1 | /* $NetBSD: auvitek_dtv.c,v 1.7 2016/04/23 10:15:31 skrll Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2011 Jared D. McNeill <jmcneill@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 1.7 2016/04/23 10:15:31 skrll 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 | if (sc->sc_dtvdev != NULL) { |
102 | config_detach(sc->sc_dtvdev, flags); |
103 | sc->sc_dtvdev = NULL; |
104 | } |
105 | |
106 | return 0; |
107 | } |
108 | |
109 | void |
110 | auvitek_dtv_rescan(struct auvitek_softc *sc, const char *ifattr, |
111 | const int *locs) |
112 | { |
113 | struct dtv_attach_args daa; |
114 | |
115 | daa.hw = &auvitek_dtv_if; |
116 | daa.priv = sc; |
117 | |
118 | if (ifattr_match(ifattr, "dtvbus" ) && sc->sc_dtvdev == NULL) |
119 | sc->sc_dtvdev = config_found_ia(sc->sc_dev, "dtvbus" , |
120 | &daa, dtv_print); |
121 | } |
122 | |
123 | void |
124 | auvitek_dtv_childdet(struct auvitek_softc *sc, device_t child) |
125 | { |
126 | if (sc->sc_dtvdev == child) |
127 | sc->sc_dtvdev = NULL; |
128 | } |
129 | |
130 | static void |
131 | auvitek_dtv_get_devinfo(void *priv, struct dvb_frontend_info *info) |
132 | { |
133 | struct auvitek_softc *sc = priv; |
134 | |
135 | memset(info, 0, sizeof(*info)); |
136 | strlcpy(info->name, sc->sc_descr, sizeof(info->name)); |
137 | info->type = FE_ATSC; |
138 | info->frequency_min = 54000000; |
139 | info->frequency_max = 858000000; |
140 | info->frequency_stepsize = 62500; |
141 | info->caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB; |
142 | } |
143 | |
144 | static int |
145 | auvitek_dtv_open(void *priv, int flags) |
146 | { |
147 | struct auvitek_softc *sc = priv; |
148 | |
149 | if (sc->sc_dying) |
150 | return EIO; |
151 | |
152 | auvitek_attach_tuner(sc->sc_dev); |
153 | if (sc->sc_xc5k == NULL) |
154 | return ENXIO; |
155 | |
156 | int err = auvitek_dtv_init_pipes(sc); |
157 | if (err) |
158 | return err; |
159 | |
160 | for (size_t i = 0; i < AUVITEK_NBULK_XFERS; i++) { |
161 | sc->sc_ab.ab_bx[i].bx_sc = sc; |
162 | err = usbd_create_xfer(sc->sc_ab.ab_pipe, |
163 | AUVITEK_BULK_BUFLEN, 0, 0, &sc->sc_ab.ab_bx[i].bx_xfer); |
164 | if (err) { |
165 | aprint_error_dev(sc->sc_dev, |
166 | "couldn't allocate xfer\n" ); |
167 | sc->sc_dying = 1; |
168 | return err; |
169 | } |
170 | sc->sc_ab.ab_bx[i].bx_buffer = usbd_get_buffer( |
171 | sc->sc_ab.ab_bx[i].bx_xfer); |
172 | } |
173 | |
174 | |
175 | return 0; |
176 | } |
177 | |
178 | static void |
179 | auvitek_dtv_close(void *priv) |
180 | { |
181 | struct auvitek_softc *sc = priv; |
182 | |
183 | auvitek_dtv_stop_transfer(sc); |
184 | auvitek_dtv_abort_pipes(sc); |
185 | |
186 | for (size_t i = 0; i < AUVITEK_NBULK_XFERS; i++) { |
187 | if (sc->sc_ab.ab_bx[i].bx_xfer) |
188 | usbd_destroy_xfer(sc->sc_ab.ab_bx[i].bx_xfer); |
189 | } |
190 | |
191 | auvitek_dtv_close_pipes(sc); |
192 | |
193 | sc->sc_dtvsubmitcb = NULL; |
194 | sc->sc_dtvsubmitarg = NULL; |
195 | } |
196 | |
197 | static int |
198 | auvitek_dtv_set_tuner(void *priv, const struct dvb_frontend_parameters *params) |
199 | { |
200 | struct auvitek_softc *sc = priv; |
201 | int error; |
202 | |
203 | error = au8522_set_modulation(sc->sc_au8522, params->u.vsb.modulation); |
204 | if (error) |
205 | return error; |
206 | |
207 | delay(100000); |
208 | |
209 | au8522_set_gate(sc->sc_au8522, true); |
210 | error = xc5k_tune_dtv(sc->sc_xc5k, params); |
211 | au8522_set_gate(sc->sc_au8522, false); |
212 | |
213 | return error; |
214 | } |
215 | |
216 | fe_status_t |
217 | auvitek_dtv_get_status(void *priv) |
218 | { |
219 | struct auvitek_softc *sc = priv; |
220 | |
221 | return au8522_get_dtv_status(sc->sc_au8522); |
222 | } |
223 | |
224 | uint16_t |
225 | auvitek_dtv_get_signal_strength(void *priv) |
226 | { |
227 | return auvitek_dtv_get_snr(priv); |
228 | } |
229 | |
230 | uint16_t |
231 | auvitek_dtv_get_snr(void *priv) |
232 | { |
233 | struct auvitek_softc *sc = priv; |
234 | |
235 | return au8522_get_snr(sc->sc_au8522); |
236 | } |
237 | |
238 | static int |
239 | auvitek_dtv_start_transfer(void *priv, |
240 | void (*cb)(void *, const struct dtv_payload *), void *arg) |
241 | { |
242 | struct auvitek_softc *sc = priv; |
243 | int s; |
244 | |
245 | if (sc->sc_ab.ab_running) { |
246 | return 0; |
247 | } |
248 | |
249 | sc->sc_dtvsubmitcb = cb; |
250 | sc->sc_dtvsubmitarg = arg; |
251 | |
252 | auvitek_write_1(sc, 0x608, 0x90); |
253 | auvitek_write_1(sc, 0x609, 0x72); |
254 | auvitek_write_1(sc, 0x60a, 0x71); |
255 | auvitek_write_1(sc, 0x60b, 0x01); |
256 | |
257 | sc->sc_ab.ab_running = true; |
258 | |
259 | s = splusb(); |
260 | auvitek_dtv_bulk_start(sc); |
261 | splx(s); |
262 | |
263 | return 0; |
264 | } |
265 | |
266 | static int |
267 | auvitek_dtv_stop_transfer(void *priv) |
268 | { |
269 | struct auvitek_softc *sc = priv; |
270 | |
271 | sc->sc_ab.ab_running = false; |
272 | |
273 | auvitek_write_1(sc, 0x608, 0x00); |
274 | auvitek_write_1(sc, 0x609, 0x00); |
275 | auvitek_write_1(sc, 0x60a, 0x00); |
276 | auvitek_write_1(sc, 0x60b, 0x00); |
277 | |
278 | return 0; |
279 | } |
280 | |
281 | static int |
282 | auvitek_dtv_init_pipes(struct auvitek_softc *sc) |
283 | { |
284 | usbd_status err; |
285 | |
286 | KERNEL_LOCK(1, curlwp); |
287 | err = usbd_open_pipe(sc->sc_bulk_iface, sc->sc_ab.ab_endpt, |
288 | USBD_EXCLUSIVE_USE|USBD_MPSAFE, &sc->sc_ab.ab_pipe); |
289 | KERNEL_UNLOCK_ONE(curlwp); |
290 | |
291 | if (err) { |
292 | aprint_error_dev(sc->sc_dev, "couldn't open bulk-in pipe: %s\n" , |
293 | usbd_errstr(err)); |
294 | return ENOMEM; |
295 | } |
296 | |
297 | return 0; |
298 | } |
299 | |
300 | static int |
301 | auvitek_dtv_abort_pipes(struct auvitek_softc *sc) |
302 | { |
303 | if (sc->sc_ab.ab_pipe != NULL) { |
304 | KERNEL_LOCK(1, curlwp); |
305 | usbd_abort_pipe(sc->sc_ab.ab_pipe); |
306 | KERNEL_UNLOCK_ONE(curlwp); |
307 | } |
308 | |
309 | return 0; |
310 | } |
311 | |
312 | static int |
313 | auvitek_dtv_close_pipes(struct auvitek_softc *sc) |
314 | { |
315 | if (sc->sc_ab.ab_pipe != NULL) { |
316 | KERNEL_LOCK(1, curlwp); |
317 | usbd_close_pipe(sc->sc_ab.ab_pipe); |
318 | KERNEL_UNLOCK_ONE(curlwp); |
319 | sc->sc_ab.ab_pipe = NULL; |
320 | } |
321 | |
322 | return 0; |
323 | } |
324 | |
325 | static void |
326 | auvitek_dtv_bulk_cb(struct usbd_xfer *xfer, void *priv, |
327 | usbd_status status) |
328 | { |
329 | struct auvitek_bulk_xfer *bx = priv; |
330 | struct auvitek_softc *sc = bx->bx_sc; |
331 | struct auvitek_bulk *ab = &sc->sc_ab; |
332 | struct dtv_payload payload; |
333 | uint32_t xferlen; |
334 | |
335 | if (ab->ab_running == false || sc->sc_dtvsubmitcb == NULL) |
336 | return; |
337 | |
338 | usbd_get_xfer_status(xfer, NULL, NULL, &xferlen, NULL); |
339 | |
340 | //printf("%s: status=%d xferlen=%u\n", __func__, status, xferlen); |
341 | |
342 | if (status != USBD_NORMAL_COMPLETION) { |
343 | printf("%s: USB error (%s)\n" , __func__, usbd_errstr(status)); |
344 | if (status == USBD_STALLED) { |
345 | usbd_clear_endpoint_stall_async(ab->ab_pipe); |
346 | goto next; |
347 | } |
348 | if (status == USBD_SHORT_XFER) { |
349 | goto next; |
350 | } |
351 | return; |
352 | } |
353 | |
354 | if (xferlen == 0) { |
355 | printf("%s: 0-length xfer\n" , __func__); |
356 | goto next; |
357 | } |
358 | |
359 | payload.data = bx->bx_buffer; |
360 | payload.size = xferlen; |
361 | sc->sc_dtvsubmitcb(sc->sc_dtvsubmitarg, &payload); |
362 | |
363 | next: |
364 | auvitek_dtv_bulk_start1(bx); |
365 | } |
366 | |
367 | static int |
368 | auvitek_dtv_bulk_start(struct auvitek_softc *sc) |
369 | { |
370 | int i, error; |
371 | |
372 | for (i = 0; i < AUVITEK_NBULK_XFERS; i++) { |
373 | error = auvitek_dtv_bulk_start1(&sc->sc_ab.ab_bx[i]); |
374 | if (error) |
375 | return error; |
376 | } |
377 | |
378 | return 0; |
379 | } |
380 | |
381 | static int |
382 | auvitek_dtv_bulk_start1(struct auvitek_bulk_xfer *bx) |
383 | { |
384 | struct auvitek_softc *sc = bx->bx_sc; |
385 | usbd_status err; |
386 | |
387 | usbd_setup_xfer(bx->bx_xfer, bx, bx->bx_buffer, AUVITEK_BULK_BUFLEN, |
388 | 0 /* USBD_SHORT_XFER_OK */, 100 /* USBD_NO_TIMEOUT */, |
389 | auvitek_dtv_bulk_cb); |
390 | |
391 | KERNEL_LOCK(1, curlwp); |
392 | err = usbd_transfer(bx->bx_xfer); |
393 | KERNEL_UNLOCK_ONE(curlwp); |
394 | |
395 | if (err != USBD_IN_PROGRESS) { |
396 | aprint_error_dev(sc->sc_dev, "USB error: %s\n" , |
397 | usbd_errstr(err)); |
398 | return ENODEV; |
399 | } |
400 | |
401 | return 0; |
402 | } |
403 | |