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Add mouse support to ADB

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Adding the makefile options ADB_MOUSE_ENABLE and ADB_MOUSE_ACCMAX.
Might have gone overboard with comments, and tried but failed at not
adding more than necessary outside the converter/adb_usb/ folder.
This commit is contained in:
Mekaniserad Apelsin 2015-04-26 08:08:54 +02:00
parent 55fc97f957
commit 7780fd1c01
8 changed files with 114 additions and 1 deletions
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24
tmk_core/protocol/adb.c
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@ -60,6 +60,7 @@ static inline void place_bit1(void);
static inline void send_byte(uint8_t data);
static inline uint16_t wait_data_lo(uint16_t us);
static inline uint16_t wait_data_hi(uint16_t us);
static inline uint16_t adb_host_dev_recv(uint8_t device);
void adb_host_init(void)
@ -121,12 +122,33 @@ bool adb_host_psw(void)
//
// [from Apple IIgs Hardware Reference Second Edition]
enum {
ADDR_KEYB = 0x20,
ADDR_MOUSE = 0x30
};
uint16_t adb_host_kbd_recv(void)
{
return adb_host_dev_recv(ADDR_KEYB);
}
#ifdef ADB_MOUSE_ENABLE
void adb_mouse_init(void) {
return;
}
uint16_t adb_host_mouse_recv(void)
{
return adb_host_dev_recv(ADDR_MOUSE);
}
#endif
static inline uint16_t adb_host_dev_recv(uint8_t device)
{
uint16_t data = 0;
cli();
attention();
send_byte(0x2C); // Addr:Keyboard(0010), Cmd:Talk(11), Register0(00)
send_byte(device|0x0C); // Addr:Keyboard(0010)/Mouse(0011), Cmd:Talk(11), Register0(00)
place_bit0(); // Stopbit(0)
if (!wait_data_hi(500)) { // Service Request(310us Adjustable Keyboard): just ignored
sei();