pl022.h File Reference

#include <linux/types.h>

Go to the source code of this file.

Data Structures
struct	ssp_clock_params
struct	pl022_ssp_controller
struct	pl022_config_chip

Enumerations
enum	ssp_loopback { LOOPBACK_DISABLED, LOOPBACK_ENABLED }
enum	ssp_interface { SSP_INTERFACE_MOTOROLA_SPI, SSP_INTERFACE_TI_SYNC_SERIAL, SSP_INTERFACE_NATIONAL_MICROWIRE, SSP_INTERFACE_UNIDIRECTIONAL }
enum	ssp_hierarchy { SSP_MASTER, SSP_SLAVE }
enum	ssp_rx_endian { SSP_RX_MSB, SSP_RX_LSB }
enum	ssp_tx_endian { SSP_TX_MSB, SSP_TX_LSB }
enum	ssp_data_size {   SSP_DATA_BITS_4 = 0x03, SSP_DATA_BITS_5, SSP_DATA_BITS_6, SSP_DATA_BITS_7,   SSP_DATA_BITS_8, SSP_DATA_BITS_9, SSP_DATA_BITS_10, SSP_DATA_BITS_11,   SSP_DATA_BITS_12, SSP_DATA_BITS_13, SSP_DATA_BITS_14, SSP_DATA_BITS_15,   SSP_DATA_BITS_16, SSP_DATA_BITS_17, SSP_DATA_BITS_18, SSP_DATA_BITS_19,   SSP_DATA_BITS_20, SSP_DATA_BITS_21, SSP_DATA_BITS_22, SSP_DATA_BITS_23,   SSP_DATA_BITS_24, SSP_DATA_BITS_25, SSP_DATA_BITS_26, SSP_DATA_BITS_27,   SSP_DATA_BITS_28, SSP_DATA_BITS_29, SSP_DATA_BITS_30, SSP_DATA_BITS_31,   SSP_DATA_BITS_32 }
enum	ssp_mode { INTERRUPT_TRANSFER, POLLING_TRANSFER, DMA_TRANSFER }
enum	ssp_rx_level_trig {   SSP_RX_1_OR_MORE_ELEM, SSP_RX_4_OR_MORE_ELEM, SSP_RX_8_OR_MORE_ELEM, SSP_RX_16_OR_MORE_ELEM,   SSP_RX_32_OR_MORE_ELEM }
enum	ssp_tx_level_trig {   SSP_TX_1_OR_MORE_EMPTY_LOC, SSP_TX_4_OR_MORE_EMPTY_LOC, SSP_TX_8_OR_MORE_EMPTY_LOC, SSP_TX_16_OR_MORE_EMPTY_LOC,   SSP_TX_32_OR_MORE_EMPTY_LOC }
enum	ssp_spi_clk_phase { SSP_CLK_FIRST_EDGE, SSP_CLK_SECOND_EDGE }
enum	ssp_spi_clk_pol { SSP_CLK_POL_IDLE_LOW, SSP_CLK_POL_IDLE_HIGH }
enum	ssp_microwire_ctrl_len {   SSP_BITS_4 = 0x03, SSP_BITS_5, SSP_BITS_6, SSP_BITS_7,   SSP_BITS_8, SSP_BITS_9, SSP_BITS_10, SSP_BITS_11,   SSP_BITS_12, SSP_BITS_13, SSP_BITS_14, SSP_BITS_15,   SSP_BITS_16, SSP_BITS_17, SSP_BITS_18, SSP_BITS_19,   SSP_BITS_20, SSP_BITS_21, SSP_BITS_22, SSP_BITS_23,   SSP_BITS_24, SSP_BITS_25, SSP_BITS_26, SSP_BITS_27,   SSP_BITS_28, SSP_BITS_29, SSP_BITS_30, SSP_BITS_31,   SSP_BITS_32 }
enum	ssp_microwire_wait_state { SSP_MWIRE_WAIT_ZERO, SSP_MWIRE_WAIT_ONE }
enum	ssp_duplex { SSP_MICROWIRE_CHANNEL_FULL_DUPLEX, SSP_MICROWIRE_CHANNEL_HALF_DUPLEX }
enum	ssp_clkdelay {   SSP_FEEDBACK_CLK_DELAY_NONE, SSP_FEEDBACK_CLK_DELAY_1T, SSP_FEEDBACK_CLK_DELAY_2T, SSP_FEEDBACK_CLK_DELAY_3T,   SSP_FEEDBACK_CLK_DELAY_4T, SSP_FEEDBACK_CLK_DELAY_5T, SSP_FEEDBACK_CLK_DELAY_6T, SSP_FEEDBACK_CLK_DELAY_7T }
enum	ssp_chip_select { SSP_CHIP_SELECT, SSP_CHIP_DESELECT }

Enumeration Type Documentation

enum ssp_chip_select

CHIP select/deselect commands

Enumerator:

SSP_CHIP_SELECT
SSP_CHIP_DESELECT

Definition at line 225 of file pl022.h.

enum ssp_clkdelay

enum ssp_clkdelay - an optional clock delay on the feedback clock only available in the ST Micro PL023 variant. : no delay, the data coming in from the slave is sampled directly : the incoming slave data is sampled with a delay of T-dt : dito with a delay if 2T-dt : dito with a delay if 3T-dt : dito with a delay if 4T-dt : dito with a delay if 5T-dt : dito with a delay if 6T-dt : dito with a delay if 7T-dt

Enumerator:

SSP_FEEDBACK_CLK_DELAY_NONE
SSP_FEEDBACK_CLK_DELAY_1T
SSP_FEEDBACK_CLK_DELAY_2T
SSP_FEEDBACK_CLK_DELAY_3T
SSP_FEEDBACK_CLK_DELAY_4T
SSP_FEEDBACK_CLK_DELAY_5T
SSP_FEEDBACK_CLK_DELAY_6T
SSP_FEEDBACK_CLK_DELAY_7T

Definition at line 211 of file pl022.h.

enum ssp_data_size

enum ssp_data_size - number of bits in one data element

Enumerator:

SSP_DATA_BITS_4
SSP_DATA_BITS_5
SSP_DATA_BITS_6
SSP_DATA_BITS_7
SSP_DATA_BITS_8
SSP_DATA_BITS_9
SSP_DATA_BITS_10
SSP_DATA_BITS_11
SSP_DATA_BITS_12
SSP_DATA_BITS_13
SSP_DATA_BITS_14
SSP_DATA_BITS_15
SSP_DATA_BITS_16
SSP_DATA_BITS_17
SSP_DATA_BITS_18
SSP_DATA_BITS_19
SSP_DATA_BITS_20
SSP_DATA_BITS_21
SSP_DATA_BITS_22
SSP_DATA_BITS_23
SSP_DATA_BITS_24
SSP_DATA_BITS_25
SSP_DATA_BITS_26
SSP_DATA_BITS_27
SSP_DATA_BITS_28
SSP_DATA_BITS_29
SSP_DATA_BITS_30
SSP_DATA_BITS_31
SSP_DATA_BITS_32

Definition at line 92 of file pl022.h.

enum ssp_duplex

enum ssp_duplex - whether Full/Half Duplex on microwire, only available in the ST Micro variant. : SSPTXD becomes bi-directional, SSPRXD not used : SSPTXD is an output, SSPRXD is an input.

Enumerator:

SSP_MICROWIRE_CHANNEL_FULL_DUPLEX
SSP_MICROWIRE_CHANNEL_HALF_DUPLEX

Definition at line 192 of file pl022.h.

enum ssp_hierarchy

enum ssp_hierarchy - whether SSP is configured as Master or Slave

Enumerator:

SSP_MASTER
SSP_SLAVE

Definition at line 58 of file pl022.h.

enum ssp_interface

enum ssp_interface - interfaces allowed for this SSP Controller : Motorola Interface : Texas Instrument Synchronous Serial interface : National Semiconductor Microwire interface : Unidirectional interface (STn8810 &STn8815 only)

Enumerator:

SSP_INTERFACE_MOTOROLA_SPI
SSP_INTERFACE_TI_SYNC_SERIAL
SSP_INTERFACE_NATIONAL_MICROWIRE
SSP_INTERFACE_UNIDIRECTIONAL

Definition at line 48 of file pl022.h.

enum ssp_loopback

whether SSP is in loopback mode or not

Enumerator:

LOOPBACK_DISABLED
LOOPBACK_ENABLED

Definition at line 33 of file pl022.h.

enum ssp_microwire_ctrl_len

Microwire Conrol Lengths Command size in microwire format

Enumerator:

SSP_BITS_4
SSP_BITS_5
SSP_BITS_6
SSP_BITS_7
SSP_BITS_8
SSP_BITS_9
SSP_BITS_10
SSP_BITS_11
SSP_BITS_12
SSP_BITS_13
SSP_BITS_14
SSP_BITS_15
SSP_BITS_16
SSP_BITS_17
SSP_BITS_18
SSP_BITS_19
SSP_BITS_20
SSP_BITS_21
SSP_BITS_22
SSP_BITS_23
SSP_BITS_24
SSP_BITS_25
SSP_BITS_26
SSP_BITS_27
SSP_BITS_28
SSP_BITS_29
SSP_BITS_30
SSP_BITS_31
SSP_BITS_32

Definition at line 161 of file pl022.h.

enum ssp_microwire_wait_state

enum Microwire Wait State : No wait state inserted after last command bit : One wait state inserted after last command bit

Enumerator:

SSP_MWIRE_WAIT_ZERO
SSP_MWIRE_WAIT_ONE

Definition at line 179 of file pl022.h.

enum ssp_mode

enum ssp_mode - SSP mode of operation (Communication modes)

Enumerator:

INTERRUPT_TRANSFER
POLLING_TRANSFER
DMA_TRANSFER

Definition at line 108 of file pl022.h.

enum ssp_rx_endian

enum ssp_rx_endian - endianess of Rx FIFO Data this feature is only available in ST versionf of PL022

Enumerator:

SSP_RX_MSB
SSP_RX_LSB

Definition at line 76 of file pl022.h.

enum ssp_rx_level_trig

enum ssp_rx_level_trig - receive FIFO watermark level which triggers IT: Interrupt fires when N or more elements in RX FIFO.

Enumerator:

SSP_RX_1_OR_MORE_ELEM
SSP_RX_4_OR_MORE_ELEM
SSP_RX_8_OR_MORE_ELEM
SSP_RX_16_OR_MORE_ELEM
SSP_RX_32_OR_MORE_ELEM

Definition at line 118 of file pl022.h.

enum ssp_spi_clk_phase

enum SPI Clock Phase - clock phase (Motorola SPI interface only) : Receive data on first edge transition (actual direction depends on polarity) : Receive data on second edge transition (actual direction depends on polarity)

Enumerator:

SSP_CLK_FIRST_EDGE
SSP_CLK_SECOND_EDGE

Definition at line 143 of file pl022.h.

enum ssp_spi_clk_pol

enum SPI Clock Polarity - clock polarity (Motorola SPI interface only) : Low inactive level : High inactive level

Enumerator:

SSP_CLK_POL_IDLE_LOW
SSP_CLK_POL_IDLE_HIGH

Definition at line 153 of file pl022.h.

enum ssp_tx_endian

enum ssp_tx_endian - endianess of Tx FIFO Data

Enumerator:

SSP_TX_MSB
SSP_TX_LSB

Definition at line 84 of file pl022.h.

enum ssp_tx_level_trig

Transmit FIFO watermark level which triggers (IT Interrupt fires when N or more empty locations in TX FIFO)

Enumerator:

SSP_TX_1_OR_MORE_EMPTY_LOC
SSP_TX_4_OR_MORE_EMPTY_LOC
SSP_TX_8_OR_MORE_EMPTY_LOC
SSP_TX_16_OR_MORE_EMPTY_LOC
SSP_TX_32_OR_MORE_EMPTY_LOC

Definition at line 130 of file pl022.h.