From 04dd17822334871b23ea2862f7798fb0e0007777 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 08:53:19 +0000
Subject: [PATCH] change otg to host mode
---
kernel/include/linux/iio/adc/ad_sigma_delta.h | 74 ++++++------------------------------
1 files changed, 13 insertions(+), 61 deletions(-)
diff --git a/kernel/include/linux/iio/adc/ad_sigma_delta.h b/kernel/include/linux/iio/adc/ad_sigma_delta.h
index 57c122a..7199280 100644
--- a/kernel/include/linux/iio/adc/ad_sigma_delta.h
+++ b/kernel/include/linux/iio/adc/ad_sigma_delta.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Support code for Analog Devices Sigma-Delta ADCs
*
* Copyright 2012 Analog Devices Inc.
* Author: Lars-Peter Clausen <lars@metafoo.de>
- *
- * Licensed under the GPL-2.
*/
#ifndef __AD_SIGMA_DELTA_H__
#define __AD_SIGMA_DELTA_H__
@@ -39,6 +38,9 @@
* if there is just one read-only sample data shift register.
* @addr_shift: Shift of the register address in the communications register.
* @read_mask: Mask for the communications register having the read bit set.
+ * @data_reg: Address of the data register, if 0 the default address of 0x3 will
+ * be used.
+ * @irq_flags: flags for the interrupt used by the triggered buffer
*/
struct ad_sigma_delta_info {
int (*set_channel)(struct ad_sigma_delta *, unsigned int channel);
@@ -47,6 +49,8 @@
bool has_registers;
unsigned int addr_shift;
unsigned int read_mask;
+ unsigned int data_reg;
+ unsigned long irq_flags;
};
/**
@@ -75,8 +79,12 @@
/*
* DMA (thus cache coherency maintenance) requires the
* transfer buffers to live in their own cache lines.
+ * 'tx_buf' is up to 32 bits.
+ * 'rx_buf' is up to 32 bits per sample + 64 bit timestamp,
+ * rounded to 16 bytes to take into account padding.
*/
- uint8_t data[4] ____cacheline_aligned;
+ uint8_t tx_buf[4] ____cacheline_aligned;
+ uint8_t rx_buf[16] __aligned(8);
};
static inline int ad_sigma_delta_set_channel(struct ad_sigma_delta *sd,
@@ -117,6 +125,8 @@
int ad_sigma_delta_single_conversion(struct iio_dev *indio_dev,
const struct iio_chan_spec *chan, int *val);
+int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
+ unsigned int mode, unsigned int channel);
int ad_sd_calibrate_all(struct ad_sigma_delta *sigma_delta,
const struct ad_sd_calib_data *cd, unsigned int n);
int ad_sd_init(struct ad_sigma_delta *sigma_delta, struct iio_dev *indio_dev,
@@ -126,63 +136,5 @@
void ad_sd_cleanup_buffer_and_trigger(struct iio_dev *indio_dev);
int ad_sd_validate_trigger(struct iio_dev *indio_dev, struct iio_trigger *trig);
-
-#define __AD_SD_CHANNEL(_si, _channel1, _channel2, _address, _bits, \
- _storagebits, _shift, _extend_name, _type, _mask_all) \
- { \
- .type = (_type), \
- .differential = (_channel2 == -1 ? 0 : 1), \
- .indexed = 1, \
- .channel = (_channel1), \
- .channel2 = (_channel2), \
- .address = (_address), \
- .extend_name = (_extend_name), \
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
- BIT(IIO_CHAN_INFO_OFFSET), \
- .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
- .info_mask_shared_by_all = _mask_all, \
- .scan_index = (_si), \
- .scan_type = { \
- .sign = 'u', \
- .realbits = (_bits), \
- .storagebits = (_storagebits), \
- .shift = (_shift), \
- .endianness = IIO_BE, \
- }, \
- }
-
-#define AD_SD_DIFF_CHANNEL(_si, _channel1, _channel2, _address, _bits, \
- _storagebits, _shift) \
- __AD_SD_CHANNEL(_si, _channel1, _channel2, _address, _bits, \
- _storagebits, _shift, NULL, IIO_VOLTAGE, \
- BIT(IIO_CHAN_INFO_SAMP_FREQ))
-
-#define AD_SD_SHORTED_CHANNEL(_si, _channel, _address, _bits, \
- _storagebits, _shift) \
- __AD_SD_CHANNEL(_si, _channel, _channel, _address, _bits, \
- _storagebits, _shift, "shorted", IIO_VOLTAGE, \
- BIT(IIO_CHAN_INFO_SAMP_FREQ))
-
-#define AD_SD_CHANNEL(_si, _channel, _address, _bits, \
- _storagebits, _shift) \
- __AD_SD_CHANNEL(_si, _channel, -1, _address, _bits, \
- _storagebits, _shift, NULL, IIO_VOLTAGE, \
- BIT(IIO_CHAN_INFO_SAMP_FREQ))
-
-#define AD_SD_CHANNEL_NO_SAMP_FREQ(_si, _channel, _address, _bits, \
- _storagebits, _shift) \
- __AD_SD_CHANNEL(_si, _channel, -1, _address, _bits, \
- _storagebits, _shift, NULL, IIO_VOLTAGE, 0)
-
-#define AD_SD_TEMP_CHANNEL(_si, _address, _bits, _storagebits, _shift) \
- __AD_SD_CHANNEL(_si, 0, -1, _address, _bits, \
- _storagebits, _shift, NULL, IIO_TEMP, \
- BIT(IIO_CHAN_INFO_SAMP_FREQ))
-
-#define AD_SD_SUPPLY_CHANNEL(_si, _channel, _address, _bits, _storagebits, \
- _shift) \
- __AD_SD_CHANNEL(_si, _channel, -1, _address, _bits, \
- _storagebits, _shift, "supply", IIO_VOLTAGE, \
- BIT(IIO_CHAN_INFO_SAMP_FREQ))
#endif
--
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