/* $NetBSD: xcfb.c,v 1.60 2021/12/06 16:00:07 abs Exp $ */
/*-
* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Tohru Nishimura.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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>
__KERNEL_RCSID(0, "$NetBSD: xcfb.c,v 1.60 2021/12/06 16:00:07 abs 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 <sys/bus.h>
#include <sys/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/tc/ioasicreg.h>
#include <dev/ic/ims332reg.h>
#include <pmax/pmax/maxine.h>
struct hwcmap256 {
#define CMAP_SIZE 256 /* 256 R/G/B entries */
uint8_t r[CMAP_SIZE];
uint8_t g[CMAP_SIZE];
uint8_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
uint8_t cc_color[6];
uint64_t cc_image[CURSOR_MAX_SIZE];
uint64_t cc_mask[CURSOR_MAX_SIZE];
};
#define XCFB_FB_BASE (XINE_PHYS_CFB_START + 0x2000000)
#define XCFB_FB_SIZE 0x100000
#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 {
vaddr_t sc_vaddr;
size_t sc_size;
struct rasops_info *sc_ri;
struct hwcmap256 sc_cmap; /* software copy of colormap */
struct hwcursor64 sc_cursor; /* software copy of cursor */
int sc_blanked;
/* XXX MAXINE can take PMAG-DV vertical retrace interrupt XXX */
int nscreens;
/* cursor coordinate is located at upper-left corner */
int sc_csr; /* software copy of IMS332 CSR A */
};
static int xcfbmatch(device_t, cfdata_t, void *);
static void xcfbattach(device_t, device_t, void *);
CFATTACH_DECL_NEW(xcfb, sizeof(struct xcfb_softc),
xcfbmatch, xcfbattach, NULL, NULL);
static tc_addr_t xcfb_consaddr;
static struct rasops_info xcfb_console_ri;
static void xcfb_common_init(struct rasops_info *);
static void xcfbhwinit(void *);
int xcfb_cnattach(void);
struct wsscreen_descr xcfb_stdscreen = {
"std", 0, 0,
0, /* textops */
0, 0,
WSSCREEN_REVERSE
};
static const struct wsscreen_descr *_xcfb_scrlist[] = {
&xcfb_stdscreen,
};
static const struct wsscreen_list xcfb_screenlist = {
sizeof(_xcfb_scrlist) / sizeof(struct wsscreen_descr *), _xcfb_scrlist
};
static int xcfbioctl(void *, void *, u_long, void *, int, struct lwp *);
static paddr_t xcfbmmap(void *, void *, off_t, int);
static int xcfb_alloc_screen(void *, const struct wsscreen_descr *,
void **, int *, int *, long *);
static void xcfb_free_screen(void *, void *);
static int xcfb_show_screen(void *, void *, int,
void (*) (void *, int, int), void *);
static const struct wsdisplay_accessops xcfb_accessops = {
xcfbioctl,
xcfbmmap,
xcfb_alloc_screen,
xcfb_free_screen,
xcfb_show_screen,
0 /* load_font */
};
static int xcfbintr(void *);
static void xcfb_screenblank(struct xcfb_softc *);
static void xcfb_cmap_init(struct xcfb_softc *);
static int set_cmap(struct xcfb_softc *, struct wsdisplay_cmap *);
static int get_cmap(struct xcfb_softc *, struct wsdisplay_cmap *);
static int set_cursor(struct xcfb_softc *, struct wsdisplay_cursor *);
static int get_cursor(struct xcfb_softc *, struct wsdisplay_cursor *);
static void set_curpos(struct xcfb_softc *, struct wsdisplay_curpos *);
static void ims332_loadcmap(struct hwcmap256 *);
static void ims332_set_curpos(struct xcfb_softc *);
static void ims332_load_curcmap(struct xcfb_softc *);
static void ims332_load_curshape(struct xcfb_softc *);
static void ims332_write_reg(int, uint32_t);
#if 0
static uint32_t ims332_read_reg(int);
#endif
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
*/
static const uint8_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,
};
static int
xcfbmatch(device_t parent, cfdata_t match, void *aux)
{
struct tc_attach_args *ta = aux;
if (strncmp("PMAG-DV ", ta->ta_modname, TC_ROM_LLEN) != 0)
return (0);
return (1);
}
static void
xcfbattach(device_t parent, device_t self, void *aux)
{
struct xcfb_softc *sc = device_private(self);
struct tc_attach_args *ta = aux;
struct rasops_info *ri;
struct wsemuldisplaydev_attach_args waa;
int console;
console = (ta->ta_addr == xcfb_consaddr);
if (console) {
sc->sc_ri = ri = &xcfb_console_ri;
ri->ri_flg &= ~RI_NO_AUTO;
sc->nscreens = 1;
}
else {
ri = malloc(sizeof(struct rasops_info), M_DEVBUF, M_WAITOK | M_ZERO);
ri->ri_hw = (void *)ioasic_base;
xcfb_common_init(ri);
sc->sc_ri = ri;
}
printf(": %dx%d, %dbpp\n", ri->ri_width, ri->ri_height, ri->ri_depth);
xcfb_cmap_init(sc);
sc->sc_vaddr = ta->ta_addr;
sc->sc_blanked = 0;
sc->sc_csr = IMS332_BPP_8 | IMS332_CSR_A_VTG_ENABLE;
tc_intr_establish(parent, ta->ta_cookie, IPL_TTY, xcfbintr, sc);
waa.console = console;
waa.scrdata = &xcfb_screenlist;
waa.accessops = &xcfb_accessops;
waa.accesscookie = sc;
config_found(self, &waa, wsemuldisplaydevprint, CFARGS_NONE);
}
static void
xcfb_cmap_init(struct xcfb_softc *sc)
{
struct hwcmap256 *cm;
const uint8_t *p;
int index;
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];
}
}
static void
xcfb_common_init(struct rasops_info *ri)
{
int cookie;
/* initialize colormap and cursor hardware */
xcfbhwinit((void *)ri->ri_hw);
ri->ri_flg = RI_CENTER;
if (ri == &xcfb_console_ri)
ri->ri_flg |= RI_NO_AUTO;
ri->ri_depth = 8;
ri->ri_width = 1024;
ri->ri_height = 768;
ri->ri_stride = 1024;
ri->ri_bits = (void *)MIPS_PHYS_TO_KSEG1(XCFB_FB_BASE);
/* clear the screen */
memset(ri->ri_bits, 0, ri->ri_stride * ri->ri_height);
wsfont_init();
/* prefer 12 pixel wide font */
cookie = wsfont_find(NULL, 12, 0, 0, WSDISPLAY_FONTORDER_L2R,
WSDISPLAY_FONTORDER_L2R, WSFONT_FIND_BITMAP);
if (cookie <= 0)
cookie = wsfont_find(NULL, 0, 0, 0, WSDISPLAY_FONTORDER_L2R,
WSDISPLAY_FONTORDER_L2R, WSFONT_FIND_BITMAP);
if (cookie <= 0) {
printf("xcfb: font table is empty\n");
return;
}
if (wsfont_lock(cookie, &ri->ri_font)) {
printf("xcfb: couldn't lock font\n");
return;
}
ri->ri_wsfcookie = cookie;
rasops_init(ri, 34, 80);
/* XXX shouldn't be global */
xcfb_stdscreen.nrows = ri->ri_rows;
xcfb_stdscreen.ncols = ri->ri_cols;
xcfb_stdscreen.textops = &ri->ri_ops;
xcfb_stdscreen.capabilities = ri->ri_caps;
}
int
xcfb_cnattach(void)
{
struct rasops_info *ri;
long defattr;
ri = &xcfb_console_ri;
ri->ri_hw = (void *)ioasic_base;
xcfb_common_init(ri);
(*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr);
wsdisplay_cnattach(&xcfb_stdscreen, ri, 0, 0, defattr);
xcfb_consaddr = MIPS_PHYS_TO_KSEG1(XINE_PHYS_CFB_START);
return (0);
}
static void
xcfbhwinit(void *base)
{
volatile uint32_t *csr;
uint32_t i;
const uint8_t *p;
csr = (volatile uint32_t *)((char *)base + IOASIC_CSR);
i = *csr;
i &= ~XINE_CSR_VDAC_ENABLE;
*csr = i;
DELAY(50);
i |= XINE_CSR_VDAC_ENABLE;
*csr = i;
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 */
p = rasops_cmap;
for (i = 0; i < CMAP_SIZE; i++, p += 3) {
uint32_t bgr;
bgr = p[2] << 16 | p[1] << 8 | p[0];
ims332_write_reg(IMS332_REG_LUT_BASE + i, bgr);
}
/* 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);
}
static int
xcfbioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l)
{
struct xcfb_softc *sc = v;
struct rasops_info *ri = sc->sc_ri;
int turnoff, error;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_XCFB;
return (0);
case WSDISPLAYIO_GET_FBINFO: {
struct wsdisplayio_fbinfo *fbi = data;
return wsdisplayio_get_fbinfo(sc->sc_ri, fbi);
}
case WSDISPLAYIO_GINFO:
#define wsd_fbip ((struct wsdisplay_fbinfo *)data)
wsd_fbip->height = ri->ri_height;
wsd_fbip->width = ri->ri_width;
wsd_fbip->depth = ri->ri_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 (sc->sc_blanked != turnoff) {
sc->sc_blanked = turnoff;
xcfb_screenblank(sc);
}
return (0);
case WSDISPLAYIO_GVIDEO:
*(u_int *)data = sc->sc_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);
case WSDISPLAYIO_SMODE:
if (*(int *)data == WSDISPLAYIO_MODE_EMUL) {
sc->sc_csr |= IMS332_CSR_A_DISABLE_CURSOR;
ims332_write_reg(IMS332_REG_CSR_A, sc->sc_csr);
xcfb_cmap_init(sc);
ims332_loadcmap(&sc->sc_cmap);
sc->sc_blanked = 0;
xcfb_screenblank(sc);
}
return (0);
}
return (EPASSTHROUGH);
}
static paddr_t
xcfbmmap(void *v, void *vs, off_t offset, int prot)
{
if (offset >= XCFB_FB_SIZE || offset < 0)
return (-1);
return mips_btop(MIPS_KSEG1_TO_PHYS(XCFB_FB_BASE + offset));
}
static int
xcfb_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep,
int *curxp, int *curyp, long *attrp)
{
struct xcfb_softc *sc = v;
struct rasops_info *ri = sc->sc_ri;
long defattr;
if (sc->nscreens > 0)
return (ENOMEM);
*cookiep = ri; /* one and only for now */
*curxp = 0;
*curyp = 0;
(*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr);
*attrp = defattr;
sc->nscreens++;
return (0);
}
static void
xcfb_free_screen(void *v, void *cookie)
{
struct xcfb_softc *sc = v;
if (sc->sc_ri == &xcfb_console_ri)
panic("xcfb_free_screen: console");
sc->nscreens--;
}
static int
xcfb_show_screen(void *v, void *cookie, int waitok,
void (*cb)(void *, int, int), void *cbarg)
{
return (0);
}
static int
xcfbintr(void *v)
{
struct xcfb_softc *sc = v;
uint32_t *intr, i;
intr = (uint32_t *)((char *)sc->sc_ri->ri_hw + IOASIC_INTR);
i = *intr;
i &= ~XINE_INTR_VINT;
*intr = i;
return (1);
}
static void
xcfb_screenblank(struct xcfb_softc *sc)
{
if (sc->sc_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(struct xcfb_softc *sc, struct wsdisplay_cmap *p)
{
u_int index = p->index, count = p->count;
int error;
if (index >= CMAP_SIZE || count > CMAP_SIZE - index)
return (EINVAL);
error = copyout(&sc->sc_cmap.r[index], p->red, count);
if (error)
return error;
error = copyout(&sc->sc_cmap.g[index], p->green, count);
if (error)
return error;
error = copyout(&sc->sc_cmap.b[index], p->blue, count);
return error;
}
static int
set_cmap(struct xcfb_softc *sc, struct wsdisplay_cmap *p)
{
struct hwcmap256 cmap;
u_int index = p->index, count = p->count;
int error;
if (index >= CMAP_SIZE || count > CMAP_SIZE - index)
return (EINVAL);
error = copyin(p->red, &cmap.r[index], count);
if (error)
return error;
error = copyin(p->green, &cmap.g[index], count);
if (error)
return error;
error = copyin(p->blue, &cmap.b[index], count);
if (error)
return error;
memcpy(&sc->sc_cmap.r[index], &cmap.r[index], count);
memcpy(&sc->sc_cmap.g[index], &cmap.g[index], count);
memcpy(&sc->sc_cmap.b[index], &cmap.b[index], count);
return (0);
}
static int
set_cursor(struct xcfb_softc *sc, struct wsdisplay_cursor *p)
{
#define cc (&sc->sc_cursor)
u_int v, index = 0, count = 0, icount = 0;
uint8_t r[2], g[2], b[2], image[512], mask[512];
int error;
v = p->which;
if (v & WSDISPLAY_CURSOR_DOCMAP) {
index = p->cmap.index;
count = p->cmap.count;
if (index >= 2 || count > 2 - index)
return (EINVAL);
error = copyin(p->cmap.red, &r[index], count);
if (error)
return error;
error = copyin(p->cmap.green, &g[index], count);
if (error)
return error;
error = copyin(p->cmap.blue, &b[index], count);
if (error)
return error;
}
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;
error = copyin(p->image, image, icount);
if (error)
return error;
error = copyin(p->mask, mask, icount);
if (error)
return error;
}
if (v & WSDISPLAY_CURSOR_DOCMAP) {
memcpy(&cc->cc_color[index], &r[index], count);
memcpy(&cc->cc_color[index + 2], &g[index], count);
memcpy(&cc->cc_color[index + 4], &b[index], count);
ims332_load_curcmap(sc);
}
if (v & WSDISPLAY_CURSOR_DOSHAPE) {
cc->cc_size = p->size;
memset(cc->cc_image, 0, sizeof cc->cc_image);
memcpy(cc->cc_image, image, icount);
memset(cc->cc_mask, 0, sizeof cc->cc_mask);
memcpy(cc->cc_mask, mask, icount);
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(struct xcfb_softc *sc, struct wsdisplay_cursor *p)
{
return (EPASSTHROUGH); /* XXX */
}
static void
set_curpos(struct xcfb_softc *sc, struct wsdisplay_curpos *curpos)
{
struct rasops_info *ri = sc->sc_ri;
int x = curpos->x, y = curpos->y;
if (y < 0)
y = 0;
else if (y > ri->ri_height)
y = ri->ri_height;
if (x < 0)
x = 0;
else if (x > ri->ri_width)
x = ri->ri_width;
sc->sc_cursor.cc_pos.x = x;
sc->sc_cursor.cc_pos.y = y;
}
static void
ims332_loadcmap(struct hwcmap256 *cm)
{
int i;
uint32_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);
}
}
static void
ims332_set_curpos(struct xcfb_softc *sc)
{
struct wsdisplay_curpos *curpos = &sc->sc_cursor.cc_pos;
uint32_t pos;
int s;
s = spltty();
pos = (curpos->x & 0xfff) << 12 | (curpos->y & 0xfff);
ims332_write_reg(IMS332_REG_CURSOR_LOC, pos);
splx(s);
}
static void
ims332_load_curcmap(struct xcfb_softc *sc)
{
uint8_t *cp = sc->sc_cursor.cc_color;
uint32_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);
}
static void
ims332_load_curshape(struct xcfb_softc *sc)
{
u_int i, img, msk, bits;
uint8_t u, *ip, *mp;
ip = (uint8_t *)sc->sc_cursor.cc_image;
mp = (uint8_t *)sc->sc_cursor.cc_mask;
i = 0;
/* 64 pixel scan line is consisted with 8 halfword 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;
}
}
static void
ims332_write_reg(int regno, uint32_t val)
{
void *high8 = (void *)(ioasic_base + IMS332_HIGH);
void *low16 = (void *)(ioasic_base + IMS332_WLOW + (regno << 4));
*(volatile uint16_t *)high8 = (val & 0xff0000) >> 8;
*(volatile uint16_t *)low16 = val;
}
#if 0
static uint32_t
ims332_read_reg(int regno)
{
void *high8 = (void *)(ioasic_base + IMS332_HIGH);
void *low16 = (void *)(ioasic_base + IMS332_RLOW) + (regno << 4);
u_int v0, v1;
v1 = *(volatile uint16_t *)high8;
v0 = *(volatile uint16_t *)low16;
return (v1 & 0xff00) << 8 | v0;
}
#endif
