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/pci/ad1889.c | 925 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 925 insertions(+) create mode 100644 sound/pci/ad1889.c (limited to 'sound/pci/ad1889.c') diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c new file mode 100644 index 000000000..50e30704b --- /dev/null +++ b/sound/pci/ad1889.c @@ -0,0 +1,925 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Analog Devices 1889 audio driver + * + * This is a driver for the AD1889 PCI audio chipset found + * on the HP PA-RISC [BCJ]-xxx0 workstations. + * + * Copyright (C) 2004-2005, Kyle McMartin + * Copyright (C) 2005, Thibaut Varene + * Based on the OSS AD1889 driver by Randolph Chung + * + * TODO: + * Do we need to take care of CCS register? + * Maybe we could use finer grained locking (separate locks for pb/cap)? + * Wishlist: + * Control Interface (mixer) support + * Better AC97 support (VSR...)? + * PM support + * MIDI support + * Game Port support + * SG DMA support (this will need *a lot* of work) + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "ad1889.h" +#include "ac97/ac97_id.h" + +#define AD1889_DRVVER "Version: 1.7" + +MODULE_AUTHOR("Kyle McMartin , Thibaut Varene "); +MODULE_DESCRIPTION("Analog Devices AD1889 ALSA sound driver"); +MODULE_LICENSE("GPL"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for the AD1889 soundcard."); + +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for the AD1889 soundcard."); + +static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable AD1889 soundcard."); + +static char *ac97_quirk[SNDRV_CARDS]; +module_param_array(ac97_quirk, charp, NULL, 0444); +MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware."); + +#define DEVNAME "ad1889" +#define PFX DEVNAME ": " + +/* keep track of some hw registers */ +struct ad1889_register_state { + u16 reg; /* reg setup */ + u32 addr; /* dma base address */ + unsigned long size; /* DMA buffer size */ +}; + +struct snd_ad1889 { + struct snd_card *card; + struct pci_dev *pci; + + int irq; + unsigned long bar; + void __iomem *iobase; + + struct snd_ac97 *ac97; + struct snd_ac97_bus *ac97_bus; + struct snd_pcm *pcm; + struct snd_info_entry *proc; + + struct snd_pcm_substream *psubs; + struct snd_pcm_substream *csubs; + + /* playback register state */ + struct ad1889_register_state wave; + struct ad1889_register_state ramc; + + spinlock_t lock; +}; + +static inline u16 +ad1889_readw(struct snd_ad1889 *chip, unsigned reg) +{ + return readw(chip->iobase + reg); +} + +static inline void +ad1889_writew(struct snd_ad1889 *chip, unsigned reg, u16 val) +{ + writew(val, chip->iobase + reg); +} + +static inline u32 +ad1889_readl(struct snd_ad1889 *chip, unsigned reg) +{ + return readl(chip->iobase + reg); +} + +static inline void +ad1889_writel(struct snd_ad1889 *chip, unsigned reg, u32 val) +{ + writel(val, chip->iobase + reg); +} + +static inline void +ad1889_unmute(struct snd_ad1889 *chip) +{ + u16 st; + st = ad1889_readw(chip, AD_DS_WADA) & + ~(AD_DS_WADA_RWAM | AD_DS_WADA_LWAM); + ad1889_writew(chip, AD_DS_WADA, st); + ad1889_readw(chip, AD_DS_WADA); +} + +static inline void +ad1889_mute(struct snd_ad1889 *chip) +{ + u16 st; + st = ad1889_readw(chip, AD_DS_WADA) | AD_DS_WADA_RWAM | AD_DS_WADA_LWAM; + ad1889_writew(chip, AD_DS_WADA, st); + ad1889_readw(chip, AD_DS_WADA); +} + +static inline void +ad1889_load_adc_buffer_address(struct snd_ad1889 *chip, u32 address) +{ + ad1889_writel(chip, AD_DMA_ADCBA, address); + ad1889_writel(chip, AD_DMA_ADCCA, address); +} + +static inline void +ad1889_load_adc_buffer_count(struct snd_ad1889 *chip, u32 count) +{ + ad1889_writel(chip, AD_DMA_ADCBC, count); + ad1889_writel(chip, AD_DMA_ADCCC, count); +} + +static inline void +ad1889_load_adc_interrupt_count(struct snd_ad1889 *chip, u32 count) +{ + ad1889_writel(chip, AD_DMA_ADCIB, count); + ad1889_writel(chip, AD_DMA_ADCIC, count); +} + +static inline void +ad1889_load_wave_buffer_address(struct snd_ad1889 *chip, u32 address) +{ + ad1889_writel(chip, AD_DMA_WAVBA, address); + ad1889_writel(chip, AD_DMA_WAVCA, address); +} + +static inline void +ad1889_load_wave_buffer_count(struct snd_ad1889 *chip, u32 count) +{ + ad1889_writel(chip, AD_DMA_WAVBC, count); + ad1889_writel(chip, AD_DMA_WAVCC, count); +} + +static inline void +ad1889_load_wave_interrupt_count(struct snd_ad1889 *chip, u32 count) +{ + ad1889_writel(chip, AD_DMA_WAVIB, count); + ad1889_writel(chip, AD_DMA_WAVIC, count); +} + +static void +ad1889_channel_reset(struct snd_ad1889 *chip, unsigned int channel) +{ + u16 reg; + + if (channel & AD_CHAN_WAV) { + /* Disable wave channel */ + reg = ad1889_readw(chip, AD_DS_WSMC) & ~AD_DS_WSMC_WAEN; + ad1889_writew(chip, AD_DS_WSMC, reg); + chip->wave.reg = reg; + + /* disable IRQs */ + reg = ad1889_readw(chip, AD_DMA_WAV); + reg &= AD_DMA_IM_DIS; + reg &= ~AD_DMA_LOOP; + ad1889_writew(chip, AD_DMA_WAV, reg); + + /* clear IRQ and address counters and pointers */ + ad1889_load_wave_buffer_address(chip, 0x0); + ad1889_load_wave_buffer_count(chip, 0x0); + ad1889_load_wave_interrupt_count(chip, 0x0); + + /* flush */ + ad1889_readw(chip, AD_DMA_WAV); + } + + if (channel & AD_CHAN_ADC) { + /* Disable ADC channel */ + reg = ad1889_readw(chip, AD_DS_RAMC) & ~AD_DS_RAMC_ADEN; + ad1889_writew(chip, AD_DS_RAMC, reg); + chip->ramc.reg = reg; + + reg = ad1889_readw(chip, AD_DMA_ADC); + reg &= AD_DMA_IM_DIS; + reg &= ~AD_DMA_LOOP; + ad1889_writew(chip, AD_DMA_ADC, reg); + + ad1889_load_adc_buffer_address(chip, 0x0); + ad1889_load_adc_buffer_count(chip, 0x0); + ad1889_load_adc_interrupt_count(chip, 0x0); + + /* flush */ + ad1889_readw(chip, AD_DMA_ADC); + } +} + +static u16 +snd_ad1889_ac97_read(struct snd_ac97 *ac97, unsigned short reg) +{ + struct snd_ad1889 *chip = ac97->private_data; + return ad1889_readw(chip, AD_AC97_BASE + reg); +} + +static void +snd_ad1889_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val) +{ + struct snd_ad1889 *chip = ac97->private_data; + ad1889_writew(chip, AD_AC97_BASE + reg, val); +} + +static int +snd_ad1889_ac97_ready(struct snd_ad1889 *chip) +{ + int retry = 400; /* average needs 352 msec */ + + while (!(ad1889_readw(chip, AD_AC97_ACIC) & AD_AC97_ACIC_ACRDY) + && --retry) + usleep_range(1000, 2000); + if (!retry) { + dev_err(chip->card->dev, "[%s] Link is not ready.\n", + __func__); + return -EIO; + } + dev_dbg(chip->card->dev, "[%s] ready after %d ms\n", __func__, 400 - retry); + + return 0; +} + +static const struct snd_pcm_hardware snd_ad1889_playback_hw = { + .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BLOCK_TRANSFER, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, + .rate_min = 8000, /* docs say 7000, but we're lazy */ + .rate_max = 48000, + .channels_min = 1, + .channels_max = 2, + .buffer_bytes_max = BUFFER_BYTES_MAX, + .period_bytes_min = PERIOD_BYTES_MIN, + .period_bytes_max = PERIOD_BYTES_MAX, + .periods_min = PERIODS_MIN, + .periods_max = PERIODS_MAX, + /*.fifo_size = 0,*/ +}; + +static const struct snd_pcm_hardware snd_ad1889_capture_hw = { + .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BLOCK_TRANSFER, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, /* docs say we could to VSR, but we're lazy */ + .rate_max = 48000, + .channels_min = 1, + .channels_max = 2, + .buffer_bytes_max = BUFFER_BYTES_MAX, + .period_bytes_min = PERIOD_BYTES_MIN, + .period_bytes_max = PERIOD_BYTES_MAX, + .periods_min = PERIODS_MIN, + .periods_max = PERIODS_MAX, + /*.fifo_size = 0,*/ +}; + +static int +snd_ad1889_playback_open(struct snd_pcm_substream *ss) +{ + struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); + struct snd_pcm_runtime *rt = ss->runtime; + + chip->psubs = ss; + rt->hw = snd_ad1889_playback_hw; + + return 0; +} + +static int +snd_ad1889_capture_open(struct snd_pcm_substream *ss) +{ + struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); + struct snd_pcm_runtime *rt = ss->runtime; + + chip->csubs = ss; + rt->hw = snd_ad1889_capture_hw; + + return 0; +} + +static int +snd_ad1889_playback_close(struct snd_pcm_substream *ss) +{ + struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); + chip->psubs = NULL; + return 0; +} + +static int +snd_ad1889_capture_close(struct snd_pcm_substream *ss) +{ + struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); + chip->csubs = NULL; + return 0; +} + +static int +snd_ad1889_playback_prepare(struct snd_pcm_substream *ss) +{ + struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); + struct snd_pcm_runtime *rt = ss->runtime; + unsigned int size = snd_pcm_lib_buffer_bytes(ss); + unsigned int count = snd_pcm_lib_period_bytes(ss); + u16 reg; + + ad1889_channel_reset(chip, AD_CHAN_WAV); + + reg = ad1889_readw(chip, AD_DS_WSMC); + + /* Mask out 16-bit / Stereo */ + reg &= ~(AD_DS_WSMC_WA16 | AD_DS_WSMC_WAST); + + if (snd_pcm_format_width(rt->format) == 16) + reg |= AD_DS_WSMC_WA16; + + if (rt->channels > 1) + reg |= AD_DS_WSMC_WAST; + + /* let's make sure we don't clobber ourselves */ + spin_lock_irq(&chip->lock); + + chip->wave.size = size; + chip->wave.reg = reg; + chip->wave.addr = rt->dma_addr; + + ad1889_writew(chip, AD_DS_WSMC, chip->wave.reg); + + /* Set sample rates on the codec */ + ad1889_writew(chip, AD_DS_WAS, rt->rate); + + /* Set up DMA */ + ad1889_load_wave_buffer_address(chip, chip->wave.addr); + ad1889_load_wave_buffer_count(chip, size); + ad1889_load_wave_interrupt_count(chip, count); + + /* writes flush */ + ad1889_readw(chip, AD_DS_WSMC); + + spin_unlock_irq(&chip->lock); + + dev_dbg(chip->card->dev, + "prepare playback: addr = 0x%x, count = %u, size = %u, reg = 0x%x, rate = %u\n", + chip->wave.addr, count, size, reg, rt->rate); + return 0; +} + +static int +snd_ad1889_capture_prepare(struct snd_pcm_substream *ss) +{ + struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); + struct snd_pcm_runtime *rt = ss->runtime; + unsigned int size = snd_pcm_lib_buffer_bytes(ss); + unsigned int count = snd_pcm_lib_period_bytes(ss); + u16 reg; + + ad1889_channel_reset(chip, AD_CHAN_ADC); + + reg = ad1889_readw(chip, AD_DS_RAMC); + + /* Mask out 16-bit / Stereo */ + reg &= ~(AD_DS_RAMC_AD16 | AD_DS_RAMC_ADST); + + if (snd_pcm_format_width(rt->format) == 16) + reg |= AD_DS_RAMC_AD16; + + if (rt->channels > 1) + reg |= AD_DS_RAMC_ADST; + + /* let's make sure we don't clobber ourselves */ + spin_lock_irq(&chip->lock); + + chip->ramc.size = size; + chip->ramc.reg = reg; + chip->ramc.addr = rt->dma_addr; + + ad1889_writew(chip, AD_DS_RAMC, chip->ramc.reg); + + /* Set up DMA */ + ad1889_load_adc_buffer_address(chip, chip->ramc.addr); + ad1889_load_adc_buffer_count(chip, size); + ad1889_load_adc_interrupt_count(chip, count); + + /* writes flush */ + ad1889_readw(chip, AD_DS_RAMC); + + spin_unlock_irq(&chip->lock); + + dev_dbg(chip->card->dev, + "prepare capture: addr = 0x%x, count = %u, size = %u, reg = 0x%x, rate = %u\n", + chip->ramc.addr, count, size, reg, rt->rate); + return 0; +} + +/* this is called in atomic context with IRQ disabled. + Must be as fast as possible and not sleep. + DMA should be *triggered* by this call. + The WSMC "WAEN" bit triggers DMA Wave On/Off */ +static int +snd_ad1889_playback_trigger(struct snd_pcm_substream *ss, int cmd) +{ + u16 wsmc; + struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); + + wsmc = ad1889_readw(chip, AD_DS_WSMC); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + /* enable DMA loop & interrupts */ + ad1889_writew(chip, AD_DMA_WAV, AD_DMA_LOOP | AD_DMA_IM_CNT); + wsmc |= AD_DS_WSMC_WAEN; + /* 1 to clear CHSS bit */ + ad1889_writel(chip, AD_DMA_CHSS, AD_DMA_CHSS_WAVS); + ad1889_unmute(chip); + break; + case SNDRV_PCM_TRIGGER_STOP: + ad1889_mute(chip); + wsmc &= ~AD_DS_WSMC_WAEN; + break; + default: + snd_BUG(); + return -EINVAL; + } + + chip->wave.reg = wsmc; + ad1889_writew(chip, AD_DS_WSMC, wsmc); + ad1889_readw(chip, AD_DS_WSMC); /* flush */ + + /* reset the chip when STOP - will disable IRQs */ + if (cmd == SNDRV_PCM_TRIGGER_STOP) + ad1889_channel_reset(chip, AD_CHAN_WAV); + + return 0; +} + +/* this is called in atomic context with IRQ disabled. + Must be as fast as possible and not sleep. + DMA should be *triggered* by this call. + The RAMC "ADEN" bit triggers DMA ADC On/Off */ +static int +snd_ad1889_capture_trigger(struct snd_pcm_substream *ss, int cmd) +{ + u16 ramc; + struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); + + ramc = ad1889_readw(chip, AD_DS_RAMC); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + /* enable DMA loop & interrupts */ + ad1889_writew(chip, AD_DMA_ADC, AD_DMA_LOOP | AD_DMA_IM_CNT); + ramc |= AD_DS_RAMC_ADEN; + /* 1 to clear CHSS bit */ + ad1889_writel(chip, AD_DMA_CHSS, AD_DMA_CHSS_ADCS); + break; + case SNDRV_PCM_TRIGGER_STOP: + ramc &= ~AD_DS_RAMC_ADEN; + break; + default: + return -EINVAL; + } + + chip->ramc.reg = ramc; + ad1889_writew(chip, AD_DS_RAMC, ramc); + ad1889_readw(chip, AD_DS_RAMC); /* flush */ + + /* reset the chip when STOP - will disable IRQs */ + if (cmd == SNDRV_PCM_TRIGGER_STOP) + ad1889_channel_reset(chip, AD_CHAN_ADC); + + return 0; +} + +/* Called in atomic context with IRQ disabled */ +static snd_pcm_uframes_t +snd_ad1889_playback_pointer(struct snd_pcm_substream *ss) +{ + size_t ptr = 0; + struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); + + if (unlikely(!(chip->wave.reg & AD_DS_WSMC_WAEN))) + return 0; + + ptr = ad1889_readl(chip, AD_DMA_WAVCA); + ptr -= chip->wave.addr; + + if (snd_BUG_ON(ptr >= chip->wave.size)) + return 0; + + return bytes_to_frames(ss->runtime, ptr); +} + +/* Called in atomic context with IRQ disabled */ +static snd_pcm_uframes_t +snd_ad1889_capture_pointer(struct snd_pcm_substream *ss) +{ + size_t ptr = 0; + struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); + + if (unlikely(!(chip->ramc.reg & AD_DS_RAMC_ADEN))) + return 0; + + ptr = ad1889_readl(chip, AD_DMA_ADCCA); + ptr -= chip->ramc.addr; + + if (snd_BUG_ON(ptr >= chip->ramc.size)) + return 0; + + return bytes_to_frames(ss->runtime, ptr); +} + +static const struct snd_pcm_ops snd_ad1889_playback_ops = { + .open = snd_ad1889_playback_open, + .close = snd_ad1889_playback_close, + .prepare = snd_ad1889_playback_prepare, + .trigger = snd_ad1889_playback_trigger, + .pointer = snd_ad1889_playback_pointer, +}; + +static const struct snd_pcm_ops snd_ad1889_capture_ops = { + .open = snd_ad1889_capture_open, + .close = snd_ad1889_capture_close, + .prepare = snd_ad1889_capture_prepare, + .trigger = snd_ad1889_capture_trigger, + .pointer = snd_ad1889_capture_pointer, +}; + +static irqreturn_t +snd_ad1889_interrupt(int irq, void *dev_id) +{ + unsigned long st; + struct snd_ad1889 *chip = dev_id; + + st = ad1889_readl(chip, AD_DMA_DISR); + + /* clear ISR */ + ad1889_writel(chip, AD_DMA_DISR, st); + + st &= AD_INTR_MASK; + + if (unlikely(!st)) + return IRQ_NONE; + + if (st & (AD_DMA_DISR_PMAI|AD_DMA_DISR_PTAI)) + dev_dbg(chip->card->dev, + "Unexpected master or target abort interrupt!\n"); + + if ((st & AD_DMA_DISR_WAVI) && chip->psubs) + snd_pcm_period_elapsed(chip->psubs); + if ((st & AD_DMA_DISR_ADCI) && chip->csubs) + snd_pcm_period_elapsed(chip->csubs); + + return IRQ_HANDLED; +} + +static int +snd_ad1889_pcm_init(struct snd_ad1889 *chip, int device) +{ + int err; + struct snd_pcm *pcm; + + err = snd_pcm_new(chip->card, chip->card->driver, device, 1, 1, &pcm); + if (err < 0) + return err; + + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + &snd_ad1889_playback_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, + &snd_ad1889_capture_ops); + + pcm->private_data = chip; + pcm->info_flags = 0; + strcpy(pcm->name, chip->card->shortname); + + chip->pcm = pcm; + chip->psubs = NULL; + chip->csubs = NULL; + + snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev, + BUFFER_BYTES_MAX / 2, BUFFER_BYTES_MAX); + + return 0; +} + +static void +snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) +{ + struct snd_ad1889 *chip = entry->private_data; + u16 reg; + int tmp; + + reg = ad1889_readw(chip, AD_DS_WSMC); + snd_iprintf(buffer, "Wave output: %s\n", + (reg & AD_DS_WSMC_WAEN) ? "enabled" : "disabled"); + snd_iprintf(buffer, "Wave Channels: %s\n", + (reg & AD_DS_WSMC_WAST) ? "stereo" : "mono"); + snd_iprintf(buffer, "Wave Quality: %d-bit linear\n", + (reg & AD_DS_WSMC_WA16) ? 16 : 8); + + /* WARQ is at offset 12 */ + tmp = (reg & AD_DS_WSMC_WARQ) ? + ((((reg & AD_DS_WSMC_WARQ) >> 12) & 0x01) ? 12 : 18) : 4; + tmp /= (reg & AD_DS_WSMC_WAST) ? 2 : 1; + + snd_iprintf(buffer, "Wave FIFO: %d %s words\n\n", tmp, + (reg & AD_DS_WSMC_WAST) ? "stereo" : "mono"); + + + snd_iprintf(buffer, "Synthesis output: %s\n", + reg & AD_DS_WSMC_SYEN ? "enabled" : "disabled"); + + /* SYRQ is at offset 4 */ + tmp = (reg & AD_DS_WSMC_SYRQ) ? + ((((reg & AD_DS_WSMC_SYRQ) >> 4) & 0x01) ? 12 : 18) : 4; + tmp /= (reg & AD_DS_WSMC_WAST) ? 2 : 1; + + snd_iprintf(buffer, "Synthesis FIFO: %d %s words\n\n", tmp, + (reg & AD_DS_WSMC_WAST) ? "stereo" : "mono"); + + reg = ad1889_readw(chip, AD_DS_RAMC); + snd_iprintf(buffer, "ADC input: %s\n", + (reg & AD_DS_RAMC_ADEN) ? "enabled" : "disabled"); + snd_iprintf(buffer, "ADC Channels: %s\n", + (reg & AD_DS_RAMC_ADST) ? "stereo" : "mono"); + snd_iprintf(buffer, "ADC Quality: %d-bit linear\n", + (reg & AD_DS_RAMC_AD16) ? 16 : 8); + + /* ACRQ is at offset 4 */ + tmp = (reg & AD_DS_RAMC_ACRQ) ? + ((((reg & AD_DS_RAMC_ACRQ) >> 4) & 0x01) ? 12 : 18) : 4; + tmp /= (reg & AD_DS_RAMC_ADST) ? 2 : 1; + + snd_iprintf(buffer, "ADC FIFO: %d %s words\n\n", tmp, + (reg & AD_DS_RAMC_ADST) ? "stereo" : "mono"); + + snd_iprintf(buffer, "Resampler input: %s\n", + reg & AD_DS_RAMC_REEN ? "enabled" : "disabled"); + + /* RERQ is at offset 12 */ + tmp = (reg & AD_DS_RAMC_RERQ) ? + ((((reg & AD_DS_RAMC_RERQ) >> 12) & 0x01) ? 12 : 18) : 4; + tmp /= (reg & AD_DS_RAMC_ADST) ? 2 : 1; + + snd_iprintf(buffer, "Resampler FIFO: %d %s words\n\n", tmp, + (reg & AD_DS_WSMC_WAST) ? "stereo" : "mono"); + + + /* doc says LSB represents -1.5dB, but the max value (-94.5dB) + suggests that LSB is -3dB, which is more coherent with the logarithmic + nature of the dB scale */ + reg = ad1889_readw(chip, AD_DS_WADA); + snd_iprintf(buffer, "Left: %s, -%d dB\n", + (reg & AD_DS_WADA_LWAM) ? "mute" : "unmute", + ((reg & AD_DS_WADA_LWAA) >> 8) * 3); + reg = ad1889_readw(chip, AD_DS_WADA); + snd_iprintf(buffer, "Right: %s, -%d dB\n", + (reg & AD_DS_WADA_RWAM) ? "mute" : "unmute", + (reg & AD_DS_WADA_RWAA) * 3); + + reg = ad1889_readw(chip, AD_DS_WAS); + snd_iprintf(buffer, "Wave samplerate: %u Hz\n", reg); + reg = ad1889_readw(chip, AD_DS_RES); + snd_iprintf(buffer, "Resampler samplerate: %u Hz\n", reg); +} + +static void +snd_ad1889_proc_init(struct snd_ad1889 *chip) +{ + snd_card_ro_proc_new(chip->card, chip->card->driver, + chip, snd_ad1889_proc_read); +} + +static const struct ac97_quirk ac97_quirks[] = { + { + .subvendor = 0x11d4, /* AD */ + .subdevice = 0x1889, /* AD1889 */ + .codec_id = AC97_ID_AD1819, + .name = "AD1889", + .type = AC97_TUNE_HP_ONLY + }, + { } /* terminator */ +}; + +static void +snd_ad1889_ac97_xinit(struct snd_ad1889 *chip) +{ + u16 reg; + + reg = ad1889_readw(chip, AD_AC97_ACIC); + reg |= AD_AC97_ACIC_ACRD; /* Reset Disable */ + ad1889_writew(chip, AD_AC97_ACIC, reg); + ad1889_readw(chip, AD_AC97_ACIC); /* flush posted write */ + udelay(10); + /* Interface Enable */ + reg |= AD_AC97_ACIC_ACIE; + ad1889_writew(chip, AD_AC97_ACIC, reg); + + snd_ad1889_ac97_ready(chip); + + /* Audio Stream Output | Variable Sample Rate Mode */ + reg = ad1889_readw(chip, AD_AC97_ACIC); + reg |= AD_AC97_ACIC_ASOE | AD_AC97_ACIC_VSRM; + ad1889_writew(chip, AD_AC97_ACIC, reg); + ad1889_readw(chip, AD_AC97_ACIC); /* flush posted write */ + +} + +static int +snd_ad1889_ac97_init(struct snd_ad1889 *chip, const char *quirk_override) +{ + int err; + struct snd_ac97_template ac97; + static const struct snd_ac97_bus_ops ops = { + .write = snd_ad1889_ac97_write, + .read = snd_ad1889_ac97_read, + }; + + /* doing that here, it works. */ + snd_ad1889_ac97_xinit(chip); + + err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus); + if (err < 0) + return err; + + memset(&ac97, 0, sizeof(ac97)); + ac97.private_data = chip; + ac97.pci = chip->pci; + + err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97); + if (err < 0) + return err; + + snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override); + + return 0; +} + +static void +snd_ad1889_free(struct snd_card *card) +{ + struct snd_ad1889 *chip = card->private_data; + + spin_lock_irq(&chip->lock); + + ad1889_mute(chip); + + /* Turn off interrupt on count and zero DMA registers */ + ad1889_channel_reset(chip, AD_CHAN_WAV | AD_CHAN_ADC); + + /* clear DISR. If we don't, we'd better jump off the Eiffel Tower */ + ad1889_writel(chip, AD_DMA_DISR, AD_DMA_DISR_PTAI | AD_DMA_DISR_PMAI); + ad1889_readl(chip, AD_DMA_DISR); /* flush, dammit! */ + + spin_unlock_irq(&chip->lock); +} + +static int +snd_ad1889_create(struct snd_card *card, struct pci_dev *pci) +{ + struct snd_ad1889 *chip = card->private_data; + int err; + + err = pcim_enable_device(pci); + if (err < 0) + return err; + + /* check PCI availability (32bit DMA) */ + if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32))) { + dev_err(card->dev, "error setting 32-bit DMA mask.\n"); + return -ENXIO; + } + + chip->card = card; + chip->pci = pci; + chip->irq = -1; + + /* (1) PCI resource allocation */ + err = pcim_iomap_regions(pci, 1 << 0, card->driver); + if (err < 0) + return err; + + chip->bar = pci_resource_start(pci, 0); + chip->iobase = pcim_iomap_table(pci)[0]; + + pci_set_master(pci); + + spin_lock_init(&chip->lock); /* only now can we call ad1889_free */ + + if (devm_request_irq(&pci->dev, pci->irq, snd_ad1889_interrupt, + IRQF_SHARED, KBUILD_MODNAME, chip)) { + dev_err(card->dev, "cannot obtain IRQ %d\n", pci->irq); + return -EBUSY; + } + + chip->irq = pci->irq; + card->sync_irq = chip->irq; + card->private_free = snd_ad1889_free; + + /* (2) initialization of the chip hardware */ + ad1889_writew(chip, AD_DS_CCS, AD_DS_CCS_CLKEN); /* turn on clock */ + ad1889_readw(chip, AD_DS_CCS); /* flush posted write */ + + usleep_range(10000, 11000); + + /* enable Master and Target abort interrupts */ + ad1889_writel(chip, AD_DMA_DISR, AD_DMA_DISR_PMAE | AD_DMA_DISR_PTAE); + + return 0; +} + +static int +__snd_ad1889_probe(struct pci_dev *pci, + const struct pci_device_id *pci_id) +{ + int err; + static int devno; + struct snd_card *card; + struct snd_ad1889 *chip; + + /* (1) */ + if (devno >= SNDRV_CARDS) + return -ENODEV; + if (!enable[devno]) { + devno++; + return -ENOENT; + } + + /* (2) */ + err = snd_devm_card_new(&pci->dev, index[devno], id[devno], THIS_MODULE, + sizeof(*chip), &card); + if (err < 0) + return err; + chip = card->private_data; + + strcpy(card->driver, "AD1889"); + strcpy(card->shortname, "Analog Devices AD1889"); + + /* (3) */ + err = snd_ad1889_create(card, pci); + if (err < 0) + return err; + + /* (4) */ + sprintf(card->longname, "%s at 0x%lx irq %i", + card->shortname, chip->bar, chip->irq); + + /* (5) */ + /* register AC97 mixer */ + err = snd_ad1889_ac97_init(chip, ac97_quirk[devno]); + if (err < 0) + return err; + + err = snd_ad1889_pcm_init(chip, 0); + if (err < 0) + return err; + + /* register proc interface */ + snd_ad1889_proc_init(chip); + + /* (6) */ + err = snd_card_register(card); + if (err < 0) + return err; + + /* (7) */ + pci_set_drvdata(pci, card); + + devno++; + return 0; +} + +static int snd_ad1889_probe(struct pci_dev *pci, + const struct pci_device_id *pci_id) +{ + return snd_card_free_on_error(&pci->dev, __snd_ad1889_probe(pci, pci_id)); +} + +static const struct pci_device_id snd_ad1889_ids[] = { + { PCI_DEVICE(PCI_VENDOR_ID_ANALOG_DEVICES, PCI_DEVICE_ID_AD1889JS) }, + { 0, }, +}; +MODULE_DEVICE_TABLE(pci, snd_ad1889_ids); + +static struct pci_driver ad1889_pci_driver = { + .name = KBUILD_MODNAME, + .id_table = snd_ad1889_ids, + .probe = snd_ad1889_probe, +}; + +module_pci_driver(ad1889_pci_driver); -- cgit v1.2.3