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Commit 6b805671 authored by Komal Seelam's avatar Komal Seelam
Browse files

cnss: Add Support to load driver based on target attached 



In Next Generation platforms; we support driver load at the bootup
based on the target attached.
Platform Driver(PD) exports the target revision read in pcie probe
to userspace through sys interface wlan_setup.

cnss-daemon in user space loads the driver based on the target revision
read from the sys file.

This change creates the sys interface to export the target parameters.

CRs-Fixed: 732694
Change-Id: Ia364f9c5df6116b9ca6ed28f545c3f0dd244386b
Signed-off-by: default avatarKomal Kumar <kseelam@codeaurora.org>
parent edf9ef3a

drivers/net/wireless/cnss/cnss.c

+25 −0
Original line number Diff line number Diff line
@@ -944,6 +944,18 @@ int cnss_get_fw_image(dma_addr_t *fw_image, u32 *image_size) 
}

EXPORT_SYMBOL(cnss_get_fw_image);



static ssize_t wlan_setup_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	if (!penv)

		return -ENODEV;



	return scnprintf(buf, PAGE_SIZE, "%u\n", penv->revision_id);

}



static DEVICE_ATTR(wlan_setup, S_IRUSR,

			wlan_setup_show, NULL);



static int cnss_wlan_pci_probe(struct pci_dev *pdev,

			       const struct pci_device_id *id)

{
@@ -1009,6 +1021,13 @@ static int cnss_wlan_pci_probe(struct pci_dev *pdev, 


	cnss_wlan_fw_mem_alloc(pdev);



	ret = device_create_file(&penv->pldev->dev, &dev_attr_wlan_setup);



	if (ret) {

		pr_err("Can't Create Device file\n");

		goto err_pcie_suspend;

	}



	if (penv->revision_id != QCA6174_FW_3_0 ||

		penv->revision_id != QCA6174_FW_3_2) {

		pr_debug("Code-swap not enabled: %d\n", penv->revision_id);
@@ -1051,7 +1070,13 @@ err_pcie_suspend: 


static void cnss_wlan_pci_remove(struct pci_dev *pdev)

{

	struct device *dev;



	if (!penv)

		return;



	dev = &penv->pldev->dev;

	device_remove_file(dev, &dev_attr_wlan_setup);

}



static int cnss_wlan_pci_suspend(struct pci_dev *pdev, pm_message_t state)