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67 lines
1.9 KiB
67 lines
1.9 KiB
3 months ago
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/** @addtogroup radio_file RADIO peripheral API
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*
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* @brief <b>Access functions for the NRF51 2.4 GHz Radio </b>
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* @ingroup peripheral_apis
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* LGPL License Terms @ref lgpl_license
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* @author @htmlonly © @endhtmlonly 2016
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* Maxim Sloyko <maxims@google.com>
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*
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*/
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/*
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* This file is part of the unicore-mx project.
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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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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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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/nrf/ficr.h>
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#include <libopencm3/nrf/radio.h>
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/**@{*/
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/** @brief Set radio mode.
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*
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* @details The function also performs all required overrides for BLE and NRF mode.
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*
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* @param[in] mode the new mode.
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* */
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void radio_set_mode(enum radio_mode mode)
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{
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/* This is alias to memory register, thus volatile */
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volatile uint32_t *override_pos = 0;
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if ((RADIO_MODE_BLE_1MBIT == mode)
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&& (FICR_OVERRIDEEN & ~FICR_OVERRIDEEN_BLE_1MBIT)) {
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/* Need to use Override */
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override_pos = &FICR_BLE_1MBIT0;
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} else if ((RADIO_MODE_NRF_1MBIT == mode)
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&& (FICR_OVERRIDEEN & ~FICR_OVERRIDEEN_NRF_1MBIT)) {
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override_pos = &FICR_NRF_1MBIT0;
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}
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if (override_pos) {
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uint8_t i;
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for (i = 0; i <= 4; ++i, ++override_pos) {
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RADIO_OVERRIDE(i) = *override_pos;
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}
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RADIO_OVERRIDE(4) |= RADIO_OVERRIDE4_ENABLE;
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} else {
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RADIO_OVERRIDE(4) &= ~RADIO_OVERRIDE4_ENABLE;
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}
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RADIO_MODE = mode;
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}
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/**@}*/
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