X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fdrivers%2Fao_cc1120.c;h=a1d78d9ca13aa331ca07ac061686415f2fc2509e;hb=e09e35471e788b88909ff01037fb8e0e4eabcd7d;hp=272371d0d7dce966f29e1972422994a9d132ad00;hpb=1489263b895a2a825e29d0560c9b1dbba8a3f431;p=fw%2Faltos diff --git a/src/drivers/ao_cc1120.c b/src/drivers/ao_cc1120.c index 272371d0..a1d78d9c 100644 --- a/src/drivers/ao_cc1120.c +++ b/src/drivers/ao_cc1120.c @@ -19,13 +19,15 @@ #include #include -uint8_t ao_radio_done; +uint8_t ao_radio_wake; uint8_t ao_radio_mutex; uint8_t ao_radio_abort; #define CC1120_DEBUG 1 -uint32_t ao_radio_cal = 1186611; +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_deselect() ao_spi_put_mask(AO_CC1120_SPI_CS_PORT,(1 << AO_CC1120_SPI_CS_PIN),AO_CC1120_SPI_BUS) @@ -41,7 +43,7 @@ ao_radio_reg_read(uint16_t addr) uint8_t d; #if CC1120_DEBUG - printf("ao_radio_reg_read (%04x): ", addr); flush(); + printf("\t\tao_radio_reg_read (%04x): ", addr); flush(); #endif if (CC1120_IS_EXTENDED(addr)) { data[0] = ((1 << CC1120_READ) | @@ -72,16 +74,16 @@ ao_radio_reg_write(uint16_t addr, uint8_t value) uint8_t d; #if CC1120_DEBUG - printf("ao_radio_reg_write (%04x): %02x\n", addr, value); + printf("\t\tao_radio_reg_write (%04x): %02x\n", addr, value); #endif if (CC1120_IS_EXTENDED(addr)) { - data[0] = ((1 << CC1120_READ) | + data[0] = ((0 << CC1120_READ) | (0 << CC1120_BURST) | CC1120_EXTENDED); data[1] = addr; d = 2; } else { - data[0] = ((1 << CC1120_READ) | + data[0] = ((0 << CC1120_READ) | (0 << CC1120_BURST) | addr); d = 1; @@ -97,9 +99,15 @@ ao_radio_strobe(uint8_t addr) { uint8_t in; +#if CC1120_DEBUG + 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); flush(); +#endif return in; } @@ -141,10 +149,12 @@ 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; } @@ -158,32 +168,142 @@ void ao_radio_recv_abort(void) { ao_radio_abort = 1; - ao_wakeup(&ao_radio_done); + ao_wakeup(&ao_radio_wake); } #define ao_radio_rdf_value 0x55 -static const uint16_t rdf_setup[] = { +/* + * RDF deviation is 5kHz + * + * fdev = fosc >> 24 * (256 + dev_m) << dev_e + * + * 32e6Hz / (2 ** 24) * (256 + 71) * (2 ** 3) = 4989 + */ + +#define RDF_DEV_E 3 +#define RDF_DEV_M 71 +#define RDF_PACKET_LEN 50 + +/* + * For our RDF beacon, set the symbol rate to 2kBaud (for a 1kHz tone) + * + * (2**20 - DATARATE_M) * 2 ** DATARATE_E + * Rdata = -------------------------------------- * fosc + * 2 ** 39 + * + * DATARATE_M = 511705 + * DATARATE_E = 6 + * + * To make the tone last for 200ms, we need 2000 * .2 = 400 bits or 50 bytes + */ +#define RDF_DRATE_E 5 +#define RDF_DRATE_M 25166 +#define RDF_PACKET_LEN 50 + +static const uint16_t rdf_setup[] = { + CC1120_DEVIATION_M, RDF_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) | + (RDF_DEV_E << CC1120_MODCFG_DEV_E_DEV_E)), + CC1120_DRATE2, ((RDF_DRATE_E << CC1120_DRATE2_DATARATE_E) | + (((RDF_DRATE_M >> 16) & CC1120_DRATE2_DATARATE_M_19_16_MASK) << CC1120_DRATE2_DATARATE_M_19_16)), + CC1120_DRATE1, ((RDF_DRATE_M >> 8) & 0xff), + CC1120_DRATE0, ((RDF_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)), }; +#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_marc_status(void) +{ + return ao_radio_reg_read(CC1120_MARC_STATUS1); +} + +static uint8_t +ao_radio_tx_done(void) +{ + return ao_radio_marc_status() == CC1120_MARC_STATUS1_TX_FINISHED; +} + +static uint8_t +ao_radio_rx_done(void) +{ + return ao_radio_marc_status() == CC1120_MARC_STATUS1_RX_FINISHED; +} + void ao_radio_rdf(uint8_t len) { int i; - ao_radio_abort = 0; ao_radio_get(len); - ao_radio_done = 0; + 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_fifo_write_fixed(ao_radio_rdf_value, len); + +#if 0 + int_pin ("Before CFG"); ao_radio_reg_write(CC1120_IOCFG2, CC1120_IOCFG_GPIO_CFG_RX0TX1_CFG); - ao_exti_enable(&AO_CC1120_INT_PORT, AO_CC1120_INT_PIN); + int_pin ("After CFG"); +#endif + + ao_radio_fifo_write_fixed(ao_radio_rdf_value, len); + + ao_radio_reg_write(CC1120_PKT_LEN, len); + + printf ("packet length: %d\n", ao_radio_reg_read(CC1120_PKT_LEN)); + ao_radio_strobe(CC1120_STX); + + for (i = 0; i < 20; i++) { + printf ("%d ", i); flush(); + printf ("Status %02x ", ao_radio_status()); flush(); + printf ("num_tx_bytes %d ", ao_radio_reg_read(CC1120_NUM_TXBYTES)); flush(); + printf ("marc status %x\n", ao_radio_marc_status()); flush(); + ao_delay(AO_MS_TO_TICKS(50)); + } + +#if 0 + ao_exti_enable(&AO_CC1120_INT_PORT, AO_CC1120_INT_PIN); + int_pin ("After strobe"); + ao_delay(AO_MS_TO_TICKS(100)); + int_pin ("After delay"); cli(); - while (!ao_radio_done) - ao_sleep(&ao_radio_done); + 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 + ao_sleep(&ao_radio_wake); +#endif + } sei(); +#endif + printf ("num_tx_bytes %d marc status %x\n", + ao_radio_reg_read(CC1120_NUM_TXBYTES), + ao_radio_marc_status()); +#if 0 + if (!ao_radio_tx_done()) + ao_radio_idle(); +#endif ao_radio_set_packet(); ao_radio_put(); } @@ -191,6 +311,8 @@ ao_radio_rdf(uint8_t len) void ao_radio_rdf_abort(void) { + ao_radio_abort = 1; + ao_wakeup(&ao_radio_wake); } static void @@ -213,6 +335,14 @@ ao_radio_test(void) #endif ao_radio_get(0xff); ao_radio_strobe(CC1120_STX); +#if CC1120_DEBUG + { int t; + for (t = 0; t < 10; t++) { + printf ("status: %02x\n", ao_radio_status()); + ao_delay(AO_MS_TO_TICKS(100)); + } + } +#endif radio_on = 1; } if (mode == 3) { @@ -233,15 +363,23 @@ ao_radio_test(void) void ao_radio_send(void *d, uint8_t size) { + uint8_t marc_status; + ao_radio_get(size); - ao_radio_done = 0; + ao_radio_wake = 0; ao_radio_fifo_write(d, size); - ao_radio_reg_write(CC1120_IOCFG2, CC1120_IOCFG_GPIO_CFG_RX0TX1_CFG); ao_exti_enable(&AO_CC1120_INT_PORT, AO_CC1120_INT_PIN); ao_radio_strobe(CC1120_STX); cli(); - while (!ao_radio_done) - ao_sleep(&ao_radio_done); + for (;;) { + 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(); ao_radio_put(); } @@ -249,23 +387,77 @@ ao_radio_send(void *d, uint8_t size) uint8_t ao_radio_recv(__xdata void *d, uint8_t size) { + uint8_t marc_status = CC1120_MARC_STATUS1_NO_FAILURE; + /* configure interrupt pin */ ao_radio_get(size); - ao_radio_done = 0; - ao_radio_reg_write(CC1120_IOCFG2, CC1120_IOCFG_GPIO_CFG_RXFIFO_THR_PKT); + ao_radio_wake = 0; ao_exti_enable(&AO_CC1120_INT_PORT, AO_CC1120_INT_PIN); ao_radio_strobe(CC1120_SRX); cli(); - while (!ao_radio_done && !ao_radio_abort) - ao_sleep(&ao_radio_done); + 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 (ao_radio_done) + if (marc_status != CC1120_MARC_STATUS1_RX_FINISHED) ao_radio_fifo_read(d, size); ao_radio_put(); - return 0; + 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 + */ + +#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, ((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)), + 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)), }; void @@ -285,6 +477,8 @@ ao_radio_idle(void) if ((state >> CC1120_STATUS_STATE) == CC1120_STATUS_STATE_IDLE) break; } + ao_radio_strobe(CC1120_SFTX); + ao_radio_strobe(CC1120_SFRX); } static const uint16_t radio_setup[] = { @@ -297,8 +491,8 @@ static void ao_radio_isr(void) { ao_exti_disable(&AO_CC1120_INT_PORT, AO_CC1120_INT_PIN); - ao_radio_done = 1; - ao_wakeup(&ao_radio_done); + ao_radio_wake = 1; + ao_wakeup(&ao_radio_wake); } static void @@ -306,15 +500,17 @@ ao_radio_setup(void) { 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]); - /* Disable GPIO2 pin (radio_int) */ - ao_radio_reg_write(CC1120_IOCFG2, CC1120_IOCFG_GPIO_CFG_HIGHZ); + /* Enable marc status interrupt on gpio 2 pin */ + ao_radio_reg_write(CC1120_IOCFG2, CC1120_IOCFG_GPIO_CFG_MARC_MCU_WAKEUP); /* 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_RISING, ao_radio_isr); +// 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); ao_radio_set_packet(); ao_radio_configured = 1; @@ -326,6 +522,9 @@ 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); } @@ -534,17 +733,24 @@ static void ao_radio_show(void) { 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()); 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); ao_radio_put(); } + +static void ao_radio_beep(void) { + ao_radio_rdf(120); +} + #endif static const struct ao_cmds ao_radio_cmds[] = { { ao_radio_test, "C <1 start, 0 stop, none both>\0Radio carrier test" }, #if CC1120_DEBUG { ao_radio_show, "R\0Show CC1120 status" }, + { ao_radio_beep, "b\0Emit an RDF beacon" }, #endif { 0, NULL } }; @@ -552,8 +758,18 @@ 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); ao_cmd_register(&ao_radio_cmds[0]); }