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/*
* drivers/usb/gadget/s3c_udc.h
* Samsung S3C on-chip full/high speed USB device controllers
* Copyright (C) 2005 for Samsung Electronics
*
* 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 __S3C_USB_GADGET
#define __S3C_USB_GADGET
#include <asm/errno.h>
#include <linux/usb/ch9.h>
#include <usbdescriptors.h>
#include <linux/usb/gadget.h>
#include <linux/list.h>
#include <usb/lin_gadget_compat.h>
#define PHY0_SLEEP (1 << 5)
/*-------------------------------------------------------------------------*/
/* DMA bounce buffer size, 16K is enough even for mass storage */
#define DMA_BUFFER_SIZE (4096*4)
#define EP0_FIFO_SIZE 64
#define EP_FIFO_SIZE 512
#define EP_FIFO_SIZE2 1024
/* ep0-control, ep1in-bulk, ep2out-bulk, ep3in-int */
#define S3C_MAX_ENDPOINTS 4
#define S3C_MAX_HW_ENDPOINTS 16
#define WAIT_FOR_SETUP 0
#define DATA_STATE_XMIT 1
#define DATA_STATE_NEED_ZLP 2
#define WAIT_FOR_OUT_STATUS 3
#define DATA_STATE_RECV 4
#define WAIT_FOR_COMPLETE 5
#define WAIT_FOR_OUT_COMPLETE 6
#define WAIT_FOR_IN_COMPLETE 7
#define WAIT_FOR_NULL_COMPLETE 8
#define TEST_J_SEL 0x1
#define TEST_K_SEL 0x2
#define TEST_SE0_NAK_SEL 0x3
#define TEST_PACKET_SEL 0x4
#define TEST_FORCE_ENABLE_SEL 0x5
/* ************************************************************************* */
/* IO
*/
enum ep_type {
ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt
};
struct s3c_ep {
struct usb_ep ep;
struct s3c_udc *dev;
const struct usb_endpoint_descriptor *desc;
struct list_head queue;
unsigned long pio_irqs;
int len;
void *dma_buf;
u8 stopped;
u8 bEndpointAddress;
u8 bmAttributes;
enum ep_type ep_type;
int fifo_num;
};
struct s3c_request {
struct usb_request req;
struct list_head queue;
};
struct s3c_udc {
struct usb_gadget gadget;
struct usb_gadget_driver *driver;
struct s3c_plat_otg_data *pdata;
void *dma_buf[S3C_MAX_ENDPOINTS+1];
dma_addr_t dma_addr[S3C_MAX_ENDPOINTS+1];
int ep0state;
struct s3c_ep ep[S3C_MAX_ENDPOINTS];
unsigned char usb_address;
unsigned req_pending:1, req_std:1;
};
extern struct s3c_udc *the_controller;
#define ep_is_in(EP) (((EP)->bEndpointAddress&USB_DIR_IN) == USB_DIR_IN)
#define ep_index(EP) ((EP)->bEndpointAddress&0xF)
#define ep_maxpacket(EP) ((EP)->ep.maxpacket)
/*-------------------------------------------------------------------------*/
/* #define DEBUG_UDC */
#ifdef DEBUG_UDC
#define DBG(stuff...) printf("udc: " stuff)
#else
#define DBG(stuff...) do {} while (0)
#endif
#ifdef DEBUG_S3C_UDC_SETUP
#define DEBUG_SETUP(fmt, args...) printk(fmt, ##args)
#else
#define DEBUG_SETUP(fmt, args...) do {} while (0)
#endif
#ifdef DEBUG_S3C_UDC_EP0
#define DEBUG_EP0(fmt, args...) printk(fmt, ##args)
#else
#define DEBUG_EP0(fmt, args...) do {} while (0)
#endif
#ifdef DEBUG_S3C_UDC_ISR
#define DEBUG_ISR 1
#else
#define DEBUG_ISR 0
#endif
#ifdef DEBUG_S3C_UDC_OUT_EP
#define DEBUG_OUT_EP(fmt, args...) printk(fmt, ##args)
#else
#define DEBUG_OUT_EP(fmt, args...) do {} while (0)
#endif
#ifdef DEBUG_S3C_UDC_IN_EP
#define DEBUG_IN_EP 1
#else
#define DEBUG_IN_EP 0
#endif
#if defined(DEBUG_S3C_UDC_SETUP) || defined(DEBUG_S3C_UDC_EP0) || \
defined(DEBUG_S3C_UDC_ISR) || defined(DEBUG_S3C_UDC_OUT_EP) || \
defined(DEBUG_S3C_UDC_IN_EP) || defined(DEBUG_S3C_UDC)
#define DEBUG
#endif
#define ERR(stuff...) printf("ERR udc: " stuff)
#define WARN(stuff...) printf("WARNING udc: " stuff)
#define INFO(stuff...) printf("INFO udc: " stuff)
extern void otg_phy_init(struct s3c_udc *dev);
extern void otg_phy_off(struct s3c_udc *dev);
extern void s3c_udc_ep_set_stall(struct s3c_ep *ep);
extern int s3c_udc_probe(struct s3c_plat_otg_data *pdata);
struct s3c_plat_otg_data {
int (*phy_control)(int on);
unsigned int regs_phy;
unsigned int regs_otg;
unsigned int usb_phy_ctrl;
unsigned int usb_flags;
};
#endif
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