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w100lcd.c revision 1.2
      1 /* $NetBSD: w100lcd.c,v 1.2 2012/02/10 11:25:42 tsutsui Exp $ */
      2 /*
      3  * Copyright (c) 2002, 2003  Genetec Corporation.  All rights reserved.
      4  * Written by Hiroyuki Bessho for Genetec Corporation.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of Genetec Corporation may not be used to endorse or
     15  *    promote products derived from this software without specific prior
     16  *    written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
     19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GENETEC CORPORATION
     22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28  * POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 /*
     32  * LCD driver for Sharp Zaurus SL-C7x0/860, based on zlcd.c.
     33  *
     34  * Controlling LCD is done in w100.c.
     35  *
     36  * Codes in this file provide platform specific things including:
     37  *   LCD panel geometry
     38  *
     39  * LCD on/off switch and backlight brightness are done in lcdctl.c.
     40  */
     41 #include <sys/cdefs.h>
     42 __KERNEL_RCSID(0, "$NetBSD: w100lcd.c,v 1.2 2012/02/10 11:25:42 tsutsui Exp $");
     43 
     44 #include <sys/param.h>
     45 #include <sys/systm.h>
     46 #include <sys/bus.h>
     47 
     48 #include <dev/cons.h>
     49 #include <dev/wscons/wsconsio.h>
     50 #include <dev/wscons/wsdisplayvar.h>
     51 #include <dev/rasops/rasops.h>
     52 #include <dev/wsfont/wsfont.h>
     53 
     54 #include <dev/hpc/hpcfbio.h>
     55 
     56 #include <arm/xscale/pxa2x0var.h>
     57 #include <zaurus/dev/w100var.h>
     58 
     59 #include <zaurus/zaurus/zaurus_var.h>
     60 #include <zaurus/dev/w100lcdvar.h>
     61 
     62 /*
     63  * wsdisplay glue
     64  */
     65 static struct w100_wsscreen_descr w100lcd_std_screen = {
     66 	.c = {
     67 		.name = "std",
     68 		.textops = &w100_emulops,
     69 		.fontwidth = 8,
     70 		.fontheight = 16,
     71 		.capabilities = WSSCREEN_WSCOLORS,
     72 	},
     73 	.depth = 16,			/* bits per pixel */
     74 	.flags = 0,
     75 };
     76 
     77 static const struct wsscreen_descr *w100lcd_scr_descr[] = {
     78 	&w100lcd_std_screen.c
     79 };
     80 
     81 static const struct wsscreen_list w100lcd_screen_list = {
     82 	.nscreens = __arraycount(w100lcd_scr_descr),
     83 	.screens = w100lcd_scr_descr,
     84 };
     85 
     86 static int	w100lcd_ioctl(void *, void *, u_long, void *, int,
     87 		    struct lwp *);
     88 static int	w100lcd_show_screen(void *, void *, int,
     89 		    void (*)(void *, int, int), void *);
     90 
     91 struct wsdisplay_accessops w100lcd_accessops = {
     92 	w100lcd_ioctl,
     93 	w100_mmap,
     94 	w100_alloc_screen,
     95 	w100_free_screen,
     96 	w100lcd_show_screen,
     97 	NULL,
     98 	NULL,
     99 	NULL,
    100 };
    101 
    102 const struct w100_panel_geometry lcd_panel_geometry_c700 =
    103 {
    104 	480,			/* Width */
    105 	640,			/* Height */
    106 	W100_PANEL_ROTATE_CW,   /* Rotate */
    107 };
    108 
    109 static int	w100lcd_match(device_t, cfdata_t, void *);
    110 static void	w100lcd_attach(device_t, device_t, void *);
    111 
    112 CFATTACH_DECL_NEW(w100lcd, sizeof(struct w100_softc),
    113     w100lcd_match, w100lcd_attach, NULL, NULL);
    114 
    115 static bool	w100lcd_suspend(device_t, const pmf_qual_t *);
    116 static bool	w100lcd_resume(device_t, const pmf_qual_t *);
    117 
    118 static int
    119 w100lcd_match(device_t parent, cfdata_t cf, void *aux)
    120 {
    121 
    122 	if (ZAURUS_ISC860)
    123 		return 1;
    124 	return 0;
    125 }
    126 
    127 static void
    128 w100lcd_attach(device_t parent, device_t self, void *aux)
    129 {
    130 	struct w100_softc *sc = device_private(self);
    131 	struct pxaip_attach_args *pxa = (struct pxaip_attach_args *)aux;
    132 	struct wsemuldisplaydev_attach_args aa;
    133 
    134 	sc->dev = self;
    135 
    136 	w100_attach_subr(sc, pxa->pxa_iot, &lcd_panel_geometry_c700);
    137 
    138 	aa.console = glass_console;
    139 	aa.scrdata = &w100lcd_screen_list;
    140 	aa.accessops = &w100lcd_accessops;
    141 	aa.accesscookie = sc;
    142 
    143 	(void)config_found(self, &aa, wsemuldisplaydevprint);
    144 
    145 	if (!pmf_device_register(self, w100lcd_suspend, w100lcd_resume))
    146 		aprint_error_dev(self, "couldn't establish power handler\n");
    147 }
    148 
    149 void
    150 w100lcd_cnattach(void)
    151 {
    152 
    153 	if (ZAURUS_ISC860)
    154 		w100_cnattach(&w100lcd_std_screen, &lcd_panel_geometry_c700);
    155 }
    156 
    157 /*
    158  * power management
    159  */
    160 static bool
    161 w100lcd_suspend(device_t dv, const pmf_qual_t *qual)
    162 {
    163 	struct w100_softc *sc = device_private(dv);
    164 
    165 #if NLCDCTL > 0
    166 	lcdctl_onoff(false);
    167 #endif
    168 	w100_suspend(sc);
    169 
    170 	return true;
    171 }
    172 
    173 static bool
    174 w100lcd_resume(device_t dv, const pmf_qual_t *qual)
    175 {
    176 	struct w100_softc *sc = device_private(dv);
    177 
    178 	w100_resume(sc);
    179 #if NLCDCTL > 0
    180 	lcdctl_onoff(true);
    181 #endif
    182 
    183 	return true;
    184 }
    185 
    186 /*
    187  * wsdisplay accessops overrides
    188  */
    189 static int
    190 w100lcd_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
    191     struct lwp *l)
    192 {
    193 	struct w100_softc *sc = (struct w100_softc *)v;
    194 	struct hpcfb_fbconf *fbconf;
    195 	struct hpcfb_dspconf *dspconf;
    196 	int res = EINVAL;
    197 
    198 	switch (cmd) {
    199 #if NLCDCTL > 0
    200 	case WSDISPLAYIO_GETPARAM:
    201 	case WSDISPLAYIO_SETPARAM:
    202 		res = lcdctl_param(cmd, (struct wsdisplay_param *)data);
    203 		break;
    204 #endif
    205 	case HPCFBIO_GCONF:
    206 		fbconf = (struct hpcfb_fbconf *)data;
    207 		if (fbconf->hf_conf_index != 0 &&
    208 		    fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
    209 			break;
    210 		}
    211 
    212 		fbconf->hf_conf_index = 0;
    213 		fbconf->hf_nconfs = 1;
    214 		fbconf->hf_class = HPCFB_CLASS_RGBCOLOR;
    215 		strlcpy(fbconf->hf_name, "Sharp Zaurus frame buffer",
    216 		    sizeof(fbconf->hf_name));
    217 		strlcpy(fbconf->hf_conf_name, "default",
    218 		    sizeof(fbconf->hf_conf_name));
    219 		fbconf->hf_width = sc->display_width;
    220 		fbconf->hf_height = sc->display_height;
    221 		fbconf->hf_baseaddr = (u_long)sc->active->buf_va;
    222 		fbconf->hf_offset = 0;
    223 		fbconf->hf_bytes_per_line = sc->display_width *
    224 		    sc->active->depth / 8;
    225 		fbconf->hf_nplanes = 1;
    226 		fbconf->hf_bytes_per_plane = sc->display_width *
    227 		    sc->display_height * sc->active->depth / 8;
    228 		fbconf->hf_pack_width = sc->active->depth;
    229 		fbconf->hf_pixels_per_pack = 1;
    230 		fbconf->hf_pixel_width = sc->active->depth;
    231 		fbconf->hf_access_flags = (0
    232 					   | HPCFB_ACCESS_BYTE
    233 					   | HPCFB_ACCESS_WORD
    234 					   | HPCFB_ACCESS_DWORD);
    235 		fbconf->hf_order_flags = 0;
    236 		fbconf->hf_reg_offset = 0;
    237 
    238 		fbconf->hf_class_data_length = sizeof(struct hf_rgb_tag);
    239 		fbconf->hf_u.hf_rgb.hf_flags = 0;
    240 		fbconf->hf_u.hf_rgb.hf_red_width = 5;
    241 		fbconf->hf_u.hf_rgb.hf_red_shift = 11;
    242 		fbconf->hf_u.hf_rgb.hf_green_width = 6;
    243 		fbconf->hf_u.hf_rgb.hf_green_shift = 5;
    244 		fbconf->hf_u.hf_rgb.hf_blue_width = 5;
    245 		fbconf->hf_u.hf_rgb.hf_blue_shift = 0;
    246 		fbconf->hf_u.hf_rgb.hf_alpha_width = 0;
    247 		fbconf->hf_u.hf_rgb.hf_alpha_shift = 0;
    248 
    249 		fbconf->hf_ext_size = 0;
    250 		fbconf->hf_ext_data = NULL;
    251 
    252 		res = 0;
    253 		break;
    254 
    255 	case HPCFBIO_SCONF:
    256 		fbconf = (struct hpcfb_fbconf *)data;
    257 		if (fbconf->hf_conf_index != 0 &&
    258 		    fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
    259 			break;
    260 		}
    261 		/* nothing to do because we have only one configuration */
    262 		res = 0;
    263 		break;
    264 
    265 	case HPCFBIO_GDSPCONF:
    266 		dspconf = (struct hpcfb_dspconf *)data;
    267 		if ((dspconf->hd_unit_index != 0 &&
    268 		     dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
    269 		    (dspconf->hd_conf_index != 0 &&
    270 		     dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
    271 			break;
    272 		}
    273 
    274 		dspconf->hd_unit_index = 0;
    275 		dspconf->hd_nunits = 1;
    276 		dspconf->hd_class = HPCFB_DSP_CLASS_COLORLCD;
    277 		strlcpy(dspconf->hd_name, "Sharp Zaurus LCD",
    278 		    sizeof(dspconf->hd_name));
    279 		dspconf->hd_op_flags = 0;
    280 		dspconf->hd_conf_index = 0;
    281 		dspconf->hd_nconfs = 1;
    282 		strlcpy(dspconf->hd_conf_name, "default",
    283 		    sizeof(dspconf->hd_conf_name));
    284 		dspconf->hd_width = sc->display_width;
    285 		dspconf->hd_height = sc->display_height;
    286 		dspconf->hd_xdpi = HPCFB_DSP_DPI_UNKNOWN;
    287 		dspconf->hd_ydpi = HPCFB_DSP_DPI_UNKNOWN;
    288 
    289 		res = 0;
    290 		break;
    291 
    292 	case HPCFBIO_SDSPCONF:
    293 		dspconf = (struct hpcfb_dspconf *)data;
    294 		if ((dspconf->hd_unit_index != 0 &&
    295 		     dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
    296 		    (dspconf->hd_conf_index != 0 &&
    297 		     dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
    298 			break;
    299 		}
    300 		/*
    301 		 * nothing to do
    302 		 * because we have only one unit and one configuration
    303 		 */
    304 		res = 0;
    305 		break;
    306 
    307 	case HPCFBIO_GOP:
    308 	case HPCFBIO_SOP:
    309 		/* curently not implemented...  */
    310 		break;
    311 
    312 	default:
    313 		break;
    314 	}
    315 
    316 	if (res == EINVAL)
    317 		res = w100_ioctl(v, vs, cmd, data, flag, l);
    318 
    319 	return res;
    320 }
    321 
    322 static int
    323 w100lcd_show_screen(void *v, void *cookie, int waitok,
    324     void (*cb_func)(void *, int, int), void *cb_arg)
    325 {
    326 	int error;
    327 
    328 	error = w100_show_screen(v, cookie, waitok, cb_func, cb_arg);
    329 	if (error)
    330 		return (error);
    331 
    332 	/* Turn on LCD */
    333 #if NLCDCTL > 0
    334 	lcdctl_onoff(true);
    335 #endif
    336 
    337 	return 0;
    338 }
    339