f00569816f
1. No .c file should include a "Public Types" section. Only a header file can define a public type. A .c file can only define a private type. Several files contained private type definitions. The section that they were defined in, however, was incorrectly named "Public Types." Those were easilty changed to "Private Types" which is what they are. 2. No .c file should include a "Public Function Prototypes" section. All global function prototypes should be provided via a header file and never declared with a .c file. For No. 2, I corrected as many cases as was reasonable for the time that I had available. But there are still a dozen or so .c files that declare "Public Function Prototypes" within a .c file. This is bad programming style. These declarations should all be moved to the proper header files.
202 lines
5.1 KiB
C
202 lines
5.1 KiB
C
/***************************************************************************
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* boards/arm/cxd56xx/drivers/audio/cxd56_audio_beep.c
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*
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* Copyright 2018 Sony Semiconductor Solutions Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name of Sony Semiconductor Solutions Corporation nor
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* the names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/***************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include "cxd56_audio_config.h"
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#include "cxd56_audio_ac_reg.h"
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#include "cxd56_audio_beep.h"
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/***************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Maximum frequency. */
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#define FREQ_MAX 4085
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/* Minimum frequency. */
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#define FREQ_MIN 94
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/* Maximum volume. */
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#define VOL_MAX 0
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/* Minimum volume. */
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#define VOL_MIN -90
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/***************************************************************************
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* Private Data
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****************************************************************************/
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static bool g_beep = false;
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static const uint16_t g_beepfreqtable[] =
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{
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120, 127, 134, 142, 151, 160, 169, 180, 190, 201, 214, 226,
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240, 254, 269, 285, 302, 320, 339, 360, 381, 403, 428, 453,
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480, 509, 539, 571, 606, 642, 681, 719, 762, 810, 857, 910,
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965, 1021, 1079, 1143, 1215, 1289, 1362, 1444, 1536, 1627, 1714, 1829,
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1939, 2043, 2182, 2313, 2400, 2560, 2704, 2866, 3048, 3200, 3429, 3623,
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3840, 4085, 94
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};
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/***************************************************************************
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* Private Functions
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****************************************************************************/
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uint32_t convert_freq(uint32_t freq)
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{
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uint32_t prev;
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uint32_t i;
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for (i = 0; i < sizeof(g_beepfreqtable) / sizeof(uint16_t); i++)
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{
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prev = (i + 62) % 63;
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if (freq < g_beepfreqtable[i])
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{
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if (prev == 62)
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{
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break;
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}
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else if(g_beepfreqtable[prev] <= freq)
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{
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break;
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}
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}
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}
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return prev;
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}
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/***************************************************************************
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* Public Functions
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****************************************************************************/
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CXD56_AUDIO_ECODE cxd56_audio_beep_set_freq(uint16_t freq)
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{
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uint32_t conv_freq = 0;
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if (freq > FREQ_MAX)
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{
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return CXD56_AUDIO_ECODE_BEP_FREQ_MAX;
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}
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if (freq < FREQ_MIN)
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{
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return CXD56_AUDIO_ECODE_BEP_FREQ_MIN;
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}
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/* Mute beep. */
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cxd56_audio_ac_reg_disable_beep();
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/* Convert Frequency. */
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conv_freq = convert_freq(freq);
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/* Set beep parameter. */
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cxd56_audio_ac_reg_set_beep_freq(conv_freq);
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if (g_beep)
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{
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cxd56_audio_ac_reg_enable_beep();
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}
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return CXD56_AUDIO_ECODE_OK;
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}
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CXD56_AUDIO_ECODE cxd56_audio_beep_set_vol(int16_t vol)
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{
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uint32_t conv_vol = 0;
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if (vol > VOL_MAX)
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{
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return CXD56_AUDIO_ECODE_BEP_VOL_MAX;
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}
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if (vol < VOL_MIN)
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{
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return CXD56_AUDIO_ECODE_BEP_VOL_MIN;
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}
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/* Mute off. */
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cxd56_audio_ac_reg_disable_beep();
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/* Convert Volume. */
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if (vol != 0)
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{
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conv_vol = -vol / 3;
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}
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else
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{
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conv_vol = 0;
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}
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/* Set beep parameter. */
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cxd56_audio_ac_reg_set_beep_vol(conv_vol);
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if (g_beep)
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{
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cxd56_audio_ac_reg_enable_beep();
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}
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return CXD56_AUDIO_ECODE_OK;
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}
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void cxd56_audio_beep_play(void)
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{
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g_beep = true;
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cxd56_audio_ac_reg_enable_beep();
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}
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void cxd56_audio_beep_stop(void)
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{
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g_beep = false;
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cxd56_audio_ac_reg_disable_beep();
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}
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