1 /* $NetBSD: ipaq_lcd.c,v 1.22 2021/08/07 16:18:53 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Ichiro FUKUHARA (ichiro (at) ichiro.org). 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: ipaq_lcd.c,v 1.22 2021/08/07 16:18:53 thorpej Exp $"); 34 35 #define IPAQ_LCD_DEBUG 36 37 #include <sys/types.h> 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/time.h> 42 #include <sys/device.h> 43 #include <sys/bus.h> 44 45 #include <uvm/uvm_extern.h> 46 47 #include <dev/wscons/wsconsio.h> 48 49 #include <machine/bootinfo.h> 50 #include <machine/intr.h> 51 #include <arm/cpufunc.h> 52 53 #include <arm/sa11x0/sa11x0_reg.h> 54 #include <arm/sa11x0/sa11x0_gpioreg.h> 55 56 #include <hpcarm/dev/ipaq_gpioreg.h> 57 #include <hpcarm/dev/ipaq_saipvar.h> 58 #include <hpcarm/dev/ipaq_lcdreg.h> 59 #include <hpcarm/dev/ipaq_lcdvar.h> 60 61 #ifdef IPAQ_LCD_DEBUG 62 #define DPRINTFN(n, x) if (ipaqlcddebug > (n)) aprint_normal x 63 int ipaqlcddebug = 0xff; 64 #else 65 #define DPRINTFN(n, x) 66 #endif 67 #define DPRINTF(x) DPRINTFN(0, x) 68 69 static int ipaqlcd_match(device_t, cfdata_t, void *); 70 static void ipaqlcd_attach(device_t, device_t, void *); 71 static void ipaqlcd_init(struct ipaqlcd_softc *); 72 static int ipaqlcd_fbinit(struct ipaqlcd_softc *); 73 static int ipaqlcd_ioctl(void *, u_long, void *, int, struct lwp *); 74 static paddr_t ipaqlcd_mmap(void *, off_t, int); 75 76 #if defined __mips__ || defined __sh__ || defined __arm__ 77 #define __BTOP(x) ((paddr_t)(x) >> PGSHIFT) 78 #define __PTOB(x) ((paddr_t)(x) << PGSHIFT) 79 #else 80 #error "define btop, ptob." 81 #endif 82 83 CFATTACH_DECL_NEW(ipaqlcd, sizeof(struct ipaqlcd_softc), 84 ipaqlcd_match, ipaqlcd_attach, NULL, NULL); 85 86 struct hpcfb_accessops ipaqlcd_ha = { 87 ipaqlcd_ioctl, ipaqlcd_mmap 88 }; 89 static int console_flag = 0; 90 91 static int 92 ipaqlcd_match(device_t parent, cfdata_t match, void *aux) 93 { 94 return (1); 95 } 96 97 void 98 ipaqlcd_attach(device_t parent, device_t self, void *aux) 99 { 100 struct ipaqlcd_softc *sc = device_private(self); 101 struct hpcfb_attach_args ha; 102 struct ipaq_softc *psc = device_private(parent); 103 104 sc->sc_dev = self; 105 sc->sc_iot = psc->sc_iot; 106 sc->sc_parent = psc; 107 108 ipaqlcd_init(sc); 109 ipaqlcd_fbinit(sc); 110 111 aprint_normal("\n"); 112 aprint_normal_dev(self, "iPAQ internal LCD controller\n"); 113 114 DPRINTF(("framebuffer_baseaddr=%lx\n", (u_long)bootinfo->fb_addr)); 115 116 ha.ha_console = console_flag; 117 ha.ha_accessops = &ipaqlcd_ha; 118 ha.ha_accessctx = sc; 119 ha.ha_curfbconf = 0; 120 ha.ha_nfbconf = 1; 121 ha.ha_fbconflist = &sc->sc_fbconf; 122 ha.ha_curdspconf = 0; 123 ha.ha_ndspconf = 1; 124 ha.ha_dspconflist = &sc->sc_dspconf; 125 126 config_found(sc->sc_dev, &ha, hpcfbprint, CFARGS_NONE); 127 } 128 129 void 130 ipaqlcd_init(struct ipaqlcd_softc *sc) 131 { 132 /* Initialization of Extended GPIO */ 133 sc->sc_parent->ipaq_egpio |= EGPIO_LCD_INIT; 134 bus_space_write_2(sc->sc_iot, sc->sc_parent->sc_egpioh, 135 0, sc->sc_parent->ipaq_egpio); 136 137 if (bus_space_map(sc->sc_iot, SALCD_BASE, SALCD_NPORTS, 138 0, &sc->sc_ioh)) 139 panic("ipaqlcd_init:Cannot map registers"); 140 141 bootinfo->fb_addr = (void *) 142 bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_BA1); 143 144 /* 145 * Initialize LCD Control Register 0 - 3 146 * must initialize DMA Channel Base Address Register 147 * before enabling LCD(LEN = 1) 148 */ 149 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 150 SALCD_CR1, IPAQ_LCCR1); 151 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 152 SALCD_CR2, IPAQ_LCCR2); 153 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 154 SALCD_CR3, IPAQ_LCCR3); 155 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 156 SALCD_CR0, IPAQ_LCCR0); 157 158 DPRINTF(("\n" 159 "DMA_BASE= %08x : DMA_CUR = %08x \n" 160 "LCCR0 = %08x : LCCR1 = %08x \n" 161 "LCCR2 = %08x : LCCR3 = %08x", 162 bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_BA1), 163 bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CA1), 164 bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CR0), 165 bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CR1), 166 bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CR2), 167 bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CR3))); 168 169 } 170 171 int 172 ipaqlcd_fbinit(struct ipaqlcd_softc *sc) 173 { 174 struct hpcfb_fbconf *fb; 175 176 fb = &sc->sc_fbconf; 177 178 /* Initialize fb */ 179 memset(fb, 0, sizeof(*fb)); 180 181 fb->hf_conf_index = 0; /* configuration index */ 182 fb->hf_nconfs = 1; 183 strcpy(fb->hf_name, "built-in video"); 184 strcpy(fb->hf_conf_name, "LCD"); 185 /* configuration name */ 186 fb->hf_height = bootinfo->fb_height; 187 fb->hf_width = bootinfo->fb_width; 188 189 if (bus_space_map(sc->sc_iot, (bus_addr_t)bootinfo->fb_addr, 190 bootinfo->fb_height * bootinfo->fb_line_bytes, 191 0, &fb->hf_baseaddr)) { 192 aprint_normal("unable to map framebuffer\n"); 193 return (-1); 194 } 195 196 fb->hf_offset = (u_long)bootinfo->fb_addr - 197 __PTOB(__BTOP(bootinfo->fb_addr)); 198 /* frame buffer start offset */ 199 fb->hf_bytes_per_line = bootinfo->fb_line_bytes; 200 fb->hf_nplanes = 1; 201 fb->hf_bytes_per_plane = bootinfo->fb_height * 202 bootinfo->fb_line_bytes; 203 204 fb->hf_access_flags |= HPCFB_ACCESS_BYTE; 205 fb->hf_access_flags |= HPCFB_ACCESS_WORD; 206 fb->hf_access_flags |= HPCFB_ACCESS_DWORD; 207 208 switch (bootinfo->fb_type) { 209 /* 210 * gray scale 211 */ 212 case BIFB_D2_M2L_3: 213 case BIFB_D2_M2L_3x2: 214 fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; 215 case BIFB_D2_M2L_0: 216 case BIFB_D2_M2L_0x2: 217 fb->hf_class = HPCFB_CLASS_GRAYSCALE; 218 break; 219 case BIFB_D4_M2L_F: 220 case BIFB_D4_M2L_Fx2: 221 fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; 222 case BIFB_D4_M2L_0: 223 case BIFB_D4_M2L_0x2: 224 fb->hf_class = HPCFB_CLASS_GRAYSCALE; 225 break; 226 /* 227 * indexed color 228 */ 229 case BIFB_D8_FF: 230 case BIFB_D8_00: 231 fb->hf_offset = 0x200; 232 break; 233 /* 234 * RGB color 235 */ 236 case BIFB_D16_FFFF: 237 case BIFB_D16_0000: 238 fb->hf_class = HPCFB_CLASS_RGBCOLOR; 239 fb->hf_access_flags |= HPCFB_ACCESS_STATIC; 240 fb->hf_order_flags = HPCFB_REVORDER_BYTE; 241 fb->hf_pack_width = 16; 242 fb->hf_pixels_per_pack = 1; 243 fb->hf_pixel_width = 16; 244 245 fb->hf_class_data_length = sizeof(struct hf_rgb_tag); 246 fb->hf_u.hf_rgb.hf_flags = 0; 247 /* reserved for future use */ 248 fb->hf_u.hf_rgb.hf_red_width = 5; 249 fb->hf_u.hf_rgb.hf_red_shift = 11; 250 fb->hf_u.hf_rgb.hf_green_width = 6; 251 fb->hf_u.hf_rgb.hf_green_shift = 5; 252 fb->hf_u.hf_rgb.hf_blue_width = 5; 253 fb->hf_u.hf_rgb.hf_blue_shift = 0; 254 fb->hf_u.hf_rgb.hf_alpha_width = 0; 255 fb->hf_u.hf_rgb.hf_alpha_shift = 0; 256 break; 257 default : 258 aprint_normal("unknown type (=%d).\n", 259 bootinfo->fb_type); 260 return (-1); 261 break; 262 } 263 264 return(0); 265 } 266 267 int 268 ipaqlcd_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l) 269 { 270 struct ipaqlcd_softc *sc = (struct ipaqlcd_softc *)v; 271 struct hpcfb_fbconf *fbconf; 272 struct hpcfb_dspconf *dspconf; 273 struct wsdisplay_cmap *cmap; 274 struct wsdisplay_param *dispparam; 275 276 switch (cmd) { 277 case WSDISPLAYIO_GETCMAP: 278 cmap = (struct wsdisplay_cmap*)data; 279 280 if (sc->sc_fbconf.hf_class != HPCFB_CLASS_INDEXCOLOR || 281 sc->sc_fbconf.hf_pack_width != 8 || 282 256 <= cmap->index || 283 256 < (cmap->index + cmap->count)) 284 return (EINVAL); 285 return (0); 286 case WSDISPLAYIO_PUTCMAP: 287 return (EINVAL); 288 case WSDISPLAYIO_GETPARAM: 289 dispparam = (struct wsdisplay_param*)data; 290 switch (dispparam->param) { 291 case WSDISPLAYIO_PARAM_BACKLIGHT: 292 DPRINTF(("ipaqlcd_ioctl: GETPARAM:BACKLIGHT\n")); 293 return (EINVAL); 294 case WSDISPLAYIO_PARAM_CONTRAST: 295 DPRINTF(("ipaqlcd_ioctl: GETPARAM:CONTRAST\n")); 296 return (EINVAL); 297 case WSDISPLAYIO_PARAM_BRIGHTNESS: 298 DPRINTF(("ipaqlcd_ioctl: GETPARAM:BRIGHTNESS\n")); 299 return (EINVAL); 300 default: 301 return (EINVAL); 302 } 303 return (0); 304 case WSDISPLAYIO_SETPARAM: 305 dispparam = (struct wsdisplay_param*)data; 306 switch (dispparam->param) { 307 case WSDISPLAYIO_PARAM_BACKLIGHT: 308 DPRINTF(("ipaqlcd_ioctl: GETPARAM:BACKLIGHT\n")); 309 return (EINVAL); 310 case WSDISPLAYIO_PARAM_CONTRAST: 311 DPRINTF(("ipaqlcd_ioctl: GETPARAM:CONTRAST\n")); 312 return (EINVAL); 313 case WSDISPLAYIO_PARAM_BRIGHTNESS: 314 DPRINTF(("ipaqlcd_ioctl: GETPARAM:BRIGHTNESS\n")); 315 return (EINVAL); 316 default: 317 return (EINVAL); 318 } 319 return (0); 320 321 case HPCFBIO_GCONF: 322 fbconf = (struct hpcfb_fbconf *)data; 323 if (fbconf->hf_conf_index != 0 && 324 fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) { 325 return (EINVAL); 326 } 327 *fbconf = sc->sc_fbconf; /* structure assignment */ 328 return (0); 329 case HPCFBIO_SCONF: 330 fbconf = (struct hpcfb_fbconf *)data; 331 if (fbconf->hf_conf_index != 0 && 332 fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) { 333 return (EINVAL); 334 } 335 /* 336 * nothing to do because we have only one configuration 337 */ 338 return (0); 339 case HPCFBIO_GDSPCONF: 340 dspconf = (struct hpcfb_dspconf *)data; 341 if ((dspconf->hd_unit_index != 0 && 342 dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) || 343 (dspconf->hd_conf_index != 0 && 344 dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) { 345 return (EINVAL); 346 } 347 *dspconf = sc->sc_dspconf; /* structure assignment */ 348 return (0); 349 case HPCFBIO_SDSPCONF: 350 dspconf = (struct hpcfb_dspconf *)data; 351 if ((dspconf->hd_unit_index != 0 && 352 dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) || 353 (dspconf->hd_conf_index != 0 && 354 dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) { 355 return (EINVAL); 356 } 357 /* 358 * nothing to do 359 * because we have only one unit and one configuration 360 */ 361 return (0); 362 363 case HPCFBIO_GOP: 364 case HPCFBIO_SOP: 365 return (EINVAL); 366 } 367 return (EPASSTHROUGH); 368 } 369 370 paddr_t 371 ipaqlcd_mmap(void *ctx, off_t offset, int prot) 372 { 373 struct ipaqlcd_softc *sc = (struct ipaqlcd_softc *)ctx; 374 375 if (offset < 0 || 376 (sc->sc_fbconf.hf_bytes_per_plane + 377 sc->sc_fbconf.hf_offset) < offset) 378 return -1; 379 380 return __BTOP((u_long)bootinfo->fb_addr + offset); 381 } 382
Indexes created Sun Sep 21 15:09:59 GMT 2025