296 lines
11 KiB
C
296 lines
11 KiB
C
/****************************************************************************
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* drivers/usbdev/cdcacm.h
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*
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* Copyright (C) 2011-2012, 2015, 2017 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 __DRIVERS_USBDEV_CDCACM_H
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#define __DRIVERS_USBDEV_CDCACM_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 <stdint.h>
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#include <nuttx/usb/usbdev.h>
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#include <nuttx/usb/cdc.h>
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#include <nuttx/usb/usbdev_trace.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/* If the serial device is configured as part of a composite device than both
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* CONFIG_USBDEV_COMPOSITE and CONFIG_CDCACM_COMPOSITE must be defined.
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*/
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#ifndef CONFIG_USBDEV_COMPOSITE
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# undef CONFIG_CDCACM_COMPOSITE
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#endif
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#if defined(CONFIG_CDCACM_COMPOSITE) && !defined(CONFIG_CDCACM_STRBASE)
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# define CONFIG_CDCACM_STRBASE (0)
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#endif
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#if defined(CONFIG_CDCACM_COMPOSITE) && !defined(CONFIG_COMPOSITE_IAD)
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# warning "CONFIG_COMPOSITE_IAD may be needed"
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#endif
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/* Packet and request buffer sizes */
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#ifndef CONFIG_CDCACM_COMPOSITE
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# ifndef CONFIG_CDCACM_EP0MAXPACKET
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# define CONFIG_CDCACM_EP0MAXPACKET 64
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# endif
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#endif
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/* Interface IDs. If the serial driver is built as a component of a composite
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* device, then the interface IDs may need to be offset.
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*/
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#ifndef CONFIG_CDCACM_COMPOSITE
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# undef CONFIG_CDCACM_IFNOBASE
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# define CONFIG_CDCACM_IFNOBASE (0)
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#endif
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#ifndef CONFIG_CDCACM_IFNOBASE
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# define CONFIG_CDCACM_IFNOBASE (0)
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#endif
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/* Descriptors **************************************************************/
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/* These settings are not modifiable via the NuttX configuration */
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#define CDC_VERSIONNO 0x0110 /* CDC version number 1.10 (BCD) */
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#define CDCACM_CONFIGIDNONE (0) /* Config ID means to return to address mode */
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/* Interface IDs:
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*
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* CDCACM_NINTERFACES Two interfaces
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* CDCACM_NOTIFID ID of the notifier interface
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* CDCACM_NOTALTIFID No alternate for the notifier interface
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* CDCACM_DATAIFID ID of the data interface
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* CDCACM_DATAALTIFID No alternate for the data interface
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*/
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#define CDCACM_NOTALTIFID (0)
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#define CDCACM_DATAALTIFID (0)
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/* Buffer big enough for any of our descriptors (the config descriptor is the
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* biggest).
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*/
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#define CDCACM_MXDESCLEN (64)
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#define CDCACM_MAXSTRLEN (CDCACM_MXDESCLEN-2)
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/* Device descriptor values */
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#define CDCACM_VERSIONNO (0x0101) /* Device version number 1.1 (BCD) */
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/* String language */
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#define CDCACM_STR_LANGUAGE (0x0409) /* en-us */
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/* Descriptor strings. If there serial device is part of a composite device
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* then the manufacturer, product, and serial number strings will be provided
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* by the composite logic.
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*/
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#ifndef CONFIG_CDCACM_COMPOSITE
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# define CDCACM_MANUFACTURERSTRID (1)
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# define CDCACM_PRODUCTSTRID (2)
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# define CDCACM_SERIALSTRID (3)
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# define CDCACM_CONFIGSTRID (4)
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# define CDCACM_LASTBASESTRID (4)
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# define CDCACM_STRBASE (0)
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#else
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# define CDCACM_STRBASE CONFIG_CDCACM_STRBASE
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# define CDCACM_LASTBASESTRID CONFIG_CDCACM_STRBASE
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#endif
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/* These string IDs only exist if a user-defined string is provided */
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#ifdef CONFIG_CDCACM_NOTIFSTR
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# define CDCACM_NOTIFSTRID (CDCACM_LASTBASESTRID + 1)
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#else
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# define CDCACM_NOTIFSTRID CDCACM_LASTBASESTRID
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#endif
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#ifdef CONFIG_CDCACM_DATAIFSTR
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# define CDCACM_DATAIFSTRID (CDCACM_NOTIFSTRID + 1)
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#else
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# define CDCACM_DATAIFSTRID CDCACM_NOTIFSTRID
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#endif
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#define CDCACM_LASTSTRID CDCACM_DATAIFSTRID
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#define CDCACM_NSTRIDS (CDCACM_LASTSTRID - CDCACM_STRBASE)
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/* Endpoint configuration ****************************************************/
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#define CDCACM_MKEPINTIN(desc) (USB_DIR_IN | (desc)->epno[CDCACM_EP_INTIN_IDX])
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#define CDCACM_EPINTIN_ATTR (USB_EP_ATTR_XFER_INT)
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#define CDCACM_MKEPBULKIN(desc) (USB_DIR_IN | (desc)->epno[CDCACM_EP_BULKIN_IDX])
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#define CDCACM_EPOUTBULK_ATTR (USB_EP_ATTR_XFER_BULK)
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#define CDCACM_MKEPBULKOUT(desc) ((desc)->epno[CDCACM_EP_BULKOUT_IDX])
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#define CDCACM_EPINBULK_ATTR (USB_EP_ATTR_XFER_BULK)
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/* Device driver definitions ************************************************/
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/* A CDC/ACM device is specific by a minor number in the range of 0-255.
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* This maps to a character device at /dev/ttyACMx, x=0..255.
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*/
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#define CDCACM_DEVNAME_FORMAT "/dev/ttyACM%d"
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#define CDCACM_DEVNAME_SIZE 16
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/* Misc Macros **************************************************************/
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/* MIN/MAX macros */
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#ifndef MIN
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# define MIN(a,b) ((a)<(b)?(a):(b))
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#endif
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#ifndef MAX
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# define MAX(a,b) ((a)>(b)?(a):(b))
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#endif
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/* Trace values *************************************************************/
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#define CDCACM_CLASSAPI_SETUP TRACE_EVENT(TRACE_CLASSAPI_ID, USBSER_TRACECLASSAPI_SETUP)
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#define CDCACM_CLASSAPI_SHUTDOWN TRACE_EVENT(TRACE_CLASSAPI_ID, USBSER_TRACECLASSAPI_SHUTDOWN)
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#define CDCACM_CLASSAPI_ATTACH TRACE_EVENT(TRACE_CLASSAPI_ID, USBSER_TRACECLASSAPI_ATTACH)
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#define CDCACM_CLASSAPI_DETACH TRACE_EVENT(TRACE_CLASSAPI_ID, USBSER_TRACECLASSAPI_DETACH)
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#define CDCACM_CLASSAPI_IOCTL TRACE_EVENT(TRACE_CLASSAPI_ID, USBSER_TRACECLASSAPI_IOCTL)
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#define CDCACM_CLASSAPI_RECEIVE TRACE_EVENT(TRACE_CLASSAPI_ID, USBSER_TRACECLASSAPI_RECEIVE)
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#define CDCACM_CLASSAPI_RXINT TRACE_EVENT(TRACE_CLASSAPI_ID, USBSER_TRACECLASSAPI_RXINT)
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#define CDCACM_CLASSAPI_RXAVAILABLE TRACE_EVENT(TRACE_CLASSAPI_ID, USBSER_TRACECLASSAPI_RXAVAILABLE)
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#define CDCACM_CLASSAPI_SEND TRACE_EVENT(TRACE_CLASSAPI_ID, USBSER_TRACECLASSAPI_SEND)
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#define CDCACM_CLASSAPI_TXINT TRACE_EVENT(TRACE_CLASSAPI_ID, USBSER_TRACECLASSAPI_TXINT)
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#define CDCACM_CLASSAPI_TXREADY TRACE_EVENT(TRACE_CLASSAPI_ID, USBSER_TRACECLASSAPI_TXREADY)
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#define CDCACM_CLASSAPI_TXEMPTY TRACE_EVENT(TRACE_CLASSAPI_ID, USBSER_TRACECLASSAPI_TXEMPTY)
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#define CDCACM_CLASSAPI_FLOWCONTROL TRACE_EVENT(TRACE_CLASSAPI_ID, USBSER_TRACECLASSAPI_FLOWCONTROL)
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/****************************************************************************
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* Public Types
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****************************************************************************/
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enum cdcacm_epdesc_e
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{
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CDCACM_EPINTIN = 0, /* Interrupt IN endpoint descriptor */
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CDCACM_EPBULKOUT, /* Bulk OUT endpoint descriptor */
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CDCACM_EPBULKIN /* Bulk IN endpoint descriptor */
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: cdcacm_mkstrdesc
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*
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* Description:
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* Construct a string descriptor
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*
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****************************************************************************/
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int cdcacm_mkstrdesc(uint8_t id, struct usb_strdesc_s *strdesc);
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/****************************************************************************
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* Name: cdcacm_getdevdesc
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*
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* Description:
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* Return a pointer to the raw device descriptor
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*
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****************************************************************************/
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#ifndef CONFIG_CDCACM_COMPOSITE
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FAR const struct usb_devdesc_s *cdcacm_getdevdesc(void);
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#endif
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/****************************************************************************
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* Name: cdcacm_copy_epdesc
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*
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* Description:
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* Copies the requested Endpoint Description into the buffer given.
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* Returns the number of Bytes filled in (sizeof(struct usb_epdesc_s)).
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*
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****************************************************************************/
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int cdcacm_copy_epdesc(enum cdcacm_epdesc_e epid,
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FAR struct usb_epdesc_s *epdesc,
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FAR struct usbdev_devinfo_s *devinfo,
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bool hispeed);
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/****************************************************************************
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* Name: cdcacm_mkcfgdesc
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*
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* Description:
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* Construct the configuration descriptor
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*
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****************************************************************************/
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#ifdef CONFIG_USBDEV_DUALSPEED
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int16_t cdcacm_mkcfgdesc(FAR uint8_t *buf,
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FAR struct usbdev_devinfo_s *devinfo,
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uint8_t speed, uint8_t type);
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#else
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int16_t cdcacm_mkcfgdesc(FAR uint8_t *buf,
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FAR struct usbdev_devinfo_s *devinfo);
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#endif
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/****************************************************************************
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* Name: cdcacm_getqualdesc
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*
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* Description:
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* Return a pointer to the raw qual descriptor
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*
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****************************************************************************/
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#if !defined(CONFIG_CDCACM_COMPOSITE) && defined(CONFIG_USBDEV_DUALSPEED)
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FAR const struct usb_qualdesc_s *cdcacm_getqualdesc(void);
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#endif
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#endif /* __DRIVERS_USBDEV_CDCACM_H */
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