| /* Copyright (c) 2013, 2015 The Linux Foundation. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of The Linux Foundation 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 "AS IS" AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| * 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. |
| */ |
| #ifndef _USB30_UDC_H |
| #define _USB30_UDC_H |
| |
| #include <bits.h> |
| #include <usb30_dwc.h> |
| #include <usb30_wrapper.h> |
| |
| #define UDC_DESC_SIZE_CONFIGURATION 9 |
| #define UDC_DESC_SIZE_INTERFACE 9 |
| #define UDC_DESC_SIZE_ENDPOINT 7 |
| #define UDC_DESC_SIZE_ENDPOINT_COMP 6 |
| |
| typedef enum |
| { |
| UDC_DEFAULT_STATE, |
| UDC_ADDRESSED_STATE, |
| UDC_CONFIGURED_STATE, |
| } usb_state_t; |
| |
| typedef enum |
| { |
| ENDPOINT_HALT = 0, |
| FUNCTION_SUSPEND = 0, |
| U1_ENABLE = 48, |
| U2_ENABLE = 49, |
| LTM_ENABLE = 50, |
| } udc_feature_select_t; |
| |
| typedef enum |
| { |
| UDC_DESC_SPEC_20 = BIT(0), |
| UDC_DESC_SPEC_30 = BIT(1), |
| } udc_desc_spec_t; |
| |
| typedef enum |
| { |
| UDC_SPEED_LS, |
| UDC_SPEED_FS, |
| UDC_SPEED_HS, |
| UDC_SPEED_SS |
| } udc_device_speed_t; |
| |
| typedef struct |
| { |
| usb_wrapper_dev_t *wrapper_dev; /* store the wrapper device ptr */ |
| dwc_dev_t *dwc; /* store the dwc device ptr */ |
| |
| struct udc_gadget *gadget; /* store the registered gadget. */ |
| struct udc_descriptor *desc_list; /* linked list of all descriptors: device, config, string, language table, bos etc. */ |
| struct udc_endpoint *ept_list; /* linked list of all eps */ |
| uint32_t ept_alloc_table; /* keep track of which usb EPs are allocated. Initialized to assume EP0 In/OUT are already allocated.*/ |
| uint32_t next_string_id; /* keeps track of string id for string descriptor */ |
| void *ctrl_rx_buf; /* buffer pointer to receive ctrl data. */ |
| void *ctrl_tx_buf; /* buffer pointer to send ctrl data. */ |
| |
| |
| udc_device_speed_t speed; /* keeps track of usb connection speed. */ |
| uint8_t config_selected; /* keeps track of the selected configuration */ |
| |
| struct udc_request *queued_req; /* pointer to the currently queued request. NULL indicates no request is queued. */ |
| usb_state_t usb_state; /* USB state, default, addressed & configured */ |
| |
| } udc_t; |
| |
| |
| struct udc_descriptor { |
| struct udc_descriptor *next; |
| uint16_t tag; /* ((TYPE << 8) | NUM) */ |
| uint16_t len; /* total length */ |
| udc_desc_spec_t spec; /* bit map of spec that this desc complies with. */ |
| uint8_t data[0]; /* descriptor contents. */ |
| }; |
| |
| struct udc_endpoint { |
| struct udc_endpoint *next; |
| uint8_t num; |
| uint8_t type; |
| uint8_t in; |
| uint16_t maxpkt; |
| uint32_t maxburst; /* max pkts that this ep can transfer before waiting for ack. */ |
| |
| dwc_trb_t *trb; /* pointer to buffer used for TRB chain */ |
| uint32_t trb_count; /* size of TRB chain. */ |
| }; |
| |
| struct usb_qualifier_desc { |
| uint8_t bLength; |
| uint8_t bDescriptorType; |
| uint16_t bcdUSB; |
| uint8_t bDeviceClass; |
| uint8_t bDeviceSubClass; |
| uint8_t bDeviceProtocol; |
| uint8_t bMaxPacketSize0; |
| uint8_t bNumConfigurations; |
| uint8_t bReserved; |
| }__PACKED; |
| |
| struct udc_request *usb30_udc_request_alloc(void); |
| struct udc_endpoint *usb30_udc_endpoint_alloc(unsigned type, unsigned maxpkt); |
| void usb30_udc_request_free(struct udc_request *req); |
| int usb30_udc_request_queue(struct udc_endpoint *ept, struct udc_request *req); |
| int usb30_udc_request_cancel(struct udc_endpoint *ept, struct udc_request *req); |
| |
| int usb30_udc_init(struct udc_device *devinfo); |
| int usb30_udc_register_gadget(struct udc_gadget *gadget); |
| int usb30_udc_start(void); |
| int usb30_udc_stop(void); |
| #endif |