Ignore:
File:
1 edited

Legend:

Unmodified
Added
Removed

  • uspace/drv/usbhid/generic/hiddev.c

    r3facf63a r60c0573  
    3737#include <usb/debug.h>
    3838#include <usb/classes/classes.h>
    39 #include <errno.h>
    40 #include <str_error.h>
    41 
    42 #include <usbhid_iface.h>
    4339
    4440#include "hiddev.h"
    … …  
    5955/*----------------------------------------------------------------------------*/
    6056
    61 static size_t usb_generic_hid_get_event_length(ddf_fun_t *fun);
    62 
    63 static int usb_generic_hid_get_event(ddf_fun_t *fun, int32_t *buffer,
    64     size_t size, size_t *act_size, unsigned int flags);
    65 
    66 /*----------------------------------------------------------------------------*/
    67 
    68 static usbhid_iface_t usb_generic_iface = {
    69         .get_event = usb_generic_hid_get_event,
    70         .get_event_length = usb_generic_hid_get_event_length
    71 };
    72 
    73 static ddf_dev_ops_t usb_generic_hid_ops = {
    74         .interfaces[USBHID_DEV_IFACE] = &usb_generic_iface
    75 };
    76 
    77 /*----------------------------------------------------------------------------*/
    78 
    79 static size_t usb_generic_hid_get_event_length(ddf_fun_t *fun)
    80 {
    81         if (fun == NULL || fun->driver_data) {
    82                 return 0;
    83         }
    84 
    85         usb_hid_dev_t *hid_dev = (usb_hid_dev_t *)fun->driver_data;
    86        
    87         return hid_dev->input_report_size;
    88 }
    89 
    90 /*----------------------------------------------------------------------------*/
    91 
    92 static int usb_generic_hid_get_event(ddf_fun_t *fun, int32_t *buffer,
    93     size_t size, size_t *act_size, unsigned int flags)
    94 {
    95         if (fun == NULL || fun->driver_data) {
    96                 return EINVAL;
    97         }
    98 
    99         usb_hid_dev_t *hid_dev = (usb_hid_dev_t *)fun->driver_data;
    100        
    101         if (hid_dev->input_report_size > size) {
    102                 return EINVAL;  // TODO: other error code
    103         }
    104        
    105         /*! @todo This should probably be atomic. */
    106         memcpy(buffer, hid_dev->input_report, hid_dev->input_report_size);
    107         *act_size = hid_dev->input_report_size;
    108        
    109         // clear the buffer so that it will not be received twice
    110         memset(hid_dev->input_report, 0, hid_dev->input_report_size);
    111        
    112         return EOK;
    113 }
    114 
    115 /*----------------------------------------------------------------------------*/
    116 
    117 static int usb_generic_hid_create_function(usb_hid_dev_t *hid_dev)
    118 {       
    119         /* Create the function exposed under /dev/devices. */
    120         /** @todo Generate numbers for the devices? */
    121         usb_log_debug("Creating DDF function %s...\n", HID_GENERIC_FUN_NAME);
    122         ddf_fun_t *fun = ddf_fun_create(hid_dev->usb_dev->ddf_dev, fun_exposed,
    123             HID_GENERIC_FUN_NAME);
    124         if (fun == NULL) {
    125                 usb_log_error("Could not create DDF function node.\n");
    126                 return ENOMEM;
    127         }
    128 
    129         int rc = ddf_fun_bind(fun);
    130         if (rc != EOK) {
    131                 usb_log_error("Could not bind DDF function: %s.\n",
    132                     str_error(rc));
    133                 ddf_fun_destroy(fun);
    134                 return rc;
    135         }
    136        
    137         fun->ops = &usb_generic_hid_ops;
    138         fun->driver_data = hid_dev;
    139        
    140         return EOK;
    141 }
    142 
    143 /*----------------------------------------------------------------------------*/
    144 
    145 int usb_generic_hid_init(usb_hid_dev_t *hid_dev)
    146 {
    147         if (hid_dev == NULL) {
    148                 return EINVAL;
    149         }
    150        
    151         return usb_generic_hid_create_function(hid_dev);
    152 }
    153 
    154 /*----------------------------------------------------------------------------*/
    155 
    15657bool usb_generic_hid_polling_callback(usb_hid_dev_t *hid_dev,
    15758    uint8_t *buffer, size_t buffer_size)
Note: See TracChangeset for help on using the changeset viewer.