/*
- * Acess 2 USB Stack
- * USB Packet Control
+ * Acess2 USB Stack
+ * - By John Hodge (thePowersGang)
+ *
+ * usb.c
+ * - USB Structure
*/
#define DEBUG 1
#include <acess.h>
#include <vfs.h>
#include <drv_pci.h>
#include "usb.h"
-#include "usb_proto.h"
// === IMPORTS ===
extern tUSBHost *gUSB_Hosts;
+extern tUSBDriver gUSBHub_Driver;
// === 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);
+
+// === GLOBALS ===
+tUSBDriver *gpUSB_InterfaceDrivers = &gUSBHub_Driver;
// === CODE ===
tUSBHub *USB_RegisterHost(tUSBHostDef *HostDef, void *ControllerPtr, int nPorts)
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->RootHubIf.Next = NULL;
+ host->RootHubIf.Dev = &host->RootHubDev;
+ host->RootHubIf.Driver = NULL;
+ host->RootHubIf.Data = NULL;
+ host->RootHubIf.nEndpoints = 0;
+
+ host->RootHub.Interface = &host->RootHubIf;
host->RootHub.nPorts = nPorts;
memset(host->RootHub.Devices, 0, sizeof(void*)*nPorts);
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)
+// --- Drivers ---
+void USB_RegisterDriver(tUSBDriver *Driver)
{
-
+ Log_Warning("USB", "TODO: Implement USB_RegisterDriver");
}
-void *USB_GetDeviceDataPtr(tUSBDevice *Dev) { return Dev->Data; }
-void USB_SetDeviceDataPtr(tUSBDevice *Dev, void *Ptr) { Dev->Data = Ptr; }
-
-int USB_int_AllocateAddress(tUSBHost *Host)
+tUSBDriver *USB_int_FindDriverByClass(Uint32 ClassCode)
{
- int i;
- for( i = 1; i < 128; i ++ )
+ ENTER("xClassCode", ClassCode);
+ for( tUSBDriver *ret = gpUSB_InterfaceDrivers; ret; ret = ret->Next )
{
- if(Host->AddressBitmap[i/8] & (1 << i))
- continue ;
- return i;
+ LOG(" 0x%x & 0x%x == 0x%x?", ClassCode, ret->Match.Class.ClassMask, ret->Match.Class.ClassCode);
+ if( (ClassCode & ret->Match.Class.ClassMask) == ret->Match.Class.ClassCode )
+ {
+ LOG("Found '%s'", ret->Name);
+ LEAVE('p', ret);
+ return ret;
+ }
}
- return 0;
+ LEAVE('n');
+ return NULL;
}
-int USB_int_SendSetupSetAddress(tUSBHost *Host, int Address)
+// --- Hub Registration ---
+// NOTE: Doesn't do much nowdays
+tUSBHub *USB_RegisterHub(tUSBInterface *Device, int PortCount)
{
- struct sDeviceRequest req;
- req.ReqType = 0; // bmRequestType
- req.Request = 5; // SET_ADDRESS
- req.Value = Address & 0x7F; // wValue
- req.Index = 0; // wIndex
- req.Length = 0; // wLength
+ tUSBHub *ret;
- // Addr 0:0, Data Toggle = 0, no interrupt
- return Host->HostDef->SendSETUP(Host->Ptr, 0, 0, 0, FALSE, &req, sizeof(req)) == NULL;
+ ret = malloc(sizeof(tUSBHub) + sizeof(ret->Devices[0])*PortCount);
+ ret->Interface = Device;
+ ret->nPorts = PortCount;
+ memset(ret->Devices, 0, sizeof(ret->Devices[0])*PortCount);
+ return ret;
}
-int USB_int_ReadDescriptor(tUSBDevice *Dev, int Endpoint, int Type, int Index, int Length, void *Dest)
+void USB_RemoveHub(tUSBHub *Hub)
{
- 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 )
+ for( int i = 0; i < Hub->nPorts; i ++ )
{
- Dev->Host->HostDef->SendIN(
- Dev->Host->Ptr, Dev->Address, Endpoint,
- bToggle, NULL,
- Dest, ciMaxPacketSize
- );
- bToggle = !bToggle;
- Length -= ciMaxPacketSize;
+ if( Hub->Devices[i] )
+ {
+ USB_DeviceDisconnected( Hub, i );
+ }
}
-
- 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;
+ free(Hub);
}
+
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