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DM USB: xHCI: DM USB: xHCI: Support port change event for hot connection

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This patch implements the port change event related function, it
triggered when USB device be hot plugged in.

Change-Id: I065c1e93779f85f8ee6031960e129b59146e1bb7
Signed-off-by: Wu, Xiaoguang <xiaoguang.wu@intel.com>
Reviewed-by: Shuo Liu <shuo.a.liu@intel.com>
Reviewed-by: Yu Wang <yu1.wang@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Wu, Xiaoguang
2018-05-17 11:14:51 +08:00
committed by lijinxia
parent caf4916e99
commit 3b6392740e
1 changed files with 57 additions and 0 deletions
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57
devicemodel/hw/pci/xhci.c
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@@ -319,6 +319,9 @@ static void pci_xhci_init_port(struct pci_xhci_vdev *xdev, int portn);
static struct pci_xhci_dev_emu *pci_xhci_dev_create(struct pci_xhci_vdev *
xdev, void *dev_data);
static void pci_xhci_dev_destroy(struct pci_xhci_dev_emu *de);
static int pci_xhci_port_chg(struct pci_xhci_vdev *xdev, int port, int conn);
static void pci_xhci_set_evtrb(struct xhci_trb *evtrb, uint64_t port,
uint32_t errcode, uint32_t evtype);
static int
pci_xhci_native_usb_dev_conn_cb(void *hci_data, void *dev_data)
@@ -398,6 +401,10 @@ pci_xhci_native_usb_dev_conn_cb(void *hci_data, void *dev_data)
native_vid, native_pid, native_bus, native_port,
slot, port);
/* Trigger port change event for the arriving device */
if (pci_xhci_port_chg(xdev, port, 1))
UPRINTF(LFTL, "fail to report port event\n");
return 0;
errout:
pci_xhci_dev_destroy(de);
@@ -490,6 +497,56 @@ pci_xhci_dev_destroy(struct pci_xhci_dev_emu *de)
}
}
static inline int
pci_xhci_is_valid_portnum(int n)
{
return n > 0 && n < XHCI_MAX_DEVS;
}
static int
pci_xhci_port_chg(struct pci_xhci_vdev *xdev, int port, int conn)
{
int speed, error;
struct xhci_trb evtrb;
struct pci_xhci_portregs *reg;
struct pci_xhci_dev_emu *dev;
assert(xdev != NULL);
reg = XHCI_PORTREG_PTR(xdev, port);
dev = XHCI_DEVINST_PTR(xdev, port);
if (!dev || !dev->dev_ue || !reg) {
UPRINTF(LWRN, "find nullptr with port %d\r\n", port);
return -1;
}
/* TODO: add USB 3.0 port state */
if (conn == 0) {
reg->portsc &= ~XHCI_PS_CCS;
reg->portsc |= (XHCI_PS_CSC |
XHCI_PS_PLS_SET(UPS_PORT_LS_RX_DET));
} else {
speed = dev->dev_ue->ue_usbspeed;
reg->portsc = XHCI_PS_CCS | XHCI_PS_PP | XHCI_PS_CSC;
reg->portsc |= XHCI_PS_SPEED_SET(speed);
}
/* make an event for the guest OS */
pci_xhci_set_evtrb(&evtrb,
port,
XHCI_TRB_ERROR_SUCCESS,
XHCI_TRB_EVENT_PORT_STS_CHANGE);
/* put it in the event ring */
error = pci_xhci_insert_event(xdev, &evtrb, 1);
if (error != XHCI_TRB_ERROR_SUCCESS)
UPRINTF(LWRN, "fail to report port change\r\n");
UPRINTF(LDBG, "%s: port %d:%08X\r\n", __func__, port, reg->portsc);
return (error == XHCI_TRB_ERROR_SUCCESS) ? 0 : -1;
}
static void
pci_xhci_set_evtrb(struct xhci_trb *evtrb, uint64_t port, uint32_t errcode,
uint32_t evtype)