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-rw-r--r--drivers/video/Kconfig2
-rw-r--r--drivers/video/nvidia/nv_of.c64
-rw-r--r--drivers/video/nvidia/nv_proto.h14
-rw-r--r--drivers/video/nvidia/nv_setup.c16
-rw-r--r--drivers/video/nvidia/nvidia.c84
5 files changed, 137 insertions, 43 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 1eec03a9b102..9c54695911c1 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -703,7 +703,7 @@ config FB_NVIDIA
config FB_NVIDIA_I2C
bool "Enable DDC Support"
- depends on FB_NVIDIA && !PPC_OF
+ depends on FB_NVIDIA
help
This enables I2C support for nVidia Chipsets. This is used
only for getting EDID information from the attached display
diff --git a/drivers/video/nvidia/nv_of.c b/drivers/video/nvidia/nv_of.c
index 4fa2cf9a8af2..7a03d040b1a3 100644
--- a/drivers/video/nvidia/nv_of.c
+++ b/drivers/video/nvidia/nv_of.c
@@ -27,34 +27,60 @@
#include "nv_local.h"
#include "nv_proto.h"
-void nvidia_create_i2c_busses(struct nvidia_par *par) {}
-void nvidia_delete_i2c_busses(struct nvidia_par *par) {}
+#include "../edid.h"
-int nvidia_probe_i2c_connector(struct fb_info *info, int conn, u8 **out_edid)
+int nvidia_probe_of_connector(struct fb_info *info, int conn, u8 **out_edid)
{
struct nvidia_par *par = info->par;
- struct device_node *dp;
+ struct device_node *parent, *dp;
unsigned char *pedid = NULL;
- unsigned char *disptype = NULL;
static char *propnames[] = {
- "DFP,EDID", "LCD,EDID", "EDID", "EDID1", "EDID,B", "EDID,A", NULL };
+ "DFP,EDID", "LCD,EDID", "EDID", "EDID1",
+ "EDID,B", "EDID,A", NULL };
int i;
- dp = pci_device_to_OF_node(par->pci_dev);
- for (; dp != NULL; dp = dp->child) {
- disptype = (unsigned char *)get_property(dp, "display-type", NULL);
- if (disptype == NULL)
- continue;
- if (strncmp(disptype, "LCD", 3) != 0)
- continue;
+ parent = pci_device_to_OF_node(par->pci_dev);
+ if (parent == NULL)
+ return -1;
+ if (par->twoHeads) {
+ char *pname;
+ int len;
+
+ for (dp = NULL;
+ (dp = of_get_next_child(parent, dp)) != NULL;) {
+ pname = (char *)get_property(dp, "name", NULL);
+ if (!pname)
+ continue;
+ len = strlen(pname);
+ if ((pname[len-1] == 'A' && conn == 1) ||
+ (pname[len-1] == 'B' && conn == 2)) {
+ for (i = 0; propnames[i] != NULL; ++i) {
+ pedid = (unsigned char *)
+ get_property(dp, propnames[i],
+ NULL);
+ if (pedid != NULL)
+ break;
+ }
+ of_node_put(dp);
+ break;
+ }
+ }
+ }
+ if (pedid == NULL) {
for (i = 0; propnames[i] != NULL; ++i) {
pedid = (unsigned char *)
- get_property(dp, propnames[i], NULL);
- if (pedid != NULL) {
- *out_edid = pedid;
- return 0;
- }
+ get_property(parent, propnames[i], NULL);
+ if (pedid != NULL)
+ break;
}
}
- return 1;
+ if (pedid) {
+ *out_edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
+ if (*out_edid == NULL)
+ return -1;
+ memcpy(*out_edid, pedid, EDID_LENGTH);
+ printk(KERN_DEBUG "nvidiafb: Found OF EDID for head %d\n", conn);
+ return 0;
+ }
+ return -1;
}
diff --git a/drivers/video/nvidia/nv_proto.h b/drivers/video/nvidia/nv_proto.h
index cac44fc7f587..3d35b77a4af5 100644
--- a/drivers/video/nvidia/nv_proto.h
+++ b/drivers/video/nvidia/nv_proto.h
@@ -31,7 +31,7 @@ int NVShowHideCursor(struct nvidia_par *par, int);
void NVLockUnlock(struct nvidia_par *par, int);
/* in nvidia-i2c.c */
-#if defined(CONFIG_FB_NVIDIA_I2C) || defined (CONFIG_PPC_OF)
+#ifdef CONFIG_FB_NVIDIA_I2C
void nvidia_create_i2c_busses(struct nvidia_par *par);
void nvidia_delete_i2c_busses(struct nvidia_par *par);
int nvidia_probe_i2c_connector(struct fb_info *info, int conn,
@@ -39,10 +39,14 @@ int nvidia_probe_i2c_connector(struct fb_info *info, int conn,
#else
#define nvidia_create_i2c_busses(...)
#define nvidia_delete_i2c_busses(...)
-#define nvidia_probe_i2c_connector(p, c, edid) \
-do { \
- *(edid) = NULL; \
-} while(0)
+#define nvidia_probe_i2c_connector(p, c, edid) (-1)
+#endif
+
+#ifdef CONFIG_FB_OF
+int nvidia_probe_of_connector(struct fb_info *info, int conn,
+ u8 ** out_edid);
+#else
+#define nvidia_probe_of_connector(p, c, edid) (-1)
#endif
/* in nv_accel.c */
diff --git a/drivers/video/nvidia/nv_setup.c b/drivers/video/nvidia/nv_setup.c
index 11c84178f420..1f06a9f1bd0f 100644
--- a/drivers/video/nvidia/nv_setup.c
+++ b/drivers/video/nvidia/nv_setup.c
@@ -190,9 +190,9 @@ static int NVIsConnected(struct nvidia_par *par, int output)
present = (NV_RD32(PRAMDAC, 0x0608) & (1 << 28)) ? 1 : 0;
if (present)
- printk("nvidiafb: CRTC%i found\n", output);
+ printk("nvidiafb: CRTC%i analog found\n", output);
else
- printk("nvidiafb: CRTC%i not found\n", output);
+ printk("nvidiafb: CRTC%i analog not found\n", output);
NV_WR32(par->PRAMDAC0, 0x0608, NV_RD32(par->PRAMDAC0, 0x0608) &
0x0000EFFF);
@@ -305,6 +305,9 @@ void NVCommonSetup(struct fb_info *info)
int FlatPanel = -1; /* really means the CRTC is slaved */
int Television = 0;
+ memset(&monitorA, 0, sizeof(struct fb_monspecs));
+ memset(&monitorB, 0, sizeof(struct fb_monspecs));
+
par->PRAMIN = par->REGS + (0x00710000 / 4);
par->PCRTC0 = par->REGS + (0x00600000 / 4);
par->PRAMDAC0 = par->REGS + (0x00680000 / 4);
@@ -401,7 +404,8 @@ void NVCommonSetup(struct fb_info *info)
nvidia_create_i2c_busses(par);
if (!par->twoHeads) {
par->CRTCnumber = 0;
- nvidia_probe_i2c_connector(info, 1, &edidA);
+ if (nvidia_probe_i2c_connector(info, 1, &edidA))
+ nvidia_probe_of_connector(info, 1, &edidA);
if (edidA && !fb_parse_edid(edidA, &var)) {
printk("nvidiafb: EDID found from BUS1\n");
monA = &monitorA;
@@ -488,14 +492,16 @@ void NVCommonSetup(struct fb_info *info)
oldhead = NV_RD32(par->PCRTC0, 0x00000860);
NV_WR32(par->PCRTC0, 0x00000860, oldhead | 0x00000010);
- nvidia_probe_i2c_connector(info, 1, &edidA);
+ if (nvidia_probe_i2c_connector(info, 1, &edidA))
+ nvidia_probe_of_connector(info, 1, &edidA);
if (edidA && !fb_parse_edid(edidA, &var)) {
printk("nvidiafb: EDID found from BUS1\n");
monA = &monitorA;
fb_edid_to_monspecs(edidA, monA);
}
- nvidia_probe_i2c_connector(info, 2, &edidB);
+ if (nvidia_probe_i2c_connector(info, 2, &edidB))
+ nvidia_probe_of_connector(info, 2, &edidB);
if (edidB && !fb_parse_edid(edidB, &var)) {
printk("nvidiafb: EDID found from BUS2\n");
monB = &monitorB;
diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c
index 308defc389a2..96d51144094a 100644
--- a/drivers/video/nvidia/nvidia.c
+++ b/drivers/video/nvidia/nvidia.c
@@ -627,41 +627,85 @@ static void nvidia_save_vga(struct nvidia_par *par,
NVTRACE_LEAVE();
}
+#undef DUMP_REG
+
static void nvidia_write_regs(struct nvidia_par *par)
{
struct _riva_hw_state *state = &par->ModeReg;
int i;
NVTRACE_ENTER();
- NVWriteCrtc(par, 0x11, 0x00);
-
- NVLockUnlock(par, 0);
NVLoadStateExt(par, state);
NVWriteMiscOut(par, state->misc_output);
+ for (i = 1; i < NUM_SEQ_REGS; i++) {
+#ifdef DUMP_REG
+ printk(" SEQ[%02x] = %08x\n", i, state->seq[i]);
+#endif
+ NVWriteSeq(par, i, state->seq[i]);
+ }
+
+ /* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 of CRTC[17] */
+ NVWriteCrtc(par, 0x11, state->crtc[0x11] & ~0x80);
+
for (i = 0; i < NUM_CRT_REGS; i++) {
switch (i) {
case 0x19:
case 0x20 ... 0x40:
break;
default:
+#ifdef DUMP_REG
+ printk("CRTC[%02x] = %08x\n", i, state->crtc[i]);
+#endif
NVWriteCrtc(par, i, state->crtc[i]);
}
}
- for (i = 0; i < NUM_ATC_REGS; i++)
- NVWriteAttr(par, i, state->attr[i]);
-
- for (i = 0; i < NUM_GRC_REGS; i++)
+ for (i = 0; i < NUM_GRC_REGS; i++) {
+#ifdef DUMP_REG
+ printk(" GRA[%02x] = %08x\n", i, state->gra[i]);
+#endif
NVWriteGr(par, i, state->gra[i]);
+ }
+
+ for (i = 0; i < NUM_ATC_REGS; i++) {
+#ifdef DUMP_REG
+ printk("ATTR[%02x] = %08x\n", i, state->attr[i]);
+#endif
+ NVWriteAttr(par, i, state->attr[i]);
+ }
- for (i = 0; i < NUM_SEQ_REGS; i++)
- NVWriteSeq(par, i, state->seq[i]);
NVTRACE_LEAVE();
}
+static void nvidia_vga_protect(struct nvidia_par *par, int on)
+{
+ unsigned char tmp;
+
+ if (on) {
+ /*
+ * Turn off screen and disable sequencer.
+ */
+ tmp = NVReadSeq(par, 0x01);
+
+ NVWriteSeq(par, 0x00, 0x01); /* Synchronous Reset */
+ NVWriteSeq(par, 0x01, tmp | 0x20); /* disable the display */
+ } else {
+ /*
+ * Reenable sequencer, then turn on screen.
+ */
+
+ tmp = NVReadSeq(par, 0x01);
+
+ NVWriteSeq(par, 0x01, tmp & ~0x20); /* reenable display */
+ NVWriteSeq(par, 0x00, 0x03); /* End Reset */
+ }
+}
+
+
+
static int nvidia_calc_regs(struct fb_info *info)
{
struct nvidia_par *par = info->par;
@@ -868,7 +912,7 @@ static void nvidia_init_vga(struct fb_info *info)
for (i = 0; i < 0x10; i++)
state->attr[i] = i;
state->attr[0x10] = 0x41;
- state->attr[0x11] = 0x01;
+ state->attr[0x11] = 0xff;
state->attr[0x12] = 0x0f;
state->attr[0x13] = 0x00;
state->attr[0x14] = 0x00;
@@ -991,7 +1035,6 @@ static int nvidiafb_set_par(struct fb_info *info)
nvidia_init_vga(info);
nvidia_calc_regs(info);
- nvidia_write_regs(par);
NVLockUnlock(par, 0);
if (par->twoHeads) {
@@ -1000,7 +1043,22 @@ static int nvidiafb_set_par(struct fb_info *info)
NVLockUnlock(par, 0);
}
- NVWriteCrtc(par, 0x11, 0x00);
+ nvidia_vga_protect(par, 1);
+
+ nvidia_write_regs(par);
+
+#if defined (__BIG_ENDIAN)
+ /* turn on LFB swapping */
+ {
+ unsigned char tmp;
+
+ VGA_WR08(par->PCIO, 0x3d4, 0x46);
+ tmp = VGA_RD08(par->PCIO, 0x3d5);
+ tmp |= (1 << 7);
+ VGA_WR08(par->PCIO, 0x3d5, tmp);
+ }
+#endif
+
info->fix.line_length = (info->var.xres_virtual *
info->var.bits_per_pixel) >> 3;
if (info->var.accel_flags) {
@@ -1022,7 +1080,7 @@ static int nvidiafb_set_par(struct fb_info *info)
par->cursor_reset = 1;
- NVWriteCrtc(par, 0x11, 0xff);
+ nvidia_vga_protect(par, 0);
NVTRACE_LEAVE();
return 0;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.