diff options
Diffstat (limited to 'src/lpc/lpc.h')
| -rw-r--r-- | src/lpc/lpc.h | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/src/lpc/lpc.h b/src/lpc/lpc.h index 87af494a..81cd0cc8 100644 --- a/src/lpc/lpc.h +++ b/src/lpc/lpc.h @@ -720,4 +720,193 @@ struct lpc_usart { extern struct lpc_usart lpc_usart; +#define LPC_USART_IER_RBRINTEN 0 +#define LPC_USART_IER_THREINTEN 1 +#define LPC_USART_IER_RSLINTEN 2 +#define LPC_USART_IER_MSINTEN 3 +#define LPC_USART_IER_ABEOINTEN 8 +#define LPC_USART_IER_ABTOINTEN 9 + +#define LPC_USART_IIR_INTSTATUS 0 +#define LPC_USART_IIR_INTID 1 +#define LPC_USART_IIR_INTID_RLS 3 +#define LPC_USART_IIR_INTID_RDA 2 +#define LPC_USART_IIR_INTID_CTI 6 +#define LPC_USART_IIR_INTID_THRE 1 +#define LPC_USART_IIR_INTID_MS 0 +#define LPC_USART_IIR_INTID_MASK 7 +#define LPC_USART_IIR_FIFOEN 6 +#define LPC_USART_IIR_ABEOINT 8 +#define LPC_USART_IIR_ABTOINT 9 + +#define LPC_USART_FCR_FIFOEN 0 +#define LPC_USART_FCR_RXFIFORES 1 +#define LPC_USART_FCR_TXFIFORES 2 +#define LPC_USART_FCR_RXTL 6 +#define LPC_USART_FCR_RXTL_1 0 +#define LPC_USART_FCR_RXTL_4 1 +#define LPC_USART_FCR_RXTL_8 2 +#define LPC_USART_FCR_RXTL_14 3 + +#define LPC_USART_LCR_WLS 0 +#define LPC_USART_LCR_WLS_5 0 +#define LPC_USART_LCR_WLS_6 1 +#define LPC_USART_LCR_WLS_7 2 +#define LPC_USART_LCR_WLS_8 3 +#define LPC_USART_LCR_WLS_MASK 3 +#define LPC_USART_LCR_SBS 2 +#define LPC_USART_LCR_SBS_1 0 +#define LPC_USART_LCR_SBS_2 1 +#define LPC_USART_LCR_SBS_MASK 1 +#define LPC_USART_LCR_PE 3 +#define LPC_USART_LCR_PS 4 +#define LPC_USART_LCR_PS_ODD 0 +#define LPC_USART_LCR_PS_EVEN 1 +#define LPC_USART_LCR_PS_ONE 2 +#define LPC_USART_LCR_PS_ZERO 3 +#define LPC_USART_LCR_PS_MASK 3 +#define LPC_USART_LCR_BC 6 +#define LPC_USART_LCR_DLAB 7 + +#define LPC_USART_MCR_DTRCTRL 0 +#define LPC_USART_MCR_RTSCTRL 1 +#define LPC_USART_MCR_LMS 4 +#define LPC_USART_MCR_RTSEN 6 +#define LPC_USART_MCR_CTSEN 7 + +#define LPC_USART_LSR_RDR 0 +#define LPC_USART_LSR_OE 1 +#define LPC_USART_LSR_PE 2 +#define LPC_USART_LSR_FE 3 +#define LPC_USART_LSR_BI 4 +#define LPC_USART_LSR_THRE 5 +#define LPC_USART_LSR_TEMT 6 +#define LPC_USART_LSR_RXFE 7 +#define LPC_USART_LSR_TXERR 8 + +#define LPC_USART_MSR_DCTS 0 +#define LPC_USART_MSR_DDSR 1 +#define LPC_USART_MSR_TERI 2 +#define LPC_USART_MSR_DDCD 3 +#define LPC_USART_MSR_CTS 4 +#define LPC_USART_MSR_DSR 5 +#define LPC_USART_MSR_RI 6 +#define LPC_USART_MSR_DCD 7 + +#define LPC_USART_ACR_START 0 +#define LPC_USART_ACR_MODE 1 +#define LPC_USART_ACR_AUTORESTART 2 +#define LPC_USART_ACR_ABEOINTCLR 8 +#define LPC_USART_ACR_ABTOINTCLR 9 + +#define LPC_USART_FDR_DIVADDVAL 0 +#define LPC_USART_FDR_MULVAL 4 + +#define LPC_USART_OSR_OSFRAC 1 +#define LPC_USART_OSR_OSINT 4 +#define LPC_USART_OSR_FDINT 8 + +#define LPC_USART_TER_TXEN 7 + +#define LPC_USART_HDEN_HDEN 0 + +#define LPC_ISR_PIN_INT0_POS 0 +#define LPC_ISR_PIN_INT1_POS 1 +#define LPC_ISR_PIN_INT2_POS 2 +#define LPC_ISR_PIN_INT3_POS 3 +#define LPC_ISR_PIN_INT4_POS 4 +#define LPC_ISR_PIN_INT5_POS 5 +#define LPC_ISR_PIN_INT6_POS 6 +#define LPC_ISR_PIN_INT7_POS 7 +#define LPC_ISR_GINT0_POS 8 +#define LPC_ISR_GINT1_POS 9 +#define LPC_ISR_SSP1_POS 14 +#define LPC_ISR_I2C_POS 15 +#define LPC_ISR_CT16B0_POS 16 +#define LPC_ISR_CT16B1_POS 17 +#define LPC_ISR_CT32B0_POS 18 +#define LPC_ISR_CT32B1_POS 19 +#define LPC_ISR_SSP0_POS 20 +#define LPC_ISR_USART_POS 21 +#define LPC_ISR_USB_IRQ_POS 22 +#define LPC_ISR_USB_FIQ_POS 23 +#define LPC_ISR_ADC_POS 24 +#define LPC_ISR_WWDT_POS 25 +#define LPC_ISR_BOD_POS 26 +#define LPC_ISR_FLASH_POS 27 +#define LPC_ISR_USB_WAKEUP_POS 30 + +struct lpc_nvic { + vuint32_t iser; /* 0x000 0xe000e100 Set Enable Register */ + + uint8_t _unused020[0x080 - 0x004]; + + vuint32_t icer; /* 0x080 0xe000e180 Clear Enable Register */ + + uint8_t _unused0a0[0x100 - 0x084]; + + vuint32_t ispr; /* 0x100 0xe000e200 Set Pending Register */ + + uint8_t _unused120[0x180 - 0x104]; + + vuint32_t icpr; /* 0x180 0xe000e280 Clear Pending Register */ + + uint8_t _unused1a0[0x300 - 0x184]; + + vuint32_t ipr[8]; /* 0x300 0xe000e400 Priority Register */ +}; + +extern struct lpc_nvic lpc_nvic; + +static inline void +lpc_nvic_set_enable(int irq) { + lpc_nvic.iser |= (1 << irq); +} + +static inline void +lpc_nvic_clear_enable(int irq) { + lpc_nvic.icer |= (1 << irq); +} + +static inline int +lpc_nvic_enabled(int irq) { + return (lpc_nvic.iser >> irq) & 1; +} + + +static inline void +lpc_nvic_set_pending(int irq) { + lpc_nvic.ispr = (1 << irq); +} + +static inline void +lpc_nvic_clear_pending(int irq) { + lpc_nvic.icpr = (1 << irq); +} + +static inline int +lpc_nvic_pending(int irq) { + return (lpc_nvic.ispr >> irq) & 1; +} + +#define IRQ_PRIO_REG(irq) ((irq) >> 2) +#define IRQ_PRIO_BIT(irq) (((irq) & 3) << 3) +#define IRQ_PRIO_MASK(irq) (0xff << IRQ_PRIO_BIT(irq)) + +static inline void +lpc_nvic_set_priority(int irq, uint8_t prio) { + int n = IRQ_PRIO_REG(irq); + uint32_t v; + + v = lpc_nvic.ipr[n]; + v &= ~IRQ_PRIO_MASK(irq); + v |= (prio) << IRQ_PRIO_BIT(irq); + lpc_nvic.ipr[n] = v; +} + +static inline uint8_t +lpc_nvic_get_priority(int irq) { + return (lpc_nvic.ipr[IRQ_PRIO_REG(irq)] >> IRQ_PRIO_BIT(irq)) & IRQ_PRIO_MASK(0); +} + #endif /* _LPC_H_ */ |