A little more STM32 USB host logic

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5029 42af7a65-404d-4744-a932-0658087f49c3

configs/stm3220g-eval/src/stm3220g-internal.h

@@ -240,7 +240,7 @@ void weak_function stm32_usbinitialize(void);
  ****************************************************************************************************/
 
 #if defined(CONFIG_STM32_OTGFS) && defined(CONFIG_USBHOST)
-void stm32_usbhost_initialize(void);
+int stm32_usbhost_initialize(void);
 #endif
 
 /****************************************************************************************************

configs/stm3220g-eval/src/up_nsh.c

@@ -148,25 +148,22 @@ int nsh_archinitialize(void)
 #ifdef CONFIG_STM32_SPI1
   /* Get the SPI port */
 
-  message("nsh_archinitialize: Initializing SPI port 1\n");
   spi = up_spiinitialize(1);
   if (!spi)
     {
       message("nsh_archinitialize: Failed to initialize SPI port 0\n");
       return -ENODEV;
     }
-  message("nsh_archinitialize: Successfully initialized SPI port 0\n");
 
   /* Now bind the SPI interface to the M25P64/128 SPI FLASH driver */
 
-  message("nsh_archinitialize: Bind SPI to the SPI flash driver\n");
   mtd = m25p_initialize(spi);
   if (!mtd)
     {
       message("nsh_archinitialize: Failed to bind SPI port 0 to the SPI FLASH driver\n");
       return -ENODEV;
     }
-  message("nsh_archinitialize: Successfully bound SPI port 0 to the SPI FLASH driver\n");
+
 #warning "Now what are we going to do with this SPI FLASH driver?"
 #endif
 
@@ -187,15 +184,12 @@ int nsh_archinitialize(void)
 
   /* Now bind the SDIO interface to the MMC/SD driver */
 
-  message("nsh_archinitialize: Bind SDIO to the MMC/SD driver, minor=%d\n",
-          CONFIG_NSH_MMCSDMINOR);
   ret = mmcsd_slotinitialize(CONFIG_NSH_MMCSDMINOR, sdio);
   if (ret != OK)
     {
       message("nsh_archinitialize: Failed to bind SDIO to the MMC/SD driver: %d\n", ret);
       return ret;
     }
-  message("nsh_archinitialize: Successfully bound SDIO to the MMC/SD driver\n");
   
   /* Then let's guess and say that there is a card in the slot.  I need to check to
    * see if the STM3220G-EVAL board supports a GPIO to detect if there is a card in
@@ -204,5 +198,19 @@ int nsh_archinitialize(void)
 
    sdio_mediachange(sdio, true);
 #endif
+
+  /* Initialize USB host operation.  stm32_usbhost_initialize() starts a thread
+   * will monitor for USB connection and disconnection events.
+   */
+
+#if defined(CONFIG_STM32_OTGFS) && defined(CONFIG_USBHOST)
+  ret = stm32_usbhost_initialize();
+  if (ret != OK)
+    {
+      message("nsh_archinitialize: Failed to initialize USB host: %d\n", ret);
+      return ret;
+    }
+#endif
+
   return OK;
 }

configs/stm3220g-eval/src/up_usb.c

@@ -46,6 +46,7 @@
 #include <debug.h>
 
 #include <nuttx/usb/usbdev.h>
+#include <nuttx/usb/usbhost.h>
 #include <nuttx/usb/usbdev_trace.h>
 
 #include "up_arch.h"
@@ -65,10 +66,67 @@
 #  undef HAVE_USB
 #endif
 
+#ifndef CONFIG_USBHOST_DEFPRIO
+#  define CONFIG_USBHOST_DEFPRIO 50
+#endif
+
+#ifndef CONFIG_USBHOST_STACKSIZE
+#  define CONFIG_USBHOST_STACKSIZE 1024
+#endif
+
+/************************************************************************************
+ * Private Data
+ ************************************************************************************/
+
+#ifdef CONFIG_NSH_HAVEUSBHOST
+static struct usbhost_driver_s *g_drvr;
+#endif
+
 /************************************************************************************
  * Private Functions
  ************************************************************************************/
 
+/****************************************************************************
+ * Name: usbhost_waiter
+ *
+ * Description:
+ *   Wait for USB devices to be connected.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_NSH_HAVEUSBHOST
+static int usbhost_waiter(int argc, char *argv[])
+{
+  bool connected = false;
+  int ret;
+
+  uvdbg("Running\n");
+  for (;;)
+    {
+      /* Wait for the device to change state */
+
+      ret = DRVR_WAIT(g_drvr, connected);
+      DEBUGASSERT(ret == OK);
+
+      connected = !connected;
+      uvdbg("%s\n", connected ? "connected" : "disconnected");
+
+      /* Did we just become connected? */
+
+      if (connected)
+        {
+          /* Yes.. enumerate the newly connected device */
+
+          (void)DRVR_ENUMERATE(g_drvr);
+        }
+    }
+
+  /* Keep the compiler from complaining */
+
+  return 0;
+}
+#endif
+
 /************************************************************************************
  * Public Functions
  ************************************************************************************/
@@ -106,9 +164,39 @@ void stm32_usbinitialize(void)
  ***********************************************************************************/
 
 #ifdef CONFIG_USBHOST
-void stm32_usbhost_initialize(void)
+int stm32_usbhost_initialize(void)
 {
-#warning "Missing logic"
+  int pid;
+  int ret;
+
+  /* First, register all of the class drivers needed to support the drivers
+   * that we care about:
+   */
+
+  uvdbg("Register class drivers\n");
+  ret = usbhost_storageinit();
+  if (ret != OK)
+    {
+      udbg("Failed to register the mass storage class\n");
+    }
+
+  /* Then get an instance of the USB host interface */
+
+  uvdbg("Initialize USB host\n");
+  g_drvr = usbhost_initialize(0);
+  if (g_drvr)
+    {
+      /* Start a thread to handle device connection. */
+
+      uvdbg("Start usbhost_waiter\n");
+
+      pid = TASK_CREATE("usbhost", CONFIG_USBHOST_DEFPRIO,
+                        CONFIG_USBHOST_STACKSIZE,
+                        (main_t)usbhost_waiter, (const char **)NULL);
+      return pid < 0 ? -ENOEXEC : OK;
+    }
+
+  return -ENODEV;
 }
 #endif