31
31
struct iio_dev *indio_dev = dev_get_drvdata(dev);
32
struct ade7754_state *st = iio_dev_get_devdata(indio_dev);
32
struct ade7754_state *st = iio_priv(indio_dev);
34
34
mutex_lock(&st->buf_lock);
35
35
st->tx[0] = ADE7754_WRITE_REG(reg_address);
49
49
struct iio_dev *indio_dev = dev_get_drvdata(dev);
50
struct ade7754_state *st = iio_dev_get_devdata(indio_dev);
50
struct ade7754_state *st = iio_priv(indio_dev);
52
52
mutex_lock(&st->buf_lock);
53
53
st->tx[0] = ADE7754_WRITE_REG(reg_address);
66
66
struct iio_dev *indio_dev = dev_get_drvdata(dev);
67
struct ade7754_state *st = iio_dev_get_devdata(indio_dev);
67
struct ade7754_state *st = iio_priv(indio_dev);
70
70
ret = spi_w8r8(st->us, ADE7754_READ_REG(reg_address));
85
85
struct iio_dev *indio_dev = dev_get_drvdata(dev);
86
struct ade7754_state *st = iio_dev_get_devdata(indio_dev);
86
struct ade7754_state *st = iio_priv(indio_dev);
89
89
ret = spi_w8r16(st->us, ADE7754_READ_REG(reg_address));
388
388
return ade7754_spi_write_reg_8(dev, ADE7754_OPMODE, val);
391
static int ade7754_initial_setup(struct ade7754_state *st)
391
static int ade7754_initial_setup(struct iio_dev *indio_dev)
394
struct device *dev = &st->indio_dev->dev;
394
struct ade7754_state *st = iio_priv(indio_dev);
395
struct device *dev = &indio_dev->dev;
396
397
/* use low spi speed for init */
397
398
st->us->mode = SPI_MODE_3;
471
472
return ret ? ret : len;
473
474
static IIO_DEV_ATTR_TEMP_RAW(ade7754_read_8bit);
474
static IIO_CONST_ATTR(temp_offset, "129 C");
475
static IIO_CONST_ATTR(temp_scale, "4 C");
475
static IIO_CONST_ATTR(in_temp_offset, "129 C");
476
static IIO_CONST_ATTR(in_temp_scale, "4 C");
477
478
static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
478
479
ade7754_read_frequency,
483
484
static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("26000 13000 65000 33000");
485
486
static struct attribute *ade7754_attributes[] = {
486
&iio_dev_attr_temp_raw.dev_attr.attr,
487
&iio_const_attr_temp_offset.dev_attr.attr,
488
&iio_const_attr_temp_scale.dev_attr.attr,
487
&iio_dev_attr_in_temp_raw.dev_attr.attr,
488
&iio_const_attr_in_temp_offset.dev_attr.attr,
489
&iio_const_attr_in_temp_scale.dev_attr.attr,
489
490
&iio_dev_attr_sampling_frequency.dev_attr.attr,
490
491
&iio_const_attr_sampling_frequency_available.dev_attr.attr,
491
492
&iio_dev_attr_reset.dev_attr.attr,
535
536
static int __devinit ade7754_probe(struct spi_device *spi)
537
int ret, regdone = 0;
538
struct ade7754_state *st = kzalloc(sizeof *st, GFP_KERNEL);
539
struct ade7754_state *st;
540
struct iio_dev *indio_dev;
542
/* setup the industrialio driver allocated elements */
543
indio_dev = iio_allocate_device(sizeof(*st));
544
if (indio_dev == NULL) {
543
548
/* this is only used for removal purposes */
544
spi_set_drvdata(spi, st);
549
spi_set_drvdata(spi, indio_dev);
546
/* Allocate the comms buffers */
547
st->rx = kzalloc(sizeof(*st->rx)*ADE7754_MAX_RX, GFP_KERNEL);
548
if (st->rx == NULL) {
552
st->tx = kzalloc(sizeof(*st->tx)*ADE7754_MAX_TX, GFP_KERNEL);
553
if (st->tx == NULL) {
551
st = iio_priv(indio_dev);
558
553
mutex_init(&st->buf_lock);
559
/* setup the industrialio driver allocated elements */
560
st->indio_dev = iio_allocate_device(0);
561
if (st->indio_dev == NULL) {
566
st->indio_dev->name = spi->dev.driver->name;
567
st->indio_dev->dev.parent = &spi->dev;
568
st->indio_dev->info = &ade7754_info;
569
st->indio_dev->dev_data = (void *)(st);
570
st->indio_dev->modes = INDIO_DIRECT_MODE;
572
ret = iio_device_register(st->indio_dev);
555
indio_dev->name = spi->dev.driver->name;
556
indio_dev->dev.parent = &spi->dev;
557
indio_dev->info = &ade7754_info;
558
indio_dev->modes = INDIO_DIRECT_MODE;
577
560
/* Get the device into a sane initial state */
578
ret = ade7754_initial_setup(st);
561
ret = ade7754_initial_setup(indio_dev);
564
ret = iio_device_register(indio_dev);
585
iio_device_unregister(st->indio_dev);
587
iio_free_device(st->indio_dev);
571
iio_free_device(indio_dev);
599
578
static int ade7754_remove(struct spi_device *spi)
602
struct ade7754_state *st = spi_get_drvdata(spi);
603
struct iio_dev *indio_dev = st->indio_dev;
581
struct iio_dev *indio_dev = spi_get_drvdata(spi);
583
iio_device_unregister(indio_dev);
605
584
ret = ade7754_stop_device(&(indio_dev->dev));
609
iio_device_unregister(indio_dev);
588
iio_free_device(indio_dev);
620
595
static struct spi_driver ade7754_driver = {