149 lines
3.5 KiB
C
149 lines
3.5 KiB
C
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#include "app_user.h"
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#include "drvs.h"
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#include "regs.h"
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#include "adpcm.h"
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#include "string.h"
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#include "sadc.h"
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#include "b6x.h"
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#include "bledef.h"
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#include "hid_desc.h"
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#include "app.h"
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#include "prf_sess.h"
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#include "app_user.h"
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#if (VOICE)
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#define ADPCM_BLOCK_SIZE (128)
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#define SAMPLE_DATA_SIZE (ADPCM_BLOCK_SIZE - 4)
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#define READ_UNIT_SIZE (SAMPLE_DATA_SIZE * 4 + 2)
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struct ADPCMBlock
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{
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short sample0;
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char index;
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char RESERVED;
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char sampledata[SAMPLE_DATA_SIZE];
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};
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#if (0)
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#define PCM_SAMPLE_NB (216) // 256: 32ms 8000Hz
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#else
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#define PCM_SAMPLE_NB (READ_UNIT_SIZE/2) // 256: 32ms 8000Hz
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#endif
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#define MIC_IB_PAD 2
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#define MIC_IN_PAD 3
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#define DMA_PCM_CHAN DMA_CH0
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__ATTR_SRAM int16_t pcm_buff0[PCM_SAMPLE_NB];
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__ATTR_SRAM int16_t pcm_buff1[PCM_SAMPLE_NB];
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__ATTR_SRAM struct ADPCMBlock adpcm_buff;
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struct adpcm_state state;
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void uartTxSend(const uint8_t *data, uint16_t len)
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{
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while(len--)
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{
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uart_putc(0, *data++);
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}
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}
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uint16_t voiceSendNB;
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uint16_t voiceSendOK;
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uint8_t voiceSendFt;
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void micInit(void)
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{
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GPIO_DIR_CLR(GPIO02 | GPIO03);
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iom_ctrl(MIC_IB_PAD, IOM_HIZ);
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iom_ctrl(MIC_IN_PAD, IOM_ANALOG); // 5
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// sadc init
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sadc_init(SADC_ANA_DFLT | SADC_INBUF_BYPSS_BIT);
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dma_init();
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// DMA Conf: direct Init
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SADC->CTRL.SADC_DMAC_EN = 0;
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DMA_SADC_INIT(DMA_PCM_CHAN);
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DMA_SADC_PCM_CONF(DMA_PCM_CHAN, pcm_buff0, PCM_SAMPLE_NB, CCM_PING_PONG);
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DMA_SADC_PCM_CONF(DMA_PCM_CHAN | DMA_CH_ALT, pcm_buff1, PCM_SAMPLE_NB, CCM_PING_PONG);
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sadc_conf((SADC_CR_DFLT & ~(SADC_CR_HPF_COEF_MSK|SADC_CR_CLK_DIV_MSK)) | SADC_CR_HPF(3) | SADC_CR_CLK(0));
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sadc_pcm(SADC_MIC_DFLT & (~SADC_PGA_VOL_MSK | SADC_PGA_VOL(0)));
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state.index = 0;
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state.valprev = 0;
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voiceSendNB = 0;
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voiceSendOK = 0;
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voiceSendFt = 4;
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}
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void voice_send(uint16_t len, const uint8_t *data)
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{
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voiceSendNB++;
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if (hids_report_send(app_env.curidx, RPT_IDX_MIC, len, data) == LE_SUCCESS)
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{
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voiceSendOK++;
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}
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}
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#if (MODE_SELECT)
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void micPut(void)
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{
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// primary or alternate transfer done
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if (dma_chnl_done(DMA_PCM_CHAN))
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{
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if (dma_chnl_reload(DMA_PCM_CHAN)) // 0x100
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{
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uartTxSend((uint8_t *)&pcm_buff1, PCM_SAMPLE_NB*2);
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}
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else
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{
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uartTxSend((uint8_t *)&pcm_buff0, PCM_SAMPLE_NB*2);
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}
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}
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}
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#else
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void micPut(void)
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{
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// primary or alternate transfer done
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if (dma_chnl_done(DMA_PCM_CHAN))
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{
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if (voiceSendFt)
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{
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// <20><><EFBFBD><EFBFBD>
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dma_chnl_reload(DMA_PCM_CHAN);
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voiceSendFt--;
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return;
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}
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adpcm_buff.index = state.index;
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if (dma_chnl_reload(DMA_PCM_CHAN)) // 0x100
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{
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adpcm_buff.sample0 = pcm_buff1[0];
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state.valprev = pcm_buff1[0];
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adpcm_coder((short*)&pcm_buff1[1], (char *)adpcm_buff.sampledata, (PCM_SAMPLE_NB - 1), &state);
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}
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else
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{
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adpcm_buff.sample0 = pcm_buff0[0];
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state.valprev = pcm_buff0[0];
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adpcm_coder((short*)&pcm_buff0[1], (char *)adpcm_buff.sampledata, (PCM_SAMPLE_NB - 1), &state);
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}
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// uartTxSend((uint8_t *)&adpcm_buff, ADPCM_BLOCK_SIZE);
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// sess_txd_send(app_env.curidx, ADPCM_BLOCK_SIZE, (uint8_t *)&adpcm_buff);
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voice_send(ADPCM_BLOCK_SIZE, (uint8_t *)&adpcm_buff);
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}
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}
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#endif
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#endif
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