Hi,
I am working with DM365 processor and we have interfaced one audio codec in i2s mode. I am operating DM365 as Master.
I am working with 2.6.37 kernel.
I have received the audio driver from the vendor and i have developed the required machine driver.
when i test the code with aplay.
i am seeing that the i2s starts and immediately calls shutdown.
the AUDIO FORMAT i configured is
#define AUDIO_FORMAT (SND_SOC_DAIFMT_I2S | \
SND_SOC_DAIFMT_CBS_CFS)
Could anyone help me in finding what i am doing wrong.
Please find the log below.
root@dm365:~# aplay -v test.wav
davinci_i2s_startup
Playing WAVE 'test.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono
davinci_i2s_set_dai_fmt
davinci_i2s_hw_params
davinci_i2s_prepare
davinci_mcbsp_stop
toggle_clock
davinci_i2s_trigger
davinci_mcbsp_start
toggle_clock
Plug PCM: Route conversion PCM (sformat=S16_LE)
Transformation table:
0 <- 0
1 <- 0
Its setup is:
stream : PLAYBACK
access : RW_INTERLEAVED
format : U8
subformat : STD
channels : 1
rate : 8000
exact rate : 8000 (8000/1)
msbits : 8
buffer_size : 16000
period_size : 1000
period_time : 125000
tstamp_mode : NONE
period_step : 1
avail_min : 1000
period_event : 0
start_threshold : 16000
stop_threshold : 16000
silence_threshold: 0
silence_size : 0
boundary : 2097152000
Slave: Hardware PCM card 0 'DaVinci DM365 Garuda' device 0 subdevice 0
Its setup is:
stream : PLAYBACK
access : MMAP_INTERLEAVED
format : S16_LE
subformat : STD
channels : 2
rate : 8000
exact rate : 8000 (8000/1)
msbits : 16
buffer_size : 16000
period_size : 1000
period_time : 125000
tstamp_mode : NONE
period_step : 1
avail_min : 1000
period_event : 0
start_threshold : 16000
stop_threshold : 16000
silence_threshold: 0
silence_size : 0
boundary : 2097152000
appl_ptr : 0
hw_ptr : 0
davinci_i2s_trigger
davinci_mcbsp_stop
toggle_clock
davinci_i2s_shutdown
davinci_mcbsp_stop
toggle_clock
Thank you, Sreedhar.
