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path: root/drivers/iio/light
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-rw-r--r--drivers/iio/light/Kconfig2
-rw-r--r--drivers/iio/light/bh1780.c6
-rw-r--r--drivers/iio/light/cm32181.c271
-rw-r--r--drivers/iio/light/cm3232.c3
-rw-r--r--drivers/iio/light/gp2ap020a00f.c6
-rw-r--r--drivers/iio/light/hid-sensor-als.c18
-rw-r--r--drivers/iio/light/hid-sensor-prox.c18
-rw-r--r--drivers/iio/light/ltr501.c39
-rw-r--r--drivers/iio/light/opt3001.c3
-rw-r--r--drivers/iio/light/si1133.c18
-rw-r--r--drivers/iio/light/st_uvis25_i2c.c3
-rw-r--r--drivers/iio/light/st_uvis25_spi.c3
-rw-r--r--drivers/iio/light/vcnl4000.c753
-rw-r--r--drivers/iio/light/vl6180.c3
-rw-r--r--drivers/iio/light/zopt2201.c4
15 files changed, 951 insertions, 199 deletions
diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
index b27719cefcf9..182bd18c4bb2 100644
--- a/drivers/iio/light/Kconfig
+++ b/drivers/iio/light/Kconfig
@@ -516,6 +516,8 @@ config US5182D
config VCNL4000
tristate "VCNL4000/4010/4020/4200 combined ALS and proximity sensor"
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
depends on I2C
help
Say Y here if you want to build a driver for the Vishay VCNL4000,
diff --git a/drivers/iio/light/bh1780.c b/drivers/iio/light/bh1780.c
index a8361006dcd9..03f2d8d123c4 100644
--- a/drivers/iio/light/bh1780.c
+++ b/drivers/iio/light/bh1780.c
@@ -13,7 +13,7 @@
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/module.h>
-#include <linux/of.h>
+#include <linux/mod_devicetable.h>
#include <linux/pm_runtime.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
@@ -273,13 +273,11 @@ static const struct i2c_device_id bh1780_id[] = {
MODULE_DEVICE_TABLE(i2c, bh1780_id);
-#ifdef CONFIG_OF
static const struct of_device_id of_bh1780_match[] = {
{ .compatible = "rohm,bh1780gli", },
{},
};
MODULE_DEVICE_TABLE(of, of_bh1780_match);
-#endif
static struct i2c_driver bh1780_driver = {
.probe = bh1780_probe,
@@ -288,7 +286,7 @@ static struct i2c_driver bh1780_driver = {
.driver = {
.name = "bh1780",
.pm = &bh1780_dev_pm_ops,
- .of_match_table = of_match_ptr(of_bh1780_match),
+ .of_match_table = of_bh1780_match,
},
};
diff --git a/drivers/iio/light/cm32181.c b/drivers/iio/light/cm32181.c
index 5f4fb5674fa0..160eb3f99795 100644
--- a/drivers/iio/light/cm32181.c
+++ b/drivers/iio/light/cm32181.c
@@ -4,11 +4,13 @@
* Author: Kevin Tsai <ktsai@capellamicro.com>
*/
+#include <linux/acpi.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/mutex.h>
#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/interrupt.h>
#include <linux/regulator/consumer.h>
#include <linux/iio/iio.h>
@@ -18,17 +20,24 @@
/* Registers Address */
#define CM32181_REG_ADDR_CMD 0x00
+#define CM32181_REG_ADDR_WH 0x01
+#define CM32181_REG_ADDR_WL 0x02
+#define CM32181_REG_ADDR_TEST 0x03
#define CM32181_REG_ADDR_ALS 0x04
#define CM32181_REG_ADDR_STATUS 0x06
#define CM32181_REG_ADDR_ID 0x07
/* Number of Configurable Registers */
-#define CM32181_CONF_REG_NUM 0x01
+#define CM32181_CONF_REG_NUM 4
/* CMD register */
-#define CM32181_CMD_ALS_ENABLE 0x00
-#define CM32181_CMD_ALS_DISABLE 0x01
-#define CM32181_CMD_ALS_INT_EN 0x02
+#define CM32181_CMD_ALS_DISABLE BIT(0)
+#define CM32181_CMD_ALS_INT_EN BIT(1)
+#define CM32181_CMD_ALS_THRES_WINDOW BIT(2)
+
+#define CM32181_CMD_ALS_PERS_SHIFT 4
+#define CM32181_CMD_ALS_PERS_MASK (0x03 << CM32181_CMD_ALS_PERS_SHIFT)
+#define CM32181_CMD_ALS_PERS_DEFAULT (0x01 << CM32181_CMD_ALS_PERS_SHIFT)
#define CM32181_CMD_ALS_IT_SHIFT 6
#define CM32181_CMD_ALS_IT_MASK (0x0F << CM32181_CMD_ALS_IT_SHIFT)
@@ -38,27 +47,133 @@
#define CM32181_CMD_ALS_SM_MASK (0x03 << CM32181_CMD_ALS_SM_SHIFT)
#define CM32181_CMD_ALS_SM_DEFAULT (0x01 << CM32181_CMD_ALS_SM_SHIFT)
-#define CM32181_MLUX_PER_BIT 5 /* ALS_SM=01 IT=800ms */
-#define CM32181_MLUX_PER_BIT_BASE_IT 800000 /* Based on IT=800ms */
-#define CM32181_CALIBSCALE_DEFAULT 1000
-#define CM32181_CALIBSCALE_RESOLUTION 1000
-#define MLUX_PER_LUX 1000
+#define CM32181_LUX_PER_BIT 500 /* ALS_SM=01 IT=800ms */
+#define CM32181_LUX_PER_BIT_RESOLUTION 100000
+#define CM32181_LUX_PER_BIT_BASE_IT 800000 /* Based on IT=800ms */
+#define CM32181_CALIBSCALE_DEFAULT 100000
+#define CM32181_CALIBSCALE_RESOLUTION 100000
-static const u8 cm32181_reg[CM32181_CONF_REG_NUM] = {
- CM32181_REG_ADDR_CMD,
-};
+#define SMBUS_ALERT_RESPONSE_ADDRESS 0x0c
+
+/* CPM0 Index 0: device-id (3218 or 32181), 1: Unknown, 2: init_regs_bitmap */
+#define CPM0_REGS_BITMAP 2
+#define CPM0_HEADER_SIZE 3
-static const int als_it_bits[] = {12, 8, 0, 1, 2, 3};
-static const int als_it_value[] = {25000, 50000, 100000, 200000, 400000,
- 800000};
+/* CPM1 Index 0: lux_per_bit, 1: calibscale, 2: resolution (100000) */
+#define CPM1_LUX_PER_BIT 0
+#define CPM1_CALIBSCALE 1
+#define CPM1_SIZE 3
+
+/* CM3218 Family */
+static const int cm3218_als_it_bits[] = { 0, 1, 2, 3 };
+static const int cm3218_als_it_values[] = { 100000, 200000, 400000, 800000 };
+
+/* CM32181 Family */
+static const int cm32181_als_it_bits[] = { 12, 8, 0, 1, 2, 3 };
+static const int cm32181_als_it_values[] = {
+ 25000, 50000, 100000, 200000, 400000, 800000
+};
struct cm32181_chip {
struct i2c_client *client;
+ struct device *dev;
struct mutex lock;
u16 conf_regs[CM32181_CONF_REG_NUM];
+ unsigned long init_regs_bitmap;
int calibscale;
+ int lux_per_bit;
+ int lux_per_bit_base_it;
+ int num_als_it;
+ const int *als_it_bits;
+ const int *als_it_values;
};
+static int cm32181_read_als_it(struct cm32181_chip *cm32181, int *val2);
+
+#ifdef CONFIG_ACPI
+/**
+ * cm32181_acpi_get_cpm() - Get CPM object from ACPI
+ * @client pointer of struct i2c_client.
+ * @obj_name pointer of ACPI object name.
+ * @count maximum size of return array.
+ * @vals pointer of array for return elements.
+ *
+ * Convert ACPI CPM table to array.
+ *
+ * Return: -ENODEV for fail. Otherwise is number of elements.
+ */
+static int cm32181_acpi_get_cpm(struct device *dev, char *obj_name,
+ u64 *values, int count)
+{
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *cpm, *elem;
+ acpi_handle handle;
+ acpi_status status;
+ int i;
+
+ handle = ACPI_HANDLE(dev);
+ if (!handle)
+ return -ENODEV;
+
+ status = acpi_evaluate_object(handle, obj_name, NULL, &buffer);
+ if (ACPI_FAILURE(status)) {
+ dev_err(dev, "object %s not found\n", obj_name);
+ return -ENODEV;
+ }
+
+ cpm = buffer.pointer;
+ if (cpm->package.count > count)
+ dev_warn(dev, "%s table contains %u values, only using first %d values\n",
+ obj_name, cpm->package.count, count);
+
+ count = min_t(int, cpm->package.count, count);
+ for (i = 0; i < count; i++) {
+ elem = &(cpm->package.elements[i]);
+ values[i] = elem->integer.value;
+ }
+
+ kfree(buffer.pointer);
+
+ return count;
+}
+
+static void cm32181_acpi_parse_cpm_tables(struct cm32181_chip *cm32181)
+{
+ u64 vals[CPM0_HEADER_SIZE + CM32181_CONF_REG_NUM];
+ struct device *dev = cm32181->dev;
+ int i, count;
+
+ count = cm32181_acpi_get_cpm(dev, "CPM0", vals, ARRAY_SIZE(vals));
+ if (count <= CPM0_HEADER_SIZE)
+ return;
+
+ count -= CPM0_HEADER_SIZE;
+
+ cm32181->init_regs_bitmap = vals[CPM0_REGS_BITMAP];
+ cm32181->init_regs_bitmap &= GENMASK(count - 1, 0);
+ for_each_set_bit(i, &cm32181->init_regs_bitmap, count)
+ cm32181->conf_regs[i] = vals[CPM0_HEADER_SIZE + i];
+
+ count = cm32181_acpi_get_cpm(dev, "CPM1", vals, ARRAY_SIZE(vals));
+ if (count != CPM1_SIZE)
+ return;
+
+ cm32181->lux_per_bit = vals[CPM1_LUX_PER_BIT];
+
+ /* Check for uncalibrated devices */
+ if (vals[CPM1_CALIBSCALE] == CM32181_CALIBSCALE_DEFAULT)
+ return;
+
+ cm32181->calibscale = vals[CPM1_CALIBSCALE];
+ /* CPM1 lux_per_bit is for the current it value */
+ cm32181_read_als_it(cm32181, &cm32181->lux_per_bit_base_it);
+}
+#else
+static void cm32181_acpi_parse_cpm_tables(struct cm32181_chip *cm32181)
+{
+}
+#endif /* CONFIG_ACPI */
+
/**
* cm32181_reg_init() - Initialize CM32181 registers
* @cm32181: pointer of struct cm32181.
@@ -78,18 +193,37 @@ static int cm32181_reg_init(struct cm32181_chip *cm32181)
return ret;
/* check device ID */
- if ((ret & 0xFF) != 0x81)
+ switch (ret & 0xFF) {
+ case 0x18: /* CM3218 */
+ cm32181->num_als_it = ARRAY_SIZE(cm3218_als_it_bits);
+ cm32181->als_it_bits = cm3218_als_it_bits;
+ cm32181->als_it_values = cm3218_als_it_values;
+ break;
+ case 0x81: /* CM32181 */
+ case 0x82: /* CM32182, fully compat. with CM32181 */
+ cm32181->num_als_it = ARRAY_SIZE(cm32181_als_it_bits);
+ cm32181->als_it_bits = cm32181_als_it_bits;
+ cm32181->als_it_values = cm32181_als_it_values;
+ break;
+ default:
return -ENODEV;
+ }
/* Default Values */
- cm32181->conf_regs[CM32181_REG_ADDR_CMD] = CM32181_CMD_ALS_ENABLE |
+ cm32181->conf_regs[CM32181_REG_ADDR_CMD] =
CM32181_CMD_ALS_IT_DEFAULT | CM32181_CMD_ALS_SM_DEFAULT;
+ cm32181->init_regs_bitmap = BIT(CM32181_REG_ADDR_CMD);
cm32181->calibscale = CM32181_CALIBSCALE_DEFAULT;
+ cm32181->lux_per_bit = CM32181_LUX_PER_BIT;
+ cm32181->lux_per_bit_base_it = CM32181_LUX_PER_BIT_BASE_IT;
+
+ if (ACPI_HANDLE(cm32181->dev))
+ cm32181_acpi_parse_cpm_tables(cm32181);
/* Initialize registers*/
- for (i = 0; i < CM32181_CONF_REG_NUM; i++) {
- ret = i2c_smbus_write_word_data(client, cm32181_reg[i],
- cm32181->conf_regs[i]);
+ for_each_set_bit(i, &cm32181->init_regs_bitmap, CM32181_CONF_REG_NUM) {
+ ret = i2c_smbus_write_word_data(client, i,
+ cm32181->conf_regs[i]);
if (ret < 0)
return ret;
}
@@ -102,7 +236,7 @@ static int cm32181_reg_init(struct cm32181_chip *cm32181)
* @cm32181: pointer of struct cm32181
* @val2: pointer of int to load the als_it value.
*
- * Report the current integartion time by millisecond.
+ * Report the current integration time in milliseconds.
*
* Return: IIO_VAL_INT_PLUS_MICRO for success, otherwise -EINVAL.
*/
@@ -114,9 +248,9 @@ static int cm32181_read_als_it(struct cm32181_chip *cm32181, int *val2)
als_it = cm32181->conf_regs[CM32181_REG_ADDR_CMD];
als_it &= CM32181_CMD_ALS_IT_MASK;
als_it >>= CM32181_CMD_ALS_IT_SHIFT;
- for (i = 0; i < ARRAY_SIZE(als_it_bits); i++) {
- if (als_it == als_it_bits[i]) {
- *val2 = als_it_value[i];
+ for (i = 0; i < cm32181->num_als_it; i++) {
+ if (als_it == cm32181->als_it_bits[i]) {
+ *val2 = cm32181->als_it_values[i];
return IIO_VAL_INT_PLUS_MICRO;
}
}
@@ -139,14 +273,14 @@ static int cm32181_write_als_it(struct cm32181_chip *cm32181, int val)
u16 als_it;
int ret, i, n;
- n = ARRAY_SIZE(als_it_value);
+ n = cm32181->num_als_it;
for (i = 0; i < n; i++)
- if (val <= als_it_value[i])
+ if (val <= cm32181->als_it_values[i])
break;
if (i >= n)
i = n - 1;
- als_it = als_it_bits[i];
+ als_it = cm32181->als_it_bits[i];
als_it <<= CM32181_CMD_ALS_IT_SHIFT;
mutex_lock(&cm32181->lock);
@@ -175,15 +309,15 @@ static int cm32181_get_lux(struct cm32181_chip *cm32181)
struct i2c_client *client = cm32181->client;
int ret;
int als_it;
- unsigned long lux;
+ u64 lux;
ret = cm32181_read_als_it(cm32181, &als_it);
if (ret < 0)
return -EINVAL;
- lux = CM32181_MLUX_PER_BIT;
- lux *= CM32181_MLUX_PER_BIT_BASE_IT;
- lux /= als_it;
+ lux = cm32181->lux_per_bit;
+ lux *= cm32181->lux_per_bit_base_it;
+ lux = div_u64(lux, als_it);
ret = i2c_smbus_read_word_data(client, CM32181_REG_ADDR_ALS);
if (ret < 0)
@@ -191,8 +325,8 @@ static int cm32181_get_lux(struct cm32181_chip *cm32181)
lux *= ret;
lux *= cm32181->calibscale;
- lux /= CM32181_CALIBSCALE_RESOLUTION;
- lux /= MLUX_PER_LUX;
+ lux = div_u64(lux, CM32181_CALIBSCALE_RESOLUTION);
+ lux = div_u64(lux, CM32181_LUX_PER_BIT_RESOLUTION);
if (lux > 0xFFFF)
lux = 0xFFFF;
@@ -258,11 +392,12 @@ static int cm32181_write_raw(struct iio_dev *indio_dev,
static ssize_t cm32181_get_it_available(struct device *dev,
struct device_attribute *attr, char *buf)
{
+ struct cm32181_chip *cm32181 = iio_priv(dev_to_iio_dev(dev));
int i, n, len;
- n = ARRAY_SIZE(als_it_value);
+ n = cm32181->num_als_it;
for (i = 0, len = 0; i < n; i++)
- len += sprintf(buf + len, "0.%06u ", als_it_value[i]);
+ len += sprintf(buf + len, "0.%06u ", cm32181->als_it_values[i]);
return len + sprintf(buf + len, "\n");
}
@@ -294,70 +429,86 @@ static const struct iio_info cm32181_info = {
.attrs = &cm32181_attribute_group,
};
-static int cm32181_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int cm32181_probe(struct i2c_client *client)
{
+ struct device *dev = &client->dev;
struct cm32181_chip *cm32181;
struct iio_dev *indio_dev;
int ret;
- indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*cm32181));
- if (!indio_dev) {
- dev_err(&client->dev, "devm_iio_device_alloc failed\n");
+ indio_dev = devm_iio_device_alloc(dev, sizeof(*cm32181));
+ if (!indio_dev)
return -ENOMEM;
+
+ /*
+ * Some ACPI systems list 2 I2C resources for the CM3218 sensor, the
+ * SMBus Alert Response Address (ARA, 0x0c) and the actual I2C address.
+ * Detect this and take the following step to deal with it:
+ * 1. When a SMBus Alert capable sensor has an Alert asserted, it will
+ * not respond on its actual I2C address. Read a byte from the ARA
+ * to clear any pending Alerts.
+ * 2. Create a "dummy" client for the actual I2C address and
+ * use that client to communicate with the sensor.
+ */
+ if (ACPI_HANDLE(dev) && client->addr == SMBUS_ALERT_RESPONSE_ADDRESS) {
+ struct i2c_board_info board_info = { .type = "dummy" };
+
+ i2c_smbus_read_byte(client);
+
+ client = i2c_acpi_new_device(dev, 1, &board_info);
+ if (IS_ERR(client))
+ return PTR_ERR(client);
}
cm32181 = iio_priv(indio_dev);
- i2c_set_clientdata(client, indio_dev);
cm32181->client = client;
+ cm32181->dev = dev;
mutex_init(&cm32181->lock);
- indio_dev->dev.parent = &client->dev;
+ indio_dev->dev.parent = dev;
indio_dev->channels = cm32181_channels;
indio_dev->num_channels = ARRAY_SIZE(cm32181_channels);
indio_dev->info = &cm32181_info;
- indio_dev->name = id->name;
+ indio_dev->name = dev_name(dev);
indio_dev->modes = INDIO_DIRECT_MODE;
ret = cm32181_reg_init(cm32181);
if (ret) {
- dev_err(&client->dev,
- "%s: register init failed\n",
- __func__);
+ dev_err(dev, "%s: register init failed\n", __func__);
return ret;
}
- ret = devm_iio_device_register(&client->dev, indio_dev);
+ ret = devm_iio_device_register(dev, indio_dev);
if (ret) {
- dev_err(&client->dev,
- "%s: regist device failed\n",
- __func__);
+ dev_err(dev, "%s: regist device failed\n", __func__);
return ret;
}
return 0;
}
-static const struct i2c_device_id cm32181_id[] = {
- { "cm32181", 0 },
- { }
-};
-
-MODULE_DEVICE_TABLE(i2c, cm32181_id);
-
static const struct of_device_id cm32181_of_match[] = {
+ { .compatible = "capella,cm3218" },
{ .compatible = "capella,cm32181" },
{ }
};
MODULE_DEVICE_TABLE(of, cm32181_of_match);
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id cm32181_acpi_match[] = {
+ { "CPLM3218", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, cm32181_acpi_match);
+#endif
+
static struct i2c_driver cm32181_driver = {
.driver = {
.name = "cm32181",
- .of_match_table = of_match_ptr(cm32181_of_match),
+ .acpi_match_table = ACPI_PTR(cm32181_acpi_match),
+ .of_match_table = cm32181_of_match,
},
- .id_table = cm32181_id,
- .probe = cm32181_probe,
+ .probe_new = cm32181_probe,
};
module_i2c_driver(cm32181_driver);
diff --git a/drivers/iio/light/cm3232.c b/drivers/iio/light/cm3232.c
index cd3cfb7d02bd..867200825686 100644
--- a/drivers/iio/light/cm3232.c
+++ b/drivers/iio/light/cm3232.c
@@ -10,6 +10,7 @@
#include <linux/i2c.h>
#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
#include <linux/init.h>
@@ -418,7 +419,7 @@ MODULE_DEVICE_TABLE(of, cm3232_of_match);
static struct i2c_driver cm3232_driver = {
.driver = {
.name = "cm3232",
- .of_match_table = of_match_ptr(cm3232_of_match),
+ .of_match_table = cm3232_of_match,
#ifdef CONFIG_PM_SLEEP
.pm = &cm3232_pm_ops,
#endif
diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c
index 7fbbce0d4bc7..070d4cd0cf54 100644
--- a/drivers/iio/light/gp2ap020a00f.c
+++ b/drivers/iio/light/gp2ap020a00f.c
@@ -38,8 +38,8 @@
#include <linux/irq.h>
#include <linux/irq_work.h>
#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/mutex.h>
-#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
@@ -1617,18 +1617,16 @@ static const struct i2c_device_id gp2ap020a00f_id[] = {
MODULE_DEVICE_TABLE(i2c, gp2ap020a00f_id);
-#ifdef CONFIG_OF
static const struct of_device_id gp2ap020a00f_of_match[] = {
{ .compatible = "sharp,gp2ap020a00f" },
{ }
};
MODULE_DEVICE_TABLE(of, gp2ap020a00f_of_match);
-#endif
static struct i2c_driver gp2ap020a00f_driver = {
.driver = {
.name = GP2A_I2C_NAME,
- .of_match_table = of_match_ptr(gp2ap020a00f_of_match),
+ .of_match_table = gp2ap020a00f_of_match,
},
.probe = gp2ap020a00f_probe,
.remove = gp2ap020a00f_remove,
diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
index b6cd299517d1..81fa2a422797 100644
--- a/drivers/iio/light/hid-sensor-als.c
+++ b/drivers/iio/light/hid-sensor-als.c
@@ -14,8 +14,6 @@
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
#include <linux/iio/buffer.h>
-#include <linux/iio/trigger_consumer.h>
-#include <linux/iio/triggered_buffer.h>
#include "../common/hid-sensors/hid-sensor-trigger.h"
enum {
@@ -308,18 +306,13 @@ static int hid_als_probe(struct platform_device *pdev)
indio_dev->name = name;
indio_dev->modes = INDIO_DIRECT_MODE;
- ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
- NULL, NULL);
- if (ret) {
- dev_err(&pdev->dev, "failed to initialize trigger buffer\n");
- goto error_free_dev_mem;
- }
atomic_set(&als_state->common_attributes.data_ready, 0);
+
ret = hid_sensor_setup_trigger(indio_dev, name,
&als_state->common_attributes);
if (ret < 0) {
dev_err(&pdev->dev, "trigger setup failed\n");
- goto error_unreg_buffer_funcs;
+ goto error_free_dev_mem;
}
ret = iio_device_register(indio_dev);
@@ -343,9 +336,7 @@ static int hid_als_probe(struct platform_device *pdev)
error_iio_unreg:
iio_device_unregister(indio_dev);
error_remove_trigger:
- hid_sensor_remove_trigger(&als_state->common_attributes);
-error_unreg_buffer_funcs:
- iio_triggered_buffer_cleanup(indio_dev);
+ hid_sensor_remove_trigger(indio_dev, &als_state->common_attributes);
error_free_dev_mem:
kfree(indio_dev->channels);
return ret;
@@ -360,8 +351,7 @@ static int hid_als_remove(struct platform_device *pdev)
sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_ALS);
iio_device_unregister(indio_dev);
- hid_sensor_remove_trigger(&als_state->common_attributes);
- iio_triggered_buffer_cleanup(indio_dev);
+ hid_sensor_remove_trigger(indio_dev, &als_state->common_attributes);
kfree(indio_dev->channels);
return 0;
diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c
index 7e1030af9ba3..e9c04df07344 100644
--- a/drivers/iio/light/hid-sensor-prox.c
+++ b/drivers/iio/light/hid-sensor-prox.c
@@ -14,8 +14,6 @@
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
#include <linux/iio/buffer.h>
-#include <linux/iio/trigger_consumer.h>
-#include <linux/iio/triggered_buffer.h>
#include "../common/hid-sensors/hid-sensor-trigger.h"
#define CHANNEL_SCAN_INDEX_PRESENCE 0
@@ -286,18 +284,13 @@ static int hid_prox_probe(struct platform_device *pdev)
indio_dev->name = name;
indio_dev->modes = INDIO_DIRECT_MODE;
- ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
- NULL, NULL);
- if (ret) {
- dev_err(&pdev->dev, "failed to initialize trigger buffer\n");
- goto error_free_dev_mem;
- }
atomic_set(&prox_state->common_attributes.data_ready, 0);
+
ret = hid_sensor_setup_trigger(indio_dev, name,
&prox_state->common_attributes);
if (ret) {
dev_err(&pdev->dev, "trigger setup failed\n");
- goto error_unreg_buffer_funcs;
+ goto error_free_dev_mem;
}
ret = iio_device_register(indio_dev);
@@ -321,9 +314,7 @@ static int hid_prox_probe(struct platform_device *pdev)
error_iio_unreg:
iio_device_unregister(indio_dev);
error_remove_trigger:
- hid_sensor_remove_trigger(&prox_state->common_attributes);
-error_unreg_buffer_funcs:
- iio_triggered_buffer_cleanup(indio_dev);
+ hid_sensor_remove_trigger(indio_dev, &prox_state->common_attributes);
error_free_dev_mem:
kfree(indio_dev->channels);
return ret;
@@ -338,8 +329,7 @@ static int hid_prox_remove(struct platform_device *pdev)
sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_PROX);
iio_device_unregister(indio_dev);
- hid_sensor_remove_trigger(&prox_state->common_attributes);
- iio_triggered_buffer_cleanup(indio_dev);
+ hid_sensor_remove_trigger(indio_dev, &prox_state->common_attributes);
kfree(indio_dev->channels);
return 0;
diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c
index 0626927251bb..5a3fcb127cd2 100644
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -101,12 +101,12 @@ struct ltr501_gain {
int uscale;
};
-static struct ltr501_gain ltr501_als_gain_tbl[] = {
+static const struct ltr501_gain ltr501_als_gain_tbl[] = {
{1, 0},
{0, 5000},
};
-static struct ltr501_gain ltr559_als_gain_tbl[] = {
+static const struct ltr501_gain ltr559_als_gain_tbl[] = {
{1, 0},
{0, 500000},
{0, 250000},
@@ -117,14 +117,14 @@ static struct ltr501_gain ltr559_als_gain_tbl[] = {
{0, 10000},
};
-static struct ltr501_gain ltr501_ps_gain_tbl[] = {
+static const struct ltr501_gain ltr501_ps_gain_tbl[] = {
{1, 0},
{0, 250000},
{0, 125000},
{0, 62500},
};
-static struct ltr501_gain ltr559_ps_gain_tbl[] = {
+static const struct ltr501_gain ltr559_ps_gain_tbl[] = {
{0, 62500}, /* x16 gain */
{0, 31250}, /* x32 gain */
{0, 15625}, /* bits X1 are for x64 gain */
@@ -133,9 +133,9 @@ static struct ltr501_gain ltr559_ps_gain_tbl[] = {
struct ltr501_chip_info {
u8 partid;
- struct ltr501_gain *als_gain;
+ const struct ltr501_gain *als_gain;
int als_gain_tbl_size;
- struct ltr501_gain *ps_gain;
+ const struct ltr501_gain *ps_gain;
int ps_gain_tbl_size;
u8 als_mode_active;
u8 als_gain_mask;
@@ -192,7 +192,7 @@ static int ltr501_match_samp_freq(const struct ltr501_samp_table *tab,
return -EINVAL;
}
-static int ltr501_als_read_samp_freq(struct ltr501_data *data,
+static int ltr501_als_read_samp_freq(const struct ltr501_data *data,
int *val, int *val2)
{
int ret, i;
@@ -210,7 +210,7 @@ static int ltr501_als_read_samp_freq(struct ltr501_data *data,
return IIO_VAL_INT_PLUS_MICRO;
}
-static int ltr501_ps_read_samp_freq(struct ltr501_data *data,
+static int ltr501_ps_read_samp_freq(const struct ltr501_data *data,
int *val, int *val2)
{
int ret, i;
@@ -266,7 +266,7 @@ static int ltr501_ps_write_samp_freq(struct ltr501_data *data,
return ret;
}
-static int ltr501_als_read_samp_period(struct ltr501_data *data, int *val)
+static int ltr501_als_read_samp_period(const struct ltr501_data *data, int *val)
{
int ret, i;
@@ -282,7 +282,7 @@ static int ltr501_als_read_samp_period(struct ltr501_data *data, int *val)
return IIO_VAL_INT;
}
-static int ltr501_ps_read_samp_period(struct ltr501_data *data, int *val)
+static int ltr501_ps_read_samp_period(const struct ltr501_data *data, int *val)
{
int ret, i;
@@ -321,7 +321,7 @@ static unsigned long ltr501_calculate_lux(u16 vis_data, u16 ir_data)
return lux / 1000;
}
-static int ltr501_drdy(struct ltr501_data *data, u8 drdy_mask)
+static int ltr501_drdy(const struct ltr501_data *data, u8 drdy_mask)
{
int tries = 100;
int ret, status;
@@ -373,7 +373,8 @@ static int ltr501_set_it_time(struct ltr501_data *data, int it)
}
/* read int time in micro seconds */
-static int ltr501_read_it_time(struct ltr501_data *data, int *val, int *val2)
+static int ltr501_read_it_time(const struct ltr501_data *data,
+ int *val, int *val2)
{
int ret, index;
@@ -391,7 +392,7 @@ static int ltr501_read_it_time(struct ltr501_data *data, int *val, int *val2)
return IIO_VAL_INT_PLUS_MICRO;
}
-static int ltr501_read_als(struct ltr501_data *data, __le16 buf[2])
+static int ltr501_read_als(const struct ltr501_data *data, __le16 buf[2])
{
int ret;
@@ -403,7 +404,7 @@ static int ltr501_read_als(struct ltr501_data *data, __le16 buf[2])
buf, 2 * sizeof(__le16));
}
-static int ltr501_read_ps(struct ltr501_data *data)
+static int ltr501_read_ps(const struct ltr501_data *data)
{
int ret, status;
@@ -419,7 +420,7 @@ static int ltr501_read_ps(struct ltr501_data *data)
return status;
}
-static int ltr501_read_intr_prst(struct ltr501_data *data,
+static int ltr501_read_intr_prst(const struct ltr501_data *data,
enum iio_chan_type type,
int *val2)
{
@@ -716,7 +717,7 @@ static int ltr501_read_raw(struct iio_dev *indio_dev,
return -EINVAL;
}
-static int ltr501_get_gain_index(struct ltr501_gain *gain, int size,
+static int ltr501_get_gain_index(const struct ltr501_gain *gain, int size,
int val, int val2)
{
int i;
@@ -848,14 +849,14 @@ static int ltr501_write_raw(struct iio_dev *indio_dev,
return ret;
}
-static int ltr501_read_thresh(struct iio_dev *indio_dev,
+static int ltr501_read_thresh(const struct iio_dev *indio_dev,
const struct iio_chan_spec *chan,
enum iio_event_type type,
enum iio_event_direction dir,
enum iio_event_info info,
int *val, int *val2)
{
- struct ltr501_data *data = iio_priv(indio_dev);
+ const struct ltr501_data *data = iio_priv(indio_dev);
int ret, thresh_data;
switch (chan->type) {
@@ -1359,7 +1360,7 @@ static bool ltr501_is_volatile_reg(struct device *dev, unsigned int reg)
}
}
-static struct regmap_config ltr501_regmap_config = {
+static const struct regmap_config ltr501_regmap_config = {
.name = LTR501_REGMAP_NAME,
.reg_bits = 8,
.val_bits = 8,
diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c
index 92004a2563ea..82abfa57b59c 100644
--- a/drivers/iio/light/opt3001.c
+++ b/drivers/iio/light/opt3001.c
@@ -16,6 +16,7 @@
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/types.h>
@@ -844,7 +845,7 @@ static struct i2c_driver opt3001_driver = {
.driver = {
.name = "opt3001",
- .of_match_table = of_match_ptr(opt3001_of_match),
+ .of_match_table = opt3001_of_match,
},
};
diff --git a/drivers/iio/light/si1133.c b/drivers/iio/light/si1133.c
index 9174ab928880..c1adab2a50fd 100644
--- a/drivers/iio/light/si1133.c
+++ b/drivers/iio/light/si1133.c
@@ -17,6 +17,8 @@
#include <linux/util_macros.h>
+#include <asm/unaligned.h>
+
#define SI1133_REG_PART_ID 0x00
#define SI1133_REG_REV_ID 0x01
#define SI1133_REG_MFR_ID 0x02
@@ -104,8 +106,6 @@
#define SI1133_LUX_BUFFER_SIZE 9
#define SI1133_MEASURE_BUFFER_SIZE 3
-#define SI1133_SIGN_BIT_INDEX 23
-
static const int si1133_scale_available[] = {
1, 2, 4, 8, 16, 32, 64, 128};
@@ -633,8 +633,7 @@ static int si1133_measure(struct si1133_data *data,
if (err)
return err;
- *val = sign_extend32((buffer[0] << 16) | (buffer[1] << 8) | buffer[2],
- SI1133_SIGN_BIT_INDEX);
+ *val = sign_extend32(get_unaligned_be24(&buffer[0]), 23);
return err;
}
@@ -723,16 +722,11 @@ static int si1133_get_lux(struct si1133_data *data, int *val)
if (err)
return err;
- high_vis =
- sign_extend32((buffer[0] << 16) | (buffer[1] << 8) | buffer[2],
- SI1133_SIGN_BIT_INDEX);
+ high_vis = sign_extend32(get_unaligned_be24(&buffer[0]), 23);
- low_vis =
- sign_extend32((buffer[3] << 16) | (buffer[4] << 8) | buffer[5],
- SI1133_SIGN_BIT_INDEX);
+ low_vis = sign_extend32(get_unaligned_be24(&buffer[3]), 23);
- ir = sign_extend32((buffer[6] << 16) | (buffer[7] << 8) | buffer[8],
- SI1133_SIGN_BIT_INDEX);
+ ir = sign_extend32(get_unaligned_be24(&buffer[6]), 23);
if (high_vis > SI1133_ADC_THRESHOLD || ir > SI1133_ADC_THRESHOLD)
lux = si1133_calc_polynomial(high_vis, ir,
diff --git a/drivers/iio/light/st_uvis25_i2c.c b/drivers/iio/light/st_uvis25_i2c.c
index 400724069d19..98cd49eefe45 100644
--- a/drivers/iio/light/st_uvis25_i2c.c
+++ b/drivers/iio/light/st_uvis25_i2c.c
@@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/regmap.h>
@@ -55,7 +56,7 @@ static struct i2c_driver st_uvis25_driver = {
.driver = {
.name = "st_uvis25_i2c",
.pm = &st_uvis25_pm_ops,
- .of_match_table = of_match_ptr(st_uvis25_i2c_of_match),
+ .of_match_table = st_uvis25_i2c_of_match,
},
.probe = st_uvis25_i2c_probe,
.id_table = st_uvis25_i2c_id_table,
diff --git a/drivers/iio/light/st_uvis25_spi.c b/drivers/iio/light/st_uvis25_spi.c
index cd3761a3ee3f..af9d94d12787 100644
--- a/drivers/iio/light/st_uvis25_spi.c
+++ b/drivers/iio/light/st_uvis25_spi.c
@@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/spi/spi.h>
#include <linux/slab.h>
#include <linux/regmap.h>
@@ -55,7 +56,7 @@ static struct spi_driver st_uvis25_driver = {
.driver = {
.name = "st_uvis25_spi",
.pm = &st_uvis25_pm_ops,
- .of_match_table = of_match_ptr(st_uvis25_spi_of_match),
+ .of_match_table = st_uvis25_spi_of_match,
},
.probe = st_uvis25_spi_probe,
.id_table = st_uvis25_spi_id_table,
diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c
index 985cc39ede8e..2a4b3d331055 100644
--- a/drivers/iio/light/vcnl4000.c
+++ b/drivers/iio/light/vcnl4000.c
@@ -5,6 +5,7 @@
*
* Copyright 2012 Peter Meerwald <pmeerw@pmeerw.net>
* Copyright 2019 Pursim SPC
+ * Copyright 2020 Mathieu Othacehe <m.othacehe@gmail.com>
*
* IIO driver for:
* VCNL4000/10/20 (7-bit I2C slave address 0x13)
@@ -13,9 +14,7 @@
*
* TODO:
* allow to adjust IR current
- * proximity threshold and event handling
- * periodic ALS/proximity measurement (VCNL4010/20)
- * interrupts (VCNL4010/20/40, VCNL4200)
+ * interrupts (VCNL4040, VCNL4200)
*/
#include <linux/module.h>
@@ -23,9 +22,15 @@
#include <linux/err.h>
#include <linux/delay.h>
#include <linux/pm_runtime.h>
+#include <linux/interrupt.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/events.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
#define VCNL4000_DRV_NAME "vcnl4000"
#define VCNL4000_PROD_ID 0x01
@@ -35,14 +40,22 @@
#define VCNL4000_COMMAND 0x80 /* Command register */
#define VCNL4000_PROD_REV 0x81 /* Product ID and Revision ID */
+#define VCNL4010_PROX_RATE 0x82 /* Proximity rate */
#define VCNL4000_LED_CURRENT 0x83 /* IR LED current for proximity mode */
#define VCNL4000_AL_PARAM 0x84 /* Ambient light parameter register */
+#define VCNL4010_ALS_PARAM 0x84 /* ALS rate */
#define VCNL4000_AL_RESULT_HI 0x85 /* Ambient light result register, MSB */
#define VCNL4000_AL_RESULT_LO 0x86 /* Ambient light result register, LSB */
#define VCNL4000_PS_RESULT_HI 0x87 /* Proximity result register, MSB */
#define VCNL4000_PS_RESULT_LO 0x88 /* Proximity result register, LSB */
#define VCNL4000_PS_MEAS_FREQ 0x89 /* Proximity test signal frequency */
+#define VCNL4010_INT_CTRL 0x89 /* Interrupt control */
#define VCNL4000_PS_MOD_ADJ 0x8a /* Proximity modulator timing adjustment */
+#define VCNL4010_LOW_THR_HI 0x8a /* Low threshold, MSB */
+#define VCNL4010_LOW_THR_LO 0x8b /* Low threshold, LSB */
+#define VCNL4010_HIGH_THR_HI 0x8c /* High threshold, MSB */
+#define VCNL4010_HIGH_THR_LO 0x8d /* High threshold, LSB */
+#define VCNL4010_ISR 0x8e /* Interrupt status */
#define VCNL4200_AL_CONF 0x00 /* Ambient light configuration */
#define VCNL4200_PS_CONF1 0x03 /* Proximity configuration */
@@ -57,6 +70,36 @@
#define VCNL4000_PS_RDY BIT(5) /* proximity data ready? */
#define VCNL4000_AL_OD BIT(4) /* start on-demand ALS measurement */
#define VCNL4000_PS_OD BIT(3) /* start on-demand proximity measurement */
+#define VCNL4000_ALS_EN BIT(2) /* start ALS measurement */
+#define VCNL4000_PROX_EN BIT(1) /* start proximity measurement */
+#define VCNL4000_SELF_TIMED_EN BIT(0) /* start self-timed measurement */
+
+/* Bit masks for interrupt registers. */
+#define VCNL4010_INT_THR_SEL BIT(0) /* Select threshold interrupt source */
+#define VCNL4010_INT_THR_EN BIT(1) /* Threshold interrupt type */
+#define VCNL4010_INT_ALS_EN BIT(2) /* Enable on ALS data ready */
+#define VCNL4010_INT_PROX_EN BIT(3) /* Enable on proximity data ready */
+
+#define VCNL4010_INT_THR_HIGH 0 /* High threshold exceeded */
+#define VCNL4010_INT_THR_LOW 1 /* Low threshold exceeded */
+#define VCNL4010_INT_ALS 2 /* ALS data ready */
+#define VCNL4010_INT_PROXIMITY 3 /* Proximity data ready */
+
+#define VCNL4010_INT_THR \
+ (BIT(VCNL4010_INT_THR_LOW) | BIT(VCNL4010_INT_THR_HIGH))
+#define VCNL4010_INT_DRDY \
+ (BIT(VCNL4010_INT_PROXIMITY) | BIT(VCNL4010_INT_ALS))
+
+static const int vcnl4010_prox_sampling_frequency[][2] = {
+ {1, 950000},
+ {3, 906250},
+ {7, 812500},
+ {16, 625000},
+ {31, 250000},
+ {62, 500000},
+ {125, 0},
+ {250, 0},
+};
#define VCNL4000_SLEEP_DELAY_MS 2000 /* before we enter pm_runtime_suspend */
@@ -88,6 +131,10 @@ struct vcnl4000_data {
struct vcnl4000_chip_spec {
const char *prod;
+ struct iio_chan_spec const *channels;
+ const int num_channels;
+ const struct iio_info *info;
+ bool irq_support;
int (*init)(struct vcnl4000_data *data);
int (*measure_light)(struct vcnl4000_data *data, int *val);
int (*measure_proximity)(struct vcnl4000_data *data, int *val);
@@ -216,11 +263,31 @@ static int vcnl4200_init(struct vcnl4000_data *data)
return 0;
};
+static int vcnl4000_read_data(struct vcnl4000_data *data, u8 data_reg, int *val)
+{
+ s32 ret;
+
+ ret = i2c_smbus_read_word_swapped(data->client, data_reg);
+ if (ret < 0)
+ return ret;
+
+ *val = ret;
+ return 0;
+}
+
+static int vcnl4000_write_data(struct vcnl4000_data *data, u8 data_reg, int val)
+{
+ if (val > U16_MAX)
+ return -ERANGE;
+
+ return i2c_smbus_write_word_swapped(data->client, data_reg, val);
+}
+
+
static int vcnl4000_measure(struct vcnl4000_data *data, u8 req_mask,
u8 rdy_mask, u8 data_reg, int *val)
{
int tries = 20;
- __be16 buf;
int ret;
mutex_lock(&data->vcnl4000_lock);
@@ -247,13 +314,11 @@ static int vcnl4000_measure(struct vcnl4000_data *data, u8 req_mask,
goto fail;
}
- ret = i2c_smbus_read_i2c_block_data(data->client,
- data_reg, sizeof(buf), (u8 *) &buf);
+ ret = vcnl4000_read_data(data, data_reg, val);
if (ret < 0)
goto fail;
mutex_unlock(&data->vcnl4000_lock);
- *val = be16_to_cpu(buf);
return 0;
@@ -313,67 +378,34 @@ static int vcnl4200_measure_proximity(struct vcnl4000_data *data, int *val)
return vcnl4200_measure(data, &data->vcnl4200_ps, val);
}
-static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = {
- [VCNL4000] = {
- .prod = "VCNL4000",
- .init = vcnl4000_init,
- .measure_light = vcnl4000_measure_light,
- .measure_proximity = vcnl4000_measure_proximity,
- .set_power_state = vcnl4000_set_power_state,
- },
- [VCNL4010] = {
- .prod = "VCNL4010/4020",
- .init = vcnl4000_init,
- .measure_light = vcnl4000_measure_light,
- .measure_proximity = vcnl4000_measure_proximity,
- .set_power_state = vcnl4000_set_power_state,
- },
- [VCNL4040] = {
- .prod = "VCNL4040",
- .init = vcnl4200_init,
- .measure_light = vcnl4200_measure_light,
- .measure_proximity = vcnl4200_measure_proximity,
- .set_power_state = vcnl4200_set_power_state,
- },
- [VCNL4200] = {
- .prod = "VCNL4200",
- .init = vcnl4200_init,
- .measure_light = vcnl4200_measure_light,
- .measure_proximity = vcnl4200_measure_proximity,
- .set_power_state = vcnl4200_set_power_state,
- },
-};
-
-static ssize_t vcnl4000_read_near_level(struct iio_dev *indio_dev,
- uintptr_t priv,
- const struct iio_chan_spec *chan,
- char *buf)
+static int vcnl4010_read_proxy_samp_freq(struct vcnl4000_data *data, int *val,
+ int *val2)
{
- struct vcnl4000_data *data = iio_priv(indio_dev);
+ int ret;
- return sprintf(buf, "%u\n", data->near_level);
+ ret = i2c_smbus_read_byte_data(data->client, VCNL4010_PROX_RATE);
+ if (ret < 0)
+ return ret;
+
+ if (ret >= ARRAY_SIZE(vcnl4010_prox_sampling_frequency))
+ return -EINVAL;
+
+ *val = vcnl4010_prox_sampling_frequency[ret][0];
+ *val2 = vcnl4010_prox_sampling_frequency[ret][1];
+
+ return 0;
}
-static const struct iio_chan_spec_ext_info vcnl4000_ext_info[] = {
- {
- .name = "nearlevel",
- .shared = IIO_SEPARATE,
- .read = vcnl4000_read_near_level,
- },
- { /* sentinel */ }
-};
+static bool vcnl4010_is_in_periodic_mode(struct vcnl4000_data *data)
+{
+ int ret;
-static const struct iio_chan_spec vcnl4000_channels[] = {
- {
- .type = IIO_LIGHT,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
- BIT(IIO_CHAN_INFO_SCALE),
- }, {
- .type = IIO_PROXIMITY,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
- .ext_info = vcnl4000_ext_info,
- }
-};
+ ret = i2c_smbus_read_byte_data(data->client, VCNL4000_COMMAND);
+ if (ret < 0)
+ return false;
+
+ return !!(ret & VCNL4000_SELF_TIMED_EN);
+}
static int vcnl4000_set_pm_runtime_state(struct vcnl4000_data *data, bool on)
{
@@ -433,10 +465,571 @@ static int vcnl4000_read_raw(struct iio_dev *indio_dev,
}
}
+static int vcnl4010_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val, int *val2, long mask)
+{
+ int ret;
+ struct vcnl4000_data *data = iio_priv(indio_dev);
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ case IIO_CHAN_INFO_SCALE:
+ ret = iio_device_claim_direct_mode(indio_dev);
+ if (ret)
+ return ret;
+
+ /* Protect against event capture. */
+ if (vcnl4010_is_in_periodic_mode(data)) {
+ ret = -EBUSY;
+ } else {
+ ret = vcnl4000_read_raw(indio_dev, chan, val, val2,
+ mask);
+ }
+
+ iio_device_release_direct_mode(indio_dev);
+ return ret;
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ switch (chan->type) {
+ case IIO_PROXIMITY:
+ ret = vcnl4010_read_proxy_samp_freq(data, val, val2);
+ if (ret < 0)
+ return ret;
+ return IIO_VAL_INT_PLUS_MICRO;
+ default:
+ return -EINVAL;
+ }
+ default:
+ return -EINVAL;
+ }
+}
+
+static int vcnl4010_read_avail(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ const int **vals, int *type, int *length,
+ long mask)
+{
+ switch (mask) {
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ *vals = (int *)vcnl4010_prox_sampling_frequency;
+ *type = IIO_VAL_INT_PLUS_MICRO;
+ *length = 2 * ARRAY_SIZE(vcnl4010_prox_sampling_frequency);
+ return IIO_AVAIL_LIST;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int vcnl4010_write_proxy_samp_freq(struct vcnl4000_data *data, int val,
+ int val2)
+{
+ unsigned int i;
+ int index = -1;
+
+ for (i = 0; i < ARRAY_SIZE(vcnl4010_prox_sampling_frequency); i++) {
+ if (val == vcnl4010_prox_sampling_frequency[i][0] &&
+ val2 == vcnl4010_prox_sampling_frequency[i][1]) {
+ index = i;
+ break;
+ }
+ }
+
+ if (index < 0)
+ return -EINVAL;
+
+ return i2c_smbus_write_byte_data(data->client, VCNL4010_PROX_RATE,
+ index);
+}
+
+static int vcnl4010_write_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int val, int val2, long mask)
+{
+ int ret;
+ struct vcnl4000_data *data = iio_priv(indio_dev);
+
+ ret = iio_device_claim_direct_mode(indio_dev);
+ if (ret)
+ return ret;
+
+ /* Protect against event capture. */
+ if (vcnl4010_is_in_periodic_mode(data)) {
+ ret = -EBUSY;
+ goto end;
+ }
+
+ switch (mask) {
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ switch (chan->type) {
+ case IIO_PROXIMITY:
+ ret = vcnl4010_write_proxy_samp_freq(data, val, val2);
+ goto end;
+ default:
+ ret = -EINVAL;
+ goto end;
+ }
+ default:
+ ret = -EINVAL;
+ goto end;
+ }
+
+end:
+ iio_device_release_direct_mode(indio_dev);
+ return ret;
+}
+
+static int vcnl4010_read_event(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir,
+ enum iio_event_info info,
+ int *val, int *val2)
+{
+ int ret;
+ struct vcnl4000_data *data = iio_priv(indio_dev);
+
+ switch (info) {
+ case IIO_EV_INFO_VALUE:
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ ret = vcnl4000_read_data(data, VCNL4010_HIGH_THR_HI,
+ val);
+ if (ret < 0)
+ return ret;
+ return IIO_VAL_INT;
+ case IIO_EV_DIR_FALLING:
+ ret = vcnl4000_read_data(data, VCNL4010_LOW_THR_HI,
+ val);
+ if (ret < 0)
+ return ret;
+ return IIO_VAL_INT;
+ default:
+ return -EINVAL;
+ }
+ default:
+ return -EINVAL;
+ }
+}
+
+static int vcnl4010_write_event(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir,
+ enum iio_event_info info,
+ int val, int val2)
+{
+ int ret;
+ struct vcnl4000_data *data = iio_priv(indio_dev);
+
+ switch (info) {
+ case IIO_EV_INFO_VALUE:
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ ret = vcnl4000_write_data(data, VCNL4010_HIGH_THR_HI,
+ val);
+ if (ret < 0)
+ return ret;
+ return IIO_VAL_INT;
+ case IIO_EV_DIR_FALLING:
+ ret = vcnl4000_write_data(data, VCNL4010_LOW_THR_HI,
+ val);
+ if (ret < 0)
+ return ret;
+ return IIO_VAL_INT;
+ default:
+ return -EINVAL;
+ }
+ default:
+ return -EINVAL;
+ }
+}
+
+static bool vcnl4010_is_thr_enabled(struct vcnl4000_data *data)
+{
+ int ret;
+
+ ret = i2c_smbus_read_byte_data(data->client, VCNL4010_INT_CTRL);
+ if (ret < 0)
+ return false;
+
+ return !!(ret & VCNL4010_INT_THR_EN);
+}
+
+static int vcnl4010_read_event_config(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir)
+{
+ struct vcnl4000_data *data = iio_priv(indio_dev);
+
+ switch (chan->type) {
+ case IIO_PROXIMITY:
+ return vcnl4010_is_thr_enabled(data);
+ default:
+ return -EINVAL;
+ }
+}
+
+static int vcnl4010_config_threshold(struct iio_dev *indio_dev, bool state)
+{
+ struct vcnl4000_data *data = iio_priv(indio_dev);
+ int ret;
+ int icr;
+ int command;
+
+ if (state) {
+ ret = iio_device_claim_direct_mode(indio_dev);
+ if (ret)
+ return ret;
+
+ /* Enable periodic measurement of proximity data. */
+ command = VCNL4000_SELF_TIMED_EN | VCNL4000_PROX_EN;
+
+ /*
+ * Enable interrupts on threshold, for proximity data by
+ * default.
+ */
+ icr = VCNL4010_INT_THR_EN;
+ } else {
+ if (!vcnl4010_is_thr_enabled(data))
+ return 0;
+
+ command = 0;
+ icr = 0;
+ }
+
+ ret = i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND,
+ command);
+ if (ret < 0)
+ goto end;
+
+ ret = i2c_smbus_write_byte_data(data->client, VCNL4010_INT_CTRL, icr);
+
+end:
+ if (state)
+ iio_device_release_direct_mode(indio_dev);
+
+ return ret;
+}
+
+static int vcnl4010_write_event_config(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir,
+ int state)
+{
+ switch (chan->type) {
+ case IIO_PROXIMITY:
+ return vcnl4010_config_threshold(indio_dev, state);
+ default:
+ return -EINVAL;
+ }
+}
+
+static ssize_t vcnl4000_read_near_level(struct iio_dev *indio_dev,
+ uintptr_t priv,
+ const struct iio_chan_spec *chan,
+ char *buf)
+{
+ struct vcnl4000_data *data = iio_priv(indio_dev);
+
+ return sprintf(buf, "%u\n", data->near_level);
+}
+
+static const struct iio_chan_spec_ext_info vcnl4000_ext_info[] = {
+ {
+ .name = "nearlevel",
+ .shared = IIO_SEPARATE,
+ .read = vcnl4000_read_near_level,
+ },
+ { /* sentinel */ }
+};
+
+static const struct iio_event_spec vcnl4000_event_spec[] = {
+ {
+ .type = IIO_EV_TYPE_THRESH,
+ .dir = IIO_EV_DIR_RISING,
+ .mask_separate = BIT(IIO_EV_INFO_VALUE),
+ }, {
+ .type = IIO_EV_TYPE_THRESH,
+ .dir = IIO_EV_DIR_FALLING,
+ .mask_separate = BIT(IIO_EV_INFO_VALUE),
+ }, {
+ .type = IIO_EV_TYPE_THRESH,
+ .dir = IIO_EV_DIR_EITHER,
+ .mask_separate = BIT(IIO_EV_INFO_ENABLE),
+ }
+};
+
+static const struct iio_chan_spec vcnl4000_channels[] = {
+ {
+ .type = IIO_LIGHT,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_SCALE),
+ }, {
+ .type = IIO_PROXIMITY,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ .ext_info = vcnl4000_ext_info,
+ }
+};
+
+static const struct iio_chan_spec vcnl4010_channels[] = {
+ {
+ .type = IIO_LIGHT,
+ .scan_index = -1,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_SCALE),
+ }, {
+ .type = IIO_PROXIMITY,
+ .scan_index = 0,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_SAMP_FREQ),
+ .info_mask_separate_available = BIT(IIO_CHAN_INFO_SAMP_FREQ),
+ .event_spec = vcnl4000_event_spec,
+ .num_event_specs = ARRAY_SIZE(vcnl4000_event_spec),
+ .ext_info = vcnl4000_ext_info,
+ .scan_type = {
+ .sign = 'u',
+ .realbits = 16,
+ .storagebits = 16,
+ .endianness = IIO_CPU,
+ },
+ },
+ IIO_CHAN_SOFT_TIMESTAMP(1),
+};
+
static const struct iio_info vcnl4000_info = {
.read_raw = vcnl4000_read_raw,
};
+static const struct iio_info vcnl4010_info = {
+ .read_raw = vcnl4010_read_raw,
+ .read_avail = vcnl4010_read_avail,
+ .write_raw = vcnl4010_write_raw,
+ .read_event_value = vcnl4010_read_event,
+ .write_event_value = vcnl4010_write_event,
+ .read_event_config = vcnl4010_read_event_config,
+ .write_event_config = vcnl4010_write_event_config,
+};
+
+static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = {
+ [VCNL4000] = {
+ .prod = "VCNL4000",
+ .init = vcnl4000_init,
+ .measure_light = vcnl4000_measure_light,
+ .measure_proximity = vcnl4000_measure_proximity,
+ .set_power_state = vcnl4000_set_power_state,
+ .channels = vcnl4000_channels,
+ .num_channels = ARRAY_SIZE(vcnl4000_channels),
+ .info = &vcnl4000_info,
+ .irq_support = false,
+ },
+ [VCNL4010] = {
+ .prod = "VCNL4010/4020",
+ .init = vcnl4000_init,
+ .measure_light = vcnl4000_measure_light,
+ .measure_proximity = vcnl4000_measure_proximity,
+ .set_power_state = vcnl4000_set_power_state,
+ .channels = vcnl4010_channels,
+ .num_channels = ARRAY_SIZE(vcnl4010_channels),
+ .info = &vcnl4010_info,
+ .irq_support = true,
+ },
+ [VCNL4040] = {
+ .prod = "VCNL4040",
+ .init = vcnl4200_init,
+ .measure_light = vcnl4200_measure_light,
+ .measure_proximity = vcnl4200_measure_proximity,
+ .set_power_state = vcnl4200_set_power_state,
+ .channels = vcnl4000_channels,
+ .num_channels = ARRAY_SIZE(vcnl4000_channels),
+ .info = &vcnl4000_info,
+ .irq_support = false,
+ },
+ [VCNL4200] = {
+ .prod = "VCNL4200",
+ .init = vcnl4200_init,
+ .measure_light = vcnl4200_measure_light,
+ .measure_proximity = vcnl4200_measure_proximity,
+ .set_power_state = vcnl4200_set_power_state,
+ .channels = vcnl4000_channels,
+ .num_channels = ARRAY_SIZE(vcnl4000_channels),
+ .info = &vcnl4000_info,
+ .irq_support = false,
+ },
+};
+
+static irqreturn_t vcnl4010_irq_thread(int irq, void *p)
+{
+ struct iio_dev *indio_dev = p;
+ struct vcnl4000_data *data = iio_priv(indio_dev);
+ unsigned long isr;
+ int ret;
+
+ ret = i2c_smbus_read_byte_data(data->client, VCNL4010_ISR);
+ if (ret < 0)
+ goto end;
+
+ isr = ret;
+
+ if (isr & VCNL4010_INT_THR) {
+ if (test_bit(VCNL4010_INT_THR_LOW, &isr)) {
+ iio_push_event(indio_dev,
+ IIO_UNMOD_EVENT_CODE(
+ IIO_PROXIMITY,
+ 1,
+ IIO_EV_TYPE_THRESH,
+ IIO_EV_DIR_FALLING),
+ iio_get_time_ns(indio_dev));
+ }
+
+ if (test_bit(VCNL4010_INT_THR_HIGH, &isr)) {
+ iio_push_event(indio_dev,
+ IIO_UNMOD_EVENT_CODE(
+ IIO_PROXIMITY,
+ 1,
+ IIO_EV_TYPE_THRESH,
+ IIO_EV_DIR_RISING),
+ iio_get_time_ns(indio_dev));
+ }
+
+ i2c_smbus_write_byte_data(data->client, VCNL4010_ISR,
+ isr & VCNL4010_INT_THR);
+ }
+
+ if (isr & VCNL4010_INT_DRDY && iio_buffer_enabled(indio_dev))
+ iio_trigger_poll_chained(indio_dev->trig);
+
+end:
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t vcnl4010_trigger_handler(int irq, void *p)
+{
+ struct iio_poll_func *pf = p;
+ struct iio_dev *indio_dev = pf->indio_dev;
+ struct vcnl4000_data *data = iio_priv(indio_dev);
+ const unsigned long *active_scan_mask = indio_dev->active_scan_mask;
+ u16 buffer[8] = {0}; /* 1x16-bit + ts */
+ bool data_read = false;
+ unsigned long isr;
+ int val = 0;
+ int ret;
+
+ ret = i2c_smbus_read_byte_data(data->client, VCNL4010_ISR);
+ if (ret < 0)
+ goto end;
+
+ isr = ret;
+
+ if (test_bit(0, active_scan_mask)) {
+ if (test_bit(VCNL4010_INT_PROXIMITY, &isr)) {
+ ret = vcnl4000_read_data(data,
+ VCNL4000_PS_RESULT_HI,
+ &val);
+ if (ret < 0)
+ goto end;
+
+ buffer[0] = val;
+ data_read = true;
+ }
+ }
+
+ ret = i2c_smbus_write_byte_data(data->client, VCNL4010_ISR,
+ isr & VCNL4010_INT_DRDY);
+ if (ret < 0)
+ goto end;
+
+ if (!data_read)
+ goto end;
+
+ iio_push_to_buffers_with_timestamp(indio_dev, buffer,
+ iio_get_time_ns(indio_dev));
+
+end:
+ iio_trigger_notify_done(indio_dev->trig);
+ return IRQ_HANDLED;
+}
+
+static int vcnl4010_buffer_postenable(struct iio_dev *indio_dev)
+{
+ struct vcnl4000_data *data = iio_priv(indio_dev);
+ int ret;
+ int cmd;
+
+ ret = iio_triggered_buffer_postenable(indio_dev);
+ if (ret)
+ return ret;
+
+ /* Do not enable the buffer if we are already capturing events. */
+ if (vcnl4010_is_in_periodic_mode(data)) {
+ ret = -EBUSY;
+ goto end;
+ }
+
+ ret = i2c_smbus_write_byte_data(data->client, VCNL4010_INT_CTRL,
+ VCNL4010_INT_PROX_EN);
+ if (ret < 0)
+ goto end;
+
+ cmd = VCNL4000_SELF_TIMED_EN | VCNL4000_PROX_EN;
+ ret = i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND, cmd);
+ if (ret < 0)
+ goto end;
+
+ return 0;
+end:
+ iio_triggered_buffer_predisable(indio_dev);
+
+ return ret;
+}
+
+static int vcnl4010_buffer_predisable(struct iio_dev *indio_dev)
+{
+ struct vcnl4000_data *data = iio_priv(indio_dev);
+ int ret, ret_disable;
+
+ ret = i2c_smbus_write_byte_data(data->client, VCNL4010_INT_CTRL, 0);
+ if (ret < 0)
+ goto end;
+
+ ret = i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND, 0);
+
+end:
+ ret_disable = iio_triggered_buffer_predisable(indio_dev);
+ if (ret == 0)
+ ret = ret_disable;
+
+ return ret;
+}
+
+static const struct iio_buffer_setup_ops vcnl4010_buffer_ops = {
+ .postenable = &vcnl4010_buffer_postenable,
+ .predisable = &vcnl4010_buffer_predisable,
+};
+
+static const struct iio_trigger_ops vcnl4010_trigger_ops = {
+ .validate_device = iio_trigger_validate_own_device,
+};
+
+static int vcnl4010_probe_trigger(struct iio_dev *indio_dev)
+{
+ struct vcnl4000_data *data = iio_priv(indio_dev);
+ struct i2c_client *client = data->client;
+ struct iio_trigger *trigger;
+
+ trigger = devm_iio_trigger_alloc(&client->dev, "%s-dev%d",
+ indio_dev->name, indio_dev->id);
+ if (!trigger)
+ return -ENOMEM;
+
+ trigger->dev.parent = &client->dev;
+ trigger->ops = &vcnl4010_trigger_ops;
+ iio_trigger_set_drvdata(trigger, indio_dev);
+
+ return devm_iio_trigger_register(&client->dev, trigger);
+}
+
static int vcnl4000_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -466,12 +1059,39 @@ static int vcnl4000_probe(struct i2c_client *client,
data->near_level = 0;
indio_dev->dev.parent = &client->dev;
- indio_dev->info = &vcnl4000_info;
- indio_dev->channels = vcnl4000_channels;
- indio_dev->num_channels = ARRAY_SIZE(vcnl4000_channels);
+ indio_dev->info = data->chip_spec->info;
+ indio_dev->channels = data->chip_spec->channels;
+ indio_dev->num_channels = data->chip_spec->num_channels;
indio_dev->name = VCNL4000_DRV_NAME;
indio_dev->modes = INDIO_DIRECT_MODE;
+ if (client->irq && data->chip_spec->irq_support) {
+ ret = devm_iio_triggered_buffer_setup(&client->dev, indio_dev,
+ NULL,
+ vcnl4010_trigger_handler,
+ &vcnl4010_buffer_ops);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "unable to setup iio triggered buffer\n");
+ return ret;
+ }
+
+ ret = devm_request_threaded_irq(&client->dev, client->irq,
+ NULL, vcnl4010_irq_thread,
+ IRQF_TRIGGER_FALLING |
+ IRQF_ONESHOT,
+ "vcnl4010_irq",
+ indio_dev);
+ if (ret < 0) {
+ dev_err(&client->dev, "irq request failed\n");
+ return ret;
+ }
+
+ ret = vcnl4010_probe_trigger(indio_dev);
+ if (ret < 0)
+ return ret;
+ }
+
ret = pm_runtime_set_active(&client->dev);
if (ret < 0)
goto fail_poweroff;
@@ -565,5 +1185,6 @@ static struct i2c_driver vcnl4000_driver = {
module_i2c_driver(vcnl4000_driver);
MODULE_AUTHOR("Peter Meerwald <pmeerw@pmeerw.net>");
+MODULE_AUTHOR("Mathieu Othacehe <m.othacehe@gmail.com>");
MODULE_DESCRIPTION("Vishay VCNL4000 proximity/ambient light sensor driver");
MODULE_LICENSE("GPL");
diff --git a/drivers/iio/light/vl6180.c b/drivers/iio/light/vl6180.c
index d9533a76b8f6..ed7b02765b97 100644
--- a/drivers/iio/light/vl6180.c
+++ b/drivers/iio/light/vl6180.c
@@ -16,6 +16,7 @@
*/
#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/i2c.h>
#include <linux/mutex.h>
#include <linux/err.h>
@@ -537,7 +538,7 @@ MODULE_DEVICE_TABLE(i2c, vl6180_id);
static struct i2c_driver vl6180_driver = {
.driver = {
.name = VL6180_DRV_NAME,
- .of_match_table = of_match_ptr(vl6180_of_match),
+ .of_match_table = vl6180_of_match,
},
.probe = vl6180_probe,
.id_table = vl6180_id,
diff --git a/drivers/iio/light/zopt2201.c b/drivers/iio/light/zopt2201.c
index 5f54f39e7a4c..80ae530720cd 100644
--- a/drivers/iio/light/zopt2201.c
+++ b/drivers/iio/light/zopt2201.c
@@ -19,6 +19,8 @@
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
+#include <asm/unaligned.h>
+
#define ZOPT2201_DRV_NAME "zopt2201"
/* Registers */
@@ -219,7 +221,7 @@ static int zopt2201_read(struct zopt2201_data *data, u8 reg)
goto fail;
mutex_unlock(&data->lock);
- return (buf[2] << 16) | (buf[1] << 8) | buf[0];
+ return get_unaligned_le24(&buf[0]);
fail:
mutex_unlock(&data->lock);
generated by cgit v1.2.3 (git 2.39.0) at 2024-09-02 00:58:40 +0300