R_BSP_Ssif.cpp

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00023 
00024 #include "r_bsp_cmn.h"
00025 #include "R_BSP_Ssif.h"
00026 #include "ssif_if.h"
00027 #include "ssif_api.h"
00028 
00029 R_BSP_Ssif::R_BSP_Ssif(PinName sck, PinName ws, PinName tx, PinName rx, uint8_t int_level, int32_t max_write_num, int32_t max_read_num) {
00030     int32_t wk_channel;
00031 
00032     wk_channel = ssif_init(sck, ws, tx, rx);
00033     if (wk_channel != NC) {
00034         ssif_ch      = wk_channel;
00035 
00036         ssif_cfg.enabled                = true;
00037         ssif_cfg.int_level              = 0x78;
00038         ssif_cfg.slave_mode             = true;
00039         ssif_cfg.sample_freq            = 44100u;
00040         ssif_cfg.clk_select             = SSIF_CFG_CKS_AUDIO_X1;
00041         ssif_cfg.multi_ch               = SSIF_CFG_MULTI_CH_1;
00042         ssif_cfg.data_word              = SSIF_CFG_DATA_WORD_16;
00043         ssif_cfg.system_word            = SSIF_CFG_SYSTEM_WORD_32;
00044         ssif_cfg.bclk_pol               = SSIF_CFG_FALLING;
00045         ssif_cfg.ws_pol                 = SSIF_CFG_WS_LOW;
00046         ssif_cfg.padding_pol            = SSIF_CFG_PADDING_LOW;
00047         ssif_cfg.serial_alignment       = SSIF_CFG_DATA_FIRST;
00048         ssif_cfg.parallel_alignment     = SSIF_CFG_LEFT;
00049         ssif_cfg.ws_delay               = SSIF_CFG_DELAY;
00050         ssif_cfg.noise_cancel           = SSIF_CFG_ENABLE_NOISE_CANCEL;
00051         ssif_cfg.tdm_mode               = SSIF_CFG_DISABLE_TDM;
00052         ssif_cfg.romdec_direct.mode     = SSIF_CFG_DISABLE_ROMDEC_DIRECT;
00053         ssif_cfg.romdec_direct.p_cbfunc = NULL;
00054 
00055         init_channel(R_SSIF_MakeCbTbl_mbed(), ssif_ch, &ssif_cfg, max_write_num, max_read_num);
00056     }
00057 }
00058 
00059 R_BSP_Ssif::~R_BSP_Ssif() {
00060     // do nothing
00061 }
00062 
00063 bool R_BSP_Ssif::ConfigChannel(const ssif_channel_cfg_t* const p_ch_cfg) {
00064     return ioctl(SSIF_CONFIG_CHANNEL, (void *)p_ch_cfg);
00065 }
00066 
00067 bool R_BSP_Ssif::GetStatus(uint32_t* const p_status) {
00068     return ioctl(SSIF_CONFIG_CHANNEL, (void *)p_status);
00069 }