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92 lines
2.0 KiB
C
92 lines
2.0 KiB
C
/*
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* Copyright (C) 2022 Mesotic SAS
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup pkg_tinyusb
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* @brief
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* @{
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*
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* @brief tinyUSB hardware driver for SAM0 MCUs
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* @author Dylan Laduranty <dylan.laduranty@mesotic.com>
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*/
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#include <errno.h>
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#include "periph_conf.h"
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#include "periph/gpio.h"
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#include "pm_layered.h"
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#include "log.h"
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#include "tusb.h"
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#include "device/usbd.h"
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#include "host/usbh.h"
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int tinyusb_hw_init(void)
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{
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/* Initialize GPIO pins */
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gpio_init(sam_usbdev_config[0].dp, GPIO_IN);
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gpio_init(sam_usbdev_config[0].dm, GPIO_IN);
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gpio_init_mux(sam_usbdev_config[0].dm, sam_usbdev_config[0].d_mux);
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gpio_init_mux(sam_usbdev_config[0].dp, sam_usbdev_config[0].d_mux);
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/* Initialize clocks */
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sam0_gclk_enable(sam_usbdev_config[0].gclk_src);
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#if defined(MCLK)
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MCLK->AHBMASK.reg |= MCLK_AHBMASK_USB;
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MCLK->APBBMASK.reg |= MCLK_APBBMASK_USB;
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#else
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PM->AHBMASK.reg |= PM_AHBMASK_USB;
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PM->APBBMASK.reg |= PM_APBBMASK_USB;
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#endif
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#if defined(CPU_COMMON_SAMD21)
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GCLK->CLKCTRL.reg = GCLK_CLKCTRL_CLKEN
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| GCLK_CLKCTRL_GEN(sam_usbdev_config[0].gclk_src)
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| GCLK_CLKCTRL_ID(USB_GCLK_ID);
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pm_block(SAMD21_PM_IDLE_1);
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#else
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GCLK->PCHCTRL[USB_GCLK_ID].reg = GCLK_PCHCTRL_CHEN
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| GCLK_PCHCTRL_GEN(sam_usbdev_config[0].gclk_src);
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#endif
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return 0;
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}
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void isr_usb(void)
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{
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/* call device interrupt handler with the first device */
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if (IS_USED(MODULE_TINYUSB_DEVICE)) {
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tud_int_handler(TINYUSB_TUD_RHPORT);
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}
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/* call host interrupt handler with the first device */
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if (IS_USED(MODULE_TINYUSB_HOST)) {
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tuh_int_handler(TINYUSB_TUH_RHPORT);
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}
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cortexm_isr_end();
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}
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void isr_usb0(void)
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{
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isr_usb();
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}
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void isr_usb1(void)
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{
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isr_usb();
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}
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void isr_usb2(void)
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{
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isr_usb();
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}
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void isr_usb3(void)
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{
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isr_usb();
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}
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