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iabdalkader
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mimxrt: Integrate support for WiFi via the CYW43 driver.
This commit adds the necessary configuration and hooks to get the CYW43 driver working with the mimxrt port. Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
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‎ports/mimxrt/board_init.c

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@@ -63,6 +63,7 @@ void board_init(void) {
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// 1ms tick timer
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SysTick_Config(SystemCoreClock / 1000);
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NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(NVIC_PRIORITYGROUP_4, 0, 0));
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// USB0
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usb_phy0_init(0b0111, 0b0110, 0b0110); // Configure nominal values for D_CAL and TXCAL45DP/DN

‎ports/mimxrt/cyw43_configport.h

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/*
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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) 2022 Damien P. George
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* Copyright (c) 2022 Jim Mussared
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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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#ifndef MICROPY_INCLUDED_STM32_CYW43_CONFIGPORT_H
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#define MICROPY_INCLUDED_STM32_CYW43_CONFIGPORT_H
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// The board-level config will be included here, so it can set some CYW43 values.
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#include "py/mpconfig.h"
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#include "py/mperrno.h"
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#include "py/mphal.h"
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#include "extmod/modnetwork.h"
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#include "pendsv.h"
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#include "sdio.h"
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#define CYW43_USE_SPI (0)
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#define CYW43_LWIP (1)
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#define CYW43_USE_STATS (0)
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#ifndef CYW43_CHIPSET_FIRMWARE_INCLUDE_FILE
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#define CYW43_CHIPSET_FIRMWARE_INCLUDE_FILE "lib/cyw43-driver/firmware/w4343WA1_7_45_98_50_combined.h"
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#endif
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#ifndef CYW43_WIFI_NVRAM_INCLUDE_FILE
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#define CYW43_WIFI_NVRAM_INCLUDE_FILE "lib/cyw43-driver/firmware/wifi_nvram_1dx.h"
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#endif
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#define CYW43_IOCTL_TIMEOUT_US (1000000)
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#define CYW43_SLEEP_MAX (50)
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#define CYW43_NETUTILS (1)
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#define CYW43_CLEAR_SDIO_INT (1)
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#define CYW43_EPERM MP_EPERM // Operation not permitted
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#define CYW43_EIO MP_EIO // I/O error
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#define CYW43_EINVAL MP_EINVAL // Invalid argument
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#define CYW43_ETIMEDOUT MP_ETIMEDOUT // Connection timed out
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#define CYW43_THREAD_ENTER MICROPY_PY_LWIP_ENTER
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#define CYW43_THREAD_EXIT MICROPY_PY_LWIP_EXIT
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#define CYW43_THREAD_LOCK_CHECK
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#define CYW43_HOST_NAME mod_network_hostname
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#define CYW43_SDPCM_SEND_COMMON_WAIT __WFI();
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#define CYW43_DO_IOCTL_WAIT __WFI();
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#define CYW43_ARRAY_SIZE(a) MP_ARRAY_SIZE(a)
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#define CYW43_HAL_PIN_MODE_INPUT MP_HAL_PIN_MODE_INPUT
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#define CYW43_HAL_PIN_MODE_OUTPUT MP_HAL_PIN_MODE_OUTPUT
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#define CYW43_HAL_PIN_PULL_NONE MP_HAL_PIN_PULL_NONE
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#define CYW43_HAL_PIN_PULL_UP MP_HAL_PIN_PULL_UP
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#define CYW43_HAL_PIN_PULL_DOWN MP_HAL_PIN_PULL_DOWN
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#define CYW43_HAL_MAC_WLAN0 MP_HAL_MAC_WLAN0
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#define cyw43_hal_ticks_us mp_hal_ticks_us
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#define cyw43_hal_ticks_ms mp_hal_ticks_ms
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#define cyw43_hal_pin_obj_t mp_hal_pin_obj_t
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#define cyw43_hal_pin_read mp_hal_pin_read
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#define cyw43_hal_pin_low mp_hal_pin_low
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#define cyw43_hal_pin_high mp_hal_pin_high
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#define cyw43_hal_get_mac mp_hal_get_mac
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#define cyw43_hal_get_mac_ascii mp_hal_get_mac_ascii
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#define cyw43_hal_generate_laa_mac mp_hal_generate_laa_mac
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#define cyw43_delay_us mp_hal_delay_us
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#define cyw43_delay_ms mp_hal_delay_ms
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#define CYW43_PIN_WL_REG_ON MICROPY_HW_WL_REG_ON
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#define CYW43_PIN_WL_HOST_WAKE MICROPY_HW_WL_HOST_WAKE
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#define CYW43_PIN_WL_SDIO_1 MICROPY_HW_SDIO_D1
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#define CYW43_PIN_BT_REG_ON MICROPY_HW_BT_REG_ON
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#ifdef MICROPY_HW_BT_HOST_WAKE
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#define CYW43_PIN_BT_HOST_WAKE MICROPY_HW_BT_HOST_WAKE
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#endif
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#ifdef MICROPY_HW_BT_DEV_WAKE
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#define CYW43_PIN_BT_DEV_WAKE MICROPY_HW_BT_DEV_WAKE
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#endif
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#ifdef MICROPY_HW_BT_CTS
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#define CYW43_PIN_BT_CTS MICROPY_HW_BT_CTS
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#endif
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#if MICROPY_HW_ENABLE_RF_SWITCH
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#define CYW43_PIN_WL_RFSW_VDD pin_WL_RFSW_VDD
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#endif
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#define cyw43_schedule_internal_poll_dispatch(func) pendsv_schedule_dispatch(PENDSV_DISPATCH_CYW43, func)
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static inline void cyw43_hal_pin_config(cyw43_hal_pin_obj_t pin, uint8_t mode, uint8_t pull, uint8_t alt) {
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machine_pin_set_mode(pin, mode);
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}
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static inline void cyw43_hal_pin_config_irq_falling(cyw43_hal_pin_obj_t pin, int enable) {
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if (enable) {
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machine_pin_config(pin, PIN_MODE_IT_FALLING, PIN_PULL_UP_100K, 0, 0, PIN_AF_MODE_ALT5);
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}
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}
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static inline void cyw43_sdio_init(void) {
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sdio_init(NVIC_EncodePriority(NVIC_PRIORITYGROUP_4, 14, 0));
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}
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static inline void cyw43_sdio_reinit(void) {
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sdio_reenable();
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}
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static inline void cyw43_sdio_deinit(void) {
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sdio_deinit();
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}
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static inline void cyw43_sdio_set_irq(bool enable) {
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sdio_enable_irq(enable);
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}
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static inline void cyw43_sdio_enable_high_speed_4bit(void) {
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sdio_enable_high_speed_4bit();
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}
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static inline int cyw43_sdio_transfer(uint32_t cmd, uint32_t arg, uint32_t *resp) {
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return sdio_transfer(cmd, arg, resp);
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}
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static inline int cyw43_sdio_transfer_cmd53(bool write, uint32_t block_size, uint32_t arg, size_t len, uint8_t *buf) {
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return sdio_transfer_cmd53(write, block_size, arg, len, buf);
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}
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#define CYW43_EVENT_POLL_HOOK MICROPY_EVENT_POLL_HOOK
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#endif // MICROPY_INCLUDED_STM32_CYW43_CONFIGPORT_H

‎ports/mimxrt/machine_pin.c

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@@ -34,6 +34,9 @@
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#include "shared/runtime/mpirq.h"
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#include "extmod/virtpin.h"
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#include "pin.h"
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#if MICROPY_PY_NETWORK_CYW43
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#include "pendsv.h"
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#endif
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// Local functions
3942
STATIC mp_obj_t machine_pin_obj_init_helper(const machine_pin_obj_t *self, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args);
@@ -98,6 +101,16 @@ void call_handler(GPIO_Type *gpio, int gpio_nr, int pin) {
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if (isr & mask) {
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gpio->ISR = mask; // clear the ISR flag
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int index = GET_PIN_IRQ_INDEX(gpio_nr, pin);
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#if MICROPY_PY_NETWORK_CYW43
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extern void (*cyw43_poll)(void);
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const machine_pin_obj_t *pin = MICROPY_HW_WL_HOST_WAKE;
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if (pin->gpio == gpio && pin->pin == (index % 32)) {
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if (cyw43_poll) {
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pendsv_schedule_dispatch(PENDSV_DISPATCH_CYW43, cyw43_poll);
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}
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return;
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}
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#endif
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machine_pin_irq_obj_t *irq = MP_STATE_PORT(machine_pin_irq_objects[index]);
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if (irq != NULL) {
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irq->flags = irq->trigger;

‎ports/mimxrt/main.c

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@@ -43,6 +43,9 @@
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#if MICROPY_PY_LWIP
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#include "lwip/init.h"
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#include "lwip/apps/mdns.h"
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#if MICROPY_PY_NETWORK_CYW43
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#include "lib/cyw43-driver/src/cyw43.h"
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#endif
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#endif
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#include "systick.h"
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#include "extmod/modnetwork.h"
@@ -69,6 +72,17 @@ int main(void) {
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systick_enable_dispatch(SYSTICK_DISPATCH_LWIP, mod_network_lwip_poll_wrapper);
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#endif
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#if MICROPY_PY_NETWORK_CYW43
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{
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cyw43_init(&cyw43_state);
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uint8_t buf[8];
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memcpy(&buf[0], "PYBD", 4);
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mp_hal_get_mac_ascii(MP_HAL_MAC_WLAN0, 8, 4, (char *)&buf[4]);
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cyw43_wifi_ap_set_ssid(&cyw43_state, 8, buf);
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cyw43_wifi_ap_set_password(&cyw43_state, 8, (const uint8_t *)"pybd0123");
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}
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#endif
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for (;;) {
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#if defined(MICROPY_HW_LED1)
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led_init();

‎ports/mimxrt/mpconfigport.h

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@@ -170,12 +170,20 @@ extern const struct _mp_obj_type_t network_lan_type;
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#define MICROPY_HW_NIC_ETH
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#endif
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#if MICROPY_PY_NETWORK_CYW43
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extern const struct _mp_obj_type_t mp_network_cyw43_type;
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#define MICROPY_HW_NIC_CYW43 { MP_ROM_QSTR(MP_QSTR_WLAN), MP_ROM_PTR(&mp_network_cyw43_type) },
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#else
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#define MICROPY_HW_NIC_CYW43
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#endif
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#ifndef MICROPY_BOARD_NETWORK_INTERFACES
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#define MICROPY_BOARD_NETWORK_INTERFACES
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#endif
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#define MICROPY_PORT_NETWORK_INTERFACES \
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MICROPY_HW_NIC_ETH \
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MICROPY_HW_NIC_CYW43 \
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MICROPY_BOARD_NETWORK_INTERFACES \
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#ifndef MICROPY_BOARD_ROOT_POINTERS

‎ports/mimxrt/mpnetworkport.c

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#include "lwip/dhcp.h"
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#include "lwip/apps/mdns.h"
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#if MICROPY_PY_NETWORK_CYW43
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#include "extmod/network_cyw43.h"
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#include "lib/cyw43-driver/src/cyw43.h"
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#endif
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// Poll lwIP every 128ms
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#define LWIP_TICK(tick) (((tick) & ~(SYSTICK_DISPATCH_NUM_SLOTS - 1) & 0x7f) == 0)
4853

@@ -59,6 +64,16 @@ void mod_network_lwip_poll_wrapper(uint32_t ticks_ms) {
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if (LWIP_TICK(ticks_ms)) {
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pendsv_schedule_dispatch(PENDSV_DISPATCH_LWIP, pyb_lwip_poll);
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}
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#if MICROPY_PY_NETWORK_CYW43
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if (cyw43_poll) {
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if (cyw43_sleep != 0) {
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if (--cyw43_sleep == 0) {
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pendsv_schedule_dispatch(PENDSV_DISPATCH_CYW43, cyw43_poll);
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}
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}
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}
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#endif
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}
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#endif // MICROPY_PY_LWIP

‎ports/mimxrt/pendsv.h

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@@ -31,6 +31,9 @@ enum {
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#if MICROPY_PY_NETWORK && MICROPY_PY_LWIP
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PENDSV_DISPATCH_LWIP,
3333
#endif
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#if MICROPY_PY_NETWORK_CYW43
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PENDSV_DISPATCH_CYW43,
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#endif
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MICROPY_BOARD_PENDSV_ENTRIES
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PENDSV_DISPATCH_MAX
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};

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