include/hw/gpio/imx_gpio.h

   1 /*
   2  * i.MX processors GPIO registers definition.
   3  *
   4  * Copyright (C) 2015 Jean-Christophe Dubois <jcd@tribudubois.net>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 or
   9  * (at your option) version 3 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef IMX_GPIO_H
  21 #define IMX_GPIO_H
  22
  23 #include "hw/sysbus.h"
  24
  25 #define TYPE_IMX_GPIO "imx.gpio"
  26 #define IMX_GPIO(obj) OBJECT_CHECK(IMXGPIOState, (obj), TYPE_IMX_GPIO)
  27
  28 #define IMX_GPIO_MEM_SIZE 0x20
  29
  30 /* i.MX GPIO memory map */
  31 #define DR_ADDR             0x00 /* DATA REGISTER */
  32 #define GDIR_ADDR           0x04 /* DIRECTION REGISTER */
  33 #define PSR_ADDR            0x08 /* PAD STATUS REGISTER */
  34 #define ICR1_ADDR           0x0c /* INTERRUPT CONFIGURATION REGISTER 1 */
  35 #define ICR2_ADDR           0x10 /* INTERRUPT CONFIGURATION REGISTER 2 */
  36 #define IMR_ADDR            0x14 /* INTERRUPT MASK REGISTER */
  37 #define ISR_ADDR            0x18 /* INTERRUPT STATUS REGISTER */
  38 #define EDGE_SEL_ADDR       0x1c /* EDGE SEL REGISTER */
  39
  40 #define IMX_GPIO_PIN_COUNT 32
  41
  42 typedef struct IMXGPIOState {
  43     /*< private >*/
  44     SysBusDevice parent_obj;
  45
  46     /*< public >*/
  47     MemoryRegion iomem;
  48
  49     uint32_t dr;
  50     uint32_t gdir;
  51     uint32_t psr;
  52     uint64_t icr;
  53     uint32_t imr;
  54     uint32_t isr;
  55     bool has_edge_sel;
  56     uint32_t edge_sel;
  57     bool has_upper_pin_irq;
  58
  59     qemu_irq irq[2];
  60     qemu_irq output[IMX_GPIO_PIN_COUNT];
  61 } IMXGPIOState;
  62
  63 #endif /* IMX_GPIO_H */