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add usb host stack(class not release completely)

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sakimusu
2022-02-01 23:02:59 +08:00
parent eff1268057
commit b44617212b
11 changed files with 2796 additions and 0 deletions
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270
class/hid/usbh_hid.c Normal file
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/**
* @file usbh_hid.c
*
* Copyright (c) 2022 sakumisu
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
*/
#include "usbh_core.h"
#include "usbh_hid.h"
#define DEV_FORMAT "/dev/input%d"
#define DEV_NAMELEN 16
static uint32_t g_devinuse = 0;
/****************************************************************************
* Name: usbh_hid_devno_alloc
*
* Description:
* Allocate a unique /dev/hid[n] minor number in the range 0-31.
*
****************************************************************************/
static int usbh_hid_devno_alloc(struct usbh_hid *priv)
{
uint32_t flags;
int devno;
flags = usb_osal_enter_critical_section();
for (devno = 0; devno < 32; devno++) {
uint32_t bitno = 1 << devno;
if ((g_devinuse & bitno) == 0) {
g_devinuse |= bitno;
priv->minor = devno;
usb_osal_leave_critical_section(flags);
return 0;
}
}
usb_osal_leave_critical_section(flags);
return -EMFILE;
}
/****************************************************************************
* Name: usbh_hid_devno_free
*
* Description:
* Free a /dev/hid[n] minor number so that it can be used.
*
****************************************************************************/
static void usbh_hid_devno_free(struct usbh_hid *priv)
{
int devno = priv->minor;
if (devno >= 0 && devno < 32) {
uint32_t flags = usb_osal_enter_critical_section();
g_devinuse &= ~(1 << devno);
usb_osal_leave_critical_section(flags);
}
}
/****************************************************************************
* Name: usbh_hid_mkdevname
*
* Description:
* Format a /dev/hid[n] device name given a minor number.
*
****************************************************************************/
static inline void usbh_hid_mkdevname(struct usbh_hid *priv, char *devname)
{
snprintf(devname, DEV_NAMELEN, DEV_FORMAT, priv->minor);
}
int usbh_hid_get_report_descriptor(struct usbh_hubport *hport, uint8_t intf, uint8_t *buffer)
{
struct usb_setup_packet *setup;
struct usbh_hid *hid_class = (struct usbh_hid *)hport->config.intf[intf].priv;
setup = hid_class->setup;
if (hid_class->intf != intf) {
return -1;
}
setup->bmRequestType = USB_REQUEST_DIR_IN | USB_REQUEST_STANDARD | USB_REQUEST_RECIPIENT_INTERFACE;
setup->bRequest = USB_REQUEST_GET_DESCRIPTOR;
setup->wValue = HID_DESCRIPTOR_TYPE_HID_REPORT << 8;
setup->wIndex = intf;
setup->wLength = 128;
return usbh_control_transfer(hport->ep0, setup, buffer);
}
int usbh_hid_set_idle(struct usbh_hubport *hport, uint8_t intf, uint8_t report_id, uint8_t duration)
{
int ret;
struct usb_setup_packet *setup;
struct usbh_hid *hid_class = (struct usbh_hid *)hport->config.intf[intf].priv;
setup = hid_class->setup;
if (hid_class->intf != intf) {
return -1;
}
setup->bmRequestType = USB_REQUEST_DIR_OUT | USB_REQUEST_CLASS | USB_REQUEST_RECIPIENT_INTERFACE;
setup->bRequest = HID_REQUEST_SET_IDLE;
setup->wValue = report_id;
setup->wIndex = (duration << 8) | intf;
setup->wLength = 0;
ret = usbh_control_transfer(hport->ep0, setup, NULL);
if (ret < 0) {
return ret;
}
return 0;
}
int usbh_hid_get_idle(struct usbh_hubport *hport, uint8_t intf, uint8_t *buffer)
{
int ret;
struct usb_setup_packet *setup;
struct usbh_hid *hid_class = (struct usbh_hid *)hport->config.intf[intf].priv;
setup = hid_class->setup;
if (hid_class->intf != intf) {
return -1;
}
setup->bmRequestType = USB_REQUEST_DIR_IN | USB_REQUEST_CLASS | USB_REQUEST_RECIPIENT_INTERFACE;
setup->bRequest = HID_REQUEST_GET_IDLE;
setup->wValue = 0;
setup->wIndex = intf;
setup->wLength = 1;
ret = usbh_control_transfer(hport->ep0, setup, buffer);
if (ret < 0) {
return ret;
}
return 0;
}
USB_NOCACHE_RAM_SECTION uint8_t report_buffer[128];
void usbh_hid_callback(void *arg, ssize_t nbytes)
{
printf("nbytes:%d\r\n", nbytes);
}
int usbh_hid_connect(struct usbh_hubport *hport, uint8_t intf)
{
struct usbh_endpoint_cfg ep_cfg = { 0 };
struct usb_endpoint_descriptor *ep_desc;
char devname[DEV_NAMELEN];
int ret;
struct usbh_hid *hid_class = usb_malloc(sizeof(struct usbh_hid));
if (hid_class == NULL) {
return -1;
}
memset(hid_class, 0, sizeof(struct usbh_hid));
usbh_hid_devno_alloc(hid_class);
usbh_hid_mkdevname(hid_class, devname);
hport->config.intf[intf].priv = hid_class;
hid_class->setup = usb_iomalloc(sizeof(struct usb_setup_packet));
hid_class->intf = intf;
ret = usbh_hid_set_idle(hport, intf, 0, 0);
if (ret < 0) {
return ret;
}
ret = usbh_hid_get_report_descriptor(hport, intf, report_buffer);
if (ret < 0) {
return ret;
}
for (uint8_t i = 0; i < hport->config.intf[intf].intf_desc.bNumEndpoints; i++) {
ep_desc = &hport->config.intf[intf].ep[i].ep_desc;
ep_cfg.ep_addr = ep_desc->bEndpointAddress;
ep_cfg.ep_type = ep_desc->bmAttributes & USB_ENDPOINT_TYPE_MASK;
ep_cfg.ep_mps = ep_desc->wMaxPacketSize;
ep_cfg.ep_interval = ep_desc->bInterval;
ep_cfg.hport = hport;
if (ep_desc->bEndpointAddress & 0x80) {
usbh_ep_alloc(&hid_class->intin, &ep_cfg);
} else {
usbh_ep_alloc(&hid_class->intout, &ep_cfg);
}
}
USB_LOG_INFO("Register HID Class:%s\r\n", devname);
ret = usbh_ep_intr_async_transfer(hid_class->intin, report_buffer, 128, usbh_hid_callback, NULL);
if (ret < 0) {
return ret;
}
#if 0
ret = usbh_ep_intr_transfer(hid_class->intin, report_buffer, 128);
if (ret < 0) {
return ret;
}
USB_LOG_INFO("recv len:%d\r\n", ret);
#endif
return 0;
}
int usbh_hid_disconnect(struct usbh_hubport *hport, uint8_t intf)
{
char devname[DEV_NAMELEN];
int ret = 0;
struct usbh_hid *hid_class = (struct usbh_hid *)hport->config.intf[intf].priv;
if (hid_class) {
usbh_hid_devno_free(hid_class);
usbh_hid_mkdevname(hid_class, devname);
if (hid_class->intin) {
ret = usb_ep_cancel(hid_class->intin);
if (ret < 0) {
}
usbh_ep_free(hid_class->intin);
}
if (hid_class->intout) {
ret = usb_ep_cancel(hid_class->intout);
if (ret < 0) {
}
usbh_ep_free(hid_class->intout);
}
if (hid_class->setup)
usb_iofree(hid_class->setup);
usb_free(hid_class);
hport->config.intf[intf].priv = NULL;
USB_LOG_INFO("Unregister HID Class:%s\r\n", devname);
}
return ret;
}
const struct usbh_class_driver hid_class_driver = {
.driver_name = "hid",
.connect = usbh_hid_connect,
.disconnect = usbh_hid_disconnect
};

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class/hid/usbh_hid.h Normal file
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/**
* @file usbh_hid.h
*
* Copyright (c) 2022 sakumisu
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
*/
#ifndef _USBH_HID_H
#define _USBH_HID_H
#include "usb_hid.h"
struct usbh_hid {
struct usb_setup_packet *setup;
uint8_t intf; /* interface number */
uint8_t minor;
usbh_epinfo_t intin; /* INTR IN endpoint */
usbh_epinfo_t intout; /* INTR OUT endpoint */
};
extern const struct usbh_class_driver hid_class_driver;
#ifdef __cplusplus
extern "C" {
#endif
#ifdef __cplusplus
}
#endif
#endif