/* * Driver for Option High Speed Mobile Devices. * * (c) 2008 Dan Williams * * Inspiration taken from sierra_ms.c by Kevin Lloyd * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include "usb.h" #include "transport.h" #include "option_ms.h" #include "debug.h" #define ZCD_FORCE_MODEM 0x01 #define ZCD_ALLOW_MS 0x02 static unsigned int option_zero_cd = ZCD_FORCE_MODEM; module_param(option_zero_cd, uint, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(option_zero_cd, "ZeroCD mode (1=Force Modem (default)," " 2=Allow CD-Rom"); #define RESPONSE_LEN 1024 static int option_rezero(struct us_data *us) { const unsigned char rezero_msg[] = { 0x55, 0x53, 0x42, 0x43, 0x78, 0x56, 0x34, 0x12, 0x01, 0x00, 0x00, 0x00, 0x80, 0x00, 0x06, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; char *buffer; int result; usb_stor_dbg(us, "Option MS: %s\n", "DEVICE MODE SWITCH"); buffer = kzalloc(RESPONSE_LEN, GFP_KERNEL); if (buffer == NULL) return USB_STOR_TRANSPORT_ERROR; memcpy(buffer, rezero_msg, sizeof(rezero_msg)); result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, buffer, sizeof(rezero_msg), NULL); if (result != USB_STOR_XFER_GOOD) { result = USB_STOR_XFER_ERROR; goto out; } /* * Some of the devices need to be asked for a response, but we don't * care what that response is. */ usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, buffer, RESPONSE_LEN, NULL); /* Read the CSW */ usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, buffer, 13, NULL); result = USB_STOR_XFER_GOOD; out: kfree(buffer); return result; } static int option_inquiry(struct us_data *us) { const unsigned char inquiry_msg[] = { 0x55, 0x53, 0x42, 0x43, 0x12, 0x34, 0x56, 0x78, 0x24, 0x00, 0x00, 0x00, 0x80, 0x00, 0x06, 0x12, 0x00, 0x00, 0x00, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; char *buffer; int result; usb_stor_dbg(us, "Option MS: %s\n", "device inquiry for vendor name"); buffer = kzalloc(0x24, GFP_KERNEL); if (buffer == NULL) return USB_STOR_TRANSPORT_ERROR; memcpy(buffer, inquiry_msg, sizeof(inquiry_msg)); result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, buffer, sizeof(inquiry_msg), NULL); if (result != USB_STOR_XFER_GOOD) { result = USB_STOR_XFER_ERROR; goto out; } result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, buffer, 0x24, NULL); if (result != USB_STOR_XFER_GOOD) { result = USB_STOR_XFER_ERROR; goto out; } result = memcmp(buffer+8, "Option", 6); if (result != 0) result = memcmp(buffer+8, "ZCOPTION", 8); /* Read the CSW */ usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, buffer, 13, NULL); out: kfree(buffer); return result; } int option_ms_init(struct us_data *us) { int result; usb_stor_dbg(us, "Option MS: %s\n", "option_ms_init called"); /* * Additional test for vendor information via INQUIRY, * because some vendor/product IDs are ambiguous */ result = option_inquiry(us); if (result != 0) { usb_stor_dbg(us, "Option MS: %s\n", "vendor is not Option or not determinable, no action taken"); return 0; } else usb_stor_dbg(us, "Option MS: %s\n", "this is a genuine Option device, proceeding"); /* Force Modem mode */ if (option_zero_cd == ZCD_FORCE_MODEM) { usb_stor_dbg(us, "Option MS: %s\n", "Forcing Modem Mode"); result = option_rezero(us); if (result != USB_STOR_XFER_GOOD) usb_stor_dbg(us, "Option MS: %s\n", "Failed to switch to modem mode"); return -EIO; } else if (option_zero_cd == ZCD_ALLOW_MS) { /* Allow Mass Storage mode (keep CD-Rom) */ usb_stor_dbg(us, "Option MS: %s\n", "Allowing Mass Storage Mode if device requests it"); } return 0; } mode:
authorTobias Klauser <tklauser@distanz.ch>2017-01-10 15:02:16 +0100
committerDavid S. Miller <davem@davemloft.net>2017-01-10 21:00:59 -0500
commit3bf003335ba356aac5a43e28640159d4ae8a2a60 (patch)
treec06604c5d38eff0b5327305436e997155c5e82e5 /net/bluetooth/hci_sock.c
parenta5ef01aaac245d37edf113d65b0c146e96d841d1 (diff)
bpf: Make unnecessarily global functions static
Make the functions __local_list_pop_free(), __local_list_pop_pending(), bpf_common_lru_populate() and bpf_percpu_lru_populate() static as they are not used outide of bpf_lru_list.c This fixes the following GCC warnings when building with 'W=1': kernel/bpf/bpf_lru_list.c:363:22: warning: no previous prototype for ‘__local_list_pop_free’ [-Wmissing-prototypes] kernel/bpf/bpf_lru_list.c:376:22: warning: no previous prototype for ‘__local_list_pop_pending’ [-Wmissing-prototypes] kernel/bpf/bpf_lru_list.c:560:6: warning: no previous prototype for ‘bpf_common_lru_populate’ [-Wmissing-prototypes] kernel/bpf/bpf_lru_list.c:577:6: warning: no previous prototype for ‘bpf_percpu_lru_populate’ [-Wmissing-prototypes] Cc: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bluetooth/hci_sock.c')