ksrc/drivers/analogy/driver_facilities.c File Reference
Detailed Description
Analogy for Linux, driver facilities.
- Note:
- Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
Copyright (C) 2008 Alexis Berlemont <alexis.berlemont@free.fr>
Xenomai 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 Xenomai; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Include dependency graph for driver_facilities.c:
Functions | |
| int | a4l_register_drv (a4l_drv_t *drv) |
| Register an Analogy driver. | |
| int | a4l_unregister_drv (a4l_drv_t *drv) |
| Unregister an Analogy driver. | |
| a4l_subd_t * | a4l_alloc_subd (int sizeof_priv, void(*setup)(a4l_subd_t *)) |
| Allocate a subdevice descriptor. | |
| int | a4l_add_subd (a4l_dev_t *dev, a4l_subd_t *subd) |
| Add a subdevice to the driver descriptor. | |
| a4l_subd_t * | a4l_get_subd (a4l_dev_t *dev, int idx) |
| Get a pointer to the subdevice descriptor referenced by its registration index. | |
| int | a4l_buf_prepare_absput (a4l_subd_t *subd, unsigned long count) |
| Update the absolute count of data sent from the device to the buffer since the start of the acquisition and after the next DMA shot. | |
| int | a4l_buf_commit_absput (a4l_subd_t *subd, unsigned long count) |
| Set the absolute count of data which was sent from the device to the buffer since the start of the acquisition and until the last DMA shot. | |
| int | a4l_buf_prepare_put (a4l_subd_t *subd, unsigned long count) |
| Set the count of data which is to be sent to the buffer at the next DMA shot. | |
| int | a4l_buf_commit_put (a4l_subd_t *subd, unsigned long count) |
| Set the count of data sent to the buffer during the last completed DMA shots. | |
| int | a4l_buf_put (a4l_subd_t *subd, void *bufdata, unsigned long count) |
| Copy some data from the device driver to the buffer. | |
| int | a4l_buf_prepare_absget (a4l_subd_t *subd, unsigned long count) |
| Update the absolute count of data sent from the buffer to the device since the start of the acquisition and after the next DMA shot. | |
| int | a4l_buf_commit_absget (a4l_subd_t *subd, unsigned long count) |
| Set the absolute count of data which was sent from the buffer to the device since the start of the acquisition and until the last DMA shot. | |
| int | a4l_buf_prepare_get (a4l_subd_t *subd, unsigned long count) |
| Set the count of data which is to be sent from the buffer to the device at the next DMA shot. | |
| int | a4l_buf_commit_get (a4l_subd_t *subd, unsigned long count) |
| Set the count of data sent from the buffer to the device during the last completed DMA shots. | |
| int | a4l_buf_get (a4l_subd_t *subd, void *bufdata, unsigned long count) |
| Copy some data from the buffer to the device driver. | |
| int | a4l_buf_evt (a4l_subd_t *subd, unsigned long evts) |
| Signal some event(s) to a user-space program involved in some read / write operation. | |
| unsigned long | a4l_buf_count (a4l_subd_t *subd) |
| Get the data amount available in the Analogy buffer. | |
| a4l_cmd_t * | a4l_get_cmd (a4l_subd_t *subd) |
| Get the current Analogy command descriptor. | |
| int | a4l_get_chan (a4l_subd_t *subd) |
| Get the channel index according to its type. | |
| unsigned int | a4l_get_irq (a4l_dev_t *dev) |
| Get the interrupt number in use for a specific device. | |
| int | a4l_request_irq (a4l_dev_t *dev, unsigned int irq, a4l_irq_hdlr_t handler, unsigned long flags, void *cookie) |
| Register an interrupt handler for a specific device. | |
| int | a4l_free_irq (a4l_dev_t *dev, unsigned int irq) |
| Release an interrupt handler for a specific device. | |
| int | a4l_task_init (a4l_task_t *task, const char *name, a4l_task_proc_t proc, void *arg, int priority) |
| Intialise and start an Analogy task. | |
| void | a4l_task_destroy (a4l_task_t *task) |
| Destroy an Analogy task. | |
| int | a4l_task_sleep (unsigned long long nsdelay) |
| Make the current Analogy task passively wait a defined delay. | |
| unsigned long long | a4l_get_time (void) |
| Get the absolute time in nanoseconds. | |
