include/asm-mips/mach-au1x00/au1000_usbdev.h

   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);