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msm: ipa: add ioctl to get ipa hw version 

Add ioctl for user space to get ipa hw version

Change-Id: Iba207623126f641324fbcf174bddd46552f489de
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
This commit is contained in:
Skylar Chang 2015-09-02 17:31:24 -07:00 committed by syphyr
parent 50dca023e9
commit 987c28ae62
2 changed files with 18 additions and 1 deletions
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12
drivers/platform/msm/ipa/ipa.c
View File

@ -1241,6 +1241,18 @@ static long ipa_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
break;
}
break;
case IPA_IOC_GET_HW_VERSION:
pyld_sz = sizeof(enum ipa_hw_type);
param = kzalloc(pyld_sz, GFP_KERNEL);
if (!param) {
retval = -ENOMEM;
break;
}
memcpy(param, &ipa_ctx->ipa_hw_type, pyld_sz);
if (copy_to_user((u8 *)arg, param, pyld_sz)) {
retval = -EFAULT;
break;
}
default: /* redundant, as cmd was checked against MAXNR */
ipa_dec_client_disable_clks();

7
include/uapi/linux/msm_ipa.h
View File

@ -66,7 +66,8 @@
#define IPA_IOCTL_DEL_HDR_PROC_CTX 41
#define IPA_IOCTL_MDFY_RT_RULE 42
#define IPA_IOCTL_NAT_MODIFY_PDN 43
#define IPA_IOCTL_MAX 44
#define IPA_IOCTL_GET_HW_VERSION 44
#define IPA_IOCTL_MAX 45
/**
* max size of the header to be inserted
@ -1528,6 +1529,10 @@ enum ipacm_client_enum {
IPA_IOCTL_DEL_HDR_PROC_CTX, \
struct ipa_ioc_del_hdr_proc_ctx *)
#define IPA_IOC_GET_HW_VERSION _IOWR(IPA_IOC_MAGIC, \
IPA_IOCTL_GET_HW_VERSION, \
enum ipa_hw_type *)
/*
* unique magic number of the Tethering bridge ioctls
*/