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 * structure for carrying all needed data from the device driver to the general 104 * dvb usb routines 105 * @name: device name 106 * @rc_map: name of rc codes table 107 * @props: structure containing all device properties 108 */ 109 struct dvb_usb_driver_info { 110 const char *name; 111 const char *rc_map; 112 const struct dvb_usb_device_properties *props; 113 }; 114 115 /** 116 * structure for remote controller configuration 117 * @map_name: name of rc codes table 118 * @allowed_protos: protocol(s) supported by the driver 119 * @change_protocol: callback to change protocol 120 * @query: called to query an event from the device 121 * @interval: time in ms between two queries 122 * @driver_type: used to point if a device supports raw mode 123 * @bulk_mode: device supports bulk mode for rc (disable polling mode) 124 * @timeout: set to length of last space before raw IR goes idle 125 */ 126 struct dvb_usb_rc { 127 const char *map_name; 128 u64 allowed_protos; 129 int (*change_protocol)(struct rc_dev *dev, u64 *rc_proto); 130 int (*query) (struct dvb_usb_device *d); 131 unsigned int interval; 132 enum rc_driver_type driver_type; 133 bool bulk_mode; 134 int timeout; 135 }; 136 137 /** 138 * usb streaming configuration for adapter 139 * @type: urb type 140 * @count: count of used urbs 141 * @endpoint: stream usb endpoint number 142 */ 143 struct usb_data_stream_properties { 144 #define USB_BULK 1 145 #define USB_ISOC 2 146 u8 type; 147 u8 count; 148 u8 endpoint; 149 150 union { 151 struct { 152 unsigned int buffersize; /* per URB */ 153 } bulk; 154 struct { 155 int framesperurb; 156 int framesize; 157 int interval; 158 } isoc; 159 } u; 160 }; 161 162 /** 163 * properties of dvb usb device adapter 164 * @caps: adapter capabilities 165 * @pid_filter_count: pid count of adapter pid-filter 166 * @pid_filter_ctrl: called to enable/disable pid-filter 167 * @pid_filter: called to set/unset pid for filtering 168 * @stream: adapter usb stream configuration 169 */ 170 #define MAX_NO_OF_FE_PER_ADAP 3 171 struct dvb_usb_adapter_properties { 172 #define DVB_USB_ADAP_HAS_PID_FILTER 0x01 173 #define DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF 0x02 174 #define DVB_USB_ADAP_NEED_PID_FILTERING 0x04 175 u8 caps; 176 177 u8 pid_filter_count; 178 int (*pid_filter_ctrl) (struct dvb_usb_adapter *, int); 179 int (*pid_filter) (struct dvb_usb_adapter *, int, u16, int); 180 181 struct usb_data_stream_properties stream; 182 }; 183 184 /** 185 * struct dvb_usb_device_properties - properties of a dvb-usb-device 186 * @driver_name: name of the owning driver module 187 * @owner: owner of the dvb_adapter 188 * @adapter_nr: values from the DVB_DEFINE_MOD_OPT_ADAPTER_NR() macro 189 * @bInterfaceNumber: usb interface number driver binds 190 * @size_of_priv: bytes allocated for the driver private data 191 * @generic_bulk_ctrl_endpoint: bulk control endpoint number for sent 192 * @generic_bulk_ctrl_endpoint_response: bulk control endpoint number for 193 * receive 194 * @generic_bulk_ctrl_delay: delay between bulk control sent and receive message 195 * @probe: like probe on driver model 196 * @disconnect: like disconnect on driver model 197 * @identify_state: called to determine the firmware state (cold or warm) and 198 * return possible firmware file name to be loaded 199 * @firmware: name of the firmware file to be loaded 200 * @download_firmware: called to download the firmware 201 * @i2c_algo: i2c_algorithm if the device has i2c-adapter 202 * @num_adapters: dvb usb device adapter count 203 * @get_adapter_count: called to resolve adapter count 204 * @adapter: array of all adapter properties of device 205 * @power_ctrl: called to enable/disable power of the device 206 * @read_config: called to resolve device configuration 207 * @read_mac_address: called to resolve adapter mac-address 208 * @frontend_attach: called to attach the possible frontends 209 * @frontend_detach: called to detach the possible frontends 210 * @tuner_attach: called to attach the possible tuners 211 * @frontend_ctrl: called to power on/off active frontend 212 * @streaming_ctrl: called to start/stop the usb streaming of adapter 213 * @init: called after adapters are created in order to finalize device 214 * configuration 215 * @exit: called when driver is unloaded 216 * @get_rc_config: called to resolve used remote controller configuration 217 * @get_stream_config: called to resolve input and output stream configuration 218 * of the adapter just before streaming is started. input stream is transport 219 * stream from the demodulator and output stream is usb stream to host. 220 */ 221 #define MAX_NO_OF_ADAPTER_PER_DEVICE 2 222 struct dvb_usb_device_properties { 223 const char *driver_name; 224 struct module *owner; 225 short *adapter_nr; 226 227 u8 bInterfaceNumber; 228 unsigned int size_of_priv; 229 u8 generic_bulk_ctrl_endpoint; 230 u8 generic_bulk_ctrl_endpoint_response; 231 unsigned int generic_bulk_ctrl_delay; 232 233 int (*probe)(struct dvb_usb_device *); 234 void (*disconnect)(struct dvb_usb_device *); 235 #define WARM 0 236 #define COLD 1 237 int (*identify_state) (struct dvb_usb_device *, const char **); 238 const char *firmware; 239 #define RECONNECTS_USB 1 240 int (*download_firmware) (struct dvb_usb_device *, 241 const struct firmware *); 242 243 struct i2c_algorithm *i2c_algo; 244 245 unsigned int num_adapters; 246 int (*get_adapter_count) (struct dvb_usb_device *); 247 struct dvb_usb_adapter_properties adapter[MAX_NO_OF_ADAPTER_PER_DEVICE]; 248 int (*power_ctrl) (struct dvb_usb_device *, int); 249 int (*read_config) (struct dvb_usb_device *d); 250 int (*read_mac_address) (struct dvb_usb_adapter *, u8 []); 251 int (*frontend_attach) (struct dvb_usb_adapter *); 252 int (*frontend_detach)(struct dvb_usb_adapter *); 253 int (*tuner_attach) (struct dvb_usb_adapter *); 254 int (*tuner_detach)(struct dvb_usb_adapter *); 255 int (*frontend_ctrl) (struct dvb_frontend *, int); 256 int (*streaming_ctrl) (struct dvb_frontend *, int); 257 int (*init) (struct dvb_usb_device *); 258 void (*exit) (struct dvb_usb_device *); 259 int (*get_rc_config) (struct dvb_usb_device *, struct dvb_usb_rc *); 260 #define DVB_USB_FE_TS_TYPE_188 0 261 #define DVB_USB_FE_TS_TYPE_204 1 262 #define DVB_USB_FE_TS_TYPE_RAW 2 263 int (*get_stream_config) (struct dvb_frontend *, u8 *, 264 struct usb_data_stream_properties *); 265 }; 266 267 /** 268 * generic object of an usb stream 269 * @buf_num: number of buffer allocated 270 * @buf_size: size of each buffer in buf_list 271 * @buf_list: array containing all allocate buffers for streaming 272 * @dma_addr: list of dma_addr_t for each buffer in buf_list 273 * 274 * @urbs_initialized: number of URBs initialized 275 * @urbs_submitted: number of URBs submitted 276 */ 277 #define MAX_NO_URBS_FOR_DATA_STREAM 10 278 struct usb_data_stream { 279 struct usb_device *udev; 280 struct usb_data_stream_properties props; 281 282 #define USB_STATE_INIT 0x00 283 #define USB_STATE_URB_BUF 0x01 284 u8 state; 285 286 void (*complete) (struct usb_data_stream *, u8 *, size_t); 287 288 struct urb *urb_list[MAX_NO_URBS_FOR_DATA_STREAM]; 289 int buf_num; 290 unsigned long buf_size; 291 u8 *buf_list[MAX_NO_URBS_FOR_DATA_STREAM]; 292 dma_addr_t dma_addr[MAX_NO_URBS_FOR_DATA_STREAM]; 293 294 int urbs_initialized; 295 int urbs_submitted; 296 297 void *user_priv; 298 }; 299 300 /** 301 * dvb adapter object on dvb usb device 302 * @props: pointer to adapter properties 303 * @stream: adapter the usb data stream 304 * @id: index of this adapter (starting with 0) 305 * @ts_type: transport stream, input stream, type 306 * @suspend_resume_active: set when there is ongoing suspend / resume 307 * @pid_filtering: is hardware pid_filtering used or not 308 * @feed_count: current feed count 309 * @max_feed_count: maimum feed count device can handle 310 * @dvb_adap: adapter dvb_adapter 311 * @dmxdev: adapter dmxdev 312 * @demux: adapter software demuxer 313 * @dvb_net: adapter dvb_net interfaces 314 * @sync_mutex: mutex used to sync control and streaming of the adapter 315 * @fe: adapter frontends 316 * @fe_init: rerouted frontend-init function 317 * @fe_sleep: rerouted frontend-sleep function 318 */ 319 struct dvb_usb_adapter { 320 const struct dvb_usb_adapter_properties *props; 321 struct usb_data_stream stream; 322 u8 id; 323 u8 ts_type; 324 bool suspend_resume_active; 325 bool pid_filtering; 326 u8 feed_count; 327 u8 max_feed_count; 328 s8 active_fe; 329 #define ADAP_INIT 0 330 #define ADAP_SLEEP 1 331 #define ADAP_STREAMING 2 332 unsigned long state_bits; 333 334 /* dvb */ 335 struct dvb_adapter dvb_adap; 336 struct dmxdev dmxdev; 337 struct dvb_demux demux; 338 struct dvb_net dvb_net; 339 340 struct dvb_frontend *fe[MAX_NO_OF_FE_PER_ADAP]; 341 int (*fe_init[MAX_NO_OF_FE_PER_ADAP]) (struct dvb_frontend *); 342 int (*fe_sleep[MAX_NO_OF_FE_PER_ADAP]) (struct dvb_frontend *); 343 }; 344 345 /** 346 * dvb usb device object 347 * @props: device properties 348 * @name: device name 349 * @rc_map: name of rc codes table 350 * @rc_polling_active: set when RC polling is active 351 * @intf: pointer to the device's struct usb_interface 352 * @udev: pointer to the device's struct usb_device 353 * @rc: remote controller configuration 354 * @powered: indicated whether the device is power or not 355 * @usb_mutex: mutex for usb control messages 356 * @i2c_mutex: mutex for i2c-transfers 357 * @i2c_adap: device's i2c-adapter 358 * @rc_dev: rc device for the remote control 359 * @rc_query_work: work for polling remote 360 * @priv: private data of the actual driver (allocate by dvb usb, size defined 361 * in size_of_priv of dvb_usb_properties). 362 */ 363 struct dvb_usb_device { 364 const struct dvb_usb_device_properties *props; 365 const char *name; 366 const char *rc_map; 367 bool rc_polling_active; 368 struct usb_interface *intf; 369 struct usb_device *udev; 370 struct dvb_usb_rc rc; 371 int powered; 372 373 /* locking */ 374 struct mutex usb_mutex; 375 376 /* i2c */ 377 struct mutex i2c_mutex; 378 struct i2c_adapter i2c_adap; 379 380 struct dvb_usb_adapter adapter[MAX_NO_OF_ADAPTER_PER_DEVICE]; 381 382 /* remote control */ 383 struct rc_dev *rc_dev; 384 char rc_phys[64]; 385 struct delayed_work rc_query_work; 386 387 void *priv; 388 }; 389 390 extern int dvb_usbv2_probe(struct usb_interface *, 391 const struct usb_device_id *); 392 extern void dvb_usbv2_disconnect(struct usb_interface *); 393 extern int dvb_usbv2_suspend(struct usb_interface *, pm_message_t); 394 extern int dvb_usbv2_resume(struct usb_interface *); 395 extern int dvb_usbv2_reset_resume(struct usb_interface *); 396 397 /* the generic read/write method for device control */ 398 extern int dvb_usbv2_generic_rw(struct dvb_usb_device *, u8 *, u16, u8 *, u16); 399 extern int dvb_usbv2_generic_write(struct dvb_usb_device *, u8 *, u16); 400 /* caller must hold lock when locked versions are called */ 401 extern int dvb_usbv2_generic_rw_locked(struct dvb_usb_device *, 402 u8 *, u16, u8 *, u16); 403 extern int dvb_usbv2_generic_write_locked(struct dvb_usb_device *, u8 *, u16); 404 405 #endif 406