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author | Jack Humbert <jack.humb@gmail.com> | 2015-10-27 14:52:18 -0400 |
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committer | Jack Humbert <jack.humb@gmail.com> | 2015-10-27 14:52:18 -0400 |
commit | d311fd8d1a0af3b767d26b520d399bf0db22f058 (patch) | |
tree | b9de5704143ac205b4e26222f9d7551e9b161924 /tmk_core/protocol/serial_mouse_microsoft.c | |
parent | a766918d5c48204375f4c207b30bbbf1389df14f (diff) | |
parent | 6f3141965e88c4ee0ebf7c18a243e4c2d9c5021b (diff) |
Merge pull request #34 from jackhumbert/tmk-master
merging from tmk, new_project script and template
Diffstat (limited to 'tmk_core/protocol/serial_mouse_microsoft.c')
-rw-r--r-- | tmk_core/protocol/serial_mouse_microsoft.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/tmk_core/protocol/serial_mouse_microsoft.c b/tmk_core/protocol/serial_mouse_microsoft.c new file mode 100644 index 0000000000..ab74b7cdd3 --- /dev/null +++ b/tmk_core/protocol/serial_mouse_microsoft.c @@ -0,0 +1,124 @@ +/* +Copyright 2014 Robin Haberkorn <robin.haberkorn@googlemail.com> + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <stdint.h> +#include <avr/io.h> +#include <util/delay.h> + +#include "serial.h" +#include "serial_mouse.h" +#include "report.h" +#include "host.h" +#include "timer.h" +#include "print.h" +#include "debug.h" + +#ifdef MAX +#undef MAX +#endif +#define MAX(X, Y) ((X) > (Y) ? (X) : (Y)) + +static void print_usb_data(const report_mouse_t *report); + +void serial_mouse_task(void) +{ + /* 3 byte ring buffer */ + static uint8_t buffer[3]; + static int buffer_cur = 0; + + static report_mouse_t report = {}; + + int16_t rcv; + + rcv = serial_recv2(); + if (rcv < 0) + /* no new data */ + return; + + if (debug_mouse) + xprintf("serial_mouse: byte: %04X\n", rcv); + + /* + * If bit 6 is one, this signals the beginning + * of a 3 byte sequence/packet. + */ + if (rcv & (1 << 6)) + buffer_cur = 0; + + buffer[buffer_cur] = (uint8_t)rcv; + + if (buffer_cur == 0 && buffer[buffer_cur] == 0x20) { + /* + * Logitech extension: This must be a follow-up on + * the last 3-byte packet signaling a middle button click + */ + report.buttons |= MOUSE_BTN3; + report.x = report.y = 0; + + print_usb_data(&report); + host_mouse_send(&report); + return; + } + + buffer_cur++; + + if (buffer_cur < 3) + return; + buffer_cur = 0; + + /* + * parse 3 byte packet. + * NOTE: We only get a complete packet + * if the mouse moved or the button states + * change. + */ + report.buttons = 0; + if (buffer[0] & (1 << 5)) + report.buttons |= MOUSE_BTN1; + if (buffer[0] & (1 << 4)) + report.buttons |= MOUSE_BTN2; + + report.x = (buffer[0] << 6) | buffer[1]; + report.y = ((buffer[0] << 4) & 0xC0) | buffer[2]; + + /* USB HID uses values from -127 to 127 only */ + report.x = MAX(report.x, -127); + report.y = MAX(report.y, -127); + +#if 0 + if (!report.buttons && !report.x && !report.y) { + /* + * Microsoft extension: Middle mouse button pressed + * FIXME: I don't know how exactly this extension works. + */ + report.buttons |= MOUSE_BTN3; + } +#endif + + print_usb_data(&report); + host_mouse_send(&report); +} + +static void print_usb_data(const report_mouse_t *report) +{ + if (!debug_mouse) + return; + + xprintf("serial_mouse usb: [%02X|%d %d %d %d]\n", + report->buttons, report->x, report->y, + report->v, report->h); +} |