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 */ 20int 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 24static int digitv_ctrl_msg(struct dvb_usb_device *d, 25 u8 cmd, u8 vv, u8 *wbuf, int wlen, u8 *rbuf, int rlen) 26{ 27 int wo = (rbuf == NULL || rlen == 0); /* write-only */ 28 u8 sndbuf[7],rcvbuf[7]; 29 memset(sndbuf,0,7); memset(rcvbuf,0,7); 30 31 sndbuf[0] = cmd; 32 sndbuf[1] = vv; 33 sndbuf[2] = wo ? wlen : rlen; 34 35 if (wo) { 36 memcpy(&sndbuf[3],wbuf,wlen); 37 dvb_usb_generic_write(d,sndbuf,7); 38 } else { 39 dvb_usb_generic_rw(d,sndbuf,7,rcvbuf,7,10); 40 memcpy(rbuf,&rcvbuf[3],rlen); 41 } 42 return 0; 43} 44 45/* I2C */ 46static int digitv_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num) 47{ 48 struct dvb_usb_device *d = i2c_get_adapdata(adap); 49 int i; 50 51 if (mutex_lock_interruptible(&d->i2c_mutex) < 0) 52 return -EAGAIN; 53 54 if (num > 2) 55 warn("more than 2 i2c messages at a time is not handled yet. TODO."); 56 57 for (i = 0; i < num; i++) { 58 /* write/read request */ 59 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { 60 if (digitv_ctrl_msg(d, USB_READ_COFDM, msg[i].buf[0], NULL, 0, 61 msg[i+1].buf,msg[i+1].len) < 0) 62 break; 63 i++; 64 } else 65 if (digitv_ctrl_msg(d,USB_WRITE_COFDM, msg[i].buf[0], 66 &msg[i].buf[1],msg[i].len-1,NULL,0) < 0) 67 break; 68 } 69 70 mutex_unlock(&d->i2c_mutex); 71 return i; 72} 73 74static u32 digitv_i2c_func(struct i2c_adapter *adapter) 75{ 76 return I2C_FUNC_I2C; 77} 78 79static struct i2c_algorithm digitv_i2c_algo = { 80 .master_xfer = digitv_i2c_xfer, 81 .functionality = digitv_i2c_func, 82}; 83 84/* Callbacks for DVB USB */ 85static int digitv_identify_state (struct usb_device *udev, struct 86 dvb_usb_device_properties *props, struct dvb_usb_device_description **desc, 87 int *cold) 88{ 89 *cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0; 90 return 0; 91} 92 93static int digitv_mt352_demod_init(struct dvb_frontend *fe) 94{ 95 static u8 reset_buf[] = { 0x89, 0x38, 0x8a, 0x2d, 0x50, 0x80 }; 96 static u8 init_buf[] = { 0x68, 0xa0, 0x8e, 0x40, 0x53, 0x50, 97 0x67, 0x20, 0x7d, 0x01, 0x7c, 0x00, 0x7a, 0x00, 98 0x79, 0x20, 0x57, 0x05, 0x56, 0x31, 0x88, 0x0f, 99 0x75, 0x32 }; 100 int i; 101 102 for (i = 0; i < ARRAY_SIZE(reset_buf); i += 2) 103 mt352_write(fe, &reset_buf[i], 2); 104 105 msleep(1); 106 107 for (i = 0; i < ARRAY_SIZE(init_buf); i += 2) 108 mt352_write(fe, &init_buf[i], 2); 109 110 return 0; 111} 112 113static struct mt352_config digitv_mt352_config = { 114 .demod_init = digitv_mt352_demod_init, 115}; 116 117static int digitv_nxt6000_tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep) 118{ 119 struct dvb_usb_adapter *adap = fe->dvb->priv; 120 u8 b[5]; 121 dvb_usb_tuner_calc_regs(fe,fep,b, 5); 122 if (fe->ops.i2c_gate_ctrl) 123 fe->ops.i2c_gate_ctrl(fe, 1); 124 return digitv_ctrl_msg(adap->dev, USB_WRITE_TUNER, 0, &b[1], 4, NULL, 0); 125} 126 127static struct nxt6000_config digitv_nxt6000_config = { 128 .clock_inversion = 1, 129}; 130 131static int digitv_frontend_attach(struct dvb_usb_adapter *adap) 132{ 133 if ((adap->fe = dvb_attach(mt352_attach, &digitv_mt352_config, &adap->dev->i2c_adap)) != NULL) { 134 adap->fe->ops.tuner_ops.calc_regs = dvb_usb_tuner_calc_regs; 135 return 0; 136 } 137 if ((adap->fe = dvb_attach(nxt6000_attach, &digitv_nxt6000_config, &adap->dev->i2c_adap)) != NULL) { 138 adap->fe->ops.tuner_ops.set_params = digitv_nxt6000_tuner_set_params; 139 return 0; 140 } 141 return -EIO; 142} 143 144static int digitv_tuner_attach(struct dvb_usb_adapter *adap) 145{ 146 adap->pll_addr = 0x60; 147 adap->pll_desc = &dvb_pll_tded4; 148 return 0; 149} 150 151static struct dvb_usb_rc_key digitv_rc_keys[] = { 152 { 0x5f, 0x55, KEY_0 }, 153 { 0x6f, 0x55, KEY_1 }, 154 { 0x9f, 0x55, KEY_2 }, 155 { 0xaf, 0x55, KEY_3 }, 156 { 0x5f, 0x56, KEY_4 }, 157 { 0x6f, 0x56, KEY_5 }, 158 { 0x9f, 0x56, KEY_6 }, 159 { 0xaf, 0x56, KEY_7 }, 160 { 0x5f, 0x59, KEY_8 }, 161 { 0x6f, 0x59, KEY_9 }, 162 { 0x9f, 0x59, KEY_TV }, 163 { 0xaf, 0x59, KEY_AUX }, 164 { 0x5f, 0x5a, KEY_DVD }, 165 { 0x6f, 0x5a, KEY_POWER }, 166 { 0x9f, 0x5a, KEY_MHP }, /* labelled 'Picture' */ 167 { 0xaf, 0x5a, KEY_AUDIO }, 168 { 0x5f, 0x65, KEY_INFO }, 169 { 0x6f, 0x65, KEY_F13 }, /* 16:9 */ 170 { 0x9f, 0x65, KEY_F14 }, /* 14:9 */ 171 { 0xaf, 0x65, KEY_EPG }, 172 { 0x5f, 0x66, KEY_EXIT }, 173 { 0x6f, 0x66, KEY_MENU }, 174 { 0x9f, 0x66, KEY_UP }, 175 { 0xaf, 0x66, KEY_DOWN }, 176 { 0x5f, 0x69, KEY_LEFT }, 177 { 0x6f, 0x69, KEY_RIGHT }, 178 { 0x9f, 0x69, KEY_ENTER }, 179 { 0xaf, 0x69, KEY_CHANNELUP }, 180 { 0x5f, 0x6a, KEY_CHANNELDOWN }, 181 { 0x6f, 0x6a, KEY_VOLUMEUP }, 182 { 0x9f, 0x6a, KEY_VOLUMEDOWN }, 183 { 0xaf, 0x6a, KEY_RED }, 184 { 0x5f, 0x95, KEY_GREEN }, 185 { 0x6f, 0x95, KEY_YELLOW }, 186 { 0x9f, 0x95, KEY_BLUE }, 187 { 0xaf, 0x95, KEY_SUBTITLE }, 188 { 0x5f, 0x96, KEY_F15 }, /* AD */ 189 { 0x6f, 0x96, KEY_TEXT }, 190 { 0x9f, 0x96, KEY_MUTE }, 191 { 0xaf, 0x96, KEY_REWIND }, 192 { 0x5f, 0x99, KEY_STOP }, 193 { 0x6f, 0x99, KEY_PLAY }, 194 { 0x9f, 0x99, KEY_FASTFORWARD }, 195 { 0xaf, 0x99, KEY_F16 }, /* chapter */ 196 { 0x5f, 0x9a, KEY_PAUSE }, 197 { 0x6f, 0x9a, KEY_PLAY }, 198 { 0x9f, 0x9a, KEY_RECORD }, 199 { 0xaf, 0x9a, KEY_F17 }, /* picture in picture */ 200 { 0x5f, 0xa5, KEY_KPPLUS }, /* zoom in */ 201 { 0x6f, 0xa5, KEY_KPMINUS }, /* zoom out */ 202 { 0x9f, 0xa5, KEY_F18 }, /* capture */ 203 { 0xaf, 0xa5, KEY_F19 }, /* web */ 204 { 0x5f, 0xa6, KEY_EMAIL }, 205 { 0x6f, 0xa6, KEY_PHONE }, 206 { 0x9f, 0xa6, KEY_PC }, 207}; 208 209static int digitv_rc_query(struct dvb_usb_device *d, u32 *event, int *state) 210{ 211 int i; 212 u8 key[5]; 213 u8 b[4] = { 0 }; 214 215 *event = 0; 216 *state = REMOTE_NO_KEY_PRESSED; 217 218 digitv_ctrl_msg(d,USB_READ_REMOTE,0,NULL,0,&key[1],4); 219 220 /* Tell the device we've read the remote. Not sure how necessary 221 this is, but the Nebula SDK does it. */ 222 digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0); 223 224 /* if something is inside the buffer, simulate key press */ 225 if (key[1] != 0) 226 { 227 for (i = 0; i < d->props.rc_key_map_size; i++) { 228 if (d->props.rc_key_map[i].custom == key[1] && 229 d->props.rc_key_map[i].data == key[2]) { 230 *event = d->props.rc_key_map[i].event; 231 *state = REMOTE_KEY_PRESSED; 232 return 0; 233 } 234 } 235 } 236 237 if (key[0] != 0) 238 deb_rc("key: %x %x %x %x %x\n",key[0],key[1],key[2],key[3],key[4]); 239 return 0; 240} 241 242/* DVB USB Driver stuff */ 243static struct dvb_usb_device_properties digitv_properties; 244 245static int digitv_probe(struct usb_interface *intf, 246 const struct usb_device_id *id) 247{ 248 struct dvb_usb_device *d; 249 int ret; 250 if ((ret = dvb_usb_device_init(intf,&digitv_properties,THIS_MODULE,&d)) == 0) { 251 u8 b[4] = { 0 }; 252 253 if (d != NULL) { /* do that only when the firmware is loaded */ 254 b[0] = 1; 255 digitv_ctrl_msg(d,USB_WRITE_REMOTE_TYPE,0,b,4,NULL,0); 256 257 b[0] = 0; 258 digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0); 259 } 260 } 261 return ret; 262} 263 264static struct usb_device_id digitv_table [] = { 265 { USB_DEVICE(USB_VID_ANCHOR, USB_PID_NEBULA_DIGITV) }, 266 { } /* Terminating entry */ 267}; 268MODULE_DEVICE_TABLE (usb, digitv_table); 269 270static struct dvb_usb_device_properties digitv_properties = { 271 .caps = DVB_USB_IS_AN_I2C_ADAPTER, 272 273 .usb_ctrl = CYPRESS_FX2, 274 .firmware = "dvb-usb-digitv-02.fw", 275 276 .num_adapters = 1, 277 .adapter = { 278 { 279 .frontend_attach = digitv_frontend_attach, 280 .tuner_attach = digitv_tuner_attach, 281 282 /* parameter for the MPEG2-data transfer */ 283 .stream = { 284 .type = USB_BULK, 285 .count = 7, 286 .endpoint = 0x02, 287 .u = { 288 .bulk = { 289 .buffersize = 4096, 290 } 291 } 292 }, 293 } 294 }, 295 .identify_state = digitv_identify_state, 296 297 .rc_interval = 1000, 298 .rc_key_map = digitv_rc_keys, 299 .rc_key_map_size = ARRAY_SIZE(digitv_rc_keys), 300 .rc_query = digitv_rc_query, 301 302 .i2c_algo = &digitv_i2c_algo, 303 304 .generic_bulk_ctrl_endpoint = 0x01, 305 306 .num_device_descs = 1, 307 .devices = { 308 { "Nebula Electronics uDigiTV DVB-T USB2.0)", 309 { &digitv_table[0], NULL }, 310 { NULL }, 311 }, 312 { NULL }, 313 } 314}; 315 316static struct usb_driver digitv_driver = { 317 .name = "dvb_usb_digitv", 318 .probe = digitv_probe, 319 .disconnect = dvb_usb_device_exit, 320 .id_table = digitv_table, 321}; 322 323/* module stuff */ 324static int __init digitv_module_init(void) 325{ 326 int result; 327 if ((result = usb_register(&digitv_driver))) { 328 err("usb_register failed. Error number %d",result); 329 return result; 330 } 331 332 return 0; 333} 334 335static void __exit digitv_module_exit(void) 336{ 337 /* deregister this driver from the USB subsystem */ 338 usb_deregister(&digitv_driver); 339} 340 341module_init (digitv_module_init); 342module_exit (digitv_module_exit); 343 344MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>"); 345MODULE_DESCRIPTION("Driver for Nebula Electronics uDigiTV DVB-T USB2.0"); 346MODULE_VERSION("1.0-alpha"); 347MODULE_LICENSE("GPL"); 348