1 /* dvb-usb.h is part of the DVB USB library. 2 * 3 * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de) 4 * see dvb-usb-init.c for copyright information. 5 * 6 * the headerfile, all dvb-usb-drivers have to include. 7 * 8 * TODO: clean-up the structures for unused fields and update the comments 9 */ 10 #ifndef __DVB_USB_H__ 11 #define __DVB_USB_H__ 12 13 #include <linux/input.h> 14 #include <linux/usb.h> 15 #include <linux/firmware.h> 16 #include <linux/mutex.h> 17 #include <media/rc-core.h> 18 19 #include "dvb_frontend.h" 20 #include "dvb_demux.h" 21 #include "dvb_net.h" 22 #include "dmxdev.h" 23 24 #include "dvb-pll.h" 25 26 #include "dvb-usb-ids.h" 27 28 /* debug */ 29 #ifdef CONFIG_DVB_USB_DEBUG 30 #define dprintk(var,level,args...) \ 31 do { if ((var & level)) { printk(args); } } while (0) 32 33 #define debug_dump(b,l,func) {\ 34 int loop_; \ 35 for (loop_ = 0; loop_ < l; loop_++) func("%02x ", b[loop_]); \ 36 func("\n");\ 37 } 38 #define DVB_USB_DEBUG_STATUS 39 #else 40 #define dprintk(args...) 41 #define debug_dump(b,l,func) 42 43 #define DVB_USB_DEBUG_STATUS " (debugging is not enabled)" 44 45 #endif 46 47 /* generic log methods - taken from usb.h */ 48 #ifndef DVB_USB_LOG_PREFIX 49 #define DVB_USB_LOG_PREFIX "dvb-usb (please define a log prefix)" 50 #endif 51 52 #undef err 53 #define err(format, arg...) printk(KERN_ERR DVB_USB_LOG_PREFIX ": " format "\n" , ## arg) 54 #undef info 55 #define info(format, arg...) printk(KERN_INFO DVB_USB_LOG_PREFIX ": " format "\n" , ## arg) 56 #undef warn 57 #define warn(format, arg...) printk(KERN_WARNING DVB_USB_LOG_PREFIX ": " format "\n" , ## arg) 58 59 /** 60 * struct dvb_usb_device_description - name and its according USB IDs 61 * @name: real name of the box, regardless which DVB USB device class is in use 62 * @cold_ids: array of struct usb_device_id which describe the device in 63 * pre-firmware state 64 * @warm_ids: array of struct usb_device_id which describe the device in 65 * post-firmware state 66 * 67 * Each DVB USB device class can have one or more actual devices, this struct 68 * assigns a name to it. 69 */ 70 struct dvb_usb_device_description { 71 const char *name; 72 73 #define DVB_USB_ID_MAX_NUM 15 74 struct usb_device_id *cold_ids[DVB_USB_ID_MAX_NUM]; 75 struct usb_device_id *warm_ids[DVB_USB_ID_MAX_NUM]; 76 }; 77 78 static inline u8 rc5_custom(struct rc_map_table *key) 79 { 80 return (key->scancode >> 8) & 0xff; 81 } 82 83 static inline u8 rc5_data(struct rc_map_table *key) 84 { 85 return key->scancode & 0xff; 86 } 87 88 static inline u16 rc5_scan(struct rc_map_table *key) 89 { 90 return key->scancode & 0xffff; 91 } 92 93 struct dvb_usb_device; 94 struct dvb_usb_adapter; 95 struct usb_data_stream; 96 97 /** 98 * Properties of USB streaming - TODO this structure should be somewhere else 99 * describes the kind of USB transfer used for data-streaming. 100 * (BULK or ISOC) 101 */ 102 struct usb_data_stream_properties { 103 #define USB_BULK 1 104 #define USB_ISOC 2 105 int type; 106 int count; 107 int endpoint; 108 109 union { 110 struct { 111 int buffersize; /* per URB */ 112 } bulk; 113 struct { 114 int framesperurb; 115 int framesize; 116 int interval; 117 } isoc; 118 } u; 119 }; 120 121 /** 122 * struct dvb_usb_adapter_properties - properties of a dvb-usb-adapter. 123 * A DVB-USB-Adapter is basically a dvb_adapter which is present on a USB-device. 124 * @caps: capabilities of the DVB USB device. 125 * @pid_filter_count: number of PID filter position in the optional hardware 126 * PID-filter. 127 * @num_frontends: number of frontends of the DVB USB adapter. 128 * @frontend_ctrl: called to power on/off active frontend. 129 * @streaming_ctrl: called to start and stop the MPEG2-TS streaming of the 130 * device (not URB submitting/killing). 131 * @pid_filter_ctrl: called to en/disable the PID filter, if any. 132 * @pid_filter: called to set/unset a PID for filtering. 133 * @frontend_attach: called to attach the possible frontends (fill fe-field 134 * of struct dvb_usb_device). 135 * @tuner_attach: called to attach the correct tuner and to fill pll_addr, 136 * pll_desc and pll_init_buf of struct dvb_usb_device). 137 * @stream: configuration of the USB streaming 138 */ 139 struct dvb_usb_adapter_fe_properties { 140 #define DVB_USB_ADAP_HAS_PID_FILTER 0x01 141 #define DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF 0x02 142 #define DVB_USB_ADAP_NEED_PID_FILTERING 0x04 143 #define DVB_USB_ADAP_RECEIVES_204_BYTE_TS 0x08 144 #define DVB_USB_ADAP_RECEIVES_RAW_PAYLOAD 0x10 145 int caps; 146 int pid_filter_count; 147 148 int (*streaming_ctrl) (struct dvb_usb_adapter *, int); 149 int (*pid_filter_ctrl) (struct dvb_usb_adapter *, int); 150 int (*pid_filter) (struct dvb_usb_adapter *, int, u16, int); 151 152 int (*frontend_attach) (struct dvb_usb_adapter *); 153 int (*tuner_attach) (struct dvb_usb_adapter *); 154 155 struct usb_data_stream_properties stream; 156 157 int size_of_priv; 158 }; 159 160 #define MAX_NO_OF_FE_PER_ADAP 3 161 struct dvb_usb_adapter_properties { 162 int size_of_priv; 163 164 int (*frontend_ctrl) (struct dvb_frontend *, int); 165 166 int num_frontends; 167 struct dvb_usb_adapter_fe_properties fe[MAX_NO_OF_FE_PER_ADAP]; 168 }; 169 170 /** 171 * struct dvb_rc_legacy - old properties of remote controller 172 * @rc_map_table: a hard-wired array of struct rc_map_table (NULL to disable 173 * remote control handling). 174 * @rc_map_size: number of items in @rc_map_table. 175 * @rc_query: called to query an event event. 176 * @rc_interval: time in ms between two queries. 177 */ 178 struct dvb_rc_legacy { 179 /* remote control properties */ 180 #define REMOTE_NO_KEY_PRESSED 0x00 181 #define REMOTE_KEY_PRESSED 0x01 182 #define REMOTE_KEY_REPEAT 0x02 183 struct rc_map_table *rc_map_table; 184 int rc_map_size; 185 int (*rc_query) (struct dvb_usb_device *, u32 *, int *); 186 int rc_interval; 187 }; 188 189 /** 190 * struct dvb_rc properties of remote controller, using rc-core 191 * @rc_codes: name of rc codes table 192 * @protocol: type of protocol(s) currently used by the driver 193 * @allowed_protos: protocol(s) supported by the driver 194 * @driver_type: Used to point if a device supports raw mode 195 * @change_protocol: callback to change protocol 196 * @rc_query: called to query an event event. 197 * @rc_interval: time in ms between two queries. 198 * @bulk_mode: device supports bulk mode for RC (disable polling mode) 199 */ 200 struct dvb_rc { 201 char *rc_codes; 202 u64 protocol; 203 u64 allowed_protos; 204 enum rc_driver_type driver_type; 205 int (*change_protocol)(struct rc_dev *dev, u64 *rc_type); 206 char *module_name; 207 int (*rc_query) (struct dvb_usb_device *d); 208 int rc_interval; 209 bool bulk_mode; /* uses bulk mode */ 210 }; 211 212 /** 213 * enum dvb_usb_mode - Specifies if it is using a legacy driver or a new one 214 * based on rc-core 215 * This is initialized/used only inside dvb-usb-remote.c. 216 * It shouldn't be set by the drivers. 217 */ 218 enum dvb_usb_mode { 219 DVB_RC_LEGACY, 220 DVB_RC_CORE, 221 }; 222 223 /** 224 * struct dvb_usb_device_properties - properties of a dvb-usb-device 225 * @usb_ctrl: which USB device-side controller is in use. Needed for firmware 226 * download. 227 * @firmware: name of the firmware file. 228 * @download_firmware: called to download the firmware when the usb_ctrl is 229 * DEVICE_SPECIFIC. 230 * @no_reconnect: device doesn't do a reconnect after downloading the firmware, 231 * so do the warm initialization right after it 232 * 233 * @size_of_priv: how many bytes shall be allocated for the private field 234 * of struct dvb_usb_device. 235 * 236 * @power_ctrl: called to enable/disable power of the device. 237 * @read_mac_address: called to read the MAC address of the device. 238 * @identify_state: called to determine the state (cold or warm), when it 239 * is not distinguishable by the USB IDs. 240 * 241 * @rc: remote controller properties 242 * 243 * @i2c_algo: i2c_algorithm if the device has I2CoverUSB. 244 * 245 * @generic_bulk_ctrl_endpoint: most of the DVB USB devices have a generic 246 * endpoint which received control messages with bulk transfers. When this 247 * is non-zero, one can use dvb_usb_generic_rw and dvb_usb_generic_write- 248 * helper functions. 249 * 250 * @generic_bulk_ctrl_endpoint_response: some DVB USB devices use a separate 251 * endpoint for responses to control messages sent with bulk transfers via 252 * the generic_bulk_ctrl_endpoint. When this is non-zero, this will be used 253 * instead of the generic_bulk_ctrl_endpoint when reading usb responses in 254 * the dvb_usb_generic_rw helper function. 255 * 256 * @num_device_descs: number of struct dvb_usb_device_description in @devices 257 * @devices: array of struct dvb_usb_device_description compatibles with these 258 * properties. 259 */ 260 #define MAX_NO_OF_ADAPTER_PER_DEVICE 2 261 struct dvb_usb_device_properties { 262 263 #define DVB_USB_IS_AN_I2C_ADAPTER 0x01 264 int caps; 265 266 #define DEVICE_SPECIFIC 0 267 #define CYPRESS_AN2135 1 268 #define CYPRESS_AN2235 2 269 #define CYPRESS_FX2 3 270 int usb_ctrl; 271 int (*download_firmware) (struct usb_device *, const struct firmware *); 272 const char *firmware; 273 int no_reconnect; 274 275 int size_of_priv; 276 277 int num_adapters; 278 struct dvb_usb_adapter_properties adapter[MAX_NO_OF_ADAPTER_PER_DEVICE]; 279 280 int (*power_ctrl) (struct dvb_usb_device *, int); 281 int (*read_mac_address) (struct dvb_usb_device *, u8 []); 282 int (*identify_state) (struct usb_device *, struct dvb_usb_device_properties *, 283 struct dvb_usb_device_description **, int *); 284 285 struct { 286 enum dvb_usb_mode mode; /* Drivers shouldn't touch on it */ 287 struct dvb_rc_legacy legacy; 288 struct dvb_rc core; 289 } rc; 290 291 struct i2c_algorithm *i2c_algo; 292 293 int generic_bulk_ctrl_endpoint; 294 int generic_bulk_ctrl_endpoint_response; 295 296 int num_device_descs; 297 struct dvb_usb_device_description devices[12]; 298 }; 299 300 /** 301 * struct usb_data_stream - generic object of an USB stream 302 * @buf_num: number of buffer allocated. 303 * @buf_size: size of each buffer in buf_list. 304 * @buf_list: array containing all allocate buffers for streaming. 305 * @dma_addr: list of dma_addr_t for each buffer in buf_list. 306 * 307 * @urbs_initialized: number of URBs initialized. 308 * @urbs_submitted: number of URBs submitted. 309 */ 310 #define MAX_NO_URBS_FOR_DATA_STREAM 10 311 struct usb_data_stream { 312 struct usb_device *udev; 313 struct usb_data_stream_properties props; 314 315 #define USB_STATE_INIT 0x00 316 #define USB_STATE_URB_BUF 0x01 317 int state; 318 319 void (*complete) (struct usb_data_stream *, u8 *, size_t); 320 321 struct urb *urb_list[MAX_NO_URBS_FOR_DATA_STREAM]; 322 int buf_num; 323 unsigned long buf_size; 324 u8 *buf_list[MAX_NO_URBS_FOR_DATA_STREAM]; 325 dma_addr_t dma_addr[MAX_NO_URBS_FOR_DATA_STREAM]; 326 327 int urbs_initialized; 328 int urbs_submitted; 329 330 void *user_priv; 331 }; 332 333 /** 334 * struct dvb_usb_adapter - a DVB adapter on a USB device 335 * @id: index of this adapter (starting with 0). 336 * 337 * @feedcount: number of reqested feeds (used for streaming-activation) 338 * @pid_filtering: is hardware pid_filtering used or not. 339 * 340 * @pll_addr: I2C address of the tuner for programming 341 * @pll_init: array containing the initialization buffer 342 * @pll_desc: pointer to the appropriate struct dvb_pll_desc 343 * @tuner_pass_ctrl: called to (de)activate tuner passthru of the demod or the board 344 * 345 * @dvb_adap: device's dvb_adapter. 346 * @dmxdev: device's dmxdev. 347 * @demux: device's software demuxer. 348 * @dvb_net: device's dvb_net interfaces. 349 * @dvb_frontend: device's frontend. 350 * @max_feed_count: how many feeds can be handled simultaneously by this 351 * device 352 * 353 * @fe_init: rerouted frontend-init (wakeup) function. 354 * @fe_sleep: rerouted frontend-sleep function. 355 * 356 * @stream: the usb data stream. 357 */ 358 struct dvb_usb_fe_adapter { 359 struct dvb_frontend *fe; 360 361 int (*fe_init) (struct dvb_frontend *); 362 int (*fe_sleep) (struct dvb_frontend *); 363 364 struct usb_data_stream stream; 365 366 int pid_filtering; 367 int max_feed_count; 368 369 void *priv; 370 }; 371 372 struct dvb_usb_adapter { 373 struct dvb_usb_device *dev; 374 struct dvb_usb_adapter_properties props; 375 376 #define DVB_USB_ADAP_STATE_INIT 0x000 377 #define DVB_USB_ADAP_STATE_DVB 0x001 378 int state; 379 380 u8 id; 381 382 int feedcount; 383 384 /* dvb */ 385 struct dvb_adapter dvb_adap; 386 struct dmxdev dmxdev; 387 struct dvb_demux demux; 388 struct dvb_net dvb_net; 389 390 struct dvb_usb_fe_adapter fe_adap[MAX_NO_OF_FE_PER_ADAP]; 391 int active_fe; 392 int num_frontends_initialized; 393 394 void *priv; 395 }; 396 397 /** 398 * struct dvb_usb_device - object of a DVB USB device 399 * @props: copy of the struct dvb_usb_properties this device belongs to. 400 * @desc: pointer to the device's struct dvb_usb_device_description. 401 * @state: initialization and runtime state of the device. 402 * 403 * @powered: indicated whether the device is power or not. 404 * Powered is in/decremented for each call to modify the state. 405 * @udev: pointer to the device's struct usb_device. 406 * 407 * @usb_mutex: semaphore of USB control messages (reading needs two messages) 408 * @i2c_mutex: semaphore for i2c-transfers 409 * 410 * @i2c_adap: device's i2c_adapter if it uses I2CoverUSB 411 * 412 * @rc_dev: rc device for the remote control (rc-core mode) 413 * @input_dev: input device for the remote control (legacy mode) 414 * @rc_query_work: struct work_struct frequent rc queries 415 * @last_event: last triggered event 416 * @last_state: last state (no, pressed, repeat) 417 * @owner: owner of the dvb_adapter 418 * @priv: private data of the actual driver (allocate by dvb-usb, size defined 419 * in size_of_priv of dvb_usb_properties). 420 */ 421 struct dvb_usb_device { 422 struct dvb_usb_device_properties props; 423 struct dvb_usb_device_description *desc; 424 425 struct usb_device *udev; 426 427 #define DVB_USB_STATE_INIT 0x000 428 #define DVB_USB_STATE_I2C 0x001 429 #define DVB_USB_STATE_DVB 0x002 430 #define DVB_USB_STATE_REMOTE 0x004 431 int state; 432 433 int powered; 434 435 /* locking */ 436 struct mutex usb_mutex; 437 438 /* i2c */ 439 struct mutex i2c_mutex; 440 struct i2c_adapter i2c_adap; 441 442 int num_adapters_initialized; 443 struct dvb_usb_adapter adapter[MAX_NO_OF_ADAPTER_PER_DEVICE]; 444 445 /* remote control */ 446 struct rc_dev *rc_dev; 447 struct input_dev *input_dev; 448 char rc_phys[64]; 449 struct delayed_work rc_query_work; 450 u32 last_event; 451 int last_state; 452 453 struct module *owner; 454 455 void *priv; 456 }; 457 458 extern int dvb_usb_device_init(struct usb_interface *, 459 struct dvb_usb_device_properties *, 460 struct module *, struct dvb_usb_device **, 461 short *adapter_nums); 462 extern void dvb_usb_device_exit(struct usb_interface *); 463 464 /* the generic read/write method for device control */ 465 extern int dvb_usb_generic_rw(struct dvb_usb_device *, u8 *, u16, u8 *, u16,int); 466 extern int dvb_usb_generic_write(struct dvb_usb_device *, u8 *, u16); 467 468 /* commonly used remote control parsing */ 469 extern int dvb_usb_nec_rc_key_to_event(struct dvb_usb_device *, u8[], u32 *, int *); 470 471 /* commonly used firmware download types and function */ 472 struct hexline { 473 u8 len; 474 u32 addr; 475 u8 type; 476 u8 data[255]; 477 u8 chk; 478 }; 479 extern int usb_cypress_load_firmware(struct usb_device *udev, const struct firmware *fw, int type); 480 extern int dvb_usb_get_hexline(const struct firmware *fw, struct hexline *hx, int *pos); 481 482 483 #endif 484