From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- sound/core/seq/oss/seq_oss_synth.c | 666 +++++++++++++++++++++++++++++++++++++ 1 file changed, 666 insertions(+) create mode 100644 sound/core/seq/oss/seq_oss_synth.c (limited to 'sound/core/seq/oss/seq_oss_synth.c') diff --git a/sound/core/seq/oss/seq_oss_synth.c b/sound/core/seq/oss/seq_oss_synth.c new file mode 100644 index 000000000..e3394919d --- /dev/null +++ b/sound/core/seq/oss/seq_oss_synth.c @@ -0,0 +1,666 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * OSS compatible sequencer driver + * + * synth device handlers + * + * Copyright (C) 1998,99 Takashi Iwai + */ + +#include "seq_oss_synth.h" +#include "seq_oss_midi.h" +#include "../seq_lock.h" +#include +#include +#include +#include + +/* + * constants + */ +#define SNDRV_SEQ_OSS_MAX_SYNTH_NAME 30 +#define MAX_SYSEX_BUFLEN 128 + + +/* + * definition of synth info records + */ + +/* sysex buffer */ +struct seq_oss_synth_sysex { + int len; + int skip; + unsigned char buf[MAX_SYSEX_BUFLEN]; +}; + +/* synth info */ +struct seq_oss_synth { + int seq_device; + + /* for synth_info */ + int synth_type; + int synth_subtype; + int nr_voices; + + char name[SNDRV_SEQ_OSS_MAX_SYNTH_NAME]; + struct snd_seq_oss_callback oper; + + int opened; + + void *private_data; + snd_use_lock_t use_lock; +}; + + +/* + * device table + */ +static int max_synth_devs; +static struct seq_oss_synth *synth_devs[SNDRV_SEQ_OSS_MAX_SYNTH_DEVS]; +static struct seq_oss_synth midi_synth_dev = { + .seq_device = -1, + .synth_type = SYNTH_TYPE_MIDI, + .synth_subtype = 0, + .nr_voices = 16, + .name = "MIDI", +}; + +static DEFINE_SPINLOCK(register_lock); + +/* + * prototypes + */ +static struct seq_oss_synth *get_synthdev(struct seq_oss_devinfo *dp, int dev); +static void reset_channels(struct seq_oss_synthinfo *info); + +/* + * global initialization + */ +void __init +snd_seq_oss_synth_init(void) +{ + snd_use_lock_init(&midi_synth_dev.use_lock); +} + +/* + * registration of the synth device + */ +int +snd_seq_oss_synth_probe(struct device *_dev) +{ + struct snd_seq_device *dev = to_seq_dev(_dev); + int i; + struct seq_oss_synth *rec; + struct snd_seq_oss_reg *reg = SNDRV_SEQ_DEVICE_ARGPTR(dev); + unsigned long flags; + + rec = kzalloc(sizeof(*rec), GFP_KERNEL); + if (!rec) + return -ENOMEM; + rec->seq_device = -1; + rec->synth_type = reg->type; + rec->synth_subtype = reg->subtype; + rec->nr_voices = reg->nvoices; + rec->oper = reg->oper; + rec->private_data = reg->private_data; + rec->opened = 0; + snd_use_lock_init(&rec->use_lock); + + /* copy and truncate the name of synth device */ + strscpy(rec->name, dev->name, sizeof(rec->name)); + + /* registration */ + spin_lock_irqsave(®ister_lock, flags); + for (i = 0; i < max_synth_devs; i++) { + if (synth_devs[i] == NULL) + break; + } + if (i >= max_synth_devs) { + if (max_synth_devs >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS) { + spin_unlock_irqrestore(®ister_lock, flags); + pr_err("ALSA: seq_oss: no more synth slot\n"); + kfree(rec); + return -ENOMEM; + } + max_synth_devs++; + } + rec->seq_device = i; + synth_devs[i] = rec; + spin_unlock_irqrestore(®ister_lock, flags); + dev->driver_data = rec; +#ifdef SNDRV_OSS_INFO_DEV_SYNTH + if (i < SNDRV_CARDS) + snd_oss_info_register(SNDRV_OSS_INFO_DEV_SYNTH, i, rec->name); +#endif + return 0; +} + + +int +snd_seq_oss_synth_remove(struct device *_dev) +{ + struct snd_seq_device *dev = to_seq_dev(_dev); + int index; + struct seq_oss_synth *rec = dev->driver_data; + unsigned long flags; + + spin_lock_irqsave(®ister_lock, flags); + for (index = 0; index < max_synth_devs; index++) { + if (synth_devs[index] == rec) + break; + } + if (index >= max_synth_devs) { + spin_unlock_irqrestore(®ister_lock, flags); + pr_err("ALSA: seq_oss: can't unregister synth\n"); + return -EINVAL; + } + synth_devs[index] = NULL; + if (index == max_synth_devs - 1) { + for (index--; index >= 0; index--) { + if (synth_devs[index]) + break; + } + max_synth_devs = index + 1; + } + spin_unlock_irqrestore(®ister_lock, flags); +#ifdef SNDRV_OSS_INFO_DEV_SYNTH + if (rec->seq_device < SNDRV_CARDS) + snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_SYNTH, rec->seq_device); +#endif + + snd_use_lock_sync(&rec->use_lock); + kfree(rec); + + return 0; +} + + +/* + */ +static struct seq_oss_synth * +get_sdev(int dev) +{ + struct seq_oss_synth *rec; + unsigned long flags; + + spin_lock_irqsave(®ister_lock, flags); + rec = synth_devs[dev]; + if (rec) + snd_use_lock_use(&rec->use_lock); + spin_unlock_irqrestore(®ister_lock, flags); + return rec; +} + + +/* + * set up synth tables + */ + +void +snd_seq_oss_synth_setup(struct seq_oss_devinfo *dp) +{ + int i; + struct seq_oss_synth *rec; + struct seq_oss_synthinfo *info; + + dp->max_synthdev = max_synth_devs; + dp->synth_opened = 0; + memset(dp->synths, 0, sizeof(dp->synths)); + for (i = 0; i < dp->max_synthdev; i++) { + rec = get_sdev(i); + if (rec == NULL) + continue; + if (rec->oper.open == NULL || rec->oper.close == NULL) { + snd_use_lock_free(&rec->use_lock); + continue; + } + info = &dp->synths[i]; + info->arg.app_index = dp->port; + info->arg.file_mode = dp->file_mode; + info->arg.seq_mode = dp->seq_mode; + if (dp->seq_mode == SNDRV_SEQ_OSS_MODE_SYNTH) + info->arg.event_passing = SNDRV_SEQ_OSS_PROCESS_EVENTS; + else + info->arg.event_passing = SNDRV_SEQ_OSS_PASS_EVENTS; + info->opened = 0; + if (!try_module_get(rec->oper.owner)) { + snd_use_lock_free(&rec->use_lock); + continue; + } + if (rec->oper.open(&info->arg, rec->private_data) < 0) { + module_put(rec->oper.owner); + snd_use_lock_free(&rec->use_lock); + continue; + } + info->nr_voices = rec->nr_voices; + if (info->nr_voices > 0) { + info->ch = kcalloc(info->nr_voices, sizeof(struct seq_oss_chinfo), GFP_KERNEL); + if (!info->ch) { + rec->oper.close(&info->arg); + module_put(rec->oper.owner); + snd_use_lock_free(&rec->use_lock); + continue; + } + reset_channels(info); + } + info->opened++; + rec->opened++; + dp->synth_opened++; + snd_use_lock_free(&rec->use_lock); + } +} + + +/* + * set up synth tables for MIDI emulation - /dev/music mode only + */ + +void +snd_seq_oss_synth_setup_midi(struct seq_oss_devinfo *dp) +{ + int i; + + if (dp->max_synthdev >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS) + return; + + for (i = 0; i < dp->max_mididev; i++) { + struct seq_oss_synthinfo *info; + info = &dp->synths[dp->max_synthdev]; + if (snd_seq_oss_midi_open(dp, i, dp->file_mode) < 0) + continue; + info->arg.app_index = dp->port; + info->arg.file_mode = dp->file_mode; + info->arg.seq_mode = dp->seq_mode; + info->arg.private_data = info; + info->is_midi = 1; + info->midi_mapped = i; + info->arg.event_passing = SNDRV_SEQ_OSS_PASS_EVENTS; + snd_seq_oss_midi_get_addr(dp, i, &info->arg.addr); + info->opened = 1; + midi_synth_dev.opened++; + dp->max_synthdev++; + if (dp->max_synthdev >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS) + break; + } +} + + +/* + * clean up synth tables + */ + +void +snd_seq_oss_synth_cleanup(struct seq_oss_devinfo *dp) +{ + int i; + struct seq_oss_synth *rec; + struct seq_oss_synthinfo *info; + + if (snd_BUG_ON(dp->max_synthdev > SNDRV_SEQ_OSS_MAX_SYNTH_DEVS)) + return; + for (i = 0; i < dp->max_synthdev; i++) { + info = &dp->synths[i]; + if (! info->opened) + continue; + if (info->is_midi) { + if (midi_synth_dev.opened > 0) { + snd_seq_oss_midi_close(dp, info->midi_mapped); + midi_synth_dev.opened--; + } + } else { + rec = get_sdev(i); + if (rec == NULL) + continue; + if (rec->opened > 0) { + rec->oper.close(&info->arg); + module_put(rec->oper.owner); + rec->opened = 0; + } + snd_use_lock_free(&rec->use_lock); + } + kfree(info->sysex); + info->sysex = NULL; + kfree(info->ch); + info->ch = NULL; + } + dp->synth_opened = 0; + dp->max_synthdev = 0; +} + +static struct seq_oss_synthinfo * +get_synthinfo_nospec(struct seq_oss_devinfo *dp, int dev) +{ + if (dev < 0 || dev >= dp->max_synthdev) + return NULL; + dev = array_index_nospec(dev, SNDRV_SEQ_OSS_MAX_SYNTH_DEVS); + return &dp->synths[dev]; +} + +/* + * return synth device information pointer + */ +static struct seq_oss_synth * +get_synthdev(struct seq_oss_devinfo *dp, int dev) +{ + struct seq_oss_synth *rec; + struct seq_oss_synthinfo *info = get_synthinfo_nospec(dp, dev); + + if (!info) + return NULL; + if (!info->opened) + return NULL; + if (info->is_midi) { + rec = &midi_synth_dev; + snd_use_lock_use(&rec->use_lock); + } else { + rec = get_sdev(dev); + if (!rec) + return NULL; + } + if (! rec->opened) { + snd_use_lock_free(&rec->use_lock); + return NULL; + } + return rec; +} + + +/* + * reset note and velocity on each channel. + */ +static void +reset_channels(struct seq_oss_synthinfo *info) +{ + int i; + if (info->ch == NULL || ! info->nr_voices) + return; + for (i = 0; i < info->nr_voices; i++) { + info->ch[i].note = -1; + info->ch[i].vel = 0; + } +} + + +/* + * reset synth device: + * call reset callback. if no callback is defined, send a heartbeat + * event to the corresponding port. + */ +void +snd_seq_oss_synth_reset(struct seq_oss_devinfo *dp, int dev) +{ + struct seq_oss_synth *rec; + struct seq_oss_synthinfo *info; + + info = get_synthinfo_nospec(dp, dev); + if (!info || !info->opened) + return; + if (info->sysex) + info->sysex->len = 0; /* reset sysex */ + reset_channels(info); + if (info->is_midi) { + if (midi_synth_dev.opened <= 0) + return; + snd_seq_oss_midi_reset(dp, info->midi_mapped); + /* reopen the device */ + snd_seq_oss_midi_close(dp, dev); + if (snd_seq_oss_midi_open(dp, info->midi_mapped, + dp->file_mode) < 0) { + midi_synth_dev.opened--; + info->opened = 0; + kfree(info->sysex); + info->sysex = NULL; + kfree(info->ch); + info->ch = NULL; + } + return; + } + + rec = get_sdev(dev); + if (rec == NULL) + return; + if (rec->oper.reset) { + rec->oper.reset(&info->arg); + } else { + struct snd_seq_event ev; + memset(&ev, 0, sizeof(ev)); + snd_seq_oss_fill_addr(dp, &ev, info->arg.addr.client, + info->arg.addr.port); + ev.type = SNDRV_SEQ_EVENT_RESET; + snd_seq_oss_dispatch(dp, &ev, 0, 0); + } + snd_use_lock_free(&rec->use_lock); +} + + +/* + * load a patch record: + * call load_patch callback function + */ +int +snd_seq_oss_synth_load_patch(struct seq_oss_devinfo *dp, int dev, int fmt, + const char __user *buf, int p, int c) +{ + struct seq_oss_synth *rec; + struct seq_oss_synthinfo *info; + int rc; + + info = get_synthinfo_nospec(dp, dev); + if (!info) + return -ENXIO; + + if (info->is_midi) + return 0; + rec = get_synthdev(dp, dev); + if (!rec) + return -ENXIO; + + if (rec->oper.load_patch == NULL) + rc = -ENXIO; + else + rc = rec->oper.load_patch(&info->arg, fmt, buf, p, c); + snd_use_lock_free(&rec->use_lock); + return rc; +} + +/* + * check if the device is valid synth device and return the synth info + */ +struct seq_oss_synthinfo * +snd_seq_oss_synth_info(struct seq_oss_devinfo *dp, int dev) +{ + struct seq_oss_synth *rec; + + rec = get_synthdev(dp, dev); + if (rec) { + snd_use_lock_free(&rec->use_lock); + return get_synthinfo_nospec(dp, dev); + } + return NULL; +} + + +/* + * receive OSS 6 byte sysex packet: + * the full sysex message will be sent if it reaches to the end of data + * (0xff). + */ +int +snd_seq_oss_synth_sysex(struct seq_oss_devinfo *dp, int dev, unsigned char *buf, struct snd_seq_event *ev) +{ + int i, send; + unsigned char *dest; + struct seq_oss_synth_sysex *sysex; + struct seq_oss_synthinfo *info; + + info = snd_seq_oss_synth_info(dp, dev); + if (!info) + return -ENXIO; + + sysex = info->sysex; + if (sysex == NULL) { + sysex = kzalloc(sizeof(*sysex), GFP_KERNEL); + if (sysex == NULL) + return -ENOMEM; + info->sysex = sysex; + } + + send = 0; + dest = sysex->buf + sysex->len; + /* copy 6 byte packet to the buffer */ + for (i = 0; i < 6; i++) { + if (buf[i] == 0xff) { + send = 1; + break; + } + dest[i] = buf[i]; + sysex->len++; + if (sysex->len >= MAX_SYSEX_BUFLEN) { + sysex->len = 0; + sysex->skip = 1; + break; + } + } + + if (sysex->len && send) { + if (sysex->skip) { + sysex->skip = 0; + sysex->len = 0; + return -EINVAL; /* skip */ + } + /* copy the data to event record and send it */ + ev->flags = SNDRV_SEQ_EVENT_LENGTH_VARIABLE; + if (snd_seq_oss_synth_addr(dp, dev, ev)) + return -EINVAL; + ev->data.ext.len = sysex->len; + ev->data.ext.ptr = sysex->buf; + sysex->len = 0; + return 0; + } + + return -EINVAL; /* skip */ +} + +/* + * fill the event source/destination addresses + */ +int +snd_seq_oss_synth_addr(struct seq_oss_devinfo *dp, int dev, struct snd_seq_event *ev) +{ + struct seq_oss_synthinfo *info = snd_seq_oss_synth_info(dp, dev); + + if (!info) + return -EINVAL; + snd_seq_oss_fill_addr(dp, ev, info->arg.addr.client, + info->arg.addr.port); + return 0; +} + + +/* + * OSS compatible ioctl + */ +int +snd_seq_oss_synth_ioctl(struct seq_oss_devinfo *dp, int dev, unsigned int cmd, unsigned long addr) +{ + struct seq_oss_synth *rec; + struct seq_oss_synthinfo *info; + int rc; + + info = get_synthinfo_nospec(dp, dev); + if (!info || info->is_midi) + return -ENXIO; + rec = get_synthdev(dp, dev); + if (!rec) + return -ENXIO; + if (rec->oper.ioctl == NULL) + rc = -ENXIO; + else + rc = rec->oper.ioctl(&info->arg, cmd, addr); + snd_use_lock_free(&rec->use_lock); + return rc; +} + + +/* + * send OSS raw events - SEQ_PRIVATE and SEQ_VOLUME + */ +int +snd_seq_oss_synth_raw_event(struct seq_oss_devinfo *dp, int dev, unsigned char *data, struct snd_seq_event *ev) +{ + struct seq_oss_synthinfo *info; + + info = snd_seq_oss_synth_info(dp, dev); + if (!info || info->is_midi) + return -ENXIO; + ev->type = SNDRV_SEQ_EVENT_OSS; + memcpy(ev->data.raw8.d, data, 8); + return snd_seq_oss_synth_addr(dp, dev, ev); +} + + +/* + * create OSS compatible synth_info record + */ +int +snd_seq_oss_synth_make_info(struct seq_oss_devinfo *dp, int dev, struct synth_info *inf) +{ + struct seq_oss_synth *rec; + struct seq_oss_synthinfo *info = get_synthinfo_nospec(dp, dev); + + if (!info) + return -ENXIO; + + if (info->is_midi) { + struct midi_info minf; + if (snd_seq_oss_midi_make_info(dp, info->midi_mapped, &minf)) + return -ENXIO; + inf->synth_type = SYNTH_TYPE_MIDI; + inf->synth_subtype = 0; + inf->nr_voices = 16; + inf->device = dev; + strscpy(inf->name, minf.name, sizeof(inf->name)); + } else { + rec = get_synthdev(dp, dev); + if (!rec) + return -ENXIO; + inf->synth_type = rec->synth_type; + inf->synth_subtype = rec->synth_subtype; + inf->nr_voices = rec->nr_voices; + inf->device = dev; + strscpy(inf->name, rec->name, sizeof(inf->name)); + snd_use_lock_free(&rec->use_lock); + } + return 0; +} + + +#ifdef CONFIG_SND_PROC_FS +/* + * proc interface + */ +void +snd_seq_oss_synth_info_read(struct snd_info_buffer *buf) +{ + int i; + struct seq_oss_synth *rec; + + snd_iprintf(buf, "\nNumber of synth devices: %d\n", max_synth_devs); + for (i = 0; i < max_synth_devs; i++) { + snd_iprintf(buf, "\nsynth %d: ", i); + rec = get_sdev(i); + if (rec == NULL) { + snd_iprintf(buf, "*empty*\n"); + continue; + } + snd_iprintf(buf, "[%s]\n", rec->name); + snd_iprintf(buf, " type 0x%x : subtype 0x%x : voices %d\n", + rec->synth_type, rec->synth_subtype, + rec->nr_voices); + snd_iprintf(buf, " capabilities : ioctl %s / load_patch %s\n", + enabled_str((long)rec->oper.ioctl), + enabled_str((long)rec->oper.load_patch)); + snd_use_lock_free(&rec->use_lock); + } +} +#endif /* CONFIG_SND_PROC_FS */ -- cgit v1.2.3