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//
// Copyright 2010 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_USRP2_FW_COMMON_H
#define INCLUDED_USRP2_FW_COMMON_H
/*!
* Structs and constants for usrp2 communication.
* This header is shared by the firmware and host code.
* Therefore, this header may only contain valid C code.
*/
#ifdef __cplusplus
#include <boost/cstdint.hpp>
#define _SINS_ boost:://stdint namespace when in c++
extern "C" {
#else
#include <stdint.h>
#define _SINS_
#endif
// define limits on bytes per udp packet
#define USRP2_MTU_BYTES 1500
#define USRP2_UDP_BYTES ((USRP2_MTU_BYTES) - (2 + 14 + 20 + 8)) //size of headers (pad, eth, ip, udp)
//defines the protocol version in this shared header
//increment this value when the protocol is changed
#define USRP2_PROTO_VERSION 5
//used to differentiate control packets over data port
#define USRP2_INVALID_VRT_HEADER 0
// size of the vrt header and trailer to the host
#define USRP2_HOST_RX_VRT_HEADER_WORDS32 5
#define USRP2_HOST_RX_VRT_TRAILER_WORDS32 1 //FIXME fpga sets wrong header size when no trailer present
// udp ports for the usrp2 communication
// Dynamic and/or private ports: 49152-65535
#define USRP2_UDP_CTRL_PORT 49152
#define USRP2_UDP_DATA_PORT 49153
typedef enum{
USRP2_CTRL_ID_HUH_WHAT = ' ',
//USRP2_CTRL_ID_FOR_SURE, //TODO error condition enums
//USRP2_CTRL_ID_SUX_MAN,
USRP2_CTRL_ID_WAZZUP_BRO = 'a',
USRP2_CTRL_ID_WAZZUP_DUDE = 'A',
USRP2_CTRL_ID_TRANSACT_ME_SOME_SPI_BRO = 's',
USRP2_CTRL_ID_OMG_TRANSACTED_SPI_DUDE = 'S',
USRP2_CTRL_ID_DO_AN_I2C_READ_FOR_ME_BRO = 'i',
USRP2_CTRL_ID_HERES_THE_I2C_DATA_DUDE = 'I',
USRP2_CTRL_ID_WRITE_THESE_I2C_VALUES_BRO = 'h',
USRP2_CTRL_ID_COOL_IM_DONE_I2C_WRITE_DUDE = 'H',
USRP2_CTRL_ID_POKE_THIS_REGISTER_FOR_ME_BRO = 'p',
USRP2_CTRL_ID_OMG_POKED_REGISTER_SO_BAD_DUDE = 'P',
USRP2_CTRL_ID_PEEK_AT_THIS_REGISTER_FOR_ME_BRO = 'r',
USRP2_CTRL_ID_WOAH_I_DEFINITELY_PEEKED_IT_DUDE = 'R',
USRP2_CTRL_ID_PEACE_OUT = '~'
} usrp2_ctrl_id_t;
typedef enum{
USRP2_DIR_RX = 'r',
USRP2_DIR_TX = 't'
} usrp2_dir_which_t;
typedef enum{
USRP2_CLK_EDGE_RISE = 'r',
USRP2_CLK_EDGE_FALL = 'f'
} usrp2_clk_edge_t;
typedef struct{
_SINS_ uint32_t proto_ver;
_SINS_ uint32_t id;
_SINS_ uint32_t seq;
union{
_SINS_ uint32_t ip_addr;
struct {
_SINS_ uint8_t dev;
_SINS_ uint8_t miso_edge;
_SINS_ uint8_t mosi_edge;
_SINS_ uint8_t readback;
_SINS_ uint32_t data;
_SINS_ uint8_t num_bits;
} spi_args;
struct {
_SINS_ uint8_t addr;
_SINS_ uint8_t bytes;
_SINS_ uint8_t data[20];
} i2c_args;
struct {
_SINS_ uint32_t addr;
_SINS_ uint32_t data;
_SINS_ uint8_t num_bytes; //1, 2, 4
} poke_args;
} data;
} usrp2_ctrl_data_t;
#ifdef __cplusplus
}
#endif
#endif /* INCLUDED_USRP2_FW_COMMON_H */
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