ssi.h

// THIS HEADER FILE IS AUTOMATICALLY GENERATED -- DO NOT EDIT
 
#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.com/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      (0x0) SPI frame format
    // 0x001f0000 [20:16] DFS_32       (0x00) Data frame size in 32b transfer mode +
    // 0x0000f000 [15:12] CFS          (0x0) Control frame size +
    // 0x00000800 [11]    SRL          (0) Shift register loop (test mode)
    // 0x00000400 [10]    SLV_OE       (0) Slave output enable
    // 0x00000300 [9:8]   TMOD         (0x0) Transfer mode
    // 0x00000080 [7]     SCPOL        (0) Serial clock polarity
    // 0x00000040 [6]     SCPH         (0) Serial clock phase
    // 0x00000030 [5:4]   FRF          (0x0) Frame format
    // 0x0000000f [3:0]   DFS          (0x0) Data frame size
    io_rw_32 ctrlr0;
 
    _REG_(SSI_CTRLR1_OFFSET) // SSI_CTRLR1
    // Master Control register 1
    // 0x0000ffff [15:0]  NDF          (0x0000) 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        (0x0000) SSI clock divider
    io_rw_32 baudr;
 
    _REG_(SSI_TXFTLR_OFFSET) // SSI_TXFTLR
    // TX FIFO threshold level
    // 0x000000ff [7:0]   TFT          (0x00) Transmit FIFO threshold
    io_rw_32 txftlr;
 
    _REG_(SSI_RXFTLR_OFFSET) // SSI_RXFTLR
    // RX FIFO threshold level
    // 0x000000ff [7:0]   RFT          (0x00) Receive FIFO threshold
    io_rw_32 rxftlr;
 
    _REG_(SSI_TXFLR_OFFSET) // SSI_TXFLR
    // TX FIFO level
    // 0x000000ff [7:0]   TFTFL        (0x00) Transmit FIFO level
    io_ro_32 txflr;
 
    _REG_(SSI_RXFLR_OFFSET) // SSI_RXFLR
    // RX FIFO level
    // 0x000000ff [7:0]   RXTFL        (0x00) 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       (0x00) Transmit data watermark level
    io_rw_32 dmatdlr;
 
    _REG_(SSI_DMARDLR_OFFSET) // SSI_DMARDLR
    // DMA RX data level
    // 0x000000ff [7:0]   DMARDL       (0x00) 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           (0x00000000) 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          (0x00) 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      (0x03) SPI Command to send in XIP mode (INST_L = 8-bit) or to...
    // 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  (0x00) Wait cycles between control frame transmit and data...
    // 0x00000300 [9:8]   INST_L       (0x0) Instruction length (0/4/8/16b)
    // 0x0000003c [5:2]   ADDR_L       (0x0) Address length (0b-60b in 4b increments)
    // 0x00000003 [1:0]   TRANS_TYPE   (0x0) 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          (0x00) TXD drive edge
    io_rw_32 txd_drive_edge;
} ssi_hw_t;
 
#define ssi_hw ((ssi_hw_t *)XIP_SSI_BASE)
static_assert(sizeof (ssi_hw_t) == 0x00fc, "");
 
#endif // _HARDWARE_STRUCTS_SSI_H