staging:iio:accel:lis3l02dq ring->buffer renames.
This driver already supports kfifo usage, so the term ring is misleading and hence replaced. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jonathan Cameron
Greg Kroah-Hartman
parent
14555b1445
commit
6ddbb08af0
|
|
@ -175,19 +175,19 @@ int lis3l02dq_spi_write_reg_8(struct iio_dev *indio_dev,
|
|||
int lis3l02dq_disable_all_events(struct iio_dev *indio_dev);
|
||||
|
||||
#ifdef CONFIG_IIO_BUFFER
|
||||
/* At the moment triggers are only used for ring buffer
|
||||
/* At the moment triggers are only used for buffer
|
||||
* filling. This may change!
|
||||
*/
|
||||
void lis3l02dq_remove_trigger(struct iio_dev *indio_dev);
|
||||
int lis3l02dq_probe_trigger(struct iio_dev *indio_dev);
|
||||
|
||||
ssize_t lis3l02dq_read_accel_from_ring(struct iio_buffer *ring,
|
||||
ssize_t lis3l02dq_read_accel_from_buffer(struct iio_buffer *buffer,
|
||||
int index,
|
||||
int *val);
|
||||
|
||||
|
||||
int lis3l02dq_configure_ring(struct iio_dev *indio_dev);
|
||||
void lis3l02dq_unconfigure_ring(struct iio_dev *indio_dev);
|
||||
int lis3l02dq_configure_buffer(struct iio_dev *indio_dev);
|
||||
void lis3l02dq_unconfigure_buffer(struct iio_dev *indio_dev);
|
||||
|
||||
#ifdef CONFIG_LIS3L02DQ_BUF_RING_SW
|
||||
#define lis3l02dq_free_buf iio_sw_rb_free
|
||||
|
|
@ -203,7 +203,7 @@ irqreturn_t lis3l02dq_data_rdy_trig_poll(int irq, void *private);
|
|||
#define lis3l02dq_th lis3l02dq_data_rdy_trig_poll
|
||||
|
||||
#else /* CONFIG_IIO_BUFFER */
|
||||
#define lis3l02dq_th lis3l02dq_noring
|
||||
#define lis3l02dq_th lis3l02dq_nobuffer
|
||||
|
||||
static inline void lis3l02dq_remove_trigger(struct iio_dev *indio_dev)
|
||||
{
|
||||
|
|
@ -213,18 +213,18 @@ static inline int lis3l02dq_probe_trigger(struct iio_dev *indio_dev)
|
|||
return 0;
|
||||
}
|
||||
static inline ssize_t
|
||||
lis3l02dq_read_accel_from_ring(struct iio_buffer *ring,
|
||||
lis3l02dq_read_accel_from_buffer(struct iio_buffer *buffer,
|
||||
int index,
|
||||
int *val)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int lis3l02dq_configure_ring(struct iio_dev *indio_dev)
|
||||
static int lis3l02dq_configure_buffer(struct iio_dev *indio_dev)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
static inline void lis3l02dq_unconfigure_ring(struct iio_dev *indio_dev)
|
||||
static inline void lis3l02dq_unconfigure_buffer(struct iio_dev *indio_dev)
|
||||
{
|
||||
}
|
||||
#endif /* CONFIG_IIO_BUFFER */
|
||||
|
|
|
|||
|
|
@ -35,7 +35,7 @@
|
|||
*/
|
||||
/* direct copy of the irq_default_primary_handler */
|
||||
#ifndef CONFIG_IIO_BUFFER
|
||||
static irqreturn_t lis3l02dq_noring(int irq, void *private)
|
||||
static irqreturn_t lis3l02dq_nobuffer(int irq, void *private)
|
||||
{
|
||||
return IRQ_WAKE_THREAD;
|
||||
}
|
||||
|
|
@ -260,7 +260,8 @@ static int lis3l02dq_read_raw(struct iio_dev *indio_dev,
|
|||
/* Take the iio_dev status lock */
|
||||
mutex_lock(&indio_dev->mlock);
|
||||
if (indio_dev->currentmode == INDIO_BUFFER_TRIGGERED)
|
||||
ret = lis3l02dq_read_accel_from_ring(indio_dev->buffer,
|
||||
ret = lis3l02dq_read_accel_from_buffer(indio_dev->
|
||||
buffer,
|
||||
chan->scan_index,
|
||||
val);
|
||||
else {
|
||||
|
|
@ -686,7 +687,7 @@ static int __devinit lis3l02dq_probe(struct spi_device *spi)
|
|||
|
||||
indio_dev->modes = INDIO_DIRECT_MODE;
|
||||
|
||||
ret = lis3l02dq_configure_ring(indio_dev);
|
||||
ret = lis3l02dq_configure_buffer(indio_dev);
|
||||
if (ret)
|
||||
goto error_free_dev;
|
||||
|
||||
|
|
@ -694,8 +695,8 @@ static int __devinit lis3l02dq_probe(struct spi_device *spi)
|
|||
lis3l02dq_channels,
|
||||
ARRAY_SIZE(lis3l02dq_channels));
|
||||
if (ret) {
|
||||
printk(KERN_ERR "failed to initialize the ring\n");
|
||||
goto error_unreg_ring_funcs;
|
||||
printk(KERN_ERR "failed to initialize the buffer\n");
|
||||
goto error_unreg_buffer_funcs;
|
||||
}
|
||||
|
||||
if (spi->irq && gpio_is_valid(irq_to_gpio(spi->irq)) > 0) {
|
||||
|
|
@ -706,7 +707,7 @@ static int __devinit lis3l02dq_probe(struct spi_device *spi)
|
|||
"lis3l02dq",
|
||||
indio_dev);
|
||||
if (ret)
|
||||
goto error_uninitialize_ring;
|
||||
goto error_uninitialize_buffer;
|
||||
|
||||
ret = lis3l02dq_probe_trigger(indio_dev);
|
||||
if (ret)
|
||||
|
|
@ -730,10 +731,10 @@ error_remove_trigger:
|
|||
error_free_interrupt:
|
||||
if (spi->irq && gpio_is_valid(irq_to_gpio(spi->irq)) > 0)
|
||||
free_irq(st->us->irq, indio_dev);
|
||||
error_uninitialize_ring:
|
||||
error_uninitialize_buffer:
|
||||
iio_buffer_unregister(indio_dev);
|
||||
error_unreg_ring_funcs:
|
||||
lis3l02dq_unconfigure_ring(indio_dev);
|
||||
error_unreg_buffer_funcs:
|
||||
lis3l02dq_unconfigure_buffer(indio_dev);
|
||||
error_free_dev:
|
||||
iio_free_device(indio_dev);
|
||||
error_ret:
|
||||
|
|
@ -786,7 +787,7 @@ static int lis3l02dq_remove(struct spi_device *spi)
|
|||
|
||||
lis3l02dq_remove_trigger(indio_dev);
|
||||
iio_buffer_unregister(indio_dev);
|
||||
lis3l02dq_unconfigure_ring(indio_dev);
|
||||
lis3l02dq_unconfigure_buffer(indio_dev);
|
||||
|
||||
iio_device_unregister(indio_dev);
|
||||
|
||||
|
|
|
|||
|
|
@ -38,30 +38,30 @@ irqreturn_t lis3l02dq_data_rdy_trig_poll(int irq, void *private)
|
|||
}
|
||||
|
||||
/**
|
||||
* lis3l02dq_read_accel_from_ring() individual acceleration read from ring
|
||||
* lis3l02dq_read_accel_from_buffer() individual acceleration read from buffer
|
||||
**/
|
||||
ssize_t lis3l02dq_read_accel_from_ring(struct iio_buffer *ring,
|
||||
ssize_t lis3l02dq_read_accel_from_buffer(struct iio_buffer *buffer,
|
||||
int index,
|
||||
int *val)
|
||||
{
|
||||
int ret;
|
||||
s16 *data;
|
||||
|
||||
if (!iio_scan_mask_query(ring, index))
|
||||
if (!iio_scan_mask_query(buffer, index))
|
||||
return -EINVAL;
|
||||
|
||||
if (!ring->access->read_last)
|
||||
if (!buffer->access->read_last)
|
||||
return -EBUSY;
|
||||
|
||||
data = kmalloc(ring->access->get_bytes_per_datum(ring),
|
||||
data = kmalloc(buffer->access->get_bytes_per_datum(buffer),
|
||||
GFP_KERNEL);
|
||||
if (data == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
ret = ring->access->read_last(ring, (u8 *)data);
|
||||
ret = buffer->access->read_last(buffer, (u8 *)data);
|
||||
if (ret)
|
||||
goto error_free_data;
|
||||
*val = data[bitmap_weight(ring->scan_mask, index)];
|
||||
*val = data[bitmap_weight(buffer->scan_mask, index)];
|
||||
error_free_data:
|
||||
|
||||
kfree(data);
|
||||
|
|
@ -86,13 +86,13 @@ static const u8 read_all_tx_array[] = {
|
|||
**/
|
||||
static int lis3l02dq_read_all(struct iio_dev *indio_dev, u8 *rx_array)
|
||||
{
|
||||
struct iio_buffer *ring = indio_dev->buffer;
|
||||
struct iio_buffer *buffer = indio_dev->buffer;
|
||||
struct lis3l02dq_state *st = iio_priv(indio_dev);
|
||||
struct spi_transfer *xfers;
|
||||
struct spi_message msg;
|
||||
int ret, i, j = 0;
|
||||
|
||||
xfers = kzalloc((ring->scan_count) * 2
|
||||
xfers = kzalloc((buffer->scan_count) * 2
|
||||
* sizeof(*xfers), GFP_KERNEL);
|
||||
if (!xfers)
|
||||
return -ENOMEM;
|
||||
|
|
@ -100,7 +100,7 @@ static int lis3l02dq_read_all(struct iio_dev *indio_dev, u8 *rx_array)
|
|||
mutex_lock(&st->buf_lock);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(read_all_tx_array)/4; i++)
|
||||
if (test_bit(i, ring->scan_mask)) {
|
||||
if (test_bit(i, buffer->scan_mask)) {
|
||||
/* lower byte */
|
||||
xfers[j].tx_buf = st->tx + 2*j;
|
||||
st->tx[2*j] = read_all_tx_array[i*4];
|
||||
|
|
@ -128,7 +128,7 @@ static int lis3l02dq_read_all(struct iio_dev *indio_dev, u8 *rx_array)
|
|||
* values in alternate bytes
|
||||
*/
|
||||
spi_message_init(&msg);
|
||||
for (j = 0; j < ring->scan_count * 2; j++)
|
||||
for (j = 0; j < buffer->scan_count * 2; j++)
|
||||
spi_message_add_tail(&xfers[j], &msg);
|
||||
|
||||
ret = spi_sync(st->us, &msg);
|
||||
|
|
@ -138,7 +138,7 @@ static int lis3l02dq_read_all(struct iio_dev *indio_dev, u8 *rx_array)
|
|||
return ret;
|
||||
}
|
||||
|
||||
static int lis3l02dq_get_ring_element(struct iio_dev *indio_dev,
|
||||
static int lis3l02dq_get_buffer_element(struct iio_dev *indio_dev,
|
||||
u8 *buf)
|
||||
{
|
||||
int ret, i;
|
||||
|
|
@ -163,26 +163,26 @@ static irqreturn_t lis3l02dq_trigger_handler(int irq, void *p)
|
|||
{
|
||||
struct iio_poll_func *pf = p;
|
||||
struct iio_dev *indio_dev = pf->indio_dev;
|
||||
struct iio_buffer *ring = indio_dev->buffer;
|
||||
struct iio_buffer *buffer = indio_dev->buffer;
|
||||
int len = 0;
|
||||
size_t datasize = ring->access->get_bytes_per_datum(ring);
|
||||
size_t datasize = buffer->access->get_bytes_per_datum(buffer);
|
||||
char *data = kmalloc(datasize, GFP_KERNEL);
|
||||
|
||||
if (data == NULL) {
|
||||
dev_err(indio_dev->dev.parent,
|
||||
"memory alloc failed in ring bh");
|
||||
"memory alloc failed in buffer bh");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
if (ring->scan_count)
|
||||
len = lis3l02dq_get_ring_element(indio_dev, data);
|
||||
if (buffer->scan_count)
|
||||
len = lis3l02dq_get_buffer_element(indio_dev, data);
|
||||
|
||||
/* Guaranteed to be aligned with 8 byte boundary */
|
||||
if (ring->scan_timestamp)
|
||||
if (buffer->scan_timestamp)
|
||||
*(s64 *)(((phys_addr_t)data + len
|
||||
+ sizeof(s64) - 1) & ~(sizeof(s64) - 1))
|
||||
= pf->timestamp;
|
||||
ring->access->store_to(ring, (u8 *)data, pf->timestamp);
|
||||
buffer->access->store_to(buffer, (u8 *)data, pf->timestamp);
|
||||
|
||||
iio_trigger_notify_done(indio_dev->trig);
|
||||
kfree(data);
|
||||
|
|
@ -255,7 +255,7 @@ error_ret:
|
|||
*
|
||||
* If disabling the interrupt also does a final read to ensure it is clear.
|
||||
* This is only important in some cases where the scan enable elements are
|
||||
* switched before the ring is reenabled.
|
||||
* switched before the buffer is reenabled.
|
||||
**/
|
||||
static int lis3l02dq_data_rdy_trigger_set_state(struct iio_trigger *trig,
|
||||
bool state)
|
||||
|
|
@ -343,13 +343,13 @@ void lis3l02dq_remove_trigger(struct iio_dev *indio_dev)
|
|||
iio_free_trigger(st->trig);
|
||||
}
|
||||
|
||||
void lis3l02dq_unconfigure_ring(struct iio_dev *indio_dev)
|
||||
void lis3l02dq_unconfigure_buffer(struct iio_dev *indio_dev)
|
||||
{
|
||||
iio_dealloc_pollfunc(indio_dev->pollfunc);
|
||||
lis3l02dq_free_buf(indio_dev->buffer);
|
||||
}
|
||||
|
||||
static int lis3l02dq_ring_postenable(struct iio_dev *indio_dev)
|
||||
static int lis3l02dq_buffer_postenable(struct iio_dev *indio_dev)
|
||||
{
|
||||
/* Disable unwanted channels otherwise the interrupt will not clear */
|
||||
u8 t;
|
||||
|
|
@ -392,7 +392,7 @@ error_ret:
|
|||
}
|
||||
|
||||
/* Turn all channels on again */
|
||||
static int lis3l02dq_ring_predisable(struct iio_dev *indio_dev)
|
||||
static int lis3l02dq_buffer_predisable(struct iio_dev *indio_dev)
|
||||
{
|
||||
u8 t;
|
||||
int ret;
|
||||
|
|
@ -418,29 +418,29 @@ error_ret:
|
|||
return ret;
|
||||
}
|
||||
|
||||
static const struct iio_buffer_setup_ops lis3l02dq_ring_setup_ops = {
|
||||
static const struct iio_buffer_setup_ops lis3l02dq_buffer_setup_ops = {
|
||||
.preenable = &iio_sw_buffer_preenable,
|
||||
.postenable = &lis3l02dq_ring_postenable,
|
||||
.predisable = &lis3l02dq_ring_predisable,
|
||||
.postenable = &lis3l02dq_buffer_postenable,
|
||||
.predisable = &lis3l02dq_buffer_predisable,
|
||||
};
|
||||
|
||||
int lis3l02dq_configure_ring(struct iio_dev *indio_dev)
|
||||
int lis3l02dq_configure_buffer(struct iio_dev *indio_dev)
|
||||
{
|
||||
int ret;
|
||||
struct iio_buffer *ring;
|
||||
struct iio_buffer *buffer;
|
||||
|
||||
ring = lis3l02dq_alloc_buf(indio_dev);
|
||||
if (!ring)
|
||||
buffer = lis3l02dq_alloc_buf(indio_dev);
|
||||
if (!buffer)
|
||||
return -ENOMEM;
|
||||
|
||||
indio_dev->buffer = ring;
|
||||
/* Effectively select the ring buffer implementation */
|
||||
indio_dev->buffer = buffer;
|
||||
/* Effectively select the buffer implementation */
|
||||
indio_dev->buffer->access = &lis3l02dq_access_funcs;
|
||||
ring->bpe = 2;
|
||||
buffer->bpe = 2;
|
||||
|
||||
ring->scan_timestamp = true;
|
||||
ring->setup_ops = &lis3l02dq_ring_setup_ops;
|
||||
ring->owner = THIS_MODULE;
|
||||
buffer->scan_timestamp = true;
|
||||
buffer->setup_ops = &lis3l02dq_buffer_setup_ops;
|
||||
buffer->owner = THIS_MODULE;
|
||||
|
||||
/* Functions are NULL as we set handler below */
|
||||
indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
|
||||
|
|
|
|||
Loading…
Reference in New Issue