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author | Christopher Browne <cbbrowne@ca.afilias.info> | 2016-07-07 17:13:22 +0200 |
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committer | Christopher Browne <cbbrowne@ca.afilias.info> | 2016-07-07 17:13:22 +0200 |
commit | 97dfbd1afce005392aa8f067e89bdf95334bdea5 (patch) | |
tree | 1b198dd239bcb49564c31f124978abde0b467a81 /quantum/serial_link/system/serial_link.c | |
parent | 2e1cfaf73fccdfaba2d7542f00bd7c3d49998d5d (diff) | |
parent | ad43d450ca1b988d196da80e2a745f45f24068f6 (diff) | |
download | qmk_firmware-97dfbd1afce005392aa8f067e89bdf95334bdea5.tar.gz qmk_firmware-97dfbd1afce005392aa8f067e89bdf95334bdea5.tar.xz |
Merge branch 'master' of https://github.com/jackhumbert/qmk_firmware
Diffstat (limited to 'quantum/serial_link/system/serial_link.c')
-rw-r--r-- | quantum/serial_link/system/serial_link.c | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/quantum/serial_link/system/serial_link.c b/quantum/serial_link/system/serial_link.c new file mode 100644 index 000000000..75c7e77a7 --- /dev/null +++ b/quantum/serial_link/system/serial_link.c @@ -0,0 +1,265 @@ +/* +The MIT License (MIT) + +Copyright (c) 2016 Fred Sundvik + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ +#include "report.h" +#include "host_driver.h" +#include "serial_link/system/serial_link.h" +#include "hal.h" +#include "serial_link/protocol/byte_stuffer.h" +#include "serial_link/protocol/transport.h" +#include "serial_link/protocol/frame_router.h" +#include "matrix.h" +#include <stdbool.h> +#include "print.h" +#include "config.h" + +static event_source_t new_data_event; +static bool serial_link_connected; +static bool is_master = false; + +static uint8_t keyboard_leds(void); +static void send_keyboard(report_keyboard_t *report); +static void send_mouse(report_mouse_t *report); +static void send_system(uint16_t data); +static void send_consumer(uint16_t data); + +host_driver_t serial_driver = { + keyboard_leds, + send_keyboard, + send_mouse, + send_system, + send_consumer +}; + +// Define these in your Config.h file +#ifndef SERIAL_LINK_BAUD +#error "Serial link baud is not set" +#endif + +#ifndef SERIAL_LINK_THREAD_PRIORITY +#error "Serial link thread priority not set" +#endif + +static SerialConfig config = { + .sc_speed = SERIAL_LINK_BAUD +}; + +//#define DEBUG_LINK_ERRORS + +static uint32_t read_from_serial(SerialDriver* driver, uint8_t link) { + const uint32_t buffer_size = 16; + uint8_t buffer[buffer_size]; + uint32_t bytes_read = sdAsynchronousRead(driver, buffer, buffer_size); + uint8_t* current = buffer; + uint8_t* end = current + bytes_read; + while(current < end) { + byte_stuffer_recv_byte(link, *current); + current++; + } + return bytes_read; +} + +static void print_error(char* str, eventflags_t flags, SerialDriver* driver) { +#ifdef DEBUG_LINK_ERRORS + if (flags & SD_PARITY_ERROR) { + print(str); + print(" Parity error\n"); + } + if (flags & SD_FRAMING_ERROR) { + print(str); + print(" Framing error\n"); + } + if (flags & SD_OVERRUN_ERROR) { + print(str); + uint32_t size = qSpaceI(&(driver->iqueue)); + xprintf(" Overrun error, queue size %d\n", size); + + } + if (flags & SD_NOISE_ERROR) { + print(str); + print(" Noise error\n"); + } + if (flags & SD_BREAK_DETECTED) { + print(str); + print(" Break detected\n"); + } +#else + (void)str; + (void)flags; + (void)driver; +#endif +} + +bool is_serial_link_master(void) { + return is_master; +} + +// TODO: Optimize the stack size, this is probably way too big +static THD_WORKING_AREA(serialThreadStack, 1024); +static THD_FUNCTION(serialThread, arg) { + (void)arg; + event_listener_t new_data_listener; + event_listener_t sd1_listener; + event_listener_t sd2_listener; + chEvtRegister(&new_data_event, &new_data_listener, 0); + eventflags_t events = CHN_INPUT_AVAILABLE + | SD_PARITY_ERROR | SD_FRAMING_ERROR | SD_OVERRUN_ERROR | SD_NOISE_ERROR | SD_BREAK_DETECTED; + chEvtRegisterMaskWithFlags(chnGetEventSource(&SD1), + &sd1_listener, + EVENT_MASK(1), + events); + chEvtRegisterMaskWithFlags(chnGetEventSource(&SD2), + &sd2_listener, + EVENT_MASK(2), + events); + bool need_wait = false; + while(true) { + eventflags_t flags1 = 0; + eventflags_t flags2 = 0; + if (need_wait) { + eventmask_t mask = chEvtWaitAnyTimeout(ALL_EVENTS, MS2ST(1000)); + if (mask & EVENT_MASK(1)) { + flags1 = chEvtGetAndClearFlags(&sd1_listener); + print_error("DOWNLINK", flags1, &SD1); + } + if (mask & EVENT_MASK(2)) { + flags2 = chEvtGetAndClearFlags(&sd2_listener); + print_error("UPLINK", flags2, &SD2); + } + } + + // Always stay as master, even if the USB goes into sleep mode + is_master |= usbGetDriverStateI(&USBD1) == USB_ACTIVE; + router_set_master(is_master); + + need_wait = true; + need_wait &= read_from_serial(&SD2, UP_LINK) == 0; + need_wait &= read_from_serial(&SD1, DOWN_LINK) == 0; + update_transport(); + } +} + +void send_data(uint8_t link, const uint8_t* data, uint16_t size) { + if (link == DOWN_LINK) { + sdWrite(&SD1, data, size); + } + else { + sdWrite(&SD2, data, size); + } +} + +static systime_t last_update = 0; + +typedef struct { + matrix_row_t rows[MATRIX_ROWS]; +} matrix_object_t; + +static matrix_object_t last_matrix = {}; + +SLAVE_TO_MASTER_OBJECT(keyboard_matrix, matrix_object_t); +MASTER_TO_ALL_SLAVES_OBJECT(serial_link_connected, bool); + +static remote_object_t* remote_objects[] = { + REMOTE_OBJECT(serial_link_connected), + REMOTE_OBJECT(keyboard_matrix), +}; + +void init_serial_link(void) { + serial_link_connected = false; + init_serial_link_hal(); + add_remote_objects(remote_objects, sizeof(remote_objects)/sizeof(remote_object_t*)); + init_byte_stuffer(); + sdStart(&SD1, &config); + sdStart(&SD2, &config); + chEvtObjectInit(&new_data_event); + (void)chThdCreateStatic(serialThreadStack, sizeof(serialThreadStack), + SERIAL_LINK_THREAD_PRIORITY, serialThread, NULL); +} + +void matrix_set_remote(matrix_row_t* rows, uint8_t index); + +void serial_link_update(void) { + if (read_serial_link_connected()) { + serial_link_connected = true; + } + + matrix_object_t matrix; + bool changed = false; + for(uint8_t i=0;i<MATRIX_ROWS;i++) { + matrix.rows[i] = matrix_get_row(i); + changed |= matrix.rows[i] != last_matrix.rows[i]; + } + + systime_t current_time = chVTGetSystemTimeX(); + systime_t delta = current_time - last_update; + if (changed || delta > US2ST(1000)) { + last_update = current_time; + last_matrix = matrix; + matrix_object_t* m = begin_write_keyboard_matrix(); + for(uint8_t i=0;i<MATRIX_ROWS;i++) { + m->rows[i] = matrix.rows[i]; + } + end_write_keyboard_matrix(); + *begin_write_serial_link_connected() = true; + end_write_serial_link_connected(); + } + + matrix_object_t* m = read_keyboard_matrix(0); + if (m) { + matrix_set_remote(m->rows, 0); + } +} + +void signal_data_written(void) { + chEvtBroadcast(&new_data_event); +} + +bool is_serial_link_connected(void) { + return serial_link_connected; +} + +host_driver_t* get_serial_link_driver(void) { + return &serial_driver; +} + +// NOTE: The driver does nothing, because the master handles everything +uint8_t keyboard_leds(void) { + return 0; +} + +void send_keyboard(report_keyboard_t *report) { + (void)report; +} + +void send_mouse(report_mouse_t *report) { + (void)report; +} + +void send_system(uint16_t data) { + (void)data; +} + +void send_consumer(uint16_t data) { + (void)data; +} + |