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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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4
converter/adb_usb/Makefile
View file

@ -122,6 +122,10 @@ CONSOLE_ENABLE = yes # Console for debug(+400)
COMMAND_ENABLE = yes # Commands for debug and configuration
#SLEEP_LED_ENABLE = yes # Breathing sleep LED during USB suspend
#NKRO_ENABLE = yes # USB Nkey Rollover
ADB_MOUSE_ENABLE = yes
# ADB Mice need acceleration for todays much bigger screens.
OPT_DEFS += -DADB_MOUSE_MAXACC=8
# Optimize size but this may cause error "relocation truncated to fit"

4
converter/adb_usb/Makefile.pjrc
View file

@ -57,6 +57,10 @@ CONSOLE_ENABLE = yes # Console for debug
COMMAND_ENABLE = yes # Commands for debug and configuration
#SLEEP_LED_ENABLE = yes # Breathing sleep LED during USB suspend
#NKRO_ENABLE = yes # USB Nkey Rollover(+500)
ADB_MOUSE_ENABLE = yes
# ADB Mice need acceleration for todays much bigger screens.
OPT_DEFS += -DADB_MOUSE_MAXACC=8
# Search Path

61
converter/adb_usb/matrix.c
View file

@ -27,6 +27,8 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "debug.h"
#include "adb.h"
#include "matrix.h"
#include "report.h"
#include "host.h"
#if (MATRIX_COLS > 16)
@ -38,6 +40,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
static bool is_modified = false;
static report_mouse_t mouse_report = {};
// matrix state buffer(1:on, 0:off)
#if (MATRIX_COLS <= 8)
@ -86,6 +89,64 @@ void matrix_init(void)
return;
}
#ifdef ADB_MOUSE_ENABLE
#ifdef MAX
#undef MAX
#endif
#define MAX(X, Y) ((X) > (Y) ? (X) : (Y))
void adb_mouse_task(void)
{
uint16_t codes;
int16_t x, y;
static int8_t mouseacc;
_delay_ms(12); // delay for preventing overload of poor ADB keyboard controller
codes = adb_host_mouse_recv();
// If nothing received reset mouse acceleration, and quit.
if (!codes) {
mouseacc = 1;
return;
};
// Bit sixteen is button.
if (~codes & (1 << 15))
mouse_report.buttons |= MOUSE_BTN1;
if (codes & (1 << 15))
mouse_report.buttons &= ~MOUSE_BTN1;
// lower seven bits are movement, as signed int_7.
// low byte is X-axis, high byte is Y.
y = (codes>>8 & 0x3F);
x = (codes>>0 & 0x3F);
// bit seven and fifteen is negative
// usb does not use int_8, but int_7 (measuring distance) with sign-bit.
if (codes & (1 << 6))
x = (x-0x40);
if (codes & (1 << 14))
y = (y-0x40);
// Accelerate mouse. (They weren't meant to be used on screens larger than 320x200).
x *= mouseacc;
y *= mouseacc;
// Cap our two bytes per axis to one byte.
// Easier with a MIN-function, but since -MAX(-a,-b) = MIN(a,b)...
// I.E. MIN(MAX(x,-127),127) = -MAX(-MAX(x, -127), -127) = MIN(-MIN(-x,127),127)
mouse_report.x = -MAX(-MAX(x, -127), -127);
mouse_report.y = -MAX(-MAX(y, -127), -127);
if (debug_mouse) {
print("adb_host_mouse_recv: "); print_bin16(codes); print("\n");
print("adb_mouse raw: [");
phex(mouseacc); print(" ");
phex(mouse_report.buttons); print("|");
print_decs(mouse_report.x); print(" ");
print_decs(mouse_report.y); print("]\n");
}
// Send result by usb.
host_mouse_send(&mouse_report);
// increase acceleration of mouse
mouseacc += ( mouseacc < ADB_MOUSE_MAXACC ? 1 : 0 );
return;
}
#endif
uint8_t matrix_scan(void)
{
/* extra_key is volatile and more convoluted than necessary because gcc refused