566 lines
14 KiB
C
566 lines
14 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2000 Alcove - Nicolas Souchu <nsouch@freebsd.org>
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* All rights reserved.
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*
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* Code based on Peter Horton <pdh@colonel-panic.com> patch.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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/* Enable LFB on S3 cards that has only VESA 1.2 BIOS */
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <machine/bus.h>
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#include <vm/vm.h>
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#include <vm/vm_extern.h>
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#include <vm/vm_kern.h>
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#include <vm/pmap.h>
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#include <sys/uio.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <sys/malloc.h>
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#include <sys/fbio.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <machine/md_var.h>
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#include <machine/pc/bios.h>
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#include <dev/fb/vesa.h>
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#include <dev/fb/fbreg.h>
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#include <dev/fb/vgareg.h>
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#define S3PCI_DEBUG 1
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#define PCI_S3_VENDOR_ID 0x5333
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#define S3_CONFIG_IO 0x3c0 /* VGA standard config io ports */
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#define S3_CONFIG_IO_SIZE 0x20
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#define S3_ENHANCED_IO 0x4ae8 /* Extended config register */
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#define S3_ENHANCED_IO_SIZE 1
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#define S3_CRTC_ADDR 0x14
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#define S3_CRTC_VALUE 0x15
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#define PCI_BASE_MEMORY 0x10
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#define outb_p(value, offset) bus_space_write_1(sc->st, sc->sh, offset, value)
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#define inb_p(offset) (bus_space_read_1(sc->st, sc->sh, offset))
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#define outb_enh(value, offset) bus_space_write_1(sc->enh_st, sc->enh_sh, \
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offset, value)
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#define inb_enh(offset) (bus_space_read_1(sc->enh_st, sc->enh_sh, offset))
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struct s3pci_softc {
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bus_space_tag_t st;
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bus_space_handle_t sh;
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bus_space_tag_t enh_st;
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bus_space_handle_t enh_sh;
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struct resource *port_res;
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struct resource *enh_res;
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struct resource *mem_res;
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u_long mem_base;
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u_long mem_size;
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};
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static int s3lfb_error(void);
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static vi_probe_t s3lfb_probe;
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static vi_init_t s3lfb_init;
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static vi_get_info_t s3lfb_get_info;
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static vi_query_mode_t s3lfb_query_mode;
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static vi_set_mode_t s3lfb_set_mode;
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static vi_save_font_t s3lfb_save_font;
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static vi_load_font_t s3lfb_load_font;
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static vi_show_font_t s3lfb_show_font;
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static vi_save_palette_t s3lfb_save_palette;
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static vi_load_palette_t s3lfb_load_palette;
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static vi_set_border_t s3lfb_set_border;
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static vi_save_state_t s3lfb_save_state;
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static vi_load_state_t s3lfb_load_state;
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static vi_set_win_org_t s3lfb_set_origin;
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static vi_read_hw_cursor_t s3lfb_read_hw_cursor;
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static vi_set_hw_cursor_t s3lfb_set_hw_cursor;
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static vi_set_hw_cursor_shape_t s3lfb_set_hw_cursor_shape;
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static vi_blank_display_t s3lfb_blank_display;
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static vi_mmap_t s3lfb_mmap;
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static vi_ioctl_t s3lfb_ioctl;
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static vi_clear_t s3lfb_clear;
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static vi_fill_rect_t s3lfb_fill_rect;
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static vi_bitblt_t s3lfb_bitblt;
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static vi_diag_t s3lfb_diag;
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static video_switch_t s3lfbvidsw = {
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s3lfb_probe,
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s3lfb_init,
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s3lfb_get_info,
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s3lfb_query_mode,
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s3lfb_set_mode,
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s3lfb_save_font,
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s3lfb_load_font,
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s3lfb_show_font,
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s3lfb_save_palette,
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s3lfb_load_palette,
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s3lfb_set_border,
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s3lfb_save_state,
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s3lfb_load_state,
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s3lfb_set_origin,
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s3lfb_read_hw_cursor,
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s3lfb_set_hw_cursor,
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s3lfb_set_hw_cursor_shape,
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s3lfb_blank_display,
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s3lfb_mmap,
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s3lfb_ioctl,
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s3lfb_clear,
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s3lfb_fill_rect,
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s3lfb_bitblt,
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s3lfb_error,
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s3lfb_error,
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s3lfb_diag,
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};
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static video_switch_t *prevvidsw;
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static device_t s3pci_dev = NULL;
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static int
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s3lfb_probe(int unit, video_adapter_t **adpp, void *arg, int flags)
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{
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return (*prevvidsw->probe)(unit, adpp, arg, flags);
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}
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static int
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s3lfb_init(int unit, video_adapter_t *adp, int flags)
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{
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return (*prevvidsw->init)(unit, adp, flags);
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}
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static int
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s3lfb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
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{
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#if 0
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device_t dev = s3pci_dev; /* XXX */
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struct s3pci_softc *sc = (struct s3pci_softc *)device_get_softc(dev);
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#endif
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int error;
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if ((error = (*prevvidsw->get_info)(adp, mode, info)))
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return error;
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#if 0
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/* Don't use linear addressing with text modes
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*/
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if ((mode > M_VESA_BASE) &&
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(info->vi_flags & V_INFO_GRAPHICS) &&
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!(info->vi_flags & V_INFO_LINEAR)) {
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info->vi_flags |= V_INFO_LINEAR;
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info->vi_buffer = sc->mem_base;
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} else {
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info->vi_buffer = 0;
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}
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#endif
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return 0;
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}
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static int
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s3lfb_query_mode(video_adapter_t *adp, video_info_t *info)
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{
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return (*prevvidsw->query_mode)(adp, info);
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}
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static vm_offset_t
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s3lfb_map_buffer(u_int paddr, size_t size)
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{
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vm_offset_t vaddr;
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u_int off;
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off = paddr - trunc_page(paddr);
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vaddr = (vm_offset_t)pmap_mapdev(paddr - off, size + off);
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return (vaddr + off);
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}
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static int
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s3lfb_set_mode(video_adapter_t *adp, int mode)
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{
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device_t dev = s3pci_dev; /* XXX */
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struct s3pci_softc *sc = (struct s3pci_softc *)device_get_softc(dev);
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#if 0
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unsigned char tmp;
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#endif
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int error;
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/* First, set the mode as if it was a classic VESA card
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*/
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if ((error = (*prevvidsw->set_mode)(adp, mode)))
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return error;
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/* If not in a linear mode (according to s3lfb_get_info() called
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* by vesa_set_mode in the (*vidsw[adp->va_index]->get_info)...
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* sequence, return with no error
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*/
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#if 0
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if (!(adp->va_info.vi_flags & V_INFO_LINEAR))
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return 0;
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#endif
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if ((mode <= M_VESA_BASE) ||
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!(adp->va_info.vi_flags & V_INFO_GRAPHICS) ||
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(adp->va_info.vi_flags & V_INFO_LINEAR))
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return 0;
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/* Ok, now apply the configuration to the card */
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outb_p(0x38, S3_CRTC_ADDR); outb_p(0x48, S3_CRTC_VALUE);
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outb_p(0x39, S3_CRTC_ADDR); outb_p(0xa5, S3_CRTC_VALUE);
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/* check that CR47 is read/write */
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#if 0
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outb_p(0x47, S3_CRTC_ADDR); outb_p(0xff, S3_CRTC_VALUE);
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tmp = inb_p(S3_CRTC_VALUE);
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outb_p(0x00, S3_CRTC_VALUE);
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if ((tmp != 0xff) || (inb_p(S3_CRTC_VALUE)))
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{
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/* lock S3 registers */
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outb_p(0x39, S3_CRTC_ADDR); outb_p(0x5a, S3_CRTC_VALUE);
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outb_p(0x38, S3_CRTC_ADDR); outb_p(0x00, S3_CRTC_VALUE);
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return ENXIO;
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}
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#endif
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/* enable enhanced register access */
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outb_p(0x40, S3_CRTC_ADDR);
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outb_p(inb_p(S3_CRTC_VALUE) | 1, S3_CRTC_VALUE);
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/* enable enhanced functions */
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outb_enh(inb_enh(0) | 1, 0x0);
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/* enable enhanced mode memory mapping */
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outb_p(0x31, S3_CRTC_ADDR);
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outb_p(inb_p(S3_CRTC_VALUE) | 8, S3_CRTC_VALUE);
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/* enable linear frame buffer and set address window to max */
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outb_p(0x58, S3_CRTC_ADDR);
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outb_p(inb_p(S3_CRTC_VALUE) | 0x13, S3_CRTC_VALUE);
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/* disabled enhanced register access */
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outb_p(0x40, S3_CRTC_ADDR);
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outb_p(inb_p(S3_CRTC_VALUE) & ~1, S3_CRTC_VALUE);
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/* lock S3 registers */
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outb_p(0x39, S3_CRTC_ADDR); outb_p(0x5a, S3_CRTC_VALUE);
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outb_p(0x38, S3_CRTC_ADDR); outb_p(0x00, S3_CRTC_VALUE);
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adp->va_info.vi_flags |= V_INFO_LINEAR;
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adp->va_info.vi_buffer = sc->mem_base;
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adp->va_buffer = s3lfb_map_buffer(adp->va_info.vi_buffer,
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adp->va_info.vi_buffer_size);
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adp->va_buffer_size = adp->va_info.vi_buffer_size;
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adp->va_window = adp->va_buffer;
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adp->va_window_size = adp->va_info.vi_buffer_size/adp->va_info.vi_planes;
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adp->va_window_gran = adp->va_info.vi_buffer_size/adp->va_info.vi_planes;
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return 0;
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}
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static int
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s3lfb_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
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u_char *data, int ch, int count)
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{
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return (*prevvidsw->save_font)(adp, page, fontsize, fontwidth, data,
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ch, count);
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}
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static int
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s3lfb_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
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u_char *data, int ch, int count)
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{
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return (*prevvidsw->load_font)(adp, page, fontsize, fontwidth, data,
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ch, count);
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}
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static int
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s3lfb_show_font(video_adapter_t *adp, int page)
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{
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return (*prevvidsw->show_font)(adp, page);
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}
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static int
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s3lfb_save_palette(video_adapter_t *adp, u_char *palette)
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{
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return (*prevvidsw->save_palette)(adp, palette);
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}
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static int
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s3lfb_load_palette(video_adapter_t *adp, u_char *palette)
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{
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return (*prevvidsw->load_palette)(adp, palette);
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}
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static int
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s3lfb_set_border(video_adapter_t *adp, int color)
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{
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return (*prevvidsw->set_border)(adp, color);
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}
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static int
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s3lfb_save_state(video_adapter_t *adp, void *p, size_t size)
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{
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return (*prevvidsw->save_state)(adp, p, size);
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}
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static int
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s3lfb_load_state(video_adapter_t *adp, void *p)
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{
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return (*prevvidsw->load_state)(adp, p);
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}
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static int
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s3lfb_set_origin(video_adapter_t *adp, off_t offset)
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{
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return (*prevvidsw->set_win_org)(adp, offset);
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}
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static int
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s3lfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
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{
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return (*prevvidsw->read_hw_cursor)(adp, col, row);
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}
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static int
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s3lfb_set_hw_cursor(video_adapter_t *adp, int col, int row)
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{
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return (*prevvidsw->set_hw_cursor)(adp, col, row);
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}
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static int
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s3lfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
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int celsize, int blink)
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{
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return (*prevvidsw->set_hw_cursor_shape)(adp, base, height,
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celsize, blink);
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}
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static int
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s3lfb_blank_display(video_adapter_t *adp, int mode)
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{
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return (*prevvidsw->blank_display)(adp, mode);
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}
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static int
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s3lfb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
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int prot, vm_memattr_t *memattr)
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{
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return (*prevvidsw->mmap)(adp, offset, paddr, prot, memattr);
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}
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static int
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s3lfb_clear(video_adapter_t *adp)
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{
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return (*prevvidsw->clear)(adp);
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}
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static int
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s3lfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
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{
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return (*prevvidsw->fill_rect)(adp, val, x, y, cx, cy);
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}
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static int
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s3lfb_bitblt(video_adapter_t *adp,...)
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{
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return (*prevvidsw->bitblt)(adp); /* XXX */
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}
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static int
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s3lfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg)
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{
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return (*prevvidsw->ioctl)(adp, cmd, arg);
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}
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static int
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s3lfb_diag(video_adapter_t *adp, int level)
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{
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return (*prevvidsw->diag)(adp, level);
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}
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static int
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s3lfb_error(void)
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{
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return 1;
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}
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/***********************************/
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/* PCI detection/attachement stuff */
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/***********************************/
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static int
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s3pci_probe(device_t dev)
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{
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u_int32_t vendor, class, subclass, device_id;
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device_id = pci_get_devid(dev);
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vendor = device_id & 0xffff;
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class = pci_get_class(dev);
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subclass = pci_get_subclass(dev);
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if ((class != PCIC_DISPLAY) || (subclass != PCIS_DISPLAY_VGA) ||
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(vendor != PCI_S3_VENDOR_ID))
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return ENXIO;
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device_set_desc(dev, "S3 graphic card");
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bus_set_resource(dev, SYS_RES_IOPORT, 0,
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S3_CONFIG_IO, S3_CONFIG_IO_SIZE);
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bus_set_resource(dev, SYS_RES_IOPORT, 1,
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S3_ENHANCED_IO, S3_ENHANCED_IO_SIZE);
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return BUS_PROBE_DEFAULT;
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};
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static int
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s3pci_attach(device_t dev)
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{
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struct s3pci_softc* sc = (struct s3pci_softc*)device_get_softc(dev);
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video_adapter_t *adp;
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#if 0
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unsigned char tmp;
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#endif
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int rid, i;
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if (s3pci_dev) {
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printf("%s: driver already attached!\n", __func__);
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goto error;
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}
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/* Allocate resources
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*/
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rid = 0;
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if (!(sc->port_res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
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RF_ACTIVE | RF_SHAREABLE))) {
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printf("%s: port resource allocation failed!\n", __func__);
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goto error;
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}
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sc->st = rman_get_bustag(sc->port_res);
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sc->sh = rman_get_bushandle(sc->port_res);
|
|
|
|
rid = 1;
|
|
if (!(sc->enh_res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
|
|
RF_ACTIVE | RF_SHAREABLE))) {
|
|
printf("%s: enhanced port resource allocation failed!\n",
|
|
__func__);
|
|
goto error;
|
|
}
|
|
sc->enh_st = rman_get_bustag(sc->enh_res);
|
|
sc->enh_sh = rman_get_bushandle(sc->enh_res);
|
|
|
|
rid = PCI_BASE_MEMORY;
|
|
if (!(sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
|
|
RF_ACTIVE))) {
|
|
|
|
printf("%s: mem resource allocation failed!\n", __func__);
|
|
goto error;
|
|
}
|
|
|
|
/* The memory base address will be our LFB base address
|
|
*/
|
|
/* sc->mem_base = (u_long)rman_get_virtual(sc->mem_res); */
|
|
sc->mem_base = bus_get_resource_start(dev, SYS_RES_MEMORY, rid);
|
|
sc->mem_size = bus_get_resource_count(dev, SYS_RES_MEMORY, rid);
|
|
|
|
/* Attach the driver to the VGA/VESA framework
|
|
*/
|
|
for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) {
|
|
if (adp->va_type == KD_VGA)
|
|
break;
|
|
}
|
|
|
|
/* If the VESA module hasn't been loaded, or VGA doesn't
|
|
* exist, abort
|
|
*/
|
|
if ((adp == NULL) || !(adp->va_flags & V_ADP_VESA)) {
|
|
printf("%s: VGA adapter not found or VESA module not loaded!\n",
|
|
__func__);
|
|
goto error;
|
|
}
|
|
|
|
/* Replace the VESA video switch by owers
|
|
*/
|
|
prevvidsw = vidsw[adp->va_index];
|
|
vidsw[adp->va_index] = &s3lfbvidsw;
|
|
|
|
/* Remember who we are on the bus */
|
|
s3pci_dev = (void *)dev; /* XXX */
|
|
|
|
return 0;
|
|
|
|
error:
|
|
if (sc->mem_res)
|
|
bus_release_resource(dev, SYS_RES_MEMORY, PCI_BASE_MEMORY, sc->mem_res);
|
|
|
|
if (sc->enh_res)
|
|
bus_release_resource(dev, SYS_RES_IOPORT, 1, sc->enh_res);
|
|
|
|
if (sc->port_res)
|
|
bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port_res);
|
|
|
|
return ENXIO;
|
|
};
|
|
|
|
static device_method_t s3pci_methods[] = {
|
|
|
|
DEVMETHOD(device_probe, s3pci_probe),
|
|
DEVMETHOD(device_attach, s3pci_attach),
|
|
{0,0}
|
|
};
|
|
|
|
static driver_t s3pci_driver = {
|
|
"s3pci",
|
|
s3pci_methods,
|
|
sizeof(struct s3pci_softc),
|
|
};
|
|
|
|
DRIVER_MODULE(s3pci, pci, s3pci_driver, 0, 0);
|