/* $NetBSD: genfb_grfbus.c,v 1.1 2019/07/26 10:48:44 rin Exp $ */ /* NetBSD: simplefb.c,v 1.7 2019/01/30 00:55:04 jmcneill Exp */ /*- * Copyright (c) 2017 Jared McNeill * 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. */ /* NetBSD: macfb.c,v 1.20 2012/10/27 17:17:59 chs Exp */ /* * Copyright (c) 1998 Matt DeBergalis * 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 Matt DeBergalis * 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 "opt_wsdisplay_compat.h" #include __KERNEL_RCSID(0, "$NetBSD: genfb_grfbus.c,v 1.1 2019/07/26 10:48:44 rin Exp $"); #include #include #include #include #include #include #include #include #include #include #include struct genfb_grfbus_softc { struct genfb_softc sc_gen; uint32_t sc_width; uint32_t sc_height; uint8_t sc_depth; uint16_t sc_stride; paddr_t sc_paddr; vaddr_t sc_vaddr; void (*sc_set_mapreg)(void *, int, int, int, int); struct grfbus_softc *sc_parent; }; static int genfb_grfbus_ioctl(void *, void *, u_long, void *, int, lwp_t *); static paddr_t genfb_grfbus_mmap(void *, void *, off_t, int); static struct genfb_ops gfb_ops = { .genfb_ioctl = genfb_grfbus_ioctl, .genfb_mmap = genfb_grfbus_mmap, }; static struct genfb_colormap_callback gfb_cmcb; static int __unused genfb_grfbus_is_console(paddr_t addr) { if (addr != mac68k_video.mv_phys && (addr >= 0xf9000000 && addr <= 0xfeffffff)) { /* * This is in the NuBus standard slot space range, so we * may well have to look at 0xFssxxxxx, too. Mask off the * slot number and duplicate it in bits 20-23, per IM:V * pp 459, 463, and IM:VI ch 30 p 17. * Note: this is an ugly hack and I wish I knew what * to do about it. -- sr */ addr = (paddr_t)(((u_long)addr & 0xff0fffff) | (((u_long)addr & 0x0f000000) >> 4)); } return ((mac68k_machine.serial_console & 0x03) == 0 && (addr == mac68k_video.mv_phys)); } static int genfb_grfbus_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, lwp_t *l) { struct genfb_grfbus_softc * const sc = v; #if 0 struct wsdisplayio_bus_id *busid; #endif struct wsdisplayio_fbinfo *fbi; struct rasops_info *ri; int error; switch (cmd) { case WSDISPLAYIO_GTYPE: *(u_int *)data = WSDISPLAY_TYPE_GENFB; return 0; #if 0 case WSDISPLAYIO_GET_BUSID: busid = data; busid->bus_type = WSDISPLAYIO_BUS_GRFBUS; return 0; #endif case WSDISPLAYIO_GET_FBINFO: fbi = data; ri = &sc->sc_gen.vd.active->scr_ri; error = wsdisplayio_get_fbinfo(ri, fbi); if (error == 0) { /* * XXX * if the fb isn't page aligned, tell wsfb to skip the * unaligned part */ fbi->fbi_fboffset = m68k_page_offset(sc->sc_paddr); fbi->fbi_flags |= WSFB_VRAM_IS_RAM; } return error; default: return EPASSTHROUGH; } } static paddr_t genfb_grfbus_mmap(void *v, void *vs, off_t off, int prot) { struct genfb_grfbus_softc * const sc = v; if (off < 0 || off >= m68k_page_offset(sc->sc_paddr) + sc->sc_gen.sc_fbsize) return -1; return m68k_btop(m68k_trunc_page(sc->sc_paddr) + off); } static int genfb_grfbus_attach_genfb(struct genfb_grfbus_softc *sc) { device_t dev = sc->sc_gen.sc_dev; prop_dictionary_t dict = device_properties(dev); bool is_console; prop_dictionary_set_uint32(dict, "width", sc->sc_width); prop_dictionary_set_uint32(dict, "height", sc->sc_height); prop_dictionary_set_uint8(dict, "depth", sc->sc_depth); prop_dictionary_set_uint16(dict, "linebytes", sc->sc_stride); prop_dictionary_set_uint32(dict, "address", sc->sc_paddr); prop_dictionary_set_uint64(dict, "virtual_address", sc->sc_vaddr); if (sc->sc_set_mapreg != NULL) { gfb_cmcb.gcc_cookie = sc->sc_parent; gfb_cmcb.gcc_set_mapreg = sc->sc_set_mapreg; prop_dictionary_set_uint64(dict, "cmap_callback", (uint64_t)(uintptr_t)&gfb_cmcb); } genfb_init(&sc->sc_gen); if (sc->sc_gen.sc_width == 0 || sc->sc_gen.sc_fbsize == 0) { aprint_normal(": disabled\n"); return ENXIO; } aprint_naive("\n"); aprint_normal(": colormap callback %sprovided\n", sc->sc_set_mapreg != NULL ? "" : "not "); is_console = genfb_grfbus_is_console(sc->sc_paddr); if (is_console) aprint_normal_dev(sc->sc_gen.sc_dev, "switching to framebuffer console\n"); prop_dictionary_set_bool(dict, "is_console", is_console); genfb_attach(&sc->sc_gen, &gfb_ops); return 0; } static int genfb_grfbus_match(device_t parent, cfdata_t cf, void *aux) { return 1; } static void genfb_grfbus_attach(device_t parent, device_t self, void *aux) { struct genfb_grfbus_softc * const sc = device_private(self); struct grfbus_attach_args *ga = aux; struct grfmode *gm = ga->ga_grfmode; sc->sc_gen.sc_dev = self; sc->sc_width = gm->width; sc->sc_height = gm->height; /* * XXX: tested on Quadra 840AV */ sc->sc_depth = gm->psize == 16 ? 15 : gm->psize; sc->sc_stride = gm->rowbytes; sc->sc_paddr = ga->ga_phys + gm->fboff; sc->sc_vaddr = (vaddr_t)gm->fbbase + gm->fboff; sc->sc_set_mapreg = ga->ga_set_mapreg; sc->sc_parent = ga->ga_parent; genfb_grfbus_attach_genfb(sc); } CFATTACH_DECL_NEW(genfb_grfbus, sizeof(struct genfb_grfbus_softc), genfb_grfbus_match, genfb_grfbus_attach, NULL, NULL);