From: David Schleef Date: Wed, 6 Feb 2002 05:21:09 +0000 (+0000) Subject: New driver X-Git-Tag: r0_7_64~155 X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=5beb0f7d90864e63b53422927c4fce8003bd7bc3;p=comedi.git New driver --- diff --git a/comedi/drivers/ni_daq_dio24.c b/comedi/drivers/ni_daq_dio24.c new file mode 100644 index 00000000..a3d8eea5 --- /dev/null +++ b/comedi/drivers/ni_daq_dio24.c @@ -0,0 +1,851 @@ +/* + ni_daq_dio24.c driver for National Instruments PCMCIA DAQ-Card DIO-24 + Copyright (C) 2002 Daniel Vecino Castel + + PCMCIA crap at end of file is adapted from dummy_cs.c 1.31 2001/08/24 12:13:13 + from the pcmcia package. + The initial developer of the pcmcia dummy_cs.c code is David A. Hinds + . Portions created by David A. Hinds + are Copyright (C) 1999 David A. Hinds. All Rights Reserved. + + 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_daq_dio24.o +Description: National Instruments PCMCIA DAQ-Card DIO-24 +Author: Daniel Vecino Castel +Devices: National Instruments PCMCIA DAQ-Card DIO-24 +Status: ? +*/ + + +//#define LABPC_DEBUG // enable debugging messages +#undef LABPC_DEBUG + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "8255.h" + +#ifdef CONFIG_PCMCIA + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +/* + A linked list of "instances" of the dummy device. Each actual + PCMCIA card corresponds to one device instance, and is described + by one dev_link_t structure (defined in ds.h). + + You may not want to use a linked list for this -- for example, the + memory card driver uses an array of dev_link_t pointers, where minor + device numbers are used to derive the corresponding array index. +*/ + +static dev_link_t *pcmcia_dev_list = NULL; + +#endif // CONFIG_PCMCIA + +#define DIO24_SIZE 4 // size of io region used by board + +static int dio24_attach(comedi_device *dev,comedi_devconfig *it); +static int dio24_detach(comedi_device *dev); + +static unsigned int dio24_inb(unsigned int address); +static void dio24_outb(unsigned int byte, unsigned int address); +static int dio24_dio_mem_callback(int dir, int port, int data, void *arg); + +enum dio24_bustype {pcmcia_bustype}; + +typedef struct dio24_board_struct{ + char *name; + int device_id; // device id for pcmcia board + enum dio24_bustype bustype; // PCMCIA + int have_dio; // have 8255 chip + // function pointers so we can use inb/outb or readb/writeb as appropriate + unsigned int (*read_byte)(unsigned int address); + void (*write_byte)(unsigned int byte, unsigned int address); +}dio24_board; + + +static dio24_board dio24_boards[] = +{ +#ifdef CONFIG_PCMCIA + { + name: "daqcard-dio24", + device_id: 0x475c, // 0x10b is manufacturer id, 0x475c is device id + bustype: pcmcia_bustype, + have_dio: 1, + read_byte: dio24_inb, + write_byte: dio24_outb, + }, +#endif // CONFIG_PCMCIA +}; + +/* + * Useful for shorthand access to the particular board structure + */ +#define thisboard ((dio24_board *)dev->board_ptr) + +typedef struct{ + int data; /* number of data points left to be taken */ +}dio24_private; + +#define devpriv ((dio24_private *)dev->private) + +static comedi_driver driver_dio24={ + driver_name: "ni_daq_dio24", + module: THIS_MODULE, + attach: dio24_attach, + detach: dio24_detach, + num_names: sizeof(dio24_boards) / sizeof(dio24_board), + board_name: (char **)dio24_boards, + offset: sizeof(dio24_board), +}; + +static int dio24_attach(comedi_device *dev, comedi_devconfig *it) +{ + comedi_subdevice *s; + int iobase = 0; + int irq = 0; +#ifdef CONFIG_PCMCIA + dev_link_t *link; +#endif + + /* allocate and initialize dev->private */ + if(alloc_private(dev, sizeof(dio24_private)) < 0) + return -ENOMEM; + + // get base address, irq etc. based on bustype + switch(thisboard->bustype) + { + case pcmcia_bustype: +#ifdef CONFIG_PCMCIA + link = pcmcia_dev_list; /* XXX hack */ + if(!link) return -EIO; + iobase = link->io.BasePort1; + irq = link->irq.AssignedIRQ; +#else + printk(" driver was not compiled with pcmcia support\n"); + return -EINVAL; +#endif // CONFIG_PCMCIA + break; + default: + printk("bug! couldn't determine board type\n"); + return -EINVAL; + break; + } + printk("comedi%d: ni_daq_dio24: %s, io 0x%x", dev->minor, thisboard->name, iobase); + if(irq) + { + printk(", irq %i", irq); + } + + printk("\n"); + + if(iobase == 0) + { + printk("io base address is zero!\n"); + return -EINVAL; + } + + dev->iobase = iobase; + + /* grab our IRQ */ + if(irq < 0) + { + printk("irq out of range\n"); + return -EINVAL; + } + dev->irq = irq; + + dev->board_name = thisboard->name; + + dev->n_subdevices = 2; // Antes era 5 + if(alloc_subdevices(dev) < 0) + return -ENOMEM; + + /* 8255 dio */ + s = dev->subdevices + 0; + subdev_8255_init(dev, s, NULL, (void*)(dev->iobase)); + + return 0; +}; + +static int dio24_detach(comedi_device *dev) +{ + printk("comedi%d: ni_daq_dio24: remove\n", dev->minor); + + if(dev->subdevices) + subdev_8255_cleanup(dev,dev->subdevices + 2); + + if(thisboard->bustype != pcmcia_bustype && + dev->iobase) + release_region(dev->iobase, DIO24_SIZE); + if(dev->irq) + comedi_free_irq(dev->irq, dev); + + return 0; +}; + + +/* functions that do inb/outb and readb/writeb so we can use + * function pointers to decide which to use */ +static unsigned int dio24_inb(unsigned int address) +{ + return inb(address); +} + +static void dio24_outb(unsigned int byte, unsigned int address) +{ + outb(byte, address); +} + + +// PCMCIA crap +#ifdef CONFIG_PCMCIA + +/* + 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. +*/ +#ifdef PCMCIA_DEBUG +static int pc_debug = PCMCIA_DEBUG; +MODULE_PARM(pc_debug, "i"); +#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) +static char *version = +"ni_daq_dio24.c, based on dummy_cs.c"; +#else +#define DEBUG(n, args...) +#endif + +/*====================================================================*/ + +/* Parameters that can be set with 'insmod' */ + +/* The old way: bit map of interrupts to choose from */ +/* This means pick from 15, 14, 12, 11, 10, 9, 7, 5, 4, and 3 */ +static u_int irq_mask = 0xdeb8; +/* Newer, simpler way of listing specific interrupts */ +static int irq_list[4] = { -1 }; + +MODULE_PARM(irq_mask, "i"); +MODULE_PARM(irq_list, "1-4i"); + +/*====================================================================*/ + +/* + The event() function is this driver's Card Services event handler. + It will be called by Card Services when an appropriate card status + event is received. The config() and release() entry points are + used to configure or release a socket, in response to card + insertion and ejection events. They are invoked from the dummy + event handler. +*/ + +static void dio24_config(dev_link_t *link); +static void dio24_release(u_long arg); +static int dio24_event(event_t event, int priority, + event_callback_args_t *args); + +/* + 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 dev_link_t *dio24_cs_attach(void); +static void dio24_cs_detach(dev_link_t *); + +/* + 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 = "ni_daq_dio24"; + +/* + A dev_link_t structure has fields for most things that are needed + to keep track of a socket, but there will usually be some device + specific information that also needs to be kept track of. The + 'priv' pointer in a dev_link_t structure can be used to point to + a device-specific private data structure, like this. + + To simplify the data structure handling, we actually include the + dev_link_t structure in the device's private data structure. + + A driver needs to provide a dev_node_t structure for each device + on a card. In some cases, there is only one device per card (for + example, ethernet cards, modems). In other cases, there may be + many actual or logical devices (SCSI adapters, memory cards with + multiple partitions). The dev_node_t structures need to be kept + in a linked list starting at the 'dev' field of a dev_link_t + structure. We allocate them in the card's private data structure, + because they generally shouldn't be allocated dynamically. + + In this case, we also provide a flag to indicate if a device is + "stopped" due to a power management event, or card ejection. The + device IO routines can use a flag like this to throttle IO to a + card that is not ready to accept it. + + The bus_operations pointer is used on platforms for which we need + to use special socket-specific versions of normal IO primitives + (inb, outb, readb, writeb, etc) for card IO. +*/ + +typedef struct local_info_t { + dev_link_t link; + dev_node_t node; + int stop; + struct bus_operations *bus; +} local_info_t; + +/*====================================================================*/ + +static void cs_error(client_handle_t handle, int func, int ret) +{ + error_info_t err = { func, ret }; + CardServices(ReportError, handle, &err); +} + +/*====================================================================== + + dio24_cs_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 dev_link_t *dio24_cs_attach(void) +{ + local_info_t *local; + dev_link_t *link; + client_reg_t client_reg; + int ret, i; + + printk(KERN_INFO "ni_daq_dio24: HOLA SOY YO - CS-attach!\n"); + + DEBUG(0, "dio24_cs_attach()\n"); + + /* Allocate space for private device-specific data */ + local = kmalloc(sizeof(local_info_t), GFP_KERNEL); + if (!local) return NULL; + memset(local, 0, sizeof(local_info_t)); + link = &local->link; link->priv = local; + + /* Initialize the dev_link_t structure */ + link->release.function = &dio24_release; + link->release.data = (u_long)link; + + /* Interrupt setup */ + link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; + link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID; + if (irq_list[0] == -1) + link->irq.IRQInfo2 = irq_mask; + else + for (i = 0; i < 4; i++) + link->irq.IRQInfo2 |= 1 << irq_list[i]; + link->irq.Handler = NULL; + + /* + General socket configuration defaults can go here. In this + client, we assume very little, and rely on the CIS for almost + everything. In most clients, many details (i.e., number, sizes, + and attributes of IO windows) are fixed by the nature of the + device, and can be hard-wired here. + */ + link->conf.Attributes = 0; + link->conf.Vcc = 50; + link->conf.IntType = INT_MEMORY_AND_IO; + + /* Register with Card Services */ + link->next = pcmcia_dev_list; + pcmcia_dev_list = link; + client_reg.dev_info = &dev_info; + client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE; + client_reg.EventMask = + CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL | + CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET | + CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME; + client_reg.event_handler = &dio24_event; + client_reg.Version = 0x0210; + client_reg.event_callback_args.client_data = link; + ret = CardServices(RegisterClient, &link->handle, &client_reg); + if (ret != CS_SUCCESS) { + cs_error(link->handle, RegisterClient, ret); + dio24_cs_detach(link); + return NULL; + } + + return link; +} /* dio24_cs_attach */ + +/*====================================================================== + + This deletes a driver "instance". The device is de-registered + with Card Services. If it has been released, all local data + structures are freed. Otherwise, the structures will be freed + when the device is released. + +======================================================================*/ + +static void dio24_cs_detach(dev_link_t *link) +{ + dev_link_t **linkp; + + printk(KERN_INFO "ni_daq_dio24: HOLA SOY YO - cs-detach!\n"); + + DEBUG(0, "dio24_cs_detach(0x%p)\n", link); + + /* Locate device structure */ + for (linkp = &pcmcia_dev_list; *linkp; linkp = &(*linkp)->next) + if (*linkp == link) break; + if (*linkp == NULL) + return; + + /* + If the device is currently configured and active, we won't + actually delete it yet. Instead, it is marked so that when + the release() function is called, that will trigger a proper + detach(). + */ + if (link->state & DEV_CONFIG) { +#ifdef PCMCIA_DEBUG + printk(KERN_DEBUG "ni_daq_dio24: detach postponed, '%s' " + "still locked\n", link->dev->dev_name); +#endif + link->state |= DEV_STALE_LINK; + return; + } + + /* Break the link with Card Services */ + if (link->handle) + CardServices(DeregisterClient, link->handle); + + /* Unlink device structure, and free it */ + *linkp = link->next; + /* This points to the parent local_info_t struct */ + kfree(link->priv); + +} /* dio24_cs_detach */ + +/*====================================================================== + + dio24_config() is scheduled to run after a CARD_INSERTION event + is received, to configure the PCMCIA socket, and to make the + device available to the system. + +======================================================================*/ + +#define CS_CHECK(fn, args...) \ +while ((last_ret=CardServices(last_fn=(fn),args))!=0) goto cs_failed + +#define CFG_CHECK(fn, args...) \ +if (CardServices(fn, args) != 0) goto next_entry + +static void dio24_config(dev_link_t *link) +{ + client_handle_t handle = link->handle; + local_info_t *dev = link->priv; + tuple_t tuple; + cisparse_t parse; + int last_fn, last_ret; + u_char buf[64]; + config_info_t conf; + win_req_t req; + memreq_t map; + cistpl_cftable_entry_t dflt = { 0 }; + + printk(KERN_INFO "ni_daq_dio24: HOLA SOY YO! - config\n"); + + DEBUG(0, "dio24_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; + CS_CHECK(GetFirstTuple, handle, &tuple); + CS_CHECK(GetTupleData, handle, &tuple); + CS_CHECK(ParseTuple, handle, &tuple, &parse); + link->conf.ConfigBase = parse.config.base; + link->conf.Present = parse.config.rmask[0]; + + /* Configure card */ + link->state |= DEV_CONFIG; + + /* Look up the current Vcc */ + CS_CHECK(GetConfigurationInfo, handle, &conf); + link->conf.Vcc = conf.Vcc; + + /* + 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; + CS_CHECK(GetFirstTuple, handle, &tuple); + while (1) { + cistpl_cftable_entry_t *cfg = &(parse.cftable_entry); + CFG_CHECK(GetTupleData, handle, &tuple); + CFG_CHECK(ParseTuple, handle, &tuple, &parse); + + 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; + } + + /* Use power settings for Vcc and Vpp if present */ + /* Note that the CIS values need to be rescaled */ + if (cfg->vcc.present & (1<vcc.param[CISTPL_POWER_VNOM]/10000) + goto next_entry; + } else if (dflt.vcc.present & (1<vpp1.present & (1<conf.Vpp1 = link->conf.Vpp2 = + cfg->vpp1.param[CISTPL_POWER_VNOM]/10000; + else if (dflt.vpp1.present & (1<conf.Vpp1 = link->conf.Vpp2 = + dflt.vpp1.param[CISTPL_POWER_VNOM]/10000; + + /* 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 */ + CFG_CHECK(RequestIO, link->handle, &link->io); + } + + /* + Now set up a common memory window, if needed. There is room + in the dev_link_t structure for one memory window handle, + but if the base addresses need to be saved, or if multiple + windows are needed, the info should go in the private data + structure for this device. + + Note that the memory window base is a physical address, and + needs to be mapped to virtual space with ioremap() before it + is used. + */ + if ((cfg->mem.nwin > 0) || (dflt.mem.nwin > 0)) { + cistpl_mem_t *mem = + (cfg->mem.nwin) ? &cfg->mem : &dflt.mem; + req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM; + req.Attributes |= WIN_ENABLE; + req.Base = mem->win[0].host_addr; + req.Size = mem->win[0].len; + if (req.Size < 0x1000) + req.Size = 0x1000; + req.AccessSpeed = 0; + link->win = (window_handle_t)link->handle; + CFG_CHECK(RequestWindow, &link->win, &req); + map.Page = 0; map.CardOffset = mem->win[0].card_addr; + CFG_CHECK(MapMemPage, link->win, &map); + } + /* If we got this far, we're cool! */ + break; + + next_entry: + if (link->io.NumPorts1) + CardServices(ReleaseIO, link->handle, &link->io); + CS_CHECK(GetNextTuple, handle, &tuple); + } + + /* + 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) + CS_CHECK(RequestIRQ, link->handle, &link->irq); + + /* + 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. + */ + CS_CHECK(RequestConfiguration, link->handle, &link->conf); + + /* + 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, "ni_daq_dio24"); + dev->node.major = dev->node.minor = 0; + link->dev = &dev->node; + + /* Finally, report what we've done */ + printk(KERN_INFO "%s: index 0x%02x: Vcc %d.%d", + dev->node.dev_name, link->conf.ConfigIndex, + link->conf.Vcc/10, link->conf.Vcc%10); + if (link->conf.Vpp1) + printk(", Vpp %d.%d", link->conf.Vpp1/10, link->conf.Vpp1%10); + if (link->conf.Attributes & CONF_ENABLE_IRQ) + printk(", irq %d", 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); + if (link->win) + printk(", mem 0x%06lx-0x%06lx", req.Base, + req.Base+req.Size-1); + printk("\n"); + + link->state &= ~DEV_CONFIG_PENDING; + return; + +cs_failed: + cs_error(link->handle, last_fn, last_ret); + printk(KERN_INFO "Fallo"); + dio24_release((u_long)link); + +} /* dio24_config */ + +/*====================================================================== + + After a card is removed, dio24_release() will unregister the + device, and release the PCMCIA configuration. If the device is + still open, this will be postponed until it is closed. + +======================================================================*/ + +static void dio24_release(u_long arg) +{ + dev_link_t *link = (dev_link_t *)arg; + + DEBUG(0, "dio24_release(0x%p)\n", link); + + /* + If the device is currently in use, we won't release until it + is actually closed, because until then, we can't be sure that + no one will try to access the device or its data structures. + */ + if (link->open) { + DEBUG(1, "ni_dio24: release postponed, '%s' still open\n", + link->dev->dev_name); + link->state |= DEV_STALE_CONFIG; + return; + } + + /* Unlink the device chain */ + link->dev = NULL; + + /* + In a normal driver, additional code may be needed to release + other kernel data structures associated with this device. + */ + + /* Don't bother checking to see if these succeed or not */ + if (link->win) + CardServices(ReleaseWindow, link->win); + CardServices(ReleaseConfiguration, link->handle); + if (link->io.NumPorts1) + CardServices(ReleaseIO, link->handle, &link->io); + if (link->irq.AssignedIRQ) + CardServices(ReleaseIRQ, link->handle, &link->irq); + link->state &= ~DEV_CONFIG; + + if (link->state & DEV_STALE_LINK) + dio24_cs_detach(link); + +} /* dio24_release */ + +/*====================================================================== + + The card status event handler. Mostly, this schedules other + stuff to run after an event is received. + + When a CARD_REMOVAL event is received, we immediately set a + private flag to block future accesses to this device. All the + functions that actually access the device should check this flag + to make sure the card is still present. + +======================================================================*/ + +static int dio24_event(event_t event, int priority, + event_callback_args_t *args) +{ + dev_link_t *link = args->client_data; + local_info_t *dev = link->priv; + + DEBUG(1, "dio24_event(0x%06x)\n", event); + + switch (event) { + case CS_EVENT_CARD_REMOVAL: + link->state &= ~DEV_PRESENT; + if (link->state & DEV_CONFIG) { + ((local_info_t *)link->priv)->stop = 1; + mod_timer(&link->release, jiffies + HZ/20); + } + break; + case CS_EVENT_CARD_INSERTION: + link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; + dev->bus = args->bus; + dio24_config(link); + break; + case CS_EVENT_PM_SUSPEND: + link->state |= DEV_SUSPEND; + /* Fall through... */ + case CS_EVENT_RESET_PHYSICAL: + /* Mark the device as stopped, to block IO until later */ + dev->stop = 1; + if (link->state & DEV_CONFIG) + CardServices(ReleaseConfiguration, link->handle); + break; + case CS_EVENT_PM_RESUME: + link->state &= ~DEV_SUSPEND; + /* Fall through... */ + case CS_EVENT_CARD_RESET: + if (link->state & DEV_CONFIG) + CardServices(RequestConfiguration, link->handle, &link->conf); + dev->stop = 0; + /* + In a normal driver, additional code may go here to restore + the device state and restart IO. + */ + break; + } + return 0; +} /* dio24_event */ + +/*====================================================================*/ + +static int __init init_dio24_cs(void) +{ + printk("ni_daq_dio24: HOLA SOY YO!\n"); + servinfo_t serv; + DEBUG(0, "%s\n", version); + CardServices(GetCardServicesInfo, &serv); + if (serv.Revision != CS_RELEASE_CODE) { + printk(KERN_NOTICE "ni_daq_dio24: Card Services release " + "does not match! Vaya putada\n"); + return -1; + } + register_pccard_driver(&dev_info, &dio24_cs_attach, &dio24_cs_detach); + return 0; +} + +static void __exit exit_dio24_cs(void) +{ + DEBUG(0, "ni_dio24: unloading\n"); + unregister_pccard_driver(&dev_info); + while (pcmcia_dev_list != NULL) { + del_timer(&pcmcia_dev_list->release); + if (pcmcia_dev_list->state & DEV_CONFIG) + dio24_release((u_long)pcmcia_dev_list); + dio24_cs_detach(pcmcia_dev_list); + } +} + +int init_module(void) +{ + int ret; + + printk("ni_daq_dio24: HOLA SOY YO el primero!\n"); + ret = init_dio24_cs(); + if(ret < 0) + return ret; + + return comedi_driver_register(&driver_dio24); +} + +void cleanup_module(void) +{ + printk("ni_daq_dio24: ADIOS SOY YO el primero!\n"); + exit_dio24_cs(); + comedi_driver_unregister(&driver_dio24); +} + +#else +COMEDI_INITCLEANUP(driver_dio24); + +#endif // CONFIG_PCMCIA