Changeset c9ce62a in mainline for uspace/drv/bus/usb/xhci/commands.c

Timestamp:

2017-07-13T18:42:42Z (8 years ago)

Author:

Jaroslav Jindrak <dzejrou@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

4fa5342

Parents:

665bf3c

Message:

Added sending function for the evaluate context command.

File:

• uspace/drv/bus/usb/xhci/commands.c (modified) (2 diffs)

uspace/drv/bus/usb/xhci/commands.c

@@ -142 +142 @@
 }
 
+int xhci_send_evaluate_context_command(xhci_hc_t *hc, uint32_t slot_id,
+                                       xhci_input_ctx_t *ictx)
+{
+        /**
+         * Note: All Drop Context flags of the input context shall be 0,
+         *       all Add Context flags shall be initialize to indicate IDs
+         *       of the contexts affected by the command.
+         *       Refer to sections 6.2.2.3 and 6.3.3.3 for further info.
+         */
+        xhci_trb_t trb;
+        memset(&trb, 0, sizeof(trb));
+
+        uint64_t phys_addr = (uint64_t) addr_to_phys(ictx);
+        trb.parameter = host2xhci(32, phys_addr & 0xFFFFFFFFFFFFFFF0);
+
+        trb.control = host2xhci(32, XHCI_TRB_TYPE_EVALUATE_CONTEXT_CMD << 10);
+        trb.control |= host2xhci(32, hc->command_ring.pcs);
+        trb.control |= host2xhci(32, slot_id << 24);
+
+        return enqueue_trb(hc, &trb, 0, 0);
+}
+
 static int report_error(int code)
 {
@@ -209 +231 @@
         case XHCI_TRB_TYPE_CONFIGURE_ENDPOINT_CMD:
                 return EOK;
+        case XHCI_TRB_TYPE_EVALUATE_CONTEXT_CMD:
+                return EOK;
         default:
                 usb_log_debug2("Unsupported command trb.");