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insertion detection

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This commit is contained in:
Steven Dan
2026-05-12 12:22:41 +08:00
parent 42795061fd
commit daa9875162
1 changed files with 127 additions and 16 deletions
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143
sw_usb_audio/app_usb_aud_fosi_c1/src/extensions/audiohw.xc
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@@ -116,6 +116,14 @@ timer tm;
// 改动原因：与 FORMAT_DELAY(30000000) 相同时间基准（get_reference_time 滴答），用户停止调节 300ms 后再写 Flash，减少磨损并满足需求。
#define C1_DAC_VOL_SAVE_DELAY (30000000)
// 改动原因：XS1_PORT_4E 耳机/MIC 插入检测位定义——bit2 高=耳机插入；bit3 低=MIC 插入、高=拔出（与硬件原理图一致）。
#define C1_HP_DETECT_MASK 0x04u
#define C1_MIC_DETECT_MASK 0x08u
// 改动原因：插入后延迟与 EQ_SYNC_DELAY 相同 tick（get_reference_time），固定 500ms 再恢复 DAC/ADC 硬件音量，减轻插拔 pop。
#define C1_JACK_RESTORE_DELAY EQ_SYNC_DELAY
// 改动原因：TIMER_PERIOD≈20ms，连续 3 次采样一致再认定电平稳定，避免检测脚抖动误触发。
#define C1_JACK_DEBOUNCE_SAMPLES 3u
// 改动原因：判断 Flash 读出字节是否为合法 NAU88C22 DAC 音量码：0x00 表示按键规则下的 mute，0x4B~0xCF 为正常衰减范围。
static unsigned c1_saved_dac_vol_is_valid(unsigned char v)
{
@@ -137,9 +145,9 @@ static inline unsigned c1_mode_to_led_color_idx(unsigned mode_value)
#define NAU88L21_PGA_GAIN_REG_MAX_VALUE 0x25+1 // 0x25=37, 36dB. +1 is for extra 1.5dB digital gain
#define NAU88L21_PGA_GAIN_REG_DEFAULT_VALUE (NAU88L21_PGA_GAIN_REG_MAX_VALUE)
// CODEC reset line
on tile[0]: out port p_mclk_sel = XS1_PORT_4E;
on tile[0]: out port p_gpio = XS1_PORT_4F;
// 改动原因：4E 为耳机/MIC 检测输入（读 bit2/bit3），原先声明为 out 无法采样；改为 in port 与硬件方向一致。
on tile[0]: in port p_mic_phone_detect = XS1_PORT_4E;
on tile[0]: out port p_gpio = XS1_PORT_4F;
#define LED_OFF 0x7F // 修改：清除最高位，只保留低7位
#define LED_RED 0b01011111 // 修改：清除最高位，只保留低7位
@@ -391,6 +399,28 @@ void AudioHwRemote2(streaming chanend c, client interface i2c_master_if i2c, cli
// 改动原因：记录上次用于防抖持久化的 g_dac_vol；deadline=0 表示当前无待写入 Flash 的定时保存任务。
unsigned dac_vol_persist_snapshot = 0;
unsigned dac_vol_persist_deadline = 0;
// 改动原因：耳机拔出强制 DAC 寄存器静音（不改 g_dac_vol，类比 phaten 的 dac_det_muted）；插入后延时再写回逻辑音量。
unsigned hp_jack_dac_mute = 0;
unsigned hp_restore_deadline = 0;
unsigned hp_stable_prev = 0xFFFFFFFFu;
unsigned hp_db_cnt = 0;
unsigned hp_cand = 0xFFFFFFFFu;
unsigned hp_stable = 0;
// 改动原因：记录上次写入 0x0034 时的“插拔强制哑音”组合态（耳机拔出 | MIC 拔出 | MIC 插入），任一路变化都要重推寄存器。
unsigned old_dac_jack_force_mute = 0;
// 改动原因：MIC 拔出瞬间哑 DAC（参考 phaten MIC_DET_DAC_MUTE），拔出边沿起 500ms 后恢复 DAC 寄存器；不改 g_dac_vol。
unsigned mic_pull_dac_mute = 0;
unsigned mic_pull_dac_deadline = 0;
// 改动原因：MIC 插入（去抖稳定后）立即哑 DAC 防 pop，稳定插入起再计 500ms 后恢复 DAC；拔出时清零；不改 g_dac_vol。
unsigned mic_insert_dac_mute = 0;
unsigned mic_insert_dac_deadline = 0;
// 改动原因：MIC 拔出强制 ADC mute；插入 500ms 后按 g_mute_switch+g_adc_vol 恢复，不修改 g_mute_switch，故 mic mute LED 不受插拔影响。
unsigned mic_jack_adc_mute = 0;
unsigned mic_restore_deadline = 0;
unsigned mic_stable_prev = 0xFFFFFFFFu;
unsigned mic_db_cnt = 0;
unsigned mic_cand = 0xFFFFFFFFu;
unsigned mic_stable = 0;
// 改动原因：按DS1按键状态机思路保存每个按键按下时长；mode/mic 仍用短/长按窗口区分，音量键仅用于释放时短按去抖（不支持长按连调）。
unsigned mode_press_ticks = 0;
unsigned vol_down_press_ticks = 0;
@@ -522,6 +552,88 @@ void AudioHwRemote2(streaming chanend c, client interface i2c_master_if i2c, cli
}
}
}
// 改动原因：耳机/MIC 插拔检测——写 NAU88C22（0x0034 / mic_volume）；不修改 g_dac_vol、g_mute_switch；MIC 插/拔均对 DAC 做瞬时静音+500ms 恢复防 pop。
{
unsigned raw_det;
p_mic_phone_detect :> raw_det;
unsigned hp_now = ((raw_det & C1_HP_DETECT_MASK) != 0) ? 1u : 0u;
unsigned mic_now = ((raw_det & C1_MIC_DETECT_MASK) == 0) ? 1u : 0u;
if (hp_cand == 0xFFFFFFFFu) {
hp_cand = hp_now;
hp_stable = hp_now;
hp_db_cnt = 0;
} else if (hp_now == hp_cand) {
hp_db_cnt++;
if (hp_db_cnt >= C1_JACK_DEBOUNCE_SAMPLES) {
hp_stable = hp_cand;
}
} else {
hp_cand = hp_now;
hp_db_cnt = 1;
}
if (mic_cand == 0xFFFFFFFFu) {
mic_cand = mic_now;
mic_stable = mic_now;
mic_db_cnt = 0;
} else if (mic_now == mic_cand) {
mic_db_cnt++;
if (mic_db_cnt >= C1_JACK_DEBOUNCE_SAMPLES) {
mic_stable = mic_cand;
}
} else {
mic_cand = mic_now;
mic_db_cnt = 1;
}
if (hp_stable_prev == 0xFFFFFFFFu) {
hp_stable_prev = hp_stable;
mic_stable_prev = mic_stable;
} else {
if (!hp_stable) {
hp_jack_dac_mute = 1;
hp_restore_deadline = 0;
} else {
if (hp_stable && !hp_stable_prev) {
hp_restore_deadline = now + C1_JACK_RESTORE_DELAY;
}
if (hp_jack_dac_mute && hp_restore_deadline != 0 && timeafter(now, hp_restore_deadline)) {
hp_jack_dac_mute = 0;
}
}
if (!mic_stable) {
mic_jack_adc_mute = 1;
mic_restore_deadline = 0;
mic_insert_dac_mute = 0;
mic_insert_dac_deadline = 0;
// 改动原因：MIC 拔出边沿立即拉 DAC 寄存器静音，减轻瞬态 pop；满 500ms（相对拔出时刻）后 mic_pull_dac_mute 清零恢复 g_dac_vol 对应音量。
if (mic_stable_prev) {
mic_pull_dac_mute = 1;
mic_pull_dac_deadline = now + C1_JACK_RESTORE_DELAY;
}
if (mic_pull_dac_deadline != 0 && timeafter(now, mic_pull_dac_deadline)) {
mic_pull_dac_mute = 0;
mic_pull_dac_deadline = 0;
}
} else {
mic_pull_dac_mute = 0;
mic_pull_dac_deadline = 0;
// 改动原因：去抖后由拔出→插入的边沿：立刻 mic_insert_dac_mute 哑 DAC；自该稳定插入时刻起 500ms 后清除以恢复 g_dac_vol（与 ADC 的 mic_restore 同源边沿，时间基准一致）。
if (mic_stable && !mic_stable_prev) {
mic_restore_deadline = now + C1_JACK_RESTORE_DELAY;
mic_insert_dac_mute = 1;
mic_insert_dac_deadline = now + C1_JACK_RESTORE_DELAY;
}
if (mic_jack_adc_mute && mic_restore_deadline != 0 && timeafter(now, mic_restore_deadline)) {
mic_jack_adc_mute = 0;
}
if (mic_insert_dac_mute && mic_insert_dac_deadline != 0 && timeafter(now, mic_insert_dac_deadline)) {
mic_insert_dac_mute = 0;
mic_insert_dac_deadline = 0;
}
}
hp_stable_prev = hp_stable;
mic_stable_prev = mic_stable;
}
}
GET_SHARED_GLOBAL(dac_vol, g_dac_vol);
GET_SHARED_GLOBAL(adc_vol, g_adc_vol);
unsigned mute_switch;
@@ -532,16 +644,20 @@ void AudioHwRemote2(streaming chanend c, client interface i2c_master_if i2c, cli
i_c1_led_ctrl.set_mic_mute_state(mute_switch);
last_mute_switch_for_led = mute_switch;
}
// 改动原因：静音时(g_mute_switch==1) ADC 音量写 0，未静音时写 g_adc_vol；g_mute_switch 变化时也需更新
unsigned effective_adc_vol = (mute_switch != 0) ? 0 : adc_vol;
// 改动原因：MIC 物理拔出时 mic_jack_adc_mute 强制 ADC 静音；插入 500ms 内仍保持静音，之后恢复 g_mute_switch 与 g_adc_vol 决定的电平（不触碰 LED 条件 mute_switch）。
unsigned effective_adc_vol = mic_jack_adc_mute ? 0 : ((mute_switch != 0) ? 0 : adc_vol);
if (old_dac_vol != dac_vol || old_type != audio_type)
// 改动原因：耳机拔出或 MIC 插/拔防 pop 时写 C1_DAC_MUTE（不改 g_dac_vol）；各事件满 500ms 或互斥清除后按 g_dac_vol 写回 0x0034。
{
old_dac_vol = dac_vol;
// 改动原因：实体按键、HID和UART都会更新g_dac_vol；这里统一把寄存器值写入codec，保证状态变化真正生效。
NAU88C22_REGWRITE(0x0034, ((dac_vol & 0xff) << 8) | (dac_vol & 0xff), i2c);
SET_SHARED_GLOBAL(g_old_audio_type, audio_type);
debug_printf("set old_dac_vol %d audio_type %d \n", old_dac_vol, audio_type);
unsigned dac_jack_force_mute = hp_jack_dac_mute | mic_pull_dac_mute | mic_insert_dac_mute;
unsigned dac_reg = dac_jack_force_mute ? C1_DAC_MUTE : (dac_vol & 0xff);
if (old_dac_vol != dac_vol || old_type != audio_type || old_dac_jack_force_mute != dac_jack_force_mute) {
old_dac_vol = dac_vol;
old_dac_jack_force_mute = dac_jack_force_mute;
NAU88C22_REGWRITE(0x0034, ((dac_reg & 0xff) << 8) | (dac_reg & 0xff), i2c);
SET_SHARED_GLOBAL(g_old_audio_type, audio_type);
debug_printf("set dac_reg 0x%x (hp=%d mic_pull=%d mic_ins=%d) audio_type %d \n", dac_reg, hp_jack_dac_mute, mic_pull_dac_mute, mic_insert_dac_mute, audio_type);
}
}
// 改动原因：音量键/HID/UART 任一修改 g_dac_vol 后不立即写 Flash；仅当读回值相对 persist_snapshot 稳定满 300ms 再 save_value，满足防抖与关机保存。
@@ -1244,7 +1360,6 @@ void AudioHwInit()
{
debug_printf("AudioHwInit\n");
delay_milliseconds(100);
p_mclk_sel <: 0xf;
if((XUA_SYNCMODE == XUA_SYNCMODE_SYNC || XUA_SPDIF_RX_EN || XUA_ADAT_RX_EN) && XUA_USE_SW_PLL)
{
@@ -1255,12 +1370,10 @@ void AudioHwInit()
if (DEFAULT_FREQ % 22050 == 0)
{
sw_pll_fixed_clock(MCLK_441);
//p_mclk_sel <: 0x8;
}
else
{
sw_pll_fixed_clock(MCLK_48);
//p_mclk_sel <: 0x4;
}
}
@@ -1516,12 +1629,10 @@ void AudioHwConfig(unsigned samFreq, unsigned mClk, unsigned dsdMode,
if (samFreq % 22050 == 0)
{
sw_pll_fixed_clock(MCLK_441);
//p_mclk_sel <: 0x8;
}
else
{
sw_pll_fixed_clock(MCLK_48);
//p_mclk_sel <: 0x4;
}
}