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Initial USB device stack for STM32.

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Patch provided by Gareth McMullin <gareth@blacksphere.co.nz>,
thanks a lot!
This commit is contained in:
Uwe Hermann
2010-11-02 02:02:21 +01:00
parent 1621fde1f4
commit 6e090ccee1
30 changed files with 2913 additions and 10 deletions
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84
lib/usb/usb_private.h Normal file
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/*
* This file is part of the libopenstm32 project.
*
* Copyright (C) 2010 Gareth McMullin <gareth@blacksphere.co.nz>
*
* 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_PRIVATE_H
#define __USB_PRIVATE_H
#define MIN(a, b) ((a)<(b) ? (a) : (b))
/** Internal collection of device information. */
extern struct _usbd_device {
const struct usb_device_descriptor *desc;
const struct usb_config_descriptor *config;
const char **strings;
uint8_t *ctrl_buf; /**< Internal buffer used for control transfers */
uint16_t ctrl_buf_len;
uint8_t current_address;
uint8_t current_config;
uint16_t pm_top; /**< Top of allocated endpoint buffer memory */
/* User callback functions for various USB events */
void (*user_callback_reset)(void);
void (*user_callback_suspend)(void);
void (*user_callback_resume)(void);
int (*user_callback_control_command)(struct usb_setup_data *req,
void (**complete)(struct usb_setup_data *req));
int (*user_callback_control_read)(struct usb_setup_data *req,
uint8_t **buf, uint16_t *len,
void (**complete)(struct usb_setup_data *req));
int (*user_callback_control_write)(struct usb_setup_data *req,
uint8_t *buf, uint16_t len,
void (**complete)(struct usb_setup_data *req));
void (*user_callback_ctr[8][3])(uint8_t ea);
/* User callback function for some standard USB function hooks */
void (*user_callback_set_config)(uint16_t wValue);
} _usbd_device;
enum _usbd_transaction {
USB_TRANSACTION_IN,
USB_TRANSACTION_OUT,
USB_TRANSACTION_SETUP,
};
void _usbd_control_in(uint8_t ea);
void _usbd_control_out(uint8_t ea);
void _usbd_control_setup(uint8_t ea);
int _usbd_standard_request_command(struct usb_setup_data *req);
int _usbd_standard_request_read(struct usb_setup_data *req,
uint8_t **buf, uint16_t *len);
int _usbd_standard_request_write(struct usb_setup_data *req,
uint8_t *buf, uint16_t len);
void _usbd_reset(void);
/* Functions provided by the hardware abstraction */
void _usbd_hw_init(void);
void _usbd_hw_set_address(uint8_t addr);
void _usbd_hw_endpoints_reset(void);
#endif