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  • uspace/lib/usbhost/src/iface.c

    r77ad86c ref40434  
    4040#include <usb/host/endpoint.h>
    4141#include <usb/host/hcd.h>
    42 
    43 /** Prepare generic usb_transfer_batch and schedule it.
    44  * @param fun DDF fun
    45  * @param target address and endpoint number.
    46  * @param setup_data Data to use in setup stage (Control communication type)
    47  * @param in Callback for device to host communication.
    48  * @param out Callback for host to device communication.
    49  * @param arg Callback parameter.
    50  * @param name Communication identifier (for nicer output).
    51  * @return Error code.
    52  */
    53 static inline int send_batch(
    54     ddf_fun_t *fun, usb_target_t target, usb_direction_t direction,
    55     void *data, size_t size, uint64_t setup_data,
    56     usbhc_iface_transfer_in_callback_t in,
    57     usbhc_iface_transfer_out_callback_t out, void *arg, const char* name)
    58 {
    59         assert(fun);
    60         hcd_t *hcd = fun_to_hcd(fun);
    61         assert(hcd);
    62 
    63         endpoint_t *ep = usb_endpoint_manager_find_ep(&hcd->ep_manager,
    64             target.address, target.endpoint, direction);
    65         if (ep == NULL) {
    66                 usb_log_error("Endpoint(%d:%d) not registered for %s.\n",
    67                     target.address, target.endpoint, name);
    68                 return ENOENT;
    69         }
    70 
    71         usb_log_debug2("%s %d:%d %zu(%zu).\n",
    72             name, target.address, target.endpoint, size, ep->max_packet_size);
    73 
    74         const size_t bw = bandwidth_count_usb11(
    75             ep->speed, ep->transfer_type, size, ep->max_packet_size);
    76         /* Check if we have enough bandwidth reserved */
    77         if (ep->bandwidth < bw) {
    78                 usb_log_error("Endpoint(%d:%d) %s needs %zu bw "
    79                     "but only %zu is reserved.\n",
    80                     ep->address, ep->endpoint, name, bw, ep->bandwidth);
    81                 return ENOSPC;
    82         }
    83         if (!hcd->schedule) {
    84                 usb_log_error("HCD does not implement scheduler.\n");
    85                 return ENOTSUP;
    86         }
    87 
    88         /* No private data and no private data dtor */
    89         usb_transfer_batch_t *batch =
    90             usb_transfer_batch_create(ep, data, size, setup_data,
    91             in, out, arg, fun, NULL, NULL);
    92         if (!batch) {
    93                 return ENOMEM;
    94         }
    95 
    96         const int ret = hcd->schedule(hcd, batch);
    97         if (ret != EOK)
    98                 usb_transfer_batch_destroy(batch);
    99 
    100         return ret;
    101 }
    102 
    103 /** Calls ep_add_hook upon endpoint registration.
    104  * @param ep Endpoint to be registered.
    105  * @param arg hcd_t in disguise.
    106  * @return Error code.
    107  */
    108 static int register_helper(endpoint_t *ep, void *arg)
    109 {
    110         hcd_t *hcd = arg;
    111         assert(ep);
    112         assert(hcd);
    113         if (hcd->ep_add_hook)
    114                 return hcd->ep_add_hook(hcd, ep);
    115         return EOK;
    116 }
    117 
    118 /** Calls ep_remove_hook upon endpoint removal.
    119  * @param ep Endpoint to be unregistered.
    120  * @param arg hcd_t in disguise.
    121  */
    122 static void unregister_helper(endpoint_t *ep, void *arg)
    123 {
    124         hcd_t *hcd = arg;
    125         assert(ep);
    126         assert(hcd);
    127         if (hcd->ep_remove_hook)
    128                 hcd->ep_remove_hook(hcd, ep);
    129 }
    130 
    131 /** Calls ep_remove_hook upon endpoint removal. Prints warning.
    132  * @param ep Endpoint to be unregistered.
    133  * @param arg hcd_t in disguise.
    134  */
    135 static void unregister_helper_warn(endpoint_t *ep, void *arg)
    136 {
    137         hcd_t *hcd = arg;
    138         assert(ep);
    139         assert(hcd);
    140         usb_log_warning("Endpoint %d:%d %s was left behind, removing.\n",
    141             ep->address, ep->endpoint, usb_str_direction(ep->direction));
    142         if (hcd->ep_remove_hook)
    143                 hcd->ep_remove_hook(hcd, ep);
    144 }
    145 
    146 /** Request address interface function.
    147  *
    148  * @param[in] fun DDF function that was called.
    149  * @param[in] address Pointer to preferred USB address.
    150  * @param[out] address Place to write a new address.
    151  * @param[in] strict Fail if the preferred address is not available.
    152  * @param[in] speed Speed to associate with the new default address.
    153  * @return Error code.
    154  */
    155 static int request_address(
    156     ddf_fun_t *fun, usb_address_t *address, bool strict, usb_speed_t speed)
    157 {
    158         assert(fun);
    159         hcd_t *hcd = fun_to_hcd(fun);
    160         assert(hcd);
    161         assert(address);
    162 
    163         usb_log_debug("Address request: speed: %s, address: %d, strict: %s.\n",
    164             usb_str_speed(speed), *address, strict ? "YES" : "NO");
    165         return usb_device_manager_request_address(
    166             &hcd->dev_manager, address, strict, speed);
    167 }
    168 
    169 /** Bind address interface function.
    170  *
    171  * @param[in] fun DDF function that was called.
    172  * @param[in] address Address of the device
    173  * @param[in] handle Devman handle of the device driver.
    174  * @return Error code.
    175  */
    176 static int bind_address(
    177     ddf_fun_t *fun, usb_address_t address, devman_handle_t handle)
    178 {
    179         assert(fun);
    180         hcd_t *hcd = fun_to_hcd(fun);
    181         assert(hcd);
    182 
    183         usb_log_debug("Address bind %d-%" PRIun ".\n", address, handle);
    184         return usb_device_manager_bind_address(
    185             &hcd->dev_manager, address, handle);
    186 }
     42#include "ddf_helpers.h"
    18743
    18844/** Find device handle by address interface function.
     
    19753{
    19854        assert(fun);
    199         hcd_t *hcd = fun_to_hcd(fun);
     55        hcd_t *hcd = dev_to_hcd(ddf_fun_get_dev(fun));
    20056        assert(hcd);
    20157        return usb_device_manager_get_info_by_address(
    20258            &hcd->dev_manager, address, handle, NULL);
    203 }
    204 
    205 /** Release address interface function.
    206  *
    207  * @param[in] fun DDF function that was called.
    208  * @param[in] address USB address to be released.
    209  * @return Error code.
    210  */
    211 static int release_address(ddf_fun_t *fun, usb_address_t address)
    212 {
    213         assert(fun);
    214         hcd_t *hcd = fun_to_hcd(fun);
    215         assert(hcd);
    216         usb_log_debug("Address release %d.\n", address);
    217         usb_device_manager_release_address(&hcd->dev_manager, address);
    218         usb_endpoint_manager_remove_address(&hcd->ep_manager, address,
    219             unregister_helper_warn, hcd);
    220         return EOK;
    22159}
    22260
     
    23775{
    23876        assert(fun);
    239         hcd_t *hcd = fun_to_hcd(fun);
     77        hcd_t *hcd = dev_to_hcd(ddf_fun_get_dev(fun));
    24078        assert(hcd);
    24179        const size_t size = max_packet_size;
    242         usb_speed_t speed = USB_SPEED_MAX;
    243         const int ret = usb_device_manager_get_info_by_address(
    244             &hcd->dev_manager, address, NULL, &speed);
    245         if (ret != EOK) {
    246                 return ret;
    247         }
     80        const usb_target_t target = {{.address = address, .endpoint = endpoint}};
    24881
    249         usb_log_debug("Register endpoint %d:%d %s-%s %s %zuB %ums.\n",
     82        usb_log_debug("Register endpoint %d:%d %s-%s %zuB %ums.\n",
    25083            address, endpoint, usb_str_transfer_type(transfer_type),
    251             usb_str_direction(direction), usb_str_speed(speed),
    252             max_packet_size, interval);
     84            usb_str_direction(direction), max_packet_size, interval);
    25385
    254         return usb_endpoint_manager_add_ep(&hcd->ep_manager, address, endpoint,
    255             direction, transfer_type, speed, max_packet_size, size,
    256             register_helper, hcd);
     86        return hcd_add_ep(hcd, target, direction, transfer_type,
     87            max_packet_size, size);
    25788}
    25889
     
    269100{
    270101        assert(fun);
    271         hcd_t *hcd = fun_to_hcd(fun);
     102        hcd_t *hcd = dev_to_hcd(ddf_fun_get_dev(fun));
    272103        assert(hcd);
     104        const usb_target_t target = {{.address = address, .endpoint = endpoint}};
    273105        usb_log_debug("Unregister endpoint %d:%d %s.\n",
    274106            address, endpoint, usb_str_direction(direction));
    275         return usb_endpoint_manager_remove_ep(&hcd->ep_manager, address,
    276             endpoint, direction, unregister_helper, hcd);
     107        return hcd_remove_ep(hcd, target, direction);
    277108}
    278109
     
    291122    void *arg)
    292123{
    293         return send_batch(fun, target, USB_DIRECTION_IN, data, size,
    294             setup_data, callback, NULL, arg, "READ");
     124        return hcd_send_batch(dev_to_hcd(ddf_fun_get_dev(fun)), target,
     125            USB_DIRECTION_IN, data, size, setup_data, callback, NULL, arg,
     126            "READ");
    295127}
    296128
     
    309141    usbhc_iface_transfer_out_callback_t callback, void *arg)
    310142{
    311         return send_batch(fun, target, USB_DIRECTION_OUT, (uint8_t*)data, size,
    312             setup_data, NULL, callback, arg, "WRITE");
     143        return hcd_send_batch(dev_to_hcd(ddf_fun_get_dev(fun)),
     144            target, USB_DIRECTION_OUT, (uint8_t*)data, size, setup_data, NULL,
     145            callback, arg, "WRITE");
    313146}
    314147
    315148/** usbhc Interface implementation using hcd_t from libusbhost library. */
    316149usbhc_iface_t hcd_iface = {
    317         .request_address = request_address,
    318         .bind_address = bind_address,
    319150        .get_handle = find_by_address,
    320         .release_address = release_address,
    321151
    322152        .register_endpoint = register_endpoint,
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