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NetBSD/sys/arch/hpcmips/dev/bivideo.c

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/* $NetBSD: bivideo.c,v 1.13 2000/12/03 13:43:40 takemura Exp $ */
/*-
* Copyright (c) 1999
* Shin Takemura and PocketBSD Project. 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the PocketBSD project
* and its contributors.
* 4. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
*/
#define FBDEBUG
static const char _copyright[] __attribute__ ((unused)) =
"Copyright (c) 1999 Shin Takemura. All rights reserved.";
static const char _rcsid[] __attribute__ ((unused)) =
"$Id: bivideo.c,v 1.13 2000/12/03 13:43:40 takemura Exp $";
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/conf.h>
#include <sys/malloc.h>
#include <sys/buf.h>
#include <sys/ioctl.h>
#include <uvm/uvm_extern.h>
#include <machine/bus.h>
#include <machine/autoconf.h>
#include <machine/bootinfo.h>
#include <machine/platid.h>
#include <machine/platid_mask.h>
#include <machine/config_hook.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/rasops/rasops.h>
#include <arch/hpcmips/dev/hpcfbvar.h>
#include <arch/hpcmips/dev/hpcfbio.h>
#include <arch/hpcmips/dev/bivideovar.h>
#include <arch/hpcmips/dev/hpccmapvar.h>
/*
* global variables
*/
int bivideo_dont_attach = 0;
/*
* function prototypes
*/
int bivideomatch __P((struct device *, struct cfdata *, void *));
void bivideoattach __P((struct device *, struct device *, void *));
int bivideo_ioctl __P((void *, u_long, caddr_t, int, struct proc *));
paddr_t bivideo_mmap __P((void *, off_t, int));
struct bivideo_softc {
struct device sc_dev;
struct hpcfb_fbconf sc_fbconf;
struct hpcfb_dspconf sc_dspconf;
void *sc_powerhook; /* power management hook */
int sc_powerstate;
#define PWRSTAT_SUSPEND (1<<0)
#define PWRSTAT_LCD (1<<1)
#define PWRSTAT_BACKLIGHT (1<<2)
#define PWRSTAT_ALL (0xffffffff)
};
static int bivideo_init __P((struct hpcfb_fbconf *fb));
static void bivideo_power __P((int, void *));
static void bivideo_update_powerstate __P((struct bivideo_softc *, int));
/*
* static variables
*/
struct cfattach bivideo_ca = {
sizeof(struct bivideo_softc), bivideomatch, bivideoattach,
};
struct hpcfb_accessops bivideo_ha = {
bivideo_ioctl, bivideo_mmap
};
static int console_flag = 0;
static int attach_flag = 0;
/*
* function bodies
*/
int
bivideomatch(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct mainbus_attach_args *ma = aux;
if (bivideo_dont_attach ||
strcmp(ma->ma_name, match->cf_driver->cd_name))
return 0;
return (1);
}
void
bivideoattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct bivideo_softc *sc = (struct bivideo_softc *)self;
struct hpcfb_attach_args ha;
if (attach_flag) {
panic("%s(%d): bivideo attached twice", __FILE__, __LINE__);
}
attach_flag = 1;
bivideo_init(&sc->sc_fbconf);
printf(": pseudo video controller");
if (console_flag) {
printf(", console");
}
printf("\n");
/* Add a suspend hook to power saving */
sc->sc_powerstate = 0;
sc->sc_powerhook = powerhook_establish(bivideo_power, sc);
if (sc->sc_powerhook == NULL)
printf("%s: WARNING: unable to establish power hook\n",
sc->sc_dev.dv_xname);
ha.ha_console = console_flag;
ha.ha_accessops = &bivideo_ha;
ha.ha_accessctx = sc;
ha.ha_curfbconf = 0;
ha.ha_nfbconf = 1;
ha.ha_fbconflist = &sc->sc_fbconf;
ha.ha_curdspconf = 0;
ha.ha_ndspconf = 1;
ha.ha_dspconflist = &sc->sc_dspconf;
config_found(self, &ha, hpcfbprint);
}
int
bivideo_getcnfb(fb)
struct hpcfb_fbconf *fb;
{
console_flag = 1;
return bivideo_init(fb);
}
static int
bivideo_init(fb)
struct hpcfb_fbconf *fb;
{
/*
* get fb settings from bootinfo
*/
if (bootinfo == NULL ||
bootinfo->fb_addr == 0 ||
bootinfo->fb_line_bytes == 0 ||
bootinfo->fb_width == 0 ||
bootinfo->fb_height == 0) {
printf("no frame buffer infomation.\n");
return (-1);
}
/* zero fill */
bzero(fb, sizeof(*fb));
fb->hf_conf_index = 0; /* configuration index */
fb->hf_nconfs = 1; /* how many configurations */
strcpy(fb->hf_name, "built-in video");
/* frame buffer name */
strcpy(fb->hf_conf_name, "default");
/* configuration name */
fb->hf_height = bootinfo->fb_height;
fb->hf_width = bootinfo->fb_width;
fb->hf_baseaddr = (u_long)bootinfo->fb_addr;
fb->hf_offset = (u_long)bootinfo->fb_addr -
mips_ptob(mips_btop(bootinfo->fb_addr));
/* frame buffer start offset */
fb->hf_bytes_per_line = bootinfo->fb_line_bytes;
fb->hf_nplanes = 1;
fb->hf_bytes_per_plane = bootinfo->fb_height *
bootinfo->fb_line_bytes;
fb->hf_access_flags |= HPCFB_ACCESS_BYTE;
fb->hf_access_flags |= HPCFB_ACCESS_WORD;
fb->hf_access_flags |= HPCFB_ACCESS_DWORD;
switch (bootinfo->fb_type) {
/*
* gray scale
*/
case BIFB_D2_M2L_3:
case BIFB_D2_M2L_3x2:
fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
/* fall through */
case BIFB_D2_M2L_0:
case BIFB_D2_M2L_0x2:
fb->hf_class = HPCFB_CLASS_GRAYSCALE;
fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
fb->hf_pack_width = 8;
fb->hf_pixels_per_pack = 4;
fb->hf_pixel_width = 2;
fb->hf_class_data_length = sizeof(struct hf_gray_tag);
fb->hf_u.hf_gray.hf_flags = 0; /* reserved for future use */
break;
/*
* indexed color
*/
case BIFB_D8_FF:
fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
/* fall through */
case BIFB_D8_00:
fb->hf_class = HPCFB_CLASS_INDEXCOLOR;
fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
fb->hf_pack_width = 8;
fb->hf_pixels_per_pack = 1;
fb->hf_pixel_width = 8;
fb->hf_class_data_length = sizeof(struct hf_indexed_tag);
fb->hf_u.hf_indexed.hf_flags = 0; /* reserved for future use */
break;
/*
* RGB color
*/
case BIFB_D16_FFFF:
fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
/* fall through */
case BIFB_D16_0000:
fb->hf_class = HPCFB_CLASS_RGBCOLOR;
fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
#if BYTE_ORDER == LITTLE_ENDIAN
fb->hf_swap_flags = HPCFB_SWAP_BYTE;
#endif
fb->hf_pack_width = 16;
fb->hf_pixels_per_pack = 1;
fb->hf_pixel_width = 16;
fb->hf_class_data_length = sizeof(struct hf_rgb_tag);
fb->hf_u.hf_rgb.hf_flags = 0; /* reserved for future use */
fb->hf_u.hf_rgb.hf_red_width = 5;
fb->hf_u.hf_rgb.hf_red_shift = 11;
fb->hf_u.hf_rgb.hf_green_width = 6;
fb->hf_u.hf_rgb.hf_green_shift = 5;
fb->hf_u.hf_rgb.hf_blue_width = 5;
fb->hf_u.hf_rgb.hf_blue_shift = 0;
fb->hf_u.hf_rgb.hf_alpha_width = 0;
fb->hf_u.hf_rgb.hf_alpha_shift = 0;
break;
default:
printf("unknown type (=%d).\n", bootinfo->fb_type);
return (-1);
break;
}
return (0); /* no error */
}
static void
bivideo_power(why, arg)
int why;
void *arg;
{
struct bivideo_softc *sc = arg;
switch (why) {
case PWR_SUSPEND:
case PWR_STANDBY:
sc->sc_powerstate |= PWRSTAT_SUSPEND;
bivideo_update_powerstate(sc, PWRSTAT_ALL);
break;
case PWR_RESUME:
sc->sc_powerstate &= ~PWRSTAT_SUSPEND;
bivideo_update_powerstate(sc, PWRSTAT_ALL);
break;
}
}
static void
bivideo_update_powerstate(sc, updates)
struct bivideo_softc *sc;
int updates;
{
if (updates & PWRSTAT_LCD)
config_hook_call(CONFIG_HOOK_POWERCONTROL,
CONFIG_HOOK_POWERCONTROL_LCD,
(void*)!(sc->sc_powerstate & PWRSTAT_SUSPEND));
if (updates & PWRSTAT_BACKLIGHT)
config_hook_call(CONFIG_HOOK_POWERCONTROL,
CONFIG_HOOK_POWERCONTROL_LCDLIGHT,
(void*)(!(sc->sc_powerstate & PWRSTAT_SUSPEND) &&
(sc->sc_powerstate & PWRSTAT_BACKLIGHT)));
}
int
bivideo_ioctl(v, cmd, data, flag, p)
void *v;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
struct bivideo_softc *sc = (struct bivideo_softc *)v;
struct hpcfb_fbconf *fbconf;
struct hpcfb_dspconf *dspconf;
struct wsdisplay_cmap *cmap;
struct wsdisplay_param *dispparam;
switch (cmd) {
case WSDISPLAYIO_GETCMAP:
cmap = (struct wsdisplay_cmap*)data;
if (sc->sc_fbconf.hf_class != HPCFB_CLASS_INDEXCOLOR ||
sc->sc_fbconf.hf_pack_width != 8 ||
256 <= cmap->index ||
256 < (cmap->index + cmap->count))
return (EINVAL);
if (!uvm_useracc(cmap->red, cmap->count, B_WRITE) ||
!uvm_useracc(cmap->green, cmap->count, B_WRITE) ||
!uvm_useracc(cmap->blue, cmap->count, B_WRITE))
return (EFAULT);
copyout(&bivideo_cmap_r[cmap->index], cmap->red, cmap->count);
copyout(&bivideo_cmap_g[cmap->index], cmap->green,cmap->count);
copyout(&bivideo_cmap_b[cmap->index], cmap->blue, cmap->count);
return (0);
case WSDISPLAYIO_PUTCMAP:
/*
* This driver can't set color map.
*/
return (EINVAL);
case WSDISPLAYIO_GETPARAM:
dispparam = (struct wsdisplay_param*)data;
switch (dispparam->param) {
case WSDISPLAYIO_PARAM_BACKLIGHT:
dispparam->min = 0;
dispparam->max = 1;
dispparam->curval =
(sc->sc_powerstate & PWRSTAT_BACKLIGHT) ? 1 : 0;
break;
case WSDISPLAYIO_PARAM_CONTRAST:
case WSDISPLAYIO_PARAM_BRIGHTNESS:
default:
return (EINVAL);
}
return (0);
case WSDISPLAYIO_SETPARAM:
dispparam = (struct wsdisplay_param*)data;
switch (dispparam->param) {
case WSDISPLAYIO_PARAM_BACKLIGHT:
if (dispparam->curval < 0 ||
1 < dispparam->curval)
return (EINVAL);
if (dispparam->curval == 0)
sc->sc_powerstate &= ~PWRSTAT_BACKLIGHT;
else
sc->sc_powerstate |= PWRSTAT_BACKLIGHT;
bivideo_update_powerstate(sc, PWRSTAT_BACKLIGHT);
break;
case WSDISPLAYIO_PARAM_CONTRAST:
case WSDISPLAYIO_PARAM_BRIGHTNESS:
default:
return (EINVAL);
}
return (0);
case HPCFBIO_GCONF:
fbconf = (struct hpcfb_fbconf *)data;
if (fbconf->hf_conf_index != 0 &&
fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
return (EINVAL);
}
*fbconf = sc->sc_fbconf; /* structure assignment */
return (0);
case HPCFBIO_SCONF:
fbconf = (struct hpcfb_fbconf *)data;
if (fbconf->hf_conf_index != 0 &&
fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
return (EINVAL);
}
/*
* nothing to do because we have only one configration
*/
return (0);
case HPCFBIO_GDSPCONF:
dspconf = (struct hpcfb_dspconf *)data;
if ((dspconf->hd_unit_index != 0 &&
dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
(dspconf->hd_conf_index != 0 &&
dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
return (EINVAL);
}
*dspconf = sc->sc_dspconf; /* structure assignment */
return (0);
case HPCFBIO_SDSPCONF:
dspconf = (struct hpcfb_dspconf *)data;
if ((dspconf->hd_unit_index != 0 &&
dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
(dspconf->hd_conf_index != 0 &&
dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
return (EINVAL);
}
/*
* nothing to do
* because we have only one unit and one configration
*/
return (0);
case HPCFBIO_GOP:
case HPCFBIO_SOP:
/*
* curently not implemented...
*/
return (EINVAL);
}
return (ENOTTY);
}
paddr_t
bivideo_mmap(ctx, offset, prot)
void *ctx;
off_t offset;
int prot;
{
struct bivideo_softc *sc = (struct bivideo_softc *)ctx;
if (offset < 0 ||
(sc->sc_fbconf.hf_bytes_per_plane +
sc->sc_fbconf.hf_offset) < offset)
return -1;
return mips_btop((u_long)bootinfo->fb_addr + offset);
}
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