[PATCH 2.6.20-rc1 #2 06/10] tgafb: TURBOchannel support

From: Maciej W. Rozycki
Date: Thu Dec 21 2006 - 10:50:31 EST

This is support for the TC variations of the TGA boards (properly known
as SFB+ or Smart Frame Buffer Plus boards). The 8-plane SFB+ board uses
the Bt459 RAMDAC (unlike its PCI TGA counterpart, which uses the Bt485),
so bits have been added to support this chip as well.

Signed-off-by: Maciej W. Rozycki <macro@xxxxxxxxxxxxxx>
---

This is a new version which resolves a conflict with CONFIG_BITREVERSE
added recently. No functional changes. Sorry about the hassle.

Please apply.

Maciej

patch-2.6.20-rc1-hx+-71
diff -up --recursive --new-file linux-2.6.20-rc1.macro/drivers/video/Kconfig linux-2.6.20-rc1/drivers/video/Kconfig
--- linux-2.6.20-rc1.macro/drivers/video/Kconfig 2006-12-14 01:14:23.000000000 +0000
+++ linux-2.6.20-rc1/drivers/video/Kconfig 2006-12-21 15:38:02.000000000 +0000
@@ -536,15 +536,25 @@ config FB_HP300
default y

config FB_TGA
- tristate "TGA framebuffer support"
- depends on FB && ALPHA
+ tristate "TGA/SFB+ framebuffer support"
+ depends on FB && (ALPHA || TC)
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
select BITREVERSE
help
- This is the frame buffer device driver for generic TGA graphic
- cards. Say Y if you have one of those.
+ This is the frame buffer device driver for generic TGA and SFB+
+ graphic cards. These include DEC ZLXp-E1, E2 and E3 PCI cards,
+ also known as PBXGA-A, B and C, and DEC ZLX-E1, E2 and E3
+ TURBOchannel cards, also known as PMAGD-A, B and C.
+
+ Due to hardware limitations ZLX-E2 and E3 cards are not supported
+ for DECstation 5000/200 systems. Additionally due to firmware
+ limitations these cards may cause troubles with booting DECstation
+ 5000/240 and /260 systems, but are fully supported under Linux if
+ you manage to get it going.
+
+ Say Y if you have one of those.

config FB_VESA
bool "VESA VGA graphics support"
diff -up --recursive --new-file linux-2.6.20-rc1.macro/drivers/video/tgafb.c linux-2.6.20-rc1/drivers/video/tgafb.c
--- linux-2.6.20-rc1.macro/drivers/video/tgafb.c 2006-12-21 15:34:50.000000000 +0000
+++ linux-2.6.20-rc1/drivers/video/tgafb.c 2006-12-21 15:42:33.000000000 +0000
@@ -5,28 +5,46 @@
* Copyright (C) 1997 Geert Uytterhoeven
* Copyright (C) 1999,2000 Martin Lucina, Tom Zerucha
* Copyright (C) 2002 Richard Henderson
+ * Copyright (C) 2006 Maciej W. Rozycki
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*/

-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
+#include <linux/bitrev.h>
#include <linux/delay.h>
-#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/errno.h>
#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/module.h>
#include <linux/pci.h>
+#include <linux/sched.h>
#include <linux/selection.h>
-#include <linux/bitrev.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/tc.h>
+
#include <asm/io.h>
+
#include <video/tgafb.h>

+#ifdef CONFIG_PCI
+#define TGA_BUS_PCI(dev) (dev->bus == &pci_bus_type)
+#else
+#define TGA_BUS_PCI(dev) 0
+#endif
+
+#ifdef CONFIG_TC
+#define TGA_BUS_TC(dev) (dev->bus == &tc_bus_type)
+#else
+#define TGA_BUS_TC(dev) 0
+#endif
+
/*
* Local functions.
*/
@@ -43,13 +61,17 @@ static void tgafb_imageblit(struct fb_in
static void tgafb_fillrect(struct fb_info *, const struct fb_fillrect *);
static void tgafb_copyarea(struct fb_info *, const struct fb_copyarea *);

-static int __devinit tgafb_pci_register(struct pci_dev *,
- const struct pci_device_id *);
-static void __devexit tgafb_pci_unregister(struct pci_dev *);
+static int __devinit tgafb_register(struct device *dev);
+static void __devexit tgafb_unregister(struct device *dev);

-static const char *mode_option = "640x480@60";
+static const char *mode_option;
+static const char *mode_option_pci = "640x480@60";
+static const char *mode_option_tc = "1280x1024@72";


+static struct pci_driver tgafb_pci_driver;
+static struct tc_driver tgafb_tc_driver;
+
/*
* Frame buffer operations
*/
@@ -66,9 +88,13 @@ static struct fb_ops tgafb_ops = {
};


+#ifdef CONFIG_PCI
/*
* PCI registration operations
*/
+static int __devinit tgafb_pci_register(struct pci_dev *,
+ const struct pci_device_id *);
+static void __devexit tgafb_pci_unregister(struct pci_dev *);

static struct pci_device_id const tgafb_pci_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TGA) },
@@ -76,13 +102,68 @@ static struct pci_device_id const tgafb_
};
MODULE_DEVICE_TABLE(pci, tgafb_pci_table);

-static struct pci_driver tgafb_driver = {
+static struct pci_driver tgafb_pci_driver = {
.name = "tgafb",
.id_table = tgafb_pci_table,
.probe = tgafb_pci_register,
.remove = __devexit_p(tgafb_pci_unregister),
};

+static int __devinit
+tgafb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ return tgafb_register(&pdev->dev);
+}
+
+static void __devexit
+tgafb_pci_unregister(struct pci_dev *pdev)
+{
+ tgafb_unregister(&pdev->dev);
+}
+#endif /* CONFIG_PCI */
+
+#ifdef CONFIG_TC
+/*
+ * TC registration operations
+ */
+static int __devinit tgafb_tc_register(struct device *);
+static int __devexit tgafb_tc_unregister(struct device *);
+
+static struct tc_device_id const tgafb_tc_table[] = {
+ { "DEC ", "PMAGD-AA" },
+ { "DEC ", "PMAGD " },
+ { }
+};
+MODULE_DEVICE_TABLE(tc, tgafb_tc_table);
+
+static struct tc_driver tgafb_tc_driver = {
+ .id_table = tgafb_tc_table,
+ .driver = {
+ .name = "tgafb",
+ .bus = &tc_bus_type,
+ .probe = tgafb_tc_register,
+ .remove = __devexit_p(tgafb_tc_unregister),
+ },
+};
+
+static int __devinit
+tgafb_tc_register(struct device *dev)
+{
+ int status = tgafb_register(dev);
+ if (!status)
+ get_device(dev);
+ return status;
+}
+
+static int __devexit
+tgafb_tc_unregister(struct device *dev)
+{
+ put_device(dev);
+ tgafb_unregister(dev);
+ return 0;
+}
+#endif /* CONFIG_TC */
+

/**
* tgafb_check_var - Optional function. Validates a var passed in.
@@ -133,10 +214,10 @@ static int
tgafb_set_par(struct fb_info *info)
{
static unsigned int const deep_presets[4] = {
- 0x00014000,
- 0x0001440d,
+ 0x00004000,
+ 0x0000440d,
0xffffffff,
- 0x0001441d
+ 0x0000441d
};
static unsigned int const rasterop_presets[4] = {
0x00000003,
@@ -158,6 +239,8 @@ tgafb_set_par(struct fb_info *info)
};

struct tga_par *par = (struct tga_par *) info->par;
+ int tga_bus_pci = TGA_BUS_PCI(par->dev);
+ int tga_bus_tc = TGA_BUS_TC(par->dev);
u32 htimings, vtimings, pll_freq;
u8 tga_type;
int i;
@@ -222,7 +305,7 @@ tgafb_set_par(struct fb_info *info)
TGA_WRITE_REG(par, vtimings, TGA_VERT_REG);

/* Initalise RAMDAC. */
- if (tga_type == TGA_TYPE_8PLANE) {
+ if (tga_type == TGA_TYPE_8PLANE && tga_bus_pci) {

/* Init BT485 RAMDAC registers. */
BT485_WRITE(par, 0xa2 | (par->sync_on_green ? 0x8 : 0x0),
@@ -262,6 +345,38 @@ tgafb_set_par(struct fb_info *info)
TGA_RAMDAC_REG);
}

+ } else if (tga_type == TGA_TYPE_8PLANE && tga_bus_tc) {
+
+ /* Init BT459 RAMDAC registers. */
+ BT459_WRITE(par, BT459_REG_ACC, BT459_CMD_REG_0, 0x40);
+ BT459_WRITE(par, BT459_REG_ACC, BT459_CMD_REG_1, 0x00);
+ BT459_WRITE(par, BT459_REG_ACC, BT459_CMD_REG_2,
+ (par->sync_on_green ? 0xc0 : 0x40));
+
+ BT459_WRITE(par, BT459_REG_ACC, BT459_CUR_CMD_REG, 0x00);
+
+ /* Fill the palette. */
+ BT459_LOAD_ADDR(par, 0x0000);
+ TGA_WRITE_REG(par, BT459_PALETTE << 2, TGA_RAMDAC_SETUP_REG);
+
+#ifdef CONFIG_HW_CONSOLE
+ for (i = 0; i < 16; i++) {
+ int j = color_table[i];
+
+ TGA_WRITE_REG(par, default_red[j], TGA_RAMDAC_REG);
+ TGA_WRITE_REG(par, default_grn[j], TGA_RAMDAC_REG);
+ TGA_WRITE_REG(par, default_blu[j], TGA_RAMDAC_REG);
+ }
+ for (i = 0; i < 240 * 3; i += 4) {
+#else
+ for (i = 0; i < 256 * 3; i += 4) {
+#endif
+ TGA_WRITE_REG(par, 0x55, TGA_RAMDAC_REG);
+ TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG);
+ TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG);
+ TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG);
+ }
+
} else { /* 24-plane or 24plusZ */

/* Init BT463 RAMDAC registers. */
@@ -432,6 +547,8 @@ tgafb_setcolreg(unsigned regno, unsigned
unsigned transp, struct fb_info *info)
{
struct tga_par *par = (struct tga_par *) info->par;
+ int tga_bus_pci = TGA_BUS_PCI(par->dev);
+ int tga_bus_tc = TGA_BUS_TC(par->dev);

if (regno > 255)
return 1;
@@ -439,12 +556,18 @@ tgafb_setcolreg(unsigned regno, unsigned
green >>= 8;
blue >>= 8;

- if (par->tga_type == TGA_TYPE_8PLANE) {
+ if (par->tga_type == TGA_TYPE_8PLANE && tga_bus_pci) {
BT485_WRITE(par, regno, BT485_ADDR_PAL_WRITE);
TGA_WRITE_REG(par, BT485_DATA_PAL, TGA_RAMDAC_SETUP_REG);
TGA_WRITE_REG(par, red|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
TGA_WRITE_REG(par, green|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
TGA_WRITE_REG(par, blue|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
+ } else if (par->tga_type == TGA_TYPE_8PLANE && tga_bus_tc) {
+ BT459_LOAD_ADDR(par, regno);
+ TGA_WRITE_REG(par, BT459_PALETTE << 2, TGA_RAMDAC_SETUP_REG);
+ TGA_WRITE_REG(par, red, TGA_RAMDAC_REG);
+ TGA_WRITE_REG(par, green, TGA_RAMDAC_REG);
+ TGA_WRITE_REG(par, blue, TGA_RAMDAC_REG);
} else {
if (regno < 16) {
u32 value = (regno << 16) | (regno << 8) | regno;
@@ -1310,18 +1433,29 @@ static void
tgafb_init_fix(struct fb_info *info)
{
struct tga_par *par = (struct tga_par *)info->par;
+ int tga_bus_pci = TGA_BUS_PCI(par->dev);
+ int tga_bus_tc = TGA_BUS_TC(par->dev);
u8 tga_type = par->tga_type;
- const char *tga_type_name;
+ const char *tga_type_name = NULL;

switch (tga_type) {
case TGA_TYPE_8PLANE:
- tga_type_name = "Digital ZLXp-E1";
+ if (tga_bus_pci)
+ tga_type_name = "Digital ZLXp-E1";
+ if (tga_bus_tc)
+ tga_type_name = "Digital ZLX-E1";
break;
case TGA_TYPE_24PLANE:
- tga_type_name = "Digital ZLXp-E2";
+ if (tga_bus_pci)
+ tga_type_name = "Digital ZLXp-E2";
+ if (tga_bus_tc)
+ tga_type_name = "Digital ZLX-E2";
break;
case TGA_TYPE_24PLUSZ:
- tga_type_name = "Digital ZLXp-E3";
+ if (tga_bus_pci)
+ tga_type_name = "Digital ZLXp-E3";
+ if (tga_bus_tc)
+ tga_type_name = "Digital ZLX-E3";
break;
default:
tga_type_name = "Unknown";
@@ -1349,9 +1483,15 @@ tgafb_init_fix(struct fb_info *info)
info->fix.accel = FB_ACCEL_DEC_TGA;
}

-static __devinit int
-tgafb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
+static int __devinit
+tgafb_register(struct device *dev)
{
+ static const struct fb_videomode modedb_tc = {
+ /* 1280x1024 @ 72 Hz, 76.8 kHz hsync */
+ "1280x1024@72", 0, 1280, 1024, 7645, 224, 28, 33, 3, 160, 3,
+ FB_SYNC_ON_GREEN, FB_VMODE_NONINTERLACED
+ };
+
static unsigned int const fb_offset_presets[4] = {
TGA_8PLANE_FB_OFFSET,
TGA_24PLANE_FB_OFFSET,
@@ -1359,40 +1499,51 @@ tgafb_pci_register(struct pci_dev *pdev,
TGA_24PLUSZ_FB_OFFSET
};

+ const struct fb_videomode *modedb_tga = NULL;
+ resource_size_t bar0_start = 0, bar0_len = 0;
+ const char *mode_option_tga = NULL;
+ int tga_bus_pci = TGA_BUS_PCI(dev);
+ int tga_bus_tc = TGA_BUS_TC(dev);
+ unsigned int modedbsize_tga = 0;
void __iomem *mem_base;
- unsigned long bar0_start, bar0_len;
struct fb_info *info;
struct tga_par *par;
u8 tga_type;
- int ret;
+ int ret = 0;

/* Enable device in PCI config. */
- if (pci_enable_device(pdev)) {
+ if (tga_bus_pci && pci_enable_device(to_pci_dev(dev))) {
printk(KERN_ERR "tgafb: Cannot enable PCI device\n");
return -ENODEV;
}

/* Allocate the fb and par structures. */
- info = framebuffer_alloc(sizeof(struct tga_par), &pdev->dev);
+ info = framebuffer_alloc(sizeof(struct tga_par), dev);
if (!info) {
printk(KERN_ERR "tgafb: Cannot allocate memory\n");
return -ENOMEM;
}

par = info->par;
- pci_set_drvdata(pdev, info);
+ dev_set_drvdata(dev, info);

/* Request the mem regions. */
- bar0_start = pci_resource_start(pdev, 0);
- bar0_len = pci_resource_len(pdev, 0);
ret = -ENODEV;
+ if (tga_bus_pci) {
+ bar0_start = pci_resource_start(to_pci_dev(dev), 0);
+ bar0_len = pci_resource_len(to_pci_dev(dev), 0);
+ }
+ if (tga_bus_tc) {
+ bar0_start = to_tc_dev(dev)->resource.start;
+ bar0_len = to_tc_dev(dev)->resource.end - bar0_start + 1;
+ }
if (!request_mem_region (bar0_start, bar0_len, "tgafb")) {
printk(KERN_ERR "tgafb: cannot reserve FB region\n");
goto err0;
}

/* Map the framebuffer. */
- mem_base = ioremap(bar0_start, bar0_len);
+ mem_base = ioremap_nocache(bar0_start, bar0_len);
if (!mem_base) {
printk(KERN_ERR "tgafb: Cannot map MMIO\n");
goto err1;
@@ -1400,12 +1551,16 @@ tgafb_pci_register(struct pci_dev *pdev,

/* Grab info about the card. */
tga_type = (readl(mem_base) >> 12) & 0x0f;
- par->pdev = pdev;
+ par->dev = dev;
par->tga_mem_base = mem_base;
par->tga_fb_base = mem_base + fb_offset_presets[tga_type];
par->tga_regs_base = mem_base + TGA_REGS_OFFSET;
par->tga_type = tga_type;
- pci_read_config_byte(pdev, PCI_REVISION_ID, &par->tga_chip_rev);
+ if (tga_bus_pci)
+ pci_read_config_byte(to_pci_dev(dev), PCI_REVISION_ID,
+ &par->tga_chip_rev);
+ if (tga_bus_tc)
+ par->tga_chip_rev = TGA_READ_REG(par, TGA_START_REG) & 0xff;

/* Setup framebuffer. */
info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
@@ -1415,8 +1570,17 @@ tgafb_pci_register(struct pci_dev *pdev,
info->pseudo_palette = (void *)(par + 1);

/* This should give a reasonable default video mode. */
-
- ret = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL,
+ if (tga_bus_pci) {
+ mode_option_tga = mode_option_pci;
+ }
+ if (tga_bus_tc) {
+ mode_option_tga = mode_option_tc;
+ modedb_tga = &modedb_tc;
+ modedbsize_tga = 1;
+ }
+ ret = fb_find_mode(&info->var, info,
+ mode_option ? mode_option : mode_option_tga,
+ modedb_tga, modedbsize_tga, NULL,
tga_type == TGA_TYPE_8PLANE ? 8 : 32);
if (ret == 0 || ret == 4) {
printk(KERN_ERR "tgafb: Could not find valid video mode\n");
@@ -1439,13 +1603,19 @@ tgafb_pci_register(struct pci_dev *pdev,
goto err1;
}

- printk(KERN_INFO "tgafb: DC21030 [TGA] detected, rev=0x%02x\n",
- par->tga_chip_rev);
- printk(KERN_INFO "tgafb: at PCI bus %d, device %d, function %d\n",
- pdev->bus->number, PCI_SLOT(pdev->devfn),
- PCI_FUNC(pdev->devfn));
- printk(KERN_INFO "fb%d: %s frame buffer device at 0x%lx\n",
- info->node, info->fix.id, bar0_start);
+ if (tga_bus_pci) {
+ pr_info("tgafb: DC21030 [TGA] detected, rev=0x%02x\n",
+ par->tga_chip_rev);
+ pr_info("tgafb: at PCI bus %d, device %d, function %d\n",
+ to_pci_dev(dev)->bus->number,
+ PCI_SLOT(to_pci_dev(dev)->devfn),
+ PCI_FUNC(to_pci_dev(dev)->devfn));
+ }
+ if (tga_bus_tc)
+ pr_info("tgafb: SFB+ detected, rev=0x%02x\n",
+ par->tga_chip_rev);
+ pr_info("fb%d: %s frame buffer device at 0x%lx\n",
+ info->node, info->fix.id, (long)bar0_start);

return 0;

@@ -1459,25 +1629,39 @@ tgafb_pci_register(struct pci_dev *pdev,
}

static void __devexit
-tgafb_pci_unregister(struct pci_dev *pdev)
+tgafb_unregister(struct device *dev)
{
- struct fb_info *info = pci_get_drvdata(pdev);
- struct tga_par *par = info->par;
+ resource_size_t bar0_start = 0, bar0_len = 0;
+ int tga_bus_pci = TGA_BUS_PCI(dev);
+ int tga_bus_tc = TGA_BUS_TC(dev);
+ struct fb_info *info = NULL;
+ struct tga_par *par;

+ info = dev_get_drvdata(dev);
if (!info)
return;
+
+ par = info->par;
unregister_framebuffer(info);
fb_dealloc_cmap(&info->cmap);
iounmap(par->tga_mem_base);
- release_mem_region(pci_resource_start(pdev, 0),
- pci_resource_len(pdev, 0));
+ if (tga_bus_pci) {
+ bar0_start = pci_resource_start(to_pci_dev(dev), 0);
+ bar0_len = pci_resource_len(to_pci_dev(dev), 0);
+ }
+ if (tga_bus_tc) {
+ bar0_start = to_tc_dev(dev)->resource.start;
+ bar0_len = to_tc_dev(dev)->resource.end - bar0_start + 1;
+ }
+ release_mem_region(bar0_start, bar0_len);
framebuffer_release(info);
}

static void __devexit
tgafb_exit(void)
{
- pci_unregister_driver(&tgafb_driver);
+ tc_unregister_driver(&tgafb_tc_driver);
+ pci_unregister_driver(&tgafb_pci_driver);
}

#ifndef MODULE
@@ -1506,6 +1690,7 @@ tgafb_setup(char *arg)
static int __devinit
tgafb_init(void)
{
+ int status;
#ifndef MODULE
char *option = NULL;

@@ -1513,7 +1698,10 @@ tgafb_init(void)
return -ENODEV;
tgafb_setup(option);
#endif
- return pci_register_driver(&tgafb_driver);
+ status = pci_register_driver(&tgafb_pci_driver);
+ if (!status)
+ status = tc_register_driver(&tgafb_tc_driver);
+ return status;
}

/*
@@ -1523,5 +1711,5 @@ tgafb_init(void)
module_init(tgafb_init);
module_exit(tgafb_exit);

-MODULE_DESCRIPTION("framebuffer driver for TGA chipset");
+MODULE_DESCRIPTION("Framebuffer driver for TGA/SFB+ chipset");
MODULE_LICENSE("GPL");
diff -up --recursive --new-file linux-2.6.20-rc1.macro/include/video/tgafb.h linux-2.6.20-rc1/include/video/tgafb.h
--- linux-2.6.20-rc1.macro/include/video/tgafb.h 2006-12-14 01:14:23.000000000 +0000
+++ linux-2.6.20-rc1/include/video/tgafb.h 2006-12-21 15:38:02.000000000 +0000
@@ -39,6 +39,7 @@
#define TGA_RASTEROP_REG 0x0034
#define TGA_PIXELSHIFT_REG 0x0038
#define TGA_DEEP_REG 0x0050
+#define TGA_START_REG 0x0054
#define TGA_PIXELMASK_REG 0x005c
#define TGA_CURSOR_BASE_REG 0x0060
#define TGA_HORIZ_REG 0x0064
@@ -140,7 +141,7 @@


/*
- * Useful defines for managing the BT463 on the 24-plane TGAs
+ * Useful defines for managing the BT463 on the 24-plane TGAs/SFB+s
*/

#define BT463_ADDR_LO 0x0
@@ -168,12 +169,35 @@
#define BT463_WINDOW_TYPE_BASE 0x0300

/*
+ * Useful defines for managing the BT459 on the 8-plane SFB+s
+ */
+
+#define BT459_ADDR_LO 0x0
+#define BT459_ADDR_HI 0x1
+#define BT459_REG_ACC 0x2
+#define BT459_PALETTE 0x3
+
+#define BT459_CUR_CLR_1 0x0181
+#define BT459_CUR_CLR_2 0x0182
+#define BT459_CUR_CLR_3 0x0183
+
+#define BT459_CMD_REG_0 0x0201
+#define BT459_CMD_REG_1 0x0202
+#define BT459_CMD_REG_2 0x0203
+
+#define BT459_READ_MASK 0x0204
+
+#define BT459_BLINK_MASK 0x0206
+
+#define BT459_CUR_CMD_REG 0x0300
+
+/*
* The framebuffer driver private data.
*/

struct tga_par {
- /* PCI device. */
- struct pci_dev *pdev;
+ /* PCI/TC device. */
+ struct device *dev;

/* Device dependent information. */
void __iomem *tga_mem_base;
@@ -235,4 +259,21 @@ BT463_WRITE(struct tga_par *par, u32 m,
TGA_WRITE_REG(par, m << 10 | v, TGA_RAMDAC_REG);
}

+static inline void
+BT459_LOAD_ADDR(struct tga_par *par, u16 a)
+{
+ TGA_WRITE_REG(par, BT459_ADDR_LO << 2, TGA_RAMDAC_SETUP_REG);
+ TGA_WRITE_REG(par, a & 0xff, TGA_RAMDAC_REG);
+ TGA_WRITE_REG(par, BT459_ADDR_HI << 2, TGA_RAMDAC_SETUP_REG);
+ TGA_WRITE_REG(par, a >> 8, TGA_RAMDAC_REG);
+}
+
+static inline void
+BT459_WRITE(struct tga_par *par, u32 m, u16 a, u8 v)
+{
+ BT459_LOAD_ADDR(par, a);
+ TGA_WRITE_REG(par, m << 2, TGA_RAMDAC_SETUP_REG);
+ TGA_WRITE_REG(par, v, TGA_RAMDAC_REG);
+}
+
#endif /* TGAFB_H */
-
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