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/usb/usx2y/us122l.c | 740 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 740 insertions(+) create mode 100644 sound/usb/usx2y/us122l.c (limited to 'sound/usb/usx2y/us122l.c') diff --git a/sound/usb/usx2y/us122l.c b/sound/usb/usx2y/us122l.c new file mode 100644 index 000000000..e558931cc --- /dev/null +++ b/sound/usb/usx2y/us122l.c @@ -0,0 +1,740 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2007, 2008 Karsten Wiese + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#define MODNAME "US122L" +#include "usb_stream.c" +#include "../usbaudio.h" +#include "../midi.h" +#include "us122l.h" + +MODULE_AUTHOR("Karsten Wiese "); +MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.5"); +MODULE_LICENSE("GPL"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */ + /* Enable this card */ +static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS"."); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS"."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS"."); + +/* driver_info flags */ +#define US122L_FLAG_US144 BIT(0) + +static int snd_us122l_card_used[SNDRV_CARDS]; + +static int us122l_create_usbmidi(struct snd_card *card) +{ + static const struct snd_usb_midi_endpoint_info quirk_data = { + .out_ep = 4, + .in_ep = 3, + .out_cables = 0x001, + .in_cables = 0x001 + }; + static const struct snd_usb_audio_quirk quirk = { + .vendor_name = "US122L", + .product_name = NAME_ALLCAPS, + .ifnum = 1, + .type = QUIRK_MIDI_US122L, + .data = &quirk_data + }; + struct usb_device *dev = US122L(card)->dev; + struct usb_interface *iface = usb_ifnum_to_if(dev, 1); + + return snd_usbmidi_create(card, iface, + &US122L(card)->midi_list, &quirk); +} + +static int us144_create_usbmidi(struct snd_card *card) +{ + static const struct snd_usb_midi_endpoint_info quirk_data = { + .out_ep = 4, + .in_ep = 3, + .out_cables = 0x001, + .in_cables = 0x001 + }; + static const struct snd_usb_audio_quirk quirk = { + .vendor_name = "US144", + .product_name = NAME_ALLCAPS, + .ifnum = 0, + .type = QUIRK_MIDI_US122L, + .data = &quirk_data + }; + struct usb_device *dev = US122L(card)->dev; + struct usb_interface *iface = usb_ifnum_to_if(dev, 0); + + return snd_usbmidi_create(card, iface, + &US122L(card)->midi_list, &quirk); +} + +static void pt_info_set(struct usb_device *dev, u8 v) +{ + int ret; + + ret = usb_control_msg_send(dev, 0, 'I', + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + v, 0, NULL, 0, 1000, GFP_NOIO); + snd_printdd(KERN_DEBUG "%i\n", ret); +} + +static void usb_stream_hwdep_vm_open(struct vm_area_struct *area) +{ + struct us122l *us122l = area->vm_private_data; + + atomic_inc(&us122l->mmap_count); + snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count)); +} + +static vm_fault_t usb_stream_hwdep_vm_fault(struct vm_fault *vmf) +{ + unsigned long offset; + struct page *page; + void *vaddr; + struct us122l *us122l = vmf->vma->vm_private_data; + struct usb_stream *s; + + mutex_lock(&us122l->mutex); + s = us122l->sk.s; + if (!s) + goto unlock; + + offset = vmf->pgoff << PAGE_SHIFT; + if (offset < PAGE_ALIGN(s->read_size)) { + vaddr = (char *)s + offset; + } else { + offset -= PAGE_ALIGN(s->read_size); + if (offset >= PAGE_ALIGN(s->write_size)) + goto unlock; + + vaddr = us122l->sk.write_page + offset; + } + page = virt_to_page(vaddr); + + get_page(page); + mutex_unlock(&us122l->mutex); + + vmf->page = page; + + return 0; +unlock: + mutex_unlock(&us122l->mutex); + return VM_FAULT_SIGBUS; +} + +static void usb_stream_hwdep_vm_close(struct vm_area_struct *area) +{ + struct us122l *us122l = area->vm_private_data; + + atomic_dec(&us122l->mmap_count); + snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count)); +} + +static const struct vm_operations_struct usb_stream_hwdep_vm_ops = { + .open = usb_stream_hwdep_vm_open, + .fault = usb_stream_hwdep_vm_fault, + .close = usb_stream_hwdep_vm_close, +}; + +static int usb_stream_hwdep_open(struct snd_hwdep *hw, struct file *file) +{ + struct us122l *us122l = hw->private_data; + struct usb_interface *iface; + + snd_printdd(KERN_DEBUG "%p %p\n", hw, file); + if (hw->used >= 2) + return -EBUSY; + + if (!us122l->first) + us122l->first = file; + + if (us122l->is_us144) { + iface = usb_ifnum_to_if(us122l->dev, 0); + usb_autopm_get_interface(iface); + } + iface = usb_ifnum_to_if(us122l->dev, 1); + usb_autopm_get_interface(iface); + return 0; +} + +static int usb_stream_hwdep_release(struct snd_hwdep *hw, struct file *file) +{ + struct us122l *us122l = hw->private_data; + struct usb_interface *iface; + + snd_printdd(KERN_DEBUG "%p %p\n", hw, file); + + if (us122l->is_us144) { + iface = usb_ifnum_to_if(us122l->dev, 0); + usb_autopm_put_interface(iface); + } + iface = usb_ifnum_to_if(us122l->dev, 1); + usb_autopm_put_interface(iface); + if (us122l->first == file) + us122l->first = NULL; + mutex_lock(&us122l->mutex); + if (us122l->master == file) + us122l->master = us122l->slave; + + us122l->slave = NULL; + mutex_unlock(&us122l->mutex); + return 0; +} + +static int usb_stream_hwdep_mmap(struct snd_hwdep *hw, + struct file *filp, struct vm_area_struct *area) +{ + unsigned long size = area->vm_end - area->vm_start; + struct us122l *us122l = hw->private_data; + unsigned long offset; + struct usb_stream *s; + int err = 0; + bool read; + + offset = area->vm_pgoff << PAGE_SHIFT; + mutex_lock(&us122l->mutex); + s = us122l->sk.s; + read = offset < s->read_size; + if (read && area->vm_flags & VM_WRITE) { + err = -EPERM; + goto out; + } + snd_printdd(KERN_DEBUG "%lu %u\n", size, + read ? s->read_size : s->write_size); + /* if userspace tries to mmap beyond end of our buffer, fail */ + if (size > PAGE_ALIGN(read ? s->read_size : s->write_size)) { + snd_printk(KERN_WARNING "%lu > %u\n", size, + read ? s->read_size : s->write_size); + err = -EINVAL; + goto out; + } + + area->vm_ops = &usb_stream_hwdep_vm_ops; + area->vm_flags |= VM_DONTDUMP; + if (!read) + area->vm_flags |= VM_DONTEXPAND; + area->vm_private_data = us122l; + atomic_inc(&us122l->mmap_count); +out: + mutex_unlock(&us122l->mutex); + return err; +} + +static __poll_t usb_stream_hwdep_poll(struct snd_hwdep *hw, + struct file *file, poll_table *wait) +{ + struct us122l *us122l = hw->private_data; + unsigned int *polled; + __poll_t mask; + + poll_wait(file, &us122l->sk.sleep, wait); + + mask = EPOLLIN | EPOLLOUT | EPOLLWRNORM | EPOLLERR; + if (mutex_trylock(&us122l->mutex)) { + struct usb_stream *s = us122l->sk.s; + + if (s && s->state == usb_stream_ready) { + if (us122l->first == file) + polled = &s->periods_polled; + else + polled = &us122l->second_periods_polled; + if (*polled != s->periods_done) { + *polled = s->periods_done; + mask = EPOLLIN | EPOLLOUT | EPOLLWRNORM; + } else { + mask = 0; + } + } + mutex_unlock(&us122l->mutex); + } + return mask; +} + +static void us122l_stop(struct us122l *us122l) +{ + struct list_head *p; + + list_for_each(p, &us122l->midi_list) + snd_usbmidi_input_stop(p); + + usb_stream_stop(&us122l->sk); + usb_stream_free(&us122l->sk); +} + +static int us122l_set_sample_rate(struct usb_device *dev, int rate) +{ + unsigned int ep = 0x81; + unsigned char data[3]; + int err; + + data[0] = rate; + data[1] = rate >> 8; + data[2] = rate >> 16; + err = usb_control_msg_send(dev, 0, UAC_SET_CUR, + USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT, + UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3, + 1000, GFP_NOIO); + if (err) + snd_printk(KERN_ERR "%d: cannot set freq %d to ep 0x%x\n", + dev->devnum, rate, ep); + return err; +} + +static bool us122l_start(struct us122l *us122l, + unsigned int rate, unsigned int period_frames) +{ + struct list_head *p; + int err; + unsigned int use_packsize = 0; + bool success = false; + + if (us122l->dev->speed == USB_SPEED_HIGH) { + /* The us-122l's descriptor defaults to iso max_packsize 78, + which isn't needed for samplerates <= 48000. + Lets save some memory: + */ + switch (rate) { + case 44100: + use_packsize = 36; + break; + case 48000: + use_packsize = 42; + break; + case 88200: + use_packsize = 72; + break; + } + } + if (!usb_stream_new(&us122l->sk, us122l->dev, 1, 2, + rate, use_packsize, period_frames, 6)) + goto out; + + err = us122l_set_sample_rate(us122l->dev, rate); + if (err < 0) { + us122l_stop(us122l); + snd_printk(KERN_ERR "us122l_set_sample_rate error\n"); + goto out; + } + err = usb_stream_start(&us122l->sk); + if (err < 0) { + us122l_stop(us122l); + snd_printk(KERN_ERR "%s error %i\n", __func__, err); + goto out; + } + list_for_each(p, &us122l->midi_list) + snd_usbmidi_input_start(p); + success = true; +out: + return success; +} + +static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct usb_stream_config cfg; + struct us122l *us122l = hw->private_data; + struct usb_stream *s; + unsigned int min_period_frames; + int err = 0; + bool high_speed; + + if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS) + return -ENOTTY; + + if (copy_from_user(&cfg, (void __user *)arg, sizeof(cfg))) + return -EFAULT; + + if (cfg.version != USB_STREAM_INTERFACE_VERSION) + return -ENXIO; + + high_speed = us122l->dev->speed == USB_SPEED_HIGH; + if ((cfg.sample_rate != 44100 && cfg.sample_rate != 48000 && + (!high_speed || + (cfg.sample_rate != 88200 && cfg.sample_rate != 96000))) || + cfg.frame_size != 6 || + cfg.period_frames > 0x3000) + return -EINVAL; + + switch (cfg.sample_rate) { + case 44100: + min_period_frames = 48; + break; + case 48000: + min_period_frames = 52; + break; + default: + min_period_frames = 104; + break; + } + if (!high_speed) + min_period_frames <<= 1; + if (cfg.period_frames < min_period_frames) + return -EINVAL; + + snd_power_wait(hw->card); + + mutex_lock(&us122l->mutex); + s = us122l->sk.s; + if (!us122l->master) { + us122l->master = file; + } else if (us122l->master != file) { + if (!s || memcmp(&cfg, &s->cfg, sizeof(cfg))) { + err = -EIO; + goto unlock; + } + us122l->slave = file; + } + if (!s || memcmp(&cfg, &s->cfg, sizeof(cfg)) || + s->state == usb_stream_xrun) { + us122l_stop(us122l); + if (!us122l_start(us122l, cfg.sample_rate, cfg.period_frames)) + err = -EIO; + else + err = 1; + } +unlock: + mutex_unlock(&us122l->mutex); + wake_up_all(&us122l->sk.sleep); + return err; +} + +#define SND_USB_STREAM_ID "USB STREAM" +static int usb_stream_hwdep_new(struct snd_card *card) +{ + int err; + struct snd_hwdep *hw; + struct usb_device *dev = US122L(card)->dev; + + err = snd_hwdep_new(card, SND_USB_STREAM_ID, 0, &hw); + if (err < 0) + return err; + + hw->iface = SNDRV_HWDEP_IFACE_USB_STREAM; + hw->private_data = US122L(card); + hw->ops.open = usb_stream_hwdep_open; + hw->ops.release = usb_stream_hwdep_release; + hw->ops.ioctl = usb_stream_hwdep_ioctl; + hw->ops.ioctl_compat = usb_stream_hwdep_ioctl; + hw->ops.mmap = usb_stream_hwdep_mmap; + hw->ops.poll = usb_stream_hwdep_poll; + + sprintf(hw->name, "/dev/bus/usb/%03d/%03d/hwdeppcm", + dev->bus->busnum, dev->devnum); + return 0; +} + +static bool us122l_create_card(struct snd_card *card) +{ + int err; + struct us122l *us122l = US122L(card); + + if (us122l->is_us144) { + err = usb_set_interface(us122l->dev, 0, 1); + if (err) { + snd_printk(KERN_ERR "usb_set_interface error\n"); + return false; + } + } + err = usb_set_interface(us122l->dev, 1, 1); + if (err) { + snd_printk(KERN_ERR "usb_set_interface error\n"); + return false; + } + + pt_info_set(us122l->dev, 0x11); + pt_info_set(us122l->dev, 0x10); + + if (!us122l_start(us122l, 44100, 256)) + return false; + + if (us122l->is_us144) + err = us144_create_usbmidi(card); + else + err = us122l_create_usbmidi(card); + if (err < 0) { + snd_printk(KERN_ERR "us122l_create_usbmidi error %i\n", err); + goto stop; + } + err = usb_stream_hwdep_new(card); + if (err < 0) { + /* release the midi resources */ + struct list_head *p; + + list_for_each(p, &us122l->midi_list) + snd_usbmidi_disconnect(p); + + goto stop; + } + return true; + +stop: + us122l_stop(us122l); + return false; +} + +static void snd_us122l_free(struct snd_card *card) +{ + struct us122l *us122l = US122L(card); + int index = us122l->card_index; + + if (index >= 0 && index < SNDRV_CARDS) + snd_us122l_card_used[index] = 0; +} + +static int usx2y_create_card(struct usb_device *device, + struct usb_interface *intf, + struct snd_card **cardp, + unsigned long flags) +{ + int dev; + struct snd_card *card; + int err; + + for (dev = 0; dev < SNDRV_CARDS; ++dev) + if (enable[dev] && !snd_us122l_card_used[dev]) + break; + if (dev >= SNDRV_CARDS) + return -ENODEV; + err = snd_card_new(&intf->dev, index[dev], id[dev], THIS_MODULE, + sizeof(struct us122l), &card); + if (err < 0) + return err; + snd_us122l_card_used[US122L(card)->card_index = dev] = 1; + card->private_free = snd_us122l_free; + US122L(card)->dev = device; + mutex_init(&US122L(card)->mutex); + init_waitqueue_head(&US122L(card)->sk.sleep); + US122L(card)->is_us144 = flags & US122L_FLAG_US144; + INIT_LIST_HEAD(&US122L(card)->midi_list); + strcpy(card->driver, "USB "NAME_ALLCAPS""); + sprintf(card->shortname, "TASCAM "NAME_ALLCAPS""); + sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)", + card->shortname, + le16_to_cpu(device->descriptor.idVendor), + le16_to_cpu(device->descriptor.idProduct), + 0, + US122L(card)->dev->bus->busnum, + US122L(card)->dev->devnum + ); + *cardp = card; + return 0; +} + +static int us122l_usb_probe(struct usb_interface *intf, + const struct usb_device_id *device_id, + struct snd_card **cardp) +{ + struct usb_device *device = interface_to_usbdev(intf); + struct snd_card *card; + int err; + + err = usx2y_create_card(device, intf, &card, device_id->driver_info); + if (err < 0) + return err; + + if (!us122l_create_card(card)) { + snd_card_free(card); + return -EINVAL; + } + + err = snd_card_register(card); + if (err < 0) { + snd_card_free(card); + return err; + } + + usb_get_intf(usb_ifnum_to_if(device, 0)); + usb_get_dev(device); + *cardp = card; + return 0; +} + +static int snd_us122l_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct usb_device *device = interface_to_usbdev(intf); + struct snd_card *card; + int err; + + if (id->driver_info & US122L_FLAG_US144 && + device->speed == USB_SPEED_HIGH) { + snd_printk(KERN_ERR "disable ehci-hcd to run US-144\n"); + return -ENODEV; + } + + snd_printdd(KERN_DEBUG"%p:%i\n", + intf, intf->cur_altsetting->desc.bInterfaceNumber); + if (intf->cur_altsetting->desc.bInterfaceNumber != 1) + return 0; + + err = us122l_usb_probe(usb_get_intf(intf), id, &card); + if (err < 0) { + usb_put_intf(intf); + return err; + } + + usb_set_intfdata(intf, card); + return 0; +} + +static void snd_us122l_disconnect(struct usb_interface *intf) +{ + struct snd_card *card; + struct us122l *us122l; + struct list_head *p; + + card = usb_get_intfdata(intf); + if (!card) + return; + + snd_card_disconnect(card); + + us122l = US122L(card); + mutex_lock(&us122l->mutex); + us122l_stop(us122l); + mutex_unlock(&us122l->mutex); + + /* release the midi resources */ + list_for_each(p, &us122l->midi_list) { + snd_usbmidi_disconnect(p); + } + + usb_put_intf(usb_ifnum_to_if(us122l->dev, 0)); + usb_put_intf(usb_ifnum_to_if(us122l->dev, 1)); + usb_put_dev(us122l->dev); + + while (atomic_read(&us122l->mmap_count)) + msleep(500); + + snd_card_free(card); +} + +static int snd_us122l_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct snd_card *card; + struct us122l *us122l; + struct list_head *p; + + card = usb_get_intfdata(intf); + if (!card) + return 0; + snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); + + us122l = US122L(card); + if (!us122l) + return 0; + + list_for_each(p, &us122l->midi_list) + snd_usbmidi_input_stop(p); + + mutex_lock(&us122l->mutex); + usb_stream_stop(&us122l->sk); + mutex_unlock(&us122l->mutex); + + return 0; +} + +static int snd_us122l_resume(struct usb_interface *intf) +{ + struct snd_card *card; + struct us122l *us122l; + struct list_head *p; + int err; + + card = usb_get_intfdata(intf); + if (!card) + return 0; + + us122l = US122L(card); + if (!us122l) + return 0; + + mutex_lock(&us122l->mutex); + /* needed, doesn't restart without: */ + if (us122l->is_us144) { + err = usb_set_interface(us122l->dev, 0, 1); + if (err) { + snd_printk(KERN_ERR "usb_set_interface error\n"); + goto unlock; + } + } + err = usb_set_interface(us122l->dev, 1, 1); + if (err) { + snd_printk(KERN_ERR "usb_set_interface error\n"); + goto unlock; + } + + pt_info_set(us122l->dev, 0x11); + pt_info_set(us122l->dev, 0x10); + + err = us122l_set_sample_rate(us122l->dev, + us122l->sk.s->cfg.sample_rate); + if (err < 0) { + snd_printk(KERN_ERR "us122l_set_sample_rate error\n"); + goto unlock; + } + err = usb_stream_start(&us122l->sk); + if (err) + goto unlock; + + list_for_each(p, &us122l->midi_list) + snd_usbmidi_input_start(p); +unlock: + mutex_unlock(&us122l->mutex); + snd_power_change_state(card, SNDRV_CTL_POWER_D0); + return err; +} + +static const struct usb_device_id snd_us122l_usb_id_table[] = { + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x0644, + .idProduct = USB_ID_US122L + }, + { /* US-144 only works at USB1.1! Disable module ehci-hcd. */ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x0644, + .idProduct = USB_ID_US144, + .driver_info = US122L_FLAG_US144 + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x0644, + .idProduct = USB_ID_US122MKII + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x0644, + .idProduct = USB_ID_US144MKII, + .driver_info = US122L_FLAG_US144 + }, + { /* terminator */ } +}; +MODULE_DEVICE_TABLE(usb, snd_us122l_usb_id_table); + +static struct usb_driver snd_us122l_usb_driver = { + .name = "snd-usb-us122l", + .probe = snd_us122l_probe, + .disconnect = snd_us122l_disconnect, + .suspend = snd_us122l_suspend, + .resume = snd_us122l_resume, + .reset_resume = snd_us122l_resume, + .id_table = snd_us122l_usb_id_table, + .supports_autosuspend = 1 +}; + +module_usb_driver(snd_us122l_usb_driver); -- cgit v1.2.3