Lines Matching +full:multi +full:- +full:functional
1 Renesas R-Car sound
7 Renesas R-Car and RZ/G sound is constructed from below modules
11 - SRC : Sampling Rate Converter
12 - CMD
13 - CTU : Channel Transfer Unit
14 - MIX : Mixer
15 - DVC : Digital Volume and Mute Function
22 * Multi channel
25 Multi channel is supported by Multi-SSI, or TDM-SSI.
27 Multi-SSI : 6ch case, you can use stereo x 3 SSI
28 TDM-SSI : 6ch case, you can use TDM
34 See datasheet to check SRC/CTU/MIX/DVC connect-limitation.
36 ${LINUX}/arch/arm/boot/dts/r8a7790-lager.dts can be good example.
39 Playback: [MEM] -> [SRC2] -> [DVC0] -> [SSIU0/SSI0] -> [codec]
40 Capture: [MEM] <- [DVC1] <- [SRC3] <- [SSIU1/SSI1] <- [codec]
63 ------> [SRC] ------>
74 ------------------
76 ------------------
78 You need to use "simple-scu-audio-card" or "audio-graph-scu-card" for it.
81 ------------------
83 ------------------
95 ------> [CTU] -------->
101 Renesas R-Car datasheet
102 - Sampling Rate Converter Unit (SCU)
103 - SCU Operation
104 - CMD Block
105 - Functional Blocks in CMD
107 Renesas R-Car datasheet
108 - Sampling Rate Converter Unit (SCU)
109 - Register Description
110 - CTUn Scale Value exx Register (CTUn_SVxxR)
113 - comment of header
115 You need to use "simple-scu-audio-card" or "audio-graph-scu-card" for it.
119 Input -> Output
120 1ch -> 0ch
121 0ch -> 1ch
143 aplay -D plughw:0,0 xxxx.wav &
144 aplay -D plughw:0,1 yyyy.wav
146 You need to use "simple-scu-audio-card" or "audio-graph-scu-card" for it.
148 [MEM] -> [SRC1] -> [CTU02] -+-> [MIX0] -> [DVC0] -> [SSI0]
150 [MEM] -> [SRC2] -> [CTU03] -+
186 In DMA mode, you can select not to use SSIU by using "no-busif" via SSI.
189 This driver is assuming that audio-graph card will be used.
194 aplay -D plughw:0,0 xxxx.wav &
195 aplay -D plughw:0,1 xxxx.wav &
196 aplay -D plughw:0,2 xxxx.wav &
197 aplay -D plughw:0,3 xxxx.wav
200 [MEM] -> [SSIU 30] -+-> [SSIU 3] --> [Codec]
202 [MEM] -> [SSIU 31] -+
204 [MEM] -> [SSIU 32] -+
206 [MEM] -> [SSIU 33] -+
217 Note: The system will drop non-SSI modules in PIO mode
221 pio-transfer
230 no-busif;
239 shared-pin;
242 ** Multi-SSI
244 You can use Multi-SSI.
247 see "Example: simple sound card for Multi channel"
249 ** TDM-SSI
253 Driver can automatically switches TDM <-> stereo mode in this case.