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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
49/** Uses common SPI async device driver. */
50#define _spi_s_sync_dev _spi_sync_dev
51
52/**
53 * \brief Initialize SPI for access without interrupts
54 * It will load default hardware configuration and software struct.
55 * \param[in, out] dev Pointer to the SPI device instance.
56 * \param[in] hw Pointer to the hardware base.
57 * \return Operation status.
58 * \retval ERR_INVALID_ARG Input parameter problem.
59 * \retval ERR_BUSY SPI hardware not ready (resetting).
60 * \retval ERR_DENIED SPI has been enabled.
61 * \retval 0 Operation done successfully.
62 */
63int32_t _spi_s_sync_init(struct _spi_s_sync_dev *dev, void *const hw);
64
65/**
66 * \brief Initialize SPI for access with interrupts
67 * Disable, reset the hardware and the software struct.
68 * \param[in, out] dev Pointer to the SPI device instance.
69 * \return Operation status.
70 * \retval 0 Operation done successfully.
71 */
72int32_t _spi_s_sync_deinit(struct _spi_s_sync_dev *dev);
73
74/**
75 * \brief Enable SPI for access without interrupts
76 * \param[in, out] dev Pointer to the SPI device instance.
77 * \return Operation status.
78 * \retval ERR_BUSY SPI hardware not ready (resetting).
79 * \retval 0 Operation done successfully.
80 */
81int32_t _spi_s_sync_enable(struct _spi_s_sync_dev *dev);
82
83/**
84 * \brief Disable SPI for access without interrupts
85 * Disable SPI. Deactivate all CS pins if works as master.
86 * \param[in, out] dev Pointer to the SPI device instance.
87 * \return Operation status.
88 * \retval 0 Operation done successfully.
89 */
90int32_t _spi_s_sync_disable(struct _spi_s_sync_dev *dev);
91
92/**
93 * \brief Set SPI transfer mode
94 * Set SPI transfer mode (\ref spi_transfer_mode),
95 * which controls clock polarity and clock phase.
96 * Mode 0: leading edge is rising edge, data sample on leading edge.
97 * Mode 1: leading edge is rising edge, data sample on trailing edge.
98 * Mode 2: leading edge is falling edge, data sample on leading edge.
99 * Mode 3: leading edge is falling edge, data sample on trailing edge.
100 * \param[in, out] dev Pointer to the SPI device instance.
101 * \param[in] mode The SPI transfer mode.
102 * \return Operation status.
103 * \retval ERR_BUSY SPI is not ready to accept new setting.
104 * \retval 0 Operation done successfully.
105 */
106int32_t _spi_s_sync_set_mode(struct _spi_s_sync_dev *dev, const enum spi_transfer_mode mode);
107
108/**
109 * \brief Set SPI baudrate
110 * \param[in, out] dev Pointer to the SPI device instance.
111 * \param[in] char_size The character size, see \ref spi_char_size.
112 * \return Operation status.
113 * \retval ERR_INVALID_ARG The character size is not supported.
114 * \retval ERR_BUSY SPI is not ready to accept new setting.
115 * \retval 0 Operation done successfully.
116 */
117int32_t _spi_s_sync_set_char_size(struct _spi_s_sync_dev *dev, const enum spi_char_size char_size);
118
119/**
120 * \brief Set SPI data order
121 * \param[in, out] dev Pointer to the SPI device instance.
122 * \param[in] dord SPI data order (LSB/MSB first).
123 * \return Operation status.
124 * \retval ERR_INVALID_ARG The character size is not supported.
125 * \retval ERR_BUSY SPI is not ready to accept new setting.
126 * \retval 0 Operation done successfully.
127 */
128int32_t _spi_s_sync_set_data_order(struct _spi_s_sync_dev *dev, const enum spi_data_order dord);
129
130/**
131 * \brief Enable interrupt on character output
132 *
133 * Enable interrupt when a new character can be written
134 * to the SPI device.
135 *
136 * \param[in] dev Pointer to the SPI device instance
137 * \param[in] state true = enable output interrupt
138 * false = disable output interrupt
139 *
140 * \return Status code
141 * \retval 0 Ok status
142 */
143int32_t _spi_s_sync_enable_tx(struct _spi_s_sync_dev *dev, bool state);
144
145/**
146 * \brief Enable interrupt on character input
147 *
148 * Enable interrupt when a new character is ready to be
149 * read from the SPI device.
150 *
151 * \param[in] dev Pointer to the SPI device instance
152 * \param[in] state true = enable input interrupts
153 * false = disable input interrupt
154 *
155 * \return Status code
156 * \retval 0 OK Status
157 */
158int32_t _spi_s_sync_enable_rx(struct _spi_s_sync_dev *dev, bool state);
159
160/**
161 * \brief Read one character to SPI device instance
162 * \param[in, out] dev Pointer to the SPI device instance.
163 *
164 * \return Character read from SPI module
165 */
166uint16_t _spi_s_sync_read_one(struct _spi_s_sync_dev *dev);
167
168/**
169 * \brief Write one character to assigned buffer
170 * \param[in, out] dev Pointer to the SPI device instance.
171 * \param[in] data
172 *
173 * \return Status code of write operation
174 * \retval 0 Write operation OK
175 */
176int32_t _spi_s_sync_write_one(struct _spi_s_sync_dev *dev, uint16_t data);
177
178/**
179 * \brief Check if TX ready
180 *
181 * \param[in] dev Pointer to the SPI device instance
182 *
183 * \return TX ready state
184 * \retval true TX ready
185 * \retval false TX not ready
186 */
187bool _spi_s_sync_is_tx_ready(struct _spi_s_sync_dev *dev);
188
189/**
190 * \brief Check if RX character ready
191 *
192 * \param[in] dev Pointer to the SPI device instance
193 *
194 * \return RX character ready state
195 * \retval true RX character ready
196 * \retval false RX character not ready
197 */
198bool _spi_s_sync_is_rx_ready(struct _spi_s_sync_dev *dev);
199
200/**
201 * \brief Check if SS deactiviation detected
202 *
203 * \param[in] dev Pointer to the SPI device instance
204 *
205 * \return SS deactiviation state
206 * \retval true SS deactiviation detected
207 * \retval false SS deactiviation not detected
208 */
209bool _spi_s_sync_is_ss_deactivated(struct _spi_s_sync_dev *dev);
210
211/**
212 * \brief Check if error is detected
213 *
214 * \param[in] dev Pointer to the SPI device instance
215 *
216 * \return Error detection state
217 * \retval true Error detected
218 * \retval false Error not detected
219 */
220bool _spi_s_sync_is_error(struct _spi_s_sync_dev *dev);
221
222#ifdef __cplusplus
223}
224#endif
225
226/**@}*/
227#endif /* ifndef _HPL_SPI_S_SYNC_H_INCLUDED */