nick/DS5Dongle-OLED-Edition-steam-machine
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使用ds5原始的音量调节范围

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This commit is contained in:
awalol
2026-05-07 22:28:29 +08:00
parent 33c44907b6
commit 8bb0c816df
4 changed files with 33 additions and 12 deletions
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src/usb.cpp
+26 -7
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@@ -7,7 +7,7 @@
#include "config.h"
uint8_t mute[2]; // 0: SPEAKER(0x02) 1: MIC(0x05)
float volume[2] = {1.0f}; // 0: SPEAKER(0x02) 1: MIC(0x05)
float volume[2] = {-100.0f,0.0f}; // 0: SPEAKER(0x02) 1: MIC(0x05)
#define UAC1_ENTITY_SPK_FEATURE_UNIT 0x02
#define UAC1_ENTITY_MIC_FEATURE_UNIT 0x05
@@ -66,7 +66,7 @@ static bool audio10_set_req_entity(tusb_control_request_t const *p_request, uint
// Only 1st form is supported
TU_VERIFY(p_request->wLength == 2);
volume[index] = static_cast<float>(tu_unaligned_read16(pBuff)) / 256;
volume[index] = static_cast<float>(*reinterpret_cast<int16_t const *>(pBuff)) / 256;
if (entityID == UAC1_ENTITY_SPK_FEATURE_UNIT) {
auto config = get_config();
config.speaker_volume = volume[index];
@@ -118,21 +118,40 @@ static bool audio10_get_req_entity(uint8_t rhport, tusb_control_request_t const
case AUDIO10_CS_REQ_GET_MIN:
TU_LOG2(" Get Volume min of entity: %u\r\n", entityID); {
int16_t min = 1; // 1 dB
min = min * 256; // convert to 1/256 dB units
uint8_t min[2];
if (entityID == UAC1_ENTITY_SPK_FEATURE_UNIT) {
min[0] = 0x00;
min[1] = 0x9c;
}else {
min[0] = 0x00;
min[1] = 0x00;
}
return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, &min, sizeof(min));
}
case AUDIO10_CS_REQ_GET_MAX:
TU_LOG2(" Get Volume max of entity: %u\r\n", entityID); {
int16_t max = 2; // 2 dB
max = max * 256; // convert to 1/256 dB units
uint8_t max[2];
if (entityID == UAC1_ENTITY_SPK_FEATURE_UNIT) {
max[0] = 0x00;
max[1] = 0x00;
}else {
max[0] = 0x00;
max[1] = 0x30;
}
return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, &max, sizeof(max));
}
case AUDIO10_CS_REQ_GET_RES:
TU_LOG2(" Get Volume res of entity: %u\r\n", entityID); {
int16_t res = 0.1 * 256; // 0.1 dB
uint8_t res[2];
if (entityID == UAC1_ENTITY_SPK_FEATURE_UNIT) {
res[0] = 0x00;
res[1] = 0x01;
}else {
res[0] = 0x7a;
res[1] = 0x00;
}
return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, &res, sizeof(res));
}
// Unknown/Unsupported control