diff --git a/asoc/codecs/ep92/ep92.c b/asoc/codecs/ep92/ep92.c index 07a3281893..1c4625898b 100644 --- a/asoc/codecs/ep92/ep92.c +++ b/asoc/codecs/ep92/ep92.c @@ -44,6 +44,61 @@ static const unsigned int ep92_dsd_freq_table[4] = { 64, 128, 256, 0 }; +/* EP92 register default values */ +static struct reg_default ep92_reg_defaults[] = { + {EP92_BI_VENDOR_ID_0, 0x17}, + {EP92_BI_VENDOR_ID_1, 0x7A}, + {EP92_BI_DEVICE_ID_0, 0x94}, + {EP92_BI_DEVICE_ID_1, 0xA3}, + {EP92_BI_VERSION_NUM, 0x10}, + {EP92_BI_VERSION_YEAR, 0x09}, + {EP92_BI_VERSION_MONTH, 0x07}, + {EP92_BI_VERSION_DATE, 0x06}, + {EP92_BI_GENERAL_INFO_0, 0x00}, + {EP92_BI_GENERAL_INFO_1, 0x00}, + {EP92_BI_GENERAL_INFO_2, 0x00}, + {EP92_BI_GENERAL_INFO_3, 0x00}, + {EP92_BI_GENERAL_INFO_4, 0x00}, + {EP92_BI_GENERAL_INFO_5, 0x00}, + {EP92_BI_GENERAL_INFO_6, 0x00}, + {EP92_ISP_MODE_ENTER_ISP, 0x00}, + {EP92_GENERAL_CONTROL_0, 0x20}, + {EP92_GENERAL_CONTROL_1, 0x00}, + {EP92_GENERAL_CONTROL_2, 0x00}, + {EP92_GENERAL_CONTROL_3, 0x10}, + {EP92_GENERAL_CONTROL_4, 0x00}, + {EP92_CEC_EVENT_CODE, 0x00}, + {EP92_CEC_EVENT_PARAM_1, 0x00}, + {EP92_CEC_EVENT_PARAM_2, 0x00}, + {EP92_CEC_EVENT_PARAM_3, 0x00}, + {EP92_CEC_EVENT_PARAM_4, 0x00}, + {EP92_AUDIO_INFO_SYSTEM_STATUS_0, 0x00}, + {EP92_AUDIO_INFO_SYSTEM_STATUS_1, 0x00}, + {EP92_AUDIO_INFO_AUDIO_STATUS, 0x00}, + {EP92_AUDIO_INFO_CHANNEL_STATUS_0, 0x00}, + {EP92_AUDIO_INFO_CHANNEL_STATUS_1, 0x00}, + {EP92_AUDIO_INFO_CHANNEL_STATUS_2, 0x00}, + {EP92_AUDIO_INFO_CHANNEL_STATUS_3, 0x00}, + {EP92_AUDIO_INFO_CHANNEL_STATUS_4, 0x00}, + {EP92_AUDIO_INFO_ADO_INFO_FRAME_0, 0x00}, + {EP92_AUDIO_INFO_ADO_INFO_FRAME_1, 0x00}, + {EP92_AUDIO_INFO_ADO_INFO_FRAME_2, 0x00}, + {EP92_AUDIO_INFO_ADO_INFO_FRAME_3, 0x00}, + {EP92_AUDIO_INFO_ADO_INFO_FRAME_4, 0x00}, + {EP92_AUDIO_INFO_ADO_INFO_FRAME_5, 0x00}, + {EP92_OTHER_PACKETS_HDMI_VS_0, 0x00}, + {EP92_OTHER_PACKETS_HDMI_VS_1, 0x00}, + {EP92_OTHER_PACKETS_ACP_PACKET, 0x00}, + {EP92_OTHER_PACKETS_AVI_INFO_FRAME_0, 0x00}, + {EP92_OTHER_PACKETS_AVI_INFO_FRAME_1, 0x00}, + {EP92_OTHER_PACKETS_AVI_INFO_FRAME_2, 0x00}, + {EP92_OTHER_PACKETS_AVI_INFO_FRAME_3, 0x00}, + {EP92_OTHER_PACKETS_AVI_INFO_FRAME_4, 0x00}, + {EP92_OTHER_PACKETS_GC_PACKET_0, 0x00}, + {EP92_OTHER_PACKETS_GC_PACKET_1, 0x00}, + {EP92_OTHER_PACKETS_GC_PACKET_2, 0x00}, +}; + static bool ep92_volatile_register(struct device *dev, unsigned int reg) { /* do not cache register state in regmap */ @@ -115,6 +170,77 @@ struct ep92_pdata { #endif /* CONFIG_DEBUG_FS */ }; +struct ep92_mclk_cfg_info { + uint32_t in_sample_rate; + uint32_t out_mclk_freq; + uint8_t mul_val; +}; + +#define EP92_MCLK_MUL_512 0x3 +#define EP92_MCLK_MUL_384 0x2 +#define EP92_MCLK_MUL_256 0x1 +#define EP92_MCLK_MUL_128 0x0 +#define EP92_MCLK_MUL_MASK 0x3 + +/** + * ep92_set_ext_mclk - Configure the mclk based on sample freq + * + * @codec: handle pointer to ep92 codec + * @mclk_freq: mclk frequency to be set + * + * Returns 0 for sucess or appropriate negative error code + */ +int ep92_set_ext_mclk(struct snd_soc_codec *codec, uint32_t mclk_freq) +{ + unsigned int samp_freq = 0; + struct ep92_pdata *ep92 = NULL; + uint8_t value = 0; + int ret = 0; + + if (!codec) + return -EINVAL; + + ep92 = snd_soc_codec_get_drvdata(codec); + + samp_freq = ep92_samp_freq_table[(ep92->ai.audio_status) & + EP92_AI_RATE_MASK]; + + if (!mclk_freq || (mclk_freq % samp_freq)) { + pr_err("%s incompatbile mclk:%u and sample freq:%u\n", + __func__, mclk_freq, samp_freq); + return -EINVAL; + } + + switch (mclk_freq / samp_freq) { + case 512: + value = EP92_MCLK_MUL_512; + break; + case 384: + value = EP92_MCLK_MUL_384; + break; + case 256: + value = EP92_MCLK_MUL_256; + break; + case 128: + value = EP92_MCLK_MUL_128; + break; + default: + dev_err(codec->dev, "unsupported mclk:%u for sample freq:%u\n", + mclk_freq, samp_freq); + return -EINVAL; + } + + pr_debug("%s mclk:%u, in sample freq:%u, write reg:0x%02x val:0x%02x\n", + __func__, mclk_freq, samp_freq, + EP92_GENERAL_CONTROL_2, EP92_MCLK_MUL_MASK & value); + + ret = snd_soc_update_bits(codec, EP92_GENERAL_CONTROL_2, + EP92_MCLK_MUL_MASK, value); + + return (((ret == 0) || (ret == 1)) ? 0 : ret); +} +EXPORT_SYMBOL(ep92_set_ext_mclk); + #if IS_ENABLED(CONFIG_DEBUG_FS) static int debugfs_codec_open_op(struct inode *inode, struct file *file) { diff --git a/asoc/codecs/ep92/ep92.h b/asoc/codecs/ep92/ep92.h index 22384fbb67..04443d05a5 100644 --- a/asoc/codecs/ep92/ep92.h +++ b/asoc/codecs/ep92/ep92.h @@ -69,63 +69,6 @@ #define EP92_MAX_REGISTER_ADDR EP92_OTHER_PACKETS_GC_PACKET_2 - -/* EP92 register default values */ -static struct reg_default ep92_reg_defaults[] = { - {EP92_BI_VENDOR_ID_0, 0x17}, - {EP92_BI_VENDOR_ID_1, 0x7A}, - {EP92_BI_DEVICE_ID_0, 0x94}, - {EP92_BI_DEVICE_ID_1, 0xA3}, - {EP92_BI_VERSION_NUM, 0x10}, - {EP92_BI_VERSION_YEAR, 0x09}, - {EP92_BI_VERSION_MONTH, 0x07}, - {EP92_BI_VERSION_DATE, 0x06}, - {EP92_BI_GENERAL_INFO_0, 0x00}, - {EP92_BI_GENERAL_INFO_1, 0x00}, - {EP92_BI_GENERAL_INFO_2, 0x00}, - {EP92_BI_GENERAL_INFO_3, 0x00}, - {EP92_BI_GENERAL_INFO_4, 0x00}, - {EP92_BI_GENERAL_INFO_5, 0x00}, - {EP92_BI_GENERAL_INFO_6, 0x00}, - {EP92_ISP_MODE_ENTER_ISP, 0x00}, - {EP92_GENERAL_CONTROL_0, 0x20}, - {EP92_GENERAL_CONTROL_1, 0x00}, - {EP92_GENERAL_CONTROL_2, 0x00}, - {EP92_GENERAL_CONTROL_3, 0x10}, - {EP92_GENERAL_CONTROL_4, 0x00}, - {EP92_CEC_EVENT_CODE, 0x00}, - {EP92_CEC_EVENT_PARAM_1, 0x00}, - {EP92_CEC_EVENT_PARAM_2, 0x00}, - {EP92_CEC_EVENT_PARAM_3, 0x00}, - {EP92_CEC_EVENT_PARAM_4, 0x00}, - {EP92_AUDIO_INFO_SYSTEM_STATUS_0, 0x00}, - {EP92_AUDIO_INFO_SYSTEM_STATUS_1, 0x00}, - {EP92_AUDIO_INFO_AUDIO_STATUS, 0x00}, - {EP92_AUDIO_INFO_CHANNEL_STATUS_0, 0x00}, - {EP92_AUDIO_INFO_CHANNEL_STATUS_1, 0x00}, - {EP92_AUDIO_INFO_CHANNEL_STATUS_2, 0x00}, - {EP92_AUDIO_INFO_CHANNEL_STATUS_3, 0x00}, - {EP92_AUDIO_INFO_CHANNEL_STATUS_4, 0x00}, - {EP92_AUDIO_INFO_ADO_INFO_FRAME_0, 0x00}, - {EP92_AUDIO_INFO_ADO_INFO_FRAME_1, 0x00}, - {EP92_AUDIO_INFO_ADO_INFO_FRAME_2, 0x00}, - {EP92_AUDIO_INFO_ADO_INFO_FRAME_3, 0x00}, - {EP92_AUDIO_INFO_ADO_INFO_FRAME_4, 0x00}, - {EP92_AUDIO_INFO_ADO_INFO_FRAME_5, 0x00}, - {EP92_OTHER_PACKETS_HDMI_VS_0, 0x00}, - {EP92_OTHER_PACKETS_HDMI_VS_1, 0x00}, - {EP92_OTHER_PACKETS_ACP_PACKET, 0x00}, - {EP92_OTHER_PACKETS_AVI_INFO_FRAME_0, 0x00}, - {EP92_OTHER_PACKETS_AVI_INFO_FRAME_1, 0x00}, - {EP92_OTHER_PACKETS_AVI_INFO_FRAME_2, 0x00}, - {EP92_OTHER_PACKETS_AVI_INFO_FRAME_3, 0x00}, - {EP92_OTHER_PACKETS_AVI_INFO_FRAME_4, 0x00}, - {EP92_OTHER_PACKETS_GC_PACKET_0, 0x00}, - {EP92_OTHER_PACKETS_GC_PACKET_1, 0x00}, - {EP92_OTHER_PACKETS_GC_PACKET_2, 0x00}, -}; - - /* shift/masks for register bits * GI = General Info * GC = General Control @@ -211,4 +154,6 @@ enum { EP92_KCTL_MAX }; +int ep92_set_ext_mclk(struct snd_soc_codec *codec, uint32_t mclk_freq); + #endif /* __EP92_H__ */