100 lines
2.2 KiB
C
100 lines
2.2 KiB
C
|
// SPDX-License-Identifier: GPL-2.0+
|
||
|
|
/*
|
||
|
|
* 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>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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;
|
||
|
|
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;
|
||
|
|
|
||
|
|
struct gpio_desc *vbus_gpiod;
|
||
|
|
struct gpio_desc *pullup_gpiod;
|
||
|
|
|
||
|
|
unsigned got_irq : 1;
|
||
|
|
|
||
|
|
unsigned req_std : 1;
|
||
|
|
unsigned req_config : 1;
|
||
|
|
unsigned req_pending : 1;
|
||
|
|
u8 vbus;
|
||
|
|
int irq;
|
||
|
|
};
|
||
|
|
#define to_s3c2410(g) (container_of((g), struct s3c2410_udc, gadget))
|
||
|
|
|
||
|
|
#endif
|