gnss  2.0.0.0
gnss.h
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22 
28 #ifndef GNSS_H
29 #define GNSS_H
30 
31 #ifdef __cplusplus
32 extern "C"{
33 #endif
34 
39 #ifdef PREINIT_SUPPORTED
40 #include "preinit.h"
41 #endif
42 
43 #ifdef MikroCCoreVersion
44  #if MikroCCoreVersion >= 1
45  #include "delays.h"
46  #endif
47 #endif
48 
49 #include "drv_digital_out.h"
50 #include "drv_digital_in.h"
51 #include "drv_uart.h"
52 
73 #define GNSS_RSP_START "$"
74 #define GNSS_RSP_DELIMITER ","
75 #define GNSS_RSP_END_SEQ "\r\n"
76 #define GNSS_RSP_GPGGA "$GPGGA"
77 
82 #define GNSS_GPGGA_ELEMENT_SIZE 15
83 #define GNSS_GPGGA_TIME 1
84 #define GNSS_GPGGA_LATITUDE 2
85 #define GNSS_GPGGA_LATITUDE_SIDE 3
86 #define GNSS_GPGGA_LONGITUDE 4
87 #define GNSS_GPGGA_LONGITUDE_SIDE 5
88 #define GNSS_GPGGA_QUALITY_INDICATOR 6
89 #define GNSS_GPGGA_NUMBER_OF_SATELLITES 7
90 #define GNSS_GPGGA_H_DILUTION_OF_POS 8
91 #define GNSS_GPGGA_ALTITUDE 9
92 #define GNSS_GPGGA_ALTITUDE_UNIT 10
93 #define GNSS_GPGGA_GEOIDAL_SEPARATION 11
94 #define GNSS_GPGGA_GEOIDAL_SEPARATION_UNIT 12
95 #define GNSS_GPGGA_TIME_SINCE_LAST_DGPS 13
96 #define GNSS_GPGGA_DGPS_REFERENCE_STATION_ID 14
97 
103 #define GNSS_DRV_TX_BUFFER_SIZE 100
104 #define GNSS_DRV_RX_BUFFER_SIZE 1000
105  // gnss_cmd
107 
122 #define GNSS_MAP_MIKROBUS( cfg, mikrobus ) \
123  cfg.tx_pin = MIKROBUS( mikrobus, MIKROBUS_TX ); \
124  cfg.rx_pin = MIKROBUS( mikrobus, MIKROBUS_RX ); \
125  cfg.fon = MIKROBUS( mikrobus, MIKROBUS_CS ); \
126  cfg.rst = MIKROBUS( mikrobus, MIKROBUS_RST )
127  // gnss_map // gnss
130 
135 typedef struct
136 {
137  // Output pins
138  digital_out_t rst;
139  digital_out_t fon;
140 
141  // Modules
142  uart_t uart;
144  // Buffers
145  char uart_rx_buffer[ GNSS_DRV_RX_BUFFER_SIZE ];
146  char uart_tx_buffer[ GNSS_DRV_TX_BUFFER_SIZE ];
148 } gnss_t;
149 
154 typedef struct
155 {
156  // Communication gpio pins
157  pin_name_t rx_pin;
158  pin_name_t tx_pin;
160  // Additional gpio pins
161  pin_name_t rst;
162  pin_name_t fon;
163 
164  // Static variable
165  uint32_t baud_rate;
167  uart_data_bits_t data_bit;
168  uart_parity_t parity_bit;
169  uart_stop_bits_t stop_bit;
171 } gnss_cfg_t;
172 
177 typedef enum
178 {
179  GNSS_OK = 0,
180  GNSS_ERROR = -1
181 
183 
200 
214 err_t gnss_init ( gnss_t *ctx, gnss_cfg_t *cfg );
215 
228 err_t gnss_generic_write ( gnss_t *ctx, char *data_in, uint16_t len );
229 
242 err_t gnss_generic_read ( gnss_t *ctx, char *data_out, uint16_t len );
243 
253 
263 void gnss_set_rst_pin ( gnss_t *ctx, uint8_t state );
264 
274 void gnss_set_fon_pin ( gnss_t *ctx, uint8_t state );
275 
287 err_t gnss_parse_gpgga ( char *rsp_buf, uint8_t gpgga_element, char *element_data );
288 
289 #ifdef __cplusplus
290 }
291 #endif
292 #endif // GNSS_H
293  // gnss
295 
296 // ------------------------------------------------------------------------ END
gnss_init
err_t gnss_init(gnss_t *ctx, gnss_cfg_t *cfg)
GNSS initialization function.
gnss_return_value_t
gnss_return_value_t
GNSS Click return value data.
Definition: gnss.h:178
gnss_t::rst
digital_out_t rst
Definition: gnss.h:138
GNSS_DRV_TX_BUFFER_SIZE
#define GNSS_DRV_TX_BUFFER_SIZE
GNSS driver buffer size.
Definition: gnss.h:103
gnss_generic_read
err_t gnss_generic_read(gnss_t *ctx, char *data_out, uint16_t len)
GNSS data reading function.
gnss_t
GNSS Click context object.
Definition: gnss.h:136
gnss_t::uart
uart_t uart
Definition: gnss.h:142
GNSS_ERROR
@ GNSS_ERROR
Definition: gnss.h:180
gnss_cfg_t::baud_rate
uint32_t baud_rate
Definition: gnss.h:165
gnss_generic_write
err_t gnss_generic_write(gnss_t *ctx, char *data_in, uint16_t len)
GNSS data writing function.
gnss_cfg_t
GNSS Click configuration object.
Definition: gnss.h:155
gnss_cfg_t::rst
pin_name_t rst
Definition: gnss.h:161
gnss_clear_ring_buffers
void gnss_clear_ring_buffers(gnss_t *ctx)
GNSS clear ring buffers function.
gnss_cfg_t::stop_bit
uart_stop_bits_t stop_bit
Definition: gnss.h:169
gnss_set_rst_pin
void gnss_set_rst_pin(gnss_t *ctx, uint8_t state)
GNSS set RST pin function.
gnss_cfg_t::rx_pin
pin_name_t rx_pin
Definition: gnss.h:157
gnss_parse_gpgga
err_t gnss_parse_gpgga(char *rsp_buf, uint8_t gpgga_element, char *element_data)
GNSS parse GPGGA function.
gnss_t::fon
digital_out_t fon
Definition: gnss.h:139
gnss_cfg_t::tx_pin
pin_name_t tx_pin
Definition: gnss.h:158
gnss_cfg_t::data_bit
uart_data_bits_t data_bit
Definition: gnss.h:167
GNSS_OK
@ GNSS_OK
Definition: gnss.h:179
gnss_cfg_t::uart_blocking
bool uart_blocking
Definition: gnss.h:166
GNSS_DRV_RX_BUFFER_SIZE
#define GNSS_DRV_RX_BUFFER_SIZE
Definition: gnss.h:104
gnss_cfg_t::fon
pin_name_t fon
Definition: gnss.h:162
gnss_cfg_setup
void gnss_cfg_setup(gnss_cfg_t *cfg)
GNSS configuration object setup function.
gnss_cfg_t::parity_bit
uart_parity_t parity_bit
Definition: gnss.h:168
gnss_set_fon_pin
void gnss_set_fon_pin(gnss_t *ctx, uint8_t state)
GNSS set FON pin function.