/* $NetBSD: gendiofb.c,v 1.1 2011/02/12 05:08:40 tsutsui Exp $ */ /* $OpenBSD: tvrx.c,v 1.1 2006/04/14 21:05:43 miod Exp $ */ /* * Copyright (c) 2006, Miodrag Vallat. * 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. * */ /* * dumb graphics routines for frame buffer on HP362 and HP382 based on tvrx.c */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct gendiofb_softc { device_t sc_dev; struct diofb *sc_fb; struct diofb sc_fb_store; int sc_scode; }; static int gendiofb_match(device_t, cfdata_t, void *); static void gendiofb_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(gendiofb, sizeof(struct gendiofb_softc), gendiofb_match, gendiofb_attach, NULL, NULL); static int gendiofb_reset(struct diofb *, int, struct diofbreg *); static int gendiofb_ioctl(void *, void *, u_long, void *, int, struct lwp *); static struct wsdisplay_accessops gendiofb_accessops = { gendiofb_ioctl, diofb_mmap, diofb_alloc_screen, diofb_free_screen, diofb_show_screen, NULL, /* load_font */ }; /* * Attachment glue */ static int gendiofb_match(device_t parent, cfdata_t cf, void *aux) { struct dio_attach_args *da = aux; if (da->da_id == DIO_DEVICE_ID_FRAMEBUFFER) { switch (da->da_secid) { case DIO_DEVICE_SECID_A147xVGA: case DIO_DEVICE_SECID_A1474MID: return 1; } } return 0; } static void gendiofb_attach(device_t parent, device_t self, void *aux) { struct gendiofb_softc *sc = device_private(self); struct dio_attach_args *da = aux; bus_space_handle_t bsh; struct diofbreg *fbr; bus_size_t size; sc->sc_dev = self; sc->sc_scode = da->da_scode; if (sc->sc_scode == conscode) { fbr = (struct diofbreg *)conaddr; /* already mapped */ sc->sc_fb = &diofb_cn; } else { sc->sc_fb = &sc->sc_fb_store; size = da->da_size; if (size > DIOII_DEVSIZE) /* XXX */ size = DIOII_DEVSIZE; if (bus_space_map(da->da_bst, da->da_addr, size, 0, &bsh)) { aprint_error(": can't map framebuffer\n"); return; } fbr = bus_space_vaddr(da->da_bst, bsh); if (gendiofb_reset(sc->sc_fb, sc->sc_scode, fbr) != 0) { aprint_error(": failed to reset\n"); return; } } diofb_end_attach(self, &gendiofb_accessops, sc->sc_fb, sc->sc_scode == conscode, NULL); } /* * Initialize hardware and display routines. */ static int gendiofb_reset(struct diofb *fb, int scode, struct diofbreg *fbr) { int rc; struct rasops_info *ri = &fb->ri; if ((rc = diofb_fbinquire(fb, scode, fbr)) != 0) return (rc); /* * We rely on the PROM to initialize the frame buffer in the mode * we expect it: cleared, overlay plane enabled and accessible * at the beginning of the video memory. * * This is NOT the mode we would end up by simply resetting the * board. */ ri->ri_depth = 8; ri->ri_stride = (fb->fbwidth * ri->ri_depth) / 8; ri->ri_flg = RI_CENTER | RI_FULLCLEAR; if (fb == &diofb_cn) ri->ri_flg |= RI_NO_AUTO; /* XXX */ ri->ri_bits = fb->fbkva; ri->ri_width = fb->dwidth; ri->ri_height = fb->dheight; ri->ri_hw = fb; /* * Ask for an unholy big display, rasops will trim this to more * reasonable values. */ rasops_init(ri, 160, 160); ri->ri_flg |= RI_FORCEMONO; /* no colormap */ diofb_resetcmap(fb); fb->wsd.name = fb->wsdname; fb->wsd.ncols = ri->ri_cols; fb->wsd.nrows = ri->ri_rows; fb->wsd.textops = &ri->ri_ops; fb->wsd.fontwidth = ri->ri_font->fontwidth; fb->wsd.fontheight = ri->ri_font->fontheight; fb->wsd.capabilities = ri->ri_caps; strlcpy(fb->wsdname, "std", sizeof(fb->wsdname)); return 0; } static int gendiofb_ioctl(void *v, void *vs, u_long cmd, void *data, int flags, struct lwp *l) { struct diofb *fb = v; struct wsdisplay_fbinfo *wdf; switch (cmd) { case WSDISPLAYIO_GTYPE: *(u_int *)data = WSDISPLAY_TYPE_UNKNOWN; return 0; case WSDISPLAYIO_SMODE: fb->mapmode = *(u_int *)data; return 0; case WSDISPLAYIO_GINFO: wdf = (void *)data; wdf->width = fb->ri.ri_width; wdf->height = fb->ri.ri_height; wdf->depth = fb->ri.ri_depth; wdf->cmsize = 0; return 0; case WSDISPLAYIO_LINEBYTES: *(u_int *)data = fb->ri.ri_stride; return 0; case WSDISPLAYIO_GETCMAP: case WSDISPLAYIO_PUTCMAP: /* until color support is implemented */ return EPASSTHROUGH; case WSDISPLAYIO_GVIDEO: case WSDISPLAYIO_SVIDEO: /* unsupported */ return EPASSTHROUGH; } return EPASSTHROUGH; } /* * Console attachment */ int gendiofbcnattach(bus_space_tag_t bst, bus_addr_t addr, int scode) { bus_space_handle_t bsh; void *va; struct diofbreg *fbr; struct diofb *fb = &diofb_cn; bus_size_t size; if (bus_space_map(bst, addr, PAGE_SIZE, 0, &bsh)) return 1; va = bus_space_vaddr(bst, bsh); fbr = va; if (badaddr(va) || fbr->id != GRFHWID || (fbr->fbid != DIO_DEVICE_SECID_A1474MID && fbr->fbid != DIO_DEVICE_SECID_A147xVGA)) { bus_space_unmap(bst, bsh, PAGE_SIZE); return 1; } size = DIO_SIZE(scode, va); if (size > DIOII_DEVSIZE) /* XXX */ size = DIOII_DEVSIZE; bus_space_unmap(bst, bsh, PAGE_SIZE); if (bus_space_map(bst, addr, size, 0, &bsh)) return 1; va = bus_space_vaddr(bst, bsh); /* * Initialize the framebuffer hardware. */ conscode = scode; conaddr = va; gendiofb_reset(fb, conscode, (struct diofbreg *)conaddr); /* * Initialize the terminal emulator. */ diofb_cnattach(fb); return 0; }