mirror of
https://github.com/libretro/Mu.git
synced 2026-09-24 07:35:55 +00:00
Update GPIO map, remove port a from tests, it cant be used when the CPU is in 16 bit mode which Palm OS uses
This commit is contained in:
meepingsnesroms
@@ -1,54 +0,0 @@
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//stuck on timer wait, inside interrupt level 6 handler
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PCR
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TYPE RESET
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Peripheral Control Register 0x(FF)FFF003
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PCR T field could be set to use timer chaining
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CPU wrote 16 bits of 0x00000000 to register 0x60A, PC 0x10083BF0.
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#define kChannelSet1 \
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kChannelTemp0, \
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kChannelPenY, \
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kChannelBattery7846, \
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kChannelUnused, \
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kChannelUnused, \
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kChannelPenX, \
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kChannelDockTwister, \
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kChannelTemp1
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CPU read 8 bits from register 0x0431, PC 0x100815B2.
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CPU read 8 bits from register 0x0420, PC 0x100815B8.
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CPU read 8 bits from register 0x0421, PC 0x100815BE.
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SPI2 transfer, ENABLE:true, XCH:false, IRQ:false, IRQEN:false, BITCOUNT:12 //XCH false, does nothing
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SPI2 transfer, ENABLE:true, XCH:true, IRQ:false, IRQEN:false, BITCOUNT:12
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SPI2 transfer, ENABLE:true, XCH:false, IRQ:false, IRQEN:false, BITCOUNT:5 //XCH false, does nothing
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SPI2 transfer, ENABLE:true, XCH:true, IRQ:false, IRQEN:false, BITCOUNT:5
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SPI2 transfer, ENABLE:true, XCH:false, IRQ:false, IRQEN:false, BITCOUNT:16 //XCH false, does nothing
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SPI2 transfer, ENABLE:true, XCH:true, IRQ:false, IRQEN:false, BITCOUNT:16
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SPI2 transfer, ENABLE:true, XCH:true, IRQ:false, IRQEN:false, BITCOUNT:3
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SPI2 transfer, ENABLE:false, XCH:false, IRQ:false, IRQEN:false, BITCOUNT:1 //XCH false, does nothing
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CPU read 8 bits from register 0x0431, PC 0x10081A04.
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CPU read 8 bits from register 0x0431, PC 0x100815B2.
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CPU read 8 bits from register 0x0420, PC 0x100815B8.
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CPU read 8 bits from register 0x0421, PC 0x100815BE.
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//copilots SPI touch code
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case SPIMCONT:
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db_SPIMCONT.x = value;
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if (db_SPIMCONT.anon.XCH && db_SPIMCONT.anon.IRQEN) {
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db_SPIMCONT.anon.SPIMIRQ = 1;
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db_SPIMCONT.anon.XCH = 0;
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switch (db_PFDATA.x & 0x0f) {
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case 0x6:
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db_SPIMDATA.x = (0xff - CustShptr->penx) * 2;
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break;
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case 0x9:
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db_SPIMDATA.x = (0xff - CustShptr->peny) * 2;
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break;
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}
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}
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break;
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89
gpioMap.txt
89
gpioMap.txt
@@ -1,89 +0,0 @@
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General Layout:
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Port A: D* Data Lines
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Port B: Fixed 0x3F, likely nothing attached, probably used for chip select
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Port C: Usually 0x7F or 0x3F(less common), needs to be investigated further
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Port D: Hardware buttons
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Port E: Always 0x5E or 0x5C, only bit 1 seems used, needs to be investigated further
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Port F: Always 0x9D or 0x9C, only bit 0 seems used, needs to be investigated further
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Port G: 0x15 when backlight is off, 0x17 when its on, bit 1 is a read back of SED1376 GPIO 0 pin 4
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Port J: Fixed 0xB0, needs to be investigated further
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Port K: Fixed 0x04 in testing, used to select Port Ds active matrix line, bit 4 enables the vibrator motor
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Port M: Fixed 0x23, needs to be investigated further
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Pin Mapping(all pins are accounted for, documented or not):
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Port A Pin 0: Data Line 0(can only be used as a GPIO in 8 bit mode)
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Port A Pin 1: Data Line 1(can only be used as a GPIO in 8 bit mode)
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Port A Pin 2: Data Line 2(can only be used as a GPIO in 8 bit mode)
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Port A Pin 3: Data Line 3(can only be used as a GPIO in 8 bit mode)
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Port A Pin 4: Data Line 4(can only be used as a GPIO in 8 bit mode)
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Port A Pin 5: Data Line 5(can only be used as a GPIO in 8 bit mode)
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Port A Pin 6: Data Line 6(can only be used as a GPIO in 8 bit mode)
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Port A Pin 7: Data Line 7(can only be used as a GPIO in 8 bit mode)
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Port B Pin 0: Unknown
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Port B Pin 1: Unknown
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Port B Pin 2: Unknown
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Port B Pin 3: Unknown
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Port B Pin 4: Unknown
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Port B Pin 5: Unknown
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Port B Pin 6: Unknown
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Port B Pin 7: Unknown
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Port C Pin 0: Unknown
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Port C Pin 1: Unknown
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Port C Pin 2: Unknown
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Port C Pin 3: Unknown
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Port C Pin 4: Unknown
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Port C Pin 5: Unknown
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Port C Pin 6: Unknown
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Port C Pin 7: Unknown
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Port D Pin 0: Button Matrix Input Line 0(INT0)(low when button pressed)
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Port D Pin 1: Button Matrix Input Line 1(INT1)(low when button pressed)
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Port D Pin 2: Button Matrix Input Line 2(INT2)(low when button pressed)
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Port D Pin 3: Button Matrix Input Line 3(INT3)(low when button pressed)
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Port D Pin 4: HotSync Cable Button(IRQ1)(low when button pressed)
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Port D Pin 5: SD Card Status(IRQ2)(low when card is inserted)
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Port D Pin 6: Unknown(IRQ3)
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Port D Pin 7: Battery Critical Interrupt(IRQ6)(low when critical)
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Port E Pin 0: SPITXD(used for ADS7846)
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Port E Pin 1: SPIRXD(used for ADS7846)
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Port E Pin 2: SPICLK2(used for ADS7846)
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Port E Pin 3: Unknown
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Port E Pin 4: Unknown
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Port E Pin 5: Unknown
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Port E Pin 6: Unknown
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Port E Pin 7: Unknown
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Port F Pin 0: Unknown
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Port F Pin 1: ADS7846 PENIRQ(low when screen is touched)
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Port F Pin 2: Clock Output(required for SED1376 operation, reads and writes do nothing)
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Port F Pin 3: Address Line 20(must be an address line for 16mb RAM to be addressed)
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Port F Pin 4: Address Line 21(must be an address line for 16mb RAM to be addressed)
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Port F Pin 5: Address Line 22(must be an address line for 16mb RAM to be addressed)
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Port F Pin 6: Address Line 23(must be an address line for 16mb RAM to be addressed)
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Port F Pin 7: Unknown
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Port G Pin 0: Unknown
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Port G Pin 1: Backlight State Read Back(high when backlight on)
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Port G Pin 2: Unknown
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Port G Pin 3: Unknown
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Port G Pin 4: Unknown
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Port G Pin 5: Unknown
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Port J Pin 0: Unknown
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Port J Pin 1: Unknown
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Port J Pin 2: Unknown
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Port J Pin 3: Unknown
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Port J Pin 4: Unknown
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Port J Pin 5: Unknown
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Port J Pin 6: Unknown
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Port J Pin 7: Unknown
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Port K Pin 0: Unknown
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Port K Pin 1: Unknown
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Port K Pin 2: Battery Charging/Docked(low when charging)
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Port K Pin 3: Unknown
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Port K Pin 4: Enable Vibrator Motor(set high to enable)
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Port K Pin 5: Button Matrix Line Select 0(set low to enable line, multiple lines can be enabled at once)
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Port K Pin 6: Button Matrix Line Select 1(set low to enable line, multiple lines can be enabled at once)
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Port K Pin 7: Button Matrix Line Select 2(set low to enable line, multiple lines can be enabled at once)
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Port M Pin 0: Unknown
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Port M Pin 1: Unknown
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Port M Pin 2: Unknown
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Port M Pin 3: Unknown
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Port M Pin 4: Unknown
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Port M Pin 5: Unknown
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@@ -74,9 +74,6 @@ var listDataRegisters(){
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exitSubprogram();
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}
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StrPrintF(sharedDataBuffer, "PADATA:0x%02X", readArbitraryMemory8(HW_REG_ADDR(PADATA)));
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UG_PutString(0, y, sharedDataBuffer);
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y += FONT_HEIGHT + 1;
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StrPrintF(sharedDataBuffer, "PBDATA:0x%02X", readArbitraryMemory8(HW_REG_ADDR(PBDATA)));
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UG_PutString(0, y, sharedDataBuffer);
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y += FONT_HEIGHT + 1;
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@@ -124,9 +121,6 @@ var interrogateSpi2(){
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exitSubprogram();
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}
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StrPrintF(sharedDataBuffer, "PADATA:0x%02X", readArbitraryMemory8(HW_REG_ADDR(PADATA)));
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UG_PutString(0, y, sharedDataBuffer);
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y += FONT_HEIGHT + 1;
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StrPrintF(sharedDataBuffer, "PBDATA:0x%02X", readArbitraryMemory8(HW_REG_ADDR(PBDATA)));
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UG_PutString(0, y, sharedDataBuffer);
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y += FONT_HEIGHT + 1;
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@@ -426,6 +420,28 @@ var toggleMotor(){
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return makeVar(LENGTH_0, TYPE_NULL, 0);
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}
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var toggleAlarmLed(){
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static Boolean firstRun = true;
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if(firstRun){
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firstRun = false;
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debugSafeScreenClear(C_WHITE);
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StrPrintF(sharedDataBuffer, "Select = Toggle Alarm LED");
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UG_PutString(0, 0, sharedDataBuffer);
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}
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if(getButtonPressed(buttonBack)){
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firstRun = true;
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exitSubprogram();
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}
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if(getButtonPressed(buttonSelect)){
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writeArbitraryMemory8(HW_REG_ADDR(PBDATA), readArbitraryMemory8(HW_REG_ADDR(PBDATA)) ^ 0x40);
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}
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return makeVar(LENGTH_0, TYPE_NULL, 0);
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}
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var watchPenIrq(){
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static Boolean firstRun = true;
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@@ -14,6 +14,7 @@ var getDeviceId();
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var getCpuInfo();
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var toggleBacklight();
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var toggleMotor();
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var toggleAlarmLed();
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var watchPenIrq();
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var watchIcr();
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@@ -322,6 +322,10 @@ void resetFunctionViewer(){
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hwTests[totalHwTests].testFunction = toggleMotor;
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totalHwTests++;
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StrNCopy(hwTests[totalHwTests].name, "Toggle Alarm LED", TEST_NAME_LENGTH);
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hwTests[totalHwTests].testFunction = toggleAlarmLed;
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totalHwTests++;
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StrNCopy(hwTests[totalHwTests].name, "Watch PENIRQ", TEST_NAME_LENGTH);
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hwTests[totalHwTests].testFunction = watchPenIrq;
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totalHwTests++;
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@@ -1,6 +1,6 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE QtCreatorProject>
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<!-- Written by QtCreator 4.6.2, 2018-06-18T11:31:16. -->
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<!-- Written by QtCreator 4.6.2, 2018-06-18T13:13:34. -->
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<qtcreator>
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<data>
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<variable>EnvironmentId</variable>
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@@ -30,6 +30,7 @@ static void checkInterrupts();
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static void checkPortDInterrupts();
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static void recalculateCpuSpeed();
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static void pllWakeCpuIfOff();
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static void updateAlarmLedStatus();
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#include "hardwareRegistersAccessors.c.h"
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#include "hardwareRegistersTiming.c.h"
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@@ -48,34 +49,11 @@ bool sed1376ClockConnected(){
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return !(registerArrayRead8(PFSEL) & 0x04) && !(registerArrayRead16(PLLCR) & 0x0010);
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}
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void refreshInputState(){
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//uint16_t icr = registerArrayRead16(ICR);
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//bool penIrqPin = !(ads7846PenIrqEnabled && palmInput.touchscreenTouched);//penIrqPin pulled low on touch
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/*
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//IRQ set as pin function and triggered
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if(!(registerArrayRead8(PFSEL) & 0x02) && penIrqPin == (bool)(icr & 0x0080))
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setIprIsrBit(INT_IRQ5);
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*/
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//IRQ set as pin function and triggered, the pen IRQ triggers when going low to high or high to low
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//if(!(registerArrayRead8(PFSEL) & 0x02) && (penIrqPin == (bool)(icr & 0x0080)) != (bool)(edgeTriggeredInterruptLastValue & INT_IRQ5))
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// setIprIsrBit(INT_IRQ5);
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/*
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if(!(registerArrayRead8(PFSEL) & 0x02)){
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if(penIrqPin == (bool)(icr & 0x0080)){
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if(!(edgeTriggeredInterruptLastValue & INT_IRQ5)){
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setIprIsrBit(INT_IRQ5);
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edgeTriggeredInterruptLastValue |= INT_IRQ5;
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}
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}
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else{
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edgeTriggeredInterruptLastValue &= ~INT_IRQ5;
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}
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}
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*/
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void refreshInputState(){
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//update alarm LED state if palmMisc.batteryCharging changed
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updateAlarmLedStatus();
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//update touchscreen state
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if(!(registerArrayRead8(PFSEL) & 0x02)){
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uint16_t icr = registerArrayRead16(ICR);
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bool penIrqPin = !(ads7846PenIrqEnabled && palmInput.touchscreenTouched);//penIrqPin pulled low on touch
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@@ -99,6 +77,7 @@ void refreshInputState(){
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*/
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}
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//check for button presses and interrupts
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checkPortDInterrupts();//this calls checkInterrupts() so it doesnt need to be called above
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}
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@@ -387,14 +366,15 @@ static void checkPortDInterrupts(){
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checkInterrupts();
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}
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static inline void updateAlarmLedStatus(){
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if(registerArrayRead8(PBDATA) & registerArrayRead8(PBSEL) & registerArrayRead8(PBDIR) & 0x40)
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static void updateAlarmLedStatus(){
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bool pinLineOn = registerArrayRead8(PBDATA) & registerArrayRead8(PBSEL) & registerArrayRead8(PBDIR) & 0x40;
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if(pinLineOn != palmMisc.batteryCharging)
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palmMisc.alarmLed = true;
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else
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palmMisc.alarmLed = false;
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}
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static inline void updateVibratorStatus(){
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static void updateVibratorStatus(){
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if(registerArrayRead8(PKDATA) & registerArrayRead8(PKSEL) & registerArrayRead8(PKDIR) & 0x10)
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palmMisc.vibratorOn = true;
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else
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@@ -166,13 +166,13 @@ static inline void setPllfsr(uint16_t value){
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static inline void setScr(uint8_t value){
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uint8_t oldScr = registerArrayRead8(SCR);
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uint8_t newScr = value;
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uint8_t newScr = value & 0x1F;
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//preserve privilege violation, write protect violation and bus error timeout
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newScr |= oldScr & 0xE0;
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//clear violations on writing 1 to them
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newScr &= ~(oldScr & value & 0xE0);
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newScr &= ~(value & 0xE0);
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chips[CHIP_REGISTERS].supervisorOnlyProtectedMemory = value & 0x08;
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@@ -141,7 +141,7 @@ static inline void timer12Clk32(){
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}
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}
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if(timer1Enabled && timer1OldCount <= timer1Compare && timerCycleCounter[0] >= timer1Compare){
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if(timer1Enabled && timer1OldCount < timer1Compare && timerCycleCounter[0] >= timer1Compare){
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//the comparison against the old value is to prevent an interrupt on every increment in free running mode
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//the timer is not cycle accurate and may not hit the value in the compare register perfectly so check if it would have during in the emulated time
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@@ -158,7 +158,7 @@ static inline void timer12Clk32(){
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timerCycleCounter[0] -= timer1Compare;
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}
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if(timer2Enabled && timer2OldCount <= timer2Compare && timerCycleCounter[1] >= timer2Compare){
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if(timer2Enabled && timer2OldCount < timer2Compare && timerCycleCounter[1] >= timer2Compare){
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//the comparison against the old value is to prevent an interrupt on every increment in free running mode
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//the timer is not cycle accurate and may not hit the value in the compare register perfectly so check if it would have during in the emulated time
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@@ -196,6 +196,8 @@ static inline void timer12Clk32(){
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}
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}
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//if timer chaining causes an interrupt the actual interrupt takes place the next time this function is called
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if(timer1Enabled){
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if(timerCycleCounter[0] > 0xFFFF)
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timerCycleCounter[0] -= 0xFFFF;
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@@ -49,6 +49,7 @@ swivelview register
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Fixed:
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port b pin 6 is xored with the power detection on the alarm/power LED, if docked it turns the LED off, if not docked it turns the LED on
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touch interrupt seems to not use IRQ5(it does, theres a test for it now)
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port d seems to allow using special function pins as inputs while active unlike other ports, this needs to be verified(verified by MC68VZ328UM.pdf Page 10-15)
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CPU_RUN_MODE is not preserved on save state and could allow executing after an address error if a save and load are performed(CPU_RUN_MODE is not used when address error is disabled)
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Reference in New Issue
Block a user