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freebsd-skq/sys/dev/fb/machfb.c

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/*-
* Copyright (c) 2002 Bang Jun-Young
* Copyright (c) 2005 Marius Strobl <marius@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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* from: NetBSD: machfb.c,v 1.23 2005/03/07 21:45:24 martin Exp
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* Driver for ATI Mach64 graphics chips. Some code is derived from the
* ATI Rage Pro and Derivatives Programmer's Guide.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/consio.h>
#include <sys/endian.h>
#include <sys/eventhandler.h>
#include <sys/fbio.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/resource.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/openfirm.h>
#include <machine/bus.h>
#include <machine/bus_private.h>
#include <machine/ofw_machdep.h>
#include <machine/pmap.h>
#include <machine/resource.h>
#include <machine/sc_machdep.h>
#include <sys/rman.h>
#include <dev/fb/fbreg.h>
#include <dev/fb/gfb.h>
#include <dev/fb/machfbreg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/syscons/syscons.h>
/* #define MACHFB_DEBUG */
#define MACHFB_DRIVER_NAME "machfb"
#define MACH64_REG_OFF 0x7ffc00
#define MACH64_REG_SIZE 1024
struct machfb_softc {
video_adapter_t sc_va; /* must be first */
phandle_t sc_node;
uint16_t sc_chip_id;
uint8_t sc_chip_rev;
struct resource *sc_memres;
struct resource *sc_vmemres;
bus_space_tag_t sc_memt;
bus_space_tag_t sc_regt;
bus_space_tag_t sc_vmemt;
bus_space_handle_t sc_memh;
bus_space_handle_t sc_vmemh;
bus_space_handle_t sc_regh;
u_long sc_mem;
u_long sc_vmem;
u_int sc_height;
u_int sc_width;
u_int sc_depth;
u_int sc_xmargin;
u_int sc_ymargin;
size_t sc_memsize;
u_int sc_memtype;
u_int sc_mem_freq;
u_int sc_ramdac_freq;
u_int sc_ref_freq;
u_int sc_ref_div;
u_int sc_mclk_post_div;
u_int sc_mclk_fb_div;
const u_char *sc_font;
u_int sc_cbwidth;
vm_offset_t sc_curoff;
int sc_bg_cache;
int sc_fg_cache;
u_int sc_draw_cache;
#define MACHFB_DRAW_CHAR (1 << 0)
#define MACHFB_DRAW_FILLRECT (1 << 1)
u_int sc_flags;
#define MACHFB_CONSOLE (1 << 0)
#define MACHFB_CUREN (1 << 1)
#define MACHFB_DSP (1 << 2)
#define MACHFB_SWAP (1 << 3)
};
static const struct {
uint16_t chip_id;
const char *name;
uint32_t ramdac_freq;
} machfb_info[] = {
{ ATI_MACH64_CT, "ATI Mach64 CT", 135000 },
{ ATI_RAGE_PRO_AGP, "ATI 3D Rage Pro (AGP)", 230000 },
{ ATI_RAGE_PRO_AGP1X, "ATI 3D Rage Pro (AGP 1x)", 230000 },
{ ATI_RAGE_PRO_PCI_B, "ATI 3D Rage Pro Turbo", 230000 },
{ ATI_RAGE_XC_PCI66, "ATI Rage XL (PCI66)", 230000 },
{ ATI_RAGE_XL_AGP, "ATI Rage XL (AGP)", 230000 },
{ ATI_RAGE_XC_AGP, "ATI Rage XC (AGP)", 230000 },
{ ATI_RAGE_XL_PCI66, "ATI Rage XL (PCI66)", 230000 },
{ ATI_RAGE_PRO_PCI_P, "ATI 3D Rage Pro", 230000 },
{ ATI_RAGE_PRO_PCI_L, "ATI 3D Rage Pro (limited 3D)", 230000 },
{ ATI_RAGE_XL_PCI, "ATI Rage XL", 230000 },
{ ATI_RAGE_XC_PCI, "ATI Rage XC", 230000 },
{ ATI_RAGE_II, "ATI 3D Rage I/II", 135000 },
{ ATI_RAGE_IIP, "ATI 3D Rage II+", 200000 },
{ ATI_RAGE_IIC_PCI, "ATI 3D Rage IIC", 230000 },
{ ATI_RAGE_IIC_AGP_B, "ATI 3D Rage IIC (AGP)", 230000 },
{ ATI_RAGE_IIC_AGP_P, "ATI 3D Rage IIC (AGP)", 230000 },
{ ATI_RAGE_LT_PRO_AGP, "ATI 3D Rage LT Pro (AGP 133MHz)", 230000 },
{ ATI_RAGE_MOB_M3_PCI, "ATI Rage Mobility M3", 230000 },
{ ATI_RAGE_MOB_M3_AGP, "ATI Rage Mobility M3 (AGP)", 230000 },
{ ATI_RAGE_LT, "ATI 3D Rage LT", 230000 },
{ ATI_RAGE_LT_PRO_PCI, "ATI 3D Rage LT Pro", 230000 },
{ ATI_RAGE_MOBILITY, "ATI Rage Mobility", 230000 },
{ ATI_RAGE_L_MOBILITY, "ATI Rage L Mobility", 230000 },
{ ATI_RAGE_LT_PRO, "ATI 3D Rage LT Pro", 230000 },
{ ATI_RAGE_LT_PRO2, "ATI 3D Rage LT Pro", 230000 },
{ ATI_RAGE_MOB_M1_PCI, "ATI Rage Mobility M1 (PCI)", 230000 },
{ ATI_RAGE_L_MOB_M1_PCI, "ATI Rage L Mobility (PCI)", 230000 },
{ ATI_MACH64_VT, "ATI Mach64 VT", 170000 },
{ ATI_MACH64_VTB, "ATI Mach64 VTB", 200000 },
{ ATI_MACH64_VT4, "ATI Mach64 VT4", 230000 }
};
static const struct machfb_cmap {
uint8_t red;
uint8_t green;
uint8_t blue;
} machfb_default_cmap[16] = {
{0x00, 0x00, 0x00}, /* black */
{0x00, 0x00, 0xff}, /* blue */
{0x00, 0xff, 0x00}, /* green */
{0x00, 0xc0, 0xc0}, /* cyan */
{0xff, 0x00, 0x00}, /* red */
{0xc0, 0x00, 0xc0}, /* magenta */
{0xc0, 0xc0, 0x00}, /* brown */
{0xc0, 0xc0, 0xc0}, /* light grey */
{0x80, 0x80, 0x80}, /* dark grey */
{0x80, 0x80, 0xff}, /* light blue */
{0x80, 0xff, 0x80}, /* light green */
{0x80, 0xff, 0xff}, /* light cyan */
{0xff, 0x80, 0x80}, /* light red */
{0xff, 0x80, 0xff}, /* light magenta */
{0xff, 0xff, 0x80}, /* yellow */
{0xff, 0xff, 0xff} /* white */
};
#define MACHFB_CMAP_OFF 16
static const u_char machfb_mouse_pointer_bits[64][8] = {
{ 0x00, 0x00, }, /* ............ */
{ 0x80, 0x00, }, /* *........... */
{ 0xc0, 0x00, }, /* **.......... */
{ 0xe0, 0x00, }, /* ***......... */
{ 0xf0, 0x00, }, /* ****........ */
{ 0xf8, 0x00, }, /* *****....... */
{ 0xfc, 0x00, }, /* ******...... */
{ 0xfe, 0x00, }, /* *******..... */
{ 0xff, 0x00, }, /* ********.... */
{ 0xff, 0x80, }, /* *********... */
{ 0xfc, 0xc0, }, /* ******..**.. */
{ 0xdc, 0x00, }, /* **.***...... */
{ 0x8e, 0x00, }, /* *...***..... */
{ 0x0e, 0x00, }, /* ....***..... */
{ 0x07, 0x00, }, /* .....***.... */
{ 0x04, 0x00, }, /* .....*...... */
{ 0x00, 0x00, }, /* ............ */
{ 0x00, 0x00, }, /* ............ */
{ 0x00, 0x00, }, /* ............ */
{ 0x00, 0x00, }, /* ............ */
{ 0x00, 0x00, }, /* ............ */
{ 0x00, 0x00, }, /* ............ */
};
/*
* Lookup table to perform a bit-swap of the mouse pointer bits,
* map set bits to CUR_CLR0 and unset bits to transparent.
*/
static const u_char machfb_mouse_pointer_lut[] = {
0xaa, 0x2a, 0x8a, 0x0a, 0xa2, 0x22, 0x82, 0x02,
0xa8, 0x28, 0x88, 0x08, 0xa0, 0x20, 0x80, 0x00
};
static const char *const machfb_memtype_names[] = {
"(N/A)", "DRAM", "EDO DRAM", "EDO DRAM", "SDRAM", "SGRAM", "WRAM",
"(unknown type)"
};
extern const struct gfb_font gallant12x22;
static struct machfb_softc machfb_softc;
static struct bus_space_tag machfb_bst_store[1];
static device_probe_t machfb_pci_probe;
static device_attach_t machfb_pci_attach;
static device_detach_t machfb_pci_detach;
static device_method_t machfb_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, machfb_pci_probe),
DEVMETHOD(device_attach, machfb_pci_attach),
DEVMETHOD(device_detach, machfb_pci_detach),
{ 0, 0 }
};
static driver_t machfb_pci_driver = {
MACHFB_DRIVER_NAME,
machfb_methods,
sizeof(struct machfb_softc),
};
static devclass_t machfb_devclass;
DRIVER_MODULE(machfb, pci, machfb_pci_driver, machfb_devclass, 0, 0);
MODULE_DEPEND(machfb, pci, 1, 1, 1);
static void machfb_cursor_enable(struct machfb_softc *, int);
static int machfb_cursor_install(struct machfb_softc *);
static int machfb_get_memsize(struct machfb_softc *);
static void machfb_reset_engine(struct machfb_softc *);
static void machfb_init_engine(struct machfb_softc *);
#if 0
static void machfb_adjust_frame(struct machfb_softc *, int, int);
#endif
static void machfb_shutdown_final(void *);
static void machfb_shutdown_reset(void *);
static int machfb_configure(int);
static vi_probe_t machfb_probe;
static vi_init_t machfb_init;
static vi_get_info_t machfb_get_info;
static vi_query_mode_t machfb_query_mode;
static vi_set_mode_t machfb_set_mode;
static vi_save_font_t machfb_save_font;
static vi_load_font_t machfb_load_font;
static vi_show_font_t machfb_show_font;
static vi_save_palette_t machfb_save_palette;
static vi_load_palette_t machfb_load_palette;
static vi_set_border_t machfb_set_border;
static vi_save_state_t machfb_save_state;
static vi_load_state_t machfb_load_state;
static vi_set_win_org_t machfb_set_win_org;
static vi_read_hw_cursor_t machfb_read_hw_cursor;
static vi_set_hw_cursor_t machfb_set_hw_cursor;
static vi_set_hw_cursor_shape_t machfb_set_hw_cursor_shape;
static vi_blank_display_t machfb_blank_display;
static vi_mmap_t machfb_mmap;
static vi_ioctl_t machfb_ioctl;
static vi_clear_t machfb_clear;
static vi_fill_rect_t machfb_fill_rect;
static vi_bitblt_t machfb_bitblt;
static vi_diag_t machfb_diag;
static vi_save_cursor_palette_t machfb_save_cursor_palette;
static vi_load_cursor_palette_t machfb_load_cursor_palette;
static vi_copy_t machfb_copy;
static vi_putp_t machfb_putp;
static vi_putc_t machfb_putc;
static vi_puts_t machfb_puts;
static vi_putm_t machfb_putm;
static video_switch_t machfbvidsw = {
.probe = machfb_probe,
.init = machfb_init,
.get_info = machfb_get_info,
.query_mode = machfb_query_mode,
.set_mode = machfb_set_mode,
.save_font = machfb_save_font,
.load_font = machfb_load_font,
.show_font = machfb_show_font,
.save_palette = machfb_save_palette,
.load_palette = machfb_load_palette,
.set_border = machfb_set_border,
.save_state = machfb_save_state,
.load_state = machfb_load_state,
.set_win_org = machfb_set_win_org,
.read_hw_cursor = machfb_read_hw_cursor,
.set_hw_cursor = machfb_set_hw_cursor,
.set_hw_cursor_shape = machfb_set_hw_cursor_shape,
.blank_display = machfb_blank_display,
.mmap = machfb_mmap,
.ioctl = machfb_ioctl,
.clear = machfb_clear,
.fill_rect = machfb_fill_rect,
.bitblt = machfb_bitblt,
.diag = machfb_diag,
.save_cursor_palette = machfb_save_cursor_palette,
.load_cursor_palette = machfb_load_cursor_palette,
.copy = machfb_copy,
.putp = machfb_putp,
.putc = machfb_putc,
.puts = machfb_puts,
.putm = machfb_putm
};
VIDEO_DRIVER(machfb, machfbvidsw, machfb_configure);
extern sc_rndr_sw_t txtrndrsw;
RENDERER(machfb, 0, txtrndrsw, gfb_set);
RENDERER_MODULE(machfb, gfb_set);
/*
* Inline functions for getting access to register aperture.
*/
static inline uint32_t regr(struct machfb_softc *, uint32_t);
static inline uint8_t regrb(struct machfb_softc *, uint32_t);
static inline void regw(struct machfb_softc *, uint32_t, uint32_t);
static inline void regwb(struct machfb_softc *, uint32_t, uint8_t);
static inline void regwb_pll(struct machfb_softc *, uint32_t, uint8_t);
static inline uint32_t
regr(struct machfb_softc *sc, uint32_t index)
{
return bus_space_read_4(sc->sc_regt, sc->sc_regh, index);
}
static inline uint8_t
regrb(struct machfb_softc *sc, uint32_t index)
{
return bus_space_read_1(sc->sc_regt, sc->sc_regh, index);
}
static inline void
regw(struct machfb_softc *sc, uint32_t index, uint32_t data)
{
bus_space_write_4(sc->sc_regt, sc->sc_regh, index, data);
bus_space_barrier(sc->sc_regt, sc->sc_regh, index, 4,
BUS_SPACE_BARRIER_WRITE);
}
static inline void
regwb(struct machfb_softc *sc, uint32_t index, uint8_t data)
{
bus_space_write_1(sc->sc_regt, sc->sc_regh, index, data);
bus_space_barrier(sc->sc_regt, sc->sc_regh, index, 1,
BUS_SPACE_BARRIER_WRITE);
}
static inline void
regwb_pll(struct machfb_softc *sc, uint32_t index, uint8_t data)
{
regwb(sc, CLOCK_CNTL + 1, (index << 2) | PLL_WR_EN);
regwb(sc, CLOCK_CNTL + 2, data);
regwb(sc, CLOCK_CNTL + 1, (index << 2) & ~PLL_WR_EN);
}
static inline void
wait_for_fifo(struct machfb_softc *sc, uint8_t v)
{
while ((regr(sc, FIFO_STAT) & 0xffff) > (0x8000 >> v))
;
}
static inline void
wait_for_idle(struct machfb_softc *sc)
{
wait_for_fifo(sc, 16);
while ((regr(sc, GUI_STAT) & 1) != 0)
;
}
/*
* Inline functions for setting the background and foreground colors.
*/
static inline void machfb_setbg(struct machfb_softc *sc, int bg);
static inline void machfb_setfg(struct machfb_softc *sc, int fg);
static inline void
machfb_setbg(struct machfb_softc *sc, int bg)
{
if (bg == sc->sc_bg_cache)
return;
sc->sc_bg_cache = bg;
wait_for_fifo(sc, 1);
regw(sc, DP_BKGD_CLR, bg + MACHFB_CMAP_OFF);
}
static inline void
machfb_setfg(struct machfb_softc *sc, int fg)
{
if (fg == sc->sc_fg_cache)
return;
sc->sc_fg_cache = fg;
wait_for_fifo(sc, 1);
regw(sc, DP_FRGD_CLR, fg + MACHFB_CMAP_OFF);
}
/*
* video driver interface
*/
static int
machfb_configure(int flags)
{
struct machfb_softc *sc;
phandle_t chosen, output;
ihandle_t stdout;
bus_addr_t addr;
uint32_t id;
int i, space;
/*
* For the high-level console probing return the number of
* registered adapters.
*/
if (!(flags & VIO_PROBE_ONLY)) {
for (i = 0; vid_find_adapter(MACHFB_DRIVER_NAME, i) >= 0; i++)
;
return (i);
}
/* Low-level console probing and initialization. */
sc = &machfb_softc;
if (sc->sc_va.va_flags & V_ADP_REGISTERED)
goto found;
if ((chosen = OF_finddevice("/chosen")) == -1) /* Quis contra nos? */
return (0);
if (OF_getprop(chosen, "stdout", &stdout, sizeof(stdout)) == -1)
return (0);
if ((output = OF_instance_to_package(stdout)) == -1)
return (0);
if ((OF_getprop(output, "vendor-id", &id, sizeof(id)) == -1) ||
id != ATI_VENDOR)
return (0);
if (OF_getprop(output, "device-id", &id, sizeof(id)) == -1)
return (0);
for (i = 0; i < sizeof(machfb_info) / sizeof(machfb_info[0]); i++) {
if (id == machfb_info[i].chip_id) {
sc->sc_flags = MACHFB_CONSOLE;
sc->sc_node = output;
sc->sc_chip_id = id;
break;
}
}
if (!(sc->sc_flags & MACHFB_CONSOLE))
return (0);
if (OF_getprop(output, "revision-id", &sc->sc_chip_rev,
sizeof(sc->sc_chip_rev)) == -1)
return (0);
if (OF_decode_addr(output, 0, &space, &addr) != 0)
return (0);
sc->sc_memt = &machfb_bst_store[0];
sc->sc_memh = sparc64_fake_bustag(space, addr, sc->sc_memt);
sc->sc_regt = sc->sc_memt;
bus_space_subregion(sc->sc_regt, sc->sc_memh, MACH64_REG_OFF,
MACH64_REG_SIZE, &sc->sc_regh);
if (machfb_init(0, &sc->sc_va, 0) < 0)
return (0);
found:
/* Return number of found adapters. */
return (1);
}
static int
machfb_probe(int unit, video_adapter_t **adpp, void *arg, int flags)
{
return (0);
}
static int
machfb_init(int unit, video_adapter_t *adp, int flags)
{
struct machfb_softc *sc;
phandle_t options;
video_info_t *vi;
char buf[32];
int i;
uint8_t dac_mask, dac_rindex, dac_windex;
sc = (struct machfb_softc *)adp;
vi = &adp->va_info;
if ((regr(sc, CONFIG_CHIP_ID) & 0xffff) != sc->sc_chip_id)
return (ENXIO);
sc->sc_ramdac_freq = 0;
for (i = 0; i < sizeof(machfb_info) / sizeof(machfb_info[0]); i++) {
if (sc->sc_chip_id == machfb_info[i].chip_id) {
sc->sc_ramdac_freq = machfb_info[i].ramdac_freq;
break;
}
}
if (sc->sc_ramdac_freq == 0)
return (ENXIO);
if (sc->sc_chip_id == ATI_RAGE_II && sc->sc_chip_rev & 0x07)
sc->sc_ramdac_freq = 170000;
vid_init_struct(adp, MACHFB_DRIVER_NAME, -1, unit);
if (OF_getprop(sc->sc_node, "height", &sc->sc_height,
sizeof(sc->sc_height)) == -1)
return (ENXIO);
if (OF_getprop(sc->sc_node, "width", &sc->sc_width,
sizeof(sc->sc_width)) == -1)
return (ENXIO);
if (OF_getprop(sc->sc_node, "depth", &sc->sc_depth,
sizeof(sc->sc_depth)) == -1)
return (ENXIO);
if ((options = OF_finddevice("/options")) == -1)
return (ENXIO);
if (OF_getprop(options, "screen-#rows", buf, sizeof(buf)) == -1)
return (ENXIO);
vi->vi_height = strtol(buf, NULL, 10);
if (OF_getprop(options, "screen-#columns", buf, sizeof(buf)) == -1)
return (ENXIO);
vi->vi_width = strtol(buf, NULL, 10);
vi->vi_cwidth = gallant12x22.width;
vi->vi_cheight = gallant12x22.height;
vi->vi_flags = V_INFO_COLOR;
vi->vi_mem_model = V_INFO_MM_OTHER;
sc->sc_font = gallant12x22.data;
sc->sc_cbwidth = howmany(vi->vi_cwidth, NBBY); /* width in bytes */
sc->sc_xmargin = (sc->sc_width - (vi->vi_width * vi->vi_cwidth)) / 2;
sc->sc_ymargin = (sc->sc_height - (vi->vi_height * vi->vi_cheight)) / 2;
if (sc->sc_chip_id != ATI_MACH64_CT &&
!((sc->sc_chip_id == ATI_MACH64_VT ||
sc->sc_chip_id == ATI_RAGE_II) &&
(sc->sc_chip_rev & 0x07) == 0))
sc->sc_flags |= MACHFB_DSP;
sc->sc_memsize = machfb_get_memsize(sc);
if (sc->sc_memsize == 8192)
/* The last page is used as register aperture. */
sc->sc_memsize -= 4;
sc->sc_memtype = regr(sc, CONFIG_STAT0) & 0x07;
if ((sc->sc_chip_id >= ATI_RAGE_XC_PCI66 &&
sc->sc_chip_id <= ATI_RAGE_XL_PCI66) ||
(sc->sc_chip_id >= ATI_RAGE_XL_PCI &&
sc->sc_chip_id <= ATI_RAGE_XC_PCI))
sc->sc_ref_freq = 29498;
else
sc->sc_ref_freq = 14318;
regwb(sc, CLOCK_CNTL + 1, PLL_REF_DIV << 2);
sc->sc_ref_div = regrb(sc, CLOCK_CNTL + 2);
regwb(sc, CLOCK_CNTL + 1, MCLK_FB_DIV << 2);
sc->sc_mclk_fb_div = regrb(sc, CLOCK_CNTL + 2);
sc->sc_mem_freq = (2 * sc->sc_ref_freq * sc->sc_mclk_fb_div) /
(sc->sc_ref_div * 2);
sc->sc_mclk_post_div = (sc->sc_mclk_fb_div * 2 * sc->sc_ref_freq) /
(sc->sc_mem_freq * sc->sc_ref_div);
machfb_init_engine(sc);
#if 0
machfb_adjust_frame(0, 0);
#endif
machfb_set_mode(adp, 0);
/*
* Install our 16-color color map. This is done only once and with
* an offset of 16 on sparc64 as there the OBP driver expects white
* to be at index 0 and black at 255 (some versions also use 1 - 8
* for color text support or the full palette for the boot banner
* logo but no versions seems to use the ISO 6429-1983 color map).
* Otherwise the colors are inverted when back in the OFW.
*/
dac_rindex = regrb(sc, DAC_RINDEX);
dac_windex = regrb(sc, DAC_WINDEX);
dac_mask = regrb(sc, DAC_MASK);
regwb(sc, DAC_MASK, 0xff);
regwb(sc, DAC_WINDEX, MACHFB_CMAP_OFF);
for (i = 0; i < 16; i++) {
regwb(sc, DAC_DATA, machfb_default_cmap[i].red);
regwb(sc, DAC_DATA, machfb_default_cmap[i].green);
regwb(sc, DAC_DATA, machfb_default_cmap[i].blue);
}
regwb(sc, DAC_MASK, dac_mask);
regwb(sc, DAC_RINDEX, dac_rindex);
regwb(sc, DAC_WINDEX, dac_windex);
machfb_blank_display(adp, V_DISPLAY_ON);
machfb_clear(adp);
/*
* Setting V_ADP_MODECHANGE serves as hack so machfb_set_mode()
* (which will invalidate our caches) is called as a precaution
* when the X server shuts down.
*/
adp->va_flags |= V_ADP_COLOR | V_ADP_MODECHANGE | V_ADP_PALETTE |
V_ADP_BORDER | V_ADP_INITIALIZED;
if (vid_register(adp) < 0)
return (ENXIO);
adp->va_flags |= V_ADP_REGISTERED;
return (0);
}
static int
machfb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
{
bcopy(&adp->va_info, info, sizeof(*info));
return (0);
}
static int
machfb_query_mode(video_adapter_t *adp, video_info_t *info)
{
return (ENODEV);
}
static int
machfb_set_mode(video_adapter_t *adp, int mode)
{
struct machfb_softc *sc;
sc = (struct machfb_softc *)adp;
sc->sc_bg_cache = -1;
sc->sc_fg_cache = -1;
sc->sc_draw_cache = 0;
return (0);
}
static int
machfb_save_font(video_adapter_t *adp, int page, int size, int width,
u_char *data, int c, int count)
{
return (ENODEV);
}
static int
machfb_load_font(video_adapter_t *adp, int page, int size, int width,
u_char *data, int c, int count)
{
return (ENODEV);
}
static int
machfb_show_font(video_adapter_t *adp, int page)
{
return (ENODEV);
}
static int
machfb_save_palette(video_adapter_t *adp, u_char *palette)
{
struct machfb_softc *sc;
int i;
uint8_t dac_mask, dac_rindex, dac_windex;
sc = (struct machfb_softc *)adp;
dac_rindex = regrb(sc, DAC_RINDEX);
dac_windex = regrb(sc, DAC_WINDEX);
dac_mask = regrb(sc, DAC_MASK);
regwb(sc, DAC_MASK, 0xff);
regwb(sc, DAC_RINDEX, 0x0);
for (i = 0; i < 256 * 3; i++)
palette[i] = regrb(sc, DAC_DATA);
regwb(sc, DAC_MASK, dac_mask);
regwb(sc, DAC_RINDEX, dac_rindex);
regwb(sc, DAC_WINDEX, dac_windex);
return (0);
}
static int
machfb_load_palette(video_adapter_t *adp, u_char *palette)
{
struct machfb_softc *sc;
int i;
uint8_t dac_mask, dac_rindex, dac_windex;
sc = (struct machfb_softc *)adp;
dac_rindex = regrb(sc, DAC_RINDEX);
dac_windex = regrb(sc, DAC_WINDEX);
dac_mask = regrb(sc, DAC_MASK);
regwb(sc, DAC_MASK, 0xff);
regwb(sc, DAC_WINDEX, 0x0);
for (i = 0; i < 256 * 3; i++)
regwb(sc, DAC_DATA, palette[i]);
regwb(sc, DAC_MASK, dac_mask);
regwb(sc, DAC_RINDEX, dac_rindex);
regwb(sc, DAC_WINDEX, dac_windex);
return (0);
}
static int
machfb_set_border(video_adapter_t *adp, int border)
{
struct machfb_softc *sc;
sc = (struct machfb_softc *)adp;
machfb_fill_rect(adp, border, 0, 0, sc->sc_width, sc->sc_ymargin);
machfb_fill_rect(adp, border, 0, sc->sc_height - sc->sc_ymargin,
sc->sc_width, sc->sc_ymargin);
machfb_fill_rect(adp, border, 0, 0, sc->sc_xmargin, sc->sc_height);
machfb_fill_rect(adp, border, sc->sc_width - sc->sc_xmargin, 0,
sc->sc_xmargin, sc->sc_height);
return (0);
}
static int
machfb_save_state(video_adapter_t *adp, void *p, size_t size)
{
return (ENODEV);
}
static int
machfb_load_state(video_adapter_t *adp, void *p)
{
return (ENODEV);
}
static int
machfb_set_win_org(video_adapter_t *adp, off_t offset)
{
return (ENODEV);
}
static int
machfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
{
*col = 0;
*row = 0;
return (0);
}
static int
machfb_set_hw_cursor(video_adapter_t *adp, int col, int row)
{
return (ENODEV);
}
static int
machfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
int celsize, int blink)
{
return (ENODEV);
}
static int
machfb_blank_display(video_adapter_t *adp, int mode)
{
struct machfb_softc *sc;
uint32_t crtc_gen_cntl;
sc = (struct machfb_softc *)adp;
crtc_gen_cntl = (regr(sc, CRTC_GEN_CNTL) | CRTC_EXT_DISP_EN | CRTC_EN) &
~(CRTC_HSYNC_DIS | CRTC_VSYNC_DIS | CRTC_DISPLAY_DIS);
switch (mode) {
case V_DISPLAY_ON:
break;
case V_DISPLAY_BLANK:
crtc_gen_cntl |= CRTC_HSYNC_DIS | CRTC_VSYNC_DIS |
CRTC_DISPLAY_DIS;
break;
case V_DISPLAY_STAND_BY:
crtc_gen_cntl |= CRTC_HSYNC_DIS | CRTC_DISPLAY_DIS;
break;
case V_DISPLAY_SUSPEND:
crtc_gen_cntl |= CRTC_VSYNC_DIS | CRTC_DISPLAY_DIS;
break;
}
regw(sc, CRTC_GEN_CNTL, crtc_gen_cntl);
return (0);
}
static int
machfb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
int prot, vm_memattr_t *memattr)
{
struct machfb_softc *sc;
video_info_t *vi;
sc = (struct machfb_softc *)adp;
vi = &adp->va_info;
/* BAR 2 - VGA memory */
if (sc->sc_vmem != 0 && offset >= sc->sc_vmem &&
offset < sc->sc_vmem + vi->vi_registers_size) {
*paddr = vi->vi_registers + offset - sc->sc_vmem;
return (0);
}
/* BAR 0 - framebuffer */
if (offset >= sc->sc_mem &&
offset < sc->sc_mem + vi->vi_buffer_size) {
*paddr = vi->vi_buffer + offset - sc->sc_mem;
return (0);
}
/* 'regular' framebuffer mmap()ing */
if (offset < adp->va_window_size) {
*paddr = vi->vi_window + offset;
return (0);
}
return (EINVAL);
}
static int
machfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
{
struct machfb_softc *sc;
struct fbcursor *fbc;
struct fbtype *fb;
sc = (struct machfb_softc *)adp;
switch (cmd) {
case FBIOGTYPE:
fb = (struct fbtype *)data;
fb->fb_type = FBTYPE_PCIMISC;
fb->fb_height = sc->sc_height;
fb->fb_width = sc->sc_width;
fb->fb_depth = sc->sc_depth;
if (sc->sc_depth <= 1 || sc->sc_depth > 8)
fb->fb_cmsize = 0;
else
fb->fb_cmsize = 1 << sc->sc_depth;
fb->fb_size = adp->va_buffer_size;
break;
case FBIOSCURSOR:
fbc = (struct fbcursor *)data;
if (fbc->set & FB_CUR_SETCUR && fbc->enable == 0) {
machfb_cursor_enable(sc, 0);
sc->sc_flags &= ~MACHFB_CUREN;
} else
return (ENODEV);
break;
default:
return (fb_commonioctl(adp, cmd, data));
}
return (0);
}
static int
machfb_clear(video_adapter_t *adp)
{
struct machfb_softc *sc;
sc = (struct machfb_softc *)adp;
machfb_fill_rect(adp, (SC_NORM_ATTR >> 4) & 0xf, 0, 0, sc->sc_width,
sc->sc_height);
return (0);
}
static int
machfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
{
struct machfb_softc *sc;
sc = (struct machfb_softc *)adp;
if (sc->sc_draw_cache != MACHFB_DRAW_FILLRECT) {
wait_for_fifo(sc, 7);
regw(sc, DP_WRITE_MASK, 0xff);
regw(sc, DP_PIX_WIDTH, DST_8BPP | SRC_8BPP | HOST_8BPP);
regw(sc, DP_SRC, FRGD_SRC_FRGD_CLR);
regw(sc, DP_MIX, MIX_SRC << 16);
regw(sc, CLR_CMP_CNTL, 0); /* no transparency */
regw(sc, SRC_CNTL, SRC_LINE_X_LEFT_TO_RIGHT);
regw(sc, DST_CNTL, DST_X_LEFT_TO_RIGHT | DST_Y_TOP_TO_BOTTOM);
sc->sc_draw_cache = MACHFB_DRAW_FILLRECT;
}
machfb_setfg(sc, val);
wait_for_fifo(sc, 4);
regw(sc, SRC_Y_X, (x << 16) | y);
regw(sc, SRC_WIDTH1, cx);
regw(sc, DST_Y_X, (x << 16) | y);
regw(sc, DST_HEIGHT_WIDTH, (cx << 16) | cy);
return (0);
}
static int
machfb_bitblt(video_adapter_t *adp, ...)
{
return (ENODEV);
}
static int
machfb_diag(video_adapter_t *adp, int level)
{
video_info_t info;
fb_dump_adp_info(adp->va_name, adp, level);
machfb_get_info(adp, 0, &info);
fb_dump_mode_info(adp->va_name, adp, &info, level);
return (0);
}
static int
machfb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
{
return (ENODEV);
}
static int
machfb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
{
return (ENODEV);
}
static int
machfb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
{
return (ENODEV);
}
static int
machfb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
int size, int bpp, int bit_ltor, int byte_ltor)
{
return (ENODEV);
}
static int
machfb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
{
struct machfb_softc *sc;
const uint8_t *p;
int i;
sc = (struct machfb_softc *)adp;
if (sc->sc_draw_cache != MACHFB_DRAW_CHAR) {
wait_for_fifo(sc, 8);
regw(sc, DP_WRITE_MASK, 0xff); /* XXX only good for 8 bit */
regw(sc, DP_PIX_WIDTH, DST_8BPP | SRC_1BPP | HOST_1BPP);
regw(sc, DP_SRC, MONO_SRC_HOST | BKGD_SRC_BKGD_CLR |
FRGD_SRC_FRGD_CLR);
regw(sc, DP_MIX ,((MIX_SRC & 0xffff) << 16) | MIX_SRC);
regw(sc, CLR_CMP_CNTL, 0); /* no transparency */
regw(sc, SRC_CNTL, SRC_LINE_X_LEFT_TO_RIGHT);
regw(sc, DST_CNTL, DST_Y_TOP_TO_BOTTOM | DST_X_LEFT_TO_RIGHT);
regw(sc, HOST_CNTL, HOST_BYTE_ALIGN);
sc->sc_draw_cache = MACHFB_DRAW_CHAR;
}
machfb_setbg(sc, (a >> 4) & 0xf);
machfb_setfg(sc, a & 0xf);
wait_for_fifo(sc, 4 + (adp->va_info.vi_cheight / sc->sc_cbwidth));
regw(sc, SRC_Y_X, 0);
regw(sc, SRC_WIDTH1, adp->va_info.vi_cwidth);
regw(sc, DST_Y_X, ((((off % adp->va_info.vi_width) *
adp->va_info.vi_cwidth) + sc->sc_xmargin) << 16) |
(((off / adp->va_info.vi_width) * adp->va_info.vi_cheight) +
sc->sc_ymargin));
regw(sc, DST_HEIGHT_WIDTH, (adp->va_info.vi_cwidth << 16) |
adp->va_info.vi_cheight);
p = sc->sc_font + (c * adp->va_info.vi_cheight * sc->sc_cbwidth);
for (i = 0; i < adp->va_info.vi_cheight * sc->sc_cbwidth; i += 4)
regw(sc, HOST_DATA0 + i, (p[i + 3] << 24 | p[i + 2] << 16 |
p[i + 1] << 8 | p[i]));
return (0);
}
static int
machfb_puts(video_adapter_t *adp, vm_offset_t off, uint16_t *s, int len)
{
struct machfb_softc *sc;
int blanks, i, x1, x2, y1, y2;
uint8_t a, c, color1, color2;
sc = (struct machfb_softc *)adp;
#define MACHFB_BLANK machfb_fill_rect(adp, color1, x1, y1, \
blanks * adp->va_info.vi_cwidth, \
adp->va_info.vi_cheight)
blanks = color1 = x1 = y1 = 0;
for (i = 0; i < len; i++) {
/*
* Accelerate continuous blanks by drawing a respective
* rectangle instead. Drawing a rectangle of any size
* takes about the same number of operations as drawing
* a single character.
*/
c = s[i] & 0xff;
a = (s[i] & 0xff00) >> 8;
if (c == 0x00 || c == 0x20 || c == 0xdb || c == 0xff) {
color2 = (a >> (c == 0xdb ? 0 : 4) & 0xf);
x2 = (((off + i) % adp->va_info.vi_width) *
adp->va_info.vi_cwidth) + sc->sc_xmargin;
y2 = (((off + i) / adp->va_info.vi_width) *
adp->va_info.vi_cheight) + sc->sc_ymargin;
if (blanks == 0) {
color1 = color2;
x1 = x2;
y1 = y2;
blanks++;
} else if (color1 != color2 || y1 != y2) {
MACHFB_BLANK;
color1 = color2;
x1 = x2;
y1 = y2;
blanks = 1;
} else
blanks++;
} else {
if (blanks != 0) {
MACHFB_BLANK;
blanks = 0;
}
vidd_putc(adp, off + i, c, a);
}
}
if (blanks != 0)
MACHFB_BLANK;
#undef MACHFB_BLANK
return (0);
}
static int
machfb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
uint32_t pixel_mask, int size, int width)
{
struct machfb_softc *sc;
int error;
sc = (struct machfb_softc *)adp;
if ((!(sc->sc_flags & MACHFB_CUREN)) &&
(error = machfb_cursor_install(sc)) < 0)
return (error);
else {
/*
* The hardware cursor always must be disabled when
* fiddling with its bits otherwise some artifacts
* may appear on the screen.
*/
machfb_cursor_enable(sc, 0);
}
regw(sc, CUR_HORZ_VERT_OFF, 0);
if ((regr(sc, GEN_TEST_CNTL) & CRTC_DBL_SCAN_EN) != 0)
y <<= 1;
regw(sc, CUR_HORZ_VERT_POSN, ((y + sc->sc_ymargin) << 16) |
(x + sc->sc_xmargin));
machfb_cursor_enable(sc, 1);
sc->sc_flags |= MACHFB_CUREN;
return (0);
}
/*
* PCI bus interface
*/
static int
machfb_pci_probe(device_t dev)
{
int i;
if (pci_get_class(dev) != PCIC_DISPLAY ||
pci_get_subclass(dev) != PCIS_DISPLAY_VGA)
return (ENXIO);
for (i = 0; i < sizeof(machfb_info) / sizeof(machfb_info[0]); i++) {
if (pci_get_device(dev) == machfb_info[i].chip_id) {
device_set_desc(dev, machfb_info[i].name);
return (BUS_PROBE_DEFAULT);
}
}
return (ENXIO);
}
static int
machfb_pci_attach(device_t dev)
{
struct machfb_softc *sc;
video_adapter_t *adp;
video_switch_t *sw;
video_info_t *vi;
phandle_t node;
int error, i, rid;
uint32_t *p32, u32;
uint8_t *p;
node = ofw_bus_get_node(dev);
if ((sc = (struct machfb_softc *)vid_get_adapter(vid_find_adapter(
MACHFB_DRIVER_NAME, 0))) != NULL && sc->sc_node == node) {
device_printf(dev, "console\n");
device_set_softc(dev, sc);
} else {
sc = device_get_softc(dev);
sc->sc_node = node;
sc->sc_chip_id = pci_get_device(dev);
sc->sc_chip_rev = pci_get_revid(dev);
}
adp = &sc->sc_va;
vi = &adp->va_info;
rid = PCIR_BAR(0);
if ((sc->sc_memres = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
RF_ACTIVE)) == NULL) {
device_printf(dev, "cannot allocate memory resources\n");
return (ENXIO);
}
sc->sc_memt = rman_get_bustag(sc->sc_memres);
sc->sc_memh = rman_get_bushandle(sc->sc_memres);
sc->sc_mem = rman_get_start(sc->sc_memres);
vi->vi_buffer = sc->sc_memh;
vi->vi_buffer_size = rman_get_size(sc->sc_memres);
if (OF_getprop(sc->sc_node, "address", &u32, sizeof(u32)) > 0 &&
vtophys(u32) == sc->sc_memh)
adp->va_mem_base = u32;
else {
if (bus_space_map(sc->sc_memt, vi->vi_buffer,
vi->vi_buffer_size, BUS_SPACE_MAP_LINEAR,
&sc->sc_memh) != 0) {
device_printf(dev, "cannot map memory resources\n");
error = ENXIO;
goto fail_memres;
}
adp->va_mem_base =
(vm_offset_t)rman_get_virtual(sc->sc_memres);
}
adp->va_mem_size = vi->vi_buffer_size;
adp->va_buffer = adp->va_mem_base;
adp->va_buffer_size = adp->va_mem_size;
sc->sc_regt = sc->sc_memt;
if (bus_space_subregion(sc->sc_regt, sc->sc_memh, MACH64_REG_OFF,
MACH64_REG_SIZE, &sc->sc_regh) != 0) {
device_printf(dev, "cannot allocate register resources\n");
error = ENXIO;
goto fail_memmap;
}
/*
* Depending on the firmware version the VGA I/O and/or memory
* resources of the Mach64 chips come up disabled. These will be
* enabled by pci(4) when activating the resource in question but
* this doesn't necessarily mean that the resource is valid.
* Invalid resources seem to have in common that they start at
* address 0. We don't allocate the VGA memory in this case in
* order to avoid warnings in apb(4) and crashes when using this
* invalid resources. X.Org is aware of this and doesn't use the
* VGA memory resource in this case (but demands it if it's valid).
*/
rid = PCIR_BAR(2);
if (bus_get_resource_start(dev, SYS_RES_MEMORY, rid) != 0) {
if ((sc->sc_vmemres = bus_alloc_resource_any(dev,
SYS_RES_MEMORY, &rid, RF_ACTIVE)) == NULL) {
device_printf(dev,
"cannot allocate VGA memory resources\n");
error = ENXIO;
goto fail_memmap;
}
sc->sc_vmemt = rman_get_bustag(sc->sc_vmemres);
sc->sc_vmemh = rman_get_bushandle(sc->sc_vmemres);
sc->sc_vmem = rman_get_start(sc->sc_vmemres);
vi->vi_registers = sc->sc_vmemh;
vi->vi_registers_size = rman_get_size(sc->sc_vmemres);
if (bus_space_map(sc->sc_vmemt, vi->vi_registers,
vi->vi_registers_size, BUS_SPACE_MAP_LINEAR,
&sc->sc_vmemh) != 0) {
device_printf(dev,
"cannot map VGA memory resources\n");
error = ENXIO;
goto fail_vmemres;
}
adp->va_registers =
(vm_offset_t)rman_get_virtual(sc->sc_vmemres);
adp->va_registers_size = vi->vi_registers_size;
}
if (!(sc->sc_flags & MACHFB_CONSOLE)) {
if ((sw = vid_get_switch(MACHFB_DRIVER_NAME)) == NULL) {
device_printf(dev, "cannot get video switch\n");
error = ENODEV;
goto fail_vmemmap;
}
/*
* During device configuration we don't necessarily probe
* the adapter which is the console first so we can't use
* the device unit number for the video adapter unit. The
* worst case would be that we use the video adapter unit
* 0 twice. As it doesn't really matter which unit number
* the corresponding video adapter has just use the next
* unused one.
*/
for (i = 0; i < devclass_get_maxunit(machfb_devclass); i++)
if (vid_find_adapter(MACHFB_DRIVER_NAME, i) < 0)
break;
if ((error = sw->init(i, adp, 0)) != 0) {
device_printf(dev, "cannot initialize adapter\n");
goto fail_vmemmap;
}
}
/*
* Test whether the aperture is byte swapped or not, set
* va_window and va_window_size as appropriate. Note that
* the aperture could be mapped either big or little endian
* independently of the endianess of the host so this has
* to be a runtime test.
*/
p32 = (uint32_t *)adp->va_buffer;
u32 = *p32;
p = (uint8_t *)adp->va_buffer;
*p32 = 0x12345678;
if (!(p[0] == 0x12 && p[1] == 0x34 && p[2] == 0x56 && p[3] == 0x78)) {
adp->va_window = adp->va_buffer + 0x800000;
adp->va_window_size = adp->va_buffer_size - 0x800000;
vi->vi_window = vi->vi_buffer + 0x800000;
vi->vi_window_size = vi->vi_buffer_size - 0x800000;
sc->sc_flags |= MACHFB_SWAP;
} else {
adp->va_window = adp->va_buffer;
adp->va_window_size = adp->va_buffer_size;
vi->vi_window = vi->vi_buffer;
vi->vi_window_size = vi->vi_buffer_size;
}
*p32 = u32;
adp->va_window_gran = adp->va_window_size;
device_printf(dev,
"%d MB aperture at %p %sswapped\n",
(u_int)(adp->va_window_size / (1024 * 1024)),
(void *)adp->va_window, (sc->sc_flags & MACHFB_SWAP) ?
"" : "not ");
device_printf(dev,
"%ld KB %s %d.%d MHz, maximum RAMDAC clock %d MHz, %sDSP\n",
(u_long)sc->sc_memsize, machfb_memtype_names[sc->sc_memtype],
sc->sc_mem_freq / 1000, sc->sc_mem_freq % 1000,
sc->sc_ramdac_freq / 1000,
(sc->sc_flags & MACHFB_DSP) ? "" : "no ");
device_printf(dev, "resolution %dx%d at %d bpp\n",
sc->sc_width, sc->sc_height, sc->sc_depth);
/*
* Allocate one page for the mouse pointer image at the end of
* the little endian aperture, right before the memory mapped
* registers that might also reside there. Must be done after
* sc_memsize was set and possibly adjusted to account for the
* memory mapped registers.
*/
sc->sc_curoff = (sc->sc_memsize * 1024) - PAGE_SIZE;
sc->sc_memsize -= PAGE_SIZE / 1024;
machfb_cursor_enable(sc, 0);
/* Initialize with an all transparent image. */
memset((void *)(adp->va_buffer + sc->sc_curoff), 0xaa, PAGE_SIZE);
/*
* Register a handler that performs some cosmetic surgery like
* turning off the mouse pointer on halt in preparation for
* handing the screen over to the OFW. Register another handler
* that turns off the CRTC when resetting, otherwise the OFW
* boot command issued by cpu_reset() just doesn't work.
*/
EVENTHANDLER_REGISTER(shutdown_final, machfb_shutdown_final, sc,
SHUTDOWN_PRI_DEFAULT);
EVENTHANDLER_REGISTER(shutdown_reset, machfb_shutdown_reset, sc,
SHUTDOWN_PRI_DEFAULT);
return (0);
fail_vmemmap:
if (adp->va_registers != 0)
bus_space_unmap(sc->sc_vmemt, sc->sc_vmemh,
vi->vi_registers_size);
fail_vmemres:
if (sc->sc_vmemres != NULL)
bus_release_resource(dev, SYS_RES_MEMORY,
rman_get_rid(sc->sc_vmemres), sc->sc_vmemres);
fail_memmap:
bus_space_unmap(sc->sc_memt, sc->sc_memh, vi->vi_buffer_size);
fail_memres:
bus_release_resource(dev, SYS_RES_MEMORY,
rman_get_rid(sc->sc_memres), sc->sc_memres);
return (error);
}
static int
machfb_pci_detach(device_t dev)
{
return (EINVAL);
}
/*
* internal functions
*/
static void
machfb_cursor_enable(struct machfb_softc *sc, int onoff)
{
if (onoff)
regw(sc, GEN_TEST_CNTL,
regr(sc, GEN_TEST_CNTL) | HWCURSOR_ENABLE);
else
regw(sc, GEN_TEST_CNTL,
regr(sc, GEN_TEST_CNTL) &~ HWCURSOR_ENABLE);
}
static int
machfb_cursor_install(struct machfb_softc *sc)
{
uint16_t *p, v;
uint8_t fg;
int i, j;
if (sc->sc_curoff == 0)
return (ENODEV);
machfb_cursor_enable(sc, 0);
regw(sc, CUR_OFFSET, sc->sc_curoff >> 3);
fg = SC_NORM_ATTR & 0xf;
regw(sc, CUR_CLR0, machfb_default_cmap[fg].red << 24 |
machfb_default_cmap[fg].green << 16 |
machfb_default_cmap[fg].blue << 8);
p = (uint16_t *)(sc->sc_va.va_buffer + sc->sc_curoff);
for (i = 0; i < 64; i++) {
for (j = 0; j < 8; j++) {
v = machfb_mouse_pointer_lut[
machfb_mouse_pointer_bits[i][j] >> 4] << 8 |
machfb_mouse_pointer_lut[
machfb_mouse_pointer_bits[i][j] & 0x0f];
if (sc->sc_flags & MACHFB_SWAP)
*(p++) = bswap16(v);
else
*(p++) = v;
}
}
return (0);
}
static int
machfb_get_memsize(struct machfb_softc *sc)
{
int tmp, memsize;
const int mem_tab[] = {
512, 1024, 2048, 4096, 6144, 8192, 12288, 16384
};
tmp = regr(sc, MEM_CNTL);
#ifdef MACHFB_DEBUG
printf("memcntl=0x%08x\n", tmp);
#endif
if (sc->sc_flags & MACHFB_DSP) {
tmp &= 0x0000000f;
if (tmp < 8)
memsize = (tmp + 1) * 512;
else if (tmp < 12)
memsize = (tmp - 3) * 1024;
else
memsize = (tmp - 7) * 2048;
} else
memsize = mem_tab[tmp & 0x07];
return (memsize);
}
static void
machfb_reset_engine(struct machfb_softc *sc)
{
/* Reset engine.*/
regw(sc, GEN_TEST_CNTL, regr(sc, GEN_TEST_CNTL) & ~GUI_ENGINE_ENABLE);
/* Enable engine. */
regw(sc, GEN_TEST_CNTL, regr(sc, GEN_TEST_CNTL) | GUI_ENGINE_ENABLE);
/*
* Ensure engine is not locked up by clearing any FIFO or
* host errors.
*/
regw(sc, BUS_CNTL, regr(sc, BUS_CNTL) | BUS_HOST_ERR_ACK |
BUS_FIFO_ERR_ACK);
}
static void
machfb_init_engine(struct machfb_softc *sc)
{
uint32_t pitch_value;
pitch_value = sc->sc_width;
if (sc->sc_depth == 24)
pitch_value *= 3;
machfb_reset_engine(sc);
wait_for_fifo(sc, 14);
regw(sc, CONTEXT_MASK, 0xffffffff);
regw(sc, DST_OFF_PITCH, (pitch_value / 8) << 22);
regw(sc, DST_Y_X, 0);
regw(sc, DST_HEIGHT, 0);
regw(sc, DST_BRES_ERR, 0);
regw(sc, DST_BRES_INC, 0);
regw(sc, DST_BRES_DEC, 0);
regw(sc, DST_CNTL, DST_LAST_PEL | DST_X_LEFT_TO_RIGHT |
DST_Y_TOP_TO_BOTTOM);
regw(sc, SRC_OFF_PITCH, (pitch_value / 8) << 22);
regw(sc, SRC_Y_X, 0);
regw(sc, SRC_HEIGHT1_WIDTH1, 1);
regw(sc, SRC_Y_X_START, 0);
regw(sc, SRC_HEIGHT2_WIDTH2, 1);
regw(sc, SRC_CNTL, SRC_LINE_X_LEFT_TO_RIGHT);
wait_for_fifo(sc, 13);
regw(sc, HOST_CNTL, 0);
regw(sc, PAT_REG0, 0);
regw(sc, PAT_REG1, 0);
regw(sc, PAT_CNTL, 0);
regw(sc, SC_LEFT, 0);
regw(sc, SC_TOP, 0);
regw(sc, SC_BOTTOM, sc->sc_height - 1);
regw(sc, SC_RIGHT, pitch_value - 1);
regw(sc, DP_BKGD_CLR, 0);
regw(sc, DP_FRGD_CLR, 0xffffffff);
regw(sc, DP_WRITE_MASK, 0xffffffff);
regw(sc, DP_MIX, (MIX_SRC << 16) | MIX_DST);
regw(sc, DP_SRC, FRGD_SRC_FRGD_CLR);
wait_for_fifo(sc, 3);
regw(sc, CLR_CMP_CLR, 0);
regw(sc, CLR_CMP_MASK, 0xffffffff);
regw(sc, CLR_CMP_CNTL, 0);
wait_for_fifo(sc, 2);
switch (sc->sc_depth) {
case 8:
regw(sc, DP_PIX_WIDTH, HOST_8BPP | SRC_8BPP | DST_8BPP);
regw(sc, DP_CHAIN_MASK, DP_CHAIN_8BPP);
regw(sc, DAC_CNTL, regr(sc, DAC_CNTL) | DAC_8BIT_EN);
break;
#if 0
case 32:
regw(sc, DP_PIX_WIDTH, HOST_32BPP | SRC_32BPP | DST_32BPP);
regw(sc, DP_CHAIN_MASK, DP_CHAIN_32BPP);
regw(sc, DAC_CNTL, regr(sc, DAC_CNTL) | DAC_8BIT_EN);
break;
#endif
}
wait_for_fifo(sc, 2);
regw(sc, CRTC_INT_CNTL, regr(sc, CRTC_INT_CNTL) & ~0x20);
regw(sc, GUI_TRAJ_CNTL, DST_X_LEFT_TO_RIGHT | DST_Y_TOP_TO_BOTTOM);
wait_for_idle(sc);
}
#if 0
static void
machfb_adjust_frame(struct machfb_softc *sc, int x, int y)
{
int offset;
offset = ((x + y * sc->sc_width) * (sc->sc_depth >> 3)) >> 3;
regw(sc, CRTC_OFF_PITCH, (regr(sc, CRTC_OFF_PITCH) & 0xfff00000) |
offset);
}
#endif
static void
machfb_shutdown_final(void *v)
{
struct machfb_softc *sc = v;
machfb_cursor_enable(sc, 0);
/*
* In case this is the console set the cursor of the stdout
* instance to the start of the last line so OFW output ends
* up beneath what FreeBSD left on the screen.
*/
if (sc->sc_flags & MACHFB_CONSOLE) {
OF_interpret("stdout @ is my-self 0 to column#", 0);
OF_interpret("stdout @ is my-self #lines 1 - to line#", 0);
}
}
static void
machfb_shutdown_reset(void *v)
{
struct machfb_softc *sc = v;
machfb_blank_display(&sc->sc_va, V_DISPLAY_STAND_BY);
}
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