forked from mirrors/qmk_firmware
fix up arm audio implementation
This commit is contained in:
Jack Humbert
parent
5836d1a06a
commit
690a08cbbb
1 changed files with 178 additions and 45 deletions
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@ -77,23 +77,48 @@ bool glissando = true;
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#endif
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float startup_song[][2] = STARTUP_SONG;
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static void gpt_cb6(GPTDriver *gptp);
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static void gpt_cb7(GPTDriver *gptp);
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static void gpt_cb8(GPTDriver *gptp);
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#define DAC_BUFFER_SIZE 360
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#define START_CHANNEL_1() gptStart(&GPTD6, &gpt6cfg1); \
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gptStartContinuous(&GPTD6, 2U)
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#define START_CHANNEL_2() gptStart(&GPTD7, &gpt7cfg1); \
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gptStartContinuous(&GPTD7, 2U)
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#define STOP_CHANNEL_1() gptStopTimer(&GPTD6)
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#define STOP_CHANNEL_2() gptStopTimer(&GPTD7)
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#define RESTART_CHANNEL_1() STOP_CHANNEL_1(); \
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START_CHANNEL_1()
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#define RESTART_CHANNEL_2() STOP_CHANNEL_1(); \
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START_CHANNEL_1()
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#define UPDATE_CHANNEL_1_FREQ(freq) gpt6cfg1.frequency = freq * DAC_BUFFER_SIZE; \
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RESTART_CHANNEL_1()
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#define UPDATE_CHANNEL_2_FREQ(freq) gpt7cfg1.frequency = freq * DAC_BUFFER_SIZE; \
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RESTART_CHANNEL_2()
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#define GET_CHANNEL_1_FREQ gpt6cfg1.frequency
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#define GET_CHANNEL_2_FREQ gpt7cfg1.frequency
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/*
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* GPT6 configuration.
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*/
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// static const GPTConfig gpt6cfg1 = {
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// .frequency = 1000000U,
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// .callback = NULL,
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// .cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */
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// .dier = 0U
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// };
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GPTConfig gpt6cfg1 = {
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.frequency = 440,
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.callback = gpt_cb6,
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.frequency = 440U*DAC_BUFFER_SIZE,
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.callback = NULL,
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.cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */
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.dier = 0U
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};
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GPTConfig gpt7cfg1 = {
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.frequency = 440,
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.callback = gpt_cb7,
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.frequency = 440U*DAC_BUFFER_SIZE,
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.callback = NULL,
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.cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */
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.dier = 0U
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};
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@ -105,15 +130,122 @@ GPTConfig gpt8cfg1 = {
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.dier = 0U
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};
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static void gpt_cb6(GPTDriver *gptp) {
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palTogglePad(GPIOA, 4);
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/*
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* DAC test buffer (sine wave).
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*/
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// static const dacsample_t dac_buffer[DAC_BUFFER_SIZE] = {
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// 2047, 2082, 2118, 2154, 2189, 2225, 2260, 2296, 2331, 2367, 2402, 2437,
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// 2472, 2507, 2542, 2576, 2611, 2645, 2679, 2713, 2747, 2780, 2813, 2846,
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// 2879, 2912, 2944, 2976, 3008, 3039, 3070, 3101, 3131, 3161, 3191, 3221,
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// 3250, 3278, 3307, 3335, 3362, 3389, 3416, 3443, 3468, 3494, 3519, 3544,
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// 3568, 3591, 3615, 3637, 3660, 3681, 3703, 3723, 3744, 3763, 3782, 3801,
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// 3819, 3837, 3854, 3870, 3886, 3902, 3917, 3931, 3944, 3958, 3970, 3982,
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// 3993, 4004, 4014, 4024, 4033, 4041, 4049, 4056, 4062, 4068, 4074, 4078,
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// 4082, 4086, 4089, 4091, 4092, 4093, 4094, 4093, 4092, 4091, 4089, 4086,
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// 4082, 4078, 4074, 4068, 4062, 4056, 4049, 4041, 4033, 4024, 4014, 4004,
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// 3993, 3982, 3970, 3958, 3944, 3931, 3917, 3902, 3886, 3870, 3854, 3837,
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// 3819, 3801, 3782, 3763, 3744, 3723, 3703, 3681, 3660, 3637, 3615, 3591,
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// 3568, 3544, 3519, 3494, 3468, 3443, 3416, 3389, 3362, 3335, 3307, 3278,
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// 3250, 3221, 3191, 3161, 3131, 3101, 3070, 3039, 3008, 2976, 2944, 2912,
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// 2879, 2846, 2813, 2780, 2747, 2713, 2679, 2645, 2611, 2576, 2542, 2507,
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// 2472, 2437, 2402, 2367, 2331, 2296, 2260, 2225, 2189, 2154, 2118, 2082,
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// 2047, 2012, 1976, 1940, 1905, 1869, 1834, 1798, 1763, 1727, 1692, 1657,
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// 1622, 1587, 1552, 1518, 1483, 1449, 1415, 1381, 1347, 1314, 1281, 1248,
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// 1215, 1182, 1150, 1118, 1086, 1055, 1024, 993, 963, 933, 903, 873,
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// 844, 816, 787, 759, 732, 705, 678, 651, 626, 600, 575, 550,
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// 526, 503, 479, 457, 434, 413, 391, 371, 350, 331, 312, 293,
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// 275, 257, 240, 224, 208, 192, 177, 163, 150, 136, 124, 112,
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// 101, 90, 80, 70, 61, 53, 45, 38, 32, 26, 20, 16,
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// 12, 8, 5, 3, 2, 1, 0, 1, 2, 3, 5, 8,
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// 12, 16, 20, 26, 32, 38, 45, 53, 61, 70, 80, 90,
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// 101, 112, 124, 136, 150, 163, 177, 192, 208, 224, 240, 257,
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// 275, 293, 312, 331, 350, 371, 391, 413, 434, 457, 479, 503,
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// 526, 550, 575, 600, 626, 651, 678, 705, 732, 759, 787, 816,
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// 844, 873, 903, 933, 963, 993, 1024, 1055, 1086, 1118, 1150, 1182,
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// 1215, 1248, 1281, 1314, 1347, 1381, 1415, 1449, 1483, 1518, 1552, 1587,
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// 1622, 1657, 1692, 1727, 1763, 1798, 1834, 1869, 1905, 1940, 1976, 2012
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// };
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// squarewave
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static const dacsample_t dac_buffer[DAC_BUFFER_SIZE] = {
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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};
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/*
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* DAC streaming callback.
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*/
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size_t nx = 0, ny = 0, nz = 0;
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static void end_cb1(DACDriver *dacp, const dacsample_t *buffer, size_t n) {
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(void)dacp;
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nz++;
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if (dac_buffer == buffer) {
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nx += n;
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}
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else {
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ny += n;
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}
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if ((nz % 1000) == 0) {
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// palTogglePad(GPIOD, GPIOD_LED3);
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}
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}
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/*
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* DAC error callback.
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*/
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static void error_cb1(DACDriver *dacp, dacerror_t err) {
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static void gpt_cb7(GPTDriver *gptp) {
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palTogglePad(GPIOA, 5);
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(void)dacp;
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(void)err;
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chSysHalt("DAC failure");
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}
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static const DACConfig dac1cfg1 = {
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.init = 2047U,
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.datamode = DAC_DHRM_12BIT_RIGHT
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};
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static const DACConversionGroup dacgrpcfg1 = {
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.num_channels = 1U,
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.end_cb = end_cb1,
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.error_cb = error_cb1,
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.trigger = DAC_TRG(0)
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};
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void audio_init()
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{
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@ -128,8 +260,27 @@ void audio_init()
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// audio_config.raw = eeconfig_read_audio();
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audio_config.enable = true;
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palSetPadMode(GPIOA, 4, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPadMode(GPIOA, 5, PAL_MODE_OUTPUT_PUSHPULL);
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/*
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* Starting DAC1 driver, setting up the output pin as analog as suggested
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* by the Reference Manual.
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*/
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palSetPadMode(GPIOA, 4, PAL_MODE_INPUT_ANALOG);
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palSetPadMode(GPIOA, 5, PAL_MODE_INPUT_ANALOG);
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dacStart(&DACD1, &dac1cfg1);
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/*
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* Starting GPT6 driver, it is used for triggering the DAC.
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*/
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START_CHANNEL_1();
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START_CHANNEL_2();
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/*
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* Starting a continuous conversion.
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*/
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dacStartConversion(&DACD1, &dacgrpcfg1,
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(dacsample_t *)dac_buffer, DAC_BUFFER_SIZE);
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// gptStartContinuous(&GPTD6, 2U);
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audio_initialized = true;
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@ -193,8 +344,8 @@ void stop_note(float freq)
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voice_place = 0;
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}
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if (voices == 0) {
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gptStopTimer(&GPTD6);
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gptStopTimer(&GPTD7);
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STOP_CHANNEL_1();
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STOP_CHANNEL_2();
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gptStopTimer(&GPTD8);
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frequency = 0;
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frequency_alt = 0;
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@ -224,20 +375,6 @@ float vibrato(float average_freq) {
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#endif
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static void restart_gpt6(void) {
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// gptStopTimer(&GPTD6);
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gptStart(&GPTD6, &gpt6cfg1);
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gptStartContinuous(&GPTD6, 2U);
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}
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static void restart_gpt7(void) {
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// gptStopTimer(&GPTD7);
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gptStart(&GPTD7, &gpt7cfg1);
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gptStartContinuous(&GPTD7, 2U);
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}
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static void gpt_cb8(GPTDriver *gptp) {
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float freq;
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@ -280,13 +417,12 @@ static void gpt_cb8(GPTDriver *gptp) {
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freq_alt = 30.52;
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}
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if (gpt6cfg1.frequency != (uint16_t)freq_alt) {
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gpt6cfg1.frequency = freq_alt;
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restart_gpt6();
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if (GET_CHANNEL_1_FREQ != (uint16_t)freq_alt) {
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UPDATE_CHANNEL_1_FREQ(freq_alt);
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}
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//note_timbre;
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} else {
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// gptStopTimer(&GPTD6);
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STOP_CHANNEL_1();
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}
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if (polyphony_rate > 0) {
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@ -342,9 +478,8 @@ static void gpt_cb8(GPTDriver *gptp) {
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}
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if (gpt7cfg1.frequency != (uint16_t)freq) {
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gpt7cfg1.frequency = freq;
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restart_gpt7();
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if (GET_CHANNEL_2_FREQ != (uint16_t)freq) {
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UPDATE_CHANNEL_2_FREQ(freq);
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}
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//note_timbre;
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} else {
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@ -370,11 +505,9 @@ static void gpt_cb8(GPTDriver *gptp) {
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freq = voice_envelope(freq);
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if (gpt6cfg1.frequency != (uint16_t)freq) {
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gpt6cfg1.frequency = freq;
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restart_gpt6();
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gpt7cfg1.frequency = freq;
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restart_gpt7();
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if (GET_CHANNEL_1_FREQ != (uint16_t)freq) {
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UPDATE_CHANNEL_1_FREQ(freq);
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UPDATE_CHANNEL_2_FREQ(freq);
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}
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//note_timbre;
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} else {
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@ -384,7 +517,7 @@ static void gpt_cb8(GPTDriver *gptp) {
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note_position++;
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bool end_of_note = false;
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if (gpt6cfg1.frequency > 0) {
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if (GET_CHANNEL_1_FREQ > 0) {
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if (!note_resting)
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end_of_note = (note_position >= (note_length*16 - 1));
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else
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@ -399,8 +532,8 @@ static void gpt_cb8(GPTDriver *gptp) {
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if (notes_repeat) {
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current_note = 0;
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} else {
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gptStopTimer(&GPTD6);
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gptStopTimer(&GPTD7);
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STOP_CHANNEL_1();
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STOP_CHANNEL_2();
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// gptStopTimer(&GPTD8);
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playing_notes = false;
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return;
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@ -492,8 +625,8 @@ void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat)
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gptStart(&GPTD8, &gpt8cfg1);
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gptStartContinuous(&GPTD8, 2U);
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restart_gpt6();
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restart_gpt7();
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RESTART_CHANNEL_1();
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RESTART_CHANNEL_2();
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}
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}
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