Marcelo Barros / sens_itf

Generic communication interface between the wireless board (mote) and the sensor board. Any kind of sensor board can be connected to the mote using this specification given it provides a SPI peripheral, one input pin with interrupt capability and one digital output. The sensor board must implement a special register set from which all required information can be retrieved. Protocol: http://is.gd/wuQorh Github: http://is.gd/ySj1L9

Dependencies:   mbed-src

util/buf_io.h@1:acdf490d94a7, 2014-04-08 (annotated)

Committer:
marcelobarrosalmeida
Date:
Tue Apr 08 16:34:20 2014 +0000
Revision:
1:acdf490d94a7
Adding accel to sensor list

Who changed what in which revision?

UserRevisionLine numberNew contents of line
marcelobarrosalmeida 1:acdf490d94a7 1 /**
marcelobarrosalmeida 1:acdf490d94a7 2 @file buf_io.c
marcelobarrosalmeida 1:acdf490d94a7 3
marcelobarrosalmeida 1:acdf490d94a7 4 Several functions for handling data in buffers.
marcelobarrosalmeida 1:acdf490d94a7 5
marcelobarrosalmeida 1:acdf490d94a7 6 Basic functions:
marcelobarrosalmeida 1:acdf490d94a7 7
marcelobarrosalmeida 1:acdf490d94a7 8 buf_io_[get|put][8|16|32|64|f|d]_[f|t][b|l]_ap[r]
marcelobarrosalmeida 1:acdf490d94a7 9
marcelobarrosalmeida 1:acdf490d94a7 10 Notation:
marcelobarrosalmeida 1:acdf490d94a7 11
marcelobarrosalmeida 1:acdf490d94a7 12 8|16|32|64|f|d = data size (f for float, d for double)
marcelobarrosalmeida 1:acdf490d94a7 13 [f|t][b|l] = from/to big/little
marcelobarrosalmeida 1:acdf490d94a7 14 ap[r] = add pointer [reference] at the end
marcelobarrosalmeida 1:acdf490d94a7 15
marcelobarrosalmeida 1:acdf490d94a7 16 Check buf_io.c for a proper implementation of these functions for your platform.
marcelobarrosalmeida 1:acdf490d94a7 17 */
marcelobarrosalmeida 1:acdf490d94a7 18
marcelobarrosalmeida 1:acdf490d94a7 19 #ifndef __BUF_IO__
marcelobarrosalmeida 1:acdf490d94a7 20 #define __BUF_IO__
marcelobarrosalmeida 1:acdf490d94a7 21
marcelobarrosalmeida 1:acdf490d94a7 22 #ifdef __cplusplus
marcelobarrosalmeida 1:acdf490d94a7 23 extern "C" {
marcelobarrosalmeida 1:acdf490d94a7 24 #endif
marcelobarrosalmeida 1:acdf490d94a7 25
marcelobarrosalmeida 1:acdf490d94a7 26 /** Pointer size */
marcelobarrosalmeida 1:acdf490d94a7 27 #define POINTER_SIZE (sizeof(void *))
marcelobarrosalmeida 1:acdf490d94a7 28
marcelobarrosalmeida 1:acdf490d94a7 29 /** Number of elements in a array */
marcelobarrosalmeida 1:acdf490d94a7 30 #define NUM_OF_ELEMENTS_IN_ARRAY(a) (sizeof(a)/sizeof(a[0]))
marcelobarrosalmeida 1:acdf490d94a7 31
marcelobarrosalmeida 1:acdf490d94a7 32 /**
marcelobarrosalmeida 1:acdf490d94a7 33 @name next/prev macro functions
marcelobarrosalmeida 1:acdf490d94a7 34 Next/previous aligned address, avoiding data aborts in buffer operations.
marcelobarrosalmeida 1:acdf490d94a7 35 @{
marcelobarrosalmeida 1:acdf490d94a7 36 */
marcelobarrosalmeida 1:acdf490d94a7 37 #define __next_aligned_addr32(x) (((x) + 0x03) & 0xFFFFFFFC)
marcelobarrosalmeida 1:acdf490d94a7 38 #define __next_aligned_addr16(x) (((x) + 0x01) & 0xFFFFFFFE)
marcelobarrosalmeida 1:acdf490d94a7 39 #define __prev_aligned_addr32(x) ((x) & 0xFFFFFFFC)
marcelobarrosalmeida 1:acdf490d94a7 40 #define __prev_aligned_addr16(x) ((x) & 0xFFFFFFFE)
marcelobarrosalmeida 1:acdf490d94a7 41 /** @} */
marcelobarrosalmeida 1:acdf490d94a7 42
marcelobarrosalmeida 1:acdf490d94a7 43 /**
marcelobarrosalmeida 1:acdf490d94a7 44 @name swap functions
marcelobarrosalmeida 1:acdf490d94a7 45 Swap operations.
marcelobarrosalmeida 1:acdf490d94a7 46 @{
marcelobarrosalmeida 1:acdf490d94a7 47 */
marcelobarrosalmeida 1:acdf490d94a7 48
marcelobarrosalmeida 1:acdf490d94a7 49 /**
marcelobarrosalmeida 1:acdf490d94a7 50 Swaps a 16 bits unsigned integer.
marcelobarrosalmeida 1:acdf490d94a7 51 @param ucShort 16 bits unsigned integer to be swapped
marcelobarrosalmeida 1:acdf490d94a7 52 @return 16 bits unsigned integer swapped
marcelobarrosalmeida 1:acdf490d94a7 53 @{
marcelobarrosalmeida 1:acdf490d94a7 54 */
marcelobarrosalmeida 1:acdf490d94a7 55 uint16_t buf_io_swap16 (uint16_t usShort);
marcelobarrosalmeida 1:acdf490d94a7 56
marcelobarrosalmeida 1:acdf490d94a7 57 /**
marcelobarrosalmeida 1:acdf490d94a7 58 Swaps a 32 bits unsigned integer.
marcelobarrosalmeida 1:acdf490d94a7 59 @param ulLong 32 bits unsigned integer to be swapped
marcelobarrosalmeida 1:acdf490d94a7 60 @return 32 bits unsigned integer swapped
marcelobarrosalmeida 1:acdf490d94a7 61 @{
marcelobarrosalmeida 1:acdf490d94a7 62 */
marcelobarrosalmeida 1:acdf490d94a7 63 uint32_t buf_io_swap32 (uint32_t ulLong);
marcelobarrosalmeida 1:acdf490d94a7 64
marcelobarrosalmeida 1:acdf490d94a7 65 /**
marcelobarrosalmeida 1:acdf490d94a7 66 Swaps a 16 bits unsigned integer inside a buffer.
marcelobarrosalmeida 1:acdf490d94a7 67 @param pucPtr Pointer where 16 bits unsigned integer is stored.
marcelobarrosalmeida 1:acdf490d94a7 68 */
marcelobarrosalmeida 1:acdf490d94a7 69 void buf_io_swap16p(uint8_t *pucPtr);
marcelobarrosalmeida 1:acdf490d94a7 70
marcelobarrosalmeida 1:acdf490d94a7 71 /**
marcelobarrosalmeida 1:acdf490d94a7 72 Swaps a 32 bits unsigned integer inside a buffer.
marcelobarrosalmeida 1:acdf490d94a7 73 @param pucPtr Pointer where 32 bits unsigned integer is stored.
marcelobarrosalmeida 1:acdf490d94a7 74 */
marcelobarrosalmeida 1:acdf490d94a7 75 void buf_io_swap32p(uint8_t *pucPtr);
marcelobarrosalmeida 1:acdf490d94a7 76
marcelobarrosalmeida 1:acdf490d94a7 77 /**
marcelobarrosalmeida 1:acdf490d94a7 78 Swaps 8 bits unsigned integer in a byte.
marcelobarrosalmeida 1:acdf490d94a7 79 @param ucChar 8 bits unsigned integer to be bit swapped
marcelobarrosalmeida 1:acdf490d94a7 80 @return 8 bits unsigned integer swapped
marcelobarrosalmeida 1:acdf490d94a7 81 */
marcelobarrosalmeida 1:acdf490d94a7 82 uint8_t buf_io_swap8b (uint8_t ucChar);
marcelobarrosalmeida 1:acdf490d94a7 83 /** @} */
marcelobarrosalmeida 1:acdf490d94a7 84
marcelobarrosalmeida 1:acdf490d94a7 85 /**
marcelobarrosalmeida 1:acdf490d94a7 86 @name endianess dependent functions (GET)
marcelobarrosalmeida 1:acdf490d94a7 87 @{
marcelobarrosalmeida 1:acdf490d94a7 88 */
marcelobarrosalmeida 1:acdf490d94a7 89 uint8_t buf_io_get8_fl (uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 90 uint8_t buf_io_get8_fb (uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 91 uint8_t buf_io_get8_fl_apr (uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 92 uint8_t buf_io_get8_fb_apr (uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 93 #define buf_io_get8_fl_ap(x) buf_io_get8_fl_apr(&x)
marcelobarrosalmeida 1:acdf490d94a7 94 #define buf_io_get8_fb_ap(x) buf_io_get8_fb_apr(&x)
marcelobarrosalmeida 1:acdf490d94a7 95
marcelobarrosalmeida 1:acdf490d94a7 96 uint16_t buf_io_get16_fl (uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 97 uint16_t buf_io_get16_fb (uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 98 uint16_t buf_io_get16_fl_apr (uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 99 uint16_t buf_io_get16_fb_apr (uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 100 #define buf_io_get16_fl_ap(x) buf_io_get16_fl_apr(&x)
marcelobarrosalmeida 1:acdf490d94a7 101 #define buf_io_get16_fb_ap(x) buf_io_get16_fb_apr(&x)
marcelobarrosalmeida 1:acdf490d94a7 102
marcelobarrosalmeida 1:acdf490d94a7 103 uint32_t buf_io_get32_fl (uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 104 uint32_t buf_io_get32_fb (uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 105 uint32_t buf_io_get32_fl_apr (uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 106 uint32_t buf_io_get32_fb_apr (uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 107 #define buf_io_get32_fl_ap(x) buf_io_get32_fl_apr(&x)
marcelobarrosalmeida 1:acdf490d94a7 108 #define buf_io_get32_fb_ap(x) buf_io_get32_fb_apr(&x)
marcelobarrosalmeida 1:acdf490d94a7 109
marcelobarrosalmeida 1:acdf490d94a7 110 uint64_t buf_io_get64_fl (uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 111 uint64_t buf_io_get64_fb (uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 112 uint64_t buf_io_get64_fl_apr (uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 113 uint64_t buf_io_get64_fb_apr (uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 114 #define buf_io_get64_fl_ap(x) buf_io_get64_fl_apr(&x)
marcelobarrosalmeida 1:acdf490d94a7 115 #define buf_io_get64_fb_ap(x) buf_io_get64_fb_apr(&x)
marcelobarrosalmeida 1:acdf490d94a7 116
marcelobarrosalmeida 1:acdf490d94a7 117 float buf_io_getf_fl (uint8_t *src_ptr);
marcelobarrosalmeida 1:acdf490d94a7 118 float buf_io_getf_fb (uint8_t *src_ptr);
marcelobarrosalmeida 1:acdf490d94a7 119 float buf_io_getf_fl_apr (uint8_t **src_ptr);
marcelobarrosalmeida 1:acdf490d94a7 120 float buf_io_getf_fb_apr (uint8_t **src_ptr);
marcelobarrosalmeida 1:acdf490d94a7 121 #define buf_io_getf_fl_ap(x) buf_io_getf_fl_apr(&x)
marcelobarrosalmeida 1:acdf490d94a7 122 #define buf_io_getf_fb_ap(x) buf_io_getf_fb_apr(&x)
marcelobarrosalmeida 1:acdf490d94a7 123
marcelobarrosalmeida 1:acdf490d94a7 124 double buf_io_getd_fl (uint8_t *src_ptr);
marcelobarrosalmeida 1:acdf490d94a7 125 double buf_io_getd_fb (uint8_t *src_ptr);
marcelobarrosalmeida 1:acdf490d94a7 126 double buf_io_getd_fl_apr (uint8_t **src_ptr);
marcelobarrosalmeida 1:acdf490d94a7 127 double buf_io_getd_fb_apr (uint8_t **src_ptr);
marcelobarrosalmeida 1:acdf490d94a7 128 #define buf_io_getd_fl_ap(x) buf_io_getd_fl_apr(&x)
marcelobarrosalmeida 1:acdf490d94a7 129 #define buf_io_getd_fb_ap(x) buf_io_getd_fb_apr(&x)
marcelobarrosalmeida 1:acdf490d94a7 130 /** @} */
marcelobarrosalmeida 1:acdf490d94a7 131
marcelobarrosalmeida 1:acdf490d94a7 132 /**
marcelobarrosalmeida 1:acdf490d94a7 133 @name endianess dependent functions (PUT)
marcelobarrosalmeida 1:acdf490d94a7 134 @{
marcelobarrosalmeida 1:acdf490d94a7 135 */
marcelobarrosalmeida 1:acdf490d94a7 136 void buf_io_put8_tl (uint8_t value, uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 137 void buf_io_put8_tb (uint8_t value, uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 138 void buf_io_put8_tl_apr (uint8_t value, uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 139 void buf_io_put8_tb_apr (uint8_t value, uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 140 #define buf_io_put8_tl_ap(v,x) buf_io_put8_tl_apr(v,&x)
marcelobarrosalmeida 1:acdf490d94a7 141 #define buf_io_put8_tb_ap(v,x) buf_io_put8_tb_apr(v,&x)
marcelobarrosalmeida 1:acdf490d94a7 142
marcelobarrosalmeida 1:acdf490d94a7 143 void buf_io_put16_tl (uint16_t value, uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 144 void buf_io_put16_tb (uint16_t value, uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 145 void buf_io_put16_tl_apr (uint16_t value, uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 146 void buf_io_put16_tb_apr (uint16_t value, uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 147 #define buf_io_put16_tl_ap(v,x) buf_io_put16_tl_apr(v,&x)
marcelobarrosalmeida 1:acdf490d94a7 148 #define buf_io_put16_tb_ap(v,x) buf_io_put16_tb_apr(v,&x)
marcelobarrosalmeida 1:acdf490d94a7 149
marcelobarrosalmeida 1:acdf490d94a7 150 void buf_io_put32_tl (uint32_t value, uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 151 void buf_io_put32_tb (uint32_t value, uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 152 void buf_io_put32_tl_apr (uint32_t value, uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 153 void buf_io_put32_tb_apr (uint32_t value, uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 154 #define buf_io_put32_tl_ap(v,x) buf_io_put32_tl_apr(v,&x)
marcelobarrosalmeida 1:acdf490d94a7 155 #define buf_io_put32_tb_ap(v,x) buf_io_put32_tb_apr(v,&x)
marcelobarrosalmeida 1:acdf490d94a7 156
marcelobarrosalmeida 1:acdf490d94a7 157 void buf_io_put64_tl (uint64_t value, uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 158 void buf_io_put64_tb (uint64_t value, uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 159 void buf_io_put64_tl_apr (uint64_t value, uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 160 void buf_io_put64_tb_apr (uint64_t value, uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 161 #define buf_io_put64_tl_ap(v,x) buf_io_put64_tl_apr(v,&x)
marcelobarrosalmeida 1:acdf490d94a7 162 #define buf_io_put64_tb_ap(v,x) buf_io_put64_tb_apr(v,&x)
marcelobarrosalmeida 1:acdf490d94a7 163
marcelobarrosalmeida 1:acdf490d94a7 164 void buf_io_putf_tl (float value, uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 165 void buf_io_putf_tb (float value, uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 166 void buf_io_putf_tl_apr (float value, uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 167 void buf_io_putf_tb_apr (float value, uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 168 #define buf_io_putf_tl_ap(v, x) buf_io_putf_tl_apr(v, &x)
marcelobarrosalmeida 1:acdf490d94a7 169 #define buf_io_putf_tb_ap(v, x) buf_io_putf_tb_apr(v, &x)
marcelobarrosalmeida 1:acdf490d94a7 170
marcelobarrosalmeida 1:acdf490d94a7 171 void buf_io_putd_tl (double value, uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 172 void buf_io_putd_tb (double value, uint8_t *buf);
marcelobarrosalmeida 1:acdf490d94a7 173 void buf_io_putd_tl_apr (double value, uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 174 void buf_io_putd_tb_apr (double value, uint8_t **buf);
marcelobarrosalmeida 1:acdf490d94a7 175 #define buf_io_putd_tl_ap(v, x) buf_io_putd_tl_apr(v, &x)
marcelobarrosalmeida 1:acdf490d94a7 176 #define buf_io_putd_tb_ap(v, x) buf_io_putd_tb_apr(v, &x)
marcelobarrosalmeida 1:acdf490d94a7 177 /** @} */
marcelobarrosalmeida 1:acdf490d94a7 178
marcelobarrosalmeida 1:acdf490d94a7 179 #ifdef __cplusplus
marcelobarrosalmeida 1:acdf490d94a7 180 }
marcelobarrosalmeida 1:acdf490d94a7 181 #endif
marcelobarrosalmeida 1:acdf490d94a7 182
marcelobarrosalmeida 1:acdf490d94a7 183 #endif /* __BUF_IO__ */