host port plugged isr detect, but control xfer not work

1 files changed, 31 insertions, 2 deletions

diff --git a/hw/bsp/ea4357/board_ea4357.c b/hw/bsp/ea4357/board_ea4357.c
index eb447518c..da3312467 100644
--- a/hw/bsp/ea4357/board_ea4357.c
+++ b/hw/bsp/ea4357/board_ea4357.c
@@ -182,7 +182,17 @@ void board_init(void)
     USBMODE_VBUS_HIGH = 1
   };
 
-  // USB0
+  /* USB0
+   * For USB Device operation; insert jumpers in position 1-2 in JP17/JP18/JP19. GPIO28 controls USB
+   * connect functionality and LED32 lights when the USB Device is connected. SJ4 has pads 1-2 shorted
+   * by default. LED33 is controlled by GPIO27 and signals USB-up state. GPIO54 is used for VBUS
+   * sensing.
+   * For USB Host operation; insert jumpers in position 2-3 in JP17/JP18/JP19. USB Host power is
+   * controlled via distribution switch U20 (found in schematic page 11). Signal GPIO26 is active low and
+   * enables +5V on VBUS2. LED35 light whenever +5V is present on VBUS2. GPIO55 is connected to
+   * status feedback from the distribution switch. GPIO54 is used for VBUS sensing. 15Kohm pull-down
+   * resistors are always active
+   */
 #if CFG_TUSB_RHPORT0_MODE
   Chip_USB0_Init();
 
@@ -193,13 +203,32 @@ void board_init(void)
   // Set mode
   #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
     LPC_USB0->USBMODE_H = USBMODE_HOST | (USBMODE_VBUS_HIGH << 5);
+
+    LPC_USB0->PORTSC1_D |= (1<<24); // FIXME force full speed for debugging
   #else // TODO OTG
     LPC_USB0->USBMODE_D = USBMODE_DEVICE;
     LPC_USB0->OTGSC = (1<<3) | (1<<0) /*| (1<<16)| (1<<24)| (1<<25)| (1<<26)| (1<<27)| (1<<28)| (1<<29)| (1<<30)*/;
   #endif
 #endif
 
-  // USB1
+  /* USB1
+   * When USB channel #1 is used as USB Host, 15Kohm pull-down resistors are needed on the USB data
+   * signals. These are activated inside the USB OTG chip (U31), and this has to be done via the I2C
+   * interface of GPIO52/GPIO53.
+   * J20 is the connector to use when USB Host is used. In order to provide +5V to the external USB
+   * device connected to this connector (J20), channel A of U20 must be enabled. It is enabled by default
+   * since SJ5 is normally connected between pin 1-2. LED34 lights green when +5V is available on J20.
+   * JP15 shall not be inserted. JP16 has no effect
+   *
+   * When USB channel #1 is used as USB Device, a 1.5Kohm pull-up resistor is needed on the USB DP
+   * data signal. There are two methods to create this. JP15 is inserted and the pull-up resistor is always
+   * enabled. Alternatively, the pull-up resistor is activated inside the USB OTG chip (U31), and this has to
+   * be done via the I2C interface of GPIO52/GPIO53. In the latter case, JP15 shall not be inserted.
+   * J19 is the connector to use when USB Device is used. Normally it should be a USB-B connector for
+   * creating a USB Device interface, but the mini-AB connector can also be used in this case. The status
+   * of VBUS can be read via U31.
+   * JP16 shall not be inserted.
+   */
 #if CFG_TUSB_RHPORT1_MODE
   Chip_USB1_Init();