Fix SPI SD card detect logic; Fix AVR USB device interrupt initialization

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3740 42af7a65-404d-4744-a932-0658087f49c3

ChangeLog

@@ -1834,7 +1834,7 @@
 	* drivers/mtd/ramtron.c, net/net_checksd.c, fs/fs_fdopen.c, and include/nuttx/mii.h:
 	  Several structural changes made to get a clean compile under the ez80 ZDS-II
 	  toolchain (no design changes).
-	* drivers/usbhost/usbhost_storage.c:  Incorpated bugfixes reported by Sheref H.
+	* drivers/usbhost/usbhost_storage.c: Incorpated bugfixes reported by Sheref H.
 	  Younan:  (1) Read capacity logic read largest block, not the number of blocks
 	  and was, therefore, off by one, and (2) Some devices stall of get Max LUN request
 	  if they support only a single LUN.  Logic now assumes a single LUN if the get
@@ -1843,9 +1843,12 @@
 	  a new configuration option to support extracting strings from FLASH or EEPROM
 	  or other memories where the string data cannot be accessed by simply de-referencing
 	  a string pointer.
-	* arch/sim/src/up_romgetc.c:  Used to test the basic logic to access strings
+	* arch/sim/src/up_romgetc.c: Used to test the basic logic to access strings
 	  without directly de-referencing a string pointer.
-	* arch/avr/src/avr/up_romget.c:  Used to access strings that lie in the first
-	  64Kb of FLASH.
-
-
+	* arch/avr/src/avr/up_romget.c: Used to access strings that lie in the first
+	  64Kb of FLASH (But I still haven't figured out how to get strings to reside in
+	  FLASH without using the PROGMEM attribute).
+	* configs/teensy/src/up_spi.c: Correct reading of SD CD and WP pins (was reading
+	  the wrong register.  AVR SPI now appears to be functional.
+	* arch/avr/src/at90usb/at90usb_usbdev.c: Correct USB initialization.  Interrupts
+	  were being enabled BEFORE the interrupt handler was attached.

arch/avr/src/at90usb/at90usb_usbdev.c

@@ -2745,14 +2745,6 @@ void up_usbinitialize(void)
 {
   usbtrace(TRACE_DEVINIT, 0);
 
-  /* Shutdown the USB interface to put it in a known initial state */
-
-  avr_usbshutdown();
-
-  /* Select USB device mode */
-
-  UHWCON |= (1 << UIMOD);
-
   /* Initialize the device state structure */
 
   memset(&g_usbdev, 0, sizeof(struct avr_usbdev_s));
@@ -2760,10 +2752,6 @@ void up_usbinitialize(void)
   g_usbdev.usbdev.ep0 = &g_usbdev.eplist[AVR_EP0].ep;
   g_usbdev.epavail    = AVR_ALL_EPS & ~(1 << AVR_EP0);
 
-  /* Reset the interface to force re-enumeration */
-
-  avr_usbreset();
-
   /* Attach USB controller general interrupt handler */
 
   if (irq_attach(AT90USB_IRQ_USBGEN, avr_geninterrupt) != 0)
@@ -2780,6 +2768,20 @@ void up_usbinitialize(void)
       goto errout;
     }
 
+  /* Shutdown the USB interface to put it in a known initial state */
+
+  avr_usbshutdown();
+
+  /* Select USB device mode */
+
+  UHWCON |= (1 << UIMOD);
+
+  /* Reset the interface to force re-enumeration (the reset operation
+   * enables interrupts.
+   */
+
+  avr_usbreset();
+
   /* Set the VBUS pad */
 
   USBCON |= (1 << OTGPADE);

configs/teensy/README.txt

@@ -183,7 +183,7 @@ Teensy SPI Connection
   -- ---- -- ------------------------- -------
   J2 NAME PIN NAME                     PAD
   -- ---- -- ------------------------- -------
-   1 VIN  -- Connected to USB +RV
+   1 VIN  -- Connected to USB +5V
    2 GND  -- Connected to USB GND
    3 3V3  -- Not used                  ---
    4 NC   -- Not used

configs/teensy/src/up_spi.c

@@ -179,7 +179,7 @@ void  avr_spiselect(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool select
 uint8_t avr_spistatus(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
 {
   uint8_t ret = 0;
-  uint8_t regval = PORTB;
+  uint8_t regval = PINB;
 
   /* Both the CD and WP pins are pull high by the AT90USB and will be
    * grounded it a card is inserted or write protected.

configs/teensy/usbstorage/defconfig

@@ -268,9 +268,9 @@ CONFIG_ARCH_LOWPUTC=y
 CONFIG_RR_INTERVAL=200
 CONFIG_SCHED_INSTRUMENTATION=n
 CONFIG_TASK_NAME_SIZE=0
-CONFIG_START_YEAR=2010
-CONFIG_START_MONTH=6
-CONFIG_START_DAY=17
+CONFIG_START_YEAR=2011
+CONFIG_START_MONTH=7
+CONFIG_START_DAY=2
 CONFIG_GREGORIAN_TIME=n
 CONFIG_JULIAN_TIME=n
 CONFIG_DEV_CONSOLE=y