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Commit 5e7b3dad authored by wujin's avatar wujin Committed by jin wu
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msm: usb: Add multi-lun support for UMS 



UMS(usb mass storage) need a new lun for internal
storage.So add a new lun number for internal mass storage.

Change-Id: I17ccb8f85d458567a1f1b35366b8b0834397601f
Signed-off-by: default avatarJin Wu <jinw@codeaurora.org>
parent 8899bb86

Documentation/devicetree/bindings/usb/msm-hsusb.txt

+2 −1
Original line number Diff line number Diff line
@@ -185,7 +185,8 @@ Optional properties : 
  for DMA latency in microsecs.

- qcom,android-usb-cdrom : if this property is present then device creates

  a new LUN as CD-ROM



- qcom,android-usb-internal-ums : if this property is present then device

  creates a new LUN as internal usb mass storage

Example Android USB device node :

	android_usb@fc42b0c8 {

		compatible = "qcom,android-usb";

drivers/usb/gadget/android.c

+14 −5
Original line number Diff line number Diff line
@@ -1993,11 +1993,18 @@ static int mass_storage_function_init(struct android_usb_function *f, 
	config->fsg.nluns = 1;

	name[0] = "lun";

	if (dev->pdata && dev->pdata->cdrom) {

		config->fsg.nluns = 2;

		config->fsg.luns[1].cdrom = 1;

		config->fsg.luns[1].ro = 1;

		config->fsg.luns[1].removable = 0;

		name[1] = "lun0";

		config->fsg.luns[config->fsg.nluns].cdrom = 1;

		config->fsg.luns[config->fsg.nluns].ro = 1;

		config->fsg.luns[config->fsg.nluns].removable = 0;

		name[config->fsg.nluns] = "lun0";

		config->fsg.nluns++;

	}

	if (dev->pdata && dev->pdata->internal_ums) {

		config->fsg.luns[config->fsg.nluns].cdrom = 0;

		config->fsg.luns[config->fsg.nluns].ro = 0;

		config->fsg.luns[config->fsg.nluns].removable = 1;

		name[config->fsg.nluns] = "lun1";

		config->fsg.nluns++;

	}



	config->fsg.luns[0].removable = 1;
@@ -3131,6 +3138,8 @@ static int android_probe(struct platform_device *pdev) 
				&pdata->swfi_latency);

		pdata->cdrom = of_property_read_bool(pdev->dev.of_node,

				"qcom,android-usb-cdrom");

		pdata->internal_ums = of_property_read_bool(pdev->dev.of_node,

				"qcom,android-usb-internal-ums");

	} else {

		pdata = pdev->dev.platform_data;

	}

include/linux/usb/android.h

+1 −0
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ struct android_usb_platform_data { 
	u32 swfi_latency;

	u8 usb_core_id;

	bool cdrom;

	bool internal_ums;

};



#ifndef CONFIG_TARGET_CORE