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NetBSD/sys/dev/tc/xcfb.c
nisimura 7b3b03bea6 Enable 'WSSCREEN_REVERSE' scr-capability.
1999-10-19 00:49:33 +00:00

776 lines
20 KiB
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/* $NetBSD: xcfb.c,v 1.12 1999/10/19 00:49:33 nisimura Exp $ */
/*
* Copyright (c) 1998 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: xcfb.c,v 1.12 1999/10/19 00:49:33 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 <vm/vm.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/rcons/raster.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wscons_raster.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/tc/tcvar.h>
#include <dev/tc/ioasicreg.h>
#include <dev/ic/ims332reg.h>
#include <uvm/uvm_extern.h>
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 */
struct raster dc_raster; /* raster description */
struct rcons dc_rcons; /* raster blitter control info */
int dc_blanked; /* currently has video disabled */
};
struct hwcmap256 {
#define CMAP_SIZE 256 /* 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; /* not used by PMAG-DV */
#define CURSOR_MAX_SIZE 64
u_int8_t cc_color[6];
u_int64_t cc_image[64 + 64];
};
#define XCFB_FB_OFFSET 0x2000000 /* from module's base */
#define XCFB_FB_SIZE 0x100000 /* frame buffer size */
#define IMS332_HIGH (IOASIC_SLOT_5_START)
#define IMS332_RLOW (IOASIC_SLOT_7_START)
#define IMS332_WLOW (IOASIC_SLOT_7_START + 0x20000)
struct xcfb_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 */
/* XXX MAXINE can take PMAG-DV virtical retrace interrupt XXX */
int nscreens;
/* cursor coordiate is located at upper-left corner */
int sc_csr; /* software copy of IMS332 CSR A */
};
int xcfbmatch __P((struct device *, struct cfdata *, void *));
void xcfbattach __P((struct device *, struct device *, void *));
struct cfattach xcfb_ca = {
sizeof(struct xcfb_softc), xcfbmatch, xcfbattach,
};
void xcfb_getdevconfig __P((tc_addr_t, struct fb_devconfig *));
struct fb_devconfig xcfb_console_dc;
tc_addr_t xcfb_consaddr;
struct wsdisplay_emulops xcfb_emulops = {
rcons_cursor,
rcons_mapchar,
rcons_putchar,
rcons_copycols,
rcons_erasecols,
rcons_copyrows,
rcons_eraserows,
rcons_alloc_attr
};
struct wsscreen_descr xcfb_stdscreen = {
"std",
0, 0, /* will be filled in -- XXX shouldn't, it's global */
&xcfb_emulops,
0, 0,
WSSCREEN_REVERSE
};
const struct wsscreen_descr *_xcfb_scrlist[] = {
&xcfb_stdscreen,
};
struct wsscreen_list xcfb_screenlist = {
sizeof(_xcfb_scrlist) / sizeof(struct wsscreen_descr *), _xcfb_scrlist
};
int xcfbioctl __P((void *, u_long, caddr_t, int, struct proc *));
int xcfbmmap __P((void *, off_t, int));
int xcfb_alloc_screen __P((void *, const struct wsscreen_descr *,
void **, int *, int *, long *));
void xcfb_free_screen __P((void *, void *));
void xcfb_show_screen __P((void *, void *));
struct wsdisplay_accessops xcfb_accessops = {
xcfbioctl,
xcfbmmap,
xcfb_alloc_screen,
xcfb_free_screen,
xcfb_show_screen,
0 /* load_font */
};
int xcfb_cnattach __P((tc_addr_t));
int xcfbintr __P((void *));
void xcfbinit __P((struct fb_devconfig *));
void xcfb_screenblank __P((struct xcfb_softc *));
static int set_cmap __P((struct xcfb_softc *, struct wsdisplay_cmap *));
static int get_cmap __P((struct xcfb_softc *, struct wsdisplay_cmap *));
static int set_cursor __P((struct xcfb_softc *, struct wsdisplay_cursor *));
static int get_cursor __P((struct xcfb_softc *, struct wsdisplay_cursor *));
static void set_curpos __P((struct xcfb_softc *, struct wsdisplay_curpos *));
void ims332_loadcmap __P((struct hwcmap256 *));
void ims332_set_cursor __P((struct xcfb_softc *));
void ims332_set_curpos __P((struct xcfb_softc *));
void ims332_load_curcmap __P((struct xcfb_softc *));
void ims332_load_curshape __P((struct xcfb_softc *));
u_int32_t ims332_read_reg __P((int));
void ims332_write_reg __P((int, u_int32_t));
extern long ioasic_base; /* XXX */
/*
* Compose 2 bit/pixel cursor image.
* M M M M I I I I M I M I M I M I
* [ before ] [ after ]
* 3 2 1 0 3 2 1 0 3 3 2 2 1 1 0 0
* 7 6 5 4 7 6 5 4 7 7 6 6 5 5 4 4
*/
const static u_int8_t shuffle[256] = {
0x00, 0x01, 0x04, 0x05, 0x10, 0x11, 0x14, 0x15,
0x40, 0x41, 0x44, 0x45, 0x50, 0x51, 0x54, 0x55,
0x02, 0x03, 0x06, 0x07, 0x12, 0x13, 0x16, 0x17,
0x42, 0x43, 0x46, 0x47, 0x52, 0x53, 0x56, 0x57,
0x08, 0x09, 0x0c, 0x0d, 0x18, 0x19, 0x1c, 0x1d,
0x48, 0x49, 0x4c, 0x4d, 0x58, 0x59, 0x5c, 0x5d,
0x0a, 0x0b, 0x0e, 0x0f, 0x1a, 0x1b, 0x1e, 0x1f,
0x4a, 0x4b, 0x4e, 0x4f, 0x5a, 0x5b, 0x5e, 0x5f,
0x20, 0x21, 0x24, 0x25, 0x30, 0x31, 0x34, 0x35,
0x60, 0x61, 0x64, 0x65, 0x70, 0x71, 0x74, 0x75,
0x22, 0x23, 0x26, 0x27, 0x32, 0x33, 0x36, 0x37,
0x62, 0x63, 0x66, 0x67, 0x72, 0x73, 0x76, 0x77,
0x28, 0x29, 0x2c, 0x2d, 0x38, 0x39, 0x3c, 0x3d,
0x68, 0x69, 0x6c, 0x6d, 0x78, 0x79, 0x7c, 0x7d,
0x2a, 0x2b, 0x2e, 0x2f, 0x3a, 0x3b, 0x3e, 0x3f,
0x6a, 0x6b, 0x6e, 0x6f, 0x7a, 0x7b, 0x7e, 0x7f,
0x80, 0x81, 0x84, 0x85, 0x90, 0x91, 0x94, 0x95,
0xc0, 0xc1, 0xc4, 0xc5, 0xd0, 0xd1, 0xd4, 0xd5,
0x82, 0x83, 0x86, 0x87, 0x92, 0x93, 0x96, 0x97,
0xc2, 0xc3, 0xc6, 0xc7, 0xd2, 0xd3, 0xd6, 0xd7,
0x88, 0x89, 0x8c, 0x8d, 0x98, 0x99, 0x9c, 0x9d,
0xc8, 0xc9, 0xcc, 0xcd, 0xd8, 0xd9, 0xdc, 0xdd,
0x8a, 0x8b, 0x8e, 0x8f, 0x9a, 0x9b, 0x9e, 0x9f,
0xca, 0xcb, 0xce, 0xcf, 0xda, 0xdb, 0xde, 0xdf,
0xa0, 0xa1, 0xa4, 0xa5, 0xb0, 0xb1, 0xb4, 0xb5,
0xe0, 0xe1, 0xe4, 0xe5, 0xf0, 0xf1, 0xf4, 0xf5,
0xa2, 0xa3, 0xa6, 0xa7, 0xb2, 0xb3, 0xb6, 0xb7,
0xe2, 0xe3, 0xe6, 0xe7, 0xf2, 0xf3, 0xf6, 0xf7,
0xa8, 0xa9, 0xac, 0xad, 0xb8, 0xb9, 0xbc, 0xbd,
0xe8, 0xe9, 0xec, 0xed, 0xf8, 0xf9, 0xfc, 0xfd,
0xaa, 0xab, 0xae, 0xaf, 0xba, 0xbb, 0xbe, 0xbf,
0xea, 0xeb, 0xee, 0xef, 0xfa, 0xfb, 0xfe, 0xff,
};
int
xcfbmatch(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct tc_attach_args *ta = aux;
if (strncmp("PMAG-DV ", ta->ta_modname, TC_ROM_LLEN) != 0)
return (0);
return (1);
}
void
xcfb_getdevconfig(dense_addr, dc)
tc_addr_t dense_addr;
struct fb_devconfig *dc;
{
struct raster *rap;
struct rcons *rcp;
int i;
dc->dc_vaddr = dense_addr;
dc->dc_paddr = MIPS_KSEG1_TO_PHYS(dc->dc_vaddr + XCFB_FB_OFFSET);
dc->dc_wid = 1024;
dc->dc_ht = 768;
dc->dc_depth = 8;
dc->dc_rowbytes = 1024;
dc->dc_videobase = dc->dc_vaddr + XCFB_FB_OFFSET;
dc->dc_blanked = 0;
/* initialize colormap and cursor resource */
xcfbinit(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) = 0;
/* initialize the raster */
rap = &dc->dc_raster;
rap->width = dc->dc_wid;
rap->height = dc->dc_ht;
rap->depth = dc->dc_depth;
rap->linelongs = dc->dc_rowbytes / sizeof(u_int32_t);
rap->pixels = (u_int32_t *)dc->dc_videobase;
/* initialize the raster console blitter */
rcp = &dc->dc_rcons;
rcp->rc_sp = rap;
rcp->rc_crow = rcp->rc_ccol = -1;
rcp->rc_crowp = &rcp->rc_crow;
rcp->rc_ccolp = &rcp->rc_ccol;
rcons_init(rcp, 34, 80);
xcfb_stdscreen.nrows = dc->dc_rcons.rc_maxrow;
xcfb_stdscreen.ncols = dc->dc_rcons.rc_maxcol;
}
void
xcfbattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct xcfb_softc *sc = (struct xcfb_softc *)self;
struct tc_attach_args *ta = aux;
struct wsemuldisplaydev_attach_args waa;
struct hwcmap256 *cm;
int console;
console = (ta->ta_addr == xcfb_consaddr);
if (console) {
sc->sc_dc = &xcfb_console_dc;
sc->nscreens = 1;
}
else {
sc->sc_dc = (struct fb_devconfig *)
malloc(sizeof(struct fb_devconfig), M_DEVBUF, M_WAITOK);
xcfb_getdevconfig(ta->ta_addr, sc->sc_dc);
}
printf(": %d x %d, %dbpp\n", sc->sc_dc->dc_wid, sc->sc_dc->dc_ht,
sc->sc_dc->dc_depth);
cm = &sc->sc_cmap;
memset(cm, 255, sizeof(struct hwcmap256)); /* XXX */
cm->r[0] = cm->g[0] = cm->b[0] = 0; /* XXX */
sc->sc_csr = IMS332_BPP_8 | IMS332_CSR_A_VTG_ENABLE;
tc_intr_establish(parent, ta->ta_cookie, TC_IPL_TTY, xcfbintr, sc);
waa.console = console;
waa.scrdata = &xcfb_screenlist;
waa.accessops = &xcfb_accessops;
waa.accesscookie = sc;
config_found(self, &waa, wsemuldisplaydevprint);
}
int
xcfbioctl(v, cmd, data, flag, p)
void *v;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
struct xcfb_softc *sc = v;
struct fb_devconfig *dc = sc->sc_dc;
int turnoff, error;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_XCFB;
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:
error = set_cmap(sc, (struct wsdisplay_cmap *)data);
if (error == 0)
ims332_loadcmap(&sc->sc_cmap);
return (error);
case WSDISPLAYIO_SVIDEO:
turnoff = *(int *)data == WSDISPLAYIO_VIDEO_OFF;
if ((dc->dc_blanked == 0) ^ turnoff) {
dc->dc_blanked = turnoff;
xcfb_screenblank(sc);
}
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);
ims332_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;
}
int
xcfbmmap(v, offset, prot)
void *v;
off_t offset;
int prot;
{
struct xcfb_softc *sc = v;
if (offset >= XCFB_FB_SIZE || offset < 0)
return -1;
return mips_btop(sc->sc_dc->dc_paddr + offset);
}
int
xcfb_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
void *v;
const struct wsscreen_descr *type;
void **cookiep;
int *curxp, *curyp;
long *attrp;
{
struct xcfb_softc *sc = v;
long defattr;
if (sc->nscreens > 0)
return (ENOMEM);
*cookiep = &sc->sc_dc->dc_rcons; /* one and only for now */
*curxp = 0;
*curyp = 0;
rcons_alloc_attr(&sc->sc_dc->dc_rcons, 0, 0, 0, &defattr);
*attrp = defattr;
sc->nscreens++;
return (0);
}
void
xcfb_free_screen(v, cookie)
void *v;
void *cookie;
{
struct xcfb_softc *sc = v;
if (sc->sc_dc == &xcfb_console_dc)
panic("xcfb_free_screen: console");
sc->nscreens--;
}
void
xcfb_show_screen(v, cookie)
void *v;
void *cookie;
{
}
int
xcfb_cnattach(addr)
tc_addr_t addr;
{
struct fb_devconfig *dcp = &xcfb_console_dc;
long defattr;
xcfb_getdevconfig(addr, dcp);
rcons_alloc_attr(&dcp->dc_rcons, 0, 0, 0, &defattr);
wsdisplay_cnattach(&xcfb_stdscreen, &dcp->dc_rcons,
0, 0, defattr);
xcfb_consaddr = addr;
return (0);
}
int
xcfbintr(v)
void *v;
{
int intr;
intr = *(u_int32_t *)(ioasic_base + IOASIC_INTR);
intr &= ~XINE_INTR_VINT;
*(u_int32_t *)(ioasic_base + IOASIC_INTR) = intr;
return 1;
}
void
xcfbinit(dc)
struct fb_devconfig *dc;
{
u_int32_t csr;
int i;
csr = *(u_int32_t *)(ioasic_base + IOASIC_CSR);
csr &= ~XINE_CSR_VDAC_ENABLE;
*(u_int32_t *)(ioasic_base + IOASIC_CSR) = csr;
DELAY(50);
csr |= XINE_CSR_VDAC_ENABLE;
*(u_int32_t *)(ioasic_base + IOASIC_CSR) = csr;
DELAY(50);
ims332_write_reg(IMS332_REG_BOOT, 0x2c);
ims332_write_reg(IMS332_REG_CSR_A,
IMS332_BPP_8|IMS332_CSR_A_DISABLE_CURSOR);
ims332_write_reg(IMS332_REG_HALF_SYNCH, 0x10);
ims332_write_reg(IMS332_REG_BACK_PORCH, 0x21);
ims332_write_reg(IMS332_REG_DISPLAY, 0x100);
ims332_write_reg(IMS332_REG_SHORT_DIS, 0x5d);
ims332_write_reg(IMS332_REG_BROAD_PULSE, 0x9f);
ims332_write_reg(IMS332_REG_LINE_TIME, 0x146);
ims332_write_reg(IMS332_REG_V_SYNC, 0x0c);
ims332_write_reg(IMS332_REG_V_PRE_EQUALIZE, 0x02);
ims332_write_reg(IMS332_REG_V_POST_EQUALIZE, 0x02);
ims332_write_reg(IMS332_REG_V_BLANK, 0x2a);
ims332_write_reg(IMS332_REG_V_DISPLAY, 0x600);
ims332_write_reg(IMS332_REG_LINE_START, 0x10);
ims332_write_reg(IMS332_REG_MEM_INIT, 0x0a);
ims332_write_reg(IMS332_REG_COLOR_MASK, 0xffffff);
ims332_write_reg(IMS332_REG_CSR_A,
IMS332_BPP_8|IMS332_CSR_A_VTG_ENABLE);
/* build sane colormap */
ims332_write_reg(IMS332_REG_LUT_BASE, 0);
for (i = 1; i < CMAP_SIZE; i++)
ims332_write_reg(IMS332_REG_LUT_BASE + i, 0xffffff);
/* clear out cursor image */
for (i = 0; i < 512; i++)
ims332_write_reg(IMS332_REG_CURSOR_RAM + i, 0);
/*
* 2 bit/pixel cursor. Assign MSB for cursor mask and LSB for
* cursor image. LUT_1 for mask color, while LUT_2 for
* image color. LUT_0 will be never used.
*/
ims332_write_reg(IMS332_REG_CURSOR_LUT_0, 0);
ims332_write_reg(IMS332_REG_CURSOR_LUT_1, 0xffffff);
ims332_write_reg(IMS332_REG_CURSOR_LUT_2, 0xffffff);
}
void
xcfb_screenblank(sc)
struct xcfb_softc *sc;
{
if (sc->sc_dc->dc_blanked)
sc->sc_csr |= IMS332_CSR_A_FORCE_BLANK;
else
sc->sc_csr &= ~IMS332_CSR_A_FORCE_BLANK;
ims332_write_reg(IMS332_REG_CSR_A, sc->sc_csr);
}
static int
get_cmap(sc, p)
struct xcfb_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 xcfb_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);
return (0);
}
static int
set_cursor(sc, p)
struct xcfb_softc *sc;
struct wsdisplay_cursor *p;
{
#define cc (&sc->sc_cursor)
int v, index, count;
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);
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);
ims332_load_curcmap(sc);
}
if (v & WSDISPLAY_CURSOR_DOSHAPE) {
if (p->size.x > CURSOR_MAX_SIZE || p->size.y > CURSOR_MAX_SIZE)
return (EINVAL);
count = ((p->size.x < 33) ? 4 : 8) * p->size.y;
if (!uvm_useracc(p->image, count, B_READ) ||
!uvm_useracc(p->mask, count, B_READ))
return (EFAULT);
cc->cc_size = p->size;
memset(cc->cc_image, 0, sizeof cc->cc_image);
copyin(p->image, cc->cc_image, count);
copyin(p->mask, cc->cc_image+CURSOR_MAX_SIZE, count);
ims332_load_curshape(sc);
}
if (v & WSDISPLAY_CURSOR_DOCUR) {
cc->cc_hot = p->hot;
if (p->enable)
sc->sc_csr &= ~IMS332_CSR_A_DISABLE_CURSOR;
else
sc->sc_csr |= IMS332_CSR_A_DISABLE_CURSOR;
ims332_write_reg(IMS332_REG_CSR_A, sc->sc_csr);
}
if (v & WSDISPLAY_CURSOR_DOPOS) {
set_curpos(sc, &p->pos);
ims332_set_curpos(sc);
}
return (0);
#undef cc
}
static int
get_cursor(sc, p)
struct xcfb_softc *sc;
struct wsdisplay_cursor *p;
{
return (ENOTTY); /* XXX */
}
static void
set_curpos(sc, curpos)
struct xcfb_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;
}
void
ims332_loadcmap(cm)
struct hwcmap256 *cm;
{
int i;
u_int32_t rgb;
for (i = 0; i < CMAP_SIZE; i++) {
rgb = cm->b[i] << 16 | cm->g[i] << 8 | cm->r[i];
ims332_write_reg(IMS332_REG_LUT_BASE + i, rgb);
}
}
void
ims332_set_curpos(sc)
struct xcfb_softc *sc;
{
struct wsdisplay_curpos *curpos = &sc->sc_cursor.cc_pos;
u_int32_t pos;
int s;
s = spltty();
pos = (curpos->x & 0xfff) << 12 | (curpos->y & 0xfff);
ims332_write_reg(IMS332_REG_CURSOR_LOC, pos);
splx(s);
}
void
ims332_load_curcmap(sc)
struct xcfb_softc *sc;
{
u_int8_t *cp = sc->sc_cursor.cc_color;
u_int32_t rgb;
/* cursor background */
rgb = cp[5] << 16 | cp[3] << 8 | cp[1];
ims332_write_reg(IMS332_REG_CURSOR_LUT_1, rgb);
/* cursor foreground */
rgb = cp[4] << 16 | cp[2] << 8 | cp[0];
ims332_write_reg(IMS332_REG_CURSOR_LUT_2, rgb);
}
void
ims332_load_curshape(sc)
struct xcfb_softc *sc;
{
unsigned i, img, msk, bits;
u_int8_t u, *ip, *mp;
ip = (u_int8_t *)sc->sc_cursor.cc_image;
mp = (u_int8_t *)(sc->sc_cursor.cc_image+CURSOR_MAX_SIZE);
i = 0;
/* 64 pixel scan line is consisted with 8 halfward cursor ram */
while (i < sc->sc_cursor.cc_size.y * 8) {
/* pad right half 32 pixel when smaller than 33 */
if ((i & 0x4) && sc->sc_cursor.cc_size.x < 33)
bits = 0;
else {
img = *ip++;
msk = *mp++;
img &= msk; /* cookie off image */
u = (msk & 0x0f) << 4 | (img & 0x0f);
bits = shuffle[u];
u = (msk & 0xf0) | (img & 0xf0) >> 4;
bits = (shuffle[u] << 8) | bits;
}
ims332_write_reg(IMS332_REG_CURSOR_RAM + i, bits);
i += 1;
}
/* pad unoccupied scan lines */
while (i < CURSOR_MAX_SIZE * 8) {
ims332_write_reg(IMS332_REG_CURSOR_RAM + i, 0);
i += 1;
}
}
u_int32_t
ims332_read_reg(regno)
int regno;
{
caddr_t high8 = (caddr_t)(ioasic_base + IMS332_HIGH);
caddr_t low16 = (caddr_t)(ioasic_base + IMS332_RLOW) + (regno << 4);
u_int v0, v1;
v1 = *(volatile u_int16_t *)high8;
v0 = *(volatile u_int16_t *)low16;
return (v1 & 0xff00) << 8 | v0;
}
void
ims332_write_reg(regno, val)
int regno;
u_int32_t val;
{
caddr_t high8 = (caddr_t)(ioasic_base + IMS332_HIGH);
caddr_t low16 = (caddr_t)(ioasic_base + IMS332_WLOW) + (regno << 4);
*(volatile u_int16_t *)high8 = (val & 0xff0000) >> 8;
*(volatile u_int16_t *)low16 = val;
}
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