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<title>Xenomai API: ksrc/drivers/analogy/driver_facilities.c File Reference</title>
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<h1>ksrc/drivers/analogy/driver_facilities.c File Reference</h1><hr><a name="_details"></a><h2>Detailed Description</h2>
Analogy for Linux, driver facilities.
<p>
<dl class="note" compact><dt><b>Note:</b></dt><dd>Copyright (C) 1997-2000 David A. Schleef <<a href="mailto:ds@schleef.org">ds@schleef.org</a>> <p>
Copyright (C) 2008 Alexis Berlemont <<a href="mailto:alexis.berlemont@free.fr">alexis.berlemont@free.fr</a>></dd></dl>
Xenomai 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.<p>
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.<p>
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.
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Include dependency graph for driver_facilities.c:</div>
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<p><center><img src="driver__facilities_8c__incl.png" border="0" usemap="#ksrc/drivers/analogy/driver_facilities.c_map" alt=""></center>
<map name="ksrc/drivers/analogy/driver_facilities.c_map">
<area shape="rect" href="context_8h.html" title="Analogy for Linux, context structure / macros declarations." alt="" coords="145,161,281,188"><area shape="rect" href="device_8h.html" title="Analogy for Linux, device related features." alt="" coords="489,161,617,188"><area shape="rect" href="analogy__driver_8h.html" title="Analogy for Linux, driver facilities." alt="" coords="296,84,475,111"><area shape="rect" href="os__facilities_8h.html" title="Analogy for Linux, Operation system facilities." alt="" coords="305,161,465,188"></map>
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<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__driver.html#g82c744a0f4f897d1dbe9401d6f0d86ec">a4l_register_drv</a> (<a class="el" href="structa4l__driver.html">a4l_drv_t</a> *drv)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Register an Analogy driver. <a href="group__driver.html#g82c744a0f4f897d1dbe9401d6f0d86ec"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__driver.html#g47c4f76abb8d70ecb9629cff72c45266">a4l_unregister_drv</a> (<a class="el" href="structa4l__driver.html">a4l_drv_t</a> *drv)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Unregister an Analogy driver. <a href="group__driver.html#g47c4f76abb8d70ecb9629cff72c45266"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__subdevice.html#g32595b3806dd3e73038a2022c0b1e204">a4l_alloc_subd</a> (int sizeof_priv, void(*setup)(<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *))</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Allocate a subdevice descriptor. <a href="group__subdevice.html#g32595b3806dd3e73038a2022c0b1e204"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__subdevice.html#g229e7725db234534da6e6973c63f1cef">a4l_add_subd</a> (a4l_dev_t *dev, <a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add a subdevice to the driver descriptor. <a href="group__subdevice.html#g229e7725db234534da6e6973c63f1cef"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__subdevice.html#ga8b2dfadeac340e288725e1f2ce9b63b">a4l_get_subd</a> (a4l_dev_t *dev, int idx)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get a pointer to the subdevice descriptor referenced by its registration index. <a href="group__subdevice.html#ga8b2dfadeac340e288725e1f2ce9b63b"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__buffer.html#g8ffbc9832255a701624fe874d319e5f4">a4l_buf_prepare_absput</a> (<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd, unsigned long count)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">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. <a href="group__analogy__buffer.html#g8ffbc9832255a701624fe874d319e5f4"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__buffer.html#g8d053d9fc6e19eb47f9c08abf485cea9">a4l_buf_commit_absput</a> (<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd, unsigned long count)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">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. <a href="group__analogy__buffer.html#g8d053d9fc6e19eb47f9c08abf485cea9"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__buffer.html#g582e96ac8358717a19995e0c8c41dffc">a4l_buf_prepare_put</a> (<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd, unsigned long count)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the count of data which is to be sent to the buffer at the next DMA shot. <a href="group__analogy__buffer.html#g582e96ac8358717a19995e0c8c41dffc"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__buffer.html#gb03dcc685bcb3ad9111c9aa3dbe3baf5">a4l_buf_commit_put</a> (<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd, unsigned long count)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the count of data sent to the buffer during the last completed DMA shots. <a href="group__analogy__buffer.html#gb03dcc685bcb3ad9111c9aa3dbe3baf5"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__buffer.html#gec920d203e34f2020eb51ddad3461d1c">a4l_buf_put</a> (<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd, void *bufdata, unsigned long count)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Copy some data from the device driver to the buffer. <a href="group__analogy__buffer.html#gec920d203e34f2020eb51ddad3461d1c"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__buffer.html#g7fecd99d23d53c69381aacee4d9222d8">a4l_buf_prepare_absget</a> (<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd, unsigned long count)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">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. <a href="group__analogy__buffer.html#g7fecd99d23d53c69381aacee4d9222d8"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__buffer.html#gdadad4789e1da9236fed49a33b1b2284">a4l_buf_commit_absget</a> (<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd, unsigned long count)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">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. <a href="group__analogy__buffer.html#gdadad4789e1da9236fed49a33b1b2284"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__buffer.html#gf9fe0b2fe2279e4f753ddec776d10c5f">a4l_buf_prepare_get</a> (<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd, unsigned long count)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the count of data which is to be sent from the buffer to the device at the next DMA shot. <a href="group__analogy__buffer.html#gf9fe0b2fe2279e4f753ddec776d10c5f"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__buffer.html#gbd70bc9f8bb4615f60c0107d51ca1f29">a4l_buf_commit_get</a> (<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd, unsigned long count)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the count of data sent from the buffer to the device during the last completed DMA shots. <a href="group__analogy__buffer.html#gbd70bc9f8bb4615f60c0107d51ca1f29"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__buffer.html#g6af2dcaaecfd2cd9f0deb6e9167d3cff">a4l_buf_get</a> (<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd, void *bufdata, unsigned long count)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Copy some data from the buffer to the device driver. <a href="group__analogy__buffer.html#g6af2dcaaecfd2cd9f0deb6e9167d3cff"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__buffer.html#gc275c834264a50b9443304d33908f657">a4l_buf_evt</a> (<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd, unsigned long evts)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Signal some event(s) to a user-space program involved in some read / write operation. <a href="group__analogy__buffer.html#gc275c834264a50b9443304d33908f657"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">unsigned long </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__buffer.html#gd9e80150586b4a869562d3d098f49d36">a4l_buf_count</a> (<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the data amount available in the Analogy buffer. <a href="group__analogy__buffer.html#gd9e80150586b4a869562d3d098f49d36"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="structa4l__cmd__desc.html">a4l_cmd_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__buffer.html#g2386d5a9d84393b5db9beb22ae7674e9">a4l_get_cmd</a> (<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the current Analogy command descriptor. <a href="group__analogy__buffer.html#g2386d5a9d84393b5db9beb22ae7674e9"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__buffer.html#g6e33ba6f8a06e3dbbfe3896b0258857f">a4l_get_chan</a> (<a class="el" href="structa4l__subdevice.html">a4l_subd_t</a> *subd)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the channel index according to its type. <a href="group__analogy__buffer.html#g6e33ba6f8a06e3dbbfe3896b0258857f"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__interrupt.html#g482cc3464879c72b2359bd4b642f0a96">a4l_get_irq</a> (a4l_dev_t *dev)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the interrupt number in use for a specific device. <a href="group__analogy__interrupt.html#g482cc3464879c72b2359bd4b642f0a96"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__interrupt.html#g2a3eb695fa1f5f97c1d6829039979d54">a4l_request_irq</a> (a4l_dev_t *dev, unsigned int irq, a4l_irq_hdlr_t handler, unsigned long flags, void *cookie)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Register an interrupt handler for a specific device. <a href="group__analogy__interrupt.html#g2a3eb695fa1f5f97c1d6829039979d54"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analogy__interrupt.html#g6377e1975bd391b58fbe3ddb2d2c2b8e">a4l_free_irq</a> (a4l_dev_t *dev, unsigned int irq)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Release an interrupt handler for a specific device. <a href="group__analogy__interrupt.html#g6377e1975bd391b58fbe3ddb2d2c2b8e"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#g6281acb78815ca55eba88d556ffa6eea">a4l_task_init</a> (a4l_task_t *task, const char *name, a4l_task_proc_t proc, void *arg, int priority)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Intialise and start an Analogy task. <a href="group__misc.html#g6281acb78815ca55eba88d556ffa6eea"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#g5354f611877d7a790c1d05d8b356749e">a4l_task_destroy</a> (a4l_task_t *task)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destroy an Analogy task. <a href="group__misc.html#g5354f611877d7a790c1d05d8b356749e"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#g334d65300e473c5bbea91157e74b6b5c">a4l_task_sleep</a> (unsigned long long nsdelay)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Make the current Analogy task passively wait a defined delay. <a href="group__misc.html#g334d65300e473c5bbea91157e74b6b5c"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">unsigned long long </td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#g52b7d3c6fd2df045643d887c003753fb">a4l_get_time</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the absolute time in nanoseconds. <a href="group__misc.html#g52b7d3c6fd2df045643d887c003753fb"></a><br></td></tr>
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