Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-22 08:22:15 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

chihiro: some information on usb commands for an2131sc (nw)

Browse Source 
an2131sc is used as a usb to serial converter, one of the 2 serial ports can be setup as midi
This commit is contained in:
yz70s 2017-03-22 20:52:05 +01:00
parent 2f5d66e0b9
commit 7758a41022
1 changed files with 48 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
src/mame/drivers/chihiro.cpp
View File

@ -522,6 +522,7 @@ private:
static const uint8_t strdesc1[];
static const uint8_t strdesc2[];
uint8_t *region;
uint8_t midi_rs232;
};
const device_type OHCI_HLEAN2131SC = device_creator<ohci_hlean2131sc_device>;
@ -836,7 +837,7 @@ int ohci_hlean2131qc_device::handle_nonstandard_request(int endpoint, USBSetupPa
// PINSA register, bits 0-2 connected do dip switches 1-3 on filter board, bit 4 to dip switch 4, bit 5 to dip switch 5, bits 6-7 to buttons 1-2 on filter board
// bits 4-1 value must be 10 xor 15, and bit 3 is ignored since its used as the CS pin of the chip
endpoints[endpoint].buffer[1] = 0x4b;
// PINSB register, bits 5-7 connected to 3 leds not mounted on pcb, bit 4 connected to re/de pins of max485, bits 2-3 used as uart pins, bit 0-1 give the status of the sense pin of the jvs connector
// PINSB register, bits 5-7 connected to 3 leds not mounted on pcb, bit 4 connected to re/de pins of max485, bits 2-3 used as uart pins, bits 0-1 give the status of the sense pin of the jvs connector
// if bits 0-1 are 11, the not all the connected jvs devices have been assigned an address yet
endpoints[endpoint].buffer[2] = 0x52 | sense;
// OUTB register
@ -1094,6 +1095,7 @@ ohci_hlean2131sc_device::ohci_hlean2131sc_device(const machine_config &mconfig,
ohci_function_device()
{
region = nullptr;
midi_rs232 = 0;
}
void ohci_hlean2131sc_device::set_region_base(uint8_t *data)
@ -1121,24 +1123,29 @@ void ohci_hlean2131sc_device::initialize(running_machine &machine, ohci_usb_cont
int ohci_hlean2131sc_device::handle_nonstandard_request(int endpoint, USBSetupPacket *setup)
{
//#ifdef VERBOSE_MSG
#ifdef VERBOSE_MSG
printf("Control request to an2131sc: %x %x %x %x %x %x %x\n\r", endpoint, endpoints[endpoint].controldirection, setup->bmRequestType, setup->bRequest, setup->wValue, setup->wIndex, setup->wLength);
//#endif
#endif
if (endpoint != 0)
return -1;
// default valuse for data stage
for (int n = 0; n < setup->wLength; n++)
endpoints[endpoint].buffer[n] = 0x50 ^ n;
endpoints[endpoint].buffer[1] = 0;
// PINSB register, bits 0-1 uset as rts/cts signals for uart0, bits 2-3 used as uart1, bits 5-7 used as leds (not mounted on pcb)
endpoints[endpoint].buffer[2] = 0x52; // PINSB
// OUTB register
endpoints[endpoint].buffer[3] = 0x53; // OUTB
endpoints[endpoint].buffer[4] = 0;
endpoints[endpoint].buffer[5] = 0;
endpoints[endpoint].buffer[6] = 0x56; // PINSC
endpoints[endpoint].buffer[7] = 0x57; // OUTC
// PINSC register, bit 7 selects default value for bit 6 after reset (connected to dip switch 5 on filter board), bits 0-1 used as uart0 pins
endpoints[endpoint].buffer[6] = 0x56;
// OUTC register, bit 6 specifies if uart1 should be connected to midi or rs232
endpoints[endpoint].buffer[7] = 0x57;
// bRequest is a command value
if (setup->bRequest == 0x16)
{
// this command is used to read data from the first i2c serial eeprom connected to the chip
// this command is used to read data from the i2c serial eeprom connected to the chip
// setup->wValue = start address to read from
// setup->wIndex = number of bytes to read
// data will be transferred to the host using endpoint 1 (IN)
@ -1148,19 +1155,25 @@ int ohci_hlean2131sc_device::handle_nonstandard_request(int endpoint, USBSetupPa
}
else if (setup->bRequest == 0x17)
{
endpoints[endpoint].buffer[0] = 0x99;
endpoints[endpoint].buffer[0] = 0x90;
}
else if (setup->bRequest == 0x1a)
{
// used to get data received by uart0 data transferred with endpoint 2 (IN)
endpoints[endpoint].buffer[0] = 0x99;
}
else if (setup->bRequest == 0x1b)
{
// used to get data received by uart 1 data transferred with endpoint 3 (IN)
// setup->wIndex = number of bytes host would like to retrieve (must be lower than 256, 0 means get all available)
endpoints[endpoint].buffer[0] = 0; //
endpoints[endpoint].buffer[1] = 0; // bit 0 in buffer overflow bit 1 in parity error
endpoints[endpoint].buffer[4] = 0x40 & 255; // how many bytes to transfer with endpoint 3
endpoints[endpoint].buffer[5] = (0x40 >> 8) & 255;
}
else if (setup->bRequest == 0x1d)
{
// this command is used to write data to the first i2c serial eeprom connected to the chip
// this command is used to write data to the i2c serial eeprom connected to the chip
// no more than 32 bytes can be written at a time
// setup->wValue = start address to write to
// setup->wIndex = number of bytes to write
@ -1169,14 +1182,16 @@ int ohci_hlean2131sc_device::handle_nonstandard_request(int endpoint, USBSetupPa
}
else if (setup->bRequest == 0x1e)
{
endpoints[endpoint].buffer[0] = 0x99;
endpoints[endpoint].buffer[0] = 0x90;
}
else if (setup->bRequest == 0x22)
{
// send data to be output from uart0
endpoints[endpoint].buffer[0] = 0x99;
}
else if (setup->bRequest == 0x23)
{
// send data to be output from uart1
endpoints[endpoint].buffer[0] = 0x99;
}
else if (setup->bRequest == 0x25) //
@ -1185,6 +1200,7 @@ int ohci_hlean2131sc_device::handle_nonstandard_request(int endpoint, USBSetupPa
}
else if (setup->bRequest == 0x26) //
{
// set uart0 or uart1 mode
endpoints[endpoint].buffer[0] = 0x99;
}
else if (setup->bRequest == 0x27) //
@ -1213,23 +1229,41 @@ int ohci_hlean2131sc_device::handle_nonstandard_request(int endpoint, USBSetupPa
}
else if (setup->bRequest == 0x2d)
{
// set pin 1 of PORTB, used as the RTS signal of the rs232 port implemented with uart0
endpoints[endpoint].buffer[0] = 0x99;
}
else if (setup->bRequest == 0x2e) //
else if (setup->bRequest == 0x2e)
{
endpoints[endpoint].buffer[0] = 0x99;
// switches uart1 between rs232 mode and midi mode
// low byte of wValue sets the mode: 0 mode is selected using pin 7 of PORTC (0 midi 1 rs232), 1 rs232, 2 midi, other values no mode change
endpoints[endpoint].buffer[0] = 0;
midi_rs232 = setup->wValue & 255;
}
else if (setup->bRequest == 0x2f)
{
endpoints[endpoint].buffer[0] = 0x99;
// return low byte of wValue from command 0x2e
endpoints[endpoint].buffer[0] = 0;
endpoints[endpoint].buffer[4] = midi_rs232;
}
else if (setup->bRequest == 0x30)
{
endpoints[endpoint].buffer[0] = 0x99;
// this command first disables external interrupt 0 if the lower 8 bits of setup->wValue are 0
// or enables it if those bits, seen as a signed 8 bit value, represent a number greater than 0
// then it will return in byte 4 of the data stage the value 0 if external interrupt 0 has been disabled or value 1 if it has been enabled
// and in byte 5 the value of an 8 bit counter that is incremented at every external interrupt 0
endpoints[endpoint].buffer[0] = 0;
if ((setup->wValue & 255) == 0)
endpoints[endpoint].buffer[4] = 0;
else if ((setup->wValue & 255) < 128)
endpoints[endpoint].buffer[4] = 1;
endpoints[endpoint].buffer[5] = 0;
}
else if (setup->bRequest == 0x31)
{
endpoints[endpoint].buffer[0] = 0x99;
// set pins 4-7 of PORTB
// bits 4-7 of wValue & 255 set the direction
// bits 4-7 of wValue >> 8 set the level
endpoints[endpoint].buffer[0] = 0;
} else
endpoints[endpoint].buffer[0] = 0x99; // usnupported command