Initial Bluedroid stack commit

1 files changed, 199 insertions, 0 deletions

diff --git a/stack/include/a2d_sbc.h b/stack/include/a2d_sbc.h
new file mode 100644
index 0000000..a80639b
--- /dev/null
+++ b/stack/include/a2d_sbc.h
@@ -0,0 +1,199 @@
+/*****************************************************************************
+**
+**  Name:       a2d_sbc.h
+**
+**  Description:Interface to low complexity subband codec (SBC)
+**
+**  Copyright (c) 2000-2004, WIDCOMM Inc., All Rights Reserved.
+**  WIDCOMM Bluetooth Core. Proprietary and confidential.
+**
+*****************************************************************************/
+#ifndef A2D_SBC_H
+#define A2D_SBC_H
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+/* the length of the SBC Media Payload header. */
+#define A2D_SBC_MPL_HDR_LEN         1
+
+/* the LOSC of SBC media codec capabilitiy */
+#define A2D_SBC_INFO_LEN            6
+
+/* for Codec Specific Information Element */
+#define A2D_SBC_IE_SAMP_FREQ_MSK    0xF0    /* b7-b4 sampling frequency */
+#define A2D_SBC_IE_SAMP_FREQ_16     0x80    /* b7:16  kHz */
+#define A2D_SBC_IE_SAMP_FREQ_32     0x40    /* b6:32  kHz */
+#define A2D_SBC_IE_SAMP_FREQ_44     0x20    /* b5:44.1kHz */
+#define A2D_SBC_IE_SAMP_FREQ_48     0x10    /* b4:48  kHz */
+
+#define A2D_SBC_IE_CH_MD_MSK        0x0F    /* b3-b0 channel mode */
+#define A2D_SBC_IE_CH_MD_MONO       0x08    /* b3: mono */
+#define A2D_SBC_IE_CH_MD_DUAL       0x04    /* b2: dual */
+#define A2D_SBC_IE_CH_MD_STEREO     0x02    /* b1: stereo */
+#define A2D_SBC_IE_CH_MD_JOINT      0x01    /* b0: joint stereo */
+
+#define A2D_SBC_IE_BLOCKS_MSK       0xF0    /* b7-b4 number of blocks */
+#define A2D_SBC_IE_BLOCKS_4         0x80    /* 4 blocks */
+#define A2D_SBC_IE_BLOCKS_8         0x40    /* 8 blocks */
+#define A2D_SBC_IE_BLOCKS_12        0x20    /* 12blocks */
+#define A2D_SBC_IE_BLOCKS_16        0x10    /* 16blocks */
+
+#define A2D_SBC_IE_SUBBAND_MSK      0x0C    /* b3-b2 number of subbands */
+#define A2D_SBC_IE_SUBBAND_4        0x08    /* b3: 4 */
+#define A2D_SBC_IE_SUBBAND_8        0x04    /* b2: 8 */
+
+#define A2D_SBC_IE_ALLOC_MD_MSK     0x03    /* b1-b0 allocation mode */
+#define A2D_SBC_IE_ALLOC_MD_S       0x02    /* b1: SNR */
+#define A2D_SBC_IE_ALLOC_MD_L       0x01    /* b0: loundess */
+
+#define A2D_SBC_IE_MIN_BITPOOL      2
+#define A2D_SBC_IE_MAX_BITPOOL      250
+
+/* for media payload header */
+#define A2D_SBC_HDR_F_MSK           0x80
+#define A2D_SBC_HDR_S_MSK           0x40
+#define A2D_SBC_HDR_L_MSK           0x20
+#define A2D_SBC_HDR_NUM_MSK         0x0F
+
+/*****************************************************************************
+**  Type Definitions
+*****************************************************************************/
+
+/* data type for the SBC Codec Information Element*/
+typedef struct
+{
+    UINT8   samp_freq;      /* Sampling frequency */
+    UINT8   ch_mode;        /* Channel mode */
+    UINT8   block_len;      /* Block length */
+    UINT8   num_subbands;   /* Number of subbands */
+    UINT8   alloc_mthd;     /* Allocation method */
+    UINT8   max_bitpool;    /* Maximum bitpool */
+    UINT8   min_bitpool;    /* Minimum bitpool */
+} tA2D_SBC_CIE;
+
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/******************************************************************************
+**
+** Function         A2D_SbcChkFrInit
+**
+** Description      check if need to init the descramble control block.
+**
+** Returns          nothing.
+******************************************************************************/
+A2D_API extern void A2D_SbcChkFrInit(UINT8 *p_pkt);
+
+/******************************************************************************
+**
+** Function         A2D_SbcDescramble
+**
+** Description      descramble the packet.
+**
+** Returns          nothing.
+******************************************************************************/
+A2D_API extern void A2D_SbcDescramble(UINT8 *p_pkt, UINT16 len);
+
+/******************************************************************************
+**
+** Function         A2D_BldSbcInfo
+**
+** Description      This function is called by an application to build
+**                  the SBC Media Codec Capabilities byte sequence
+**                  beginning from the LOSC octet.
+**                  Input Parameters:
+**                      media_type:  Indicates Audio, or Multimedia.
+**
+**                      p_ie:  The SBC Codec Information Element information.
+**
+**                  Output Parameters:
+**                      p_result:  the resulting codec info byte sequence.
+**
+** Returns          A2D_SUCCESS if function execution succeeded.
+**                  Error status code, otherwise.
+******************************************************************************/
+A2D_API extern tA2D_STATUS A2D_BldSbcInfo(UINT8 media_type, tA2D_SBC_CIE *p_ie,
+                                          UINT8 *p_result);
+
+/******************************************************************************
+**
+** Function         A2D_ParsSbcInfo
+**
+** Description      This function is called by an application to parse
+**                  the SBC Media Codec Capabilities byte sequence
+**                  beginning from the LOSC octet.
+**                  Input Parameters:
+**                      p_info:  the byte sequence to parse.
+**
+**                      for_caps:  TRUE, if the byte sequence is for get capabilities response.
+**
+**                  Output Parameters:
+**                      p_ie:  The SBC Codec Information Element information.
+**
+** Returns          A2D_SUCCESS if function execution succeeded.
+**                  Error status code, otherwise.
+******************************************************************************/
+A2D_API extern tA2D_STATUS A2D_ParsSbcInfo(tA2D_SBC_CIE *p_ie, UINT8 *p_info,
+                                           BOOLEAN for_caps);
+
+/******************************************************************************
+**
+** Function         A2D_BldSbcMplHdr
+**
+** Description      This function is called by an application to parse
+**                  the SBC Media Payload header.
+**                  Input Parameters:
+**                      frag:  1, if fragmented. 0, otherwise.
+**
+**                      start:  1, if the starting packet of a fragmented frame.
+**
+**                      last:  1, if the last packet of a fragmented frame.
+**
+**                      num:  If frag is 1, this is the number of remaining fragments
+**                            (including this fragment) of this frame.
+**                            If frag is 0, this is the number of frames in this packet.
+**
+**                  Output Parameters:
+**                      p_dst:  the resulting media payload header byte sequence.
+**
+** Returns          void.
+******************************************************************************/
+A2D_API extern void A2D_BldSbcMplHdr(UINT8 *p_dst, BOOLEAN frag, BOOLEAN start,
+                                     BOOLEAN last, UINT8 num);
+
+/******************************************************************************
+**
+** Function         A2D_ParsSbcMplHdr
+**
+** Description      This function is called by an application to parse
+**                  the SBC Media Payload header.
+**                  Input Parameters:
+**                      p_src:  the byte sequence to parse..
+**
+**                  Output Parameters:
+**                      frag:  1, if fragmented. 0, otherwise.
+**
+**                      start:  1, if the starting packet of a fragmented frame.
+**
+**                      last:  1, if the last packet of a fragmented frame.
+**
+**                      num:  If frag is 1, this is the number of remaining fragments
+**                            (including this fragment) of this frame.
+**                            If frag is 0, this is the number of frames in this packet.
+**
+** Returns          void.
+******************************************************************************/
+A2D_API extern void A2D_ParsSbcMplHdr(UINT8 *p_src, BOOLEAN *p_frag,
+                                      BOOLEAN *p_start, BOOLEAN *p_last,
+                                      UINT8 *p_num);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* A2D_SBC_H */