spi-generic.c File Reference

#include <assert.h>
#include <commonlib/helpers.h>
#include <spi-generic.h>
#include <stddef.h>
#include <string.h>

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Functions
int	spi_claim_bus (const struct spi_slave *slave)
void	spi_release_bus (const struct spi_slave *slave)
static int	spi_xfer_single_op (const struct spi_slave *slave, struct spi_op *op)
static int	spi_xfer_vector_default (const struct spi_slave *slave, struct spi_op vectors[], size_t count)
int	spi_xfer_vector (const struct spi_slave *slave, struct spi_op vectors[], size_t count)
int	spi_xfer (const struct spi_slave *slave, const void *dout, size_t bytesout, void *din, size_t bytesin)
unsigned int	spi_crop_chunk (const struct spi_slave *slave, unsigned int cmd_len, unsigned int buf_len)
void __weak	spi_init (void)
int	spi_setup_slave (unsigned int bus, unsigned int cs, struct spi_slave *slave)

Function Documentation

spi_claim_bus()

int spi_claim_bus

(

const struct spi_slave *

slave

)

Definition at line 9 of file spi-generic.c.

References spi_ctrlr::claim_bus, spi_slave::ctrlr, and slave.

Referenced by crosec_spi_io(), do_dual_io_cmd(), do_dual_output_cmd(), do_spi_flash_cmd(), exynos_spi_read(), ich_hwseq_erase(), and spi_sdcard_enable_cs().

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spi_crop_chunk()

unsigned int spi_crop_chunk	(	const struct spi_slave *	slave,
		unsigned int	cmd_len,
		unsigned int	buf_len
	)

Definition at line 79 of file spi-generic.c.

References assert, BIOS_WARNING, spi_slave::ctrlr, spi_ctrlr::flags, spi_ctrlr::max_xfer_size, MIN, printk, slave, SPI_CNTRLR_DEDUCT_CMD_LEN, and SPI_CNTRLR_DEDUCT_OPCODE_LEN.

Referenced by spi_flash_cmd_read(), spi_flash_cmd_write_page_program(), and spiconsole_tx_byte().

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spi_init()

void __weak spi_init

(

void

)

Definition at line 117 of file spi-generic.c.

Referenced by boot_device_rw_init(), intel_pch_finalize_smm(), smi_handler(), smm_handler_start(), and spiconsole_init().

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spi_release_bus()

void spi_release_bus

(

const struct spi_slave *

slave

)

Definition at line 17 of file spi-generic.c.

References spi_slave::ctrlr, spi_ctrlr::release_bus, and slave.

Referenced by crosec_spi_io(), do_dual_io_cmd(), do_dual_output_cmd(), do_spi_flash_cmd(), exynos_spi_read(), ich_hwseq_erase(), and spi_sdcard_disable_cs().

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spi_setup_slave()

int spi_setup_slave	(	unsigned int	bus,
		unsigned int	cs,
		struct spi_slave *	slave
	)

Definition at line 122 of file spi-generic.c.

References BIOS_ERR, spi_slave::bus, spi_slave::cs, spi_slave::ctrlr, spi_ctrlr_buses::ctrlr, memset(), NULL, printk, spi_ctrlr::setup, slave, spi_ctrlr_bus_map, and spi_ctrlr_bus_map_count.

Referenced by boot_device_init(), google_chromeec_command(), spi_flash_probe(), spi_sdcard_init(), spiconsole_init(), tis_init(), and verstage_mainboard_init().

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spi_xfer()

int spi_xfer	(	const struct spi_slave *	slave,
		const void *	dout,
		size_t	bytesout,
		void *	din,
		size_t	bytesin
	)

Definition at line 68 of file spi-generic.c.

References spi_slave::ctrlr, slave, and spi_ctrlr::xfer.

Referenced by crosec_spi_io(), read_bytes(), spi_sdcard_recvbyte(), spi_sdcard_sendbyte(), spi_w8r8(), spiconsole_tx_byte(), and write_bytes().

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spi_xfer_single_op()

static int spi_xfer_single_op ( const struct spi_slave *  slave, struct spi_op *  op  )

static

Definition at line 24 of file spi-generic.c.

References spi_op::bytesin, spi_op::bytesout, spi_slave::ctrlr, spi_op::din, spi_op::dout, slave, SPI_OP_FAILURE, SPI_OP_SUCCESS, spi_op::status, and spi_ctrlr::xfer.

Referenced by spi_xfer_vector_default().

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spi_xfer_vector()

int spi_xfer_vector	(	const struct spi_slave *	slave,
		struct spi_op	vectors[],
		size_t	count
	)

Definition at line 57 of file spi-generic.c.

References count, spi_slave::ctrlr, slave, spi_xfer_vector_default(), and spi_ctrlr::xfer_vector.

Referenced by do_dual_io_cmd(), do_dual_output_cmd(), and do_spi_flash_cmd().

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spi_xfer_vector_default()

static int spi_xfer_vector_default ( const struct spi_slave *  slave, struct spi_op  vectors[], size_t  count  )

static

Definition at line 42 of file spi-generic.c.

References count, slave, and spi_xfer_single_op().

Referenced by spi_xfer_vector().

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