JunMo Hong / stm-spirit1-rf-driver_for_cubebite2

180718 HJM : 8 Count sensing data RF send, certTest, temp(cold)Test

Fork of EV-COG-AD3029LZ by JunMo Hong

source/SimpleSpirit1.cpp@69:22e9b407effa, 2017-07-10 (annotated)

Committer:
Wolfgang Betz
Date:
Mon Jul 10 13:54:43 2017 +0200
Revision:
69:22e9b407effa
Parent:
68:247fd6e0ab66
Child:
70:19b5f9b9ba80
Better handling of race condition around `_spirit_tx_started`

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Wolfgang Betz 34:edda6a7238ec 1 /*** Mbed Includes ***/
Wolfgang Betz 34:edda6a7238ec 2 #include "SimpleSpirit1.h"
Wolfgang Betz 34:edda6a7238ec 3 #include "radio_spi.h"
Wolfgang Betz 34:edda6a7238ec 4
Wolfgang Betz 34:edda6a7238ec 5 #define SPIRIT_GPIO_IRQ (SPIRIT_GPIO_3)
Wolfgang Betz 34:edda6a7238ec 6
Wolfgang Betz 34:edda6a7238ec 7 static uint16_t last_state;
Wolfgang Betz 34:edda6a7238ec 8 #define SPIRIT1_STATUS() ((last_state = (uint16_t)refresh_state()) & SPIRIT1_STATE_STATEBITS)
Wolfgang Betz 34:edda6a7238ec 9
Wolfgang Betz 34:edda6a7238ec 10 #define XO_ON (0x1)
Wolfgang Betz 34:edda6a7238ec 11
Wolfgang Betz 34:edda6a7238ec 12 #define BUSYWAIT_UNTIL(cond, millisecs) \
Wolfgang Betz 69:22e9b407effa 13 do { \
Wolfgang Betz 69:22e9b407effa 14 uint32_t start = us_ticker_read(); \
Wolfgang Betz 69:22e9b407effa 15 while (!(cond) && ((us_ticker_read() - start) < ((uint32_t)millisecs)*1000U)); \
Wolfgang Betz 69:22e9b407effa 16 } while(0)
Wolfgang Betz 34:edda6a7238ec 17
Wolfgang Betz 34:edda6a7238ec 18 #define st_lib_spirit_irqs SpiritIrqs
Wolfgang Betz 34:edda6a7238ec 19
Wolfgang Betz 37:bc043030b55a 20 #define STATE_TIMEOUT (100)
Wolfgang Betz 34:edda6a7238ec 21
Wolfgang Betz 34:edda6a7238ec 22 // betzw: switching force & back from standby is on some devices quite unstable
Wolfgang Betz 34:edda6a7238ec 23 #define USE_STANDBY_STATE
Wolfgang Betz 34:edda6a7238ec 24
Wolfgang Betz 34:edda6a7238ec 25 /*** Class Implementation ***/
Wolfgang Betz 34:edda6a7238ec 26 /** Static Class Variables **/
Wolfgang Betz 34:edda6a7238ec 27 SimpleSpirit1 *SimpleSpirit1::_singleton = NULL;
Wolfgang Betz 34:edda6a7238ec 28
Wolfgang Betz 34:edda6a7238ec 29 /** Constructor **/
Wolfgang Betz 34:edda6a7238ec 30 SimpleSpirit1::SimpleSpirit1(PinName mosi, PinName miso, PinName sclk,
Wolfgang Betz 69:22e9b407effa 31 PinName irq, PinName cs, PinName sdn,
Wolfgang Betz 69:22e9b407effa 32 PinName led) :
Wolfgang Betz 69:22e9b407effa 33 _spi(mosi, miso, sclk),
Wolfgang Betz 69:22e9b407effa 34 _irq(irq),
Wolfgang Betz 69:22e9b407effa 35 _chip_select(cs),
Wolfgang Betz 69:22e9b407effa 36 _shut_down(sdn),
Wolfgang Betz 69:22e9b407effa 37 _led(led),
Wolfgang Betz 69:22e9b407effa 38 _current_irq_callback(),
Wolfgang Betz 69:22e9b407effa 39 _rx_receiving_timeout()
Wolfgang Betz 34:edda6a7238ec 40 {
Wolfgang Betz 34:edda6a7238ec 41 }
Wolfgang Betz 34:edda6a7238ec 42
Wolfgang Betz 34:edda6a7238ec 43 /** Init Function **/
Wolfgang Betz 34:edda6a7238ec 44 void SimpleSpirit1::init() {
Wolfgang Betz 69:22e9b407effa 45 /* reset irq disable counter and irq callback & disable irq */
Wolfgang Betz 69:22e9b407effa 46 _nr_of_irq_disables = 0;
Wolfgang Betz 69:22e9b407effa 47 disable_spirit_irq();
Wolfgang Betz 34:edda6a7238ec 48
Wolfgang Betz 69:22e9b407effa 49 /* unselect chip */
Wolfgang Betz 69:22e9b407effa 50 chip_unselect();
Wolfgang Betz 34:edda6a7238ec 51
Wolfgang Betz 69:22e9b407effa 52 /* configure spi */
Wolfgang Betz 69:22e9b407effa 53 _spi.format(8, 0); /* 8-bit, mode = 0, [order = SPI_MSB] only available in mbed3 */
Wolfgang Betz 69:22e9b407effa 54 _spi.frequency(10000000); // 10MHz (i.e. max speed allowed for Spirit1)
Wolfgang Betz 34:edda6a7238ec 55
Wolfgang Betz 69:22e9b407effa 56 /* install irq handler */
Wolfgang Betz 69:22e9b407effa 57 _irq.mode(PullUp);
Wolfgang Betz 69:22e9b407effa 58 _irq.fall(Callback<void()>(this, &SimpleSpirit1::IrqHandler));
Wolfgang Betz 34:edda6a7238ec 59
Wolfgang Betz 69:22e9b407effa 60 /* init cube vars */
Wolfgang Betz 69:22e9b407effa 61 spirit_on = OFF;
Wolfgang Betz 69:22e9b407effa 62 last_rssi = 0 ; //MGR
Wolfgang Betz 69:22e9b407effa 63 last_sqi = 0 ; //MGR
Wolfgang Betz 34:edda6a7238ec 64
Wolfgang Betz 69:22e9b407effa 65 /* set frequencies */
Wolfgang Betz 69:22e9b407effa 66 radio_set_xtal_freq(XTAL_FREQUENCY);
Wolfgang Betz 69:22e9b407effa 67 mgmt_set_freq_base((uint32_t)BASE_FREQUENCY);
Wolfgang Betz 34:edda6a7238ec 68
Wolfgang Betz 69:22e9b407effa 69 /* restart board */
Wolfgang Betz 69:22e9b407effa 70 enter_shutdown();
Wolfgang Betz 69:22e9b407effa 71 exit_shutdown();
Wolfgang Betz 34:edda6a7238ec 72
Wolfgang Betz 69:22e9b407effa 73 /* soft core reset */
Wolfgang Betz 69:22e9b407effa 74 cmd_strobe(SPIRIT1_STROBE_SRES);
Wolfgang Betz 34:edda6a7238ec 75
Wolfgang Betz 69:22e9b407effa 76 /* Configures the SPIRIT1 radio part */
Wolfgang Betz 69:22e9b407effa 77 SRadioInit x_radio_init = {
Wolfgang Betz 69:22e9b407effa 78 XTAL_OFFSET_PPM,
Wolfgang Betz 69:22e9b407effa 79 (uint32_t)BASE_FREQUENCY,
Wolfgang Betz 69:22e9b407effa 80 (uint32_t)CHANNEL_SPACE,
Wolfgang Betz 69:22e9b407effa 81 CHANNEL_NUMBER,
Wolfgang Betz 69:22e9b407effa 82 MODULATION_SELECT,
Wolfgang Betz 69:22e9b407effa 83 DATARATE,
Wolfgang Betz 69:22e9b407effa 84 (uint32_t)FREQ_DEVIATION,
Wolfgang Betz 69:22e9b407effa 85 (uint32_t)BANDWIDTH
Wolfgang Betz 69:22e9b407effa 86 };
Wolfgang Betz 69:22e9b407effa 87 radio_init(&x_radio_init);
Wolfgang Betz 69:22e9b407effa 88 radio_set_pa_level_dbm(0,POWER_DBM);
Wolfgang Betz 69:22e9b407effa 89 radio_set_pa_level_max_index(0);
Wolfgang Betz 34:edda6a7238ec 90
Wolfgang Betz 69:22e9b407effa 91 /* Configures the SPIRIT1 packet handler part*/
Wolfgang Betz 69:22e9b407effa 92 PktBasicInit x_basic_init = {
Wolfgang Betz 69:22e9b407effa 93 PREAMBLE_LENGTH,
Wolfgang Betz 69:22e9b407effa 94 SYNC_LENGTH,
Wolfgang Betz 69:22e9b407effa 95 SYNC_WORD,
Wolfgang Betz 69:22e9b407effa 96 LENGTH_TYPE,
Wolfgang Betz 69:22e9b407effa 97 LENGTH_WIDTH,
Wolfgang Betz 69:22e9b407effa 98 CRC_MODE,
Wolfgang Betz 69:22e9b407effa 99 CONTROL_LENGTH,
Wolfgang Betz 69:22e9b407effa 100 EN_ADDRESS,
Wolfgang Betz 69:22e9b407effa 101 EN_FEC,
Wolfgang Betz 69:22e9b407effa 102 EN_WHITENING
Wolfgang Betz 69:22e9b407effa 103 };
Wolfgang Betz 69:22e9b407effa 104 pkt_basic_init(&x_basic_init);
Wolfgang Betz 34:edda6a7238ec 105
Wolfgang Betz 69:22e9b407effa 106 /* Enable the following interrupt sources, routed to GPIO */
Wolfgang Betz 69:22e9b407effa 107 irq_de_init(NULL);
Wolfgang Betz 69:22e9b407effa 108 irq_clear_status();
Wolfgang Betz 69:22e9b407effa 109 irq_set_status(TX_DATA_SENT, S_ENABLE);
Wolfgang Betz 69:22e9b407effa 110 irq_set_status(RX_DATA_READY,S_ENABLE);
Wolfgang Betz 69:22e9b407effa 111 irq_set_status(RX_DATA_DISC, S_ENABLE);
Wolfgang Betz 69:22e9b407effa 112 irq_set_status(VALID_SYNC, S_ENABLE);
Wolfgang Betz 69:22e9b407effa 113 irq_set_status(TX_FIFO_ERROR, S_ENABLE);
Wolfgang Betz 69:22e9b407effa 114 irq_set_status(RX_FIFO_ERROR, S_ENABLE);
Wolfgang Betz 47:3a30b960a8c2 115 #ifndef RX_FIFO_THR_WA
Wolfgang Betz 69:22e9b407effa 116 irq_set_status(TX_FIFO_ALMOST_EMPTY, S_ENABLE);
Wolfgang Betz 69:22e9b407effa 117 irq_set_status(RX_FIFO_ALMOST_FULL, S_ENABLE);
Wolfgang Betz 47:3a30b960a8c2 118 #endif // !RX_FIFO_THR_WA
Wolfgang Betz 34:edda6a7238ec 119
Wolfgang Betz 69:22e9b407effa 120 /* Configure Spirit1 */
Wolfgang Betz 69:22e9b407effa 121 radio_persistent_rx(S_ENABLE);
Wolfgang Betz 69:22e9b407effa 122 qi_set_sqi_threshold(SQI_TH_0);
Wolfgang Betz 69:22e9b407effa 123 qi_sqi_check(S_ENABLE);
Wolfgang Betz 69:22e9b407effa 124 qi_set_rssi_threshold_dbm(CCA_THRESHOLD);
Wolfgang Betz 69:22e9b407effa 125 timer_set_rx_timeout_stop_condition(SQI_ABOVE_THRESHOLD);
Wolfgang Betz 69:22e9b407effa 126 timer_set_infinite_rx_timeout();
Wolfgang Betz 69:22e9b407effa 127 radio_afc_freeze_on_sync(S_ENABLE);
Wolfgang Betz 69:22e9b407effa 128 calibration_rco(S_ENABLE);
Wolfgang Betz 34:edda6a7238ec 129
Wolfgang Betz 69:22e9b407effa 130 spirit_on = OFF;
Wolfgang Betz 69:22e9b407effa 131 CLEAR_TXBUF();
Wolfgang Betz 69:22e9b407effa 132 CLEAR_RXBUF();
Wolfgang Betz 69:22e9b407effa 133 _spirit_tx_started = false;
Wolfgang Betz 69:22e9b407effa 134 _is_receiving = false;
Wolfgang Betz 34:edda6a7238ec 135
Wolfgang Betz 69:22e9b407effa 136 /* Configure the radio to route the IRQ signal to its GPIO 3 */
Wolfgang Betz 69:22e9b407effa 137 SGpioInit x_gpio_init = {
Wolfgang Betz 69:22e9b407effa 138 SPIRIT_GPIO_IRQ,
Wolfgang Betz 69:22e9b407effa 139 SPIRIT_GPIO_MODE_DIGITAL_OUTPUT_LP,
Wolfgang Betz 69:22e9b407effa 140 SPIRIT_GPIO_DIG_OUT_IRQ
Wolfgang Betz 69:22e9b407effa 141 };
Wolfgang Betz 69:22e9b407effa 142 spirit_gpio_init(&x_gpio_init);
Wolfgang Betz 34:edda6a7238ec 143
Wolfgang Betz 69:22e9b407effa 144 /* Setup CSMA/CA */
Wolfgang Betz 69:22e9b407effa 145 CsmaInit x_csma_init = {
Wolfgang Betz 69:22e9b407effa 146 S_ENABLE, // enable persistent mode
Wolfgang Betz 69:22e9b407effa 147 TBIT_TIME_64, // Tcca time
Wolfgang Betz 69:22e9b407effa 148 TCCA_TIME_3, // Lcca length
Wolfgang Betz 69:22e9b407effa 149 5, // max nr of backoffs (<8)
Wolfgang Betz 69:22e9b407effa 150 1, // BU counter seed
Wolfgang Betz 69:22e9b407effa 151 8 // BU prescaler
Wolfgang Betz 69:22e9b407effa 152 };
Wolfgang Betz 69:22e9b407effa 153 csma_ca_init(&x_csma_init);
Wolfgang Betz 34:edda6a7238ec 154
Wolfgang Betz 34:edda6a7238ec 155 #ifdef USE_STANDBY_STATE
Wolfgang Betz 69:22e9b407effa 156 /* Puts the SPIRIT1 in STANDBY mode (125us -> rx/tx) */
Wolfgang Betz 69:22e9b407effa 157 cmd_strobe(SPIRIT1_STROBE_STANDBY);
Wolfgang Betz 34:edda6a7238ec 158 #endif // USE_STANDBY_STATE
Wolfgang Betz 34:edda6a7238ec 159 }
Wolfgang Betz 34:edda6a7238ec 160
Wolfgang Betz 69:22e9b407effa 161 static volatile int tx_fifo_remaining = 0; // to be used in irq handler
Wolfgang Betz 69:22e9b407effa 162 static volatile int tx_buffer_pos = 0; // to be used in irq handler
Wolfgang Betz 69:22e9b407effa 163 static const volatile uint8_t *tx_fifo_buffer = NULL; // to be used in irq handler
Wolfgang Betz 64:28ef790e4ef7 164 int SimpleSpirit1::send(const void *payload, unsigned int payload_len, bool use_csma_ca) {
Wolfgang Betz 69:22e9b407effa 165 /* Checks if the payload length is supported */
Wolfgang Betz 69:22e9b407effa 166 if(payload_len > MAX_PACKET_LEN) {
Wolfgang Betz 69:22e9b407effa 167 return RADIO_TX_ERR;
Wolfgang Betz 69:22e9b407effa 168 }
Wolfgang Betz 34:edda6a7238ec 169
Wolfgang Betz 69:22e9b407effa 170 disable_spirit_irq();
Wolfgang Betz 34:edda6a7238ec 171
Wolfgang Betz 69:22e9b407effa 172 BUSYWAIT_UNTIL(SPIRIT1_STATUS() == SPIRIT1_STATE_RX, STATE_TIMEOUT);
Wolfgang Betz 34:edda6a7238ec 173 #ifndef NDEBUG
Wolfgang Betz 69:22e9b407effa 174 if((last_state & SPIRIT1_STATE_STATEBITS) != SPIRIT1_STATE_RX) {
Wolfgang Betz 69:22e9b407effa 175 debug("\r\nAssert failed in: %s (%d): state=%x\r\n", __func__, __LINE__, last_state>>1);
Wolfgang Betz 69:22e9b407effa 176 }
Wolfgang Betz 34:edda6a7238ec 177 #endif
Wolfgang Betz 34:edda6a7238ec 178
Wolfgang Betz 69:22e9b407effa 179 /* Reset State to Ready */
Wolfgang Betz 69:22e9b407effa 180 set_ready_state();
Wolfgang Betz 34:edda6a7238ec 181
Wolfgang Betz 69:22e9b407effa 182 cmd_strobe(SPIRIT1_STROBE_FTX); // flush TX FIFO buffer
Wolfgang Betz 34:edda6a7238ec 183
Wolfgang Betz 34:edda6a7238ec 184 #ifndef NDEBUG
Wolfgang Betz 69:22e9b407effa 185 debug_if(!(linear_fifo_read_num_elements_tx_fifo() == 0), "\r\nAssert failed in: %s (%d)\r\n", __func__, __LINE__);
Wolfgang Betz 34:edda6a7238ec 186 #endif
Wolfgang Betz 34:edda6a7238ec 187
Wolfgang Betz 69:22e9b407effa 188 pkt_basic_set_payload_length(payload_len); // set desired payload len
Wolfgang Betz 34:edda6a7238ec 189
Wolfgang Betz 69:22e9b407effa 190 if(use_csma_ca) {
Wolfgang Betz 69:22e9b407effa 191 csma_ca_state(S_ENABLE); // enable CSMA/CA
Wolfgang Betz 69:22e9b407effa 192 }
Wolfgang Betz 34:edda6a7238ec 193
Wolfgang Betz 69:22e9b407effa 194 /* Init buffer & number of bytes to be send */
Wolfgang Betz 69:22e9b407effa 195 tx_fifo_remaining = payload_len;
Wolfgang Betz 69:22e9b407effa 196 tx_fifo_buffer = (const uint8_t*)payload;
Wolfgang Betz 45:2d01cc9bc761 197
Wolfgang Betz 69:22e9b407effa 198 int8_t fifo_available = SPIRIT_MAX_FIFO_LEN; // fill-up whole fifo
Wolfgang Betz 69:22e9b407effa 199 int8_t to_send = (tx_fifo_remaining > fifo_available) ? fifo_available : tx_fifo_remaining;
Wolfgang Betz 34:edda6a7238ec 200
Wolfgang Betz 69:22e9b407effa 201 tx_fifo_remaining -= to_send;
Wolfgang Betz 34:edda6a7238ec 202
Wolfgang Betz 69:22e9b407effa 203 /* Fill FIFO Buffer */
Wolfgang Betz 69:22e9b407effa 204 if(to_send > 0) {
Wolfgang Betz 69:22e9b407effa 205 spi_write_linear_fifo(to_send, (uint8_t*)&tx_fifo_buffer[0]);
Wolfgang Betz 69:22e9b407effa 206 }
Wolfgang Betz 34:edda6a7238ec 207
Wolfgang Betz 69:22e9b407effa 208 tx_buffer_pos = to_send;
Wolfgang Betz 69:22e9b407effa 209 _spirit_tx_started = true;
Wolfgang Betz 34:edda6a7238ec 210
Wolfgang Betz 69:22e9b407effa 211 enable_spirit_irq();
Wolfgang Betz 34:edda6a7238ec 212
Wolfgang Betz 69:22e9b407effa 213 /* Start transmitting */
Wolfgang Betz 69:22e9b407effa 214 cmd_strobe(SPIRIT1_STROBE_TX);
Wolfgang Betz 45:2d01cc9bc761 215
Wolfgang Betz 69:22e9b407effa 216 while(tx_fifo_remaining != 0); // wait until not everything is yet send (evtl. by irq handler)
Wolfgang Betz 45:2d01cc9bc761 217
Wolfgang Betz 69:22e9b407effa 218 BUSYWAIT_UNTIL(!_spirit_tx_started, STATE_TIMEOUT);
Wolfgang Betz 34:edda6a7238ec 219 #ifdef HEAVY_DEBUG
Wolfgang Betz 69:22e9b407effa 220 debug("\r\n%s (%d): state=%x, _spirit_tx_started=%d\r\n", __func__, __LINE__, SPIRIT1_STATUS()>>1, _spirit_tx_started);
Wolfgang Betz 34:edda6a7238ec 221 #endif
Wolfgang Betz 34:edda6a7238ec 222
Wolfgang Betz 64:28ef790e4ef7 223 if(use_csma_ca) {
Wolfgang Betz 64:28ef790e4ef7 224 csma_ca_state(S_DISABLE); // disable CSMA/CA
Wolfgang Betz 64:28ef790e4ef7 225 }
Wolfgang Betz 43:a512f909514a 226
Wolfgang Betz 69:22e9b407effa 227 cmd_strobe(SPIRIT1_STROBE_RX); // Return to RX state
Wolfgang Betz 34:edda6a7238ec 228
Wolfgang Betz 69:22e9b407effa 229 disable_spirit_irq();
Wolfgang Betz 69:22e9b407effa 230 if(_spirit_tx_started) { // in case of state timeout
Wolfgang Betz 69:22e9b407effa 231 _spirit_tx_started = false;
Wolfgang Betz 69:22e9b407effa 232 enable_spirit_irq();
Wolfgang Betz 69:22e9b407effa 233 return RADIO_TX_ERR;
Wolfgang Betz 69:22e9b407effa 234 } else {
Wolfgang Betz 69:22e9b407effa 235 enable_spirit_irq();
Wolfgang Betz 69:22e9b407effa 236 return RADIO_TX_OK;
Wolfgang Betz 69:22e9b407effa 237 }
Wolfgang Betz 34:edda6a7238ec 238 }
Wolfgang Betz 34:edda6a7238ec 239
Wolfgang Betz 34:edda6a7238ec 240 /** Set Ready State **/
Wolfgang Betz 34:edda6a7238ec 241 void SimpleSpirit1::set_ready_state(void) {
Wolfgang Betz 69:22e9b407effa 242 uint16_t state;
Wolfgang Betz 34:edda6a7238ec 243
Wolfgang Betz 69:22e9b407effa 244 disable_spirit_irq();
Wolfgang Betz 34:edda6a7238ec 245
Wolfgang Betz 69:22e9b407effa 246 _spirit_tx_started = false;
Wolfgang Betz 69:22e9b407effa 247 _is_receiving = false;
Wolfgang Betz 69:22e9b407effa 248 stop_rx_timeout();
Wolfgang Betz 34:edda6a7238ec 249
Wolfgang Betz 69:22e9b407effa 250 cmd_strobe(SPIRIT1_STROBE_FRX);
Wolfgang Betz 69:22e9b407effa 251 CLEAR_RXBUF();
Wolfgang Betz 69:22e9b407effa 252 CLEAR_TXBUF();
Wolfgang Betz 34:edda6a7238ec 253
Wolfgang Betz 69:22e9b407effa 254 state = SPIRIT1_STATUS();
Wolfgang Betz 69:22e9b407effa 255 if(state == SPIRIT1_STATE_STANDBY) {
Wolfgang Betz 69:22e9b407effa 256 cmd_strobe(SPIRIT1_STROBE_READY);
Wolfgang Betz 69:22e9b407effa 257 } else if(state == SPIRIT1_STATE_RX) {
Wolfgang Betz 69:22e9b407effa 258 cmd_strobe(SPIRIT1_STROBE_SABORT);
Wolfgang Betz 69:22e9b407effa 259 } else if(state != SPIRIT1_STATE_READY) {
Wolfgang Betz 34:edda6a7238ec 260 #ifndef NDEBUG
Wolfgang Betz 69:22e9b407effa 261 debug("\r\nAssert failed in: %s (%d): state=%x\r\n", __func__, __LINE__, state>>1);
Wolfgang Betz 34:edda6a7238ec 262 #endif
Wolfgang Betz 69:22e9b407effa 263 }
Wolfgang Betz 34:edda6a7238ec 264
Wolfgang Betz 69:22e9b407effa 265 BUSYWAIT_UNTIL((SPIRIT1_STATUS() == SPIRIT1_STATE_READY) && ((last_state & XO_ON) == XO_ON), STATE_TIMEOUT);
Wolfgang Betz 69:22e9b407effa 266 if(last_state != (SPIRIT1_STATE_READY | XO_ON)) {
Wolfgang Betz 69:22e9b407effa 267 error("\r\nSpirit1: failed to become ready (%x) => pls. reset!\r\n", last_state);
Wolfgang Betz 69:22e9b407effa 268 enable_spirit_irq();
Wolfgang Betz 69:22e9b407effa 269 return;
Wolfgang Betz 69:22e9b407effa 270 }
Wolfgang Betz 34:edda6a7238ec 271
Wolfgang Betz 69:22e9b407effa 272 irq_clear_status();
Wolfgang Betz 34:edda6a7238ec 273
Wolfgang Betz 69:22e9b407effa 274 enable_spirit_irq();
Wolfgang Betz 34:edda6a7238ec 275 }
Wolfgang Betz 34:edda6a7238ec 276
Wolfgang Betz 34:edda6a7238ec 277 int SimpleSpirit1::off(void) {
Wolfgang Betz 69:22e9b407effa 278 if(spirit_on == ON) {
Wolfgang Betz 69:22e9b407effa 279 /* Disables the mcu to get IRQ from the SPIRIT1 */
Wolfgang Betz 69:22e9b407effa 280 disable_spirit_irq();
Wolfgang Betz 34:edda6a7238ec 281
Wolfgang Betz 69:22e9b407effa 282 /* first stop rx/tx */
Wolfgang Betz 69:22e9b407effa 283 set_ready_state();
Wolfgang Betz 34:edda6a7238ec 284
Wolfgang Betz 34:edda6a7238ec 285 #ifdef USE_STANDBY_STATE
Wolfgang Betz 69:22e9b407effa 286 /* Puts the SPIRIT1 in STANDBY */
Wolfgang Betz 69:22e9b407effa 287 cmd_strobe(SPIRIT1_STROBE_STANDBY);
Wolfgang Betz 69:22e9b407effa 288 BUSYWAIT_UNTIL(SPIRIT1_STATUS() == SPIRIT1_STATE_STANDBY, STATE_TIMEOUT);
Wolfgang Betz 69:22e9b407effa 289 if((last_state & SPIRIT1_STATE_STATEBITS) != SPIRIT1_STATE_STANDBY) {
Wolfgang Betz 69:22e9b407effa 290 error("\r\nSpirit1: failed to enter standby (%x)\r\n", last_state>>1);
Wolfgang Betz 69:22e9b407effa 291 return 1;
Wolfgang Betz 69:22e9b407effa 292 }
Wolfgang Betz 34:edda6a7238ec 293 #endif // USE_STANDBY_STATE
Wolfgang Betz 34:edda6a7238ec 294
Wolfgang Betz 69:22e9b407effa 295 spirit_on = OFF;
Wolfgang Betz 69:22e9b407effa 296 _nr_of_irq_disables = 1;
Wolfgang Betz 69:22e9b407effa 297 }
Wolfgang Betz 69:22e9b407effa 298 return 0;
Wolfgang Betz 34:edda6a7238ec 299 }
Wolfgang Betz 34:edda6a7238ec 300
Wolfgang Betz 34:edda6a7238ec 301 int SimpleSpirit1::on(void) {
Wolfgang Betz 69:22e9b407effa 302 if(spirit_on == OFF) {
Wolfgang Betz 69:22e9b407effa 303 set_ready_state();
Wolfgang Betz 34:edda6a7238ec 304
Wolfgang Betz 69:22e9b407effa 305 /* now we go to Rx */
Wolfgang Betz 69:22e9b407effa 306 cmd_strobe(SPIRIT1_STROBE_RX);
Wolfgang Betz 34:edda6a7238ec 307
Wolfgang Betz 69:22e9b407effa 308 BUSYWAIT_UNTIL(SPIRIT1_STATUS() == SPIRIT1_STATE_RX, STATE_TIMEOUT);
Wolfgang Betz 69:22e9b407effa 309 if((last_state & SPIRIT1_STATE_STATEBITS) != SPIRIT1_STATE_RX) {
Wolfgang Betz 69:22e9b407effa 310 error("\r\nSpirit1: failed to enter rx (%x) => retry\r\n", last_state>>1);
Wolfgang Betz 69:22e9b407effa 311 }
Wolfgang Betz 34:edda6a7238ec 312
Wolfgang Betz 69:22e9b407effa 313 /* Enables the mcu to get IRQ from the SPIRIT1 */
Wolfgang Betz 69:22e9b407effa 314 spirit_on = ON;
Wolfgang Betz 34:edda6a7238ec 315 #ifndef NDEBUG
Wolfgang Betz 69:22e9b407effa 316 debug_if(!(_nr_of_irq_disables == 1), "\r\nAssert failed in: %s (%d)\r\n", __func__, __LINE__);
Wolfgang Betz 34:edda6a7238ec 317 #endif
Wolfgang Betz 69:22e9b407effa 318 enable_spirit_irq();
Wolfgang Betz 69:22e9b407effa 319 }
Wolfgang Betz 34:edda6a7238ec 320
Wolfgang Betz 34:edda6a7238ec 321 #ifndef NDEBUG
Wolfgang Betz 69:22e9b407effa 322 if(SPIRIT1_STATUS() != SPIRIT1_STATE_RX) {
Wolfgang Betz 69:22e9b407effa 323 debug("\r\nAssert failed in: %s (%d): state=%x\r\n", __func__, __LINE__, last_state>>1);
Wolfgang Betz 69:22e9b407effa 324 }
Wolfgang Betz 34:edda6a7238ec 325 #endif
Wolfgang Betz 34:edda6a7238ec 326
Wolfgang Betz 69:22e9b407effa 327 return 0;
Wolfgang Betz 34:edda6a7238ec 328 }
Wolfgang Betz 34:edda6a7238ec 329
Wolfgang Betz 34:edda6a7238ec 330 uint8_t SimpleSpirit1::refresh_state(void) {
Wolfgang Betz 69:22e9b407effa 331 uint8_t mcstate;
Wolfgang Betz 34:edda6a7238ec 332
Wolfgang Betz 69:22e9b407effa 333 SpiritSpiReadRegisters(MC_STATE0_BASE, 1, &mcstate);
Wolfgang Betz 34:edda6a7238ec 334
Wolfgang Betz 69:22e9b407effa 335 return mcstate;
Wolfgang Betz 34:edda6a7238ec 336 }
Wolfgang Betz 34:edda6a7238ec 337
Wolfgang Betz 34:edda6a7238ec 338 int SimpleSpirit1::read(void *buf, unsigned int bufsize)
Wolfgang Betz 34:edda6a7238ec 339 {
Wolfgang Betz 69:22e9b407effa 340 disable_spirit_irq();
Wolfgang Betz 34:edda6a7238ec 341
Wolfgang Betz 69:22e9b407effa 342 /* Checks if the RX buffer is empty */
Wolfgang Betz 69:22e9b407effa 343 if(IS_RXBUF_EMPTY()) {
Wolfgang Betz 43:a512f909514a 344 #ifndef NDEBUG
Wolfgang Betz 69:22e9b407effa 345 debug("\r\nBuffer is empty\r\n");
Wolfgang Betz 43:a512f909514a 346 #endif
Wolfgang Betz 69:22e9b407effa 347 set_ready_state();
Wolfgang Betz 34:edda6a7238ec 348
Wolfgang Betz 69:22e9b407effa 349 cmd_strobe(SPIRIT1_STROBE_RX);
Wolfgang Betz 69:22e9b407effa 350 BUSYWAIT_UNTIL(SPIRIT1_STATUS() == SPIRIT1_STATE_RX, STATE_TIMEOUT);
Wolfgang Betz 69:22e9b407effa 351 enable_spirit_irq();
Wolfgang Betz 69:22e9b407effa 352 return 0;
Wolfgang Betz 69:22e9b407effa 353 }
Wolfgang Betz 34:edda6a7238ec 354
Wolfgang Betz 69:22e9b407effa 355 if(bufsize < spirit_rx_len) {
Wolfgang Betz 69:22e9b407effa 356 enable_spirit_irq();
Wolfgang Betz 34:edda6a7238ec 357
Wolfgang Betz 69:22e9b407effa 358 /* If buf has the correct size */
Wolfgang Betz 34:edda6a7238ec 359 #ifndef NDEBUG
Wolfgang Betz 69:22e9b407effa 360 debug("\r\nTOO SMALL BUF\r\n");
Wolfgang Betz 34:edda6a7238ec 361 #endif
Wolfgang Betz 69:22e9b407effa 362 return 0;
Wolfgang Betz 69:22e9b407effa 363 } else {
Wolfgang Betz 69:22e9b407effa 364 /* Copies the packet received */
Wolfgang Betz 69:22e9b407effa 365 memcpy(buf, spirit_rx_buf, spirit_rx_len);
Wolfgang Betz 34:edda6a7238ec 366
Wolfgang Betz 69:22e9b407effa 367 bufsize = spirit_rx_len;
Wolfgang Betz 69:22e9b407effa 368 CLEAR_RXBUF();
Wolfgang Betz 34:edda6a7238ec 369
Wolfgang Betz 69:22e9b407effa 370 enable_spirit_irq();
Wolfgang Betz 34:edda6a7238ec 371
Wolfgang Betz 69:22e9b407effa 372 return bufsize;
Wolfgang Betz 69:22e9b407effa 373 }
Wolfgang Betz 34:edda6a7238ec 374
Wolfgang Betz 34:edda6a7238ec 375 }
Wolfgang Betz 34:edda6a7238ec 376
Wolfgang Betz 34:edda6a7238ec 377 int SimpleSpirit1::channel_clear(void)
Wolfgang Betz 34:edda6a7238ec 378 {
Wolfgang Betz 69:22e9b407effa 379 float rssi_value;
Wolfgang Betz 69:22e9b407effa 380 /* Local variable used to memorize the SPIRIT1 state */
Wolfgang Betz 69:22e9b407effa 381 uint8_t spirit_state = ON;
Wolfgang Betz 34:edda6a7238ec 382
Wolfgang Betz 69:22e9b407effa 383 if(spirit_on == OFF) {
Wolfgang Betz 69:22e9b407effa 384 /* Wakes up the SPIRIT1 */
Wolfgang Betz 69:22e9b407effa 385 on();
Wolfgang Betz 69:22e9b407effa 386 spirit_state = OFF;
Wolfgang Betz 69:22e9b407effa 387 }
Wolfgang Betz 34:edda6a7238ec 388
Wolfgang Betz 34:edda6a7238ec 389 #ifndef NDEBUG
Wolfgang Betz 69:22e9b407effa 390 if(SPIRIT1_STATUS() != SPIRIT1_STATE_RX) {
Wolfgang Betz 69:22e9b407effa 391 debug("\r\nAssert failed in: %s (%d): state=%x\r\n", __func__, __LINE__, last_state>>1);
Wolfgang Betz 69:22e9b407effa 392 }
Wolfgang Betz 34:edda6a7238ec 393 #endif
Wolfgang Betz 34:edda6a7238ec 394
Wolfgang Betz 69:22e9b407effa 395 disable_spirit_irq();
Wolfgang Betz 34:edda6a7238ec 396
Wolfgang Betz 69:22e9b407effa 397 /* Reset State to Ready */
Wolfgang Betz 69:22e9b407effa 398 set_ready_state();
Wolfgang Betz 34:edda6a7238ec 399
Wolfgang Betz 69:22e9b407effa 400 /* Stores the RSSI value */
Wolfgang Betz 69:22e9b407effa 401 rssi_value = qi_get_rssi_dbm();
Wolfgang Betz 34:edda6a7238ec 402
Wolfgang Betz 69:22e9b407effa 403 enable_spirit_irq();
Wolfgang Betz 34:edda6a7238ec 404
Wolfgang Betz 69:22e9b407effa 405 /* Puts the SPIRIT1 in its previous state */
Wolfgang Betz 69:22e9b407effa 406 if(spirit_state==OFF) {
Wolfgang Betz 69:22e9b407effa 407 off();
Wolfgang Betz 34:edda6a7238ec 408 #ifndef NDEBUG
Wolfgang Betz 34:edda6a7238ec 409 #ifdef USE_STANDBY_STATE
Wolfgang Betz 69:22e9b407effa 410 if(SPIRIT1_STATUS() != SPIRIT1_STATE_STANDBY) {
Wolfgang Betz 34:edda6a7238ec 411 #else
Wolfgang Betz 69:22e9b407effa 412 if(SPIRIT1_STATUS() != SPIRIT1_STATE_READY) {
Wolfgang Betz 34:edda6a7238ec 413 #endif
Wolfgang Betz 69:22e9b407effa 414 debug("\r\nAssert failed in: %s (%d): state=%x\r\n", __func__, __LINE__, last_state>>1);
Wolfgang Betz 69:22e9b407effa 415 }
Wolfgang Betz 34:edda6a7238ec 416 #endif
Wolfgang Betz 69:22e9b407effa 417 } else {
Wolfgang Betz 69:22e9b407effa 418 disable_spirit_irq();
Wolfgang Betz 34:edda6a7238ec 419
Wolfgang Betz 69:22e9b407effa 420 set_ready_state();
Wolfgang Betz 34:edda6a7238ec 421
Wolfgang Betz 69:22e9b407effa 422 cmd_strobe(SPIRIT1_STROBE_RX);
Wolfgang Betz 69:22e9b407effa 423 BUSYWAIT_UNTIL(SPIRIT1_STATUS() == SPIRIT1_STATE_RX, STATE_TIMEOUT);
Wolfgang Betz 69:22e9b407effa 424 if((last_state & SPIRIT1_STATE_STATEBITS) != SPIRIT1_STATE_RX) {
Wolfgang Betz 69:22e9b407effa 425 error("\r\nSpirit1: (#2) failed to enter rx (%x) => retry\r\n", last_state>>1);
Wolfgang Betz 69:22e9b407effa 426 }
Wolfgang Betz 34:edda6a7238ec 427
Wolfgang Betz 69:22e9b407effa 428 enable_spirit_irq();
Wolfgang Betz 34:edda6a7238ec 429
Wolfgang Betz 34:edda6a7238ec 430 #ifndef NDEBUG
Wolfgang Betz 69:22e9b407effa 431 if(SPIRIT1_STATUS() != SPIRIT1_STATE_RX) {
Wolfgang Betz 69:22e9b407effa 432 debug("\r\nAssert failed in: %s (%d): state=%x\r\n", __func__, __LINE__, last_state>>1);
Wolfgang Betz 69:22e9b407effa 433 }
Wolfgang Betz 34:edda6a7238ec 434 #endif
Wolfgang Betz 69:22e9b407effa 435 }
Wolfgang Betz 34:edda6a7238ec 436
Wolfgang Betz 69:22e9b407effa 437 /* Checks the RSSI value with the threshold */
Wolfgang Betz 69:22e9b407effa 438 if(rssi_value<CCA_THRESHOLD) {
Wolfgang Betz 69:22e9b407effa 439 return 0;
Wolfgang Betz 69:22e9b407effa 440 } else {
Wolfgang Betz 69:22e9b407effa 441 return 1;
Wolfgang Betz 69:22e9b407effa 442 }
Wolfgang Betz 69:22e9b407effa 443 }
Wolfgang Betz 34:edda6a7238ec 444
Wolfgang Betz 69:22e9b407effa 445 int SimpleSpirit1::get_pending_packet(void)
Wolfgang Betz 69:22e9b407effa 446 {
Wolfgang Betz 69:22e9b407effa 447 return !IS_RXBUF_EMPTY();
Wolfgang Betz 69:22e9b407effa 448 }
Wolfgang Betz 34:edda6a7238ec 449
Wolfgang Betz 69:22e9b407effa 450 /** Spirit Irq Callback **/
Wolfgang Betz 69:22e9b407effa 451 /* betzw - TODO: use threaded interrupt handling when `MBED_CONF_RTOS_PRESENT` is defined (see `atmel-rf-driver`) */
Wolfgang Betz 69:22e9b407effa 452 void SimpleSpirit1::IrqHandler() {
Wolfgang Betz 69:22e9b407effa 453 st_lib_spirit_irqs x_irq_status;
Wolfgang Betz 34:edda6a7238ec 454
Wolfgang Betz 69:22e9b407effa 455 /* get interrupt source from radio */
Wolfgang Betz 69:22e9b407effa 456 irq_get_status(&x_irq_status);
Wolfgang Betz 34:edda6a7238ec 457
Wolfgang Betz 69:22e9b407effa 458 /* The IRQ_TX_DATA_SENT notifies the packet has been sent. Puts the SPIRIT1 in RX */
Wolfgang Betz 69:22e9b407effa 459 if(x_irq_status.IRQ_TX_DATA_SENT) { /* betzw - NOTE: MUST be handled before `IRQ_RX_DATA_READY` for Nanostack integration!
Wolfgang Betz 65:a16f0064110a 460 Logically, Nanostack only expects the "DONE" after "SUCCESS" (if it gets
Wolfgang Betz 65:a16f0064110a 461 DONE before SUCCESS, it assumes you're not going to bother to send SUCCESS).
Wolfgang Betz 69:22e9b407effa 462 */
Wolfgang Betz 34:edda6a7238ec 463 #ifdef DEBUG_IRQ
Wolfgang Betz 69:22e9b407effa 464 uint32_t *tmp = (uint32_t*)&x_irq_status;
Wolfgang Betz 69:22e9b407effa 465 debug_if(!((*tmp) & IRQ_TX_DATA_SENT_MASK), "\r\nAssert failed in: %s (%d)\r\n", __func__, __LINE__);
Wolfgang Betz 69:22e9b407effa 466 debug_if(tx_fifo_remaining != 0, "\r\nAssert failed in: %s (%d)\r\n", __func__, __LINE__);
Wolfgang Betz 34:edda6a7238ec 467 #endif
Wolfgang Betz 45:2d01cc9bc761 468
Wolfgang Betz 69:22e9b407effa 469 if(_spirit_tx_started) {
Wolfgang Betz 69:22e9b407effa 470 _spirit_tx_started = false;
Wolfgang Betz 45:2d01cc9bc761 471
Wolfgang Betz 69:22e9b407effa 472 /* call user callback */
Wolfgang Betz 69:22e9b407effa 473 if(_current_irq_callback) {
Wolfgang Betz 69:22e9b407effa 474 _current_irq_callback(TX_DONE);
Wolfgang Betz 69:22e9b407effa 475 }
Wolfgang Betz 69:22e9b407effa 476 }
Wolfgang Betz 40:343254875d89 477
Wolfgang Betz 69:22e9b407effa 478 /* Disable handling of other TX flags */
Wolfgang Betz 69:22e9b407effa 479 x_irq_status.IRQ_TX_FIFO_ALMOST_EMPTY = S_RESET;
Wolfgang Betz 69:22e9b407effa 480 tx_fifo_buffer = NULL;
Wolfgang Betz 69:22e9b407effa 481 }
Wolfgang Betz 45:2d01cc9bc761 482
Wolfgang Betz 47:3a30b960a8c2 483 #ifndef RX_FIFO_THR_WA
Wolfgang Betz 69:22e9b407effa 484 /* The IRQ_TX_FIFO_ALMOST_EMPTY notifies an nearly empty TX fifo */
Wolfgang Betz 69:22e9b407effa 485 if(x_irq_status.IRQ_TX_FIFO_ALMOST_EMPTY) {
Wolfgang Betz 45:2d01cc9bc761 486 #ifdef DEBUG_IRQ
Wolfgang Betz 69:22e9b407effa 487 uint32_t *tmp = (uint32_t*)&x_irq_status;
Wolfgang Betz 69:22e9b407effa 488 debug_if(!((*tmp) & IRQ_TX_FIFO_ALMOST_EMPTY_MASK), "\r\nAssert failed in: %s (%d)\r\n", __func__, __LINE__);
Wolfgang Betz 69:22e9b407effa 489 debug_if(!_spirit_tx_started, "\r\nAssert failed in: %s (%d)\r\n", __func__, __LINE__);
Wolfgang Betz 69:22e9b407effa 490 debug_if(tx_fifo_buffer == NULL, "\r\nAssert failed in: %s (%d)\r\n", __func__, __LINE__);
Wolfgang Betz 45:2d01cc9bc761 491 #endif
Wolfgang Betz 45:2d01cc9bc761 492
Wolfgang Betz 69:22e9b407effa 493 int8_t fifo_available = SPIRIT_MAX_FIFO_LEN/2; // fill-up half fifo
Wolfgang Betz 69:22e9b407effa 494 int8_t to_send = (tx_fifo_remaining > fifo_available) ? fifo_available : tx_fifo_remaining;
Wolfgang Betz 45:2d01cc9bc761 495
Wolfgang Betz 69:22e9b407effa 496 tx_fifo_remaining -= to_send;
Wolfgang Betz 45:2d01cc9bc761 497
Wolfgang Betz 69:22e9b407effa 498 /* Fill FIFO Buffer */
Wolfgang Betz 69:22e9b407effa 499 if(to_send > 0) {
Wolfgang Betz 69:22e9b407effa 500 spi_write_linear_fifo(to_send, (uint8_t*)&tx_fifo_buffer[tx_buffer_pos]);
Wolfgang Betz 69:22e9b407effa 501 }
Wolfgang Betz 69:22e9b407effa 502 tx_buffer_pos += to_send;
Wolfgang Betz 69:22e9b407effa 503 }
Wolfgang Betz 47:3a30b960a8c2 504 #endif // !RX_FIFO_THR_WA
Wolfgang Betz 34:edda6a7238ec 505
Wolfgang Betz 69:22e9b407effa 506 /* TX FIFO underflow/overflow error */
Wolfgang Betz 69:22e9b407effa 507 if(x_irq_status.IRQ_TX_FIFO_ERROR) {
Wolfgang Betz 34:edda6a7238ec 508 #ifdef DEBUG_IRQ
Wolfgang Betz 69:22e9b407effa 509 uint32_t *tmp = (uint32_t*)&x_irq_status;
Wolfgang Betz 69:22e9b407effa 510 debug("\r\n%s (%d): irq=%x\r\n", __func__, __LINE__, *tmp);
Wolfgang Betz 69:22e9b407effa 511 debug_if(!((*tmp) & IRQ_TX_FIFO_ERROR_MASK), "\r\nAssert failed in: %s (%d)\r\n", __func__, __LINE__);
Wolfgang Betz 34:edda6a7238ec 512 #endif
Wolfgang Betz 69:22e9b407effa 513 if(_spirit_tx_started) {
Wolfgang Betz 69:22e9b407effa 514 _spirit_tx_started = false;
Wolfgang Betz 69:22e9b407effa 515 /* call user callback */
Wolfgang Betz 69:22e9b407effa 516 if(_current_irq_callback) {
Wolfgang Betz 69:22e9b407effa 517 _current_irq_callback(TX_ERR);
Wolfgang Betz 69:22e9b407effa 518 }
Wolfgang Betz 69:22e9b407effa 519 }
Wolfgang Betz 40:343254875d89 520
Wolfgang Betz 69:22e9b407effa 521 /* reset data still to be sent */
Wolfgang Betz 69:22e9b407effa 522 tx_fifo_remaining = 0;
Wolfgang Betz 69:22e9b407effa 523 }
Wolfgang Betz 34:edda6a7238ec 524
Wolfgang Betz 69:22e9b407effa 525 /* The IRQ_RX_DATA_READY notifies a new packet arrived */
Wolfgang Betz 69:22e9b407effa 526 if(x_irq_status.IRQ_RX_DATA_READY) {
Wolfgang Betz 42:92a60a905ee7 527 #ifdef DEBUG_IRQ
Wolfgang Betz 69:22e9b407effa 528 uint32_t *tmp = (uint32_t*)&x_irq_status;
Wolfgang Betz 69:22e9b407effa 529 debug_if(!((*tmp) & IRQ_RX_DATA_READY_MASK), "\r\nAssert failed in: %s (%d)\r\n", __func__, __LINE__);
Wolfgang Betz 42:92a60a905ee7 530 #endif
Wolfgang Betz 34:edda6a7238ec 531
Wolfgang Betz 69:22e9b407effa 532 if(!_is_receiving) { // spurious irq?!? (betzw: see comments on macro 'RX_FIFO_THR_WA'!)
Wolfgang Betz 44:aedd63cb0ce3 533 #ifdef HEAVY_DEBUG
Wolfgang Betz 69:22e9b407effa 534 debug("\r\n%s (%d): irq=%x\r\n", __func__, __LINE__, *tmp);
Wolfgang Betz 43:a512f909514a 535 #endif
Wolfgang Betz 69:22e9b407effa 536 } else {
Wolfgang Betz 69:22e9b407effa 537 _is_receiving = false; // Finished receiving
Wolfgang Betz 69:22e9b407effa 538 stop_rx_timeout();
Wolfgang Betz 43:a512f909514a 539
Wolfgang Betz 69:22e9b407effa 540 spirit_rx_len = pkt_basic_get_received_pkt_length();
Wolfgang Betz 34:edda6a7238ec 541
Wolfgang Betz 34:edda6a7238ec 542 #ifdef DEBUG_IRQ
Wolfgang Betz 69:22e9b407effa 543 debug_if(!(spirit_rx_len <= MAX_PACKET_LEN), "\r\n%s (%d): irq=%x\r\n", __func__, __LINE__, *tmp);
Wolfgang Betz 34:edda6a7238ec 544 #endif
Wolfgang Betz 34:edda6a7238ec 545
Wolfgang Betz 69:22e9b407effa 546 if(spirit_rx_len <= MAX_PACKET_LEN) {
Wolfgang Betz 69:22e9b407effa 547 uint8_t to_receive = spirit_rx_len - _spirit_rx_pos;
Wolfgang Betz 69:22e9b407effa 548 if(to_receive > 0) {
Wolfgang Betz 69:22e9b407effa 549 spi_read_linear_fifo(to_receive, &spirit_rx_buf[_spirit_rx_pos]);
Wolfgang Betz 69:22e9b407effa 550 _spirit_rx_pos += to_receive;
Wolfgang Betz 69:22e9b407effa 551 }
Wolfgang Betz 69:22e9b407effa 552 }
Wolfgang Betz 43:a512f909514a 553
Wolfgang Betz 69:22e9b407effa 554 cmd_strobe(SPIRIT1_STROBE_FRX);
Wolfgang Betz 43:a512f909514a 555
Wolfgang Betz 69:22e9b407effa 556 last_rssi = qi_get_rssi(); //MGR
Wolfgang Betz 69:22e9b407effa 557 last_sqi = qi_get_sqi(); //MGR
Wolfgang Betz 43:a512f909514a 558
Wolfgang Betz 69:22e9b407effa 559 /* call user callback */
Wolfgang Betz 69:22e9b407effa 560 if((_spirit_rx_pos == spirit_rx_len) && _current_irq_callback) {
Wolfgang Betz 69:22e9b407effa 561 _current_irq_callback(RX_DONE);
Wolfgang Betz 69:22e9b407effa 562 }
Wolfgang Betz 43:a512f909514a 563
Wolfgang Betz 69:22e9b407effa 564 /* Disable handling of other RX flags */
Wolfgang Betz 69:22e9b407effa 565 x_irq_status.IRQ_RX_FIFO_ALMOST_FULL = S_RESET;
Wolfgang Betz 69:22e9b407effa 566 }
Wolfgang Betz 69:22e9b407effa 567 }
Wolfgang Betz 34:edda6a7238ec 568
Wolfgang Betz 47:3a30b960a8c2 569 #ifndef RX_FIFO_THR_WA
Wolfgang Betz 69:22e9b407effa 570 /* RX FIFO almost full */
Wolfgang Betz 69:22e9b407effa 571 if(x_irq_status.IRQ_RX_FIFO_ALMOST_FULL) {
Wolfgang Betz 43:a512f909514a 572 #ifdef DEBUG_IRQ
Wolfgang Betz 69:22e9b407effa 573 uint32_t *tmp = (uint32_t*)&x_irq_status;
Wolfgang Betz 69:22e9b407effa 574 debug_if(!((*tmp) & IRQ_RX_FIFO_ALMOST_FULL_MASK), "\r\nAssert failed in: %s (%d)\r\n", __func__, __LINE__);
Wolfgang Betz 43:a512f909514a 575 #endif
Wolfgang Betz 69:22e9b407effa 576 if(!_is_receiving) { // spurious irq?!?
Wolfgang Betz 43:a512f909514a 577 #ifdef DEBUG_IRQ
Wolfgang Betz 69:22e9b407effa 578 debug("\r\n%s (%d): irq=%x\r\n", __func__, __LINE__, *tmp);
Wolfgang Betz 43:a512f909514a 579 #endif
Wolfgang Betz 69:22e9b407effa 580 } else {
Wolfgang Betz 69:22e9b407effa 581 uint8_t fifo_available = linear_fifo_read_num_elements_rx_fifo();
Wolfgang Betz 69:22e9b407effa 582 if((fifo_available + _spirit_rx_pos) <= MAX_PACKET_LEN) {
Wolfgang Betz 69:22e9b407effa 583 spi_read_linear_fifo(fifo_available, &spirit_rx_buf[_spirit_rx_pos]);
Wolfgang Betz 69:22e9b407effa 584 _spirit_rx_pos += fifo_available;
Wolfgang Betz 69:22e9b407effa 585 } else {
Wolfgang Betz 48:373e1b7e424f 586 #ifdef DEBUG_IRQ
Wolfgang Betz 69:22e9b407effa 587 debug("\r\n%s (%d): irq=%x\r\n", __func__, __LINE__, *tmp);
Wolfgang Betz 48:373e1b7e424f 588 #endif
Wolfgang Betz 69:22e9b407effa 589 }
Wolfgang Betz 69:22e9b407effa 590 }
Wolfgang Betz 69:22e9b407effa 591 }
Wolfgang Betz 47:3a30b960a8c2 592 #endif // !RX_FIFO_THR_WA
Wolfgang Betz 43:a512f909514a 593
Wolfgang Betz 69:22e9b407effa 594 /* Reception errors */
Wolfgang Betz 69:22e9b407effa 595 if((x_irq_status.IRQ_RX_FIFO_ERROR) || (x_irq_status.IRQ_RX_DATA_DISC)) {
Wolfgang Betz 45:2d01cc9bc761 596 #ifdef DEBUG_IRQ
Wolfgang Betz 69:22e9b407effa 597 uint32_t *tmp = (uint32_t*)&x_irq_status;
Wolfgang Betz 69:22e9b407effa 598 debug("\r\n%s (%d): irq=%x\r\n", __func__, __LINE__, *tmp);
Wolfgang Betz 69:22e9b407effa 599 debug_if(!((*tmp) & (IRQ_RX_FIFO_ERROR_MASK | IRQ_RX_DATA_DISC_MASK)), "\r\nAssert failed in: %s (%d)\r\n", __func__, __LINE__);
Wolfgang Betz 45:2d01cc9bc761 600 #endif
Wolfgang Betz 69:22e9b407effa 601 rx_timeout_handler();
Wolfgang Betz 69:22e9b407effa 602 if(_spirit_tx_started) {
Wolfgang Betz 69:22e9b407effa 603 _spirit_tx_started = false;
Wolfgang Betz 69:22e9b407effa 604 /* call user callback */
Wolfgang Betz 69:22e9b407effa 605 if(_current_irq_callback) {
Wolfgang Betz 69:22e9b407effa 606 _current_irq_callback(TX_ERR);
Wolfgang Betz 69:22e9b407effa 607 }
Wolfgang Betz 69:22e9b407effa 608 }
Wolfgang Betz 69:22e9b407effa 609 }
Wolfgang Betz 34:edda6a7238ec 610
Wolfgang Betz 69:22e9b407effa 611 /* The IRQ_VALID_SYNC is used to notify a new packet is coming */
Wolfgang Betz 69:22e9b407effa 612 if(x_irq_status.IRQ_VALID_SYNC) {
Wolfgang Betz 42:92a60a905ee7 613 #ifdef DEBUG_IRQ
Wolfgang Betz 69:22e9b407effa 614 uint32_t *tmp = (uint32_t*)&x_irq_status;
Wolfgang Betz 69:22e9b407effa 615 debug_if(!((*tmp) & IRQ_VALID_SYNC_MASK), "\r\nAssert failed in: %s (%d)\r\n", __func__, __LINE__);
Wolfgang Betz 42:92a60a905ee7 616 #endif
Wolfgang Betz 69:22e9b407effa 617 /* betzw - NOTE: there is a race condition between Spirit1 receiving packets and
Wolfgang Betz 69:22e9b407effa 618 * the MCU trying to send a packet, which gets resolved in favor of
Wolfgang Betz 69:22e9b407effa 619 * sending.
Wolfgang Betz 69:22e9b407effa 620 */
Wolfgang Betz 69:22e9b407effa 621 if(_spirit_tx_started) {
Wolfgang Betz 34:edda6a7238ec 622 #ifdef DEBUG_IRQ
Wolfgang Betz 69:22e9b407effa 623 debug("\r\n%s (%d): irq=%x\r\n", __func__, __LINE__, *tmp);
Wolfgang Betz 34:edda6a7238ec 624 #endif
Wolfgang Betz 69:22e9b407effa 625 } else {
Wolfgang Betz 69:22e9b407effa 626 _is_receiving = true;
Wolfgang Betz 69:22e9b407effa 627 start_rx_timeout();
Wolfgang Betz 69:22e9b407effa 628 }
Wolfgang Betz 69:22e9b407effa 629 }
Wolfgang Betz 69:22e9b407effa 630 }