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(). ... --- drivers/iio/magnetometer/st_magn_core.c | 654 ++++++++++++++++++++++++++++++++ 1 file changed, 654 insertions(+) create mode 100644 drivers/iio/magnetometer/st_magn_core.c (limited to 'drivers/iio/magnetometer/st_magn_core.c') diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c new file mode 100644 index 000000000..e2fd233b3 --- /dev/null +++ b/drivers/iio/magnetometer/st_magn_core.c @@ -0,0 +1,654 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * STMicroelectronics magnetometers driver + * + * Copyright 2012-2013 STMicroelectronics Inc. + * + * Denis Ciocca + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include "st_magn.h" + +#define ST_MAGN_NUMBER_DATA_CHANNELS 3 + +/* DEFAULT VALUE FOR SENSORS */ +#define ST_MAGN_DEFAULT_OUT_X_H_ADDR 0x03 +#define ST_MAGN_DEFAULT_OUT_Y_H_ADDR 0x07 +#define ST_MAGN_DEFAULT_OUT_Z_H_ADDR 0x05 + +/* FULLSCALE */ +#define ST_MAGN_FS_AVL_1300MG 1300 +#define ST_MAGN_FS_AVL_1900MG 1900 +#define ST_MAGN_FS_AVL_2000MG 2000 +#define ST_MAGN_FS_AVL_2500MG 2500 +#define ST_MAGN_FS_AVL_4000MG 4000 +#define ST_MAGN_FS_AVL_4700MG 4700 +#define ST_MAGN_FS_AVL_5600MG 5600 +#define ST_MAGN_FS_AVL_8000MG 8000 +#define ST_MAGN_FS_AVL_8100MG 8100 +#define ST_MAGN_FS_AVL_12000MG 12000 +#define ST_MAGN_FS_AVL_15000MG 15000 +#define ST_MAGN_FS_AVL_16000MG 16000 + +/* Special L addresses for Sensor 2 */ +#define ST_MAGN_2_OUT_X_L_ADDR 0x28 +#define ST_MAGN_2_OUT_Y_L_ADDR 0x2a +#define ST_MAGN_2_OUT_Z_L_ADDR 0x2c + +/* Special L addresses for sensor 3 */ +#define ST_MAGN_3_OUT_X_L_ADDR 0x68 +#define ST_MAGN_3_OUT_Y_L_ADDR 0x6a +#define ST_MAGN_3_OUT_Z_L_ADDR 0x6c + +/* Special L addresses for sensor 4 */ +#define ST_MAGN_4_OUT_X_L_ADDR 0x08 +#define ST_MAGN_4_OUT_Y_L_ADDR 0x0a +#define ST_MAGN_4_OUT_Z_L_ADDR 0x0c + +static const struct iio_mount_matrix * +st_magn_get_mount_matrix(const struct iio_dev *indio_dev, + const struct iio_chan_spec *chan) +{ + struct st_sensor_data *mdata = iio_priv(indio_dev); + + return &mdata->mount_matrix; +} + +static const struct iio_chan_spec_ext_info st_magn_mount_matrix_ext_info[] = { + IIO_MOUNT_MATRIX(IIO_SHARED_BY_ALL, st_magn_get_mount_matrix), + { } +}; + +static const struct iio_chan_spec st_magn_16bit_channels[] = { + ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_BE, 16, 16, + ST_MAGN_DEFAULT_OUT_X_H_ADDR, + st_magn_mount_matrix_ext_info), + ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_BE, 16, 16, + ST_MAGN_DEFAULT_OUT_Y_H_ADDR, + st_magn_mount_matrix_ext_info), + ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_BE, 16, 16, + ST_MAGN_DEFAULT_OUT_Z_H_ADDR, + st_magn_mount_matrix_ext_info), + IIO_CHAN_SOFT_TIMESTAMP(3) +}; + +static const struct iio_chan_spec st_magn_2_16bit_channels[] = { + ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16, + ST_MAGN_2_OUT_X_L_ADDR, + st_magn_mount_matrix_ext_info), + ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16, + ST_MAGN_2_OUT_Y_L_ADDR, + st_magn_mount_matrix_ext_info), + ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16, + ST_MAGN_2_OUT_Z_L_ADDR, + st_magn_mount_matrix_ext_info), + IIO_CHAN_SOFT_TIMESTAMP(3) +}; + +static const struct iio_chan_spec st_magn_3_16bit_channels[] = { + ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16, + ST_MAGN_3_OUT_X_L_ADDR, + st_magn_mount_matrix_ext_info), + ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16, + ST_MAGN_3_OUT_Y_L_ADDR, + st_magn_mount_matrix_ext_info), + ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16, + ST_MAGN_3_OUT_Z_L_ADDR, + st_magn_mount_matrix_ext_info), + IIO_CHAN_SOFT_TIMESTAMP(3) +}; + +static const struct iio_chan_spec st_magn_4_16bit_channels[] = { + ST_SENSORS_LSM_CHANNELS(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16, + ST_MAGN_4_OUT_X_L_ADDR), + ST_SENSORS_LSM_CHANNELS(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16, + ST_MAGN_4_OUT_Y_L_ADDR), + ST_SENSORS_LSM_CHANNELS(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16, + ST_MAGN_4_OUT_Z_L_ADDR), + IIO_CHAN_SOFT_TIMESTAMP(3) +}; + +static const struct st_sensor_settings st_magn_sensors_settings[] = { + { + .wai = 0, /* This sensor has no valid WhoAmI report 0 */ + .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, + .sensors_supported = { + [0] = LSM303DLH_MAGN_DEV_NAME, + }, + .ch = (struct iio_chan_spec *)st_magn_16bit_channels, + .odr = { + .addr = 0x00, + .mask = 0x1c, + .odr_avl = { + { .hz = 1, .value = 0x00 }, + { .hz = 2, .value = 0x01 }, + { .hz = 3, .value = 0x02 }, + { .hz = 8, .value = 0x03 }, + { .hz = 15, .value = 0x04 }, + { .hz = 30, .value = 0x05 }, + { .hz = 75, .value = 0x06 }, + /* 220 Hz, 0x07 reportedly exist */ + }, + }, + .pw = { + .addr = 0x02, + .mask = 0x03, + .value_on = 0x00, + .value_off = 0x03, + }, + .fs = { + .addr = 0x01, + .mask = 0xe0, + .fs_avl = { + [0] = { + .num = ST_MAGN_FS_AVL_1300MG, + .value = 0x01, + .gain = 1100, + .gain2 = 980, + }, + [1] = { + .num = ST_MAGN_FS_AVL_1900MG, + .value = 0x02, + .gain = 855, + .gain2 = 760, + }, + [2] = { + .num = ST_MAGN_FS_AVL_2500MG, + .value = 0x03, + .gain = 670, + .gain2 = 600, + }, + [3] = { + .num = ST_MAGN_FS_AVL_4000MG, + .value = 0x04, + .gain = 450, + .gain2 = 400, + }, + [4] = { + .num = ST_MAGN_FS_AVL_4700MG, + .value = 0x05, + .gain = 400, + .gain2 = 355, + }, + [5] = { + .num = ST_MAGN_FS_AVL_5600MG, + .value = 0x06, + .gain = 330, + .gain2 = 295, + }, + [6] = { + .num = ST_MAGN_FS_AVL_8100MG, + .value = 0x07, + .gain = 230, + .gain2 = 205, + }, + }, + }, + .multi_read_bit = false, + .bootime = 2, + }, + { + .wai = 0x3c, + .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, + .sensors_supported = { + [0] = LSM303DLHC_MAGN_DEV_NAME, + [1] = LSM303DLM_MAGN_DEV_NAME, + }, + .ch = (struct iio_chan_spec *)st_magn_16bit_channels, + .odr = { + .addr = 0x00, + .mask = 0x1c, + .odr_avl = { + { .hz = 1, .value = 0x00 }, + { .hz = 2, .value = 0x01 }, + { .hz = 3, .value = 0x02 }, + { .hz = 8, .value = 0x03 }, + { .hz = 15, .value = 0x04 }, + { .hz = 30, .value = 0x05 }, + { .hz = 75, .value = 0x06 }, + { .hz = 220, .value = 0x07 }, + }, + }, + .pw = { + .addr = 0x02, + .mask = 0x03, + .value_on = 0x00, + .value_off = 0x03, + }, + .fs = { + .addr = 0x01, + .mask = 0xe0, + .fs_avl = { + [0] = { + .num = ST_MAGN_FS_AVL_1300MG, + .value = 0x01, + .gain = 909, + .gain2 = 1020, + }, + [1] = { + .num = ST_MAGN_FS_AVL_1900MG, + .value = 0x02, + .gain = 1169, + .gain2 = 1315, + }, + [2] = { + .num = ST_MAGN_FS_AVL_2500MG, + .value = 0x03, + .gain = 1492, + .gain2 = 1666, + }, + [3] = { + .num = ST_MAGN_FS_AVL_4000MG, + .value = 0x04, + .gain = 2222, + .gain2 = 2500, + }, + [4] = { + .num = ST_MAGN_FS_AVL_4700MG, + .value = 0x05, + .gain = 2500, + .gain2 = 2816, + }, + [5] = { + .num = ST_MAGN_FS_AVL_5600MG, + .value = 0x06, + .gain = 3030, + .gain2 = 3389, + }, + [6] = { + .num = ST_MAGN_FS_AVL_8100MG, + .value = 0x07, + .gain = 4347, + .gain2 = 4878, + }, + }, + }, + .multi_read_bit = false, + .bootime = 2, + }, + { + .wai = 0x3d, + .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, + .sensors_supported = { + [0] = LIS3MDL_MAGN_DEV_NAME, + [1] = LSM9DS1_MAGN_DEV_NAME, + }, + .ch = (struct iio_chan_spec *)st_magn_2_16bit_channels, + .odr = { + .addr = 0x20, + .mask = 0x1c, + .odr_avl = { + { .hz = 1, .value = 0x00 }, + { .hz = 2, .value = 0x01 }, + { .hz = 3, .value = 0x02 }, + { .hz = 5, .value = 0x03 }, + { .hz = 10, .value = 0x04 }, + { .hz = 20, .value = 0x05 }, + { .hz = 40, .value = 0x06 }, + { .hz = 80, .value = 0x07 }, + }, + }, + .pw = { + .addr = 0x22, + .mask = 0x03, + .value_on = 0x00, + .value_off = 0x03, + }, + .fs = { + .addr = 0x21, + .mask = 0x60, + .fs_avl = { + [0] = { + .num = ST_MAGN_FS_AVL_4000MG, + .value = 0x00, + .gain = 146, + }, + [1] = { + .num = ST_MAGN_FS_AVL_8000MG, + .value = 0x01, + .gain = 292, + }, + [2] = { + .num = ST_MAGN_FS_AVL_12000MG, + .value = 0x02, + .gain = 438, + }, + [3] = { + .num = ST_MAGN_FS_AVL_16000MG, + .value = 0x03, + .gain = 584, + }, + }, + }, + .bdu = { + .addr = 0x24, + .mask = 0x40, + }, + .drdy_irq = { + /* drdy line is routed drdy pin */ + .stat_drdy = { + .addr = ST_SENSORS_DEFAULT_STAT_ADDR, + .mask = 0x07, + }, + }, + .sim = { + .addr = 0x22, + .value = BIT(2), + }, + .multi_read_bit = true, + .bootime = 2, + }, + { + .wai = 0x40, + .wai_addr = 0x4f, + .sensors_supported = { + [0] = LSM303AGR_MAGN_DEV_NAME, + [1] = LIS2MDL_MAGN_DEV_NAME, + [2] = IIS2MDC_MAGN_DEV_NAME, + }, + .ch = (struct iio_chan_spec *)st_magn_3_16bit_channels, + .odr = { + .addr = 0x60, + .mask = 0x0c, + .odr_avl = { + { .hz = 10, .value = 0x00 }, + { .hz = 20, .value = 0x01 }, + { .hz = 50, .value = 0x02 }, + { .hz = 100, .value = 0x03 }, + }, + }, + .pw = { + .addr = 0x60, + .mask = 0x03, + .value_on = 0x00, + .value_off = 0x03, + }, + .fs = { + .fs_avl = { + [0] = { + .num = ST_MAGN_FS_AVL_15000MG, + .gain = 1500, + }, + }, + }, + .bdu = { + .addr = 0x62, + .mask = 0x10, + }, + .drdy_irq = { + .int1 = { + .addr = 0x62, + .mask = 0x01, + }, + .stat_drdy = { + .addr = 0x67, + .mask = 0x07, + }, + }, + .multi_read_bit = false, + .bootime = 2, + }, + { + .wai = 0x49, + .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, + .sensors_supported = { + [0] = LSM9DS0_IMU_DEV_NAME, + }, + .ch = (struct iio_chan_spec *)st_magn_4_16bit_channels, + .odr = { + .addr = 0x24, + .mask = GENMASK(4, 2), + .odr_avl = { + { 3, 0x00, }, + { 6, 0x01, }, + { 12, 0x02, }, + { 25, 0x03, }, + { 50, 0x04, }, + { 100, 0x05, }, + }, + }, + .pw = { + .addr = 0x26, + .mask = GENMASK(1, 0), + .value_on = 0x00, + .value_off = 0x03, + }, + .fs = { + .addr = 0x25, + .mask = GENMASK(6, 5), + .fs_avl = { + [0] = { + .num = ST_MAGN_FS_AVL_2000MG, + .value = 0x00, + .gain = 73, + }, + [1] = { + .num = ST_MAGN_FS_AVL_4000MG, + .value = 0x01, + .gain = 146, + }, + [2] = { + .num = ST_MAGN_FS_AVL_8000MG, + .value = 0x02, + .gain = 292, + }, + [3] = { + .num = ST_MAGN_FS_AVL_12000MG, + .value = 0x03, + .gain = 438, + }, + }, + }, + .bdu = { + .addr = 0x20, + .mask = BIT(3), + }, + .drdy_irq = { + .int1 = { + .addr = 0x22, + .mask = BIT(1), + }, + .int2 = { + .addr = 0x23, + .mask = BIT(2), + }, + .stat_drdy = { + .addr = 0x07, + .mask = GENMASK(2, 0), + }, + }, + .sim = { + .addr = 0x21, + .value = BIT(0), + }, + .multi_read_bit = true, + .bootime = 2, + }, +}; + +/* Default magn DRDY is available on INT2 pin */ +static const struct st_sensors_platform_data default_magn_pdata = { + .drdy_int_pin = 2, +}; + +static int st_magn_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *ch, int *val, + int *val2, long mask) +{ + int err; + struct st_sensor_data *mdata = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_RAW: + err = st_sensors_read_info_raw(indio_dev, ch, val); + if (err < 0) + goto read_error; + + return IIO_VAL_INT; + case IIO_CHAN_INFO_SCALE: + *val = 0; + if ((ch->scan_index == ST_SENSORS_SCAN_Z) && + (mdata->current_fullscale->gain2 != 0)) + *val2 = mdata->current_fullscale->gain2; + else + *val2 = mdata->current_fullscale->gain; + return IIO_VAL_INT_PLUS_MICRO; + case IIO_CHAN_INFO_SAMP_FREQ: + *val = mdata->odr; + return IIO_VAL_INT; + default: + return -EINVAL; + } + +read_error: + return err; +} + +static int st_magn_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, int val, int val2, long mask) +{ + switch (mask) { + case IIO_CHAN_INFO_SCALE: + return st_sensors_set_fullscale_by_gain(indio_dev, val2); + case IIO_CHAN_INFO_SAMP_FREQ: + if (val2) + return -EINVAL; + + return st_sensors_set_odr(indio_dev, val); + default: + return -EINVAL; + } +} + +static ST_SENSORS_DEV_ATTR_SAMP_FREQ_AVAIL(); +static ST_SENSORS_DEV_ATTR_SCALE_AVAIL(in_magn_scale_available); + +static struct attribute *st_magn_attributes[] = { + &iio_dev_attr_sampling_frequency_available.dev_attr.attr, + &iio_dev_attr_in_magn_scale_available.dev_attr.attr, + NULL, +}; + +static const struct attribute_group st_magn_attribute_group = { + .attrs = st_magn_attributes, +}; + +static const struct iio_info magn_info = { + .attrs = &st_magn_attribute_group, + .read_raw = &st_magn_read_raw, + .write_raw = &st_magn_write_raw, + .debugfs_reg_access = &st_sensors_debugfs_reg_access, +}; + +#ifdef CONFIG_IIO_TRIGGER +static const struct iio_trigger_ops st_magn_trigger_ops = { + .set_trigger_state = ST_MAGN_TRIGGER_SET_STATE, + .validate_device = st_sensors_validate_device, +}; +#define ST_MAGN_TRIGGER_OPS (&st_magn_trigger_ops) +#else +#define ST_MAGN_TRIGGER_OPS NULL +#endif + +/* + * st_magn_get_settings() - get sensor settings from device name + * @name: device name buffer reference. + * + * Return: valid reference on success, NULL otherwise. + */ +const struct st_sensor_settings *st_magn_get_settings(const char *name) +{ + int index = st_sensors_get_settings_index(name, + st_magn_sensors_settings, + ARRAY_SIZE(st_magn_sensors_settings)); + if (index < 0) + return NULL; + + return &st_magn_sensors_settings[index]; +} +EXPORT_SYMBOL_NS(st_magn_get_settings, IIO_ST_SENSORS); + +int st_magn_common_probe(struct iio_dev *indio_dev) +{ + struct st_sensor_data *mdata = iio_priv(indio_dev); + struct device *parent = indio_dev->dev.parent; + struct st_sensors_platform_data *pdata = dev_get_platdata(parent); + int err; + + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->info = &magn_info; + + err = st_sensors_verify_id(indio_dev); + if (err < 0) + return err; + + mdata->num_data_channels = ST_MAGN_NUMBER_DATA_CHANNELS; + indio_dev->channels = mdata->sensor_settings->ch; + indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS; + + err = iio_read_mount_matrix(parent, &mdata->mount_matrix); + if (err) + return err; + + mdata->current_fullscale = &mdata->sensor_settings->fs.fs_avl[0]; + mdata->odr = mdata->sensor_settings->odr.odr_avl[0].hz; + + if (!pdata) + pdata = (struct st_sensors_platform_data *)&default_magn_pdata; + + err = st_sensors_init_sensor(indio_dev, pdata); + if (err < 0) + return err; + + err = st_magn_allocate_ring(indio_dev); + if (err < 0) + return err; + + if (mdata->irq > 0) { + err = st_sensors_allocate_trigger(indio_dev, + ST_MAGN_TRIGGER_OPS); + if (err < 0) + return err; + } + + return devm_iio_device_register(parent, indio_dev); +} +EXPORT_SYMBOL_NS(st_magn_common_probe, IIO_ST_SENSORS); + +MODULE_AUTHOR("Denis Ciocca "); +MODULE_DESCRIPTION("STMicroelectronics magnetometers driver"); +MODULE_LICENSE("GPL v2"); +MODULE_IMPORT_NS(IIO_ST_SENSORS); -- cgit v1.2.3