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Message-ID: <alpine.DEB.2.20.1708161455420.27224@vps.pmeerw.net>
Date: Wed, 16 Aug 2017 15:12:03 +0200 (CEST)
From: Peter Meerwald-Stadler <pmeerw@...erw.net>
To: Harinath Nampally <harinath922@...il.com>
cc: jic23@...nel.org, knaack.h@....de, lars@...afoo.de,
gregkh@...uxfoundation.org, linux-iio@...r.kernel.org,
linux-kernel@...r.kernel.org, amsfield22@...il.com,
martink@...teo.de
Subject: Re: [PATCH] iio: accel: mma8452: Bugfix to enbale and allow different
events to work parallely.
Hello,
fixes are always welcome, some comments regarding the patch
in subject: typo "enable"
> This driver supports multiple devices like mma8653, mma8652, mma8452, mma8453 and
> fxls8471. Almost all these devices have more than one event. Current driver design
> hardcodes the event specific information, so only one event can be supported by this
> driver and current design doesn't have the flexibility to add more events.
> This patch fixes by detaching the event related information from chip_info struct,
> and based on channel type and event direction the corresponding event configuration registers
> are picked dynamically. Hence multiple events can be handled in read/write callbacks.
which chip can have which event(s)?
> Changes are thoroughly tested on fxls8471 device on imx6UL Eval board using iio_event_monitor user space program.
>
> After this fix both Freefall and Transient events are handled by the driver without any conflicts.
thanks, p.
> Signed-off-by: Harinath Nampally <harinath922@...il.com>
> ---
> drivers/iio/accel/mma8452.c | 309 ++++++++++++++++++++------------------------
> 1 file changed, 141 insertions(+), 168 deletions(-)
>
> diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
> index eb6e3dc..1b83e52 100644
> --- a/drivers/iio/accel/mma8452.c
> +++ b/drivers/iio/accel/mma8452.c
> @@ -59,7 +59,9 @@
> #define MMA8452_FF_MT_THS 0x17
> #define MMA8452_FF_MT_THS_MASK 0x7f
> #define MMA8452_FF_MT_COUNT 0x18
> +#define MMA8452_FF_MT_CHAN_SHIFT 3
> #define MMA8452_TRANSIENT_CFG 0x1d
> +#define MMA8452_TRANSIENT_CFG_CHAN(chan) BIT(chan + 1)
> #define MMA8452_TRANSIENT_CFG_HPF_BYP BIT(0)
> #define MMA8452_TRANSIENT_CFG_ELE BIT(4)
> #define MMA8452_TRANSIENT_SRC 0x1e
> @@ -69,6 +71,7 @@
> #define MMA8452_TRANSIENT_THS 0x1f
> #define MMA8452_TRANSIENT_THS_MASK GENMASK(6, 0)
> #define MMA8452_TRANSIENT_COUNT 0x20
> +#define MMA8452_TRANSIENT_CHAN_SHIFT 1
> #define MMA8452_CTRL_REG1 0x2a
> #define MMA8452_CTRL_ACTIVE BIT(0)
> #define MMA8452_CTRL_DR_MASK GENMASK(5, 3)
> @@ -107,6 +110,26 @@ struct mma8452_data {
> const struct mma_chip_info *chip_info;
> };
>
> + /**
> + * struct mma8452_event_regs - chip specific data related to events
> + * @ev_cfg: event config register address
> + * @ev_src: event source register address
> + * @ev_ths: event threshold register address
> + * @ev_ths_mask: mask for the threshold value
> + * @ev_count: event count (period) register address
> + *
> + * Since not all chips supported by the driver support comparing high pass
> + * filtered data for events (interrupts), different interrupt sources are
> + * used for different chips and the relevant registers are included here.
> + */
> +struct mma8452_event_regs {
> + u8 ev_cfg;
> + u8 ev_src;
> + u8 ev_ths;
> + u8 ev_ths_mask;
> + u8 ev_count;
> +};
> +
> /**
> * struct mma_chip_info - chip specific data
> * @chip_id: WHO_AM_I register's value
> @@ -116,40 +139,12 @@ struct mma8452_data {
> * @mma_scales: scale factors for converting register values
> * to m/s^2; 3 modes: 2g, 4g, 8g; 2 integers
> * per mode: m/s^2 and micro m/s^2
> - * @ev_cfg: event config register address
> - * @ev_cfg_ele: latch bit in event config register
> - * @ev_cfg_chan_shift: number of the bit to enable events in X
> - * direction; in event config register
> - * @ev_src: event source register address
> - * @ev_src_xe: bit in event source register that indicates
> - * an event in X direction
> - * @ev_src_ye: bit in event source register that indicates
> - * an event in Y direction
> - * @ev_src_ze: bit in event source register that indicates
> - * an event in Z direction
> - * @ev_ths: event threshold register address
> - * @ev_ths_mask: mask for the threshold value
> - * @ev_count: event count (period) register address
> - *
> - * Since not all chips supported by the driver support comparing high pass
> - * filtered data for events (interrupts), different interrupt sources are
> - * used for different chips and the relevant registers are included here.
> */
> struct mma_chip_info {
> u8 chip_id;
> const struct iio_chan_spec *channels;
> int num_channels;
> const int mma_scales[3][2];
> - u8 ev_cfg;
> - u8 ev_cfg_ele;
> - u8 ev_cfg_chan_shift;
> - u8 ev_src;
> - u8 ev_src_xe;
> - u8 ev_src_ye;
> - u8 ev_src_ze;
> - u8 ev_ths;
> - u8 ev_ths_mask;
> - u8 ev_count;
> };
>
> enum {
> @@ -602,9 +597,8 @@ static int mma8452_set_power_mode(struct mma8452_data *data, u8 mode)
> static int mma8452_freefall_mode_enabled(struct mma8452_data *data)
> {
> int val;
> - const struct mma_chip_info *chip = data->chip_info;
>
> - val = i2c_smbus_read_byte_data(data->client, chip->ev_cfg);
> + val = i2c_smbus_read_byte_data(data->client, MMA8452_FF_MT_CFG);
> if (val < 0)
> return val;
>
> @@ -614,29 +608,28 @@ static int mma8452_freefall_mode_enabled(struct mma8452_data *data)
> static int mma8452_set_freefall_mode(struct mma8452_data *data, bool state)
> {
> int val;
> - const struct mma_chip_info *chip = data->chip_info;
>
> if ((state && mma8452_freefall_mode_enabled(data)) ||
> (!state && !(mma8452_freefall_mode_enabled(data))))
> return 0;
>
> - val = i2c_smbus_read_byte_data(data->client, chip->ev_cfg);
> + val = i2c_smbus_read_byte_data(data->client, MMA8452_FF_MT_CFG);
> if (val < 0)
> return val;
>
> if (state) {
> - val |= BIT(idx_x + chip->ev_cfg_chan_shift);
> - val |= BIT(idx_y + chip->ev_cfg_chan_shift);
> - val |= BIT(idx_z + chip->ev_cfg_chan_shift);
> + val |= BIT(idx_x + MMA8452_FF_MT_CHAN_SHIFT);
> + val |= BIT(idx_y + MMA8452_FF_MT_CHAN_SHIFT);
> + val |= BIT(idx_z + MMA8452_FF_MT_CHAN_SHIFT);
> val &= ~MMA8452_FF_MT_CFG_OAE;
> } else {
> - val &= ~BIT(idx_x + chip->ev_cfg_chan_shift);
> - val &= ~BIT(idx_y + chip->ev_cfg_chan_shift);
> - val &= ~BIT(idx_z + chip->ev_cfg_chan_shift);
> + val &= ~BIT(idx_x + MMA8452_FF_MT_CHAN_SHIFT);
> + val &= ~BIT(idx_y + MMA8452_FF_MT_CHAN_SHIFT);
> + val &= ~BIT(idx_z + MMA8452_FF_MT_CHAN_SHIFT);
> val |= MMA8452_FF_MT_CFG_OAE;
> }
>
> - return mma8452_change_config(data, chip->ev_cfg, val);
> + return mma8452_change_config(data, MMA8452_FF_MT_CFG, val);
> }
>
> static int mma8452_set_hp_filter_frequency(struct mma8452_data *data,
> @@ -740,6 +733,39 @@ static int mma8452_write_raw(struct iio_dev *indio_dev,
> return ret;
> }
>
> +static int mma8452_get_event_regs(const struct iio_chan_spec *chan,
> + enum iio_event_direction dir,
> + struct mma8452_event_regs *ev_regs
> + )
> +{
> + if (!chan)
> + return -EINVAL;
> + switch (chan->type) {
> + case IIO_ACCEL:
> + switch (dir) {
> + case IIO_EV_DIR_FALLING:
> + ev_regs->ev_cfg = MMA8452_FF_MT_CFG;
> + ev_regs->ev_src = MMA8452_FF_MT_SRC;
> + ev_regs->ev_ths = MMA8452_FF_MT_THS;
> + ev_regs->ev_ths_mask = MMA8452_FF_MT_THS_MASK;
> + ev_regs->ev_count = MMA8452_FF_MT_COUNT;
> + break;
> + case IIO_EV_DIR_RISING:
> + ev_regs->ev_cfg = MMA8452_TRANSIENT_CFG;
> + ev_regs->ev_src = MMA8452_TRANSIENT_SRC;
> + ev_regs->ev_ths = MMA8452_TRANSIENT_THS;
ev_ths_mask is not set here
> + ev_regs->ev_count = MMA8452_TRANSIENT_COUNT;
> + break;
> + default:
> + return -EINVAL;
> + }
> + break;
> + default:
> + return -EINVAL;
> + }
> + return 0;
could replace 'breaks' with return 0 to save some lines and simplify
control flow
> +}
> +
> static int mma8452_read_thresh(struct iio_dev *indio_dev,
> const struct iio_chan_spec *chan,
> enum iio_event_type type,
> @@ -749,21 +775,23 @@ static int mma8452_read_thresh(struct iio_dev *indio_dev,
> {
> struct mma8452_data *data = iio_priv(indio_dev);
> int ret, us, power_mode;
> + struct mma8452_event_regs ev_regs;
>
> + ret = mma8452_get_event_regs(chan, dir, &ev_regs);
> + if (ret)
> + return ret;
> switch (info) {
> case IIO_EV_INFO_VALUE:
> - ret = i2c_smbus_read_byte_data(data->client,
> - data->chip_info->ev_ths);
> + ret = i2c_smbus_read_byte_data(data->client, ev_regs.ev_ths);
> if (ret < 0)
> return ret;
>
> - *val = ret & data->chip_info->ev_ths_mask;
> + *val = ret & ev_regs.ev_ths_mask;
>
> return IIO_VAL_INT;
>
> case IIO_EV_INFO_PERIOD:
> - ret = i2c_smbus_read_byte_data(data->client,
> - data->chip_info->ev_count);
> + ret = i2c_smbus_read_byte_data(data->client, ev_regs.ev_count);
> if (ret < 0)
> return ret;
>
> @@ -809,14 +837,18 @@ static int mma8452_write_thresh(struct iio_dev *indio_dev,
> {
> struct mma8452_data *data = iio_priv(indio_dev);
> int ret, reg, steps;
> + struct mma8452_event_regs ev_regs;
> +
> + ret = mma8452_get_event_regs(chan, dir, &ev_regs);
> + if (ret)
> + return ret;
>
> switch (info) {
> case IIO_EV_INFO_VALUE:
> - if (val < 0 || val > MMA8452_TRANSIENT_THS_MASK)
> + if (val < 0 || val > ev_regs.ev_ths_mask)
> return -EINVAL;
>
> - return mma8452_change_config(data, data->chip_info->ev_ths,
> - val);
> + return mma8452_change_config(data, ev_regs.ev_ths, val);
>
> case IIO_EV_INFO_PERIOD:
> ret = mma8452_get_power_mode(data);
> @@ -830,8 +862,7 @@ static int mma8452_write_thresh(struct iio_dev *indio_dev,
> if (steps < 0 || steps > 0xff)
> return -EINVAL;
>
> - return mma8452_change_config(data, data->chip_info->ev_count,
> - steps);
> + return mma8452_change_config(data, ev_regs.ev_count, steps);
>
> case IIO_EV_INFO_HIGH_PASS_FILTER_3DB:
> reg = i2c_smbus_read_byte_data(data->client,
> @@ -861,23 +892,23 @@ static int mma8452_read_event_config(struct iio_dev *indio_dev,
> enum iio_event_direction dir)
> {
> struct mma8452_data *data = iio_priv(indio_dev);
> - const struct mma_chip_info *chip = data->chip_info;
> int ret;
>
> - switch (dir) {
> - case IIO_EV_DIR_FALLING:
> - return mma8452_freefall_mode_enabled(data);
> - case IIO_EV_DIR_RISING:
> - if (mma8452_freefall_mode_enabled(data))
> - return 0;
> + switch (chan->type) {
> + case IIO_ACCEL:
this adds a check for chan-type == IIO_ACCESS, so strictly this would be
an unrelated change...
> + switch (dir) {
> + case IIO_EV_DIR_FALLING:
> + return mma8452_freefall_mode_enabled(data);
> + case IIO_EV_DIR_RISING:
> + ret = i2c_smbus_read_byte_data(data->client, MMA8452_TRANSIENT_CFG);
> + if (ret < 0)
> + return ret;
>
> - ret = i2c_smbus_read_byte_data(data->client,
> - data->chip_info->ev_cfg);
> - if (ret < 0)
> - return ret;
> + return !!(ret & MMA8452_TRANSIENT_CFG_CHAN(chan->scan_index));
>
> - return !!(ret & BIT(chan->scan_index +
> - chip->ev_cfg_chan_shift));
> + default:
> + return -EINVAL;
> + }
> default:
> return -EINVAL;
> }
> @@ -890,39 +921,33 @@ static int mma8452_write_event_config(struct iio_dev *indio_dev,
> int state)
> {
> struct mma8452_data *data = iio_priv(indio_dev);
> - const struct mma_chip_info *chip = data->chip_info;
> int val, ret;
>
> ret = mma8452_set_runtime_pm_state(data->client, state);
> if (ret)
> return ret;
>
> - switch (dir) {
> - case IIO_EV_DIR_FALLING:
> - return mma8452_set_freefall_mode(data, state);
> - case IIO_EV_DIR_RISING:
> - val = i2c_smbus_read_byte_data(data->client, chip->ev_cfg);
> - if (val < 0)
> - return val;
> -
> - if (state) {
> - if (mma8452_freefall_mode_enabled(data)) {
> - val &= ~BIT(idx_x + chip->ev_cfg_chan_shift);
> - val &= ~BIT(idx_y + chip->ev_cfg_chan_shift);
> - val &= ~BIT(idx_z + chip->ev_cfg_chan_shift);
> - val |= MMA8452_FF_MT_CFG_OAE;
> - }
> - val |= BIT(chan->scan_index + chip->ev_cfg_chan_shift);
> - } else {
> - if (mma8452_freefall_mode_enabled(data))
> - return 0;
> -
> - val &= ~BIT(chan->scan_index + chip->ev_cfg_chan_shift);
> + switch (chan->type) {
> + case IIO_ACCEL:
> + switch (dir) {
> + case IIO_EV_DIR_FALLING:
> + return mma8452_set_freefall_mode(data, state);
> + case IIO_EV_DIR_RISING:
> + val = i2c_smbus_read_byte_data(data->client, MMA8452_TRANSIENT_CFG);
> + if (val < 0)
> + return val;
> +
> + if (state)
> + val |= MMA8452_TRANSIENT_CFG_CHAN(chan->scan_index);
> + else
> + val &= ~MMA8452_TRANSIENT_CFG_CHAN(chan->scan_index);
> +
> + val |= MMA8452_TRANSIENT_CFG_ELE;
> +
> + return mma8452_change_config(data, MMA8452_TRANSIENT_CFG, val);
> + default:
> + return -EINVAL;
> }
> -
> - val |= chip->ev_cfg_ele;
> -
> - return mma8452_change_config(data, chip->ev_cfg, val);
> default:
> return -EINVAL;
> }
> @@ -934,35 +959,25 @@ static void mma8452_transient_interrupt(struct iio_dev *indio_dev)
> s64 ts = iio_get_time_ns(indio_dev);
> int src;
>
> - src = i2c_smbus_read_byte_data(data->client, data->chip_info->ev_src);
> + src = i2c_smbus_read_byte_data(data->client, MMA8452_TRANSIENT_SRC);
> if (src < 0)
> return;
>
> - if (mma8452_freefall_mode_enabled(data)) {
> - iio_push_event(indio_dev,
> - IIO_MOD_EVENT_CODE(IIO_ACCEL, 0,
> - IIO_MOD_X_AND_Y_AND_Z,
> - IIO_EV_TYPE_MAG,
> - IIO_EV_DIR_FALLING),
> - ts);
> - return;
> - }
> -
> - if (src & data->chip_info->ev_src_xe)
> + if (src & MMA8452_TRANSIENT_SRC_XTRANSE)
> iio_push_event(indio_dev,
> IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_X,
> IIO_EV_TYPE_MAG,
> IIO_EV_DIR_RISING),
> ts);
>
> - if (src & data->chip_info->ev_src_ye)
> + if (src & MMA8452_TRANSIENT_SRC_YTRANSE)
> iio_push_event(indio_dev,
> IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_Y,
> IIO_EV_TYPE_MAG,
> IIO_EV_DIR_RISING),
> ts);
>
> - if (src & data->chip_info->ev_src_ze)
> + if (src & MMA8452_TRANSIENT_SRC_ZTRANSE)
> iio_push_event(indio_dev,
> IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_Z,
> IIO_EV_TYPE_MAG,
> @@ -974,23 +989,41 @@ static irqreturn_t mma8452_interrupt(int irq, void *p)
> {
> struct iio_dev *indio_dev = p;
> struct mma8452_data *data = iio_priv(indio_dev);
> - const struct mma_chip_info *chip = data->chip_info;
> int ret = IRQ_NONE;
> - int src;
> + int src, enabled_interrupts;
>
> src = i2c_smbus_read_byte_data(data->client, MMA8452_INT_SRC);
> if (src < 0)
> return IRQ_NONE;
>
> + enabled_interrupts = i2c_smbus_read_byte_data(data->client,
> + MMA8452_CTRL_REG4);
> + if (enabled_interrupts < 0)
> + return enabled_interrupts;
> +
> + if (!(src & enabled_interrupts))
> + return IRQ_NONE;
> +
> if (src & MMA8452_INT_DRDY) {
> iio_trigger_poll_chained(indio_dev->trig);
> ret = IRQ_HANDLED;
> }
>
> - if ((src & MMA8452_INT_TRANS &&
> - chip->ev_src == MMA8452_TRANSIENT_SRC) ||
> - (src & MMA8452_INT_FF_MT &&
> - chip->ev_src == MMA8452_FF_MT_SRC)) {
> + if (src & MMA8452_INT_FF_MT) {
> + if (mma8452_freefall_mode_enabled(data)) {
> + s64 ts = iio_get_time_ns(indio_dev);
> +
> + iio_push_event(indio_dev,
> + IIO_MOD_EVENT_CODE(IIO_ACCEL, 0,
> + IIO_MOD_X_AND_Y_AND_Z,
> + IIO_EV_TYPE_MAG,
> + IIO_EV_DIR_FALLING),
> + ts);
> + }
> + ret = IRQ_HANDLED;
> + }
> +
> + if (src & MMA8452_INT_TRANS) {
> mma8452_transient_interrupt(indio_dev);
> ret = IRQ_HANDLED;
> }
> @@ -1222,96 +1255,36 @@ static const struct mma_chip_info mma_chip_info_table[] = {
> * g * N * 1000000 / 2048 for N = 2, 4, 8 and g=9.80665
> */
> .mma_scales = { {0, 2394}, {0, 4788}, {0, 9577} },
> - .ev_cfg = MMA8452_TRANSIENT_CFG,
> - .ev_cfg_ele = MMA8452_TRANSIENT_CFG_ELE,
> - .ev_cfg_chan_shift = 1,
> - .ev_src = MMA8452_TRANSIENT_SRC,
> - .ev_src_xe = MMA8452_TRANSIENT_SRC_XTRANSE,
> - .ev_src_ye = MMA8452_TRANSIENT_SRC_YTRANSE,
> - .ev_src_ze = MMA8452_TRANSIENT_SRC_ZTRANSE,
> - .ev_ths = MMA8452_TRANSIENT_THS,
> - .ev_ths_mask = MMA8452_TRANSIENT_THS_MASK,
> - .ev_count = MMA8452_TRANSIENT_COUNT,
> },
> [mma8452] = {
> .chip_id = MMA8452_DEVICE_ID,
> .channels = mma8452_channels,
> .num_channels = ARRAY_SIZE(mma8452_channels),
> .mma_scales = { {0, 9577}, {0, 19154}, {0, 38307} },
> - .ev_cfg = MMA8452_TRANSIENT_CFG,
> - .ev_cfg_ele = MMA8452_TRANSIENT_CFG_ELE,
> - .ev_cfg_chan_shift = 1,
> - .ev_src = MMA8452_TRANSIENT_SRC,
> - .ev_src_xe = MMA8452_TRANSIENT_SRC_XTRANSE,
> - .ev_src_ye = MMA8452_TRANSIENT_SRC_YTRANSE,
> - .ev_src_ze = MMA8452_TRANSIENT_SRC_ZTRANSE,
> - .ev_ths = MMA8452_TRANSIENT_THS,
> - .ev_ths_mask = MMA8452_TRANSIENT_THS_MASK,
> - .ev_count = MMA8452_TRANSIENT_COUNT,
> },
> [mma8453] = {
> .chip_id = MMA8453_DEVICE_ID,
> .channels = mma8453_channels,
> .num_channels = ARRAY_SIZE(mma8453_channels),
> .mma_scales = { {0, 38307}, {0, 76614}, {0, 153228} },
> - .ev_cfg = MMA8452_TRANSIENT_CFG,
> - .ev_cfg_ele = MMA8452_TRANSIENT_CFG_ELE,
> - .ev_cfg_chan_shift = 1,
> - .ev_src = MMA8452_TRANSIENT_SRC,
> - .ev_src_xe = MMA8452_TRANSIENT_SRC_XTRANSE,
> - .ev_src_ye = MMA8452_TRANSIENT_SRC_YTRANSE,
> - .ev_src_ze = MMA8452_TRANSIENT_SRC_ZTRANSE,
> - .ev_ths = MMA8452_TRANSIENT_THS,
> - .ev_ths_mask = MMA8452_TRANSIENT_THS_MASK,
> - .ev_count = MMA8452_TRANSIENT_COUNT,
> },
> [mma8652] = {
> .chip_id = MMA8652_DEVICE_ID,
> .channels = mma8652_channels,
> .num_channels = ARRAY_SIZE(mma8652_channels),
> .mma_scales = { {0, 9577}, {0, 19154}, {0, 38307} },
> - .ev_cfg = MMA8452_FF_MT_CFG,
> - .ev_cfg_ele = MMA8452_FF_MT_CFG_ELE,
> - .ev_cfg_chan_shift = 3,
> - .ev_src = MMA8452_FF_MT_SRC,
> - .ev_src_xe = MMA8452_FF_MT_SRC_XHE,
> - .ev_src_ye = MMA8452_FF_MT_SRC_YHE,
> - .ev_src_ze = MMA8452_FF_MT_SRC_ZHE,
> - .ev_ths = MMA8452_FF_MT_THS,
> - .ev_ths_mask = MMA8452_FF_MT_THS_MASK,
> - .ev_count = MMA8452_FF_MT_COUNT,
> },
> [mma8653] = {
> .chip_id = MMA8653_DEVICE_ID,
> .channels = mma8653_channels,
> .num_channels = ARRAY_SIZE(mma8653_channels),
> .mma_scales = { {0, 38307}, {0, 76614}, {0, 153228} },
> - .ev_cfg = MMA8452_FF_MT_CFG,
> - .ev_cfg_ele = MMA8452_FF_MT_CFG_ELE,
> - .ev_cfg_chan_shift = 3,
> - .ev_src = MMA8452_FF_MT_SRC,
> - .ev_src_xe = MMA8452_FF_MT_SRC_XHE,
> - .ev_src_ye = MMA8452_FF_MT_SRC_YHE,
> - .ev_src_ze = MMA8452_FF_MT_SRC_ZHE,
> - .ev_ths = MMA8452_FF_MT_THS,
> - .ev_ths_mask = MMA8452_FF_MT_THS_MASK,
> - .ev_count = MMA8452_FF_MT_COUNT,
> },
> [fxls8471] = {
> .chip_id = FXLS8471_DEVICE_ID,
> .channels = mma8451_channels,
> .num_channels = ARRAY_SIZE(mma8451_channels),
> .mma_scales = { {0, 2394}, {0, 4788}, {0, 9577} },
> - .ev_cfg = MMA8452_TRANSIENT_CFG,
> - .ev_cfg_ele = MMA8452_TRANSIENT_CFG_ELE,
> - .ev_cfg_chan_shift = 1,
> - .ev_src = MMA8452_TRANSIENT_SRC,
> - .ev_src_xe = MMA8452_TRANSIENT_SRC_XTRANSE,
> - .ev_src_ye = MMA8452_TRANSIENT_SRC_YTRANSE,
> - .ev_src_ze = MMA8452_TRANSIENT_SRC_ZTRANSE,
> - .ev_ths = MMA8452_TRANSIENT_THS,
> - .ev_ths_mask = MMA8452_TRANSIENT_THS_MASK,
> - .ev_count = MMA8452_TRANSIENT_COUNT,
> },
> };
>
>
--
Peter Meerwald-Stadler
Mobile: +43 664 24 44 418
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