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path: root/drivers/video/riva/nv_driver.c
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Diffstat (limited to 'drivers/video/riva/nv_driver.c')
-rw-r--r--drivers/video/riva/nv_driver.c425
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 00000000000..be630a0ccfd
--- /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);
+}
+
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-04 17:25:07 +0000