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arch/arm/src/imxrt/imxrt_ehci.c: Add i.MXRT ECHI driver.
This commit is contained in:
Dave Marples
committed by
Gregory Nutt
Gregory Nutt
parent
f6221ae2dc
commit
923cb52c7a
@@ -172,6 +172,12 @@ config IMXRT_EDMA
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default n
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select ARCH_DMA
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config IMXRT_USBOTG
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bool "USB EHCI"
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default n
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select USBHOST_HAVE_ASYNCH
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select USBHOST_ASYNCH
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config IMXRT_ENET
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bool "Ethernet"
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default n
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@@ -931,5 +937,42 @@ config IMXRT_DATA_RISING_EDGE
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endmenu # LCD Configuration
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if IMXRT_USBOTG && USBHOST
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menu "USB host controller driver (HCD) options"
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config IMXRT_EHCI_NQHS
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int "Number of Queue Head (QH) structures"
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default 4
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---help---
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Configurable number of Queue Head (QH) structures. The default is
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one per Root hub port plus one for EP0 (4).
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config IMXRT_EHCI_NQTDS
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int "Number of Queue Element Transfer Descriptor (qTDs)"
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default 6
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---help---
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Configurable number of Queue Element Transfer Descriptor (qTDs).
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The default is one per root hub plus three from EP0 (6).
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config IMXRT_EHCI_BUFSIZE
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int "Size of one request/descriptor buffer"
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default 128
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---help---
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The size of one request/descriptor buffer in bytes. The TD buffe
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size must be an even number of 32-bit words and must be large enough
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to hangle the largest transfer via a SETUP request.
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config IMXRT_EHCI_PREALLOCATE
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bool "Preallocate descriptor pool"
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default y
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---help---
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Select this option to pre-allocate EHCI queue and descriptor
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structure pools in .bss. Otherwise, these pools will be
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dynamically allocated using kmm_memalign().
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endmenu # USB host controller driver (HCD) options
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endif # IMXRT_USBOTG && USBHOST
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endif # ARCH_CHIP_IMXRT
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@@ -147,3 +147,7 @@ endif
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ifeq ($(CONFIG_IMXRT_LPSPI),y)
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CHIP_CSRCS += imxrt_lpspi.c
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endif
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ifeq ($(CONFIG_IMXRT_USBOTG),y)
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CHIP_CSRCS += imxrt_ehci.c
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endif
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File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,149 @@
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/*****************************************************************************
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* arch/arm/src/imxrt/imxrt_ehci.h
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*
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* Copyright (C) 2012, 2015, 2019 Gregory Nutt. All rights reserved.
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* Authors: Gregory Nutt <gnutt@nuttx.org>
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* Dave Marples <dave@marples.net>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*****************************************************************************/
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#ifndef __ARCH_ARM_SRC_IMXRT_IMXRT_EHCI_H
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#define __ARCH_ARM_SRC_IMXRT_IMXRT_EHCI_H
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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 "chip.h"
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/*****************************************************************************
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* Pre-processor Definitions
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*****************************************************************************/
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/*****************************************************************************
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* Public Types
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*****************************************************************************/
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#ifndef __ASSEMBLY__
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/*****************************************************************************
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* Public Data
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*****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/*****************************************************************************
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* Public Function Prototypes
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*****************************************************************************/
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/*****************************************************************************
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* Name: imxrt_usbhost_vbusdrive
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*
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* Description:
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* Enable/disable driving of VBUS 5V output. This function must be provided
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* by each platform that implements the OHCI or EHCI host interface
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*
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* Input Parameters:
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* rhport - Selects root hub port to be powered host interface. Since the
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* IMXRT has only a downstream port, zero is the only possible value for
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* this parameter.
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* enable - true: enable VBUS power; false: disable VBUS power
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*
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* Returned Value:
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* None
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*
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*****************************************************************************/
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extern void imxrt_usbhost_vbusdrive(int rhport, bool enable);
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/*****************************************************************************
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* Name: imxrt_setup_overcurrent
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*
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* Description:
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* Setup to receive an interrupt-level callback if an over-current condition
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* is detected.
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*
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* Input Parameters:
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* handler - New over-current interrupt handler
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* arg - The argument that will accompany the interrupt
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*
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* Returned Value:
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* Zero (OK) returned on success; a negated errno value is returned on
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* failure.
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*
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*****************************************************************************/
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extern int imxrt_setup_overcurrent(xcpt_t handler, void *arg);
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/*****************************************************************************
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* Name: imxrt_ehci_initialize
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*
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* Description:
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* Initialize USB EHCI host controller hardware.
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*
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* Input Parameters:
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* controller -- If the device supports more than one EHCI interface, then
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* this identifies which controller is being initialized. Normally, this
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* is just zero.
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*
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* Returned Value:
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* And instance of the USB host interface. The controlling task should
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* use this interface to (1) call the wait() method to wait for a device
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* to be connected, and (2) call the enumerate() method to bind the device
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* to a class driver.
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*
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* Assumptions:
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* - This function should called in the initialization sequence in order
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* to initialize the USB device functionality.
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* - Class drivers should be initialized prior to calling this function.
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* Otherwise, there is a race condition if the device is already connected.
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*
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****************************************************************************/
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#if defined(CONFIG_IMXRT_USBOTG) && defined(CONFIG_USBHOST)
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struct usbhost_connection_s;
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FAR struct usbhost_connection_s *imxrt_ehci_initialize(int controller);
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_ARM_SRC_IMXRT_IMXRT_EHCI_H */
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