128 lines
3.9 KiB
C
128 lines
3.9 KiB
C
/****************************************************************************
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* boards/arm/kinetis/freedom-k28f/src/k28_usbdev.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <debug.h>
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#include <nuttx/usb/usbdev.h>
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#include <nuttx/usb/usbdev_trace.h>
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#include "arm_arch.h"
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#include "kinetis.h"
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#include "kinetis_usbotg.h"
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#include "hardware/kinetis_sim.h"
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#include "freedom-k28f.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define khci_getreg(addr) getreg8(addr)
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#define khci_putreg(val,addr) putreg8(val,addr)
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: k28_usbdev_initialize
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*
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* Description:
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* Called to setup USB-related GPIO pins for the KwikStik-K40 board.
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*
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****************************************************************************/
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void k28_usbdev_initialize(void)
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{
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}
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/****************************************************************************
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* Name: kinetis_usbpullup
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*
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* Description:
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* If USB is supported and the board supports a pullup via GPIO (for USB
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* software connect and disconnect), then the board software must provide
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* kinetis_pullup. See include/nuttx/usb/usbdev.h for additional
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* description of this method.
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* Alternatively, if no pull-up GPIO the following EXTERN can be redefined
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* to be NULL.
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*
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****************************************************************************/
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int kinetis_usbpullup(FAR struct usbdev_s *dev, bool enable)
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{
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usbtrace(TRACE_DEVPULLUP, (uint16_t)enable);
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#if 0
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uint32_t regval;
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#endif
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if (enable)
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{
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khci_putreg(USB_CONTROL_DPPULLUPNONOTG, KINETIS_USB0_CONTROL);
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}
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else
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{
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khci_putreg(0, KINETIS_USB0_CONTROL);
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}
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#if 0
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regval = khci_getreg(KINETIS_USB0_OTGCTL);
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if (enable)
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{
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regval |= (1 << 2);
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}
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else
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{
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regval &= ~(1 << 2);
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}
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khci_putreg(regval, KINETIS_USB0_OTGCTL);
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#endif
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return OK;
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}
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/****************************************************************************
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* Name: kinetis_usbsuspend
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*
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* Description:
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* Board logic must provide the kinetis_usbsuspend logic if the USBDEV
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* driver is used.
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* This function is called whenever the USB enters or leaves suspend mode.
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* This is an opportunity for the board logic to shutdown clocks, power,
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* etc. while the USB is suspended.
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*
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****************************************************************************/
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void kinetis_usbsuspend(FAR struct usbdev_s *dev, bool resume)
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{
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uinfo("resume: %d\n", resume);
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#warning "Missing logic"
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}
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