Current Path : /sys/dev/fb/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/dev/fb/vesa.c |
/*- * Copyright (c) 1998 Kazutaka YOKOTA and Michael Smith * Copyright (c) 2009-2012 Jung-uk Kim <jkim@FreeBSD.org> * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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/cdefs.h> __FBSDID("$FreeBSD: release/9.1.0/sys/dev/fb/vesa.c 233581 2012-03-27 23:59:48Z jkim $"); #include "opt_vga.h" #include "opt_vesa.h" #ifndef VGA_NO_MODE_CHANGE #include <sys/param.h> #include <sys/bus.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/lock.h> #include <sys/module.h> #include <sys/malloc.h> #include <sys/mutex.h> #include <sys/fbio.h> #include <sys/sysctl.h> #include <vm/vm.h> #include <vm/vm_extern.h> #include <vm/vm_kern.h> #include <vm/vm_param.h> #include <vm/pmap.h> #include <machine/pc/bios.h> #include <dev/fb/vesa.h> #include <dev/fb/fbreg.h> #include <dev/fb/vgareg.h> #include <dev/pci/pcivar.h> #include <isa/isareg.h> #include <compat/x86bios/x86bios.h> #define VESA_BIOS_OFFSET 0xc0000 #define VESA_PALETTE_SIZE (256 * 4) #define VESA_VIA_CLE266 "VIA CLE266\r\n" #ifndef VESA_DEBUG #define VESA_DEBUG 0 #endif /* VESA video adapter state buffer stub */ struct adp_state { int sig; #define V_STATE_SIG 0x61736576 u_char regs[1]; }; typedef struct adp_state adp_state_t; static struct mtx vesa_lock; static int vesa_state; static void *vesa_state_buf; static uint32_t vesa_state_buf_offs; static ssize_t vesa_state_buf_size; static u_char *vesa_palette; static uint32_t vesa_palette_offs; static void *vesa_vmem_buf; static void *vesa_bios; static uint32_t vesa_bios_offs; static uint32_t vesa_bios_int10; static size_t vesa_bios_size; /* VESA video adapter */ static video_adapter_t *vesa_adp; SYSCTL_NODE(_debug, OID_AUTO, vesa, CTLFLAG_RD, NULL, "VESA debugging"); static int vesa_shadow_rom; TUNABLE_INT("debug.vesa.shadow_rom", &vesa_shadow_rom); SYSCTL_INT(_debug_vesa, OID_AUTO, shadow_rom, CTLFLAG_RDTUN, &vesa_shadow_rom, 0, "Enable video BIOS shadow"); /* VESA functions */ #if 0 static int vesa_nop(void); #endif static int vesa_error(void); static vi_probe_t vesa_probe; static vi_init_t vesa_init; static vi_get_info_t vesa_get_info; static vi_query_mode_t vesa_query_mode; static vi_set_mode_t vesa_set_mode; static vi_save_font_t vesa_save_font; static vi_load_font_t vesa_load_font; static vi_show_font_t vesa_show_font; static vi_save_palette_t vesa_save_palette; static vi_load_palette_t vesa_load_palette; static vi_set_border_t vesa_set_border; static vi_save_state_t vesa_save_state; static vi_load_state_t vesa_load_state; static vi_set_win_org_t vesa_set_origin; static vi_read_hw_cursor_t vesa_read_hw_cursor; static vi_set_hw_cursor_t vesa_set_hw_cursor; static vi_set_hw_cursor_shape_t vesa_set_hw_cursor_shape; static vi_blank_display_t vesa_blank_display; static vi_mmap_t vesa_mmap; static vi_ioctl_t vesa_ioctl; static vi_clear_t vesa_clear; static vi_fill_rect_t vesa_fill_rect; static vi_bitblt_t vesa_bitblt; static vi_diag_t vesa_diag; static int vesa_bios_info(int level); static video_switch_t vesavidsw = { vesa_probe, vesa_init, vesa_get_info, vesa_query_mode, vesa_set_mode, vesa_save_font, vesa_load_font, vesa_show_font, vesa_save_palette, vesa_load_palette, vesa_set_border, vesa_save_state, vesa_load_state, vesa_set_origin, vesa_read_hw_cursor, vesa_set_hw_cursor, vesa_set_hw_cursor_shape, vesa_blank_display, vesa_mmap, vesa_ioctl, vesa_clear, vesa_fill_rect, vesa_bitblt, vesa_error, vesa_error, vesa_diag, }; static video_switch_t *prevvidsw; /* VESA BIOS video modes */ #define VESA_MAXMODES 64 #define EOT (-1) #define NA (-2) #define MODE_TABLE_DELTA 8 static int vesa_vmode_max; static video_info_t *vesa_vmode; static int vesa_init_done; static struct vesa_info *vesa_adp_info; static u_int16_t *vesa_vmodetab; static char *vesa_oemstr; static char *vesa_venderstr; static char *vesa_prodstr; static char *vesa_revstr; /* local macros and functions */ #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) static int int10_set_mode(int mode); static int vesa_bios_post(void); static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode, int flags); static int vesa_bios_set_mode(int mode); #if 0 static int vesa_bios_get_dac(void); #endif static int vesa_bios_set_dac(int bits); static int vesa_bios_save_palette(int start, int colors, u_char *palette, int bits); static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, int bits); static int vesa_bios_load_palette(int start, int colors, u_char *palette, int bits); static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, int bits); #define STATE_SIZE 0 #define STATE_SAVE 1 #define STATE_LOAD 2 static ssize_t vesa_bios_state_buf_size(int); static int vesa_bios_save_restore(int code, void *p); #ifdef MODE_TABLE_BROKEN static int vesa_bios_get_line_length(void); #endif static int vesa_bios_set_line_length(int pixel, int *bytes, int *lines); #if 0 static int vesa_bios_get_start(int *x, int *y); #endif static int vesa_bios_set_start(int x, int y); static int vesa_map_gen_mode_num(int type, int color, int mode); static int vesa_translate_flags(u_int16_t vflags); static int vesa_translate_mmodel(u_int8_t vmodel); static int vesa_get_bpscanline(struct vesa_mode *vmode); static int vesa_bios_init(void); static void vesa_bios_uninit(void); static void vesa_clear_modes(video_info_t *info, int color); #if 0 static int vesa_get_origin(video_adapter_t *adp, off_t *offset); #endif /* INT 10 BIOS calls */ static int int10_set_mode(int mode) { x86regs_t regs; x86bios_init_regs(®s); regs.R_AL = mode; x86bios_intr(®s, 0x10); return (0); } static int vesa_bios_post(void) { x86regs_t regs; devclass_t dc; device_t *devs; device_t dev; int count, i, is_pci; if (x86bios_get_orm(vesa_bios_offs) == NULL) return (1); dev = NULL; is_pci = 0; /* Find the matching PCI video controller. */ dc = devclass_find("vgapci"); if (dc != NULL && devclass_get_devices(dc, &devs, &count) == 0) { for (i = 0; i < count; i++) if (device_get_flags(devs[i]) != 0 && x86bios_match_device(vesa_bios_offs, devs[i])) { dev = devs[i]; is_pci = 1; break; } free(devs, M_TEMP); } /* Try VGA if a PCI device is not found. */ if (dev == NULL) { dc = devclass_find(VGA_DRIVER_NAME); if (dc != NULL) dev = devclass_get_device(dc, 0); } if (bootverbose) printf("%s: calling BIOS POST\n", dev == NULL ? "VESA" : device_get_nameunit(dev)); x86bios_init_regs(®s); if (is_pci) { regs.R_AH = pci_get_bus(dev); regs.R_AL = (pci_get_slot(dev) << 3) | (pci_get_function(dev) & 0x07); } regs.R_DL = 0x80; x86bios_call(®s, X86BIOS_PHYSTOSEG(vesa_bios_offs + 3), X86BIOS_PHYSTOOFF(vesa_bios_offs + 3)); if (x86bios_get_intr(0x10) == 0) return (1); return (0); } /* VESA BIOS calls */ static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode, int flags) { x86regs_t regs; uint32_t offs; void *buf; buf = x86bios_alloc(&offs, sizeof(*vmode), flags); if (buf == NULL) return (1); x86bios_init_regs(®s); regs.R_AX = 0x4f01; regs.R_CX = mode; regs.R_ES = X86BIOS_PHYSTOSEG(offs); regs.R_DI = X86BIOS_PHYSTOOFF(offs); x86bios_intr(®s, 0x10); if (regs.R_AX != 0x004f) { x86bios_free(buf, sizeof(*vmode)); return (1); } bcopy(buf, vmode, sizeof(*vmode)); x86bios_free(buf, sizeof(*vmode)); return (0); } static int vesa_bios_set_mode(int mode) { x86regs_t regs; x86bios_init_regs(®s); regs.R_AX = 0x4f02; regs.R_BX = mode; x86bios_intr(®s, 0x10); return (regs.R_AX != 0x004f); } #if 0 static int vesa_bios_get_dac(void) { x86regs_t regs; x86bios_init_regs(®s); regs.R_AX = 0x4f08; regs.R_BL = 1; x86bios_intr(®s, 0x10); if (regs.R_AX != 0x004f) return (6); return (regs.R_BH); } #endif static int vesa_bios_set_dac(int bits) { x86regs_t regs; x86bios_init_regs(®s); regs.R_AX = 0x4f08; /* regs.R_BL = 0; */ regs.R_BH = bits; x86bios_intr(®s, 0x10); if (regs.R_AX != 0x004f) return (6); return (regs.R_BH); } static int vesa_bios_save_palette(int start, int colors, u_char *palette, int bits) { x86regs_t regs; int i; x86bios_init_regs(®s); regs.R_AX = 0x4f09; regs.R_BL = 1; regs.R_CX = colors; regs.R_DX = start; regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs); regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs); bits = 8 - bits; mtx_lock(&vesa_lock); x86bios_intr(®s, 0x10); if (regs.R_AX != 0x004f) { mtx_unlock(&vesa_lock); return (1); } for (i = 0; i < colors; ++i) { palette[i * 3] = vesa_palette[i * 4 + 2] << bits; palette[i * 3 + 1] = vesa_palette[i * 4 + 1] << bits; palette[i * 3 + 2] = vesa_palette[i * 4] << bits; } mtx_unlock(&vesa_lock); return (0); } static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, int bits) { x86regs_t regs; int i; x86bios_init_regs(®s); regs.R_AX = 0x4f09; regs.R_BL = 1; regs.R_CX = colors; regs.R_DX = start; regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs); regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs); bits = 8 - bits; mtx_lock(&vesa_lock); x86bios_intr(®s, 0x10); if (regs.R_AX != 0x004f) { mtx_unlock(&vesa_lock); return (1); } for (i = 0; i < colors; ++i) { r[i] = vesa_palette[i * 4 + 2] << bits; g[i] = vesa_palette[i * 4 + 1] << bits; b[i] = vesa_palette[i * 4] << bits; } mtx_unlock(&vesa_lock); return (0); } static int vesa_bios_load_palette(int start, int colors, u_char *palette, int bits) { x86regs_t regs; int i; x86bios_init_regs(®s); regs.R_AX = 0x4f09; /* regs.R_BL = 0; */ regs.R_CX = colors; regs.R_DX = start; regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs); regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs); bits = 8 - bits; mtx_lock(&vesa_lock); for (i = 0; i < colors; ++i) { vesa_palette[i * 4] = palette[i * 3 + 2] >> bits; vesa_palette[i * 4 + 1] = palette[i * 3 + 1] >> bits; vesa_palette[i * 4 + 2] = palette[i * 3] >> bits; vesa_palette[i * 4 + 3] = 0; } x86bios_intr(®s, 0x10); mtx_unlock(&vesa_lock); return (regs.R_AX != 0x004f); } static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, int bits) { x86regs_t regs; int i; x86bios_init_regs(®s); regs.R_AX = 0x4f09; /* regs.R_BL = 0; */ regs.R_CX = colors; regs.R_DX = start; regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs); regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs); bits = 8 - bits; mtx_lock(&vesa_lock); for (i = 0; i < colors; ++i) { vesa_palette[i * 4] = b[i] >> bits; vesa_palette[i * 4 + 1] = g[i] >> bits; vesa_palette[i * 4 + 2] = r[i] >> bits; vesa_palette[i * 4 + 3] = 0; } x86bios_intr(®s, 0x10); mtx_unlock(&vesa_lock); return (regs.R_AX != 0x004f); } static ssize_t vesa_bios_state_buf_size(int state) { x86regs_t regs; x86bios_init_regs(®s); regs.R_AX = 0x4f04; /* regs.R_DL = STATE_SIZE; */ regs.R_CX = state; x86bios_intr(®s, 0x10); if (regs.R_AX != 0x004f) return (0); return (regs.R_BX * 64); } static int vesa_bios_save_restore(int code, void *p) { x86regs_t regs; if (code != STATE_SAVE && code != STATE_LOAD) return (1); x86bios_init_regs(®s); regs.R_AX = 0x4f04; regs.R_DL = code; regs.R_CX = vesa_state; regs.R_ES = X86BIOS_PHYSTOSEG(vesa_state_buf_offs); regs.R_BX = X86BIOS_PHYSTOOFF(vesa_state_buf_offs); mtx_lock(&vesa_lock); switch (code) { case STATE_SAVE: x86bios_intr(®s, 0x10); bcopy(vesa_state_buf, p, vesa_state_buf_size); break; case STATE_LOAD: bcopy(p, vesa_state_buf, vesa_state_buf_size); x86bios_intr(®s, 0x10); break; } mtx_unlock(&vesa_lock); return (regs.R_AX != 0x004f); } #ifdef MODE_TABLE_BROKEN static int vesa_bios_get_line_length(void) { x86regs_t regs; x86bios_init_regs(®s); regs.R_AX = 0x4f06; regs.R_BL = 1; x86bios_intr(®s, 0x10); if (regs.R_AX != 0x004f) return (-1); return (regs.R_BX); } #endif static int vesa_bios_set_line_length(int pixel, int *bytes, int *lines) { x86regs_t regs; x86bios_init_regs(®s); regs.R_AX = 0x4f06; /* regs.R_BL = 0; */ regs.R_CX = pixel; x86bios_intr(®s, 0x10); #if VESA_DEBUG > 1 printf("bx:%d, cx:%d, dx:%d\n", regs.R_BX, regs.R_CX, regs.R_DX); #endif if (regs.R_AX != 0x004f) return (-1); if (bytes != NULL) *bytes = regs.R_BX; if (lines != NULL) *lines = regs.R_DX; return (0); } #if 0 static int vesa_bios_get_start(int *x, int *y) { x86regs_t regs; x86bios_init_regs(®s); regs.R_AX = 0x4f07; regs.R_BL = 1; x86bios_intr(®s, 0x10); if (regs.R_AX != 0x004f) return (-1); *x = regs.R_CX; *y = regs.R_DX; return (0); } #endif static int vesa_bios_set_start(int x, int y) { x86regs_t regs; x86bios_init_regs(®s); regs.R_AX = 0x4f07; regs.R_BL = 0x80; regs.R_CX = x; regs.R_DX = y; x86bios_intr(®s, 0x10); return (regs.R_AX != 0x004f); } /* map a generic video mode to a known mode */ static int vesa_map_gen_mode_num(int type, int color, int mode) { static struct { int from; int to; } mode_map[] = { { M_TEXT_132x25, M_VESA_C132x25 }, { M_TEXT_132x43, M_VESA_C132x43 }, { M_TEXT_132x50, M_VESA_C132x50 }, { M_TEXT_132x60, M_VESA_C132x60 }, }; 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); } static int vesa_translate_flags(u_int16_t vflags) { static struct { u_int16_t mask; int set; int reset; } ftable[] = { { V_MODECOLOR, V_INFO_COLOR, 0 }, { V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 }, { V_MODELFB, V_INFO_LINEAR, 0 }, { V_MODENONVGA, V_INFO_NONVGA, 0 }, }; int flags; int i; for (flags = 0, i = 0; i < sizeof(ftable)/sizeof(ftable[0]); ++i) { flags |= (vflags & ftable[i].mask) ? ftable[i].set : ftable[i].reset; } return (flags); } static int vesa_translate_mmodel(u_int8_t vmodel) { static struct { u_int8_t vmodel; int mmodel; } mtable[] = { { V_MMTEXT, V_INFO_MM_TEXT }, { V_MMCGA, V_INFO_MM_CGA }, { V_MMHGC, V_INFO_MM_HGC }, { V_MMEGA, V_INFO_MM_PLANAR }, { V_MMPACKED, V_INFO_MM_PACKED }, { V_MMDIRCOLOR, V_INFO_MM_DIRECT }, }; int i; for (i = 0; mtable[i].mmodel >= 0; ++i) { if (mtable[i].vmodel == vmodel) return (mtable[i].mmodel); } return (V_INFO_MM_OTHER); } static int vesa_get_bpscanline(struct vesa_mode *vmode) { int bpsl; if ((vmode->v_modeattr & V_MODEGRAPHICS) != 0) { /* Find the minimum length. */ switch (vmode->v_bpp / vmode->v_planes) { case 1: bpsl = vmode->v_width / 8; break; case 2: bpsl = vmode->v_width / 4; break; case 4: bpsl = vmode->v_width / 2; break; default: bpsl = vmode->v_width * ((vmode->v_bpp + 7) / 8); bpsl /= vmode->v_planes; break; } /* Use VBE 3.0 information if it looks sane. */ if ((vmode->v_modeattr & V_MODELFB) != 0 && vesa_adp_info->v_version >= 0x0300 && vmode->v_linbpscanline > bpsl) return (vmode->v_linbpscanline); /* Return the minimum if the mode table looks absurd. */ if (vmode->v_bpscanline < bpsl) return (bpsl); } return (vmode->v_bpscanline); } #define VESA_MAXSTR 256 #define VESA_STRCPY(dst, src) do { \ char *str; \ int i; \ dst = malloc(VESA_MAXSTR, M_DEVBUF, M_WAITOK); \ str = x86bios_offset(BIOS_SADDRTOLADDR(src)); \ for (i = 0; i < VESA_MAXSTR - 1 && str[i] != '\0'; i++) \ dst[i] = str[i]; \ dst[i] = '\0'; \ } while (0) static int vesa_bios_init(void) { struct vesa_mode vmode; struct vesa_info *buf; video_info_t *p; x86regs_t regs; size_t bsize; size_t msize; void *vmbuf; uint8_t *vbios; uint32_t offs; uint16_t vers; int is_via_cle266; int modes; int i; if (vesa_init_done) return (0); vesa_bios_offs = VESA_BIOS_OFFSET; /* * If the VBE real mode interrupt vector is not found, try BIOS POST. */ vesa_bios_int10 = x86bios_get_intr(0x10); if (vesa_bios_int10 == 0) { if (vesa_bios_post() != 0) return (1); vesa_bios_int10 = x86bios_get_intr(0x10); if (vesa_bios_int10 == 0) return (1); } /* * Shadow video ROM. */ offs = vesa_bios_int10; if (vesa_shadow_rom) { vbios = x86bios_get_orm(vesa_bios_offs); if (vbios != NULL) { vesa_bios_size = vbios[2] * 512; if (((VESA_BIOS_OFFSET << 12) & 0xffff0000) == (vesa_bios_int10 & 0xffff0000) && vesa_bios_size > (vesa_bios_int10 & 0xffff)) { vesa_bios = x86bios_alloc(&vesa_bios_offs, vesa_bios_size, M_WAITOK); bcopy(vbios, vesa_bios, vesa_bios_size); offs = ((vesa_bios_offs << 12) & 0xffff0000) + (vesa_bios_int10 & 0xffff); x86bios_set_intr(0x10, offs); } } if (vesa_bios == NULL) printf("VESA: failed to shadow video ROM\n"); } if (bootverbose) printf("VESA: INT 0x10 vector 0x%04x:0x%04x\n", (offs >> 16) & 0xffff, offs & 0xffff); x86bios_init_regs(®s); regs.R_AX = 0x4f00; vmbuf = x86bios_alloc(&offs, sizeof(*buf), M_WAITOK); regs.R_ES = X86BIOS_PHYSTOSEG(offs); regs.R_DI = X86BIOS_PHYSTOOFF(offs); bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */ x86bios_intr(®s, 0x10); if (regs.R_AX != 0x004f || bcmp("VESA", vmbuf, 4) != 0) goto fail; vesa_adp_info = buf = malloc(sizeof(*buf), M_DEVBUF, M_WAITOK); bcopy(vmbuf, buf, sizeof(*buf)); if (bootverbose) { printf("VESA: information block\n"); hexdump(buf, sizeof(*buf), NULL, HD_OMIT_CHARS); } vers = buf->v_version = le16toh(buf->v_version); buf->v_oemstr = le32toh(buf->v_oemstr); buf->v_flags = le32toh(buf->v_flags); buf->v_modetable = le32toh(buf->v_modetable); buf->v_memsize = le16toh(buf->v_memsize); buf->v_revision = le16toh(buf->v_revision); buf->v_venderstr = le32toh(buf->v_venderstr); buf->v_prodstr = le32toh(buf->v_prodstr); buf->v_revstr = le32toh(buf->v_revstr); if (vers < 0x0102) { printf("VESA: VBE version %d.%d is not supported; " "version 1.2 or later is required.\n", ((vers & 0xf000) >> 12) * 10 + ((vers & 0x0f00) >> 8), ((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f)); goto fail; } VESA_STRCPY(vesa_oemstr, buf->v_oemstr); if (vers >= 0x0200) { VESA_STRCPY(vesa_venderstr, buf->v_venderstr); VESA_STRCPY(vesa_prodstr, buf->v_prodstr); VESA_STRCPY(vesa_revstr, buf->v_revstr); } is_via_cle266 = strncmp(vesa_oemstr, VESA_VIA_CLE266, sizeof(VESA_VIA_CLE266)) == 0; if (buf->v_modetable == 0) goto fail; msize = (size_t)buf->v_memsize * 64 * 1024; vesa_vmodetab = x86bios_offset(BIOS_SADDRTOLADDR(buf->v_modetable)); for (i = 0, modes = 0; (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) && (vesa_vmodetab[i] != 0xffff); ++i) { vesa_vmodetab[i] = le16toh(vesa_vmodetab[i]); if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode, M_WAITOK)) continue; vmode.v_modeattr = le16toh(vmode.v_modeattr); vmode.v_wgran = le16toh(vmode.v_wgran); vmode.v_wsize = le16toh(vmode.v_wsize); vmode.v_waseg = le16toh(vmode.v_waseg); vmode.v_wbseg = le16toh(vmode.v_wbseg); vmode.v_posfunc = le32toh(vmode.v_posfunc); vmode.v_bpscanline = le16toh(vmode.v_bpscanline); vmode.v_width = le16toh(vmode.v_width); vmode.v_height = le16toh(vmode.v_height); vmode.v_lfb = le32toh(vmode.v_lfb); vmode.v_offscreen = le32toh(vmode.v_offscreen); vmode.v_offscreensize = le16toh(vmode.v_offscreensize); vmode.v_linbpscanline = le16toh(vmode.v_linbpscanline); vmode.v_maxpixelclock = le32toh(vmode.v_maxpixelclock); /* reject unsupported modes */ #if 0 if ((vmode.v_modeattr & (V_MODESUPP | V_MODEOPTINFO | V_MODENONVGA)) != (V_MODESUPP | V_MODEOPTINFO)) continue; #else if ((vmode.v_modeattr & V_MODEOPTINFO) == 0) { #if VESA_DEBUG > 1 printf("Rejecting VESA %s mode: %d x %d x %d bpp " " attr = %x\n", vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text", vmode.v_width, vmode.v_height, vmode.v_bpp, vmode.v_modeattr); #endif continue; } #endif bsize = vesa_get_bpscanline(&vmode) * vmode.v_height; if ((vmode.v_modeattr & V_MODEGRAPHICS) != 0) bsize *= vmode.v_planes; /* Does it have enough memory to support this mode? */ if (msize < bsize) { #if VESA_DEBUG > 1 printf("Rejecting VESA %s mode: %d x %d x %d bpp " " attr = %x, not enough memory\n", vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text", vmode.v_width, vmode.v_height, vmode.v_bpp, vmode.v_modeattr); #endif continue; } /* expand the array if necessary */ if (modes >= vesa_vmode_max) { vesa_vmode_max += MODE_TABLE_DELTA; p = malloc(sizeof(*vesa_vmode) * (vesa_vmode_max + 1), M_DEVBUF, M_WAITOK); #if VESA_DEBUG > 1 printf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n", modes, vesa_vmode_max); #endif if (modes > 0) { bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes); free(vesa_vmode, M_DEVBUF); } vesa_vmode = p; } #if VESA_DEBUG > 1 printf("Found VESA %s mode: %d x %d x %d bpp\n", vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text", vmode.v_width, vmode.v_height, vmode.v_bpp); #endif if (is_via_cle266) { if ((vmode.v_width & 0xff00) >> 8 == vmode.v_height - 1) { vmode.v_width &= 0xff; vmode.v_waseg = 0xb8000 >> 4; } } /* copy some fields */ bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes])); vesa_vmode[modes].vi_mode = vesa_vmodetab[i]; vesa_vmode[modes].vi_width = vmode.v_width; vesa_vmode[modes].vi_height = vmode.v_height; vesa_vmode[modes].vi_depth = vmode.v_bpp; vesa_vmode[modes].vi_planes = vmode.v_planes; vesa_vmode[modes].vi_cwidth = vmode.v_cwidth; vesa_vmode[modes].vi_cheight = vmode.v_cheight; vesa_vmode[modes].vi_window = (vm_offset_t)vmode.v_waseg << 4; /* XXX window B */ vesa_vmode[modes].vi_window_size = vmode.v_wsize * 1024; vesa_vmode[modes].vi_window_gran = vmode.v_wgran * 1024; if (vmode.v_modeattr & V_MODELFB) vesa_vmode[modes].vi_buffer = vmode.v_lfb; vesa_vmode[modes].vi_buffer_size = bsize; vesa_vmode[modes].vi_mem_model = vesa_translate_mmodel(vmode.v_memmodel); switch (vesa_vmode[modes].vi_mem_model) { case V_INFO_MM_DIRECT: if ((vmode.v_modeattr & V_MODELFB) != 0 && vers >= 0x0300) { vesa_vmode[modes].vi_pixel_fields[0] = vmode.v_linredfieldpos; vesa_vmode[modes].vi_pixel_fields[1] = vmode.v_lingreenfieldpos; vesa_vmode[modes].vi_pixel_fields[2] = vmode.v_linbluefieldpos; vesa_vmode[modes].vi_pixel_fields[3] = vmode.v_linresfieldpos; vesa_vmode[modes].vi_pixel_fsizes[0] = vmode.v_linredmasksize; vesa_vmode[modes].vi_pixel_fsizes[1] = vmode.v_lingreenmasksize; vesa_vmode[modes].vi_pixel_fsizes[2] = vmode.v_linbluemasksize; vesa_vmode[modes].vi_pixel_fsizes[3] = vmode.v_linresmasksize; } else { vesa_vmode[modes].vi_pixel_fields[0] = vmode.v_redfieldpos; vesa_vmode[modes].vi_pixel_fields[1] = vmode.v_greenfieldpos; vesa_vmode[modes].vi_pixel_fields[2] = vmode.v_bluefieldpos; vesa_vmode[modes].vi_pixel_fields[3] = vmode.v_resfieldpos; vesa_vmode[modes].vi_pixel_fsizes[0] = vmode.v_redmasksize; vesa_vmode[modes].vi_pixel_fsizes[1] = vmode.v_greenmasksize; vesa_vmode[modes].vi_pixel_fsizes[2] = vmode.v_bluemasksize; vesa_vmode[modes].vi_pixel_fsizes[3] = vmode.v_resmasksize; } /* FALLTHROUGH */ case V_INFO_MM_PACKED: vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7) / 8; break; } vesa_vmode[modes].vi_flags = vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA; ++modes; } vesa_vmode[modes].vi_mode = EOT; if (bootverbose) printf("VESA: %d mode(s) found\n", modes); if (modes == 0) goto fail; x86bios_free(vmbuf, sizeof(*buf)); /* Probe supported save/restore states. */ for (i = 0; i < 4; i++) if (vesa_bios_state_buf_size(1 << i) > 0) vesa_state |= 1 << i; if (vesa_state != 0) vesa_state_buf_size = vesa_bios_state_buf_size(vesa_state); vesa_palette = x86bios_alloc(&vesa_palette_offs, VESA_PALETTE_SIZE + vesa_state_buf_size, M_WAITOK); if (vesa_state_buf_size > 0) { vesa_state_buf = vesa_palette + VESA_PALETTE_SIZE; vesa_state_buf_offs = vesa_palette_offs + VESA_PALETTE_SIZE; } return (0); fail: x86bios_free(vmbuf, sizeof(buf)); vesa_bios_uninit(); return (1); } static void vesa_bios_uninit(void) { if (vesa_bios != NULL) { x86bios_set_intr(0x10, vesa_bios_int10); vesa_bios_offs = VESA_BIOS_OFFSET; x86bios_free(vesa_bios, vesa_bios_size); vesa_bios = NULL; } if (vesa_adp_info != NULL) { free(vesa_adp_info, M_DEVBUF); vesa_adp_info = NULL; } if (vesa_oemstr != NULL) { free(vesa_oemstr, M_DEVBUF); vesa_oemstr = NULL; } if (vesa_venderstr != NULL) { free(vesa_venderstr, M_DEVBUF); vesa_venderstr = NULL; } if (vesa_prodstr != NULL) { free(vesa_prodstr, M_DEVBUF); vesa_prodstr = NULL; } if (vesa_revstr != NULL) { free(vesa_revstr, M_DEVBUF); vesa_revstr = NULL; } if (vesa_vmode != NULL) { free(vesa_vmode, M_DEVBUF); vesa_vmode = NULL; } if (vesa_palette != NULL) { x86bios_free(vesa_palette, VESA_PALETTE_SIZE + vesa_state_buf_size); vesa_palette = NULL; } } static void vesa_clear_modes(video_info_t *info, int color) { while (info->vi_mode != EOT) { if ((info->vi_flags & V_INFO_COLOR) != color) info->vi_mode = NA; ++info; } } /* entry points */ static int vesa_configure(int flags) { video_adapter_t *adp; int adapters; int error; int i; if (vesa_init_done) return (0); if (flags & VIO_PROBE_ONLY) return (0); /* * If the VESA module has already been loaded, abort loading * the module this time. */ for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) { if (adp->va_flags & V_ADP_VESA) return (ENXIO); if (adp->va_type == KD_VGA) break; } /* * The VGA adapter is not found. This is because either * 1) the VGA driver has not been initialized, or 2) the VGA card * is not present. If 1) is the case, we shall defer * initialization for now and try again later. */ if (adp == NULL) { vga_sub_configure = vesa_configure; return (ENODEV); } /* count number of registered adapters */ for (++i; vid_get_adapter(i) != NULL; ++i) ; adapters = i; /* call VESA BIOS */ vesa_adp = adp; if (vesa_bios_init()) { vesa_adp = NULL; return (ENXIO); } vesa_adp->va_flags |= V_ADP_VESA; /* remove conflicting modes if we have more than one adapter */ if (adapters > 1) { vesa_clear_modes(vesa_vmode, (vesa_adp->va_flags & V_ADP_COLOR) ? V_INFO_COLOR : 0); } if ((error = vesa_load_ioctl()) == 0) { prevvidsw = vidsw[vesa_adp->va_index]; vidsw[vesa_adp->va_index] = &vesavidsw; vesa_init_done = TRUE; } else { vesa_adp = NULL; return (error); } return (0); } #if 0 static int vesa_nop(void) { return (0); } #endif static int vesa_error(void) { return (1); } static int vesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags) { return ((*prevvidsw->probe)(unit, adpp, arg, flags)); } static int vesa_init(int unit, video_adapter_t *adp, int flags) { return ((*prevvidsw->init)(unit, adp, flags)); } static int vesa_get_info(video_adapter_t *adp, int mode, video_info_t *info) { int i; if ((*prevvidsw->get_info)(adp, mode, info) == 0) return (0); if (adp != vesa_adp) return (1); mode = vesa_map_gen_mode_num(vesa_adp->va_type, vesa_adp->va_flags & V_ADP_COLOR, mode); for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { if (vesa_vmode[i].vi_mode == NA) continue; if (vesa_vmode[i].vi_mode == mode) { *info = vesa_vmode[i]; return (0); } } return (1); } static int vesa_query_mode(video_adapter_t *adp, video_info_t *info) { int i; if ((*prevvidsw->query_mode)(adp, info) == 0) return (0); if (adp != vesa_adp) return (ENODEV); for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { if ((info->vi_width != 0) && (info->vi_width != vesa_vmode[i].vi_width)) continue; if ((info->vi_height != 0) && (info->vi_height != vesa_vmode[i].vi_height)) continue; if ((info->vi_cwidth != 0) && (info->vi_cwidth != vesa_vmode[i].vi_cwidth)) continue; if ((info->vi_cheight != 0) && (info->vi_cheight != vesa_vmode[i].vi_cheight)) continue; if ((info->vi_depth != 0) && (info->vi_depth != vesa_vmode[i].vi_depth)) continue; if ((info->vi_planes != 0) && (info->vi_planes != vesa_vmode[i].vi_planes)) continue; /* pixel format, memory model */ if ((info->vi_flags != 0) && (info->vi_flags != vesa_vmode[i].vi_flags)) continue; *info = vesa_vmode[i]; return (0); } return (ENODEV); } static int vesa_set_mode(video_adapter_t *adp, int mode) { video_info_t info; if (adp != vesa_adp) return ((*prevvidsw->set_mode)(adp, mode)); mode = vesa_map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); #if VESA_DEBUG > 0 printf("VESA: set_mode(): %d(%x) -> %d(%x)\n", adp->va_mode, adp->va_mode, mode, mode); #endif /* * If the current mode is a VESA mode and the new mode is not, * restore the state of the adapter first by setting one of the * standard VGA mode, so that non-standard, extended SVGA registers * are set to the state compatible with the standard VGA modes. * Otherwise (*prevvidsw->set_mode)() may not be able to set up * the new mode correctly. */ if (VESA_MODE(adp->va_mode)) { if (!VESA_MODE(mode) && (*prevvidsw->get_info)(adp, mode, &info) == 0) { if ((adp->va_flags & V_ADP_DAC8) != 0) { vesa_bios_set_dac(6); adp->va_flags &= ~V_ADP_DAC8; } int10_set_mode(adp->va_initial_bios_mode); if (adp->va_info.vi_flags & V_INFO_LINEAR) pmap_unmapdev(adp->va_buffer, vesa_adp_info->v_memsize * 64 * 1024); /* * Once (*prevvidsw->get_info)() succeeded, * (*prevvidsw->set_mode)() below won't fail... */ } } /* we may not need to handle this mode after all... */ if (!VESA_MODE(mode) && (*prevvidsw->set_mode)(adp, mode) == 0) return (0); /* is the new mode supported? */ if (vesa_get_info(adp, mode, &info)) return (1); /* assert(VESA_MODE(mode)); */ #if VESA_DEBUG > 0 printf("VESA: about to set a VESA mode...\n"); #endif /* don't use the linear frame buffer for text modes. XXX */ if (!(info.vi_flags & V_INFO_GRAPHICS)) info.vi_flags &= ~V_INFO_LINEAR; if ((info.vi_flags & V_INFO_LINEAR) != 0) mode |= 0x4000; if (vesa_bios_set_mode(mode | 0x8000)) return (1); /* Palette format is reset by the above VBE function call. */ adp->va_flags &= ~V_ADP_DAC8; if ((vesa_adp_info->v_flags & V_DAC8) != 0 && (info.vi_flags & V_INFO_GRAPHICS) != 0 && vesa_bios_set_dac(8) > 6) adp->va_flags |= V_ADP_DAC8; if (adp->va_info.vi_flags & V_INFO_LINEAR) pmap_unmapdev(adp->va_buffer, vesa_adp_info->v_memsize * 64 * 1024); #if VESA_DEBUG > 0 printf("VESA: mode set!\n"); #endif vesa_adp->va_mode = mode & 0x1ff; /* Mode number is 9-bit. */ vesa_adp->va_flags &= ~V_ADP_COLOR; vesa_adp->va_flags |= (info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; vesa_adp->va_crtc_addr = (vesa_adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; vesa_adp->va_line_width = info.vi_buffer_size / info.vi_height; if ((info.vi_flags & V_INFO_GRAPHICS) != 0) vesa_adp->va_line_width /= info.vi_planes; #ifdef MODE_TABLE_BROKEN /* If VBE function returns bigger bytes per scan line, use it. */ { int bpsl = vesa_bios_get_line_length(); if (bpsl > vesa_adp->va_line_width) { vesa_adp->va_line_width = bpsl; info.vi_buffer_size = bpsl * info.vi_height; if ((info.vi_flags & V_INFO_GRAPHICS) != 0) info.vi_buffer_size *= info.vi_planes; } } #endif if (info.vi_flags & V_INFO_LINEAR) { #if VESA_DEBUG > 1 printf("VESA: setting up LFB\n"); #endif vesa_adp->va_buffer = (vm_offset_t)pmap_mapdev_attr(info.vi_buffer, vesa_adp_info->v_memsize * 64 * 1024, PAT_WRITE_COMBINING); vesa_adp->va_window = vesa_adp->va_buffer; vesa_adp->va_window_size = info.vi_buffer_size / info.vi_planes; vesa_adp->va_window_gran = info.vi_buffer_size / info.vi_planes; } else { vesa_adp->va_buffer = 0; vesa_adp->va_window = (vm_offset_t)x86bios_offset(info.vi_window); vesa_adp->va_window_size = info.vi_window_size; vesa_adp->va_window_gran = info.vi_window_gran; } vesa_adp->va_buffer_size = info.vi_buffer_size; vesa_adp->va_window_orig = 0; vesa_adp->va_disp_start.x = 0; vesa_adp->va_disp_start.y = 0; #if VESA_DEBUG > 0 printf("vesa_set_mode(): vi_width:%d, line_width:%d\n", info.vi_width, vesa_adp->va_line_width); #endif bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info)); /* move hardware cursor out of the way */ (*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1); return (0); } static int vesa_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, u_char *data, int ch, int count) { return ((*prevvidsw->save_font)(adp, page, fontsize, fontwidth, data, ch, count)); } static int vesa_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, u_char *data, int ch, int count) { return ((*prevvidsw->load_font)(adp, page, fontsize, fontwidth, data, ch, count)); } static int vesa_show_font(video_adapter_t *adp, int page) { return ((*prevvidsw->show_font)(adp, page)); } static int vesa_save_palette(video_adapter_t *adp, u_char *palette) { int bits; if (adp == vesa_adp && VESA_MODE(adp->va_mode)) { bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6; if (vesa_bios_save_palette(0, 256, palette, bits) == 0) return (0); } return ((*prevvidsw->save_palette)(adp, palette)); } static int vesa_load_palette(video_adapter_t *adp, u_char *palette) { int bits; if (adp == vesa_adp && VESA_MODE(adp->va_mode)) { bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6; if (vesa_bios_load_palette(0, 256, palette, bits) == 0) return (0); } return ((*prevvidsw->load_palette)(adp, palette)); } static int vesa_set_border(video_adapter_t *adp, int color) { return ((*prevvidsw->set_border)(adp, color)); } static int vesa_save_state(video_adapter_t *adp, void *p, size_t size) { vm_offset_t buf; size_t bsize; if (adp != vesa_adp || vesa_state_buf_size == 0) return ((*prevvidsw->save_state)(adp, p, size)); if (size == 0) return (offsetof(adp_state_t, regs) + vesa_state_buf_size); if (size < (offsetof(adp_state_t, regs) + vesa_state_buf_size)) return (EINVAL); buf = adp->va_buffer; if (buf != 0) { bsize = adp->va_buffer_size; vesa_vmem_buf = malloc(bsize, M_DEVBUF, M_NOWAIT); if (vesa_vmem_buf != NULL) bcopy((void *)buf, vesa_vmem_buf, bsize); } else vesa_vmem_buf = NULL; ((adp_state_t *)p)->sig = V_STATE_SIG; bzero(((adp_state_t *)p)->regs, vesa_state_buf_size); return (vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs)); } static int vesa_load_state(video_adapter_t *adp, void *p) { vm_offset_t buf; size_t bsize; int mode; if (adp != vesa_adp) return ((*prevvidsw->load_state)(adp, p)); /* Try BIOS POST to restore a sane state. */ (void)vesa_bios_post(); bsize = adp->va_buffer_size; mode = adp->va_mode; (void)vesa_set_mode(adp, adp->va_initial_mode); if (mode != adp->va_initial_mode) (void)vesa_set_mode(adp, mode); if (((adp_state_t *)p)->sig != V_STATE_SIG) return ((*prevvidsw->load_state)(adp, p)); if (vesa_vmem_buf != NULL) { buf = adp->va_buffer; if (buf != 0) bcopy(vesa_vmem_buf, (void *)buf, bsize); free(vesa_vmem_buf, M_DEVBUF); } return (vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs)); } #if 0 static int vesa_get_origin(video_adapter_t *adp, off_t *offset) { x86regs_t regs; x86bios_init_regs(®s); regs.R_AX = 0x4f05; regs.R_BL = 0x10; x86bios_intr(®s, 0x10); if (regs.R_AX != 0x004f) return (1); *offset = regs.DX * adp->va_window_gran; return (0); } #endif static int vesa_set_origin(video_adapter_t *adp, off_t offset) { x86regs_t regs; /* * This function should return as quickly as possible to * maintain good performance of the system. For this reason, * error checking is kept minimal and let the VESA BIOS to * detect error. */ if (adp != vesa_adp) return ((*prevvidsw->set_win_org)(adp, offset)); /* if this is a linear frame buffer, do nothing */ if (adp->va_info.vi_flags & V_INFO_LINEAR) return (0); /* XXX */ if (adp->va_window_gran == 0) return (1); x86bios_init_regs(®s); regs.R_AX = 0x4f05; regs.R_DX = offset / adp->va_window_gran; x86bios_intr(®s, 0x10); if (regs.R_AX != 0x004f) return (1); x86bios_init_regs(®s); regs.R_AX = 0x4f05; regs.R_BL = 1; regs.R_DX = offset / adp->va_window_gran; x86bios_intr(®s, 0x10); adp->va_window_orig = (offset/adp->va_window_gran)*adp->va_window_gran; return (0); /* XXX */ } static int vesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row) { return ((*prevvidsw->read_hw_cursor)(adp, col, row)); } static int vesa_set_hw_cursor(video_adapter_t *adp, int col, int row) { return ((*prevvidsw->set_hw_cursor)(adp, col, row)); } static int vesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, int celsize, int blink) { return ((*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize, blink)); } static int vesa_blank_display(video_adapter_t *adp, int mode) { /* XXX: use VESA DPMS */ return ((*prevvidsw->blank_display)(adp, mode)); } static int vesa_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr, int prot, vm_memattr_t *memattr) { #if VESA_DEBUG > 0 printf("vesa_mmap(): window:0x%tx, buffer:0x%tx, offset:0x%jx\n", adp->va_info.vi_window, adp->va_info.vi_buffer, offset); #endif if ((adp == vesa_adp) && (adp->va_info.vi_flags & V_INFO_LINEAR) != 0) { /* va_window_size == va_buffer_size/vi_planes */ /* XXX: is this correct? */ if (offset > adp->va_window_size - PAGE_SIZE) return (-1); *paddr = adp->va_info.vi_buffer + offset; return (0); } return ((*prevvidsw->mmap)(adp, offset, paddr, prot, memattr)); } static int vesa_clear(video_adapter_t *adp) { return ((*prevvidsw->clear)(adp)); } static int vesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) { return ((*prevvidsw->fill_rect)(adp, val, x, y, cx, cy)); } static int vesa_bitblt(video_adapter_t *adp,...) { /* FIXME */ return (1); } static int get_palette(video_adapter_t *adp, int base, int count, u_char *red, u_char *green, u_char *blue, u_char *trans) { u_char *r; u_char *g; u_char *b; int bits; int error; if (base < 0 || base >= 256 || count < 0 || count > 256) return (1); if ((base + count) > 256) return (1); if (!VESA_MODE(adp->va_mode)) return (1); bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6; r = malloc(count * 3, M_DEVBUF, M_WAITOK); g = r + count; b = g + count; error = vesa_bios_save_palette2(base, count, r, g, b, bits); if (error == 0) { copyout(r, red, count); copyout(g, green, count); copyout(b, blue, count); if (trans != NULL) { bzero(r, count); copyout(r, trans, count); } } free(r, M_DEVBUF); return (error); } static int set_palette(video_adapter_t *adp, int base, int count, u_char *red, u_char *green, u_char *blue, u_char *trans) { u_char *r; u_char *g; u_char *b; int bits; int error; if (base < 0 || base >= 256 || count < 0 || count > 256) return (1); if ((base + count) > 256) return (1); if (!VESA_MODE(adp->va_mode)) return (1); bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6; r = malloc(count * 3, M_DEVBUF, M_WAITOK); g = r + count; b = g + count; copyin(red, r, count); copyin(green, g, count); copyin(blue, b, count); error = vesa_bios_load_palette2(base, count, r, g, b, bits); free(r, M_DEVBUF); return (error); } static int vesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) { int bytes; if (adp != vesa_adp) return ((*prevvidsw->ioctl)(adp, cmd, arg)); switch (cmd) { case FBIO_SETWINORG: /* set frame buffer window origin */ if (!VESA_MODE(adp->va_mode)) return (*prevvidsw->ioctl)(adp, cmd, arg); return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0); case FBIO_SETDISPSTART: /* set display start address */ if (!VESA_MODE(adp->va_mode)) return ((*prevvidsw->ioctl)(adp, cmd, arg)); if (vesa_bios_set_start(((video_display_start_t *)arg)->x, ((video_display_start_t *)arg)->y)) return (ENODEV); adp->va_disp_start.x = ((video_display_start_t *)arg)->x; adp->va_disp_start.y = ((video_display_start_t *)arg)->y; return (0); case FBIO_SETLINEWIDTH: /* set line length in pixel */ if (!VESA_MODE(adp->va_mode)) return ((*prevvidsw->ioctl)(adp, cmd, arg)); if (vesa_bios_set_line_length(*(u_int *)arg, &bytes, NULL)) return (ENODEV); adp->va_line_width = bytes; #if VESA_DEBUG > 1 printf("new line width:%d\n", adp->va_line_width); #endif return (0); case FBIO_GETPALETTE: /* get color palette */ if (get_palette(adp, ((video_color_palette_t *)arg)->index, ((video_color_palette_t *)arg)->count, ((video_color_palette_t *)arg)->red, ((video_color_palette_t *)arg)->green, ((video_color_palette_t *)arg)->blue, ((video_color_palette_t *)arg)->transparent)) return ((*prevvidsw->ioctl)(adp, cmd, arg)); return (0); case FBIO_SETPALETTE: /* set color palette */ if (set_palette(adp, ((video_color_palette_t *)arg)->index, ((video_color_palette_t *)arg)->count, ((video_color_palette_t *)arg)->red, ((video_color_palette_t *)arg)->green, ((video_color_palette_t *)arg)->blue, ((video_color_palette_t *)arg)->transparent)) return ((*prevvidsw->ioctl)(adp, cmd, arg)); return (0); case FBIOGETCMAP: /* get color palette */ if (get_palette(adp, ((struct fbcmap *)arg)->index, ((struct fbcmap *)arg)->count, ((struct fbcmap *)arg)->red, ((struct fbcmap *)arg)->green, ((struct fbcmap *)arg)->blue, NULL)) return ((*prevvidsw->ioctl)(adp, cmd, arg)); return (0); case FBIOPUTCMAP: /* set color palette */ if (set_palette(adp, ((struct fbcmap *)arg)->index, ((struct fbcmap *)arg)->count, ((struct fbcmap *)arg)->red, ((struct fbcmap *)arg)->green, ((struct fbcmap *)arg)->blue, NULL)) return ((*prevvidsw->ioctl)(adp, cmd, arg)); return (0); default: return ((*prevvidsw->ioctl)(adp, cmd, arg)); } } static int vesa_diag(video_adapter_t *adp, int level) { int error; /* call the previous handler first */ error = (*prevvidsw->diag)(adp, level); if (error) return (error); if (adp != vesa_adp) return (1); if (level <= 0) return (0); return (0); } static int vesa_bios_info(int level) { #if VESA_DEBUG > 1 struct vesa_mode vmode; int i; #endif uint16_t vers; vers = vesa_adp_info->v_version; if (bootverbose) { /* general adapter information */ printf( "VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (%x)\n", (vers >> 12) * 10 + ((vers & 0x0f00) >> 8), ((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f), vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags, vesa_vmodetab, vesa_adp_info->v_modetable); /* OEM string */ if (vesa_oemstr != NULL) printf("VESA: %s\n", vesa_oemstr); } if (level <= 0) return (0); if (vers >= 0x0200 && bootverbose) { /* vender name, product name, product revision */ printf("VESA: %s %s %s\n", (vesa_venderstr != NULL) ? vesa_venderstr : "unknown", (vesa_prodstr != NULL) ? vesa_prodstr : "unknown", (vesa_revstr != NULL) ? vesa_revstr : "?"); } #if VESA_DEBUG > 1 /* mode information */ for (i = 0; (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) && (vesa_vmodetab[i] != 0xffff); ++i) { if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode, M_NOWAIT)) continue; /* print something for diagnostic purpose */ printf("VESA: mode:0x%03x, flags:0x%04x", vesa_vmodetab[i], vmode.v_modeattr); if (vmode.v_modeattr & V_MODEOPTINFO) { if (vmode.v_modeattr & V_MODEGRAPHICS) { printf(", G %dx%dx%d %d, ", vmode.v_width, vmode.v_height, vmode.v_bpp, vmode.v_planes); } else { printf(", T %dx%d, ", vmode.v_width, vmode.v_height); } printf("font:%dx%d, ", vmode.v_cwidth, vmode.v_cheight); printf("pages:%d, mem:%d", vmode.v_ipages + 1, vmode.v_memmodel); } if (vmode.v_modeattr & V_MODELFB) { printf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x", vmode.v_lfb, vmode.v_offscreen, vmode.v_offscreensize*1024); } printf("\n"); printf("VESA: window A:0x%x (%x), window B:0x%x (%x), ", vmode.v_waseg, vmode.v_waattr, vmode.v_wbseg, vmode.v_wbattr); printf("size:%dk, gran:%dk\n", vmode.v_wsize, vmode.v_wgran); } #endif /* VESA_DEBUG > 1 */ return (0); } /* module loading */ static int vesa_load(void) { int error; if (vesa_init_done) return (0); mtx_init(&vesa_lock, "VESA lock", NULL, MTX_DEF); /* locate a VGA adapter */ vesa_adp = NULL; error = vesa_configure(0); if (error == 0) vesa_bios_info(bootverbose); return (error); } static int vesa_unload(void) { u_char palette[256*3]; int error; /* if the adapter is currently in a VESA mode, don't unload */ if ((vesa_adp != NULL) && VESA_MODE(vesa_adp->va_mode)) return (EBUSY); /* * FIXME: if there is at least one vty which is in a VESA mode, * we shouldn't be unloading! XXX */ if ((error = vesa_unload_ioctl()) == 0) { if (vesa_adp != NULL) { if ((vesa_adp->va_flags & V_ADP_DAC8) != 0) { vesa_bios_save_palette(0, 256, palette, 8); vesa_bios_set_dac(6); vesa_adp->va_flags &= ~V_ADP_DAC8; vesa_bios_load_palette(0, 256, palette, 6); } vesa_adp->va_flags &= ~V_ADP_VESA; vidsw[vesa_adp->va_index] = prevvidsw; } } vesa_bios_uninit(); mtx_destroy(&vesa_lock); return (error); } static int vesa_mod_event(module_t mod, int type, void *data) { switch (type) { case MOD_LOAD: return (vesa_load()); case MOD_UNLOAD: return (vesa_unload()); } return (EOPNOTSUPP); } static moduledata_t vesa_mod = { "vesa", vesa_mod_event, NULL, }; DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); MODULE_DEPEND(vesa, x86bios, 1, 1, 1); #endif /* VGA_NO_MODE_CHANGE */