diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/cb_das16_cs.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/cb_das16_cs.c | 976 |
1 files changed, 976 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c new file mode 100644 index 000000000000..0bfe4c954eb5 --- /dev/null +++ b/drivers/staging/comedi/drivers/cb_das16_cs.c @@ -0,0 +1,976 @@ +/* + 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 |