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/cs5535audio/cs5535audio_pcm.c | 435 ++++++++++++++++++++++++++++++++ 1 file changed, 435 insertions(+) create mode 100644 sound/pci/cs5535audio/cs5535audio_pcm.c (limited to 'sound/pci/cs5535audio/cs5535audio_pcm.c') diff --git a/sound/pci/cs5535audio/cs5535audio_pcm.c b/sound/pci/cs5535audio/cs5535audio_pcm.c new file mode 100644 index 000000000..9c88e99e3 --- /dev/null +++ b/sound/pci/cs5535audio/cs5535audio_pcm.c @@ -0,0 +1,435 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for audio on multifunction CS5535 companion device + * Copyright (C) Jaya Kumar + * + * Based on Jaroslav Kysela and Takashi Iwai's examples. + * This work was sponsored by CIS(M) Sdn Bhd. + * + * todo: add be fmt support, spdif, pm + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "cs5535audio.h" + +static const struct snd_pcm_hardware snd_cs5535audio_playback = +{ + .info = ( + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_RESUME + ), + .formats = ( + SNDRV_PCM_FMTBIT_S16_LE + ), + .rates = ( + SNDRV_PCM_RATE_CONTINUOUS | + SNDRV_PCM_RATE_8000_48000 + ), + .rate_min = 4000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = (128*1024), + .period_bytes_min = 64, + .period_bytes_max = (64*1024 - 16), + .periods_min = 1, + .periods_max = CS5535AUDIO_MAX_DESCRIPTORS, + .fifo_size = 0, +}; + +static const struct snd_pcm_hardware snd_cs5535audio_capture = +{ + .info = ( + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID + ), + .formats = ( + SNDRV_PCM_FMTBIT_S16_LE + ), + .rates = ( + SNDRV_PCM_RATE_CONTINUOUS | + SNDRV_PCM_RATE_8000_48000 + ), + .rate_min = 4000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = (128*1024), + .period_bytes_min = 64, + .period_bytes_max = (64*1024 - 16), + .periods_min = 1, + .periods_max = CS5535AUDIO_MAX_DESCRIPTORS, + .fifo_size = 0, +}; + +static int snd_cs5535audio_playback_open(struct snd_pcm_substream *substream) +{ + int err; + struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + + runtime->hw = snd_cs5535audio_playback; + runtime->hw.rates = cs5535au->ac97->rates[AC97_RATES_FRONT_DAC]; + snd_pcm_limit_hw_rates(runtime); + cs5535au->playback_substream = substream; + runtime->private_data = &(cs5535au->dmas[CS5535AUDIO_DMA_PLAYBACK]); + err = snd_pcm_hw_constraint_integer(runtime, + SNDRV_PCM_HW_PARAM_PERIODS); + if (err < 0) + return err; + + return 0; +} + +static int snd_cs5535audio_playback_close(struct snd_pcm_substream *substream) +{ + return 0; +} + +#define CS5535AUDIO_DESC_LIST_SIZE \ + PAGE_ALIGN(CS5535AUDIO_MAX_DESCRIPTORS * sizeof(struct cs5535audio_dma_desc)) + +static int cs5535audio_build_dma_packets(struct cs5535audio *cs5535au, + struct cs5535audio_dma *dma, + struct snd_pcm_substream *substream, + unsigned int periods, + unsigned int period_bytes) +{ + unsigned int i; + u32 addr, jmpprd_addr; + struct cs5535audio_dma_desc *lastdesc; + + if (periods > CS5535AUDIO_MAX_DESCRIPTORS) + return -ENOMEM; + + if (dma->desc_buf.area == NULL) { + if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, + &cs5535au->pci->dev, + CS5535AUDIO_DESC_LIST_SIZE+1, + &dma->desc_buf) < 0) + return -ENOMEM; + dma->period_bytes = dma->periods = 0; + } + + if (dma->periods == periods && dma->period_bytes == period_bytes) + return 0; + + /* the u32 cast is okay because in snd*create we successfully told + pci alloc that we're only 32 bit capable so the upper will be 0 */ + addr = (u32) substream->runtime->dma_addr; + for (i = 0; i < periods; i++) { + struct cs5535audio_dma_desc *desc = + &((struct cs5535audio_dma_desc *) dma->desc_buf.area)[i]; + desc->addr = cpu_to_le32(addr); + desc->size = cpu_to_le16(period_bytes); + desc->ctlreserved = cpu_to_le16(PRD_EOP); + addr += period_bytes; + } + /* we reserved one dummy descriptor at the end to do the PRD jump */ + lastdesc = &((struct cs5535audio_dma_desc *) dma->desc_buf.area)[periods]; + lastdesc->addr = cpu_to_le32((u32) dma->desc_buf.addr); + lastdesc->size = 0; + lastdesc->ctlreserved = cpu_to_le16(PRD_JMP); + jmpprd_addr = (u32)dma->desc_buf.addr + + sizeof(struct cs5535audio_dma_desc) * periods; + + dma->substream = substream; + dma->period_bytes = period_bytes; + dma->periods = periods; + spin_lock_irq(&cs5535au->reg_lock); + dma->ops->disable_dma(cs5535au); + dma->ops->setup_prd(cs5535au, jmpprd_addr); + spin_unlock_irq(&cs5535au->reg_lock); + return 0; +} + +static void cs5535audio_playback_enable_dma(struct cs5535audio *cs5535au) +{ + cs_writeb(cs5535au, ACC_BM0_CMD, BM_CTL_EN); +} + +static void cs5535audio_playback_disable_dma(struct cs5535audio *cs5535au) +{ + cs_writeb(cs5535au, ACC_BM0_CMD, 0); +} + +static void cs5535audio_playback_pause_dma(struct cs5535audio *cs5535au) +{ + cs_writeb(cs5535au, ACC_BM0_CMD, BM_CTL_PAUSE); +} + +static void cs5535audio_playback_setup_prd(struct cs5535audio *cs5535au, + u32 prd_addr) +{ + cs_writel(cs5535au, ACC_BM0_PRD, prd_addr); +} + +static u32 cs5535audio_playback_read_prd(struct cs5535audio *cs5535au) +{ + return cs_readl(cs5535au, ACC_BM0_PRD); +} + +static u32 cs5535audio_playback_read_dma_pntr(struct cs5535audio *cs5535au) +{ + return cs_readl(cs5535au, ACC_BM0_PNTR); +} + +static void cs5535audio_capture_enable_dma(struct cs5535audio *cs5535au) +{ + cs_writeb(cs5535au, ACC_BM1_CMD, BM_CTL_EN); +} + +static void cs5535audio_capture_disable_dma(struct cs5535audio *cs5535au) +{ + cs_writeb(cs5535au, ACC_BM1_CMD, 0); +} + +static void cs5535audio_capture_pause_dma(struct cs5535audio *cs5535au) +{ + cs_writeb(cs5535au, ACC_BM1_CMD, BM_CTL_PAUSE); +} + +static void cs5535audio_capture_setup_prd(struct cs5535audio *cs5535au, + u32 prd_addr) +{ + cs_writel(cs5535au, ACC_BM1_PRD, prd_addr); +} + +static u32 cs5535audio_capture_read_prd(struct cs5535audio *cs5535au) +{ + return cs_readl(cs5535au, ACC_BM1_PRD); +} + +static u32 cs5535audio_capture_read_dma_pntr(struct cs5535audio *cs5535au) +{ + return cs_readl(cs5535au, ACC_BM1_PNTR); +} + +static void cs5535audio_clear_dma_packets(struct cs5535audio *cs5535au, + struct cs5535audio_dma *dma, + struct snd_pcm_substream *substream) +{ + snd_dma_free_pages(&dma->desc_buf); + dma->desc_buf.area = NULL; + dma->substream = NULL; +} + +static int snd_cs5535audio_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); + struct cs5535audio_dma *dma = substream->runtime->private_data; + int err; + + dma->buf_addr = substream->runtime->dma_addr; + dma->buf_bytes = params_buffer_bytes(hw_params); + + err = cs5535audio_build_dma_packets(cs5535au, dma, substream, + params_periods(hw_params), + params_period_bytes(hw_params)); + if (!err) + dma->pcm_open_flag = 1; + + return err; +} + +static int snd_cs5535audio_hw_free(struct snd_pcm_substream *substream) +{ + struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); + struct cs5535audio_dma *dma = substream->runtime->private_data; + + if (dma->pcm_open_flag) { + if (substream == cs5535au->playback_substream) + snd_ac97_update_power(cs5535au->ac97, + AC97_PCM_FRONT_DAC_RATE, 0); + else + snd_ac97_update_power(cs5535au->ac97, + AC97_PCM_LR_ADC_RATE, 0); + dma->pcm_open_flag = 0; + } + cs5535audio_clear_dma_packets(cs5535au, dma, substream); + return 0; +} + +static int snd_cs5535audio_playback_prepare(struct snd_pcm_substream *substream) +{ + struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); + return snd_ac97_set_rate(cs5535au->ac97, AC97_PCM_FRONT_DAC_RATE, + substream->runtime->rate); +} + +static int snd_cs5535audio_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); + struct cs5535audio_dma *dma = substream->runtime->private_data; + int err = 0; + + spin_lock(&cs5535au->reg_lock); + switch (cmd) { + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + dma->ops->pause_dma(cs5535au); + break; + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + dma->ops->enable_dma(cs5535au); + break; + case SNDRV_PCM_TRIGGER_START: + dma->ops->enable_dma(cs5535au); + break; + case SNDRV_PCM_TRIGGER_RESUME: + dma->ops->enable_dma(cs5535au); + break; + case SNDRV_PCM_TRIGGER_STOP: + dma->ops->disable_dma(cs5535au); + break; + case SNDRV_PCM_TRIGGER_SUSPEND: + dma->ops->disable_dma(cs5535au); + break; + default: + dev_err(cs5535au->card->dev, "unhandled trigger\n"); + err = -EINVAL; + break; + } + spin_unlock(&cs5535au->reg_lock); + return err; +} + +static snd_pcm_uframes_t snd_cs5535audio_pcm_pointer(struct snd_pcm_substream + *substream) +{ + struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); + u32 curdma; + struct cs5535audio_dma *dma; + + dma = substream->runtime->private_data; + curdma = dma->ops->read_dma_pntr(cs5535au); + if (curdma < dma->buf_addr) { + dev_err(cs5535au->card->dev, "curdma=%x < %x bufaddr.\n", + curdma, dma->buf_addr); + return 0; + } + curdma -= dma->buf_addr; + if (curdma >= dma->buf_bytes) { + dev_err(cs5535au->card->dev, "diff=%x >= %x buf_bytes.\n", + curdma, dma->buf_bytes); + return 0; + } + return bytes_to_frames(substream->runtime, curdma); +} + +static int snd_cs5535audio_capture_open(struct snd_pcm_substream *substream) +{ + int err; + struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + + runtime->hw = snd_cs5535audio_capture; + runtime->hw.rates = cs5535au->ac97->rates[AC97_RATES_ADC]; + snd_pcm_limit_hw_rates(runtime); + cs5535au->capture_substream = substream; + runtime->private_data = &(cs5535au->dmas[CS5535AUDIO_DMA_CAPTURE]); + err = snd_pcm_hw_constraint_integer(runtime, + SNDRV_PCM_HW_PARAM_PERIODS); + if (err < 0) + return err; + olpc_capture_open(cs5535au->ac97); + return 0; +} + +static int snd_cs5535audio_capture_close(struct snd_pcm_substream *substream) +{ + struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); + olpc_capture_close(cs5535au->ac97); + return 0; +} + +static int snd_cs5535audio_capture_prepare(struct snd_pcm_substream *substream) +{ + struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); + return snd_ac97_set_rate(cs5535au->ac97, AC97_PCM_LR_ADC_RATE, + substream->runtime->rate); +} + +static const struct snd_pcm_ops snd_cs5535audio_playback_ops = { + .open = snd_cs5535audio_playback_open, + .close = snd_cs5535audio_playback_close, + .hw_params = snd_cs5535audio_hw_params, + .hw_free = snd_cs5535audio_hw_free, + .prepare = snd_cs5535audio_playback_prepare, + .trigger = snd_cs5535audio_trigger, + .pointer = snd_cs5535audio_pcm_pointer, +}; + +static const struct snd_pcm_ops snd_cs5535audio_capture_ops = { + .open = snd_cs5535audio_capture_open, + .close = snd_cs5535audio_capture_close, + .hw_params = snd_cs5535audio_hw_params, + .hw_free = snd_cs5535audio_hw_free, + .prepare = snd_cs5535audio_capture_prepare, + .trigger = snd_cs5535audio_trigger, + .pointer = snd_cs5535audio_pcm_pointer, +}; + +static const struct cs5535audio_dma_ops snd_cs5535audio_playback_dma_ops = { + .type = CS5535AUDIO_DMA_PLAYBACK, + .enable_dma = cs5535audio_playback_enable_dma, + .disable_dma = cs5535audio_playback_disable_dma, + .setup_prd = cs5535audio_playback_setup_prd, + .read_prd = cs5535audio_playback_read_prd, + .pause_dma = cs5535audio_playback_pause_dma, + .read_dma_pntr = cs5535audio_playback_read_dma_pntr, +}; + +static const struct cs5535audio_dma_ops snd_cs5535audio_capture_dma_ops = { + .type = CS5535AUDIO_DMA_CAPTURE, + .enable_dma = cs5535audio_capture_enable_dma, + .disable_dma = cs5535audio_capture_disable_dma, + .setup_prd = cs5535audio_capture_setup_prd, + .read_prd = cs5535audio_capture_read_prd, + .pause_dma = cs5535audio_capture_pause_dma, + .read_dma_pntr = cs5535audio_capture_read_dma_pntr, +}; + +int snd_cs5535audio_pcm(struct cs5535audio *cs5535au) +{ + struct snd_pcm *pcm; + int err; + + err = snd_pcm_new(cs5535au->card, "CS5535 Audio", 0, 1, 1, &pcm); + if (err < 0) + return err; + + cs5535au->dmas[CS5535AUDIO_DMA_PLAYBACK].ops = + &snd_cs5535audio_playback_dma_ops; + cs5535au->dmas[CS5535AUDIO_DMA_CAPTURE].ops = + &snd_cs5535audio_capture_dma_ops; + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + &snd_cs5535audio_playback_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, + &snd_cs5535audio_capture_ops); + + pcm->private_data = cs5535au; + pcm->info_flags = 0; + strcpy(pcm->name, "CS5535 Audio"); + + snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, + &cs5535au->pci->dev, + 64*1024, 128*1024); + cs5535au->pcm = pcm; + + return 0; +} + -- cgit v1.2.3