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Add basic support for the extended ADB mouse protocol.

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We now respond to the switch to device handler ID 4 and the register 1
read (as described by https://developer.apple.com/library/archive/technotes/hw/hw_01.html#Extended).

We don't yet use the extra precision bits in the register 0.
This commit is contained in:
Mihai Parparita 2023-12-15 16:04:27 -08:00
parent 0e0de638d4
commit ae0bb838bf
2 changed files with 18 additions and 2 deletions
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19
devices/common/adb/adbmouse.cpp
View File

@ -88,6 +88,22 @@ bool AdbMouse::get_register_0() {
return false; return false;
} }
bool AdbMouse::get_register_1() {
uint8_t* out_buf = this->host_obj->get_output_buf();
// Identifier
out_buf[0] = 'a';
out_buf[1] = 'p';
out_buf[2] = 'p';
out_buf[3] = 'l';
// Slightly higher resolution of 300 units per inch
out_buf[4] = 300 >> 8;
out_buf[5] = 300 & 0xFF;
out_buf[6] = 1; // mouse
out_buf[7] = 1; // 1 button
this->host_obj->set_output_count(8);
return true;
}
void AdbMouse::set_register_3() { void AdbMouse::set_register_3() {
if (this->host_obj->get_input_count() < 2) // ensure we got enough data if (this->host_obj->get_input_count() < 2) // ensure we got enough data
return; return;
@ -101,10 +117,9 @@ void AdbMouse::set_register_3() {
break; break;
case 1: case 1:
case 2: case 2:
case 4: // switch over to extended mouse protocol
this->dev_handler_id = in_data[1]; this->dev_handler_id = in_data[1];
break; break;
case 4: // extended mouse protocol isn't supported yet
break;
case 0xFE: // move to a new address if there was no collision case 0xFE: // move to a new address if there was no collision
if (!this->got_collision) { if (!this->got_collision) {
this->my_addr = in_data[0] & 0xF; this->my_addr = in_data[0] & 0xF;

1
devices/common/adb/adbmouse.h
View File

@ -45,6 +45,7 @@ public:
void event_handler(const MouseEvent& event); void event_handler(const MouseEvent& event);
bool get_register_0() override; bool get_register_0() override;
bool get_register_1() override;
void set_register_3() override; void set_register_3() override;
private: private: