| 1 | /*
|
|---|
| 2 | * Copyright (c) 2011 Vojtech Horky
|
|---|
| 3 | * All rights reserved.
|
|---|
| 4 | *
|
|---|
| 5 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 6 | * modification, are permitted provided that the following conditions
|
|---|
| 7 | * are met:
|
|---|
| 8 | *
|
|---|
| 9 | * - Redistributions of source code must retain the above copyright
|
|---|
| 10 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 11 | * - Redistributions in binary form must reproduce the above copyright
|
|---|
| 12 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 13 | * documentation and/or other materials provided with the distribution.
|
|---|
| 14 | * - The name of the author may not be used to endorse or promote products
|
|---|
| 15 | * derived from this software without specific prior written permission.
|
|---|
| 16 | *
|
|---|
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|---|
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|---|
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|---|
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|---|
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|---|
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|---|
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|---|
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|---|
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|---|
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|---|
| 27 | */
|
|---|
| 28 |
|
|---|
| 29 | /** @addtogroup drvusbfallback
|
|---|
| 30 | * @{
|
|---|
| 31 | */
|
|---|
| 32 | /**
|
|---|
| 33 | * @file
|
|---|
| 34 | * Main routines of USB fallback driver.
|
|---|
| 35 | */
|
|---|
| 36 | #include <usb/dev/driver.h>
|
|---|
| 37 | #include <usb/debug.h>
|
|---|
| 38 | #include <errno.h>
|
|---|
| 39 | #include <str_error.h>
|
|---|
| 40 |
|
|---|
| 41 | #define NAME "usbflbk"
|
|---|
| 42 |
|
|---|
| 43 | /** Callback when new device is attached and recognized by DDF.
|
|---|
| 44 | *
|
|---|
| 45 | * @param dev Representation of a generic DDF device.
|
|---|
| 46 | * @return Error code.
|
|---|
| 47 | */
|
|---|
| 48 | static int usbfallback_device_add(usb_device_t *dev)
|
|---|
| 49 | {
|
|---|
| 50 | int rc;
|
|---|
| 51 | const char *fun_name = "ctl";
|
|---|
| 52 |
|
|---|
| 53 | ddf_fun_t *ctl_fun = ddf_fun_create(dev->ddf_dev, fun_exposed,
|
|---|
| 54 | fun_name);
|
|---|
| 55 | if (ctl_fun == NULL) {
|
|---|
| 56 | usb_log_error("Failed to create control function.\n");
|
|---|
| 57 | return ENOMEM;
|
|---|
| 58 | }
|
|---|
| 59 | rc = ddf_fun_bind(ctl_fun);
|
|---|
| 60 | if (rc != EOK) {
|
|---|
| 61 | usb_log_error("Failed to bind control function: %s.\n",
|
|---|
| 62 | str_error(rc));
|
|---|
| 63 | return rc;
|
|---|
| 64 | }
|
|---|
| 65 |
|
|---|
| 66 | dev->driver_data = ctl_fun;
|
|---|
| 67 |
|
|---|
| 68 | usb_log_info("Pretending to control %s `%s'" \
|
|---|
| 69 | " (node `%s', handle %" PRIun ").\n",
|
|---|
| 70 | dev->interface_no < 0 ? "device" : "interface",
|
|---|
| 71 | dev->ddf_dev->name, fun_name, dev->ddf_dev->handle);
|
|---|
| 72 |
|
|---|
| 73 | return EOK;
|
|---|
| 74 | }
|
|---|
| 75 |
|
|---|
| 76 | /** Callback when new device is removed and recognized as gone by DDF.
|
|---|
| 77 | *
|
|---|
| 78 | * @param dev Representation of a generic DDF device.
|
|---|
| 79 | * @return Error code.
|
|---|
| 80 | */
|
|---|
| 81 | static int usbfallback_device_gone(usb_device_t *dev)
|
|---|
| 82 | {
|
|---|
| 83 | assert(dev);
|
|---|
| 84 | ddf_fun_t *ctl_fun = dev->driver_data;
|
|---|
| 85 | const int ret = ddf_fun_unbind(ctl_fun);
|
|---|
| 86 | if (ret != EOK) {
|
|---|
| 87 | usb_log_error("Failed to unbind %s.\n", ctl_fun->name);
|
|---|
| 88 | return ret;
|
|---|
| 89 | }
|
|---|
| 90 | ddf_fun_destroy(ctl_fun);
|
|---|
| 91 | dev->driver_data = NULL;
|
|---|
| 92 |
|
|---|
| 93 | return EOK;
|
|---|
| 94 | }
|
|---|
| 95 | /** USB fallback driver ops. */
|
|---|
| 96 | static usb_driver_ops_t usbfallback_driver_ops = {
|
|---|
| 97 | .device_add = usbfallback_device_add,
|
|---|
| 98 | .device_gone = usbfallback_device_gone,
|
|---|
| 99 | };
|
|---|
| 100 |
|
|---|
| 101 | /** USB fallback driver. */
|
|---|
| 102 | static usb_driver_t usbfallback_driver = {
|
|---|
| 103 | .name = NAME,
|
|---|
| 104 | .ops = &usbfallback_driver_ops,
|
|---|
| 105 | .endpoints = NULL
|
|---|
| 106 | };
|
|---|
| 107 |
|
|---|
| 108 | int main(int argc, char *argv[])
|
|---|
| 109 | {
|
|---|
| 110 | usb_log_enable(USB_LOG_LEVEL_DEFAULT, NAME);
|
|---|
| 111 |
|
|---|
| 112 | return usb_driver_main(&usbfallback_driver);
|
|---|
| 113 | }
|
|---|
| 114 |
|
|---|
| 115 | /**
|
|---|
| 116 | * @}
|
|---|
| 117 | */
|
|---|
