/* * Copyright (c) 1999 FreeBSD(98) port team. * 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 as * the first lines of this file unmodified. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD$ */ #include "gdc.h" #include "opt_gdc.h" #include "opt_fb.h" #include "opt_syscons.h" #if NGDC > 0 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define TEXT_GDC IO_GDC1 /* 0x60 */ #define ROW 25 #define COL 80 #define DRIVER_NAME "gdc" /* cdev driver declaration */ #define GDC_UNIT(dev) minor(dev) #define GDC_MKMINOR(unit) (unit) typedef struct gdc_softc { video_adapter_t *adp; } gdc_softc_t; #define GDC_SOFTC(unit) \ ((gdc_softc_t *)devclass_get_softc(gdc_devclass, unit)) static devclass_t gdc_devclass; static int gdcprobe(device_t dev); static int gdc_attach(device_t dev); static device_method_t gdc_methods[] = { DEVMETHOD(device_probe, gdcprobe), DEVMETHOD(device_attach, gdc_attach), { 0, 0 } }; static driver_t gdcdriver = { DRIVER_NAME, gdc_methods, sizeof(gdc_softc_t), }; DRIVER_MODULE(gdc, isa, gdcdriver, gdc_devclass, 0, 0); static int gdc_probe_unit(int unit, gdc_softc_t *sc, int flags); static int gdc_attach_unit(int unit, gdc_softc_t *sc, int flags); #if FB_INSTALL_CDEV static d_open_t gdcopen; static d_close_t gdcclose; static d_read_t gdcread; static d_write_t gdcwrite; static d_ioctl_t gdcioctl; static d_mmap_t gdcmmap; static struct cdevsw vga_cdevsw = { /* open */ gdcopen, /* close */ gdcclose, /* read */ gdcread, /* write */ gdcwrite, /* ioctl */ gdcioctl, /* stop */ nostop, /* reset */ noreset, /* devtotty */ nodevtotty, /* poll */ nopoll, /* mmap */ nommap, /* strategy */ nostrategy, /* name */ DRIVER_NAME, /* parms */ noparms, /* maj */ -1, /* dump */ nodump, /* psize */ nopsize, /* flags */ 0, /* maxio */ 0, /* bmaj */ -1 }; #endif /* FB_INSTALL_CDEV */ static int gdcprobe(device_t dev) { gdc_softc_t *sc; device_set_desc(dev, "Generic GDC"); sc = device_get_softc(dev); return gdc_probe_unit(device_get_unit(dev), sc, isa_get_flags(dev)); } static int gdc_attach(device_t dev) { gdc_softc_t *sc; int error; sc = device_get_softc(dev); error = gdc_attach_unit(device_get_unit(dev), sc, isa_get_flags(dev)); if (error) return error; #ifdef FB_INSTALL_CDEV /* attach a virtual frame buffer device */ error = fb_attach(makedev(0, GDC_MKMINOR(unit)), sc->adp, &gdc_cdevsw); if (error) return error; #endif /* FB_INSTALL_CDEV */ if (bootverbose) (*vidsw[sc->adp->va_index]->diag)(sc->adp, bootverbose); return 0; } static int gdc_probe_unit(int unit, gdc_softc_t *sc, int flags) { video_switch_t *sw; bzero(sc, sizeof(*sc)); sw = vid_get_switch(DRIVER_NAME); if (sw == NULL) return ENXIO; return (*sw->probe)(unit, &sc->adp, NULL, flags); } static int gdc_attach_unit(int unit, gdc_softc_t *sc, int flags) { video_switch_t *sw; sw = vid_get_switch(DRIVER_NAME); if (sw == NULL) return ENXIO; return (*sw->init)(unit, sc->adp, flags); } /* cdev driver functions */ #ifdef FB_INSTALL_CDEV static int gdcopen(dev_t dev, int flag, int mode, struct proc *p) { gdc_softc_t *sc; sc = GDC_SOFTC(GDC_UNIT(dev)); if (sc == NULL) return ENXIO; if (mode & (O_CREAT | O_APPEND | O_TRUNC)) return ENODEV; return genfbopen(&sc->gensc, sc->adp, flag, mode, p); } static int gdcclose(dev_t dev, int flag, int mode, struct proc *p) { gdc_softc_t *sc; sc = GDC_SOFTC(GDC_UNIT(dev)); return genfbclose(&sc->gensc, sc->adp, flag, mode, p); } static int gdcread(dev_t dev, struct uio *uio, int flag) { gdc_softc_t *sc; sc = GDC_SOFTC(GDC_UNIT(dev)); return genfbread(&sc->gensc, sc->adp, uio, flag); } static int gdcwrite(dev_t dev, struct uio *uio, int flag) { gdc_softc_t *sc; sc = GDC_SOFTC(GDC_UNIT(dev)); return genfbread(&sc->gensc, sc->adp, uio, flag); } static int gdcioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p) { gdc_softc_t *sc; sc = GDC_SOFTC(GDC_UNIT(dev)); return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, p); } static int gdcmmap(dev_t dev, vm_offset_t offset, int prot) { gdc_softc_t *sc; sc = GDC_SOFTC(GDC_UNIT(dev)); return genfbmmap(&sc->gensc, sc->adp, offset, prot); } #endif /* FB_INSTALL_CDEV */ /* LOW-LEVEL */ #include #include #define TEXT_BUF_BASE 0x000a0000 #define TEXT_BUF_SIZE 0x00008000 #define GRAPHICS_BUF_BASE 0x000a8000 #define GRAPHICS_BUF_SIZE 0x00040000 #define VIDEO_BUF_BASE 0x000a0000 #define VIDEO_BUF_SIZE 0x00048000 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) /* * NOTE: `va_window' should have a virtual address, but is initialized * with a physical address in the following table, they will be * converted at run-time. */ static video_adapter_t adapter_init_value[] = { { 0, KD_PC98, "gdc", /* va_type, va_name */ 0, 0, /* va_unit, va_minor */ V_ADP_COLOR | V_ADP_MODECHANGE | V_ADP_BORDER, IO_GDC1, 16, TEXT_GDC, /* va_io*, XXX */ VIDEO_BUF_BASE, VIDEO_BUF_SIZE, /* va_mem* */ TEXT_BUF_BASE, TEXT_BUF_SIZE, TEXT_BUF_SIZE, 0, /* va_window* */ 0, 0, /* va_buffer, va_buffer_size */ 0, M_PC98_80x25, 0, /* va_*mode* */ }, }; static video_adapter_t biosadapter[1]; /* video driver declarations */ static int gdc_configure(int flags); static int gdc_nop(void); static int gdc_err(video_adapter_t *adp, ...); static vi_probe_t gdc_probe; static vi_init_t gdc_init; static vi_get_info_t gdc_get_info; static vi_query_mode_t gdc_query_mode; static vi_set_mode_t gdc_set_mode; static vi_set_border_t gdc_set_border; static vi_save_state_t gdc_save_state; static vi_load_state_t gdc_load_state; static vi_read_hw_cursor_t gdc_read_hw_cursor; static vi_set_hw_cursor_t gdc_set_hw_cursor; static vi_set_hw_cursor_shape_t gdc_set_hw_cursor_shape; static vi_blank_display_t gdc_blank_display; static vi_mmap_t gdc_mmap_buf; static vi_ioctl_t gdc_dev_ioctl; static vi_diag_t gdc_diag; static video_switch_t gdcvidsw = { gdc_probe, gdc_init, gdc_get_info, gdc_query_mode, gdc_set_mode, (vi_save_font_t *)gdc_err, (vi_load_font_t *)gdc_err, (vi_show_font_t *)gdc_err, (vi_save_palette_t *)gdc_err, (vi_load_palette_t *)gdc_err, gdc_set_border, gdc_save_state, gdc_load_state, (vi_set_win_org_t *)gdc_err, gdc_read_hw_cursor, gdc_set_hw_cursor, gdc_set_hw_cursor_shape, gdc_blank_display, gdc_mmap_buf, gdc_dev_ioctl, (vi_clear_t *)gdc_err, (vi_fill_rect_t *)gdc_err, (vi_bitblt_t *)gdc_err, (int (*)(void))gdc_err, (int (*)(void))gdc_err, gdc_diag, }; VIDEO_DRIVER(gdc, gdcvidsw, gdc_configure); /* GDC BIOS standard video modes */ #define EOT (-1) #define NA (-2) static video_info_t bios_vmode[] = { { M_PC98_80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, TEXT_BUF_BASE, TEXT_BUF_SIZE, TEXT_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, #ifdef LINE30 { M_PC98_80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, TEXT_BUF_BASE, TEXT_BUF_SIZE, TEXT_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, #endif { EOT }, }; static int gdc_init_done = FALSE; /* local functions */ static int map_gen_mode_num(int type, int color, int mode); static int probe_adapters(void); static void dump_buffer(u_char *buf, size_t len); #define prologue(adp, flag, err) \ if (!gdc_init_done || !((adp)->va_flags & (flag))) \ return (err) /* a backdoor for the console driver */ static int gdc_configure(int flags) { probe_adapters(); biosadapter[0].va_flags |= V_ADP_INITIALIZED; if (!config_done(&biosadapter[0])) { if (vid_register(&biosadapter[0]) < 0) return 1; biosadapter[0].va_flags |= V_ADP_REGISTERED; } return 1; } /* local subroutines */ /* map a generic video mode to a known mode number */ static int map_gen_mode_num(int type, int color, int mode) { static struct { int from; int to; } mode_map[] = { { M_TEXT_80x25, M_PC98_80x25, }, #ifdef LINE30 { M_TEXT_80x30, M_PC98_80x30, }, #endif }; int i; for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { if (mode_map[i].from == mode) return mode_map[i].to; } return mode; } /* probe video adapters and return the number of detected adapters */ static int probe_adapters(void) { video_info_t info; /* do this test only once */ if (gdc_init_done) return 1; gdc_init_done = TRUE; biosadapter[0] = adapter_init_value[0]; biosadapter[0].va_flags |= V_ADP_PROBED; biosadapter[0].va_mode = biosadapter[0].va_initial_mode = biosadapter[0].va_initial_bios_mode; master_gdc_wait_vsync(); master_gdc_cmd(_GDC_START); /* text ON */ gdc_wait_vsync(); gdc_cmd(_GDC_STOP); /* graphics OFF */ gdc_get_info(&biosadapter[0], biosadapter[0].va_initial_mode, &info); biosadapter[0].va_window = BIOS_PADDRTOVADDR(info.vi_window); biosadapter[0].va_window_size = info.vi_window_size; biosadapter[0].va_window_gran = info.vi_window_gran; biosadapter[0].va_buffer = 0; biosadapter[0].va_buffer_size = 0; if (info.vi_flags & V_INFO_GRAPHICS) { switch (info.vi_depth/info.vi_planes) { case 1: biosadapter[0].va_line_width = info.vi_width/8; break; case 2: biosadapter[0].va_line_width = info.vi_width/4; break; case 4: biosadapter[0].va_line_width = info.vi_width/2; break; case 8: default: /* shouldn't happen */ biosadapter[0].va_line_width = info.vi_width; break; } } else { biosadapter[0].va_line_width = info.vi_width; } bcopy(&info, &biosadapter[0].va_info, sizeof(info)); return 1; } static void master_gdc_cmd(unsigned int cmd) { while ( (inb(IO_GDC1) & 2) != 0); outb(IO_GDC1+2, cmd); } static void master_gdc_prm(unsigned int pmtr) { while ( (inb(IO_GDC1) & 2) != 0); outb(IO_GDC1, pmtr); } static void master_gdc_word_prm(unsigned int wpmtr) { master_gdc_prm(wpmtr & 0x00ff); master_gdc_prm((wpmtr >> 8) & 0x00ff); } static void master_gdc_fifo_empty(void) { while ( (inb(IO_GDC1) & 4) == 0); } static void master_gdc_wait_vsync(void) { while ( (inb(IO_GDC1) & 0x20) != 0); while ( (inb(IO_GDC1) & 0x20) == 0); } static void gdc_cmd(unsigned int cmd) { while ( (inb(IO_GDC2) & 2) != 0); outb( IO_GDC2+2, cmd); } static void gdc_prm(unsigned int pmtr) { while ( (inb(IO_GDC2) & 2) != 0); outb( IO_GDC2, pmtr); } static void gdc_word_prm(unsigned int wpmtr) { gdc_prm(wpmtr & 0x00ff); gdc_prm((wpmtr >> 8) & 0x00ff); } static void gdc_fifo_empty(void) { while ( (inb(IO_GDC2) & 0x04) == 0); } static void gdc_wait_vsync(void) { while ( (inb(IO_GDC2) & 0x20) != 0); while ( (inb(IO_GDC2) & 0x20) == 0); } static int check_gdc_clock(void) { if ((inb(IO_SYSPORT) & 0x80) == 0){ return _5MHZ; } else { return _2_5MHZ; } } static void initialize_gdc(unsigned int mode) { /* start 30line initialize */ int m_mode,s_mode,gdc_clock; gdc_clock = check_gdc_clock(); if (mode == T25_G400){ m_mode = _25L; }else{ m_mode = _30L; } s_mode = 2*mode+gdc_clock; gdc_INFO = m_mode; master_gdc_cmd(_GDC_RESET); master_gdc_cmd(_GDC_MASTER); gdc_cmd(_GDC_RESET); gdc_cmd(_GDC_SLAVE); /* GDC Master */ master_gdc_cmd(_GDC_SYNC); master_gdc_prm(0x00); /* flush less */ /* text & graph */ master_gdc_prm(master_param[m_mode][GDC_CR]); master_gdc_word_prm(((master_param[m_mode][GDC_HFP] << 10) + (master_param[m_mode][GDC_VS] << 5) + master_param[m_mode][GDC_HS])); master_gdc_prm(master_param[m_mode][GDC_HBP]); master_gdc_prm(master_param[m_mode][GDC_VFP]); master_gdc_word_prm(((master_param[m_mode][GDC_VBP] << 10) + (master_param[m_mode][GDC_LF]))); master_gdc_fifo_empty(); master_gdc_cmd(_GDC_PITCH); master_gdc_prm(MasterPCH); master_gdc_fifo_empty(); /* GDC slave */ gdc_cmd(_GDC_SYNC); gdc_prm(0x06); gdc_prm(slave_param[s_mode][GDC_CR]); gdc_word_prm((slave_param[s_mode][GDC_HFP] << 10) + (slave_param[s_mode][GDC_VS] << 5) + (slave_param[s_mode][GDC_HS])); gdc_prm(slave_param[s_mode][GDC_HBP]); gdc_prm(slave_param[s_mode][GDC_VFP]); gdc_word_prm((slave_param[s_mode][GDC_VBP] << 10) + (slave_param[s_mode][GDC_LF])); gdc_fifo_empty(); gdc_cmd(_GDC_PITCH); gdc_prm(SlavePCH[gdc_clock]); gdc_fifo_empty(); /* set Master GDC scroll param */ master_gdc_wait_vsync(); master_gdc_wait_vsync(); master_gdc_wait_vsync(); master_gdc_cmd(_GDC_SCROLL); master_gdc_word_prm(0); master_gdc_word_prm((master_param[m_mode][GDC_LF] << 4) | 0x0000); master_gdc_fifo_empty(); /* set Slave GDC scroll param */ gdc_wait_vsync(); gdc_cmd(_GDC_SCROLL); gdc_word_prm(0); if (gdc_clock == _5MHZ){ gdc_word_prm((SlaveScrlLF[mode] << 4) | 0x4000); }else{ gdc_word_prm(SlaveScrlLF[mode] << 4); } gdc_fifo_empty(); gdc_word_prm(0); if (gdc_clock == _5MHZ){ gdc_word_prm((SlaveScrlLF[mode] << 4) | 0x4000); }else{ gdc_word_prm(SlaveScrlLF[mode] << 4); } gdc_fifo_empty(); /* sync start */ gdc_cmd(_GDC_STOP); gdc_wait_vsync(); gdc_wait_vsync(); gdc_wait_vsync(); master_gdc_cmd(_GDC_START); } /* entry points */ static int gdc_nop(void) { return 0; } static int gdc_err(video_adapter_t *adp, ...) { return ENODEV; } static int gdc_probe(int unit, video_adapter_t **adpp, void *arg, int flags) { probe_adapters(); if (unit >= 1) return ENXIO; *adpp = &biosadapter[unit]; return 0; } static int gdc_init(int unit, video_adapter_t *adp, int flags) { if ((unit >= 1) || (adp == NULL) || !probe_done(adp)) return ENXIO; if (!init_done(adp)) { /* nothing to do really... */ adp->va_flags |= V_ADP_INITIALIZED; } if (!config_done(adp)) { if (vid_register(adp) < 0) return ENXIO; adp->va_flags |= V_ADP_REGISTERED; } return 0; } /* * get_info(): * Return the video_info structure of the requested video mode. */ static int gdc_get_info(video_adapter_t *adp, int mode, video_info_t *info) { int i; if (!gdc_init_done) return ENXIO; mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { if (bios_vmode[i].vi_mode == NA) continue; if (mode == bios_vmode[i].vi_mode) { *info = bios_vmode[i]; info->vi_buffer_size = info->vi_window_size*info->vi_planes; return 0; } } return EINVAL; } /* * query_mode(): * Find a video mode matching the requested parameters. * Fields filled with 0 are considered "don't care" fields and * match any modes. */ static int gdc_query_mode(video_adapter_t *adp, video_info_t *info) { video_info_t buf; int i; if (!gdc_init_done) return -1; for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { if (bios_vmode[i].vi_mode == NA) continue; if ((info->vi_width != 0) && (info->vi_width != bios_vmode[i].vi_width)) continue; if ((info->vi_height != 0) && (info->vi_height != bios_vmode[i].vi_height)) continue; if ((info->vi_cwidth != 0) && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) continue; if ((info->vi_cheight != 0) && (info->vi_cheight != bios_vmode[i].vi_cheight)) continue; if ((info->vi_depth != 0) && (info->vi_depth != bios_vmode[i].vi_depth)) continue; if ((info->vi_planes != 0) && (info->vi_planes != bios_vmode[i].vi_planes)) continue; /* XXX: should check pixel format, memory model */ if ((info->vi_flags != 0) && (info->vi_flags != bios_vmode[i].vi_flags)) continue; /* verify if this mode is supported on this adapter */ if (gdc_get_info(adp, bios_vmode[i].vi_mode, &buf)) continue; return bios_vmode[i].vi_mode; } return -1; } /* * set_mode(): * Change the video mode. */ static int gdc_set_mode(video_adapter_t *adp, int mode) { video_info_t info; prologue(adp, V_ADP_MODECHANGE, ENODEV); mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); if (gdc_get_info(adp, mode, &info)) return EINVAL; #ifdef LINE30 switch (info.vi_mode) { case M_PC98_80x25: /* GDC TEXT MODES */ initialize_gdc(T25_G400); break; case M_PC98_80x30: initialize_gdc(T30_G400); break; default: break; } #endif adp->va_mode = mode; adp->va_flags &= ~V_ADP_COLOR; adp->va_flags |= (info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; #if 0 adp->va_crtc_addr = (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; #endif adp->va_window = BIOS_PADDRTOVADDR(info.vi_window); adp->va_window_size = info.vi_window_size; adp->va_window_gran = info.vi_window_gran; if (info.vi_buffer_size == 0) { adp->va_buffer = 0; adp->va_buffer_size = 0; } else { adp->va_buffer = BIOS_PADDRTOVADDR(info.vi_buffer); adp->va_buffer_size = info.vi_buffer_size; } if (info.vi_flags & V_INFO_GRAPHICS) { switch (info.vi_depth/info.vi_planes) { case 1: adp->va_line_width = info.vi_width/8; break; case 2: adp->va_line_width = info.vi_width/4; break; case 4: adp->va_line_width = info.vi_width/2; break; case 8: default: /* shouldn't happen */ adp->va_line_width = info.vi_width; break; } } else { adp->va_line_width = info.vi_width; } bcopy(&info, &adp->va_info, sizeof(info)); /* move hardware cursor out of the way */ (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); return 0; } /* * set_border(): * Change the border color. */ static int gdc_set_border(video_adapter_t *adp, int color) { outb(0x6c, color << 4); return 0; } /* * save_state(): * Read video card register values. */ static int gdc_save_state(video_adapter_t *adp, void *p, size_t size) { return ENODEV; } /* * load_state(): * Set video card registers at once. */ static int gdc_load_state(video_adapter_t *adp, void *p) { return ENODEV; } /* * read_hw_cursor(): * Read the position of the hardware text cursor. */ static int gdc_read_hw_cursor(video_adapter_t *adp, int *col, int *row) { u_int16_t off; int s; if (!gdc_init_done) return ENXIO; if (adp->va_info.vi_flags & V_INFO_GRAPHICS) return ENODEV; s = spltty(); master_gdc_cmd(0xe0); /* _GDC_CSRR */ while((inb(TEXT_GDC + 0) & 0x1) == 0) {} /* GDC wait */ off = inb(TEXT_GDC + 2); /* EADl */ off |= (inb(TEXT_GDC + 2) << 8); /* EADh */ inb(TEXT_GDC + 2); /* dummy */ inb(TEXT_GDC + 2); /* dummy */ inb(TEXT_GDC + 2); /* dummy */ splx(s); if (off >= ROW*COL) off = 0; *row = off / adp->va_info.vi_width; *col = off % adp->va_info.vi_width; return 0; } /* * set_hw_cursor(): * Move the hardware text cursor. If col and row are both -1, * the cursor won't be shown. */ static int gdc_set_hw_cursor(video_adapter_t *adp, int col, int row) { u_int16_t off; int s; if (!gdc_init_done) return ENXIO; if ((col == -1) && (row == -1)) { off = -1; } else { if (adp->va_info.vi_flags & V_INFO_GRAPHICS) return ENODEV; off = row*adp->va_info.vi_width + col; } s = spltty(); master_gdc_cmd(0x49); /* _GDC_CSRW */ master_gdc_word_prm(off); splx(s); return 0; } /* * set_hw_cursor_shape(): * Change the shape of the hardware text cursor. If the height is zero * or negative, the cursor won't be shown. */ static int gdc_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, int celsize, int blink) { int start; int end; int s; if (!gdc_init_done) return ENXIO; start = celsize - (base + height); end = celsize - base - 1; /* * muPD7220 GDC has anomaly that if end == celsize - 1 then start * must be 0, otherwise the cursor won't be correctly shown * in the first row in the screen. We shall set end to celsize - 2; * if end == celsize -1 && start > 0. XXX */ if ((end == celsize - 1) && (start > 0)) --end; s = spltty(); master_gdc_cmd(0x4b); /* _GDC_CSRFORM */ master_gdc_prm(((height > 0) ? 0x80 : 0) /* cursor on/off */ | ((celsize - 1) & 0x1f)); /* cel size */ master_gdc_word_prm(((end & 0x1f) << 11) /* end line */ | (12 << 6) /* blink rate */ | (blink ? 0x20 : 0) /* blink on/off */ | (start & 0x1f)); /* start line */ splx(s); return 0; } /* * blank_display() * Put the display in power save/power off mode. */ static int gdc_blank_display(video_adapter_t *adp, int mode) { int s; if (!gdc_init_done) return ENXIO; s = splhigh(); switch (mode) { case V_DISPLAY_SUSPEND: case V_DISPLAY_STAND_BY: /* * FIXME: I don't know how to put the display into `suspend' * or `stand-by' mode via GDC... */ /* FALL THROUGH */ case V_DISPLAY_BLANK: if (epson_machine_id == 0x20) { outb(0x43f, 0x42); outb(0xc17, inb(0xc17) & ~0x08); /* turn off side light */ outb(0xc16, inb(0xc16) & ~0x02); /* turn off back light */ outb(0x43f, 0x40); } else { while (!(inb(TEXT_GDC) & 0x20)) /* V-SYNC wait */ ; outb(TEXT_GDC + 2, 0xc); /* text off */ } break; case V_DISPLAY_ON: if (epson_machine_id == 0x20) { outb(0x43f, 0x42); outb(0xc17, inb(0xc17) | 0x08); outb(0xc16, inb(0xc16) | 0x02); outb(0x43f, 0x40); } else { while (!(inb(TEXT_GDC) & 0x20)) /* V-SYNC wait */ ; outb(TEXT_GDC + 2, 0xd); /* text on */ } break; } splx(s); return 0; } /* * mmap(): * Mmap frame buffer. */ static int gdc_mmap_buf(video_adapter_t *adp, vm_offset_t offset, int prot) { /* FIXME: is this correct? XXX */ if (offset > VIDEO_BUF_SIZE - PAGE_SIZE) return -1; return i386_btop(adp->va_info.vi_window + offset); } static int gdc_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) { switch (cmd) { case FBIO_GETWINORG: /* get frame buffer window origin */ *(u_int *)arg = 0; return 0; case FBIO_SETWINORG: /* set frame buffer window origin */ case FBIO_SETDISPSTART: /* set display start address */ case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ case FBIO_GETPALETTE: /* get color palette */ case FBIO_SETPALETTE: /* set color palette */ case FBIOGETCMAP: /* get color palette */ case FBIOPUTCMAP: /* set color palette */ return ENODEV; case FBIOGTYPE: /* get frame buffer type info. */ ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) ((struct fbtype *)arg)->fb_cmsize = 0; else ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; return 0; default: return fb_commonioctl(adp, cmd, arg); } } static void dump_buffer(u_char *buf, size_t len) { int i; for(i = 0; i < len;) { printf("%02x ", buf[i]); if ((++i % 16) == 0) printf("\n"); } } /* * diag(): * Print some information about the video adapter and video modes, * with requested level of details. */ static int gdc_diag(video_adapter_t *adp, int level) { #if FB_DEBUG > 1 int i; #endif if (!gdc_init_done) return ENXIO; fb_dump_adp_info(DRIVER_NAME, adp, level); #if FB_DEBUG > 1 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { if (bios_vmode[i].vi_mode == NA) continue; if (get_mode_param(bios_vmode[i].vi_mode) == NULL) continue; fb_dump_mode_info(DRIVER_NAME, adp, &bios_vmode[i], level); } #endif return 0; } #endif /* NGDC > 0 */