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NetBSD/sys/dev/tc/tfb.c
nisimura 8a54846748 Fix errors in initializing the software copy of 256 entry colormap 
stored in device softc.  rasops_cmap[] array is orginazed in 256
iteration of 3 byte long RBG triplet, which does not match with
struct wsdisplay_cmap design.
2000-10-27 07:24:04 +00:00

900 lines
24 KiB
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/* $NetBSD: tfb.c,v 1.28 2000/10/27 07:24:04 nisimura Exp $ */
/*
* Copyright (c) 1998, 1999 Tohru Nishimura. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Tohru Nishimura
* for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: tfb.c,v 1.28 2000/10/27 07:24:04 nisimura Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/buf.h>
#include <sys/ioctl.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/rasops/rasops.h>
#include <dev/wsfont/wsfont.h>
#include <dev/tc/tcvar.h>
#include <dev/ic/bt463reg.h>
#include <dev/ic/bt431reg.h>
#include <uvm/uvm_extern.h>
#if defined(pmax)
#define machine_btop(x) mips_btop(x)
#define MACHINE_KSEG0_TO_PHYS(x) MIPS_KSEG0_TO_PHYS(x)
/*
* struct bt463reg {
* u_int8_t bt_lo;
* unsigned : 24;
* u_int8_t bt_hi;
* unsigned : 24;
* u_int8_t bt_reg;
* unsigned : 24;
* u_int8_t bt_cmap;
* };
*
* N.B. a pair of Bt431s are located adjascently.
* struct bt431twin {
* struct {
* u_int8_t u0; for sprite mask
* u_int8_t u1; for sprite image
* unsigned :16;
* } bt_lo;
* ...
*
* struct bt431reg {
* u_int16_t bt_lo;
* unsigned : 16;
* u_int16_t bt_hi;
* unsigned : 16;
* u_int16_t bt_ram;
* unsigned : 16;
* u_int16_t bt_ctl;
* };
*/
#define BYTE(base, index) *((u_int8_t *)(base) + ((index)<<2))
#define HALF(base, index) *((u_int16_t *)(base) + ((index)<<1))
#endif
#if defined(__alpha__) || defined(alpha)
#define machine_btop(x) alpha_btop(x)
#define MACHINE_KSEG0_TO_PHYS(x) ALPHA_K0SEG_TO_PHYS(x)
/*
* struct bt463reg {
* u_int32_t bt_lo;
* u_int32_t bt_hi;
* u_int32_t bt_reg;
* u_int32_t bt_cmap;
* };
*
* struct bt431reg {
* u_int32_t bt_lo;
* u_int32_t bt_hi;
* u_int32_t bt_ram;
* u_int32_t bt_ctl;
* };
*/
#define BYTE(base, index) *((u_int32_t *)(base) + (index))
#define HALF(base, index) *((u_int32_t *)(base) + (index))
#endif
/* Bt463 hardware registers */
#define bt_lo 0
#define bt_hi 1
#define bt_reg 2
#define bt_cmap 3
/* Bt431 hardware registers */
#define bt_ram 2
#define bt_ctl 3
#define SELECT463(vdac, regno) do { \
BYTE(vdac, bt_lo) = (regno) & 0x00ff; \
BYTE(vdac, bt_hi) = ((regno)& 0xff00) >> 8; \
tc_wmb(); \
} while (0)
#define TWIN(x) ((x) | ((x) << 8))
#define TWIN_LO(x) (twin = (x) & 0x00ff, (twin << 8) | twin)
#define TWIN_HI(x) (twin = (x) & 0xff00, twin | (twin >> 8))
#define SELECT431(curs, regno) do { \
HALF(curs, bt_lo) = TWIN(regno);\
HALF(curs, bt_hi) = 0; \
tc_wmb(); \
} while (0)
struct fb_devconfig {
vaddr_t dc_vaddr; /* memory space virtual base address */
paddr_t dc_paddr; /* memory space physical base address */
vsize_t dc_size; /* size of slot memory */
int dc_wid; /* width of frame buffer */
int dc_ht; /* height of frame buffer */
int dc_depth; /* depth, bits per pixel */
int dc_rowbytes; /* bytes in a FB scan line */
vaddr_t dc_videobase; /* base of flat frame buffer */
int dc_blanked; /* currently has video disabled */
struct rasops_info rinfo;
};
struct hwcmap256 {
#define CMAP_SIZE 256 /* R/G/B entries */
u_int8_t r[CMAP_SIZE];
u_int8_t g[CMAP_SIZE];
u_int8_t b[CMAP_SIZE];
};
struct hwcursor64 {
struct wsdisplay_curpos cc_pos;
struct wsdisplay_curpos cc_hot;
struct wsdisplay_curpos cc_size;
struct wsdisplay_curpos cc_magic;
#define CURSOR_MAX_SIZE 64
u_int8_t cc_color[6];
u_int64_t cc_image[64 + 64];
};
struct tfb_softc {
struct device sc_dev;
struct fb_devconfig *sc_dc; /* device configuration */
struct hwcmap256 sc_cmap; /* software copy of colormap */
struct hwcursor64 sc_cursor; /* software copy of cursor */
int sc_curenb; /* cursor sprite enabled */
int sc_changed; /* need update of colormap */
#define DATA_ENB_CHANGED 0x01 /* cursor enable changed */
#define DATA_CURCMAP_CHANGED 0x02 /* cursor colormap changed */
#define DATA_CURSHAPE_CHANGED 0x04 /* cursor size, image, mask changed */
#define DATA_CMAP_CHANGED 0x08 /* colormap changed */
#define DATA_ALL_CHANGED 0x0f
int nscreens;
};
#define TX_MAGIC_X 360
#define TX_MAGIC_Y 36
#define TX_BT463_OFFSET 0x040000
#define TX_BT431_OFFSET 0x040010
#define TX_CONTROL 0x040030
#define TX_MAP_REGISTER 0x040030
#define TX_PIP_OFFSET 0x0800c0
#define TX_SELECTION 0x100000
#define TX_8BPP_OFFSET 0x200000
#define TX_8BPP_SIZE 0x200000
#define TX_24BPP_OFFSET 0x400000
#define TX_24BPP_SIZE 0x600000
#define TX_VIDEO_ENABLE 0xa00000
#define TX_CTL_VIDEO_ON 0x80
#define TX_CTL_INT_ENA 0x40
#define TX_CTL_INT_PEND 0x20
#define TX_CTL_SEG_ENA 0x10
#define TX_CTL_SEG 0x0f
static int tfbmatch __P((struct device *, struct cfdata *, void *));
static void tfbattach __P((struct device *, struct device *, void *));
const struct cfattach tfb_ca = {
sizeof(struct tfb_softc), tfbmatch, tfbattach,
};
static void tfb_getdevconfig __P((tc_addr_t, struct fb_devconfig *));
static struct fb_devconfig tfb_console_dc;
static tc_addr_t tfb_consaddr;
static struct wsscreen_descr tfb_stdscreen = {
"std", 0, 0,
0, /* textops */
0, 0,
WSSCREEN_REVERSE
};
static const struct wsscreen_descr *_tfb_scrlist[] = {
&tfb_stdscreen,
};
static const struct wsscreen_list tfb_screenlist = {
sizeof(_tfb_scrlist) / sizeof(struct wsscreen_descr *), _tfb_scrlist
};
static int tfbioctl __P((void *, u_long, caddr_t, int, struct proc *));
static paddr_t tfbmmap __P((void *, off_t, int));
static int tfb_alloc_screen __P((void *, const struct wsscreen_descr *,
void **, int *, int *, long *));
static void tfb_free_screen __P((void *, void *));
static int tfb_show_screen __P((void *, void *, int,
void (*) (void *, int, int), void *));
static const struct wsdisplay_accessops tfb_accessops = {
tfbioctl,
tfbmmap,
tfb_alloc_screen,
tfb_free_screen,
tfb_show_screen,
0 /* load_font */
};
int tfb_cnattach __P((tc_addr_t));
static int tfbintr __P((void *));
static void tfbinit __P((struct fb_devconfig *));
static int get_cmap __P((struct tfb_softc *, struct wsdisplay_cmap *));
static int set_cmap __P((struct tfb_softc *, struct wsdisplay_cmap *));
static int set_cursor __P((struct tfb_softc *, struct wsdisplay_cursor *));
static int get_cursor __P((struct tfb_softc *, struct wsdisplay_cursor *));
static void set_curpos __P((struct tfb_softc *, struct wsdisplay_curpos *));
static void bt431_set_curpos __P((struct tfb_softc *));
/* bit order reverse */
static const u_int8_t flip[256] = {
0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff,
};
static int
tfbmatch(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct tc_attach_args *ta = aux;
if (strncmp("PMAG-RO ", ta->ta_modname, TC_ROM_LLEN) != 0
&& strncmp("PMAG-JA ", ta->ta_modname, TC_ROM_LLEN) != 0)
return (0);
return (1);
}
static void
tfb_getdevconfig(dense_addr, dc)
tc_addr_t dense_addr;
struct fb_devconfig *dc;
{
int i, cookie;
dc->dc_vaddr = dense_addr;
dc->dc_paddr = MACHINE_KSEG0_TO_PHYS(dc->dc_vaddr);
dc->dc_wid = 1280;
dc->dc_ht = 1024;
dc->dc_depth = 8;
dc->dc_rowbytes = 1280;
dc->dc_videobase = dc->dc_vaddr + TX_8BPP_OFFSET;
dc->dc_blanked = 0;
/* initialize colormap and cursor resource */
tfbinit(dc);
/* clear the screen */
for (i = 0; i < dc->dc_ht * dc->dc_rowbytes; i += sizeof(u_int32_t))
*(u_int32_t *)(dc->dc_videobase + i) = 0x0;
dc->rinfo.ri_flg = RI_CENTER;
dc->rinfo.ri_depth = dc->dc_depth;
dc->rinfo.ri_bits = (void *)dc->dc_videobase;
dc->rinfo.ri_width = dc->dc_wid;
dc->rinfo.ri_height = dc->dc_ht;
dc->rinfo.ri_stride = dc->dc_rowbytes;
wsfont_init();
/* prefer 8 pixel wide font */
if ((cookie = wsfont_find(NULL, 8, 0, 0)) <= 0)
cookie = wsfont_find(NULL, 0, 0, 0);
if (cookie <= 0) {
printf("tfb: font table is empty\n");
return;
}
if (wsfont_lock(cookie, &dc->rinfo.ri_font,
WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R) <= 0) {
printf("tfb: couldn't lock font\n");
return;
}
dc->rinfo.ri_wsfcookie = cookie;
rasops_init(&dc->rinfo, 34, 80);
/* XXX shouldn't be global */
tfb_stdscreen.nrows = dc->rinfo.ri_rows;
tfb_stdscreen.ncols = dc->rinfo.ri_cols;
tfb_stdscreen.textops = &dc->rinfo.ri_ops;
tfb_stdscreen.capabilities = dc->rinfo.ri_caps;
}
static void
tfbattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct tfb_softc *sc = (struct tfb_softc *)self;
struct tc_attach_args *ta = aux;
struct wsemuldisplaydev_attach_args waa;
struct hwcmap256 *cm;
const u_int8_t *p;
int console, index;
console = (ta->ta_addr == tfb_consaddr);
if (console) {
sc->sc_dc = &tfb_console_dc;
sc->nscreens = 1;
}
else {
sc->sc_dc = (struct fb_devconfig *)
malloc(sizeof(struct fb_devconfig), M_DEVBUF, M_WAITOK);
tfb_getdevconfig(ta->ta_addr, sc->sc_dc);
}
printf(": %d x %d, 8,24bpp\n", sc->sc_dc->dc_wid, sc->sc_dc->dc_ht);
cm = &sc->sc_cmap;
p = rasops_cmap;
for (index = 0; index < CMAP_SIZE; index++, p += 3) {
cm->r[index] = p[0];
cm->g[index] = p[1];
cm->b[index] = p[2];
}
sc->sc_cursor.cc_magic.x = TX_MAGIC_X;
sc->sc_cursor.cc_magic.y = TX_MAGIC_Y;
tc_intr_establish(parent, ta->ta_cookie, IPL_TTY, tfbintr, sc);
*(u_int8_t *)(sc->sc_dc->dc_vaddr + TX_CONTROL) &= ~0x40;
*(u_int8_t *)(sc->sc_dc->dc_vaddr + TX_CONTROL) |= 0x40;
waa.console = console;
waa.scrdata = &tfb_screenlist;
waa.accessops = &tfb_accessops;
waa.accesscookie = sc;
config_found(self, &waa, wsemuldisplaydevprint);
}
static int
tfbioctl(v, cmd, data, flag, p)
void *v;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
struct tfb_softc *sc = v;
struct fb_devconfig *dc = sc->sc_dc;
int turnoff;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_TX;
return (0);
case WSDISPLAYIO_GINFO:
#define wsd_fbip ((struct wsdisplay_fbinfo *)data)
wsd_fbip->height = sc->sc_dc->dc_ht;
wsd_fbip->width = sc->sc_dc->dc_wid;
wsd_fbip->depth = sc->sc_dc->dc_depth;
wsd_fbip->cmsize = CMAP_SIZE;
#undef fbt
return (0);
case WSDISPLAYIO_GETCMAP:
return get_cmap(sc, (struct wsdisplay_cmap *)data);
case WSDISPLAYIO_PUTCMAP:
return set_cmap(sc, (struct wsdisplay_cmap *)data);
case WSDISPLAYIO_SVIDEO:
turnoff = *(int *)data == WSDISPLAYIO_VIDEO_OFF;
if ((dc->dc_blanked == 0) ^ turnoff) {
dc->dc_blanked = turnoff;
#if 0 /* XXX later XXX */
To turn off;
- clear the MSB of TX control register; &= ~0x80,
- assign Bt431 register #0 with value 0x4 to hide sprite cursor.
#endif /* XXX XXX XXX */
}
return (0);
case WSDISPLAYIO_GVIDEO:
*(u_int *)data = dc->dc_blanked ?
WSDISPLAYIO_VIDEO_OFF : WSDISPLAYIO_VIDEO_ON;
return (0);
case WSDISPLAYIO_GCURPOS:
*(struct wsdisplay_curpos *)data = sc->sc_cursor.cc_pos;
return (0);
case WSDISPLAYIO_SCURPOS:
set_curpos(sc, (struct wsdisplay_curpos *)data);
bt431_set_curpos(sc);
return (0);
case WSDISPLAYIO_GCURMAX:
((struct wsdisplay_curpos *)data)->x =
((struct wsdisplay_curpos *)data)->y = CURSOR_MAX_SIZE;
return (0);
case WSDISPLAYIO_GCURSOR:
return get_cursor(sc, (struct wsdisplay_cursor *)data);
case WSDISPLAYIO_SCURSOR:
return set_cursor(sc, (struct wsdisplay_cursor *)data);
}
return (ENOTTY);
}
static paddr_t
tfbmmap(v, offset, prot)
void *v;
off_t offset;
int prot;
{
struct tfb_softc *sc = v;
if (offset >= TX_8BPP_SIZE || offset < 0)
return (-1);
return machine_btop(sc->sc_dc->dc_paddr + TX_8BPP_OFFSET + offset);
}
static int
tfb_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
void *v;
const struct wsscreen_descr *type;
void **cookiep;
int *curxp, *curyp;
long *attrp;
{
struct tfb_softc *sc = v;
long defattr;
if (sc->nscreens > 0)
return (ENOMEM);
*cookiep = &sc->sc_dc->rinfo; /* one and only for now */
*curxp = 0;
*curyp = 0;
(*sc->sc_dc->rinfo.ri_ops.alloc_attr)(&sc->sc_dc->rinfo, 0, 0, 0, &defattr);
*attrp = defattr;
sc->nscreens++;
return (0);
}
static void
tfb_free_screen(v, cookie)
void *v;
void *cookie;
{
struct tfb_softc *sc = v;
if (sc->sc_dc == &tfb_console_dc)
panic("tfb_free_screen: console");
sc->nscreens--;
}
static int
tfb_show_screen(v, cookie, waitok, cb, cbarg)
void *v;
void *cookie;
int waitok;
void (*cb) __P((void *, int, int));
void *cbarg;
{
return (0);
}
/* EXPORT */ int
tfb_cnattach(addr)
tc_addr_t addr;
{
struct fb_devconfig *dcp = &tfb_console_dc;
long defattr;
tfb_getdevconfig(addr, dcp);
(*dcp->rinfo.ri_ops.alloc_attr)(&dcp->rinfo, 0, 0, 0, &defattr);
wsdisplay_cnattach(&tfb_stdscreen, &dcp->rinfo, 0, 0, defattr);
tfb_consaddr = addr;
return (0);
}
static int
tfbintr(arg)
void *arg;
{
struct tfb_softc *sc = arg;
caddr_t tfbbase = (caddr_t)sc->sc_dc->dc_vaddr;
void *vdac, *curs;
int v;
*(u_int8_t *)(tfbbase + TX_CONTROL) &= ~0x40;
if (sc->sc_changed == 0)
goto done;
vdac = (void *)(tfbbase + TX_BT463_OFFSET);
curs = (void *)(tfbbase + TX_BT431_OFFSET);
v = sc->sc_changed;
sc->sc_changed = 0;
if (v & DATA_ENB_CHANGED) {
SELECT431(curs, BT431_REG_COMMAND);
HALF(curs, bt_ctl) = (sc->sc_curenb) ? 0x4444 : 0x0404;
}
if (v & DATA_CURCMAP_CHANGED) {
u_int8_t *cp = sc->sc_cursor.cc_color;
SELECT463(vdac, BT463_IREG_CURSOR_COLOR_0);
BYTE(vdac, bt_reg) = cp[1]; tc_wmb();
BYTE(vdac, bt_reg) = cp[3]; tc_wmb();
BYTE(vdac, bt_reg) = cp[5]; tc_wmb();
BYTE(vdac, bt_reg) = cp[0]; tc_wmb();
BYTE(vdac, bt_reg) = cp[2]; tc_wmb();
BYTE(vdac, bt_reg) = cp[4]; tc_wmb();
BYTE(vdac, bt_reg) = cp[1]; tc_wmb();
BYTE(vdac, bt_reg) = cp[3]; tc_wmb();
BYTE(vdac, bt_reg) = cp[5]; tc_wmb();
BYTE(vdac, bt_reg) = cp[1]; tc_wmb();
BYTE(vdac, bt_reg) = cp[3]; tc_wmb();
BYTE(vdac, bt_reg) = cp[5]; tc_wmb();
}
if (v & DATA_CURSHAPE_CHANGED) {
u_int8_t *ip, *mp, img, msk;
int bcnt;
ip = (u_int8_t *)sc->sc_cursor.cc_image;
mp = (u_int8_t *)(sc->sc_cursor.cc_image + CURSOR_MAX_SIZE);
bcnt = 0;
SELECT431(curs, BT431_REG_CRAM_BASE);
/* 64 pixel scan line is consisted with 16 byte cursor ram */
while (bcnt < sc->sc_cursor.cc_size.y * 16) {
/* pad right half 32 pixel when smaller than 33 */
if ((bcnt & 0x8) && sc->sc_cursor.cc_size.x < 33) {
HALF(curs, bt_ram) = 0;
tc_wmb();
}
else {
img = *ip++;
msk = *mp++;
img &= msk; /* cookie off image */
HALF(curs, bt_ram)
= (flip[img] << 8) | flip[msk];
tc_wmb();
}
bcnt += 2;
}
/* pad unoccupied scan lines */
while (bcnt < CURSOR_MAX_SIZE * 16) {
HALF(curs, bt_ram) = 0;
tc_wmb();
bcnt += 2;
}
}
if (v & DATA_CMAP_CHANGED) {
struct hwcmap256 *cm = &sc->sc_cmap;
int index;
SELECT463(vdac, BT463_IREG_CPALETTE_RAM);
for (index = 0; index < CMAP_SIZE; index++) {
BYTE(vdac, bt_cmap) = cm->r[index];
BYTE(vdac, bt_cmap) = cm->g[index];
BYTE(vdac, bt_cmap) = cm->b[index];
}
}
done:
*(u_int8_t *)(tfbbase + TX_CONTROL) &= ~0x40; /* !? Eeeh !? */
*(u_int8_t *)(tfbbase + TX_CONTROL) |= 0x40;
return (1);
}
static void
tfbinit(dc)
struct fb_devconfig *dc;
{
caddr_t tfbbase = (caddr_t)dc->dc_vaddr;
void *vdac = (void *)(tfbbase + TX_BT463_OFFSET);
void *curs = (void *)(tfbbase + TX_BT431_OFFSET);
const u_int8_t *p;
int i;
SELECT463(vdac, BT463_IREG_COMMAND_0);
BYTE(vdac, bt_reg) = 0x40; tc_wmb(); /* CMD 0 */
BYTE(vdac, bt_reg) = 0x46; tc_wmb(); /* CMD 1 */
BYTE(vdac, bt_reg) = 0xc0; tc_wmb(); /* CMD 2 */
BYTE(vdac, bt_reg) = 0; tc_wmb(); /* !? 204 !? */
BYTE(vdac, bt_reg) = 0xff; tc_wmb(); /* plane 0:7 */
BYTE(vdac, bt_reg) = 0xff; tc_wmb(); /* plane 8:15 */
BYTE(vdac, bt_reg) = 0xff; tc_wmb(); /* plane 16:23 */
BYTE(vdac, bt_reg) = 0xff; tc_wmb(); /* plane 24:27 */
BYTE(vdac, bt_reg) = 0x00; tc_wmb(); /* blink 0:7 */
BYTE(vdac, bt_reg) = 0x00; tc_wmb(); /* blink 8:15 */
BYTE(vdac, bt_reg) = 0x00; tc_wmb(); /* blink 16:23 */
BYTE(vdac, bt_reg) = 0x00; tc_wmb(); /* blink 24:27 */
BYTE(vdac, bt_reg) = 0x00; tc_wmb();
#if 0 /* XXX ULTRIX does initialize 16 entry window type here XXX */
{
static u_int32_t windowtype[BT463_IREG_WINDOW_TYPE_TABLE] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
};
SELECT463(vdac, BT463_IREG_WINDOW_TYPE_TABLE);
for (i = 0; i < BT463_NWTYPE_ENTRIES; i++) {
BYTE(vdac, bt_reg) = windowtype[i]; /* 0:7 */
BYTE(vdac, bt_reg) = windowtype[i] >> 8; /* 8:15 */
BYTE(vdac, bt_reg) = windowtype[i] >> 16; /* 16:23 */
}
}
#endif
SELECT463(vdac, BT463_IREG_CPALETTE_RAM);
p = rasops_cmap;
for (i = 0; i < 256; i++, p += 3) {
BYTE(vdac, bt_cmap) = p[0]; tc_wmb();
BYTE(vdac, bt_cmap) = p[1]; tc_wmb();
BYTE(vdac, bt_cmap) = p[2]; tc_wmb();
}
/* !? Eeeh !? */
SELECT463(vdac, 0x0100 /* BT463_IREG_CURSOR_COLOR_0 */);
for (i = 0; i < 256; i++) {
BYTE(vdac, bt_cmap) = i; tc_wmb();
BYTE(vdac, bt_cmap) = i; tc_wmb();
BYTE(vdac, bt_cmap) = i; tc_wmb();
}
SELECT431(curs, BT431_REG_COMMAND);
HALF(curs, bt_ctl) = 0x0404; tc_wmb();
HALF(curs, bt_ctl) = 0; /* XLO */ tc_wmb();
HALF(curs, bt_ctl) = 0; /* XHI */ tc_wmb();
HALF(curs, bt_ctl) = 0; /* YLO */ tc_wmb();
HALF(curs, bt_ctl) = 0; /* YHI */ tc_wmb();
HALF(curs, bt_ctl) = 0; /* XWLO */ tc_wmb();
HALF(curs, bt_ctl) = 0; /* XWHI */ tc_wmb();
HALF(curs, bt_ctl) = 0; /* WYLO */ tc_wmb();
HALF(curs, bt_ctl) = 0; /* WYLO */ tc_wmb();
HALF(curs, bt_ctl) = 0; /* WWLO */ tc_wmb();
HALF(curs, bt_ctl) = 0; /* WWHI */ tc_wmb();
HALF(curs, bt_ctl) = 0; /* WHLO */ tc_wmb();
HALF(curs, bt_ctl) = 0; /* WHHI */ tc_wmb();
SELECT431(curs, BT431_REG_CRAM_BASE);
for (i = 0; i < 512; i++) {
HALF(curs, bt_ram) = 0; tc_wmb();
}
}
static int
get_cmap(sc, p)
struct tfb_softc *sc;
struct wsdisplay_cmap *p;
{
u_int index = p->index, count = p->count;
if (index >= CMAP_SIZE || (index + count) > CMAP_SIZE)
return (EINVAL);
if (!uvm_useracc(p->red, count, B_WRITE) ||
!uvm_useracc(p->green, count, B_WRITE) ||
!uvm_useracc(p->blue, count, B_WRITE))
return (EFAULT);
copyout(&sc->sc_cmap.r[index], p->red, count);
copyout(&sc->sc_cmap.g[index], p->green, count);
copyout(&sc->sc_cmap.b[index], p->blue, count);
return (0);
}
static int
set_cmap(sc, p)
struct tfb_softc *sc;
struct wsdisplay_cmap *p;
{
u_int index = p->index, count = p->count;
if (index >= CMAP_SIZE || (index + count) > CMAP_SIZE)
return (EINVAL);
if (!uvm_useracc(p->red, count, B_READ) ||
!uvm_useracc(p->green, count, B_READ) ||
!uvm_useracc(p->blue, count, B_READ))
return (EFAULT);
copyin(p->red, &sc->sc_cmap.r[index], count);
copyin(p->green, &sc->sc_cmap.g[index], count);
copyin(p->blue, &sc->sc_cmap.b[index], count);
sc->sc_changed |= DATA_CMAP_CHANGED;
return (0);
}
static int
set_cursor(sc, p)
struct tfb_softc *sc;
struct wsdisplay_cursor *p;
{
#define cc (&sc->sc_cursor)
int v, index, count, icount;
v = p->which;
if (v & WSDISPLAY_CURSOR_DOCMAP) {
index = p->cmap.index;
count = p->cmap.count;
if (index >= 2 || (index + count) > 2)
return (EINVAL);
if (!uvm_useracc(p->cmap.red, count, B_READ) ||
!uvm_useracc(p->cmap.green, count, B_READ) ||
!uvm_useracc(p->cmap.blue, count, B_READ))
return (EFAULT);
}
if (v & WSDISPLAY_CURSOR_DOSHAPE) {
if (p->size.x > CURSOR_MAX_SIZE || p->size.y > CURSOR_MAX_SIZE)
return (EINVAL);
icount = ((p->size.x < 33) ? 4 : 8) * p->size.y;
if (!uvm_useracc(p->image, icount, B_READ) ||
!uvm_useracc(p->mask, icount, B_READ))
return (EFAULT);
}
if (v & (WSDISPLAY_CURSOR_DOPOS | WSDISPLAY_CURSOR_DOCUR)) {
if (v & WSDISPLAY_CURSOR_DOCUR)
cc->cc_hot = p->hot;
if (v & WSDISPLAY_CURSOR_DOPOS)
set_curpos(sc, &p->pos);
bt431_set_curpos(sc);
}
sc->sc_changed = 0;
if (v & WSDISPLAY_CURSOR_DOCUR) {
sc->sc_curenb = p->enable;
sc->sc_changed |= DATA_ENB_CHANGED;
}
if (v & WSDISPLAY_CURSOR_DOCMAP) {
copyin(p->cmap.red, &cc->cc_color[index], count);
copyin(p->cmap.green, &cc->cc_color[index + 2], count);
copyin(p->cmap.blue, &cc->cc_color[index + 4], count);
sc->sc_changed |= DATA_CURCMAP_CHANGED;
}
if (v & WSDISPLAY_CURSOR_DOSHAPE) {
cc->cc_size = p->size;
memset(cc->cc_image, 0, sizeof cc->cc_image);
copyin(p->image, cc->cc_image, icount);
copyin(p->mask, cc->cc_image+CURSOR_MAX_SIZE, icount);
sc->sc_changed |= DATA_CURSHAPE_CHANGED;
}
return (0);
#undef cc
}
static int
get_cursor(sc, p)
struct tfb_softc *sc;
struct wsdisplay_cursor *p;
{
return (ENOTTY); /* XXX */
}
static void
set_curpos(sc, curpos)
struct tfb_softc *sc;
struct wsdisplay_curpos *curpos;
{
struct fb_devconfig *dc = sc->sc_dc;
int x = curpos->x, y = curpos->y;
if (y < 0)
y = 0;
else if (y > dc->dc_ht)
y = dc->dc_ht;
if (x < 0)
x = 0;
else if (x > dc->dc_wid)
x = dc->dc_wid;
sc->sc_cursor.cc_pos.x = x;
sc->sc_cursor.cc_pos.y = y;
}
static void
bt431_set_curpos(sc)
struct tfb_softc *sc;
{
caddr_t tfbbase = (caddr_t)sc->sc_dc->dc_vaddr;
void *curs = (void *)(tfbbase + TX_BT431_OFFSET);
u_int16_t twin;
int x, y, s;
x = sc->sc_cursor.cc_pos.x - sc->sc_cursor.cc_hot.x;
y = sc->sc_cursor.cc_pos.y - sc->sc_cursor.cc_hot.y;
x += sc->sc_cursor.cc_magic.x;
y += sc->sc_cursor.cc_magic.y;
s = spltty();
SELECT431(curs, BT431_REG_CURSOR_X_LOW);
HALF(curs, bt_ctl) = TWIN_LO(x); tc_wmb();
HALF(curs, bt_ctl) = TWIN_HI(x); tc_wmb();
HALF(curs, bt_ctl) = TWIN_LO(y); tc_wmb();
HALF(curs, bt_ctl) = TWIN_HI(y); tc_wmb();
splx(s);
}
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