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SWM050: Finishes GPIO, IAP flash, sysclock, sleep/stop, and the sysctl memory map.

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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
2019-09-21 15:43:50 -05:00
committed by Karl Palsson
parent 1fbfdecb17
commit 3c4ee6f4c0
14 changed files with 760 additions and 89 deletions
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115
lib/swm050/syscon.c Normal file
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/** @addtogroup syscon_file SYSCON peripheral API
* @ingroup peripheral_apis
* LGPL License Terms @ref lgpl_license
* @author @htmlonly &copy; @endhtmlonly 2019
* Icenowy Zheng <icenowy@aosc.io>
* @author @htmlonly &copy; @endhtmlonly 2019
* Caleb Szalacinski <contact@skiboy.net>
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2019 Icenowy Zheng <icenowy@aosc.io>
* Copyright (C) 2019 Caleb Szalacinski <contact@skiboy.net>
*
* 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/swm050/syscon.h>
#include <libopencm3/swm050/gpio.h>
/*---------------------------------------------------------------------------*/
/** @brief Select the alternative function of a Group of Pins
Select the alternative function of one or more pins of GPIO.
@param[in] gpios Pin identifiers @ref gpio_pin_id
If multiple pins are to be changed, use bitwise OR '|' to separate
them.
@param[in] af_en Whether alternative function is selected
*/
void syscon_sel_af(uint16_t gpios, bool af_en)
{
uint32_t masked_reg32;
if (gpios & GPIO0) {
masked_reg32 = SYSCON_PORTA_SEL & (~0x3);
SYSCON_PORTA_SEL = masked_reg32 | (af_en ? 0x1 : 0x0);
}
if (gpios & GPIO1) {
masked_reg32 = SYSCON_PORTA_SEL & (~0xc);
SYSCON_PORTA_SEL = masked_reg32 | (af_en ? 0x4 : 0x0);
}
if (gpios & GPIO2) {
masked_reg32 = SYSCON_PORTA_SEL & (~0x30);
SYSCON_PORTA_SEL = masked_reg32 | (af_en ? 0x10 : 0x0);
}
if (gpios & GPIO7) {
masked_reg32 = SYSCON_PORTA_SEL & (~0xc000);
SYSCON_PORTA_SEL = masked_reg32 | (af_en ? 0x4000 : 0x0);
}
}
/*---------------------------------------------------------------------------*/
/** @brief Enable the internal pull-up of a Group of Pins
Enable or disable the internal pull-up of one or more pins of GPIO.
@param[in] gpios Pin identifiers @ref gpio_pin_id
If multiple pins are to be changed, use bitwise OR '|' to separate
them.
@param[in] en True to enable pull-up, false to disable.
*/
void syscon_pullup(uint16_t gpios, bool en)
{
if (en) {
SYSCON_PORTA_PULLUP |= gpios;
} else {
SYSCON_PORTA_PULLUP &= ~gpios;
}
}
/*---------------------------------------------------------------------------*/
/** @brief Enable the input function of a Group of Pins
Enable or disable the input function of one or more pins of GPIO. Disabling
the input function of pins decreases the power usage of the MCU.
@param[in] gpios Pin identifiers @ref gpio_pin_id
If multiple pins are to be changed, use bitwise OR '|' to separate
them.
@param[in] en True to enable input function.
*/
void syscon_input_enable(uint16_t gpios, bool en)
{
if (en) {
SYSCON_PORTA_INEN &= ~gpios;
} else {
SYSCON_PORTA_INEN |= gpios;
}
}
/*---------------------------------------------------------------------------*/
/** @brief Select the SWD function of GPIO 1/2
Enable or disable the SWD debugging port at GPIO 1/2. When SWD debugging port
is enabled, GPIO and AF of the SWD pins will be both unavailable.
@param[in] en True to enable SWD.
*/
void syscon_sel_swd(bool en)
{
SYSCON_SWD_SEL = en;
}
/**@}*/