rename subfolder source to src

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diff --git a/src/host/hcd.h b/src/host/hcd.h
new file mode 100644
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+/**************************************************************************/

+/*!

+    @file     hcd.h

+    @author   hathach (tinyusb.org)

+

+    @section LICENSE

+

+    Software License Agreement (BSD License)

+

+    Copyright (c) 2013, hathach (tinyusb.org)

+    All rights reserved.

+

+    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 of the copyright holders 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 ''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 HOLDER 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.

+

+	  This file is part of the tinyusb stack.

+*/

+/**************************************************************************/

+

+/** \ingroup group_usbh

+ * \defgroup Group_HCD Host Controller Driver (HCD)

+ *  @{ */

+

+#ifndef _TUSB_HCD_H_

+#define _TUSB_HCD_H_

+

+#ifdef __cplusplus

+ extern "C" {

+#endif

+

+#include <common/tusb_common.h>

+

+#if MODE_HOST_SUPPORTED

+// Max number of endpoints per device

+enum {

+  HCD_MAX_ENDPOINT = CFG_TUSB_HOST_HUB + CFG_TUSB_HOST_HID_KEYBOARD + CFG_TUSB_HOST_HID_MOUSE + CFG_TUSB_HOST_HID_GENERIC +

+                     CFG_TUSB_HOST_MSC*2 + CFG_TUSB_HOST_CDC*3,

+

+  HCD_MAX_XFER     = HCD_MAX_ENDPOINT*2,

+};

+#endif

+

+//--------------------------------------------------------------------+

+// MACRO CONSTANT TYPEDEF

+//--------------------------------------------------------------------+

+typedef struct {

+  uint8_t dev_addr;

+  uint8_t xfer_type;

+  uint8_t index;

+  uint8_t reserved;

+} pipe_handle_t;

+

+static inline bool pipehandle_is_valid(pipe_handle_t pipe_hdl) ATTR_CONST ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;

+static inline bool pipehandle_is_valid(pipe_handle_t pipe_hdl)

+{

+  return pipe_hdl.dev_addr > 0;

+}

+

+static inline bool pipehandle_is_equal(pipe_handle_t x, pipe_handle_t y) ATTR_CONST ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;

+static inline bool pipehandle_is_equal(pipe_handle_t x, pipe_handle_t y)

+{

+  return (x.dev_addr == y.dev_addr) && (x.xfer_type == y.xfer_type) && (x.index == y.index);

+}

+

+//--------------------------------------------------------------------+

+// USBH-HCD API

+//--------------------------------------------------------------------+

+tusb_error_t hcd_init(void) ATTR_WARN_UNUSED_RESULT;

+void hal_hcd_isr(uint8_t hostid);

+

+//--------------------------------------------------------------------+

+// PIPE API

+//--------------------------------------------------------------------+

+// TODO control xfer should be used via usbh layer

+tusb_error_t  hcd_pipe_control_open(uint8_t dev_addr, uint8_t max_packet_size) ATTR_WARN_UNUSED_RESULT;

+tusb_error_t  hcd_pipe_control_xfer(uint8_t dev_addr, tusb_control_request_t const * p_request, uint8_t data[]) ATTR_WARN_UNUSED_RESULT;

+tusb_error_t  hcd_pipe_control_close(uint8_t dev_addr) ATTR_WARN_UNUSED_RESULT;

+

+pipe_handle_t hcd_pipe_open(uint8_t dev_addr, tusb_desc_endpoint_t const * endpoint_desc, uint8_t class_code) ATTR_WARN_UNUSED_RESULT;

+tusb_error_t  hcd_pipe_queue_xfer(pipe_handle_t pipe_hdl, uint8_t buffer[], uint16_t total_bytes) ATTR_WARN_UNUSED_RESULT; // only queue, not transferring yet

+tusb_error_t  hcd_pipe_xfer(pipe_handle_t pipe_hdl, uint8_t buffer[], uint16_t total_bytes, bool int_on_complete)  ATTR_WARN_UNUSED_RESULT;

+tusb_error_t  hcd_pipe_close(pipe_handle_t pipe_hdl) /*ATTR_WARN_UNUSED_RESULT*/;

+

+bool hcd_pipe_is_busy(pipe_handle_t pipe_hdl) ATTR_PURE;

+bool hcd_pipe_is_error(pipe_handle_t pipe_hdl) ATTR_PURE;

+bool hcd_pipe_is_stalled(pipe_handle_t pipe_hdl) ATTR_PURE; // stalled also counted as error

+

+uint8_t hcd_pipe_get_endpoint_addr(pipe_handle_t pipe_hdl) ATTR_PURE;

+tusb_error_t hcd_pipe_clear_stall(pipe_handle_t pipe_hdl);

+

+#if 0

+tusb_error_t hcd_pipe_cancel()ATTR_WARN_UNUSED_RESULT;

+#endif

+

+//--------------------------------------------------------------------+

+// PORT API

+//--------------------------------------------------------------------+

+/// return the current connect status of roothub port

+bool hcd_port_connect_status(uint8_t hostid) ATTR_PURE ATTR_WARN_UNUSED_RESULT; // TODO make inline if possible

+void hcd_port_reset(uint8_t hostid);

+tusb_speed_t hcd_port_speed_get(uint8_t hostid) ATTR_PURE ATTR_WARN_UNUSED_RESULT; // TODO make inline if possible

+void hcd_port_unplug(uint8_t hostid); // called by usbh to instruct hcd that it can execute unplug procedure

+

+#ifdef __cplusplus

+ }

+#endif

+

+#endif /* _TUSB_HCD_H_ */

+

+/// @}