7e3a457308
Added bidirectional I2S support for Intel S1000
- Added implementation for I2S receive mode
- Extended driver instances to support 3 I2S ports
- Added DMA channel mappings for upto 4 I2S ports
- Utilized k_msgq to track buffers through the driver
- Allocate buffers for audio reception in the driver
- Free buffers after audio transmission in the driver
- Perform buffer reload for DMA after every reception/transmission
- Removed unused Kconfig variables
- I2S_CAVS_TX_BLOCK_COUNT
- I2S_CAVS_RX_BLOCK_COUNT
Signed-off-by: Sathish Kuttan <sathish.k.kuttan@intel.com>
77 lines
1.5 KiB
Plaintext
77 lines
1.5 KiB
Plaintext
# Kconfig - Intel S1000 I2S configuration options
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#
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# Copyright (c) 2017 Intel Corporation
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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menuconfig I2S_CAVS
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bool "Intel I2S (SSP) Bus Driver"
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depends on BOARD_INTEL_S1000_CRB
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select DMA
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help
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Enable Inter Sound (I2S) bus driver for Intel_S1000 based on
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Synchronous Serial Port (SSP) module.
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if I2S_CAVS
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config I2S_CAVS_DMA_NAME
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string "DMA device name"
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default "DMA_0"
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help
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Name of the DMA device this device driver can use.
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config I2S_CAVS_IRQ_PRI
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int "Interrupt priority"
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default 0
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config I2S_CAVS_1_NAME
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string "I2S 1 device name"
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default "I2S_1"
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config I2S_CAVS_1_DMA_TX_CHANNEL
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int "DMA TX channel"
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default 2
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help
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DMA channel number to use for I2S1 TX transfer.
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config I2S_CAVS_1_DMA_RX_CHANNEL
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int "DMA RX channel"
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default 3
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help
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DMA channel number to use for I2S1 RX transfer.
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config I2S_CAVS_2_NAME
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string "I2S 2 device name"
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default "I2S_2"
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config I2S_CAVS_2_DMA_TX_CHANNEL
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int "DMA TX channel"
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default 4
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help
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DMA channel number to use for I2S2 TX transfer.
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config I2S_CAVS_2_DMA_RX_CHANNEL
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int "DMA RX channel"
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default 5
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help
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DMA channel number to use for I2S2 RX transfer.
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config I2S_CAVS_3_NAME
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string "I2S 3 device name"
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default "I2S_3"
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config I2S_CAVS_3_DMA_TX_CHANNEL
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int "DMA TX channel"
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default 6
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help
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DMA channel number to use for I2S3 TX transfer.
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config I2S_CAVS_3_DMA_RX_CHANNEL
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int "DMA RX channel"
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default 7
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help
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DMA channel number to use for I2S3 RX transfer.
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endif # I2S_CAVS
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