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qup.h File Reference

Go to the source code of this file.

Data Structures

struct  qup_config_t
 
struct  qup_data_t
 

Macros

#define QUP_CONFIG   0x000
 
#define QUP_STATE   0x004
 
#define QUP_IO_MODES   0x008
 
#define QUP_SW_RESET   0x00C
 
#define QUP_TRANSFER_CANCEL   0x014
 
#define QUP_OPERATIONAL   0x018
 
#define QUP_ERROR_FLAGS   0x01C
 
#define QUP_ERROR_FLAGS_EN   0x020
 
#define QUP_TEST_CTRL   0x024
 
#define QUP_OPERATIONAL_MASK   0x028
 
#define QUP_HW_VERSION   0x030
 
#define QUP_MX_OUTPUT_COUNT   0x100
 
#define QUP_MX_OUTPUT_CNT_CURRENT   0x104
 
#define QUP_OUTPUT_DEBUG   0x108
 
#define QUP_OUTPUT_FIFO_WORD_CNT   0x10C
 
#define QUP_OUTPUT_FIFO   0x110
 
#define QUP_OUTPUT_FIFO_SIZE   64 /* bytes */
 
#define QUP_MX_WRITE_COUNT   0x150
 
#define QUP_MX_WRITE_CNT_CURRENT   0x154
 
#define QUP_MX_INPUT_COUNT   0x200
 
#define QUP_MX_INPUT_CNT_CURRENT   0x204
 
#define QUP_MX_READ_COUNT   0x208
 
#define QUP_MX_READ_CNT_CURRENT   0x20C
 
#define QUP_INPUT_DEBUG   0x210
 
#define QUP_INPUT_FIFO_WORD_CNT   0x214
 
#define QUP_INPUT_FIFO   0x218
 
#define QUP_INPUT_FIFO_SIZE   64 /* bytes */
 
#define QUP_I2C_MASTER_CLK_CTL   0x400
 
#define QUP_I2C_MASTER_STATUS   0x404
 
#define QUP_I2C_MASTER_CONFIG   0x408
 
#define QUP_I2C_MASTER_BUS_CLEAR   0x40C
 
#define QUP_I2C_MASTER_LOCAL_ID   0x410
 
#define QUP_I2C_MASTER_COMMAND   0x414
 
#define OUTPUT_FIFO_FULL   (1<<6)
 
#define INPUT_FIFO_NOT_EMPTY   (1<<5)
 
#define OUTPUT_FIFO_NOT_EMPTY   (1<<4)
 
#define MAX_OUTPUT_DONE_FLAG   (1<<10)
 
#define MAX_INPUT_DONE_FLAG   (1<<11)
 
#define INPUT_SERVICE_FLAG   (1<<9)
 
#define OUTPUT_SERVICE_FLAG   (1<<8)
 
#define QUP_UNPACK_EN   (1<<14)
 
#define QUP_PACK_EN   (1<<15)
 
#define QUP_OUTPUT_BIT_SHIFT_EN   (1<<16)
 
#define QUP_MODE_MASK   (0x03)
 
#define QUP_OUTPUT_MODE_SHFT   (10)
 
#define QUP_INPUT_MODE_SHFT   (12)
 
#define QUP_FS_DIVIDER_MASK   (0xFF)
 
#define QUP_APP_CLK_ON_EN   (1 << 12)
 
#define QUP_CORE_CLK_ON_EN   (1 << 13)
 
#define QUP_MINI_CORE_PROTO_SHFT   (8)
 
#define QUP_MINI_CORE_PROTO_MASK   (0x0F)
 
#define QUP_STATE_RESET   0x0
 
#define QUP_STATE_RUN   0x1
 
#define QUP_STATE_PAUSE   0x3
 
#define QUP_STATE_VALID   (1<<2)
 
#define QUP_STATE_MASK   0x3
 
#define QUP_STATE_VALID_MASK   (1<<2)
 
#define QUP_I2C_1CLK_NOOP_SEQ   0x1 /*MSB 8-bit NOP, LSB 8-bits 1 clk.*/
 
#define QUP_I2C_START_SEQ   (0x1 << 8)
 
#define QUP_I2C_DATA_SEQ   (0x2 << 8)
 
#define QUP_I2C_STOP_SEQ   (0x3 << 8)
 
#define QUP_I2C_RECV_SEQ   (0x4 << 8)
 
#define QUP_I2C_MIDATA_SEQ   (0x5 << 8)
 
#define QUP_I2C_MISTOP_SEQ   (0x6 << 8)
 
#define QUP_I2C_MINACK_SEQ   (0x7 << 8)
 
#define QUP_I2C_ADDR(x)   ((x & 0xFF) << 1)
 
#define QUP_I2C_DATA(x)   (x & 0xFF)
 
#define QUP_I2C_MI_TAG(x)   (x & 0xFF00)
 
#define QUP_I2C_SLAVE_READ   (0x1)
 
#define QUP_HS_DIVIDER_SHFT   (8)
 
#define QUP_DIVIDER_MIN_VAL   (0x3)
 
#define QUP_I2C_INVALID_READ_SEQ   (1 << 25)
 
#define QUP_I2C_INVALID_READ_ADDR   (1 << 24)
 
#define QUP_I2C_INVALID_TAG   (1 << 23)
 
#define QUP_I2C_FAILED_MASK   (0x3 << 6)
 
#define QUP_I2C_INVALID_WRITE   (1 << 5)
 
#define QUP_I2C_ARB_LOST   (1 << 4)
 
#define QUP_I2C_PACKET_NACK   (1 << 3)
 
#define QUP_I2C_BUS_ERROR   (1 << 2)
 

Enumerations

enum  qup_return_t {
  QUP_SUCCESS = 0 , QUP_ERR_BAD_PARAM , QUP_ERR_STATE_SET , QUP_ERR_TIMEOUT ,
  QUP_ERR_UNSUPPORTED , QUP_ERR_I2C_FAILED , QUP_ERR_I2C_ARB_LOST , QUP_ERR_I2C_BUS_ERROR ,
  QUP_ERR_I2C_INVALID_SLAVE_ADDR , QUP_ERR_XFER_FAIL , QUP_ERR_I2C_NACK , QUP_ERR_I2C_INVALID_WRITE ,
  QUP_ERR_I2C_INVALID_TAG , QUP_ERR_UNDEFINED , QUP_SUCCESS = 0 , QUP_ERR_BAD_PARAM ,
  QUP_ERR_STATE_SET , QUP_ERR_TIMEOUT , QUP_ERR_UNSUPPORTED , QUP_ERR_I2C_FAILED ,
  QUP_ERR_I2C_ARB_LOST , QUP_ERR_I2C_BUS_ERROR , QUP_ERR_I2C_INVALID_SLAVE_ADDR , QUP_ERR_XFER_FAIL ,
  QUP_ERR_I2C_NACK , QUP_ERR_I2C_INVALID_WRITE , QUP_ERR_I2C_INVALID_TAG , QUP_ERR_UNDEFINED ,
  QUP_SUCCESS = 0 , QUP_ERR_BAD_PARAM , QUP_ERR_STATE_SET , QUP_ERR_TIMEOUT ,
  QUP_ERR_UNSUPPORTED , QUP_ERR_I2C_FAILED , QUP_ERR_I2C_ARB_LOST , QUP_ERR_I2C_BUS_ERROR ,
  QUP_ERR_I2C_INVALID_SLAVE_ADDR , QUP_ERR_XFER_FAIL , QUP_ERR_I2C_NACK , QUP_ERR_I2C_INVALID_WRITE ,
  QUP_ERR_I2C_INVALID_TAG , QUP_ERR_UNDEFINED
}
 
enum  qup_protocol_t {
  QUP_MINICORE_SPI = 1 , QUP_MINICORE_I2C_MASTER , QUP_MINICORE_I2C_SLAVE , QUP_MINICORE_SPI = 1 ,
  QUP_MINICORE_I2C_MASTER , QUP_MINICORE_I2C_SLAVE , QUP_MINICORE_SPI = 1 , QUP_MINICORE_I2C_MASTER ,
  QUP_MINICORE_I2C_SLAVE
}
 
enum  qup_mode_t {
  QUP_MODE_FIFO = 0 , QUP_MODE_BLOCK , QUP_MODE_DATAMOVER , QUP_MODE_FIFO = 0 ,
  QUP_MODE_BLOCK , QUP_MODE_DATAMOVER , QUP_MODE_FIFO = 0 , QUP_MODE_BLOCK ,
  QUP_MODE_DATAMOVER
}
 

Functions

qup_return_t qup_init (blsp_qup_id_t id, const qup_config_t *config_ptr)
 
qup_return_t qup_set_state (blsp_qup_id_t id, uint32_t state)
 
qup_return_t qup_reset_i2c_master_status (blsp_qup_id_t id)
 
qup_return_t qup_send_data (blsp_qup_id_t id, qup_data_t *p_tx_obj, uint8_t stop_seq)
 
qup_return_t qup_recv_data (blsp_qup_id_t id, qup_data_t *p_tx_obj)
 

Macro Definition Documentation

◆ INPUT_FIFO_NOT_EMPTY

#define INPUT_FIFO_NOT_EMPTY   (1<<5)

Definition at line 42 of file qup.h.

◆ INPUT_SERVICE_FLAG

#define INPUT_SERVICE_FLAG   (1<<9)

Definition at line 46 of file qup.h.

◆ MAX_INPUT_DONE_FLAG

#define MAX_INPUT_DONE_FLAG   (1<<11)

Definition at line 45 of file qup.h.

◆ MAX_OUTPUT_DONE_FLAG

#define MAX_OUTPUT_DONE_FLAG   (1<<10)

Definition at line 44 of file qup.h.

◆ OUTPUT_FIFO_FULL

#define OUTPUT_FIFO_FULL   (1<<6)

Definition at line 41 of file qup.h.

◆ OUTPUT_FIFO_NOT_EMPTY

#define OUTPUT_FIFO_NOT_EMPTY   (1<<4)

Definition at line 43 of file qup.h.

◆ OUTPUT_SERVICE_FLAG

#define OUTPUT_SERVICE_FLAG   (1<<8)

Definition at line 47 of file qup.h.

◆ QUP_APP_CLK_ON_EN

#define QUP_APP_CLK_ON_EN   (1 << 12)

Definition at line 58 of file qup.h.

◆ QUP_CONFIG

#define QUP_CONFIG   0x000

Definition at line 7 of file qup.h.

◆ QUP_CORE_CLK_ON_EN

#define QUP_CORE_CLK_ON_EN   (1 << 13)

Definition at line 59 of file qup.h.

◆ QUP_DIVIDER_MIN_VAL

#define QUP_DIVIDER_MIN_VAL   (0x3)

Definition at line 90 of file qup.h.

◆ QUP_ERROR_FLAGS

#define QUP_ERROR_FLAGS   0x01C

Definition at line 13 of file qup.h.

◆ QUP_ERROR_FLAGS_EN

#define QUP_ERROR_FLAGS_EN   0x020

Definition at line 14 of file qup.h.

◆ QUP_FS_DIVIDER_MASK

#define QUP_FS_DIVIDER_MASK   (0xFF)

Definition at line 56 of file qup.h.

◆ QUP_HS_DIVIDER_SHFT

#define QUP_HS_DIVIDER_SHFT   (8)

Definition at line 89 of file qup.h.

◆ QUP_HW_VERSION

#define QUP_HW_VERSION   0x030

Definition at line 17 of file qup.h.

◆ QUP_I2C_1CLK_NOOP_SEQ

#define QUP_I2C_1CLK_NOOP_SEQ   0x1 /*MSB 8-bit NOP, LSB 8-bits 1 clk.*/

Definition at line 72 of file qup.h.

◆ QUP_I2C_ADDR

#define QUP_I2C_ADDR (   x)    ((x & 0xFF) << 1)

Definition at line 83 of file qup.h.

◆ QUP_I2C_ARB_LOST

#define QUP_I2C_ARB_LOST   (1 << 4)

Definition at line 98 of file qup.h.

◆ QUP_I2C_BUS_ERROR

#define QUP_I2C_BUS_ERROR   (1 << 2)

Definition at line 100 of file qup.h.

◆ QUP_I2C_DATA

#define QUP_I2C_DATA (   x)    (x & 0xFF)

Definition at line 84 of file qup.h.

◆ QUP_I2C_DATA_SEQ

#define QUP_I2C_DATA_SEQ   (0x2 << 8)

Definition at line 74 of file qup.h.

◆ QUP_I2C_FAILED_MASK

#define QUP_I2C_FAILED_MASK   (0x3 << 6)

Definition at line 96 of file qup.h.

◆ QUP_I2C_INVALID_READ_ADDR

#define QUP_I2C_INVALID_READ_ADDR   (1 << 24)

Definition at line 94 of file qup.h.

◆ QUP_I2C_INVALID_READ_SEQ

#define QUP_I2C_INVALID_READ_SEQ   (1 << 25)

Definition at line 93 of file qup.h.

◆ QUP_I2C_INVALID_TAG

#define QUP_I2C_INVALID_TAG   (1 << 23)

Definition at line 95 of file qup.h.

◆ QUP_I2C_INVALID_WRITE

#define QUP_I2C_INVALID_WRITE   (1 << 5)

Definition at line 97 of file qup.h.

◆ QUP_I2C_MASTER_BUS_CLEAR

#define QUP_I2C_MASTER_BUS_CLEAR   0x40C

Definition at line 37 of file qup.h.

◆ QUP_I2C_MASTER_CLK_CTL

#define QUP_I2C_MASTER_CLK_CTL   0x400

Definition at line 34 of file qup.h.

◆ QUP_I2C_MASTER_COMMAND

#define QUP_I2C_MASTER_COMMAND   0x414

Definition at line 39 of file qup.h.

◆ QUP_I2C_MASTER_CONFIG

#define QUP_I2C_MASTER_CONFIG   0x408

Definition at line 36 of file qup.h.

◆ QUP_I2C_MASTER_LOCAL_ID

#define QUP_I2C_MASTER_LOCAL_ID   0x410

Definition at line 38 of file qup.h.

◆ QUP_I2C_MASTER_STATUS

#define QUP_I2C_MASTER_STATUS   0x404

Definition at line 35 of file qup.h.

◆ QUP_I2C_MI_TAG

#define QUP_I2C_MI_TAG (   x)    (x & 0xFF00)

Definition at line 85 of file qup.h.

◆ QUP_I2C_MIDATA_SEQ

#define QUP_I2C_MIDATA_SEQ   (0x5 << 8)

Definition at line 79 of file qup.h.

◆ QUP_I2C_MINACK_SEQ

#define QUP_I2C_MINACK_SEQ   (0x7 << 8)

Definition at line 81 of file qup.h.

◆ QUP_I2C_MISTOP_SEQ

#define QUP_I2C_MISTOP_SEQ   (0x6 << 8)

Definition at line 80 of file qup.h.

◆ QUP_I2C_PACKET_NACK

#define QUP_I2C_PACKET_NACK   (1 << 3)

Definition at line 99 of file qup.h.

◆ QUP_I2C_RECV_SEQ

#define QUP_I2C_RECV_SEQ   (0x4 << 8)

Definition at line 76 of file qup.h.

◆ QUP_I2C_SLAVE_READ

#define QUP_I2C_SLAVE_READ   (0x1)

Definition at line 86 of file qup.h.

◆ QUP_I2C_START_SEQ

#define QUP_I2C_START_SEQ   (0x1 << 8)

Definition at line 73 of file qup.h.

◆ QUP_I2C_STOP_SEQ

#define QUP_I2C_STOP_SEQ   (0x3 << 8)

Definition at line 75 of file qup.h.

◆ QUP_INPUT_DEBUG

#define QUP_INPUT_DEBUG   0x210

Definition at line 30 of file qup.h.

◆ QUP_INPUT_FIFO

#define QUP_INPUT_FIFO   0x218

Definition at line 32 of file qup.h.

◆ QUP_INPUT_FIFO_SIZE

#define QUP_INPUT_FIFO_SIZE   64 /* bytes */

Definition at line 33 of file qup.h.

◆ QUP_INPUT_FIFO_WORD_CNT

#define QUP_INPUT_FIFO_WORD_CNT   0x214

Definition at line 31 of file qup.h.

◆ QUP_INPUT_MODE_SHFT

#define QUP_INPUT_MODE_SHFT   (12)

Definition at line 54 of file qup.h.

◆ QUP_IO_MODES

#define QUP_IO_MODES   0x008

Definition at line 9 of file qup.h.

◆ QUP_MINI_CORE_PROTO_MASK

#define QUP_MINI_CORE_PROTO_MASK   (0x0F)

Definition at line 61 of file qup.h.

◆ QUP_MINI_CORE_PROTO_SHFT

#define QUP_MINI_CORE_PROTO_SHFT   (8)

Definition at line 60 of file qup.h.

◆ QUP_MODE_MASK

#define QUP_MODE_MASK   (0x03)

Definition at line 52 of file qup.h.

◆ QUP_MX_INPUT_CNT_CURRENT

#define QUP_MX_INPUT_CNT_CURRENT   0x204

Definition at line 27 of file qup.h.

◆ QUP_MX_INPUT_COUNT

#define QUP_MX_INPUT_COUNT   0x200

Definition at line 26 of file qup.h.

◆ QUP_MX_OUTPUT_CNT_CURRENT

#define QUP_MX_OUTPUT_CNT_CURRENT   0x104

Definition at line 19 of file qup.h.

◆ QUP_MX_OUTPUT_COUNT

#define QUP_MX_OUTPUT_COUNT   0x100

Definition at line 18 of file qup.h.

◆ QUP_MX_READ_CNT_CURRENT

#define QUP_MX_READ_CNT_CURRENT   0x20C

Definition at line 29 of file qup.h.

◆ QUP_MX_READ_COUNT

#define QUP_MX_READ_COUNT   0x208

Definition at line 28 of file qup.h.

◆ QUP_MX_WRITE_CNT_CURRENT

#define QUP_MX_WRITE_CNT_CURRENT   0x154

Definition at line 25 of file qup.h.

◆ QUP_MX_WRITE_COUNT

#define QUP_MX_WRITE_COUNT   0x150

Definition at line 24 of file qup.h.

◆ QUP_OPERATIONAL

#define QUP_OPERATIONAL   0x018

Definition at line 12 of file qup.h.

◆ QUP_OPERATIONAL_MASK

#define QUP_OPERATIONAL_MASK   0x028

Definition at line 16 of file qup.h.

◆ QUP_OUTPUT_BIT_SHIFT_EN

#define QUP_OUTPUT_BIT_SHIFT_EN   (1<<16)

Definition at line 50 of file qup.h.

◆ QUP_OUTPUT_DEBUG

#define QUP_OUTPUT_DEBUG   0x108

Definition at line 20 of file qup.h.

◆ QUP_OUTPUT_FIFO

#define QUP_OUTPUT_FIFO   0x110

Definition at line 22 of file qup.h.

◆ QUP_OUTPUT_FIFO_SIZE

#define QUP_OUTPUT_FIFO_SIZE   64 /* bytes */

Definition at line 23 of file qup.h.

◆ QUP_OUTPUT_FIFO_WORD_CNT

#define QUP_OUTPUT_FIFO_WORD_CNT   0x10C

Definition at line 21 of file qup.h.

◆ QUP_OUTPUT_MODE_SHFT

#define QUP_OUTPUT_MODE_SHFT   (10)

Definition at line 53 of file qup.h.

◆ QUP_PACK_EN

#define QUP_PACK_EN   (1<<15)

Definition at line 49 of file qup.h.

◆ QUP_STATE

#define QUP_STATE   0x004

Definition at line 8 of file qup.h.

◆ QUP_STATE_MASK

#define QUP_STATE_MASK   0x3

Definition at line 68 of file qup.h.

◆ QUP_STATE_PAUSE

#define QUP_STATE_PAUSE   0x3

Definition at line 66 of file qup.h.

◆ QUP_STATE_RESET

#define QUP_STATE_RESET   0x0

Definition at line 64 of file qup.h.

◆ QUP_STATE_RUN

#define QUP_STATE_RUN   0x1

Definition at line 65 of file qup.h.

◆ QUP_STATE_VALID

#define QUP_STATE_VALID   (1<<2)

Definition at line 67 of file qup.h.

◆ QUP_STATE_VALID_MASK

#define QUP_STATE_VALID_MASK   (1<<2)

Definition at line 69 of file qup.h.

◆ QUP_SW_RESET

#define QUP_SW_RESET   0x00C

Definition at line 10 of file qup.h.

◆ QUP_TEST_CTRL

#define QUP_TEST_CTRL   0x024

Definition at line 15 of file qup.h.

◆ QUP_TRANSFER_CANCEL

#define QUP_TRANSFER_CANCEL   0x014

Definition at line 11 of file qup.h.

◆ QUP_UNPACK_EN

#define QUP_UNPACK_EN   (1<<14)

Definition at line 48 of file qup.h.

Enumeration Type Documentation

◆ qup_mode_t

enum qup_mode_t
Enumerator
QUP_MODE_FIFO 
QUP_MODE_BLOCK 
QUP_MODE_DATAMOVER 
QUP_MODE_FIFO 
QUP_MODE_BLOCK 
QUP_MODE_DATAMOVER 
QUP_MODE_FIFO 
QUP_MODE_BLOCK 
QUP_MODE_DATAMOVER 

Definition at line 125 of file qup.h.

◆ qup_protocol_t

Enumerator
QUP_MINICORE_SPI 
QUP_MINICORE_I2C_MASTER 
QUP_MINICORE_I2C_SLAVE 
QUP_MINICORE_SPI 
QUP_MINICORE_I2C_MASTER 
QUP_MINICORE_I2C_SLAVE 
QUP_MINICORE_SPI 
QUP_MINICORE_I2C_MASTER 
QUP_MINICORE_I2C_SLAVE 

Definition at line 119 of file qup.h.

◆ qup_return_t

Enumerator
QUP_SUCCESS 
QUP_ERR_BAD_PARAM 
QUP_ERR_STATE_SET 
QUP_ERR_TIMEOUT 
QUP_ERR_UNSUPPORTED 
QUP_ERR_I2C_FAILED 
QUP_ERR_I2C_ARB_LOST 
QUP_ERR_I2C_BUS_ERROR 
QUP_ERR_I2C_INVALID_SLAVE_ADDR 
QUP_ERR_XFER_FAIL 
QUP_ERR_I2C_NACK 
QUP_ERR_I2C_INVALID_WRITE 
QUP_ERR_I2C_INVALID_TAG 
QUP_ERR_UNDEFINED 
QUP_SUCCESS 
QUP_ERR_BAD_PARAM 
QUP_ERR_STATE_SET 
QUP_ERR_TIMEOUT 
QUP_ERR_UNSUPPORTED 
QUP_ERR_I2C_FAILED 
QUP_ERR_I2C_ARB_LOST 
QUP_ERR_I2C_BUS_ERROR 
QUP_ERR_I2C_INVALID_SLAVE_ADDR 
QUP_ERR_XFER_FAIL 
QUP_ERR_I2C_NACK 
QUP_ERR_I2C_INVALID_WRITE 
QUP_ERR_I2C_INVALID_TAG 
QUP_ERR_UNDEFINED 
QUP_SUCCESS 
QUP_ERR_BAD_PARAM 
QUP_ERR_STATE_SET 
QUP_ERR_TIMEOUT 
QUP_ERR_UNSUPPORTED 
QUP_ERR_I2C_FAILED 
QUP_ERR_I2C_ARB_LOST 
QUP_ERR_I2C_BUS_ERROR 
QUP_ERR_I2C_INVALID_SLAVE_ADDR 
QUP_ERR_XFER_FAIL 
QUP_ERR_I2C_NACK 
QUP_ERR_I2C_INVALID_WRITE 
QUP_ERR_I2C_INVALID_TAG 
QUP_ERR_UNDEFINED 

Definition at line 102 of file qup.h.

Function Documentation

◆ qup_init()

◆ qup_recv_data()

qup_return_t qup_recv_data ( blsp_qup_id_t  id,
qup_data_t p_tx_obj 
)

◆ qup_reset_i2c_master_status()

qup_return_t qup_reset_i2c_master_status ( blsp_qup_id_t  id)

Definition at line 79 of file qup.c.

References QUP_ADDR, QUP_I2C_MASTER_STATUS, QUP_SUCCESS, and qup_write32.

Referenced by qup_reset_master_status().

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◆ qup_send_data()

qup_return_t qup_send_data ( blsp_qup_id_t  id,
qup_data_t p_tx_obj,
uint8_t  stop_seq 
)

◆ qup_set_state()

qup_return_t qup_set_state ( blsp_qup_id_t  id,
uint32_t  state 
)

Definition at line 450 of file qup.c.

References QUP_ADDR, QUP_ERR_UNDEFINED, QUP_STATE, QUP_STATE_PAUSE, QUP_STATE_RESET, QUP_STATE_VALID_MASK, qup_wait_for_state(), qup_write32, and read32().

Referenced by qup_i2c_read(), qup_i2c_read_fifo(), qup_i2c_write(), qup_i2c_write_fifo(), and qup_init().

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