mirror of
https://git.kernel.org/pub/scm/bluetooth/bluez.git
synced 2024-12-12 13:34:41 +08:00
b8779d2202
This reverts commit 8a03376544
.
The patch needs to be split up and the gdbus/ changes were bogus
compared to the original commit message.
Conflicts:
Makefile.am
Makefile.obexd
profiles/cyclingspeed/cyclingspeed.c
profiles/heartrate/heartrate.c
src/error.c
181 lines
3.8 KiB
C
181 lines
3.8 KiB
C
/*
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*
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <usb.h>
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#include "csr.h"
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#ifdef NEED_USB_GET_BUSSES
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static inline struct usb_bus *usb_get_busses(void)
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{
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return usb_busses;
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}
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#endif
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#ifdef NEED_USB_INTERRUPT_READ
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static inline int usb_interrupt_read(usb_dev_handle *dev, int ep, char *bytes, int size, int timeout)
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{
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return usb_bulk_read(dev, ep, bytes, size, timeout);
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}
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#endif
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#ifndef USB_DIR_OUT
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#define USB_DIR_OUT 0x00
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#endif
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static uint16_t seqnum = 0x0000;
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static struct usb_dev_handle *udev = NULL;
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int csr_open_usb(char *device)
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{
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struct usb_bus *bus;
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struct usb_device *dev;
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usb_init();
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usb_find_busses();
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usb_find_devices();
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for (bus = usb_get_busses(); bus; bus = bus->next) {
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for (dev = bus->devices; dev; dev = dev->next) {
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if (dev->descriptor.bDeviceClass == USB_CLASS_HUB)
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continue;
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if (dev->descriptor.idVendor != 0x0a12 ||
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dev->descriptor.idProduct != 0x0001)
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continue;
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goto found;
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}
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}
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fprintf(stderr, "Device not available\n");
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return -1;
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found:
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udev = usb_open(dev);
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if (!udev) {
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fprintf(stderr, "Can't open device: %s (%d)\n",
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strerror(errno), errno);
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return -1;
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}
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if (usb_claim_interface(udev, 0) < 0) {
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fprintf(stderr, "Can't claim interface: %s (%d)\n",
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strerror(errno), errno);
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usb_close(udev);
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return -1;
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}
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return 0;
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}
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static int do_command(uint16_t command, uint16_t seqnum, uint16_t varid, uint8_t *value, uint16_t length)
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{
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unsigned char cp[254], rp[254];
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uint8_t cmd[10];
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uint16_t size;
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int len, offset = 0;
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size = (length < 8) ? 9 : ((length + 1) / 2) + 5;
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cmd[0] = command & 0xff;
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cmd[1] = command >> 8;
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cmd[2] = size & 0xff;
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cmd[3] = size >> 8;
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cmd[4] = seqnum & 0xff;
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cmd[5] = seqnum >> 8;
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cmd[6] = varid & 0xff;
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cmd[7] = varid >> 8;
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cmd[8] = 0x00;
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cmd[9] = 0x00;
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memset(cp, 0, sizeof(cp));
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cp[0] = 0x00;
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cp[1] = 0xfc;
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cp[2] = (size * 2) + 1;
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cp[3] = 0xc2;
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memcpy(cp + 4, cmd, sizeof(cmd));
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memcpy(cp + 14, value, length);
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usb_interrupt_read(udev, 0x81, (void *) rp, sizeof(rp), 2);
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if (usb_control_msg(udev, USB_TYPE_CLASS | USB_DIR_OUT | USB_RECIP_DEVICE,
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0, 0, 0, (void *) cp, (size * 2) + 4, 1000) < 0)
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return -1;
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switch (varid) {
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case CSR_VARID_COLD_RESET:
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case CSR_VARID_WARM_RESET:
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case CSR_VARID_COLD_HALT:
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case CSR_VARID_WARM_HALT:
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return 0;
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}
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do {
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len = usb_interrupt_read(udev, 0x81,
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(void *) (rp + offset), sizeof(rp) - offset, 10);
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offset += len;
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} while (len > 0);
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if (rp[0] != 0xff || rp[2] != 0xc2) {
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errno = EIO;
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return -1;
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}
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if ((rp[11] + (rp[12] << 8)) != 0) {
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errno = ENXIO;
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return -1;
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}
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memcpy(value, rp + 13, length);
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return 0;
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}
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int csr_read_usb(uint16_t varid, uint8_t *value, uint16_t length)
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{
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return do_command(0x0000, seqnum++, varid, value, length);
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}
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int csr_write_usb(uint16_t varid, uint8_t *value, uint16_t length)
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{
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return do_command(0x0002, seqnum++, varid, value, length);
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}
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void csr_close_usb(void)
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{
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usb_release_interface(udev, 0);
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usb_close(udev);
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}
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