2008-11-05 04:29:31 +00:00
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/*
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include/linux/comedidev.h
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header file for kernel-only structures, variables, and constants
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COMEDI - Linux Control and Measurement Device Interface
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Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _COMEDIDEV_H
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#define _COMEDIDEV_H
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/kdev_t.h>
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#include <linux/slab.h>
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#include <linux/errno.h>
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#include <linux/spinlock.h>
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#include <linux/mutex.h>
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#include <linux/wait.h>
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#include <linux/mm.h>
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#include <linux/init.h>
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#include <linux/vmalloc.h>
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2008-11-14 22:20:56 +00:00
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#include "interrupt.h"
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2008-11-05 04:29:31 +00:00
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#include <linux/dma-mapping.h>
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2008-11-14 00:36:22 +00:00
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#include <linux/uaccess.h>
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#include <linux/io.h>
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2008-11-05 04:29:31 +00:00
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#include "comedi.h"
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2008-11-14 00:36:22 +00:00
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#define DPRINTK(format, args...) do { \
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if (comedi_debug) \
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printk(KERN_DEBUG "comedi: " format , ## args); \
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} while (0)
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2008-11-05 04:29:31 +00:00
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2008-11-14 00:36:22 +00:00
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#define COMEDI_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + (c))
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#define COMEDI_VERSION_CODE COMEDI_VERSION(COMEDI_MAJORVERSION, COMEDI_MINORVERSION, COMEDI_MICROVERSION)
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2008-11-05 04:29:31 +00:00
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#define COMEDI_RELEASE VERSION
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#define COMEDI_INITCLEANUP_NOMODULE(x) \
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static int __init x ## _init_module(void) \
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2009-03-17 02:04:12 +00:00
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{return comedi_driver_register(&(x)); } \
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2008-11-05 04:29:31 +00:00
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static void __exit x ## _cleanup_module(void) \
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2009-03-17 02:04:12 +00:00
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{comedi_driver_unregister(&(x)); } \
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2008-11-05 04:29:31 +00:00
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module_init(x ## _init_module); \
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module_exit(x ## _cleanup_module); \
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#define COMEDI_MODULE_MACROS \
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MODULE_AUTHOR("Comedi http://www.comedi.org"); \
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MODULE_DESCRIPTION("Comedi low-level driver"); \
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MODULE_LICENSE("GPL"); \
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#define COMEDI_INITCLEANUP(x) \
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COMEDI_MODULE_MACROS \
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COMEDI_INITCLEANUP_NOMODULE(x)
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#define COMEDI_PCI_INITCLEANUP_NOMODULE(comedi_driver, pci_id_table) \
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static int __devinit comedi_driver ## _pci_probe(struct pci_dev *dev, \
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const struct pci_device_id *ent) \
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{ \
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return comedi_pci_auto_config(dev, comedi_driver.driver_name); \
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} \
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static void __devexit comedi_driver ## _pci_remove(struct pci_dev *dev) \
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{ \
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comedi_pci_auto_unconfig(dev); \
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} \
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static struct pci_driver comedi_driver ## _pci_driver = \
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{ \
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.id_table = pci_id_table, \
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2008-11-14 00:36:22 +00:00
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.probe = &comedi_driver ## _pci_probe, \
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.remove = __devexit_p(&comedi_driver ## _pci_remove) \
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2008-11-05 04:29:31 +00:00
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}; \
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static int __init comedi_driver ## _init_module(void) \
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{ \
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int retval; \
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2008-11-14 00:36:22 +00:00
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retval = comedi_driver_register(&comedi_driver); \
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if (retval < 0) \
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return retval; \
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comedi_driver ## _pci_driver.name = (char *)comedi_driver.driver_name; \
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return pci_register_driver(&comedi_driver ## _pci_driver); \
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2008-11-05 04:29:31 +00:00
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} \
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static void __exit comedi_driver ## _cleanup_module(void) \
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{ \
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2008-11-14 00:36:22 +00:00
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pci_unregister_driver(&comedi_driver ## _pci_driver); \
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comedi_driver_unregister(&comedi_driver); \
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2008-11-05 04:29:31 +00:00
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} \
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module_init(comedi_driver ## _init_module); \
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module_exit(comedi_driver ## _cleanup_module);
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#define COMEDI_PCI_INITCLEANUP(comedi_driver, pci_id_table) \
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COMEDI_MODULE_MACROS \
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COMEDI_PCI_INITCLEANUP_NOMODULE(comedi_driver, pci_id_table)
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#define PCI_VENDOR_ID_INOVA 0x104c
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#define PCI_VENDOR_ID_NATINST 0x1093
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#define PCI_VENDOR_ID_DATX 0x1116
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#define PCI_VENDOR_ID_COMPUTERBOARDS 0x1307
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#define PCI_VENDOR_ID_ADVANTECH 0x13fe
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#define PCI_VENDOR_ID_RTD 0x1435
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#define PCI_VENDOR_ID_AMPLICON 0x14dc
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#define PCI_VENDOR_ID_ADLINK 0x144a
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#define PCI_VENDOR_ID_ICP 0x104c
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#define PCI_VENDOR_ID_CONTEC 0x1221
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#define PCI_VENDOR_ID_MEILHAUS 0x1402
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#define COMEDI_NUM_MINORS 0x100
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#define COMEDI_NUM_BOARD_MINORS 0x30
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#define COMEDI_FIRST_SUBDEVICE_MINOR COMEDI_NUM_BOARD_MINORS
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typedef struct comedi_device_struct comedi_device;
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typedef struct comedi_subdevice_struct comedi_subdevice;
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typedef struct comedi_async_struct comedi_async;
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typedef struct comedi_driver_struct comedi_driver;
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typedef struct comedi_lrange_struct comedi_lrange;
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typedef struct device device_create_result_type;
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#define COMEDI_DEVICE_CREATE(cs, parent, devt, drvdata, device, fmt...) \
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device_create(cs, ((parent) ? (parent) : (device)), devt, drvdata, fmt)
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struct comedi_subdevice_struct {
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comedi_device *device;
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int type;
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int n_chan;
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volatile int subdev_flags;
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int len_chanlist; /* maximum length of channel/gain list */
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void *private;
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comedi_async *async;
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void *lock;
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void *busy;
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unsigned runflags;
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spinlock_t spin_lock;
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int io_bits;
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lsampl_t maxdata; /* if maxdata==0, use list */
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const lsampl_t *maxdata_list; /* list is channel specific */
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unsigned int flags;
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const unsigned int *flaglist;
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unsigned int settling_time_0;
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const comedi_lrange *range_table;
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const comedi_lrange *const *range_table_list;
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unsigned int *chanlist; /* driver-owned chanlist (not used) */
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int (*insn_read) (comedi_device *, comedi_subdevice *, comedi_insn *,
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lsampl_t *);
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int (*insn_write) (comedi_device *, comedi_subdevice *, comedi_insn *,
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lsampl_t *);
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int (*insn_bits) (comedi_device *, comedi_subdevice *, comedi_insn *,
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lsampl_t *);
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int (*insn_config) (comedi_device *, comedi_subdevice *, comedi_insn *,
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lsampl_t *);
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int (*do_cmd) (comedi_device *, comedi_subdevice *);
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int (*do_cmdtest) (comedi_device *, comedi_subdevice *, comedi_cmd *);
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int (*poll) (comedi_device *, comedi_subdevice *);
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int (*cancel) (comedi_device *, comedi_subdevice *);
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2008-11-14 00:36:22 +00:00
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/* int (*do_lock)(comedi_device *,comedi_subdevice *); */
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/* int (*do_unlock)(comedi_device *,comedi_subdevice *); */
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2008-11-05 04:29:31 +00:00
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/* called when the buffer changes */
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2008-11-14 00:36:22 +00:00
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int (*buf_change) (comedi_device *dev, comedi_subdevice *s,
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2008-11-05 04:29:31 +00:00
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unsigned long new_size);
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2008-11-14 00:36:22 +00:00
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void (*munge) (comedi_device *dev, comedi_subdevice *s, void *data,
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2008-11-05 04:29:31 +00:00
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unsigned int num_bytes, unsigned int start_chan_index);
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enum dma_data_direction async_dma_dir;
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unsigned int state;
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device_create_result_type *class_dev;
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int minor;
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};
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struct comedi_buf_page {
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void *virt_addr;
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dma_addr_t dma_addr;
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};
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struct comedi_async_struct {
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comedi_subdevice *subdevice;
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void *prealloc_buf; /* pre-allocated buffer */
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unsigned int prealloc_bufsz; /* buffer size, in bytes */
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struct comedi_buf_page *buf_page_list; /* virtual and dma address of each page */
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unsigned n_buf_pages; /* num elements in buf_page_list */
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unsigned int max_bufsize; /* maximum buffer size, bytes */
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unsigned int mmap_count; /* current number of mmaps of prealloc_buf */
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unsigned int buf_write_count; /* byte count for writer (write completed) */
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unsigned int buf_write_alloc_count; /* byte count for writer (allocated for writing) */
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unsigned int buf_read_count; /* byte count for reader (read completed) */
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unsigned int buf_read_alloc_count; /* byte count for reader (allocated for reading) */
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unsigned int buf_write_ptr; /* buffer marker for writer */
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unsigned int buf_read_ptr; /* buffer marker for reader */
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unsigned int cur_chan; /* useless channel marker for interrupt */
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/* number of bytes that have been received for current scan */
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unsigned int scan_progress;
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/* keeps track of where we are in chanlist as for munging */
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unsigned int munge_chan;
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/* number of bytes that have been munged */
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unsigned int munge_count;
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/* buffer marker for munging */
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unsigned int munge_ptr;
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unsigned int events; /* events that have occurred */
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comedi_cmd cmd;
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wait_queue_head_t wait_head;
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2008-11-14 00:36:22 +00:00
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/* callback stuff */
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2008-11-05 04:29:31 +00:00
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unsigned int cb_mask;
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int (*cb_func) (unsigned int flags, void *);
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void *cb_arg;
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2008-11-14 00:36:22 +00:00
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int (*inttrig) (comedi_device *dev, comedi_subdevice *s,
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unsigned int x);
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2008-11-05 04:29:31 +00:00
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};
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struct comedi_driver_struct {
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struct comedi_driver_struct *next;
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const char *driver_name;
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struct module *module;
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int (*attach) (comedi_device *, comedi_devconfig *);
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int (*detach) (comedi_device *);
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/* number of elements in board_name and board_id arrays */
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unsigned int num_names;
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const char *const *board_name;
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/* offset in bytes from one board name pointer to the next */
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int offset;
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};
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struct comedi_device_struct {
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int use_count;
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comedi_driver *driver;
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void *private;
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device_create_result_type *class_dev;
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int minor;
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2008-11-14 00:36:22 +00:00
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/* hw_dev is passed to dma_alloc_coherent when allocating async buffers
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* for subdevices that have async_dma_dir set to something other than
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* DMA_NONE */
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2008-11-05 04:29:31 +00:00
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struct device *hw_dev;
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const char *board_name;
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const void *board_ptr;
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int attached;
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int rt;
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spinlock_t spinlock;
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struct mutex mutex;
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int in_request_module;
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int n_subdevices;
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comedi_subdevice *subdevices;
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/* dumb */
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unsigned long iobase;
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unsigned int irq;
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comedi_subdevice *read_subdev;
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comedi_subdevice *write_subdev;
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struct fasync_struct *async_queue;
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2008-11-14 00:36:22 +00:00
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void (*open) (comedi_device *dev);
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void (*close) (comedi_device *dev);
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2008-11-05 04:29:31 +00:00
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};
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struct comedi_device_file_info {
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comedi_device *device;
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comedi_subdevice *read_subdevice;
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comedi_subdevice *write_subdevice;
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};
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#ifdef CONFIG_COMEDI_DEBUG
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extern int comedi_debug;
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#else
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static const int comedi_debug;
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#endif
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/*
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* function prototypes
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*/
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2008-11-14 00:36:22 +00:00
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void comedi_event(comedi_device *dev, comedi_subdevice *s);
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void comedi_error(const comedi_device *dev, const char *s);
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2008-11-05 04:29:31 +00:00
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/* we can expand the number of bits used to encode devices/subdevices into
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the minor number soon, after more distros support > 8 bit minor numbers
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(like after Debian Etch gets released) */
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enum comedi_minor_bits {
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COMEDI_DEVICE_MINOR_MASK = 0xf,
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COMEDI_SUBDEVICE_MINOR_MASK = 0xf0
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};
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static const unsigned COMEDI_SUBDEVICE_MINOR_SHIFT = 4;
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static const unsigned COMEDI_SUBDEVICE_MINOR_OFFSET = 1;
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2008-11-14 00:36:22 +00:00
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struct comedi_device_file_info *comedi_get_device_file_info(unsigned minor);
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2008-11-05 04:29:31 +00:00
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2008-11-14 00:36:22 +00:00
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static inline comedi_subdevice *comedi_get_read_subdevice(
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const struct comedi_device_file_info *info)
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2008-11-05 04:29:31 +00:00
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{
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2008-11-14 00:36:22 +00:00
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if (info->read_subdevice)
|
|
|
|
return info->read_subdevice;
|
|
|
|
if (info->device == NULL)
|
|
|
|
return NULL;
|
2008-11-05 04:29:31 +00:00
|
|
|
return info->device->read_subdev;
|
|
|
|
}
|
|
|
|
|
2008-11-14 00:36:22 +00:00
|
|
|
static inline comedi_subdevice *comedi_get_write_subdevice(
|
|
|
|
const struct comedi_device_file_info *info)
|
2008-11-05 04:29:31 +00:00
|
|
|
{
|
2008-11-14 00:36:22 +00:00
|
|
|
if (info->write_subdevice)
|
|
|
|
return info->write_subdevice;
|
|
|
|
if (info->device == NULL)
|
|
|
|
return NULL;
|
2008-11-05 04:29:31 +00:00
|
|
|
return info->device->write_subdev;
|
|
|
|
}
|
|
|
|
|
2008-11-14 00:36:22 +00:00
|
|
|
void comedi_device_detach(comedi_device *dev);
|
|
|
|
int comedi_device_attach(comedi_device *dev, comedi_devconfig *it);
|
2008-11-05 04:29:31 +00:00
|
|
|
int comedi_driver_register(comedi_driver *);
|
|
|
|
int comedi_driver_unregister(comedi_driver *);
|
|
|
|
|
|
|
|
void init_polling(void);
|
|
|
|
void cleanup_polling(void);
|
|
|
|
void start_polling(comedi_device *);
|
|
|
|
void stop_polling(comedi_device *);
|
|
|
|
|
2008-11-14 00:36:22 +00:00
|
|
|
int comedi_buf_alloc(comedi_device *dev, comedi_subdevice *s, unsigned long
|
2008-11-05 04:29:31 +00:00
|
|
|
new_size);
|
|
|
|
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
|
|
void comedi_proc_init(void);
|
|
|
|
void comedi_proc_cleanup(void);
|
|
|
|
#else
|
|
|
|
static inline void comedi_proc_init(void)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
static inline void comedi_proc_cleanup(void)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* subdevice runflags */
|
|
|
|
enum subdevice_runflags {
|
|
|
|
SRF_USER = 0x00000001,
|
|
|
|
SRF_RT = 0x00000002,
|
2008-11-14 00:36:22 +00:00
|
|
|
/* indicates an COMEDI_CB_ERROR event has occurred since the last
|
|
|
|
* command was started */
|
2008-11-05 04:29:31 +00:00
|
|
|
SRF_ERROR = 0x00000004,
|
|
|
|
SRF_RUNNING = 0x08000000
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
various internal comedi functions
|
|
|
|
*/
|
|
|
|
|
2008-11-14 00:36:22 +00:00
|
|
|
int do_rangeinfo_ioctl(comedi_device *dev, comedi_rangeinfo *arg);
|
|
|
|
int check_chanlist(comedi_subdevice *s, int n, unsigned int *chanlist);
|
|
|
|
void comedi_set_subdevice_runflags(comedi_subdevice *s, unsigned mask,
|
2008-11-05 04:29:31 +00:00
|
|
|
unsigned bits);
|
2008-11-14 00:36:22 +00:00
|
|
|
unsigned comedi_get_subdevice_runflags(comedi_subdevice *s);
|
|
|
|
int insn_inval(comedi_device *dev, comedi_subdevice *s,
|
|
|
|
comedi_insn *insn, lsampl_t *data);
|
2008-11-05 04:29:31 +00:00
|
|
|
|
|
|
|
/* range stuff */
|
|
|
|
|
2008-11-14 00:36:22 +00:00
|
|
|
#define RANGE(a, b) {(a)*1e6, (b)*1e6, 0}
|
|
|
|
#define RANGE_ext(a, b) {(a)*1e6, (b)*1e6, RF_EXTERNAL}
|
|
|
|
#define RANGE_mA(a, b) {(a)*1e6, (b)*1e6, UNIT_mA}
|
|
|
|
#define RANGE_unitless(a, b) {(a)*1e6, (b)*1e6, 0} /* XXX */
|
|
|
|
#define BIP_RANGE(a) {-(a)*1e6, (a)*1e6, 0}
|
|
|
|
#define UNI_RANGE(a) {0, (a)*1e6, 0}
|
2008-11-05 04:29:31 +00:00
|
|
|
|
|
|
|
extern const comedi_lrange range_bipolar10;
|
|
|
|
extern const comedi_lrange range_bipolar5;
|
|
|
|
extern const comedi_lrange range_bipolar2_5;
|
|
|
|
extern const comedi_lrange range_unipolar10;
|
|
|
|
extern const comedi_lrange range_unipolar5;
|
|
|
|
extern const comedi_lrange range_unknown;
|
|
|
|
|
|
|
|
#define range_digital range_unipolar5
|
|
|
|
|
|
|
|
#if __GNUC__ >= 3
|
|
|
|
#define GCC_ZERO_LENGTH_ARRAY
|
|
|
|
#else
|
|
|
|
#define GCC_ZERO_LENGTH_ARRAY 0
|
|
|
|
#endif
|
|
|
|
|
|
|
|
struct comedi_lrange_struct {
|
|
|
|
int length;
|
|
|
|
comedi_krange range[GCC_ZERO_LENGTH_ARRAY];
|
|
|
|
};
|
|
|
|
|
|
|
|
/* some silly little inline functions */
|
|
|
|
|
2008-11-14 00:36:22 +00:00
|
|
|
static inline int alloc_subdevices(comedi_device *dev,
|
|
|
|
unsigned int num_subdevices)
|
2008-11-05 04:29:31 +00:00
|
|
|
{
|
|
|
|
unsigned i;
|
|
|
|
|
|
|
|
dev->n_subdevices = num_subdevices;
|
|
|
|
dev->subdevices =
|
|
|
|
kcalloc(num_subdevices, sizeof(comedi_subdevice), GFP_KERNEL);
|
|
|
|
if (!dev->subdevices)
|
|
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < num_subdevices; ++i) {
|
|
|
|
dev->subdevices[i].device = dev;
|
|
|
|
dev->subdevices[i].async_dma_dir = DMA_NONE;
|
|
|
|
spin_lock_init(&dev->subdevices[i].spin_lock);
|
|
|
|
dev->subdevices[i].minor = -1;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-11-14 00:36:22 +00:00
|
|
|
static inline int alloc_private(comedi_device *dev, int size)
|
2008-11-05 04:29:31 +00:00
|
|
|
{
|
|
|
|
dev->private = kzalloc(size, GFP_KERNEL);
|
|
|
|
if (!dev->private)
|
|
|
|
return -ENOMEM;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-11-14 00:36:22 +00:00
|
|
|
static inline unsigned int bytes_per_sample(const comedi_subdevice *subd)
|
2008-11-05 04:29:31 +00:00
|
|
|
{
|
|
|
|
if (subd->subdev_flags & SDF_LSAMPL)
|
|
|
|
return sizeof(lsampl_t);
|
|
|
|
else
|
|
|
|
return sizeof(sampl_t);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* must be used in attach to set dev->hw_dev if you wish to dma directly
|
|
|
|
into comedi's buffer */
|
2008-11-14 00:36:22 +00:00
|
|
|
static inline void comedi_set_hw_dev(comedi_device *dev, struct device *hw_dev)
|
2008-11-05 04:29:31 +00:00
|
|
|
{
|
2008-11-14 00:36:22 +00:00
|
|
|
if (dev->hw_dev)
|
2008-11-05 04:29:31 +00:00
|
|
|
put_device(dev->hw_dev);
|
2008-11-14 00:36:22 +00:00
|
|
|
|
2008-11-05 04:29:31 +00:00
|
|
|
dev->hw_dev = hw_dev;
|
|
|
|
if (dev->hw_dev) {
|
|
|
|
dev->hw_dev = get_device(dev->hw_dev);
|
|
|
|
BUG_ON(dev->hw_dev == NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-11-14 00:36:22 +00:00
|
|
|
int comedi_buf_put(comedi_async *async, sampl_t x);
|
|
|
|
int comedi_buf_get(comedi_async *async, sampl_t *x);
|
2008-11-05 04:29:31 +00:00
|
|
|
|
2008-11-14 00:36:22 +00:00
|
|
|
unsigned int comedi_buf_write_n_available(comedi_async *async);
|
|
|
|
unsigned int comedi_buf_write_alloc(comedi_async *async, unsigned int nbytes);
|
|
|
|
unsigned int comedi_buf_write_alloc_strict(comedi_async *async,
|
2008-11-05 04:29:31 +00:00
|
|
|
unsigned int nbytes);
|
2008-11-14 00:36:22 +00:00
|
|
|
unsigned comedi_buf_write_free(comedi_async *async, unsigned int nbytes);
|
|
|
|
unsigned comedi_buf_read_alloc(comedi_async *async, unsigned nbytes);
|
|
|
|
unsigned comedi_buf_read_free(comedi_async *async, unsigned int nbytes);
|
|
|
|
unsigned int comedi_buf_read_n_available(comedi_async *async);
|
|
|
|
void comedi_buf_memcpy_to(comedi_async *async, unsigned int offset,
|
2008-11-05 04:29:31 +00:00
|
|
|
const void *source, unsigned int num_bytes);
|
2008-11-14 00:36:22 +00:00
|
|
|
void comedi_buf_memcpy_from(comedi_async *async, unsigned int offset,
|
2008-11-05 04:29:31 +00:00
|
|
|
void *destination, unsigned int num_bytes);
|
2008-11-14 00:36:22 +00:00
|
|
|
static inline unsigned comedi_buf_write_n_allocated(comedi_async *async)
|
2008-11-05 04:29:31 +00:00
|
|
|
{
|
|
|
|
return async->buf_write_alloc_count - async->buf_write_count;
|
|
|
|
}
|
2008-11-14 00:36:22 +00:00
|
|
|
static inline unsigned comedi_buf_read_n_allocated(comedi_async *async)
|
2008-11-05 04:29:31 +00:00
|
|
|
{
|
|
|
|
return async->buf_read_alloc_count - async->buf_read_count;
|
|
|
|
}
|
|
|
|
|
2008-11-14 00:36:22 +00:00
|
|
|
void comedi_reset_async_buf(comedi_async *async);
|
2008-11-05 04:29:31 +00:00
|
|
|
|
|
|
|
static inline void *comedi_aux_data(int options[], int n)
|
|
|
|
{
|
|
|
|
unsigned long address;
|
|
|
|
unsigned long addressLow;
|
|
|
|
int bit_shift;
|
|
|
|
if (sizeof(int) >= sizeof(void *))
|
|
|
|
address = options[COMEDI_DEVCONF_AUX_DATA_LO];
|
|
|
|
else {
|
|
|
|
address = options[COMEDI_DEVCONF_AUX_DATA_HI];
|
|
|
|
bit_shift = sizeof(int) * 8;
|
|
|
|
address <<= bit_shift;
|
|
|
|
addressLow = options[COMEDI_DEVCONF_AUX_DATA_LO];
|
|
|
|
addressLow &= (1UL << bit_shift) - 1;
|
|
|
|
address |= addressLow;
|
|
|
|
}
|
|
|
|
if (n >= 1)
|
|
|
|
address += options[COMEDI_DEVCONF_AUX_DATA0_LENGTH];
|
|
|
|
if (n >= 2)
|
|
|
|
address += options[COMEDI_DEVCONF_AUX_DATA1_LENGTH];
|
|
|
|
if (n >= 3)
|
|
|
|
address += options[COMEDI_DEVCONF_AUX_DATA2_LENGTH];
|
|
|
|
BUG_ON(n > 3);
|
|
|
|
return (void *)address;
|
|
|
|
}
|
|
|
|
|
|
|
|
int comedi_alloc_board_minor(struct device *hardware_device);
|
|
|
|
void comedi_free_board_minor(unsigned minor);
|
|
|
|
int comedi_alloc_subdevice_minor(comedi_device *dev, comedi_subdevice *s);
|
|
|
|
void comedi_free_subdevice_minor(comedi_subdevice *s);
|
|
|
|
int comedi_pci_auto_config(struct pci_dev *pcidev, const char *board_name);
|
|
|
|
void comedi_pci_auto_unconfig(struct pci_dev *pcidev);
|
2008-12-08 23:30:13 +00:00
|
|
|
struct usb_device; /* forward declaration */
|
|
|
|
int comedi_usb_auto_config(struct usb_device *usbdev, const char *board_name);
|
|
|
|
void comedi_usb_auto_unconfig(struct usb_device *usbdev);
|
2008-11-05 04:29:31 +00:00
|
|
|
|
|
|
|
#include "comedi_rt.h"
|
|
|
|
|
|
|
|
#endif /* _COMEDIDEV_H */
|