From 7a40ec2647f06c37c6b8f0b8af2c17ba747f0aeb Mon Sep 17 00:00:00 2001
From: Scott Shawcroft <scott@tannewt.org>
Date: Wed, 7 Nov 2018 23:04:34 -0800
Subject: Split out the control endpoint logic

---
 src/device/control.h | 95 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 src/device/control.h

(limited to 'src/device/control.h')

diff --git a/src/device/control.h b/src/device/control.h
new file mode 100644
index 000000000..24f0d0a14
--- /dev/null
+++ b/src/device/control.h
@@ -0,0 +1,95 @@
+/**************************************************************************/
+/*!
+    @file     usbd.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_usbd
+ *  @{ */
+
+#ifndef _TUSB_CONTROL_H_
+#define _TUSB_CONTROL_H_
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#include "tusb.h"
+
+typedef enum {
+    CONTROL_STAGE_SETUP, // Waiting for a setup token.
+    CONTROL_STAGE_DATA, // In the process of sending or receiving data.
+    CONTROL_STAGE_STATUS // In the process of transmitting the STATUS ZLP.
+} control_stage_t;
+
+typedef struct {
+    control_stage_t current_stage;
+    tusb_control_request_t current_request;
+    uint16_t total_transferred;
+    uint8_t config;
+} control_t;
+
+CFG_TUSB_ATTR_USBRAM CFG_TUSB_MEM_ALIGN uint8_t _shared_control_buffer[64];
+
+tusb_error_t controld_process_setup_request(uint8_t rhport, tusb_control_request_t const * const p_request);
+
+// Callback when the configuration of the device is changed.
+tusb_error_t tud_control_set_config_cb(uint8_t rhport, uint8_t config_number);
+
+tusb_error_t tud_control_interface_control_cb(uint8_t rhport, uint8_t interface, tusb_control_request_t const * const p_request, uint16_t bytes_already_sent);
+
+//--------------------------------------------------------------------+
+// INTERNAL API
+//--------------------------------------------------------------------+
+
+void controld_init(void);
+tusb_error_t controld_open(uint8_t rhport, tusb_desc_interface_t const * p_interface_desc, uint16_t *p_length);
+
+// This tracks the state of a control request.
+tusb_error_t controld_process_setup_request(uint8_t rhport, tusb_control_request_t const * p_request);
+
+// This handles the actual request and its response.
+tusb_error_t controld_process_control_request(uint8_t rhport, tusb_control_request_t const * p_request, uint16_t bytes_already_sent);
+
+tusb_error_t controld_xfer_cb(uint8_t rhport, uint8_t edpt_addr, tusb_event_t event, uint32_t xferred_bytes);
+void controld_reset(uint8_t rhport);
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_CONTROL_H_ */
+
+/** @} */
-- 
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