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chihiro.cpp: prepare to use jvs packets (nw)

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This commit is contained in:
yz70s 2016-07-10 09:08:17 +02:00
parent 7f71a499d9
commit 496fa2d50e
1 changed files with 78 additions and 9 deletions
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87
src/mame/drivers/chihiro.cpp
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@ -417,6 +417,14 @@ private:
static const UINT8 strdesc2[];
int maximum_send;
UINT8 *region;
struct
{
UINT8 buffer_in[32768];
int buffer_in_expected;
UINT8 buffer_out[32768];
int buffer_out_used;
int buffer_out_packets;
} jvs;
};
const device_type OHCI_HLEAN2131QC = &device_creator<ohci_hlean2131qc_device>;
@ -696,6 +704,9 @@ ohci_hlean2131qc_device::ohci_hlean2131qc_device(const machine_config &mconfig,
{
maximum_send = 0;
region = nullptr;
jvs.buffer_in_expected = 0;
jvs.buffer_out_used = 0;
jvs.buffer_out_packets = 0;
}
void ohci_hlean2131qc_device::initialize(running_machine &machine, ohci_usb_controller *usb_bus_manager)
@ -771,7 +782,6 @@ int ohci_hlean2131qc_device::handle_nonstandard_request(int endpoint, USBSetupPa
}
else if (setup->bRequest == 0x19)
{
const int tosend = 20;
// this command is used to retreive the jvs packets that have been received in response to the ones of 0x20
// data for the packets will be transferred to the host using endpoint 4 (IN)
// the nuber of bytes to transfer is returned at bytes 4 and 5 in the data stage of this control transfer
@ -779,11 +789,12 @@ int ohci_hlean2131qc_device::handle_nonstandard_request(int endpoint, USBSetupPa
// the bytes for a packet start with the jvs node address, then a dummy one (must be 0), then a 16 bit number in little endian format that specifies how many bytes follow
// the bytes that follow contain the body of the packet as received from the jvs bus, from the 0xa0 byte to the checksum
endpoints[endpoint].buffer[0] = 0; // 0 if not busy
endpoints[endpoint].buffer[5] = tosend >> 8; // amount to transfer with endpoint 4
endpoints[endpoint].buffer[4] = (tosend & 0xff);
endpoints[4].remain = tosend;
endpoints[4].position = endpoints[4].buffer;
memset(endpoints[4].buffer, 0, 20);
endpoints[endpoint].buffer[5] = jvs.buffer_out_used >> 8; // amount to transfer with endpoint 4
endpoints[endpoint].buffer[4] = (jvs.buffer_out_used & 0xff);
// the data to be sent is prepared in command 0x20
endpoints[4].remain = jvs.buffer_out_used;
endpoints[4].position = jvs.buffer_out;
jvs.buffer_out_used = 0;
endpoints[endpoint].buffer[0] = 0;
}
else if (setup->bRequest == 0x1c)
@ -830,6 +841,16 @@ int ohci_hlean2131qc_device::handle_nonstandard_request(int endpoint, USBSetupPa
// the data for each packet contains first a byte with value 0, then the sync byte (0xe0) then all the other bytes of the packet ending with the checksum byte
printf(" Jvs packets data of %d bytes\n\r", setup->wIndex);
endpoints[endpoint].buffer[0] = 0;
if (jvs.buffer_out_used == 0)
{
jvs.buffer_out_packets = 0;
jvs.buffer_out[0] = 0;
jvs.buffer_out[1] = (UINT8)jvs.buffer_out_packets;
jvs.buffer_out_used = 2;
}
jvs.buffer_in_expected = setup->wIndex;
endpoints[4].remain = jvs.buffer_in_expected;
endpoints[4].position = jvs.buffer_in;
}
else if (setup->bRequest == 0x24)
{
@ -862,7 +883,7 @@ int ohci_hlean2131qc_device::handle_nonstandard_request(int endpoint, USBSetupPa
int ohci_hlean2131qc_device::handle_bulk_pid(int endpoint, int pid, UINT8 *buffer, int size)
{
printf("Bulk request: %x %d %x\n\r", endpoint, pid, size);
if (((endpoint == 1) || (endpoint == 2) || (endpoint == 4)) && (pid == InPid))
if (((endpoint == 1) || (endpoint == 2)) && (pid == InPid))
{
if (size > endpoints[endpoint].remain)
size = endpoints[endpoint].remain;
@ -870,11 +891,59 @@ int ohci_hlean2131qc_device::handle_bulk_pid(int endpoint, int pid, UINT8 *buffe
endpoints[endpoint].position = endpoints[endpoint].position + size;
endpoints[endpoint].remain = endpoints[endpoint].remain - size;
}
if ((endpoint == 4) && (pid == InPid))
{
if (size > endpoints[4].remain)
size = endpoints[4].remain;
memcpy(buffer, endpoints[4].position, size);
endpoints[4].position = endpoints[4].position + size;
endpoints[4].remain = endpoints[4].remain - size;
}
if ((endpoint == 4) && (pid == OutPid))
{
if (size > endpoints[4].remain)
size = endpoints[4].remain;
for (int n = 0; n < size; n++)
printf(" %02x",buffer[n]);
printf("\n\r");
printf(" %02x", buffer[n]);
if (size > 0) {
memcpy(endpoints[4].position, buffer, size);
endpoints[4].position = endpoints[4].position + size;
endpoints[4].remain = endpoints[4].remain - size;
printf("\n\r");
if (endpoints[4].remain == 0)
{
// extract packets
int numpk = jvs.buffer_in[1];
int p = 2;
for (int n = 0;n < numpk;n++)
{
p++;
if (jvs.buffer_in[p] != 0xe0)
break;
p++;
int dest = jvs.buffer_in[p];
p++;
int len = jvs.buffer_in[p];
p++;
if ((p + len) >= jvs.buffer_in_expected)
break;
int chk = dest + len;
for (int m = len - 1; m > 0; m--)
chk = chk + (int)jvs.buffer_in[p + m - 1];
chk = chk & 255;
if (chk != (int)jvs.buffer_in[p + len - 1])
{
p = p + len;
continue;
}
// use data of this packet
// generate response
// update buffer_out
p = p + len;
}
}
}
}
return size;
}