/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

[0] Fix | Delete

#ifndef LINUX_MMC_IOCTL_H

[1] Fix | Delete

#define LINUX_MMC_IOCTL_H

[2] Fix | Delete

[3] Fix | Delete

#include <linux/types.h>

[4] Fix | Delete

[5] Fix | Delete

struct mmc_ioc_cmd {

[6] Fix | Delete

/* Implies direction of data. true = write, false = read */

[7] Fix | Delete

int write_flag;

[8] Fix | Delete

[9] Fix | Delete

/* Application-specific command. true = precede with CMD55 */

[10] Fix | Delete

int is_acmd;

[11] Fix | Delete

[12] Fix | Delete

__u32 opcode;

[13] Fix | Delete

__u32 arg;

[14] Fix | Delete

__u32 response[4]; /* CMD response */

[15] Fix | Delete

unsigned int flags;

[16] Fix | Delete

unsigned int blksz;

[17] Fix | Delete

unsigned int blocks;

[18] Fix | Delete

[19] Fix | Delete

/*

[20] Fix | Delete

* Sleep at least postsleep_min_us useconds, and at most

[21] Fix | Delete

* postsleep_max_us useconds *after* issuing command. Needed for

[22] Fix | Delete

* some read commands for which cards have no other way of indicating

[23] Fix | Delete

* they're ready for the next command (i.e. there is no equivalent of

[24] Fix | Delete

* a "busy" indicator for read operations).

[25] Fix | Delete

*/

[26] Fix | Delete

unsigned int postsleep_min_us;

[27] Fix | Delete

unsigned int postsleep_max_us;

[28] Fix | Delete

[29] Fix | Delete

/*

[30] Fix | Delete

* Override driver-computed timeouts. Note the difference in units!

[31] Fix | Delete

*/

[32] Fix | Delete

unsigned int data_timeout_ns;

[33] Fix | Delete

unsigned int cmd_timeout_ms;

[34] Fix | Delete

[35] Fix | Delete

/*

[36] Fix | Delete

* For 64-bit machines, the next member, ``__u64 data_ptr``, wants to

[37] Fix | Delete

* be 8-byte aligned. Make sure this struct is the same size when

[38] Fix | Delete

* built for 32-bit.

[39] Fix | Delete

*/

[40] Fix | Delete

__u32 __pad;

[41] Fix | Delete

[42] Fix | Delete

/* DAT buffer */

[43] Fix | Delete

__u64 data_ptr;

[44] Fix | Delete

};

[45] Fix | Delete

#define mmc_ioc_cmd_set_data(ic, ptr) ic.data_ptr = (__u64)(unsigned long) ptr

[46] Fix | Delete

[47] Fix | Delete

/**

[48] Fix | Delete

* struct mmc_ioc_multi_cmd - multi command information

[49] Fix | Delete

* @num_of_cmds: Number of commands to send. Must be equal to or less than

[50] Fix | Delete

* MMC_IOC_MAX_CMDS.

[51] Fix | Delete

* @cmds: Array of commands with length equal to 'num_of_cmds'

[52] Fix | Delete

*/

[53] Fix | Delete

struct mmc_ioc_multi_cmd {

[54] Fix | Delete

__u64 num_of_cmds;

[55] Fix | Delete

struct mmc_ioc_cmd cmds[0];

[56] Fix | Delete

};

[57] Fix | Delete

[58] Fix | Delete

#define MMC_IOC_CMD _IOWR(MMC_BLOCK_MAJOR, 0, struct mmc_ioc_cmd)

[59] Fix | Delete

/*

[60] Fix | Delete

* MMC_IOC_MULTI_CMD: Used to send an array of MMC commands described by

[61] Fix | Delete

* the structure mmc_ioc_multi_cmd. The MMC driver will issue all

[62] Fix | Delete

* commands in array in sequence to card.

[63] Fix | Delete

*/

[64] Fix | Delete

#define MMC_IOC_MULTI_CMD _IOWR(MMC_BLOCK_MAJOR, 1, struct mmc_ioc_multi_cmd)

[65] Fix | Delete

/*

[66] Fix | Delete

* Since this ioctl is only meant to enhance (and not replace) normal access

[67] Fix | Delete

* to the mmc bus device, an upper data transfer limit of MMC_IOC_MAX_BYTES

[68] Fix | Delete

* is enforced per ioctl call. For larger data transfers, use the normal

[69] Fix | Delete

* block device operations.

[70] Fix | Delete

*/

[71] Fix | Delete

#define MMC_IOC_MAX_BYTES (512L * 1024)

[72] Fix | Delete

#define MMC_IOC_MAX_CMDS 255

[73] Fix | Delete

#endif /* LINUX_MMC_IOCTL_H */

[74] Fix | Delete

[75] Fix | Delete