patch-2.3.42 linux/drivers/video/dn_cfb8.c

• Lines: 595
• Date: Mon Jan 31 23:43:51 2000
• Orig file: v2.3.41/linux/drivers/video/dn_cfb8.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.41/linux/drivers/video/dn_cfb8.c linux/drivers/video/dn_cfb8.c
@@ -0,0 +1,594 @@
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/malloc.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <asm/setup.h>
+#include <asm/segment.h>
+#include <asm/system.h>
+#include <asm/irq.h>
+#include <asm/amigahw.h>
+#include <asm/amigaints.h>
+#include <asm/apollohw.h>
+#include <linux/fb.h>
+#include <linux/module.h>
+#include "dn_accel.h"
+#include "fbcon.h"
+#include "fbcon-mfb.h"
+
+/* apollo video HW definitions */
+
+/*
+ * Control Registers.   IOBASE + $x
+ *
+ * Note: these are the Memory/IO BASE definitions for a mono card set to the
+ * alternate address
+ *
+ * Control 3A and 3B serve identical functions except that 3A
+ * deals with control 1 and 3b deals with Color LUT reg.
+ */
+
+#define AP_IOBASE       0x3d0          /* Base address of 1 plane board. */
+#define AP_STATUS       isaIO2mem(AP_IOBASE+0) /* Status register.  Read */
+#define AP_WRITE_ENABLE isaIO2mem(AP_IOBASE+0) /* Write Enable Register Write */
+#define AP_DEVICE_ID    isaIO2mem(AP_IOBASE+1) /* Device ID Register. Read */
+#define AP_ROP_0        isaIO2mem(AP_IOBASE+2) /* Raster Operation reg. Write Word */
+#define AP_ROP_1        isaIO2mem(AP_IOBASE+4) /* Raster Operation reg. Write Word */
+#define AP_DIAG_MEM_REQ isaIO2mem(AP_IOBASE+6) /* Diagnostic Memory Request. Write Word */
+#define AP_CONTROL_0    isaIO2mem(AP_IOBASE+8) /* Control Register 0.  Read/Write */
+#define AP_LUT_DATA     isaIO2mem(AP_IOBASE+9) /* Control Register 0.  Read/Write */
+#define AP_CONTROL_1    isaIO2mem(AP_IOBASE+0xa) /* Control Register 1.  Read/Write */
+#define AP_LUT_CONTROL  isaIO2mem(AP_IOBASE+0xb) /* Control Register 1.  Read/Write */
+#define AP_CONTROL_2A   isaIO2mem(AP_IOBASE+0xc) /* Control Register 2. Read/Write */
+#define AP_CONTROL_2B   isaIO2mem(AP_IOBASE+0xd) /* Control Register 2. Read/Write */
+#define AP_CONTROL_3A   isaIO2mem(AP_IOBASE+0xe) /* Control Register 3a. Read/Write */
+#define AP_CONTROL_3B   isaIO2mem(AP_IOBASE+0xf) /* Control Register 3a. Read/Write */
+
+
+#define FRAME_BUFFER_START 0x0A0000
+#define FRAME_BUFFER_LEN 0x20000
+
+/* CREG 0 */
+#define VECTOR_MODE 0x40 /* 010x.xxxx */
+#define DBLT_MODE   0x80 /* 100x.xxxx */
+#define NORMAL_MODE 0xE0 /* 111x.xxxx */
+#define SHIFT_BITS  0x1F /* xxx1.1111 */
+        /* other bits are Shift value */
+
+/* CREG 1 */
+#define AD_BLT      0x80 /* 1xxx.xxxx */
+
+#define ROP_EN          0x10 /* xxx1.xxxx */
+#define DST_EQ_SRC      0x00 /* xxx0.xxxx */
+#define nRESET_SYNC     0x08 /* xxxx.1xxx */
+#define SYNC_ENAB       0x02 /* xxxx.xx1x */
+
+#define BLANK_DISP      0x00 /* xxxx.xxx0 */
+#define ENAB_DISP       0x01 /* xxxx.xxx1 */
+
+#define NORM_CREG1      (nRESET_SYNC | SYNC_ENAB | ENAB_DISP) /* no reset sync */
+
+/* CREG 2B */
+
+/*
+ * Following 3 defines are common to 1, 4 and 8 plane.
+ */
+
+#define S_DATA_1s   0x00 /* 00xx.xxxx */ /* set source to all 1's -- vector drawing */
+#define S_DATA_PIX  0x40 /* 01xx.xxxx */ /* takes source from ls-bits and replicates over 16 bits */
+#define S_DATA_PLN  0xC0 /* 11xx.xxxx */ /* normal, each data access =16-bits in
+ one plane of image mem */
+
+/* CREG 3A/CREG 3B */
+#       define RESET_CREG 0x80 /* 1000.0000 */
+
+/* ROP REG  -  all one nibble */
+/*      ********* NOTE : this is used r0,r1,r2,r3 *********** */
+#define ROP(r2,r3,r0,r1) ( (U_SHORT)((r0)|((r1)<<4)|((r2)<<8)|((r3)<<12)) )
+#define DEST_ZERO               0x0
+#define SRC_AND_DEST    0x1
+#define SRC_AND_nDEST   0x2
+#define SRC                             0x3
+#define nSRC_AND_DEST   0x4
+#define DEST                    0x5
+#define SRC_XOR_DEST    0x6
+#define SRC_OR_DEST             0x7
+#define SRC_NOR_DEST    0x8
+#define SRC_XNOR_DEST   0x9
+#define nDEST                   0xA
+#define SRC_OR_nDEST    0xB
+#define nSRC                    0xC
+#define nSRC_OR_DEST    0xD
+#define SRC_NAND_DEST   0xE
+#define DEST_ONE                0xF
+
+#define SWAP(A) ((A>>8) | ((A&0xff) <<8))
+
+
+void dn_video_setup(char *options, int *ints);
+
+/* frame buffer operations */
+
+static int dn_fb_open(struct fb_info *info);
+static int dn_fb_release(struct fb_info *info);
+static int dn_fb_get_fix(struct fb_fix_screeninfo *fix, int con, 
+			 struct fb_info *info);
+static int dn_fb_get_var(struct fb_var_screeninfo *var, int con,
+			 struct fb_info *info);
+static int dn_fb_set_var(struct fb_var_screeninfo *var, int isactive,
+			 struct fb_info *info);
+static int dn_fb_get_cmap(struct fb_cmap *cmap,int kspc,int con,
+			  struct fb_info *info);
+static int dn_fb_set_cmap(struct fb_cmap *cmap,int kspc,int con,
+			  struct fb_info *info);
+static int dn_fb_pan_display(struct fb_var_screeninfo *var, int con,
+			     struct fb_info *info);
+static int dn_fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
+		       unsigned long arg, int con, struct fb_info *info);
+
+static int dnfbcon_switch(int con,struct fb_info *info);
+static int dnfbcon_updatevar(int con,struct fb_info *info);
+static void dnfbcon_blank(int blank,struct fb_info *info);
+
+static void dn_fb_set_disp(int con,struct fb_info *info);
+
+static struct display disp[MAX_NR_CONSOLES];
+static struct fb_info fb_info;
+static struct fb_ops dn_fb_ops = { 
+	dn_fb_open,dn_fb_release, dn_fb_get_fix, dn_fb_get_var, dn_fb_set_var,
+	dn_fb_get_cmap, dn_fb_set_cmap, dn_fb_pan_display, dn_fb_ioctl
+};
+
+static int currcon=0;
+
+#define NUM_TOTAL_MODES 1
+struct fb_var_screeninfo dn_fb_predefined[] = {
+
+	{ 0, },
+
+};
+
+static char dn_fb_name[]="Apollo ";
+
+/* accel stuff */
+#define USE_DN_ACCEL
+
+static struct display_switch dispsw_apollofb;
+
+static int dn_fb_open(struct fb_info *info)
+{
+        /*
+         * Nothing, only a usage count for the moment
+         */
+
+        MOD_INC_USE_COUNT;
+        return(0);
+}
+
+static int dn_fb_release(struct fb_info *info)
+{
+        MOD_DEC_USE_COUNT;
+        return(0);
+}
+
+static int dn_fb_get_fix(struct fb_fix_screeninfo *fix, int con,
+			 struct fb_info *info) {
+
+	strcpy(fix->id,"Apollo Color8");
+	fix->smem_start=(char*)(FRAME_BUFFER_START+IO_BASE);
+	fix->smem_len=FRAME_BUFFER_LEN;
+	fix->type=FB_TYPE_PACKED_PIXELS;
+	fix->type_aux=0;
+	fix->visual=FB_VISUAL_MONO10;
+	fix->xpanstep=0;
+	fix->ypanstep=0;
+	fix->ywrapstep=0;
+        fix->line_length=128;
+
+	return 0;
+
+}
+        
+static int dn_fb_get_var(struct fb_var_screeninfo *var, int con,
+			 struct fb_info *info) {
+		
+	var->xres=1024;
+	var->yres=800;
+	var->xres_virtual=1024;
+	var->yres_virtual=1024;
+	var->xoffset=0;
+	var->yoffset=0;
+	var->bits_per_pixel=1;
+	var->grayscale=0;
+	var->nonstd=0;
+	var->activate=0;
+	var->height=-1;
+	var->width=-1;
+	var->pixclock=0;
+	var->left_margin=0;
+	var->right_margin=0;
+	var->hsync_len=0;
+	var->vsync_len=0;
+	var->sync=0;
+	var->vmode=FB_VMODE_NONINTERLACED;
+
+	return 0;
+
+}
+
+static int dn_fb_set_var(struct fb_var_screeninfo *var, int con,
+			 struct fb_info *info) {
+
+        printk("fb_set_var\n");
+	if(var->xres!=1024) 
+		return -EINVAL;
+	if(var->yres!=800)
+		return -EINVAL;
+	if(var->xres_virtual!=1024)
+		return -EINVAL;
+	if(var->yres_virtual!=1024)
+		return -EINVAL;
+	if(var->xoffset!=0)
+		return -EINVAL;
+	if(var->yoffset!=0)
+		return -EINVAL;
+	if(var->bits_per_pixel!=1)
+		return -EINVAL;
+	if(var->grayscale!=0)
+		return -EINVAL;
+	if(var->nonstd!=0)
+		return -EINVAL;
+	if(var->activate!=0)
+		return -EINVAL;
+	if(var->pixclock!=0)
+		return -EINVAL;
+	if(var->left_margin!=0)
+		return -EINVAL;
+	if(var->right_margin!=0)
+		return -EINVAL;
+	if(var->hsync_len!=0)
+		return -EINVAL;
+	if(var->vsync_len!=0)
+		return -EINVAL;
+	if(var->sync!=0)
+		return -EINVAL;
+	if(var->vmode!=FB_VMODE_NONINTERLACED)
+		return -EINVAL;
+
+	return 0;
+
+}
+
+static int dn_fb_get_cmap(struct fb_cmap *cmap,int kspc,int con,
+			  struct fb_info *info) {
+
+	printk("get cmap not supported\n");
+
+	return -EINVAL;
+}
+
+static int dn_fb_set_cmap(struct fb_cmap *cmap,int kspc,int con,
+			  struct fb_info *info) {
+
+	printk("set cmap not supported\n");
+
+	return -EINVAL;
+
+}
+
+static int dn_fb_pan_display(struct fb_var_screeninfo *var, int con,
+			     struct fb_info *info) {
+
+	printk("panning not supported\n");
+
+	return -EINVAL;
+
+}
+
+static int dn_fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
+		    unsigned long arg, int con, struct fb_info *info) {
+
+	printk("no IOCTLs as of yet.\n");
+
+	return -EINVAL;
+
+}
+
+static void dn_fb_set_disp(int con, struct fb_info *info) {
+
+  struct fb_fix_screeninfo fix;
+
+  dn_fb_get_fix(&fix,con, info);
+  if(con==-1) 
+    con=0;
+
+   disp[con].screen_base = (u_char *)fix.smem_start;
+printk("screenbase: %p\n",fix.smem_start);
+   disp[con].visual = fix.visual;
+   disp[con].type = fix.type;
+   disp[con].type_aux = fix.type_aux;
+   disp[con].ypanstep = fix.ypanstep;
+   disp[con].ywrapstep = fix.ywrapstep;
+   disp[con].can_soft_blank = 1;
+   disp[con].inverse = 0;
+   disp[con].line_length = fix.line_length;
+   disp[con].dispsw = &dispsw_apollofb;
+}
+  
+unsigned long dn_fb_init(unsigned long mem_start) {
+
+	int err;
+       
+printk("dn_fb_init\n");
+
+	fb_info.changevar=NULL;
+	strcpy(&fb_info.modename[0],dn_fb_name);
+	fb_info.fontname[0]=0;
+	fb_info.disp=disp;
+	fb_info.switch_con=&dnfbcon_switch;
+	fb_info.updatevar=&dnfbcon_updatevar;
+	fb_info.blank=&dnfbcon_blank;	
+	fb_info.node = -1;
+	fb_info.fbops = &dn_fb_ops;
+	
+printk("dn_fb_init: register\n");
+	err=register_framebuffer(&fb_info);
+	if(err < 0) {
+		panic("unable to register apollo frame buffer\n");
+	}
+ 
+	/* now we have registered we can safely setup the hardware */
+
+        outb(RESET_CREG,  AP_CONTROL_3A);
+        outb(RESET_CREG,  AP_CONTROL_3B);
+        outw(0x0,  AP_WRITE_ENABLE);
+        outb(NORMAL_MODE, AP_CONTROL_0); 
+        outb((AD_BLT | DST_EQ_SRC | NORM_CREG1),  AP_CONTROL_1);
+        outb(0,  AP_CONTROL_2A);
+        outb(S_DATA_PLN,  AP_CONTROL_2B);
+        outw(SWAP(0x3), AP_ROP_1);
+
+        printk("apollo frame buffer alive and kicking !\n");
+
+        dn_fb_get_var(&disp[0].var,0, &fb_info);
+
+	dn_fb_set_disp(-1, &fb_info);
+
+	return mem_start;
+
+}	
+
+	
+static int dnfbcon_switch(int con,  struct fb_info *info) { 
+
+	currcon=con;
+	
+	return 0;
+
+}
+
+static int dnfbcon_updatevar(int con,  struct fb_info *info) {
+
+	return 0;
+
+}
+
+static void dnfbcon_blank(int blank,  struct fb_info *info) {
+
+	if(blank)  {
+        	outb(0x0,  AP_CONTROL_3A);
+	}
+	else {
+	        outb(0x1,  AP_CONTROL_3A);
+	}
+
+	return ;
+
+}
+
+void dn_video_setup(char *options, int *ints) {
+	
+	return;
+
+}
+
+void dn_bitblt(struct display *p,int x_src,int y_src, int x_dest, int y_dest,
+               int x_count, int y_count) {
+
+	int incr,y_delta,pre_read=0,x_end,x_word_count;
+	ushort *src,dummy;
+	uint start_mask,end_mask,dest;
+	short i,j;
+
+	incr=(y_dest<=y_src) ? 1 : -1 ;
+
+	src=(ushort *)(p->screen_base+ y_src*p->next_line+(x_src >> 4));
+	dest=y_dest*(p->next_line >> 1)+(x_dest >> 4);
+	
+	if(incr>0) {
+		y_delta=(p->next_line*8)-x_src-x_count;
+		x_end=x_dest+x_count-1;
+		x_word_count=(x_end>>4) - (x_dest >> 4) + 1;
+		start_mask=0xffff0000 >> (x_dest & 0xf);
+		end_mask=0x7ffff >> (x_end & 0xf);
+		outb((((x_dest & 0xf) - (x_src &0xf))  % 16)|(0x4 << 5),AP_CONTROL_0);
+		if((x_dest & 0xf) < (x_src & 0xf))
+			pre_read=1;
+	}
+	else {
+		y_delta=-((p->next_line*8)-x_src-x_count);
+		x_end=x_dest-x_count+1;
+		x_word_count=(x_dest>>4) - (x_end >> 4) + 1;
+		start_mask=0x7ffff >> (x_dest & 0xf);
+		end_mask=0xffff0000 >> (x_end & 0xf);
+		outb(((-((x_src & 0xf) - (x_dest &0xf))) % 16)|(0x4 << 5),AP_CONTROL_0);
+		if((x_dest & 0xf) > (x_src & 0xf))
+			pre_read=1;
+	}
+
+	for(i=0;i<y_count;i++) {
+			
+		if(pre_read) {
+			dummy=*src;
+			src+=incr;
+		}
+
+		if(x_word_count) {
+			outb(start_mask,AP_WRITE_ENABLE);
+			*src=dest;
+			src+=incr;
+			dest+=incr;
+			outb(0,AP_WRITE_ENABLE);
+
+			for(j=1;j<(x_word_count-1);j++) {
+				*src=dest;
+				src+=incr;	
+				dest+=incr;
+			}
+
+			outb(start_mask,AP_WRITE_ENABLE);
+			*src=dest;
+			dest+=incr;
+			src+=incr;
+		}
+		else {
+			outb(start_mask | end_mask, AP_WRITE_ENABLE);
+			*src=dest;
+			dest+=incr;
+			src+=incr;
+		}
+		src+=(y_delta/16);
+		dest+=(y_delta/16);
+	}
+	outb(NORMAL_MODE,AP_CONTROL_0);
+}
+
+static void bmove_apollofb(struct display *p, int sy, int sx, int dy, int dx,
+		      int height, int width)
+{
+
+#ifdef USE_DN_ACCEL
+    dn_bitblt(p,sx,sy*p->fontheight,dx,dy*p->fontheight,width*p->fontwidth,
+	      height*p->fontheight);
+#else
+    u_char *src, *dest;
+    u_int rows;
+
+    if (sx == 0 && dx == 0 && width == p->next_line) {
+	src = p->screen_base+sy*p->fontheight*width;
+	dest = p->screen_base+dy*p->fontheight*width;
+	mymemmove(dest, src, height*p->fontheight*width);
+    } else if (dy <= sy) {
+	src = p->screen_base+sy*p->fontheight*p->next_line+sx;
+	dest = p->screen_base+dy*p->fontheight*p->next_line+dx;
+	for (rows = height*p->fontheight; rows--;) {
+	    mymemmove(dest, src, width);
+	    src += p->next_line;
+	    dest += p->next_line;
+	}
+    } else {
+	src = p->screen_base+((sy+height)*p->fontheight-1)*p->next_line+sx;
+	dest = p->screen_base+((dy+height)*p->fontheight-1)*p->next_line+dx;
+	for (rows = height*p->fontheight; rows--;) {
+	    mymemmove(dest, src, width);
+	    src -= p->next_line;
+	    dest -= p->next_line;
+	}
+    }
+#endif
+}
+
+static void clear_apollofb(struct vc_data *conp, struct display *p, int sy, int sx,
+		      int height, int width)
+{
+    u_char *dest;
+    u_int rows;
+
+    dest = p->screen_base+sy*p->fontheight*p->next_line+sx;
+
+    if (sx == 0 && width == p->next_line)
+	if (attr_reverse(p,conp))
+	    mymemset(dest, height*p->fontheight*width);
+	else
+	    mymemclear(dest, height*p->fontheight*width);
+    else
+	for (rows = height*p->fontheight; rows--; dest += p->next_line)
+	    if (attr_reverse(p,conp))
+		mymemset(dest, width);
+	    else
+		mymemclear_small(dest, width);
+}
+
+static void putc_apollofb(struct vc_data *conp, struct display *p, int c, int yy,
+		     int xx)
+{
+    u_char *dest, *cdat;
+    u_int rows, bold, revs, underl;
+    u_char d;
+
+    c &= 0xff;
+
+    dest = p->screen_base+yy*p->fontheight*p->next_line+xx;
+    cdat = p->fontdata+c*p->fontheight;
+    bold = attr_bold(p,conp);
+    revs = attr_reverse(p,conp);
+    underl = attr_underline(p,conp);
+
+    for (rows = p->fontheight; rows--; dest += p->next_line) {
+	d = *cdat++;
+	if (underl && !rows)
+	    d = 0xff;
+	else if (bold)
+	    d |= d>>1;
+	if (revs)
+	    d = ~d;
+	*dest = d;
+    }
+}
+
+static void putcs_apollofb(struct vc_data *conp, struct display *p, const char *s,
+		      int count, int yy, int xx)
+{
+    u_char *dest, *dest0, *cdat;
+    u_int rows, bold, revs, underl;
+    u_char c, d;
+
+    dest0 = p->screen_base+yy*p->fontheight*p->next_line+xx;
+    bold = attr_bold(p,conp);
+    revs = attr_reverse(p,conp);
+    underl = attr_underline(p,conp);
+
+    while (count--) {
+	c = *s++;
+	dest = dest0++;
+	cdat = p->fontdata+c*p->fontheight;
+	for (rows = p->fontheight; rows--; dest += p->next_line) {
+	    d = *cdat++;
+	    if (underl && !rows)
+		d = 0xff;
+	    else if (bold)
+		d |= d>>1;
+	    if (revs)
+		d = ~d;
+	    *dest = d;
+	}
+    }
+}
+
+static void rev_char_apollofb(struct display *p, int xx, int yy)
+{
+    u_char *dest;
+    u_int rows;
+
+    dest = p->screen_base+yy*p->fontheight*p->next_line+xx;
+    for (rows = p->fontheight; rows--; dest += p->next_line)
+	*dest = ~*dest;
+}
+
+static struct display_switch dispsw_apollofb = {
+    fbcon_mfb_setup, bmove_apollofb, clear_apollofb,
+    putc_apollofb, putcs_apollofb, rev_char_apollofb
+};