FreeBSD/Linux Kernel Cross Reference
sys/arm/ti/ti_gpio.h
1 /*-
2 * Copyright (c) 2011
3 * Ben Gray <ben.r.gray@gmail.com>.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD$
28 */
29
30 #ifndef TI_GPIO_H
31 #define TI_GPIO_H
32
33 /* The maximum number of banks for any SoC */
34 #define MAX_GPIO_BANKS 6
35
36 /*
37 * Maximum GPIOS possible, max of *_MAX_GPIO_BANKS * *_INTR_PER_BANK.
38 * These are defined in ti_gpio.c
39 */
40 #define MAX_GPIO_INTRS 8
41
42 struct ti_gpio_irqsrc {
43 struct intr_irqsrc tgi_isrc;
44 u_int tgi_irq;
45 uint32_t tgi_mask;
46 uint32_t tgi_mode;
47 };
48
49 /**
50 * Structure that stores the driver context.
51 *
52 * This structure is allocated during driver attach.
53 */
54 struct ti_gpio_softc {
55 device_t sc_dev;
56 device_t sc_busdev;
57 int sc_bank;
58 int sc_maxpin;
59 struct mtx sc_mtx;
60
61 int sc_mem_rid;
62 struct resource *sc_mem_res;
63 int sc_irq_rid;
64 struct resource *sc_irq_res;
65 struct ti_gpio_irqsrc *sc_isrcs;
66 /* The handle for the register IRQ handlers. */
67 void *sc_irq_hdl;
68 };
69
70 #endif /* TI_GPIO_H */
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