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528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 | /* * STMicroelectronics accelerometers driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> * * Licensed under the GPL-2. */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/errno.h> #include <linux/types.h> #include <linux/mutex.h> #include <linux/interrupt.h> #include <linux/i2c.h> #include <linux/gpio.h> #include <linux/irq.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> #include <linux/iio/trigger.h> #include <linux/iio/buffer.h> #include <linux/iio/common/st_sensors.h> #include "st_accel.h" #define ST_ACCEL_NUMBER_DATA_CHANNELS 3 /* DEFAULT VALUE FOR SENSORS */ #define ST_ACCEL_DEFAULT_OUT_X_L_ADDR 0x28 #define ST_ACCEL_DEFAULT_OUT_Y_L_ADDR 0x2a #define ST_ACCEL_DEFAULT_OUT_Z_L_ADDR 0x2c /* FULLSCALE */ #define ST_ACCEL_FS_AVL_2G 2 #define ST_ACCEL_FS_AVL_4G 4 #define ST_ACCEL_FS_AVL_6G 6 #define ST_ACCEL_FS_AVL_8G 8 #define ST_ACCEL_FS_AVL_16G 16 #define ST_ACCEL_FS_AVL_100G 100 #define ST_ACCEL_FS_AVL_200G 200 #define ST_ACCEL_FS_AVL_400G 400 /* CUSTOM VALUES FOR SENSOR 1 */ #define ST_ACCEL_1_WAI_EXP 0x33 #define ST_ACCEL_1_ODR_ADDR 0x20 #define ST_ACCEL_1_ODR_MASK 0xf0 #define ST_ACCEL_1_ODR_AVL_1HZ_VAL 0x01 #define ST_ACCEL_1_ODR_AVL_10HZ_VAL 0x02 #define ST_ACCEL_1_ODR_AVL_25HZ_VAL 0x03 #define ST_ACCEL_1_ODR_AVL_50HZ_VAL 0x04 #define ST_ACCEL_1_ODR_AVL_100HZ_VAL 0x05 #define ST_ACCEL_1_ODR_AVL_200HZ_VAL 0x06 #define ST_ACCEL_1_ODR_AVL_400HZ_VAL 0x07 #define ST_ACCEL_1_ODR_AVL_1600HZ_VAL 0x08 #define ST_ACCEL_1_FS_ADDR 0x23 #define ST_ACCEL_1_FS_MASK 0x30 #define ST_ACCEL_1_FS_AVL_2_VAL 0x00 #define ST_ACCEL_1_FS_AVL_4_VAL 0x01 #define ST_ACCEL_1_FS_AVL_8_VAL 0x02 #define ST_ACCEL_1_FS_AVL_16_VAL 0x03 #define ST_ACCEL_1_FS_AVL_2_GAIN IIO_G_TO_M_S_2(1000) #define ST_ACCEL_1_FS_AVL_4_GAIN IIO_G_TO_M_S_2(2000) #define ST_ACCEL_1_FS_AVL_8_GAIN IIO_G_TO_M_S_2(4000) #define ST_ACCEL_1_FS_AVL_16_GAIN IIO_G_TO_M_S_2(12000) #define ST_ACCEL_1_BDU_ADDR 0x23 #define ST_ACCEL_1_BDU_MASK 0x80 #define ST_ACCEL_1_DRDY_IRQ_ADDR 0x22 #define ST_ACCEL_1_DRDY_IRQ_INT1_MASK 0x10 #define ST_ACCEL_1_DRDY_IRQ_INT2_MASK 0x08 #define ST_ACCEL_1_IHL_IRQ_ADDR 0x25 #define ST_ACCEL_1_IHL_IRQ_MASK 0x02 #define ST_ACCEL_1_MULTIREAD_BIT true /* CUSTOM VALUES FOR SENSOR 2 */ #define ST_ACCEL_2_WAI_EXP 0x32 #define ST_ACCEL_2_ODR_ADDR 0x20 #define ST_ACCEL_2_ODR_MASK 0x18 #define ST_ACCEL_2_ODR_AVL_50HZ_VAL 0x00 #define ST_ACCEL_2_ODR_AVL_100HZ_VAL 0x01 #define ST_ACCEL_2_ODR_AVL_400HZ_VAL 0x02 #define ST_ACCEL_2_ODR_AVL_1000HZ_VAL 0x03 #define ST_ACCEL_2_PW_ADDR 0x20 #define ST_ACCEL_2_PW_MASK 0xe0 #define ST_ACCEL_2_FS_ADDR 0x23 #define ST_ACCEL_2_FS_MASK 0x30 #define ST_ACCEL_2_FS_AVL_2_VAL 0X00 #define ST_ACCEL_2_FS_AVL_4_VAL 0X01 #define ST_ACCEL_2_FS_AVL_8_VAL 0x03 #define ST_ACCEL_2_FS_AVL_2_GAIN IIO_G_TO_M_S_2(1000) #define ST_ACCEL_2_FS_AVL_4_GAIN IIO_G_TO_M_S_2(2000) #define ST_ACCEL_2_FS_AVL_8_GAIN IIO_G_TO_M_S_2(3900) #define ST_ACCEL_2_BDU_ADDR 0x23 #define ST_ACCEL_2_BDU_MASK 0x80 #define ST_ACCEL_2_DRDY_IRQ_ADDR 0x22 #define ST_ACCEL_2_DRDY_IRQ_INT1_MASK 0x02 #define ST_ACCEL_2_DRDY_IRQ_INT2_MASK 0x10 #define ST_ACCEL_2_IHL_IRQ_ADDR 0x22 #define ST_ACCEL_2_IHL_IRQ_MASK 0x80 #define ST_ACCEL_2_OD_IRQ_ADDR 0x22 #define ST_ACCEL_2_OD_IRQ_MASK 0x40 #define ST_ACCEL_2_MULTIREAD_BIT true /* CUSTOM VALUES FOR SENSOR 3 */ #define ST_ACCEL_3_WAI_EXP 0x40 #define ST_ACCEL_3_ODR_ADDR 0x20 #define ST_ACCEL_3_ODR_MASK 0xf0 #define ST_ACCEL_3_ODR_AVL_3HZ_VAL 0x01 #define ST_ACCEL_3_ODR_AVL_6HZ_VAL 0x02 #define ST_ACCEL_3_ODR_AVL_12HZ_VAL 0x03 #define ST_ACCEL_3_ODR_AVL_25HZ_VAL 0x04 #define ST_ACCEL_3_ODR_AVL_50HZ_VAL 0x05 #define ST_ACCEL_3_ODR_AVL_100HZ_VAL 0x06 #define ST_ACCEL_3_ODR_AVL_200HZ_VAL 0x07 #define ST_ACCEL_3_ODR_AVL_400HZ_VAL 0x08 #define ST_ACCEL_3_ODR_AVL_800HZ_VAL 0x09 #define ST_ACCEL_3_ODR_AVL_1600HZ_VAL 0x0a #define ST_ACCEL_3_FS_ADDR 0x24 #define ST_ACCEL_3_FS_MASK 0x38 #define ST_ACCEL_3_FS_AVL_2_VAL 0X00 #define ST_ACCEL_3_FS_AVL_4_VAL 0X01 #define ST_ACCEL_3_FS_AVL_6_VAL 0x02 #define ST_ACCEL_3_FS_AVL_8_VAL 0x03 #define ST_ACCEL_3_FS_AVL_16_VAL 0x04 #define ST_ACCEL_3_FS_AVL_2_GAIN IIO_G_TO_M_S_2(61) #define ST_ACCEL_3_FS_AVL_4_GAIN IIO_G_TO_M_S_2(122) #define ST_ACCEL_3_FS_AVL_6_GAIN IIO_G_TO_M_S_2(183) #define ST_ACCEL_3_FS_AVL_8_GAIN IIO_G_TO_M_S_2(244) #define ST_ACCEL_3_FS_AVL_16_GAIN IIO_G_TO_M_S_2(732) #define ST_ACCEL_3_BDU_ADDR 0x20 #define ST_ACCEL_3_BDU_MASK 0x08 #define ST_ACCEL_3_DRDY_IRQ_ADDR 0x23 #define ST_ACCEL_3_DRDY_IRQ_INT1_MASK 0x80 #define ST_ACCEL_3_DRDY_IRQ_INT2_MASK 0x00 #define ST_ACCEL_3_IHL_IRQ_ADDR 0x23 #define ST_ACCEL_3_IHL_IRQ_MASK 0x40 #define ST_ACCEL_3_IG1_EN_ADDR 0x23 #define ST_ACCEL_3_IG1_EN_MASK 0x08 #define ST_ACCEL_3_MULTIREAD_BIT false /* CUSTOM VALUES FOR SENSOR 4 */ #define ST_ACCEL_4_WAI_EXP 0x3a #define ST_ACCEL_4_ODR_ADDR 0x20 #define ST_ACCEL_4_ODR_MASK 0x30 /* DF1 and DF0 */ #define ST_ACCEL_4_ODR_AVL_40HZ_VAL 0x00 #define ST_ACCEL_4_ODR_AVL_160HZ_VAL 0x01 #define ST_ACCEL_4_ODR_AVL_640HZ_VAL 0x02 #define ST_ACCEL_4_ODR_AVL_2560HZ_VAL 0x03 #define ST_ACCEL_4_PW_ADDR 0x20 #define ST_ACCEL_4_PW_MASK 0xc0 #define ST_ACCEL_4_FS_ADDR 0x21 #define ST_ACCEL_4_FS_MASK 0x80 #define ST_ACCEL_4_FS_AVL_2_VAL 0X00 #define ST_ACCEL_4_FS_AVL_6_VAL 0X01 #define ST_ACCEL_4_FS_AVL_2_GAIN IIO_G_TO_M_S_2(1000) #define ST_ACCEL_4_FS_AVL_6_GAIN IIO_G_TO_M_S_2(3000) #define ST_ACCEL_4_BDU_ADDR 0x21 #define ST_ACCEL_4_BDU_MASK 0x40 #define ST_ACCEL_4_DRDY_IRQ_ADDR 0x21 #define ST_ACCEL_4_DRDY_IRQ_INT1_MASK 0x04 #define ST_ACCEL_4_MULTIREAD_BIT true /* CUSTOM VALUES FOR SENSOR 5 */ #define ST_ACCEL_5_WAI_EXP 0x3b #define ST_ACCEL_5_ODR_ADDR 0x20 #define ST_ACCEL_5_ODR_MASK 0x80 #define ST_ACCEL_5_ODR_AVL_100HZ_VAL 0x00 #define ST_ACCEL_5_ODR_AVL_400HZ_VAL 0x01 #define ST_ACCEL_5_PW_ADDR 0x20 #define ST_ACCEL_5_PW_MASK 0x40 #define ST_ACCEL_5_FS_ADDR 0x20 #define ST_ACCEL_5_FS_MASK 0x20 #define ST_ACCEL_5_FS_AVL_2_VAL 0X00 #define ST_ACCEL_5_FS_AVL_8_VAL 0X01 /* TODO: check these resulting gain settings, these are not in the datsheet */ #define ST_ACCEL_5_FS_AVL_2_GAIN IIO_G_TO_M_S_2(18000) #define ST_ACCEL_5_FS_AVL_8_GAIN IIO_G_TO_M_S_2(72000) #define ST_ACCEL_5_DRDY_IRQ_ADDR 0x22 #define ST_ACCEL_5_DRDY_IRQ_INT1_MASK 0x04 #define ST_ACCEL_5_DRDY_IRQ_INT2_MASK 0x20 #define ST_ACCEL_5_IHL_IRQ_ADDR 0x22 #define ST_ACCEL_5_IHL_IRQ_MASK 0x80 #define ST_ACCEL_5_OD_IRQ_ADDR 0x22 #define ST_ACCEL_5_OD_IRQ_MASK 0x40 #define ST_ACCEL_5_IG1_EN_ADDR 0x21 #define ST_ACCEL_5_IG1_EN_MASK 0x08 #define ST_ACCEL_5_MULTIREAD_BIT false /* CUSTOM VALUES FOR SENSOR 6 */ #define ST_ACCEL_6_WAI_EXP 0x32 #define ST_ACCEL_6_ODR_ADDR 0x20 #define ST_ACCEL_6_ODR_MASK 0x18 #define ST_ACCEL_6_ODR_AVL_50HZ_VAL 0x00 #define ST_ACCEL_6_ODR_AVL_100HZ_VAL 0x01 #define ST_ACCEL_6_ODR_AVL_400HZ_VAL 0x02 #define ST_ACCEL_6_ODR_AVL_1000HZ_VAL 0x03 #define ST_ACCEL_6_PW_ADDR 0x20 #define ST_ACCEL_6_PW_MASK 0x20 #define ST_ACCEL_6_FS_ADDR 0x23 #define ST_ACCEL_6_FS_MASK 0x30 #define ST_ACCEL_6_FS_AVL_100_VAL 0x00 #define ST_ACCEL_6_FS_AVL_200_VAL 0x01 #define ST_ACCEL_6_FS_AVL_400_VAL 0x03 #define ST_ACCEL_6_FS_AVL_100_GAIN IIO_G_TO_M_S_2(49000) #define ST_ACCEL_6_FS_AVL_200_GAIN IIO_G_TO_M_S_2(98000) #define ST_ACCEL_6_FS_AVL_400_GAIN IIO_G_TO_M_S_2(195000) #define ST_ACCEL_6_BDU_ADDR 0x23 #define ST_ACCEL_6_BDU_MASK 0x80 #define ST_ACCEL_6_DRDY_IRQ_ADDR 0x22 #define ST_ACCEL_6_DRDY_IRQ_INT1_MASK 0x02 #define ST_ACCEL_6_DRDY_IRQ_INT2_MASK 0x10 #define ST_ACCEL_6_IHL_IRQ_ADDR 0x22 #define ST_ACCEL_6_IHL_IRQ_MASK 0x80 #define ST_ACCEL_6_MULTIREAD_BIT true /* CUSTOM VALUES FOR SENSOR 7 */ #define ST_ACCEL_7_ODR_ADDR 0x20 #define ST_ACCEL_7_ODR_MASK 0x30 #define ST_ACCEL_7_ODR_AVL_280HZ_VAL 0x00 #define ST_ACCEL_7_ODR_AVL_560HZ_VAL 0x01 #define ST_ACCEL_7_ODR_AVL_1120HZ_VAL 0x02 #define ST_ACCEL_7_ODR_AVL_4480HZ_VAL 0x03 #define ST_ACCEL_7_PW_ADDR 0x20 #define ST_ACCEL_7_PW_MASK 0xc0 #define ST_ACCEL_7_FS_AVL_2_GAIN IIO_G_TO_M_S_2(488) #define ST_ACCEL_7_BDU_ADDR 0x21 #define ST_ACCEL_7_BDU_MASK 0x40 #define ST_ACCEL_7_DRDY_IRQ_ADDR 0x21 #define ST_ACCEL_7_DRDY_IRQ_INT1_MASK 0x04 #define ST_ACCEL_7_MULTIREAD_BIT false static const struct iio_chan_spec st_accel_8bit_channels[] = { ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 8, 8, ST_ACCEL_DEFAULT_OUT_X_L_ADDR+1), ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 8, 8, ST_ACCEL_DEFAULT_OUT_Y_L_ADDR+1), ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 8, 8, ST_ACCEL_DEFAULT_OUT_Z_L_ADDR+1), IIO_CHAN_SOFT_TIMESTAMP(3) }; static const struct iio_chan_spec st_accel_12bit_channels[] = { ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 12, 16, ST_ACCEL_DEFAULT_OUT_X_L_ADDR), ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 12, 16, ST_ACCEL_DEFAULT_OUT_Y_L_ADDR), ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 12, 16, ST_ACCEL_DEFAULT_OUT_Z_L_ADDR), IIO_CHAN_SOFT_TIMESTAMP(3) }; static const struct iio_chan_spec st_accel_16bit_channels[] = { ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16, ST_ACCEL_DEFAULT_OUT_X_L_ADDR), ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16, ST_ACCEL_DEFAULT_OUT_Y_L_ADDR), ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16, ST_ACCEL_DEFAULT_OUT_Z_L_ADDR), IIO_CHAN_SOFT_TIMESTAMP(3) }; static const struct st_sensor_settings st_accel_sensors_settings[] = { { .wai = ST_ACCEL_1_WAI_EXP, .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, .sensors_supported = { [0] = LIS3DH_ACCEL_DEV_NAME, [1] = LSM303DLHC_ACCEL_DEV_NAME, [2] = LSM330D_ACCEL_DEV_NAME, [3] = LSM330DL_ACCEL_DEV_NAME, [4] = LSM330DLC_ACCEL_DEV_NAME, [5] = LSM303AGR_ACCEL_DEV_NAME, [6] = LIS2DH12_ACCEL_DEV_NAME, }, .ch = (struct iio_chan_spec *)st_accel_12bit_channels, .odr = { .addr = ST_ACCEL_1_ODR_ADDR, .mask = ST_ACCEL_1_ODR_MASK, .odr_avl = { { 1, ST_ACCEL_1_ODR_AVL_1HZ_VAL, }, { 10, ST_ACCEL_1_ODR_AVL_10HZ_VAL, }, { 25, ST_ACCEL_1_ODR_AVL_25HZ_VAL, }, { 50, ST_ACCEL_1_ODR_AVL_50HZ_VAL, }, { 100, ST_ACCEL_1_ODR_AVL_100HZ_VAL, }, { 200, ST_ACCEL_1_ODR_AVL_200HZ_VAL, }, { 400, ST_ACCEL_1_ODR_AVL_400HZ_VAL, }, { 1600, ST_ACCEL_1_ODR_AVL_1600HZ_VAL, }, }, }, .pw = { .addr = ST_ACCEL_1_ODR_ADDR, .mask = ST_ACCEL_1_ODR_MASK, .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, }, .enable_axis = { .addr = ST_SENSORS_DEFAULT_AXIS_ADDR, .mask = ST_SENSORS_DEFAULT_AXIS_MASK, }, .fs = { .addr = ST_ACCEL_1_FS_ADDR, .mask = ST_ACCEL_1_FS_MASK, .fs_avl = { [0] = { .num = ST_ACCEL_FS_AVL_2G, .value = ST_ACCEL_1_FS_AVL_2_VAL, .gain = ST_ACCEL_1_FS_AVL_2_GAIN, }, [1] = { .num = ST_ACCEL_FS_AVL_4G, .value = ST_ACCEL_1_FS_AVL_4_VAL, .gain = ST_ACCEL_1_FS_AVL_4_GAIN, }, [2] = { .num = ST_ACCEL_FS_AVL_8G, .value = ST_ACCEL_1_FS_AVL_8_VAL, .gain = ST_ACCEL_1_FS_AVL_8_GAIN, }, [3] = { .num = ST_ACCEL_FS_AVL_16G, .value = ST_ACCEL_1_FS_AVL_16_VAL, .gain = ST_ACCEL_1_FS_AVL_16_GAIN, }, }, }, .bdu = { .addr = ST_ACCEL_1_BDU_ADDR, .mask = ST_ACCEL_1_BDU_MASK, }, /* * Data Alignment Setting - needs to be set to get * left-justified data like all other sensors. */ .das = { .addr = 0x21, .mask = 0x01, }, .drdy_irq = { .addr = ST_ACCEL_1_DRDY_IRQ_ADDR, .mask_int1 = ST_ACCEL_1_DRDY_IRQ_INT1_MASK, .mask_int2 = ST_ACCEL_1_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_ACCEL_1_IHL_IRQ_ADDR, .mask_ihl = ST_ACCEL_1_IHL_IRQ_MASK, .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_ACCEL_1_MULTIREAD_BIT, .bootime = 2, }, { .wai = ST_ACCEL_2_WAI_EXP, .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, .sensors_supported = { [0] = LIS331DLH_ACCEL_DEV_NAME, [1] = LSM303DL_ACCEL_DEV_NAME, [2] = LSM303DLH_ACCEL_DEV_NAME, [3] = LSM303DLM_ACCEL_DEV_NAME, }, .ch = (struct iio_chan_spec *)st_accel_12bit_channels, .odr = { .addr = ST_ACCEL_2_ODR_ADDR, .mask = ST_ACCEL_2_ODR_MASK, .odr_avl = { { 50, ST_ACCEL_2_ODR_AVL_50HZ_VAL, }, { 100, ST_ACCEL_2_ODR_AVL_100HZ_VAL, }, { 400, ST_ACCEL_2_ODR_AVL_400HZ_VAL, }, { 1000, ST_ACCEL_2_ODR_AVL_1000HZ_VAL, }, }, }, .pw = { .addr = ST_ACCEL_2_PW_ADDR, .mask = ST_ACCEL_2_PW_MASK, .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE, .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, }, .enable_axis = { .addr = ST_SENSORS_DEFAULT_AXIS_ADDR, .mask = ST_SENSORS_DEFAULT_AXIS_MASK, }, .fs = { .addr = ST_ACCEL_2_FS_ADDR, .mask = ST_ACCEL_2_FS_MASK, .fs_avl = { [0] = { .num = ST_ACCEL_FS_AVL_2G, .value = ST_ACCEL_2_FS_AVL_2_VAL, .gain = ST_ACCEL_2_FS_AVL_2_GAIN, }, [1] = { .num = ST_ACCEL_FS_AVL_4G, .value = ST_ACCEL_2_FS_AVL_4_VAL, .gain = ST_ACCEL_2_FS_AVL_4_GAIN, }, [2] = { .num = ST_ACCEL_FS_AVL_8G, .value = ST_ACCEL_2_FS_AVL_8_VAL, .gain = ST_ACCEL_2_FS_AVL_8_GAIN, }, }, }, .bdu = { .addr = ST_ACCEL_2_BDU_ADDR, .mask = ST_ACCEL_2_BDU_MASK, }, .drdy_irq = { .addr = ST_ACCEL_2_DRDY_IRQ_ADDR, .mask_int1 = ST_ACCEL_2_DRDY_IRQ_INT1_MASK, .mask_int2 = ST_ACCEL_2_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_ACCEL_2_IHL_IRQ_ADDR, .mask_ihl = ST_ACCEL_2_IHL_IRQ_MASK, .addr_od = ST_ACCEL_2_OD_IRQ_ADDR, .mask_od = ST_ACCEL_2_OD_IRQ_MASK, .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_ACCEL_2_MULTIREAD_BIT, .bootime = 2, }, { .wai = ST_ACCEL_3_WAI_EXP, .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, .sensors_supported = { [0] = LSM330_ACCEL_DEV_NAME, }, .ch = (struct iio_chan_spec *)st_accel_16bit_channels, .odr = { .addr = ST_ACCEL_3_ODR_ADDR, .mask = ST_ACCEL_3_ODR_MASK, .odr_avl = { { 3, ST_ACCEL_3_ODR_AVL_3HZ_VAL }, { 6, ST_ACCEL_3_ODR_AVL_6HZ_VAL, }, { 12, ST_ACCEL_3_ODR_AVL_12HZ_VAL, }, { 25, ST_ACCEL_3_ODR_AVL_25HZ_VAL, }, { 50, ST_ACCEL_3_ODR_AVL_50HZ_VAL, }, { 100, ST_ACCEL_3_ODR_AVL_100HZ_VAL, }, { 200, ST_ACCEL_3_ODR_AVL_200HZ_VAL, }, { 400, ST_ACCEL_3_ODR_AVL_400HZ_VAL, }, { 800, ST_ACCEL_3_ODR_AVL_800HZ_VAL, }, { 1600, ST_ACCEL_3_ODR_AVL_1600HZ_VAL, }, }, }, .pw = { .addr = ST_ACCEL_3_ODR_ADDR, .mask = ST_ACCEL_3_ODR_MASK, .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, }, .enable_axis = { .addr = ST_SENSORS_DEFAULT_AXIS_ADDR, .mask = ST_SENSORS_DEFAULT_AXIS_MASK, }, .fs = { .addr = ST_ACCEL_3_FS_ADDR, .mask = ST_ACCEL_3_FS_MASK, .fs_avl = { [0] = { .num = ST_ACCEL_FS_AVL_2G, .value = ST_ACCEL_3_FS_AVL_2_VAL, .gain = ST_ACCEL_3_FS_AVL_2_GAIN, }, [1] = { .num = ST_ACCEL_FS_AVL_4G, .value = ST_ACCEL_3_FS_AVL_4_VAL, .gain = ST_ACCEL_3_FS_AVL_4_GAIN, }, [2] = { .num = ST_ACCEL_FS_AVL_6G, .value = ST_ACCEL_3_FS_AVL_6_VAL, .gain = ST_ACCEL_3_FS_AVL_6_GAIN, }, [3] = { .num = ST_ACCEL_FS_AVL_8G, .value = ST_ACCEL_3_FS_AVL_8_VAL, .gain = ST_ACCEL_3_FS_AVL_8_GAIN, }, [4] = { .num = ST_ACCEL_FS_AVL_16G, .value = ST_ACCEL_3_FS_AVL_16_VAL, .gain = ST_ACCEL_3_FS_AVL_16_GAIN, }, }, }, .bdu = { .addr = ST_ACCEL_3_BDU_ADDR, .mask = ST_ACCEL_3_BDU_MASK, }, .drdy_irq = { .addr = ST_ACCEL_3_DRDY_IRQ_ADDR, .mask_int1 = ST_ACCEL_3_DRDY_IRQ_INT1_MASK, .mask_int2 = ST_ACCEL_3_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_ACCEL_3_IHL_IRQ_ADDR, .mask_ihl = ST_ACCEL_3_IHL_IRQ_MASK, .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, .ig1 = { .en_addr = ST_ACCEL_3_IG1_EN_ADDR, .en_mask = ST_ACCEL_3_IG1_EN_MASK, }, }, .multi_read_bit = ST_ACCEL_3_MULTIREAD_BIT, .bootime = 2, }, { .wai = ST_ACCEL_4_WAI_EXP, .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, .sensors_supported = { [0] = LIS3LV02DL_ACCEL_DEV_NAME, }, .ch = (struct iio_chan_spec *)st_accel_12bit_channels, .odr = { .addr = ST_ACCEL_4_ODR_ADDR, .mask = ST_ACCEL_4_ODR_MASK, .odr_avl = { { 40, ST_ACCEL_4_ODR_AVL_40HZ_VAL }, { 160, ST_ACCEL_4_ODR_AVL_160HZ_VAL, }, { 640, ST_ACCEL_4_ODR_AVL_640HZ_VAL, }, { 2560, ST_ACCEL_4_ODR_AVL_2560HZ_VAL, }, }, }, .pw = { .addr = ST_ACCEL_4_PW_ADDR, .mask = ST_ACCEL_4_PW_MASK, .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE, .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, }, .enable_axis = { .addr = ST_SENSORS_DEFAULT_AXIS_ADDR, .mask = ST_SENSORS_DEFAULT_AXIS_MASK, }, .fs = { .addr = ST_ACCEL_4_FS_ADDR, .mask = ST_ACCEL_4_FS_MASK, .fs_avl = { [0] = { .num = ST_ACCEL_FS_AVL_2G, .value = ST_ACCEL_4_FS_AVL_2_VAL, .gain = ST_ACCEL_4_FS_AVL_2_GAIN, }, [1] = { .num = ST_ACCEL_FS_AVL_6G, .value = ST_ACCEL_4_FS_AVL_6_VAL, .gain = ST_ACCEL_4_FS_AVL_6_GAIN, }, }, }, .bdu = { .addr = ST_ACCEL_4_BDU_ADDR, .mask = ST_ACCEL_4_BDU_MASK, }, .drdy_irq = { .addr = ST_ACCEL_4_DRDY_IRQ_ADDR, .mask_int1 = ST_ACCEL_4_DRDY_IRQ_INT1_MASK, .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_ACCEL_4_MULTIREAD_BIT, .bootime = 2, /* guess */ }, { .wai = ST_ACCEL_5_WAI_EXP, .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, .sensors_supported = { [0] = LIS331DL_ACCEL_DEV_NAME, }, .ch = (struct iio_chan_spec *)st_accel_8bit_channels, .odr = { .addr = ST_ACCEL_5_ODR_ADDR, .mask = ST_ACCEL_5_ODR_MASK, .odr_avl = { { 100, ST_ACCEL_5_ODR_AVL_100HZ_VAL }, { 400, ST_ACCEL_5_ODR_AVL_400HZ_VAL, }, }, }, .pw = { .addr = ST_ACCEL_5_PW_ADDR, .mask = ST_ACCEL_5_PW_MASK, .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE, .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, }, .enable_axis = { .addr = ST_SENSORS_DEFAULT_AXIS_ADDR, .mask = ST_SENSORS_DEFAULT_AXIS_MASK, }, .fs = { .addr = ST_ACCEL_5_FS_ADDR, .mask = ST_ACCEL_5_FS_MASK, .fs_avl = { [0] = { .num = ST_ACCEL_FS_AVL_2G, .value = ST_ACCEL_5_FS_AVL_2_VAL, .gain = ST_ACCEL_5_FS_AVL_2_GAIN, }, [1] = { .num = ST_ACCEL_FS_AVL_8G, .value = ST_ACCEL_5_FS_AVL_8_VAL, .gain = ST_ACCEL_5_FS_AVL_8_GAIN, }, }, }, .drdy_irq = { .addr = ST_ACCEL_5_DRDY_IRQ_ADDR, .mask_int1 = ST_ACCEL_5_DRDY_IRQ_INT1_MASK, .mask_int2 = ST_ACCEL_5_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_ACCEL_5_IHL_IRQ_ADDR, .mask_ihl = ST_ACCEL_5_IHL_IRQ_MASK, .addr_od = ST_ACCEL_5_OD_IRQ_ADDR, .mask_od = ST_ACCEL_5_OD_IRQ_MASK, .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_ACCEL_5_MULTIREAD_BIT, .bootime = 2, /* guess */ }, { .wai = ST_ACCEL_6_WAI_EXP, .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, .sensors_supported = { [0] = H3LIS331DL_DRIVER_NAME, }, .ch = (struct iio_chan_spec *)st_accel_12bit_channels, .odr = { .addr = ST_ACCEL_6_ODR_ADDR, .mask = ST_ACCEL_6_ODR_MASK, .odr_avl = { { 50, ST_ACCEL_6_ODR_AVL_50HZ_VAL }, { 100, ST_ACCEL_6_ODR_AVL_100HZ_VAL, }, { 400, ST_ACCEL_6_ODR_AVL_400HZ_VAL, }, { 1000, ST_ACCEL_6_ODR_AVL_1000HZ_VAL, }, }, }, .pw = { .addr = ST_ACCEL_6_PW_ADDR, .mask = ST_ACCEL_6_PW_MASK, .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE, .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, }, .enable_axis = { .addr = ST_SENSORS_DEFAULT_AXIS_ADDR, .mask = ST_SENSORS_DEFAULT_AXIS_MASK, }, .fs = { .addr = ST_ACCEL_6_FS_ADDR, .mask = ST_ACCEL_6_FS_MASK, .fs_avl = { [0] = { .num = ST_ACCEL_FS_AVL_100G, .value = ST_ACCEL_6_FS_AVL_100_VAL, .gain = ST_ACCEL_6_FS_AVL_100_GAIN, }, [1] = { .num = ST_ACCEL_FS_AVL_200G, .value = ST_ACCEL_6_FS_AVL_200_VAL, .gain = ST_ACCEL_6_FS_AVL_200_GAIN, }, [2] = { .num = ST_ACCEL_FS_AVL_400G, .value = ST_ACCEL_6_FS_AVL_400_VAL, .gain = ST_ACCEL_6_FS_AVL_400_GAIN, }, }, }, .bdu = { .addr = ST_ACCEL_6_BDU_ADDR, .mask = ST_ACCEL_6_BDU_MASK, }, .drdy_irq = { .addr = ST_ACCEL_6_DRDY_IRQ_ADDR, .mask_int1 = ST_ACCEL_6_DRDY_IRQ_INT1_MASK, .mask_int2 = ST_ACCEL_6_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_ACCEL_6_IHL_IRQ_ADDR, .mask_ihl = ST_ACCEL_6_IHL_IRQ_MASK, }, .multi_read_bit = ST_ACCEL_6_MULTIREAD_BIT, .bootime = 2, }, { /* No WAI register present */ .sensors_supported = { [0] = LIS3L02DQ_ACCEL_DEV_NAME, }, .ch = (struct iio_chan_spec *)st_accel_12bit_channels, .odr = { .addr = ST_ACCEL_7_ODR_ADDR, .mask = ST_ACCEL_7_ODR_MASK, .odr_avl = { { 280, ST_ACCEL_7_ODR_AVL_280HZ_VAL, }, { 560, ST_ACCEL_7_ODR_AVL_560HZ_VAL, }, { 1120, ST_ACCEL_7_ODR_AVL_1120HZ_VAL, }, { 4480, ST_ACCEL_7_ODR_AVL_4480HZ_VAL, }, }, }, .pw = { .addr = ST_ACCEL_7_PW_ADDR, .mask = ST_ACCEL_7_PW_MASK, .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE, .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, }, .enable_axis = { .addr = ST_SENSORS_DEFAULT_AXIS_ADDR, .mask = ST_SENSORS_DEFAULT_AXIS_MASK, }, .fs = { .fs_avl = { [0] = { .num = ST_ACCEL_FS_AVL_2G, .gain = ST_ACCEL_7_FS_AVL_2_GAIN, }, }, }, /* * The part has a BDU bit but if set the data is never * updated so don't set it. */ .bdu = { }, .drdy_irq = { .addr = ST_ACCEL_7_DRDY_IRQ_ADDR, .mask_int1 = ST_ACCEL_7_DRDY_IRQ_INT1_MASK, .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_ACCEL_7_MULTIREAD_BIT, .bootime = 2, }, }; static int st_accel_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 *adata = 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 = adata->current_fullscale->gain / 1000000; *val2 = adata->current_fullscale->gain % 1000000; return IIO_VAL_INT_PLUS_MICRO; case IIO_CHAN_INFO_SAMP_FREQ: *val = adata->odr; return IIO_VAL_INT; default: return -EINVAL; } read_error: return err; } static int st_accel_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long mask) { int err; switch (mask) { case IIO_CHAN_INFO_SCALE: { int gain; gain = val * 1000000 + val2; err = st_sensors_set_fullscale_by_gain(indio_dev, gain); break; } case IIO_CHAN_INFO_SAMP_FREQ: if (val2) return -EINVAL; mutex_lock(&indio_dev->mlock); err = st_sensors_set_odr(indio_dev, val); mutex_unlock(&indio_dev->mlock); return err; default: return -EINVAL; } return err; } static ST_SENSORS_DEV_ATTR_SAMP_FREQ_AVAIL(); static ST_SENSORS_DEV_ATTR_SCALE_AVAIL(in_accel_scale_available); static struct attribute *st_accel_attributes[] = { &iio_dev_attr_sampling_frequency_available.dev_attr.attr, &iio_dev_attr_in_accel_scale_available.dev_attr.attr, NULL, }; static const struct attribute_group st_accel_attribute_group = { .attrs = st_accel_attributes, }; static const struct iio_info accel_info = { .driver_module = THIS_MODULE, .attrs = &st_accel_attribute_group, .read_raw = &st_accel_read_raw, .write_raw = &st_accel_write_raw, .debugfs_reg_access = &st_sensors_debugfs_reg_access, }; #ifdef CONFIG_IIO_TRIGGER static const struct iio_trigger_ops st_accel_trigger_ops = { .owner = THIS_MODULE, .set_trigger_state = ST_ACCEL_TRIGGER_SET_STATE, .validate_device = st_sensors_validate_device, }; #define ST_ACCEL_TRIGGER_OPS (&st_accel_trigger_ops) #else #define ST_ACCEL_TRIGGER_OPS NULL #endif int st_accel_common_probe(struct iio_dev *indio_dev) { struct st_sensor_data *adata = iio_priv(indio_dev); struct st_sensors_platform_data *pdata = (struct st_sensors_platform_data *)adata->dev->platform_data; int irq = adata->get_irq_data_ready(indio_dev); int err; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &accel_info; mutex_init(&adata->tb.buf_lock); err = st_sensors_power_enable(indio_dev); if (err) return err; err = st_sensors_check_device_support(indio_dev, ARRAY_SIZE(st_accel_sensors_settings), st_accel_sensors_settings); if (err < 0) goto st_accel_power_off; adata->num_data_channels = ST_ACCEL_NUMBER_DATA_CHANNELS; adata->multiread_bit = adata->sensor_settings->multi_read_bit; indio_dev->channels = adata->sensor_settings->ch; indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS; adata->current_fullscale = (struct st_sensor_fullscale_avl *) &adata->sensor_settings->fs.fs_avl[0]; adata->odr = adata->sensor_settings->odr.odr_avl[0].hz; if (!pdata) pdata = (struct st_sensors_platform_data *)&default_accel_pdata; err = st_sensors_init_sensor(indio_dev, pdata); if (err < 0) goto st_accel_power_off; err = st_accel_allocate_ring(indio_dev); if (err < 0) goto st_accel_power_off; if (irq > 0) { err = st_sensors_allocate_trigger(indio_dev, ST_ACCEL_TRIGGER_OPS); if (err < 0) goto st_accel_probe_trigger_error; } err = iio_device_register(indio_dev); if (err) goto st_accel_device_register_error; dev_info(&indio_dev->dev, "registered accelerometer %s\n", indio_dev->name); return 0; st_accel_device_register_error: if (irq > 0) st_sensors_deallocate_trigger(indio_dev); st_accel_probe_trigger_error: st_accel_deallocate_ring(indio_dev); st_accel_power_off: st_sensors_power_disable(indio_dev); return err; } EXPORT_SYMBOL(st_accel_common_probe); void st_accel_common_remove(struct iio_dev *indio_dev) { struct st_sensor_data *adata = iio_priv(indio_dev); st_sensors_power_disable(indio_dev); iio_device_unregister(indio_dev); if (adata->get_irq_data_ready(indio_dev) > 0) st_sensors_deallocate_trigger(indio_dev); st_accel_deallocate_ring(indio_dev); } EXPORT_SYMBOL(st_accel_common_remove); MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); MODULE_DESCRIPTION("STMicroelectronics accelerometers driver"); MODULE_LICENSE("GPL v2"); |