The USB host driver has been verified on the STM32F4Discovery

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5067 42af7a65-404d-4744-a932-0658087f49c3

5 files changed, 62 insertions, 16 deletions

diff --git a/nuttx/configs/stm32f4discovery/README.txt b/nuttx/configs/stm32f4discovery/README.txt
index c2a269de3..93b8fee03 100755
--- a/nuttx/configs/stm32f4discovery/README.txt
+++ b/nuttx/configs/stm32f4discovery/README.txt
@@ -906,7 +906,7 @@ STM32F4Discovery-specific Configuration Options
      want to do that?
    CONFIG_STM32_USBHOST_REGDEBUG - Enable very low-level register access
      debug.  Depends on CONFIG_DEBUG.
-    CONFIG_STM32_USBHOST_PKTDUMP - Dump all incoming and outgoing USB
+   CONFIG_STM32_USBHOST_PKTDUMP - Dump all incoming and outgoing USB
      packets. Depends on CONFIG_DEBUG.
 
 Configurations
@@ -1066,19 +1066,65 @@ Where <subdir> is one of the following:
         you can still use certain kinds of debug output (see include/debug.h, all
         of the interfaces based on lib_lowprintf will work in this configuration).
 
-    8. USB OTG FS Device or Host Support
+    6. USB OTG FS Host Support.  The following changes will enable support for
+       a USB host on the STM32F4Discovery, including support for a mass storage
+       class driver:
  
-       CONFIG_USBDEV          - Enable USB device support, OR
-       CONFIG_USBHOST         - Enable USB host support (but not both)
+       CONFIG_USBDEV=n          - Make sure tht USB device support is disabled
+       CONFIG_USBHOST=y         - Enable USB host support
+       CONFIG_STM32_OTGFS=y     - Enable the STM32 USB OTG FS block
+       CONFIG_STM32_SYSCFG=y    - Needed for all USB OTF FS support
+       CONFIG_SCHED_WORKQUEUE=y - Worker thread support is required for the mass
+                                  storage class driver.
+       CONFIG_NSH_ARCHINIT=y    - Architecture specific USB initialization
+                                  is needed for NSH
+       CONFIG_FS_FAT=y          - Needed by the USB host mass storage class.
+
+       With those changes, you can use NSH with a FLASH pen driver as shown
+       belong.  Here NSH is started with nothing in the USB host slot:
+
+       NuttShell (NSH) NuttX-x.yy
+       nsh> ls /dev
+       /dev:
+        console
+        null
+        ttyS0
+
+       After inserting the FLASH drive, the /dev/sda appears and can be
+       mounted like this:
+
+       nsh> ls /dev
+       /dev:
+        console
+        null
+        sda
+        ttyS0
+       nsh> mount -t vfat /dev/sda /mnt/stuff
+       nsh> ls /mnt/stuff
+       /mnt/stuff:
+        -rw-rw-rw-   16236 filea.c
+
+       And files on the FLASH can be manipulated to standard interfaces:
+
+       nsh> echo "This is a test" >/mnt/stuff/atest.txt
+       nsh> ls /mnt/stuff
+       /mnt/stuff:
+        -rw-rw-rw-   16236 filea.c
+        -rw-rw-rw-      16 atest.txt
+       nsh> cat /mnt/stuff/atest.txt
+       This is a test
+       nsh> cp /mnt/stuff/filea.c fileb.c
+       nsh> ls /mnt/stuff
+       /mnt/stuff:
+        -rw-rw-rw-   16236 filea.c
+        -rw-rw-rw-      16 atest.txt
+        -rw-rw-rw-   16236 fileb.c
+
+       To prevent data loss, don't forget to un-mount the FLASH drive
+       before removing it:
+
+       nsh> umount /mnt/stuff
 
-       CONFIG_STM32_OTGFS     - Enable the STM32 USB OTG FS block
-       CONFIG_STM32_SYSCFG    - Needed for all USB OTF FS support
-
-       CONFIG_SCHED_WORKQUEUE - Worker thread support is required for the mass
-                                storage class (both host and device).
-       CONFIG_NSH_ARCHINIT    - Architecture specific USB initialization
-                                is needed
- 
   nxlines:
   ------
     An example using the NuttX graphics system (NX).   This example focuses on
diff --git a/nuttx/configs/stm32f4discovery/nsh/defconfig b/nuttx/configs/stm32f4discovery/nsh/defconfig
index dede37af1..69d4e717c 100644
--- a/nuttx/configs/stm32f4discovery/nsh/defconfig
+++ b/nuttx/configs/stm32f4discovery/nsh/defconfig
@@ -488,7 +488,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm32f4discovery/nxlines/defconfig b/nuttx/configs/stm32f4discovery/nxlines/defconfig
index 5bcfeec82..0e006f4a5 100644
--- a/nuttx/configs/stm32f4discovery/nxlines/defconfig
+++ b/nuttx/configs/stm32f4discovery/nxlines/defconfig
@@ -488,7 +488,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm32f4discovery/ostest/defconfig b/nuttx/configs/stm32f4discovery/ostest/defconfig
index 438694af2..dfdea14d5 100644
--- a/nuttx/configs/stm32f4discovery/ostest/defconfig
+++ b/nuttx/configs/stm32f4discovery/ostest/defconfig
@@ -461,7 +461,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm32f4discovery/pm/defconfig b/nuttx/configs/stm32f4discovery/pm/defconfig
index 58b7df7cb..799eea34c 100644
--- a/nuttx/configs/stm32f4discovery/pm/defconfig
+++ b/nuttx/configs/stm32f4discovery/pm/defconfig
@@ -489,7 +489,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4