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//
// Copyright 2013 Ettus Research LLC
//
// 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 3 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, see <http://www.gnu.org/licenses/>.
//
#ifndef INCLUDED_AD9361_TRANSACTION_H
#define INCLUDED_AD9361_TRANSACTION_H
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
//various constants
#define AD9361_TRANSACTION_VERSION 0x4
#define AD9361_DISPATCH_PACKET_SIZE 64
//action types
#define AD9361_ACTION_ECHO 0
#define AD9361_ACTION_INIT 1
#define AD9361_ACTION_SET_RX1_GAIN 2
#define AD9361_ACTION_SET_TX1_GAIN 3
#define AD9361_ACTION_SET_RX2_GAIN 4
#define AD9361_ACTION_SET_TX2_GAIN 5
#define AD9361_ACTION_SET_RX_FREQ 6
#define AD9361_ACTION_SET_TX_FREQ 7
#define AD9361_ACTION_SET_CODEC_LOOP 8
#define AD9361_ACTION_SET_CLOCK_RATE 9
#define AD9361_ACTION_SET_ACTIVE_CHAINS 10
typedef union
{
double d;
uint32_t x[2];
} ad9361_double_union_t;
static inline void ad9361_double_pack(const double input, uint32_t output[2])
{
ad9361_double_union_t p = {};
p.d = input;
output[0] = p.x[0];
output[1] = p.x[1];
}
static inline double ad9361_double_unpack(const uint32_t input[2])
{
ad9361_double_union_t p = {};
p.x[0] = input[0];
p.x[1] = input[1];
return p.d;
}
typedef struct
{
//version is expected to be AD9361_TRANSACTION_VERSION
//check otherwise for compatibility
uint32_t version;
//sequence number - increment every call for sanity
uint32_t sequence;
//action tells us what to do, see AD9361_ACTION_*
uint32_t action;
union
{
//enable mask for chains
uint32_t enable_mask;
//true to enable codec internal loopback
uint32_t codec_loop;
//freq holds request LO freq and result from tune
uint32_t freq[2];
//gain holds request gain and result from action
uint32_t gain[2];
//rate holds request clock rate and result from action
uint32_t rate[2];
} value;
//error message comes back as a reply -
//set to null string for no error \0
char error_msg[];
} ad9361_transaction_t;
#define AD9361_TRANSACTION_MAX_ERROR_MSG (AD9361_DISPATCH_PACKET_SIZE - (sizeof(ad9361_transaction_t)-4)-1) // -4 for 'error_msg' alignment padding, -1 for terminating \0
#ifdef __cplusplus
}
#endif
#endif /* INCLUDED_AD9361_TRANSACTION_H */
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