amiro-lld / drivers / PKxxxExxx / v1 / alld_PKxxxExxx.c @ c9774bf5
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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 | { |
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 | { |
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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