diff options
Diffstat (limited to 'testhal/STM32/STM32F0xx/onewire/search_rom_synth.c')
-rw-r--r-- | testhal/STM32/STM32F0xx/onewire/search_rom_synth.c | 370 |
1 files changed, 0 insertions, 370 deletions
diff --git a/testhal/STM32/STM32F0xx/onewire/search_rom_synth.c b/testhal/STM32/STM32F0xx/onewire/search_rom_synth.c deleted file mode 100644 index 98f097d..0000000 --- a/testhal/STM32/STM32F0xx/onewire/search_rom_synth.c +++ /dev/null @@ -1,370 +0,0 @@ -/* - ChibiOS/RT - Copyright (C) 2014 Uladzimir Pylinsky aka barthess - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. -*/ - -#include <stdlib.h> - -/* - ****************************************************************************** - * DEFINES - ****************************************************************************** - */ - -/* do not set it more than 64 because of some fill_pattern functions - * will be broken.*/ -#define SYNTH_DEVICES_MAX 64 - -/* - * synthetic device - */ -typedef struct { - bool active; - uint64_t id; -} OWSynthDevice; - -/* - * synthetic bus - */ -typedef struct { - OWSynthDevice devices[SYNTH_DEVICES_MAX]; - size_t dev_present; - bool complement_bit; - uint_fast8_t rom_bit; -} OWSynthBus; - -/* - ****************************************************************************** - * EXTERNS - ****************************************************************************** - */ - -/* - ****************************************************************************** - * PROTOTYPES - ****************************************************************************** - */ - -/* - ****************************************************************************** - * GLOBAL VARIABLES - ****************************************************************************** - */ - -static OWSynthBus synth_bus; - -/* - * local buffer for discovered ROMs - */ -static uint64_t detected_devices[SYNTH_DEVICES_MAX]; - -/* - ****************************************************************************** - ****************************************************************************** - * LOCAL FUNCTIONS - ****************************************************************************** - ****************************************************************************** - */ - -/* - ****************************************************************************** - * EXPORTED FUNCTIONS - ****************************************************************************** - */ - -/** - * - */ -void _synth_ow_write_bit(onewireDriver *owp, uint8_t bit) { - (void)owp; - size_t i; - - for (i=0; i<SYNTH_DEVICES_MAX; i++) { - if (((synth_bus.devices[i].id >> synth_bus.rom_bit) & 1) != bit) { - synth_bus.devices[i].active = false; - } - } - synth_bus.rom_bit++; -} - -/** - * - */ -uint_fast8_t _synth_ow_read_bit(void) { - uint_fast8_t ret = 0xFF; - size_t i; - uint_fast8_t bit; - - for (i=0; i<SYNTH_DEVICES_MAX; i++) { - if (synth_bus.devices[i].active){ - bit = (synth_bus.devices[i].id >> synth_bus.rom_bit) & 1; - if (synth_bus.complement_bit){ - bit ^= 1; - } - if (0xFF == ret) - ret = bit; - else - ret &= bit; - } - } - synth_bus.complement_bit = !synth_bus.complement_bit; - return ret; -} - -/** - * - */ -static void synth_reset_pulse(void){ - size_t i; - - for (i=0; i<synth_bus.dev_present; i++){ - synth_bus.devices[i].active = true; - } -} - -/** - * - */ -static size_t synth_search_rom(onewireDriver *owp, uint8_t *result, size_t max_rom_cnt) { - - size_t i; - - search_clean_start(&owp->search_rom); - - do { - /* initialize buffer to store result */ - if (owp->search_rom.reg.devices_found >= max_rom_cnt) - owp->search_rom.retbuf = result + 8*(max_rom_cnt-1); - else - owp->search_rom.retbuf = result + 8*owp->search_rom.reg.devices_found; - memset(owp->search_rom.retbuf, 0, 8); - - /* clean iteration state */ - search_clean_iteration(&owp->search_rom); - - /**/ - synth_reset_pulse(); - synth_bus.rom_bit = 0; - synth_bus.complement_bit = false; - for (i=0; i<64*3 - 1; i++){ - ow_search_rom_cb(NULL, owp); - } - - if (ONEWIRE_SEARCH_ROM_ERROR != owp->search_rom.reg.result) { - /* store cached result for usage in next iteration */ - memcpy(owp->search_rom.prev_path, owp->search_rom.retbuf, 8); - } - } - while (ONEWIRE_SEARCH_ROM_SUCCESS == owp->search_rom.reg.result); - - /**/ - if (ONEWIRE_SEARCH_ROM_ERROR == owp->search_rom.reg.result) - return 0; - else - return owp->search_rom.reg.devices_found; -} - -/** - * - */ -static void fill_pattern_real_devices(void) { - size_t i; - - for (i=0; i<SYNTH_DEVICES_MAX; i++) - synth_bus.devices[i].active = false; - - synth_bus.devices[0].active = true; - synth_bus.devices[0].id = 0x1d00000567f5ec28; - - synth_bus.devices[1].active = true; - synth_bus.devices[1].id = 0x37000005601abd28; - - synth_bus.devices[2].active = true; - synth_bus.devices[2].id = 0x0f000005677d8328; -} - -/** - * - */ -static void fill_pattern_00(size_t devices, size_t start) { - size_t i; - - for (i=0; i<SYNTH_DEVICES_MAX; i++) - synth_bus.devices[i].active = false; - - for (i=0; i<devices; i++){ - synth_bus.devices[i].active = true; - synth_bus.devices[i].id = (start + i); - } -} - -/** - * - */ -static void fill_pattern_01(size_t devices) { - size_t i; - - for (i=0; i<SYNTH_DEVICES_MAX; i++) - synth_bus.devices[i].active = false; - - for (i=0; i<devices; i++){ - synth_bus.devices[i].active = true; - synth_bus.devices[i].id = (devices - i); - } -} - -/** - * - */ -static void fill_pattern_02(size_t devices) { - size_t i; - - for (i=0; i<SYNTH_DEVICES_MAX; i++) - synth_bus.devices[i].active = false; - - for (i=0; i<devices; i++){ - synth_bus.devices[i].active = true; - synth_bus.devices[i].id = ((uint64_t)1 << i); - } -} - -/** - * - */ -static void fill_pattern_03(size_t devices) { - size_t i; - - for (i=0; i<SYNTH_DEVICES_MAX; i++) - synth_bus.devices[i].active = false; - - for (i=0; i<devices; i++){ - synth_bus.devices[i].active = true; - synth_bus.devices[i].id = ((uint64_t)0x8000000000000000 >> i); - } -} - -/** - * @brief random pattern helper - */ -static bool is_id_uniq(const OWSynthDevice *dev, size_t n, uint64_t id) { - size_t i; - - for (i=0; i<n; i++) { - if (dev[i].id == id) - return false; - } - return true; -} - -/** - * - */ -static void fill_pattern_rand(size_t devices) { - size_t i; - uint64_t new_id; - - for (i=0; i<SYNTH_DEVICES_MAX; i++){ - synth_bus.devices[i].active = false; - synth_bus.devices[i].id = 0; - } - - for (i=0; i<devices; i++) { - do { - new_id = rand(); - new_id = (new_id << 32) | rand(); - } while (true != is_id_uniq(synth_bus.devices, i, new_id)); - - synth_bus.devices[i].id = new_id; - synth_bus.devices[i].active = true; - } -} - -/** - * - */ -static bool check_result(size_t detected) { - - size_t i,j; - bool match = false; - - for (i=0; i<detected; i++){ - match = false; - for (j=0; j<detected; j++){ - if (synth_bus.devices[i].id == detected_devices[j]){ - match = true; - break; - } - } - if (false == match) - return OSAL_FAILED; - } - return OSAL_SUCCESS; -} - -/** - * - */ -void synthSearchRomTest(onewireDriver *owp) { - - size_t detected = 0; - size_t i; - - synth_bus.dev_present = 3; - fill_pattern_real_devices(); - detected = synth_search_rom(owp, (uint8_t *)detected_devices, SYNTH_DEVICES_MAX); - osalDbgCheck(synth_bus.dev_present == detected); - osalDbgCheck(OSAL_SUCCESS == check_result(detected)); - - for (i=1; i<=SYNTH_DEVICES_MAX; i++){ - synth_bus.dev_present = i; - - fill_pattern_00(synth_bus.dev_present, 0); - detected = synth_search_rom(owp, (uint8_t *)detected_devices, SYNTH_DEVICES_MAX); - osalDbgCheck(synth_bus.dev_present == detected); - osalDbgCheck(OSAL_SUCCESS == check_result(detected)); - - fill_pattern_00(synth_bus.dev_present, 1); - detected = synth_search_rom(owp, (uint8_t *)detected_devices, SYNTH_DEVICES_MAX); - osalDbgCheck(synth_bus.dev_present == detected); - osalDbgCheck(OSAL_SUCCESS == check_result(detected)); - - fill_pattern_01(synth_bus.dev_present); - detected = synth_search_rom(owp, (uint8_t *)detected_devices, SYNTH_DEVICES_MAX); - osalDbgCheck(synth_bus.dev_present == detected); - osalDbgCheck(OSAL_SUCCESS == check_result(detected)); - - fill_pattern_02(synth_bus.dev_present); - detected = synth_search_rom(owp, (uint8_t *)detected_devices, SYNTH_DEVICES_MAX); - osalDbgCheck(synth_bus.dev_present == detected); - osalDbgCheck(OSAL_SUCCESS == check_result(detected)); - - fill_pattern_03(synth_bus.dev_present); - detected = synth_search_rom(owp, (uint8_t *)detected_devices, SYNTH_DEVICES_MAX); - osalDbgCheck(synth_bus.dev_present == detected); - osalDbgCheck(OSAL_SUCCESS == check_result(detected)); - } - - i = 0; - while (i < 1000) { - synth_bus.dev_present = 1 + (rand() & 63); - - fill_pattern_rand(synth_bus.dev_present); - detected = synth_search_rom(owp, (uint8_t *)detected_devices, SYNTH_DEVICES_MAX); - osalDbgCheck(synth_bus.dev_present == detected); - osalDbgCheck(OSAL_SUCCESS == check_result(detected)); - i++; - } -} - - |