Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 425 insertions, 0 deletions

diff --git a/drivers/video/riva/nv_driver.c b/drivers/video/riva/nv_driver.c
new file mode 100644
index 000000000000..be630a0ccfd4
--- /dev/null
+++ b/drivers/video/riva/nv_driver.c
@@ -0,0 +1,425 @@
+/* $XConsortium: nv_driver.c /main/3 1996/10/28 05:13:37 kaleb $ */
+/*
+ * Copyright 1996-1997  David J. McKay
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * DAVID J. MCKAY BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/*
+ * GPL licensing note -- nVidia is allowing a liberal interpretation of
+ * the documentation restriction above, to merely say that this nVidia's
+ * copyright and disclaimer should be included with all code derived
+ * from this source.  -- Jeff Garzik <jgarzik@pobox.com>, 01/Nov/99 
+ */
+
+/* Hacked together from mga driver and 3.3.4 NVIDIA driver by Jarno Paananen
+   <jpaana@s2.org> */
+
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/nv/nv_setup.c,v 1.18 2002/08/0
+5 20:47:06 mvojkovi Exp $ */
+
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include "nv_type.h"
+#include "rivafb.h"
+#include "nvreg.h"
+
+
+#ifndef CONFIG_PCI		/* sanity check */
+#error This driver requires PCI support.
+#endif
+
+#define PFX "rivafb: "
+
+static inline unsigned char MISCin(struct riva_par *par)
+{
+	return (VGA_RD08(par->riva.PVIO, 0x3cc));
+}
+
+static Bool 
+riva_is_connected(struct riva_par *par, Bool second)
+{
+	volatile U032 __iomem *PRAMDAC = par->riva.PRAMDAC0;
+	U032 reg52C, reg608;
+	Bool present;
+
+	if(second) PRAMDAC += 0x800;
+
+	reg52C = NV_RD32(PRAMDAC, 0x052C);
+	reg608 = NV_RD32(PRAMDAC, 0x0608);
+
+	NV_WR32(PRAMDAC, 0x0608, reg608 & ~0x00010000);
+
+	NV_WR32(PRAMDAC, 0x052C, reg52C & 0x0000FEEE);
+	mdelay(1); 
+	NV_WR32(PRAMDAC, 0x052C, NV_RD32(PRAMDAC, 0x052C) | 1);
+
+	NV_WR32(par->riva.PRAMDAC0, 0x0610, 0x94050140);
+	NV_WR32(par->riva.PRAMDAC0, 0x0608, 0x00001000);
+
+	mdelay(1);
+
+	present = (NV_RD32(PRAMDAC, 0x0608) & (1 << 28)) ? TRUE : FALSE;
+
+	NV_WR32(par->riva.PRAMDAC0, 0x0608,
+		NV_RD32(par->riva.PRAMDAC0, 0x0608) & 0x0000EFFF);
+
+	NV_WR32(PRAMDAC, 0x052C, reg52C);
+	NV_WR32(PRAMDAC, 0x0608, reg608);
+
+	return present;
+}
+
+static void
+riva_override_CRTC(struct riva_par *par)
+{
+	printk(KERN_INFO PFX
+		"Detected CRTC controller %i being used\n",
+		par->SecondCRTC ? 1 : 0);
+
+	if(par->forceCRTC != -1) {
+		printk(KERN_INFO PFX
+			"Forcing usage of CRTC %i\n", par->forceCRTC);
+		par->SecondCRTC = par->forceCRTC;
+	}
+}
+
+static void
+riva_is_second(struct riva_par *par)
+{
+	if (par->FlatPanel == 1) {
+		switch(par->Chipset & 0xffff) {
+		case 0x0174:
+		case 0x0175:
+		case 0x0176:
+		case 0x0177:
+		case 0x0179:
+		case 0x017C:
+		case 0x017D:
+		case 0x0186:
+		case 0x0187:
+		/* this might not be a good default for the chips below */
+		case 0x0286:
+		case 0x028C:
+		case 0x0316:
+		case 0x0317:
+		case 0x031A:
+		case 0x031B:
+		case 0x031C:
+		case 0x031D:
+		case 0x031E:
+		case 0x031F:
+		case 0x0324:
+		case 0x0325:
+		case 0x0328:
+		case 0x0329:
+		case 0x032C:
+		case 0x032D:
+			par->SecondCRTC = TRUE;
+			break;
+		default:
+			par->SecondCRTC = FALSE;
+			break;
+		}
+	} else {
+		if(riva_is_connected(par, 0)) {
+
+			if (NV_RD32(par->riva.PRAMDAC0, 0x0000052C) & 0x100)
+				par->SecondCRTC = TRUE;
+			else
+				par->SecondCRTC = FALSE;
+		} else 
+		if (riva_is_connected(par, 1)) {
+			if(NV_RD32(par->riva.PRAMDAC0, 0x0000252C) & 0x100)
+				par->SecondCRTC = TRUE;
+			else
+				par->SecondCRTC = FALSE;
+		} else /* default */
+			par->SecondCRTC = FALSE;
+	}
+	riva_override_CRTC(par);
+}
+
+unsigned long riva_get_memlen(struct riva_par *par)
+{
+	RIVA_HW_INST *chip = &par->riva;
+	unsigned long memlen = 0;
+	unsigned int chipset = par->Chipset;
+	struct pci_dev* dev;
+	int amt;
+
+	switch (chip->Architecture) {
+	case NV_ARCH_03:
+		if (NV_RD32(chip->PFB, 0x00000000) & 0x00000020) {
+			if (((NV_RD32(chip->PMC, 0x00000000) & 0xF0) == 0x20)
+			    && ((NV_RD32(chip->PMC, 0x00000000)&0x0F)>=0x02)) {
+				/*
+				 * SDRAM 128 ZX.
+				 */
+				switch (NV_RD32(chip->PFB,0x00000000) & 0x03) {
+				case 2:
+					memlen = 1024 * 4;
+					break;
+				case 1:
+					memlen = 1024 * 2;
+					break;
+				default:
+					memlen = 1024 * 8;
+					break;
+				}
+			} else {
+				memlen = 1024 * 8;
+			}            
+		} else 	{
+			/*
+			 * SGRAM 128.
+			 */
+			switch (NV_RD32(chip->PFB, 0x00000000) & 0x00000003) {
+			case 0:
+				memlen = 1024 * 8;
+				break;
+			case 2:
+				memlen = 1024 * 4;
+				break;
+			default:
+				memlen = 1024 * 2;
+				break;
+			}
+		}        
+		break;
+	case NV_ARCH_04:
+		if (NV_RD32(chip->PFB, 0x00000000) & 0x00000100) {
+			memlen = ((NV_RD32(chip->PFB, 0x00000000)>>12)&0x0F) *
+				1024 * 2 + 1024 * 2;
+		} else {
+			switch (NV_RD32(chip->PFB, 0x00000000) & 0x00000003) {
+			case 0:
+				memlen = 1024 * 32;
+				break;
+			case 1:
+				memlen = 1024 * 4;
+				break;
+			case 2:
+				memlen = 1024 * 8;
+				break;
+			case 3:
+			default:
+				memlen = 1024 * 16;
+				break;
+			}
+		}
+		break;
+	case NV_ARCH_10:
+	case NV_ARCH_20:
+	case NV_ARCH_30:
+		if(chipset == NV_CHIP_IGEFORCE2) {
+
+			dev = pci_find_slot(0, 1);
+			pci_read_config_dword(dev, 0x7C, &amt);
+			memlen = (((amt >> 6) & 31) + 1) * 1024;
+		} else if (chipset == NV_CHIP_0x01F0) {
+			dev = pci_find_slot(0, 1);
+			pci_read_config_dword(dev, 0x84, &amt);
+			memlen = (((amt >> 4) & 127) + 1) * 1024;
+		} else {
+			switch ((NV_RD32(chip->PFB, 0x0000020C) >> 20) &
+				0x000000FF){
+			case 0x02:
+				memlen = 1024 * 2;
+				break;
+			case 0x04:
+				memlen = 1024 * 4;
+				break;
+			case 0x08:
+				memlen = 1024 * 8;
+				break;
+			case 0x10:
+				memlen = 1024 * 16;
+				break;
+			case 0x20:
+				memlen = 1024 * 32;
+				break;
+			case 0x40:
+				memlen = 1024 * 64;
+				break;
+			case 0x80:
+				memlen = 1024 * 128;
+				break;
+			default:
+				memlen = 1024 * 16;
+				break;
+			}
+		}
+		break;
+	}
+	return memlen;
+}
+
+unsigned long riva_get_maxdclk(struct riva_par *par)
+{
+	RIVA_HW_INST *chip = &par->riva;
+	unsigned long dclk = 0;
+
+	switch (chip->Architecture) {
+	case NV_ARCH_03:
+		if (NV_RD32(chip->PFB, 0x00000000) & 0x00000020) {
+			if (((NV_RD32(chip->PMC, 0x00000000) & 0xF0) == 0x20)
+			    && ((NV_RD32(chip->PMC,0x00000000)&0x0F) >= 0x02)) {
+				/*
+				 * SDRAM 128 ZX.
+				 */
+				dclk = 800000;
+			} else {
+				dclk = 1000000;
+			}            
+		} else {
+			/*
+			 * SGRAM 128.
+			 */
+			dclk = 1000000;
+		} 
+		break;
+	case NV_ARCH_04:
+	case NV_ARCH_10:
+	case NV_ARCH_20:
+	case NV_ARCH_30:
+		switch ((NV_RD32(chip->PFB, 0x00000000) >> 3) & 0x00000003) {
+		case 3:
+			dclk = 800000;
+			break;
+		default:
+			dclk = 1000000;
+			break;
+		}
+		break;
+	}
+	return dclk;
+}
+
+void
+riva_common_setup(struct riva_par *par)
+{
+	par->riva.EnableIRQ = 0;
+	par->riva.PRAMDAC0 =
+		(volatile U032 __iomem *)(par->ctrl_base + 0x00680000);
+	par->riva.PFB =
+		(volatile U032 __iomem *)(par->ctrl_base + 0x00100000);
+	par->riva.PFIFO =
+		(volatile U032 __iomem *)(par->ctrl_base + 0x00002000);
+	par->riva.PGRAPH =
+		(volatile U032 __iomem *)(par->ctrl_base + 0x00400000);
+	par->riva.PEXTDEV =
+		(volatile U032 __iomem *)(par->ctrl_base + 0x00101000);
+	par->riva.PTIMER =
+		(volatile U032 __iomem *)(par->ctrl_base + 0x00009000);
+	par->riva.PMC =
+		(volatile U032 __iomem *)(par->ctrl_base + 0x00000000);
+	par->riva.FIFO =
+		(volatile U032 __iomem *)(par->ctrl_base + 0x00800000);
+	par->riva.PCIO0 = par->ctrl_base + 0x00601000;
+	par->riva.PDIO0 = par->ctrl_base + 0x00681000;
+	par->riva.PVIO = par->ctrl_base + 0x000C0000;
+
+	par->riva.IO = (MISCin(par) & 0x01) ? 0x3D0 : 0x3B0;
+	
+	if (par->FlatPanel == -1) {
+		switch (par->Chipset & 0xffff) {
+		case 0x0112:   /* known laptop chips */
+		case 0x0174:
+		case 0x0175:
+		case 0x0176:
+		case 0x0177:
+		case 0x0179:
+		case 0x017C:
+		case 0x017D:
+		case 0x0186:
+		case 0x0187:
+		case 0x0286:
+		case 0x028C:
+		case 0x0316:
+		case 0x0317:
+		case 0x031A:
+		case 0x031B:
+		case 0x031C:
+		case 0x031D:
+		case 0x031E:
+		case 0x031F:
+		case 0x0324:
+		case 0x0325:
+		case 0x0328:
+		case 0x0329:
+		case 0x032C:
+		case 0x032D:
+			printk(KERN_INFO PFX 
+				"On a laptop.  Assuming Digital Flat Panel\n");
+			par->FlatPanel = 1;
+			break;
+		default:
+			break;
+		}
+	}
+	
+	switch (par->Chipset & 0x0ff0) {
+	case 0x0110:
+		if (par->Chipset == NV_CHIP_GEFORCE2_GO)
+			par->SecondCRTC = TRUE; 
+#if defined(__powerpc__)
+		if (par->FlatPanel == 1)
+			par->SecondCRTC = TRUE;
+#endif
+		riva_override_CRTC(par);
+		break;
+	case 0x0170:
+	case 0x0180:
+	case 0x01F0:
+	case 0x0250:
+	case 0x0280:
+	case 0x0300:
+	case 0x0310:
+	case 0x0320:
+	case 0x0330:
+	case 0x0340:
+		riva_is_second(par);
+		break;
+	default:
+		break;
+	}
+
+	if (par->SecondCRTC) {
+		par->riva.PCIO = par->riva.PCIO0 + 0x2000;
+		par->riva.PCRTC = par->riva.PCRTC0 + 0x800;
+		par->riva.PRAMDAC = par->riva.PRAMDAC0 + 0x800;
+		par->riva.PDIO = par->riva.PDIO0 + 0x2000;
+	} else {
+		par->riva.PCIO = par->riva.PCIO0;
+		par->riva.PCRTC = par->riva.PCRTC0;
+		par->riva.PRAMDAC = par->riva.PRAMDAC0;
+		par->riva.PDIO = par->riva.PDIO0;
+	}
+
+	if (par->FlatPanel == -1) {
+		/* Fix me, need x86 DDC code */
+		par->FlatPanel = 0;
+	}
+	par->riva.flatPanel = (par->FlatPanel > 0) ? TRUE : FALSE;
+
+	RivaGetConfig(&par->riva, par->Chipset);
+}
+