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@ -19,36 +19,36 @@ extern "C" {
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#endif
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struct UartRegisterMap {
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volatile uint32_t dr; /* Offset: 0x000 TYPE: (RW) Data register */
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volatile uint32_t dr; /* Offset: 0x000 TYPE: (RW) Data register */
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union {
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volatile uint32_t rsr; /* Offset: 0x004 TYPE: (RO) Receive status register */
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volatile uint32_t ecr; /* Offset: 0x004 TYPE: (WO) Error clear register */
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volatile uint32_t rsr; /* Offset: 0x004 TYPE: (RO) Receive status register */
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volatile uint32_t ecr; /* Offset: 0x004 TYPE: (WO) Error clear register */
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};
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volatile uint32_t reserved0[4]; /* Offset: 0x008-0x014 Reserved */
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volatile uint32_t fr; /* Offset: 0x018 TYPE: (RO) Flag register */
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volatile uint32_t reserved1; /* Offset: 0x01C Reserved */
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volatile uint32_t ilpr; /* Offset: 0x020 TYPE: (RW) IrDA low-power counter register */
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volatile uint32_t ibrd; /* Offset: 0x024 TYPE: (RW) Integer baud rate register */
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volatile uint32_t fbrd; /* Offset: 0x028 TYPE: (RW) Fractional baud rate register */
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volatile uint32_t lcr; /* Offset: 0x02C TYPE: (RW) Line control register */
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volatile uint32_t cr; /* Offset: 0x030 TYPE: (RW) Control register */
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volatile uint32_t ifls; /* Offset: 0x034 TYPE: (RW) Interrupt FIFO level select register */
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volatile uint32_t imsc; /* Offset: 0x038 TYPE: (RW) Interrupt mask set/clear register */
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volatile uint32_t ris; /* Offset: 0x03C TYPE: (RO) Raw interrupt status register */
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volatile uint32_t mis; /* Offset: 0x040 TYPE: (RO) Masked interrupt status register */
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volatile uint32_t icr; /* Offset: 0x044 TYPE: (WO) Interrupt clear register */
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volatile uint32_t dmacr; /* Offset: 0x048 TYPE: (RW) DMA control register */
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volatile uint32_t reserved0[4]; /* Offset: 0x008-0x014 Reserved */
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volatile uint32_t fr; /* Offset: 0x018 TYPE: (RO) Flag register */
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volatile uint32_t reserved1; /* Offset: 0x01C Reserved */
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volatile uint32_t ilpr; /* Offset: 0x020 TYPE: (RW) IrDA low-power counter register */
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volatile uint32_t ibrd; /* Offset: 0x024 TYPE: (RW) Integer baud rate register */
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volatile uint32_t fbrd; /* Offset: 0x028 TYPE: (RW) Fractional baud rate register */
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volatile uint32_t lcr; /* Offset: 0x02C TYPE: (RW) Line control register */
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volatile uint32_t cr; /* Offset: 0x030 TYPE: (RW) Control register */
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volatile uint32_t ifls; /* Offset: 0x034 TYPE: (RW) Interrupt FIFO level select register */
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volatile uint32_t imsc; /* Offset: 0x038 TYPE: (RW) Interrupt mask set/clear register */
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volatile uint32_t ris; /* Offset: 0x03C TYPE: (RO) Raw interrupt status register */
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volatile uint32_t mis; /* Offset: 0x040 TYPE: (RO) Masked interrupt status register */
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volatile uint32_t icr; /* Offset: 0x044 TYPE: (WO) Interrupt clear register */
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volatile uint32_t dmacr; /* Offset: 0x048 TYPE: (RW) DMA control register */
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};
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struct UartResource {
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uint32_t num; /* UART port num */
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uint32_t base; /* UART PL011 base address */
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uint32_t irqNum; /* UART PL011 IRQ num */
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uint32_t baudrate; /* Default baudrate */
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uint32_t wlen; /* Default word length */
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uint32_t parity; /* Default parity */
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uint32_t stopBit; /* Default stop bits */
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uint32_t uartClk; /* UART clock */
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uint32_t num; /* UART port num */
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uint32_t base; /* UART PL011 base address */
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uint32_t irqNum; /* UART PL011 IRQ num */
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uint32_t baudrate; /* Default baudrate */
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uint32_t wlen; /* Default word length */
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uint32_t parity; /* Default parity */
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uint32_t stopBit; /* Default stop bits */
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uint32_t uartClk; /* UART clock */
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unsigned long physBase;
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};
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@ -60,126 +60,115 @@ enum UartDeviceState {
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struct UartDevice {
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struct IDeviceIoService ioService;
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struct UartResource resource;
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enum UartDeviceState state; /* UART State */
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uint32_t uartClk; /* UART clock */
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uint32_t baudrate; /* Baudrate */
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enum UartDeviceState state; /* UART State */
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uint32_t uartClk; /* UART clock */
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uint32_t baudrate; /* Baudrate */
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struct BufferFifo rxFifo;
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};
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/* Receive Status Register/Error Clear Register data */
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#define UART_PL011_RSR_FRAMING_ERROR_MASK (1 << 0x0u) /* Framing error bit mask */
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#define UART_PL011_RSR_PARITY_ERROR_MASK (1 << 0x1u) /* Parity error bit mask */
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#define UART_PL011_RSR_BREAK_ERROR_MASK (1 << 0x2u) /* Break error bit mask */
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#define UART_PL011_RSR_OVERRUN_ERROR_MASK (1 << 0x3u) /* Overrun error bit mask */
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#define UART_PL011_RSR_FRAMING_ERROR_MASK (1 << 0x0u) /* Framing error bit mask */
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#define UART_PL011_RSR_PARITY_ERROR_MASK (1 << 0x1u) /* Parity error bit mask */
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#define UART_PL011_RSR_BREAK_ERROR_MASK (1 << 0x2u) /* Break error bit mask */
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#define UART_PL011_RSR_OVERRUN_ERROR_MASK (1 << 0x3u) /* Overrun error bit mask */
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/* Receive Status Register Error Mask */
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#define UART_PL011_RSR_RX_ERROR_MASK ( \
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UART_PL011_RSR_FRAMING_ERROR_MASK \
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| UART_PL011_RSR_PARITY_ERROR_MASK \
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| UART_PL011_RSR_BREAK_ERROR_MASK \
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| UART_PL011_RSR_OVERRUN_ERROR_MASK)
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#define UART_PL011_RSR_RX_ERROR_MASK \
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(UART_PL011_RSR_FRAMING_ERROR_MASK | UART_PL011_RSR_PARITY_ERROR_MASK | UART_PL011_RSR_BREAK_ERROR_MASK | \
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UART_PL011_RSR_OVERRUN_ERROR_MASK)
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#define UART_PL011_FR_CTS_MASK (1 << 0x0u) /* Clear to send bit mask */
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#define UART_PL011_FR_DSR_MASK (1 << 0x1u) /* Data set ready bit mask */
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#define UART_PL011_FR_DCD_MASK (1 << 0x2u) /* Data carrier detect bit mask */
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#define UART_PL011_FR_BUSY_MASK (1 << 0x3u) /* UART busy bit mask */
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#define UART_PL011_FR_RX_FIFO_EMPTY_MASK (1 << 0x4u) /* Receive FIFO empty bit mask */
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#define UART_PL011_FR_TX_FIFO_FULL_MASK (1 << 0x5u) /* Transmit FIFO full bit mask */
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#define UART_PL011_FR_RX_FIFO_FULL_MASK (1 << 0x6u) /* Receive FIFO full bit mask */
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#define UART_PL011_FR_TX_FIFO_EMPTY_MASK (1 << 0x7u) /* Transmit FIFO empty. bit mask */
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#define UART_PL011_FR_RI_MASK (1 << 0x8u) /* Ring indicator bit mask */
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#define UART_PL011_FR_CTS_MASK (1 << 0x0u) /* Clear to send bit mask */
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#define UART_PL011_FR_DSR_MASK (1 << 0x1u) /* Data set ready bit mask */
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#define UART_PL011_FR_DCD_MASK (1 << 0x2u) /* Data carrier detect bit mask */
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#define UART_PL011_FR_BUSY_MASK (1 << 0x3u) /* UART busy bit mask */
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#define UART_PL011_FR_RX_FIFO_EMPTY_MASK (1 << 0x4u) /* Receive FIFO empty bit mask */
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#define UART_PL011_FR_TX_FIFO_FULL_MASK (1 << 0x5u) /* Transmit FIFO full bit mask */
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#define UART_PL011_FR_RX_FIFO_FULL_MASK (1 << 0x6u) /* Receive FIFO full bit mask */
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#define UART_PL011_FR_TX_FIFO_EMPTY_MASK (1 << 0x7u) /* Transmit FIFO empty. bit mask */
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#define UART_PL011_FR_RI_MASK (1 << 0x8u) /* Ring indicator bit mask */
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/* PL011 Line Control Register Data bits */
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#define UART_PL011_LCR_H_BRK_MASK (1 << 0x0u) /* Send Break bit mask */
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#define UART_PL011_LCR_H_PEN_MASK (1 << 0x1u) /* Parity enable bit mask */
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#define UART_PL011_LCR_H_EPS_MASK (1 << 0x2u) /* Even parity select bit mask . */
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#define UART_PL011_LCR_H_FEN_MASK (1 << 0x4u) /* Enable FIFOs bit mask */
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#define UART_PL011_LCR_H_SPS_MASK (1 << 0x7u) /* Stick parity select bit mask */
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#define UART_PL011_LCR_H_BRK_MASK (1 << 0x0u) /* Send Break bit mask */
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#define UART_PL011_LCR_H_PEN_MASK (1 << 0x1u) /* Parity enable bit mask */
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#define UART_PL011_LCR_H_EPS_MASK (1 << 0x2u) /* Even parity select bit mask . */
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#define UART_PL011_LCR_H_FEN_MASK (1 << 0x4u) /* Enable FIFOs bit mask */
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#define UART_PL011_LCR_H_SPS_MASK (1 << 0x7u) /* Stick parity select bit mask */
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#define UART_PL011_LCR_H_WLEN_BIT_OFFSET 0x5u /* Word length bit offset */
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#define UART_PL011_LCR_H_WLEN_MASK ( \
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0x3u << UART_PL011_LCR_H_WLEN_BIT_OFFSET)
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#define UART_PL011_LCR_H_WLEN_BIT_OFFSET 0x5u /* Word length bit offset */
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#define UART_PL011_LCR_H_WLEN_MASK (0x3u << UART_PL011_LCR_H_WLEN_BIT_OFFSET)
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#define UART_PL011_WLEN_5BITS (0x0u << UART_PL011_LCR_H_WLEN_BIT_OFFSET)
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#define UART_PL011_WLEN_6BITS (0x1u << UART_PL011_LCR_H_WLEN_BIT_OFFSET)
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#define UART_PL011_WLEN_7BITS (0x2u << UART_PL011_LCR_H_WLEN_BIT_OFFSET)
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#define UART_PL011_WLEN_8BITS (0x3u << UART_PL011_LCR_H_WLEN_BIT_OFFSET)
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#define UART_PL011_WLEN_5BITS (0x0u << UART_PL011_LCR_H_WLEN_BIT_OFFSET)
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#define UART_PL011_WLEN_6BITS (0x1u << UART_PL011_LCR_H_WLEN_BIT_OFFSET)
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#define UART_PL011_WLEN_7BITS (0x2u << UART_PL011_LCR_H_WLEN_BIT_OFFSET)
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#define UART_PL011_WLEN_8BITS (0x3u << UART_PL011_LCR_H_WLEN_BIT_OFFSET)
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#define UART_PL011_NONE_PARITY_CHECKED 0
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#define UART_PL011_NONE_PARITY_CHECKED 0
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#define UART_PL011_LCR_H_STP2_BIT_OFFSET 0x3u /* Two stop bits select */
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#define UART_PL011_LCR_H_STP2_BIT_OFFSET 0x3u /* Two stop bits select */
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#define UART_PL011_STOPBIT_1 (0x0u << UART_PL011_LCR_H_STP2_BIT_OFFSET)
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#define UART_PL011_STOPBIT_2 (0x1u << UART_PL011_LCR_H_STP2_BIT_OFFSET)
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#define UART_PL011_STOPBIT_1 (0x0u << UART_PL011_LCR_H_STP2_BIT_OFFSET)
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#define UART_PL011_STOPBIT_2 (0x1u << UART_PL011_LCR_H_STP2_BIT_OFFSET)
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#define UART_PL011_LCR_H_PARITY_MASK ( \
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UART_PL011_LCR_H_PEN_MASK \
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| UART_PL011_LCR_H_EPS_MASK \
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| UART_PL011_LCR_H_SPS_MASK)
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#define UART_PL011_LCR_H_PARITY_MASK (UART_PL011_LCR_H_PEN_MASK | UART_PL011_LCR_H_EPS_MASK | UART_PL011_LCR_H_SPS_MASK)
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#define UART_PL011_LCR_H_STOPBIT_MASK (0x1u << UART_PL011_LCR_H_STP2_BIT_OFFSET)
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#define UART_PL011_LCR_H_STOPBIT_MASK (0x1u << UART_PL011_LCR_H_STP2_BIT_OFFSET)
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#define UART_PL011_DATA_FORMAT_MASK ( \
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UART_PL011_LCR_H_PARITY_MASK \
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| UART_PL011_LCR_H_STOPBIT_MASK \
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| UART_PL011_LCR_H_WLEN_MASK)
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#define UART_PL011_DATA_FORMAT_MASK \
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(UART_PL011_LCR_H_PARITY_MASK | UART_PL011_LCR_H_STOPBIT_MASK | UART_PL011_LCR_H_WLEN_MASK)
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/* Control Register */
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#define UART_PL011_CR_UARTEN_MASK (0x1u << 0x0u) /* Uart enable bit mask */
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#define UART_PL011_CR_SIREN_MASK (0x1u << 0x1u) /* Sir enable bit mask */
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#define UART_PL011_CR_SIRLP_MASK (0x1u << 0x2u) /* SIR low-power IrDA mode bit mask */
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#define UART_PL011_CR_LBE_MASK (0x1u << 0x7u) /* Loopback enable bit mask */
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#define UART_PL011_CR_TXE_MASK (0x1u << 0x8u) /* Transmit enable bit mask */
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#define UART_PL011_CR_RXE_MASK (0x1u << 0x9u) /* Receive enable bit mask */
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#define UART_PL011_CR_DTR_MASK (0x1u << 0xAu) /* Data transmit ready.bit mask */
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#define UART_PL011_CR_RTS_MASK (0x1u << 0xBu) /* Request to send bit mask */
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#define UART_PL011_CR_OUT1_MASK (0x1u << 0xCu) /* Out1 bit field mask */
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#define UART_PL011_CR_OUT2_MASK (0x1u << 0xDu) /* Out2 bit field mask */
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#define UART_PL011_CR_RTSE_MASK (0x1u << 0xEu) /* RTS hardware flow control enable bit mask */
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#define UART_PL011_CR_CTSE_MASK (0x1u << 0xFu) /* CTS hardware flow control enable bit mask */
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#define UART_PL011_CR_UARTEN_MASK (0x1u << 0x0u) /* Uart enable bit mask */
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#define UART_PL011_CR_SIREN_MASK (0x1u << 0x1u) /* Sir enable bit mask */
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#define UART_PL011_CR_SIRLP_MASK (0x1u << 0x2u) /* SIR low-power IrDA mode bit mask */
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#define UART_PL011_CR_LBE_MASK (0x1u << 0x7u) /* Loopback enable bit mask */
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#define UART_PL011_CR_TXE_MASK (0x1u << 0x8u) /* Transmit enable bit mask */
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#define UART_PL011_CR_RXE_MASK (0x1u << 0x9u) /* Receive enable bit mask */
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#define UART_PL011_CR_DTR_MASK (0x1u << 0xAu) /* Data transmit ready.bit mask */
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#define UART_PL011_CR_RTS_MASK (0x1u << 0xBu) /* Request to send bit mask */
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#define UART_PL011_CR_OUT1_MASK (0x1u << 0xCu) /* Out1 bit field mask */
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#define UART_PL011_CR_OUT2_MASK (0x1u << 0xDu) /* Out2 bit field mask */
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#define UART_PL011_CR_RTSE_MASK (0x1u << 0xEu) /* RTS hardware flow control enable bit mask */
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#define UART_PL011_CR_CTSE_MASK (0x1u << 0xFu) /* CTS hardware flow control enable bit mask */
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/* Interrupt FIFO Level Select Register Transmit bit offset */
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#define UART_PL011_IFLS_TX_BIT_OFFSET 0x0u
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#define UART_PL011_IFLS_TX_BIT_OFFSET 0x0u
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/* Interrupt FIFO Level Select Register Receive bit offset */
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#define UART_PL011_IFLS_RX_BIT_OFFSET 0x3u
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#define UART_PL011_IFLS_RX_BIT_OFFSET 0x3u
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#define UART_PL011_RX_FIFO_LVL_1_8 (0x0u << UART_PL011_IFLS_RX_BIT_OFFSET)
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#define UART_PL011_RX_FIFO_LVL_1_4 (0x1u << UART_PL011_IFLS_RX_BIT_OFFSET)
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#define UART_PL011_RX_FIFO_LVL_1_2 (0x2u << UART_PL011_IFLS_RX_BIT_OFFSET)
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#define UART_PL011_RX_FIFO_LVL_3_4 (0x3u << UART_PL011_IFLS_RX_BIT_OFFSET)
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#define UART_PL011_RX_FIFO_LVL_7_8 (0x4u << UART_PL011_IFLS_RX_BIT_OFFSET)
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#define UART_PL011_RX_FIFO_LVL_1_8 (0x0u << UART_PL011_IFLS_RX_BIT_OFFSET)
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#define UART_PL011_RX_FIFO_LVL_1_4 (0x1u << UART_PL011_IFLS_RX_BIT_OFFSET)
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#define UART_PL011_RX_FIFO_LVL_1_2 (0x2u << UART_PL011_IFLS_RX_BIT_OFFSET)
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#define UART_PL011_RX_FIFO_LVL_3_4 (0x3u << UART_PL011_IFLS_RX_BIT_OFFSET)
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#define UART_PL011_RX_FIFO_LVL_7_8 (0x4u << UART_PL011_IFLS_RX_BIT_OFFSET)
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#define UART_PL011_TX_FIFO_LVL_1_8 (0x0u << UART_PL011_IFLS_TX_BIT_OFFSET)
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#define UART_PL011_TX_FIFO_LVL_1_4 (0x1u << UART_PL011_IFLS_TX_BIT_OFFSET)
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#define UART_PL011_TX_FIFO_LVL_1_2 (0x2u << UART_PL011_IFLS_TX_BIT_OFFSET)
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#define UART_PL011_TX_FIFO_LVL_3_4 (0x3u << UART_PL011_IFLS_TX_BIT_OFFSET)
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#define UART_PL011_TX_FIFO_LVL_7_8 (0x4u << UART_PL011_IFLS_TX_BIT_OFFSET)
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#define UART_PL011_TX_FIFO_LVL_1_8 (0x0u << UART_PL011_IFLS_TX_BIT_OFFSET)
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#define UART_PL011_TX_FIFO_LVL_1_4 (0x1u << UART_PL011_IFLS_TX_BIT_OFFSET)
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#define UART_PL011_TX_FIFO_LVL_1_2 (0x2u << UART_PL011_IFLS_TX_BIT_OFFSET)
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#define UART_PL011_TX_FIFO_LVL_3_4 (0x3u << UART_PL011_IFLS_TX_BIT_OFFSET)
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#define UART_PL011_TX_FIFO_LVL_7_8 (0x4u << UART_PL011_IFLS_TX_BIT_OFFSET)
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/* Default register values of UART PL011 */
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#define UART_PL011_DEFAULT_DATA_REG_VALUE (0x0u)
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#define UART_PL011_DEFAULT_ECR_VALUE (0xFFu)
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#define UART_PL011_DEFAULT_ILPR_VALUE (0x0u)
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#define UART_PL011_DEFAULT_IBRD_REG_VALUE (0x0u)
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#define UART_PL011_DEFAULT_FBRD_REG_VALUE (0x0u)
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#define UART_PL011_DEFAULT_DATA_REG_VALUE (0x0u)
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#define UART_PL011_DEFAULT_ECR_VALUE (0xFFu)
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#define UART_PL011_DEFAULT_ILPR_VALUE (0x0u)
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#define UART_PL011_DEFAULT_IBRD_REG_VALUE (0x0u)
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#define UART_PL011_DEFAULT_FBRD_REG_VALUE (0x0u)
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/* Clear UARTLCR */
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#define UART_PL011_DEFAULT_LCR_H_VALUE (0x0u)
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#define UART_PL011_DEFAULT_CTRL_REG_VALUE (0x0300u)
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#define UART_PL011_DEFAULT_LCR_H_VALUE (0x0u)
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#define UART_PL011_DEFAULT_CTRL_REG_VALUE (0x0300u)
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#define UART_PL011_DEFAULT_IFLS_REG_VALUE ( \
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UART_PL011_RX_FIFO_LVL_1_2 \
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| UART_PL011_TX_FIFO_LVL_7_8)
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#define UART_PL011_DEFAULT_IFLS_REG_VALUE (UART_PL011_RX_FIFO_LVL_1_2 | UART_PL011_TX_FIFO_LVL_7_8)
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/* Clear interrupt mask */
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#define UART_PL011_DEFAULT_IMSC_REG_VALUE (0x0u)
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#define UART_PL011_DEFAULT_IMSC_REG_VALUE (0x0u)
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/* Clear interrupt */
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#define UART_PL011_DEFAULT_ICR_VALUE (0x7FFu)
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#define UART_PL011_DEFAULT_DMACR_VALUE (0x0u)
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#define UART_PL011_DEFAULT_ICR_VALUE (0x7FFu)
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#define UART_PL011_DEFAULT_DMACR_VALUE (0x0u)
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#define FREQ_IRLPBAUD16_MIN (1420000u) /* 1.42 MHz */
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#define FREQ_IRLPBAUD16_MAX (2120000u) /* 2.12 MHz */
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#define SAMPLING_FACTOR (16u)
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#define UART_PL011_FBRD_WIDTH (6u)
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#define FREQ_IRLPBAUD16_MIN (1420000u) /* 1.42 MHz */
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#define FREQ_IRLPBAUD16_MAX (2120000u) /* 2.12 MHz */
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#define SAMPLING_FACTOR (16u)
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#define UART_PL011_FBRD_WIDTH (6u)
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/**
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* \brief ARM UART PL011 error enumeration types
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@ -220,7 +209,7 @@ void UartPl011SetLcrBits(struct UartRegisterMap *regMap, uint32_t bits);
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static inline void UartPl011Write(struct UartRegisterMap *regMap, uint8_t byte)
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{
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while (UartPl011IsBusy(regMap)) { }
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while (UartPl011IsBusy(regMap)) {}
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regMap->dr = byte;
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}
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@ -239,4 +228,3 @@ static inline void UartPl011EnableFifo(struct UartRegisterMap *regMap)
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}
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#endif
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#endif /* UART_PL011_SAMPLE_H */
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