#include "usb.h"
#include "usb_proto.h"
+// === IMPORTS ===
+extern tUSBHost *gUSB_Hosts;
+
// === STRUCTURES ===
+// === PROTOTYPES ===
+tUSBHub *USB_RegisterHost(tUSBHostDef *HostDef, void *ControllerPtr, int nPorts);
+void USB_DeviceConnected(tUSBHub *Hub, int Port);
+void USB_DeviceDisconnected(tUSBHub *Hub, int Port);
+void *USB_GetDeviceDataPtr(tUSBDevice *Dev);
+void USB_SetDeviceDataPtr(tUSBDevice *Dev, void *Ptr);
+ int USB_int_AllocateAddress(tUSBHost *Host);
+ int USB_int_SendSetupSetAddress(tUSBHost *Host, int Address);
+
// === CODE ===
tUSBHub *USB_RegisterHost(tUSBHostDef *HostDef, void *ControllerPtr, int nPorts)
{
- // TODO:
- return NULL;
+ tUSBHost *host;
+
+ host = malloc(sizeof(tUSBHost) + nPorts*sizeof(void*));
+ if(!host) {
+ // Oh, bugger.
+ return NULL;
+ }
+ host->HostDef = HostDef;
+ host->Ptr = ControllerPtr;
+ memset(host->AddressBitmap, 0, sizeof(host->AddressBitmap));
+
+ host->RootHubDev.Next = NULL;
+ host->RootHubDev.ParentHub = NULL;
+ host->RootHubDev.Host = host;
+ host->RootHubDev.Address = 0;
+ host->RootHubDev.Driver = NULL;
+ host->RootHubDev.Data = NULL;
+
+ host->RootHub.Device = NULL;
+ host->RootHub.CheckPorts = NULL;
+ host->RootHub.nPorts = nPorts;
+ memset(host->RootHub.Devices, 0, sizeof(void*)*nPorts);
+
+ // TODO: Lock
+ host->Next = gUSB_Hosts;
+ gUSB_Hosts = host;
+
+ // Initialise?
+ HostDef->CheckPorts(ControllerPtr);
+
+ return &host->RootHub;
}
void USB_DeviceConnected(tUSBHub *Hub, int Port)
{
+ tUSBDevice *dev;
if( Port >= Hub->nPorts ) return ;
if( Hub->Devices[Port] ) return ;
+ ENTER("pHub iPort", Hub, Port);
+
// 0. Perform port init? (done in hub?)
+
+ // Create structure
+ dev = malloc(sizeof(tUSBDevice));
+ dev->Next = NULL;
+ dev->ParentHub = Hub;
+ dev->Host = Hub->Device->Host;
+ dev->Address = 0;
+ dev->Driver = 0;
+ dev->Data = 0;
+
// 1. Assign an address
+ dev->Address = USB_int_AllocateAddress(dev->Host);
+ if(dev->Address == 0) {
+ Log_Error("USB", "No addresses avaliable on host %p", dev->Host);
+ free(dev);
+ LEAVE('-');
+ return ;
+ }
+ USB_int_SendSetupSetAddress(dev->Host, dev->Address);
+ LOG("Assigned address %i", dev->Address);
// 2. Get device information
+
+ // Done.
+ LEAVE('-');
}
void USB_DeviceDisconnected(tUSBHub *Hub, int Port)
return 0;
}
-int USB_int_SendSetupSetAddress(tUSBHost *Host, void *Ptr, int Address)
+int USB_int_SendSetupSetAddress(tUSBHost *Host, int Address)
{
struct sDeviceRequest req;
req.ReqType = 0; // bmRequestType
req.Length = 0; // wLength
// Addr 0:0, Data Toggle = 0, no interrupt
- return Host->HostDef->SendSETUP(Ptr, 0, 0, 0, FALSE, &req, sizeof(req)) == NULL;
+ return Host->HostDef->SendSETUP(Host->Ptr, 0, 0, 0, FALSE, &req, sizeof(req)) == NULL;
+}
+
+int USB_int_ReadDescriptor(tUSBDevice *Dev, int Endpoint, int Type, int Index, int Length, void *Dest)
+{
+ const int ciMaxPacketSize = 0x400;
+ struct sDeviceRequest req;
+ int bToggle = 0;
+ void *final;
+
+ req.ReqType = 0x80;
+ req.Request = 6; // GET_DESCRIPTOR
+ req.Value = ((Type & 0xFF) << 8) | (Index & 0xFF);
+ req.Index = 0; // TODO: Language ID
+ req.Length = Length;
+
+ Dev->Host->HostDef->SendSETUP(
+ Dev->Host->Ptr, Dev->Address, Endpoint,
+ 0, NULL,
+ &req, sizeof(req)
+ );
+
+ bToggle = 1;
+ while( Length > ciMaxPacketSize )
+ {
+ Dev->Host->HostDef->SendIN(
+ Dev->Host->Ptr, Dev->Address, Endpoint,
+ bToggle, NULL,
+ Dest, ciMaxPacketSize
+ );
+ bToggle = !bToggle;
+ Length -= ciMaxPacketSize;
+ }
+
+ final = Dev->Host->HostDef->SendIN(
+ Dev->Host->Ptr, Dev->Address, Endpoint,
+ bToggle, INVLPTR,
+ Dest, Length
+ );
+
+ while( Dev->Host->HostDef->IsOpComplete(Dev->Host->Ptr, final) == 0 )
+ Time_Delay(1);
+
+ return 0;
}