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NetBSD/sys/arch/hpcarm/dev/ipaq_lcd.c
atatat 31144d9976 Convert ioctl code to use EPASSTHROUGH instead of -1 or ENOTTY for 
indicating an unhandled "command".  ERESTART is -1, which can lead to
confusion.  ERESTART has been moved to -3 and EPASSTHROUGH has been
placed at -4.  No ioctl code should now return -1 anywhere.  The
ioctl() system call is now properly restartable.
2002-03-17 19:40:26 +00:00

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/* $NetBSD: ipaq_lcd.c,v 1.7 2002/03/17 19:40:38 atatat Exp $ */
#define IPAQ_LCD_DEBUG
/*
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Ichiro FUKUHARA (ichiro@ichiro.org).
*
* 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 NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/time.h>
#include <sys/device.h>
#include <uvm/uvm_extern.h>
#include <dev/wscons/wsconsio.h>
#include <machine/bootinfo.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <arm/cpufunc.h>
#include <arm/arm32/katelib.h>
#include <hpcarm/sa11x0/sa11x0_reg.h>
#include <hpcarm/sa11x0/sa11x0_gpioreg.h>
#include <hpcarm/dev/ipaq_gpioreg.h>
#include <hpcarm/dev/ipaq_saipvar.h>
#include <hpcarm/dev/ipaq_lcdreg.h>
#include <hpcarm/dev/ipaq_lcdvar.h>
#ifdef IPAQ_LCD_DEBUG
#define DPRINTFN(n, x) if (ipaqlcddebug > (n)) printf x
int ipaqlcddebug = 0xff;
#else
#define DPRINTFN(n, x)
#endif
#define DPRINTF(x) DPRINTFN(0, x)
static int ipaqlcd_match(struct device *, struct cfdata *, void *);
static void ipaqlcd_attach(struct device *, struct device *, void *);
static void ipaqlcd_init(struct ipaqlcd_softc *);
static int ipaqlcd_fbinit(struct ipaqlcd_softc *);
static int ipaqlcd_ioctl(void *, u_long, caddr_t, int, struct proc *);
static paddr_t ipaqlcd_mmap(void *, off_t offset, int);
#if defined __mips__ || defined __sh__ || defined __arm__
#define __BTOP(x) ((paddr_t)(x) >> PGSHIFT)
#define __PTOB(x) ((paddr_t)(x) << PGSHIFT)
#else
#error "define btop, ptob."
#endif
struct cfattach ipaqlcd_ca = {
sizeof(struct ipaqlcd_softc), ipaqlcd_match, ipaqlcd_attach
};
struct hpcfb_accessops ipaqlcd_ha = {
ipaqlcd_ioctl, ipaqlcd_mmap
};
static int console_flag = 0;
static int
ipaqlcd_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
return (1);
}
void
ipaqlcd_attach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct ipaqlcd_softc *sc = (struct ipaqlcd_softc*)self;
struct hpcfb_attach_args ha;
struct ipaq_softc *psc = (struct ipaq_softc *)parent;
sc->sc_iot = psc->sc_iot;
sc->sc_parent = (struct ipaq_softc *)parent;
ipaqlcd_init(sc);
ipaqlcd_fbinit(sc);
printf("\n");
printf("%s: iPAQ internal LCD controller\n", sc->sc_dev.dv_xname);
DPRINTF(("framebuffer_baseaddr=%lx\n", (u_long)bootinfo->fb_addr));
ha.ha_console = console_flag;
ha.ha_accessops = &ipaqlcd_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(&sc->sc_dev, &ha, hpcfbprint);
}
void
ipaqlcd_init(sc)
struct ipaqlcd_softc *sc;
{
/* Initialization of Extended GPIO */
sc->sc_parent->ipaq_egpio |= EGPIO_LCD_INIT;
bus_space_write_2(sc->sc_iot, sc->sc_parent->sc_egpioh,
0, sc->sc_parent->ipaq_egpio);
if (bus_space_map(sc->sc_iot, SALCD_BASE, SALCD_NPORTS,
0, &sc->sc_ioh))
panic("ipaqlcd_init:Cannot map registers\n");
(u_long)bootinfo->fb_addr =
bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_BA1);
/*
* Initialize LCD Control Register 0 - 3
* must initialize DMA Channel Base Address Register
* before enabling LCD(LEN = 1)
*/
bus_space_write_4(sc->sc_iot, sc->sc_ioh,
SALCD_CR1, IPAQ_LCCR1);
bus_space_write_4(sc->sc_iot, sc->sc_ioh,
SALCD_CR2, IPAQ_LCCR2);
bus_space_write_4(sc->sc_iot, sc->sc_ioh,
SALCD_CR3, IPAQ_LCCR3);
bus_space_write_4(sc->sc_iot, sc->sc_ioh,
SALCD_CR0, IPAQ_LCCR0);
DPRINTF(("\n"
"DMA_BASE= %08x : DMA_CUR = %08x \n"
"LCCR0 = %08x : LCCR1 = %08x \n"
"LCCR2 = %08x : LCCR3 = %08x",
bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_BA1),
bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CA1),
bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CR0),
bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CR1),
bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CR2),
bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CR3)));
}
int
ipaqlcd_fbinit(sc)
struct ipaqlcd_softc *sc;
{
struct hpcfb_fbconf *fb;
fb = &sc->sc_fbconf;
/* Initialize fb */
memset(fb, 0, sizeof(*fb));
fb->hf_conf_index = 0; /* configuration index */
fb->hf_nconfs = 1;
strcpy(fb->hf_name, "built-in video");
strcpy(fb->hf_conf_name, "LCD");
/* configuration name */
fb->hf_height = bootinfo->fb_height;
fb->hf_width = bootinfo->fb_width;
if (bus_space_map(sc->sc_iot, (bus_addr_t)bootinfo->fb_addr,
bootinfo->fb_height * bootinfo->fb_line_bytes,
0, &fb->hf_baseaddr)) {
printf("unable to map framebuffer\n");
return (-1);
}
fb->hf_offset = (u_long)bootinfo->fb_addr -
__PTOB(__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;
case BIFB_D2_M2L_0:
case BIFB_D2_M2L_0x2:
fb->hf_class = HPCFB_CLASS_GRAYSCALE;
break;
case BIFB_D4_M2L_F:
case BIFB_D4_M2L_Fx2:
fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
case BIFB_D4_M2L_0:
case BIFB_D4_M2L_0x2:
fb->hf_class = HPCFB_CLASS_GRAYSCALE;
break;
/*
* indexed color
*/
case BIFB_D8_FF:
case BIFB_D8_00:
fb->hf_offset = 0x200;
break;
/*
* RGB color
*/
case BIFB_D16_FFFF:
case BIFB_D16_0000:
fb->hf_class = HPCFB_CLASS_RGBCOLOR;
fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
fb->hf_order_flags = HPCFB_REVORDER_BYTE;
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);
}
int
ipaqlcd_ioctl(v, cmd, data, flag, p)
void *v;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
struct ipaqlcd_softc *sc = (struct ipaqlcd_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);
return (0);
case WSDISPLAYIO_PUTCMAP:
return (EINVAL);
case WSDISPLAYIO_GETPARAM:
dispparam = (struct wsdisplay_param*)data;
switch (dispparam->param) {
case WSDISPLAYIO_PARAM_BACKLIGHT:
DPRINTF(("ipaqlcd_ioctl: GETPARAM:BACKLIGHT\n"));
return (EINVAL);
case WSDISPLAYIO_PARAM_CONTRAST:
DPRINTF(("ipaqlcd_ioctl: GETPARAM:CONTRAST\n"));
return (EINVAL);
case WSDISPLAYIO_PARAM_BRIGHTNESS:
DPRINTF(("ipaqlcd_ioctl: GETPARAM:BRIGHTNESS\n"));
return (EINVAL);
default:
return (EINVAL);
}
return (0);
case WSDISPLAYIO_SETPARAM:
dispparam = (struct wsdisplay_param*)data;
switch (dispparam->param) {
case WSDISPLAYIO_PARAM_BACKLIGHT:
DPRINTF(("ipaqlcd_ioctl: GETPARAM:BACKLIGHT\n"));
return (EINVAL);
case WSDISPLAYIO_PARAM_CONTRAST:
DPRINTF(("ipaqlcd_ioctl: GETPARAM:CONTRAST\n"));
return (EINVAL);
case WSDISPLAYIO_PARAM_BRIGHTNESS:
DPRINTF(("ipaqlcd_ioctl: GETPARAM:BRIGHTNESS\n"));
return (EINVAL);
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:
return (EINVAL);
}
return (EPASSTHROUGH);
}
paddr_t
ipaqlcd_mmap(ctx, offset, prot)
void *ctx;
off_t offset;
int prot;
{
struct ipaqlcd_softc *sc = (struct ipaqlcd_softc *)ctx;
if (offset < 0 ||
(sc->sc_fbconf.hf_bytes_per_plane +
sc->sc_fbconf.hf_offset) < offset)
return -1;
return __BTOP((u_long)bootinfo->fb_addr + offset);
}
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