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Commit d8283ab4 authored by Siva Kumar Akkireddi's avatar Siva Kumar Akkireddi Committed by Siddartha Mohanadoss
Browse files

msm: mhi_dev: Add ADPL HW channel support in MHI driver 



Accelerated Data Path Logging channel is used to communicate
between host and modem using the IPA HW-accelerated path.

Change-Id: I649cbc136f404e44c78c6443d5586cbdeb0fd767
Signed-off-by: default avatarSiva Kumar Akkireddi <sivaa@codeaurora.org>
parent 711b668b

drivers/platform/msm/mhi_dev/mhi.c

+4 −2
Original line number Diff line number Diff line
@@ -46,7 +46,7 @@ 
#define MHI_RING_PRIMARY_EVT_ID		1

#define MHI_1K_SIZE			0x1000

/* Updated Specification for event start is NER - 2 and end - NER -1 */

#define MHI_HW_ACC_EVT_RING_START	2

#define MHI_HW_ACC_EVT_RING_START	3

#define MHI_HW_ACC_EVT_RING_END		1



#define MHI_HOST_REGION_NUM             2
@@ -843,7 +843,9 @@ static int mhi_hwc_chcmd(struct mhi_dev *mhi, uint chid, 
	case MHI_DEV_RING_EL_START:

		connect_params.channel_id = chid;

		connect_params.sys.skip_ep_cfg = true;

		if ((chid % 2) == 0x0)

		if (chid == MHI_CLIENT_ADPL_IN)

			connect_params.sys.client = IPA_CLIENT_MHI_DPL_CONS;

		else if ((chid % 2) == 0x0)

			connect_params.sys.client = IPA_CLIENT_MHI_PROD;

		else

			connect_params.sys.client = IPA_CLIENT_MHI_CONS;

drivers/platform/msm/mhi_dev/mhi_uci.c

+23 −0
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ 
#define MAX_UCI_WR_REQ			10

#define MAX_NR_TRBS_PER_CHAN		9

#define MHI_QTI_IFACE_ID		4

#define MHI_ADPL_IFACE_ID		5

#define DEVICE_NAME			"mhi"

#define MAX_DEVICE_NAME_SIZE		80
@@ -1374,6 +1375,28 @@ static long mhi_uci_client_ioctl(struct file *file, unsigned int cmd, 
		if (rc)

			return rc;

		rc = mhi_uci_ctrl_set_tiocm(uci_handle, tiocm);

	} else if (cmd == MHI_UCI_DPL_EP_LOOKUP) {

		uci_log(UCI_DBG_DBG, "DPL EP_LOOKUP for client:%d\n",

			uci_handle->client_index);

		epinfo.ph_ep_info.ep_type = DATA_EP_TYPE_PCIE;

		epinfo.ph_ep_info.peripheral_iface_id = MHI_ADPL_IFACE_ID;

		epinfo.ipa_ep_pair.prod_pipe_num =

			ipa_get_ep_mapping(IPA_CLIENT_MHI_DPL_CONS);

		/* For DPL set cons pipe to -1 to indicate it is unused */

		epinfo.ipa_ep_pair.cons_pipe_num = -1;



		uci_log(UCI_DBG_DBG, "client:%d ep_type:%d intf:%d\n",

			uci_handle->client_index,

			epinfo.ph_ep_info.ep_type,

			epinfo.ph_ep_info.peripheral_iface_id);



		uci_log(UCI_DBG_DBG, "DPL ipa_prod_idx:%d\n",

			epinfo.ipa_ep_pair.prod_pipe_num);



		rc = copy_to_user((void __user *)arg, &epinfo,

			sizeof(epinfo));

		if (rc)

			uci_log(UCI_DBG_ERROR, "copying to user space failed");

	} else {

		uci_log(UCI_DBG_ERROR, "wrong parameter:%d\n", cmd);

		rc = -EINVAL;

include/linux/msm_mhi_dev.h

+1 −0
Original line number Diff line number Diff line
@@ -132,6 +132,7 @@ enum mhi_client_channel { 
	MHI_CLIENT_RESERVED_1_UPPER = 99,

	MHI_CLIENT_IP_HW_0_OUT = 100,

	MHI_CLIENT_IP_HW_0_IN = 101,

	MHI_CLIENT_ADPL_IN = 102,

	MHI_CLIENT_RESERVED_2_LOWER = 102,

	MHI_CLIENT_RESERVED_2_UPPER = 127,

	MHI_MAX_CHANNELS = 102,

include/uapi/linux/mhi.h

+1 −0
Original line number Diff line number Diff line
@@ -32,5 +32,6 @@ struct ep_info { 
#define MHI_UCI_IOCTL_MAGIC	'm'



#define MHI_UCI_EP_LOOKUP _IOR(MHI_UCI_IOCTL_MAGIC, 2, struct ep_info)

#define MHI_UCI_DPL_EP_LOOKUP _IOR(MHI_UCI_IOCTL_MAGIC, 3, struct ep_info)



#endif /* _UAPI_MHI_H */