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staging:iio:accel:sca3000 Clean up register defines. 

Introduce some more masks and generally drive towards consistent naming.
Note the small indents used to indicate parts of registers + parts of
multiplexed registers.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
This commit is contained in:
Jonathan Cameron 2016-10-08 17:39:09 +01:00
parent 45ae5561ac
commit 9bc11d32b3
1 changed files with 164 additions and 162 deletions
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326
drivers/staging/iio/accel/sca3000.c
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@ -28,111 +28,111 @@
#define SCA3000_WRITE_REG(a) (((a) << 2) | 0x02) #define SCA3000_WRITE_REG(a) (((a) << 2) | 0x02)
#define SCA3000_READ_REG(a) ((a) << 2) #define SCA3000_READ_REG(a) ((a) << 2)
#define SCA3000_REG_ADDR_REVID 0x00 #define SCA3000_REG_REVID_ADDR 0x00
#define SCA3000_REVID_MAJOR_MASK 0xf0 #define SCA3000_REG_REVID_MAJOR_MASK GENMASK(8, 4)
#define SCA3000_REVID_MINOR_MASK 0x0f #define SCA3000_REG_REVID_MINOR_MASK GENMASK(3, 0)
#define SCA3000_REG_ADDR_STATUS 0x02
#define SCA3000_LOCKED 0x20
#define SCA3000_EEPROM_CS_ERROR 0x02
#define SCA3000_SPI_FRAME_ERROR 0x01
#define SCA3000_REG_STATUS_ADDR 0x02
#define SCA3000_LOCKED BIT(5)
#define SCA3000_EEPROM_CS_ERROR BIT(1)
#define SCA3000_SPI_FRAME_ERROR BIT(0)
/* All reads done using register decrement so no need to directly access LSBs */ /* All reads done using register decrement so no need to directly access LSBs */
#define SCA3000_REG_ADDR_X_MSB 0x05 #define SCA3000_REG_X_MSB_ADDR 0x05
#define SCA3000_REG_ADDR_Y_MSB 0x07 #define SCA3000_REG_Y_MSB_ADDR 0x07
#define SCA3000_REG_ADDR_Z_MSB 0x09 #define SCA3000_REG_Z_MSB_ADDR 0x09
#define SCA3000_REG_ADDR_RING_OUT 0x0f #define SCA3000_REG_RING_OUT_ADDR 0x0f
/* Temp read untested - the e05 doesn't have the sensor */ /* Temp read untested - the e05 doesn't have the sensor */
#define SCA3000_REG_ADDR_TEMP_MSB 0x13 #define SCA3000_REG_TEMP_MSB_ADDR 0x13
#define SCA3000_REG_ADDR_MODE 0x14 #define SCA3000_REG_MODE_ADDR 0x14
#define SCA3000_MODE_PROT_MASK 0x28 #define SCA3000_MODE_PROT_MASK 0x28
#define SCA3000_REG_MODE_RING_BUF_ENABLE BIT(7)
#define SCA3000_REG_MODE_RING_BUF_8BIT BIT(6)
#define SCA3000_RING_BUF_ENABLE 0x80
#define SCA3000_RING_BUF_8BIT 0x40
/* /*
* Free fall detection triggers an interrupt if the acceleration * Free fall detection triggers an interrupt if the acceleration
* is below a threshold for equivalent of 25cm drop * is below a threshold for equivalent of 25cm drop
*/ */
#define SCA3000_FREE_FALL_DETECT 0x10 #define SCA3000_REG_MODE_FREE_FALL_DETECT BIT(4)
#define SCA3000_MEAS_MODE_NORMAL 0x00 #define SCA3000_REG_MODE_MEAS_MODE_NORMAL 0x00
#define SCA3000_MEAS_MODE_OP_1 0x01 #define SCA3000_REG_MODE_MEAS_MODE_OP_1 0x01
#define SCA3000_MEAS_MODE_OP_2 0x02 #define SCA3000_REG_MODE_MEAS_MODE_OP_2 0x02
#define SCA3000_MODE_MASK 0x03
/* /*
* In motion detection mode the accelerations are band pass filtered * In motion detection mode the accelerations are band pass filtered
* (approx 1 - 25Hz) and then a programmable threshold used to trigger * (approx 1 - 25Hz) and then a programmable threshold used to trigger
* and interrupt. * and interrupt.
*/ */
#define SCA3000_MEAS_MODE_MOT_DET 0x03 #define SCA3000_REG_MODE_MEAS_MODE_MOT_DET 0x03
#define SCA3000_REG_MODE_MODE_MASK 0x03
#define SCA3000_REG_ADDR_BUF_COUNT 0x15 #define SCA3000_REG_BUF_COUNT_ADDR 0x15
#define SCA3000_REG_ADDR_INT_STATUS 0x16 #define SCA3000_REG_INT_STATUS_ADDR 0x16
#define SCA3000_REG_INT_STATUS_THREE_QUARTERS BIT(7)
#define SCA3000_INT_STATUS_THREE_QUARTERS 0x80 #define SCA3000_REG_INT_STATUS_HALF BIT(6)
#define SCA3000_INT_STATUS_HALF 0x40
#define SCA3000_INT_STATUS_FREE_FALL BIT(3)
#define SCA3000_INT_STATUS_FREE_FALL 0x08 #define SCA3000_INT_STATUS_Y_TRIGGER BIT(2)
#define SCA3000_INT_STATUS_Y_TRIGGER 0x04 #define SCA3000_INT_STATUS_X_TRIGGER BIT(1)
#define SCA3000_INT_STATUS_X_TRIGGER 0x02 #define SCA3000_INT_STATUS_Z_TRIGGER BIT(0)
#define SCA3000_INT_STATUS_Z_TRIGGER 0x01
/* Used to allow access to multiplexed registers */ /* Used to allow access to multiplexed registers */
#define SCA3000_REG_ADDR_CTRL_SEL 0x18 #define SCA3000_REG_CTRL_SEL_ADDR 0x18
/* Only available for SCA3000-D03 and SCA3000-D01 */ /* Only available for SCA3000-D03 and SCA3000-D01 */
#define SCA3000_REG_CTRL_SEL_I2C_DISABLE 0x01 #define SCA3000_REG_CTRL_SEL_I2C_DISABLE 0x01
#define SCA3000_REG_CTRL_SEL_MD_CTRL 0x02 #define SCA3000_REG_CTRL_SEL_MD_CTRL 0x02
#define SCA3000_REG_CTRL_SEL_MD_Y_TH 0x03 #define SCA3000_REG_CTRL_SEL_MD_Y_TH 0x03
#define SCA3000_REG_CTRL_SEL_MD_X_TH 0x04 #define SCA3000_REG_CTRL_SEL_MD_X_TH 0x04
#define SCA3000_REG_CTRL_SEL_MD_Z_TH 0x05 #define SCA3000_REG_CTRL_SEL_MD_Z_TH 0x05
/* /*
* BE VERY CAREFUL WITH THIS, IF 3 BITS ARE NOT SET the device * BE VERY CAREFUL WITH THIS, IF 3 BITS ARE NOT SET the device
* will not function * will not function
*/ */
#define SCA3000_REG_CTRL_SEL_OUT_CTRL 0x0B #define SCA3000_REG_CTRL_SEL_OUT_CTRL 0x0B
#define SCA3000_OUT_CTRL_PROT_MASK 0xE0
#define SCA3000_OUT_CTRL_BUF_X_EN 0x10 #define SCA3000_REG_OUT_CTRL_PROT_MASK 0xE0
#define SCA3000_OUT_CTRL_BUF_Y_EN 0x08 #define SCA3000_REG_OUT_CTRL_BUF_X_EN 0x10
#define SCA3000_OUT_CTRL_BUF_Z_EN 0x04 #define SCA3000_REG_OUT_CTRL_BUF_Y_EN 0x08
#define SCA3000_OUT_CTRL_BUF_DIV_MASK 0x03 #define SCA3000_REG_OUT_CTRL_BUF_Z_EN 0x04
#define SCA3000_OUT_CTRL_BUF_DIV_4 0x02 #define SCA3000_REG_OUT_CTRL_BUF_DIV_MASK 0x03
#define SCA3000_OUT_CTRL_BUF_DIV_2 0x01 #define SCA3000_REG_OUT_CTRL_BUF_DIV_4 0x02
#define SCA3000_REG_OUT_CTRL_BUF_DIV_2 0x01
/* /*
* Control which motion detector interrupts are on. * Control which motion detector interrupts are on.
* For now only OR combinations are supported. * For now only OR combinations are supported.
*/ */
#define SCA3000_MD_CTRL_PROT_MASK 0xC0 #define SCA3000_MD_CTRL_PROT_MASK 0xC0
#define SCA3000_MD_CTRL_OR_Y 0x01 #define SCA3000_MD_CTRL_OR_Y BIT(0)
#define SCA3000_MD_CTRL_OR_X 0x02 #define SCA3000_MD_CTRL_OR_X BIT(1)
#define SCA3000_MD_CTRL_OR_Z 0x04 #define SCA3000_MD_CTRL_OR_Z BIT(2)
/* Currently unsupported */ /* Currently unsupported */
#define SCA3000_MD_CTRL_AND_Y 0x08 #define SCA3000_MD_CTRL_AND_Y BIT(3)
#define SCA3000_MD_CTRL_AND_X 0x10 #define SCA3000_MD_CTRL_AND_X BIT(4)
#define SAC3000_MD_CTRL_AND_Z 0x20 #define SAC3000_MD_CTRL_AND_Z BIT(5)
/* /*
* Some control registers of complex access methods requiring this register to * Some control registers of complex access methods requiring this register to
* be used to remove a lock. * be used to remove a lock.
*/ */
#define SCA3000_REG_ADDR_UNLOCK 0x1e #define SCA3000_REG_UNLOCK_ADDR 0x1e
#define SCA3000_REG_ADDR_INT_MASK 0x21 #define SCA3000_REG_INT_MASK_ADDR 0x21
#define SCA3000_INT_MASK_PROT_MASK 0x1C #define SCA3000_REG_INT_MASK_PROT_MASK 0x1C
#define SCA3000_INT_MASK_RING_THREE_QUARTER 0x80 #define SCA3000_REG_INT_MASK_RING_THREE_QUARTER BIT(7)
#define SCA3000_INT_MASK_RING_HALF 0x40 #define SCA3000_REG_INT_MASK_RING_HALF BIT(6)
#define SCA3000_INT_MASK_ALL_INTS 0x02
#define SCA3000_INT_MASK_ACTIVE_HIGH 0x01
#define SCA3000_INT_MASK_ACTIVE_LOW 0x00
#define SCA3000_REG_INT_MASK_ALL_INTS 0x02
#define SCA3000_REG_INT_MASK_ACTIVE_HIGH 0x01
#define SCA3000_REG_INT_MASK_ACTIVE_LOW 0x00
/* Values of multiplexed registers (write to ctrl_data after select) */ /* Values of multiplexed registers (write to ctrl_data after select) */
#define SCA3000_REG_ADDR_CTRL_DATA 0x22 #define SCA3000_REG_CTRL_DATA_ADDR 0x22
/* /*
* Measurement modes available on some sca3000 series chips. Code assumes others * Measurement modes available on some sca3000 series chips. Code assumes others
@ -146,9 +146,9 @@
* *
* Wide - Widen low-pass filtering of signal channel to increase bandwidth * Wide - Widen low-pass filtering of signal channel to increase bandwidth
*/ */
#define SCA3000_OP_MODE_BYPASS 0x01 #define SCA3000_OP_MODE_BYPASS 0x01
#define SCA3000_OP_MODE_NARROW 0x02 #define SCA3000_OP_MODE_NARROW 0x02
#define SCA3000_OP_MODE_WIDE 0x04 #define SCA3000_OP_MODE_WIDE 0x04
#define SCA3000_MAX_TX 6 #define SCA3000_MAX_TX 6
#define SCA3000_MAX_RX 2 #define SCA3000_MAX_RX 2
@ -288,7 +288,7 @@ static int sca3000_reg_lock_on(struct sca3000_state *st)
{ {
int ret; int ret;
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_STATUS, 1); ret = sca3000_read_data_short(st, SCA3000_REG_STATUS_ADDR, 1);
if (ret < 0) if (ret < 0)
return ret; return ret;
@ -318,11 +318,11 @@ static int __sca3000_unlock_reg_lock(struct sca3000_state *st)
.tx_buf = st->tx + 4, .tx_buf = st->tx + 4,
}, },
}; };
st->tx[0] = SCA3000_WRITE_REG(SCA3000_REG_ADDR_UNLOCK); st->tx[0] = SCA3000_WRITE_REG(SCA3000_REG_UNLOCK_ADDR);
st->tx[1] = 0x00; st->tx[1] = 0x00;
st->tx[2] = SCA3000_WRITE_REG(SCA3000_REG_ADDR_UNLOCK); st->tx[2] = SCA3000_WRITE_REG(SCA3000_REG_UNLOCK_ADDR);
st->tx[3] = 0x50; st->tx[3] = 0x50;
st->tx[4] = SCA3000_WRITE_REG(SCA3000_REG_ADDR_UNLOCK); st->tx[4] = SCA3000_WRITE_REG(SCA3000_REG_UNLOCK_ADDR);
st->tx[5] = 0xA0; st->tx[5] = 0xA0;
return spi_sync_transfer(st->us, xfer, ARRAY_SIZE(xfer)); return spi_sync_transfer(st->us, xfer, ARRAY_SIZE(xfer));
@ -354,12 +354,12 @@ static int sca3000_write_ctrl_reg(struct sca3000_state *st,
} }
/* Set the control select register */ /* Set the control select register */
ret = sca3000_write_reg(st, SCA3000_REG_ADDR_CTRL_SEL, sel); ret = sca3000_write_reg(st, SCA3000_REG_CTRL_SEL_ADDR, sel);
if (ret) if (ret)
goto error_ret; goto error_ret;
/* Write the actual value into the register */ /* Write the actual value into the register */
ret = sca3000_write_reg(st, SCA3000_REG_ADDR_CTRL_DATA, val); ret = sca3000_write_reg(st, SCA3000_REG_CTRL_DATA_ADDR, val);
error_ret: error_ret:
return ret; return ret;
@ -384,10 +384,10 @@ static int sca3000_read_ctrl_reg(struct sca3000_state *st,
goto error_ret; goto error_ret;
} }
/* Set the control select register */ /* Set the control select register */
ret = sca3000_write_reg(st, SCA3000_REG_ADDR_CTRL_SEL, ctrl_reg); ret = sca3000_write_reg(st, SCA3000_REG_CTRL_SEL_ADDR, ctrl_reg);
if (ret) if (ret)
goto error_ret; goto error_ret;
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_CTRL_DATA, 1); ret = sca3000_read_data_short(st, SCA3000_REG_CTRL_DATA_ADDR, 1);
if (ret) if (ret)
goto error_ret; goto error_ret;
return st->rx[0]; return st->rx[0];
@ -407,13 +407,13 @@ static ssize_t sca3000_show_rev(struct device *dev,
struct sca3000_state *st = iio_priv(indio_dev); struct sca3000_state *st = iio_priv(indio_dev);
mutex_lock(&st->lock); mutex_lock(&st->lock);
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_REVID, 1); ret = sca3000_read_data_short(st, SCA3000_REG_REVID_ADDR, 1);
if (ret < 0) if (ret < 0)
goto error_ret; goto error_ret;
len += sprintf(buf + len, len += sprintf(buf + len,
"major=%d, minor=%d\n", "major=%lu, minor=%lu\n",
st->rx[0] & SCA3000_REVID_MAJOR_MASK, st->rx[0] & SCA3000_REG_REVID_MAJOR_MASK,
st->rx[0] & SCA3000_REVID_MINOR_MASK); st->rx[0] & SCA3000_REG_REVID_MINOR_MASK);
error_ret: error_ret:
mutex_unlock(&st->lock); mutex_unlock(&st->lock);
@ -468,19 +468,19 @@ sca3000_show_measurement_mode(struct device *dev,
int len = 0, ret; int len = 0, ret;
mutex_lock(&st->lock); mutex_lock(&st->lock);
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1); ret = sca3000_read_data_short(st, SCA3000_REG_MODE_ADDR, 1);
if (ret) if (ret)
goto error_ret; goto error_ret;
/* mask bottom 2 bits - only ones that are relevant */ /* mask bottom 2 bits - only ones that are relevant */
st->rx[0] &= 0x03; st->rx[0] &= SCA3000_REG_MODE_MODE_MASK;
switch (st->rx[0]) { switch (st->rx[0]) {
case SCA3000_MEAS_MODE_NORMAL: case SCA3000_REG_MODE_MEAS_MODE_NORMAL:
len += sprintf(buf + len, "0 - normal mode\n"); len += sprintf(buf + len, "0 - normal mode\n");
break; break;
case SCA3000_MEAS_MODE_MOT_DET: case SCA3000_REG_MODE_MEAS_MODE_MOT_DET:
len += sprintf(buf + len, "3 - motion detection\n"); len += sprintf(buf + len, "3 - motion detection\n");
break; break;
case SCA3000_MEAS_MODE_OP_1: case SCA3000_REG_MODE_MEAS_MODE_OP_1:
switch (st->info->option_mode_1) { switch (st->info->option_mode_1) {
case SCA3000_OP_MODE_NARROW: case SCA3000_OP_MODE_NARROW:
len += sprintf(buf + len, "1 - narrow mode\n"); len += sprintf(buf + len, "1 - narrow mode\n");
@ -490,7 +490,7 @@ sca3000_show_measurement_mode(struct device *dev,
break; break;
} }
break; break;
case SCA3000_MEAS_MODE_OP_2: case SCA3000_REG_MODE_MEAS_MODE_OP_2:
switch (st->info->option_mode_2) { switch (st->info->option_mode_2) {
case SCA3000_OP_MODE_WIDE: case SCA3000_OP_MODE_WIDE:
len += sprintf(buf + len, "2 - wide mode\n"); len += sprintf(buf + len, "2 - wide mode\n");
@ -517,7 +517,6 @@ sca3000_store_measurement_mode(struct device *dev,
struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct sca3000_state *st = iio_priv(indio_dev); struct sca3000_state *st = iio_priv(indio_dev);
int ret; int ret;
u8 mask = 0x03;
u8 val; u8 val;
mutex_lock(&st->lock); mutex_lock(&st->lock);
@ -528,12 +527,12 @@ sca3000_store_measurement_mode(struct device *dev,
ret = -EINVAL; ret = -EINVAL;
goto error_ret; goto error_ret;
} }
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1); ret = sca3000_read_data_short(st, SCA3000_REG_MODE_ADDR, 1);
if (ret) if (ret)
goto error_ret; goto error_ret;
st->rx[0] &= ~mask; st->rx[0] &= ~SCA3000_REG_MODE_MODE_MASK;
st->rx[0] |= (val & mask); st->rx[0] |= (val & SCA3000_REG_MODE_MODE_MASK);
ret = sca3000_write_reg(st, SCA3000_REG_ADDR_MODE, st->rx[0]); ret = sca3000_write_reg(st, SCA3000_REG_MODE_ADDR, st->rx[0]);
if (ret) if (ret)
goto error_ret; goto error_ret;
mutex_unlock(&st->lock); mutex_unlock(&st->lock);
@ -638,11 +637,11 @@ static const struct iio_chan_spec sca3000_channels_with_temp[] = {
}; };
static u8 sca3000_addresses[3][3] = { static u8 sca3000_addresses[3][3] = {
[0] = {SCA3000_REG_ADDR_X_MSB, SCA3000_REG_CTRL_SEL_MD_X_TH, [0] = {SCA3000_REG_X_MSB_ADDR, SCA3000_REG_CTRL_SEL_MD_X_TH,
SCA3000_MD_CTRL_OR_X}, SCA3000_MD_CTRL_OR_X},
[1] = {SCA3000_REG_ADDR_Y_MSB, SCA3000_REG_CTRL_SEL_MD_Y_TH, [1] = {SCA3000_REG_Y_MSB_ADDR, SCA3000_REG_CTRL_SEL_MD_Y_TH,
SCA3000_MD_CTRL_OR_Y}, SCA3000_MD_CTRL_OR_Y},
[2] = {SCA3000_REG_ADDR_Z_MSB, SCA3000_REG_CTRL_SEL_MD_Z_TH, [2] = {SCA3000_REG_Z_MSB_ADDR, SCA3000_REG_CTRL_SEL_MD_Z_TH,
SCA3000_MD_CTRL_OR_Z}, SCA3000_MD_CTRL_OR_Z},
}; };
@ -657,17 +656,17 @@ static inline int __sca3000_get_base_freq(struct sca3000_state *st,
{ {
int ret; int ret;
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1); ret = sca3000_read_data_short(st, SCA3000_REG_MODE_ADDR, 1);
if (ret) if (ret)
goto error_ret; goto error_ret;
switch (0x03 & st->rx[0]) { switch (SCA3000_REG_MODE_MODE_MASK & st->rx[0]) {
case SCA3000_MEAS_MODE_NORMAL: case SCA3000_REG_MODE_MEAS_MODE_NORMAL:
*base_freq = info->measurement_mode_freq; *base_freq = info->measurement_mode_freq;
break; break;
case SCA3000_MEAS_MODE_OP_1: case SCA3000_REG_MODE_MEAS_MODE_OP_1:
*base_freq = info->option_mode_1_freq; *base_freq = info->option_mode_1_freq;
break; break;
case SCA3000_MEAS_MODE_OP_2: case SCA3000_REG_MODE_MEAS_MODE_OP_2:
*base_freq = info->option_mode_2_freq; *base_freq = info->option_mode_2_freq;
break; break;
default: default:
@ -695,12 +694,12 @@ static int read_raw_samp_freq(struct sca3000_state *st, int *val)
return ret; return ret;
if (*val > 0) { if (*val > 0) {
ret &= SCA3000_OUT_CTRL_BUF_DIV_MASK; ret &= SCA3000_REG_OUT_CTRL_BUF_DIV_MASK;
switch (ret) { switch (ret) {
case SCA3000_OUT_CTRL_BUF_DIV_2: case SCA3000_REG_OUT_CTRL_BUF_DIV_2:
*val /= 2; *val /= 2;
break; break;
case SCA3000_OUT_CTRL_BUF_DIV_4: case SCA3000_REG_OUT_CTRL_BUF_DIV_4:
*val /= 4; *val /= 4;
break; break;
} }
@ -726,12 +725,12 @@ static int write_raw_samp_freq(struct sca3000_state *st, int val)
if (ret < 0) if (ret < 0)
return ret; return ret;
ctrlval = ret & ~SCA3000_OUT_CTRL_BUF_DIV_MASK; ctrlval = ret & ~SCA3000_REG_OUT_CTRL_BUF_DIV_MASK;
if (val == base_freq / 2) if (val == base_freq / 2)
ctrlval |= SCA3000_OUT_CTRL_BUF_DIV_2; ctrlval |= SCA3000_REG_OUT_CTRL_BUF_DIV_2;
if (val == base_freq / 4) if (val == base_freq / 4)
ctrlval |= SCA3000_OUT_CTRL_BUF_DIV_4; ctrlval |= SCA3000_REG_OUT_CTRL_BUF_DIV_4;
else if (val != base_freq) else if (val != base_freq)
return -EINVAL; return -EINVAL;
@ -769,7 +768,7 @@ static int sca3000_read_raw(struct iio_dev *indio_dev,
} else { } else {
/* get the temperature when available */ /* get the temperature when available */
ret = sca3000_read_data_short(st, ret = sca3000_read_data_short(st,
SCA3000_REG_ADDR_TEMP_MSB, SCA3000_REG_TEMP_MSB_ADDR,
2); 2);
if (ret < 0) { if (ret < 0) {
mutex_unlock(&st->lock); mutex_unlock(&st->lock);
@ -840,26 +839,26 @@ static ssize_t sca3000_read_av_freq(struct device *dev,
int len = 0, ret, val; int len = 0, ret, val;
mutex_lock(&st->lock); mutex_lock(&st->lock);
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1); ret = sca3000_read_data_short(st, SCA3000_REG_MODE_ADDR, 1);
val = st->rx[0]; val = st->rx[0];
mutex_unlock(&st->lock); mutex_unlock(&st->lock);
if (ret) if (ret)
goto error_ret; goto error_ret;
switch (val & 0x03) { switch (val & SCA3000_REG_MODE_MODE_MASK) {
case SCA3000_MEAS_MODE_NORMAL: case SCA3000_REG_MODE_MEAS_MODE_NORMAL:
len += sprintf(buf + len, "%d %d %d\n", len += sprintf(buf + len, "%d %d %d\n",
st->info->measurement_mode_freq, st->info->measurement_mode_freq,
st->info->measurement_mode_freq / 2, st->info->measurement_mode_freq / 2,
st->info->measurement_mode_freq / 4); st->info->measurement_mode_freq / 4);
break; break;
case SCA3000_MEAS_MODE_OP_1: case SCA3000_REG_MODE_MEAS_MODE_OP_1:
len += sprintf(buf + len, "%d %d %d\n", len += sprintf(buf + len, "%d %d %d\n",
st->info->option_mode_1_freq, st->info->option_mode_1_freq,
st->info->option_mode_1_freq / 2, st->info->option_mode_1_freq / 2,
st->info->option_mode_1_freq / 4); st->info->option_mode_1_freq / 4);
break; break;
case SCA3000_MEAS_MODE_OP_2: case SCA3000_REG_MODE_MEAS_MODE_OP_2:
len += sprintf(buf + len, "%d %d %d\n", len += sprintf(buf + len, "%d %d %d\n",
st->info->option_mode_2_freq, st->info->option_mode_2_freq,
st->info->option_mode_2_freq / 2, st->info->option_mode_2_freq / 2,
@ -1006,8 +1005,9 @@ static void sca3000_ring_int_process(u8 val, struct iio_dev *indio_dev)
int ret, i, num_available; int ret, i, num_available;
mutex_lock(&st->lock); mutex_lock(&st->lock);
if (val & SCA3000_INT_STATUS_HALF) {
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_BUF_COUNT, if (val & SCA3000_REG_INT_STATUS_HALF) {
ret = sca3000_read_data_short(st, SCA3000_REG_BUF_COUNT_ADDR,
1); 1);
if (ret) if (ret)
goto error_ret; goto error_ret;
@ -1016,7 +1016,7 @@ static void sca3000_ring_int_process(u8 val, struct iio_dev *indio_dev)
* num_available is the total number of samples available * num_available is the total number of samples available
* i.e. number of time points * number of channels. * i.e. number of time points * number of channels.
*/ */
ret = sca3000_read_data(st, SCA3000_REG_ADDR_RING_OUT, st->rx, ret = sca3000_read_data(st, SCA3000_REG_RING_OUT_ADDR, st->rx,
num_available * 2); num_available * 2);
if (ret) if (ret)
goto error_ret; goto error_ret;
@ -1057,7 +1057,7 @@ static irqreturn_t sca3000_event_handler(int irq, void *private)
* but ensures no interrupt is missed. * but ensures no interrupt is missed.
*/ */
mutex_lock(&st->lock); mutex_lock(&st->lock);
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_STATUS, 1); ret = sca3000_read_data_short(st, SCA3000_REG_INT_STATUS_ADDR, 1);
val = st->rx[0]; val = st->rx[0];
mutex_unlock(&st->lock); mutex_unlock(&st->lock);
if (ret) if (ret)
@ -1115,19 +1115,18 @@ static int sca3000_read_event_config(struct iio_dev *indio_dev,
{ {
struct sca3000_state *st = iio_priv(indio_dev); struct sca3000_state *st = iio_priv(indio_dev);
int ret; int ret;
u8 protect_mask = 0x03;
int num = chan->channel2; int num = chan->channel2;
/* read current value of mode register */ /* read current value of mode register */
mutex_lock(&st->lock); mutex_lock(&st->lock);
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1); ret = sca3000_read_data_short(st, SCA3000_REG_MODE_ADDR, 1);
if (ret) if (ret)
goto error_ret; goto error_ret;
switch (chan->channel2) { switch (chan->channel2) {
case IIO_MOD_X_AND_Y_AND_Z: case IIO_MOD_X_AND_Y_AND_Z:
ret = !!(st->rx[0] & SCA3000_FREE_FALL_DETECT); ret = !!(st->rx[0] & SCA3000_REG_MODE_FREE_FALL_DETECT);
break; break;
case IIO_MOD_X: case IIO_MOD_X:
case IIO_MOD_Y: case IIO_MOD_Y:
@ -1136,7 +1135,8 @@ static int sca3000_read_event_config(struct iio_dev *indio_dev,
* Motion detection mode cannot run at the same time as * Motion detection mode cannot run at the same time as
* acceleration data being read. * acceleration data being read.
*/ */
if ((st->rx[0] & protect_mask) != SCA3000_MEAS_MODE_MOT_DET) { if ((st->rx[0] & SCA3000_REG_MODE_MODE_MASK)
!= SCA3000_REG_MODE_MEAS_MODE_MOT_DET) {
ret = 0; ret = 0;
} else { } else {
ret = sca3000_read_ctrl_reg(st, ret = sca3000_read_ctrl_reg(st,
@ -1163,18 +1163,18 @@ static int sca3000_freefall_set_state(struct iio_dev *indio_dev, int state)
int ret; int ret;
/* read current value of mode register */ /* read current value of mode register */
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1); ret = sca3000_read_data_short(st, SCA3000_REG_MODE_ADDR, 1);
if (ret) if (ret)
return ret; return ret;
/* if off and should be on */ /* if off and should be on */
if (state && !(st->rx[0] & SCA3000_FREE_FALL_DETECT)) if (state && !(st->rx[0] & SCA3000_REG_MODE_FREE_FALL_DETECT))
return sca3000_write_reg(st, SCA3000_REG_ADDR_MODE, return sca3000_write_reg(st, SCA3000_REG_MODE_ADDR,
st->rx[0] | SCA3000_FREE_FALL_DETECT); st->rx[0] | SCA3000_REG_MODE_FREE_FALL_DETECT);
/* if on and should be off */ /* if on and should be off */
else if (!state && (st->rx[0] & SCA3000_FREE_FALL_DETECT)) else if (!state && (st->rx[0] & SCA3000_REG_MODE_FREE_FALL_DETECT))
return sca3000_write_reg(st, SCA3000_REG_ADDR_MODE, return sca3000_write_reg(st, SCA3000_REG_MODE_ADDR,
st->rx[0] & ~SCA3000_FREE_FALL_DETECT); st->rx[0] & ~SCA3000_REG_MODE_FREE_FALL_DETECT);
else else
return 0; return 0;
} }
@ -1213,20 +1213,22 @@ static int sca3000_motion_detect_set_state(struct iio_dev *indio_dev, int axis,
} }
/* read current value of mode register */ /* read current value of mode register */
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1); ret = sca3000_read_data_short(st, SCA3000_REG_MODE_ADDR, 1);
if (ret) if (ret)
return ret; return ret;
/* if off and should be on */ /* if off and should be on */
if ((st->mo_det_use_count) && if ((st->mo_det_use_count) &&
((st->rx[0] & SCA3000_MODE_MASK) != SCA3000_MEAS_MODE_MOT_DET)) ((st->rx[0] & SCA3000_REG_MODE_MODE_MASK)
return sca3000_write_reg(st, SCA3000_REG_ADDR_MODE, != SCA3000_REG_MODE_MEAS_MODE_MOT_DET))
(st->rx[0] & ~SCA3000_MODE_MASK) return sca3000_write_reg(st, SCA3000_REG_MODE_ADDR,
| SCA3000_MEAS_MODE_MOT_DET); (st->rx[0] & ~SCA3000_REG_MODE_MODE_MASK)
| SCA3000_REG_MODE_MEAS_MODE_MOT_DET);
/* if on and should be off */ /* if on and should be off */
else if (!(st->mo_det_use_count) && else if (!(st->mo_det_use_count) &&
((st->rx[0] & SCA3000_MODE_MASK) == SCA3000_MEAS_MODE_MOT_DET)) ((st->rx[0] & SCA3000_REG_MODE_MODE_MASK)
return sca3000_write_reg(st, SCA3000_REG_ADDR_MODE, == SCA3000_REG_MODE_MEAS_MODE_MOT_DET))
st->rx[0] & SCA3000_MODE_MASK); return sca3000_write_reg(st, SCA3000_REG_MODE_ADDR,
st->rx[0] & SCA3000_REG_MODE_MODE_MASK);
else else
return 0; return 0;
} }
@ -1296,18 +1298,18 @@ int __sca3000_hw_ring_state_set(struct iio_dev *indio_dev, bool state)
int ret; int ret;
mutex_lock(&st->lock); mutex_lock(&st->lock);
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1); ret = sca3000_read_data_short(st, SCA3000_REG_MODE_ADDR, 1);
if (ret) if (ret)
goto error_ret; goto error_ret;
if (state) { if (state) {
dev_info(&indio_dev->dev, "supposedly enabling ring buffer\n"); dev_info(&indio_dev->dev, "supposedly enabling ring buffer\n");
ret = sca3000_write_reg(st, ret = sca3000_write_reg(st,
SCA3000_REG_ADDR_MODE, SCA3000_REG_MODE_ADDR,
(st->rx[0] | SCA3000_RING_BUF_ENABLE)); (st->rx[0] | SCA3000_REG_MODE_RING_BUF_ENABLE));
} else } else
ret = sca3000_write_reg(st, ret = sca3000_write_reg(st,
SCA3000_REG_ADDR_MODE, SCA3000_REG_MODE_ADDR,
(st->rx[0] & ~SCA3000_RING_BUF_ENABLE)); (st->rx[0] & ~SCA3000_REG_MODE_RING_BUF_ENABLE));
error_ret: error_ret:
mutex_unlock(&st->lock); mutex_unlock(&st->lock);
@ -1329,12 +1331,12 @@ static int sca3000_hw_ring_preenable(struct iio_dev *indio_dev)
mutex_lock(&st->lock); mutex_lock(&st->lock);
/* Enable the 50% full interrupt */ /* Enable the 50% full interrupt */
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_MASK, 1); ret = sca3000_read_data_short(st, SCA3000_REG_INT_MASK_ADDR, 1);
if (ret) if (ret)
goto error_unlock; goto error_unlock;
ret = sca3000_write_reg(st, ret = sca3000_write_reg(st,
SCA3000_REG_ADDR_INT_MASK, SCA3000_REG_INT_MASK_ADDR,
st->rx[0] | SCA3000_INT_MASK_RING_HALF); st->rx[0] | SCA3000_REG_INT_MASK_RING_HALF);
if (ret) if (ret)
goto error_unlock; goto error_unlock;
@ -1360,12 +1362,12 @@ static int sca3000_hw_ring_postdisable(struct iio_dev *indio_dev)
/* Disable the 50% full interrupt */ /* Disable the 50% full interrupt */
mutex_lock(&st->lock); mutex_lock(&st->lock);
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_MASK, 1); ret = sca3000_read_data_short(st, SCA3000_REG_INT_MASK_ADDR, 1);
if (ret) if (ret)
goto unlock; goto unlock;
ret = sca3000_write_reg(st, ret = sca3000_write_reg(st,
SCA3000_REG_ADDR_INT_MASK, SCA3000_REG_INT_MASK_ADDR,
st->rx[0] & ~SCA3000_INT_MASK_RING_HALF); st->rx[0] & ~SCA3000_REG_INT_MASK_RING_HALF);
unlock: unlock:
mutex_unlock(&st->lock); mutex_unlock(&st->lock);
return ret; return ret;
@ -1389,7 +1391,7 @@ static int sca3000_clean_setup(struct sca3000_state *st)
mutex_lock(&st->lock); mutex_lock(&st->lock);
/* Ensure all interrupts have been acknowledged */ /* Ensure all interrupts have been acknowledged */
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_STATUS, 1); ret = sca3000_read_data_short(st, SCA3000_REG_INT_STATUS_ADDR, 1);
if (ret) if (ret)
goto error_ret; goto error_ret;
@ -1407,21 +1409,21 @@ static int sca3000_clean_setup(struct sca3000_state *st)
if (ret < 0) if (ret < 0)
goto error_ret; goto error_ret;
ret = sca3000_write_ctrl_reg(st, SCA3000_REG_CTRL_SEL_OUT_CTRL, ret = sca3000_write_ctrl_reg(st, SCA3000_REG_CTRL_SEL_OUT_CTRL,
(ret & SCA3000_OUT_CTRL_PROT_MASK) (ret & SCA3000_REG_OUT_CTRL_PROT_MASK)
| SCA3000_OUT_CTRL_BUF_X_EN | SCA3000_REG_OUT_CTRL_BUF_X_EN
| SCA3000_OUT_CTRL_BUF_Y_EN | SCA3000_REG_OUT_CTRL_BUF_Y_EN
| SCA3000_OUT_CTRL_BUF_Z_EN | SCA3000_REG_OUT_CTRL_BUF_Z_EN
| SCA3000_OUT_CTRL_BUF_DIV_4); | SCA3000_REG_OUT_CTRL_BUF_DIV_4);
if (ret) if (ret)
goto error_ret; goto error_ret;
/* Enable interrupts, relevant to mode and set up as active low */ /* Enable interrupts, relevant to mode and set up as active low */
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_MASK, 1); ret = sca3000_read_data_short(st, SCA3000_REG_INT_MASK_ADDR, 1);
if (ret) if (ret)
goto error_ret; goto error_ret;
ret = sca3000_write_reg(st, ret = sca3000_write_reg(st,
SCA3000_REG_ADDR_INT_MASK, SCA3000_REG_INT_MASK_ADDR,
(ret & SCA3000_INT_MASK_PROT_MASK) (ret & SCA3000_REG_INT_MASK_PROT_MASK)
| SCA3000_INT_MASK_ACTIVE_LOW); | SCA3000_REG_INT_MASK_ACTIVE_LOW);
if (ret) if (ret)
goto error_ret; goto error_ret;
/* /*
@ -1429,10 +1431,10 @@ static int sca3000_clean_setup(struct sca3000_state *st)
* Ring in 12 bit mode - it is fine to overwrite reserved bits 3,5 * Ring in 12 bit mode - it is fine to overwrite reserved bits 3,5
* as that occurs in one of the example on the datasheet * as that occurs in one of the example on the datasheet
*/ */
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1); ret = sca3000_read_data_short(st, SCA3000_REG_MODE_ADDR, 1);
if (ret) if (ret)
goto error_ret; goto error_ret;
ret = sca3000_write_reg(st, SCA3000_REG_ADDR_MODE, ret = sca3000_write_reg(st, SCA3000_REG_MODE_ADDR,
(st->rx[0] & SCA3000_MODE_PROT_MASK)); (st->rx[0] & SCA3000_MODE_PROT_MASK));
error_ret: error_ret:
@ -1515,14 +1517,14 @@ static int sca3000_stop_all_interrupts(struct sca3000_state *st)
int ret; int ret;
mutex_lock(&st->lock); mutex_lock(&st->lock);
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_MASK, 1); ret = sca3000_read_data_short(st, SCA3000_REG_INT_MASK_ADDR, 1);
if (ret) if (ret)
goto error_ret; goto error_ret;
ret = sca3000_write_reg(st, SCA3000_REG_ADDR_INT_MASK, ret = sca3000_write_reg(st, SCA3000_REG_INT_MASK_ADDR,
(st->rx[0] & (st->rx[0] &
~(SCA3000_INT_MASK_RING_THREE_QUARTER | ~(SCA3000_REG_INT_MASK_RING_THREE_QUARTER |
SCA3000_INT_MASK_RING_HALF | SCA3000_REG_INT_MASK_RING_HALF |
SCA3000_INT_MASK_ALL_INTS))); SCA3000_REG_INT_MASK_ALL_INTS)));
error_ret: error_ret:
mutex_unlock(&st->lock); mutex_unlock(&st->lock);
return ret; return ret;