1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * DVB USB framework 4 * 5 * Copyright (C) 2004-6 Patrick Boettcher <patrick.boettcher@posteo.de> 6 * Copyright (C) 2012 Antti Palosaari <crope@iki.fi> 7 */ 8 9 #ifndef DVB_USB_H 10 #define DVB_USB_H 11 12 #include <linux/usb/input.h> 13 #include <linux/firmware.h> 14 #include <media/rc-core.h> 15 #include <media/media-device.h> 16 17 #include <media/dvb_frontend.h> 18 #include <media/dvb_demux.h> 19 #include <media/dvb_net.h> 20 #include <media/dmxdev.h> 21 #include <media/dvb-usb-ids.h> 22 23 /* 24 * device file: /dev/dvb/adapter[0-1]/frontend[0-2] 25 * 26 * |-- device 27 * | |-- adapter0 28 * | | |-- frontend0 29 * | | |-- frontend1 30 * | | `-- frontend2 31 * | `-- adapter1 32 * | |-- frontend0 33 * | |-- frontend1 34 * | `-- frontend2 35 * 36 * 37 * Commonly used variable names: 38 * d = pointer to device (struct dvb_usb_device *) 39 * adap = pointer to adapter (struct dvb_usb_adapter *) 40 * fe = pointer to frontend (struct dvb_frontend *) 41 * 42 * Use macros defined in that file to resolve needed pointers. 43 */ 44 45 /* helper macros for every DVB USB driver use */ 46 #define adap_to_d(adap) (container_of(adap, struct dvb_usb_device, \ 47 adapter[adap->id])) 48 #define adap_to_priv(adap) (adap_to_d(adap)->priv) 49 #define fe_to_adap(fe) ((struct dvb_usb_adapter *) ((fe)->dvb->priv)) 50 #define fe_to_d(fe) (adap_to_d(fe_to_adap(fe))) 51 #define fe_to_priv(fe) (fe_to_d(fe)->priv) 52 #define d_to_priv(d) (d->priv) 53 54 #define dvb_usb_dbg_usb_control_msg(udev, r, t, v, i, b, l) { \ 55 char *direction; \ 56 if (t == (USB_TYPE_VENDOR | USB_DIR_OUT)) \ 57 direction = ">>>"; \ 58 else \ 59 direction = "<<<"; \ 60 dev_dbg(&udev->dev, "%s: %02x %02x %02x %02x %02x %02x %02x %02x " \ 61 "%s %*ph\n", __func__, t, r, v & 0xff, v >> 8, \ 62 i & 0xff, i >> 8, l & 0xff, l >> 8, direction, l, b); \ 63 } 64 65 #define DVB_USB_STREAM_BULK(endpoint_, count_, size_) { \ 66 .type = USB_BULK, \ 67 .count = count_, \ 68 .endpoint = endpoint_, \ 69 .u = { \ 70 .bulk = { \ 71 .buffersize = size_, \ 72 } \ 73 } \ 74 } 75 76 #define DVB_USB_STREAM_ISOC(endpoint_, count_, frames_, size_, interval_) { \ 77 .type = USB_ISOC, \ 78 .count = count_, \ 79 .endpoint = endpoint_, \ 80 .u = { \ 81 .isoc = { \ 82 .framesperurb = frames_, \ 83 .framesize = size_,\ 84 .interval = interval_, \ 85 } \ 86 } \ 87 } 88 89 #define DVB_USB_DEVICE(vend, prod, props_, name_, rc) \ 90 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, \ 91 .idVendor = (vend), \ 92 .idProduct = (prod), \ 93 .driver_info = (kernel_ulong_t) &((const struct dvb_usb_driver_info) { \ 94 .props = (props_), \ 95 .name = (name_), \ 96 .rc_map = (rc), \ 97 }) 98 99 struct dvb_usb_device; 100 struct dvb_usb_adapter; 101 102 /** 103 * struct dvb_usb_driver_info - structure for carrying all needed data from the 104 * device driver to the general 105 * dvb usb routines 106 * @name: device name 107 * @rc_map: name of rc codes table 108 * @props: structure containing all device properties 109 */ 110 struct dvb_usb_driver_info { 111 const char *name; 112 const char *rc_map; 113 const struct dvb_usb_device_properties *props; 114 }; 115 116 /** 117 * struct dvb_usb_rc - structure for remote controller configuration 118 * @map_name: name of rc codes table 119 * @allowed_protos: protocol(s) supported by the driver 120 * @change_protocol: callback to change protocol 121 * @query: called to query an event from the device 122 * @interval: time in ms between two queries 123 * @driver_type: used to point if a device supports raw mode 124 * @bulk_mode: device supports bulk mode for rc (disable polling mode) 125 * @timeout: set to length of last space before raw IR goes idle 126 */ 127 struct dvb_usb_rc { 128 const char *map_name; 129 u64 allowed_protos; 130 int (*change_protocol)(struct rc_dev *dev, u64 *rc_proto); 131 int (*query) (struct dvb_usb_device *d); 132 unsigned int interval; 133 enum rc_driver_type driver_type; 134 bool bulk_mode; 135 int timeout; 136 }; 137 138 /** 139 * struct usb_data_stream_properties - usb streaming configuration for adapter 140 * @type: urb type 141 * @count: count of used urbs 142 * @endpoint: stream usb endpoint number 143 * @u: union for @bulk and @isoc 144 */ 145 struct usb_data_stream_properties { 146 #define USB_BULK 1 147 #define USB_ISOC 2 148 u8 type; 149 u8 count; 150 u8 endpoint; 151 152 union { 153 struct { 154 unsigned int buffersize; /* per URB */ 155 } bulk; 156 struct { 157 int framesperurb; 158 int framesize; 159 int interval; 160 } isoc; 161 } u; 162 }; 163 164 /** 165 * struct dvb_usb_adapter_properties - properties of dvb usb device adapter 166 * @caps: adapter capabilities 167 * @pid_filter_count: pid count of adapter pid-filter 168 * @pid_filter_ctrl: called to enable/disable pid-filter 169 * @pid_filter: called to set/unset pid for filtering 170 * @stream: adapter usb stream configuration 171 */ 172 struct dvb_usb_adapter_properties { 173 #define MAX_NO_OF_FE_PER_ADAP 3 174 #define DVB_USB_ADAP_HAS_PID_FILTER 0x01 175 #define DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF 0x02 176 #define DVB_USB_ADAP_NEED_PID_FILTERING 0x04 177 u8 caps; 178 179 u8 pid_filter_count; 180 int (*pid_filter_ctrl) (struct dvb_usb_adapter *, int); 181 int (*pid_filter) (struct dvb_usb_adapter *, int, u16, int); 182 183 struct usb_data_stream_properties stream; 184 }; 185 186 /** 187 * struct dvb_usb_device_properties - properties of a dvb-usb-device 188 * @driver_name: name of the owning driver module 189 * @owner: owner of the dvb_adapter 190 * @adapter_nr: values from the DVB_DEFINE_MOD_OPT_ADAPTER_NR() macro 191 * @bInterfaceNumber: usb interface number driver binds 192 * @size_of_priv: bytes allocated for the driver private data 193 * @generic_bulk_ctrl_endpoint: bulk control endpoint number for sent 194 * @generic_bulk_ctrl_endpoint_response: bulk control endpoint number for 195 * receive 196 * @generic_bulk_ctrl_delay: delay between bulk control sent and receive message 197 * @probe: like probe on driver model 198 * @disconnect: like disconnect on driver model 199 * @identify_state: called to determine the firmware state (cold or warm) and 200 * return possible firmware file name to be loaded 201 * @firmware: name of the firmware file to be loaded 202 * @download_firmware: called to download the firmware 203 * @i2c_algo: i2c_algorithm if the device has i2c-adapter 204 * @num_adapters: dvb usb device adapter count 205 * @get_adapter_count: called to resolve adapter count 206 * @adapter: array of all adapter properties of device 207 * @power_ctrl: called to enable/disable power of the device 208 * @read_config: called to resolve device configuration 209 * @read_mac_address: called to resolve adapter mac-address 210 * @frontend_attach: called to attach the possible frontends 211 * @frontend_detach: called to detach the possible frontends 212 * @tuner_attach: called to attach the possible tuners 213 * @tuner_detach: called to detach the possible tuners 214 * @frontend_ctrl: called to power on/off active frontend 215 * @streaming_ctrl: called to start/stop the usb streaming of adapter 216 * @init: called after adapters are created in order to finalize device 217 * configuration 218 * @exit: called when driver is unloaded 219 * @get_rc_config: called to resolve used remote controller configuration 220 * @get_stream_config: called to resolve input and output stream configuration 221 * of the adapter just before streaming is started. input stream is transport 222 * stream from the demodulator and output stream is usb stream to host. 223 */ 224 struct dvb_usb_device_properties { 225 #define MAX_NO_OF_ADAPTER_PER_DEVICE 2 226 const char *driver_name; 227 struct module *owner; 228 short *adapter_nr; 229 230 u8 bInterfaceNumber; 231 unsigned int size_of_priv; 232 u8 generic_bulk_ctrl_endpoint; 233 u8 generic_bulk_ctrl_endpoint_response; 234 unsigned int generic_bulk_ctrl_delay; 235 236 int (*probe)(struct dvb_usb_device *); 237 void (*disconnect)(struct dvb_usb_device *); 238 #define WARM 0 239 #define COLD 1 240 int (*identify_state) (struct dvb_usb_device *, const char **); 241 const char *firmware; 242 #define RECONNECTS_USB 1 243 int (*download_firmware) (struct dvb_usb_device *, 244 const struct firmware *); 245 246 struct i2c_algorithm *i2c_algo; 247 248 unsigned int num_adapters; 249 int (*get_adapter_count) (struct dvb_usb_device *); 250 struct dvb_usb_adapter_properties adapter[MAX_NO_OF_ADAPTER_PER_DEVICE]; 251 int (*power_ctrl) (struct dvb_usb_device *, int); 252 int (*read_config) (struct dvb_usb_device *d); 253 int (*read_mac_address) (struct dvb_usb_adapter *, u8 []); 254 int (*frontend_attach) (struct dvb_usb_adapter *); 255 int (*frontend_detach)(struct dvb_usb_adapter *); 256 int (*tuner_attach) (struct dvb_usb_adapter *); 257 int (*tuner_detach)(struct dvb_usb_adapter *); 258 int (*frontend_ctrl) (struct dvb_frontend *, int); 259 int (*streaming_ctrl) (struct dvb_frontend *, int); 260 int (*init) (struct dvb_usb_device *); 261 void (*exit) (struct dvb_usb_device *); 262 int (*get_rc_config) (struct dvb_usb_device *, struct dvb_usb_rc *); 263 #define DVB_USB_FE_TS_TYPE_188 0 264 #define DVB_USB_FE_TS_TYPE_204 1 265 #define DVB_USB_FE_TS_TYPE_RAW 2 266 int (*get_stream_config) (struct dvb_frontend *, u8 *, 267 struct usb_data_stream_properties *); 268 }; 269 270 /** 271 * struct usb_data_stream - generic object of an usb stream 272 * @udev: USB device 273 * @props: properties 274 * @state: state of the data stream 275 * @complete: complete callback 276 * @urb_list: list of URBs 277 * @buf_num: number of buffer allocated 278 * @buf_size: size of each buffer in buf_list 279 * @buf_list: array containing all allocate buffers for streaming 280 * @dma_addr: list of dma_addr_t for each buffer in buf_list 281 * 282 * @urbs_initialized: number of URBs initialized 283 * @urbs_submitted: number of URBs submitted 284 * @user_priv: private pointer 285 */ 286 struct usb_data_stream { 287 #define MAX_NO_URBS_FOR_DATA_STREAM 10 288 struct usb_device *udev; 289 struct usb_data_stream_properties props; 290 291 #define USB_STATE_INIT 0x00 292 #define USB_STATE_URB_BUF 0x01 293 u8 state; 294 295 void (*complete) (struct usb_data_stream *, u8 *, size_t); 296 297 struct urb *urb_list[MAX_NO_URBS_FOR_DATA_STREAM]; 298 int buf_num; 299 unsigned long buf_size; 300 u8 *buf_list[MAX_NO_URBS_FOR_DATA_STREAM]; 301 dma_addr_t dma_addr[MAX_NO_URBS_FOR_DATA_STREAM]; 302 303 int urbs_initialized; 304 int urbs_submitted; 305 306 void *user_priv; 307 }; 308 309 /** 310 * struct dvb_usb_adapter - dvb adapter object on dvb usb device 311 * @props: pointer to adapter properties 312 * @stream: adapter the usb data stream 313 * @id: index of this adapter (starting with 0) 314 * @ts_type: transport stream, input stream, type 315 * @suspend_resume_active: set when there is ongoing suspend / resume 316 * @pid_filtering: is hardware pid_filtering used or not 317 * @feed_count: current feed count 318 * @max_feed_count: maimum feed count device can handle 319 * @active_fe: active frontend 320 * @state_bits: status bits 321 * @dvb_adap: adapter dvb_adapter 322 * @dmxdev: adapter dmxdev 323 * @demux: adapter software demuxer 324 * @dvb_net: adapter dvb_net interfaces 325 * @fe: adapter frontends 326 * @fe_init: rerouted frontend-init function 327 * @fe_sleep: rerouted frontend-sleep function 328 */ 329 struct dvb_usb_adapter { 330 const struct dvb_usb_adapter_properties *props; 331 struct usb_data_stream stream; 332 u8 id; 333 u8 ts_type; 334 bool suspend_resume_active; 335 bool pid_filtering; 336 u8 feed_count; 337 u8 max_feed_count; 338 s8 active_fe; 339 #define ADAP_INIT 0 340 #define ADAP_SLEEP 1 341 #define ADAP_STREAMING 2 342 unsigned long state_bits; 343 344 /* dvb */ 345 struct dvb_adapter dvb_adap; 346 struct dmxdev dmxdev; 347 struct dvb_demux demux; 348 struct dvb_net dvb_net; 349 350 struct dvb_frontend *fe[MAX_NO_OF_FE_PER_ADAP]; 351 int (*fe_init[MAX_NO_OF_FE_PER_ADAP]) (struct dvb_frontend *); 352 int (*fe_sleep[MAX_NO_OF_FE_PER_ADAP]) (struct dvb_frontend *); 353 }; 354 355 /** 356 * struct dvb_usb_device - dvb usb device object 357 * @props: device properties 358 * @name: device name 359 * @rc_map: name of rc codes table 360 * @rc_polling_active: set when RC polling is active 361 * @intf: pointer to the device's struct usb_interface 362 * @udev: pointer to the device's struct usb_device 363 * @rc: remote controller configuration 364 * @powered: indicated whether the device is power or not 365 * @usb_mutex: mutex for usb control messages 366 * @i2c_mutex: mutex for i2c-transfers 367 * @i2c_adap: device's i2c-adapter 368 * @adapter: adapters 369 * @rc_dev: rc device for the remote control 370 * @rc_phys: rc path 371 * @rc_query_work: work for polling remote 372 * @priv: private data of the actual driver (allocate by dvb usb, size defined 373 * in size_of_priv of dvb_usb_properties). 374 */ 375 struct dvb_usb_device { 376 const struct dvb_usb_device_properties *props; 377 const char *name; 378 const char *rc_map; 379 bool rc_polling_active; 380 struct usb_interface *intf; 381 struct usb_device *udev; 382 struct dvb_usb_rc rc; 383 int powered; 384 385 /* locking */ 386 struct mutex usb_mutex; 387 388 /* i2c */ 389 struct mutex i2c_mutex; 390 struct i2c_adapter i2c_adap; 391 392 struct dvb_usb_adapter adapter[MAX_NO_OF_ADAPTER_PER_DEVICE]; 393 394 /* remote control */ 395 struct rc_dev *rc_dev; 396 char rc_phys[64]; 397 struct delayed_work rc_query_work; 398 399 void *priv; 400 }; 401 402 extern int dvb_usbv2_probe(struct usb_interface *, 403 const struct usb_device_id *); 404 extern void dvb_usbv2_disconnect(struct usb_interface *); 405 extern int dvb_usbv2_suspend(struct usb_interface *, pm_message_t); 406 extern int dvb_usbv2_resume(struct usb_interface *); 407 extern int dvb_usbv2_reset_resume(struct usb_interface *); 408 409 /* the generic read/write method for device control */ 410 extern int dvb_usbv2_generic_rw(struct dvb_usb_device *, u8 *, u16, u8 *, u16); 411 extern int dvb_usbv2_generic_write(struct dvb_usb_device *, u8 *, u16); 412 /* caller must hold lock when locked versions are called */ 413 extern int dvb_usbv2_generic_rw_locked(struct dvb_usb_device *, 414 u8 *, u16, u8 *, u16); 415 extern int dvb_usbv2_generic_write_locked(struct dvb_usb_device *, u8 *, u16); 416 417 #endif 418