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Commit 60d292b4 authored by Mohammed Javid's avatar Mohammed Javid Committed by Akshay Pandit
Browse files

msm: ipa: Add IOCTL support to get ep_pair info 



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: default avatarMohammed Javid <mjavid@codeaurora.org>
parent 2462a36a

drivers/platform/msm/ipa/ipa_v3/ipa.c

+220 −0
Original line number Diff line number Diff line
@@ -645,6 +645,169 @@ 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;
@@ -719,6 +882,7 @@ static long ipa3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
	size_t sz;

	int pre_entry;

	int hdl;

	struct ipa_ioc_get_ep_info ep_info;



	IPADBG("cmd=%x nr=%d\n", cmd, _IOC_NR(cmd));
@@ -2677,6 +2841,62 @@ 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)

			return -ENOTTY;

		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);



		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);



		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;

include/uapi/linux/msm_ipa.h

+45 −0
Original line number Diff line number Diff line
@@ -123,6 +123,7 @@ 
#define IPA_IOCTL_FNR_COUNTER_DEALLOC           75

#define IPA_IOCTL_FNR_COUNTER_QUERY             76

#define IPA_IOCTL_GET_NAT_IN_SRAM_INFO          77

#define IPA_IOCTL_GET_PHERIPHERAL_EP_INFO       78



/**

 * max size of the header to be inserted
@@ -2247,6 +2248,46 @@ struct ipa_ioc_gsb_info { 
	char name[IPA_RESOURCE_NAME_MAX];

};



#define QUERY_MAX_EP_PAIRS	2



#define IPA_USB0_EP_ID		11

#define IPA_USB1_EP_ID		12



#define IPA_PCIE0_EP_ID		21

#define IPA_PCIE1_EP_ID		22



enum ipa_peripheral_ep_type {

	IPA_DATA_EP_TYP_RESERVED = 0,

	IPA_DATA_EP_TYP_HSIC = 1,

	IPA_DATA_EP_TYP_HSUSB = 2,

	IPA_DATA_EP_TYP_PCIE = 3,

	IPA_DATA_EP_TYP_EMBEDDED = 4,

	IPA_DATA_EP_TYP_BAM_DMUX,

};



struct ipa_ep_pair_info {

	uint32_t consumer_pipe_num;

	uint32_t producer_pipe_num;

	uint32_t ep_id;

};



/**

 * struct ipa_ioc_get_ep_info - query usb/pcie ep info

 * @ep_type: type USB/PCIE - i/p param

 * @max_ep_pairs: max number of ep_pairs (constant),

					(QUERY_MAX_EP_PAIRS)

 * @num_ep_pairs: number of ep_pairs - o/p param

 * @ep_pair_size: sizeof(ipa_ep_pair_info) * max_ep_pairs

 * @info: structure contains ep pair info

 */

struct ipa_ioc_get_ep_info {

	enum ipa_peripheral_ep_type ep_type;

	uint8_t max_ep_pairs;

	uint8_t num_ep_pairs;

	uint32_t ep_pair_size;

	uintptr_t info;

};



/**

 * struct ipa_ioc_wigig_fst_switch - switch between wigig and wlan

 * @netdev_name: wigig interface name
@@ -2838,6 +2879,10 @@ struct ipa_odl_modem_config { 
				IPA_IOCTL_GET_NAT_IN_SRAM_INFO, \

				struct ipa_nat_in_sram_info)



#define IPA_IOC_GET_PHERIPHERAL_EP_INFO _IOWR(IPA_IOC_MAGIC, \

				IPA_IOCTL_GET_PHERIPHERAL_EP_INFO, \

				struct ipa_ioc_get_ep_info)



/*

 * unique magic number of the Tethering bridge ioctls

 */