1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/iio/pressure/abp2030pa.h b/drivers/iio/pressure/abp2030pa.h
new file mode 100644
index 000000000000..57e5ed784686
--- /dev/null
+++ b/drivers/iio/pressure/abp2030pa.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Honeywell ABP2 series pressure sensor driver
+ *
+ * Copyright (c) 2025 Petre Rodan <petre.rodan@subdimension.ro>
+ */
+
+#ifndef _ABP2030PA_H
+#define _ABP2030PA_H
+
+#include <linux/completion.h>
+#include <linux/types.h>
+
+#include <linux/iio/iio.h>
+
+#define ABP2_MEASUREMENT_RD_SIZE 7
+
+struct device;
+
+struct abp2_data;
+struct abp2_ops;
+
+enum abp2_func_id {
+	ABP2_FUNCTION_A,
+};
+
+/**
+ * struct abp2_data
+ * @dev: current device structure
+ * @ops: pointers for bus specific read and write functions
+ * @pmin: minimal pressure in pascal
+ * @pmax: maximal pressure in pascal
+ * @outmin: minimum raw pressure in counts (based on transfer function)
+ * @outmax: maximum raw pressure in counts (based on transfer function)
+ * @function: transfer function
+ * @p_scale: pressure scale
+ * @p_scale_dec: pressure scale, decimal number
+ * @p_offset: pressure offset
+ * @irq: end of conversion - applies only to the i2c sensor
+ * @completion: handshake from irq to read
+ * @scan: channel values for buffered mode
+ * @tx_buf: transmit buffer used during the SPI communication
+ * @rx_buf: raw data provided by sensor
+ */
+struct abp2_data {
+	struct device *dev;
+	const struct abp2_ops *ops;
+	s32 pmin;
+	s32 pmax;
+	u32 outmin;
+	u32 outmax;
+	enum abp2_func_id function;
+	int p_scale;
+	int p_scale_dec;
+	int p_offset;
+	int irq;
+	struct completion completion;
+	struct {
+		u32 chan[2];
+		aligned_s64 timestamp;
+	} scan;
+	u8 rx_buf[ABP2_MEASUREMENT_RD_SIZE] __aligned(IIO_DMA_MINALIGN);
+	u8 tx_buf[ABP2_MEASUREMENT_RD_SIZE];
+};
+
+struct abp2_ops {
+	int (*read)(struct abp2_data *data, u8 cmd, u8 nbytes);
+	int (*write)(struct abp2_data *data, u8 cmd, u8 nbytes);
+};
+
+int abp2_common_probe(struct device *dev, const struct abp2_ops *ops, int irq);
+
+#endif