R_BSP_Spdif.cpp

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00023 
00024 #include "R_BSP_Spdif.h"
00025 #if (R_BSP_SPDIF_ENABLE == 1)
00026 #include "r_bsp_cmn.h"
00027 #include "spdif_if.h"
00028 #include "spdif_api.h"
00029 
00030 R_BSP_Spdif::R_BSP_Spdif(PinName audio_clk, PinName tx, PinName rx) : spdif_ch(-1) {
00031     int32_t wk_channel;
00032 
00033     wk_channel = spdif_init(audio_clk, tx, rx);
00034     if (wk_channel != NC) {
00035         spdif_ch = wk_channel;
00036     }
00037 }
00038 
00039 R_BSP_Spdif::~R_BSP_Spdif() {
00040     // do nothing
00041 }
00042 
00043 void R_BSP_Spdif::init(const spdif_channel_cfg_t* const p_ch_cfg, int32_t max_write_num, int32_t max_read_num) {
00044     if (spdif_ch >= 0) {
00045         init_channel(R_SPDIF_MakeCbTbl_mbed(), spdif_ch, (void *)p_ch_cfg, max_write_num, max_read_num);
00046     }
00047 }
00048 
00049 bool R_BSP_Spdif::ConfigChannel(const spdif_channel_cfg_t* const p_ch_cfg) {
00050     return ioctl(SPDIF_CONFIG_CHANNEL, (void *)p_ch_cfg);
00051 }
00052 
00053 bool R_BSP_Spdif::SetChannelStatus(uint32_t status_Lch, uint32_t status_Rch) {
00054     spdif_channel_status_t channel_status;
00055 
00056     channel_status.Lch = status_Lch;
00057     channel_status.Rch = status_Rch;
00058 
00059     return ioctl(SPDIF_SET_CHANNEL_STATUS, (void *)&channel_status);
00060 }
00061 
00062 bool R_BSP_Spdif::GetChannelStatus(uint32_t * p_status_Lch, uint32_t * p_status_Rch) {
00063     spdif_channel_status_t channel_status;
00064 
00065     if (ioctl(SPDIF_GET_CHANNEL_STATUS, (void *)&channel_status) != false) {
00066         if (p_status_Lch != NULL) {
00067             *p_status_Lch = channel_status.Lch;
00068         }
00069         if (p_status_Rch != NULL) {
00070             *p_status_Rch = channel_status.Rch;
00071         }
00072     }
00073 
00074     return true;
00075 }
00076 
00077 bool R_BSP_Spdif::SetTransAudioBit(int direction, char length) {
00078     spdif_chcfg_audio_bit_t audio_bit;
00079     int control_type;
00080 
00081     if (direction == 0) {
00082         control_type = SPDIF_SET_TRANS_AUDIO_BIT;
00083     } else {
00084         control_type = SPDIF_SET_RECV_AUDIO_BIT;
00085     }
00086 
00087     switch (length) {
00088         case 16:
00089             audio_bit = SPDIF_CFG_AUDIO_BIT_16;
00090             break;
00091         case 20:
00092             audio_bit = SPDIF_CFG_AUDIO_BIT_20;
00093             break;
00094         case 24:
00095             audio_bit = SPDIF_CFG_AUDIO_BIT_24;
00096             break;
00097         default:
00098             return false;
00099     }
00100 
00101     return ioctl(control_type, (void *)&audio_bit);
00102 }
00103 
00104 #endif /* R_BSP_SPDIF_ENABLE */