usb: host: hsic: Add support for usb bam on host mode
USB bam now supports host mode. IPA or any other peer can transfer
data in bam to bam mode to the USB, and the later will sent it to
a connected device.
Change-Id: I9e76c1584b08c317cb44c2316b64002422f29cca
Signed-off-by: Shimrit Malichi <smalichi@codeaurora.org>
diff --git a/drivers/usb/host/ehci-msm-hsic.c b/drivers/usb/host/ehci-msm-hsic.c
index ea5484b..c15bb99 100644
--- a/drivers/usb/host/ehci-msm-hsic.c
+++ b/drivers/usb/host/ehci-msm-hsic.c
@@ -49,6 +49,7 @@
#include <linux/spinlock.h>
#include <linux/cpu.h>
#include <mach/rpm-regulator.h>
+#include "hbm.c"
#define MSM_USB_BASE (hcd->regs)
#define USB_REG_START_OFFSET 0x90
@@ -105,6 +106,7 @@
int reset_again;
struct pm_qos_request pm_qos_req_dma;
+ unsigned enable_hbm:1;
};
struct msm_hsic_hcd *__mehci;
@@ -1367,6 +1369,18 @@
pm_runtime_set_autosuspend_delay(&dev->dev, 200);
}
+static int ehci_msm_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
+ gfp_t mem_flags)
+{
+ struct msm_hsic_hcd *mehci = hcd_to_hsic(hcd);
+ struct usb_host_bam_type *usb_host_bam =
+ (struct usb_host_bam_type *)urb->priv_data;
+
+ if (usb_host_bam && mehci && mehci->enable_hbm)
+ return hbm_urb_enqueue(hcd, urb, mem_flags);
+ return ehci_urb_enqueue(hcd, urb, mem_flags);
+}
+
static struct hc_driver msm_hsic_driver = {
.description = hcd_name,
.product_desc = "Qualcomm EHCI Host Controller using HSIC",
@@ -1387,7 +1401,7 @@
/*
* managing i/o requests and associated device resources
*/
- .urb_enqueue = ehci_urb_enqueue,
+ .urb_enqueue = ehci_msm_urb_enqueue,
.urb_dequeue = ehci_urb_dequeue,
.endpoint_disable = ehci_endpoint_disable,
.endpoint_reset = ehci_endpoint_reset,
@@ -1778,6 +1792,8 @@
pdata->pool_64_bit_align = of_property_read_bool(node,
"qcom,pool-64-bit-align");
+ pdata->enable_hbm = of_property_read_bool(node,
+ "qcom,enable-hbm");
return pdata;
}
@@ -1857,6 +1873,7 @@
mehci->ehci.resume_sof_bug = 1;
mehci->ehci.pool_64_bit_align = pdata->pool_64_bit_align;
+ mehci->enable_hbm = pdata->enable_hbm;
if (pdata)
mehci->ehci.log2_irq_thresh = pdata->log2_irq_thresh;
@@ -2006,6 +2023,9 @@
if (pdev->dev.parent)
pm_runtime_put_sync(pdev->dev.parent);
+ if (mehci->enable_hbm)
+ hbm_init(hcd);
+
return 0;
destroy_wq:
@@ -2035,6 +2055,9 @@
pm_runtime_set_suspended(&pdev->dev);
+ if (mehci->enable_hbm)
+ hbm_uninit();
+
/* Remove the HCD prior to releasing our resources. */
usb_remove_hcd(hcd);