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staging:iio:adc:ad799x: Convert to new channel registration method. 

Convert to new channel registration method
Update copyright header
Add missing call to iio_trigger_notify_done()

V2: IIO_CHAN macro updates

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Michael Hennerich 2011-05-18 14:41:52 +01:00 committed by Greg Kroah-Hartman
parent f39e086adc
commit d22fd9c553
3 changed files with 206 additions and 319 deletions
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25
drivers/staging/iio/adc/ad799x.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2010 Michael Hennerich, Analog Devices Inc.
* Copyright (C) 2010-2011 Michael Hennerich, Analog Devices Inc.
* Copyright (C) 2008-2010 Jonathan Cameron
*
* This program is free software; you can redistribute it and/or modify
@ -67,6 +67,8 @@
#define AD7997_8_READ_SINGLE 0x80
#define AD7997_8_READ_SEQUENCE 0x70
/* TODO: move this into a common header */
#define RES_MASK(bits) ((1 << (bits)) - 1)
enum {
ad7991,
@ -83,30 +85,21 @@ struct ad799x_state;
/**
* struct ad799x_chip_info - chip specifc information
* @num_inputs: number of physical inputs on chip
* @bits: accuracy of the adc in bits
* @channel: channel specification
* @num_channels: number of channels
* @int_vref_mv: the internal reference voltage
* @monitor_mode: whether the chip supports monitor interrupts
* @default_config: device default configuration
* @dev_attrs: pointer to the device attribute group
* @scan_attrs: pointer to the scan element attribute group
* @event_attrs: pointer to the monitor event attribute group
* @ad799x_set_scan_mode: function pointer to the device specific mode function
*/
struct ad799x_chip_info {
u8 num_inputs;
u8 bits;
u8 storagebits;
char sign;
struct iio_chan_spec channel[9];
int num_channels;
u16 int_vref_mv;
bool monitor_mode;
u16 default_config;
struct attribute_group *dev_attrs;
struct attribute_group *scan_attrs;
struct attribute_group *event_attrs;
int (*ad799x_set_scan_mode) (struct ad799x_state *st,
unsigned mask);
};
struct ad799x_state {
@ -130,7 +123,7 @@ struct ad799x_platform_data {
u16 vref_mv;
};
int ad799x_set_scan_mode(struct ad799x_state *st, unsigned mask);
int ad7997_8_set_scan_mode(struct ad799x_state *st, unsigned mask);
#ifdef CONFIG_AD799X_RING_BUFFER
int ad799x_single_channel_from_ring(struct ad799x_state *st, long mask);

491
drivers/staging/iio/adc/ad799x_core.c
View File

@ -1,6 +1,6 @@
/*
* iio/adc/ad799x.c
* Copyright (C) 2010 Michael Hennerich, Analog Devices Inc.
* Copyright (C) 2010-1011 Michael Hennerich, Analog Devices Inc.
*
* based on iio/adc/max1363
* Copyright (C) 2008-2010 Jonathan Cameron
@ -100,130 +100,77 @@ static int ad799x_i2c_write8(struct ad799x_state *st, u8 reg, u8 data)
return ret;
}
static int ad799x_scan_el_set_state(struct iio_scan_el *scan_el,
struct iio_dev *indio_dev,
bool state)
{
struct ad799x_state *st = indio_dev->dev_data;
return ad799x_set_scan_mode(st, st->indio_dev->ring->scan_mask);
}
/* Here we claim all are 16 bits. This currently does no harm and saves
* us a lot of scan element listings */
#define AD799X_SCAN_EL(number) \
IIO_SCAN_EL_C(in##number, number, 0, ad799x_scan_el_set_state);
static AD799X_SCAN_EL(0);
static AD799X_SCAN_EL(1);
static AD799X_SCAN_EL(2);
static AD799X_SCAN_EL(3);
static AD799X_SCAN_EL(4);
static AD799X_SCAN_EL(5);
static AD799X_SCAN_EL(6);
static AD799X_SCAN_EL(7);
static IIO_SCAN_EL_TIMESTAMP(8);
static IIO_CONST_ATTR_SCAN_EL_TYPE(timestamp, s, 64, 64)
static ssize_t ad799x_show_type(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct iio_ring_buffer *ring = dev_get_drvdata(dev);
struct iio_dev *indio_dev = ring->indio_dev;
struct ad799x_state *st = indio_dev->dev_data;
return sprintf(buf, "%c%d/%d\n", st->chip_info->sign,
st->chip_info->bits, AD799X_STORAGEBITS);
}
static IIO_DEVICE_ATTR(in_type, S_IRUGO, ad799x_show_type, NULL, 0);
static int ad7991_5_9_set_scan_mode(struct ad799x_state *st, unsigned mask)
{
return i2c_smbus_write_byte(st->client,
st->config | (mask << AD799X_CHANNEL_SHIFT));
}
static int ad7992_3_4_set_scan_mode(struct ad799x_state *st, unsigned mask)
{
return ad799x_i2c_write8(st, AD7998_CONF_REG,
st->config | (mask << AD799X_CHANNEL_SHIFT));
}
static int ad7997_8_set_scan_mode(struct ad799x_state *st, unsigned mask)
int ad7997_8_set_scan_mode(struct ad799x_state *st, unsigned mask)
{
return ad799x_i2c_write16(st, AD7998_CONF_REG,
st->config | (mask << AD799X_CHANNEL_SHIFT));
}
int ad799x_set_scan_mode(struct ad799x_state *st, unsigned mask)
static int ad799x_scan_direct(struct ad799x_state *st, unsigned ch)
{
u16 rxbuf;
u8 cmd;
int ret;
if (st->chip_info->ad799x_set_scan_mode != NULL) {
ret = st->chip_info->ad799x_set_scan_mode(st, mask);
return (ret > 0) ? 0 : ret;
switch (st->id) {
case ad7991:
case ad7995:
case ad7999:
cmd = st->config | ((1 << ch) << AD799X_CHANNEL_SHIFT);
break;
case ad7992:
case ad7993:
case ad7994:
cmd = (1 << ch) << AD799X_CHANNEL_SHIFT;
break;
case ad7997:
case ad7998:
cmd = (ch << AD799X_CHANNEL_SHIFT) | AD7997_8_READ_SINGLE;
break;
default:
return -EINVAL;
}
return 0;
ret = ad799x_i2c_read16(st, cmd, &rxbuf);
if (ret < 0)
return ret;
return rxbuf;
}
static ssize_t ad799x_read_single_channel(struct device *dev,
struct device_attribute *attr,
char *buf)
static int ad799x_read_raw(struct iio_dev *dev_info,
struct iio_chan_spec const *chan,
int *val,
int *val2,
long m)
{
struct iio_dev *dev_info = dev_get_drvdata(dev);
struct ad799x_state *st = iio_dev_get_devdata(dev_info);
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
int ret = 0, len = 0;
u32 data ;
u16 rxbuf[1];
u8 cmd;
long mask;
int ret;
struct ad799x_state *st = dev_info->dev_data;
unsigned int scale_uv;
switch (m) {
case 0:
mutex_lock(&dev_info->mlock);
if (iio_ring_enabled(dev_info))
ret = ad799x_single_channel_from_ring(st,
1 << chan->address);
else
ret = ad799x_scan_direct(st, chan->address);
mutex_unlock(&dev_info->mlock);
mutex_lock(&dev_info->mlock);
mask = 1 << this_attr->address;
/* If ring buffer capture is occurring, query the buffer */
if (iio_ring_enabled(dev_info)) {
data = ret = ad799x_single_channel_from_ring(st, mask);
if (ret < 0)
goto error_ret;
ret = 0;
} else {
switch (st->id) {
case ad7991:
case ad7995:
case ad7999:
cmd = st->config | (mask << AD799X_CHANNEL_SHIFT);
break;
case ad7992:
case ad7993:
case ad7994:
cmd = mask << AD799X_CHANNEL_SHIFT;
break;
case ad7997:
case ad7998:
cmd = (this_attr->address <<
AD799X_CHANNEL_SHIFT) | AD7997_8_READ_SINGLE;
break;
default:
cmd = 0;
}
ret = ad799x_i2c_read16(st, cmd, rxbuf);
if (ret < 0)
goto error_ret;
data = rxbuf[0];
return ret;
*val = (ret >> st->chip_info->channel[0].scan_type.shift) &
RES_MASK(st->chip_info->channel[0].scan_type.realbits);
return IIO_VAL_INT;
case (1 << IIO_CHAN_INFO_SCALE_SHARED):
scale_uv = (st->int_vref_mv * 1000)
>> st->chip_info->channel[0].scan_type.realbits;
*val = scale_uv / 1000;
*val2 = (scale_uv % 1000) * 1000;
return IIO_VAL_INT_PLUS_MICRO;
}
/* Pretty print the result */
len = sprintf(buf, "%u\n", data & ((1 << (st->chip_info->bits)) - 1));
error_ret:
mutex_unlock(&dev_info->mlock);
return ret ? ret : len;
return -EINVAL;
}
static ssize_t ad799x_read_frequency(struct device *dev,
@ -331,7 +278,6 @@ static ssize_t ad799x_write_frequency(struct device *dev,
return ret ? ret : len;
}
static ssize_t ad799x_read_channel_config(struct device *dev,
struct device_attribute *attr,
char *buf)
@ -400,140 +346,6 @@ static irqreturn_t ad799x_event_handler(int irq, void *private)
return IRQ_HANDLED;
}
/* Direct read attribtues */
static IIO_DEV_ATTR_IN_RAW(0, ad799x_read_single_channel, 0);
static IIO_DEV_ATTR_IN_RAW(1, ad799x_read_single_channel, 1);
static IIO_DEV_ATTR_IN_RAW(2, ad799x_read_single_channel, 2);
static IIO_DEV_ATTR_IN_RAW(3, ad799x_read_single_channel, 3);
static IIO_DEV_ATTR_IN_RAW(4, ad799x_read_single_channel, 4);
static IIO_DEV_ATTR_IN_RAW(5, ad799x_read_single_channel, 5);
static IIO_DEV_ATTR_IN_RAW(6, ad799x_read_single_channel, 6);
static IIO_DEV_ATTR_IN_RAW(7, ad799x_read_single_channel, 7);
static ssize_t ad799x_show_scale(struct device *dev,
struct device_attribute *attr,
char *buf)
{
/* Driver currently only support internal vref */
struct iio_dev *dev_info = dev_get_drvdata(dev);
struct ad799x_state *st = iio_dev_get_devdata(dev_info);
/* Corresponds to Vref / 2^(bits) */
unsigned int scale_uv = (st->int_vref_mv * 1000) >> st->chip_info->bits;
return sprintf(buf, "%d.%03d\n", scale_uv / 1000, scale_uv % 1000);
}
static IIO_DEVICE_ATTR(in_scale, S_IRUGO, ad799x_show_scale, NULL, 0);
static struct attribute *ad7991_5_9_3_4_device_attrs[] = {
&iio_dev_attr_in0_raw.dev_attr.attr,
&iio_dev_attr_in1_raw.dev_attr.attr,
&iio_dev_attr_in2_raw.dev_attr.attr,
&iio_dev_attr_in3_raw.dev_attr.attr,
&iio_dev_attr_in_scale.dev_attr.attr,
NULL
};
static struct attribute_group ad7991_5_9_3_4_dev_attr_group = {
.attrs = ad7991_5_9_3_4_device_attrs,
};
static struct attribute *ad7991_5_9_3_4_scan_el_attrs[] = {
&iio_scan_el_in0.dev_attr.attr,
&iio_const_attr_in0_index.dev_attr.attr,
&iio_scan_el_in1.dev_attr.attr,
&iio_const_attr_in1_index.dev_attr.attr,
&iio_scan_el_in2.dev_attr.attr,
&iio_const_attr_in2_index.dev_attr.attr,
&iio_scan_el_in3.dev_attr.attr,
&iio_const_attr_in3_index.dev_attr.attr,
&iio_const_attr_timestamp_index.dev_attr.attr,
&iio_scan_el_timestamp.dev_attr.attr,
&iio_const_attr_timestamp_type.dev_attr.attr,
&iio_dev_attr_in_type.dev_attr.attr,
NULL,
};
static struct attribute_group ad7991_5_9_3_4_scan_el_group = {
.name = "scan_elements",
.attrs = ad7991_5_9_3_4_scan_el_attrs,
};
static struct attribute *ad7992_device_attrs[] = {
&iio_dev_attr_in0_raw.dev_attr.attr,
&iio_dev_attr_in1_raw.dev_attr.attr,
&iio_dev_attr_in_scale.dev_attr.attr,
NULL
};
static struct attribute_group ad7992_dev_attr_group = {
.attrs = ad7992_device_attrs,
};
static struct attribute *ad7992_scan_el_attrs[] = {
&iio_scan_el_in0.dev_attr.attr,
&iio_const_attr_in0_index.dev_attr.attr,
&iio_scan_el_in1.dev_attr.attr,
&iio_const_attr_in1_index.dev_attr.attr,
&iio_const_attr_timestamp_index.dev_attr.attr,
&iio_scan_el_timestamp.dev_attr.attr,
&iio_const_attr_timestamp_type.dev_attr.attr,
&iio_dev_attr_in_type.dev_attr.attr,
NULL,
};
static struct attribute_group ad7992_scan_el_group = {
.name = "scan_elements",
.attrs = ad7992_scan_el_attrs,
};
static struct attribute *ad7997_8_device_attrs[] = {
&iio_dev_attr_in0_raw.dev_attr.attr,
&iio_dev_attr_in1_raw.dev_attr.attr,
&iio_dev_attr_in2_raw.dev_attr.attr,
&iio_dev_attr_in3_raw.dev_attr.attr,
&iio_dev_attr_in4_raw.dev_attr.attr,
&iio_dev_attr_in5_raw.dev_attr.attr,
&iio_dev_attr_in6_raw.dev_attr.attr,
&iio_dev_attr_in7_raw.dev_attr.attr,
&iio_dev_attr_in_scale.dev_attr.attr,
NULL
};
static struct attribute_group ad7997_8_dev_attr_group = {
.attrs = ad7997_8_device_attrs,
};
static struct attribute *ad7997_8_scan_el_attrs[] = {
&iio_scan_el_in0.dev_attr.attr,
&iio_const_attr_in0_index.dev_attr.attr,
&iio_scan_el_in1.dev_attr.attr,
&iio_const_attr_in1_index.dev_attr.attr,
&iio_scan_el_in2.dev_attr.attr,
&iio_const_attr_in2_index.dev_attr.attr,
&iio_scan_el_in3.dev_attr.attr,
&iio_const_attr_in3_index.dev_attr.attr,
&iio_scan_el_in4.dev_attr.attr,
&iio_const_attr_in4_index.dev_attr.attr,
&iio_scan_el_in5.dev_attr.attr,
&iio_const_attr_in5_index.dev_attr.attr,
&iio_scan_el_in6.dev_attr.attr,
&iio_const_attr_in6_index.dev_attr.attr,
&iio_scan_el_in7.dev_attr.attr,
&iio_const_attr_in7_index.dev_attr.attr,
&iio_const_attr_timestamp_index.dev_attr.attr,
&iio_scan_el_timestamp.dev_attr.attr,
&iio_const_attr_timestamp_type.dev_attr.attr,
&iio_dev_attr_in_type.dev_attr.attr,
NULL,
};
static struct attribute_group ad7997_8_scan_el_group = {
.name = "scan_elements",
.attrs = ad7997_8_scan_el_attrs,
};
static IIO_DEVICE_ATTR(in0_thresh_low_value,
S_IRUGO | S_IWUSR,
ad799x_read_channel_config,
@ -651,91 +463,173 @@ static struct attribute_group ad7992_event_attrs_group = {
static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
[ad7991] = {
.num_inputs = 4,
.bits = 12,
.sign = IIO_SCAN_EL_TYPE_UNSIGNED,
.channel[0] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 0, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
0, 0, IIO_ST('u', 12, 16, 0), 0),
.channel[1] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 1, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
1, 1, IIO_ST('u', 12, 16, 0), 0),
.channel[2] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 2, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
2, 2, IIO_ST('u', 12, 16, 0), 0),
.channel[3] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 3, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
3, 3, IIO_ST('u', 12, 16, 0), 0),
.channel[4] = IIO_CHAN_SOFT_TIMESTAMP(4),
.num_channels = 5,
.int_vref_mv = 4096,
.dev_attrs = &ad7991_5_9_3_4_dev_attr_group,
.scan_attrs = &ad7991_5_9_3_4_scan_el_group,
.ad799x_set_scan_mode = ad7991_5_9_set_scan_mode,
},
[ad7995] = {
.num_inputs = 4,
.bits = 10,
.sign = IIO_SCAN_EL_TYPE_UNSIGNED,
.channel[0] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 0, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
0, 0, IIO_ST('u', 10, 16, 0), 0),
.channel[1] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 1, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
1, 1, IIO_ST('u', 10, 16, 0), 0),
.channel[2] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 2, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
2, 2, IIO_ST('u', 10, 16, 0), 0),
.channel[3] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 3, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
3, 3, IIO_ST('u', 10, 16, 0), 0),
.channel[4] = IIO_CHAN_SOFT_TIMESTAMP(4),
.num_channels = 5,
.int_vref_mv = 1024,
.dev_attrs = &ad7991_5_9_3_4_dev_attr_group,
.scan_attrs = &ad7991_5_9_3_4_scan_el_group,
.ad799x_set_scan_mode = ad7991_5_9_set_scan_mode,
},
[ad7999] = {
.num_inputs = 4,
.bits = 10,
.sign = IIO_SCAN_EL_TYPE_UNSIGNED,
.channel[0] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 0, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
0, 0, IIO_ST('u', 10, 16, 0), 0),
.channel[1] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 1, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
1, 1, IIO_ST('u', 10, 16, 0), 0),
.channel[2] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 2, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
2, 2, IIO_ST('u', 10, 16, 0), 0),
.channel[3] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 3, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
3, 3, IIO_ST('u', 10, 16, 0), 0),
.channel[4] = IIO_CHAN_SOFT_TIMESTAMP(4),
.num_channels = 5,
.int_vref_mv = 1024,
.dev_attrs = &ad7991_5_9_3_4_dev_attr_group,
.scan_attrs = &ad7991_5_9_3_4_scan_el_group,
.ad799x_set_scan_mode = ad7991_5_9_set_scan_mode,
},
[ad7992] = {
.num_inputs = 2,
.bits = 12,
.sign = IIO_SCAN_EL_TYPE_UNSIGNED,
.channel[0] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 0, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
0, 0, IIO_ST('u', 12, 16, 0), 0),
.channel[1] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 1, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
1, 1, IIO_ST('u', 12, 16, 0), 0),
.channel[2] = IIO_CHAN_SOFT_TIMESTAMP(2),
.num_channels = 3,
.int_vref_mv = 4096,
.monitor_mode = true,
.default_config = AD7998_ALERT_EN,
.dev_attrs = &ad7992_dev_attr_group,
.scan_attrs = &ad7992_scan_el_group,
.event_attrs = &ad7992_event_attrs_group,
.ad799x_set_scan_mode = ad7992_3_4_set_scan_mode,
},
[ad7993] = {
.num_inputs = 4,
.bits = 10,
.sign = IIO_SCAN_EL_TYPE_UNSIGNED,
.channel[0] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 0, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
0, 0, IIO_ST('u', 10, 16, 0), 0),
.channel[1] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 1, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
1, 1, IIO_ST('u', 10, 16, 0), 0),
.channel[2] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 2, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
2, 2, IIO_ST('u', 10, 16, 0), 0),
.channel[3] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 3, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
3, 3, IIO_ST('u', 10, 16, 0), 0),
.channel[4] = IIO_CHAN_SOFT_TIMESTAMP(4),
.num_channels = 5,
.int_vref_mv = 1024,
.monitor_mode = true,
.default_config = AD7998_ALERT_EN,
.dev_attrs = &ad7991_5_9_3_4_dev_attr_group,
.scan_attrs = &ad7991_5_9_3_4_scan_el_group,
.event_attrs = &ad7993_4_7_8_event_attrs_group,
.ad799x_set_scan_mode = ad7992_3_4_set_scan_mode,
},
[ad7994] = {
.num_inputs = 4,
.bits = 12,
.sign = IIO_SCAN_EL_TYPE_UNSIGNED,
.channel[0] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 0, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
0, 0, IIO_ST('u', 12, 16, 0), 0),
.channel[1] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 1, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
1, 1, IIO_ST('u', 12, 16, 0), 0),
.channel[2] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 2, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
2, 2, IIO_ST('u', 12, 16, 0), 0),
.channel[3] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 3, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
3, 3, IIO_ST('u', 12, 16, 0), 0),
.channel[4] = IIO_CHAN_SOFT_TIMESTAMP(4),
.num_channels = 5,
.int_vref_mv = 4096,
.monitor_mode = true,
.default_config = AD7998_ALERT_EN,
.dev_attrs = &ad7991_5_9_3_4_dev_attr_group,
.scan_attrs = &ad7991_5_9_3_4_scan_el_group,
.event_attrs = &ad7993_4_7_8_event_attrs_group,
.ad799x_set_scan_mode = ad7992_3_4_set_scan_mode,
},
[ad7997] = {
.num_inputs = 8,
.bits = 10,
.sign = IIO_SCAN_EL_TYPE_UNSIGNED,
.channel[0] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 0, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
0, 0, IIO_ST('u', 10, 16, 0), 0),
.channel[1] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 1, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
1, 1, IIO_ST('u', 10, 16, 0), 0),
.channel[2] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 2, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
2, 2, IIO_ST('u', 10, 16, 0), 0),
.channel[3] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 3, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
3, 3, IIO_ST('u', 10, 16, 0), 0),
.channel[4] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 4, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
4, 4, IIO_ST('u', 10, 16, 0), 0),
.channel[5] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 5, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
5, 5, IIO_ST('u', 10, 16, 0), 0),
.channel[6] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 6, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
6, 6, IIO_ST('u', 10, 16, 0), 0),
.channel[7] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 7, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
7, 7, IIO_ST('u', 10, 16, 0), 0),
.channel[8] = IIO_CHAN_SOFT_TIMESTAMP(8),
.num_channels = 9,
.int_vref_mv = 1024,
.monitor_mode = true,
.default_config = AD7998_ALERT_EN,
.dev_attrs = &ad7997_8_dev_attr_group,
.scan_attrs = &ad7997_8_scan_el_group,
.event_attrs = &ad7993_4_7_8_event_attrs_group,
.ad799x_set_scan_mode = ad7997_8_set_scan_mode,
},
[ad7998] = {
.num_inputs = 8,
.bits = 12,
.sign = IIO_SCAN_EL_TYPE_UNSIGNED,
.channel[0] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 0, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
0, 0, IIO_ST('u', 12, 16, 0), 0),
.channel[1] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 1, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
1, 1, IIO_ST('u', 12, 16, 0), 0),
.channel[2] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 2, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
2, 2, IIO_ST('u', 12, 16, 0), 0),
.channel[3] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 3, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
3, 3, IIO_ST('u', 12, 16, 0), 0),
.channel[4] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 4, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
4, 4, IIO_ST('u', 12, 16, 0), 0),
.channel[5] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 5, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
5, 5, IIO_ST('u', 12, 16, 0), 0),
.channel[6] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 6, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
6, 6, IIO_ST('u', 12, 16, 0), 0),
.channel[7] = IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 7, 0,
(1 << IIO_CHAN_INFO_SCALE_SHARED),
7, 7, IIO_ST('u', 12, 16, 0), 0),
.channel[8] = IIO_CHAN_SOFT_TIMESTAMP(8),
.num_channels = 9,
.int_vref_mv = 4096,
.monitor_mode = true,
.default_config = AD7998_ALERT_EN,
.dev_attrs = &ad7997_8_dev_attr_group,
.scan_attrs = &ad7997_8_scan_el_group,
.event_attrs = &ad7993_4_7_8_event_attrs_group,
.ad799x_set_scan_mode = ad7997_8_set_scan_mode,
},
};
@ -778,19 +672,16 @@ static int __devinit ad799x_probe(struct i2c_client *client,
goto error_disable_reg;
}
/* Estabilish that the iio_dev is a child of the i2c device */
st->indio_dev->dev.parent = &client->dev;
st->indio_dev->attrs = st->chip_info->dev_attrs;
st->indio_dev->event_attrs = st->chip_info->event_attrs;
st->indio_dev->name = id->name;
st->indio_dev->dev_data = (void *)(st);
st->indio_dev->driver_module = THIS_MODULE;
st->indio_dev->modes = INDIO_DIRECT_MODE;
st->indio_dev->num_interrupt_lines = 1;
ret = ad799x_set_scan_mode(st, 0);
if (ret)
goto error_free_device;
st->indio_dev->channels = st->chip_info->channel;
st->indio_dev->num_channels = st->chip_info->num_channels;
st->indio_dev->read_raw = &ad799x_read_raw;
ret = ad799x_register_ring_funcs_and_init(st->indio_dev);
if (ret)
@ -801,7 +692,9 @@ static int __devinit ad799x_probe(struct i2c_client *client,
goto error_cleanup_ring;
regdone = 1;
ret = iio_ring_buffer_register(st->indio_dev->ring, 0);
ret = iio_ring_buffer_register_ex(st->indio_dev->ring, 0,
st->indio_dev->channels,
st->indio_dev->num_channels);
if (ret)
goto error_cleanup_ring;

9
drivers/staging/iio/adc/ad799x_ring.c
View File

@ -80,7 +80,7 @@ static int ad799x_ring_preenable(struct iio_dev *indio_dev)
*/
if (st->id == ad7997 || st->id == ad7998)
ad799x_set_scan_mode(st, ring->scan_mask);
ad7997_8_set_scan_mode(st, ring->scan_mask);
st->d_size = ring->scan_count * 2;
@ -119,7 +119,7 @@ static irqreturn_t ad799x_trigger_handler(int irq, void *p)
rxbuf = kmalloc(st->d_size, GFP_KERNEL);
if (rxbuf == NULL)
return -ENOMEM;
goto out;
switch (st->id) {
case ad7991:
@ -157,6 +157,9 @@ static irqreturn_t ad799x_trigger_handler(int irq, void *p)
kfree(rxbuf);
if (b_sent < 0)
return b_sent;
out:
iio_trigger_notify_done(indio_dev->trig);
return IRQ_HANDLED;
}
@ -195,8 +198,6 @@ int ad799x_register_ring_funcs_and_init(struct iio_dev *indio_dev)
indio_dev->ring->predisable = &iio_triggered_ring_predisable;
indio_dev->ring->scan_timestamp = true;
indio_dev->ring->scan_el_attrs = st->chip_info->scan_attrs;
/* Flag that polled ring buffering is possible */
indio_dev->modes |= INDIO_RING_TRIGGERED;
return 0;