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authorLinus Walleij <linus.walleij@linaro.org>2016-11-09 16:10:00 +0100
committerJonathan Cameron <jic23@kernel.org>2016-11-12 15:50:10 +0000
commit91a86a3b89462a7b0af8553428a6101df33633ac (patch)
tree6d708dd6672622965f7c80f88da66a6930934a8c /drivers/iio/pressure
parent57d035545165a354a52f5d16d46efbb318a2fff4 (diff)
downloadlinux-91a86a3b89462a7b0af8553428a6101df33633ac.tar.bz2
iio: pressure: st_pressure: inline per-sensor data
We have #defines for all the individual sensor registers and value/mask pairs #defined at the top of the file and used at exactly one spot. This is usually good if the #defines give a meaning to the opaque magic numbers. However in this case, the semantic meaning is inherent in the name of the C99-addressable fields, and that means duplication of information, and only makes the code hard to maintain since you every time have to add a new #define AND update the site where it is to be used. Get rid of the #defines and just open code the values into the appropriate struct elements. Make sure to explicitly address the .hz and .value fields in the st_sensor_odr_avl struct so that the meaning of all values is clear. This patch is purely syntactic should have no semantic effect. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/pressure')
-rw-r--r--drivers/iio/pressure/st_pressure_core.c257
1 files changed, 92 insertions, 165 deletions
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 55df9a75eb3a..e19e0787864c 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -112,115 +112,24 @@
#define ST_PRESS_1_OUT_XL_ADDR 0x28
#define ST_TEMP_1_OUT_L_ADDR 0x2b
-/*
- * CUSTOM VALUES FOR LPS331AP SENSOR
- * See LPS331AP datasheet:
- * http://www2.st.com/resource/en/datasheet/lps331ap.pdf
- */
-#define ST_PRESS_LPS331AP_WAI_EXP 0xbb
-#define ST_PRESS_LPS331AP_ODR_ADDR 0x20
-#define ST_PRESS_LPS331AP_ODR_MASK 0x70
-#define ST_PRESS_LPS331AP_ODR_AVL_1HZ_VAL 0x01
-#define ST_PRESS_LPS331AP_ODR_AVL_7HZ_VAL 0x05
-#define ST_PRESS_LPS331AP_ODR_AVL_13HZ_VAL 0x06
-#define ST_PRESS_LPS331AP_ODR_AVL_25HZ_VAL 0x07
-#define ST_PRESS_LPS331AP_PW_ADDR 0x20
-#define ST_PRESS_LPS331AP_PW_MASK 0x80
-#define ST_PRESS_LPS331AP_FS_ADDR 0x23
-#define ST_PRESS_LPS331AP_FS_MASK 0x30
-#define ST_PRESS_LPS331AP_BDU_ADDR 0x20
-#define ST_PRESS_LPS331AP_BDU_MASK 0x04
-#define ST_PRESS_LPS331AP_DRDY_IRQ_ADDR 0x22
-#define ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK 0x04
-#define ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK 0x20
-#define ST_PRESS_LPS331AP_IHL_IRQ_ADDR 0x22
-#define ST_PRESS_LPS331AP_IHL_IRQ_MASK 0x80
-#define ST_PRESS_LPS331AP_OD_IRQ_ADDR 0x22
-#define ST_PRESS_LPS331AP_OD_IRQ_MASK 0x40
-#define ST_PRESS_LPS331AP_MULTIREAD_BIT true
-
-/*
- * CUSTOM VALUES FOR THE OBSOLETE LPS001WP SENSOR
- */
-
/* LPS001WP pressure resolution */
#define ST_PRESS_LPS001WP_LSB_PER_MBAR 16UL
/* LPS001WP temperature resolution */
#define ST_PRESS_LPS001WP_LSB_PER_CELSIUS 64UL
-
-#define ST_PRESS_LPS001WP_WAI_EXP 0xba
-#define ST_PRESS_LPS001WP_ODR_ADDR 0x20
-#define ST_PRESS_LPS001WP_ODR_MASK 0x30
-#define ST_PRESS_LPS001WP_ODR_AVL_1HZ_VAL 0x01
-#define ST_PRESS_LPS001WP_ODR_AVL_7HZ_VAL 0x02
-#define ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL 0x03
-#define ST_PRESS_LPS001WP_PW_ADDR 0x20
-#define ST_PRESS_LPS001WP_PW_MASK 0x40
+/* LPS001WP pressure gain */
#define ST_PRESS_LPS001WP_FS_AVL_PRESS_GAIN \
(100000000UL / ST_PRESS_LPS001WP_LSB_PER_MBAR)
-#define ST_PRESS_LPS001WP_BDU_ADDR 0x20
-#define ST_PRESS_LPS001WP_BDU_MASK 0x04
-#define ST_PRESS_LPS001WP_MULTIREAD_BIT true
+/* LPS001WP pressure and temp L addresses */
#define ST_PRESS_LPS001WP_OUT_L_ADDR 0x28
#define ST_TEMP_LPS001WP_OUT_L_ADDR 0x2a
-/*
- * CUSTOM VALUES FOR LPS25H SENSOR
- * See LPS25H datasheet:
- * http://www2.st.com/resource/en/datasheet/lps25h.pdf
- */
-#define ST_PRESS_LPS25H_WAI_EXP 0xbd
-#define ST_PRESS_LPS25H_ODR_ADDR 0x20
-#define ST_PRESS_LPS25H_ODR_MASK 0x70
-#define ST_PRESS_LPS25H_ODR_AVL_1HZ_VAL 0x01
-#define ST_PRESS_LPS25H_ODR_AVL_7HZ_VAL 0x02
-#define ST_PRESS_LPS25H_ODR_AVL_13HZ_VAL 0x03
-#define ST_PRESS_LPS25H_ODR_AVL_25HZ_VAL 0x04
-#define ST_PRESS_LPS25H_PW_ADDR 0x20
-#define ST_PRESS_LPS25H_PW_MASK 0x80
-#define ST_PRESS_LPS25H_BDU_ADDR 0x20
-#define ST_PRESS_LPS25H_BDU_MASK 0x04
-#define ST_PRESS_LPS25H_DRDY_IRQ_ADDR 0x23
-#define ST_PRESS_LPS25H_DRDY_IRQ_INT1_MASK 0x01
-#define ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK 0x10
-#define ST_PRESS_LPS25H_IHL_IRQ_ADDR 0x22
-#define ST_PRESS_LPS25H_IHL_IRQ_MASK 0x80
-#define ST_PRESS_LPS25H_OD_IRQ_ADDR 0x22
-#define ST_PRESS_LPS25H_OD_IRQ_MASK 0x40
-#define ST_PRESS_LPS25H_MULTIREAD_BIT true
+/* LPS25H pressure and temp L addresses */
#define ST_PRESS_LPS25H_OUT_XL_ADDR 0x28
#define ST_TEMP_LPS25H_OUT_L_ADDR 0x2b
-/*
- * CUSTOM VALUES FOR LPS22HB SENSOR
- * See LPS22HB datasheet:
- * http://www2.st.com/resource/en/datasheet/lps22hb.pdf
- */
-
/* LPS22HB temperature sensitivity */
#define ST_PRESS_LPS22HB_LSB_PER_CELSIUS 100UL
-#define ST_PRESS_LPS22HB_WAI_EXP 0xb1
-#define ST_PRESS_LPS22HB_ODR_ADDR 0x10
-#define ST_PRESS_LPS22HB_ODR_MASK 0x70
-#define ST_PRESS_LPS22HB_ODR_AVL_1HZ_VAL 0x01
-#define ST_PRESS_LPS22HB_ODR_AVL_10HZ_VAL 0x02
-#define ST_PRESS_LPS22HB_ODR_AVL_25HZ_VAL 0x03
-#define ST_PRESS_LPS22HB_ODR_AVL_50HZ_VAL 0x04
-#define ST_PRESS_LPS22HB_ODR_AVL_75HZ_VAL 0x05
-#define ST_PRESS_LPS22HB_PW_ADDR 0x10
-#define ST_PRESS_LPS22HB_PW_MASK 0x70
-#define ST_PRESS_LPS22HB_BDU_ADDR 0x10
-#define ST_PRESS_LPS22HB_BDU_MASK 0x02
-#define ST_PRESS_LPS22HB_DRDY_IRQ_ADDR 0x12
-#define ST_PRESS_LPS22HB_DRDY_IRQ_INT1_MASK 0x04
-#define ST_PRESS_LPS22HB_DRDY_IRQ_INT2_MASK 0x08
-#define ST_PRESS_LPS22HB_IHL_IRQ_ADDR 0x12
-#define ST_PRESS_LPS22HB_IHL_IRQ_MASK 0x80
-#define ST_PRESS_LPS22HB_OD_IRQ_ADDR 0x12
-#define ST_PRESS_LPS22HB_OD_IRQ_MASK 0x40
-#define ST_PRESS_LPS22HB_MULTIREAD_BIT true
-
static const struct iio_chan_spec st_press_1_channels[] = {
{
.type = IIO_PRESSURE,
@@ -321,7 +230,12 @@ static const struct iio_chan_spec st_press_lps22hb_channels[] = {
static const struct st_sensor_settings st_press_sensors_settings[] = {
{
- .wai = ST_PRESS_LPS331AP_WAI_EXP,
+ /*
+ * CUSTOM VALUES FOR LPS331AP SENSOR
+ * See LPS331AP datasheet:
+ * http://www2.st.com/resource/en/datasheet/lps331ap.pdf
+ */
+ .wai = 0xbb,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LPS331AP_PRESS_DEV_NAME,
@@ -329,24 +243,24 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
.ch = (struct iio_chan_spec *)st_press_1_channels,
.num_ch = ARRAY_SIZE(st_press_1_channels),
.odr = {
- .addr = ST_PRESS_LPS331AP_ODR_ADDR,
- .mask = ST_PRESS_LPS331AP_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0x70,
.odr_avl = {
- { 1, ST_PRESS_LPS331AP_ODR_AVL_1HZ_VAL, },
- { 7, ST_PRESS_LPS331AP_ODR_AVL_7HZ_VAL, },
- { 13, ST_PRESS_LPS331AP_ODR_AVL_13HZ_VAL, },
- { 25, ST_PRESS_LPS331AP_ODR_AVL_25HZ_VAL, },
+ { .hz = 1, .value = 0x01 },
+ { .hz = 7, .value = 0x05 },
+ { .hz = 13, .value = 0x06 },
+ { .hz = 25, .value = 0x07 },
},
},
.pw = {
- .addr = ST_PRESS_LPS331AP_PW_ADDR,
- .mask = ST_PRESS_LPS331AP_PW_MASK,
+ .addr = 0x20,
+ .mask = 0x80,
.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
.fs = {
- .addr = ST_PRESS_LPS331AP_FS_ADDR,
- .mask = ST_PRESS_LPS331AP_FS_MASK,
+ .addr = 0x23,
+ .mask = 0x30,
.fs_avl = {
/*
* Pressure and temperature sensitivity values
@@ -360,24 +274,27 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
},
},
.bdu = {
- .addr = ST_PRESS_LPS331AP_BDU_ADDR,
- .mask = ST_PRESS_LPS331AP_BDU_MASK,
+ .addr = 0x20,
+ .mask = 0x04,
},
.drdy_irq = {
- .addr = ST_PRESS_LPS331AP_DRDY_IRQ_ADDR,
- .mask_int1 = ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK,
- .mask_int2 = ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK,
- .addr_ihl = ST_PRESS_LPS331AP_IHL_IRQ_ADDR,
- .mask_ihl = ST_PRESS_LPS331AP_IHL_IRQ_MASK,
- .addr_od = ST_PRESS_LPS331AP_OD_IRQ_ADDR,
- .mask_od = ST_PRESS_LPS331AP_OD_IRQ_MASK,
+ .addr = 0x22,
+ .mask_int1 = 0x04,
+ .mask_int2 = 0x20,
+ .addr_ihl = 0x22,
+ .mask_ihl = 0x80,
+ .addr_od = 0x22,
+ .mask_od = 0x40,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
- .multi_read_bit = ST_PRESS_LPS331AP_MULTIREAD_BIT,
+ .multi_read_bit = true,
.bootime = 2,
},
{
- .wai = ST_PRESS_LPS001WP_WAI_EXP,
+ /*
+ * CUSTOM VALUES FOR LPS001WP SENSOR
+ */
+ .wai = 0xba,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LPS001WP_PRESS_DEV_NAME,
@@ -385,17 +302,17 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
.ch = (struct iio_chan_spec *)st_press_lps001wp_channels,
.num_ch = ARRAY_SIZE(st_press_lps001wp_channels),
.odr = {
- .addr = ST_PRESS_LPS001WP_ODR_ADDR,
- .mask = ST_PRESS_LPS001WP_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0x30,
.odr_avl = {
- { 1, ST_PRESS_LPS001WP_ODR_AVL_1HZ_VAL, },
- { 7, ST_PRESS_LPS001WP_ODR_AVL_7HZ_VAL, },
- { 13, ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL, },
+ { .hz = 1, .value = 0x01 },
+ { .hz = 7, .value = 0x02 },
+ { .hz = 13, .value = 0x03 },
},
},
.pw = {
- .addr = ST_PRESS_LPS001WP_PW_ADDR,
- .mask = ST_PRESS_LPS001WP_PW_MASK,
+ .addr = 0x20,
+ .mask = 0x40,
.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
@@ -413,17 +330,22 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
},
},
.bdu = {
- .addr = ST_PRESS_LPS001WP_BDU_ADDR,
- .mask = ST_PRESS_LPS001WP_BDU_MASK,
+ .addr = 0x20,
+ .mask = 0x04,
},
.drdy_irq = {
.addr = 0,
},
- .multi_read_bit = ST_PRESS_LPS001WP_MULTIREAD_BIT,
+ .multi_read_bit = true,
.bootime = 2,
},
{
- .wai = ST_PRESS_LPS25H_WAI_EXP,
+ /*
+ * CUSTOM VALUES FOR LPS25H SENSOR
+ * See LPS25H datasheet:
+ * http://www2.st.com/resource/en/datasheet/lps25h.pdf
+ */
+ .wai = 0xbd,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LPS25H_PRESS_DEV_NAME,
@@ -431,18 +353,18 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
.ch = (struct iio_chan_spec *)st_press_1_channels,
.num_ch = ARRAY_SIZE(st_press_1_channels),
.odr = {
- .addr = ST_PRESS_LPS25H_ODR_ADDR,
- .mask = ST_PRESS_LPS25H_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0x70,
.odr_avl = {
- { 1, ST_PRESS_LPS25H_ODR_AVL_1HZ_VAL, },
- { 7, ST_PRESS_LPS25H_ODR_AVL_7HZ_VAL, },
- { 13, ST_PRESS_LPS25H_ODR_AVL_13HZ_VAL, },
- { 25, ST_PRESS_LPS25H_ODR_AVL_25HZ_VAL, },
+ { .hz = 1, .value = 0x01 },
+ { .hz = 7, .value = 0x02 },
+ { .hz = 13, .value = 0x03 },
+ { .hz = 25, .value = 0x04 },
},
},
.pw = {
- .addr = ST_PRESS_LPS25H_PW_ADDR,
- .mask = ST_PRESS_LPS25H_PW_MASK,
+ .addr = 0x20,
+ .mask = 0x80,
.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
@@ -460,24 +382,29 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
},
},
.bdu = {
- .addr = ST_PRESS_LPS25H_BDU_ADDR,
- .mask = ST_PRESS_LPS25H_BDU_MASK,
+ .addr = 0x20,
+ .mask = 0x04,
},
.drdy_irq = {
- .addr = ST_PRESS_LPS25H_DRDY_IRQ_ADDR,
- .mask_int1 = ST_PRESS_LPS25H_DRDY_IRQ_INT1_MASK,
- .mask_int2 = ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK,
- .addr_ihl = ST_PRESS_LPS25H_IHL_IRQ_ADDR,
- .mask_ihl = ST_PRESS_LPS25H_IHL_IRQ_MASK,
- .addr_od = ST_PRESS_LPS25H_OD_IRQ_ADDR,
- .mask_od = ST_PRESS_LPS25H_OD_IRQ_MASK,
+ .addr = 0x23,
+ .mask_int1 = 0x01,
+ .mask_int2 = 0x10,
+ .addr_ihl = 0x22,
+ .mask_ihl = 0x80,
+ .addr_od = 0x22,
+ .mask_od = 0x40,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
- .multi_read_bit = ST_PRESS_LPS25H_MULTIREAD_BIT,
+ .multi_read_bit = true,
.bootime = 2,
},
{
- .wai = ST_PRESS_LPS22HB_WAI_EXP,
+ /*
+ * CUSTOM VALUES FOR LPS22HB SENSOR
+ * See LPS22HB datasheet:
+ * http://www2.st.com/resource/en/datasheet/lps22hb.pdf
+ */
+ .wai = 0xb1,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LPS22HB_PRESS_DEV_NAME,
@@ -485,19 +412,19 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
.ch = (struct iio_chan_spec *)st_press_lps22hb_channels,
.num_ch = ARRAY_SIZE(st_press_lps22hb_channels),
.odr = {
- .addr = ST_PRESS_LPS22HB_ODR_ADDR,
- .mask = ST_PRESS_LPS22HB_ODR_MASK,
+ .addr = 0x10,
+ .mask = 0x70,
.odr_avl = {
- { 1, ST_PRESS_LPS22HB_ODR_AVL_1HZ_VAL, },
- { 10, ST_PRESS_LPS22HB_ODR_AVL_10HZ_VAL, },
- { 25, ST_PRESS_LPS22HB_ODR_AVL_25HZ_VAL, },
- { 50, ST_PRESS_LPS22HB_ODR_AVL_50HZ_VAL, },
- { 75, ST_PRESS_LPS22HB_ODR_AVL_75HZ_VAL, },
+ { .hz = 1, .value = 0x01 },
+ { .hz = 10, .value = 0x02 },
+ { .hz = 25, .value = 0x03 },
+ { .hz = 50, .value = 0x04 },
+ { .hz = 75, .value = 0x05 },
},
},
.pw = {
- .addr = ST_PRESS_LPS22HB_PW_ADDR,
- .mask = ST_PRESS_LPS22HB_PW_MASK,
+ .addr = 0x10,
+ .mask = 0x70,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
.fs = {
@@ -514,20 +441,20 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
},
},
.bdu = {
- .addr = ST_PRESS_LPS22HB_BDU_ADDR,
- .mask = ST_PRESS_LPS22HB_BDU_MASK,
+ .addr = 0x10,
+ .mask = 0x02,
},
.drdy_irq = {
- .addr = ST_PRESS_LPS22HB_DRDY_IRQ_ADDR,
- .mask_int1 = ST_PRESS_LPS22HB_DRDY_IRQ_INT1_MASK,
- .mask_int2 = ST_PRESS_LPS22HB_DRDY_IRQ_INT2_MASK,
- .addr_ihl = ST_PRESS_LPS22HB_IHL_IRQ_ADDR,
- .mask_ihl = ST_PRESS_LPS22HB_IHL_IRQ_MASK,
- .addr_od = ST_PRESS_LPS22HB_OD_IRQ_ADDR,
- .mask_od = ST_PRESS_LPS22HB_OD_IRQ_MASK,
+ .addr = 0x12,
+ .mask_int1 = 0x04,
+ .mask_int2 = 0x08,
+ .addr_ihl = 0x12,
+ .mask_ihl = 0x80,
+ .addr_od = 0x12,
+ .mask_od = 0x40,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
- .multi_read_bit = ST_PRESS_LPS22HB_MULTIREAD_BIT,
+ .multi_read_bit = true,
},
};