gpio.h

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/* Copyright 2014, Peter A. Bigot
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 *
 * * 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.
 *
 * * Neither the name of the software nor the names of its contributors may be
 *   used to endorse or promote products derived from this software without
 *   specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE COPYRIGHT HOLDER 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.
 */

#ifndef BSPACM_DEVICE_TM4C_PERIPH_GPIO_H
#define BSPACM_DEVICE_TM4C_PERIPH_GPIO_H

/* Standard port tag/shift map:
 *
 * PA 0    PB 1    PC 2    PD 3
 * PE 4    PF 5    PG 6    PH 7
 * *PJ 8   PK 9    PL 10   PM 11
 * PN 12   *PP 13  PQ 14   PR 15
 * PS 16   PT 17
 */

#include <bspacm/core.h>

typedef struct sBSPACMdeviceTM4Cpinmux {
  GPIOCommon_Type * port;

  uint8_t pin;

  uint8_t pctl;

  uint8_t irqn;
} sBSPACMdeviceTM4Cpinmux;

void vBSPACMdeviceTM4CpinmuxConfigure (const sBSPACMdeviceTM4Cpinmux * cfgp,
                                       int enablep);

static BSPACM_CORE_INLINE
int
iBSPACMdeviceTM4CgpioPortTagFromShift (unsigned int shift)
{
  int tag = 'A' + shift;
  if (('O' - 2) < tag) {
    tag += 2;
  } else if (('I' - 1) < tag) {
    tag += 1;
  }
  return tag;
}

static BSPACM_CORE_INLINE
int
iBSPACMdeviceTM4CgpioPortShift (void * gpio)
{
#if defined(GPIOA_BASE)
  if (gpio == (void*)GPIOA_BASE) return 0;
#endif
#if defined(GPIOA_AHB_BASE)
  if (gpio == (void*)GPIOA_AHB_BASE) return 0;
#endif
#if defined(GPIOB_BASE)
  if (gpio == (void*)GPIOB_BASE) return 1;
#endif
#if defined(GPIOB_AHB_BASE)
  if (gpio == (void*)GPIOB_AHB_BASE) return 1;
#endif
#if defined(GPIOC_BASE)
  if (gpio == (void*)GPIOC_BASE) return 2;
#endif
#if defined(GPIOC_AHB_BASE)
  if (gpio == (void*)GPIOC_AHB_BASE) return 2;
#endif
#if defined(GPIOD_BASE)
  if (gpio == (void*)GPIOD_BASE) return 3;
#endif
#if defined(GPIOD_AHB_BASE)
  if (gpio == (void*)GPIOD_AHB_BASE) return 3;
#endif
#if defined(GPIOE_BASE)
  if (gpio == (void*)GPIOE_BASE) return 4;
#endif
#if defined(GPIOE_AHB_BASE)
  if (gpio == (void*)GPIOE_AHB_BASE) return 4;
#endif
#if defined(GPIOF_BASE)
  if (gpio == (void*)GPIOF_BASE) return 5;
#endif
#if defined(GPIOF_AHB_BASE)
  if (gpio == (void*)GPIOF_AHB_BASE) return 5;
#endif
#if defined(GPIOG_BASE)
  if (gpio == (void*)GPIOG_BASE) return 6;
#endif
#if defined(GPIOG_AHB_BASE)
  if (gpio == (void*)GPIOG_AHB_BASE) return 6;
#endif
#if defined(GPIOH_BASE)
  if (gpio == (void*)GPIOH_BASE) return 7;
#endif
#if defined(GPIOH_AHB_BASE)
  if (gpio == (void*)GPIOH_AHB_BASE) return 7;
#endif
  /* No GPIOI */
#if defined(GPIOJ_BASE)
  if (gpio == (void*)GPIOJ_BASE) return 8;
#endif
#if defined(GPIOJ_AHB_BASE)
  if (gpio == (void*)GPIOJ_AHB_BASE) return 8;
#endif
#if defined(GPIOK_BASE)
  if (gpio == (void*)GPIOK_BASE) return 9;
#endif
#if defined(GPIOK_AHB_BASE)
  if (gpio == (void*)GPIOK_AHB_BASE) return 9;
#endif
#if defined(GPIOL_BASE)
  if (gpio == (void*)GPIOL_BASE) return 10;
#endif
#if defined(GPIOL_AHB_BASE)
  if (gpio == (void*)GPIOL_AHB_BASE) return 10;
#endif
#if defined(GPIOM_BASE)
  if (gpio == (void*)GPIOM_BASE) return 11;
#endif
#if defined(GPIOM_AHB_BASE)
  if (gpio == (void*)GPIOM_AHB_BASE) return 11;
#endif
#if defined(GPION_BASE)
  if (gpio == (void*)GPION_BASE) return 12;
#endif
#if defined(GPION_AHB_BASE)
  if (gpio == (void*)GPION_AHB_BASE) return 12;
#endif
  /* No GPIOO */
#if defined(GPIOP_BASE)
  if (gpio == (void*)GPIOP_BASE) return 13;
#endif
#if defined(GPIOP_AHB_BASE)
  if (gpio == (void*)GPIOP_AHB_BASE) return 13;
#endif
#if defined(GPIOQ_BASE)
  if (gpio == (void*)GPIOQ_BASE) return 14;
#endif
#if defined(GPIOQ_AHB_BASE)
  if (gpio == (void*)GPIOQ_AHB_BASE) return 14;
#endif
#if defined(GPIOR_BASE)
  if (gpio == (void*)GPIOR_BASE) return 15;
#endif
#if defined(GPIOR_AHB_BASE)
  if (gpio == (void*)GPIOR_AHB_BASE) return 15;
#endif
#if defined(GPIOS_BASE)
  if (gpio == (void*)GPIOS_BASE) return 16;
#endif
#if defined(GPIOS_AHB_BASE)
  if (gpio == (void*)GPIOS_AHB_BASE) return 16;
#endif
#if defined(GPIOT_BASE)
  if (gpio == (void*)GPIOT_BASE) return 17;
#endif
#if defined(GPIOT_AHB_BASE)
  if (gpio == (void*)GPIOT_AHB_BASE) return 17;
#endif
  return -1;
}

#endif /* BSPACM_DEVICE_TM4C_PERIPH_GPIO_H */