oj6sh.c revision 1.6
1 /* $NetBSD: oj6sh.c,v 1.6 2021/01/17 21:42:35 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 2014 Genetec Corporation. All rights reserved. 5 * Written by Hashimoto Kenichi for Genetec Corporation. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORPORATION 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * Sharp NetWalker's Optical Joystick 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: oj6sh.c,v 1.6 2021/01/17 21:42:35 thorpej Exp $"); 35 36 #include "opt_oj6sh.h" 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/device.h> 42 #include <sys/lock.h> 43 #include <sys/callout.h> 44 #include <sys/bus.h> 45 #include <sys/mutex.h> 46 #include <sys/workqueue.h> 47 48 #include <dev/wscons/wsconsio.h> 49 #include <dev/wscons/wsmousevar.h> 50 #include <dev/wscons/wsdisplayvar.h> 51 52 #include <dev/hpc/hpcfbio.h> 53 #include <dev/hpc/hpctpanelvar.h> 54 55 #include <dev/spi/spivar.h> 56 57 #ifdef OJ6SH_DEBUG 58 int oj6sh_debug = OJ6SH_DEBUG; 59 #define DPRINTF(n,x) if (oj6sh_debug>(n)) printf x; 60 #else 61 #define DPRINTF(n,x) 62 #endif 63 64 #define POLLRATE (hz/30) 65 66 /* register address */ 67 #define OJ6SH_PRODUCT 0x00 68 #define OJ6SH_REVISION 0x01 69 #define OJ6SH_MOTION 0x02 70 #define OJ6SH_DELTA_X 0x03 71 #define OJ6SH_DELTA_Y 0x04 72 #define OJ6SH_SQUAL 0x05 73 #define OJ6SH_SHUTTER 0x06 74 #define OJ6SH_CONFIG 0x11 75 #define OJ6SH_RESET 0x3a 76 #define POWERON_RESET 0x5a 77 #define OJ6SH_N_REVISION 0x3e 78 #define OJ6SH_N_PRODUCT 0x3f 79 80 struct oj6sh_softc { 81 device_t sc_dev; 82 83 struct spi_handle *sc_sh; 84 struct callout sc_c; 85 86 kmutex_t sc_lock; 87 struct workqueue *sc_wq; 88 struct work sc_wk; 89 90 int sc_enabled; 91 92 device_t sc_wsmousedev; 93 }; 94 95 struct oj6sh_delta { 96 int x; 97 int y; 98 }; 99 100 static uint8_t oj6sh_read(struct spi_handle *, uint8_t); 101 static void oj6sh_write(struct spi_handle *, uint8_t, uint8_t); 102 103 static int oj6sh_match(device_t , cfdata_t , void *); 104 static void oj6sh_attach(device_t , device_t , void *); 105 106 CFATTACH_DECL_NEW(oj6sh, sizeof(struct oj6sh_softc), 107 oj6sh_match, oj6sh_attach, NULL, NULL); 108 109 static bool oj6sh_motion(struct spi_handle *); 110 static bool oj6sh_squal(struct spi_handle *); 111 static bool oj6sh_shuttrer(struct spi_handle *); 112 static int oj6sh_readdelta(struct spi_handle *, struct oj6sh_delta *); 113 114 static void oj6sh_poll(void *); 115 static void oj6sh_cb(struct work *, void *); 116 static int oj6sh_enable(void *); 117 static void oj6sh_disable(void *); 118 static int oj6sh_ioctl(void *, u_long, void *, int, struct lwp *); 119 120 static bool oj6sh_resume(device_t, const pmf_qual_t *); 121 static bool oj6sh_suspend(device_t, const pmf_qual_t *); 122 123 static const struct wsmouse_accessops oj6sh_accessops = { 124 .enable = oj6sh_enable, 125 .ioctl = oj6sh_ioctl, 126 .disable = oj6sh_disable 127 }; 128 129 static const struct device_compatible_entry compat_data[] = { 130 { .compat = "oj6sh" }, 131 132 { 0 } 133 }; 134 135 static int 136 oj6sh_match(device_t parent, cfdata_t cf, void *aux) 137 { 138 struct spi_attach_args *sa = aux; 139 140 if (spi_compatible_match(sa, cf, compat_data) == 0) 141 return 0; 142 if (spi_configure(sa->sa_handle, SPI_MODE_0, 2500000)) 143 return 0; 144 145 return 2; 146 } 147 148 static void 149 oj6sh_doattach(device_t self) 150 { 151 struct oj6sh_softc *sc = device_private(self); 152 uint8_t product; 153 uint8_t rev; 154 uint8_t product_inv; 155 uint8_t rev_inv; 156 157 /* reset */ 158 oj6sh_write(sc->sc_sh, OJ6SH_RESET, POWERON_RESET); 159 delay(10000); 160 161 /* resolution */ 162 oj6sh_write(sc->sc_sh, OJ6SH_CONFIG, 0x80); 163 164 product = oj6sh_read(sc->sc_sh, OJ6SH_PRODUCT); 165 rev = oj6sh_read(sc->sc_sh, OJ6SH_REVISION); 166 product_inv = oj6sh_read(sc->sc_sh, OJ6SH_N_PRODUCT); 167 rev_inv = oj6sh_read(sc->sc_sh, OJ6SH_N_REVISION); 168 169 if (((product | product_inv) != 0xff) || ((rev | rev_inv) != 0xff)) { 170 aprint_error_dev(self, 171 "mismatch product (%02x:%02x), rev (%02x:%02x)\n", 172 product, product_inv, rev, rev_inv); 173 return; 174 } 175 176 aprint_normal("%s: id 0x%02x, revision 0x%02x\n", 177 device_xname(sc->sc_dev), product, rev); 178 179 return; 180 } 181 182 static void 183 oj6sh_attach(device_t parent, device_t self, void *aux) 184 { 185 struct oj6sh_softc *sc = device_private(self); 186 struct spi_attach_args *sa = aux; 187 struct wsmousedev_attach_args a; 188 189 aprint_naive("\n"); 190 aprint_normal(": OJ6SH-T25 Optical Joystick\n"); 191 192 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE); 193 194 sc->sc_dev = self; 195 sc->sc_enabled = 0; 196 197 callout_init(&sc->sc_c, 0); 198 workqueue_create(&sc->sc_wq, "oj6sh", 199 oj6sh_cb, sc, PRI_NONE, IPL_BIO, 0); 200 201 sc->sc_sh = sa->sa_handle; 202 203 a.accessops = &oj6sh_accessops; 204 a.accesscookie = sc; 205 206 sc->sc_wsmousedev = config_found(self, &a, wsmousedevprint); 207 208 config_interrupts(self, oj6sh_doattach); 209 } 210 211 static void 212 oj6sh_poll(void *arg) 213 { 214 struct oj6sh_softc *sc = (struct oj6sh_softc *)arg; 215 workqueue_enqueue(sc->sc_wq, &sc->sc_wk, NULL); 216 } 217 218 static void 219 oj6sh_cb(struct work *wk, void *arg) 220 { 221 struct oj6sh_softc *sc = (struct oj6sh_softc *)arg; 222 struct oj6sh_delta delta = {0, 0}; 223 uint32_t buttons = 0; 224 int s; 225 int x, y; 226 227 mutex_enter(&sc->sc_lock); 228 229 if (oj6sh_motion(sc->sc_sh) == false) 230 goto out; 231 else if ((oj6sh_squal(sc->sc_sh) == true) && 232 (oj6sh_shuttrer(sc->sc_sh) == true)) 233 goto out; 234 235 oj6sh_readdelta(sc->sc_sh, &delta); 236 DPRINTF(3,("%s: x = %d, y = %d\n", device_xname(sc->sc_dev), 237 delta.x, delta.y)); 238 239 #if defined(OJ6SH_DOWN_Y_LEFT_X) 240 y = -delta.y; 241 x = -delta.x; 242 #elif defined(OJ6SH_UP_X_LEFT_Y) 243 y = delta.x; 244 x = -delta.y; 245 #elif defined(OJ6SH_DOWN_X_RIGHT_Y) 246 y = -delta.x; 247 x = delta.y; 248 #else /* OJ6SH_UP_Y_RIGHT_X */ 249 y = delta.y; 250 x = delta.x; 251 #endif 252 s = spltty(); 253 wsmouse_input(sc->sc_wsmousedev, buttons, x, y, 0, 0, 254 WSMOUSE_INPUT_DELTA); 255 splx(s); 256 out: 257 mutex_exit(&sc->sc_lock); 258 259 if (sc->sc_enabled) 260 callout_reset(&sc->sc_c, POLLRATE, oj6sh_poll, sc); 261 } 262 263 static uint8_t 264 oj6sh_read(struct spi_handle *spi, uint8_t reg) 265 { 266 uint8_t ret = 0; 267 268 spi_send_recv(spi, 1, ®, 1, &ret); 269 DPRINTF(4,("%s: 0x%02x = 0x%02x\n", __func__, reg, ret)); 270 return ret; 271 } 272 273 static void 274 oj6sh_write(struct spi_handle *spi, uint8_t reg, uint8_t val) 275 { 276 uint8_t tmp[2] = {reg | 0x80, val}; 277 278 spi_send(spi, 2, tmp); 279 DPRINTF(4,("%s: 0x%02x = 0x%02x\n", __func__, reg, val)); 280 return; 281 } 282 283 static bool 284 oj6sh_motion(struct spi_handle *spi) 285 { 286 uint16_t motion; 287 motion = oj6sh_read(spi, OJ6SH_MOTION); 288 return (motion & __BIT(7) ? true : false); 289 } 290 291 static bool 292 oj6sh_squal(struct spi_handle *spi) 293 { 294 uint16_t squal; 295 squal = oj6sh_read(spi, OJ6SH_SQUAL); 296 return (squal < 25 ? true : false); 297 } 298 299 static bool 300 oj6sh_shuttrer(struct spi_handle *spi) 301 { 302 uint16_t shutter; 303 shutter = oj6sh_read(spi, OJ6SH_SHUTTER) << 8; 304 shutter |= oj6sh_read(spi, OJ6SH_SHUTTER + 1); 305 return (shutter > 600 ? true : false); 306 } 307 308 static int 309 oj6sh_readdelta(struct spi_handle *spi, struct oj6sh_delta *delta) 310 { 311 delta->x = (int8_t)oj6sh_read(spi, OJ6SH_DELTA_X); 312 delta->y = (int8_t)oj6sh_read(spi, OJ6SH_DELTA_Y); 313 return 0; 314 } 315 316 int 317 oj6sh_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l) 318 { 319 struct wsmouse_id *id; 320 321 switch (cmd) { 322 case WSMOUSEIO_GTYPE: 323 *(u_int *)data = WSMOUSE_TYPE_PS2; 324 return 0; 325 case WSMOUSEIO_GETID: 326 id = (struct wsmouse_id *)data; 327 if (id->type != WSMOUSE_ID_TYPE_UIDSTR) 328 return EINVAL; 329 strlcpy(id->data, "OJ6SH-T25", WSMOUSE_ID_MAXLEN); 330 id->length = strlen(id->data); 331 return 0; 332 } 333 334 return EPASSTHROUGH; 335 } 336 337 int 338 oj6sh_enable(void *v) 339 { 340 struct oj6sh_softc *sc = (struct oj6sh_softc *)v; 341 342 DPRINTF(3,("%s: oj6sh_enable()\n", device_xname(sc->sc_dev))); 343 if (sc->sc_enabled) { 344 DPRINTF(3,("%s: already enabled\n", device_xname(sc->sc_dev))); 345 return EBUSY; 346 } 347 348 if (!pmf_device_register(sc->sc_dev, oj6sh_suspend, oj6sh_resume)) 349 aprint_error_dev(sc->sc_dev, "couldn't establish power handler\n"); 350 351 sc->sc_enabled = 1; 352 callout_reset(&sc->sc_c, POLLRATE, oj6sh_poll, sc); 353 354 return 0; 355 } 356 357 void 358 oj6sh_disable(void *v) 359 { 360 struct oj6sh_softc *sc = (struct oj6sh_softc *)v; 361 362 DPRINTF(3,("%s: oj6sh_disable()\n", device_xname(sc->sc_dev))); 363 if (!sc->sc_enabled) { 364 DPRINTF(3,("%s: already disabled()\n", device_xname(sc->sc_dev))); 365 return; 366 } 367 368 pmf_device_deregister(sc->sc_dev); 369 370 sc->sc_enabled = 0; 371 372 return; 373 } 374 375 static bool 376 oj6sh_suspend(device_t dv, const pmf_qual_t *qual) 377 { 378 struct oj6sh_softc *sc = device_private(dv); 379 380 DPRINTF(3,("%s: oj6sh_suspend()\n", device_xname(sc->sc_dev))); 381 callout_stop(&sc->sc_c); 382 sc->sc_enabled = 0; 383 384 return true; 385 } 386 387 static bool 388 oj6sh_resume(device_t dv, const pmf_qual_t *qual) 389 { 390 struct oj6sh_softc *sc = device_private(dv); 391 392 DPRINTF(3,("%s: oj6sh_resume()\n", device_xname(sc->sc_dev))); 393 sc->sc_enabled = 1; 394 callout_reset(&sc->sc_c, POLLRATE, oj6sh_poll, sc); 395 396 return true; 397 } 398 399
Indexes created Mon Sep 22 13:09:51 GMT 2025