Commit | Line | Data |
---|---|---|
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> | |
668cb00e HV |
12 | #include <media/v4l2-event.h> |
13 | #include <media/v4l2-fh.h> | |
5b3f03f0 HS |
14 | #include <linux/sched.h> |
15 | ||
16 | #include "pd-common.h" | |
17 | #include "vendorcmds.h" | |
18 | ||
19 | static int set_frequency(struct poseidon *p, __u32 frequency); | |
20 | static int poseidon_fm_close(struct file *filp); | |
21 | static int poseidon_fm_open(struct file *filp); | |
22 | ||
8bdfe557 HV |
23 | #define TUNER_FREQ_MIN_FM 76000000U |
24 | #define TUNER_FREQ_MAX_FM 108000000U | |
5b3f03f0 | 25 | |
007ad830 HS |
26 | #define MAX_PREEMPHASIS (V4L2_PREEMPHASIS_75_uS + 1) |
27 | static int preemphasis[MAX_PREEMPHASIS] = { | |
28 | TLG_TUNE_ASTD_NONE, /* V4L2_PREEMPHASIS_DISABLED */ | |
29 | TLG_TUNE_ASTD_FM_EUR, /* V4L2_PREEMPHASIS_50_uS */ | |
30 | TLG_TUNE_ASTD_FM_US, /* V4L2_PREEMPHASIS_75_uS */ | |
31 | }; | |
32 | ||
5b3f03f0 HS |
33 | static int poseidon_check_mode_radio(struct poseidon *p) |
34 | { | |
007ad830 | 35 | int ret; |
5b3f03f0 HS |
36 | u32 status; |
37 | ||
38 | set_current_state(TASK_INTERRUPTIBLE); | |
39 | schedule_timeout(HZ/2); | |
40 | ret = usb_set_interface(p->udev, 0, BULK_ALTERNATE_IFACE); | |
41 | if (ret < 0) | |
42 | goto out; | |
43 | ||
44 | ret = set_tuner_mode(p, TLG_MODE_FM_RADIO); | |
45 | if (ret != 0) | |
46 | goto out; | |
47 | ||
48 | ret = send_set_req(p, SGNL_SRC_SEL, TLG_SIG_SRC_ANTENNA, &status); | |
007ad830 HS |
49 | ret = send_set_req(p, TUNER_AUD_ANA_STD, |
50 | p->radio_data.pre_emphasis, &status); | |
5b3f03f0 HS |
51 | ret |= send_set_req(p, TUNER_AUD_MODE, |
52 | TLG_TUNE_TVAUDIO_MODE_STEREO, &status); | |
53 | ret |= send_set_req(p, AUDIO_SAMPLE_RATE_SEL, | |
54 | ATV_AUDIO_RATE_48K, &status); | |
55 | ret |= send_set_req(p, TUNE_FREQ_SELECT, TUNER_FREQ_MIN_FM, &status); | |
56 | out: | |
57 | return ret; | |
58 | } | |
59 | ||
60 | #ifdef CONFIG_PM | |
61 | static int pm_fm_suspend(struct poseidon *p) | |
62 | { | |
63 | logpm(p); | |
64 | pm_alsa_suspend(p); | |
65 | usb_set_interface(p->udev, 0, 0); | |
66 | msleep(300); | |
67 | return 0; | |
68 | } | |
69 | ||
70 | static int pm_fm_resume(struct poseidon *p) | |
71 | { | |
72 | logpm(p); | |
73 | poseidon_check_mode_radio(p); | |
74 | set_frequency(p, p->radio_data.fm_freq); | |
75 | pm_alsa_resume(p); | |
76 | return 0; | |
77 | } | |
78 | #endif | |
79 | ||
80 | static int poseidon_fm_open(struct file *filp) | |
81 | { | |
668cb00e | 82 | struct poseidon *p = video_drvdata(filp); |
5b3f03f0 HS |
83 | int ret = 0; |
84 | ||
5b3f03f0 HS |
85 | mutex_lock(&p->lock); |
86 | if (p->state & POSEIDON_STATE_DISCONNECT) { | |
87 | ret = -ENODEV; | |
88 | goto out; | |
89 | } | |
90 | ||
91 | if (p->state && !(p->state & POSEIDON_STATE_FM)) { | |
92 | ret = -EBUSY; | |
93 | goto out; | |
94 | } | |
668cb00e HV |
95 | ret = v4l2_fh_open(filp); |
96 | if (ret) | |
97 | goto out; | |
5b3f03f0 HS |
98 | |
99 | usb_autopm_get_interface(p->interface); | |
100 | if (0 == p->state) { | |
668cb00e HV |
101 | struct video_device *vfd = &p->radio_data.fm_dev; |
102 | ||
007ad830 HS |
103 | /* default pre-emphasis */ |
104 | if (p->radio_data.pre_emphasis == 0) | |
105 | p->radio_data.pre_emphasis = TLG_TUNE_ASTD_FM_EUR; | |
5b3f03f0 HS |
106 | set_debug_mode(vfd, debug_mode); |
107 | ||
108 | ret = poseidon_check_mode_radio(p); | |
109 | if (ret < 0) { | |
110 | usb_autopm_put_interface(p->interface); | |
111 | goto out; | |
112 | } | |
113 | p->state |= POSEIDON_STATE_FM; | |
114 | } | |
5b3f03f0 | 115 | kref_get(&p->kref); |
5b3f03f0 HS |
116 | out: |
117 | mutex_unlock(&p->lock); | |
118 | return ret; | |
119 | } | |
120 | ||
121 | static int poseidon_fm_close(struct file *filp) | |
122 | { | |
668cb00e | 123 | struct poseidon *p = video_drvdata(filp); |
5b3f03f0 HS |
124 | struct radio_data *fm = &p->radio_data; |
125 | uint32_t status; | |
126 | ||
127 | mutex_lock(&p->lock); | |
668cb00e | 128 | if (v4l2_fh_is_singular_file(filp)) |
5b3f03f0 HS |
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); | |
668cb00e | 139 | return v4l2_fh_release(filp); |
5b3f03f0 HS |
140 | } |
141 | ||
142 | static int vidioc_querycap(struct file *file, void *priv, | |
143 | struct v4l2_capability *v) | |
144 | { | |
668cb00e | 145 | struct poseidon *p = video_drvdata(file); |
5b3f03f0 HS |
146 | |
147 | strlcpy(v->driver, "tele-radio", sizeof(v->driver)); | |
148 | strlcpy(v->card, "Telegent Poseidon", sizeof(v->card)); | |
149 | usb_make_path(p->udev, v->bus_info, sizeof(v->bus_info)); | |
42e509c6 HV |
150 | v->device_caps = V4L2_CAP_TUNER | V4L2_CAP_RADIO; |
151 | /* Report all capabilities of the USB device */ | |
152 | v->capabilities = v->device_caps | V4L2_CAP_DEVICE_CAPS | | |
153 | V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VBI_CAPTURE | | |
154 | V4L2_CAP_AUDIO | V4L2_CAP_STREAMING | | |
155 | V4L2_CAP_READWRITE; | |
5b3f03f0 HS |
156 | return 0; |
157 | } | |
158 | ||
159 | static const struct v4l2_file_operations poseidon_fm_fops = { | |
160 | .owner = THIS_MODULE, | |
161 | .open = poseidon_fm_open, | |
162 | .release = poseidon_fm_close, | |
668cb00e | 163 | .poll = v4l2_ctrl_poll, |
54dd0dde | 164 | .unlocked_ioctl = video_ioctl2, |
5b3f03f0 HS |
165 | }; |
166 | ||
278a58cf MN |
167 | static int tlg_fm_vidioc_g_tuner(struct file *file, void *priv, |
168 | struct v4l2_tuner *vt) | |
5b3f03f0 | 169 | { |
668cb00e | 170 | struct poseidon *p = video_drvdata(file); |
5b3f03f0 HS |
171 | struct tuner_fm_sig_stat_s fm_stat = {}; |
172 | int ret, status, count = 5; | |
5b3f03f0 HS |
173 | |
174 | if (vt->index != 0) | |
175 | return -EINVAL; | |
176 | ||
177 | vt->type = V4L2_TUNER_RADIO; | |
8bdfe557 HV |
178 | vt->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW; |
179 | vt->rangelow = TUNER_FREQ_MIN_FM * 2 / 125; | |
180 | vt->rangehigh = TUNER_FREQ_MAX_FM * 2 / 125; | |
5b3f03f0 HS |
181 | vt->rxsubchans = V4L2_TUNER_SUB_STEREO; |
182 | vt->audmode = V4L2_TUNER_MODE_STEREO; | |
183 | vt->signal = 0; | |
184 | vt->afc = 0; | |
8bdfe557 | 185 | strlcpy(vt->name, "Radio", sizeof(vt->name)); |
5b3f03f0 HS |
186 | |
187 | mutex_lock(&p->lock); | |
188 | ret = send_get_req(p, TUNER_STATUS, TLG_MODE_FM_RADIO, | |
189 | &fm_stat, &status, sizeof(fm_stat)); | |
190 | ||
191 | while (fm_stat.sig_lock_busy && count-- && !ret) { | |
192 | set_current_state(TASK_INTERRUPTIBLE); | |
193 | schedule_timeout(HZ); | |
194 | ||
195 | ret = send_get_req(p, TUNER_STATUS, TLG_MODE_FM_RADIO, | |
196 | &fm_stat, &status, sizeof(fm_stat)); | |
197 | } | |
198 | mutex_unlock(&p->lock); | |
199 | ||
200 | if (ret || status) { | |
201 | vt->signal = 0; | |
202 | } else if ((fm_stat.sig_present || fm_stat.sig_locked) | |
203 | && fm_stat.sig_strength == 0) { | |
204 | vt->signal = 0xffff; | |
205 | } else | |
206 | vt->signal = (fm_stat.sig_strength * 255 / 10) << 8; | |
207 | ||
208 | return 0; | |
209 | } | |
210 | ||
278a58cf MN |
211 | static int fm_get_freq(struct file *file, void *priv, |
212 | struct v4l2_frequency *argp) | |
5b3f03f0 | 213 | { |
668cb00e | 214 | struct poseidon *p = video_drvdata(file); |
5b3f03f0 | 215 | |
8bdfe557 HV |
216 | if (argp->tuner) |
217 | return -EINVAL; | |
5b3f03f0 HS |
218 | argp->frequency = p->radio_data.fm_freq; |
219 | return 0; | |
220 | } | |
221 | ||
222 | static int set_frequency(struct poseidon *p, __u32 frequency) | |
223 | { | |
224 | __u32 freq ; | |
007ad830 | 225 | int ret, status; |
5b3f03f0 HS |
226 | |
227 | mutex_lock(&p->lock); | |
228 | ||
007ad830 HS |
229 | ret = send_set_req(p, TUNER_AUD_ANA_STD, |
230 | p->radio_data.pre_emphasis, &status); | |
5b3f03f0 | 231 | |
8bdfe557 HV |
232 | freq = (frequency * 125) / 2; /* Hz */ |
233 | freq = clamp(freq, TUNER_FREQ_MIN_FM, TUNER_FREQ_MAX_FM); | |
5b3f03f0 HS |
234 | |
235 | ret = send_set_req(p, TUNE_FREQ_SELECT, freq, &status); | |
236 | if (ret < 0) | |
237 | goto error ; | |
238 | ret = send_set_req(p, TAKE_REQUEST, 0, &status); | |
239 | ||
240 | set_current_state(TASK_INTERRUPTIBLE); | |
241 | schedule_timeout(HZ/4); | |
242 | if (!p->radio_data.is_radio_streaming) { | |
243 | ret = send_set_req(p, TAKE_REQUEST, 0, &status); | |
244 | ret = send_set_req(p, PLAY_SERVICE, | |
245 | TLG_TUNE_PLAY_SVC_START, &status); | |
246 | p->radio_data.is_radio_streaming = 1; | |
247 | } | |
8bdfe557 | 248 | p->radio_data.fm_freq = freq * 2 / 125; |
5b3f03f0 HS |
249 | error: |
250 | mutex_unlock(&p->lock); | |
251 | return ret; | |
252 | } | |
253 | ||
278a58cf MN |
254 | static int fm_set_freq(struct file *file, void *priv, |
255 | struct v4l2_frequency *argp) | |
5b3f03f0 | 256 | { |
668cb00e | 257 | struct poseidon *p = video_drvdata(file); |
5b3f03f0 | 258 | |
8bdfe557 HV |
259 | if (argp->tuner) |
260 | return -EINVAL; | |
261 | p->file_for_stream = file; | |
5b3f03f0 HS |
262 | #ifdef CONFIG_PM |
263 | p->pm_suspend = pm_fm_suspend; | |
264 | p->pm_resume = pm_fm_resume; | |
265 | #endif | |
266 | return set_frequency(p, argp->frequency); | |
267 | } | |
268 | ||
173fdb8a | 269 | static int tlg_fm_s_ctrl(struct v4l2_ctrl *ctrl) |
5b3f03f0 | 270 | { |
173fdb8a HV |
271 | struct poseidon *p = container_of(ctrl->handler, struct poseidon, |
272 | radio_data.ctrl_handler); | |
273 | int pre_emphasis; | |
274 | u32 status; | |
007ad830 | 275 | |
173fdb8a HV |
276 | switch (ctrl->id) { |
277 | case V4L2_CID_TUNE_PREEMPHASIS: | |
278 | pre_emphasis = preemphasis[ctrl->val]; | |
279 | send_set_req(p, TUNER_AUD_ANA_STD, pre_emphasis, &status); | |
280 | p->radio_data.pre_emphasis = pre_emphasis; | |
007ad830 HS |
281 | return 0; |
282 | } | |
283 | return -EINVAL; | |
284 | } | |
285 | ||
5b3f03f0 HS |
286 | static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *vt) |
287 | { | |
288 | return vt->index > 0 ? -EINVAL : 0; | |
289 | } | |
5b3f03f0 | 290 | |
173fdb8a HV |
291 | static const struct v4l2_ctrl_ops tlg_fm_ctrl_ops = { |
292 | .s_ctrl = tlg_fm_s_ctrl, | |
293 | }; | |
294 | ||
5b3f03f0 HS |
295 | static const struct v4l2_ioctl_ops poseidon_fm_ioctl_ops = { |
296 | .vidioc_querycap = vidioc_querycap, | |
5b3f03f0 HS |
297 | .vidioc_s_tuner = vidioc_s_tuner, |
298 | .vidioc_g_tuner = tlg_fm_vidioc_g_tuner, | |
299 | .vidioc_g_frequency = fm_get_freq, | |
300 | .vidioc_s_frequency = fm_set_freq, | |
668cb00e HV |
301 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, |
302 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
5b3f03f0 HS |
303 | }; |
304 | ||
305 | static struct video_device poseidon_fm_template = { | |
306 | .name = "Telegent-Radio", | |
307 | .fops = &poseidon_fm_fops, | |
308 | .minor = -1, | |
6fef4907 | 309 | .release = video_device_release_empty, |
5b3f03f0 HS |
310 | .ioctl_ops = &poseidon_fm_ioctl_ops, |
311 | }; | |
312 | ||
313 | int poseidon_fm_init(struct poseidon *p) | |
314 | { | |
6fef4907 | 315 | struct video_device *vfd = &p->radio_data.fm_dev; |
173fdb8a | 316 | struct v4l2_ctrl_handler *hdl = &p->radio_data.ctrl_handler; |
5b3f03f0 | 317 | |
6fef4907 | 318 | *vfd = poseidon_fm_template; |
5b3f03f0 | 319 | |
8bdfe557 | 320 | set_frequency(p, TUNER_FREQ_MIN_FM); |
173fdb8a HV |
321 | v4l2_ctrl_handler_init(hdl, 1); |
322 | v4l2_ctrl_new_std_menu(hdl, &tlg_fm_ctrl_ops, V4L2_CID_TUNE_PREEMPHASIS, | |
323 | V4L2_PREEMPHASIS_75_uS, 0, V4L2_PREEMPHASIS_50_uS); | |
324 | if (hdl->error) { | |
325 | v4l2_ctrl_handler_free(hdl); | |
326 | return hdl->error; | |
327 | } | |
328 | vfd->v4l2_dev = &p->v4l2_dev; | |
329 | vfd->ctrl_handler = hdl; | |
668cb00e | 330 | set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); |
173fdb8a | 331 | video_set_drvdata(vfd, p); |
6fef4907 | 332 | return video_register_device(vfd, VFL_TYPE_RADIO, -1); |
5b3f03f0 HS |
333 | } |
334 | ||
335 | int poseidon_fm_exit(struct poseidon *p) | |
336 | { | |
173fdb8a | 337 | v4l2_ctrl_handler_free(&p->radio_data.ctrl_handler); |
5b3f03f0 HS |
338 | return 0; |
339 | } |