58 lines
2.2 KiB
C
58 lines
2.2 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
#ifndef __PLATFORM_DATA_SDHCI_S3C_H
|
||
|
|
#define __PLATFORM_DATA_SDHCI_S3C_H
|
||
|
|
|
||
|
|
struct platform_device;
|
||
|
|
|
||
|
|
enum cd_types {
|
||
|
|
S3C_SDHCI_CD_INTERNAL, /* use mmc internal CD line */
|
||
|
|
S3C_SDHCI_CD_EXTERNAL, /* use external callback */
|
||
|
|
S3C_SDHCI_CD_GPIO, /* use external gpio pin for CD line */
|
||
|
|
S3C_SDHCI_CD_NONE, /* no CD line, use polling to detect card */
|
||
|
|
S3C_SDHCI_CD_PERMANENT, /* no CD line, card permanently wired to host */
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* struct s3c_sdhci_platdata() - Platform device data for Samsung SDHCI
|
||
|
|
* @max_width: The maximum number of data bits supported.
|
||
|
|
* @host_caps: Standard MMC host capabilities bit field.
|
||
|
|
* @host_caps2: The second standard MMC host capabilities bit field.
|
||
|
|
* @cd_type: Type of Card Detection method (see cd_types enum above)
|
||
|
|
* @ext_cd_init: Initialize external card detect subsystem. Called on
|
||
|
|
* sdhci-s3c driver probe when cd_type == S3C_SDHCI_CD_EXTERNAL.
|
||
|
|
* notify_func argument is a callback to the sdhci-s3c driver
|
||
|
|
* that triggers the card detection event. Callback arguments:
|
||
|
|
* dev is pointer to platform device of the host controller,
|
||
|
|
* state is new state of the card (0 - removed, 1 - inserted).
|
||
|
|
* @ext_cd_cleanup: Cleanup external card detect subsystem. Called on
|
||
|
|
* sdhci-s3c driver remove when cd_type == S3C_SDHCI_CD_EXTERNAL.
|
||
|
|
* notify_func argument is the same callback as for ext_cd_init.
|
||
|
|
* @ext_cd_gpio: gpio pin used for external CD line, valid only if
|
||
|
|
* cd_type == S3C_SDHCI_CD_GPIO
|
||
|
|
* @ext_cd_gpio_invert: invert values for external CD gpio line
|
||
|
|
* @cfg_gpio: Configure the GPIO for a specific card bit-width
|
||
|
|
*
|
||
|
|
* Initialisation data specific to either the machine or the platform
|
||
|
|
* for the device driver to use or call-back when configuring gpio or
|
||
|
|
* card speed information.
|
||
|
|
*/
|
||
|
|
struct s3c_sdhci_platdata {
|
||
|
|
unsigned int max_width;
|
||
|
|
unsigned int host_caps;
|
||
|
|
unsigned int host_caps2;
|
||
|
|
unsigned int pm_caps;
|
||
|
|
enum cd_types cd_type;
|
||
|
|
|
||
|
|
int ext_cd_gpio;
|
||
|
|
bool ext_cd_gpio_invert;
|
||
|
|
int (*ext_cd_init)(void (*notify_func)(struct platform_device *,
|
||
|
|
int state));
|
||
|
|
int (*ext_cd_cleanup)(void (*notify_func)(struct platform_device *,
|
||
|
|
int state));
|
||
|
|
|
||
|
|
void (*cfg_gpio)(struct platform_device *dev, int width);
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* __PLATFORM_DATA_SDHCI_S3C_H */
|