^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Digianswer Bluetooth USB driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2004-2007 Marcel Holtmann <marcel@holtmann.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/skbuff.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <net/bluetooth/bluetooth.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <net/bluetooth/hci_core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include "h4_recv.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define VERSION "0.11"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static const struct usb_device_id bpa10x_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /* Tektronix BPA 100/105 (Digianswer) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) { USB_DEVICE(0x08fd, 0x0002) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) { } /* Terminating entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) MODULE_DEVICE_TABLE(usb, bpa10x_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) struct bpa10x_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct hci_dev *hdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct usb_device *udev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct usb_anchor tx_anchor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct usb_anchor rx_anchor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) struct sk_buff *rx_skb[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) static void bpa10x_tx_complete(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct sk_buff *skb = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) struct hci_dev *hdev = (struct hci_dev *) skb->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) BT_DBG("%s urb %p status %d count %d", hdev->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) urb, urb->status, urb->actual_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) if (!test_bit(HCI_RUNNING, &hdev->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) if (!urb->status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) hdev->stat.byte_tx += urb->transfer_buffer_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) hdev->stat.err_tx++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) done:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) kfree(urb->setup_packet);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) #define HCI_VENDOR_HDR_SIZE 5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define HCI_RECV_VENDOR \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .type = HCI_VENDOR_PKT, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) .hlen = HCI_VENDOR_HDR_SIZE, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) .loff = 3, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .lsize = 2, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .maxlen = HCI_MAX_FRAME_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) static const struct h4_recv_pkt bpa10x_recv_pkts[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) { H4_RECV_ACL, .recv = hci_recv_frame },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) { H4_RECV_SCO, .recv = hci_recv_frame },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) { H4_RECV_EVENT, .recv = hci_recv_frame },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) { HCI_RECV_VENDOR, .recv = hci_recv_diag },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) static void bpa10x_rx_complete(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) struct hci_dev *hdev = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct bpa10x_data *data = hci_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) BT_DBG("%s urb %p status %d count %d", hdev->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) urb, urb->status, urb->actual_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) if (!test_bit(HCI_RUNNING, &hdev->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) if (urb->status == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) bool idx = usb_pipebulk(urb->pipe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) data->rx_skb[idx] = h4_recv_buf(hdev, data->rx_skb[idx],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) urb->transfer_buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) urb->actual_length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) bpa10x_recv_pkts,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) ARRAY_SIZE(bpa10x_recv_pkts));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) if (IS_ERR(data->rx_skb[idx])) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) bt_dev_err(hdev, "corrupted event packet");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) hdev->stat.err_rx++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) data->rx_skb[idx] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) usb_anchor_urb(urb, &data->rx_anchor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) err = usb_submit_urb(urb, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) bt_dev_err(hdev, "urb %p failed to resubmit (%d)", urb, -err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) usb_unanchor_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static inline int bpa10x_submit_intr_urb(struct hci_dev *hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) struct bpa10x_data *data = hci_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) struct urb *urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) unsigned char *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) unsigned int pipe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) int err, size = 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) BT_DBG("%s", hdev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) urb = usb_alloc_urb(0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) if (!urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) buf = kmalloc(size, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) if (!buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) usb_free_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) pipe = usb_rcvintpipe(data->udev, 0x81);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) usb_fill_int_urb(urb, data->udev, pipe, buf, size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) bpa10x_rx_complete, hdev, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) urb->transfer_flags |= URB_FREE_BUFFER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) usb_anchor_urb(urb, &data->rx_anchor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) err = usb_submit_urb(urb, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) bt_dev_err(hdev, "urb %p submission failed (%d)", urb, -err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) usb_unanchor_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) usb_free_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) static inline int bpa10x_submit_bulk_urb(struct hci_dev *hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) struct bpa10x_data *data = hci_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) struct urb *urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) unsigned char *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) unsigned int pipe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) int err, size = 64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) BT_DBG("%s", hdev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) urb = usb_alloc_urb(0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) if (!urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) buf = kmalloc(size, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) if (!buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) usb_free_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) pipe = usb_rcvbulkpipe(data->udev, 0x82);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) usb_fill_bulk_urb(urb, data->udev, pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) buf, size, bpa10x_rx_complete, hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) urb->transfer_flags |= URB_FREE_BUFFER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) usb_anchor_urb(urb, &data->rx_anchor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) err = usb_submit_urb(urb, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) bt_dev_err(hdev, "urb %p submission failed (%d)", urb, -err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) usb_unanchor_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) usb_free_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) static int bpa10x_open(struct hci_dev *hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) struct bpa10x_data *data = hci_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) BT_DBG("%s", hdev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) err = bpa10x_submit_intr_urb(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) err = bpa10x_submit_bulk_urb(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) usb_kill_anchored_urbs(&data->rx_anchor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) static int bpa10x_close(struct hci_dev *hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) struct bpa10x_data *data = hci_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) BT_DBG("%s", hdev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) usb_kill_anchored_urbs(&data->rx_anchor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) static int bpa10x_flush(struct hci_dev *hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) struct bpa10x_data *data = hci_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) BT_DBG("%s", hdev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) usb_kill_anchored_urbs(&data->tx_anchor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) static int bpa10x_setup(struct hci_dev *hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) static const u8 req[] = { 0x07 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) BT_DBG("%s", hdev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) /* Read revision string */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) skb = __hci_cmd_sync(hdev, 0xfc0e, sizeof(req), req, HCI_INIT_TIMEOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) if (IS_ERR(skb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) return PTR_ERR(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) hci_set_fw_info(hdev, "%s", skb->data + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) static int bpa10x_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) struct bpa10x_data *data = hci_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) struct usb_ctrlrequest *dr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) struct urb *urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) unsigned int pipe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) BT_DBG("%s", hdev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) skb->dev = (void *) hdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) urb = usb_alloc_urb(0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) if (!urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) /* Prepend skb with frame type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) *(u8 *)skb_push(skb, 1) = hci_skb_pkt_type(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) switch (hci_skb_pkt_type(skb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) case HCI_COMMAND_PKT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) dr = kmalloc(sizeof(*dr), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) if (!dr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) usb_free_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) dr->bRequestType = USB_TYPE_VENDOR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) dr->bRequest = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) dr->wIndex = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) dr->wValue = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) dr->wLength = __cpu_to_le16(skb->len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) pipe = usb_sndctrlpipe(data->udev, 0x00);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) skb->data, skb->len, bpa10x_tx_complete, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) hdev->stat.cmd_tx++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) case HCI_ACLDATA_PKT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) pipe = usb_sndbulkpipe(data->udev, 0x02);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) usb_fill_bulk_urb(urb, data->udev, pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) skb->data, skb->len, bpa10x_tx_complete, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) hdev->stat.acl_tx++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) case HCI_SCODATA_PKT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) pipe = usb_sndbulkpipe(data->udev, 0x02);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) usb_fill_bulk_urb(urb, data->udev, pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) skb->data, skb->len, bpa10x_tx_complete, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) hdev->stat.sco_tx++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) usb_free_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) return -EILSEQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) usb_anchor_urb(urb, &data->tx_anchor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) err = usb_submit_urb(urb, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) bt_dev_err(hdev, "urb %p submission failed", urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) kfree(urb->setup_packet);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) usb_unanchor_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) usb_free_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) static int bpa10x_set_diag(struct hci_dev *hdev, bool enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) const u8 req[] = { 0x00, enable };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) BT_DBG("%s", hdev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) if (!test_bit(HCI_RUNNING, &hdev->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) return -ENETDOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) /* Enable sniffer operation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) skb = __hci_cmd_sync(hdev, 0xfc0e, sizeof(req), req, HCI_INIT_TIMEOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) if (IS_ERR(skb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) return PTR_ERR(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) static int bpa10x_probe(struct usb_interface *intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) const struct usb_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) struct bpa10x_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) struct hci_dev *hdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) BT_DBG("intf %p id %p", intf, id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) if (!data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) data->udev = interface_to_usbdev(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) init_usb_anchor(&data->tx_anchor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) init_usb_anchor(&data->rx_anchor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) hdev = hci_alloc_dev();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) if (!hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) hdev->bus = HCI_USB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) hci_set_drvdata(hdev, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) data->hdev = hdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) SET_HCIDEV_DEV(hdev, &intf->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) hdev->open = bpa10x_open;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) hdev->close = bpa10x_close;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) hdev->flush = bpa10x_flush;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) hdev->setup = bpa10x_setup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) hdev->send = bpa10x_send_frame;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) hdev->set_diag = bpa10x_set_diag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) err = hci_register_dev(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) hci_free_dev(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) usb_set_intfdata(intf, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) static void bpa10x_disconnect(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) struct bpa10x_data *data = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) BT_DBG("intf %p", intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) if (!data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) usb_set_intfdata(intf, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) hci_unregister_dev(data->hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) hci_free_dev(data->hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) kfree_skb(data->rx_skb[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) kfree_skb(data->rx_skb[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) static struct usb_driver bpa10x_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) .name = "bpa10x",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) .probe = bpa10x_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) .disconnect = bpa10x_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) .id_table = bpa10x_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) .disable_hub_initiated_lpm = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) module_usb_driver(bpa10x_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) MODULE_DESCRIPTION("Digianswer Bluetooth USB driver ver " VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) MODULE_VERSION(VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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