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Diffstat (limited to 'drivers/video/pmag-ba-fb.c')
-rw-r--r--drivers/video/pmag-ba-fb.c93
1 files changed, 42 insertions, 51 deletions
diff --git a/drivers/video/pmag-ba-fb.c b/drivers/video/pmag-ba-fb.c
index 7987082fc..1ba65e446 100644
--- a/drivers/video/pmag-ba-fb.c
+++ b/drivers/video/pmag-ba-fb.c
@@ -1,5 +1,5 @@
/*
- * linux/drivers/video/pmagbafb.c
+ * linux/drivers/video/pmag-ba-fb.c
*
* PMAG-BA TurboChannel framebuffer card support ... derived from:
* "HP300 Topcat framebuffer support (derived from macfb of all things)
@@ -10,9 +10,10 @@
* "PMAG-BA TURBOchannel Color Frame Buffer
* Functional Specification", Revision 1.2, August 27, 1990
*
- * DECstation related code Copyright (C) 1999, 2000 by
- * Michael Engel <engel@unix-ag.org>, Karsten Merker <merker@guug.de>
- * and Harald Koerfgen <harald@unix-ag.org>.
+ * DECstation related code Copyright (C) 1999, 2000, 2001 by
+ * Michael Engel <engel@unix-ag.org>,
+ * Karsten Merker <merker@linuxtag.org> and
+ * Harald Koerfgen <harald@unix-ag.org>.
* 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.
@@ -33,6 +34,7 @@
#include <asm/bootinfo.h>
#include <asm/dec/machtype.h>
#include <asm/dec/tc.h>
+#include "pmag-ba-fb.h"
#include <video/fbcon.h>
#include <video/fbcon-mfb.h>
@@ -42,18 +44,7 @@
#define arraysize(x) (sizeof(x)/sizeof(*(x)))
-/*
- * Bt459 RAM DAC register base offset (rel. to TC slot base address)
- */
-#define BT459_OFFSET 0x00200000
-
-/*
- * Begin of DECstation 5000/xx onboard framebuffer memory, resolution
- * is 1024x864x8
- */
-#define PMAG_BA_ONBOARD_FBMEM_OFFSET 0x00000000
-
-struct ramdac_regs {
+struct pmag_ba_ramdac_regs {
unsigned char addr_low;
unsigned char pad0[3];
unsigned char addr_hi;
@@ -63,9 +54,9 @@ struct ramdac_regs {
unsigned char cmap;
};
-struct my_fb_info {
+struct pmag_ba_my_fb_info {
struct fb_info info;
- struct ramdac_regs *bt459_regs;
+ struct pmag_ba_ramdac_regs *bt459_regs;
unsigned long pmagba_fb_start;
unsigned long pmagba_fb_size;
unsigned long pmagba_fb_line_length;
@@ -75,7 +66,7 @@ static struct display disp;
/*
* Max 3 TURBOchannel slots -> max 3 PMAG-BA :)
*/
-static struct my_fb_info pmagba_fb_info[3];
+static struct pmag_ba_my_fb_info pmagba_fb_info[3];
static struct fb_var_screeninfo pmagbafb_defined = {
0, 0, 0, 0, /* W,H, W, H (virtual) load xres,xres_virtual */
@@ -157,7 +148,7 @@ static int pmagba_do_fb_set_var(struct fb_var_screeninfo *var,
/*
* Turn hardware cursor off
*/
-void pmagbafb_erase_cursor(struct my_fb_info *info)
+void pmagbafb_erase_cursor(struct pmag_ba_my_fb_info *info)
{
info->bt459_regs->addr_low = 0;
info->bt459_regs->addr_hi = 3;
@@ -167,8 +158,8 @@ void pmagbafb_erase_cursor(struct my_fb_info *info)
/*
* Write to a Bt459 color map register
*/
-void bt459_write_colormap(struct my_fb_info *info,
- int reg, __u8 red, __u8 green, __u8 blue)
+void pmag_ba_bt459_write_colormap(struct pmag_ba_my_fb_info *info,
+ int reg, __u8 red, __u8 green, __u8 blue)
{
info->bt459_regs->addr_low = (__u8) reg;
info->bt459_regs->addr_hi = 0;
@@ -193,9 +184,9 @@ static int pmagbafb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
length = cmap->len;
}
for (i = 0; i < length; i++) {
- /*
- * TODO
- */
+ /*
+ * TODO
+ */
}
return 0;
}
@@ -220,9 +211,10 @@ static int pmagbafb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
cmap_green = ((cmap->green[i]) >> 8); /* wide, but the harware colormap */
cmap_blue = ((cmap->blue[i]) >> 8); /* registers are only 8 bits wide */
- bt459_write_colormap((struct my_fb_info *) info,
- cmap->start + i, cmap_red, cmap_green,
- cmap_blue);
+ pmag_ba_bt459_write_colormap((struct pmag_ba_my_fb_info *)
+ info, cmap->start + i,
+ cmap_red, cmap_green,
+ cmap_blue);
}
return 0;
}
@@ -252,14 +244,11 @@ static int pmagbafb_set_var(struct fb_var_screeninfo *var, int con,
static void pmagbafb_encode_fix(struct fb_fix_screeninfo *fix,
struct pmagbafb_par *par,
- struct my_fb_info *info)
+ struct pmag_ba_my_fb_info *info)
{
memset(fix, 0, sizeof(struct fb_fix_screeninfo));
strcpy(fix->id, "PMAG-BA");
- /*
- * X works, but screen wraps ...
- */
fix->smem_start = info->pmagba_fb_start;
fix->smem_len = info->pmagba_fb_size;
fix->type = FB_TYPE_PACKED_PIXELS;
@@ -274,10 +263,10 @@ static int pmagbafb_get_fix(struct fb_fix_screeninfo *fix, int con,
struct fb_info *info)
{
struct pmagbafb_par par;
-
+
pmagbafb_get_par(&par);
- pmagbafb_encode_fix(fix, &par, (struct my_fb_info *) info);
-
+ pmagbafb_encode_fix(fix, &par, (struct pmag_ba_my_fb_info *) info);
+
return 0;
}
@@ -293,7 +282,7 @@ static int pmagbafb_switch(int con, struct fb_info *info)
{
pmagba_do_fb_set_var(&fb_display[con].var, 1);
currcon = con;
-
+
return 0;
}
@@ -313,7 +302,7 @@ static int pmagbafb_open(struct fb_info *info, int user)
return (0);
}
-static void pmagbafb_set_disp(int con, struct my_fb_info *info)
+static void pmagbafb_set_disp(int con, struct pmag_ba_my_fb_info *info)
{
struct fb_fix_screeninfo fix;
struct display *display;
@@ -346,31 +335,33 @@ static int pmagbafb_release(struct fb_info *info, int user)
}
static struct fb_ops pmagbafb_ops = {
- owner: THIS_MODULE,
- fb_open: pmagbafb_open,
- fb_release: pmagbafb_release,
- fb_get_fix: pmagbafb_get_fix,
- fb_get_var: pmagbafb_get_var,
- fb_set_var: pmagbafb_set_var,
- fb_get_cmap: pmagbafb_get_cmap,
- fb_set_cmap: pmagbafb_set_cmap,
- fb_ioctl: pmagbafb_ioctl,
- fb_mmap: 0,
- fb_rasterimg: 0
+ owner:THIS_MODULE,
+ fb_open:pmagbafb_open,
+ fb_release:pmagbafb_release,
+ fb_get_fix:pmagbafb_get_fix,
+ fb_get_var:pmagbafb_get_var,
+ fb_set_var:pmagbafb_set_var,
+ fb_get_cmap:pmagbafb_get_cmap,
+ fb_set_cmap:pmagbafb_set_cmap,
+ fb_ioctl:pmagbafb_ioctl,
+ fb_mmap:0,
+ fb_rasterimg:0
};
int __init pmagbafb_init_one(int slot)
{
unsigned long base_addr = get_tc_base_addr(slot);
- struct my_fb_info *ip =
- (struct my_fb_info *) &pmagba_fb_info[slot];
+ struct pmag_ba_my_fb_info *ip =
+ (struct pmag_ba_my_fb_info *) &pmagba_fb_info[slot];
printk("PMAG-BA framebuffer in slot %d\n", slot);
/*
* Framebuffer display memory base address and friends
*/
- ip->bt459_regs = (struct ramdac_regs *) (base_addr + BT459_OFFSET);
+ ip->bt459_regs =
+ (struct pmag_ba_ramdac_regs *) (base_addr +
+ PMAG_BA_BT459_OFFSET);
ip->pmagba_fb_start = base_addr + PMAG_BA_ONBOARD_FBMEM_OFFSET;
ip->pmagba_fb_size = 1024 * 864;
ip->pmagba_fb_line_length = 1024;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 08:09:16 +0000