2 Copyright 2010, The AROS Development Team. All rights reserved.
8 #include <proto/exec.h>
10 #include <aros/debug.h>
12 #include "agp_private.h"
14 #undef HiddAGPBridgeDeviceAttrBase
15 #define HiddAGPBridgeDeviceAttrBase (SD(cl)->hiddAGPBridgeDeviceAB)
17 #define AGP_VIA_SEL 0xfd
18 #define AGP_VIA_GART_CTRL 0x80
19 #define AGP_VIA_APER_SIZE 0x84
20 #define AGP_VIA_GATT_BASE 0x88
23 /* NON-PUBLIC METHODS */
24 VOID
METHOD(VIABridgeDevice
, Hidd_AGPBridgeDevice
, FlushGattTable
)
26 struct HIDDGenericBridgeDeviceData
* gbddata
=
27 OOP_INST_DATA(SD(cl
)->genericBridgeDeviceClass
, o
);
29 OOP_Object
* bridgedev
= gbddata
->bridge
->PciDevice
;
31 ctrlreg
= readconfiglong(bridgedev
, AGP_VIA_GART_CTRL
);
33 writeconfiglong(bridgedev
, AGP_VIA_GART_CTRL
, ctrlreg
);
35 writeconfiglong(bridgedev
, AGP_VIA_GART_CTRL
, ctrlreg
);
40 OOP_Object
* METHOD(VIABridgeDevice
, Root
, New
)
42 o
= (OOP_Object
*)OOP_DoSuperMethod(cl
, o
, (OOP_Msg
) msg
);
47 VOID
VIABridgeDevice__Root__Dispose(OOP_Class
* cl
, OOP_Object
* o
, OOP_Msg msg
)
51 OOP_DoSuperMethod(cl
, o
, (OOP_Msg
)msg
);
54 BOOL
METHOD(VIABridgeDevice
, Hidd_AGPBridgeDevice
, Initialize
)
56 struct HIDDGenericBridgeDeviceData
* gbddata
=
57 OOP_INST_DATA(SD(cl
)->genericBridgeDeviceClass
, o
);
59 struct pHidd_AGPBridgeDevice_ScanAndDetectDevices saddmsg
= {
60 mID
: OOP_GetMethodID(IID_Hidd_AGPBridgeDevice
, moHidd_AGPBridgeDevice_ScanAndDetectDevices
)
65 OOP_Object
* bridgedev
= NULL
;
66 UBYTE bridgeagpcap
= 0;
67 UBYTE aperture_size_value
= 0;
70 /* Scan for bridge and agp devices */
71 if (!OOP_DoMethod(o
, (OOP_Msg
)&saddmsg
))
74 /* Check if bridge is a supported VIA bridge */
75 if (gbddata
->bridge
->VendorID
!= 0x1106)
78 bridgedev
= gbddata
->bridge
->PciDevice
;
79 bridgeagpcap
= gbddata
->bridge
->AgpCapability
;
81 /* Getting version info */
82 major
= (readconfigbyte(bridgedev
, bridgeagpcap
+ AGP_VERSION_REG
) >> 4) & 0xf;
83 D(minor
= readconfigbyte(bridgedev
, bridgeagpcap
+ AGP_VERSION_REG
) & 0xf);
85 D(bug("[AGP] [VIA] Read config: AGP version %d.%d\n", major
, minor
));
88 gbddata
->bridgemode
= readconfiglong(bridgedev
, bridgeagpcap
+ AGP_STATUS_REG
);
90 D(bug("[AGP] [VIA] Reading mode: 0x%x\n", gbddata
->bridgemode
));
94 /* VIA AGP3 chipsets emulate pre 3.0 if in legacy mode */
97 reg
= readconfigbyte(bridgedev
, AGP_VIA_SEL
);
98 if ((reg
& (1<<1)) == 0)
100 D(bug("[AGP] [VIA] 3.0 chipset working in 3.0 mode\n"));
105 D(bug("[AGP] [VIA] 3.0 chipset working in 2.0 emulation mode\n"));
113 /* Getting GART size */
114 aperture_size_value
= readconfigbyte(bridgedev
, AGP_VIA_APER_SIZE
);
115 D(bug("[AGP] [VIA] Reading aperture size value: %x\n", aperture_size_value
));
117 switch(aperture_size_value
)
119 case(255): gbddata
->bridgeapersize
= 1; break;
120 case(254): gbddata
->bridgeapersize
= 2; break;
121 case(252): gbddata
->bridgeapersize
= 4; break;
122 case(248): gbddata
->bridgeapersize
= 8; break;
123 case(240): gbddata
->bridgeapersize
= 16; break;
124 case(224): gbddata
->bridgeapersize
= 32; break;
125 case(192): gbddata
->bridgeapersize
= 64; break;
126 case(128): gbddata
->bridgeapersize
= 128; break;
127 case(0): gbddata
->bridgeapersize
= 256; break;
128 default: gbddata
->bridgeapersize
= 0; break;
131 D(bug("[AGP] [VIA] Calculated aperture size: %d MB\n", (ULONG
)gbddata
->bridgeapersize
));
133 /* Creation of GATT table */
134 struct pHidd_AGPBridgeDevice_CreateGattTable cgtmsg
= {
135 mID
: OOP_GetMethodID(IID_Hidd_AGPBridgeDevice
, moHidd_AGPBridgeDevice_CreateGattTable
)
137 if (!OOP_DoMethod(o
, (OOP_Msg
)&cgtmsg
))
140 /* Getting GART base */
141 gbddata
->bridgeaperbase
= (IPTR
)readconfiglong(bridgedev
, AGP_APER_BASE
);
142 gbddata
->bridgeaperbase
&= (~0x0fUL
) /* PCI_BASE_ADDRESS_MEM_MASK */;
143 D(bug("[AGP] [VIA] Reading aperture base: 0x%x\n", (ULONG
)gbddata
->bridgeaperbase
));
145 /* GART control register */
146 writeconfiglong(bridgedev
, AGP_VIA_GART_CTRL
, 0x0000000f);
148 /* Set GATT pointer */
149 writeconfiglong(bridgedev
, AGP_VIA_GATT_BASE
,
150 (((ULONG
)(IPTR
)gbddata
->gatttable
) & 0xfffff000) | 3);
151 D(bug("[AGP] [VIA] Set GATT pointer to 0x%x\n",
152 (((ULONG
)(IPTR
)gbddata
->gatttable
) & 0xfffff000) | 3));
154 gbddata
->state
= STATE_INITIALIZED
;