Port STM32L4 SAI driver from MDK.

This commit is contained in:
Gregory Nutt 2017-02-17 15:13:36 -06:00
parent 377fadc816
commit e4e7528b1a
5 changed files with 1740 additions and 62 deletions

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@ -49,6 +49,8 @@ config STM32L4_STM32L476XX
select STM32L4_HAVE_USART3
select STM32L4_HAVE_UART4
select STM32L4_HAVE_UART5
select STM32L4_HAVE_SAI1
select STM32L4_HAVE_SAI2
config STM32L4_STM32L486XX
bool
@ -62,6 +64,8 @@ config STM32L4_STM32L486XX
select STM32L4_HAVE_USART3
select STM32L4_HAVE_UART4
select STM32L4_HAVE_UART5
select STM32L4_HAVE_SAI1
select STM32L4_HAVE_SAI2
select STM32L4_FLASH_1024KB
choice
@ -118,6 +122,14 @@ config STM32L4_HAVE_LTDC
bool
default n
config STM32L4_HAVE_SAI1
bool
default n
config STM32L4_HAVE_SAI2
bool
default n
# These "hidden" settings are the OR of individual peripheral selections
# indicating that the general capability is required.
@ -212,6 +224,38 @@ config STM32L4_RNG
default n
select ARCH_HAVE_RNG
config STM32L4_SAI1_A
bool "SAI1 Block A"
default n
select AUDIO
select I2S
select SCHED_WORKQUEUE
select STM32L4_SAI
config STM32L4_SAI1_B
bool "SAI1 Block B"
default n
select AUDIO
select I2S
select SCHED_WORKQUEUE
select STM32L4_SAI
config STM32L4_SAI2_A
bool "SAI2 Block A"
default n
select AUDIO
select I2S
select SCHED_WORKQUEUE
select STM32L4_SAI
config STM32L4_SAI2_B
bool "SAI2 Block B"
default n
select AUDIO
select I2S
select SCHED_WORKQUEUE
select STM32L4_SAI
comment "AHB3 Peripherals"
config STM32L4_FMC
@ -556,12 +600,10 @@ config STM32L4_TIM17
config STM32L4_SAI1
bool "SAI1"
default n
select STM32L4_SAI
config STM32L4_SAI2
bool "SAI2"
default n
select STM32L4_SAI
config STM32L4_DFSDM
bool "DFSDM"
@ -2996,4 +3038,68 @@ endchoice
endmenu
menu "SAI Configuration"
depends on STM32L4_SAI
choice
prompt "Operation mode"
default STM32L4_SAI_DMA
---help---
Select the operation mode the SAI driver should use.
config STM32L4_SAI_POLLING
bool "Polling"
---help---
The SAI registers are polled for events.
config STM32L4_SAI_INTERRUPTS
bool "Interrupt"
---help---
Select to enable interrupt driven SAI support.
config STM32L4_SAI_DMA
bool "DMA"
---help---
Use DMA to improve SAI transfer performance.
endchoice # Operation mode
choice
prompt "SAI1 synchronization enable"
default STM32L4_SAI1_BOTH_ASYNC
depends on STM32L4_SAI1_A && STM32L4_SAI1_B
---help---
Select the synchronization mode of the SAI sub-blocks
config STM32L4_SAI1_BOTH_ASYNC
bool "Both asynchronous"
config STM32L4_SAI1_A_SYNC_WITH_B
bool "Block A is synchronous with Block B"
config STM32L4_SAI1_B_SYNC_WITH_A
bool "Block B is synchronous with Block A"
endchoice # SAI1 synchronization enable
choice
prompt "SAI2 synchronization enable"
default STM32L4_SAI2_BOTH_ASYNC
depends on STM32L4_SAI2_A && STM32L4_SAI2_B
---help---
Select the synchronization mode of the SAI sub-blocks
config STM32L4_SAI2_BOTH_ASYNC
bool "Both asynchronous"
config STM32L4_SAI2_A_SYNC_WITH_B
bool "Block A is synchronous with Block B"
config STM32L4_SAI2_B_SYNC_WITH_A
bool "Block B is synchronous with Block A"
endchoice # SAI2 synchronization enable
endmenu
endif # ARCH_CHIP_STM32L4

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@ -1,6 +1,7 @@
############################################################################
# arch/arm/src/stm32l4/Make.defs
#
# Copyright (C) 2017 Gregory Nutt. All rights reserved.
# Copyright (C) 2015-2016 Sebastien Lorquet. All rights reserved.
# Author: Sebastien Lorquet <sebastien@lorquet.fr>
#
@ -181,6 +182,10 @@ ifeq ($(CONFIG_STM32L4_RNG),y)
CHIP_CSRCS += stm32l4_rng.c
endif
ifeq ($(CONFIG_STM32L4_SAI),y)
CHIP_CSRCS += stm32l4_sai.c
endif
ifeq ($(CONFIG_PWM),y)
CHIP_CSRCS += stm32l4_pwm.c
endif

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@ -51,65 +51,65 @@
#define STM32L4_SAI_GCR_OFFSET 0x0000 /* SAI Global Configuration Register */
#define STM32L4_SAI_ACR1_OFFSET 0x0004 /* SAI Configuration Register 1 A */
#define STM32L4_SAI_ACR2_OFFSET 0x0008 /* SAI Configuration Register 2 A */
#define STM32L4_SAI_AFRCR_OFFSET 0x000c /* SAI Frame Configuration Register A */
#define STM32L4_SAI_ASLOTR_OFFSET 0x0010 /* SAI Slot Register A */
#define STM32L4_SAI_AIM_OFFSET 0x0014 /* SAI Interrupt Mask Register 2 A */
#define STM32L4_SAI_ASR_OFFSET 0x0018 /* SAI Status Register A */
#define STM32L4_SAI_ACLRFR_OFFSET 0x001c /* SAI Clear Flag Register A */
#define STM32L4_SAI_ADR_OFFSET 0x0020 /* SAI Data Register A */
#define STM32L4_SAI_A_OFFSET 0x0004
#define STM32L4_SAI_B_OFFSET 0x0024
#define STM32L4_SAI_BCR1_OFFSET 0x0024 /* SAI Configuration Register 1 B */
#define STM32L4_SAI_BCR2_OFFSET 0x0028 /* SAI Configuration Register 2 B */
#define STM32L4_SAI_BFRCR_OFFSET 0x002c /* SAI Frame Configuration Register B */
#define STM32L4_SAI_BSLOTR_OFFSET 0x0030 /* SAI Slot Register B */
#define STM32L4_SAI_BIM_OFFSET 0x0034 /* SAI Interrupt Mask Register 2 B */
#define STM32L4_SAI_BSR_OFFSET 0x0038 /* SAI Status Register B */
#define STM32L4_SAI_BCLRFR_OFFSET 0x003c /* SAI Clear Flag Register A */
#define STM32L4_SAI_BDR_OFFSET 0x0040 /* SAI Data Register B */
#define STM32L4_SAI_CR1_OFFSET 0x0000 /* SAI Configuration Register 1 A */
#define STM32L4_SAI_CR2_OFFSET 0x0004 /* SAI Configuration Register 2 A */
#define STM32L4_SAI_FRCR_OFFSET 0x0008 /* SAI Frame Configuration Register A */
#define STM32L4_SAI_SLOTR_OFFSET 0x000c /* SAI Slot Register A */
#define STM32L4_SAI_IM_OFFSET 0x0010 /* SAI Interrupt Mask Register 2 A */
#define STM32L4_SAI_SR_OFFSET 0x0014 /* SAI Status Register A */
#define STM32L4_SAI_CLRFR_OFFSET 0x0018 /* SAI Clear Flag Register A */
#define STM32L4_SAI_DR_OFFSET 0x001c /* SAI Data Register A */
/* Register Addresses ***************************************************************/
#define STM32L4_SAI1_GCR (STM32L4_SAI1_BASE+STM32L4_SAI_GCR_OFFSET)
#define STM32L4_SAI1_GCR (STM32L4_SAI_GCR_OFFSET)
#define STM32L4_SAI1_ACR1 (STM32L4_SAI1_BASE+STM32L4_SAI_ACR1_OFFSET)
#define STM32L4_SAI1_ACR2 (STM32L4_SAI1_BASE+STM32L4_SAI_ACR2_OFFSET)
#define STM32L4_SAI1_AFRCR (STM32L4_SAI1_BASE+STM32L4_SAI_AFRCR_OFFSET)
#define STM32L4_SAI1_ASLOTR (STM32L4_SAI1_BASE+STM32L4_SAI_ASLOTR_OFFSET)
#define STM32L4_SAI1_AIM (STM32L4_SAI1_BASE+STM32L4_SAI_AIM_OFFSET)
#define STM32L4_SAI1_ASR (STM32L4_SAI1_BASE+STM32L4_SAI_ASR_OFFSET)
#define STM32L4_SAI1_ACLRFR (STM32L4_SAI1_BASE+STM32L4_SAI_ACLRFR_OFFSET)
#define STM32L4_SAI1_ADR (STM32L4_SAI1_BASE+STM32L4_SAI_ADR_OFFSET)
#define STM32L4_SAI1_A_BASE (STM32L4_SAI1_BASE+STM32L4_SAI_A_OFFSET)
#define STM32L4_SAI1_B_BASE (STM32L4_SAI1_BASE+STM32L4_SAI_B_OFFSET)
#define STM32L4_SAI1_BCR1 (STM32L4_SAI1_BASE+STM32L4_SAI_BCR1_OFFSET)
#define STM32L4_SAI1_BCR2 (STM32L4_SAI1_BASE+STM32L4_SAI_BCR2_OFFSET)
#define STM32L4_SAI1_BFRCR (STM32L4_SAI1_BASE+STM32L4_SAI_BFRCR_OFFSET)
#define STM32L4_SAI1_BSLOTR (STM32L4_SAI1_BASE+STM32L4_SAI_BSLOTR_OFFSET)
#define STM32L4_SAI1_BIM (STM32L4_SAI1_BASE+STM32L4_SAI_BIM_OFFSET)
#define STM32L4_SAI1_BSR (STM32L4_SAI1_BASE+STM32L4_SAI_BSR_OFFSET)
#define STM32L4_SAI1_BCLRFR (STM32L4_SAI1_BASE+STM32L4_SAI_BCLRFR_OFFSET)
#define STM32L4_SAI1_BDR (STM32L4_SAI1_BASE+STM32L4_SAI_BDR_OFFSET)
#define STM32L4_SAI1_ACR1 (STM32L4_SAI1_A_BASE+STM32L4_SAI_ACR1_OFFSET)
#define STM32L4_SAI1_ACR2 (STM32L4_SAI1_A_BASE+STM32L4_SAI_ACR2_OFFSET)
#define STM32L4_SAI1_AFRCR (STM32L4_SAI1_A_BASE+STM32L4_SAI_AFRCR_OFFSET)
#define STM32L4_SAI1_ASLOTR (STM32L4_SAI1_A_BASE+STM32L4_SAI_ASLOTR_OFFSET)
#define STM32L4_SAI1_AIM (STM32L4_SAI1_A_BASE+STM32L4_SAI_AIM_OFFSET)
#define STM32L4_SAI1_ASR (STM32L4_SAI1_A_BASE+STM32L4_SAI_ASR_OFFSET)
#define STM32L4_SAI1_ACLRFR (STM32L4_SAI1_A_BASE+STM32L4_SAI_ACLRFR_OFFSET)
#define STM32L4_SAI1_ADR (STM32L4_SAI1_A_BASE+STM32L4_SAI_ADR_OFFSET)
#define STM32L4_SAI1_BCR1 (STM32L4_SAI1_B_BASE+STM32L4_SAI_BCR1_OFFSET)
#define STM32L4_SAI1_BCR2 (STM32L4_SAI1_B_BASE+STM32L4_SAI_BCR2_OFFSET)
#define STM32L4_SAI1_BFRCR (STM32L4_SAI1_B_BASE+STM32L4_SAI_BFRCR_OFFSET)
#define STM32L4_SAI1_BSLOTR (STM32L4_SAI1_B_BASE+STM32L4_SAI_BSLOTR_OFFSET)
#define STM32L4_SAI1_BIM (STM32L4_SAI1_B_BASE+STM32L4_SAI_BIM_OFFSET)
#define STM32L4_SAI1_BSR (STM32L4_SAI1_B_BASE+STM32L4_SAI_BSR_OFFSET)
#define STM32L4_SAI1_BCLRFR (STM32L4_SAI1_B_BASE+STM32L4_SAI_BCLRFR_OFFSET)
#define STM32L4_SAI1_BDR (STM32L4_SAI1_B_BASE+STM32L4_SAI_BDR_OFFSET)
#define STM32L4_SAI2_GCR (STM32L4_SAI2_BASE+STM32L4_SAI_GCR_OFFSET)
#define STM32L4_SAI2_ACR1 (STM32L4_SAI2_BASE+STM32L4_SAI_ACR1_OFFSET)
#define STM32L4_SAI2_ACR2 (STM32L4_SAI2_BASE+STM32L4_SAI_ACR2_OFFSET)
#define STM32L4_SAI2_AFRCR (STM32L4_SAI2_BASE+STM32L4_SAI_AFRCR_OFFSET)
#define STM32L4_SAI2_ASLOTR (STM32L4_SAI2_BASE+STM32L4_SAI_ASLOTR_OFFSET)
#define STM32L4_SAI2_AIM (STM32L4_SAI2_BASE+STM32L4_SAI_AIM_OFFSET)
#define STM32L4_SAI2_ASR (STM32L4_SAI2_BASE+STM32L4_SAI_ASR_OFFSET)
#define STM32L4_SAI2_ACLRFR (STM32L4_SAI2_BASE+STM32L4_SAI_ACLRFR_OFFSET)
#define STM32L4_SAI2_ADR (STM32L4_SAI2_BASE+STM32L4_SAI_ADR_OFFSET)
#define STM32L4_SAI2_A_BASE (STM32L4_SAI2_BASE+STM32L4_SAI_A_OFFSET)
#define STM32L4_SAI2_B_BASE (STM32L4_SAI2_BASE+STM32L4_SAI_B_OFFSET)
#define STM32L4_SAI2_BCR1 (STM32L4_SAI2_BASE+STM32L4_SAI_BCR1_OFFSET)
#define STM32L4_SAI2_BCR2 (STM32L4_SAI2_BASE+STM32L4_SAI_BCR2_OFFSET)
#define STM32L4_SAI2_BFRCR (STM32L4_SAI2_BASE+STM32L4_SAI_BFRCR_OFFSET)
#define STM32L4_SAI2_BSLOTR (STM32L4_SAI2_BASE+STM32L4_SAI_BSLOTR_OFFSET)
#define STM32L4_SAI2_BIM (STM32L4_SAI2_BASE+STM32L4_SAI_BIM_OFFSET)
#define STM32L4_SAI2_BSR (STM32L4_SAI2_BASE+STM32L4_SAI_BSR_OFFSET)
#define STM32L4_SAI2_BCLRFR (STM32L4_SAI2_BASE+STM32L4_SAI_BCLRFR_OFFSET)
#define STM32L4_SAI2_BDR (STM32L4_SAI2_BASE+STM32L4_SAI_BDR_OFFSET)
#define STM32L4_SAI2_ACR1 (STM32L4_SAI2_A_BASE+STM32L4_SAI_ACR1_OFFSET)
#define STM32L4_SAI2_ACR2 (STM32L4_SAI2_A_BASE+STM32L4_SAI_ACR2_OFFSET)
#define STM32L4_SAI2_AFRCR (STM32L4_SAI2_A_BASE+STM32L4_SAI_AFRCR_OFFSET)
#define STM32L4_SAI2_ASLOTR (STM32L4_SAI2_A_BASE+STM32L4_SAI_ASLOTR_OFFSET)
#define STM32L4_SAI2_AIM (STM32L4_SAI2_A_BASE+STM32L4_SAI_AIM_OFFSET)
#define STM32L4_SAI2_ASR (STM32L4_SAI2_A_BASE+STM32L4_SAI_ASR_OFFSET)
#define STM32L4_SAI2_ACLRFR (STM32L4_SAI2_A_BASE+STM32L4_SAI_ACLRFR_OFFSET)
#define STM32L4_SAI2_ADR (STM32L4_SAI2_A_BASE+STM32L4_SAI_ADR_OFFSET)
#define STM32L4_SAI2_BCR1 (STM32L4_SAI2_B_BASE+STM32L4_SAI_BCR1_OFFSET)
#define STM32L4_SAI2_BCR2 (STM32L4_SAI2_B_BASE+STM32L4_SAI_BCR2_OFFSET)
#define STM32L4_SAI2_BFRCR (STM32L4_SAI2_B_BASE+STM32L4_SAI_BFRCR_OFFSET)
#define STM32L4_SAI2_BSLOTR (STM32L4_SAI2_B_BASE+STM32L4_SAI_BSLOTR_OFFSET)
#define STM32L4_SAI2_BIM (STM32L4_SAI2_B_BASE+STM32L4_SAI_BIM_OFFSET)
#define STM32L4_SAI2_BSR (STM32L4_SAI2_B_BASE+STM32L4_SAI_BSR_OFFSET)
#define STM32L4_SAI2_BCLRFR (STM32L4_SAI2_B_BASE+STM32L4_SAI_BCLRFR_OFFSET)
#define STM32L4_SAI2_BDR (STM32L4_SAI2_B_BASE+STM32L4_SAI_BDR_OFFSET)
/* Register Bitfield Definitions ****************************************************/
@ -128,10 +128,10 @@
#define SAI_CR1_MODE_SHIFT (0) /* Bits 0-1: SAI audio block mode */
#define SAI_CR1_MODE_MASK (3 << SAI_CR1_MODE_SHIFT)
# define SAI_CR1_MODE_MXMIT (0 << SAI_CR1_MODE_SHIFT) /* Master transmitter */
# define SAI_CR1_MODE_MRECV (1 << SAI_CR1_MODE_SHIFT) /* Master receiver */
# define SAI_CR1_MODE_SXMIT (2 << SAI_CR1_MODE_SHIFT) /* Slave transmitter */
# define SAI_CR1_MODE_SRECV (3 << SAI_CR1_MODE_SHIFT) /* Slave receiver */
# define SAI_CR1_MODE_MASTER_TX (0 << SAI_CR1_MODE_SHIFT) /* Master transmitter */
# define SAI_CR1_MODE_MASTER_RX (1 << SAI_CR1_MODE_SHIFT) /* Master receiver */
# define SAI_CR1_MODE_SLAVE_TX (2 << SAI_CR1_MODE_SHIFT) /* Slave transmitter */
# define SAI_CR1_MODE_SLAVE_RX (3 << SAI_CR1_MODE_SHIFT) /* Slave receiver */
#define SAI_CR1_PRTCFG_SHIFT (2) /* Bits 2-3: Protocol configuration */
#define SAI_CR1_PRTCFG_MASK (3 << SAI_CR1_PRTCFG_SHIFT)
# define SAI_CR1_PRTCFG_FREE (0 << SAI_CR1_PRTCFG_SHIFT) /* Free protocol */
@ -167,12 +167,12 @@
/* SAI Configuration Register 2 */
#define SAI_CR2_FTH_SHIFT (x0x) /* Bits 0-2: FIFO threshold */
#define SAI_CR2_FTH_SHIFT (0) /* Bits 0-2: FIFO threshold */
#define SAI_CR2_FTH_MASK (7 << SAI_CR2_FTH_SHIFT)
# define SAI_CR2_FTH_EMPTY (0 << SAI_CR2_FTH_SHIFT) /* FIFO empty */
# define SAI_CR2_FTH_25PCT (1 << SAI_CR2_FTH_SHIFT) /* 25% FIFO */
# define SAI_CR2_FTH_50PCT (2 << SAI_CR2_FTH_SHIFT) /* 50% FIFO */
# define SAI_CR2_FTH_75PCT (3 << SAI_CR2_FTH_SHIFT) /* 75% FIFO */
# define SAI_CR2_FTH_1QF (1 << SAI_CR2_FTH_SHIFT) /* 1/4 FIFO */
# define SAI_CR2_FTH_HF (2 << SAI_CR2_FTH_SHIFT) /* 1/2 FIFO */
# define SAI_CR2_FTH_3QF (3 << SAI_CR2_FTH_SHIFT) /* 3/4 FIFO */
# define SAI_CR2_FTH_FULL (4 << SAI_CR2_FTH_SHIFT) /* FIFO full */
#define SAI_CR2_FFLUSH (1 << 3) /* Bit 3: FIFO flush */
#define SAI_CR2_TRIS (1 << 4) /* Bit 4: Tristate management on data line */
@ -193,13 +193,19 @@
#define SAI_FRCR_FRL_SHIFT (0) /* Bits 0-7: Frame length */
#define SAI_FRCR_FRL_MASK (0xff << SAI_FRCR_FRL_SHIFT)
# define SAI_FRCR_FRL(n) ((uint32_t)(n) << SAI_FRCR_FRL_SHIFT)
# define SAI_FRCR_FRL(n) ((uint32_t)((n) - 1) << SAI_FRCR_FRL_SHIFT)
#define SAI_FRCR_FSALL_SHIFT (8) /* Bits 8-14: Frame synchronization active level length */
#define SAI_FRCR_FSALL_MASK (0x7f << SAI_FRCR_FSALL_SHIFT)
# define SAI_FRCR_FSALL(n) ((uint32_t)(n) << SAI_FRCR_FSALL_SHIFT)
# define SAI_FRCR_FSALL(n) ((uint32_t)((n) - 1) << SAI_FRCR_FSALL_SHIFT)
#define SAI_FRCR_FSDEF (1 << 16) /* Bit 16: Frame synchronization definition */
# define SAI_FRCR_FSDEF_SF (0) /* FS signal is a start frame signal */
# define SAI_FRCR_FSDEF_CHID SAI_FRCR_FSDEF /* FS signal is a start of frame + channel side ID */
#define SAI_FRCR_FSPOL (1 << 17) /* Bit 17: Frame synchronization polarity */
# define SAI_FRCR_FSPOL_LOW (0) /* FS is active low */
# define SAI_FRCR_FSPOL_HIGH SAI_FRCR_FSPOL /* FS is active high */
#define SAI_FRCR_FSOFF (1 << 18) /* Bit 18: Frame synchronization offset */
# define SAI_FRCR_FSOFF_FB (0) /* FS on first bit of slot 0 */
# define SAI_FRCR_FSOFF_BFB SAI_FRCR_FSOFF /* FS one bit before first bit of slot 0 */
/* Bits 19-31: Reserved */
/* SAI Slot Register */
@ -215,11 +221,27 @@
# define SAI_SLOTR_SLOTSZ_32BIT (2 << SAI_SLOTR_SLOTSZ_SHIFT) /* 32-bit */
#define SAI_SLOTR_NBSLOT_SHIFT (0) /* Bits 0-3: Number of slots in an audio frame */
#define SAI_SLOTR_NBSLOT_MASK (15 << SAI_SLOTR_NBSLOT_SHIFT)
# define SAI_SLOTR_NBSLOT(n) ((uint32_t)(n) << SAI_SLOTR_NBSLOT_SHIFT)
# define SAI_SLOTR_NBSLOT(n) ((uint32_t)((n) - 1) << SAI_SLOTR_NBSLOT_SHIFT)
/* Bits 12-15: Reserved */
#define SAI_SLOTR_SLOTEN_SHIFT (16) /* Bits 16-31: Slot enable */
#define SAI_SLOTR_SLOTEN_MASK (0xffff << SAI_SLOTR_SLOTEN_SHIFT)
# define SAI_SLOTR_SLOTEN(n) ((uint32_t)(n) << SAI_SLOTR_SLOTEN_SHIFT)
# define SAI_SLOTR_SLOTEN_0 (1 << 16) /* Bit 16: Slot 0 Enabled */
# define SAI_SLOTR_SLOTEN_1 (1 << 17) /* Bit 17: Slot 1 Enabled */
# define SAI_SLOTR_SLOTEN_2 (1 << 18) /* Bit 18: Slot 2 Enabled */
# define SAI_SLOTR_SLOTEN_3 (1 << 19) /* Bit 19: Slot 3 Enabled */
# define SAI_SLOTR_SLOTEN_4 (1 << 20) /* Bit 20: Slot 4 Enabled */
# define SAI_SLOTR_SLOTEN_5 (1 << 21) /* Bit 21: Slot 5 Enabled */
# define SAI_SLOTR_SLOTEN_6 (1 << 22) /* Bit 22: Slot 6 Enabled */
# define SAI_SLOTR_SLOTEN_7 (1 << 23) /* Bit 23: Slot 7 Enabled */
# define SAI_SLOTR_SLOTEN_8 (1 << 24) /* Bit 24: Slot 8 Enabled */
# define SAI_SLOTR_SLOTEN_9 (1 << 25) /* Bit 25: Slot 9 Enabled */
# define SAI_SLOTR_SLOTEN_10 (1 << 26) /* Bit 26: Slot 10 Enabled */
# define SAI_SLOTR_SLOTEN_11 (1 << 27) /* Bit 27: Slot 11 Enabled */
# define SAI_SLOTR_SLOTEN_12 (1 << 28) /* Bit 28: Slot 12 Enabled */
# define SAI_SLOTR_SLOTEN_13 (1 << 29) /* Bit 29: Slot 13 Enabled */
# define SAI_SLOTR_SLOTEN_14 (1 << 30) /* Bit 30: Slot 14 Enabled */
# define SAI_SLOTR_SLOTEN_15 (1 << 31) /* Bit 31: Slot 15 Enabled */
/* SAI Interrupt Mask Register 2, SAI Status Register, and SAI Clear Flag Register */

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@ -0,0 +1,95 @@
/******************************************************************************
* arch/arm/src/stm32l4/stm32l4_sai.h
*
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
* Copyright (c) 2016 Motorola Mobility, LLC.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************/
#ifndef __ARCH_ARM_SRC_STM32L4_STM32L4_SAI_H
#define __ARCH_ARM_SRC_STM32L4_STM32L4_SAI_H
/******************************************************************************
* Included Files
******************************************************************************/
#include <nuttx/config.h>
#include "chip.h"
#include "chip/stm32l4_sai.h"
#include <nuttx/audio/i2s.h>
/******************************************************************************
* Pre-processor definitions
******************************************************************************/
#define SAI1_BLOCK_A 0
#define SAI1_BLOCK_B 1
#define SAI2_BLOCK_A 2
#define SAI2_BLOCK_B 3
/******************************************************************************
* Public Function Prototypes
******************************************************************************/
#ifndef __ASSEMBLY__
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Name: stm32l4_sai_initialize
*
* Description:
* Initialize the selected SAI block
*
* Input Parameters:
* intf - I2S interface number (identifying the "logical" SAI interface)
*
* Returned Value:
* Valid I2S device structure reference on success; a NULL on failure
*
****************************************************************************/
struct i2s_dev_s *stm32l4_sai_initialize(int intf);
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_ARM_SRC_STM32L4_STM32L4_SAI_H */