Author: hselasky
Date: Wed Jun 22 09:03:55 2016
New Revision: 302076
URL: https://svnweb.freebsd.org/changeset/base/302076
Log:
Update the definition for number of scratch pages to match the latest
version of the XHCI specification. Make sure the code can handle the
maximum number of allowed scratch pages.
Submitted by: shichun...@dell.com
Approved by: re (hrs)
MFC after: 1 week
Modified:
head/sys/dev/usb/controller/xhci.c
head/sys/dev/usb/controller/xhci.h
head/sys/dev/usb/controller/xhcireg.h
Modified: head/sys/dev/usb/controller/xhci.c
==============================================================================
--- head/sys/dev/usb/controller/xhci.c Wed Jun 22 07:49:59 2016
(r302075)
+++ head/sys/dev/usb/controller/xhci.c Wed Jun 22 09:03:55 2016
(r302076)
@@ -210,7 +210,7 @@ static void
xhci_iterate_hw_softc(struct usb_bus *bus, usb_bus_mem_sub_cb_t *cb)
{
struct xhci_softc *sc = XHCI_BUS2SC(bus);
- uint8_t i;
+ uint16_t i;
cb(bus, &sc->sc_hw.root_pc, &sc->sc_hw.root_pg,
sizeof(struct xhci_hw_root), XHCI_PAGE_SIZE);
@@ -218,7 +218,7 @@ xhci_iterate_hw_softc(struct usb_bus *bu
cb(bus, &sc->sc_hw.ctx_pc, &sc->sc_hw.ctx_pg,
sizeof(struct xhci_dev_ctx_addr), XHCI_PAGE_SIZE);
- for (i = 0; i != XHCI_MAX_SCRATCHPADS; i++) {
+ for (i = 0; i != sc->sc_noscratch; i++) {
cb(bus, &sc->sc_hw.scratch_pc[i], &sc->sc_hw.scratch_pg[i],
XHCI_PAGE_SIZE, XHCI_PAGE_SIZE);
}
Modified: head/sys/dev/usb/controller/xhci.h
==============================================================================
--- head/sys/dev/usb/controller/xhci.h Wed Jun 22 07:49:59 2016
(r302075)
+++ head/sys/dev/usb/controller/xhci.h Wed Jun 22 09:03:55 2016
(r302076)
@@ -30,7 +30,7 @@
#define XHCI_MAX_DEVICES MIN(USB_MAX_DEVICES, 128)
#define XHCI_MAX_ENDPOINTS 32 /* hardcoded - do not change */
-#define XHCI_MAX_SCRATCHPADS 32
+#define XHCI_MAX_SCRATCHPADS 1024
#define XHCI_MAX_EVENTS (16 * 13)
#define XHCI_MAX_COMMANDS (16 * 1)
#define XHCI_MAX_RSEG 1
@@ -496,14 +496,15 @@ struct xhci_softc {
uint16_t sc_command_idx;
uint16_t sc_imod_default;
+ /* number of scratch pages */
+ uint16_t sc_noscratch;
+
uint8_t sc_event_ccs;
uint8_t sc_command_ccs;
/* number of XHCI device slots */
uint8_t sc_noslot;
/* number of ports on root HUB */
uint8_t sc_noport;
- /* number of scratch pages */
- uint8_t sc_noscratch;
/* root HUB device configuration */
uint8_t sc_conf;
/* root HUB port event bitmap, max 256 ports */
Modified: head/sys/dev/usb/controller/xhcireg.h
==============================================================================
--- head/sys/dev/usb/controller/xhcireg.h Wed Jun 22 07:49:59 2016
(r302075)
+++ head/sys/dev/usb/controller/xhcireg.h Wed Jun 22 09:03:55 2016
(r302076)
@@ -52,8 +52,8 @@
#define XHCI_HCSPARAMS2 0x08 /* RO structural parameters 2 */
#define XHCI_HCS2_IST(x) ((x) & 0xF)
#define XHCI_HCS2_ERST_MAX(x) (((x) >> 4) & 0xF)
-#define XHCI_HCS2_SPR(x) (((x) >> 24) & 0x1)
-#define XHCI_HCS2_SPB_MAX(x) (((x) >> 27) & 0x7F)
+#define XHCI_HCS2_SPR(x) (((x) >> 26) & 0x1)
+#define XHCI_HCS2_SPB_MAX(x) ((((x) >> 16) & 0x3E0) | (((x) >> 27) &
0x1F))
#define XHCI_HCSPARAMS3 0x0C /* RO structural parameters 3 */
#define XHCI_HCS3_U1_DEL(x) ((x) & 0xFF)
#define XHCI_HCS3_U2_DEL(x) (((x) >> 16) & 0xFFFF)
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