drivers/staging/csr/csr_serialize_primitive_types.c

   1 /*****************************************************************************
   2
   3             (c) Cambridge Silicon Radio Limited 2010
   4             All rights reserved and confidential information of CSR
   5
   6             Refer to LICENSE.txt included with this source for details
   7             on the license terms.
   8
   9 *****************************************************************************/
  10
  11 #include <linux/module.h>
  12 #include <linux/slab.h>
  13 #include "csr_prim_defs.h"
  14 #include "csr_msgconv.h"
  15 #include "csr_macro.h"
  16
  17 void CsrUint8Des(u8 *value, u8 *buffer, size_t *offset)
  18 {
  19     *value = buffer[*offset];
  20     *offset += sizeof(*value);
  21 }
  22 EXPORT_SYMBOL_GPL(CsrUint8Des);
  23
  24 void CsrUint16Des(u16 *value, u8 *buffer, size_t *offset)
  25 {
  26     *value = (buffer[*offset + 0] << 0) |
  27              (buffer[*offset + 1] << 8);
  28     *offset += sizeof(*value);
  29 }
  30 EXPORT_SYMBOL_GPL(CsrUint16Des);
  31
  32 void CsrUint32Des(u32 *value, u8 *buffer, size_t *offset)
  33 {
  34     *value = (buffer[*offset + 0] << 0) |
  35              (buffer[*offset + 1] << 8) |
  36              (buffer[*offset + 2] << 16) |
  37              (buffer[*offset + 3] << 24);
  38     *offset += sizeof(*value);
  39 }
  40 EXPORT_SYMBOL_GPL(CsrUint32Des);
  41
  42 void CsrMemCpyDes(void *value, u8 *buffer, size_t *offset, size_t length)
  43 {
  44     memcpy(value, &buffer[*offset], length);
  45     *offset += length;
  46 }
  47 EXPORT_SYMBOL_GPL(CsrMemCpyDes);
  48
  49 void CsrCharStringDes(char **value, u8 *buffer, size_t *offset)
  50 {
  51     *value = kstrdup((char *) &buffer[*offset], GFP_KERNEL);
  52     *offset += strlen(*value) + 1;
  53 }
  54 EXPORT_SYMBOL_GPL(CsrCharStringDes);
  55
  56 void CsrUint8Ser(u8 *buffer, size_t *offset, u8 value)
  57 {
  58     buffer[*offset] = value;
  59     *offset += sizeof(value);
  60 }
  61 EXPORT_SYMBOL_GPL(CsrUint8Ser);
  62
  63 void CsrUint16Ser(u8 *buffer, size_t *offset, u16 value)
  64 {
  65     buffer[*offset + 0] = (u8) ((value >> 0) & 0xFF);
  66     buffer[*offset + 1] = (u8) ((value >> 8) & 0xFF);
  67     *offset += sizeof(value);
  68 }
  69 EXPORT_SYMBOL_GPL(CsrUint16Ser);
  70
  71 void CsrUint32Ser(u8 *buffer, size_t *offset, u32 value)
  72 {
  73     buffer[*offset + 0] = (u8) ((value >> 0) & 0xFF);
  74     buffer[*offset + 1] = (u8) ((value >> 8) & 0xFF);
  75     buffer[*offset + 2] = (u8) ((value >> 16) & 0xFF);
  76     buffer[*offset + 3] = (u8) ((value >> 24) & 0xFF);
  77     *offset += sizeof(value);
  78 }
  79 EXPORT_SYMBOL_GPL(CsrUint32Ser);
  80
  81 void CsrMemCpySer(u8 *buffer, size_t *offset, const void *value, size_t length)
  82 {
  83     memcpy(&buffer[*offset], value, length);
  84     *offset += length;
  85 }
  86 EXPORT_SYMBOL_GPL(CsrMemCpySer);
  87
  88 void CsrCharStringSer(u8 *buffer, size_t *offset, const char *value)
  89 {
  90     if (value)
  91     {
  92         strcpy(((char *) &buffer[*offset]), value);
  93         *offset += strlen(value) + 1;
  94     }
  95     else
  96     {
  97         CsrUint8Ser(buffer, offset, 0);
  98     }
  99 }
 100 EXPORT_SYMBOL_GPL(CsrCharStringSer);