#include <stdbool.h>
#include<avr/io.h>
#include<util/delay.h>
-#include "ps2.h"
#include "ps2_mouse.h"
-#include "report.h"
#include "host.h"
#include "timer.h"
#include "print.h"
+#include "report.h"
#include "debug.h"
+#include "ps2.h"
-#ifndef PS2_INIT_DELAY
-#define PS2_INIT_DELAY 1000
-#endif
+/* ============================= MACROS ============================ */
+
+#define PS2_MOUSE_SEND(command, message) \
+do { \
+ uint8_t rcv = ps2_host_send(command); \
+ if (debug_mouse) { \
+ print((message)); \
+ xprintf(" command: %X, result: %X, error: %X \n", command, rcv, ps2_error); \
+ } \
+} while(0)
+
+#define PS2_MOUSE_SEND_SAFE(command, message) \
+do { \
+ if (PS2_MOUSE_STREAM_MODE == ps2_mouse_mode) { \
+ ps2_mouse_disable_data_reporting(); \
+ } \
+ PS2_MOUSE_SEND(command, message); \
+ if (PS2_MOUSE_STREAM_MODE == ps2_mouse_mode) { \
+ ps2_mouse_enable_data_reporting(); \
+ } \
+} while(0)
+
+#define PS2_MOUSE_SET_SAFE(command, value, message) \
+do { \
+ if (PS2_MOUSE_STREAM_MODE == ps2_mouse_mode) { \
+ ps2_mouse_disable_data_reporting(); \
+ } \
+ PS2_MOUSE_SEND(command, message); \
+ PS2_MOUSE_SEND(value, "Sending value"); \
+ if (PS2_MOUSE_STREAM_MODE == ps2_mouse_mode) { \
+ ps2_mouse_enable_data_reporting(); \
+ } \
+} while(0)
+
+#define PS2_MOUSE_RECEIVE(message) \
+do { \
+ uint8_t rcv = ps2_host_recv_response(); \
+ if (debug_mouse) { \
+ print((message)); \
+ xprintf(" result: %X, error: %X \n", rcv, ps2_error); \
+ } \
+} while(0)
+
+static enum ps2_mouse_mode_e {
+ PS2_MOUSE_STREAM_MODE,
+ PS2_MOUSE_REMOTE_MODE,
+} ps2_mouse_mode = PS2_MOUSE_STREAM_MODE;
static report_mouse_t mouse_report = {};
+static inline void ps2_mouse_print_report(report_mouse_t *mouse_report);
+static inline void ps2_mouse_convert_report_to_hid(report_mouse_t *mouse_report);
+static inline void ps2_mouse_clear_report(report_mouse_t *mouse_report);
+static inline void ps2_mouse_enable_scrolling(void);
+static inline void ps2_mouse_scroll_button_task(report_mouse_t *mouse_report);
-static void print_usb_data(void);
-
+/* ============================= IMPLEMENTATION ============================ */
/* supports only 3 button mouse at this time */
-uint8_t ps2_mouse_init(void) {
- uint8_t rcv;
-
+void ps2_mouse_init(void) {
ps2_host_init();
- _delay_ms(PS2_INIT_DELAY); // wait for powering up
+ _delay_ms(1000); // wait for powering up
- // send Reset
- rcv = ps2_host_send(0xFF);
- print("ps2_mouse_init: send Reset: ");
- phex(rcv); phex(ps2_error); print("\n");
+ PS2_MOUSE_SEND(PS2_MOUSE_RESET, "ps2_mouse_init: sending reset");
- // read completion code of BAT
- rcv = ps2_host_recv_response();
- print("ps2_mouse_init: read BAT: ");
- phex(rcv); phex(ps2_error); print("\n");
+ PS2_MOUSE_RECEIVE("ps2_mouse_init: read BAT");
+ PS2_MOUSE_RECEIVE("ps2_mouse_init: read DevID");
- // read Device ID
- rcv = ps2_host_recv_response();
- print("ps2_mouse_init: read DevID: ");
- phex(rcv); phex(ps2_error); print("\n");
+#ifdef PS2_MOUSE_USE_REMOTE_MODE
+ ps2_mouse_set_remote_mode();
+#else
+ ps2_mouse_enable_data_reporting();
+#endif
- // send Set Remote mode
- rcv = ps2_host_send(0xF0);
- print("ps2_mouse_init: send 0xF0: ");
- phex(rcv); phex(ps2_error); print("\n");
+#ifdef PS2_MOUSE_ENABLE_SCROLLING
+ ps2_mouse_enable_scrolling();
+#endif
- return 0;
+#ifdef PS2_MOUSE_USE_2_1_SCALING
+ ps2_mouse_set_scaling_2_1();
+#endif
}
-#define X_IS_NEG (mouse_report.buttons & (1<<PS2_MOUSE_X_SIGN))
-#define Y_IS_NEG (mouse_report.buttons & (1<<PS2_MOUSE_Y_SIGN))
-#define X_IS_OVF (mouse_report.buttons & (1<<PS2_MOUSE_X_OVFLW))
-#define Y_IS_OVF (mouse_report.buttons & (1<<PS2_MOUSE_Y_OVFLW))
-void ps2_mouse_task(void)
-{
- enum { SCROLL_NONE, SCROLL_BTN, SCROLL_SENT };
- static uint8_t scroll_state = SCROLL_NONE;
+void ps2_mouse_task(void) {
static uint8_t buttons_prev = 0;
/* receives packet from mouse */
rcv = ps2_host_send(PS2_MOUSE_READ_DATA);
if (rcv == PS2_ACK) {
mouse_report.buttons = ps2_host_recv_response();
- mouse_report.x = ps2_host_recv_response();
- mouse_report.y = ps2_host_recv_response();
+ mouse_report.x = ps2_host_recv_response() * PS2_MOUSE_X_MULTIPLIER;
+ mouse_report.y = ps2_host_recv_response() * PS2_MOUSE_Y_MULTIPLIER;
+#ifdef PS2_MOUSE_ENABLE_SCROLLING
+ mouse_report.v = -(ps2_host_recv_response() & PS2_MOUSE_SCROLL_MASK) * PS2_MOUSE_V_MULTIPLIER;
+#endif
} else {
if (debug_mouse) print("ps2_mouse: fail to get mouse packet\n");
return;
}
- xprintf("%ud ", timer_read());
- print("ps2_mouse raw: [");
- phex(mouse_report.buttons); print("|");
- print_hex8((uint8_t)mouse_report.x); print(" ");
- print_hex8((uint8_t)mouse_report.y); print("]\n");
/* if mouse moves or buttons state changes */
- if (mouse_report.x || mouse_report.y ||
+ if (mouse_report.x || mouse_report.y || mouse_report.v ||
((mouse_report.buttons ^ buttons_prev) & PS2_MOUSE_BTN_MASK)) {
-
-#ifdef PS2_MOUSE_DEBUG
- print("ps2_mouse raw: [");
- phex(mouse_report.buttons); print("|");
- print_hex8((uint8_t)mouse_report.x); print(" ");
- print_hex8((uint8_t)mouse_report.y); print("]\n");
+#ifdef PS2_MOUSE_DEBUG_RAW
+ // Used to debug raw ps2 bytes from mouse
+ ps2_mouse_print_report(&mouse_report);
#endif
-
buttons_prev = mouse_report.buttons;
+ ps2_mouse_convert_report_to_hid(&mouse_report);
+#if PS2_MOUSE_SCROLL_BTN_MASK
+ ps2_mouse_scroll_button_task(&mouse_report);
+#endif
+#ifdef PS2_MOUSE_DEBUG_HID
+ // Used to debug the bytes sent to the host
+ ps2_mouse_print_report(&mouse_report);
+#endif
+ host_mouse_send(&mouse_report);
+ }
+
+ ps2_mouse_clear_report(&mouse_report);
+}
- // PS/2 mouse data is '9-bit integer'(-256 to 255) which is comprised of sign-bit and 8-bit value.
- // bit: 8 7 ... 0
- // sign \8-bit/
- //
- // Meanwhile USB HID mouse indicates 8bit data(-127 to 127), note that -128 is not used.
- //
- // This converts PS/2 data into HID value. Use only -127-127 out of PS/2 9-bit.
- mouse_report.x = X_IS_NEG ?
- ((!X_IS_OVF && -127 <= mouse_report.x && mouse_report.x <= -1) ? mouse_report.x : -127) :
- ((!X_IS_OVF && 0 <= mouse_report.x && mouse_report.x <= 127) ? mouse_report.x : 127);
- mouse_report.y = Y_IS_NEG ?
- ((!Y_IS_OVF && -127 <= mouse_report.y && mouse_report.y <= -1) ? mouse_report.y : -127) :
- ((!Y_IS_OVF && 0 <= mouse_report.y && mouse_report.y <= 127) ? mouse_report.y : 127);
+void ps2_mouse_disable_data_reporting(void) {
+ PS2_MOUSE_SEND(PS2_MOUSE_DISABLE_DATA_REPORTING, "ps2 mouse disable data reporting");
+}
- // remove sign and overflow flags
- mouse_report.buttons &= PS2_MOUSE_BTN_MASK;
+void ps2_mouse_enable_data_reporting(void) {
+ PS2_MOUSE_SEND(PS2_MOUSE_ENABLE_DATA_REPORTING, "ps2 mouse enable data reporting");
+}
- // invert coordinate of y to conform to USB HID mouse
- mouse_report.y = -mouse_report.y;
+void ps2_mouse_set_remote_mode(void) {
+ PS2_MOUSE_SEND_SAFE(PS2_MOUSE_SET_REMOTE_MODE, "ps2 mouse set remote mode");
+ ps2_mouse_mode = PS2_MOUSE_REMOTE_MODE;
+}
+void ps2_mouse_set_stream_mode(void) {
+ PS2_MOUSE_SEND_SAFE(PS2_MOUSE_SET_STREAM_MODE, "ps2 mouse set stream mode");
+ ps2_mouse_mode = PS2_MOUSE_STREAM_MODE;
+}
-#if PS2_MOUSE_SCROLL_BTN_MASK
- static uint16_t scroll_button_time = 0;
- if ((mouse_report.buttons & (PS2_MOUSE_SCROLL_BTN_MASK)) == (PS2_MOUSE_SCROLL_BTN_MASK)) {
- if (scroll_state == SCROLL_NONE) {
- scroll_button_time = timer_read();
- scroll_state = SCROLL_BTN;
- }
-
- // doesn't send Scroll Button
- //mouse_report.buttons &= ~(PS2_MOUSE_SCROLL_BTN_MASK);
-
- if (mouse_report.x || mouse_report.y) {
- scroll_state = SCROLL_SENT;
-
- mouse_report.v = -mouse_report.y/(PS2_MOUSE_SCROLL_DIVISOR_V);
- mouse_report.h = mouse_report.x/(PS2_MOUSE_SCROLL_DIVISOR_H);
- mouse_report.x = 0;
- mouse_report.y = 0;
- //host_mouse_send(&mouse_report);
- }
- }
- else if ((mouse_report.buttons & (PS2_MOUSE_SCROLL_BTN_MASK)) == 0) {
-#if PS2_MOUSE_SCROLL_BTN_SEND
- if (scroll_state == SCROLL_BTN &&
- TIMER_DIFF_16(timer_read(), scroll_button_time) < PS2_MOUSE_SCROLL_BTN_SEND) {
- // send Scroll Button(down and up at once) when not scrolled
- mouse_report.buttons |= (PS2_MOUSE_SCROLL_BTN_MASK);
- host_mouse_send(&mouse_report);
- _delay_ms(100);
- mouse_report.buttons &= ~(PS2_MOUSE_SCROLL_BTN_MASK);
- }
-#endif
- scroll_state = SCROLL_NONE;
- }
- // doesn't send Scroll Button
- mouse_report.buttons &= ~(PS2_MOUSE_SCROLL_BTN_MASK);
-#endif
+void ps2_mouse_set_scaling_2_1(void) {
+ PS2_MOUSE_SEND_SAFE(PS2_MOUSE_SET_SCALING_2_1, "ps2 mouse set scaling 2:1");
+}
+void ps2_mouse_set_scaling_1_1(void) {
+ PS2_MOUSE_SEND_SAFE(PS2_MOUSE_SET_SCALING_1_1, "ps2 mouse set scaling 1:1");
+}
- host_mouse_send(&mouse_report);
- print_usb_data();
- }
- // clear report
- mouse_report.x = 0;
- mouse_report.y = 0;
- mouse_report.v = 0;
- mouse_report.h = 0;
- mouse_report.buttons = 0;
+void ps2_mouse_set_resolution(ps2_mouse_resolution_t resolution) {
+ PS2_MOUSE_SET_SAFE(PS2_MOUSE_SET_RESOLUTION, resolution, "ps2 mouse set resolution");
+}
+
+void ps2_mouse_set_sample_rate(ps2_mouse_sample_rate_t sample_rate) {
+ PS2_MOUSE_SET_SAFE(PS2_MOUSE_SET_SAMPLE_RATE, sample_rate, "ps2 mouse set sample rate");
+}
+
+/* ============================= HELPERS ============================ */
+
+#define X_IS_NEG (mouse_report->buttons & (1<<PS2_MOUSE_X_SIGN))
+#define Y_IS_NEG (mouse_report->buttons & (1<<PS2_MOUSE_Y_SIGN))
+#define X_IS_OVF (mouse_report->buttons & (1<<PS2_MOUSE_X_OVFLW))
+#define Y_IS_OVF (mouse_report->buttons & (1<<PS2_MOUSE_Y_OVFLW))
+static inline void ps2_mouse_convert_report_to_hid(report_mouse_t *mouse_report) {
+ // PS/2 mouse data is '9-bit integer'(-256 to 255) which is comprised of sign-bit and 8-bit value.
+ // bit: 8 7 ... 0
+ // sign \8-bit/
+ //
+ // Meanwhile USB HID mouse indicates 8bit data(-127 to 127), note that -128 is not used.
+ //
+ // This converts PS/2 data into HID value. Use only -127-127 out of PS/2 9-bit.
+ mouse_report->x = X_IS_NEG ?
+ ((!X_IS_OVF && -127 <= mouse_report->x && mouse_report->x <= -1) ? mouse_report->x : -127) :
+ ((!X_IS_OVF && 0 <= mouse_report->x && mouse_report->x <= 127) ? mouse_report->x : 127);
+ mouse_report->y = Y_IS_NEG ?
+ ((!Y_IS_OVF && -127 <= mouse_report->y && mouse_report->y <= -1) ? mouse_report->y : -127) :
+ ((!Y_IS_OVF && 0 <= mouse_report->y && mouse_report->y <= 127) ? mouse_report->y : 127);
+
+ // remove sign and overflow flags
+ mouse_report->buttons &= PS2_MOUSE_BTN_MASK;
+
+ // invert coordinate of y to conform to USB HID mouse
+ mouse_report->y = -mouse_report->y;
}
-static void print_usb_data(void)
-{
+static inline void ps2_mouse_clear_report(report_mouse_t *mouse_report) {
+ mouse_report->x = 0;
+ mouse_report->y = 0;
+ mouse_report->v = 0;
+ mouse_report->h = 0;
+ mouse_report->buttons = 0;
+}
+
+static inline void ps2_mouse_print_report(report_mouse_t *mouse_report) {
if (!debug_mouse) return;
- print("ps2_mouse usb: [");
- phex(mouse_report.buttons); print("|");
- print_hex8((uint8_t)mouse_report.x); print(" ");
- print_hex8((uint8_t)mouse_report.y); print(" ");
- print_hex8((uint8_t)mouse_report.v); print(" ");
- print_hex8((uint8_t)mouse_report.h); print("]\n");
+ print("ps2_mouse: [");
+ phex(mouse_report->buttons); print("|");
+ print_hex8((uint8_t)mouse_report->x); print(" ");
+ print_hex8((uint8_t)mouse_report->y); print(" ");
+ print_hex8((uint8_t)mouse_report->v); print(" ");
+ print_hex8((uint8_t)mouse_report->h); print("]\n");
+}
+
+static inline void ps2_mouse_enable_scrolling(void) {
+ PS2_MOUSE_SEND(PS2_MOUSE_SET_SAMPLE_RATE, "Initiaing scroll wheel enable: Set sample rate");
+ PS2_MOUSE_SEND(200, "200");
+ PS2_MOUSE_SEND(PS2_MOUSE_SET_SAMPLE_RATE, "Set sample rate");
+ PS2_MOUSE_SEND(100, "100");
+ PS2_MOUSE_SEND(PS2_MOUSE_SET_SAMPLE_RATE, "Set sample rate");
+ PS2_MOUSE_SEND(80, "80");
+ PS2_MOUSE_SEND(PS2_MOUSE_GET_DEVICE_ID, "Finished enabling scroll wheel");
+ _delay_ms(20);
}
+#define PRESS_SCROLL_BUTTONS mouse_report->buttons |= (PS2_MOUSE_SCROLL_BTN_MASK)
+#define RELEASE_SCROLL_BUTTONS mouse_report->buttons &= ~(PS2_MOUSE_SCROLL_BTN_MASK)
+static inline void ps2_mouse_scroll_button_task(report_mouse_t *mouse_report) {
+ static enum {
+ SCROLL_NONE,
+ SCROLL_BTN,
+ SCROLL_SENT,
+ } scroll_state = SCROLL_NONE;
+ static uint16_t scroll_button_time = 0;
+
+ if (PS2_MOUSE_SCROLL_BTN_MASK == (mouse_report->buttons & (PS2_MOUSE_SCROLL_BTN_MASK))) {
+ // All scroll buttons are pressed
+
+ if (scroll_state == SCROLL_NONE) {
+ scroll_button_time = timer_read();
+ scroll_state = SCROLL_BTN;
+ }
+
+ // If the mouse has moved, update the report to scroll instead of move the mouse
+ if (mouse_report->x || mouse_report->y) {
+ scroll_state = SCROLL_SENT;
+ mouse_report->v = -mouse_report->y/(PS2_MOUSE_SCROLL_DIVISOR_V);
+ mouse_report->h = mouse_report->x/(PS2_MOUSE_SCROLL_DIVISOR_H);
+ mouse_report->x = 0;
+ mouse_report->y = 0;
+ }
+ } else if (0 == (PS2_MOUSE_SCROLL_BTN_MASK & mouse_report->buttons)) {
+ // None of the scroll buttons are pressed
+
+#if PS2_MOUSE_SCROLL_BTN_SEND
+ if (scroll_state == SCROLL_BTN
+ && timer_elapsed(scroll_button_time) < PS2_MOUSE_SCROLL_BTN_SEND) {
+ PRESS_SCROLL_BUTTONS;
+ host_mouse_send(mouse_report);
+ _delay_ms(100);
+ RELEASE_SCROLL_BUTTONS;
+ }
+#endif
+ scroll_state = SCROLL_NONE;
+ }
-/* PS/2 Mouse Synopsis
- * http://www.computer-engineering.org/ps2mouse/
- *
- * Command:
- * 0xFF: Reset
- * 0xF6: Set Defaults Sampling; rate=100, resolution=4cnt/mm, scaling=1:1, reporting=disabled
- * 0xF5: Disable Data Reporting
- * 0xF4: Enable Data Reporting
- * 0xF3: Set Sample Rate
- * 0xF2: Get Device ID
- * 0xF0: Set Remote Mode
- * 0xEB: Read Data
- * 0xEA: Set Stream Mode
- * 0xE9: Status Request
- * 0xE8: Set Resolution
- * 0xE7: Set Scaling 2:1
- * 0xE6: Set Scaling 1:1
- *
- * Mode:
- * Stream Mode: devices sends the data when it changs its state
- * Remote Mode: host polls the data periodically
- *
- * This code uses Remote Mode and polls the data with Read Data(0xEB).
- *
- * Data format:
- * byte|7 6 5 4 3 2 1 0
- * ----+--------------------------------------------------------------
- * 0|Yovflw Xovflw Ysign Xsign 1 Middle Right Left
- * 1| X movement
- * 2| Y movement
- */
+ RELEASE_SCROLL_BUTTONS;
+}
\ No newline at end of file
#include <stdbool.h>
-#define PS2_MOUSE_READ_DATA 0xEB
-
/*
* Data format:
* byte|7 6 5 4 3 2 1 0
- * ----+--------------------------------------------------------------
- * 0|Yovflw Xovflw Ysign Xsign 1 Middle Right Left
- * 1| X movement(0-255)
- * 2| Y movement(0-255)
+ * ----+----------------------------------------------------------------
+ * 0|[Yovflw][Xovflw][Ysign ][Xsign ][ 1 ][Middle][Right ][Left ]
+ * 1|[ X movement(0-255) ]
+ * 2|[ Y movement(0-255) ]
*/
#define PS2_MOUSE_BTN_MASK 0x07
#define PS2_MOUSE_BTN_LEFT 0
#define PS2_MOUSE_X_OVFLW 6
#define PS2_MOUSE_Y_OVFLW 7
-
-/*
- * Scroll by mouse move with pressing button
- */
/* mouse button to start scrolling; set 0 to disable scroll */
#ifndef PS2_MOUSE_SCROLL_BTN_MASK
#define PS2_MOUSE_SCROLL_BTN_MASK (1<<PS2_MOUSE_BTN_MIDDLE)
#ifndef PS2_MOUSE_SCROLL_DIVISOR_H
#define PS2_MOUSE_SCROLL_DIVISOR_H 2
#endif
+/* multiply reported mouse values by these */
+#ifndef PS2_MOUSE_X_MULTIPLIER
+#define PS2_MOUSE_X_MULTIPLIER 1
+#endif
+#ifndef PS2_MOUSE_Y_MULTIPLIER
+#define PS2_MOUSE_Y_MULTIPLIER 1
+#endif
+#ifndef PS2_MOUSE_V_MULTIPLIER
+#define PS2_MOUSE_V_MULTIPLIER 1
+#endif
+/* For some mice this will need to be 0x0F */
+#ifndef PS2_MOUSE_SCROLL_MASK
+#define PS2_MOUSE_SCROLL_MASK 0xFF
+#endif
+
+enum ps2_mouse_command_e {
+ PS2_MOUSE_RESET = 0xFF,
+ PS2_MOUSE_RESEND = 0xFE,
+ PS2_MOSUE_SET_DEFAULTS = 0xF6,
+ PS2_MOUSE_DISABLE_DATA_REPORTING = 0xF5,
+ PS2_MOUSE_ENABLE_DATA_REPORTING = 0xF4,
+ PS2_MOUSE_SET_SAMPLE_RATE = 0xF3,
+ PS2_MOUSE_GET_DEVICE_ID = 0xF2,
+ PS2_MOUSE_SET_REMOTE_MODE = 0xF0,
+ PS2_MOUSE_SET_WRAP_MODE = 0xEC,
+ PS2_MOUSE_READ_DATA = 0xEB,
+ PS2_MOUSE_SET_STREAM_MODE = 0xEA,
+ PS2_MOUSE_STATUS_REQUEST = 0xE9,
+ PS2_MOUSE_SET_RESOLUTION = 0xE8,
+ PS2_MOUSE_SET_SCALING_2_1 = 0xE7,
+ PS2_MOUSE_SET_SCALING_1_1 = 0xE6,
+};
+
+typedef enum ps2_mouse_resolution_e {
+ PS2_MOUSE_1_COUNT_MM,
+ PS2_MOUSE_2_COUNT_MM,
+ PS2_MOUSE_4_COUNT_MM,
+ PS2_MOUSE_8_COUNT_MM,
+} ps2_mouse_resolution_t;
+typedef enum ps2_mouse_sample_rate_e {
+ PS2_MOUSE_10_SAMPLES_SEC = 10,
+ PS2_MOUSE_20_SAMPLES_SEC = 20,
+ PS2_MOUSE_40_SAMPLES_SEC = 40,
+ PS2_MOUSE_60_SAMPLES_SEC = 60,
+ PS2_MOUSE_80_SAMPLES_SEC = 80,
+ PS2_MOUSE_100_SAMPLES_SEC = 100,
+ PS2_MOUSE_200_SAMPLES_SEC = 200,
+} ps2_mouse_sample_rate_t;
+
+void ps2_mouse_init(void);
-uint8_t ps2_mouse_init(void);
void ps2_mouse_task(void);
+void ps2_mouse_disable_data_reporting(void);
+
+void ps2_mouse_enable_data_reporting(void);
+
+void ps2_mouse_set_remote_mode(void);
+
+void ps2_mouse_set_stream_mode(void);
+
+void ps2_mouse_set_scaling_2_1(void);
+
+void ps2_mouse_set_scaling_1_1(void);
+
+void ps2_mouse_set_resolution(ps2_mouse_resolution_t resolution);
+
+void ps2_mouse_set_sample_rate(ps2_mouse_sample_rate_t sample_rate);
+
#endif
projects / qmk_firmware.git / commitdiff