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Commit | Line | Data |
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1a0adaf3 HV |
1 | /* |
2 | gpio functions. | |
3 | Merging GPIO support into driver: | |
4 | Copyright (C) 2004 Chris Kennedy <c@groovy.org> | |
5 | Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl> | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #include "ivtv-driver.h" | |
23 | #include "ivtv-cards.h" | |
24 | #include "ivtv-gpio.h" | |
0e614cd1 | 25 | #include "tuner-xc2028.h" |
1a0adaf3 | 26 | #include <media/tuner.h> |
2fd78144 | 27 | #include <media/v4l2-ctrls.h> |
1a0adaf3 HV |
28 | |
29 | /* | |
30 | * GPIO assignment of Yuan MPG600/MPG160 | |
31 | * | |
32 | * bit 15 14 13 12 | 11 10 9 8 | 7 6 5 4 | 3 2 1 0 | |
33 | * OUTPUT IN1 IN0 AM3 AM2 AM1 AM0 | |
34 | * INPUT DM1 DM0 | |
35 | * | |
36 | * IN* : Input selection | |
37 | * IN1 IN0 | |
38 | * 1 1 N/A | |
39 | * 1 0 Line | |
40 | * 0 1 N/A | |
41 | * 0 0 Tuner | |
42 | * | |
43 | * AM* : Audio Mode | |
44 | * AM3 0: Normal 1: Mixed(Sub+Main channel) | |
45 | * AM2 0: Subchannel 1: Main channel | |
46 | * AM1 0: Stereo 1: Mono | |
47 | * AM0 0: Normal 1: Mute | |
48 | * | |
49 | * DM* : Detected tuner audio Mode | |
50 | * DM1 0: Stereo 1: Mono | |
51 | * DM0 0: Multiplex 1: Normal | |
52 | * | |
53 | * GPIO Initial Settings | |
54 | * MPG600 MPG160 | |
55 | * DIR 0x3080 0x7080 | |
56 | * OUTPUT 0x000C 0x400C | |
57 | * | |
58 | * Special thanks to Makoto Iguchi <iguchi@tahoo.org> and Mr. Anonymous | |
59 | * for analyzing GPIO of MPG160. | |
60 | * | |
61 | ***************************************************************************** | |
62 | * | |
63 | * GPIO assignment of Avermedia M179 (per information direct from AVerMedia) | |
64 | * | |
65 | * bit 15 14 13 12 | 11 10 9 8 | 7 6 5 4 | 3 2 1 0 | |
66 | * OUTPUT IN0 AM0 IN1 AM1 AM2 IN2 BR0 BR1 | |
67 | * INPUT | |
68 | * | |
69 | * IN* : Input selection | |
70 | * IN0 IN1 IN2 | |
71 | * * 1 * Mute | |
72 | * 0 0 0 Line-In | |
73 | * 1 0 0 TV Tuner Audio | |
74 | * 0 0 1 FM Audio | |
75 | * 1 0 1 Mute | |
76 | * | |
77 | * AM* : Audio Mode | |
78 | * AM0 AM1 AM2 | |
79 | * 0 0 0 TV Tuner Audio: L_OUT=(L+R)/2, R_OUT=SAP | |
80 | * 0 0 1 TV Tuner Audio: L_OUT=R_OUT=SAP (SAP) | |
81 | * 0 1 0 TV Tuner Audio: L_OUT=L, R_OUT=R (stereo) | |
82 | * 0 1 1 TV Tuner Audio: mute | |
83 | * 1 * * TV Tuner Audio: L_OUT=R_OUT=(L+R)/2 (mono) | |
84 | * | |
85 | * BR* : Audio Sample Rate (BR stands for bitrate for some reason) | |
86 | * BR0 BR1 | |
87 | * 0 0 32 kHz | |
88 | * 0 1 44.1 kHz | |
89 | * 1 0 48 kHz | |
90 | * | |
91 | * DM* : Detected tuner audio Mode | |
92 | * Unknown currently | |
93 | * | |
94 | * Special thanks to AVerMedia Technologies, Inc. and Jiun-Kuei Jung at | |
95 | * AVerMedia for providing the GPIO information used to add support | |
96 | * for the M179 cards. | |
97 | */ | |
98 | ||
99 | /********************* GPIO stuffs *********************/ | |
100 | ||
101 | /* GPIO registers */ | |
102 | #define IVTV_REG_GPIO_IN 0x9008 | |
103 | #define IVTV_REG_GPIO_OUT 0x900c | |
104 | #define IVTV_REG_GPIO_DIR 0x9020 | |
105 | ||
106 | void ivtv_reset_ir_gpio(struct ivtv *itv) | |
107 | { | |
108 | int curdir, curout; | |
109 | ||
110 | if (itv->card->type != IVTV_CARD_PVR_150) | |
111 | return; | |
112 | IVTV_DEBUG_INFO("Resetting PVR150 IR\n"); | |
113 | curout = read_reg(IVTV_REG_GPIO_OUT); | |
114 | curdir = read_reg(IVTV_REG_GPIO_DIR); | |
115 | curdir |= 0x80; | |
116 | write_reg(curdir, IVTV_REG_GPIO_DIR); | |
117 | curout = (curout & ~0xF) | 1; | |
118 | write_reg(curout, IVTV_REG_GPIO_OUT); | |
119 | /* We could use something else for smaller time */ | |
97989ada | 120 | schedule_timeout_interruptible(msecs_to_jiffies(1)); |
1a0adaf3 HV |
121 | curout |= 2; |
122 | write_reg(curout, IVTV_REG_GPIO_OUT); | |
123 | curdir &= ~0x80; | |
124 | write_reg(curdir, IVTV_REG_GPIO_DIR); | |
125 | } | |
126 | ||
0e614cd1 | 127 | /* Xceive tuner reset function */ |
d7cba043 | 128 | int ivtv_reset_tuner_gpio(void *dev, int component, int cmd, int value) |
0e614cd1 HV |
129 | { |
130 | struct i2c_algo_bit_data *algo = dev; | |
131 | struct ivtv *itv = algo->data; | |
136531da | 132 | u32 curout; |
0e614cd1 HV |
133 | |
134 | if (cmd != XC2028_TUNER_RESET) | |
135 | return 0; | |
136 | IVTV_DEBUG_INFO("Resetting tuner\n"); | |
137 | curout = read_reg(IVTV_REG_GPIO_OUT); | |
136531da | 138 | curout &= ~(1 << itv->card->xceive_pin); |
0e614cd1 HV |
139 | write_reg(curout, IVTV_REG_GPIO_OUT); |
140 | schedule_timeout_interruptible(msecs_to_jiffies(1)); | |
141 | ||
136531da | 142 | curout |= 1 << itv->card->xceive_pin; |
0e614cd1 HV |
143 | write_reg(curout, IVTV_REG_GPIO_OUT); |
144 | schedule_timeout_interruptible(msecs_to_jiffies(1)); | |
145 | return 0; | |
146 | } | |
1a0adaf3 | 147 | |
67ec09fd | 148 | static inline struct ivtv *sd_to_ivtv(struct v4l2_subdev *sd) |
1a0adaf3 | 149 | { |
67ec09fd | 150 | return container_of(sd, struct ivtv, sd_gpio); |
1a0adaf3 HV |
151 | } |
152 | ||
2fd78144 HV |
153 | static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) |
154 | { | |
155 | return &container_of(ctrl->handler, struct ivtv, hdl_gpio)->sd_gpio; | |
156 | } | |
1a0adaf3 | 157 | |
67ec09fd | 158 | static int subdev_s_clock_freq(struct v4l2_subdev *sd, u32 freq) |
1a0adaf3 | 159 | { |
67ec09fd | 160 | struct ivtv *itv = sd_to_ivtv(sd); |
1a0adaf3 HV |
161 | u16 mask, data; |
162 | ||
67ec09fd HV |
163 | mask = itv->card->gpio_audio_freq.mask; |
164 | switch (freq) { | |
165 | case 32000: | |
166 | data = itv->card->gpio_audio_freq.f32000; | |
167 | break; | |
168 | case 44100: | |
169 | data = itv->card->gpio_audio_freq.f44100; | |
170 | break; | |
171 | case 48000: | |
172 | default: | |
173 | data = itv->card->gpio_audio_freq.f48000; | |
1a0adaf3 | 174 | break; |
67ec09fd HV |
175 | } |
176 | if (mask) | |
177 | write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT); | |
178 | return 0; | |
179 | } | |
1a0adaf3 | 180 | |
67ec09fd HV |
181 | static int subdev_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) |
182 | { | |
183 | struct ivtv *itv = sd_to_ivtv(sd); | |
184 | u16 mask; | |
185 | ||
186 | mask = itv->card->gpio_audio_detect.mask; | |
187 | if (mask == 0 || (read_reg(IVTV_REG_GPIO_IN) & mask)) | |
dc47b778 HV |
188 | vt->rxsubchans = V4L2_TUNER_SUB_STEREO | |
189 | V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; | |
67ec09fd HV |
190 | else |
191 | vt->rxsubchans = V4L2_TUNER_SUB_MONO; | |
192 | return 0; | |
193 | } | |
1a0adaf3 | 194 | |
67ec09fd HV |
195 | static int subdev_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) |
196 | { | |
197 | struct ivtv *itv = sd_to_ivtv(sd); | |
198 | u16 mask, data; | |
1a0adaf3 | 199 | |
67ec09fd HV |
200 | mask = itv->card->gpio_audio_mode.mask; |
201 | switch (vt->audmode) { | |
202 | case V4L2_TUNER_MODE_LANG1: | |
203 | data = itv->card->gpio_audio_mode.lang1; | |
204 | break; | |
205 | case V4L2_TUNER_MODE_LANG2: | |
206 | data = itv->card->gpio_audio_mode.lang2; | |
207 | break; | |
208 | case V4L2_TUNER_MODE_MONO: | |
209 | data = itv->card->gpio_audio_mode.mono; | |
1a0adaf3 | 210 | break; |
67ec09fd HV |
211 | case V4L2_TUNER_MODE_STEREO: |
212 | case V4L2_TUNER_MODE_LANG1_LANG2: | |
213 | default: | |
214 | data = itv->card->gpio_audio_mode.stereo; | |
215 | break; | |
216 | } | |
217 | if (mask) | |
218 | write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT); | |
219 | return 0; | |
220 | } | |
221 | ||
222 | static int subdev_s_radio(struct v4l2_subdev *sd) | |
223 | { | |
224 | struct ivtv *itv = sd_to_ivtv(sd); | |
225 | u16 mask, data; | |
226 | ||
227 | mask = itv->card->gpio_audio_input.mask; | |
228 | data = itv->card->gpio_audio_input.radio; | |
229 | if (mask) | |
230 | write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT); | |
231 | return 0; | |
232 | } | |
1a0adaf3 | 233 | |
5325b427 HV |
234 | static int subdev_s_audio_routing(struct v4l2_subdev *sd, |
235 | u32 input, u32 output, u32 config) | |
67ec09fd HV |
236 | { |
237 | struct ivtv *itv = sd_to_ivtv(sd); | |
238 | u16 mask, data; | |
239 | ||
5325b427 | 240 | if (input > 2) |
67ec09fd HV |
241 | return -EINVAL; |
242 | mask = itv->card->gpio_audio_input.mask; | |
5325b427 | 243 | switch (input) { |
67ec09fd | 244 | case 0: |
1a0adaf3 HV |
245 | data = itv->card->gpio_audio_input.tuner; |
246 | break; | |
67ec09fd HV |
247 | case 1: |
248 | data = itv->card->gpio_audio_input.linein; | |
249 | break; | |
250 | case 2: | |
251 | default: | |
252 | data = itv->card->gpio_audio_input.radio; | |
1a0adaf3 | 253 | break; |
67ec09fd HV |
254 | } |
255 | if (mask) | |
256 | write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT); | |
257 | return 0; | |
258 | } | |
1a0adaf3 | 259 | |
2fd78144 | 260 | static int subdev_s_ctrl(struct v4l2_ctrl *ctrl) |
67ec09fd | 261 | { |
2fd78144 | 262 | struct v4l2_subdev *sd = to_sd(ctrl); |
67ec09fd HV |
263 | struct ivtv *itv = sd_to_ivtv(sd); |
264 | u16 mask, data; | |
1a0adaf3 | 265 | |
2fd78144 HV |
266 | switch (ctrl->id) { |
267 | case V4L2_CID_AUDIO_MUTE: | |
268 | mask = itv->card->gpio_audio_mute.mask; | |
269 | data = ctrl->val ? itv->card->gpio_audio_mute.mute : 0; | |
270 | if (mask) | |
271 | write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | | |
272 | (data & mask), IVTV_REG_GPIO_OUT); | |
273 | return 0; | |
274 | } | |
275 | return -EINVAL; | |
67ec09fd HV |
276 | } |
277 | ||
67ec09fd HV |
278 | |
279 | static int subdev_log_status(struct v4l2_subdev *sd) | |
280 | { | |
281 | struct ivtv *itv = sd_to_ivtv(sd); | |
1a0adaf3 | 282 | |
67ec09fd | 283 | IVTV_INFO("GPIO status: DIR=0x%04x OUT=0x%04x IN=0x%04x\n", |
1a0adaf3 HV |
284 | read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT), |
285 | read_reg(IVTV_REG_GPIO_IN)); | |
2fd78144 | 286 | v4l2_ctrl_handler_log_status(&itv->hdl_gpio, sd->name); |
67ec09fd HV |
287 | return 0; |
288 | } | |
1a0adaf3 | 289 | |
5325b427 HV |
290 | static int subdev_s_video_routing(struct v4l2_subdev *sd, |
291 | u32 input, u32 output, u32 config) | |
67ec09fd HV |
292 | { |
293 | struct ivtv *itv = sd_to_ivtv(sd); | |
294 | u16 mask, data; | |
1a0adaf3 | 295 | |
5325b427 | 296 | if (input > 2) /* 0:Tuner 1:Composite 2:S-Video */ |
1a0adaf3 | 297 | return -EINVAL; |
67ec09fd | 298 | mask = itv->card->gpio_video_input.mask; |
5325b427 | 299 | if (input == 0) |
67ec09fd | 300 | data = itv->card->gpio_video_input.tuner; |
5325b427 | 301 | else if (input == 1) |
67ec09fd HV |
302 | data = itv->card->gpio_video_input.composite; |
303 | else | |
304 | data = itv->card->gpio_video_input.svideo; | |
1a0adaf3 HV |
305 | if (mask) |
306 | write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT); | |
307 | return 0; | |
308 | } | |
67ec09fd | 309 | |
2fd78144 HV |
310 | static const struct v4l2_ctrl_ops gpio_ctrl_ops = { |
311 | .s_ctrl = subdev_s_ctrl, | |
312 | }; | |
313 | ||
67ec09fd HV |
314 | static const struct v4l2_subdev_core_ops subdev_core_ops = { |
315 | .log_status = subdev_log_status, | |
2fd78144 HV |
316 | .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, |
317 | .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, | |
318 | .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, | |
319 | .g_ctrl = v4l2_subdev_g_ctrl, | |
320 | .s_ctrl = v4l2_subdev_s_ctrl, | |
321 | .queryctrl = v4l2_subdev_queryctrl, | |
322 | .querymenu = v4l2_subdev_querymenu, | |
67ec09fd HV |
323 | }; |
324 | ||
325 | static const struct v4l2_subdev_tuner_ops subdev_tuner_ops = { | |
67ec09fd HV |
326 | .s_radio = subdev_s_radio, |
327 | .g_tuner = subdev_g_tuner, | |
328 | .s_tuner = subdev_s_tuner, | |
329 | }; | |
330 | ||
331 | static const struct v4l2_subdev_audio_ops subdev_audio_ops = { | |
332 | .s_clock_freq = subdev_s_clock_freq, | |
333 | .s_routing = subdev_s_audio_routing, | |
334 | }; | |
335 | ||
336 | static const struct v4l2_subdev_video_ops subdev_video_ops = { | |
337 | .s_routing = subdev_s_video_routing, | |
338 | }; | |
339 | ||
340 | static const struct v4l2_subdev_ops subdev_ops = { | |
341 | .core = &subdev_core_ops, | |
342 | .tuner = &subdev_tuner_ops, | |
343 | .audio = &subdev_audio_ops, | |
344 | .video = &subdev_video_ops, | |
345 | }; | |
346 | ||
347 | int ivtv_gpio_init(struct ivtv *itv) | |
348 | { | |
349 | u16 pin = 0; | |
350 | ||
351 | if (itv->card->xceive_pin) | |
352 | pin = 1 << itv->card->xceive_pin; | |
353 | ||
354 | if ((itv->card->gpio_init.direction | pin) == 0) | |
355 | return 0; | |
356 | ||
357 | IVTV_DEBUG_INFO("GPIO initial dir: %08x out: %08x\n", | |
358 | read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT)); | |
359 | ||
360 | /* init output data then direction */ | |
361 | write_reg(itv->card->gpio_init.initial_value | pin, IVTV_REG_GPIO_OUT); | |
362 | write_reg(itv->card->gpio_init.direction | pin, IVTV_REG_GPIO_DIR); | |
363 | v4l2_subdev_init(&itv->sd_gpio, &subdev_ops); | |
8ac05ae3 | 364 | snprintf(itv->sd_gpio.name, sizeof(itv->sd_gpio.name), "%s-gpio", itv->v4l2_dev.name); |
67ec09fd | 365 | itv->sd_gpio.grp_id = IVTV_HW_GPIO; |
2fd78144 HV |
366 | v4l2_ctrl_handler_init(&itv->hdl_gpio, 1); |
367 | v4l2_ctrl_new_std(&itv->hdl_gpio, &gpio_ctrl_ops, | |
368 | V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); | |
369 | if (itv->hdl_gpio.error) | |
370 | return itv->hdl_gpio.error; | |
371 | itv->sd_gpio.ctrl_handler = &itv->hdl_gpio; | |
372 | v4l2_ctrl_handler_setup(&itv->hdl_gpio); | |
8ac05ae3 | 373 | return v4l2_device_register_subdev(&itv->v4l2_dev, &itv->sd_gpio); |
67ec09fd | 374 | } |