9d91111b1b
This started while adding USB MIDI support (and descriptor support is in this change.) When seeing that I'd have to implement the MIDI class logic twice, once for atmel-samd and once for nrf, I decided to refactor the USB stack so its shared across ports. This has led to a number of changes that remove items from the ports folder and move them into supervisor. Furthermore, we had external SPI flash support for nrf pending so I factored out the connection between the usb stack and the flash API as well. This PR also includes the QSPI support for nRF.
128 lines
3.4 KiB
C
128 lines
3.4 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017, 2018 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/mphal.h"
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#include "supervisor/serial.h"
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#if (MICROPY_PY_BLE_NUS == 1)
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#include "ble_uart.h"
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#else
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#include <string.h>
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#include "nrf_gpio.h"
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#include "nrfx_uarte.h"
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#endif
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#if (MICROPY_PY_BLE_NUS == 1)
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void serial_init(void) {
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ble_uart_init();
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}
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bool serial_connected(void) {
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return ble_uart_connected();
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}
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char serial_read(void) {
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return (char) ble_uart_rx_chr();
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}
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bool serial_bytes_available(void) {
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return ble_uart_stdin_any();
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}
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void serial_write(const char *text) {
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ble_uart_stdout_tx_str(text);
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}
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#elif !defined(NRF52840_XXAA)
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uint8_t serial_received_char;
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nrfx_uarte_t serial_instance = NRFX_UARTE_INSTANCE(0);
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void serial_init(void) {
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nrfx_uarte_config_t config = {
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.pseltxd = MICROPY_HW_UART_TX,
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.pselrxd = MICROPY_HW_UART_RX,
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.pselcts = NRF_UARTE_PSEL_DISCONNECTED,
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.pselrts = NRF_UARTE_PSEL_DISCONNECTED,
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.p_context = NULL,
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.hwfc = NRF_UARTE_HWFC_DISABLED,
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.parity = NRF_UARTE_PARITY_EXCLUDED,
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.baudrate = NRF_UARTE_BAUDRATE_115200,
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.interrupt_priority = 7
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};
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nrfx_uarte_uninit(&serial_instance);
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const nrfx_err_t err = nrfx_uarte_init(&serial_instance, &config, NULL); // no callback for blocking mode
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if (err != NRFX_SUCCESS) {
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NRFX_ASSERT(err);
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}
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// enabled receiving
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nrf_uarte_task_trigger(serial_instance.p_reg, NRF_UARTE_TASK_STARTRX);
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}
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bool serial_connected(void) {
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return true;
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}
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char serial_read(void) {
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uint8_t data;
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nrfx_uarte_rx(&serial_instance, &data, 1);
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return data;
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}
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bool serial_bytes_available(void) {
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return nrf_uarte_event_check(serial_instance.p_reg, NRF_UARTE_EVENT_RXDRDY);
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}
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void serial_write(const char* text) {
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serial_write_substring(text, strlen(text));
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}
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void serial_write_substring(const char *text, uint32_t len) {
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if (len == 0) {
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return;
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}
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// EasyDMA can only access SRAM
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uint8_t * tx_buf = (uint8_t*) text;
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if ( !nrfx_is_in_ram(text) ) {
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tx_buf = (uint8_t *) m_malloc(len, false);
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memcpy(tx_buf, text, len);
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}
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nrfx_uarte_tx(&serial_instance, tx_buf, len);
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if ( !nrfx_is_in_ram(text) ) {
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m_free(tx_buf);
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}
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}
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#endif
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