dev/acpica/acpi_ec.c

70  * The encoding of the EC status register is illustrated below.
167 /* Default delay in microseconds between each run of the status polling loop. */
173 #define EVENT_READY(event, status)			\
175 	 ((status) & EC_FLAG_OUTPUT_BUFFER) != 0) ||	\
177 	 ((status) & EC_FLAG_INPUT_BUFFER) == 0))
196     ACPI_STATUS	status;
199     status = AE_OK;
201 	status = AcpiAcquireGlobalLock(EC_LOCK_TIMEOUT, &sc->ec_glkhandle);
202 	if (ACPI_FAILURE(status))
203 	    return (status);
206     return (status);
278     ACPI_STATUS	     status;
286     status = AcpiGetTable(ACPI_SIG_ECDT, 1, (ACPI_TABLE_HEADER **)&ecdt);
287     if (ACPI_FAILURE(status) ||
301     status = AcpiGetHandle(NULL, ecdt->Id, &h);
302     if (ACPI_FAILURE(status)) {
340     ACPI_STATUS status;
375 	status = acpi_GetInteger(h, "_UID", &params->uid);
376 	if (ACPI_FAILURE(status))
378 	status = acpi_GetInteger(h, "_GLK", &params->glk);
379 	if (ACPI_FAILURE(status))
384 	 * signal status (SCI).  If it's a package, it contains a reference
387 	status = AcpiEvaluateObject(h, "_GPE", NULL, &buf);
388 	if (ACPI_FAILURE(status)) {
390 			  AcpiFormatException(status));
468     /* Attach bus resources for data and command/status ports. */
483 	device_printf(dev, "can't allocate command/status port\n");
574     ACPI_STATUS status;
577     status = EcSpaceHandler(ACPI_READ, addr, width * 8, val, sc, NULL);
578     if (ACPI_FAILURE(status))
587     ACPI_STATUS status;
590     status = EcSpaceHandler(ACPI_WRITE, addr, width * 8, &val, sc, NULL);
591     if (ACPI_FAILURE(status))
599     ACPI_STATUS status;
602     status = AE_NO_HARDWARE_RESPONSE;
609 	CTR2(KTR_ACPI, "ec %s wait ready, status %#x", msg, ec_status);
610 	status = AE_OK;
612     return (status);
716      * Notify EcWaitEvent() that the status register is now fresh.  If we
725      * If the EC_SCI bit of the status register is set, queue a query handler.
868 	 * Wait for the GPE to signal the status changed, checking the
869 	 * status register each time we get one.  It's possible to get a
914     ACPI_STATUS	status;
945     status = EcWaitEvent(sc, EC_EVENT_INPUT_BUFFER_EMPTY, 0);
946     if (ACPI_FAILURE(status))
947 	return (status);
953     status = EcWaitEvent(sc, event, gen_count);
954     if (ACPI_SUCCESS(status)) {
959 		status = AE_ERROR;
963     return (status);
969     ACPI_STATUS	status;
977 	status = EcCommand(sc, EC_COMMAND_READ);
978 	if (ACPI_FAILURE(status))
979 	    return (status);
983 	status = EcWaitEvent(sc, EC_EVENT_OUTPUT_BUFFER_FULL, gen_count);
984 	if (ACPI_SUCCESS(status)) {
993     return (status);
999     ACPI_STATUS	status;
1005     status = EcCommand(sc, EC_COMMAND_WRITE);
1006     if (ACPI_FAILURE(status))
1007 	return (status);
1011     status = EcWaitEvent(sc, EC_EVENT_INPUT_BUFFER_EMPTY, gen_count);
1012     if (ACPI_FAILURE(status)) {
1014 	return (status);
1019     status = EcWaitEvent(sc, EC_EVENT_INPUT_BUFFER_EMPTY, gen_count);
1020     if (ACPI_FAILURE(status)) {
1022 	return (status);