support usb ble host
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sakumisu
255
class/wireless/usbh_bluetooth.c
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255
class/wireless/usbh_bluetooth.c
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/*
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* Copyright (c) 2024, sakumisu
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "usbh_core.h"
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#include "usbh_bluetooth.h"
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#define DEV_FORMAT "/dev/bluetooth"
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static struct usbh_bluetooth g_bluetooth_class;
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USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_bluetooth_cmd_buf[512];
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USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_bluetooth_event_buf[512];
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USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_bluetooth_acl_buf[1024];
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static int usbh_bluetooth_connect(struct usbh_hubport *hport, uint8_t intf)
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{
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struct usb_endpoint_descriptor *ep_desc;
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int ret;
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uint8_t mult;
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uint16_t mps;
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struct usbh_bluetooth *bluetooth_class = &g_bluetooth_class;
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if (hport->config.config_desc.bNumInterfaces == (intf + 1)) {
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return 0;
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}
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memset(bluetooth_class, 0, sizeof(struct usbh_bluetooth));
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bluetooth_class->hport = hport;
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bluetooth_class->intf = intf;
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bluetooth_class->num_of_intf_altsettings = hport->config.intf[intf + 1].altsetting_num;
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hport->config.intf[intf].priv = bluetooth_class;
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for (uint8_t i = 0; i < hport->config.intf[intf].altsetting[0].intf_desc.bNumEndpoints; i++) {
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ep_desc = &hport->config.intf[intf].altsetting[0].ep[i].ep_desc;
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if (USB_GET_ENDPOINT_TYPE(ep_desc->bmAttributes) == USB_ENDPOINT_TYPE_INTERRUPT) {
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if (ep_desc->bEndpointAddress & 0x80) {
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USBH_EP_INIT(bluetooth_class->intin, ep_desc);
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} else {
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return -USB_ERR_NOTSUPP;
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}
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} else {
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if (ep_desc->bEndpointAddress & 0x80) {
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USBH_EP_INIT(bluetooth_class->bulkin, ep_desc);
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} else {
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USBH_EP_INIT(bluetooth_class->bulkout, ep_desc);
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}
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}
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}
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USB_LOG_INFO("Num of altsettings:%u\r\n", bluetooth_class->num_of_intf_altsettings);
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for (uint8_t i = 0; i < bluetooth_class->num_of_intf_altsettings; i++) {
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USB_LOG_INFO("Altsetting:%u\r\n", i);
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for (uint8_t j = 0; j < hport->config.intf[intf + 1].altsetting[i].intf_desc.bNumEndpoints; j++) {
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ep_desc = &bluetooth_class->hport->config.intf[intf + 1].altsetting[i].ep[j].ep_desc;
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mult = USB_GET_MULT(ep_desc->wMaxPacketSize);
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mps = USB_GET_MAXPACKETSIZE(ep_desc->wMaxPacketSize);
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USB_LOG_INFO("\tEp=%02x Attr=%02u Mps=%d Interval=%02u Mult=%02u\r\n",
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ep_desc->bEndpointAddress,
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ep_desc->bmAttributes,
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mps,
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ep_desc->bInterval,
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mult);
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}
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}
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ret = usbh_set_interface(hport, intf, 0);
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if (ret < 0) {
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return ret;
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}
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USB_LOG_INFO("Bluetooth select altsetting 0\r\n");
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snprintf(hport->config.intf[intf].devname, CONFIG_USBHOST_DEV_NAMELEN, DEV_FORMAT);
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USB_LOG_INFO("Register Bluetooth Class:%s\r\n", hport->config.intf[intf].devname);
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usbh_bluetooth_run(bluetooth_class);
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return ret;
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}
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static int usbh_bluetooth_disconnect(struct usbh_hubport *hport, uint8_t intf)
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{
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int ret = 0;
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struct usbh_bluetooth *bluetooth_class = (struct usbh_bluetooth *)hport->config.intf[intf].priv;
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if (hport->config.config_desc.bNumInterfaces == (intf + 1)) {
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return 0;
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}
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if (bluetooth_class) {
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if (bluetooth_class->bulkin) {
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usbh_kill_urb(&bluetooth_class->bulkin_urb);
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}
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if (bluetooth_class->bulkout) {
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usbh_kill_urb(&bluetooth_class->bulkout_urb);
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}
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if (bluetooth_class->intin) {
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usbh_kill_urb(&bluetooth_class->intin_urb);
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}
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// if (bluetooth_class->isoin) {
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// usbh_kill_urb(&bluetooth_class->isoin_urb);
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// }
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// if (bluetooth_class->isoin) {
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// usbh_kill_urb(&bluetooth_class->isoinin_urb);
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// }
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if (hport->config.intf[intf].devname[0] != '\0') {
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USB_LOG_INFO("Unregister Bluetooth Class:%s\r\n", hport->config.intf[intf].devname);
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usbh_bluetooth_stop(bluetooth_class);
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}
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memset(bluetooth_class, 0, sizeof(struct usbh_bluetooth));
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}
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return ret;
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}
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int usbh_bluetooth_hci_cmd(struct usbh_bluetooth *bluetooth_class, uint8_t *buffer, uint32_t buflen)
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{
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struct usb_setup_packet *setup = bluetooth_class->hport->setup;
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uint16_t opcode = (((uint16_t)buffer[1] << 8) | (uint16_t)buffer[0]);
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USB_LOG_DBG("opcode:%04x, param len:%d\r\n", opcode, buffer[2]);
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setup->bmRequestType = USB_REQUEST_DIR_OUT | USB_REQUEST_CLASS | USB_REQUEST_RECIPIENT_DEVICE;
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setup->bRequest = 0x00;
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setup->wValue = 0;
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setup->wIndex = bluetooth_class->intf;
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setup->wLength = buflen;
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memcpy(g_bluetooth_cmd_buf, buffer, buflen);
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return usbh_control_transfer(bluetooth_class->hport, setup, g_bluetooth_cmd_buf);
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}
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int usbh_bluetooth_hci_acl_out(struct usbh_bluetooth *bluetooth_class, uint8_t *buffer, uint32_t buflen)
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{
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int ret;
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struct usbh_urb *urb = &bluetooth_class->bulkout_urb;
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usbh_bulk_urb_fill(urb, bluetooth_class->hport, bluetooth_class->bulkout, buffer, buflen, USB_OSAL_WAITING_FOREVER, NULL, NULL);
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ret = usbh_submit_urb(urb);
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if (ret == 0) {
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ret = urb->actual_length;
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}
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return ret;
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}
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void usbh_bluetooth_hci_event_rx_thread(void *argument)
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{
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int ret;
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uint32_t ep_mps;
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uint32_t interval;
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uint8_t retry = 0;
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ep_mps = USB_GET_MAXPACKETSIZE(g_bluetooth_class.intin->wMaxPacketSize);
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interval = g_bluetooth_class.intin->bInterval;
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while (1) {
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usbh_int_urb_fill(&g_bluetooth_class.intin_urb, g_bluetooth_class.hport, g_bluetooth_class.intin, g_bluetooth_event_buf, ep_mps, USB_OSAL_WAITING_FOREVER, NULL, NULL);
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ret = usbh_submit_urb(&g_bluetooth_class.intin_urb);
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if (ret < 0) {
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if (ret == -USB_ERR_SHUTDOWN) {
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goto delete;
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} else if (ret == -USB_ERR_NAK) {
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usb_osal_msleep(interval);
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continue;
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} else {
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retry++;
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if (retry == 3) {
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retry = 0;
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goto delete;
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}
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usb_osal_msleep(interval);
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continue;
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}
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}
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usbh_bluetooth_hci_rx_callback(USB_BLUETOOTH_HCI_EVT, g_bluetooth_event_buf, g_bluetooth_class.intin_urb.actual_length);
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usb_osal_msleep(interval);
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}
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// clang-format off
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delete : USB_LOG_INFO("Delete hc event rx thread\r\n");
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usb_osal_thread_delete(NULL);
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// clang-format om
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}
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void usbh_bluetooth_hci_acl_rx_thread(void *argument)
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{
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int ret;
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uint32_t ep_mps;
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uint8_t retry = 0;
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ep_mps = USB_GET_MAXPACKETSIZE(g_bluetooth_class.bulkin->wMaxPacketSize);
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while (1) {
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usbh_bulk_urb_fill(&g_bluetooth_class.bulkin_urb, g_bluetooth_class.hport, g_bluetooth_class.bulkin, g_bluetooth_acl_buf, ep_mps, USB_OSAL_WAITING_FOREVER, NULL, NULL);
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ret = usbh_submit_urb(&g_bluetooth_class.bulkin_urb);
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if (ret < 0) {
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if (ret == -USB_ERR_SHUTDOWN) {
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goto delete;
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} else {
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retry++;
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if (retry == 3) {
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retry = 0;
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goto delete;
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}
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continue;
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}
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}
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usbh_bluetooth_hci_rx_callback(USB_BLUETOOTH_HCI_ACL, g_bluetooth_acl_buf, g_bluetooth_class.bulkin_urb.actual_length);
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}
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// clang-format off
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delete : USB_LOG_INFO("Delete hc acl rx thread\r\n");
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usb_osal_thread_delete(NULL);
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// clang-format om
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}
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__WEAK void usbh_bluetooth_hci_rx_callback(uint8_t hci_type, uint8_t *data, uint32_t len)
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{
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}
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__WEAK void usbh_bluetooth_run(struct usbh_bluetooth *bluetooth_class)
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{
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}
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__WEAK void usbh_bluetooth_stop(struct usbh_bluetooth *bluetooth_class)
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{
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}
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static const struct usbh_class_driver bluetooth_class_driver = {
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.driver_name = "bluetooth",
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.connect = usbh_bluetooth_connect,
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.disconnect = usbh_bluetooth_disconnect
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};
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CLASS_INFO_DEFINE const struct usbh_class_info bluetooth_class_info = {
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.match_flags = USB_CLASS_MATCH_INTF_CLASS | USB_CLASS_MATCH_INTF_SUBCLASS | USB_CLASS_MATCH_INTF_PROTOCOL,
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.class = USB_DEVICE_CLASS_WIRELESS,
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.subclass = 0x01,
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.protocol = 0x01,
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.vid = 0x00,
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.pid = 0x00,
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.class_driver = &bluetooth_class_driver
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};
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53
class/wireless/usbh_bluetooth.h
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53
class/wireless/usbh_bluetooth.h
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@@ -0,0 +1,53 @@
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/*
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* Copyright (c) 2024, sakumisu
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef USBH_BLUETOOTH_H
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#define USBH_BLUETOOTH_H
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#define USB_BLUETOOTH_HCI_CMD 1
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#define USB_BLUETOOTH_HCI_EVT 2
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#define USB_BLUETOOTH_HCI_ACL 4
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#define USB_BLUETOOTH_HCI_ISO 5
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struct usbh_bluetooth {
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struct usbh_hubport *hport;
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struct usb_endpoint_descriptor *bulkin; /* Bulk IN endpoint */
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struct usb_endpoint_descriptor *bulkout; /* Bulk OUT endpoint */
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struct usb_endpoint_descriptor *intin; /* INTR endpoint */
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struct usb_endpoint_descriptor *isoin; /* Bulk IN endpoint */
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struct usb_endpoint_descriptor *isoout; /* Bulk OUT endpoint */
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struct usbh_urb bulkin_urb; /* Bulk IN urb */
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struct usbh_urb bulkout_urb; /* Bulk OUT urb */
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struct usbh_urb intin_urb; /* INTR IN urb */
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struct usbh_urb *isoin_urb; /* Bulk IN urb */
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struct usbh_urb *isoout_urb; /* Bulk OUT urb */
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uint8_t intf;
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uint8_t num_of_intf_altsettings;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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void usbh_bluetooth_run(struct usbh_bluetooth *bluetooth_class);
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void usbh_bluetooth_stop(struct usbh_bluetooth *bluetooth_class);
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/* OpCode(OCF+OGF:2bytes) + ParamLength + Paramas */
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int usbh_bluetooth_hci_cmd(struct usbh_bluetooth *bluetooth_class, uint8_t *buffer, uint32_t buflen);
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/* Handle (12bits) + Packet_Boundary_Flag(2bits) + BC_flag(2bits) + data_len(2bytes) + data */
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int usbh_bluetooth_hci_acl_out(struct usbh_bluetooth *bluetooth_class, uint8_t *buffer, uint32_t buflen);
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void usbh_bluetooth_hci_event_rx_thread(void *argument);
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void usbh_bluetooth_hci_acl_rx_thread(void *argument);
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/* USB_BLUETOOTH_HCI_EVT : EventCode(1byte) + ParamLength + Parama0 + Parama1 + Parama2;
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USB_BLUETOOTH_HCI_ACL : Handle (12bits) + Packet_Boundary_Flag(2bits) + BC_flag(2bits) + data_len(2bytes) + data
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*/
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void usbh_bluetooth_hci_rx_callback(uint8_t hci_type, uint8_t *data, uint32_t len);
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#ifdef __cplusplus
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}
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#endif
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#endif /* USBH_BLUETOOTH_H */
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