summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authortmk <nobody@nowhere>2011-01-04 20:30:23 +0900
committertmk <nobody@nowhere>2011-01-04 20:30:23 +0900
commit7272c65d3d24187487e7d38e332401002f5f233b (patch)
treecd098c31eff384ce8d448c825620e55bb54e3df6
parent2a562a4191a5b9e88731efb5eabd921821f25f7e (diff)
add error handling to ps2_mouse
-rw-r--r--key_process.c15
-rw-r--r--ps2_mouse.c48
-rw-r--r--ps2_mouse.h5
3 files changed, 58 insertions, 10 deletions
diff --git a/key_process.c b/key_process.c
index f3b65d1014..e3bee02e3b 100644
--- a/key_process.c
+++ b/key_process.c
@@ -129,6 +129,7 @@ void proc_matrix(void) {
#ifdef PS2_MOUSE_ENABLE
print("1: ps2_mouse_init \n");
print("2: ps2_mouse_read \n");
+ print("3: ps2_mouse: on/off toggle \n");
#endif
_delay_ms(500);
print_enable = false;
@@ -154,6 +155,16 @@ void proc_matrix(void) {
phex(ps2_mouse_y); print("\n");
print("ps2_mouse_error_count: "); phex(ps2_mouse_error_count); print("\n");
break;
+ case KB_3:
+ ps2_mouse_enable = !ps2_mouse_enable;
+ print("ps2_mouse: ");
+ if (ps2_mouse_enable)
+ print("on");
+ else
+ print("off");
+ print("\n");
+ _delay_ms(500);
+ break;
#endif
case KB_B: // bootloader
usb_keyboard_clear_report();
@@ -299,9 +310,7 @@ void proc_matrix(void) {
#ifdef PS2_MOUSE_ENABLE
// ps2 mouse
- //if (ps2_mouse_error_count > 10) {
- ps2_mouse_read();
+ if (ps2_mouse_read() == 0)
ps2_mouse_usb_send();
- //}
#endif
}
diff --git a/ps2_mouse.c b/ps2_mouse.c
index e22ce6337c..7ff9882462 100644
--- a/ps2_mouse.c
+++ b/ps2_mouse.c
@@ -15,65 +15,91 @@
# define phex16(h)
#endif
+// disable when errors occur 255 times.
+#define ERROR_RETURN() do { \
+ if (ps2_error) { \
+ if (ps2_mouse_error_count < 255) { \
+ ps2_mouse_error_count++; \
+ } else { \
+ ps2_mouse_error_count = 0; \
+ ps2_mouse_enable = false; \
+ } \
+ return ps2_error; \
+ } \
+} while (0)
+
+
/*
TODO
----
-- Error handling
- Stream mode
- Tracpoint command support: needed
- Middle button + move = Wheel traslation
*/
+bool ps2_mouse_enable = true;
uint8_t ps2_mouse_x = 0;
uint8_t ps2_mouse_y = 0;
uint8_t ps2_mouse_btn = 0;
uint8_t ps2_mouse_error_count = 0;
+
static uint8_t ps2_mouse_btn_prev = 0;
-void ps2_mouse_init(void) {
+
+uint8_t ps2_mouse_init(void) {
uint8_t rcv;
+ if (!ps2_mouse_enable) return 1;
+
// Reset
rcv = ps2_host_send(0xFF);
print("ps2_mouse_init: send 0xFF: ");
phex(ps2_error); print("\n");
+ ERROR_RETURN();
// ACK
rcv = ps2_host_recv();
print("ps2_mouse_init: read ACK: ");
phex(rcv); phex(ps2_error); print("\n");
+ ERROR_RETURN();
// BAT takes some time
_delay_ms(100);
rcv = ps2_host_recv();
print("ps2_mouse_init: read BAT: ");
phex(rcv); phex(ps2_error); print("\n");
+ ERROR_RETURN();
// Device ID
rcv = ps2_host_recv();
print("ps2_mouse_init: read DevID: ");
phex(rcv); phex(ps2_error); print("\n");
+ ERROR_RETURN();
// Enable data reporting
ps2_host_send(0xF4);
print("ps2_mouse_init: send 0xF4: ");
phex(ps2_error); print("\n");
+ ERROR_RETURN();
// ACK
rcv = ps2_host_recv();
print("ps2_mouse_init: read ACK: ");
phex(rcv); phex(ps2_error); print("\n");
+ ERROR_RETURN();
// Set Remote mode
ps2_host_send(0xF0);
print("ps2_mouse_init: send 0xF0: ");
phex(ps2_error); print("\n");
+ ERROR_RETURN();
// ACK
rcv = ps2_host_recv();
print("ps2_mouse_init: read ACK: ");
phex(rcv); phex(ps2_error); print("\n");
+ ERROR_RETURN();
- if (ps2_error) ps2_mouse_error_count++;
+ return 0;
}
/*
@@ -84,18 +110,27 @@ Data format:
1 x: X movement(0-255)
2 y: Y movement(0-255)
*/
-void ps2_mouse_read(void)
+uint8_t ps2_mouse_read(void)
{
uint8_t rcv;
+ if (!ps2_mouse_enable) return 1;
+
ps2_host_send(0xEB);
+ ERROR_RETURN();
+
rcv=ps2_host_recv();
+ ERROR_RETURN();
+
if(rcv==0xFA) {
ps2_mouse_btn = ps2_host_recv();
+ ERROR_RETURN();
ps2_mouse_x = ps2_host_recv();
+ ERROR_RETURN();
ps2_mouse_y = ps2_host_recv();
+ ERROR_RETURN();
}
- if (ps2_error) ps2_mouse_error_count++;
+ return 0;
}
bool ps2_mouse_changed(void)
@@ -107,6 +142,9 @@ bool ps2_mouse_changed(void)
void ps2_mouse_usb_send(void)
{
static bool scrolled = false;
+
+ if (!ps2_mouse_enable) return;
+
if (ps2_mouse_changed()) {
int8_t x, y, v, h;
x = y = v = h = 0;
diff --git a/ps2_mouse.h b/ps2_mouse.h
index f590f3ad5d..6efdf45fbf 100644
--- a/ps2_mouse.h
+++ b/ps2_mouse.h
@@ -12,13 +12,14 @@
#define PS2_MOUSE_X_OVFLW 6
#define PS2_MOUSE_Y_OVFLW 7
+bool ps2_mouse_enable;
extern uint8_t ps2_mouse_x;
extern uint8_t ps2_mouse_y;
extern uint8_t ps2_mouse_btn;
extern uint8_t ps2_mouse_error_count;
-void ps2_mouse_init(void);
-void ps2_mouse_read(void);
+uint8_t ps2_mouse_init(void);
+uint8_t ps2_mouse_read(void);
bool ps2_mouse_changed(void);
void ps2_mouse_usb_send(void);
void ps2_mouse_print(void);