138 lines
4.2 KiB
C
138 lines
4.2 KiB
C
#include "includes.h"
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// Note Off 0x8n
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void SendNoteOffMidiEvent(uint8_t Key, uint8_t OffVal)
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{
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uint8_t midibuff[3] = {0x80 , Key , OffVal};
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USART2_SendData(midibuff,sizeof(midibuff));
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}
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// Note On 0x9n
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void SendNoteOnMidiEvent(uint8_t Key, uint8_t OnVal)
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{
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uint8_t midibuff[3] = {0x90 , Key , OnVal};
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USART2_SendData(midibuff,sizeof(midibuff));
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}
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void SendProgramChangeMidiEvent(uint8_t channel,uint8_t CC)
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{
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uint8_t midibuff[2] = {0xC0|channel , CC };
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SendMidiDataToDreamDSP(midibuff,2);
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}
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void SendVolumeChangeMidiEvent(uint8_t channel,uint8_t CC)
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{
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uint8_t midibuff[3] = {0xB0|channel ,0x07, CC };
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SendMidiDataToDreamDSP(midibuff,3);
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}
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/* Bank Select：CC0(MSB)=bank，CC32(LSB)=0。Dream 双音色库：0=伴奏，1=主弦 */
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void SendBankChangeMidiEvent(uint8_t channel, uint8_t bank)
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{
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uint8_t midibuff[3] = {0xB0|(channel & 0x0F) ,0x00, bank };
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SendMidiDataToDreamDSP(midibuff,3);
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midibuff[1] = 0x20; /* CC32 Bank LSB */
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midibuff[2] = 0;
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SendMidiDataToDreamDSP(midibuff,3);
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}
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/* 先选 Bank 再 Program Change，避免漏发 Bank Select 落到错误音色库 */
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void SendProgramWithBankMidiEvent(uint8_t channel, uint8_t bank, uint8_t program)
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{
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SendBankChangeMidiEvent(channel, bank);
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SendProgramChangeMidiEvent(channel, program);
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}
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void SendMidiDataToDreamDSP(uint8_t* buff, uint16_t cnt)
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{
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USART2_SendData(buff,cnt);
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}
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/* Roland/Dream GS：checksum = 0x80 - (addr+data 低 7 位) */
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static void Dream_Dt1(uint8_t ah, uint8_t am, uint8_t al, const uint8_t *data, uint8_t n)
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{
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uint8_t msg[16];
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uint8_t i;
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uint8_t sum;
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msg[0] = 0xF0;
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msg[1] = 0x41;
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msg[2] = 0x00;
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msg[3] = 0x42;
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msg[4] = 0x12;
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msg[5] = ah;
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msg[6] = am;
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msg[7] = al;
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sum = (uint8_t)(ah + am + al);
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for (i = 0; i < n; i++)
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{
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msg[8 + i] = data[i];
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sum = (uint8_t)(sum + data[i]);
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}
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msg[8 + n] = (uint8_t)((0x80u - (sum & 0x7Fu)) & 0x7Fu);
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msg[9 + n] = 0xF7;
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SendMidiDataToDreamDSP(msg, (uint16_t)(10u + n));
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}
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static void Dream_Dt1Byte(uint8_t ah, uint8_t am, uint8_t al, uint8_t data)
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{
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Dream_Dt1(ah, am, al, &data, 1);
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}
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/* 音师编辑器 B:Reverb / E:PEQ Normal。
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混响是 GS 系统区 40 01 30：Hall2=4，Size=Character，PreLP，Level，Time，Delay Feedback。
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PEQ 为同一套 4 段参量：增益按 0.1 dB/档、0=0 dB；频率按 Hz 的 14 位原值；Q 按 0.1 显示（2.00→20）。 */
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void Dream_ApplyEditorParams(void)
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{
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uint8_t hz[2];
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Dream_Dt1Byte(0x40, 0x01, 0x30, 4); /* Type Hall2 */
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Dream_Dt1Byte(0x40, 0x01, 0x31, 4); /* Size */
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Dream_Dt1Byte(0x40, 0x01, 0x32, 2); /* PreLP */
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Dream_Dt1Byte(0x40, 0x01, 0x33, 85); /* Level */
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Dream_Dt1Byte(0x40, 0x01, 0x34, 64); /* Time */
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Dream_Dt1Byte(0x40, 0x01, 0x35, 0); /* DelFdbck */
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/* 40 04 00.. 与编辑器从左到右、从上到下一致 */
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Dream_Dt1Byte(0x40, 0x04, 0x00, 81); /* GainLow 8.1 dB */
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Dream_Dt1Byte(0x40, 0x04, 0x01, 12); /* GainLoMid 1.2 dB */
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Dream_Dt1Byte(0x40, 0x04, 0x02, 7); /* GainHiMid 0.7 dB */
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Dream_Dt1Byte(0x40, 0x04, 0x03, 28); /* GainHigh 2.8 dB */
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hz[0] = (uint8_t)((412 >> 7) & 0x7F);
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hz[1] = (uint8_t)(412 & 0x7F);
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Dream_Dt1(0x40, 0x04, 0x04, hz, 2); /* FreqLow 412 Hz */
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hz[0] = (uint8_t)((2294 >> 7) & 0x7F);
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hz[1] = (uint8_t)(2294 & 0x7F);
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Dream_Dt1(0x40, 0x04, 0x06, hz, 2); /* FreqLoMid 2294 Hz */
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hz[0] = (uint8_t)((6048 >> 7) & 0x7F);
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hz[1] = (uint8_t)(6048 & 0x7F);
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Dream_Dt1(0x40, 0x04, 0x08, hz, 2); /* FreqHiMid 6048 Hz */
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hz[0] = (uint8_t)((3126 >> 7) & 0x7F);
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hz[1] = (uint8_t)(3126 & 0x7F);
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Dream_Dt1(0x40, 0x04, 0x0A, hz, 2); /* FreqHigh 3126 Hz */
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Dream_Dt1Byte(0x40, 0x04, 0x0C, 20); /* Q-LoMid 2.00 */
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Dream_Dt1Byte(0x40, 0x04, 0x0D, 20); /* Q-HiMid 2.00 */
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}
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#define AT32_UID_BASE 0x1FFFF7E8UL
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void BleBuildDeviceName(char *out)
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{
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static const char hex[] = "0123456789ABCDEF";
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const uint32_t *uid = (const uint32_t *)AT32_UID_BASE;
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uint32_t tail = uid[2] & 0x00FFFFFFu;
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unsigned i;
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out[0] = 'P';
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out[1] = 'H';
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out[2] = 'O';
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out[3] = 'N';
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out[4] = '_';
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for (i = 0; i < 6; i++)
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out[5 + i] = hex[(tail >> (4 * (5 - i))) & 0xFu];
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out[BLE_DEVICE_NAME_LEN] = '\0';
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}
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