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Subject[PATCH 2/5] s3fb: add support for 86C365 Trio3D
Date
Add support for S3 Trio3D (86C365) cards to s3fb driver. Tested with one 4MB card.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>

--- linux-2.6.38-rc4-/drivers/video/s3fb.c 2011-02-20 20:11:18.000000000 +0100
+++ linux-2.6.38-rc4/drivers/video/s3fb.c 2011-02-20 20:31:34.000000000 +0100
@@ -64,6 +64,8 @@ static const struct svga_fb_format s3fb_

static const struct svga_pll s3_pll = {3, 129, 3, 33, 0, 3,
35000, 240000, 14318};
+static const struct svga_pll s3_trio3d_pll = {3, 129, 3, 31, 0, 4,
+ 230000, 460000, 14318};

static const int s3_memsizes[] = {4096, 0, 3072, 8192, 2048, 6144, 1024, 512};

@@ -72,7 +74,8 @@ static const char * const s3_names[] = {
"S3 Plato/PX", "S3 Aurora64VP", "S3 Virge",
"S3 Virge/VX", "S3 Virge/DX", "S3 Virge/GX",
"S3 Virge/GX2", "S3 Virge/GX2P", "S3 Virge/GX2P",
- "S3 Trio3D/1X", "S3 Trio3D/2X", "S3 Trio3D/2X"};
+ "S3 Trio3D/1X", "S3 Trio3D/2X", "S3 Trio3D/2X",
+ "S3 Trio3D"};

#define CHIP_UNKNOWN 0x00
#define CHIP_732_TRIO32 0x01
@@ -93,6 +96,7 @@ static const char * const s3_names[] = {
#define CHIP_360_TRIO3D_1X 0x10
#define CHIP_362_TRIO3D_2X 0x11
#define CHIP_368_TRIO3D_2X 0x12
+#define CHIP_365_TRIO3D 0x13

#define CHIP_XXX_TRIO 0x80
#define CHIP_XXX_TRIO64V2_DXGX 0x81
@@ -341,7 +345,8 @@ static void s3_set_pixclock(struct fb_in
u8 regval;
int rv;

- rv = svga_compute_pll(&s3_pll, 1000000000 / pixclock, &m, &n, &r, info->node);
+ rv = svga_compute_pll((par->chip == CHIP_365_TRIO3D) ? &s3_trio3d_pll : &s3_pll,
+ 1000000000 / pixclock, &m, &n, &r, info->node);
if (rv < 0) {
printk(KERN_ERR "fb%d: cannot set requested pixclock, keeping old value\n", info->node);
return;
@@ -598,7 +603,8 @@ static int s3fb_set_par(struct fb_info *

if (par->chip == CHIP_360_TRIO3D_1X ||
par->chip == CHIP_362_TRIO3D_2X ||
- par->chip == CHIP_368_TRIO3D_2X) {
+ par->chip == CHIP_368_TRIO3D_2X ||
+ par->chip == CHIP_365_TRIO3D) {
dbytes = info->var.xres * ((bpp+7)/8);
vga_wcrt(par->state.vgabase, 0x91, (dbytes + 7) / 8);
vga_wcrt(par->state.vgabase, 0x90, (((dbytes + 7) / 8) >> 8) | 0x80);
@@ -1012,13 +1018,15 @@ static int __devinit s3_pci_probe(struct
regval = vga_rcrt(par->state.vgabase, 0x36);
if (par->chip == CHIP_360_TRIO3D_1X ||
par->chip == CHIP_362_TRIO3D_2X ||
- par->chip == CHIP_368_TRIO3D_2X) {
+ par->chip == CHIP_368_TRIO3D_2X ||
+ par->chip == CHIP_365_TRIO3D) {
switch ((regval & 0xE0) >> 5) {
case 0: /* 8MB -- only 4MB usable for display */
case 1: /* 4MB with 32-bit bus */
case 2: /* 4MB */
info->screen_size = 4 << 20;
break;
+ case 4: /* 2MB on 365 Trio3D */
case 6: /* 2MB */
info->screen_size = 2 << 20;
break;
@@ -1233,6 +1241,7 @@ static struct pci_device_id s3_devices[]
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A11), .driver_data = CHIP_357_VIRGE_GX2P},
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A12), .driver_data = CHIP_359_VIRGE_GX2P},
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A13), .driver_data = CHIP_36X_TRIO3D_1X_2X},
+ {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8904), .driver_data = CHIP_365_TRIO3D},

{0, 0, 0, 0, 0, 0, 0}
};
--
Ondrej Zary


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