/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2003 Peter Grehan * 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 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 AUTHOR 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static int ofwfb_ignore_mmap_checks = 1; static int ofwfb_reset_on_switch = 1; static SYSCTL_NODE(_hw, OID_AUTO, ofwfb, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "ofwfb"); SYSCTL_INT(_hw_ofwfb, OID_AUTO, relax_mmap, CTLFLAG_RW, &ofwfb_ignore_mmap_checks, 0, "relaxed mmap bounds checking"); SYSCTL_INT(_hw_ofwfb, OID_AUTO, reset_on_mode_switch, CTLFLAG_RW, &ofwfb_reset_on_switch, 0, "reset the framebuffer driver on mode switch"); extern u_char dflt_font_16[]; extern u_char dflt_font_14[]; extern u_char dflt_font_8[]; static int ofwfb_configure(int flags); static vi_probe_t ofwfb_probe; static vi_init_t ofwfb_init; static vi_get_info_t ofwfb_get_info; static vi_query_mode_t ofwfb_query_mode; static vi_set_mode_t ofwfb_set_mode; static vi_save_font_t ofwfb_save_font; static vi_load_font_t ofwfb_load_font; static vi_show_font_t ofwfb_show_font; static vi_save_palette_t ofwfb_save_palette; static vi_load_palette_t ofwfb_load_palette; static vi_set_border_t ofwfb_set_border; static vi_save_state_t ofwfb_save_state; static vi_load_state_t ofwfb_load_state; static vi_set_win_org_t ofwfb_set_win_org; static vi_read_hw_cursor_t ofwfb_read_hw_cursor; static vi_set_hw_cursor_t ofwfb_set_hw_cursor; static vi_set_hw_cursor_shape_t ofwfb_set_hw_cursor_shape; static vi_blank_display_t ofwfb_blank_display; static vi_mmap_t ofwfb_mmap; static vi_ioctl_t ofwfb_ioctl; static vi_clear_t ofwfb_clear; static vi_fill_rect_t ofwfb_fill_rect; static vi_bitblt_t ofwfb_bitblt; static vi_diag_t ofwfb_diag; static vi_save_cursor_palette_t ofwfb_save_cursor_palette; static vi_load_cursor_palette_t ofwfb_load_cursor_palette; static vi_copy_t ofwfb_copy; static vi_putp_t ofwfb_putp; static vi_putc_t ofwfb_putc; static vi_puts_t ofwfb_puts; static vi_putm_t ofwfb_putm; static video_switch_t ofwfbvidsw = { .probe = ofwfb_probe, .init = ofwfb_init, .get_info = ofwfb_get_info, .query_mode = ofwfb_query_mode, .set_mode = ofwfb_set_mode, .save_font = ofwfb_save_font, .load_font = ofwfb_load_font, .show_font = ofwfb_show_font, .save_palette = ofwfb_save_palette, .load_palette = ofwfb_load_palette, .set_border = ofwfb_set_border, .save_state = ofwfb_save_state, .load_state = ofwfb_load_state, .set_win_org = ofwfb_set_win_org, .read_hw_cursor = ofwfb_read_hw_cursor, .set_hw_cursor = ofwfb_set_hw_cursor, .set_hw_cursor_shape = ofwfb_set_hw_cursor_shape, .blank_display = ofwfb_blank_display, .mmap = ofwfb_mmap, .ioctl = ofwfb_ioctl, .clear = ofwfb_clear, .fill_rect = ofwfb_fill_rect, .bitblt = ofwfb_bitblt, .diag = ofwfb_diag, .save_cursor_palette = ofwfb_save_cursor_palette, .load_cursor_palette = ofwfb_load_cursor_palette, .copy = ofwfb_copy, .putp = ofwfb_putp, .putc = ofwfb_putc, .puts = ofwfb_puts, .putm = ofwfb_putm, }; /* * bitmap depth-specific routines */ static vi_blank_display_t ofwfb_blank_display8; static vi_putc_t ofwfb_putc8; static vi_putm_t ofwfb_putm8; static vi_set_border_t ofwfb_set_border8; static vi_blank_display_t ofwfb_blank_display32; static vi_putc_t ofwfb_putc32; static vi_putm_t ofwfb_putm32; static vi_set_border_t ofwfb_set_border32; VIDEO_DRIVER(ofwfb, ofwfbvidsw, ofwfb_configure); extern sc_rndr_sw_t txtrndrsw; RENDERER(ofwfb, 0, txtrndrsw, gfb_set); RENDERER_MODULE(ofwfb, gfb_set); /* * Define the iso6429-1983 colormap */ static struct { uint8_t red; uint8_t green; uint8_t blue; } ofwfb_cmap[16] = { /* # R G B Color */ /* - - - - ----- */ { 0x00, 0x00, 0x00 }, /* 0 0 0 0 Black */ { 0x00, 0x00, 0xaa }, /* 1 0 0 2/3 Blue */ { 0x00, 0xaa, 0x00 }, /* 2 0 2/3 0 Green */ { 0x00, 0xaa, 0xaa }, /* 3 0 2/3 2/3 Cyan */ { 0xaa, 0x00, 0x00 }, /* 4 2/3 0 0 Red */ { 0xaa, 0x00, 0xaa }, /* 5 2/3 0 2/3 Magenta */ { 0xaa, 0x55, 0x00 }, /* 6 2/3 1/3 0 Brown */ { 0xaa, 0xaa, 0xaa }, /* 7 2/3 2/3 2/3 White */ { 0x55, 0x55, 0x55 }, /* 8 1/3 1/3 1/3 Gray */ { 0x55, 0x55, 0xff }, /* 9 1/3 1/3 1 Bright Blue */ { 0x55, 0xff, 0x55 }, /* 10 1/3 1 1/3 Bright Green */ { 0x55, 0xff, 0xff }, /* 11 1/3 1 1 Bright Cyan */ { 0xff, 0x55, 0x55 }, /* 12 1 1/3 1/3 Bright Red */ { 0xff, 0x55, 0xff }, /* 13 1 1/3 1 Bright Magenta */ { 0xff, 0xff, 0x80 }, /* 14 1 1 1/3 Bright Yellow */ { 0xff, 0xff, 0xff } /* 15 1 1 1 Bright White */ }; #define TODO printf("%s: unimplemented\n", __func__) static u_int16_t ofwfb_static_window[ROW*COL]; static struct ofwfb_softc ofwfb_softc; static __inline int ofwfb_background(uint8_t attr) { return (attr >> 4); } static __inline int ofwfb_foreground(uint8_t attr) { return (attr & 0x0f); } static u_int ofwfb_pix32(struct ofwfb_softc *sc, int attr) { u_int retval; if (sc->sc_tag == &bs_le_tag) retval = (ofwfb_cmap[attr].red << 16) | (ofwfb_cmap[attr].green << 8) | ofwfb_cmap[attr].blue; else retval = (ofwfb_cmap[attr].blue << 16) | (ofwfb_cmap[attr].green << 8) | ofwfb_cmap[attr].red; return (retval); } static int ofwfb_configure(int flags) { struct ofwfb_softc *sc; phandle_t chosen; ihandle_t stdout; phandle_t node; uint32_t fb_phys; int depth; int disable; int len; int i; char type[16]; static int done = 0; disable = 0; TUNABLE_INT_FETCH("hw.syscons.disable", &disable); if (disable != 0) return (0); if (done != 0) return (0); done = 1; sc = &ofwfb_softc; chosen = OF_finddevice("/chosen"); OF_getprop(chosen, "stdout", &stdout, sizeof(stdout)); node = OF_instance_to_package(stdout); if (node == -1) { /* * The "/chosen/stdout" does not exist try * using "screen" directly. */ node = OF_finddevice("screen"); } OF_getprop(node, "device_type", type, sizeof(type)); if (strcmp(type, "display") != 0) return (0); /* Only support 8 and 32-bit framebuffers */ OF_getprop(node, "depth", &depth, sizeof(depth)); if (depth == 8) { sc->sc_blank = ofwfb_blank_display8; sc->sc_putc = ofwfb_putc8; sc->sc_putm = ofwfb_putm8; sc->sc_set_border = ofwfb_set_border8; } else if (depth == 32) { sc->sc_blank = ofwfb_blank_display32; sc->sc_putc = ofwfb_putc32; sc->sc_putm = ofwfb_putm32; sc->sc_set_border = ofwfb_set_border32; } else return (0); if (OF_getproplen(node, "height") != sizeof(sc->sc_height) || OF_getproplen(node, "width") != sizeof(sc->sc_width) || OF_getproplen(node, "linebytes") != sizeof(sc->sc_stride)) return (0); sc->sc_depth = depth; sc->sc_node = node; sc->sc_console = 1; OF_getprop(node, "height", &sc->sc_height, sizeof(sc->sc_height)); OF_getprop(node, "width", &sc->sc_width, sizeof(sc->sc_width)); OF_getprop(node, "linebytes", &sc->sc_stride, sizeof(sc->sc_stride)); /* * Get the PCI addresses of the adapter. The node may be the * child of the PCI device: in that case, try the parent for * the assigned-addresses property. */ len = OF_getprop(node, "assigned-addresses", sc->sc_pciaddrs, sizeof(sc->sc_pciaddrs)); if (len == -1) { len = OF_getprop(OF_parent(node), "assigned-addresses", sc->sc_pciaddrs, sizeof(sc->sc_pciaddrs)); } if (len == -1) len = 0; sc->sc_num_pciaddrs = len / sizeof(struct ofw_pci_register); /* * Grab the physical address of the framebuffer, and then map it * into our memory space. If the MMU is not yet up, it will be * remapped for us when relocation turns on. * * XXX We assume #address-cells is 1 at this point. */ if (OF_getproplen(node, "address") == sizeof(fb_phys)) { OF_getprop(node, "address", &fb_phys, sizeof(fb_phys)); sc->sc_tag = &bs_be_tag; bus_space_map(sc->sc_tag, fb_phys, sc->sc_height * sc->sc_stride, BUS_SPACE_MAP_PREFETCHABLE, &sc->sc_addr); } else { /* * Some IBM systems don't have an address property. Try to * guess the framebuffer region from the assigned addresses. * This is ugly, but there doesn't seem to be an alternative. * Linux does the same thing. */ fb_phys = sc->sc_num_pciaddrs; for (i = 0; i < sc->sc_num_pciaddrs; i++) { /* If it is too small, not the framebuffer */ if (sc->sc_pciaddrs[i].size_lo < sc->sc_stride*sc->sc_height) continue; /* If it is not memory, it isn't either */ if (!(sc->sc_pciaddrs[i].phys_hi & OFW_PCI_PHYS_HI_SPACE_MEM32)) continue; /* This could be the framebuffer */ fb_phys = i; /* If it is prefetchable, it certainly is */ if (sc->sc_pciaddrs[i].phys_hi & OFW_PCI_PHYS_HI_PREFETCHABLE) break; } if (fb_phys == sc->sc_num_pciaddrs) return (0); OF_decode_addr(node, fb_phys, &sc->sc_tag, &sc->sc_addr, NULL); } ofwfb_init(0, &sc->sc_va, 0); return (0); } static int ofwfb_probe(int unit, video_adapter_t **adp, void *arg, int flags) { TODO; return (0); } static int ofwfb_init(int unit, video_adapter_t *adp, int flags) { struct ofwfb_softc *sc; video_info_t *vi; int cborder; int font_height; sc = (struct ofwfb_softc *)adp; vi = &adp->va_info; vid_init_struct(adp, "ofwfb", -1, unit); /* The default font size can be overridden by loader */ font_height = 16; TUNABLE_INT_FETCH("hw.syscons.fsize", &font_height); if (font_height == 8) { sc->sc_font = dflt_font_8; sc->sc_font_height = 8; } else if (font_height == 14) { sc->sc_font = dflt_font_14; sc->sc_font_height = 14; } else { /* default is 8x16 */ sc->sc_font = dflt_font_16; sc->sc_font_height = 16; } /* The user can set a border in chars - default is 1 char width */ cborder = 1; TUNABLE_INT_FETCH("hw.syscons.border", &cborder); vi->vi_cheight = sc->sc_font_height; vi->vi_width = sc->sc_width/8 - 2*cborder; vi->vi_height = sc->sc_height/sc->sc_font_height - 2*cborder; vi->vi_cwidth = 8; /* * Clamp width/height to syscons maximums */ if (vi->vi_width > COL) vi->vi_width = COL; if (vi->vi_height > ROW) vi->vi_height = ROW; sc->sc_xmargin = (sc->sc_width - (vi->vi_width * vi->vi_cwidth)) / 2; sc->sc_ymargin = (sc->sc_height - (vi->vi_height * vi->vi_cheight))/2; /* * Avoid huge amounts of conditional code in syscons by * defining a dummy h/w text display buffer. */ adp->va_window = (vm_offset_t) ofwfb_static_window; /* * Enable future font-loading and flag color support, as well as * adding V_ADP_MODECHANGE so that we ofwfb_set_mode() gets called * when the X server shuts down. This enables us to get the console * back when X disappears. */ adp->va_flags |= V_ADP_FONT | V_ADP_COLOR | V_ADP_MODECHANGE; ofwfb_set_mode(&sc->sc_va, 0); vid_register(&sc->sc_va); return (0); } static int ofwfb_get_info(video_adapter_t *adp, int mode, video_info_t *info) { bcopy(&adp->va_info, info, sizeof(*info)); return (0); } static int ofwfb_query_mode(video_adapter_t *adp, video_info_t *info) { TODO; return (0); } static int ofwfb_set_mode(video_adapter_t *adp, int mode) { struct ofwfb_softc *sc; char name[64]; ihandle_t ih; int i, retval; sc = (struct ofwfb_softc *)adp; if (ofwfb_reset_on_switch) { /* * Open the display device, which will initialize it. */ memset(name, 0, sizeof(name)); OF_package_to_path(sc->sc_node, name, sizeof(name)); ih = OF_open(name); if (sc->sc_depth == 8) { /* * Install the ISO6429 colormap - older OFW systems * don't do this by default */ for (i = 0; i < 16; i++) { OF_call_method("color!", ih, 4, 1, ofwfb_cmap[i].red, ofwfb_cmap[i].green, ofwfb_cmap[i].blue, i, &retval); } } } ofwfb_blank_display(&sc->sc_va, V_DISPLAY_ON); return (0); } static int ofwfb_save_font(video_adapter_t *adp, int page, int size, int width, u_char *data, int c, int count) { TODO; return (0); } static int ofwfb_load_font(video_adapter_t *adp, int page, int size, int width, u_char *data, int c, int count) { struct ofwfb_softc *sc; sc = (struct ofwfb_softc *)adp; /* * syscons code has already determined that current width/height * are unchanged for this new font */ sc->sc_font = data; return (0); } static int ofwfb_show_font(video_adapter_t *adp, int page) { return (0); } static int ofwfb_save_palette(video_adapter_t *adp, u_char *palette) { /* TODO; */ return (0); } static int ofwfb_load_palette(video_adapter_t *adp, u_char *palette) { /* TODO; */ return (0); } static int ofwfb_set_border8(video_adapter_t *adp, int border) { struct ofwfb_softc *sc; int i, j; uint8_t *addr; uint8_t bground; sc = (struct ofwfb_softc *)adp; bground = ofwfb_background(border); /* Set top margin */ addr = (uint8_t *) sc->sc_addr; for (i = 0; i < sc->sc_ymargin; i++) { for (j = 0; j < sc->sc_width; j++) { *(addr + j) = bground; } addr += sc->sc_stride; } /* bottom margin */ addr = (uint8_t *) sc->sc_addr + (sc->sc_height - sc->sc_ymargin)*sc->sc_stride; for (i = 0; i < sc->sc_ymargin; i++) { for (j = 0; j < sc->sc_width; j++) { *(addr + j) = bground; } addr += sc->sc_stride; } /* remaining left and right borders */ addr = (uint8_t *) sc->sc_addr + sc->sc_ymargin*sc->sc_stride; for (i = 0; i < sc->sc_height - 2*sc->sc_xmargin; i++) { for (j = 0; j < sc->sc_xmargin; j++) { *(addr + j) = bground; *(addr + j + sc->sc_width - sc->sc_xmargin) = bground; } addr += sc->sc_stride; } return (0); } static int ofwfb_set_border32(video_adapter_t *adp, int border) { /* XXX Be lazy for now and blank entire screen */ return (ofwfb_blank_display32(adp, border)); } static int ofwfb_set_border(video_adapter_t *adp, int border) { struct ofwfb_softc *sc; sc = (struct ofwfb_softc *)adp; return ((*sc->sc_set_border)(adp, border)); } static int ofwfb_save_state(video_adapter_t *adp, void *p, size_t size) { TODO; return (0); } static int ofwfb_load_state(video_adapter_t *adp, void *p) { TODO; return (0); } static int ofwfb_set_win_org(video_adapter_t *adp, off_t offset) { TODO; return (0); } static int ofwfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row) { *col = 0; *row = 0; return (0); } static int ofwfb_set_hw_cursor(video_adapter_t *adp, int col, int row) { return (0); } static int ofwfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, int celsize, int blink) { return (0); } static int ofwfb_blank_display8(video_adapter_t *adp, int mode) { struct ofwfb_softc *sc; int i; uint32_t *addr; uint32_t color; uint32_t end; sc = (struct ofwfb_softc *)adp; addr = (uint32_t *) sc->sc_addr; end = (sc->sc_stride/4) * sc->sc_height; /* Splat 4 pixels at once. */ color = (ofwfb_background(SC_NORM_ATTR) << 24) | (ofwfb_background(SC_NORM_ATTR) << 16) | (ofwfb_background(SC_NORM_ATTR) << 8) | (ofwfb_background(SC_NORM_ATTR)); for (i = 0; i < end; i++) *(addr + i) = color; return (0); } static int ofwfb_blank_display32(video_adapter_t *adp, int mode) { struct ofwfb_softc *sc; int i; uint32_t *addr, blank; sc = (struct ofwfb_softc *)adp; addr = (uint32_t *) sc->sc_addr; blank = ofwfb_pix32(sc, ofwfb_background(SC_NORM_ATTR)); for (i = 0; i < (sc->sc_stride/4)*sc->sc_height; i++) *(addr + i) = blank; return (0); } static int ofwfb_blank_display(video_adapter_t *adp, int mode) { struct ofwfb_softc *sc; sc = (struct ofwfb_softc *)adp; return ((*sc->sc_blank)(adp, mode)); } static int ofwfb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr, int prot, vm_memattr_t *memattr) { struct ofwfb_softc *sc; int i; sc = (struct ofwfb_softc *)adp; /* * Make sure the requested address lies within the PCI device's * assigned addrs */ for (i = 0; i < sc->sc_num_pciaddrs; i++) if (offset >= sc->sc_pciaddrs[i].phys_lo && offset < (sc->sc_pciaddrs[i].phys_lo + sc->sc_pciaddrs[i].size_lo)) { /* * If this is a prefetchable BAR, we can (and should) * enable write-combining. */ if (sc->sc_pciaddrs[i].phys_hi & OFW_PCI_PHYS_HI_PREFETCHABLE) *memattr = VM_MEMATTR_WRITE_COMBINING; *paddr = offset; return (0); } /* * Hack for Radeon... */ if (ofwfb_ignore_mmap_checks) { *paddr = offset; return (0); } /* * This might be a legacy VGA mem request: if so, just point it at the * framebuffer, since it shouldn't be touched */ if (offset < sc->sc_stride*sc->sc_height) { *paddr = sc->sc_addr + offset; return (0); } /* * Error if we didn't have a better idea. */ if (sc->sc_num_pciaddrs == 0) return (ENOMEM); return (EINVAL); } static int ofwfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data) { return (0); } static int ofwfb_clear(video_adapter_t *adp) { TODO; return (0); } static int ofwfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) { TODO; return (0); } static int ofwfb_bitblt(video_adapter_t *adp, ...) { TODO; return (0); } static int ofwfb_diag(video_adapter_t *adp, int level) { TODO; return (0); } static int ofwfb_save_cursor_palette(video_adapter_t *adp, u_char *palette) { TODO; return (0); } static int ofwfb_load_cursor_palette(video_adapter_t *adp, u_char *palette) { TODO; return (0); } static int ofwfb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n) { TODO; return (0); } static int ofwfb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a, int size, int bpp, int bit_ltor, int byte_ltor) { TODO; return (0); } static int ofwfb_putc8(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a) { struct ofwfb_softc *sc; int row; int col; int i; uint32_t *addr; u_char *p, fg, bg; union { uint32_t l; uint8_t c[4]; } ch1, ch2; sc = (struct ofwfb_softc *)adp; row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight; col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth; p = sc->sc_font + c*sc->sc_font_height; addr = (u_int32_t *)((uintptr_t)sc->sc_addr + (row + sc->sc_ymargin)*sc->sc_stride + col + sc->sc_xmargin); fg = ofwfb_foreground(a); bg = ofwfb_background(a); for (i = 0; i < sc->sc_font_height; i++) { u_char fline = p[i]; /* * Assume that there is more background than foreground * in characters and init accordingly */ ch1.l = ch2.l = (bg << 24) | (bg << 16) | (bg << 8) | bg; /* * Calculate 2 x 4-chars at a time, and then * write these out. */ if (fline & 0x80) ch1.c[0] = fg; if (fline & 0x40) ch1.c[1] = fg; if (fline & 0x20) ch1.c[2] = fg; if (fline & 0x10) ch1.c[3] = fg; if (fline & 0x08) ch2.c[0] = fg; if (fline & 0x04) ch2.c[1] = fg; if (fline & 0x02) ch2.c[2] = fg; if (fline & 0x01) ch2.c[3] = fg; addr[0] = ch1.l; addr[1] = ch2.l; addr += (sc->sc_stride / sizeof(u_int32_t)); } return (0); } static int ofwfb_putc32(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a) { struct ofwfb_softc *sc; int row; int col; int i, j, k; uint32_t *addr, fg, bg; u_char *p; sc = (struct ofwfb_softc *)adp; row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight; col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth; p = sc->sc_font + c*sc->sc_font_height; addr = (uint32_t *)sc->sc_addr + (row + sc->sc_ymargin)*(sc->sc_stride/4) + col + sc->sc_xmargin; fg = ofwfb_pix32(sc, ofwfb_foreground(a)); bg = ofwfb_pix32(sc, ofwfb_background(a)); for (i = 0; i < sc->sc_font_height; i++) { for (j = 0, k = 7; j < 8; j++, k--) { if ((p[i] & (1 << k)) == 0) *(addr + j) = bg; else *(addr + j) = fg; } addr += (sc->sc_stride/4); } return (0); } static int ofwfb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a) { struct ofwfb_softc *sc; sc = (struct ofwfb_softc *)adp; return ((*sc->sc_putc)(adp, off, c, a)); } static int ofwfb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len) { int i; for (i = 0; i < len; i++) { ofwfb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8); } return (0); } static int ofwfb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image, uint32_t pixel_mask, int size, int width) { struct ofwfb_softc *sc; sc = (struct ofwfb_softc *)adp; return ((*sc->sc_putm)(adp, x, y, pixel_image, pixel_mask, size, width)); } static int ofwfb_putm8(video_adapter_t *adp, int x, int y, uint8_t *pixel_image, uint32_t pixel_mask, int size, int width) { struct ofwfb_softc *sc; int i, j, k; uint8_t *addr; u_char fg, bg; sc = (struct ofwfb_softc *)adp; addr = (u_int8_t *)((uintptr_t)sc->sc_addr + (y + sc->sc_ymargin)*sc->sc_stride + x + sc->sc_xmargin); fg = ofwfb_foreground(SC_NORM_ATTR); bg = ofwfb_background(SC_NORM_ATTR); for (i = 0; i < size && i+y < sc->sc_height - 2*sc->sc_ymargin; i++) { /* * Calculate 2 x 4-chars at a time, and then * write these out. */ for (j = 0, k = width; j < 8; j++, k--) { if (x + j >= sc->sc_width - 2*sc->sc_xmargin) continue; if (pixel_image[i] & (1 << k)) addr[j] = (addr[j] == fg) ? bg : fg; } addr += (sc->sc_stride / sizeof(u_int8_t)); } return (0); } static int ofwfb_putm32(video_adapter_t *adp, int x, int y, uint8_t *pixel_image, uint32_t pixel_mask, int size, int width) { struct ofwfb_softc *sc; int i, j, k; uint32_t fg, bg; uint32_t *addr; sc = (struct ofwfb_softc *)adp; addr = (uint32_t *)sc->sc_addr + (y + sc->sc_ymargin)*(sc->sc_stride/4) + x + sc->sc_xmargin; fg = ofwfb_pix32(sc, ofwfb_foreground(SC_NORM_ATTR)); bg = ofwfb_pix32(sc, ofwfb_background(SC_NORM_ATTR)); for (i = 0; i < size && i+y < sc->sc_height - 2*sc->sc_ymargin; i++) { for (j = 0, k = width; j < 8; j++, k--) { if (x + j >= sc->sc_width - 2*sc->sc_xmargin) continue; if (pixel_image[i] & (1 << k)) *(addr + j) = (*(addr + j) == fg) ? bg : fg; } addr += (sc->sc_stride/4); } return (0); } /* * Define the syscons nexus device attachment */ static void ofwfb_scidentify(driver_t *driver, device_t parent) { device_t child; /* * Add with a priority guaranteed to make it last on * the device list */ child = BUS_ADD_CHILD(parent, INT_MAX, SC_DRIVER_NAME, 0); } static int ofwfb_scprobe(device_t dev) { int error; device_set_desc(dev, "System console"); error = sc_probe_unit(device_get_unit(dev), device_get_flags(dev) | SC_AUTODETECT_KBD); if (error != 0) return (error); /* This is a fake device, so make sure we added it ourselves */ return (BUS_PROBE_NOWILDCARD); } static int ofwfb_scattach(device_t dev) { return (sc_attach_unit(device_get_unit(dev), device_get_flags(dev) | SC_AUTODETECT_KBD)); } static device_method_t ofwfb_sc_methods[] = { DEVMETHOD(device_identify, ofwfb_scidentify), DEVMETHOD(device_probe, ofwfb_scprobe), DEVMETHOD(device_attach, ofwfb_scattach), { 0, 0 } }; static driver_t ofwfb_sc_driver = { SC_DRIVER_NAME, ofwfb_sc_methods, sizeof(sc_softc_t), }; static devclass_t sc_devclass; DRIVER_MODULE(ofwfb, nexus, ofwfb_sc_driver, sc_devclass, 0, 0); /* * Utility routines from */ void ofwfb_bcopy(const void *s, void *d, size_t c) { bcopy(s, d, c); } void ofwfb_bzero(void *d, size_t c) { bzero(d, c); } void ofwfb_fillw(int pat, void *base, size_t cnt) { u_int16_t *bptr = base; while (cnt--) *bptr++ = pat; } u_int16_t ofwfb_readw(u_int16_t *addr) { return (*addr); } void ofwfb_writew(u_int16_t *addr, u_int16_t val) { *addr = val; }