SWM050: Finishes GPIO, IAP flash, sysclock, sleep/stop, and the sysctl memory map.
Updates the main memory map and the makefile. Adds the SWM050 to devices.data, so that a linker script can be automatically generated. Reviewed-by: Karl Palsson <karlp@tweak.net.au>
This commit is contained in:
Caleb Szalacinski
committed by
Karl Palsson
Karl Palsson
parent
1fbfdecb17
commit
3c4ee6f4c0
@@ -1,10 +1,16 @@
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/** @addtogroup gpio_file GPIO peripheral API
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* @ingroup peripheral_apis
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* LGPL License Terms @ref lgpl_license
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* @author @htmlonly © @endhtmlonly 2019
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* Icenowy Zheng <icenowy@aosc.io>
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* @author @htmlonly © @endhtmlonly 2019
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* Caleb Szalacinski <contact@skiboy.net>
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*/
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2019 Icenowy Zheng <icenowy@aosc.io>
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* Copyright (C) 2019 Caleb Szalacinski <contact@skiboy.net>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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@@ -19,10 +25,8 @@
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/swm050/gpio.h>
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/**@{*/
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#include <libopencm3/swm050/gpio.h>
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/*---------------------------------------------------------------------------*/
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/** @brief Set a Group of Pins
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@@ -36,7 +40,7 @@ atomic pin setting.
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*/
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void gpio_set(uint16_t gpios)
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{
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GPIO_DATA |= gpios;
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GPIO_ADATA |= gpios;
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}
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/*---------------------------------------------------------------------------*/
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@@ -51,7 +55,7 @@ atomic pin setting.
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*/
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void gpio_clear(uint16_t gpios)
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{
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GPIO_DATA &= ~gpios;
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GPIO_ADATA &= ~gpios;
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}
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/*---------------------------------------------------------------------------*/
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@@ -65,7 +69,7 @@ void gpio_clear(uint16_t gpios)
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*/
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uint16_t gpio_get(uint16_t gpios)
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{
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return GPIO_EXT & gpios;
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return GPIO_AEXT & gpios;
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}
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/*---------------------------------------------------------------------------*/
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@@ -79,8 +83,8 @@ Toggle one or more pins of GPIO. The non-toggled pins are not affected.
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*/
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void gpio_toggle(uint16_t gpios)
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{
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uint32_t curr_status = GPIO_DATA & gpios;
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GPIO_DATA = (GPIO_DATA & (~gpios)) | (~curr_status);
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uint32_t curr_status = GPIO_ADATA & gpios;
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GPIO_ADATA = (GPIO_ADATA & (~gpios)) | (~curr_status);
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}
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/*---------------------------------------------------------------------------*/
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@@ -94,7 +98,7 @@ Set the direction of one or more pins of GPIO to input.
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*/
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void gpio_input(uint16_t gpios)
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{
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GPIO_DIR &= ~gpios;
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GPIO_ADIR &= ~gpios;
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}
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/*---------------------------------------------------------------------------*/
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@@ -108,90 +112,142 @@ Set the direction of one or more pins of GPIO to output.
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*/
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void gpio_output(uint16_t gpios)
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{
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GPIO_DIR |= gpios;
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GPIO_ADIR |= gpios;
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}
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/*---------------------------------------------------------------------------*/
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/** @brief Select the alternative function of a Group of Pins
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Select the alternative function of one or more pins of GPIO.
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/*---------------------------------------------------------------------------*/
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/** @brief Sets the pins as external interrupts, rather than normal GPIO
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Enable interrupts on the selected pins. If you want to quickly
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switch on and off interrupts, use gpio_int_mask() after calling this.
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@param[in] gpios Pin identifiers @ref gpio_pin_id
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If multiple pins are to be changed, use bitwise OR '|' to separate
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them.
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@param[in] af_en Whether alternative function is selected
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@param[in] en True to enable, false to disable.
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*/
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void gpio_sel_af(uint16_t gpios, bool af_en)
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void gpio_int_enable(uint16_t gpios, bool en)
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{
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if (gpios & GPIO0) {
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GPIO_SEL = (GPIO_SEL & (~0x3)) | (af_en ? 0x1 : 0x0);
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}
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if (gpios & GPIO1) {
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GPIO_SEL = (GPIO_SEL & (~0xc)) | (af_en ? 0x4 : 0x0);
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}
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if (gpios & GPIO2) {
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GPIO_SEL = (GPIO_SEL & (~0x30)) | (af_en ? 0x10 : 0x0);
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}
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if (gpios & GPIO7) {
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GPIO_SEL = (GPIO_SEL & (~0xc000)) | (af_en ? 0x4000 : 0x0);
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if (en) {
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GPIO_INTEN_A |= gpios;
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} else {
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GPIO_INTEN_A &= ~gpios;
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}
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}
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/*---------------------------------------------------------------------------*/
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/** @brief Enable the internal pull-up of a Group of Pins
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Enable or disable the internal pull-up of one or more pins of GPIO.
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/*---------------------------------------------------------------------------*/
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/** @brief Sets bits in the interrupt mask
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When interrupts are masked, it prevents them from being received, which is a
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quicker way to turn on and off GPIO interrupts (after calling gpio_int_en()).
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@param[in] gpios Pin identifiers @ref gpio_pin_id
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If multiple pins are to be changed, use bitwise OR '|' to separate
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them.
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@param[in] en Bool. Whether pull-up is enabled
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@param[in] masked Pin mask selection @ref gpio_int_masked
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Whether to mask or unmask pins.
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*/
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void gpio_pullup(uint16_t gpios, bool en)
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void gpio_int_mask(uint16_t gpios, enum gpio_int_masked masked)
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{
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if (en) {
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GPIO_PULLUP |= gpios;
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if (masked) {
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GPIO_INTMASK_A |= gpios;
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} else {
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GPIO_PULLUP &= ~gpios;
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GPIO_INTMASK_A &= ~gpios;
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}
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}
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/*---------------------------------------------------------------------------*/
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/** @brief Enable the input function of a Group of Pins
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Enable or disable the input function of one or more pins of GPIO. Disabling
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the input function of pins decreases the power usage of the MCU.
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/*---------------------------------------------------------------------------*/
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/** @brief Sets whether the pins are edge triggered or level triggered
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Sets whether the pins are edge triggered or level triggered. Edge-triggered
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interrupt bits must be cleared by software.
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@param[in] gpios Pin identifiers @ref gpio_pin_id
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If multiple pins are to be changed, use bitwise OR '|' to separate
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them.
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@param[in] en true to enable input function.
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@param[in] type Trigger Type @ref gpio_trig_type
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Level or edge triggered
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*/
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void gpio_in_en(uint16_t gpios, bool en)
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void gpio_int_type(uint16_t gpios, enum gpio_trig_type type)
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{
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if (en) {
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GPIO_INEN &= ~gpios;
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if (type) {
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GPIO_INTLEVEL_A |= gpios;
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} else {
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GPIO_INEN |= gpios;
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GPIO_INTLEVEL_A &= ~gpios;
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}
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}
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/*---------------------------------------------------------------------------*/
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/** @brief Select the SWD function of GPIO 1/2
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/** @brief Sets the interrupt trigger polarity
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Enable or disable the SWD debugging port at GPIO 1/2. When SWD debugging port
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is enabled, GPIO and AF of the SWD pins will be both unavailable.
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Sets whether the interrupt is triggered by a high or low level/edge.
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@param[in] en true to enable SWD.
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@param[in] gpios Pin identifiers @ref gpio_pin_id
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If multiple pins are to be changed, use bitwise OR '|' to separate
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them.
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@param[in] pol Polarity @ref gpio_pol
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High or low level/edge
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*/
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void gpio_sel_swd(bool en)
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void gpio_int_pol(uint16_t gpios, enum gpio_pol pol)
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{
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if (en) {
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SWD_SEL = 1;
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if (pol) {
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GPIO_INTPOLARITY_A |= gpios;
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} else {
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SWD_SEL = 0;
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GPIO_INTPOLARITY_A &= ~gpios;
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}
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}
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/*---------------------------------------------------------------------------*/
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/** @brief Gets the masked interrupt status
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Returns the pin interrupt status masked with the mask set
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in @ref gpio_int_mask().
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@return The masked pin interrupt status as a bitfield. The bit position of the
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pin value returned corresponds to the pin number.
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*/
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uint16_t gpio_int_status(void)
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{
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return GPIO_INTSTAT_A;
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}
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/*---------------------------------------------------------------------------*/
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/** @brief Gets the raw unmasked interrupt status
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Returns the raw unmasked interrupt status.
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@return The unmasked pin interrupt status as a bitfield. The bit position of the
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pin value returned corresponds to the pin number.
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*/
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uint16_t gpio_int_raw_status(void)
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{
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return GPIO_RAWINTSTAT_A;
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}
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/*---------------------------------------------------------------------------*/
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/** @brief Clear the specified pin interrupts
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Clears the specified pin interrupts. Edge-triggered interrupts must be cleared
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by software.
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@param[in] gpios Pin identifiers @ref gpio_pin_id
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If multiple pins are to be changed, use bitwise OR '|' to separate
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them.
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*/
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void gpio_int_clear(uint16_t gpios)
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{
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GPIO_INTEOI_A |= gpios;
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}
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/**@}*/
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