/* * Emagic EMI 2|6 usb audio interface firmware loader. * Copyright (C) 2002 * Tapio Laxström (tapio.laxstrom@iptime.fi) * * 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, version 2. * * emi26.c,v 1.13 2002/03/08 13:10:26 tapio Exp */ #include #include #include #include #include #include #include #include #define EMI26_VENDOR_ID 0x086a /* Emagic Soft-und Hardware GmBH */ #define EMI26_PRODUCT_ID 0x0100 /* EMI 2|6 without firmware */ #define EMI26B_PRODUCT_ID 0x0102 /* EMI 2|6 without firmware */ #define ANCHOR_LOAD_INTERNAL 0xA0 /* Vendor specific request code for Anchor Upload/Download (This one is implemented in the core) */ #define ANCHOR_LOAD_EXTERNAL 0xA3 /* This command is not implemented in the core. Requires firmware */ #define ANCHOR_LOAD_FPGA 0xA5 /* This command is not implemented in the core. Requires firmware. Emagic extension */ #define MAX_INTERNAL_ADDRESS 0x1B3F /* This is the highest internal RAM address for the AN2131Q */ #define CPUCS_REG 0x7F92 /* EZ-USB Control and Status Register. Bit 0 controls 8051 reset */ #define INTERNAL_RAM(address) (address <= MAX_INTERNAL_ADDRESS) static int emi26_writememory( struct usb_device *dev, int address, const unsigned char *data, int length, __u8 bRequest); static int emi26_set_reset(struct usb_device *dev, unsigned char reset_bit); static int emi26_load_firmware (struct usb_device *dev); static int emi26_probe(struct usb_interface *intf, const struct usb_device_id *id); static void emi26_disconnect(struct usb_interface *intf); /* thanks to drivers/usb/serial/keyspan_pda.c code */ static int emi26_writememory (struct usb_device *dev, int address, const unsigned char *data, int length, __u8 request) { int result; unsigned char *buffer = kmemdup(data, length, GFP_KERNEL); if (!buffer) { dev_err(&dev->dev, "kmalloc(%d) failed.\n", length); return -ENOMEM; } /* Note: usb_control_msg returns negative value on error or length of the * data that was written! */ result = usb_control_msg (dev, usb_sndctrlpipe(dev, 0), request, 0x40, address, 0, buffer, length, 300); kfree (buffer); return result; } /* thanks to drivers/usb/serial/keyspan_pda.c code */ static int emi26_set_reset (struct usb_device *dev, unsigned char reset_bit) { int response; dev_info(&dev->dev, "%s - %d\n", __func__, reset_bit); /* printk(KERN_DEBUG "%s - %d", __func__, reset_bit); */ response = emi26_writememory (dev, CPUCS_REG, &reset_bit, 1, 0xa0); if (response < 0) { dev_err(&dev->dev, "set_reset (%d) failed\n", reset_bit); } return response; } #define FW_LOAD_SIZE 1023 static int emi26_load_firmware (struct usb_device *dev) { const struct firmware *loader_fw = NULL; const struct firmware *bitstream_fw = NULL; const struct firmware *firmware_fw = NULL; const struct ihex_binrec *rec; int err = -ENOMEM; int i; __u32 addr; /* Address to write */ __u8 *buf; buf = kmalloc(FW_LOAD_SIZE, GFP_KERNEL); if (!buf) goto wraperr; err = request_ihex_firmware(&loader_fw, "emi26/loader.fw", &dev->dev); if (err) goto nofw; err = request_ihex_firmware(&bitstream_fw, "emi26/bitstream.fw", &dev->dev); if (err) goto nofw; err = request_ihex_firmware(&firmware_fw, "emi26/firmware.fw", &dev->dev); if (err) { nofw: dev_err(&dev->dev, "%s - request_firmware() failed\n", __func__); goto wraperr; } /* Assert reset (stop the CPU in the EMI) */ err = emi26_set_reset(dev,1); if (err < 0) goto wraperr; rec = (const struct ihex_binrec *)loader_fw->data; /* 1. We need to put the loader for the FPGA into the EZ-USB */ while (rec) { err = emi26_writememory(dev, be32_to_cpu(rec->addr), rec->data, be16_to_cpu(rec->len), ANCHOR_LOAD_INTERNAL); if (err < 0) goto wraperr; rec = ihex_next_binrec(rec); } /* De-assert reset (let the CPU run) */ err = emi26_set_reset(dev,0); if (err < 0) goto wraperr; msleep(250); /* let device settle */ /* 2. We upload the FPGA firmware into the EMI * Note: collect up to 1023 (yes!) bytes and send them with * a single request. This is _much_ faster! */ rec = (const struct ihex_binrec *)bitstream_fw->data; do { i = 0; addr = be32_to_cpu(rec->addr); /* intel hex records are terminated with type 0 element */ while (rec && (i + be16_to_cpu(rec->len) < FW_LOAD_SIZE)) { memcpy(buf + i, rec->data, be16_to_cpu(rec->len)); i += be16_to_cpu(rec->len); rec = ihex_next_binrec(rec); } err = emi26_writememory(dev, addr, buf, i, ANCHOR_LOAD_FPGA); if (err < 0) goto wraperr; } while (rec); /* Assert reset (stop the CPU in the EMI) */ err = emi26_set_reset(dev,1); if (err < 0) goto wraperr; /* 3. We need to put the loader for the firmware into the EZ-USB (again...) */ for (rec = (const struct ihex_binrec *)loader_fw->data; rec; rec = ihex_next_binrec(rec)) { err = emi26_writememory(dev, be32_to_cpu(rec->addr), rec->data, be16_to_cpu(rec->len), ANCHOR_LOAD_INTERNAL); if (err < 0) goto wraperr; } msleep(250); /* let device settle */ /* De-assert reset (let the CPU run) */ err = emi26_set_reset(dev,0); if (err < 0) goto wraperr; /* 4. We put the part of the firmware that lies in the external RAM into the EZ-USB */ for (rec = (const struct ihex_binrec *)firmware_fw->data; rec; rec = ihex_next_binrec(rec)) { if (!INTERNAL_RAM(be32_to_cpu(rec->addr))) { err = emi26_writememory(dev, be32_to_cpu(rec->addr), rec->data, be16_to_cpu(rec->len), ANCHOR_LOAD_EXTERNAL); if (err < 0) goto wraperr; } } /* Assert reset (stop the CPU in the EMI) */ err = emi26_set_reset(dev,1); if (err < 0) goto wraperr; for (rec = (const struct ihex_binrec *)firmware_fw->data; rec; rec = ihex_next_binrec(rec)) { if (INTERNAL_RAM(be32_to_cpu(rec->addr))) { err = emi26_writememory(dev, be32_to_cpu(rec->addr), rec->data, be16_to_cpu(rec->len), ANCHOR_LOAD_INTERNAL); if (err < 0) goto wraperr; } } /* De-assert reset (let the CPU run) */ err = emi26_set_reset(dev,0); if (err < 0) goto wraperr; msleep(250); /* let device settle */ /* return 1 to fail the driver inialization * and give real driver change to load */ err = 1; wraperr: if (err < 0) dev_err(&dev->dev,"%s - error loading firmware: error = %d\n", __func__, err); release_firmware(loader_fw); release_firmware(bitstream_fw); release_firmware(firmware_fw); kfree(buf); return err; } static const struct usb_device_id id_table[] = { { USB_DEVICE(EMI26_VENDOR_ID, EMI26_PRODUCT_ID) }, { USB_DEVICE(EMI26_VENDOR_ID, EMI26B_PRODUCT_ID) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE (usb, id_table); static int emi26_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_device *dev = interface_to_usbdev(intf); dev_info(&intf->dev, "%s start\n", __func__); emi26_load_firmware(dev); /* do not return the driver context, let real audio driver do that */ return -EIO; } static void emi26_disconnect(struct usb_interface *intf) { } static struct usb_driver emi26_driver = { .name = "emi26 - firmware loader", .probe = emi26_probe, .disconnect = emi26_disconnect, .id_table = id_table, }; module_usb_driver(emi26_driver); MODULE_AUTHOR("Tapio Laxström"); MODULE_DESCRIPTION("Emagic EMI 2|6 firmware loader."); MODULE_LICENSE("GPL"); MODULE_FIRMWARE("emi26/loader.fw"); MODULE_FIRMWARE("emi26/bitstream.fw"); MODULE_FIRMWARE("emi26/firmware.fw"); /* vi:ai:syntax=c:sw=8:ts=8:tw=80 */ ops to be deleted without specifying each one in the delete request. Internally, this is done by walking the sibling list of the route matching the specifications given (prefix, length, metric, protocol, etc). $ ip -6 ro ls vrf red 2001:db8:1::/120 dev eth1 proto kernel metric 256 pref medium 2001:db8:2::/120 dev eth2 proto kernel metric 256 pref medium 2001:db8:200::/120 via 2001:db8:1::2 dev eth1 metric 1024 pref medium 2001:db8:200::/120 via 2001:db8:2::2 dev eth2 metric 1024 pref medium ... $ ip -6 ro del vrf red 2001:db8:200::/120 $ ip -6 ro ls vrf red 2001:db8:1::/120 dev eth1 proto kernel metric 256 pref medium 2001:db8:2::/120 dev eth2 proto kernel metric 256 pref medium ... Because IPv6 allows individual nexthops to be deleted without deleting the entire route, the ip6_route_multipath_del and non-multipath code path (ip6_route_del) have to be discriminated so that all nexthops are only deleted for the latter case. This is done by making the existing fc_type in fib6_config a u16 and then adding a new u16 field with fc_delete_all_nh as the first bit. Suggested-by: Dinesh Dutt <ddutt@cumulusnetworks.com> Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2017-02-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller7-39/+28 Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for your net-next tree, they are: 1) Stash ctinfo 3-bit field into pointer to nf_conntrack object from sk_buff so we only access one single cacheline in the conntrack hotpath. Patchset from Florian Westphal. 2) Don't leak pointer to internal structures when exporting x_tables ruleset back to userspace, from Willem DeBruijn. This includes new helper functions to copy data to userspace such as xt_data_to_user() as well as conversions of our ip_tables, ip6_tables and arp_tables clients to use it. Not surprinsingly, ebtables requires an ad-hoc update. There is also a new field in x_tables extensions to indicate the amount of bytes that we copy to userspace. 3) Add nf_log_all_netns sysctl: This new knob allows you to enable logging via nf_log infrastructure for all existing netnamespaces. Given the effort to provide pernet syslog has been discontinued, let's provide a way to restore logging using netfilter kernel logging facilities in trusted environments. Patch from Michal Kubecek. 4) Validate SCTP checksum from conntrack helper, from Davide Caratti. 5) Merge UDPlite conntrack and NAT helpers into UDP, this was mostly a copy&paste from the original helper, from Florian Westphal. 6) Reset netfilter state when duplicating packets, also from Florian. 7) Remove unnecessary check for broadcast in IPv6 in pkttype match and nft_meta, from Liping Zhang. 8) Add missing code to deal with loopback packets from nft_meta when used by the netdev family, also from Liping. 9) Several cleanups on nf_tables, one to remove unnecessary check from the netlink control plane path to add table, set and stateful objects and code consolidation when unregister chain hooks, from Gao Feng. 10) Fix harmless reference counter underflow in IPVS that, however, results in problems with the introduction of the new refcount_t type, from David Windsor. 11) Enable LIBCRC32C from nf_ct_sctp instead of nf_nat_sctp, from Davide Caratti. 12) Missing documentation on nf_tables uapi header, from Liping Zhang. 13) Use rb_entry() helper in xt_connlimit, from Geliang Tang. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> 2017-02-03net: ipv6: Set protocol to kernel for local routesDavid Ahern1-0/+1 IPv6 stack does not set the protocol for local routes, so those routes show up with proto "none": $ ip -6 ro ls table local local ::1 dev lo proto none metric 0 pref medium local 2100:3:: dev lo proto none metric 0 pref medium local 2100:3::4 dev lo proto none metric 0 pref medium local fe80:: dev lo proto none metric 0 pref medium ... Set rt6i_protocol to RTPROT_KERNEL for consistency with IPv4. Now routes show up with proto "kernel": $ ip -6 ro ls table local local ::1 dev lo proto kernel metric 0 pref medium local 2100:3:: dev lo proto kernel metric 0 pref medium local 2100:3::4 dev lo proto kernel metric 0 pref medium local fe80:: dev lo proto kernel metric 0 pref medium ... Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2017-02-03tcp: add tcp_mss_clamp() helperEric Dumazet1-4/+1 Small cleanup factorizing code doing the TCP_MAXSEG clamping. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2017-02-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2-2/+2 All merge conflicts were simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net> 2017-02-02netfilter: allow logging from non-init namespacesMichal Kubeček1-1/+1 Commit 69b34fb996b2 ("netfilter: xt_LOG: add net namespace support for xt_LOG") disabled logging packets using the LOG target from non-init namespaces. The motivation was to prevent containers from flooding kernel log of the host. The plan was to keep it that way until syslog namespace implementation allows containers to log in a safe way. However, the work on syslog namespace seems to have hit a dead end somewhere in 2013 and there are users who want to use xt_LOG in all network namespaces. This patch allows to do so by setting /proc/sys/net/netfilter/nf_log_all_netns to a nonzero value. This sysctl is only accessible from init_net so that one cannot switch the behaviour from inside a container. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 2017-02-02netfilter: merge ctinfo into nfct pointer storage areaFlorian Westphal1-1/+1 After this change conntrack operations (lookup, creation, matching from ruleset) only access one instead of two sk_buff cache lines. This works for normal conntracks because those are allocated from a slab that guarantees hw cacheline or 8byte alignment (whatever is larger) so the 3 bits needed for ctinfo won't overlap with nf_conn addresses. Template allocation now does manual address alignment (see previous change) on arches that don't have sufficent kmalloc min alignment. Some spots intentionally use skb->_nfct instead of skb_nfct() helpers, this is to avoid undoing the skb_nfct() use when we remove untracked conntrack object in the future. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 2017-02-02netfilter: add and use nf_ct_set helperFlorian Westphal3-8/+4 Add a helper to assign a nf_conn entry and the ctinfo bits to an sk_buff. This avoids changing code in followup patch that merges skb->nfct and skb->nfctinfo into skb->_nfct. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 2017-02-02skbuff: add and use skb_nfct helperFlorian Westphal3-8/+8 Followup patch renames skb->nfct and changes its type so add a helper to avoid intrusive rename change later. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 2017-02-02netfilter: reset netfilter state when duplicating packetFlorian Westphal1-1/+1 We should also toss nf_bridge_info, if any -- packet is leaving via ip_local_out, also, this skb isn't bridged -- it is a locally generated copy. Also this avoids the need to touch this later when skb->nfct is replaced with 'unsigned long _nfct' in followup patch. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 2017-02-02netfilter: conntrack: no need to pass ctinfo to error handlerFlorian Westphal1-6/+6 It is never accessed for reading and the only places that write to it are the icmp(6) handlers, which also set skb->nfct (and skb->nfctinfo). The conntrack core specifically checks for attached skb->nfct after ->error() invocation and returns early in this case. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>