1 /* DVB USB compliant linux driver for Nebula Electronics uDigiTV DVB-T USB2.0 2 * receiver 3 * 4 * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@posteo.de) 5 * 6 * partly based on the SDK published by Nebula Electronics 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License as published by the Free 10 * Software Foundation, version 2. 11 * 12 * see Documentation/media/dvb-drivers/dvb-usb.rst for more information 13 */ 14 #include "digitv.h" 15 16 #include "mt352.h" 17 #include "nxt6000.h" 18 19 /* debug */ 20 static int dvb_usb_digitv_debug; 21 module_param_named(debug,dvb_usb_digitv_debug, int, 0644); 22 MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS); 23 24 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 25 26 #define deb_rc(args...) dprintk(dvb_usb_digitv_debug,0x01,args) 27 28 static int digitv_ctrl_msg(struct dvb_usb_device *d, 29 u8 cmd, u8 vv, u8 *wbuf, int wlen, u8 *rbuf, int rlen) 30 { 31 struct digitv_state *st = d->priv; 32 int ret, wo; 33 34 wo = (rbuf == NULL || rlen == 0); /* write-only */ 35 36 if (wlen > 4 || rlen > 4) 37 return -EIO; 38 39 memset(st->sndbuf, 0, 7); 40 memset(st->rcvbuf, 0, 7); 41 42 st->sndbuf[0] = cmd; 43 st->sndbuf[1] = vv; 44 st->sndbuf[2] = wo ? wlen : rlen; 45 46 if (wo) { 47 memcpy(&st->sndbuf[3], wbuf, wlen); 48 ret = dvb_usb_generic_write(d, st->sndbuf, 7); 49 } else { 50 ret = dvb_usb_generic_rw(d, st->sndbuf, 7, st->rcvbuf, 7, 10); 51 memcpy(rbuf, &st->rcvbuf[3], rlen); 52 } 53 return ret; 54 } 55 56 /* I2C */ 57 static int digitv_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num) 58 { 59 struct dvb_usb_device *d = i2c_get_adapdata(adap); 60 int i; 61 62 if (mutex_lock_interruptible(&d->i2c_mutex) < 0) 63 return -EAGAIN; 64 65 if (num > 2) 66 warn("more than 2 i2c messages at a time is not handled yet. TODO."); 67 68 for (i = 0; i < num; i++) { 69 /* write/read request */ 70 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { 71 if (digitv_ctrl_msg(d, USB_READ_COFDM, msg[i].buf[0], NULL, 0, 72 msg[i+1].buf,msg[i+1].len) < 0) 73 break; 74 i++; 75 } else 76 if (digitv_ctrl_msg(d,USB_WRITE_COFDM, msg[i].buf[0], 77 &msg[i].buf[1],msg[i].len-1,NULL,0) < 0) 78 break; 79 } 80 81 mutex_unlock(&d->i2c_mutex); 82 return i; 83 } 84 85 static u32 digitv_i2c_func(struct i2c_adapter *adapter) 86 { 87 return I2C_FUNC_I2C; 88 } 89 90 static struct i2c_algorithm digitv_i2c_algo = { 91 .master_xfer = digitv_i2c_xfer, 92 .functionality = digitv_i2c_func, 93 }; 94 95 /* Callbacks for DVB USB */ 96 static int digitv_identify_state (struct usb_device *udev, struct 97 dvb_usb_device_properties *props, struct dvb_usb_device_description **desc, 98 int *cold) 99 { 100 *cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0; 101 return 0; 102 } 103 104 static int digitv_mt352_demod_init(struct dvb_frontend *fe) 105 { 106 static u8 reset_buf[] = { 0x89, 0x38, 0x8a, 0x2d, 0x50, 0x80 }; 107 static u8 init_buf[] = { 0x68, 0xa0, 0x8e, 0x40, 0x53, 0x50, 108 0x67, 0x20, 0x7d, 0x01, 0x7c, 0x00, 0x7a, 0x00, 109 0x79, 0x20, 0x57, 0x05, 0x56, 0x31, 0x88, 0x0f, 110 0x75, 0x32 }; 111 int i; 112 113 for (i = 0; i < ARRAY_SIZE(reset_buf); i += 2) 114 mt352_write(fe, &reset_buf[i], 2); 115 116 msleep(1); 117 118 for (i = 0; i < ARRAY_SIZE(init_buf); i += 2) 119 mt352_write(fe, &init_buf[i], 2); 120 121 return 0; 122 } 123 124 static struct mt352_config digitv_mt352_config = { 125 .demod_init = digitv_mt352_demod_init, 126 }; 127 128 static int digitv_nxt6000_tuner_set_params(struct dvb_frontend *fe) 129 { 130 struct dvb_usb_adapter *adap = fe->dvb->priv; 131 u8 b[5]; 132 133 fe->ops.tuner_ops.calc_regs(fe, b, sizeof(b)); 134 if (fe->ops.i2c_gate_ctrl) 135 fe->ops.i2c_gate_ctrl(fe, 1); 136 return digitv_ctrl_msg(adap->dev, USB_WRITE_TUNER, 0, &b[1], 4, NULL, 0); 137 } 138 139 static struct nxt6000_config digitv_nxt6000_config = { 140 .clock_inversion = 1, 141 }; 142 143 static int digitv_frontend_attach(struct dvb_usb_adapter *adap) 144 { 145 struct digitv_state *st = adap->dev->priv; 146 147 adap->fe_adap[0].fe = dvb_attach(mt352_attach, &digitv_mt352_config, 148 &adap->dev->i2c_adap); 149 if ((adap->fe_adap[0].fe) != NULL) { 150 st->is_nxt6000 = 0; 151 return 0; 152 } 153 adap->fe_adap[0].fe = dvb_attach(nxt6000_attach, 154 &digitv_nxt6000_config, 155 &adap->dev->i2c_adap); 156 if ((adap->fe_adap[0].fe) != NULL) { 157 st->is_nxt6000 = 1; 158 return 0; 159 } 160 return -EIO; 161 } 162 163 static int digitv_tuner_attach(struct dvb_usb_adapter *adap) 164 { 165 struct digitv_state *st = adap->dev->priv; 166 167 if (!dvb_attach(dvb_pll_attach, adap->fe_adap[0].fe, 0x60, NULL, DVB_PLL_TDED4)) 168 return -ENODEV; 169 170 if (st->is_nxt6000) 171 adap->fe_adap[0].fe->ops.tuner_ops.set_params = digitv_nxt6000_tuner_set_params; 172 173 return 0; 174 } 175 176 static struct rc_map_table rc_map_digitv_table[] = { 177 { 0x5f55, KEY_0 }, 178 { 0x6f55, KEY_1 }, 179 { 0x9f55, KEY_2 }, 180 { 0xaf55, KEY_3 }, 181 { 0x5f56, KEY_4 }, 182 { 0x6f56, KEY_5 }, 183 { 0x9f56, KEY_6 }, 184 { 0xaf56, KEY_7 }, 185 { 0x5f59, KEY_8 }, 186 { 0x6f59, KEY_9 }, 187 { 0x9f59, KEY_TV }, 188 { 0xaf59, KEY_AUX }, 189 { 0x5f5a, KEY_DVD }, 190 { 0x6f5a, KEY_POWER }, 191 { 0x9f5a, KEY_CAMERA }, /* labelled 'Picture' */ 192 { 0xaf5a, KEY_AUDIO }, 193 { 0x5f65, KEY_INFO }, 194 { 0x6f65, KEY_F13 }, /* 16:9 */ 195 { 0x9f65, KEY_F14 }, /* 14:9 */ 196 { 0xaf65, KEY_EPG }, 197 { 0x5f66, KEY_EXIT }, 198 { 0x6f66, KEY_MENU }, 199 { 0x9f66, KEY_UP }, 200 { 0xaf66, KEY_DOWN }, 201 { 0x5f69, KEY_LEFT }, 202 { 0x6f69, KEY_RIGHT }, 203 { 0x9f69, KEY_ENTER }, 204 { 0xaf69, KEY_CHANNELUP }, 205 { 0x5f6a, KEY_CHANNELDOWN }, 206 { 0x6f6a, KEY_VOLUMEUP }, 207 { 0x9f6a, KEY_VOLUMEDOWN }, 208 { 0xaf6a, KEY_RED }, 209 { 0x5f95, KEY_GREEN }, 210 { 0x6f95, KEY_YELLOW }, 211 { 0x9f95, KEY_BLUE }, 212 { 0xaf95, KEY_SUBTITLE }, 213 { 0x5f96, KEY_F15 }, /* AD */ 214 { 0x6f96, KEY_TEXT }, 215 { 0x9f96, KEY_MUTE }, 216 { 0xaf96, KEY_REWIND }, 217 { 0x5f99, KEY_STOP }, 218 { 0x6f99, KEY_PLAY }, 219 { 0x9f99, KEY_FASTFORWARD }, 220 { 0xaf99, KEY_F16 }, /* chapter */ 221 { 0x5f9a, KEY_PAUSE }, 222 { 0x6f9a, KEY_PLAY }, 223 { 0x9f9a, KEY_RECORD }, 224 { 0xaf9a, KEY_F17 }, /* picture in picture */ 225 { 0x5fa5, KEY_KPPLUS }, /* zoom in */ 226 { 0x6fa5, KEY_KPMINUS }, /* zoom out */ 227 { 0x9fa5, KEY_F18 }, /* capture */ 228 { 0xafa5, KEY_F19 }, /* web */ 229 { 0x5fa6, KEY_EMAIL }, 230 { 0x6fa6, KEY_PHONE }, 231 { 0x9fa6, KEY_PC }, 232 }; 233 234 static int digitv_rc_query(struct dvb_usb_device *d, u32 *event, int *state) 235 { 236 int i; 237 u8 key[5]; 238 u8 b[4] = { 0 }; 239 240 *event = 0; 241 *state = REMOTE_NO_KEY_PRESSED; 242 243 digitv_ctrl_msg(d,USB_READ_REMOTE,0,NULL,0,&key[1],4); 244 245 /* Tell the device we've read the remote. Not sure how necessary 246 this is, but the Nebula SDK does it. */ 247 digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0); 248 249 /* if something is inside the buffer, simulate key press */ 250 if (key[1] != 0) 251 { 252 for (i = 0; i < d->props.rc.legacy.rc_map_size; i++) { 253 if (rc5_custom(&d->props.rc.legacy.rc_map_table[i]) == key[1] && 254 rc5_data(&d->props.rc.legacy.rc_map_table[i]) == key[2]) { 255 *event = d->props.rc.legacy.rc_map_table[i].keycode; 256 *state = REMOTE_KEY_PRESSED; 257 return 0; 258 } 259 } 260 } 261 262 if (key[0] != 0) 263 deb_rc("key: %*ph\n", 5, key); 264 return 0; 265 } 266 267 /* DVB USB Driver stuff */ 268 static struct dvb_usb_device_properties digitv_properties; 269 270 static int digitv_probe(struct usb_interface *intf, 271 const struct usb_device_id *id) 272 { 273 struct dvb_usb_device *d; 274 int ret = dvb_usb_device_init(intf, &digitv_properties, THIS_MODULE, &d, 275 adapter_nr); 276 if (ret == 0) { 277 u8 b[4] = { 0 }; 278 279 if (d != NULL) { /* do that only when the firmware is loaded */ 280 b[0] = 1; 281 digitv_ctrl_msg(d,USB_WRITE_REMOTE_TYPE,0,b,4,NULL,0); 282 283 b[0] = 0; 284 digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0); 285 } 286 } 287 return ret; 288 } 289 290 static struct usb_device_id digitv_table [] = { 291 { USB_DEVICE(USB_VID_ANCHOR, USB_PID_NEBULA_DIGITV) }, 292 { } /* Terminating entry */ 293 }; 294 MODULE_DEVICE_TABLE (usb, digitv_table); 295 296 static struct dvb_usb_device_properties digitv_properties = { 297 .caps = DVB_USB_IS_AN_I2C_ADAPTER, 298 299 .usb_ctrl = CYPRESS_FX2, 300 .firmware = "dvb-usb-digitv-02.fw", 301 302 .size_of_priv = sizeof(struct digitv_state), 303 304 .num_adapters = 1, 305 .adapter = { 306 { 307 .num_frontends = 1, 308 .fe = {{ 309 .frontend_attach = digitv_frontend_attach, 310 .tuner_attach = digitv_tuner_attach, 311 312 /* parameter for the MPEG2-data transfer */ 313 .stream = { 314 .type = USB_BULK, 315 .count = 7, 316 .endpoint = 0x02, 317 .u = { 318 .bulk = { 319 .buffersize = 4096, 320 } 321 } 322 }, 323 }}, 324 } 325 }, 326 .identify_state = digitv_identify_state, 327 328 .rc.legacy = { 329 .rc_interval = 1000, 330 .rc_map_table = rc_map_digitv_table, 331 .rc_map_size = ARRAY_SIZE(rc_map_digitv_table), 332 .rc_query = digitv_rc_query, 333 }, 334 335 .i2c_algo = &digitv_i2c_algo, 336 337 .generic_bulk_ctrl_endpoint = 0x01, 338 339 .num_device_descs = 1, 340 .devices = { 341 { "Nebula Electronics uDigiTV DVB-T USB2.0)", 342 { &digitv_table[0], NULL }, 343 { NULL }, 344 }, 345 { NULL }, 346 } 347 }; 348 349 static struct usb_driver digitv_driver = { 350 .name = "dvb_usb_digitv", 351 .probe = digitv_probe, 352 .disconnect = dvb_usb_device_exit, 353 .id_table = digitv_table, 354 }; 355 356 module_usb_driver(digitv_driver); 357 358 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>"); 359 MODULE_DESCRIPTION("Driver for Nebula Electronics uDigiTV DVB-T USB2.0"); 360 MODULE_VERSION("1.0-alpha"); 361 MODULE_LICENSE("GPL"); 362