| 1 | /*
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| 2 | * Copyright (c) 2011 Jiri Michalec
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @file
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| 30 | *
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| 31 | * General functions and structures used in rtl8139 driver
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| 32 | */
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| 33 |
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| 34 | #ifndef RTL8139_GENERAL_H_
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| 35 | #define RTL8139_GENERAL_H_
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| 36 |
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| 37 | #include <unistd.h>
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| 38 |
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| 39 | extern void* rtl8139_memcpy_wrapped(void *dest, const void *src_buf,
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| 40 | size_t src_offset, size_t src_size, size_t data_size);
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| 41 |
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| 42 |
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| 43 | /** Structure for HW timer control */
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| 44 | typedef struct rtl8139_timer_act {
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| 45 | /** Register value set in the last timer period */
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| 46 | uint32_t last_val;
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| 47 | /** Register value set in the common timer period */
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| 48 | uint32_t full_val;
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| 49 |
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| 50 | /** Amount of full register periods in timer period */
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| 51 | size_t full_skips;
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| 52 | /** Remaining full register periods to the next period end */
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| 53 | size_t full_skips_remains;
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| 54 | /** Mark if there is a last run */
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| 55 | int last_run;
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| 56 | } rtl8139_timer_act_t;
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| 57 |
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| 58 | /** Count of microseconds in second */
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| 59 | #define RTL8139_USEC_IN_SEC 1000000
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| 60 |
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| 61 | extern int rtl8139_timer_act_init(rtl8139_timer_act_t *ta, uint32_t timer_freq,
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| 62 | const struct timeval *time);
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| 63 | extern int rtl8139_timer_act_step(rtl8139_timer_act_t *ta, uint32_t *new_reg);
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| 64 |
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| 65 |
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| 66 | #endif
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