/*
* Copyright (c) 2006 Martin Decky
* Copyright (c) 2010 Jiri Svoboda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup uspace_drv_cuda_adb
* @{
*/
/** @file
*/
#ifndef CUDA_ADB_H_
#define CUDA_ADB_H_
#include <adt/list.h>
#include <async.h>
#include <ddf/driver.h>
#include <fibril_synch.h>
#include <loc.h>
#include <stdint.h>
#include "cuda_hw.h"
enum {
CUDA_RCV_BUF_SIZE = 5
};
enum cuda_xfer_state {
cx_listen,
cx_receive,
cx_rcv_end,
cx_send_start,
cx_send
};
typedef struct {
uintptr_t base;
int irq;
} cuda_res_t;
/** ADB bus device */
typedef struct {
ddf_fun_t *fun;
async_sess_t *client_sess;
link_t lcuda;
struct cuda *cuda;
} adb_dev_t;
/** CUDA ADB bus */
typedef struct cude {
struct cuda_regs *regs;
uintptr_t phys_base;
ddf_dev_t *dev;
uint8_t rcv_buf[CUDA_RCV_BUF_SIZE];
uint8_t snd_buf[CUDA_RCV_BUF_SIZE];
size_t bidx;
size_t snd_bytes;
enum cuda_xfer_state xstate;
fibril_mutex_t dev_lock;
list_t devs;
adb_dev_t *addr_dev[ADB_MAX_ADDR];
} cuda_t;
extern errno_t cuda_add(cuda_t *, cuda_res_t *);
extern errno_t cuda_remove(cuda_t *);
extern errno_t cuda_gone(cuda_t *);
#endif
/** @}
*/