diff options
| author | David Howells <dhowells@redhat.com> | 2012-10-09 12:48:45 +0400 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-10-12 01:27:54 +0400 |
| commit | 60fe5771be6aa3f37d5887aa01c04f733130a559 (patch) | |
| tree | 6bdd6b1e682229a14cad915abdff704e5390088a /include/uapi/linux/mmc | |
| parent | 4c5bb2e42e6f12c02e6c8db9883ffa7602c68c19 (diff) | |
| download | linux-60fe5771be6aa3f37d5887aa01c04f733130a559.tar.xz | |
UAPI: (Scripted) Disintegrate include/linux/mmc
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include/uapi/linux/mmc')
| -rw-r--r-- | include/uapi/linux/mmc/Kbuild | 1 | ||||
| -rw-r--r-- | include/uapi/linux/mmc/ioctl.h | 57 |
2 files changed, 58 insertions, 0 deletions
diff --git a/include/uapi/linux/mmc/Kbuild b/include/uapi/linux/mmc/Kbuild index aafaa5aa54d4..8c1d2cb75e33 100644 --- a/include/uapi/linux/mmc/Kbuild +++ b/include/uapi/linux/mmc/Kbuild @@ -1 +1,2 @@ # UAPI Header export list +header-y += ioctl.h diff --git a/include/uapi/linux/mmc/ioctl.h b/include/uapi/linux/mmc/ioctl.h new file mode 100644 index 000000000000..1f5e68923929 --- /dev/null +++ b/include/uapi/linux/mmc/ioctl.h @@ -0,0 +1,57 @@ +#ifndef LINUX_MMC_IOCTL_H +#define LINUX_MMC_IOCTL_H + +#include <linux/types.h> + +struct mmc_ioc_cmd { + /* Implies direction of data. true = write, false = read */ + 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 + +#define MMC_IOC_CMD _IOWR(MMC_BLOCK_MAJOR, 0, struct mmc_ioc_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 * 256) +#endif /* LINUX_MMC_IOCTL_H */ |