| 1 | /*
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| 2 | * Copyright (c) 2010 Jiri Svoboda
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| 3 | * Copyright (c) 2013 Jakub Klama
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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 genarch
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| 31 | * @{
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| 32 | */
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| 33 | /**
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| 34 | * @file
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| 35 | * @brief Gaisler GRLIB UART IP-Core driver.
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| 36 | */
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| 37 |
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| 38 | #ifndef KERN_GRLIB_UART_H_
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| 39 | #define KERN_GRLIB_UART_H_
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| 40 |
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| 41 | #include <ddi/ddi.h>
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| 42 | #include <ddi/irq.h>
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| 43 | #include <console/chardev.h>
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| 44 | #include <typedefs.h>
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| 45 |
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| 46 | typedef struct {
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| 47 | unsigned int rcnt: 6;
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| 48 | unsigned int tcnt: 6;
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| 49 | unsigned int : 9;
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| 50 | unsigned int rf: 1;
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| 51 | unsigned int tf: 1;
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| 52 | unsigned int rh: 1;
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| 53 | unsigned int th: 1;
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| 54 | unsigned int fe: 1;
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| 55 | unsigned int pe: 1;
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| 56 | unsigned int ov: 1;
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| 57 | unsigned int br: 1;
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| 58 | unsigned int te: 1;
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| 59 | unsigned int ts: 1;
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| 60 | unsigned int dr: 1;
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| 61 | } grlib_uart_status_t;
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| 62 |
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| 63 | typedef struct {
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| 64 | unsigned int fa: 1;
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| 65 | unsigned int : 16;
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| 66 | unsigned int si: 1;
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| 67 | unsigned int di: 1;
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| 68 | unsigned int bi: 1;
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| 69 | unsigned int db: 1;
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| 70 | unsigned int rf: 1;
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| 71 | unsigned int tf: 1;
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| 72 | unsigned int ec: 1;
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| 73 | unsigned int lb: 1;
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| 74 | unsigned int fl: 1;
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| 75 | unsigned int pe: 1;
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| 76 | unsigned int ps: 1;
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| 77 | unsigned int ti: 1;
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| 78 | unsigned int ri: 1;
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| 79 | unsigned int te: 1;
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| 80 | unsigned int re: 1;
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| 81 | } grlib_uart_control_t;
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| 82 |
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| 83 | /** GRLIB UART registers */
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| 84 | typedef struct {
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| 85 | uint32_t data;
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| 86 | uint32_t status;
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| 87 | uint32_t control;
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| 88 | uint32_t scaler;
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| 89 | uint32_t debug;
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| 90 | } grlib_uart_io_t;
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| 91 |
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| 92 | typedef struct {
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| 93 | grlib_uart_io_t *io;
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| 94 | indev_t *indev;
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| 95 | irq_t irq;
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| 96 | parea_t parea;
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| 97 | } grlib_uart_t;
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| 98 |
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| 99 | extern outdev_t *grlib_uart_init(uintptr_t, inr_t);
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| 100 | extern void grlib_uart_input_wire(grlib_uart_t *,
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| 101 | indev_t *);
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| 102 |
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| 103 | #endif
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| 104 |
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| 105 | /** @}
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| 106 | */
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