amiro-lld / drivers / PKxxxExxx / v1 / alld_PKxxxExxx.c @ df051abd
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| 1 | d6728c5b | Thomas Schöpping | /*
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| 2 | AMiRo-LLD is a compilation of low-level hardware drivers for the Autonomous Mini Robot (AMiRo) platform.
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| 3 | f125ae07 | Thomas Schöpping | Copyright (C) 2016..2019 Thomas Schöpping et al.
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| 4 | d6728c5b | Thomas Schöpping | |
| 5 | This program is free software: you can redistribute it and/or modify
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| 6 | f0ca400f | Thomas Schöpping | it under the terms of the GNU Lesser General Public License as published by
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| 7 | d6728c5b | Thomas Schöpping | the Free Software Foundation, either version 3 of the License, or
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| 8 | (at your option) any later version.
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| 9 | |||
| 10 | This program is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | f0ca400f | Thomas Schöpping | GNU Lesser General Public License for more details.
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| 14 | d6728c5b | Thomas Schöpping | |
| 15 | f0ca400f | Thomas Schöpping | You should have received a copy of the GNU Lesser General Public License
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| 16 | d6728c5b | Thomas Schöpping | along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 17 | */
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| 18 | |||
| 19 | 5e2f673b | Marc Rothmann | /**
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| 20 | 9466e34d | Thomas Schöpping | * @file alld_PKxxxExxx.c
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| 21 | 5e2f673b | Marc Rothmann | * @brief Buzzer function implementations.
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| 22 | *
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| 23 | * @addtogroup lld_buzzer
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| 24 | * @{
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| 25 | */
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| 26 | |||
| 27 | 1d5bcc82 | Thomas Schöpping | #include <alld_PKxxxExxx.h> |
| 28 | d6728c5b | Thomas Schöpping | |
| 29 | ef078306 | Thomas Schöpping | /******************************************************************************/
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| 30 | /* LOCAL DEFINITIONS */
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| 31 | /******************************************************************************/
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| 32 | |||
| 33 | /******************************************************************************/
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| 34 | /* EXPORTED VARIABLES */
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| 35 | /******************************************************************************/
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| 36 | |||
| 37 | /******************************************************************************/
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| 38 | /* LOCAL TYPES */
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| 39 | /******************************************************************************/
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| 40 | |||
| 41 | /******************************************************************************/
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| 42 | /* LOCAL VARIABLES */
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| 43 | /******************************************************************************/
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| 44 | |||
| 45 | /******************************************************************************/
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| 46 | /* LOCAL FUNCTIONS */
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| 47 | /******************************************************************************/
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| 48 | |||
| 49 | /******************************************************************************/
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| 50 | /* EXPORTED FUNCTIONS */
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| 51 | /******************************************************************************/
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| 52 | |||
| 53 | d6728c5b | Thomas Schöpping | /**
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| 54 | * @brief Check the configuration of the PWM for the correct frequency.
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| 55 | * @param[in] pwm The PWM driver to check.
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| 56 | * @return The return status indicates whether the function call was successful.
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| 57 | */
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| 58 | 1d5bcc82 | Thomas Schöpping | apalExitStatus_t pkxxxexxx_lld_checkPWMconfiguration(apalPWMDriver_t* pwm) |
| 59 | d6728c5b | Thomas Schöpping | {
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| 60 | apalDbgAssert(pwm != NULL);
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| 61 | |||
| 62 | apalPWMfrequency_t frequency = 0;
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| 63 | apalPWMperiod_t period = 0;
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| 64 | apalExitStatus_t status = apalPWMGetFrequency(pwm, &frequency); |
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| 65 | status |= apalPWMGetPeriod(pwm, &period); |
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| 66 | 1d5bcc82 | Thomas Schöpping | if (frequency / period == PKxxxExxx_LLD_FREQUENCY_SPEC) {
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| 67 | d6728c5b | Thomas Schöpping | status |= APAL_STATUS_OK; |
| 68 | c3c5444e | Thomas Schöpping | } |
| 69 | #if defined(PKxxxExxx_LLD_FREQUENCY_MIN) && !defined(PKxxxExxx_LLD_FREQUENCY_MAX)
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| 70 | else if (frequency / period >= PKxxxExxx_LLD_FREQUENCY_MIN && |
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| 71 | frequency / period <= PKxxxExxx_LLD_FREQUENCY_SPEC) {
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| 72 | d6728c5b | Thomas Schöpping | status |= APAL_STATUS_WARNING; |
| 73 | c3c5444e | Thomas Schöpping | } |
| 74 | #elif !defined(PKxxxExxx_LLD_FREQUENCY_MIN) && defined(PKxxxExxx_LLD_FREQUENCY_MAX)
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| 75 | else if (frequency / period >= PKxxxExxx_LLD_FREQUENCY_SPEC && |
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| 76 | frequency / period <= PKxxxExxx_LLD_FREQUENCY_MAX) {
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| 77 | status |= APAL_STATUS_WARNING; |
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| 78 | } |
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| 79 | #elif defined(PKxxxExxx_LLD_FREQUENCY_MIN) && defined(PKxxxExxx_LLD_FREQUENCY_MAX)
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| 80 | else if (frequency / period >= PKxxxExxx_LLD_FREQUENCY_MIN && |
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| 81 | frequency / period <= PKxxxExxx_LLD_FREQUENCY_MAX) {
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| 82 | status |= APAL_STATUS_WARNING; |
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| 83 | } |
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| 84 | #endif
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| 85 | else {
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| 86 | d6728c5b | Thomas Schöpping | status |= APAL_STATUS_INVALIDARGUMENTS; |
| 87 | } |
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| 88 | |||
| 89 | return status;
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| 90 | } |
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| 91 | |||
| 92 | /**
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| 93 | * @brief Turns the buzzer on or off.
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| 94 | * @param[in] pwm The PWM driver to use
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| 95 | * @param[in] channel The PWM channel to enable/disable.
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| 96 | * @param[in] enable Specifies whether the buzzer shall be turned on (true) or off (false).
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| 97 | * @return The return status indicates whether the function call was successful.
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| 98 | */
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| 99 | 1d5bcc82 | Thomas Schöpping | apalExitStatus_t pkxxxexxx_lld_enable(apalPWMDriver_t* pwm, const apalPWMchannel_t channel, const bool enable) |
| 100 | d6728c5b | Thomas Schöpping | {
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| 101 | apalDbgAssert(pwm != NULL);
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| 102 | |||
| 103 | if (enable) {
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| 104 | apalPWMperiod_t period = 0;
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| 105 | apalExitStatus_t status = apalPWMGetFrequency(pwm, &period); |
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| 106 | status |= apalPWMSet(pwm, channel, period/2);
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| 107 | return status;
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| 108 | } else {
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| 109 | return apalPWMSet(pwm, channel, 0); |
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| 110 | } |
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| 111 | } |
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| 112 | |||
| 113 | 5e2f673b | Marc Rothmann | /** @} */
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