/* $NetBSD: chipsfb.c,v 1.15 2008/05/08 01:43:17 macallan Exp $ */ /* * Copyright (c) 2006 Michael Lorenz * 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. * * 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. */ /* * A console driver for Chips & Technologies 65550 graphics controllers * tested on macppc only so far */ #include __KERNEL_RCSID(0, "$NetBSD: chipsfb.c,v 1.15 2008/05/08 01:43:17 macallan Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "opt_wsemul.h" #include "opt_chipsfb.h" struct chipsfb_softc { struct device sc_dev; pci_chipset_tag_t sc_pc; pcitag_t sc_pcitag; bus_space_tag_t sc_memt; bus_space_tag_t sc_iot; bus_space_handle_t sc_memh; bus_space_tag_t sc_fbt; bus_space_tag_t sc_ioregt; bus_space_handle_t sc_fbh; bus_space_handle_t sc_ioregh; bus_addr_t sc_fb, sc_ioreg; bus_size_t sc_fbsize, sc_ioregsize; void *sc_ih; size_t memsize; int bits_per_pixel; int width, height, linebytes; int sc_mode; uint32_t sc_bg; u_char sc_cmap_red[256]; u_char sc_cmap_green[256]; u_char sc_cmap_blue[256]; int sc_dacw; /* * I2C stuff * DDC2 clock is on GPIO1, data on GPIO0 */ struct i2c_controller sc_i2c; uint8_t sc_edid[1024]; int sc_edidbytes; /* number of bytes read from the monitor */ struct vcons_data vd; }; static struct vcons_screen chipsfb_console_screen; extern const u_char rasops_cmap[768]; static int chipsfb_match(struct device *, struct cfdata *, void *); static void chipsfb_attach(struct device *, struct device *, void *); CFATTACH_DECL(chipsfb, sizeof(struct chipsfb_softc), chipsfb_match, chipsfb_attach, NULL, NULL); static void chipsfb_init(struct chipsfb_softc *); static void chipsfb_cursor(void *, int, int, int); static void chipsfb_copycols(void *, int, int, int, int); static void chipsfb_erasecols(void *, int, int, int, long); static void chipsfb_copyrows(void *, int, int, int); static void chipsfb_eraserows(void *, int, int, long); #if 0 static int chipsfb_allocattr(void *, int, int, int, long *); static void chipsfb_scroll(void *, void *, int); static int chipsfb_load_font(void *, void *, struct wsdisplay_font *); #endif static int chipsfb_putcmap(struct chipsfb_softc *, struct wsdisplay_cmap *); static int chipsfb_getcmap(struct chipsfb_softc *, struct wsdisplay_cmap *); static int chipsfb_putpalreg(struct chipsfb_softc *, uint8_t, uint8_t, uint8_t, uint8_t); static void chipsfb_bitblt(struct chipsfb_softc *, int, int, int, int, int, int, uint8_t); static void chipsfb_rectfill(struct chipsfb_softc *, int, int, int, int, int); static void chipsfb_putchar(void *, int, int, u_int, long); static void chipsfb_setup_mono(struct chipsfb_softc *, int, int, int, int, uint32_t, uint32_t); static void chipsfb_feed(struct chipsfb_softc *, int, uint8_t *); #if 0 static void chipsfb_showpal(struct chipsfb_softc *); #endif static void chipsfb_restore_palette(struct chipsfb_softc *); static void chipsfb_wait_idle(struct chipsfb_softc *); static uint32_t chipsfb_probe_vram(struct chipsfb_softc *); struct wsscreen_descr chipsfb_defaultscreen = { "default", 0, 0, NULL, 8, 16, WSSCREEN_WSCOLORS | WSSCREEN_HILIT, }; const struct wsscreen_descr *_chipsfb_scrlist[] = { &chipsfb_defaultscreen, /* XXX other formats, graphics screen? */ }; struct wsscreen_list chipsfb_screenlist = { sizeof(_chipsfb_scrlist) / sizeof(struct wsscreen_descr *), _chipsfb_scrlist }; static int chipsfb_ioctl(void *, void *, u_long, void *, int, struct lwp *); static paddr_t chipsfb_mmap(void *, void *, off_t, int); static void chipsfb_clearscreen(struct chipsfb_softc *); static void chipsfb_init_screen(void *, struct vcons_screen *, int, long *); struct wsdisplay_accessops chipsfb_accessops = { chipsfb_ioctl, chipsfb_mmap, NULL, /* load_font */ NULL, /* polls */ NULL, /* scroll */ }; /* * Inline functions for getting access to register aperture. */ static inline void chipsfb_write32(struct chipsfb_softc *sc, uint32_t reg, uint32_t val) { bus_space_write_4(sc->sc_fbt, sc->sc_fbh, reg, val); } static inline uint32_t chipsfb_read32(struct chipsfb_softc *sc, uint32_t reg) { return bus_space_read_4(sc->sc_fbt, sc->sc_fbh, reg); } static inline void chipsfb_write_vga(struct chipsfb_softc *sc, uint32_t reg, uint8_t val) { bus_space_write_1(sc->sc_iot, sc->sc_ioregh, reg, val); } static inline uint8_t chipsfb_read_vga(struct chipsfb_softc *sc, uint32_t reg) { return bus_space_read_1(sc->sc_iot, sc->sc_ioregh, reg); } static inline uint8_t chipsfb_read_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index) { chipsfb_write_vga(sc, reg & 0xfffe, index); return chipsfb_read_vga(sc, reg | 0x0001); } static inline void chipsfb_write_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index, uint8_t val) { chipsfb_write_vga(sc, reg & 0xfffe, index); chipsfb_write_vga(sc, reg | 0x0001, val); } static void chipsfb_wait_idle(struct chipsfb_softc *sc) { #ifdef CHIPSFB_DEBUG chipsfb_write32(sc, CT_OFF_FB + (800 * 598) - 4, 0); #endif /* spin until the blitter is idle */ while ((chipsfb_read32(sc, CT_BLT_CONTROL) & BLT_IS_BUSY) != 0) { } #ifdef CHIPSFB_DEBUG chipsfb_write32(sc, CT_OFF_FB + (800 * 598) - 4, 0xffffffff); #endif } static int chipsfb_match(struct device *parent, struct cfdata *match, void *aux) { struct pci_attach_args *pa = (struct pci_attach_args *)aux; if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY || PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA) return 0; if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CHIPS) && (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CHIPS_65550)) return 100; if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CHIPS) && (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CHIPS_65554)) return 100; return 0; } static void chipsfb_attach(struct device *parent, struct device *self, void *aux) { struct chipsfb_softc *sc = (void *)self; struct pci_attach_args *pa = aux; char devinfo[256]; struct wsemuldisplaydev_attach_args aa; struct rasops_info *ri; prop_dictionary_t dict; pcireg_t screg; ulong defattr; bool console = false; int width, height, i, j; uint32_t bg, fg, ul; dict = device_properties(self); sc->sc_mode = WSDISPLAYIO_MODE_EMUL; sc->sc_pc = pa->pa_pc; sc->sc_pcitag = pa->pa_tag; sc->sc_dacw = -1; screg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); screg |= PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED; pci_conf_write(sc->sc_pc, sc->sc_pcitag,PCI_COMMAND_STATUS_REG,screg); pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); aprint_normal(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); #ifdef CHIPSFB_DEBUG printf(prop_dictionary_externalize(dict)); #endif sc->sc_memt = pa->pa_memt; sc->sc_iot = pa->pa_iot; /* the framebuffer */ if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM, BUS_SPACE_MAP_LINEAR, &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) { aprint_error_dev(&sc->sc_dev, "failed to map the frame buffer.\n"); } /* IO-mapped registers */ if (bus_space_map(sc->sc_iot, 0x0, 0x400, 0, &sc->sc_ioregh) != 0) { aprint_error_dev(&sc->sc_dev, "failed to map IO registers.\n"); } sc->memsize = chipsfb_probe_vram(sc); chipsfb_init(sc); /* we should read these from the chip instead of depending on OF */ width = height = -1; /* detect panel size */ width = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HSIZE_LSB); width |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HORZ_OVERFLOW_1) & 0x0f) << 8; width = (width + 1) * 8; height = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VSIZE_LSB); height |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VERT_OVERFLOW_1) & 0x0f) << 8; height++; aprint_verbose("Panel size: %d x %d\n", width, height); if (!prop_dictionary_get_uint32(dict, "width", &sc->width)) sc->width = width; if (!prop_dictionary_get_uint32(dict, "height", &sc->height)) sc->height = height; if (!prop_dictionary_get_uint32(dict, "depth", &sc->bits_per_pixel)) sc->bits_per_pixel = 8; if (!prop_dictionary_get_uint32(dict, "linebytes", &sc->linebytes)) sc->linebytes = (sc->width * sc->bits_per_pixel) >> 3; prop_dictionary_get_bool(dict, "is_console", &console); #ifdef notyet /* XXX this should at least be configurable via kernel config */ chipsfb_set_videomode(sc, &videomode_list[16]); #endif vcons_init(&sc->vd, sc, &chipsfb_defaultscreen, &chipsfb_accessops); sc->vd.init_screen = chipsfb_init_screen; ri = &chipsfb_console_screen.scr_ri; if (console) { vcons_init_screen(&sc->vd, &chipsfb_console_screen, 1, &defattr); chipsfb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; chipsfb_defaultscreen.textops = &ri->ri_ops; chipsfb_defaultscreen.capabilities = ri->ri_caps; chipsfb_defaultscreen.nrows = ri->ri_rows; chipsfb_defaultscreen.ncols = ri->ri_cols; wsdisplay_cnattach(&chipsfb_defaultscreen, ri, 0, 0, defattr); } else { /* * since we're not the console we can postpone the rest * until someone actually allocates a screen for us */ #ifdef notyet chipsfb_set_videomode(sc, &videomode_list[0]); #endif } rasops_unpack_attr(defattr, &fg, &bg, &ul); sc->sc_bg = ri->ri_devcmap[bg]; chipsfb_clearscreen(sc); aprint_normal_dev(&sc->sc_dev, "%d MB aperture, %d MB VRAM at 0x%08x\n", (u_int)(sc->sc_fbsize >> 20), sc->memsize >> 20, (u_int)sc->sc_fb); #ifdef CHIPSFB_DEBUG aprint_debug("fb: %08lx\n", (ulong)ri->ri_bits); #endif j = 0; for (i = 0; i < 256; i++) { chipsfb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], rasops_cmap[j + 2]); j += 3; } aa.console = console; aa.scrdata = &chipsfb_screenlist; aa.accessops = &chipsfb_accessops; aa.accesscookie = &sc->vd; config_found(self, &aa, wsemuldisplaydevprint); } static int chipsfb_putpalreg(struct chipsfb_softc *sc, uint8_t index, uint8_t r, uint8_t g, uint8_t b) { sc->sc_cmap_red[index] = r; sc->sc_cmap_green[index] = g; sc->sc_cmap_blue[index] = b; chipsfb_write_vga(sc, CT_DACMASK, 0xff); chipsfb_write_vga(sc, CT_WRITEINDEX, index); chipsfb_write_vga(sc, CT_DACDATA, r); chipsfb_write_vga(sc, CT_DACDATA, g); chipsfb_write_vga(sc, CT_DACDATA, b); return 0; } static int chipsfb_putcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) { u_char *r, *g, *b; u_int index = cm->index; u_int count = cm->count; int i, error; u_char rbuf[256], gbuf[256], bbuf[256]; #ifdef CHIPSFB_DEBUG aprint_debug("putcmap: %d %d\n",index, count); #endif if (cm->index >= 256 || cm->count > 256 || (cm->index + cm->count) > 256) return EINVAL; error = copyin(cm->red, &rbuf[index], count); if (error) return error; error = copyin(cm->green, &gbuf[index], count); if (error) return error; error = copyin(cm->blue, &bbuf[index], count); if (error) return error; memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); r = &sc->sc_cmap_red[index]; g = &sc->sc_cmap_green[index]; b = &sc->sc_cmap_blue[index]; for (i = 0; i < count; i++) { chipsfb_putpalreg(sc, index, *r, *g, *b); index++; r++, g++, b++; } return 0; } static int chipsfb_getcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) { u_int index = cm->index; u_int count = cm->count; int error; if (index >= 255 || count > 256 || index + count > 256) return EINVAL; error = copyout(&sc->sc_cmap_red[index], cm->red, count); if (error) return error; error = copyout(&sc->sc_cmap_green[index], cm->green, count); if (error) return error; error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); if (error) return error; return 0; } static void chipsfb_clearscreen(struct chipsfb_softc *sc) { chipsfb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg); } /* * wsdisplay_emulops */ static void chipsfb_cursor(void *cookie, int on, int row, int col) { struct rasops_info *ri = cookie; struct vcons_screen *scr = ri->ri_hw; struct chipsfb_softc *sc = scr->scr_cookie; int x, y, wi, he; wi = ri->ri_font->fontwidth; he = ri->ri_font->fontheight; if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { x = ri->ri_ccol * wi + ri->ri_xorigin; y = ri->ri_crow * he + ri->ri_yorigin; if (ri->ri_flg & RI_CURSOR) { chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); ri->ri_flg &= ~RI_CURSOR; } ri->ri_crow = row; ri->ri_ccol = col; if (on) { x = ri->ri_ccol * wi + ri->ri_xorigin; y = ri->ri_crow * he + ri->ri_yorigin; chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); ri->ri_flg |= RI_CURSOR; } } else { ri->ri_flg &= ~RI_CURSOR; ri->ri_crow = row; ri->ri_ccol = col; } } #if 0 int chipsfb_mapchar(void *cookie, int uni, u_int *index) { return 0; } #endif static void chipsfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) { struct rasops_info *ri = cookie; struct vcons_screen *scr = ri->ri_hw; struct chipsfb_softc *sc = scr->scr_cookie; int32_t xs, xd, y, width, height; if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; y = ri->ri_yorigin + ri->ri_font->fontheight * row; width = ri->ri_font->fontwidth * ncols; height = ri->ri_font->fontheight; chipsfb_bitblt(sc, xs, y, xd, y, width, height, ROP_COPY); } } static void chipsfb_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr) { struct rasops_info *ri = cookie; struct vcons_screen *scr = ri->ri_hw; struct chipsfb_softc *sc = scr->scr_cookie; int32_t x, y, width, height, fg, bg, ul; if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; y = ri->ri_yorigin + ri->ri_font->fontheight * row; width = ri->ri_font->fontwidth * ncols; height = ri->ri_font->fontheight; rasops_unpack_attr(fillattr, &fg, &bg, &ul); chipsfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); } } static void chipsfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) { struct rasops_info *ri = cookie; struct vcons_screen *scr = ri->ri_hw; struct chipsfb_softc *sc = scr->scr_cookie; int32_t x, ys, yd, width, height; if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { x = ri->ri_xorigin; ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; width = ri->ri_emuwidth; height = ri->ri_font->fontheight * nrows; chipsfb_bitblt(sc, x, ys, x, yd, width, height, ROP_COPY); } } static void chipsfb_eraserows(void *cookie, int row, int nrows, long fillattr) { struct rasops_info *ri = cookie; struct vcons_screen *scr = ri->ri_hw; struct chipsfb_softc *sc = scr->scr_cookie; int32_t x, y, width, height, fg, bg, ul; if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { rasops_unpack_attr(fillattr, &fg, &bg, &ul); if ((row == 0) && (nrows == ri->ri_rows)) { /* clear the whole screen */ chipsfb_rectfill(sc, 0, 0, ri->ri_width, ri->ri_height, ri->ri_devcmap[bg]); } else { x = ri->ri_xorigin; y = ri->ri_yorigin + ri->ri_font->fontheight * row; width = ri->ri_emuwidth; height = ri->ri_font->fontheight * nrows; chipsfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); } } } static void chipsfb_bitblt(struct chipsfb_softc *sc, int xs, int ys, int xd, int yd, int width, int height, uint8_t rop) { uint32_t src, dst, cmd = rop, stride, size; cmd |= BLT_PAT_IS_SOLID; /* we assume 8 bit for now */ src = xs + ys * sc->linebytes; dst = xd + yd * sc->linebytes; if (xs < xd) { /* right-to-left operation */ cmd |= BLT_START_RIGHT; src += width - 1; dst += width - 1; } if (ys < yd) { /* bottom-to-top operation */ cmd |= BLT_START_BOTTOM; src += (height - 1) * sc->linebytes; dst += (height - 1) * sc->linebytes; } stride = (sc->linebytes << 16) | sc->linebytes; size = (height << 16) | width; chipsfb_wait_idle(sc); chipsfb_write32(sc, CT_BLT_STRIDE, stride); chipsfb_write32(sc, CT_BLT_SRCADDR, src); chipsfb_write32(sc, CT_BLT_DSTADDR, dst); chipsfb_write32(sc, CT_BLT_CONTROL, cmd); chipsfb_write32(sc, CT_BLT_SIZE, size); #ifdef CHIPSFB_WAIT chipsfb_wait_idle(sc); #endif } static void chipsfb_rectfill(struct chipsfb_softc *sc, int x, int y, int width, int height, int colour) { uint32_t dst, cmd, stride, size; cmd = BLT_PAT_IS_SOLID | BLT_PAT_IS_MONO | ROP_PAT; /* we assume 8 bit for now */ dst = x + y * sc->linebytes; stride = (sc->linebytes << 16) | sc->linebytes; size = (height << 16) | width; chipsfb_wait_idle(sc); chipsfb_write32(sc, CT_BLT_STRIDE, stride); chipsfb_write32(sc, CT_BLT_SRCADDR, dst); chipsfb_write32(sc, CT_BLT_DSTADDR, dst); chipsfb_write32(sc, CT_BLT_CONTROL, cmd); chipsfb_write32(sc, CT_BLT_BG, colour); chipsfb_write32(sc, CT_BLT_FG, colour); chipsfb_write32(sc, CT_BLT_SIZE, size); #ifdef CHIPSFB_WAIT chipsfb_wait_idle(sc); #endif } static void chipsfb_putchar(void *cookie, int row, int col, u_int c, long attr) { struct rasops_info *ri = cookie; struct vcons_screen *scr = ri->ri_hw; struct chipsfb_softc *sc = scr->scr_cookie; if (__predict_false((unsigned int)row > ri->ri_rows || (unsigned int)col > ri->ri_cols)) return; if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { uint8_t *data; int fg, bg, uc; int x, y, wi, he; wi = ri->ri_font->fontwidth; he = ri->ri_font->fontheight; if (!CHAR_IN_FONT(c, ri->ri_font)) return; bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; x = ri->ri_xorigin + col * wi; y = ri->ri_yorigin + row * he; if (c == 0x20) { chipsfb_rectfill(sc, x, y, wi, he, bg); } else { uc = c-ri->ri_font->firstchar; data = (uint8_t *)ri->ri_font->data + uc * ri->ri_fontscale; chipsfb_setup_mono(sc, x, y, wi, he, fg, bg); chipsfb_feed(sc, ri->ri_font->stride * he, data); } } } static void chipsfb_setup_mono(struct chipsfb_softc *sc, int xd, int yd, int width, int height, uint32_t fg, uint32_t bg) { uint32_t dst, cmd, stride, size; cmd = BLT_PAT_IS_SOLID | BLT_SRC_IS_CPU | BLT_SRC_IS_MONO | ROP_COPY; /* we assume 8 bit for now */ dst = xd + yd * sc->linebytes; stride = (sc->linebytes << 16); size = (height << 16) | width; chipsfb_wait_idle(sc); chipsfb_write32(sc, CT_BLT_STRIDE, stride); chipsfb_write32(sc, CT_BLT_EXPCTL, MONO_SRC_ALIGN_BYTE); chipsfb_write32(sc, CT_BLT_DSTADDR, dst); chipsfb_write32(sc, CT_BLT_SRCADDR, 0); chipsfb_write32(sc, CT_BLT_CONTROL, cmd); chipsfb_write32(sc, CT_BLT_BG, bg); chipsfb_write32(sc, CT_BLT_FG, fg); chipsfb_write32(sc, CT_BLT_SIZE, size); } static void chipsfb_feed(struct chipsfb_softc *sc, int count, uint8_t *data) { int i; uint32_t latch = 0, bork; int shift = 0; for (i = 0; i < count; i++) { bork = data[i]; latch |= (bork << shift); if (shift == 24) { chipsfb_write32(sc, CT_OFF_DATA, latch); latch = 0; shift = 0; } else shift += 8; } if (shift != 0) { chipsfb_write32(sc, CT_OFF_DATA, latch); } /* apparently the chip wants 64bit-aligned data or it won't go idle */ if ((count + 3) & 0x04) { chipsfb_write32(sc, CT_OFF_DATA, 0); } #ifdef CHIPSFB_WAIT chipsfb_wait_idle(sc); #endif } #if 0 static void chipsfb_showpal(struct chipsfb_softc *sc) { int i, x = 0; for (i = 0; i < 16; i++) { chipsfb_rectfill(sc, x, 0, 64, 64, i); x += 64; } } #endif #if 0 static int chipsfb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) { return 0; } #endif static void chipsfb_restore_palette(struct chipsfb_softc *sc) { int i; for (i = 0; i < 256; i++) { chipsfb_putpalreg(sc, i, sc->sc_cmap_red[i], sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); } } /* * wsdisplay_accessops */ static int chipsfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l) { struct vcons_data *vd = v; struct chipsfb_softc *sc = vd->cookie; struct wsdisplay_fbinfo *wdf; struct vcons_screen *ms = vd->active; switch (cmd) { case WSDISPLAYIO_GTYPE: *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; return 0; case WSDISPLAYIO_GINFO: wdf = (void *)data; wdf->height = ms->scr_ri.ri_height; wdf->width = ms->scr_ri.ri_width; wdf->depth = ms->scr_ri.ri_depth; wdf->cmsize = 256; return 0; case WSDISPLAYIO_GETCMAP: return chipsfb_getcmap(sc, (struct wsdisplay_cmap *)data); case WSDISPLAYIO_PUTCMAP: return chipsfb_putcmap(sc, (struct wsdisplay_cmap *)data); /* PCI config read/write passthrough. */ case PCI_IOC_CFGREAD: case PCI_IOC_CFGWRITE: return (pci_devioctl(sc->sc_pc, sc->sc_pcitag, cmd, data, flag, l)); case WSDISPLAYIO_SMODE: { int new_mode = *(int*)data; if (new_mode != sc->sc_mode) { sc->sc_mode = new_mode; if(new_mode == WSDISPLAYIO_MODE_EMUL) { chipsfb_restore_palette(sc); vcons_redraw_screen(ms); } } } return 0; } return EPASSTHROUGH; } static paddr_t chipsfb_mmap(void *v, void *vs, off_t offset, int prot) { struct vcons_data *vd = v; struct chipsfb_softc *sc = vd->cookie; struct lwp *me; paddr_t pa; /* 'regular' framebuffer mmap()ing */ if (offset < sc->memsize) { pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot, BUS_SPACE_MAP_LINEAR); return pa; } /* * restrict all other mappings to processes with superuser privileges * or the kernel itself */ me = curlwp; if (me != NULL) { if (kauth_authorize_generic(me->l_cred, KAUTH_GENERIC_ISSUSER, NULL) != 0) { aprint_normal_dev(&sc->sc_dev, "mmap() rejected.\n"); return -1; } } if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, BUS_SPACE_MAP_LINEAR); return pa; } #ifdef PCI_MAGIC_IO_RANGE /* allow mapping of IO space */ if ((offset >= PCI_MAGIC_IO_RANGE) && (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 0, prot, BUS_SPACE_MAP_LINEAR); return pa; } #endif #ifdef OFB_ALLOW_OTHERS if (offset >= 0x80000000) { pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, BUS_SPACE_MAP_LINEAR); return pa; } #endif return -1; } static void chipsfb_init_screen(void *cookie, struct vcons_screen *scr, int existing, long *defattr) { struct chipsfb_softc *sc = cookie; struct rasops_info *ri = &scr->scr_ri; ri->ri_depth = sc->bits_per_pixel; ri->ri_width = sc->width; ri->ri_height = sc->height; ri->ri_stride = sc->width; ri->ri_flg = RI_CENTER | RI_FULLCLEAR; ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh); #ifdef CHIPSFB_DEBUG aprint_debug("addr: %08lx\n", (ulong)ri->ri_bits); #endif if (existing) { ri->ri_flg |= RI_CLEAR; } rasops_init(ri, sc->height/8, sc->width/8); ri->ri_caps = WSSCREEN_WSCOLORS; rasops_reconfig(ri, sc->height / ri->ri_font->fontheight, sc->width / ri->ri_font->fontwidth); ri->ri_hw = scr; ri->ri_ops.copyrows = chipsfb_copyrows; ri->ri_ops.copycols = chipsfb_copycols; ri->ri_ops.eraserows = chipsfb_eraserows; ri->ri_ops.erasecols = chipsfb_erasecols; ri->ri_ops.cursor = chipsfb_cursor; ri->ri_ops.putchar = chipsfb_putchar; } #if 0 int chipsfb_load_font(void *v, void *cookie, struct wsdisplay_font *data) { return 0; } #endif static void chipsfb_init(struct chipsfb_softc *sc) { chipsfb_wait_idle(sc); chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_IO_CONTROL, ENABLE_CRTC_EXT | ENABLE_ATTR_EXT); chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_ADDR_MAPPING, ENABLE_LINEAR); /* setup the blitter */ } static uint32_t chipsfb_probe_vram(struct chipsfb_softc *sc) { uint32_t ofs = 0x00080000; /* 512kB */ /* * advance in 0.5MB steps, see if we can read back what we wrote and * if what we wrote to 0 is left untouched. Max. fb size is 4MB so * we voluntarily stop there. */ chipsfb_write32(sc, 0, 0xf0f0f0f0); chipsfb_write32(sc, ofs, 0x0f0f0f0f); while ((chipsfb_read32(sc, 0) == 0xf0f0f0f0) && (chipsfb_read32(sc, ofs) == 0x0f0f0f0f) && (ofs < 0x00400000)) { ofs += 0x00080000; chipsfb_write32(sc, ofs, 0x0f0f0f0f); } return ofs; }