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Tinkering with USB MSC device on PIC32 -- doesn't work

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4488 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2012-03-13 23:47:11 +00:00
parent 6a4ebcfd28
commit 054c444da3
6 changed files with 173 additions and 9 deletions
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56
configs/pic32-starterkit/README.txt
View File

@ -1115,3 +1115,59 @@ Where <subdir> is one of the following:
NOTES:
See the notes for the nsh configuration. Most also apply to the nsh2
configuration.
Using a RAM disk and the USB MSC device with nsh and nsh2
---------------------------------------------------------
Here is an experimental change to either examples/nsh or examples/nsh2
that will create a RAM disk and attempt to export that RAM disk as a
USB mass storage device.
1. Changes to nuttx/.config
a) Enable support for the PIC32 USB device
-CONFIG_PIC32MX_USBDEV=n
+CONFIG_PIC32MX_USBDEV=y
b) Enable NuttX USB device support
-CONFIG_USBDEV=n
+CONFIG_USBDEV=y
c) Enable the USB MSC class driver
-CONFIG_USBMSC=n
+CONFIG_USBMSC=y
d) Use a RAM disk (instead of an SD card) as the USB MSC logical unit:
-CONFIG_EXAMPLES_USBMSC_DEVPATH1="/dev/mmcsd0"
+CONFIG_EXAMPLES_USBMSC_DEVPATH1="/dev/ram0"
2. Changes to nuttx/.config.
a) Enable building of the examples/usbstorage:
-# CONFIGURED_APPS += examples/usbstorage
+ CONFIGURED_APPS += examples/usbstorage
3. When NSH first comes up, you must manually create the RAM disk
before exporting it:
a) Create a 64Kb RAM disk at /dev/ram0:
nsh> mkrd -s 512 128
b) Put a FAT file system on the RAM disk:
nsh> mkfatfs /dev/ram0
b) Now the 'msconn' command will connect to the host and
export /dev/ram0 as the USB logical unit:
nsh> msconn
NOTE: This modification is experimental and does not yet
work properly! However, the configuration is worth remembering
for future USB MSC testing.

9
configs/pic32-starterkit/nsh/defconfig
View File

@ -876,7 +876,7 @@ CONFIG_USBDEV_TRACE_NRECORDS=128
CONFIG_PL2303=n
CONFIG_PL2303_EPINTIN=1
CONFIG_PL2303_EPBULKOUT=2
CONFIG_PL2303_EPBULKIN=5
CONFIG_PL2303_EPBULKIN=3
CONFIG_PL2303_NWRREQS=4
CONFIG_PL2303_NRDREQS=4
CONFIG_PL2303_VENDORID=0x067b
@ -983,8 +983,8 @@ CONFIG_CDCACM_CONSOLE=n
#
CONFIG_USBMSC=n
CONFIG_USBMSC_EP0MAXPACKET=64
CONFIG_USBMSC_EPBULKOUT=2
CONFIG_USBMSC_EPBULKIN=5
CONFIG_USBMSC_EPBULKOUT=1
CONFIG_USBMSC_EPBULKIN=2
CONFIG_USBMSC_NRDREQS=2
CONFIG_USBMSC_NWRREQS=2
CONFIG_USBMSC_BULKINREQLEN=256
@ -1329,6 +1329,8 @@ CONFIG_EXAMPLES_USBSERIAL_TRACEINTERRUPTS=n
#
# Settings for examples/usbstorage
#
# CONFIG_EXAMPLES_USBMSC_BUILTIN
# Build the USBMSC storage example as an NSH built-in application.
# CONFIG_EXAMPLES_USBMSC_NLUNS
# Defines the number of logical units (LUNs) exported by the USB storage
# driver. Each LUN corresponds to one exported block driver (or partition
@ -1361,6 +1363,7 @@ CONFIG_EXAMPLES_USBSERIAL_TRACEINTERRUPTS=n
# CONFIG_EXAMPLES_USBMSC_TRACEINTERRUPTS
# Show interrupt-related events.
#
CONFIG_EXAMPLES_USBMSC_BUILTIN=y
CONFIG_EXAMPLES_USBMSC_NLUNS=1
CONFIG_EXAMPLES_USBMSC_DEVMINOR1=0
CONFIG_EXAMPLES_USBMSC_DEVPATH1="/dev/mmcsd0"

9
configs/pic32-starterkit/nsh2/defconfig
View File

@ -876,7 +876,7 @@ CONFIG_USBDEV_TRACE_NRECORDS=128
CONFIG_PL2303=n
CONFIG_PL2303_EPINTIN=1
CONFIG_PL2303_EPBULKOUT=2
CONFIG_PL2303_EPBULKIN=5
CONFIG_PL2303_EPBULKIN=3
CONFIG_PL2303_NWRREQS=4
CONFIG_PL2303_NRDREQS=4
CONFIG_PL2303_VENDORID=0x067b
@ -983,8 +983,8 @@ CONFIG_CDCACM_CONSOLE=n
#
CONFIG_USBMSC=n
CONFIG_USBMSC_EP0MAXPACKET=64
CONFIG_USBMSC_EPBULKOUT=2
CONFIG_USBMSC_EPBULKIN=5
CONFIG_USBMSC_EPBULKOUT=1
CONFIG_USBMSC_EPBULKIN=2
CONFIG_USBMSC_NRDREQS=2
CONFIG_USBMSC_NWRREQS=2
CONFIG_USBMSC_BULKINREQLEN=256
@ -1329,6 +1329,8 @@ CONFIG_EXAMPLES_USBSERIAL_TRACEINTERRUPTS=n
#
# Settings for examples/usbstorage
#
# CONFIG_EXAMPLES_USBMSC_BUILTIN
# Build the USBMSC storage example as an NSH built-in application.
# CONFIG_EXAMPLES_USBMSC_NLUNS
# Defines the number of logical units (LUNs) exported by the USB storage
# driver. Each LUN corresponds to one exported block driver (or partition
@ -1361,6 +1363,7 @@ CONFIG_EXAMPLES_USBSERIAL_TRACEINTERRUPTS=n
# CONFIG_EXAMPLES_USBMSC_TRACEINTERRUPTS
# Show interrupt-related events.
#
CONFIG_EXAMPLES_USBMSC_BUILTIN=y
CONFIG_EXAMPLES_USBMSC_NLUNS=1
CONFIG_EXAMPLES_USBMSC_DEVMINOR1=0
CONFIG_EXAMPLES_USBMSC_DEVPATH1="/dev/mmcsd0"

9
configs/pic32-starterkit/ostest/defconfig
View File

@ -878,7 +878,7 @@ CONFIG_USBDEV_TRACE_NRECORDS=128
CONFIG_PL2303=n
CONFIG_PL2303_EPINTIN=1
CONFIG_PL2303_EPBULKOUT=2
CONFIG_PL2303_EPBULKIN=5
CONFIG_PL2303_EPBULKIN=3
CONFIG_PL2303_NWRREQS=4
CONFIG_PL2303_NRDREQS=4
CONFIG_PL2303_VENDORID=0x067b
@ -985,8 +985,8 @@ CONFIG_CDCACM_CONSOLE=n
#
CONFIG_USBMSC=n
CONFIG_USBMSC_EP0MAXPACKET=64
CONFIG_USBMSC_EPBULKOUT=2
CONFIG_USBMSC_EPBULKIN=5
CONFIG_USBMSC_EPBULKOUT=1
CONFIG_USBMSC_EPBULKIN=2
CONFIG_USBMSC_NRDREQS=2
CONFIG_USBMSC_NWRREQS=2
CONFIG_USBMSC_BULKINREQLEN=256
@ -1331,6 +1331,8 @@ CONFIG_EXAMPLES_USBSERIAL_TRACEINTERRUPTS=n
#
# Settings for examples/usbstorage
#
# CONFIG_EXAMPLES_USBMSC_BUILTIN
# Build the USBMSC storage example as an NSH built-in application.
# CONFIG_EXAMPLES_USBMSC_NLUNS
# Defines the number of logical units (LUNs) exported by the USB storage
# driver. Each LUN corresponds to one exported block driver (or partition
@ -1363,6 +1365,7 @@ CONFIG_EXAMPLES_USBSERIAL_TRACEINTERRUPTS=n
# CONFIG_EXAMPLES_USBMSC_TRACEINTERRUPTS
# Show interrupt-related events.
#
CONFIG_EXAMPLES_USBMSC_BUILTIN=n
CONFIG_EXAMPLES_USBMSC_NLUNS=1
CONFIG_EXAMPLES_USBMSC_DEVMINOR1=0
CONFIG_EXAMPLES_USBMSC_DEVPATH1="/dev/mmcsd0"

4
configs/pic32-starterkit/src/Makefile
View File

@ -51,6 +51,10 @@ ifeq ($(CONFIG_NSH_ARCHINIT),y)
CSRCS += up_nsh.c
endif
ifeq ($(CONFIG_USBMSC),y)
CSRCS += up_usbmsc.c
endif
AOBJS = $(ASRCS:.S=$(OBJEXT))
COBJS = $(CSRCS:.c=$(OBJEXT))

95
configs/pic32-starterkit/src/up_usbmsc.c Normal file
View File

@ -0,0 +1,95 @@
/****************************************************************************
* configs/pic32-starterkit/src/up_usbmsc.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include "starterkit_internal.h"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/* Debug ********************************************************************/
#ifdef CONFIG_CPP_HAVE_VARARGS
# ifdef CONFIG_DEBUG
# define message(...) lib_lowprintf(__VA_ARGS__)
# define msgflush()
# else
# define message(...) printf(__VA_ARGS__)
# define msgflush() fflush(stdout)
# endif
#else
# ifdef CONFIG_DEBUG
# define message lib_lowprintf
# define msgflush()
# else
# define message printf
# define msgflush() fflush(stdout)
# endif
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: usbmsc_archinitialize
*
* Description:
* Perform architecture specific initialization as needed to establish
* the mass storage device that will be exported by the USB MSC device.
*
****************************************************************************/
int usbmsc_archinitialize(void)
{
/* If examples/usbmsc is built as an NSH command, then SD slot should
* already have been initized in nsh_archinitialize() (see up_nsh.c). In
* this case, there is nothing further to be done here.
*/
#ifndef CONFIG_EXAMPLES_USBMSC_BUILTIN
# warning "Missing Logic"
#endif /* CONFIG_EXAMPLES_USBMSC_BUILTIN */
return 0;
}