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Kévin Redon4cd3f7d2019-01-24 17:57:13 +01001/**
2 * \file
3 *
4 * \brief SPI related functionality declaration.
5 *
6 * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
7 *
8 * \asf_license_start
9 *
10 * \page License
11 *
12 * Subject to your compliance with these terms, you may use Microchip
13 * software and any derivatives exclusively with Microchip products.
14 * It is your responsibility to comply with third party license terms applicable
15 * to your use of third party software (including open source software) that
16 * may accompany Microchip software.
17 *
18 * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
19 * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
20 * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
21 * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
22 * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
23 * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
24 * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
25 * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT
26 * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
27 * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
28 * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
29 *
30 * \asf_license_stop
31 *
32 */
33
34#ifndef _HPL_SPI_M_SYNC_H_INCLUDED
35#define _HPL_SPI_M_SYNC_H_INCLUDED
36
37#include <hpl_spi.h>
38#include <hpl_spi_sync.h>
39
40/**
41 * \addtogroup hpl_spi HPL SPI
42 *
43 *@{
44 */
45
46#ifdef __cplusplus
47extern "C" {
48#endif
49
Harald Welte863ea292019-02-24 10:05:12 +010050/** Uses common SPI sync device driver. */
Kévin Redon4cd3f7d2019-01-24 17:57:13 +010051#define _spi_m_sync_dev _spi_sync_dev
52
53/**
Harald Welte863ea292019-02-24 10:05:12 +010054 * \name HPL functions
55 */
56//@{
57/**
Kévin Redon4cd3f7d2019-01-24 17:57:13 +010058 * \brief Initialize SPI for access without interrupts
59 * It will load default hardware configuration and software struct.
60 * \param[in, out] dev Pointer to the SPI device instance.
61 * \param[in] hw Pointer to the hardware base.
62 * \return Operation status.
63 * \retval ERR_INVALID_ARG Input parameter problem.
64 * \retval ERR_BUSY SPI hardware not ready (resetting).
65 * \retval ERR_DENIED SPI has been enabled.
66 * \retval 0 Operation done successfully.
67 */
68int32_t _spi_m_sync_init(struct _spi_m_sync_dev *dev, void *const hw);
69
70/**
71 * \brief Deinitialize SPI
72 * Disable, reset the hardware and the software struct.
73 * \param[in, out] dev Pointer to the SPI device instance.
74 * \return Operation status.
75 * \retval 0 Operation done successfully.
76 */
77int32_t _spi_m_sync_deinit(struct _spi_m_sync_dev *dev);
78
79/**
80 * \brief Enable SPI for access without interrupts
81 * \param[in, out] dev Pointer to the SPI device instance.
82 * \return Operation status.
83 * \retval ERR_BUSY SPI hardware not ready (resetting).
84 * \retval 0 Operation done successfully.
85 */
86int32_t _spi_m_sync_enable(struct _spi_m_sync_dev *dev);
87
88/**
89 * \brief Disable SPI for access without interrupts
90 * Disable SPI. Deactivate all CS pins if works as master.
91 * \param[in, out] dev Pointer to the SPI device instance.
92 * \return Operation status.
93 * \retval 0 Operation done successfully.
94 */
95int32_t _spi_m_sync_disable(struct _spi_m_sync_dev *dev);
96
97/**
98 * \brief Set SPI transfer mode
99 * Set SPI transfer mode (\ref spi_transfer_mode),
100 * which controls clock polarity and clock phase.
101 * Mode 0: leading edge is rising edge, data sample on leading edge.
102 * Mode 1: leading edge is rising edge, data sample on trailing edge.
103 * Mode 2: leading edge is falling edge, data sample on leading edge.
104 * Mode 3: leading edge is falling edge, data sample on trailing edge.
105 * \param[in, out] dev Pointer to the SPI device instance.
106 * \param[in] mode The SPI transfer mode.
107 * \return Operation status.
108 * \retval ERR_BUSY SPI is not ready to accept new setting.
109 * \retval 0 Operation done successfully.
110 */
111int32_t _spi_m_sync_set_mode(struct _spi_m_sync_dev *dev, const enum spi_transfer_mode mode);
112
113/**
114 * \brief Set SPI baudrate
115 * \param[in, out] dev Pointer to the SPI device instance.
116 * \param[in] baud_val The SPI baudrate value, see \ref _spi_calc_baud_val() on
117 * how it's generated.
118 * \return Operation status.
119 * \retval ERR_BUSY SPI is not ready to accept new setting.
120 * \retval 0 Operation done successfully.
121 */
122int32_t _spi_m_sync_set_baudrate(struct _spi_m_sync_dev *dev, const uint32_t baud_val);
123
124/**
Harald Welte863ea292019-02-24 10:05:12 +0100125 * \brief Set SPI char size
Kévin Redon4cd3f7d2019-01-24 17:57:13 +0100126 * \param[in, out] dev Pointer to the SPI device instance.
127 * \param[in] char_size The character size, see \ref spi_char_size.
128 * \return Operation status.
129 * \retval ERR_INVALID_ARG The character size is not supported.
130 * \retval ERR_BUSY SPI is not ready to accept new setting.
131 * \retval 0 Operation done successfully.
132 */
133int32_t _spi_m_sync_set_char_size(struct _spi_m_sync_dev *dev, const enum spi_char_size char_size);
134
135/**
136 * \brief Set SPI data order
137 * \param[in, out] dev Pointer to the SPI device instance.
138 * \param[in] dord SPI data order (LSB/MSB first).
139 * \return Operation status.
140 * \retval ERR_INVALID_ARG The character size is not supported.
141 * \retval ERR_BUSY SPI is not ready to accept new setting.
142 * \retval 0 Operation done successfully.
143 */
144int32_t _spi_m_sync_set_data_order(struct _spi_m_sync_dev *dev, const enum spi_data_order dord);
145
146/**
147 * \brief Transfer the whole message without interrupt
148 * Transfer the message, it will keep waiting until the message finish or
149 * error.
150 * \param[in, out] dev Pointer to the SPI device instance.
151 * \param[in] msg Pointer to the message instance to process.
152 * \return Error or number of characters transferred.
153 * \retval ERR_BUSY SPI hardware is not ready to start transfer (not
154 * enabled, busy applying settings, ...).
155 * \retval SPI_ERR_OVERFLOW Overflow error.
156 * \retval >=0 Number of characters transferred.
157 */
158int32_t _spi_m_sync_trans(struct _spi_m_sync_dev *dev, const struct spi_msg *msg);
Harald Welte863ea292019-02-24 10:05:12 +0100159//@}
Kévin Redon4cd3f7d2019-01-24 17:57:13 +0100160
161#ifdef __cplusplus
162}
163#endif
164
165/**@}*/
166#endif /* ifndef _HPL_SPI_M_SYNC_H_INCLUDED */