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drivers: dmic: Intel PDM digital mic driver

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Added an implementation of driver for Intel PDM digital microphone
controller .

Signed-off-by: Sathish Kuttan <sathish.k.kuttan@intel.com>
This commit is contained in:
Sathish Kuttan 2018-05-26 21:49:15 -07:00 • committed by Anas Nashif
commit c91faf9008
17 changed files with 3376 additions and 0 deletions
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10
soc/xtensa/intel_s1000/soc.h
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@ -62,6 +62,8 @@
#define CAVS_DMA1_OWNERSHIP_REG (0x00071A62)
#define CAVS_DMA2_OWNERSHIP_REG (0x00071A64)
#define DMA_HANDSHAKE_DMIC_RXA 0
#define DMA_HANDSHAKE_DMIC_RXB 1
#define DMA_HANDSHAKE_SSP0_TX 2
#define DMA_HANDSHAKE_SSP0_RX 3
#define DMA_HANDSHAKE_SSP1_TX 4
@ -71,6 +73,14 @@
#define DMA_HANDSHAKE_SSP3_TX 8
#define DMA_HANDSHAKE_SSP3_RX 9
/* DMA Channel Allocation
* FIXME: I2S Driver assigns channel in Kconfig.
* Perhaps DTS is a better option
*/
#define DMIC_DMA_DEV_NAME CONFIG_DMA_0_NAME
#define DMA_CHANNEL_DMIC_RXA 0
#define DMA_CHANNEL_DMIC_RXB 1
/* I2S */
#define I2S0_CAVS_IRQ 0x00000010
#define I2S1_CAVS_IRQ 0x00000110