Kévin Redon | 4cd3f7d | 2019-01-24 17:57:13 +0100 | [diff] [blame] | 1 | /** |
| 2 | * \file |
| 3 | * |
| 4 | * \brief I2C Slave Hardware Proxy Layer(HPL) 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 | #ifndef _HPL_I2C_S_ASYNC_H_INCLUDED |
| 34 | #define _HPL_I2C_S_ASYNC_H_INCLUDED |
| 35 | |
| 36 | #include "hpl_i2c_s_sync.h" |
| 37 | #include "hpl_irq.h" |
| 38 | #include "utils.h" |
| 39 | |
| 40 | #ifdef __cplusplus |
| 41 | extern "C" { |
| 42 | #endif |
| 43 | |
| 44 | /** |
| 45 | * \brief i2c callback types |
| 46 | */ |
| 47 | enum _i2c_s_async_callback_type { I2C_S_DEVICE_ERROR, I2C_S_DEVICE_TX, I2C_S_DEVICE_RX_COMPLETE }; |
| 48 | |
| 49 | /** |
| 50 | * \brief Forward declaration of I2C Slave device |
| 51 | */ |
| 52 | struct _i2c_s_async_device; |
| 53 | |
| 54 | /** |
| 55 | * \brief i2c slave callback function type |
| 56 | */ |
| 57 | typedef void (*_i2c_s_async_cb_t)(struct _i2c_s_async_device *device); |
| 58 | |
| 59 | /** |
| 60 | * \brief i2c slave callback pointers structure |
| 61 | */ |
| 62 | struct _i2c_s_async_callback { |
| 63 | void (*error)(struct _i2c_s_async_device *const device); |
| 64 | void (*tx)(struct _i2c_s_async_device *const device); |
| 65 | void (*rx_done)(struct _i2c_s_async_device *const device, const uint8_t data); |
| 66 | }; |
| 67 | |
| 68 | /** |
| 69 | * \brief i2c slave device structure |
| 70 | */ |
| 71 | struct _i2c_s_async_device { |
| 72 | void * hw; |
| 73 | struct _i2c_s_async_callback cb; |
| 74 | struct _irq_descriptor irq; |
| 75 | }; |
| 76 | |
| 77 | /** |
| 78 | * \name HPL functions |
| 79 | */ |
| 80 | |
| 81 | /** |
| 82 | * \brief Initialize asynchronous I2C slave |
| 83 | * |
| 84 | * This function does low level I2C configuration. |
| 85 | * |
| 86 | * \param[in] device The pointer to i2c interrupt device structure |
| 87 | * |
| 88 | * \return Return 0 for success and negative value for error |
| 89 | */ |
| 90 | int32_t _i2c_s_async_init(struct _i2c_s_async_device *const device, void *const hw); |
| 91 | |
| 92 | /** |
| 93 | * \brief Deinitialize asynchronous I2C in interrupt mode |
| 94 | * |
| 95 | * \param[in] device The pointer to i2c device structure |
| 96 | * |
| 97 | * \return Return 0 for success and negative value for error |
| 98 | */ |
| 99 | int32_t _i2c_s_async_deinit(struct _i2c_s_async_device *const device); |
| 100 | |
| 101 | /** |
| 102 | * \brief Enable I2C module |
| 103 | * |
| 104 | * This function does low level I2C enable. |
| 105 | * |
| 106 | * \param[in] device The pointer to i2c slave device structure |
| 107 | * |
| 108 | * \return Return 0 for success and negative value for error |
| 109 | */ |
| 110 | int32_t _i2c_s_async_enable(struct _i2c_s_async_device *const device); |
| 111 | |
| 112 | /** |
| 113 | * \brief Disable I2C module |
| 114 | * |
| 115 | * This function does low level I2C disable. |
| 116 | * |
| 117 | * \param[in] device The pointer to i2c slave device structure |
| 118 | * |
| 119 | * \return Return 0 for success and negative value for error |
| 120 | */ |
| 121 | int32_t _i2c_s_async_disable(struct _i2c_s_async_device *const device); |
| 122 | |
| 123 | /** |
| 124 | * \brief Check if 10-bit addressing mode is on |
| 125 | * |
| 126 | * \param[in] device The pointer to i2c slave device structure |
| 127 | * |
| 128 | * \return Cheking status |
| 129 | * \retval 1 10-bit addressing mode is on |
| 130 | * \retval 0 10-bit addressing mode is off |
| 131 | */ |
| 132 | int32_t _i2c_s_async_is_10bit_addressing_on(const struct _i2c_s_async_device *const device); |
| 133 | |
| 134 | /** |
| 135 | * \brief Set I2C slave address |
| 136 | * |
| 137 | * \param[in] device The pointer to i2c slave device structure |
| 138 | * \param[in] address Address to set |
| 139 | * |
| 140 | * \return Return 0 for success and negative value for error |
| 141 | */ |
| 142 | int32_t _i2c_s_async_set_address(struct _i2c_s_async_device *const device, const uint16_t address); |
| 143 | |
| 144 | /** |
| 145 | * \brief Write a byte to the given I2C instance |
| 146 | * |
| 147 | * \param[in] device The pointer to i2c slave device structure |
| 148 | * \param[in] data Data to write |
| 149 | */ |
| 150 | void _i2c_s_async_write_byte(struct _i2c_s_async_device *const device, const uint8_t data); |
| 151 | |
| 152 | /** |
| 153 | * \brief Retrieve I2C slave status |
| 154 | * |
| 155 | * \param[in] device The pointer to i2c slave device structure |
| 156 | * |
| 157 | *\return I2C slave status |
| 158 | */ |
| 159 | i2c_s_status_t _i2c_s_async_get_status(const struct _i2c_s_async_device *const device); |
| 160 | |
| 161 | /** |
| 162 | * \brief Abort data transmission |
| 163 | * |
| 164 | * \param[in] device The pointer to i2c device structure |
| 165 | * |
| 166 | * \return Return 0 for success and negative value for error |
| 167 | */ |
| 168 | int32_t _i2c_s_async_abort_transmission(const struct _i2c_s_async_device *const device); |
| 169 | |
| 170 | /** |
| 171 | * \brief Enable/disable I2C slave interrupt |
| 172 | * |
| 173 | * param[in] device The pointer to I2C slave device instance |
| 174 | * param[in] type The type of interrupt to disable/enable if applicable |
| 175 | * param[in] disable Enable or disable |
| 176 | */ |
| 177 | int32_t _i2c_s_async_set_irq_state(struct _i2c_s_async_device *const device, const enum _i2c_s_async_callback_type type, |
| 178 | const bool disable); |
| 179 | |
| 180 | #ifdef __cplusplus |
| 181 | } |
| 182 | #endif |
| 183 | |
| 184 | #endif /* _HPL_I2C_S_ASYNC_H_INCLUDED */ |