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/codecs/adau1701.c | 888 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 888 insertions(+) create mode 100644 sound/soc/codecs/adau1701.c (limited to 'sound/soc/codecs/adau1701.c') diff --git a/sound/soc/codecs/adau1701.c b/sound/soc/codecs/adau1701.c new file mode 100644 index 000000000..135a7db7f --- /dev/null +++ b/sound/soc/codecs/adau1701.c @@ -0,0 +1,888 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for ADAU1701 SigmaDSP processor + * + * Copyright 2011 Analog Devices Inc. + * Author: Lars-Peter Clausen + * based on an inital version by Cliff Cai + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "sigmadsp.h" +#include "adau1701.h" + +#define ADAU1701_SAFELOAD_DATA(i) (0x0810 + (i)) +#define ADAU1701_SAFELOAD_ADDR(i) (0x0815 + (i)) + +#define ADAU1701_DSPCTRL 0x081c +#define ADAU1701_SEROCTL 0x081e +#define ADAU1701_SERICTL 0x081f + +#define ADAU1701_AUXNPOW 0x0822 +#define ADAU1701_PINCONF_0 0x0820 +#define ADAU1701_PINCONF_1 0x0821 +#define ADAU1701_AUXNPOW 0x0822 + +#define ADAU1701_OSCIPOW 0x0826 +#define ADAU1701_DACSET 0x0827 + +#define ADAU1701_MAX_REGISTER 0x0828 + +#define ADAU1701_DSPCTRL_CR (1 << 2) +#define ADAU1701_DSPCTRL_DAM (1 << 3) +#define ADAU1701_DSPCTRL_ADM (1 << 4) +#define ADAU1701_DSPCTRL_IST (1 << 5) +#define ADAU1701_DSPCTRL_SR_48 0x00 +#define ADAU1701_DSPCTRL_SR_96 0x01 +#define ADAU1701_DSPCTRL_SR_192 0x02 +#define ADAU1701_DSPCTRL_SR_MASK 0x03 + +#define ADAU1701_SEROCTL_INV_LRCLK 0x2000 +#define ADAU1701_SEROCTL_INV_BCLK 0x1000 +#define ADAU1701_SEROCTL_MASTER 0x0800 + +#define ADAU1701_SEROCTL_OBF16 0x0000 +#define ADAU1701_SEROCTL_OBF8 0x0200 +#define ADAU1701_SEROCTL_OBF4 0x0400 +#define ADAU1701_SEROCTL_OBF2 0x0600 +#define ADAU1701_SEROCTL_OBF_MASK 0x0600 + +#define ADAU1701_SEROCTL_OLF1024 0x0000 +#define ADAU1701_SEROCTL_OLF512 0x0080 +#define ADAU1701_SEROCTL_OLF256 0x0100 +#define ADAU1701_SEROCTL_OLF_MASK 0x0180 + +#define ADAU1701_SEROCTL_MSB_DEALY1 0x0000 +#define ADAU1701_SEROCTL_MSB_DEALY0 0x0004 +#define ADAU1701_SEROCTL_MSB_DEALY8 0x0008 +#define ADAU1701_SEROCTL_MSB_DEALY12 0x000c +#define ADAU1701_SEROCTL_MSB_DEALY16 0x0010 +#define ADAU1701_SEROCTL_MSB_DEALY_MASK 0x001c + +#define ADAU1701_SEROCTL_WORD_LEN_24 0x0000 +#define ADAU1701_SEROCTL_WORD_LEN_20 0x0001 +#define ADAU1701_SEROCTL_WORD_LEN_16 0x0002 +#define ADAU1701_SEROCTL_WORD_LEN_MASK 0x0003 + +#define ADAU1701_AUXNPOW_VBPD 0x40 +#define ADAU1701_AUXNPOW_VRPD 0x20 + +#define ADAU1701_SERICTL_I2S 0 +#define ADAU1701_SERICTL_LEFTJ 1 +#define ADAU1701_SERICTL_TDM 2 +#define ADAU1701_SERICTL_RIGHTJ_24 3 +#define ADAU1701_SERICTL_RIGHTJ_20 4 +#define ADAU1701_SERICTL_RIGHTJ_18 5 +#define ADAU1701_SERICTL_RIGHTJ_16 6 +#define ADAU1701_SERICTL_MODE_MASK 7 +#define ADAU1701_SERICTL_INV_BCLK BIT(3) +#define ADAU1701_SERICTL_INV_LRCLK BIT(4) + +#define ADAU1701_OSCIPOW_OPD 0x04 +#define ADAU1701_DACSET_DACINIT 1 + +#define ADAU1707_CLKDIV_UNSET (-1U) + +#define ADAU1701_FIRMWARE "adau1701.bin" + +static const char * const supply_names[] = { + "dvdd", "avdd" +}; + +struct adau1701 { + struct gpio_desc *gpio_nreset; + struct gpio_descs *gpio_pll_mode; + unsigned int dai_fmt; + unsigned int pll_clkdiv; + unsigned int sysclk; + struct regmap *regmap; + struct i2c_client *client; + u8 pin_config[12]; + + struct sigmadsp *sigmadsp; + struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)]; +}; + +static const struct snd_kcontrol_new adau1701_controls[] = { + SOC_SINGLE("Master Capture Switch", ADAU1701_DSPCTRL, 4, 1, 0), +}; + +static const struct snd_soc_dapm_widget adau1701_dapm_widgets[] = { + SND_SOC_DAPM_DAC("DAC0", "Playback", ADAU1701_AUXNPOW, 3, 1), + SND_SOC_DAPM_DAC("DAC1", "Playback", ADAU1701_AUXNPOW, 2, 1), + SND_SOC_DAPM_DAC("DAC2", "Playback", ADAU1701_AUXNPOW, 1, 1), + SND_SOC_DAPM_DAC("DAC3", "Playback", ADAU1701_AUXNPOW, 0, 1), + SND_SOC_DAPM_ADC("ADC", "Capture", ADAU1701_AUXNPOW, 7, 1), + + SND_SOC_DAPM_OUTPUT("OUT0"), + SND_SOC_DAPM_OUTPUT("OUT1"), + SND_SOC_DAPM_OUTPUT("OUT2"), + SND_SOC_DAPM_OUTPUT("OUT3"), + SND_SOC_DAPM_INPUT("IN0"), + SND_SOC_DAPM_INPUT("IN1"), +}; + +static const struct snd_soc_dapm_route adau1701_dapm_routes[] = { + { "OUT0", NULL, "DAC0" }, + { "OUT1", NULL, "DAC1" }, + { "OUT2", NULL, "DAC2" }, + { "OUT3", NULL, "DAC3" }, + + { "ADC", NULL, "IN0" }, + { "ADC", NULL, "IN1" }, +}; + +static unsigned int adau1701_register_size(struct device *dev, + unsigned int reg) +{ + switch (reg) { + case ADAU1701_PINCONF_0: + case ADAU1701_PINCONF_1: + return 3; + case ADAU1701_DSPCTRL: + case ADAU1701_SEROCTL: + case ADAU1701_AUXNPOW: + case ADAU1701_OSCIPOW: + case ADAU1701_DACSET: + return 2; + case ADAU1701_SERICTL: + return 1; + } + + dev_err(dev, "Unsupported register address: %d\n", reg); + return 0; +} + +static bool adau1701_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case ADAU1701_DACSET: + case ADAU1701_DSPCTRL: + return true; + default: + return false; + } +} + +static int adau1701_reg_write(void *context, unsigned int reg, + unsigned int value) +{ + struct i2c_client *client = context; + unsigned int i; + unsigned int size; + uint8_t buf[5]; + int ret; + + size = adau1701_register_size(&client->dev, reg); + if (size == 0) + return -EINVAL; + + buf[0] = reg >> 8; + buf[1] = reg & 0xff; + + for (i = size + 1; i >= 2; --i) { + buf[i] = value; + value >>= 8; + } + + ret = i2c_master_send(client, buf, size + 2); + if (ret == size + 2) + return 0; + else if (ret < 0) + return ret; + else + return -EIO; +} + +static int adau1701_reg_read(void *context, unsigned int reg, + unsigned int *value) +{ + int ret; + unsigned int i; + unsigned int size; + uint8_t send_buf[2], recv_buf[3]; + struct i2c_client *client = context; + struct i2c_msg msgs[2]; + + size = adau1701_register_size(&client->dev, reg); + if (size == 0) + return -EINVAL; + + send_buf[0] = reg >> 8; + send_buf[1] = reg & 0xff; + + msgs[0].addr = client->addr; + msgs[0].len = sizeof(send_buf); + msgs[0].buf = send_buf; + msgs[0].flags = 0; + + msgs[1].addr = client->addr; + msgs[1].len = size; + msgs[1].buf = recv_buf; + msgs[1].flags = I2C_M_RD; + + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret < 0) + return ret; + else if (ret != ARRAY_SIZE(msgs)) + return -EIO; + + *value = 0; + + for (i = 0; i < size; i++) { + *value <<= 8; + *value |= recv_buf[i]; + } + + return 0; +} + +static int adau1701_safeload(struct sigmadsp *sigmadsp, unsigned int addr, + const uint8_t bytes[], size_t len) +{ + struct i2c_client *client = to_i2c_client(sigmadsp->dev); + struct adau1701 *adau1701 = i2c_get_clientdata(client); + unsigned int val; + unsigned int i; + uint8_t buf[10]; + int ret; + + ret = regmap_read(adau1701->regmap, ADAU1701_DSPCTRL, &val); + if (ret) + return ret; + + if (val & ADAU1701_DSPCTRL_IST) + msleep(50); + + for (i = 0; i < len / 4; i++) { + put_unaligned_le16(ADAU1701_SAFELOAD_DATA(i), buf); + buf[2] = 0x00; + memcpy(buf + 3, bytes + i * 4, 4); + ret = i2c_master_send(client, buf, 7); + if (ret < 0) + return ret; + else if (ret != 7) + return -EIO; + + put_unaligned_le16(ADAU1701_SAFELOAD_ADDR(i), buf); + put_unaligned_le16(addr + i, buf + 2); + ret = i2c_master_send(client, buf, 4); + if (ret < 0) + return ret; + else if (ret != 4) + return -EIO; + } + + return regmap_update_bits(adau1701->regmap, ADAU1701_DSPCTRL, + ADAU1701_DSPCTRL_IST, ADAU1701_DSPCTRL_IST); +} + +static const struct sigmadsp_ops adau1701_sigmadsp_ops = { + .safeload = adau1701_safeload, +}; + +static int adau1701_reset(struct snd_soc_component *component, unsigned int clkdiv, + unsigned int rate) +{ + struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component); + int ret; + + DECLARE_BITMAP(values, 2); + sigmadsp_reset(adau1701->sigmadsp); + + if (clkdiv != ADAU1707_CLKDIV_UNSET && adau1701->gpio_pll_mode) { + switch (clkdiv) { + case 64: + __assign_bit(0, values, 0); + __assign_bit(1, values, 0); + break; + case 256: + __assign_bit(0, values, 0); + __assign_bit(1, values, 1); + break; + case 384: + __assign_bit(0, values, 1); + __assign_bit(1, values, 0); + break; + case 0: /* fallback */ + case 512: + __assign_bit(0, values, 1); + __assign_bit(1, values, 1); + break; + } + gpiod_set_array_value_cansleep(adau1701->gpio_pll_mode->ndescs, + adau1701->gpio_pll_mode->desc, adau1701->gpio_pll_mode->info, + values); + } + + adau1701->pll_clkdiv = clkdiv; + + if (adau1701->gpio_nreset) { + gpiod_set_value_cansleep(adau1701->gpio_nreset, 0); + /* minimum reset time is 20ns */ + udelay(1); + gpiod_set_value_cansleep(adau1701->gpio_nreset, 1); + /* power-up time may be as long as 85ms */ + mdelay(85); + } + + /* + * Postpone the firmware download to a point in time when we + * know the correct PLL setup + */ + if (clkdiv != ADAU1707_CLKDIV_UNSET) { + ret = sigmadsp_setup(adau1701->sigmadsp, rate); + if (ret) { + dev_warn(component->dev, "Failed to load firmware\n"); + return ret; + } + } + + regmap_write(adau1701->regmap, ADAU1701_DACSET, ADAU1701_DACSET_DACINIT); + regmap_write(adau1701->regmap, ADAU1701_DSPCTRL, ADAU1701_DSPCTRL_CR); + + regcache_mark_dirty(adau1701->regmap); + regcache_sync(adau1701->regmap); + + return 0; +} + +static int adau1701_set_capture_pcm_format(struct snd_soc_component *component, + struct snd_pcm_hw_params *params) +{ + struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component); + unsigned int mask = ADAU1701_SEROCTL_WORD_LEN_MASK; + unsigned int val; + + switch (params_width(params)) { + case 16: + val = ADAU1701_SEROCTL_WORD_LEN_16; + break; + case 20: + val = ADAU1701_SEROCTL_WORD_LEN_20; + break; + case 24: + val = ADAU1701_SEROCTL_WORD_LEN_24; + break; + default: + return -EINVAL; + } + + if (adau1701->dai_fmt == SND_SOC_DAIFMT_RIGHT_J) { + switch (params_width(params)) { + case 16: + val |= ADAU1701_SEROCTL_MSB_DEALY16; + break; + case 20: + val |= ADAU1701_SEROCTL_MSB_DEALY12; + break; + case 24: + val |= ADAU1701_SEROCTL_MSB_DEALY8; + break; + } + mask |= ADAU1701_SEROCTL_MSB_DEALY_MASK; + } + + regmap_update_bits(adau1701->regmap, ADAU1701_SEROCTL, mask, val); + + return 0; +} + +static int adau1701_set_playback_pcm_format(struct snd_soc_component *component, + struct snd_pcm_hw_params *params) +{ + struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component); + unsigned int val; + + if (adau1701->dai_fmt != SND_SOC_DAIFMT_RIGHT_J) + return 0; + + switch (params_width(params)) { + case 16: + val = ADAU1701_SERICTL_RIGHTJ_16; + break; + case 20: + val = ADAU1701_SERICTL_RIGHTJ_20; + break; + case 24: + val = ADAU1701_SERICTL_RIGHTJ_24; + break; + default: + return -EINVAL; + } + + regmap_update_bits(adau1701->regmap, ADAU1701_SERICTL, + ADAU1701_SERICTL_MODE_MASK, val); + + return 0; +} + +static int adau1701_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component); + unsigned int clkdiv = adau1701->sysclk / params_rate(params); + unsigned int val; + int ret; + + /* + * If the mclk/lrclk ratio changes, the chip needs updated PLL + * mode GPIO settings, and a full reset cycle, including a new + * firmware upload. + */ + if (clkdiv != adau1701->pll_clkdiv) { + ret = adau1701_reset(component, clkdiv, params_rate(params)); + if (ret < 0) + return ret; + } + + switch (params_rate(params)) { + case 192000: + val = ADAU1701_DSPCTRL_SR_192; + break; + case 96000: + val = ADAU1701_DSPCTRL_SR_96; + break; + case 48000: + val = ADAU1701_DSPCTRL_SR_48; + break; + default: + return -EINVAL; + } + + regmap_update_bits(adau1701->regmap, ADAU1701_DSPCTRL, + ADAU1701_DSPCTRL_SR_MASK, val); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + return adau1701_set_playback_pcm_format(component, params); + else + return adau1701_set_capture_pcm_format(component, params); +} + +static int adau1701_set_dai_fmt(struct snd_soc_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_component *component = codec_dai->component; + struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component); + unsigned int serictl = 0x00, seroctl = 0x00; + bool invert_lrclk; + + switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { + case SND_SOC_DAIFMT_CBP_CFP: + /* master, 64-bits per sample, 1 frame per sample */ + seroctl |= ADAU1701_SEROCTL_MASTER | ADAU1701_SEROCTL_OBF16 + | ADAU1701_SEROCTL_OLF1024; + break; + case SND_SOC_DAIFMT_CBC_CFC: + break; + default: + return -EINVAL; + } + + /* clock inversion */ + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + invert_lrclk = false; + break; + case SND_SOC_DAIFMT_NB_IF: + invert_lrclk = true; + break; + case SND_SOC_DAIFMT_IB_NF: + invert_lrclk = false; + serictl |= ADAU1701_SERICTL_INV_BCLK; + seroctl |= ADAU1701_SEROCTL_INV_BCLK; + break; + case SND_SOC_DAIFMT_IB_IF: + invert_lrclk = true; + serictl |= ADAU1701_SERICTL_INV_BCLK; + seroctl |= ADAU1701_SEROCTL_INV_BCLK; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + break; + case SND_SOC_DAIFMT_LEFT_J: + serictl |= ADAU1701_SERICTL_LEFTJ; + seroctl |= ADAU1701_SEROCTL_MSB_DEALY0; + invert_lrclk = !invert_lrclk; + break; + case SND_SOC_DAIFMT_RIGHT_J: + serictl |= ADAU1701_SERICTL_RIGHTJ_24; + seroctl |= ADAU1701_SEROCTL_MSB_DEALY8; + invert_lrclk = !invert_lrclk; + break; + default: + return -EINVAL; + } + + if (invert_lrclk) { + seroctl |= ADAU1701_SEROCTL_INV_LRCLK; + serictl |= ADAU1701_SERICTL_INV_LRCLK; + } + + adau1701->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK; + + regmap_write(adau1701->regmap, ADAU1701_SERICTL, serictl); + regmap_update_bits(adau1701->regmap, ADAU1701_SEROCTL, + ~ADAU1701_SEROCTL_WORD_LEN_MASK, seroctl); + + return 0; +} + +static int adau1701_set_bias_level(struct snd_soc_component *component, + enum snd_soc_bias_level level) +{ + unsigned int mask = ADAU1701_AUXNPOW_VBPD | ADAU1701_AUXNPOW_VRPD; + struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component); + + switch (level) { + case SND_SOC_BIAS_ON: + break; + case SND_SOC_BIAS_PREPARE: + break; + case SND_SOC_BIAS_STANDBY: + /* Enable VREF and VREF buffer */ + regmap_update_bits(adau1701->regmap, + ADAU1701_AUXNPOW, mask, 0x00); + break; + case SND_SOC_BIAS_OFF: + /* Disable VREF and VREF buffer */ + regmap_update_bits(adau1701->regmap, + ADAU1701_AUXNPOW, mask, mask); + break; + } + + return 0; +} + +static int adau1701_mute_stream(struct snd_soc_dai *dai, int mute, int direction) +{ + struct snd_soc_component *component = dai->component; + unsigned int mask = ADAU1701_DSPCTRL_DAM; + struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component); + unsigned int val; + + if (mute) + val = 0; + else + val = mask; + + regmap_update_bits(adau1701->regmap, ADAU1701_DSPCTRL, mask, val); + + return 0; +} + +static int adau1701_set_sysclk(struct snd_soc_component *component, int clk_id, + int source, unsigned int freq, int dir) +{ + unsigned int val; + struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component); + + switch (clk_id) { + case ADAU1701_CLK_SRC_OSC: + val = 0x0; + break; + case ADAU1701_CLK_SRC_MCLK: + val = ADAU1701_OSCIPOW_OPD; + break; + default: + return -EINVAL; + } + + regmap_update_bits(adau1701->regmap, ADAU1701_OSCIPOW, + ADAU1701_OSCIPOW_OPD, val); + adau1701->sysclk = freq; + + return 0; +} + +static int adau1701_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct adau1701 *adau1701 = snd_soc_component_get_drvdata(dai->component); + + return sigmadsp_restrict_params(adau1701->sigmadsp, substream); +} + +#define ADAU1701_RATES (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | \ + SNDRV_PCM_RATE_192000) + +#define ADAU1701_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ + SNDRV_PCM_FMTBIT_S24_LE) + +static const struct snd_soc_dai_ops adau1701_dai_ops = { + .set_fmt = adau1701_set_dai_fmt, + .hw_params = adau1701_hw_params, + .mute_stream = adau1701_mute_stream, + .startup = adau1701_startup, + .no_capture_mute = 1, +}; + +static struct snd_soc_dai_driver adau1701_dai = { + .name = "adau1701", + .playback = { + .stream_name = "Playback", + .channels_min = 2, + .channels_max = 8, + .rates = ADAU1701_RATES, + .formats = ADAU1701_FORMATS, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 8, + .rates = ADAU1701_RATES, + .formats = ADAU1701_FORMATS, + }, + .ops = &adau1701_dai_ops, + .symmetric_rate = 1, +}; + +#ifdef CONFIG_OF +static const struct of_device_id adau1701_dt_ids[] = { + { .compatible = "adi,adau1701", }, + { } +}; +MODULE_DEVICE_TABLE(of, adau1701_dt_ids); +#endif + +static int adau1701_probe(struct snd_soc_component *component) +{ + int i, ret; + unsigned int val; + struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component); + + ret = sigmadsp_attach(adau1701->sigmadsp, component); + if (ret) + return ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies), + adau1701->supplies); + if (ret < 0) { + dev_err(component->dev, "Failed to enable regulators: %d\n", ret); + return ret; + } + + /* + * Let the pll_clkdiv variable default to something that won't happen + * at runtime. That way, we can postpone the firmware download from + * adau1701_reset() to a point in time when we know the correct PLL + * mode parameters. + */ + adau1701->pll_clkdiv = ADAU1707_CLKDIV_UNSET; + + /* initalize with pre-configured pll mode settings */ + ret = adau1701_reset(component, adau1701->pll_clkdiv, 0); + if (ret < 0) + goto exit_regulators_disable; + + /* set up pin config */ + val = 0; + for (i = 0; i < 6; i++) + val |= adau1701->pin_config[i] << (i * 4); + + regmap_write(adau1701->regmap, ADAU1701_PINCONF_0, val); + + val = 0; + for (i = 0; i < 6; i++) + val |= adau1701->pin_config[i + 6] << (i * 4); + + regmap_write(adau1701->regmap, ADAU1701_PINCONF_1, val); + + return 0; + +exit_regulators_disable: + + regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies); + return ret; +} + +static void adau1701_remove(struct snd_soc_component *component) +{ + struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component); + + if (adau1701->gpio_nreset) + gpiod_set_value_cansleep(adau1701->gpio_nreset, 0); + + regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies); +} + +#ifdef CONFIG_PM +static int adau1701_suspend(struct snd_soc_component *component) +{ + struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component); + + regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), + adau1701->supplies); + + return 0; +} + +static int adau1701_resume(struct snd_soc_component *component) +{ + struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component); + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies), + adau1701->supplies); + if (ret < 0) { + dev_err(component->dev, "Failed to enable regulators: %d\n", ret); + return ret; + } + + return adau1701_reset(component, adau1701->pll_clkdiv, 0); +} +#else +#define adau1701_resume NULL +#define adau1701_suspend NULL +#endif /* CONFIG_PM */ + +static const struct snd_soc_component_driver adau1701_component_drv = { + .probe = adau1701_probe, + .remove = adau1701_remove, + .resume = adau1701_resume, + .suspend = adau1701_suspend, + .set_bias_level = adau1701_set_bias_level, + .controls = adau1701_controls, + .num_controls = ARRAY_SIZE(adau1701_controls), + .dapm_widgets = adau1701_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(adau1701_dapm_widgets), + .dapm_routes = adau1701_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(adau1701_dapm_routes), + .set_sysclk = adau1701_set_sysclk, + .use_pmdown_time = 1, + .endianness = 1, +}; + +static const struct regmap_config adau1701_regmap = { + .reg_bits = 16, + .val_bits = 32, + .max_register = ADAU1701_MAX_REGISTER, + .cache_type = REGCACHE_RBTREE, + .volatile_reg = adau1701_volatile_reg, + .reg_write = adau1701_reg_write, + .reg_read = adau1701_reg_read, +}; + +static int adau1701_i2c_probe(struct i2c_client *client) +{ + struct adau1701 *adau1701; + struct device *dev = &client->dev; + int ret, i; + + adau1701 = devm_kzalloc(dev, sizeof(*adau1701), GFP_KERNEL); + if (!adau1701) + return -ENOMEM; + + for (i = 0; i < ARRAY_SIZE(supply_names); i++) + adau1701->supplies[i].supply = supply_names[i]; + + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(adau1701->supplies), + adau1701->supplies); + if (ret < 0) { + dev_err(dev, "Failed to get regulators: %d\n", ret); + return ret; + } + + ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies), + adau1701->supplies); + if (ret < 0) { + dev_err(dev, "Failed to enable regulators: %d\n", ret); + return ret; + } + + adau1701->client = client; + adau1701->regmap = devm_regmap_init(dev, NULL, client, + &adau1701_regmap); + if (IS_ERR(adau1701->regmap)) { + ret = PTR_ERR(adau1701->regmap); + goto exit_regulators_disable; + } + + + if (dev->of_node) { + of_property_read_u32(dev->of_node, "adi,pll-clkdiv", + &adau1701->pll_clkdiv); + + of_property_read_u8_array(dev->of_node, "adi,pin-config", + adau1701->pin_config, + ARRAY_SIZE(adau1701->pin_config)); + } + + adau1701->gpio_nreset = devm_gpiod_get_optional(dev, "reset", GPIOD_IN); + + if (IS_ERR(adau1701->gpio_nreset)) { + ret = PTR_ERR(adau1701->gpio_nreset); + goto exit_regulators_disable; + } + + adau1701->gpio_pll_mode = devm_gpiod_get_array_optional(dev, "adi,pll-mode", GPIOD_OUT_LOW); + + if (IS_ERR(adau1701->gpio_pll_mode)) { + ret = PTR_ERR(adau1701->gpio_pll_mode); + goto exit_regulators_disable; + } + + i2c_set_clientdata(client, adau1701); + + adau1701->sigmadsp = devm_sigmadsp_init_i2c(client, + &adau1701_sigmadsp_ops, ADAU1701_FIRMWARE); + if (IS_ERR(adau1701->sigmadsp)) { + ret = PTR_ERR(adau1701->sigmadsp); + goto exit_regulators_disable; + } + + ret = devm_snd_soc_register_component(&client->dev, + &adau1701_component_drv, + &adau1701_dai, 1); + +exit_regulators_disable: + + regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies); + return ret; +} + +static const struct i2c_device_id adau1701_i2c_id[] = { + { "adau1401", 0 }, + { "adau1401a", 0 }, + { "adau1701", 0 }, + { "adau1702", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, adau1701_i2c_id); + +static struct i2c_driver adau1701_i2c_driver = { + .driver = { + .name = "adau1701", + .of_match_table = of_match_ptr(adau1701_dt_ids), + }, + .probe_new = adau1701_i2c_probe, + .id_table = adau1701_i2c_id, +}; + +module_i2c_driver(adau1701_i2c_driver); + +MODULE_DESCRIPTION("ASoC ADAU1701 SigmaDSP driver"); +MODULE_AUTHOR("Cliff Cai "); +MODULE_AUTHOR("Lars-Peter Clausen "); +MODULE_LICENSE("GPL"); -- cgit v1.2.3