Commit | Line | Data |
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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1a0adaf3 HV |
2 | /* |
3 | gpio functions. | |
4 | Merging GPIO support into driver: | |
5 | Copyright (C) 2004 Chris Kennedy <c@groovy.org> | |
6 | Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl> | |
7 | ||
1a0adaf3 HV |
8 | */ |
9 | ||
10 | #include "ivtv-driver.h" | |
11 | #include "ivtv-cards.h" | |
12 | #include "ivtv-gpio.h" | |
0e614cd1 | 13 | #include "tuner-xc2028.h" |
1a0adaf3 | 14 | #include <media/tuner.h> |
2fd78144 | 15 | #include <media/v4l2-ctrls.h> |
1a0adaf3 HV |
16 | |
17 | /* | |
18 | * GPIO assignment of Yuan MPG600/MPG160 | |
19 | * | |
20 | * bit 15 14 13 12 | 11 10 9 8 | 7 6 5 4 | 3 2 1 0 | |
21 | * OUTPUT IN1 IN0 AM3 AM2 AM1 AM0 | |
22 | * INPUT DM1 DM0 | |
23 | * | |
24 | * IN* : Input selection | |
25 | * IN1 IN0 | |
26 | * 1 1 N/A | |
27 | * 1 0 Line | |
28 | * 0 1 N/A | |
29 | * 0 0 Tuner | |
30 | * | |
31 | * AM* : Audio Mode | |
32 | * AM3 0: Normal 1: Mixed(Sub+Main channel) | |
33 | * AM2 0: Subchannel 1: Main channel | |
34 | * AM1 0: Stereo 1: Mono | |
35 | * AM0 0: Normal 1: Mute | |
36 | * | |
37 | * DM* : Detected tuner audio Mode | |
38 | * DM1 0: Stereo 1: Mono | |
39 | * DM0 0: Multiplex 1: Normal | |
40 | * | |
41 | * GPIO Initial Settings | |
42 | * MPG600 MPG160 | |
43 | * DIR 0x3080 0x7080 | |
44 | * OUTPUT 0x000C 0x400C | |
45 | * | |
46 | * Special thanks to Makoto Iguchi <iguchi@tahoo.org> and Mr. Anonymous | |
47 | * for analyzing GPIO of MPG160. | |
48 | * | |
49 | ***************************************************************************** | |
50 | * | |
51 | * GPIO assignment of Avermedia M179 (per information direct from AVerMedia) | |
52 | * | |
53 | * bit 15 14 13 12 | 11 10 9 8 | 7 6 5 4 | 3 2 1 0 | |
54 | * OUTPUT IN0 AM0 IN1 AM1 AM2 IN2 BR0 BR1 | |
55 | * INPUT | |
56 | * | |
57 | * IN* : Input selection | |
58 | * IN0 IN1 IN2 | |
59 | * * 1 * Mute | |
60 | * 0 0 0 Line-In | |
61 | * 1 0 0 TV Tuner Audio | |
62 | * 0 0 1 FM Audio | |
63 | * 1 0 1 Mute | |
64 | * | |
65 | * AM* : Audio Mode | |
66 | * AM0 AM1 AM2 | |
67 | * 0 0 0 TV Tuner Audio: L_OUT=(L+R)/2, R_OUT=SAP | |
68 | * 0 0 1 TV Tuner Audio: L_OUT=R_OUT=SAP (SAP) | |
69 | * 0 1 0 TV Tuner Audio: L_OUT=L, R_OUT=R (stereo) | |
70 | * 0 1 1 TV Tuner Audio: mute | |
71 | * 1 * * TV Tuner Audio: L_OUT=R_OUT=(L+R)/2 (mono) | |
72 | * | |
73 | * BR* : Audio Sample Rate (BR stands for bitrate for some reason) | |
74 | * BR0 BR1 | |
75 | * 0 0 32 kHz | |
76 | * 0 1 44.1 kHz | |
77 | * 1 0 48 kHz | |
78 | * | |
79 | * DM* : Detected tuner audio Mode | |
80 | * Unknown currently | |
81 | * | |
82 | * Special thanks to AVerMedia Technologies, Inc. and Jiun-Kuei Jung at | |
83 | * AVerMedia for providing the GPIO information used to add support | |
84 | * for the M179 cards. | |
85 | */ | |
86 | ||
87 | /********************* GPIO stuffs *********************/ | |
88 | ||
89 | /* GPIO registers */ | |
90 | #define IVTV_REG_GPIO_IN 0x9008 | |
91 | #define IVTV_REG_GPIO_OUT 0x900c | |
92 | #define IVTV_REG_GPIO_DIR 0x9020 | |
93 | ||
94 | void ivtv_reset_ir_gpio(struct ivtv *itv) | |
95 | { | |
96 | int curdir, curout; | |
97 | ||
98 | if (itv->card->type != IVTV_CARD_PVR_150) | |
99 | return; | |
100 | IVTV_DEBUG_INFO("Resetting PVR150 IR\n"); | |
101 | curout = read_reg(IVTV_REG_GPIO_OUT); | |
102 | curdir = read_reg(IVTV_REG_GPIO_DIR); | |
103 | curdir |= 0x80; | |
104 | write_reg(curdir, IVTV_REG_GPIO_DIR); | |
105 | curout = (curout & ~0xF) | 1; | |
106 | write_reg(curout, IVTV_REG_GPIO_OUT); | |
107 | /* We could use something else for smaller time */ | |
97989ada | 108 | schedule_timeout_interruptible(msecs_to_jiffies(1)); |
1a0adaf3 HV |
109 | curout |= 2; |
110 | write_reg(curout, IVTV_REG_GPIO_OUT); | |
111 | curdir &= ~0x80; | |
112 | write_reg(curdir, IVTV_REG_GPIO_DIR); | |
113 | } | |
114 | ||
0e614cd1 | 115 | /* Xceive tuner reset function */ |
d7cba043 | 116 | int ivtv_reset_tuner_gpio(void *dev, int component, int cmd, int value) |
0e614cd1 HV |
117 | { |
118 | struct i2c_algo_bit_data *algo = dev; | |
119 | struct ivtv *itv = algo->data; | |
136531da | 120 | u32 curout; |
0e614cd1 HV |
121 | |
122 | if (cmd != XC2028_TUNER_RESET) | |
123 | return 0; | |
124 | IVTV_DEBUG_INFO("Resetting tuner\n"); | |
125 | curout = read_reg(IVTV_REG_GPIO_OUT); | |
136531da | 126 | curout &= ~(1 << itv->card->xceive_pin); |
0e614cd1 HV |
127 | write_reg(curout, IVTV_REG_GPIO_OUT); |
128 | schedule_timeout_interruptible(msecs_to_jiffies(1)); | |
129 | ||
136531da | 130 | curout |= 1 << itv->card->xceive_pin; |
0e614cd1 HV |
131 | write_reg(curout, IVTV_REG_GPIO_OUT); |
132 | schedule_timeout_interruptible(msecs_to_jiffies(1)); | |
133 | return 0; | |
134 | } | |
1a0adaf3 | 135 | |
67ec09fd | 136 | static inline struct ivtv *sd_to_ivtv(struct v4l2_subdev *sd) |
1a0adaf3 | 137 | { |
67ec09fd | 138 | return container_of(sd, struct ivtv, sd_gpio); |
1a0adaf3 HV |
139 | } |
140 | ||
2fd78144 HV |
141 | static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) |
142 | { | |
143 | return &container_of(ctrl->handler, struct ivtv, hdl_gpio)->sd_gpio; | |
144 | } | |
1a0adaf3 | 145 | |
67ec09fd | 146 | static int subdev_s_clock_freq(struct v4l2_subdev *sd, u32 freq) |
1a0adaf3 | 147 | { |
67ec09fd | 148 | struct ivtv *itv = sd_to_ivtv(sd); |
1a0adaf3 HV |
149 | u16 mask, data; |
150 | ||
67ec09fd HV |
151 | mask = itv->card->gpio_audio_freq.mask; |
152 | switch (freq) { | |
153 | case 32000: | |
154 | data = itv->card->gpio_audio_freq.f32000; | |
155 | break; | |
156 | case 44100: | |
157 | data = itv->card->gpio_audio_freq.f44100; | |
158 | break; | |
159 | case 48000: | |
160 | default: | |
161 | data = itv->card->gpio_audio_freq.f48000; | |
1a0adaf3 | 162 | break; |
67ec09fd HV |
163 | } |
164 | if (mask) | |
165 | write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT); | |
166 | return 0; | |
167 | } | |
1a0adaf3 | 168 | |
67ec09fd HV |
169 | static int subdev_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) |
170 | { | |
171 | struct ivtv *itv = sd_to_ivtv(sd); | |
172 | u16 mask; | |
173 | ||
174 | mask = itv->card->gpio_audio_detect.mask; | |
175 | if (mask == 0 || (read_reg(IVTV_REG_GPIO_IN) & mask)) | |
dc47b778 HV |
176 | vt->rxsubchans = V4L2_TUNER_SUB_STEREO | |
177 | V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; | |
67ec09fd HV |
178 | else |
179 | vt->rxsubchans = V4L2_TUNER_SUB_MONO; | |
180 | return 0; | |
181 | } | |
1a0adaf3 | 182 | |
2f73c7c5 | 183 | static int subdev_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt) |
67ec09fd HV |
184 | { |
185 | struct ivtv *itv = sd_to_ivtv(sd); | |
186 | u16 mask, data; | |
1a0adaf3 | 187 | |
67ec09fd HV |
188 | mask = itv->card->gpio_audio_mode.mask; |
189 | switch (vt->audmode) { | |
190 | case V4L2_TUNER_MODE_LANG1: | |
191 | data = itv->card->gpio_audio_mode.lang1; | |
192 | break; | |
193 | case V4L2_TUNER_MODE_LANG2: | |
194 | data = itv->card->gpio_audio_mode.lang2; | |
195 | break; | |
196 | case V4L2_TUNER_MODE_MONO: | |
197 | data = itv->card->gpio_audio_mode.mono; | |
1a0adaf3 | 198 | break; |
67ec09fd HV |
199 | case V4L2_TUNER_MODE_STEREO: |
200 | case V4L2_TUNER_MODE_LANG1_LANG2: | |
201 | default: | |
202 | data = itv->card->gpio_audio_mode.stereo; | |
203 | break; | |
204 | } | |
205 | if (mask) | |
206 | write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT); | |
207 | return 0; | |
208 | } | |
209 | ||
210 | static int subdev_s_radio(struct v4l2_subdev *sd) | |
211 | { | |
212 | struct ivtv *itv = sd_to_ivtv(sd); | |
213 | u16 mask, data; | |
214 | ||
215 | mask = itv->card->gpio_audio_input.mask; | |
216 | data = itv->card->gpio_audio_input.radio; | |
217 | if (mask) | |
218 | write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT); | |
219 | return 0; | |
220 | } | |
1a0adaf3 | 221 | |
5325b427 HV |
222 | static int subdev_s_audio_routing(struct v4l2_subdev *sd, |
223 | u32 input, u32 output, u32 config) | |
67ec09fd HV |
224 | { |
225 | struct ivtv *itv = sd_to_ivtv(sd); | |
226 | u16 mask, data; | |
227 | ||
5325b427 | 228 | if (input > 2) |
67ec09fd HV |
229 | return -EINVAL; |
230 | mask = itv->card->gpio_audio_input.mask; | |
5325b427 | 231 | switch (input) { |
67ec09fd | 232 | case 0: |
1a0adaf3 HV |
233 | data = itv->card->gpio_audio_input.tuner; |
234 | break; | |
67ec09fd HV |
235 | case 1: |
236 | data = itv->card->gpio_audio_input.linein; | |
237 | break; | |
238 | case 2: | |
239 | default: | |
240 | data = itv->card->gpio_audio_input.radio; | |
1a0adaf3 | 241 | break; |
67ec09fd HV |
242 | } |
243 | if (mask) | |
244 | write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT); | |
245 | return 0; | |
246 | } | |
1a0adaf3 | 247 | |
2fd78144 | 248 | static int subdev_s_ctrl(struct v4l2_ctrl *ctrl) |
67ec09fd | 249 | { |
2fd78144 | 250 | struct v4l2_subdev *sd = to_sd(ctrl); |
67ec09fd HV |
251 | struct ivtv *itv = sd_to_ivtv(sd); |
252 | u16 mask, data; | |
1a0adaf3 | 253 | |
2fd78144 HV |
254 | switch (ctrl->id) { |
255 | case V4L2_CID_AUDIO_MUTE: | |
256 | mask = itv->card->gpio_audio_mute.mask; | |
257 | data = ctrl->val ? itv->card->gpio_audio_mute.mute : 0; | |
258 | if (mask) | |
259 | write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | | |
260 | (data & mask), IVTV_REG_GPIO_OUT); | |
261 | return 0; | |
262 | } | |
263 | return -EINVAL; | |
67ec09fd HV |
264 | } |
265 | ||
67ec09fd HV |
266 | |
267 | static int subdev_log_status(struct v4l2_subdev *sd) | |
268 | { | |
269 | struct ivtv *itv = sd_to_ivtv(sd); | |
1a0adaf3 | 270 | |
67ec09fd | 271 | IVTV_INFO("GPIO status: DIR=0x%04x OUT=0x%04x IN=0x%04x\n", |
1a0adaf3 HV |
272 | read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT), |
273 | read_reg(IVTV_REG_GPIO_IN)); | |
2fd78144 | 274 | v4l2_ctrl_handler_log_status(&itv->hdl_gpio, sd->name); |
67ec09fd HV |
275 | return 0; |
276 | } | |
1a0adaf3 | 277 | |
5325b427 HV |
278 | static int subdev_s_video_routing(struct v4l2_subdev *sd, |
279 | u32 input, u32 output, u32 config) | |
67ec09fd HV |
280 | { |
281 | struct ivtv *itv = sd_to_ivtv(sd); | |
282 | u16 mask, data; | |
1a0adaf3 | 283 | |
5325b427 | 284 | if (input > 2) /* 0:Tuner 1:Composite 2:S-Video */ |
1a0adaf3 | 285 | return -EINVAL; |
67ec09fd | 286 | mask = itv->card->gpio_video_input.mask; |
5325b427 | 287 | if (input == 0) |
67ec09fd | 288 | data = itv->card->gpio_video_input.tuner; |
5325b427 | 289 | else if (input == 1) |
67ec09fd HV |
290 | data = itv->card->gpio_video_input.composite; |
291 | else | |
292 | data = itv->card->gpio_video_input.svideo; | |
1a0adaf3 HV |
293 | if (mask) |
294 | write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT); | |
295 | return 0; | |
296 | } | |
67ec09fd | 297 | |
2fd78144 HV |
298 | static const struct v4l2_ctrl_ops gpio_ctrl_ops = { |
299 | .s_ctrl = subdev_s_ctrl, | |
300 | }; | |
301 | ||
67ec09fd HV |
302 | static const struct v4l2_subdev_core_ops subdev_core_ops = { |
303 | .log_status = subdev_log_status, | |
67ec09fd HV |
304 | }; |
305 | ||
306 | static const struct v4l2_subdev_tuner_ops subdev_tuner_ops = { | |
67ec09fd HV |
307 | .s_radio = subdev_s_radio, |
308 | .g_tuner = subdev_g_tuner, | |
309 | .s_tuner = subdev_s_tuner, | |
310 | }; | |
311 | ||
312 | static const struct v4l2_subdev_audio_ops subdev_audio_ops = { | |
313 | .s_clock_freq = subdev_s_clock_freq, | |
314 | .s_routing = subdev_s_audio_routing, | |
315 | }; | |
316 | ||
317 | static const struct v4l2_subdev_video_ops subdev_video_ops = { | |
318 | .s_routing = subdev_s_video_routing, | |
319 | }; | |
320 | ||
321 | static const struct v4l2_subdev_ops subdev_ops = { | |
322 | .core = &subdev_core_ops, | |
323 | .tuner = &subdev_tuner_ops, | |
324 | .audio = &subdev_audio_ops, | |
325 | .video = &subdev_video_ops, | |
326 | }; | |
327 | ||
328 | int ivtv_gpio_init(struct ivtv *itv) | |
329 | { | |
330 | u16 pin = 0; | |
331 | ||
332 | if (itv->card->xceive_pin) | |
333 | pin = 1 << itv->card->xceive_pin; | |
334 | ||
335 | if ((itv->card->gpio_init.direction | pin) == 0) | |
336 | return 0; | |
337 | ||
338 | IVTV_DEBUG_INFO("GPIO initial dir: %08x out: %08x\n", | |
339 | read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT)); | |
340 | ||
341 | /* init output data then direction */ | |
342 | write_reg(itv->card->gpio_init.initial_value | pin, IVTV_REG_GPIO_OUT); | |
343 | write_reg(itv->card->gpio_init.direction | pin, IVTV_REG_GPIO_DIR); | |
344 | v4l2_subdev_init(&itv->sd_gpio, &subdev_ops); | |
8ac05ae3 | 345 | snprintf(itv->sd_gpio.name, sizeof(itv->sd_gpio.name), "%s-gpio", itv->v4l2_dev.name); |
67ec09fd | 346 | itv->sd_gpio.grp_id = IVTV_HW_GPIO; |
2fd78144 HV |
347 | v4l2_ctrl_handler_init(&itv->hdl_gpio, 1); |
348 | v4l2_ctrl_new_std(&itv->hdl_gpio, &gpio_ctrl_ops, | |
349 | V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); | |
350 | if (itv->hdl_gpio.error) | |
351 | return itv->hdl_gpio.error; | |
352 | itv->sd_gpio.ctrl_handler = &itv->hdl_gpio; | |
353 | v4l2_ctrl_handler_setup(&itv->hdl_gpio); | |
8ac05ae3 | 354 | return v4l2_device_register_subdev(&itv->v4l2_dev, &itv->sd_gpio); |
67ec09fd | 355 | } |