| 1 | /*
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| 2 | * Copyright (c) 2006 Martin Decky
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| 3 | * Copyright (c) 2010 Jiri Svoboda
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * - Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * - Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * - The name of the author may not be used to endorse or promote products
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| 16 | * derived from this software without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 28 | */
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| 29 |
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| 30 | /** @addtogroup uspace_drv_cuda_adb
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| 31 | * @{
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| 32 | */
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| 33 | /** @file
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| 34 | */
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| 35 |
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| 36 | #ifndef CUDA_ADB_H_
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| 37 | #define CUDA_ADB_H_
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| 38 |
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| 39 | #include <adt/list.h>
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| 40 | #include <async.h>
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| 41 | #include <ddf/driver.h>
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| 42 | #include <fibril_synch.h>
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| 43 | #include <loc.h>
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| 44 | #include <stdint.h>
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| 45 | #include "cuda_hw.h"
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| 46 |
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| 47 | enum {
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| 48 | CUDA_RCV_BUF_SIZE = 5
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| 49 | };
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| 50 |
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| 51 | enum cuda_xfer_state {
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| 52 | cx_listen,
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| 53 | cx_receive,
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| 54 | cx_rcv_end,
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| 55 | cx_send_start,
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| 56 | cx_send
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| 57 | };
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| 58 |
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| 59 | typedef struct {
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| 60 | uintptr_t base;
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| 61 | int irq;
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| 62 | } cuda_res_t;
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| 63 |
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| 64 | /** ADB bus device */
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| 65 | typedef struct {
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| 66 | ddf_fun_t *fun;
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| 67 | async_sess_t *client_sess;
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| 68 | link_t lcuda;
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| 69 | struct cuda *cuda;
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| 70 | } adb_dev_t;
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| 71 |
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| 72 | /** CUDA ADB bus */
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| 73 | typedef struct cude {
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| 74 | struct cuda_regs *regs;
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| 75 | uintptr_t phys_base;
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| 76 | ddf_dev_t *dev;
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| 77 |
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| 78 | uint8_t rcv_buf[CUDA_RCV_BUF_SIZE];
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| 79 | uint8_t snd_buf[CUDA_RCV_BUF_SIZE];
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| 80 | size_t bidx;
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| 81 | size_t snd_bytes;
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| 82 | enum cuda_xfer_state xstate;
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| 83 | fibril_mutex_t dev_lock;
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| 84 |
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| 85 | list_t devs;
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| 86 | adb_dev_t *addr_dev[ADB_MAX_ADDR];
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| 87 | } cuda_t;
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| 88 |
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| 89 | extern errno_t cuda_add(cuda_t *, cuda_res_t *);
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| 90 | extern errno_t cuda_remove(cuda_t *);
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| 91 | extern errno_t cuda_gone(cuda_t *);
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| 92 |
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| 93 | #endif
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| 94 |
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| 95 | /** @}
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| 96 | */
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