summaryrefslogtreecommitdiff
path: root/software/hhd70dongle.old/hhd70dongle.c
blob: 31f511d74125aef1ec0a47fcdc76f0c8642746cb (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
/*
 *
 *  mur.sat
 *
 *  Somewhen in the year 20xx, mur.at will have a nano satellite launched
 *  into a low earth orbit (310 km above the surface of our planet). The
 *  satellite itself is a TubeSat personal satellite kit, developed and
 *  launched by interorbital systems. mur.sat is a joint venture of mur.at,
 *  ESC im Labor and realraum.
 *
 *  Please visit the project hompage at sat.mur.at for further information.
 *
 *
 *  Copyright (C) 2012 Bernhard Tittelbach <xro@realraum.at>
 *                2015 Christian Pointner <equinox@mur.at>
 *
 *  This file is part of mur.sat.
 *
 *  mur.sat 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
 *  any later version.
 *
 *  mur.sat 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 mur.sat. If not, see <http://www.gnu.org/licenses/>.
 *
 */
#include <avr/io.h>
#include <avr/wdt.h>
#include <util/delay.h>
#include <stdio.h>
#include <avr/interrupt.h>
//#include <avr/power.h>

#include "led.h"
#include "util.h"
#include "usbio.h"

#include "hhd70.h"
#include "c1101lib.h"

//todo: move to separte File:

// If TTX_EN goes high, ~ <=500ms before TTX CW Sender forcefully disables our RX/TX Signal Path
//IF TTX_EN goes low, we have ~ 1min (Beacon Interval) until the next CW Beacon is  sent and our RX/TX Signal Path is forcefully disabled
// Beacon Interval Time can be measured by counting with an interrupt triggered by RTC_SECONDS Input
//#define TTX_EN  <port>
//#define RTC_SECONDS <port>


#define CPU_PRESCALE(n) do { CLKPR = 0x80; CLKPR = (n); } while(0)
char read_buffer[64]; // buffer for reading usb signals
char write_buffer[64]; // buffer for writing usb signals

//TODOs:
//* make adc work ?
// * remove code duplications
// * speed up and simplify code
// * make as much use of sleep modes as possible
// * use adc noise canceler (i.e. automatic sampling during cpu sleep)
// * read atmega temp
// * safely save state in eeprom (2 memory regions, only use the one with the "written successfully bit" which is written last)
// * what if c1101 resets spuriously and clears it's settings ? -> check peridically ?

bool enable_tx_part=false;
bool enable_rx_part=false;
bool enable_beacon_part=false;
bool beacon_state=false;

void print_part_status(void)
{
    printf("OOK Beacon: ");
    printf(((enable_beacon_part)? "Enabled": "Disabled") );
    printf("\r\n");
    printf("RX-Part: ");
    printf(((enable_rx_part)? "Enabled": "Disabled") );
    printf("\r\n");
    printf("TX-Part: ");
    printf(((enable_tx_part)? "Enabled": "Disabled") );
    printf("\r\n");
}

//void generate_morse_code_sequence(char *msg, *cw_buffer, uint16_t buffer_len)
//{
    //char cw_short[2] = {1,1};
    //char cw_long[2] = {1,3};
    //char cw_space[2] = {0, 1};
    //char cw_letterspace[2] = {0,3};
    //char cw_wordspace[2] = {0, 7};
//}

void beacon_enable(void)
{
    c1101_spi_strobe_command(SPIC1101_ADDR_STX);
    hhd70_palna_txmode();
}

void beacon_on(void)
{
    beacon_state = true;
    hhd70_set_OOK_GDO0_high();
    led_on();
}

void beacon_off(void)
{
    led_off();
    hhd70_set_OOK_GDO0_low();
    beacon_state = false;
}

void beacon_disable(void)
{
    hhd70_palna_rxmode();
    c1101_spi_strobe_command(SPIC1101_ADDR_SIDLE);
}

int main(void)
{
    MCUSR &= ~(1 << WDRF);
    wdt_disable(); // FIXME: disable WatchDog for now, but use it later...
    CPU_PRESCALE(0); //cpu_init

    led_init();
    usbio_init();

    hhd70_init();
    DDRB &= ~(1<<DDB5);     // set PB5/ADC12 to INPUT (c1101 temp sensor)
    sei();  //set enable global interrupt

    printf("hhd70dongle ready\r\n");

    _delay_ms(500);
    c1101_spi_strobe_command(SPIC1101_ADDR_SRES); // reset c1101
    //c1101 init now happens after pressing B, S or E

    hhd70_palna_rxmode();
    hhd70_bias_set(255);

    enable_tx_part=false;
    enable_rx_part=false;
    enable_beacon_part=false;
    int8_t fdev_m = 1;
    int8_t fdev_e = 1;
    uint32_t prev_ook_freq = c1101_getCurrentCarrierFrequencyHz();

    //char mursat_beacon[256];
    //for(int i=0;i<sizeof(mursat_beacon);++i) {
    //  mursat_beacon[i] = 0xFF;
    //}

    for(;;)
    {
        int16_t num_bytes_received = usbio_bytes_received();
        while(num_bytes_received > 0)
        {
            int16_t recv_byte = fgetc(stdin);
            num_bytes_received--;
            if (recv_byte == EOF)
              continue;
            if ((char) recv_byte == '!')
            {
                printf("resetting\r\n");
                wdt_enable(WDTO_500MS);
                reset();
            }
            else if ((char) recv_byte == 'N') {
              enable_tx_part=false;
              enable_rx_part=false;
              enable_beacon_part=false;
              c1101_spi_strobe_command(SPIC1101_ADDR_SRES); // reset c1101
              hhd70_palna_rxmode();
              print_part_status();
              led_off();
            }
            else if ((char) recv_byte == 'B')
            {
                enable_beacon_part = !enable_beacon_part;
                if (enable_beacon_part)
                {
                    enable_rx_part=false;
                    enable_tx_part=false;
                    c1101_init_ook_beacon();

                    printf("CC1101 enabling Beacon with Power: %3d (0x%02X)\r\n", (int)c1101_ook_power_get(), (int)c1101_ook_power_get_raw());

                    beacon_enable();
                    beacon_on();
                }
                print_part_status();
            }
            else if ((char) recv_byte == 'E')
            {
                enable_rx_part = !enable_rx_part;
                if (enable_rx_part)
                {
                    enable_beacon_part=false;
                    c1101_init();
                }
                print_part_status();
            }
            else if ((char) recv_byte == 'S')
            {
                enable_tx_part = !enable_tx_part;
                if (enable_tx_part)
                {
                    enable_beacon_part=false;
                    c1101_init();
                }
                print_part_status();
            }
            else if ((char) recv_byte == 'R')
            {
                c1101_spi_dump_registers_to_usb();
                print_part_status();
            }
            else if ((char) recv_byte == 'D' || (char) recv_byte == 'd')
            {
                printf("FSK Freq Deviation Now: %u0 Hz\r\n", c1101_setFSKDeviationFromCarrier(fdev_m, fdev_e));
                if ((char) recv_byte == 'd')
                {
                    fdev_m--;
                    if (fdev_m < 0)
                    {
                        fdev_e = (fdev_e - 1) % 8;
                        if (fdev_e < 0)
                            fdev_e = 7;
                        fdev_m = 7;
                    }
                    fdev_m %= 8;
                }
                else
                {
                    fdev_m++;
                    if (fdev_m > 7)
                      fdev_e = (fdev_e + 1) % 8;
                    fdev_m %= 8;
                }
            }
            else if ((char) recv_byte == '+' || (char) recv_byte == '-' || (char) recv_byte == '#' || (char) recv_byte == '_'  || (char) recv_byte == ':' || (char) recv_byte == '.'  || (char) recv_byte == 'f'|| (char) recv_byte == '?')
            {
                int32_t change_freq = 0;
                switch (recv_byte)
                {
                    case '+':
                        change_freq = 1000000;
                        break;
                    case '-':
                        change_freq = -1000000;
                        break;
                    case '#':
                        change_freq = 10000000;
                        break;
                    case '_':
                        change_freq = -10000000;
                        break;
                    case ':':
                        change_freq = 100000;
                        break;
                    case '.':
                        change_freq = -100000;
                        break;
                    case 'f':
                        printf("Setting Frequency to previously adjusted value.\r\n");
                        c1101_setFrequency(prev_ook_freq);
                        break;
                    case '?':
                        //just show current frequency
                        break;
                }
                if (change_freq != 0)
                {
                        if (enable_beacon_part) beacon_off();
                        beacon_disable();

                        printf("Frequency %s by %lu KHz - ", (change_freq > 0 ? "up" : "down"), (change_freq > 0 ? 1 : -1) * change_freq / 1000);
                        c1101_changeFrequencyByRelativeValue(change_freq);
                        prev_ook_freq = c1101_getCurrentCarrierFrequencyHz();

                        if (enable_beacon_part) {
                          beacon_enable();
                          beacon_on();
                        }
                }
                uint32_t hz = c1101_getCurrentCarrierFrequencyHz();
                uint16_t mhz = hz / 1000000;
                uint16_t khz = (hz % 1000000)/1000;
                hz %= 1000;
                printf("Frequency is now: %d.%03d%03d MHz\r\n", mhz, khz, (uint16_t)hz);
            }
            else if ((char) recv_byte == 'p')
            {
                hhd70_bias_dec();
                printf("Bias Power is now: %d\r\n", hhd70_bias_get());
            }
            else if ((char) recv_byte == 'P')
            {
                hhd70_bias_inc();
                printf("Bias Power is now: %d\r\n", hhd70_bias_get());
            }
            else if ((char) recv_byte == 'o')
            {
                if (enable_beacon_part) beacon_off();
                beacon_disable();

                c1101_ook_power_dec();
                printf("CC1101 Power is now: %3d (0x%02X)\r\n", (int)c1101_ook_power_get(), (int)c1101_ook_power_get_raw());

                if (enable_beacon_part) {
                    beacon_enable();
                    beacon_on();
                }
            }
            else if ((char) recv_byte == 'O')
            {
                if (enable_beacon_part) beacon_off();
                beacon_disable();

                c1101_ook_power_inc();
                printf("CC1101 Power is now: %3d (0x%02X)\r\n", (int)c1101_ook_power_get(), (int)c1101_ook_power_get_raw());

                if (enable_beacon_part) {
                    beacon_enable();
                    beacon_on();
                }
            }
            else if ((char) recv_byte == ' ')
            {
                if (enable_beacon_part) {
                    /* hhd70_set_OOK_GDO0_toggle(); */
                    if(beacon_state) {
                      beacon_state = false;
                      hhd70_set_OOK_GDO0_low();
                      led_off();
                      hhd70_palna_rxmode();
                    } else {
                      beacon_state = true;
                      hhd70_set_OOK_GDO0_high();
                      led_on();
                      hhd70_palna_txmode();
                    }
                }
            }
        }

        usbio_task();

        if (enable_rx_part)
        {

            c1101_spi_strobe_command(SPIC1101_ADDR_SRX); // enter RX - Mode
            _delay_ms(1000);

            if (hhd70_rx_data_available())
            {
                led_on();
                printf("RX: GDO2 pin HIGH\r\n");
                printf("c1101 rx bytes:");
                debug_sprint_int16hex(write_buffer, c1101_spi_read_register(SPIC1101_ADDR_RXBYTES));
                printf("%s", write_buffer);
                printf("\r\n");
                c1101_recieveData();
                led_off();
            }

            printf("c1101 rssi: ");
            debug_sprint_int16hex(write_buffer, c1101_spi_read_register(SPIC1101_ADDR_RSSI));
            printf("%s", write_buffer);
            printf("\r\n");
            printf("c1101 tx bytes: ");
            debug_sprint_int16hex(write_buffer, c1101_spi_read_register(SPIC1101_ADDR_TXBYTES));
            printf("%s", write_buffer);
            printf("\r\n");
            printf("c1101 rx bytes: ");
            int16_t num_rx_bytes = c1101_spi_read_register(SPIC1101_ADDR_RXBYTES);
            debug_sprint_int16hex(write_buffer, num_rx_bytes);
            printf("%s", write_buffer);
            printf("\r\n");


            //~ if (num_rx_bytes > 0)
            //~ {
                //~ led_on();
                //~ printf("RX  Buffer Non-Empty\r\n");
                //~ c1101_recieveData();
                //~ led_off();
            //~ }

//            printf("c1101 status byte: ");
//            debug_sprint_int16hex(write_buffer, c1101_getStatus());
//            printf("%s", write_buffer);
//            printf("\r\n");

        }

        if (enable_tx_part)
        {
            /* write_buffer[0]='T'; */
            /* write_buffer[1]='e'; */
            /* write_buffer[2]='m'; */
            /* write_buffer[3]='p'; */
            /* write_buffer[4]='s'; */
            /* write_buffer[5]=':'; */
            /* adc_on(); */
            /* _delay_ms(250); */
            /* printf("temp c1101: "); */
            /* debug_sprint_int16hex(write_buffer+6, c1101_measureTemp()); */
            /* printf("%s", write_buffer+6); */
            /* printf("\r\n"); */
            /* _delay_ms(250); */
            /* printf("temp atmega: "); */
            /* debug_sprint_int16hex(write_buffer+10, adc_read(ADCMUX_ADC12)); */
            /* printf("%s", write_buffer+10); */
            /* printf("\r\n"); */
            /* adc_off(); */
            /* _delay_ms(250); */
            /* led_on(); */
            /* printf("TX Data: String\r\n"); */
            c1101_transmitData_infPktMode("OE6EOF test mur.sat GFSK r:9k6 fdev:11kHz 1234567890123456789012345678901234567890 End of Test",93);
            /* led_off(); */
            /* _delay_ms(100); */
            /* led_on(); */
            /* printf("TX Data: Temps\r\n"); */
            /* c1101_transmitData_infPktMode((char*) write_buffer,14); */
            /* led_off(); */
        }

/*        if (enable_beacon_part)
        {
            //char mursat_beacon[8] = {0b11101110, 0b11100010, 0b00111010, 0b10101000, 0b10001110, 0b11101110, 0b00101011, 0b10100000}; //OE6EOF
            printf("OOK Sending Beacon\r\n");
            led_on();
            //c1101_transmitData_infPktMode(mursat_beacon,sizeof(mursat_beacon));
            hhd70_palna_txmode();
            c1101_spi_strobe_command(SPIC1101_ADDR_STX);
            hhd70_set_OOK_GDO0_high();
            _delay_ms(1000);
            led_off();
            hhd70_set_OOK_GDO0_low();
            c1101_spi_strobe_command(SPIC1101_ADDR_SIDLE);
            hhd70_palna_rxmode();
            _delay_ms(200);
            }*/
    }
}