mirror of
https://github.com/hathach/tinyusb.git
synced 2025-01-17 05:32:55 +08:00
e0d632a954
also make some other changes
296 lines
8.5 KiB
C
296 lines
8.5 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020, Ha Thach (tinyusb.org)
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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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* This file is part of the TinyUSB stack.
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*/
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#include "bsp/board_api.h"
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#include "board.h"
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#include "esp_rom_gpio.h"
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#include "hal/gpio_ll.h"
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#include "hal/usb_hal.h"
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#include "soc/usb_periph.h"
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#include "driver/rmt.h"
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#include "driver/uart.h"
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#if ESP_IDF_VERSION_MAJOR > 4
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#include "esp_private/periph_ctrl.h"
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#else
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#include "driver/periph_ctrl.h"
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#endif
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// Note; current code use UART0 can cause device to reset while monitoring
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#define USE_UART 0
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#define UART_ID UART_NUM_0
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#ifdef NEOPIXEL_PIN
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#include "led_strip.h"
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static led_strip_t* strip;
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#endif
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#if CFG_TUH_ENABLED && CFG_TUH_MAX3421
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#include "driver/spi_master.h"
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static void max3421_init(void);
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#endif
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static void configure_pins(usb_hal_context_t* usb);
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//--------------------------------------------------------------------+
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// Implementation
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//--------------------------------------------------------------------+
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// Initialize on-board peripherals : led, button, uart and USB
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void board_init(void) {
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#if USE_UART
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// uart init
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uart_config_t uart_config = {
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.baud_rate = 115200,
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.data_bits = UART_DATA_8_BITS,
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.parity = UART_PARITY_DISABLE,
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.stop_bits = UART_STOP_BITS_1,
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.flow_ctrl = UART_HW_FLOWCTRL_DISABLE
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};
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uart_driver_install(UART_ID, 1024, 0, 0, NULL, 0);
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uart_param_config(UART_ID, &uart_config);
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#endif
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#ifdef NEOPIXEL_PIN
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#ifdef NEOPIXEL_POWER_PIN
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gpio_reset_pin(NEOPIXEL_POWER_PIN);
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gpio_set_direction(NEOPIXEL_POWER_PIN, GPIO_MODE_OUTPUT);
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gpio_set_level(NEOPIXEL_POWER_PIN, NEOPIXEL_POWER_STATE);
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#endif
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// WS2812 Neopixel driver with RMT peripheral
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rmt_config_t config = RMT_DEFAULT_CONFIG_TX(NEOPIXEL_PIN, RMT_CHANNEL_0);
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config.clk_div = 2; // set counter clock to 40MHz
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rmt_config(&config);
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rmt_driver_install(config.channel, 0, 0);
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led_strip_config_t strip_config = LED_STRIP_DEFAULT_CONFIG(1, (led_strip_dev_t) config.channel);
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strip = led_strip_new_rmt_ws2812(&strip_config);
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strip->clear(strip, 100); // off led
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#endif
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// Button
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esp_rom_gpio_pad_select_gpio(BUTTON_PIN);
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gpio_set_direction(BUTTON_PIN, GPIO_MODE_INPUT);
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gpio_set_pull_mode(BUTTON_PIN, BUTTON_STATE_ACTIVE ? GPIO_PULLDOWN_ONLY : GPIO_PULLUP_ONLY);
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// USB Controller Hal init
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periph_module_reset(PERIPH_USB_MODULE);
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periph_module_enable(PERIPH_USB_MODULE);
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usb_hal_context_t hal = {
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.use_external_phy = false // use built-in PHY
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};
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usb_hal_init(&hal);
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configure_pins(&hal);
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#if CFG_TUH_ENABLED && CFG_TUH_MAX3421
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max3421_init();
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#endif
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}
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static void configure_pins(usb_hal_context_t* usb) {
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/* usb_periph_iopins currently configures USB_OTG as USB Device.
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* Introduce additional parameters in usb_hal_context_t when adding support
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* for USB Host. */
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for (const usb_iopin_dsc_t* iopin = usb_periph_iopins; iopin->pin != -1; ++iopin) {
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if ((usb->use_external_phy) || (iopin->ext_phy_only == 0)) {
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esp_rom_gpio_pad_select_gpio(iopin->pin);
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if (iopin->is_output) {
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esp_rom_gpio_connect_out_signal(iopin->pin, iopin->func, false, false);
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} else {
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esp_rom_gpio_connect_in_signal(iopin->pin, iopin->func, false);
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#if ESP_IDF_VERSION_MAJOR > 4
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if ((iopin->pin != GPIO_MATRIX_CONST_ZERO_INPUT) && (iopin->pin != GPIO_MATRIX_CONST_ONE_INPUT))
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#else
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if ((iopin->pin != GPIO_FUNC_IN_LOW) && (iopin->pin != GPIO_FUNC_IN_HIGH))
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#endif
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{
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gpio_ll_input_enable(&GPIO, iopin->pin);
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}
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}
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esp_rom_gpio_pad_unhold(iopin->pin);
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}
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}
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if (!usb->use_external_phy) {
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gpio_set_drive_capability(USBPHY_DM_NUM, GPIO_DRIVE_CAP_3);
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gpio_set_drive_capability(USBPHY_DP_NUM, GPIO_DRIVE_CAP_3);
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}
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}
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//--------------------------------------------------------------------+
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// Board porting API
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//--------------------------------------------------------------------+
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void board_led_write(bool state) {
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#ifdef NEOPIXEL_PIN
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strip->set_pixel(strip, 0, (state ? 0x88 : 0x00), 0x00, 0x00);
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strip->refresh(strip, 100);
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#endif
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}
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// Get the current state of button
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// a '1' means active (pressed), a '0' means inactive.
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uint32_t board_button_read(void) {
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return gpio_get_level(BUTTON_PIN) == BUTTON_STATE_ACTIVE;
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}
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// Get characters from UART
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int board_uart_read(uint8_t* buf, int len) {
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#if USE_UART
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return uart_read_bytes(UART_ID, buf, len, 0);
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#else
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return -1;
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#endif
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}
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// Send characters to UART
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int board_uart_write(void const* buf, int len) {
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(void) buf;
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(void) len;
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return 0;
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}
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int board_getchar(void) {
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uint8_t c = 0;
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return board_uart_read(&c, 1) > 0 ? (int) c : (-1);
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}
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//--------------------------------------------------------------------+
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// API: SPI transfer with MAX3421E, must be implemented by application
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//--------------------------------------------------------------------+
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#if CFG_TUH_ENABLED && defined(CFG_TUH_MAX3421) && CFG_TUH_MAX3421
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static spi_device_handle_t max3421_spi;
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SemaphoreHandle_t max3421_intr_sem;
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static void IRAM_ATTR max3421_isr_handler(void* arg) {
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(void) arg; // arg is gpio num
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gpio_set_level(13, 1);
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BaseType_t xHigherPriorityTaskWoken = pdFALSE;
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xSemaphoreGiveFromISR(max3421_intr_sem, &xHigherPriorityTaskWoken);
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if (xHigherPriorityTaskWoken) {
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portYIELD_FROM_ISR();
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}
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gpio_set_level(13, 0);
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}
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static void max3421_intr_task(void* param) {
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(void) param;
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while (1) {
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xSemaphoreTake(max3421_intr_sem, portMAX_DELAY);
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tuh_int_handler(BOARD_TUH_RHPORT, false);
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}
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}
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static void max3421_init(void) {
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// CS pin
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gpio_set_direction(MAX3421_CS_PIN, GPIO_MODE_OUTPUT);
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gpio_set_level(MAX3421_CS_PIN, 1);
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// SPI
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spi_bus_config_t buscfg = {
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.miso_io_num = MAX3421_MISO_PIN,
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.mosi_io_num = MAX3421_MOSI_PIN,
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.sclk_io_num = MAX3421_SCK_PIN,
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.quadwp_io_num = -1,
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.quadhd_io_num = -1,
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.data4_io_num = -1,
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.data5_io_num = -1,
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.data6_io_num = -1,
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.data7_io_num = -1,
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.max_transfer_sz = 1024
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};
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ESP_ERROR_CHECK(spi_bus_initialize(MAX3421_SPI_HOST, &buscfg, SPI_DMA_CH_AUTO));
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spi_device_interface_config_t max3421_cfg = {
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.mode = 0,
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.clock_speed_hz = 26000000,
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.spics_io_num = -1, // manual control CS
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.queue_size = 1
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};
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ESP_ERROR_CHECK(spi_bus_add_device(MAX3421_SPI_HOST, &max3421_cfg, &max3421_spi));
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// debug
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gpio_set_direction(13, GPIO_MODE_OUTPUT);
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gpio_set_level(13, 0);
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// Interrupt pin
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max3421_intr_sem = xSemaphoreCreateBinary();
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xTaskCreate(max3421_intr_task, "max3421 intr", 2048, NULL, configMAX_PRIORITIES - 2, NULL);
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gpio_set_direction(MAX3421_INTR_PIN, GPIO_MODE_INPUT);
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gpio_set_intr_type(MAX3421_INTR_PIN, GPIO_INTR_NEGEDGE);
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gpio_install_isr_service(0);
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gpio_isr_handler_add(MAX3421_INTR_PIN, max3421_isr_handler, NULL);
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}
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void tuh_max3421_int_api(uint8_t rhport, bool enabled) {
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(void) rhport;
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if (enabled) {
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gpio_intr_enable(MAX3421_INTR_PIN);
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} else {
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gpio_intr_disable(MAX3421_INTR_PIN);
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}
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}
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void tuh_max3421_spi_cs_api(uint8_t rhport, bool active) {
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(void) rhport;
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gpio_set_level(MAX3421_CS_PIN, active ? 0 : 1);
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}
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bool tuh_max3421_spi_xfer_api(uint8_t rhport, uint8_t const* tx_buf, uint8_t* rx_buf, size_t xfer_bytes) {
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(void) rhport;
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if (tx_buf == NULL) {
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// fifo read, transmit rx_buf as dummy
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tx_buf = rx_buf;
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}
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// length in bits
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size_t const len_bits = xfer_bytes << 3;
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spi_transaction_t xact = {
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.length = len_bits,
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.rxlength = rx_buf ? len_bits : 0,
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.tx_buffer = tx_buf,
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.rx_buffer = rx_buf
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};
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ESP_ERROR_CHECK(spi_device_transmit(max3421_spi, &xact));
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return true;
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}
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#endif
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