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msm: ipa: Add IOCTL support to get ep_pair info

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For QMI dpm port to open, control manager needs
to know about usb/mhi ep details corresponding to
RMNET and RMNET_CV2X tethering.
IPA driver has all endpoint info at one place.
So provide IOCTL interface to get ep_pair info.

Change-Id: Ia5ec0df955ef7794ca992129dab538f65af36211
Signed-off-by: Akshay Pandit<pandit@codeaurora.org>
This commit is contained in:
Akshay Pandit
2019-06-13 16:16:59 +05:30
parent 7edf6fa629
commit a41942d70f
1 changed files with 230 additions and 0 deletions
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230
drivers/platform/msm/ipa/ipa_v3/ipa.c
View File

@@ -993,6 +993,169 @@ static void ipa3_gsb_msg_free_cb(void *buff, u32 len, u32 type)
kfree(buff);
}
static void ipa3_get_usb_ep_info(
struct ipa_ioc_get_ep_info *ep_info,
struct ipa_ep_pair_info *pair_info
)
{
int ep_index = -1, i;
ep_info->num_ep_pairs = 0;
for (i = 0; i < ep_info->max_ep_pairs; i++) {
pair_info[i].consumer_pipe_num = -1;
pair_info[i].producer_pipe_num = -1;
pair_info[i].ep_id = -1;
}
ep_index = ipa3_get_ep_mapping(IPA_CLIENT_USB_PROD);
if ((ep_index != -1) && ipa3_ctx->ep[ep_index].valid) {
pair_info[ep_info->num_ep_pairs].consumer_pipe_num = ep_index;
ep_index = ipa3_get_ep_mapping(IPA_CLIENT_USB_CONS);
if ((ep_index != -1) && (ipa3_ctx->ep[ep_index].valid)) {
pair_info[ep_info->num_ep_pairs].producer_pipe_num =
ep_index;
pair_info[ep_info->num_ep_pairs].ep_id =
IPA_USB0_EP_ID;
IPADBG("ep_pair_info consumer_pipe_num %d",
pair_info[ep_info->num_ep_pairs].consumer_pipe_num);
IPADBG(" producer_pipe_num %d ep_id %d\n",
pair_info[ep_info->num_ep_pairs].producer_pipe_num,
pair_info[ep_info->num_ep_pairs].ep_id);
ep_info->num_ep_pairs++;
} else {
pair_info[ep_info->num_ep_pairs].consumer_pipe_num = -1;
IPADBG("ep_pair_info consumer_pipe_num %d",
pair_info[ep_info->num_ep_pairs].consumer_pipe_num);
IPADBG(" producer_pipe_num %d ep_id %d\n",
pair_info[ep_info->num_ep_pairs].producer_pipe_num,
pair_info[ep_info->num_ep_pairs].ep_id);
}
}
ep_index = ipa3_get_ep_mapping(IPA_CLIENT_USB2_PROD);
if ((ep_index != -1) && ipa3_ctx->ep[ep_index].valid) {
pair_info[ep_info->num_ep_pairs].consumer_pipe_num = ep_index;
ep_index = ipa3_get_ep_mapping(IPA_CLIENT_USB2_CONS);
if ((ep_index != -1) && (ipa3_ctx->ep[ep_index].valid)) {
pair_info[ep_info->num_ep_pairs].producer_pipe_num =
ep_index;
pair_info[ep_info->num_ep_pairs].ep_id =
IPA_USB1_EP_ID;
IPADBG("ep_pair_info consumer_pipe_num %d",
pair_info[ep_info->num_ep_pairs].consumer_pipe_num);
IPADBG(" producer_pipe_num %d ep_id %d\n",
pair_info[ep_info->num_ep_pairs].producer_pipe_num,
pair_info[ep_info->num_ep_pairs].ep_id);
ep_info->num_ep_pairs++;
} else {
pair_info[ep_info->num_ep_pairs].consumer_pipe_num = -1;
IPADBG("ep_pair_info consumer_pipe_num %d",
pair_info[ep_info->num_ep_pairs].consumer_pipe_num);
IPADBG(" producer_pipe_num %d ep_id %d\n",
pair_info[ep_info->num_ep_pairs].producer_pipe_num,
pair_info[ep_info->num_ep_pairs].ep_id);
}
}
}
static void ipa3_get_pcie_ep_info(
struct ipa_ioc_get_ep_info *ep_info,
struct ipa_ep_pair_info *pair_info
)
{
int ep_index = -1, i;
ep_info->num_ep_pairs = 0;
for (i = 0; i < ep_info->max_ep_pairs; i++) {
pair_info[i].consumer_pipe_num = -1;
pair_info[i].producer_pipe_num = -1;
pair_info[i].ep_id = -1;
}
ep_index = ipa3_get_ep_mapping(IPA_CLIENT_MHI_PROD);
if ((ep_index != -1) && ipa3_ctx->ep[ep_index].valid) {
pair_info[ep_info->num_ep_pairs].consumer_pipe_num = ep_index;
ep_index = ipa3_get_ep_mapping(IPA_CLIENT_MHI_CONS);
if ((ep_index != -1) && (ipa3_ctx->ep[ep_index].valid)) {
pair_info[ep_info->num_ep_pairs].producer_pipe_num =
ep_index;
pair_info[ep_info->num_ep_pairs].ep_id =
IPA_PCIE0_EP_ID;
IPADBG("ep_pair_info consumer_pipe_num %d",
pair_info[ep_info->num_ep_pairs].consumer_pipe_num);
IPADBG(" producer_pipe_num %d ep_id %d\n",
pair_info[ep_info->num_ep_pairs].producer_pipe_num,
pair_info[ep_info->num_ep_pairs].ep_id);
ep_info->num_ep_pairs++;
} else {
pair_info[ep_info->num_ep_pairs].consumer_pipe_num = -1;
IPADBG("ep_pair_info consumer_pipe_num %d",
pair_info[ep_info->num_ep_pairs].consumer_pipe_num);
IPADBG(" producer_pipe_num %d ep_id %d\n",
pair_info[ep_info->num_ep_pairs].producer_pipe_num,
pair_info[ep_info->num_ep_pairs].ep_id);
}
}
ep_index = ipa3_get_ep_mapping(IPA_CLIENT_MHI2_PROD);
if ((ep_index != -1) && ipa3_ctx->ep[ep_index].valid) {
pair_info[ep_info->num_ep_pairs].consumer_pipe_num = ep_index;
ep_index = ipa3_get_ep_mapping(IPA_CLIENT_MHI2_CONS);
if ((ep_index != -1) && (ipa3_ctx->ep[ep_index].valid)) {
pair_info[ep_info->num_ep_pairs].producer_pipe_num =
ep_index;
pair_info[ep_info->num_ep_pairs].ep_id =
IPA_PCIE1_EP_ID;
IPADBG("ep_pair_info consumer_pipe_num %d",
pair_info[ep_info->num_ep_pairs].consumer_pipe_num);
IPADBG(" producer_pipe_num %d ep_id %d\n",
pair_info[ep_info->num_ep_pairs].producer_pipe_num,
pair_info[ep_info->num_ep_pairs].ep_id);
ep_info->num_ep_pairs++;
} else {
pair_info[ep_info->num_ep_pairs].consumer_pipe_num = -1;
IPADBG("ep_pair_info consumer_pipe_num %d",
pair_info[ep_info->num_ep_pairs].consumer_pipe_num);
IPADBG(" producer_pipe_num %d ep_id %d\n",
pair_info[ep_info->num_ep_pairs].producer_pipe_num,
pair_info[ep_info->num_ep_pairs].ep_id);
}
}
}
static int ipa3_get_ep_info(struct ipa_ioc_get_ep_info *ep_info,
u8 *param)
{
int ret = 0;
struct ipa_ep_pair_info *pair_info = (struct ipa_ep_pair_info *)param;
switch (ep_info->ep_type) {
case IPA_DATA_EP_TYP_HSUSB:
ipa3_get_usb_ep_info(ep_info, pair_info);
break;
case IPA_DATA_EP_TYP_PCIE:
ipa3_get_pcie_ep_info(ep_info, pair_info);
break;
default:
IPAERR_RL("Undefined ep_type %d\n", ep_info->ep_type);
ret = -EFAULT;
break;
}
return ret;
}
static int ipa3_send_gsb_msg(unsigned long usr_param, uint8_t msg_type)
{
int retval;
@@ -1959,6 +2122,8 @@ static long ipa3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
size_t sz;
int pre_entry;
int hdl;
unsigned long uptr = 0;
struct ipa_ioc_get_ep_info ep_info;
IPADBG("cmd=%x nr=%d\n", cmd, _IOC_NR(cmd));
@@ -3179,6 +3344,71 @@ static long ipa3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
}
break;
case IPA_IOC_GET_PHERIPHERAL_EP_INFO:
IPADBG("Got IPA_IOC_GET_EP_INFO\n");
if (ipa3_ctx->ipa_config_is_auto == false) {
IPADBG("not an auto config: returning error\n");
retval = -ENOTTY;
break;
}
if (copy_from_user(&ep_info, (const void __user *)arg,
sizeof(struct ipa_ioc_get_ep_info))) {
IPAERR_RL("copy_from_user fails\n");
retval = -EFAULT;
break;
}
if (ep_info.max_ep_pairs != QUERY_MAX_EP_PAIRS) {
IPAERR_RL("unexpected max_ep_pairs %d\n",
ep_info.max_ep_pairs);
retval = -EFAULT;
break;
}
if (ep_info.ep_pair_size !=
(QUERY_MAX_EP_PAIRS * sizeof(struct ipa_ep_pair_info))) {
IPAERR_RL("unexpected ep_pair_size %d\n",
ep_info.max_ep_pairs);
retval = -EFAULT;
break;
}
uptr = ep_info.info;
if (unlikely(!uptr)) {
IPAERR_RL("unexpected NULL info\n");
retval = -EFAULT;
break;
}
param = kzalloc(ep_info.ep_pair_size, GFP_KERNEL);
if (!param) {
IPAERR_RL("kzalloc fails\n");
retval = -ENOMEM;
break;
}
retval = ipa3_get_ep_info(&ep_info, param);
if (retval < 0) {
IPAERR("ipa3_get_ep_info failed\n");
retval = -EFAULT;
break;
}
if (copy_to_user((void __user *)uptr, param,
ep_info.ep_pair_size)) {
IPAERR_RL("copy_to_user fails\n");
retval = -EFAULT;
break;
}
if (copy_to_user((void __user *)arg, &ep_info,
sizeof(struct ipa_ioc_get_ep_info))) {
IPAERR_RL("copy_to_user fails\n");
retval = -EFAULT;
break;
}
break;
default:
IPA_ACTIVE_CLIENTS_DEC_SIMPLE();
return -ENOTTY;