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Commit ad3eb9ab authored by Jonathan Cameron's avatar Jonathan Cameron Committed by Greg Kroah-Hartman
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staging:iio:accel:adis16204 move to chan_spec based setup. 

For clean drivers its easier to convert to chan_spec based
registration than to work around the scan_el attributes
going away.

Some minor cleanups done whilst here.

Untested.

V2: used IIO_CHAN macro
Signed-off-by: default avatarJonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent d37b24b3
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Showing with 220 additions and 259 deletions
drivers/staging/iio/accel/adis16204.h
View file @ ad3eb9ab
...@@ -82,7 +82,7 @@ struct adis16204_state { ...@@ -82,7 +82,7 @@ struct adis16204_state {
struct mutex buf_lock; struct mutex buf_lock;
}; };
int adis16204_set_irq(struct device *dev, bool enable); int adis16204_set_irq(struct iio_dev *indio_dev, bool enable);
#ifdef CONFIG_IIO_RING_BUFFER #ifdef CONFIG_IIO_RING_BUFFER
enum adis16204_scan { enum adis16204_scan {
...@@ -103,8 +103,6 @@ ssize_t adis16204_read_data_from_ring(struct device *dev, ...@@ -103,8 +103,6 @@ ssize_t adis16204_read_data_from_ring(struct device *dev,
int adis16204_configure_ring(struct iio_dev *indio_dev); int adis16204_configure_ring(struct iio_dev *indio_dev);
void adis16204_unconfigure_ring(struct iio_dev *indio_dev); void adis16204_unconfigure_ring(struct iio_dev *indio_dev);
int adis16204_initialize_ring(struct iio_ring_buffer *ring);
void adis16204_uninitialize_ring(struct iio_ring_buffer *ring);
#else /* CONFIG_IIO_RING_BUFFER */ #else /* CONFIG_IIO_RING_BUFFER */
static inline void adis16204_remove_trigger(struct iio_dev *indio_dev) static inline void adis16204_remove_trigger(struct iio_dev *indio_dev)
...@@ -133,14 +131,5 @@ static inline void adis16204_unconfigure_ring(struct iio_dev *indio_dev) ...@@ -133,14 +131,5 @@ static inline void adis16204_unconfigure_ring(struct iio_dev *indio_dev)
{ {
} }
static inline int adis16204_initialize_ring(struct iio_ring_buffer *ring)
{
return 0;
}
static inline void adis16204_uninitialize_ring(struct iio_ring_buffer *ring)
{
}
#endif /* CONFIG_IIO_RING_BUFFER */ #endif /* CONFIG_IIO_RING_BUFFER */
#endif /* SPI_ADIS16204_H_ */ #endif /* SPI_ADIS16204_H_ */
drivers/staging/iio/accel/adis16204_core.c
View file @ ad3eb9ab
...@@ -20,28 +20,25 @@ ...@@ -20,28 +20,25 @@
#include "../iio.h" #include "../iio.h"
#include "../sysfs.h" #include "../sysfs.h"
#include "../ring_generic.h"
#include "accel.h" #include "accel.h"
#include "../gyro/gyro.h"
#include "../adc/adc.h" #include "../adc/adc.h"
#include "adis16204.h" #include "adis16204.h"
#define DRIVER_NAME "adis16204" #define DRIVER_NAME "adis16204"
static int adis16204_check_status(struct device *dev);
/** /**
* adis16204_spi_write_reg_8() - write single byte to a register * adis16204_spi_write_reg_8() - write single byte to a register
* @dev: device associated with child of actual device (iio_dev or iio_trig) * @dev: device associated with child of actual device (iio_dev or iio_trig)
* @reg_address: the address of the register to be written * @reg_address: the address of the register to be written
* @val: the value to write * @val: the value to write
**/ **/
static int adis16204_spi_write_reg_8(struct device *dev, static int adis16204_spi_write_reg_8(struct iio_dev *indio_dev,
u8 reg_address, u8 reg_address,
u8 val) u8 val)
{ {
int ret; int ret;
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct adis16204_state *st = iio_dev_get_devdata(indio_dev); struct adis16204_state *st = iio_dev_get_devdata(indio_dev);
mutex_lock(&st->buf_lock); mutex_lock(&st->buf_lock);
...@@ -56,18 +53,17 @@ static int adis16204_spi_write_reg_8(struct device *dev, ...@@ -56,18 +53,17 @@ static int adis16204_spi_write_reg_8(struct device *dev,
/** /**
* adis16204_spi_write_reg_16() - write 2 bytes to a pair of registers * adis16204_spi_write_reg_16() - write 2 bytes to a pair of registers
* @dev: device associated with child of actual device (iio_dev or iio_trig) * @indio_dev: iio device associated with child of actual device
* @reg_address: the address of the lower of the two registers. Second register * @reg_address: the address of the lower of the two registers. Second register
* is assumed to have address one greater. * is assumed to have address one greater.
* @val: value to be written * @val: value to be written
**/ **/
static int adis16204_spi_write_reg_16(struct device *dev, static int adis16204_spi_write_reg_16(struct iio_dev *indio_dev,
u8 lower_reg_address, u8 lower_reg_address,
u16 value) u16 value)
{ {
int ret; int ret;
struct spi_message msg; struct spi_message msg;
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct adis16204_state *st = iio_dev_get_devdata(indio_dev); struct adis16204_state *st = iio_dev_get_devdata(indio_dev);
struct spi_transfer xfers[] = { struct spi_transfer xfers[] = {
{ {
...@@ -100,17 +96,16 @@ static int adis16204_spi_write_reg_16(struct device *dev, ...@@ -100,17 +96,16 @@ static int adis16204_spi_write_reg_16(struct device *dev,
/** /**
* adis16204_spi_read_reg_16() - read 2 bytes from a 16-bit register * adis16204_spi_read_reg_16() - read 2 bytes from a 16-bit register
* @dev: device associated with child of actual device (iio_dev or iio_trig) * @indio_dev: iio device associated with child of actual device
* @reg_address: the address of the lower of the two registers. Second register * @reg_address: the address of the lower of the two registers. Second register
* is assumed to have address one greater. * is assumed to have address one greater.
* @val: somewhere to pass back the value read * @val: somewhere to pass back the value read
**/ **/
static int adis16204_spi_read_reg_16(struct device *dev, static int adis16204_spi_read_reg_16(struct iio_dev *indio_dev,
u8 lower_reg_address, u8 lower_reg_address,
u16 *val) u16 *val)
{ {
struct spi_message msg; struct spi_message msg;
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct adis16204_state *st = iio_dev_get_devdata(indio_dev); struct adis16204_state *st = iio_dev_get_devdata(indio_dev);
int ret; int ret;
struct spi_transfer xfers[] = { struct spi_transfer xfers[] = {
...@@ -124,7 +119,6 @@ static int adis16204_spi_read_reg_16(struct device *dev, ...@@ -124,7 +119,6 @@ static int adis16204_spi_read_reg_16(struct device *dev,
.rx_buf = st->rx, .rx_buf = st->rx,
.bits_per_word = 8, .bits_per_word = 8,
.len = 2, .len = 2,
.cs_change = 1,
.delay_usecs = 20, .delay_usecs = 20,
}, },
}; };
...@@ -149,72 +143,31 @@ static int adis16204_spi_read_reg_16(struct device *dev, ...@@ -149,72 +143,31 @@ static int adis16204_spi_read_reg_16(struct device *dev,
return ret; return ret;
} }
static ssize_t adis16204_read_12bit_unsigned(struct device *dev, static int adis16204_check_status(struct iio_dev *indio_dev)
struct device_attribute *attr,
char *buf)
{ {
u16 status;
int ret; int ret;
u16 val = 0;
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
ret = adis16204_spi_read_reg_16(dev, this_attr->address, &val);
if (ret)
return ret;
if (val & ADIS16204_ERROR_ACTIVE)
adis16204_check_status(dev);
return sprintf(buf, "%u\n", val & 0x0FFF); ret = adis16204_spi_read_reg_16(indio_dev,
} ADIS16204_DIAG_STAT, &status);
if (ret < 0) {
static ssize_t adis16204_read_temp(struct device *dev, dev_err(&indio_dev->dev, "Reading status failed\n");
struct device_attribute *attr,
char *buf)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
ssize_t ret;
u16 val;
/* Take the iio_dev status lock */
mutex_lock(&indio_dev->mlock);
ret = adis16204_spi_read_reg_16(dev, ADIS16204_TEMP_OUT, (u16 *)&val);
if (ret)
goto error_ret; goto error_ret;
if (val & ADIS16204_ERROR_ACTIVE)
adis16204_check_status(dev);
val &= 0xFFF;
ret = sprintf(buf, "%d\n", val);
error_ret:
mutex_unlock(&indio_dev->mlock);
return ret;
}
static ssize_t adis16204_read_12bit_signed(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
s16 val = 0;
ssize_t ret;
mutex_lock(&indio_dev->mlock);
ret = adis16204_spi_read_reg_16(dev, this_attr->address, (u16 *)&val);
if (!ret) {
if (val & ADIS16204_ERROR_ACTIVE)
adis16204_check_status(dev);
val = ((s16)(val << 4) >> 4);
ret = sprintf(buf, "%d\n", val);
} }
ret = status & 0x1F;
mutex_unlock(&indio_dev->mlock); if (status & ADIS16204_DIAG_STAT_SELFTEST_FAIL)
dev_err(&indio_dev->dev, "Self test failure\n");
if (status & ADIS16204_DIAG_STAT_SPI_FAIL)
dev_err(&indio_dev->dev, "SPI failure\n");
if (status & ADIS16204_DIAG_STAT_FLASH_UPT)
dev_err(&indio_dev->dev, "Flash update failed\n");
if (status & ADIS16204_DIAG_STAT_POWER_HIGH)
dev_err(&indio_dev->dev, "Power supply above 3.625V\n");
if (status & ADIS16204_DIAG_STAT_POWER_LOW)
dev_err(&indio_dev->dev, "Power supply below 2.975V\n");
error_ret:
return ret; return ret;
} }
...@@ -229,10 +182,11 @@ static ssize_t adis16204_read_14bit_signed(struct device *dev, ...@@ -229,10 +182,11 @@ static ssize_t adis16204_read_14bit_signed(struct device *dev,
mutex_lock(&indio_dev->mlock); mutex_lock(&indio_dev->mlock);
ret = adis16204_spi_read_reg_16(dev, this_attr->address, (u16 *)&val); ret = adis16204_spi_read_reg_16(indio_dev,
this_attr->address, (u16 *)&val);
if (!ret) { if (!ret) {
if (val & ADIS16204_ERROR_ACTIVE) if (val & ADIS16204_ERROR_ACTIVE)
adis16204_check_status(dev); adis16204_check_status(indio_dev);
val = ((s16)(val << 2) >> 2); val = ((s16)(val << 2) >> 2);
ret = sprintf(buf, "%d\n", val); ret = sprintf(buf, "%d\n", val);
...@@ -243,32 +197,14 @@ static ssize_t adis16204_read_14bit_signed(struct device *dev, ...@@ -243,32 +197,14 @@ static ssize_t adis16204_read_14bit_signed(struct device *dev,
return ret; return ret;
} }
static ssize_t adis16204_write_16bit(struct device *dev, static int adis16204_reset(struct iio_dev *indio_dev)
struct device_attribute *attr,
const char *buf,
size_t len)
{ {
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
int ret; int ret;
long val; ret = adis16204_spi_write_reg_8(indio_dev,
ret = strict_strtol(buf, 10, &val);
if (ret)
goto error_ret;
ret = adis16204_spi_write_reg_16(dev, this_attr->address, val);
error_ret:
return ret ? ret : len;
}
static int adis16204_reset(struct device *dev)
{
int ret;
ret = adis16204_spi_write_reg_8(dev,
ADIS16204_GLOB_CMD, ADIS16204_GLOB_CMD,
ADIS16204_GLOB_CMD_SW_RESET); ADIS16204_GLOB_CMD_SW_RESET);
if (ret) if (ret)
dev_err(dev, "problem resetting device"); dev_err(&indio_dev->dev, "problem resetting device");
return ret; return ret;
} }
...@@ -277,23 +213,25 @@ static ssize_t adis16204_write_reset(struct device *dev, ...@@ -277,23 +213,25 @@ static ssize_t adis16204_write_reset(struct device *dev,
struct device_attribute *attr, struct device_attribute *attr,
const char *buf, size_t len) const char *buf, size_t len)
{ {
struct iio_dev *indio_dev = dev_get_drvdata(dev);
if (len < 1) if (len < 1)
return -EINVAL; return -EINVAL;
switch (buf[0]) { switch (buf[0]) {
case '1': case '1':
case 'y': case 'y':
case 'Y': case 'Y':
return adis16204_reset(dev); return adis16204_reset(indio_dev);
} }
return -EINVAL; return -EINVAL;
} }
int adis16204_set_irq(struct device *dev, bool enable) int adis16204_set_irq(struct iio_dev *indio_dev, bool enable)
{ {
int ret = 0; int ret = 0;
u16 msc; u16 msc;
ret = adis16204_spi_read_reg_16(dev, ADIS16204_MSC_CTRL, &msc); ret = adis16204_spi_read_reg_16(indio_dev, ADIS16204_MSC_CTRL, &msc);
if (ret) if (ret)
goto error_ret; goto error_ret;
...@@ -304,106 +242,63 @@ int adis16204_set_irq(struct device *dev, bool enable) ...@@ -304,106 +242,63 @@ int adis16204_set_irq(struct device *dev, bool enable)
else else
msc &= ~ADIS16204_MSC_CTRL_DATA_RDY_EN; msc &= ~ADIS16204_MSC_CTRL_DATA_RDY_EN;
ret = adis16204_spi_write_reg_16(dev, ADIS16204_MSC_CTRL, msc); ret = adis16204_spi_write_reg_16(indio_dev, ADIS16204_MSC_CTRL, msc);
error_ret: error_ret:
return ret; return ret;
} }
static int adis16204_check_status(struct device *dev) static int adis16204_self_test(struct iio_dev *indio_dev)
{ {
u16 status;
int ret; int ret;
ret = adis16204_spi_write_reg_16(indio_dev,
ret = adis16204_spi_read_reg_16(dev, ADIS16204_DIAG_STAT, &status);
if (ret < 0) {
dev_err(dev, "Reading status failed\n");
goto error_ret;
}
ret = status & 0x1F;
if (status & ADIS16204_DIAG_STAT_SELFTEST_FAIL)
dev_err(dev, "Self test failure\n");
if (status & ADIS16204_DIAG_STAT_SPI_FAIL)
dev_err(dev, "SPI failure\n");
if (status & ADIS16204_DIAG_STAT_FLASH_UPT)
dev_err(dev, "Flash update failed\n");
if (status & ADIS16204_DIAG_STAT_POWER_HIGH)
dev_err(dev, "Power supply above 3.625V\n");
if (status & ADIS16204_DIAG_STAT_POWER_LOW)
dev_err(dev, "Power supply below 2.975V\n");
error_ret:
return ret;
}
static int adis16204_self_test(struct device *dev)
{
int ret;
ret = adis16204_spi_write_reg_16(dev,
ADIS16204_MSC_CTRL, ADIS16204_MSC_CTRL,
ADIS16204_MSC_CTRL_SELF_TEST_EN); ADIS16204_MSC_CTRL_SELF_TEST_EN);
if (ret) { if (ret) {
dev_err(dev, "problem starting self test"); dev_err(&indio_dev->dev, "problem starting self test");
goto err_ret; goto err_ret;
} }
adis16204_check_status(dev); adis16204_check_status(indio_dev);
err_ret: err_ret:
return ret; return ret;
} }
static int adis16204_initial_setup(struct adis16204_state *st) static int adis16204_initial_setup(struct iio_dev *indio_dev)
{ {
int ret; int ret;
struct device *dev = &st->indio_dev->dev;
/* Disable IRQ */ /* Disable IRQ */
ret = adis16204_set_irq(dev, false); ret = adis16204_set_irq(indio_dev, false);
if (ret) { if (ret) {
dev_err(dev, "disable irq failed"); dev_err(&indio_dev->dev, "disable irq failed");
goto err_ret; goto err_ret;
} }
/* Do self test */ /* Do self test */
ret = adis16204_self_test(dev); ret = adis16204_self_test(indio_dev);
if (ret) { if (ret) {
dev_err(dev, "self test failure"); dev_err(&indio_dev->dev, "self test failure");
goto err_ret; goto err_ret;
} }
/* Read status register to check the result */ /* Read status register to check the result */
ret = adis16204_check_status(dev); ret = adis16204_check_status(indio_dev);
if (ret) { if (ret) {
adis16204_reset(dev); adis16204_reset(indio_dev);
dev_err(dev, "device not playing ball -> reset"); dev_err(&indio_dev->dev, "device not playing ball -> reset");
msleep(ADIS16204_STARTUP_DELAY); msleep(ADIS16204_STARTUP_DELAY);
ret = adis16204_check_status(dev); ret = adis16204_check_status(indio_dev);
if (ret) { if (ret) {
dev_err(dev, "giving up"); dev_err(&indio_dev->dev, "giving up");
goto err_ret; goto err_ret;
} }
} }
printk(KERN_INFO DRIVER_NAME ": at CS%d (irq %d)\n",
st->us->chip_select, st->us->irq);
err_ret: err_ret:
return ret; return ret;
} }
static IIO_DEV_ATTR_IN_NAMED_RAW(0, supply, adis16204_read_12bit_unsigned,
ADIS16204_SUPPLY_OUT);
static IIO_CONST_ATTR(in0_supply_scale, "0.00122");
static IIO_DEV_ATTR_IN_RAW(1, adis16204_read_12bit_unsigned,
ADIS16204_AUX_ADC);
static IIO_CONST_ATTR(in1_scale, "0.00061");
static IIO_DEV_ATTR_ACCEL_X(adis16204_read_14bit_signed,
ADIS16204_XACCL_OUT);
static IIO_DEV_ATTR_ACCEL_Y(adis16204_read_14bit_signed,
ADIS16204_YACCL_OUT);
static IIO_DEV_ATTR_ACCEL_XY(adis16204_read_14bit_signed, static IIO_DEV_ATTR_ACCEL_XY(adis16204_read_14bit_signed,
ADIS16204_XY_RSS_OUT); ADIS16204_XY_RSS_OUT);
static IIO_DEV_ATTR_ACCEL_XPEAK(adis16204_read_14bit_signed, static IIO_DEV_ATTR_ACCEL_XPEAK(adis16204_read_14bit_signed,
...@@ -412,43 +307,164 @@ static IIO_DEV_ATTR_ACCEL_YPEAK(adis16204_read_14bit_signed, ...@@ -412,43 +307,164 @@ static IIO_DEV_ATTR_ACCEL_YPEAK(adis16204_read_14bit_signed,
ADIS16204_Y_PEAK_OUT); ADIS16204_Y_PEAK_OUT);
static IIO_DEV_ATTR_ACCEL_XYPEAK(adis16204_read_14bit_signed, static IIO_DEV_ATTR_ACCEL_XYPEAK(adis16204_read_14bit_signed,
ADIS16204_XY_PEAK_OUT); ADIS16204_XY_PEAK_OUT);
static IIO_DEV_ATTR_ACCEL_X_OFFSET(S_IWUSR | S_IRUGO,
adis16204_read_12bit_signed,
adis16204_write_16bit,
ADIS16204_XACCL_NULL);
static IIO_DEV_ATTR_ACCEL_Y_OFFSET(S_IWUSR | S_IRUGO,
adis16204_read_12bit_signed,
adis16204_write_16bit,
ADIS16204_YACCL_NULL);
static IIO_CONST_ATTR(accel_x_scale, "0.017125");
static IIO_CONST_ATTR(accel_y_scale, "0.008407");
static IIO_CONST_ATTR(accel_xy_scale, "0.017125"); static IIO_CONST_ATTR(accel_xy_scale, "0.017125");
static IIO_DEV_ATTR_TEMP_RAW(adis16204_read_temp);
static IIO_CONST_ATTR(temp_offset, "25");
static IIO_CONST_ATTR(temp_scale, "-0.47");
static IIO_DEVICE_ATTR(reset, S_IWUSR, NULL, adis16204_write_reset, 0); static IIO_DEVICE_ATTR(reset, S_IWUSR, NULL, adis16204_write_reset, 0);
enum adis16204_channel {
in_supply,
in_aux,
temp,
accel_x,
accel_y,
};
static u8 adis16204_addresses[5][2] = {
[in_supply] = { ADIS16204_SUPPLY_OUT },
[in_aux] = { ADIS16204_AUX_ADC },
[temp] = { ADIS16204_TEMP_OUT },
[accel_x] = { ADIS16204_XACCL_OUT, ADIS16204_XACCL_NULL },
[accel_y] = { ADIS16204_XACCL_OUT, ADIS16204_YACCL_NULL },
};
static int adis16204_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int *val, int *val2,
long mask)
{
int ret;
int bits;
u8 addr;
s16 val16;
switch (mask) {
case 0:
mutex_lock(&indio_dev->mlock);
addr = adis16204_addresses[chan->address][0];
ret = adis16204_spi_read_reg_16(indio_dev, addr, &val16);
if (ret)
return ret;
if (val16 & ADIS16204_ERROR_ACTIVE) {
ret = adis16204_check_status(indio_dev);
if (ret)
return ret;
}
val16 = val16 & ((1 << chan->scan_type.realbits) - 1);
if (chan->scan_type.sign == 's')
val16 = (s16)(val16 <<
(16 - chan->scan_type.realbits)) >>
(16 - chan->scan_type.realbits);
*val = val16;
mutex_unlock(&indio_dev->mlock);
return IIO_VAL_INT;
case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
switch (chan->type) {
case IIO_IN:
*val = 0;
if (chan->channel == 0)
*val2 = 1220;
else
*val2 = 610;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_TEMP:
*val = 0;
*val2 = -470000;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_ACCEL:
*val = 0;
if (chan->channel == 'x')
*val2 = 17125;
else
*val2 = 8407;
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
break;
case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
*val = 25;
return IIO_VAL_INT;
case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
switch (chan->type) {
case IIO_ACCEL:
bits = 12;
break;
default:
return -EINVAL;
};
mutex_lock(&indio_dev->mlock);
addr = adis16204_addresses[chan->address][1];
ret = adis16204_spi_read_reg_16(indio_dev, addr, &val16);
if (ret) {
mutex_unlock(&indio_dev->mlock);
return ret;
}
val16 &= (1 << bits) - 1;
val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
*val = val16;
mutex_unlock(&indio_dev->mlock);
return IIO_VAL_INT;
}
return -EINVAL;
}
static int adis16204_write_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int val,
int val2,
long mask)
{
int bits;
s16 val16;
u8 addr;
switch (mask) {
case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
switch (chan->type) {
case IIO_ACCEL:
bits = 12;
break;
default:
return -EINVAL;
};
val16 = val & ((1 << bits) - 1);
addr = adis16204_addresses[chan->address][1];
return adis16204_spi_write_reg_16(indio_dev, addr, val16);
}
return -EINVAL;
}
static struct iio_chan_spec adis16204_channels[] = {
IIO_CHAN(IIO_IN, 0, 0, 0, "supply", 0, 0,
(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
in_supply, ADIS16204_SCAN_SUPPLY,
IIO_ST('u', 12, 16, 0), 0),
IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 1, 0,
(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
in_aux, ADIS16204_SCAN_AUX_ADC,
IIO_ST('u', 12, 16, 0), 0),
IIO_CHAN(IIO_TEMP, 0, 1, 0, NULL, 0, 0,
(1 << IIO_CHAN_INFO_SCALE_SEPARATE) |
(1 << IIO_CHAN_INFO_OFFSET_SEPARATE),
temp, ADIS16204_SCAN_TEMP,
IIO_ST('u', 12, 16, 0), 0),
IIO_CHAN(IIO_ACCEL, 1, 0, 0, NULL, 0, IIO_MOD_X,
(1 << IIO_CHAN_INFO_SCALE_SEPARATE) |
(1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE),
accel_x, ADIS16204_SCAN_ACC_X,
IIO_ST('s', 14, 16, 0), 0),
IIO_CHAN(IIO_ACCEL, 1, 0, 0, NULL, 0, IIO_MOD_Y,
(1 << IIO_CHAN_INFO_SCALE_SEPARATE) |
(1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE),
accel_y, ADIS16204_SCAN_ACC_Y,
IIO_ST('s', 14, 16, 0), 0),
IIO_CHAN_SOFT_TIMESTAMP(5),
};
static struct attribute *adis16204_attributes[] = { static struct attribute *adis16204_attributes[] = {
&iio_dev_attr_in0_supply_raw.dev_attr.attr,
&iio_const_attr_in0_supply_scale.dev_attr.attr,
&iio_dev_attr_temp_raw.dev_attr.attr,
&iio_const_attr_temp_offset.dev_attr.attr,
&iio_const_attr_temp_scale.dev_attr.attr,
&iio_dev_attr_reset.dev_attr.attr, &iio_dev_attr_reset.dev_attr.attr,
&iio_dev_attr_in1_raw.dev_attr.attr,
&iio_const_attr_in1_scale.dev_attr.attr,
&iio_dev_attr_accel_x_raw.dev_attr.attr,
&iio_dev_attr_accel_y_raw.dev_attr.attr,
&iio_dev_attr_accel_xy.dev_attr.attr, &iio_dev_attr_accel_xy.dev_attr.attr,
&iio_dev_attr_accel_xpeak.dev_attr.attr, &iio_dev_attr_accel_xpeak.dev_attr.attr,
&iio_dev_attr_accel_ypeak.dev_attr.attr, &iio_dev_attr_accel_ypeak.dev_attr.attr,
&iio_dev_attr_accel_xypeak.dev_attr.attr, &iio_dev_attr_accel_xypeak.dev_attr.attr,
&iio_dev_attr_accel_x_offset.dev_attr.attr,
&iio_dev_attr_accel_y_offset.dev_attr.attr,
&iio_const_attr_accel_x_scale.dev_attr.attr,
&iio_const_attr_accel_y_scale.dev_attr.attr,
&iio_const_attr_accel_xy_scale.dev_attr.attr, &iio_const_attr_accel_xy_scale.dev_attr.attr,
NULL NULL
}; };
...@@ -491,6 +507,10 @@ static int __devinit adis16204_probe(struct spi_device *spi) ...@@ -491,6 +507,10 @@ static int __devinit adis16204_probe(struct spi_device *spi)
st->indio_dev->name = spi->dev.driver->name; st->indio_dev->name = spi->dev.driver->name;
st->indio_dev->dev.parent = &spi->dev; st->indio_dev->dev.parent = &spi->dev;
st->indio_dev->attrs = &adis16204_attribute_group; st->indio_dev->attrs = &adis16204_attribute_group;
st->indio_dev->channels = adis16204_channels;
st->indio_dev->num_channels = ARRAY_SIZE(adis16204_channels);
st->indio_dev->read_raw = &adis16204_read_raw;
st->indio_dev->write_raw = &adis16204_write_raw;
st->indio_dev->dev_data = (void *)(st); st->indio_dev->dev_data = (void *)(st);
st->indio_dev->driver_module = THIS_MODULE; st->indio_dev->driver_module = THIS_MODULE;
st->indio_dev->modes = INDIO_DIRECT_MODE; st->indio_dev->modes = INDIO_DIRECT_MODE;
...@@ -504,7 +524,9 @@ static int __devinit adis16204_probe(struct spi_device *spi) ...@@ -504,7 +524,9 @@ static int __devinit adis16204_probe(struct spi_device *spi)
goto error_unreg_ring_funcs; goto error_unreg_ring_funcs;
regdone = 1; regdone = 1;
ret = adis16204_initialize_ring(st->indio_dev->ring); ret = iio_ring_buffer_register_ex(st->indio_dev->ring, 0,
adis16204_channels,
ARRAY_SIZE(adis16204_channels));
if (ret) { if (ret) {
printk(KERN_ERR "failed to initialize the ring\n"); printk(KERN_ERR "failed to initialize the ring\n");
goto error_unreg_ring_funcs; goto error_unreg_ring_funcs;
...@@ -517,7 +539,7 @@ static int __devinit adis16204_probe(struct spi_device *spi) ...@@ -517,7 +539,7 @@ static int __devinit adis16204_probe(struct spi_device *spi)
} }
/* Get the device into a sane initial state */ /* Get the device into a sane initial state */
ret = adis16204_initial_setup(st); ret = adis16204_initial_setup(st->indio_dev);
if (ret) if (ret)
goto error_remove_trigger; goto error_remove_trigger;
return 0; return 0;
...@@ -525,7 +547,7 @@ static int __devinit adis16204_probe(struct spi_device *spi) ...@@ -525,7 +547,7 @@ static int __devinit adis16204_probe(struct spi_device *spi)
error_remove_trigger: error_remove_trigger:
adis16204_remove_trigger(st->indio_dev); adis16204_remove_trigger(st->indio_dev);
error_uninitialize_ring: error_uninitialize_ring:
adis16204_uninitialize_ring(st->indio_dev->ring); iio_ring_buffer_unregister(st->indio_dev->ring);
error_unreg_ring_funcs: error_unreg_ring_funcs:
adis16204_unconfigure_ring(st->indio_dev); adis16204_unconfigure_ring(st->indio_dev);
error_free_dev: error_free_dev:
...@@ -548,10 +570,8 @@ static int adis16204_remove(struct spi_device *spi) ...@@ -548,10 +570,8 @@ static int adis16204_remove(struct spi_device *spi)
struct adis16204_state *st = spi_get_drvdata(spi); struct adis16204_state *st = spi_get_drvdata(spi);
struct iio_dev *indio_dev = st->indio_dev; struct iio_dev *indio_dev = st->indio_dev;
flush_scheduled_work();
adis16204_remove_trigger(indio_dev); adis16204_remove_trigger(indio_dev);
adis16204_uninitialize_ring(indio_dev->ring); iio_ring_buffer_unregister(st->indio_dev->ring);
iio_device_unregister(indio_dev); iio_device_unregister(indio_dev);
adis16204_unconfigure_ring(indio_dev); adis16204_unconfigure_ring(indio_dev);
kfree(st->tx); kfree(st->tx);
...@@ -583,5 +603,5 @@ static __exit void adis16204_exit(void) ...@@ -583,5 +603,5 @@ static __exit void adis16204_exit(void)
module_exit(adis16204_exit); module_exit(adis16204_exit);
MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
MODULE_DESCRIPTION("Analog Devices ADIS16204 Programmable High-g Digital Impact Sensor and Recorder"); MODULE_DESCRIPTION("ADIS16204 High-g Digital Impact Sensor and Recorder");
MODULE_LICENSE("GPL v2"); MODULE_LICENSE("GPL v2");
drivers/staging/iio/accel/adis16204_ring.c
View file @ ad3eb9ab
...@@ -17,44 +17,6 @@ ...@@ -17,44 +17,6 @@
#include "../trigger.h" #include "../trigger.h"
#include "adis16204.h" #include "adis16204.h"
static IIO_SCAN_EL_C(in_supply, ADIS16204_SCAN_SUPPLY, ADIS16204_SUPPLY_OUT, NULL);
static IIO_CONST_ATTR_SCAN_EL_TYPE(in_supply, u, 12, 16);
static IIO_SCAN_EL_C(accel_x, ADIS16204_SCAN_ACC_X, ADIS16204_XACCL_OUT, NULL);
static IIO_SCAN_EL_C(accel_y, ADIS16204_SCAN_ACC_Y, ADIS16204_YACCL_OUT, NULL);
static IIO_CONST_ATTR_SCAN_EL_TYPE(accel, s, 14, 16);
static IIO_SCAN_EL_C(in0, ADIS16204_SCAN_AUX_ADC, ADIS16204_AUX_ADC, NULL);
static IIO_CONST_ATTR_SCAN_EL_TYPE(in0, u, 12, 16);
static IIO_SCAN_EL_C(temp, ADIS16204_SCAN_TEMP, ADIS16204_TEMP_OUT, NULL);
static IIO_CONST_ATTR_SCAN_EL_TYPE(temp, u, 12, 16);
static IIO_SCAN_EL_TIMESTAMP(5);
static IIO_CONST_ATTR_SCAN_EL_TYPE(timestamp, s, 64, 64);
static struct attribute *adis16204_scan_el_attrs[] = {
&iio_scan_el_in_supply.dev_attr.attr,
&iio_const_attr_in_supply_index.dev_attr.attr,
&iio_const_attr_in_supply_type.dev_attr.attr,
&iio_scan_el_accel_x.dev_attr.attr,
&iio_const_attr_accel_x_index.dev_attr.attr,
&iio_scan_el_accel_y.dev_attr.attr,
&iio_const_attr_accel_y_index.dev_attr.attr,
&iio_const_attr_accel_type.dev_attr.attr,
&iio_scan_el_in0.dev_attr.attr,
&iio_const_attr_in0_index.dev_attr.attr,
&iio_const_attr_in0_type.dev_attr.attr,
&iio_scan_el_temp.dev_attr.attr,
&iio_const_attr_temp_index.dev_attr.attr,
&iio_const_attr_temp_type.dev_attr.attr,
&iio_scan_el_timestamp.dev_attr.attr,
&iio_const_attr_timestamp_index.dev_attr.attr,
&iio_const_attr_timestamp_type.dev_attr.attr,
NULL,
};
static struct attribute_group adis16204_scan_el_group = {
.attrs = adis16204_scan_el_attrs,
.name = "scan_elements",
};
/** /**
* adis16204_read_ring_data() read data registers which will be placed into ring * adis16204_read_ring_data() read data registers which will be placed into ring
* @dev: device associated with child of actual device (iio_dev or iio_trig) * @dev: device associated with child of actual device (iio_dev or iio_trig)
...@@ -80,7 +42,8 @@ static int adis16204_read_ring_data(struct device *dev, u8 *rx) ...@@ -80,7 +42,8 @@ static int adis16204_read_ring_data(struct device *dev, u8 *rx)
xfers[i].len = 2; xfers[i].len = 2;
xfers[i].delay_usecs = 20; xfers[i].delay_usecs = 20;
xfers[i].tx_buf = st->tx + 2 * i; xfers[i].tx_buf = st->tx + 2 * i;
st->tx[2 * i] = ADIS16204_READ_REG(ADIS16204_SUPPLY_OUT + 2 * i); st->tx[2 * i]
= ADIS16204_READ_REG(ADIS16204_SUPPLY_OUT + 2 * i);
st->tx[2 * i + 1] = 0; st->tx[2 * i + 1] = 0;
if (i >= 1) if (i >= 1)
xfers[i].rx_buf = rx + 2 * (i - 1); xfers[i].rx_buf = rx + 2 * (i - 1);
...@@ -154,7 +117,6 @@ int adis16204_configure_ring(struct iio_dev *indio_dev) ...@@ -154,7 +117,6 @@ int adis16204_configure_ring(struct iio_dev *indio_dev)
/* Effectively select the ring buffer implementation */ /* Effectively select the ring buffer implementation */
iio_ring_sw_register_funcs(&ring->access); iio_ring_sw_register_funcs(&ring->access);
ring->bpe = 2; ring->bpe = 2;
ring->scan_el_attrs = &adis16204_scan_el_group;
ring->scan_timestamp = true; ring->scan_timestamp = true;
ring->preenable = &iio_sw_ring_preenable; ring->preenable = &iio_sw_ring_preenable;
ring->postenable = &iio_triggered_ring_postenable; ring->postenable = &iio_triggered_ring_postenable;
...@@ -162,11 +124,11 @@ int adis16204_configure_ring(struct iio_dev *indio_dev) ...@@ -162,11 +124,11 @@ int adis16204_configure_ring(struct iio_dev *indio_dev)
ring->owner = THIS_MODULE; ring->owner = THIS_MODULE;
/* Set default scan mode */ /* Set default scan mode */
iio_scan_mask_set(ring, iio_scan_el_in_supply.number); iio_scan_mask_set(ring, ADIS16204_SCAN_SUPPLY);
iio_scan_mask_set(ring, iio_scan_el_accel_x.number); iio_scan_mask_set(ring, ADIS16204_SCAN_ACC_X);
iio_scan_mask_set(ring, iio_scan_el_accel_y.number); iio_scan_mask_set(ring, ADIS16204_SCAN_ACC_Y);
iio_scan_mask_set(ring, iio_scan_el_temp.number); iio_scan_mask_set(ring, ADIS16204_SCAN_AUX_ADC);
iio_scan_mask_set(ring, iio_scan_el_in0.number); iio_scan_mask_set(ring, ADIS16204_SCAN_TEMP);
indio_dev->pollfunc = kzalloc(sizeof(*indio_dev->pollfunc), GFP_KERNEL); indio_dev->pollfunc = kzalloc(sizeof(*indio_dev->pollfunc), GFP_KERNEL);
if (indio_dev->pollfunc == NULL) { if (indio_dev->pollfunc == NULL) {
...@@ -193,13 +155,3 @@ int adis16204_configure_ring(struct iio_dev *indio_dev) ...@@ -193,13 +155,3 @@ int adis16204_configure_ring(struct iio_dev *indio_dev)
iio_sw_rb_free(indio_dev->ring); iio_sw_rb_free(indio_dev->ring);
return ret; return ret;
} }
int adis16204_initialize_ring(struct iio_ring_buffer *ring)
{
return iio_ring_buffer_register(ring, 0);
}
void adis16204_uninitialize_ring(struct iio_ring_buffer *ring)
{
iio_ring_buffer_unregister(ring);
}
drivers/staging/iio/accel/adis16204_trigger.c
View file @ ad3eb9ab
...@@ -33,7 +33,7 @@ static int adis16204_data_rdy_trigger_set_state(struct iio_trigger *trig, ...@@ -33,7 +33,7 @@ static int adis16204_data_rdy_trigger_set_state(struct iio_trigger *trig,
struct iio_dev *indio_dev = st->indio_dev; struct iio_dev *indio_dev = st->indio_dev;
dev_dbg(&indio_dev->dev, "%s (%d)\n", __func__, state); dev_dbg(&indio_dev->dev, "%s (%d)\n", __func__, state);
return adis16204_set_irq(&st->indio_dev->dev, state); return adis16204_set_irq(st->indio_dev, state);
} }
int adis16204_probe_trigger(struct iio_dev *indio_dev) int adis16204_probe_trigger(struct iio_dev *indio_dev)
......
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