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@@ -275,7 +275,7 @@ static void log_irqs(u32 evt)
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!(evt & OHCI1394_busReset))
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return;
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- fw_notify("IRQ %08x%s%s%s%s%s%s%s%s%s%s%s%s%s\n", evt,
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+ fw_notify("IRQ %08x%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", evt,
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evt & OHCI1394_selfIDComplete ? " selfID" : "",
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evt & OHCI1394_RQPkt ? " AR_req" : "",
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evt & OHCI1394_RSPkt ? " AR_resp" : "",
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@@ -286,6 +286,7 @@ static void log_irqs(u32 evt)
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evt & OHCI1394_postedWriteErr ? " postedWriteErr" : "",
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evt & OHCI1394_cycleTooLong ? " cycleTooLong" : "",
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evt & OHCI1394_cycle64Seconds ? " cycle64Seconds" : "",
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+ evt & OHCI1394_cycleInconsistent ? " cycleInconsistent" : "",
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evt & OHCI1394_regAccessFail ? " regAccessFail" : "",
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evt & OHCI1394_busReset ? " busReset" : "",
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evt & ~(OHCI1394_selfIDComplete | OHCI1394_RQPkt |
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@@ -293,6 +294,7 @@ static void log_irqs(u32 evt)
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OHCI1394_respTxComplete | OHCI1394_isochRx |
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OHCI1394_isochTx | OHCI1394_postedWriteErr |
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OHCI1394_cycleTooLong | OHCI1394_cycle64Seconds |
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+ OHCI1394_cycleInconsistent |
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OHCI1394_regAccessFail | OHCI1394_busReset)
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? " ?" : "");
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}
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@@ -1439,6 +1441,17 @@ static irqreturn_t irq_handler(int irq, void *data)
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OHCI1394_LinkControl_cycleMaster);
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}
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+ if (unlikely(event & OHCI1394_cycleInconsistent)) {
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+ /*
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+ * We need to clear this event bit in order to make
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+ * cycleMatch isochronous I/O work. In theory we should
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+ * stop active cycleMatch iso contexts now and restart
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+ * them at least two cycles later. (FIXME?)
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+ */
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+ if (printk_ratelimit())
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+ fw_notify("isochronous cycle inconsistent\n");
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+ }
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+
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if (event & OHCI1394_cycle64Seconds) {
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cycle_time = reg_read(ohci, OHCI1394_IsochronousCycleTimer);
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if ((cycle_time & 0x80000000) == 0)
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@@ -1528,6 +1541,7 @@ static int ohci_enable(struct fw_card *card, u32 *config_rom, size_t length)
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OHCI1394_reqTxComplete | OHCI1394_respTxComplete |
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OHCI1394_isochRx | OHCI1394_isochTx |
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OHCI1394_postedWriteErr | OHCI1394_cycleTooLong |
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+ OHCI1394_cycleInconsistent |
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OHCI1394_cycle64Seconds | OHCI1394_regAccessFail |
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OHCI1394_masterIntEnable);
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if (param_debug & OHCI_PARAM_DEBUG_BUSRESETS)
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@@ -1890,15 +1904,30 @@ static int handle_it_packet(struct context *context,
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{
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struct iso_context *ctx =
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container_of(context, struct iso_context, context);
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+ int i;
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+ struct descriptor *pd;
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- if (last->transfer_status == 0)
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- /* This descriptor isn't done yet, stop iteration. */
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+ for (pd = d; pd <= last; pd++)
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+ if (pd->transfer_status)
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+ break;
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+ if (pd > last)
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+ /* Descriptor(s) not done yet, stop iteration */
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return 0;
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- if (le16_to_cpu(last->control) & DESCRIPTOR_IRQ_ALWAYS)
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+ i = ctx->header_length;
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+ if (i + 4 < PAGE_SIZE) {
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+ /* Present this value as big-endian to match the receive code */
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+ *(__be32 *)(ctx->header + i) = cpu_to_be32(
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+ ((u32)le16_to_cpu(pd->transfer_status) << 16) |
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+ le16_to_cpu(pd->res_count));
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+ ctx->header_length += 4;
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+ }
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+ if (le16_to_cpu(last->control) & DESCRIPTOR_IRQ_ALWAYS) {
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ctx->base.callback(&ctx->base, le16_to_cpu(last->res_count),
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- 0, NULL, ctx->base.callback_data);
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-
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+ ctx->header_length, ctx->header,
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+ ctx->base.callback_data);
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+ ctx->header_length = 0;
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+ }
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return 1;
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}
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