oj6sh.c revision 1.8.2.1
1 /* $NetBSD: oj6sh.c,v 1.8.2.1 2021/05/19 03:46:26 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 1.8.2.1 2021/05/19 03:46:26 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 DEVICE_COMPAT_EOL 132 }; 133 134 static int 135 oj6sh_match(device_t parent, cfdata_t cf, void *aux) 136 { 137 struct spi_attach_args *sa = aux; 138 139 if (spi_compatible_match(sa, cf, compat_data) == 0) 140 return 0; 141 142 return 2; 143 } 144 145 static void 146 oj6sh_doattach(device_t self) 147 { 148 struct oj6sh_softc *sc = device_private(self); 149 uint8_t product; 150 uint8_t rev; 151 uint8_t product_inv; 152 uint8_t rev_inv; 153 154 /* reset */ 155 oj6sh_write(sc->sc_sh, OJ6SH_RESET, POWERON_RESET); 156 delay(10000); 157 158 /* resolution */ 159 oj6sh_write(sc->sc_sh, OJ6SH_CONFIG, 0x80); 160 161 product = oj6sh_read(sc->sc_sh, OJ6SH_PRODUCT); 162 rev = oj6sh_read(sc->sc_sh, OJ6SH_REVISION); 163 product_inv = oj6sh_read(sc->sc_sh, OJ6SH_N_PRODUCT); 164 rev_inv = oj6sh_read(sc->sc_sh, OJ6SH_N_REVISION); 165 166 if (((product | product_inv) != 0xff) || ((rev | rev_inv) != 0xff)) { 167 aprint_error_dev(self, 168 "mismatch product (%02x:%02x), rev (%02x:%02x)\n", 169 product, product_inv, rev, rev_inv); 170 return; 171 } 172 173 aprint_normal("%s: id 0x%02x, revision 0x%02x\n", 174 device_xname(sc->sc_dev), product, rev); 175 176 return; 177 } 178 179 static void 180 oj6sh_attach(device_t parent, device_t self, void *aux) 181 { 182 struct oj6sh_softc *sc = device_private(self); 183 struct spi_attach_args *sa = aux; 184 struct wsmousedev_attach_args a; 185 int errir; 186 187 aprint_naive("\n"); 188 aprint_normal(": OJ6SH-T25 Optical Joystick\n"); 189 190 error = spi_configure(sa->sa_handle, SPI_MODE_0, 2500000); 191 if (error) { 192 aprint_error_dev(self, "spi_configure failed (error = %d)\n", 193 error); 194 return; 195 } 196 197 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE); 198 199 sc->sc_dev = self; 200 sc->sc_enabled = 0; 201 202 callout_init(&sc->sc_c, 0); 203 workqueue_create(&sc->sc_wq, "oj6sh", 204 oj6sh_cb, sc, PRI_NONE, IPL_BIO, 0); 205 206 sc->sc_sh = sa->sa_handle; 207 208 a.accessops = &oj6sh_accessops; 209 a.accesscookie = sc; 210 211 sc->sc_wsmousedev = config_found(self, &a, wsmousedevprint, CFARG_EOL); 212 213 config_interrupts(self, oj6sh_doattach); 214 } 215 216 static void 217 oj6sh_poll(void *arg) 218 { 219 struct oj6sh_softc *sc = (struct oj6sh_softc *)arg; 220 workqueue_enqueue(sc->sc_wq, &sc->sc_wk, NULL); 221 } 222 223 static void 224 oj6sh_cb(struct work *wk, void *arg) 225 { 226 struct oj6sh_softc *sc = (struct oj6sh_softc *)arg; 227 struct oj6sh_delta delta = {0, 0}; 228 uint32_t buttons = 0; 229 int s; 230 int x, y; 231 232 mutex_enter(&sc->sc_lock); 233 234 if (oj6sh_motion(sc->sc_sh) == false) 235 goto out; 236 else if ((oj6sh_squal(sc->sc_sh) == true) && 237 (oj6sh_shuttrer(sc->sc_sh) == true)) 238 goto out; 239 240 oj6sh_readdelta(sc->sc_sh, &delta); 241 DPRINTF(3,("%s: x = %d, y = %d\n", device_xname(sc->sc_dev), 242 delta.x, delta.y)); 243 244 #if defined(OJ6SH_DOWN_Y_LEFT_X) 245 y = -delta.y; 246 x = -delta.x; 247 #elif defined(OJ6SH_UP_X_LEFT_Y) 248 y = delta.x; 249 x = -delta.y; 250 #elif defined(OJ6SH_DOWN_X_RIGHT_Y) 251 y = -delta.x; 252 x = delta.y; 253 #else /* OJ6SH_UP_Y_RIGHT_X */ 254 y = delta.y; 255 x = delta.x; 256 #endif 257 s = spltty(); 258 wsmouse_input(sc->sc_wsmousedev, buttons, x, y, 0, 0, 259 WSMOUSE_INPUT_DELTA); 260 splx(s); 261 out: 262 mutex_exit(&sc->sc_lock); 263 264 if (sc->sc_enabled) 265 callout_reset(&sc->sc_c, POLLRATE, oj6sh_poll, sc); 266 } 267 268 static uint8_t 269 oj6sh_read(struct spi_handle *spi, uint8_t reg) 270 { 271 uint8_t ret = 0; 272 273 spi_send_recv(spi, 1, ®, 1, &ret); 274 DPRINTF(4,("%s: 0x%02x = 0x%02x\n", __func__, reg, ret)); 275 return ret; 276 } 277 278 static void 279 oj6sh_write(struct spi_handle *spi, uint8_t reg, uint8_t val) 280 { 281 uint8_t tmp[2] = {reg | 0x80, val}; 282 283 spi_send(spi, 2, tmp); 284 DPRINTF(4,("%s: 0x%02x = 0x%02x\n", __func__, reg, val)); 285 return; 286 } 287 288 static bool 289 oj6sh_motion(struct spi_handle *spi) 290 { 291 uint16_t motion; 292 motion = oj6sh_read(spi, OJ6SH_MOTION); 293 return (motion & __BIT(7) ? true : false); 294 } 295 296 static bool 297 oj6sh_squal(struct spi_handle *spi) 298 { 299 uint16_t squal; 300 squal = oj6sh_read(spi, OJ6SH_SQUAL); 301 return (squal < 25 ? true : false); 302 } 303 304 static bool 305 oj6sh_shuttrer(struct spi_handle *spi) 306 { 307 uint16_t shutter; 308 shutter = oj6sh_read(spi, OJ6SH_SHUTTER) << 8; 309 shutter |= oj6sh_read(spi, OJ6SH_SHUTTER + 1); 310 return (shutter > 600 ? true : false); 311 } 312 313 static int 314 oj6sh_readdelta(struct spi_handle *spi, struct oj6sh_delta *delta) 315 { 316 delta->x = (int8_t)oj6sh_read(spi, OJ6SH_DELTA_X); 317 delta->y = (int8_t)oj6sh_read(spi, OJ6SH_DELTA_Y); 318 return 0; 319 } 320 321 int 322 oj6sh_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l) 323 { 324 struct wsmouse_id *id; 325 326 switch (cmd) { 327 case WSMOUSEIO_GTYPE: 328 *(u_int *)data = WSMOUSE_TYPE_PS2; 329 return 0; 330 case WSMOUSEIO_GETID: 331 id = (struct wsmouse_id *)data; 332 if (id->type != WSMOUSE_ID_TYPE_UIDSTR) 333 return EINVAL; 334 strlcpy(id->data, "OJ6SH-T25", WSMOUSE_ID_MAXLEN); 335 id->length = strlen(id->data); 336 return 0; 337 } 338 339 return EPASSTHROUGH; 340 } 341 342 int 343 oj6sh_enable(void *v) 344 { 345 struct oj6sh_softc *sc = (struct oj6sh_softc *)v; 346 347 DPRINTF(3,("%s: oj6sh_enable()\n", device_xname(sc->sc_dev))); 348 if (sc->sc_enabled) { 349 DPRINTF(3,("%s: already enabled\n", device_xname(sc->sc_dev))); 350 return EBUSY; 351 } 352 353 if (!pmf_device_register(sc->sc_dev, oj6sh_suspend, oj6sh_resume)) 354 aprint_error_dev(sc->sc_dev, "couldn't establish power handler\n"); 355 356 sc->sc_enabled = 1; 357 callout_reset(&sc->sc_c, POLLRATE, oj6sh_poll, sc); 358 359 return 0; 360 } 361 362 void 363 oj6sh_disable(void *v) 364 { 365 struct oj6sh_softc *sc = (struct oj6sh_softc *)v; 366 367 DPRINTF(3,("%s: oj6sh_disable()\n", device_xname(sc->sc_dev))); 368 if (!sc->sc_enabled) { 369 DPRINTF(3,("%s: already disabled()\n", device_xname(sc->sc_dev))); 370 return; 371 } 372 373 pmf_device_deregister(sc->sc_dev); 374 375 sc->sc_enabled = 0; 376 377 return; 378 } 379 380 static bool 381 oj6sh_suspend(device_t dv, const pmf_qual_t *qual) 382 { 383 struct oj6sh_softc *sc = device_private(dv); 384 385 DPRINTF(3,("%s: oj6sh_suspend()\n", device_xname(sc->sc_dev))); 386 callout_stop(&sc->sc_c); 387 sc->sc_enabled = 0; 388 389 return true; 390 } 391 392 static bool 393 oj6sh_resume(device_t dv, const pmf_qual_t *qual) 394 { 395 struct oj6sh_softc *sc = device_private(dv); 396 397 DPRINTF(3,("%s: oj6sh_resume()\n", device_xname(sc->sc_dev))); 398 sc->sc_enabled = 1; 399 callout_reset(&sc->sc_c, POLLRATE, oj6sh_poll, sc); 400 401 return true; 402 } 403 404
Indexes created Sun Oct 19 02:09:48 GMT 2025