1 /* 2 * Driver for DVBSky USB2.0 receiver 3 * 4 * Copyright (C) 2013 Max nibble <nibble.max@gmail.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 */ 20 21 #include "dvb_usb.h" 22 #include "m88ds3103.h" 23 #include "m88ts2022.h" 24 25 #define DVBSKY_MSG_DELAY 0/*2000*/ 26 #define DVBSKY_BUF_LEN 64 27 28 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 29 30 struct dvbsky_state { 31 struct mutex stream_mutex; 32 u8 ibuf[DVBSKY_BUF_LEN]; 33 u8 obuf[DVBSKY_BUF_LEN]; 34 u8 last_lock; 35 struct i2c_client *i2c_client_tuner; 36 37 /* fe hook functions*/ 38 int (*fe_set_voltage)(struct dvb_frontend *fe, 39 fe_sec_voltage_t voltage); 40 int (*fe_read_status)(struct dvb_frontend *fe, 41 fe_status_t *status); 42 }; 43 44 static int dvbsky_usb_generic_rw(struct dvb_usb_device *d, 45 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) 46 { 47 int ret; 48 struct dvbsky_state *state = d_to_priv(d); 49 50 mutex_lock(&d->usb_mutex); 51 if (wlen != 0) 52 memcpy(state->obuf, wbuf, wlen); 53 54 ret = dvb_usbv2_generic_rw_locked(d, state->obuf, wlen, 55 state->ibuf, rlen); 56 57 if (!ret && (rlen != 0)) 58 memcpy(rbuf, state->ibuf, rlen); 59 60 mutex_unlock(&d->usb_mutex); 61 return ret; 62 } 63 64 static int dvbsky_stream_ctrl(struct dvb_usb_device *d, u8 onoff) 65 { 66 struct dvbsky_state *state = d_to_priv(d); 67 int ret; 68 u8 obuf_pre[3] = { 0x37, 0, 0 }; 69 u8 obuf_post[3] = { 0x36, 3, 0 }; 70 71 mutex_lock(&state->stream_mutex); 72 ret = dvbsky_usb_generic_rw(d, obuf_pre, 3, NULL, 0); 73 if (!ret && onoff) { 74 msleep(20); 75 ret = dvbsky_usb_generic_rw(d, obuf_post, 3, NULL, 0); 76 } 77 mutex_unlock(&state->stream_mutex); 78 return ret; 79 } 80 81 static int dvbsky_streaming_ctrl(struct dvb_frontend *fe, int onoff) 82 { 83 struct dvb_usb_device *d = fe_to_d(fe); 84 85 return dvbsky_stream_ctrl(d, (onoff == 0) ? 0 : 1); 86 } 87 88 /* GPIO */ 89 static int dvbsky_gpio_ctrl(struct dvb_usb_device *d, u8 gport, u8 value) 90 { 91 int ret; 92 u8 obuf[3], ibuf[2]; 93 94 obuf[0] = 0x0e; 95 obuf[1] = gport; 96 obuf[2] = value; 97 ret = dvbsky_usb_generic_rw(d, obuf, 3, ibuf, 1); 98 if (ret) 99 dev_err(&d->udev->dev, "%s: %s() failed=%d\n", 100 KBUILD_MODNAME, __func__, ret); 101 return ret; 102 } 103 104 /* I2C */ 105 static int dvbsky_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], 106 int num) 107 { 108 struct dvb_usb_device *d = i2c_get_adapdata(adap); 109 int ret = 0; 110 u8 ibuf[64], obuf[64]; 111 112 if (mutex_lock_interruptible(&d->i2c_mutex) < 0) 113 return -EAGAIN; 114 115 if (num > 2) { 116 dev_err(&d->udev->dev, 117 "dvbsky_usb: too many i2c messages[%d] than 2.", num); 118 ret = -EOPNOTSUPP; 119 goto i2c_error; 120 } 121 122 if (num == 1) { 123 if (msg[0].len > 60) { 124 dev_err(&d->udev->dev, 125 "dvbsky_usb: too many i2c bytes[%d] than 60.", 126 msg[0].len); 127 ret = -EOPNOTSUPP; 128 goto i2c_error; 129 } 130 if (msg[0].flags & I2C_M_RD) { 131 /* single read */ 132 obuf[0] = 0x09; 133 obuf[1] = 0; 134 obuf[2] = msg[0].len; 135 obuf[3] = msg[0].addr; 136 ret = dvbsky_usb_generic_rw(d, obuf, 4, 137 ibuf, msg[0].len + 1); 138 if (ret) 139 dev_err(&d->udev->dev, "%s: %s() failed=%d\n", 140 KBUILD_MODNAME, __func__, ret); 141 if (!ret) 142 memcpy(msg[0].buf, &ibuf[1], msg[0].len); 143 } else { 144 /* write */ 145 obuf[0] = 0x08; 146 obuf[1] = msg[0].addr; 147 obuf[2] = msg[0].len; 148 memcpy(&obuf[3], msg[0].buf, msg[0].len); 149 ret = dvbsky_usb_generic_rw(d, obuf, 150 msg[0].len + 3, ibuf, 1); 151 if (ret) 152 dev_err(&d->udev->dev, "%s: %s() failed=%d\n", 153 KBUILD_MODNAME, __func__, ret); 154 } 155 } else { 156 if ((msg[0].len > 60) || (msg[1].len > 60)) { 157 dev_err(&d->udev->dev, 158 "dvbsky_usb: too many i2c bytes[w-%d][r-%d] than 60.", 159 msg[0].len, msg[1].len); 160 ret = -EOPNOTSUPP; 161 goto i2c_error; 162 } 163 /* write then read */ 164 obuf[0] = 0x09; 165 obuf[1] = msg[0].len; 166 obuf[2] = msg[1].len; 167 obuf[3] = msg[0].addr; 168 memcpy(&obuf[4], msg[0].buf, msg[0].len); 169 ret = dvbsky_usb_generic_rw(d, obuf, 170 msg[0].len + 4, ibuf, msg[1].len + 1); 171 if (ret) 172 dev_err(&d->udev->dev, "%s: %s() failed=%d\n", 173 KBUILD_MODNAME, __func__, ret); 174 175 if (!ret) 176 memcpy(msg[1].buf, &ibuf[1], msg[1].len); 177 } 178 i2c_error: 179 mutex_unlock(&d->i2c_mutex); 180 return (ret) ? ret : num; 181 } 182 183 static u32 dvbsky_i2c_func(struct i2c_adapter *adapter) 184 { 185 return I2C_FUNC_I2C; 186 } 187 188 static struct i2c_algorithm dvbsky_i2c_algo = { 189 .master_xfer = dvbsky_i2c_xfer, 190 .functionality = dvbsky_i2c_func, 191 }; 192 193 #if IS_ENABLED(CONFIG_RC_CORE) 194 static int dvbsky_rc_query(struct dvb_usb_device *d) 195 { 196 u32 code = 0xffff, scancode; 197 u8 rc5_command, rc5_system; 198 u8 obuf[2], ibuf[2], toggle; 199 int ret; 200 201 obuf[0] = 0x10; 202 ret = dvbsky_usb_generic_rw(d, obuf, 1, ibuf, 2); 203 if (ret) 204 dev_err(&d->udev->dev, "%s: %s() failed=%d\n", 205 KBUILD_MODNAME, __func__, ret); 206 if (ret == 0) 207 code = (ibuf[0] << 8) | ibuf[1]; 208 if (code != 0xffff) { 209 dev_dbg(&d->udev->dev, "rc code: %x\n", code); 210 rc5_command = code & 0x3F; 211 rc5_system = (code & 0x7C0) >> 6; 212 toggle = (code & 0x800) ? 1 : 0; 213 scancode = rc5_system << 8 | rc5_command; 214 rc_keydown(d->rc_dev, RC_TYPE_RC5, scancode, toggle); 215 } 216 return 0; 217 } 218 219 static int dvbsky_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc) 220 { 221 rc->allowed_protos = RC_BIT_RC5; 222 rc->query = dvbsky_rc_query; 223 rc->interval = 300; 224 return 0; 225 } 226 #else 227 #define dvbsky_get_rc_config NULL 228 #endif 229 230 static int dvbsky_usb_set_voltage(struct dvb_frontend *fe, 231 fe_sec_voltage_t voltage) 232 { 233 struct dvb_usb_device *d = fe_to_d(fe); 234 struct dvbsky_state *state = d_to_priv(d); 235 u8 value; 236 237 if (voltage == SEC_VOLTAGE_OFF) 238 value = 0; 239 else 240 value = 1; 241 dvbsky_gpio_ctrl(d, 0x80, value); 242 243 return state->fe_set_voltage(fe, voltage); 244 } 245 246 static int dvbsky_read_mac_addr(struct dvb_usb_adapter *adap, u8 mac[6]) 247 { 248 struct dvb_usb_device *d = adap_to_d(adap); 249 u8 obuf[] = { 0x1e, 0x00 }; 250 u8 ibuf[6] = { 0 }; 251 struct i2c_msg msg[] = { 252 { 253 .addr = 0x51, 254 .flags = 0, 255 .buf = obuf, 256 .len = 2, 257 }, { 258 .addr = 0x51, 259 .flags = I2C_M_RD, 260 .buf = ibuf, 261 .len = 6, 262 } 263 }; 264 265 if (i2c_transfer(&d->i2c_adap, msg, 2) == 2) 266 memcpy(mac, ibuf, 6); 267 268 dev_info(&d->udev->dev, "dvbsky_usb MAC address=%pM\n", mac); 269 270 return 0; 271 } 272 273 static int dvbsky_usb_read_status(struct dvb_frontend *fe, fe_status_t *status) 274 { 275 struct dvb_usb_device *d = fe_to_d(fe); 276 struct dvbsky_state *state = d_to_priv(d); 277 int ret; 278 279 ret = state->fe_read_status(fe, status); 280 281 /* it need resync slave fifo when signal change from unlock to lock.*/ 282 if ((*status & FE_HAS_LOCK) && (!state->last_lock)) 283 dvbsky_stream_ctrl(d, 1); 284 285 state->last_lock = (*status & FE_HAS_LOCK) ? 1 : 0; 286 return ret; 287 } 288 289 static const struct m88ds3103_config dvbsky_s960_m88ds3103_config = { 290 .i2c_addr = 0x68, 291 .clock = 27000000, 292 .i2c_wr_max = 33, 293 .clock_out = 0, 294 .ts_mode = M88DS3103_TS_CI, 295 .ts_clk = 16000, 296 .ts_clk_pol = 0, 297 .agc = 0x99, 298 .lnb_hv_pol = 1, 299 .lnb_en_pol = 1, 300 }; 301 302 static int dvbsky_s960_attach(struct dvb_usb_adapter *adap) 303 { 304 struct dvbsky_state *state = adap_to_priv(adap); 305 struct dvb_usb_device *d = adap_to_d(adap); 306 int ret = 0; 307 /* demod I2C adapter */ 308 struct i2c_adapter *i2c_adapter; 309 struct i2c_client *client; 310 struct i2c_board_info info; 311 struct m88ts2022_config m88ts2022_config = { 312 .clock = 27000000, 313 }; 314 memset(&info, 0, sizeof(struct i2c_board_info)); 315 316 /* attach demod */ 317 adap->fe[0] = dvb_attach(m88ds3103_attach, 318 &dvbsky_s960_m88ds3103_config, 319 &d->i2c_adap, 320 &i2c_adapter); 321 if (!adap->fe[0]) { 322 dev_err(&d->udev->dev, "dvbsky_s960_attach fail.\n"); 323 ret = -ENODEV; 324 goto fail_attach; 325 } 326 327 /* attach tuner */ 328 m88ts2022_config.fe = adap->fe[0]; 329 strlcpy(info.type, "m88ts2022", I2C_NAME_SIZE); 330 info.addr = 0x60; 331 info.platform_data = &m88ts2022_config; 332 request_module("m88ts2022"); 333 client = i2c_new_device(i2c_adapter, &info); 334 if (client == NULL || client->dev.driver == NULL) { 335 dvb_frontend_detach(adap->fe[0]); 336 ret = -ENODEV; 337 goto fail_attach; 338 } 339 340 if (!try_module_get(client->dev.driver->owner)) { 341 i2c_unregister_device(client); 342 dvb_frontend_detach(adap->fe[0]); 343 ret = -ENODEV; 344 goto fail_attach; 345 } 346 347 /* delegate signal strength measurement to tuner */ 348 adap->fe[0]->ops.read_signal_strength = 349 adap->fe[0]->ops.tuner_ops.get_rf_strength; 350 351 /* hook fe: need to resync the slave fifo when signal locks. */ 352 state->fe_read_status = adap->fe[0]->ops.read_status; 353 adap->fe[0]->ops.read_status = dvbsky_usb_read_status; 354 355 /* hook fe: LNB off/on is control by Cypress usb chip. */ 356 state->fe_set_voltage = adap->fe[0]->ops.set_voltage; 357 adap->fe[0]->ops.set_voltage = dvbsky_usb_set_voltage; 358 359 state->i2c_client_tuner = client; 360 361 fail_attach: 362 return ret; 363 } 364 365 static int dvbsky_identify_state(struct dvb_usb_device *d, const char **name) 366 { 367 dvbsky_gpio_ctrl(d, 0x04, 1); 368 msleep(20); 369 dvbsky_gpio_ctrl(d, 0x83, 0); 370 dvbsky_gpio_ctrl(d, 0xc0, 1); 371 msleep(100); 372 dvbsky_gpio_ctrl(d, 0x83, 1); 373 dvbsky_gpio_ctrl(d, 0xc0, 0); 374 msleep(50); 375 376 return WARM; 377 } 378 379 static int dvbsky_init(struct dvb_usb_device *d) 380 { 381 struct dvbsky_state *state = d_to_priv(d); 382 383 /* use default interface */ 384 /* 385 ret = usb_set_interface(d->udev, 0, 0); 386 if (ret) 387 return ret; 388 */ 389 mutex_init(&state->stream_mutex); 390 391 state->last_lock = 0; 392 393 return 0; 394 } 395 396 static void dvbsky_exit(struct dvb_usb_device *d) 397 { 398 struct dvbsky_state *state = d_to_priv(d); 399 struct i2c_client *client; 400 401 client = state->i2c_client_tuner; 402 /* remove I2C tuner */ 403 if (client) { 404 module_put(client->dev.driver->owner); 405 i2c_unregister_device(client); 406 } 407 } 408 409 /* DVB USB Driver stuff */ 410 static struct dvb_usb_device_properties dvbsky_s960_props = { 411 .driver_name = KBUILD_MODNAME, 412 .owner = THIS_MODULE, 413 .adapter_nr = adapter_nr, 414 .size_of_priv = sizeof(struct dvbsky_state), 415 416 .generic_bulk_ctrl_endpoint = 0x01, 417 .generic_bulk_ctrl_endpoint_response = 0x81, 418 .generic_bulk_ctrl_delay = DVBSKY_MSG_DELAY, 419 420 .i2c_algo = &dvbsky_i2c_algo, 421 .frontend_attach = dvbsky_s960_attach, 422 .init = dvbsky_init, 423 .get_rc_config = dvbsky_get_rc_config, 424 .streaming_ctrl = dvbsky_streaming_ctrl, 425 .identify_state = dvbsky_identify_state, 426 .exit = dvbsky_exit, 427 .read_mac_address = dvbsky_read_mac_addr, 428 429 .num_adapters = 1, 430 .adapter = { 431 { 432 .stream = DVB_USB_STREAM_BULK(0x82, 8, 4096), 433 } 434 } 435 }; 436 437 static const struct usb_device_id dvbsky_id_table[] = { 438 { DVB_USB_DEVICE(0x0572, 0x6831, 439 &dvbsky_s960_props, "DVBSky S960/S860", RC_MAP_DVBSKY) }, 440 { } 441 }; 442 MODULE_DEVICE_TABLE(usb, dvbsky_id_table); 443 444 static struct usb_driver dvbsky_usb_driver = { 445 .name = KBUILD_MODNAME, 446 .id_table = dvbsky_id_table, 447 .probe = dvb_usbv2_probe, 448 .disconnect = dvb_usbv2_disconnect, 449 .suspend = dvb_usbv2_suspend, 450 .resume = dvb_usbv2_resume, 451 .reset_resume = dvb_usbv2_reset_resume, 452 .no_dynamic_id = 1, 453 .soft_unbind = 1, 454 }; 455 456 module_usb_driver(dvbsky_usb_driver); 457 458 MODULE_AUTHOR("Max nibble <nibble.max@gmail.com>"); 459 MODULE_DESCRIPTION("Driver for DVBSky USB"); 460 MODULE_LICENSE("GPL"); 461