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Commit | Line | Data |
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5b3f03f0 HS |
1 | #include <linux/init.h> |
2 | #include <linux/list.h> | |
3 | #include <linux/module.h> | |
4 | #include <linux/kernel.h> | |
5 | #include <linux/bitmap.h> | |
6 | #include <linux/usb.h> | |
7 | #include <linux/i2c.h> | |
8 | #include <media/v4l2-dev.h> | |
5b3f03f0 HS |
9 | #include <linux/mm.h> |
10 | #include <linux/mutex.h> | |
11 | #include <media/v4l2-ioctl.h> | |
12 | #include <linux/sched.h> | |
13 | ||
14 | #include "pd-common.h" | |
15 | #include "vendorcmds.h" | |
16 | ||
17 | static int set_frequency(struct poseidon *p, __u32 frequency); | |
18 | static int poseidon_fm_close(struct file *filp); | |
19 | static int poseidon_fm_open(struct file *filp); | |
20 | ||
21 | #define TUNER_FREQ_MIN_FM 76000000 | |
22 | #define TUNER_FREQ_MAX_FM 108000000 | |
23 | ||
007ad830 HS |
24 | #define MAX_PREEMPHASIS (V4L2_PREEMPHASIS_75_uS + 1) |
25 | static int preemphasis[MAX_PREEMPHASIS] = { | |
26 | TLG_TUNE_ASTD_NONE, /* V4L2_PREEMPHASIS_DISABLED */ | |
27 | TLG_TUNE_ASTD_FM_EUR, /* V4L2_PREEMPHASIS_50_uS */ | |
28 | TLG_TUNE_ASTD_FM_US, /* V4L2_PREEMPHASIS_75_uS */ | |
29 | }; | |
30 | ||
5b3f03f0 HS |
31 | static int poseidon_check_mode_radio(struct poseidon *p) |
32 | { | |
007ad830 | 33 | int ret; |
5b3f03f0 HS |
34 | u32 status; |
35 | ||
36 | set_current_state(TASK_INTERRUPTIBLE); | |
37 | schedule_timeout(HZ/2); | |
38 | ret = usb_set_interface(p->udev, 0, BULK_ALTERNATE_IFACE); | |
39 | if (ret < 0) | |
40 | goto out; | |
41 | ||
42 | ret = set_tuner_mode(p, TLG_MODE_FM_RADIO); | |
43 | if (ret != 0) | |
44 | goto out; | |
45 | ||
46 | ret = send_set_req(p, SGNL_SRC_SEL, TLG_SIG_SRC_ANTENNA, &status); | |
007ad830 HS |
47 | ret = send_set_req(p, TUNER_AUD_ANA_STD, |
48 | p->radio_data.pre_emphasis, &status); | |
5b3f03f0 HS |
49 | ret |= send_set_req(p, TUNER_AUD_MODE, |
50 | TLG_TUNE_TVAUDIO_MODE_STEREO, &status); | |
51 | ret |= send_set_req(p, AUDIO_SAMPLE_RATE_SEL, | |
52 | ATV_AUDIO_RATE_48K, &status); | |
53 | ret |= send_set_req(p, TUNE_FREQ_SELECT, TUNER_FREQ_MIN_FM, &status); | |
54 | out: | |
55 | return ret; | |
56 | } | |
57 | ||
58 | #ifdef CONFIG_PM | |
59 | static int pm_fm_suspend(struct poseidon *p) | |
60 | { | |
61 | logpm(p); | |
62 | pm_alsa_suspend(p); | |
63 | usb_set_interface(p->udev, 0, 0); | |
64 | msleep(300); | |
65 | return 0; | |
66 | } | |
67 | ||
68 | static int pm_fm_resume(struct poseidon *p) | |
69 | { | |
70 | logpm(p); | |
71 | poseidon_check_mode_radio(p); | |
72 | set_frequency(p, p->radio_data.fm_freq); | |
73 | pm_alsa_resume(p); | |
74 | return 0; | |
75 | } | |
76 | #endif | |
77 | ||
78 | static int poseidon_fm_open(struct file *filp) | |
79 | { | |
80 | struct video_device *vfd = video_devdata(filp); | |
81 | struct poseidon *p = video_get_drvdata(vfd); | |
82 | int ret = 0; | |
83 | ||
84 | if (!p) | |
85 | return -1; | |
86 | ||
87 | mutex_lock(&p->lock); | |
88 | if (p->state & POSEIDON_STATE_DISCONNECT) { | |
89 | ret = -ENODEV; | |
90 | goto out; | |
91 | } | |
92 | ||
93 | if (p->state && !(p->state & POSEIDON_STATE_FM)) { | |
94 | ret = -EBUSY; | |
95 | goto out; | |
96 | } | |
97 | ||
98 | usb_autopm_get_interface(p->interface); | |
99 | if (0 == p->state) { | |
007ad830 HS |
100 | /* default pre-emphasis */ |
101 | if (p->radio_data.pre_emphasis == 0) | |
102 | p->radio_data.pre_emphasis = TLG_TUNE_ASTD_FM_EUR; | |
5b3f03f0 HS |
103 | set_debug_mode(vfd, debug_mode); |
104 | ||
105 | ret = poseidon_check_mode_radio(p); | |
106 | if (ret < 0) { | |
107 | usb_autopm_put_interface(p->interface); | |
108 | goto out; | |
109 | } | |
110 | p->state |= POSEIDON_STATE_FM; | |
111 | } | |
112 | p->radio_data.users++; | |
113 | kref_get(&p->kref); | |
114 | filp->private_data = p; | |
115 | out: | |
116 | mutex_unlock(&p->lock); | |
117 | return ret; | |
118 | } | |
119 | ||
120 | static int poseidon_fm_close(struct file *filp) | |
121 | { | |
122 | struct poseidon *p = filp->private_data; | |
123 | struct radio_data *fm = &p->radio_data; | |
124 | uint32_t status; | |
125 | ||
126 | mutex_lock(&p->lock); | |
127 | fm->users--; | |
128 | if (0 == fm->users) | |
129 | p->state &= ~POSEIDON_STATE_FM; | |
130 | ||
131 | if (fm->is_radio_streaming && filp == p->file_for_stream) { | |
132 | fm->is_radio_streaming = 0; | |
133 | send_set_req(p, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP, &status); | |
134 | } | |
135 | usb_autopm_put_interface(p->interface); | |
136 | mutex_unlock(&p->lock); | |
137 | ||
138 | kref_put(&p->kref, poseidon_delete); | |
139 | filp->private_data = NULL; | |
140 | return 0; | |
141 | } | |
142 | ||
143 | static int vidioc_querycap(struct file *file, void *priv, | |
144 | struct v4l2_capability *v) | |
145 | { | |
146 | struct poseidon *p = file->private_data; | |
147 | ||
148 | strlcpy(v->driver, "tele-radio", sizeof(v->driver)); | |
149 | strlcpy(v->card, "Telegent Poseidon", sizeof(v->card)); | |
150 | usb_make_path(p->udev, v->bus_info, sizeof(v->bus_info)); | |
5b3f03f0 HS |
151 | v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO; |
152 | return 0; | |
153 | } | |
154 | ||
155 | static const struct v4l2_file_operations poseidon_fm_fops = { | |
156 | .owner = THIS_MODULE, | |
157 | .open = poseidon_fm_open, | |
158 | .release = poseidon_fm_close, | |
159 | .ioctl = video_ioctl2, | |
160 | }; | |
161 | ||
278a58cf MN |
162 | static int tlg_fm_vidioc_g_tuner(struct file *file, void *priv, |
163 | struct v4l2_tuner *vt) | |
5b3f03f0 HS |
164 | { |
165 | struct tuner_fm_sig_stat_s fm_stat = {}; | |
166 | int ret, status, count = 5; | |
167 | struct poseidon *p = file->private_data; | |
168 | ||
169 | if (vt->index != 0) | |
170 | return -EINVAL; | |
171 | ||
172 | vt->type = V4L2_TUNER_RADIO; | |
173 | vt->capability = V4L2_TUNER_CAP_STEREO; | |
174 | vt->rangelow = TUNER_FREQ_MIN_FM / 62500; | |
175 | vt->rangehigh = TUNER_FREQ_MAX_FM / 62500; | |
176 | vt->rxsubchans = V4L2_TUNER_SUB_STEREO; | |
177 | vt->audmode = V4L2_TUNER_MODE_STEREO; | |
178 | vt->signal = 0; | |
179 | vt->afc = 0; | |
180 | ||
181 | mutex_lock(&p->lock); | |
182 | ret = send_get_req(p, TUNER_STATUS, TLG_MODE_FM_RADIO, | |
183 | &fm_stat, &status, sizeof(fm_stat)); | |
184 | ||
185 | while (fm_stat.sig_lock_busy && count-- && !ret) { | |
186 | set_current_state(TASK_INTERRUPTIBLE); | |
187 | schedule_timeout(HZ); | |
188 | ||
189 | ret = send_get_req(p, TUNER_STATUS, TLG_MODE_FM_RADIO, | |
190 | &fm_stat, &status, sizeof(fm_stat)); | |
191 | } | |
192 | mutex_unlock(&p->lock); | |
193 | ||
194 | if (ret || status) { | |
195 | vt->signal = 0; | |
196 | } else if ((fm_stat.sig_present || fm_stat.sig_locked) | |
197 | && fm_stat.sig_strength == 0) { | |
198 | vt->signal = 0xffff; | |
199 | } else | |
200 | vt->signal = (fm_stat.sig_strength * 255 / 10) << 8; | |
201 | ||
202 | return 0; | |
203 | } | |
204 | ||
278a58cf MN |
205 | static int fm_get_freq(struct file *file, void *priv, |
206 | struct v4l2_frequency *argp) | |
5b3f03f0 HS |
207 | { |
208 | struct poseidon *p = file->private_data; | |
209 | ||
210 | argp->frequency = p->radio_data.fm_freq; | |
211 | return 0; | |
212 | } | |
213 | ||
214 | static int set_frequency(struct poseidon *p, __u32 frequency) | |
215 | { | |
216 | __u32 freq ; | |
007ad830 | 217 | int ret, status; |
5b3f03f0 HS |
218 | |
219 | mutex_lock(&p->lock); | |
220 | ||
007ad830 HS |
221 | ret = send_set_req(p, TUNER_AUD_ANA_STD, |
222 | p->radio_data.pre_emphasis, &status); | |
5b3f03f0 HS |
223 | |
224 | freq = (frequency * 125) * 500 / 1000;/* kHZ */ | |
225 | if (freq < TUNER_FREQ_MIN_FM/1000 || freq > TUNER_FREQ_MAX_FM/1000) { | |
226 | ret = -EINVAL; | |
227 | goto error; | |
228 | } | |
229 | ||
230 | ret = send_set_req(p, TUNE_FREQ_SELECT, freq, &status); | |
231 | if (ret < 0) | |
232 | goto error ; | |
233 | ret = send_set_req(p, TAKE_REQUEST, 0, &status); | |
234 | ||
235 | set_current_state(TASK_INTERRUPTIBLE); | |
236 | schedule_timeout(HZ/4); | |
237 | if (!p->radio_data.is_radio_streaming) { | |
238 | ret = send_set_req(p, TAKE_REQUEST, 0, &status); | |
239 | ret = send_set_req(p, PLAY_SERVICE, | |
240 | TLG_TUNE_PLAY_SVC_START, &status); | |
241 | p->radio_data.is_radio_streaming = 1; | |
242 | } | |
243 | p->radio_data.fm_freq = frequency; | |
244 | error: | |
245 | mutex_unlock(&p->lock); | |
246 | return ret; | |
247 | } | |
248 | ||
278a58cf MN |
249 | static int fm_set_freq(struct file *file, void *priv, |
250 | struct v4l2_frequency *argp) | |
5b3f03f0 HS |
251 | { |
252 | struct poseidon *p = file->private_data; | |
253 | ||
254 | p->file_for_stream = file; | |
255 | #ifdef CONFIG_PM | |
256 | p->pm_suspend = pm_fm_suspend; | |
257 | p->pm_resume = pm_fm_resume; | |
258 | #endif | |
259 | return set_frequency(p, argp->frequency); | |
260 | } | |
261 | ||
278a58cf | 262 | static int tlg_fm_vidioc_g_ctrl(struct file *file, void *priv, |
5b3f03f0 HS |
263 | struct v4l2_control *arg) |
264 | { | |
007ad830 HS |
265 | return 0; |
266 | } | |
267 | ||
278a58cf | 268 | static int tlg_fm_vidioc_g_exts_ctrl(struct file *file, void *fh, |
007ad830 HS |
269 | struct v4l2_ext_controls *ctrls) |
270 | { | |
271 | struct poseidon *p = file->private_data; | |
272 | int i; | |
273 | ||
274 | if (ctrls->ctrl_class != V4L2_CTRL_CLASS_FM_TX) | |
275 | return -EINVAL; | |
276 | ||
277 | for (i = 0; i < ctrls->count; i++) { | |
278 | struct v4l2_ext_control *ctrl = ctrls->controls + i; | |
279 | ||
280 | if (ctrl->id != V4L2_CID_TUNE_PREEMPHASIS) | |
281 | continue; | |
282 | ||
283 | if (i < MAX_PREEMPHASIS) | |
284 | ctrl->value = p->radio_data.pre_emphasis; | |
285 | } | |
286 | return 0; | |
5b3f03f0 HS |
287 | } |
288 | ||
278a58cf | 289 | static int tlg_fm_vidioc_s_exts_ctrl(struct file *file, void *fh, |
007ad830 | 290 | struct v4l2_ext_controls *ctrls) |
5b3f03f0 | 291 | { |
007ad830 HS |
292 | int i; |
293 | ||
294 | if (ctrls->ctrl_class != V4L2_CTRL_CLASS_FM_TX) | |
295 | return -EINVAL; | |
296 | ||
297 | for (i = 0; i < ctrls->count; i++) { | |
298 | struct v4l2_ext_control *ctrl = ctrls->controls + i; | |
299 | ||
300 | if (ctrl->id != V4L2_CID_TUNE_PREEMPHASIS) | |
301 | continue; | |
302 | ||
303 | if (ctrl->value >= 0 && ctrl->value < MAX_PREEMPHASIS) { | |
304 | struct poseidon *p = file->private_data; | |
305 | int pre_emphasis = preemphasis[ctrl->value]; | |
306 | u32 status; | |
307 | ||
308 | send_set_req(p, TUNER_AUD_ANA_STD, | |
309 | pre_emphasis, &status); | |
310 | p->radio_data.pre_emphasis = pre_emphasis; | |
311 | } | |
312 | } | |
313 | return 0; | |
5b3f03f0 HS |
314 | } |
315 | ||
278a58cf | 316 | static int tlg_fm_vidioc_s_ctrl(struct file *file, void *priv, |
007ad830 | 317 | struct v4l2_control *ctrl) |
5b3f03f0 | 318 | { |
007ad830 | 319 | return 0; |
5b3f03f0 HS |
320 | } |
321 | ||
278a58cf | 322 | static int tlg_fm_vidioc_queryctrl(struct file *file, void *priv, |
007ad830 | 323 | struct v4l2_queryctrl *ctrl) |
5b3f03f0 | 324 | { |
007ad830 HS |
325 | if (!(ctrl->id & V4L2_CTRL_FLAG_NEXT_CTRL)) |
326 | return -EINVAL; | |
327 | ||
328 | ctrl->id &= ~V4L2_CTRL_FLAG_NEXT_CTRL; | |
329 | if (ctrl->id != V4L2_CID_TUNE_PREEMPHASIS) { | |
330 | /* return the next supported control */ | |
331 | ctrl->id = V4L2_CID_TUNE_PREEMPHASIS; | |
332 | v4l2_ctrl_query_fill(ctrl, V4L2_PREEMPHASIS_DISABLED, | |
333 | V4L2_PREEMPHASIS_75_uS, 1, | |
334 | V4L2_PREEMPHASIS_50_uS); | |
335 | ctrl->flags = V4L2_CTRL_FLAG_UPDATE; | |
336 | return 0; | |
337 | } | |
338 | return -EINVAL; | |
339 | } | |
340 | ||
278a58cf | 341 | static int tlg_fm_vidioc_querymenu(struct file *file, void *fh, |
007ad830 HS |
342 | struct v4l2_querymenu *qmenu) |
343 | { | |
344 | return v4l2_ctrl_query_menu(qmenu, NULL, NULL); | |
5b3f03f0 HS |
345 | } |
346 | ||
347 | static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *vt) | |
348 | { | |
349 | return vt->index > 0 ? -EINVAL : 0; | |
350 | } | |
351 | static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *va) | |
352 | { | |
353 | return (va->index != 0) ? -EINVAL : 0; | |
354 | } | |
355 | ||
356 | static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) | |
357 | { | |
358 | a->index = 0; | |
359 | a->mode = 0; | |
360 | a->capability = V4L2_AUDCAP_STEREO; | |
361 | strcpy(a->name, "Radio"); | |
362 | return 0; | |
363 | } | |
364 | ||
365 | static int vidioc_s_input(struct file *filp, void *priv, u32 i) | |
366 | { | |
367 | return (i != 0) ? -EINVAL : 0; | |
368 | } | |
369 | ||
370 | static int vidioc_g_input(struct file *filp, void *priv, u32 *i) | |
371 | { | |
372 | return (*i != 0) ? -EINVAL : 0; | |
373 | } | |
374 | ||
375 | static const struct v4l2_ioctl_ops poseidon_fm_ioctl_ops = { | |
376 | .vidioc_querycap = vidioc_querycap, | |
377 | .vidioc_g_audio = vidioc_g_audio, | |
378 | .vidioc_s_audio = vidioc_s_audio, | |
379 | .vidioc_g_input = vidioc_g_input, | |
380 | .vidioc_s_input = vidioc_s_input, | |
381 | .vidioc_queryctrl = tlg_fm_vidioc_queryctrl, | |
007ad830 | 382 | .vidioc_querymenu = tlg_fm_vidioc_querymenu, |
5b3f03f0 HS |
383 | .vidioc_g_ctrl = tlg_fm_vidioc_g_ctrl, |
384 | .vidioc_s_ctrl = tlg_fm_vidioc_s_ctrl, | |
007ad830 HS |
385 | .vidioc_s_ext_ctrls = tlg_fm_vidioc_s_exts_ctrl, |
386 | .vidioc_g_ext_ctrls = tlg_fm_vidioc_g_exts_ctrl, | |
5b3f03f0 HS |
387 | .vidioc_s_tuner = vidioc_s_tuner, |
388 | .vidioc_g_tuner = tlg_fm_vidioc_g_tuner, | |
389 | .vidioc_g_frequency = fm_get_freq, | |
390 | .vidioc_s_frequency = fm_set_freq, | |
391 | }; | |
392 | ||
393 | static struct video_device poseidon_fm_template = { | |
394 | .name = "Telegent-Radio", | |
395 | .fops = &poseidon_fm_fops, | |
396 | .minor = -1, | |
397 | .release = video_device_release, | |
398 | .ioctl_ops = &poseidon_fm_ioctl_ops, | |
399 | }; | |
400 | ||
401 | int poseidon_fm_init(struct poseidon *p) | |
402 | { | |
403 | struct video_device *fm_dev; | |
404 | ||
405 | fm_dev = vdev_init(p, &poseidon_fm_template); | |
406 | if (fm_dev == NULL) | |
407 | return -1; | |
408 | ||
409 | if (video_register_device(fm_dev, VFL_TYPE_RADIO, -1) < 0) { | |
410 | video_device_release(fm_dev); | |
411 | return -1; | |
412 | } | |
413 | p->radio_data.fm_dev = fm_dev; | |
414 | return 0; | |
415 | } | |
416 | ||
417 | int poseidon_fm_exit(struct poseidon *p) | |
418 | { | |
419 | destroy_video_device(&p->radio_data.fm_dev); | |
420 | return 0; | |
421 | } |