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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_S_SYNC_H_INCLUDED
35#define _HPL_SPI_S_SYNC_H_INCLUDED
36
37#include <hpl_spi_sync.h>
38
39/**
40 * \addtogroup hpl_spi HPL SPI
41 *
42 *@{
43 */
44
45#ifdef __cplusplus
46extern "C" {
47#endif
48
Harald Welte863ea292019-02-24 10:05:12 +010049/** Uses common SPI sync device driver. */
Kévin Redon4cd3f7d2019-01-24 17:57:13 +010050#define _spi_s_sync_dev _spi_sync_dev
51
52/**
Harald Welte863ea292019-02-24 10:05:12 +010053 * \name HPL functions
54 */
55//@{
56/**
Kévin Redon4cd3f7d2019-01-24 17:57:13 +010057 * \brief Initialize SPI for access without interrupts
58 * It will load default hardware configuration and software struct.
59 * \param[in, out] dev Pointer to the SPI device instance.
60 * \param[in] hw Pointer to the hardware base.
61 * \return Operation status.
62 * \retval ERR_INVALID_ARG Input parameter problem.
63 * \retval ERR_BUSY SPI hardware not ready (resetting).
64 * \retval ERR_DENIED SPI has been enabled.
65 * \retval 0 Operation done successfully.
66 */
67int32_t _spi_s_sync_init(struct _spi_s_sync_dev *dev, void *const hw);
68
69/**
70 * \brief Initialize SPI for access with interrupts
71 * Disable, reset the hardware and the software struct.
72 * \param[in, out] dev Pointer to the SPI device instance.
73 * \return Operation status.
74 * \retval 0 Operation done successfully.
75 */
76int32_t _spi_s_sync_deinit(struct _spi_s_sync_dev *dev);
77
78/**
79 * \brief Enable SPI for access without interrupts
80 * \param[in, out] dev Pointer to the SPI device instance.
81 * \return Operation status.
82 * \retval ERR_BUSY SPI hardware not ready (resetting).
83 * \retval 0 Operation done successfully.
84 */
85int32_t _spi_s_sync_enable(struct _spi_s_sync_dev *dev);
86
87/**
88 * \brief Disable SPI for access without interrupts
89 * Disable SPI. Deactivate all CS pins if works as master.
90 * \param[in, out] dev Pointer to the SPI device instance.
91 * \return Operation status.
92 * \retval 0 Operation done successfully.
93 */
94int32_t _spi_s_sync_disable(struct _spi_s_sync_dev *dev);
95
96/**
97 * \brief Set SPI transfer mode
98 * Set SPI transfer mode (\ref spi_transfer_mode),
99 * which controls clock polarity and clock phase.
100 * Mode 0: leading edge is rising edge, data sample on leading edge.
101 * Mode 1: leading edge is rising edge, data sample on trailing edge.
102 * Mode 2: leading edge is falling edge, data sample on leading edge.
103 * Mode 3: leading edge is falling edge, data sample on trailing edge.
104 * \param[in, out] dev Pointer to the SPI device instance.
105 * \param[in] mode The SPI transfer mode.
106 * \return Operation status.
107 * \retval ERR_BUSY SPI is not ready to accept new setting.
108 * \retval 0 Operation done successfully.
109 */
110int32_t _spi_s_sync_set_mode(struct _spi_s_sync_dev *dev, const enum spi_transfer_mode mode);
111
112/**
113 * \brief Set SPI baudrate
114 * \param[in, out] dev Pointer to the SPI device instance.
115 * \param[in] char_size The character size, see \ref spi_char_size.
116 * \return Operation status.
117 * \retval ERR_INVALID_ARG The character size is not supported.
118 * \retval ERR_BUSY SPI is not ready to accept new setting.
119 * \retval 0 Operation done successfully.
120 */
121int32_t _spi_s_sync_set_char_size(struct _spi_s_sync_dev *dev, const enum spi_char_size char_size);
122
123/**
124 * \brief Set SPI data order
125 * \param[in, out] dev Pointer to the SPI device instance.
126 * \param[in] dord SPI data order (LSB/MSB first).
127 * \return Operation status.
128 * \retval ERR_INVALID_ARG The character size is not supported.
129 * \retval ERR_BUSY SPI is not ready to accept new setting.
130 * \retval 0 Operation done successfully.
131 */
132int32_t _spi_s_sync_set_data_order(struct _spi_s_sync_dev *dev, const enum spi_data_order dord);
133
134/**
135 * \brief Enable interrupt on character output
136 *
137 * Enable interrupt when a new character can be written
138 * to the SPI device.
139 *
140 * \param[in] dev Pointer to the SPI device instance
141 * \param[in] state true = enable output interrupt
142 * false = disable output interrupt
143 *
144 * \return Status code
145 * \retval 0 Ok status
146 */
147int32_t _spi_s_sync_enable_tx(struct _spi_s_sync_dev *dev, bool state);
148
149/**
150 * \brief Enable interrupt on character input
151 *
152 * Enable interrupt when a new character is ready to be
153 * read from the SPI device.
154 *
155 * \param[in] dev Pointer to the SPI device instance
156 * \param[in] state true = enable input interrupts
157 * false = disable input interrupt
158 *
159 * \return Status code
160 * \retval 0 OK Status
161 */
162int32_t _spi_s_sync_enable_rx(struct _spi_s_sync_dev *dev, bool state);
163
164/**
165 * \brief Read one character to SPI device instance
166 * \param[in, out] dev Pointer to the SPI device instance.
167 *
168 * \return Character read from SPI module
169 */
170uint16_t _spi_s_sync_read_one(struct _spi_s_sync_dev *dev);
171
172/**
173 * \brief Write one character to assigned buffer
174 * \param[in, out] dev Pointer to the SPI device instance.
175 * \param[in] data
176 *
177 * \return Status code of write operation
178 * \retval 0 Write operation OK
179 */
180int32_t _spi_s_sync_write_one(struct _spi_s_sync_dev *dev, uint16_t data);
181
182/**
183 * \brief Check if TX ready
184 *
185 * \param[in] dev Pointer to the SPI device instance
186 *
187 * \return TX ready state
188 * \retval true TX ready
189 * \retval false TX not ready
190 */
191bool _spi_s_sync_is_tx_ready(struct _spi_s_sync_dev *dev);
192
193/**
194 * \brief Check if RX character ready
195 *
196 * \param[in] dev Pointer to the SPI device instance
197 *
198 * \return RX character ready state
199 * \retval true RX character ready
200 * \retval false RX character not ready
201 */
202bool _spi_s_sync_is_rx_ready(struct _spi_s_sync_dev *dev);
203
204/**
205 * \brief Check if SS deactiviation detected
206 *
207 * \param[in] dev Pointer to the SPI device instance
208 *
209 * \return SS deactiviation state
210 * \retval true SS deactiviation detected
211 * \retval false SS deactiviation not detected
212 */
213bool _spi_s_sync_is_ss_deactivated(struct _spi_s_sync_dev *dev);
214
215/**
216 * \brief Check if error is detected
217 *
218 * \param[in] dev Pointer to the SPI device instance
219 *
220 * \return Error detection state
221 * \retval true Error detected
222 * \retval false Error not detected
223 */
224bool _spi_s_sync_is_error(struct _spi_s_sync_dev *dev);
Harald Welte863ea292019-02-24 10:05:12 +0100225//@}
Kévin Redon4cd3f7d2019-01-24 17:57:13 +0100226
227#ifdef __cplusplus
228}
229#endif
230
231/**@}*/
232#endif /* ifndef _HPL_SPI_S_SYNC_H_INCLUDED */