/* $NetBSD: voodoofb.c,v 1.56 2022/09/25 17:52:25 thorpej Exp $ */ /* * Copyright (c) 2005, 2006, 2012 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 3Dfx Voodoo3 graphics boards * Thanks to Andreas Drewke (andreas_dr@gmx.de) for his Voodoo3 driver for BeOS * which I used as reference / documentation */ #include __KERNEL_RCSID(0, "$NetBSD: voodoofb.c,v 1.56 2022/09/25 17:52:25 thorpej Exp $"); #include #include #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" struct voodoofb_softc { device_t sc_dev; pci_chipset_tag_t sc_pc; pcitag_t sc_pcitag; struct pci_attach_args sc_pa; bus_space_tag_t sc_memt; bus_space_tag_t sc_iot; bus_space_handle_t sc_memh; bus_space_tag_t sc_regt; bus_space_tag_t sc_ioregt; bus_space_handle_t sc_regh; bus_space_handle_t sc_ioregh; bus_addr_t sc_regs, sc_fb, sc_ioreg; bus_size_t sc_regsize, sc_fbsize, sc_ioregsize; void *sc_ih; #define MAX_CLOCK_VB 270000 /* Voodoo Banshee */ #define MAX_CLOCK_V3 300000 /* Voodoo3 */ #define MAX_CLOCK_V45 350000 /* Voodoo4/5 (not yet) */ uint32_t sc_max_clock; size_t sc_memsize; int sc_memtype; int sc_bits_per_pixel; int sc_width, sc_height, sc_linebytes; const struct videomode *sc_videomode; int sc_is_mapped; /* glyph cache */ long sc_defattr, sc_kernattr; uint32_t sc_glyphs_defattr[256]; uint32_t sc_glyphs_kernattr[256]; int sc_numglyphs, sc_usedglyphs; uint32_t sc_cache; /* offset where cache starts */ uint32_t sc_fmt; /* *fmt register */ void *sc_font; /* i2c stuff */ struct i2c_controller sc_i2c; uint8_t sc_edid_data[128]; struct edid_info sc_edid_info; uint32_t sc_i2creg; 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; struct vcons_data vd; }; struct voodoo_regs { uint8_t vr_crtc[31]; uint8_t vr_graph[9]; uint8_t vr_attr[21]; uint8_t vr_seq[5]; }; static struct vcons_screen voodoofb_console_screen; static int voodoofb_match(device_t, cfdata_t, void *); static void voodoofb_attach(device_t, device_t, void *); static int voodoofb_drm_print(void *, const char *); static int voodoofb_drm_unmap(struct voodoofb_softc *); static int voodoofb_drm_map(struct voodoofb_softc *); CFATTACH_DECL_NEW(voodoofb, sizeof(struct voodoofb_softc), voodoofb_match, voodoofb_attach, NULL, NULL); static bool voodoofb_is_console(struct voodoofb_softc *); static void voodoofb_init(struct voodoofb_softc *); static void voodoofb_cursor(void *, int, int, int); static void voodoofb_putchar(void *, int, int, u_int, long); static void voodoofb_putchar_aa(void *, int, int, u_int, long); static void voodoofb_copycols(void *, int, int, int, int); static void voodoofb_erasecols(void *, int, int, int, long); static void voodoofb_copyrows(void *, int, int, int); static void voodoofb_eraserows(void *, int, int, long); #if 0 static int voodoofb_allocattr(void *, int, int, int, long *); static void voodoofb_scroll(void *, void *, int); static int voodoofb_load_font(void *, void *, struct wsdisplay_font *); #endif static int voodoofb_putcmap(struct voodoofb_softc *, struct wsdisplay_cmap *); static int voodoofb_getcmap(struct voodoofb_softc *, struct wsdisplay_cmap *); static int voodoofb_putpalreg(struct voodoofb_softc *, uint8_t, uint8_t, uint8_t, uint8_t); static void voodoofb_bitblt(struct voodoofb_softc *, int, int, int, int, int, int); static void voodoofb_rectfill(struct voodoofb_softc *, int, int, int, int, int); static void voodoofb_rectinvert(struct voodoofb_softc *, int, int, int, int); static void voodoofb_setup_mono(struct voodoofb_softc *, int, int, int, int, uint32_t, uint32_t); static void voodoofb_feed_line(struct voodoofb_softc *, int, uint8_t *); static void voodoofb_wait_idle(struct voodoofb_softc *); static void voodoofb_init_glyphcache(struct voodoofb_softc *, struct rasops_info *); #ifdef VOODOOFB_ENABLE_INTR static int voodoofb_intr(void *); #endif static void voodoofb_set_videomode(struct voodoofb_softc *, const struct videomode *); struct wsscreen_descr voodoofb_defaultscreen = { "default", 0, 0, NULL, 8, 16, WSSCREEN_WSCOLORS | WSSCREEN_HILIT, NULL, }; const struct wsscreen_descr *_voodoofb_scrlist[] = { &voodoofb_defaultscreen, /* XXX other formats, graphics screen? */ }; struct wsscreen_list voodoofb_screenlist = { sizeof(_voodoofb_scrlist) / sizeof(struct wsscreen_descr *), _voodoofb_scrlist }; static int voodoofb_ioctl(void *, void *, u_long, void *, int, struct lwp *); static paddr_t voodoofb_mmap(void *, void *, off_t, int); static void voodoofb_clearscreen(struct voodoofb_softc *); static void voodoofb_init_screen(void *, struct vcons_screen *, int, long *); struct wsdisplay_accessops voodoofb_accessops = { voodoofb_ioctl, voodoofb_mmap, NULL, NULL, NULL, NULL, /* load_font */ NULL, /* polls */ NULL, /* scroll */ }; /* I2C glue */ static int voodoofb_i2c_send_start(void *, int); static int voodoofb_i2c_send_stop(void *, int); static int voodoofb_i2c_initiate_xfer(void *, i2c_addr_t, int); static int voodoofb_i2c_read_byte(void *, uint8_t *, int); static int voodoofb_i2c_write_byte(void *, uint8_t, int); /* I2C bitbang glue */ static void voodoofb_i2cbb_set_bits(void *, uint32_t); static void voodoofb_i2cbb_set_dir(void *, uint32_t); static uint32_t voodoofb_i2cbb_read(void *); static void voodoofb_setup_i2c(struct voodoofb_softc *); static const struct i2c_bitbang_ops voodoofb_i2cbb_ops = { voodoofb_i2cbb_set_bits, voodoofb_i2cbb_set_dir, voodoofb_i2cbb_read, { VSP_SDA0_IN, VSP_SCL0_IN, 0, 0 } }; extern const u_char rasops_cmap[768]; /* * Inline functions for getting access to register aperture. */ static inline void voodoo3_write32(struct voodoofb_softc *sc, uint32_t reg, uint32_t val) { bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, val); } static inline void voodoo3_write32s(struct voodoofb_softc *sc, uint32_t reg, uint32_t val) { bus_space_write_stream_4(sc->sc_regt, sc->sc_regh, reg, val); } static inline uint32_t voodoo3_read32(struct voodoofb_softc *sc, uint32_t reg) { return bus_space_read_4(sc->sc_regt, sc->sc_regh, reg); } static inline void voodoo3_write_crtc(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) { bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_INDEX - 0x300, reg); bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_DATA - 0x300, val); } static inline void voodoo3_write_seq(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) { bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_INDEX - 0x300, reg); bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_DATA - 0x300, val); } static inline void voodoo3_write_gra(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) { bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_INDEX - 0x300, reg); bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_DATA - 0x300, val); } static inline void voodoo3_write_attr(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) { uint8_t index; (void)bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, IS1_R - 0x300); index = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300); bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, reg); bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, val); bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, index); } static inline void vga_outb(struct voodoofb_softc *sc, uint32_t reg, uint8_t val) { bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, reg - 0x300, val); } /* wait until there's room for len bytes in the FIFO */ static inline void voodoo3_make_room(struct voodoofb_softc *sc, int len) { while ((voodoo3_read32(sc, STATUS) & 0x1f) < len); } static void voodoofb_wait_idle(struct voodoofb_softc *sc) { int i = 0; voodoo3_make_room(sc, 1); voodoo3_write32(sc, COMMAND_3D, COMMAND_3D_NOP); while (1) { i = (voodoo3_read32(sc, STATUS) & STATUS_BUSY) ? 0 : i + 1; if(i == 3) break; } } static int voodoofb_match(device_t parent, cfdata_t 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_3DFX) && (PCI_PRODUCT(pa->pa_id)>=PCI_PRODUCT_3DFX_VOODOO3)) return 100; if ((PCI_VENDOR(pa->pa_id)==PCI_VENDOR_3DFX) && (PCI_PRODUCT(pa->pa_id)>=PCI_PRODUCT_3DFX_BANSHEE)) return 100; return 0; } static void voodoofb_attach(device_t parent, device_t self, void *aux) { struct voodoofb_softc *sc = device_private(self); struct pci_attach_args *pa = aux; struct wsemuldisplaydev_attach_args aa; struct rasops_info *ri; #ifdef VOODOOFB_ENABLE_INTR pci_intr_handle_t ih; const char *intrstr; #endif ulong defattr; int console, width, height, i; prop_dictionary_t dict; int linebytes, depth, flags; uint32_t bg, fg, ul; sc->sc_dev = self; sc->sc_mode = WSDISPLAYIO_MODE_EMUL; sc->sc_pc = pa->pa_pc; sc->sc_pcitag = pa->pa_tag; sc->sc_dacw = -1; pci_aprint_devinfo(pa, NULL); sc->sc_memt = pa->pa_memt; sc->sc_iot = pa->pa_iot; sc->sc_pa = *pa; if (PCI_PRODUCT(pa->pa_id)>=PCI_PRODUCT_3DFX_BANSHEE) sc->sc_max_clock = MAX_CLOCK_VB; else sc->sc_max_clock = MAX_CLOCK_V3; /* the framebuffer */ if (pci_mapreg_info(sc->sc_pc, sc->sc_pcitag, 0x14, PCI_MAPREG_TYPE_MEM, &sc->sc_fb, &sc->sc_fbsize, &flags)) { aprint_error_dev(self, "failed to map the frame buffer.\n"); } sc->sc_memsize = sc->sc_fbsize >> 1; /* VRAM aperture is 2x VRAM */ /* memory-mapped registers */ if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM, 0, &sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) { aprint_error_dev(self, "failed to map memory-mapped registers.\n"); } /* IO-mapped registers */ if (pci_mapreg_map(pa, 0x18, PCI_MAPREG_TYPE_IO, 0, &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg, &sc->sc_ioregsize)) { aprint_error_dev(self, "failed to map IO-mapped registers.\n"); } sc->sc_is_mapped = TRUE; voodoofb_init(sc); /* we should read these from the chip instead of depending on OF */ width = height = -1; dict = device_properties(self); if (!prop_dictionary_get_uint32(dict, "width", &width)) { aprint_error_dev(self, "no width property\n"); return; } if (!prop_dictionary_get_uint32(dict, "height", &height)) { aprint_error_dev(self, "no height property\n"); return; } if (!prop_dictionary_get_uint32(dict, "depth", &depth)) { aprint_error_dev(self, "no depth property\n"); return; } linebytes = width; /* XXX */ if (width == -1 || height == -1) return; sc->sc_width = width; sc->sc_height = height; sc->sc_bits_per_pixel = depth; sc->sc_linebytes = linebytes; printf("%s: initial resolution %dx%d, %d bit\n", device_xname(self), sc->sc_width, sc->sc_height, sc->sc_bits_per_pixel); sc->sc_videomode = NULL; voodoofb_setup_i2c(sc); /* XXX this should at least be configurable via kernel config */ if (sc->sc_videomode == NULL) { sc->sc_videomode = pick_mode_by_ref(width, height, 60); } voodoofb_set_videomode(sc, sc->sc_videomode); sc->sc_font = NULL; vcons_init(&sc->vd, sc, &voodoofb_defaultscreen, &voodoofb_accessops); sc->vd.init_screen = voodoofb_init_screen; console = voodoofb_is_console(sc); ri = &voodoofb_console_screen.scr_ri; if (console) { vcons_init_screen(&sc->vd, &voodoofb_console_screen, 1, &defattr); voodoofb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; voodoofb_defaultscreen.textops = &ri->ri_ops; voodoofb_defaultscreen.capabilities = ri->ri_caps; voodoofb_defaultscreen.nrows = ri->ri_rows; voodoofb_defaultscreen.ncols = ri->ri_cols; wsdisplay_cnattach(&voodoofb_defaultscreen, ri, 0, 0, defattr); } else { if (voodoofb_console_screen.scr_ri.ri_rows == 0) { /* do some minimal setup to avoid weirdnesses later */ vcons_init_screen(&sc->vd, &voodoofb_console_screen, 1, &defattr); } else (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); } printf("%s: %d MB aperture at 0x%08x, %d MB registers at 0x%08x\n", device_xname(self), (u_int)(sc->sc_fbsize >> 20), (u_int)sc->sc_fb, (u_int)(sc->sc_regsize >> 20), (u_int)sc->sc_regs); #ifdef VOODOOFB_DEBUG printf("fb: %08lx\n", (ulong)ri->ri_bits); #endif if (sc->sc_bits_per_pixel == 8) { uint8_t tmp; for (i = 0; i < 256; i++) { tmp = i & 0xe0; /* * replicate bits so 0xe0 maps to a red value of 0xff * in order to make white look actually white */ tmp |= (tmp >> 3) | (tmp >> 6); sc->sc_cmap_red[i] = tmp; tmp = (i & 0x1c) << 3; tmp |= (tmp >> 3) | (tmp >> 6); sc->sc_cmap_green[i] = tmp; tmp = (i & 0x03) << 6; tmp |= tmp >> 2; tmp |= tmp >> 4; sc->sc_cmap_blue[i] = tmp; voodoofb_putpalreg(sc, i, sc->sc_cmap_red[i], sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); } } else { /* linear ramp */ for (i = 0; i < 256; i++) { sc->sc_cmap_red[i] = i; sc->sc_cmap_green[i] = i; sc->sc_cmap_blue[i] = i; voodoofb_putpalreg(sc, i, sc->sc_cmap_red[i], sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); } } #ifdef VOODOOFB_ENABLE_INTR char intrbuf[PCI_INTRSTR_LEN]; /* Interrupt. We don't use it for anything yet */ if (pci_intr_map(pa, &ih)) { aprint_error_dev(self, "failed to map interrupt\n"); return; } intrstr = pci_intr_string(sc->sc_pc, ih, intrbuf, sizeof(intrbuf)); sc->sc_ih = pci_intr_establish_xname(sc->sc_pc, ih, IPL_NET, voodoofb_intr, sc, device_xname(self)); if (sc->sc_ih == NULL) { aprint_error_dev(self, "failed to establish interrupt"); if (intrstr != NULL) aprint_error(" at %s", intrstr); aprint_error("\n"); return; } aprint_normal_dev(self, "interrupting at %s\n", intrstr); #endif rasops_unpack_attr(defattr, &fg, &bg, &ul); sc->sc_bg = ri->ri_devcmap[bg]; voodoofb_clearscreen(sc); if (console) vcons_replay_msgbuf(&voodoofb_console_screen); aa.console = console; aa.scrdata = &voodoofb_screenlist; aa.accessops = &voodoofb_accessops; aa.accesscookie = &sc->vd; config_found(self, &aa, wsemuldisplaydevprint, CFARGS(.iattr = "wsemuldisplaydev")); config_found(self, aux, voodoofb_drm_print, CFARGS(.iattr = "drm")); } static int voodoofb_drm_print(void *opaque, const char *pnp) { if (pnp) aprint_normal("drm at %s", pnp); return UNCONF; } static int voodoofb_drm_unmap(struct voodoofb_softc *sc) { if (!sc->sc_is_mapped) return 0; printf("%s: releasing bus resources\n", device_xname(sc->sc_dev)); bus_space_unmap(sc->sc_ioregt, sc->sc_ioregh, sc->sc_ioregsize); bus_space_unmap(sc->sc_regt, sc->sc_regh, sc->sc_regsize); sc->sc_is_mapped = FALSE; return 0; } static int voodoofb_drm_map(struct voodoofb_softc *sc) { if (sc->sc_is_mapped) return 0; /* memory-mapped registers */ if (pci_mapreg_map(&sc->sc_pa, 0x10, PCI_MAPREG_TYPE_MEM, 0, &sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) { aprint_error_dev(sc->sc_dev, "failed to map memory-mapped registers.\n"); } /* IO-mapped registers */ if (pci_mapreg_map(&sc->sc_pa, 0x18, PCI_MAPREG_TYPE_IO, 0, &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg, &sc->sc_ioregsize)) { aprint_error_dev(sc->sc_dev, "failed to map IO-mapped registers.\n"); } sc->sc_is_mapped = TRUE; voodoofb_init(sc); /* XXX this should at least be configurable via kernel config */ voodoofb_set_videomode(sc, sc->sc_videomode); return 0; } static int voodoofb_putpalreg(struct voodoofb_softc *sc, uint8_t index, uint8_t r, uint8_t g, uint8_t b) { uint32_t color; sc->sc_cmap_red[index] = r; sc->sc_cmap_green[index] = g; sc->sc_cmap_blue[index] = b; color = (r << 16) | (g << 8) | b; voodoo3_make_room(sc, 2); voodoo3_write32(sc, DACADDR, index); voodoo3_write32(sc, DACDATA, color); return 0; } static int voodoofb_putcmap(struct voodoofb_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 VOODOOFB_DEBUG printf("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++) { voodoofb_putpalreg(sc, index, *r, *g, *b); index++; r++, g++, b++; } return 0; } static int voodoofb_getcmap(struct voodoofb_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 bool voodoofb_is_console(struct voodoofb_softc *sc) { prop_dictionary_t dict; bool console = FALSE; dict = device_properties(sc->sc_dev); prop_dictionary_get_bool(dict, "is_console", &console); return console; } static void voodoofb_clearscreen(struct voodoofb_softc *sc) { voodoofb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height, sc->sc_bg); } /* * wsdisplay_emulops */ static void voodoofb_cursor(void *cookie, int on, int row, int col) { struct rasops_info *ri = cookie; struct vcons_screen *scr = ri->ri_hw; struct voodoofb_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) { voodoofb_rectinvert(sc, x, y, wi, he); 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; voodoofb_rectinvert(sc, x, y, wi, he); ri->ri_flg |= RI_CURSOR; } } else { ri->ri_flg &= ~RI_CURSOR; ri->ri_crow = row; ri->ri_ccol = col; } } #if 0 int voodoofb_mapchar(void *cookie, int uni, u_int *index) { return 0; } #endif static void voodoofb_putchar(void *cookie, int row, int col, u_int c, long attr) { struct rasops_info *ri = cookie; struct wsdisplay_font *font = PICK_FONT(ri, c); struct vcons_screen *scr = ri->ri_hw; struct voodoofb_softc *sc = scr->scr_cookie; if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { uint8_t *data; int fg, bg, uc, i; int x, y, wi, he; wi = font->fontwidth; he = font->fontheight; if (!CHAR_IN_FONT(c, 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) { voodoofb_rectfill(sc, x, y, wi, he, bg); } else { uc = c - font->firstchar; data = (uint8_t *)font->data + uc * ri->ri_fontscale; voodoofb_setup_mono(sc, x, y, wi, he, fg, bg); for (i = 0; i < he; i++) { voodoofb_feed_line(sc, font->stride, data); data += font->stride; } } } } static void voodoofb_putchar_aa(void *cookie, int row, int col, u_int c, long attr) { struct rasops_info *ri = cookie; struct wsdisplay_font *font = PICK_FONT(ri, c); struct vcons_screen *scr = ri->ri_hw; struct voodoofb_softc *sc = scr->scr_cookie; uint8_t *data; uint32_t bg, latch = 0, bg8, fg8, pixel, save_offset = 0; int i, x, y, wi, he, r, g, b, aval; int r1, g1, b1, r0, g0, b0, fgo, bgo, j; if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) return; if (!CHAR_IN_FONT(c, font)) return; wi = font->fontwidth; he = font->fontheight; bg = ri->ri_devcmap[(attr >> 16) & 0xf]; x = ri->ri_xorigin + col * wi; y = ri->ri_yorigin + row * he; if (c == 0x20) { voodoofb_rectfill(sc, x, y, wi, he, bg); return; } /* first, see if it's in the cache */ if ((attr == sc->sc_defattr) && (c < 256)) { uint32_t offset = sc->sc_glyphs_defattr[c]; if (offset != 0) { voodoo3_make_room(sc, 8); voodoo3_write32(sc, SRCBASE, offset); voodoo3_write32(sc, DSTBASE, 0); voodoo3_write32(sc, SRCFORMAT, sc->sc_fmt); voodoo3_write32(sc, DSTFORMAT, sc->sc_linebytes | FMT_8BIT); voodoo3_write32(sc, DSTSIZE, wi | (he << 16)); voodoo3_write32(sc, DSTXY, x | (y << 16)); voodoo3_write32(sc, SRCXY, 0); voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_S2S_BITBLT | (ROP_COPY << 24) | SST_2D_GO); return; } else { int slot = sc->sc_usedglyphs; sc->sc_usedglyphs++; save_offset = sc->sc_cache + (slot * ri->ri_fontscale); sc->sc_glyphs_defattr[c] = save_offset; } } data = WSFONT_GLYPH(c, font); voodoo3_make_room(sc, 7); voodoo3_write32(sc, DSTBASE, 0); voodoo3_write32(sc, SRCFORMAT, FMT_8BIT | FMT_PAD_BYTE); voodoo3_write32(sc, DSTFORMAT, sc->sc_linebytes | FMT_8BIT); voodoo3_write32(sc, DSTSIZE, wi | (he << 16)); voodoo3_write32(sc, DSTXY, x | (y << 16)); voodoo3_write32(sc, SRCXY, 0); voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_H2S_BITBLT | (ROP_COPY << 24) | SST_2D_GO); /* * we need the RGB colours here, so get offsets into rasops_cmap */ fgo = ((attr >> 24) & 0xf) * 3; bgo = ((attr >> 16) & 0xf) * 3; r0 = rasops_cmap[bgo]; r1 = rasops_cmap[fgo]; g0 = rasops_cmap[bgo + 1]; g1 = rasops_cmap[fgo + 1]; b0 = rasops_cmap[bgo + 2]; b1 = rasops_cmap[fgo + 2]; #define R3G3B2(r, g, b) ((r & 0xe0) | ((g >> 3) & 0x1c) | (b >> 6)) bg8 = R3G3B2(r0, g0, b0); fg8 = R3G3B2(r1, g1, b1); voodoo3_make_room(sc, 15); j = 15; for (i = 0; i < ri->ri_fontscale; i++) { aval = *data; if (aval == 0) { pixel = bg8; } else if (aval == 255) { pixel = fg8; } else { r = aval * r1 + (255 - aval) * r0; g = aval * g1 + (255 - aval) * g0; b = aval * b1 + (255 - aval) * b0; pixel = ((r & 0xe000) >> 8) | ((g & 0xe000) >> 11) | ((b & 0xc000) >> 14); } latch = (latch << 8) | pixel; /* write in 32bit chunks */ if ((i & 3) == 3) { voodoo3_write32s(sc, LAUNCH_2D, latch); /* * not strictly necessary, old data should be shifted * out */ latch = 0; /* * check for pipeline space every now and then * I don't think we can feed a Voodoo3 faster than it * can process simple pixel data but I have been wrong * about that before */ j--; if (j == 0) { voodoo3_make_room(sc, 15); j = 15; } } data++; } /* if we have pixels left in latch write them out */ if ((i & 3) != 0) { latch = latch << ((4 - (i & 3)) << 3); voodoo3_write32s(sc, LAUNCH_2D, latch); } if (save_offset != 0) { /* save the glyph we just drew */ voodoo3_make_room(sc, 8); voodoo3_write32(sc, SRCBASE, 0); voodoo3_write32(sc, DSTBASE, save_offset); voodoo3_write32(sc, SRCFORMAT, sc->sc_linebytes | FMT_8BIT); voodoo3_write32(sc, DSTFORMAT, sc->sc_fmt); voodoo3_write32(sc, DSTSIZE, wi | (he << 16)); voodoo3_write32(sc, DSTXY, 0); voodoo3_write32(sc, SRCXY, x | (y << 16)); voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_S2S_BITBLT | (ROP_COPY << 24) | SST_2D_GO); } } static void voodoofb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) { struct rasops_info *ri = cookie; struct vcons_screen *scr = ri->ri_hw; struct voodoofb_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; voodoofb_bitblt(sc, xs, y, xd, y, width, height); } } static void voodoofb_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr) { struct rasops_info *ri = cookie; struct vcons_screen *scr = ri->ri_hw; struct voodoofb_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); voodoofb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); } } static void voodoofb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) { struct rasops_info *ri = cookie; struct vcons_screen *scr = ri->ri_hw; struct voodoofb_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; voodoofb_bitblt(sc, x, ys, x, yd, width, height); } } static void voodoofb_eraserows(void *cookie, int row, int nrows, long fillattr) { struct rasops_info *ri = cookie; struct vcons_screen *scr = ri->ri_hw; struct voodoofb_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 */ voodoofb_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; voodoofb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); } } } static void voodoofb_bitblt(struct voodoofb_softc *sc, int xs, int ys, int xd, int yd, int width, int height) { uint32_t fmt, blitcmd; fmt = sc->sc_linebytes | ((sc->sc_bits_per_pixel + ((sc->sc_bits_per_pixel == 8) ? 0 : 8)) << 13); blitcmd = COMMAND_2D_S2S_BITBLT | (ROP_COPY << 24); if (xs <= xd) { blitcmd |= BIT(14); xs += (width - 1); xd += (width - 1); } if (ys <= yd) { blitcmd |= BIT(15); ys += (height - 1); yd += (height - 1); } voodoo3_make_room(sc, 8); voodoo3_write32(sc, SRCBASE, 0); voodoo3_write32(sc, DSTBASE, 0); voodoo3_write32(sc, SRCFORMAT, fmt); voodoo3_write32(sc, DSTFORMAT, fmt); voodoo3_write32(sc, DSTSIZE, width | (height << 16)); voodoo3_write32(sc, DSTXY, xd | (yd << 16)); voodoo3_write32(sc, SRCXY, xs | (ys << 16)); voodoo3_write32(sc, COMMAND_2D, blitcmd | SST_2D_GO); } static void voodoofb_rectfill(struct voodoofb_softc *sc, int x, int y, int width, int height, int colour) { uint32_t fmt; fmt = sc->sc_linebytes | ((sc->sc_bits_per_pixel + ((sc->sc_bits_per_pixel == 8) ? 0 : 8)) << 13); voodoo3_make_room(sc, 7); voodoo3_write32(sc, DSTFORMAT, fmt); voodoo3_write32(sc, DSTBASE, 0); voodoo3_write32(sc, COLORFORE, colour); voodoo3_write32(sc, COLORBACK, colour); voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | (ROP_COPY << 24)); voodoo3_write32(sc, DSTSIZE, width | (height << 16)); voodoo3_write32(sc, LAUNCH_2D, x | (y << 16)); } static void voodoofb_rectinvert(struct voodoofb_softc *sc, int x, int y, int width, int height) { uint32_t fmt; fmt = sc->sc_linebytes | ((sc->sc_bits_per_pixel + ((sc->sc_bits_per_pixel == 8) ? 0 : 8)) << 13); voodoo3_make_room(sc, 8); voodoo3_write32(sc, SRCBASE, 0); voodoo3_write32(sc, DSTBASE, 0); voodoo3_write32(sc, DSTFORMAT, fmt); voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | (ROP_INVERT << 24)); voodoo3_write32(sc, DSTSIZE, width | (height << 16)); voodoo3_write32(sc, DSTXY, x | (y << 16)); voodoo3_write32(sc, LAUNCH_2D, x | (y << 16)); } static void voodoofb_setup_mono(struct voodoofb_softc *sc, int xd, int yd, int width, int height, uint32_t fg, uint32_t bg) { uint32_t dfmt, sfmt = sc->sc_linebytes; dfmt = sc->sc_linebytes | ((sc->sc_bits_per_pixel + ((sc->sc_bits_per_pixel == 8) ? 0 : 8)) << 13); voodoo3_make_room(sc, 10); voodoo3_write32(sc, SRCFORMAT, sfmt); voodoo3_write32(sc, DSTFORMAT, dfmt); voodoo3_write32(sc, DSTBASE, 0); voodoo3_write32(sc, COLORFORE, fg); voodoo3_write32(sc, COLORBACK, bg); voodoo3_write32(sc, DSTSIZE, width | (height << 16)); voodoo3_write32(sc, DSTXY, xd | (yd << 16)); voodoo3_write32(sc, SRCXY, 0); voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_H2S_BITBLT | (ROP_COPY << 24) | SST_2D_GO); /* now feed the data into the chip */ } static void voodoofb_feed_line(struct voodoofb_softc *sc, int count, uint8_t *data) { int i; uint32_t latch = 0, bork; int shift = 0; voodoo3_make_room(sc, count); for (i = 0; i < count; i++) { bork = data[i]; latch |= (bork << shift); if (shift == 24) { voodoo3_write32(sc, LAUNCH_2D, latch); latch = 0; shift = 0; } else shift += 8; } if (shift != 24) voodoo3_write32(sc, LAUNCH_2D, latch); } #if 0 static int voodoofb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) { return 0; } #endif /* * wsdisplay_accessops */ static int voodoofb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l) { struct vcons_data *vd = v; struct voodoofb_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 voodoofb_getcmap(sc, (struct wsdisplay_cmap *)data); case WSDISPLAYIO_PUTCMAP: return voodoofb_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_GET_BUSID: return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc, sc->sc_pcitag, data); 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) { voodoofb_drm_map(sc); int i; /* restore the palette */ for (i = 0; i < 256; i++) { voodoofb_putpalreg(sc, i, sc->sc_cmap_red[i], sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); } /* zap the glyph cache */ for (i = 0; i < 256; i++) { sc->sc_glyphs_defattr[i] = 0; sc->sc_glyphs_kernattr[i] = 0; } sc->sc_usedglyphs = 0; voodoofb_clearscreen(sc); vcons_redraw_screen(ms); } else { voodoofb_drm_unmap(sc); } } } return 0; /* XXX WSDISPLAYIO_GET_EDID */ case WSDISPLAYIO_GET_FBINFO: { struct wsdisplayio_fbinfo *fbi = data; return wsdisplayio_get_fbinfo(&ms->scr_ri, fbi); } } return EPASSTHROUGH; } static paddr_t voodoofb_mmap(void *v, void *vs, off_t offset, int prot) { struct vcons_data *vd = v; struct voodoofb_softc *sc = vd->cookie; paddr_t pa; /* 'regular' framebuffer mmap()ing */ if (sc->sc_mode == WSDISPLAYIO_MODE_DUMBFB) { if (offset < sc->sc_fbsize) { pa = bus_space_mmap(sc->sc_memt, sc->sc_fb, offset, prot, BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE); return pa; } } else if (sc->sc_mode == WSDISPLAYIO_MODE_MAPPED) { if (kauth_authorize_machdep(kauth_cred_get(), KAUTH_MACHDEP_UNMANAGEDMEM, NULL, NULL, NULL, NULL) != 0) { aprint_error_dev(sc->sc_dev, "mmap() rejected.\n"); return -1; } if ((offset >= 0xa0000) && (offset < 0xb0000)) { pa = bus_space_mmap(sc->sc_memt, sc->sc_fb, offset - 0xa0000, prot, BUS_SPACE_MAP_LINEAR); return pa; } 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 | BUS_SPACE_MAP_PREFETCHABLE); return pa; } if ((offset >= sc->sc_regs) && (offset < (sc->sc_regs + sc->sc_regsize))) { 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, 0); 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 voodoofb_init_screen(void *cookie, struct vcons_screen *scr, int existing, long *defattr) { struct voodoofb_softc *sc = cookie; struct rasops_info *ri = &scr->scr_ri; ri->ri_depth = sc->sc_bits_per_pixel; ri->ri_width = sc->sc_width; ri->ri_height = sc->sc_height; ri->ri_stride = sc->sc_linebytes; ri->ri_flg = RI_CENTER | RI_8BIT_IS_RGB | RI_ENABLE_ALPHA; rasops_init(ri, 0, 0); ri->ri_caps = WSSCREEN_WSCOLORS; rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, sc->sc_width / ri->ri_font->fontwidth); ri->ri_hw = scr; ri->ri_ops.copyrows = voodoofb_copyrows; ri->ri_ops.copycols = voodoofb_copycols; ri->ri_ops.eraserows = voodoofb_eraserows; ri->ri_ops.erasecols = voodoofb_erasecols; ri->ri_ops.cursor = voodoofb_cursor; if (FONT_IS_ALPHA(ri->ri_font)) { ri->ri_ops.putchar = voodoofb_putchar_aa; ri->ri_ops.allocattr(ri, WS_DEFAULT_FG, WS_DEFAULT_BG, 0, &sc->sc_defattr); sc->sc_kernattr = (WS_KERNEL_FG << 24) | (WS_KERNEL_BG << 16); voodoofb_init_glyphcache(sc, ri); } else { ri->ri_ops.putchar = voodoofb_putchar; } } #if 0 int voodoofb_load_font(void *v, void *cookie, struct wsdisplay_font *data) { return 0; } #endif #ifdef VOODOOFB_ENABLE_INTR static int voodoofb_intr(void *arg) { struct voodoofb_softc *sc = arg; voodoo3_write32(sc, V3_STATUS, 0); /* clear interrupts */ return 1; } #endif /* video mode stuff */ #define REFFREQ 14318 /* .18 */ #define ABS(a) ((a < 0) ? -a : a) static int voodoofb_calc_pll(int freq, int *f_out, int isBanshee) { int m, n, k, best_m, best_n, best_k, f_cur, best_error; int minm, maxm; best_error = freq; best_n = best_m = best_k = 0; if (isBanshee) { minm = 24; maxm = 24; } else { minm = 1; maxm = 57; /* This used to be 64, alas it seems the last 8 (funny that ?) * values cause jittering at lower resolutions. I've not done * any calculations to what the adjustment affects clock ranges, * but I can still run at 1600x1200@75Hz */ } for (n = 1; n < 256; n++) { f_cur = REFFREQ * (n + 2); if (f_cur < freq) { f_cur = f_cur / 3; if (freq - f_cur < best_error) { best_error = freq - f_cur; best_n = n; best_m = 1; best_k = 0; continue; } } for (m = minm; m < maxm; m++) { for (k = 0; k < 4; k++) { f_cur = REFFREQ * (n + 2) / (m + 2) / (1 << k); if (ABS(f_cur - freq) < best_error) { best_error = ABS(f_cur - freq); best_n = n; best_m = m; best_k = k; } } } } n = best_n; m = best_m; k = best_k; *f_out = REFFREQ * (n + 2) / (m + 2) / (1 << k); return ( n << 8) | (m << 2) | k; } static void voodoofb_setup_monitor(struct voodoofb_softc *sc, const struct videomode *vm) { struct voodoo_regs mod; struct voodoo_regs *mode; uint32_t horizontal_display_end, horizontal_sync_start, horizontal_sync_end, horizontal_total, horizontal_blanking_start, horizontal_blanking_end; uint32_t vertical_display_enable_end, vertical_sync_start, vertical_sync_end, vertical_total, vertical_blanking_start, vertical_blanking_end; uint32_t wd; // CRTC offset int i; uint8_t misc; memset(&mod, 0, sizeof(mod)); mode = &mod; wd = (vm->hdisplay >> 3) - 1; horizontal_display_end = (vm->hdisplay >> 3) - 1; horizontal_sync_start = (vm->hsync_start >> 3) - 1; horizontal_sync_end = (vm->hsync_end >> 3) - 1; horizontal_total = (vm->htotal >> 3) - 1; horizontal_blanking_start = horizontal_display_end; horizontal_blanking_end = horizontal_total; vertical_display_enable_end = vm->vdisplay - 1; vertical_sync_start = vm->vsync_start; // - 1; vertical_sync_end = vm->vsync_end; // - 1; vertical_total = vm->vtotal - 2; vertical_blanking_start = vertical_display_enable_end; vertical_blanking_end = vertical_total; #if 0 misc = 0x0f | (vm->hdisplay < 400 ? 0xa0 : vm->hdisplay < 480 ? 0x60 : vm->hdisplay < 768 ? 0xe0 : 0x20); #else misc = 0x2f; if (vm->flags & VID_NHSYNC) misc |= HSYNC_NEG; if (vm->flags & VID_NVSYNC) misc |= VSYNC_NEG; #ifdef VOODOOFB_DEBUG printf("misc: %02x\n", misc); #endif #endif mode->vr_seq[0] = 3; mode->vr_seq[1] = 1; mode->vr_seq[2] = 8; mode->vr_seq[3] = 0; mode->vr_seq[4] = 6; /* crtc regs start */ mode->vr_crtc[0] = horizontal_total - 4; mode->vr_crtc[1] = horizontal_display_end; mode->vr_crtc[2] = horizontal_blanking_start; mode->vr_crtc[3] = 0x80 | (horizontal_blanking_end & 0x1f); mode->vr_crtc[4] = horizontal_sync_start; mode->vr_crtc[5] = ((horizontal_blanking_end & 0x20) << 2) | (horizontal_sync_end & 0x1f); mode->vr_crtc[6] = vertical_total; mode->vr_crtc[7] = ((vertical_sync_start & 0x200) >> 2) | ((vertical_display_enable_end & 0x200) >> 3) | ((vertical_total & 0x200) >> 4) | 0x10 | ((vertical_blanking_start & 0x100) >> 5) | ((vertical_sync_start & 0x100) >> 6) | ((vertical_display_enable_end & 0x100) >> 7) | ((vertical_total & 0x100) >> 8); mode->vr_crtc[8] = 0; mode->vr_crtc[9] = 0x40 | ((vertical_blanking_start & 0x200) >> 4); mode->vr_crtc[10] = 0; mode->vr_crtc[11] = 0; mode->vr_crtc[12] = 0; mode->vr_crtc[13] = 0; mode->vr_crtc[14] = 0; mode->vr_crtc[15] = 0; mode->vr_crtc[16] = vertical_sync_start; mode->vr_crtc[17] = (vertical_sync_end & 0x0f) | 0x20; mode->vr_crtc[18] = vertical_display_enable_end; mode->vr_crtc[19] = wd; // CRTC offset mode->vr_crtc[20] = 0; mode->vr_crtc[21] = vertical_blanking_start; mode->vr_crtc[22] = vertical_blanking_end + 1; mode->vr_crtc[23] = 128; mode->vr_crtc[24] = 255; /* overflow registers */ mode->vr_crtc[CRTC_HDISP_EXT] = (horizontal_total&0x100) >> 8 | (horizontal_display_end & 0x100) >> 6 | (horizontal_blanking_start & 0x100) >> 4 | (horizontal_blanking_end & 0x40) >> 1 | (horizontal_sync_start & 0x100) >> 2 | (horizontal_sync_end & 0x20) << 2; mode->vr_crtc[CRTC_VDISP_EXT] = (vertical_total & 0x400) >> 10 | (vertical_display_enable_end & 0x400) >> 8 | /* the manual is contradictory here */ (vertical_blanking_start & 0x400) >> 6 | (vertical_blanking_end & 0x400) >> 4; /* attr regs start */ mode->vr_attr[0] = 0; mode->vr_attr[1] = 0; mode->vr_attr[2] = 0; mode->vr_attr[3] = 0; mode->vr_attr[4] = 0; mode->vr_attr[5] = 0; mode->vr_attr[6] = 0; mode->vr_attr[7] = 0; mode->vr_attr[8] = 0; mode->vr_attr[9] = 0; mode->vr_attr[10] = 0; mode->vr_attr[11] = 0; mode->vr_attr[12] = 0; mode->vr_attr[13] = 0; mode->vr_attr[14] = 0; mode->vr_attr[15] = 0; mode->vr_attr[16] = 1; mode->vr_attr[17] = 0; mode->vr_attr[18] = 15; mode->vr_attr[19] = 0; /* attr regs end */ /* graph regs start */ mode->vr_graph[0] = 159; mode->vr_graph[1] = 127; mode->vr_graph[2] = 127; mode->vr_graph[3] = 131; mode->vr_graph[4] = 130; mode->vr_graph[5] = 142; mode->vr_graph[6] = 30; mode->vr_graph[7] = 245; mode->vr_graph[8] = 0; vga_outb(sc, MISC_W, misc | 0x01); for(i = 0; i < 5; i++) voodoo3_write_seq(sc, i, mode->vr_seq[i]); for (i = 0; i < CRTC_PCI_READBACK; i ++) voodoo3_write_crtc(sc, i, mode->vr_crtc[i]); for (i = 0; i < 0x14; i ++) voodoo3_write_attr(sc, i, mode->vr_attr[i]); for (i = 0; i < 0x09; i ++) voodoo3_write_gra(sc, i, mode->vr_graph[i]); } static void voodoofb_set_videomode(struct voodoofb_softc *sc, const struct videomode *vm) { uint32_t miscinit0 = 0; int vidpll, fout; uint32_t vidproc = VIDPROCDEFAULT; uint32_t bpp = 1; /* for now */ uint32_t bytes_per_row = vm->hdisplay * bpp; sc->sc_bits_per_pixel = bpp << 3; sc->sc_width = vm->hdisplay; sc->sc_height = vm->vdisplay; sc->sc_linebytes = bytes_per_row; voodoofb_setup_monitor(sc, vm); vidproc &= ~(0x1c0000); /* clear bits 18 to 20, bpp in vidproccfg */ /* enable bits 18 to 20 to the required bpp */ vidproc |= ((bpp - 1) << VIDCFG_PIXFMT_SHIFT); vidpll = voodoofb_calc_pll(vm->dot_clock, &fout, 0); #ifdef VOODOOFB_DEBUG uint32_t vp; vp = voodoo3_read32(sc, VIDPROCCFG); printf("old vidproc: %08x\n", vp); printf("pll: %08x %d\n", vidpll, fout); #endif /* bit 10 of vidproccfg, is enabled or disabled as needed */ switch (bpp) { case 1: /* * bit 10 off for palettized modes only, off means * palette is used */ vidproc &= ~(1 << 10); break; #if 0 case 2: #if __POWERPC__ miscinit0 = 0xc0000000; #endif /* bypass palette for 16bit modes */ vidproc |= (1 << 10); break; case 4: #if __POWERPC__ miscinit0 = 0x40000000; #endif vidproc |= (1 << 10); /* Same for 32bit modes */ break; #endif default: printf("We support only 8 bit for now\n"); return; } voodoofb_wait_idle(sc); voodoo3_write32(sc, MISCINIT1, voodoo3_read32(sc, MISCINIT1) | 0x01); voodoo3_make_room(sc, 4); voodoo3_write32(sc, VGAINIT0, 4928); voodoo3_write32(sc, DACMODE, 0); voodoo3_write32(sc, VIDDESKSTRIDE, bytes_per_row); voodoo3_write32(sc, PLLCTRL0, vidpll); voodoo3_make_room(sc, 5); voodoo3_write32(sc, VIDSCREENSIZE, sc->sc_width | (sc->sc_height << 12)); voodoo3_write32(sc, VIDDESKSTART, 0); vidproc &= ~VIDCFG_HWCURSOR_ENABLE; voodoo3_write32(sc, VIDPROCCFG, vidproc); voodoo3_write32(sc, VGAINIT1, 0); voodoo3_write32(sc, MISCINIT0, miscinit0); #ifdef VOODOOFB_DEBUG printf("vidproc: %08x\n", vidproc); #endif voodoo3_make_room(sc, 8); voodoo3_write32(sc, SRCBASE, 0); voodoo3_write32(sc, DSTBASE, 0); voodoo3_write32(sc, COMMANDEXTRA_2D, 0); voodoo3_write32(sc, CLIP0MIN, 0); voodoo3_write32(sc, CLIP0MAX, 0x0fff0fff); voodoo3_write32(sc, CLIP1MIN, 0); voodoo3_write32(sc, CLIP1MAX, 0x0fff0fff); voodoo3_write32(sc, SRCXY, 0); voodoofb_wait_idle(sc); printf("%s: switched to %dx%d, %d bit\n", device_xname(sc->sc_dev), sc->sc_width, sc->sc_height, sc->sc_bits_per_pixel); sc->sc_numglyphs = 0; /* invalidate the glyph cache */ } static void voodoofb_init(struct voodoofb_softc *sc) { /* XXX */ uint32_t vgainit0 = 0; uint32_t vidcfg = 0; #ifdef VOODOOFB_DEBUG printf("initializing engine..."); #endif vgainit0 = voodoo3_read32(sc, VGAINIT0); #ifdef VOODOOFB_DEBUG printf("vga: %08x", vgainit0); #endif vgainit0 |= VGAINIT0_8BIT_DAC | VGAINIT0_EXT_ENABLE | VGAINIT0_WAKEUP_3C3 | VGAINIT0_ALT_READBACK | VGAINIT0_EXTSHIFTOUT; vidcfg = voodoo3_read32(sc, VIDPROCCFG); #ifdef VOODOOFB_DEBUG printf(" vidcfg: %08x\n", vidcfg); #endif vidcfg |= VIDCFG_VIDPROC_ENABLE | VIDCFG_DESK_ENABLE; vidcfg &= ~VIDCFG_HWCURSOR_ENABLE; voodoo3_make_room(sc, 2); voodoo3_write32(sc, VGAINIT0, vgainit0); voodoo3_write32(sc, VIDPROCCFG, vidcfg); voodoo3_make_room(sc, 8); voodoo3_write32(sc, SRCBASE, 0); voodoo3_write32(sc, DSTBASE, 0); voodoo3_write32(sc, COMMANDEXTRA_2D, 0); voodoo3_write32(sc, CLIP0MIN, 0); voodoo3_write32(sc, CLIP0MAX, 0x1fff1fff); voodoo3_write32(sc, CLIP1MIN, 0); voodoo3_write32(sc, CLIP1MAX, 0x1fff1fff); voodoo3_write32(sc, SRCXY, 0); voodoofb_wait_idle(sc); } #define MAX_HRES 1700 /* * XXX in theory we can go higher but I * couldn't get anything above 1680 x 1200 * to work, so until I find out why, it's * disabled so people won't end up with a * blank screen */ #define MODE_IS_VALID(m, mclk) (((m)->dot_clock <= (mclk)) && \ ((m)->hdisplay < MAX_HRES)) static void voodoofb_setup_i2c(struct voodoofb_softc *sc) { int i; /* Fill in the i2c tag */ iic_tag_init(&sc->sc_i2c); sc->sc_i2c.ic_cookie = sc; sc->sc_i2c.ic_send_start = voodoofb_i2c_send_start; sc->sc_i2c.ic_send_stop = voodoofb_i2c_send_stop; sc->sc_i2c.ic_initiate_xfer = voodoofb_i2c_initiate_xfer; sc->sc_i2c.ic_read_byte = voodoofb_i2c_read_byte; sc->sc_i2c.ic_write_byte = voodoofb_i2c_write_byte; sc->sc_i2creg = voodoo3_read32(sc, VIDSERPARPORT); #ifdef VOODOOFB_DEBUG printf("data: %08x\n", sc->sc_i2creg); #endif sc->sc_i2creg |= VSP_ENABLE_IIC0; sc->sc_i2creg &= ~(VSP_SDA0_OUT | VSP_SCL0_OUT); voodoo3_write32(sc, VIDSERPARPORT, sc->sc_i2creg); /* zero out the EDID buffer */ memset(sc->sc_edid_data, 0, 128); /* Some monitors don't respond first time */ i = 0; while (sc->sc_edid_data[1] == 0 && i++ < 3) ddc_read_edid(&sc->sc_i2c, sc->sc_edid_data, 128); if (i < 3) { if (edid_parse(sc->sc_edid_data, &sc->sc_edid_info) != -1) { #ifdef VOODOOFB_DEBUG edid_print(&sc->sc_edid_info); #endif /* * Now pick a mode. * How do we know our max. pixel clock? * All Voodoo3 should support at least 250MHz. * All Voodoo3 I've seen so far have at least 8MB * which we're not going to exhaust either in 8bit. */ if ((sc->sc_edid_info.edid_preferred_mode != NULL)) { struct videomode *m = sc->sc_edid_info.edid_preferred_mode; if (MODE_IS_VALID(m, sc->sc_max_clock)) { sc->sc_videomode = m; } else { aprint_error_dev(sc->sc_dev, "unable to use preferred mode\n"); } } /* * if we can't use the preferred mode go look for the * best one we can support */ if (sc->sc_videomode == NULL) { int n = 0; struct videomode *m = sc->sc_edid_info.edid_modes; sort_modes(sc->sc_edid_info.edid_modes, &sc->sc_edid_info.edid_preferred_mode, sc->sc_edid_info.edid_nmodes); while ((sc->sc_videomode == NULL) && (n < sc->sc_edid_info.edid_nmodes)) { if (MODE_IS_VALID(&m[n], sc->sc_max_clock)) { sc->sc_videomode = &m[n]; } n++; } } } } } /* I2C bitbanging */ static void voodoofb_i2cbb_set_bits(void *cookie, uint32_t bits) { struct voodoofb_softc *sc = cookie; uint32_t out; out = bits >> 2; /* bitmasks match the IN bits */ voodoo3_write32(sc, VIDSERPARPORT, sc->sc_i2creg | out); } static void voodoofb_i2cbb_set_dir(void *cookie, uint32_t dir) { /* Nothing to do */ } static uint32_t voodoofb_i2cbb_read(void *cookie) { struct voodoofb_softc *sc = cookie; uint32_t bits; bits = voodoo3_read32(sc, VIDSERPARPORT); return bits; } /* higher level I2C stuff */ static int voodoofb_i2c_send_start(void *cookie, int flags) { return (i2c_bitbang_send_start(cookie, flags, &voodoofb_i2cbb_ops)); } static int voodoofb_i2c_send_stop(void *cookie, int flags) { return (i2c_bitbang_send_stop(cookie, flags, &voodoofb_i2cbb_ops)); } static int voodoofb_i2c_initiate_xfer(void *cookie, i2c_addr_t addr, int flags) { return (i2c_bitbang_initiate_xfer(cookie, addr, flags, &voodoofb_i2cbb_ops)); } static int voodoofb_i2c_read_byte(void *cookie, uint8_t *valp, int flags) { return (i2c_bitbang_read_byte(cookie, valp, flags, &voodoofb_i2cbb_ops)); } static int voodoofb_i2c_write_byte(void *cookie, uint8_t val, int flags) { return (i2c_bitbang_write_byte(cookie, val, flags, &voodoofb_i2cbb_ops)); } /* glyph cache */ static void voodoofb_init_glyphcache(struct voodoofb_softc *sc, struct rasops_info *ri) { int bufsize, i; if (sc->sc_numglyphs != 0) { /* re-initialize */ if (ri->ri_font == sc->sc_font) { /* nothing to do, keep using the same cache */ return; } } sc->sc_cache = (ri->ri_width * ri->ri_stride + 3) & 0xfffffffc; bufsize = sc->sc_memsize - sc->sc_cache; sc->sc_numglyphs = bufsize / ri->ri_fontscale; sc->sc_usedglyphs = 0; for (i = 0; i < 256; i++) { sc->sc_glyphs_kernattr[i] = 0; sc->sc_glyphs_defattr[i] = 0; } sc->sc_fmt = ri->ri_font->fontwidth | FMT_8BIT; }