154 lines
4.5 KiB
C
154 lines
4.5 KiB
C
/*
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* This file is part of the OpenMV project, https://openmv.io.
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013-2021 Ibrahim Abdelkader <iabdalkader@openmv.io>
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* Copyright (c) 2013-2021 Kwabena W. Agyeman <kwagyeman@openmv.io>
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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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* NINA-W10 driver BSP implementation.
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*/
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#include "py/mphal.h"
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#if MICROPY_PY_NETWORK_NINAW10
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#include <stdint.h>
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#include <string.h>
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#include "py/runtime.h"
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#include "modmachine.h"
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#include "extmod/machine_spi.h"
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#include "mpconfigboard.h"
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#include "nina_bsp.h"
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#include "nina_wifi_drv.h"
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#if NINA_DEBUG
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#define debug_printf(...) mp_printf(&mp_plat_print, __VA_ARGS__)
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#else
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#define debug_printf(...)
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#endif
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int nina_bsp_init(void) {
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mp_hal_pin_output(MICROPY_HW_NINA_GPIO1);
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mp_hal_pin_input(MICROPY_HW_NINA_ACK);
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mp_hal_pin_output(MICROPY_HW_NINA_RESET);
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mp_hal_pin_output(MICROPY_HW_NINA_GPIO0);
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// Reset module in WiFi mode
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mp_hal_pin_write(MICROPY_HW_NINA_GPIO1, 1);
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mp_hal_pin_write(MICROPY_HW_NINA_GPIO0, 1);
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mp_hal_pin_write(MICROPY_HW_NINA_RESET, 0);
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mp_hal_delay_ms(100);
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mp_hal_pin_write(MICROPY_HW_NINA_RESET, 1);
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mp_hal_delay_ms(750);
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mp_hal_pin_write(MICROPY_HW_NINA_GPIO0, 0);
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mp_hal_pin_input(MICROPY_HW_NINA_GPIO0);
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// Initialize SPI.
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mp_obj_t args[] = {
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MP_OBJ_NEW_SMALL_INT(MICROPY_HW_WIFI_SPI_ID),
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MP_OBJ_NEW_SMALL_INT(MICROPY_HW_WIFI_SPI_BAUDRATE),
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};
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MP_STATE_PORT(mp_wifi_spi) = MP_OBJ_TYPE_GET_SLOT(&machine_spi_type, make_new)((mp_obj_t)&machine_spi_type, 2, 0, args);
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return 0;
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}
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int nina_bsp_deinit(void) {
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mp_hal_pin_output(MICROPY_HW_NINA_GPIO1);
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mp_hal_pin_write(MICROPY_HW_NINA_GPIO1, 1);
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mp_hal_pin_output(MICROPY_HW_NINA_RESET);
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mp_hal_pin_write(MICROPY_HW_NINA_RESET, 0);
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mp_hal_delay_ms(100);
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mp_hal_pin_output(MICROPY_HW_NINA_GPIO0);
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mp_hal_pin_write(MICROPY_HW_NINA_GPIO0, 1);
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return 0;
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}
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int nina_bsp_atomic_enter(void) {
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#if MICROPY_ENABLE_SCHEDULER
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mp_sched_lock();
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#endif
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return 0;
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}
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int nina_bsp_atomic_exit(void) {
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#if MICROPY_ENABLE_SCHEDULER
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mp_sched_unlock();
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#endif
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return 0;
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}
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int nina_bsp_read_irq(void) {
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return mp_hal_pin_read(MICROPY_HW_NINA_GPIO0);
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}
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int nina_bsp_spi_slave_select(uint32_t timeout) {
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// Wait for ACK to go low.
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for (mp_uint_t start = mp_hal_ticks_ms(); mp_hal_pin_read(MICROPY_HW_NINA_ACK) == 1; mp_hal_delay_ms(1)) {
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if (timeout && ((mp_hal_ticks_ms() - start) >= timeout)) {
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return -1;
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}
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}
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// Chip select.
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mp_hal_pin_write(MICROPY_HW_NINA_GPIO1, 0);
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// Wait for ACK to go high.
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for (mp_uint_t start = mp_hal_ticks_ms(); mp_hal_pin_read(MICROPY_HW_NINA_ACK) == 0; mp_hal_delay_ms(1)) {
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if ((mp_hal_ticks_ms() - start) >= 100) {
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mp_hal_pin_write(MICROPY_HW_NINA_GPIO1, 1);
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return -1;
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}
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}
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return 0;
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}
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int nina_bsp_spi_slave_deselect(void) {
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mp_hal_pin_write(MICROPY_HW_NINA_GPIO1, 1);
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return 0;
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}
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int nina_bsp_spi_transfer(const uint8_t *tx_buf, uint8_t *rx_buf, uint32_t size) {
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mp_obj_t mp_wifi_spi = MP_STATE_PORT(mp_wifi_spi);
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((mp_machine_spi_p_t *)MP_OBJ_TYPE_GET_SLOT(&machine_spi_type, protocol))->transfer(mp_wifi_spi, size, tx_buf, rx_buf);
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#if NINA_DEBUG
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for (int i = 0; i < size; i++) {
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if (tx_buf) {
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debug_printf("0x%x ", tx_buf[i]);
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} else {
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debug_printf("0x%x ", rx_buf[i]);
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}
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}
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#endif
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return 0;
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}
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#endif // MICROPY_PY_NETWORK_NINAW10
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