// THIS HEADER FILE IS AUTOMATICALLY GENERATED -- DO NOT EDIT /* * Copyright (c) 2021 Raspberry Pi (Trading) Ltd. * * SPDX-License-Identifier: BSD-3-Clause */ #ifndef _HARDWARE_STRUCTS_SSI_H #define _HARDWARE_STRUCTS_SSI_H #include "hardware/address_mapped.h" #include "hardware/regs/ssi.h" // Reference to datasheet: https://datasheets.raspberrypi.org/rp2040/rp2040-datasheet.pdf#tab-registerlist_ssi // // The _REG_ macro is intended to help make the register navigable in your IDE (for example, using the "Go to Definition" feature) // _REG_(x) will link to the corresponding register in hardware/regs/ssi.h. // // Bit-field descriptions are of the form: // BITMASK [BITRANGE]: FIELDNAME (RESETVALUE): DESCRIPTION typedef struct { _REG_(SSI_CTRLR0_OFFSET) // SSI_CTRLR0 // Control register 0 // 0x01000000 [24] : SSTE (0): Slave select toggle enable // 0x00600000 [22:21] : SPI_FRF (0): SPI frame format // 0x001f0000 [20:16] : DFS_32 (0): Data frame size in 32b transfer mode // 0x0000f000 [15:12] : CFS (0): Control frame size // 0x00000800 [11] : SRL (0): Shift register loop (test mode) // 0x00000400 [10] : SLV_OE (0): Slave output enable // 0x00000300 [9:8] : TMOD (0): Transfer mode // 0x00000080 [7] : SCPOL (0): Serial clock polarity // 0x00000040 [6] : SCPH (0): Serial clock phase // 0x00000030 [5:4] : FRF (0): Frame format // 0x0000000f [3:0] : DFS (0): Data frame size io_rw_32 ctrlr0; _REG_(SSI_CTRLR1_OFFSET) // SSI_CTRLR1 // Master Control register 1 // 0x0000ffff [15:0] : NDF (0): Number of data frames io_rw_32 ctrlr1; _REG_(SSI_SSIENR_OFFSET) // SSI_SSIENR // SSI Enable // 0x00000001 [0] : SSI_EN (0): SSI enable io_rw_32 ssienr; _REG_(SSI_MWCR_OFFSET) // SSI_MWCR // Microwire Control // 0x00000004 [2] : MHS (0): Microwire handshaking // 0x00000002 [1] : MDD (0): Microwire control // 0x00000001 [0] : MWMOD (0): Microwire transfer mode io_rw_32 mwcr; _REG_(SSI_SER_OFFSET) // SSI_SER // Slave enable // 0x00000001 [0] : SER (0): For each bit: io_rw_32 ser; _REG_(SSI_BAUDR_OFFSET) // SSI_BAUDR // Baud rate // 0x0000ffff [15:0] : SCKDV (0): SSI clock divider io_rw_32 baudr; _REG_(SSI_TXFTLR_OFFSET) // SSI_TXFTLR // TX FIFO threshold level // 0x000000ff [7:0] : TFT (0): Transmit FIFO threshold io_rw_32 txftlr; _REG_(SSI_RXFTLR_OFFSET) // SSI_RXFTLR // RX FIFO threshold level // 0x000000ff [7:0] : RFT (0): Receive FIFO threshold io_rw_32 rxftlr; _REG_(SSI_TXFLR_OFFSET) // SSI_TXFLR // TX FIFO level // 0x000000ff [7:0] : TFTFL (0): Transmit FIFO level io_ro_32 txflr; _REG_(SSI_RXFLR_OFFSET) // SSI_RXFLR // RX FIFO level // 0x000000ff [7:0] : RXTFL (0): Receive FIFO level io_ro_32 rxflr; _REG_(SSI_SR_OFFSET) // SSI_SR // Status register // 0x00000040 [6] : DCOL (0): Data collision error // 0x00000020 [5] : TXE (0): Transmission error // 0x00000010 [4] : RFF (0): Receive FIFO full // 0x00000008 [3] : RFNE (0): Receive FIFO not empty // 0x00000004 [2] : TFE (0): Transmit FIFO empty // 0x00000002 [1] : TFNF (0): Transmit FIFO not full // 0x00000001 [0] : BUSY (0): SSI busy flag io_ro_32 sr; _REG_(SSI_IMR_OFFSET) // SSI_IMR // Interrupt mask // 0x00000020 [5] : MSTIM (0): Multi-master contention interrupt mask // 0x00000010 [4] : RXFIM (0): Receive FIFO full interrupt mask // 0x00000008 [3] : RXOIM (0): Receive FIFO overflow interrupt mask // 0x00000004 [2] : RXUIM (0): Receive FIFO underflow interrupt mask // 0x00000002 [1] : TXOIM (0): Transmit FIFO overflow interrupt mask // 0x00000001 [0] : TXEIM (0): Transmit FIFO empty interrupt mask io_rw_32 imr; _REG_(SSI_ISR_OFFSET) // SSI_ISR // Interrupt status // 0x00000020 [5] : MSTIS (0): Multi-master contention interrupt status // 0x00000010 [4] : RXFIS (0): Receive FIFO full interrupt status // 0x00000008 [3] : RXOIS (0): Receive FIFO overflow interrupt status // 0x00000004 [2] : RXUIS (0): Receive FIFO underflow interrupt status // 0x00000002 [1] : TXOIS (0): Transmit FIFO overflow interrupt status // 0x00000001 [0] : TXEIS (0): Transmit FIFO empty interrupt status io_ro_32 isr; _REG_(SSI_RISR_OFFSET) // SSI_RISR // Raw interrupt status // 0x00000020 [5] : MSTIR (0): Multi-master contention raw interrupt status // 0x00000010 [4] : RXFIR (0): Receive FIFO full raw interrupt status // 0x00000008 [3] : RXOIR (0): Receive FIFO overflow raw interrupt status // 0x00000004 [2] : RXUIR (0): Receive FIFO underflow raw interrupt status // 0x00000002 [1] : TXOIR (0): Transmit FIFO overflow raw interrupt status // 0x00000001 [0] : TXEIR (0): Transmit FIFO empty raw interrupt status io_ro_32 risr; _REG_(SSI_TXOICR_OFFSET) // SSI_TXOICR // TX FIFO overflow interrupt clear // 0x00000001 [0] : TXOICR (0): Clear-on-read transmit FIFO overflow interrupt io_ro_32 txoicr; _REG_(SSI_RXOICR_OFFSET) // SSI_RXOICR // RX FIFO overflow interrupt clear // 0x00000001 [0] : RXOICR (0): Clear-on-read receive FIFO overflow interrupt io_ro_32 rxoicr; _REG_(SSI_RXUICR_OFFSET) // SSI_RXUICR // RX FIFO underflow interrupt clear // 0x00000001 [0] : RXUICR (0): Clear-on-read receive FIFO underflow interrupt io_ro_32 rxuicr; _REG_(SSI_MSTICR_OFFSET) // SSI_MSTICR // Multi-master interrupt clear // 0x00000001 [0] : MSTICR (0): Clear-on-read multi-master contention interrupt io_ro_32 msticr; _REG_(SSI_ICR_OFFSET) // SSI_ICR // Interrupt clear // 0x00000001 [0] : ICR (0): Clear-on-read all active interrupts io_ro_32 icr; _REG_(SSI_DMACR_OFFSET) // SSI_DMACR // DMA control // 0x00000002 [1] : TDMAE (0): Transmit DMA enable // 0x00000001 [0] : RDMAE (0): Receive DMA enable io_rw_32 dmacr; _REG_(SSI_DMATDLR_OFFSET) // SSI_DMATDLR // DMA TX data level // 0x000000ff [7:0] : DMATDL (0): Transmit data watermark level io_rw_32 dmatdlr; _REG_(SSI_DMARDLR_OFFSET) // SSI_DMARDLR // DMA RX data level // 0x000000ff [7:0] : DMARDL (0): Receive data watermark level (DMARDLR+1) io_rw_32 dmardlr; _REG_(SSI_IDR_OFFSET) // SSI_IDR // Identification register // 0xffffffff [31:0] : IDCODE (0x51535049): Peripheral dentification code io_ro_32 idr; _REG_(SSI_SSI_VERSION_ID_OFFSET) // SSI_SSI_VERSION_ID // Version ID // 0xffffffff [31:0] : SSI_COMP_VERSION (0x3430312a): SNPS component version (format X io_ro_32 ssi_version_id; _REG_(SSI_DR0_OFFSET) // SSI_DR0 // Data Register 0 (of 36) // 0xffffffff [31:0] : DR (0): First data register of 36 io_rw_32 dr0; uint32_t _pad0[35]; _REG_(SSI_RX_SAMPLE_DLY_OFFSET) // SSI_RX_SAMPLE_DLY // RX sample delay // 0x000000ff [7:0] : RSD (0): RXD sample delay (in SCLK cycles) io_rw_32 rx_sample_dly; _REG_(SSI_SPI_CTRLR0_OFFSET) // SSI_SPI_CTRLR0 // SPI control // 0xff000000 [31:24] : XIP_CMD (0x3): SPI Command to send in XIP mode (INST_L = 8-bit) or to append to Address (INST_L = 0-bit) // 0x00040000 [18] : SPI_RXDS_EN (0): Read data strobe enable // 0x00020000 [17] : INST_DDR_EN (0): Instruction DDR transfer enable // 0x00010000 [16] : SPI_DDR_EN (0): SPI DDR transfer enable // 0x0000f800 [15:11] : WAIT_CYCLES (0): Wait cycles between control frame transmit and data reception (in SCLK cycles) // 0x00000300 [9:8] : INST_L (0): Instruction length (0/4/8/16b) // 0x0000003c [5:2] : ADDR_L (0): Address length (0b-60b in 4b increments) // 0x00000003 [1:0] : TRANS_TYPE (0): Address and instruction transfer format io_rw_32 spi_ctrlr0; _REG_(SSI_TXD_DRIVE_EDGE_OFFSET) // SSI_TXD_DRIVE_EDGE // TX drive edge // 0x000000ff [7:0] : TDE (0): TXD drive edge io_rw_32 txd_drive_edge; } ssi_hw_t; #define ssi_hw ((ssi_hw_t *const)XIP_SSI_BASE) #endif