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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/iio/health/afe440x.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/iio/health/afe440x.h')
-rw-r--r--drivers/iio/health/afe440x.h155
1 files changed, 155 insertions, 0 deletions
diff --git a/drivers/iio/health/afe440x.h b/drivers/iio/health/afe440x.h
new file mode 100644
index 000000000..0adea0047
--- /dev/null
+++ b/drivers/iio/health/afe440x.h
@@ -0,0 +1,155 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AFE440X Heart Rate Monitors and Low-Cost Pulse Oximeters
+ *
+ * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
+ * Andrew F. Davis <afd@ti.com>
+ */
+
+#ifndef _AFE440X_H
+#define _AFE440X_H
+
+/* AFE440X registers */
+#define AFE440X_CONTROL0 0x00
+#define AFE440X_LED2STC 0x01
+#define AFE440X_LED2ENDC 0x02
+#define AFE440X_LED1LEDSTC 0x03
+#define AFE440X_LED1LEDENDC 0x04
+#define AFE440X_ALED2STC 0x05
+#define AFE440X_ALED2ENDC 0x06
+#define AFE440X_LED1STC 0x07
+#define AFE440X_LED1ENDC 0x08
+#define AFE440X_LED2LEDSTC 0x09
+#define AFE440X_LED2LEDENDC 0x0a
+#define AFE440X_ALED1STC 0x0b
+#define AFE440X_ALED1ENDC 0x0c
+#define AFE440X_LED2CONVST 0x0d
+#define AFE440X_LED2CONVEND 0x0e
+#define AFE440X_ALED2CONVST 0x0f
+#define AFE440X_ALED2CONVEND 0x10
+#define AFE440X_LED1CONVST 0x11
+#define AFE440X_LED1CONVEND 0x12
+#define AFE440X_ALED1CONVST 0x13
+#define AFE440X_ALED1CONVEND 0x14
+#define AFE440X_ADCRSTSTCT0 0x15
+#define AFE440X_ADCRSTENDCT0 0x16
+#define AFE440X_ADCRSTSTCT1 0x17
+#define AFE440X_ADCRSTENDCT1 0x18
+#define AFE440X_ADCRSTSTCT2 0x19
+#define AFE440X_ADCRSTENDCT2 0x1a
+#define AFE440X_ADCRSTSTCT3 0x1b
+#define AFE440X_ADCRSTENDCT3 0x1c
+#define AFE440X_PRPCOUNT 0x1d
+#define AFE440X_CONTROL1 0x1e
+#define AFE440X_LEDCNTRL 0x22
+#define AFE440X_CONTROL2 0x23
+#define AFE440X_ALARM 0x29
+#define AFE440X_LED2VAL 0x2a
+#define AFE440X_ALED2VAL 0x2b
+#define AFE440X_LED1VAL 0x2c
+#define AFE440X_ALED1VAL 0x2d
+#define AFE440X_LED2_ALED2VAL 0x2e
+#define AFE440X_LED1_ALED1VAL 0x2f
+#define AFE440X_CONTROL3 0x31
+#define AFE440X_PDNCYCLESTC 0x32
+#define AFE440X_PDNCYCLEENDC 0x33
+
+/* CONTROL0 register fields */
+#define AFE440X_CONTROL0_REG_READ BIT(0)
+#define AFE440X_CONTROL0_TM_COUNT_RST BIT(1)
+#define AFE440X_CONTROL0_SW_RESET BIT(3)
+
+/* CONTROL1 register fields */
+#define AFE440X_CONTROL1_TIMEREN BIT(8)
+
+/* TIAGAIN register fields */
+#define AFE440X_TIAGAIN_ENSEPGAIN BIT(15)
+
+/* CONTROL2 register fields */
+#define AFE440X_CONTROL2_PDN_AFE BIT(0)
+#define AFE440X_CONTROL2_PDN_RX BIT(1)
+#define AFE440X_CONTROL2_DYNAMIC4 BIT(3)
+#define AFE440X_CONTROL2_DYNAMIC3 BIT(4)
+#define AFE440X_CONTROL2_DYNAMIC2 BIT(14)
+#define AFE440X_CONTROL2_DYNAMIC1 BIT(20)
+
+/* CONTROL3 register fields */
+#define AFE440X_CONTROL3_CLKDIV GENMASK(2, 0)
+
+/* CONTROL0 values */
+#define AFE440X_CONTROL0_WRITE 0x0
+#define AFE440X_CONTROL0_READ 0x1
+
+#define AFE440X_INTENSITY_CHAN(_index, _mask) \
+ { \
+ .type = IIO_INTENSITY, \
+ .channel = _index, \
+ .address = _index, \
+ .scan_index = _index, \
+ .scan_type = { \
+ .sign = 's', \
+ .realbits = 24, \
+ .storagebits = 32, \
+ .endianness = IIO_CPU, \
+ }, \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
+ _mask, \
+ .indexed = true, \
+ }
+
+#define AFE440X_CURRENT_CHAN(_index) \
+ { \
+ .type = IIO_CURRENT, \
+ .channel = _index, \
+ .address = _index, \
+ .scan_index = -1, \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
+ BIT(IIO_CHAN_INFO_SCALE), \
+ .indexed = true, \
+ .output = true, \
+ }
+
+struct afe440x_val_table {
+ int integer;
+ int fract;
+};
+
+#define AFE440X_TABLE_ATTR(_name, _table) \
+static ssize_t _name ## _show(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ ssize_t len = 0; \
+ int i; \
+ \
+ for (i = 0; i < ARRAY_SIZE(_table); i++) \
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%d.%06u ", \
+ _table[i].integer, \
+ _table[i].fract); \
+ \
+ buf[len - 1] = '\n'; \
+ \
+ return len; \
+} \
+static DEVICE_ATTR_RO(_name)
+
+struct afe440x_attr {
+ struct device_attribute dev_attr;
+ unsigned int field;
+ const struct afe440x_val_table *val_table;
+ unsigned int table_size;
+};
+
+#define to_afe440x_attr(_dev_attr) \
+ container_of(_dev_attr, struct afe440x_attr, dev_attr)
+
+#define AFE440X_ATTR(_name, _field, _table) \
+ struct afe440x_attr afe440x_attr_##_name = { \
+ .dev_attr = __ATTR(_name, (S_IRUGO | S_IWUSR), \
+ afe440x_show_register, \
+ afe440x_store_register), \
+ .field = _field, \
+ .val_table = _table, \
+ .table_size = ARRAY_SIZE(_table), \
+ }
+
+#endif /* _AFE440X_H */