drivers/media/dvb/dvb-usb/digitv.c

   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 */
  20 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 static 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 */
  46 static 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
  74 static u32 digitv_i2c_func(struct i2c_adapter *adapter)
  75 {
  76         return I2C_FUNC_I2C;
  77 }
  78
  79 static struct i2c_algorithm digitv_i2c_algo = {
  80         .master_xfer   = digitv_i2c_xfer,
  81         .functionality = digitv_i2c_func,
  82 };
  83
  84 /* Callbacks for DVB USB */
  85 static 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
  93 static 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
 113 static struct mt352_config digitv_mt352_config = {
 114         .demod_init = digitv_mt352_demod_init,
 115 };
 116
 117 static 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
 127 static struct nxt6000_config digitv_nxt6000_config = {
 128         .clock_inversion = 1,
 129 };
 130
 131 static 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
 144 static 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
 151 static 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
 209 static 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 */
 243 static struct dvb_usb_device_properties digitv_properties;
 244
 245 static 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
 264 static struct usb_device_id digitv_table [] = {
 265                 { USB_DEVICE(USB_VID_ANCHOR, USB_PID_NEBULA_DIGITV) },
 266                 { }             /* Terminating entry */
 267 };
 268 MODULE_DEVICE_TABLE (usb, digitv_table);
 269
 270 static 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
 316 static 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 */
 324 static 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
 335 static void __exit digitv_module_exit(void)
 336 {
 337         /* deregister this driver from the USB subsystem */
 338         usb_deregister(&digitv_driver);
 339 }
 340
 341 module_init (digitv_module_init);
 342 module_exit (digitv_module_exit);
 343
 344 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
 345 MODULE_DESCRIPTION("Driver for Nebula Electronics uDigiTV DVB-T USB2.0");
 346 MODULE_VERSION("1.0-alpha");
 347 MODULE_LICENSE("GPL");