diff options
42 files changed, 4186 insertions, 18 deletions
@@ -59,6 +59,12 @@ ifndef KEYBOARD KEYBOARD=planck endif +MASTER ?= left +ifdef master + MASTER = $(master) +endif + + # converts things to keyboards/subproject ifneq (,$(findstring /,$(KEYBOARD))) TEMP:=$(KEYBOARD) @@ -198,10 +204,28 @@ ifeq ($(strip $(RGBLIGHT_ENABLE)), yes) endif ifeq ($(strip $(TAP_DANCE_ENABLE)), yes) - OPT_DEFS += -DTAP_DANCE_ENABLE + OPT_DEFS += -DTAP_DANCE_ENABLE SRC += $(QUANTUM_DIR)/process_keycode/process_tap_dance.c endif +ifeq ($(strip $(SERIAL_LINK_ENABLE)), yes) + SERIAL_DIR = $(QUANTUM_DIR)/serial_link + SERIAL_PATH = $(QUANTUM_PATH)/serial_link + SERIAL_SRC = $(wildcard $(SERIAL_PATH)/protocol/*.c) + SERIAL_SRC += $(wildcard $(SERIAL_PATH)/system/*.c) + SRC += $(patsubst $(QUANTUM_PATH)/%,%,$(SERIAL_SRC)) + OPT_DEFS += -DSERIAL_LINK_ENABLE + VAPTH += $(SERIAL_PATH) +endif + +ifeq ($(MASTER),right) + OPT_DEFS += -DMASTER_IS_ON_RIGHT +else + ifneq ($(MASTER),left) +$(error MASTER does not have a valid value(left/right)) + endif +endif + # Optimize size but this may cause error "relocation truncated to fit" #EXTRALDFLAGS = -Wl,--relax diff --git a/keyboards/ergodox_ez/matrix.c b/keyboards/ergodox_ez/matrix.c index 9c1efa1d05..dc29cf5cd0 100644 --- a/keyboards/ergodox_ez/matrix.c +++ b/keyboards/ergodox_ez/matrix.c @@ -39,6 +39,17 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. #include "timer.h" #endif +/* + * This constant define not debouncing time in msecs, but amount of matrix + * scan loops which should be made to get stable debounced results. + * + * On Ergodox matrix scan rate is relatively low, because of slow I2C. + * Now it's only 317 scans/second, or about 3.15 msec/scan. + * According to Cherry specs, debouncing time is 5 msec. + * + * And so, there is no sense to have DEBOUNCE higher than 2. + */ + #ifndef DEBOUNCE # define DEBOUNCE 5 #endif @@ -181,6 +192,7 @@ uint8_t matrix_scan(void) if (debouncing) { if (--debouncing) { wait_us(1); + // this should be wait_ms(1) but has been left as-is at EZ's request } else { for (uint8_t i = 0; i < MATRIX_ROWS; i++) { matrix[i] = matrix_debouncing[i]; diff --git a/keyboards/infinity_ergodox/Makefile b/keyboards/infinity_ergodox/Makefile index fb21aae5eb..efa32e037d 100644 --- a/keyboards/infinity_ergodox/Makefile +++ b/keyboards/infinity_ergodox/Makefile @@ -66,6 +66,7 @@ COMMAND_ENABLE ?= yes # Commands for debug and configuration SLEEP_LED_ENABLE ?= yes # Breathing sleep LED during USB suspend NKRO_ENABLE ?= yes # USB Nkey Rollover CUSTOM_MATRIX ?= yes # Custom matrix file +SERIAL_LINK_ENABLE = yes ifndef QUANTUM_DIR include ../../Makefile diff --git a/keyboards/infinity_ergodox/infinity_ergodox.c b/keyboards/infinity_ergodox/infinity_ergodox.c index 34aded1a73..85054775e8 100644 --- a/keyboards/infinity_ergodox/infinity_ergodox.c +++ b/keyboards/infinity_ergodox/infinity_ergodox.c @@ -1 +1,11 @@ #include "infinity_ergodox.h" +#include "ch.h" +#include "hal.h" +#include "serial_link/system/serial_link.h" + +void init_serial_link_hal(void) { + PORTA->PCR[1] = PORTx_PCRn_PE | PORTx_PCRn_PS | PORTx_PCRn_PFE | PORTx_PCRn_MUX(2); + PORTA->PCR[2] = PORTx_PCRn_DSE | PORTx_PCRn_SRE | PORTx_PCRn_MUX(2); + PORTE->PCR[0] = PORTx_PCRn_PE | PORTx_PCRn_PS | PORTx_PCRn_PFE | PORTx_PCRn_MUX(3); + PORTE->PCR[1] = PORTx_PCRn_DSE | PORTx_PCRn_SRE | PORTx_PCRn_MUX(3); +} diff --git a/quantum/matrix.c b/quantum/matrix.c index 0949170255..3174e07390 100644 --- a/quantum/matrix.c +++ b/quantum/matrix.c @@ -27,16 +27,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. #include "matrix.h" /* Set 0 if debouncing isn't needed */ -/* - * This constant define not debouncing time in msecs, but amount of matrix - * scan loops which should be made to get stable debounced results. - * - * On Ergodox matrix scan rate is relatively low, because of slow I2C. - * Now it's only 317 scans/second, or about 3.15 msec/scan. - * According to Cherry specs, debouncing time is 5 msec. - * - * And so, there is no sense to have DEBOUNCE higher than 2. - */ #ifndef DEBOUNCING_DELAY # define DEBOUNCING_DELAY 5 @@ -168,7 +158,7 @@ uint8_t matrix_scan(void) if (debouncing) { if (--debouncing) { - wait_us(1); + wait_ms(1); } else { for (uint8_t i = 0; i < MATRIX_ROWS; i++) { matrix[i] = matrix_debouncing[i]; @@ -192,7 +182,7 @@ uint8_t matrix_scan(void) if (debouncing) { if (--debouncing) { - wait_us(1); + wait_ms(1); } else { for (uint8_t i = 0; i < MATRIX_COLS; i++) { matrix_reversed[i] = matrix_reversed_debouncing[i]; diff --git a/quantum/serial_link/LICENSE b/quantum/serial_link/LICENSE new file mode 100644 index 0000000000..d7cc3198cb --- /dev/null +++ b/quantum/serial_link/LICENSE @@ -0,0 +1,21 @@ +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. diff --git a/quantum/serial_link/README.md b/quantum/serial_link/README.md new file mode 100644 index 0000000000..e8490e290d --- /dev/null +++ b/quantum/serial_link/README.md @@ -0,0 +1 @@ +# qmk_serial_link
\ No newline at end of file diff --git a/quantum/serial_link/protocol/byte_stuffer.c b/quantum/serial_link/protocol/byte_stuffer.c new file mode 100644 index 0000000000..fb4c45a8dc --- /dev/null +++ b/quantum/serial_link/protocol/byte_stuffer.c @@ -0,0 +1,145 @@ +/* +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 "serial_link/protocol/byte_stuffer.h" +#include "serial_link/protocol/frame_validator.h" +#include "serial_link/protocol/physical.h" +#include <stdbool.h> + +// This implements the "Consistent overhead byte stuffing protocol" +// https://en.wikipedia.org/wiki/Consistent_Overhead_Byte_Stuffing +// http://www.stuartcheshire.org/papers/COBSforToN.pdf + +#define MAX_FRAME_SIZE 1024 +#define NUM_LINKS 2 + +typedef struct byte_stuffer_state { + uint16_t next_zero; + uint16_t data_pos; + bool long_frame; + uint8_t data[MAX_FRAME_SIZE]; +}byte_stuffer_state_t; + +static byte_stuffer_state_t states[NUM_LINKS]; + +void init_byte_stuffer_state(byte_stuffer_state_t* state) { + state->next_zero = 0; + state->data_pos = 0; + state->long_frame = false; +} + +void init_byte_stuffer(void) { + int i; + for (i=0;i<NUM_LINKS;i++) { + init_byte_stuffer_state(&states[i]); + } +} + +void byte_stuffer_recv_byte(uint8_t link, uint8_t data) { + byte_stuffer_state_t* state = &states[link]; + // Start of a new frame + if (state->next_zero == 0) { + state->next_zero = data; + state->long_frame = data == 0xFF; + state->data_pos = 0; + return; + } + + state->next_zero--; + if (data == 0) { + if (state->next_zero == 0) { + // The frame is completed + if (state->data_pos > 0) { + validator_recv_frame(link, state->data, state->data_pos); + } + } + else { + // The frame is invalid, so reset + init_byte_stuffer_state(state); + } + } + else { + if (state->data_pos == MAX_FRAME_SIZE) { + // We exceeded our maximum frame size + // therefore there's nothing else to do than reset to a new frame + state->next_zero = data; + state->long_frame = data == 0xFF; + state->data_pos = 0; + } + else if (state->next_zero == 0) { + if (state->long_frame) { + // This is part of a long frame, so continue + state->next_zero = data; + state->long_frame = data == 0xFF; + } + else { + // Special case for zeroes + state->next_zero = data; + state->data[state->data_pos++] = 0; + } + } + else { + state->data[state->data_pos++] = data; + } + } +} + +static void send_block(uint8_t link, uint8_t* start, uint8_t* end, uint8_t num_non_zero) { + send_data(link, &num_non_zero, 1); + if (end > start) { + send_data(link, start, end-start); + } +} + +void byte_stuffer_send_frame(uint8_t link, uint8_t* data, uint16_t size) { + const uint8_t zero = 0; + if (size > 0) { + uint16_t num_non_zero = 1; + uint8_t* end = data + size; + uint8_t* start = data; + while (data < end) { + if (num_non_zero == 0xFF) { + // There's more data after big non-zero block + // So send it, and start a new block + send_block(link, start, data, num_non_zero); + start = data; + num_non_zero = 1; + } + else { + if (*data == 0) { + // A zero encountered, so send the block + send_block(link, start, data, num_non_zero); + start = data + 1; + num_non_zero = 1; + } + else { + num_non_zero++; + } + ++data; + } + } + send_block(link, start, data, num_non_zero); + send_data(link, &zero, 1); + } +} diff --git a/quantum/serial_link/protocol/byte_stuffer.h b/quantum/serial_link/protocol/byte_stuffer.h new file mode 100644 index 0000000000..2cc88beb42 --- /dev/null +++ b/quantum/serial_link/protocol/byte_stuffer.h @@ -0,0 +1,34 @@ +/* +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. +*/ + +#ifndef SERIAL_LINK_BYTE_STUFFER_H +#define SERIAL_LINK_BYTE_STUFFER_H + +#include <stdint.h> + +void init_byte_stuffer(void); +void byte_stuffer_recv_byte(uint8_t link, uint8_t data); +void byte_stuffer_send_frame(uint8_t link, uint8_t* data, uint16_t size); + +#endif diff --git a/quantum/serial_link/protocol/frame_router.c b/quantum/serial_link/protocol/frame_router.c new file mode 100644 index 0000000000..04b8c2e75c --- /dev/null +++ b/quantum/serial_link/protocol/frame_router.c @@ -0,0 +1,69 @@ +/* +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 "serial_link/protocol/frame_router.h" +#include "serial_link/protocol/transport.h" +#include "serial_link/protocol/frame_validator.h" + +static bool is_master; + +void router_set_master(bool master) { + is_master = master; +} + +void route_incoming_frame(uint8_t link, uint8_t* data, uint16_t size){ + if (is_master) { + if (link == DOWN_LINK) { + transport_recv_frame(data[size-1], data, size - 1); + } + } + else { + if (link == UP_LINK) { + if (data[size-1] & 1) { + transport_recv_frame(0, data, size - 1); + } + data[size-1] >>= 1; + validator_send_frame(DOWN_LINK, data, size); + } + else { + data[size-1]++; + validator_send_frame(UP_LINK, data, size); + } + } +} + +void router_send_frame(uint8_t destination, uint8_t* data, uint16_t size) { + if (destination == 0) { + if (!is_master) { + data[size] = 1; + validator_send_frame(UP_LINK, data, size + 1); + } + } + else { + if (is_master) { + data[size] = destination; + validator_send_frame(DOWN_LINK, data, size + 1); + } + } +} diff --git a/quantum/serial_link/protocol/frame_router.h b/quantum/serial_link/protocol/frame_router.h new file mode 100644 index 0000000000..712250ff35 --- /dev/null +++ b/quantum/serial_link/protocol/frame_router.h @@ -0,0 +1,38 @@ +/* +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. +*/ + +#ifndef SERIAL_LINK_FRAME_ROUTER_H +#define SERIAL_LINK_FRAME_ROUTER_H + +#include <stdint.h> +#include <stdbool.h> + +#define UP_LINK 0 +#define DOWN_LINK 1 + +void router_set_master(bool master); +void route_incoming_frame(uint8_t link, uint8_t* data, uint16_t size); +void router_send_frame(uint8_t destination, uint8_t* data, uint16_t size); + +#endif diff --git a/quantum/serial_link/protocol/frame_validator.c b/quantum/serial_link/protocol/frame_validator.c new file mode 100644 index 0000000000..474f80ee8e --- /dev/null +++ b/quantum/serial_link/protocol/frame_validator.c @@ -0,0 +1,121 @@ +/* +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 "serial_link/protocol/frame_validator.h" +#include "serial_link/protocol/frame_router.h" +#include "serial_link/protocol/byte_stuffer.h" +#include <string.h> + +const uint32_t poly8_lookup[256] = +{ + 0, 0x77073096, 0xEE0E612C, 0x990951BA, + 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3, + 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, + 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, + 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, + 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, + 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, + 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5, + 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, + 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, + 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, + 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, + 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, + 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F, + 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, + 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, + 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, + 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433, + 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, + 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01, + 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, + 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, + 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, + 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, + 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, + 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, + 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, + 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, + 0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, + 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F, + 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, + 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD, + 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, + 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, + 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, + 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1, + 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, + 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7, + 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, + 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, + 0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, + 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B, + 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, + 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79, + 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, + 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, + 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, + 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D, + 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, + 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713, + 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, + 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, + 0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, + 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777, + 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, + 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45, + 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, + 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, + 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, + 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9, + 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, + 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF, + 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, + 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D +}; + +static uint32_t crc32_byte(uint8_t *p, uint32_t bytelength) +{ + uint32_t crc = 0xffffffff; + while (bytelength-- !=0) crc = poly8_lookup[((uint8_t) crc ^ *(p++))] ^ (crc >> 8); + // return (~crc); also works + return (crc ^ 0xffffffff); +} + +void validator_recv_frame(uint8_t link, uint8_t* data, uint16_t size) { + if (size > 4) { + uint32_t frame_crc; + memcpy(&frame_crc, data + size -4, 4); + uint32_t expected_crc = crc32_byte(data, size - 4); + if (frame_crc == expected_crc) { + route_incoming_frame(link, data, size-4); + } + } +} + +void validator_send_frame(uint8_t link, uint8_t* data, uint16_t size) { + uint32_t crc = crc32_byte(data, size); + memcpy(data + size, &crc, 4); + byte_stuffer_send_frame(link, data, size + 4); +} diff --git a/quantum/serial_link/protocol/frame_validator.h b/quantum/serial_link/protocol/frame_validator.h new file mode 100644 index 0000000000..4a910d510b --- /dev/null +++ b/quantum/serial_link/protocol/frame_validator.h @@ -0,0 +1,34 @@ +/* +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. +*/ + +#ifndef SERIAL_LINK_FRAME_VALIDATOR_H +#define SERIAL_LINK_FRAME_VALIDATOR_H + +#include <stdint.h> + +void validator_recv_frame(uint8_t link, uint8_t* data, uint16_t size); +// The buffer pointed to by the data needs 4 additional bytes +void validator_send_frame(uint8_t link, uint8_t* data, uint16_t size); + +#endif diff --git a/quantum/serial_link/protocol/physical.h b/quantum/serial_link/protocol/physical.h new file mode 100644 index 0000000000..425e06cdd2 --- /dev/null +++ b/quantum/serial_link/protocol/physical.h @@ -0,0 +1,30 @@ +/* +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. +*/ + +#ifndef SERIAL_LINK_PHYSICAL_H +#define SERIAL_LINK_PHYSICAL_H + +void send_data(uint8_t link, const uint8_t* data, uint16_t size); + +#endif diff --git a/quantum/serial_link/protocol/transport.c b/quantum/serial_link/protocol/transport.c new file mode 100644 index 0000000000..f418d11ceb --- /dev/null +++ b/ |