diff options
Diffstat (limited to 'drivers/usb/gadget/s3c2410_udc.h')
| -rw-r--r-- | drivers/usb/gadget/s3c2410_udc.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/drivers/usb/gadget/s3c2410_udc.h b/drivers/usb/gadget/s3c2410_udc.h new file mode 100644 index 000000000000..9e0bece4f241 --- /dev/null +++ b/drivers/usb/gadget/s3c2410_udc.h @@ -0,0 +1,110 @@ +/* + * linux/drivers/usb/gadget/s3c2410_udc.h + * Samsung on-chip full speed USB device controllers + * + * Copyright (C) 2004-2007 Herbert Pötzl - Arnaud Patard + * Additional cleanups by Ben Dooks <ben-linux@fluff.org> + * + * 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 2 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifndef _S3C2410_UDC_H +#define _S3C2410_UDC_H + +struct s3c2410_ep { + struct list_head queue; + unsigned long last_io; /* jiffies timestamp */ + struct usb_gadget *gadget; + struct s3c2410_udc *dev; + const struct usb_endpoint_descriptor *desc; + struct usb_ep ep; + u8 num; + + unsigned short fifo_size; + u8 bEndpointAddress; + u8 bmAttributes; + + unsigned halted : 1; + unsigned already_seen : 1; + unsigned setup_stage : 1; +}; + + +/* Warning : ep0 has a fifo of 16 bytes */ +/* Don't try to set 32 or 64 */ +/* also testusb 14 fails wit 16 but is */ +/* fine with 8 */ +#define EP0_FIFO_SIZE 8 +#define EP_FIFO_SIZE 64 +#define DEFAULT_POWER_STATE 0x00 + +#define S3C2440_EP_FIFO_SIZE 128 + +static const char ep0name [] = "ep0"; + +static const char *const ep_name[] = { + ep0name, /* everyone has ep0 */ + /* s3c2410 four bidirectional bulk endpoints */ + "ep1-bulk", "ep2-bulk", "ep3-bulk", "ep4-bulk", +}; + +#define S3C2410_ENDPOINTS ARRAY_SIZE(ep_name) + +struct s3c2410_request { + struct list_head queue; /* ep's requests */ + struct usb_request req; +}; + +enum ep0_state { + EP0_IDLE, + EP0_IN_DATA_PHASE, + EP0_OUT_DATA_PHASE, + EP0_END_XFER, + EP0_STALL, +}; + +static const char *ep0states[]= { + "EP0_IDLE", + "EP0_IN_DATA_PHASE", + "EP0_OUT_DATA_PHASE", + "EP0_END_XFER", + "EP0_STALL", +}; + +struct s3c2410_udc { + spinlock_t lock; + + struct s3c2410_ep ep[S3C2410_ENDPOINTS]; + int address; + struct usb_gadget gadget; + struct usb_gadget_driver *driver; + struct s3c2410_request fifo_req; + u8 fifo_buf[EP_FIFO_SIZE]; + u16 devstatus; + + u32 port_status; + int ep0state; + + unsigned got_irq : 1; + + unsigned req_std : 1; + unsigned req_config : 1; + unsigned req_pending : 1; + u8 vbus; + struct dentry *regs_info; +}; + +#endif |