diff options
Diffstat (limited to 'quantum/serial_link/protocol')
| -rw-r--r-- | quantum/serial_link/protocol/byte_stuffer.c | 135 | ||||
| -rw-r--r-- | quantum/serial_link/protocol/byte_stuffer.h | 34 | ||||
| -rw-r--r-- | quantum/serial_link/protocol/frame_router.c | 64 | ||||
| -rw-r--r-- | quantum/serial_link/protocol/frame_router.h | 35 | ||||
| -rw-r--r-- | quantum/serial_link/protocol/frame_validator.c | 57 | ||||
| -rw-r--r-- | quantum/serial_link/protocol/frame_validator.h | 31 | ||||
| -rw-r--r-- | quantum/serial_link/protocol/physical.h | 27 | ||||
| -rw-r--r-- | quantum/serial_link/protocol/transport.c | 121 | ||||
| -rw-r--r-- | quantum/serial_link/protocol/transport.h | 139 | ||||
| -rw-r--r-- | quantum/serial_link/protocol/triple_buffered_object.c | 77 | ||||
| -rw-r--r-- | quantum/serial_link/protocol/triple_buffered_object.h | 44 |
11 files changed, 0 insertions, 764 deletions
diff --git a/quantum/serial_link/protocol/byte_stuffer.c b/quantum/serial_link/protocol/byte_stuffer.c deleted file mode 100644 index d3a91d8286..0000000000 --- a/quantum/serial_link/protocol/byte_stuffer.c +++ /dev/null @@ -1,135 +0,0 @@ -/* -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 - -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 deleted file mode 100644 index 397ed3baae..0000000000 --- a/quantum/serial_link/protocol/byte_stuffer.h +++ /dev/null @@ -1,34 +0,0 @@ -/* -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. -*/ - -#pragma once - -#include <stdint.h> - -#define MAX_FRAME_SIZE 1024 -#define NUM_LINKS 2 - -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); diff --git a/quantum/serial_link/protocol/frame_router.c b/quantum/serial_link/protocol/frame_router.c deleted file mode 100644 index 5292673700..0000000000 --- a/quantum/serial_link/protocol/frame_router.c +++ /dev/null @@ -1,64 +0,0 @@ -/* -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 deleted file mode 100644 index 9325fe4eed..0000000000 --- a/quantum/serial_link/protocol/frame_router.h +++ /dev/null @@ -1,35 +0,0 @@ -/* -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. -*/ - -#pragma once - -#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); diff --git a/quantum/serial_link/protocol/frame_validator.c b/quantum/serial_link/protocol/frame_validator.c deleted file mode 100644 index bc9136f70b..0000000000 --- a/quantum/serial_link/protocol/frame_validator.c +++ /dev/null @@ -1,57 +0,0 @@ -/* -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 deleted file mode 100644 index 0f78768a00..0000000000 --- a/quantum/serial_link/protocol/frame_validator.h +++ /dev/null @@ -1,31 +0,0 @@ -/* -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. -*/ - -#pragma once - -#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); diff --git a/quantum/serial_link/protocol/physical.h b/quantum/serial_link/protocol/physical.h deleted file mode 100644 index 399c9d1f76..0000000000 --- a/quantum/serial_link/protocol/physical.h +++ /dev/null @@ -1,27 +0,0 @@ -/* -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. -*/ - -#pragma once - -void send_data(uint8_t link, const uint8_t* data, uint16_t size); diff --git a/quantum/serial_link/protocol/transport.c b/quantum/serial_link/protocol/transport.c deleted file mode 100644 index 73b8dc62e9..0000000000 --- a/quantum/serial_link/protocol/transport.c +++ /dev/null @@ -1,121 +0,0 @@ -/* -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/transport.h" -#include "serial_link/protocol/frame_router.h" -#include "serial_link/protocol/triple_buffered_object.h" -#include <string.h> - -#define MAX_REMOTE_OBJECTS 16 -static remote_object_t* remote_objects[MAX_REMOTE_OBJECTS]; -static uint32_t num_remote_objects = 0; - -void reinitialize_serial_link_transport(void) { num_remote_objects = 0; } - -void add_remote_objects(remote_object_t** _remote_objects, uint32_t _num_remote_objects) { - unsigned int i; - for (i = 0; i < _num_remote_objects; i++) { - remote_object_t* obj = _remote_objects[i]; - remote_objects[num_remote_objects++] = obj; - if (obj->object_type == MASTER_TO_ALL_SLAVES) { - triple_buffer_object_t* tb = (triple_buffer_object_t*)obj->buffer; - triple_buffer_init(tb); - uint8_t* start = obj->buffer + LOCAL_OBJECT_SIZE(obj->object_size); - tb = (triple_buffer_object_t*)start; - triple_buffer_init(tb); - } else if (obj->object_type == MASTER_TO_SINGLE_SLAVE) { - uint8_t* start = obj->buffer; - unsigned int j; - for (j = 0; j < NUM_SLAVES; j++) { - triple_buffer_object_t* tb = (triple_buffer_object_t*)start; - triple_buffer_init(tb); - start += LOCAL_OBJECT_SIZE(obj->object_size); - } - triple_buffer_object_t* tb = (triple_buffer_object_t*)start; - triple_buffer_init(tb); - } else { - uint8_t* start = obj->buffer; - triple_buffer_object_t* tb = (triple_buffer_object_t*)start; - triple_buffer_init(tb); - start += LOCAL_OBJECT_SIZE(obj->object_size); - unsigned int j; - for (j = 0; j < NUM_SLAVES; j++) { - tb = (triple_buffer_object_t*)start; - triple_buffer_init(tb); - start += REMOTE_OBJECT_SIZE(obj->object_size); - } - } - } -} - -void transport_recv_frame(uint8_t from, uint8_t* data, uint16_t size) { - uint8_t id = data[size - 1]; - if (id < num_remote_objects) { - remote_object_t* obj = remote_objects[id]; - if (obj->object_size == size - 1) { - uint8_t* start; - if (obj->object_type == MASTER_TO_ALL_SLAVES) { - start = obj->buffer + LOCAL_OBJECT_SIZE(obj->object_size); - } else if (obj->object_type == SLAVE_TO_MASTER) { - start = obj->buffer + LOCAL_OBJECT_SIZE(obj->object_size); - start += (from - 1) * REMOTE_OBJECT_SIZE(obj->object_size); - } else { - start = obj->buffer + NUM_SLAVES * LOCAL_OBJECT_SIZE(obj->object_size); - } - triple_buffer_object_t* tb = (triple_buffer_object_t*)start; - void* ptr = triple_buffer_begin_write_internal(obj->object_size, tb); - memcpy(ptr, data, size - 1); - triple_buffer_end_write_internal(tb); - } - } -} - -void update_transport(void) { - unsigned int i; - for (i = 0; i < num_remote_objects; i++) { - remote_object_t* obj = remote_objects[i]; - if (obj->object_type == MASTER_TO_ALL_SLAVES || obj->object_type == SLAVE_TO_MASTER) { - triple_buffer_object_t* tb = (triple_buffer_object_t*)obj->buffer; - uint8_t* ptr = (uint8_t*)triple_buffer_read_internal(obj->object_size + LOCAL_OBJECT_EXTRA, tb); - if (ptr) { - ptr[obj->object_size] = i; - uint8_t dest = obj->object_type == MASTER_TO_ALL_SLAVES ? 0xFF : 0; - router_send_frame(dest, ptr, obj->object_size + 1); - } - } else { - uint8_t* start = obj->buffer; - unsigned int j; - for (j = 0; j < NUM_SLAVES; j++) { - triple_buffer_object_t* tb = (triple_buffer_object_t*)start; - uint8_t* ptr = (uint8_t*)triple_buffer_read_internal(obj->object_size + LOCAL_OBJECT_EXTRA, tb); - if (ptr) { - ptr[obj->object_size] = i; - uint8_t dest = j + 1; - router_send_frame(dest, ptr, obj->object_size + 1); - } - start += LOCAL_OBJECT_SIZE(obj->object_size); - } - } - } -} diff --git a/quantum/serial_link/protocol/transport.h b/quantum/serial_link/protocol/transport.h deleted file mode 100644 index 3ce0c9fe4e..0000000000 --- a/quantum/serial_link/protocol/transport.h +++ /dev/null @@ -1,139 +0,0 @@ -/* -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. -*/ - -#pragma once - -#include "serial_link/protocol/triple_buffered_object.h" -#include "serial_link/system/serial_link.h" - -#define NUM_SLAVES 8 -#define LOCAL_OBJECT_EXTRA 16 - -// master -> slave = 1 local(target all), 1 remote object -// slave -> master = 1 local(target 0), multiple remote objects -// master -> single slave (multiple local, target id), 1 remote object -typedef enum { - MASTER_TO_ALL_SLAVES, - MASTER_TO_SINGLE_SLAVE, - SLAVE_TO_MASTER, -} remote_object_type; - -typedef struct { - remote_object_type object_type; - uint16_t object_size; - uint8_t buffer[] __attribute__((aligned(4))); -} remote_object_t; - -#define REMOTE_OBJECT_SIZE(objectsize) (sizeof(triple_buffer_object_t) + objectsize * 3) -#define LOCAL_OBJECT_SIZE(objectsize) (sizeof(triple_buffer_object_t) + (objectsize + LOCAL_OBJECT_EXTRA) * 3) - -#define REMOTE_OBJECT_HELPER(name, type, num_local, num_remote) \ - typedef struct { \ - remote_object_t object; \ - uint8_t buffer[num_remote * REMOTE_OBJECT_SIZE(sizeof(type)) + num_local * LOCAL_OBJECT_SIZE(sizeof(type))]; \ - } remote_object_##name##_t; - -#define MASTER_TO_ALL_SLAVES_OBJECT(name, type) \ - REMOTE_OBJECT_HELPER(name, type, 1, 1) \ - remote_object_##name##_t remote_object_##name = {.object = { \ - .object_type = MASTER_TO_ALL_SLAVES, \ - .object_size = sizeof(type), \ - }}; \ - type* begin_write_##name(void) { \ - remote_object_t* obj = (remote_object_t*)&remote_object_##name; \ - triple_buffer_object_t* tb = (triple_buffer_object_t*)obj->buffer; \ - return (type*)triple_buffer_begin_write_internal(sizeof(type) + LOCAL_OBJECT_EXTRA, tb); \ - } \ - void end_write_##name(void) { \ - remote_object_t* obj = (remote_object_t*)&remote_object_##name; \ - triple_buffer_object_t* tb = (triple_buffer_object_t*)obj->buffer; \ - triple_buffer_end_write_internal(tb); \ - signal_data_written(); \ - } \ - type* read_##name(void) { \ - remote_object_t* obj = (remote_object_t*)&remote_object_##name; \ - uint8_t* start = obj->buffer + LOCAL_OBJECT_SIZE(obj->object_size); \ - triple_buffer_object_t* tb = (triple_buffer_object_t*)start; \ - return (type*)triple_buffer_read_internal(obj->object_size, tb); \ - } - -#define MASTER_TO_SINGLE_SLAVE_OBJECT(name, type) \ - REMOTE_OBJECT_HELPER(name, type, NUM_SLAVES, 1) \ - remote_object_##name##_t remote_object_##name = {.object = { \ - .object_type = MASTER_TO_SINGLE_SLAVE, \ - .object_size = sizeof(type), \ - }}; \ - type* begin_write_##name(uint8_t slave) { \ - remote_object_t* obj = (remote_object_t*)&remote_object_##name; \ - uint8_t* start = obj->buffer; \ - start += slave * LOCAL_OBJECT_SIZE(obj->object_size); \ - triple_buffer_object_t* tb = (triple_buffer_object_t*)start; \ - return (type*)triple_buffer_begin_write_internal(sizeof(type) + LOCAL_OBJECT_EXTRA, tb); \ - } \ - void end_write_##name(uint8_t slave) { \ - remote_object_t* obj = (remote_object_t*)&remote_object_##name; \ - uint8_t* start = obj->buffer; \ - start += slave * LOCAL_OBJECT_SIZE(obj->object_size); \ - triple_buffer_object_t* tb = (triple_buffer_object_t*)start; \ - triple_buffer_end_write_internal(tb); \ - signal_data_written(); \ - } \ - type* read_##name() { \ - remote_object_t* obj = (remote_object_t*)&remote_object_##name; \ - uint8_t* start = obj->buffer + NUM_SLAVES * LOCAL_OBJECT_SIZE(obj->object_size); \ - triple_buffer_object_t* tb = (triple_buffer_object_t*)start; \ - return (type*)triple_buffer_read_internal(obj->object_size, tb); \ - } - -#define SLAVE_TO_MASTER_OBJECT(name, type) \ - REMOTE_OBJECT_HELPER(name, type, 1, NUM_SLAVES) \ - remote_object_##name##_t remote_object_##name = {.object = { \ - .object_type = SLAVE_TO_MASTER, \ - .object_size = sizeof(type), \ - }}; \ - type* begin_write_##name(void) { \ - remote_object_t* obj = (remote_object_t*)&remote_object_##name; \ - triple_buffer_object_t* tb = (triple_buffer_object_t*)obj->buffer; \ - return (type*)triple_buffer_begin_write_internal(sizeof(type) + LOCAL_OBJECT_EXTRA, tb); \ - } \ - void end_write_##name(void) { \ - remote_object_t* obj = (remote_object_t*)&remote_object_##name; \ - triple_buffer_object_t* tb = (triple_buffer_object_t*)obj->buffer; \ - triple_buffer_end_write_internal(tb); \ - signal_data_written(); \ - } \ - type* read_##name(uint8_t slave) { \ - remote_object_t* obj = (remote_object_t*)&remote_object_##name; \ - uint8_t* start = obj->buffer + LOCAL_OBJECT_SIZE(obj->object_size); \ - start += slave * REMOTE_OBJECT_SIZE(obj->object_size); \ - triple_buffer_object_t* tb = (triple_buffer_object_t*)start; \ - return (type*)triple_buffer_read_internal(obj->object_size, tb); \ - } - -#define REMOTE_OBJECT(name) (remote_object_t*)&remote_object_##name - -void add_remote_objects(remote_object_t** remote_objects, uint32_t num_remote_objects); -void reinitialize_serial_link_transport(void); -void transport_recv_frame(uint8_t from, uint8_t* data, uint16_t size); -void update_transport(void); diff --git a/quantum/serial_link/protocol/triple_buffered_object.c b/quantum/serial_link/protocol/triple_buffered_object.c deleted file mode 100644 index e0c6d702a5..0000000000 --- a/quantum/serial_link/protocol/triple_buffered_object.c +++ /dev/null @@ -1,77 +0,0 @@ -/* -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/triple_buffered_object.h" -#include "serial_link/system/serial_link.h" -#include <stdbool.h> -#include <stddef.h> - -#define GET_READ_INDEX() object->state & 3 -#define GET_WRITE_INDEX() (object->state >> 2) & 3 -#define GET_SHARED_INDEX() (object->state >> 4) & 3 -#define GET_DATA_AVAILABLE() (object->state >> 6) & 1 - -#define SET_READ_INDEX(i) object->state = ((object->state & ~3) | i) -#define SET_WRITE_INDEX(i) object->state = ((object->state & ~(3 << 2)) | (i << 2)) -#define SET_SHARED_INDEX(i) object->state = ((object->state & ~(3 << 4)) | (i << 4)) -#define SET_DATA_AVAILABLE(i) object->state = ((object->state & ~(1 << 6)) | (i << 6)) - -void triple_buffer_init(triple_buffer_object_t* object) { - object->state = 0; - SET_WRITE_INDEX(0); - SET_READ_INDEX(1); - SET_SHARED_INDEX(2); - SET_DATA_AVAILABLE(0); -} - -void* triple_buffer_read_internal(uint16_t object_size, triple_buffer_object_t* object) { - serial_link_lock(); - if (GET_DATA_AVAILABLE()) { - uint8_t shared_index = GET_SHARED_INDEX(); - uint8_t read_index = GET_READ_INDEX(); - SET_READ_INDEX(shared_index); - SET_SHARED_INDEX(read_index); - SET_DATA_AVAILABLE(false); - serial_link_unlock(); - return object->buffer + object_size * shared_index; - } else { - serial_link_unlock(); - return NULL; - } -} - -void* triple_buffer_begin_write_internal(uint16_t object_size, triple_buffer_object_t* object) { - uint8_t write_index = GET_WRITE_INDEX(); - return object->buffer + object_size * write_index; -} - -void triple_buffer_end_write_internal(triple_buffer_object_t* object) { - serial_link_lock(); - uint8_t shared_index = GET_SHARED_INDEX(); - uint8_t write_index = GET_WRITE_INDEX(); - SET_SHARED_INDEX(write_index); - SET_WRITE_INDEX(shared_index); - SET_DATA_AVAILABLE(true); - serial_link_unlock(); -} diff --git a/quantum/serial_link/protocol/triple_buffered_object.h b/quantum/serial_link/protocol/triple_buffered_object.h deleted file mode 100644 index 717d6d7b8b..0000000000 --- a/quantum/serial_link/protocol/triple_buffered_object.h +++ /dev/null @@ -1,44 +0,0 @@ -/* -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. -*/ - -#pragma once - -#include <stdint.h> - -typedef struct { - uint8_t state; - uint8_t buffer[] __attribute__((aligned(4))); -} triple_buffer_object_t; - -void triple_buffer_init(triple_buffer_object_t* object); - -#define triple_buffer_begin_write(object) (typeof(*object.buffer[0])*)triple_buffer_begin_write_internal(sizeof(*object.buffer[0]), (triple_buffer_object_t*)object) - -#define triple_buffer_end_write(object) triple_buffer_end_write_internal((triple_buffer_object_t*)object) - -#define triple_buffer_read(object) (typeof(*object.buffer[0])*)triple_buffer_read_internal(sizeof(*object.buffer[0]), (triple_buffer_object_t*)object) - -void* triple_buffer_begin_write_internal(uint16_t object_size, triple_buffer_object_t* object); -void triple_buffer_end_write_internal(triple_buffer_object_t* object); -void* triple_buffer_read_internal(uint16_t object_size, triple_buffer_object_t* object); |