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https://github.com/espressif/esp-idf.git
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81448dcae8
1. Renamed Kconfig file of tinyusb (distinguish tinyusb stack from usb peripheral) 2. bugfix/typofix/doc update of tinyusb
85 lines
3.1 KiB
C
85 lines
3.1 KiB
C
// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "sdkconfig.h"
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#include "driver/gpio.h"
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#include "driver/periph_ctrl.h"
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#include "esp_log.h"
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#include "esp_check.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/gpio_periph.h"
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#include "soc/usb_periph.h"
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#include "tinyusb.h"
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#include "descriptors_control.h"
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#include "tusb.h"
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#include "tusb_tasks.h"
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const static char *TAG = "TinyUSB";
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static void configure_pins(usb_hal_context_t *usb)
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{
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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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*/
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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 ((iopin->pin != GPIO_FUNC_IN_LOW) && (iopin->pin != GPIO_FUNC_IN_HIGH)) {
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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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esp_err_t tinyusb_driver_install(const tinyusb_config_t *config)
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{
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tusb_desc_device_t *dev_descriptor;
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const char **string_descriptor;
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ESP_RETURN_ON_FALSE(config, ESP_ERR_INVALID_ARG, TAG, "invalid argument");
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// Enable APB CLK to USB peripheral
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periph_module_enable(PERIPH_USB_MODULE);
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periph_module_reset(PERIPH_USB_MODULE);
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// Initialize HAL layer
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usb_hal_context_t hal = {
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.use_external_phy = config->external_phy
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};
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usb_hal_init(&hal);
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configure_pins(&hal);
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dev_descriptor = config->descriptor ? config->descriptor : &descriptor_kconfig;
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string_descriptor = config->string_descriptor ? config->string_descriptor : descriptor_str_kconfig;
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tusb_set_descriptor(dev_descriptor, string_descriptor);
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ESP_RETURN_ON_FALSE(tusb_init(), ESP_FAIL, TAG, "Init TinyUSB stack failed");
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#if !CONFIG_TINYUSB_NO_DEFAULT_TASK
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ESP_RETURN_ON_ERROR(tusb_run_task(), TAG, "Run TinyUSB task failed");
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#endif
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ESP_LOGI(TAG, "TinyUSB Driver installed");
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return ESP_OK;
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}
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