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