ds.h>
+
+#include "8253.h"
+
+#define DAS16CS_SIZE 18
+
+#define DAS16CS_ADC_DATA 0
+#define DAS16CS_DIO_MUX 2
+#define DAS16CS_MISC1 4
+#define DAS16CS_MISC2 6
+#define DAS16CS_CTR0 8
+#define DAS16CS_CTR1 10
+#define DAS16CS_CTR2 12
+#define DAS16CS_CTR_CONTROL 14
+#define DAS16CS_DIO 16
+
+struct das16cs_board {
+ const char *name;
+ int device_id;
+ int n_ao_chans;
+};
+static const struct das16cs_board das16cs_boards[] = {
+ {
+ device_id:0x0000,/* unknown */
+ name: "PC-CARD DAS16/16",
+ n_ao_chans:0,
+ },
+ {
+ device_id:0x0039,
+ name: "PC-CARD DAS16/16-AO",
+ n_ao_chans:2,
+ },
+ {
+ device_id:0x4009,
+ name: "PCM-DAS16s/16",
+ n_ao_chans:0,
+ },
+};
+
+#define n_boards (sizeof(das16cs_boards)/sizeof(das16cs_boards[0]))
+#define thisboard ((const struct das16cs_board *)dev->board_ptr)
+
+struct das16cs_private {
+ struct pcmcia_device *link;
+
+ unsigned int ao_readback[2];
+ unsigned short status1;
+ unsigned short status2;
+};
+#define devpriv ((struct das16cs_private *)dev->private)
+
+static int das16cs_attach(struct comedi_device * dev, struct comedi_devconfig * it);
+static int das16cs_detach(struct comedi_device * dev);
+static struct comedi_driver driver_das16cs = {
+ driver_name:"cb_das16_cs",
+ module:THIS_MODULE,
+ attach:das16cs_attach,
+ detach:das16cs_detach,
+};
+
+static struct pcmcia_device *cur_dev = NULL;
+
+static const struct comedi_lrange das16cs_ai_range = { 4, {
+ RANGE(-10, 10),
+ RANGE(-5, 5),
+ RANGE(-2.5, 2.5),
+ RANGE(-1.25, 1.25),
+ }
+};
+
+static irqreturn_t das16cs_interrupt(int irq, void *d PT_REGS_ARG);
+static int das16cs_ai_rinsn(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data);
+static int das16cs_ai_cmd(struct comedi_device * dev, struct comedi_subdevice * s);
+static int das16cs_ai_cmdtest(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_cmd * cmd);
+static int das16cs_ao_winsn(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data);
+static int das16cs_ao_rinsn(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data);
+static int das16cs_dio_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data);
+static int das16cs_dio_insn_config(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data);
+static int das16cs_timer_insn_read(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data);
+static int das16cs_timer_insn_config(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data);
+
+static int get_prodid(struct comedi_device * dev, struct pcmcia_device *link)
+{
+ tuple_t tuple;
+ u_short buf[128];
+ int prodid = 0;
+
+ tuple.TupleData = (cisdata_t *) buf;
+ tuple.TupleOffset = 0;
+ tuple.TupleDataMax = 255;
+ tuple.DesiredTuple = CISTPL_MANFID;
+ tuple.Attributes = TUPLE_RETURN_COMMON;
+ if ((pcmcia_get_first_tuple(link, &tuple) == 0) &&
+ (pcmcia_get_tuple_data(link, &tuple) == 0)) {
+ prodid = le16_to_cpu(buf[1]);
+ }
+
+ return prodid;
+}
+
+static const struct das16cs_board *das16cs_probe(struct comedi_device * dev,
+ struct pcmcia_device *link)
+{
+ int id;
+ int i;
+
+ id = get_prodid(dev, link);
+
+ for (i = 0; i < n_boards; i++) {
+ if (das16cs_boards[i].device_id == id) {
+ return das16cs_boards + i;
+ }
+ }
+
+ printk("unknown board!\n");
+
+ return NULL;
+}
+
+static int das16cs_attach(struct comedi_device * dev, struct comedi_devconfig * it)
+{
+ struct pcmcia_device *link;
+ struct comedi_subdevice *s;
+ int ret;
+ int i;
+
+ printk("comedi%d: cb_das16_cs: ", dev->minor);
+
+ link = cur_dev; /* XXX hack */
+ if (!link)
+ return -EIO;
+
+ dev->iobase = link->io.BasePort1;
+ printk("I/O base=0x%04lx ", dev->iobase);
+
+ printk("fingerprint:\n");
+ for (i = 0; i < 48; i += 2) {
+ printk("%04x ", inw(dev->iobase + i));
+ }
+ printk("\n");
+
+ ret = comedi_request_irq(link->irq.AssignedIRQ, das16cs_interrupt,
+ IRQF_SHARED, "cb_das16_cs", dev);
+ if (ret < 0) {
+ return ret;
+ }
+ dev->irq = link->irq.AssignedIRQ;
+ printk("irq=%u ", dev->irq);
+
+ dev->board_ptr = das16cs_probe(dev, link);
+ if (!dev->board_ptr)
+ return -EIO;
+
+ dev->board_name = thisboard->name;
+
+ if (alloc_private(dev, sizeof(struct das16cs_private)) < 0)
+ return -ENOMEM;
+
+ if (alloc_subdevices(dev, 4) < 0)
+ return -ENOMEM;
+
+ s = dev->subdevices + 0;
+ dev->read_subdev = s;
+ /* analog input subdevice */
+ s->type = COMEDI_SUBD_AI;
+ s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ;
+ s->n_chan = 16;
+ s->maxdata = 0xffff;
+ s->range_table = &das16cs_ai_range;
+ s->len_chanlist = 16;
+ s->insn_read = das16cs_ai_rinsn;
+ s->do_cmd = das16cs_ai_cmd;
+ s->do_cmdtest = das16cs_ai_cmdtest;
+
+ s = dev->subdevices + 1;
+ /* analog output subdevice */
+ if (thisboard->n_ao_chans) {
+ s->type = COMEDI_SUBD_AO;
+ s->subdev_flags = SDF_WRITABLE;
+ s->n_chan = thisboard->n_ao_chans;
+ s->maxdata = 0xffff;
+ s->range_table = &range_bipolar10;
+ s->insn_write = &das16cs_ao_winsn;
+ s->insn_read = &das16cs_ao_rinsn;
+ }
+
+ s = dev->subdevices + 2;
+ /* digital i/o subdevice */
+ if (1) {
+ 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 = das16cs_dio_insn_bits;
+ s->insn_config = das16cs_dio_insn_config;
+ } else {
+ s->type = COMEDI_SUBD_UNUSED;
+ }
+
+ s = dev->subdevices + 3;
+ /* timer subdevice */
+ if (0) {
+ s->type = COMEDI_SUBD_TIMER;
+ s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
+ s->n_chan = 1;
+ s->maxdata = 0xff;
+ s->range_table = &range_unknown;
+ s->insn_read = das16cs_timer_insn_read;
+ s->insn_config = das16cs_timer_insn_config;
+ } else {
+ s->type = COMEDI_SUBD_UNUSED;
+ }
+
+ printk("attached\n");
+
+ return 1;
+}
+
+static int das16cs_detach(struct comedi_device * dev)
+{
+ printk("comedi%d: das16cs: remove\n", dev->minor);
+
+ if (dev->irq) {
+ comedi_free_irq(dev->irq, dev);
+ }
+
+ return 0;
+}
+
+static irqreturn_t das16cs_interrupt(int irq, void *d PT_REGS_ARG)
+{
+ //struct comedi_device *dev = d;
+ return IRQ_HANDLED;
+}
+
+/*
+ * "instructions" read/write data in "one-shot" or "software-triggered"
+ * mode.
+ */
+static int das16cs_ai_rinsn(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data)
+{
+ int i;
+ int to;
+ int aref;
+ int range;
+ int chan;
+ static int range_bits[] = { 0x800, 0x000, 0x100, 0x200 };
+
+ chan = CR_CHAN(insn->chanspec);
+ aref = CR_AREF(insn->chanspec);
+ range = CR_RANGE(insn->chanspec);
+
+ outw(chan, dev->iobase + 2);
+
+ devpriv->status1 &= ~0xf320;
+ devpriv->status1 |= (aref == AREF_DIFF) ? 0 : 0x0020;
+ outw(devpriv->status1, dev->iobase + 4);
+
+ devpriv->status2 &= ~0xff00;
+ devpriv->status2 |= range_bits[range];
+ outw(devpriv->status2, dev->iobase + 6);
+
+ for (i = 0; i < insn->n; i++) {
+ outw(0, dev->iobase);
+
+#define TIMEOUT 1000
+ for (to = 0; to < TIMEOUT; to++) {
+ if (inw(dev->iobase + 4) & 0x0080)
+ break;
+ }
+ if (to == TIMEOUT) {
+ printk("cb_das16_cs: ai timeout\n");
+ return -ETIME;
+ }
+ data[i] = (unsigned short)inw(dev->iobase + 0);
+ }
+
+ return i;
+}
+
+static int das16cs_ai_cmd(struct comedi_device * dev, struct comedi_subdevice * s)
+{
+ return -EINVAL;
+}
+
+static int das16cs_ai_cmdtest(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_cmd * cmd)
+{
+ int err = 0;
+ int tmp;
+
+ /* cmdtest tests a particular command to see if it is valid.
+ * Using the cmdtest ioctl, a user can create a valid cmd
+ * and then have it executes by the cmd ioctl.
+ *
+ * cmdtest returns 1,2,3,4 or 0, depending on which tests
+ * the command passes. */
+
+ /* step 1: make sure trigger sources are trivially valid */
+
+ tmp = cmd->start_src;
+ cmd->start_src &= TRIG_NOW;
+ if (!cmd->start_src || tmp != cmd->start_src)
+ err++;
+
+ tmp = cmd->scan_begin_src;
+ cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT;
+ if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
+ err++;
+
+ tmp = cmd->convert_src;
+ cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
+ if (!cmd->convert_src || tmp != cmd->convert_src)
+ err++;
+
+ tmp = cmd->scan_end_src;
+ cmd->scan_end_src &= TRIG_COUNT;
+ if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
+ err++;
+
+ tmp = cmd->stop_src;
+ cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
+ if (!cmd->stop_src || tmp != cmd->stop_src)
+ err++;
+
+ if (err)
+ return 1;
+
+ /* step 2: make sure trigger sources are unique and mutually compatible */
+
+ /* note that mutual compatiblity is not an issue here */
+ if (cmd->scan_begin_src != TRIG_TIMER &&
+ cmd->scan_begin_src != TRIG_EXT)
+ err++;
+ if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
+ err++;
+ if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
+ err++;
+
+ if (err)
+ return 2;
+
+ /* step 3: make sure arguments are trivially compatible */
+
+ if (cmd->start_arg != 0) {
+ cmd->start_arg = 0;
+ err++;
+ }
+#define MAX_SPEED 10000 /* in nanoseconds */
+#define MIN_SPEED 1000000000 /* in nanoseconds */
+
+ if (cmd->scan_begin_src == TRIG_TIMER) {
+ if (cmd->scan_begin_arg < MAX_SPEED) {
+ cmd->scan_begin_arg = MAX_SPEED;
+ err++;
+ }
+ if (cmd->scan_begin_arg > MIN_SPEED) {
+ cmd->scan_begin_arg = MIN_SPEED;
+ err++;
+ }
+ } else {
+ /* external trigger */
+ /* should be level/edge, hi/lo specification here */
+ /* should specify multiple external triggers */
+ if (cmd->scan_begin_arg > 9) {
+ cmd->scan_begin_arg = 9;
+ err++;
+ }
+ }
+ if (cmd->convert_src == TRIG_TIMER) {
+ if (cmd->convert_arg < MAX_SPEED) {
+ cmd->convert_arg = MAX_SPEED;
+ err++;
+ }
+ if (cmd->convert_arg > MIN_SPEED) {
+ cmd->convert_arg = MIN_SPEED;
+ err++;
+ }
+ } else {
+ /* external trigger */
+ /* see above */
+ if (cmd->convert_arg > 9) {
+ cmd->convert_arg = 9;
+ err++;
+ }
+ }
+
+ if (cmd->scan_end_arg != cmd->chanlist_len) {
+ cmd->scan_end_arg = cmd->chanlist_len;
+ err++;
+ }
+ if (cmd->stop_src == TRIG_COUNT) {
+ if (cmd->stop_arg > 0x00ffffff) {
+ cmd->stop_arg = 0x00ffffff;
+ err++;
+ }
+ } else {
+ /* TRIG_NONE */
+ if (cmd->stop_arg != 0) {
+ cmd->stop_arg = 0;
+ err++;
+ }
+ }
+
+ if (err)
+ return 3;
+
+ /* step 4: fix up any arguments */
+
+ if (cmd->scan_begin_src == TRIG_TIMER) {
+ unsigned int div1, div2;
+
+ tmp = cmd->scan_begin_arg;
+ i8253_cascade_ns_to_timer(100, &div1, &div2,
+ &cmd->scan_begin_arg, cmd->flags & TRIG_ROUND_MASK);
+ if (tmp != cmd->scan_begin_arg)
+ err++;
+ }
+ if (cmd->convert_src == TRIG_TIMER) {
+ unsigned int div1, div2;
+
+ tmp = cmd->convert_arg;
+ i8253_cascade_ns_to_timer(100, &div1, &div2,
+ &cmd->scan_begin_arg, cmd->flags & TRIG_ROUND_MASK);
+ if (tmp != cmd->convert_arg)
+ err++;
+ if (cmd->scan_begin_src == TRIG_TIMER &&
+ cmd->scan_begin_arg <
+ cmd->convert_arg * cmd->scan_end_arg) {
+ cmd->scan_begin_arg =
+ cmd->convert_arg * cmd->scan_end_arg;
+ err++;
+ }
+ }
+
+ if (err)
+ return 4;
+
+ return 0;
+}
+
+static int das16cs_ao_winsn(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data)
+{
+ int i;
+ int chan = CR_CHAN(insn->chanspec);
+ unsigned short status1;
+ unsigned short d;
+ int bit;
+
+ for (i = 0; i < insn->n; i++) {
+ devpriv->ao_readback[chan] = data[i];
+ d = data[i];
+
+ outw(devpriv->status1, dev->iobase + 4);
+ comedi_udelay(1);
+
+ status1 = devpriv->status1 & ~0xf;
+ if (chan)
+ status1 |= 0x0001;
+ else
+ status1 |= 0x0008;
+
+/* printk("0x%04x\n",status1);*/
+ outw(status1, dev->iobase + 4);
+ comedi_udelay(1);
+
+ for (bit = 15; bit >= 0; bit--) {
+ int b = (d >> bit) & 0x1;
+ b <<= 1;
+/* printk("0x%04x\n",status1 | b | 0x0000);*/
+ outw(status1 | b | 0x0000, dev->iobase + 4);
+ comedi_udelay(1);
+/* printk("0x%04x\n",status1 | b | 0x0004);*/
+ outw(status1 | b | 0x0004, dev->iobase + 4);
+ comedi_udelay(1);
+ }
+/* make high both DAC0CS and DAC1CS to load
+ new data and update analog output*/
+ outw(status1 | 0x9, dev->iobase + 4);
+ }
+
+ return i;
+}
+
+/* AO subdevices should have a read insn as well as a write insn.
+ * Usually this means copying a value stored in devpriv. */
+static int das16cs_ao_rinsn(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data)
+{
+ int i;
+ int chan = CR_CHAN(insn->chanspec);
+
+ for (i = 0; i < insn->n; i++)
+ data[i] = devpriv->ao_readback[chan];
+
+ return i;
+}
+
+/* DIO devices are slightly special. Although it is possible to
+ * implement the insn_read/insn_write interface, it is much more
+ * useful to applications if you implement the insn_bits interface.
+ * This allows packed reading/writing of the DIO channels. The
+ * comedi core can convert between insn_bits and insn_read/write */
+static int das16cs_dio_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data)
+{
+ if (insn->n != 2)
+ return -EINVAL;
+
+ if (data[0]) {
+ s->state &= ~data[0];
+ s->state |= data[0] & data[1];
+
+ outw(s->state, dev->iobase + 16);
+ }
+
+ /* on return, data[1] contains the value of the digital
+ * input and output lines. */
+ data[1] = inw(dev->iobase + 16);
+
+ return 2;
+}
+
+static int das16cs_dio_insn_config(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data)
+{
+ int chan = CR_CHAN(insn->chanspec);
+ int bits;
+
+ if (chan < 4)
+ bits = 0x0f;
+ else
+ bits = 0xf0;
+
+ switch (data[0]) {
+ case INSN_CONFIG_DIO_OUTPUT:
+ s->io_bits |= bits;
+ break;
+ case INSN_CONFIG_DIO_INPUT:
+ s->io_bits &= bits;
+ 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;
+ }
+
+ devpriv->status2 &= ~0x00c0;
+ devpriv->status2 |= (s->io_bits & 0xf0) ? 0x0080 : 0;
+ devpriv->status2 |= (s->io_bits & 0x0f) ? 0x0040 : 0;
+
+ outw(devpriv->status2, dev->iobase + 6);
+
+ return insn->n;
+}
+
+static int das16cs_timer_insn_read(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data)
+{
+ return -EINVAL;
+}
+
+static int das16cs_timer_insn_config(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data)
+{
+ return -EINVAL;
+}
+
+/* PCMCIA stuff */
+
+/*======================================================================
+
+ The following pcmcia code for the pcm-das08 is adapted from the
+ dummy_cs.c driver of the Linux PCMCIA Card Services package.
+
+ The initial developer of the original code is David A. Hinds
+ <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
+ are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
+
+======================================================================*/
+
+/*
+ All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
+ you do not define PCMCIA_DEBUG at all, all the debug code will be
+ left out. If you compile with PCMCIA_DEBUG=0, the debug code will
+ be present but disabled -- but it can then be enabled for specific
+ modules at load time with a 'pc_debug=#' option to insmod.
+*/
+#if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
+
+#ifdef PCMCIA_DEBUG
+static int pc_debug = PCMCIA_DEBUG;
+module_param(pc_debug, int, 0644);
+#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
+static char *version =
+ "cb_das16_cs.c pcmcia code (David Schleef), modified from dummy_cs.c 1.31 2001/08/24 12:13:13 (David Hinds)";
+#else
+#define DEBUG(n, args...)
+#endif
+
+/*====================================================================*/
+
+static void das16cs_pcmcia_config(struct pcmcia_device *link);
+static void das16cs_pcmcia_release(struct pcmcia_device *link);
+static int das16cs_pcmcia_suspend(struct pcmcia_device *p_dev);
+static int das16cs_pcmcia_resume(struct pcmcia_device *p_dev);
+
+/*
+ The attach() and detach() entry points are used to create and destroy
+ "instances" of the driver, where each instance represents everything
+ needed to manage one actual PCMCIA card.
+*/
+
+static int das16cs_pcmcia_attach(struct pcmcia_device *);
+static void das16cs_pcmcia_detach(struct pcmcia_device *);
+
+/*
+ You'll also need to prototype all the functions that will actually
+ be used to talk to your device. See 'memory_cs' for a good example
+ of a fully self-sufficient driver; the other drivers rely more or
+ less on other parts of the kernel.
+*/
+
+/*
+ The dev_info variable is the "key" that is used to match up this
+ device driver with appropriate cards, through the card configuration
+ database.
+*/
+
+static dev_info_t dev_info = "cb_das16_cs";
+
+struct local_info_t {
+ struct pcmcia_device *link;
+ dev_node_t node;
+ int stop;
+ struct bus_operations *bus;
+};
+
+/*======================================================================
+
+ das16cs_pcmcia_attach() creates an "instance" of the driver, allocating
+ local data structures for one device. The device is registered
+ with Card Services.
+
+ The dev_link structure is initialized, but we don't actually
+ configure the card at this point -- we wait until we receive a
+ card insertion event.
+
+======================================================================*/
+
+static int das16cs_pcmcia_attach(struct pcmcia_device *link)
+{
+ struct local_info_t *local;
+
+ DEBUG(0, "das16cs_pcmcia_attach()\n");
+
+ /* Allocate space for private device-specific data */
+ local = kzalloc(sizeof(struct local_info_t), GFP_KERNEL);
+ if (!local)
+ return -ENOMEM;
+ local->link = link;
+ link->priv = local;
+
+ /* Initialize the pcmcia_device structure */
+ /* Interrupt setup */
+ link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+ link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+ link->irq.Handler = NULL;
+
+ link->conf.Attributes = 0;
+ link->conf.IntType = INT_MEMORY_AND_IO;
+
+ cur_dev = link;
+
+ das16cs_pcmcia_config(link);
+
+ return 0;
+} /* das16cs_pcmcia_attach */
+
+static void das16cs_pcmcia_detach(struct pcmcia_device *link)
+{
+ DEBUG(0, "das16cs_pcmcia_detach(0x%p)\n", link);
+
+ if (link->dev_node) {
+ ((struct local_info_t *) link->priv)->stop = 1;
+ das16cs_pcmcia_release(link);
+ }
+ /* This points to the parent struct local_info_t struct */
+ if (link->priv)
+ kfree(link->priv);
+} /* das16cs_pcmcia_detach */
+
+static void das16cs_pcmcia_config(struct pcmcia_device *link)
+{
+ struct local_info_t *dev = link->priv;
+ tuple_t tuple;
+ cisparse_t parse;
+ int last_fn, last_ret;
+ u_char buf[64];
+ cistpl_cftable_entry_t dflt = { 0 };
+
+ DEBUG(0, "das16cs_pcmcia_config(0x%p)\n", link);
+
+ /*
+ This reads the card's CONFIG tuple to find its configuration
+ registers.
+ */
+ tuple.DesiredTuple = CISTPL_CONFIG;
+ tuple.Attributes = 0;
+ tuple.TupleData = buf;
+ tuple.TupleDataMax = sizeof(buf);
+ tuple.TupleOffset = 0;
+ last_fn = GetFirstTuple;
+ if ((last_ret = pcmcia_get_first_tuple(link, &tuple)) != 0)
+ goto cs_failed;
+ last_fn = GetTupleData;
+ if ((last_ret = pcmcia_get_tuple_data(link, &tuple)) != 0)
+ goto cs_failed;
+ last_fn = ParseTuple;
+ if ((last_ret = pcmcia_parse_tuple(link, &tuple, &parse)) != 0)
+ goto cs_failed;
+ link->conf.ConfigBase = parse.config.base;
+ link->conf.Present = parse.config.rmask[0];
+
+ /*
+ In this loop, we scan the CIS for configuration table entries,
+ each of which describes a valid card configuration, including
+ voltage, IO window, memory window, and interrupt settings.
+
+ We make no assumptions about the card to be configured: we use
+ just the information available in the CIS. In an ideal world,
+ this would work for any PCMCIA card, but it requires a complete
+ and accurate CIS. In practice, a driver usually "knows" most of
+ these things without consulting the CIS, and most client drivers
+ will only use the CIS to fill in implementation-defined details.
+ */
+ tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+ last_fn = GetFirstTuple;
+ if ((last_ret = pcmcia_get_first_tuple(link, &tuple)) != 0)
+ goto cs_failed;
+ while (1) {
+ cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
+ if (pcmcia_get_tuple_data(link, &tuple))
+ goto next_entry;
+ if (pcmcia_parse_tuple(link, &tuple, &parse))
+ goto next_entry;
+
+ if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
+ dflt = *cfg;
+ if (cfg->index == 0)
+ goto next_entry;
+ link->conf.ConfigIndex = cfg->index;
+
+ /* Does this card need audio output? */
+/* if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
+ link->conf.Attributes |= CONF_ENABLE_SPKR;
+ link->conf.Status = CCSR_AUDIO_ENA;
+ }
+*/
+ /* Do we need to allocate an interrupt? */
+ if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
+ link->conf.Attributes |= CONF_ENABLE_IRQ;
+
+ /* IO window settings */
+ link->io.NumPorts1 = link->io.NumPorts2 = 0;
+ if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
+ cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
+ if (!(io->flags & CISTPL_IO_8BIT))
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
+ if (!(io->flags & CISTPL_IO_16BIT))
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+ link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
+ link->io.BasePort1 = io->win[0].base;
+ link->io.NumPorts1 = io->win[0].len;
+ if (io->nwin > 1) {
+ link->io.Attributes2 = link->io.Attributes1;
+ link->io.BasePort2 = io->win[1].base;
+ link->io.NumPorts2 = io->win[1].len;
+ }
+ /* This reserves IO space but doesn't actually enable it */
+ if (pcmcia_request_io(link, &link->io))
+ goto next_entry;
+ }
+
+ /* If we got this far, we're cool! */
+ break;
+
+ next_entry:
+ last_fn = GetNextTuple;
+ if ((last_ret = pcmcia_get_next_tuple(link, &tuple)) != 0)
+ goto cs_failed;
+ }
+
+ /*
+ Allocate an interrupt line. Note that this does not assign a
+ handler to the interrupt, unless the 'Handler' member of the
+ irq structure is initialized.
+ */
+ if (link->conf.Attributes & CONF_ENABLE_IRQ) {
+ last_fn = RequestIRQ;
+ if ((last_ret = pcmcia_request_irq(link, &link->irq)) != 0)
+ goto cs_failed;
+ }
+ /*
+ This actually configures the PCMCIA socket -- setting up
+ the I/O windows and the interrupt mapping, and putting the
+ card and host interface into "Memory and IO" mode.
+ */
+ last_fn = RequestConfiguration;
+ if ((last_ret = pcmcia_request_configuration(link, &link->conf)) != 0)
+ goto cs_failed;
+
+ /*
+ At this point, the dev_node_t structure(s) need to be
+ initialized and arranged in a linked list at link->dev.
+ */
+ sprintf(dev->node.dev_name, "cb_das16_cs");
+ dev->node.major = dev->node.minor = 0;
+ link->dev_node = &dev->node;
+
+ /* Finally, report what we've done */
+ printk(KERN_INFO "%s: index 0x%02x",
+ dev->node.dev_name, link->conf.ConfigIndex);
+ if (link->conf.Attributes & CONF_ENABLE_IRQ)
+ printk(", irq %u", link->irq.AssignedIRQ);
+ if (link->io.NumPorts1)
+ printk(", io 0x%04x-0x%04x", link->io.BasePort1,
+ link->io.BasePort1 + link->io.NumPorts1 - 1);
+ if (link->io.NumPorts2)
+ printk(" & 0x%04x-0x%04x", link->io.BasePort2,
+ link->io.BasePort2 + link->io.NumPorts2 - 1);
+ printk("\n");
+
+ return;
+
+ cs_failed:
+ cs_error(link, last_fn, last_ret);
+ das16cs_pcmcia_release(link);
+} /* das16cs_pcmcia_config */
+
+static void das16cs_pcmcia_release(struct pcmcia_device *link)
+{
+ DEBUG(0, "das16cs_pcmcia_release(0x%p)\n", link);
+ pcmcia_disable_device(link);
+} /* das16cs_pcmcia_release */
+
+static int das16cs_pcmcia_suspend(struct pcmcia_device *link)
+{
+ struct local_info_t *local = link->priv;
+
+ /* Mark the device as stopped, to block IO until later */
+ local->stop = 1;
+
+ return 0;
+} /* das16cs_pcmcia_suspend */
+
+static int das16cs_pcmcia_resume(struct pcmcia_device *link)
+{
+ struct local_info_t *local = link->priv;
+
+ local->stop = 0;
+ return 0;
+} /* das16cs_pcmcia_resume */
+
+/*====================================================================*/
+
+static struct pcmcia_device_id das16cs_id_table[] = {
+ PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x0039),
+ PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x4009),
+ PCMCIA_DEVICE_NULL
+};
+
+MODULE_DEVICE_TABLE(pcmcia, das16cs_id_table);
+
+struct pcmcia_driver das16cs_driver = {
+ .probe = das16cs_pcmcia_attach,
+ .remove = das16cs_pcmcia_detach,
+ .suspend = das16cs_pcmcia_suspend,
+ .resume = das16cs_pcmcia_resume,
+ .id_table = das16cs_id_table,
+ .owner = THIS_MODULE,
+ .drv = {
+ .name = dev_info,
+ },
+};
+
+static int __init init_das16cs_pcmcia_cs(void)
+{
+ DEBUG(0, "%s\n", version);
+ pcmcia_register_driver(&das16cs_driver);
+ return 0;
+}
+
+static void __exit exit_das16cs_pcmcia_cs(void)
+{
+ DEBUG(0, "das16cs_pcmcia_cs: unloading\n");
+ pcmcia_unregister_driver(&das16cs_driver);
+}
+
+int __init init_module(void)
+{
+ int ret;
+
+ ret = init_das16cs_pcmcia_cs();
+ if (ret < 0)
+ return ret;
+
+ return comedi_driver_register(&driver_das16cs);
+}
+
+void __exit cleanup_module(void)
+{
+ exit_das16cs_pcmcia_cs();
+ comedi_driver_unregister(&driver_das16cs);
+}
+
+#else
+COMEDI_INITCLEANUP(driver_das16cs);
+#endif //CONFIG_PCMCIA
projects / linux-2.6-omap-h63xx.git / blobdiff