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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /sound/drivers/opl3/opl3_lib.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
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(). ...
Diffstat (limited to 'sound/drivers/opl3/opl3_lib.c')
-rw-r--r--sound/drivers/opl3/opl3_lib.c538
1 files changed, 538 insertions, 0 deletions
diff --git a/sound/drivers/opl3/opl3_lib.c b/sound/drivers/opl3/opl3_lib.c
new file mode 100644
index 000000000..6c1f1cc09
--- /dev/null
+++ b/sound/drivers/opl3/opl3_lib.c
@@ -0,0 +1,538 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>,
+ * Hannu Savolainen 1993-1996,
+ * Rob Hooft
+ *
+ * Routines for control of AdLib FM cards (OPL2/OPL3/OPL4 chips)
+ *
+ * Most if code is ported from OSS/Lite.
+ */
+
+#include <sound/opl3.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <sound/minors.h>
+#include "opl3_voice.h"
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, Hannu Savolainen 1993-1996, Rob Hooft");
+MODULE_DESCRIPTION("Routines for control of AdLib FM cards (OPL2/OPL3/OPL4 chips)");
+MODULE_LICENSE("GPL");
+
+static void snd_opl2_command(struct snd_opl3 * opl3, unsigned short cmd, unsigned char val)
+{
+ unsigned long flags;
+ unsigned long port;
+
+ /*
+ * The original 2-OP synth requires a quite long delay
+ * after writing to a register.
+ */
+
+ port = (cmd & OPL3_RIGHT) ? opl3->r_port : opl3->l_port;
+
+ spin_lock_irqsave(&opl3->reg_lock, flags);
+
+ outb((unsigned char) cmd, port);
+ udelay(10);
+
+ outb((unsigned char) val, port + 1);
+ udelay(30);
+
+ spin_unlock_irqrestore(&opl3->reg_lock, flags);
+}
+
+static void snd_opl3_command(struct snd_opl3 * opl3, unsigned short cmd, unsigned char val)
+{
+ unsigned long flags;
+ unsigned long port;
+
+ /*
+ * The OPL-3 survives with just two INBs
+ * after writing to a register.
+ */
+
+ port = (cmd & OPL3_RIGHT) ? opl3->r_port : opl3->l_port;
+
+ spin_lock_irqsave(&opl3->reg_lock, flags);
+
+ outb((unsigned char) cmd, port);
+ inb(opl3->l_port);
+ inb(opl3->l_port);
+
+ outb((unsigned char) val, port + 1);
+ inb(opl3->l_port);
+ inb(opl3->l_port);
+
+ spin_unlock_irqrestore(&opl3->reg_lock, flags);
+}
+
+static int snd_opl3_detect(struct snd_opl3 * opl3)
+{
+ /*
+ * This function returns 1 if the FM chip is present at the given I/O port
+ * The detection algorithm plays with the timer built in the FM chip and
+ * looks for a change in the status register.
+ *
+ * Note! The timers of the FM chip are not connected to AdLib (and compatible)
+ * boards.
+ *
+ * Note2! The chip is initialized if detected.
+ */
+
+ unsigned char stat1, stat2, signature;
+
+ /* Reset timers 1 and 2 */
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER1_MASK | OPL3_TIMER2_MASK);
+ /* Reset the IRQ of the FM chip */
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_IRQ_RESET);
+ signature = stat1 = inb(opl3->l_port); /* Status register */
+ if ((stat1 & 0xe0) != 0x00) { /* Should be 0x00 */
+ snd_printd("OPL3: stat1 = 0x%x\n", stat1);
+ return -ENODEV;
+ }
+ /* Set timer1 to 0xff */
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER1, 0xff);
+ /* Unmask and start timer 1 */
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER2_MASK | OPL3_TIMER1_START);
+ /* Now we have to delay at least 80us */
+ udelay(200);
+ /* Read status after timers have expired */
+ stat2 = inb(opl3->l_port);
+ /* Stop the timers */
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER1_MASK | OPL3_TIMER2_MASK);
+ /* Reset the IRQ of the FM chip */
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_IRQ_RESET);
+ if ((stat2 & 0xe0) != 0xc0) { /* There is no YM3812 */
+ snd_printd("OPL3: stat2 = 0x%x\n", stat2);
+ return -ENODEV;
+ }
+
+ /* If the toplevel code knows exactly the type of chip, don't try
+ to detect it. */
+ if (opl3->hardware != OPL3_HW_AUTO)
+ return 0;
+
+ /* There is a FM chip on this address. Detect the type (OPL2 to OPL4) */
+ if (signature == 0x06) { /* OPL2 */
+ opl3->hardware = OPL3_HW_OPL2;
+ } else {
+ /*
+ * If we had an OPL4 chip, opl3->hardware would have been set
+ * by the OPL4 driver; so we can assume OPL3 here.
+ */
+ if (snd_BUG_ON(!opl3->r_port))
+ return -ENODEV;
+ opl3->hardware = OPL3_HW_OPL3;
+ }
+ return 0;
+}
+
+/*
+ * AdLib timers
+ */
+
+/*
+ * Timer 1 - 80us
+ */
+
+static int snd_opl3_timer1_start(struct snd_timer * timer)
+{
+ unsigned long flags;
+ unsigned char tmp;
+ unsigned int ticks;
+ struct snd_opl3 *opl3;
+
+ opl3 = snd_timer_chip(timer);
+ spin_lock_irqsave(&opl3->timer_lock, flags);
+ ticks = timer->sticks;
+ tmp = (opl3->timer_enable | OPL3_TIMER1_START) & ~OPL3_TIMER1_MASK;
+ opl3->timer_enable = tmp;
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER1, 256 - ticks); /* timer 1 count */
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* enable timer 1 IRQ */
+ spin_unlock_irqrestore(&opl3->timer_lock, flags);
+ return 0;
+}
+
+static int snd_opl3_timer1_stop(struct snd_timer * timer)
+{
+ unsigned long flags;
+ unsigned char tmp;
+ struct snd_opl3 *opl3;
+
+ opl3 = snd_timer_chip(timer);
+ spin_lock_irqsave(&opl3->timer_lock, flags);
+ tmp = (opl3->timer_enable | OPL3_TIMER1_MASK) & ~OPL3_TIMER1_START;
+ opl3->timer_enable = tmp;
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* disable timer #1 */
+ spin_unlock_irqrestore(&opl3->timer_lock, flags);
+ return 0;
+}
+
+/*
+ * Timer 2 - 320us
+ */
+
+static int snd_opl3_timer2_start(struct snd_timer * timer)
+{
+ unsigned long flags;
+ unsigned char tmp;
+ unsigned int ticks;
+ struct snd_opl3 *opl3;
+
+ opl3 = snd_timer_chip(timer);
+ spin_lock_irqsave(&opl3->timer_lock, flags);
+ ticks = timer->sticks;
+ tmp = (opl3->timer_enable | OPL3_TIMER2_START) & ~OPL3_TIMER2_MASK;
+ opl3->timer_enable = tmp;
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER2, 256 - ticks); /* timer 1 count */
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* enable timer 1 IRQ */
+ spin_unlock_irqrestore(&opl3->timer_lock, flags);
+ return 0;
+}
+
+static int snd_opl3_timer2_stop(struct snd_timer * timer)
+{
+ unsigned long flags;
+ unsigned char tmp;
+ struct snd_opl3 *opl3;
+
+ opl3 = snd_timer_chip(timer);
+ spin_lock_irqsave(&opl3->timer_lock, flags);
+ tmp = (opl3->timer_enable | OPL3_TIMER2_MASK) & ~OPL3_TIMER2_START;
+ opl3->timer_enable = tmp;
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* disable timer #1 */
+ spin_unlock_irqrestore(&opl3->timer_lock, flags);
+ return 0;
+}
+
+/*
+
+ */
+
+static const struct snd_timer_hardware snd_opl3_timer1 =
+{
+ .flags = SNDRV_TIMER_HW_STOP,
+ .resolution = 80000,
+ .ticks = 256,
+ .start = snd_opl3_timer1_start,
+ .stop = snd_opl3_timer1_stop,
+};
+
+static const struct snd_timer_hardware snd_opl3_timer2 =
+{
+ .flags = SNDRV_TIMER_HW_STOP,
+ .resolution = 320000,
+ .ticks = 256,
+ .start = snd_opl3_timer2_start,
+ .stop = snd_opl3_timer2_stop,
+};
+
+static int snd_opl3_timer1_init(struct snd_opl3 * opl3, int timer_no)
+{
+ struct snd_timer *timer = NULL;
+ struct snd_timer_id tid;
+ int err;
+
+ tid.dev_class = SNDRV_TIMER_CLASS_CARD;
+ tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
+ tid.card = opl3->card->number;
+ tid.device = timer_no;
+ tid.subdevice = 0;
+ err = snd_timer_new(opl3->card, "AdLib timer #1", &tid, &timer);
+ if (err >= 0) {
+ strcpy(timer->name, "AdLib timer #1");
+ timer->private_data = opl3;
+ timer->hw = snd_opl3_timer1;
+ }
+ opl3->timer1 = timer;
+ return err;
+}
+
+static int snd_opl3_timer2_init(struct snd_opl3 * opl3, int timer_no)
+{
+ struct snd_timer *timer = NULL;
+ struct snd_timer_id tid;
+ int err;
+
+ tid.dev_class = SNDRV_TIMER_CLASS_CARD;
+ tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
+ tid.card = opl3->card->number;
+ tid.device = timer_no;
+ tid.subdevice = 0;
+ err = snd_timer_new(opl3->card, "AdLib timer #2", &tid, &timer);
+ if (err >= 0) {
+ strcpy(timer->name, "AdLib timer #2");
+ timer->private_data = opl3;
+ timer->hw = snd_opl3_timer2;
+ }
+ opl3->timer2 = timer;
+ return err;
+}
+
+/*
+
+ */
+
+void snd_opl3_interrupt(struct snd_hwdep * hw)
+{
+ unsigned char status;
+ struct snd_opl3 *opl3;
+ struct snd_timer *timer;
+
+ if (hw == NULL)
+ return;
+
+ opl3 = hw->private_data;
+ status = inb(opl3->l_port);
+#if 0
+ snd_printk(KERN_DEBUG "AdLib IRQ status = 0x%x\n", status);
+#endif
+ if (!(status & 0x80))
+ return;
+
+ if (status & 0x40) {
+ timer = opl3->timer1;
+ snd_timer_interrupt(timer, timer->sticks);
+ }
+ if (status & 0x20) {
+ timer = opl3->timer2;
+ snd_timer_interrupt(timer, timer->sticks);
+ }
+}
+
+EXPORT_SYMBOL(snd_opl3_interrupt);
+
+/*
+
+ */
+
+static int snd_opl3_free(struct snd_opl3 *opl3)
+{
+ if (snd_BUG_ON(!opl3))
+ return -ENXIO;
+ if (opl3->private_free)
+ opl3->private_free(opl3);
+ snd_opl3_clear_patches(opl3);
+ release_and_free_resource(opl3->res_l_port);
+ release_and_free_resource(opl3->res_r_port);
+ kfree(opl3);
+ return 0;
+}
+
+static int snd_opl3_dev_free(struct snd_device *device)
+{
+ struct snd_opl3 *opl3 = device->device_data;
+ return snd_opl3_free(opl3);
+}
+
+int snd_opl3_new(struct snd_card *card,
+ unsigned short hardware,
+ struct snd_opl3 **ropl3)
+{
+ static const struct snd_device_ops ops = {
+ .dev_free = snd_opl3_dev_free,
+ };
+ struct snd_opl3 *opl3;
+ int err;
+
+ *ropl3 = NULL;
+ opl3 = kzalloc(sizeof(*opl3), GFP_KERNEL);
+ if (!opl3)
+ return -ENOMEM;
+
+ opl3->card = card;
+ opl3->hardware = hardware;
+ spin_lock_init(&opl3->reg_lock);
+ spin_lock_init(&opl3->timer_lock);
+
+ err = snd_device_new(card, SNDRV_DEV_CODEC, opl3, &ops);
+ if (err < 0) {
+ snd_opl3_free(opl3);
+ return err;
+ }
+
+ *ropl3 = opl3;
+ return 0;
+}
+
+EXPORT_SYMBOL(snd_opl3_new);
+
+int snd_opl3_init(struct snd_opl3 *opl3)
+{
+ if (! opl3->command) {
+ printk(KERN_ERR "snd_opl3_init: command not defined!\n");
+ return -EINVAL;
+ }
+
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_TEST, OPL3_ENABLE_WAVE_SELECT);
+ /* Melodic mode */
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, 0x00);
+
+ switch (opl3->hardware & OPL3_HW_MASK) {
+ case OPL3_HW_OPL2:
+ opl3->max_voices = MAX_OPL2_VOICES;
+ break;
+ case OPL3_HW_OPL3:
+ case OPL3_HW_OPL4:
+ opl3->max_voices = MAX_OPL3_VOICES;
+ /* Enter OPL3 mode */
+ opl3->command(opl3, OPL3_RIGHT | OPL3_REG_MODE, OPL3_OPL3_ENABLE);
+ }
+ return 0;
+}
+
+EXPORT_SYMBOL(snd_opl3_init);
+
+int snd_opl3_create(struct snd_card *card,
+ unsigned long l_port,
+ unsigned long r_port,
+ unsigned short hardware,
+ int integrated,
+ struct snd_opl3 ** ropl3)
+{
+ struct snd_opl3 *opl3;
+ int err;
+
+ *ropl3 = NULL;
+ err = snd_opl3_new(card, hardware, &opl3);
+ if (err < 0)
+ return err;
+ if (! integrated) {
+ opl3->res_l_port = request_region(l_port, 2, "OPL2/3 (left)");
+ if (!opl3->res_l_port) {
+ snd_printk(KERN_ERR "opl3: can't grab left port 0x%lx\n", l_port);
+ snd_device_free(card, opl3);
+ return -EBUSY;
+ }
+ if (r_port != 0) {
+ opl3->res_r_port = request_region(r_port, 2, "OPL2/3 (right)");
+ if (!opl3->res_r_port) {
+ snd_printk(KERN_ERR "opl3: can't grab right port 0x%lx\n", r_port);
+ snd_device_free(card, opl3);
+ return -EBUSY;
+ }
+ }
+ }
+ opl3->l_port = l_port;
+ opl3->r_port = r_port;
+
+ switch (opl3->hardware) {
+ /* some hardware doesn't support timers */
+ case OPL3_HW_OPL3_SV:
+ case OPL3_HW_OPL3_CS:
+ case OPL3_HW_OPL3_FM801:
+ opl3->command = &snd_opl3_command;
+ break;
+ default:
+ opl3->command = &snd_opl2_command;
+ err = snd_opl3_detect(opl3);
+ if (err < 0) {
+ snd_printd("OPL2/3 chip not detected at 0x%lx/0x%lx\n",
+ opl3->l_port, opl3->r_port);
+ snd_device_free(card, opl3);
+ return err;
+ }
+ /* detect routine returns correct hardware type */
+ switch (opl3->hardware & OPL3_HW_MASK) {
+ case OPL3_HW_OPL3:
+ case OPL3_HW_OPL4:
+ opl3->command = &snd_opl3_command;
+ }
+ }
+
+ snd_opl3_init(opl3);
+
+ *ropl3 = opl3;
+ return 0;
+}
+
+EXPORT_SYMBOL(snd_opl3_create);
+
+int snd_opl3_timer_new(struct snd_opl3 * opl3, int timer1_dev, int timer2_dev)
+{
+ int err;
+
+ if (timer1_dev >= 0) {
+ err = snd_opl3_timer1_init(opl3, timer1_dev);
+ if (err < 0)
+ return err;
+ }
+ if (timer2_dev >= 0) {
+ err = snd_opl3_timer2_init(opl3, timer2_dev);
+ if (err < 0) {
+ snd_device_free(opl3->card, opl3->timer1);
+ opl3->timer1 = NULL;
+ return err;
+ }
+ }
+ return 0;
+}
+
+EXPORT_SYMBOL(snd_opl3_timer_new);
+
+int snd_opl3_hwdep_new(struct snd_opl3 * opl3,
+ int device, int seq_device,
+ struct snd_hwdep ** rhwdep)
+{
+ struct snd_hwdep *hw;
+ struct snd_card *card = opl3->card;
+ int err;
+
+ if (rhwdep)
+ *rhwdep = NULL;
+
+ /* create hardware dependent device (direct FM) */
+
+ err = snd_hwdep_new(card, "OPL2/OPL3", device, &hw);
+ if (err < 0) {
+ snd_device_free(card, opl3);
+ return err;
+ }
+ hw->private_data = opl3;
+ hw->exclusive = 1;
+#ifdef CONFIG_SND_OSSEMUL
+ if (device == 0)
+ hw->oss_type = SNDRV_OSS_DEVICE_TYPE_DMFM;
+#endif
+ strcpy(hw->name, hw->id);
+ switch (opl3->hardware & OPL3_HW_MASK) {
+ case OPL3_HW_OPL2:
+ strcpy(hw->name, "OPL2 FM");
+ hw->iface = SNDRV_HWDEP_IFACE_OPL2;
+ break;
+ case OPL3_HW_OPL3:
+ strcpy(hw->name, "OPL3 FM");
+ hw->iface = SNDRV_HWDEP_IFACE_OPL3;
+ break;
+ case OPL3_HW_OPL4:
+ strcpy(hw->name, "OPL4 FM");
+ hw->iface = SNDRV_HWDEP_IFACE_OPL4;
+ break;
+ }
+
+ /* operators - only ioctl */
+ hw->ops.open = snd_opl3_open;
+ hw->ops.ioctl = snd_opl3_ioctl;
+ hw->ops.write = snd_opl3_write;
+ hw->ops.release = snd_opl3_release;
+
+ opl3->hwdep = hw;
+ opl3->seq_dev_num = seq_device;
+#if IS_ENABLED(CONFIG_SND_SEQUENCER)
+ if (snd_seq_device_new(card, seq_device, SNDRV_SEQ_DEV_ID_OPL3,
+ sizeof(struct snd_opl3 *), &opl3->seq_dev) >= 0) {
+ strcpy(opl3->seq_dev->name, hw->name);
+ *(struct snd_opl3 **)SNDRV_SEQ_DEVICE_ARGPTR(opl3->seq_dev) = opl3;
+ }
+#endif
+ if (rhwdep)
+ *rhwdep = hw;
+ return 0;
+}
+
+EXPORT_SYMBOL(snd_opl3_hwdep_new);