From 0a416aba5b94444c89eb44ea2e1c2597ff4c7409 Mon Sep 17 00:00:00 2001 From: David Barksdale Date: Wed, 3 Aug 2016 16:49:40 -0500 Subject: This is completely broken --- laser-tag software/main.c | 7 +++ laser-tag software/radio.c | 144 ++++++++++++++++++++++++++++++++++++++++----- laser-tag software/radio.h | 3 +- 3 files changed, 137 insertions(+), 17 deletions(-) diff --git a/laser-tag software/main.c b/laser-tag software/main.c index cccd32f..9d2273e 100644 --- a/laser-tag software/main.c +++ b/laser-tag software/main.c @@ -52,6 +52,7 @@ static int current_image = 0; static volatile int cue_next_image = 0; static uint32_t laser_pulse_length = 32; +static bool have_radio = false; //////////////////////////// @@ -322,6 +323,8 @@ static void lptmr_call_back(void) foo = (foo + 1) % 3; } LPUART_DRV_SendData(1, txBuff, laser_pulse_length); + /* pew the radio! */ + radio_send_test(); } /* countdown to turn off LED */ @@ -606,6 +609,7 @@ int main (void) ret = radio_init(); debug_printf("radio_init returned %d\r\n", ret); if (0 == ret) { + have_radio = true; led(0x22, 0x00, 0x22); } @@ -614,6 +618,9 @@ int main (void) /* We're done, everything else is triggered through interrupts */ for(;;) { + if (have_radio) { + radio_idle(); + } if (cue_next_image) { int old_image = current_image; current_image = (current_image + 1) % IMAGE_COUNT; diff --git a/laser-tag software/radio.c b/laser-tag software/radio.c index c78ec76..bbbb68a 100644 --- a/laser-tag software/radio.c +++ b/laser-tag software/radio.c @@ -11,6 +11,7 @@ static const gpio_output_pin_user_config_t pinReset = { static const gpio_input_pin_user_config_t pinDIO0 = { .pinName = GPIO_MAKE_PIN(GPIOC_IDX, 9), + .config.interrupt = kPortIntRisingEdge, //kPortIntLogicOne, }; static const gpio_output_pin_user_config_t pinDIO2 = { @@ -105,6 +106,7 @@ static const struct { }; static spi_master_state_t spiState; +static volatile bool irq_pending; static void delay(uint32_t ms) { @@ -121,15 +123,20 @@ static spi_status_t SPI_Transfer(const uint8_t *tx, uint8_t *rx, size_t count) rc = SPI_DRV_MasterTransfer(0, NULL, tx, rx, count); if (rc != kStatus_SPI_Success) { + debug_printf("SPI_Transfer failed badly! %d\r\n", rc); return rc; } int i, timeout = count * 2; for (i = 0; i < timeout; ++i) { - rc = SPI_DRV_MasterGetTransferStatus(0, NULL); + uint32_t count; + rc = SPI_DRV_MasterGetTransferStatus(0, &count); if (rc == kStatus_SPI_Success) { return rc; } + debug_printf("%d bytes transfered so far\r\n", count); } + debug_printf("SPI_Transfer timed out! %d\r\n", rc); + SPI_DRV_MasterAbortTransfer(0); return rc; } @@ -149,15 +156,21 @@ static void write_reg(uint8_t reg, uint8_t val) SPI_Transfer(tx, NULL, 2); } +void set_mode(uint8_t mode) +{ + uint8_t reg = read_reg(REG_OPMODE); + + write_reg(REG_OPMODE, (reg & 0xE3) | mode); +} + int radio_init() { PORT_HAL_SetMuxMode(g_portBase[GPIOC_IDX], 4, kPortMuxAlt2); PORT_HAL_SetMuxMode(g_portBase[GPIOC_IDX], 5, kPortMuxAlt2); PORT_HAL_SetMuxMode(g_portBase[GPIOC_IDX], 6, kPortMuxAlt2); PORT_HAL_SetMuxMode(g_portBase[GPIOC_IDX], 7, kPortMuxAlt2); - PORT_HAL_SetMuxMode(g_portBase[GPIOC_IDX], 8, kPortMuxAsGpio); - //PORT_HAL_SetMuxMode(g_portBase[GPIOC_IDX], 10, kPortMuxAsGpio); GPIO_DRV_OutputPinInit(&pinReset); + GPIO_DRV_InputPinInit(&pinDIO0); //GPIO_DRV_OutputPinInit(&pinDIO2); delay(1); GPIO_DRV_WritePinOutput(pinReset.pinName, 0); @@ -181,27 +194,126 @@ int radio_init() for (i = 0; i < sizeof config / sizeof *config; ++i) { write_reg(config[i].reg, config[i].val); } + debug_printf("setting radio into receive mode...\r\n"); + set_mode(RF_OPMODE_RECEIVER); + debug_printf("waiting for radio to enter receive mode...\r\n"); + while (true) { + uint8_t reg = read_reg(REG_IRQFLAGS1); + + debug_printf("IRQ Flags 1 = 0x%02X\r\n", reg); + if (reg & RF_IRQFLAGS1_MODEREADY) { + break; + } + } + debug_printf("radio receiving...\r\n"); + SPI_DRV_MasterDeinit(0); return 0; } -void set_mode(uint8_t mode) +void radio_send_test() { - uint8_t reg = read_reg(REG_OPMODE); + static uint8_t pkt[] = { + 0x03, // data length + 0xff, 0xff, // to address + 0xff, 0xff, // from address + 'p', 'e', 'w', // data + }; + int i; - write_reg(REG_OPMODE, (reg & 0xE3) | mode); + SPI_DRV_MasterInit(0, &spiState); + uint32_t calculatedBaudRate; + SPI_DRV_MasterConfigureBus(0, &spiConfig, &calculatedBaudRate); + debug_printf("Putting radio in sandby\r\n"); + set_mode(RF_OPMODE_STANDBY); + debug_printf("Waiting for sandby\r\n"); + while (true) { + uint8_t reg = read_reg(REG_IRQFLAGS1); + + debug_printf("IRQ Flags 1 = 0x%02X\r\n", reg); + if (reg & RF_IRQFLAGS1_MODEREADY) { + break; + } + } + //while ((read_reg(REG_IRQFLAGS1) & RF_IRQFLAGS1_MODEREADY) == 0); + debug_printf("Radio standing by\r\n"); + write_reg(REG_DIOMAPPING1, RF_DIOMAPPING1_DIO0_00); + debug_printf("Filling FIFO with %d bytes\r\n", sizeof pkt); + for (i = 0; i < sizeof pkt; ++i) { + write_reg(REG_FIFO, pkt[i]); + } + debug_printf("Transmitting packet!\r\n"); + set_mode(RF_OPMODE_TRANSMITTER); + SPI_DRV_MasterDeinit(0); } -void radio_test(void) +void handle_rx() { + uint8_t pkt[66]; + int i; + + set_mode(RF_OPMODE_STANDBY); + debug_printf("RX: "); + for (i = 0; i < 66 && read_reg(REG_IRQFLAGS2) & RF_IRQFLAGS2_FIFONOTEMPTY; + ++i) { + pkt[i] = read_reg(REG_FIFO); + debug_printf("%02X ", pkt[i]); + } + debug_printf("\r\n"); + if (read_reg(REG_IRQFLAGS2) & RF_IRQFLAGS2_PAYLOADREADY) { + debug_printf("RX interrupt still active!\r\n"); + /* I guess try to clear it */ + write_reg(REG_PACKETCONFIG2, + read_reg(REG_PACKETCONFIG2) | RF_PACKET2_RXRESTART); + /* Or empty manually? */ + while (read_reg(REG_IRQFLAGS2) & RF_IRQFLAGS2_PAYLOADREADY) { + read_reg(REG_FIFO); + } + } + PORT_HAL_SetPinIntMode(g_portBase[GPIO_EXTRACT_PORT(pinDIO0.pinName)], + GPIO_EXTRACT_PIN(pinDIO0.pinName), kPortIntRisingEdge); // kPortIntLogicOne); + set_mode(RF_OPMODE_RECEIVER); +} + +void handle_tx() { + debug_printf("Packet sent!\r\n"); + set_mode(RF_OPMODE_STANDBY); + write_reg(REG_DIOMAPPING1, RF_DIOMAPPING1_DIO0_01); + PORT_HAL_SetPinIntMode(g_portBase[GPIO_EXTRACT_PORT(pinDIO0.pinName)], + GPIO_EXTRACT_PIN(pinDIO0.pinName), kPortIntRisingEdge); // kPortIntLogicOne); + set_mode(RF_OPMODE_RECEIVER); +} + +void PORTC_IRQHandler(void) { - //write_reg(REG_DATAMODUL, RF_DATAMODUL_DATAMODE_CONTINUOUSNOBSYNC); - set_mode(RF_OPMODE_TRANSMITTER); - /* - bool a = false; - while (true) { - GPIO_DRV_WritePinOutput(pinDIO2.pinName, a); - a = !a; - delay(100); - }*/ + /* silence! we'll get to you later */ + PORT_HAL_SetPinIntMode(g_portBase[GPIO_EXTRACT_PORT(pinDIO0.pinName)], + GPIO_EXTRACT_PIN(pinDIO0.pinName), 0); + /* Clear interrupt flag.*/ + PORT_HAL_ClearPortIntFlag(PORTC_BASE_PTR); + irq_pending = true; + //debug_printf("PORTC interrupt!\n"); +} + +void radio_idle() { + uint8_t reg; + + if (!irq_pending) { + return; + } + debug_printf("Handling radio interrupt\r\n"); + irq_pending = false; + SPI_DRV_MasterInit(0, &spiState); + uint32_t calculatedBaudRate; + SPI_DRV_MasterConfigureBus(0, &spiConfig, &calculatedBaudRate); + reg = read_reg(REG_IRQFLAGS2); + /* Do we have a packet? */ + if (reg & RF_IRQFLAGS2_PAYLOADREADY) { + handle_rx(); + } + /* Did we finish sending a packet? */ + if (reg & RF_IRQFLAGS2_PACKETSENT) { + handle_tx(); + } + SPI_DRV_MasterDeinit(0); } /* vim: set expandtab ts=4 sw=4: */ diff --git a/laser-tag software/radio.h b/laser-tag software/radio.h index 3f999a0..ced6ebc 100644 --- a/laser-tag software/radio.h +++ b/laser-tag software/radio.h @@ -2,6 +2,7 @@ #define _RADIO_H_ int radio_init(); -void radio_test(); +void radio_send_test(); +void radio_idle(); #endif -- cgit v1.2.3-18-g5258