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