mirror of
https://github.com/apache/nuttx.git
synced 2026-05-21 21:34:07 +08:00
add simple wm8994 codec driver
This commit is contained in:
Chaochao Cui
committed by
Alan Carvalho de Assis
Alan Carvalho de Assis
parent
b1a042734f
commit
fbb3cd660b
@@ -82,8 +82,8 @@ extern uint32_t _vectors[]; /* See stm32_vectors.S */
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* Name: stm32_mco1config
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*
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* Description:
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* Selects the clock source to output on MCO1 pin (PA8). PA8 should be configured in
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* alternate function mode.
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* Selects the clock source to output on MCO1 pin (PA8). PA8 should be configured
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* in alternate function mode.
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*
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* Input Parameters:
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* source - One of the definitions for the RCC_CFGR_MCO1 definitions from
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@@ -103,7 +103,7 @@ static inline void stm32_mco1config(uint32_t source, uint32_t div)
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uint32_t regval;
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regval = getreg32(STM32_RCC_CFGR);
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regval &= ~(RCC_CFGR_MCO1_MASK|RCC_CFGR_MCO1PRE_MASK);
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regval &= ~(RCC_CFGR_MCO1_MASK | RCC_CFGR_MCO1PRE_MASK);
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regval |= (source | div);
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putreg32(regval, STM32_RCC_CFGR);
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}
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@@ -112,8 +112,8 @@ static inline void stm32_mco1config(uint32_t source, uint32_t div)
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* Name: stm32_mco2config
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*
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* Description:
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* Selects the clock source to output on MCO2 pin (PC9). PC9 should be configured in
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* alternate function mode.
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* Selects the clock source to output on MCO2 pin (PC9). PC9 should be configured
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* in alternate function mode.
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*
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* Input Parameters:
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* source - One of the definitions for the RCC_CFGR_MCO2 definitions from
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@@ -133,7 +133,7 @@ static inline void stm32_mco2config(uint32_t source, uint32_t div)
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uint32_t regval;
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regval = getreg32(STM32_RCC_CFGR);
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regval &= ~(RCC_CFGR_MCO2_MASK|RCC_CFGR_MCO2PRE_MASK);
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regval &= ~(RCC_CFGR_MCO2_MASK | RCC_CFGR_MCO2PRE_MASK);
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regval |= (source | div);
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putreg32(regval, STM32_RCC_CFGR);
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}
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@@ -223,44 +223,44 @@ void stm32_clockenable(void);
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void stm32_rcc_enablelse(void);
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/****************************************************************************
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/************************************************************************************
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* Name: stm32_rcc_enablelsi
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*
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* Description:
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* Enable the Internal Low-Speed (LSI) RC Oscillator.
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*
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****************************************************************************/
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************************************************************************************/
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void stm32_rcc_enablelsi(void);
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/****************************************************************************
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/************************************************************************************
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* Name: stm32_rcc_disablelsi
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*
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* Description:
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* Disable the Internal Low-Speed (LSI) RC Oscillator.
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*
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****************************************************************************/
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************************************************************************************/
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void stm32_rcc_disablelsi(void);
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#if defined(CONFIG_STM32F7_STM32F76XX) || defined(CONFIG_STM32F7_STM32F77XX)
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/****************************************************************************
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/************************************************************************************
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* Name: stm32f7x9_rcc_dsisrcphy
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*
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* Description:
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* Set DSI clock source to DSI PHY
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*
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****************************************************************************/
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************************************************************************************/
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void stm32f7x9_rcc_dsisrcphy(void);
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/****************************************************************************
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/************************************************************************************
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* Name: stm32f7x9_rcc_dsisrcpllr
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*
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* Description:
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* Set DSI clock source to PLLR
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*
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****************************************************************************/
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************************************************************************************/
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void stm32f7x9_rcc_dsisrcpllr(void);
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#endif
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@@ -236,10 +236,8 @@ struct stm32f7_sai_s
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#ifdef CONFIG_DEBUG_I2S_INFO
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static void sai_dump_regs(struct stm32f7_sai_s *priv, const char *msg);
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static void rcc_dump_regs(const char *msg);
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#else
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# define sai_dump_regs(s,m)
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# define rcc_dump_regs(m)
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#endif
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/* Semaphore helpers */
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@@ -704,51 +702,6 @@ static void sai_dump_regs(struct stm32f7_sai_s *priv, const char *msg)
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}
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#endif
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/****************************************************************************
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* Name: rcc_dump_regs
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*
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* Description:
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* Dump the contents of all rcc block registers
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*
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* Input Parameters:
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* msg - Message to print before the register data
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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#ifdef CONFIG_DEBUG_I2S_INFO
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static void rcc_dump_regs(const char *msg)
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{
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if (msg)
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{
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i2sinfo("%s\n", msg);
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}
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#if 0
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/* RCC_PLLSAICFGR */
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uint32_t pll_sai_cfgr = getreg32(STM32_RCC_PLLSAICFGR);
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i2sinfo("PLLSAICFGR = %08x\n", pll_sai_cfgr);
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uint32_t pllsain = (pll_sai_cfgr & RCC_PLLSAICFGR_PLLSAIN_MASK) >>
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RCC_PLLSAICFGR_PLLSAIN_SHIFT;
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i2sinfo("\t\tPLLSAICFGR PLLSAIN[14:6] = %d\n", pllsain);
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uint32_t pllsaip = (pll_sai_cfgr & RCC_PLLSAICFGR_PLLSAIP_MASK) >>
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RCC_PLLSAICFGR_PLLSAIP_SHIFT;
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i2sinfo("\t\tPLLSAICFGR PLLSAIP[17:16] = %d\n", pllsaip);
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uint32_t pllsaiq = (pll_sai_cfgr & RCC_PLLSAICFGR_PLLSAIQ_MASK) >>
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RCC_PLLSAICFGQ_PLLSAIP_SHIFT;
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i2sinfo("\t\tPLLSAICFGR PLLSAIQ[27:24] = %d\n", pllsaiq);
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uint32_t pllsair = (pll_sai_cfgr & RCC_PLLSAICFGR_PLLSAIR_MASK) >>
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RCC_PLLSAICFGR_PLLSAIP_SHIFT;
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i2sinfo("\t\tPLLSAICFGR PLLSAIR[30:28] = %d\n", pllsair);
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#endif
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}
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#endif
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/****************************************************************************
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* Name: sai_exclsem_take
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*
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@@ -241,7 +241,7 @@ static inline void rcc_enableahb1(void)
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regval |= RCC_AHB1ENR_OTGHSEN;
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#endif
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#endif /* CONFIG_STM32F7_OTGFSHS */
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#endif /* CONFIG_STM32F7_OTGFSHS */
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putreg32(regval, STM32_RCC_AHB1ENR); /* Enable peripherals */
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}
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@@ -857,7 +857,8 @@ static void stm32_stdclockconfig(void)
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/* Wait until the PLL source is used as the system clock source */
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while ((getreg32(STM32_RCC_CFGR) & RCC_CFGR_SWS_MASK) != RCC_CFGR_SWS_PLL)
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while ((getreg32(STM32_RCC_CFGR)
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& RCC_CFGR_SWS_MASK) != RCC_CFGR_SWS_PLL)
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{
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}
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@@ -1001,7 +1002,3 @@ static inline void rcc_enableperipherals(void)
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rcc_enableapb1();
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rcc_enableapb2();
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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@@ -0,0 +1,82 @@
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#
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# This file is autogenerated: PLEASE DO NOT EDIT IT.
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#
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# You can use "make menuconfig" to make any modifications to the installed .config file.
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# You can then do "make savedefconfig" to generate a new defconfig file that includes your
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# modifications.
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#
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# CONFIG_ARCH_FPU is not set
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# CONFIG_SPI_CALLBACK is not set
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CONFIG_ARCH="arm"
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CONFIG_ARCH_BOARD="stm32f746g-disco"
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CONFIG_ARCH_BOARD_STM32F746G_DISCO=y
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CONFIG_ARCH_BUTTONS=y
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CONFIG_ARCH_CHIP="stm32f7"
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CONFIG_ARCH_CHIP_STM32F746NG=y
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CONFIG_ARCH_CHIP_STM32F7=y
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CONFIG_ARCH_STACKDUMP=y
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CONFIG_ARMV7M_DCACHE=y
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CONFIG_ARMV7M_DCACHE_WRITETHROUGH=y
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CONFIG_ARMV7M_DTCM=y
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CONFIG_ARMV7M_ICACHE=y
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CONFIG_AUDIO_I2S=y
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CONFIG_AUDIO_WM8994=y
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CONFIG_BOARD_LATE_INITIALIZE=y
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CONFIG_BOARD_LOOPSPERMSEC=43103
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CONFIG_BUILTIN=y
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CONFIG_DEBUG_ASSERTIONS=y
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CONFIG_DEBUG_AUDIO=y
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CONFIG_DEBUG_AUDIO_ERROR=y
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CONFIG_DEBUG_AUDIO_INFO=y
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CONFIG_DEBUG_AUDIO_WARN=y
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CONFIG_DEBUG_ERROR=y
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CONFIG_DEBUG_FEATURES=y
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CONFIG_DEBUG_I2C=y
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CONFIG_DEBUG_INFO=y
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CONFIG_DEBUG_MEMCARD=y
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CONFIG_DEBUG_MEMCARD_ERROR=y
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CONFIG_DEBUG_SYMBOLS=y
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CONFIG_DEBUG_WARN=y
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CONFIG_DRIVERS_AUDIO=y
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CONFIG_FS_PROCFS=y
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CONFIG_FS_PROCFS_REGISTER=y
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CONFIG_HAVE_CXX=y
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CONFIG_HAVE_CXXINITIALIZE=y
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CONFIG_I2C=y
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CONFIG_INTELHEX_BINARY=y
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CONFIG_MAX_TASKS=16
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CONFIG_MMCSD=y
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CONFIG_MM_REGIONS=3
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CONFIG_NFILE_DESCRIPTORS=8
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CONFIG_NSH_BUILTIN_APPS=y
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CONFIG_NSH_DISABLE_IFUPDOWN=y
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CONFIG_NSH_FILEIOSIZE=512
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CONFIG_NSH_LINELEN=64
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CONFIG_NSH_READLINE=y
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CONFIG_PREALLOC_TIMERS=4
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CONFIG_RAM_SIZE=245760
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CONFIG_RAM_START=0x20010000
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CONFIG_RAW_BINARY=y
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CONFIG_RR_INTERVAL=200
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CONFIG_SCHED_LPWORK=y
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CONFIG_SCHED_WAITPID=y
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CONFIG_SDCLONE_DISABLE=y
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CONFIG_SPI=y
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CONFIG_START_DAY=6
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CONFIG_START_MONTH=12
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CONFIG_START_YEAR=2011
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CONFIG_STM32F7_DMA2=y
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CONFIG_STM32F7_I2C3=y
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CONFIG_STM32F7_SAI2=y
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CONFIG_STM32F7_SAI2_A=y
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CONFIG_STM32F7_SAI2_B=y
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CONFIG_STM32F7_SAI2_B_SYNC_WITH_A=y
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CONFIG_STM32F7_USART1=y
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CONFIG_SYSLOG_CHAR=y
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CONFIG_SYSLOG_DEVPATH="/dev/ttyS0"
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CONFIG_SYSTEM_NSH=y
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CONFIG_SYSTEM_VI=y
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CONFIG_TASK_NAME_SIZE=0
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CONFIG_USART1_SERIAL_CONSOLE=y
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CONFIG_USER_ENTRYPOINT="nsh_main"
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CONFIG_WM8994_REGDUMP=y
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@@ -1,7 +1,7 @@
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/****************************************************************************
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/*****************************************************************************************
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* boards/arm/stm32f7/stm32f746g-disco/include/board.h
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Copyright (C) 2019 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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@@ -31,14 +31,14 @@
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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*****************************************************************************************/
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#ifndef __BOARDS_ARM_STM32F7_STM32F746G_DISCO_INCLUDE_BOARD_H
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#define __BOARDS_ARM_STM32F7_STM32F746G_DISCO_INCLUDE_BOARD_H
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/****************************************************************************
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/*****************************************************************************************
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* Included Files
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****************************************************************************/
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*****************************************************************************************/
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#include <nuttx/config.h>
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@@ -48,11 +48,11 @@
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/* No not include STM32 F7 header files here. */
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/****************************************************************************
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/*****************************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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*****************************************************************************************/
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/* Clocking *****************************************************************/
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/* Clocking */
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/* The STM32F7 Discovery board provides the following clock sources:
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*
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@@ -154,15 +154,22 @@
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/* Configure factors for PLLSAI clock */
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#define CONFIG_STM32F7_PLLSAI 1
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#define STM32_RCC_PLLSAICFGR_PLLSAIN RCC_PLLSAICFGR_PLLSAIN(BOARD_LTDC_PLLSAIN)
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#define STM32_RCC_PLLSAICFGR_PLLSAIP RCC_PLLSAICFGR_PLLSAIP(2)
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#define STM32_RCC_PLLSAICFGR_PLLSAIQ RCC_PLLSAICFGR_PLLSAIQ(2)
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#define STM32_RCC_PLLSAICFGR_PLLSAIR RCC_PLLSAICFGR_PLLSAIR(BOARD_LTDC_PLLSAIR)
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/* SAIx input frequency = 25 / M * N / Q / P
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* 25000000 / 25 * 192 / 2 / 1
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*/
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#define STM32F7_SAI1_FREQUENCY (96000000)
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#define STM32F7_SAI2_FREQUENCY (96000000)
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/* Configure Dedicated Clock Configuration Register */
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#define STM32_RCC_DCKCFGR1_PLLI2SDIVQ RCC_DCKCFGR1_PLLI2SDIVQ(1)
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#define STM32_RCC_DCKCFGR1_PLLSAIDIVQ RCC_DCKCFGR1_PLLSAIDIVQ(1)
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#define STM32_RCC_DCKCFGR1_PLLSAIDIVQ RCC_DCKCFGR1_PLLSAIDIVQ(0)
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#define STM32_RCC_DCKCFGR1_PLLSAIDIVR RCC_DCKCFGR1_PLLSAIDIVR(1)
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#define STM32_RCC_DCKCFGR1_SAI1SRC RCC_DCKCFGR1_SAI1SEL(0)
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#define STM32_RCC_DCKCFGR1_SAI2SRC RCC_DCKCFGR1_SAI2SEL(0)
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@@ -172,6 +179,7 @@
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/* Configure factors for PLLI2S clock */
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#define CONFIG_STM32F7_PLLI2S 1
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#define STM32_RCC_PLLI2SCFGR_PLLI2SN RCC_PLLI2SCFGR_PLLI2SN(192)
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#define STM32_RCC_PLLI2SCFGR_PLLI2SP RCC_PLLI2SCFGR_PLLI2SP(2)
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#define STM32_RCC_PLLI2SCFGR_PLLI2SQ RCC_PLLI2SCFGR_PLLI2SQ(2)
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@@ -253,7 +261,7 @@
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#define BOARD_FLASH_WAITSTATES 7
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/* LED definitions **********************************************************/
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/* LED definitions */
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/* The STM32F746G-DISCO board has numerous LEDs but only one, LD1 located
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* near the reset button, that can be controlled by software (LD2 is a power
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@@ -306,7 +314,7 @@
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#define LED_ASSERTION 2 /* LD1=no change */
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#define LED_PANIC 3 /* LD1=flashing */
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/* Button definitions *******************************************************/
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/* Button definitions */
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/* The STM32F7 Discovery supports one button:
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* Pushbutton B1, labelled "User", is connected to GPIO PI11.
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@@ -317,7 +325,7 @@
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#define NUM_BUTTONS 1
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#define BUTTON_USER_BIT (1 << BUTTON_USER)
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/* Alternate function pin selections ****************************************/
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/* Alternate function pin selections */
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/* USART6:
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*
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@@ -361,12 +369,13 @@
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/* I2C - There is a FT5336 TouchPanel on I2C3 using these pins: */
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#define GPIO_I2C3_SCL GPIO_I2C3_SCL_2
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#define GPIO_I2C3_SDA GPIO_I2C3_SDA_2
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#define ADJ_SLEW_RATE(p) (((p) & ~GPIO_SPEED_MASK) | (GPIO_SPEED_100MHz))
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#define GPIO_I2C3_SCL ADJ_SLEW_RATE(GPIO_I2C3_SCL_2)
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#define GPIO_I2C3_SDA ADJ_SLEW_RATE(GPIO_I2C3_SDA_2)
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#define GPIO_TP_INT (GPIO_INPUT|GPIO_FLOAT|GPIO_EXTI|GPIO_PORTI|GPIO_PIN13)
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#define FT5x06_I2C_ADDRESS 0x38
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#define FT5x06_I2C_ADDRESS (0x70 >> 1)
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/* The STM32 F7 connects to a SMSC LAN8742A PHY using these pins:
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*
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@@ -394,7 +403,7 @@
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#define GPIO_ETH_RMII_TXD0 GPIO_ETH_RMII_TXD0_2
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#define GPIO_ETH_RMII_TXD1 GPIO_ETH_RMII_TXD1_2
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/* LCD definitions **********************************************************/
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/* LCD definitions */
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#define BOARD_LTDC_WIDTH 480
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#define BOARD_LTDC_HEIGHT 272
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@@ -513,4 +522,21 @@
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# define STM32_SDMMC_SDXFR_CLKDIV (2 << STM32_SDMMC_CLKCR_CLKDIV_SHIFT)
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#endif
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#endif /* __BOARDS_ARM_STM32F7_STM32F746G_DISCO_INCLUDE_BOARD_H */
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/* SAI2 pinset */
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#if defined(CONFIG_STM32F7_SAI2) && defined(CONFIG_STM32F7_SAI2_A)
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#define GPIO_SAI2_SD_A GPIO_SAI2_SD_A_2
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#define GPIO_SAI2_FS_A GPIO_SAI2_FS_A_2
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#define GPIO_SAI2_SCK_A GPIO_SAI2_SCK_A_2
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#define GPIO_SAI2_MCLK_A GPIO_SAI2_MCLK_A_2
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#define GPIO_SAI2_SD_B GPIO_SAI2_SD_B_4
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#define DMACHAN_SAI2_A DMAMAP_SAI2_A
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#define DMACHAN_SAI2_B DMAMAP_SAI2_B
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#else
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#define GPIO_SAI1_SD_B GPIO_SAI1_SD_B_1
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#define DMACHAN_SAI1_B DMAMAP_SAI1_B
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#endif
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#endif
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@@ -1,7 +1,7 @@
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############################################################################
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# boards/arm/stm32f7/stm32f746g-disco/src/Makefile
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||||
#
|
||||
# Copyright (C) 2015 Gregory Nutt. All rights reserved.
|
||||
# Copyright (C) 2019 Gregory Nutt. All rights reserved.
|
||||
# Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
#
|
||||
# Redistribution and use in source and binary forms, with or without
|
||||
@@ -83,4 +83,8 @@ ifeq ($(CONFIG_STM32F7_SDMMC), y)
|
||||
CSRCS += stm32_sdmmc.c
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_AUDIO_WM8994), y)
|
||||
CSRCS += stm32_wm8994.c
|
||||
endif
|
||||
|
||||
include $(TOPDIR)/boards/Board.mk
|
||||
|
||||
@@ -154,6 +154,14 @@ int stm32_bringup(void)
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_AUDIO_WM8994
|
||||
ret = stm32_wm8994_initialize(0);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "ERROR: stm32_wm8994_initialize failed: %d\n", ret);
|
||||
}
|
||||
#endif
|
||||
|
||||
UNUSED(ret); /* May not be used */
|
||||
return OK;
|
||||
}
|
||||
|
||||
@@ -0,0 +1,216 @@
|
||||
/****************************************************************************
|
||||
* boards/arm/stm32f7/stm32f746g-disco/src/stm32_wm8994.c
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <stdio.h>
|
||||
#include <debug.h>
|
||||
#include <assert.h>
|
||||
#include <errno.h>
|
||||
|
||||
#include <nuttx/irq.h>
|
||||
#include <nuttx/i2c/i2c_master.h>
|
||||
#include <nuttx/audio/i2s.h>
|
||||
#include <nuttx/audio/wm8994.h>
|
||||
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "stm32f746g-disco.h"
|
||||
#include "stm32_i2c.h"
|
||||
#include "stm32_sai.h"
|
||||
|
||||
#define HAVE_WM8994
|
||||
#define WM8994_I2C_ADDRESS (0x34 >> 1)
|
||||
#define WM8994_I2C_BUS 3
|
||||
#define WM8994_SAI_BUS 2
|
||||
|
||||
#ifdef HAVE_WM8994
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
struct stm32_mwinfo_s
|
||||
{
|
||||
/* Standard ADAU1961 interface */
|
||||
|
||||
struct wm8994_lower_s lower;
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
static int wm8994_attach(FAR const struct wm8994_lower_s *lower,
|
||||
wm8994_handler_t isr, FAR void *arg)
|
||||
{
|
||||
audinfo("TODO\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
static bool wm8994_enable(FAR const struct wm8994_lower_s *lower,
|
||||
bool enable)
|
||||
{
|
||||
audinfo("TODO\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
#if 0
|
||||
static void wm8994_hw_reset(FAR const struct wm8994_lower_s *lower)
|
||||
{
|
||||
audinfo("TODO\n");
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/* A reference to a structure of this type must be passed to the ADAU1961
|
||||
* driver. This structure provides information about the configuration
|
||||
* of the ADAU1961 and provides some board-specific hooks.
|
||||
*
|
||||
* Memory for this structure is provided by the caller. It is not copied
|
||||
* by the driver and is presumed to persist while the driver is active.
|
||||
*/
|
||||
|
||||
static struct stm32_mwinfo_s g_wm8994 =
|
||||
{
|
||||
.lower =
|
||||
{
|
||||
.address = WM8994_I2C_ADDRESS,
|
||||
.frequency = I2C_SPEED_FAST, /* 100 kHz */
|
||||
.mclk = 12000000, /* see MCO1 configuration */
|
||||
.attach = wm8994_attach,
|
||||
.enable = wm8994_enable,
|
||||
}
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: stm32_wm8994_initialize
|
||||
*
|
||||
* Description:
|
||||
* This function is called by platform-specific, setup logic to configure
|
||||
* and register the ADAU1961 device. This function will register the driver
|
||||
* as /dev/audio/pcm[x] where x is determined by the minor device number.
|
||||
*
|
||||
* Input Parameters:
|
||||
* minor - The input device minor number
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero is returned on success. Otherwise, a negated errno value is
|
||||
* returned to indicate the nature of the failure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int stm32_wm8994_initialize(int minor)
|
||||
{
|
||||
FAR struct audio_lowerhalf_s *wm8994;
|
||||
FAR struct i2c_master_s *i2c;
|
||||
FAR struct i2s_dev_s *i2s;
|
||||
static bool initialized = false;
|
||||
char devname[12];
|
||||
int ret;
|
||||
|
||||
audinfo("minor %d\n", minor);
|
||||
DEBUGASSERT(minor >= 0 && minor <= 25);
|
||||
|
||||
/* Initialize the CODEC if we have not already done so */
|
||||
|
||||
if (!initialized)
|
||||
{
|
||||
/* Configure MC01 to drive the master clock of the CODEC at 8MHz */
|
||||
|
||||
/* stm32_configgpio(GPIO_MCO1);
|
||||
* stm32_mco1config(RCC_CFGR_MCO1_HSE, RCC_CFGR_MCO1PRE_NONE);
|
||||
*/
|
||||
|
||||
/* Get an instance of the I2C interface for the CODEC */
|
||||
|
||||
i2c = stm32_i2cbus_initialize(WM8994_I2C_BUS);
|
||||
if (!i2c)
|
||||
{
|
||||
auderr("stm32_i2cbus_initialize failed\n");
|
||||
ret = -ENODEV;
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* Get an instance of the I2S interface for the CODEC data streams */
|
||||
|
||||
i2s = stm32_sai_initialize(WM8994_SAI_BUS);
|
||||
if (!i2s)
|
||||
{
|
||||
auderr("stm32_sai_initialize failed\n");
|
||||
ret = -ENODEV;
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* Now we can use these I2C and I2S interfaces to initialize the
|
||||
* CODEC which will return an audio interface.
|
||||
*/
|
||||
|
||||
wm8994 = wm8994_initialize(i2c, i2s, &g_wm8994.lower);
|
||||
if (!wm8994)
|
||||
{
|
||||
auderr("wm8994_initialize failed\n");
|
||||
ret = -ENODEV;
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* Create a device name */
|
||||
|
||||
snprintf(devname, 12, "pcm%d", minor);
|
||||
#if 0
|
||||
/* Finally, we can register the ADAU1961/I2C/I2S audio device. */
|
||||
|
||||
ret = audio_register(devname, wm8994);
|
||||
if (ret < 0)
|
||||
{
|
||||
auderr("failed to register /dev/%s device: %d\n", devname, ret);
|
||||
goto error;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
/* Now we are initialized */
|
||||
|
||||
initialized = true;
|
||||
}
|
||||
|
||||
return OK;
|
||||
|
||||
/* Error exits. Unfortunately there is no mechanism in place now to
|
||||
* recover resources from most errors on initialization failures.
|
||||
*/
|
||||
|
||||
error:
|
||||
return ret;
|
||||
}
|
||||
|
||||
#endif /* HAVE_WM8994 */
|
||||
@@ -1,4 +1,4 @@
|
||||
/****************************************************************************
|
||||
/*******************************************************************************
|
||||
* boards/arm/stm32f7/stm32f746g-disco/src/stm32f746g-disco.h
|
||||
*
|
||||
* Copyright (C) 2015, 2017 Gregory Nutt. All rights reserved.
|
||||
@@ -31,22 +31,22 @@
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
****************************************************************************/
|
||||
*******************************************************************************/
|
||||
|
||||
#ifndef __BOARDS_ARM_STM32F7_STM32F746G_DISCO_SRC_STM32F746G_DISCO__H
|
||||
#define __BOARDS_ARM_STM32F7_STM32F746G_DISCO_SRC_STM32F746G_DISCO__H
|
||||
|
||||
/****************************************************************************
|
||||
/*******************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
*******************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <nuttx/compiler.h>
|
||||
#include <stdint.h>
|
||||
|
||||
/****************************************************************************
|
||||
/*******************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
*******************************************************************************/
|
||||
|
||||
/* procfs File System */
|
||||
|
||||
@@ -64,7 +64,7 @@
|
||||
#undef HAVE_SDIO
|
||||
#endif
|
||||
|
||||
/* STM32F736G Discovery GPIOs ***********************************************/
|
||||
/* STM32F736G Discovery GPIOs */
|
||||
|
||||
/* The STM32F746G-DISCO board has numerous LEDs but only one,
|
||||
* LD1 located near the reset button, that can be controlled by software
|
||||
@@ -120,17 +120,13 @@
|
||||
#define SDIO_SLOTNO 0
|
||||
#define SDIO_MINOR 0
|
||||
|
||||
/****************************************************************************
|
||||
/*******************************************************************************
|
||||
* Public data
|
||||
****************************************************************************/
|
||||
*******************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
/*******************************************************************************
|
||||
* Name: stm32_bringup
|
||||
*
|
||||
* Description:
|
||||
@@ -142,70 +138,72 @@
|
||||
* CONFIG_BOARD_LATE_INITIALIZE=n && CONFIG_LIB_BOARDCTL=y :
|
||||
* Called from the NSH library
|
||||
*
|
||||
****************************************************************************/
|
||||
*******************************************************************************/
|
||||
|
||||
int stm32_bringup(void);
|
||||
|
||||
/****************************************************************************
|
||||
/*******************************************************************************
|
||||
* Name: stm32_adc_setup
|
||||
*
|
||||
* Description:
|
||||
* Initialize ADC and register the ADC driver.
|
||||
*
|
||||
****************************************************************************/
|
||||
*******************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ADC
|
||||
int stm32_adc_setup(void);
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
/*******************************************************************************
|
||||
* Name: stm32_spidev_initialize
|
||||
*
|
||||
* Description:
|
||||
* Called to configure SPI chip select GPIO pins for the stm32f746g-disco board.
|
||||
* Called to configure SPI chip select GPIO pins for the
|
||||
* stm32f746g-disco board.
|
||||
*
|
||||
****************************************************************************/
|
||||
*******************************************************************************/
|
||||
|
||||
void weak_function stm32_spidev_initialize(void);
|
||||
|
||||
/****************************************************************************
|
||||
/*******************************************************************************
|
||||
* Name: arch_sporadic_initialize
|
||||
*
|
||||
* Description:
|
||||
* This configuration has been used for evaluating the NuttX sporadic scheduler.
|
||||
* This configuration has been used for evaluating the NuttX sporadic
|
||||
* scheduler.
|
||||
*
|
||||
****************************************************************************/
|
||||
*******************************************************************************/
|
||||
|
||||
#ifdef CONFIG_SPORADIC_INSTRUMENTATION
|
||||
void arch_sporadic_initialize(void);
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
/*******************************************************************************
|
||||
|
||||
* Name: stm32_enablefmc
|
||||
*
|
||||
* Description:
|
||||
* enable clocking to the FMC module
|
||||
*
|
||||
****************************************************************************/
|
||||
*******************************************************************************/
|
||||
|
||||
#ifdef CONFIG_STM32F7_FMC
|
||||
void stm32_enablefmc(void);
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
/*******************************************************************************
|
||||
* Name: stm32_disablefmc
|
||||
*
|
||||
* Description:
|
||||
* disable clocking to the FMC module
|
||||
*
|
||||
****************************************************************************/
|
||||
*******************************************************************************/
|
||||
|
||||
#ifdef CONFIG_STM32F7_FMC
|
||||
void stm32_disablefmc(void);
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
/*******************************************************************************
|
||||
* Name: stm32_tsc_setup
|
||||
*
|
||||
* Description:
|
||||
@@ -220,7 +218,7 @@ void stm32_disablefmc(void);
|
||||
* Zero is returned on success. Otherwise, a negated errno value is
|
||||
* returned to indicate the nature of the failure.
|
||||
*
|
||||
****************************************************************************/
|
||||
*******************************************************************************/
|
||||
|
||||
#ifdef CONFIG_INPUT_FT5X06
|
||||
int stm32_tsc_setup(int minor);
|
||||
@@ -234,6 +232,10 @@ int stm32_n25qxxx_setup(void);
|
||||
int stm32_sdio_initialize(void);
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_AUDIO_WM8994
|
||||
int stm32_wm8994_initialize(int minor);
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
|
||||
#endif /* __BOARDS_ARM_STM32F7_STM32F746G_DISCO_SRC_STM32F746G_DISCO_H */
|
||||
|
||||
@@ -234,6 +234,67 @@ config WM8776_SWAP_HPOUT
|
||||
|
||||
endif # AUDIO_WM8776
|
||||
|
||||
config AUDIO_WM8994
|
||||
bool "WM8994 audio chip"
|
||||
default n
|
||||
depends on AUDIO
|
||||
---help---
|
||||
Select to enable support for the WM8994 Audio codec by Wolfson
|
||||
Microelectonics. This chip is a lower level audio chip.. basically
|
||||
an exotic D-to-A. It includes no built-in support for audio CODECS
|
||||
The WM8994 provides:
|
||||
|
||||
- Low power consumption
|
||||
- High SNR
|
||||
- Stereo digital microphone input
|
||||
- Digital Dynamic Range Controller (compressor / limiter)
|
||||
- Digital sidetone mixing
|
||||
- Ground-referenced headphone driver
|
||||
- Ground-referenced line outputs
|
||||
|
||||
NOTE: This driver also depends on both I2C and I2S support although
|
||||
that dependency is not explicit here.
|
||||
|
||||
if AUDIO_WM8994
|
||||
|
||||
config WM8994_INITVOLUME
|
||||
int "WM8994 initial volume setting"
|
||||
default 250
|
||||
|
||||
config WM8994_INFLIGHT
|
||||
int "WM8994 maximum in-flight audio buffers"
|
||||
default 2
|
||||
|
||||
config WM8994_MSG_PRIO
|
||||
int "WM8994 message priority"
|
||||
default 1
|
||||
|
||||
config WM8994_BUFFER_SIZE
|
||||
int "WM8994 preferred buffer size"
|
||||
default 8192
|
||||
|
||||
config WM8994_NUM_BUFFERS
|
||||
int "WM8994 preferred number of buffers"
|
||||
default 4
|
||||
|
||||
config WM8994_WORKER_STACKSIZE
|
||||
int "WM8994 worker thread stack size"
|
||||
default 768
|
||||
|
||||
config WM8994_REGDUMP
|
||||
bool "WM8994 register dump"
|
||||
default n
|
||||
---help---
|
||||
Enable logic to dump the contents of all WM8994 registers.
|
||||
|
||||
config WM8994_CLKDEBUG
|
||||
bool "WM8994 clock analysis"
|
||||
default n
|
||||
---help---
|
||||
Enable logic to analyze WM8994 clock configuation.
|
||||
|
||||
endif # AUDIO_WM8994
|
||||
|
||||
config AUDIO_WM8904
|
||||
bool "WM8904 audio chip"
|
||||
default n
|
||||
|
||||
@@ -65,6 +65,17 @@ ifeq ($(CONFIG_AUDIO_CS4344),y)
|
||||
CSRCS += cs4344.c
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_AUDIO_WM8994),y)
|
||||
CSRCS += wm8994.c
|
||||
ifeq ($(CONFIG_WM8994_REGDUMP),y)
|
||||
CSRCS += wm8994_debug.c
|
||||
else
|
||||
ifeq ($(CONFIG_WM8994_CLKDEBUG),y)
|
||||
CSRCS += wm8994_debug.c
|
||||
endif
|
||||
endif
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_AUDIO_WM8904),y)
|
||||
CSRCS += wm8904.c
|
||||
ifeq ($(CONFIG_WM8904_REGDUMP),y)
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,260 @@
|
||||
/****************************************************************************
|
||||
* include/nuttx/audio/wm8994.h
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __INCLUDE_NUTTX_AUDIO_WM8994_H
|
||||
#define __INCLUDE_NUTTX_AUDIO_WM8994_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
|
||||
#include <nuttx/irq.h>
|
||||
|
||||
#ifdef CONFIG_AUDIO_WM8994
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* Configuration ************************************************************
|
||||
*
|
||||
* CONFIG_AUDIO_WM8994 - Enables WM8994 support
|
||||
* CONFIG_WM8994_INITVOLUME - The initial volume level in the range {0..1000}
|
||||
* CONFIG_WM8994_INFLIGHT - Maximum number of buffers that the WM8994 driver
|
||||
* will send to the I2S driver before any have completed.
|
||||
* CONFIG_WM8994_MSG_PRIO - Priority of messages sent to the WM8994 worker
|
||||
* thread.
|
||||
* CONFIG_WM8994_BUFFER_SIZE - Preferred buffer size
|
||||
* CONFIG_WM8994_NUM_BUFFERS - Preferred number of buffers
|
||||
* CONFIG_WM8994_WORKER_STACKSIZE - Stack size to use when creating the
|
||||
* WM8994 worker thread.
|
||||
* CONFIG_WM8994_REGDUMP - Enable logic to dump all WM8994 registers to
|
||||
* the SYSLOG device.
|
||||
*/
|
||||
|
||||
/* Pre-requisites */
|
||||
|
||||
#ifndef CONFIG_AUDIO
|
||||
# error CONFIG_AUDIO is required for audio subsystem support
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_I2S
|
||||
# error CONFIG_I2S is required by the WM8994 driver
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_I2C
|
||||
# error CONFIG_I2C is required by the WM8994 driver
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_SCHED_WORKQUEUE
|
||||
# error CONFIG_SCHED_WORKQUEUE is required by the WM8994 driver
|
||||
#endif
|
||||
|
||||
/* Default configuration values */
|
||||
|
||||
#ifndef CONFIG_WM8994_INITVOLUME
|
||||
# define CONFIG_WM8994_INITVOLUME 250
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_WM8994_INFLIGHT
|
||||
# define CONFIG_WM8994_INFLIGHT 2
|
||||
#endif
|
||||
|
||||
#if CONFIG_WM8994_INFLIGHT > 255
|
||||
# error CONFIG_WM8994_INFLIGHT must fit in a uint8_t
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_WM8994_MSG_PRIO
|
||||
# define CONFIG_WM8994_MSG_PRIO 1
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_WM8994_BUFFER_SIZE
|
||||
# define CONFIG_WM8994_BUFFER_SIZE 8192
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_WM8994_NUM_BUFFERS
|
||||
# define CONFIG_WM8994_NUM_BUFFERS 4
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_WM8994_WORKER_STACKSIZE
|
||||
# define CONFIG_WM8994_WORKER_STACKSIZE 768
|
||||
#endif
|
||||
|
||||
/* Helper macros ************************************************************/
|
||||
|
||||
#define WM8994_ATTACH(s,isr,arg) ((s)->attach(s,isr,arg))
|
||||
#define WM8994_DETACH(s) ((s)->attach(s,NULL,NULL))
|
||||
#define WM8994_ENABLE(s) ((s)->enable(s,true))
|
||||
#define WM8994_DISABLE(s) ((s)->enable(s,false))
|
||||
#define WM8994_RESTORE(s,e) ((s)->enable(s,e))
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
/* This is the type of the WM8994 interrupt handler. The lower level code
|
||||
* will intercept the interrupt and provide the upper level with the private
|
||||
* data that was provided when the interrupt was attached.
|
||||
*/
|
||||
|
||||
struct wm8994_lower_s; /* Forward reference. Defined below */
|
||||
|
||||
typedef CODE int (*wm8994_handler_t)(FAR const struct wm8994_lower_s *lower,
|
||||
FAR void *arg);
|
||||
|
||||
/* A reference to a structure of this type must be passed to the WM8994
|
||||
* driver. This structure provides information about the configuration
|
||||
* of the WM8994 and provides some board-specific hooks.
|
||||
*
|
||||
* Memory for this structure is provided by the caller. It is not copied
|
||||
* by the driver and is presumed to persist while the driver is active.
|
||||
*/
|
||||
|
||||
struct wm8994_lower_s
|
||||
{
|
||||
/* I2C characterization */
|
||||
|
||||
uint32_t frequency; /* Initial I2C frequency */
|
||||
uint8_t address; /* 7-bit I2C address (only bits 0-6 used) */
|
||||
|
||||
/* Clocking is provided via MCLK. The WM8994 driver will need to know
|
||||
* the frequency of MCLK in order to generate the correct bitrates.
|
||||
*/
|
||||
|
||||
uint32_t mclk; /* W8994 Master clock frequency */
|
||||
|
||||
/* IRQ/GPIO access callbacks. These operations all hidden behind
|
||||
* callbacks to isolate the WM8994 driver from differences in GPIO
|
||||
* interrupt handling by varying boards and MCUs. If possible,
|
||||
* interrupts should be configured on both rising and falling edges
|
||||
* so that contact and loss-of-contact events can be detected.
|
||||
*
|
||||
* attach - Attach or detach the WM8994 interrupt handler to the GPIO
|
||||
* interrupt
|
||||
* enable - Enable or disable the GPIO interrupt. Returns the
|
||||
* previous interrupt state.
|
||||
*/
|
||||
|
||||
CODE int (*attach)(FAR const struct wm8994_lower_s *lower,
|
||||
wm8994_handler_t isr, FAR void *arg);
|
||||
CODE bool (*enable)(FAR const struct wm8994_lower_s *lower, bool enable);
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef __cplusplus
|
||||
#define EXTERN extern "C"
|
||||
extern "C"
|
||||
{
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: wm8994_initialize
|
||||
*
|
||||
* Description:
|
||||
* Initialize the WM8994 device.
|
||||
*
|
||||
* Input Parameters:
|
||||
* i2c - An I2C driver instance
|
||||
* i2s - An I2S driver instance
|
||||
* lower - Persistent board configuration data
|
||||
*
|
||||
* Returned Value:
|
||||
* A new lower half audio interface for the WM8994 device is returned on
|
||||
* success; NULL is returned on failure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
struct i2c_master_s; /* Forward reference. Defined in include/nuttx/i2c/i2c_master.h */
|
||||
struct i2s_dev_s; /* Forward reference. Defined in include/nuttx/audio/i2s.h */
|
||||
struct audio_lowerhalf_s; /* Forward reference. Defined in nuttx/audio/audio.h */
|
||||
|
||||
FAR struct audio_lowerhalf_s *
|
||||
wm8994_initialize(FAR struct i2c_master_s *i2c, FAR struct i2s_dev_s *i2s,
|
||||
FAR const struct wm8994_lower_s *lower);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: wm8994_dump_registers
|
||||
*
|
||||
* Description:
|
||||
* Dump the contents of all WM8994 registers to the syslog device
|
||||
*
|
||||
* Input Parameters:
|
||||
* dev - The device instance returned by wm8994_initialize
|
||||
*
|
||||
* Returned Value:
|
||||
* None.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_WM8994_REGDUMP
|
||||
void wm8994_dump_registers(FAR struct audio_lowerhalf_s *dev,
|
||||
FAR const char *msg);
|
||||
#else
|
||||
/* This eliminates the need for any conditional compilation in the
|
||||
* including file.
|
||||
*/
|
||||
|
||||
# define wm8994_dump_registers(d,m)
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: wm8994_clock_analysis
|
||||
*
|
||||
* Description:
|
||||
* Analyze the settings in the clock chain and dump to syslog.
|
||||
*
|
||||
* Input Parameters:
|
||||
* dev - The device instance returned by wm8994_initialize
|
||||
*
|
||||
* Returned Value:
|
||||
* None.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_WM8994_CLKDEBUG
|
||||
void wm8994_clock_analysis(FAR struct audio_lowerhalf_s *dev,
|
||||
FAR const char *msg);
|
||||
#else
|
||||
/* This eliminates the need for any conditional compilation in the
|
||||
* including file.
|
||||
*/
|
||||
|
||||
# define wm8994_clock_analysis(d,m)
|
||||
#endif
|
||||
|
||||
#undef EXTERN
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* CONFIG_AUDIO_WM8994 */
|
||||
#endif /* __INCLUDE_NUTTX_AUDIO_WM8994_H */
|
||||
Reference in New Issue
Block a user