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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_mousesystems.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_mousesystems.c')
-rw-r--r-- | tmk_core/protocol/serial_mouse_mousesystems.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/tmk_core/protocol/serial_mouse_mousesystems.c b/tmk_core/protocol/serial_mouse_mousesystems.c new file mode 100644 index 0000000000..cfe8996216 --- /dev/null +++ b/tmk_core/protocol/serial_mouse_mousesystems.c @@ -0,0 +1,131 @@ +/* +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)) + +//#define SERIAL_MOUSE_CENTER_SCROLL + +static void print_usb_data(const report_mouse_t *report); + +void serial_mouse_task(void) +{ + /* 5 byte ring buffer */ + static uint8_t buffer[5]; + static int buffer_cur = 0; + + int16_t rcv; + + report_mouse_t report = {0, 0, 0, 0, 0}; + + rcv = serial_recv2(); + if (rcv < 0) + /* no new data */ + return; + + if (debug_mouse) + xprintf("serial_mouse: byte: %04X\n", rcv); + + /* + * Synchronization: mouse(4) says that all + * bytes but the first one in the packet have + * bit 7 == 0, but this is untrue. + * Therefore we discard all bytes up to the + * first one with the characteristic bit pattern. + */ + if (buffer_cur == 0 && (rcv >> 3) != 0x10) + return; + + buffer[buffer_cur++] = (uint8_t)rcv; + + if (buffer_cur < 5) + return; + buffer_cur = 0; + +#ifdef SERIAL_MOUSE_CENTER_SCROLL + if ((buffer[0] & 0x7) == 0x5 && (buffer[1] || buffer[2])) { + /* USB HID uses only values from -127 to 127 */ + report.h = MAX((int8_t)buffer[1], -127); + report.v = MAX((int8_t)buffer[2], -127); + + print_usb_data(&report); + host_mouse_send(&report); + + if (buffer[3] || buffer[4]) { + report.h = MAX((int8_t)buffer[3], -127); + report.v = MAX((int8_t)buffer[4], -127); + + print_usb_data(&report); + host_mouse_send(&report); + } + + return; + } +#endif + + /* + * parse 5 byte packet. + * NOTE: We only get a complete packet + * if the mouse moved or the button states + * change. + */ + if (!(buffer[0] & (1 << 2))) + report.buttons |= MOUSE_BTN1; + if (!(buffer[0] & (1 << 1))) + report.buttons |= MOUSE_BTN3; + if (!(buffer[0] & (1 << 0))) + report.buttons |= MOUSE_BTN2; + + /* USB HID uses only values from -127 to 127 */ + report.x = MAX((int8_t)buffer[1], -127); + report.y = MAX(-(int8_t)buffer[2], -127); + + print_usb_data(&report); + host_mouse_send(&report); + + if (buffer[3] || buffer[4]) { + report.x = MAX((int8_t)buffer[3], -127); + report.y = MAX(-(int8_t)buffer[4], -127); + + 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); +} |