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Commit ffb92f5b authored by Yuanyuan Liu's avatar Yuanyuan Liu Committed by Kyle Yan
Browse files

icnss: Export APIs for power on/off WLAN hardware 



Export APIs to WLAN driver to power on/off WLAN hardware.

CRs-Fixed: 1017496
Change-Id: I4b09b7e9ee97129f952d737a530fc04205259f24
Signed-off-by: default avatarYuanyuan Liu <yuanliu@codeaurora.org>
parent a1807a05

drivers/soc/qcom/icnss.c

+60 −0
Original line number Diff line number Diff line
@@ -118,6 +118,7 @@ struct icnss_driver_event { 


enum cnss_driver_state {

	ICNSS_WLFW_QMI_CONNECTED,

	ICNSS_POWER_ON,

	ICNSS_FW_READY,

	ICNSS_DRIVER_PROBED,

	ICNSS_FW_TEST_MODE,
@@ -171,6 +172,7 @@ static struct icnss_data { 
		icnss_mem_region[QMI_WLFW_MAX_NUM_MEMORY_REGIONS_V01];

	bool skip_qmi;

	struct dentry *root_dentry;

	spinlock_t on_off_lock;

} *penv;



static char *icnss_driver_event_to_str(enum icnss_driver_event_type type)
@@ -391,33 +393,85 @@ static void icnss_hw_reset(struct icnss_data *pdata) 
static int icnss_hw_power_on(struct icnss_data *pdata)

{

	int ret = 0;

	unsigned long flags;



	icnss_pr_dbg("Power on: state: 0x%lx\n", pdata->state);



	spin_lock_irqsave(&pdata->on_off_lock, flags);

	if (test_bit(ICNSS_POWER_ON, &pdata->state)) {

		spin_unlock_irqrestore(&pdata->on_off_lock, flags);

		return ret;

	}

	set_bit(ICNSS_POWER_ON, &pdata->state);

	spin_unlock_irqrestore(&pdata->on_off_lock, flags);



	ret = icnss_vreg_set(VREG_ON);

	if (ret)

		goto out;



	icnss_hw_release_reset(pdata);



	return ret;

out:

	clear_bit(ICNSS_POWER_ON, &pdata->state);

	return ret;

}



static int icnss_hw_power_off(struct icnss_data *pdata)

{

	int ret = 0;

	unsigned long flags;



	icnss_pr_dbg("Power off: 0x%lx\n", pdata->state);



	spin_lock_irqsave(&pdata->on_off_lock, flags);

	if (!test_bit(ICNSS_POWER_ON, &pdata->state)) {

		spin_unlock_irqrestore(&pdata->on_off_lock, flags);

		return ret;

	}

	clear_bit(ICNSS_POWER_ON, &pdata->state);

	spin_unlock_irqrestore(&pdata->on_off_lock, flags);



	icnss_hw_reset(pdata);



	ret = icnss_vreg_set(VREG_OFF);

	if (ret)

		goto out;



	return ret;

out:

	set_bit(ICNSS_POWER_ON, &pdata->state);

	return ret;

}



int icnss_power_on(struct device *dev)

{

	struct icnss_data *priv = dev_get_drvdata(dev);



	if (!priv) {

		icnss_pr_err("Invalid drvdata: dev %p, data %p\n",

			     dev, priv);

		return -EINVAL;

	}



	return icnss_hw_power_on(priv);

}

EXPORT_SYMBOL(icnss_power_on);



int icnss_power_off(struct device *dev)

{

	struct icnss_data *priv = dev_get_drvdata(dev);



	if (!priv) {

		icnss_pr_err("Invalid drvdata: dev %p, data %p\n",

			     dev, priv);

		return -EINVAL;

	}



	return icnss_hw_power_off(priv);

}

EXPORT_SYMBOL(icnss_power_off);



static int wlfw_msa_mem_info_send_sync_msg(void)

{

	int ret = 0;
@@ -1813,6 +1867,8 @@ static int icnss_probe(struct platform_device *pdev) 
	if (!penv)

		return -ENOMEM;



	dev_set_drvdata(dev, penv);



	penv->pdev = pdev;



	ret = icnss_dt_parse_vreg_info(dev, &penv->vreg_info, "vdd-io");
@@ -1918,6 +1974,7 @@ static int icnss_probe(struct platform_device *pdev) 
					       "qcom,skip-qmi");



	spin_lock_init(&penv->event_lock);

	spin_lock_init(&penv->on_off_lock);



	penv->event_wq = alloc_workqueue("icnss_driver_event", 0, 0);

	if (!penv->event_wq) {
@@ -1964,6 +2021,7 @@ unmap_mem_base: 
release_regulator:

	icnss_release_resources();

out:

	dev_set_drvdata(dev, NULL);

	devm_kfree(&pdev->dev, penv);

	penv = NULL;

	return ret;
@@ -2000,6 +2058,8 @@ static int icnss_remove(struct platform_device *pdev) 


	icnss_release_resources();



	dev_set_drvdata(&pdev->dev, NULL);



	return 0;

}

include/soc/qcom/icnss.h

+2 −0
Original line number Diff line number Diff line
@@ -98,5 +98,7 @@ extern int icnss_ce_request_irq(unsigned int ce_id, 
extern int icnss_get_ce_id(int irq);

extern int icnss_set_fw_debug_mode(bool enable_fw_log);

extern int icnss_get_irq(int ce_id);

extern int icnss_power_on(struct device *dev);

extern int icnss_power_off(struct device *dev);



#endif /* _ICNSS_WLAN_H_ */