Changeset 3e200736 in mainline for uspace/drv/bus/usb/uhci

Timestamp:

2014-01-18T21:34:32Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

a5361fb

Parents:

e26a9d95

Message:

uhci,ohci, ehci: Move interrupt replacement fibril to libusbhost

Location:

uspace/drv/bus/usb/uhci

Files:

• hc.c (modified) (3 diffs)
• hc.h (modified) (2 diffs)

uspace/drv/bus/usb/uhci/hc.c

@@ -96 +96 @@
 static int hc_init_transfer_lists(hc_t *instance);
 
-static int hc_interrupt_emulator(void *arg);
 static int hc_debug_checker(void *arg);
 
@@ -245 +244 @@
 
         hc_init_hw(instance);
-        if (!interrupts) {
-                instance->interrupt_emulator =
-                    fibril_create(hc_interrupt_emulator, instance);
-                fibril_add_ready(instance->interrupt_emulator);
-        }
         (void)hc_debug_checker;
 
@@ -460 +454 @@
 }
 
-/** Polling function, emulates interrupts.
- *
- * @param[in] arg UHCI hc structure to use.
- * @return EOK (should never return)
- */
-int hc_interrupt_emulator(void* arg)
-{
-        usb_log_debug("Started interrupt emulator.\n");
-        hc_t *instance = arg;
-        assert(instance);
-
-        while (1) {
-                /* Read and clear status register */
-                uint16_t status = pio_read_16(&instance->registers->usbsts);
-                pio_write_16(&instance->registers->usbsts, status);
-                if (status != 0)
-                        usb_log_debug2("UHCI status: %x.\n", status);
-                hc_interrupt(instance, status);
-                async_usleep(UHCI_INT_EMULATOR_TIMEOUT);
-        }
-        return EOK;
-}
-
 /** Debug function, checks consistency of memory structures.
  *

uspace/drv/bus/usb/uhci/hc.h

@@ -93 +93 @@
 
 #define UHCI_FRAME_LIST_COUNT 1024
-#define UHCI_INT_EMULATOR_TIMEOUT 10000
 #define UHCI_DEBUGER_TIMEOUT 5000000
 #define UHCI_ALLOWED_HW_FAIL 5
-#define UHCI_NEEDED_IRQ_COMMANDS 5
 
 /** Main UHCI driver structure */
@@ -118 +116 @@
         /** Pointer table to the above lists, helps during scheduling */
         transfer_list_t *transfers[2][4];
-        /** Fibril periodically checking status register*/
-        fid_t interrupt_emulator;
         /** Indicator of hw interrupts availability */
         bool hw_interrupts;