SAMD/L21: Add a USB driver. Developed for Filament Inc. by Offcode, LTD.
This commit is contained in:
Janne Rosberg
Gregory Nutt
parent
5448c99ff2
commit
76ea6f09ec
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@ -466,6 +466,10 @@ config SAMDL_HAVE_TC7
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bool
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default n
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config SAMDL_HAVE_USB
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bool
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default n
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config SAMDL_AC
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bool "Analog Comparator"
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default n
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@ -737,3 +741,25 @@ config SAMDL_I2C_REGDEBUG
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Enable very low-level register access debug. Depends on DEBUG_I2C.
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endif # SAMDL_HAVE_I2C
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if SAMDL_HAVE_USB
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config SAMDL_USB_ENABLE_PPEP
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bool "Enable Ping-Pong Endpoints"
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default n
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---help---
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To maximize throughput, an endpoint can be configured for ping-pong
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operation. When this is done the input and output endpoint with the same
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address are used in the same direction. The CPU or DMA Controller can
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then read/write one data buffer while the USB module writes/reads from
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the other buffer. This gives double buffered communication.
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config SAMDL_USB_REGDEBUG
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bool "USB register-Level Debug"
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default n
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depends on DEBUG_USB_INFO
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---help---
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Enable very low-level register access debug. Depends on
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CONFIG_DEBUG_USB_INFO.
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endif # SAMDL_HAVE_USB
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@ -98,3 +98,7 @@ endif
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ifeq ($(CONFIG_SAMDL_HAVE_I2C),y)
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CHIP_CSRCS += sam_i2c_master.c
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endif
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ifeq ($(CONFIG_SAMDL_USB),y)
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CHIP_CSRCS += sam_usb.c
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endif
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@ -37,6 +37,7 @@
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*
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********************************************************************************************/
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#ifndef __ARCH_ARM_SRC_SAMDL_CHIP_SAML_USB_H
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#define __ARCH_ARM_SRC_SAMDL_CHIP_SAML_USB_H
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@ -53,6 +54,29 @@
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/********************************************************************************************
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* Pre-processor Definitions
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********************************************************************************************/
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/* Capabilities and characteristics of endpoints ********************************************/
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/* EP EP BANKS EP SIZE EP TYPE
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* --- --------- --------- ---------
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* 0 2 64/1023 Control/Bulk/Iso/Interrupt
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* 1 2 64/1023 Control/Bulk/Iso/Interrupt
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* 2 2 64/1023 Control/Bulk/Iso/Interrupt
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* 3 2 64/1023 Control/Bulk/Iso/Interrupt
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* 4 2 64/1023 Control/Bulk/Iso/Interrupt
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* 5 2 64/1023 Control/Bulk/Iso/Interrupt
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* 6 2 64/1023 Control/Bulk/Iso/Interrupt
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* 7 2 64/1023 Control/Bulk/Iso/Interrupt
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*/
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#define SAM_USB_NENDPOINTS (8)
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#define SAM_USB_MAXPACKETSIZE(ep) (64)
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#define SAM_USB_NBANKS(ep) (2)
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#define SAM_USB_CONTROL(ep) (true)
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#define SAM_USB_BULK(ep) (true)
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#define SAM_USB_ISOCHRONOUS(ep) (true)
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#define SAM_USB_INTERRUPT(ep) (true)
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/* USB register offsets ********************************************************************/
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/* Common USB Device/Host Register Offsets */
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File diff suppressed because it is too large
Load Diff
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@ -0,0 +1,99 @@
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/******************************************************************************
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* arch/arm/src/samdl/sam_usb.h
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*
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* Copyright (C) 2015 Filament - www.filament.com
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* Copyright (C) 2015 Offcode Ltd. All rights reserved.
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* Author: Janne Rosberg <janne@offcode.fi>
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*
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* This driver is derived from the SAM34 UDP driver:
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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_SAMDL_SAM_USB_H
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#define __ARCH_ARM_SRC_SAMDL_SAM_USB_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 <nuttx/usb/usbdev.h>
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#include <stdint.h>
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#include "chip.h"
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#include "chip/saml_usb.h"
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/*****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifndef __ASSEMBLY__
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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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* Name: sam_usb_suspend
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*
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* Description:
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* Board logic must provide the sam_usb_suspend logic if the USB driver is
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* used. This function is called whenever the USB enters or leaves
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* suspend mode.
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*
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* When 'resume' is false, this function call provides an opportunity to
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* perform board-specific power-saving actions so that less power is consumed
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* while the USB is suspended.
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*
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* XXX:
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* Certain power-saving operations are performed by the UDP driver when it
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* enters suspend mode: The USB device peripheral clocks are be switched off.
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* MCK and UDPCK are switched off and the USB transceiver is disabled.
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*
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* When 'resume' is true, normal clocking and operations must all be restored.
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*
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*****************************************************************************/
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void sam_udp_suspend(FAR struct usbdev_s *dev, bool resume);
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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_SAMDL_SAM_USB_H */
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@ -480,6 +480,19 @@
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#define BOARD_SERCOM5_FREQUENCY BOARD_GCLK0_FREQUENCY
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/* USB definitions ******************************************************************/
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/* This is the source clock generator for the GCLK_USB clock
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*/
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#define BOARD_USB_GCLKGEN 0
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#define BOARD_USB_FREQUENCY BOARD_GCLK0_FREQUENCY
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/* default USB Pad calibration (not used yet by USB driver) */
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#define BOARD_USB_PADCAL_P 29
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#define BOARD_USB_PADCAL_N 5
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#define BOARD_USB_PADCAL_TRIM 3
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/* LED definitions ******************************************************************/
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/* There are three LEDs on board the SAMD21 Xplained Pro board: The EDBG
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* controls two of the LEDs, a power LED and a status LED. There is only
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@ -604,6 +604,19 @@
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#define BOARD_SERCOM5_FREQUENCY BOARD_GCLK0_FREQUENCY
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/* USB definitions ******************************************************************/
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/* This is the source clock generator for the GCLK_USB clock
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*/
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#define BOARD_USB_GCLKGEN 0
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#define BOARD_USB_FREQUENCY BOARD_GCLK0_FREQUENCY
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/* default USB Pad calibration (not used yet by USB driver) */
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#define BOARD_USB_PADCAL_P 29
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#define BOARD_USB_PADCAL_N 5
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#define BOARD_USB_PADCAL_TRIM 3
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/* LED definitions ******************************************************************/
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/* There are three LEDs on board the SAML21 Xplained Pro board: The EDBG
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* controls two of the LEDs, a power LED and a status LED. There is only
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