mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
79 lines
2.3 KiB
79 lines
2.3 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
|
#ifndef LINUX_MMC_IOCTL_H |
|
#define LINUX_MMC_IOCTL_H |
|
|
|
#include <linux/types.h> |
|
#include <linux/major.h> |
|
|
|
struct mmc_ioc_cmd { |
|
/* |
|
* Direction of data: nonzero = write, zero = read. |
|
* Bit 31 selects 'Reliable Write' for RPMB. |
|
*/ |
|
int write_flag; |
|
|
|
/* Application-specific command. true = precede with CMD55 */ |
|
int is_acmd; |
|
|
|
__u32 opcode; |
|
__u32 arg; |
|
__u32 response[4]; /* CMD response */ |
|
unsigned int flags; |
|
unsigned int blksz; |
|
unsigned int blocks; |
|
|
|
/* |
|
* Sleep at least postsleep_min_us useconds, and at most |
|
* postsleep_max_us useconds *after* issuing command. Needed for |
|
* some read commands for which cards have no other way of indicating |
|
* they're ready for the next command (i.e. there is no equivalent of |
|
* a "busy" indicator for read operations). |
|
*/ |
|
unsigned int postsleep_min_us; |
|
unsigned int postsleep_max_us; |
|
|
|
/* |
|
* Override driver-computed timeouts. Note the difference in units! |
|
*/ |
|
unsigned int data_timeout_ns; |
|
unsigned int cmd_timeout_ms; |
|
|
|
/* |
|
* For 64-bit machines, the next member, ``__u64 data_ptr``, wants to |
|
* be 8-byte aligned. Make sure this struct is the same size when |
|
* built for 32-bit. |
|
*/ |
|
__u32 __pad; |
|
|
|
/* DAT buffer */ |
|
__u64 data_ptr; |
|
}; |
|
#define mmc_ioc_cmd_set_data(ic, ptr) ic.data_ptr = (__u64)(unsigned long) ptr |
|
|
|
/** |
|
* struct mmc_ioc_multi_cmd - multi command information |
|
* @num_of_cmds: Number of commands to send. Must be equal to or less than |
|
* MMC_IOC_MAX_CMDS. |
|
* @cmds: Array of commands with length equal to 'num_of_cmds' |
|
*/ |
|
struct mmc_ioc_multi_cmd { |
|
__u64 num_of_cmds; |
|
struct mmc_ioc_cmd cmds[0]; |
|
}; |
|
|
|
#define MMC_IOC_CMD _IOWR(MMC_BLOCK_MAJOR, 0, struct mmc_ioc_cmd) |
|
/* |
|
* MMC_IOC_MULTI_CMD: Used to send an array of MMC commands described by |
|
* the structure mmc_ioc_multi_cmd. The MMC driver will issue all |
|
* commands in array in sequence to card. |
|
*/ |
|
#define MMC_IOC_MULTI_CMD _IOWR(MMC_BLOCK_MAJOR, 1, struct mmc_ioc_multi_cmd) |
|
/* |
|
* Since this ioctl is only meant to enhance (and not replace) normal access |
|
* to the mmc bus device, an upper data transfer limit of MMC_IOC_MAX_BYTES |
|
* is enforced per ioctl call. For larger data transfers, use the normal |
|
* block device operations. |
|
*/ |
|
#define MMC_IOC_MAX_BYTES (512L * 1024) |
|
#define MMC_IOC_MAX_CMDS 255 |
|
#endif /* LINUX_MMC_IOCTL_H */
|
|
|