Mercurial > public > hwos_code
view src/start.asm @ 634:4050675965ea
3.10 stable release
author | heinrichsweikamp |
---|---|
date | Tue, 28 Apr 2020 17:34:31 +0200 |
parents | 690c48db7b5b |
children | 8c1f1f334275 |
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;============================================================================= ; ; File start.asm * combined next generation V3.09.5 ; ; Startup subroutines ; ; Copyright (c) 2011, JD Gascuel, HeinrichsWeikamp, all right reserved. ;============================================================================= ; HISTORY ; 2011-08-06 : [mH] moving from OSTC code #include "hwos.inc" ; mandatory header #include "ms5541.inc" #include "shared_definitions.h" ; mailbox from/to p2_deco.c #include "eeprom_rs232.inc" #include "math.inc" #include "tft.inc" #include "surfmode.inc" #include "wait.inc" #include "rtc.inc" #include "external_flash.inc" #include "strings.inc" #include "tft_outputs.inc" #include "adc_lightsensor.inc" #include "i2c.inc" #include "divemode.inc" #include "rx_ops.inc" extern init_ostc extern backup_flash_page extern eeprom_deco_data_read extern option_restore_and_check_all extern option_restore_and_check extern option_check_and_store_all extern option_check_and_store extern option_reset extern rtc_init extern new_battery_select extern get_battery_data extern use_old_prior_209 extern get_first_gas_to_WREG extern oFirmwareMajor extern oFirmwareMinor extern oPressureAdjust IFDEF _ccr_pscr extern option_cleanup_oCCRMode_pSCR extern option_cleanup_oCCRMode_CCR extern get_first_dil_to_WREG ENDIF IFDEF _rx_functions extern option_cleanup_oTrMode_CCR extern option_cleanup_oTrMode_no_CCR ENDIF IFDEF _rx_update extern rx_firmware_new_major extern rx_firmware_new_minor extern dyn_show_firmware_rx ENDIF ;============================================================================= ; Reset Vector: Entry Point on Device Wake-up and hard Reset ; reset_v CODE 0x00000 goto 0x1FF00 ; jump to bootloader start_v CODE 0x00004 ; jump to application (cold-)start goto start ; ;============================================================================= ;============================================================================= ; Firmware Identification ; fingerprint CODE 0x0000A db fw_version_major, fw_version_minor ; major, minor db fw_version_beta, FW_ID ; beta/release, firmware ID db firmware_creation_year, firmware_creation_month ; creation year, month db firmware_creation_day, FW_CONF ; creation day, firmware configuration db 0x00, 0x00 ; reserved for future use db 0x00, 0x00 ; reserved for future use db 0x00, 0x00 ; reserved for future use ; ;============================================================================= ;============================================================================= boot1 CODE ;============================================================================= ;----------------------------------------------------------------------------- ; ; Entry Point after cold Start ; global start start: ; clear RAM banks 0-14 lfsr FSR0,0x000 ; load start address into FSR0 movlw 0x0F ; load end address into WREG (actually its high byte) start_clear_rambank: clrf POSTINC0 ; clear memory location and increment FSR0 cpfseq FSR0H ; has FSR0 reached begin of bank 15, i.e. banks 0-14 done? bra start_clear_rambank ; NO - loop ; initialize averaging for analog buttons before IRQ gets enabled movlw .16 ; set averaging span movff WREG,analog_counter ; write to counter (in bank isr_backup) ; initialize hardware (ports, timers) and start interrupts call init_ostc ; also selects bank common and sets CPU to normal speed ; flag that later restart origins from a cold start bsf cold_start ; get button type from bootloader info bsf analog_switches ; assume analog buttons by default movlw 0x7C ; set up read from 0x01F77C movwf TBLPTRL ; ... movlw 0xF7 ; ... movwf TBLPTRH ; ... movlw 0x01 ; ... movwf TBLPTRU ; ... TBLRD*+ ; read configuration byte movlw 0x07 ; coding for analog buttons cpfseq TABLAT ; equal? bcf analog_switches ; NO - no analog buttons ; get screen type (2) from bootloader info bsf screen_type2 ; set flags for later clear of the false one bsf screen_type3 ; ... movlw 0x80 ; set up read from 0x01F780 movwf TBLPTRL ; ... ;movlw 0xF7 ; high and upper are still at 0x01F7xx ;movwf TBLPTRH ; ... ;movlw 0x01 ; ... ;movwf TBLPTRU ; ... TBLRD*+ ; read configuration byte movlw 0x83 ; coding for screen type 2 cpfseq TABLAT ; equal? bcf screen_type2 ; NO - not screen type 2 movlw 0x84 ; coding for screen type 3 cpfseq TABLAT ; equal? bcf screen_type3 ; NO - not screen type 3 ; get button polarity from configuration data (EEPROM) EEPROM_CC_READ eeprom_button_polarity,button_polarity ; initialize pressure sensor calibration call get_calibration_data ; get calibration data from pressure sensor call TFT_DisplayOff ; turn off display bsf LEDr ; turn on red LED ; wait for valid temperature and pressure WAITS .3 ; wait 3 seconds ; sensor calibration completed, first valid pressure value is available bcf LEDr ; turn off red LED ; initial loading of the surface pressure into the ISR ; needs to be done twice in order to shift the current absolute pressure through ; the sampling buffer into the reference buffer from where it is loaded by the ISR call sample_surface_pressure ; 1st pass call sample_surface_pressure ; 2nd pass ; wait until initial surface pressure value has been loaded into the ISR btfsc update_surface_pressure ; has the ISR confirmed loading of the surface pressure? bra $-2 ; NO - not yet, loop until ISR has confirmed loading ; reset all tissue pressures to surface pressure equilibrium state by default call deco_clear_tissue ; (C-code) banksel common ; back to bank common ; restore deco status from EEPROM (if possible) EEPROM_CC_READ eeprom_deco_data_validity,WREG ; read deco data validity xorlw DECO_DATA_VALID_TOKEN ; deco data valid? bnz start_clean ; NO - start "clean" EEPROM_CC_READ eeprom_deco_data_version,WREG ; YES - read deco data format version xorlw eeprom_vault_version ; - deco data format compatible? bnz start_clean ; NO - start "clean" call eeprom_deco_data_read ; YES - restore deco data from EEPROM bra start_common ; - continue with common part start_clean: bsf reset_surface_interval ; request ISR to reset the surface interval timer btfss RCON,POR ; was there a power outage ? call rtc_init ; YES - initialize RTC to firmware creation date start_common: ; check for power-on reset btfsc RCON,POR ; was this a power-on reset? call use_old_prior_209 ; NO - migrate the last battery status from firmware 2.09 or earlier bcf use_old_batt_flag ; default to no reload of last battery data btfsc RCON,POR ; was this a power-on reset? bsf use_old_batt_flag ; NO - reload last battery data call lt2942_get_status ; check for gauge IC btfss battery_gauge_available ; cR or 2 hardware? bra start_check_new_firmware ; NO - skip next movlw .30 ; YES - load default button sensitivity movff WREG,opt_cR_button_right ; - set default for left button movff WREG,opt_cR_button_left ; - set default for right button call piezo_config ; - configure buttons, 1st pass call piezo_config ; - configure buttons, 2nd pass start_check_new_firmware: call TFT_boot ; initialize TFT (includes clear screen & backlight switch-off) ; show heinrichsweikamp logo WIN_TOP .40 WIN_LEFT .10 TFT_WRITE_PROM_IMAGE_BY_ADDR hw_logo_block ; check if a new firmware was loaded lfsr FSR0,oFirmwareMajor ; address firmware version call option_restore_and_check ; read firmware version, major call option_restore_and_check ; read firmware version, minor call option_restore_and_check ; read firmware version, beta movff opt_fw_version_major,WREG ; get stored major version xorlw fw_version_major ; compare with currently active version, equal? bnz start_check_new_firmware_new ; NO - a new firmware was loaded movff opt_fw_version_minor,WREG ; get stored minor version xorlw fw_version_minor ; compare with currently active version, equal? bnz start_check_new_firmware_new ; NO - a new firmware was loaded movff opt_fw_version_beta,WREG ; get stored beta version xorlw fw_version_beta ; compare with currently active version, equal? bnz start_check_new_firmware_new ; NO - a new firmware was loaded ;bz start_check_new_firmware_old ; YES - same firmware as before start_check_new_firmware_old: call TFT_message_fw_kept ; show firmware is kept message bra start_check_new_firmware_common ; continue with common part start_check_new_firmware_new: call TFT_message_fw_update ; show firmware is updated message ; ; reset the pressure sensor correction to factory default ; lfsr FSR0,oPressureAdjust ; address pressure sensor correction ; call option_reset ; set correction to default ; ; lfsr FSR0,oPressureAdjust ; address pressure sensor correction ; call option_check_and_store ; update correction in EEPROM start_check_new_firmware_common: call TFT_Display_FadeIn ; display resulting screen call backup_flash_page ; back-up the first 128 bytes from program flash memory to EEPROM call option_restore_and_check_all ; restore all option values from EEPROM and check them WAITS .5 ; wait 5 second goto restart ; proceed with restart ;============================================================================= boot2 CODE ;============================================================================= ;----------------------------------------------------------------------------- ; Sample and store the current Surface Pressure ; Update ISR and Deco Engine with Pressure sampled on last Invocation ; global sample_surface_pressure sample_surface_pressure: ; make sure the ISR does not read the surface pressure reference buffer while it is updated bcf update_surface_pressure ; cancel any pending load request ; propagate the surface pressure sampled on last invocation to the reference pressure buffer MOVII pressure_abs_sampled,pressure_abs_ref ; update surface pressure in the ISR bsf update_surface_pressure ; request ISR to update its surface pressure ; update surface pressure in the deco engine MOVII pressure_abs_ref,int_I_pres_surface ; sample current absolute pressure (ISR-safe 2 byte copy) SMOVII pressure_abs,pressure_abs_sampled ; limit sampled pressure to max allowed surface pressure MOVLI max_surfpressure, sub_a ; load upper limit into sub_a MOVII pressure_abs_sampled,sub_b ; copy sampled pressure to sub_b call cmpU16 ; sub_a - sub_b = max_surfpressure - pressure_abs_sampled btfss neg_flag ; sampled pressure > max_surfpressure ? return ; NO - below limit, done MOVII sub_a,pressure_abs_sampled ; YES - limit to max_surfpressure (still stored in sub_a) return ; - done ;============================================================================= boot3 CODE ;============================================================================= ;----------------------------------------------------------------------------- ; Entry Point for warm Start ; ; called on leaving sleep mode, surface menu, communication mode, and ; when a start of a dive is detected in all modes except surface mode ; global restart restart: ; for safety purpose only banksel common ; select bank common clrf STKPTR ; clear return addresses stack call request_speed_normal ; request CPU speed change to normal speed ; switch off backlight clrf CCP1CON ; stop PWM bcf PORTC,2 ; pull PWM out to GND bsf tft_is_dimming ; ignore ambient sensor ; clear flag groups clrf HW_descriptor ; hardware - OSTC model descriptor clrf HW_flags_state1 ; hardware - states ; ; DO NOT clear HW_flags_state2 ! clrf DM_flags_sensor ; hardware - O2 sensors clrf OS_flags_ISR1 ; operating system - ISR control 1 clrf OS_flags_ISR2 ; operating system - ISR control 2 clrf eventbase ; event triggers generated by ISR clrf DM_flags_deco ; dive deco modes clrf MS_flags_control ; menu system - control clrf MS_flags_imprint ; menu system - data imprinting clrf CVT_flags1 ; control of numerical outputs 1 clrf CVT_flags2 ; control of numerical outputs 2 ; configure the OSTC model descriptor (stored in HW_descriptor) bcf tft_power ; inverted, here needed for I2C_probe_OSTC_rx, to wake-up RX circuity bsf ambient_sensor ; set ambient light sensor as available by default bsf ext_input_optical ; set optical input as available by default call lt2942_get_status ; check for gauge IC btfss battery_gauge_available ; OSTC 2, cR or TR? bra restart2 ; NO ; OSTC 2, cR or TR call lt2942_init ; initialize battery gauge IC bcf ext_input_optical ; OSTC 2, cR and TR do not have an optical input banksel ANCON0 ; ANCON0 is outside access RAM bcf ANCON0,7 ; AN7 digital input banksel common ; back to bank common bcf lightsen_power ; power-down ambient light sensor bcf ambient_sensor ; no ambient light sensor by default nop btfss PORTF,2 ; ambient light sensor available? bsf ambient_sensor ; YES banksel ANCON0 ; ANCON0 is outside access RAM bsf ANCON0,7 ; AN7 analog again banksel common ; back to bank common bsf lightsen_power ; power-up ambient light sensor again restart2: IFNDEF _hwos_sport btfsc vusb_in ; USB power detected? bra restart3 ; YES - no BT then bcf PORTE,0 ; NO - power up BT chip (if available) WAITMS d'5' ; - wait 5 ms btfss vusb_in ; - BT chip detected? bra restart3 ; NO - no BT then ENDIF bsf ble_available ; YES - BT available restart3: bsf PORTE,0 ; power down BT chip btfsc ble_available ; BT available? bra restart4 ; YES - can't be a cR then btfss battery_gauge_available ; NO - rechargeable? bra restart4 ; NO - can't be a cR bsf ext_input_s8_ana ; YES - it's a cR, S8/analog sensor input available restart4: bsf lv_core ; default to low voltage core movlw 0x80 ; point to 0x1F780 movwf TBLPTRL ; ... movlw 0xF7 ; ... movwf TBLPTRH ; ... movlw 0x01 ; ... movwf TBLPTRU ; ... TBLRD*+ ; read from 0x1F780 movlw 0x83 ; coding for low voltage core, part 1 cpfseq TABLAT ; equal? bra restart4a ; NO - no low voltage core then movlw 0x81 ; YES - point to 0x1F781 movwf TBLPTRL ; - ... TBLRD*+ ; - read from 0x1F781 movlw 0x94 ; - coding for low voltage core, part 2 cpfseq TABLAT ; - equal? restart4a: bcf lv_core ; NO - no low voltage core then ; OSTC sport 2019 hardware does not have an optical input btfsc lv_core ; low voltage core? bcf ext_input_optical ; YES - no optical input available ; check FLASH for block-write capability bsf flash_block_write ; default to block-write capability available call ext_flash_read_jedec ; read JEDEC IDs movlw 0x26 ; device type 26h supports block-write cpfseq hi ; dive type = 26h ? bcf flash_block_write ; NO - revoke capability IFDEF _rx_functions ; set TR functions as deactivated by default bcf tr_functions_activated ; clear flag ; search for TR module WAITMS .200 ; wait 200 ms while RX module boots up call I2C_probe_OSTC_rx ; check for RX module and set ostc_rx_present flag if found btfss ostc_rx_present ; RX module detected? bra restart5 ; NO IFDEF _rx_update ; check if TR module firmware is up to date movff rx_firmware_cur_major,hi ; copy current firmware on RX module to bank common, major movff rx_firmware_cur_minor,lo ; copy current firmware on RX module to bank common, minor call rx_firmware_new_major ; get latest firmware version into WREG, major cpfseq hi ; equal to current firmware on RX module, major ? bra restart4b ; NO - update call rx_firmware_new_minor ; YES - get latest firmware version into WREG, minor cpfseq lo ; - equal to current firmware on RX module, minor ? bra restart4b ; NO - update TR module bra restart4e ; YES - no need to update restart4b: ; print TR module update message call TFT_boot ; initialize TFT (includes clear screen & backlight switch-off) WIN_TOP .40 ; set position WIN_LEFT .10 ; ... TFT_WRITE_PROM_IMAGE_BY_ADDR hw_logo_block ; show heinrichsweikamp logo WIN_SMALL .10,.130 ; set position STRCAT_PRINT "Updating TR Module..." ; print update message call TFT_Display_FadeIn ; dimm up backlight to show outputs ; update firmware in RX module call I2C_sleep_compass ; stop compass call update_tr_module ; update TR module WIN_SMALL .10,.160 ; set next output position STRCAT "Update " ; common part of result message btfss ostc_rx_present ; data transfer successful and TR module up & running again? bra restart4c ; NO STRCAT "to " ; YES - print success message call dyn_show_firmware_rx ; - print installed version STRCAT_PRINT " done" ; - complete result message bra restart4d ; - show message for a while restart4c: STRCAT_PRINT "failed" ; complete result message - failure restart4d: WAITS .3 ; wait 3 seconds ENDIF ; _rx_update restart4e: btfss ostc_rx_present ; TR module up & running? bra restart5 ; NO movff opt_TR_mode,WREG ; YES - get TR mode tstfsz WREG ; - TR mode <> off ? bsf tr_functions_activated ; YES - set TR functions as activated ENDIF ; _rx_functions restart5: ; manage hardware btfss ext_input_s8_ana ; OSTC with S8/analog input? bsf TRISB,3 ; NO - shut down power supply for S8 bulkhead btfss battery_gauge_available ; OSTC with gauge IC? bsf TRISG,0 ; NO call ext_flash_disable_protection ; disable write protection for external flash btfsc use_old_batt_flag ; shall reload last battery data? call get_battery_data ; YES - get last battery data ; check if option values have changed and thus if the EEPROM needs to be updated btfsc option_changed ; do the options need to be stored to EEPROM ? call option_check_and_store_all ; YES - check and store all option values in EEPROM ; set screen orientation bcf flip_screen ; disable upside-down orientation by default TSTOSC opt_flip_screen ; shall show screen outputs upside down? (=1: flip the screen) bsf flip_screen ; YES - enable upside-down orientation ; check if high-altitude mode is applicable bcf high_altitude_mode ; disable high altitude mode by default MOVII pressure_abs_ref, sub_a ; copy last surface pressure to sub_a MOVLI high_altitude_threshold+1,sub_b ; copy high-altitude threshold (880 mbar) + 1 to sub_a call cmpU16 ; sub_a - sub_b = pressure_abs_ref - (high_altitude_threshold + 1) btfsc neg_flag ; result negative (absolute pressure <= 880 mbar) ? bsf high_altitude_mode ; YES - enable high altitude mode ; check if there was a cold start, if yes do initial computation of further deco data btfss cold_start ; did a cold start? bra restart6 ; NO bcf cold_start ; YES - clear flag call deco_calc_dive_interval_1min ; - calculate tissues for 1 minute at surface conditions (C-code) call deco_calc_desaturation_time ; - calculate desaturation and no-fly/no-altitude time (C-code) banksel common ; - back to bank common restart6: call TFT_load_std_color_pallet ; load standard color pallet btfsc divemode ; shall enter dive mode? goto diveloop ; YES - enter dive mode btfsc RCON,POR ; NO - was this a power-on reset? goto surfloop ; NO - enter surface mode bsf RCON,POR ; YES - acknowledge detection and re-arm detector goto new_battery_select ; - prompt for battery selection, will proceed to surface mode ;============================================================================= boot4 CODE ;============================================================================= ;----------------------------------------------------------------------------- ; Setup of all Flags and Parameters for Dive Mode and Simulator Computations ; ; called from divemode.asm, menu_tree.asm and surfmode.asm ; global restart_set_modes_and_flags restart_set_modes_and_flags: call disable_ir_s8_analog ; switch off IR/S8/analog interface by default (for all compile versions!) IFDEF _external_sensor WAITMS d'100' ; wait 100 ms to S8-HUD powered down properly ENDIF ; setup sampling rate for dice data recording movlw .2 ; default to 2 seconds TSTOSC opt_sampling_rate ; check option: 0= 2s, 1= 10s movlw .10 ; 1 - change to 10 seconds movwf sampling_rate ; store selection ; clear all deco mode flags clrf DM_flags_deco ; initialize active_gas and active_dil for surface mode pressure display call get_first_gas_to_WREG movwf active_gas IFDEF _ccr_pscr call get_first_dil_to_WREG movwf active_dil ENDIF ; configure saturation / desaturation safety factors movff opt_sat_multiplier_gf, char_I_saturation_multiplier ; use factors for GF mode by default movff opt_desat_multiplier_gf,char_I_desaturation_multiplier ; ... TSTOSC char_I_model ; get deco model ZH-L16-GF (1) selected? bra restart_set_modes_and_flags2 ; YES - keep them movff opt_sat_multiplier_non_gf, char_I_saturation_multiplier ; NO - overwrite them with non-GF factors movff opt_desat_multiplier_non_gf,char_I_desaturation_multiplier ; - ... restart_set_modes_and_flags2: ; configure GF settings, GF high is needed for color-coding the current GF (supersaturation) factor movff opt_GF_low, char_I_GF_Low_percentage movff opt_GF_high,char_I_GF_High_percentage ; dive mode specific setup movff opt_dive_mode,lo ; get dive mode: 0= OC, 1= CCR, 2= gauge, 3= apnea, 4= pSCR tstfsz lo ; OC? bra restart_set_modes_and_flags3 ; NO bsf FLAG_oc_mode ; YES - set OC flag IFDEF _rx_functions call option_cleanup_oTrMode_no_CCR ; - revert TR mode from 'CCR Dil+O2' to 'on' ENDIF return ; - done restart_set_modes_and_flags3: decfsz lo,F ; CCR mode? bra restart_set_modes_and_flags4 ; NO IFDEF _ccr_pscr bsf FLAG_ccr_mode ; YES - set CCR flag call option_cleanup_oCCRMode_CCR ; - revert CCR mode 'Sensor' to 'fixed SP' if no sensor interface available IFDEF _rx_functions call option_cleanup_oTrMode_CCR ; - revert TR mode from 'ind.double' to 'on' ENDIF ; _rx_functions IFDEF _external_sensor call enable_ir_s8_analog ; - enable IR/S8/analog interface ENDIF ; _external_sensor ENDIF ; _ccr_pscr return ; - done restart_set_modes_and_flags4: decfsz lo,F ; Gauge mode? bra restart_set_modes_and_flags5 ; NO bsf FLAG_gauge_mode ; YES - set gauge flag IFDEF _rx_functions call option_cleanup_oTrMode_no_CCR ; - revert TR mode from 'CCR Dil+O2' to 'on' ENDIF return ; - done restart_set_modes_and_flags5: decfsz lo,F ; Apnea mode? bra restart_set_modes_and_flags6 ; NO bsf FLAG_apnoe_mode ; YES - set apnea flag movlw samplingrate_apnoe ; - get apnoe sampling rate movwf sampling_rate ; - overwrite user-selected 2/10 seconds setting with apnoe default IFDEF _rx_functions call option_cleanup_oTrMode_no_CCR ; - revert TR mode from 'CCR Dil+O2' to 'on' ENDIF return ; - done restart_set_modes_and_flags6: ; pSCR mode then IFDEF _ccr_pscr bsf FLAG_pscr_mode ; - set pSCR mode flag call option_cleanup_oCCRMode_pSCR ; - revert AutoSP to calculated SP, additionally revert Sensor to fixed SP if no sensor interface available IFDEF _rx_functions call option_cleanup_oTrMode_no_CCR ; - revert TR mode from 'CCR Dil+O2' to 'on' ENDIF ; _rx_functions IFDEF _external_sensor call enable_ir_s8_analog ; - enable IR/S8/analog interface ENDIF ; _external_sensor ENDIF ; _ccr_pscr return ; - done ;----------------------------------------------------------------------------- END