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  • uspace/lib/usbdev/src/devpoll.c

    r56fd7cf rd93f5afb  
    5151        /** USB device to poll. */
    5252        usb_device_t *dev;
    53         /** Device pipe to use for polling. */
    54         size_t pipe_index;
     53        /** Device enpoint mapping to use for polling. */
     54        usb_endpoint_mapping_t *polling_mapping;
    5555        /** Size of the recieved data. */
    5656        size_t request_size;
     
    7272        const usb_device_auto_polling_t *params = &data->auto_polling;
    7373
    74         usb_pipe_t *pipe
    75             = &data->dev->pipes[data->pipe_index].pipe;
     74        usb_pipe_t *pipe = &data->polling_mapping->pipe;
    7675
    7776        if (params->debug > 0) {
    7877                const usb_endpoint_mapping_t *mapping
    79                     = &data->dev->pipes[data->pipe_index];
     78                    = data->polling_mapping;
    8079                usb_log_debug("Poll%p: started polling of `%s' - " \
    8180                    "interface %d (%s,%d,%d), %zuB/%zu.\n",
    82                     data, ddf_dev_get_name(data->dev->ddf_dev),
     81                    data, usb_device_get_name(data->dev),
    8382                    (int) mapping->interface->interface_number,
    8483                    usb_str_class(mapping->interface->interface_class),
     
    8887        }
    8988
    90         usb_pipe_start_long_transfer(pipe);
    9189        size_t failed_attempts = 0;
    9290        while (failed_attempts <= params->max_failures) {
     
    117115                         */
    118116                        usb_request_clear_endpoint_halt(
    119                             &data->dev->ctrl_pipe, pipe->endpoint_no);
     117                            usb_device_get_default_pipe(data->dev),
     118                            pipe->endpoint_no);
    120119                }
    121120
     
    148147        }
    149148
    150         usb_pipe_end_long_transfer(pipe);
    151 
    152149        const bool failed = failed_attempts > 0;
    153150
     
    159156                if (failed) {
    160157                        usb_log_error("Polling of device `%s' terminated: "
    161                             "recurring failures.\n", ddf_dev_get_name(
    162                             data->dev->ddf_dev));
     158                            "recurring failures.\n",
     159                            usb_device_get_name(data->dev));
    163160                } else {
    164161                        usb_log_debug("Polling of device `%s' terminated: "
    165                             "driver request.\n", ddf_dev_get_name(
    166                             data->dev->ddf_dev));
     162                            "driver request.\n",
     163                            usb_device_get_name(data->dev));
    167164                }
    168165        }
     
    175172}
    176173
     174
    177175/** Start automatic device polling over interrupt in pipe.
    178176 *
    179  * @warning It is up to the callback to produce delays between individual
    180  * requests.
     177 * The polling settings is copied thus it is okay to destroy the structure
     178 * after this function returns.
    181179 *
    182180 * @warning There is no guarantee when the request to the device
     
    185183 *
    186184 * @param dev Device to be periodically polled.
     185 * @param epm Endpoint mapping to use.
     186 * @param polling Polling settings.
     187 * @param request_size How many bytes to ask for in each request.
     188 * @param arg Custom argument (passed as is to the callbacks).
     189 * @return Error code.
     190 * @retval EOK New fibril polling the device was already started.
     191 */
     192static int usb_device_auto_polling_internal(usb_device_t *dev,
     193    usb_endpoint_mapping_t *epm, const usb_device_auto_polling_t *polling,
     194    size_t request_size)
     195{
     196        if ((dev == NULL) || (polling == NULL) || (polling->on_data == NULL)) {
     197                return EBADMEM;
     198        }
     199
     200        if (request_size == 0)
     201                return EINVAL;
     202
     203        if (!epm || (epm->pipe.transfer_type != USB_TRANSFER_INTERRUPT) ||
     204            (epm->pipe.direction != USB_DIRECTION_IN))
     205                return EINVAL;
     206
     207
     208        polling_data_t *polling_data = malloc(sizeof(polling_data_t));
     209        if (polling_data == NULL) {
     210                return ENOMEM;
     211        }
     212
     213        /* Fill-in the data. */
     214        polling_data->buffer = malloc(sizeof(request_size));
     215        if (polling_data->buffer == NULL) {
     216                free(polling_data);
     217                return ENOMEM;
     218        }
     219        polling_data->request_size = request_size;
     220        polling_data->dev = dev;
     221        polling_data->polling_mapping = epm;
     222
     223        /* Copy provided settings. */
     224        polling_data->auto_polling = *polling;
     225
     226        /* Negative value means use descriptor provided value. */
     227        if (polling->delay < 0) {
     228                polling_data->auto_polling.delay =
     229                    epm->descriptor->poll_interval;
     230        }
     231
     232        fid_t fibril = fibril_create(polling_fibril, polling_data);
     233        if (fibril == 0) {
     234                free(polling_data->buffer);
     235                free(polling_data);
     236                return ENOMEM;
     237        }
     238        fibril_add_ready(fibril);
     239
     240        /* Fibril launched. That fibril will free the allocated data. */
     241
     242        return EOK;
     243}
     244/** Start automatic device polling over interrupt in pipe.
     245 *
     246 * The polling settings is copied thus it is okay to destroy the structure
     247 * after this function returns.
     248 *
     249 * @warning There is no guarantee when the request to the device
     250 * will be sent for the first time (it is possible that this
     251 * first request would be executed prior to return from this function).
     252 *
     253 * @param dev Device to be periodically polled.
    187254 * @param pipe_index Index of the endpoint pipe used for polling.
     255 * @param polling Polling settings.
     256 * @param req_size How many bytes to ask for in each request.
     257 * @param arg Custom argument (passed as is to the callbacks).
     258 * @return Error code.
     259 * @retval EOK New fibril polling the device was already started.
     260 */
     261int usb_device_auto_polling(usb_device_t *usb_dev, usb_endpoint_t ep,
     262    const usb_device_auto_polling_t *polling, size_t req_size)
     263{
     264        usb_endpoint_mapping_t *epm = usb_device_get_mapped_ep(usb_dev, ep);
     265        return usb_device_auto_polling_internal(usb_dev, epm, polling, req_size);
     266}
     267
     268/** Start automatic device polling over interrupt in pipe.
     269 *
     270 * @warning It is up to the callback to produce delays between individual
     271 * requests.
     272 *
     273 * @warning There is no guarantee when the request to the device
     274 * will be sent for the first time (it is possible that this
     275 * first request would be executed prior to return from this function).
     276 *
     277 * @param dev Device to be periodically polled.
     278 * @param ep Endpoint  used for polling.
    188279 * @param callback Callback when data are available.
    189280 * @param request_size How many bytes to ask for in each request.
     281 * @param delay NUmber of ms to wait between queries, -1 to use descriptor val.
    190282 * @param terminated_callback Callback when polling is terminated.
    191283 * @param arg Custom argument (passed as is to the callbacks).
     
    193285 * @retval EOK New fibril polling the device was already started.
    194286 */
    195 int usb_device_auto_poll(usb_device_t *dev, size_t pipe_index,
    196     usb_polling_callback_t callback, size_t request_size,
     287int usb_device_auto_poll(usb_device_t *dev, usb_endpoint_t ep,
     288    usb_polling_callback_t callback, size_t request_size, int delay,
    197289    usb_polling_terminted_callback_t terminated_callback, void *arg)
    198290{
     
    200292                .debug = 1,
    201293                .auto_clear_halt = true,
    202                 .delay = 0,
     294                .delay = delay,
    203295                .max_failures = MAX_FAILED_ATTEMPTS,
    204296                .on_data = callback,
     
    208300        };
    209301
    210         return usb_device_auto_polling(dev, pipe_index, &auto_polling,
    211            request_size);
    212 }
    213 
    214 /** Start automatic device polling over interrupt in pipe.
    215  *
    216  * The polling settings is copied thus it is okay to destroy the structure
    217  * after this function returns.
    218  *
    219  * @warning There is no guarantee when the request to the device
    220  * will be sent for the first time (it is possible that this
    221  * first request would be executed prior to return from this function).
    222  *
    223  * @param dev Device to be periodically polled.
    224  * @param pipe_index Index of the endpoint pipe used for polling.
    225  * @param polling Polling settings.
    226  * @param request_size How many bytes to ask for in each request.
    227  * @param arg Custom argument (passed as is to the callbacks).
    228  * @return Error code.
    229  * @retval EOK New fibril polling the device was already started.
    230  */
    231 int usb_device_auto_polling(usb_device_t *dev, size_t pipe_index,
    232     const usb_device_auto_polling_t *polling,
    233     size_t request_size)
    234 {
    235         if ((dev == NULL) || (polling == NULL) || (polling->on_data == NULL)) {
    236                 return EBADMEM;
    237         }
    238 
    239         if (pipe_index >= dev->pipes_count || request_size == 0) {
    240                 return EINVAL;
    241         }
    242         if ((dev->pipes[pipe_index].pipe.transfer_type != USB_TRANSFER_INTERRUPT)
    243             || (dev->pipes[pipe_index].pipe.direction != USB_DIRECTION_IN)) {
    244                 return EINVAL;
    245         }
    246 
    247         polling_data_t *polling_data = malloc(sizeof(polling_data_t));
    248         if (polling_data == NULL) {
    249                 return ENOMEM;
    250         }
    251 
    252         /* Fill-in the data. */
    253         polling_data->buffer = malloc(sizeof(request_size));
    254         if (polling_data->buffer == NULL) {
    255                 free(polling_data);
    256                 return ENOMEM;
    257         }
    258         polling_data->request_size = request_size;
    259         polling_data->dev = dev;
    260         polling_data->pipe_index = pipe_index;
    261 
    262         /* Copy provided settings. */
    263         polling_data->auto_polling = *polling;
    264 
    265         /* Negative value means use descriptor provided value. */
    266         if (polling->delay < 0) {
    267                 polling_data->auto_polling.delay =
    268                     (int) dev->pipes[pipe_index].descriptor->poll_interval;
    269         }
    270 
    271         fid_t fibril = fibril_create(polling_fibril, polling_data);
    272         if (fibril == 0) {
    273                 free(polling_data->buffer);
    274                 free(polling_data);
    275                 return ENOMEM;
    276         }
    277         fibril_add_ready(fibril);
    278 
    279         /* Fibril launched. That fibril will free the allocated data. */
    280 
    281         return EOK;
     302        usb_endpoint_mapping_t *epm = usb_device_get_mapped_ep(dev, ep);
     303        return usb_device_auto_polling_internal(
     304            dev, epm, &auto_polling, request_size);
     305}
     306
     307int usb_device_auto_polling_desc(usb_device_t *usb_dev,
     308    const usb_endpoint_description_t *desc,
     309    const usb_device_auto_polling_t *polling, size_t req_size)
     310{
     311        usb_endpoint_mapping_t *epm =
     312            usb_device_get_mapped_ep_desc(usb_dev, desc);
     313        return usb_device_auto_polling_internal(usb_dev, epm, polling, req_size);
     314}
     315
     316int usb_device_auto_poll_desc(usb_device_t * usb_dev,
     317    const usb_endpoint_description_t *desc, usb_polling_callback_t callback,
     318    size_t req_size, int delay,
     319    usb_polling_terminted_callback_t terminated_callback, void *arg)
     320{
     321        const usb_device_auto_polling_t auto_polling = {
     322                .debug = 1,
     323                .auto_clear_halt = true,
     324                .delay = delay,
     325                .max_failures = MAX_FAILED_ATTEMPTS,
     326                .on_data = callback,
     327                .on_polling_end = terminated_callback,
     328                .on_error = NULL,
     329                .arg = arg,
     330        };
     331
     332        usb_endpoint_mapping_t *epm =
     333            usb_device_get_mapped_ep_desc(usb_dev, desc);
     334        return usb_device_auto_polling_internal(
     335            usb_dev, epm, &auto_polling, req_size);
    282336}
    283337
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