/**
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* @file
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* Analogy for Linux, UAPI bits
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* @note Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
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* @note Copyright (C) 2008 Alexis Berlemont <alexis.berlemont@free.fr>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*/
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#ifndef _RTDM_UAPI_ANALOGY_H
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#define _RTDM_UAPI_ANALOGY_H
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/* --- Misc precompilation constant --- */
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#define A4L_NAMELEN 20
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#define A4L_INFINITE 0
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#define A4L_NONBLOCK (-1)
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/* --- Common Analogy types --- */
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typedef unsigned short sampl_t;
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typedef unsigned long lsampl_t;
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/* MMAP ioctl argument structure */
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struct a4l_mmap_arg {
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unsigned int idx_subd;
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unsigned long size;
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void *ptr;
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};
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typedef struct a4l_mmap_arg a4l_mmap_t;
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/* Constants related with buffer size
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(might be used with BUFCFG ioctl) */
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#define A4L_BUF_MAXSIZE 0x1000000
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#define A4L_BUF_DEFSIZE 0x10000
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#define A4L_BUF_DEFMAGIC 0xffaaff55
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/* BUFCFG ioctl argument structure */
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struct a4l_buffer_config {
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/* NOTE: with the last buffer implementation, the field
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idx_subd became useless; the buffer are now
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per-context. So, the buffer size configuration is specific
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to an opened device. There is a little exception: we can
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define a default buffer size for a device.
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So far, a hack is used to implement the configuration of
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the default buffer size */
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unsigned int idx_subd;
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unsigned long buf_size;
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};
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typedef struct a4l_buffer_config a4l_bufcfg_t;
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/* BUFINFO ioctl argument structure */
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struct a4l_buffer_info {
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unsigned int idx_subd;
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unsigned long buf_size;
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unsigned long rw_count;
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};
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typedef struct a4l_buffer_info a4l_bufinfo_t;
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/* BUFCFG2 / BUFINFO2 ioctl argument structure */
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struct a4l_buffer_config2 {
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unsigned long wake_count;
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unsigned long reserved[3];
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};
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typedef struct a4l_buffer_config2 a4l_bufcfg2_t;
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/* POLL ioctl argument structure */
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struct a4l_poll {
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unsigned int idx_subd;
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unsigned long arg;
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};
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typedef struct a4l_poll a4l_poll_t;
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/* DEVCFG ioctl argument structure */
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struct a4l_link_desc {
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unsigned char bname_size;
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char *bname;
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unsigned int opts_size;
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void *opts;
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};
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typedef struct a4l_link_desc a4l_lnkdesc_t;
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/* DEVINFO ioctl argument structure */
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struct a4l_dev_info {
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char board_name[A4L_NAMELEN];
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char driver_name[A4L_NAMELEN];
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int nb_subd;
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int idx_read_subd;
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int idx_write_subd;
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};
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typedef struct a4l_dev_info a4l_dvinfo_t;
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#define CIO 'd'
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#define A4L_DEVCFG _IOW(CIO,0,a4l_lnkdesc_t)
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#define A4L_DEVINFO _IOR(CIO,1,a4l_dvinfo_t)
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#define A4L_SUBDINFO _IOR(CIO,2,a4l_sbinfo_t)
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#define A4L_CHANINFO _IOR(CIO,3,a4l_chinfo_arg_t)
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#define A4L_RNGINFO _IOR(CIO,4,a4l_rnginfo_arg_t)
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#define A4L_CMD _IOWR(CIO,5,a4l_cmd_t)
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#define A4L_CANCEL _IOR(CIO,6,unsigned int)
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#define A4L_INSNLIST _IOR(CIO,7,unsigned int)
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#define A4L_INSN _IOR(CIO,8,unsigned int)
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#define A4L_BUFCFG _IOR(CIO,9,a4l_bufcfg_t)
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#define A4L_BUFINFO _IOWR(CIO,10,a4l_bufinfo_t)
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#define A4L_POLL _IOR(CIO,11,unsigned int)
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#define A4L_MMAP _IOWR(CIO,12,unsigned int)
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#define A4L_NBCHANINFO _IOR(CIO,13,a4l_chinfo_arg_t)
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#define A4L_NBRNGINFO _IOR(CIO,14,a4l_rnginfo_arg_t)
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/* These IOCTLs are bound to be merged with A4L_BUFCFG and A4L_BUFINFO
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at the next major release */
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#define A4L_BUFCFG2 _IOR(CIO,15,a4l_bufcfg_t)
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#define A4L_BUFINFO2 _IOWR(CIO,16,a4l_bufcfg_t)
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/*!
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* @addtogroup analogy_lib_async1
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* @{
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*/
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/*!
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* @anchor ANALOGY_CMD_xxx @name ANALOGY_CMD_xxx
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* @brief Common command flags definitions
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* @{
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*/
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/**
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* Do not execute the command, just check it
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*/
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#define A4L_CMD_SIMUL 0x1
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/**
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* Perform data recovery / transmission in bulk mode
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*/
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#define A4L_CMD_BULK 0x2
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/**
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* Perform a command which will write data to the device
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*/
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#define A4L_CMD_WRITE 0x4
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/*! @} ANALOGY_CMD_xxx */
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/*!
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* @anchor TRIG_xxx @name TRIG_xxx
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* @brief Command triggers flags definitions
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* @{
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*/
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/**
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* Never trigger
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*/
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#define TRIG_NONE 0x00000001
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/**
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* Trigger now + N ns
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*/
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#define TRIG_NOW 0x00000002
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/**
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* Trigger on next lower level trig
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*/
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#define TRIG_FOLLOW 0x00000004
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/**
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* Trigger at time N ns
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*/
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#define TRIG_TIME 0x00000008
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/**
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* Trigger at rate N ns
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*/
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#define TRIG_TIMER 0x00000010
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/**
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* Trigger when count reaches N
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*/
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#define TRIG_COUNT 0x00000020
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/**
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* Trigger on external signal N
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*/
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#define TRIG_EXT 0x00000040
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/**
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* Trigger on analogy-internal signal N
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*/
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#define TRIG_INT 0x00000080
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/**
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* Driver defined trigger
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*/
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#define TRIG_OTHER 0x00000100
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/**
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* Wake up on end-of-scan
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*/
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#define TRIG_WAKE_EOS 0x0020
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/**
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* Trigger not implemented yet
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*/
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#define TRIG_ROUND_MASK 0x00030000
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/**
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* Trigger not implemented yet
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*/
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#define TRIG_ROUND_NEAREST 0x00000000
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/**
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* Trigger not implemented yet
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*/
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#define TRIG_ROUND_DOWN 0x00010000
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/**
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* Trigger not implemented yet
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*/
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#define TRIG_ROUND_UP 0x00020000
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/**
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* Trigger not implemented yet
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*/
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#define TRIG_ROUND_UP_NEXT 0x00030000
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/*! @} TRIG_xxx */
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/*!
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* @anchor CHAN_RNG_AREF @name Channel macros
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* @brief Specific precompilation macros and constants useful for the
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* channels descriptors tab located in the command structure
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* @{
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*/
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/**
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* Channel indication macro
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*/
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#define CHAN(a) ((a) & 0xffff)
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/**
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* Range definition macro
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*/
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#define RNG(a) (((a) & 0xff) << 16)
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/**
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* Reference definition macro
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*/
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#define AREF(a) (((a) & 0x03) << 24)
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/**
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* Flags definition macro
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*/
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#define FLAGS(a) ((a) & CR_FLAGS_MASK)
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/**
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* Channel + range + reference definition macro
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*/
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#define PACK(a, b, c) (a | RNG(b) | AREF(c))
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/**
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* Channel + range + reference + flags definition macro
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*/
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#define PACK_FLAGS(a, b, c, d) (PACK(a, b, c) | FLAGS(d))
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/**
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* Analog reference is analog ground
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*/
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#define AREF_GROUND 0x00
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/**
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* Analog reference is analog common
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*/
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#define AREF_COMMON 0x01
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/**
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* Analog reference is differential
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*/
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#define AREF_DIFF 0x02
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/**
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* Analog reference is undefined
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*/
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#define AREF_OTHER 0x03
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/*! @} CHAN_RNG_AREF */
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#if !defined(DOXYGEN_CPP)
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#define CR_FLAGS_MASK 0xfc000000
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#define CR_ALT_FILTER (1<<26)
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#define CR_DITHER CR_ALT_FILTER
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#define CR_DEGLITCH CR_ALT_FILTER
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#define CR_ALT_SOURCE (1<<27)
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#define CR_EDGE (1<<30)
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#define CR_INVERT (1<<31)
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#endif /* !DOXYGEN_CPP */
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/*!
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* @brief Structure describing the asynchronous instruction
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* @see a4l_snd_command()
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*/
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struct a4l_cmd_desc {
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unsigned char idx_subd;
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/**< Subdevice to which the command will be applied. */
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unsigned long flags;
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/**< Command flags */
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/* Command trigger characteristics */
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unsigned int start_src;
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/**< Start trigger type */
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unsigned int start_arg;
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/**< Start trigger argument */
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unsigned int scan_begin_src;
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/**< Scan begin trigger type */
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unsigned int scan_begin_arg;
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/**< Scan begin trigger argument */
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unsigned int convert_src;
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/**< Convert trigger type */
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unsigned int convert_arg;
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/**< Convert trigger argument */
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unsigned int scan_end_src;
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/**< Scan end trigger type */
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unsigned int scan_end_arg;
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/**< Scan end trigger argument */
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unsigned int stop_src;
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/**< Stop trigger type */
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unsigned int stop_arg;
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/**< Stop trigger argument */
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unsigned char nb_chan;
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/**< Count of channels related with the command */
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unsigned int *chan_descs;
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/**< Tab containing channels descriptors */
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/* Driver specific fields */
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unsigned int valid_simul_stages;
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/** < cmd simulation valid stages (driver dependent) */
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unsigned int data_len;
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/**< Driver specific buffer size */
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sampl_t *data;
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/**< Driver specific buffer pointer */
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};
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typedef struct a4l_cmd_desc a4l_cmd_t;
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/*! @} analogy_lib_async1 */
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/* --- Range section --- */
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/** Constant for internal use only (must not be used by driver
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developer). */
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#define A4L_RNG_FACTOR 1000000
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/**
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* Volt unit range flag
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*/
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#define A4L_RNG_VOLT_UNIT 0x0
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/**
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* MilliAmpere unit range flag
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*/
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#define A4L_RNG_MAMP_UNIT 0x1
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/**
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* No unit range flag
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*/
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#define A4L_RNG_NO_UNIT 0x2
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/**
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* External unit range flag
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*/
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#define A4L_RNG_EXT_UNIT 0x4
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/**
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* Macro to retrieve the range unit from the range flags
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*/
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#define A4L_RNG_UNIT(x) (x & (A4L_RNG_VOLT_UNIT | \
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A4L_RNG_MAMP_UNIT | \
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A4L_RNG_NO_UNIT | \
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A4L_RNG_EXT_UNIT))
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/* --- Subdevice flags desc stuff --- */
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/* TODO: replace ANALOGY_SUBD_AI with ANALOGY_SUBD_ANALOG
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and ANALOGY_SUBD_INPUT */
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/* Subdevice types masks */
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#define A4L_SUBD_MASK_READ 0x80000000
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#define A4L_SUBD_MASK_WRITE 0x40000000
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#define A4L_SUBD_MASK_SPECIAL 0x20000000
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/*!
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* @addtogroup analogy_subdevice
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* @{
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*/
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/*!
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* @anchor ANALOGY_SUBD_xxx @name Subdevices types
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* @brief Flags to define the subdevice type
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* @{
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*/
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/**
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* Unused subdevice
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*/
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#define A4L_SUBD_UNUSED (A4L_SUBD_MASK_SPECIAL|0x1)
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/**
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* Analog input subdevice
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*/
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#define A4L_SUBD_AI (A4L_SUBD_MASK_READ|0x2)
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/**
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* Analog output subdevice
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*/
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#define A4L_SUBD_AO (A4L_SUBD_MASK_WRITE|0x4)
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/**
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* Digital input subdevice
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*/
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#define A4L_SUBD_DI (A4L_SUBD_MASK_READ|0x8)
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/**
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* Digital output subdevice
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*/
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#define A4L_SUBD_DO (A4L_SUBD_MASK_WRITE|0x10)
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/**
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* Digital input/output subdevice
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*/
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#define A4L_SUBD_DIO (A4L_SUBD_MASK_SPECIAL|0x20)
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/**
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* Counter subdevice
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*/
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#define A4L_SUBD_COUNTER (A4L_SUBD_MASK_SPECIAL|0x40)
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/**
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* Timer subdevice
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*/
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#define A4L_SUBD_TIMER (A4L_SUBD_MASK_SPECIAL|0x80)
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/**
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* Memory, EEPROM, DPRAM
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*/
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#define A4L_SUBD_MEMORY (A4L_SUBD_MASK_SPECIAL|0x100)
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/**
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* Calibration subdevice DACs
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*/
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#define A4L_SUBD_CALIB (A4L_SUBD_MASK_SPECIAL|0x200)
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/**
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* Processor, DSP
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*/
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#define A4L_SUBD_PROC (A4L_SUBD_MASK_SPECIAL|0x400)
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/**
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* Serial IO subdevice
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*/
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#define A4L_SUBD_SERIAL (A4L_SUBD_MASK_SPECIAL|0x800)
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/**
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* Mask which gathers all the types
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*/
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#define A4L_SUBD_TYPES (A4L_SUBD_UNUSED | \
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A4L_SUBD_AI | \
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A4L_SUBD_AO | \
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A4L_SUBD_DI | \
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A4L_SUBD_DO | \
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A4L_SUBD_DIO | \
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A4L_SUBD_COUNTER | \
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A4L_SUBD_TIMER | \
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A4L_SUBD_MEMORY | \
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A4L_SUBD_CALIB | \
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A4L_SUBD_PROC | \
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A4L_SUBD_SERIAL)
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/*! @} ANALOGY_SUBD_xxx */
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/*!
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* @anchor ANALOGY_SUBD_FT_xxx @name Subdevice features
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* @brief Flags to define the subdevice's capabilities
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* @{
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*/
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/* Subdevice capabilities */
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/**
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* The subdevice can handle command (i.e it can perform asynchronous
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* acquisition)
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*/
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#define A4L_SUBD_CMD 0x1000
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/**
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* The subdevice support mmap operations (technically, any driver can
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* do it; however, the developer might want that his driver must be
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* accessed through read / write
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*/
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#define A4L_SUBD_MMAP 0x8000
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/*! @} ANALOGY_SUBD_FT_xxx */
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/*!
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* @anchor ANALOGY_SUBD_ST_xxx @name Subdevice status
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* @brief Flags to define the subdevice's status
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* @{
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*/
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/* Subdevice status flag(s) */
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/**
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* The subdevice is busy, a synchronous or an asynchronous acquisition
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* is occuring
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*/
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#define A4L_SUBD_BUSY_NR 0
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#define A4L_SUBD_BUSY (1 << A4L_SUBD_BUSY_NR)
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/**
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* The subdevice is about to be cleaned in the middle of the detach
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* procedure
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*/
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#define A4L_SUBD_CLEAN_NR 1
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#define A4L_SUBD_CLEAN (1 << A4L_SUBD_CLEAN_NR)
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/*! @} ANALOGY_SUBD_ST_xxx */
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/* --- Subdevice related IOCTL arguments structures --- */
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/* SUDBINFO IOCTL argument */
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struct a4l_subd_info {
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unsigned long flags;
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unsigned long status;
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unsigned char nb_chan;
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};
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typedef struct a4l_subd_info a4l_sbinfo_t;
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/* CHANINFO / NBCHANINFO IOCTL arguments */
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struct a4l_chan_info {
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unsigned long chan_flags;
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unsigned char nb_rng;
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unsigned char nb_bits;
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};
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typedef struct a4l_chan_info a4l_chinfo_t;
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struct a4l_chinfo_arg {
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unsigned int idx_subd;
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void *info;
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};
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typedef struct a4l_chinfo_arg a4l_chinfo_arg_t;
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/* RNGINFO / NBRNGINFO IOCTL arguments */
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struct a4l_rng_info {
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long min;
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long max;
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unsigned long flags;
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};
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typedef struct a4l_rng_info a4l_rnginfo_t;
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struct a4l_rng_info_arg {
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unsigned int idx_subd;
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unsigned int idx_chan;
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void *info;
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};
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typedef struct a4l_rng_info_arg a4l_rnginfo_arg_t;
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/*! @} */
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#define A4L_INSN_MASK_READ 0x8000000
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#define A4L_INSN_MASK_WRITE 0x4000000
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#define A4L_INSN_MASK_SPECIAL 0x2000000
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/*!
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* @addtogroup analogy_lib_sync1
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* @{
|
*/
|
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/*!
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* @anchor ANALOGY_INSN_xxx @name Instruction type
|
* @brief Flags to define the type of instruction
|
* @{
|
*/
|
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/**
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* Read instruction
|
*/
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#define A4L_INSN_READ (0 | A4L_INSN_MASK_READ)
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/**
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* Write instruction
|
*/
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#define A4L_INSN_WRITE (1 | A4L_INSN_MASK_WRITE)
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/**
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* "Bits" instruction
|
*/
|
#define A4L_INSN_BITS (2 | A4L_INSN_MASK_READ | \
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A4L_INSN_MASK_WRITE)
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/**
|
* Configuration instruction
|
*/
|
#define A4L_INSN_CONFIG (3 | A4L_INSN_MASK_READ | \
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A4L_INSN_MASK_WRITE)
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/**
|
* Get time instruction
|
*/
|
#define A4L_INSN_GTOD (4 | A4L_INSN_MASK_READ | \
|
A4L_INSN_MASK_SPECIAL)
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/**
|
* Wait instruction
|
*/
|
#define A4L_INSN_WAIT (5 | A4L_INSN_MASK_WRITE | \
|
A4L_INSN_MASK_SPECIAL)
|
/**
|
* Trigger instruction (to start asynchronous acquisition)
|
*/
|
#define A4L_INSN_INTTRIG (6 | A4L_INSN_MASK_WRITE | \
|
A4L_INSN_MASK_SPECIAL)
|
|
/*! @} ANALOGY_INSN_xxx */
|
|
/**
|
* Maximal wait duration
|
*/
|
#define A4L_INSN_WAIT_MAX 100000
|
|
/*!
|
* @anchor INSN_CONFIG_xxx @name Configuration instruction type
|
* @brief Values to define the type of configuration instruction
|
* @{
|
*/
|
|
#define A4L_INSN_CONFIG_DIO_INPUT 0
|
#define A4L_INSN_CONFIG_DIO_OUTPUT 1
|
#define A4L_INSN_CONFIG_DIO_OPENDRAIN 2
|
#define A4L_INSN_CONFIG_ANALOG_TRIG 16
|
#define A4L_INSN_CONFIG_ALT_SOURCE 20
|
#define A4L_INSN_CONFIG_DIGITAL_TRIG 21
|
#define A4L_INSN_CONFIG_BLOCK_SIZE 22
|
#define A4L_INSN_CONFIG_TIMER_1 23
|
#define A4L_INSN_CONFIG_FILTER 24
|
#define A4L_INSN_CONFIG_CHANGE_NOTIFY 25
|
#define A4L_INSN_CONFIG_SERIAL_CLOCK 26
|
#define A4L_INSN_CONFIG_BIDIRECTIONAL_DATA 27
|
#define A4L_INSN_CONFIG_DIO_QUERY 28
|
#define A4L_INSN_CONFIG_PWM_OUTPUT 29
|
#define A4L_INSN_CONFIG_GET_PWM_OUTPUT 30
|
#define A4L_INSN_CONFIG_ARM 31
|
#define A4L_INSN_CONFIG_DISARM 32
|
#define A4L_INSN_CONFIG_GET_COUNTER_STATUS 33
|
#define A4L_INSN_CONFIG_RESET 34
|
#define A4L_INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR 1001 /* Use CTR as single pulsegenerator */
|
#define A4L_INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR 1002 /* Use CTR as pulsetraingenerator */
|
#define A4L_INSN_CONFIG_GPCT_QUADRATURE_ENCODER 1003 /* Use the counter as encoder */
|
#define A4L_INSN_CONFIG_SET_GATE_SRC 2001 /* Set gate source */
|
#define A4L_INSN_CONFIG_GET_GATE_SRC 2002 /* Get gate source */
|
#define A4L_INSN_CONFIG_SET_CLOCK_SRC 2003 /* Set master clock source */
|
#define A4L_INSN_CONFIG_GET_CLOCK_SRC 2004 /* Get master clock source */
|
#define A4L_INSN_CONFIG_SET_OTHER_SRC 2005 /* Set other source */
|
#define A4L_INSN_CONFIG_SET_COUNTER_MODE 4097
|
#define A4L_INSN_CONFIG_SET_ROUTING 4099
|
#define A4L_INSN_CONFIG_GET_ROUTING 4109
|
|
/*! @} INSN_CONFIG_xxx */
|
|
/*!
|
* @anchor ANALOGY_COUNTER_xxx @name Counter status bits
|
* @brief Status bits for INSN_CONFIG_GET_COUNTER_STATUS
|
* @{
|
*/
|
|
#define A4L_COUNTER_ARMED 0x1
|
#define A4L_COUNTER_COUNTING 0x2
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#define A4L_COUNTER_TERMINAL_COUNT 0x4
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/*! @} ANALOGY_COUNTER_xxx */
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/*!
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* @anchor ANALOGY_IO_DIRECTION @name IO direction
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* @brief Values to define the IO polarity
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* @{
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*/
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#define A4L_INPUT 0
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#define A4L_OUTPUT 1
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#define A4L_OPENDRAIN 2
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/*! @} ANALOGY_IO_DIRECTION */
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/*!
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* @anchor ANALOGY_EV_xxx @name Events types
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* @brief Values to define the Analogy events. They might used to send
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* some specific events through the instruction interface.
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* @{
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*/
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#define A4L_EV_START 0x00040000
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#define A4L_EV_SCAN_BEGIN 0x00080000
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#define A4L_EV_CONVERT 0x00100000
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#define A4L_EV_SCAN_END 0x00200000
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#define A4L_EV_STOP 0x00400000
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/*! @} ANALOGY_EV_xxx */
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/*!
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* @brief Structure describing the synchronous instruction
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* @see a4l_snd_insn()
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*/
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struct a4l_instruction {
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unsigned int type;
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/**< Instruction type */
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unsigned int idx_subd;
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/**< Subdevice to which the instruction will be applied. */
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unsigned int chan_desc;
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/**< Channel descriptor */
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unsigned int data_size;
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/**< Size of the intruction data */
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void *data;
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/**< Instruction data */
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};
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typedef struct a4l_instruction a4l_insn_t;
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/*!
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* @brief Structure describing the list of synchronous instructions
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* @see a4l_snd_insnlist()
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*/
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struct a4l_instruction_list {
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unsigned int count;
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/**< Instructions count */
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a4l_insn_t *insns;
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/**< Tab containing the instructions pointers */
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};
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typedef struct a4l_instruction_list a4l_insnlst_t;
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/*! @} analogy_lib_sync1 */
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struct a4l_calibration_subdev {
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a4l_sbinfo_t *info;
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char *name;
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int slen;
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int idx;
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};
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struct a4l_calibration_subdev_data {
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int index;
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int channel;
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int range;
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int expansion;
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int nb_coeff;
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double *coeff;
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};
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struct a4l_calibration_data {
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char *driver_name;
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char *board_name;
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int nb_ai;
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struct a4l_calibration_subdev_data *ai;
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int nb_ao;
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struct a4l_calibration_subdev_data *ao;
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};
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struct a4l_polynomial {
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int expansion;
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int order;
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int nb_coeff;
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double *coeff;
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};
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#endif /* _RTDM_UAPI_ANALOGY_H */
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