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- /*-
- * 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 <sys/param.h>
- #include <sys/systm.h>
- #include <sys/module.h>
- #include <sys/bus.h>
- #include <sys/kernel.h>
- #include <sys/sysctl.h>
- #include <sys/limits.h>
- #include <sys/conf.h>
- #include <sys/cons.h>
- #include <sys/proc.h>
- #include <sys/fcntl.h>
- #include <sys/malloc.h>
- #include <sys/fbio.h>
- #include <sys/consio.h>
- #include <machine/bus.h>
- #include <machine/sc_machdep.h>
- #include <machine/vm.h>
- #include <sys/rman.h>
- #include <dev/fb/fbreg.h>
- #include <dev/syscons/syscons.h>
- #include <dev/ofw/openfirm.h>
- #include <dev/ofw/ofw_bus.h>
- #include <dev/ofw/ofw_pci.h>
- #include <powerpc/ofw/ofw_syscons.h>
- 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),
- };
- DRIVER_MODULE(ofwfb, nexus, ofwfb_sc_driver, 0, 0);
- /*
- * Utility routines from <dev/fb/fbreg.h>
- */
- 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;
- }
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