2 * Copyright © 2009 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
23 /* Values from SmartRF® Studio for:
25 * Deviation: 20.507812 kHz
26 * Datarate: 38.360596 kBaud
28 * RF Freq: 434.549927 MHz
29 * Channel: 99.975586 kHz
31 * RX filter: 93.75 kHz
35 * For IF freq of 140.62kHz, the IF value is:
37 * 140.62e3 / (24e6 / 2**10) = 6
40 #define IF_FREQ_CONTROL 6
43 * For channel bandwidth of 93.75 kHz, the CHANBW_E and CHANBW_M values are
45 * BW = 24e6 / (8 * (4 + M) * 2 ** E)
54 * For a symbol rate of 38360kBaud, the DRATE_E and DRATE_M values are:
56 * R = (256 + M) * 2** E * 24e6 / 2**28
58 * So M is 163 and E is 10
65 * For a channel deviation of 20.5kHz, the DEVIATION_E and DEVIATION_M values are:
67 * F = 24e6/2**17 * (8 + DEVIATION_M) * 2**DEVIATION_E
69 * So M is 6 and E is 3
76 * For our RDF beacon, set the symbol rate to 2kBaud (for a 1kHz tone),
77 * so the DRATE_E and DRATE_M values are:
81 * To make the tone last for 200ms, we need 2000 * .2 = 400 bits or 50 bytes
85 #define RDF_DRATE_M 94
86 #define RDF_PACKET_LEN 50
89 * RDF deviation should match the normal NFM value of 5kHz
95 #define RDF_DEVIATION_M 6
96 #define RDF_DEVIATION_E 1
98 /* This are from the table for 433MHz */
100 #define RF_POWER_M30_DBM 0x12
101 #define RF_POWER_M20_DBM 0x0e
102 #define RF_POWER_M15_DBM 0x1d
103 #define RF_POWER_M10_DBM 0x34
104 #define RF_POWER_M5_DBM 0x2c
105 #define RF_POWER_0_DBM 0x60
106 #define RF_POWER_5_DBM 0x84
107 #define RF_POWER_7_DBM 0xc8
108 #define RF_POWER_10_DBM 0xc0
110 #define RF_POWER RF_POWER_10_DBM
112 static __code uint8_t radio_setup[] = {
113 RF_PA_TABLE7_OFF, RF_POWER,
114 RF_PA_TABLE6_OFF, RF_POWER,
115 RF_PA_TABLE5_OFF, RF_POWER,
116 RF_PA_TABLE4_OFF, RF_POWER,
117 RF_PA_TABLE3_OFF, RF_POWER,
118 RF_PA_TABLE2_OFF, RF_POWER,
119 RF_PA_TABLE1_OFF, RF_POWER,
120 RF_PA_TABLE0_OFF, RF_POWER,
122 RF_FSCTRL1_OFF, (IF_FREQ_CONTROL << RF_FSCTRL1_FREQ_IF_SHIFT),
123 RF_FSCTRL0_OFF, (0 << RF_FSCTRL0_FREQOFF_SHIFT),
125 RF_MDMCFG4_OFF, ((CHANBW_E << RF_MDMCFG4_CHANBW_E_SHIFT) |
126 (CHANBW_M << RF_MDMCFG4_CHANBW_M_SHIFT) |
127 (DRATE_E << RF_MDMCFG4_DRATE_E_SHIFT)),
128 RF_MDMCFG3_OFF, (DRATE_M << RF_MDMCFG3_DRATE_M_SHIFT),
129 RF_MDMCFG2_OFF, (RF_MDMCFG2_DEM_DCFILT_ON |
130 RF_MDMCFG2_MOD_FORMAT_GFSK |
131 RF_MDMCFG2_SYNC_MODE_15_16),
132 RF_MDMCFG1_OFF, (RF_MDMCFG1_FEC_EN |
133 RF_MDMCFG1_NUM_PREAMBLE_4 |
134 (2 << RF_MDMCFG1_CHANSPC_E_SHIFT)),
135 RF_MDMCFG0_OFF, (17 << RF_MDMCFG0_CHANSPC_M_SHIFT),
139 RF_DEVIATN_OFF, ((DEVIATION_E << RF_DEVIATN_DEVIATION_E_SHIFT) |
140 (DEVIATION_M << RF_DEVIATN_DEVIATION_M_SHIFT)),
142 /* SmartRF says set LODIV_BUF_CURRENT_TX to 0
143 * And, we're not using power ramping, so use PA_POWER 0
145 RF_FREND0_OFF, ((1 << RF_FREND0_LODIV_BUF_CURRENT_TX_SHIFT) |
146 (0 << RF_FREND0_PA_POWER_SHIFT)),
148 RF_FREND1_OFF, ((1 << RF_FREND1_LNA_CURRENT_SHIFT) |
149 (1 << RF_FREND1_LNA2MIX_CURRENT_SHIFT) |
150 (1 << RF_FREND1_LODIV_BUF_CURRENT_RX_SHIFT) |
151 (2 << RF_FREND1_MIX_CURRENT_SHIFT)),
158 RF_TEST2_OFF, RF_TEST2_RX_LOW_DATA_RATE_MAGIC,
159 RF_TEST1_OFF, RF_TEST1_RX_LOW_DATA_RATE_MAGIC,
162 /* default sync values */
166 /* max packet length */
167 RF_PKTCTRL1_OFF, ((1 << PKTCTRL1_PQT_SHIFT)|
168 PKTCTRL1_APPEND_STATUS|
169 PKTCTRL1_ADR_CHK_NONE),
170 RF_PKTCTRL0_OFF, (RF_PKTCTRL0_WHITE_DATA|
171 RF_PKTCTRL0_PKT_FORMAT_NORMAL|
173 RF_PKTCTRL0_LENGTH_CONFIG_FIXED),
175 RF_MCSM2_OFF, (RF_MCSM2_RX_TIME_END_OF_PACKET),
176 RF_MCSM1_OFF, (RF_MCSM1_CCA_MODE_RSSI_BELOW_UNLESS_RECEIVING|
177 RF_MCSM1_RXOFF_MODE_IDLE|
178 RF_MCSM1_TXOFF_MODE_IDLE),
179 RF_MCSM0_OFF, (RF_MCSM0_FS_AUTOCAL_FROM_IDLE|
181 RF_MCSM0_CLOSE_IN_RX_0DB),
182 RF_FOCCFG_OFF, (RF_FOCCFG_FOC_PRE_K_3K,
183 RF_FOCCFG_FOC_POST_K_PRE_K,
184 RF_FOCCFG_FOC_LIMIT_BW_OVER_4),
185 RF_BSCFG_OFF, (RF_BSCFG_BS_PRE_K_2K|
186 RF_BSCFG_BS_PRE_KP_3KP|
187 RF_BSCFG_BS_POST_KI_PRE_KI|
188 RF_BSCFG_BS_POST_KP_PRE_KP|
189 RF_BSCFG_BS_LIMIT_0),
190 RF_AGCCTRL2_OFF, (RF_AGCCTRL2_MAX_DVGA_GAIN_ALL|
191 RF_AGCCTRL2_MAX_LNA_GAIN_0|
192 RF_AGCCTRL2_MAGN_TARGET_33dB),
193 RF_AGCCTRL1_OFF, (RF_AGCCTRL1_AGC_LNA_PRIORITY_0 |
194 RF_AGCCTRL1_CARRIER_SENSE_REL_THR_DISABLE |
195 RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_0DB),
196 RF_AGCCTRL0_OFF, (RF_AGCCTRL0_HYST_LEVEL_NONE |
197 RF_AGCCTRL0_WAIT_TIME_8 |
198 RF_AGCCTRL0_AGC_FREEZE_NORMAL |
199 RF_AGCCTRL0_FILTER_LENGTH_8),
205 static __code uint8_t rdf_setup[] = {
206 RF_MDMCFG4_OFF, ((CHANBW_E << RF_MDMCFG4_CHANBW_E_SHIFT) |
207 (CHANBW_M << RF_MDMCFG4_CHANBW_M_SHIFT) |
208 (RDF_DRATE_E << RF_MDMCFG4_DRATE_E_SHIFT)),
209 RF_MDMCFG3_OFF, (RDF_DRATE_M << RF_MDMCFG3_DRATE_M_SHIFT),
210 RF_MDMCFG2_OFF, (RF_MDMCFG2_DEM_DCFILT_OFF |
211 RF_MDMCFG2_MOD_FORMAT_GFSK |
212 RF_MDMCFG2_SYNC_MODE_NONE),
213 RF_MDMCFG1_OFF, (RF_MDMCFG1_FEC_DIS |
214 RF_MDMCFG1_NUM_PREAMBLE_2 |
215 (2 << RF_MDMCFG1_CHANSPC_E_SHIFT)),
217 RF_DEVIATN_OFF, ((RDF_DEVIATION_E << RF_DEVIATN_DEVIATION_E_SHIFT) |
218 (RDF_DEVIATION_M << RF_DEVIATN_DEVIATION_M_SHIFT)),
220 /* packet length is set in-line */
221 RF_PKTCTRL1_OFF, ((0 << PKTCTRL1_PQT_SHIFT)|
222 PKTCTRL1_ADR_CHK_NONE),
223 RF_PKTCTRL0_OFF, (RF_PKTCTRL0_PKT_FORMAT_NORMAL|
224 RF_PKTCTRL0_LENGTH_CONFIG_FIXED),
227 static __code uint8_t fixed_pkt_setup[] = {
228 RF_MDMCFG4_OFF, ((CHANBW_E << RF_MDMCFG4_CHANBW_E_SHIFT) |
229 (CHANBW_M << RF_MDMCFG4_CHANBW_M_SHIFT) |
230 (DRATE_E << RF_MDMCFG4_DRATE_E_SHIFT)),
231 RF_MDMCFG3_OFF, (DRATE_M << RF_MDMCFG3_DRATE_M_SHIFT),
232 RF_MDMCFG2_OFF, (RF_MDMCFG2_DEM_DCFILT_ON |
233 RF_MDMCFG2_MOD_FORMAT_GFSK |
234 RF_MDMCFG2_SYNC_MODE_15_16),
235 RF_MDMCFG1_OFF, (RF_MDMCFG1_FEC_EN |
236 RF_MDMCFG1_NUM_PREAMBLE_4 |
237 (2 << RF_MDMCFG1_CHANSPC_E_SHIFT)),
239 RF_DEVIATN_OFF, ((DEVIATION_E << RF_DEVIATN_DEVIATION_E_SHIFT) |
240 (DEVIATION_M << RF_DEVIATN_DEVIATION_M_SHIFT)),
242 /* max packet length -- now set inline */
243 RF_PKTCTRL1_OFF, ((1 << PKTCTRL1_PQT_SHIFT)|
244 PKTCTRL1_APPEND_STATUS|
245 PKTCTRL1_ADR_CHK_NONE),
246 RF_PKTCTRL0_OFF, (RF_PKTCTRL0_WHITE_DATA|
247 RF_PKTCTRL0_PKT_FORMAT_NORMAL|
249 RF_PKTCTRL0_LENGTH_CONFIG_FIXED),
252 __xdata uint8_t ao_radio_dma;
253 __xdata uint8_t ao_radio_dma_done;
254 __xdata uint8_t ao_radio_done;
255 __xdata uint8_t ao_radio_abort;
256 __xdata uint8_t ao_radio_mutex;
258 #if PACKET_HAS_MASTER || HAS_AES
259 #define NEED_RADIO_RSSI 1
262 #ifndef NEED_RADIO_RSSI
263 #define NEED_RADIO_RSSI 0
267 __xdata int8_t ao_radio_rssi;
271 ao_radio_general_isr(void) __interrupt 16
274 if (RFIF & RFIF_IM_TIMEOUT) {
275 ao_radio_recv_abort();
276 RFIF &= ~ RFIF_IM_TIMEOUT;
277 } else if (RFIF & RFIF_IM_DONE) {
279 ao_wakeup(&ao_radio_done);
280 RFIF &= ~RFIF_IM_DONE;
285 ao_radio_set_packet(void)
288 for (i = 0; i < sizeof (fixed_pkt_setup); i += 2)
289 RF[fixed_pkt_setup[i]] = fixed_pkt_setup[i+1];
295 if (RF_MARCSTATE != RF_MARCSTATE_IDLE)
300 } while (RF_MARCSTATE != RF_MARCSTATE_IDLE);
304 #define ao_radio_put() ao_mutex_put(&ao_radio_mutex)
307 ao_radio_get(uint8_t len)
310 ao_mutex_get(&ao_radio_mutex);
313 RF_FREQ2 = (uint8_t) (ao_config.radio_setting >> 16);
314 RF_FREQ1 = (uint8_t) (ao_config.radio_setting >> 8);
315 RF_FREQ0 = (uint8_t) (ao_config.radio_setting);
321 ao_radio_send(__xdata void *packet, uint8_t size) __reentrant
325 ao_dma_set_transfer(ao_radio_dma,
329 DMA_CFG0_WORDSIZE_8 |
330 DMA_CFG0_TMODE_SINGLE |
331 DMA_CFG0_TRIGGER_RADIO,
334 DMA_CFG1_PRIORITY_HIGH);
335 ao_dma_start(ao_radio_dma);
337 __critical while (!ao_radio_done)
338 ao_sleep(&ao_radio_done);
343 ao_radio_recv(__xdata void *packet, uint8_t size, uint8_t timeout) __reentrant
346 ao_radio_get(size - 2);
347 ao_dma_set_transfer(ao_radio_dma,
351 DMA_CFG0_WORDSIZE_8 |
352 DMA_CFG0_TMODE_SINGLE |
353 DMA_CFG0_TRIGGER_RADIO,
356 DMA_CFG1_PRIORITY_HIGH);
357 ao_dma_start(ao_radio_dma);
360 /* Wait for DMA to be done, for the radio receive process to
361 * get aborted or for a receive timeout to fire
365 __critical while (!ao_radio_dma_done && !ao_radio_abort)
366 if (ao_sleep(&ao_radio_dma_done))
371 /* If recv was aborted, clean up by stopping the DMA engine
372 * and idling the radio
374 if (!ao_radio_dma_done) {
375 ao_dma_abort(ao_radio_dma);
383 ao_radio_rssi = AO_RSSI_FROM_RADIO(((uint8_t *)packet)[size - 2]);
386 return ao_radio_dma_done;
390 * Wake up a task waiting to receive a radio packet
391 * and tell them to abort the transfer
395 ao_radio_recv_abort(void)
398 ao_wakeup(&ao_radio_dma_done);
401 __code ao_radio_rdf_value = 0x55;
404 ao_radio_rdf_start(void)
408 ao_radio_get(AO_RADIO_RDF_LEN);
410 for (i = 0; i < sizeof (rdf_setup); i += 2)
411 RF[rdf_setup[i]] = rdf_setup[i+1];
415 ao_radio_rdf_run(void)
417 ao_dma_start(ao_radio_dma);
419 __critical while (!ao_radio_done && !ao_radio_abort)
420 ao_sleep(&ao_radio_done);
421 if (!ao_radio_done) {
422 ao_dma_abort(ao_radio_dma);
425 ao_radio_set_packet();
432 ao_radio_rdf_start();
434 ao_dma_set_transfer(ao_radio_dma,
435 CODE_TO_XDATA(&ao_radio_rdf_value),
438 DMA_CFG0_WORDSIZE_8 |
439 DMA_CFG0_TMODE_SINGLE |
440 DMA_CFG0_TRIGGER_RADIO,
443 DMA_CFG1_PRIORITY_HIGH);
450 #define CONT_PAUSE_8 PA, PA, PA, PA, PA, PA, PA, PA
451 #define CONT_PAUSE_16 CONT_PAUSE_8, CONT_PAUSE_8
452 #define CONT_PAUSE_24 CONT_PAUSE_16, CONT_PAUSE_8
454 #define CONT_BEEP_8 BE, BE, BE, BE, BE, BE, BE, BE
456 #if AO_RADIO_CONT_PAUSE_LEN == 24
457 #define CONT_PAUSE CONT_PAUSE_24
460 #if AO_RADIO_CONT_TONE_LEN == 8
461 #define CONT_BEEP CONT_BEEP_8
462 #define CONT_PAUSE_SHORT CONT_PAUSE_8
465 #define CONT_ADDR(c) CODE_TO_XDATA(&ao_radio_cont[(3-(c)) * (AO_RADIO_CONT_PAUSE_LEN + AO_RADIO_CONT_TONE_LEN)])
467 __code uint8_t ao_radio_cont[] = {
468 CONT_PAUSE, CONT_BEEP,
469 CONT_PAUSE, CONT_BEEP,
470 CONT_PAUSE, CONT_BEEP,
471 CONT_PAUSE, CONT_PAUSE_SHORT,
472 CONT_PAUSE, CONT_PAUSE_SHORT,
477 ao_radio_continuity(uint8_t c)
479 ao_radio_rdf_start();
480 ao_dma_set_transfer(ao_radio_dma,
483 AO_RADIO_CONT_TOTAL_LEN,
484 DMA_CFG0_WORDSIZE_8 |
485 DMA_CFG0_TMODE_SINGLE |
486 DMA_CFG0_TRIGGER_RADIO,
489 DMA_CFG1_PRIORITY_HIGH);
494 ao_radio_rdf_abort(void)
497 ao_wakeup(&ao_radio_done);
503 static __xdata ao_radio_test_on;
506 ao_radio_test(uint8_t on)
509 if (!ao_radio_test_on) {
511 ao_monitor_disable();
514 ao_packet_slave_stop();
521 ao_radio_test_on = 1;
524 if (ao_radio_test_on) {
527 ao_radio_test_on = 0;
539 ao_radio_test_cmd(void)
542 static __xdata radio_on;
544 if (ao_cmd_lex_c != '\n') {
546 mode = (uint8_t) ao_cmd_lex_u32;
552 printf ("Hit a character to stop..."); flush();
560 #if AO_RADIO_REG_TEST
562 ao_radio_set_reg(void)
566 offset = ao_cmd_lex_i;
567 if (ao_cmd_status != ao_cmd_success)
570 printf("RF[%x] %x", offset, RF[offset]);
571 if (ao_cmd_status == ao_cmd_success) {
572 RF[offset] = ao_cmd_lex_i;
573 printf (" -> %x", RF[offset]);
575 ao_cmd_status = ao_cmd_success;
580 __code struct ao_cmds ao_radio_cmds[] = {
581 { ao_radio_test_cmd, "C <1 start, 0 stop, none both>\0Radio carrier test" },
582 #if AO_RADIO_REG_TEST
583 { ao_radio_set_reg, "V <offset> <value>\0Set radio register" },
592 for (i = 0; i < sizeof (radio_setup); i += 2)
593 RF[radio_setup[i]] = radio_setup[i+1];
594 ao_radio_set_packet();
595 ao_radio_dma_done = 1;
596 ao_radio_dma = ao_dma_alloc(&ao_radio_dma_done);
598 RFIM = RFIM_IM_TIMEOUT|RFIM_IM_DONE;
600 ao_cmd_register(&ao_radio_cmds[0]);