diff options
Diffstat (limited to 'drivers/staging/comedi/drivers.c')
| -rw-r--r-- | drivers/staging/comedi/drivers.c | 846 |
1 files changed, 846 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c new file mode 100644 index 000000000000..36a93b95e3f2 --- /dev/null +++ b/drivers/staging/comedi/drivers.c @@ -0,0 +1,846 @@ +/* + module/drivers.c + functions for manipulating drivers + + COMEDI - Linux Control and Measurement Device Interface + Copyright (C) 1997-2000 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. + +*/ + +#define _GNU_SOURCE + +#define __NO_VERSION__ +#include "comedi_fops.h" +#include <linux/device.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/fcntl.h> +#include <linux/delay.h> +#include <linux/ioport.h> +#include <linux/mm.h> +#include <linux/slab.h> +#include "comedidev.h" +#include "wrapper.h" +#include <linux/highmem.h> /* for SuSE brokenness */ +#include <linux/vmalloc.h> +#include <linux/cdev.h> +#include <linux/dma-mapping.h> + +#include <asm/io.h> +#include <asm/system.h> + +static int postconfig(comedi_device * dev); +static int insn_rw_emulate_bits(comedi_device * dev, comedi_subdevice * s, + comedi_insn * insn, lsampl_t * data); +static void *comedi_recognize(comedi_driver * driv, const char *name); +static void comedi_report_boards(comedi_driver * driv); +static int poll_invalid(comedi_device * dev, comedi_subdevice * s); +int comedi_buf_alloc(comedi_device * dev, comedi_subdevice * s, + unsigned long new_size); + +comedi_driver *comedi_drivers; + +int comedi_modprobe(int minor) +{ + return -EINVAL; +} + +static void cleanup_device(comedi_device * dev) +{ + int i; + comedi_subdevice *s; + + if (dev->subdevices) { + for (i = 0; i < dev->n_subdevices; i++) { + s = dev->subdevices + i; + comedi_free_subdevice_minor(s); + if (s->async) { + comedi_buf_alloc(dev, s, 0); + kfree(s->async); + } + } + kfree(dev->subdevices); + dev->subdevices = NULL; + dev->n_subdevices = 0; + } + if (dev->private) { + kfree(dev->private); + dev->private = NULL; + } + dev->driver = 0; + dev->board_name = NULL; + dev->board_ptr = NULL; + dev->iobase = 0; + dev->irq = 0; + dev->read_subdev = NULL; + dev->write_subdev = NULL; + dev->open = NULL; + dev->close = NULL; + comedi_set_hw_dev(dev, NULL); +} + +static void __comedi_device_detach(comedi_device * dev) +{ + dev->attached = 0; + if (dev->driver) { + dev->driver->detach(dev); + } else { + printk("BUG: dev->driver=NULL in comedi_device_detach()\n"); + } + cleanup_device(dev); +} + +void comedi_device_detach(comedi_device * dev) +{ + if (!dev->attached) + return; + __comedi_device_detach(dev); +} + +int comedi_device_attach(comedi_device * dev, comedi_devconfig * it) +{ + comedi_driver *driv; + int ret; + + if (dev->attached) + return -EBUSY; + + for (driv = comedi_drivers; driv; driv = driv->next) { + if (!try_module_get(driv->module)) { + printk("comedi: failed to increment module count, skipping\n"); + continue; + } + if (driv->num_names) { + dev->board_ptr = comedi_recognize(driv, it->board_name); + if (dev->board_ptr == NULL) { + module_put(driv->module); + continue; + } + } else { + if (strcmp(driv->driver_name, it->board_name)) { + module_put(driv->module); + continue; + } + } + //initialize dev->driver here so comedi_error() can be called from attach + dev->driver = driv; + ret = driv->attach(dev, it); + if (ret < 0) { + module_put(dev->driver->module); + __comedi_device_detach(dev); + return ret; + } + goto attached; + } + + // recognize has failed if we get here + // report valid board names before returning error + for (driv = comedi_drivers; driv; driv = driv->next) { + if (!try_module_get(driv->module)) { + printk("comedi: failed to increment module count\n"); + continue; + } + comedi_report_boards(driv); + module_put(driv->module); + } + return -EIO; + +attached: + /* do a little post-config cleanup */ + ret = postconfig(dev); + module_put(dev->driver->module); + if (ret < 0) { + __comedi_device_detach(dev); + return ret; + } + + if (!dev->board_name) { + printk("BUG: dev->board_name=<%p>\n", dev->board_name); + dev->board_name = "BUG"; + } + smp_wmb(); + dev->attached = 1; + + return 0; +} + +int comedi_driver_register(comedi_driver * driver) +{ + driver->next = comedi_drivers; + comedi_drivers = driver; + + return 0; +} + +int comedi_driver_unregister(comedi_driver * driver) +{ + comedi_driver *prev; + int i; + + /* check for devices using this driver */ + for (i = 0; i < COMEDI_NUM_BOARD_MINORS; i++) { + struct comedi_device_file_info *dev_file_info = comedi_get_device_file_info(i); + comedi_device *dev; + + if(dev_file_info == NULL) continue; + dev = dev_file_info->device; + + mutex_lock(&dev->mutex); + if (dev->attached && dev->driver == driver) { + if (dev->use_count) + printk("BUG! detaching device with use_count=%d\n", dev->use_count); + comedi_device_detach(dev); + } + mutex_unlock(&dev->mutex); + } + + if (comedi_drivers == driver) { + comedi_drivers = driver->next; + return 0; + } + + for (prev = comedi_drivers; prev->next; prev = prev->next) { + if (prev->next == driver) { + prev->next = driver->next; + return 0; + } + } + return -EINVAL; +} + +static int postconfig(comedi_device * dev) +{ + int i; + comedi_subdevice *s; + comedi_async *async = NULL; + int ret; + + for (i = 0; i < dev->n_subdevices; i++) { + s = dev->subdevices + i; + + if (s->type == COMEDI_SUBD_UNUSED) + continue; + + if (s->len_chanlist == 0) + s->len_chanlist = 1; + + if (s->do_cmd) { + BUG_ON((s->subdev_flags & (SDF_CMD_READ | + SDF_CMD_WRITE)) == 0); + BUG_ON(!s->do_cmdtest); + + async = kzalloc(sizeof(comedi_async), GFP_KERNEL); + if (async == NULL) { + printk("failed to allocate async struct\n"); + return -ENOMEM; + } + init_waitqueue_head(&async->wait_head); + async->subdevice = s; + s->async = async; + +#define DEFAULT_BUF_MAXSIZE (64*1024) +#define DEFAULT_BUF_SIZE (64*1024) + + async->max_bufsize = DEFAULT_BUF_MAXSIZE; + + async->prealloc_buf = NULL; + async->prealloc_bufsz = 0; + if (comedi_buf_alloc(dev, s, DEFAULT_BUF_SIZE) < 0) { + printk("Buffer allocation failed\n"); + return -ENOMEM; + } + if (s->buf_change) { + ret = s->buf_change(dev, s, DEFAULT_BUF_SIZE); + if (ret < 0) + return ret; + } + comedi_alloc_subdevice_minor(dev, s); + } + + if (!s->range_table && !s->range_table_list) + s->range_table = &range_unknown; + + if (!s->insn_read && s->insn_bits) + s->insn_read = insn_rw_emulate_bits; + if (!s->insn_write && s->insn_bits) + s->insn_write = insn_rw_emulate_bits; + + if (!s->insn_read) + s->insn_read = insn_inval; + if (!s->insn_write) + s->insn_write = insn_inval; + if (!s->insn_bits) + s->insn_bits = insn_inval; + if (!s->insn_config) + s->insn_config = insn_inval; + + if (!s->poll) + s->poll = poll_invalid; + } + + return 0; +} + +// generic recognize function for drivers that register their supported board names +void *comedi_recognize(comedi_driver * driv, const char *name) +{ + unsigned i; + const char *const *name_ptr = driv->board_name; + for (i = 0; i < driv->num_names; i++) { + if (strcmp(*name_ptr, name) == 0) + return (void *)name_ptr; + name_ptr = + (const char *const *)((const char *)name_ptr + + driv->offset); + } + + return NULL; +} + +void comedi_report_boards(comedi_driver * driv) +{ + unsigned int i; + const char *const *name_ptr; + + printk("comedi: valid board names for %s driver are:\n", + driv->driver_name); + + name_ptr = driv->board_name; + for (i = 0; i < driv->num_names; i++) { + printk(" %s\n", *name_ptr); + name_ptr = (const char **)((char *)name_ptr + driv->offset); + } + + if (driv->num_names == 0) + printk(" %s\n", driv->driver_name); +} + +static int poll_invalid(comedi_device * dev, comedi_subdevice * s) +{ + return -EINVAL; +} + +int insn_inval(comedi_device * dev, comedi_subdevice * s, + comedi_insn * insn, lsampl_t * data) +{ + return -EINVAL; +} + +static int insn_rw_emulate_bits(comedi_device * dev, comedi_subdevice * s, + comedi_insn * insn, lsampl_t * data) +{ + comedi_insn new_insn; + int ret; + static const unsigned channels_per_bitfield = 32; + + unsigned chan = CR_CHAN(insn->chanspec); + const unsigned base_bitfield_channel = + (chan < channels_per_bitfield) ? 0 : chan; + lsampl_t new_data[2]; + memset(new_data, 0, sizeof(new_data)); + memset(&new_insn, 0, sizeof(new_insn)); + new_insn.insn = INSN_BITS; + new_insn.chanspec = base_bitfield_channel; + new_insn.n = 2; + new_insn.data = new_data; + new_insn.subdev = insn->subdev; + + if (insn->insn == INSN_WRITE) { + if (!(s->subdev_flags & SDF_WRITABLE)) + return -EINVAL; + new_data[0] = 1 << (chan - base_bitfield_channel); /* mask */ + new_data[1] = data[0] ? (1 << (chan - base_bitfield_channel)) : 0; /* bits */ + } + + ret = s->insn_bits(dev, s, &new_insn, new_data); + if (ret < 0) + return ret; + + if (insn->insn == INSN_READ) { + data[0] = (new_data[1] >> (chan - base_bitfield_channel)) & 1; + } + + return 1; +} + +static inline unsigned long uvirt_to_kva(pgd_t * pgd, unsigned long adr) +{ + unsigned long ret = 0UL; + pmd_t *pmd; + pte_t *ptep, pte; + pud_t *pud; + + if (!pgd_none(*pgd)) { + pud = pud_offset(pgd, adr); + pmd = pmd_offset(pud, adr); + if (!pmd_none(*pmd)) { + ptep = pte_offset_kernel(pmd, adr); + pte = *ptep; + if (pte_present(pte)) { + ret = (unsigned long) + page_address(pte_page(pte)); + ret |= (adr & (PAGE_SIZE - 1)); + } + } + } + return ret; +} + +static inline unsigned long kvirt_to_kva(unsigned long adr) +{ + unsigned long va, kva; + + va = adr; + kva = uvirt_to_kva(pgd_offset_k(va), va); + + return kva; +} + +int comedi_buf_alloc(comedi_device * dev, comedi_subdevice * s, + unsigned long new_size) +{ + comedi_async *async = s->async; + + /* Round up new_size to multiple of PAGE_SIZE */ + new_size = (new_size + PAGE_SIZE - 1) & PAGE_MASK; + + /* if no change is required, do nothing */ + if (async->prealloc_buf && async->prealloc_bufsz == new_size) { + return 0; + } + // deallocate old buffer + if (async->prealloc_buf) { + vunmap(async->prealloc_buf); + async->prealloc_buf = NULL; + async->prealloc_bufsz = 0; + } + if (async->buf_page_list) { + unsigned i; + for (i = 0; i < async->n_buf_pages; ++i) { + if (async->buf_page_list[i].virt_addr) { + mem_map_unreserve(virt_to_page(async-> + buf_page_list[i].virt_addr)); + if (s->async_dma_dir != DMA_NONE) { + dma_free_coherent(dev->hw_dev, + PAGE_SIZE, + async->buf_page_list[i]. + virt_addr, + async->buf_page_list[i]. + dma_addr); + } else { + free_page((unsigned long)async-> + buf_page_list[i].virt_addr); + } + } + } + vfree(async->buf_page_list); + async->buf_page_list = NULL; + async->n_buf_pages = 0; + } + // allocate new buffer + if (new_size) { + unsigned i = 0; + unsigned n_pages = new_size >> PAGE_SHIFT; + struct page **pages = NULL; + + async->buf_page_list = + vmalloc(sizeof(struct comedi_buf_page) * n_pages); + if (async->buf_page_list) { + memset(async->buf_page_list, 0, + sizeof(struct comedi_buf_page) * n_pages); + pages = vmalloc(sizeof(struct page *) * n_pages); + } + if (pages) { + for (i = 0; i < n_pages; i++) { + if (s->async_dma_dir != DMA_NONE) { + async->buf_page_list[i].virt_addr = + dma_alloc_coherent(dev->hw_dev, + PAGE_SIZE, + &async->buf_page_list[i]. + dma_addr, + GFP_KERNEL | __GFP_COMP); + } else { + async->buf_page_list[i].virt_addr = + (void *) + get_zeroed_page(GFP_KERNEL); + } + if (async->buf_page_list[i].virt_addr == NULL) { + break; + } + mem_map_reserve(virt_to_page(async-> + buf_page_list[i].virt_addr)); + pages[i] = + virt_to_page(async->buf_page_list[i]. + virt_addr); + } + } + if (i == n_pages) { + async->prealloc_buf = + vmap(pages, n_pages, VM_MAP, + PAGE_KERNEL_NOCACHE); + } + if (pages) { + vfree(pages); + } + if (async->prealloc_buf == NULL) { + /* Some allocation failed above. */ + if (async->buf_page_list) { + for (i = 0; i < n_pages; i++) { + if (async->buf_page_list[i].virt_addr == + NULL) { + break; + } + mem_map_unreserve(virt_to_page(async-> + buf_page_list[i]. + virt_addr)); + if (s->async_dma_dir != DMA_NONE) { + dma_free_coherent(dev->hw_dev, + PAGE_SIZE, + async->buf_page_list[i]. + virt_addr, + async->buf_page_list[i]. + dma_addr); + } else { + free_page((unsigned long)async-> + buf_page_list[i]. + virt_addr); + } + } + vfree(async->buf_page_list); + async->buf_page_list = NULL; + } + return -ENOMEM; + } + async->n_buf_pages = n_pages; + } + async->prealloc_bufsz = new_size; + + return 0; +} + +/* munging is applied to data by core as it passes between user + * and kernel space */ +unsigned int comedi_buf_munge(comedi_async * async, unsigned int num_bytes) +{ + comedi_subdevice *s = async->subdevice; + unsigned int count = 0; + const unsigned num_sample_bytes = bytes_per_sample(s); + + if (s->munge == NULL || (async->cmd.flags & CMDF_RAWDATA)) { + async->munge_count += num_bytes; + if ((int)(async->munge_count - async->buf_write_count) > 0) + BUG(); + return num_bytes; + } + /* don't munge partial samples */ + num_bytes -= num_bytes % num_sample_bytes; + while (count < num_bytes) { + int block_size; + + block_size = num_bytes - count; + if (block_size < 0) { + rt_printk("%s: %s: bug! block_size is negative\n", + __FILE__, __func__); + break; + } + if ((int)(async->munge_ptr + block_size - + async->prealloc_bufsz) > 0) + block_size = async->prealloc_bufsz - async->munge_ptr; + + s->munge(s->device, s, async->prealloc_buf + async->munge_ptr, + block_size, async->munge_chan); + + smp_wmb(); //barrier insures data is munged in buffer before munge_count is incremented + + async->munge_chan += block_size / num_sample_bytes; + async->munge_chan %= async->cmd.chanlist_len; + async->munge_count += block_size; + async->munge_ptr += block_size; + async->munge_ptr %= async->prealloc_bufsz; + count += block_size; + } + if ((int)(async->munge_count - async->buf_write_count) > 0) + BUG(); + return count; +} + +unsigned int comedi_buf_write_n_available(comedi_async * async) +{ + unsigned int free_end; + unsigned int nbytes; + + if (async == NULL) + return 0; + + free_end = async->buf_read_count + async->prealloc_bufsz; + nbytes = free_end - async->buf_write_alloc_count; + nbytes -= nbytes % bytes_per_sample(async->subdevice); + /* barrier insures the read of buf_read_count in this + query occurs before any following writes to the buffer which + might be based on the return value from this query. + */ + smp_mb(); + return nbytes; +} + +/* allocates chunk for the writer from free buffer space */ +unsigned int comedi_buf_write_alloc(comedi_async * async, unsigned int nbytes) +{ + unsigned int free_end = async->buf_read_count + async->prealloc_bufsz; + + if ((int)(async->buf_write_alloc_count + nbytes - free_end) > 0) { + nbytes = free_end - async->buf_write_alloc_count; + } + async->buf_write_alloc_count += nbytes; + /* barrier insures the read of buf_read_count above occurs before + we write data to the write-alloc'ed buffer space */ + smp_mb(); + return nbytes; +} + +/* allocates nothing unless it can completely fulfill the request */ +unsigned int comedi_buf_write_alloc_strict(comedi_async * async, + unsigned int nbytes) +{ + unsigned int free_end = async->buf_read_count + async->prealloc_bufsz; + + if ((int)(async->buf_write_alloc_count + nbytes - free_end) > 0) { + nbytes = 0; + } + async->buf_write_alloc_count += nbytes; + /* barrier insures the read of buf_read_count above occurs before + we write data to the write-alloc'ed buffer space */ + smp_mb(); + return nbytes; +} + +/* transfers a chunk from writer to filled buffer space */ +unsigned comedi_buf_write_free(comedi_async * async, unsigned int nbytes) +{ + if ((int)(async->buf_write_count + nbytes - + async->buf_write_alloc_count) > 0) { + rt_printk + ("comedi: attempted to write-free more bytes than have been write-allocated.\n"); + nbytes = async->buf_write_alloc_count - async->buf_write_count; + } + async->buf_write_count += nbytes; + async->buf_write_ptr += nbytes; + comedi_buf_munge(async, async->buf_write_count - async->munge_count); + if (async->buf_write_ptr >= async->prealloc_bufsz) { + async->buf_write_ptr %= async->prealloc_bufsz; + } + return nbytes; +} + +/* allocates a chunk for the reader from filled (and munged) buffer space */ +unsigned comedi_buf_read_alloc(comedi_async * async, unsigned nbytes) +{ + if ((int)(async->buf_read_alloc_count + nbytes - async->munge_count) > + 0) { + nbytes = async->munge_count - async->buf_read_alloc_count; + } + async->buf_read_alloc_count += nbytes; + /* barrier insures read of munge_count occurs before we actually read + data out of buffer */ + smp_rmb(); + return nbytes; +} + +/* transfers control of a chunk from reader to free buffer space */ +unsigned comedi_buf_read_free(comedi_async * async, unsigned int nbytes) +{ + // barrier insures data has been read out of buffer before read count is incremented + smp_mb(); + if ((int)(async->buf_read_count + nbytes - + async->buf_read_alloc_count) > 0) { + rt_printk + ("comedi: attempted to read-free more bytes than have been read-allocated.\n"); + nbytes = async->buf_read_alloc_count - async->buf_read_count; + } + async->buf_read_count += nbytes; + async->buf_read_ptr += nbytes; + async->buf_read_ptr %= async->prealloc_bufsz; + return nbytes; +} + +void comedi_buf_memcpy_to(comedi_async * async, unsigned int offset, + const void *data, unsigned int num_bytes) +{ + unsigned int write_ptr = async->buf_write_ptr + offset; + + if (write_ptr >= async->prealloc_bufsz) + write_ptr %= async->prealloc_bufsz; + + while (num_bytes) { + unsigned int block_size; + + if (write_ptr + num_bytes > async->prealloc_bufsz) + block_size = async->prealloc_bufsz - write_ptr; + else + block_size = num_bytes; + + memcpy(async->prealloc_buf + write_ptr, data, block_size); + + data += block_size; + num_bytes -= block_size; + + write_ptr = 0; + } +} + +void comedi_buf_memcpy_from(comedi_async * async, unsigned int offset, + void *dest, unsigned int nbytes) +{ + void *src; + unsigned int read_ptr = async->buf_read_ptr + offset; + + if (read_ptr >= async->prealloc_bufsz) + read_ptr %= async->prealloc_bufsz; + + while (nbytes) { + unsigned int block_size; + + src = async->prealloc_buf + read_ptr; + + if (nbytes >= async->prealloc_bufsz - read_ptr) + block_size = async->prealloc_bufsz - read_ptr; + else + block_size = nbytes; + + memcpy(dest, src, block_size); + nbytes -= block_size; + dest += block_size; + read_ptr = 0; + } +} + +unsigned int comedi_buf_read_n_available(comedi_async * async) +{ + unsigned num_bytes; + + if (async == NULL) + return 0; + num_bytes = async->munge_count - async->buf_read_count; + /* barrier insures the read of munge_count in this + query occurs before any following reads of the buffer which + might be based on the return value from this query. + */ + smp_rmb(); + return num_bytes; +} + +int comedi_buf_get(comedi_async * async, sampl_t * x) +{ + unsigned int n = comedi_buf_read_n_available(async); + + if (n < sizeof(sampl_t)) + return 0; + comedi_buf_read_alloc(async, sizeof(sampl_t)); + *x = *(sampl_t *) (async->prealloc_buf + async->buf_read_ptr); + comedi_buf_read_free(async, sizeof(sampl_t)); + return 1; +} + +int comedi_buf_put(comedi_async * async, sampl_t x) +{ + unsigned int n = comedi_buf_write_alloc_strict(async, sizeof(sampl_t)); + + if (n < sizeof(sampl_t)) { + async->events |= COMEDI_CB_ERROR; + return 0; + } + *(sampl_t *) (async->prealloc_buf + async->buf_write_ptr) = x; + comedi_buf_write_free(async, sizeof(sampl_t)); + return 1; +} + +void comedi_reset_async_buf(comedi_async * async) +{ + async->buf_write_alloc_count = 0; + async->buf_write_count = 0; + async->buf_read_alloc_count = 0; + async->buf_read_count = 0; + + async->buf_write_ptr = 0; + async->buf_read_ptr = 0; + + async->cur_chan = 0; + async->scan_progress = 0; + async->munge_chan = 0; + async->munge_count = 0; + async->munge_ptr = 0; + + async->events = 0; +} + +int comedi_auto_config(struct device *hardware_device, const char *board_name, const int *options, unsigned num_options) +{ + comedi_devconfig it; + int minor; + struct comedi_device_file_info *dev_file_info; + int retval; + + minor = comedi_alloc_board_minor(hardware_device); + if(minor < 0) return minor; + dev_set_drvdata(hardware_device, (void*)(unsigned long)minor); + + dev_file_info = comedi_get_device_file_info(minor); + + memset(&it, 0, sizeof(it)); + strncpy(it.board_name, board_name, COMEDI_NAMELEN); + it.board_name[COMEDI_NAMELEN - 1] = '\0'; + BUG_ON(num_options > COMEDI_NDEVCONFOPTS); + memcpy(it.options, options, num_options * sizeof(int)); + + mutex_lock(&dev_file_info->device->mutex); + retval = comedi_device_attach(dev_file_info->device, &it); + mutex_unlock(&dev_file_info->device->mutex); + if(retval < 0) + { + comedi_free_board_minor(minor); + } + return retval; +} + +void comedi_auto_unconfig(struct device *hardware_device) +{ + unsigned long minor = (unsigned long)dev_get_drvdata(hardware_device); + + BUG_ON(minor >= COMEDI_NUM_BOARD_MINORS); + + comedi_free_board_minor(minor); +} + +int comedi_pci_auto_config(struct pci_dev *pcidev, const char *board_name) +{ + int options[2]; + + // pci bus + options[0] = pcidev->bus->number; + // pci slot + options[1] = PCI_SLOT(pcidev->devfn); + + return comedi_auto_config(&pcidev->dev, board_name, options, sizeof(options) / sizeof(options[0])); +} + +void comedi_pci_auto_unconfig(struct pci_dev *pcidev) +{ + comedi_auto_unconfig(&pcidev->dev); +} |