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/soc/sh/rcar/src.c | 735 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 735 insertions(+) create mode 100644 sound/soc/sh/rcar/src.c (limited to 'sound/soc/sh/rcar/src.c') diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c new file mode 100644 index 000000000..f832165e4 --- /dev/null +++ b/sound/soc/sh/rcar/src.c @@ -0,0 +1,735 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Renesas R-Car SRC support +// +// Copyright (C) 2013 Renesas Solutions Corp. +// Kuninori Morimoto + +/* + * You can use Synchronous Sampling Rate Convert (if no DVC) + * + * amixer set "SRC Out Rate" on + * aplay xxx.wav & + * amixer set "SRC Out Rate" 96000 // convert rate to 96000Hz + * amixer set "SRC Out Rate" 22050 // convert rate to 22050Hz + */ + +/* + * you can enable below define if you don't need + * SSI interrupt status debug message when debugging + * see rsnd_print_irq_status() + * + * #define RSND_DEBUG_NO_IRQ_STATUS 1 + */ + +#include "rsnd.h" + +#define SRC_NAME "src" + +/* SCU_SYSTEM_STATUS0/1 */ +#define OUF_SRC(id) ((1 << (id + 16)) | (1 << id)) + +struct rsnd_src { + struct rsnd_mod mod; + struct rsnd_mod *dma; + struct rsnd_kctrl_cfg_s sen; /* sync convert enable */ + struct rsnd_kctrl_cfg_s sync; /* sync convert */ + int irq; +}; + +#define RSND_SRC_NAME_SIZE 16 + +#define rsnd_src_get(priv, id) ((struct rsnd_src *)(priv->src) + id) +#define rsnd_src_nr(priv) ((priv)->src_nr) +#define rsnd_src_sync_is_enabled(mod) (rsnd_mod_to_src(mod)->sen.val) + +#define rsnd_mod_to_src(_mod) \ + container_of((_mod), struct rsnd_src, mod) + +#define for_each_rsnd_src(pos, priv, i) \ + for ((i) = 0; \ + ((i) < rsnd_src_nr(priv)) && \ + ((pos) = (struct rsnd_src *)(priv)->src + i); \ + i++) + + +/* + * image of SRC (Sampling Rate Converter) + * + * 96kHz <-> +-----+ 48kHz +-----+ 48kHz +-------+ + * 48kHz <-> | SRC | <------> | SSI | <-----> | codec | + * 44.1kHz <-> +-----+ +-----+ +-------+ + * ... + * + */ + +static void rsnd_src_activation(struct rsnd_mod *mod) +{ + rsnd_mod_write(mod, SRC_SWRSR, 0); + rsnd_mod_write(mod, SRC_SWRSR, 1); +} + +static void rsnd_src_halt(struct rsnd_mod *mod) +{ + rsnd_mod_write(mod, SRC_SRCIR, 1); + rsnd_mod_write(mod, SRC_SWRSR, 0); +} + +static struct dma_chan *rsnd_src_dma_req(struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + int is_play = rsnd_io_is_play(io); + + return rsnd_dma_request_channel(rsnd_src_of_node(priv), + SRC_NAME, mod, + is_play ? "rx" : "tx"); +} + +static u32 rsnd_src_convert_rate(struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); + struct rsnd_src *src = rsnd_mod_to_src(mod); + u32 convert_rate; + + if (!runtime) + return 0; + + if (!rsnd_src_sync_is_enabled(mod)) + return rsnd_io_converted_rate(io); + + convert_rate = src->sync.val; + + if (!convert_rate) + convert_rate = rsnd_io_converted_rate(io); + + if (!convert_rate) + convert_rate = runtime->rate; + + return convert_rate; +} + +unsigned int rsnd_src_get_rate(struct rsnd_priv *priv, + struct rsnd_dai_stream *io, + int is_in) +{ + struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io); + struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); + unsigned int rate = 0; + int is_play = rsnd_io_is_play(io); + + /* + * Playback + * runtime_rate -> [SRC] -> convert_rate + * + * Capture + * convert_rate -> [SRC] -> runtime_rate + */ + + if (is_play == is_in) + return runtime->rate; + + /* + * return convert rate if SRC is used, + * otherwise, return runtime->rate as usual + */ + if (src_mod) + rate = rsnd_src_convert_rate(io, src_mod); + + if (!rate) + rate = runtime->rate; + + return rate; +} + +static const u32 bsdsr_table_pattern1[] = { + 0x01800000, /* 6 - 1/6 */ + 0x01000000, /* 6 - 1/4 */ + 0x00c00000, /* 6 - 1/3 */ + 0x00800000, /* 6 - 1/2 */ + 0x00600000, /* 6 - 2/3 */ + 0x00400000, /* 6 - 1 */ +}; + +static const u32 bsdsr_table_pattern2[] = { + 0x02400000, /* 6 - 1/6 */ + 0x01800000, /* 6 - 1/4 */ + 0x01200000, /* 6 - 1/3 */ + 0x00c00000, /* 6 - 1/2 */ + 0x00900000, /* 6 - 2/3 */ + 0x00600000, /* 6 - 1 */ +}; + +static const u32 bsisr_table[] = { + 0x00100060, /* 6 - 1/6 */ + 0x00100040, /* 6 - 1/4 */ + 0x00100030, /* 6 - 1/3 */ + 0x00100020, /* 6 - 1/2 */ + 0x00100020, /* 6 - 2/3 */ + 0x00100020, /* 6 - 1 */ +}; + +static const u32 chan288888[] = { + 0x00000006, /* 1 to 2 */ + 0x000001fe, /* 1 to 8 */ + 0x000001fe, /* 1 to 8 */ + 0x000001fe, /* 1 to 8 */ + 0x000001fe, /* 1 to 8 */ + 0x000001fe, /* 1 to 8 */ +}; + +static const u32 chan244888[] = { + 0x00000006, /* 1 to 2 */ + 0x0000001e, /* 1 to 4 */ + 0x0000001e, /* 1 to 4 */ + 0x000001fe, /* 1 to 8 */ + 0x000001fe, /* 1 to 8 */ + 0x000001fe, /* 1 to 8 */ +}; + +static const u32 chan222222[] = { + 0x00000006, /* 1 to 2 */ + 0x00000006, /* 1 to 2 */ + 0x00000006, /* 1 to 2 */ + 0x00000006, /* 1 to 2 */ + 0x00000006, /* 1 to 2 */ + 0x00000006, /* 1 to 2 */ +}; + +static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + struct device *dev = rsnd_priv_to_dev(priv); + struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); + int is_play = rsnd_io_is_play(io); + int use_src = 0; + u32 fin, fout; + u32 ifscr, fsrate, adinr; + u32 cr, route; + u32 i_busif, o_busif, tmp; + const u32 *bsdsr_table; + const u32 *chptn; + uint ratio; + int chan; + int idx; + + if (!runtime) + return; + + fin = rsnd_src_get_in_rate(priv, io); + fout = rsnd_src_get_out_rate(priv, io); + + chan = rsnd_runtime_channel_original(io); + + /* 6 - 1/6 are very enough ratio for SRC_BSDSR */ + if (fin == fout) + ratio = 0; + else if (fin > fout) + ratio = 100 * fin / fout; + else + ratio = 100 * fout / fin; + + if (ratio > 600) { + dev_err(dev, "FSO/FSI ratio error\n"); + return; + } + + use_src = (fin != fout) | rsnd_src_sync_is_enabled(mod); + + /* + * SRC_ADINR + */ + adinr = rsnd_get_adinr_bit(mod, io) | chan; + + /* + * SRC_IFSCR / SRC_IFSVR + */ + ifscr = 0; + fsrate = 0; + if (use_src) { + u64 n; + + ifscr = 1; + n = (u64)0x0400000 * fin; + do_div(n, fout); + fsrate = n; + } + + /* + * SRC_SRCCR / SRC_ROUTE_MODE0 + */ + cr = 0x00011110; + route = 0x0; + if (use_src) { + route = 0x1; + + if (rsnd_src_sync_is_enabled(mod)) { + cr |= 0x1; + route |= rsnd_io_is_play(io) ? + (0x1 << 24) : (0x1 << 25); + } + } + + /* + * SRC_BSDSR / SRC_BSISR + * + * see + * Combination of Register Setting Related to + * FSO/FSI Ratio and Channel, Latency + */ + switch (rsnd_mod_id(mod)) { + case 0: + chptn = chan288888; + bsdsr_table = bsdsr_table_pattern1; + break; + case 1: + case 3: + case 4: + chptn = chan244888; + bsdsr_table = bsdsr_table_pattern1; + break; + case 2: + case 9: + chptn = chan222222; + bsdsr_table = bsdsr_table_pattern1; + break; + case 5: + case 6: + case 7: + case 8: + chptn = chan222222; + bsdsr_table = bsdsr_table_pattern2; + break; + default: + goto convert_rate_err; + } + + /* + * E3 need to overwrite + */ + if (rsnd_is_e3(priv)) + switch (rsnd_mod_id(mod)) { + case 0: + case 4: + chptn = chan222222; + } + + for (idx = 0; idx < ARRAY_SIZE(chan222222); idx++) + if (chptn[idx] & (1 << chan)) + break; + + if (chan > 8 || + idx >= ARRAY_SIZE(chan222222)) + goto convert_rate_err; + + /* BUSIF_MODE */ + tmp = rsnd_get_busif_shift(io, mod); + i_busif = ( is_play ? tmp : 0) | 1; + o_busif = (!is_play ? tmp : 0) | 1; + + rsnd_mod_write(mod, SRC_ROUTE_MODE0, route); + + rsnd_mod_write(mod, SRC_SRCIR, 1); /* initialize */ + rsnd_mod_write(mod, SRC_ADINR, adinr); + rsnd_mod_write(mod, SRC_IFSCR, ifscr); + rsnd_mod_write(mod, SRC_IFSVR, fsrate); + rsnd_mod_write(mod, SRC_SRCCR, cr); + rsnd_mod_write(mod, SRC_BSDSR, bsdsr_table[idx]); + rsnd_mod_write(mod, SRC_BSISR, bsisr_table[idx]); + rsnd_mod_write(mod, SRC_SRCIR, 0); /* cancel initialize */ + + rsnd_mod_write(mod, SRC_I_BUSIF_MODE, i_busif); + rsnd_mod_write(mod, SRC_O_BUSIF_MODE, o_busif); + + rsnd_mod_write(mod, SRC_BUSIF_DALIGN, rsnd_get_dalign(mod, io)); + + rsnd_adg_set_src_timesel_gen2(mod, io, fin, fout); + + return; + +convert_rate_err: + dev_err(dev, "unknown BSDSR/BSDIR settings\n"); +} + +static int rsnd_src_irq(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv, + int enable) +{ + struct rsnd_src *src = rsnd_mod_to_src(mod); + u32 sys_int_val, int_val, sys_int_mask; + int irq = src->irq; + int id = rsnd_mod_id(mod); + + sys_int_val = + sys_int_mask = OUF_SRC(id); + int_val = 0x3300; + + /* + * IRQ is not supported on non-DT + * see + * rsnd_src_probe_() + */ + if ((irq <= 0) || !enable) { + sys_int_val = 0; + int_val = 0; + } + + /* + * WORKAROUND + * + * ignore over flow error when rsnd_src_sync_is_enabled() + */ + if (rsnd_src_sync_is_enabled(mod)) + sys_int_val = sys_int_val & 0xffff; + + rsnd_mod_write(mod, SRC_INT_ENABLE0, int_val); + rsnd_mod_bset(mod, SCU_SYS_INT_EN0, sys_int_mask, sys_int_val); + rsnd_mod_bset(mod, SCU_SYS_INT_EN1, sys_int_mask, sys_int_val); + + return 0; +} + +static void rsnd_src_status_clear(struct rsnd_mod *mod) +{ + u32 val = OUF_SRC(rsnd_mod_id(mod)); + + rsnd_mod_write(mod, SCU_SYS_STATUS0, val); + rsnd_mod_write(mod, SCU_SYS_STATUS1, val); +} + +static bool rsnd_src_error_occurred(struct rsnd_mod *mod) +{ + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + struct device *dev = rsnd_priv_to_dev(priv); + u32 val0, val1; + u32 status0, status1; + bool ret = false; + + val0 = val1 = OUF_SRC(rsnd_mod_id(mod)); + + /* + * WORKAROUND + * + * ignore over flow error when rsnd_src_sync_is_enabled() + */ + if (rsnd_src_sync_is_enabled(mod)) + val0 = val0 & 0xffff; + + status0 = rsnd_mod_read(mod, SCU_SYS_STATUS0); + status1 = rsnd_mod_read(mod, SCU_SYS_STATUS1); + if ((status0 & val0) || (status1 & val1)) { + rsnd_print_irq_status(dev, "%s err status : 0x%08x, 0x%08x\n", + rsnd_mod_name(mod), status0, status1); + + ret = true; + } + + return ret; +} + +static int rsnd_src_start(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv) +{ + u32 val; + + /* + * WORKAROUND + * + * Enable SRC output if you want to use sync convert together with DVC + */ + val = (rsnd_io_to_mod_dvc(io) && !rsnd_src_sync_is_enabled(mod)) ? + 0x01 : 0x11; + + rsnd_mod_write(mod, SRC_CTRL, val); + + return 0; +} + +static int rsnd_src_stop(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv) +{ + rsnd_mod_write(mod, SRC_CTRL, 0); + + return 0; +} + +static int rsnd_src_init(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv) +{ + struct rsnd_src *src = rsnd_mod_to_src(mod); + int ret; + + /* reset sync convert_rate */ + src->sync.val = 0; + + ret = rsnd_mod_power_on(mod); + if (ret < 0) + return ret; + + rsnd_src_activation(mod); + + rsnd_src_set_convert_rate(io, mod); + + rsnd_src_status_clear(mod); + + return 0; +} + +static int rsnd_src_quit(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv) +{ + struct rsnd_src *src = rsnd_mod_to_src(mod); + + rsnd_src_halt(mod); + + rsnd_mod_power_off(mod); + + /* reset sync convert_rate */ + src->sync.val = 0; + + return 0; +} + +static void __rsnd_src_interrupt(struct rsnd_mod *mod, + struct rsnd_dai_stream *io) +{ + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + bool stop = false; + + spin_lock(&priv->lock); + + /* ignore all cases if not working */ + if (!rsnd_io_is_working(io)) + goto rsnd_src_interrupt_out; + + if (rsnd_src_error_occurred(mod)) + stop = true; + + rsnd_src_status_clear(mod); +rsnd_src_interrupt_out: + + spin_unlock(&priv->lock); + + if (stop) + snd_pcm_stop_xrun(io->substream); +} + +static irqreturn_t rsnd_src_interrupt(int irq, void *data) +{ + struct rsnd_mod *mod = data; + + rsnd_mod_interrupt(mod, __rsnd_src_interrupt); + + return IRQ_HANDLED; +} + +static int rsnd_src_probe_(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv) +{ + struct rsnd_src *src = rsnd_mod_to_src(mod); + struct device *dev = rsnd_priv_to_dev(priv); + int irq = src->irq; + int ret; + + if (irq > 0) { + /* + * IRQ is not supported on non-DT + * see + * rsnd_src_irq() + */ + ret = devm_request_irq(dev, irq, + rsnd_src_interrupt, + IRQF_SHARED, + dev_name(dev), mod); + if (ret) + return ret; + } + + ret = rsnd_dma_attach(io, mod, &src->dma); + + return ret; +} + +static int rsnd_src_pcm_new(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct snd_soc_pcm_runtime *rtd) +{ + struct rsnd_src *src = rsnd_mod_to_src(mod); + int ret; + + /* + * enable SRC sync convert if possible + */ + + /* + * It can't use SRC Synchronous convert + * when Capture if it uses CMD + */ + if (rsnd_io_to_mod_cmd(io) && !rsnd_io_is_play(io)) + return 0; + + /* + * enable sync convert + */ + ret = rsnd_kctrl_new_s(mod, io, rtd, + rsnd_io_is_play(io) ? + "SRC Out Rate Switch" : + "SRC In Rate Switch", + rsnd_kctrl_accept_anytime, + rsnd_src_set_convert_rate, + &src->sen, 1); + if (ret < 0) + return ret; + + ret = rsnd_kctrl_new_s(mod, io, rtd, + rsnd_io_is_play(io) ? + "SRC Out Rate" : + "SRC In Rate", + rsnd_kctrl_accept_runtime, + rsnd_src_set_convert_rate, + &src->sync, 192000); + + return ret; +} + +#ifdef CONFIG_DEBUG_FS +static void rsnd_src_debug_info(struct seq_file *m, + struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU, + rsnd_mod_id(mod) * 0x20, 0x20); + seq_puts(m, "\n"); + rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU, + 0x1c0, 0x20); + seq_puts(m, "\n"); + rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU, + 0x200 + rsnd_mod_id(mod) * 0x40, 0x40); +} +#define DEBUG_INFO .debug_info = rsnd_src_debug_info +#else +#define DEBUG_INFO +#endif + +static struct rsnd_mod_ops rsnd_src_ops = { + .name = SRC_NAME, + .dma_req = rsnd_src_dma_req, + .probe = rsnd_src_probe_, + .init = rsnd_src_init, + .quit = rsnd_src_quit, + .start = rsnd_src_start, + .stop = rsnd_src_stop, + .irq = rsnd_src_irq, + .pcm_new = rsnd_src_pcm_new, + .get_status = rsnd_mod_get_status, + DEBUG_INFO +}; + +struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id) +{ + if (WARN_ON(id < 0 || id >= rsnd_src_nr(priv))) + id = 0; + + return rsnd_mod_get(rsnd_src_get(priv, id)); +} + +int rsnd_src_probe(struct rsnd_priv *priv) +{ + struct device_node *node; + struct device_node *np; + struct device *dev = rsnd_priv_to_dev(priv); + struct rsnd_src *src; + struct clk *clk; + char name[RSND_SRC_NAME_SIZE]; + int i, nr, ret; + + /* This driver doesn't support Gen1 at this point */ + if (rsnd_is_gen1(priv)) + return 0; + + node = rsnd_src_of_node(priv); + if (!node) + return 0; /* not used is not error */ + + nr = rsnd_node_count(priv, node, SRC_NAME); + if (!nr) { + ret = -EINVAL; + goto rsnd_src_probe_done; + } + + src = devm_kcalloc(dev, nr, sizeof(*src), GFP_KERNEL); + if (!src) { + ret = -ENOMEM; + goto rsnd_src_probe_done; + } + + priv->src_nr = nr; + priv->src = src; + + i = 0; + for_each_child_of_node(node, np) { + if (!of_device_is_available(np)) + goto skip; + + i = rsnd_node_fixed_index(dev, np, SRC_NAME, i); + if (i < 0) { + ret = -EINVAL; + of_node_put(np); + goto rsnd_src_probe_done; + } + + src = rsnd_src_get(priv, i); + + snprintf(name, RSND_SRC_NAME_SIZE, "%s.%d", + SRC_NAME, i); + + src->irq = irq_of_parse_and_map(np, 0); + if (!src->irq) { + ret = -EINVAL; + of_node_put(np); + goto rsnd_src_probe_done; + } + + clk = devm_clk_get(dev, name); + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); + of_node_put(np); + goto rsnd_src_probe_done; + } + + ret = rsnd_mod_init(priv, rsnd_mod_get(src), + &rsnd_src_ops, clk, RSND_MOD_SRC, i); + if (ret) { + of_node_put(np); + goto rsnd_src_probe_done; + } + +skip: + i++; + } + + ret = 0; + +rsnd_src_probe_done: + of_node_put(node); + + return ret; +} + +void rsnd_src_remove(struct rsnd_priv *priv) +{ + struct rsnd_src *src; + int i; + + for_each_rsnd_src(src, priv, i) { + rsnd_mod_quit(rsnd_mod_get(src)); + } +} -- cgit v1.2.3