staging:iio:adc:ad799x: Convert to new channel registration method.
authorMichael Hennerich <michael.hennerich@analog.com>
Wed, 18 May 2011 13:41:52 +0000 (14:41 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 19 May 2011 23:14:56 +0000 (16:14 -0700)
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>
drivers/staging/iio/adc/ad799x.h
drivers/staging/iio/adc/ad799x_core.c
drivers/staging/iio/adc/ad799x_ring.c

index 331435a8cacdf25265aec6fceb44d9f8052d3441..2b2e1cbd37bd64dec3cbe330e5294ea010680a8b 100644 (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);
index 3383a35817ee096a1337cbbd7def39fbd195e797..79580dfb165817f39730b5db674bb2f541d79207 100644 (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 @@ error_ret_mutex:
        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;
 
index f0a0aae0041215068c3a76f9d76088e8782307aa..488cbc454959bcaa1d2b6ae0f12f4920cd50b5a3 100644 (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 @@ done:
        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;