#include <ao_fec.h>
#include <ao_packet.h>
-uint8_t ao_radio_wake;
-uint8_t ao_radio_mutex;
-uint8_t ao_radio_abort;
-uint8_t ao_radio_in_recv;
+#define AO_RADIO_MAX_RECV sizeof(struct ao_packet)
+#define AO_RADIO_MAX_SEND sizeof(struct ao_packet)
+
+static uint8_t ao_radio_mutex;
+
+static uint8_t ao_radio_wake; /* radio ready. Also used as sleep address */
+static uint8_t ao_radio_abort; /* radio operation should abort */
+static uint8_t ao_radio_mcu_wake; /* MARC status change */
+static uint8_t ao_radio_marc_status; /* Last read MARC status value */
+static uint8_t ao_radio_tx_finished; /* MARC status indicates TX finished */
+
+int8_t ao_radio_rssi; /* Last received RSSI value */
#define CC1120_DEBUG AO_FEC_DEBUG
#define CC1120_TRACE 0
-const uint32_t ao_radio_cal = 0x6ca333;
+extern const uint32_t ao_radio_cal;
#define FOSC 32000000
-#define ao_radio_select() ao_spi_get_mask(AO_CC1120_SPI_CS_PORT,(1 << AO_CC1120_SPI_CS_PIN),AO_CC1120_SPI_BUS,AO_SPI_SPEED_1MHz)
+#define ao_radio_select() ao_spi_get_mask(AO_CC1120_SPI_CS_PORT,(1 << AO_CC1120_SPI_CS_PIN),AO_CC1120_SPI_BUS,AO_SPI_SPEED_4MHz)
#define ao_radio_deselect() ao_spi_put_mask(AO_CC1120_SPI_CS_PORT,(1 << AO_CC1120_SPI_CS_PIN),AO_CC1120_SPI_BUS)
#define ao_radio_spi_send(d,l) ao_spi_send((d), (l), AO_CC1120_SPI_BUS)
#define ao_radio_spi_send_fixed(d,l) ao_spi_send_fixed((d), (l), AO_CC1120_SPI_BUS)
#define ao_radio_rdf_value 0x55
static uint8_t
-ao_radio_marc_status(void)
+ao_radio_get_marc_status(void)
{
return ao_radio_reg_read(CC1120_MARC_STATUS1);
}
static void
-ao_radio_tx_isr(void)
+ao_radio_mcu_wakeup_isr(void)
+{
+ ao_radio_mcu_wake = 1;
+ ao_wakeup(&ao_radio_wake);
+}
+
+
+static void
+ao_radio_check_marc_status(void)
+{
+ ao_radio_mcu_wake = 0;
+ ao_radio_marc_status = ao_radio_get_marc_status();
+
+ /* Anyt other than 'tx/rx finished' means an error occurred */
+ if (ao_radio_marc_status & ~(CC1120_MARC_STATUS1_TX_FINISHED|CC1120_MARC_STATUS1_RX_FINISHED))
+ ao_radio_abort = 1;
+ if (ao_radio_marc_status & (CC1120_MARC_STATUS1_TX_FINISHED))
+ ao_radio_tx_finished = 1;
+}
+
+static void
+ao_radio_isr(void)
{
ao_exti_disable(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN);
ao_radio_wake = 1;
static void
ao_radio_start_tx(void)
{
- ao_exti_set_callback(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN, ao_radio_tx_isr);
+ ao_exti_set_callback(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN, ao_radio_isr);
ao_exti_enable(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN);
+ ao_exti_enable(AO_CC1120_MCU_WAKEUP_PORT, AO_CC1120_MCU_WAKEUP_PIN);
+ ao_radio_tx_finished = 0;
ao_radio_strobe(CC1120_STX);
}
uint8_t state = ao_radio_strobe(CC1120_SIDLE);
if ((state >> CC1120_STATUS_STATE) == CC1120_STATUS_STATE_IDLE)
break;
+ if ((state >> CC1120_STATUS_STATE) == CC1120_STATUS_STATE_TX_FIFO_ERROR)
+ ao_radio_strobe(CC1120_SFTX);
}
+ /* Flush any pending TX bytes */
+ ao_radio_strobe(CC1120_SFTX);
}
/*
#define PACKET_DEV_M 80
/*
- * For our packet data, set the symbol rate to 38360 Baud
+ * For our packet data, set the symbol rate to 38400 Baud
*
* (2**20 + DATARATE_M) * 2 ** DATARATE_E
* Rdata = -------------------------------------- * fosc
(0 << CC1120_PKT_CFG0_PKG_BIT_LEN) |
(0 << CC1120_PKT_CFG0_UART_MODE_EN) |
(0 << CC1120_PKT_CFG0_UART_SWAP_EN)),
+ AO_CC1120_MARC_GPIO_IOCFG, CC1120_IOCFG_GPIO_CFG_MARC_MCU_WAKEUP,
};
static const uint16_t packet_tx_setup[] = {
CC1120_PKT_CFG2, ((CC1120_PKT_CFG2_CCA_MODE_ALWAYS_CLEAR << CC1120_PKT_CFG2_CCA_MODE) |
(CC1120_PKT_CFG2_PKT_FORMAT_NORMAL << CC1120_PKT_CFG2_PKT_FORMAT)),
- CC1120_IOCFG2, CC1120_IOCFG_GPIO_CFG_RX0TX1_CFG,
+ AO_CC1120_INT_GPIO_IOCFG, CC1120_IOCFG_GPIO_CFG_RX0TX1_CFG,
};
static const uint16_t packet_rx_setup[] = {
CC1120_PKT_CFG2, ((CC1120_PKT_CFG2_CCA_MODE_ALWAYS_CLEAR << CC1120_PKT_CFG2_CCA_MODE) |
(CC1120_PKT_CFG2_PKT_FORMAT_SYNCHRONOUS_SERIAL << CC1120_PKT_CFG2_PKT_FORMAT)),
- CC1120_IOCFG2, CC1120_IOCFG_GPIO_CFG_CLKEN_SOFT,
+ AO_CC1120_INT_GPIO_IOCFG, CC1120_IOCFG_GPIO_CFG_CLKEN_SOFT,
};
/*
/*
* For our RDF beacon, set the symbol rate to 2kBaud (for a 1kHz tone)
*
- * (2**20 - DATARATE_M) * 2 ** DATARATE_E
+ * (2**20 + DATARATE_M) * 2 ** DATARATE_E
* Rdata = -------------------------------------- * fosc
* 2 ** 39
*
- * DATARATE_M = 511705
- * DATARATE_E = 6
+ * DATARATE_M = 25166
+ * DATARATE_E = 5
*
* To make the tone last for 200ms, we need 2000 * .2 = 400 bits or 50 bytes
*/
(0 << CC1120_PKT_CFG0_UART_SWAP_EN)),
};
-static uint8_t ao_radio_mode;
+/*
+ * APRS deviation is 3kHz
+ *
+ * fdev = fosc >> 24 * (256 + dev_m) << dev_e
+ *
+ * 32e6Hz / (2 ** 24) * (256 + 137) * (2 ** 2) = 2998Hz
+ */
+
+#define APRS_DEV_E 2
+#define APRS_DEV_M 137
+
+/*
+ * For our APRS beacon, set the symbol rate to 9.6kBaud (8x oversampling for 1200 baud data rate)
+ *
+ * (2**20 + DATARATE_M) * 2 ** DATARATE_E
+ * Rdata = -------------------------------------- * fosc
+ * 2 ** 39
+ *
+ * DATARATE_M = 239914
+ * DATARATE_E = 7
+ *
+ * Rdata = 9599.998593330383301
+ *
+ */
+#define APRS_DRATE_E 7
+#define APRS_DRATE_M 239914
+
+static const uint16_t aprs_setup[] = {
+ CC1120_DEVIATION_M, APRS_DEV_M,
+ CC1120_MODCFG_DEV_E, ((CC1120_MODCFG_DEV_E_MODEM_MODE_NORMAL << CC1120_MODCFG_DEV_E_MODEM_MODE) |
+ (CC1120_MODCFG_DEV_E_MOD_FORMAT_2_GFSK << CC1120_MODCFG_DEV_E_MOD_FORMAT) |
+ (APRS_DEV_E << CC1120_MODCFG_DEV_E_DEV_E)),
+ CC1120_DRATE2, ((APRS_DRATE_E << CC1120_DRATE2_DATARATE_E) |
+ (((APRS_DRATE_M >> 16) & CC1120_DRATE2_DATARATE_M_19_16_MASK) << CC1120_DRATE2_DATARATE_M_19_16)),
+ CC1120_DRATE1, ((APRS_DRATE_M >> 8) & 0xff),
+ CC1120_DRATE0, ((APRS_DRATE_M >> 0) & 0xff),
+ CC1120_PKT_CFG2, ((CC1120_PKT_CFG2_CCA_MODE_ALWAYS_CLEAR << CC1120_PKT_CFG2_CCA_MODE) |
+ (CC1120_PKT_CFG2_PKT_FORMAT_NORMAL << CC1120_PKT_CFG2_PKT_FORMAT)),
+ CC1120_PKT_CFG1, ((0 << CC1120_PKT_CFG1_WHITE_DATA) |
+ (CC1120_PKT_CFG1_ADDR_CHECK_CFG_NONE << CC1120_PKT_CFG1_ADDR_CHECK_CFG) |
+ (CC1120_PKT_CFG1_CRC_CFG_DISABLED << CC1120_PKT_CFG1_CRC_CFG) |
+ (0 << CC1120_PKT_CFG1_APPEND_STATUS)),
+};
+
+#define AO_PKT_CFG0_INFINITE ((0 << CC1120_PKT_CFG0_RESERVED7) | \
+ (CC1120_PKT_CFG0_LENGTH_CONFIG_INFINITE << CC1120_PKT_CFG0_LENGTH_CONFIG) | \
+ (0 << CC1120_PKT_CFG0_PKG_BIT_LEN) | \
+ (0 << CC1120_PKT_CFG0_UART_MODE_EN) | \
+ (0 << CC1120_PKT_CFG0_UART_SWAP_EN))
+
+#define AO_PKT_CFG0_FIXED ((0 << CC1120_PKT_CFG0_RESERVED7) | \
+ (CC1120_PKT_CFG0_LENGTH_CONFIG_FIXED << CC1120_PKT_CFG0_LENGTH_CONFIG) | \
+ (0 << CC1120_PKT_CFG0_PKG_BIT_LEN) | \
+ (0 << CC1120_PKT_CFG0_UART_MODE_EN) | \
+ (0 << CC1120_PKT_CFG0_UART_SWAP_EN))
+
+static uint16_t ao_radio_mode;
#define AO_RADIO_MODE_BITS_PACKET 1
#define AO_RADIO_MODE_BITS_PACKET_TX 2
#define AO_RADIO_MODE_BITS_TX_FINISH 8
#define AO_RADIO_MODE_BITS_PACKET_RX 16
#define AO_RADIO_MODE_BITS_RDF 32
+#define AO_RADIO_MODE_BITS_APRS 64
+#define AO_RADIO_MODE_BITS_INFINITE 128
+#define AO_RADIO_MODE_BITS_FIXED 256
#define AO_RADIO_MODE_NONE 0
#define AO_RADIO_MODE_PACKET_TX_BUF (AO_RADIO_MODE_BITS_PACKET | AO_RADIO_MODE_BITS_PACKET_TX | AO_RADIO_MODE_BITS_TX_BUF)
#define AO_RADIO_MODE_PACKET_TX_FINISH (AO_RADIO_MODE_BITS_PACKET | AO_RADIO_MODE_BITS_PACKET_TX | AO_RADIO_MODE_BITS_TX_FINISH)
#define AO_RADIO_MODE_PACKET_RX (AO_RADIO_MODE_BITS_PACKET | AO_RADIO_MODE_BITS_PACKET_RX)
#define AO_RADIO_MODE_RDF (AO_RADIO_MODE_BITS_RDF | AO_RADIO_MODE_BITS_TX_FINISH)
+#define AO_RADIO_MODE_APRS_BUF (AO_RADIO_MODE_BITS_APRS | AO_RADIO_MODE_BITS_INFINITE | AO_RADIO_MODE_BITS_TX_BUF)
+#define AO_RADIO_MODE_APRS_LAST_BUF (AO_RADIO_MODE_BITS_APRS | AO_RADIO_MODE_BITS_FIXED | AO_RADIO_MODE_BITS_TX_BUF)
+#define AO_RADIO_MODE_APRS_FINISH (AO_RADIO_MODE_BITS_APRS | AO_RADIO_MODE_BITS_FIXED | AO_RADIO_MODE_BITS_TX_FINISH)
static void
-ao_radio_set_mode(uint8_t new_mode)
+ao_radio_set_mode(uint16_t new_mode)
{
- uint8_t changes;
+ uint16_t changes;
int i;
if (new_mode == ao_radio_mode)
ao_radio_reg_write(packet_tx_setup[i], packet_tx_setup[i+1]);
if (changes & AO_RADIO_MODE_BITS_TX_BUF)
- ao_radio_reg_write(CC1120_IOCFG2, CC1120_IOCFG_GPIO_CFG_TXFIFO_THR);
+ ao_radio_reg_write(AO_CC1120_INT_GPIO_IOCFG, CC1120_IOCFG_GPIO_CFG_TXFIFO_THR);
if (changes & AO_RADIO_MODE_BITS_TX_FINISH)
- ao_radio_reg_write(CC1120_IOCFG2, CC1120_IOCFG_GPIO_CFG_RX0TX1_CFG);
+ ao_radio_reg_write(AO_CC1120_INT_GPIO_IOCFG, CC1120_IOCFG_GPIO_CFG_RX0TX1_CFG);
if (changes & AO_RADIO_MODE_BITS_PACKET_RX)
for (i = 0; i < sizeof (packet_rx_setup) / sizeof (packet_rx_setup[0]); i += 2)
if (changes & AO_RADIO_MODE_BITS_RDF)
for (i = 0; i < sizeof (rdf_setup) / sizeof (rdf_setup[0]); i += 2)
ao_radio_reg_write(rdf_setup[i], rdf_setup[i+1]);
+
+ if (changes & AO_RADIO_MODE_BITS_APRS)
+ for (i = 0; i < sizeof (aprs_setup) / sizeof (aprs_setup[0]); i += 2)
+ ao_radio_reg_write(aprs_setup[i], aprs_setup[i+1]);
+
+ if (changes & AO_RADIO_MODE_BITS_INFINITE)
+ ao_radio_reg_write(CC1120_PKT_CFG0, AO_PKT_CFG0_INFINITE);
+
+ if (changes & AO_RADIO_MODE_BITS_FIXED)
+ ao_radio_reg_write(CC1120_PKT_CFG0, AO_PKT_CFG0_FIXED);
+
ao_radio_mode = new_mode;
}
ao_radio_configured = 1;
}
+static void
+ao_radio_set_len(uint8_t len)
+{
+ static uint8_t last_len;
+
+ if (len != last_len) {
+ ao_radio_reg_write(CC1120_PKT_LEN, len);
+ last_len = len;
+ }
+}
+
static void
ao_radio_get(uint8_t len)
{
static uint32_t last_radio_setting;
- static uint8_t last_len;
ao_mutex_get(&ao_radio_mutex);
+
if (!ao_radio_configured)
ao_radio_setup();
if (ao_config.radio_setting != last_radio_setting) {
ao_radio_reg_write(CC1120_FREQ0, ao_config.radio_setting);
last_radio_setting = ao_config.radio_setting;
}
- if (len != last_len) {
- ao_radio_reg_write(CC1120_PKT_LEN, len);
- last_len = len;
- }
+ ao_radio_set_len(len);
}
#define ao_radio_put() ao_mutex_put(&ao_radio_mutex)
{
ao_radio_start_tx();
- cli();
- while (!ao_radio_wake && !ao_radio_abort)
+ ao_arch_block_interrupts();
+ while (!ao_radio_wake && !ao_radio_abort && !ao_radio_mcu_wake)
ao_sleep(&ao_radio_wake);
- sei();
+ ao_arch_release_interrupts();
+ if (ao_radio_mcu_wake)
+ ao_radio_check_marc_status();
if (!ao_radio_wake)
ao_radio_idle();
ao_radio_put();
}
static void
-ao_radio_test(void)
+ao_radio_test_cmd(void)
{
uint8_t mode = 2;
- uint8_t radio_on;
+ static uint8_t radio_on;
ao_cmd_white();
if (ao_cmd_lex_c != '\n') {
ao_cmd_decimal();
}
}
+static void
+ao_radio_wait_isr(uint16_t timeout)
+{
+ if (timeout)
+ ao_alarm(timeout);
+ ao_arch_block_interrupts();
+ while (!ao_radio_wake && !ao_radio_mcu_wake && !ao_radio_abort)
+ if (ao_sleep(&ao_radio_wake))
+ ao_radio_abort = 1;
+ ao_arch_release_interrupts();
+ if (timeout)
+ ao_clear_alarm();
+ if (ao_radio_mcu_wake)
+ ao_radio_check_marc_status();
+}
+
+static uint8_t
+ao_radio_wait_tx(uint8_t wait_fifo)
+{
+ uint8_t fifo_space = 0;
+
+ do {
+ ao_radio_wait_isr(0);
+ if (!wait_fifo)
+ return 0;
+ fifo_space = ao_radio_tx_fifo_space();
+ } while (!fifo_space && !ao_radio_abort);
+ return fifo_space;
+}
+
+static uint8_t tx_data[(AO_RADIO_MAX_SEND + 4) * 2];
+
void
ao_radio_send(const void *d, uint8_t size)
{
uint8_t marc_status;
- static uint8_t encode[256];
- uint8_t *e = encode;
+ uint8_t *e = tx_data;
uint8_t encode_len;
uint8_t this_len;
uint8_t started = 0;
uint8_t fifo_space;
+ uint8_t q;
- encode_len = ao_fec_encode(d, size, encode);
+ encode_len = ao_fec_encode(d, size, tx_data);
ao_radio_get(encode_len);
+ ao_radio_abort = 0;
+
+ /* Flush any pending TX bytes */
+ ao_radio_strobe(CC1120_SFTX);
+
started = 0;
fifo_space = CC1120_FIFO_SIZE;
while (encode_len) {
this_len = encode_len;
+ ao_radio_wake = 0;
if (this_len > fifo_space) {
this_len = fifo_space;
ao_radio_set_mode(AO_RADIO_MODE_PACKET_TX_BUF);
ao_exti_enable(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN);
}
- do {
- ao_radio_wake = 0;
- cli();
- while (!ao_radio_wake)
- ao_sleep(&ao_radio_wake);
- sei();
- if (!encode_len)
- break;
- fifo_space = ao_radio_tx_fifo_space();
- } while (!fifo_space);
+ fifo_space = ao_radio_wait_tx(encode_len != 0);
+ if (ao_radio_abort) {
+ ao_radio_idle();
+ break;
+ }
}
+ while (started && !ao_radio_abort && !ao_radio_tx_finished)
+ ao_radio_wait_isr(0);
ao_radio_put();
}
-#define AO_RADIO_MAX_RECV 90
+#define AO_RADIO_LOTS 64
+
+void
+ao_radio_send_aprs(ao_radio_fill_func fill)
+{
+ uint8_t buf[AO_RADIO_LOTS], *b;
+ int cnt;
+ int total = 0;
+ uint8_t done = 0;
+ uint8_t started = 0;
+ uint8_t fifo_space;
+
+ ao_radio_get(0xff);
+ fifo_space = CC1120_FIFO_SIZE;
+ while (!done) {
+ cnt = (*fill)(buf, sizeof(buf));
+ if (cnt < 0) {
+ done = 1;
+ cnt = -cnt;
+ }
+ total += cnt;
+
+ /* At the last buffer, set the total length */
+ if (done)
+ ao_radio_set_len(total & 0xff);
+
+ b = buf;
+ while (cnt) {
+ uint8_t this_len = cnt;
+
+ /* Wait for some space in the fifo */
+ while (!ao_radio_abort && (fifo_space = ao_radio_tx_fifo_space()) == 0) {
+ ao_radio_wake = 0;
+ ao_radio_wait_isr(0);
+ }
+ if (ao_radio_abort)
+ break;
+ if (this_len > fifo_space)
+ this_len = fifo_space;
+
+ cnt -= this_len;
+
+ if (done) {
+ if (cnt)
+ ao_radio_set_mode(AO_RADIO_MODE_APRS_LAST_BUF);
+ else
+ ao_radio_set_mode(AO_RADIO_MODE_APRS_FINISH);
+ } else
+ ao_radio_set_mode(AO_RADIO_MODE_APRS_BUF);
+
+ ao_radio_fifo_write(b, this_len);
+ b += this_len;
+
+ if (!started) {
+ ao_radio_start_tx();
+ started = 1;
+ } else
+ ao_exti_enable(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN);
+ }
+ if (ao_radio_abort) {
+ ao_radio_idle();
+ break;
+ }
+ /* Wait for the transmitter to go idle */
+ ao_radio_wake = 0;
+ ao_radio_wait_isr(0);
+ }
+ ao_radio_put();
+}
static uint8_t rx_data[(AO_RADIO_MAX_RECV + 4) * 2 * 8];
static uint16_t rx_data_count;
{
uint8_t d;
- d = stm_spi2.dr;
- stm_spi2.dr = 0;
+ d = AO_CC1120_SPI.dr;
+ AO_CC1120_SPI.dr = 0;
if (rx_ignore == 0) {
if (rx_data_cur >= rx_data_count)
ao_exti_disable(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN);
static uint16_t
ao_radio_rx_wait(void)
{
- cli();
- rx_waiting = 1;
- while (rx_data_cur - rx_data_consumed < AO_FEC_DECODE_BLOCK &&
- !ao_radio_abort) {
- ao_sleep(&ao_radio_wake);
- }
- rx_waiting = 0;
- sei();
+ do {
+ if (ao_radio_mcu_wake)
+ ao_radio_check_marc_status();
+ ao_alarm(AO_MS_TO_TICKS(100));
+ ao_arch_block_interrupts();
+ rx_waiting = 1;
+ while (rx_data_cur - rx_data_consumed < AO_FEC_DECODE_BLOCK &&
+ !ao_radio_abort &&
+ !ao_radio_mcu_wake)
+ {
+ if (ao_sleep(&ao_radio_wake))
+ ao_radio_abort = 1;
+ }
+ rx_waiting = 0;
+ ao_arch_release_interrupts();
+ ao_clear_alarm();
+ } while (ao_radio_mcu_wake);
if (ao_radio_abort)
return 0;
rx_data_consumed += AO_FEC_DECODE_BLOCK;
}
uint8_t
-ao_radio_recv(__xdata void *d, uint8_t size)
+ao_radio_recv(__xdata void *d, uint8_t size, uint8_t timeout)
{
uint8_t len;
uint16_t i;
- uint8_t rssi;
+ uint8_t radio_rssi = 0;
+ uint8_t rssi0;
uint8_t ret;
static int been_here = 0;
rx_data_consumed = 0;
rx_ignore = 2;
+ /* Must be set before changing the frequency; any abort
+ * after the frequency is set needs to terminate the read
+ * so that the registers can be reprogrammed
+ */
ao_radio_abort = 0;
- ao_radio_in_recv = 1;
+
/* configure interrupt pin */
ao_radio_get(len);
ao_radio_set_mode(AO_RADIO_MODE_PACKET_RX);
ao_radio_wake = 0;
+ ao_radio_mcu_wake = 0;
- stm_spi2.cr2 = 0;
+ AO_CC1120_SPI.cr2 = 0;
/* clear any RXNE */
- (void) stm_spi2.dr;
+ (void) AO_CC1120_SPI.dr;
- ao_exti_set_callback(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN, ao_radio_rx_isr);
+ /* Have the radio signal when the preamble quality goes high */
+ ao_radio_reg_write(AO_CC1120_INT_GPIO_IOCFG, CC1120_IOCFG_GPIO_CFG_PQT_REACHED);
+ ao_exti_set_mode(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN,
+ AO_EXTI_MODE_RISING|AO_EXTI_PRIORITY_HIGH);
+ ao_exti_set_callback(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN, ao_radio_isr);
ao_exti_enable(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN);
+ ao_exti_enable(AO_CC1120_MCU_WAKEUP_PORT, AO_CC1120_MCU_WAKEUP_PIN);
ao_radio_strobe(CC1120_SRX);
+ /* Wait for the preamble to appear */
+ ao_radio_wait_isr(timeout);
+ if (ao_radio_abort) {
+ ret = 0;
+ goto abort;
+ }
+
+ ao_radio_reg_write(AO_CC1120_INT_GPIO_IOCFG, CC1120_IOCFG_GPIO_CFG_CLKEN_SOFT);
+ ao_exti_set_mode(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN,
+ AO_EXTI_MODE_FALLING|AO_EXTI_PRIORITY_HIGH);
+
+ ao_exti_set_callback(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN, ao_radio_rx_isr);
+ ao_exti_enable(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN);
+
ao_radio_burst_read_start(CC1120_SOFT_RX_DATA_OUT);
ret = ao_fec_decode(rx_data, rx_data_count, d, size + 2, ao_radio_rx_wait);
ao_radio_burst_read_stop();
- ao_radio_strobe(CC1120_SIDLE);
-
+abort:
/* Convert from 'real' rssi to cc1111-style values */
- rssi = AO_RADIO_FROM_RSSI(ao_radio_reg_read(CC1120_RSSI1));
+ rssi0 = ao_radio_reg_read(CC1120_RSSI0);
+ if (rssi0 & 1) {
+ int8_t rssi = ao_radio_reg_read(CC1120_RSSI1);
+ ao_radio_rssi = rssi;
- ao_radio_put();
+ /* Bound it to the representable range */
+ if (rssi > -11)
+ rssi = -11;
+ radio_rssi = AO_RADIO_FROM_RSSI (rssi);
+ }
- /* Store the received RSSI value; the crc-OK byte is already done */
+ ao_radio_strobe(CC1120_SIDLE);
- ((uint8_t *) d)[size] = (uint8_t) rssi;
+ ao_radio_put();
- ao_radio_in_recv = 0;
+ /* Store the received RSSI value; the crc-OK byte is already done */
- if (ao_radio_abort)
- ao_delay(1);
+ ((uint8_t *) d)[size] = radio_rssi;
#if AO_PROFILE
rx_last_done_tick = rx_done_tick;
printf ("Status: %02x\n", status);
printf ("CHIP_RDY: %d\n", (status >> CC1120_STATUS_CHIP_RDY) & 1);
printf ("STATE: %s\n", cc1120_state_name[(status >> CC1120_STATUS_STATE) & CC1120_STATUS_STATE_MASK]);
- printf ("MARC: %02x\n", ao_radio_marc_status());
+ printf ("MARC: %02x\n", ao_radio_get_marc_status());
for (i = 0; i < AO_NUM_CC1120_REG; i++)
printf ("\t%02x %-20.20s\n", ao_radio_reg_read(ao_cc1120_reg[i].addr), ao_cc1120_reg[i].name);
}
static void ao_radio_beep(void) {
- ao_radio_rdf(RDF_PACKET_LEN);
+ ao_radio_rdf();
}
static void ao_radio_packet(void) {
}
}
+#if HAS_APRS
+#include <ao_aprs.h>
+
+static void
+ao_radio_aprs()
+{
+ ao_packet_slave_stop();
+ ao_aprs_send();
+}
+#endif
+
#endif
static const struct ao_cmds ao_radio_cmds[] = {
- { ao_radio_test, "C <1 start, 0 stop, none both>\0Radio carrier test" },
+ { ao_radio_test_cmd, "C <1 start, 0 stop, none both>\0Radio carrier test" },
#if CC1120_DEBUG
+#if HAS_APRS
+ { ao_radio_aprs, "G\0Send APRS packet" },
+#endif
{ ao_radio_show, "R\0Show CC1120 status" },
{ ao_radio_beep, "b\0Emit an RDF beacon" },
{ ao_radio_packet, "p\0Send a test packet" },
ao_radio_configured = 0;
ao_spi_init_cs (AO_CC1120_SPI_CS_PORT, (1 << AO_CC1120_SPI_CS_PIN));
+#if 0
AO_CC1120_SPI_CS_PORT->bsrr = ((uint32_t) (1 << AO_CC1120_SPI_CS_PIN));
for (i = 0; i < 10000; i++) {
- if ((SPI_2_GPIO->idr & (1 << SPI_2_MISO)) == 0)
+ if ((SPI_2_PORT->idr & (1 << SPI_2_MISO_PIN)) == 0)
break;
}
AO_CC1120_SPI_CS_PORT->bsrr = (1 << AO_CC1120_SPI_CS_PIN);
if (i == 10000)
- ao_panic(AO_PANIC_SELF_TEST);
+ ao_panic(AO_PANIC_SELF_TEST_CC1120);
+#endif
/* Enable the EXTI interrupt for the appropriate pin */
ao_enable_port(AO_CC1120_INT_PORT);
ao_exti_setup(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN,
AO_EXTI_MODE_FALLING|AO_EXTI_PRIORITY_HIGH,
- ao_radio_tx_isr);
+ ao_radio_isr);
+
+ /* Enable the hacked up GPIO3 pin */
+ ao_enable_port(AO_CC1120_MCU_WAKEUP_PORT);
+ ao_exti_setup(AO_CC1120_MCU_WAKEUP_PORT, AO_CC1120_MCU_WAKEUP_PIN,
+ AO_EXTI_MODE_FALLING|AO_EXTI_PRIORITY_MED,
+ ao_radio_mcu_wakeup_isr);
ao_cmd_register(&ao_radio_cmds[0]);
}