1 /*
2 * Copyright (C) 2015-2020 Alibaba Group Holding Limited
3 */
4
5 #include "aos/hal/i2s.h"
6
7
8 /**
9 * Initialises a I2S dev
10 *
11 * @param[in] i2s the dev which should be initialised
12 *
13 * @return 0 : on success, EIO : if an error occurred with any step
14 */
hal_i2s_init(i2s_dev_t * i2s)15 int32_t hal_i2s_init(i2s_dev_t *i2s)
16 {
17 return 0;
18 }
19
20 /**
21 * Transmit data on a I2S dev
22 *
23 * @param[in] i2s the I2S dev
24 * @param[in] data pointer to the start of data
25 * @param[in] size number of bytes to transmit
26 * @param[in] timeout timeout in milisecond, set this value to HAL_WAIT_FOREVER
27 * if you want to wait forever
28 *
29 * @return 0 : on success, EIO : if an error occurred with any step
30 */
hal_i2s_send(i2s_dev_t * i2s,const void * data,uint32_t size,uint32_t timeout)31 int32_t hal_i2s_send(i2s_dev_t *i2s, const void *data, uint32_t size, uint32_t timeout)
32 {
33 return 0;
34 }
35
36 /**
37 * Receive data on a I2S dev
38 *
39 * @param[in] i2s the I2S dev
40 * @param[out] data pointer to the buffer which will store incoming data
41 * @param[in] size number of bytes to receive
42 * @param[in] timeout timeout in milisecond, set this value to HAL_WAIT_FOREVER
43 * if you want to wait forever
44 *
45 * @return 0 : on success, EIO : if an error occurred with any step
46 */
hal_i2s_recv(i2s_dev_t * i2s,void * data,uint32_t size,uint32_t timeout)47 int32_t hal_i2s_recv(i2s_dev_t *i2s, void *data, uint32_t size, uint32_t timeout)
48 {
49 return 0;
50 }
51
52 /**
53 * Pause a I2S dev
54 *
55 * @param[in] i2s the dev which should be deinitialised
56 *
57 * @return 0 : on success, EIO : if an error occurred with any step
58 */
hal_i2s_pause(i2s_dev_t * i2s)59 int32_t hal_i2s_pause(i2s_dev_t *i2s)
60 {
61 return 0;
62 }
63
64 /**
65 * Resume a I2S dev
66 *
67 * @param[in] i2s the dev which should be deinitialised
68 *
69 * @return 0 : on success, EIO : if an error occurred with any step
70 */
hal_i2s_resume(i2s_dev_t * i2s)71 int32_t hal_i2s_resume(i2s_dev_t *i2s)
72 {
73 return 0;
74 }
75
76 /**
77 * Stop a I2S dev
78 *
79 * @param[in] i2s the dev which should be deinitialised
80 *
81 * @return 0 : on success, EIO : if an error occurred with any step
82 */
hal_i2s_stop(i2s_dev_t * i2s)83 int32_t hal_i2s_stop(i2s_dev_t *i2s)
84 {
85 return 0;
86 }
87
88 /**
89 * Deinitialises a I2S dev
90 *
91 * @param[in] i2s the dev which should be deinitialised
92 *
93 * @return 0 : on success, EIO : if an error occurred with any step
94 */
hal_i2s_finalize(i2s_dev_t * i2s)95 int32_t hal_i2s_finalize(i2s_dev_t *i2s)
96 {
97 return 0;
98 }
99
100