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- /* Copyright (c) 2011,2012 Simon Schubert <[email protected]>.
- * Modifications by Jacob Alexander 2014 <[email protected]>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
- #ifndef __USB_INTERNAL_H
- #define __USB_INTERNAL_H
-
- /**
- * Internal driver structures
- */
-
- /**
- * USB state machine
- * =================
- *
- * Device configuration states:
- *
- * Attached <-> Powered
- * Powered -(reset)-> Default
- * Default -(SET_ADDRESS)-> Address
- * Address -(SET_CONFIGURATION)-> Configured
- * Configured -(SET_CONFIGURATION 0)-> Address
- * Address -(SET_ADDRESS 0)-> Default
- * [Default, Configured, Address] -(reset)-> Default
- */
-
- // ----- Defines -----
-
- #ifndef USB_MAX_EP
- #define USB_MAX_EP 16
- #endif
-
-
-
- // ----- Structs -----
-
- struct usbd_ep_pipe_state_t {
- enum usb_ep_pingpong pingpong; /* next desc to use */
- enum usb_data01 data01;
- size_t transfer_size;
- size_t pos;
- uint8_t *data_buf;
- const uint8_t *copy_source;
- int short_transfer;
- ep_callback_t callback;
- void *callback_data;
- size_t ep_maxsize;
- /* constant */
- int ep_num;
- enum usb_ep_dir ep_dir;
- };
-
- struct usbd_ep_state_t {
- union {
- struct usbd_ep_pipe_state_t pipe[2];
- struct {
- struct usbd_ep_pipe_state_t rx;
- struct usbd_ep_pipe_state_t tx;
- };
- };
- };
-
- struct usbd_t {
- struct usbd_function_ctx_header functions;
- struct usbd_function control_function;
- const struct usbd_device *identity;
- int address;
- int config;
- enum usbd_dev_state {
- USBD_STATE_DISABLED = 0,
- USBD_STATE_DEFAULT,
- USBD_STATE_SETTING_ADDRESS,
- USBD_STATE_ADDRESS,
- USBD_STATE_CONFIGURED
- } state;
- enum usb_ctrl_req_dir ctrl_dir;
- struct usbd_ep_state_t ep_state[USB_MAX_EP];
- };
-
- extern struct usbd_t usb;
-
-
-
- // ----- Functions -----
-
- void usb_restart(void);
- void usb_enable(void);
- const struct usbd_config *usb_get_config_data(int config);
-
- #endif
-
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