#include <barrier.h>
#include <io.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <types.h>
#include <log.h>
#include <timer.h>
#include <mmu.h>
#include <cache.h>
#include <sys-clk.h>
#include <sys-gpio.h>
#include <mmc/sys-mmc.h>
#include <mmc/sys-sdhci.h>

Include dependency graph for sys-sdhci.c:

Functions
static void	sunxi_sdhci_sync_all_cache (void)

static int	sunxi_sdhci_clk_enable (sunxi_sdhci_t *sdhci)
	Enable clock for the SDHC controller.

static int	sunxi_sdhci_update_clk (sunxi_sdhci_t *sdhci)
	Update clock for the SDHC controller.

static int	sunxi_sdhci_get_timing_config_timing_4 (sunxi_sdhci_t *sdhci, const uint32_t spd_md_id, const uint32_t freq_id)
	Calculate the timing configuration for Sunxi SD Host Controller using timing mode 4.

static int	sunxi_sdhci_get_timing_config (sunxi_sdhci_t *sdhci, uint32_t spd_md_id, uint32_t freq_id)
	Get the timing configuration for the Sunxi SD Host Controller.

static int	sunxi_sdhci_config_delay (sunxi_sdhci_t *sdhci, uint32_t spd_md_id, uint32_t freq_id)
	Configure delay for the Sunxi SD Host Controller.

int	sunxi_sdhci_clock_mode (sunxi_sdhci_t *sdhci, uint32_t clk)
	Set the clock mode for the SDHC controller based on timing mode and other parameters.

static int	sunxi_sdhci_config_clock (sunxi_sdhci_t *sdhci, uint32_t clk)
	Configure the clock for the SDHC controller.

static void	sunxi_sdhci_ddr_mode_set (sunxi_sdhci_t *sdhci, bool status)
	Set DDR mode for the SDHC controller.

static void	sunxi_sdhci_hs400_mode_set (sunxi_sdhci_t *sdhci, bool status)
	Set HS400 mode for the SDHC controller.

static void	sunxi_sdhci_pin_config (sunxi_sdhci_t *sdhci)
	Configure GPIO pins for the SDHC controller.

static int	sunxi_sunxi_sdhci_trans_data_cpu (sunxi_sdhci_t sdhci, mmc_data_t data)
	Transfer data between SDHC controller and host CPU.

static int	sunxi_sunxi_sdhci_trans_data_dma (sunxi_sdhci_t sdhci, mmc_data_t data)
	Transfer data between SDHC controller and host CPU using DMA.

void	sunxi_sdhci_set_ios (sunxi_sdhci_t *sdhci)
	Set the I/O settings for the SDHC controller.

int	sunxi_sdhci_core_init (sunxi_sdhci_t *sdhci)
	Initialize the core functionality of the SDHC controller.

int	sunxi_sdhci_xfer (sunxi_sdhci_t sdhci, mmc_cmd_t cmd, mmc_data_t *data)
	Perform a data transfer operation on the SDHC controller.

int	sunxi_sdhci_update_phase (sunxi_sdhci_t *sdhci)
	Update phase for the SDHC controller.

int	sunxi_sdhci_init (sunxi_sdhci_t *sdhci)
	Initialize the SDHC controller.

void	sunxi_sdhci_dump_reg (sunxi_sdhci_t *sdhci)
	Dump the contents of the SDHCI registers.

Variables
sunxi_sdhci_host_t	g_mmc_host

sunxi_sdhci_timing_t	g_mmc_timing

mmc_t	g_mmc

Function Documentation

◆ sunxi_sdhci_clk_enable()

static int sunxi_sdhci_clk_enable ( sunxi_sdhci_t * sdhci )

static

Enable clock for the SDHC controller.

This function enables clock for the specified SDHC controller.

Parameters

sdhci Pointer to the SDHC controller structure.

Returns: Returns 0 on success.

◆ sunxi_sdhci_clock_mode()

int sunxi_sdhci_clock_mode	(	sunxi_sdhci_t *	sdhci,
		uint32_t	clk
	)

Set the clock mode for the SDHC controller based on timing mode and other parameters.

This function sets the clock mode for the SDHC controller based on the timing mode and other parameters.

Parameters

sdhci	Pointer to the SDHC controller structure.
clk	Clock frequency.

Returns: 0 on success, -1 on failure.

◆ sunxi_sdhci_config_clock()

static int sunxi_sdhci_config_clock	(	sunxi_sdhci_t *	sdhci,
		uint32_t	clk
	)

static

Configure the clock for the SDHC controller.

This function configures the clock for the SDHC controller based on the specified clock frequency and other parameters.

Parameters

sdhci	Pointer to the SDHC controller structure.
clk	Clock frequency.

Returns: 0 on success, -1 on failure.

◆ sunxi_sdhci_config_delay()

static int sunxi_sdhci_config_delay	(	sunxi_sdhci_t *	sdhci,
		uint32_t	spd_md_id,
		uint32_t	freq_id
	)

static

Configure delay for the Sunxi SD Host Controller.

This function configures the delay settings for the Sunxi SD Host Controller based on the provided parameters.

Parameters

sdhci	Pointer to the Sunxi SD Host Controller instance
spd_md_id	Speed mode ID
freq_id	Frequency ID

Returns: Returns 0 on success, or an error code if the operation fails

◆ sunxi_sdhci_core_init()

int sunxi_sdhci_core_init ( sunxi_sdhci_t * sdhci )

Initialize the core functionality of the SDHC controller.

This function initializes the core functionality of the SDHC controller, including resetting the controller, setting timeout values, configuring thresholds and debug parameters, and releasing the eMMC reset signal.

Parameters

sdhci Pointer to the SDHC controller structure.

Returns: Returns 0 on success, -1 on failure.

◆ sunxi_sdhci_ddr_mode_set()

static void sunxi_sdhci_ddr_mode_set	(	sunxi_sdhci_t *	sdhci,
		bool	status
	)

static

Set DDR mode for the SDHC controller.

This function sets the DDR mode for the SDHC controller based on the specified status.

Parameters

sdhci	Pointer to the SDHC controller structure.
status	Boolean indicating whether to enable (true) or disable (false) DDR mode.

◆ sunxi_sdhci_dump_reg()

void sunxi_sdhci_dump_reg ( sunxi_sdhci_t * sdhci )

Dump the contents of the SDHCI registers.

This function dumps the contents of the SDHCI registers for a given SD card host controller.

Parameters

sdhci A pointer to the structure representing the SD card host controller.

Returns: void

Note: This function is useful for debugging and analyzing the state of the SD card controller.

◆ sunxi_sdhci_get_timing_config()

static int sunxi_sdhci_get_timing_config	(	sunxi_sdhci_t *	sdhci,
		uint32_t	spd_md_id,
		uint32_t	freq_id
	)

static

Get the timing configuration for the Sunxi SD Host Controller.

This function retrieves the timing configuration for the Sunxi SD Host Controller based on the provided parameters.

Parameters

sdhci	Pointer to the Sunxi SD Host Controller instance
spd_md_id	Speed mode ID
freq_id	Frequency ID

Returns: Returns 0 on success, or an error code if the operation fails

◆ sunxi_sdhci_get_timing_config_timing_4()

static int sunxi_sdhci_get_timing_config_timing_4	(	sunxi_sdhci_t *	sdhci,
		const uint32_t	spd_md_id,
		const uint32_t	freq_id
	)

static

Calculate the timing configuration for Sunxi SD Host Controller using timing mode 4.

This function calculates the timing configuration for the Sunxi SD Host Controller when operating in timing mode 4 based on the speed mode and frequency. It updates the timing data with the calculated delay.

Parameters

sdhci	A pointer to the Sunxi SD Host Controller structure.
spd_md_id	The speed mode ID.
freq_id	The frequency ID.

Returns: 0 on success, -1 on failure.

◆ sunxi_sdhci_hs400_mode_set()

static void sunxi_sdhci_hs400_mode_set	(	sunxi_sdhci_t *	sdhci,
		bool	status
	)

static

Set HS400 mode for the SDHC controller.

This function sets the HS400 mode for the SDHC controller based on the specified status.

Parameters

sdhci	Pointer to the SDHC controller structure.
status	Boolean indicating whether to enable (true) or disable (false) HS400 mode.

◆ sunxi_sdhci_init()

int sunxi_sdhci_init ( sunxi_sdhci_t * sdhci )

Initialize the SDHC controller.

This function initializes the SDHC controller by configuring its parameters, capabilities, and features based on the provided SDHC structure. It sets up the controller's timing mode, supported voltages, host capabilities, clock frequency limits, and register addresses. Additionally, it configures pin settings and enables clocks for the SDHC controller.

Parameters

sdhci Pointer to the SDHC structure.

Returns: Returns 0 on success, -1 on failure.

◆ sunxi_sdhci_pin_config()

static void sunxi_sdhci_pin_config ( sunxi_sdhci_t * sdhci )

static

Configure GPIO pins for the SDHC controller.

This function initializes and configures the GPIO pins used by the SDHC controller based on the provided configuration.

Parameters

sdhci Pointer to the SDHC controller structure.

◆ sunxi_sdhci_set_ios()

void sunxi_sdhci_set_ios ( sunxi_sdhci_t * sdhci )

Set the I/O settings for the SDHC controller.

This function configures the I/O settings for the SDHC controller based on the provided MMC clock, bus width, and speed mode.

Parameters

sdhci Pointer to the SDHC controller structure.

Returns: void

◆ sunxi_sdhci_sync_all_cache()

static void sunxi_sdhci_sync_all_cache ( void )

static

◆ sunxi_sdhci_update_clk()

static int sunxi_sdhci_update_clk ( sunxi_sdhci_t * sdhci )

static

Update clock for the SDHC controller.

This function updates the clock for the specified SDHC controller.

Parameters

sdhci Pointer to the SDHC controller structure.

Returns: Returns 0 on success, -1 on failure.

◆ sunxi_sdhci_update_phase()

int sunxi_sdhci_update_phase ( sunxi_sdhci_t * sdhci )

Update phase for the SDHC controller.

This function updates the phase for the specified SDHC controller.

Parameters

sdhci Pointer to the SDHC controller structure.

Returns: Returns 0 on success.

◆ sunxi_sdhci_xfer()

int sunxi_sdhci_xfer	(	sunxi_sdhci_t *	sdhci,
		mmc_cmd_t *	cmd,
		mmc_data_t *	data
	)

Perform a data transfer operation on the SDHC controller.

This function performs a data transfer operation on the SDHC controller, including sending a command and managing data transfer if present. It also handles error conditions such as fatal errors and card busy status.

Parameters

sdhci	Pointer to the SDHC controller structure.
cmd	Pointer to the MMC command structure.
data	Pointer to the MMC data structure.

Returns: Returns 0 on success, -1 on failure.

◆ sunxi_sunxi_sdhci_trans_data_cpu()

static int sunxi_sunxi_sdhci_trans_data_cpu	(	sunxi_sdhci_t *	sdhci,
		mmc_data_t *	data
	)

static

Transfer data between SDHC controller and host CPU.

This function handles the data transfer between the SDHC controller and the host CPU.

Parameters

sdhci	Pointer to the SDHC controller structure.
data	Pointer to the MMC data structure containing transfer information.

Returns: 0 on success, -1 on failure.

◆ sunxi_sunxi_sdhci_trans_data_dma()

static int sunxi_sunxi_sdhci_trans_data_dma	(	sunxi_sdhci_t *	sdhci,
		mmc_data_t *	data
	)

static

Transfer data between SDHC controller and host CPU using DMA.

This function handles the data transfer between the SDHC controller and the host CPU using Direct Memory Access (DMA).

Parameters

sdhci	Pointer to the SDHC controller structure.
data	Pointer to the MMC data structure containing transfer information.

Returns: void

Variable Documentation

◆ g_mmc

mmc_t g_mmc

◆ g_mmc_host

sunxi_sdhci_host_t g_mmc_host

◆ g_mmc_timing

sunxi_sdhci_timing_t g_mmc_timing

Functions

Variables

Function Documentation

◆ sunxi_sdhci_clk_enable()

◆ sunxi_sdhci_clock_mode()

◆ sunxi_sdhci_config_clock()

◆ sunxi_sdhci_config_delay()

◆ sunxi_sdhci_core_init()

◆ sunxi_sdhci_ddr_mode_set()

◆ sunxi_sdhci_dump_reg()

◆ sunxi_sdhci_get_timing_config()

◆ sunxi_sdhci_get_timing_config_timing_4()

◆ sunxi_sdhci_hs400_mode_set()

◆ sunxi_sdhci_init()

◆ sunxi_sdhci_pin_config()

◆ sunxi_sdhci_set_ios()

◆ sunxi_sdhci_sync_all_cache()

◆ sunxi_sdhci_update_clk()

◆ sunxi_sdhci_update_phase()

◆ sunxi_sdhci_xfer()

◆ sunxi_sunxi_sdhci_trans_data_cpu()

◆ sunxi_sunxi_sdhci_trans_data_dma()

Variable Documentation

◆ g_mmc

◆ g_mmc_host

◆ g_mmc_timing