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NetBSD/sys/dev/pci/machfb.c

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/* $NetBSD: machfb.c,v 1.63 2011/01/22 15:14:28 cegger Exp $ */
/*
* Copyright (c) 2002 Bang Jun-Young
* Copyright (c) 2005, 2006, 2007 Michael Lorenz
* 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.
*/
/*
* Some code is derived from ATI Rage Pro and Derivatives Programmer's Guide.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0,
"$NetBSD: machfb.c,v 1.63 2011/01/22 15:14:28 cegger Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/callout.h>
#include <sys/lwp.h>
#include <sys/kauth.h>
#include <dev/videomode/videomode.h>
#include <dev/videomode/edidvar.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pciio.h>
#include <dev/pci/machfbreg.h>
#ifdef __sparc__
#include <dev/sun/fbio.h>
#include <dev/sun/fbvar.h>
#include <sys/conf.h>
#else
#include <dev/wscons/wsdisplayvar.h>
#endif
#include <dev/wscons/wsconsio.h>
#include <dev/wsfont/wsfont.h>
#include <dev/rasops/rasops.h>
#include <dev/pci/wsdisplay_pci.h>
#include <dev/wscons/wsdisplay_vconsvar.h>
#include "opt_wsemul.h"
#include "opt_machfb.h"
#define MACH64_REG_SIZE 1024
#define MACH64_REG_OFF 0x7ffc00
#define NBARS 3 /* number of Mach64 PCI BARs */
struct vga_bar {
bus_addr_t vb_base;
pcireg_t vb_busaddr;
bus_size_t vb_size;
pcireg_t vb_type;
int vb_flags;
};
struct mach64_softc {
device_t sc_dev;
#ifdef __sparc__
struct fbdevice sc_fb;
#endif
pci_chipset_tag_t sc_pc;
pcitag_t sc_pcitag;
struct vga_bar sc_bars[NBARS];
struct vga_bar sc_rom;
#define sc_aperbase sc_bars[0].vb_base
#define sc_apersize sc_bars[0].vb_size
#define sc_aperphys sc_bars[0].vb_busaddr
#define sc_iobase sc_bars[1].vb_base
#define sc_iosize sc_bars[1].vb_size
#define sc_regbase sc_bars[2].vb_base
#define sc_regsize sc_bars[2].vb_size
#define sc_regphys sc_bars[2].vb_busaddr
bus_space_tag_t sc_regt;
bus_space_tag_t sc_memt;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_regh;
bus_space_handle_t sc_memh;
void *sc_aperture; /* mapped aperture vaddr */
void *sc_registers; /* mapped registers vaddr */
uint32_t sc_nbus, sc_ndev, sc_nfunc;
size_t memsize;
int memtype;
int sc_mode;
int sc_bg;
int sc_locked;
int has_dsp;
int bits_per_pixel;
int max_x;
int max_y;
int virt_x;
int virt_y;
int color_depth;
int mem_freq;
int ramdac_freq;
int ref_freq;
int ref_div;
int log2_vclk_post_div;
int vclk_post_div;
int vclk_fb_div;
int mclk_post_div;
int mclk_fb_div;
int sc_clock; /* which clock to use */
struct videomode *sc_my_mode;
int sc_edid_size;
uint8_t sc_edid_data[1024];
u_char sc_cmap_red[256];
u_char sc_cmap_green[256];
u_char sc_cmap_blue[256];
int sc_dacw, sc_blanked, sc_console;
struct vcons_data vd;
};
struct mach64_crtcregs {
uint32_t h_total_disp;
uint32_t h_sync_strt_wid;
uint32_t v_total_disp;
uint32_t v_sync_strt_wid;
uint32_t gen_cntl;
uint32_t clock_cntl;
uint32_t color_depth;
uint32_t dot_clock;
};
static struct {
uint16_t chip_id;
uint32_t ramdac_freq;
} const mach64_info[] = {
{ PCI_PRODUCT_ATI_MACH64_CT, 135000 },
{ PCI_PRODUCT_ATI_RAGE_PRO_AGP, 230000 },
{ PCI_PRODUCT_ATI_RAGE_PRO_AGP1X, 230000 },
{ PCI_PRODUCT_ATI_RAGE_PRO_PCI_B, 230000 },
{ PCI_PRODUCT_ATI_RAGE_XL_AGP, 230000 },
{ PCI_PRODUCT_ATI_RAGE_PRO_PCI_P, 230000 },
{ PCI_PRODUCT_ATI_RAGE_PRO_PCI_L, 230000 },
{ PCI_PRODUCT_ATI_RAGE_XL_PCI, 230000 },
{ PCI_PRODUCT_ATI_RAGE_XL_PCI66, 230000 },
{ PCI_PRODUCT_ATI_RAGE_II, 135000 },
{ PCI_PRODUCT_ATI_RAGE_IIP, 200000 },
{ PCI_PRODUCT_ATI_RAGE_IIC_PCI, 230000 },
{ PCI_PRODUCT_ATI_RAGE_IIC_AGP_B, 230000 },
{ PCI_PRODUCT_ATI_RAGE_IIC_AGP_P, 230000 },
#if 0
{ PCI_PRODUCT_ATI_RAGE_LT_PRO_AGP, 230000 },
{ PCI_PRODUCT_ATI_RAGE_MOB_M3_PCI, 230000 },
{ PCI_PRODUCT_ATI_RAGE_MOB_M3_AGP, 230000 },
{ PCI_PRODUCT_ATI_RAGE_MOBILITY, 230000 },
{ PCI_PRODUCT_ATI_RAGE_LT_PRO, 230000 },
#endif
{ PCI_PRODUCT_ATI_RAGE_LT_PRO, 230000 },
{ PCI_PRODUCT_ATI_RAGE_LT, 230000 },
{ PCI_PRODUCT_ATI_RAGE_LT_PRO_PCI, 230000 },
{ PCI_PRODUCT_ATI_MACH64_VT, 170000 },
{ PCI_PRODUCT_ATI_MACH64_VTB, 200000 },
{ PCI_PRODUCT_ATI_MACH64_VT4, 230000 }
};
static int mach64_chip_id, mach64_chip_rev;
static struct videomode default_mode = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, };
static const char *mach64_memtype_names[] = {
"(N/A)", "DRAM", "EDO DRAM", "EDO DRAM", "SDRAM", "SGRAM", "WRAM",
"(unknown type)"
};
static struct videomode mach64_modes[] = {
/* 640x400 @ 70 Hz, 31.5 kHz */
{ 25175, 640, 664, 760, 800, 400, 409, 411, 450, 0, NULL, },
/* 640x480 @ 72 Hz, 36.5 kHz */
{ 25175, 640, 664, 760, 800, 480, 491, 493, 525, 0, NULL, },
/* 800x600 @ 72 Hz, 48.0 kHz */
{ 50000, 800, 856, 976, 1040, 600, 637, 643, 666,
VID_PHSYNC | VID_PVSYNC, NULL, },
/* 1024x768 @ 70 Hz, 56.5 kHz */
{ 75000, 1024, 1048, 1184, 1328, 768, 771, 777, 806,
VID_NHSYNC | VID_NVSYNC, NULL, },
/* 1152x864 @ 70 Hz, 62.4 kHz */
{ 92000, 1152, 1208, 1368, 1474, 864, 865, 875, 895, 0, NULL, },
/* 1280x1024 @ 70 Hz, 74.59 kHz */
{ 126500, 1280, 1312, 1472, 1696, 1024, 1032, 1040, 1068,
VID_NHSYNC | VID_NVSYNC, NULL, }
};
extern const u_char rasops_cmap[768];
static int mach64_match(device_t, cfdata_t, void *);
static void mach64_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(machfb, sizeof(struct mach64_softc), mach64_match, mach64_attach,
NULL, NULL);
static void mach64_init(struct mach64_softc *);
static int mach64_get_memsize(struct mach64_softc *);
static int mach64_get_max_ramdac(struct mach64_softc *);
#if defined(__sparc__) || defined(__powerpc__)
static void mach64_get_mode(struct mach64_softc *, struct videomode *);
#endif
static int mach64_calc_crtcregs(struct mach64_softc *,
struct mach64_crtcregs *,
struct videomode *);
static void mach64_set_crtcregs(struct mach64_softc *,
struct mach64_crtcregs *);
static int mach64_modeswitch(struct mach64_softc *, struct videomode *);
static void mach64_set_dsp(struct mach64_softc *);
static void mach64_set_pll(struct mach64_softc *, int);
static void mach64_reset_engine(struct mach64_softc *);
static void mach64_init_engine(struct mach64_softc *);
#if 0
static void mach64_adjust_frame(struct mach64_softc *, int, int);
#endif
static void mach64_init_lut(struct mach64_softc *);
static void mach64_init_screen(void *, struct vcons_screen *, int, long *);
static int mach64_set_screentype(struct mach64_softc *,
const struct wsscreen_descr *);
static int mach64_is_console(struct mach64_softc *);
static void mach64_cursor(void *, int, int, int);
#if 0
static int mach64_mapchar(void *, int, u_int *);
#endif
static void mach64_putchar(void *, int, int, u_int, long);
static void mach64_copycols(void *, int, int, int, int);
static void mach64_erasecols(void *, int, int, int, long);
static void mach64_copyrows(void *, int, int, int);
static void mach64_eraserows(void *, int, int, long);
static void mach64_clearscreen(struct mach64_softc *);
static int mach64_putcmap(struct mach64_softc *, struct wsdisplay_cmap *);
static int mach64_getcmap(struct mach64_softc *, struct wsdisplay_cmap *);
static int mach64_putpalreg(struct mach64_softc *, uint8_t, uint8_t,
uint8_t, uint8_t);
static void mach64_bitblt(struct mach64_softc *, int, int, int, int, int,
int, int, int) ;
static void mach64_rectfill(struct mach64_softc *, int, int, int, int, int);
static void mach64_setup_mono(struct mach64_softc *, int, int, int, int,
uint32_t, uint32_t);
static void mach64_feed_bytes(struct mach64_softc *, int, uint8_t *);
#if 0
static void mach64_showpal(struct mach64_softc *);
#endif
static void set_address(struct rasops_info *, void *);
static void machfb_blank(struct mach64_softc *, int);
static int machfb_drm_print(void *, const char *);
static struct wsscreen_descr mach64_defaultscreen = {
"default",
80, 30,
NULL,
8, 16,
WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
&default_mode
}, mach64_80x25_screen = {
"80x25", 80, 25,
NULL,
8, 16,
WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
&mach64_modes[0]
}, mach64_80x30_screen = {
"80x30", 80, 30,
NULL,
8, 16,
WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
&mach64_modes[1]
}, mach64_80x40_screen = {
"80x40", 80, 40,
NULL,
8, 10,
WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
&mach64_modes[0]
}, mach64_80x50_screen = {
"80x50", 80, 50,
NULL,
8, 8,
WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
&mach64_modes[0]
}, mach64_100x37_screen = {
"100x37", 100, 37,
NULL,
8, 16,
WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
&mach64_modes[2]
}, mach64_128x48_screen = {
"128x48", 128, 48,
NULL,
8, 16,
WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
&mach64_modes[3]
}, mach64_144x54_screen = {
"144x54", 144, 54,
NULL,
8, 16,
WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
&mach64_modes[4]
}, mach64_160x64_screen = {
"160x54", 160, 64,
NULL,
8, 16,
WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
&mach64_modes[5]
};
static const struct wsscreen_descr *_mach64_scrlist[] = {
&mach64_defaultscreen,
&mach64_80x25_screen,
&mach64_80x30_screen,
&mach64_80x40_screen,
&mach64_80x50_screen,
&mach64_100x37_screen,
&mach64_128x48_screen,
&mach64_144x54_screen,
&mach64_160x64_screen
};
static struct wsscreen_list mach64_screenlist = {
__arraycount(_mach64_scrlist),
_mach64_scrlist
};
static int mach64_ioctl(void *, void *, u_long, void *, int,
struct lwp *);
static paddr_t mach64_mmap(void *, void *, off_t, int);
#if 0
static int mach64_load_font(void *, void *, struct wsdisplay_font *);
#endif
static struct wsdisplay_accessops mach64_accessops = {
mach64_ioctl,
mach64_mmap,
NULL, /* vcons_alloc_screen */
NULL, /* vcons_free_screen */
NULL, /* vcons_show_screen */
NULL, /* load_font */
NULL, /* polls */
NULL, /* scroll */
};
static struct vcons_screen mach64_console_screen;
/* framebuffer device, SPARC-only so far */
#ifdef __sparc__
static void machfb_unblank(device_t);
static void machfb_fbattach(struct mach64_softc *);
extern struct cfdriver machfb_cd;
dev_type_open(machfb_fbopen);
dev_type_close(machfb_fbclose);
dev_type_ioctl(machfb_fbioctl);
dev_type_mmap(machfb_fbmmap);
/* frame buffer generic driver */
static struct fbdriver machfb_fbdriver = {
machfb_unblank, machfb_fbopen, machfb_fbclose, machfb_fbioctl, nopoll,
machfb_fbmmap, nokqfilter
};
#endif /* __sparc__ */
/*
* Inline functions for getting access to register aperture.
*/
static inline uint32_t
regr(struct mach64_softc *sc, uint32_t index)
{
return bus_space_read_4(sc->sc_regt, sc->sc_regh, index);
}
static inline uint8_t
regrb(struct mach64_softc *sc, uint32_t index)
{
return bus_space_read_1(sc->sc_regt, sc->sc_regh, index);
}
static inline void
regw(struct mach64_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 mach64_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 mach64_softc *sc, uint32_t index, uint8_t data)
{
uint32_t reg;
reg = regr(sc, CLOCK_CNTL);
reg |= PLL_WR_EN;
regw(sc, CLOCK_CNTL, reg);
reg &= ~(PLL_ADDR | PLL_DATA);
reg |= (index & 0x3f) << PLL_ADDR_SHIFT;
reg |= data << PLL_DATA_SHIFT;
reg |= CLOCK_STROBE;
regw(sc, CLOCK_CNTL, reg);
reg &= ~PLL_WR_EN;
regw(sc, CLOCK_CNTL, reg);
}
static inline uint8_t
regrb_pll(struct mach64_softc *sc, uint32_t index)
{
regwb(sc, CLOCK_CNTL + 1, index << 2);
return regrb(sc, CLOCK_CNTL + 2);
}
static inline void
wait_for_fifo(struct mach64_softc *sc, uint8_t v)
{
while ((regr(sc, FIFO_STAT) & 0xffff) > (0x8000 >> v))
continue;
}
static inline void
wait_for_idle(struct mach64_softc *sc)
{
wait_for_fifo(sc, 16);
while ((regr(sc, GUI_STAT) & 1) != 0)
continue;
}
static int
mach64_match(device_t parent, cfdata_t match, void *aux)
{
struct pci_attach_args *pa = (struct pci_attach_args *)aux;
int i;
if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY ||
PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA)
return 0;
for (i = 0; i < __arraycount(mach64_info); i++)
if (PCI_PRODUCT(pa->pa_id) == mach64_info[i].chip_id) {
mach64_chip_id = PCI_PRODUCT(pa->pa_id);
mach64_chip_rev = PCI_REVISION(pa->pa_class);
return 100;
}
return 0;
}
static void
mach64_attach(device_t parent, device_t self, void *aux)
{
struct mach64_softc *sc = device_private(self);
struct pci_attach_args *pa = aux;
struct rasops_info *ri;
prop_data_t edid_data;
const struct videomode *mode = NULL;
char devinfo[256];
int bar, id;
struct wsemuldisplaydev_attach_args aa;
long defattr;
int setmode, width, height;
pcireg_t screg;
uint32_t reg;
sc->sc_dev = self;
sc->sc_pc = pa->pa_pc;
sc->sc_pcitag = pa->pa_tag;
sc->sc_dacw = -1;
sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
sc->sc_nbus = pa->pa_bus;
sc->sc_ndev = pa->pa_device;
sc->sc_nfunc = pa->pa_function;
sc->sc_locked = 0;
sc->sc_iot = pa->pa_iot;
pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
aprint_normal(": %s (rev. 0x%02x)\n", devinfo,
PCI_REVISION(pa->pa_class));
aprint_naive(": Graphics processor\n");
#ifdef MACHFB_DEBUG
printf(prop_dictionary_externalize(device_properties(self)));
#endif
/* enable memory and disable IO access */
screg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, PCI_COMMAND_STATUS_REG);
if ((screg & PCI_FLAGS_MEM_ENABLED) == 0) {
screg |= PCI_FLAGS_IO_ENABLED;
screg |= PCI_FLAGS_MEM_ENABLED;
pci_conf_write(sc->sc_pc, sc->sc_pcitag,
PCI_COMMAND_STATUS_REG, screg);
}
for (bar = 0; bar < NBARS; bar++) {
reg = PCI_MAPREG_START + (bar * 4);
sc->sc_bars[bar].vb_type = pci_mapreg_type(sc->sc_pc,
sc->sc_pcitag, reg);
(void)pci_mapreg_info(sc->sc_pc, sc->sc_pcitag, reg,
sc->sc_bars[bar].vb_type, &sc->sc_bars[bar].vb_base,
&sc->sc_bars[bar].vb_size, &sc->sc_bars[bar].vb_flags);
sc->sc_bars[bar].vb_busaddr = pci_conf_read(sc->sc_pc,
sc->sc_pcitag, reg) & 0xfffffff0;
}
printf("%s: aperture size %08x\n", device_xname(sc->sc_dev),
(uint32_t)sc->sc_apersize);
sc->sc_rom.vb_type = PCI_MAPREG_TYPE_ROM;
pci_mapreg_info(sc->sc_pc, sc->sc_pcitag, PCI_MAPREG_ROM,
sc->sc_rom.vb_type, &sc->sc_rom.vb_base,
&sc->sc_rom.vb_size, &sc->sc_rom.vb_flags);
sc->sc_memt = pa->pa_memt;
if (bus_space_map(sc->sc_memt, sc->sc_aperbase, sc->sc_apersize,
BUS_SPACE_MAP_LINEAR, &sc->sc_memh)) {
panic("%s: failed to map aperture", device_xname(sc->sc_dev));
}
sc->sc_aperture = (void *)bus_space_vaddr(sc->sc_memt, sc->sc_memh);
sc->sc_regt = sc->sc_memt;
bus_space_subregion(sc->sc_regt, sc->sc_memh, MACH64_REG_OFF,
sc->sc_regsize, &sc->sc_regh);
sc->sc_registers = (char *)sc->sc_aperture + 0x7ffc00;
mach64_init(sc);
aprint_normal_dev(sc->sc_dev,
"%d MB aperture at 0x%08x, %d KB registers at 0x%08x\n",
(u_int)(sc->sc_apersize / (1024 * 1024)),
(u_int)sc->sc_aperphys, (u_int)(sc->sc_regsize / 1024),
(u_int)sc->sc_regphys);
printf("%s: %d KB ROM at 0x%08x\n", device_xname(sc->sc_dev),
(int)sc->sc_rom.vb_size >> 10, (uint32_t)sc->sc_rom.vb_base);
prop_dictionary_get_uint32(device_properties(self), "width", &width);
prop_dictionary_get_uint32(device_properties(self), "height", &height);
if ((edid_data = prop_dictionary_get(device_properties(self), "EDID"))
!= NULL) {
struct edid_info ei;
sc->sc_edid_size = min(1024, prop_data_size(edid_data));
memset(sc->sc_edid_data, 0, sizeof(sc->sc_edid_data));
memcpy(sc->sc_edid_data, prop_data_data_nocopy(edid_data),
sc->sc_edid_size);
edid_parse(sc->sc_edid_data, &ei);
#ifdef MACHFB_DEBUG
edid_print(&ei);
#endif
if (ei.edid_have_range) {
/* ei has dotclock in MHz, struct videomode in kHz */
mode = pick_mode_by_dotclock(width, height,
ei.edid_range.er_max_clock * 1000);
if (mode != NULL)
printf("mode: %s\n", mode->name);
}
}
if (mach64_chip_id == PCI_PRODUCT_ATI_MACH64_CT ||
((mach64_chip_id == PCI_PRODUCT_ATI_MACH64_VT ||
mach64_chip_id == PCI_PRODUCT_ATI_RAGE_II) &&
(mach64_chip_rev & 0x07) == 0))
sc->has_dsp = 0;
else
sc->has_dsp = 1;
sc->memsize = mach64_get_memsize(sc);
if (sc->memsize == 8192)
/* The last page is used as register aperture. */
sc->memsize -= 4;
sc->memtype = regr(sc, CONFIG_STAT0) & 0x07;
/* XXX is there any way to calculate reference frequency from
known values? */
if ((mach64_chip_id == PCI_PRODUCT_ATI_RAGE_XL_PCI) ||
((mach64_chip_id >= PCI_PRODUCT_ATI_RAGE_LT_PRO_PCI) &&
(mach64_chip_id <= PCI_PRODUCT_ATI_RAGE_LT_PRO))) {
aprint_normal_dev(sc->sc_dev, "ref_freq=29.498MHz\n");
sc->ref_freq = 29498;
} else
sc->ref_freq = 14318;
reg = regr(sc, CLOCK_CNTL);
printf("CLOCK_CNTL: %08x\n", reg);
sc->sc_clock = reg & 3;
printf("using clock %d\n", sc->sc_clock);
sc->ref_div = regrb_pll(sc, PLL_REF_DIV);
printf("ref_div: %d\n", sc->ref_div);
sc->mclk_fb_div = regrb_pll(sc, MCLK_FB_DIV);
printf("mclk_fb_div: %d\n", sc->mclk_fb_div);
sc->mem_freq = (2 * sc->ref_freq * sc->mclk_fb_div) /
(sc->ref_div * 2);
sc->mclk_post_div = (sc->mclk_fb_div * 2 * sc->ref_freq) /
(sc->mem_freq * sc->ref_div);
sc->ramdac_freq = mach64_get_max_ramdac(sc);
aprint_normal_dev(sc->sc_dev,
"%ld KB %s %d.%d MHz, maximum RAMDAC clock %d MHz\n",
(u_long)sc->memsize,
mach64_memtype_names[sc->memtype],
sc->mem_freq / 1000, sc->mem_freq % 1000,
sc->ramdac_freq / 1000);
id = regr(sc, CONFIG_CHIP_ID) & 0xffff;
if (id != mach64_chip_id) {
aprint_error_dev(sc->sc_dev,
"chip ID mismatch, 0x%x != 0x%x\n", id, mach64_chip_id);
return;
}
sc->sc_console = mach64_is_console(sc);
#ifdef DIAGNOSTIC
aprint_normal("gen_cntl: %08x\n", regr(sc, CRTC_GEN_CNTL));
#endif
#if defined(__sparc__) || defined(__powerpc__)
if (sc->sc_console) {
if (mode != NULL) {
memcpy(&default_mode, mode, sizeof(struct videomode));
setmode = 1;
} else {
mach64_get_mode(sc, &default_mode);
setmode = 0;
}
sc->sc_my_mode = &default_mode;
} else {
/* fill in default_mode if it's empty */
mach64_get_mode(sc, &default_mode);
if (default_mode.dot_clock == 0) {
memcpy(&default_mode, &mach64_modes[4],
sizeof(default_mode));
}
sc->sc_my_mode = &default_mode;
setmode = 1;
}
#else
if (default_mode.dot_clock == 0) {
memcpy(&default_mode, &mach64_modes[0],
sizeof(default_mode));
}
sc->sc_my_mode = &mach64_modes[0];
setmode = 1;
#endif
sc->bits_per_pixel = 8;
sc->virt_x = sc->sc_my_mode->hdisplay;
sc->virt_y = sc->sc_my_mode->vdisplay;
sc->max_x = sc->virt_x - 1;
sc->max_y = (sc->memsize * 1024) /
(sc->virt_x * (sc->bits_per_pixel / 8)) - 1;
sc->color_depth = CRTC_PIX_WIDTH_8BPP;
mach64_init_engine(sc);
if (setmode)
mach64_modeswitch(sc, sc->sc_my_mode);
#if 0
mach64_adjust_frame(0, 0);
if (sc->bits_per_pixel == 8)
mach64_init_lut(sc);
#endif
aprint_normal_dev(sc->sc_dev,
"initial resolution %dx%d at %d bpp\n",
sc->sc_my_mode->hdisplay, sc->sc_my_mode->vdisplay,
sc->bits_per_pixel);
#ifdef __sparc__
machfb_fbattach(sc);
#endif
wsfont_init();
sc->sc_bg = WS_DEFAULT_BG;
vcons_init(&sc->vd, sc, &mach64_defaultscreen, &mach64_accessops);
sc->vd.init_screen = mach64_init_screen;
mach64_init_lut(sc);
mach64_clearscreen(sc);
machfb_blank(sc, 0); /* unblank the screen */
if (sc->sc_console) {
vcons_init_screen(&sc->vd, &mach64_console_screen, 1,
&defattr);
mach64_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
ri = &mach64_console_screen.scr_ri;
mach64_defaultscreen.textops = &ri->ri_ops;
mach64_defaultscreen.capabilities = ri->ri_caps;
mach64_defaultscreen.nrows = ri->ri_rows;
mach64_defaultscreen.ncols = ri->ri_cols;
wsdisplay_cnattach(&mach64_defaultscreen, ri, 0, 0, defattr);
vcons_replay_msgbuf(&mach64_console_screen);
} else {
/*
* since we're not the console we can postpone the rest
* until someone actually allocates a screen for us
*/
mach64_modeswitch(sc, sc->sc_my_mode);
}
aa.console = sc->sc_console;
aa.scrdata = &mach64_screenlist;
aa.accessops = &mach64_accessops;
aa.accesscookie = &sc->vd;
config_found(self, &aa, wsemuldisplaydevprint);
config_found_ia(self, "drm", aux, machfb_drm_print);
}
static int
machfb_drm_print(void *aux, const char *pnp)
{
if (pnp)
aprint_normal("direct rendering for %s", pnp);
return (UNSUPP);
}
static void
mach64_init_screen(void *cookie, struct vcons_screen *scr, int existing,
long *defattr)
{
struct mach64_softc *sc = cookie;
struct rasops_info *ri = &scr->scr_ri;
/* XXX for now */
#define setmode 0
ri->ri_depth = sc->bits_per_pixel;
ri->ri_width = sc->sc_my_mode->hdisplay;
ri->ri_height = sc->sc_my_mode->vdisplay;
ri->ri_stride = ri->ri_width;
ri->ri_flg = RI_CENTER;
set_address(ri, sc->sc_aperture);
if (existing) {
ri->ri_flg |= RI_CLEAR;
if (setmode && mach64_set_screentype(sc, scr->scr_type)) {
panic("%s: failed to switch video mode",
device_xname(sc->sc_dev));
}
}
rasops_init(ri, sc->sc_my_mode->vdisplay / 8,
sc->sc_my_mode->hdisplay / 8);
ri->ri_caps = WSSCREEN_WSCOLORS;
rasops_reconfig(ri, sc->sc_my_mode->vdisplay / ri->ri_font->fontheight,
sc->sc_my_mode->hdisplay / ri->ri_font->fontwidth);
/* enable acceleration */
ri->ri_hw = scr;
ri->ri_ops.copyrows = mach64_copyrows;
ri->ri_ops.copycols = mach64_copycols;
ri->ri_ops.eraserows = mach64_eraserows;
ri->ri_ops.erasecols = mach64_erasecols;
ri->ri_ops.cursor = mach64_cursor;
ri->ri_ops.putchar = mach64_putchar;
}
static void
mach64_init(struct mach64_softc *sc)
{
uint32_t *p32, saved_value;
uint8_t *p;
int need_swap;
/*
* Test wether the aperture is byte swapped or not
*/
p32 = (uint32_t*)sc->sc_aperture;
saved_value = *p32;
p = (uint8_t*)(u_long)sc->sc_aperture;
*p32 = 0x12345678;
if (p[0] == 0x12 && p[1] == 0x34 && p[2] == 0x56 && p[3] == 0x78)
need_swap = 0;
else
need_swap = 1;
if (need_swap) {
sc->sc_aperture = (char *)sc->sc_aperture + 0x800000;
#if 0
/* what the fsck is this for? */
sc->sc_aperbase += 0x800000;
sc->sc_apersize -= 0x800000;
#endif
}
*p32 = saved_value;
sc->sc_blanked = 0;
}
static int
mach64_get_memsize(struct mach64_softc *sc)
{
int tmp, memsize;
int mem_tab[] = {
512, 1024, 2048, 4096, 6144, 8192, 12288, 16384
};
tmp = regr(sc, MEM_CNTL);
#ifdef DIAGNOSTIC
aprint_debug_dev(sc->sc_dev, "memctl %08x\n", tmp);
#endif
if (sc->has_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 int
mach64_get_max_ramdac(struct mach64_softc *sc)
{
int i;
if ((mach64_chip_id == PCI_PRODUCT_ATI_MACH64_VT ||
mach64_chip_id == PCI_PRODUCT_ATI_RAGE_II) &&
(mach64_chip_rev & 0x07))
return 170000;
for (i = 0; i < __arraycount(mach64_info); i++)
if (mach64_chip_id == mach64_info[i].chip_id)
return mach64_info[i].ramdac_freq;
if (sc->bits_per_pixel == 8)
return 135000;
else
return 80000;
}
#if defined(__sparc__) || defined(__powerpc__)
static void
mach64_get_mode(struct mach64_softc *sc, struct videomode *mode)
{
struct mach64_crtcregs crtc;
crtc.h_total_disp = regr(sc, CRTC_H_TOTAL_DISP);
crtc.h_sync_strt_wid = regr(sc, CRTC_H_SYNC_STRT_WID);
crtc.v_total_disp = regr(sc, CRTC_V_TOTAL_DISP);
crtc.v_sync_strt_wid = regr(sc, CRTC_V_SYNC_STRT_WID);
mode->htotal = ((crtc.h_total_disp & 0xffff) + 1) << 3;
mode->hdisplay = ((crtc.h_total_disp >> 16) + 1) << 3;
mode->hsync_start = ((crtc.h_sync_strt_wid & 0xffff) + 1) << 3;
mode->hsync_end = ((crtc.h_sync_strt_wid >> 16) << 3) +
mode->hsync_start;
mode->vtotal = (crtc.v_total_disp & 0xffff) + 1;
mode->vdisplay = (crtc.v_total_disp >> 16) + 1;
mode->vsync_start = (crtc.v_sync_strt_wid & 0xffff) + 1;
mode->vsync_end = (crtc.v_sync_strt_wid >> 16) + mode->vsync_start;
#ifdef MACHFB_DEBUG
printf("mach64_get_mode: %d %d %d %d %d %d %d %d\n",
mode->hdisplay, mode->hsync_start, mode->hsync_end, mode->htotal,
mode->vdisplay, mode->vsync_start, mode->vsync_end, mode->vtotal);
#endif
}
#endif
static int
mach64_calc_crtcregs(struct mach64_softc *sc, struct mach64_crtcregs *crtc,
struct videomode *mode)
{
if (mode->dot_clock > sc->ramdac_freq)
/* Clock too high. */
return 1;
crtc->h_total_disp = (((mode->hdisplay >> 3) - 1) << 16) |
((mode->htotal >> 3) - 1);
crtc->h_sync_strt_wid =
(((mode->hsync_end - mode->hsync_start) >> 3) << 16) |
((mode->hsync_start >> 3) - 1);
crtc->v_total_disp = ((mode->vdisplay - 1) << 16) |
(mode->vtotal - 1);
crtc->v_sync_strt_wid =
((mode->vsync_end - mode->vsync_start) << 16) |
(mode->vsync_start - 1);
if (mode->flags & VID_NVSYNC)
crtc->v_sync_strt_wid |= CRTC_VSYNC_NEG;
switch (sc->bits_per_pixel) {
case 8:
crtc->color_depth = CRTC_PIX_WIDTH_8BPP;
break;
case 16:
crtc->color_depth = CRTC_PIX_WIDTH_16BPP;
break;
case 32:
crtc->color_depth = CRTC_PIX_WIDTH_32BPP;
break;
}
crtc->gen_cntl = 0;
if (mode->flags & VID_INTERLACE)
crtc->gen_cntl |= CRTC_INTERLACE_EN;
if (mode->flags & VID_CSYNC)
crtc->gen_cntl |= CRTC_CSYNC_EN;
crtc->dot_clock = mode->dot_clock;
return 0;
}
static void
mach64_set_crtcregs(struct mach64_softc *sc, struct mach64_crtcregs *crtc)
{
mach64_set_pll(sc, crtc->dot_clock);
if (sc->has_dsp)
mach64_set_dsp(sc);
#if 1
regw(sc, CRTC_H_TOTAL_DISP, crtc->h_total_disp);
regw(sc, CRTC_H_SYNC_STRT_WID, crtc->h_sync_strt_wid);
regw(sc, CRTC_V_TOTAL_DISP, crtc->v_total_disp);
regw(sc, CRTC_V_SYNC_STRT_WID, crtc->v_sync_strt_wid);
regw(sc, CRTC_VLINE_CRNT_VLINE, 0);
regw(sc, CRTC_OFF_PITCH, (sc->virt_x >> 3) << 22);
regw(sc, CRTC_GEN_CNTL, crtc->gen_cntl | crtc->color_depth |
/* XXX this unconditionally enables composite sync on SPARC */
#ifdef __sparc__
CRTC_CSYNC_EN |
#endif
CRTC_EXT_DISP_EN | CRTC_EXT_EN);
#endif
}
static int
mach64_modeswitch(struct mach64_softc *sc, struct videomode *mode)
{
struct mach64_crtcregs crtc;
memset(&crtc, 0, sizeof crtc); /* XXX gcc */
if (mach64_calc_crtcregs(sc, &crtc, mode))
return 1;
aprint_debug("crtc dot clock: %d\n", crtc.dot_clock);
if (crtc.dot_clock == 0) {
aprint_error("%s: preposterous dot clock (%d)\n",
device_xname(sc->sc_dev), crtc.dot_clock);
return 1;
}
mach64_set_crtcregs(sc, &crtc);
return 0;
}
static void
mach64_reset_engine(struct mach64_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
mach64_init_engine(struct mach64_softc *sc)
{
uint32_t pitch_value;
pitch_value = sc->virt_x;
if (sc->bits_per_pixel == 24)
pitch_value *= 3;
mach64_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_my_mode->vdisplay - 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->bits_per_pixel) {
case 8:
regw(sc, DP_PIX_WIDTH, HOST_8BPP | SRC_8BPP | DST_8BPP);
regw(sc, DP_CHAIN_MASK, DP_CHAIN_8BPP);
/* We want 8 bit per channel */
regw(sc, DAC_CNTL, regr(sc, DAC_CNTL) | DAC_8BIT_EN);
break;
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;
}
wait_for_fifo(sc, 5);
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
mach64_adjust_frame(struct mach64_softc *sc, int x, int y)
{
int offset;
offset = ((x + y * sc->virt_x) * (sc->bits_per_pixel >> 3)) >> 3;
regw(sc, CRTC_OFF_PITCH, (regr(sc, CRTC_OFF_PITCH) & 0xfff00000) |
offset);
}
#endif
static void
mach64_set_dsp(struct mach64_softc *sc)
{
uint32_t fifo_depth, page_size, dsp_precision, dsp_loop_latency;
uint32_t dsp_off, dsp_on, dsp_xclks_per_qw;
uint32_t xclks_per_qw, y;
uint32_t fifo_off, fifo_on;
aprint_normal_dev(sc->sc_dev, "initializing the DSP\n");
if (mach64_chip_id == PCI_PRODUCT_ATI_MACH64_VT ||
mach64_chip_id == PCI_PRODUCT_ATI_RAGE_II ||
mach64_chip_id == PCI_PRODUCT_ATI_RAGE_IIP ||
mach64_chip_id == PCI_PRODUCT_ATI_RAGE_IIC_PCI ||
mach64_chip_id == PCI_PRODUCT_ATI_RAGE_IIC_AGP_B ||
mach64_chip_id == PCI_PRODUCT_ATI_RAGE_IIC_AGP_P) {
dsp_loop_latency = 0;
fifo_depth = 24;
} else {
dsp_loop_latency = 2;
fifo_depth = 32;
}
dsp_precision = 0;
xclks_per_qw = (sc->mclk_fb_div * sc->vclk_post_div * 64 << 11) /
(sc->vclk_fb_div * sc->mclk_post_div * sc->bits_per_pixel);
y = (xclks_per_qw * fifo_depth) >> 11;
while (y) {
y >>= 1;
dsp_precision++;
}
dsp_precision -= 5;
fifo_off = ((xclks_per_qw * (fifo_depth - 1)) >> 5) + (3 << 6);
switch (sc->memtype) {
case DRAM:
case EDO_DRAM:
case PSEUDO_EDO:
if (sc->memsize > 1024) {
page_size = 9;
dsp_loop_latency += 6;
} else {
page_size = 10;
if (sc->memtype == DRAM)
dsp_loop_latency += 8;
else
dsp_loop_latency += 7;
}
break;
case SDRAM:
case SGRAM:
if (sc->memsize > 1024) {
page_size = 8;
dsp_loop_latency += 8;
} else {
page_size = 10;
dsp_loop_latency += 9;
}
break;
default:
page_size = 10;
dsp_loop_latency += 9;
break;
}
if (xclks_per_qw >= (page_size << 11))
fifo_on = ((2 * page_size + 1) << 6) + (xclks_per_qw >> 5);
else
fifo_on = (3 * page_size + 2) << 6;
dsp_xclks_per_qw = xclks_per_qw >> dsp_precision;
dsp_on = fifo_on >> dsp_precision;
dsp_off = fifo_off >> dsp_precision;
#ifdef MACHFB_DEBUG
printf("dsp_xclks_per_qw = %d, dsp_on = %d, dsp_off = %d,\n"
"dsp_precision = %d, dsp_loop_latency = %d,\n"
"mclk_fb_div = %d, vclk_fb_div = %d,\n"
"mclk_post_div = %d, vclk_post_div = %d\n",
dsp_xclks_per_qw, dsp_on, dsp_off, dsp_precision, dsp_loop_latency,
sc->mclk_fb_div, sc->vclk_fb_div,
sc->mclk_post_div, sc->vclk_post_div);
#endif
regw(sc, DSP_ON_OFF, ((dsp_on << 16) & DSP_ON) | (dsp_off & DSP_OFF));
regw(sc, DSP_CONFIG, ((dsp_precision << 20) & DSP_PRECISION) |
((dsp_loop_latency << 16) & DSP_LOOP_LATENCY) |
(dsp_xclks_per_qw & DSP_XCLKS_PER_QW));
}
static void
mach64_set_pll(struct mach64_softc *sc, int clock)
{
uint32_t q, clockreg;
int clockshift = sc->sc_clock << 1;
uint8_t reg, vclk_ctl;
q = (clock * sc->ref_div * 100) / (2 * sc->ref_freq);
#ifdef MACHFB_DEBUG
printf("q = %d\n", q);
#endif
if (q > 25500) {
printf("Warning: q > 25500\n");
q = 25500;
sc->vclk_post_div = 1;
sc->log2_vclk_post_div = 0;
} else if (q > 12750) {
sc->vclk_post_div = 1;
sc->log2_vclk_post_div = 0;
} else if (q > 6350) {
sc->vclk_post_div = 2;
sc->log2_vclk_post_div = 1;
} else if (q > 3150) {
sc->vclk_post_div = 4;
sc->log2_vclk_post_div = 2;
} else if (q >= 1600) {
sc->vclk_post_div = 8;
sc->log2_vclk_post_div = 3;
} else {
printf("Warning: q < 1600\n");
sc->vclk_post_div = 8;
sc->log2_vclk_post_div = 3;
}
sc->vclk_fb_div = q * sc->vclk_post_div / 100;
printf("post_div: %d log2_post_div: %d mclk_div: %d\n", sc->vclk_post_div, sc->log2_vclk_post_div, sc->mclk_fb_div);
vclk_ctl = regrb_pll(sc, PLL_VCLK_CNTL);
printf("vclk_ctl: %02x\n", vclk_ctl);
vclk_ctl |= PLL_VCLK_RESET;
regwb_pll(sc, PLL_VCLK_CNTL, vclk_ctl);
regwb_pll(sc, MCLK_FB_DIV, sc->mclk_fb_div);
reg = regrb_pll(sc, VCLK_POST_DIV);
reg &= ~(3 << clockshift);
reg |= (sc->log2_vclk_post_div << clockshift);
regwb_pll(sc, VCLK_POST_DIV, reg);
regwb_pll(sc, VCLK0_FB_DIV + sc->sc_clock, sc->vclk_fb_div);
vclk_ctl &= ~PLL_VCLK_RESET;
regwb_pll(sc, PLL_VCLK_CNTL, vclk_ctl);
clockreg = regr(sc, CLOCK_CNTL);
clockreg &= ~CLOCK_SEL;
clockreg |= sc->sc_clock | CLOCK_STROBE;
regw(sc, CLOCK_CNTL, clockreg);
}
static void
mach64_init_lut(struct mach64_softc *sc)
{
int i, idx;
idx = 0;
for (i = 0; i < 256; i++) {
mach64_putpalreg(sc, i, rasops_cmap[idx], rasops_cmap[idx + 1],
rasops_cmap[idx + 2]);
idx += 3;
}
}
static int
mach64_putpalreg(struct mach64_softc *sc, uint8_t index, uint8_t r, uint8_t g,
uint8_t b)
{
sc->sc_cmap_red[index] = r;
sc->sc_cmap_green[index] = g;
sc->sc_cmap_blue[index] = b;
/*
* writing the dac index takes a while, in theory we can poll some
* register to see when it's ready - but we better avoid writing it
* unnecessarily
*/
if (index != sc->sc_dacw) {
regwb(sc, DAC_MASK, 0xff);
regwb(sc, DAC_WINDEX, index);
}
sc->sc_dacw = index + 1;
regwb(sc, DAC_DATA, r);
regwb(sc, DAC_DATA, g);
regwb(sc, DAC_DATA, b);
return 0;
}
static int
mach64_putcmap(struct mach64_softc *sc, struct wsdisplay_cmap *cm)
{
uint index = cm->index;
uint count = cm->count;
int i, error;
uint8_t rbuf[256], gbuf[256], bbuf[256];
uint8_t *r, *g, *b;
if (cm->index >= 256 || cm->count > 256 ||
(cm->index + cm->count) > 256)
return EINVAL;
error = copyin(cm->red, &rbuf[index], count);
if (error)
return error;
error = copyin(cm->green, &gbuf[index], count);
if (error)
return error;
error = copyin(cm->blue, &bbuf[index], count);
if (error)
return error;
memcpy(&sc->sc_cmap_red[index], &rbuf[index], count);
memcpy(&sc->sc_cmap_green[index], &gbuf[index], count);
memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count);
r = &sc->sc_cmap_red[index];
g = &sc->sc_cmap_green[index];
b = &sc->sc_cmap_blue[index];
for (i = 0; i < count; i++) {
mach64_putpalreg(sc, index, *r, *g, *b);
index++;
r++, g++, b++;
}
return 0;
}
static int
mach64_getcmap(struct mach64_softc *sc, struct wsdisplay_cmap *cm)
{
u_int index = cm->index;
u_int count = cm->count;
int error;
if (index >= 255 || count > 256 || index + count > 256)
return EINVAL;
error = copyout(&sc->sc_cmap_red[index], cm->red, count);
if (error)
return error;
error = copyout(&sc->sc_cmap_green[index], cm->green, count);
if (error)
return error;
error = copyout(&sc->sc_cmap_blue[index], cm->blue, count);
if (error)
return error;
return 0;
}
static int
mach64_set_screentype(struct mach64_softc *sc, const struct wsscreen_descr *des)
{
struct mach64_crtcregs regs;
if (mach64_calc_crtcregs(sc, &regs,
(struct videomode *)des->modecookie))
return 1;
mach64_set_crtcregs(sc, &regs);
return 0;
}
static int
mach64_is_console(struct mach64_softc *sc)
{
bool console = 0;
prop_dictionary_get_bool(device_properties(sc->sc_dev),
"is_console", &console);
return console;
}
/*
* wsdisplay_emulops
*/
static void
mach64_cursor(void *cookie, int on, int row, int col)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct mach64_softc *sc = scr->scr_cookie;
int x, y, wi, he;
wi = ri->ri_font->fontwidth;
he = ri->ri_font->fontheight;
if ((!sc->sc_locked) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
x = ri->ri_ccol * wi + ri->ri_xorigin;
y = ri->ri_crow * he + ri->ri_yorigin;
if (ri->ri_flg & RI_CURSOR) {
mach64_bitblt(sc, x, y, x, y, wi, he, MIX_NOT_SRC,
0xff);
ri->ri_flg &= ~RI_CURSOR;
}
ri->ri_crow = row;
ri->ri_ccol = col;
if (on) {
x = ri->ri_ccol * wi + ri->ri_xorigin;
y = ri->ri_crow * he + ri->ri_yorigin;
mach64_bitblt(sc, x, y, x, y, wi, he, MIX_NOT_SRC,
0xff);
ri->ri_flg |= RI_CURSOR;
}
} else {
scr->scr_ri.ri_crow = row;
scr->scr_ri.ri_ccol = col;
scr->scr_ri.ri_flg &= ~RI_CURSOR;
}
}
#if 0
static int
mach64_mapchar(void *cookie, int uni, u_int *index)
{
return 0;
}
#endif
static void
mach64_putchar(void *cookie, int row, int col, u_int c, long attr)
{
struct rasops_info *ri = cookie;
struct wsdisplay_font *font = PICK_FONT(ri, c);
struct vcons_screen *scr = ri->ri_hw;
struct mach64_softc *sc = scr->scr_cookie;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
int fg, bg, uc;
uint8_t *data;
int x, y, wi, he;
wi = font->fontwidth;
he = font->fontheight;
if (!CHAR_IN_FONT(c, font))
return;
bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0x0f];
fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0x0f];
x = ri->ri_xorigin + col * wi;
y = ri->ri_yorigin + row * he;
if (c == 0x20) {
mach64_rectfill(sc, x, y, wi, he, bg);
} else {
uc = c - font->firstchar;
data = (uint8_t *)font->data + uc *
ri->ri_fontscale;
mach64_setup_mono(sc, x, y, wi, he, fg, bg);
mach64_feed_bytes(sc, ri->ri_fontscale, data);
}
}
}
static void
mach64_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct mach64_softc *sc = scr->scr_cookie;
int32_t xs, xd, y, width, height;
if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
y = ri->ri_yorigin + ri->ri_font->fontheight * row;
width = ri->ri_font->fontwidth * ncols;
height = ri->ri_font->fontheight;
mach64_bitblt(sc, xs, y, xd, y, width, height, MIX_SRC, 0xff);
}
}
static void
mach64_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct mach64_softc *sc = scr->scr_cookie;
int32_t x, y, width, height, fg, bg, ul;
if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
y = ri->ri_yorigin + ri->ri_font->fontheight * row;
width = ri->ri_font->fontwidth * ncols;
height = ri->ri_font->fontheight;
rasops_unpack_attr(fillattr, &fg, &bg, &ul);
mach64_rectfill(sc, x, y, width, height, bg);
}
}
static void
mach64_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct mach64_softc *sc = scr->scr_cookie;
int32_t x, ys, yd, width, height;
if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
x = ri->ri_xorigin;
ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
width = ri->ri_emuwidth;
height = ri->ri_font->fontheight*nrows;
mach64_bitblt(sc, x, ys, x, yd, width, height, MIX_SRC, 0xff);
}
}
static void
mach64_eraserows(void *cookie, int row, int nrows, long fillattr)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct mach64_softc *sc = scr->scr_cookie;
int32_t x, y, width, height, fg, bg, ul;
if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
x = ri->ri_xorigin;
y = ri->ri_yorigin + ri->ri_font->fontheight * row;
width = ri->ri_emuwidth;
height = ri->ri_font->fontheight * nrows;
rasops_unpack_attr(fillattr, &fg, &bg, &ul);
mach64_rectfill(sc, x, y, width, height, bg);
}
}
static void
mach64_bitblt(struct mach64_softc *sc, int xs, int ys, int xd, int yd, int width, int height, int rop, int mask)
{
uint32_t dest_ctl = 0;
wait_for_idle(sc);
regw(sc, DP_WRITE_MASK, mask); /* XXX only good for 8 bit */
regw(sc, DP_PIX_WIDTH, DST_8BPP | SRC_8BPP | HOST_8BPP);
regw(sc, DP_SRC, FRGD_SRC_BLIT);
regw(sc, DP_MIX, (rop & 0xffff) << 16);
regw(sc, CLR_CMP_CNTL, 0); /* no transparency */
if (yd < ys) {
dest_ctl = DST_Y_TOP_TO_BOTTOM;
} else {
ys += height - 1;
yd += height - 1;
dest_ctl = DST_Y_BOTTOM_TO_TOP;
}
if (xd < xs) {
dest_ctl |= DST_X_LEFT_TO_RIGHT;
regw(sc, SRC_CNTL, SRC_LINE_X_LEFT_TO_RIGHT);
} else {
dest_ctl |= DST_X_RIGHT_TO_LEFT;
xs += width - 1;
xd += width - 1;
regw(sc, SRC_CNTL, SRC_LINE_X_RIGHT_TO_LEFT);
}
regw(sc, DST_CNTL, dest_ctl);
regw(sc, SRC_Y_X, (xs << 16) | ys);
regw(sc, SRC_WIDTH1, width);
regw(sc, DST_Y_X, (xd << 16) | yd);
regw(sc, DST_HEIGHT_WIDTH, (width << 16) | height);
}
static void
mach64_setup_mono(struct mach64_softc *sc, int xd, int yd, int width,
int height, uint32_t fg, uint32_t bg)
{
wait_for_idle(sc);
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);
regw(sc, DP_BKGD_CLR, bg);
regw(sc, DP_FRGD_CLR, fg);
regw(sc, SRC_Y_X, 0);
regw(sc, SRC_WIDTH1, width);
regw(sc, DST_Y_X, (xd << 16) | yd);
regw(sc, DST_HEIGHT_WIDTH, (width << 16) | height);
/* now feed the data into the chip */
}
static void
mach64_feed_bytes(struct mach64_softc *sc, int count, uint8_t *data)
{
int i;
uint32_t latch = 0, bork;
int shift = 0;
int reg = 0;
for (i=0;i<count;i++) {
bork = data[i];
latch |= (bork << shift);
if (shift == 24) {
regw(sc, HOST_DATA0 + reg, latch);
latch = 0;
shift = 0;
reg = (reg + 4) & 0x3c;
} else
shift += 8;
}
if (shift != 0) /* 24 */
regw(sc, HOST_DATA0 + reg, latch);
}
static void
mach64_rectfill(struct mach64_softc *sc, int x, int y, int width, int height,
int colour)
{
wait_for_idle(sc);
regw(sc, DP_WRITE_MASK, 0xff);
regw(sc, DP_FRGD_CLR, colour);
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);
regw(sc, SRC_Y_X, (x << 16) | y);
regw(sc, SRC_WIDTH1, width);
regw(sc, DST_Y_X, (x << 16) | y);
regw(sc, DST_HEIGHT_WIDTH, (width << 16) | height);
}
static void
mach64_clearscreen(struct mach64_softc *sc)
{
mach64_rectfill(sc, 0, 0, sc->virt_x, sc->virt_y, sc->sc_bg);
}
#if 0
static void
mach64_showpal(struct mach64_softc *sc)
{
int i, x = 0;
for (i = 0; i < 16; i++) {
mach64_rectfill(sc, x, 0, 64, 64, i);
x += 64;
}
}
#endif
/*
* wsdisplay_accessops
*/
static int
mach64_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
struct lwp *l)
{
struct vcons_data *vd = v;
struct mach64_softc *sc = vd->cookie;
struct wsdisplay_fbinfo *wdf;
struct vcons_screen *ms = vd->active;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
/* XXX is this the right type to return? */
*(u_int *)data = WSDISPLAY_TYPE_PCIMISC;
return 0;
case WSDISPLAYIO_LINEBYTES:
*(u_int *)data = sc->virt_x * sc->bits_per_pixel / 8;
return 0;
case WSDISPLAYIO_GINFO:
wdf = (void *)data;
wdf->height = sc->virt_y;
wdf->width = sc->virt_x;
wdf->depth = sc->bits_per_pixel;
wdf->cmsize = 256;
return 0;
case WSDISPLAYIO_GETCMAP:
return mach64_getcmap(sc,
(struct wsdisplay_cmap *)data);
case WSDISPLAYIO_PUTCMAP:
return mach64_putcmap(sc,
(struct wsdisplay_cmap *)data);
/* PCI config read/write passthrough. */
case PCI_IOC_CFGREAD:
case PCI_IOC_CFGWRITE:
return pci_devioctl(sc->sc_pc, sc->sc_pcitag,
cmd, data, flag, l);
case WSDISPLAYIO_GET_BUSID:
return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc,
sc->sc_pcitag, data);
case WSDISPLAYIO_SMODE: {
int new_mode = *(int*)data;
if (new_mode != sc->sc_mode) {
sc->sc_mode = new_mode;
if ((new_mode == WSDISPLAYIO_MODE_EMUL)
&& (ms != NULL))
{
/* restore initial video mode */
mach64_init(sc);
mach64_init_engine(sc);
mach64_init_lut(sc);
mach64_modeswitch(sc, sc->sc_my_mode);
vcons_redraw_screen(ms);
}
}
}
return 0;
}
return EPASSTHROUGH;
}
static paddr_t
mach64_mmap(void *v, void *vs, off_t offset, int prot)
{
struct vcons_data *vd = v;
struct mach64_softc *sc = vd->cookie;
paddr_t pa;
pcireg_t reg;
#ifndef __sparc64__
/*
*'regular' framebuffer mmap()ing
* disabled on sparc64 because some ATI firmware likes to map some PCI
* resources to addresses that would collide with this ( like some Rage
* IIc which uses 0x2000 for the 2nd register block )
* Other 64bit architectures might run into similar problems.
*/
if (offset<sc->sc_apersize) {
pa = bus_space_mmap(sc->sc_memt, sc->sc_aperbase, offset,
prot, BUS_SPACE_MAP_LINEAR);
return pa;
}
#endif
/*
* restrict all other mappings to processes with superuser privileges
* or the kernel itself
*/
if (kauth_authorize_generic(kauth_cred_get(), KAUTH_GENERIC_ISSUSER,
NULL) != 0) {
return -1;
}
reg = (pci_conf_read(sc->sc_pc, sc->sc_pcitag, 0x18) & 0xffffff00);
if (reg != sc->sc_regphys) {
#ifdef DIAGNOSTIC
printf("%s: BAR 0x18 changed! (%x %x)\n",
device_xname(sc->sc_dev), (uint32_t)sc->sc_regphys,
(uint32_t)reg);
#endif
sc->sc_regphys = reg;
}
reg = (pci_conf_read(sc->sc_pc, sc->sc_pcitag, 0x10) & 0xffffff00);
if (reg != sc->sc_aperphys) {
#ifdef DIAGNOSTIC
printf("%s: BAR 0x10 changed! (%x %x)\n",
device_xname(sc->sc_dev), (uint32_t)sc->sc_aperphys,
(uint32_t)reg);
#endif
sc->sc_aperphys = reg;
}
if ((offset >= sc->sc_aperphys) &&
(offset < (sc->sc_aperphys + sc->sc_apersize))) {
pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
BUS_SPACE_MAP_LINEAR);
return pa;
}
if ((offset >= sc->sc_regphys) &&
(offset < (sc->sc_regphys + sc->sc_regsize))) {
pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
BUS_SPACE_MAP_LINEAR);
return pa;
}
if ((offset >= sc->sc_rom.vb_base) &&
(offset < (sc->sc_rom.vb_base + sc->sc_rom.vb_size))) {
pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
BUS_SPACE_MAP_LINEAR);
return pa;
}
#ifdef PCI_MAGIC_IO_RANGE
if ((offset >= PCI_MAGIC_IO_RANGE) &&
(offset <= PCI_MAGIC_IO_RANGE + 0x10000)) {
return bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE,
0, prot, BUS_SPACE_MAP_LINEAR);
}
#endif
return -1;
}
/* set ri->ri_bits according to fb, ri_xorigin and ri_yorigin */
static void
set_address(struct rasops_info *ri, void *fb)
{
#ifdef notdef
printf(" %d %d %d\n", ri->ri_xorigin, ri->ri_yorigin, ri->ri_stride);
#endif
ri->ri_bits = (void *)((char *)fb + ri->ri_stride * ri->ri_yorigin +
ri->ri_xorigin);
}
#if 0
static int
mach64_load_font(void *v, void *cookie, struct wsdisplay_font *data)
{
return 0;
}
#endif
void
machfb_blank(struct mach64_softc *sc, int blank)
{
uint32_t reg;
#define MACH64_BLANK (CRTC_DISPLAY_DIS | CRTC_HSYNC_DIS | CRTC_VSYNC_DIS)
switch (blank)
{
case 0:
reg = regr(sc, CRTC_GEN_CNTL);
regw(sc, CRTC_GEN_CNTL, reg & ~(MACH64_BLANK));
sc->sc_blanked = 0;
break;
case 1:
reg = regr(sc, CRTC_GEN_CNTL);
regw(sc, CRTC_GEN_CNTL, reg | (MACH64_BLANK));
sc->sc_blanked = 1;
break;
default:
break;
}
}
/* framebuffer device support */
#ifdef __sparc__
static void
machfb_unblank(device_t dev)
{
struct mach64_softc *sc = device_private(dev);
machfb_blank(sc, 0);
}
static void
machfb_fbattach(struct mach64_softc *sc)
{
struct fbdevice *fb = &sc->sc_fb;
fb->fb_device = sc->sc_dev;
fb->fb_driver = &machfb_fbdriver;
fb->fb_type.fb_cmsize = 256;
fb->fb_type.fb_size = sc->memsize;
fb->fb_type.fb_type = FBTYPE_GENERIC_PCI;
fb->fb_flags = sc->sc_dev->dv_cfdata->cf_flags & FB_USERMASK;
fb->fb_type.fb_depth = sc->bits_per_pixel;
fb->fb_type.fb_width = sc->virt_x;
fb->fb_type.fb_height = sc->virt_y;
fb->fb_pixels = sc->sc_aperture;
fb_attach(fb, sc->sc_console);
}
int
machfb_fbopen(dev_t dev, int flags, int mode, struct lwp *l)
{
struct mach64_softc *sc;
sc = device_lookup_private(&machfb_cd, minor(dev));
if (sc == NULL)
return ENXIO;
sc->sc_locked = 1;
#ifdef MACHFB_DEBUG
printf("machfb_fbopen(%d)\n", minor(dev));
#endif
return 0;
}
int
machfb_fbclose(dev_t dev, int flags, int mode, struct lwp *l)
{
struct mach64_softc *sc = device_lookup_private(&machfb_cd, minor(dev));
#ifdef MACHFB_DEBUG
printf("machfb_fbclose()\n");
#endif
mach64_init_engine(sc);
mach64_init_lut(sc);
sc->sc_locked = 0;
return 0;
}
int
machfb_fbioctl(dev_t dev, u_long cmd, void *data, int flags, struct lwp *l)
{
struct mach64_softc *sc = device_lookup_private(&machfb_cd, minor(dev));
#ifdef MACHFB_DEBUG
printf("machfb_fbioctl(%d, %lx)\n", minor(dev), cmd);
#endif
switch (cmd) {
case FBIOGTYPE:
*(struct fbtype *)data = sc->sc_fb.fb_type;
break;
case FBIOGATTR:
#define fba ((struct fbgattr *)data)
fba->real_type = sc->sc_fb.fb_type.fb_type;
fba->owner = 0; /* XXX ??? */
fba->fbtype = sc->sc_fb.fb_type;
fba->sattr.flags = 0;
fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type;
fba->sattr.dev_specific[0] = sc->sc_nbus;
fba->sattr.dev_specific[1] = sc->sc_ndev;
fba->sattr.dev_specific[2] = sc->sc_nfunc;
fba->sattr.dev_specific[3] = -1;
fba->emu_types[0] = sc->sc_fb.fb_type.fb_type;
fba->emu_types[1] = -1;
#undef fba
break;
#if 0
case FBIOGETCMAP:
#define p ((struct fbcmap *)data)
return bt_getcmap(p, &sc->sc_cmap, 256, 1);
case FBIOPUTCMAP:
/* copy to software map */
error = bt_putcmap(p, &sc->sc_cmap, 256, 1);
if (error)
return error;
/* now blast them into the chip */
/* XXX should use retrace interrupt */
cg6_loadcmap(sc, p->index, p->count);
#undef p
break;
#endif
case FBIOGVIDEO:
*(int *)data = sc->sc_blanked;
break;
case FBIOSVIDEO:
machfb_blank(sc, *(int *)data);
break;
#if 0
case FBIOGCURSOR:
break;
case FBIOSCURSOR:
break;
case FBIOGCURPOS:
*(struct fbcurpos *)data = sc->sc_cursor.cc_pos;
break;
case FBIOSCURPOS:
sc->sc_cursor.cc_pos = *(struct fbcurpos *)data;
break;
case FBIOGCURMAX:
/* max cursor size is 32x32 */
((struct fbcurpos *)data)->x = 32;
((struct fbcurpos *)data)->y = 32;
break;
#endif
case PCI_IOC_CFGREAD:
case PCI_IOC_CFGWRITE: {
int ret;
ret = pci_devioctl(sc->sc_pc, sc->sc_pcitag,
cmd, data, flags, l);
#ifdef MACHFB_DEBUG
printf("pci_devioctl: %d\n", ret);
#endif
return ret;
}
case WSDISPLAYIO_GET_BUSID:
return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc,
sc->sc_pcitag, data);
default:
#ifdef MACHFB_DEBUG
log(LOG_NOTICE, "machfb_fbioctl(0x%lx) (%s[%d])\n", cmd,
p->p_comm, p->p_pid);
#endif
return ENOTTY;
}
#ifdef MACHFB_DEBUG
printf("machfb_fbioctl done\n");
#endif
return 0;
}
paddr_t
machfb_fbmmap(dev_t dev, off_t off, int prot)
{
struct mach64_softc *sc = device_lookup_private(&machfb_cd, minor(dev));
if (sc != NULL)
return mach64_mmap(&sc->vd, NULL, off, prot);
return 0;
}
#endif /* __sparc__ */
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