electronics
/
libopencm3
9
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

[sam3] add support for the PIO peripheral of all devices 

Add register definitions and access functions.
This commit is contained in:
Felix Held 2014-03-01 21:32:37 +01:00 committed by Karl Palsson
parent 8a24685d0c
commit 235734ea42
26 changed files with 936 additions and 129 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
include/libopencm3/sam/3a/gpio.h Normal file
View File

@ -0,0 +1,28 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBOPENCM3_GPIO_H
#define LIBOPENCM3_GPIO_H
#include <libopencm3/sam/memorymap.h>
#include <libopencm3/sam/pio.h>
#include <libopencm3/sam/common/gpio_common_3a3u3x.h>
#endif

27
include/libopencm3/sam/3a/pio.h Normal file
View File

@ -0,0 +1,27 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBOPENCM3_PIO_H
#define LIBOPENCM3_PIO_H
#include <libopencm3/sam/memorymap.h>
#include <libopencm3/sam/common/pio_common_3a3u3x.h>
#endif

28
include/libopencm3/sam/3n/gpio.h Normal file
View File

@ -0,0 +1,28 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBOPENCM3_GPIO_H
#define LIBOPENCM3_GPIO_H
#include <libopencm3/sam/memorymap.h>
#include <libopencm3/sam/pio.h>
#include <libopencm3/sam/common/gpio_common_3n3s.h>
#endif

27
include/libopencm3/sam/3n/pio.h Normal file
View File

@ -0,0 +1,27 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBOPENCM3_PIO_H
#define LIBOPENCM3_PIO_H
#include <libopencm3/sam/memorymap.h>
#include <libopencm3/sam/common/pio_common_3n3s.h>
#endif

28
include/libopencm3/sam/3s/gpio.h Normal file
View File

@ -0,0 +1,28 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBOPENCM3_GPIO_H
#define LIBOPENCM3_GPIO_H
#include <libopencm3/sam/memorymap.h>
#include <libopencm3/sam/pio.h>
#include <libopencm3/sam/common/gpio_common_3n3s.h>
#endif

47
include/libopencm3/sam/3s/pio.h Normal file
View File

@ -0,0 +1,47 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBOPENCM3_PIO_H
#define LIBOPENCM3_PIO_H
#include <libopencm3/sam/memorymap.h>
#include <libopencm3/sam/common/pio_common_3n3s.h>
/* --- PIO registers ----------------------------------------------------- */
/* Parallel Capture Mode Register */
#define PIO_PCMR(port) MMIO32((port) + 0x0150)
/* Parallel Capture Interrupt Enable Register */
#define PIO_PCIER(port) MMIO32((port) + 0x0154)
/* Parallel Capture Interrupt Disable Register */
#define PIO_PCIDR(port) MMIO32((port) + 0x0158)
/* Parallel Capture Interrupt Mask Register */
#define PIO_PCIMR(port) MMIO32((port) + 0x015C)
/* Parallel Capture Interrupt Status Register */
#define PIO_PCISR(port) MMIO32((port) + 0x0160)
/* Parallel Capture Reception Holding Register */
#define PIO_PCRHR(port) MMIO32((port) + 0x0164)
#endif

28
include/libopencm3/sam/3u/gpio.h Normal file
View File

@ -0,0 +1,28 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBOPENCM3_GPIO_H
#define LIBOPENCM3_GPIO_H
#include <libopencm3/sam/memorymap.h>
#include <libopencm3/sam/pio.h>
#include <libopencm3/sam/common/gpio_common_3a3u3x.h>
#endif

27
include/libopencm3/sam/3u/pio.h Normal file
View File

@ -0,0 +1,27 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBOPENCM3_PIO_H
#define LIBOPENCM3_PIO_H
#include <libopencm3/sam/memorymap.h>
#include <libopencm3/sam/common/pio_common_3a3u3x.h>
#endif

28
include/libopencm3/sam/3x/gpio.h Normal file
View File

@ -0,0 +1,28 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBOPENCM3_GPIO_H
#define LIBOPENCM3_GPIO_H
#include <libopencm3/sam/memorymap.h>
#include <libopencm3/sam/pio.h>
#include <libopencm3/sam/common/gpio_common_3a3u3x.h>
#endif

27
include/libopencm3/sam/3x/pio.h Normal file
View File

@ -0,0 +1,27 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBOPENCM3_PIO_H
#define LIBOPENCM3_PIO_H
#include <libopencm3/sam/memorymap.h>
#include <libopencm3/sam/common/pio_common_3a3u3x.h>
#endif

52
include/libopencm3/sam/common/gpio_common_3a3u3x.h Normal file
View File

@ -0,0 +1,52 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2013 Gareth McMullin <gareth@blacksphere.co.nz>
* COpyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/* THIS FILE SHOULD NOT BE INCLUDED DIRECTLY, BUT ONLY VIA GPIO.H
The order of header inclusion is important. gpio.h includes the device
specific memorymap.h header before including this header file.*/
#if defined(LIBOPENCM3_GPIO_H)
#ifndef LIBOPENCM3_GPIO_COMMON_3A3U3X_H
#define LIBOPENCM3_GPIO_COMMON_3A3U3X_H
#include <libopencm3/sam/common/gpio_common_all.h>
/* flags may be or'd together, but only contain one of
* GPOUTPUT, PERIPHA and PERIPHB */
enum gpio_flags {
GPIO_FLAG_GPINPUT = 0,
GPIO_FLAG_GPOUTPUT = 1,
GPIO_FLAG_PERIPHA = 2,
GPIO_FLAG_PERIPHB = 3,
GPIO_FLAG_OPEN_DRAIN = (1 << 3),
GPIO_FLAG_PULL_UP = (1 << 4),
};
void gpio_init(uint32_t gpioport, uint32_t pins, enum gpio_flags flags);
#endif
#else
#warning "gpio_common_3a3u3x.h should not be included explicitly, only via gpio.h"
#endif

54
include/libopencm3/sam/common/gpio_common_3n3s.h Normal file
View File

@ -0,0 +1,54 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2013 Gareth McMullin <gareth@blacksphere.co.nz>
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/* THIS FILE SHOULD NOT BE INCLUDED DIRECTLY, BUT ONLY VIA GPIO.H
The order of header inclusion is important. gpio.h includes the device
specific memorymap.h header before including this header file.*/
#if defined(LIBOPENCM3_GPIO_H)
#ifndef LIBOPENCM3_GPIO_COMMON_3N3S_H
#define LIBOPENCM3_GPIO_COMMON_3N3S_H
#include <libopencm3/sam/common/gpio_common_all.h>
/* flags may be or'd together, but only contain one of
* GPOUTPUT, PERIPHA, PERIPHB, PERIPHC and PERIPHD */
enum gpio_flags {
GPIO_FLAG_GPINPUT = 0,
GPIO_FLAG_GPOUTPUT = 1,
GPIO_FLAG_PERIPHA = 2,
GPIO_FLAG_PERIPHB = 3,
GPIO_FLAG_PERIPHC = 4,
GPIO_FLAG_PERIPHD = 5,
GPIO_FLAG_OPEN_DRAIN = (1 << 3),
GPIO_FLAG_PULL_UP = (1 << 4),
};
void gpio_init(uint32_t gpioport, uint32_t pins, enum gpio_flags flags);
#endif
#else
#warning "gpio_common_3n3s.h should not be included explicitly, only via gpio.h"
#endif

41
include/libopencm3/sam/common/gpio_common_all.h Normal file
View File

@ -0,0 +1,41 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2013 Gareth McMullin <gareth@blacksphere.co.nz>
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/* THIS FILE SHOULD NOT BE INCLUDED DIRECTLY, BUT ONLY VIA GPIO.H
The order of header inclusion is important. gpio.h includes the device
specific memorymap.h header before including this header file.*/
#if defined(LIBOPENCM3_GPIO_H)
#ifndef LIBOPENCM3_GPIO_COMMON_ALL_H
#define LIBOPENCM3_GPIO_COMMON_ALL_H
#include <libopencm3/cm3/common.h>
void gpio_set(uint32_t gpioport, uint32_t gpios);
void gpio_clear(uint32_t gpioport, uint32_t gpios);
void gpio_toggle(uint32_t gpioport, uint32_t gpios);
#endif
#else
#warning "gpio_common_all.h should not be included explicitly, only via gpio.h"
#endif

50
include/libopencm3/sam/common/pio_common_3a3u3x.h Normal file
View File

@ -0,0 +1,50 @@
/*
* This file is part of the libopencm3 project.
*
* COpyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/* THIS FILE SHOULD NOT BE INCLUDED DIRECTLY, BUT ONLY VIA PIO.H
The order of header inclusion is important. pio.h includes the device
specific memorymap.h header before including this header file.*/
#if defined(LIBOPENCM3_PIO_H)
#ifndef LIBOPENCM3_PIO_COMMON_3A3U3X_H
#define LIBOPENCM3_PIO_COMMON_3A3U3X_H
#include <libopencm3/sam/common/pio_common_all.h>
/* --- PIO registers ----------------------------------------------------- */
/* Peripheral AB Select Register */
#define PIO_ABSR(port) MMIO32((port) + 0x0070)
/* System Clock Glitch Input Filter Select Register */
#define PIO_SCIFSR(port) MMIO32((port) + 0x0080)
/* Debouncing Input Filter Select Register */
#define PIO_DIFSR(port) MMIO32((port) + 0x0084)
/* Glitch or Debouncing Input Filter Clock Selection Status Register */
#define PIO_IFDGSR(port) MMIO32((port) + 0x0088)
#endif
#else
#warning "pio_common_3a3u3x.h should not be included explicitly, only via pio.h"
#endif

65
include/libopencm3/sam/common/pio_common_3n3s.h Normal file
View File

@ -0,0 +1,65 @@
/*
* This file is part of the libopencm3 project.
*
* COpyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/* THIS FILE SHOULD NOT BE INCLUDED DIRECTLY, BUT ONLY VIA PIO.H
The order of header inclusion is important. pio.h includes the device
specific memorymap.h header before including this header file.*/
#if defined(LIBOPENCM3_PIO_H)
#ifndef LIBOPENCM3_PIO_COMMON_3N3S_H
#define LIBOPENCM3_PIO_COMMON_3N3S_H
#include <libopencm3/sam/common/pio_common_all.h>
/* --- PIO registers ----------------------------------------------------- */
/* Peripheral Select Register 1 */
#define PIO_ABCDSR1(port) MMIO32((port) + 0x0070)
/* Peripheral Select Register 2 */
#define PIO_ABCDSR2(port) MMIO32((port) + 0x0074)
/* Input Filter Slow Clock Disable Register */
#define PIO_IFSCDR(port) MMIO32((port) + 0x0080)
/* Input Filter Slow Clock Enable Register */
#define PIO_IFSCER(port) MMIO32((port) + 0x0084)
/* Input Filter Slow Clock Status Register */
#define PIO_IFSCSR(port) MMIO32((port) + 0x0088)
/* Pad Pull-down Disable Register */
#define PIO_PPDDR(port) MMIO32((port) + 0x0090)
/* Pad Pull-down Enable Register */
#define PIO_PPDER(port) MMIO32((port) + 0x0094)
/* Pad Pull-down Status Register */
#define PIO_PPDSR(port) MMIO32((port) + 0x0098)
/* Schmitt Trigger Register */
#define PIO_SCHMITT(port) MMIO32((port) + 0x0100)
#endif
#else
#warning "pio_common_3n3s.h should not be included explicitly, only via pio.h"
#endif

168
include/libopencm3/sam/common/pio_common_all.h Normal file
View File

@ -0,0 +1,168 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2012 Gareth McMullin <gareth@blacksphere.co.nz>
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/* THIS FILE SHOULD NOT BE INCLUDED DIRECTLY, BUT ONLY VIA PIO.H
The order of header inclusion is important. pio.h includes the device
specific memorymap.h header before including this header file.*/
#if defined(LIBOPENCM3_PIO_H)
#ifndef LIBOPENCM3_PIO_COMMON_ALL_H
#define LIBOPENCM3_PIO_COMMON_ALL_H
#include <libopencm3/cm3/common.h>
/* --- Convenience macros ------------------------------------------------ */
/* GPIO port base addresses (for convenience) */
#define PIOA PIOA_BASE
#define PIOB PIOB_BASE
#define PIOC PIOC_BASE
#define PIOD PIOD_BASE
#define PIOE PIOE_BASE
#define PIOF PIOF_BASE
#define PIOG PIOG_BASE
#define PIOH PIOH_BASE
/* --- PIO registers ----------------------------------------------------- */
/* PIO Enable Register */
#define PIO_PER(port) MMIO32((port) + 0x0000)
/* PIO Disable Register */
#define PIO_PDR(port) MMIO32((port) + 0x0004)
/* PIO Status Register */
#define PIO_PSR(port) MMIO32((port) + 0x0008)
/* Output Enable Register */
#define PIO_OER(port) MMIO32((port) + 0x0010)
/* Output Disable Register */
#define PIO_ODR(port) MMIO32((port) + 0x0014)
/* Output Status Register */
#define PIO_OSR(port) MMIO32((port) + 0x0018)
/* Glitch Input Filter Enable Register */
#define PIO_IFER(port) MMIO32((port) + 0x0020)
/* Glitch Input Filter Disable Register */
#define PIO_IFDR(port) MMIO32((port) + 0x0024)
/* Glitch Input Filter Status Register */
#define PIO_IFSR(port) MMIO32((port) + 0x0028)
/* Set Output Data Register */
#define PIO_SODR(port) MMIO32((port) + 0x0030)
/* Clear Output Data Register */
#define PIO_CODR(port) MMIO32((port) + 0x0034)
/* Output Data Status Register */
#define PIO_ODSR(port) MMIO32((port) + 0x0038)
/* Pin Data Status Register */
#define PIO_PDSR(port) MMIO32((port) + 0x003C)
/* Interrupt Enable Register */
#define PIO_IER(port) MMIO32((port) + 0x0040)
/* Interrupt Disable Register */
#define PIO_IDR(port) MMIO32((port) + 0x0044)
/* Interrupt Mask Register */
#define PIO_IMR(port) MMIO32((port) + 0x0048)
/* Interrupt Status Register */
#define PIO_ISR(port) MMIO32((port) + 0x004C)
/* Multi-driver Enable Register */
#define PIO_MDER(port) MMIO32((port) + 0x0050)
/* Multi-driver Disable Register */
#define PIO_MDDR(port) MMIO32((port) + 0x0054)
/* Multi-driver Status Register */
#define PIO_MDSR(port) MMIO32((port) + 0x0058)
/* Pull-up Disable Register */
#define PIO_PUDR(port) MMIO32((port) + 0x0060)
/* Pull-up Enable Register */
#define PIO_PUER(port) MMIO32((port) + 0x0064)
/* Pad Pull-up Status Register */
#define PIO_PUSR(port) MMIO32((port) + 0x0068)
/* Slow Clock Divider Debouncing Register */
#define PIO_SCDR(port) MMIO32((port) + 0x008C)
/* Output Write Enable */
#define PIO_OWER(port) MMIO32((port) + 0x00A0)
/* Output Write Disable */
#define PIO_OWDR(port) MMIO32((port) + 0x00A4)
/* Output Write Status Register */
#define PIO_OWSR(port) MMIO32((port) + 0x00A8)
/* Additional Interrupt Modes Enable Register */
#define PIO_AIMER(port) MMIO32((port) + 0x00B0)
/* Additional Interrupt Modes Disables Register */
#define PIO_AIMDR(port) MMIO32((port) + 0x00B4)
/* Additional Interrupt Modes Mask Register */
#define PIO_AIMMR(port) MMIO32((port) + 0x00B8)
/* Edge Select Register */
#define PIO_ESR(port) MMIO32((port) + 0x00C0)
/* Level Select Register */
#define PIO_LSR(port) MMIO32((port) + 0x00C4)
/* Edge/Level Status Register */
#define PIO_ELSR(port) MMIO32((port) + 0x00C8)
/* Falling Edge/Low Level Select Register */
#define PIO_FELLSR(port) MMIO32((port) + 0x00D0)
/* Rising Edge/High Level Select Register */
#define PIO_REHLSR(port) MMIO32((port) + 0x00D4)
/* Fall/Rise - Low/High Status Register */
#define PIO_FRLHSR(port) MMIO32((port) + 0x00D8)
/* Lock Status */
#define PIO_LOCKSR(port) MMIO32((port) + 0x00E0)
/* Write Protect Mode Register */
#define PIO_WPMR(port) MMIO32((port) + 0x00E4)
/* Write Protect Status Register */
#define PIO_WPSR(port) MMIO32((port) + 0x00E8)
#endif
#else
#warning "pio_common_all.h should not be included explicitly, only via pio.h"
#endif

47
include/libopencm3/sam/gpio.h
View File

@ -1,7 +1,9 @@
/* This provides unification of code over SAM subfamilies */
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2013 Gareth McMullin <gareth@blacksphere.co.nz>
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
@ -17,35 +19,16 @@
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SAM3X_GPIO_H
#define SAM3X_GPIO_H
#include <libopencm3/sam/pio.h>
/* flags may be or'd together, but only contain one of
* GPOUTPUT, PERIPHA and PERIPHB */
enum gpio_flags {
GPIO_FLAG_GPINPUT = 0,
GPIO_FLAG_GPOUTPUT = 1,
GPIO_FLAG_PERIPHA = 2,
GPIO_FLAG_PERIPHB = 3,
GPIO_FLAG_OPEN_DRAIN = 4,
GPIO_FLAG_PULL_UP = 8,
};
void gpio_init(uint32_t gpioport, uint32_t pins, enum gpio_flags flags);
static inline void gpio_set(uint32_t gpioport, uint32_t gpios)
{
PIO_SODR(gpioport) = gpios;
}
static inline void gpio_clear(uint32_t gpioport, uint32_t gpios)
{
PIO_CODR(gpioport) = gpios;
}
void gpio_toggle(uint32_t gpioport, uint32_t gpios);
#if defined(SAM3A)
# include <libopencm3/sam/3a/gpio.h>
#elif defined(SAM3N)
# include <libopencm3/sam/3n/gpio.h>
#elif defined(SAM3S)
# include <libopencm3/sam/3s/gpio.h>
#elif defined(SAM3U)
# include <libopencm3/sam/3u/gpio.h>
#elif defined(SAM3X)
# include <libopencm3/sam/3x/gpio.h>
#else
# error "sam family not defined."
#endif

92
include/libopencm3/sam/pio.h
View File

@ -1,7 +1,9 @@
/* This provides unification of code over SAM subfamilies */
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2012 Gareth McMullin <gareth@blacksphere.co.nz>
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
@ -17,80 +19,16 @@
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SAM_PIO_H
#define SAM_PIO_H
#include <libopencm3/cm3/common.h>
#include <libopencm3/sam/memorymap.h>
/* --- Convenience macros ------------------------------------------------ */
/* GPIO port base addresses (for convenience) */
#define PIOA PIOA_BASE
#define PIOB PIOB_BASE
#define PIOC PIOC_BASE
#define PIOD PIOD_BASE
#define PIOE PIOE_BASE
#define PIOF PIOF_BASE
#define PIOG PIOG_BASE
#define PIOH PIOH_BASE
/* --- PIO registers ----------------------------------------------------- */
#define PIO_PER(port) MMIO32((port) + 0x0000)
#define PIO_PDR(port) MMIO32((port) + 0x0004)
#define PIO_PSR(port) MMIO32((port) + 0x0008)
/* 0x000C - Reserved */
#define PIO_OER(port) MMIO32((port) + 0x0010)
#define PIO_ODR(port) MMIO32((port) + 0x0014)
#define PIO_OSR(port) MMIO32((port) + 0x0018)
/* 0x001C - Reserved */
#define PIO_IFER(port) MMIO32((port) + 0x0020)
#define PIO_IFDR(port) MMIO32((port) + 0x0024)
#define PIO_IFSR(port) MMIO32((port) + 0x0028)
/* 0x002C - Reserved */
#define PIO_SODR(port) MMIO32((port) + 0x0030)
#define PIO_CODR(port) MMIO32((port) + 0x0034)
#define PIO_ODSR(port) MMIO32((port) + 0x0038)
#define PIO_PDSR(port) MMIO32((port) + 0x003C)
#define PIO_IER(port) MMIO32((port) + 0x0040)
#define PIO_IDR(port) MMIO32((port) + 0x0044)
#define PIO_IMR(port) MMIO32((port) + 0x0048)
#define PIO_ISR(port) MMIO32((port) + 0x004C)
#define PIO_MDER(port) MMIO32((port) + 0x0050)
#define PIO_MDDR(port) MMIO32((port) + 0x0054)
#define PIO_MDSR(port) MMIO32((port) + 0x0058)
/* 0x005C - Reserved */
#define PIO_PUDR(port) MMIO32((port) + 0x0060)
#define PIO_PUER(port) MMIO32((port) + 0x0064)
#define PIO_PUSR(port) MMIO32((port) + 0x0068)
/* 0x006C - Reserved */
#define PIO_ABSR(port) MMIO32((port) + 0x0070)
/* 0x0074-0x007C - Reserved */
#define PIO_SCIFSR(port) MMIO32((port) + 0x0080)
#define PIO_DIFSR(port) MMIO32((port) + 0x0084)
#define PIO_IFDGSR(port) MMIO32((port) + 0x0088)
#define PIO_SCDR(port) MMIO32((port) + 0x008C)
/* 0x0090-0x009C - Reserved */
#define PIO_OWER(port) MMIO32((port) + 0x00A0)
#define PIO_OWDR(port) MMIO32((port) + 0x00A4)
#define PIO_OWSR(port) MMIO32((port) + 0x00A8)
/* 0x00AC - Reserved */
#define PIO_AIMER(port) MMIO32((port) + 0x00B0)
#define PIO_AIMDR(port) MMIO32((port) + 0x00B4)
#define PIO_AIMMR(port) MMIO32((port) + 0x00B8)
/* 0x00BC - Reserved */
#define PIO_ESR(port) MMIO32((port) + 0x00C0)
#define PIO_LSR(port) MMIO32((port) + 0x00C4)
#define PIO_ELSR(port) MMIO32((port) + 0x00C8)
/* 0x00CC - Reserved */
#define PIO_FELLSR(port) MMIO32((port) + 0x00D0)
#define PIO_REHLSR(port) MMIO32((port) + 0x00D4)
#define PIO_FRLHSR(port) MMIO32((port) + 0x00D8)
/* 0x00DC - Reserved */
#define PIO_LOCKSR(port) MMIO32((port) + 0x00E0)
#define PIO_WPMR(port) MMIO32((port) + 0x00E4)
#define PIO_WPSR(port) MMIO32((port) + 0x00E8)
/* 0x00EC-0x0144 - Reserved */
#if defined(SAM3A)
# include <libopencm3/sam/3a/pio.h>
#elif defined(SAM3N)
# include <libopencm3/sam/3n/pio.h>
#elif defined(SAM3S)
# include <libopencm3/sam/3s/pio.h>
#elif defined(SAM3U)
# include <libopencm3/sam/3u/pio.h>
#elif defined(SAM3X)
# include <libopencm3/sam/3x/pio.h>
#else
# error "sam family not defined."
#endif

2
lib/sam/3a/Makefile
View File

@ -29,7 +29,7 @@ CFLAGS = -Os -g -Wall -Wextra -I../../../include -fno-common \
-ffunction-sections -fdata-sections -MD -DSAM3A
# ARFLAGS = rcsv
ARFLAGS = rcs
OBJS = gpio.o pmc.o usart.o
OBJS = gpio_common_all.o gpio_common_3a3u3x.o pmc.o usart.o
VPATH += ../../usb:../../cm3:../common

2
lib/sam/3n/Makefile
View File

@ -29,7 +29,7 @@ CFLAGS = -Os -g -Wall -Wextra -I../../../include -fno-common \
-ffunction-sections -fdata-sections -MD -DSAM3N
# ARFLAGS = rcsv
ARFLAGS = rcs
OBJS = gpio.o pmc.o usart.o
OBJS = gpio_common_all.o gpio_common_3n3s.o pmc.o usart.o
VPATH += ../../cm3:../common

2
lib/sam/3s/Makefile
View File

@ -30,7 +30,7 @@ CFLAGS = -Os -g -Wall -Wextra -I../../../include -fno-common \
-ffunction-sections -fdata-sections -MD -DSAM3S
# ARFLAGS = rcsv
ARFLAGS = rcs
OBJS = gpio.o pmc.o usart.o
OBJS = gpio_common_all.o gpio_common_3n3s.o pmc.o usart.o
VPATH += ../../usb:../../cm3:../common

2
lib/sam/3u/Makefile
View File

@ -30,7 +30,7 @@ CFLAGS = -Os -g -Wall -Wextra -I../../../include -fno-common \
-ffunction-sections -fdata-sections -MD -DSAM3U
# ARFLAGS = rcsv
ARFLAGS = rcs
OBJS = gpio.o pmc.o usart.o
OBJS = gpio_common_all.o gpio_common_3a3u3x.o pmc.o usart.o
VPATH += ../../usb:../../cm3:../common

2
lib/sam/3x/Makefile
View File

@ -29,7 +29,7 @@ CFLAGS = -Os -g -Wall -Wextra -I../../../include -fno-common \
-ffunction-sections -fdata-sections -MD -DSAM3X
# ARFLAGS = rcsv
ARFLAGS = rcs
OBJS = gpio.o pmc.o usart.o
OBJS = gpio_common_all.o gpio_common_3a3u3x.o pmc.o usart.o
VPATH += ../../usb:../../cm3:../common

39
lib/sam/common/gpio.c → lib/sam/common/gpio_common_3a3u3x.c
View File

@ -1,7 +1,20 @@
/** @addtogroup gpio_defines
*
* @brief <b>Access functions for the SAM3A/U/X I/O Controller</b>
* @ingroup SAM3_defines
* LGPL License Terms @ref lgpl_license
* @author @htmlonly &copy; @endhtmlonly 2012
* Gareth McMullin <gareth@blacksphere.co.nz>
* @author @htmlonly &copy; @endhtmlonly 2014
* Felix Held <felix-libopencm3@felixheld.de>
*
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2012 Gareth McMullin <gareth@blacksphere.co.nz>
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
@ -19,16 +32,20 @@
#include <libopencm3/sam/gpio.h>
/** @brief Initialize GPIO pins
*
* @param[in] port uint32_t: GPIO Port base address
* @param[in] pin uint32_t
* @param[in] flags enum gpio_flags
*/
void gpio_init(uint32_t port, uint32_t pins, enum gpio_flags flags)
{
switch (flags & 3) {
switch (flags & 0x7) {
case GPIO_FLAG_GPINPUT:
/* input mode doesn't really exist, so we make a high
* output in open-drain mode
*/
PIO_SODR(port) = pins;
flags |= GPIO_FLAG_OPEN_DRAIN;
/* fall through */
PIO_ODR(port) = pins;
PIO_PER(port) = pins;
break;
case GPIO_FLAG_GPOUTPUT:
PIO_OER(port) = pins;
PIO_PER(port) = pins;
@ -54,11 +71,3 @@ void gpio_init(uint32_t port, uint32_t pins, enum gpio_flags flags)
PIO_PUDR(port) = pins;
}
}
void gpio_toggle(uint32_t gpioport, uint32_t gpios)
{
uint32_t odsr = PIO_ODSR(gpioport);
PIO_CODR(gpioport) = odsr & gpios;
PIO_SODR(gpioport) = ~odsr & gpios;
}

86
lib/sam/common/gpio_common_3n3s.c Normal file
View File

@ -0,0 +1,86 @@
/** @addtogroup gpio_defines
*
* @brief <b>Access functions for the SAM3N/S I/O Controller</b>
* @ingroup SAM3_defines
* LGPL License Terms @ref lgpl_license
* @author @htmlonly &copy; @endhtmlonly 2012
* Gareth McMullin <gareth@blacksphere.co.nz>
* @author @htmlonly &copy; @endhtmlonly 2014
* Felix Held <felix-libopencm3@felixheld.de>
*
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2012 Gareth McMullin <gareth@blacksphere.co.nz>
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/sam/gpio.h>
/** @brief Initialize GPIO pins
*
* @param[in] port uint32_t: GPIO Port base address
* @param[in] pin uint32_t
* @param[in] flags enum gpio_flags
*/
void gpio_init(uint32_t port, uint32_t pins, enum gpio_flags flags)
{
switch (flags & 0x7) {
case GPIO_FLAG_GPINPUT:
PIO_ODR(port) = pins;
PIO_PER(port) = pins;
break;
case GPIO_FLAG_GPOUTPUT:
PIO_OER(port) = pins;
PIO_PER(port) = pins;
break;
case GPIO_FLAG_PERIPHA:
PIO_ABCDSR1(port) &= ~pins;
PIO_ABCDSR2(port) &= ~pins;
PIO_PDR(port) = pins;
break;
case GPIO_FLAG_PERIPHB:
PIO_ABCDSR1(port) |= pins;
PIO_ABCDSR2(port) &= ~pins;
PIO_PDR(port) = pins;
break;
case GPIO_FLAG_PERIPHC:
PIO_ABCDSR1(port) &= ~pins;
PIO_ABCDSR2(port) |= pins;
PIO_PDR(port) = pins;
break;
case GPIO_FLAG_PERIPHD:
PIO_ABCDSR1(port) |= pins;
PIO_ABCDSR2(port) |= pins;
PIO_PDR(port) = pins;
break;
}
if (flags & GPIO_FLAG_OPEN_DRAIN) {
PIO_MDER(port) = pins;
} else {
PIO_MDDR(port) = pins;
}
if (flags & GPIO_FLAG_PULL_UP) {
PIO_PUER(port) = pins;
} else {
PIO_PUDR(port) = pins;
}
}

66
lib/sam/common/gpio_common_all.c Normal file
View File

@ -0,0 +1,66 @@
/** @addtogroup gpio_defines
*
* @brief <b>Access functions for the SAM3 I/O Controller</b>
* @ingroup SAM3_defines
* LGPL License Terms @ref lgpl_license
* @author @htmlonly &copy; @endhtmlonly 2012
* Gareth McMullin <gareth@blacksphere.co.nz>
* @author @htmlonly &copy; @endhtmlonly 2014
* Felix Held <felix-libopencm3@felixheld.de>
*
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2012 Gareth McMullin <gareth@blacksphere.co.nz>
* Copyright (C) 2014 Felix Held <felix-libopencm3@felixheld.de>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/sam/gpio.h>
/** @brief Atomic set output
*
* @param[in] gpioport uint32_t: GPIO Port base address
* @param[in] gpios uint32_t
*/
void gpio_set(uint32_t gpioport, uint32_t gpios)
{
PIO_SODR(gpioport) = gpios;
}
/** @brief Atomic clear output
*
* @param[in] gpioport uint32_t: GPIO Port base address
* @param[in] gpios uint32_t
*/
void gpio_clear(uint32_t gpioport, uint32_t gpios)
{
PIO_CODR(gpioport) = gpios;
}
/** @brief Toggle output
*
* @param[in] gpioport uint32_t: GPIO Port base address
* @param[in] gpios uint32_t
*/
void gpio_toggle(uint32_t gpioport, uint32_t gpios)
{
uint32_t odsr = PIO_ODSR(gpioport);
PIO_CODR(gpioport) = odsr & gpios;
PIO_SODR(gpioport) = ~odsr & gpios;
}