Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

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().
  ...

1 files changed, 1064 insertions, 0 deletions

diff --git a/sound/drivers/mts64.c b/sound/drivers/mts64.c
new file mode 100644
index 000000000..f0d34cf70
--- /dev/null
+++ b/sound/drivers/mts64.c
@@ -0,0 +1,1064 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*     
+ *   ALSA Driver for Ego Systems Inc. (ESI) Miditerminal 4140
+ *   Copyright (c) 2006 by Matthias König <mk@phasorlab.de>
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/parport.h>
+#include <linux/spinlock.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/rawmidi.h>
+#include <sound/control.h>
+
+#define CARD_NAME "Miditerminal 4140"
+#define DRIVER_NAME "MTS64"
+#define PLATFORM_DRIVER "snd_mts64"
+
+static int index[SNDRV_CARDS]  = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS]   = SNDRV_DEFAULT_STR;
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+static struct platform_device *platform_devices[SNDRV_CARDS]; 
+static int device_count;
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
+
+MODULE_AUTHOR("Matthias Koenig <mk@phasorlab.de>");
+MODULE_DESCRIPTION("ESI Miditerminal 4140");
+MODULE_LICENSE("GPL");
+
+/*********************************************************************
+ * Chip specific
+ *********************************************************************/
+#define MTS64_NUM_INPUT_PORTS 5
+#define MTS64_NUM_OUTPUT_PORTS 4
+#define MTS64_SMPTE_SUBSTREAM 4
+
+struct mts64 {
+	spinlock_t lock;
+	struct snd_card *card;
+	struct snd_rawmidi *rmidi;
+	struct pardevice *pardev;
+	int open_count;
+	int current_midi_output_port;
+	int current_midi_input_port;
+	u8 mode[MTS64_NUM_INPUT_PORTS];
+	struct snd_rawmidi_substream *midi_input_substream[MTS64_NUM_INPUT_PORTS];
+	int smpte_switch;
+	u8 time[4]; /* [0]=hh, [1]=mm, [2]=ss, [3]=ff */
+	u8 fps;
+};
+
+static int snd_mts64_free(struct mts64 *mts)
+{
+	kfree(mts);
+	return 0;
+}
+
+static int snd_mts64_create(struct snd_card *card,
+			    struct pardevice *pardev,
+			    struct mts64 **rchip)
+{
+	struct mts64 *mts;
+
+	*rchip = NULL;
+
+	mts = kzalloc(sizeof(struct mts64), GFP_KERNEL);
+	if (mts == NULL) 
+		return -ENOMEM;
+
+	/* Init chip specific data */
+	spin_lock_init(&mts->lock);
+	mts->card = card;
+	mts->pardev = pardev;
+	mts->current_midi_output_port = -1;
+	mts->current_midi_input_port = -1;
+
+	*rchip = mts;
+
+	return 0;
+}
+
+/*********************************************************************
+ * HW register related constants
+ *********************************************************************/
+
+/* Status Bits */
+#define MTS64_STAT_BSY             0x80
+#define MTS64_STAT_BIT_SET         0x20  /* readout process, bit is set */
+#define MTS64_STAT_PORT            0x10  /* read byte is a port number */
+
+/* Control Bits */
+#define MTS64_CTL_READOUT          0x08  /* enable readout */
+#define MTS64_CTL_WRITE_CMD        0x06  
+#define MTS64_CTL_WRITE_DATA       0x02  
+#define MTS64_CTL_STROBE           0x01  
+
+/* Command */
+#define MTS64_CMD_RESET            0xfe
+#define MTS64_CMD_PROBE            0x8f  /* Used in probing procedure */
+#define MTS64_CMD_SMPTE_SET_TIME   0xe8
+#define MTS64_CMD_SMPTE_SET_FPS    0xee
+#define MTS64_CMD_SMPTE_STOP       0xef
+#define MTS64_CMD_SMPTE_FPS_24     0xe3
+#define MTS64_CMD_SMPTE_FPS_25     0xe2
+#define MTS64_CMD_SMPTE_FPS_2997   0xe4 
+#define MTS64_CMD_SMPTE_FPS_30D    0xe1
+#define MTS64_CMD_SMPTE_FPS_30     0xe0
+#define MTS64_CMD_COM_OPEN         0xf8  /* setting the communication mode */
+#define MTS64_CMD_COM_CLOSE1       0xff  /* clearing communication mode */
+#define MTS64_CMD_COM_CLOSE2       0xf5
+
+/*********************************************************************
+ * Hardware specific functions
+ *********************************************************************/
+static void mts64_enable_readout(struct parport *p);
+static void mts64_disable_readout(struct parport *p);
+static int mts64_device_ready(struct parport *p);
+static int mts64_device_init(struct parport *p);
+static int mts64_device_open(struct mts64 *mts);
+static int mts64_device_close(struct mts64 *mts);
+static u8 mts64_map_midi_input(u8 c);
+static int mts64_probe(struct parport *p);
+static u16 mts64_read(struct parport *p);
+static u8 mts64_read_char(struct parport *p);
+static void mts64_smpte_start(struct parport *p,
+			      u8 hours, u8 minutes,
+			      u8 seconds, u8 frames,
+			      u8 idx);
+static void mts64_smpte_stop(struct parport *p);
+static void mts64_write_command(struct parport *p, u8 c);
+static void mts64_write_data(struct parport *p, u8 c);
+static void mts64_write_midi(struct mts64 *mts, u8 c, int midiport);
+
+
+/*  Enables the readout procedure
+ *
+ *  Before we can read a midi byte from the device, we have to set
+ *  bit 3 of control port.
+ */
+static void mts64_enable_readout(struct parport *p)
+{
+	u8 c;
+
+	c = parport_read_control(p);
+	c |= MTS64_CTL_READOUT;
+	parport_write_control(p, c); 
+}
+
+/*  Disables readout 
+ *
+ *  Readout is disabled by clearing bit 3 of control
+ */
+static void mts64_disable_readout(struct parport *p)
+{
+	u8 c;
+
+	c = parport_read_control(p);
+	c &= ~MTS64_CTL_READOUT;
+	parport_write_control(p, c);
+}
+
+/*  waits for device ready
+ *
+ *  Checks if BUSY (Bit 7 of status) is clear
+ *  1 device ready
+ *  0 failure
+ */
+static int mts64_device_ready(struct parport *p)
+{
+	int i;
+	u8 c;
+
+	for (i = 0; i < 0xffff; ++i) {
+		c = parport_read_status(p);
+		c &= MTS64_STAT_BSY;
+		if (c != 0) 
+			return 1;
+	} 
+
+	return 0;
+}
+
+/*  Init device (LED blinking startup magic)
+ *
+ *  Returns:
+ *  0 init ok
+ *  -EIO failure
+ */
+static int mts64_device_init(struct parport *p)
+{
+	int i;
+
+	mts64_write_command(p, MTS64_CMD_RESET);
+
+	for (i = 0; i < 64; ++i) {
+		msleep(100);
+
+		if (mts64_probe(p) == 0) {
+			/* success */
+			mts64_disable_readout(p);
+			return 0;
+		}
+	}
+	mts64_disable_readout(p);
+
+	return -EIO;
+}
+
+/* 
+ *  Opens the device (set communication mode)
+ */
+static int mts64_device_open(struct mts64 *mts)
+{
+	int i;
+	struct parport *p = mts->pardev->port;
+
+	for (i = 0; i < 5; ++i)
+		mts64_write_command(p, MTS64_CMD_COM_OPEN);
+
+	return 0;
+}
+
+/*  
+ *  Close device (clear communication mode)
+ */
+static int mts64_device_close(struct mts64 *mts)
+{
+	int i;
+	struct parport *p = mts->pardev->port;
+
+	for (i = 0; i < 5; ++i) {
+		mts64_write_command(p, MTS64_CMD_COM_CLOSE1);
+		mts64_write_command(p, MTS64_CMD_COM_CLOSE2);
+	}
+
+	return 0;
+}
+
+/*  map hardware port to substream number
+ * 
+ *  When reading a byte from the device, the device tells us
+ *  on what port the byte is. This HW port has to be mapped to
+ *  the midiport (substream number).
+ *  substream 0-3 are Midiports 1-4
+ *  substream 4 is SMPTE Timecode
+ *  The mapping is done by the table:
+ *  HW | 0 | 1 | 2 | 3 | 4 
+ *  SW | 0 | 1 | 4 | 2 | 3
+ */
+static u8 mts64_map_midi_input(u8 c)
+{
+	static const u8 map[] = { 0, 1, 4, 2, 3 };
+
+	return map[c];
+}
+
+
+/*  Probe parport for device
+ *
+ *  Do we have a Miditerminal 4140 on parport? 
+ *  Returns:
+ *  0       device found
+ *  -ENODEV no device
+ */
+static int mts64_probe(struct parport *p)
+{
+	u8 c;
+
+	mts64_smpte_stop(p);
+	mts64_write_command(p, MTS64_CMD_PROBE);
+
+	msleep(50);
+	
+	c = mts64_read(p);
+
+	c &= 0x00ff;
+	if (c != MTS64_CMD_PROBE) 
+		return -ENODEV;
+	else 
+		return 0;
+
+}
+
+/*  Read byte incl. status from device
+ *
+ *  Returns:
+ *  data in lower 8 bits and status in upper 8 bits
+ */
+static u16 mts64_read(struct parport *p)
+{
+	u8 data, status;
+
+	mts64_device_ready(p);
+	mts64_enable_readout(p);
+	status = parport_read_status(p);
+	data = mts64_read_char(p);
+	mts64_disable_readout(p);
+
+	return (status << 8) | data;
+}
+
+/*  Read a byte from device
+ *
+ *  Note, that readout mode has to be enabled.
+ *  readout procedure is as follows: 
+ *  - Write number of the Bit to read to DATA
+ *  - Read STATUS
+ *  - Bit 5 of STATUS indicates if Bit is set
+ *
+ *  Returns:
+ *  Byte read from device
+ */
+static u8 mts64_read_char(struct parport *p)
+{
+	u8 c = 0;
+	u8 status;
+	u8 i;
+
+	for (i = 0; i < 8; ++i) {
+		parport_write_data(p, i);
+		c >>= 1;
+		status = parport_read_status(p);
+		if (status & MTS64_STAT_BIT_SET) 
+			c |= 0x80;
+	}
+	
+	return c;
+}
+
+/*  Starts SMPTE Timecode generation
+ *
+ *  The device creates SMPTE Timecode by hardware.
+ *  0 24 fps
+ *  1 25 fps
+ *  2 29.97 fps
+ *  3 30 fps (Drop-frame)
+ *  4 30 fps
+ */
+static void mts64_smpte_start(struct parport *p,
+			      u8 hours, u8 minutes,
+			      u8 seconds, u8 frames,
+			      u8 idx)
+{
+	static const u8 fps[5] = { MTS64_CMD_SMPTE_FPS_24,
+			     MTS64_CMD_SMPTE_FPS_25,
+			     MTS64_CMD_SMPTE_FPS_2997, 
+			     MTS64_CMD_SMPTE_FPS_30D,
+			     MTS64_CMD_SMPTE_FPS_30    };
+
+	mts64_write_command(p, MTS64_CMD_SMPTE_SET_TIME);
+	mts64_write_command(p, frames);
+	mts64_write_command(p, seconds);
+	mts64_write_command(p, minutes);
+	mts64_write_command(p, hours);
+
+	mts64_write_command(p, MTS64_CMD_SMPTE_SET_FPS);
+	mts64_write_command(p, fps[idx]);
+}
+
+/*  Stops SMPTE Timecode generation
+ */
+static void mts64_smpte_stop(struct parport *p)
+{
+	mts64_write_command(p, MTS64_CMD_SMPTE_STOP);
+}
+
+/*  Write a command byte to device
+ */
+static void mts64_write_command(struct parport *p, u8 c)
+{
+	mts64_device_ready(p);
+
+	parport_write_data(p, c);
+
+	parport_write_control(p, MTS64_CTL_WRITE_CMD);
+	parport_write_control(p, MTS64_CTL_WRITE_CMD | MTS64_CTL_STROBE);
+	parport_write_control(p, MTS64_CTL_WRITE_CMD);
+}
+
+/*  Write a data byte to device 
+ */
+static void mts64_write_data(struct parport *p, u8 c)
+{
+	mts64_device_ready(p);
+
+	parport_write_data(p, c);
+
+	parport_write_control(p, MTS64_CTL_WRITE_DATA);
+	parport_write_control(p, MTS64_CTL_WRITE_DATA | MTS64_CTL_STROBE);
+	parport_write_control(p, MTS64_CTL_WRITE_DATA);
+}
+
+/*  Write a MIDI byte to midiport
+ *
+ *  midiport ranges from 0-3 and maps to Ports 1-4
+ *  assumptions: communication mode is on
+ */
+static void mts64_write_midi(struct mts64 *mts, u8 c,
+			     int midiport)
+{
+	struct parport *p = mts->pardev->port;
+
+	/* check current midiport */
+	if (mts->current_midi_output_port != midiport)
+		mts64_write_command(p, midiport);
+
+	/* write midi byte */
+	mts64_write_data(p, c);
+}
+
+/*********************************************************************
+ * Control elements
+ *********************************************************************/
+
+/* SMPTE Switch */
+#define snd_mts64_ctl_smpte_switch_info		snd_ctl_boolean_mono_info
+
+static int snd_mts64_ctl_smpte_switch_get(struct snd_kcontrol* kctl,
+					  struct snd_ctl_elem_value *uctl)
+{
+	struct mts64 *mts = snd_kcontrol_chip(kctl);
+
+	spin_lock_irq(&mts->lock);
+	uctl->value.integer.value[0] = mts->smpte_switch;
+	spin_unlock_irq(&mts->lock);
+
+	return 0;
+}
+
+/* smpte_switch is not accessed from IRQ handler, so we just need
+   to protect the HW access */
+static int snd_mts64_ctl_smpte_switch_put(struct snd_kcontrol* kctl,
+					  struct snd_ctl_elem_value *uctl)
+{
+	struct mts64 *mts = snd_kcontrol_chip(kctl);
+	int changed = 0;
+	int val = !!uctl->value.integer.value[0];
+
+	spin_lock_irq(&mts->lock);
+	if (mts->smpte_switch == val)
+		goto __out;
+
+	changed = 1;
+	mts->smpte_switch = val;
+	if (mts->smpte_switch) {
+		mts64_smpte_start(mts->pardev->port,
+				  mts->time[0], mts->time[1],
+				  mts->time[2], mts->time[3],
+				  mts->fps);
+	} else {
+		mts64_smpte_stop(mts->pardev->port);
+	}
+__out:
+	spin_unlock_irq(&mts->lock);
+	return changed;
+}
+
+static const struct snd_kcontrol_new mts64_ctl_smpte_switch = {
+	.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
+	.name  = "SMPTE Playback Switch",
+	.index = 0,
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.private_value = 0,
+	.info = snd_mts64_ctl_smpte_switch_info,
+	.get  = snd_mts64_ctl_smpte_switch_get,
+	.put  = snd_mts64_ctl_smpte_switch_put
+};
+
+/* Time */
+static int snd_mts64_ctl_smpte_time_h_info(struct snd_kcontrol *kctl,
+					   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 23;
+	return 0;
+}
+
+static int snd_mts64_ctl_smpte_time_f_info(struct snd_kcontrol *kctl,
+					   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 99;
+	return 0;
+}
+
+static int snd_mts64_ctl_smpte_time_info(struct snd_kcontrol *kctl,
+					 struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 59;
+	return 0;
+}
+
+static int snd_mts64_ctl_smpte_time_get(struct snd_kcontrol *kctl,
+					struct snd_ctl_elem_value *uctl)
+{
+	struct mts64 *mts = snd_kcontrol_chip(kctl);
+	int idx = kctl->private_value;
+
+	spin_lock_irq(&mts->lock);
+	uctl->value.integer.value[0] = mts->time[idx];
+	spin_unlock_irq(&mts->lock);
+
+	return 0;
+}
+
+static int snd_mts64_ctl_smpte_time_put(struct snd_kcontrol *kctl,
+					struct snd_ctl_elem_value *uctl)
+{
+	struct mts64 *mts = snd_kcontrol_chip(kctl);
+	int idx = kctl->private_value;
+	unsigned int time = uctl->value.integer.value[0] % 60;
+	int changed = 0;
+
+	spin_lock_irq(&mts->lock);
+	if (mts->time[idx] != time) {
+		changed = 1;
+		mts->time[idx] = time;
+	}
+	spin_unlock_irq(&mts->lock);
+
+	return changed;
+}
+
+static const struct snd_kcontrol_new mts64_ctl_smpte_time_hours = {
+	.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
+	.name  = "SMPTE Time Hours",
+	.index = 0,
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.private_value = 0,
+	.info = snd_mts64_ctl_smpte_time_h_info,
+	.get  = snd_mts64_ctl_smpte_time_get,
+	.put  = snd_mts64_ctl_smpte_time_put
+};
+
+static const struct snd_kcontrol_new mts64_ctl_smpte_time_minutes = {
+	.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
+	.name  = "SMPTE Time Minutes",
+	.index = 0,
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.private_value = 1,
+	.info = snd_mts64_ctl_smpte_time_info,
+	.get  = snd_mts64_ctl_smpte_time_get,
+	.put  = snd_mts64_ctl_smpte_time_put
+};
+
+static const struct snd_kcontrol_new mts64_ctl_smpte_time_seconds = {
+	.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
+	.name  = "SMPTE Time Seconds",
+	.index = 0,
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.private_value = 2,
+	.info = snd_mts64_ctl_smpte_time_info,
+	.get  = snd_mts64_ctl_smpte_time_get,
+	.put  = snd_mts64_ctl_smpte_time_put
+};
+
+static const struct snd_kcontrol_new mts64_ctl_smpte_time_frames = {
+	.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
+	.name  = "SMPTE Time Frames",
+	.index = 0,
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.private_value = 3,
+	.info = snd_mts64_ctl_smpte_time_f_info,
+	.get  = snd_mts64_ctl_smpte_time_get,
+	.put  = snd_mts64_ctl_smpte_time_put
+};
+
+/* FPS */
+static int snd_mts64_ctl_smpte_fps_info(struct snd_kcontrol *kctl,
+					struct snd_ctl_elem_info *uinfo)
+{
+	static const char * const texts[5] = {
+		"24", "25", "29.97", "30D", "30"
+	};
+
+	return snd_ctl_enum_info(uinfo, 1, 5, texts);
+}
+
+static int snd_mts64_ctl_smpte_fps_get(struct snd_kcontrol *kctl,
+				       struct snd_ctl_elem_value *uctl)
+{
+	struct mts64 *mts = snd_kcontrol_chip(kctl);
+
+	spin_lock_irq(&mts->lock);
+	uctl->value.enumerated.item[0] = mts->fps;
+	spin_unlock_irq(&mts->lock);
+
+	return 0;
+}
+
+static int snd_mts64_ctl_smpte_fps_put(struct snd_kcontrol *kctl,
+				       struct snd_ctl_elem_value *uctl)
+{
+	struct mts64 *mts = snd_kcontrol_chip(kctl);
+	int changed = 0;
+
+	if (uctl->value.enumerated.item[0] >= 5)
+		return -EINVAL;
+	spin_lock_irq(&mts->lock);
+	if (mts->fps != uctl->value.enumerated.item[0]) {
+		changed = 1;
+		mts->fps = uctl->value.enumerated.item[0];
+	}
+	spin_unlock_irq(&mts->lock);
+
+	return changed;
+}
+
+static const struct snd_kcontrol_new mts64_ctl_smpte_fps = {
+	.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
+	.name  = "SMPTE Fps",
+	.index = 0,
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.private_value = 0,
+	.info  = snd_mts64_ctl_smpte_fps_info,
+	.get   = snd_mts64_ctl_smpte_fps_get,
+	.put   = snd_mts64_ctl_smpte_fps_put
+};
+
+
+static int snd_mts64_ctl_create(struct snd_card *card,
+				struct mts64 *mts)
+{
+	int err, i;
+	static const struct snd_kcontrol_new *control[] = {
+		&mts64_ctl_smpte_switch,
+		&mts64_ctl_smpte_time_hours,
+		&mts64_ctl_smpte_time_minutes,
+		&mts64_ctl_smpte_time_seconds,
+		&mts64_ctl_smpte_time_frames,
+		&mts64_ctl_smpte_fps,
+	        NULL  };
+
+	for (i = 0; control[i]; ++i) {
+		err = snd_ctl_add(card, snd_ctl_new1(control[i], mts));
+		if (err < 0) {
+			snd_printd("Cannot create control: %s\n", 
+				   control[i]->name);
+			return err;
+		}
+	}
+
+	return 0;
+}
+
+/*********************************************************************
+ * Rawmidi
+ *********************************************************************/
+#define MTS64_MODE_INPUT_TRIGGERED 0x01
+
+static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream)
+{
+	struct mts64 *mts = substream->rmidi->private_data;
+
+	if (mts->open_count == 0) {
+		/* We don't need a spinlock here, because this is just called 
+		   if the device has not been opened before. 
+		   So there aren't any IRQs from the device */
+		mts64_device_open(mts);
+
+		msleep(50);
+	}
+	++(mts->open_count);
+
+	return 0;
+}
+
+static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream)
+{
+	struct mts64 *mts = substream->rmidi->private_data;
+	unsigned long flags;
+
+	--(mts->open_count);
+	if (mts->open_count == 0) {
+		/* We need the spinlock_irqsave here because we can still
+		   have IRQs at this point */
+		spin_lock_irqsave(&mts->lock, flags);
+		mts64_device_close(mts);
+		spin_unlock_irqrestore(&mts->lock, flags);
+
+		msleep(500);
+
+	} else if (mts->open_count < 0)
+		mts->open_count = 0;
+
+	return 0;
+}
+
+static void snd_mts64_rawmidi_output_trigger(struct snd_rawmidi_substream *substream,
+					     int up)
+{
+	struct mts64 *mts = substream->rmidi->private_data;
+	u8 data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&mts->lock, flags);
+	while (snd_rawmidi_transmit_peek(substream, &data, 1) == 1) {
+		mts64_write_midi(mts, data, substream->number+1);
+		snd_rawmidi_transmit_ack(substream, 1);
+	}
+	spin_unlock_irqrestore(&mts->lock, flags);
+}
+
+static void snd_mts64_rawmidi_input_trigger(struct snd_rawmidi_substream *substream,
+					    int up)
+{
+	struct mts64 *mts = substream->rmidi->private_data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&mts->lock, flags);
+	if (up)
+		mts->mode[substream->number] |= MTS64_MODE_INPUT_TRIGGERED;
+	else
+ 		mts->mode[substream->number] &= ~MTS64_MODE_INPUT_TRIGGERED;
+	
+	spin_unlock_irqrestore(&mts->lock, flags);
+}
+
+static const struct snd_rawmidi_ops snd_mts64_rawmidi_output_ops = {
+	.open    = snd_mts64_rawmidi_open,
+	.close   = snd_mts64_rawmidi_close,
+	.trigger = snd_mts64_rawmidi_output_trigger
+};
+
+static const struct snd_rawmidi_ops snd_mts64_rawmidi_input_ops = {
+	.open    = snd_mts64_rawmidi_open,
+	.close   = snd_mts64_rawmidi_close,
+	.trigger = snd_mts64_rawmidi_input_trigger
+};
+
+/* Create and initialize the rawmidi component */
+static int snd_mts64_rawmidi_create(struct snd_card *card)
+{
+	struct mts64 *mts = card->private_data;
+	struct snd_rawmidi *rmidi;
+	struct snd_rawmidi_substream *substream;
+	struct list_head *list;
+	int err;
+	
+	err = snd_rawmidi_new(card, CARD_NAME, 0, 
+			      MTS64_NUM_OUTPUT_PORTS, 
+			      MTS64_NUM_INPUT_PORTS, 
+			      &rmidi);
+	if (err < 0) 
+		return err;
+
+	rmidi->private_data = mts;
+	strcpy(rmidi->name, CARD_NAME);
+	rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT |
+		            SNDRV_RAWMIDI_INFO_INPUT |
+                            SNDRV_RAWMIDI_INFO_DUPLEX;
+
+	mts->rmidi = rmidi;
+
+	/* register rawmidi ops */
+	snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, 
+			    &snd_mts64_rawmidi_output_ops);
+	snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, 
+			    &snd_mts64_rawmidi_input_ops);
+
+	/* name substreams */
+	/* output */
+	list_for_each(list, 
+		      &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) {
+		substream = list_entry(list, struct snd_rawmidi_substream, list);
+		sprintf(substream->name,
+			"Miditerminal %d", substream->number+1);
+	}
+	/* input */
+	list_for_each(list, 
+		      &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) {
+		substream = list_entry(list, struct snd_rawmidi_substream, list);
+		mts->midi_input_substream[substream->number] = substream;
+		switch(substream->number) {
+		case MTS64_SMPTE_SUBSTREAM:
+			strcpy(substream->name, "Miditerminal SMPTE");
+			break;
+		default:
+			sprintf(substream->name,
+				"Miditerminal %d", substream->number+1);
+		}
+	}
+
+	/* controls */
+	err = snd_mts64_ctl_create(card, mts);
+
+	return err;
+}
+
+/*********************************************************************
+ * parport stuff
+ *********************************************************************/
+static void snd_mts64_interrupt(void *private)
+{
+	struct mts64 *mts = ((struct snd_card*)private)->private_data;
+	u16 ret;
+	u8 status, data;
+	struct snd_rawmidi_substream *substream;
+
+	if (!mts)
+		return;
+
+	spin_lock(&mts->lock);
+	ret = mts64_read(mts->pardev->port);
+	data = ret & 0x00ff;
+	status = ret >> 8;
+
+	if (status & MTS64_STAT_PORT) {
+		mts->current_midi_input_port = mts64_map_midi_input(data);
+	} else {
+		if (mts->current_midi_input_port == -1) 
+			goto __out;
+		substream = mts->midi_input_substream[mts->current_midi_input_port];
+		if (mts->mode[substream->number] & MTS64_MODE_INPUT_TRIGGERED)
+			snd_rawmidi_receive(substream, &data, 1);
+	}
+__out:
+	spin_unlock(&mts->lock);
+}
+
+static void snd_mts64_attach(struct parport *p)
+{
+	struct platform_device *device;
+
+	device = platform_device_alloc(PLATFORM_DRIVER, device_count);
+	if (!device)
+		return;
+
+	/* Temporary assignment to forward the parport */
+	platform_set_drvdata(device, p);
+
+	if (platform_device_add(device) < 0) {
+		platform_device_put(device);
+		return;
+	}
+
+	/* Since we dont get the return value of probe
+	 * We need to check if device probing succeeded or not */
+	if (!platform_get_drvdata(device)) {
+		platform_device_unregister(device);
+		return;
+	}
+
+	/* register device in global table */
+	platform_devices[device_count] = device;
+	device_count++;
+}
+
+static void snd_mts64_detach(struct parport *p)
+{
+	/* nothing to do here */
+}
+
+static int snd_mts64_dev_probe(struct pardevice *pardev)
+{
+	if (strcmp(pardev->name, DRIVER_NAME))
+		return -ENODEV;
+
+	return 0;
+}
+
+static struct parport_driver mts64_parport_driver = {
+	.name		= "mts64",
+	.probe		= snd_mts64_dev_probe,
+	.match_port	= snd_mts64_attach,
+	.detach		= snd_mts64_detach,
+	.devmodel	= true,
+};
+
+/*********************************************************************
+ * platform stuff
+ *********************************************************************/
+static void snd_mts64_card_private_free(struct snd_card *card)
+{
+	struct mts64 *mts = card->private_data;
+	struct pardevice *pardev = mts->pardev;
+
+	if (pardev) {
+		parport_release(pardev);
+		parport_unregister_device(pardev);
+	}
+
+	snd_mts64_free(mts);
+}
+
+static int snd_mts64_probe(struct platform_device *pdev)
+{
+	struct pardevice *pardev;
+	struct parport *p;
+	int dev = pdev->id;
+	struct snd_card *card = NULL;
+	struct mts64 *mts = NULL;
+	int err;
+	struct pardev_cb mts64_cb = {
+		.preempt = NULL,
+		.wakeup = NULL,
+		.irq_func = snd_mts64_interrupt,	/* ISR */
+		.flags = PARPORT_DEV_EXCL,		/* flags */
+	};
+
+	p = platform_get_drvdata(pdev);
+	platform_set_drvdata(pdev, NULL);
+
+	if (dev >= SNDRV_CARDS)
+		return -ENODEV;
+	if (!enable[dev]) 
+		return -ENOENT;
+
+	err = snd_card_new(&pdev->dev, index[dev], id[dev], THIS_MODULE,
+			   0, &card);
+	if (err < 0) {
+		snd_printd("Cannot create card\n");
+		return err;
+	}
+	strcpy(card->driver, DRIVER_NAME);
+	strcpy(card->shortname, "ESI " CARD_NAME);
+	sprintf(card->longname,  "%s at 0x%lx, irq %i", 
+		card->shortname, p->base, p->irq);
+
+	mts64_cb.private = card;			 /* private */
+	pardev = parport_register_dev_model(p,		 /* port */
+					    DRIVER_NAME, /* name */
+					    &mts64_cb,	 /* callbacks */
+					    pdev->id);	 /* device number */
+	if (!pardev) {
+		snd_printd("Cannot register pardevice\n");
+		err = -EIO;
+		goto __err;
+	}
+
+	/* claim parport */
+	if (parport_claim(pardev)) {
+		snd_printd("Cannot claim parport 0x%lx\n", pardev->port->base);
+		err = -EIO;
+		goto free_pardev;
+	}
+
+	err = snd_mts64_create(card, pardev, &mts);
+	if (err < 0) {
+		snd_printd("Cannot create main component\n");
+		goto release_pardev;
+	}
+	card->private_data = mts;
+	card->private_free = snd_mts64_card_private_free;
+
+	err = mts64_probe(p);
+	if (err) {
+		err = -EIO;
+		goto __err;
+	}
+	
+	err = snd_mts64_rawmidi_create(card);
+	if (err < 0) {
+		snd_printd("Creating Rawmidi component failed\n");
+		goto __err;
+	}
+
+	/* init device */
+	err = mts64_device_init(p);
+	if (err < 0)
+		goto __err;
+
+	platform_set_drvdata(pdev, card);
+
+	/* At this point card will be usable */
+	err = snd_card_register(card);
+	if (err < 0) {
+		snd_printd("Cannot register card\n");
+		goto __err;
+	}
+
+	snd_printk(KERN_INFO "ESI Miditerminal 4140 on 0x%lx\n", p->base);
+	return 0;
+
+release_pardev:
+	parport_release(pardev);
+free_pardev:
+	parport_unregister_device(pardev);
+__err:
+	snd_card_free(card);
+	return err;
+}
+
+static int snd_mts64_remove(struct platform_device *pdev)
+{
+	struct snd_card *card = platform_get_drvdata(pdev);
+
+	if (card)
+		snd_card_free(card);
+
+	return 0;
+}
+
+static struct platform_driver snd_mts64_driver = {
+	.probe  = snd_mts64_probe,
+	.remove = snd_mts64_remove,
+	.driver = {
+		.name = PLATFORM_DRIVER,
+	}
+};
+
+/*********************************************************************
+ * module init stuff
+ *********************************************************************/
+static void snd_mts64_unregister_all(void)
+{
+	int i;
+
+	for (i = 0; i < SNDRV_CARDS; ++i) {
+		if (platform_devices[i]) {
+			platform_device_unregister(platform_devices[i]);
+			platform_devices[i] = NULL;
+		}
+	}		
+	platform_driver_unregister(&snd_mts64_driver);
+	parport_unregister_driver(&mts64_parport_driver);
+}
+
+static int __init snd_mts64_module_init(void)
+{
+	int err;
+
+	err = platform_driver_register(&snd_mts64_driver);
+	if (err < 0)
+		return err;
+
+	if (parport_register_driver(&mts64_parport_driver) != 0) {
+		platform_driver_unregister(&snd_mts64_driver);
+		return -EIO;
+	}
+
+	if (device_count == 0) {
+		snd_mts64_unregister_all();
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static void __exit snd_mts64_module_exit(void)
+{
+	snd_mts64_unregister_all();
+}
+
+module_init(snd_mts64_module_init);
+module_exit(snd_mts64_module_exit);