X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fdrivers%2Fao_cc1120.c;h=1d28148ba2b4a74366a87c345cad72e6f9ebb02d;hb=bd21c050fd8b96b33ab6859c942bf55cf2b91868;hp=5fe314c96130bfa02052134f9e69d89fa764c1eb;hpb=27c95adf35e646840b9bd562497eea0dc96bb9bb;p=fw%2Faltos diff --git a/src/drivers/ao_cc1120.c b/src/drivers/ao_cc1120.c index 5fe314c9..1d28148b 100644 --- a/src/drivers/ao_cc1120.c +++ b/src/drivers/ao_cc1120.c @@ -18,18 +18,22 @@ #include #include #include +#include +#include uint8_t ao_radio_wake; uint8_t ao_radio_mutex; uint8_t ao_radio_abort; +uint8_t ao_radio_in_recv; -#define CC1120_DEBUG 1 +#define CC1120_DEBUG AO_FEC_DEBUG +#define CC1120_TRACE 0 -uint32_t ao_radio_cal = 0x6ca333; +const uint32_t ao_radio_cal = 0x6ca333; #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) +#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_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) @@ -42,7 +46,7 @@ ao_radio_reg_read(uint16_t addr) uint8_t data[2]; uint8_t d; -#if CC1120_DEBUG +#if CC1120_TRACE printf("\t\tao_radio_reg_read (%04x): ", addr); flush(); #endif if (CC1120_IS_EXTENDED(addr)) { @@ -61,7 +65,7 @@ ao_radio_reg_read(uint16_t addr) ao_radio_spi_send(data, d); ao_radio_spi_recv(data, 1); ao_radio_deselect(); -#if CC1120_DEBUG +#if CC1120_TRACE printf (" %02x\n", data[0]); #endif return data[0]; @@ -73,7 +77,7 @@ ao_radio_reg_write(uint16_t addr, uint8_t value) uint8_t data[3]; uint8_t d; -#if CC1120_DEBUG +#if CC1120_TRACE printf("\t\tao_radio_reg_write (%04x): %02x\n", addr, value); #endif if (CC1120_IS_EXTENDED(addr)) { @@ -94,19 +98,48 @@ ao_radio_reg_write(uint16_t addr, uint8_t value) ao_radio_deselect(); } +static void +ao_radio_burst_read_start (uint16_t addr) +{ + uint8_t data[2]; + uint8_t d; + + if (CC1120_IS_EXTENDED(addr)) { + data[0] = ((1 << CC1120_READ) | + (1 << CC1120_BURST) | + CC1120_EXTENDED); + data[1] = addr; + d = 2; + } else { + data[0] = ((1 << CC1120_READ) | + (1 << CC1120_BURST) | + addr); + d = 1; + } + ao_radio_select(); + ao_radio_spi_send(data, d); +} + +static void +ao_radio_burst_read_stop (void) +{ + ao_radio_deselect(); +} + + static uint8_t ao_radio_strobe(uint8_t addr) { uint8_t in; -#if CC1120_DEBUG +#if CC1120_TRACE printf("\t\tao_radio_strobe (%02x): ", addr); flush(); #endif ao_radio_select(); ao_radio_duplex(&addr, &in, 1); ao_radio_deselect(); -#if CC1120_DEBUG - printf("%02x\n", in); +#if CC1120_TRACE + printf("%02x\n", in); flush(); #endif return in; } @@ -149,15 +182,19 @@ ao_radio_fifo_write_fixed(uint8_t data, uint8_t len) CC1120_FIFO); uint8_t status; - printf ("num tx bytes: %d\n", ao_radio_reg_read(CC1120_NUM_TXBYTES)); ao_radio_select(); ao_radio_duplex(&addr, &status, 1); ao_radio_spi_send_fixed(data, len); ao_radio_deselect(); - printf ("num tx bytes: %d\n", ao_radio_reg_read(CC1120_NUM_TXBYTES)); return status; } +static uint8_t +ao_radio_tx_fifo_space(void) +{ + return CC1120_FIFO_SIZE - ao_radio_reg_read(CC1120_NUM_TXBYTES); +} + static uint8_t ao_radio_status(void) { @@ -173,6 +210,97 @@ ao_radio_recv_abort(void) #define ao_radio_rdf_value 0x55 +static uint8_t +ao_radio_marc_status(void) +{ + return ao_radio_reg_read(CC1120_MARC_STATUS1); +} + +static void +ao_radio_tx_isr(void) +{ + ao_exti_disable(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN); + ao_radio_wake = 1; + ao_wakeup(&ao_radio_wake); +} + +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_enable(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN); + ao_radio_strobe(CC1120_STX); +} + +static void +ao_radio_idle(void) +{ + for (;;) { + uint8_t state = ao_radio_strobe(CC1120_SIDLE); + if ((state >> CC1120_STATUS_STATE) == CC1120_STATUS_STATE_IDLE) + break; + } +} + +/* + * Packet deviation is 20.5kHz + * + * fdev = fosc >> 24 * (256 + dev_m) << dev_e + * + * 32e6Hz / (2 ** 24) * (256 + 80) * (2 ** 5) = 20508Hz + */ + +#define PACKET_DEV_E 5 +#define PACKET_DEV_M 80 + +/* + * For our packet data, set the symbol rate to 38360 Baud + * + * (2**20 + DATARATE_M) * 2 ** DATARATE_E + * Rdata = -------------------------------------- * fosc + * 2 ** 39 + * + * + * DATARATE_M = 239914 + * DATARATE_E = 9 + */ +#define PACKET_DRATE_E 9 +#define PACKET_DRATE_M 239914 + +static const uint16_t packet_setup[] = { + CC1120_DEVIATION_M, PACKET_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) | + (PACKET_DEV_E << CC1120_MODCFG_DEV_E_DEV_E)), + CC1120_DRATE2, ((PACKET_DRATE_E << CC1120_DRATE2_DATARATE_E) | + (((PACKET_DRATE_M >> 16) & CC1120_DRATE2_DATARATE_M_19_16_MASK) << CC1120_DRATE2_DATARATE_M_19_16)), + CC1120_DRATE1, ((PACKET_DRATE_M >> 8) & 0xff), + CC1120_DRATE0, ((PACKET_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)), + CC1120_PKT_CFG0, ((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 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, +}; + +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, +}; + /* * RDF deviation is 5kHz * @@ -223,67 +351,122 @@ static const uint16_t rdf_setup[] = { (0 << CC1120_PKT_CFG0_UART_SWAP_EN)), }; -#define int_pin(w) printf("\t%s: %d\n", \ - w,\ - (AO_CC1120_INT_PORT.idr >> AO_CC1120_INT_PIN) & 1) +static uint8_t ao_radio_mode; -static uint8_t -ao_radio_marc_status(void) +#define AO_RADIO_MODE_BITS_PACKET 1 +#define AO_RADIO_MODE_BITS_PACKET_TX 2 +#define AO_RADIO_MODE_BITS_TX_BUF 4 +#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_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) + +static void +ao_radio_set_mode(uint8_t new_mode) { - return ao_radio_reg_read(CC1120_MARC_STATUS1); + uint8_t changes; + int i; + + if (new_mode == ao_radio_mode) + return; + + changes = new_mode & (~ao_radio_mode); + if (changes & AO_RADIO_MODE_BITS_PACKET) + for (i = 0; i < sizeof (packet_setup) / sizeof (packet_setup[0]); i += 2) + ao_radio_reg_write(packet_setup[i], packet_setup[i+1]); + + if (changes & AO_RADIO_MODE_BITS_PACKET_TX) + for (i = 0; i < sizeof (packet_tx_setup) / sizeof (packet_tx_setup[0]); i += 2) + 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); + + if (changes & AO_RADIO_MODE_BITS_TX_FINISH) + ao_radio_reg_write(CC1120_IOCFG2, 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_reg_write(packet_rx_setup[i], packet_rx_setup[i+1]); + + 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]); + ao_radio_mode = new_mode; } -static uint8_t -ao_radio_tx_done(void) +static const uint16_t radio_setup[] = { +#include "ao_cc1120_CC1120.h" +}; + +static uint8_t ao_radio_configured = 0; + +static void +ao_radio_setup(void) { - return ao_radio_marc_status() == CC1120_MARC_STATUS1_TX_FINISHED; + int i; + + ao_radio_strobe(CC1120_SRES); + + for (i = 0; i < sizeof (radio_setup) / sizeof (radio_setup[0]); i += 2) + ao_radio_reg_write(radio_setup[i], radio_setup[i+1]); + + ao_radio_mode = 0; + + ao_config_get(); + + ao_radio_configured = 1; } -static uint8_t -ao_radio_rx_done(void) +static void +ao_radio_get(uint8_t len) { - return ao_radio_marc_status() == CC1120_MARC_STATUS1_RX_FINISHED; + 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_FREQ2, ao_config.radio_setting >> 16); + ao_radio_reg_write(CC1120_FREQ1, ao_config.radio_setting >> 8); + 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; + } } +#define ao_radio_put() ao_mutex_put(&ao_radio_mutex) + void ao_radio_rdf(uint8_t len) { int i; - ao_radio_get(len); ao_radio_abort = 0; - for (i = 0; i < sizeof (rdf_setup) / sizeof (rdf_setup[0]); i += 2) - ao_radio_reg_write(rdf_setup[i], rdf_setup[i+1]); - ao_radio_reg_write(CC1120_PKT_LEN, len); - int_pin ("Before CFG"); - ao_radio_reg_write(CC1120_IOCFG2, CC1120_IOCFG_GPIO_CFG_RX0TX1_CFG); - int_pin ("After CFG"); - ao_radio_strobe(CC1120_STX); - ao_exti_enable(&AO_CC1120_INT_PORT, AO_CC1120_INT_PIN); - int_pin ("After strobe"); - ao_delay(AO_MS_TO_TICKS(100)); + ao_radio_get(len); + + ao_radio_set_mode(AO_RADIO_MODE_RDF); + ao_radio_wake = 0; + ao_radio_fifo_write_fixed(ao_radio_rdf_value, len); - int_pin ("After delay"); + + ao_radio_start_tx(); + cli(); - for (i = 0; i < 20; i++) { -#if CC1120_DEBUG - ao_delay(AO_MS_TO_TICKS(50)); - int_pin ("Waited"); - printf ("Status %02x num_tx_bytes %d marc status %x\n", - ao_radio_status(), - ao_radio_reg_read(CC1120_NUM_TXBYTES), - ao_radio_marc_status()); -#else + while (!ao_radio_wake && !ao_radio_abort) ao_sleep(&ao_radio_wake); -#endif - } sei(); - printf ("num_tx_bytes %d marc status %x\n", - ao_radio_reg_read(CC1120_NUM_TXBYTES), - ao_radio_marc_status()); - if (!ao_radio_tx_done()) + if (!ao_radio_wake) ao_radio_idle(); - ao_radio_set_packet(); ao_radio_put(); } @@ -314,7 +497,7 @@ ao_radio_test(void) #endif ao_radio_get(0xff); ao_radio_strobe(CC1120_STX); -#if CC1120_DEBUG +#if CC1120_TRACE { int t; for (t = 0; t < 10; t++) { printf ("status: %02x\n", ao_radio_status()); @@ -340,169 +523,202 @@ ao_radio_test(void) } void -ao_radio_send(void *d, uint8_t size) +ao_radio_send(const void *d, uint8_t size) { - uint8_t marc_status; + uint8_t marc_status; + static uint8_t encode[256]; + uint8_t *e = encode; + uint8_t encode_len; + uint8_t this_len; + uint8_t started = 0; + uint8_t fifo_space; + + encode_len = ao_fec_encode(d, size, encode); + + ao_radio_get(encode_len); + + started = 0; + fifo_space = CC1120_FIFO_SIZE; + while (encode_len) { + this_len = encode_len; + + if (this_len > fifo_space) { + this_len = fifo_space; + ao_radio_set_mode(AO_RADIO_MODE_PACKET_TX_BUF); + } else { + ao_radio_set_mode(AO_RADIO_MODE_PACKET_TX_FINISH); + } - ao_radio_get(size); - ao_radio_wake = 0; - ao_radio_fifo_write(d, size); - ao_exti_enable(&AO_CC1120_INT_PORT, AO_CC1120_INT_PIN); - ao_radio_strobe(CC1120_STX); - cli(); - for (;;) { - if (ao_radio_wake) { - marc_status = ao_radio_marc_status(); - if (marc_status != CC1120_MARC_STATUS1_NO_FAILURE) - break; + ao_radio_fifo_write(e, this_len); + e += this_len; + encode_len -= this_len; + + if (!started) { + ao_radio_start_tx(); + started = 1; + } else { + 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); + } + ao_radio_put(); +} + +#define AO_RADIO_MAX_RECV 90 + +static uint8_t rx_data[(AO_RADIO_MAX_RECV + 4) * 2 * 8]; +static uint16_t rx_data_count; +static uint16_t rx_data_consumed; +static uint16_t rx_data_cur; +static uint8_t rx_ignore; +static uint8_t rx_waiting; + +#if AO_PROFILE +static uint32_t rx_start_tick, rx_packet_tick, rx_done_tick, rx_last_done_tick; + +uint32_t ao_rx_start_tick, ao_rx_packet_tick, ao_rx_done_tick, ao_rx_last_done_tick; + +#include +#endif + +static void +ao_radio_rx_isr(void) +{ + uint8_t d; + + d = stm_spi2.dr; + stm_spi2.dr = 0; + if (rx_ignore == 0) { + if (rx_data_cur >= rx_data_count) + ao_exti_disable(AO_CC1120_INT_PORT, AO_CC1120_INT_PIN); + else + rx_data[rx_data_cur++] = d; + if (rx_waiting && rx_data_cur - rx_data_consumed >= AO_FEC_DECODE_BLOCK) { +#if AO_PROFILE + if (!rx_packet_tick) + rx_packet_tick = ao_profile_tick(); + if (rx_data_cur < rx_data_count) + return; +#endif + rx_waiting = 0; + ao_wakeup(&ao_radio_wake); } + } else { + --rx_ignore; + } +} + +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(); - ao_radio_put(); + if (ao_radio_abort) + return 0; + rx_data_consumed += AO_FEC_DECODE_BLOCK; +#if AO_PROFILE + return rx_data_cur - rx_data_consumed; +#endif + return AO_FEC_DECODE_BLOCK; } uint8_t ao_radio_recv(__xdata void *d, uint8_t size) { - uint8_t marc_status = CC1120_MARC_STATUS1_NO_FAILURE; + uint8_t len; + uint16_t i; + uint8_t rssi; + uint8_t ret; + static int been_here = 0; + + size -= 2; /* status bytes */ + if (size > AO_RADIO_MAX_RECV) { + ao_delay(AO_SEC_TO_TICKS(1)); + return 0; + } +#if AO_PROFILE + rx_start_tick = ao_profile_tick(); + rx_packet_tick = 0; +#endif + len = size + 2; /* CRC bytes */ + len += 1 + ~(len & 1); /* 1 or two pad bytes */ + len *= 2; /* 1/2 rate convolution */ + rx_data_count = len * 8; /* bytes to bits */ + rx_data_cur = 0; + rx_data_consumed = 0; + rx_ignore = 2; + ao_radio_abort = 0; + ao_radio_in_recv = 1; /* configure interrupt pin */ - ao_radio_get(size); + ao_radio_get(len); + ao_radio_set_mode(AO_RADIO_MODE_PACKET_RX); + ao_radio_wake = 0; - ao_exti_enable(&AO_CC1120_INT_PORT, AO_CC1120_INT_PIN); - ao_radio_strobe(CC1120_SRX); - cli(); - for (;;) { - if (ao_radio_abort) - break; - if (ao_radio_wake) { - marc_status = ao_radio_marc_status(); - if (marc_status != CC1120_MARC_STATUS1_NO_FAILURE) - break; - ao_radio_wake = 0; - } - ao_sleep(&ao_radio_wake); - } - sei(); - if (marc_status != CC1120_MARC_STATUS1_RX_FINISHED) - ao_radio_fifo_read(d, size); - ao_radio_put(); - return marc_status == CC1120_MARC_STATUS1_RX_FINISHED; -} -/* - * Packet deviation is 20.5kHz - * - * fdev = fosc >> 24 * (256 + dev_m) << dev_e - * - * 32e6Hz / (2 ** 24) * (256 + 80) * (2 ** 5) = 20508Hz - */ + stm_spi2.cr2 = 0; -#define PACKET_DEV_E 5 -#define PACKET_DEV_M 80 + /* clear any RXNE */ + (void) stm_spi2.dr; -/* - * For our packet data, set the symbol rate to 38360 Baud - * - * (2**20 - DATARATE_M) * 2 ** DATARATE_E - * Rdata = -------------------------------------- * fosc - * 2 ** 39 - * - * DATARATE_M = 405002 - * DATARATE_E = 10 - * - * To make the tone last for 200ms, we need 2000 * .2 = 400 bits or 50 bytes - */ -#define PACKET_DRATE_E 10 -#define PACKET_DRATE_M 405002 + 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); -static const uint16_t packet_setup[] = { - CC1120_DEVIATION_M, PACKET_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) | - (PACKET_DEV_E << CC1120_MODCFG_DEV_E_DEV_E)), - CC1120_DRATE2, ((PACKET_DRATE_E << CC1120_DRATE2_DATARATE_E) | - (((PACKET_DRATE_M >> 16) & CC1120_DRATE2_DATARATE_M_19_16_MASK) << CC1120_DRATE2_DATARATE_M_19_16)), - CC1120_DRATE1, ((PACKET_DRATE_M >> 8) & 0xff), - CC1120_DRATE0, ((PACKET_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, ((1 << 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) | - (1 << CC1120_PKT_CFG1_APPEND_STATUS)), -}; + ao_radio_strobe(CC1120_SRX); -void -ao_radio_set_packet(void) -{ - int i; + ao_radio_burst_read_start(CC1120_SOFT_RX_DATA_OUT); - for (i = 0; i < sizeof (rdf_setup) / sizeof (rdf_setup[0]); i += 2) - ao_radio_reg_write(packet_setup[i], packet_setup[i+1]); -} + ret = ao_fec_decode(rx_data, rx_data_count, d, size + 2, ao_radio_rx_wait); -void -ao_radio_idle(void) -{ - for (;;) { - uint8_t state = ao_radio_strobe(CC1120_SIDLE); - if ((state >> CC1120_STATUS_STATE) == CC1120_STATUS_STATE_IDLE) - break; - } - ao_radio_strobe(CC1120_SFTX); - ao_radio_strobe(CC1120_SFRX); -} + ao_radio_burst_read_stop(); -static const uint16_t radio_setup[] = { -#include "ao_cc1120_CC1120.h" -}; + ao_radio_strobe(CC1120_SIDLE); -static uint8_t ao_radio_configured = 0; + /* Convert from 'real' rssi to cc1111-style values */ -static void -ao_radio_isr(void) -{ - ao_exti_disable(&AO_CC1120_INT_PORT, AO_CC1120_INT_PIN); - ao_radio_wake = 1; - ao_wakeup(&ao_radio_wake); -} + rssi = (((int8_t) ao_radio_reg_read(CC1120_RSSI1)) + 74) * 2; -static void -ao_radio_setup(void) -{ - int i; + ao_radio_put(); - ao_radio_strobe(CC1120_SRES); + /* Store the received RSSI value; the crc-OK byte is already done */ - for (i = 0; i < sizeof (radio_setup) / sizeof (radio_setup[0]); i += 2) - ao_radio_reg_write(radio_setup[i], radio_setup[i+1]); + ((uint8_t *) d)[size] = (uint8_t) rssi; - /* Enable marc status interrupt on gpio 2 pin */ - ao_radio_reg_write(CC1120_IOCFG2, CC1120_IOCFG_GPIO_CFG_MARC_MCU_WAKEUP); + ao_radio_in_recv = 0; - /* 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_radio_isr); + if (ao_radio_abort) + ao_delay(1); - ao_radio_set_packet(); - ao_radio_configured = 1; -} +#if AO_PROFILE + rx_last_done_tick = rx_done_tick; + rx_done_tick = ao_profile_tick(); -void -ao_radio_get(uint8_t len) -{ - ao_mutex_get(&ao_radio_mutex); - if (!ao_radio_configured) - ao_radio_setup(); - ao_radio_reg_write(CC1120_FREQ2, ao_config.radio_setting >> 16); - ao_radio_reg_write(CC1120_FREQ1, ao_config.radio_setting >> 8); - ao_radio_reg_write(CC1120_FREQ0, ao_config.radio_setting); - ao_radio_reg_write(CC1120_PKT_LEN, len); + ao_rx_start_tick = rx_start_tick; + ao_rx_packet_tick = rx_packet_tick; + ao_rx_done_tick = rx_done_tick; + ao_rx_last_done_tick = rx_last_done_tick; +#endif + + return ret; } + #if CC1120_DEBUG static char *cc1120_state_name[] = { [CC1120_STATUS_STATE_IDLE] = "IDLE", @@ -716,7 +932,40 @@ static void ao_radio_show(void) { } static void ao_radio_beep(void) { - ao_radio_rdf(120); + ao_radio_rdf(RDF_PACKET_LEN); +} + +static void ao_radio_packet(void) { + static const uint8_t packet[] = { +#if 1 + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, +#else + 3, 1, 2, 3 +#endif + }; + + ao_radio_send(packet, sizeof (packet)); +} + +void +ao_radio_test_recv() +{ + uint8_t bytes[34]; + uint8_t b; + + if (ao_radio_recv(bytes, 34)) { + if (bytes[33] & 0x80) + printf ("CRC OK"); + else + printf ("CRC BAD"); + printf (" RSSI %d", (int16_t) ((int8_t) bytes[32] >> 1) - 74); + for (b = 0; b < 32; b++) + printf (" %02x", bytes[b]); + printf ("\n"); + } } #endif @@ -726,6 +975,8 @@ static const struct ao_cmds ao_radio_cmds[] = { #if CC1120_DEBUG { 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_test_recv, "q\0Recv a test packet" }, #endif { 0, NULL } }; @@ -733,8 +984,25 @@ static const struct ao_cmds ao_radio_cmds[] = { void ao_radio_init(void) { + int i; + ao_radio_configured = 0; ao_spi_init_cs (AO_CC1120_SPI_CS_PORT, (1 << AO_CC1120_SPI_CS_PIN)); + 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) + break; + } + AO_CC1120_SPI_CS_PORT->bsrr = (1 << AO_CC1120_SPI_CS_PIN); + if (i == 10000) + ao_panic(AO_PANIC_SELF_TEST); + + /* 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_cmd_register(&ao_radio_cmds[0]); }