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Message-ID: <653B8888-D699-4B8B-93C2-6FF3308932AF@posteo.de>
Date: Mon, 31 Jul 2017 17:07:48 +0200
From: Martin Kepplinger <martink@...teo.de>
To: Harinath Nampally <harinath922@...il.com>, jic23@...nel.org
CC: knaack.h@....de, lars@...afoo.de, pmeerw@...erw.net,
gregkh@...uxfoundation.org, linux-iio@...r.kernel.org,
linux-kernel@...r.kernel.org, amsfield22@...il.com
Subject: Re: [PATCH] iio: accel: Bugfix to enbale and allow different events to work parallely.
Am 31. Juli 2017 13:17:38 MESZ schrieb Harinath Nampally <harinath922@...il.com>:
>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.
>
>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 for doing that work. I have had it on my list for a long time and you seem to fix it. Although I'd happily review and possibly test it, unfortunately I can't do so before the week of August 21st.
If this might go in quick, nothing will stop me from reviewing either, so, whatever. Thanks again!
>
>Signed-off-by: Harinath Nampally <harinath922@...il.com>
>---
>drivers/iio/accel/mma8452.c | 348
>++++++++++++++++++++++----------------------
> 1 file changed, 175 insertions(+), 173 deletions(-)
>
>diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
>index eb6e3dc..114b0e3 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 +110,40 @@ 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_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 mma8452_event_regs {
>+ 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;
>+};
>+
> /**
> * struct mma_chip_info - chip specific data
> * @chip_id: WHO_AM_I register's value
>@@ -116,40 +153,12 @@ 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 {
>@@ -394,11 +403,11 @@ static ssize_t mma8452_show_os_ratio_avail(struct
>device *dev,
> }
>
> static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(mma8452_show_samp_freq_avail);
>-static IIO_DEVICE_ATTR(in_accel_scale_available, S_IRUGO,
>+static IIO_DEVICE_ATTR(in_accel_scale_available, 0444,
> mma8452_show_scale_avail, NULL, 0);
>static
>IIO_DEVICE_ATTR(in_accel_filter_high_pass_3db_frequency_available,
>- S_IRUGO, mma8452_show_hp_cutoff_avail, NULL, 0);
>-static IIO_DEVICE_ATTR(in_accel_oversampling_ratio_available, S_IRUGO,
>+ 0444, mma8452_show_hp_cutoff_avail, NULL, 0);
>+static IIO_DEVICE_ATTR(in_accel_oversampling_ratio_available, 0444,
> mma8452_show_os_ratio_avail, NULL, 0);
>
> static int mma8452_get_samp_freq_index(struct mma8452_data *data,
>@@ -602,9 +611,8 @@ 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 +622,28 @@ 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 +747,50 @@ 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_cfg_ele = MMA8452_FF_MT_CFG_ELE;
>+ ev_regs->ev_cfg_chan_shift = MMA8452_FF_MT_CHAN_SHIFT;
>+ ev_regs->ev_src = MMA8452_FF_MT_SRC;
>+ ev_regs->ev_src_xe = MMA8452_FF_MT_SRC_XHE;
>+ ev_regs->ev_src_ye = MMA8452_FF_MT_SRC_YHE;
>+ ev_regs->ev_src_ze = MMA8452_FF_MT_SRC_ZHE;
>+ 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_cfg_ele = MMA8452_TRANSIENT_CFG_ELE;
>+ ev_regs->ev_cfg_chan_shift = MMA8452_TRANSIENT_CHAN_SHIFT;
>+ ev_regs->ev_src = MMA8452_TRANSIENT_SRC;
>+ ev_regs->ev_src_xe = MMA8452_TRANSIENT_SRC_XTRANSE;
>+ ev_regs->ev_src_ye = MMA8452_TRANSIENT_SRC_YTRANSE;
>+ ev_regs->ev_src_ze = MMA8452_TRANSIENT_SRC_ZTRANSE;
>+ ev_regs->ev_ths = MMA8452_TRANSIENT_THS;
>+ ev_regs->ev_ths_mask = MMA8452_TRANSIENT_THS_MASK;
>+ ev_regs->ev_count = MMA8452_TRANSIENT_COUNT;
>+ break;
>+ default:
>+ return -EINVAL;
>+ }
>+ break;
>+ default:
>+ return -EINVAL;
>+ }
>+ return 0;
>+}
>+
> static int mma8452_read_thresh(struct iio_dev *indio_dev,
> const struct iio_chan_spec *chan,
> enum iio_event_type type,
>@@ -749,21 +800,24 @@ 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);
>+ ev_regs.ev_count);
> if (ret < 0)
> return ret;
>
>@@ -809,14 +863,18 @@ 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 +888,7 @@ 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,
>@@ -861,26 +918,29 @@ 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:
>+ 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) ? 1 : 0;
>
>- return !!(ret & BIT(chan->scan_index +
>- chip->ev_cfg_chan_shift));
>+ default:
>+ return -EINVAL;
>+ }
>+ break;
> default:
> return -EINVAL;
> }
>+ return 0;
> }
>
> static int mma8452_write_event_config(struct iio_dev *indio_dev,
>@@ -890,39 +950,36 @@ 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);
>+ break;
> default:
> return -EINVAL;
> }
>@@ -934,35 +991,25 @@ 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 +1021,38 @@ 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;
>
>- if (src & MMA8452_INT_DRDY) {
>+ enabled_interrupts = i2c_smbus_read_byte_data(data->client,
>+ MMA8452_CTRL_REG4);
>+ if (enabled_interrupts < 0)
>+ return enabled_interrupts;
>+
>+ if ((src & MMA8452_INT_DRDY) && (src & enabled_interrupts)) {
> 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) && (src & enabled_interrupts)) {
>+ 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) && (src & enabled_interrupts)) {
> mma8452_transient_interrupt(indio_dev);
> ret = IRQ_HANDLED;
> }
>@@ -1020,8 +1082,8 @@ static irqreturn_t mma8452_trigger_handler(int
>irq, void *p)
> }
>
> static int mma8452_reg_access_dbg(struct iio_dev *indio_dev,
>- unsigned reg, unsigned writeval,
>- unsigned *readval)
>+ unsigned int reg, unsigned int writeval,
>+ unsigned int *readval)
> {
> int ret;
> struct mma8452_data *data = iio_priv(indio_dev);
>@@ -1222,96 +1284,36 @@ 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,
> },
> };
>
--
Martin Kepplinger
http://martinkepplinger.com
sent from mobile
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