diff options
Diffstat (limited to 'sys/arm/ti/ti_gpio.h')
| -rw-r--r-- | sys/arm/ti/ti_gpio.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/sys/arm/ti/ti_gpio.h b/sys/arm/ti/ti_gpio.h new file mode 100644 index 000000000000..3ffc8996c8d3 --- /dev/null +++ b/sys/arm/ti/ti_gpio.h @@ -0,0 +1,70 @@ +/*- + * Copyright (c) 2011 + * Ben Gray <ben.r.gray@gmail.com>. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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. + * + * $FreeBSD$ + */ + +#ifndef TI_GPIO_H +#define TI_GPIO_H + +/* The maximum number of banks for any SoC */ +#define MAX_GPIO_BANKS 6 + +/* + * Maximum GPIOS possible, max of *_MAX_GPIO_BANKS * *_INTR_PER_BANK. + * These are defined in ti_gpio.c + */ +#define MAX_GPIO_INTRS 8 + +struct ti_gpio_irqsrc { + struct intr_irqsrc tgi_isrc; + u_int tgi_irq; + uint32_t tgi_mask; + uint32_t tgi_mode; +}; + +/** + * Structure that stores the driver context. + * + * This structure is allocated during driver attach. + */ +struct ti_gpio_softc { + device_t sc_dev; + device_t sc_busdev; + int sc_bank; + int sc_maxpin; + struct mtx sc_mtx; + + int sc_mem_rid; + struct resource *sc_mem_res; + int sc_irq_rid; + struct resource *sc_irq_res; + struct ti_gpio_irqsrc *sc_isrcs; + /* The handle for the register IRQ handlers. */ + void *sc_irq_hdl; +}; + +#endif /* TI_GPIO_H */ |