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https://github.com/kalymos/PsNee.git
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465d22166d
Unified BIOS Patching: Merged management for SCPH-5500, 5000, and 3500. New Hardware Bypass: Added a physical switch option for SCPH-7000 to disable the BIOS patch on-the-fly. Compilation Feedback: Integrated #pragma messages to display during the build process. Code Documentation: improved technical clarity.
363 lines
12 KiB
C
363 lines
12 KiB
C
#pragma once
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/*------------------------------------------------------------------------------------------------
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* BIOS PATCH PARAMETERS EXPLANATION
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*
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* 1. SILENCE_THRESHOLD:
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* Defines the size of a polling block where the AX pin must remain LOW.
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* It serves as a "bus address call detector" for specific idle windows.
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*
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* 2. CONFIRM_COUNTER_TARGET:
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* Defines the exact number of SILENCE_THRESHOLD blocks that must be validated
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* consecutively before arming the hardware interrupt (ISR).
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*
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* 3. PULSE_COUNT:
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* The starting value for the 'impulse' down-counter. It counts physical
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* rising edges on the AX pin until it reaches zero to trigger the injection.
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*
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* 4. BIT_OFFSET_CYCLES (Inside ISR):
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* The sub-microsecond delay (CPU cycles) applied after the final pulse to
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* precisely align the DX injection with the target bit in the memory cycle.
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*
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* 5. OVERRIDE_CYCLES (Inside ISR):
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* The duration for which the DX pin is forced to OUTPUT mode to overwrite
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* the original BIOS data with the custom state.
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------------------------------------------------------------------------------------------------*/
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// tested with an Atmega328P
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// ------ SCPH 100 / 102 ------
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#if defined(SCPH_100) || \
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defined(SCPH_102)
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#define BIOS_PATCH
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#define SILENCE_THRESHOLD 1500
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#define CONFIRM_COUNTER_TARGET 8
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#define PULSE_COUNT 48 //47
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#define BIT_OFFSET_CYCLES 47 //60
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#define OVERRIDE_CYCLES 3
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#endif
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// #endif
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// // -------- SCPH 7500 / 9000 --------
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#ifdef SCPH_7500_9000
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#define BIOS_PATCH
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#define SILENCE_THRESHOLD 1500
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#define CONFIRM_COUNTER_TARGET 1
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#define PULSE_COUNT 16 //15
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#define BIT_OFFSET_CYCLES 47 //60
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#define OVERRIDE_CYCLES 3
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#endif
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// -------- SCPH 7000 --------
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#ifdef SCPH_7000
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#define BIOS_PATCH
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#define SILENCE_THRESHOLD 1500
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#define CONFIRM_COUNTER_TARGET 1
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#define PULSE_COUNT 16
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#define BIT_OFFSET_CYCLES 47
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#define OVERRIDE_CYCLES 3
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#endif
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// // ----- SCPH 3500 / 5000 / 5500 -----
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#ifdef SCPH_3500_5500
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#define BIOS_PATCH
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#define SILENCE_THRESHOLD 35600
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#define CONFIRM_COUNTER_TARGET 1
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#define PULSE_COUNT 85 //84
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#define BIT_OFFSET_CYCLES 47 //60
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#define OVERRIDE_CYCLES 3
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#endif
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// // -------- SCPH 3000 --------
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#ifdef SCPH_3000
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#define BIOS_PATCH
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#define INTERRUPT_RISING_HIGH_PATCH
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#define SILENCE_THRESHOLD 1200
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#define CONFIRM_COUNTER_TARGET 9
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#define PULSE_COUNT 60
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#define BIT_OFFSET_CYCLES 46
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#define OVERRIDE_CYCLES 3
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#define SILENCE_THRESHOLD_2 1200
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#define CONFIRM_COUNTER_TARGET_2 206
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#define PULSE_COUNT_2 43
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#define BIT_OFFSET_2_CYCLES 54
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#define OVERRIDE_2_CYCLES 2
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#endif
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// // -------- SCPH 1000 --------
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#ifdef SCPH_1000
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#define BIOS_PATCH
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#define INTERRUPT_RISING_HIGH_PATCH
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#define SILENCE_THRESHOLD 1300
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#define CONFIRM_COUNTER_TARGET 9
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#define PULSE_COUNT 91
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#define BIT_OFFSET_CYCLES 58
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#define OVERRIDE_CYCLES 3
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#define CONFIRM_COUNTER_TARGET_2 222
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#define PULSE_COUNT_2 71
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#define BIT_OFFSET_2_CYCLES 54
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#define OVERRIDE_2_CYCLES 3
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#endif
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/*------------------------------------------------------------------------------------------------
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Region Settings Section
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------------------------------------------------------------------------------------------------*/
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#if defined(SCPH_100) || \
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defined(SCPH_7500_9000) || \
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defined(SCPH_7000) || \
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defined(SCPH_3500_5500) || \
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defined(SCPH_3500) || \
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defined(SCPH_3000) || \
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defined(SCPH_1000) || \
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defined(SCPH_xxx3) || \
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defined(SCPH_5903)
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#define INJECT_SCEx 0 // NTSC-J
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#elif defined(SCPH_xxx1)
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#define INJECT_SCEx 1 // NTSC-U/C
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#elif defined(SCPH_xxx2) || \
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defined(SCPH_102)
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#define INJECT_SCEx 2 // PAL
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#elif defined(SCPH_xxxx)
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#define INJECT_SCEx 3 // Universal: NTSC-J -> NTSC-U/C -> PAL
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#endif
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/*------------------------------------------------------------------------------------------------
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serial debug section
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------------------------------------------------------------------------------------------------*/
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/******************************************************************************************
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* FUNCTION : Debug_Log
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*
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* DESCRIPTION :
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* Transmits hardware status and system configuration via the serial interface.
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* Displays MCU frequency, WFCK detection mode, and active regional settings.
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*
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* - ATtiny: Uses a compact "Short-Code" format to minimize serial bus overhead.
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* - Standard MCUs: Provides verbose, human-readable system diagnostics.
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*
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* INPUT : Wfck_mode (int) - The detected board generation (0: Static, 1: Frequency).
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******************************************************************************************/
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#if defined(PSNEE_DEBUG_SERIAL_MONITOR)
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void Debug_Log (int Wfck_mode){
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#if defined(ATtiny85_45_25)
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// --- COMPACT SYSTEM LOG (ATtiny) ---
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// Minimalistic output to save CPU cycles and maintain timing precision.
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mySerial.print("m ");
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mySerial.println(Wfck_mode); // Mode indicator
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#else
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// --- VERBOSE DIAGNOSTICS (ATmega) ---
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// Detailed system information for standard development and debugging.
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Serial.print(" MCU frequency: ");
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Serial.print(F_CPU);
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Serial.println(" Hz");
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Serial.print(" wfck_mode: ");
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Serial.println(Wfck_mode); // Board generation (0: Legacy, 1: Modern)
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Serial.print(" region: ");
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Serial.print(region[0]);
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Serial.print(region[1]);
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Serial.println(region[2]); // Active injection string (e.g., SCEE)
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#endif
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}
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/******************************************************************************************
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* FUNCTION : LogSUBQ
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*
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* DESCRIPTION :
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* Logs captured SUBQ frames to the serial interface.
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* Timing is critical: the entire 12-byte frame must be processed and transmitted
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* within the ~12ms window before the next SUBQ packet arrives.
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*
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* - ATtiny: Uses minimal formatting (no spaces) to stay within the timing budget.
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* - Standard MCUs: Includes spaces for better readability.
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*
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* INPUT : dataBuffer (uint8_t*) - Pointer to the 12-byte SUBQ frame.
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******************************************************************************************/
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void LogSUBQ(uint8_t *dataBuffer) {
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/**
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* ERROR FILTERING:
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* A failed sector read usually results in zeroed data (excluding CRC).
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* Skip logging if the first 4 bytes are null to reduce bus traffic.
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*/
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if (!(dataBuffer[0] == 0 && dataBuffer[1] == 0 && dataBuffer[2] == 0 && dataBuffer[3] == 0)) {
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#if defined(ATtiny85_45_25)
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// --- COMPACT FORMATTING (ATtiny) ---
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// Minimal formatting to meet the strict 12ms timing constraint on slower MCUs.
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for (uint8_t i = 0; i < 12; i++) {
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if (dataBuffer[i] < 0x10) {
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mySerial.print("0"); // Leading zero padding for hex alignment
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}
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mySerial.print(dataBuffer[i], HEX);
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}
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mySerial.println("");
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#else
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// --- STANDARD FORMATTING (ATmega) ---
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// More descriptive output with space separation for easier debugging.
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for (uint8_t i = 0; i < 12; i++) {
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if (dataBuffer[i] < 0x10) {
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Serial.print("0"); // Leading zero padding
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}
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Serial.print(dataBuffer[i], HEX);
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Serial.print(" ");
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}
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Serial.println("");
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#endif
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}
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}
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/******************************************************************************************
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* FUNCTION : Debug_Inject
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*
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* DESCRIPTION :
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* Provides real-time visual confirmation during SCEx region code injection.
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* Used to verify that the hysteresis threshold has been met and the
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* injection sequence is active.
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*
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* - ATtiny: Prints a single '!' to minimize CPU blocking during the critical
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* injection timing window.
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* - Standard MCUs: Prints a clear, verbose "INJECT !" message.
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******************************************************************************************/
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void DebugInject(){
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#if defined(ATtiny85_45_25)
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// --- MINIMALIST NOTIFICATION (ATtiny) ---
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mySerial.print("!");
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#else
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// --- VERBOSE NOTIFICATION (ATmega) ---
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// Standard visual feedback for debugging and monitoring.
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Serial.println(" INJECT ! ");
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#endif
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}
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#endif
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/*
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* =============================================================
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* COMPILATION CHECKS
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* =============================================================
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*/
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// --- CONSOLE SELECTION CHECK ---
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#if !defined(SCPH_1000) && \
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!defined(SCPH_3000) && \
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!defined(SCPH_3500_5500) && \
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!defined(SCPH_7000) && \
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!defined(SCPH_7500_9000) && \
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!defined(SCPH_100) && \
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!defined(SCPH_101) && \
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!defined(SCPH_102) && \
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!defined(SCPH_xxx1) && \
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!defined(SCPH_xxx2) && \
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!defined(SCPH_xxx3) && \
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!defined(SCPH_5903) && \
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!defined(SCPH_xxxx)
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#error "No console selected! Please uncomment your SCPH model."
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#elif (defined(SCPH_1000) + \
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defined(SCPH_3000) + \
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defined(SCPH_3500_5500) + \
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defined(SCPH_7000) + \
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defined(SCPH_7500_9000) + \
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defined(SCPH_100) + \
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defined(SCPH_101) + \
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defined(SCPH_102) + \
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defined(SCPH_xxx1) + \
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defined(SCPH_xxx2) + \
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defined(SCPH_xxx3) + \
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defined(SCPH_5903) + \
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defined(SCPH_xxxx) > 1)
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#error "Multiple consoles selected! Please enable only one SCPH model."
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#endif
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// --- MCU SELECTION CHECK ---
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#if !defined(ATmega328_168) && \
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!defined(ATmega32U4_16U4) && \
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!defined(ATtiny85_45_25)
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#error "No MCU selected! Please choose one supported architecture."
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#elif (defined(ATmega328_168) + \
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defined(ATmega32U4_16U4) + \
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defined(ATtiny85_45_25) > 1)
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#error "Multiple MCUs selected! Please enable only one architecture."
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#endif
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// --- RESOURCE CONFLICT CHECK (ATtiny) ---
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#if defined(ATtiny85_45_25) && \
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defined(LED_RUN) && \
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defined(PSNEE_DEBUG_SERIAL_MONITOR)
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#error "Resource conflict: LED_RUN and DEBUG_SERIAL are incompatible on ATtiny."
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#endif
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// --- Console Model Info ---
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#if defined(SCPH_1000)
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#pragma message "Target Console: SCPH-1000 (NTSC-J)"
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#elif defined(SCPH_3000)
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#pragma message "Target Console: SCPH-3000 (NTSC-J)"
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#elif defined(SCPH_3500_5500)
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#pragma message "Target Console: SCPH-3500/5000/5500 (NTSC-J)"
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#elif defined(SCPH_7000)
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#pragma message "Target Console: SCPH-7000 (Internal Switch enabled)"
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#elif defined(SCPH_7500_9000)
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#pragma message "Target Console: SCPH-7500/9000 (NTSC-J)"
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#elif defined(SCPH_100)
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#pragma message "Target Console: SCPH-100 (NTSC-J)"
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#elif defined(SCPH_101)
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#pragma message "Target Console: SCPH-101 (NTSC-U/C)"
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#elif defined(SCPH_102)
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#pragma message "Target Console: SCPH-102 (PAL)"
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#elif defined(SCPH_xxx1)
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#pragma message "Target Console: Generic NTSC-U/C"
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#elif defined(SCPH_xxx2)
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#pragma message "Target Console: Generic PAL"
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#elif defined(SCPH_xxx3)
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#pragma message "Target Console: Generic NTSC-J"
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#elif defined(SCPH_5903)
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#pragma message "Target Console: SCPH-5903 (Video CD Dual-Interface)"
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#elif defined(SCPH_xxxx)
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#pragma message "Target Console: Universal Region Mode"
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#endif
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// --- MCU Architecture Info ---
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#if defined(ATmega328_168)
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#pragma message "Microcontroller: ATmega328/168 (Arduino Nano/Uno)"
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#elif defined(ATmega32U4_16U4)
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#pragma message "Microcontroller: ATmega32U4/16U4 (Leonardo/Pro Micro)"
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#elif defined(ATtiny85_45_25)
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#pragma message "Microcontroller: ATtiny85/45/25"
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#endif
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// --- Feature Status ---
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#ifdef PSNEE_DEBUG_SERIAL_MONITOR
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#pragma message "Feature: Serial Debug Monitor ENABLED"
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#endif
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#ifdef LED_RUN
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#pragma message "Feature: Status LED (PB5) ENABLED"
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#endif
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