void set_transceiver_mode(const transceiver_mode_t new_transceiver_mode) {
baseband_streaming_disable(&sgpio_config);
usb_endpoint_disable(&usb_endpoint_bulk_in);
usb_endpoint_disable(&usb_endpoint_bulk_out);
_transceiver_mode = new_transceiver_mode;
if( _transceiver_mode == TRANSCEIVER_MODE_RX ) {
led_off(LED3);
led_on(LED2);
usb_endpoint_init(&usb_endpoint_bulk_in);
rf_path_set_direction(&rf_path, RF_PATH_DIRECTION_RX);
vector_table.irq[NVIC_SGPIO_IRQ] = sgpio_isr_rx;
} else if (_transceiver_mode == TRANSCEIVER_MODE_TX) {
led_off(LED2);
led_on(LED3);
usb_endpoint_init(&usb_endpoint_bulk_out);
rf_path_set_direction(&rf_path, RF_PATH_DIRECTION_TX);
vector_table.irq[NVIC_SGPIO_IRQ] = sgpio_isr_tx;
} else {
led_off(LED2);
led_off(LED3);
rf_path_set_direction(&rf_path, RF_PATH_DIRECTION_OFF);
vector_table.irq[NVIC_SGPIO_IRQ] = sgpio_isr_rx;
}
if( _transceiver_mode != TRANSCEIVER_MODE_OFF ) {
si5351c_activate_best_clock_source(&clock_gen);
baseband_streaming_enable(&sgpio_config);
}
}
/*
M0 Core Manage USB
*/
int main(void)
{
iap_cmd_res_t iap_cmd_res;
usb_descriptor_serial_number_t serial_number;
airspy_usb_req_init();
usb_set_configuration_changed_cb(usb_configuration_changed);
usb_peripheral_reset();
usb_device_init(0, &usb_device);
usb_queue_init(&usb_endpoint_control_out_queue);
usb_queue_init(&usb_endpoint_control_in_queue);
usb_queue_init(&usb_endpoint_bulk_out_queue);
usb_queue_init(&usb_endpoint_bulk_in_queue);
usb_endpoint_init(&usb_endpoint_control_out);
usb_endpoint_init(&usb_endpoint_control_in);
/* Read IAP Serial Number Identification */
iap_cmd_res.cmd_param.command_code = IAP_CMD_READ_SERIAL_NO;
iap_cmd_call(&iap_cmd_res);
if(iap_cmd_res.status_res.status_ret == CMD_SUCCESS)
{
/* Only retrieve 2 last 32bits for Serial Number */
serial_number.sn_32b[0] = iap_cmd_res.status_res.iap_result[2];
serial_number.sn_32b[1] = iap_cmd_res.status_res.iap_result[3];
usb_descriptor_fill_string_serial_number(serial_number);
}
nvic_set_priority(NVIC_USB0_IRQ, 255);
nvic_set_priority(NVIC_M4CORE_IRQ, 1);
nvic_enable_irq(NVIC_M4CORE_IRQ);
usb_run(&usb_device);
while(true)
{
signal_wfe();
if( (get_usb_buffer_offset() >= 16384) &&
(phase == 1) )
{
usb_transfer_schedule_block(&usb_endpoint_bulk_in, &usb_bulk_buffer[0x0000], 0x4000, NULL, NULL);
phase = 0;
}
if( (get_usb_buffer_offset() < 16384) &&
(phase == 0) )
{
usb_transfer_schedule_block(&usb_endpoint_bulk_in, &usb_bulk_buffer[0x4000], 0x4000, NULL, NULL);
phase = 1;
}
}
}
void usb_configuration_changed(
usb_device_t* const device
) {
if (device->configuration == 0) {
usb_endpoint_disable(&usb_endpoint_bulk_cmd_in);
usb_endpoint_disable(&usb_endpoint_bulk_cmd_out);
usb_endpoint_disable(&usb_endpoint_bulk_data_in);
} else {
usb_endpoint_init(&usb_endpoint_bulk_cmd_out);
usb_endpoint_init(&usb_endpoint_bulk_cmd_in);
usb_endpoint_init(&usb_endpoint_bulk_data_in);
start_command_transfer();
}
}
void usb_init(void)
{
usb_queue_init(&usb_endpoint_control_in_queue);
usb_queue_init(&usb_endpoint_control_out_queue);
usb_queue_init(&usb_endpoint_bulk_cmd_in_queue);
usb_queue_init(&usb_endpoint_bulk_cmd_out_queue);
usb_queue_init(&usb_endpoint_bulk_data_in_queue);
usb_set_configuration_changed_cb(usb_configuration_changed);
usb_peripheral_reset();
usb_device_init(0, &usb_device);
usb_endpoint_init(&usb_endpoint_control_out);
usb_endpoint_init(&usb_endpoint_control_in);
nvic_set_priority(NVIC_USB0_IRQ, 255);
usb_run(&usb_device);
}
void set_transceiver_mode(const transceiver_mode_t new_transceiver_mode) {
baseband_streaming_disable();
transceiver_mode = new_transceiver_mode;
usb_init_buffers_bulk();
if( transceiver_mode == TRANSCEIVER_MODE_RX ) {
gpio_clear(PORT_LED1_3, PIN_LED3);
gpio_set(PORT_LED1_3, PIN_LED2);
usb_endpoint_init(&usb_endpoint_bulk_in);
rffc5071_rx(switchctrl);
//rffc5071_set_frequency(1700, 0); // 2600 MHz IF - 1700 MHz LO = 900 MHz RF
max2837_start();
max2837_rx();
} else if (transceiver_mode == TRANSCEIVER_MODE_TX) {
gpio_clear(PORT_LED1_3, PIN_LED2);
gpio_set(PORT_LED1_3, PIN_LED3);
usb_endpoint_init(&usb_endpoint_bulk_out);
rffc5071_tx(switchctrl);
//rffc5071_set_frequency(1700, 0); // 2600 MHz IF - 1700 MHz LO = 900 MHz RF
max2837_start();
max2837_tx();
} else {
gpio_clear(PORT_LED1_3, PIN_LED2);
gpio_clear(PORT_LED1_3, PIN_LED3);
max2837_stop();
return;
}
sgpio_configure(transceiver_mode, true);
nvic_set_priority(NVIC_SGPIO_IRQ, 0);
nvic_enable_irq(NVIC_SGPIO_IRQ);
SGPIO_SET_EN_1 = (1 << SGPIO_SLICE_A);
sgpio_cpld_stream_enable();
}
void set_receiver_mode(const receiver_mode_t new_receiver_mode)
{
usb_streaming_disable();
if( new_receiver_mode == RECEIVER_MODE_RX )
{
usb_endpoint_init(&usb_endpoint_bulk_in);
ADCHS_start(sample_rate_conf_no);
}else
{
ADCHS_stop(sample_rate_conf_no);
}
receiver_mode = new_receiver_mode;
}
usb_request_status_t usb_vendor_request_set_transceiver_mode(
usb_endpoint_t* const endpoint,
const usb_transfer_stage_t stage)
{
if( stage == USB_TRANSFER_STAGE_SETUP ) {
switch( endpoint->setup.value ) {
case TRANSCEIVER_MODE_OFF:
case TRANSCEIVER_MODE_RX:
case TRANSCEIVER_MODE_TX:
set_transceiver_mode(endpoint->setup.value);
usb_transfer_schedule_ack(endpoint->in);
return USB_REQUEST_STATUS_OK;
case TRANSCEIVER_MODE_CPLD_UPDATE:
usb_endpoint_init(&usb_endpoint_bulk_out);
start_cpld_update = true;
usb_transfer_schedule_ack(endpoint->in);
return USB_REQUEST_STATUS_OK;
default:
return USB_REQUEST_STATUS_STALL;
}
} else {
return USB_REQUEST_STATUS_OK;
}
}
