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@desy.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/dvb/README.dvb-usb for more information 13 */ 14#include "digitv.h" 15 16#include "mt352.h" 17#include "nxt6000.h" 18 19/* debug */ 20static int dvb_usb_digitv_debug; 21module_param_named(debug,dvb_usb_digitv_debug, int, 0644); 22MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS); 23 24DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 25 26#define deb_rc(args...) dprintk(dvb_usb_digitv_debug,0x01,args) 27 28static int digitv_ctrl_msg(struct dvb_usb_device *d, 29 u8 cmd, u8 vv, u8 *wbuf, int wlen, u8 *rbuf, int rlen) 30{ 31 int wo = (rbuf == NULL || rlen == 0); /* write-only */ 32 u8 sndbuf[7],rcvbuf[7]; 33 memset(sndbuf,0,7); memset(rcvbuf,0,7); 34 35 sndbuf[0] = cmd; 36 sndbuf[1] = vv; 37 sndbuf[2] = wo ? wlen : rlen; 38 39 if (wo) { 40 memcpy(&sndbuf[3],wbuf,wlen); 41 dvb_usb_generic_write(d,sndbuf,7); 42 } else { 43 dvb_usb_generic_rw(d,sndbuf,7,rcvbuf,7,10); 44 memcpy(rbuf,&rcvbuf[3],rlen); 45 } 46 return 0; 47} 48 49/* I2C */ 50static int digitv_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num) 51{ 52 struct dvb_usb_device *d = i2c_get_adapdata(adap); 53 int i; 54 55 if (mutex_lock_interruptible(&d->i2c_mutex) < 0) 56 return -EAGAIN; 57 58 if (num > 2) 59 warn("more than 2 i2c messages at a time is not handled yet. TODO."); 60 61 for (i = 0; i < num; i++) { 62 /* write/read request */ 63 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { 64 if (digitv_ctrl_msg(d, USB_READ_COFDM, msg[i].buf[0], NULL, 0, 65 msg[i+1].buf,msg[i+1].len) < 0) 66 break; 67 i++; 68 } else 69 if (digitv_ctrl_msg(d,USB_WRITE_COFDM, msg[i].buf[0], 70 &msg[i].buf[1],msg[i].len-1,NULL,0) < 0) 71 break; 72 } 73 74 mutex_unlock(&d->i2c_mutex); 75 return i; 76} 77 78static u32 digitv_i2c_func(struct i2c_adapter *adapter) 79{ 80 return I2C_FUNC_I2C; 81} 82 83static struct i2c_algorithm digitv_i2c_algo = { 84 .master_xfer = digitv_i2c_xfer, 85 .functionality = digitv_i2c_func, 86}; 87 88/* Callbacks for DVB USB */ 89static int digitv_identify_state (struct usb_device *udev, struct 90 dvb_usb_device_properties *props, struct dvb_usb_device_description **desc, 91 int *cold) 92{ 93 *cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0; 94 return 0; 95} 96 97static int digitv_mt352_demod_init(struct dvb_frontend *fe) 98{ 99 static u8 reset_buf[] = { 0x89, 0x38, 0x8a, 0x2d, 0x50, 0x80 }; 100 static u8 init_buf[] = { 0x68, 0xa0, 0x8e, 0x40, 0x53, 0x50, 101 0x67, 0x20, 0x7d, 0x01, 0x7c, 0x00, 0x7a, 0x00, 102 0x79, 0x20, 0x57, 0x05, 0x56, 0x31, 0x88, 0x0f, 103 0x75, 0x32 }; 104 int i; 105 106 for (i = 0; i < ARRAY_SIZE(reset_buf); i += 2) 107 mt352_write(fe, &reset_buf[i], 2); 108 109 msleep(1); 110 111 for (i = 0; i < ARRAY_SIZE(init_buf); i += 2) 112 mt352_write(fe, &init_buf[i], 2); 113 114 return 0; 115} 116 117static struct mt352_config digitv_mt352_config = { 118 .demod_init = digitv_mt352_demod_init, 119}; 120 121static int digitv_nxt6000_tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep) 122{ 123 struct dvb_usb_adapter *adap = fe->dvb->priv; 124 u8 b[5]; 125 126 fe->ops.tuner_ops.calc_regs(fe, fep, b, sizeof(b)); 127 if (fe->ops.i2c_gate_ctrl) 128 fe->ops.i2c_gate_ctrl(fe, 1); 129 return digitv_ctrl_msg(adap->dev, USB_WRITE_TUNER, 0, &b[1], 4, NULL, 0); 130} 131 132static struct nxt6000_config digitv_nxt6000_config = { 133 .clock_inversion = 1, 134}; 135 136static int digitv_frontend_attach(struct dvb_usb_adapter *adap) 137{ 138 struct digitv_state *st = adap->dev->priv; 139 140 if ((adap->fe = dvb_attach(mt352_attach, &digitv_mt352_config, &adap->dev->i2c_adap)) != NULL) { 141 st->is_nxt6000 = 0; 142 return 0; 143 } 144 if ((adap->fe = dvb_attach(nxt6000_attach, &digitv_nxt6000_config, &adap->dev->i2c_adap)) != NULL) { 145 st->is_nxt6000 = 1; 146 return 0; 147 } 148 return -EIO; 149} 150 151static int digitv_tuner_attach(struct dvb_usb_adapter *adap) 152{ 153 struct digitv_state *st = adap->dev->priv; 154 155 if (!dvb_attach(dvb_pll_attach, adap->fe, 0x60, NULL, DVB_PLL_TDED4)) 156 return -ENODEV; 157 158 if (st->is_nxt6000) 159 adap->fe->ops.tuner_ops.set_params = digitv_nxt6000_tuner_set_params; 160 161 return 0; 162} 163 164static struct ir_scancode ir_codes_digitv_table[] = { 165 { 0x5f55, KEY_0 }, 166 { 0x6f55, KEY_1 }, 167 { 0x9f55, KEY_2 }, 168 { 0xaf55, KEY_3 }, 169 { 0x5f56, KEY_4 }, 170 { 0x6f56, KEY_5 }, 171 { 0x9f56, KEY_6 }, 172 { 0xaf56, KEY_7 }, 173 { 0x5f59, KEY_8 }, 174 { 0x6f59, KEY_9 }, 175 { 0x9f59, KEY_TV }, 176 { 0xaf59, KEY_AUX }, 177 { 0x5f5a, KEY_DVD }, 178 { 0x6f5a, KEY_POWER }, 179 { 0x9f5a, KEY_MHP }, /* labelled 'Picture' */ 180 { 0xaf5a, KEY_AUDIO }, 181 { 0x5f65, KEY_INFO }, 182 { 0x6f65, KEY_F13 }, /* 16:9 */ 183 { 0x9f65, KEY_F14 }, /* 14:9 */ 184 { 0xaf65, KEY_EPG }, 185 { 0x5f66, KEY_EXIT }, 186 { 0x6f66, KEY_MENU }, 187 { 0x9f66, KEY_UP }, 188 { 0xaf66, KEY_DOWN }, 189 { 0x5f69, KEY_LEFT }, 190 { 0x6f69, KEY_RIGHT }, 191 { 0x9f69, KEY_ENTER }, 192 { 0xaf69, KEY_CHANNELUP }, 193 { 0x5f6a, KEY_CHANNELDOWN }, 194 { 0x6f6a, KEY_VOLUMEUP }, 195 { 0x9f6a, KEY_VOLUMEDOWN }, 196 { 0xaf6a, KEY_RED }, 197 { 0x5f95, KEY_GREEN }, 198 { 0x6f95, KEY_YELLOW }, 199 { 0x9f95, KEY_BLUE }, 200 { 0xaf95, KEY_SUBTITLE }, 201 { 0x5f96, KEY_F15 }, /* AD */ 202 { 0x6f96, KEY_TEXT }, 203 { 0x9f96, KEY_MUTE }, 204 { 0xaf96, KEY_REWIND }, 205 { 0x5f99, KEY_STOP }, 206 { 0x6f99, KEY_PLAY }, 207 { 0x9f99, KEY_FASTFORWARD }, 208 { 0xaf99, KEY_F16 }, /* chapter */ 209 { 0x5f9a, KEY_PAUSE }, 210 { 0x6f9a, KEY_PLAY }, 211 { 0x9f9a, KEY_RECORD }, 212 { 0xaf9a, KEY_F17 }, /* picture in picture */ 213 { 0x5fa5, KEY_KPPLUS }, /* zoom in */ 214 { 0x6fa5, KEY_KPMINUS }, /* zoom out */ 215 { 0x9fa5, KEY_F18 }, /* capture */ 216 { 0xafa5, KEY_F19 }, /* web */ 217 { 0x5fa6, KEY_EMAIL }, 218 { 0x6fa6, KEY_PHONE }, 219 { 0x9fa6, KEY_PC }, 220}; 221 222static int digitv_rc_query(struct dvb_usb_device *d, u32 *event, int *state) 223{ 224 int i; 225 u8 key[5]; 226 u8 b[4] = { 0 }; 227 228 *event = 0; 229 *state = REMOTE_NO_KEY_PRESSED; 230 231 digitv_ctrl_msg(d,USB_READ_REMOTE,0,NULL,0,&key[1],4); 232 233 /* Tell the device we've read the remote. Not sure how necessary 234 this is, but the Nebula SDK does it. */ 235 digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0); 236 237 /* if something is inside the buffer, simulate key press */ 238 if (key[1] != 0) 239 { 240 for (i = 0; i < d->props.rc.legacy.rc_key_map_size; i++) { 241 if (rc5_custom(&d->props.rc.legacy.rc_key_map[i]) == key[1] && 242 rc5_data(&d->props.rc.legacy.rc_key_map[i]) == key[2]) { 243 *event = d->props.rc.legacy.rc_key_map[i].keycode; 244 *state = REMOTE_KEY_PRESSED; 245 return 0; 246 } 247 } 248 } 249 250 if (key[0] != 0) 251 deb_rc("key: %x %x %x %x %x\n",key[0],key[1],key[2],key[3],key[4]); 252 return 0; 253} 254 255/* DVB USB Driver stuff */ 256static struct dvb_usb_device_properties digitv_properties; 257 258static int digitv_probe(struct usb_interface *intf, 259 const struct usb_device_id *id) 260{ 261 struct dvb_usb_device *d; 262 int ret = dvb_usb_device_init(intf, &digitv_properties, THIS_MODULE, &d, 263 adapter_nr); 264 if (ret == 0) { 265 u8 b[4] = { 0 }; 266 267 if (d != NULL) { /* do that only when the firmware is loaded */ 268 b[0] = 1; 269 digitv_ctrl_msg(d,USB_WRITE_REMOTE_TYPE,0,b,4,NULL,0); 270 271 b[0] = 0; 272 digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0); 273 } 274 } 275 return ret; 276} 277 278static struct usb_device_id digitv_table [] = { 279 { USB_DEVICE(USB_VID_ANCHOR, USB_PID_NEBULA_DIGITV) }, 280 { } /* Terminating entry */ 281}; 282MODULE_DEVICE_TABLE (usb, digitv_table); 283 284static struct dvb_usb_device_properties digitv_properties = { 285 .caps = DVB_USB_IS_AN_I2C_ADAPTER, 286 287 .usb_ctrl = CYPRESS_FX2, 288 .firmware = "dvb-usb-digitv-02.fw", 289 290 .size_of_priv = sizeof(struct digitv_state), 291 292 .num_adapters = 1, 293 .adapter = { 294 { 295 .frontend_attach = digitv_frontend_attach, 296 .tuner_attach = digitv_tuner_attach, 297 298 /* parameter for the MPEG2-data transfer */ 299 .stream = { 300 .type = USB_BULK, 301 .count = 7, 302 .endpoint = 0x02, 303 .u = { 304 .bulk = { 305 .buffersize = 4096, 306 } 307 } 308 }, 309 } 310 }, 311 .identify_state = digitv_identify_state, 312 313 .rc.legacy = { 314 .rc_interval = 1000, 315 .rc_key_map = ir_codes_digitv_table, 316 .rc_key_map_size = ARRAY_SIZE(ir_codes_digitv_table), 317 .rc_query = digitv_rc_query, 318 }, 319 320 .i2c_algo = &digitv_i2c_algo, 321 322 .generic_bulk_ctrl_endpoint = 0x01, 323 324 .num_device_descs = 1, 325 .devices = { 326 { "Nebula Electronics uDigiTV DVB-T USB2.0)", 327 { &digitv_table[0], NULL }, 328 { NULL }, 329 }, 330 { NULL }, 331 } 332}; 333 334static struct usb_driver digitv_driver = { 335 .name = "dvb_usb_digitv", 336 .probe = digitv_probe, 337 .disconnect = dvb_usb_device_exit, 338 .id_table = digitv_table, 339}; 340 341/* module stuff */ 342static int __init digitv_module_init(void) 343{ 344 int result; 345 if ((result = usb_register(&digitv_driver))) { 346 err("usb_register failed. Error number %d",result); 347 return result; 348 } 349 350 return 0; 351} 352 353static void __exit digitv_module_exit(void) 354{ 355 /* deregister this driver from the USB subsystem */ 356 usb_deregister(&digitv_driver); 357} 358 359module_init (digitv_module_init); 360module_exit (digitv_module_exit); 361 362MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>"); 363MODULE_DESCRIPTION("Driver for Nebula Electronics uDigiTV DVB-T USB2.0"); 364MODULE_VERSION("1.0-alpha"); 365MODULE_LICENSE("GPL"); 366