1 /* 2 * BRIEF MODULE DESCRIPTION 3 * Au1000 USB Device-Side Driver 4 * 5 * Copyright 2001 MontaVista Software Inc. 6 * Author: MontaVista Software, Inc. 7 * stevel@mvista.com or source@mvista.com 8 * 9 * This program is free software; you can redistribute it and/or modify it 10 * under the terms of the GNU General Public License as published by the 11 * Free Software Foundation; either version 2 of the License, or (at your 12 * option) any later version. 13 * 14 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 15 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 16 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 17 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 20 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 21 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 * You should have received a copy of the GNU General Public License along 26 * with this program; if not, write to the Free Software Foundation, Inc., 27 * 675 Mass Ave, Cambridge, MA 02139, USA. 28 */ 29 30 #define USBDEV_REV 0x0110 // BCD 31 #define USBDEV_EP0_MAX_PACKET_SIZE 64 32 33 typedef enum { 34 ATTACHED = 0, 35 POWERED, 36 DEFAULT, 37 ADDRESS, 38 CONFIGURED 39 } usbdev_state_t; 40 41 typedef enum { 42 CB_NEW_STATE = 0, 43 CB_PKT_COMPLETE 44 } usbdev_cb_type_t; 45 46 47 typedef struct usbdev_pkt { 48 int ep_addr; // ep addr this packet routed to 49 int size; // size of payload in bytes 50 unsigned status; // packet status 51 struct usbdev_pkt* next; // function layer can't touch this 52 u8 payload[0]; // the payload 53 } usbdev_pkt_t; 54 55 #define PKT_STATUS_ACK (1<<0) 56 #define PKT_STATUS_NAK (1<<1) 57 #define PKT_STATUS_SU (1<<2) 58 59 extern int usbdev_init(struct usb_device_descriptor* dev_desc, 60 struct usb_config_descriptor* config_desc, 61 struct usb_interface_descriptor* if_desc, 62 struct usb_endpoint_descriptor* ep_desc, 63 struct usb_string_descriptor* str_desc[], 64 void (*cb)(usbdev_cb_type_t, unsigned long, void *), 65 void* cb_data); 66 67 extern void usbdev_exit(void); 68 69 extern int usbdev_alloc_packet (int ep_addr, int data_size, 70 usbdev_pkt_t** pkt); 71 extern int usbdev_send_packet (int ep_addr, usbdev_pkt_t* pkt); 72 extern int usbdev_receive_packet(int ep_addr, usbdev_pkt_t** pkt); 73 extern int usbdev_get_byte_count(int ep_addr); 74