#define AO_RADIO_MAX_RECV sizeof(struct ao_packet)
#define AO_RADIO_MAX_SEND sizeof(struct ao_packet)
-uint8_t ao_radio_wake;
-uint8_t ao_radio_mutex;
-uint8_t ao_radio_abort;
-uint8_t ao_radio_in_recv;
+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 */
#define CC1120_DEBUG AO_FEC_DEBUG
#define CC1120_TRACE 0
#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;
+}
+
+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_strobe(CC1120_STX);
}
if ((state >> CC1120_STATUS_STATE) == CC1120_STATUS_STATE_IDLE)
break;
}
+ /* Flush any pending TX bytes */
+ ao_radio_strobe(CC1120_SFTX);
}
/*
(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,
};
/*
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)
ao_radio_start_tx();
ao_arch_block_interrupts();
- while (!ao_radio_wake && !ao_radio_abort)
+ while (!ao_radio_wake && !ao_radio_abort && !ao_radio_mcu_wake)
ao_sleep(&ao_radio_wake);
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_wait_isr(void)
{
- ao_radio_wake = 0;
ao_arch_block_interrupts();
- while (!ao_radio_wake)
+ while (!ao_radio_wake && !ao_radio_mcu_wake && !ao_radio_abort)
ao_sleep(&ao_radio_wake);
ao_arch_release_interrupts();
+ if (ao_radio_mcu_wake)
+ ao_radio_check_marc_status();
}
static uint8_t
if (!wait_fifo)
return 0;
fifo_space = ao_radio_tx_fifo_space();
- } while (!fifo_space);
+ } while (!fifo_space && !ao_radio_abort);
return fifo_space;
}
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);
}
fifo_space = ao_radio_wait_tx(encode_len != 0);
+ if (ao_radio_abort) {
+ ao_radio_idle();
+ break;
+ }
}
ao_radio_put();
}
uint8_t this_len = cnt;
/* Wait for some space in the fifo */
- while ((fifo_space = ao_radio_tx_fifo_space()) == 0) {
+ while (!ao_radio_abort && (fifo_space = ao_radio_tx_fifo_space()) == 0) {
ao_radio_wake = 0;
- ao_arch_block_interrupts();
- while (!ao_radio_wake)
- ao_sleep(&ao_radio_wake);
- ao_arch_release_interrupts();
+ ao_radio_wait_isr();
}
+ if (ao_radio_abort)
+ break;
if (this_len > fifo_space)
this_len = fifo_space;
} 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();
}
ao_radio_put();
{
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)
{
- ao_arch_block_interrupts();
- 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;
- ao_arch_release_interrupts();
+ 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;
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();
+ if (ao_radio_abort)
+ 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();
+abort:
ao_radio_strobe(CC1120_SIDLE);
/* Convert from 'real' rssi to cc1111-style values */
((uint8_t *) d)[size] = (uint8_t) rssi;
- ao_radio_in_recv = 0;
-
- if (ao_radio_abort)
- ao_delay(1);
-
#if AO_PROFILE
rx_last_done_tick = rx_done_tick;
rx_done_tick = ao_profile_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_packet_slave_stop();
ao_aprs_send();
}
+#endif
#endif
static const struct ao_cmds ao_radio_cmds[] = {
{ 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_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]);
}
projects / fw / altos / blobdiff