FreeBSD-5.3/sys/dev/fb/s3_pci.c
/*-
* Copyright (c) 2000 Alcove - Nicolas Souchu <nsouch@freebsd.org>
* All rights reserved.
*
* Code based on Peter Horton <pdh@colonel-panic.com> patch.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/sys/dev/fb/s3_pci.c,v 1.7 2004/03/17 17:50:32 njl Exp $");
/* Enable LFB on S3 cards that has only VESA 1.2 BIOS */
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <machine/bus_pio.h>
#include <machine/bus_memio.h>
#include <machine/bus.h>
#include <vm/vm.h>
#include <vm/vm_extern.h>
#include <vm/vm_kern.h>
#include <vm/pmap.h>
#include <sys/uio.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <sys/malloc.h>
#include <sys/fbio.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <machine/md_var.h>
#include <machine/vm86.h>
#include <machine/pc/bios.h>
#include <machine/pc/vesa.h>
#include <dev/fb/fbreg.h>
#include <dev/fb/vgareg.h>
#define S3PCI_DEBUG 1
#define PCI_S3_VENDOR_ID 0x5333
#define S3_CONFIG_IO 0x3c0 /* VGA standard config io ports */
#define S3_CONFIG_IO_SIZE 0x20
#define S3_ENHANCED_IO 0x4ae8 /* Extended config register */
#define S3_ENHANCED_IO_SIZE 1
#define S3_CRTC_ADDR 0x14
#define S3_CRTC_VALUE 0x15
#define PCI_BASE_MEMORY 0x10
#define outb_p(value, offset) bus_space_write_1(sc->st, sc->sh, offset, value)
#define inb_p(offset) (bus_space_read_1(sc->st, sc->sh, offset))
#define outb_enh(value, offset) bus_space_write_1(sc->enh_st, sc->enh_sh, \
offset, value)
#define inb_enh(offset) (bus_space_read_1(sc->enh_st, sc->enh_sh, offset))
struct s3pci_softc {
bus_space_tag_t st;
bus_space_handle_t sh;
bus_space_tag_t enh_st;
bus_space_handle_t enh_sh;
struct resource *port_res;
struct resource *enh_res;
struct resource *mem_res;
u_long mem_base;
u_long mem_size;
};
static int s3lfb_error(void);
static vi_probe_t s3lfb_probe;
static vi_init_t s3lfb_init;
static vi_get_info_t s3lfb_get_info;
static vi_query_mode_t s3lfb_query_mode;
static vi_set_mode_t s3lfb_set_mode;
static vi_save_font_t s3lfb_save_font;
static vi_load_font_t s3lfb_load_font;
static vi_show_font_t s3lfb_show_font;
static vi_save_palette_t s3lfb_save_palette;
static vi_load_palette_t s3lfb_load_palette;
static vi_set_border_t s3lfb_set_border;
static vi_save_state_t s3lfb_save_state;
static vi_load_state_t s3lfb_load_state;
static vi_set_win_org_t s3lfb_set_origin;
static vi_read_hw_cursor_t s3lfb_read_hw_cursor;
static vi_set_hw_cursor_t s3lfb_set_hw_cursor;
static vi_set_hw_cursor_shape_t s3lfb_set_hw_cursor_shape;
static vi_blank_display_t s3lfb_blank_display;
static vi_mmap_t s3lfb_mmap;
static vi_ioctl_t s3lfb_ioctl;
static vi_clear_t s3lfb_clear;
static vi_fill_rect_t s3lfb_fill_rect;
static vi_bitblt_t s3lfb_bitblt;
static vi_diag_t s3lfb_diag;
static video_switch_t s3lfbvidsw = {
s3lfb_probe,
s3lfb_init,
s3lfb_get_info,
s3lfb_query_mode,
s3lfb_set_mode,
s3lfb_save_font,
s3lfb_load_font,
s3lfb_show_font,
s3lfb_save_palette,
s3lfb_load_palette,
s3lfb_set_border,
s3lfb_save_state,
s3lfb_load_state,
s3lfb_set_origin,
s3lfb_read_hw_cursor,
s3lfb_set_hw_cursor,
s3lfb_set_hw_cursor_shape,
s3lfb_blank_display,
s3lfb_mmap,
s3lfb_ioctl,
s3lfb_clear,
s3lfb_fill_rect,
s3lfb_bitblt,
s3lfb_error,
s3lfb_error,
s3lfb_diag,
};
static video_switch_t *prevvidsw;
static device_t s3pci_dev = NULL;
static int
s3lfb_probe(int unit, video_adapter_t **adpp, void *arg, int flags)
{
return (*prevvidsw->probe)(unit, adpp, arg, flags);
}
static int
s3lfb_init(int unit, video_adapter_t *adp, int flags)
{
return (*prevvidsw->init)(unit, adp, flags);
}
static int
s3lfb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
{
#if 0
device_t dev = s3pci_dev; /* XXX */
struct s3pci_softc *sc = (struct s3pci_softc *)device_get_softc(dev);
#endif
int error;
if ((error = (*prevvidsw->get_info)(adp, mode, info)))
return error;
#if 0
/* Don't use linear addressing with text modes
*/
if ((mode > M_VESA_BASE) &&
(info->vi_flags & V_INFO_GRAPHICS) &&
!(info->vi_flags & V_INFO_LINEAR)) {
info->vi_flags |= V_INFO_LINEAR;
info->vi_buffer = sc->mem_base;
} else {
info->vi_buffer = 0;
}
#endif
return 0;
}
static int
s3lfb_query_mode(video_adapter_t *adp, video_info_t *info)
{
return (*prevvidsw->query_mode)(adp, info);
}
static vm_offset_t
s3lfb_map_buffer(u_int paddr, size_t size)
{
vm_offset_t vaddr;
u_int off;
off = paddr - trunc_page(paddr);
vaddr = (vm_offset_t)pmap_mapdev(paddr - off, size + off);
return (vaddr + off);
}
static int
s3lfb_set_mode(video_adapter_t *adp, int mode)
{
device_t dev = s3pci_dev; /* XXX */
struct s3pci_softc *sc = (struct s3pci_softc *)device_get_softc(dev);
#if 0
unsigned char tmp;
#endif
int error;
/* First, set the mode as if it was a classic VESA card
*/
if ((error = (*prevvidsw->set_mode)(adp, mode)))
return error;
/* If not in a linear mode (according to s3lfb_get_info() called
* by vesa_set_mode in the (*vidsw[adp->va_index]->get_info)...
* sequence, return with no error
*/
#if 0
if (!(adp->va_info.vi_flags & V_INFO_LINEAR))
return 0;
#endif
if ((mode <= M_VESA_BASE) ||
!(adp->va_info.vi_flags & V_INFO_GRAPHICS) ||
(adp->va_info.vi_flags & V_INFO_LINEAR))
return 0;
/* Ok, now apply the configuration to the card */
outb_p(0x38, S3_CRTC_ADDR); outb_p(0x48, S3_CRTC_VALUE);
outb_p(0x39, S3_CRTC_ADDR); outb_p(0xa5, S3_CRTC_VALUE);
/* check that CR47 is read/write */
#if 0
outb_p(0x47, S3_CRTC_ADDR); outb_p(0xff, S3_CRTC_VALUE);
tmp = inb_p(S3_CRTC_VALUE);
outb_p(0x00, S3_CRTC_VALUE);
if ((tmp != 0xff) || (inb_p(S3_CRTC_VALUE)))
{
/* lock S3 registers */
outb_p(0x39, S3_CRTC_ADDR); outb_p(0x5a, S3_CRTC_VALUE);
outb_p(0x38, S3_CRTC_ADDR); outb_p(0x00, S3_CRTC_VALUE);
return ENXIO;
}
#endif
/* enable enhanced register access */
outb_p(0x40, S3_CRTC_ADDR);
outb_p(inb_p(S3_CRTC_VALUE) | 1, S3_CRTC_VALUE);
/* enable enhanced functions */
outb_enh(inb_enh(0) | 1, 0x0);
/* enable enhanced mode memory mapping */
outb_p(0x31, S3_CRTC_ADDR);
outb_p(inb_p(S3_CRTC_VALUE) | 8, S3_CRTC_VALUE);
/* enable linear frame buffer and set address window to max */
outb_p(0x58, S3_CRTC_ADDR);
outb_p(inb_p(S3_CRTC_VALUE) | 0x13, S3_CRTC_VALUE);
/* disabled enhanced register access */
outb_p(0x40, S3_CRTC_ADDR);
outb_p(inb_p(S3_CRTC_VALUE) & ~1, S3_CRTC_VALUE);
/* lock S3 registers */
outb_p(0x39, S3_CRTC_ADDR); outb_p(0x5a, S3_CRTC_VALUE);
outb_p(0x38, S3_CRTC_ADDR); outb_p(0x00, S3_CRTC_VALUE);
adp->va_info.vi_flags |= V_INFO_LINEAR;
adp->va_info.vi_buffer = sc->mem_base;
adp->va_buffer = s3lfb_map_buffer(adp->va_info.vi_buffer,
adp->va_info.vi_buffer_size);
adp->va_buffer_size = adp->va_info.vi_buffer_size;
adp->va_window = adp->va_buffer;
adp->va_window_size = adp->va_info.vi_buffer_size/adp->va_info.vi_planes;
adp->va_window_gran = adp->va_info.vi_buffer_size/adp->va_info.vi_planes;
return 0;
}
static int
s3lfb_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data,
int ch, int count)
{
return (*prevvidsw->save_font)(adp, page, fontsize, data, ch, count);
}
static int
s3lfb_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data,
int ch, int count)
{
return (*prevvidsw->load_font)(adp, page, fontsize, data, ch, count);
}
static int
s3lfb_show_font(video_adapter_t *adp, int page)
{
return (*prevvidsw->show_font)(adp, page);
}
static int
s3lfb_save_palette(video_adapter_t *adp, u_char *palette)
{
return (*prevvidsw->save_palette)(adp, palette);
}
static int
s3lfb_load_palette(video_adapter_t *adp, u_char *palette)
{
return (*prevvidsw->load_palette)(adp, palette);
}
static int
s3lfb_set_border(video_adapter_t *adp, int color)
{
return (*prevvidsw->set_border)(adp, color);
}
static int
s3lfb_save_state(video_adapter_t *adp, void *p, size_t size)
{
return (*prevvidsw->save_state)(adp, p, size);
}
static int
s3lfb_load_state(video_adapter_t *adp, void *p)
{
return (*prevvidsw->load_state)(adp, p);
}
static int
s3lfb_set_origin(video_adapter_t *adp, off_t offset)
{
return (*prevvidsw->set_win_org)(adp, offset);
}
static int
s3lfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
{
return (*prevvidsw->read_hw_cursor)(adp, col, row);
}
static int
s3lfb_set_hw_cursor(video_adapter_t *adp, int col, int row)
{
return (*prevvidsw->set_hw_cursor)(adp, col, row);
}
static int
s3lfb_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
s3lfb_blank_display(video_adapter_t *adp, int mode)
{
return (*prevvidsw->blank_display)(adp, mode);
}
static int
s3lfb_mmap(video_adapter_t *adp, vm_offset_t offset, vm_offset_t *paddr,
int prot)
{
return (*prevvidsw->mmap)(adp, offset, paddr, prot);
}
static int
s3lfb_clear(video_adapter_t *adp)
{
return (*prevvidsw->clear)(adp);
}
static int
s3lfb_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
s3lfb_bitblt(video_adapter_t *adp,...)
{
return (*prevvidsw->bitblt)(adp); /* XXX */
}
static int
s3lfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg)
{
return (*prevvidsw->ioctl)(adp, cmd, arg);
}
static int
s3lfb_diag(video_adapter_t *adp, int level)
{
return (*prevvidsw->diag)(adp, level);
}
static int
s3lfb_error(void)
{
return 1;
}
/***********************************/
/* PCI detection/attachement stuff */
/***********************************/
static int
s3pci_probe(device_t dev)
{
u_int32_t vendor, class, subclass, device_id;
device_id = pci_get_devid(dev);
vendor = device_id & 0xffff;
class = pci_get_class(dev);
subclass = pci_get_subclass(dev);
if ((class != PCIC_DISPLAY) || (subclass != PCIS_DISPLAY_VGA) ||
(vendor != PCI_S3_VENDOR_ID))
return ENXIO;
device_set_desc(dev, "S3 graphic card");
bus_set_resource(dev, SYS_RES_IOPORT, 0,
S3_CONFIG_IO, S3_CONFIG_IO_SIZE);
bus_set_resource(dev, SYS_RES_IOPORT, 1,
S3_ENHANCED_IO, S3_ENHANCED_IO_SIZE);
return 0;
};
static int
s3pci_attach(device_t dev)
{
struct s3pci_softc* sc = (struct s3pci_softc*)device_get_softc(dev);
video_adapter_t *adp;
#if 0
unsigned char tmp;
#endif
int rid, i;
if (s3pci_dev) {
printf("%s: driver already attached!\n", __func__);
goto error;
}
/* Allocate resources
*/
rid = 0;
if (!(sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
0ul, ~0ul, 0, RF_ACTIVE | RF_SHAREABLE))) {
printf("%s: port resource allocation failed!\n", __func__);
goto error;
}
sc->st = rman_get_bustag(sc->port_res);
sc->sh = rman_get_bushandle(sc->port_res);
rid = 1;
if (!(sc->enh_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
0ul, ~0ul, 0, 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),
};
static devclass_t s3pci_devclass;
DRIVER_MODULE(s3pci, pci, s3pci_driver, s3pci_devclass, 0, 0);