1 /* 2 * DVB USB framework 3 * 4 * Copyright (C) 2004-6 Patrick Boettcher <patrick.boettcher@desy.de> 5 * Copyright (C) 2012 Antti Palosaari <crope@iki.fi> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License along 18 * with this program; if not, write to the Free Software Foundation, Inc., 19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 20 */ 21 22 #ifndef DVB_USB_H 23 #define DVB_USB_H 24 25 #include <linux/usb/input.h> 26 #include <linux/firmware.h> 27 #include <media/rc-core.h> 28 29 #include "dvb_frontend.h" 30 #include "dvb_demux.h" 31 #include "dvb_net.h" 32 #include "dmxdev.h" 33 #include "dvb-usb-ids.h" 34 35 /* 36 * device file: /dev/dvb/adapter[0-1]/frontend[0-2] 37 * 38 * |-- device 39 * | |-- adapter0 40 * | | |-- frontend0 41 * | | |-- frontend1 42 * | | `-- frontend2 43 * | `-- adapter1 44 * | |-- frontend0 45 * | |-- frontend1 46 * | `-- frontend2 47 * 48 * 49 * Commonly used variable names: 50 * d = pointer to device (struct dvb_usb_device *) 51 * adap = pointer to adapter (struct dvb_usb_adapter *) 52 * fe = pointer to frontend (struct dvb_frontend *) 53 * 54 * Use macros defined in that file to resolve needed pointers. 55 */ 56 57 /* helper macros for every DVB USB driver use */ 58 #define adap_to_d(adap) (container_of(adap, struct dvb_usb_device, \ 59 adapter[adap->id])) 60 #define adap_to_priv(adap) (adap_to_d(adap)->priv) 61 #define fe_to_adap(fe) ((struct dvb_usb_adapter *) ((fe)->dvb->priv)) 62 #define fe_to_d(fe) (adap_to_d(fe_to_adap(fe))) 63 #define fe_to_priv(fe) (fe_to_d(fe)->priv) 64 #define d_to_priv(d) (d->priv) 65 66 #define dvb_usb_dbg_usb_control_msg(udev, r, t, v, i, b, l) { \ 67 char *direction; \ 68 if (t == (USB_TYPE_VENDOR | USB_DIR_OUT)) \ 69 direction = ">>>"; \ 70 else \ 71 direction = "<<<"; \ 72 dev_dbg(&udev->dev, "%s: %02x %02x %02x %02x %02x %02x %02x %02x " \ 73 "%s %*ph\n", __func__, t, r, v & 0xff, v >> 8, \ 74 i & 0xff, i >> 8, l & 0xff, l >> 8, direction, l, b); \ 75 } 76 77 #define DVB_USB_STREAM_BULK(endpoint_, count_, size_) { \ 78 .type = USB_BULK, \ 79 .count = count_, \ 80 .endpoint = endpoint_, \ 81 .u = { \ 82 .bulk = { \ 83 .buffersize = size_, \ 84 } \ 85 } \ 86 } 87 88 #define DVB_USB_STREAM_ISOC(endpoint_, count_, frames_, size_, interval_) { \ 89 .type = USB_ISOC, \ 90 .count = count_, \ 91 .endpoint = endpoint_, \ 92 .u = { \ 93 .isoc = { \ 94 .framesperurb = frames_, \ 95 .framesize = size_,\ 96 .interval = interval_, \ 97 } \ 98 } \ 99 } 100 101 #define DVB_USB_DEVICE(vend, prod, props_, name_, rc) \ 102 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, \ 103 .idVendor = (vend), \ 104 .idProduct = (prod), \ 105 .driver_info = (kernel_ulong_t) &((const struct dvb_usb_driver_info) { \ 106 .props = (props_), \ 107 .name = (name_), \ 108 .rc_map = (rc), \ 109 }) 110 111 struct dvb_usb_device; 112 struct dvb_usb_adapter; 113 114 /** 115 * structure for carrying all needed data from the device driver to the general 116 * dvb usb routines 117 * @name: device name 118 * @rc_map: name of rc codes table 119 * @props: structure containing all device properties 120 */ 121 struct dvb_usb_driver_info { 122 const char *name; 123 const char *rc_map; 124 const struct dvb_usb_device_properties *props; 125 }; 126 127 /** 128 * structure for remote controller configuration 129 * @map_name: name of rc codes table 130 * @allowed_protos: protocol(s) supported by the driver 131 * @change_protocol: callback to change protocol 132 * @query: called to query an event from the device 133 * @interval: time in ms between two queries 134 * @driver_type: used to point if a device supports raw mode 135 * @bulk_mode: device supports bulk mode for rc (disable polling mode) 136 */ 137 struct dvb_usb_rc { 138 const char *map_name; 139 u64 allowed_protos; 140 int (*change_protocol)(struct rc_dev *dev, u64 *rc_type); 141 int (*query) (struct dvb_usb_device *d); 142 unsigned int interval; 143 enum rc_driver_type driver_type; 144 bool bulk_mode; 145 }; 146 147 /** 148 * usb streaming configration for adapter 149 * @type: urb type 150 * @count: count of used urbs 151 * @endpoint: stream usb endpoint number 152 */ 153 struct usb_data_stream_properties { 154 #define USB_BULK 1 155 #define USB_ISOC 2 156 u8 type; 157 u8 count; 158 u8 endpoint; 159 160 union { 161 struct { 162 unsigned int buffersize; /* per URB */ 163 } bulk; 164 struct { 165 int framesperurb; 166 int framesize; 167 int interval; 168 } isoc; 169 } u; 170 }; 171 172 /** 173 * properties of dvb usb device adapter 174 * @caps: adapter capabilities 175 * @pid_filter_count: pid count of adapter pid-filter 176 * @pid_filter_ctrl: called to enable/disable pid-filter 177 * @pid_filter: called to set/unset pid for filtering 178 * @stream: adapter usb stream configuration 179 */ 180 #define MAX_NO_OF_FE_PER_ADAP 3 181 struct dvb_usb_adapter_properties { 182 #define DVB_USB_ADAP_HAS_PID_FILTER 0x01 183 #define DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF 0x02 184 #define DVB_USB_ADAP_NEED_PID_FILTERING 0x04 185 u8 caps; 186 187 u8 pid_filter_count; 188 int (*pid_filter_ctrl) (struct dvb_usb_adapter *, int); 189 int (*pid_filter) (struct dvb_usb_adapter *, int, u16, int); 190 191 struct usb_data_stream_properties stream; 192 }; 193 194 /** 195 * struct dvb_usb_device_properties - properties of a dvb-usb-device 196 * @driver_name: name of the owning driver module 197 * @owner: owner of the dvb_adapter 198 * @adapter_nr: values from the DVB_DEFINE_MOD_OPT_ADAPTER_NR() macro 199 * @bInterfaceNumber: usb interface number driver binds 200 * @size_of_priv: bytes allocated for the driver private data 201 * @generic_bulk_ctrl_endpoint: bulk control endpoint number for sent 202 * @generic_bulk_ctrl_endpoint_response: bulk control endpoint number for 203 * receive 204 * @generic_bulk_ctrl_delay: delay between bulk control sent and receive message 205 * @identify_state: called to determine the firmware state (cold or warm) and 206 * return possible firmware file name to be loaded 207 * @firmware: name of the firmware file to be loaded 208 * @download_firmware: called to download the firmware 209 * @i2c_algo: i2c_algorithm if the device has i2c-adapter 210 * @num_adapters: dvb usb device adapter count 211 * @get_adapter_count: called to resolve adapter count 212 * @adapter: array of all adapter properties of device 213 * @power_ctrl: called to enable/disable power of the device 214 * @read_config: called to resolve device configuration 215 * @read_mac_address: called to resolve adapter mac-address 216 * @frontend_attach: called to attach the possible frontends 217 * @frontend_detach: called to detach the possible frontends 218 * @tuner_attach: called to attach the possible tuners 219 * @frontend_ctrl: called to power on/off active frontend 220 * @streaming_ctrl: called to start/stop the usb streaming of adapter 221 * @init: called after adapters are created in order to finalize device 222 * configuration 223 * @exit: called when driver is unloaded 224 * @get_rc_config: called to resolve used remote controller configuration 225 * @get_stream_config: called to resolve input and output stream configuration 226 * of the adapter just before streaming is started. input stream is transport 227 * stream from the demodulator and output stream is usb stream to host. 228 */ 229 #define MAX_NO_OF_ADAPTER_PER_DEVICE 2 230 struct dvb_usb_device_properties { 231 const char *driver_name; 232 struct module *owner; 233 short *adapter_nr; 234 235 u8 bInterfaceNumber; 236 unsigned int size_of_priv; 237 u8 generic_bulk_ctrl_endpoint; 238 u8 generic_bulk_ctrl_endpoint_response; 239 unsigned int generic_bulk_ctrl_delay; 240 241 #define WARM 0 242 #define COLD 1 243 int (*identify_state) (struct dvb_usb_device *, const char **); 244 const char *firmware; 245 #define RECONNECTS_USB 1 246 int (*download_firmware) (struct dvb_usb_device *, 247 const struct firmware *); 248 249 struct i2c_algorithm *i2c_algo; 250 251 unsigned int num_adapters; 252 int (*get_adapter_count) (struct dvb_usb_device *); 253 struct dvb_usb_adapter_properties adapter[MAX_NO_OF_ADAPTER_PER_DEVICE]; 254 int (*power_ctrl) (struct dvb_usb_device *, int); 255 int (*read_config) (struct dvb_usb_device *d); 256 int (*read_mac_address) (struct dvb_usb_adapter *, u8 []); 257 int (*frontend_attach) (struct dvb_usb_adapter *); 258 int (*frontend_detach)(struct dvb_usb_adapter *); 259 int (*tuner_attach) (struct dvb_usb_adapter *); 260 int (*tuner_detach)(struct dvb_usb_adapter *); 261 int (*frontend_ctrl) (struct dvb_frontend *, int); 262 int (*streaming_ctrl) (struct dvb_frontend *, int); 263 int (*init) (struct dvb_usb_device *); 264 void (*exit) (struct dvb_usb_device *); 265 int (*get_rc_config) (struct dvb_usb_device *, struct dvb_usb_rc *); 266 #define DVB_USB_FE_TS_TYPE_188 0 267 #define DVB_USB_FE_TS_TYPE_204 1 268 #define DVB_USB_FE_TS_TYPE_RAW 2 269 int (*get_stream_config) (struct dvb_frontend *, u8 *, 270 struct usb_data_stream_properties *); 271 }; 272 273 /** 274 * generic object of an usb stream 275 * @buf_num: number of buffer allocated 276 * @buf_size: size of each buffer in buf_list 277 * @buf_list: array containing all allocate buffers for streaming 278 * @dma_addr: list of dma_addr_t for each buffer in buf_list 279 * 280 * @urbs_initialized: number of URBs initialized 281 * @urbs_submitted: number of URBs submitted 282 */ 283 #define MAX_NO_URBS_FOR_DATA_STREAM 10 284 struct usb_data_stream { 285 struct usb_device *udev; 286 struct usb_data_stream_properties props; 287 288 #define USB_STATE_INIT 0x00 289 #define USB_STATE_URB_BUF 0x01 290 u8 state; 291 292 void (*complete) (struct usb_data_stream *, u8 *, size_t); 293 294 struct urb *urb_list[MAX_NO_URBS_FOR_DATA_STREAM]; 295 int buf_num; 296 unsigned long buf_size; 297 u8 *buf_list[MAX_NO_URBS_FOR_DATA_STREAM]; 298 dma_addr_t dma_addr[MAX_NO_URBS_FOR_DATA_STREAM]; 299 300 int urbs_initialized; 301 int urbs_submitted; 302 303 void *user_priv; 304 }; 305 306 /** 307 * dvb adapter object on dvb usb device 308 * @props: pointer to adapter properties 309 * @stream: adapter the usb data stream 310 * @id: index of this adapter (starting with 0) 311 * @ts_type: transport stream, input stream, type 312 * @suspend_resume_active: set when there is ongoing suspend / resume 313 * @pid_filtering: is hardware pid_filtering used or not 314 * @feed_count: current feed count 315 * @max_feed_count: maimum feed count device can handle 316 * @dvb_adap: adapter dvb_adapter 317 * @dmxdev: adapter dmxdev 318 * @demux: adapter software demuxer 319 * @dvb_net: adapter dvb_net interfaces 320 * @sync_mutex: mutex used to sync control and streaming of the adapter 321 * @fe: adapter frontends 322 * @fe_init: rerouted frontend-init function 323 * @fe_sleep: rerouted frontend-sleep function 324 */ 325 struct dvb_usb_adapter { 326 const struct dvb_usb_adapter_properties *props; 327 struct usb_data_stream stream; 328 u8 id; 329 u8 ts_type; 330 bool suspend_resume_active; 331 bool pid_filtering; 332 u8 feed_count; 333 u8 max_feed_count; 334 s8 active_fe; 335 #define ADAP_INIT 0 336 #define ADAP_SLEEP 1 337 #define ADAP_STREAMING 2 338 unsigned long state_bits; 339 340 /* dvb */ 341 struct dvb_adapter dvb_adap; 342 struct dmxdev dmxdev; 343 struct dvb_demux demux; 344 struct dvb_net dvb_net; 345 346 struct dvb_frontend *fe[MAX_NO_OF_FE_PER_ADAP]; 347 int (*fe_init[MAX_NO_OF_FE_PER_ADAP]) (struct dvb_frontend *); 348 int (*fe_sleep[MAX_NO_OF_FE_PER_ADAP]) (struct dvb_frontend *); 349 }; 350 351 /** 352 * dvb usb device object 353 * @props: device properties 354 * @name: device name 355 * @rc_map: name of rc codes table 356 * @rc_polling_active: set when RC polling is active 357 * @udev: pointer to the device's struct usb_device 358 * @rc: remote controller configuration 359 * @powered: indicated whether the device is power or not 360 * @usb_mutex: mutex for usb control messages 361 * @i2c_mutex: mutex for i2c-transfers 362 * @i2c_adap: device's i2c-adapter 363 * @rc_dev: rc device for the remote control 364 * @rc_query_work: work for polling remote 365 * @priv: private data of the actual driver (allocate by dvb usb, size defined 366 * in size_of_priv of dvb_usb_properties). 367 */ 368 struct dvb_usb_device { 369 const struct dvb_usb_device_properties *props; 370 const char *name; 371 const char *rc_map; 372 bool rc_polling_active; 373 struct usb_device *udev; 374 struct dvb_usb_rc rc; 375 int powered; 376 377 /* locking */ 378 struct mutex usb_mutex; 379 380 /* i2c */ 381 struct mutex i2c_mutex; 382 struct i2c_adapter i2c_adap; 383 384 struct dvb_usb_adapter adapter[MAX_NO_OF_ADAPTER_PER_DEVICE]; 385 386 /* remote control */ 387 struct rc_dev *rc_dev; 388 char rc_phys[64]; 389 struct delayed_work rc_query_work; 390 391 void *priv; 392 }; 393 394 extern int dvb_usbv2_probe(struct usb_interface *, 395 const struct usb_device_id *); 396 extern void dvb_usbv2_disconnect(struct usb_interface *); 397 extern int dvb_usbv2_suspend(struct usb_interface *, pm_message_t); 398 extern int dvb_usbv2_resume(struct usb_interface *); 399 extern int dvb_usbv2_reset_resume(struct usb_interface *); 400 401 /* the generic read/write method for device control */ 402 extern int dvb_usbv2_generic_rw(struct dvb_usb_device *, u8 *, u16, u8 *, u16); 403 extern int dvb_usbv2_generic_write(struct dvb_usb_device *, u8 *, u16); 404 /* caller must hold lock when locked versions are called */ 405 extern int dvb_usbv2_generic_rw_locked(struct dvb_usb_device *, 406 u8 *, u16, u8 *, u16); 407 extern int dvb_usbv2_generic_write_locked(struct dvb_usb_device *, u8 *, u16); 408 409 #endif 410