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Commit 177f6b10 authored by Siddartha Mohanadoss's avatar Siddartha Mohanadoss
Browse files

msm: mhi_dev: Update uevents for MHI UCI channels 



Expose both the MHI channel pairs for the current
state whether its connected, disconnected. It allows
clients to be aware of the individual channel states
so it can issue an open once both the channels are
available.

Change-Id: I752b23ba6ea516a78c25ee0f6b125a41788a5885
Signed-off-by: default avatarSiddartha Mohanadoss <smohanad@codeaurora.org>
parent 432c6504

drivers/platform/msm/mhi_dev/mhi_uci.c

+32 −39
Original line number Diff line number Diff line
@@ -163,7 +163,10 @@ static const struct chan_attr uci_chan_attr_table[] = { 
		MAX_NR_TRBS_PER_CHAN,

		MHI_DIR_IN,

		mhi_uci_generic_client_cb,

		NULL

		NULL,

		NULL,

		false,

		true

	},

	{

		MHI_CLIENT_QMI_OUT,
@@ -182,7 +185,10 @@ static const struct chan_attr uci_chan_attr_table[] = { 
		MAX_NR_TRBS_PER_CHAN,

		MHI_DIR_IN,

		NULL,

		NULL

		NULL,

		NULL,

		false,

		true

	},

	{

		MHI_CLIENT_IP_CTRL_0_OUT,
@@ -239,7 +245,7 @@ static const struct chan_attr uci_chan_attr_table[] = { 
		NULL,

		NULL,

		false,

		false,

		true,

		50

	},

	{
@@ -260,7 +266,11 @@ static const struct chan_attr uci_chan_attr_table[] = { 
		MAX_NR_TRBS_PER_CHAN,

		MHI_DIR_IN,

		mhi_uci_generic_client_cb,

		"android_adb"

		"android_adb",

		NULL,

		NULL,

		false,

		true

	},

};
@@ -980,8 +990,9 @@ static void mhi_parse_state(char *buf, int *nbytes, uint32_t info) 
static int mhi_state_uevent(struct device *dev, struct kobj_uevent_env *env)

{

	int rc, nbytes = 0;

	uint32_t info = 0;

	uint32_t info = 0, i;

	char buf[MHI_CTRL_STATE];

	const struct chan_attr *chan_attrib;



	rc = mhi_ctrl_state_info(MHI_DEV_UEVENT_CTRL, &info);

	if (rc) {
@@ -992,41 +1003,23 @@ static int mhi_state_uevent(struct device *dev, struct kobj_uevent_env *env) 
	mhi_parse_state(buf, &nbytes, info);

	add_uevent_var(env, "MHI_STATE=%s", buf);



	rc = mhi_ctrl_state_info(MHI_CLIENT_QMI_OUT, &info);

	if (rc) {

		pr_err("Failed to obtain channel 14 state\n");

		return -EINVAL;

	}

	nbytes = 0;

	mhi_parse_state(buf, &nbytes, info);

	add_uevent_var(env, "MHI_CHANNEL_STATE_14=%s", buf);



	rc = mhi_ctrl_state_info(MHI_CLIENT_MBIM_OUT, &info);

	for (i = 0; i < ARRAY_SIZE(uci_chan_attr_table); i++) {

		chan_attrib = &uci_chan_attr_table[i];

		if (chan_attrib->state_bcast) {

			uci_log(UCI_DBG_ERROR, "Calling notify for ch %d\n",

					chan_attrib->chan_id);

			rc = mhi_ctrl_state_info(chan_attrib->chan_id, &info);

			if (rc) {

		pr_err("Failed to obtain channel 12 state\n");

				pr_err("Failed to obtain channel %d state\n",

						chan_attrib->chan_id);

				return -EINVAL;

			}

			nbytes = 0;

			mhi_parse_state(buf, &nbytes, info);

	add_uevent_var(env, "MHI_CHANNEL_STATE_12=%s", buf);



	rc = mhi_ctrl_state_info(MHI_CLIENT_DUN_OUT, &info);

	if (rc) {

		pr_err("Failed to obtain channel 32 state\n");

		return -EINVAL;

			add_uevent_var(env, "MHI_CHANNEL_STATE_%d=%s",

					chan_attrib->chan_id, buf);

		}

	nbytes = 0;

	mhi_parse_state(buf, &nbytes, info);

	add_uevent_var(env, "MHI_CHANNEL_STATE_32=%s", buf);



	rc = mhi_ctrl_state_info(MHI_CLIENT_ADB_OUT, &info);

	if (rc) {

		pr_err("Failed to obtain channel 36 state\n");

		return -EINVAL;

	}

	nbytes = 0;

	mhi_parse_state(buf, &nbytes, info);

	add_uevent_var(env, "MHI_CHANNEL_STATE_36=%s", buf);



	return 0;

}