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/*
* arch/ubicom32/mach-common/usb_tio.h
* Definitions for usb_tio.c
*
* (C) Copyright 2009, Ubicom, Inc.
*
* This file is part of the Ubicom32 Linux Kernel Port.
*
* The Ubicom32 Linux Kernel Port 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.
*
* The Ubicom32 Linux Kernel Port 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 the Ubicom32 Linux Kernel Port. If not,
* see <http://www.gnu.org/licenses/>.
*
* Ubicom32 implementation derived from (with many thanks):
* arch/m68knommu
* arch/blackfin
* arch/parisc
*/
#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <asm/devtree.h>
#include <asm/ip5000.h>
#ifndef _USB_TIO_H
#define _USB_TIO_H
#undef USB_TIO_DEBUG
#define USB_TIO_REQUEST_MAGIC1 0x2307
#define USB_TIO_REQUEST_MAGIC2 0x0789
#if defined(USB_TIO_DEBUG)
#define USB_TIO_REQUEST_VERIFY_MAGIC(req) usb_tio_request_verify_magic(req)
#define USB_TIO_REQUEST_SET_MAGIC(req) usb_tio_request_set_magic(req)
#define USB_TIO_REQUEST_CLEAR_MAGIC(req) usb_tio_request_clear_magic(req)
#else
#define USB_TIO_REQUEST_VERIFY_MAGIC(req)
#define USB_TIO_REQUEST_SET_MAGIC(req) usb_tio_request_set_magic(req)
#define USB_TIO_REQUEST_CLEAR_MAGIC(req)
#endif
enum USB_TIO_status {
USB_TIO_OK,
USB_TIO_ERROR,
USB_TIO_ERROR_COMMIT,
};
enum USB_TIO_cmds {
USB_TIO_READ16_SYNC,
USB_TIO_READ8_SYNC,
USB_TIO_READ_FIFO_SYNC,
USB_TIO_WRITE16_ASYNC,
USB_TIO_WRITE8_ASYNC,
USB_TIO_WRITE_FIFO_ASYNC,
USB_TIO_WRITE16_SYNC,
USB_TIO_WRITE8_SYNC,
USB_TIO_WRITE_FIFO_SYNC,
};
enum USB_TIO_state {
USB_TIO_NORMAL,
USB_TIO_DMA_SETUP,
};
struct usb_tio_request {
volatile u32_t address;
union {
volatile u32_t data;
volatile u32_t buffer;
};
volatile u16_t cmd;
const volatile u16_t status;
volatile u32_t transfer_length;
volatile u32_t thread_mask;
volatile u16_t magic;
};
struct usbtio_node {
struct devtree_node dn;
volatile struct usb_tio_request * volatile pdesc;
struct usb_tio_request request;
volatile u32_t usb_vp_config;
volatile u32_t usb_vp_control;
const volatile u32_t usb_vp_status;
volatile u16_t usb_vp_hw_int_tx;
volatile u16_t usb_vp_hw_int_rx;
volatile u8_t usb_vp_hw_int_usb;
volatile u8_t usb_vp_hw_int_mask_usb;
volatile u16_t usb_vp_hw_int_mask_tx;
volatile u16_t usb_vp_hw_int_mask_rx;
};
extern struct usbtio_node *usb_node;
extern void ubi32_usb_init(void);
#endif
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