1 /* $NetBSD: auvitek_dtv.c,v 1.10 2022/03/13 12:49:36 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2011 Jared D. McNeill <jmcneill (at) invisible.ca> 5 * All rights reserved. 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 THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND 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 THE FOUNDATION OR CONTRIBUTORS 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 * Auvitek AU0828 USB controller (Digital TV function) 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: auvitek_dtv.c,v 1.10 2022/03/13 12:49:36 riastradh Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/device.h> 39 #include <sys/conf.h> 40 #include <sys/kmem.h> 41 #include <sys/bus.h> 42 43 #include <dev/usb/usb.h> 44 #include <dev/usb/usbdi.h> 45 #include <dev/usb/usbdivar.h> 46 #include <dev/usb/usbdi_util.h> 47 #include <dev/usb/usbdevs.h> 48 49 #include <dev/dtv/dtvif.h> 50 51 #include <dev/usb/auvitekreg.h> 52 #include <dev/usb/auvitekvar.h> 53 54 static void auvitek_dtv_get_devinfo(void *, 55 struct dvb_frontend_info *); 56 static int auvitek_dtv_open(void *, int); 57 static void auvitek_dtv_close(void *); 58 static int auvitek_dtv_set_tuner(void *, 59 const struct dvb_frontend_parameters *); 60 static fe_status_t auvitek_dtv_get_status(void *); 61 static uint16_t auvitek_dtv_get_signal_strength(void *); 62 static uint16_t auvitek_dtv_get_snr(void *); 63 static int auvitek_dtv_start_transfer(void *, 64 void (*)(void *, const struct dtv_payload *), 65 void *); 66 static int auvitek_dtv_stop_transfer(void *); 67 68 static int auvitek_dtv_init_pipes(struct auvitek_softc *); 69 static int auvitek_dtv_abort_pipes(struct auvitek_softc *); 70 static int auvitek_dtv_close_pipes(struct auvitek_softc *); 71 72 static int auvitek_dtv_bulk_start(struct auvitek_softc *); 73 static int auvitek_dtv_bulk_start1(struct auvitek_bulk_xfer *); 74 static void auvitek_dtv_bulk_cb(struct usbd_xfer *, void *, 75 usbd_status); 76 77 static const struct dtv_hw_if auvitek_dtv_if = { 78 .get_devinfo = auvitek_dtv_get_devinfo, 79 .open = auvitek_dtv_open, 80 .close = auvitek_dtv_close, 81 .set_tuner = auvitek_dtv_set_tuner, 82 .get_status = auvitek_dtv_get_status, 83 .get_signal_strength = auvitek_dtv_get_signal_strength, 84 .get_snr = auvitek_dtv_get_snr, 85 .start_transfer = auvitek_dtv_start_transfer, 86 .stop_transfer = auvitek_dtv_stop_transfer, 87 }; 88 89 int 90 auvitek_dtv_attach(struct auvitek_softc *sc) 91 { 92 93 auvitek_dtv_rescan(sc, NULL, NULL); 94 95 return sc->sc_dtvdev != NULL; 96 } 97 98 int 99 auvitek_dtv_detach(struct auvitek_softc *sc, int flags) 100 { 101 102 return 0; 103 } 104 105 void 106 auvitek_dtv_rescan(struct auvitek_softc *sc, const char *ifattr, 107 const int *locs) 108 { 109 struct dtv_attach_args daa; 110 111 daa.hw = &auvitek_dtv_if; 112 daa.priv = sc; 113 114 if (ifattr_match(ifattr, "dtvbus") && sc->sc_dtvdev == NULL) 115 sc->sc_dtvdev = config_found(sc->sc_dev, &daa, dtv_print, 116 CFARGS(.iattr = "dtvbus")); 117 } 118 119 void 120 auvitek_dtv_childdet(struct auvitek_softc *sc, device_t child) 121 { 122 if (sc->sc_dtvdev == child) 123 sc->sc_dtvdev = NULL; 124 } 125 126 static void 127 auvitek_dtv_get_devinfo(void *priv, struct dvb_frontend_info *info) 128 { 129 struct auvitek_softc *sc = priv; 130 131 memset(info, 0, sizeof(*info)); 132 strlcpy(info->name, sc->sc_descr, sizeof(info->name)); 133 info->type = FE_ATSC; 134 info->frequency_min = 54000000; 135 info->frequency_max = 858000000; 136 info->frequency_stepsize = 62500; 137 info->caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB; 138 } 139 140 static int 141 auvitek_dtv_open(void *priv, int flags) 142 { 143 struct auvitek_softc *sc = priv; 144 145 if (sc->sc_dying) 146 return EIO; 147 148 auvitek_attach_tuner(sc->sc_dev); 149 if (sc->sc_xc5k == NULL) 150 return ENXIO; 151 152 int err = auvitek_dtv_init_pipes(sc); 153 if (err) 154 return err; 155 156 for (size_t i = 0; i < AUVITEK_NBULK_XFERS; i++) { 157 sc->sc_ab.ab_bx[i].bx_sc = sc; 158 err = usbd_create_xfer(sc->sc_ab.ab_pipe, 159 AUVITEK_BULK_BUFLEN, 0, 0, &sc->sc_ab.ab_bx[i].bx_xfer); 160 if (err) { 161 aprint_error_dev(sc->sc_dev, 162 "couldn't allocate xfer\n"); 163 sc->sc_dying = 1; 164 return err; 165 } 166 sc->sc_ab.ab_bx[i].bx_buffer = usbd_get_buffer( 167 sc->sc_ab.ab_bx[i].bx_xfer); 168 } 169 170 171 return 0; 172 } 173 174 static void 175 auvitek_dtv_close(void *priv) 176 { 177 struct auvitek_softc *sc = priv; 178 179 auvitek_dtv_stop_transfer(sc); 180 auvitek_dtv_abort_pipes(sc); 181 182 for (size_t i = 0; i < AUVITEK_NBULK_XFERS; i++) { 183 if (sc->sc_ab.ab_bx[i].bx_xfer) 184 usbd_destroy_xfer(sc->sc_ab.ab_bx[i].bx_xfer); 185 } 186 187 auvitek_dtv_close_pipes(sc); 188 189 sc->sc_dtvsubmitcb = NULL; 190 sc->sc_dtvsubmitarg = NULL; 191 } 192 193 static int 194 auvitek_dtv_set_tuner(void *priv, const struct dvb_frontend_parameters *params) 195 { 196 struct auvitek_softc *sc = priv; 197 int error; 198 199 error = au8522_set_modulation(sc->sc_au8522, params->u.vsb.modulation); 200 if (error) 201 return error; 202 203 delay(100000); 204 205 au8522_set_gate(sc->sc_au8522, true); 206 error = xc5k_tune_dtv(sc->sc_xc5k, params); 207 au8522_set_gate(sc->sc_au8522, false); 208 209 return error; 210 } 211 212 fe_status_t 213 auvitek_dtv_get_status(void *priv) 214 { 215 struct auvitek_softc *sc = priv; 216 217 return au8522_get_dtv_status(sc->sc_au8522); 218 } 219 220 uint16_t 221 auvitek_dtv_get_signal_strength(void *priv) 222 { 223 return auvitek_dtv_get_snr(priv); 224 } 225 226 uint16_t 227 auvitek_dtv_get_snr(void *priv) 228 { 229 struct auvitek_softc *sc = priv; 230 231 return au8522_get_snr(sc->sc_au8522); 232 } 233 234 static int 235 auvitek_dtv_start_transfer(void *priv, 236 void (*cb)(void *, const struct dtv_payload *), void *arg) 237 { 238 struct auvitek_softc *sc = priv; 239 int s; 240 241 if (sc->sc_ab.ab_running) { 242 return 0; 243 } 244 245 sc->sc_dtvsubmitcb = cb; 246 sc->sc_dtvsubmitarg = arg; 247 248 auvitek_write_1(sc, 0x608, 0x90); 249 auvitek_write_1(sc, 0x609, 0x72); 250 auvitek_write_1(sc, 0x60a, 0x71); 251 auvitek_write_1(sc, 0x60b, 0x01); 252 253 sc->sc_ab.ab_running = true; 254 255 s = splusb(); 256 auvitek_dtv_bulk_start(sc); 257 splx(s); 258 259 return 0; 260 } 261 262 static int 263 auvitek_dtv_stop_transfer(void *priv) 264 { 265 struct auvitek_softc *sc = priv; 266 267 sc->sc_ab.ab_running = false; 268 269 auvitek_write_1(sc, 0x608, 0x00); 270 auvitek_write_1(sc, 0x609, 0x00); 271 auvitek_write_1(sc, 0x60a, 0x00); 272 auvitek_write_1(sc, 0x60b, 0x00); 273 274 return 0; 275 } 276 277 static int 278 auvitek_dtv_init_pipes(struct auvitek_softc *sc) 279 { 280 usbd_status err; 281 282 KERNEL_LOCK(1, curlwp); 283 err = usbd_open_pipe(sc->sc_bulk_iface, sc->sc_ab.ab_endpt, 284 USBD_EXCLUSIVE_USE|USBD_MPSAFE, &sc->sc_ab.ab_pipe); 285 KERNEL_UNLOCK_ONE(curlwp); 286 287 if (err) { 288 aprint_error_dev(sc->sc_dev, "couldn't open bulk-in pipe: %s\n", 289 usbd_errstr(err)); 290 return ENOMEM; 291 } 292 293 return 0; 294 } 295 296 static int 297 auvitek_dtv_abort_pipes(struct auvitek_softc *sc) 298 { 299 if (sc->sc_ab.ab_pipe != NULL) { 300 KERNEL_LOCK(1, curlwp); 301 usbd_abort_pipe(sc->sc_ab.ab_pipe); 302 KERNEL_UNLOCK_ONE(curlwp); 303 } 304 305 return 0; 306 } 307 308 static int 309 auvitek_dtv_close_pipes(struct auvitek_softc *sc) 310 { 311 if (sc->sc_ab.ab_pipe != NULL) { 312 KERNEL_LOCK(1, curlwp); 313 usbd_close_pipe(sc->sc_ab.ab_pipe); 314 KERNEL_UNLOCK_ONE(curlwp); 315 sc->sc_ab.ab_pipe = NULL; 316 } 317 318 return 0; 319 } 320 321 static void 322 auvitek_dtv_bulk_cb(struct usbd_xfer *xfer, void *priv, 323 usbd_status status) 324 { 325 struct auvitek_bulk_xfer *bx = priv; 326 struct auvitek_softc *sc = bx->bx_sc; 327 struct auvitek_bulk *ab = &sc->sc_ab; 328 struct dtv_payload payload; 329 uint32_t xferlen; 330 331 if (ab->ab_running == false || sc->sc_dtvsubmitcb == NULL) 332 return; 333 334 usbd_get_xfer_status(xfer, NULL, NULL, &xferlen, NULL); 335 336 //printf("%s: status=%d xferlen=%u\n", __func__, status, xferlen); 337 338 if (status != USBD_NORMAL_COMPLETION) { 339 printf("%s: USB error (%s)\n", __func__, usbd_errstr(status)); 340 if (status == USBD_STALLED) { 341 usbd_clear_endpoint_stall_async(ab->ab_pipe); 342 goto next; 343 } 344 if (status == USBD_SHORT_XFER) { 345 goto next; 346 } 347 return; 348 } 349 350 if (xferlen == 0) { 351 printf("%s: 0-length xfer\n", __func__); 352 goto next; 353 } 354 355 payload.data = bx->bx_buffer; 356 payload.size = xferlen; 357 sc->sc_dtvsubmitcb(sc->sc_dtvsubmitarg, &payload); 358 359 next: 360 auvitek_dtv_bulk_start1(bx); 361 } 362 363 static int 364 auvitek_dtv_bulk_start(struct auvitek_softc *sc) 365 { 366 int i, error; 367 368 for (i = 0; i < AUVITEK_NBULK_XFERS; i++) { 369 error = auvitek_dtv_bulk_start1(&sc->sc_ab.ab_bx[i]); 370 if (error) 371 return error; 372 } 373 374 return 0; 375 } 376 377 static int 378 auvitek_dtv_bulk_start1(struct auvitek_bulk_xfer *bx) 379 { 380 struct auvitek_softc *sc = bx->bx_sc; 381 usbd_status err; 382 383 usbd_setup_xfer(bx->bx_xfer, bx, bx->bx_buffer, AUVITEK_BULK_BUFLEN, 384 0 /* USBD_SHORT_XFER_OK */, 100 /* USBD_NO_TIMEOUT */, 385 auvitek_dtv_bulk_cb); 386 387 KERNEL_LOCK(1, curlwp); 388 err = usbd_transfer(bx->bx_xfer); 389 KERNEL_UNLOCK_ONE(curlwp); 390 391 if (err != USBD_IN_PROGRESS) { 392 aprint_error_dev(sc->sc_dev, "USB error: %s\n", 393 usbd_errstr(err)); 394 return ENODEV; 395 } 396 397 return 0; 398 } 399
Indexes created Sat Sep 27 14:09:57 GMT 2025