amiro-lld / source / alld_pklcs1212e4001.c @ fce9feec
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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 | Copyright (C) 2016..2018 Thomas Schöpping et al.
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| 4 | |||
| 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 | * @file alld_pklcs1212e4001.c
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| 21 | * @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 | d6728c5b | Thomas Schöpping | #include <alld_pklcs1212e4001.h> |
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| 29 | #if defined(AMIROLLD_CFG_USE_PKLCS1212E4001) || defined(__DOXYGEN__)
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| 30 | |||
| 31 | /**
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| 32 | * @brief Check the configuration of the PWM for the correct frequency.
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| 33 | * @param[in] pwm The PWM driver to check.
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| 34 | * @return The return status indicates whether the function call was successful.
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| 35 | */
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| 36 | inline apalExitStatus_t
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| 37 | pklcs1212e4001_lld_checkPWMconfiguration(apalPWMDriver_t* pwm) |
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| 38 | {
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| 39 | apalDbgAssert(pwm != NULL);
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| 40 | |||
| 41 | apalPWMfrequency_t frequency = 0;
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| 42 | apalPWMperiod_t period = 0;
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| 43 | apalExitStatus_t status = apalPWMGetFrequency(pwm, &frequency); |
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| 44 | status |= apalPWMGetPeriod(pwm, &period); |
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| 45 | if (frequency / period == PKLCS1212E4001_LLD_FREQUENCY_SPEC) {
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| 46 | status |= APAL_STATUS_OK; |
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| 47 | } else if (frequency / period >= PKLCS1212E4001_LLD_FREQUENCY_MIN && |
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| 48 | frequency / period <= PKLCS1212E4001_LLD_FREQUENCY_MAX) {
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| 49 | status |= APAL_STATUS_WARNING; |
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| 50 | } else {
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| 51 | status |= APAL_STATUS_INVALIDARGUMENTS; |
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| 52 | } |
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| 53 | |||
| 54 | return status;
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| 55 | } |
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| 56 | |||
| 57 | /**
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| 58 | * @brief Turns the buzzer on or off.
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| 59 | * @param[in] pwm The PWM driver to use
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| 60 | * @param[in] channel The PWM channel to enable/disable.
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| 61 | * @param[in] enable Specifies whether the buzzer shall be turned on (true) or off (false).
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| 62 | * @return The return status indicates whether the function call was successful.
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| 63 | */
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| 64 | inline apalExitStatus_t
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| 65 | pklcs1212e4001_lld_enable(apalPWMDriver_t* pwm, const apalPWMchannel_t channel, const bool enable) |
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| 66 | {
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| 67 | apalDbgAssert(pwm != NULL);
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| 68 | |||
| 69 | if (enable) {
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| 70 | apalPWMperiod_t period = 0;
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| 71 | apalExitStatus_t status = apalPWMGetFrequency(pwm, &period); |
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| 72 | status |= apalPWMSet(pwm, channel, period/2);
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| 73 | return status;
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| 74 | } else {
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| 75 | return apalPWMSet(pwm, channel, 0); |
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| 76 | } |
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| 77 | } |
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| 78 | |||
| 79 | #endif /* defined(AMIROLLD_CFG_USE_PKLCS1212E4001) */ |
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| 80 | 5e2f673b | Marc Rothmann | |
| 81 | /** @} */ |