Paparazzi UAS  v5.15_devel-88-gb3ad7fe
Paparazzi is a free software Unmanned Aircraft System.
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hott_common.h
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1 /*
2  * Copyright (C) 2013 Alexandre Bustico, Gautier Hattenberger
3  *
4  * This file is part of paparazzi.
5  *
6  * paparazzi is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2, or (at your option)
9  * any later version.
10  *
11  * paparazzi is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with paparazzi; see the file COPYING. If not, see
18  * <http://www.gnu.org/licenses/>.
19  */
20 
27 #ifndef RC_HOTT_COMMON_H
28 #define RC_HOTT_COMMON_H
29 
30 #include "std.h"
31 #include "mcu_periph/uart.h"
32 #include "mcu_periph/gpio.h"
33 
34 /* in case you want to override RADIO_CONTROL_NB_CHANNEL */
35 #include "generated/airframe.h"
36 
43 #define RC_PPM_TICKS_OF_USEC(_v) ((_v) * 8 ) // USEC IN HOTT OUT
44 #define RC_PPM_SIGNED_TICKS_OF_USEC(_v) ((_v) * 8 ) // usec -1000 + 1000 in, HOTT out
45 #define USEC_OF_RC_PPM_TICKS(_v) ((_v) / 8) // HOTT IN USEC OUT
46 
51 #include "generated/radio.h"
52 
60 #define HOTT_NB_CHANNEL 32
61 #define HOTT_BUF_LENGTH (HOTT_NB_CHANNEL*2+3+2) // 2 bytes per chennel 3 bytes header, 2 bytes CRC
62 
66 #ifndef RADIO_CONTROL_NB_CHANNEL
67 #define RADIO_CONTROL_NB_CHANNEL HOTT_NB_CHANNEL
68 #endif
69 
70 #if RADIO_CONTROL_NB_CHANNEL > HOTT_NB_CHANNEL
71 #error "RADIO_CONTROL_NB_CHANNEL mustn't be higher than 32."
72 #endif
73 
77 struct SHott {
85 };
86 
90 void hott_common_init(struct SHott *hott, struct uart_periph *dev);
91 
95 void hott_common_decode_event(struct SHott *hott, struct uart_periph *dev);
96 
97 
101 extern void radio_control_impl_event(void (* _received_frame_handler)(void));
102 
106 #define RadioControlEvent(_received_frame_handler) radio_control_impl_event(_received_frame_handler)
107 
108 
109 #endif /* RC_HOTT_H */
unsigned short uint16_t
Definition: types.h:16
arch independent UART (Universal Asynchronous Receiver/Transmitter) API
uint16_t ppm[HOTT_NB_CHANNEL]
decoded and converted values
Definition: hott_common.h:79
uint8_t buffer[HOTT_BUF_LENGTH]
input buffer
Definition: hott_common.h:81
Some architecture independent helper functions for GPIOs.
bool frame_available
new frame available
Definition: hott_common.h:80
HOTT structure.
Definition: hott_common.h:77
#define HOTT_NB_CHANNEL
Generated code holding the description of a given transmitter.
Definition: hott_common.h:60
uint8_t status
decoder state machine status
Definition: hott_common.h:84
uint8_t idx
input index
Definition: hott_common.h:83
uint8_t expected_channels
expected number of channels send in header
Definition: hott_common.h:82
void hott_common_init(struct SHott *hott, struct uart_periph *dev)
Init function.
Definition: hott_common.c:42
UART peripheral.
Definition: uart.h:70
uint16_t pulses[HOTT_NB_CHANNEL]
decoded values
Definition: hott_common.h:78
static const struct usb_device_descriptor dev
Definition: usb_ser_hw.c:73
unsigned char uint8_t
Definition: types.h:14
void radio_control_impl_event(void(*_received_frame_handler)(void))
RC event function with handler callback.
Definition: hott.c:66
struct SHott hott
HOTT struct.
Definition: hott.c:33
void hott_common_decode_event(struct SHott *hott, struct uart_periph *dev)
Decoding event function.
Definition: hott_common.c:98
#define HOTT_BUF_LENGTH
Definition: hott_common.h:61